diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/sound/firewire | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/sound/firewire')
59 files changed, 16359 insertions, 0 deletions
diff --git a/kernel/sound/firewire/Kconfig b/kernel/sound/firewire/Kconfig new file mode 100644 index 000000000..ecec54778 --- /dev/null +++ b/kernel/sound/firewire/Kconfig @@ -0,0 +1,121 @@ +menuconfig SND_FIREWIRE + bool "FireWire sound devices" + depends on FIREWIRE + default y + help + Support for IEEE-1394/FireWire/iLink sound devices. + +if SND_FIREWIRE && FIREWIRE + +config SND_FIREWIRE_LIB + tristate + select SND_PCM + select SND_RAWMIDI + +config SND_DICE + tristate "DICE-based DACs support" + select SND_HWDEP + select SND_FIREWIRE_LIB + help + Say Y here to include support for many DACs based on the DICE + chip family (DICE-II/Jr/Mini) which TC Applied Technologies produces. + + To compile this driver as a module, choose M here: the module + will be called snd-dice. + +config SND_OXFW + tristate "Oxford Semiconductor FW970/971 chipset support" + select SND_FIREWIRE_LIB + select SND_HWDEP + help + Say Y here to include support for FireWire devices based on + Oxford Semiconductor FW970/971 chipset. + * Griffin Firewave + * LaCie Firewire Speakers + * Behringer F-Control Audio 202 + * Mackie(Loud) Onyx-i series (former models) + * Mackie(Loud) Onyx Satellite + * Mackie(Loud) Tapco Link.Firewire + * Mackie(Loud) d.2 pro/d.4 pro + * Mackie(Loud) U.420/U.420d + + To compile this driver as a module, choose M here: the module + will be called snd-oxfw. + +config SND_ISIGHT + tristate "Apple iSight microphone" + select SND_FIREWIRE_LIB + help + Say Y here to include support for the front and rear microphones + of the Apple iSight web camera. + + To compile this driver as a module, choose M here: the module + will be called snd-isight. + +config SND_SCS1X + tristate "Stanton Control System 1 MIDI" + select SND_FIREWIRE_LIB + help + Say Y here to include support for the MIDI ports of the Stanton + SCS.1d/SCS.1m DJ controllers. (SCS.1m audio is still handled + by FFADO.) + + To compile this driver as a module, choose M here: the module + will be called snd-scs1x. + +config SND_FIREWORKS + tristate "Echo Fireworks board module support" + select SND_FIREWIRE_LIB + select SND_HWDEP + help + Say Y here to include support for FireWire devices based + on Echo Digital Audio Fireworks board: + * Mackie Onyx 400F/1200F + * Echo AudioFire12/8(until 2009 July) + * Echo AudioFire2/4/Pre8/8(since 2009 July) + * Echo Fireworks 8/HDMI + * Gibson Robot Interface Pack/GoldTop + + To compile this driver as a module, choose M here: the module + will be called snd-fireworks. + +config SND_BEBOB + tristate "BridgeCo DM1000/DM1100/DM1500 with BeBoB firmware" + select SND_FIREWIRE_LIB + select SND_HWDEP + help + Say Y here to include support for FireWire devices based + on BridgeCo DM1000/DM1100/DM1500 with BeBoB firmware: + * Edirol FA-66/FA-101 + * PreSonus FIREBOX/FIREPOD/FP10/Inspire1394 + * BridgeCo RDAudio1/Audio5 + * Mackie Onyx 1220/1620/1640 (FireWire I/O Card) + * Mackie d.2 (FireWire Option) + * Stanton FinalScratch 2 (ScratchAmp) + * Tascam IF-FW/DM + * Behringer XENIX UFX 1204/1604 + * Behringer Digital Mixer X32 series (X-UF Card) + * Apogee Rosetta 200/400 (X-FireWire card) + * Apogee DA/AD/DD-16X (X-FireWire card) + * Apogee Ensemble + * ESI QuataFire 610 + * AcousticReality eARMasterOne + * CME MatrixKFW + * Phonic Helix Board 12 MkII/18 MkII/24 MkII + * Phonic Helix Board 12 Universal/18 Universal/24 Universal + * Lynx Aurora 8/16 (LT-FW) + * ICON FireXon + * PrismSound Orpheus/ADA-8XR + * TerraTec PHASE 24 FW/PHASE X24 FW/PHASE 88 Rack FW + * TerraTec EWS MIC2/EWS MIC8 + * TerraTec Aureon 7.1 FireWire + * Yamaha GO44/GO46 + * Focusrite Saffire/Saffire LE/SaffirePro10 IO/SaffirePro26 IO + * M-Audio FireWire410/AudioPhile/Solo + * M-Audio Ozonic/NRV10/ProfireLightBridge + * M-Audio FireWire 1814/ProjectMix IO + + To compile this driver as a module, choose M here: the module + will be called snd-bebob. + +endif # SND_FIREWIRE diff --git a/kernel/sound/firewire/Makefile b/kernel/sound/firewire/Makefile new file mode 100644 index 000000000..8b37f084b --- /dev/null +++ b/kernel/sound/firewire/Makefile @@ -0,0 +1,13 @@ +snd-firewire-lib-objs := lib.o iso-resources.o packets-buffer.o \ + fcp.o cmp.o amdtp.o +snd-oxfw-objs := oxfw.o +snd-isight-objs := isight.o +snd-scs1x-objs := scs1x.o + +obj-$(CONFIG_SND_FIREWIRE_LIB) += snd-firewire-lib.o +obj-$(CONFIG_SND_DICE) += dice/ +obj-$(CONFIG_SND_OXFW) += oxfw/ +obj-$(CONFIG_SND_ISIGHT) += snd-isight.o +obj-$(CONFIG_SND_SCS1X) += snd-scs1x.o +obj-$(CONFIG_SND_FIREWORKS) += fireworks/ +obj-$(CONFIG_SND_BEBOB) += bebob/ diff --git a/kernel/sound/firewire/amdtp.c b/kernel/sound/firewire/amdtp.c new file mode 100644 index 000000000..e061355f5 --- /dev/null +++ b/kernel/sound/firewire/amdtp.c @@ -0,0 +1,1064 @@ +/* + * Audio and Music Data Transmission Protocol (IEC 61883-6) streams + * with Common Isochronous Packet (IEC 61883-1) headers + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include <linux/device.h> +#include <linux/err.h> +#include <linux/firewire.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/sched.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/rawmidi.h> +#include "amdtp.h" + +#define TICKS_PER_CYCLE 3072 +#define CYCLES_PER_SECOND 8000 +#define TICKS_PER_SECOND (TICKS_PER_CYCLE * CYCLES_PER_SECOND) + +/* + * Nominally 3125 bytes/second, but the MIDI port's clock might be + * 1% too slow, and the bus clock 100 ppm too fast. + */ +#define MIDI_BYTES_PER_SECOND 3093 + +/* + * Several devices look only at the first eight data blocks. + * In any case, this is more than enough for the MIDI data rate. + */ +#define MAX_MIDI_RX_BLOCKS 8 + +#define TRANSFER_DELAY_TICKS 0x2e00 /* 479.17 microseconds */ + +/* isochronous header parameters */ +#define ISO_DATA_LENGTH_SHIFT 16 +#define TAG_CIP 1 + +/* common isochronous packet header parameters */ +#define CIP_EOH (1u << 31) +#define CIP_EOH_MASK 0x80000000 +#define CIP_FMT_AM (0x10 << 24) +#define CIP_FMT_MASK 0x3f000000 +#define CIP_SYT_MASK 0x0000ffff +#define CIP_SYT_NO_INFO 0xffff +#define CIP_FDF_MASK 0x00ff0000 +#define CIP_FDF_SFC_SHIFT 16 + +/* + * Audio and Music transfer protocol specific parameters + * only "Clock-based rate control mode" is supported + */ +#define AMDTP_FDF_AM824 (0 << (CIP_FDF_SFC_SHIFT + 3)) +#define AMDTP_FDF_NO_DATA 0xff +#define AMDTP_DBS_MASK 0x00ff0000 +#define AMDTP_DBS_SHIFT 16 +#define AMDTP_DBC_MASK 0x000000ff + +/* TODO: make these configurable */ +#define INTERRUPT_INTERVAL 16 +#define QUEUE_LENGTH 48 + +#define IN_PACKET_HEADER_SIZE 4 +#define OUT_PACKET_HEADER_SIZE 0 + +static void pcm_period_tasklet(unsigned long data); + +/** + * amdtp_stream_init - initialize an AMDTP stream structure + * @s: the AMDTP stream to initialize + * @unit: the target of the stream + * @dir: the direction of stream + * @flags: the packet transmission method to use + */ +int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit, + enum amdtp_stream_direction dir, enum cip_flags flags) +{ + s->unit = unit; + s->direction = dir; + s->flags = flags; + s->context = ERR_PTR(-1); + mutex_init(&s->mutex); + tasklet_init(&s->period_tasklet, pcm_period_tasklet, (unsigned long)s); + s->packet_index = 0; + + init_waitqueue_head(&s->callback_wait); + s->callbacked = false; + s->sync_slave = NULL; + + return 0; +} +EXPORT_SYMBOL(amdtp_stream_init); + +/** + * amdtp_stream_destroy - free stream resources + * @s: the AMDTP stream to destroy + */ +void amdtp_stream_destroy(struct amdtp_stream *s) +{ + WARN_ON(amdtp_stream_running(s)); + mutex_destroy(&s->mutex); +} +EXPORT_SYMBOL(amdtp_stream_destroy); + +const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT] = { + [CIP_SFC_32000] = 8, + [CIP_SFC_44100] = 8, + [CIP_SFC_48000] = 8, + [CIP_SFC_88200] = 16, + [CIP_SFC_96000] = 16, + [CIP_SFC_176400] = 32, + [CIP_SFC_192000] = 32, +}; +EXPORT_SYMBOL(amdtp_syt_intervals); + +const unsigned int amdtp_rate_table[CIP_SFC_COUNT] = { + [CIP_SFC_32000] = 32000, + [CIP_SFC_44100] = 44100, + [CIP_SFC_48000] = 48000, + [CIP_SFC_88200] = 88200, + [CIP_SFC_96000] = 96000, + [CIP_SFC_176400] = 176400, + [CIP_SFC_192000] = 192000, +}; +EXPORT_SYMBOL(amdtp_rate_table); + +/** + * amdtp_stream_add_pcm_hw_constraints - add hw constraints for PCM substream + * @s: the AMDTP stream, which must be initialized. + * @runtime: the PCM substream runtime + */ +int amdtp_stream_add_pcm_hw_constraints(struct amdtp_stream *s, + struct snd_pcm_runtime *runtime) +{ + int err; + + /* AM824 in IEC 61883-6 can deliver 24bit data */ + err = snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24); + if (err < 0) + goto end; + + /* + * Currently firewire-lib processes 16 packets in one software + * interrupt callback. This equals to 2msec but actually the + * interval of the interrupts has a jitter. + * Additionally, even if adding a constraint to fit period size to + * 2msec, actual calculated frames per period doesn't equal to 2msec, + * depending on sampling rate. + * Anyway, the interval to call snd_pcm_period_elapsed() cannot 2msec. + * Here let us use 5msec for safe period interrupt. + */ + err = snd_pcm_hw_constraint_minmax(runtime, + SNDRV_PCM_HW_PARAM_PERIOD_TIME, + 5000, UINT_MAX); + if (err < 0) + goto end; + + /* Non-Blocking stream has no more constraints */ + if (!(s->flags & CIP_BLOCKING)) + goto end; + + /* + * One AMDTP packet can include some frames. In blocking mode, the + * number equals to SYT_INTERVAL. So the number is 8, 16 or 32, + * depending on its sampling rate. For accurate period interrupt, it's + * preferrable to align period/buffer sizes to current SYT_INTERVAL. + * + * TODO: These constraints can be improved with proper rules. + * Currently apply LCM of SYT_INTERVALs. + */ + err = snd_pcm_hw_constraint_step(runtime, 0, + SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 32); + if (err < 0) + goto end; + err = snd_pcm_hw_constraint_step(runtime, 0, + SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32); +end: + return err; +} +EXPORT_SYMBOL(amdtp_stream_add_pcm_hw_constraints); + +/** + * amdtp_stream_set_parameters - set stream parameters + * @s: the AMDTP stream to configure + * @rate: the sample rate + * @pcm_channels: the number of PCM samples in each data block, to be encoded + * as AM824 multi-bit linear audio + * @midi_ports: the number of MIDI ports (i.e., MPX-MIDI Data Channels) + * + * The parameters must be set before the stream is started, and must not be + * changed while the stream is running. + */ +void amdtp_stream_set_parameters(struct amdtp_stream *s, + unsigned int rate, + unsigned int pcm_channels, + unsigned int midi_ports) +{ + unsigned int i, sfc, midi_channels; + + midi_channels = DIV_ROUND_UP(midi_ports, 8); + + if (WARN_ON(amdtp_stream_running(s)) | + WARN_ON(pcm_channels > AMDTP_MAX_CHANNELS_FOR_PCM) | + WARN_ON(midi_channels > AMDTP_MAX_CHANNELS_FOR_MIDI)) + return; + + for (sfc = 0; sfc < ARRAY_SIZE(amdtp_rate_table); ++sfc) + if (amdtp_rate_table[sfc] == rate) + goto sfc_found; + WARN_ON(1); + return; + +sfc_found: + s->pcm_channels = pcm_channels; + s->sfc = sfc; + s->data_block_quadlets = s->pcm_channels + midi_channels; + s->midi_ports = midi_ports; + + s->syt_interval = amdtp_syt_intervals[sfc]; + + /* default buffering in the device */ + s->transfer_delay = TRANSFER_DELAY_TICKS - TICKS_PER_CYCLE; + if (s->flags & CIP_BLOCKING) + /* additional buffering needed to adjust for no-data packets */ + s->transfer_delay += TICKS_PER_SECOND * s->syt_interval / rate; + + /* init the position map for PCM and MIDI channels */ + for (i = 0; i < pcm_channels; i++) + s->pcm_positions[i] = i; + s->midi_position = s->pcm_channels; + + /* + * We do not know the actual MIDI FIFO size of most devices. Just + * assume two bytes, i.e., one byte can be received over the bus while + * the previous one is transmitted over MIDI. + * (The value here is adjusted for midi_ratelimit_per_packet().) + */ + s->midi_fifo_limit = rate - MIDI_BYTES_PER_SECOND * s->syt_interval + 1; +} +EXPORT_SYMBOL(amdtp_stream_set_parameters); + +/** + * amdtp_stream_get_max_payload - get the stream's packet size + * @s: the AMDTP stream + * + * This function must not be called before the stream has been configured + * with amdtp_stream_set_parameters(). + */ +unsigned int amdtp_stream_get_max_payload(struct amdtp_stream *s) +{ + return 8 + s->syt_interval * s->data_block_quadlets * 4; +} +EXPORT_SYMBOL(amdtp_stream_get_max_payload); + +static void amdtp_write_s16(struct amdtp_stream *s, + struct snd_pcm_substream *pcm, + __be32 *buffer, unsigned int frames); +static void amdtp_write_s32(struct amdtp_stream *s, + struct snd_pcm_substream *pcm, + __be32 *buffer, unsigned int frames); +static void amdtp_read_s32(struct amdtp_stream *s, + struct snd_pcm_substream *pcm, + __be32 *buffer, unsigned int frames); + +/** + * amdtp_stream_set_pcm_format - set the PCM format + * @s: the AMDTP stream to configure + * @format: the format of the ALSA PCM device + * + * The sample format must be set after the other parameters (rate/PCM channels/ + * MIDI) and before the stream is started, and must not be changed while the + * stream is running. + */ +void amdtp_stream_set_pcm_format(struct amdtp_stream *s, + snd_pcm_format_t format) +{ + if (WARN_ON(amdtp_stream_pcm_running(s))) + return; + + switch (format) { + default: + WARN_ON(1); + /* fall through */ + case SNDRV_PCM_FORMAT_S16: + if (s->direction == AMDTP_OUT_STREAM) { + s->transfer_samples = amdtp_write_s16; + break; + } + WARN_ON(1); + /* fall through */ + case SNDRV_PCM_FORMAT_S32: + if (s->direction == AMDTP_OUT_STREAM) + s->transfer_samples = amdtp_write_s32; + else + s->transfer_samples = amdtp_read_s32; + break; + } +} +EXPORT_SYMBOL(amdtp_stream_set_pcm_format); + +/** + * amdtp_stream_pcm_prepare - prepare PCM device for running + * @s: the AMDTP stream + * + * This function should be called from the PCM device's .prepare callback. + */ +void amdtp_stream_pcm_prepare(struct amdtp_stream *s) +{ + tasklet_kill(&s->period_tasklet); + s->pcm_buffer_pointer = 0; + s->pcm_period_pointer = 0; + s->pointer_flush = true; +} +EXPORT_SYMBOL(amdtp_stream_pcm_prepare); + +static unsigned int calculate_data_blocks(struct amdtp_stream *s) +{ + unsigned int phase, data_blocks; + + if (s->flags & CIP_BLOCKING) + data_blocks = s->syt_interval; + else if (!cip_sfc_is_base_44100(s->sfc)) { + /* Sample_rate / 8000 is an integer, and precomputed. */ + data_blocks = s->data_block_state; + } else { + phase = s->data_block_state; + + /* + * This calculates the number of data blocks per packet so that + * 1) the overall rate is correct and exactly synchronized to + * the bus clock, and + * 2) packets with a rounded-up number of blocks occur as early + * as possible in the sequence (to prevent underruns of the + * device's buffer). + */ + if (s->sfc == CIP_SFC_44100) + /* 6 6 5 6 5 6 5 ... */ + data_blocks = 5 + ((phase & 1) ^ + (phase == 0 || phase >= 40)); + else + /* 12 11 11 11 11 ... or 23 22 22 22 22 ... */ + data_blocks = 11 * (s->sfc >> 1) + (phase == 0); + if (++phase >= (80 >> (s->sfc >> 1))) + phase = 0; + s->data_block_state = phase; + } + + return data_blocks; +} + +static unsigned int calculate_syt(struct amdtp_stream *s, + unsigned int cycle) +{ + unsigned int syt_offset, phase, index, syt; + + if (s->last_syt_offset < TICKS_PER_CYCLE) { + if (!cip_sfc_is_base_44100(s->sfc)) + syt_offset = s->last_syt_offset + s->syt_offset_state; + else { + /* + * The time, in ticks, of the n'th SYT_INTERVAL sample is: + * n * SYT_INTERVAL * 24576000 / sample_rate + * Modulo TICKS_PER_CYCLE, the difference between successive + * elements is about 1386.23. Rounding the results of this + * formula to the SYT precision results in a sequence of + * differences that begins with: + * 1386 1386 1387 1386 1386 1386 1387 1386 1386 1386 1387 ... + * This code generates _exactly_ the same sequence. + */ + phase = s->syt_offset_state; + index = phase % 13; + syt_offset = s->last_syt_offset; + syt_offset += 1386 + ((index && !(index & 3)) || + phase == 146); + if (++phase >= 147) + phase = 0; + s->syt_offset_state = phase; + } + } else + syt_offset = s->last_syt_offset - TICKS_PER_CYCLE; + s->last_syt_offset = syt_offset; + + if (syt_offset < TICKS_PER_CYCLE) { + syt_offset += s->transfer_delay; + syt = (cycle + syt_offset / TICKS_PER_CYCLE) << 12; + syt += syt_offset % TICKS_PER_CYCLE; + + return syt & CIP_SYT_MASK; + } else { + return CIP_SYT_NO_INFO; + } +} + +static void amdtp_write_s32(struct amdtp_stream *s, + struct snd_pcm_substream *pcm, + __be32 *buffer, unsigned int frames) +{ + struct snd_pcm_runtime *runtime = pcm->runtime; + unsigned int channels, remaining_frames, i, c; + const u32 *src; + + channels = s->pcm_channels; + src = (void *)runtime->dma_area + + frames_to_bytes(runtime, s->pcm_buffer_pointer); + remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer; + + for (i = 0; i < frames; ++i) { + for (c = 0; c < channels; ++c) { + buffer[s->pcm_positions[c]] = + cpu_to_be32((*src >> 8) | 0x40000000); + src++; + } + buffer += s->data_block_quadlets; + if (--remaining_frames == 0) + src = (void *)runtime->dma_area; + } +} + +static void amdtp_write_s16(struct amdtp_stream *s, + struct snd_pcm_substream *pcm, + __be32 *buffer, unsigned int frames) +{ + struct snd_pcm_runtime *runtime = pcm->runtime; + unsigned int channels, remaining_frames, i, c; + const u16 *src; + + channels = s->pcm_channels; + src = (void *)runtime->dma_area + + frames_to_bytes(runtime, s->pcm_buffer_pointer); + remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer; + + for (i = 0; i < frames; ++i) { + for (c = 0; c < channels; ++c) { + buffer[s->pcm_positions[c]] = + cpu_to_be32((*src << 8) | 0x42000000); + src++; + } + buffer += s->data_block_quadlets; + if (--remaining_frames == 0) + src = (void *)runtime->dma_area; + } +} + +static void amdtp_read_s32(struct amdtp_stream *s, + struct snd_pcm_substream *pcm, + __be32 *buffer, unsigned int frames) +{ + struct snd_pcm_runtime *runtime = pcm->runtime; + unsigned int channels, remaining_frames, i, c; + u32 *dst; + + channels = s->pcm_channels; + dst = (void *)runtime->dma_area + + frames_to_bytes(runtime, s->pcm_buffer_pointer); + remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer; + + for (i = 0; i < frames; ++i) { + for (c = 0; c < channels; ++c) { + *dst = be32_to_cpu(buffer[s->pcm_positions[c]]) << 8; + dst++; + } + buffer += s->data_block_quadlets; + if (--remaining_frames == 0) + dst = (void *)runtime->dma_area; + } +} + +static void amdtp_fill_pcm_silence(struct amdtp_stream *s, + __be32 *buffer, unsigned int frames) +{ + unsigned int i, c; + + for (i = 0; i < frames; ++i) { + for (c = 0; c < s->pcm_channels; ++c) + buffer[s->pcm_positions[c]] = cpu_to_be32(0x40000000); + buffer += s->data_block_quadlets; + } +} + +/* + * To avoid sending MIDI bytes at too high a rate, assume that the receiving + * device has a FIFO, and track how much it is filled. This values increases + * by one whenever we send one byte in a packet, but the FIFO empties at + * a constant rate independent of our packet rate. One packet has syt_interval + * samples, so the number of bytes that empty out of the FIFO, per packet(!), + * is MIDI_BYTES_PER_SECOND * syt_interval / sample_rate. To avoid storing + * fractional values, the values in midi_fifo_used[] are measured in bytes + * multiplied by the sample rate. + */ +static bool midi_ratelimit_per_packet(struct amdtp_stream *s, unsigned int port) +{ + int used; + + used = s->midi_fifo_used[port]; + if (used == 0) /* common shortcut */ + return true; + + used -= MIDI_BYTES_PER_SECOND * s->syt_interval; + used = max(used, 0); + s->midi_fifo_used[port] = used; + + return used < s->midi_fifo_limit; +} + +static void midi_rate_use_one_byte(struct amdtp_stream *s, unsigned int port) +{ + s->midi_fifo_used[port] += amdtp_rate_table[s->sfc]; +} + +static void amdtp_fill_midi(struct amdtp_stream *s, + __be32 *buffer, unsigned int frames) +{ + unsigned int f, port; + u8 *b; + + for (f = 0; f < frames; f++) { + b = (u8 *)&buffer[s->midi_position]; + + port = (s->data_block_counter + f) % 8; + if (f < MAX_MIDI_RX_BLOCKS && + midi_ratelimit_per_packet(s, port) && + s->midi[port] != NULL && + snd_rawmidi_transmit(s->midi[port], &b[1], 1) == 1) { + midi_rate_use_one_byte(s, port); + b[0] = 0x81; + } else { + b[0] = 0x80; + b[1] = 0; + } + b[2] = 0; + b[3] = 0; + + buffer += s->data_block_quadlets; + } +} + +static void amdtp_pull_midi(struct amdtp_stream *s, + __be32 *buffer, unsigned int frames) +{ + unsigned int f, port; + int len; + u8 *b; + + for (f = 0; f < frames; f++) { + port = (s->data_block_counter + f) % 8; + b = (u8 *)&buffer[s->midi_position]; + + len = b[0] - 0x80; + if ((1 <= len) && (len <= 3) && (s->midi[port])) + snd_rawmidi_receive(s->midi[port], b + 1, len); + + buffer += s->data_block_quadlets; + } +} + +static void update_pcm_pointers(struct amdtp_stream *s, + struct snd_pcm_substream *pcm, + unsigned int frames) +{ + unsigned int ptr; + + /* + * In IEC 61883-6, one data block represents one event. In ALSA, one + * event equals to one PCM frame. But Dice has a quirk to transfer + * two PCM frames in one data block. + */ + if (s->double_pcm_frames) + frames *= 2; + + ptr = s->pcm_buffer_pointer + frames; + if (ptr >= pcm->runtime->buffer_size) + ptr -= pcm->runtime->buffer_size; + ACCESS_ONCE(s->pcm_buffer_pointer) = ptr; + + s->pcm_period_pointer += frames; + if (s->pcm_period_pointer >= pcm->runtime->period_size) { + s->pcm_period_pointer -= pcm->runtime->period_size; + s->pointer_flush = false; + tasklet_hi_schedule(&s->period_tasklet); + } +} + +static void pcm_period_tasklet(unsigned long data) +{ + struct amdtp_stream *s = (void *)data; + struct snd_pcm_substream *pcm = ACCESS_ONCE(s->pcm); + + if (pcm) + snd_pcm_period_elapsed(pcm); +} + +static int queue_packet(struct amdtp_stream *s, + unsigned int header_length, + unsigned int payload_length, bool skip) +{ + struct fw_iso_packet p = {0}; + int err = 0; + + if (IS_ERR(s->context)) + goto end; + + p.interrupt = IS_ALIGNED(s->packet_index + 1, INTERRUPT_INTERVAL); + p.tag = TAG_CIP; + p.header_length = header_length; + p.payload_length = (!skip) ? payload_length : 0; + p.skip = skip; + err = fw_iso_context_queue(s->context, &p, &s->buffer.iso_buffer, + s->buffer.packets[s->packet_index].offset); + if (err < 0) { + dev_err(&s->unit->device, "queueing error: %d\n", err); + goto end; + } + + if (++s->packet_index >= QUEUE_LENGTH) + s->packet_index = 0; +end: + return err; +} + +static inline int queue_out_packet(struct amdtp_stream *s, + unsigned int payload_length, bool skip) +{ + return queue_packet(s, OUT_PACKET_HEADER_SIZE, + payload_length, skip); +} + +static inline int queue_in_packet(struct amdtp_stream *s) +{ + return queue_packet(s, IN_PACKET_HEADER_SIZE, + amdtp_stream_get_max_payload(s), false); +} + +static void handle_out_packet(struct amdtp_stream *s, unsigned int syt) +{ + __be32 *buffer; + unsigned int data_blocks, payload_length; + struct snd_pcm_substream *pcm; + + if (s->packet_index < 0) + return; + + /* this module generate empty packet for 'no data' */ + if (!(s->flags & CIP_BLOCKING) || (syt != CIP_SYT_NO_INFO)) + data_blocks = calculate_data_blocks(s); + else + data_blocks = 0; + + buffer = s->buffer.packets[s->packet_index].buffer; + buffer[0] = cpu_to_be32(ACCESS_ONCE(s->source_node_id_field) | + (s->data_block_quadlets << AMDTP_DBS_SHIFT) | + s->data_block_counter); + buffer[1] = cpu_to_be32(CIP_EOH | CIP_FMT_AM | AMDTP_FDF_AM824 | + (s->sfc << CIP_FDF_SFC_SHIFT) | syt); + buffer += 2; + + pcm = ACCESS_ONCE(s->pcm); + if (pcm) + s->transfer_samples(s, pcm, buffer, data_blocks); + else + amdtp_fill_pcm_silence(s, buffer, data_blocks); + if (s->midi_ports) + amdtp_fill_midi(s, buffer, data_blocks); + + s->data_block_counter = (s->data_block_counter + data_blocks) & 0xff; + + payload_length = 8 + data_blocks * 4 * s->data_block_quadlets; + if (queue_out_packet(s, payload_length, false) < 0) { + s->packet_index = -1; + amdtp_stream_pcm_abort(s); + return; + } + + if (pcm) + update_pcm_pointers(s, pcm, data_blocks); +} + +static void handle_in_packet(struct amdtp_stream *s, + unsigned int payload_quadlets, + __be32 *buffer) +{ + u32 cip_header[2]; + unsigned int data_blocks, data_block_quadlets, data_block_counter, + dbc_interval; + struct snd_pcm_substream *pcm = NULL; + bool lost; + + cip_header[0] = be32_to_cpu(buffer[0]); + cip_header[1] = be32_to_cpu(buffer[1]); + + /* + * This module supports 'Two-quadlet CIP header with SYT field'. + * For convenience, also check FMT field is AM824 or not. + */ + if (((cip_header[0] & CIP_EOH_MASK) == CIP_EOH) || + ((cip_header[1] & CIP_EOH_MASK) != CIP_EOH) || + ((cip_header[1] & CIP_FMT_MASK) != CIP_FMT_AM)) { + dev_info_ratelimited(&s->unit->device, + "Invalid CIP header for AMDTP: %08X:%08X\n", + cip_header[0], cip_header[1]); + goto end; + } + + /* Calculate data blocks */ + if (payload_quadlets < 3 || + ((cip_header[1] & CIP_FDF_MASK) == + (AMDTP_FDF_NO_DATA << CIP_FDF_SFC_SHIFT))) { + data_blocks = 0; + } else { + data_block_quadlets = + (cip_header[0] & AMDTP_DBS_MASK) >> AMDTP_DBS_SHIFT; + /* avoid division by zero */ + if (data_block_quadlets == 0) { + dev_info_ratelimited(&s->unit->device, + "Detect invalid value in dbs field: %08X\n", + cip_header[0]); + goto err; + } + if (s->flags & CIP_WRONG_DBS) + data_block_quadlets = s->data_block_quadlets; + + data_blocks = (payload_quadlets - 2) / data_block_quadlets; + } + + /* Check data block counter continuity */ + data_block_counter = cip_header[0] & AMDTP_DBC_MASK; + if (data_blocks == 0 && (s->flags & CIP_EMPTY_HAS_WRONG_DBC) && + s->data_block_counter != UINT_MAX) + data_block_counter = s->data_block_counter; + + if (((s->flags & CIP_SKIP_DBC_ZERO_CHECK) && data_block_counter == 0) || + (s->data_block_counter == UINT_MAX)) { + lost = false; + } else if (!(s->flags & CIP_DBC_IS_END_EVENT)) { + lost = data_block_counter != s->data_block_counter; + } else { + if ((data_blocks > 0) && (s->tx_dbc_interval > 0)) + dbc_interval = s->tx_dbc_interval; + else + dbc_interval = data_blocks; + + lost = data_block_counter != + ((s->data_block_counter + dbc_interval) & 0xff); + } + + if (lost) { + dev_info(&s->unit->device, + "Detect discontinuity of CIP: %02X %02X\n", + s->data_block_counter, data_block_counter); + goto err; + } + + if (data_blocks > 0) { + buffer += 2; + + pcm = ACCESS_ONCE(s->pcm); + if (pcm) + s->transfer_samples(s, pcm, buffer, data_blocks); + + if (s->midi_ports) + amdtp_pull_midi(s, buffer, data_blocks); + } + + if (s->flags & CIP_DBC_IS_END_EVENT) + s->data_block_counter = data_block_counter; + else + s->data_block_counter = + (data_block_counter + data_blocks) & 0xff; +end: + if (queue_in_packet(s) < 0) + goto err; + + if (pcm) + update_pcm_pointers(s, pcm, data_blocks); + + return; +err: + s->packet_index = -1; + amdtp_stream_pcm_abort(s); +} + +static void out_stream_callback(struct fw_iso_context *context, u32 cycle, + size_t header_length, void *header, + void *private_data) +{ + struct amdtp_stream *s = private_data; + unsigned int i, syt, packets = header_length / 4; + + /* + * Compute the cycle of the last queued packet. + * (We need only the four lowest bits for the SYT, so we can ignore + * that bits 0-11 must wrap around at 3072.) + */ + cycle += QUEUE_LENGTH - packets; + + for (i = 0; i < packets; ++i) { + syt = calculate_syt(s, ++cycle); + handle_out_packet(s, syt); + } + fw_iso_context_queue_flush(s->context); +} + +static void in_stream_callback(struct fw_iso_context *context, u32 cycle, + size_t header_length, void *header, + void *private_data) +{ + struct amdtp_stream *s = private_data; + unsigned int p, syt, packets, payload_quadlets; + __be32 *buffer, *headers = header; + + /* The number of packets in buffer */ + packets = header_length / IN_PACKET_HEADER_SIZE; + + for (p = 0; p < packets; p++) { + if (s->packet_index < 0) + break; + + buffer = s->buffer.packets[s->packet_index].buffer; + + /* Process sync slave stream */ + if (s->sync_slave && s->sync_slave->callbacked) { + syt = be32_to_cpu(buffer[1]) & CIP_SYT_MASK; + handle_out_packet(s->sync_slave, syt); + } + + /* The number of quadlets in this packet */ + payload_quadlets = + (be32_to_cpu(headers[p]) >> ISO_DATA_LENGTH_SHIFT) / 4; + handle_in_packet(s, payload_quadlets, buffer); + } + + /* Queueing error or detecting discontinuity */ + if (s->packet_index < 0) { + /* Abort sync slave. */ + if (s->sync_slave) { + s->sync_slave->packet_index = -1; + amdtp_stream_pcm_abort(s->sync_slave); + } + return; + } + + /* when sync to device, flush the packets for slave stream */ + if (s->sync_slave && s->sync_slave->callbacked) + fw_iso_context_queue_flush(s->sync_slave->context); + + fw_iso_context_queue_flush(s->context); +} + +/* processing is done by master callback */ +static void slave_stream_callback(struct fw_iso_context *context, u32 cycle, + size_t header_length, void *header, + void *private_data) +{ + return; +} + +/* this is executed one time */ +static void amdtp_stream_first_callback(struct fw_iso_context *context, + u32 cycle, size_t header_length, + void *header, void *private_data) +{ + struct amdtp_stream *s = private_data; + + /* + * For in-stream, first packet has come. + * For out-stream, prepared to transmit first packet + */ + s->callbacked = true; + wake_up(&s->callback_wait); + + if (s->direction == AMDTP_IN_STREAM) + context->callback.sc = in_stream_callback; + else if ((s->flags & CIP_BLOCKING) && (s->flags & CIP_SYNC_TO_DEVICE)) + context->callback.sc = slave_stream_callback; + else + context->callback.sc = out_stream_callback; + + context->callback.sc(context, cycle, header_length, header, s); +} + +/** + * amdtp_stream_start - start transferring packets + * @s: the AMDTP stream to start + * @channel: the isochronous channel on the bus + * @speed: firewire speed code + * + * The stream cannot be started until it has been configured with + * amdtp_stream_set_parameters() and it must be started before any PCM or MIDI + * device can be started. + */ +int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed) +{ + static const struct { + unsigned int data_block; + unsigned int syt_offset; + } initial_state[] = { + [CIP_SFC_32000] = { 4, 3072 }, + [CIP_SFC_48000] = { 6, 1024 }, + [CIP_SFC_96000] = { 12, 1024 }, + [CIP_SFC_192000] = { 24, 1024 }, + [CIP_SFC_44100] = { 0, 67 }, + [CIP_SFC_88200] = { 0, 67 }, + [CIP_SFC_176400] = { 0, 67 }, + }; + unsigned int header_size; + enum dma_data_direction dir; + int type, tag, err; + + mutex_lock(&s->mutex); + + if (WARN_ON(amdtp_stream_running(s) || + (s->data_block_quadlets < 1))) { + err = -EBADFD; + goto err_unlock; + } + + if (s->direction == AMDTP_IN_STREAM && + s->flags & CIP_SKIP_INIT_DBC_CHECK) + s->data_block_counter = UINT_MAX; + else + s->data_block_counter = 0; + s->data_block_state = initial_state[s->sfc].data_block; + s->syt_offset_state = initial_state[s->sfc].syt_offset; + s->last_syt_offset = TICKS_PER_CYCLE; + + /* initialize packet buffer */ + if (s->direction == AMDTP_IN_STREAM) { + dir = DMA_FROM_DEVICE; + type = FW_ISO_CONTEXT_RECEIVE; + header_size = IN_PACKET_HEADER_SIZE; + } else { + dir = DMA_TO_DEVICE; + type = FW_ISO_CONTEXT_TRANSMIT; + header_size = OUT_PACKET_HEADER_SIZE; + } + err = iso_packets_buffer_init(&s->buffer, s->unit, QUEUE_LENGTH, + amdtp_stream_get_max_payload(s), dir); + if (err < 0) + goto err_unlock; + + s->context = fw_iso_context_create(fw_parent_device(s->unit)->card, + type, channel, speed, header_size, + amdtp_stream_first_callback, s); + if (IS_ERR(s->context)) { + err = PTR_ERR(s->context); + if (err == -EBUSY) + dev_err(&s->unit->device, + "no free stream on this controller\n"); + goto err_buffer; + } + + amdtp_stream_update(s); + + s->packet_index = 0; + do { + if (s->direction == AMDTP_IN_STREAM) + err = queue_in_packet(s); + else + err = queue_out_packet(s, 0, true); + if (err < 0) + goto err_context; + } while (s->packet_index > 0); + + /* NOTE: TAG1 matches CIP. This just affects in stream. */ + tag = FW_ISO_CONTEXT_MATCH_TAG1; + if (s->flags & CIP_EMPTY_WITH_TAG0) + tag |= FW_ISO_CONTEXT_MATCH_TAG0; + + s->callbacked = false; + err = fw_iso_context_start(s->context, -1, 0, tag); + if (err < 0) + goto err_context; + + mutex_unlock(&s->mutex); + + return 0; + +err_context: + fw_iso_context_destroy(s->context); + s->context = ERR_PTR(-1); +err_buffer: + iso_packets_buffer_destroy(&s->buffer, s->unit); +err_unlock: + mutex_unlock(&s->mutex); + + return err; +} +EXPORT_SYMBOL(amdtp_stream_start); + +/** + * amdtp_stream_pcm_pointer - get the PCM buffer position + * @s: the AMDTP stream that transports the PCM data + * + * Returns the current buffer position, in frames. + */ +unsigned long amdtp_stream_pcm_pointer(struct amdtp_stream *s) +{ + /* this optimization is allowed to be racy */ + if (s->pointer_flush && amdtp_stream_running(s)) + fw_iso_context_flush_completions(s->context); + else + s->pointer_flush = true; + + return ACCESS_ONCE(s->pcm_buffer_pointer); +} +EXPORT_SYMBOL(amdtp_stream_pcm_pointer); + +/** + * amdtp_stream_update - update the stream after a bus reset + * @s: the AMDTP stream + */ +void amdtp_stream_update(struct amdtp_stream *s) +{ + ACCESS_ONCE(s->source_node_id_field) = + (fw_parent_device(s->unit)->card->node_id & 0x3f) << 24; +} +EXPORT_SYMBOL(amdtp_stream_update); + +/** + * amdtp_stream_stop - stop sending packets + * @s: the AMDTP stream to stop + * + * All PCM and MIDI devices of the stream must be stopped before the stream + * itself can be stopped. + */ +void amdtp_stream_stop(struct amdtp_stream *s) +{ + mutex_lock(&s->mutex); + + if (!amdtp_stream_running(s)) { + mutex_unlock(&s->mutex); + return; + } + + tasklet_kill(&s->period_tasklet); + fw_iso_context_stop(s->context); + fw_iso_context_destroy(s->context); + s->context = ERR_PTR(-1); + iso_packets_buffer_destroy(&s->buffer, s->unit); + + s->callbacked = false; + + mutex_unlock(&s->mutex); +} +EXPORT_SYMBOL(amdtp_stream_stop); + +/** + * amdtp_stream_pcm_abort - abort the running PCM device + * @s: the AMDTP stream about to be stopped + * + * If the isochronous stream needs to be stopped asynchronously, call this + * function first to stop the PCM device. + */ +void amdtp_stream_pcm_abort(struct amdtp_stream *s) +{ + struct snd_pcm_substream *pcm; + + pcm = ACCESS_ONCE(s->pcm); + if (pcm) + snd_pcm_stop_xrun(pcm); +} +EXPORT_SYMBOL(amdtp_stream_pcm_abort); diff --git a/kernel/sound/firewire/amdtp.h b/kernel/sound/firewire/amdtp.h new file mode 100644 index 000000000..8a03a91e7 --- /dev/null +++ b/kernel/sound/firewire/amdtp.h @@ -0,0 +1,292 @@ +#ifndef SOUND_FIREWIRE_AMDTP_H_INCLUDED +#define SOUND_FIREWIRE_AMDTP_H_INCLUDED + +#include <linux/err.h> +#include <linux/interrupt.h> +#include <linux/mutex.h> +#include <sound/asound.h> +#include "packets-buffer.h" + +/** + * enum cip_flags - describes details of the streaming protocol + * @CIP_NONBLOCKING: In non-blocking mode, each packet contains + * sample_rate/8000 samples, with rounding up or down to adjust + * for clock skew and left-over fractional samples. This should + * be used if supported by the device. + * @CIP_BLOCKING: In blocking mode, each packet contains either zero or + * SYT_INTERVAL samples, with these two types alternating so that + * the overall sample rate comes out right. + * @CIP_SYNC_TO_DEVICE: In sync to device mode, time stamp in out packets is + * generated by in packets. Defaultly this driver generates timestamp. + * @CIP_EMPTY_WITH_TAG0: Only for in-stream. Empty in-packets have TAG0. + * @CIP_DBC_IS_END_EVENT: Only for in-stream. The value of dbc in an in-packet + * corresponds to the end of event in the packet. Out of IEC 61883. + * @CIP_WRONG_DBS: Only for in-stream. The value of dbs is wrong in in-packets. + * The value of data_block_quadlets is used instead of reported value. + * @CIP_SKIP_DBC_ZERO_CHECK: Only for in-stream. Packets with zero in dbc is + * skipped for detecting discontinuity. + * @CIP_SKIP_INIT_DBC_CHECK: Only for in-stream. The value of dbc in first + * packet is not continuous from an initial value. + * @CIP_EMPTY_HAS_WRONG_DBC: Only for in-stream. The value of dbc in empty + * packet is wrong but the others are correct. + */ +enum cip_flags { + CIP_NONBLOCKING = 0x00, + CIP_BLOCKING = 0x01, + CIP_SYNC_TO_DEVICE = 0x02, + CIP_EMPTY_WITH_TAG0 = 0x04, + CIP_DBC_IS_END_EVENT = 0x08, + CIP_WRONG_DBS = 0x10, + CIP_SKIP_DBC_ZERO_CHECK = 0x20, + CIP_SKIP_INIT_DBC_CHECK = 0x40, + CIP_EMPTY_HAS_WRONG_DBC = 0x80, +}; + +/** + * enum cip_sfc - supported Sampling Frequency Codes (SFCs) + * @CIP_SFC_32000: 32,000 data blocks + * @CIP_SFC_44100: 44,100 data blocks + * @CIP_SFC_48000: 48,000 data blocks + * @CIP_SFC_88200: 88,200 data blocks + * @CIP_SFC_96000: 96,000 data blocks + * @CIP_SFC_176400: 176,400 data blocks + * @CIP_SFC_192000: 192,000 data blocks + * @CIP_SFC_COUNT: the number of supported SFCs + * + * These values are used to show nominal Sampling Frequency Code in + * Format Dependent Field (FDF) of AMDTP packet header. In IEC 61883-6:2002, + * this code means the number of events per second. Actually the code + * represents the number of data blocks transferred per second in an AMDTP + * stream. + * + * In IEC 61883-6:2005, some extensions were added to support more types of + * data such as 'One Bit LInear Audio', therefore the meaning of SFC became + * different depending on the types. + * + * Currently our implementation is compatible with IEC 61883-6:2002. + */ +enum cip_sfc { + CIP_SFC_32000 = 0, + CIP_SFC_44100 = 1, + CIP_SFC_48000 = 2, + CIP_SFC_88200 = 3, + CIP_SFC_96000 = 4, + CIP_SFC_176400 = 5, + CIP_SFC_192000 = 6, + CIP_SFC_COUNT +}; + +#define AMDTP_IN_PCM_FORMAT_BITS SNDRV_PCM_FMTBIT_S32 + +#define AMDTP_OUT_PCM_FORMAT_BITS (SNDRV_PCM_FMTBIT_S16 | \ + SNDRV_PCM_FMTBIT_S32) + + +/* + * This module supports maximum 64 PCM channels for one PCM stream + * This is for our convenience. + */ +#define AMDTP_MAX_CHANNELS_FOR_PCM 64 + +/* + * AMDTP packet can include channels for MIDI conformant data. + * Each MIDI conformant data channel includes 8 MPX-MIDI data stream. + * Each MPX-MIDI data stream includes one data stream from/to MIDI ports. + * + * This module supports maximum 1 MIDI conformant data channels. + * Then this AMDTP packets can transfer maximum 8 MIDI data streams. + */ +#define AMDTP_MAX_CHANNELS_FOR_MIDI 1 + +struct fw_unit; +struct fw_iso_context; +struct snd_pcm_substream; +struct snd_pcm_runtime; +struct snd_rawmidi_substream; + +enum amdtp_stream_direction { + AMDTP_OUT_STREAM = 0, + AMDTP_IN_STREAM +}; + +struct amdtp_stream { + struct fw_unit *unit; + enum cip_flags flags; + enum amdtp_stream_direction direction; + struct fw_iso_context *context; + struct mutex mutex; + + enum cip_sfc sfc; + unsigned int data_block_quadlets; + unsigned int pcm_channels; + unsigned int midi_ports; + void (*transfer_samples)(struct amdtp_stream *s, + struct snd_pcm_substream *pcm, + __be32 *buffer, unsigned int frames); + u8 pcm_positions[AMDTP_MAX_CHANNELS_FOR_PCM]; + u8 midi_position; + + unsigned int syt_interval; + unsigned int transfer_delay; + unsigned int source_node_id_field; + struct iso_packets_buffer buffer; + + struct snd_pcm_substream *pcm; + struct tasklet_struct period_tasklet; + + int packet_index; + unsigned int data_block_counter; + + unsigned int data_block_state; + + unsigned int last_syt_offset; + unsigned int syt_offset_state; + + unsigned int pcm_buffer_pointer; + unsigned int pcm_period_pointer; + bool pointer_flush; + bool double_pcm_frames; + + struct snd_rawmidi_substream *midi[AMDTP_MAX_CHANNELS_FOR_MIDI * 8]; + int midi_fifo_limit; + int midi_fifo_used[AMDTP_MAX_CHANNELS_FOR_MIDI * 8]; + + /* quirk: fixed interval of dbc between previos/current packets. */ + unsigned int tx_dbc_interval; + + bool callbacked; + wait_queue_head_t callback_wait; + struct amdtp_stream *sync_slave; +}; + +int amdtp_stream_init(struct amdtp_stream *s, struct fw_unit *unit, + enum amdtp_stream_direction dir, + enum cip_flags flags); +void amdtp_stream_destroy(struct amdtp_stream *s); + +void amdtp_stream_set_parameters(struct amdtp_stream *s, + unsigned int rate, + unsigned int pcm_channels, + unsigned int midi_ports); +unsigned int amdtp_stream_get_max_payload(struct amdtp_stream *s); + +int amdtp_stream_start(struct amdtp_stream *s, int channel, int speed); +void amdtp_stream_update(struct amdtp_stream *s); +void amdtp_stream_stop(struct amdtp_stream *s); + +int amdtp_stream_add_pcm_hw_constraints(struct amdtp_stream *s, + struct snd_pcm_runtime *runtime); +void amdtp_stream_set_pcm_format(struct amdtp_stream *s, + snd_pcm_format_t format); +void amdtp_stream_pcm_prepare(struct amdtp_stream *s); +unsigned long amdtp_stream_pcm_pointer(struct amdtp_stream *s); +void amdtp_stream_pcm_abort(struct amdtp_stream *s); + +extern const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT]; +extern const unsigned int amdtp_rate_table[CIP_SFC_COUNT]; + +/** + * amdtp_stream_running - check stream is running or not + * @s: the AMDTP stream + * + * If this function returns true, the stream is running. + */ +static inline bool amdtp_stream_running(struct amdtp_stream *s) +{ + return !IS_ERR(s->context); +} + +/** + * amdtp_streaming_error - check for streaming error + * @s: the AMDTP stream + * + * If this function returns true, the stream's packet queue has stopped due to + * an asynchronous error. + */ +static inline bool amdtp_streaming_error(struct amdtp_stream *s) +{ + return s->packet_index < 0; +} + +/** + * amdtp_stream_pcm_running - check PCM substream is running or not + * @s: the AMDTP stream + * + * If this function returns true, PCM substream in the AMDTP stream is running. + */ +static inline bool amdtp_stream_pcm_running(struct amdtp_stream *s) +{ + return !!s->pcm; +} + +/** + * amdtp_stream_pcm_trigger - start/stop playback from a PCM device + * @s: the AMDTP stream + * @pcm: the PCM device to be started, or %NULL to stop the current device + * + * Call this function on a running isochronous stream to enable the actual + * transmission of PCM data. This function should be called from the PCM + * device's .trigger callback. + */ +static inline void amdtp_stream_pcm_trigger(struct amdtp_stream *s, + struct snd_pcm_substream *pcm) +{ + ACCESS_ONCE(s->pcm) = pcm; +} + +/** + * amdtp_stream_midi_trigger - start/stop playback/capture with a MIDI device + * @s: the AMDTP stream + * @port: index of MIDI port + * @midi: the MIDI device to be started, or %NULL to stop the current device + * + * Call this function on a running isochronous stream to enable the actual + * transmission of MIDI data. This function should be called from the MIDI + * device's .trigger callback. + */ +static inline void amdtp_stream_midi_trigger(struct amdtp_stream *s, + unsigned int port, + struct snd_rawmidi_substream *midi) +{ + if (port < s->midi_ports) + ACCESS_ONCE(s->midi[port]) = midi; +} + +static inline bool cip_sfc_is_base_44100(enum cip_sfc sfc) +{ + return sfc & 1; +} + +static inline void amdtp_stream_set_sync(enum cip_flags sync_mode, + struct amdtp_stream *master, + struct amdtp_stream *slave) +{ + if (sync_mode == CIP_SYNC_TO_DEVICE) { + master->flags |= CIP_SYNC_TO_DEVICE; + slave->flags |= CIP_SYNC_TO_DEVICE; + master->sync_slave = slave; + } else { + master->flags &= ~CIP_SYNC_TO_DEVICE; + slave->flags &= ~CIP_SYNC_TO_DEVICE; + master->sync_slave = NULL; + } + + slave->sync_slave = NULL; +} + +/** + * amdtp_stream_wait_callback - sleep till callbacked or timeout + * @s: the AMDTP stream + * @timeout: msec till timeout + * + * If this function return false, the AMDTP stream should be stopped. + */ +static inline bool amdtp_stream_wait_callback(struct amdtp_stream *s, + unsigned int timeout) +{ + return wait_event_timeout(s->callback_wait, + s->callbacked == true, + msecs_to_jiffies(timeout)) > 0; +} + +#endif diff --git a/kernel/sound/firewire/bebob/Makefile b/kernel/sound/firewire/bebob/Makefile new file mode 100644 index 000000000..6cf470c80 --- /dev/null +++ b/kernel/sound/firewire/bebob/Makefile @@ -0,0 +1,4 @@ +snd-bebob-objs := bebob_command.o bebob_stream.o bebob_proc.o bebob_midi.o \ + bebob_pcm.o bebob_hwdep.o bebob_terratec.o bebob_yamaha.o \ + bebob_focusrite.o bebob_maudio.o bebob.o +obj-m += snd-bebob.o diff --git a/kernel/sound/firewire/bebob/bebob.c b/kernel/sound/firewire/bebob/bebob.c new file mode 100644 index 000000000..611b7dae7 --- /dev/null +++ b/kernel/sound/firewire/bebob/bebob.c @@ -0,0 +1,483 @@ +/* + * bebob.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +/* + * BeBoB is 'BridgeCo enhanced Breakout Box'. This is installed to firewire + * devices with DM1000/DM1100/DM1500 chipset. It gives common way for host + * system to handle BeBoB based devices. + */ + +#include "bebob.h" + +MODULE_DESCRIPTION("BridgeCo BeBoB driver"); +MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>"); +MODULE_LICENSE("GPL v2"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "card index"); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string"); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "enable BeBoB sound card"); + +static DEFINE_MUTEX(devices_mutex); +static DECLARE_BITMAP(devices_used, SNDRV_CARDS); + +/* Offsets from information register. */ +#define INFO_OFFSET_GUID 0x10 +#define INFO_OFFSET_HW_MODEL_ID 0x18 +#define INFO_OFFSET_HW_MODEL_REVISION 0x1c + +#define VEN_EDIROL 0x000040ab +#define VEN_PRESONUS 0x00000a92 +#define VEN_BRIDGECO 0x000007f5 +#define VEN_MACKIE 0x0000000f +#define VEN_STANTON 0x00001260 +#define VEN_TASCAM 0x0000022e +#define VEN_BEHRINGER 0x00001564 +#define VEN_APOGEE 0x000003db +#define VEN_ESI 0x00000f1b +#define VEN_ACOUSTIC 0x00000002 +#define VEN_CME 0x0000000a +#define VEN_PHONIC 0x00001496 +#define VEN_LYNX 0x000019e5 +#define VEN_ICON 0x00001a9e +#define VEN_PRISMSOUND 0x00001198 +#define VEN_TERRATEC 0x00000aac +#define VEN_YAMAHA 0x0000a0de +#define VEN_FOCUSRITE 0x0000130e +#define VEN_MAUDIO1 0x00000d6c +#define VEN_MAUDIO2 0x000007f5 + +#define MODEL_FOCUSRITE_SAFFIRE_BOTH 0x00000000 +#define MODEL_MAUDIO_AUDIOPHILE_BOTH 0x00010060 +#define MODEL_MAUDIO_FW1814 0x00010071 +#define MODEL_MAUDIO_PROJECTMIX 0x00010091 + +static int +name_device(struct snd_bebob *bebob, unsigned int vendor_id) +{ + struct fw_device *fw_dev = fw_parent_device(bebob->unit); + char vendor[24] = {0}; + char model[32] = {0}; + u32 hw_id; + u32 data[2] = {0}; + u32 revision; + int err; + + /* get vendor name from root directory */ + err = fw_csr_string(fw_dev->config_rom + 5, CSR_VENDOR, + vendor, sizeof(vendor)); + if (err < 0) + goto end; + + /* get model name from unit directory */ + err = fw_csr_string(bebob->unit->directory, CSR_MODEL, + model, sizeof(model)); + if (err < 0) + goto end; + + /* get hardware id */ + err = snd_bebob_read_quad(bebob->unit, INFO_OFFSET_HW_MODEL_ID, + &hw_id); + if (err < 0) + goto end; + + /* get hardware revision */ + err = snd_bebob_read_quad(bebob->unit, INFO_OFFSET_HW_MODEL_REVISION, + &revision); + if (err < 0) + goto end; + + /* get GUID */ + err = snd_bebob_read_block(bebob->unit, INFO_OFFSET_GUID, + data, sizeof(data)); + if (err < 0) + goto end; + + strcpy(bebob->card->driver, "BeBoB"); + strcpy(bebob->card->shortname, model); + strcpy(bebob->card->mixername, model); + snprintf(bebob->card->longname, sizeof(bebob->card->longname), + "%s %s (id:%d, rev:%d), GUID %08x%08x at %s, S%d", + vendor, model, hw_id, revision, + data[0], data[1], dev_name(&bebob->unit->device), + 100 << fw_dev->max_speed); +end: + return err; +} + +/* + * This module releases the FireWire unit data after all ALSA character devices + * are released by applications. This is for releasing stream data or finishing + * transactions safely. Thus at returning from .remove(), this module still keep + * references for the unit. + */ +static void +bebob_card_free(struct snd_card *card) +{ + struct snd_bebob *bebob = card->private_data; + + snd_bebob_stream_destroy_duplex(bebob); + fw_unit_put(bebob->unit); + + kfree(bebob->maudio_special_quirk); + + if (bebob->card_index >= 0) { + mutex_lock(&devices_mutex); + clear_bit(bebob->card_index, devices_used); + mutex_unlock(&devices_mutex); + } + + mutex_destroy(&bebob->mutex); +} + +static const struct snd_bebob_spec * +get_saffire_spec(struct fw_unit *unit) +{ + char name[24] = {0}; + + if (fw_csr_string(unit->directory, CSR_MODEL, name, sizeof(name)) < 0) + return NULL; + + if (strcmp(name, "SaffireLE") == 0) + return &saffire_le_spec; + else + return &saffire_spec; +} + +static bool +check_audiophile_booted(struct fw_unit *unit) +{ + char name[24] = {0}; + + if (fw_csr_string(unit->directory, CSR_MODEL, name, sizeof(name)) < 0) + return false; + + return strncmp(name, "FW Audiophile Bootloader", 15) != 0; +} + +static int +bebob_probe(struct fw_unit *unit, + const struct ieee1394_device_id *entry) +{ + struct snd_card *card; + struct snd_bebob *bebob; + const struct snd_bebob_spec *spec; + unsigned int card_index; + int err; + + mutex_lock(&devices_mutex); + + for (card_index = 0; card_index < SNDRV_CARDS; card_index++) { + if (!test_bit(card_index, devices_used) && enable[card_index]) + break; + } + if (card_index >= SNDRV_CARDS) { + err = -ENOENT; + goto end; + } + + if ((entry->vendor_id == VEN_FOCUSRITE) && + (entry->model_id == MODEL_FOCUSRITE_SAFFIRE_BOTH)) + spec = get_saffire_spec(unit); + else if ((entry->vendor_id == VEN_MAUDIO1) && + (entry->model_id == MODEL_MAUDIO_AUDIOPHILE_BOTH) && + !check_audiophile_booted(unit)) + spec = NULL; + else + spec = (const struct snd_bebob_spec *)entry->driver_data; + + if (spec == NULL) { + if ((entry->vendor_id == VEN_MAUDIO1) || + (entry->vendor_id == VEN_MAUDIO2)) + err = snd_bebob_maudio_load_firmware(unit); + else + err = -ENOSYS; + goto end; + } + + err = snd_card_new(&unit->device, index[card_index], id[card_index], + THIS_MODULE, sizeof(struct snd_bebob), &card); + if (err < 0) + goto end; + bebob = card->private_data; + bebob->card_index = card_index; + set_bit(card_index, devices_used); + card->private_free = bebob_card_free; + + bebob->card = card; + bebob->unit = fw_unit_get(unit); + bebob->spec = spec; + mutex_init(&bebob->mutex); + spin_lock_init(&bebob->lock); + init_waitqueue_head(&bebob->hwdep_wait); + + err = name_device(bebob, entry->vendor_id); + if (err < 0) + goto error; + + if ((entry->vendor_id == VEN_MAUDIO1) && + (entry->model_id == MODEL_MAUDIO_FW1814)) + err = snd_bebob_maudio_special_discover(bebob, true); + else if ((entry->vendor_id == VEN_MAUDIO1) && + (entry->model_id == MODEL_MAUDIO_PROJECTMIX)) + err = snd_bebob_maudio_special_discover(bebob, false); + else + err = snd_bebob_stream_discover(bebob); + if (err < 0) + goto error; + + snd_bebob_proc_init(bebob); + + if ((bebob->midi_input_ports > 0) || + (bebob->midi_output_ports > 0)) { + err = snd_bebob_create_midi_devices(bebob); + if (err < 0) + goto error; + } + + err = snd_bebob_create_pcm_devices(bebob); + if (err < 0) + goto error; + + err = snd_bebob_create_hwdep_device(bebob); + if (err < 0) + goto error; + + err = snd_bebob_stream_init_duplex(bebob); + if (err < 0) + goto error; + + if (!bebob->maudio_special_quirk) { + err = snd_card_register(card); + if (err < 0) { + snd_bebob_stream_destroy_duplex(bebob); + goto error; + } + } else { + /* + * This is a workaround. This bus reset seems to have an effect + * to make devices correctly handling transactions. Without + * this, the devices have gap_count mismatch. This causes much + * failure of transaction. + * + * Just after registration, user-land application receive + * signals from dbus and starts I/Os. To avoid I/Os till the + * future bus reset, registration is done in next update(). + */ + bebob->deferred_registration = true; + fw_schedule_bus_reset(fw_parent_device(bebob->unit)->card, + false, true); + } + + dev_set_drvdata(&unit->device, bebob); +end: + mutex_unlock(&devices_mutex); + return err; +error: + mutex_unlock(&devices_mutex); + snd_card_free(card); + return err; +} + +static void +bebob_update(struct fw_unit *unit) +{ + struct snd_bebob *bebob = dev_get_drvdata(&unit->device); + + if (bebob == NULL) + return; + + fcp_bus_reset(bebob->unit); + snd_bebob_stream_update_duplex(bebob); + + if (bebob->deferred_registration) { + if (snd_card_register(bebob->card) < 0) { + snd_bebob_stream_destroy_duplex(bebob); + snd_card_free(bebob->card); + } + bebob->deferred_registration = false; + } +} + +static void bebob_remove(struct fw_unit *unit) +{ + struct snd_bebob *bebob = dev_get_drvdata(&unit->device); + + if (bebob == NULL) + return; + + /* Awake bus-reset waiters. */ + if (!completion_done(&bebob->bus_reset)) + complete_all(&bebob->bus_reset); + + /* No need to wait for releasing card object in this context. */ + snd_card_free_when_closed(bebob->card); +} + +static struct snd_bebob_rate_spec normal_rate_spec = { + .get = &snd_bebob_stream_get_rate, + .set = &snd_bebob_stream_set_rate +}; +static const struct snd_bebob_spec spec_normal = { + .clock = NULL, + .rate = &normal_rate_spec, + .meter = NULL +}; + +static const struct ieee1394_device_id bebob_id_table[] = { + /* Edirol, FA-66 */ + SND_BEBOB_DEV_ENTRY(VEN_EDIROL, 0x00010049, &spec_normal), + /* Edirol, FA-101 */ + SND_BEBOB_DEV_ENTRY(VEN_EDIROL, 0x00010048, &spec_normal), + /* Presonus, FIREBOX */ + SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010000, &spec_normal), + /* PreSonus, FIREPOD/FP10 */ + SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010066, &spec_normal), + /* PreSonus, Inspire1394 */ + SND_BEBOB_DEV_ENTRY(VEN_PRESONUS, 0x00010001, &spec_normal), + /* BridgeCo, RDAudio1 */ + SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010048, &spec_normal), + /* BridgeCo, Audio5 */ + SND_BEBOB_DEV_ENTRY(VEN_BRIDGECO, 0x00010049, &spec_normal), + /* Mackie, Onyx 1220/1620/1640 (Firewire I/O Card) */ + SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010065, &spec_normal), + /* Mackie, d.2 (Firewire Option) */ + SND_BEBOB_DEV_ENTRY(VEN_MACKIE, 0x00010067, &spec_normal), + /* Stanton, ScratchAmp */ + SND_BEBOB_DEV_ENTRY(VEN_STANTON, 0x00000001, &spec_normal), + /* Tascam, IF-FW DM */ + SND_BEBOB_DEV_ENTRY(VEN_TASCAM, 0x00010067, &spec_normal), + /* Behringer, XENIX UFX 1204 */ + SND_BEBOB_DEV_ENTRY(VEN_BEHRINGER, 0x00001204, &spec_normal), + /* Behringer, XENIX UFX 1604 */ + SND_BEBOB_DEV_ENTRY(VEN_BEHRINGER, 0x00001604, &spec_normal), + /* Behringer, Digital Mixer X32 series (X-UF Card) */ + SND_BEBOB_DEV_ENTRY(VEN_BEHRINGER, 0x00000006, &spec_normal), + /* Apogee Electronics, Rosetta 200/400 (X-FireWire card) */ + /* Apogee Electronics, DA/AD/DD-16X (X-FireWire card) */ + SND_BEBOB_DEV_ENTRY(VEN_APOGEE, 0x00010048, &spec_normal), + /* Apogee Electronics, Ensemble */ + SND_BEBOB_DEV_ENTRY(VEN_APOGEE, 0x00001eee, &spec_normal), + /* ESI, Quatafire610 */ + SND_BEBOB_DEV_ENTRY(VEN_ESI, 0x00010064, &spec_normal), + /* AcousticReality, eARMasterOne */ + SND_BEBOB_DEV_ENTRY(VEN_ACOUSTIC, 0x00000002, &spec_normal), + /* CME, MatrixKFW */ + SND_BEBOB_DEV_ENTRY(VEN_CME, 0x00030000, &spec_normal), + /* Phonic, Helix Board 12 MkII */ + SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00050000, &spec_normal), + /* Phonic, Helix Board 18 MkII */ + SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00060000, &spec_normal), + /* Phonic, Helix Board 24 MkII */ + SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00070000, &spec_normal), + /* Phonic, Helix Board 12 Universal/18 Universal/24 Universal */ + SND_BEBOB_DEV_ENTRY(VEN_PHONIC, 0x00000000, &spec_normal), + /* Lynx, Aurora 8/16 (LT-FW) */ + SND_BEBOB_DEV_ENTRY(VEN_LYNX, 0x00000001, &spec_normal), + /* ICON, FireXon */ + SND_BEBOB_DEV_ENTRY(VEN_ICON, 0x00000001, &spec_normal), + /* PrismSound, Orpheus */ + SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x00010048, &spec_normal), + /* PrismSound, ADA-8XR */ + SND_BEBOB_DEV_ENTRY(VEN_PRISMSOUND, 0x0000ada8, &spec_normal), + /* TerraTec Electronic GmbH, PHASE 88 Rack FW */ + SND_BEBOB_DEV_ENTRY(VEN_TERRATEC, 0x00000003, &phase88_rack_spec), + /* TerraTec Electronic GmbH, PHASE 24 FW */ + SND_BEBOB_DEV_ENTRY(VEN_TERRATEC, 0x00000004, &phase24_series_spec), + /* TerraTec Electronic GmbH, Phase X24 FW */ + SND_BEBOB_DEV_ENTRY(VEN_TERRATEC, 0x00000007, &phase24_series_spec), + /* TerraTec Electronic GmbH, EWS MIC2/MIC8 */ + SND_BEBOB_DEV_ENTRY(VEN_TERRATEC, 0x00000005, &spec_normal), + /* Terratec Electronic GmbH, Aureon 7.1 Firewire */ + SND_BEBOB_DEV_ENTRY(VEN_TERRATEC, 0x00000002, &spec_normal), + /* Yamaha, GO44 */ + SND_BEBOB_DEV_ENTRY(VEN_YAMAHA, 0x0010000b, &yamaha_go_spec), + /* YAMAHA, GO46 */ + SND_BEBOB_DEV_ENTRY(VEN_YAMAHA, 0x0010000c, &yamaha_go_spec), + /* Focusrite, SaffirePro 26 I/O */ + SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, 0x00000003, &saffirepro_26_spec), + /* Focusrite, SaffirePro 10 I/O */ + SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, 0x00000006, &saffirepro_10_spec), + /* Focusrite, Saffire(no label and LE) */ + SND_BEBOB_DEV_ENTRY(VEN_FOCUSRITE, MODEL_FOCUSRITE_SAFFIRE_BOTH, + &saffire_spec), + /* M-Audio, Firewire 410 */ + SND_BEBOB_DEV_ENTRY(VEN_MAUDIO2, 0x00010058, NULL), /* bootloader */ + SND_BEBOB_DEV_ENTRY(VEN_MAUDIO2, 0x00010046, &maudio_fw410_spec), + /* M-Audio, Firewire Audiophile */ + SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, MODEL_MAUDIO_AUDIOPHILE_BOTH, + &maudio_audiophile_spec), + /* M-Audio, Firewire Solo */ + SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x00010062, &maudio_solo_spec), + /* M-Audio, Ozonic */ + SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x0000000a, &maudio_ozonic_spec), + /* M-Audio NRV10 */ + SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x00010081, &maudio_nrv10_spec), + /* M-Audio, ProFireLightbridge */ + SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x000100a1, &spec_normal), + /* Firewire 1814 */ + SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, 0x00010070, NULL), /* bootloader */ + SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, MODEL_MAUDIO_FW1814, + &maudio_special_spec), + /* M-Audio ProjectMix */ + SND_BEBOB_DEV_ENTRY(VEN_MAUDIO1, MODEL_MAUDIO_PROJECTMIX, + &maudio_special_spec), + /* IDs are unknown but able to be supported */ + /* Apogee, Mini-ME Firewire */ + /* Apogee, Mini-DAC Firewire */ + /* Behringer, F-Control Audio 1616 */ + /* Behringer, F-Control Audio 610 */ + /* Cakawalk, Sonar Power Studio 66 */ + /* CME, UF400e */ + /* ESI, Quotafire XL */ + /* Infrasonic, DewX */ + /* Infrasonic, Windy6 */ + /* Mackie, Digital X Bus x.200 */ + /* Mackie, Digital X Bus x.400 */ + /* Phonic, HB 12 */ + /* Phonic, HB 24 */ + /* Phonic, HB 18 */ + /* Phonic, FireFly 202 */ + /* Phonic, FireFly 302 */ + /* Rolf Spuler, Firewire Guitar */ + {} +}; +MODULE_DEVICE_TABLE(ieee1394, bebob_id_table); + +static struct fw_driver bebob_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "snd-bebob", + .bus = &fw_bus_type, + }, + .probe = bebob_probe, + .update = bebob_update, + .remove = bebob_remove, + .id_table = bebob_id_table, +}; + +static int __init +snd_bebob_init(void) +{ + return driver_register(&bebob_driver.driver); +} + +static void __exit +snd_bebob_exit(void) +{ + driver_unregister(&bebob_driver.driver); +} + +module_init(snd_bebob_init); +module_exit(snd_bebob_exit); diff --git a/kernel/sound/firewire/bebob/bebob.h b/kernel/sound/firewire/bebob/bebob.h new file mode 100644 index 000000000..dfbcd2331 --- /dev/null +++ b/kernel/sound/firewire/bebob/bebob.h @@ -0,0 +1,255 @@ +/* + * bebob.h - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#ifndef SOUND_BEBOB_H_INCLUDED +#define SOUND_BEBOB_H_INCLUDED + +#include <linux/compat.h> +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/firewire-constants.h> +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/delay.h> +#include <linux/slab.h> + +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/info.h> +#include <sound/rawmidi.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/firewire.h> +#include <sound/hwdep.h> + +#include "../lib.h" +#include "../fcp.h" +#include "../packets-buffer.h" +#include "../iso-resources.h" +#include "../amdtp.h" +#include "../cmp.h" + +/* basic register addresses on DM1000/DM1100/DM1500 */ +#define BEBOB_ADDR_REG_INFO 0xffffc8020000ULL +#define BEBOB_ADDR_REG_REQ 0xffffc8021000ULL + +struct snd_bebob; + +#define SND_BEBOB_STRM_FMT_ENTRIES 7 +struct snd_bebob_stream_formation { + unsigned int pcm; + unsigned int midi; +}; +/* this is a lookup table for index of stream formations */ +extern const unsigned int snd_bebob_rate_table[SND_BEBOB_STRM_FMT_ENTRIES]; + +/* device specific operations */ +#define SND_BEBOB_CLOCK_INTERNAL "Internal" +struct snd_bebob_clock_spec { + unsigned int num; + const char *const *labels; + int (*get)(struct snd_bebob *bebob, unsigned int *id); +}; +struct snd_bebob_rate_spec { + int (*get)(struct snd_bebob *bebob, unsigned int *rate); + int (*set)(struct snd_bebob *bebob, unsigned int rate); +}; +struct snd_bebob_meter_spec { + unsigned int num; + const char *const *labels; + int (*get)(struct snd_bebob *bebob, u32 *target, unsigned int size); +}; +struct snd_bebob_spec { + struct snd_bebob_clock_spec *clock; + struct snd_bebob_rate_spec *rate; + struct snd_bebob_meter_spec *meter; +}; + +struct snd_bebob { + struct snd_card *card; + struct fw_unit *unit; + int card_index; + + struct mutex mutex; + spinlock_t lock; + + const struct snd_bebob_spec *spec; + + unsigned int midi_input_ports; + unsigned int midi_output_ports; + + /* for bus reset quirk */ + struct completion bus_reset; + bool connected; + + struct amdtp_stream *master; + struct amdtp_stream tx_stream; + struct amdtp_stream rx_stream; + struct cmp_connection out_conn; + struct cmp_connection in_conn; + atomic_t capture_substreams; + atomic_t playback_substreams; + + struct snd_bebob_stream_formation + tx_stream_formations[SND_BEBOB_STRM_FMT_ENTRIES]; + struct snd_bebob_stream_formation + rx_stream_formations[SND_BEBOB_STRM_FMT_ENTRIES]; + + int sync_input_plug; + + /* for uapi */ + int dev_lock_count; + bool dev_lock_changed; + wait_queue_head_t hwdep_wait; + + /* for M-Audio special devices */ + void *maudio_special_quirk; + bool deferred_registration; +}; + +static inline int +snd_bebob_read_block(struct fw_unit *unit, u64 addr, void *buf, int size) +{ + return snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST, + BEBOB_ADDR_REG_INFO + addr, + buf, size, 0); +} + +static inline int +snd_bebob_read_quad(struct fw_unit *unit, u64 addr, u32 *buf) +{ + return snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST, + BEBOB_ADDR_REG_INFO + addr, + (void *)buf, sizeof(u32), 0); +} + +/* AV/C Audio Subunit Specification 1.0 (Oct 2000, 1394TA) */ +int avc_audio_set_selector(struct fw_unit *unit, unsigned int subunit_id, + unsigned int fb_id, unsigned int num); +int avc_audio_get_selector(struct fw_unit *unit, unsigned int subunit_id, + unsigned int fb_id, unsigned int *num); + +/* + * AVC command extensions, AV/C Unit and Subunit, Revision 17 + * (Nov 2003, BridgeCo) + */ +#define AVC_BRIDGECO_ADDR_BYTES 6 +enum avc_bridgeco_plug_dir { + AVC_BRIDGECO_PLUG_DIR_IN = 0x00, + AVC_BRIDGECO_PLUG_DIR_OUT = 0x01 +}; +enum avc_bridgeco_plug_mode { + AVC_BRIDGECO_PLUG_MODE_UNIT = 0x00, + AVC_BRIDGECO_PLUG_MODE_SUBUNIT = 0x01, + AVC_BRIDGECO_PLUG_MODE_FUNCTION_BLOCK = 0x02 +}; +enum avc_bridgeco_plug_unit { + AVC_BRIDGECO_PLUG_UNIT_ISOC = 0x00, + AVC_BRIDGECO_PLUG_UNIT_EXT = 0x01, + AVC_BRIDGECO_PLUG_UNIT_ASYNC = 0x02 +}; +enum avc_bridgeco_plug_type { + AVC_BRIDGECO_PLUG_TYPE_ISOC = 0x00, + AVC_BRIDGECO_PLUG_TYPE_ASYNC = 0x01, + AVC_BRIDGECO_PLUG_TYPE_MIDI = 0x02, + AVC_BRIDGECO_PLUG_TYPE_SYNC = 0x03, + AVC_BRIDGECO_PLUG_TYPE_ANA = 0x04, + AVC_BRIDGECO_PLUG_TYPE_DIG = 0x05 +}; +static inline void +avc_bridgeco_fill_unit_addr(u8 buf[AVC_BRIDGECO_ADDR_BYTES], + enum avc_bridgeco_plug_dir dir, + enum avc_bridgeco_plug_unit unit, + unsigned int pid) +{ + buf[0] = 0xff; /* Unit */ + buf[1] = dir; + buf[2] = AVC_BRIDGECO_PLUG_MODE_UNIT; + buf[3] = unit; + buf[4] = 0xff & pid; + buf[5] = 0xff; /* reserved */ +} +static inline void +avc_bridgeco_fill_msu_addr(u8 buf[AVC_BRIDGECO_ADDR_BYTES], + enum avc_bridgeco_plug_dir dir, + unsigned int pid) +{ + buf[0] = 0x60; /* Music subunit */ + buf[1] = dir; + buf[2] = AVC_BRIDGECO_PLUG_MODE_SUBUNIT; + buf[3] = 0xff & pid; + buf[4] = 0xff; /* reserved */ + buf[5] = 0xff; /* reserved */ +} +int avc_bridgeco_get_plug_ch_pos(struct fw_unit *unit, + u8 addr[AVC_BRIDGECO_ADDR_BYTES], + u8 *buf, unsigned int len); +int avc_bridgeco_get_plug_type(struct fw_unit *unit, + u8 addr[AVC_BRIDGECO_ADDR_BYTES], + enum avc_bridgeco_plug_type *type); +int avc_bridgeco_get_plug_section_type(struct fw_unit *unit, + u8 addr[AVC_BRIDGECO_ADDR_BYTES], + unsigned int id, u8 *type); +int avc_bridgeco_get_plug_input(struct fw_unit *unit, + u8 addr[AVC_BRIDGECO_ADDR_BYTES], + u8 input[7]); +int avc_bridgeco_get_plug_strm_fmt(struct fw_unit *unit, + u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 *buf, + unsigned int *len, unsigned int eid); + +/* for AMDTP streaming */ +int snd_bebob_stream_get_rate(struct snd_bebob *bebob, unsigned int *rate); +int snd_bebob_stream_set_rate(struct snd_bebob *bebob, unsigned int rate); +int snd_bebob_stream_check_internal_clock(struct snd_bebob *bebob, + bool *internal); +int snd_bebob_stream_discover(struct snd_bebob *bebob); +int snd_bebob_stream_init_duplex(struct snd_bebob *bebob); +int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate); +void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob); +void snd_bebob_stream_update_duplex(struct snd_bebob *bebob); +void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob); + +void snd_bebob_stream_lock_changed(struct snd_bebob *bebob); +int snd_bebob_stream_lock_try(struct snd_bebob *bebob); +void snd_bebob_stream_lock_release(struct snd_bebob *bebob); + +void snd_bebob_proc_init(struct snd_bebob *bebob); + +int snd_bebob_create_midi_devices(struct snd_bebob *bebob); + +int snd_bebob_create_pcm_devices(struct snd_bebob *bebob); + +int snd_bebob_create_hwdep_device(struct snd_bebob *bebob); + +/* model specific operations */ +extern struct snd_bebob_spec phase88_rack_spec; +extern struct snd_bebob_spec phase24_series_spec; +extern struct snd_bebob_spec yamaha_go_spec; +extern struct snd_bebob_spec saffirepro_26_spec; +extern struct snd_bebob_spec saffirepro_10_spec; +extern struct snd_bebob_spec saffire_le_spec; +extern struct snd_bebob_spec saffire_spec; +extern struct snd_bebob_spec maudio_fw410_spec; +extern struct snd_bebob_spec maudio_audiophile_spec; +extern struct snd_bebob_spec maudio_solo_spec; +extern struct snd_bebob_spec maudio_ozonic_spec; +extern struct snd_bebob_spec maudio_nrv10_spec; +extern struct snd_bebob_spec maudio_special_spec; +int snd_bebob_maudio_special_discover(struct snd_bebob *bebob, bool is1814); +int snd_bebob_maudio_load_firmware(struct fw_unit *unit); + +#define SND_BEBOB_DEV_ENTRY(vendor, model, data) \ +{ \ + .match_flags = IEEE1394_MATCH_VENDOR_ID | \ + IEEE1394_MATCH_MODEL_ID, \ + .vendor_id = vendor, \ + .model_id = model, \ + .driver_data = (kernel_ulong_t)data \ +} + +#endif diff --git a/kernel/sound/firewire/bebob/bebob_command.c b/kernel/sound/firewire/bebob/bebob_command.c new file mode 100644 index 000000000..9402cc15d --- /dev/null +++ b/kernel/sound/firewire/bebob/bebob_command.c @@ -0,0 +1,282 @@ +/* + * bebob_command.c - driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./bebob.h" + +int avc_audio_set_selector(struct fw_unit *unit, unsigned int subunit_id, + unsigned int fb_id, unsigned int num) +{ + u8 *buf; + int err; + + buf = kzalloc(12, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + buf[0] = 0x00; /* AV/C CONTROL */ + buf[1] = 0x08 | (0x07 & subunit_id); /* AUDIO SUBUNIT ID */ + buf[2] = 0xb8; /* FUNCTION BLOCK */ + buf[3] = 0x80; /* type is 'selector'*/ + buf[4] = 0xff & fb_id; /* function block id */ + buf[5] = 0x10; /* control attribute is CURRENT */ + buf[6] = 0x02; /* selector length is 2 */ + buf[7] = 0xff & num; /* input function block plug number */ + buf[8] = 0x01; /* control selector is SELECTOR_CONTROL */ + + err = fcp_avc_transaction(unit, buf, 12, buf, 12, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | + BIT(6) | BIT(7) | BIT(8)); + if (err > 0 && err < 9) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else if (err > 0) + err = 0; + + kfree(buf); + return err; +} + +int avc_audio_get_selector(struct fw_unit *unit, unsigned int subunit_id, + unsigned int fb_id, unsigned int *num) +{ + u8 *buf; + int err; + + buf = kzalloc(12, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + buf[0] = 0x01; /* AV/C STATUS */ + buf[1] = 0x08 | (0x07 & subunit_id); /* AUDIO SUBUNIT ID */ + buf[2] = 0xb8; /* FUNCTION BLOCK */ + buf[3] = 0x80; /* type is 'selector'*/ + buf[4] = 0xff & fb_id; /* function block id */ + buf[5] = 0x10; /* control attribute is CURRENT */ + buf[6] = 0x02; /* selector length is 2 */ + buf[7] = 0xff; /* input function block plug number */ + buf[8] = 0x01; /* control selector is SELECTOR_CONTROL */ + + err = fcp_avc_transaction(unit, buf, 12, buf, 12, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | + BIT(6) | BIT(8)); + if (err > 0 && err < 9) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else if (buf[0] == 0x0b) /* IN TRANSITION */ + err = -EAGAIN; + if (err < 0) + goto end; + + *num = buf[7]; + err = 0; +end: + kfree(buf); + return err; +} + +static inline void +avc_bridgeco_fill_extension_addr(u8 *buf, u8 *addr) +{ + buf[1] = addr[0]; + memcpy(buf + 4, addr + 1, 5); +} + +static inline void +avc_bridgeco_fill_plug_info_extension_command(u8 *buf, u8 *addr, + unsigned int itype) +{ + buf[0] = 0x01; /* AV/C STATUS */ + buf[2] = 0x02; /* AV/C GENERAL PLUG INFO */ + buf[3] = 0xc0; /* BridgeCo extension */ + avc_bridgeco_fill_extension_addr(buf, addr); + buf[9] = itype; /* info type */ +} + +int avc_bridgeco_get_plug_type(struct fw_unit *unit, + u8 addr[AVC_BRIDGECO_ADDR_BYTES], + enum avc_bridgeco_plug_type *type) +{ + u8 *buf; + int err; + + buf = kzalloc(12, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + /* Info type is 'plug type'. */ + avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x00); + + err = fcp_avc_transaction(unit, buf, 12, buf, 12, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | + BIT(6) | BIT(7) | BIT(9)); + if ((err >= 0) && (err < 8)) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else if (buf[0] == 0x0b) /* IN TRANSITION */ + err = -EAGAIN; + if (err < 0) + goto end; + + *type = buf[10]; + err = 0; +end: + kfree(buf); + return err; +} + +int avc_bridgeco_get_plug_ch_pos(struct fw_unit *unit, + u8 addr[AVC_BRIDGECO_ADDR_BYTES], + u8 *buf, unsigned int len) +{ + int err; + + /* Info type is 'channel position'. */ + avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x03); + + err = fcp_avc_transaction(unit, buf, 12, buf, 256, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | + BIT(5) | BIT(6) | BIT(7) | BIT(9)); + if ((err >= 0) && (err < 8)) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else if (buf[0] == 0x0b) /* IN TRANSITION */ + err = -EAGAIN; + if (err < 0) + goto end; + + /* Pick up specific data. */ + memmove(buf, buf + 10, err - 10); + err = 0; +end: + return err; +} + +int avc_bridgeco_get_plug_section_type(struct fw_unit *unit, + u8 addr[AVC_BRIDGECO_ADDR_BYTES], + unsigned int id, u8 *type) +{ + u8 *buf; + int err; + + /* section info includes charactors but this module don't need it */ + buf = kzalloc(12, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + /* Info type is 'section info'. */ + avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x07); + buf[10] = 0xff & ++id; /* section id */ + + err = fcp_avc_transaction(unit, buf, 12, buf, 12, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | + BIT(6) | BIT(7) | BIT(9) | BIT(10)); + if ((err >= 0) && (err < 8)) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else if (buf[0] == 0x0b) /* IN TRANSITION */ + err = -EAGAIN; + if (err < 0) + goto end; + + *type = buf[11]; + err = 0; +end: + kfree(buf); + return err; +} + +int avc_bridgeco_get_plug_input(struct fw_unit *unit, + u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 input[7]) +{ + int err; + u8 *buf; + + buf = kzalloc(18, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + /* Info type is 'plug input'. */ + avc_bridgeco_fill_plug_info_extension_command(buf, addr, 0x05); + + err = fcp_avc_transaction(unit, buf, 16, buf, 16, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | + BIT(6) | BIT(7)); + if ((err >= 0) && (err < 8)) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else if (buf[0] == 0x0b) /* IN TRANSITION */ + err = -EAGAIN; + if (err < 0) + goto end; + + memcpy(input, buf + 10, 5); + err = 0; +end: + kfree(buf); + return err; +} + +int avc_bridgeco_get_plug_strm_fmt(struct fw_unit *unit, + u8 addr[AVC_BRIDGECO_ADDR_BYTES], u8 *buf, + unsigned int *len, unsigned int eid) +{ + int err; + + /* check given buffer */ + if ((buf == NULL) || (*len < 12)) { + err = -EINVAL; + goto end; + } + + buf[0] = 0x01; /* AV/C STATUS */ + buf[2] = 0x2f; /* AV/C STREAM FORMAT SUPPORT */ + buf[3] = 0xc1; /* Bridgeco extension - List Request */ + avc_bridgeco_fill_extension_addr(buf, addr); + buf[10] = 0xff & eid; /* Entry ID */ + + err = fcp_avc_transaction(unit, buf, 12, buf, *len, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | + BIT(6) | BIT(7) | BIT(10)); + if ((err >= 0) && (err < 12)) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else if (buf[0] == 0x0b) /* IN TRANSITION */ + err = -EAGAIN; + else if (buf[10] != eid) + err = -EIO; + if (err < 0) + goto end; + + /* Pick up 'stream format info'. */ + memmove(buf, buf + 11, err - 11); + *len = err - 11; + err = 0; +end: + return err; +} diff --git a/kernel/sound/firewire/bebob/bebob_focusrite.c b/kernel/sound/firewire/bebob/bebob_focusrite.c new file mode 100644 index 000000000..fc67c1b7c --- /dev/null +++ b/kernel/sound/firewire/bebob/bebob_focusrite.c @@ -0,0 +1,313 @@ +/* + * bebob_focusrite.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./bebob.h" + +#define ANA_IN "Analog In" +#define DIG_IN "Digital In" +#define ANA_OUT "Analog Out" +#define DIG_OUT "Digital Out" +#define STM_IN "Stream In" + +#define SAFFIRE_ADDRESS_BASE 0x000100000000ULL + +#define SAFFIRE_OFFSET_CLOCK_SOURCE 0x00f8 +#define SAFFIREPRO_OFFSET_CLOCK_SOURCE 0x0174 + +/* whether sync to external device or not */ +#define SAFFIRE_OFFSET_CLOCK_SYNC_EXT 0x013c +#define SAFFIRE_LE_OFFSET_CLOCK_SYNC_EXT 0x0432 +#define SAFFIREPRO_OFFSET_CLOCK_SYNC_EXT 0x0164 + +#define SAFFIRE_CLOCK_SOURCE_INTERNAL 0 +#define SAFFIRE_CLOCK_SOURCE_SPDIF 1 + +/* clock sources as returned from register of Saffire Pro 10 and 26 */ +#define SAFFIREPRO_CLOCK_SOURCE_INTERNAL 0 +#define SAFFIREPRO_CLOCK_SOURCE_SKIP 1 /* never used on hardware */ +#define SAFFIREPRO_CLOCK_SOURCE_SPDIF 2 +#define SAFFIREPRO_CLOCK_SOURCE_ADAT1 3 /* not used on s.pro. 10 */ +#define SAFFIREPRO_CLOCK_SOURCE_ADAT2 4 /* not used on s.pro. 10 */ +#define SAFFIREPRO_CLOCK_SOURCE_WORDCLOCK 5 +#define SAFFIREPRO_CLOCK_SOURCE_COUNT 6 + +/* S/PDIF, ADAT1, ADAT2 is enabled or not. three quadlets */ +#define SAFFIREPRO_ENABLE_DIG_IFACES 0x01a4 + +/* saffirepro has its own parameter for sampling frequency */ +#define SAFFIREPRO_RATE_NOREBOOT 0x01cc +/* index is the value for this register */ +static const unsigned int rates[] = { + [0] = 0, + [1] = 44100, + [2] = 48000, + [3] = 88200, + [4] = 96000, + [5] = 176400, + [6] = 192000 +}; + +/* saffire(no label)/saffire LE has metering */ +#define SAFFIRE_OFFSET_METER 0x0100 +#define SAFFIRE_LE_OFFSET_METER 0x0168 + +static inline int +saffire_read_block(struct snd_bebob *bebob, u64 offset, + u32 *buf, unsigned int size) +{ + unsigned int i; + int err; + __be32 *tmp = (__be32 *)buf; + + err = snd_fw_transaction(bebob->unit, TCODE_READ_BLOCK_REQUEST, + SAFFIRE_ADDRESS_BASE + offset, + tmp, size, 0); + if (err < 0) + goto end; + + for (i = 0; i < size / sizeof(u32); i++) + buf[i] = be32_to_cpu(tmp[i]); +end: + return err; +} + +static inline int +saffire_read_quad(struct snd_bebob *bebob, u64 offset, u32 *value) +{ + int err; + __be32 tmp; + + err = snd_fw_transaction(bebob->unit, TCODE_READ_QUADLET_REQUEST, + SAFFIRE_ADDRESS_BASE + offset, + &tmp, sizeof(__be32), 0); + if (err < 0) + goto end; + + *value = be32_to_cpu(tmp); +end: + return err; +} + +static inline int +saffire_write_quad(struct snd_bebob *bebob, u64 offset, u32 value) +{ + __be32 data = cpu_to_be32(value); + + return snd_fw_transaction(bebob->unit, TCODE_WRITE_QUADLET_REQUEST, + SAFFIRE_ADDRESS_BASE + offset, + &data, sizeof(__be32), 0); +} + +static const char *const saffirepro_10_clk_src_labels[] = { + SND_BEBOB_CLOCK_INTERNAL, "S/PDIF", "Word Clock" +}; +static const char *const saffirepro_26_clk_src_labels[] = { + SND_BEBOB_CLOCK_INTERNAL, "S/PDIF", "ADAT1", "ADAT2", "Word Clock" +}; +/* Value maps between registers and labels for SaffirePro 10/26. */ +static const signed char saffirepro_clk_maps[][SAFFIREPRO_CLOCK_SOURCE_COUNT] = { + /* SaffirePro 10 */ + [0] = { + [SAFFIREPRO_CLOCK_SOURCE_INTERNAL] = 0, + [SAFFIREPRO_CLOCK_SOURCE_SKIP] = -1, /* not supported */ + [SAFFIREPRO_CLOCK_SOURCE_SPDIF] = 1, + [SAFFIREPRO_CLOCK_SOURCE_ADAT1] = -1, /* not supported */ + [SAFFIREPRO_CLOCK_SOURCE_ADAT2] = -1, /* not supported */ + [SAFFIREPRO_CLOCK_SOURCE_WORDCLOCK] = 2, + }, + /* SaffirePro 26 */ + [1] = { + [SAFFIREPRO_CLOCK_SOURCE_INTERNAL] = 0, + [SAFFIREPRO_CLOCK_SOURCE_SKIP] = -1, /* not supported */ + [SAFFIREPRO_CLOCK_SOURCE_SPDIF] = 1, + [SAFFIREPRO_CLOCK_SOURCE_ADAT1] = 2, + [SAFFIREPRO_CLOCK_SOURCE_ADAT2] = 3, + [SAFFIREPRO_CLOCK_SOURCE_WORDCLOCK] = 4, + } +}; + +static int +saffirepro_both_clk_freq_get(struct snd_bebob *bebob, unsigned int *rate) +{ + u32 id; + int err; + + err = saffire_read_quad(bebob, SAFFIREPRO_RATE_NOREBOOT, &id); + if (err < 0) + goto end; + if (id >= ARRAY_SIZE(rates)) + err = -EIO; + else + *rate = rates[id]; +end: + return err; +} +static int +saffirepro_both_clk_freq_set(struct snd_bebob *bebob, unsigned int rate) +{ + u32 id; + + for (id = 0; id < ARRAY_SIZE(rates); id++) { + if (rates[id] == rate) + break; + } + if (id == ARRAY_SIZE(rates)) + return -EINVAL; + + return saffire_write_quad(bebob, SAFFIREPRO_RATE_NOREBOOT, id); +} + +/* + * query hardware for current clock source, return our internally + * used clock index in *id, depending on hardware. + */ +static int +saffirepro_both_clk_src_get(struct snd_bebob *bebob, unsigned int *id) +{ + int err; + u32 value; /* clock source read from hw register */ + const signed char *map; + + err = saffire_read_quad(bebob, SAFFIREPRO_OFFSET_CLOCK_SOURCE, &value); + if (err < 0) + goto end; + + /* depending on hardware, use a different mapping */ + if (bebob->spec->clock->labels == saffirepro_10_clk_src_labels) + map = saffirepro_clk_maps[0]; + else + map = saffirepro_clk_maps[1]; + + /* In a case that this driver cannot handle the value of register. */ + if (value >= SAFFIREPRO_CLOCK_SOURCE_COUNT || map[value] < 0) { + err = -EIO; + goto end; + } + + *id = (unsigned int)map[value]; +end: + return err; +} + +struct snd_bebob_spec saffire_le_spec; +static const char *const saffire_both_clk_src_labels[] = { + SND_BEBOB_CLOCK_INTERNAL, "S/PDIF" +}; +static int +saffire_both_clk_src_get(struct snd_bebob *bebob, unsigned int *id) +{ + int err; + u32 value; + + err = saffire_read_quad(bebob, SAFFIRE_OFFSET_CLOCK_SOURCE, &value); + if (err >= 0) + *id = 0xff & value; + + return err; +}; +static const char *const saffire_le_meter_labels[] = { + ANA_IN, ANA_IN, DIG_IN, + ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT, + STM_IN, STM_IN +}; +static const char *const saffire_meter_labels[] = { + ANA_IN, ANA_IN, + STM_IN, STM_IN, STM_IN, STM_IN, STM_IN, +}; +static int +saffire_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size) +{ + struct snd_bebob_meter_spec *spec = bebob->spec->meter; + unsigned int channels; + u64 offset; + int err; + + if (spec->labels == saffire_le_meter_labels) + offset = SAFFIRE_LE_OFFSET_METER; + else + offset = SAFFIRE_OFFSET_METER; + + channels = spec->num * 2; + if (size < channels * sizeof(u32)) + return -EIO; + + err = saffire_read_block(bebob, offset, buf, size); + if (err >= 0 && spec->labels == saffire_le_meter_labels) { + swap(buf[1], buf[3]); + swap(buf[2], buf[3]); + swap(buf[3], buf[4]); + + swap(buf[7], buf[10]); + swap(buf[8], buf[10]); + swap(buf[9], buf[11]); + swap(buf[11], buf[12]); + + swap(buf[15], buf[16]); + } + + return err; +} + +static struct snd_bebob_rate_spec saffirepro_both_rate_spec = { + .get = &saffirepro_both_clk_freq_get, + .set = &saffirepro_both_clk_freq_set, +}; +/* Saffire Pro 26 I/O */ +static struct snd_bebob_clock_spec saffirepro_26_clk_spec = { + .num = ARRAY_SIZE(saffirepro_26_clk_src_labels), + .labels = saffirepro_26_clk_src_labels, + .get = &saffirepro_both_clk_src_get, +}; +struct snd_bebob_spec saffirepro_26_spec = { + .clock = &saffirepro_26_clk_spec, + .rate = &saffirepro_both_rate_spec, + .meter = NULL +}; +/* Saffire Pro 10 I/O */ +static struct snd_bebob_clock_spec saffirepro_10_clk_spec = { + .num = ARRAY_SIZE(saffirepro_10_clk_src_labels), + .labels = saffirepro_10_clk_src_labels, + .get = &saffirepro_both_clk_src_get, +}; +struct snd_bebob_spec saffirepro_10_spec = { + .clock = &saffirepro_10_clk_spec, + .rate = &saffirepro_both_rate_spec, + .meter = NULL +}; + +static struct snd_bebob_rate_spec saffire_both_rate_spec = { + .get = &snd_bebob_stream_get_rate, + .set = &snd_bebob_stream_set_rate, +}; +static struct snd_bebob_clock_spec saffire_both_clk_spec = { + .num = ARRAY_SIZE(saffire_both_clk_src_labels), + .labels = saffire_both_clk_src_labels, + .get = &saffire_both_clk_src_get, +}; +/* Saffire LE */ +static struct snd_bebob_meter_spec saffire_le_meter_spec = { + .num = ARRAY_SIZE(saffire_le_meter_labels), + .labels = saffire_le_meter_labels, + .get = &saffire_meter_get, +}; +struct snd_bebob_spec saffire_le_spec = { + .clock = &saffire_both_clk_spec, + .rate = &saffire_both_rate_spec, + .meter = &saffire_le_meter_spec +}; +/* Saffire */ +static struct snd_bebob_meter_spec saffire_meter_spec = { + .num = ARRAY_SIZE(saffire_meter_labels), + .labels = saffire_meter_labels, + .get = &saffire_meter_get, +}; +struct snd_bebob_spec saffire_spec = { + .clock = &saffire_both_clk_spec, + .rate = &saffire_both_rate_spec, + .meter = &saffire_meter_spec +}; diff --git a/kernel/sound/firewire/bebob/bebob_hwdep.c b/kernel/sound/firewire/bebob/bebob_hwdep.c new file mode 100644 index 000000000..ce731f4d8 --- /dev/null +++ b/kernel/sound/firewire/bebob/bebob_hwdep.c @@ -0,0 +1,199 @@ +/* + * bebob_hwdep.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +/* + * This codes give three functionality. + * + * 1.get firewire node infomation + * 2.get notification about starting/stopping stream + * 3.lock/unlock stream + */ + +#include "bebob.h" + +static long +hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count, + loff_t *offset) +{ + struct snd_bebob *bebob = hwdep->private_data; + DEFINE_WAIT(wait); + union snd_firewire_event event; + + spin_lock_irq(&bebob->lock); + + while (!bebob->dev_lock_changed) { + prepare_to_wait(&bebob->hwdep_wait, &wait, TASK_INTERRUPTIBLE); + spin_unlock_irq(&bebob->lock); + schedule(); + finish_wait(&bebob->hwdep_wait, &wait); + if (signal_pending(current)) + return -ERESTARTSYS; + spin_lock_irq(&bebob->lock); + } + + memset(&event, 0, sizeof(event)); + if (bebob->dev_lock_changed) { + event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS; + event.lock_status.status = (bebob->dev_lock_count > 0); + bebob->dev_lock_changed = false; + + count = min_t(long, count, sizeof(event.lock_status)); + } + + spin_unlock_irq(&bebob->lock); + + if (copy_to_user(buf, &event, count)) + return -EFAULT; + + return count; +} + +static unsigned int +hwdep_poll(struct snd_hwdep *hwdep, struct file *file, poll_table *wait) +{ + struct snd_bebob *bebob = hwdep->private_data; + unsigned int events; + + poll_wait(file, &bebob->hwdep_wait, wait); + + spin_lock_irq(&bebob->lock); + if (bebob->dev_lock_changed) + events = POLLIN | POLLRDNORM; + else + events = 0; + spin_unlock_irq(&bebob->lock); + + return events; +} + +static int +hwdep_get_info(struct snd_bebob *bebob, void __user *arg) +{ + struct fw_device *dev = fw_parent_device(bebob->unit); + struct snd_firewire_get_info info; + + memset(&info, 0, sizeof(info)); + info.type = SNDRV_FIREWIRE_TYPE_BEBOB; + info.card = dev->card->index; + *(__be32 *)&info.guid[0] = cpu_to_be32(dev->config_rom[3]); + *(__be32 *)&info.guid[4] = cpu_to_be32(dev->config_rom[4]); + strlcpy(info.device_name, dev_name(&dev->device), + sizeof(info.device_name)); + + if (copy_to_user(arg, &info, sizeof(info))) + return -EFAULT; + + return 0; +} + +static int +hwdep_lock(struct snd_bebob *bebob) +{ + int err; + + spin_lock_irq(&bebob->lock); + + if (bebob->dev_lock_count == 0) { + bebob->dev_lock_count = -1; + err = 0; + } else { + err = -EBUSY; + } + + spin_unlock_irq(&bebob->lock); + + return err; +} + +static int +hwdep_unlock(struct snd_bebob *bebob) +{ + int err; + + spin_lock_irq(&bebob->lock); + + if (bebob->dev_lock_count == -1) { + bebob->dev_lock_count = 0; + err = 0; + } else { + err = -EBADFD; + } + + spin_unlock_irq(&bebob->lock); + + return err; +} + +static int +hwdep_release(struct snd_hwdep *hwdep, struct file *file) +{ + struct snd_bebob *bebob = hwdep->private_data; + + spin_lock_irq(&bebob->lock); + if (bebob->dev_lock_count == -1) + bebob->dev_lock_count = 0; + spin_unlock_irq(&bebob->lock); + + return 0; +} + +static int +hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct snd_bebob *bebob = hwdep->private_data; + + switch (cmd) { + case SNDRV_FIREWIRE_IOCTL_GET_INFO: + return hwdep_get_info(bebob, (void __user *)arg); + case SNDRV_FIREWIRE_IOCTL_LOCK: + return hwdep_lock(bebob); + case SNDRV_FIREWIRE_IOCTL_UNLOCK: + return hwdep_unlock(bebob); + default: + return -ENOIOCTLCMD; + } +} + +#ifdef CONFIG_COMPAT +static int +hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file, + unsigned int cmd, unsigned long arg) +{ + return hwdep_ioctl(hwdep, file, cmd, + (unsigned long)compat_ptr(arg)); +} +#else +#define hwdep_compat_ioctl NULL +#endif + +static const struct snd_hwdep_ops hwdep_ops = { + .read = hwdep_read, + .release = hwdep_release, + .poll = hwdep_poll, + .ioctl = hwdep_ioctl, + .ioctl_compat = hwdep_compat_ioctl, +}; + +int snd_bebob_create_hwdep_device(struct snd_bebob *bebob) +{ + struct snd_hwdep *hwdep; + int err; + + err = snd_hwdep_new(bebob->card, "BeBoB", 0, &hwdep); + if (err < 0) + goto end; + strcpy(hwdep->name, "BeBoB"); + hwdep->iface = SNDRV_HWDEP_IFACE_FW_BEBOB; + hwdep->ops = hwdep_ops; + hwdep->private_data = bebob; + hwdep->exclusive = true; +end: + return err; +} + diff --git a/kernel/sound/firewire/bebob/bebob_maudio.c b/kernel/sound/firewire/bebob/bebob_maudio.c new file mode 100644 index 000000000..9ee25a63f --- /dev/null +++ b/kernel/sound/firewire/bebob/bebob_maudio.c @@ -0,0 +1,788 @@ +/* + * bebob_maudio.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./bebob.h" +#include <sound/control.h> + +/* + * Just powering on, Firewire 410/Audiophile/1814 and ProjectMix I/O wait to + * download firmware blob. To enable these devices, drivers should upload + * firmware blob and send a command to initialize configuration to factory + * settings when completing uploading. Then these devices generate bus reset + * and are recognized as new devices with the firmware. + * + * But with firmware version 5058 or later, the firmware is stored to flash + * memory in the device and drivers can tell bootloader to load the firmware + * by sending a cue. This cue must be sent one time. + * + * For streaming, both of output and input streams are needed for Firewire 410 + * and Ozonic. The single stream is OK for the other devices even if the clock + * source is not SYT-Match (I note no devices use SYT-Match). + * + * Without streaming, the devices except for Firewire Audiophile can mix any + * input and output. For this reason, Audiophile cannot be used as standalone + * mixer. + * + * Firewire 1814 and ProjectMix I/O uses special firmware. It will be freezed + * when receiving any commands which the firmware can't understand. These + * devices utilize completely different system to control. It is some + * write-transaction directly into a certain address. All of addresses for mixer + * functionality is between 0xffc700700000 to 0xffc70070009c. + */ + +/* Offset from information register */ +#define INFO_OFFSET_SW_DATE 0x20 + +/* Bootloader Protocol Version 1 */ +#define MAUDIO_BOOTLOADER_CUE1 0x00000001 +/* + * Initializing configuration to factory settings (= 0x1101), (swapped in line), + * Command code is zero (= 0x00), + * the number of operands is zero (= 0x00)(at least significant byte) + */ +#define MAUDIO_BOOTLOADER_CUE2 0x01110000 +/* padding */ +#define MAUDIO_BOOTLOADER_CUE3 0x00000000 + +#define MAUDIO_SPECIFIC_ADDRESS 0xffc700000000ULL + +#define METER_OFFSET 0x00600000 + +/* some device has sync info after metering data */ +#define METER_SIZE_SPECIAL 84 /* with sync info */ +#define METER_SIZE_FW410 76 /* with sync info */ +#define METER_SIZE_AUDIOPHILE 60 /* with sync info */ +#define METER_SIZE_SOLO 52 /* with sync info */ +#define METER_SIZE_OZONIC 48 +#define METER_SIZE_NRV10 80 + +/* labels for metering */ +#define ANA_IN "Analog In" +#define ANA_OUT "Analog Out" +#define DIG_IN "Digital In" +#define SPDIF_IN "S/PDIF In" +#define ADAT_IN "ADAT In" +#define DIG_OUT "Digital Out" +#define SPDIF_OUT "S/PDIF Out" +#define ADAT_OUT "ADAT Out" +#define STRM_IN "Stream In" +#define AUX_OUT "Aux Out" +#define HP_OUT "HP Out" +/* for NRV */ +#define UNKNOWN_METER "Unknown" + +struct special_params { + bool is1814; + unsigned int clk_src; + unsigned int dig_in_fmt; + unsigned int dig_out_fmt; + unsigned int clk_lock; + struct snd_ctl_elem_id *ctl_id_sync; +}; + +/* + * For some M-Audio devices, this module just send cue to load firmware. After + * loading, the device generates bus reset and newly detected. + * + * If we make any transactions to load firmware, the operation may failed. + */ +int snd_bebob_maudio_load_firmware(struct fw_unit *unit) +{ + struct fw_device *device = fw_parent_device(unit); + int err, rcode; + u64 date; + __le32 cues[3] = { + cpu_to_le32(MAUDIO_BOOTLOADER_CUE1), + cpu_to_le32(MAUDIO_BOOTLOADER_CUE2), + cpu_to_le32(MAUDIO_BOOTLOADER_CUE3) + }; + + /* check date of software used to build */ + err = snd_bebob_read_block(unit, INFO_OFFSET_SW_DATE, + &date, sizeof(u64)); + if (err < 0) + goto end; + /* + * firmware version 5058 or later has date later than "20070401", but + * 'date' is not null-terminated. + */ + if (date < 0x3230303730343031LL) { + dev_err(&unit->device, + "Use firmware version 5058 or later\n"); + err = -ENOSYS; + goto end; + } + + rcode = fw_run_transaction(device->card, TCODE_WRITE_BLOCK_REQUEST, + device->node_id, device->generation, + device->max_speed, BEBOB_ADDR_REG_REQ, + cues, sizeof(cues)); + if (rcode != RCODE_COMPLETE) { + dev_err(&unit->device, + "Failed to send a cue to load firmware\n"); + err = -EIO; + } +end: + return err; +} + +static inline int +get_meter(struct snd_bebob *bebob, void *buf, unsigned int size) +{ + return snd_fw_transaction(bebob->unit, TCODE_READ_BLOCK_REQUEST, + MAUDIO_SPECIFIC_ADDRESS + METER_OFFSET, + buf, size, 0); +} + +static int +check_clk_sync(struct snd_bebob *bebob, unsigned int size, bool *sync) +{ + int err; + u8 *buf; + + buf = kmalloc(size, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + err = get_meter(bebob, buf, size); + if (err < 0) + goto end; + + /* if synced, this value is the same as SFC of FDF in CIP header */ + *sync = (buf[size - 2] != 0xff); +end: + kfree(buf); + return err; +} + +/* + * dig_fmt: 0x00:S/PDIF, 0x01:ADAT + * clk_lock: 0x00:unlock, 0x01:lock + */ +static int +avc_maudio_set_special_clk(struct snd_bebob *bebob, unsigned int clk_src, + unsigned int dig_in_fmt, unsigned int dig_out_fmt, + unsigned int clk_lock) +{ + struct special_params *params = bebob->maudio_special_quirk; + int err; + u8 *buf; + + if (amdtp_stream_running(&bebob->rx_stream) || + amdtp_stream_running(&bebob->tx_stream)) + return -EBUSY; + + buf = kmalloc(12, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + buf[0] = 0x00; /* CONTROL */ + buf[1] = 0xff; /* UNIT */ + buf[2] = 0x00; /* vendor dependent */ + buf[3] = 0x04; /* company ID high */ + buf[4] = 0x00; /* company ID middle */ + buf[5] = 0x04; /* company ID low */ + buf[6] = 0xff & clk_src; /* clock source */ + buf[7] = 0xff & dig_in_fmt; /* input digital format */ + buf[8] = 0xff & dig_out_fmt; /* output digital format */ + buf[9] = 0xff & clk_lock; /* lock these settings */ + buf[10] = 0x00; /* padding */ + buf[11] = 0x00; /* padding */ + + err = fcp_avc_transaction(bebob->unit, buf, 12, buf, 12, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | + BIT(5) | BIT(6) | BIT(7) | BIT(8) | + BIT(9)); + if ((err > 0) && (err < 10)) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + if (err < 0) + goto end; + + params->clk_src = buf[6]; + params->dig_in_fmt = buf[7]; + params->dig_out_fmt = buf[8]; + params->clk_lock = buf[9]; + + if (params->ctl_id_sync) + snd_ctl_notify(bebob->card, SNDRV_CTL_EVENT_MASK_VALUE, + params->ctl_id_sync); + + err = 0; +end: + kfree(buf); + return err; +} +static void +special_stream_formation_set(struct snd_bebob *bebob) +{ + static const unsigned int ch_table[2][2][3] = { + /* AMDTP_OUT_STREAM */ + { { 6, 6, 4 }, /* SPDIF */ + { 12, 8, 4 } }, /* ADAT */ + /* AMDTP_IN_STREAM */ + { { 10, 10, 2 }, /* SPDIF */ + { 16, 12, 2 } } /* ADAT */ + }; + struct special_params *params = bebob->maudio_special_quirk; + unsigned int i, max; + + max = SND_BEBOB_STRM_FMT_ENTRIES - 1; + if (!params->is1814) + max -= 2; + + for (i = 0; i < max; i++) { + bebob->tx_stream_formations[i + 1].pcm = + ch_table[AMDTP_IN_STREAM][params->dig_in_fmt][i / 2]; + bebob->tx_stream_formations[i + 1].midi = 1; + + bebob->rx_stream_formations[i + 1].pcm = + ch_table[AMDTP_OUT_STREAM][params->dig_out_fmt][i / 2]; + bebob->rx_stream_formations[i + 1].midi = 1; + } +} + +static int add_special_controls(struct snd_bebob *bebob); +int +snd_bebob_maudio_special_discover(struct snd_bebob *bebob, bool is1814) +{ + struct special_params *params; + int err; + + params = kzalloc(sizeof(struct special_params), GFP_KERNEL); + if (params == NULL) + return -ENOMEM; + + mutex_lock(&bebob->mutex); + + bebob->maudio_special_quirk = (void *)params; + params->is1814 = is1814; + + /* initialize these parameters because driver is not allowed to ask */ + bebob->rx_stream.context = ERR_PTR(-1); + bebob->tx_stream.context = ERR_PTR(-1); + err = avc_maudio_set_special_clk(bebob, 0x03, 0x00, 0x00, 0x00); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to initialize clock params: %d\n", err); + goto end; + } + + err = add_special_controls(bebob); + if (err < 0) + goto end; + + special_stream_formation_set(bebob); + + if (params->is1814) { + bebob->midi_input_ports = 1; + bebob->midi_output_ports = 1; + } else { + bebob->midi_input_ports = 2; + bebob->midi_output_ports = 2; + } +end: + if (err < 0) { + kfree(params); + bebob->maudio_special_quirk = NULL; + } + mutex_unlock(&bebob->mutex); + return err; +} + +/* Input plug shows actual rate. Output plug is needless for this purpose. */ +static int special_get_rate(struct snd_bebob *bebob, unsigned int *rate) +{ + int err, trials; + + trials = 0; + do { + err = avc_general_get_sig_fmt(bebob->unit, rate, + AVC_GENERAL_PLUG_DIR_IN, 0); + } while (err == -EAGAIN && ++trials < 3); + + return err; +} +static int special_set_rate(struct snd_bebob *bebob, unsigned int rate) +{ + struct special_params *params = bebob->maudio_special_quirk; + int err; + + err = avc_general_set_sig_fmt(bebob->unit, rate, + AVC_GENERAL_PLUG_DIR_OUT, 0); + if (err < 0) + goto end; + + /* + * Just after changing sampling rate for output, a followed command + * for input is easy to fail. This is a workaround fot this issue. + */ + msleep(100); + + err = avc_general_set_sig_fmt(bebob->unit, rate, + AVC_GENERAL_PLUG_DIR_IN, 0); + if (err < 0) + goto end; + + if (params->ctl_id_sync) + snd_ctl_notify(bebob->card, SNDRV_CTL_EVENT_MASK_VALUE, + params->ctl_id_sync); +end: + return err; +} + +/* Clock source control for special firmware */ +static const char *const special_clk_labels[] = { + SND_BEBOB_CLOCK_INTERNAL " with Digital Mute", "Digital", + "Word Clock", SND_BEBOB_CLOCK_INTERNAL}; +static int special_clk_get(struct snd_bebob *bebob, unsigned int *id) +{ + struct special_params *params = bebob->maudio_special_quirk; + *id = params->clk_src; + return 0; +} +static int special_clk_ctl_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *einf) +{ + return snd_ctl_enum_info(einf, 1, ARRAY_SIZE(special_clk_labels), + special_clk_labels); +} +static int special_clk_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *uval) +{ + struct snd_bebob *bebob = snd_kcontrol_chip(kctl); + struct special_params *params = bebob->maudio_special_quirk; + uval->value.enumerated.item[0] = params->clk_src; + return 0; +} +static int special_clk_ctl_put(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *uval) +{ + struct snd_bebob *bebob = snd_kcontrol_chip(kctl); + struct special_params *params = bebob->maudio_special_quirk; + int err, id; + + id = uval->value.enumerated.item[0]; + if (id >= ARRAY_SIZE(special_clk_labels)) + return -EINVAL; + + mutex_lock(&bebob->mutex); + + err = avc_maudio_set_special_clk(bebob, id, + params->dig_in_fmt, + params->dig_out_fmt, + params->clk_lock); + mutex_unlock(&bebob->mutex); + + if (err >= 0) + err = 1; + + return err; +} +static struct snd_kcontrol_new special_clk_ctl = { + .name = "Clock Source", + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = special_clk_ctl_info, + .get = special_clk_ctl_get, + .put = special_clk_ctl_put +}; + +/* Clock synchronization control for special firmware */ +static int special_sync_ctl_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *einf) +{ + einf->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; + einf->count = 1; + einf->value.integer.min = 0; + einf->value.integer.max = 1; + + return 0; +} +static int special_sync_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *uval) +{ + struct snd_bebob *bebob = snd_kcontrol_chip(kctl); + int err; + bool synced = 0; + + err = check_clk_sync(bebob, METER_SIZE_SPECIAL, &synced); + if (err >= 0) + uval->value.integer.value[0] = synced; + + return 0; +} +static struct snd_kcontrol_new special_sync_ctl = { + .name = "Sync Status", + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READ, + .info = special_sync_ctl_info, + .get = special_sync_ctl_get, +}; + +/* Digital input interface control for special firmware */ +static const char *const special_dig_in_iface_labels[] = { + "S/PDIF Optical", "S/PDIF Coaxial", "ADAT Optical" +}; +static int special_dig_in_iface_ctl_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *einf) +{ + return snd_ctl_enum_info(einf, 1, + ARRAY_SIZE(special_dig_in_iface_labels), + special_dig_in_iface_labels); +} +static int special_dig_in_iface_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *uval) +{ + struct snd_bebob *bebob = snd_kcontrol_chip(kctl); + struct special_params *params = bebob->maudio_special_quirk; + unsigned int dig_in_iface; + int err, val; + + mutex_lock(&bebob->mutex); + + err = avc_audio_get_selector(bebob->unit, 0x00, 0x04, + &dig_in_iface); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get digital input interface: %d\n", err); + goto end; + } + + /* encoded id for user value */ + val = (params->dig_in_fmt << 1) | (dig_in_iface & 0x01); + + /* for ADAT Optical */ + if (val > 2) + val = 2; + + uval->value.enumerated.item[0] = val; +end: + mutex_unlock(&bebob->mutex); + return err; +} +static int special_dig_in_iface_ctl_set(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *uval) +{ + struct snd_bebob *bebob = snd_kcontrol_chip(kctl); + struct special_params *params = bebob->maudio_special_quirk; + unsigned int id, dig_in_fmt, dig_in_iface; + int err; + + id = uval->value.enumerated.item[0]; + if (id >= ARRAY_SIZE(special_dig_in_iface_labels)) + return -EINVAL; + + /* decode user value */ + dig_in_fmt = (id >> 1) & 0x01; + dig_in_iface = id & 0x01; + + mutex_lock(&bebob->mutex); + + err = avc_maudio_set_special_clk(bebob, + params->clk_src, + dig_in_fmt, + params->dig_out_fmt, + params->clk_lock); + if (err < 0) + goto end; + + /* For ADAT, optical interface is only available. */ + if (params->dig_in_fmt > 0) { + err = 1; + goto end; + } + + /* For S/PDIF, optical/coaxial interfaces are selectable. */ + err = avc_audio_set_selector(bebob->unit, 0x00, 0x04, dig_in_iface); + if (err < 0) + dev_err(&bebob->unit->device, + "fail to set digital input interface: %d\n", err); + err = 1; +end: + special_stream_formation_set(bebob); + mutex_unlock(&bebob->mutex); + return err; +} +static struct snd_kcontrol_new special_dig_in_iface_ctl = { + .name = "Digital Input Interface", + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = special_dig_in_iface_ctl_info, + .get = special_dig_in_iface_ctl_get, + .put = special_dig_in_iface_ctl_set +}; + +/* Digital output interface control for special firmware */ +static const char *const special_dig_out_iface_labels[] = { + "S/PDIF Optical and Coaxial", "ADAT Optical" +}; +static int special_dig_out_iface_ctl_info(struct snd_kcontrol *kctl, + struct snd_ctl_elem_info *einf) +{ + return snd_ctl_enum_info(einf, 1, + ARRAY_SIZE(special_dig_out_iface_labels), + special_dig_out_iface_labels); +} +static int special_dig_out_iface_ctl_get(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *uval) +{ + struct snd_bebob *bebob = snd_kcontrol_chip(kctl); + struct special_params *params = bebob->maudio_special_quirk; + mutex_lock(&bebob->mutex); + uval->value.enumerated.item[0] = params->dig_out_fmt; + mutex_unlock(&bebob->mutex); + return 0; +} +static int special_dig_out_iface_ctl_set(struct snd_kcontrol *kctl, + struct snd_ctl_elem_value *uval) +{ + struct snd_bebob *bebob = snd_kcontrol_chip(kctl); + struct special_params *params = bebob->maudio_special_quirk; + unsigned int id; + int err; + + id = uval->value.enumerated.item[0]; + if (id >= ARRAY_SIZE(special_dig_out_iface_labels)) + return -EINVAL; + + mutex_lock(&bebob->mutex); + + err = avc_maudio_set_special_clk(bebob, + params->clk_src, + params->dig_in_fmt, + id, params->clk_lock); + if (err >= 0) { + special_stream_formation_set(bebob); + err = 1; + } + + mutex_unlock(&bebob->mutex); + return err; +} +static struct snd_kcontrol_new special_dig_out_iface_ctl = { + .name = "Digital Output Interface", + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, + .info = special_dig_out_iface_ctl_info, + .get = special_dig_out_iface_ctl_get, + .put = special_dig_out_iface_ctl_set +}; + +static int add_special_controls(struct snd_bebob *bebob) +{ + struct snd_kcontrol *kctl; + struct special_params *params = bebob->maudio_special_quirk; + int err; + + kctl = snd_ctl_new1(&special_clk_ctl, bebob); + err = snd_ctl_add(bebob->card, kctl); + if (err < 0) + goto end; + + kctl = snd_ctl_new1(&special_sync_ctl, bebob); + err = snd_ctl_add(bebob->card, kctl); + if (err < 0) + goto end; + params->ctl_id_sync = &kctl->id; + + kctl = snd_ctl_new1(&special_dig_in_iface_ctl, bebob); + err = snd_ctl_add(bebob->card, kctl); + if (err < 0) + goto end; + + kctl = snd_ctl_new1(&special_dig_out_iface_ctl, bebob); + err = snd_ctl_add(bebob->card, kctl); +end: + return err; +} + +/* Hardware metering for special firmware */ +static const char *const special_meter_labels[] = { + ANA_IN, ANA_IN, ANA_IN, ANA_IN, + SPDIF_IN, + ADAT_IN, ADAT_IN, ADAT_IN, ADAT_IN, + ANA_OUT, ANA_OUT, + SPDIF_OUT, + ADAT_OUT, ADAT_OUT, ADAT_OUT, ADAT_OUT, + HP_OUT, HP_OUT, + AUX_OUT +}; +static int +special_meter_get(struct snd_bebob *bebob, u32 *target, unsigned int size) +{ + u16 *buf; + unsigned int i, c, channels; + int err; + + channels = ARRAY_SIZE(special_meter_labels) * 2; + if (size < channels * sizeof(u32)) + return -EINVAL; + + /* omit last 4 bytes because it's clock info. */ + buf = kmalloc(METER_SIZE_SPECIAL - 4, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + err = get_meter(bebob, (void *)buf, METER_SIZE_SPECIAL - 4); + if (err < 0) + goto end; + + /* Its format is u16 and some channels are unknown. */ + i = 0; + for (c = 2; c < channels + 2; c++) + target[i++] = be16_to_cpu(buf[c]) << 16; +end: + kfree(buf); + return err; +} + +/* last 4 bytes are omitted because it's clock info. */ +static const char *const fw410_meter_labels[] = { + ANA_IN, DIG_IN, + ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT, DIG_OUT, + HP_OUT +}; +static const char *const audiophile_meter_labels[] = { + ANA_IN, DIG_IN, + ANA_OUT, ANA_OUT, DIG_OUT, + HP_OUT, AUX_OUT, +}; +static const char *const solo_meter_labels[] = { + ANA_IN, DIG_IN, + STRM_IN, STRM_IN, + ANA_OUT, DIG_OUT +}; + +/* no clock info */ +static const char *const ozonic_meter_labels[] = { + ANA_IN, ANA_IN, + STRM_IN, STRM_IN, + ANA_OUT, ANA_OUT +}; +/* TODO: need testers. these positions are based on authour's assumption */ +static const char *const nrv10_meter_labels[] = { + ANA_IN, ANA_IN, ANA_IN, ANA_IN, + DIG_IN, + ANA_OUT, ANA_OUT, ANA_OUT, ANA_OUT, + DIG_IN +}; +static int +normal_meter_get(struct snd_bebob *bebob, u32 *buf, unsigned int size) +{ + struct snd_bebob_meter_spec *spec = bebob->spec->meter; + unsigned int c, channels; + int err; + + channels = spec->num * 2; + if (size < channels * sizeof(u32)) + return -EINVAL; + + err = get_meter(bebob, (void *)buf, size); + if (err < 0) + goto end; + + for (c = 0; c < channels; c++) + be32_to_cpus(&buf[c]); + + /* swap stream channels because inverted */ + if (spec->labels == solo_meter_labels) { + swap(buf[4], buf[6]); + swap(buf[5], buf[7]); + } +end: + return err; +} + +/* for special customized devices */ +static struct snd_bebob_rate_spec special_rate_spec = { + .get = &special_get_rate, + .set = &special_set_rate, +}; +static struct snd_bebob_clock_spec special_clk_spec = { + .num = ARRAY_SIZE(special_clk_labels), + .labels = special_clk_labels, + .get = &special_clk_get, +}; +static struct snd_bebob_meter_spec special_meter_spec = { + .num = ARRAY_SIZE(special_meter_labels), + .labels = special_meter_labels, + .get = &special_meter_get +}; +struct snd_bebob_spec maudio_special_spec = { + .clock = &special_clk_spec, + .rate = &special_rate_spec, + .meter = &special_meter_spec +}; + +/* Firewire 410 specification */ +static struct snd_bebob_rate_spec usual_rate_spec = { + .get = &snd_bebob_stream_get_rate, + .set = &snd_bebob_stream_set_rate, +}; +static struct snd_bebob_meter_spec fw410_meter_spec = { + .num = ARRAY_SIZE(fw410_meter_labels), + .labels = fw410_meter_labels, + .get = &normal_meter_get +}; +struct snd_bebob_spec maudio_fw410_spec = { + .clock = NULL, + .rate = &usual_rate_spec, + .meter = &fw410_meter_spec +}; + +/* Firewire Audiophile specification */ +static struct snd_bebob_meter_spec audiophile_meter_spec = { + .num = ARRAY_SIZE(audiophile_meter_labels), + .labels = audiophile_meter_labels, + .get = &normal_meter_get +}; +struct snd_bebob_spec maudio_audiophile_spec = { + .clock = NULL, + .rate = &usual_rate_spec, + .meter = &audiophile_meter_spec +}; + +/* Firewire Solo specification */ +static struct snd_bebob_meter_spec solo_meter_spec = { + .num = ARRAY_SIZE(solo_meter_labels), + .labels = solo_meter_labels, + .get = &normal_meter_get +}; +struct snd_bebob_spec maudio_solo_spec = { + .clock = NULL, + .rate = &usual_rate_spec, + .meter = &solo_meter_spec +}; + +/* Ozonic specification */ +static struct snd_bebob_meter_spec ozonic_meter_spec = { + .num = ARRAY_SIZE(ozonic_meter_labels), + .labels = ozonic_meter_labels, + .get = &normal_meter_get +}; +struct snd_bebob_spec maudio_ozonic_spec = { + .clock = NULL, + .rate = &usual_rate_spec, + .meter = &ozonic_meter_spec +}; + +/* NRV10 specification */ +static struct snd_bebob_meter_spec nrv10_meter_spec = { + .num = ARRAY_SIZE(nrv10_meter_labels), + .labels = nrv10_meter_labels, + .get = &normal_meter_get +}; +struct snd_bebob_spec maudio_nrv10_spec = { + .clock = NULL, + .rate = &usual_rate_spec, + .meter = &nrv10_meter_spec +}; diff --git a/kernel/sound/firewire/bebob/bebob_midi.c b/kernel/sound/firewire/bebob/bebob_midi.c new file mode 100644 index 000000000..63343d578 --- /dev/null +++ b/kernel/sound/firewire/bebob/bebob_midi.c @@ -0,0 +1,168 @@ +/* + * bebob_midi.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "bebob.h" + +static int midi_capture_open(struct snd_rawmidi_substream *substream) +{ + struct snd_bebob *bebob = substream->rmidi->private_data; + int err; + + err = snd_bebob_stream_lock_try(bebob); + if (err < 0) + goto end; + + atomic_inc(&bebob->capture_substreams); + err = snd_bebob_stream_start_duplex(bebob, 0); + if (err < 0) + snd_bebob_stream_lock_release(bebob); +end: + return err; +} + +static int midi_playback_open(struct snd_rawmidi_substream *substream) +{ + struct snd_bebob *bebob = substream->rmidi->private_data; + int err; + + err = snd_bebob_stream_lock_try(bebob); + if (err < 0) + goto end; + + atomic_inc(&bebob->playback_substreams); + err = snd_bebob_stream_start_duplex(bebob, 0); + if (err < 0) + snd_bebob_stream_lock_release(bebob); +end: + return err; +} + +static int midi_capture_close(struct snd_rawmidi_substream *substream) +{ + struct snd_bebob *bebob = substream->rmidi->private_data; + + atomic_dec(&bebob->capture_substreams); + snd_bebob_stream_stop_duplex(bebob); + + snd_bebob_stream_lock_release(bebob); + return 0; +} + +static int midi_playback_close(struct snd_rawmidi_substream *substream) +{ + struct snd_bebob *bebob = substream->rmidi->private_data; + + atomic_dec(&bebob->playback_substreams); + snd_bebob_stream_stop_duplex(bebob); + + snd_bebob_stream_lock_release(bebob); + return 0; +} + +static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up) +{ + struct snd_bebob *bebob = substrm->rmidi->private_data; + unsigned long flags; + + spin_lock_irqsave(&bebob->lock, flags); + + if (up) + amdtp_stream_midi_trigger(&bebob->tx_stream, + substrm->number, substrm); + else + amdtp_stream_midi_trigger(&bebob->tx_stream, + substrm->number, NULL); + + spin_unlock_irqrestore(&bebob->lock, flags); +} + +static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up) +{ + struct snd_bebob *bebob = substrm->rmidi->private_data; + unsigned long flags; + + spin_lock_irqsave(&bebob->lock, flags); + + if (up) + amdtp_stream_midi_trigger(&bebob->rx_stream, + substrm->number, substrm); + else + amdtp_stream_midi_trigger(&bebob->rx_stream, + substrm->number, NULL); + + spin_unlock_irqrestore(&bebob->lock, flags); +} + +static struct snd_rawmidi_ops midi_capture_ops = { + .open = midi_capture_open, + .close = midi_capture_close, + .trigger = midi_capture_trigger, +}; + +static struct snd_rawmidi_ops midi_playback_ops = { + .open = midi_playback_open, + .close = midi_playback_close, + .trigger = midi_playback_trigger, +}; + +static void set_midi_substream_names(struct snd_bebob *bebob, + struct snd_rawmidi_str *str) +{ + struct snd_rawmidi_substream *subs; + + list_for_each_entry(subs, &str->substreams, list) { + snprintf(subs->name, sizeof(subs->name), + "%s MIDI %d", + bebob->card->shortname, subs->number + 1); + } +} + +int snd_bebob_create_midi_devices(struct snd_bebob *bebob) +{ + struct snd_rawmidi *rmidi; + struct snd_rawmidi_str *str; + int err; + + /* create midi ports */ + err = snd_rawmidi_new(bebob->card, bebob->card->driver, 0, + bebob->midi_output_ports, bebob->midi_input_ports, + &rmidi); + if (err < 0) + return err; + + snprintf(rmidi->name, sizeof(rmidi->name), + "%s MIDI", bebob->card->shortname); + rmidi->private_data = bebob; + + if (bebob->midi_input_ports > 0) { + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; + + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, + &midi_capture_ops); + + str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]; + + set_midi_substream_names(bebob, str); + } + + if (bebob->midi_output_ports > 0) { + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; + + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, + &midi_playback_ops); + + str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]; + + set_midi_substream_names(bebob, str); + } + + if ((bebob->midi_output_ports > 0) && (bebob->midi_input_ports > 0)) + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX; + + return 0; +} diff --git a/kernel/sound/firewire/bebob/bebob_pcm.c b/kernel/sound/firewire/bebob/bebob_pcm.c new file mode 100644 index 000000000..4a55561ed --- /dev/null +++ b/kernel/sound/firewire/bebob/bebob_pcm.c @@ -0,0 +1,378 @@ +/* + * bebob_pcm.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./bebob.h" + +static int +hw_rule_rate(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) +{ + struct snd_bebob_stream_formation *formations = rule->private; + struct snd_interval *r = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + const struct snd_interval *c = + hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS); + struct snd_interval t = { + .min = UINT_MAX, .max = 0, .integer = 1 + }; + unsigned int i; + + for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) { + /* entry is invalid */ + if (formations[i].pcm == 0) + continue; + + if (!snd_interval_test(c, formations[i].pcm)) + continue; + + t.min = min(t.min, snd_bebob_rate_table[i]); + t.max = max(t.max, snd_bebob_rate_table[i]); + + } + return snd_interval_refine(r, &t); +} + +static int +hw_rule_channels(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) +{ + struct snd_bebob_stream_formation *formations = rule->private; + struct snd_interval *c = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + const struct snd_interval *r = + hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval t = { + .min = UINT_MAX, .max = 0, .integer = 1 + }; + + unsigned int i; + + for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) { + /* entry is invalid */ + if (formations[i].pcm == 0) + continue; + + if (!snd_interval_test(r, snd_bebob_rate_table[i])) + continue; + + t.min = min(t.min, formations[i].pcm); + t.max = max(t.max, formations[i].pcm); + } + + return snd_interval_refine(c, &t); +} + +static void +limit_channels_and_rates(struct snd_pcm_hardware *hw, + struct snd_bebob_stream_formation *formations) +{ + unsigned int i; + + hw->channels_min = UINT_MAX; + hw->channels_max = 0; + + hw->rate_min = UINT_MAX; + hw->rate_max = 0; + hw->rates = 0; + + for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) { + /* entry has no PCM channels */ + if (formations[i].pcm == 0) + continue; + + hw->channels_min = min(hw->channels_min, formations[i].pcm); + hw->channels_max = max(hw->channels_max, formations[i].pcm); + + hw->rate_min = min(hw->rate_min, snd_bebob_rate_table[i]); + hw->rate_max = max(hw->rate_max, snd_bebob_rate_table[i]); + hw->rates |= snd_pcm_rate_to_rate_bit(snd_bebob_rate_table[i]); + } +} + +static void +limit_period_and_buffer(struct snd_pcm_hardware *hw) +{ + hw->periods_min = 2; /* SNDRV_PCM_INFO_BATCH */ + hw->periods_max = UINT_MAX; + + hw->period_bytes_min = 4 * hw->channels_max; /* bytes for a frame */ + + /* Just to prevent from allocating much pages. */ + hw->period_bytes_max = hw->period_bytes_min * 2048; + hw->buffer_bytes_max = hw->period_bytes_max * hw->periods_min; +} + +static int +pcm_init_hw_params(struct snd_bebob *bebob, + struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct amdtp_stream *s; + struct snd_bebob_stream_formation *formations; + int err; + + runtime->hw.info = SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_JOINT_DUPLEX | + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID; + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { + runtime->hw.formats = AMDTP_IN_PCM_FORMAT_BITS; + s = &bebob->tx_stream; + formations = bebob->tx_stream_formations; + } else { + runtime->hw.formats = AMDTP_OUT_PCM_FORMAT_BITS; + s = &bebob->rx_stream; + formations = bebob->rx_stream_formations; + } + + limit_channels_and_rates(&runtime->hw, formations); + limit_period_and_buffer(&runtime->hw); + + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + hw_rule_channels, formations, + SNDRV_PCM_HW_PARAM_RATE, -1); + if (err < 0) + goto end; + + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + hw_rule_rate, formations, + SNDRV_PCM_HW_PARAM_CHANNELS, -1); + if (err < 0) + goto end; + + err = amdtp_stream_add_pcm_hw_constraints(s, runtime); +end: + return err; +} + +static int +pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_bebob *bebob = substream->private_data; + struct snd_bebob_rate_spec *spec = bebob->spec->rate; + unsigned int sampling_rate; + bool internal; + int err; + + err = snd_bebob_stream_lock_try(bebob); + if (err < 0) + goto end; + + err = pcm_init_hw_params(bebob, substream); + if (err < 0) + goto err_locked; + + err = snd_bebob_stream_check_internal_clock(bebob, &internal); + if (err < 0) + goto err_locked; + + /* + * When source of clock is internal or any PCM stream are running, + * the available sampling rate is limited at current sampling rate. + */ + if (!internal || + amdtp_stream_pcm_running(&bebob->tx_stream) || + amdtp_stream_pcm_running(&bebob->rx_stream)) { + err = spec->get(bebob, &sampling_rate); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get sampling rate: %d\n", err); + goto err_locked; + } + + substream->runtime->hw.rate_min = sampling_rate; + substream->runtime->hw.rate_max = sampling_rate; + } + + snd_pcm_set_sync(substream); +end: + return err; +err_locked: + snd_bebob_stream_lock_release(bebob); + return err; +} + +static int +pcm_close(struct snd_pcm_substream *substream) +{ + struct snd_bebob *bebob = substream->private_data; + snd_bebob_stream_lock_release(bebob); + return 0; +} + +static int +pcm_capture_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_bebob *bebob = substream->private_data; + + if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) + atomic_inc(&bebob->capture_substreams); + amdtp_stream_set_pcm_format(&bebob->tx_stream, + params_format(hw_params)); + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); +} +static int +pcm_playback_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_bebob *bebob = substream->private_data; + + if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) + atomic_inc(&bebob->playback_substreams); + amdtp_stream_set_pcm_format(&bebob->rx_stream, + params_format(hw_params)); + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); +} + +static int +pcm_capture_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_bebob *bebob = substream->private_data; + + if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) + atomic_dec(&bebob->capture_substreams); + + snd_bebob_stream_stop_duplex(bebob); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} +static int +pcm_playback_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_bebob *bebob = substream->private_data; + + if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) + atomic_dec(&bebob->playback_substreams); + + snd_bebob_stream_stop_duplex(bebob); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} + +static int +pcm_capture_prepare(struct snd_pcm_substream *substream) +{ + struct snd_bebob *bebob = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + int err; + + err = snd_bebob_stream_start_duplex(bebob, runtime->rate); + if (err >= 0) + amdtp_stream_pcm_prepare(&bebob->tx_stream); + + return err; +} +static int +pcm_playback_prepare(struct snd_pcm_substream *substream) +{ + struct snd_bebob *bebob = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + int err; + + err = snd_bebob_stream_start_duplex(bebob, runtime->rate); + if (err >= 0) + amdtp_stream_pcm_prepare(&bebob->rx_stream); + + return err; +} + +static int +pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_bebob *bebob = substream->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + amdtp_stream_pcm_trigger(&bebob->tx_stream, substream); + break; + case SNDRV_PCM_TRIGGER_STOP: + amdtp_stream_pcm_trigger(&bebob->tx_stream, NULL); + break; + default: + return -EINVAL; + } + + return 0; +} +static int +pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_bebob *bebob = substream->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + amdtp_stream_pcm_trigger(&bebob->rx_stream, substream); + break; + case SNDRV_PCM_TRIGGER_STOP: + amdtp_stream_pcm_trigger(&bebob->rx_stream, NULL); + break; + default: + return -EINVAL; + } + + return 0; +} + +static snd_pcm_uframes_t +pcm_capture_pointer(struct snd_pcm_substream *sbstrm) +{ + struct snd_bebob *bebob = sbstrm->private_data; + return amdtp_stream_pcm_pointer(&bebob->tx_stream); +} +static snd_pcm_uframes_t +pcm_playback_pointer(struct snd_pcm_substream *sbstrm) +{ + struct snd_bebob *bebob = sbstrm->private_data; + return amdtp_stream_pcm_pointer(&bebob->rx_stream); +} + +static const struct snd_pcm_ops pcm_capture_ops = { + .open = pcm_open, + .close = pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = pcm_capture_hw_params, + .hw_free = pcm_capture_hw_free, + .prepare = pcm_capture_prepare, + .trigger = pcm_capture_trigger, + .pointer = pcm_capture_pointer, + .page = snd_pcm_lib_get_vmalloc_page, +}; +static const struct snd_pcm_ops pcm_playback_ops = { + .open = pcm_open, + .close = pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = pcm_playback_hw_params, + .hw_free = pcm_playback_hw_free, + .prepare = pcm_playback_prepare, + .trigger = pcm_playback_trigger, + .pointer = pcm_playback_pointer, + .page = snd_pcm_lib_get_vmalloc_page, + .mmap = snd_pcm_lib_mmap_vmalloc, +}; + +int snd_bebob_create_pcm_devices(struct snd_bebob *bebob) +{ + struct snd_pcm *pcm; + int err; + + err = snd_pcm_new(bebob->card, bebob->card->driver, 0, 1, 1, &pcm); + if (err < 0) + goto end; + + pcm->private_data = bebob; + snprintf(pcm->name, sizeof(pcm->name), + "%s PCM", bebob->card->shortname); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_playback_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_capture_ops); +end: + return err; +} diff --git a/kernel/sound/firewire/bebob/bebob_proc.c b/kernel/sound/firewire/bebob/bebob_proc.c new file mode 100644 index 000000000..335da6450 --- /dev/null +++ b/kernel/sound/firewire/bebob/bebob_proc.c @@ -0,0 +1,196 @@ +/* + * bebob_proc.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./bebob.h" + +/* contents of information register */ +struct hw_info { + u64 manufacturer; + u32 protocol_ver; + u32 bld_ver; + u32 guid[2]; + u32 model_id; + u32 model_rev; + u64 fw_date; + u64 fw_time; + u32 fw_id; + u32 fw_ver; + u32 base_addr; + u32 max_size; + u64 bld_date; + u64 bld_time; +/* may not used in product + u64 dbg_date; + u64 dbg_time; + u32 dbg_id; + u32 dbg_version; +*/ +} __packed; + +static void +proc_read_hw_info(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_bebob *bebob = entry->private_data; + struct hw_info *info; + + info = kzalloc(sizeof(struct hw_info), GFP_KERNEL); + if (info == NULL) + return; + + if (snd_bebob_read_block(bebob->unit, 0, + info, sizeof(struct hw_info)) < 0) + goto end; + + snd_iprintf(buffer, "Manufacturer:\t%.8s\n", + (char *)&info->manufacturer); + snd_iprintf(buffer, "Protocol Ver:\t%d\n", info->protocol_ver); + snd_iprintf(buffer, "Build Ver:\t%d\n", info->bld_ver); + snd_iprintf(buffer, "GUID:\t\t0x%.8X%.8X\n", + info->guid[0], info->guid[1]); + snd_iprintf(buffer, "Model ID:\t0x%02X\n", info->model_id); + snd_iprintf(buffer, "Model Rev:\t%d\n", info->model_rev); + snd_iprintf(buffer, "Firmware Date:\t%.8s\n", (char *)&info->fw_date); + snd_iprintf(buffer, "Firmware Time:\t%.8s\n", (char *)&info->fw_time); + snd_iprintf(buffer, "Firmware ID:\t0x%X\n", info->fw_id); + snd_iprintf(buffer, "Firmware Ver:\t%d\n", info->fw_ver); + snd_iprintf(buffer, "Base Addr:\t0x%X\n", info->base_addr); + snd_iprintf(buffer, "Max Size:\t%d\n", info->max_size); + snd_iprintf(buffer, "Loader Date:\t%.8s\n", (char *)&info->bld_date); + snd_iprintf(buffer, "Loader Time:\t%.8s\n", (char *)&info->bld_time); + +end: + kfree(info); +} + +static void +proc_read_meters(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_bebob *bebob = entry->private_data; + struct snd_bebob_meter_spec *spec = bebob->spec->meter; + u32 *buf; + unsigned int i, c, channels, size; + + if (spec == NULL) + return; + + channels = spec->num * 2; + size = channels * sizeof(u32); + buf = kmalloc(size, GFP_KERNEL); + if (buf == NULL) + return; + + if (spec->get(bebob, buf, size) < 0) + goto end; + + for (i = 0, c = 1; i < channels; i++) { + snd_iprintf(buffer, "%s %d:\t%d\n", + spec->labels[i / 2], c++, buf[i]); + if ((i + 1 < channels - 1) && + (strcmp(spec->labels[i / 2], + spec->labels[(i + 1) / 2]) != 0)) + c = 1; + } +end: + kfree(buf); +} + +static void +proc_read_formation(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_bebob *bebob = entry->private_data; + struct snd_bebob_stream_formation *formation; + unsigned int i; + + snd_iprintf(buffer, "Output Stream from device:\n"); + snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n"); + formation = bebob->tx_stream_formations; + for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) { + snd_iprintf(buffer, + "\t%d\t%d\t%d\n", snd_bebob_rate_table[i], + formation[i].pcm, formation[i].midi); + } + + snd_iprintf(buffer, "Input Stream to device:\n"); + snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n"); + formation = bebob->rx_stream_formations; + for (i = 0; i < SND_BEBOB_STRM_FMT_ENTRIES; i++) { + snd_iprintf(buffer, + "\t%d\t%d\t%d\n", snd_bebob_rate_table[i], + formation[i].pcm, formation[i].midi); + } +} + +static void +proc_read_clock(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_bebob *bebob = entry->private_data; + struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate; + struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; + unsigned int rate, id; + bool internal; + + if (rate_spec->get(bebob, &rate) >= 0) + snd_iprintf(buffer, "Sampling rate: %d\n", rate); + + if (clk_spec) { + if (clk_spec->get(bebob, &id) >= 0) + snd_iprintf(buffer, "Clock Source: %s\n", + clk_spec->labels[id]); + } else { + if (snd_bebob_stream_check_internal_clock(bebob, + &internal) >= 0) + snd_iprintf(buffer, "Clock Source: %s (MSU-dest: %d)\n", + (internal) ? "Internal" : "External", + bebob->sync_input_plug); + } +} + +static void +add_node(struct snd_bebob *bebob, struct snd_info_entry *root, const char *name, + void (*op)(struct snd_info_entry *e, struct snd_info_buffer *b)) +{ + struct snd_info_entry *entry; + + entry = snd_info_create_card_entry(bebob->card, name, root); + if (entry == NULL) + return; + + snd_info_set_text_ops(entry, bebob, op); + if (snd_info_register(entry) < 0) + snd_info_free_entry(entry); +} + +void snd_bebob_proc_init(struct snd_bebob *bebob) +{ + struct snd_info_entry *root; + + /* + * All nodes are automatically removed at snd_card_disconnect(), + * by following to link list. + */ + root = snd_info_create_card_entry(bebob->card, "firewire", + bebob->card->proc_root); + if (root == NULL) + return; + root->mode = S_IFDIR | S_IRUGO | S_IXUGO; + if (snd_info_register(root) < 0) { + snd_info_free_entry(root); + return; + } + + add_node(bebob, root, "clock", proc_read_clock); + add_node(bebob, root, "firmware", proc_read_hw_info); + add_node(bebob, root, "formation", proc_read_formation); + + if (bebob->spec->meter != NULL) + add_node(bebob, root, "meter", proc_read_meters); +} diff --git a/kernel/sound/firewire/bebob/bebob_stream.c b/kernel/sound/firewire/bebob/bebob_stream.c new file mode 100644 index 000000000..98e4fc812 --- /dev/null +++ b/kernel/sound/firewire/bebob/bebob_stream.c @@ -0,0 +1,1018 @@ +/* + * bebob_stream.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./bebob.h" + +#define CALLBACK_TIMEOUT 1000 +#define FW_ISO_RESOURCE_DELAY 1000 + +/* + * NOTE; + * For BeBoB streams, Both of input and output CMP connection are important. + * + * For most devices, each CMP connection starts to transmit/receive a + * corresponding stream. But for a few devices, both of CMP connection needs + * to start transmitting stream. An example is 'M-Audio Firewire 410'. + */ + +/* 128 is an arbitrary length but it seems to be enough */ +#define FORMAT_MAXIMUM_LENGTH 128 + +const unsigned int snd_bebob_rate_table[SND_BEBOB_STRM_FMT_ENTRIES] = { + [0] = 32000, + [1] = 44100, + [2] = 48000, + [3] = 88200, + [4] = 96000, + [5] = 176400, + [6] = 192000, +}; + +/* + * See: Table 51: Extended Stream Format Info ‘Sampling Frequency’ + * in Additional AVC commands (Nov 2003, BridgeCo) + */ +static const unsigned int bridgeco_freq_table[] = { + [0] = 0x02, + [1] = 0x03, + [2] = 0x04, + [3] = 0x0a, + [4] = 0x05, + [5] = 0x06, + [6] = 0x07, +}; + +static unsigned int +get_formation_index(unsigned int rate) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(snd_bebob_rate_table); i++) { + if (snd_bebob_rate_table[i] == rate) + return i; + } + return -EINVAL; +} + +int +snd_bebob_stream_get_rate(struct snd_bebob *bebob, unsigned int *curr_rate) +{ + unsigned int tx_rate, rx_rate, trials; + int err; + + trials = 0; + do { + err = avc_general_get_sig_fmt(bebob->unit, &tx_rate, + AVC_GENERAL_PLUG_DIR_OUT, 0); + } while (err == -EAGAIN && ++trials < 3); + if (err < 0) + goto end; + + trials = 0; + do { + err = avc_general_get_sig_fmt(bebob->unit, &rx_rate, + AVC_GENERAL_PLUG_DIR_IN, 0); + } while (err == -EAGAIN && ++trials < 3); + if (err < 0) + goto end; + + *curr_rate = rx_rate; + if (rx_rate == tx_rate) + goto end; + + /* synchronize receive stream rate to transmit stream rate */ + err = avc_general_set_sig_fmt(bebob->unit, rx_rate, + AVC_GENERAL_PLUG_DIR_IN, 0); +end: + return err; +} + +int +snd_bebob_stream_set_rate(struct snd_bebob *bebob, unsigned int rate) +{ + int err; + + err = avc_general_set_sig_fmt(bebob->unit, rate, + AVC_GENERAL_PLUG_DIR_OUT, 0); + if (err < 0) + goto end; + + err = avc_general_set_sig_fmt(bebob->unit, rate, + AVC_GENERAL_PLUG_DIR_IN, 0); + if (err < 0) + goto end; + + /* + * Some devices need a bit time for transition. + * 300msec is got by some experiments. + */ + msleep(300); +end: + return err; +} + +int +snd_bebob_stream_check_internal_clock(struct snd_bebob *bebob, bool *internal) +{ + struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; + u8 addr[AVC_BRIDGECO_ADDR_BYTES], input[7]; + unsigned int id; + int err = 0; + + *internal = false; + + /* 1.The device has its own operation to switch source of clock */ + if (clk_spec) { + err = clk_spec->get(bebob, &id); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get clock source: %d\n", err); + goto end; + } + + if (id >= clk_spec->num) { + dev_err(&bebob->unit->device, + "clock source %d out of range 0..%d\n", + id, clk_spec->num - 1); + err = -EIO; + goto end; + } + + if (strncmp(clk_spec->labels[id], SND_BEBOB_CLOCK_INTERNAL, + strlen(SND_BEBOB_CLOCK_INTERNAL)) == 0) + *internal = true; + + goto end; + } + + /* + * 2.The device don't support to switch source of clock then assumed + * to use internal clock always + */ + if (bebob->sync_input_plug < 0) { + *internal = true; + goto end; + } + + /* + * 3.The device supports to switch source of clock by an usual way. + * Let's check input for 'Music Sub Unit Sync Input' plug. + */ + avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, + bebob->sync_input_plug); + err = avc_bridgeco_get_plug_input(bebob->unit, addr, input); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get an input for MSU in plug %d: %d\n", + bebob->sync_input_plug, err); + goto end; + } + + /* + * If there are no input plugs, all of fields are 0xff. + * Here check the first field. This field is used for direction. + */ + if (input[0] == 0xff) { + *internal = true; + goto end; + } + + /* + * If source of clock is internal CSR, Music Sub Unit Sync Input is + * a destination of Music Sub Unit Sync Output. + */ + *internal = ((input[0] == AVC_BRIDGECO_PLUG_DIR_OUT) && + (input[1] == AVC_BRIDGECO_PLUG_MODE_SUBUNIT) && + (input[2] == 0x0c) && + (input[3] == 0x00)); +end: + return err; +} + +static unsigned int +map_data_channels(struct snd_bebob *bebob, struct amdtp_stream *s) +{ + unsigned int sec, sections, ch, channels; + unsigned int pcm, midi, location; + unsigned int stm_pos, sec_loc, pos; + u8 *buf, addr[AVC_BRIDGECO_ADDR_BYTES], type; + enum avc_bridgeco_plug_dir dir; + int err; + + /* + * The length of return value of this command cannot be expected. Here + * use the maximum length of FCP. + */ + buf = kzalloc(256, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + if (s == &bebob->tx_stream) + dir = AVC_BRIDGECO_PLUG_DIR_OUT; + else + dir = AVC_BRIDGECO_PLUG_DIR_IN; + + avc_bridgeco_fill_unit_addr(addr, dir, AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); + err = avc_bridgeco_get_plug_ch_pos(bebob->unit, addr, buf, 256); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get channel position for isoc %s plug 0: %d\n", + (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : "out", + err); + goto end; + } + pos = 0; + + /* positions in I/O buffer */ + pcm = 0; + midi = 0; + + /* the number of sections in AMDTP packet */ + sections = buf[pos++]; + + for (sec = 0; sec < sections; sec++) { + /* type of this section */ + avc_bridgeco_fill_unit_addr(addr, dir, + AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); + err = avc_bridgeco_get_plug_section_type(bebob->unit, addr, + sec, &type); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get section type for isoc %s plug 0: %d\n", + (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : + "out", + err); + goto end; + } + /* NoType */ + if (type == 0xff) { + err = -ENOSYS; + goto end; + } + + /* the number of channels in this section */ + channels = buf[pos++]; + + for (ch = 0; ch < channels; ch++) { + /* position of this channel in AMDTP packet */ + stm_pos = buf[pos++] - 1; + /* location of this channel in this section */ + sec_loc = buf[pos++] - 1; + + /* + * Basically the number of location is within the + * number of channels in this section. But some models + * of M-Audio don't follow this. Its location for MIDI + * is the position of MIDI channels in AMDTP packet. + */ + if (sec_loc >= channels) + sec_loc = ch; + + switch (type) { + /* for MIDI conformant data channel */ + case 0x0a: + /* AMDTP_MAX_CHANNELS_FOR_MIDI is 1. */ + if ((midi > 0) && (stm_pos != midi)) { + err = -ENOSYS; + goto end; + } + s->midi_position = stm_pos; + midi = stm_pos; + break; + /* for PCM data channel */ + case 0x01: /* Headphone */ + case 0x02: /* Microphone */ + case 0x03: /* Line */ + case 0x04: /* SPDIF */ + case 0x05: /* ADAT */ + case 0x06: /* TDIF */ + case 0x07: /* MADI */ + /* for undefined/changeable signal */ + case 0x08: /* Analog */ + case 0x09: /* Digital */ + default: + location = pcm + sec_loc; + if (location >= AMDTP_MAX_CHANNELS_FOR_PCM) { + err = -ENOSYS; + goto end; + } + s->pcm_positions[location] = stm_pos; + break; + } + } + + if (type != 0x0a) + pcm += channels; + else + midi += channels; + } +end: + kfree(buf); + return err; +} + +static int +init_both_connections(struct snd_bebob *bebob) +{ + int err; + + err = cmp_connection_init(&bebob->in_conn, + bebob->unit, CMP_INPUT, 0); + if (err < 0) + goto end; + + err = cmp_connection_init(&bebob->out_conn, + bebob->unit, CMP_OUTPUT, 0); + if (err < 0) + cmp_connection_destroy(&bebob->in_conn); +end: + return err; +} + +static int +check_connection_used_by_others(struct snd_bebob *bebob, struct amdtp_stream *s) +{ + struct cmp_connection *conn; + bool used; + int err; + + if (s == &bebob->tx_stream) + conn = &bebob->out_conn; + else + conn = &bebob->in_conn; + + err = cmp_connection_check_used(conn, &used); + if ((err >= 0) && used && !amdtp_stream_running(s)) { + dev_err(&bebob->unit->device, + "Connection established by others: %cPCR[%d]\n", + (conn->direction == CMP_OUTPUT) ? 'o' : 'i', + conn->pcr_index); + err = -EBUSY; + } + + return err; +} + +static int +make_both_connections(struct snd_bebob *bebob, unsigned int rate) +{ + int index, pcm_channels, midi_channels, err = 0; + + if (bebob->connected) + goto end; + + /* confirm params for both streams */ + index = get_formation_index(rate); + pcm_channels = bebob->tx_stream_formations[index].pcm; + midi_channels = bebob->tx_stream_formations[index].midi; + amdtp_stream_set_parameters(&bebob->tx_stream, + rate, pcm_channels, midi_channels * 8); + pcm_channels = bebob->rx_stream_formations[index].pcm; + midi_channels = bebob->rx_stream_formations[index].midi; + amdtp_stream_set_parameters(&bebob->rx_stream, + rate, pcm_channels, midi_channels * 8); + + /* establish connections for both streams */ + err = cmp_connection_establish(&bebob->out_conn, + amdtp_stream_get_max_payload(&bebob->tx_stream)); + if (err < 0) + goto end; + err = cmp_connection_establish(&bebob->in_conn, + amdtp_stream_get_max_payload(&bebob->rx_stream)); + if (err < 0) { + cmp_connection_break(&bebob->out_conn); + goto end; + } + + bebob->connected = true; +end: + return err; +} + +static void +break_both_connections(struct snd_bebob *bebob) +{ + cmp_connection_break(&bebob->in_conn); + cmp_connection_break(&bebob->out_conn); + + bebob->connected = false; + + /* These models seems to be in transition state for a longer time. */ + if (bebob->maudio_special_quirk != NULL) + msleep(200); +} + +static void +destroy_both_connections(struct snd_bebob *bebob) +{ + cmp_connection_destroy(&bebob->in_conn); + cmp_connection_destroy(&bebob->out_conn); +} + +static int +get_sync_mode(struct snd_bebob *bebob, enum cip_flags *sync_mode) +{ + /* currently this module doesn't support SYT-Match mode */ + *sync_mode = CIP_SYNC_TO_DEVICE; + return 0; +} + +static int +start_stream(struct snd_bebob *bebob, struct amdtp_stream *stream, + unsigned int rate) +{ + struct cmp_connection *conn; + int err = 0; + + if (stream == &bebob->rx_stream) + conn = &bebob->in_conn; + else + conn = &bebob->out_conn; + + /* channel mapping */ + if (bebob->maudio_special_quirk == NULL) { + err = map_data_channels(bebob, stream); + if (err < 0) + goto end; + } + + /* start amdtp stream */ + err = amdtp_stream_start(stream, + conn->resources.channel, + conn->speed); +end: + return err; +} + +int snd_bebob_stream_init_duplex(struct snd_bebob *bebob) +{ + int err; + + err = init_both_connections(bebob); + if (err < 0) + goto end; + + err = amdtp_stream_init(&bebob->tx_stream, bebob->unit, + AMDTP_IN_STREAM, CIP_BLOCKING); + if (err < 0) { + amdtp_stream_destroy(&bebob->tx_stream); + destroy_both_connections(bebob); + goto end; + } + /* See comments in next function */ + init_completion(&bebob->bus_reset); + bebob->tx_stream.flags |= CIP_SKIP_INIT_DBC_CHECK; + /* + * At high sampling rate, M-Audio special firmware transmits empty + * packet with the value of dbc incremented by 8 but the others are + * valid to IEC 61883-1. + */ + if (bebob->maudio_special_quirk) + bebob->tx_stream.flags |= CIP_EMPTY_HAS_WRONG_DBC; + + err = amdtp_stream_init(&bebob->rx_stream, bebob->unit, + AMDTP_OUT_STREAM, CIP_BLOCKING); + if (err < 0) { + amdtp_stream_destroy(&bebob->tx_stream); + amdtp_stream_destroy(&bebob->rx_stream); + destroy_both_connections(bebob); + } +end: + return err; +} + +int snd_bebob_stream_start_duplex(struct snd_bebob *bebob, unsigned int rate) +{ + struct snd_bebob_rate_spec *rate_spec = bebob->spec->rate; + struct amdtp_stream *master, *slave; + atomic_t *slave_substreams; + enum cip_flags sync_mode; + unsigned int curr_rate; + bool updated = false; + int err = 0; + + /* + * Normal BeBoB firmware has a quirk at bus reset to transmits packets + * with discontinuous value in dbc field. + * + * This 'struct completion' is used to call .update() at first to update + * connections/streams. Next following codes handle streaming error. + */ + if (amdtp_streaming_error(&bebob->tx_stream)) { + if (completion_done(&bebob->bus_reset)) + reinit_completion(&bebob->bus_reset); + + updated = (wait_for_completion_interruptible_timeout( + &bebob->bus_reset, + msecs_to_jiffies(FW_ISO_RESOURCE_DELAY)) > 0); + } + + mutex_lock(&bebob->mutex); + + /* Need no substreams */ + if (atomic_read(&bebob->playback_substreams) == 0 && + atomic_read(&bebob->capture_substreams) == 0) + goto end; + + err = get_sync_mode(bebob, &sync_mode); + if (err < 0) + goto end; + if (sync_mode == CIP_SYNC_TO_DEVICE) { + master = &bebob->tx_stream; + slave = &bebob->rx_stream; + slave_substreams = &bebob->playback_substreams; + } else { + master = &bebob->rx_stream; + slave = &bebob->tx_stream; + slave_substreams = &bebob->capture_substreams; + } + + /* + * Considering JACK/FFADO streaming: + * TODO: This can be removed hwdep functionality becomes popular. + */ + err = check_connection_used_by_others(bebob, master); + if (err < 0) + goto end; + + /* + * packet queueing error or detecting discontinuity + * + * At bus reset, connections should not be broken here. So streams need + * to be re-started. This is a reason to use SKIP_INIT_DBC_CHECK flag. + */ + if (amdtp_streaming_error(master)) + amdtp_stream_stop(master); + if (amdtp_streaming_error(slave)) + amdtp_stream_stop(slave); + if (!updated && + !amdtp_stream_running(master) && !amdtp_stream_running(slave)) + break_both_connections(bebob); + + /* stop streams if rate is different */ + err = rate_spec->get(bebob, &curr_rate); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get sampling rate: %d\n", err); + goto end; + } + if (rate == 0) + rate = curr_rate; + if (rate != curr_rate) { + amdtp_stream_stop(master); + amdtp_stream_stop(slave); + break_both_connections(bebob); + } + + /* master should be always running */ + if (!amdtp_stream_running(master)) { + amdtp_stream_set_sync(sync_mode, master, slave); + bebob->master = master; + + /* + * NOTE: + * If establishing connections at first, Yamaha GO46 + * (and maybe Terratec X24) don't generate sound. + * + * For firmware customized by M-Audio, refer to next NOTE. + */ + if (bebob->maudio_special_quirk == NULL) { + err = rate_spec->set(bebob, rate); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to set sampling rate: %d\n", + err); + goto end; + } + } + + err = make_both_connections(bebob, rate); + if (err < 0) + goto end; + + err = start_stream(bebob, master, rate); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to run AMDTP master stream:%d\n", err); + break_both_connections(bebob); + goto end; + } + + /* + * NOTE: + * The firmware customized by M-Audio uses these commands to + * start transmitting stream. This is not usual way. + */ + if (bebob->maudio_special_quirk != NULL) { + err = rate_spec->set(bebob, rate); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to ensure sampling rate: %d\n", + err); + amdtp_stream_stop(master); + break_both_connections(bebob); + goto end; + } + } + + /* wait first callback */ + if (!amdtp_stream_wait_callback(master, CALLBACK_TIMEOUT)) { + amdtp_stream_stop(master); + break_both_connections(bebob); + err = -ETIMEDOUT; + goto end; + } + } + + /* start slave if needed */ + if (atomic_read(slave_substreams) > 0 && !amdtp_stream_running(slave)) { + err = start_stream(bebob, slave, rate); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to run AMDTP slave stream:%d\n", err); + amdtp_stream_stop(master); + break_both_connections(bebob); + goto end; + } + + /* wait first callback */ + if (!amdtp_stream_wait_callback(slave, CALLBACK_TIMEOUT)) { + amdtp_stream_stop(slave); + amdtp_stream_stop(master); + break_both_connections(bebob); + err = -ETIMEDOUT; + } + } +end: + mutex_unlock(&bebob->mutex); + return err; +} + +void snd_bebob_stream_stop_duplex(struct snd_bebob *bebob) +{ + struct amdtp_stream *master, *slave; + atomic_t *master_substreams, *slave_substreams; + + if (bebob->master == &bebob->rx_stream) { + slave = &bebob->tx_stream; + master = &bebob->rx_stream; + slave_substreams = &bebob->capture_substreams; + master_substreams = &bebob->playback_substreams; + } else { + slave = &bebob->rx_stream; + master = &bebob->tx_stream; + slave_substreams = &bebob->playback_substreams; + master_substreams = &bebob->capture_substreams; + } + + mutex_lock(&bebob->mutex); + + if (atomic_read(slave_substreams) == 0) { + amdtp_stream_pcm_abort(slave); + amdtp_stream_stop(slave); + + if (atomic_read(master_substreams) == 0) { + amdtp_stream_pcm_abort(master); + amdtp_stream_stop(master); + break_both_connections(bebob); + } + } + + mutex_unlock(&bebob->mutex); +} + +void snd_bebob_stream_update_duplex(struct snd_bebob *bebob) +{ + /* vs. XRUN recovery due to discontinuity at bus reset */ + mutex_lock(&bebob->mutex); + + if ((cmp_connection_update(&bebob->in_conn) < 0) || + (cmp_connection_update(&bebob->out_conn) < 0)) { + amdtp_stream_pcm_abort(&bebob->rx_stream); + amdtp_stream_pcm_abort(&bebob->tx_stream); + amdtp_stream_stop(&bebob->rx_stream); + amdtp_stream_stop(&bebob->tx_stream); + break_both_connections(bebob); + } else { + amdtp_stream_update(&bebob->rx_stream); + amdtp_stream_update(&bebob->tx_stream); + } + + /* wake up stream_start_duplex() */ + if (!completion_done(&bebob->bus_reset)) + complete_all(&bebob->bus_reset); + + mutex_unlock(&bebob->mutex); +} + +/* + * This function should be called before starting streams or after stopping + * streams. + */ +void snd_bebob_stream_destroy_duplex(struct snd_bebob *bebob) +{ + amdtp_stream_destroy(&bebob->rx_stream); + amdtp_stream_destroy(&bebob->tx_stream); + + destroy_both_connections(bebob); +} + +/* + * See: Table 50: Extended Stream Format Info Format Hierarchy Level 2’ + * in Additional AVC commands (Nov 2003, BridgeCo) + * Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005 + */ +static int +parse_stream_formation(u8 *buf, unsigned int len, + struct snd_bebob_stream_formation *formation) +{ + unsigned int i, e, channels, format; + + /* + * this module can support a hierarchy combination that: + * Root: Audio and Music (0x90) + * Level 1: AM824 Compound (0x40) + */ + if ((buf[0] != 0x90) || (buf[1] != 0x40)) + return -ENOSYS; + + /* check sampling rate */ + for (i = 0; i < ARRAY_SIZE(bridgeco_freq_table); i++) { + if (buf[2] == bridgeco_freq_table[i]) + break; + } + if (i == ARRAY_SIZE(bridgeco_freq_table)) + return -ENOSYS; + + /* Avoid double count by different entries for the same rate. */ + memset(&formation[i], 0, sizeof(struct snd_bebob_stream_formation)); + + for (e = 0; e < buf[4]; e++) { + channels = buf[5 + e * 2]; + format = buf[6 + e * 2]; + + switch (format) { + /* IEC 60958 Conformant, currently handled as MBLA */ + case 0x00: + /* Multi bit linear audio */ + case 0x06: /* Raw */ + formation[i].pcm += channels; + break; + /* MIDI Conformant */ + case 0x0d: + formation[i].midi += channels; + break; + /* IEC 61937-3 to 7 */ + case 0x01: + case 0x02: + case 0x03: + case 0x04: + case 0x05: + /* Multi bit linear audio */ + case 0x07: /* DVD-Audio */ + case 0x0c: /* High Precision */ + /* One Bit Audio */ + case 0x08: /* (Plain) Raw */ + case 0x09: /* (Plain) SACD */ + case 0x0a: /* (Encoded) Raw */ + case 0x0b: /* (Encoded) SACD */ + /* Synchronization Stream (Stereo Raw audio) */ + case 0x40: + /* Don't care */ + case 0xff: + default: + return -ENOSYS; /* not supported */ + } + } + + if (formation[i].pcm > AMDTP_MAX_CHANNELS_FOR_PCM || + formation[i].midi > AMDTP_MAX_CHANNELS_FOR_MIDI) + return -ENOSYS; + + return 0; +} + +static int +fill_stream_formations(struct snd_bebob *bebob, enum avc_bridgeco_plug_dir dir, + unsigned short pid) +{ + u8 *buf; + struct snd_bebob_stream_formation *formations; + unsigned int len, eid; + u8 addr[AVC_BRIDGECO_ADDR_BYTES]; + int err; + + buf = kmalloc(FORMAT_MAXIMUM_LENGTH, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + if (dir == AVC_BRIDGECO_PLUG_DIR_IN) + formations = bebob->rx_stream_formations; + else + formations = bebob->tx_stream_formations; + + for (eid = 0; eid < SND_BEBOB_STRM_FMT_ENTRIES; eid++) { + len = FORMAT_MAXIMUM_LENGTH; + avc_bridgeco_fill_unit_addr(addr, dir, + AVC_BRIDGECO_PLUG_UNIT_ISOC, pid); + err = avc_bridgeco_get_plug_strm_fmt(bebob->unit, addr, buf, + &len, eid); + /* No entries remained. */ + if (err == -EINVAL && eid > 0) { + err = 0; + break; + } else if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get stream format %d for isoc %s plug %d:%d\n", + eid, + (dir == AVC_BRIDGECO_PLUG_DIR_IN) ? "in" : + "out", + pid, err); + break; + } + + err = parse_stream_formation(buf, len, formations); + if (err < 0) + break; + } + + kfree(buf); + return err; +} + +static int +seek_msu_sync_input_plug(struct snd_bebob *bebob) +{ + u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES]; + unsigned int i; + enum avc_bridgeco_plug_type type; + int err; + + /* Get the number of Music Sub Unit for both direction. */ + err = avc_general_get_plug_info(bebob->unit, 0x0c, 0x00, 0x00, plugs); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get info for MSU in/out plugs: %d\n", + err); + goto end; + } + + /* seek destination plugs for 'MSU sync input' */ + bebob->sync_input_plug = -1; + for (i = 0; i < plugs[0]; i++) { + avc_bridgeco_fill_msu_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, i); + err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get type for MSU in plug %d: %d\n", + i, err); + goto end; + } + + if (type == AVC_BRIDGECO_PLUG_TYPE_SYNC) { + bebob->sync_input_plug = i; + break; + } + } +end: + return err; +} + +int snd_bebob_stream_discover(struct snd_bebob *bebob) +{ + struct snd_bebob_clock_spec *clk_spec = bebob->spec->clock; + u8 plugs[AVC_PLUG_INFO_BUF_BYTES], addr[AVC_BRIDGECO_ADDR_BYTES]; + enum avc_bridgeco_plug_type type; + unsigned int i; + int err; + + /* the number of plugs for isoc in/out, ext in/out */ + err = avc_general_get_plug_info(bebob->unit, 0x1f, 0x07, 0x00, plugs); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get info for isoc/external in/out plugs: %d\n", + err); + goto end; + } + + /* + * This module supports at least one isoc input plug and one isoc + * output plug. + */ + if ((plugs[0] == 0) || (plugs[1] == 0)) { + err = -ENOSYS; + goto end; + } + + avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, + AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); + err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get type for isoc in plug 0: %d\n", err); + goto end; + } else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) { + err = -ENOSYS; + goto end; + } + err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_IN, 0); + if (err < 0) + goto end; + + avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT, + AVC_BRIDGECO_PLUG_UNIT_ISOC, 0); + err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get type for isoc out plug 0: %d\n", err); + goto end; + } else if (type != AVC_BRIDGECO_PLUG_TYPE_ISOC) { + err = -ENOSYS; + goto end; + } + err = fill_stream_formations(bebob, AVC_BRIDGECO_PLUG_DIR_OUT, 0); + if (err < 0) + goto end; + + /* count external input plugs for MIDI */ + bebob->midi_input_ports = 0; + for (i = 0; i < plugs[2]; i++) { + avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_IN, + AVC_BRIDGECO_PLUG_UNIT_EXT, i); + err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get type for external in plug %d: %d\n", + i, err); + goto end; + } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) { + bebob->midi_input_ports++; + } + } + + /* count external output plugs for MIDI */ + bebob->midi_output_ports = 0; + for (i = 0; i < plugs[3]; i++) { + avc_bridgeco_fill_unit_addr(addr, AVC_BRIDGECO_PLUG_DIR_OUT, + AVC_BRIDGECO_PLUG_UNIT_EXT, i); + err = avc_bridgeco_get_plug_type(bebob->unit, addr, &type); + if (err < 0) { + dev_err(&bebob->unit->device, + "fail to get type for external out plug %d: %d\n", + i, err); + goto end; + } else if (type == AVC_BRIDGECO_PLUG_TYPE_MIDI) { + bebob->midi_output_ports++; + } + } + + /* for check source of clock later */ + if (!clk_spec) + err = seek_msu_sync_input_plug(bebob); +end: + return err; +} + +void snd_bebob_stream_lock_changed(struct snd_bebob *bebob) +{ + bebob->dev_lock_changed = true; + wake_up(&bebob->hwdep_wait); +} + +int snd_bebob_stream_lock_try(struct snd_bebob *bebob) +{ + int err; + + spin_lock_irq(&bebob->lock); + + /* user land lock this */ + if (bebob->dev_lock_count < 0) { + err = -EBUSY; + goto end; + } + + /* this is the first time */ + if (bebob->dev_lock_count++ == 0) + snd_bebob_stream_lock_changed(bebob); + err = 0; +end: + spin_unlock_irq(&bebob->lock); + return err; +} + +void snd_bebob_stream_lock_release(struct snd_bebob *bebob) +{ + spin_lock_irq(&bebob->lock); + + if (WARN_ON(bebob->dev_lock_count <= 0)) + goto end; + if (--bebob->dev_lock_count == 0) + snd_bebob_stream_lock_changed(bebob); +end: + spin_unlock_irq(&bebob->lock); +} diff --git a/kernel/sound/firewire/bebob/bebob_terratec.c b/kernel/sound/firewire/bebob/bebob_terratec.c new file mode 100644 index 000000000..ad635004d --- /dev/null +++ b/kernel/sound/firewire/bebob/bebob_terratec.c @@ -0,0 +1,73 @@ +/* + * bebob_terratec.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./bebob.h" + +static const char *const phase88_rack_clk_src_labels[] = { + SND_BEBOB_CLOCK_INTERNAL, "Digital In", "Word Clock" +}; +static int +phase88_rack_clk_src_get(struct snd_bebob *bebob, unsigned int *id) +{ + unsigned int enable_ext, enable_word; + int err; + + err = avc_audio_get_selector(bebob->unit, 0, 9, &enable_ext); + if (err < 0) + goto end; + err = avc_audio_get_selector(bebob->unit, 0, 8, &enable_word); + if (err < 0) + goto end; + + if (enable_ext == 0) + *id = 0; + else if (enable_word == 0) + *id = 1; + else + *id = 2; +end: + return err; +} + +static const char *const phase24_series_clk_src_labels[] = { + SND_BEBOB_CLOCK_INTERNAL, "Digital In" +}; +static int +phase24_series_clk_src_get(struct snd_bebob *bebob, unsigned int *id) +{ + return avc_audio_get_selector(bebob->unit, 0, 4, id); +} + +static struct snd_bebob_rate_spec phase_series_rate_spec = { + .get = &snd_bebob_stream_get_rate, + .set = &snd_bebob_stream_set_rate, +}; + +/* PHASE 88 Rack FW */ +static struct snd_bebob_clock_spec phase88_rack_clk = { + .num = ARRAY_SIZE(phase88_rack_clk_src_labels), + .labels = phase88_rack_clk_src_labels, + .get = &phase88_rack_clk_src_get, +}; +struct snd_bebob_spec phase88_rack_spec = { + .clock = &phase88_rack_clk, + .rate = &phase_series_rate_spec, + .meter = NULL +}; + +/* 'PHASE 24 FW' and 'PHASE X24 FW' */ +static struct snd_bebob_clock_spec phase24_series_clk = { + .num = ARRAY_SIZE(phase24_series_clk_src_labels), + .labels = phase24_series_clk_src_labels, + .get = &phase24_series_clk_src_get, +}; +struct snd_bebob_spec phase24_series_spec = { + .clock = &phase24_series_clk, + .rate = &phase_series_rate_spec, + .meter = NULL +}; diff --git a/kernel/sound/firewire/bebob/bebob_yamaha.c b/kernel/sound/firewire/bebob/bebob_yamaha.c new file mode 100644 index 000000000..ef1fe3823 --- /dev/null +++ b/kernel/sound/firewire/bebob/bebob_yamaha.c @@ -0,0 +1,50 @@ +/* + * bebob_yamaha.c - a part of driver for BeBoB based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./bebob.h" + +/* + * NOTE: + * Yamaha GO44 is not designed to be used as stand-alone mixer. So any streams + * must be accompanied. If changing the state, a LED on the device starts to + * blink and its sync status is false. In this state, the device sounds nothing + * even if streaming. To start streaming at the current sampling rate is only + * way to revocer this state. GO46 is better for stand-alone mixer. + * + * Both of them have a capability to change its sampling rate up to 192.0kHz. + * At 192.0kHz, the device reports 4 PCM-in, 1 MIDI-in, 6 PCM-out, 1 MIDI-out. + * But Yamaha's driver reduce 2 PCM-in, 1 MIDI-in, 2 PCM-out, 1 MIDI-out to use + * 'Extended Stream Format Information Command - Single Request' in 'Additional + * AVC commands' defined by BridgeCo. + * This ALSA driver don't do this because a bit tiresome. Then isochronous + * streaming with many asynchronous transactions brings sounds with noises. + * Unfortunately current 'ffado-mixer' generated many asynchronous transaction + * to observe device's state, mainly check cmp connection and signal format. I + * reccomend users to close ffado-mixer at 192.0kHz if mixer is needless. + */ + +static const char *const clk_src_labels[] = {SND_BEBOB_CLOCK_INTERNAL, "SPDIF"}; +static int +clk_src_get(struct snd_bebob *bebob, unsigned int *id) +{ + return avc_audio_get_selector(bebob->unit, 0, 4, id); +} +static struct snd_bebob_clock_spec clock_spec = { + .num = ARRAY_SIZE(clk_src_labels), + .labels = clk_src_labels, + .get = &clk_src_get, +}; +static struct snd_bebob_rate_spec rate_spec = { + .get = &snd_bebob_stream_get_rate, + .set = &snd_bebob_stream_set_rate, +}; +struct snd_bebob_spec yamaha_go_spec = { + .clock = &clock_spec, + .rate = &rate_spec, + .meter = NULL +}; diff --git a/kernel/sound/firewire/cmp.c b/kernel/sound/firewire/cmp.c new file mode 100644 index 000000000..ae3bc1940 --- /dev/null +++ b/kernel/sound/firewire/cmp.c @@ -0,0 +1,404 @@ +/* + * Connection Management Procedures (IEC 61883-1) helper functions + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/firewire-constants.h> +#include <linux/module.h> +#include <linux/sched.h> +#include "lib.h" +#include "iso-resources.h" +#include "cmp.h" + +/* MPR common fields */ +#define MPR_SPEED_MASK 0xc0000000 +#define MPR_SPEED_SHIFT 30 +#define MPR_XSPEED_MASK 0x00000060 +#define MPR_XSPEED_SHIFT 5 +#define MPR_PLUGS_MASK 0x0000001f + +/* PCR common fields */ +#define PCR_ONLINE 0x80000000 +#define PCR_BCAST_CONN 0x40000000 +#define PCR_P2P_CONN_MASK 0x3f000000 +#define PCR_P2P_CONN_SHIFT 24 +#define PCR_CHANNEL_MASK 0x003f0000 +#define PCR_CHANNEL_SHIFT 16 + +/* oPCR specific fields */ +#define OPCR_XSPEED_MASK 0x00C00000 +#define OPCR_XSPEED_SHIFT 22 +#define OPCR_SPEED_MASK 0x0000C000 +#define OPCR_SPEED_SHIFT 14 +#define OPCR_OVERHEAD_ID_MASK 0x00003C00 +#define OPCR_OVERHEAD_ID_SHIFT 10 + +enum bus_reset_handling { + ABORT_ON_BUS_RESET, + SUCCEED_ON_BUS_RESET, +}; + +static __printf(2, 3) +void cmp_error(struct cmp_connection *c, const char *fmt, ...) +{ + va_list va; + + va_start(va, fmt); + dev_err(&c->resources.unit->device, "%cPCR%u: %pV", + (c->direction == CMP_INPUT) ? 'i' : 'o', + c->pcr_index, &(struct va_format){ fmt, &va }); + va_end(va); +} + +static u64 mpr_address(struct cmp_connection *c) +{ + if (c->direction == CMP_INPUT) + return CSR_REGISTER_BASE + CSR_IMPR; + else + return CSR_REGISTER_BASE + CSR_OMPR; +} + +static u64 pcr_address(struct cmp_connection *c) +{ + if (c->direction == CMP_INPUT) + return CSR_REGISTER_BASE + CSR_IPCR(c->pcr_index); + else + return CSR_REGISTER_BASE + CSR_OPCR(c->pcr_index); +} + +static int pcr_modify(struct cmp_connection *c, + __be32 (*modify)(struct cmp_connection *c, __be32 old), + int (*check)(struct cmp_connection *c, __be32 pcr), + enum bus_reset_handling bus_reset_handling) +{ + __be32 old_arg, buffer[2]; + int err; + + buffer[0] = c->last_pcr_value; + for (;;) { + old_arg = buffer[0]; + buffer[1] = modify(c, buffer[0]); + + err = snd_fw_transaction( + c->resources.unit, TCODE_LOCK_COMPARE_SWAP, + pcr_address(c), buffer, 8, + FW_FIXED_GENERATION | c->resources.generation); + + if (err < 0) { + if (err == -EAGAIN && + bus_reset_handling == SUCCEED_ON_BUS_RESET) + err = 0; + return err; + } + + if (buffer[0] == old_arg) /* success? */ + break; + + if (check) { + err = check(c, buffer[0]); + if (err < 0) + return err; + } + } + c->last_pcr_value = buffer[1]; + + return 0; +} + + +/** + * cmp_connection_init - initializes a connection manager + * @c: the connection manager to initialize + * @unit: a unit of the target device + * @direction: input or output + * @pcr_index: the index of the iPCR/oPCR on the target device + */ +int cmp_connection_init(struct cmp_connection *c, + struct fw_unit *unit, + enum cmp_direction direction, + unsigned int pcr_index) +{ + __be32 mpr_be; + u32 mpr; + int err; + + c->direction = direction; + err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST, + mpr_address(c), &mpr_be, 4, 0); + if (err < 0) + return err; + mpr = be32_to_cpu(mpr_be); + + if (pcr_index >= (mpr & MPR_PLUGS_MASK)) + return -EINVAL; + + err = fw_iso_resources_init(&c->resources, unit); + if (err < 0) + return err; + + c->connected = false; + mutex_init(&c->mutex); + c->last_pcr_value = cpu_to_be32(0x80000000); + c->pcr_index = pcr_index; + c->max_speed = (mpr & MPR_SPEED_MASK) >> MPR_SPEED_SHIFT; + if (c->max_speed == SCODE_BETA) + c->max_speed += (mpr & MPR_XSPEED_MASK) >> MPR_XSPEED_SHIFT; + + return 0; +} +EXPORT_SYMBOL(cmp_connection_init); + +/** + * cmp_connection_check_used - check connection is already esablished or not + * @c: the connection manager to be checked + * @used: the pointer to store the result of checking the connection + */ +int cmp_connection_check_used(struct cmp_connection *c, bool *used) +{ + __be32 pcr; + int err; + + err = snd_fw_transaction( + c->resources.unit, TCODE_READ_QUADLET_REQUEST, + pcr_address(c), &pcr, 4, 0); + if (err >= 0) + *used = !!(pcr & cpu_to_be32(PCR_BCAST_CONN | + PCR_P2P_CONN_MASK)); + + return err; +} +EXPORT_SYMBOL(cmp_connection_check_used); + +/** + * cmp_connection_destroy - free connection manager resources + * @c: the connection manager + */ +void cmp_connection_destroy(struct cmp_connection *c) +{ + WARN_ON(c->connected); + mutex_destroy(&c->mutex); + fw_iso_resources_destroy(&c->resources); +} +EXPORT_SYMBOL(cmp_connection_destroy); + + +static __be32 ipcr_set_modify(struct cmp_connection *c, __be32 ipcr) +{ + ipcr &= ~cpu_to_be32(PCR_BCAST_CONN | + PCR_P2P_CONN_MASK | + PCR_CHANNEL_MASK); + ipcr |= cpu_to_be32(1 << PCR_P2P_CONN_SHIFT); + ipcr |= cpu_to_be32(c->resources.channel << PCR_CHANNEL_SHIFT); + + return ipcr; +} + +static int get_overhead_id(struct cmp_connection *c) +{ + int id; + + /* + * apply "oPCR overhead ID encoding" + * the encoding table can convert up to 512. + * here the value over 512 is converted as the same way as 512. + */ + for (id = 1; id < 16; id++) { + if (c->resources.bandwidth_overhead < (id << 5)) + break; + } + if (id == 16) + id = 0; + + return id; +} + +static __be32 opcr_set_modify(struct cmp_connection *c, __be32 opcr) +{ + unsigned int spd, xspd; + + /* generate speed and extended speed field value */ + if (c->speed > SCODE_400) { + spd = SCODE_800; + xspd = c->speed - SCODE_800; + } else { + spd = c->speed; + xspd = 0; + } + + opcr &= ~cpu_to_be32(PCR_BCAST_CONN | + PCR_P2P_CONN_MASK | + OPCR_XSPEED_MASK | + PCR_CHANNEL_MASK | + OPCR_SPEED_MASK | + OPCR_OVERHEAD_ID_MASK); + opcr |= cpu_to_be32(1 << PCR_P2P_CONN_SHIFT); + opcr |= cpu_to_be32(xspd << OPCR_XSPEED_SHIFT); + opcr |= cpu_to_be32(c->resources.channel << PCR_CHANNEL_SHIFT); + opcr |= cpu_to_be32(spd << OPCR_SPEED_SHIFT); + opcr |= cpu_to_be32(get_overhead_id(c) << OPCR_OVERHEAD_ID_SHIFT); + + return opcr; +} + +static int pcr_set_check(struct cmp_connection *c, __be32 pcr) +{ + if (pcr & cpu_to_be32(PCR_BCAST_CONN | + PCR_P2P_CONN_MASK)) { + cmp_error(c, "plug is already in use\n"); + return -EBUSY; + } + if (!(pcr & cpu_to_be32(PCR_ONLINE))) { + cmp_error(c, "plug is not on-line\n"); + return -ECONNREFUSED; + } + + return 0; +} + +/** + * cmp_connection_establish - establish a connection to the target + * @c: the connection manager + * @max_payload_bytes: the amount of data (including CIP headers) per packet + * + * This function establishes a point-to-point connection from the local + * computer to the target by allocating isochronous resources (channel and + * bandwidth) and setting the target's input/output plug control register. + * When this function succeeds, the caller is responsible for starting + * transmitting packets. + */ +int cmp_connection_establish(struct cmp_connection *c, + unsigned int max_payload_bytes) +{ + int err; + + if (WARN_ON(c->connected)) + return -EISCONN; + + c->speed = min(c->max_speed, + fw_parent_device(c->resources.unit)->max_speed); + + mutex_lock(&c->mutex); + +retry_after_bus_reset: + err = fw_iso_resources_allocate(&c->resources, + max_payload_bytes, c->speed); + if (err < 0) + goto err_mutex; + + if (c->direction == CMP_OUTPUT) + err = pcr_modify(c, opcr_set_modify, pcr_set_check, + ABORT_ON_BUS_RESET); + else + err = pcr_modify(c, ipcr_set_modify, pcr_set_check, + ABORT_ON_BUS_RESET); + + if (err == -EAGAIN) { + fw_iso_resources_free(&c->resources); + goto retry_after_bus_reset; + } + if (err < 0) + goto err_resources; + + c->connected = true; + + mutex_unlock(&c->mutex); + + return 0; + +err_resources: + fw_iso_resources_free(&c->resources); +err_mutex: + mutex_unlock(&c->mutex); + + return err; +} +EXPORT_SYMBOL(cmp_connection_establish); + +/** + * cmp_connection_update - update the connection after a bus reset + * @c: the connection manager + * + * This function must be called from the driver's .update handler to + * reestablish any connection that might have been active. + * + * Returns zero on success, or a negative error code. On an error, the + * connection is broken and the caller must stop transmitting iso packets. + */ +int cmp_connection_update(struct cmp_connection *c) +{ + int err; + + mutex_lock(&c->mutex); + + if (!c->connected) { + mutex_unlock(&c->mutex); + return 0; + } + + err = fw_iso_resources_update(&c->resources); + if (err < 0) + goto err_unconnect; + + if (c->direction == CMP_OUTPUT) + err = pcr_modify(c, opcr_set_modify, pcr_set_check, + SUCCEED_ON_BUS_RESET); + else + err = pcr_modify(c, ipcr_set_modify, pcr_set_check, + SUCCEED_ON_BUS_RESET); + + if (err < 0) + goto err_resources; + + mutex_unlock(&c->mutex); + + return 0; + +err_resources: + fw_iso_resources_free(&c->resources); +err_unconnect: + c->connected = false; + mutex_unlock(&c->mutex); + + return err; +} +EXPORT_SYMBOL(cmp_connection_update); + +static __be32 pcr_break_modify(struct cmp_connection *c, __be32 pcr) +{ + return pcr & ~cpu_to_be32(PCR_BCAST_CONN | PCR_P2P_CONN_MASK); +} + +/** + * cmp_connection_break - break the connection to the target + * @c: the connection manager + * + * This function deactives the connection in the target's input/output plug + * control register, and frees the isochronous resources of the connection. + * Before calling this function, the caller should cease transmitting packets. + */ +void cmp_connection_break(struct cmp_connection *c) +{ + int err; + + mutex_lock(&c->mutex); + + if (!c->connected) { + mutex_unlock(&c->mutex); + return; + } + + err = pcr_modify(c, pcr_break_modify, NULL, SUCCEED_ON_BUS_RESET); + if (err < 0) + cmp_error(c, "plug is still connected\n"); + + fw_iso_resources_free(&c->resources); + + c->connected = false; + + mutex_unlock(&c->mutex); +} +EXPORT_SYMBOL(cmp_connection_break); diff --git a/kernel/sound/firewire/cmp.h b/kernel/sound/firewire/cmp.h new file mode 100644 index 000000000..ebcb48484 --- /dev/null +++ b/kernel/sound/firewire/cmp.h @@ -0,0 +1,49 @@ +#ifndef SOUND_FIREWIRE_CMP_H_INCLUDED +#define SOUND_FIREWIRE_CMP_H_INCLUDED + +#include <linux/mutex.h> +#include <linux/types.h> +#include "iso-resources.h" + +struct fw_unit; + +enum cmp_direction { + CMP_INPUT = 0, + CMP_OUTPUT, +}; + +/** + * struct cmp_connection - manages an isochronous connection to a device + * @speed: the connection's actual speed + * + * This structure manages (using CMP) an isochronous stream between the local + * computer and a device's input plug (iPCR) and output plug (oPCR). + * + * There is no corresponding oPCR created on the local computer, so it is not + * possible to overlay connections on top of this one. + */ +struct cmp_connection { + int speed; + /* private: */ + bool connected; + struct mutex mutex; + struct fw_iso_resources resources; + __be32 last_pcr_value; + unsigned int pcr_index; + unsigned int max_speed; + enum cmp_direction direction; +}; + +int cmp_connection_init(struct cmp_connection *connection, + struct fw_unit *unit, + enum cmp_direction direction, + unsigned int pcr_index); +int cmp_connection_check_used(struct cmp_connection *connection, bool *used); +void cmp_connection_destroy(struct cmp_connection *connection); + +int cmp_connection_establish(struct cmp_connection *connection, + unsigned int max_payload); +int cmp_connection_update(struct cmp_connection *connection); +void cmp_connection_break(struct cmp_connection *connection); + +#endif diff --git a/kernel/sound/firewire/dice/Makefile b/kernel/sound/firewire/dice/Makefile new file mode 100644 index 000000000..9ef228ef7 --- /dev/null +++ b/kernel/sound/firewire/dice/Makefile @@ -0,0 +1,3 @@ +snd-dice-objs := dice-transaction.o dice-stream.o dice-proc.o dice-midi.o \ + dice-pcm.o dice-hwdep.o dice.o +obj-m += snd-dice.o diff --git a/kernel/sound/firewire/dice/dice-hwdep.c b/kernel/sound/firewire/dice/dice-hwdep.c new file mode 100644 index 000000000..a4dc02a86 --- /dev/null +++ b/kernel/sound/firewire/dice/dice-hwdep.c @@ -0,0 +1,190 @@ +/* + * dice_hwdep.c - a part of driver for DICE based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Copyright (c) 2014 Takashi Sakamoto <o-takashi@sakamocchi.jp> + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "dice.h" + +static long hwdep_read(struct snd_hwdep *hwdep, char __user *buf, + long count, loff_t *offset) +{ + struct snd_dice *dice = hwdep->private_data; + DEFINE_WAIT(wait); + union snd_firewire_event event; + + spin_lock_irq(&dice->lock); + + while (!dice->dev_lock_changed && dice->notification_bits == 0) { + prepare_to_wait(&dice->hwdep_wait, &wait, TASK_INTERRUPTIBLE); + spin_unlock_irq(&dice->lock); + schedule(); + finish_wait(&dice->hwdep_wait, &wait); + if (signal_pending(current)) + return -ERESTARTSYS; + spin_lock_irq(&dice->lock); + } + + memset(&event, 0, sizeof(event)); + if (dice->dev_lock_changed) { + event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS; + event.lock_status.status = dice->dev_lock_count > 0; + dice->dev_lock_changed = false; + + count = min_t(long, count, sizeof(event.lock_status)); + } else { + event.dice_notification.type = + SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION; + event.dice_notification.notification = dice->notification_bits; + dice->notification_bits = 0; + + count = min_t(long, count, sizeof(event.dice_notification)); + } + + spin_unlock_irq(&dice->lock); + + if (copy_to_user(buf, &event, count)) + return -EFAULT; + + return count; +} + +static unsigned int hwdep_poll(struct snd_hwdep *hwdep, struct file *file, + poll_table *wait) +{ + struct snd_dice *dice = hwdep->private_data; + unsigned int events; + + poll_wait(file, &dice->hwdep_wait, wait); + + spin_lock_irq(&dice->lock); + if (dice->dev_lock_changed || dice->notification_bits != 0) + events = POLLIN | POLLRDNORM; + else + events = 0; + spin_unlock_irq(&dice->lock); + + return events; +} + +static int hwdep_get_info(struct snd_dice *dice, void __user *arg) +{ + struct fw_device *dev = fw_parent_device(dice->unit); + struct snd_firewire_get_info info; + + memset(&info, 0, sizeof(info)); + info.type = SNDRV_FIREWIRE_TYPE_DICE; + info.card = dev->card->index; + *(__be32 *)&info.guid[0] = cpu_to_be32(dev->config_rom[3]); + *(__be32 *)&info.guid[4] = cpu_to_be32(dev->config_rom[4]); + strlcpy(info.device_name, dev_name(&dev->device), + sizeof(info.device_name)); + + if (copy_to_user(arg, &info, sizeof(info))) + return -EFAULT; + + return 0; +} + +static int hwdep_lock(struct snd_dice *dice) +{ + int err; + + spin_lock_irq(&dice->lock); + + if (dice->dev_lock_count == 0) { + dice->dev_lock_count = -1; + err = 0; + } else { + err = -EBUSY; + } + + spin_unlock_irq(&dice->lock); + + return err; +} + +static int hwdep_unlock(struct snd_dice *dice) +{ + int err; + + spin_lock_irq(&dice->lock); + + if (dice->dev_lock_count == -1) { + dice->dev_lock_count = 0; + err = 0; + } else { + err = -EBADFD; + } + + spin_unlock_irq(&dice->lock); + + return err; +} + +static int hwdep_release(struct snd_hwdep *hwdep, struct file *file) +{ + struct snd_dice *dice = hwdep->private_data; + + spin_lock_irq(&dice->lock); + if (dice->dev_lock_count == -1) + dice->dev_lock_count = 0; + spin_unlock_irq(&dice->lock); + + return 0; +} + +static int hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct snd_dice *dice = hwdep->private_data; + + switch (cmd) { + case SNDRV_FIREWIRE_IOCTL_GET_INFO: + return hwdep_get_info(dice, (void __user *)arg); + case SNDRV_FIREWIRE_IOCTL_LOCK: + return hwdep_lock(dice); + case SNDRV_FIREWIRE_IOCTL_UNLOCK: + return hwdep_unlock(dice); + default: + return -ENOIOCTLCMD; + } +} + +#ifdef CONFIG_COMPAT +static int hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file, + unsigned int cmd, unsigned long arg) +{ + return hwdep_ioctl(hwdep, file, cmd, + (unsigned long)compat_ptr(arg)); +} +#else +#define hwdep_compat_ioctl NULL +#endif + +int snd_dice_create_hwdep(struct snd_dice *dice) +{ + static const struct snd_hwdep_ops ops = { + .read = hwdep_read, + .release = hwdep_release, + .poll = hwdep_poll, + .ioctl = hwdep_ioctl, + .ioctl_compat = hwdep_compat_ioctl, + }; + struct snd_hwdep *hwdep; + int err; + + err = snd_hwdep_new(dice->card, "DICE", 0, &hwdep); + if (err < 0) + return err; + strcpy(hwdep->name, "DICE"); + hwdep->iface = SNDRV_HWDEP_IFACE_FW_DICE; + hwdep->ops = ops; + hwdep->private_data = dice; + hwdep->exclusive = true; + + return 0; +} diff --git a/kernel/sound/firewire/dice/dice-interface.h b/kernel/sound/firewire/dice/dice-interface.h new file mode 100644 index 000000000..27b044f84 --- /dev/null +++ b/kernel/sound/firewire/dice/dice-interface.h @@ -0,0 +1,371 @@ +#ifndef SOUND_FIREWIRE_DICE_INTERFACE_H_INCLUDED +#define SOUND_FIREWIRE_DICE_INTERFACE_H_INCLUDED + +/* + * DICE device interface definitions + */ + +/* + * Generally, all registers can be read like memory, i.e., with quadlet read or + * block read transactions with at least quadlet-aligned offset and length. + * Writes are not allowed except where noted; quadlet-sized registers must be + * written with a quadlet write transaction. + * + * All values are in big endian. The DICE firmware runs on a little-endian CPU + * and just byte-swaps _all_ quadlets on the bus, so values without endianness + * (e.g. strings) get scrambled and must be byte-swapped again by the driver. + */ + +/* + * Streaming is handled by the "DICE driver" interface. Its registers are + * located in this private address space. + */ +#define DICE_PRIVATE_SPACE 0xffffe0000000uLL + +/* + * The registers are organized in several sections, which are organized + * separately to allow them to be extended individually. Whether a register is + * supported can be detected by checking its offset against its section's size. + * + * The section offset values are relative to DICE_PRIVATE_SPACE; the offset/ + * size values are measured in quadlets. Read-only. + */ +#define DICE_GLOBAL_OFFSET 0x00 +#define DICE_GLOBAL_SIZE 0x04 +#define DICE_TX_OFFSET 0x08 +#define DICE_TX_SIZE 0x0c +#define DICE_RX_OFFSET 0x10 +#define DICE_RX_SIZE 0x14 +#define DICE_EXT_SYNC_OFFSET 0x18 +#define DICE_EXT_SYNC_SIZE 0x1c +#define DICE_UNUSED2_OFFSET 0x20 +#define DICE_UNUSED2_SIZE 0x24 + +/* + * Global settings. + */ + +/* + * Stores the full 64-bit address (node ID and offset in the node's address + * space) where the device will send notifications. Must be changed with + * a compare/swap transaction by the owner. This register is automatically + * cleared on a bus reset. + */ +#define GLOBAL_OWNER 0x000 +#define OWNER_NO_OWNER 0xffff000000000000uLL +#define OWNER_NODE_SHIFT 48 + +/* + * A bitmask with asynchronous events; read-only. When any event(s) happen, + * the bits of previous events are cleared, and the value of this register is + * also written to the address stored in the owner register. + */ +#define GLOBAL_NOTIFICATION 0x008 +/* Some registers in the Rx/Tx sections may have changed. */ +#define NOTIFY_RX_CFG_CHG 0x00000001 +#define NOTIFY_TX_CFG_CHG 0x00000002 +/* Lock status of the current clock source may have changed. */ +#define NOTIFY_LOCK_CHG 0x00000010 +/* Write to the clock select register has been finished. */ +#define NOTIFY_CLOCK_ACCEPTED 0x00000020 +/* Lock status of some clock source has changed. */ +#define NOTIFY_EXT_STATUS 0x00000040 +/* Other bits may be used for device-specific events. */ + +/* + * A name that can be customized for each device; read/write. Padded with zero + * bytes. Quadlets are byte-swapped. The encoding is whatever the host driver + * happens to be using. + */ +#define GLOBAL_NICK_NAME 0x00c +#define NICK_NAME_SIZE 64 + +/* + * The current sample rate and clock source; read/write. Whether a clock + * source or sample rate is supported is device-specific; the internal clock + * source is always available. Low/mid/high = up to 48/96/192 kHz. This + * register can be changed even while streams are running. + */ +#define GLOBAL_CLOCK_SELECT 0x04c +#define CLOCK_SOURCE_MASK 0x000000ff +#define CLOCK_SOURCE_AES1 0x00000000 +#define CLOCK_SOURCE_AES2 0x00000001 +#define CLOCK_SOURCE_AES3 0x00000002 +#define CLOCK_SOURCE_AES4 0x00000003 +#define CLOCK_SOURCE_AES_ANY 0x00000004 +#define CLOCK_SOURCE_ADAT 0x00000005 +#define CLOCK_SOURCE_TDIF 0x00000006 +#define CLOCK_SOURCE_WC 0x00000007 +#define CLOCK_SOURCE_ARX1 0x00000008 +#define CLOCK_SOURCE_ARX2 0x00000009 +#define CLOCK_SOURCE_ARX3 0x0000000a +#define CLOCK_SOURCE_ARX4 0x0000000b +#define CLOCK_SOURCE_INTERNAL 0x0000000c +#define CLOCK_RATE_MASK 0x0000ff00 +#define CLOCK_RATE_32000 0x00000000 +#define CLOCK_RATE_44100 0x00000100 +#define CLOCK_RATE_48000 0x00000200 +#define CLOCK_RATE_88200 0x00000300 +#define CLOCK_RATE_96000 0x00000400 +#define CLOCK_RATE_176400 0x00000500 +#define CLOCK_RATE_192000 0x00000600 +#define CLOCK_RATE_ANY_LOW 0x00000700 +#define CLOCK_RATE_ANY_MID 0x00000800 +#define CLOCK_RATE_ANY_HIGH 0x00000900 +#define CLOCK_RATE_NONE 0x00000a00 +#define CLOCK_RATE_SHIFT 8 + +/* + * Enable streaming; read/write. Writing a non-zero value (re)starts all + * streams that have a valid iso channel set; zero stops all streams. The + * streams' parameters must be configured before starting. This register is + * automatically cleared on a bus reset. + */ +#define GLOBAL_ENABLE 0x050 + +/* + * Status of the sample clock; read-only. + */ +#define GLOBAL_STATUS 0x054 +/* The current clock source is locked. */ +#define STATUS_SOURCE_LOCKED 0x00000001 +/* The actual sample rate; CLOCK_RATE_32000-_192000 or _NONE. */ +#define STATUS_NOMINAL_RATE_MASK 0x0000ff00 + +/* + * Status of all clock sources; read-only. + */ +#define GLOBAL_EXTENDED_STATUS 0x058 +/* + * The _LOCKED bits always show the current status; any change generates + * a notification. + */ +#define EXT_STATUS_AES1_LOCKED 0x00000001 +#define EXT_STATUS_AES2_LOCKED 0x00000002 +#define EXT_STATUS_AES3_LOCKED 0x00000004 +#define EXT_STATUS_AES4_LOCKED 0x00000008 +#define EXT_STATUS_ADAT_LOCKED 0x00000010 +#define EXT_STATUS_TDIF_LOCKED 0x00000020 +#define EXT_STATUS_ARX1_LOCKED 0x00000040 +#define EXT_STATUS_ARX2_LOCKED 0x00000080 +#define EXT_STATUS_ARX3_LOCKED 0x00000100 +#define EXT_STATUS_ARX4_LOCKED 0x00000200 +#define EXT_STATUS_WC_LOCKED 0x00000400 +/* + * The _SLIP bits do not generate notifications; a set bit indicates that an + * error occurred since the last time when this register was read with + * a quadlet read transaction. + */ +#define EXT_STATUS_AES1_SLIP 0x00010000 +#define EXT_STATUS_AES2_SLIP 0x00020000 +#define EXT_STATUS_AES3_SLIP 0x00040000 +#define EXT_STATUS_AES4_SLIP 0x00080000 +#define EXT_STATUS_ADAT_SLIP 0x00100000 +#define EXT_STATUS_TDIF_SLIP 0x00200000 +#define EXT_STATUS_ARX1_SLIP 0x00400000 +#define EXT_STATUS_ARX2_SLIP 0x00800000 +#define EXT_STATUS_ARX3_SLIP 0x01000000 +#define EXT_STATUS_ARX4_SLIP 0x02000000 +#define EXT_STATUS_WC_SLIP 0x04000000 + +/* + * The measured rate of the current clock source, in Hz; read-only. + */ +#define GLOBAL_SAMPLE_RATE 0x05c + +/* + * The version of the DICE driver specification that this device conforms to; + * read-only. + */ +#define GLOBAL_VERSION 0x060 + +/* Some old firmware versions do not have the following global registers: */ + +/* + * Supported sample rates and clock sources; read-only. + */ +#define GLOBAL_CLOCK_CAPABILITIES 0x064 +#define CLOCK_CAP_RATE_32000 0x00000001 +#define CLOCK_CAP_RATE_44100 0x00000002 +#define CLOCK_CAP_RATE_48000 0x00000004 +#define CLOCK_CAP_RATE_88200 0x00000008 +#define CLOCK_CAP_RATE_96000 0x00000010 +#define CLOCK_CAP_RATE_176400 0x00000020 +#define CLOCK_CAP_RATE_192000 0x00000040 +#define CLOCK_CAP_SOURCE_AES1 0x00010000 +#define CLOCK_CAP_SOURCE_AES2 0x00020000 +#define CLOCK_CAP_SOURCE_AES3 0x00040000 +#define CLOCK_CAP_SOURCE_AES4 0x00080000 +#define CLOCK_CAP_SOURCE_AES_ANY 0x00100000 +#define CLOCK_CAP_SOURCE_ADAT 0x00200000 +#define CLOCK_CAP_SOURCE_TDIF 0x00400000 +#define CLOCK_CAP_SOURCE_WC 0x00800000 +#define CLOCK_CAP_SOURCE_ARX1 0x01000000 +#define CLOCK_CAP_SOURCE_ARX2 0x02000000 +#define CLOCK_CAP_SOURCE_ARX3 0x04000000 +#define CLOCK_CAP_SOURCE_ARX4 0x08000000 +#define CLOCK_CAP_SOURCE_INTERNAL 0x10000000 + +/* + * Names of all clock sources; read-only. Quadlets are byte-swapped. Names + * are separated with one backslash, the list is terminated with two + * backslashes. Unused clock sources are included. + */ +#define GLOBAL_CLOCK_SOURCE_NAMES 0x068 +#define CLOCK_SOURCE_NAMES_SIZE 256 + +/* + * Capture stream settings. This section includes the number/size registers + * and the registers of all streams. + */ + +/* + * The number of supported capture streams; read-only. + */ +#define TX_NUMBER 0x000 + +/* + * The size of one stream's register block, in quadlets; read-only. The + * registers of the first stream follow immediately afterwards; the registers + * of the following streams are offset by this register's value. + */ +#define TX_SIZE 0x004 + +/* + * The isochronous channel number on which packets are sent, or -1 if the + * stream is not to be used; read/write. + */ +#define TX_ISOCHRONOUS 0x008 + +/* + * The number of audio channels; read-only. There will be one quadlet per + * channel; the first channel is the first quadlet in a data block. + */ +#define TX_NUMBER_AUDIO 0x00c + +/* + * The number of MIDI ports, 0-8; read-only. If > 0, there will be one + * additional quadlet in each data block, following the audio quadlets. + */ +#define TX_NUMBER_MIDI 0x010 + +/* + * The speed at which the packets are sent, SCODE_100-_400; read/write. + */ +#define TX_SPEED 0x014 + +/* + * Names of all audio channels; read-only. Quadlets are byte-swapped. Names + * are separated with one backslash, the list is terminated with two + * backslashes. + */ +#define TX_NAMES 0x018 +#define TX_NAMES_SIZE 256 + +/* + * Audio IEC60958 capabilities; read-only. Bitmask with one bit per audio + * channel. + */ +#define TX_AC3_CAPABILITIES 0x118 + +/* + * Send audio data with IEC60958 label; read/write. Bitmask with one bit per + * audio channel. This register can be changed even while the stream is + * running. + */ +#define TX_AC3_ENABLE 0x11c + +/* + * Playback stream settings. This section includes the number/size registers + * and the registers of all streams. + */ + +/* + * The number of supported playback streams; read-only. + */ +#define RX_NUMBER 0x000 + +/* + * The size of one stream's register block, in quadlets; read-only. The + * registers of the first stream follow immediately afterwards; the registers + * of the following streams are offset by this register's value. + */ +#define RX_SIZE 0x004 + +/* + * The isochronous channel number on which packets are received, or -1 if the + * stream is not to be used; read/write. + */ +#define RX_ISOCHRONOUS 0x008 + +/* + * Index of first quadlet to be interpreted; read/write. If > 0, that many + * quadlets at the beginning of each data block will be ignored, and all the + * audio and MIDI quadlets will follow. + */ +#define RX_SEQ_START 0x00c + +/* + * The number of audio channels; read-only. There will be one quadlet per + * channel. + */ +#define RX_NUMBER_AUDIO 0x010 + +/* + * The number of MIDI ports, 0-8; read-only. If > 0, there will be one + * additional quadlet in each data block, following the audio quadlets. + */ +#define RX_NUMBER_MIDI 0x014 + +/* + * Names of all audio channels; read-only. Quadlets are byte-swapped. Names + * are separated with one backslash, the list is terminated with two + * backslashes. + */ +#define RX_NAMES 0x018 +#define RX_NAMES_SIZE 256 + +/* + * Audio IEC60958 capabilities; read-only. Bitmask with one bit per audio + * channel. + */ +#define RX_AC3_CAPABILITIES 0x118 + +/* + * Receive audio data with IEC60958 label; read/write. Bitmask with one bit + * per audio channel. This register can be changed even while the stream is + * running. + */ +#define RX_AC3_ENABLE 0x11c + +/* + * Extended synchronization information. + * This section can be read completely with a block read request. + */ + +/* + * Current clock source; read-only. + */ +#define EXT_SYNC_CLOCK_SOURCE 0x000 + +/* + * Clock source is locked (boolean); read-only. + */ +#define EXT_SYNC_LOCKED 0x004 + +/* + * Current sample rate (CLOCK_RATE_* >> CLOCK_RATE_SHIFT), _32000-_192000 or + * _NONE; read-only. + */ +#define EXT_SYNC_RATE 0x008 + +/* + * ADAT user data bits; read-only. + */ +#define EXT_SYNC_ADAT_USER_DATA 0x00c +/* The data bits, if available. */ +#define ADAT_USER_DATA_MASK 0x0f +/* The data bits are not available. */ +#define ADAT_USER_DATA_NO_DATA 0x10 + +#endif diff --git a/kernel/sound/firewire/dice/dice-midi.c b/kernel/sound/firewire/dice/dice-midi.c new file mode 100644 index 000000000..fe43ce791 --- /dev/null +++ b/kernel/sound/firewire/dice/dice-midi.c @@ -0,0 +1,157 @@ +/* + * dice_midi.c - a part of driver for Dice based devices + * + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ +#include "dice.h" + +static int midi_open(struct snd_rawmidi_substream *substream) +{ + struct snd_dice *dice = substream->rmidi->private_data; + int err; + + err = snd_dice_stream_lock_try(dice); + if (err < 0) + return err; + + mutex_lock(&dice->mutex); + + dice->substreams_counter++; + err = snd_dice_stream_start_duplex(dice, 0); + + mutex_unlock(&dice->mutex); + + if (err < 0) + snd_dice_stream_lock_release(dice); + + return err; +} + +static int midi_close(struct snd_rawmidi_substream *substream) +{ + struct snd_dice *dice = substream->rmidi->private_data; + + mutex_lock(&dice->mutex); + + dice->substreams_counter--; + snd_dice_stream_stop_duplex(dice); + + mutex_unlock(&dice->mutex); + + snd_dice_stream_lock_release(dice); + return 0; +} + +static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up) +{ + struct snd_dice *dice = substrm->rmidi->private_data; + unsigned long flags; + + spin_lock_irqsave(&dice->lock, flags); + + if (up) + amdtp_stream_midi_trigger(&dice->tx_stream, + substrm->number, substrm); + else + amdtp_stream_midi_trigger(&dice->tx_stream, + substrm->number, NULL); + + spin_unlock_irqrestore(&dice->lock, flags); +} + +static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up) +{ + struct snd_dice *dice = substrm->rmidi->private_data; + unsigned long flags; + + spin_lock_irqsave(&dice->lock, flags); + + if (up) + amdtp_stream_midi_trigger(&dice->rx_stream, + substrm->number, substrm); + else + amdtp_stream_midi_trigger(&dice->rx_stream, + substrm->number, NULL); + + spin_unlock_irqrestore(&dice->lock, flags); +} + +static struct snd_rawmidi_ops capture_ops = { + .open = midi_open, + .close = midi_close, + .trigger = midi_capture_trigger, +}; + +static struct snd_rawmidi_ops playback_ops = { + .open = midi_open, + .close = midi_close, + .trigger = midi_playback_trigger, +}; + +static void set_midi_substream_names(struct snd_dice *dice, + struct snd_rawmidi_str *str) +{ + struct snd_rawmidi_substream *subs; + + list_for_each_entry(subs, &str->substreams, list) { + snprintf(subs->name, sizeof(subs->name), + "%s MIDI %d", dice->card->shortname, subs->number + 1); + } +} + +int snd_dice_create_midi(struct snd_dice *dice) +{ + struct snd_rawmidi *rmidi; + struct snd_rawmidi_str *str; + unsigned int i, midi_in_ports, midi_out_ports; + int err; + + midi_in_ports = midi_out_ports = 0; + for (i = 0; i < 3; i++) { + midi_in_ports = max(dice->tx_midi_ports[i], midi_in_ports); + midi_out_ports = max(dice->rx_midi_ports[i], midi_out_ports); + } + + if (midi_in_ports + midi_out_ports == 0) + return 0; + + /* create midi ports */ + err = snd_rawmidi_new(dice->card, dice->card->driver, 0, + midi_out_ports, midi_in_ports, + &rmidi); + if (err < 0) + return err; + + snprintf(rmidi->name, sizeof(rmidi->name), + "%s MIDI", dice->card->shortname); + rmidi->private_data = dice; + + if (midi_in_ports > 0) { + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; + + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, + &capture_ops); + + str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]; + + set_midi_substream_names(dice, str); + } + + if (midi_out_ports > 0) { + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; + + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, + &playback_ops); + + str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]; + + set_midi_substream_names(dice, str); + } + + if ((midi_out_ports > 0) && (midi_in_ports > 0)) + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX; + + return 0; +} diff --git a/kernel/sound/firewire/dice/dice-pcm.c b/kernel/sound/firewire/dice/dice-pcm.c new file mode 100644 index 000000000..f77714511 --- /dev/null +++ b/kernel/sound/firewire/dice/dice-pcm.c @@ -0,0 +1,422 @@ +/* + * dice_pcm.c - a part of driver for DICE based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Copyright (c) 2014 Takashi Sakamoto <o-takashi@sakamocchi.jp> + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "dice.h" + +static int dice_rate_constraint(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_pcm_substream *substream = rule->private; + struct snd_dice *dice = substream->private_data; + + const struct snd_interval *c = + hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS); + struct snd_interval *r = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval rates = { + .min = UINT_MAX, .max = 0, .integer = 1 + }; + unsigned int i, rate, mode, *pcm_channels; + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) + pcm_channels = dice->tx_channels; + else + pcm_channels = dice->rx_channels; + + for (i = 0; i < ARRAY_SIZE(snd_dice_rates); ++i) { + rate = snd_dice_rates[i]; + if (snd_dice_stream_get_rate_mode(dice, rate, &mode) < 0) + continue; + + if (!snd_interval_test(c, pcm_channels[mode])) + continue; + + rates.min = min(rates.min, rate); + rates.max = max(rates.max, rate); + } + + return snd_interval_refine(r, &rates); +} + +static int dice_channels_constraint(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + struct snd_pcm_substream *substream = rule->private; + struct snd_dice *dice = substream->private_data; + + const struct snd_interval *r = + hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval *c = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + struct snd_interval channels = { + .min = UINT_MAX, .max = 0, .integer = 1 + }; + unsigned int i, rate, mode, *pcm_channels; + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) + pcm_channels = dice->tx_channels; + else + pcm_channels = dice->rx_channels; + + for (i = 0; i < ARRAY_SIZE(snd_dice_rates); ++i) { + rate = snd_dice_rates[i]; + if (snd_dice_stream_get_rate_mode(dice, rate, &mode) < 0) + continue; + + if (!snd_interval_test(r, rate)) + continue; + + channels.min = min(channels.min, pcm_channels[mode]); + channels.max = max(channels.max, pcm_channels[mode]); + } + + return snd_interval_refine(c, &channels); +} + +static void limit_channels_and_rates(struct snd_dice *dice, + struct snd_pcm_runtime *runtime, + unsigned int *pcm_channels) +{ + struct snd_pcm_hardware *hw = &runtime->hw; + unsigned int i, rate, mode; + + hw->channels_min = UINT_MAX; + hw->channels_max = 0; + + for (i = 0; i < ARRAY_SIZE(snd_dice_rates); ++i) { + rate = snd_dice_rates[i]; + if (snd_dice_stream_get_rate_mode(dice, rate, &mode) < 0) + continue; + hw->rates |= snd_pcm_rate_to_rate_bit(rate); + + if (pcm_channels[mode] == 0) + continue; + hw->channels_min = min(hw->channels_min, pcm_channels[mode]); + hw->channels_max = max(hw->channels_max, pcm_channels[mode]); + } + + snd_pcm_limit_hw_rates(runtime); +} + +static void limit_period_and_buffer(struct snd_pcm_hardware *hw) +{ + hw->periods_min = 2; /* SNDRV_PCM_INFO_BATCH */ + hw->periods_max = UINT_MAX; + + hw->period_bytes_min = 4 * hw->channels_max; /* byte for a frame */ + + /* Just to prevent from allocating much pages. */ + hw->period_bytes_max = hw->period_bytes_min * 2048; + hw->buffer_bytes_max = hw->period_bytes_max * hw->periods_min; +} + +static int init_hw_info(struct snd_dice *dice, + struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_pcm_hardware *hw = &runtime->hw; + struct amdtp_stream *stream; + unsigned int *pcm_channels; + int err; + + hw->info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_JOINT_DUPLEX | + SNDRV_PCM_INFO_BLOCK_TRANSFER; + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { + hw->formats = AMDTP_IN_PCM_FORMAT_BITS; + stream = &dice->tx_stream; + pcm_channels = dice->tx_channels; + } else { + hw->formats = AMDTP_OUT_PCM_FORMAT_BITS; + stream = &dice->rx_stream; + pcm_channels = dice->rx_channels; + } + + limit_channels_and_rates(dice, runtime, pcm_channels); + limit_period_and_buffer(hw); + + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + dice_rate_constraint, substream, + SNDRV_PCM_HW_PARAM_CHANNELS, -1); + if (err < 0) + goto end; + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + dice_channels_constraint, substream, + SNDRV_PCM_HW_PARAM_RATE, -1); + if (err < 0) + goto end; + + err = amdtp_stream_add_pcm_hw_constraints(stream, runtime); +end: + return err; +} + +static int pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + unsigned int source, rate; + bool internal; + int err; + + err = snd_dice_stream_lock_try(dice); + if (err < 0) + goto end; + + err = init_hw_info(dice, substream); + if (err < 0) + goto err_locked; + + err = snd_dice_transaction_get_clock_source(dice, &source); + if (err < 0) + goto err_locked; + switch (source) { + case CLOCK_SOURCE_AES1: + case CLOCK_SOURCE_AES2: + case CLOCK_SOURCE_AES3: + case CLOCK_SOURCE_AES4: + case CLOCK_SOURCE_AES_ANY: + case CLOCK_SOURCE_ADAT: + case CLOCK_SOURCE_TDIF: + case CLOCK_SOURCE_WC: + internal = false; + break; + default: + internal = true; + break; + } + + /* + * When source of clock is not internal or any PCM streams are running, + * available sampling rate is limited at current sampling rate. + */ + if (!internal || + amdtp_stream_pcm_running(&dice->tx_stream) || + amdtp_stream_pcm_running(&dice->rx_stream)) { + err = snd_dice_transaction_get_rate(dice, &rate); + if (err < 0) + goto err_locked; + substream->runtime->hw.rate_min = rate; + substream->runtime->hw.rate_max = rate; + } + + snd_pcm_set_sync(substream); +end: + return err; +err_locked: + snd_dice_stream_lock_release(dice); + return err; +} + +static int pcm_close(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + + snd_dice_stream_lock_release(dice); + + return 0; +} + +static int capture_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_dice *dice = substream->private_data; + + if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) { + mutex_lock(&dice->mutex); + dice->substreams_counter++; + mutex_unlock(&dice->mutex); + } + + amdtp_stream_set_pcm_format(&dice->tx_stream, + params_format(hw_params)); + + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); +} +static int playback_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_dice *dice = substream->private_data; + + if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) { + mutex_lock(&dice->mutex); + dice->substreams_counter++; + mutex_unlock(&dice->mutex); + } + + amdtp_stream_set_pcm_format(&dice->rx_stream, + params_format(hw_params)); + + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); +} + +static int capture_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + + mutex_lock(&dice->mutex); + + if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) + dice->substreams_counter--; + + snd_dice_stream_stop_duplex(dice); + + mutex_unlock(&dice->mutex); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} + +static int playback_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + + mutex_lock(&dice->mutex); + + if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) + dice->substreams_counter--; + + snd_dice_stream_stop_duplex(dice); + + mutex_unlock(&dice->mutex); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} + +static int capture_prepare(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + int err; + + mutex_lock(&dice->mutex); + err = snd_dice_stream_start_duplex(dice, substream->runtime->rate); + mutex_unlock(&dice->mutex); + if (err >= 0) + amdtp_stream_pcm_prepare(&dice->tx_stream); + + return 0; +} +static int playback_prepare(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + int err; + + mutex_lock(&dice->mutex); + err = snd_dice_stream_start_duplex(dice, substream->runtime->rate); + mutex_unlock(&dice->mutex); + if (err >= 0) + amdtp_stream_pcm_prepare(&dice->rx_stream); + + return err; +} + +static int capture_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_dice *dice = substream->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + amdtp_stream_pcm_trigger(&dice->tx_stream, substream); + break; + case SNDRV_PCM_TRIGGER_STOP: + amdtp_stream_pcm_trigger(&dice->tx_stream, NULL); + break; + default: + return -EINVAL; + } + + return 0; +} +static int playback_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_dice *dice = substream->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + amdtp_stream_pcm_trigger(&dice->rx_stream, substream); + break; + case SNDRV_PCM_TRIGGER_STOP: + amdtp_stream_pcm_trigger(&dice->rx_stream, NULL); + break; + default: + return -EINVAL; + } + + return 0; +} + +static snd_pcm_uframes_t capture_pointer(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + + return amdtp_stream_pcm_pointer(&dice->tx_stream); +} +static snd_pcm_uframes_t playback_pointer(struct snd_pcm_substream *substream) +{ + struct snd_dice *dice = substream->private_data; + + return amdtp_stream_pcm_pointer(&dice->rx_stream); +} + +int snd_dice_create_pcm(struct snd_dice *dice) +{ + static struct snd_pcm_ops capture_ops = { + .open = pcm_open, + .close = pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = capture_hw_params, + .hw_free = capture_hw_free, + .prepare = capture_prepare, + .trigger = capture_trigger, + .pointer = capture_pointer, + .page = snd_pcm_lib_get_vmalloc_page, + .mmap = snd_pcm_lib_mmap_vmalloc, + }; + static struct snd_pcm_ops playback_ops = { + .open = pcm_open, + .close = pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = playback_hw_params, + .hw_free = playback_hw_free, + .prepare = playback_prepare, + .trigger = playback_trigger, + .pointer = playback_pointer, + .page = snd_pcm_lib_get_vmalloc_page, + .mmap = snd_pcm_lib_mmap_vmalloc, + }; + struct snd_pcm *pcm; + unsigned int i, capture, playback; + int err; + + capture = playback = 0; + for (i = 0; i < 3; i++) { + if (dice->tx_channels[i] > 0) + capture = 1; + if (dice->rx_channels[i] > 0) + playback = 1; + } + + err = snd_pcm_new(dice->card, "DICE", 0, playback, capture, &pcm); + if (err < 0) + return err; + pcm->private_data = dice; + strcpy(pcm->name, dice->card->shortname); + + if (capture > 0) + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops); + + if (playback > 0) + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops); + + return 0; +} diff --git a/kernel/sound/firewire/dice/dice-proc.c b/kernel/sound/firewire/dice/dice-proc.c new file mode 100644 index 000000000..f5c1d1bce --- /dev/null +++ b/kernel/sound/firewire/dice/dice-proc.c @@ -0,0 +1,252 @@ +/* + * dice_proc.c - a part of driver for Dice based devices + * + * Copyright (c) Clemens Ladisch + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "dice.h" + +static int dice_proc_read_mem(struct snd_dice *dice, void *buffer, + unsigned int offset_q, unsigned int quadlets) +{ + unsigned int i; + int err; + + err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, + DICE_PRIVATE_SPACE + 4 * offset_q, + buffer, 4 * quadlets, 0); + if (err < 0) + return err; + + for (i = 0; i < quadlets; ++i) + be32_to_cpus(&((u32 *)buffer)[i]); + + return 0; +} + +static const char *str_from_array(const char *const strs[], unsigned int count, + unsigned int i) +{ + if (i < count) + return strs[i]; + + return "(unknown)"; +} + +static void dice_proc_fixup_string(char *s, unsigned int size) +{ + unsigned int i; + + for (i = 0; i < size; i += 4) + cpu_to_le32s((u32 *)(s + i)); + + for (i = 0; i < size - 2; ++i) { + if (s[i] == '\0') + return; + if (s[i] == '\\' && s[i + 1] == '\\') { + s[i + 2] = '\0'; + return; + } + } + s[size - 1] = '\0'; +} + +static void dice_proc_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + static const char *const section_names[5] = { + "global", "tx", "rx", "ext_sync", "unused2" + }; + static const char *const clock_sources[] = { + "aes1", "aes2", "aes3", "aes4", "aes", "adat", "tdif", + "wc", "arx1", "arx2", "arx3", "arx4", "internal" + }; + static const char *const rates[] = { + "32000", "44100", "48000", "88200", "96000", "176400", "192000", + "any low", "any mid", "any high", "none" + }; + struct snd_dice *dice = entry->private_data; + u32 sections[ARRAY_SIZE(section_names) * 2]; + struct { + u32 number; + u32 size; + } tx_rx_header; + union { + struct { + u32 owner_hi, owner_lo; + u32 notification; + char nick_name[NICK_NAME_SIZE]; + u32 clock_select; + u32 enable; + u32 status; + u32 extended_status; + u32 sample_rate; + u32 version; + u32 clock_caps; + char clock_source_names[CLOCK_SOURCE_NAMES_SIZE]; + } global; + struct { + u32 iso; + u32 number_audio; + u32 number_midi; + u32 speed; + char names[TX_NAMES_SIZE]; + u32 ac3_caps; + u32 ac3_enable; + } tx; + struct { + u32 iso; + u32 seq_start; + u32 number_audio; + u32 number_midi; + char names[RX_NAMES_SIZE]; + u32 ac3_caps; + u32 ac3_enable; + } rx; + struct { + u32 clock_source; + u32 locked; + u32 rate; + u32 adat_user_data; + } ext_sync; + } buf; + unsigned int quadlets, stream, i; + + if (dice_proc_read_mem(dice, sections, 0, ARRAY_SIZE(sections)) < 0) + return; + snd_iprintf(buffer, "sections:\n"); + for (i = 0; i < ARRAY_SIZE(section_names); ++i) + snd_iprintf(buffer, " %s: offset %u, size %u\n", + section_names[i], + sections[i * 2], sections[i * 2 + 1]); + + quadlets = min_t(u32, sections[1], sizeof(buf.global) / 4); + if (dice_proc_read_mem(dice, &buf.global, sections[0], quadlets) < 0) + return; + snd_iprintf(buffer, "global:\n"); + snd_iprintf(buffer, " owner: %04x:%04x%08x\n", + buf.global.owner_hi >> 16, + buf.global.owner_hi & 0xffff, buf.global.owner_lo); + snd_iprintf(buffer, " notification: %08x\n", buf.global.notification); + dice_proc_fixup_string(buf.global.nick_name, NICK_NAME_SIZE); + snd_iprintf(buffer, " nick name: %s\n", buf.global.nick_name); + snd_iprintf(buffer, " clock select: %s %s\n", + str_from_array(clock_sources, ARRAY_SIZE(clock_sources), + buf.global.clock_select & CLOCK_SOURCE_MASK), + str_from_array(rates, ARRAY_SIZE(rates), + (buf.global.clock_select & CLOCK_RATE_MASK) + >> CLOCK_RATE_SHIFT)); + snd_iprintf(buffer, " enable: %u\n", buf.global.enable); + snd_iprintf(buffer, " status: %slocked %s\n", + buf.global.status & STATUS_SOURCE_LOCKED ? "" : "un", + str_from_array(rates, ARRAY_SIZE(rates), + (buf.global.status & + STATUS_NOMINAL_RATE_MASK) + >> CLOCK_RATE_SHIFT)); + snd_iprintf(buffer, " ext status: %08x\n", buf.global.extended_status); + snd_iprintf(buffer, " sample rate: %u\n", buf.global.sample_rate); + snd_iprintf(buffer, " version: %u.%u.%u.%u\n", + (buf.global.version >> 24) & 0xff, + (buf.global.version >> 16) & 0xff, + (buf.global.version >> 8) & 0xff, + (buf.global.version >> 0) & 0xff); + if (quadlets >= 90) { + snd_iprintf(buffer, " clock caps:"); + for (i = 0; i <= 6; ++i) + if (buf.global.clock_caps & (1 << i)) + snd_iprintf(buffer, " %s", rates[i]); + for (i = 0; i <= 12; ++i) + if (buf.global.clock_caps & (1 << (16 + i))) + snd_iprintf(buffer, " %s", clock_sources[i]); + snd_iprintf(buffer, "\n"); + dice_proc_fixup_string(buf.global.clock_source_names, + CLOCK_SOURCE_NAMES_SIZE); + snd_iprintf(buffer, " clock source names: %s\n", + buf.global.clock_source_names); + } + + if (dice_proc_read_mem(dice, &tx_rx_header, sections[2], 2) < 0) + return; + quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.tx) / 4); + for (stream = 0; stream < tx_rx_header.number; ++stream) { + if (dice_proc_read_mem(dice, &buf.tx, sections[2] + 2 + + stream * tx_rx_header.size, + quadlets) < 0) + break; + snd_iprintf(buffer, "tx %u:\n", stream); + snd_iprintf(buffer, " iso channel: %d\n", (int)buf.tx.iso); + snd_iprintf(buffer, " audio channels: %u\n", + buf.tx.number_audio); + snd_iprintf(buffer, " midi ports: %u\n", buf.tx.number_midi); + snd_iprintf(buffer, " speed: S%u\n", 100u << buf.tx.speed); + if (quadlets >= 68) { + dice_proc_fixup_string(buf.tx.names, TX_NAMES_SIZE); + snd_iprintf(buffer, " names: %s\n", buf.tx.names); + } + if (quadlets >= 70) { + snd_iprintf(buffer, " ac3 caps: %08x\n", + buf.tx.ac3_caps); + snd_iprintf(buffer, " ac3 enable: %08x\n", + buf.tx.ac3_enable); + } + } + + if (dice_proc_read_mem(dice, &tx_rx_header, sections[4], 2) < 0) + return; + quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.rx) / 4); + for (stream = 0; stream < tx_rx_header.number; ++stream) { + if (dice_proc_read_mem(dice, &buf.rx, sections[4] + 2 + + stream * tx_rx_header.size, + quadlets) < 0) + break; + snd_iprintf(buffer, "rx %u:\n", stream); + snd_iprintf(buffer, " iso channel: %d\n", (int)buf.rx.iso); + snd_iprintf(buffer, " sequence start: %u\n", buf.rx.seq_start); + snd_iprintf(buffer, " audio channels: %u\n", + buf.rx.number_audio); + snd_iprintf(buffer, " midi ports: %u\n", buf.rx.number_midi); + if (quadlets >= 68) { + dice_proc_fixup_string(buf.rx.names, RX_NAMES_SIZE); + snd_iprintf(buffer, " names: %s\n", buf.rx.names); + } + if (quadlets >= 70) { + snd_iprintf(buffer, " ac3 caps: %08x\n", + buf.rx.ac3_caps); + snd_iprintf(buffer, " ac3 enable: %08x\n", + buf.rx.ac3_enable); + } + } + + quadlets = min_t(u32, sections[7], sizeof(buf.ext_sync) / 4); + if (quadlets >= 4) { + if (dice_proc_read_mem(dice, &buf.ext_sync, + sections[6], 4) < 0) + return; + snd_iprintf(buffer, "ext status:\n"); + snd_iprintf(buffer, " clock source: %s\n", + str_from_array(clock_sources, + ARRAY_SIZE(clock_sources), + buf.ext_sync.clock_source)); + snd_iprintf(buffer, " locked: %u\n", buf.ext_sync.locked); + snd_iprintf(buffer, " rate: %s\n", + str_from_array(rates, ARRAY_SIZE(rates), + buf.ext_sync.rate)); + snd_iprintf(buffer, " adat user data: "); + if (buf.ext_sync.adat_user_data & ADAT_USER_DATA_NO_DATA) + snd_iprintf(buffer, "-\n"); + else + snd_iprintf(buffer, "%x\n", + buf.ext_sync.adat_user_data); + } +} + +void snd_dice_create_proc(struct snd_dice *dice) +{ + struct snd_info_entry *entry; + + if (!snd_card_proc_new(dice->card, "dice", &entry)) + snd_info_set_text_ops(entry, dice, dice_proc_read); +} diff --git a/kernel/sound/firewire/dice/dice-stream.c b/kernel/sound/firewire/dice/dice-stream.c new file mode 100644 index 000000000..07dbd01d7 --- /dev/null +++ b/kernel/sound/firewire/dice/dice-stream.c @@ -0,0 +1,413 @@ +/* + * dice_stream.c - a part of driver for DICE based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Copyright (c) 2014 Takashi Sakamoto <o-takashi@sakamocchi.jp> + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "dice.h" + +#define CALLBACK_TIMEOUT 200 + +const unsigned int snd_dice_rates[SND_DICE_RATES_COUNT] = { + /* mode 0 */ + [0] = 32000, + [1] = 44100, + [2] = 48000, + /* mode 1 */ + [3] = 88200, + [4] = 96000, + /* mode 2 */ + [5] = 176400, + [6] = 192000, +}; + +int snd_dice_stream_get_rate_mode(struct snd_dice *dice, unsigned int rate, + unsigned int *mode) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(snd_dice_rates); i++) { + if (!(dice->clock_caps & BIT(i))) + continue; + if (snd_dice_rates[i] != rate) + continue; + + *mode = (i - 1) / 2; + return 0; + } + return -EINVAL; +} + +static void release_resources(struct snd_dice *dice, + struct fw_iso_resources *resources) +{ + unsigned int channel; + + /* Reset channel number */ + channel = cpu_to_be32((u32)-1); + if (resources == &dice->tx_resources) + snd_dice_transaction_write_tx(dice, TX_ISOCHRONOUS, + &channel, 4); + else + snd_dice_transaction_write_rx(dice, RX_ISOCHRONOUS, + &channel, 4); + + fw_iso_resources_free(resources); +} + +static int keep_resources(struct snd_dice *dice, + struct fw_iso_resources *resources, + unsigned int max_payload_bytes) +{ + unsigned int channel; + int err; + + err = fw_iso_resources_allocate(resources, max_payload_bytes, + fw_parent_device(dice->unit)->max_speed); + if (err < 0) + goto end; + + /* Set channel number */ + channel = cpu_to_be32(resources->channel); + if (resources == &dice->tx_resources) + err = snd_dice_transaction_write_tx(dice, TX_ISOCHRONOUS, + &channel, 4); + else + err = snd_dice_transaction_write_rx(dice, RX_ISOCHRONOUS, + &channel, 4); + if (err < 0) + release_resources(dice, resources); +end: + return err; +} + +static void stop_stream(struct snd_dice *dice, struct amdtp_stream *stream) +{ + amdtp_stream_pcm_abort(stream); + amdtp_stream_stop(stream); + + if (stream == &dice->tx_stream) + release_resources(dice, &dice->tx_resources); + else + release_resources(dice, &dice->rx_resources); +} + +static int start_stream(struct snd_dice *dice, struct amdtp_stream *stream, + unsigned int rate) +{ + struct fw_iso_resources *resources; + unsigned int i, mode, pcm_chs, midi_ports; + int err; + + err = snd_dice_stream_get_rate_mode(dice, rate, &mode); + if (err < 0) + goto end; + if (stream == &dice->tx_stream) { + resources = &dice->tx_resources; + pcm_chs = dice->tx_channels[mode]; + midi_ports = dice->tx_midi_ports[mode]; + } else { + resources = &dice->rx_resources; + pcm_chs = dice->rx_channels[mode]; + midi_ports = dice->rx_midi_ports[mode]; + } + + /* + * At 176.4/192.0 kHz, Dice has a quirk to transfer two PCM frames in + * one data block of AMDTP packet. Thus sampling transfer frequency is + * a half of PCM sampling frequency, i.e. PCM frames at 192.0 kHz are + * transferred on AMDTP packets at 96 kHz. Two successive samples of a + * channel are stored consecutively in the packet. This quirk is called + * as 'Dual Wire'. + * For this quirk, blocking mode is required and PCM buffer size should + * be aligned to SYT_INTERVAL. + */ + if (mode > 1) { + rate /= 2; + pcm_chs *= 2; + stream->double_pcm_frames = true; + } else { + stream->double_pcm_frames = false; + } + + amdtp_stream_set_parameters(stream, rate, pcm_chs, midi_ports); + if (mode > 1) { + pcm_chs /= 2; + + for (i = 0; i < pcm_chs; i++) { + stream->pcm_positions[i] = i * 2; + stream->pcm_positions[i + pcm_chs] = i * 2 + 1; + } + } + + err = keep_resources(dice, resources, + amdtp_stream_get_max_payload(stream)); + if (err < 0) { + dev_err(&dice->unit->device, + "fail to keep isochronous resources\n"); + goto end; + } + + err = amdtp_stream_start(stream, resources->channel, + fw_parent_device(dice->unit)->max_speed); + if (err < 0) + release_resources(dice, resources); +end: + return err; +} + +static int get_sync_mode(struct snd_dice *dice, enum cip_flags *sync_mode) +{ + u32 source; + int err; + + err = snd_dice_transaction_get_clock_source(dice, &source); + if (err < 0) + goto end; + + switch (source) { + /* So-called 'SYT Match' modes, sync_to_syt value of packets received */ + case CLOCK_SOURCE_ARX4: /* in 4th stream */ + case CLOCK_SOURCE_ARX3: /* in 3rd stream */ + case CLOCK_SOURCE_ARX2: /* in 2nd stream */ + err = -ENOSYS; + break; + case CLOCK_SOURCE_ARX1: /* in 1st stream, which this driver uses */ + *sync_mode = 0; + break; + default: + *sync_mode = CIP_SYNC_TO_DEVICE; + break; + } +end: + return err; +} + +int snd_dice_stream_start_duplex(struct snd_dice *dice, unsigned int rate) +{ + struct amdtp_stream *master, *slave; + unsigned int curr_rate; + enum cip_flags sync_mode; + int err = 0; + + if (dice->substreams_counter == 0) + goto end; + + err = get_sync_mode(dice, &sync_mode); + if (err < 0) + goto end; + if (sync_mode == CIP_SYNC_TO_DEVICE) { + master = &dice->tx_stream; + slave = &dice->rx_stream; + } else { + master = &dice->rx_stream; + slave = &dice->tx_stream; + } + + /* Some packet queueing errors. */ + if (amdtp_streaming_error(master) || amdtp_streaming_error(slave)) + stop_stream(dice, master); + + /* Stop stream if rate is different. */ + err = snd_dice_transaction_get_rate(dice, &curr_rate); + if (err < 0) { + dev_err(&dice->unit->device, + "fail to get sampling rate\n"); + goto end; + } + if (rate == 0) + rate = curr_rate; + if (rate != curr_rate) + stop_stream(dice, master); + + if (!amdtp_stream_running(master)) { + stop_stream(dice, slave); + snd_dice_transaction_clear_enable(dice); + + amdtp_stream_set_sync(sync_mode, master, slave); + + err = snd_dice_transaction_set_rate(dice, rate); + if (err < 0) { + dev_err(&dice->unit->device, + "fail to set sampling rate\n"); + goto end; + } + + /* Start both streams. */ + err = start_stream(dice, master, rate); + if (err < 0) { + dev_err(&dice->unit->device, + "fail to start AMDTP master stream\n"); + goto end; + } + err = start_stream(dice, slave, rate); + if (err < 0) { + dev_err(&dice->unit->device, + "fail to start AMDTP slave stream\n"); + stop_stream(dice, master); + goto end; + } + err = snd_dice_transaction_set_enable(dice); + if (err < 0) { + dev_err(&dice->unit->device, + "fail to enable interface\n"); + stop_stream(dice, master); + stop_stream(dice, slave); + goto end; + } + + /* Wait first callbacks */ + if (!amdtp_stream_wait_callback(master, CALLBACK_TIMEOUT) || + !amdtp_stream_wait_callback(slave, CALLBACK_TIMEOUT)) { + snd_dice_transaction_clear_enable(dice); + stop_stream(dice, master); + stop_stream(dice, slave); + err = -ETIMEDOUT; + } + } +end: + return err; +} + +void snd_dice_stream_stop_duplex(struct snd_dice *dice) +{ + if (dice->substreams_counter > 0) + return; + + snd_dice_transaction_clear_enable(dice); + + stop_stream(dice, &dice->tx_stream); + stop_stream(dice, &dice->rx_stream); +} + +static int init_stream(struct snd_dice *dice, struct amdtp_stream *stream) +{ + int err; + struct fw_iso_resources *resources; + enum amdtp_stream_direction dir; + + if (stream == &dice->tx_stream) { + resources = &dice->tx_resources; + dir = AMDTP_IN_STREAM; + } else { + resources = &dice->rx_resources; + dir = AMDTP_OUT_STREAM; + } + + err = fw_iso_resources_init(resources, dice->unit); + if (err < 0) + goto end; + resources->channels_mask = 0x00000000ffffffffuLL; + + err = amdtp_stream_init(stream, dice->unit, dir, CIP_BLOCKING); + if (err < 0) { + amdtp_stream_destroy(stream); + fw_iso_resources_destroy(resources); + } +end: + return err; +} + +/* + * This function should be called before starting streams or after stopping + * streams. + */ +static void destroy_stream(struct snd_dice *dice, struct amdtp_stream *stream) +{ + struct fw_iso_resources *resources; + + if (stream == &dice->tx_stream) + resources = &dice->tx_resources; + else + resources = &dice->rx_resources; + + amdtp_stream_destroy(stream); + fw_iso_resources_destroy(resources); +} + +int snd_dice_stream_init_duplex(struct snd_dice *dice) +{ + int err; + + dice->substreams_counter = 0; + + err = init_stream(dice, &dice->tx_stream); + if (err < 0) + goto end; + + err = init_stream(dice, &dice->rx_stream); + if (err < 0) + destroy_stream(dice, &dice->tx_stream); +end: + return err; +} + +void snd_dice_stream_destroy_duplex(struct snd_dice *dice) +{ + snd_dice_transaction_clear_enable(dice); + + destroy_stream(dice, &dice->tx_stream); + destroy_stream(dice, &dice->rx_stream); + + dice->substreams_counter = 0; +} + +void snd_dice_stream_update_duplex(struct snd_dice *dice) +{ + /* + * On a bus reset, the DICE firmware disables streaming and then goes + * off contemplating its own navel for hundreds of milliseconds before + * it can react to any of our attempts to reenable streaming. This + * means that we lose synchronization anyway, so we force our streams + * to stop so that the application can restart them in an orderly + * manner. + */ + dice->global_enabled = false; + + stop_stream(dice, &dice->rx_stream); + stop_stream(dice, &dice->tx_stream); + + fw_iso_resources_update(&dice->rx_resources); + fw_iso_resources_update(&dice->tx_resources); +} + +static void dice_lock_changed(struct snd_dice *dice) +{ + dice->dev_lock_changed = true; + wake_up(&dice->hwdep_wait); +} + +int snd_dice_stream_lock_try(struct snd_dice *dice) +{ + int err; + + spin_lock_irq(&dice->lock); + + if (dice->dev_lock_count < 0) { + err = -EBUSY; + goto out; + } + + if (dice->dev_lock_count++ == 0) + dice_lock_changed(dice); + err = 0; +out: + spin_unlock_irq(&dice->lock); + return err; +} + +void snd_dice_stream_lock_release(struct snd_dice *dice) +{ + spin_lock_irq(&dice->lock); + + if (WARN_ON(dice->dev_lock_count <= 0)) + goto out; + + if (--dice->dev_lock_count == 0) + dice_lock_changed(dice); +out: + spin_unlock_irq(&dice->lock); +} diff --git a/kernel/sound/firewire/dice/dice-transaction.c b/kernel/sound/firewire/dice/dice-transaction.c new file mode 100644 index 000000000..aee746187 --- /dev/null +++ b/kernel/sound/firewire/dice/dice-transaction.c @@ -0,0 +1,382 @@ +/* + * dice_transaction.c - a part of driver for Dice based devices + * + * Copyright (c) Clemens Ladisch + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "dice.h" + +#define NOTIFICATION_TIMEOUT_MS 100 + +static u64 get_subaddr(struct snd_dice *dice, enum snd_dice_addr_type type, + u64 offset) +{ + switch (type) { + case SND_DICE_ADDR_TYPE_TX: + offset += dice->tx_offset; + break; + case SND_DICE_ADDR_TYPE_RX: + offset += dice->rx_offset; + break; + case SND_DICE_ADDR_TYPE_SYNC: + offset += dice->sync_offset; + break; + case SND_DICE_ADDR_TYPE_RSRV: + offset += dice->rsrv_offset; + break; + case SND_DICE_ADDR_TYPE_GLOBAL: + default: + offset += dice->global_offset; + break; + } + offset += DICE_PRIVATE_SPACE; + return offset; +} + +int snd_dice_transaction_write(struct snd_dice *dice, + enum snd_dice_addr_type type, + unsigned int offset, void *buf, unsigned int len) +{ + return snd_fw_transaction(dice->unit, + (len == 4) ? TCODE_WRITE_QUADLET_REQUEST : + TCODE_WRITE_BLOCK_REQUEST, + get_subaddr(dice, type, offset), buf, len, 0); +} + +int snd_dice_transaction_read(struct snd_dice *dice, + enum snd_dice_addr_type type, unsigned int offset, + void *buf, unsigned int len) +{ + return snd_fw_transaction(dice->unit, + (len == 4) ? TCODE_READ_QUADLET_REQUEST : + TCODE_READ_BLOCK_REQUEST, + get_subaddr(dice, type, offset), buf, len, 0); +} + +static unsigned int get_clock_info(struct snd_dice *dice, __be32 *info) +{ + return snd_dice_transaction_read_global(dice, GLOBAL_CLOCK_SELECT, + info, 4); +} + +static int set_clock_info(struct snd_dice *dice, + unsigned int rate, unsigned int source) +{ + unsigned int retries = 3; + unsigned int i; + __be32 info; + u32 mask; + u32 clock; + int err; +retry: + err = get_clock_info(dice, &info); + if (err < 0) + goto end; + + clock = be32_to_cpu(info); + if (source != UINT_MAX) { + mask = CLOCK_SOURCE_MASK; + clock &= ~mask; + clock |= source; + } + if (rate != UINT_MAX) { + for (i = 0; i < ARRAY_SIZE(snd_dice_rates); i++) { + if (snd_dice_rates[i] == rate) + break; + } + if (i == ARRAY_SIZE(snd_dice_rates)) { + err = -EINVAL; + goto end; + } + + mask = CLOCK_RATE_MASK; + clock &= ~mask; + clock |= i << CLOCK_RATE_SHIFT; + } + info = cpu_to_be32(clock); + + if (completion_done(&dice->clock_accepted)) + reinit_completion(&dice->clock_accepted); + + err = snd_dice_transaction_write_global(dice, GLOBAL_CLOCK_SELECT, + &info, 4); + if (err < 0) + goto end; + + /* Timeout means it's invalid request, probably bus reset occurred. */ + if (wait_for_completion_timeout(&dice->clock_accepted, + msecs_to_jiffies(NOTIFICATION_TIMEOUT_MS)) == 0) { + if (retries-- == 0) { + err = -ETIMEDOUT; + goto end; + } + + err = snd_dice_transaction_reinit(dice); + if (err < 0) + goto end; + + msleep(500); /* arbitrary */ + goto retry; + } +end: + return err; +} + +int snd_dice_transaction_get_clock_source(struct snd_dice *dice, + unsigned int *source) +{ + __be32 info; + int err; + + err = get_clock_info(dice, &info); + if (err >= 0) + *source = be32_to_cpu(info) & CLOCK_SOURCE_MASK; + + return err; +} + +int snd_dice_transaction_get_rate(struct snd_dice *dice, unsigned int *rate) +{ + __be32 info; + unsigned int index; + int err; + + err = get_clock_info(dice, &info); + if (err < 0) + goto end; + + index = (be32_to_cpu(info) & CLOCK_RATE_MASK) >> CLOCK_RATE_SHIFT; + if (index >= SND_DICE_RATES_COUNT) { + err = -ENOSYS; + goto end; + } + + *rate = snd_dice_rates[index]; +end: + return err; +} +int snd_dice_transaction_set_rate(struct snd_dice *dice, unsigned int rate) +{ + return set_clock_info(dice, rate, UINT_MAX); +} + +int snd_dice_transaction_set_enable(struct snd_dice *dice) +{ + __be32 value; + int err = 0; + + if (dice->global_enabled) + goto end; + + value = cpu_to_be32(1); + err = snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, + get_subaddr(dice, SND_DICE_ADDR_TYPE_GLOBAL, + GLOBAL_ENABLE), + &value, 4, + FW_FIXED_GENERATION | dice->owner_generation); + if (err < 0) + goto end; + + dice->global_enabled = true; +end: + return err; +} + +void snd_dice_transaction_clear_enable(struct snd_dice *dice) +{ + __be32 value; + + value = 0; + snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST, + get_subaddr(dice, SND_DICE_ADDR_TYPE_GLOBAL, + GLOBAL_ENABLE), + &value, 4, FW_QUIET | + FW_FIXED_GENERATION | dice->owner_generation); + + dice->global_enabled = false; +} + +static void dice_notification(struct fw_card *card, struct fw_request *request, + int tcode, int destination, int source, + int generation, unsigned long long offset, + void *data, size_t length, void *callback_data) +{ + struct snd_dice *dice = callback_data; + u32 bits; + unsigned long flags; + + if (tcode != TCODE_WRITE_QUADLET_REQUEST) { + fw_send_response(card, request, RCODE_TYPE_ERROR); + return; + } + if ((offset & 3) != 0) { + fw_send_response(card, request, RCODE_ADDRESS_ERROR); + return; + } + + bits = be32_to_cpup(data); + + spin_lock_irqsave(&dice->lock, flags); + dice->notification_bits |= bits; + spin_unlock_irqrestore(&dice->lock, flags); + + fw_send_response(card, request, RCODE_COMPLETE); + + if (bits & NOTIFY_CLOCK_ACCEPTED) + complete(&dice->clock_accepted); + wake_up(&dice->hwdep_wait); +} + +static int register_notification_address(struct snd_dice *dice, bool retry) +{ + struct fw_device *device = fw_parent_device(dice->unit); + __be64 *buffer; + unsigned int retries; + int err; + + retries = (retry) ? 3 : 0; + + buffer = kmalloc(2 * 8, GFP_KERNEL); + if (!buffer) + return -ENOMEM; + + for (;;) { + buffer[0] = cpu_to_be64(OWNER_NO_OWNER); + buffer[1] = cpu_to_be64( + ((u64)device->card->node_id << OWNER_NODE_SHIFT) | + dice->notification_handler.offset); + + dice->owner_generation = device->generation; + smp_rmb(); /* node_id vs. generation */ + err = snd_fw_transaction(dice->unit, TCODE_LOCK_COMPARE_SWAP, + get_subaddr(dice, + SND_DICE_ADDR_TYPE_GLOBAL, + GLOBAL_OWNER), + buffer, 2 * 8, + FW_FIXED_GENERATION | + dice->owner_generation); + if (err == 0) { + /* success */ + if (buffer[0] == cpu_to_be64(OWNER_NO_OWNER)) + break; + /* The address seems to be already registered. */ + if (buffer[0] == buffer[1]) + break; + + dev_err(&dice->unit->device, + "device is already in use\n"); + err = -EBUSY; + } + if (err != -EAGAIN || retries-- > 0) + break; + + msleep(20); + } + + kfree(buffer); + + if (err < 0) + dice->owner_generation = -1; + + return err; +} + +static void unregister_notification_address(struct snd_dice *dice) +{ + struct fw_device *device = fw_parent_device(dice->unit); + __be64 *buffer; + + buffer = kmalloc(2 * 8, GFP_KERNEL); + if (buffer == NULL) + return; + + buffer[0] = cpu_to_be64( + ((u64)device->card->node_id << OWNER_NODE_SHIFT) | + dice->notification_handler.offset); + buffer[1] = cpu_to_be64(OWNER_NO_OWNER); + snd_fw_transaction(dice->unit, TCODE_LOCK_COMPARE_SWAP, + get_subaddr(dice, SND_DICE_ADDR_TYPE_GLOBAL, + GLOBAL_OWNER), + buffer, 2 * 8, FW_QUIET | + FW_FIXED_GENERATION | dice->owner_generation); + + kfree(buffer); + + dice->owner_generation = -1; +} + +void snd_dice_transaction_destroy(struct snd_dice *dice) +{ + struct fw_address_handler *handler = &dice->notification_handler; + + if (handler->callback_data == NULL) + return; + + unregister_notification_address(dice); + + fw_core_remove_address_handler(handler); + handler->callback_data = NULL; +} + +int snd_dice_transaction_reinit(struct snd_dice *dice) +{ + struct fw_address_handler *handler = &dice->notification_handler; + + if (handler->callback_data == NULL) + return -EINVAL; + + return register_notification_address(dice, false); +} + +int snd_dice_transaction_init(struct snd_dice *dice) +{ + struct fw_address_handler *handler = &dice->notification_handler; + __be32 *pointers; + int err; + + /* Use the same way which dice_interface_check() does. */ + pointers = kmalloc(sizeof(__be32) * 10, GFP_KERNEL); + if (pointers == NULL) + return -ENOMEM; + + /* Get offsets for sub-addresses */ + err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST, + DICE_PRIVATE_SPACE, + pointers, sizeof(__be32) * 10, 0); + if (err < 0) + goto end; + + /* Allocation callback in address space over host controller */ + handler->length = 4; + handler->address_callback = dice_notification; + handler->callback_data = dice; + err = fw_core_add_address_handler(handler, &fw_high_memory_region); + if (err < 0) { + handler->callback_data = NULL; + goto end; + } + + /* Register the address space */ + err = register_notification_address(dice, true); + if (err < 0) { + fw_core_remove_address_handler(handler); + handler->callback_data = NULL; + goto end; + } + + dice->global_offset = be32_to_cpu(pointers[0]) * 4; + dice->tx_offset = be32_to_cpu(pointers[2]) * 4; + dice->rx_offset = be32_to_cpu(pointers[4]) * 4; + dice->sync_offset = be32_to_cpu(pointers[6]) * 4; + dice->rsrv_offset = be32_to_cpu(pointers[8]) * 4; + + /* Set up later. */ + if (be32_to_cpu(pointers[1]) * 4 >= GLOBAL_CLOCK_CAPABILITIES + 4) + dice->clock_caps = 1; +end: + kfree(pointers); + return err; +} diff --git a/kernel/sound/firewire/dice/dice.c b/kernel/sound/firewire/dice/dice.c new file mode 100644 index 000000000..70a111d7f --- /dev/null +++ b/kernel/sound/firewire/dice/dice.c @@ -0,0 +1,367 @@ +/* + * TC Applied Technologies Digital Interface Communications Engine driver + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "dice.h" + +MODULE_DESCRIPTION("DICE driver"); +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_LICENSE("GPL v2"); + +#define OUI_WEISS 0x001c6a + +#define DICE_CATEGORY_ID 0x04 +#define WEISS_CATEGORY_ID 0x00 + +static int dice_interface_check(struct fw_unit *unit) +{ + static const int min_values[10] = { + 10, 0x64 / 4, + 10, 0x18 / 4, + 10, 0x18 / 4, + 0, 0, + 0, 0, + }; + struct fw_device *device = fw_parent_device(unit); + struct fw_csr_iterator it; + int key, val, vendor = -1, model = -1, err; + unsigned int category, i; + __be32 *pointers, value; + __be32 version; + + pointers = kmalloc_array(ARRAY_SIZE(min_values), sizeof(__be32), + GFP_KERNEL); + if (pointers == NULL) + return -ENOMEM; + + /* + * Check that GUID and unit directory are constructed according to DICE + * rules, i.e., that the specifier ID is the GUID's OUI, and that the + * GUID chip ID consists of the 8-bit category ID, the 10-bit product + * ID, and a 22-bit serial number. + */ + fw_csr_iterator_init(&it, unit->directory); + while (fw_csr_iterator_next(&it, &key, &val)) { + switch (key) { + case CSR_SPECIFIER_ID: + vendor = val; + break; + case CSR_MODEL: + model = val; + break; + } + } + if (vendor == OUI_WEISS) + category = WEISS_CATEGORY_ID; + else + category = DICE_CATEGORY_ID; + if (device->config_rom[3] != ((vendor << 8) | category) || + device->config_rom[4] >> 22 != model) { + err = -ENODEV; + goto end; + } + + /* + * Check that the sub address spaces exist and are located inside the + * private address space. The minimum values are chosen so that all + * minimally required registers are included. + */ + err = snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST, + DICE_PRIVATE_SPACE, pointers, + sizeof(__be32) * ARRAY_SIZE(min_values), 0); + if (err < 0) { + err = -ENODEV; + goto end; + } + for (i = 0; i < ARRAY_SIZE(min_values); ++i) { + value = be32_to_cpu(pointers[i]); + if (value < min_values[i] || value >= 0x40000) { + err = -ENODEV; + goto end; + } + } + + /* + * Check that the implemented DICE driver specification major version + * number matches. + */ + err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST, + DICE_PRIVATE_SPACE + + be32_to_cpu(pointers[0]) * 4 + GLOBAL_VERSION, + &version, 4, 0); + if (err < 0) { + err = -ENODEV; + goto end; + } + if ((version & cpu_to_be32(0xff000000)) != cpu_to_be32(0x01000000)) { + dev_err(&unit->device, + "unknown DICE version: 0x%08x\n", be32_to_cpu(version)); + err = -ENODEV; + goto end; + } +end: + return err; +} + +static int highest_supported_mode_rate(struct snd_dice *dice, + unsigned int mode, unsigned int *rate) +{ + unsigned int i, m; + + for (i = ARRAY_SIZE(snd_dice_rates); i > 0; i--) { + *rate = snd_dice_rates[i - 1]; + if (snd_dice_stream_get_rate_mode(dice, *rate, &m) < 0) + continue; + if (mode == m) + break; + } + if (i == 0) + return -EINVAL; + + return 0; +} + +static int dice_read_mode_params(struct snd_dice *dice, unsigned int mode) +{ + __be32 values[2]; + unsigned int rate; + int err; + + if (highest_supported_mode_rate(dice, mode, &rate) < 0) { + dice->tx_channels[mode] = 0; + dice->tx_midi_ports[mode] = 0; + dice->rx_channels[mode] = 0; + dice->rx_midi_ports[mode] = 0; + return 0; + } + + err = snd_dice_transaction_set_rate(dice, rate); + if (err < 0) + return err; + + err = snd_dice_transaction_read_tx(dice, TX_NUMBER_AUDIO, + values, sizeof(values)); + if (err < 0) + return err; + + dice->tx_channels[mode] = be32_to_cpu(values[0]); + dice->tx_midi_ports[mode] = be32_to_cpu(values[1]); + + err = snd_dice_transaction_read_rx(dice, RX_NUMBER_AUDIO, + values, sizeof(values)); + if (err < 0) + return err; + + dice->rx_channels[mode] = be32_to_cpu(values[0]); + dice->rx_midi_ports[mode] = be32_to_cpu(values[1]); + + return 0; +} + +static int dice_read_params(struct snd_dice *dice) +{ + __be32 value; + int mode, err; + + /* some very old firmwares don't tell about their clock support */ + if (dice->clock_caps > 0) { + err = snd_dice_transaction_read_global(dice, + GLOBAL_CLOCK_CAPABILITIES, + &value, 4); + if (err < 0) + return err; + dice->clock_caps = be32_to_cpu(value); + } else { + /* this should be supported by any device */ + dice->clock_caps = CLOCK_CAP_RATE_44100 | + CLOCK_CAP_RATE_48000 | + CLOCK_CAP_SOURCE_ARX1 | + CLOCK_CAP_SOURCE_INTERNAL; + } + + for (mode = 2; mode >= 0; --mode) { + err = dice_read_mode_params(dice, mode); + if (err < 0) + return err; + } + + return 0; +} + +static void dice_card_strings(struct snd_dice *dice) +{ + struct snd_card *card = dice->card; + struct fw_device *dev = fw_parent_device(dice->unit); + char vendor[32], model[32]; + unsigned int i; + int err; + + strcpy(card->driver, "DICE"); + + strcpy(card->shortname, "DICE"); + BUILD_BUG_ON(NICK_NAME_SIZE < sizeof(card->shortname)); + err = snd_dice_transaction_read_global(dice, GLOBAL_NICK_NAME, + card->shortname, + sizeof(card->shortname)); + if (err >= 0) { + /* DICE strings are returned in "always-wrong" endianness */ + BUILD_BUG_ON(sizeof(card->shortname) % 4 != 0); + for (i = 0; i < sizeof(card->shortname); i += 4) + swab32s((u32 *)&card->shortname[i]); + card->shortname[sizeof(card->shortname) - 1] = '\0'; + } + + strcpy(vendor, "?"); + fw_csr_string(dev->config_rom + 5, CSR_VENDOR, vendor, sizeof(vendor)); + strcpy(model, "?"); + fw_csr_string(dice->unit->directory, CSR_MODEL, model, sizeof(model)); + snprintf(card->longname, sizeof(card->longname), + "%s %s (serial %u) at %s, S%d", + vendor, model, dev->config_rom[4] & 0x3fffff, + dev_name(&dice->unit->device), 100 << dev->max_speed); + + strcpy(card->mixername, "DICE"); +} + +/* + * This module releases the FireWire unit data after all ALSA character devices + * are released by applications. This is for releasing stream data or finishing + * transactions safely. Thus at returning from .remove(), this module still keep + * references for the unit. + */ +static void dice_card_free(struct snd_card *card) +{ + struct snd_dice *dice = card->private_data; + + snd_dice_stream_destroy_duplex(dice); + snd_dice_transaction_destroy(dice); + fw_unit_put(dice->unit); + + mutex_destroy(&dice->mutex); +} + +static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id) +{ + struct snd_card *card; + struct snd_dice *dice; + int err; + + err = dice_interface_check(unit); + if (err < 0) + goto end; + + err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, + sizeof(*dice), &card); + if (err < 0) + goto end; + + dice = card->private_data; + dice->card = card; + dice->unit = fw_unit_get(unit); + card->private_free = dice_card_free; + + spin_lock_init(&dice->lock); + mutex_init(&dice->mutex); + init_completion(&dice->clock_accepted); + init_waitqueue_head(&dice->hwdep_wait); + + err = snd_dice_transaction_init(dice); + if (err < 0) + goto error; + + err = dice_read_params(dice); + if (err < 0) + goto error; + + dice_card_strings(dice); + + err = snd_dice_create_pcm(dice); + if (err < 0) + goto error; + + err = snd_dice_create_hwdep(dice); + if (err < 0) + goto error; + + snd_dice_create_proc(dice); + + err = snd_dice_create_midi(dice); + if (err < 0) + goto error; + + err = snd_dice_stream_init_duplex(dice); + if (err < 0) + goto error; + + err = snd_card_register(card); + if (err < 0) { + snd_dice_stream_destroy_duplex(dice); + goto error; + } + + dev_set_drvdata(&unit->device, dice); +end: + return err; +error: + snd_card_free(card); + return err; +} + +static void dice_remove(struct fw_unit *unit) +{ + struct snd_dice *dice = dev_get_drvdata(&unit->device); + + /* No need to wait for releasing card object in this context. */ + snd_card_free_when_closed(dice->card); +} + +static void dice_bus_reset(struct fw_unit *unit) +{ + struct snd_dice *dice = dev_get_drvdata(&unit->device); + + /* The handler address register becomes initialized. */ + snd_dice_transaction_reinit(dice); + + mutex_lock(&dice->mutex); + snd_dice_stream_update_duplex(dice); + mutex_unlock(&dice->mutex); +} + +#define DICE_INTERFACE 0x000001 + +static const struct ieee1394_device_id dice_id_table[] = { + { + .match_flags = IEEE1394_MATCH_VERSION, + .version = DICE_INTERFACE, + }, + { } +}; +MODULE_DEVICE_TABLE(ieee1394, dice_id_table); + +static struct fw_driver dice_driver = { + .driver = { + .owner = THIS_MODULE, + .name = KBUILD_MODNAME, + .bus = &fw_bus_type, + }, + .probe = dice_probe, + .update = dice_bus_reset, + .remove = dice_remove, + .id_table = dice_id_table, +}; + +static int __init alsa_dice_init(void) +{ + return driver_register(&dice_driver.driver); +} + +static void __exit alsa_dice_exit(void) +{ + driver_unregister(&dice_driver.driver); +} + +module_init(alsa_dice_init); +module_exit(alsa_dice_exit); diff --git a/kernel/sound/firewire/dice/dice.h b/kernel/sound/firewire/dice/dice.h new file mode 100644 index 000000000..ecf5dc862 --- /dev/null +++ b/kernel/sound/firewire/dice/dice.h @@ -0,0 +1,189 @@ +/* + * dice.h - a part of driver for Dice based devices + * + * Copyright (c) Clemens Ladisch + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#ifndef SOUND_DICE_H_INCLUDED +#define SOUND_DICE_H_INCLUDED + +#include <linux/compat.h> +#include <linux/completion.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/firewire-constants.h> +#include <linux/jiffies.h> +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/mutex.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include <linux/wait.h> + +#include <sound/control.h> +#include <sound/core.h> +#include <sound/firewire.h> +#include <sound/hwdep.h> +#include <sound/info.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/rawmidi.h> + +#include "../amdtp.h" +#include "../iso-resources.h" +#include "../lib.h" +#include "dice-interface.h" + +struct snd_dice { + struct snd_card *card; + struct fw_unit *unit; + spinlock_t lock; + struct mutex mutex; + + /* Offsets for sub-addresses */ + unsigned int global_offset; + unsigned int rx_offset; + unsigned int tx_offset; + unsigned int sync_offset; + unsigned int rsrv_offset; + + unsigned int clock_caps; + unsigned int tx_channels[3]; + unsigned int rx_channels[3]; + unsigned int tx_midi_ports[3]; + unsigned int rx_midi_ports[3]; + + struct fw_address_handler notification_handler; + int owner_generation; + u32 notification_bits; + + /* For uapi */ + int dev_lock_count; /* > 0 driver, < 0 userspace */ + bool dev_lock_changed; + wait_queue_head_t hwdep_wait; + + /* For streaming */ + struct fw_iso_resources tx_resources; + struct fw_iso_resources rx_resources; + struct amdtp_stream tx_stream; + struct amdtp_stream rx_stream; + bool global_enabled; + struct completion clock_accepted; + unsigned int substreams_counter; +}; + +enum snd_dice_addr_type { + SND_DICE_ADDR_TYPE_PRIVATE, + SND_DICE_ADDR_TYPE_GLOBAL, + SND_DICE_ADDR_TYPE_TX, + SND_DICE_ADDR_TYPE_RX, + SND_DICE_ADDR_TYPE_SYNC, + SND_DICE_ADDR_TYPE_RSRV, +}; + +int snd_dice_transaction_write(struct snd_dice *dice, + enum snd_dice_addr_type type, + unsigned int offset, + void *buf, unsigned int len); +int snd_dice_transaction_read(struct snd_dice *dice, + enum snd_dice_addr_type type, unsigned int offset, + void *buf, unsigned int len); + +static inline int snd_dice_transaction_write_global(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_write(dice, + SND_DICE_ADDR_TYPE_GLOBAL, offset, + buf, len); +} +static inline int snd_dice_transaction_read_global(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_read(dice, + SND_DICE_ADDR_TYPE_GLOBAL, offset, + buf, len); +} +static inline int snd_dice_transaction_write_tx(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_write(dice, SND_DICE_ADDR_TYPE_TX, offset, + buf, len); +} +static inline int snd_dice_transaction_read_tx(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_read(dice, SND_DICE_ADDR_TYPE_TX, offset, + buf, len); +} +static inline int snd_dice_transaction_write_rx(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_write(dice, SND_DICE_ADDR_TYPE_RX, offset, + buf, len); +} +static inline int snd_dice_transaction_read_rx(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_read(dice, SND_DICE_ADDR_TYPE_RX, offset, + buf, len); +} +static inline int snd_dice_transaction_write_sync(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_write(dice, SND_DICE_ADDR_TYPE_SYNC, offset, + buf, len); +} +static inline int snd_dice_transaction_read_sync(struct snd_dice *dice, + unsigned int offset, + void *buf, unsigned int len) +{ + return snd_dice_transaction_read(dice, SND_DICE_ADDR_TYPE_SYNC, offset, + buf, len); +} + +int snd_dice_transaction_get_clock_source(struct snd_dice *dice, + unsigned int *source); +int snd_dice_transaction_set_rate(struct snd_dice *dice, unsigned int rate); +int snd_dice_transaction_get_rate(struct snd_dice *dice, unsigned int *rate); +int snd_dice_transaction_set_enable(struct snd_dice *dice); +void snd_dice_transaction_clear_enable(struct snd_dice *dice); +int snd_dice_transaction_init(struct snd_dice *dice); +int snd_dice_transaction_reinit(struct snd_dice *dice); +void snd_dice_transaction_destroy(struct snd_dice *dice); + +#define SND_DICE_RATES_COUNT 7 +extern const unsigned int snd_dice_rates[SND_DICE_RATES_COUNT]; + +int snd_dice_stream_get_rate_mode(struct snd_dice *dice, + unsigned int rate, unsigned int *mode); + +int snd_dice_stream_start_duplex(struct snd_dice *dice, unsigned int rate); +void snd_dice_stream_stop_duplex(struct snd_dice *dice); +int snd_dice_stream_init_duplex(struct snd_dice *dice); +void snd_dice_stream_destroy_duplex(struct snd_dice *dice); +void snd_dice_stream_update_duplex(struct snd_dice *dice); + +int snd_dice_stream_lock_try(struct snd_dice *dice); +void snd_dice_stream_lock_release(struct snd_dice *dice); + +int snd_dice_create_pcm(struct snd_dice *dice); + +int snd_dice_create_hwdep(struct snd_dice *dice); + +void snd_dice_create_proc(struct snd_dice *dice); + +int snd_dice_create_midi(struct snd_dice *dice); + +#endif diff --git a/kernel/sound/firewire/fcp.c b/kernel/sound/firewire/fcp.c new file mode 100644 index 000000000..0619597e3 --- /dev/null +++ b/kernel/sound/firewire/fcp.c @@ -0,0 +1,397 @@ +/* + * Function Control Protocol (IEC 61883-1) helper functions + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/firewire-constants.h> +#include <linux/list.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/sched.h> +#include <linux/spinlock.h> +#include <linux/wait.h> +#include <linux/delay.h> +#include "fcp.h" +#include "lib.h" +#include "amdtp.h" + +#define CTS_AVC 0x00 + +#define ERROR_RETRIES 3 +#define ERROR_DELAY_MS 5 +#define FCP_TIMEOUT_MS 125 + +int avc_general_set_sig_fmt(struct fw_unit *unit, unsigned int rate, + enum avc_general_plug_dir dir, + unsigned short pid) +{ + unsigned int sfc; + u8 *buf; + bool flag; + int err; + + flag = false; + for (sfc = 0; sfc < CIP_SFC_COUNT; sfc++) { + if (amdtp_rate_table[sfc] == rate) { + flag = true; + break; + } + } + if (!flag) + return -EINVAL; + + buf = kzalloc(8, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + buf[0] = 0x00; /* AV/C CONTROL */ + buf[1] = 0xff; /* UNIT */ + if (dir == AVC_GENERAL_PLUG_DIR_IN) + buf[2] = 0x19; /* INPUT PLUG SIGNAL FORMAT */ + else + buf[2] = 0x18; /* OUTPUT PLUG SIGNAL FORMAT */ + buf[3] = 0xff & pid; /* plug id */ + buf[4] = 0x90; /* EOH_1, Form_1, FMT. AM824 */ + buf[5] = 0x07 & sfc; /* FDF-hi. AM824, frequency */ + buf[6] = 0xff; /* FDF-mid. AM824, SYT hi (not used)*/ + buf[7] = 0xff; /* FDF-low. AM824, SYT lo (not used) */ + + /* do transaction and check buf[1-5] are the same against command */ + err = fcp_avc_transaction(unit, buf, 8, buf, 8, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5)); + if (err >= 0 && err < 8) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + if (err < 0) + goto end; + + err = 0; +end: + kfree(buf); + return err; +} +EXPORT_SYMBOL(avc_general_set_sig_fmt); + +int avc_general_get_sig_fmt(struct fw_unit *unit, unsigned int *rate, + enum avc_general_plug_dir dir, + unsigned short pid) +{ + unsigned int sfc; + u8 *buf; + int err; + + buf = kzalloc(8, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + buf[0] = 0x01; /* AV/C STATUS */ + buf[1] = 0xff; /* Unit */ + if (dir == AVC_GENERAL_PLUG_DIR_IN) + buf[2] = 0x19; /* INPUT PLUG SIGNAL FORMAT */ + else + buf[2] = 0x18; /* OUTPUT PLUG SIGNAL FORMAT */ + buf[3] = 0xff & pid; /* plug id */ + buf[4] = 0x90; /* EOH_1, Form_1, FMT. AM824 */ + buf[5] = 0xff; /* FDF-hi. AM824, frequency */ + buf[6] = 0xff; /* FDF-mid. AM824, SYT hi (not used) */ + buf[7] = 0xff; /* FDF-low. AM824, SYT lo (not used) */ + + /* do transaction and check buf[1-4] are the same against command */ + err = fcp_avc_transaction(unit, buf, 8, buf, 8, + BIT(1) | BIT(2) | BIT(3) | BIT(4)); + if (err >= 0 && err < 8) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else if (buf[0] == 0x0b) /* IN TRANSITION */ + err = -EAGAIN; + if (err < 0) + goto end; + + /* check sfc field and pick up rate */ + sfc = 0x07 & buf[5]; + if (sfc >= CIP_SFC_COUNT) { + err = -EAGAIN; /* also in transition */ + goto end; + } + + *rate = amdtp_rate_table[sfc]; + err = 0; +end: + kfree(buf); + return err; +} +EXPORT_SYMBOL(avc_general_get_sig_fmt); + +int avc_general_get_plug_info(struct fw_unit *unit, unsigned int subunit_type, + unsigned int subunit_id, unsigned int subfunction, + u8 info[AVC_PLUG_INFO_BUF_BYTES]) +{ + u8 *buf; + int err; + + /* extended subunit in spec.4.2 is not supported */ + if ((subunit_type == 0x1E) || (subunit_id == 5)) + return -EINVAL; + + buf = kzalloc(8, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + buf[0] = 0x01; /* AV/C STATUS */ + /* UNIT or Subunit, Functionblock */ + buf[1] = ((subunit_type & 0x1f) << 3) | (subunit_id & 0x7); + buf[2] = 0x02; /* PLUG INFO */ + buf[3] = 0xff & subfunction; + + err = fcp_avc_transaction(unit, buf, 8, buf, 8, BIT(1) | BIT(2)); + if (err >= 0 && err < 8) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else if (buf[0] == 0x0b) /* IN TRANSITION */ + err = -EAGAIN; + if (err < 0) + goto end; + + info[0] = buf[4]; + info[1] = buf[5]; + info[2] = buf[6]; + info[3] = buf[7]; + + err = 0; +end: + kfree(buf); + return err; +} +EXPORT_SYMBOL(avc_general_get_plug_info); + +static DEFINE_SPINLOCK(transactions_lock); +static LIST_HEAD(transactions); + +enum fcp_state { + STATE_PENDING, + STATE_BUS_RESET, + STATE_COMPLETE, + STATE_DEFERRED, +}; + +struct fcp_transaction { + struct list_head list; + struct fw_unit *unit; + void *response_buffer; + unsigned int response_size; + unsigned int response_match_bytes; + enum fcp_state state; + wait_queue_head_t wait; + bool deferrable; +}; + +/** + * fcp_avc_transaction - send an AV/C command and wait for its response + * @unit: a unit on the target device + * @command: a buffer containing the command frame; must be DMA-able + * @command_size: the size of @command + * @response: a buffer for the response frame + * @response_size: the maximum size of @response + * @response_match_bytes: a bitmap specifying the bytes used to detect the + * correct response frame + * + * This function sends a FCP command frame to the target and waits for the + * corresponding response frame to be returned. + * + * Because it is possible for multiple FCP transactions to be active at the + * same time, the correct response frame is detected by the value of certain + * bytes. These bytes must be set in @response before calling this function, + * and the corresponding bits must be set in @response_match_bytes. + * + * @command and @response can point to the same buffer. + * + * Returns the actual size of the response frame, or a negative error code. + */ +int fcp_avc_transaction(struct fw_unit *unit, + const void *command, unsigned int command_size, + void *response, unsigned int response_size, + unsigned int response_match_bytes) +{ + struct fcp_transaction t; + int tcode, ret, tries = 0; + + t.unit = unit; + t.response_buffer = response; + t.response_size = response_size; + t.response_match_bytes = response_match_bytes; + t.state = STATE_PENDING; + init_waitqueue_head(&t.wait); + + if (*(const u8 *)command == 0x00 || *(const u8 *)command == 0x03) + t.deferrable = true; + + spin_lock_irq(&transactions_lock); + list_add_tail(&t.list, &transactions); + spin_unlock_irq(&transactions_lock); + + for (;;) { + tcode = command_size == 4 ? TCODE_WRITE_QUADLET_REQUEST + : TCODE_WRITE_BLOCK_REQUEST; + ret = snd_fw_transaction(t.unit, tcode, + CSR_REGISTER_BASE + CSR_FCP_COMMAND, + (void *)command, command_size, 0); + if (ret < 0) + break; +deferred: + wait_event_timeout(t.wait, t.state != STATE_PENDING, + msecs_to_jiffies(FCP_TIMEOUT_MS)); + + if (t.state == STATE_DEFERRED) { + /* + * 'AV/C General Specification' define no time limit + * on command completion once an INTERIM response has + * been sent. but we promise to finish this function + * for a caller. Here we use FCP_TIMEOUT_MS for next + * interval. This is not in the specification. + */ + t.state = STATE_PENDING; + goto deferred; + } else if (t.state == STATE_COMPLETE) { + ret = t.response_size; + break; + } else if (t.state == STATE_BUS_RESET) { + msleep(ERROR_DELAY_MS); + } else if (++tries >= ERROR_RETRIES) { + dev_err(&t.unit->device, "FCP command timed out\n"); + ret = -EIO; + break; + } + } + + spin_lock_irq(&transactions_lock); + list_del(&t.list); + spin_unlock_irq(&transactions_lock); + + return ret; +} +EXPORT_SYMBOL(fcp_avc_transaction); + +/** + * fcp_bus_reset - inform the target handler about a bus reset + * @unit: the unit that might be used by fcp_avc_transaction() + * + * This function must be called from the driver's .update handler to inform + * the FCP transaction handler that a bus reset has happened. Any pending FCP + * transactions are retried. + */ +void fcp_bus_reset(struct fw_unit *unit) +{ + struct fcp_transaction *t; + + spin_lock_irq(&transactions_lock); + list_for_each_entry(t, &transactions, list) { + if (t->unit == unit && + (t->state == STATE_PENDING || + t->state == STATE_DEFERRED)) { + t->state = STATE_BUS_RESET; + wake_up(&t->wait); + } + } + spin_unlock_irq(&transactions_lock); +} +EXPORT_SYMBOL(fcp_bus_reset); + +/* checks whether the response matches the masked bytes in response_buffer */ +static bool is_matching_response(struct fcp_transaction *transaction, + const void *response, size_t length) +{ + const u8 *p1, *p2; + unsigned int mask, i; + + p1 = response; + p2 = transaction->response_buffer; + mask = transaction->response_match_bytes; + + for (i = 0; ; ++i) { + if ((mask & 1) && p1[i] != p2[i]) + return false; + mask >>= 1; + if (!mask) + return true; + if (--length == 0) + return false; + } +} + +static void fcp_response(struct fw_card *card, struct fw_request *request, + int tcode, int destination, int source, + int generation, unsigned long long offset, + void *data, size_t length, void *callback_data) +{ + struct fcp_transaction *t; + unsigned long flags; + + if (length < 1 || (*(const u8 *)data & 0xf0) != CTS_AVC) + return; + + spin_lock_irqsave(&transactions_lock, flags); + list_for_each_entry(t, &transactions, list) { + struct fw_device *device = fw_parent_device(t->unit); + if (device->card != card || + device->generation != generation) + continue; + smp_rmb(); /* node_id vs. generation */ + if (device->node_id != source) + continue; + + if (t->state == STATE_PENDING && + is_matching_response(t, data, length)) { + if (t->deferrable && *(const u8 *)data == 0x0f) { + t->state = STATE_DEFERRED; + } else { + t->state = STATE_COMPLETE; + t->response_size = min_t(unsigned int, length, + t->response_size); + memcpy(t->response_buffer, data, + t->response_size); + } + wake_up(&t->wait); + } + } + spin_unlock_irqrestore(&transactions_lock, flags); +} + +static struct fw_address_handler response_register_handler = { + .length = 0x200, + .address_callback = fcp_response, +}; + +static int __init fcp_module_init(void) +{ + static const struct fw_address_region response_register_region = { + .start = CSR_REGISTER_BASE + CSR_FCP_RESPONSE, + .end = CSR_REGISTER_BASE + CSR_FCP_END, + }; + + fw_core_add_address_handler(&response_register_handler, + &response_register_region); + + return 0; +} + +static void __exit fcp_module_exit(void) +{ + WARN_ON(!list_empty(&transactions)); + fw_core_remove_address_handler(&response_register_handler); +} + +module_init(fcp_module_init); +module_exit(fcp_module_exit); diff --git a/kernel/sound/firewire/fcp.h b/kernel/sound/firewire/fcp.h new file mode 100644 index 000000000..63ae4f7ce --- /dev/null +++ b/kernel/sound/firewire/fcp.h @@ -0,0 +1,33 @@ +#ifndef SOUND_FIREWIRE_FCP_H_INCLUDED +#define SOUND_FIREWIRE_FCP_H_INCLUDED + +#define AVC_PLUG_INFO_BUF_BYTES 4 + +struct fw_unit; + +/* + * AV/C Digital Interface Command Set General Specification 4.2 + * (Sep 2004, 1394TA) + */ +enum avc_general_plug_dir { + AVC_GENERAL_PLUG_DIR_IN = 0, + AVC_GENERAL_PLUG_DIR_OUT = 1, + AVC_GENERAL_PLUG_DIR_COUNT +}; +int avc_general_set_sig_fmt(struct fw_unit *unit, unsigned int rate, + enum avc_general_plug_dir dir, + unsigned short plug); +int avc_general_get_sig_fmt(struct fw_unit *unit, unsigned int *rate, + enum avc_general_plug_dir dir, + unsigned short plug); +int avc_general_get_plug_info(struct fw_unit *unit, unsigned int subunit_type, + unsigned int subunit_id, unsigned int subfunction, + u8 info[AVC_PLUG_INFO_BUF_BYTES]); + +int fcp_avc_transaction(struct fw_unit *unit, + const void *command, unsigned int command_size, + void *response, unsigned int response_size, + unsigned int response_match_bytes); +void fcp_bus_reset(struct fw_unit *unit); + +#endif diff --git a/kernel/sound/firewire/fireworks/Makefile b/kernel/sound/firewire/fireworks/Makefile new file mode 100644 index 000000000..0c7440826 --- /dev/null +++ b/kernel/sound/firewire/fireworks/Makefile @@ -0,0 +1,4 @@ +snd-fireworks-objs := fireworks_transaction.o fireworks_command.o \ + fireworks_stream.o fireworks_proc.o fireworks_midi.o \ + fireworks_pcm.o fireworks_hwdep.o fireworks.o +obj-m += snd-fireworks.o diff --git a/kernel/sound/firewire/fireworks/fireworks.c b/kernel/sound/firewire/fireworks/fireworks.c new file mode 100644 index 000000000..2682e7e3e --- /dev/null +++ b/kernel/sound/firewire/fireworks/fireworks.c @@ -0,0 +1,360 @@ +/* + * fireworks.c - a part of driver for Fireworks based devices + * + * Copyright (c) 2009-2010 Clemens Ladisch + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +/* + * Fireworks is a board module which Echo Audio produced. This module consists + * of three chipsets: + * - Communication chipset for IEEE1394 PHY/Link and IEC 61883-1/6 + * - DSP or/and FPGA for signal processing + * - Flash Memory to store firmwares + */ + +#include "fireworks.h" + +MODULE_DESCRIPTION("Echo Fireworks driver"); +MODULE_AUTHOR("Takashi Sakamoto <o-takashi@sakamocchi.jp>"); +MODULE_LICENSE("GPL v2"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; +unsigned int snd_efw_resp_buf_size = 1024; +bool snd_efw_resp_buf_debug = false; + +module_param_array(index, int, NULL, 0444); +MODULE_PARM_DESC(index, "card index"); +module_param_array(id, charp, NULL, 0444); +MODULE_PARM_DESC(id, "ID string"); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(enable, "enable Fireworks sound card"); +module_param_named(resp_buf_size, snd_efw_resp_buf_size, uint, 0444); +MODULE_PARM_DESC(resp_buf_size, + "response buffer size (max 4096, default 1024)"); +module_param_named(resp_buf_debug, snd_efw_resp_buf_debug, bool, 0444); +MODULE_PARM_DESC(resp_buf_debug, "store all responses to buffer"); + +static DEFINE_MUTEX(devices_mutex); +static DECLARE_BITMAP(devices_used, SNDRV_CARDS); + +#define VENDOR_LOUD 0x000ff2 +#define MODEL_MACKIE_400F 0x00400f +#define MODEL_MACKIE_1200F 0x01200f + +#define VENDOR_ECHO 0x001486 +#define MODEL_ECHO_AUDIOFIRE_12 0x00af12 +#define MODEL_ECHO_AUDIOFIRE_12HD 0x0af12d +#define MODEL_ECHO_AUDIOFIRE_12_APPLE 0x0af12a +/* This is applied for AudioFire8 (until 2009 July) */ +#define MODEL_ECHO_AUDIOFIRE_8 0x000af8 +#define MODEL_ECHO_AUDIOFIRE_2 0x000af2 +#define MODEL_ECHO_AUDIOFIRE_4 0x000af4 +/* AudioFire9 is applied for AudioFire8(since 2009 July) and AudioFirePre8 */ +#define MODEL_ECHO_AUDIOFIRE_9 0x000af9 +/* unknown as product */ +#define MODEL_ECHO_FIREWORKS_8 0x0000f8 +#define MODEL_ECHO_FIREWORKS_HDMI 0x00afd1 + +#define VENDOR_GIBSON 0x00075b +/* for Robot Interface Pack of Dark Fire, Dusk Tiger, Les Paul Standard 2010 */ +#define MODEL_GIBSON_RIP 0x00afb2 +/* unknown as product */ +#define MODEL_GIBSON_GOLDTOP 0x00afb9 + +/* part of hardware capability flags */ +#define FLAG_RESP_ADDR_CHANGABLE 0 + +static int +get_hardware_info(struct snd_efw *efw) +{ + struct fw_device *fw_dev = fw_parent_device(efw->unit); + struct snd_efw_hwinfo *hwinfo; + char version[12] = {0}; + int err; + + hwinfo = kzalloc(sizeof(struct snd_efw_hwinfo), GFP_KERNEL); + if (hwinfo == NULL) + return -ENOMEM; + + err = snd_efw_command_get_hwinfo(efw, hwinfo); + if (err < 0) + goto end; + + /* firmware version for communication chipset */ + snprintf(version, sizeof(version), "%u.%u", + (hwinfo->arm_version >> 24) & 0xff, + (hwinfo->arm_version >> 16) & 0xff); + efw->firmware_version = hwinfo->arm_version; + + strcpy(efw->card->driver, "Fireworks"); + strcpy(efw->card->shortname, hwinfo->model_name); + strcpy(efw->card->mixername, hwinfo->model_name); + snprintf(efw->card->longname, sizeof(efw->card->longname), + "%s %s v%s, GUID %08x%08x at %s, S%d", + hwinfo->vendor_name, hwinfo->model_name, version, + hwinfo->guid_hi, hwinfo->guid_lo, + dev_name(&efw->unit->device), 100 << fw_dev->max_speed); + + if (hwinfo->flags & BIT(FLAG_RESP_ADDR_CHANGABLE)) + efw->resp_addr_changable = true; + + efw->supported_sampling_rate = 0; + if ((hwinfo->min_sample_rate <= 22050) + && (22050 <= hwinfo->max_sample_rate)) + efw->supported_sampling_rate |= SNDRV_PCM_RATE_22050; + if ((hwinfo->min_sample_rate <= 32000) + && (32000 <= hwinfo->max_sample_rate)) + efw->supported_sampling_rate |= SNDRV_PCM_RATE_32000; + if ((hwinfo->min_sample_rate <= 44100) + && (44100 <= hwinfo->max_sample_rate)) + efw->supported_sampling_rate |= SNDRV_PCM_RATE_44100; + if ((hwinfo->min_sample_rate <= 48000) + && (48000 <= hwinfo->max_sample_rate)) + efw->supported_sampling_rate |= SNDRV_PCM_RATE_48000; + if ((hwinfo->min_sample_rate <= 88200) + && (88200 <= hwinfo->max_sample_rate)) + efw->supported_sampling_rate |= SNDRV_PCM_RATE_88200; + if ((hwinfo->min_sample_rate <= 96000) + && (96000 <= hwinfo->max_sample_rate)) + efw->supported_sampling_rate |= SNDRV_PCM_RATE_96000; + if ((hwinfo->min_sample_rate <= 176400) + && (176400 <= hwinfo->max_sample_rate)) + efw->supported_sampling_rate |= SNDRV_PCM_RATE_176400; + if ((hwinfo->min_sample_rate <= 192000) + && (192000 <= hwinfo->max_sample_rate)) + efw->supported_sampling_rate |= SNDRV_PCM_RATE_192000; + + /* the number of MIDI ports, not of MIDI conformant data channels */ + if (hwinfo->midi_out_ports > SND_EFW_MAX_MIDI_OUT_PORTS || + hwinfo->midi_in_ports > SND_EFW_MAX_MIDI_IN_PORTS) { + err = -EIO; + goto end; + } + efw->midi_out_ports = hwinfo->midi_out_ports; + efw->midi_in_ports = hwinfo->midi_in_ports; + + if (hwinfo->amdtp_tx_pcm_channels > AMDTP_MAX_CHANNELS_FOR_PCM || + hwinfo->amdtp_tx_pcm_channels_2x > AMDTP_MAX_CHANNELS_FOR_PCM || + hwinfo->amdtp_tx_pcm_channels_4x > AMDTP_MAX_CHANNELS_FOR_PCM || + hwinfo->amdtp_rx_pcm_channels > AMDTP_MAX_CHANNELS_FOR_PCM || + hwinfo->amdtp_rx_pcm_channels_2x > AMDTP_MAX_CHANNELS_FOR_PCM || + hwinfo->amdtp_rx_pcm_channels_4x > AMDTP_MAX_CHANNELS_FOR_PCM) { + err = -ENOSYS; + goto end; + } + efw->pcm_capture_channels[0] = hwinfo->amdtp_tx_pcm_channels; + efw->pcm_capture_channels[1] = hwinfo->amdtp_tx_pcm_channels_2x; + efw->pcm_capture_channels[2] = hwinfo->amdtp_tx_pcm_channels_4x; + efw->pcm_playback_channels[0] = hwinfo->amdtp_rx_pcm_channels; + efw->pcm_playback_channels[1] = hwinfo->amdtp_rx_pcm_channels_2x; + efw->pcm_playback_channels[2] = hwinfo->amdtp_rx_pcm_channels_4x; + + /* Hardware metering. */ + if (hwinfo->phys_in_grp_count > HWINFO_MAX_CAPS_GROUPS || + hwinfo->phys_out_grp_count > HWINFO_MAX_CAPS_GROUPS) { + err = -EIO; + goto end; + } + efw->phys_in = hwinfo->phys_in; + efw->phys_out = hwinfo->phys_out; + efw->phys_in_grp_count = hwinfo->phys_in_grp_count; + efw->phys_out_grp_count = hwinfo->phys_out_grp_count; + memcpy(&efw->phys_in_grps, hwinfo->phys_in_grps, + sizeof(struct snd_efw_phys_grp) * hwinfo->phys_in_grp_count); + memcpy(&efw->phys_out_grps, hwinfo->phys_out_grps, + sizeof(struct snd_efw_phys_grp) * hwinfo->phys_out_grp_count); +end: + kfree(hwinfo); + return err; +} + +/* + * This module releases the FireWire unit data after all ALSA character devices + * are released by applications. This is for releasing stream data or finishing + * transactions safely. Thus at returning from .remove(), this module still keep + * references for the unit. + */ +static void +efw_card_free(struct snd_card *card) +{ + struct snd_efw *efw = card->private_data; + + snd_efw_stream_destroy_duplex(efw); + snd_efw_transaction_remove_instance(efw); + fw_unit_put(efw->unit); + + kfree(efw->resp_buf); + + if (efw->card_index >= 0) { + mutex_lock(&devices_mutex); + clear_bit(efw->card_index, devices_used); + mutex_unlock(&devices_mutex); + } + + mutex_destroy(&efw->mutex); +} + +static int +efw_probe(struct fw_unit *unit, + const struct ieee1394_device_id *entry) +{ + struct snd_card *card; + struct snd_efw *efw; + int card_index, err; + + mutex_lock(&devices_mutex); + + /* check registered cards */ + for (card_index = 0; card_index < SNDRV_CARDS; ++card_index) { + if (!test_bit(card_index, devices_used) && enable[card_index]) + break; + } + if (card_index >= SNDRV_CARDS) { + err = -ENOENT; + goto end; + } + + err = snd_card_new(&unit->device, index[card_index], id[card_index], + THIS_MODULE, sizeof(struct snd_efw), &card); + if (err < 0) + goto end; + efw = card->private_data; + efw->card_index = card_index; + set_bit(card_index, devices_used); + card->private_free = efw_card_free; + + efw->card = card; + efw->unit = fw_unit_get(unit); + mutex_init(&efw->mutex); + spin_lock_init(&efw->lock); + init_waitqueue_head(&efw->hwdep_wait); + + /* prepare response buffer */ + snd_efw_resp_buf_size = clamp(snd_efw_resp_buf_size, + SND_EFW_RESPONSE_MAXIMUM_BYTES, 4096U); + efw->resp_buf = kzalloc(snd_efw_resp_buf_size, GFP_KERNEL); + if (efw->resp_buf == NULL) { + err = -ENOMEM; + goto error; + } + efw->pull_ptr = efw->push_ptr = efw->resp_buf; + snd_efw_transaction_add_instance(efw); + + err = get_hardware_info(efw); + if (err < 0) + goto error; + if (entry->model_id == MODEL_ECHO_AUDIOFIRE_9) + efw->is_af9 = true; + + snd_efw_proc_init(efw); + + if (efw->midi_out_ports || efw->midi_in_ports) { + err = snd_efw_create_midi_devices(efw); + if (err < 0) + goto error; + } + + err = snd_efw_create_pcm_devices(efw); + if (err < 0) + goto error; + + err = snd_efw_create_hwdep_device(efw); + if (err < 0) + goto error; + + err = snd_efw_stream_init_duplex(efw); + if (err < 0) + goto error; + + err = snd_card_register(card); + if (err < 0) { + snd_efw_stream_destroy_duplex(efw); + goto error; + } + + dev_set_drvdata(&unit->device, efw); +end: + mutex_unlock(&devices_mutex); + return err; +error: + snd_efw_transaction_remove_instance(efw); + mutex_unlock(&devices_mutex); + snd_card_free(card); + return err; +} + +static void efw_update(struct fw_unit *unit) +{ + struct snd_efw *efw = dev_get_drvdata(&unit->device); + + snd_efw_transaction_bus_reset(efw->unit); + snd_efw_stream_update_duplex(efw); +} + +static void efw_remove(struct fw_unit *unit) +{ + struct snd_efw *efw = dev_get_drvdata(&unit->device); + + /* No need to wait for releasing card object in this context. */ + snd_card_free_when_closed(efw->card); +} + +static const struct ieee1394_device_id efw_id_table[] = { + SND_EFW_DEV_ENTRY(VENDOR_LOUD, MODEL_MACKIE_400F), + SND_EFW_DEV_ENTRY(VENDOR_LOUD, MODEL_MACKIE_1200F), + SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_8), + SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_12), + SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_12HD), + SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_12_APPLE), + SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_2), + SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_4), + SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_AUDIOFIRE_9), + SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_FIREWORKS_8), + SND_EFW_DEV_ENTRY(VENDOR_ECHO, MODEL_ECHO_FIREWORKS_HDMI), + SND_EFW_DEV_ENTRY(VENDOR_GIBSON, MODEL_GIBSON_RIP), + SND_EFW_DEV_ENTRY(VENDOR_GIBSON, MODEL_GIBSON_GOLDTOP), + {} +}; +MODULE_DEVICE_TABLE(ieee1394, efw_id_table); + +static struct fw_driver efw_driver = { + .driver = { + .owner = THIS_MODULE, + .name = "snd-fireworks", + .bus = &fw_bus_type, + }, + .probe = efw_probe, + .update = efw_update, + .remove = efw_remove, + .id_table = efw_id_table, +}; + +static int __init snd_efw_init(void) +{ + int err; + + err = snd_efw_transaction_register(); + if (err < 0) + goto end; + + err = driver_register(&efw_driver.driver); + if (err < 0) + snd_efw_transaction_unregister(); + +end: + return err; +} + +static void __exit snd_efw_exit(void) +{ + snd_efw_transaction_unregister(); + driver_unregister(&efw_driver.driver); +} + +module_init(snd_efw_init); +module_exit(snd_efw_exit); diff --git a/kernel/sound/firewire/fireworks/fireworks.h b/kernel/sound/firewire/fireworks/fireworks.h new file mode 100644 index 000000000..4f0201a95 --- /dev/null +++ b/kernel/sound/firewire/fireworks/fireworks.h @@ -0,0 +1,232 @@ +/* + * fireworks.h - a part of driver for Fireworks based devices + * + * Copyright (c) 2009-2010 Clemens Ladisch + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ +#ifndef SOUND_FIREWORKS_H_INCLUDED +#define SOUND_FIREWORKS_H_INCLUDED + +#include <linux/compat.h> +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/firewire-constants.h> +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/delay.h> +#include <linux/slab.h> + +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/info.h> +#include <sound/rawmidi.h> +#include <sound/pcm_params.h> +#include <sound/firewire.h> +#include <sound/hwdep.h> + +#include "../packets-buffer.h" +#include "../iso-resources.h" +#include "../amdtp.h" +#include "../cmp.h" +#include "../lib.h" + +#define SND_EFW_MAX_MIDI_OUT_PORTS 2 +#define SND_EFW_MAX_MIDI_IN_PORTS 2 + +#define SND_EFW_MULTIPLIER_MODES 3 +#define HWINFO_NAME_SIZE_BYTES 32 +#define HWINFO_MAX_CAPS_GROUPS 8 + +/* + * This should be greater than maximum bytes for EFW response content. + * Currently response against command for isochronous channel mapping is + * confirmed to be the maximum one. But for flexibility, use maximum data + * payload for asynchronous primary packets at S100 (Cable base rate) in + * IEEE Std 1394-1995. + */ +#define SND_EFW_RESPONSE_MAXIMUM_BYTES 0x200U + +extern unsigned int snd_efw_resp_buf_size; +extern bool snd_efw_resp_buf_debug; + +struct snd_efw_phys_grp { + u8 type; /* see enum snd_efw_grp_type */ + u8 count; +} __packed; + +struct snd_efw { + struct snd_card *card; + struct fw_unit *unit; + int card_index; + + struct mutex mutex; + spinlock_t lock; + + /* for transaction */ + u32 seqnum; + bool resp_addr_changable; + + /* for quirks */ + bool is_af9; + u32 firmware_version; + + unsigned int midi_in_ports; + unsigned int midi_out_ports; + + unsigned int supported_sampling_rate; + unsigned int pcm_capture_channels[SND_EFW_MULTIPLIER_MODES]; + unsigned int pcm_playback_channels[SND_EFW_MULTIPLIER_MODES]; + + struct amdtp_stream *master; + struct amdtp_stream tx_stream; + struct amdtp_stream rx_stream; + struct cmp_connection out_conn; + struct cmp_connection in_conn; + atomic_t capture_substreams; + atomic_t playback_substreams; + + /* hardware metering parameters */ + unsigned int phys_out; + unsigned int phys_in; + unsigned int phys_out_grp_count; + unsigned int phys_in_grp_count; + struct snd_efw_phys_grp phys_out_grps[HWINFO_MAX_CAPS_GROUPS]; + struct snd_efw_phys_grp phys_in_grps[HWINFO_MAX_CAPS_GROUPS]; + + /* for uapi */ + int dev_lock_count; + bool dev_lock_changed; + wait_queue_head_t hwdep_wait; + + /* response queue */ + u8 *resp_buf; + u8 *pull_ptr; + u8 *push_ptr; + unsigned int resp_queues; +}; + +int snd_efw_transaction_cmd(struct fw_unit *unit, + const void *cmd, unsigned int size); +int snd_efw_transaction_run(struct fw_unit *unit, + const void *cmd, unsigned int cmd_size, + void *resp, unsigned int resp_size); +int snd_efw_transaction_register(void); +void snd_efw_transaction_unregister(void); +void snd_efw_transaction_bus_reset(struct fw_unit *unit); +void snd_efw_transaction_add_instance(struct snd_efw *efw); +void snd_efw_transaction_remove_instance(struct snd_efw *efw); + +struct snd_efw_hwinfo { + u32 flags; + u32 guid_hi; + u32 guid_lo; + u32 type; + u32 version; + char vendor_name[HWINFO_NAME_SIZE_BYTES]; + char model_name[HWINFO_NAME_SIZE_BYTES]; + u32 supported_clocks; + u32 amdtp_rx_pcm_channels; + u32 amdtp_tx_pcm_channels; + u32 phys_out; + u32 phys_in; + u32 phys_out_grp_count; + struct snd_efw_phys_grp phys_out_grps[HWINFO_MAX_CAPS_GROUPS]; + u32 phys_in_grp_count; + struct snd_efw_phys_grp phys_in_grps[HWINFO_MAX_CAPS_GROUPS]; + u32 midi_out_ports; + u32 midi_in_ports; + u32 max_sample_rate; + u32 min_sample_rate; + u32 dsp_version; + u32 arm_version; + u32 mixer_playback_channels; + u32 mixer_capture_channels; + u32 fpga_version; + u32 amdtp_rx_pcm_channels_2x; + u32 amdtp_tx_pcm_channels_2x; + u32 amdtp_rx_pcm_channels_4x; + u32 amdtp_tx_pcm_channels_4x; + u32 reserved[16]; +} __packed; +enum snd_efw_grp_type { + SND_EFW_CH_TYPE_ANALOG = 0, + SND_EFW_CH_TYPE_SPDIF = 1, + SND_EFW_CH_TYPE_ADAT = 2, + SND_EFW_CH_TYPE_SPDIF_OR_ADAT = 3, + SND_EFW_CH_TYPE_ANALOG_MIRRORING = 4, + SND_EFW_CH_TYPE_HEADPHONES = 5, + SND_EFW_CH_TYPE_I2S = 6, + SND_EFW_CH_TYPE_GUITAR = 7, + SND_EFW_CH_TYPE_PIEZO_GUITAR = 8, + SND_EFW_CH_TYPE_GUITAR_STRING = 9, + SND_EFW_CH_TYPE_DUMMY +}; +struct snd_efw_phys_meters { + u32 status; /* guitar state/midi signal/clock input detect */ + u32 reserved0; + u32 reserved1; + u32 reserved2; + u32 reserved3; + u32 out_meters; + u32 in_meters; + u32 reserved4; + u32 reserved5; + u32 values[0]; +} __packed; +enum snd_efw_clock_source { + SND_EFW_CLOCK_SOURCE_INTERNAL = 0, + SND_EFW_CLOCK_SOURCE_SYTMATCH = 1, + SND_EFW_CLOCK_SOURCE_WORDCLOCK = 2, + SND_EFW_CLOCK_SOURCE_SPDIF = 3, + SND_EFW_CLOCK_SOURCE_ADAT_1 = 4, + SND_EFW_CLOCK_SOURCE_ADAT_2 = 5, + SND_EFW_CLOCK_SOURCE_CONTINUOUS = 6 /* internal variable clock */ +}; +enum snd_efw_transport_mode { + SND_EFW_TRANSPORT_MODE_WINDOWS = 0, + SND_EFW_TRANSPORT_MODE_IEC61883 = 1, +}; +int snd_efw_command_set_resp_addr(struct snd_efw *efw, + u16 addr_high, u32 addr_low); +int snd_efw_command_set_tx_mode(struct snd_efw *efw, + enum snd_efw_transport_mode mode); +int snd_efw_command_get_hwinfo(struct snd_efw *efw, + struct snd_efw_hwinfo *hwinfo); +int snd_efw_command_get_phys_meters(struct snd_efw *efw, + struct snd_efw_phys_meters *meters, + unsigned int len); +int snd_efw_command_get_clock_source(struct snd_efw *efw, + enum snd_efw_clock_source *source); +int snd_efw_command_get_sampling_rate(struct snd_efw *efw, unsigned int *rate); +int snd_efw_command_set_sampling_rate(struct snd_efw *efw, unsigned int rate); + +int snd_efw_stream_init_duplex(struct snd_efw *efw); +int snd_efw_stream_start_duplex(struct snd_efw *efw, unsigned int rate); +void snd_efw_stream_stop_duplex(struct snd_efw *efw); +void snd_efw_stream_update_duplex(struct snd_efw *efw); +void snd_efw_stream_destroy_duplex(struct snd_efw *efw); +void snd_efw_stream_lock_changed(struct snd_efw *efw); +int snd_efw_stream_lock_try(struct snd_efw *efw); +void snd_efw_stream_lock_release(struct snd_efw *efw); + +void snd_efw_proc_init(struct snd_efw *efw); + +int snd_efw_create_midi_devices(struct snd_efw *efw); + +int snd_efw_create_pcm_devices(struct snd_efw *efw); +int snd_efw_get_multiplier_mode(unsigned int sampling_rate, unsigned int *mode); + +int snd_efw_create_hwdep_device(struct snd_efw *efw); + +#define SND_EFW_DEV_ENTRY(vendor, model) \ +{ \ + .match_flags = IEEE1394_MATCH_VENDOR_ID | \ + IEEE1394_MATCH_MODEL_ID, \ + .vendor_id = vendor,\ + .model_id = model \ +} + +#endif diff --git a/kernel/sound/firewire/fireworks/fireworks_command.c b/kernel/sound/firewire/fireworks/fireworks_command.c new file mode 100644 index 000000000..166f80584 --- /dev/null +++ b/kernel/sound/firewire/fireworks/fireworks_command.c @@ -0,0 +1,372 @@ +/* + * fireworks_command.c - a part of driver for Fireworks based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./fireworks.h" + +/* + * This driver uses transaction version 1 or later to use extended hardware + * information. Then too old devices are not available. + * + * Each commands are not required to have continuous sequence numbers. This + * number is just used to match command and response. + * + * This module support a part of commands. Please see FFADO if you want to see + * whole commands. But there are some commands which FFADO don't implement. + * + * Fireworks also supports AV/C general commands and AV/C Stream Format + * Information commands. But this module don't use them. + */ + +#define KERNEL_SEQNUM_MIN (SND_EFW_TRANSACTION_USER_SEQNUM_MAX + 2) +#define KERNEL_SEQNUM_MAX ((u32)~0) + +/* for clock source and sampling rate */ +struct efc_clock { + u32 source; + u32 sampling_rate; + u32 index; +}; + +/* command categories */ +enum efc_category { + EFC_CAT_HWINFO = 0, + EFC_CAT_TRANSPORT = 2, + EFC_CAT_HWCTL = 3, +}; + +/* hardware info category commands */ +enum efc_cmd_hwinfo { + EFC_CMD_HWINFO_GET_CAPS = 0, + EFC_CMD_HWINFO_GET_POLLED = 1, + EFC_CMD_HWINFO_SET_RESP_ADDR = 2 +}; + +enum efc_cmd_transport { + EFC_CMD_TRANSPORT_SET_TX_MODE = 0 +}; + +/* hardware control category commands */ +enum efc_cmd_hwctl { + EFC_CMD_HWCTL_SET_CLOCK = 0, + EFC_CMD_HWCTL_GET_CLOCK = 1, + EFC_CMD_HWCTL_IDENTIFY = 5 +}; + +/* return values in response */ +enum efr_status { + EFR_STATUS_OK = 0, + EFR_STATUS_BAD = 1, + EFR_STATUS_BAD_COMMAND = 2, + EFR_STATUS_COMM_ERR = 3, + EFR_STATUS_BAD_QUAD_COUNT = 4, + EFR_STATUS_UNSUPPORTED = 5, + EFR_STATUS_1394_TIMEOUT = 6, + EFR_STATUS_DSP_TIMEOUT = 7, + EFR_STATUS_BAD_RATE = 8, + EFR_STATUS_BAD_CLOCK = 9, + EFR_STATUS_BAD_CHANNEL = 10, + EFR_STATUS_BAD_PAN = 11, + EFR_STATUS_FLASH_BUSY = 12, + EFR_STATUS_BAD_MIRROR = 13, + EFR_STATUS_BAD_LED = 14, + EFR_STATUS_BAD_PARAMETER = 15, + EFR_STATUS_INCOMPLETE = 0x80000000 +}; + +static const char *const efr_status_names[] = { + [EFR_STATUS_OK] = "OK", + [EFR_STATUS_BAD] = "bad", + [EFR_STATUS_BAD_COMMAND] = "bad command", + [EFR_STATUS_COMM_ERR] = "comm err", + [EFR_STATUS_BAD_QUAD_COUNT] = "bad quad count", + [EFR_STATUS_UNSUPPORTED] = "unsupported", + [EFR_STATUS_1394_TIMEOUT] = "1394 timeout", + [EFR_STATUS_DSP_TIMEOUT] = "DSP timeout", + [EFR_STATUS_BAD_RATE] = "bad rate", + [EFR_STATUS_BAD_CLOCK] = "bad clock", + [EFR_STATUS_BAD_CHANNEL] = "bad channel", + [EFR_STATUS_BAD_PAN] = "bad pan", + [EFR_STATUS_FLASH_BUSY] = "flash busy", + [EFR_STATUS_BAD_MIRROR] = "bad mirror", + [EFR_STATUS_BAD_LED] = "bad LED", + [EFR_STATUS_BAD_PARAMETER] = "bad parameter", + [EFR_STATUS_BAD_PARAMETER + 1] = "incomplete" +}; + +static int +efw_transaction(struct snd_efw *efw, unsigned int category, + unsigned int command, + const __be32 *params, unsigned int param_bytes, + const __be32 *resp, unsigned int resp_bytes) +{ + struct snd_efw_transaction *header; + __be32 *buf; + u32 seqnum; + unsigned int buf_bytes, cmd_bytes; + int err; + + /* calculate buffer size*/ + buf_bytes = sizeof(struct snd_efw_transaction) + + max(param_bytes, resp_bytes); + + /* keep buffer */ + buf = kzalloc(buf_bytes, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + /* to keep consistency of sequence number */ + spin_lock(&efw->lock); + if ((efw->seqnum < KERNEL_SEQNUM_MIN) || + (efw->seqnum >= KERNEL_SEQNUM_MAX - 2)) + efw->seqnum = KERNEL_SEQNUM_MIN; + else + efw->seqnum += 2; + seqnum = efw->seqnum; + spin_unlock(&efw->lock); + + /* fill transaction header fields */ + cmd_bytes = sizeof(struct snd_efw_transaction) + param_bytes; + header = (struct snd_efw_transaction *)buf; + header->length = cpu_to_be32(cmd_bytes / sizeof(__be32)); + header->version = cpu_to_be32(1); + header->seqnum = cpu_to_be32(seqnum); + header->category = cpu_to_be32(category); + header->command = cpu_to_be32(command); + header->status = 0; + + /* fill transaction command parameters */ + memcpy(header->params, params, param_bytes); + + err = snd_efw_transaction_run(efw->unit, buf, cmd_bytes, + buf, buf_bytes); + if (err < 0) + goto end; + + /* check transaction header fields */ + if ((be32_to_cpu(header->version) < 1) || + (be32_to_cpu(header->category) != category) || + (be32_to_cpu(header->command) != command) || + (be32_to_cpu(header->status) != EFR_STATUS_OK)) { + dev_err(&efw->unit->device, "EFW command failed [%u/%u]: %s\n", + be32_to_cpu(header->category), + be32_to_cpu(header->command), + efr_status_names[be32_to_cpu(header->status)]); + err = -EIO; + goto end; + } + + if (resp == NULL) + goto end; + + /* fill transaction response parameters */ + memset((void *)resp, 0, resp_bytes); + resp_bytes = min_t(unsigned int, resp_bytes, + be32_to_cpu(header->length) * sizeof(__be32) - + sizeof(struct snd_efw_transaction)); + memcpy((void *)resp, &buf[6], resp_bytes); +end: + kfree(buf); + return err; +} + +/* + * The address in host system for transaction response is changable when the + * device supports. struct hwinfo.flags includes its flag. The default is + * MEMORY_SPACE_EFW_RESPONSE. + */ +int snd_efw_command_set_resp_addr(struct snd_efw *efw, + u16 addr_high, u32 addr_low) +{ + __be32 addr[2]; + + addr[0] = cpu_to_be32(addr_high); + addr[1] = cpu_to_be32(addr_low); + + if (!efw->resp_addr_changable) + return -ENOSYS; + + return efw_transaction(efw, EFC_CAT_HWCTL, + EFC_CMD_HWINFO_SET_RESP_ADDR, + addr, sizeof(addr), NULL, 0); +} + +/* + * This is for timestamp processing. In Windows mode, all 32bit fields of second + * CIP header in AMDTP transmit packet is used for 'presentation timestamp'. In + * 'no data' packet the value of this field is 0x90ffffff. + */ +int snd_efw_command_set_tx_mode(struct snd_efw *efw, + enum snd_efw_transport_mode mode) +{ + __be32 param = cpu_to_be32(mode); + return efw_transaction(efw, EFC_CAT_TRANSPORT, + EFC_CMD_TRANSPORT_SET_TX_MODE, + ¶m, sizeof(param), NULL, 0); +} + +int snd_efw_command_get_hwinfo(struct snd_efw *efw, + struct snd_efw_hwinfo *hwinfo) +{ + int err; + + err = efw_transaction(efw, EFC_CAT_HWINFO, + EFC_CMD_HWINFO_GET_CAPS, + NULL, 0, (__be32 *)hwinfo, sizeof(*hwinfo)); + if (err < 0) + goto end; + + be32_to_cpus(&hwinfo->flags); + be32_to_cpus(&hwinfo->guid_hi); + be32_to_cpus(&hwinfo->guid_lo); + be32_to_cpus(&hwinfo->type); + be32_to_cpus(&hwinfo->version); + be32_to_cpus(&hwinfo->supported_clocks); + be32_to_cpus(&hwinfo->amdtp_rx_pcm_channels); + be32_to_cpus(&hwinfo->amdtp_tx_pcm_channels); + be32_to_cpus(&hwinfo->phys_out); + be32_to_cpus(&hwinfo->phys_in); + be32_to_cpus(&hwinfo->phys_out_grp_count); + be32_to_cpus(&hwinfo->phys_in_grp_count); + be32_to_cpus(&hwinfo->midi_out_ports); + be32_to_cpus(&hwinfo->midi_in_ports); + be32_to_cpus(&hwinfo->max_sample_rate); + be32_to_cpus(&hwinfo->min_sample_rate); + be32_to_cpus(&hwinfo->dsp_version); + be32_to_cpus(&hwinfo->arm_version); + be32_to_cpus(&hwinfo->mixer_playback_channels); + be32_to_cpus(&hwinfo->mixer_capture_channels); + be32_to_cpus(&hwinfo->fpga_version); + be32_to_cpus(&hwinfo->amdtp_rx_pcm_channels_2x); + be32_to_cpus(&hwinfo->amdtp_tx_pcm_channels_2x); + be32_to_cpus(&hwinfo->amdtp_rx_pcm_channels_4x); + be32_to_cpus(&hwinfo->amdtp_tx_pcm_channels_4x); + + /* ensure terminated */ + hwinfo->vendor_name[HWINFO_NAME_SIZE_BYTES - 1] = '\0'; + hwinfo->model_name[HWINFO_NAME_SIZE_BYTES - 1] = '\0'; +end: + return err; +} + +int snd_efw_command_get_phys_meters(struct snd_efw *efw, + struct snd_efw_phys_meters *meters, + unsigned int len) +{ + __be32 *buf = (__be32 *)meters; + unsigned int i; + int err; + + err = efw_transaction(efw, EFC_CAT_HWINFO, + EFC_CMD_HWINFO_GET_POLLED, + NULL, 0, (__be32 *)meters, len); + if (err >= 0) + for (i = 0; i < len / sizeof(u32); i++) + be32_to_cpus(&buf[i]); + + return err; +} + +static int +command_get_clock(struct snd_efw *efw, struct efc_clock *clock) +{ + int err; + + err = efw_transaction(efw, EFC_CAT_HWCTL, + EFC_CMD_HWCTL_GET_CLOCK, + NULL, 0, + (__be32 *)clock, sizeof(struct efc_clock)); + if (err >= 0) { + be32_to_cpus(&clock->source); + be32_to_cpus(&clock->sampling_rate); + be32_to_cpus(&clock->index); + } + + return err; +} + +/* give UINT_MAX if set nothing */ +static int +command_set_clock(struct snd_efw *efw, + unsigned int source, unsigned int rate) +{ + struct efc_clock clock = {0}; + int err; + + /* check arguments */ + if ((source == UINT_MAX) && (rate == UINT_MAX)) { + err = -EINVAL; + goto end; + } + + /* get current status */ + err = command_get_clock(efw, &clock); + if (err < 0) + goto end; + + /* no need */ + if ((clock.source == source) && (clock.sampling_rate == rate)) + goto end; + + /* set params */ + if ((source != UINT_MAX) && (clock.source != source)) + clock.source = source; + if ((rate != UINT_MAX) && (clock.sampling_rate != rate)) + clock.sampling_rate = rate; + clock.index = 0; + + cpu_to_be32s(&clock.source); + cpu_to_be32s(&clock.sampling_rate); + cpu_to_be32s(&clock.index); + + err = efw_transaction(efw, EFC_CAT_HWCTL, + EFC_CMD_HWCTL_SET_CLOCK, + (__be32 *)&clock, sizeof(struct efc_clock), + NULL, 0); + if (err < 0) + goto end; + + /* + * With firmware version 5.8, just after changing clock state, these + * parameters are not immediately retrieved by get command. In my + * trial, there needs to be 100msec to get changed parameters. + */ + msleep(150); +end: + return err; +} + +int snd_efw_command_get_clock_source(struct snd_efw *efw, + enum snd_efw_clock_source *source) +{ + int err; + struct efc_clock clock = {0}; + + err = command_get_clock(efw, &clock); + if (err >= 0) + *source = clock.source; + + return err; +} + +int snd_efw_command_get_sampling_rate(struct snd_efw *efw, unsigned int *rate) +{ + int err; + struct efc_clock clock = {0}; + + err = command_get_clock(efw, &clock); + if (err >= 0) + *rate = clock.sampling_rate; + + return err; +} + +int snd_efw_command_set_sampling_rate(struct snd_efw *efw, unsigned int rate) +{ + return command_set_clock(efw, UINT_MAX, rate); +} + diff --git a/kernel/sound/firewire/fireworks/fireworks_hwdep.c b/kernel/sound/firewire/fireworks/fireworks_hwdep.c new file mode 100644 index 000000000..33df8655f --- /dev/null +++ b/kernel/sound/firewire/fireworks/fireworks_hwdep.c @@ -0,0 +1,298 @@ +/* + * fireworks_hwdep.c - a part of driver for Fireworks based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +/* + * This codes have five functionalities. + * + * 1.get information about firewire node + * 2.get notification about starting/stopping stream + * 3.lock/unlock streaming + * 4.transmit command of EFW transaction + * 5.receive response of EFW transaction + * + */ + +#include "fireworks.h" + +static long +hwdep_read_resp_buf(struct snd_efw *efw, char __user *buf, long remained, + loff_t *offset) +{ + unsigned int length, till_end, type; + struct snd_efw_transaction *t; + long count = 0; + + if (remained < sizeof(type) + sizeof(struct snd_efw_transaction)) + return -ENOSPC; + + /* data type is SNDRV_FIREWIRE_EVENT_EFW_RESPONSE */ + type = SNDRV_FIREWIRE_EVENT_EFW_RESPONSE; + if (copy_to_user(buf, &type, sizeof(type))) + return -EFAULT; + remained -= sizeof(type); + buf += sizeof(type); + + /* write into buffer as many responses as possible */ + while (efw->resp_queues > 0) { + t = (struct snd_efw_transaction *)(efw->pull_ptr); + length = be32_to_cpu(t->length) * sizeof(__be32); + + /* confirm enough space for this response */ + if (remained < length) + break; + + /* copy from ring buffer to user buffer */ + while (length > 0) { + till_end = snd_efw_resp_buf_size - + (unsigned int)(efw->pull_ptr - efw->resp_buf); + till_end = min_t(unsigned int, length, till_end); + + if (copy_to_user(buf, efw->pull_ptr, till_end)) + return -EFAULT; + + efw->pull_ptr += till_end; + if (efw->pull_ptr >= efw->resp_buf + + snd_efw_resp_buf_size) + efw->pull_ptr -= snd_efw_resp_buf_size; + + length -= till_end; + buf += till_end; + count += till_end; + remained -= till_end; + } + + efw->resp_queues--; + } + + return count; +} + +static long +hwdep_read_locked(struct snd_efw *efw, char __user *buf, long count, + loff_t *offset) +{ + union snd_firewire_event event; + + memset(&event, 0, sizeof(event)); + + event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS; + event.lock_status.status = (efw->dev_lock_count > 0); + efw->dev_lock_changed = false; + + count = min_t(long, count, sizeof(event.lock_status)); + + if (copy_to_user(buf, &event, count)) + return -EFAULT; + + return count; +} + +static long +hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count, + loff_t *offset) +{ + struct snd_efw *efw = hwdep->private_data; + DEFINE_WAIT(wait); + + spin_lock_irq(&efw->lock); + + while ((!efw->dev_lock_changed) && (efw->resp_queues == 0)) { + prepare_to_wait(&efw->hwdep_wait, &wait, TASK_INTERRUPTIBLE); + spin_unlock_irq(&efw->lock); + schedule(); + finish_wait(&efw->hwdep_wait, &wait); + if (signal_pending(current)) + return -ERESTARTSYS; + spin_lock_irq(&efw->lock); + } + + if (efw->dev_lock_changed) + count = hwdep_read_locked(efw, buf, count, offset); + else if (efw->resp_queues > 0) + count = hwdep_read_resp_buf(efw, buf, count, offset); + + spin_unlock_irq(&efw->lock); + + return count; +} + +static long +hwdep_write(struct snd_hwdep *hwdep, const char __user *data, long count, + loff_t *offset) +{ + struct snd_efw *efw = hwdep->private_data; + u32 seqnum; + u8 *buf; + + if (count < sizeof(struct snd_efw_transaction) || + SND_EFW_RESPONSE_MAXIMUM_BYTES < count) + return -EINVAL; + + buf = memdup_user(data, count); + if (IS_ERR(buf)) + return PTR_ERR(buf); + + /* check seqnum is not for kernel-land */ + seqnum = be32_to_cpu(((struct snd_efw_transaction *)buf)->seqnum); + if (seqnum > SND_EFW_TRANSACTION_USER_SEQNUM_MAX) { + count = -EINVAL; + goto end; + } + + if (snd_efw_transaction_cmd(efw->unit, buf, count) < 0) + count = -EIO; +end: + kfree(buf); + return count; +} + +static unsigned int +hwdep_poll(struct snd_hwdep *hwdep, struct file *file, poll_table *wait) +{ + struct snd_efw *efw = hwdep->private_data; + unsigned int events; + + poll_wait(file, &efw->hwdep_wait, wait); + + spin_lock_irq(&efw->lock); + if (efw->dev_lock_changed || (efw->resp_queues > 0)) + events = POLLIN | POLLRDNORM; + else + events = 0; + spin_unlock_irq(&efw->lock); + + return events | POLLOUT; +} + +static int +hwdep_get_info(struct snd_efw *efw, void __user *arg) +{ + struct fw_device *dev = fw_parent_device(efw->unit); + struct snd_firewire_get_info info; + + memset(&info, 0, sizeof(info)); + info.type = SNDRV_FIREWIRE_TYPE_FIREWORKS; + info.card = dev->card->index; + *(__be32 *)&info.guid[0] = cpu_to_be32(dev->config_rom[3]); + *(__be32 *)&info.guid[4] = cpu_to_be32(dev->config_rom[4]); + strlcpy(info.device_name, dev_name(&dev->device), + sizeof(info.device_name)); + + if (copy_to_user(arg, &info, sizeof(info))) + return -EFAULT; + + return 0; +} + +static int +hwdep_lock(struct snd_efw *efw) +{ + int err; + + spin_lock_irq(&efw->lock); + + if (efw->dev_lock_count == 0) { + efw->dev_lock_count = -1; + err = 0; + } else { + err = -EBUSY; + } + + spin_unlock_irq(&efw->lock); + + return err; +} + +static int +hwdep_unlock(struct snd_efw *efw) +{ + int err; + + spin_lock_irq(&efw->lock); + + if (efw->dev_lock_count == -1) { + efw->dev_lock_count = 0; + err = 0; + } else { + err = -EBADFD; + } + + spin_unlock_irq(&efw->lock); + + return err; +} + +static int +hwdep_release(struct snd_hwdep *hwdep, struct file *file) +{ + struct snd_efw *efw = hwdep->private_data; + + spin_lock_irq(&efw->lock); + if (efw->dev_lock_count == -1) + efw->dev_lock_count = 0; + spin_unlock_irq(&efw->lock); + + return 0; +} + +static int +hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct snd_efw *efw = hwdep->private_data; + + switch (cmd) { + case SNDRV_FIREWIRE_IOCTL_GET_INFO: + return hwdep_get_info(efw, (void __user *)arg); + case SNDRV_FIREWIRE_IOCTL_LOCK: + return hwdep_lock(efw); + case SNDRV_FIREWIRE_IOCTL_UNLOCK: + return hwdep_unlock(efw); + default: + return -ENOIOCTLCMD; + } +} + +#ifdef CONFIG_COMPAT +static int +hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file, + unsigned int cmd, unsigned long arg) +{ + return hwdep_ioctl(hwdep, file, cmd, + (unsigned long)compat_ptr(arg)); +} +#else +#define hwdep_compat_ioctl NULL +#endif + +static const struct snd_hwdep_ops hwdep_ops = { + .read = hwdep_read, + .write = hwdep_write, + .release = hwdep_release, + .poll = hwdep_poll, + .ioctl = hwdep_ioctl, + .ioctl_compat = hwdep_compat_ioctl, +}; + +int snd_efw_create_hwdep_device(struct snd_efw *efw) +{ + struct snd_hwdep *hwdep; + int err; + + err = snd_hwdep_new(efw->card, "Fireworks", 0, &hwdep); + if (err < 0) + goto end; + strcpy(hwdep->name, "Fireworks"); + hwdep->iface = SNDRV_HWDEP_IFACE_FW_FIREWORKS; + hwdep->ops = hwdep_ops; + hwdep->private_data = efw; + hwdep->exclusive = true; +end: + return err; +} + diff --git a/kernel/sound/firewire/fireworks/fireworks_midi.c b/kernel/sound/firewire/fireworks/fireworks_midi.c new file mode 100644 index 000000000..cf9c65260 --- /dev/null +++ b/kernel/sound/firewire/fireworks/fireworks_midi.c @@ -0,0 +1,168 @@ +/* + * fireworks_midi.c - a part of driver for Fireworks based devices + * + * Copyright (c) 2009-2010 Clemens Ladisch + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ +#include "fireworks.h" + +static int midi_capture_open(struct snd_rawmidi_substream *substream) +{ + struct snd_efw *efw = substream->rmidi->private_data; + int err; + + err = snd_efw_stream_lock_try(efw); + if (err < 0) + goto end; + + atomic_inc(&efw->capture_substreams); + err = snd_efw_stream_start_duplex(efw, 0); + if (err < 0) + snd_efw_stream_lock_release(efw); + +end: + return err; +} + +static int midi_playback_open(struct snd_rawmidi_substream *substream) +{ + struct snd_efw *efw = substream->rmidi->private_data; + int err; + + err = snd_efw_stream_lock_try(efw); + if (err < 0) + goto end; + + atomic_inc(&efw->playback_substreams); + err = snd_efw_stream_start_duplex(efw, 0); + if (err < 0) + snd_efw_stream_lock_release(efw); +end: + return err; +} + +static int midi_capture_close(struct snd_rawmidi_substream *substream) +{ + struct snd_efw *efw = substream->rmidi->private_data; + + atomic_dec(&efw->capture_substreams); + snd_efw_stream_stop_duplex(efw); + + snd_efw_stream_lock_release(efw); + return 0; +} + +static int midi_playback_close(struct snd_rawmidi_substream *substream) +{ + struct snd_efw *efw = substream->rmidi->private_data; + + atomic_dec(&efw->playback_substreams); + snd_efw_stream_stop_duplex(efw); + + snd_efw_stream_lock_release(efw); + return 0; +} + +static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up) +{ + struct snd_efw *efw = substrm->rmidi->private_data; + unsigned long flags; + + spin_lock_irqsave(&efw->lock, flags); + + if (up) + amdtp_stream_midi_trigger(&efw->tx_stream, + substrm->number, substrm); + else + amdtp_stream_midi_trigger(&efw->tx_stream, + substrm->number, NULL); + + spin_unlock_irqrestore(&efw->lock, flags); +} + +static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up) +{ + struct snd_efw *efw = substrm->rmidi->private_data; + unsigned long flags; + + spin_lock_irqsave(&efw->lock, flags); + + if (up) + amdtp_stream_midi_trigger(&efw->rx_stream, + substrm->number, substrm); + else + amdtp_stream_midi_trigger(&efw->rx_stream, + substrm->number, NULL); + + spin_unlock_irqrestore(&efw->lock, flags); +} + +static struct snd_rawmidi_ops midi_capture_ops = { + .open = midi_capture_open, + .close = midi_capture_close, + .trigger = midi_capture_trigger, +}; + +static struct snd_rawmidi_ops midi_playback_ops = { + .open = midi_playback_open, + .close = midi_playback_close, + .trigger = midi_playback_trigger, +}; + +static void set_midi_substream_names(struct snd_efw *efw, + struct snd_rawmidi_str *str) +{ + struct snd_rawmidi_substream *subs; + + list_for_each_entry(subs, &str->substreams, list) { + snprintf(subs->name, sizeof(subs->name), + "%s MIDI %d", efw->card->shortname, subs->number + 1); + } +} + +int snd_efw_create_midi_devices(struct snd_efw *efw) +{ + struct snd_rawmidi *rmidi; + struct snd_rawmidi_str *str; + int err; + + /* create midi ports */ + err = snd_rawmidi_new(efw->card, efw->card->driver, 0, + efw->midi_out_ports, efw->midi_in_ports, + &rmidi); + if (err < 0) + return err; + + snprintf(rmidi->name, sizeof(rmidi->name), + "%s MIDI", efw->card->shortname); + rmidi->private_data = efw; + + if (efw->midi_in_ports > 0) { + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; + + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, + &midi_capture_ops); + + str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]; + + set_midi_substream_names(efw, str); + } + + if (efw->midi_out_ports > 0) { + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; + + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, + &midi_playback_ops); + + str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]; + + set_midi_substream_names(efw, str); + } + + if ((efw->midi_out_ports > 0) && (efw->midi_in_ports > 0)) + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX; + + return 0; +} diff --git a/kernel/sound/firewire/fireworks/fireworks_pcm.c b/kernel/sound/firewire/fireworks/fireworks_pcm.c new file mode 100644 index 000000000..8a34753de --- /dev/null +++ b/kernel/sound/firewire/fireworks/fireworks_pcm.c @@ -0,0 +1,403 @@ +/* + * fireworks_pcm.c - a part of driver for Fireworks based devices + * + * Copyright (c) 2009-2010 Clemens Ladisch + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ +#include "./fireworks.h" + +/* + * NOTE: + * Fireworks changes its AMDTP channels for PCM data according to its sampling + * rate. There are three modes. Here _XX is either _rx or _tx. + * 0: 32.0- 48.0 kHz then snd_efw_hwinfo.amdtp_XX_pcm_channels applied + * 1: 88.2- 96.0 kHz then snd_efw_hwinfo.amdtp_XX_pcm_channels_2x applied + * 2: 176.4-192.0 kHz then snd_efw_hwinfo.amdtp_XX_pcm_channels_4x applied + * + * The number of PCM channels for analog input and output are always fixed but + * the number of PCM channels for digital input and output are differed. + * + * Additionally, according to "AudioFire Owner's Manual Version 2.2", in some + * model, the number of PCM channels for digital input has more restriction + * depending on which digital interface is selected. + * - S/PDIF coaxial and optical : use input 1-2 + * - ADAT optical at 32.0-48.0 kHz : use input 1-8 + * - ADAT optical at 88.2-96.0 kHz : use input 1-4 (S/MUX format) + * + * The data in AMDTP channels for blank PCM channels are zero. + */ +static const unsigned int freq_table[] = { + /* multiplier mode 0 */ + [0] = 32000, + [1] = 44100, + [2] = 48000, + /* multiplier mode 1 */ + [3] = 88200, + [4] = 96000, + /* multiplier mode 2 */ + [5] = 176400, + [6] = 192000, +}; + +static inline unsigned int +get_multiplier_mode_with_index(unsigned int index) +{ + return ((int)index - 1) / 2; +} + +int snd_efw_get_multiplier_mode(unsigned int sampling_rate, unsigned int *mode) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(freq_table); i++) { + if (freq_table[i] == sampling_rate) { + *mode = get_multiplier_mode_with_index(i); + return 0; + } + } + + return -EINVAL; +} + +static int +hw_rule_rate(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) +{ + unsigned int *pcm_channels = rule->private; + struct snd_interval *r = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + const struct snd_interval *c = + hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS); + struct snd_interval t = { + .min = UINT_MAX, .max = 0, .integer = 1 + }; + unsigned int i, mode; + + for (i = 0; i < ARRAY_SIZE(freq_table); i++) { + mode = get_multiplier_mode_with_index(i); + if (!snd_interval_test(c, pcm_channels[mode])) + continue; + + t.min = min(t.min, freq_table[i]); + t.max = max(t.max, freq_table[i]); + } + + return snd_interval_refine(r, &t); +} + +static int +hw_rule_channels(struct snd_pcm_hw_params *params, struct snd_pcm_hw_rule *rule) +{ + unsigned int *pcm_channels = rule->private; + struct snd_interval *c = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + const struct snd_interval *r = + hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE); + struct snd_interval t = { + .min = UINT_MAX, .max = 0, .integer = 1 + }; + unsigned int i, mode; + + for (i = 0; i < ARRAY_SIZE(freq_table); i++) { + mode = get_multiplier_mode_with_index(i); + if (!snd_interval_test(r, freq_table[i])) + continue; + + t.min = min(t.min, pcm_channels[mode]); + t.max = max(t.max, pcm_channels[mode]); + } + + return snd_interval_refine(c, &t); +} + +static void +limit_channels(struct snd_pcm_hardware *hw, unsigned int *pcm_channels) +{ + unsigned int i, mode; + + hw->channels_min = UINT_MAX; + hw->channels_max = 0; + + for (i = 0; i < ARRAY_SIZE(freq_table); i++) { + mode = get_multiplier_mode_with_index(i); + if (pcm_channels[mode] == 0) + continue; + + hw->channels_min = min(hw->channels_min, pcm_channels[mode]); + hw->channels_max = max(hw->channels_max, pcm_channels[mode]); + } +} + +static void +limit_period_and_buffer(struct snd_pcm_hardware *hw) +{ + hw->periods_min = 2; /* SNDRV_PCM_INFO_BATCH */ + hw->periods_max = UINT_MAX; + + hw->period_bytes_min = 4 * hw->channels_max; /* bytes for a frame */ + + /* Just to prevent from allocating much pages. */ + hw->period_bytes_max = hw->period_bytes_min * 2048; + hw->buffer_bytes_max = hw->period_bytes_max * hw->periods_min; +} + +static int +pcm_init_hw_params(struct snd_efw *efw, + struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct amdtp_stream *s; + unsigned int *pcm_channels; + int err; + + runtime->hw.info = SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_JOINT_DUPLEX | + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID; + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { + runtime->hw.formats = AMDTP_IN_PCM_FORMAT_BITS; + s = &efw->tx_stream; + pcm_channels = efw->pcm_capture_channels; + } else { + runtime->hw.formats = AMDTP_OUT_PCM_FORMAT_BITS; + s = &efw->rx_stream; + pcm_channels = efw->pcm_playback_channels; + } + + /* limit rates */ + runtime->hw.rates = efw->supported_sampling_rate, + snd_pcm_limit_hw_rates(runtime); + + limit_channels(&runtime->hw, pcm_channels); + limit_period_and_buffer(&runtime->hw); + + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + hw_rule_channels, pcm_channels, + SNDRV_PCM_HW_PARAM_RATE, -1); + if (err < 0) + goto end; + + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + hw_rule_rate, pcm_channels, + SNDRV_PCM_HW_PARAM_CHANNELS, -1); + if (err < 0) + goto end; + + err = amdtp_stream_add_pcm_hw_constraints(s, runtime); +end: + return err; +} + +static int pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_efw *efw = substream->private_data; + unsigned int sampling_rate; + enum snd_efw_clock_source clock_source; + int err; + + err = snd_efw_stream_lock_try(efw); + if (err < 0) + goto end; + + err = pcm_init_hw_params(efw, substream); + if (err < 0) + goto err_locked; + + err = snd_efw_command_get_clock_source(efw, &clock_source); + if (err < 0) + goto err_locked; + + /* + * When source of clock is not internal or any PCM streams are running, + * available sampling rate is limited at current sampling rate. + */ + if ((clock_source != SND_EFW_CLOCK_SOURCE_INTERNAL) || + amdtp_stream_pcm_running(&efw->tx_stream) || + amdtp_stream_pcm_running(&efw->rx_stream)) { + err = snd_efw_command_get_sampling_rate(efw, &sampling_rate); + if (err < 0) + goto err_locked; + substream->runtime->hw.rate_min = sampling_rate; + substream->runtime->hw.rate_max = sampling_rate; + } + + snd_pcm_set_sync(substream); +end: + return err; +err_locked: + snd_efw_stream_lock_release(efw); + return err; +} + +static int pcm_close(struct snd_pcm_substream *substream) +{ + struct snd_efw *efw = substream->private_data; + snd_efw_stream_lock_release(efw); + return 0; +} + +static int pcm_capture_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_efw *efw = substream->private_data; + + if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) + atomic_inc(&efw->capture_substreams); + amdtp_stream_set_pcm_format(&efw->tx_stream, params_format(hw_params)); + + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); +} +static int pcm_playback_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_efw *efw = substream->private_data; + + if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) + atomic_inc(&efw->playback_substreams); + amdtp_stream_set_pcm_format(&efw->rx_stream, params_format(hw_params)); + + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); +} + +static int pcm_capture_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_efw *efw = substream->private_data; + + if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) + atomic_dec(&efw->capture_substreams); + + snd_efw_stream_stop_duplex(efw); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} +static int pcm_playback_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_efw *efw = substream->private_data; + + if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) + atomic_dec(&efw->playback_substreams); + + snd_efw_stream_stop_duplex(efw); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} + +static int pcm_capture_prepare(struct snd_pcm_substream *substream) +{ + struct snd_efw *efw = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + int err; + + err = snd_efw_stream_start_duplex(efw, runtime->rate); + if (err >= 0) + amdtp_stream_pcm_prepare(&efw->tx_stream); + + return err; +} +static int pcm_playback_prepare(struct snd_pcm_substream *substream) +{ + struct snd_efw *efw = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + int err; + + err = snd_efw_stream_start_duplex(efw, runtime->rate); + if (err >= 0) + amdtp_stream_pcm_prepare(&efw->rx_stream); + + return err; +} + +static int pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_efw *efw = substream->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + amdtp_stream_pcm_trigger(&efw->tx_stream, substream); + break; + case SNDRV_PCM_TRIGGER_STOP: + amdtp_stream_pcm_trigger(&efw->tx_stream, NULL); + break; + default: + return -EINVAL; + } + + return 0; +} +static int pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_efw *efw = substream->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + amdtp_stream_pcm_trigger(&efw->rx_stream, substream); + break; + case SNDRV_PCM_TRIGGER_STOP: + amdtp_stream_pcm_trigger(&efw->rx_stream, NULL); + break; + default: + return -EINVAL; + } + + return 0; +} + +static snd_pcm_uframes_t pcm_capture_pointer(struct snd_pcm_substream *sbstrm) +{ + struct snd_efw *efw = sbstrm->private_data; + return amdtp_stream_pcm_pointer(&efw->tx_stream); +} +static snd_pcm_uframes_t pcm_playback_pointer(struct snd_pcm_substream *sbstrm) +{ + struct snd_efw *efw = sbstrm->private_data; + return amdtp_stream_pcm_pointer(&efw->rx_stream); +} + +static const struct snd_pcm_ops pcm_capture_ops = { + .open = pcm_open, + .close = pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = pcm_capture_hw_params, + .hw_free = pcm_capture_hw_free, + .prepare = pcm_capture_prepare, + .trigger = pcm_capture_trigger, + .pointer = pcm_capture_pointer, + .page = snd_pcm_lib_get_vmalloc_page, +}; + +static const struct snd_pcm_ops pcm_playback_ops = { + .open = pcm_open, + .close = pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = pcm_playback_hw_params, + .hw_free = pcm_playback_hw_free, + .prepare = pcm_playback_prepare, + .trigger = pcm_playback_trigger, + .pointer = pcm_playback_pointer, + .page = snd_pcm_lib_get_vmalloc_page, + .mmap = snd_pcm_lib_mmap_vmalloc, +}; + +int snd_efw_create_pcm_devices(struct snd_efw *efw) +{ + struct snd_pcm *pcm; + int err; + + err = snd_pcm_new(efw->card, efw->card->driver, 0, 1, 1, &pcm); + if (err < 0) + goto end; + + pcm->private_data = efw; + snprintf(pcm->name, sizeof(pcm->name), "%s PCM", efw->card->shortname); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_playback_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &pcm_capture_ops); +end: + return err; +} + diff --git a/kernel/sound/firewire/fireworks/fireworks_proc.c b/kernel/sound/firewire/fireworks/fireworks_proc.c new file mode 100644 index 000000000..0639dcb13 --- /dev/null +++ b/kernel/sound/firewire/fireworks/fireworks_proc.c @@ -0,0 +1,232 @@ +/* + * fireworks_proc.c - a part of driver for Fireworks based devices + * + * Copyright (c) 2009-2010 Clemens Ladisch + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./fireworks.h" + +static inline const char* +get_phys_name(struct snd_efw_phys_grp *grp, bool input) +{ + const char *const ch_type[] = { + "Analog", "S/PDIF", "ADAT", "S/PDIF or ADAT", "Mirroring", + "Headphones", "I2S", "Guitar", "Pirzo Guitar", "Guitar String", + }; + + if (grp->type < ARRAY_SIZE(ch_type)) + return ch_type[grp->type]; + else if (input) + return "Input"; + else + return "Output"; +} + +static void +proc_read_hwinfo(struct snd_info_entry *entry, struct snd_info_buffer *buffer) +{ + struct snd_efw *efw = entry->private_data; + unsigned short i; + struct snd_efw_hwinfo *hwinfo; + + hwinfo = kmalloc(sizeof(struct snd_efw_hwinfo), GFP_KERNEL); + if (hwinfo == NULL) + return; + + if (snd_efw_command_get_hwinfo(efw, hwinfo) < 0) + goto end; + + snd_iprintf(buffer, "guid_hi: 0x%X\n", hwinfo->guid_hi); + snd_iprintf(buffer, "guid_lo: 0x%X\n", hwinfo->guid_lo); + snd_iprintf(buffer, "type: 0x%X\n", hwinfo->type); + snd_iprintf(buffer, "version: 0x%X\n", hwinfo->version); + snd_iprintf(buffer, "vendor_name: %s\n", hwinfo->vendor_name); + snd_iprintf(buffer, "model_name: %s\n", hwinfo->model_name); + + snd_iprintf(buffer, "dsp_version: 0x%X\n", hwinfo->dsp_version); + snd_iprintf(buffer, "arm_version: 0x%X\n", hwinfo->arm_version); + snd_iprintf(buffer, "fpga_version: 0x%X\n", hwinfo->fpga_version); + + snd_iprintf(buffer, "flags: 0x%X\n", hwinfo->flags); + + snd_iprintf(buffer, "max_sample_rate: 0x%X\n", hwinfo->max_sample_rate); + snd_iprintf(buffer, "min_sample_rate: 0x%X\n", hwinfo->min_sample_rate); + snd_iprintf(buffer, "supported_clock: 0x%X\n", + hwinfo->supported_clocks); + + snd_iprintf(buffer, "phys out: 0x%X\n", hwinfo->phys_out); + snd_iprintf(buffer, "phys in: 0x%X\n", hwinfo->phys_in); + + snd_iprintf(buffer, "phys in grps: 0x%X\n", + hwinfo->phys_in_grp_count); + for (i = 0; i < hwinfo->phys_in_grp_count; i++) { + snd_iprintf(buffer, + "phys in grp[%d]: type 0x%X, count 0x%X\n", + i, hwinfo->phys_out_grps[i].type, + hwinfo->phys_out_grps[i].count); + } + + snd_iprintf(buffer, "phys out grps: 0x%X\n", + hwinfo->phys_out_grp_count); + for (i = 0; i < hwinfo->phys_out_grp_count; i++) { + snd_iprintf(buffer, + "phys out grps[%d]: type 0x%X, count 0x%X\n", + i, hwinfo->phys_out_grps[i].type, + hwinfo->phys_out_grps[i].count); + } + + snd_iprintf(buffer, "amdtp rx pcm channels 1x: 0x%X\n", + hwinfo->amdtp_rx_pcm_channels); + snd_iprintf(buffer, "amdtp tx pcm channels 1x: 0x%X\n", + hwinfo->amdtp_tx_pcm_channels); + snd_iprintf(buffer, "amdtp rx pcm channels 2x: 0x%X\n", + hwinfo->amdtp_rx_pcm_channels_2x); + snd_iprintf(buffer, "amdtp tx pcm channels 2x: 0x%X\n", + hwinfo->amdtp_tx_pcm_channels_2x); + snd_iprintf(buffer, "amdtp rx pcm channels 4x: 0x%X\n", + hwinfo->amdtp_rx_pcm_channels_4x); + snd_iprintf(buffer, "amdtp tx pcm channels 4x: 0x%X\n", + hwinfo->amdtp_tx_pcm_channels_4x); + + snd_iprintf(buffer, "midi out ports: 0x%X\n", hwinfo->midi_out_ports); + snd_iprintf(buffer, "midi in ports: 0x%X\n", hwinfo->midi_in_ports); + + snd_iprintf(buffer, "mixer playback channels: 0x%X\n", + hwinfo->mixer_playback_channels); + snd_iprintf(buffer, "mixer capture channels: 0x%X\n", + hwinfo->mixer_capture_channels); +end: + kfree(hwinfo); +} + +static void +proc_read_clock(struct snd_info_entry *entry, struct snd_info_buffer *buffer) +{ + struct snd_efw *efw = entry->private_data; + enum snd_efw_clock_source clock_source; + unsigned int sampling_rate; + + if (snd_efw_command_get_clock_source(efw, &clock_source) < 0) + return; + + if (snd_efw_command_get_sampling_rate(efw, &sampling_rate) < 0) + return; + + snd_iprintf(buffer, "Clock Source: %d\n", clock_source); + snd_iprintf(buffer, "Sampling Rate: %d\n", sampling_rate); +} + +/* + * NOTE: + * dB = 20 * log10(linear / 0x01000000) + * -144.0 dB when linear is 0 + */ +static void +proc_read_phys_meters(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_efw *efw = entry->private_data; + struct snd_efw_phys_meters *meters; + unsigned int g, c, m, max, size; + const char *name; + u32 *linear; + int err; + + size = sizeof(struct snd_efw_phys_meters) + + (efw->phys_in + efw->phys_out) * sizeof(u32); + meters = kzalloc(size, GFP_KERNEL); + if (meters == NULL) + return; + + err = snd_efw_command_get_phys_meters(efw, meters, size); + if (err < 0) + goto end; + + snd_iprintf(buffer, "Physical Meters:\n"); + + m = 0; + max = min(efw->phys_out, meters->out_meters); + linear = meters->values; + snd_iprintf(buffer, " %d Outputs:\n", max); + for (g = 0; g < efw->phys_out_grp_count; g++) { + name = get_phys_name(&efw->phys_out_grps[g], false); + for (c = 0; c < efw->phys_out_grps[g].count; c++) { + if (m < max) + snd_iprintf(buffer, "\t%s [%d]: %d\n", + name, c, linear[m++]); + } + } + + m = 0; + max = min(efw->phys_in, meters->in_meters); + linear = meters->values + meters->out_meters; + snd_iprintf(buffer, " %d Inputs:\n", max); + for (g = 0; g < efw->phys_in_grp_count; g++) { + name = get_phys_name(&efw->phys_in_grps[g], true); + for (c = 0; c < efw->phys_in_grps[g].count; c++) + if (m < max) + snd_iprintf(buffer, "\t%s [%d]: %d\n", + name, c, linear[m++]); + } +end: + kfree(meters); +} + +static void +proc_read_queues_state(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_efw *efw = entry->private_data; + unsigned int consumed; + + if (efw->pull_ptr > efw->push_ptr) + consumed = snd_efw_resp_buf_size - + (unsigned int)(efw->pull_ptr - efw->push_ptr); + else + consumed = (unsigned int)(efw->push_ptr - efw->pull_ptr); + + snd_iprintf(buffer, "%d %d/%d\n", + efw->resp_queues, consumed, snd_efw_resp_buf_size); +} + +static void +add_node(struct snd_efw *efw, struct snd_info_entry *root, const char *name, + void (*op)(struct snd_info_entry *e, struct snd_info_buffer *b)) +{ + struct snd_info_entry *entry; + + entry = snd_info_create_card_entry(efw->card, name, root); + if (entry == NULL) + return; + + snd_info_set_text_ops(entry, efw, op); + if (snd_info_register(entry) < 0) + snd_info_free_entry(entry); +} + +void snd_efw_proc_init(struct snd_efw *efw) +{ + struct snd_info_entry *root; + + /* + * All nodes are automatically removed at snd_card_disconnect(), + * by following to link list. + */ + root = snd_info_create_card_entry(efw->card, "firewire", + efw->card->proc_root); + if (root == NULL) + return; + root->mode = S_IFDIR | S_IRUGO | S_IXUGO; + if (snd_info_register(root) < 0) { + snd_info_free_entry(root); + return; + } + + add_node(efw, root, "clock", proc_read_clock); + add_node(efw, root, "firmware", proc_read_hwinfo); + add_node(efw, root, "meters", proc_read_phys_meters); + add_node(efw, root, "queues", proc_read_queues_state); +} diff --git a/kernel/sound/firewire/fireworks/fireworks_stream.c b/kernel/sound/firewire/fireworks/fireworks_stream.c new file mode 100644 index 000000000..c55db1bdd --- /dev/null +++ b/kernel/sound/firewire/fireworks/fireworks_stream.c @@ -0,0 +1,368 @@ +/* + * fireworks_stream.c - a part of driver for Fireworks based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ +#include "./fireworks.h" + +#define CALLBACK_TIMEOUT 100 + +static int +init_stream(struct snd_efw *efw, struct amdtp_stream *stream) +{ + struct cmp_connection *conn; + enum cmp_direction c_dir; + enum amdtp_stream_direction s_dir; + int err; + + if (stream == &efw->tx_stream) { + conn = &efw->out_conn; + c_dir = CMP_OUTPUT; + s_dir = AMDTP_IN_STREAM; + } else { + conn = &efw->in_conn; + c_dir = CMP_INPUT; + s_dir = AMDTP_OUT_STREAM; + } + + err = cmp_connection_init(conn, efw->unit, c_dir, 0); + if (err < 0) + goto end; + + err = amdtp_stream_init(stream, efw->unit, s_dir, CIP_BLOCKING); + if (err < 0) { + amdtp_stream_destroy(stream); + cmp_connection_destroy(conn); + } +end: + return err; +} + +static void +stop_stream(struct snd_efw *efw, struct amdtp_stream *stream) +{ + amdtp_stream_pcm_abort(stream); + amdtp_stream_stop(stream); + + if (stream == &efw->tx_stream) + cmp_connection_break(&efw->out_conn); + else + cmp_connection_break(&efw->in_conn); +} + +static int +start_stream(struct snd_efw *efw, struct amdtp_stream *stream, + unsigned int sampling_rate) +{ + struct cmp_connection *conn; + unsigned int mode, pcm_channels, midi_ports; + int err; + + err = snd_efw_get_multiplier_mode(sampling_rate, &mode); + if (err < 0) + goto end; + if (stream == &efw->tx_stream) { + conn = &efw->out_conn; + pcm_channels = efw->pcm_capture_channels[mode]; + midi_ports = efw->midi_out_ports; + } else { + conn = &efw->in_conn; + pcm_channels = efw->pcm_playback_channels[mode]; + midi_ports = efw->midi_in_ports; + } + + amdtp_stream_set_parameters(stream, sampling_rate, + pcm_channels, midi_ports); + + /* establish connection via CMP */ + err = cmp_connection_establish(conn, + amdtp_stream_get_max_payload(stream)); + if (err < 0) + goto end; + + /* start amdtp stream */ + err = amdtp_stream_start(stream, + conn->resources.channel, + conn->speed); + if (err < 0) { + stop_stream(efw, stream); + goto end; + } + + /* wait first callback */ + if (!amdtp_stream_wait_callback(stream, CALLBACK_TIMEOUT)) { + stop_stream(efw, stream); + err = -ETIMEDOUT; + } +end: + return err; +} + +/* + * This function should be called before starting the stream or after stopping + * the streams. + */ +static void +destroy_stream(struct snd_efw *efw, struct amdtp_stream *stream) +{ + struct cmp_connection *conn; + + if (stream == &efw->tx_stream) + conn = &efw->out_conn; + else + conn = &efw->in_conn; + + amdtp_stream_destroy(stream); + cmp_connection_destroy(&efw->out_conn); +} + +static int +get_sync_mode(struct snd_efw *efw, enum cip_flags *sync_mode) +{ + enum snd_efw_clock_source clock_source; + int err; + + err = snd_efw_command_get_clock_source(efw, &clock_source); + if (err < 0) + return err; + + if (clock_source == SND_EFW_CLOCK_SOURCE_SYTMATCH) + return -ENOSYS; + + *sync_mode = CIP_SYNC_TO_DEVICE; + return 0; +} + +static int +check_connection_used_by_others(struct snd_efw *efw, struct amdtp_stream *s) +{ + struct cmp_connection *conn; + bool used; + int err; + + if (s == &efw->tx_stream) + conn = &efw->out_conn; + else + conn = &efw->in_conn; + + err = cmp_connection_check_used(conn, &used); + if ((err >= 0) && used && !amdtp_stream_running(s)) { + dev_err(&efw->unit->device, + "Connection established by others: %cPCR[%d]\n", + (conn->direction == CMP_OUTPUT) ? 'o' : 'i', + conn->pcr_index); + err = -EBUSY; + } + + return err; +} + +int snd_efw_stream_init_duplex(struct snd_efw *efw) +{ + int err; + + err = init_stream(efw, &efw->tx_stream); + if (err < 0) + goto end; + /* Fireworks transmits NODATA packets with TAG0. */ + efw->tx_stream.flags |= CIP_EMPTY_WITH_TAG0; + /* Fireworks has its own meaning for dbc. */ + efw->tx_stream.flags |= CIP_DBC_IS_END_EVENT; + /* Fireworks reset dbc at bus reset. */ + efw->tx_stream.flags |= CIP_SKIP_DBC_ZERO_CHECK; + /* AudioFire9 always reports wrong dbs. */ + if (efw->is_af9) + efw->tx_stream.flags |= CIP_WRONG_DBS; + /* Firmware version 5.5 reports fixed interval for dbc. */ + if (efw->firmware_version == 0x5050000) + efw->tx_stream.tx_dbc_interval = 8; + + err = init_stream(efw, &efw->rx_stream); + if (err < 0) { + destroy_stream(efw, &efw->tx_stream); + goto end; + } + + /* set IEC61883 compliant mode (actually not fully compliant...) */ + err = snd_efw_command_set_tx_mode(efw, SND_EFW_TRANSPORT_MODE_IEC61883); + if (err < 0) { + destroy_stream(efw, &efw->tx_stream); + destroy_stream(efw, &efw->rx_stream); + } +end: + return err; +} + +int snd_efw_stream_start_duplex(struct snd_efw *efw, unsigned int rate) +{ + struct amdtp_stream *master, *slave; + atomic_t *slave_substreams; + enum cip_flags sync_mode; + unsigned int curr_rate; + int err = 0; + + mutex_lock(&efw->mutex); + + /* Need no substreams */ + if ((atomic_read(&efw->playback_substreams) == 0) && + (atomic_read(&efw->capture_substreams) == 0)) + goto end; + + err = get_sync_mode(efw, &sync_mode); + if (err < 0) + goto end; + if (sync_mode == CIP_SYNC_TO_DEVICE) { + master = &efw->tx_stream; + slave = &efw->rx_stream; + slave_substreams = &efw->playback_substreams; + } else { + master = &efw->rx_stream; + slave = &efw->tx_stream; + slave_substreams = &efw->capture_substreams; + } + + /* + * Considering JACK/FFADO streaming: + * TODO: This can be removed hwdep functionality becomes popular. + */ + err = check_connection_used_by_others(efw, master); + if (err < 0) + goto end; + + /* packet queueing error */ + if (amdtp_streaming_error(slave)) + stop_stream(efw, slave); + if (amdtp_streaming_error(master)) + stop_stream(efw, master); + + /* stop streams if rate is different */ + err = snd_efw_command_get_sampling_rate(efw, &curr_rate); + if (err < 0) + goto end; + if (rate == 0) + rate = curr_rate; + if (rate != curr_rate) { + stop_stream(efw, slave); + stop_stream(efw, master); + } + + /* master should be always running */ + if (!amdtp_stream_running(master)) { + amdtp_stream_set_sync(sync_mode, master, slave); + efw->master = master; + + err = snd_efw_command_set_sampling_rate(efw, rate); + if (err < 0) + goto end; + + err = start_stream(efw, master, rate); + if (err < 0) { + dev_err(&efw->unit->device, + "fail to start AMDTP master stream:%d\n", err); + goto end; + } + } + + /* start slave if needed */ + if (atomic_read(slave_substreams) > 0 && !amdtp_stream_running(slave)) { + err = start_stream(efw, slave, rate); + if (err < 0) { + dev_err(&efw->unit->device, + "fail to start AMDTP slave stream:%d\n", err); + stop_stream(efw, master); + } + } +end: + mutex_unlock(&efw->mutex); + return err; +} + +void snd_efw_stream_stop_duplex(struct snd_efw *efw) +{ + struct amdtp_stream *master, *slave; + atomic_t *master_substreams, *slave_substreams; + + if (efw->master == &efw->rx_stream) { + slave = &efw->tx_stream; + master = &efw->rx_stream; + slave_substreams = &efw->capture_substreams; + master_substreams = &efw->playback_substreams; + } else { + slave = &efw->rx_stream; + master = &efw->tx_stream; + slave_substreams = &efw->playback_substreams; + master_substreams = &efw->capture_substreams; + } + + mutex_lock(&efw->mutex); + + if (atomic_read(slave_substreams) == 0) { + stop_stream(efw, slave); + + if (atomic_read(master_substreams) == 0) + stop_stream(efw, master); + } + + mutex_unlock(&efw->mutex); +} + +void snd_efw_stream_update_duplex(struct snd_efw *efw) +{ + if ((cmp_connection_update(&efw->out_conn) < 0) || + (cmp_connection_update(&efw->in_conn) < 0)) { + mutex_lock(&efw->mutex); + stop_stream(efw, &efw->rx_stream); + stop_stream(efw, &efw->tx_stream); + mutex_unlock(&efw->mutex); + } else { + amdtp_stream_update(&efw->rx_stream); + amdtp_stream_update(&efw->tx_stream); + } +} + +void snd_efw_stream_destroy_duplex(struct snd_efw *efw) +{ + destroy_stream(efw, &efw->rx_stream); + destroy_stream(efw, &efw->tx_stream); +} + +void snd_efw_stream_lock_changed(struct snd_efw *efw) +{ + efw->dev_lock_changed = true; + wake_up(&efw->hwdep_wait); +} + +int snd_efw_stream_lock_try(struct snd_efw *efw) +{ + int err; + + spin_lock_irq(&efw->lock); + + /* user land lock this */ + if (efw->dev_lock_count < 0) { + err = -EBUSY; + goto end; + } + + /* this is the first time */ + if (efw->dev_lock_count++ == 0) + snd_efw_stream_lock_changed(efw); + err = 0; +end: + spin_unlock_irq(&efw->lock); + return err; +} + +void snd_efw_stream_lock_release(struct snd_efw *efw) +{ + spin_lock_irq(&efw->lock); + + if (WARN_ON(efw->dev_lock_count <= 0)) + goto end; + if (--efw->dev_lock_count == 0) + snd_efw_stream_lock_changed(efw); +end: + spin_unlock_irq(&efw->lock); +} diff --git a/kernel/sound/firewire/fireworks/fireworks_transaction.c b/kernel/sound/firewire/fireworks/fireworks_transaction.c new file mode 100644 index 000000000..f550808d1 --- /dev/null +++ b/kernel/sound/firewire/fireworks/fireworks_transaction.c @@ -0,0 +1,326 @@ +/* + * fireworks_transaction.c - a part of driver for Fireworks based devices + * + * Copyright (c) 2013-2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +/* + * Fireworks have its own transaction. The transaction can be delivered by AV/C + * Vendor Specific command frame or usual asynchronous transaction. At least, + * Windows driver and firmware version 5.5 or later don't use AV/C command. + * + * Transaction substance: + * At first, 6 data exist. Following to the data, parameters for each command + * exist. All of the parameters are 32 bit aligned to big endian. + * data[0]: Length of transaction substance + * data[1]: Transaction version + * data[2]: Sequence number. This is incremented by the device + * data[3]: Transaction category + * data[4]: Transaction command + * data[5]: Return value in response. + * data[6-]: Parameters + * + * Transaction address: + * command: 0xecc000000000 + * response: 0xecc080000000 (default) + * + * I note that the address for response can be changed by command. But this + * module uses the default address. + */ +#include "./fireworks.h" + +#define MEMORY_SPACE_EFW_COMMAND 0xecc000000000ULL +#define MEMORY_SPACE_EFW_RESPONSE 0xecc080000000ULL + +#define ERROR_RETRIES 3 +#define ERROR_DELAY_MS 5 +#define EFC_TIMEOUT_MS 125 + +static DEFINE_SPINLOCK(instances_lock); +static struct snd_efw *instances[SNDRV_CARDS] = SNDRV_DEFAULT_PTR; + +static DEFINE_SPINLOCK(transaction_queues_lock); +static LIST_HEAD(transaction_queues); + +enum transaction_queue_state { + STATE_PENDING, + STATE_BUS_RESET, + STATE_COMPLETE +}; + +struct transaction_queue { + struct list_head list; + struct fw_unit *unit; + void *buf; + unsigned int size; + u32 seqnum; + enum transaction_queue_state state; + wait_queue_head_t wait; +}; + +int snd_efw_transaction_cmd(struct fw_unit *unit, + const void *cmd, unsigned int size) +{ + return snd_fw_transaction(unit, TCODE_WRITE_BLOCK_REQUEST, + MEMORY_SPACE_EFW_COMMAND, + (void *)cmd, size, 0); +} + +int snd_efw_transaction_run(struct fw_unit *unit, + const void *cmd, unsigned int cmd_size, + void *resp, unsigned int resp_size) +{ + struct transaction_queue t; + unsigned int tries; + int ret; + + t.unit = unit; + t.buf = resp; + t.size = resp_size; + t.seqnum = be32_to_cpu(((struct snd_efw_transaction *)cmd)->seqnum) + 1; + t.state = STATE_PENDING; + init_waitqueue_head(&t.wait); + + spin_lock_irq(&transaction_queues_lock); + list_add_tail(&t.list, &transaction_queues); + spin_unlock_irq(&transaction_queues_lock); + + tries = 0; + do { + ret = snd_efw_transaction_cmd(t.unit, (void *)cmd, cmd_size); + if (ret < 0) + break; + + wait_event_timeout(t.wait, t.state != STATE_PENDING, + msecs_to_jiffies(EFC_TIMEOUT_MS)); + + if (t.state == STATE_COMPLETE) { + ret = t.size; + break; + } else if (t.state == STATE_BUS_RESET) { + msleep(ERROR_DELAY_MS); + } else if (++tries >= ERROR_RETRIES) { + dev_err(&t.unit->device, "EFW transaction timed out\n"); + ret = -EIO; + break; + } + } while (1); + + spin_lock_irq(&transaction_queues_lock); + list_del(&t.list); + spin_unlock_irq(&transaction_queues_lock); + + return ret; +} + +static void +copy_resp_to_buf(struct snd_efw *efw, void *data, size_t length, int *rcode) +{ + size_t capacity, till_end; + struct snd_efw_transaction *t; + + spin_lock_irq(&efw->lock); + + t = (struct snd_efw_transaction *)data; + length = min_t(size_t, be32_to_cpu(t->length) * sizeof(u32), length); + + if (efw->push_ptr < efw->pull_ptr) + capacity = (unsigned int)(efw->pull_ptr - efw->push_ptr); + else + capacity = snd_efw_resp_buf_size - + (unsigned int)(efw->push_ptr - efw->pull_ptr); + + /* confirm enough space for this response */ + if (capacity < length) { + *rcode = RCODE_CONFLICT_ERROR; + goto end; + } + + /* copy to ring buffer */ + while (length > 0) { + till_end = snd_efw_resp_buf_size - + (unsigned int)(efw->push_ptr - efw->resp_buf); + till_end = min_t(unsigned int, length, till_end); + + memcpy(efw->push_ptr, data, till_end); + + efw->push_ptr += till_end; + if (efw->push_ptr >= efw->resp_buf + snd_efw_resp_buf_size) + efw->push_ptr -= snd_efw_resp_buf_size; + + length -= till_end; + data += till_end; + } + + /* for hwdep */ + efw->resp_queues++; + wake_up(&efw->hwdep_wait); + + *rcode = RCODE_COMPLETE; +end: + spin_unlock_irq(&efw->lock); +} + +static void +handle_resp_for_user(struct fw_card *card, int generation, int source, + void *data, size_t length, int *rcode) +{ + struct fw_device *device; + struct snd_efw *efw; + unsigned int i; + + spin_lock_irq(&instances_lock); + + for (i = 0; i < SNDRV_CARDS; i++) { + efw = instances[i]; + if (efw == NULL) + continue; + device = fw_parent_device(efw->unit); + if ((device->card != card) || + (device->generation != generation)) + continue; + smp_rmb(); /* node id vs. generation */ + if (device->node_id != source) + continue; + + break; + } + if (i == SNDRV_CARDS) + goto end; + + copy_resp_to_buf(efw, data, length, rcode); +end: + spin_unlock_irq(&instances_lock); +} + +static void +handle_resp_for_kernel(struct fw_card *card, int generation, int source, + void *data, size_t length, int *rcode, u32 seqnum) +{ + struct fw_device *device; + struct transaction_queue *t; + unsigned long flags; + + spin_lock_irqsave(&transaction_queues_lock, flags); + list_for_each_entry(t, &transaction_queues, list) { + device = fw_parent_device(t->unit); + if ((device->card != card) || + (device->generation != generation)) + continue; + smp_rmb(); /* node_id vs. generation */ + if (device->node_id != source) + continue; + + if ((t->state == STATE_PENDING) && (t->seqnum == seqnum)) { + t->state = STATE_COMPLETE; + t->size = min_t(unsigned int, length, t->size); + memcpy(t->buf, data, t->size); + wake_up(&t->wait); + *rcode = RCODE_COMPLETE; + } + } + spin_unlock_irqrestore(&transaction_queues_lock, flags); +} + +static void +efw_response(struct fw_card *card, struct fw_request *request, + int tcode, int destination, int source, + int generation, unsigned long long offset, + void *data, size_t length, void *callback_data) +{ + int rcode, dummy; + u32 seqnum; + + rcode = RCODE_TYPE_ERROR; + if (length < sizeof(struct snd_efw_transaction)) { + rcode = RCODE_DATA_ERROR; + goto end; + } else if (offset != MEMORY_SPACE_EFW_RESPONSE) { + rcode = RCODE_ADDRESS_ERROR; + goto end; + } + + seqnum = be32_to_cpu(((struct snd_efw_transaction *)data)->seqnum); + if (seqnum > SND_EFW_TRANSACTION_USER_SEQNUM_MAX + 1) { + handle_resp_for_kernel(card, generation, source, + data, length, &rcode, seqnum); + if (snd_efw_resp_buf_debug) + handle_resp_for_user(card, generation, source, + data, length, &dummy); + } else { + handle_resp_for_user(card, generation, source, + data, length, &rcode); + } +end: + fw_send_response(card, request, rcode); +} + +void snd_efw_transaction_add_instance(struct snd_efw *efw) +{ + unsigned int i; + + spin_lock_irq(&instances_lock); + + for (i = 0; i < SNDRV_CARDS; i++) { + if (instances[i] != NULL) + continue; + instances[i] = efw; + break; + } + + spin_unlock_irq(&instances_lock); +} + +void snd_efw_transaction_remove_instance(struct snd_efw *efw) +{ + unsigned int i; + + spin_lock_irq(&instances_lock); + + for (i = 0; i < SNDRV_CARDS; i++) { + if (instances[i] != efw) + continue; + instances[i] = NULL; + } + + spin_unlock_irq(&instances_lock); +} + +void snd_efw_transaction_bus_reset(struct fw_unit *unit) +{ + struct transaction_queue *t; + + spin_lock_irq(&transaction_queues_lock); + list_for_each_entry(t, &transaction_queues, list) { + if ((t->unit == unit) && + (t->state == STATE_PENDING)) { + t->state = STATE_BUS_RESET; + wake_up(&t->wait); + } + } + spin_unlock_irq(&transaction_queues_lock); +} + +static struct fw_address_handler resp_register_handler = { + .length = SND_EFW_RESPONSE_MAXIMUM_BYTES, + .address_callback = efw_response +}; + +int snd_efw_transaction_register(void) +{ + static const struct fw_address_region resp_register_region = { + .start = MEMORY_SPACE_EFW_RESPONSE, + .end = MEMORY_SPACE_EFW_RESPONSE + + SND_EFW_RESPONSE_MAXIMUM_BYTES + }; + return fw_core_add_address_handler(&resp_register_handler, + &resp_register_region); +} + +void snd_efw_transaction_unregister(void) +{ + WARN_ON(!list_empty(&transaction_queues)); + fw_core_remove_address_handler(&resp_register_handler); +} diff --git a/kernel/sound/firewire/isight.c b/kernel/sound/firewire/isight.c new file mode 100644 index 000000000..48d6dca47 --- /dev/null +++ b/kernel/sound/firewire/isight.c @@ -0,0 +1,742 @@ +/* + * Apple iSight audio driver + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include <asm/byteorder.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/firewire-constants.h> +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/mutex.h> +#include <linux/string.h> +#include <sound/control.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/tlv.h> +#include "lib.h" +#include "iso-resources.h" +#include "packets-buffer.h" + +#define OUI_APPLE 0x000a27 +#define MODEL_APPLE_ISIGHT 0x000008 +#define SW_ISIGHT_AUDIO 0x000010 + +#define REG_AUDIO_ENABLE 0x000 +#define AUDIO_ENABLE 0x80000000 +#define REG_DEF_AUDIO_GAIN 0x204 +#define REG_GAIN_RAW_START 0x210 +#define REG_GAIN_RAW_END 0x214 +#define REG_GAIN_DB_START 0x218 +#define REG_GAIN_DB_END 0x21c +#define REG_SAMPLE_RATE_INQUIRY 0x280 +#define REG_ISO_TX_CONFIG 0x300 +#define SPEED_SHIFT 16 +#define REG_SAMPLE_RATE 0x400 +#define RATE_48000 0x80000000 +#define REG_GAIN 0x500 +#define REG_MUTE 0x504 + +#define MAX_FRAMES_PER_PACKET 475 + +#define QUEUE_LENGTH 20 + +struct isight { + struct snd_card *card; + struct fw_unit *unit; + struct fw_device *device; + u64 audio_base; + struct snd_pcm_substream *pcm; + struct mutex mutex; + struct iso_packets_buffer buffer; + struct fw_iso_resources resources; + struct fw_iso_context *context; + bool pcm_active; + bool pcm_running; + bool first_packet; + int packet_index; + u32 total_samples; + unsigned int buffer_pointer; + unsigned int period_counter; + s32 gain_min, gain_max; + unsigned int gain_tlv[4]; +}; + +struct audio_payload { + __be32 sample_count; + __be32 signature; + __be32 sample_total; + __be32 reserved; + __be16 samples[2 * MAX_FRAMES_PER_PACKET]; +}; + +MODULE_DESCRIPTION("iSight audio driver"); +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_LICENSE("GPL v2"); + +static struct fw_iso_packet audio_packet = { + .payload_length = sizeof(struct audio_payload), + .interrupt = 1, + .header_length = 4, +}; + +static void isight_update_pointers(struct isight *isight, unsigned int count) +{ + struct snd_pcm_runtime *runtime = isight->pcm->runtime; + unsigned int ptr; + + smp_wmb(); /* update buffer data before buffer pointer */ + + ptr = isight->buffer_pointer; + ptr += count; + if (ptr >= runtime->buffer_size) + ptr -= runtime->buffer_size; + ACCESS_ONCE(isight->buffer_pointer) = ptr; + + isight->period_counter += count; + if (isight->period_counter >= runtime->period_size) { + isight->period_counter -= runtime->period_size; + snd_pcm_period_elapsed(isight->pcm); + } +} + +static void isight_samples(struct isight *isight, + const __be16 *samples, unsigned int count) +{ + struct snd_pcm_runtime *runtime; + unsigned int count1; + + if (!ACCESS_ONCE(isight->pcm_running)) + return; + + runtime = isight->pcm->runtime; + if (isight->buffer_pointer + count <= runtime->buffer_size) { + memcpy(runtime->dma_area + isight->buffer_pointer * 4, + samples, count * 4); + } else { + count1 = runtime->buffer_size - isight->buffer_pointer; + memcpy(runtime->dma_area + isight->buffer_pointer * 4, + samples, count1 * 4); + samples += count1 * 2; + memcpy(runtime->dma_area, samples, (count - count1) * 4); + } + + isight_update_pointers(isight, count); +} + +static void isight_pcm_abort(struct isight *isight) +{ + if (ACCESS_ONCE(isight->pcm_active)) + snd_pcm_stop_xrun(isight->pcm); +} + +static void isight_dropped_samples(struct isight *isight, unsigned int total) +{ + struct snd_pcm_runtime *runtime; + u32 dropped; + unsigned int count1; + + if (!ACCESS_ONCE(isight->pcm_running)) + return; + + runtime = isight->pcm->runtime; + dropped = total - isight->total_samples; + if (dropped < runtime->buffer_size) { + if (isight->buffer_pointer + dropped <= runtime->buffer_size) { + memset(runtime->dma_area + isight->buffer_pointer * 4, + 0, dropped * 4); + } else { + count1 = runtime->buffer_size - isight->buffer_pointer; + memset(runtime->dma_area + isight->buffer_pointer * 4, + 0, count1 * 4); + memset(runtime->dma_area, 0, (dropped - count1) * 4); + } + isight_update_pointers(isight, dropped); + } else { + isight_pcm_abort(isight); + } +} + +static void isight_packet(struct fw_iso_context *context, u32 cycle, + size_t header_length, void *header, void *data) +{ + struct isight *isight = data; + const struct audio_payload *payload; + unsigned int index, length, count, total; + int err; + + if (isight->packet_index < 0) + return; + index = isight->packet_index; + payload = isight->buffer.packets[index].buffer; + length = be32_to_cpup(header) >> 16; + + if (likely(length >= 16 && + payload->signature == cpu_to_be32(0x73676874/*"sght"*/))) { + count = be32_to_cpu(payload->sample_count); + if (likely(count <= (length - 16) / 4)) { + total = be32_to_cpu(payload->sample_total); + if (unlikely(total != isight->total_samples)) { + if (!isight->first_packet) + isight_dropped_samples(isight, total); + isight->first_packet = false; + isight->total_samples = total; + } + + isight_samples(isight, payload->samples, count); + isight->total_samples += count; + } + } + + err = fw_iso_context_queue(isight->context, &audio_packet, + &isight->buffer.iso_buffer, + isight->buffer.packets[index].offset); + if (err < 0) { + dev_err(&isight->unit->device, "queueing error: %d\n", err); + isight_pcm_abort(isight); + isight->packet_index = -1; + return; + } + fw_iso_context_queue_flush(isight->context); + + if (++index >= QUEUE_LENGTH) + index = 0; + isight->packet_index = index; +} + +static int isight_connect(struct isight *isight) +{ + int ch, err; + __be32 value; + +retry_after_bus_reset: + ch = fw_iso_resources_allocate(&isight->resources, + sizeof(struct audio_payload), + isight->device->max_speed); + if (ch < 0) { + err = ch; + goto error; + } + + value = cpu_to_be32(ch | (isight->device->max_speed << SPEED_SHIFT)); + err = snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST, + isight->audio_base + REG_ISO_TX_CONFIG, + &value, 4, FW_FIXED_GENERATION | + isight->resources.generation); + if (err == -EAGAIN) { + fw_iso_resources_free(&isight->resources); + goto retry_after_bus_reset; + } else if (err < 0) { + goto err_resources; + } + + return 0; + +err_resources: + fw_iso_resources_free(&isight->resources); +error: + return err; +} + +static int isight_open(struct snd_pcm_substream *substream) +{ + static const struct snd_pcm_hardware hardware = { + .info = SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_BLOCK_TRANSFER, + .formats = SNDRV_PCM_FMTBIT_S16_BE, + .rates = SNDRV_PCM_RATE_48000, + .rate_min = 48000, + .rate_max = 48000, + .channels_min = 2, + .channels_max = 2, + .buffer_bytes_max = 4 * 1024 * 1024, + .period_bytes_min = MAX_FRAMES_PER_PACKET * 4, + .period_bytes_max = 1024 * 1024, + .periods_min = 2, + .periods_max = UINT_MAX, + }; + struct isight *isight = substream->private_data; + + substream->runtime->hw = hardware; + + return iso_packets_buffer_init(&isight->buffer, isight->unit, + QUEUE_LENGTH, + sizeof(struct audio_payload), + DMA_FROM_DEVICE); +} + +static int isight_close(struct snd_pcm_substream *substream) +{ + struct isight *isight = substream->private_data; + + iso_packets_buffer_destroy(&isight->buffer, isight->unit); + + return 0; +} + +static int isight_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct isight *isight = substream->private_data; + int err; + + err = snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); + if (err < 0) + return err; + + ACCESS_ONCE(isight->pcm_active) = true; + + return 0; +} + +static int reg_read(struct isight *isight, int offset, __be32 *value) +{ + return snd_fw_transaction(isight->unit, TCODE_READ_QUADLET_REQUEST, + isight->audio_base + offset, value, 4, 0); +} + +static int reg_write(struct isight *isight, int offset, __be32 value) +{ + return snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST, + isight->audio_base + offset, &value, 4, 0); +} + +static void isight_stop_streaming(struct isight *isight) +{ + __be32 value; + + if (!isight->context) + return; + + fw_iso_context_stop(isight->context); + fw_iso_context_destroy(isight->context); + isight->context = NULL; + fw_iso_resources_free(&isight->resources); + value = 0; + snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST, + isight->audio_base + REG_AUDIO_ENABLE, + &value, 4, FW_QUIET); +} + +static int isight_hw_free(struct snd_pcm_substream *substream) +{ + struct isight *isight = substream->private_data; + + ACCESS_ONCE(isight->pcm_active) = false; + + mutex_lock(&isight->mutex); + isight_stop_streaming(isight); + mutex_unlock(&isight->mutex); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} + +static int isight_start_streaming(struct isight *isight) +{ + unsigned int i; + int err; + + if (isight->context) { + if (isight->packet_index < 0) + isight_stop_streaming(isight); + else + return 0; + } + + err = reg_write(isight, REG_SAMPLE_RATE, cpu_to_be32(RATE_48000)); + if (err < 0) + goto error; + + err = isight_connect(isight); + if (err < 0) + goto error; + + err = reg_write(isight, REG_AUDIO_ENABLE, cpu_to_be32(AUDIO_ENABLE)); + if (err < 0) + goto err_resources; + + isight->context = fw_iso_context_create(isight->device->card, + FW_ISO_CONTEXT_RECEIVE, + isight->resources.channel, + isight->device->max_speed, + 4, isight_packet, isight); + if (IS_ERR(isight->context)) { + err = PTR_ERR(isight->context); + isight->context = NULL; + goto err_resources; + } + + for (i = 0; i < QUEUE_LENGTH; ++i) { + err = fw_iso_context_queue(isight->context, &audio_packet, + &isight->buffer.iso_buffer, + isight->buffer.packets[i].offset); + if (err < 0) + goto err_context; + } + + isight->first_packet = true; + isight->packet_index = 0; + + err = fw_iso_context_start(isight->context, -1, 0, + FW_ISO_CONTEXT_MATCH_ALL_TAGS/*?*/); + if (err < 0) + goto err_context; + + return 0; + +err_context: + fw_iso_context_destroy(isight->context); + isight->context = NULL; +err_resources: + fw_iso_resources_free(&isight->resources); + reg_write(isight, REG_AUDIO_ENABLE, 0); +error: + return err; +} + +static int isight_prepare(struct snd_pcm_substream *substream) +{ + struct isight *isight = substream->private_data; + int err; + + isight->buffer_pointer = 0; + isight->period_counter = 0; + + mutex_lock(&isight->mutex); + err = isight_start_streaming(isight); + mutex_unlock(&isight->mutex); + + return err; +} + +static int isight_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct isight *isight = substream->private_data; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + ACCESS_ONCE(isight->pcm_running) = true; + break; + case SNDRV_PCM_TRIGGER_STOP: + ACCESS_ONCE(isight->pcm_running) = false; + break; + default: + return -EINVAL; + } + return 0; +} + +static snd_pcm_uframes_t isight_pointer(struct snd_pcm_substream *substream) +{ + struct isight *isight = substream->private_data; + + return ACCESS_ONCE(isight->buffer_pointer); +} + +static int isight_create_pcm(struct isight *isight) +{ + static struct snd_pcm_ops ops = { + .open = isight_open, + .close = isight_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = isight_hw_params, + .hw_free = isight_hw_free, + .prepare = isight_prepare, + .trigger = isight_trigger, + .pointer = isight_pointer, + .page = snd_pcm_lib_get_vmalloc_page, + .mmap = snd_pcm_lib_mmap_vmalloc, + }; + struct snd_pcm *pcm; + int err; + + err = snd_pcm_new(isight->card, "iSight", 0, 0, 1, &pcm); + if (err < 0) + return err; + pcm->private_data = isight; + strcpy(pcm->name, "iSight"); + isight->pcm = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; + isight->pcm->ops = &ops; + + return 0; +} + +static int isight_gain_info(struct snd_kcontrol *ctl, + struct snd_ctl_elem_info *info) +{ + struct isight *isight = ctl->private_data; + + info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + info->count = 1; + info->value.integer.min = isight->gain_min; + info->value.integer.max = isight->gain_max; + + return 0; +} + +static int isight_gain_get(struct snd_kcontrol *ctl, + struct snd_ctl_elem_value *value) +{ + struct isight *isight = ctl->private_data; + __be32 gain; + int err; + + err = reg_read(isight, REG_GAIN, &gain); + if (err < 0) + return err; + + value->value.integer.value[0] = (s32)be32_to_cpu(gain); + + return 0; +} + +static int isight_gain_put(struct snd_kcontrol *ctl, + struct snd_ctl_elem_value *value) +{ + struct isight *isight = ctl->private_data; + + if (value->value.integer.value[0] < isight->gain_min || + value->value.integer.value[0] > isight->gain_max) + return -EINVAL; + + return reg_write(isight, REG_GAIN, + cpu_to_be32(value->value.integer.value[0])); +} + +static int isight_mute_get(struct snd_kcontrol *ctl, + struct snd_ctl_elem_value *value) +{ + struct isight *isight = ctl->private_data; + __be32 mute; + int err; + + err = reg_read(isight, REG_MUTE, &mute); + if (err < 0) + return err; + + value->value.integer.value[0] = !mute; + + return 0; +} + +static int isight_mute_put(struct snd_kcontrol *ctl, + struct snd_ctl_elem_value *value) +{ + struct isight *isight = ctl->private_data; + + return reg_write(isight, REG_MUTE, + (__force __be32)!value->value.integer.value[0]); +} + +static int isight_create_mixer(struct isight *isight) +{ + static const struct snd_kcontrol_new gain_control = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Mic Capture Volume", + .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ, + .info = isight_gain_info, + .get = isight_gain_get, + .put = isight_gain_put, + }; + static const struct snd_kcontrol_new mute_control = { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "Mic Capture Switch", + .info = snd_ctl_boolean_mono_info, + .get = isight_mute_get, + .put = isight_mute_put, + }; + __be32 value; + struct snd_kcontrol *ctl; + int err; + + err = reg_read(isight, REG_GAIN_RAW_START, &value); + if (err < 0) + return err; + isight->gain_min = be32_to_cpu(value); + + err = reg_read(isight, REG_GAIN_RAW_END, &value); + if (err < 0) + return err; + isight->gain_max = be32_to_cpu(value); + + isight->gain_tlv[0] = SNDRV_CTL_TLVT_DB_MINMAX; + isight->gain_tlv[1] = 2 * sizeof(unsigned int); + + err = reg_read(isight, REG_GAIN_DB_START, &value); + if (err < 0) + return err; + isight->gain_tlv[2] = (s32)be32_to_cpu(value) * 100; + + err = reg_read(isight, REG_GAIN_DB_END, &value); + if (err < 0) + return err; + isight->gain_tlv[3] = (s32)be32_to_cpu(value) * 100; + + ctl = snd_ctl_new1(&gain_control, isight); + if (ctl) + ctl->tlv.p = isight->gain_tlv; + err = snd_ctl_add(isight->card, ctl); + if (err < 0) + return err; + + err = snd_ctl_add(isight->card, snd_ctl_new1(&mute_control, isight)); + if (err < 0) + return err; + + return 0; +} + +static void isight_card_free(struct snd_card *card) +{ + struct isight *isight = card->private_data; + + fw_iso_resources_destroy(&isight->resources); + fw_unit_put(isight->unit); + mutex_destroy(&isight->mutex); +} + +static u64 get_unit_base(struct fw_unit *unit) +{ + struct fw_csr_iterator i; + int key, value; + + fw_csr_iterator_init(&i, unit->directory); + while (fw_csr_iterator_next(&i, &key, &value)) + if (key == CSR_OFFSET) + return CSR_REGISTER_BASE + value * 4; + return 0; +} + +static int isight_probe(struct fw_unit *unit, + const struct ieee1394_device_id *id) +{ + struct fw_device *fw_dev = fw_parent_device(unit); + struct snd_card *card; + struct isight *isight; + int err; + + err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, + sizeof(*isight), &card); + if (err < 0) + return err; + + isight = card->private_data; + isight->card = card; + mutex_init(&isight->mutex); + isight->unit = fw_unit_get(unit); + isight->device = fw_dev; + isight->audio_base = get_unit_base(unit); + if (!isight->audio_base) { + dev_err(&unit->device, "audio unit base not found\n"); + err = -ENXIO; + goto err_unit; + } + fw_iso_resources_init(&isight->resources, unit); + + card->private_free = isight_card_free; + + strcpy(card->driver, "iSight"); + strcpy(card->shortname, "Apple iSight"); + snprintf(card->longname, sizeof(card->longname), + "Apple iSight (GUID %08x%08x) at %s, S%d", + fw_dev->config_rom[3], fw_dev->config_rom[4], + dev_name(&unit->device), 100 << fw_dev->max_speed); + strcpy(card->mixername, "iSight"); + + err = isight_create_pcm(isight); + if (err < 0) + goto error; + + err = isight_create_mixer(isight); + if (err < 0) + goto error; + + err = snd_card_register(card); + if (err < 0) + goto error; + + dev_set_drvdata(&unit->device, isight); + + return 0; + +err_unit: + fw_unit_put(isight->unit); + mutex_destroy(&isight->mutex); +error: + snd_card_free(card); + return err; +} + +static void isight_bus_reset(struct fw_unit *unit) +{ + struct isight *isight = dev_get_drvdata(&unit->device); + + if (fw_iso_resources_update(&isight->resources) < 0) { + isight_pcm_abort(isight); + + mutex_lock(&isight->mutex); + isight_stop_streaming(isight); + mutex_unlock(&isight->mutex); + } +} + +static void isight_remove(struct fw_unit *unit) +{ + struct isight *isight = dev_get_drvdata(&unit->device); + + isight_pcm_abort(isight); + + snd_card_disconnect(isight->card); + + mutex_lock(&isight->mutex); + isight_stop_streaming(isight); + mutex_unlock(&isight->mutex); + + snd_card_free_when_closed(isight->card); +} + +static const struct ieee1394_device_id isight_id_table[] = { + { + .match_flags = IEEE1394_MATCH_SPECIFIER_ID | + IEEE1394_MATCH_VERSION, + .specifier_id = OUI_APPLE, + .version = SW_ISIGHT_AUDIO, + }, + { } +}; +MODULE_DEVICE_TABLE(ieee1394, isight_id_table); + +static struct fw_driver isight_driver = { + .driver = { + .owner = THIS_MODULE, + .name = KBUILD_MODNAME, + .bus = &fw_bus_type, + }, + .probe = isight_probe, + .update = isight_bus_reset, + .remove = isight_remove, + .id_table = isight_id_table, +}; + +static int __init alsa_isight_init(void) +{ + return driver_register(&isight_driver.driver); +} + +static void __exit alsa_isight_exit(void) +{ + driver_unregister(&isight_driver.driver); +} + +module_init(alsa_isight_init); +module_exit(alsa_isight_exit); diff --git a/kernel/sound/firewire/iso-resources.c b/kernel/sound/firewire/iso-resources.c new file mode 100644 index 000000000..f0e4d502d --- /dev/null +++ b/kernel/sound/firewire/iso-resources.c @@ -0,0 +1,231 @@ +/* + * isochronous resources helper functions + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/firewire-constants.h> +#include <linux/export.h> +#include <linux/jiffies.h> +#include <linux/mutex.h> +#include <linux/sched.h> +#include <linux/spinlock.h> +#include "iso-resources.h" + +/** + * fw_iso_resources_init - initializes a &struct fw_iso_resources + * @r: the resource manager to initialize + * @unit: the device unit for which the resources will be needed + * + * If the device does not support all channel numbers, change @r->channels_mask + * after calling this function. + */ +int fw_iso_resources_init(struct fw_iso_resources *r, struct fw_unit *unit) +{ + r->channels_mask = ~0uLL; + r->unit = unit; + mutex_init(&r->mutex); + r->allocated = false; + + return 0; +} +EXPORT_SYMBOL(fw_iso_resources_init); + +/** + * fw_iso_resources_destroy - destroy a resource manager + * @r: the resource manager that is no longer needed + */ +void fw_iso_resources_destroy(struct fw_iso_resources *r) +{ + WARN_ON(r->allocated); + mutex_destroy(&r->mutex); +} +EXPORT_SYMBOL(fw_iso_resources_destroy); + +static unsigned int packet_bandwidth(unsigned int max_payload_bytes, int speed) +{ + unsigned int bytes, s400_bytes; + + /* iso packets have three header quadlets and quadlet-aligned payload */ + bytes = 3 * 4 + ALIGN(max_payload_bytes, 4); + + /* convert to bandwidth units (quadlets at S1600 = bytes at S400) */ + if (speed <= SCODE_400) + s400_bytes = bytes * (1 << (SCODE_400 - speed)); + else + s400_bytes = DIV_ROUND_UP(bytes, 1 << (speed - SCODE_400)); + + return s400_bytes; +} + +static int current_bandwidth_overhead(struct fw_card *card) +{ + /* + * Under the usual pessimistic assumption (cable length 4.5 m), the + * isochronous overhead for N cables is 1.797 µs + N * 0.494 µs, or + * 88.3 + N * 24.3 in bandwidth units. + * + * The calculation below tries to deduce N from the current gap count. + * If the gap count has been optimized by measuring the actual packet + * transmission time, this derived overhead should be near the actual + * overhead as well. + */ + return card->gap_count < 63 ? card->gap_count * 97 / 10 + 89 : 512; +} + +static int wait_isoch_resource_delay_after_bus_reset(struct fw_card *card) +{ + for (;;) { + s64 delay = (card->reset_jiffies + HZ) - get_jiffies_64(); + if (delay <= 0) + return 0; + if (schedule_timeout_interruptible(delay) > 0) + return -ERESTARTSYS; + } +} + +/** + * fw_iso_resources_allocate - allocate isochronous channel and bandwidth + * @r: the resource manager + * @max_payload_bytes: the amount of data (including CIP headers) per packet + * @speed: the speed (e.g., SCODE_400) at which the packets will be sent + * + * This function allocates one isochronous channel and enough bandwidth for the + * specified packet size. + * + * Returns the channel number that the caller must use for streaming, or + * a negative error code. Due to potentionally long delays, this function is + * interruptible and can return -ERESTARTSYS. On success, the caller is + * responsible for calling fw_iso_resources_update() on bus resets, and + * fw_iso_resources_free() when the resources are not longer needed. + */ +int fw_iso_resources_allocate(struct fw_iso_resources *r, + unsigned int max_payload_bytes, int speed) +{ + struct fw_card *card = fw_parent_device(r->unit)->card; + int bandwidth, channel, err; + + if (WARN_ON(r->allocated)) + return -EBADFD; + + r->bandwidth = packet_bandwidth(max_payload_bytes, speed); + +retry_after_bus_reset: + spin_lock_irq(&card->lock); + r->generation = card->generation; + r->bandwidth_overhead = current_bandwidth_overhead(card); + spin_unlock_irq(&card->lock); + + err = wait_isoch_resource_delay_after_bus_reset(card); + if (err < 0) + return err; + + mutex_lock(&r->mutex); + + bandwidth = r->bandwidth + r->bandwidth_overhead; + fw_iso_resource_manage(card, r->generation, r->channels_mask, + &channel, &bandwidth, true); + if (channel == -EAGAIN) { + mutex_unlock(&r->mutex); + goto retry_after_bus_reset; + } + if (channel >= 0) { + r->channel = channel; + r->allocated = true; + } else { + if (channel == -EBUSY) + dev_err(&r->unit->device, + "isochronous resources exhausted\n"); + else + dev_err(&r->unit->device, + "isochronous resource allocation failed\n"); + } + + mutex_unlock(&r->mutex); + + return channel; +} +EXPORT_SYMBOL(fw_iso_resources_allocate); + +/** + * fw_iso_resources_update - update resource allocations after a bus reset + * @r: the resource manager + * + * This function must be called from the driver's .update handler to reallocate + * any resources that were allocated before the bus reset. It is safe to call + * this function if no resources are currently allocated. + * + * Returns a negative error code on failure. If this happens, the caller must + * stop streaming. + */ +int fw_iso_resources_update(struct fw_iso_resources *r) +{ + struct fw_card *card = fw_parent_device(r->unit)->card; + int bandwidth, channel; + + mutex_lock(&r->mutex); + + if (!r->allocated) { + mutex_unlock(&r->mutex); + return 0; + } + + spin_lock_irq(&card->lock); + r->generation = card->generation; + r->bandwidth_overhead = current_bandwidth_overhead(card); + spin_unlock_irq(&card->lock); + + bandwidth = r->bandwidth + r->bandwidth_overhead; + + fw_iso_resource_manage(card, r->generation, 1uLL << r->channel, + &channel, &bandwidth, true); + /* + * When another bus reset happens, pretend that the allocation + * succeeded; we will try again for the new generation later. + */ + if (channel < 0 && channel != -EAGAIN) { + r->allocated = false; + if (channel == -EBUSY) + dev_err(&r->unit->device, + "isochronous resources exhausted\n"); + else + dev_err(&r->unit->device, + "isochronous resource allocation failed\n"); + } + + mutex_unlock(&r->mutex); + + return channel; +} +EXPORT_SYMBOL(fw_iso_resources_update); + +/** + * fw_iso_resources_free - frees allocated resources + * @r: the resource manager + * + * This function deallocates the channel and bandwidth, if allocated. + */ +void fw_iso_resources_free(struct fw_iso_resources *r) +{ + struct fw_card *card = fw_parent_device(r->unit)->card; + int bandwidth, channel; + + mutex_lock(&r->mutex); + + if (r->allocated) { + bandwidth = r->bandwidth + r->bandwidth_overhead; + fw_iso_resource_manage(card, r->generation, 1uLL << r->channel, + &channel, &bandwidth, false); + if (channel < 0) + dev_err(&r->unit->device, + "isochronous resource deallocation failed\n"); + + r->allocated = false; + } + + mutex_unlock(&r->mutex); +} +EXPORT_SYMBOL(fw_iso_resources_free); diff --git a/kernel/sound/firewire/iso-resources.h b/kernel/sound/firewire/iso-resources.h new file mode 100644 index 000000000..5a9af7c61 --- /dev/null +++ b/kernel/sound/firewire/iso-resources.h @@ -0,0 +1,38 @@ +#ifndef SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED +#define SOUND_FIREWIRE_ISO_RESOURCES_H_INCLUDED + +#include <linux/mutex.h> +#include <linux/types.h> + +struct fw_unit; + +/** + * struct fw_iso_resources - manages channel/bandwidth allocation + * @channels_mask: if the device does not support all channel numbers, set this + * bit mask to something else than the default (all ones) + * + * This structure manages (de)allocation of isochronous resources (channel and + * bandwidth) for one isochronous stream. + */ +struct fw_iso_resources { + u64 channels_mask; + /* private: */ + struct fw_unit *unit; + struct mutex mutex; + unsigned int channel; + unsigned int bandwidth; /* in bandwidth units, without overhead */ + unsigned int bandwidth_overhead; + int generation; /* in which allocation is valid */ + bool allocated; +}; + +int fw_iso_resources_init(struct fw_iso_resources *r, + struct fw_unit *unit); +void fw_iso_resources_destroy(struct fw_iso_resources *r); + +int fw_iso_resources_allocate(struct fw_iso_resources *r, + unsigned int max_payload_bytes, int speed); +int fw_iso_resources_update(struct fw_iso_resources *r); +void fw_iso_resources_free(struct fw_iso_resources *r); + +#endif diff --git a/kernel/sound/firewire/lib.c b/kernel/sound/firewire/lib.c new file mode 100644 index 000000000..7409edba9 --- /dev/null +++ b/kernel/sound/firewire/lib.c @@ -0,0 +1,71 @@ +/* + * miscellaneous helper functions + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/module.h> +#include "lib.h" + +#define ERROR_RETRY_DELAY_MS 20 + +/** + * snd_fw_transaction - send a request and wait for its completion + * @unit: the driver's unit on the target device + * @tcode: the transaction code + * @offset: the address in the target's address space + * @buffer: input/output data + * @length: length of @buffer + * @flags: use %FW_FIXED_GENERATION and add the generation value to attempt the + * request only in that generation; use %FW_QUIET to suppress error + * messages + * + * Submits an asynchronous request to the target device, and waits for the + * response. The node ID and the current generation are derived from @unit. + * On a bus reset or an error, the transaction is retried a few times. + * Returns zero on success, or a negative error code. + */ +int snd_fw_transaction(struct fw_unit *unit, int tcode, + u64 offset, void *buffer, size_t length, + unsigned int flags) +{ + struct fw_device *device = fw_parent_device(unit); + int generation, rcode, tries = 0; + + generation = flags & FW_GENERATION_MASK; + for (;;) { + if (!(flags & FW_FIXED_GENERATION)) { + generation = device->generation; + smp_rmb(); /* node_id vs. generation */ + } + rcode = fw_run_transaction(device->card, tcode, + device->node_id, generation, + device->max_speed, offset, + buffer, length); + + if (rcode == RCODE_COMPLETE) + return 0; + + if (rcode == RCODE_GENERATION && (flags & FW_FIXED_GENERATION)) + return -EAGAIN; + + if (rcode_is_permanent_error(rcode) || ++tries >= 3) { + if (!(flags & FW_QUIET)) + dev_err(&unit->device, + "transaction failed: %s\n", + fw_rcode_string(rcode)); + return -EIO; + } + + msleep(ERROR_RETRY_DELAY_MS); + } +} +EXPORT_SYMBOL(snd_fw_transaction); + +MODULE_DESCRIPTION("FireWire audio helper functions"); +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_LICENSE("GPL v2"); diff --git a/kernel/sound/firewire/lib.h b/kernel/sound/firewire/lib.h new file mode 100644 index 000000000..02cfabc9c --- /dev/null +++ b/kernel/sound/firewire/lib.h @@ -0,0 +1,23 @@ +#ifndef SOUND_FIREWIRE_LIB_H_INCLUDED +#define SOUND_FIREWIRE_LIB_H_INCLUDED + +#include <linux/firewire-constants.h> +#include <linux/types.h> + +struct fw_unit; + +#define FW_GENERATION_MASK 0x00ff +#define FW_FIXED_GENERATION 0x0100 +#define FW_QUIET 0x0200 + +int snd_fw_transaction(struct fw_unit *unit, int tcode, + u64 offset, void *buffer, size_t length, + unsigned int flags); + +/* returns true if retrying the transaction would not make sense */ +static inline bool rcode_is_permanent_error(int rcode) +{ + return rcode == RCODE_TYPE_ERROR || rcode == RCODE_ADDRESS_ERROR; +} + +#endif diff --git a/kernel/sound/firewire/oxfw/Makefile b/kernel/sound/firewire/oxfw/Makefile new file mode 100644 index 000000000..a92685086 --- /dev/null +++ b/kernel/sound/firewire/oxfw/Makefile @@ -0,0 +1,3 @@ +snd-oxfw-objs := oxfw-command.o oxfw-stream.o oxfw-control.o oxfw-pcm.o \ + oxfw-proc.o oxfw-midi.o oxfw-hwdep.o oxfw.o +obj-m += snd-oxfw.o diff --git a/kernel/sound/firewire/oxfw/oxfw-command.c b/kernel/sound/firewire/oxfw/oxfw-command.c new file mode 100644 index 000000000..12ef3253b --- /dev/null +++ b/kernel/sound/firewire/oxfw/oxfw-command.c @@ -0,0 +1,153 @@ +/* + * oxfw_command.c - a part of driver for OXFW970/971 based devices + * + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "oxfw.h" + +int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir, + unsigned int pid, u8 *format, unsigned int len) +{ + u8 *buf; + int err; + + buf = kmalloc(len + 10, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + buf[0] = 0x00; /* CONTROL */ + buf[1] = 0xff; /* UNIT */ + buf[2] = 0xbf; /* EXTENDED STREAM FORMAT INFORMATION */ + buf[3] = 0xc0; /* SINGLE subfunction */ + buf[4] = dir; /* Plug Direction */ + buf[5] = 0x00; /* UNIT */ + buf[6] = 0x00; /* PCR (Isochronous Plug) */ + buf[7] = 0xff & pid; /* Plug ID */ + buf[8] = 0xff; /* Padding */ + buf[9] = 0xff; /* Support status in response */ + memcpy(buf + 10, format, len); + + /* do transaction and check buf[1-8] are the same against command */ + err = fcp_avc_transaction(unit, buf, len + 10, buf, len + 10, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | + BIT(6) | BIT(7) | BIT(8)); + if ((err > 0) && (err < len + 10)) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else + err = 0; + + kfree(buf); + + return err; +} + +int avc_stream_get_format(struct fw_unit *unit, + enum avc_general_plug_dir dir, unsigned int pid, + u8 *buf, unsigned int *len, unsigned int eid) +{ + unsigned int subfunc; + int err; + + if (eid == 0xff) + subfunc = 0xc0; /* SINGLE */ + else + subfunc = 0xc1; /* LIST */ + + buf[0] = 0x01; /* STATUS */ + buf[1] = 0xff; /* UNIT */ + buf[2] = 0xbf; /* EXTENDED STREAM FORMAT INFORMATION */ + buf[3] = subfunc; /* SINGLE or LIST */ + buf[4] = dir; /* Plug Direction */ + buf[5] = 0x00; /* Unit */ + buf[6] = 0x00; /* PCR (Isochronous Plug) */ + buf[7] = 0xff & pid; /* Plug ID */ + buf[8] = 0xff; /* Padding */ + buf[9] = 0xff; /* support status in response */ + buf[10] = 0xff & eid; /* entry ID for LIST subfunction */ + buf[11] = 0xff; /* padding */ + + /* do transaction and check buf[1-7] are the same against command */ + err = fcp_avc_transaction(unit, buf, 12, buf, *len, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | + BIT(6) | BIT(7)); + if ((err > 0) && (err < 10)) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + else if (buf[0] == 0x0a) /* REJECTED */ + err = -EINVAL; + else if (buf[0] == 0x0b) /* IN TRANSITION */ + err = -EAGAIN; + /* LIST subfunction has entry ID */ + else if ((subfunc == 0xc1) && (buf[10] != eid)) + err = -EIO; + if (err < 0) + goto end; + + /* keep just stream format information */ + if (subfunc == 0xc0) { + memmove(buf, buf + 10, err - 10); + *len = err - 10; + } else { + memmove(buf, buf + 11, err - 11); + *len = err - 11; + } + + err = 0; +end: + return err; +} + +int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate, + enum avc_general_plug_dir dir, + unsigned short pid) +{ + unsigned int sfc; + u8 *buf; + int err; + + for (sfc = 0; sfc < CIP_SFC_COUNT; sfc++) { + if (amdtp_rate_table[sfc] == rate) + break; + } + if (sfc == CIP_SFC_COUNT) + return -EINVAL; + + buf = kzalloc(8, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + buf[0] = 0x02; /* SPECIFIC INQUIRY */ + buf[1] = 0xff; /* UNIT */ + if (dir == AVC_GENERAL_PLUG_DIR_IN) + buf[2] = 0x19; /* INPUT PLUG SIGNAL FORMAT */ + else + buf[2] = 0x18; /* OUTPUT PLUG SIGNAL FORMAT */ + buf[3] = 0xff & pid; /* plug id */ + buf[4] = 0x90; /* EOH_1, Form_1, FMT. AM824 */ + buf[5] = 0x07 & sfc; /* FDF-hi. AM824, frequency */ + buf[6] = 0xff; /* FDF-mid. AM824, SYT hi (not used) */ + buf[7] = 0xff; /* FDF-low. AM824, SYT lo (not used) */ + + /* do transaction and check buf[1-5] are the same against command */ + err = fcp_avc_transaction(unit, buf, 8, buf, 8, + BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5)); + if ((err > 0) && (err < 8)) + err = -EIO; + else if (buf[0] == 0x08) /* NOT IMPLEMENTED */ + err = -ENOSYS; + if (err < 0) + goto end; + + err = 0; +end: + kfree(buf); + return err; +} diff --git a/kernel/sound/firewire/oxfw/oxfw-control.c b/kernel/sound/firewire/oxfw/oxfw-control.c new file mode 100644 index 000000000..02a1cb90f --- /dev/null +++ b/kernel/sound/firewire/oxfw/oxfw-control.c @@ -0,0 +1,283 @@ +/* + * oxfw_stream.c - a part of driver for OXFW970/971 based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "oxfw.h" + +enum control_action { CTL_READ, CTL_WRITE }; +enum control_attribute { + CTL_MIN = 0x02, + CTL_MAX = 0x03, + CTL_CURRENT = 0x10, +}; + +static int oxfw_mute_command(struct snd_oxfw *oxfw, bool *value, + enum control_action action) +{ + u8 *buf; + u8 response_ok; + int err; + + buf = kmalloc(11, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + if (action == CTL_READ) { + buf[0] = 0x01; /* AV/C, STATUS */ + response_ok = 0x0c; /* STABLE */ + } else { + buf[0] = 0x00; /* AV/C, CONTROL */ + response_ok = 0x09; /* ACCEPTED */ + } + buf[1] = 0x08; /* audio unit 0 */ + buf[2] = 0xb8; /* FUNCTION BLOCK */ + buf[3] = 0x81; /* function block type: feature */ + buf[4] = oxfw->device_info->mute_fb_id; /* function block ID */ + buf[5] = 0x10; /* control attribute: current */ + buf[6] = 0x02; /* selector length */ + buf[7] = 0x00; /* audio channel number */ + buf[8] = 0x01; /* control selector: mute */ + buf[9] = 0x01; /* control data length */ + if (action == CTL_READ) + buf[10] = 0xff; + else + buf[10] = *value ? 0x70 : 0x60; + + err = fcp_avc_transaction(oxfw->unit, buf, 11, buf, 11, 0x3fe); + if (err < 0) + goto error; + if (err < 11) { + dev_err(&oxfw->unit->device, "short FCP response\n"); + err = -EIO; + goto error; + } + if (buf[0] != response_ok) { + dev_err(&oxfw->unit->device, "mute command failed\n"); + err = -EIO; + goto error; + } + if (action == CTL_READ) + *value = buf[10] == 0x70; + + err = 0; + +error: + kfree(buf); + + return err; +} + +static int oxfw_volume_command(struct snd_oxfw *oxfw, s16 *value, + unsigned int channel, + enum control_attribute attribute, + enum control_action action) +{ + u8 *buf; + u8 response_ok; + int err; + + buf = kmalloc(12, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + if (action == CTL_READ) { + buf[0] = 0x01; /* AV/C, STATUS */ + response_ok = 0x0c; /* STABLE */ + } else { + buf[0] = 0x00; /* AV/C, CONTROL */ + response_ok = 0x09; /* ACCEPTED */ + } + buf[1] = 0x08; /* audio unit 0 */ + buf[2] = 0xb8; /* FUNCTION BLOCK */ + buf[3] = 0x81; /* function block type: feature */ + buf[4] = oxfw->device_info->volume_fb_id; /* function block ID */ + buf[5] = attribute; /* control attribute */ + buf[6] = 0x02; /* selector length */ + buf[7] = channel; /* audio channel number */ + buf[8] = 0x02; /* control selector: volume */ + buf[9] = 0x02; /* control data length */ + if (action == CTL_READ) { + buf[10] = 0xff; + buf[11] = 0xff; + } else { + buf[10] = *value >> 8; + buf[11] = *value; + } + + err = fcp_avc_transaction(oxfw->unit, buf, 12, buf, 12, 0x3fe); + if (err < 0) + goto error; + if (err < 12) { + dev_err(&oxfw->unit->device, "short FCP response\n"); + err = -EIO; + goto error; + } + if (buf[0] != response_ok) { + dev_err(&oxfw->unit->device, "volume command failed\n"); + err = -EIO; + goto error; + } + if (action == CTL_READ) + *value = (buf[10] << 8) | buf[11]; + + err = 0; + +error: + kfree(buf); + + return err; +} + +static int oxfw_mute_get(struct snd_kcontrol *control, + struct snd_ctl_elem_value *value) +{ + struct snd_oxfw *oxfw = control->private_data; + + value->value.integer.value[0] = !oxfw->mute; + + return 0; +} + +static int oxfw_mute_put(struct snd_kcontrol *control, + struct snd_ctl_elem_value *value) +{ + struct snd_oxfw *oxfw = control->private_data; + bool mute; + int err; + + mute = !value->value.integer.value[0]; + + if (mute == oxfw->mute) + return 0; + + err = oxfw_mute_command(oxfw, &mute, CTL_WRITE); + if (err < 0) + return err; + oxfw->mute = mute; + + return 1; +} + +static int oxfw_volume_info(struct snd_kcontrol *control, + struct snd_ctl_elem_info *info) +{ + struct snd_oxfw *oxfw = control->private_data; + + info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + info->count = oxfw->device_info->mixer_channels; + info->value.integer.min = oxfw->volume_min; + info->value.integer.max = oxfw->volume_max; + + return 0; +} + +static const u8 channel_map[6] = { 0, 1, 4, 5, 2, 3 }; + +static int oxfw_volume_get(struct snd_kcontrol *control, + struct snd_ctl_elem_value *value) +{ + struct snd_oxfw *oxfw = control->private_data; + unsigned int i; + + for (i = 0; i < oxfw->device_info->mixer_channels; ++i) + value->value.integer.value[channel_map[i]] = oxfw->volume[i]; + + return 0; +} + +static int oxfw_volume_put(struct snd_kcontrol *control, + struct snd_ctl_elem_value *value) +{ + struct snd_oxfw *oxfw = control->private_data; + unsigned int i, changed_channels; + bool equal_values = true; + s16 volume; + int err; + + for (i = 0; i < oxfw->device_info->mixer_channels; ++i) { + if (value->value.integer.value[i] < oxfw->volume_min || + value->value.integer.value[i] > oxfw->volume_max) + return -EINVAL; + if (value->value.integer.value[i] != + value->value.integer.value[0]) + equal_values = false; + } + + changed_channels = 0; + for (i = 0; i < oxfw->device_info->mixer_channels; ++i) + if (value->value.integer.value[channel_map[i]] != + oxfw->volume[i]) + changed_channels |= 1 << (i + 1); + + if (equal_values && changed_channels != 0) + changed_channels = 1 << 0; + + for (i = 0; i <= oxfw->device_info->mixer_channels; ++i) { + volume = value->value.integer.value[channel_map[i ? i - 1 : 0]]; + if (changed_channels & (1 << i)) { + err = oxfw_volume_command(oxfw, &volume, i, + CTL_CURRENT, CTL_WRITE); + if (err < 0) + return err; + } + if (i > 0) + oxfw->volume[i - 1] = volume; + } + + return changed_channels != 0; +} + +int snd_oxfw_create_mixer(struct snd_oxfw *oxfw) +{ + static const struct snd_kcontrol_new controls[] = { + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Playback Switch", + .info = snd_ctl_boolean_mono_info, + .get = oxfw_mute_get, + .put = oxfw_mute_put, + }, + { + .iface = SNDRV_CTL_ELEM_IFACE_MIXER, + .name = "PCM Playback Volume", + .info = oxfw_volume_info, + .get = oxfw_volume_get, + .put = oxfw_volume_put, + }, + }; + unsigned int i, first_ch; + int err; + + err = oxfw_volume_command(oxfw, &oxfw->volume_min, + 0, CTL_MIN, CTL_READ); + if (err < 0) + return err; + err = oxfw_volume_command(oxfw, &oxfw->volume_max, + 0, CTL_MAX, CTL_READ); + if (err < 0) + return err; + + err = oxfw_mute_command(oxfw, &oxfw->mute, CTL_READ); + if (err < 0) + return err; + + first_ch = oxfw->device_info->mixer_channels == 1 ? 0 : 1; + for (i = 0; i < oxfw->device_info->mixer_channels; ++i) { + err = oxfw_volume_command(oxfw, &oxfw->volume[i], + first_ch + i, CTL_CURRENT, CTL_READ); + if (err < 0) + return err; + } + + for (i = 0; i < ARRAY_SIZE(controls); ++i) { + err = snd_ctl_add(oxfw->card, + snd_ctl_new1(&controls[i], oxfw)); + if (err < 0) + return err; + } + + return 0; +} diff --git a/kernel/sound/firewire/oxfw/oxfw-hwdep.c b/kernel/sound/firewire/oxfw/oxfw-hwdep.c new file mode 100644 index 000000000..ff2687ad0 --- /dev/null +++ b/kernel/sound/firewire/oxfw/oxfw-hwdep.c @@ -0,0 +1,190 @@ +/* + * oxfw_hwdep.c - a part of driver for OXFW970/971 based devices + * + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +/* + * This codes give three functionality. + * + * 1.get firewire node information + * 2.get notification about starting/stopping stream + * 3.lock/unlock stream + */ + +#include "oxfw.h" + +static long hwdep_read(struct snd_hwdep *hwdep, char __user *buf, long count, + loff_t *offset) +{ + struct snd_oxfw *oxfw = hwdep->private_data; + DEFINE_WAIT(wait); + union snd_firewire_event event; + + spin_lock_irq(&oxfw->lock); + + while (!oxfw->dev_lock_changed) { + prepare_to_wait(&oxfw->hwdep_wait, &wait, TASK_INTERRUPTIBLE); + spin_unlock_irq(&oxfw->lock); + schedule(); + finish_wait(&oxfw->hwdep_wait, &wait); + if (signal_pending(current)) + return -ERESTARTSYS; + spin_lock_irq(&oxfw->lock); + } + + memset(&event, 0, sizeof(event)); + if (oxfw->dev_lock_changed) { + event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS; + event.lock_status.status = (oxfw->dev_lock_count > 0); + oxfw->dev_lock_changed = false; + + count = min_t(long, count, sizeof(event.lock_status)); + } + + spin_unlock_irq(&oxfw->lock); + + if (copy_to_user(buf, &event, count)) + return -EFAULT; + + return count; +} + +static unsigned int hwdep_poll(struct snd_hwdep *hwdep, struct file *file, + poll_table *wait) +{ + struct snd_oxfw *oxfw = hwdep->private_data; + unsigned int events; + + poll_wait(file, &oxfw->hwdep_wait, wait); + + spin_lock_irq(&oxfw->lock); + if (oxfw->dev_lock_changed) + events = POLLIN | POLLRDNORM; + else + events = 0; + spin_unlock_irq(&oxfw->lock); + + return events; +} + +static int hwdep_get_info(struct snd_oxfw *oxfw, void __user *arg) +{ + struct fw_device *dev = fw_parent_device(oxfw->unit); + struct snd_firewire_get_info info; + + memset(&info, 0, sizeof(info)); + info.type = SNDRV_FIREWIRE_TYPE_OXFW; + info.card = dev->card->index; + *(__be32 *)&info.guid[0] = cpu_to_be32(dev->config_rom[3]); + *(__be32 *)&info.guid[4] = cpu_to_be32(dev->config_rom[4]); + strlcpy(info.device_name, dev_name(&dev->device), + sizeof(info.device_name)); + + if (copy_to_user(arg, &info, sizeof(info))) + return -EFAULT; + + return 0; +} + +static int hwdep_lock(struct snd_oxfw *oxfw) +{ + int err; + + spin_lock_irq(&oxfw->lock); + + if (oxfw->dev_lock_count == 0) { + oxfw->dev_lock_count = -1; + err = 0; + } else { + err = -EBUSY; + } + + spin_unlock_irq(&oxfw->lock); + + return err; +} + +static int hwdep_unlock(struct snd_oxfw *oxfw) +{ + int err; + + spin_lock_irq(&oxfw->lock); + + if (oxfw->dev_lock_count == -1) { + oxfw->dev_lock_count = 0; + err = 0; + } else { + err = -EBADFD; + } + + spin_unlock_irq(&oxfw->lock); + + return err; +} + +static int hwdep_release(struct snd_hwdep *hwdep, struct file *file) +{ + struct snd_oxfw *oxfw = hwdep->private_data; + + spin_lock_irq(&oxfw->lock); + if (oxfw->dev_lock_count == -1) + oxfw->dev_lock_count = 0; + spin_unlock_irq(&oxfw->lock); + + return 0; +} + +static int hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file, + unsigned int cmd, unsigned long arg) +{ + struct snd_oxfw *oxfw = hwdep->private_data; + + switch (cmd) { + case SNDRV_FIREWIRE_IOCTL_GET_INFO: + return hwdep_get_info(oxfw, (void __user *)arg); + case SNDRV_FIREWIRE_IOCTL_LOCK: + return hwdep_lock(oxfw); + case SNDRV_FIREWIRE_IOCTL_UNLOCK: + return hwdep_unlock(oxfw); + default: + return -ENOIOCTLCMD; + } +} + +#ifdef CONFIG_COMPAT +static int hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file, + unsigned int cmd, unsigned long arg) +{ + return hwdep_ioctl(hwdep, file, cmd, + (unsigned long)compat_ptr(arg)); +} +#else +#define hwdep_compat_ioctl NULL +#endif + +int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw) +{ + static const struct snd_hwdep_ops hwdep_ops = { + .read = hwdep_read, + .release = hwdep_release, + .poll = hwdep_poll, + .ioctl = hwdep_ioctl, + .ioctl_compat = hwdep_compat_ioctl, + }; + struct snd_hwdep *hwdep; + int err; + + err = snd_hwdep_new(oxfw->card, oxfw->card->driver, 0, &hwdep); + if (err < 0) + goto end; + strcpy(hwdep->name, oxfw->card->driver); + hwdep->iface = SNDRV_HWDEP_IFACE_FW_OXFW; + hwdep->ops = hwdep_ops; + hwdep->private_data = oxfw; + hwdep->exclusive = true; +end: + return err; +} diff --git a/kernel/sound/firewire/oxfw/oxfw-midi.c b/kernel/sound/firewire/oxfw/oxfw-midi.c new file mode 100644 index 000000000..540a30338 --- /dev/null +++ b/kernel/sound/firewire/oxfw/oxfw-midi.c @@ -0,0 +1,207 @@ +/* + * oxfw_midi.c - a part of driver for OXFW970/971 based devices + * + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "oxfw.h" + +static int midi_capture_open(struct snd_rawmidi_substream *substream) +{ + struct snd_oxfw *oxfw = substream->rmidi->private_data; + int err; + + err = snd_oxfw_stream_lock_try(oxfw); + if (err < 0) + return err; + + mutex_lock(&oxfw->mutex); + + oxfw->capture_substreams++; + err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->tx_stream, 0, 0); + + mutex_unlock(&oxfw->mutex); + + if (err < 0) + snd_oxfw_stream_lock_release(oxfw); + + return err; +} + +static int midi_playback_open(struct snd_rawmidi_substream *substream) +{ + struct snd_oxfw *oxfw = substream->rmidi->private_data; + int err; + + err = snd_oxfw_stream_lock_try(oxfw); + if (err < 0) + return err; + + mutex_lock(&oxfw->mutex); + + oxfw->playback_substreams++; + err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->rx_stream, 0, 0); + + mutex_unlock(&oxfw->mutex); + + if (err < 0) + snd_oxfw_stream_lock_release(oxfw); + + return err; +} + +static int midi_capture_close(struct snd_rawmidi_substream *substream) +{ + struct snd_oxfw *oxfw = substream->rmidi->private_data; + + mutex_lock(&oxfw->mutex); + + oxfw->capture_substreams--; + snd_oxfw_stream_stop_simplex(oxfw, &oxfw->tx_stream); + + mutex_unlock(&oxfw->mutex); + + snd_oxfw_stream_lock_release(oxfw); + return 0; +} + +static int midi_playback_close(struct snd_rawmidi_substream *substream) +{ + struct snd_oxfw *oxfw = substream->rmidi->private_data; + + mutex_lock(&oxfw->mutex); + + oxfw->playback_substreams--; + snd_oxfw_stream_stop_simplex(oxfw, &oxfw->rx_stream); + + mutex_unlock(&oxfw->mutex); + + snd_oxfw_stream_lock_release(oxfw); + return 0; +} + +static void midi_capture_trigger(struct snd_rawmidi_substream *substrm, int up) +{ + struct snd_oxfw *oxfw = substrm->rmidi->private_data; + unsigned long flags; + + spin_lock_irqsave(&oxfw->lock, flags); + + if (up) + amdtp_stream_midi_trigger(&oxfw->tx_stream, + substrm->number, substrm); + else + amdtp_stream_midi_trigger(&oxfw->tx_stream, + substrm->number, NULL); + + spin_unlock_irqrestore(&oxfw->lock, flags); +} + +static void midi_playback_trigger(struct snd_rawmidi_substream *substrm, int up) +{ + struct snd_oxfw *oxfw = substrm->rmidi->private_data; + unsigned long flags; + + spin_lock_irqsave(&oxfw->lock, flags); + + if (up) + amdtp_stream_midi_trigger(&oxfw->rx_stream, + substrm->number, substrm); + else + amdtp_stream_midi_trigger(&oxfw->rx_stream, + substrm->number, NULL); + + spin_unlock_irqrestore(&oxfw->lock, flags); +} + +static struct snd_rawmidi_ops midi_capture_ops = { + .open = midi_capture_open, + .close = midi_capture_close, + .trigger = midi_capture_trigger, +}; + +static struct snd_rawmidi_ops midi_playback_ops = { + .open = midi_playback_open, + .close = midi_playback_close, + .trigger = midi_playback_trigger, +}; + +static void set_midi_substream_names(struct snd_oxfw *oxfw, + struct snd_rawmidi_str *str) +{ + struct snd_rawmidi_substream *subs; + + list_for_each_entry(subs, &str->substreams, list) { + snprintf(subs->name, sizeof(subs->name), + "%s MIDI %d", + oxfw->card->shortname, subs->number + 1); + } +} + +int snd_oxfw_create_midi(struct snd_oxfw *oxfw) +{ + struct snd_oxfw_stream_formation formation; + struct snd_rawmidi *rmidi; + struct snd_rawmidi_str *str; + u8 *format; + int i, err; + + /* If its stream has MIDI conformant data channel, add one MIDI port */ + for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { + format = oxfw->tx_stream_formats[i]; + if (format != NULL) { + err = snd_oxfw_stream_parse_format(format, &formation); + if (err >= 0 && formation.midi > 0) + oxfw->midi_input_ports = 1; + } + + format = oxfw->rx_stream_formats[i]; + if (format != NULL) { + err = snd_oxfw_stream_parse_format(format, &formation); + if (err >= 0 && formation.midi > 0) + oxfw->midi_output_ports = 1; + } + } + if ((oxfw->midi_input_ports == 0) && (oxfw->midi_output_ports == 0)) + return 0; + + /* create midi ports */ + err = snd_rawmidi_new(oxfw->card, oxfw->card->driver, 0, + oxfw->midi_output_ports, oxfw->midi_input_ports, + &rmidi); + if (err < 0) + return err; + + snprintf(rmidi->name, sizeof(rmidi->name), + "%s MIDI", oxfw->card->shortname); + rmidi->private_data = oxfw; + + if (oxfw->midi_input_ports > 0) { + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_INPUT; + + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, + &midi_capture_ops); + + str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_INPUT]; + + set_midi_substream_names(oxfw, str); + } + + if (oxfw->midi_output_ports > 0) { + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT; + + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, + &midi_playback_ops); + + str = &rmidi->streams[SNDRV_RAWMIDI_STREAM_OUTPUT]; + + set_midi_substream_names(oxfw, str); + } + + if ((oxfw->midi_output_ports > 0) && (oxfw->midi_input_ports > 0)) + rmidi->info_flags |= SNDRV_RAWMIDI_INFO_DUPLEX; + + return 0; +} diff --git a/kernel/sound/firewire/oxfw/oxfw-pcm.c b/kernel/sound/firewire/oxfw/oxfw-pcm.c new file mode 100644 index 000000000..67ade0775 --- /dev/null +++ b/kernel/sound/firewire/oxfw/oxfw-pcm.c @@ -0,0 +1,424 @@ +/* + * oxfw_pcm.c - a part of driver for OXFW970/971 based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "oxfw.h" + +static int hw_rule_rate(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + u8 **formats = rule->private; + struct snd_interval *r = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); + const struct snd_interval *c = + hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS); + struct snd_interval t = { + .min = UINT_MAX, .max = 0, .integer = 1 + }; + struct snd_oxfw_stream_formation formation; + int i, err; + + for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { + if (formats[i] == NULL) + continue; + + err = snd_oxfw_stream_parse_format(formats[i], &formation); + if (err < 0) + continue; + if (!snd_interval_test(c, formation.pcm)) + continue; + + t.min = min(t.min, formation.rate); + t.max = max(t.max, formation.rate); + + } + return snd_interval_refine(r, &t); +} + +static int hw_rule_channels(struct snd_pcm_hw_params *params, + struct snd_pcm_hw_rule *rule) +{ + u8 **formats = rule->private; + struct snd_interval *c = + hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); + const struct snd_interval *r = + hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE); + struct snd_oxfw_stream_formation formation; + int i, j, err; + unsigned int count, list[SND_OXFW_STREAM_FORMAT_ENTRIES] = {0}; + + count = 0; + for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { + if (formats[i] == NULL) + break; + + err = snd_oxfw_stream_parse_format(formats[i], &formation); + if (err < 0) + continue; + if (!snd_interval_test(r, formation.rate)) + continue; + if (list[count] == formation.pcm) + continue; + + for (j = 0; j < ARRAY_SIZE(list); j++) { + if (list[j] == formation.pcm) + break; + } + if (j == ARRAY_SIZE(list)) { + list[count] = formation.pcm; + if (++count == ARRAY_SIZE(list)) + break; + } + } + + return snd_interval_list(c, count, list, 0); +} + +static void limit_channels_and_rates(struct snd_pcm_hardware *hw, u8 **formats) +{ + struct snd_oxfw_stream_formation formation; + int i, err; + + hw->channels_min = UINT_MAX; + hw->channels_max = 0; + + hw->rate_min = UINT_MAX; + hw->rate_max = 0; + hw->rates = 0; + + for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { + if (formats[i] == NULL) + break; + + err = snd_oxfw_stream_parse_format(formats[i], &formation); + if (err < 0) + continue; + + hw->channels_min = min(hw->channels_min, formation.pcm); + hw->channels_max = max(hw->channels_max, formation.pcm); + + hw->rate_min = min(hw->rate_min, formation.rate); + hw->rate_max = max(hw->rate_max, formation.rate); + hw->rates |= snd_pcm_rate_to_rate_bit(formation.rate); + } +} + +static void limit_period_and_buffer(struct snd_pcm_hardware *hw) +{ + hw->periods_min = 2; /* SNDRV_PCM_INFO_BATCH */ + hw->periods_max = UINT_MAX; + + hw->period_bytes_min = 4 * hw->channels_max; /* bytes for a frame */ + + /* Just to prevent from allocating much pages. */ + hw->period_bytes_max = hw->period_bytes_min * 2048; + hw->buffer_bytes_max = hw->period_bytes_max * hw->periods_min; +} + +static int init_hw_params(struct snd_oxfw *oxfw, + struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + u8 **formats; + struct amdtp_stream *stream; + int err; + + runtime->hw.info = SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_JOINT_DUPLEX | + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID; + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { + runtime->hw.formats = AMDTP_IN_PCM_FORMAT_BITS; + stream = &oxfw->tx_stream; + formats = oxfw->tx_stream_formats; + } else { + runtime->hw.formats = AMDTP_OUT_PCM_FORMAT_BITS; + stream = &oxfw->rx_stream; + formats = oxfw->rx_stream_formats; + } + + limit_channels_and_rates(&runtime->hw, formats); + limit_period_and_buffer(&runtime->hw); + + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, + hw_rule_channels, formats, + SNDRV_PCM_HW_PARAM_RATE, -1); + if (err < 0) + goto end; + + err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, + hw_rule_rate, formats, + SNDRV_PCM_HW_PARAM_CHANNELS, -1); + if (err < 0) + goto end; + + err = amdtp_stream_add_pcm_hw_constraints(stream, runtime); +end: + return err; +} + +static int limit_to_current_params(struct snd_pcm_substream *substream) +{ + struct snd_oxfw *oxfw = substream->private_data; + struct snd_oxfw_stream_formation formation; + enum avc_general_plug_dir dir; + int err; + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) + dir = AVC_GENERAL_PLUG_DIR_OUT; + else + dir = AVC_GENERAL_PLUG_DIR_IN; + + err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation); + if (err < 0) + goto end; + + substream->runtime->hw.channels_min = formation.pcm; + substream->runtime->hw.channels_max = formation.pcm; + substream->runtime->hw.rate_min = formation.rate; + substream->runtime->hw.rate_max = formation.rate; +end: + return err; +} + +static int pcm_open(struct snd_pcm_substream *substream) +{ + struct snd_oxfw *oxfw = substream->private_data; + int err; + + err = snd_oxfw_stream_lock_try(oxfw); + if (err < 0) + goto end; + + err = init_hw_params(oxfw, substream); + if (err < 0) + goto err_locked; + + /* + * When any PCM streams are already running, the available sampling + * rate is limited at current value. + */ + if (amdtp_stream_pcm_running(&oxfw->tx_stream) || + amdtp_stream_pcm_running(&oxfw->rx_stream)) { + err = limit_to_current_params(substream); + if (err < 0) + goto end; + } + + snd_pcm_set_sync(substream); +end: + return err; +err_locked: + snd_oxfw_stream_lock_release(oxfw); + return err; +} + +static int pcm_close(struct snd_pcm_substream *substream) +{ + struct snd_oxfw *oxfw = substream->private_data; + + snd_oxfw_stream_lock_release(oxfw); + return 0; +} + +static int pcm_capture_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_oxfw *oxfw = substream->private_data; + + + if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) { + mutex_lock(&oxfw->mutex); + oxfw->capture_substreams++; + mutex_unlock(&oxfw->mutex); + } + + amdtp_stream_set_pcm_format(&oxfw->tx_stream, params_format(hw_params)); + + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); +} +static int pcm_playback_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *hw_params) +{ + struct snd_oxfw *oxfw = substream->private_data; + + if (substream->runtime->status->state == SNDRV_PCM_STATE_OPEN) { + mutex_lock(&oxfw->mutex); + oxfw->playback_substreams++; + mutex_unlock(&oxfw->mutex); + } + + amdtp_stream_set_pcm_format(&oxfw->rx_stream, params_format(hw_params)); + + return snd_pcm_lib_alloc_vmalloc_buffer(substream, + params_buffer_bytes(hw_params)); +} + +static int pcm_capture_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_oxfw *oxfw = substream->private_data; + + mutex_lock(&oxfw->mutex); + + if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) + oxfw->capture_substreams--; + + snd_oxfw_stream_stop_simplex(oxfw, &oxfw->tx_stream); + + mutex_unlock(&oxfw->mutex); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} +static int pcm_playback_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_oxfw *oxfw = substream->private_data; + + mutex_lock(&oxfw->mutex); + + if (substream->runtime->status->state != SNDRV_PCM_STATE_OPEN) + oxfw->playback_substreams--; + + snd_oxfw_stream_stop_simplex(oxfw, &oxfw->rx_stream); + + mutex_unlock(&oxfw->mutex); + + return snd_pcm_lib_free_vmalloc_buffer(substream); +} + +static int pcm_capture_prepare(struct snd_pcm_substream *substream) +{ + struct snd_oxfw *oxfw = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + int err; + + mutex_lock(&oxfw->mutex); + err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->tx_stream, + runtime->rate, runtime->channels); + mutex_unlock(&oxfw->mutex); + if (err < 0) + goto end; + + amdtp_stream_pcm_prepare(&oxfw->tx_stream); +end: + return err; +} +static int pcm_playback_prepare(struct snd_pcm_substream *substream) +{ + struct snd_oxfw *oxfw = substream->private_data; + struct snd_pcm_runtime *runtime = substream->runtime; + int err; + + mutex_lock(&oxfw->mutex); + err = snd_oxfw_stream_start_simplex(oxfw, &oxfw->rx_stream, + runtime->rate, runtime->channels); + mutex_unlock(&oxfw->mutex); + if (err < 0) + goto end; + + amdtp_stream_pcm_prepare(&oxfw->rx_stream); +end: + return err; +} + +static int pcm_capture_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_oxfw *oxfw = substream->private_data; + struct snd_pcm_substream *pcm; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + pcm = substream; + break; + case SNDRV_PCM_TRIGGER_STOP: + pcm = NULL; + break; + default: + return -EINVAL; + } + amdtp_stream_pcm_trigger(&oxfw->tx_stream, pcm); + return 0; +} +static int pcm_playback_trigger(struct snd_pcm_substream *substream, int cmd) +{ + struct snd_oxfw *oxfw = substream->private_data; + struct snd_pcm_substream *pcm; + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + pcm = substream; + break; + case SNDRV_PCM_TRIGGER_STOP: + pcm = NULL; + break; + default: + return -EINVAL; + } + amdtp_stream_pcm_trigger(&oxfw->rx_stream, pcm); + return 0; +} + +static snd_pcm_uframes_t pcm_capture_pointer(struct snd_pcm_substream *sbstm) +{ + struct snd_oxfw *oxfw = sbstm->private_data; + + return amdtp_stream_pcm_pointer(&oxfw->tx_stream); +} +static snd_pcm_uframes_t pcm_playback_pointer(struct snd_pcm_substream *sbstm) +{ + struct snd_oxfw *oxfw = sbstm->private_data; + + return amdtp_stream_pcm_pointer(&oxfw->rx_stream); +} + +int snd_oxfw_create_pcm(struct snd_oxfw *oxfw) +{ + static struct snd_pcm_ops capture_ops = { + .open = pcm_open, + .close = pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = pcm_capture_hw_params, + .hw_free = pcm_capture_hw_free, + .prepare = pcm_capture_prepare, + .trigger = pcm_capture_trigger, + .pointer = pcm_capture_pointer, + .page = snd_pcm_lib_get_vmalloc_page, + .mmap = snd_pcm_lib_mmap_vmalloc, + }; + static struct snd_pcm_ops playback_ops = { + .open = pcm_open, + .close = pcm_close, + .ioctl = snd_pcm_lib_ioctl, + .hw_params = pcm_playback_hw_params, + .hw_free = pcm_playback_hw_free, + .prepare = pcm_playback_prepare, + .trigger = pcm_playback_trigger, + .pointer = pcm_playback_pointer, + .page = snd_pcm_lib_get_vmalloc_page, + .mmap = snd_pcm_lib_mmap_vmalloc, + }; + struct snd_pcm *pcm; + unsigned int cap = 0; + int err; + + if (oxfw->has_output) + cap = 1; + + err = snd_pcm_new(oxfw->card, oxfw->card->driver, 0, 1, cap, &pcm); + if (err < 0) + return err; + + pcm->private_data = oxfw; + strcpy(pcm->name, oxfw->card->shortname); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &playback_ops); + if (cap > 0) + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &capture_ops); + + return 0; +} diff --git a/kernel/sound/firewire/oxfw/oxfw-proc.c b/kernel/sound/firewire/oxfw/oxfw-proc.c new file mode 100644 index 000000000..8ba4f9f26 --- /dev/null +++ b/kernel/sound/firewire/oxfw/oxfw-proc.c @@ -0,0 +1,113 @@ +/* + * oxfw_proc.c - a part of driver for OXFW970/971 based devices + * + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "./oxfw.h" + +static void proc_read_formation(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_oxfw *oxfw = entry->private_data; + struct snd_oxfw_stream_formation formation, curr; + u8 *format; + char flag; + int i, err; + + /* Show input. */ + err = snd_oxfw_stream_get_current_formation(oxfw, + AVC_GENERAL_PLUG_DIR_IN, + &curr); + if (err < 0) + return; + + snd_iprintf(buffer, "Input Stream to device:\n"); + snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n"); + for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { + format = oxfw->rx_stream_formats[i]; + if (format == NULL) + continue; + + err = snd_oxfw_stream_parse_format(format, &formation); + if (err < 0) + continue; + + if (memcmp(&formation, &curr, sizeof(curr)) == 0) + flag = '*'; + else + flag = ' '; + + snd_iprintf(buffer, "%c\t%d\t%d\t%d\n", flag, + formation.rate, formation.pcm, formation.midi); + } + + if (!oxfw->has_output) + return; + + /* Show output. */ + err = snd_oxfw_stream_get_current_formation(oxfw, + AVC_GENERAL_PLUG_DIR_OUT, + &curr); + if (err < 0) + return; + + snd_iprintf(buffer, "Output Stream from device:\n"); + snd_iprintf(buffer, "\tRate\tPCM\tMIDI\n"); + for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { + format = oxfw->tx_stream_formats[i]; + if (format == NULL) + continue; + + err = snd_oxfw_stream_parse_format(format, &formation); + if (err < 0) + continue; + + if (memcmp(&formation, &curr, sizeof(curr)) == 0) + flag = '*'; + else + flag = ' '; + + snd_iprintf(buffer, "%c\t%d\t%d\t%d\n", flag, + formation.rate, formation.pcm, formation.midi); + } +} + +static void add_node(struct snd_oxfw *oxfw, struct snd_info_entry *root, + const char *name, + void (*op)(struct snd_info_entry *e, + struct snd_info_buffer *b)) +{ + struct snd_info_entry *entry; + + entry = snd_info_create_card_entry(oxfw->card, name, root); + if (entry == NULL) + return; + + snd_info_set_text_ops(entry, oxfw, op); + if (snd_info_register(entry) < 0) + snd_info_free_entry(entry); +} + +void snd_oxfw_proc_init(struct snd_oxfw *oxfw) +{ + struct snd_info_entry *root; + + /* + * All nodes are automatically removed at snd_card_disconnect(), + * by following to link list. + */ + root = snd_info_create_card_entry(oxfw->card, "firewire", + oxfw->card->proc_root); + if (root == NULL) + return; + root->mode = S_IFDIR | S_IRUGO | S_IXUGO; + if (snd_info_register(root) < 0) { + snd_info_free_entry(root); + return; + } + + add_node(oxfw, root, "formation", proc_read_formation); +} diff --git a/kernel/sound/firewire/oxfw/oxfw-stream.c b/kernel/sound/firewire/oxfw/oxfw-stream.c new file mode 100644 index 000000000..e6757cd85 --- /dev/null +++ b/kernel/sound/firewire/oxfw/oxfw-stream.c @@ -0,0 +1,689 @@ +/* + * oxfw_stream.c - a part of driver for OXFW970/971 based devices + * + * Copyright (c) 2014 Takashi Sakamoto + * + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "oxfw.h" +#include <linux/delay.h> + +#define AVC_GENERIC_FRAME_MAXIMUM_BYTES 512 +#define CALLBACK_TIMEOUT 200 + +/* + * According to datasheet of Oxford Semiconductor: + * OXFW970: 32.0/44.1/48.0/96.0 Khz, 8 audio channels I/O + * OXFW971: 32.0/44.1/48.0/88.2/96.0/192.0 kHz, 16 audio channels I/O, MIDI I/O + */ +static const unsigned int oxfw_rate_table[] = { + [0] = 32000, + [1] = 44100, + [2] = 48000, + [3] = 88200, + [4] = 96000, + [5] = 192000, +}; + +/* + * See Table 5.7 – Sampling frequency for Multi-bit Audio + * in AV/C Stream Format Information Specification 1.1 (Apr 2005, 1394TA) + */ +static const unsigned int avc_stream_rate_table[] = { + [0] = 0x02, + [1] = 0x03, + [2] = 0x04, + [3] = 0x0a, + [4] = 0x05, + [5] = 0x07, +}; + +static int set_rate(struct snd_oxfw *oxfw, unsigned int rate) +{ + int err; + + err = avc_general_set_sig_fmt(oxfw->unit, rate, + AVC_GENERAL_PLUG_DIR_IN, 0); + if (err < 0) + goto end; + + if (oxfw->has_output) + err = avc_general_set_sig_fmt(oxfw->unit, rate, + AVC_GENERAL_PLUG_DIR_OUT, 0); +end: + return err; +} + +static int set_stream_format(struct snd_oxfw *oxfw, struct amdtp_stream *s, + unsigned int rate, unsigned int pcm_channels) +{ + u8 **formats; + struct snd_oxfw_stream_formation formation; + enum avc_general_plug_dir dir; + unsigned int len; + int i, err; + + if (s == &oxfw->tx_stream) { + formats = oxfw->tx_stream_formats; + dir = AVC_GENERAL_PLUG_DIR_OUT; + } else { + formats = oxfw->rx_stream_formats; + dir = AVC_GENERAL_PLUG_DIR_IN; + } + + /* Seek stream format for requirements. */ + for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { + err = snd_oxfw_stream_parse_format(formats[i], &formation); + if (err < 0) + return err; + + if ((formation.rate == rate) && (formation.pcm == pcm_channels)) + break; + } + if (i == SND_OXFW_STREAM_FORMAT_ENTRIES) + return -EINVAL; + + /* If assumed, just change rate. */ + if (oxfw->assumed) + return set_rate(oxfw, rate); + + /* Calculate format length. */ + len = 5 + formats[i][4] * 2; + + err = avc_stream_set_format(oxfw->unit, dir, 0, formats[i], len); + if (err < 0) + return err; + + /* Some requests just after changing format causes freezing. */ + msleep(100); + + return 0; +} + +static void stop_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream) +{ + amdtp_stream_pcm_abort(stream); + amdtp_stream_stop(stream); + + if (stream == &oxfw->tx_stream) + cmp_connection_break(&oxfw->out_conn); + else + cmp_connection_break(&oxfw->in_conn); +} + +static int start_stream(struct snd_oxfw *oxfw, struct amdtp_stream *stream, + unsigned int rate, unsigned int pcm_channels) +{ + u8 **formats; + struct cmp_connection *conn; + struct snd_oxfw_stream_formation formation; + unsigned int i, midi_ports; + int err; + + if (stream == &oxfw->rx_stream) { + formats = oxfw->rx_stream_formats; + conn = &oxfw->in_conn; + } else { + formats = oxfw->tx_stream_formats; + conn = &oxfw->out_conn; + } + + /* Get stream format */ + for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { + if (formats[i] == NULL) + break; + + err = snd_oxfw_stream_parse_format(formats[i], &formation); + if (err < 0) + goto end; + if (rate != formation.rate) + continue; + if (pcm_channels == 0 || pcm_channels == formation.pcm) + break; + } + if (i == SND_OXFW_STREAM_FORMAT_ENTRIES) { + err = -EINVAL; + goto end; + } + + pcm_channels = formation.pcm; + midi_ports = DIV_ROUND_UP(formation.midi, 8); + + /* The stream should have one pcm channels at least */ + if (pcm_channels == 0) { + err = -EINVAL; + goto end; + } + amdtp_stream_set_parameters(stream, rate, pcm_channels, midi_ports); + + err = cmp_connection_establish(conn, + amdtp_stream_get_max_payload(stream)); + if (err < 0) + goto end; + + err = amdtp_stream_start(stream, + conn->resources.channel, + conn->speed); + if (err < 0) { + cmp_connection_break(conn); + goto end; + } + + /* Wait first packet */ + if (!amdtp_stream_wait_callback(stream, CALLBACK_TIMEOUT)) { + stop_stream(oxfw, stream); + err = -ETIMEDOUT; + } +end: + return err; +} + +static int check_connection_used_by_others(struct snd_oxfw *oxfw, + struct amdtp_stream *stream) +{ + struct cmp_connection *conn; + bool used; + int err; + + if (stream == &oxfw->tx_stream) + conn = &oxfw->out_conn; + else + conn = &oxfw->in_conn; + + err = cmp_connection_check_used(conn, &used); + if ((err >= 0) && used && !amdtp_stream_running(stream)) { + dev_err(&oxfw->unit->device, + "Connection established by others: %cPCR[%d]\n", + (conn->direction == CMP_OUTPUT) ? 'o' : 'i', + conn->pcr_index); + err = -EBUSY; + } + + return err; +} + +int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw, + struct amdtp_stream *stream) +{ + struct cmp_connection *conn; + enum cmp_direction c_dir; + enum amdtp_stream_direction s_dir; + int err; + + if (stream == &oxfw->tx_stream) { + conn = &oxfw->out_conn; + c_dir = CMP_OUTPUT; + s_dir = AMDTP_IN_STREAM; + } else { + conn = &oxfw->in_conn; + c_dir = CMP_INPUT; + s_dir = AMDTP_OUT_STREAM; + } + + err = cmp_connection_init(conn, oxfw->unit, c_dir, 0); + if (err < 0) + goto end; + + err = amdtp_stream_init(stream, oxfw->unit, s_dir, CIP_NONBLOCKING); + if (err < 0) { + amdtp_stream_destroy(stream); + cmp_connection_destroy(conn); + goto end; + } + + /* OXFW starts to transmit packets with non-zero dbc. */ + if (stream == &oxfw->tx_stream) + oxfw->tx_stream.flags |= CIP_SKIP_INIT_DBC_CHECK; +end: + return err; +} + +int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw, + struct amdtp_stream *stream, + unsigned int rate, unsigned int pcm_channels) +{ + struct amdtp_stream *opposite; + struct snd_oxfw_stream_formation formation; + enum avc_general_plug_dir dir; + unsigned int substreams, opposite_substreams; + int err = 0; + + if (stream == &oxfw->tx_stream) { + substreams = oxfw->capture_substreams; + opposite = &oxfw->rx_stream; + opposite_substreams = oxfw->playback_substreams; + dir = AVC_GENERAL_PLUG_DIR_OUT; + } else { + substreams = oxfw->playback_substreams; + opposite_substreams = oxfw->capture_substreams; + + if (oxfw->has_output) + opposite = &oxfw->rx_stream; + else + opposite = NULL; + + dir = AVC_GENERAL_PLUG_DIR_IN; + } + + if (substreams == 0) + goto end; + + /* + * Considering JACK/FFADO streaming: + * TODO: This can be removed hwdep functionality becomes popular. + */ + err = check_connection_used_by_others(oxfw, stream); + if (err < 0) + goto end; + + /* packet queueing error */ + if (amdtp_streaming_error(stream)) + stop_stream(oxfw, stream); + + err = snd_oxfw_stream_get_current_formation(oxfw, dir, &formation); + if (err < 0) + goto end; + if (rate == 0) + rate = formation.rate; + if (pcm_channels == 0) + pcm_channels = formation.pcm; + + if ((formation.rate != rate) || (formation.pcm != pcm_channels)) { + if (opposite != NULL) { + err = check_connection_used_by_others(oxfw, opposite); + if (err < 0) + goto end; + stop_stream(oxfw, opposite); + } + stop_stream(oxfw, stream); + + err = set_stream_format(oxfw, stream, rate, pcm_channels); + if (err < 0) { + dev_err(&oxfw->unit->device, + "fail to set stream format: %d\n", err); + goto end; + } + + /* Start opposite stream if needed. */ + if (opposite && !amdtp_stream_running(opposite) && + (opposite_substreams > 0)) { + err = start_stream(oxfw, opposite, rate, 0); + if (err < 0) { + dev_err(&oxfw->unit->device, + "fail to restart stream: %d\n", err); + goto end; + } + } + } + + /* Start requested stream. */ + if (!amdtp_stream_running(stream)) { + err = start_stream(oxfw, stream, rate, pcm_channels); + if (err < 0) + dev_err(&oxfw->unit->device, + "fail to start stream: %d\n", err); + } +end: + return err; +} + +void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw, + struct amdtp_stream *stream) +{ + if (((stream == &oxfw->tx_stream) && (oxfw->capture_substreams > 0)) || + ((stream == &oxfw->rx_stream) && (oxfw->playback_substreams > 0))) + return; + + stop_stream(oxfw, stream); +} + +/* + * This function should be called before starting the stream or after stopping + * the streams. + */ +void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw, + struct amdtp_stream *stream) +{ + struct cmp_connection *conn; + + if (stream == &oxfw->tx_stream) + conn = &oxfw->out_conn; + else + conn = &oxfw->in_conn; + + amdtp_stream_destroy(stream); + cmp_connection_destroy(conn); +} + +void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw, + struct amdtp_stream *stream) +{ + struct cmp_connection *conn; + + if (stream == &oxfw->tx_stream) + conn = &oxfw->out_conn; + else + conn = &oxfw->in_conn; + + if (cmp_connection_update(conn) < 0) + stop_stream(oxfw, stream); + else + amdtp_stream_update(stream); +} + +int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, + enum avc_general_plug_dir dir, + struct snd_oxfw_stream_formation *formation) +{ + u8 *format; + unsigned int len; + int err; + + len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; + format = kmalloc(len, GFP_KERNEL); + if (format == NULL) + return -ENOMEM; + + err = avc_stream_get_format_single(oxfw->unit, dir, 0, format, &len); + if (err < 0) + goto end; + if (len < 3) { + err = -EIO; + goto end; + } + + err = snd_oxfw_stream_parse_format(format, formation); +end: + kfree(format); + return err; +} + +/* + * See Table 6.16 - AM824 Stream Format + * Figure 6.19 - format_information field for AM824 Compound + * in AV/C Stream Format Information Specification 1.1 (Apr 2005, 1394TA) + * Also 'Clause 12 AM824 sequence adaption layers' in IEC 61883-6:2005 + */ +int snd_oxfw_stream_parse_format(u8 *format, + struct snd_oxfw_stream_formation *formation) +{ + unsigned int i, e, channels, type; + + memset(formation, 0, sizeof(struct snd_oxfw_stream_formation)); + + /* + * this module can support a hierarchy combination that: + * Root: Audio and Music (0x90) + * Level 1: AM824 Compound (0x40) + */ + if ((format[0] != 0x90) || (format[1] != 0x40)) + return -ENOSYS; + + /* check the sampling rate */ + for (i = 0; i < ARRAY_SIZE(avc_stream_rate_table); i++) { + if (format[2] == avc_stream_rate_table[i]) + break; + } + if (i == ARRAY_SIZE(avc_stream_rate_table)) + return -ENOSYS; + + formation->rate = oxfw_rate_table[i]; + + for (e = 0; e < format[4]; e++) { + channels = format[5 + e * 2]; + type = format[6 + e * 2]; + + switch (type) { + /* IEC 60958 Conformant, currently handled as MBLA */ + case 0x00: + /* Multi Bit Linear Audio (Raw) */ + case 0x06: + formation->pcm += channels; + break; + /* MIDI Conformant */ + case 0x0d: + formation->midi = channels; + break; + /* IEC 61937-3 to 7 */ + case 0x01: + case 0x02: + case 0x03: + case 0x04: + case 0x05: + /* Multi Bit Linear Audio */ + case 0x07: /* DVD-Audio */ + case 0x0c: /* High Precision */ + /* One Bit Audio */ + case 0x08: /* (Plain) Raw */ + case 0x09: /* (Plain) SACD */ + case 0x0a: /* (Encoded) Raw */ + case 0x0b: /* (Encoded) SACD */ + /* SMPTE Time-Code conformant */ + case 0x0e: + /* Sample Count */ + case 0x0f: + /* Anciliary Data */ + case 0x10: + /* Synchronization Stream (Stereo Raw audio) */ + case 0x40: + /* Don't care */ + case 0xff: + default: + return -ENOSYS; /* not supported */ + } + } + + if (formation->pcm > AMDTP_MAX_CHANNELS_FOR_PCM || + formation->midi > AMDTP_MAX_CHANNELS_FOR_MIDI) + return -ENOSYS; + + return 0; +} + +static int +assume_stream_formats(struct snd_oxfw *oxfw, enum avc_general_plug_dir dir, + unsigned int pid, u8 *buf, unsigned int *len, + u8 **formats) +{ + struct snd_oxfw_stream_formation formation; + unsigned int i, eid; + int err; + + /* get format at current sampling rate */ + err = avc_stream_get_format_single(oxfw->unit, dir, pid, buf, len); + if (err < 0) { + dev_err(&oxfw->unit->device, + "fail to get current stream format for isoc %s plug %d:%d\n", + (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : "out", + pid, err); + goto end; + } + + /* parse and set stream format */ + eid = 0; + err = snd_oxfw_stream_parse_format(buf, &formation); + if (err < 0) + goto end; + + formats[eid] = kmalloc(*len, GFP_KERNEL); + if (formats[eid] == NULL) { + err = -ENOMEM; + goto end; + } + memcpy(formats[eid], buf, *len); + + /* apply the format for each available sampling rate */ + for (i = 0; i < ARRAY_SIZE(oxfw_rate_table); i++) { + if (formation.rate == oxfw_rate_table[i]) + continue; + + err = avc_general_inquiry_sig_fmt(oxfw->unit, + oxfw_rate_table[i], + dir, pid); + if (err < 0) + continue; + + eid++; + formats[eid] = kmalloc(*len, GFP_KERNEL); + if (formats[eid] == NULL) { + err = -ENOMEM; + goto end; + } + memcpy(formats[eid], buf, *len); + formats[eid][2] = avc_stream_rate_table[i]; + } + + err = 0; + oxfw->assumed = true; +end: + return err; +} + +static int fill_stream_formats(struct snd_oxfw *oxfw, + enum avc_general_plug_dir dir, + unsigned short pid) +{ + u8 *buf, **formats; + unsigned int len, eid = 0; + struct snd_oxfw_stream_formation dummy; + int err; + + buf = kmalloc(AVC_GENERIC_FRAME_MAXIMUM_BYTES, GFP_KERNEL); + if (buf == NULL) + return -ENOMEM; + + if (dir == AVC_GENERAL_PLUG_DIR_OUT) + formats = oxfw->tx_stream_formats; + else + formats = oxfw->rx_stream_formats; + + /* get first entry */ + len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; + err = avc_stream_get_format_list(oxfw->unit, dir, 0, buf, &len, 0); + if (err == -ENOSYS) { + /* LIST subfunction is not implemented */ + len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; + err = assume_stream_formats(oxfw, dir, pid, buf, &len, + formats); + goto end; + } else if (err < 0) { + dev_err(&oxfw->unit->device, + "fail to get stream format %d for isoc %s plug %d:%d\n", + eid, (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : "out", + pid, err); + goto end; + } + + /* LIST subfunction is implemented */ + while (eid < SND_OXFW_STREAM_FORMAT_ENTRIES) { + /* The format is too short. */ + if (len < 3) { + err = -EIO; + break; + } + + /* parse and set stream format */ + err = snd_oxfw_stream_parse_format(buf, &dummy); + if (err < 0) + break; + + formats[eid] = kmalloc(len, GFP_KERNEL); + if (formats[eid] == NULL) { + err = -ENOMEM; + break; + } + memcpy(formats[eid], buf, len); + + /* get next entry */ + len = AVC_GENERIC_FRAME_MAXIMUM_BYTES; + err = avc_stream_get_format_list(oxfw->unit, dir, 0, + buf, &len, ++eid); + /* No entries remained. */ + if (err == -EINVAL) { + err = 0; + break; + } else if (err < 0) { + dev_err(&oxfw->unit->device, + "fail to get stream format %d for isoc %s plug %d:%d\n", + eid, (dir == AVC_GENERAL_PLUG_DIR_IN) ? "in" : + "out", + pid, err); + break; + } + } +end: + kfree(buf); + return err; +} + +int snd_oxfw_stream_discover(struct snd_oxfw *oxfw) +{ + u8 plugs[AVC_PLUG_INFO_BUF_BYTES]; + int err; + + /* the number of plugs for isoc in/out, ext in/out */ + err = avc_general_get_plug_info(oxfw->unit, 0x1f, 0x07, 0x00, plugs); + if (err < 0) { + dev_err(&oxfw->unit->device, + "fail to get info for isoc/external in/out plugs: %d\n", + err); + goto end; + } else if ((plugs[0] == 0) && (plugs[1] == 0)) { + err = -ENOSYS; + goto end; + } + + /* use oPCR[0] if exists */ + if (plugs[1] > 0) { + err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_OUT, 0); + if (err < 0) + goto end; + oxfw->has_output = true; + } + + /* use iPCR[0] if exists */ + if (plugs[0] > 0) + err = fill_stream_formats(oxfw, AVC_GENERAL_PLUG_DIR_IN, 0); +end: + return err; +} + +void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw) +{ + oxfw->dev_lock_changed = true; + wake_up(&oxfw->hwdep_wait); +} + +int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw) +{ + int err; + + spin_lock_irq(&oxfw->lock); + + /* user land lock this */ + if (oxfw->dev_lock_count < 0) { + err = -EBUSY; + goto end; + } + + /* this is the first time */ + if (oxfw->dev_lock_count++ == 0) + snd_oxfw_stream_lock_changed(oxfw); + err = 0; +end: + spin_unlock_irq(&oxfw->lock); + return err; +} + +void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw) +{ + spin_lock_irq(&oxfw->lock); + + if (WARN_ON(oxfw->dev_lock_count <= 0)) + goto end; + if (--oxfw->dev_lock_count == 0) + snd_oxfw_stream_lock_changed(oxfw); +end: + spin_unlock_irq(&oxfw->lock); +} diff --git a/kernel/sound/firewire/oxfw/oxfw.c b/kernel/sound/firewire/oxfw/oxfw.c new file mode 100644 index 000000000..8c6ce019f --- /dev/null +++ b/kernel/sound/firewire/oxfw/oxfw.c @@ -0,0 +1,324 @@ +/* + * oxfw.c - a part of driver for OXFW970/971 based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include "oxfw.h" + +#define OXFORD_FIRMWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x50000) +/* 0x970?vvvv or 0x971?vvvv, where vvvv = firmware version */ + +#define OXFORD_HARDWARE_ID_ADDRESS (CSR_REGISTER_BASE + 0x90020) +#define OXFORD_HARDWARE_ID_OXFW970 0x39443841 +#define OXFORD_HARDWARE_ID_OXFW971 0x39373100 + +#define VENDOR_LOUD 0x000ff2 +#define VENDOR_GRIFFIN 0x001292 +#define VENDOR_BEHRINGER 0x001564 +#define VENDOR_LACIE 0x00d04b + +#define SPECIFIER_1394TA 0x00a02d +#define VERSION_AVC 0x010001 + +MODULE_DESCRIPTION("Oxford Semiconductor FW970/971 driver"); +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("snd-firewire-speakers"); + +static bool detect_loud_models(struct fw_unit *unit) +{ + const char *const models[] = { + "Onyxi", + "Onyx-i", + "d.Pro", + "Mackie Onyx Satellite", + "Tapco LINK.firewire 4x6", + "U.420"}; + char model[32]; + unsigned int i; + int err; + + err = fw_csr_string(unit->directory, CSR_MODEL, + model, sizeof(model)); + if (err < 0) + return false; + + for (i = 0; i < ARRAY_SIZE(models); i++) { + if (strcmp(models[i], model) == 0) + break; + } + + return (i < ARRAY_SIZE(models)); +} + +static int name_card(struct snd_oxfw *oxfw) +{ + struct fw_device *fw_dev = fw_parent_device(oxfw->unit); + char vendor[24]; + char model[32]; + const char *d, *v, *m; + u32 firmware; + int err; + + /* get vendor name from root directory */ + err = fw_csr_string(fw_dev->config_rom + 5, CSR_VENDOR, + vendor, sizeof(vendor)); + if (err < 0) + goto end; + + /* get model name from unit directory */ + err = fw_csr_string(oxfw->unit->directory, CSR_MODEL, + model, sizeof(model)); + if (err < 0) + goto end; + + err = snd_fw_transaction(oxfw->unit, TCODE_READ_QUADLET_REQUEST, + OXFORD_FIRMWARE_ID_ADDRESS, &firmware, 4, 0); + if (err < 0) + goto end; + be32_to_cpus(&firmware); + + /* to apply card definitions */ + if (oxfw->device_info) { + d = oxfw->device_info->driver_name; + v = oxfw->device_info->vendor_name; + m = oxfw->device_info->model_name; + } else { + d = "OXFW"; + v = vendor; + m = model; + } + + strcpy(oxfw->card->driver, d); + strcpy(oxfw->card->mixername, m); + strcpy(oxfw->card->shortname, m); + + snprintf(oxfw->card->longname, sizeof(oxfw->card->longname), + "%s %s (OXFW%x %04x), GUID %08x%08x at %s, S%d", + v, m, firmware >> 20, firmware & 0xffff, + fw_dev->config_rom[3], fw_dev->config_rom[4], + dev_name(&oxfw->unit->device), 100 << fw_dev->max_speed); +end: + return err; +} + +/* + * This module releases the FireWire unit data after all ALSA character devices + * are released by applications. This is for releasing stream data or finishing + * transactions safely. Thus at returning from .remove(), this module still keep + * references for the unit. + */ +static void oxfw_card_free(struct snd_card *card) +{ + struct snd_oxfw *oxfw = card->private_data; + unsigned int i; + + snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream); + if (oxfw->has_output) + snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream); + + fw_unit_put(oxfw->unit); + + for (i = 0; i < SND_OXFW_STREAM_FORMAT_ENTRIES; i++) { + kfree(oxfw->tx_stream_formats[i]); + kfree(oxfw->rx_stream_formats[i]); + } + + mutex_destroy(&oxfw->mutex); +} + +static int oxfw_probe(struct fw_unit *unit, + const struct ieee1394_device_id *id) +{ + struct snd_card *card; + struct snd_oxfw *oxfw; + int err; + + if ((id->vendor_id == VENDOR_LOUD) && !detect_loud_models(unit)) + return -ENODEV; + + err = snd_card_new(&unit->device, -1, NULL, THIS_MODULE, + sizeof(*oxfw), &card); + if (err < 0) + return err; + + card->private_free = oxfw_card_free; + oxfw = card->private_data; + oxfw->card = card; + mutex_init(&oxfw->mutex); + oxfw->unit = fw_unit_get(unit); + oxfw->device_info = (const struct device_info *)id->driver_data; + spin_lock_init(&oxfw->lock); + init_waitqueue_head(&oxfw->hwdep_wait); + + err = snd_oxfw_stream_discover(oxfw); + if (err < 0) + goto error; + + err = name_card(oxfw); + if (err < 0) + goto error; + + err = snd_oxfw_create_pcm(oxfw); + if (err < 0) + goto error; + + if (oxfw->device_info) { + err = snd_oxfw_create_mixer(oxfw); + if (err < 0) + goto error; + } + + snd_oxfw_proc_init(oxfw); + + err = snd_oxfw_create_midi(oxfw); + if (err < 0) + goto error; + + err = snd_oxfw_create_hwdep(oxfw); + if (err < 0) + goto error; + + err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->rx_stream); + if (err < 0) + goto error; + if (oxfw->has_output) { + err = snd_oxfw_stream_init_simplex(oxfw, &oxfw->tx_stream); + if (err < 0) + goto error; + } + + err = snd_card_register(card); + if (err < 0) { + snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->rx_stream); + if (oxfw->has_output) + snd_oxfw_stream_destroy_simplex(oxfw, &oxfw->tx_stream); + goto error; + } + dev_set_drvdata(&unit->device, oxfw); + + return 0; +error: + snd_card_free(card); + return err; +} + +static void oxfw_bus_reset(struct fw_unit *unit) +{ + struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device); + + fcp_bus_reset(oxfw->unit); + + mutex_lock(&oxfw->mutex); + + snd_oxfw_stream_update_simplex(oxfw, &oxfw->rx_stream); + if (oxfw->has_output) + snd_oxfw_stream_update_simplex(oxfw, &oxfw->tx_stream); + + mutex_unlock(&oxfw->mutex); +} + +static void oxfw_remove(struct fw_unit *unit) +{ + struct snd_oxfw *oxfw = dev_get_drvdata(&unit->device); + + /* No need to wait for releasing card object in this context. */ + snd_card_free_when_closed(oxfw->card); +} + +static const struct device_info griffin_firewave = { + .driver_name = "FireWave", + .vendor_name = "Griffin", + .model_name = "FireWave", + .mixer_channels = 6, + .mute_fb_id = 0x01, + .volume_fb_id = 0x02, +}; + +static const struct device_info lacie_speakers = { + .driver_name = "FWSpeakers", + .vendor_name = "LaCie", + .model_name = "FireWire Speakers", + .mixer_channels = 1, + .mute_fb_id = 0x01, + .volume_fb_id = 0x01, +}; + +static const struct ieee1394_device_id oxfw_id_table[] = { + { + .match_flags = IEEE1394_MATCH_VENDOR_ID | + IEEE1394_MATCH_MODEL_ID | + IEEE1394_MATCH_SPECIFIER_ID | + IEEE1394_MATCH_VERSION, + .vendor_id = VENDOR_GRIFFIN, + .model_id = 0x00f970, + .specifier_id = SPECIFIER_1394TA, + .version = VERSION_AVC, + .driver_data = (kernel_ulong_t)&griffin_firewave, + }, + { + .match_flags = IEEE1394_MATCH_VENDOR_ID | + IEEE1394_MATCH_MODEL_ID | + IEEE1394_MATCH_SPECIFIER_ID | + IEEE1394_MATCH_VERSION, + .vendor_id = VENDOR_LACIE, + .model_id = 0x00f970, + .specifier_id = SPECIFIER_1394TA, + .version = VERSION_AVC, + .driver_data = (kernel_ulong_t)&lacie_speakers, + }, + /* Behringer,F-Control Audio 202 */ + { + .match_flags = IEEE1394_MATCH_VENDOR_ID | + IEEE1394_MATCH_MODEL_ID, + .vendor_id = VENDOR_BEHRINGER, + .model_id = 0x00fc22, + }, + /* + * Any Mackie(Loud) models (name string/model id): + * Onyx-i series (former models): 0x081216 + * Mackie Onyx Satellite: 0x00200f + * Tapco LINK.firewire 4x6: 0x000460 + * d.2 pro: Unknown + * d.4 pro: Unknown + * U.420: Unknown + * U.420d: Unknown + */ + { + .match_flags = IEEE1394_MATCH_VENDOR_ID | + IEEE1394_MATCH_SPECIFIER_ID | + IEEE1394_MATCH_VERSION, + .vendor_id = VENDOR_LOUD, + .specifier_id = SPECIFIER_1394TA, + .version = VERSION_AVC, + }, + { } +}; +MODULE_DEVICE_TABLE(ieee1394, oxfw_id_table); + +static struct fw_driver oxfw_driver = { + .driver = { + .owner = THIS_MODULE, + .name = KBUILD_MODNAME, + .bus = &fw_bus_type, + }, + .probe = oxfw_probe, + .update = oxfw_bus_reset, + .remove = oxfw_remove, + .id_table = oxfw_id_table, +}; + +static int __init snd_oxfw_init(void) +{ + return driver_register(&oxfw_driver.driver); +} + +static void __exit snd_oxfw_exit(void) +{ + driver_unregister(&oxfw_driver.driver); +} + +module_init(snd_oxfw_init); +module_exit(snd_oxfw_exit); diff --git a/kernel/sound/firewire/oxfw/oxfw.h b/kernel/sound/firewire/oxfw/oxfw.h new file mode 100644 index 000000000..cace5ad4f --- /dev/null +++ b/kernel/sound/firewire/oxfw/oxfw.h @@ -0,0 +1,146 @@ +/* + * oxfw.h - a part of driver for OXFW970/971 based devices + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/firewire-constants.h> +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/mutex.h> +#include <linux/slab.h> +#include <linux/compat.h> + +#include <sound/control.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/info.h> +#include <sound/rawmidi.h> +#include <sound/firewire.h> +#include <sound/hwdep.h> + +#include "../lib.h" +#include "../fcp.h" +#include "../packets-buffer.h" +#include "../iso-resources.h" +#include "../amdtp.h" +#include "../cmp.h" + +struct device_info { + const char *driver_name; + const char *vendor_name; + const char *model_name; + unsigned int mixer_channels; + u8 mute_fb_id; + u8 volume_fb_id; +}; + +/* This is an arbitrary number for convinience. */ +#define SND_OXFW_STREAM_FORMAT_ENTRIES 10 +struct snd_oxfw { + struct snd_card *card; + struct fw_unit *unit; + const struct device_info *device_info; + struct mutex mutex; + spinlock_t lock; + + bool has_output; + u8 *tx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; + u8 *rx_stream_formats[SND_OXFW_STREAM_FORMAT_ENTRIES]; + bool assumed; + struct cmp_connection out_conn; + struct cmp_connection in_conn; + struct amdtp_stream tx_stream; + struct amdtp_stream rx_stream; + unsigned int capture_substreams; + unsigned int playback_substreams; + + unsigned int midi_input_ports; + unsigned int midi_output_ports; + + bool mute; + s16 volume[6]; + s16 volume_min; + s16 volume_max; + + int dev_lock_count; + bool dev_lock_changed; + wait_queue_head_t hwdep_wait; +}; + +/* + * AV/C Stream Format Information Specification 1.1 Working Draft + * (Apr 2005, 1394TA) + */ +int avc_stream_set_format(struct fw_unit *unit, enum avc_general_plug_dir dir, + unsigned int pid, u8 *format, unsigned int len); +int avc_stream_get_format(struct fw_unit *unit, + enum avc_general_plug_dir dir, unsigned int pid, + u8 *buf, unsigned int *len, unsigned int eid); +static inline int +avc_stream_get_format_single(struct fw_unit *unit, + enum avc_general_plug_dir dir, unsigned int pid, + u8 *buf, unsigned int *len) +{ + return avc_stream_get_format(unit, dir, pid, buf, len, 0xff); +} +static inline int +avc_stream_get_format_list(struct fw_unit *unit, + enum avc_general_plug_dir dir, unsigned int pid, + u8 *buf, unsigned int *len, + unsigned int eid) +{ + return avc_stream_get_format(unit, dir, pid, buf, len, eid); +} + +/* + * AV/C Digital Interface Command Set General Specification 4.2 + * (Sep 2004, 1394TA) + */ +int avc_general_inquiry_sig_fmt(struct fw_unit *unit, unsigned int rate, + enum avc_general_plug_dir dir, + unsigned short pid); + +int snd_oxfw_stream_init_simplex(struct snd_oxfw *oxfw, + struct amdtp_stream *stream); +int snd_oxfw_stream_start_simplex(struct snd_oxfw *oxfw, + struct amdtp_stream *stream, + unsigned int rate, unsigned int pcm_channels); +void snd_oxfw_stream_stop_simplex(struct snd_oxfw *oxfw, + struct amdtp_stream *stream); +void snd_oxfw_stream_destroy_simplex(struct snd_oxfw *oxfw, + struct amdtp_stream *stream); +void snd_oxfw_stream_update_simplex(struct snd_oxfw *oxfw, + struct amdtp_stream *stream); + +struct snd_oxfw_stream_formation { + unsigned int rate; + unsigned int pcm; + unsigned int midi; +}; +int snd_oxfw_stream_parse_format(u8 *format, + struct snd_oxfw_stream_formation *formation); +int snd_oxfw_stream_get_current_formation(struct snd_oxfw *oxfw, + enum avc_general_plug_dir dir, + struct snd_oxfw_stream_formation *formation); + +int snd_oxfw_stream_discover(struct snd_oxfw *oxfw); + +void snd_oxfw_stream_lock_changed(struct snd_oxfw *oxfw); +int snd_oxfw_stream_lock_try(struct snd_oxfw *oxfw); +void snd_oxfw_stream_lock_release(struct snd_oxfw *oxfw); + +int snd_oxfw_create_pcm(struct snd_oxfw *oxfw); + +int snd_oxfw_create_mixer(struct snd_oxfw *oxfw); + +void snd_oxfw_proc_init(struct snd_oxfw *oxfw); + +int snd_oxfw_create_midi(struct snd_oxfw *oxfw); + +int snd_oxfw_create_hwdep(struct snd_oxfw *oxfw); diff --git a/kernel/sound/firewire/packets-buffer.c b/kernel/sound/firewire/packets-buffer.c new file mode 100644 index 000000000..ea1506679 --- /dev/null +++ b/kernel/sound/firewire/packets-buffer.c @@ -0,0 +1,77 @@ +/* + * helpers for managing a buffer for many packets + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include <linux/firewire.h> +#include <linux/export.h> +#include <linux/slab.h> +#include "packets-buffer.h" + +/** + * iso_packets_buffer_init - allocates the memory for packets + * @b: the buffer structure to initialize + * @unit: the device at the other end of the stream + * @count: the number of packets + * @packet_size: the (maximum) size of a packet, in bytes + * @direction: %DMA_TO_DEVICE or %DMA_FROM_DEVICE + */ +int iso_packets_buffer_init(struct iso_packets_buffer *b, struct fw_unit *unit, + unsigned int count, unsigned int packet_size, + enum dma_data_direction direction) +{ + unsigned int packets_per_page, pages; + unsigned int i, page_index, offset_in_page; + void *p; + int err; + + b->packets = kmalloc(count * sizeof(*b->packets), GFP_KERNEL); + if (!b->packets) { + err = -ENOMEM; + goto error; + } + + packet_size = L1_CACHE_ALIGN(packet_size); + packets_per_page = PAGE_SIZE / packet_size; + if (WARN_ON(!packets_per_page)) { + err = -EINVAL; + goto error; + } + pages = DIV_ROUND_UP(count, packets_per_page); + + err = fw_iso_buffer_init(&b->iso_buffer, fw_parent_device(unit)->card, + pages, direction); + if (err < 0) + goto err_packets; + + for (i = 0; i < count; ++i) { + page_index = i / packets_per_page; + p = page_address(b->iso_buffer.pages[page_index]); + offset_in_page = (i % packets_per_page) * packet_size; + b->packets[i].buffer = p + offset_in_page; + b->packets[i].offset = page_index * PAGE_SIZE + offset_in_page; + } + + return 0; + +err_packets: + kfree(b->packets); +error: + return err; +} +EXPORT_SYMBOL(iso_packets_buffer_init); + +/** + * iso_packets_buffer_destroy - frees packet buffer resources + * @b: the buffer structure to free + * @unit: the device at the other end of the stream + */ +void iso_packets_buffer_destroy(struct iso_packets_buffer *b, + struct fw_unit *unit) +{ + fw_iso_buffer_destroy(&b->iso_buffer, fw_parent_device(unit)->card); + kfree(b->packets); +} +EXPORT_SYMBOL(iso_packets_buffer_destroy); diff --git a/kernel/sound/firewire/packets-buffer.h b/kernel/sound/firewire/packets-buffer.h new file mode 100644 index 000000000..6513c5cb6 --- /dev/null +++ b/kernel/sound/firewire/packets-buffer.h @@ -0,0 +1,26 @@ +#ifndef SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED +#define SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED + +#include <linux/dma-mapping.h> +#include <linux/firewire.h> + +/** + * struct iso_packets_buffer - manages a buffer for many packets + * @iso_buffer: the memory containing the packets + * @packets: an array, with each element pointing to one packet + */ +struct iso_packets_buffer { + struct fw_iso_buffer iso_buffer; + struct { + void *buffer; + unsigned int offset; + } *packets; +}; + +int iso_packets_buffer_init(struct iso_packets_buffer *b, struct fw_unit *unit, + unsigned int count, unsigned int packet_size, + enum dma_data_direction direction); +void iso_packets_buffer_destroy(struct iso_packets_buffer *b, + struct fw_unit *unit); + +#endif diff --git a/kernel/sound/firewire/scs1x.c b/kernel/sound/firewire/scs1x.c new file mode 100644 index 000000000..2dba848a7 --- /dev/null +++ b/kernel/sound/firewire/scs1x.c @@ -0,0 +1,530 @@ +/* + * Stanton Control System 1 MIDI driver + * + * Copyright (c) Clemens Ladisch <clemens@ladisch.de> + * Licensed under the terms of the GNU General Public License, version 2. + */ + +#include <linux/device.h> +#include <linux/firewire.h> +#include <linux/firewire-constants.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/mod_devicetable.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/wait.h> +#include <sound/core.h> +#include <sound/initval.h> +#include <sound/rawmidi.h> +#include "lib.h" + +#define OUI_STANTON 0x001260 +#define MODEL_SCS_1M 0x001000 +#define MODEL_SCS_1D 0x002000 + +#define HSS1394_ADDRESS 0xc007dedadadaULL +#define HSS1394_MAX_PACKET_SIZE 64 + +#define HSS1394_TAG_USER_DATA 0x00 +#define HSS1394_TAG_CHANGE_ADDRESS 0xf1 + +struct scs { + struct snd_card *card; + struct fw_unit *unit; + struct fw_address_handler hss_handler; + struct fw_transaction transaction; + bool transaction_running; + bool output_idle; + u8 output_status; + u8 output_bytes; + bool output_escaped; + bool output_escape_high_nibble; + u8 input_escape_count; + struct snd_rawmidi_substream *output; + struct snd_rawmidi_substream *input; + struct tasklet_struct tasklet; + wait_queue_head_t idle_wait; + u8 *buffer; +}; + +static const u8 sysex_escape_prefix[] = { + 0xf0, /* SysEx begin */ + 0x00, 0x01, 0x60, /* Stanton DJ */ + 0x48, 0x53, 0x53, /* "HSS" */ +}; + +static int scs_output_open(struct snd_rawmidi_substream *stream) +{ + struct scs *scs = stream->rmidi->private_data; + + scs->output_status = 0; + scs->output_bytes = 1; + scs->output_escaped = false; + + return 0; +} + +static int scs_output_close(struct snd_rawmidi_substream *stream) +{ + return 0; +} + +static void scs_output_trigger(struct snd_rawmidi_substream *stream, int up) +{ + struct scs *scs = stream->rmidi->private_data; + + ACCESS_ONCE(scs->output) = up ? stream : NULL; + if (up) { + scs->output_idle = false; + tasklet_schedule(&scs->tasklet); + } +} + +static void scs_write_callback(struct fw_card *card, int rcode, + void *data, size_t length, void *callback_data) +{ + struct scs *scs = callback_data; + + if (rcode == RCODE_GENERATION) { + /* TODO: retry this packet */ + } + + scs->transaction_running = false; + tasklet_schedule(&scs->tasklet); +} + +static bool is_valid_running_status(u8 status) +{ + return status >= 0x80 && status <= 0xef; +} + +static bool is_one_byte_cmd(u8 status) +{ + return status == 0xf6 || + status >= 0xf8; +} + +static bool is_two_bytes_cmd(u8 status) +{ + return (status >= 0xc0 && status <= 0xdf) || + status == 0xf1 || + status == 0xf3; +} + +static bool is_three_bytes_cmd(u8 status) +{ + return (status >= 0x80 && status <= 0xbf) || + (status >= 0xe0 && status <= 0xef) || + status == 0xf2; +} + +static bool is_invalid_cmd(u8 status) +{ + return status == 0xf4 || + status == 0xf5 || + status == 0xf9 || + status == 0xfd; +} + +static void scs_output_tasklet(unsigned long data) +{ + struct scs *scs = (void *)data; + struct snd_rawmidi_substream *stream; + unsigned int i; + u8 byte; + struct fw_device *dev; + int generation; + + if (scs->transaction_running) + return; + + stream = ACCESS_ONCE(scs->output); + if (!stream) { + scs->output_idle = true; + wake_up(&scs->idle_wait); + return; + } + + i = scs->output_bytes; + for (;;) { + if (snd_rawmidi_transmit(stream, &byte, 1) != 1) { + scs->output_bytes = i; + scs->output_idle = true; + wake_up(&scs->idle_wait); + return; + } + /* + * Convert from real MIDI to what I think the device expects (no + * running status, one command per packet, unescaped SysExs). + */ + if (scs->output_escaped && byte < 0x80) { + if (scs->output_escape_high_nibble) { + if (i < HSS1394_MAX_PACKET_SIZE) { + scs->buffer[i] = byte << 4; + scs->output_escape_high_nibble = false; + } + } else { + scs->buffer[i++] |= byte & 0x0f; + scs->output_escape_high_nibble = true; + } + } else if (byte < 0x80) { + if (i == 1) { + if (!is_valid_running_status(scs->output_status)) + continue; + scs->buffer[0] = HSS1394_TAG_USER_DATA; + scs->buffer[i++] = scs->output_status; + } + scs->buffer[i++] = byte; + if ((i == 3 && is_two_bytes_cmd(scs->output_status)) || + (i == 4 && is_three_bytes_cmd(scs->output_status))) + break; + if (i == 1 + ARRAY_SIZE(sysex_escape_prefix) && + !memcmp(scs->buffer + 1, sysex_escape_prefix, + ARRAY_SIZE(sysex_escape_prefix))) { + scs->output_escaped = true; + scs->output_escape_high_nibble = true; + i = 0; + } + if (i >= HSS1394_MAX_PACKET_SIZE) + i = 1; + } else if (byte == 0xf7) { + if (scs->output_escaped) { + if (i >= 1 && scs->output_escape_high_nibble && + scs->buffer[0] != HSS1394_TAG_CHANGE_ADDRESS) + break; + } else { + if (i > 1 && scs->output_status == 0xf0) { + scs->buffer[i++] = 0xf7; + break; + } + } + i = 1; + scs->output_escaped = false; + } else if (!is_invalid_cmd(byte) && + byte < 0xf8) { + i = 1; + scs->buffer[0] = HSS1394_TAG_USER_DATA; + scs->buffer[i++] = byte; + scs->output_status = byte; + scs->output_escaped = false; + if (is_one_byte_cmd(byte)) + break; + } + } + scs->output_bytes = 1; + scs->output_escaped = false; + + scs->transaction_running = true; + dev = fw_parent_device(scs->unit); + generation = dev->generation; + smp_rmb(); /* node_id vs. generation */ + fw_send_request(dev->card, &scs->transaction, TCODE_WRITE_BLOCK_REQUEST, + dev->node_id, generation, dev->max_speed, + HSS1394_ADDRESS, scs->buffer, i, + scs_write_callback, scs); +} + +static void scs_output_drain(struct snd_rawmidi_substream *stream) +{ + struct scs *scs = stream->rmidi->private_data; + + wait_event(scs->idle_wait, scs->output_idle); +} + +static struct snd_rawmidi_ops output_ops = { + .open = scs_output_open, + .close = scs_output_close, + .trigger = scs_output_trigger, + .drain = scs_output_drain, +}; + +static int scs_input_open(struct snd_rawmidi_substream *stream) +{ + struct scs *scs = stream->rmidi->private_data; + + scs->input_escape_count = 0; + + return 0; +} + +static int scs_input_close(struct snd_rawmidi_substream *stream) +{ + return 0; +} + +static void scs_input_trigger(struct snd_rawmidi_substream *stream, int up) +{ + struct scs *scs = stream->rmidi->private_data; + + ACCESS_ONCE(scs->input) = up ? stream : NULL; +} + +static void scs_input_escaped_byte(struct snd_rawmidi_substream *stream, + u8 byte) +{ + u8 nibbles[2]; + + nibbles[0] = byte >> 4; + nibbles[1] = byte & 0x0f; + snd_rawmidi_receive(stream, nibbles, 2); +} + +static void scs_input_midi_byte(struct scs *scs, + struct snd_rawmidi_substream *stream, + u8 byte) +{ + if (scs->input_escape_count > 0) { + scs_input_escaped_byte(stream, byte); + scs->input_escape_count--; + if (scs->input_escape_count == 0) + snd_rawmidi_receive(stream, (const u8[]) { 0xf7 }, 1); + } else if (byte == 0xf9) { + snd_rawmidi_receive(stream, sysex_escape_prefix, + ARRAY_SIZE(sysex_escape_prefix)); + scs_input_escaped_byte(stream, 0x00); + scs_input_escaped_byte(stream, 0xf9); + scs->input_escape_count = 3; + } else { + snd_rawmidi_receive(stream, &byte, 1); + } +} + +static void scs_input_packet(struct scs *scs, + struct snd_rawmidi_substream *stream, + const u8 *data, unsigned int bytes) +{ + unsigned int i; + + if (data[0] == HSS1394_TAG_USER_DATA) { + for (i = 1; i < bytes; ++i) + scs_input_midi_byte(scs, stream, data[i]); + } else { + snd_rawmidi_receive(stream, sysex_escape_prefix, + ARRAY_SIZE(sysex_escape_prefix)); + for (i = 0; i < bytes; ++i) + scs_input_escaped_byte(stream, data[i]); + snd_rawmidi_receive(stream, (const u8[]) { 0xf7 }, 1); + } +} + +static struct snd_rawmidi_ops input_ops = { + .open = scs_input_open, + .close = scs_input_close, + .trigger = scs_input_trigger, +}; + +static int scs_create_midi(struct scs *scs) +{ + struct snd_rawmidi *rmidi; + int err; + + err = snd_rawmidi_new(scs->card, "SCS.1x", 0, 1, 1, &rmidi); + if (err < 0) + return err; + snprintf(rmidi->name, sizeof(rmidi->name), + "%s MIDI", scs->card->shortname); + rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | + SNDRV_RAWMIDI_INFO_INPUT | + SNDRV_RAWMIDI_INFO_DUPLEX; + rmidi->private_data = scs; + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &output_ops); + snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &input_ops); + + return 0; +} + +static void handle_hss(struct fw_card *card, struct fw_request *request, + int tcode, int destination, int source, int generation, + unsigned long long offset, void *data, size_t length, + void *callback_data) +{ + struct scs *scs = callback_data; + struct snd_rawmidi_substream *stream; + + if (offset != scs->hss_handler.offset) { + fw_send_response(card, request, RCODE_ADDRESS_ERROR); + return; + } + if (tcode != TCODE_WRITE_QUADLET_REQUEST && + tcode != TCODE_WRITE_BLOCK_REQUEST) { + fw_send_response(card, request, RCODE_TYPE_ERROR); + return; + } + + if (length >= 1) { + stream = ACCESS_ONCE(scs->input); + if (stream) + scs_input_packet(scs, stream, data, length); + } + + fw_send_response(card, request, RCODE_COMPLETE); +} + +static int scs_init_hss_address(struct scs *scs) +{ + __be64 data; + int err; + + data = cpu_to_be64(((u64)HSS1394_TAG_CHANGE_ADDRESS << 56) | + scs->hss_handler.offset); + err = snd_fw_transaction(scs->unit, TCODE_WRITE_BLOCK_REQUEST, + HSS1394_ADDRESS, &data, 8, 0); + if (err < 0) + dev_err(&scs->unit->device, "HSS1394 communication failed\n"); + + return err; +} + +static void scs_card_free(struct snd_card *card) +{ + struct scs *scs = card->private_data; + + fw_core_remove_address_handler(&scs->hss_handler); + kfree(scs->buffer); +} + +static int scs_probe(struct fw_unit *unit, const struct ieee1394_device_id *id) +{ + struct fw_device *fw_dev = fw_parent_device(unit); + struct snd_card *card; + struct scs *scs; + int err; + + err = snd_card_new(&unit->device, -16, NULL, THIS_MODULE, + sizeof(*scs), &card); + if (err < 0) + return err; + + scs = card->private_data; + scs->card = card; + scs->unit = unit; + tasklet_init(&scs->tasklet, scs_output_tasklet, (unsigned long)scs); + init_waitqueue_head(&scs->idle_wait); + scs->output_idle = true; + + scs->buffer = kmalloc(HSS1394_MAX_PACKET_SIZE, GFP_KERNEL); + if (!scs->buffer) { + err = -ENOMEM; + goto err_card; + } + + scs->hss_handler.length = HSS1394_MAX_PACKET_SIZE; + scs->hss_handler.address_callback = handle_hss; + scs->hss_handler.callback_data = scs; + err = fw_core_add_address_handler(&scs->hss_handler, + &fw_high_memory_region); + if (err < 0) + goto err_buffer; + + card->private_free = scs_card_free; + + strcpy(card->driver, "SCS.1x"); + strcpy(card->shortname, "SCS.1x"); + fw_csr_string(unit->directory, CSR_MODEL, + card->shortname, sizeof(card->shortname)); + snprintf(card->longname, sizeof(card->longname), + "Stanton DJ %s (GUID %08x%08x) at %s, S%d", + card->shortname, fw_dev->config_rom[3], fw_dev->config_rom[4], + dev_name(&unit->device), 100 << fw_dev->max_speed); + strcpy(card->mixername, card->shortname); + + err = scs_init_hss_address(scs); + if (err < 0) + goto err_card; + + err = scs_create_midi(scs); + if (err < 0) + goto err_card; + + err = snd_card_register(card); + if (err < 0) + goto err_card; + + dev_set_drvdata(&unit->device, scs); + + return 0; + +err_buffer: + kfree(scs->buffer); +err_card: + snd_card_free(card); + return err; +} + +static void scs_update(struct fw_unit *unit) +{ + struct scs *scs = dev_get_drvdata(&unit->device); + int generation; + __be64 data; + + data = cpu_to_be64(((u64)HSS1394_TAG_CHANGE_ADDRESS << 56) | + scs->hss_handler.offset); + generation = fw_parent_device(unit)->generation; + smp_rmb(); /* node_id vs. generation */ + snd_fw_transaction(scs->unit, TCODE_WRITE_BLOCK_REQUEST, + HSS1394_ADDRESS, &data, 8, + FW_FIXED_GENERATION | generation); +} + +static void scs_remove(struct fw_unit *unit) +{ + struct scs *scs = dev_get_drvdata(&unit->device); + + snd_card_disconnect(scs->card); + + ACCESS_ONCE(scs->output) = NULL; + ACCESS_ONCE(scs->input) = NULL; + + wait_event(scs->idle_wait, scs->output_idle); + + tasklet_kill(&scs->tasklet); + + snd_card_free_when_closed(scs->card); +} + +static const struct ieee1394_device_id scs_id_table[] = { + { + .match_flags = IEEE1394_MATCH_VENDOR_ID | + IEEE1394_MATCH_MODEL_ID, + .vendor_id = OUI_STANTON, + .model_id = MODEL_SCS_1M, + }, + { + .match_flags = IEEE1394_MATCH_VENDOR_ID | + IEEE1394_MATCH_MODEL_ID, + .vendor_id = OUI_STANTON, + .model_id = MODEL_SCS_1D, + }, + {} +}; +MODULE_DEVICE_TABLE(ieee1394, scs_id_table); + +MODULE_DESCRIPTION("SCS.1x MIDI driver"); +MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); +MODULE_LICENSE("GPL v2"); + +static struct fw_driver scs_driver = { + .driver = { + .owner = THIS_MODULE, + .name = KBUILD_MODNAME, + .bus = &fw_bus_type, + }, + .probe = scs_probe, + .update = scs_update, + .remove = scs_remove, + .id_table = scs_id_table, +}; + +static int __init alsa_scs1x_init(void) +{ + return driver_register(&scs_driver.driver); +} + +static void __exit alsa_scs1x_exit(void) +{ + driver_unregister(&scs_driver.driver); +} + +module_init(alsa_scs1x_init); +module_exit(alsa_scs1x_exit); |