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Diffstat (limited to 'kernel/sound/pci/echoaudio/echoaudio.h')
| -rw-r--r-- | kernel/sound/pci/echoaudio/echoaudio.h | 571 |
1 files changed, 571 insertions, 0 deletions
diff --git a/kernel/sound/pci/echoaudio/echoaudio.h b/kernel/sound/pci/echoaudio/echoaudio.h new file mode 100644 index 000000000..32515227a --- /dev/null +++ b/kernel/sound/pci/echoaudio/echoaudio.h @@ -0,0 +1,571 @@ +/**************************************************************************** + + Copyright Echo Digital Audio Corporation (c) 1998 - 2004 + All rights reserved + www.echoaudio.com + + This file is part of Echo Digital Audio's generic driver library. + + Echo Digital Audio's generic driver library is free software; + you can redistribute it and/or modify it under the terms 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. + + **************************************************************************** + + Translation from C++ and adaptation for use in ALSA-Driver + were made by Giuliano Pochini <pochini@shiny.it> + + **************************************************************************** + + + Here's a block diagram of how most of the cards work: + + +-----------+ + record | |<-------------------- Inputs + <-------| | | + PCI | Transport | | + bus | engine | \|/ + ------->| | +-------+ + play | |--->|monitor|-------> Outputs + +-----------+ | mixer | + +-------+ + + The lines going to and from the PCI bus represent "pipes". A pipe performs + audio transport - moving audio data to and from buffers on the host via + bus mastering. + + The inputs and outputs on the right represent input and output "busses." + A bus is a physical, real connection to the outside world. An example + of a bus would be the 1/4" analog connectors on the back of Layla or + an RCA S/PDIF connector. + + For most cards, there is a one-to-one correspondence between outputs + and busses; that is, each individual pipe is hard-wired to a single bus. + + Cards that work this way are Darla20, Gina20, Layla20, Darla24, Gina24, + Layla24, Mona, and Indigo. + + + Mia has a feature called "virtual outputs." + + + +-----------+ + record | |<----------------------------- Inputs + <-------| | | + PCI | Transport | | + bus | engine | \|/ + ------->| | +------+ +-------+ + play | |-->|vmixer|-->|monitor|-------> Outputs + +-----------+ +------+ | mixer | + +-------+ + + + Obviously, the difference here is the box labeled "vmixer." Vmixer is + short for "virtual output mixer." For Mia, pipes are *not* hard-wired + to a single bus; the vmixer lets you mix any pipe to any bus in any + combination. + + Note, however, that the left-hand side of the diagram is unchanged. + Transport works exactly the same way - the difference is in the mixer stage. + + + Pipes and busses are numbered starting at zero. + + + + Pipe index + ========== + + A number of calls in CEchoGals refer to a "pipe index". A pipe index is + a unique number for a pipe that unambiguously refers to a playback or record + pipe. Pipe indices are numbered starting with analog outputs, followed by + digital outputs, then analog inputs, then digital inputs. + + Take Gina24 as an example: + + Pipe index + + 0-7 Analog outputs (0 .. FirstDigitalBusOut-1) + 8-15 Digital outputs (FirstDigitalBusOut .. NumBussesOut-1) + 16-17 Analog inputs + 18-25 Digital inputs + + + You get the pipe index by calling CEchoGals::OpenAudio; the other transport + functions take the pipe index as a parameter. If you need a pipe index for + some other reason, use the handy Makepipe_index method. + + + Some calls take a CChannelMask parameter; CChannelMask is a handy way to + group pipe indices. + + + + Digital mode switch + =================== + + Some cards (right now, Gina24, Layla24, and Mona) have a Digital Mode Switch + or DMS. Cards with a DMS can be set to one of three mutually exclusive + digital modes: S/PDIF RCA, S/PDIF optical, or ADAT optical. + + This may create some confusion since ADAT optical is 8 channels wide and + S/PDIF is only two channels wide. Gina24, Layla24, and Mona handle this + by acting as if they always have 8 digital outs and ins. If you are in + either S/PDIF mode, the last 6 channels don't do anything - data sent + out these channels is thrown away and you will always record zeros. + + Note that with Gina24, Layla24, and Mona, sample rates above 50 kHz are + only available if you have the card configured for S/PDIF optical or S/PDIF + RCA. + + + + Double speed mode + ================= + + Some of the cards support 88.2 kHz and 96 kHz sampling (Darla24, Gina24, + Layla24, Mona, Mia, and Indigo). For these cards, the driver sometimes has + to worry about "double speed mode"; double speed mode applies whenever the + sampling rate is above 50 kHz. + + For instance, Mona and Layla24 support word clock sync. However, they + actually support two different word clock modes - single speed (below + 50 kHz) and double speed (above 50 kHz). The hardware detects if a single + or double speed word clock signal is present; the generic code uses that + information to determine which mode to use. + + The generic code takes care of all this for you. +*/ + + +#ifndef _ECHOAUDIO_H_ +#define _ECHOAUDIO_H_ + + +#define TRUE 1 +#define FALSE 0 + +#include "echoaudio_dsp.h" + + + +/*********************************************************************** + + PCI configuration space + +***********************************************************************/ + +/* + * PCI vendor ID and device IDs for the hardware + */ +#define VENDOR_ID 0x1057 +#define DEVICE_ID_56301 0x1801 +#define DEVICE_ID_56361 0x3410 +#define SUBVENDOR_ID 0xECC0 + + +/* + * Valid Echo PCI subsystem card IDs + */ +#define DARLA20 0x0010 +#define GINA20 0x0020 +#define LAYLA20 0x0030 +#define DARLA24 0x0040 +#define GINA24 0x0050 +#define LAYLA24 0x0060 +#define MONA 0x0070 +#define MIA 0x0080 +#define INDIGO 0x0090 +#define INDIGO_IO 0x00a0 +#define INDIGO_DJ 0x00b0 +#define DC8 0x00c0 +#define INDIGO_IOX 0x00d0 +#define INDIGO_DJX 0x00e0 +#define ECHO3G 0x0100 + + +/************************************************************************ + + Array sizes and so forth + +***********************************************************************/ + +/* + * Sizes + */ +#define ECHO_MAXAUDIOINPUTS 32 /* Max audio input channels */ +#define ECHO_MAXAUDIOOUTPUTS 32 /* Max audio output channels */ +#define ECHO_MAXAUDIOPIPES 32 /* Max number of input and output + * pipes */ +#define E3G_MAX_OUTPUTS 16 +#define ECHO_MAXMIDIJACKS 1 /* Max MIDI ports */ +#define ECHO_MIDI_QUEUE_SZ 512 /* Max MIDI input queue entries */ +#define ECHO_MTC_QUEUE_SZ 32 /* Max MIDI time code input queue + * entries */ + +/* + * MIDI activity indicator timeout + */ +#define MIDI_ACTIVITY_TIMEOUT_USEC 200000 + + +/**************************************************************************** + + Clocks + +*****************************************************************************/ + +/* + * Clock numbers + */ +#define ECHO_CLOCK_INTERNAL 0 +#define ECHO_CLOCK_WORD 1 +#define ECHO_CLOCK_SUPER 2 +#define ECHO_CLOCK_SPDIF 3 +#define ECHO_CLOCK_ADAT 4 +#define ECHO_CLOCK_ESYNC 5 +#define ECHO_CLOCK_ESYNC96 6 +#define ECHO_CLOCK_MTC 7 +#define ECHO_CLOCK_NUMBER 8 +#define ECHO_CLOCKS 0xffff + +/* + * Clock bit numbers - used to report capabilities and whatever clocks + * are being detected dynamically. + */ +#define ECHO_CLOCK_BIT_INTERNAL (1 << ECHO_CLOCK_INTERNAL) +#define ECHO_CLOCK_BIT_WORD (1 << ECHO_CLOCK_WORD) +#define ECHO_CLOCK_BIT_SUPER (1 << ECHO_CLOCK_SUPER) +#define ECHO_CLOCK_BIT_SPDIF (1 << ECHO_CLOCK_SPDIF) +#define ECHO_CLOCK_BIT_ADAT (1 << ECHO_CLOCK_ADAT) +#define ECHO_CLOCK_BIT_ESYNC (1 << ECHO_CLOCK_ESYNC) +#define ECHO_CLOCK_BIT_ESYNC96 (1 << ECHO_CLOCK_ESYNC96) +#define ECHO_CLOCK_BIT_MTC (1<<ECHO_CLOCK_MTC) + + +/*************************************************************************** + + Digital modes + +****************************************************************************/ + +/* + * Digital modes for Mona, Layla24, and Gina24 + */ +#define DIGITAL_MODE_NONE 0xFF +#define DIGITAL_MODE_SPDIF_RCA 0 +#define DIGITAL_MODE_SPDIF_OPTICAL 1 +#define DIGITAL_MODE_ADAT 2 +#define DIGITAL_MODE_SPDIF_CDROM 3 +#define DIGITAL_MODES 4 + +/* + * Digital mode capability masks + */ +#define ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_RCA (1 << DIGITAL_MODE_SPDIF_RCA) +#define ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_OPTICAL (1 << DIGITAL_MODE_SPDIF_OPTICAL) +#define ECHOCAPS_HAS_DIGITAL_MODE_ADAT (1 << DIGITAL_MODE_ADAT) +#define ECHOCAPS_HAS_DIGITAL_MODE_SPDIF_CDROM (1 << DIGITAL_MODE_SPDIF_CDROM) + + +#define EXT_3GBOX_NC 0x01 /* 3G box not connected */ +#define EXT_3GBOX_NOT_SET 0x02 /* 3G box not detected yet */ + + +#define ECHOGAIN_MUTED (-128) /* Minimum possible gain */ +#define ECHOGAIN_MINOUT (-128) /* Min output gain (dB) */ +#define ECHOGAIN_MAXOUT (6) /* Max output gain (dB) */ +#define ECHOGAIN_MININP (-50) /* Min input gain (0.5 dB) */ +#define ECHOGAIN_MAXINP (50) /* Max input gain (0.5 dB) */ + +#define PIPE_STATE_STOPPED 0 /* Pipe has been reset */ +#define PIPE_STATE_PAUSED 1 /* Pipe has been stopped */ +#define PIPE_STATE_STARTED 2 /* Pipe has been started */ +#define PIPE_STATE_PENDING 3 /* Pipe has pending start */ + + + +struct audiopipe { + volatile u32 *dma_counter; /* Commpage register that contains + * the current dma position + * (lower 32 bits only) + */ + u32 last_counter; /* The last position, which is used + * to compute... + */ + u32 position; /* ...the number of bytes tranferred + * by the DMA engine, modulo the + * buffer size + */ + short index; /* Index of the first channel or <0 + * if hw is not configured yet + */ + short interleave; + struct snd_dma_buffer sgpage; /* Room for the scatter-gather list */ + struct snd_pcm_hardware hw; + struct snd_pcm_hw_constraint_list constr; + short sglist_head; + char state; /* pipe state */ +}; + + +struct audioformat { + u8 interleave; /* How the data is arranged in memory: + * mono = 1, stereo = 2, ... + */ + u8 bits_per_sample; /* 8, 16, 24, 32 (24 bits left aligned) */ + char mono_to_stereo; /* Only used if interleave is 1 and + * if this is an output pipe. + */ + char data_are_bigendian; /* 1 = big endian, 0 = little endian */ +}; + + +struct echoaudio { + spinlock_t lock; + struct snd_pcm_substream *substream[DSP_MAXPIPES]; + int last_period[DSP_MAXPIPES]; + struct mutex mode_mutex; + u16 num_digital_modes, digital_mode_list[6]; + u16 num_clock_sources, clock_source_list[10]; + atomic_t opencount; + struct snd_kcontrol *clock_src_ctl; + struct snd_pcm *analog_pcm, *digital_pcm; + struct snd_card *card; + const char *card_name; + struct pci_dev *pci; + unsigned long dsp_registers_phys; + struct resource *iores; + struct snd_dma_buffer commpage_dma_buf; + int irq; +#ifdef ECHOCARD_HAS_MIDI + struct snd_rawmidi *rmidi; + struct snd_rawmidi_substream *midi_in, *midi_out; +#endif + struct timer_list timer; + char tinuse; /* Timer in use */ + char midi_full; /* MIDI output buffer is full */ + char can_set_rate; + char rate_set; + + /* This stuff is used mainly by the lowlevel code */ + struct comm_page *comm_page; /* Virtual address of the memory + * seen by DSP + */ + u32 pipe_alloc_mask; /* Bitmask of allocated pipes */ + u32 pipe_cyclic_mask; /* Bitmask of pipes with cyclic + * buffers + */ + u32 sample_rate; /* Card sample rate in Hz */ + u8 digital_mode; /* Current digital mode + * (see DIGITAL_MODE_*) + */ + u8 spdif_status; /* Gina20, Darla20, Darla24 - only */ + u8 clock_state; /* Gina20, Darla20, Darla24 - only */ + u8 input_clock; /* Currently selected sample clock + * source + */ + u8 output_clock; /* Layla20 only */ + char meters_enabled; /* VU-meters status */ + char asic_loaded; /* Set TRUE when ASIC loaded */ + char bad_board; /* Set TRUE if DSP won't load */ + char professional_spdif; /* 0 = consumer; 1 = professional */ + char non_audio_spdif; /* 3G - only */ + char digital_in_automute; /* Gina24, Layla24, Mona - only */ + char has_phantom_power; + char hasnt_input_nominal_level; /* Gina3G */ + char phantom_power; /* Gina3G - only */ + char has_midi; + char midi_input_enabled; + +#ifdef ECHOCARD_ECHO3G + /* External module -dependent pipe and bus indexes */ + char px_digital_out, px_analog_in, px_digital_in, px_num; + char bx_digital_out, bx_analog_in, bx_digital_in, bx_num; +#endif + + char nominal_level[ECHO_MAXAUDIOPIPES]; /* True == -10dBV + * False == +4dBu */ + s8 input_gain[ECHO_MAXAUDIOINPUTS]; /* Input level -50..+50 + * unit is 0.5dB */ + s8 output_gain[ECHO_MAXAUDIOOUTPUTS]; /* Output level -128..+6 dB + * (-128=muted) */ + s8 monitor_gain[ECHO_MAXAUDIOOUTPUTS][ECHO_MAXAUDIOINPUTS]; + /* -128..+6 dB */ + s8 vmixer_gain[ECHO_MAXAUDIOOUTPUTS][ECHO_MAXAUDIOOUTPUTS]; + /* -128..+6 dB */ + + u16 digital_modes; /* Bitmask of supported modes + * (see ECHOCAPS_HAS_DIGITAL_MODE_*) */ + u16 input_clock_types; /* Suppoted input clock types */ + u16 output_clock_types; /* Suppoted output clock types - + * Layla20 only */ + u16 device_id, subdevice_id; + u16 *dsp_code; /* Current DSP code loaded, + * NULL if nothing loaded */ + short dsp_code_to_load; /* DSP code to load */ + short asic_code; /* Current ASIC code */ + u32 comm_page_phys; /* Physical address of the + * memory seen by DSP */ + volatile u32 __iomem *dsp_registers; /* DSP's register base */ + u32 active_mask; /* Chs. active mask or + * punks out */ +#ifdef CONFIG_PM_SLEEP + const struct firmware *fw_cache[8]; /* Cached firmwares */ +#endif + +#ifdef ECHOCARD_HAS_MIDI + u16 mtc_state; /* State for MIDI input parsing state machine */ + u8 midi_buffer[MIDI_IN_BUFFER_SIZE]; +#endif +}; + + +static int init_dsp_comm_page(struct echoaudio *chip); +static int init_line_levels(struct echoaudio *chip); +static int free_pipes(struct echoaudio *chip, struct audiopipe *pipe); +static int load_firmware(struct echoaudio *chip); +static int wait_handshake(struct echoaudio *chip); +static int send_vector(struct echoaudio *chip, u32 command); +static int get_firmware(const struct firmware **fw_entry, + struct echoaudio *chip, const short fw_index); +static void free_firmware(const struct firmware *fw_entry, + struct echoaudio *chip); + +#ifdef ECHOCARD_HAS_MIDI +static int enable_midi_input(struct echoaudio *chip, char enable); +static void snd_echo_midi_output_trigger( + struct snd_rawmidi_substream *substream, int up); +static int midi_service_irq(struct echoaudio *chip); +static int snd_echo_midi_create(struct snd_card *card, + struct echoaudio *chip); +#endif + + +static inline void clear_handshake(struct echoaudio *chip) +{ + chip->comm_page->handshake = 0; +} + +static inline u32 get_dsp_register(struct echoaudio *chip, u32 index) +{ + return readl(&chip->dsp_registers[index]); +} + +static inline void set_dsp_register(struct echoaudio *chip, u32 index, + u32 value) +{ + writel(value, &chip->dsp_registers[index]); +} + + +/* Pipe and bus indexes. PX_* and BX_* are defined as chip->px_* and chip->bx_* +for 3G cards because they depend on the external box. They are integer +constants for all other cards. +Never use those defines directly, use the following functions instead. */ + +static inline int px_digital_out(const struct echoaudio *chip) +{ + return PX_DIGITAL_OUT; +} + +static inline int px_analog_in(const struct echoaudio *chip) +{ + return PX_ANALOG_IN; +} + +static inline int px_digital_in(const struct echoaudio *chip) +{ + return PX_DIGITAL_IN; +} + +static inline int px_num(const struct echoaudio *chip) +{ + return PX_NUM; +} + +static inline int bx_digital_out(const struct echoaudio *chip) +{ + return BX_DIGITAL_OUT; +} + +static inline int bx_analog_in(const struct echoaudio *chip) +{ + return BX_ANALOG_IN; +} + +static inline int bx_digital_in(const struct echoaudio *chip) +{ + return BX_DIGITAL_IN; +} + +static inline int bx_num(const struct echoaudio *chip) +{ + return BX_NUM; +} + +static inline int num_pipes_out(const struct echoaudio *chip) +{ + return px_analog_in(chip); +} + +static inline int num_pipes_in(const struct echoaudio *chip) +{ + return px_num(chip) - px_analog_in(chip); +} + +static inline int num_busses_out(const struct echoaudio *chip) +{ + return bx_analog_in(chip); +} + +static inline int num_busses_in(const struct echoaudio *chip) +{ + return bx_num(chip) - bx_analog_in(chip); +} + +static inline int num_analog_busses_out(const struct echoaudio *chip) +{ + return bx_digital_out(chip); +} + +static inline int num_analog_busses_in(const struct echoaudio *chip) +{ + return bx_digital_in(chip) - bx_analog_in(chip); +} + +static inline int num_digital_busses_out(const struct echoaudio *chip) +{ + return num_busses_out(chip) - num_analog_busses_out(chip); +} + +static inline int num_digital_busses_in(const struct echoaudio *chip) +{ + return num_busses_in(chip) - num_analog_busses_in(chip); +} + +/* The monitor array is a one-dimensional array; compute the offset + * into the array */ +static inline int monitor_index(const struct echoaudio *chip, int out, int in) +{ + return out * num_busses_in(chip) + in; +} + + +#ifndef pci_device +#define pci_device(chip) (&chip->pci->dev) +#endif + + +#endif /* _ECHOAUDIO_H_ */ |