diff options
Diffstat (limited to 'kernel/sound/pci/asihpi/asihpi.c')
| -rw-r--r-- | kernel/sound/pci/asihpi/asihpi.c | 3060 |
1 files changed, 3060 insertions, 0 deletions
diff --git a/kernel/sound/pci/asihpi/asihpi.c b/kernel/sound/pci/asihpi/asihpi.c new file mode 100644 index 000000000..1039eccbb --- /dev/null +++ b/kernel/sound/pci/asihpi/asihpi.c @@ -0,0 +1,3060 @@ +/* + * Asihpi soundcard + * Copyright (c) by AudioScience Inc <support@audioscience.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation; + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * + * The following is not a condition of use, merely a request: + * If you modify this program, particularly if you fix errors, AudioScience Inc + * would appreciate it if you grant us the right to use those modifications + * for any purpose including commercial applications. + */ + +#include "hpi_internal.h" +#include "hpi_version.h" +#include "hpimsginit.h" +#include "hpioctl.h" +#include "hpicmn.h" + +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/jiffies.h> +#include <linux/slab.h> +#include <linux/time.h> +#include <linux/wait.h> +#include <linux/module.h> +#include <sound/core.h> +#include <sound/control.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/info.h> +#include <sound/initval.h> +#include <sound/tlv.h> +#include <sound/hwdep.h> + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("AudioScience inc. <support@audioscience.com>"); +MODULE_DESCRIPTION("AudioScience ALSA ASI5xxx ASI6xxx ASI87xx ASI89xx " + HPI_VER_STRING); + +#if defined CONFIG_SND_DEBUG_VERBOSE +/** + * snd_printddd - very verbose debug printk + * @format: format string + * + * Works like snd_printk() for debugging purposes. + * Ignored when CONFIG_SND_DEBUG_VERBOSE is not set. + * Must set snd module debug parameter to 3 to enable at runtime. + */ +#define snd_printddd(format, args...) \ + __snd_printk(3, __FILE__, __LINE__, format, ##args) +#else +#define snd_printddd(format, args...) do { } while (0) +#endif + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* index 0-MAX */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ +static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; +static bool enable_hpi_hwdep = 1; + +module_param_array(index, int, NULL, S_IRUGO); +MODULE_PARM_DESC(index, "ALSA index value for AudioScience soundcard."); + +module_param_array(id, charp, NULL, S_IRUGO); +MODULE_PARM_DESC(id, "ALSA ID string for AudioScience soundcard."); + +module_param_array(enable, bool, NULL, S_IRUGO); +MODULE_PARM_DESC(enable, "ALSA enable AudioScience soundcard."); + +module_param(enable_hpi_hwdep, bool, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(enable_hpi_hwdep, + "ALSA enable HPI hwdep for AudioScience soundcard "); + +/* identify driver */ +#ifdef KERNEL_ALSA_BUILD +static char *build_info = "Built using headers from kernel source"; +module_param(build_info, charp, S_IRUGO); +MODULE_PARM_DESC(build_info, "Built using headers from kernel source"); +#else +static char *build_info = "Built within ALSA source"; +module_param(build_info, charp, S_IRUGO); +MODULE_PARM_DESC(build_info, "Built within ALSA source"); +#endif + +/* set to 1 to dump every control from adapter to log */ +static const int mixer_dump; + +#define DEFAULT_SAMPLERATE 44100 +static int adapter_fs = DEFAULT_SAMPLERATE; + +/* defaults */ +#define PERIODS_MIN 2 +#define PERIOD_BYTES_MIN 2048 +#define BUFFER_BYTES_MAX (512 * 1024) + +#define MAX_CLOCKSOURCES (HPI_SAMPLECLOCK_SOURCE_LAST + 1 + 7) + +struct clk_source { + int source; + int index; + const char *name; +}; + +struct clk_cache { + int count; + int has_local; + struct clk_source s[MAX_CLOCKSOURCES]; +}; + +/* Per card data */ +struct snd_card_asihpi { + struct snd_card *card; + struct pci_dev *pci; + struct hpi_adapter *hpi; + + /* In low latency mode there is only one stream, a pointer to its + * private data is stored here on trigger and cleared on stop. + * The interrupt handler uses it as a parameter when calling + * snd_card_asihpi_timer_function(). + */ + struct snd_card_asihpi_pcm *llmode_streampriv; + struct tasklet_struct t; + void (*pcm_start)(struct snd_pcm_substream *substream); + void (*pcm_stop)(struct snd_pcm_substream *substream); + + u32 h_mixer; + struct clk_cache cc; + + u16 can_dma; + u16 support_grouping; + u16 support_mrx; + u16 update_interval_frames; + u16 in_max_chans; + u16 out_max_chans; + u16 in_min_chans; + u16 out_min_chans; +}; + +/* Per stream data */ +struct snd_card_asihpi_pcm { + struct timer_list timer; + unsigned int respawn_timer; + unsigned int hpi_buffer_attached; + unsigned int buffer_bytes; + unsigned int period_bytes; + unsigned int bytes_per_sec; + unsigned int pcm_buf_host_rw_ofs; /* Host R/W pos */ + unsigned int pcm_buf_dma_ofs; /* DMA R/W offset in buffer */ + unsigned int pcm_buf_elapsed_dma_ofs; /* DMA R/W offset in buffer */ + unsigned int drained_count; + struct snd_pcm_substream *substream; + u32 h_stream; + struct hpi_format format; +}; + +/* universal stream verbs work with out or in stream handles */ + +/* Functions to allow driver to give a buffer to HPI for busmastering */ + +static u16 hpi_stream_host_buffer_attach( + u32 h_stream, /* handle to outstream. */ + u32 size_in_bytes, /* size in bytes of bus mastering buffer */ + u32 pci_address +) +{ + struct hpi_message hm; + struct hpi_response hr; + unsigned int obj = hpi_handle_object(h_stream); + + if (!h_stream) + return HPI_ERROR_INVALID_OBJ; + hpi_init_message_response(&hm, &hr, obj, + obj == HPI_OBJ_OSTREAM ? + HPI_OSTREAM_HOSTBUFFER_ALLOC : + HPI_ISTREAM_HOSTBUFFER_ALLOC); + + hpi_handle_to_indexes(h_stream, &hm.adapter_index, + &hm.obj_index); + + hm.u.d.u.buffer.buffer_size = size_in_bytes; + hm.u.d.u.buffer.pci_address = pci_address; + hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_GRANTADAPTER; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +static u16 hpi_stream_host_buffer_detach(u32 h_stream) +{ + struct hpi_message hm; + struct hpi_response hr; + unsigned int obj = hpi_handle_object(h_stream); + + if (!h_stream) + return HPI_ERROR_INVALID_OBJ; + + hpi_init_message_response(&hm, &hr, obj, + obj == HPI_OBJ_OSTREAM ? + HPI_OSTREAM_HOSTBUFFER_FREE : + HPI_ISTREAM_HOSTBUFFER_FREE); + + hpi_handle_to_indexes(h_stream, &hm.adapter_index, + &hm.obj_index); + hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_REVOKEADAPTER; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +static inline u16 hpi_stream_start(u32 h_stream) +{ + if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM) + return hpi_outstream_start(h_stream); + else + return hpi_instream_start(h_stream); +} + +static inline u16 hpi_stream_stop(u32 h_stream) +{ + if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM) + return hpi_outstream_stop(h_stream); + else + return hpi_instream_stop(h_stream); +} + +static inline u16 hpi_stream_get_info_ex( + u32 h_stream, + u16 *pw_state, + u32 *pbuffer_size, + u32 *pdata_in_buffer, + u32 *psample_count, + u32 *pauxiliary_data +) +{ + u16 e; + if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM) + e = hpi_outstream_get_info_ex(h_stream, pw_state, + pbuffer_size, pdata_in_buffer, + psample_count, pauxiliary_data); + else + e = hpi_instream_get_info_ex(h_stream, pw_state, + pbuffer_size, pdata_in_buffer, + psample_count, pauxiliary_data); + return e; +} + +static inline u16 hpi_stream_group_add( + u32 h_master, + u32 h_stream) +{ + if (hpi_handle_object(h_master) == HPI_OBJ_OSTREAM) + return hpi_outstream_group_add(h_master, h_stream); + else + return hpi_instream_group_add(h_master, h_stream); +} + +static inline u16 hpi_stream_group_reset(u32 h_stream) +{ + if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM) + return hpi_outstream_group_reset(h_stream); + else + return hpi_instream_group_reset(h_stream); +} + +static inline u16 hpi_stream_group_get_map( + u32 h_stream, u32 *mo, u32 *mi) +{ + if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM) + return hpi_outstream_group_get_map(h_stream, mo, mi); + else + return hpi_instream_group_get_map(h_stream, mo, mi); +} + +static u16 handle_error(u16 err, int line, char *filename) +{ + if (err) + printk(KERN_WARNING + "in file %s, line %d: HPI error %d\n", + filename, line, err); + return err; +} + +#define hpi_handle_error(x) handle_error(x, __LINE__, __FILE__) + +/***************************** GENERAL PCM ****************/ + +static void print_hwparams(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *p) +{ + char name[16]; + snd_pcm_debug_name(substream, name, sizeof(name)); + snd_printdd("%s HWPARAMS\n", name); + snd_printdd(" samplerate=%dHz channels=%d format=%d subformat=%d\n", + params_rate(p), params_channels(p), + params_format(p), params_subformat(p)); + snd_printdd(" buffer=%dB period=%dB period_size=%dB periods=%d\n", + params_buffer_bytes(p), params_period_bytes(p), + params_period_size(p), params_periods(p)); + snd_printdd(" buffer_size=%d access=%d data_rate=%dB/s\n", + params_buffer_size(p), params_access(p), + params_rate(p) * params_channels(p) * + snd_pcm_format_width(params_format(p)) / 8); +} + +static snd_pcm_format_t hpi_to_alsa_formats[] = { + -1, /* INVALID */ + SNDRV_PCM_FORMAT_U8, /* HPI_FORMAT_PCM8_UNSIGNED 1 */ + SNDRV_PCM_FORMAT_S16, /* HPI_FORMAT_PCM16_SIGNED 2 */ + -1, /* HPI_FORMAT_MPEG_L1 3 */ + SNDRV_PCM_FORMAT_MPEG, /* HPI_FORMAT_MPEG_L2 4 */ + SNDRV_PCM_FORMAT_MPEG, /* HPI_FORMAT_MPEG_L3 5 */ + -1, /* HPI_FORMAT_DOLBY_AC2 6 */ + -1, /* HPI_FORMAT_DOLBY_AC3 7 */ + SNDRV_PCM_FORMAT_S16_BE,/* HPI_FORMAT_PCM16_BIGENDIAN 8 */ + -1, /* HPI_FORMAT_AA_TAGIT1_HITS 9 */ + -1, /* HPI_FORMAT_AA_TAGIT1_INSERTS 10 */ + SNDRV_PCM_FORMAT_S32, /* HPI_FORMAT_PCM32_SIGNED 11 */ + -1, /* HPI_FORMAT_RAW_BITSTREAM 12 */ + -1, /* HPI_FORMAT_AA_TAGIT1_HITS_EX1 13 */ + SNDRV_PCM_FORMAT_FLOAT, /* HPI_FORMAT_PCM32_FLOAT 14 */ +#if 1 + /* ALSA can't handle 3 byte sample size together with power-of-2 + * constraint on buffer_bytes, so disable this format + */ + -1 +#else + /* SNDRV_PCM_FORMAT_S24_3LE */ /* HPI_FORMAT_PCM24_SIGNED 15 */ +#endif +}; + + +static int snd_card_asihpi_format_alsa2hpi(snd_pcm_format_t alsa_format, + u16 *hpi_format) +{ + u16 format; + + for (format = HPI_FORMAT_PCM8_UNSIGNED; + format <= HPI_FORMAT_PCM24_SIGNED; format++) { + if (hpi_to_alsa_formats[format] == alsa_format) { + *hpi_format = format; + return 0; + } + } + + snd_printd(KERN_WARNING "failed match for alsa format %d\n", + alsa_format); + *hpi_format = 0; + return -EINVAL; +} + +static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi, + struct snd_pcm_hardware *pcmhw) +{ + u16 err; + u32 h_control; + u32 sample_rate; + int idx; + unsigned int rate_min = 200000; + unsigned int rate_max = 0; + unsigned int rates = 0; + + if (asihpi->support_mrx) { + rates |= SNDRV_PCM_RATE_CONTINUOUS; + rates |= SNDRV_PCM_RATE_8000_96000; + rate_min = 8000; + rate_max = 100000; + } else { + /* on cards without SRC, + valid rates are determined by sampleclock */ + err = hpi_mixer_get_control(asihpi->h_mixer, + HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0, + HPI_CONTROL_SAMPLECLOCK, &h_control); + if (err) { + dev_err(&asihpi->pci->dev, + "No local sampleclock, err %d\n", err); + } + + for (idx = -1; idx < 100; idx++) { + if (idx == -1) { + if (hpi_sample_clock_get_sample_rate(h_control, + &sample_rate)) + continue; + } else if (hpi_sample_clock_query_local_rate(h_control, + idx, &sample_rate)) { + break; + } + + rate_min = min(rate_min, sample_rate); + rate_max = max(rate_max, sample_rate); + + switch (sample_rate) { + case 5512: + rates |= SNDRV_PCM_RATE_5512; + break; + case 8000: + rates |= SNDRV_PCM_RATE_8000; + break; + case 11025: + rates |= SNDRV_PCM_RATE_11025; + break; + case 16000: + rates |= SNDRV_PCM_RATE_16000; + break; + case 22050: + rates |= SNDRV_PCM_RATE_22050; + break; + case 32000: + rates |= SNDRV_PCM_RATE_32000; + break; + case 44100: + rates |= SNDRV_PCM_RATE_44100; + break; + case 48000: + rates |= SNDRV_PCM_RATE_48000; + break; + case 64000: + rates |= SNDRV_PCM_RATE_64000; + break; + case 88200: + rates |= SNDRV_PCM_RATE_88200; + break; + case 96000: + rates |= SNDRV_PCM_RATE_96000; + break; + case 176400: + rates |= SNDRV_PCM_RATE_176400; + break; + case 192000: + rates |= SNDRV_PCM_RATE_192000; + break; + default: /* some other rate */ + rates |= SNDRV_PCM_RATE_KNOT; + } + } + } + + pcmhw->rates = rates; + pcmhw->rate_min = rate_min; + pcmhw->rate_max = rate_max; +} + +static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + struct snd_card_asihpi *card = snd_pcm_substream_chip(substream); + int err; + u16 format; + int width; + unsigned int bytes_per_sec; + + print_hwparams(substream, params); + err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); + if (err < 0) + return err; + err = snd_card_asihpi_format_alsa2hpi(params_format(params), &format); + if (err) + return err; + + hpi_handle_error(hpi_format_create(&dpcm->format, + params_channels(params), + format, params_rate(params), 0, 0)); + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { + if (hpi_instream_reset(dpcm->h_stream) != 0) + return -EINVAL; + + if (hpi_instream_set_format( + dpcm->h_stream, &dpcm->format) != 0) + return -EINVAL; + } + + dpcm->hpi_buffer_attached = 0; + if (card->can_dma) { + err = hpi_stream_host_buffer_attach(dpcm->h_stream, + params_buffer_bytes(params), runtime->dma_addr); + if (err == 0) { + snd_printdd( + "stream_host_buffer_attach success %u %lu\n", + params_buffer_bytes(params), + (unsigned long)runtime->dma_addr); + } else { + snd_printd("stream_host_buffer_attach error %d\n", + err); + return -ENOMEM; + } + + err = hpi_stream_get_info_ex(dpcm->h_stream, NULL, + &dpcm->hpi_buffer_attached, NULL, NULL, NULL); + } + bytes_per_sec = params_rate(params) * params_channels(params); + width = snd_pcm_format_width(params_format(params)); + bytes_per_sec *= width; + bytes_per_sec /= 8; + if (width < 0 || bytes_per_sec == 0) + return -EINVAL; + + dpcm->bytes_per_sec = bytes_per_sec; + dpcm->buffer_bytes = params_buffer_bytes(params); + dpcm->period_bytes = params_period_bytes(params); + + return 0; +} + +static int +snd_card_asihpi_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + if (dpcm->hpi_buffer_attached) + hpi_stream_host_buffer_detach(dpcm->h_stream); + + snd_pcm_lib_free_pages(substream); + return 0; +} + +static void snd_card_asihpi_runtime_free(struct snd_pcm_runtime *runtime) +{ + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + kfree(dpcm); +} + +static void snd_card_asihpi_pcm_timer_start(struct snd_pcm_substream * + substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + int expiry; + + expiry = HZ / 200; + + expiry = max(expiry, 1); /* don't let it be zero! */ + mod_timer(&dpcm->timer, jiffies + expiry); + dpcm->respawn_timer = 1; +} + +static void snd_card_asihpi_pcm_timer_stop(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + + dpcm->respawn_timer = 0; + del_timer(&dpcm->timer); +} + +static void snd_card_asihpi_pcm_int_start(struct snd_pcm_substream *substream) +{ + struct snd_card_asihpi_pcm *dpcm; + struct snd_card_asihpi *card; + + BUG_ON(!substream); + + dpcm = (struct snd_card_asihpi_pcm *)substream->runtime->private_data; + card = snd_pcm_substream_chip(substream); + + BUG_ON(in_interrupt()); + tasklet_disable(&card->t); + card->llmode_streampriv = dpcm; + tasklet_enable(&card->t); + + hpi_handle_error(hpi_adapter_set_property(card->hpi->adapter->index, + HPI_ADAPTER_PROPERTY_IRQ_RATE, + card->update_interval_frames, 0)); +} + +static void snd_card_asihpi_pcm_int_stop(struct snd_pcm_substream *substream) +{ + struct snd_card_asihpi_pcm *dpcm; + struct snd_card_asihpi *card; + + BUG_ON(!substream); + + dpcm = (struct snd_card_asihpi_pcm *)substream->runtime->private_data; + card = snd_pcm_substream_chip(substream); + + hpi_handle_error(hpi_adapter_set_property(card->hpi->adapter->index, + HPI_ADAPTER_PROPERTY_IRQ_RATE, 0, 0)); + + if (in_interrupt()) + card->llmode_streampriv = NULL; + else { + tasklet_disable(&card->t); + card->llmode_streampriv = NULL; + tasklet_enable(&card->t); + } +} + +static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream, + int cmd) +{ + struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data; + struct snd_card_asihpi *card = snd_pcm_substream_chip(substream); + struct snd_pcm_substream *s; + u16 e; + char name[16]; + + snd_pcm_debug_name(substream, name, sizeof(name)); + + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + snd_printdd("%s trigger start\n", name); + snd_pcm_group_for_each_entry(s, substream) { + struct snd_pcm_runtime *runtime = s->runtime; + struct snd_card_asihpi_pcm *ds = runtime->private_data; + + if (snd_pcm_substream_chip(s) != card) + continue; + + /* don't link Cap and Play */ + if (substream->stream != s->stream) + continue; + + ds->drained_count = 0; + if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) { + /* How do I know how much valid data is present + * in buffer? Must be at least one period! + * Guessing 2 periods, but if + * buffer is bigger it may contain even more + * data?? + */ + unsigned int preload = ds->period_bytes * 1; + snd_printddd("%d preload %d\n", s->number, preload); + hpi_handle_error(hpi_outstream_write_buf( + ds->h_stream, + &runtime->dma_area[0], + preload, + &ds->format)); + ds->pcm_buf_host_rw_ofs = preload; + } + + if (card->support_grouping) { + snd_printdd("%d group\n", s->number); + e = hpi_stream_group_add( + dpcm->h_stream, + ds->h_stream); + if (!e) { + snd_pcm_trigger_done(s, substream); + } else { + hpi_handle_error(e); + break; + } + } else + break; + } + /* start the master stream */ + card->pcm_start(substream); + if ((substream->stream == SNDRV_PCM_STREAM_CAPTURE) || + !card->can_dma) + hpi_handle_error(hpi_stream_start(dpcm->h_stream)); + break; + + case SNDRV_PCM_TRIGGER_STOP: + snd_printdd("%s trigger stop\n", name); + card->pcm_stop(substream); + snd_pcm_group_for_each_entry(s, substream) { + if (snd_pcm_substream_chip(s) != card) + continue; + /* don't link Cap and Play */ + if (substream->stream != s->stream) + continue; + + /*? workaround linked streams don't + transition to SETUP 20070706*/ + s->runtime->status->state = SNDRV_PCM_STATE_SETUP; + + if (card->support_grouping) { + snd_printdd("%d group\n", s->number); + snd_pcm_trigger_done(s, substream); + } else + break; + } + + /* _prepare and _hwparams reset the stream */ + hpi_handle_error(hpi_stream_stop(dpcm->h_stream)); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + hpi_handle_error( + hpi_outstream_reset(dpcm->h_stream)); + + if (card->support_grouping) + hpi_handle_error(hpi_stream_group_reset(dpcm->h_stream)); + break; + + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + snd_printdd("%s trigger pause release\n", name); + card->pcm_start(substream); + hpi_handle_error(hpi_stream_start(dpcm->h_stream)); + break; + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + snd_printdd("%s trigger pause push\n", name); + card->pcm_stop(substream); + hpi_handle_error(hpi_stream_stop(dpcm->h_stream)); + break; + default: + snd_printd(KERN_ERR "\tINVALID\n"); + return -EINVAL; + } + + return 0; +} + +/*algorithm outline + Without linking degenerates to getting single stream pos etc + Without mmap 2nd loop degenerates to snd_pcm_period_elapsed +*/ +/* +pcm_buf_dma_ofs=get_buf_pos(s); +for_each_linked_stream(s) { + pcm_buf_dma_ofs=get_buf_pos(s); + min_buf_pos = modulo_min(min_buf_pos, pcm_buf_dma_ofs, buffer_bytes) + new_data = min(new_data, calc_new_data(pcm_buf_dma_ofs,irq_pos) +} +timer.expires = jiffies + predict_next_period_ready(min_buf_pos); +for_each_linked_stream(s) { + s->pcm_buf_dma_ofs = min_buf_pos; + if (new_data > period_bytes) { + if (mmap) { + irq_pos = (irq_pos + period_bytes) % buffer_bytes; + if (playback) { + write(period_bytes); + } else { + read(period_bytes); + } + } + snd_pcm_period_elapsed(s); + } +} +*/ + +/** Minimum of 2 modulo values. Works correctly when the difference between +* the values is less than half the modulus +*/ +static inline unsigned int modulo_min(unsigned int a, unsigned int b, + unsigned long int modulus) +{ + unsigned int result; + if (((a-b) % modulus) < (modulus/2)) + result = b; + else + result = a; + + return result; +} + +/** Timer function, equivalent to interrupt service routine for cards +*/ +static void snd_card_asihpi_timer_function(unsigned long data) +{ + struct snd_card_asihpi_pcm *dpcm = (struct snd_card_asihpi_pcm *)data; + struct snd_pcm_substream *substream = dpcm->substream; + struct snd_card_asihpi *card = snd_pcm_substream_chip(substream); + struct snd_pcm_runtime *runtime; + struct snd_pcm_substream *s; + unsigned int newdata = 0; + unsigned int pcm_buf_dma_ofs, min_buf_pos = 0; + unsigned int remdata, xfercount, next_jiffies; + int first = 1; + int loops = 0; + u16 state; + u32 buffer_size, bytes_avail, samples_played, on_card_bytes; + char name[16]; + + + snd_pcm_debug_name(substream, name, sizeof(name)); + + /* find minimum newdata and buffer pos in group */ + snd_pcm_group_for_each_entry(s, substream) { + struct snd_card_asihpi_pcm *ds = s->runtime->private_data; + runtime = s->runtime; + + if (snd_pcm_substream_chip(s) != card) + continue; + + /* don't link Cap and Play */ + if (substream->stream != s->stream) + continue; + + hpi_handle_error(hpi_stream_get_info_ex( + ds->h_stream, &state, + &buffer_size, &bytes_avail, + &samples_played, &on_card_bytes)); + + /* number of bytes in on-card buffer */ + runtime->delay = on_card_bytes; + + if (!card->can_dma) + on_card_bytes = bytes_avail; + + if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) { + pcm_buf_dma_ofs = ds->pcm_buf_host_rw_ofs - bytes_avail; + if (state == HPI_STATE_STOPPED) { + if (bytes_avail == 0) { + hpi_handle_error(hpi_stream_start(ds->h_stream)); + snd_printdd("P%d start\n", s->number); + ds->drained_count = 0; + } + } else if (state == HPI_STATE_DRAINED) { + snd_printd(KERN_WARNING "P%d drained\n", + s->number); + ds->drained_count++; + if (ds->drained_count > 20) { + snd_pcm_stop_xrun(s); + continue; + } + } else { + ds->drained_count = 0; + } + } else + pcm_buf_dma_ofs = bytes_avail + ds->pcm_buf_host_rw_ofs; + + if (first) { + /* can't statically init min when wrap is involved */ + min_buf_pos = pcm_buf_dma_ofs; + newdata = (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes; + first = 0; + } else { + min_buf_pos = + modulo_min(min_buf_pos, pcm_buf_dma_ofs, UINT_MAX+1L); + newdata = min( + (pcm_buf_dma_ofs - ds->pcm_buf_elapsed_dma_ofs) % ds->buffer_bytes, + newdata); + } + + snd_printddd( + "timer1, %s, %d, S=%d, elap=%d, rw=%d, dsp=%d, left=%d, aux=%d, space=%d, hw_ptr=%ld, appl_ptr=%ld\n", + name, s->number, state, + ds->pcm_buf_elapsed_dma_ofs, + ds->pcm_buf_host_rw_ofs, + pcm_buf_dma_ofs, + (int)bytes_avail, + + (int)on_card_bytes, + buffer_size-bytes_avail, + (unsigned long)frames_to_bytes(runtime, + runtime->status->hw_ptr), + (unsigned long)frames_to_bytes(runtime, + runtime->control->appl_ptr) + ); + loops++; + } + pcm_buf_dma_ofs = min_buf_pos; + + remdata = newdata % dpcm->period_bytes; + xfercount = newdata - remdata; /* a multiple of period_bytes */ + /* come back when on_card_bytes has decreased enough to allow + write to happen, or when data has been consumed to make another + period + */ + if (xfercount && (on_card_bytes > dpcm->period_bytes)) + next_jiffies = ((on_card_bytes - dpcm->period_bytes) * HZ / dpcm->bytes_per_sec); + else + next_jiffies = ((dpcm->period_bytes - remdata) * HZ / dpcm->bytes_per_sec); + + next_jiffies = max(next_jiffies, 1U); + dpcm->timer.expires = jiffies + next_jiffies; + snd_printddd("timer2, jif=%d, buf_pos=%d, newdata=%d, xfer=%d\n", + next_jiffies, pcm_buf_dma_ofs, newdata, xfercount); + + snd_pcm_group_for_each_entry(s, substream) { + struct snd_card_asihpi_pcm *ds = s->runtime->private_data; + runtime = s->runtime; + + /* don't link Cap and Play */ + if (substream->stream != s->stream) + continue; + + /* Store dma offset for use by pointer callback */ + ds->pcm_buf_dma_ofs = pcm_buf_dma_ofs; + + if (xfercount && + /* Limit use of on card fifo for playback */ + ((on_card_bytes <= ds->period_bytes) || + (s->stream == SNDRV_PCM_STREAM_CAPTURE))) + + { + + unsigned int buf_ofs = ds->pcm_buf_host_rw_ofs % ds->buffer_bytes; + unsigned int xfer1, xfer2; + char *pd = &s->runtime->dma_area[buf_ofs]; + + if (card->can_dma) { /* buffer wrap is handled at lower level */ + xfer1 = xfercount; + xfer2 = 0; + } else { + xfer1 = min(xfercount, ds->buffer_bytes - buf_ofs); + xfer2 = xfercount - xfer1; + } + + if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) { + snd_printddd("write1, P=%d, xfer=%d, buf_ofs=%d\n", + s->number, xfer1, buf_ofs); + hpi_handle_error( + hpi_outstream_write_buf( + ds->h_stream, pd, xfer1, + &ds->format)); + + if (xfer2) { + pd = s->runtime->dma_area; + + snd_printddd("write2, P=%d, xfer=%d, buf_ofs=%d\n", + s->number, + xfercount - xfer1, buf_ofs); + hpi_handle_error( + hpi_outstream_write_buf( + ds->h_stream, pd, + xfercount - xfer1, + &ds->format)); + } + } else { + snd_printddd("read1, C=%d, xfer=%d\n", + s->number, xfer1); + hpi_handle_error( + hpi_instream_read_buf( + ds->h_stream, + pd, xfer1)); + if (xfer2) { + pd = s->runtime->dma_area; + snd_printddd("read2, C=%d, xfer=%d\n", + s->number, xfer2); + hpi_handle_error( + hpi_instream_read_buf( + ds->h_stream, + pd, xfer2)); + } + } + /* ? host_rw_ofs always ahead of elapsed_dma_ofs by preload size? */ + ds->pcm_buf_host_rw_ofs += xfercount; + ds->pcm_buf_elapsed_dma_ofs += xfercount; + snd_pcm_period_elapsed(s); + } + } + + if (!card->hpi->interrupt_mode && dpcm->respawn_timer) + add_timer(&dpcm->timer); +} + +static void snd_card_asihpi_int_task(unsigned long data) +{ + struct hpi_adapter *a = (struct hpi_adapter *)data; + struct snd_card_asihpi *asihpi; + + WARN_ON(!a || !a->snd_card || !a->snd_card->private_data); + asihpi = (struct snd_card_asihpi *)a->snd_card->private_data; + if (asihpi->llmode_streampriv) + snd_card_asihpi_timer_function( + (unsigned long)asihpi->llmode_streampriv); +} + +static void snd_card_asihpi_isr(struct hpi_adapter *a) +{ + struct snd_card_asihpi *asihpi; + + WARN_ON(!a || !a->snd_card || !a->snd_card->private_data); + asihpi = (struct snd_card_asihpi *)a->snd_card->private_data; + tasklet_schedule(&asihpi->t); +} + +/***************************** PLAYBACK OPS ****************/ +static int snd_card_asihpi_playback_ioctl(struct snd_pcm_substream *substream, + unsigned int cmd, void *arg) +{ + char name[16]; + snd_pcm_debug_name(substream, name, sizeof(name)); + snd_printddd(KERN_INFO "%s ioctl %d\n", name, cmd); + return snd_pcm_lib_ioctl(substream, cmd, arg); +} + +static int snd_card_asihpi_playback_prepare(struct snd_pcm_substream * + substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + + snd_printdd("P%d prepare\n", substream->number); + + hpi_handle_error(hpi_outstream_reset(dpcm->h_stream)); + dpcm->pcm_buf_host_rw_ofs = 0; + dpcm->pcm_buf_dma_ofs = 0; + dpcm->pcm_buf_elapsed_dma_ofs = 0; + return 0; +} + +static snd_pcm_uframes_t +snd_card_asihpi_playback_pointer(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + snd_pcm_uframes_t ptr; + char name[16]; + snd_pcm_debug_name(substream, name, sizeof(name)); + + ptr = bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes); + snd_printddd("%s, pointer=%ld\n", name, (unsigned long)ptr); + return ptr; +} + +static u64 snd_card_asihpi_playback_formats(struct snd_card_asihpi *asihpi, + u32 h_stream) +{ + struct hpi_format hpi_format; + u16 format; + u16 err; + u32 h_control; + u32 sample_rate = 48000; + u64 formats = 0; + + /* on cards without SRC, must query at valid rate, + * maybe set by external sync + */ + err = hpi_mixer_get_control(asihpi->h_mixer, + HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0, + HPI_CONTROL_SAMPLECLOCK, &h_control); + + if (!err) + err = hpi_sample_clock_get_sample_rate(h_control, + &sample_rate); + + for (format = HPI_FORMAT_PCM8_UNSIGNED; + format <= HPI_FORMAT_PCM24_SIGNED; format++) { + err = hpi_format_create(&hpi_format, asihpi->out_max_chans, + format, sample_rate, 128000, 0); + if (!err) + err = hpi_outstream_query_format(h_stream, &hpi_format); + if (!err && (hpi_to_alsa_formats[format] != -1)) + formats |= pcm_format_to_bits(hpi_to_alsa_formats[format]); + } + return formats; +} + +static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm; + struct snd_card_asihpi *card = snd_pcm_substream_chip(substream); + struct snd_pcm_hardware snd_card_asihpi_playback; + int err; + + dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL); + if (dpcm == NULL) + return -ENOMEM; + + err = hpi_outstream_open(card->hpi->adapter->index, + substream->number, &dpcm->h_stream); + hpi_handle_error(err); + if (err) + kfree(dpcm); + if (err == HPI_ERROR_OBJ_ALREADY_OPEN) + return -EBUSY; + if (err) + return -EIO; + + /*? also check ASI5000 samplerate source + If external, only support external rate. + If internal and other stream playing, can't switch + */ + + setup_timer(&dpcm->timer, snd_card_asihpi_timer_function, + (unsigned long) dpcm); + dpcm->substream = substream; + runtime->private_data = dpcm; + runtime->private_free = snd_card_asihpi_runtime_free; + + memset(&snd_card_asihpi_playback, 0, sizeof(snd_card_asihpi_playback)); + if (!card->hpi->interrupt_mode) { + snd_card_asihpi_playback.buffer_bytes_max = BUFFER_BYTES_MAX; + snd_card_asihpi_playback.period_bytes_min = PERIOD_BYTES_MIN; + snd_card_asihpi_playback.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN; + snd_card_asihpi_playback.periods_min = PERIODS_MIN; + snd_card_asihpi_playback.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN; + } else { + size_t pbmin = card->update_interval_frames * + card->out_max_chans; + snd_card_asihpi_playback.buffer_bytes_max = BUFFER_BYTES_MAX; + snd_card_asihpi_playback.period_bytes_min = pbmin; + snd_card_asihpi_playback.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN; + snd_card_asihpi_playback.periods_min = PERIODS_MIN; + snd_card_asihpi_playback.periods_max = BUFFER_BYTES_MAX / pbmin; + } + + /* snd_card_asihpi_playback.fifo_size = 0; */ + snd_card_asihpi_playback.channels_max = card->out_max_chans; + snd_card_asihpi_playback.channels_min = card->out_min_chans; + snd_card_asihpi_playback.formats = + snd_card_asihpi_playback_formats(card, dpcm->h_stream); + + snd_card_asihpi_pcm_samplerates(card, &snd_card_asihpi_playback); + + snd_card_asihpi_playback.info = SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_DOUBLE | + SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_PAUSE | + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID; + + if (card->support_grouping) { + snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_SYNC_START; + snd_pcm_set_sync(substream); + } + + /* struct is copied, so can create initializer dynamically */ + runtime->hw = snd_card_asihpi_playback; + + if (card->can_dma) + err = snd_pcm_hw_constraint_pow2(runtime, 0, + SNDRV_PCM_HW_PARAM_BUFFER_BYTES); + if (err < 0) + return err; + + snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, + card->update_interval_frames); + + snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, + card->update_interval_frames, UINT_MAX); + + snd_printdd("playback open\n"); + + return 0; +} + +static int snd_card_asihpi_playback_close(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + + hpi_handle_error(hpi_outstream_close(dpcm->h_stream)); + snd_printdd("playback close\n"); + + return 0; +} + +static struct snd_pcm_ops snd_card_asihpi_playback_mmap_ops = { + .open = snd_card_asihpi_playback_open, + .close = snd_card_asihpi_playback_close, + .ioctl = snd_card_asihpi_playback_ioctl, + .hw_params = snd_card_asihpi_pcm_hw_params, + .hw_free = snd_card_asihpi_hw_free, + .prepare = snd_card_asihpi_playback_prepare, + .trigger = snd_card_asihpi_trigger, + .pointer = snd_card_asihpi_playback_pointer, +}; + +/***************************** CAPTURE OPS ****************/ +static snd_pcm_uframes_t +snd_card_asihpi_capture_pointer(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + char name[16]; + snd_pcm_debug_name(substream, name, sizeof(name)); + + snd_printddd("%s, pointer=%d\n", name, dpcm->pcm_buf_dma_ofs); + /* NOTE Unlike playback can't use actual samples_played + for the capture position, because those samples aren't yet in + the local buffer available for reading. + */ + return bytes_to_frames(runtime, dpcm->pcm_buf_dma_ofs % dpcm->buffer_bytes); +} + +static int snd_card_asihpi_capture_ioctl(struct snd_pcm_substream *substream, + unsigned int cmd, void *arg) +{ + return snd_pcm_lib_ioctl(substream, cmd, arg); +} + +static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + + hpi_handle_error(hpi_instream_reset(dpcm->h_stream)); + dpcm->pcm_buf_host_rw_ofs = 0; + dpcm->pcm_buf_dma_ofs = 0; + dpcm->pcm_buf_elapsed_dma_ofs = 0; + + snd_printdd("Capture Prepare %d\n", substream->number); + return 0; +} + +static u64 snd_card_asihpi_capture_formats(struct snd_card_asihpi *asihpi, + u32 h_stream) +{ + struct hpi_format hpi_format; + u16 format; + u16 err; + u32 h_control; + u32 sample_rate = 48000; + u64 formats = 0; + + /* on cards without SRC, must query at valid rate, + maybe set by external sync */ + err = hpi_mixer_get_control(asihpi->h_mixer, + HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0, + HPI_CONTROL_SAMPLECLOCK, &h_control); + + if (!err) + err = hpi_sample_clock_get_sample_rate(h_control, + &sample_rate); + + for (format = HPI_FORMAT_PCM8_UNSIGNED; + format <= HPI_FORMAT_PCM24_SIGNED; format++) { + + err = hpi_format_create(&hpi_format, asihpi->in_max_chans, + format, sample_rate, 128000, 0); + if (!err) + err = hpi_instream_query_format(h_stream, &hpi_format); + if (!err && (hpi_to_alsa_formats[format] != -1)) + formats |= pcm_format_to_bits(hpi_to_alsa_formats[format]); + } + return formats; +} + +static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi *card = snd_pcm_substream_chip(substream); + struct snd_card_asihpi_pcm *dpcm; + struct snd_pcm_hardware snd_card_asihpi_capture; + int err; + + dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL); + if (dpcm == NULL) + return -ENOMEM; + + snd_printdd("capture open adapter %d stream %d\n", + card->hpi->adapter->index, substream->number); + + err = hpi_handle_error( + hpi_instream_open(card->hpi->adapter->index, + substream->number, &dpcm->h_stream)); + if (err) + kfree(dpcm); + if (err == HPI_ERROR_OBJ_ALREADY_OPEN) + return -EBUSY; + if (err) + return -EIO; + + setup_timer(&dpcm->timer, snd_card_asihpi_timer_function, + (unsigned long) dpcm); + dpcm->substream = substream; + runtime->private_data = dpcm; + runtime->private_free = snd_card_asihpi_runtime_free; + + memset(&snd_card_asihpi_capture, 0, sizeof(snd_card_asihpi_capture)); + if (!card->hpi->interrupt_mode) { + snd_card_asihpi_capture.buffer_bytes_max = BUFFER_BYTES_MAX; + snd_card_asihpi_capture.period_bytes_min = PERIOD_BYTES_MIN; + snd_card_asihpi_capture.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN; + snd_card_asihpi_capture.periods_min = PERIODS_MIN; + snd_card_asihpi_capture.periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN; + } else { + size_t pbmin = card->update_interval_frames * + card->out_max_chans; + snd_card_asihpi_capture.buffer_bytes_max = BUFFER_BYTES_MAX; + snd_card_asihpi_capture.period_bytes_min = pbmin; + snd_card_asihpi_capture.period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN; + snd_card_asihpi_capture.periods_min = PERIODS_MIN; + snd_card_asihpi_capture.periods_max = BUFFER_BYTES_MAX / pbmin; + } + /* snd_card_asihpi_capture.fifo_size = 0; */ + snd_card_asihpi_capture.channels_max = card->in_max_chans; + snd_card_asihpi_capture.channels_min = card->in_min_chans; + snd_card_asihpi_capture.formats = + snd_card_asihpi_capture_formats(card, dpcm->h_stream); + snd_card_asihpi_pcm_samplerates(card, &snd_card_asihpi_capture); + snd_card_asihpi_capture.info = SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID; + + if (card->support_grouping) + snd_card_asihpi_capture.info |= SNDRV_PCM_INFO_SYNC_START; + + runtime->hw = snd_card_asihpi_capture; + + if (card->can_dma) + err = snd_pcm_hw_constraint_pow2(runtime, 0, + SNDRV_PCM_HW_PARAM_BUFFER_BYTES); + if (err < 0) + return err; + + snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, + card->update_interval_frames); + snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, + card->update_interval_frames, UINT_MAX); + + snd_pcm_set_sync(substream); + + return 0; +} + +static int snd_card_asihpi_capture_close(struct snd_pcm_substream *substream) +{ + struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data; + + hpi_handle_error(hpi_instream_close(dpcm->h_stream)); + return 0; +} + +static struct snd_pcm_ops snd_card_asihpi_capture_mmap_ops = { + .open = snd_card_asihpi_capture_open, + .close = snd_card_asihpi_capture_close, + .ioctl = snd_card_asihpi_capture_ioctl, + .hw_params = snd_card_asihpi_pcm_hw_params, + .hw_free = snd_card_asihpi_hw_free, + .prepare = snd_card_asihpi_capture_prepare, + .trigger = snd_card_asihpi_trigger, + .pointer = snd_card_asihpi_capture_pointer, +}; + +static int snd_card_asihpi_pcm_new(struct snd_card_asihpi *asihpi, int device) +{ + struct snd_pcm *pcm; + int err; + u16 num_instreams, num_outstreams, x16; + u32 x32; + + err = hpi_adapter_get_info(asihpi->hpi->adapter->index, + &num_outstreams, &num_instreams, + &x16, &x32, &x16); + + err = snd_pcm_new(asihpi->card, "Asihpi PCM", device, + num_outstreams, num_instreams, &pcm); + if (err < 0) + return err; + + /* pointer to ops struct is stored, dont change ops afterwards! */ + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_card_asihpi_playback_mmap_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, + &snd_card_asihpi_capture_mmap_ops); + + pcm->private_data = asihpi; + pcm->info_flags = 0; + strcpy(pcm->name, "Asihpi PCM"); + + /*? do we want to emulate MMAP for non-BBM cards? + Jack doesn't work with ALSAs MMAP emulation - WHY NOT? */ + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, + snd_dma_pci_data(asihpi->pci), + 64*1024, BUFFER_BYTES_MAX); + + return 0; +} + +/***************************** MIXER CONTROLS ****************/ +struct hpi_control { + u32 h_control; + u16 control_type; + u16 src_node_type; + u16 src_node_index; + u16 dst_node_type; + u16 dst_node_index; + u16 band; + char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN]; /* copied to snd_ctl_elem_id.name[44]; */ +}; + +static const char * const asihpi_tuner_band_names[] = { + "invalid", + "AM", + "FM mono", + "TV NTSC-M", + "FM stereo", + "AUX", + "TV PAL BG", + "TV PAL I", + "TV PAL DK", + "TV SECAM", + "TV DAB", +}; +/* Number of strings must match the enumerations for HPI_TUNER_BAND in hpi.h */ +compile_time_assert( + (ARRAY_SIZE(asihpi_tuner_band_names) == + (HPI_TUNER_BAND_LAST+1)), + assert_tuner_band_names_size); + +static const char * const asihpi_src_names[] = { + "no source", + "PCM", + "Line", + "Digital", + "Tuner", + "RF", + "Clock", + "Bitstream", + "Mic", + "Net", + "Analog", + "Adapter", + "RTP", + "Internal", + "AVB", + "BLU-Link" +}; +/* Number of strings must match the enumerations for HPI_SOURCENODES in hpi.h */ +compile_time_assert( + (ARRAY_SIZE(asihpi_src_names) == + (HPI_SOURCENODE_LAST_INDEX-HPI_SOURCENODE_NONE+1)), + assert_src_names_size); + +static const char * const asihpi_dst_names[] = { + "no destination", + "PCM", + "Line", + "Digital", + "RF", + "Speaker", + "Net", + "Analog", + "RTP", + "AVB", + "Internal", + "BLU-Link" +}; +/* Number of strings must match the enumerations for HPI_DESTNODES in hpi.h */ +compile_time_assert( + (ARRAY_SIZE(asihpi_dst_names) == + (HPI_DESTNODE_LAST_INDEX-HPI_DESTNODE_NONE+1)), + assert_dst_names_size); + +static inline int ctl_add(struct snd_card *card, struct snd_kcontrol_new *ctl, + struct snd_card_asihpi *asihpi) +{ + int err; + + err = snd_ctl_add(card, snd_ctl_new1(ctl, asihpi)); + if (err < 0) + return err; + else if (mixer_dump) + dev_info(&asihpi->pci->dev, "added %s(%d)\n", ctl->name, ctl->index); + + return 0; +} + +/* Convert HPI control name and location into ALSA control name */ +static void asihpi_ctl_init(struct snd_kcontrol_new *snd_control, + struct hpi_control *hpi_ctl, + char *name) +{ + char *dir; + memset(snd_control, 0, sizeof(*snd_control)); + snd_control->name = hpi_ctl->name; + snd_control->private_value = hpi_ctl->h_control; + snd_control->iface = SNDRV_CTL_ELEM_IFACE_MIXER; + snd_control->index = 0; + + if (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE == HPI_SOURCENODE_CLOCK_SOURCE) + dir = ""; /* clock is neither capture nor playback */ + else if (hpi_ctl->dst_node_type + HPI_DESTNODE_NONE == HPI_DESTNODE_ISTREAM) + dir = "Capture "; /* On or towards a PCM capture destination*/ + else if ((hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) && + (!hpi_ctl->dst_node_type)) + dir = "Capture "; /* On a source node that is not PCM playback */ + else if (hpi_ctl->src_node_type && + (hpi_ctl->src_node_type + HPI_SOURCENODE_NONE != HPI_SOURCENODE_OSTREAM) && + (hpi_ctl->dst_node_type)) + dir = "Monitor Playback "; /* Between an input and an output */ + else + dir = "Playback "; /* PCM Playback source, or output node */ + + if (hpi_ctl->src_node_type && hpi_ctl->dst_node_type) + sprintf(hpi_ctl->name, "%s %d %s %d %s%s", + asihpi_src_names[hpi_ctl->src_node_type], + hpi_ctl->src_node_index, + asihpi_dst_names[hpi_ctl->dst_node_type], + hpi_ctl->dst_node_index, + dir, name); + else if (hpi_ctl->dst_node_type) { + sprintf(hpi_ctl->name, "%s %d %s%s", + asihpi_dst_names[hpi_ctl->dst_node_type], + hpi_ctl->dst_node_index, + dir, name); + } else { + sprintf(hpi_ctl->name, "%s %d %s%s", + asihpi_src_names[hpi_ctl->src_node_type], + hpi_ctl->src_node_index, + dir, name); + } + /* printk(KERN_INFO "Adding %s %d to %d ", hpi_ctl->name, + hpi_ctl->wSrcNodeType, hpi_ctl->wDstNodeType); */ +} + +/*------------------------------------------------------------ + Volume controls + ------------------------------------------------------------*/ +#define VOL_STEP_mB 1 +static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + u32 h_control = kcontrol->private_value; + u32 count; + u16 err; + /* native gains are in millibels */ + short min_gain_mB; + short max_gain_mB; + short step_gain_mB; + + err = hpi_volume_query_range(h_control, + &min_gain_mB, &max_gain_mB, &step_gain_mB); + if (err) { + max_gain_mB = 0; + min_gain_mB = -10000; + step_gain_mB = VOL_STEP_mB; + } + + err = hpi_meter_query_channels(h_control, &count); + if (err) + count = HPI_MAX_CHANNELS; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = count; + uinfo->value.integer.min = min_gain_mB / VOL_STEP_mB; + uinfo->value.integer.max = max_gain_mB / VOL_STEP_mB; + uinfo->value.integer.step = step_gain_mB / VOL_STEP_mB; + return 0; +} + +static int snd_asihpi_volume_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + short an_gain_mB[HPI_MAX_CHANNELS]; + + hpi_handle_error(hpi_volume_get_gain(h_control, an_gain_mB)); + ucontrol->value.integer.value[0] = an_gain_mB[0] / VOL_STEP_mB; + ucontrol->value.integer.value[1] = an_gain_mB[1] / VOL_STEP_mB; + + return 0; +} + +static int snd_asihpi_volume_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int change; + u32 h_control = kcontrol->private_value; + short an_gain_mB[HPI_MAX_CHANNELS]; + + an_gain_mB[0] = + (ucontrol->value.integer.value[0]) * VOL_STEP_mB; + an_gain_mB[1] = + (ucontrol->value.integer.value[1]) * VOL_STEP_mB; + /* change = asihpi->mixer_volume[addr][0] != left || + asihpi->mixer_volume[addr][1] != right; + */ + change = 1; + hpi_handle_error(hpi_volume_set_gain(h_control, an_gain_mB)); + return change; +} + +static const DECLARE_TLV_DB_SCALE(db_scale_100, -10000, VOL_STEP_mB, 0); + +#define snd_asihpi_volume_mute_info snd_ctl_boolean_mono_info + +static int snd_asihpi_volume_mute_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u32 mute; + + hpi_handle_error(hpi_volume_get_mute(h_control, &mute)); + ucontrol->value.integer.value[0] = mute ? 0 : 1; + + return 0; +} + +static int snd_asihpi_volume_mute_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + int change = 1; + /* HPI currently only supports all or none muting of multichannel volume + ALSA Switch element has opposite sense to HPI mute: on==unmuted, off=muted + */ + int mute = ucontrol->value.integer.value[0] ? 0 : HPI_BITMASK_ALL_CHANNELS; + hpi_handle_error(hpi_volume_set_mute(h_control, mute)); + return change; +} + +static int snd_asihpi_volume_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + int err; + u32 mute; + + asihpi_ctl_init(&snd_control, hpi_ctl, "Volume"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ; + snd_control.info = snd_asihpi_volume_info; + snd_control.get = snd_asihpi_volume_get; + snd_control.put = snd_asihpi_volume_put; + snd_control.tlv.p = db_scale_100; + + err = ctl_add(card, &snd_control, asihpi); + if (err) + return err; + + if (hpi_volume_get_mute(hpi_ctl->h_control, &mute) == 0) { + asihpi_ctl_init(&snd_control, hpi_ctl, "Switch"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + snd_control.info = snd_asihpi_volume_mute_info; + snd_control.get = snd_asihpi_volume_mute_get; + snd_control.put = snd_asihpi_volume_mute_put; + err = ctl_add(card, &snd_control, asihpi); + } + return err; +} + +/*------------------------------------------------------------ + Level controls + ------------------------------------------------------------*/ +static int snd_asihpi_level_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + u32 h_control = kcontrol->private_value; + u16 err; + short min_gain_mB; + short max_gain_mB; + short step_gain_mB; + + err = + hpi_level_query_range(h_control, &min_gain_mB, + &max_gain_mB, &step_gain_mB); + if (err) { + max_gain_mB = 2400; + min_gain_mB = -1000; + step_gain_mB = 100; + } + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = min_gain_mB / HPI_UNITS_PER_dB; + uinfo->value.integer.max = max_gain_mB / HPI_UNITS_PER_dB; + uinfo->value.integer.step = step_gain_mB / HPI_UNITS_PER_dB; + return 0; +} + +static int snd_asihpi_level_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + short an_gain_mB[HPI_MAX_CHANNELS]; + + hpi_handle_error(hpi_level_get_gain(h_control, an_gain_mB)); + ucontrol->value.integer.value[0] = + an_gain_mB[0] / HPI_UNITS_PER_dB; + ucontrol->value.integer.value[1] = + an_gain_mB[1] / HPI_UNITS_PER_dB; + + return 0; +} + +static int snd_asihpi_level_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int change; + u32 h_control = kcontrol->private_value; + short an_gain_mB[HPI_MAX_CHANNELS]; + + an_gain_mB[0] = + (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB; + an_gain_mB[1] = + (ucontrol->value.integer.value[1]) * HPI_UNITS_PER_dB; + /* change = asihpi->mixer_level[addr][0] != left || + asihpi->mixer_level[addr][1] != right; + */ + change = 1; + hpi_handle_error(hpi_level_set_gain(h_control, an_gain_mB)); + return change; +} + +static const DECLARE_TLV_DB_SCALE(db_scale_level, -1000, 100, 0); + +static int snd_asihpi_level_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + /* can't use 'volume' cos some nodes have volume as well */ + asihpi_ctl_init(&snd_control, hpi_ctl, "Level"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ; + snd_control.info = snd_asihpi_level_info; + snd_control.get = snd_asihpi_level_get; + snd_control.put = snd_asihpi_level_put; + snd_control.tlv.p = db_scale_level; + + return ctl_add(card, &snd_control, asihpi); +} + +/*------------------------------------------------------------ + AESEBU controls + ------------------------------------------------------------*/ + +/* AESEBU format */ +static const char * const asihpi_aesebu_format_names[] = { + "N/A", "S/PDIF", "AES/EBU" }; + +static int snd_asihpi_aesebu_format_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + return snd_ctl_enum_info(uinfo, 1, 3, asihpi_aesebu_format_names); +} + +static int snd_asihpi_aesebu_format_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol, + u16 (*func)(u32, u16 *)) +{ + u32 h_control = kcontrol->private_value; + u16 source, err; + + err = func(h_control, &source); + + /* default to N/A */ + ucontrol->value.enumerated.item[0] = 0; + /* return success but set the control to N/A */ + if (err) + return 0; + if (source == HPI_AESEBU_FORMAT_SPDIF) + ucontrol->value.enumerated.item[0] = 1; + if (source == HPI_AESEBU_FORMAT_AESEBU) + ucontrol->value.enumerated.item[0] = 2; + + return 0; +} + +static int snd_asihpi_aesebu_format_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol, + u16 (*func)(u32, u16)) +{ + u32 h_control = kcontrol->private_value; + + /* default to S/PDIF */ + u16 source = HPI_AESEBU_FORMAT_SPDIF; + + if (ucontrol->value.enumerated.item[0] == 1) + source = HPI_AESEBU_FORMAT_SPDIF; + if (ucontrol->value.enumerated.item[0] == 2) + source = HPI_AESEBU_FORMAT_AESEBU; + + if (func(h_control, source) != 0) + return -EINVAL; + + return 1; +} + +static int snd_asihpi_aesebu_rx_format_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { + return snd_asihpi_aesebu_format_get(kcontrol, ucontrol, + hpi_aesebu_receiver_get_format); +} + +static int snd_asihpi_aesebu_rx_format_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { + return snd_asihpi_aesebu_format_put(kcontrol, ucontrol, + hpi_aesebu_receiver_set_format); +} + +static int snd_asihpi_aesebu_rxstatus_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 0X1F; + uinfo->value.integer.step = 1; + + return 0; +} + +static int snd_asihpi_aesebu_rxstatus_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { + + u32 h_control = kcontrol->private_value; + u16 status; + + hpi_handle_error(hpi_aesebu_receiver_get_error_status( + h_control, &status)); + ucontrol->value.integer.value[0] = status; + return 0; +} + +static int snd_asihpi_aesebu_rx_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + asihpi_ctl_init(&snd_control, hpi_ctl, "Format"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + snd_control.info = snd_asihpi_aesebu_format_info; + snd_control.get = snd_asihpi_aesebu_rx_format_get; + snd_control.put = snd_asihpi_aesebu_rx_format_put; + + + if (ctl_add(card, &snd_control, asihpi) < 0) + return -EINVAL; + + asihpi_ctl_init(&snd_control, hpi_ctl, "Status"); + snd_control.access = + SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ; + snd_control.info = snd_asihpi_aesebu_rxstatus_info; + snd_control.get = snd_asihpi_aesebu_rxstatus_get; + + return ctl_add(card, &snd_control, asihpi); +} + +static int snd_asihpi_aesebu_tx_format_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { + return snd_asihpi_aesebu_format_get(kcontrol, ucontrol, + hpi_aesebu_transmitter_get_format); +} + +static int snd_asihpi_aesebu_tx_format_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { + return snd_asihpi_aesebu_format_put(kcontrol, ucontrol, + hpi_aesebu_transmitter_set_format); +} + + +static int snd_asihpi_aesebu_tx_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + asihpi_ctl_init(&snd_control, hpi_ctl, "Format"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + snd_control.info = snd_asihpi_aesebu_format_info; + snd_control.get = snd_asihpi_aesebu_tx_format_get; + snd_control.put = snd_asihpi_aesebu_tx_format_put; + + return ctl_add(card, &snd_control, asihpi); +} + +/*------------------------------------------------------------ + Tuner controls + ------------------------------------------------------------*/ + +/* Gain */ + +static int snd_asihpi_tuner_gain_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + u32 h_control = kcontrol->private_value; + u16 err; + short idx; + u16 gain_range[3]; + + for (idx = 0; idx < 3; idx++) { + err = hpi_tuner_query_gain(h_control, + idx, &gain_range[idx]); + if (err != 0) + return err; + } + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = ((int)gain_range[0]) / HPI_UNITS_PER_dB; + uinfo->value.integer.max = ((int)gain_range[1]) / HPI_UNITS_PER_dB; + uinfo->value.integer.step = ((int) gain_range[2]) / HPI_UNITS_PER_dB; + return 0; +} + +static int snd_asihpi_tuner_gain_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + /* + struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol); + */ + u32 h_control = kcontrol->private_value; + short gain; + + hpi_handle_error(hpi_tuner_get_gain(h_control, &gain)); + ucontrol->value.integer.value[0] = gain / HPI_UNITS_PER_dB; + + return 0; +} + +static int snd_asihpi_tuner_gain_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + /* + struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol); + */ + u32 h_control = kcontrol->private_value; + short gain; + + gain = (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB; + hpi_handle_error(hpi_tuner_set_gain(h_control, gain)); + + return 1; +} + +/* Band */ + +static int asihpi_tuner_band_query(struct snd_kcontrol *kcontrol, + u16 *band_list, u32 len) { + u32 h_control = kcontrol->private_value; + u16 err = 0; + u32 i; + + for (i = 0; i < len; i++) { + err = hpi_tuner_query_band( + h_control, i, &band_list[i]); + if (err != 0) + break; + } + + if (err && (err != HPI_ERROR_INVALID_OBJ_INDEX)) + return -EIO; + + return i; +} + +static int snd_asihpi_tuner_band_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + u16 tuner_bands[HPI_TUNER_BAND_LAST]; + int num_bands = 0; + + num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands, + HPI_TUNER_BAND_LAST); + + if (num_bands < 0) + return num_bands; + + return snd_ctl_enum_info(uinfo, 1, num_bands, asihpi_tuner_band_names); +} + +static int snd_asihpi_tuner_band_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + /* + struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol); + */ + u16 band, idx; + u16 tuner_bands[HPI_TUNER_BAND_LAST]; + u32 num_bands = 0; + + num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands, + HPI_TUNER_BAND_LAST); + + hpi_handle_error(hpi_tuner_get_band(h_control, &band)); + + ucontrol->value.enumerated.item[0] = -1; + for (idx = 0; idx < HPI_TUNER_BAND_LAST; idx++) + if (tuner_bands[idx] == band) { + ucontrol->value.enumerated.item[0] = idx; + break; + } + + return 0; +} + +static int snd_asihpi_tuner_band_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + /* + struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol); + */ + u32 h_control = kcontrol->private_value; + unsigned int idx; + u16 band; + u16 tuner_bands[HPI_TUNER_BAND_LAST]; + u32 num_bands = 0; + + num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands, + HPI_TUNER_BAND_LAST); + + idx = ucontrol->value.enumerated.item[0]; + if (idx >= ARRAY_SIZE(tuner_bands)) + idx = ARRAY_SIZE(tuner_bands) - 1; + band = tuner_bands[idx]; + hpi_handle_error(hpi_tuner_set_band(h_control, band)); + + return 1; +} + +/* Freq */ + +static int snd_asihpi_tuner_freq_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + u32 h_control = kcontrol->private_value; + u16 err; + u16 tuner_bands[HPI_TUNER_BAND_LAST]; + u16 num_bands = 0, band_iter, idx; + u32 freq_range[3], temp_freq_range[3]; + + num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands, + HPI_TUNER_BAND_LAST); + + freq_range[0] = INT_MAX; + freq_range[1] = 0; + freq_range[2] = INT_MAX; + + for (band_iter = 0; band_iter < num_bands; band_iter++) { + for (idx = 0; idx < 3; idx++) { + err = hpi_tuner_query_frequency(h_control, + idx, tuner_bands[band_iter], + &temp_freq_range[idx]); + if (err != 0) + return err; + } + + /* skip band with bogus stepping */ + if (temp_freq_range[2] <= 0) + continue; + + if (temp_freq_range[0] < freq_range[0]) + freq_range[0] = temp_freq_range[0]; + if (temp_freq_range[1] > freq_range[1]) + freq_range[1] = temp_freq_range[1]; + if (temp_freq_range[2] < freq_range[2]) + freq_range[2] = temp_freq_range[2]; + } + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = ((int)freq_range[0]); + uinfo->value.integer.max = ((int)freq_range[1]); + uinfo->value.integer.step = ((int)freq_range[2]); + return 0; +} + +static int snd_asihpi_tuner_freq_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u32 freq; + + hpi_handle_error(hpi_tuner_get_frequency(h_control, &freq)); + ucontrol->value.integer.value[0] = freq; + + return 0; +} + +static int snd_asihpi_tuner_freq_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u32 freq; + + freq = ucontrol->value.integer.value[0]; + hpi_handle_error(hpi_tuner_set_frequency(h_control, freq)); + + return 1; +} + +/* Tuner control group initializer */ +static int snd_asihpi_tuner_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + snd_control.private_value = hpi_ctl->h_control; + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + + if (!hpi_tuner_get_gain(hpi_ctl->h_control, NULL)) { + asihpi_ctl_init(&snd_control, hpi_ctl, "Gain"); + snd_control.info = snd_asihpi_tuner_gain_info; + snd_control.get = snd_asihpi_tuner_gain_get; + snd_control.put = snd_asihpi_tuner_gain_put; + + if (ctl_add(card, &snd_control, asihpi) < 0) + return -EINVAL; + } + + asihpi_ctl_init(&snd_control, hpi_ctl, "Band"); + snd_control.info = snd_asihpi_tuner_band_info; + snd_control.get = snd_asihpi_tuner_band_get; + snd_control.put = snd_asihpi_tuner_band_put; + + if (ctl_add(card, &snd_control, asihpi) < 0) + return -EINVAL; + + asihpi_ctl_init(&snd_control, hpi_ctl, "Freq"); + snd_control.info = snd_asihpi_tuner_freq_info; + snd_control.get = snd_asihpi_tuner_freq_get; + snd_control.put = snd_asihpi_tuner_freq_put; + + return ctl_add(card, &snd_control, asihpi); +} + +/*------------------------------------------------------------ + Meter controls + ------------------------------------------------------------*/ +static int snd_asihpi_meter_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + u32 h_control = kcontrol->private_value; + u32 count; + u16 err; + err = hpi_meter_query_channels(h_control, &count); + if (err) + count = HPI_MAX_CHANNELS; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = count; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 0x7FFFFFFF; + return 0; +} + +/* linear values for 10dB steps */ +static int log2lin[] = { + 0x7FFFFFFF, /* 0dB */ + 679093956, + 214748365, + 67909396, + 21474837, + 6790940, + 2147484, /* -60dB */ + 679094, + 214748, /* -80 */ + 67909, + 21475, /* -100 */ + 6791, + 2147, + 679, + 214, + 68, + 21, + 7, + 2 +}; + +static int snd_asihpi_meter_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + short an_gain_mB[HPI_MAX_CHANNELS], i; + u16 err; + + err = hpi_meter_get_peak(h_control, an_gain_mB); + + for (i = 0; i < HPI_MAX_CHANNELS; i++) { + if (err) { + ucontrol->value.integer.value[i] = 0; + } else if (an_gain_mB[i] >= 0) { + ucontrol->value.integer.value[i] = + an_gain_mB[i] << 16; + } else { + /* -ve is log value in millibels < -60dB, + * convert to (roughly!) linear, + */ + ucontrol->value.integer.value[i] = + log2lin[an_gain_mB[i] / -1000]; + } + } + return 0; +} + +static int snd_asihpi_meter_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl, int subidx) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + asihpi_ctl_init(&snd_control, hpi_ctl, "Meter"); + snd_control.access = + SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ; + snd_control.info = snd_asihpi_meter_info; + snd_control.get = snd_asihpi_meter_get; + + snd_control.index = subidx; + + return ctl_add(card, &snd_control, asihpi); +} + +/*------------------------------------------------------------ + Multiplexer controls + ------------------------------------------------------------*/ +static int snd_card_asihpi_mux_count_sources(struct snd_kcontrol *snd_control) +{ + u32 h_control = snd_control->private_value; + struct hpi_control hpi_ctl; + int s, err; + for (s = 0; s < 32; s++) { + err = hpi_multiplexer_query_source(h_control, s, + &hpi_ctl. + src_node_type, + &hpi_ctl. + src_node_index); + if (err) + break; + } + return s; +} + +static int snd_asihpi_mux_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + int err; + u16 src_node_type, src_node_index; + u32 h_control = kcontrol->private_value; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = + snd_card_asihpi_mux_count_sources(kcontrol); + + if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) + uinfo->value.enumerated.item = + uinfo->value.enumerated.items - 1; + + err = + hpi_multiplexer_query_source(h_control, + uinfo->value.enumerated.item, + &src_node_type, &src_node_index); + + sprintf(uinfo->value.enumerated.name, "%s %d", + asihpi_src_names[src_node_type - HPI_SOURCENODE_NONE], + src_node_index); + return 0; +} + +static int snd_asihpi_mux_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u16 source_type, source_index; + u16 src_node_type, src_node_index; + int s; + + hpi_handle_error(hpi_multiplexer_get_source(h_control, + &source_type, &source_index)); + /* Should cache this search result! */ + for (s = 0; s < 256; s++) { + if (hpi_multiplexer_query_source(h_control, s, + &src_node_type, &src_node_index)) + break; + + if ((source_type == src_node_type) + && (source_index == src_node_index)) { + ucontrol->value.enumerated.item[0] = s; + return 0; + } + } + snd_printd(KERN_WARNING + "Control %x failed to match mux source %hu %hu\n", + h_control, source_type, source_index); + ucontrol->value.enumerated.item[0] = 0; + return 0; +} + +static int snd_asihpi_mux_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int change; + u32 h_control = kcontrol->private_value; + u16 source_type, source_index; + u16 e; + + change = 1; + + e = hpi_multiplexer_query_source(h_control, + ucontrol->value.enumerated.item[0], + &source_type, &source_index); + if (!e) + hpi_handle_error( + hpi_multiplexer_set_source(h_control, + source_type, source_index)); + return change; +} + + +static int snd_asihpi_mux_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + asihpi_ctl_init(&snd_control, hpi_ctl, "Route"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + snd_control.info = snd_asihpi_mux_info; + snd_control.get = snd_asihpi_mux_get; + snd_control.put = snd_asihpi_mux_put; + + return ctl_add(card, &snd_control, asihpi); + +} + +/*------------------------------------------------------------ + Channel mode controls + ------------------------------------------------------------*/ +static int snd_asihpi_cmode_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static const char * const mode_names[HPI_CHANNEL_MODE_LAST + 1] = { + "invalid", + "Normal", "Swap", + "From Left", "From Right", + "To Left", "To Right" + }; + + u32 h_control = kcontrol->private_value; + u16 mode; + int i; + const char *mapped_names[6]; + int valid_modes = 0; + + /* HPI channel mode values can be from 1 to 6 + Some adapters only support a contiguous subset + */ + for (i = 0; i < HPI_CHANNEL_MODE_LAST; i++) + if (!hpi_channel_mode_query_mode( + h_control, i, &mode)) { + mapped_names[valid_modes] = mode_names[mode]; + valid_modes++; + } + + if (!valid_modes) + return -EINVAL; + + return snd_ctl_enum_info(uinfo, 1, valid_modes, mapped_names); +} + +static int snd_asihpi_cmode_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u16 mode; + + if (hpi_channel_mode_get(h_control, &mode)) + mode = 1; + + ucontrol->value.enumerated.item[0] = mode - 1; + + return 0; +} + +static int snd_asihpi_cmode_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int change; + u32 h_control = kcontrol->private_value; + + change = 1; + + hpi_handle_error(hpi_channel_mode_set(h_control, + ucontrol->value.enumerated.item[0] + 1)); + return change; +} + + +static int snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + asihpi_ctl_init(&snd_control, hpi_ctl, "Mode"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + snd_control.info = snd_asihpi_cmode_info; + snd_control.get = snd_asihpi_cmode_get; + snd_control.put = snd_asihpi_cmode_put; + + return ctl_add(card, &snd_control, asihpi); +} + +/*------------------------------------------------------------ + Sampleclock source controls + ------------------------------------------------------------*/ +static const char * const sampleclock_sources[] = { + "N/A", "Local PLL", "Digital Sync", "Word External", "Word Header", + "SMPTE", "Digital1", "Auto", "Network", "Invalid", + "Prev Module", "BLU-Link", + "Digital2", "Digital3", "Digital4", "Digital5", + "Digital6", "Digital7", "Digital8"}; + + /* Number of strings must match expected enumerated values */ + compile_time_assert( + (ARRAY_SIZE(sampleclock_sources) == MAX_CLOCKSOURCES), + assert_sampleclock_sources_size); + +static int snd_asihpi_clksrc_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_card_asihpi *asihpi = + (struct snd_card_asihpi *)(kcontrol->private_data); + struct clk_cache *clkcache = &asihpi->cc; + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = clkcache->count; + + if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) + uinfo->value.enumerated.item = + uinfo->value.enumerated.items - 1; + + strcpy(uinfo->value.enumerated.name, + clkcache->s[uinfo->value.enumerated.item].name); + return 0; +} + +static int snd_asihpi_clksrc_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_card_asihpi *asihpi = + (struct snd_card_asihpi *)(kcontrol->private_data); + struct clk_cache *clkcache = &asihpi->cc; + u32 h_control = kcontrol->private_value; + u16 source, srcindex = 0; + int i; + + ucontrol->value.enumerated.item[0] = 0; + if (hpi_sample_clock_get_source(h_control, &source)) + source = 0; + + if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT) + if (hpi_sample_clock_get_source_index(h_control, &srcindex)) + srcindex = 0; + + for (i = 0; i < clkcache->count; i++) + if ((clkcache->s[i].source == source) && + (clkcache->s[i].index == srcindex)) + break; + + ucontrol->value.enumerated.item[0] = i; + + return 0; +} + +static int snd_asihpi_clksrc_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_card_asihpi *asihpi = + (struct snd_card_asihpi *)(kcontrol->private_data); + struct clk_cache *clkcache = &asihpi->cc; + unsigned int item; + int change; + u32 h_control = kcontrol->private_value; + + change = 1; + item = ucontrol->value.enumerated.item[0]; + if (item >= clkcache->count) + item = clkcache->count-1; + + hpi_handle_error(hpi_sample_clock_set_source( + h_control, clkcache->s[item].source)); + + if (clkcache->s[item].source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT) + hpi_handle_error(hpi_sample_clock_set_source_index( + h_control, clkcache->s[item].index)); + return change; +} + +/*------------------------------------------------------------ + Clkrate controls + ------------------------------------------------------------*/ +/* Need to change this to enumerated control with list of rates */ +static int snd_asihpi_clklocal_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 8000; + uinfo->value.integer.max = 192000; + uinfo->value.integer.step = 100; + + return 0; +} + +static int snd_asihpi_clklocal_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u32 rate; + u16 e; + + e = hpi_sample_clock_get_local_rate(h_control, &rate); + if (!e) + ucontrol->value.integer.value[0] = rate; + else + ucontrol->value.integer.value[0] = 0; + return 0; +} + +static int snd_asihpi_clklocal_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int change; + u32 h_control = kcontrol->private_value; + + /* change = asihpi->mixer_clkrate[addr][0] != left || + asihpi->mixer_clkrate[addr][1] != right; + */ + change = 1; + hpi_handle_error(hpi_sample_clock_set_local_rate(h_control, + ucontrol->value.integer.value[0])); + return change; +} + +static int snd_asihpi_clkrate_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 8000; + uinfo->value.integer.max = 192000; + uinfo->value.integer.step = 100; + + return 0; +} + +static int snd_asihpi_clkrate_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u32 rate; + u16 e; + + e = hpi_sample_clock_get_sample_rate(h_control, &rate); + if (!e) + ucontrol->value.integer.value[0] = rate; + else + ucontrol->value.integer.value[0] = 0; + return 0; +} + +static int snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card; + struct snd_kcontrol_new snd_control; + + struct clk_cache *clkcache; + u32 hSC = hpi_ctl->h_control; + int has_aes_in = 0; + int i, j; + u16 source; + + if (snd_BUG_ON(!asihpi)) + return -EINVAL; + card = asihpi->card; + clkcache = &asihpi->cc; + snd_control.private_value = hpi_ctl->h_control; + + clkcache->has_local = 0; + + for (i = 0; i <= HPI_SAMPLECLOCK_SOURCE_LAST; i++) { + if (hpi_sample_clock_query_source(hSC, + i, &source)) + break; + clkcache->s[i].source = source; + clkcache->s[i].index = 0; + clkcache->s[i].name = sampleclock_sources[source]; + if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT) + has_aes_in = 1; + if (source == HPI_SAMPLECLOCK_SOURCE_LOCAL) + clkcache->has_local = 1; + } + if (has_aes_in) + /* already will have picked up index 0 above */ + for (j = 1; j < 8; j++) { + if (hpi_sample_clock_query_source_index(hSC, + j, HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT, + &source)) + break; + clkcache->s[i].source = + HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT; + clkcache->s[i].index = j; + clkcache->s[i].name = sampleclock_sources[ + j+HPI_SAMPLECLOCK_SOURCE_LAST]; + i++; + } + clkcache->count = i; + + asihpi_ctl_init(&snd_control, hpi_ctl, "Source"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ; + snd_control.info = snd_asihpi_clksrc_info; + snd_control.get = snd_asihpi_clksrc_get; + snd_control.put = snd_asihpi_clksrc_put; + if (ctl_add(card, &snd_control, asihpi) < 0) + return -EINVAL; + + + if (clkcache->has_local) { + asihpi_ctl_init(&snd_control, hpi_ctl, "Localrate"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ; + snd_control.info = snd_asihpi_clklocal_info; + snd_control.get = snd_asihpi_clklocal_get; + snd_control.put = snd_asihpi_clklocal_put; + + + if (ctl_add(card, &snd_control, asihpi) < 0) + return -EINVAL; + } + + asihpi_ctl_init(&snd_control, hpi_ctl, "Rate"); + snd_control.access = + SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ; + snd_control.info = snd_asihpi_clkrate_info; + snd_control.get = snd_asihpi_clkrate_get; + + return ctl_add(card, &snd_control, asihpi); +} +/*------------------------------------------------------------ + Mixer + ------------------------------------------------------------*/ + +static int snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi) +{ + struct snd_card *card; + unsigned int idx = 0; + unsigned int subindex = 0; + int err; + struct hpi_control hpi_ctl, prev_ctl; + + if (snd_BUG_ON(!asihpi)) + return -EINVAL; + card = asihpi->card; + strcpy(card->mixername, "Asihpi Mixer"); + + err = + hpi_mixer_open(asihpi->hpi->adapter->index, + &asihpi->h_mixer); + hpi_handle_error(err); + if (err) + return -err; + + memset(&prev_ctl, 0, sizeof(prev_ctl)); + prev_ctl.control_type = -1; + + for (idx = 0; idx < 2000; idx++) { + err = hpi_mixer_get_control_by_index( + asihpi->h_mixer, + idx, + &hpi_ctl.src_node_type, + &hpi_ctl.src_node_index, + &hpi_ctl.dst_node_type, + &hpi_ctl.dst_node_index, + &hpi_ctl.control_type, + &hpi_ctl.h_control); + if (err) { + if (err == HPI_ERROR_CONTROL_DISABLED) { + if (mixer_dump) + dev_info(&asihpi->pci->dev, + "Disabled HPI Control(%d)\n", + idx); + continue; + } else + break; + + } + + hpi_ctl.src_node_type -= HPI_SOURCENODE_NONE; + hpi_ctl.dst_node_type -= HPI_DESTNODE_NONE; + + /* ASI50xx in SSX mode has multiple meters on the same node. + Use subindex to create distinct ALSA controls + for any duplicated controls. + */ + if ((hpi_ctl.control_type == prev_ctl.control_type) && + (hpi_ctl.src_node_type == prev_ctl.src_node_type) && + (hpi_ctl.src_node_index == prev_ctl.src_node_index) && + (hpi_ctl.dst_node_type == prev_ctl.dst_node_type) && + (hpi_ctl.dst_node_index == prev_ctl.dst_node_index)) + subindex++; + else + subindex = 0; + + prev_ctl = hpi_ctl; + + switch (hpi_ctl.control_type) { + case HPI_CONTROL_VOLUME: + err = snd_asihpi_volume_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_LEVEL: + err = snd_asihpi_level_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_MULTIPLEXER: + err = snd_asihpi_mux_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_CHANNEL_MODE: + err = snd_asihpi_cmode_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_METER: + err = snd_asihpi_meter_add(asihpi, &hpi_ctl, subindex); + break; + case HPI_CONTROL_SAMPLECLOCK: + err = snd_asihpi_sampleclock_add( + asihpi, &hpi_ctl); + break; + case HPI_CONTROL_CONNECTION: /* ignore these */ + continue; + case HPI_CONTROL_TUNER: + err = snd_asihpi_tuner_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_AESEBU_TRANSMITTER: + err = snd_asihpi_aesebu_tx_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_AESEBU_RECEIVER: + err = snd_asihpi_aesebu_rx_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_VOX: + case HPI_CONTROL_BITSTREAM: + case HPI_CONTROL_MICROPHONE: + case HPI_CONTROL_PARAMETRIC_EQ: + case HPI_CONTROL_COMPANDER: + default: + if (mixer_dump) + dev_info(&asihpi->pci->dev, + "Untranslated HPI Control (%d) %d %d %d %d %d\n", + idx, + hpi_ctl.control_type, + hpi_ctl.src_node_type, + hpi_ctl.src_node_index, + hpi_ctl.dst_node_type, + hpi_ctl.dst_node_index); + continue; + } + if (err < 0) + return err; + } + if (HPI_ERROR_INVALID_OBJ_INDEX != err) + hpi_handle_error(err); + + dev_info(&asihpi->pci->dev, "%d mixer controls found\n", idx); + + return 0; +} + +/*------------------------------------------------------------ + /proc interface + ------------------------------------------------------------*/ + +static void +snd_asihpi_proc_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_card_asihpi *asihpi = entry->private_data; + u32 h_control; + u32 rate = 0; + u16 source = 0; + + u16 num_outstreams; + u16 num_instreams; + u16 version; + u32 serial_number; + u16 type; + + int err; + + snd_iprintf(buffer, "ASIHPI driver proc file\n"); + + hpi_handle_error(hpi_adapter_get_info(asihpi->hpi->adapter->index, + &num_outstreams, &num_instreams, + &version, &serial_number, &type)); + + snd_iprintf(buffer, + "Adapter type ASI%4X\nHardware Index %d\n" + "%d outstreams\n%d instreams\n", + type, asihpi->hpi->adapter->index, + num_outstreams, num_instreams); + + snd_iprintf(buffer, + "Serial#%d\nHardware version %c%d\nDSP code version %03d\n", + serial_number, ((version >> 3) & 0xf) + 'A', version & 0x7, + ((version >> 13) * 100) + ((version >> 7) & 0x3f)); + + err = hpi_mixer_get_control(asihpi->h_mixer, + HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0, + HPI_CONTROL_SAMPLECLOCK, &h_control); + + if (!err) { + err = hpi_sample_clock_get_sample_rate(h_control, &rate); + err += hpi_sample_clock_get_source(h_control, &source); + + if (!err) + snd_iprintf(buffer, "Sample Clock %dHz, source %s\n", + rate, sampleclock_sources[source]); + } +} + +static void snd_asihpi_proc_init(struct snd_card_asihpi *asihpi) +{ + struct snd_info_entry *entry; + + if (!snd_card_proc_new(asihpi->card, "info", &entry)) + snd_info_set_text_ops(entry, asihpi, snd_asihpi_proc_read); +} + +/*------------------------------------------------------------ + HWDEP + ------------------------------------------------------------*/ + +static int snd_asihpi_hpi_open(struct snd_hwdep *hw, struct file *file) +{ + if (enable_hpi_hwdep) + return 0; + else + return -ENODEV; + +} + +static int snd_asihpi_hpi_release(struct snd_hwdep *hw, struct file *file) +{ + if (enable_hpi_hwdep) + return asihpi_hpi_release(file); + else + return -ENODEV; +} + +static int snd_asihpi_hpi_ioctl(struct snd_hwdep *hw, struct file *file, + unsigned int cmd, unsigned long arg) +{ + if (enable_hpi_hwdep) + return asihpi_hpi_ioctl(file, cmd, arg); + else + return -ENODEV; +} + + +/* results in /dev/snd/hwC#D0 file for each card with index # + also /proc/asound/hwdep will contain '#-00: asihpi (HPI) for each card' +*/ +static int snd_asihpi_hpi_new(struct snd_card_asihpi *asihpi, int device) +{ + struct snd_hwdep *hw; + int err; + + err = snd_hwdep_new(asihpi->card, "HPI", device, &hw); + if (err < 0) + return err; + strcpy(hw->name, "asihpi (HPI)"); + hw->iface = SNDRV_HWDEP_IFACE_LAST; + hw->ops.open = snd_asihpi_hpi_open; + hw->ops.ioctl = snd_asihpi_hpi_ioctl; + hw->ops.release = snd_asihpi_hpi_release; + hw->private_data = asihpi; + return 0; +} + +/*------------------------------------------------------------ + CARD + ------------------------------------------------------------*/ +static int snd_asihpi_probe(struct pci_dev *pci_dev, + const struct pci_device_id *pci_id) +{ + int err; + struct hpi_adapter *hpi; + struct snd_card *card; + struct snd_card_asihpi *asihpi; + + u32 h_control; + u32 h_stream; + u32 adapter_index; + + static int dev; + if (dev >= SNDRV_CARDS) + return -ENODEV; + + /* Should this be enable[hpi->index] ? */ + if (!enable[dev]) { + dev++; + return -ENOENT; + } + + /* Initialise low-level HPI driver */ + err = asihpi_adapter_probe(pci_dev, pci_id); + if (err < 0) + return err; + + hpi = pci_get_drvdata(pci_dev); + adapter_index = hpi->adapter->index; + /* first try to give the card the same index as its hardware index */ + err = snd_card_new(&pci_dev->dev, adapter_index, id[adapter_index], + THIS_MODULE, sizeof(struct snd_card_asihpi), &card); + if (err < 0) { + /* if that fails, try the default index==next available */ + err = snd_card_new(&pci_dev->dev, index[dev], id[dev], + THIS_MODULE, sizeof(struct snd_card_asihpi), + &card); + if (err < 0) + return err; + dev_warn(&pci_dev->dev, "Adapter index %d->ALSA index %d\n", + adapter_index, card->number); + } + + asihpi = card->private_data; + asihpi->card = card; + asihpi->pci = pci_dev; + asihpi->hpi = hpi; + hpi->snd_card = card; + + err = hpi_adapter_get_property(adapter_index, + HPI_ADAPTER_PROPERTY_CAPS1, + NULL, &asihpi->support_grouping); + if (err) + asihpi->support_grouping = 0; + + err = hpi_adapter_get_property(adapter_index, + HPI_ADAPTER_PROPERTY_CAPS2, + &asihpi->support_mrx, NULL); + if (err) + asihpi->support_mrx = 0; + + err = hpi_adapter_get_property(adapter_index, + HPI_ADAPTER_PROPERTY_INTERVAL, + NULL, &asihpi->update_interval_frames); + if (err) + asihpi->update_interval_frames = 512; + + if (hpi->interrupt_mode) { + asihpi->pcm_start = snd_card_asihpi_pcm_int_start; + asihpi->pcm_stop = snd_card_asihpi_pcm_int_stop; + tasklet_init(&asihpi->t, snd_card_asihpi_int_task, + (unsigned long)hpi); + hpi->interrupt_callback = snd_card_asihpi_isr; + } else { + asihpi->pcm_start = snd_card_asihpi_pcm_timer_start; + asihpi->pcm_stop = snd_card_asihpi_pcm_timer_stop; + } + + hpi_handle_error(hpi_instream_open(adapter_index, + 0, &h_stream)); + + err = hpi_instream_host_buffer_free(h_stream); + asihpi->can_dma = (!err); + + hpi_handle_error(hpi_instream_close(h_stream)); + + if (!asihpi->can_dma) + asihpi->update_interval_frames *= 2; + + err = hpi_adapter_get_property(adapter_index, + HPI_ADAPTER_PROPERTY_CURCHANNELS, + &asihpi->in_max_chans, &asihpi->out_max_chans); + if (err) { + asihpi->in_max_chans = 2; + asihpi->out_max_chans = 2; + } + + if (asihpi->out_max_chans > 2) { /* assume LL mode */ + asihpi->out_min_chans = asihpi->out_max_chans; + asihpi->in_min_chans = asihpi->in_max_chans; + asihpi->support_grouping = 0; + } else { + asihpi->out_min_chans = 1; + asihpi->in_min_chans = 1; + } + + dev_info(&pci_dev->dev, "Has dma:%d, grouping:%d, mrx:%d, uif:%d\n", + asihpi->can_dma, + asihpi->support_grouping, + asihpi->support_mrx, + asihpi->update_interval_frames + ); + + err = snd_card_asihpi_pcm_new(asihpi, 0); + if (err < 0) { + dev_err(&pci_dev->dev, "pcm_new failed\n"); + goto __nodev; + } + err = snd_card_asihpi_mixer_new(asihpi); + if (err < 0) { + dev_err(&pci_dev->dev, "mixer_new failed\n"); + goto __nodev; + } + + err = hpi_mixer_get_control(asihpi->h_mixer, + HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0, + HPI_CONTROL_SAMPLECLOCK, &h_control); + + if (!err) + err = hpi_sample_clock_set_local_rate( + h_control, adapter_fs); + + snd_asihpi_proc_init(asihpi); + + /* always create, can be enabled or disabled dynamically + by enable_hwdep module param*/ + snd_asihpi_hpi_new(asihpi, 0); + + strcpy(card->driver, "ASIHPI"); + + sprintf(card->shortname, "AudioScience ASI%4X", + asihpi->hpi->adapter->type); + sprintf(card->longname, "%s %i", + card->shortname, adapter_index); + err = snd_card_register(card); + + if (!err) { + dev++; + return 0; + } +__nodev: + snd_card_free(card); + dev_err(&pci_dev->dev, "snd_asihpi_probe error %d\n", err); + return err; + +} + +static void snd_asihpi_remove(struct pci_dev *pci_dev) +{ + struct hpi_adapter *hpi = pci_get_drvdata(pci_dev); + struct snd_card_asihpi *asihpi = hpi->snd_card->private_data; + + /* Stop interrupts */ + if (hpi->interrupt_mode) { + hpi->interrupt_callback = NULL; + hpi_handle_error(hpi_adapter_set_property(hpi->adapter->index, + HPI_ADAPTER_PROPERTY_IRQ_RATE, 0, 0)); + tasklet_kill(&asihpi->t); + } + + snd_card_free(hpi->snd_card); + hpi->snd_card = NULL; + asihpi_adapter_remove(pci_dev); +} + +static const struct pci_device_id asihpi_pci_tbl[] = { + {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_DSP6205, + HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0, + (kernel_ulong_t)HPI_6205}, + {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_PCI2040, + HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0, + (kernel_ulong_t)HPI_6000}, + {0,} +}; +MODULE_DEVICE_TABLE(pci, asihpi_pci_tbl); + +static struct pci_driver driver = { + .name = KBUILD_MODNAME, + .id_table = asihpi_pci_tbl, + .probe = snd_asihpi_probe, + .remove = snd_asihpi_remove, +}; + +static int __init snd_asihpi_init(void) +{ + asihpi_init(); + return pci_register_driver(&driver); +} + +static void __exit snd_asihpi_exit(void) +{ + + pci_unregister_driver(&driver); + asihpi_exit(); +} + +module_init(snd_asihpi_init) +module_exit(snd_asihpi_exit) + |