static int snd_usb_caiaq_pcm_hw_params(struct snd_pcm_substream *sub, struct snd_pcm_hw_params *hw_params) { debug("%s(%p)\n", __func__, sub); return snd_pcm_lib_malloc_pages(sub, params_buffer_bytes(hw_params)); }
static int davinci_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params) { return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); }
static int snd_ad1816a_hw_params(snd_pcm_substream_t * substream, snd_pcm_hw_params_t * hw_params) { return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); }
int snd_mixart_kill_ref_pipe(struct mixart_mgr *mgr, struct mixart_pipe *pipe, int monitoring) { int err = 0; if(pipe->status == PIPE_UNDEFINED) return 0; if(monitoring) pipe->monitoring = 0; else pipe->references--; if((pipe->references <= 0) && (pipe->monitoring == 0)) { struct mixart_msg request; struct mixart_delete_group_resp delete_resp; /* release the clock */ err = mixart_set_clock( mgr, pipe, 0); if( err < 0 ) { snd_printk(KERN_ERR "mixart_set_clock(0) return error!\n"); } /* stop the pipe */ err = mixart_set_pipe_state(mgr, pipe, 0); if( err < 0 ) { snd_printk(KERN_ERR "error stopping pipe!\n"); } request.message_id = MSG_STREAM_DELETE_GROUP; request.uid = (struct mixart_uid){0,0}; request.data = &pipe->group_uid; /* the streaming group ! */ request.size = sizeof(pipe->group_uid); /* delete the pipe */ err = snd_mixart_send_msg(mgr, &request, sizeof(delete_resp), &delete_resp); if ((err < 0) || (delete_resp.status != 0)) { snd_printk(KERN_ERR "error MSG_STREAM_DELETE_GROUP err(%x), status(%x)\n", err, delete_resp.status); } pipe->group_uid = (struct mixart_uid){0,0}; pipe->stream_count = 0; pipe->status = PIPE_UNDEFINED; } return err; } static int mixart_set_stream_state(struct mixart_stream *stream, int start) { struct snd_mixart *chip; struct mixart_stream_state_req stream_state_req; struct mixart_msg request; if(!stream->substream) return -EINVAL; memset(&stream_state_req, 0, sizeof(stream_state_req)); stream_state_req.stream_count = 1; stream_state_req.stream_info.stream_desc.uid_pipe = stream->pipe->group_uid; stream_state_req.stream_info.stream_desc.stream_idx = stream->substream->number; if (stream->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) request.message_id = start ? MSG_STREAM_START_INPUT_STAGE_PACKET : MSG_STREAM_STOP_INPUT_STAGE_PACKET; else request.message_id = start ? MSG_STREAM_START_OUTPUT_STAGE_PACKET : MSG_STREAM_STOP_OUTPUT_STAGE_PACKET; request.uid = (struct mixart_uid){0,0}; request.data = &stream_state_req; request.size = sizeof(stream_state_req); stream->abs_period_elapsed = 0; /* reset stream pos */ stream->buf_periods = 0; stream->buf_period_frag = 0; chip = snd_pcm_substream_chip(stream->substream); return snd_mixart_send_msg_nonblock(chip->mgr, &request); } /* * Trigger callback */ static int snd_mixart_trigger(struct snd_pcm_substream *subs, int cmd) { struct mixart_stream *stream = subs->runtime->private_data; switch (cmd) { case SNDRV_PCM_TRIGGER_START: snd_printdd("SNDRV_PCM_TRIGGER_START\n"); /* START_STREAM */ if( mixart_set_stream_state(stream, 1) ) return -EINVAL; stream->status = MIXART_STREAM_STATUS_RUNNING; break; case SNDRV_PCM_TRIGGER_STOP: /* STOP_STREAM */ if( mixart_set_stream_state(stream, 0) ) return -EINVAL; stream->status = MIXART_STREAM_STATUS_OPEN; snd_printdd("SNDRV_PCM_TRIGGER_STOP\n"); break; case SNDRV_PCM_TRIGGER_PAUSE_PUSH: /* TODO */ stream->status = MIXART_STREAM_STATUS_PAUSE; snd_printdd("SNDRV_PCM_PAUSE_PUSH\n"); break; case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: /* TODO */ stream->status = MIXART_STREAM_STATUS_RUNNING; snd_printdd("SNDRV_PCM_PAUSE_RELEASE\n"); break; default: return -EINVAL; } return 0; } static int mixart_sync_nonblock_events(struct mixart_mgr *mgr) { unsigned long timeout = jiffies + HZ; while (atomic_read(&mgr->msg_processed) > 0) { if (time_after(jiffies, timeout)) { snd_printk(KERN_ERR "mixart: cannot process nonblock events!\n"); return -EBUSY; } schedule_timeout_uninterruptible(1); } return 0; } /* * prepare callback for all pcms */ static int snd_mixart_prepare(struct snd_pcm_substream *subs) { struct snd_mixart *chip = snd_pcm_substream_chip(subs); struct mixart_stream *stream = subs->runtime->private_data; /* TODO de façon non bloquante, réappliquer les hw_params (rate, bits, codec) */ snd_printdd("snd_mixart_prepare\n"); mixart_sync_nonblock_events(chip->mgr); /* only the first stream can choose the sample rate */ /* the further opened streams will be limited to its frequency (see open) */ if(chip->mgr->ref_count_rate == 1) chip->mgr->sample_rate = subs->runtime->rate; /* set the clock only once (first stream) on the same pipe */ if(stream->pipe->references == 1) { if( mixart_set_clock(chip->mgr, stream->pipe, subs->runtime->rate) ) return -EINVAL; } return 0; } static int mixart_set_format(struct mixart_stream *stream, snd_pcm_format_t format) { int err; struct snd_mixart *chip; struct mixart_msg request; struct mixart_stream_param_desc stream_param; struct mixart_return_uid resp; chip = snd_pcm_substream_chip(stream->substream); memset(&stream_param, 0, sizeof(stream_param)); stream_param.coding_type = CT_LINEAR; stream_param.number_of_channel = stream->channels; stream_param.sampling_freq = chip->mgr->sample_rate; if(stream_param.sampling_freq == 0) stream_param.sampling_freq = 44100; /* if frequency not yet defined, use some default */ switch(format){ case SNDRV_PCM_FORMAT_U8: stream_param.sample_type = ST_INTEGER_8; stream_param.sample_size = 8; break; case SNDRV_PCM_FORMAT_S16_LE: stream_param.sample_type = ST_INTEGER_16LE; stream_param.sample_size = 16; break; case SNDRV_PCM_FORMAT_S16_BE: stream_param.sample_type = ST_INTEGER_16BE; stream_param.sample_size = 16; break; case SNDRV_PCM_FORMAT_S24_3LE: stream_param.sample_type = ST_INTEGER_24LE; stream_param.sample_size = 24; break; case SNDRV_PCM_FORMAT_S24_3BE: stream_param.sample_type = ST_INTEGER_24BE; stream_param.sample_size = 24; break; case SNDRV_PCM_FORMAT_FLOAT_LE: stream_param.sample_type = ST_FLOATING_POINT_32LE; stream_param.sample_size = 32; break; case SNDRV_PCM_FORMAT_FLOAT_BE: stream_param.sample_type = ST_FLOATING_POINT_32BE; stream_param.sample_size = 32; break; default: snd_printk(KERN_ERR "error mixart_set_format() : unknown format\n"); return -EINVAL; } snd_printdd("set SNDRV_PCM_FORMAT sample_type(%d) sample_size(%d) freq(%d) channels(%d)\n", stream_param.sample_type, stream_param.sample_size, stream_param.sampling_freq, stream->channels); /* TODO: what else to configure ? */ /* stream_param.samples_per_frame = 2; */ /* stream_param.bytes_per_frame = 4; */ /* stream_param.bytes_per_sample = 2; */ stream_param.pipe_count = 1; /* set to 1 */ stream_param.stream_count = 1; /* set to 1 */ stream_param.stream_desc[0].uid_pipe = stream->pipe->group_uid; stream_param.stream_desc[0].stream_idx = stream->substream->number; request.message_id = MSG_STREAM_SET_INPUT_STAGE_PARAM; request.uid = (struct mixart_uid){0,0}; request.data = &stream_param; request.size = sizeof(stream_param); err = snd_mixart_send_msg(chip->mgr, &request, sizeof(resp), &resp); if((err < 0) || resp.error_code) { snd_printk(KERN_ERR "MSG_STREAM_SET_INPUT_STAGE_PARAM err=%x; resp=%x\n", err, resp.error_code); return -EINVAL; } return 0; } /* * HW_PARAMS callback for all pcms */ static int snd_mixart_hw_params(struct snd_pcm_substream *subs, struct snd_pcm_hw_params *hw) { struct snd_mixart *chip = snd_pcm_substream_chip(subs); struct mixart_mgr *mgr = chip->mgr; struct mixart_stream *stream = subs->runtime->private_data; snd_pcm_format_t format; int err; int channels; /* set up channels */ channels = params_channels(hw); /* set up format for the stream */ format = params_format(hw); mutex_lock(&mgr->setup_mutex); /* update the stream levels */ if( stream->pcm_number <= MIXART_PCM_DIGITAL ) { int is_aes = stream->pcm_number > MIXART_PCM_ANALOG; if( subs->stream == SNDRV_PCM_STREAM_PLAYBACK ) mixart_update_playback_stream_level(chip, is_aes, subs->number); else mixart_update_capture_stream_level( chip, is_aes); } stream->channels = channels; /* set the format to the board */ err = mixart_set_format(stream, format); if(err < 0) { return err; } /* allocate buffer */ err = snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw)); if (err > 0) { struct mixart_bufferinfo *bufferinfo; int i = (chip->chip_idx * MIXART_MAX_STREAM_PER_CARD) + (stream->pcm_number * (MIXART_PLAYBACK_STREAMS+MIXART_CAPTURE_STREAMS)) + subs->number; if( subs->stream == SNDRV_PCM_STREAM_CAPTURE ) { i += MIXART_PLAYBACK_STREAMS; /* in array capture is behind playback */ } bufferinfo = (struct mixart_bufferinfo *)chip->mgr->bufferinfo.area; bufferinfo[i].buffer_address = subs->runtime->dma_addr; bufferinfo[i].available_length = subs->runtime->dma_bytes; /* bufferinfo[i].buffer_id is already defined */ snd_printdd("snd_mixart_hw_params(pcm %d) : dma_addr(%x) dma_bytes(%x) subs-number(%d)\n", i, bufferinfo[i].buffer_address, bufferinfo[i].available_length, subs->number); } mutex_unlock(&mgr->setup_mutex); return err; } static int snd_mixart_hw_free(struct snd_pcm_substream *subs) { struct snd_mixart *chip = snd_pcm_substream_chip(subs); snd_pcm_lib_free_pages(subs); mixart_sync_nonblock_events(chip->mgr); return 0; } /* * TODO CONFIGURATION SPACE for all pcms, mono pcm must update channels_max */ static struct snd_pcm_hardware snd_mixart_analog_caps = { .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE), .formats = ( SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ), .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, .rate_min = 8000, .rate_max = 48000, .channels_min = 1, .channels_max = 2, .buffer_bytes_max = (32*1024), .period_bytes_min = 256, /* 256 frames U8 mono*/ .period_bytes_max = (16*1024), .periods_min = 2, .periods_max = (32*1024/256), }; static struct snd_pcm_hardware snd_mixart_digital_caps = { .info = ( SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_PAUSE), .formats = ( SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE | SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_3BE | SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE ), .rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000, .rate_min = 32000, .rate_max = 48000, .channels_min = 1, .channels_max = 2, .buffer_bytes_max = (32*1024), .period_bytes_min = 256, /* 256 frames U8 mono*/ .period_bytes_max = (16*1024), .periods_min = 2, .periods_max = (32*1024/256), }; static int snd_mixart_playback_open(struct snd_pcm_substream *subs) { struct snd_mixart *chip = snd_pcm_substream_chip(subs); struct mixart_mgr *mgr = chip->mgr; struct snd_pcm_runtime *runtime = subs->runtime; struct snd_pcm *pcm = subs->pcm; struct mixart_stream *stream; struct mixart_pipe *pipe; int err = 0; int pcm_number; mutex_lock(&mgr->setup_mutex); if ( pcm == chip->pcm ) { pcm_number = MIXART_PCM_ANALOG; runtime->hw = snd_mixart_analog_caps; } else { snd_assert ( pcm == chip->pcm_dig ); pcm_number = MIXART_PCM_DIGITAL; runtime->hw = snd_mixart_digital_caps; } snd_printdd("snd_mixart_playback_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number); /* get stream info */ stream = &(chip->playback_stream[pcm_number][subs->number]); if (stream->status != MIXART_STREAM_STATUS_FREE){ /* streams in use */ snd_printk(KERN_ERR "snd_mixart_playback_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number); err = -EBUSY; goto _exit_open; } /* get pipe pointer (out pipe) */ pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 0, 0); if (pipe == NULL) { err = -EINVAL; goto _exit_open; } /* start the pipe if necessary */ err = mixart_set_pipe_state(chip->mgr, pipe, 1); if( err < 0 ) { snd_printk(KERN_ERR "error starting pipe!\n"); snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0); err = -EINVAL; goto _exit_open; } stream->pipe = pipe; stream->pcm_number = pcm_number; stream->status = MIXART_STREAM_STATUS_OPEN; stream->substream = subs; stream->channels = 0; /* not configured yet */ runtime->private_data = stream; snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32); snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64); /* if a sample rate is already used, another stream cannot change */ if(mgr->ref_count_rate++) { if(mgr->sample_rate) { runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate; } } _exit_open: mutex_unlock(&mgr->setup_mutex); return err; } static int snd_mixart_capture_open(struct snd_pcm_substream *subs) { struct snd_mixart *chip = snd_pcm_substream_chip(subs); struct mixart_mgr *mgr = chip->mgr; struct snd_pcm_runtime *runtime = subs->runtime; struct snd_pcm *pcm = subs->pcm; struct mixart_stream *stream; struct mixart_pipe *pipe; int err = 0; int pcm_number; mutex_lock(&mgr->setup_mutex); if ( pcm == chip->pcm ) { pcm_number = MIXART_PCM_ANALOG; runtime->hw = snd_mixart_analog_caps; } else { snd_assert ( pcm == chip->pcm_dig ); pcm_number = MIXART_PCM_DIGITAL; runtime->hw = snd_mixart_digital_caps; } runtime->hw.channels_min = 2; /* for instance, no mono */ snd_printdd("snd_mixart_capture_open C%d/P%d/Sub%d\n", chip->chip_idx, pcm_number, subs->number); /* get stream info */ stream = &(chip->capture_stream[pcm_number]); if (stream->status != MIXART_STREAM_STATUS_FREE){ /* streams in use */ snd_printk(KERN_ERR "snd_mixart_capture_open C%d/P%d/Sub%d in use\n", chip->chip_idx, pcm_number, subs->number); err = -EBUSY; goto _exit_open; } /* get pipe pointer (in pipe) */ pipe = snd_mixart_add_ref_pipe(chip, pcm_number, 1, 0); if (pipe == NULL) { err = -EINVAL; goto _exit_open; } /* start the pipe if necessary */ err = mixart_set_pipe_state(chip->mgr, pipe, 1); if( err < 0 ) { snd_printk(KERN_ERR "error starting pipe!\n"); snd_mixart_kill_ref_pipe(chip->mgr, pipe, 0); err = -EINVAL; goto _exit_open; } stream->pipe = pipe; stream->pcm_number = pcm_number; stream->status = MIXART_STREAM_STATUS_OPEN; stream->substream = subs; stream->channels = 0; /* not configured yet */ runtime->private_data = stream; snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 32); snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 64); /* if a sample rate is already used, another stream cannot change */ if(mgr->ref_count_rate++) { if(mgr->sample_rate) { runtime->hw.rate_min = runtime->hw.rate_max = mgr->sample_rate; } } _exit_open: mutex_unlock(&mgr->setup_mutex); return err; } static int snd_mixart_close(struct snd_pcm_substream *subs) { struct snd_mixart *chip = snd_pcm_substream_chip(subs); struct mixart_mgr *mgr = chip->mgr; struct mixart_stream *stream = subs->runtime->private_data; mutex_lock(&mgr->setup_mutex); snd_printdd("snd_mixart_close C%d/P%d/Sub%d\n", chip->chip_idx, stream->pcm_number, subs->number); /* sample rate released */ if(--mgr->ref_count_rate == 0) { mgr->sample_rate = 0; } /* delete pipe */ if (snd_mixart_kill_ref_pipe(mgr, stream->pipe, 0 ) < 0) { snd_printk(KERN_ERR "error snd_mixart_kill_ref_pipe C%dP%d\n", chip->chip_idx, stream->pcm_number); } stream->pipe = NULL; stream->status = MIXART_STREAM_STATUS_FREE; stream->substream = NULL; mutex_unlock(&mgr->setup_mutex); return 0; } static snd_pcm_uframes_t snd_mixart_stream_pointer(struct snd_pcm_substream *subs) { struct snd_pcm_runtime *runtime = subs->runtime; struct mixart_stream *stream = runtime->private_data; return (snd_pcm_uframes_t)((stream->buf_periods * runtime->period_size) + stream->buf_period_frag); } static struct snd_pcm_ops snd_mixart_playback_ops = { .open = snd_mixart_playback_open, .close = snd_mixart_close, .ioctl = snd_pcm_lib_ioctl, .prepare = snd_mixart_prepare, .hw_params = snd_mixart_hw_params, .hw_free = snd_mixart_hw_free, .trigger = snd_mixart_trigger, .pointer = snd_mixart_stream_pointer, }; static struct snd_pcm_ops snd_mixart_capture_ops = { .open = snd_mixart_capture_open, .close = snd_mixart_close, .ioctl = snd_pcm_lib_ioctl, .prepare = snd_mixart_prepare, .hw_params = snd_mixart_hw_params, .hw_free = snd_mixart_hw_free, .trigger = snd_mixart_trigger, .pointer = snd_mixart_stream_pointer, }; static void preallocate_buffers(struct snd_mixart *chip, struct snd_pcm *pcm) { #if 0 struct snd_pcm_substream *subs; int stream; for (stream = 0; stream < 2; stream++) { int idx = 0; for (subs = pcm->streams[stream].substream; subs; subs = subs->next, idx++) /* set up the unique device id with the chip index */ subs->dma_device.id = subs->pcm->device << 16 | subs->stream << 8 | (subs->number + 1) | (chip->chip_idx + 1) << 24; } #endif snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(chip->mgr->pci), 32*1024, 32*1024); } /* */ static int snd_mixart_pcm_analog(struct snd_mixart *chip) { int err; struct snd_pcm *pcm; char name[32]; sprintf(name, "miXart analog %d", chip->chip_idx); if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_ANALOG, MIXART_PLAYBACK_STREAMS, MIXART_CAPTURE_STREAMS, &pcm)) < 0) { snd_printk(KERN_ERR "cannot create the analog pcm %d\n", chip->chip_idx); return err; } pcm->private_data = chip; snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops); pcm->info_flags = 0; strcpy(pcm->name, name); preallocate_buffers(chip, pcm); chip->pcm = pcm; return 0; } /* */ static int snd_mixart_pcm_digital(struct snd_mixart *chip) { int err; struct snd_pcm *pcm; char name[32]; sprintf(name, "miXart AES/EBU %d", chip->chip_idx); if ((err = snd_pcm_new(chip->card, name, MIXART_PCM_DIGITAL, MIXART_PLAYBACK_STREAMS, MIXART_CAPTURE_STREAMS, &pcm)) < 0) { snd_printk(KERN_ERR "cannot create the digital pcm %d\n", chip->chip_idx); return err; } pcm->private_data = chip; snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_mixart_playback_ops); snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_mixart_capture_ops); pcm->info_flags = 0; strcpy(pcm->name, name); preallocate_buffers(chip, pcm); chip->pcm_dig = pcm; return 0; } static int snd_mixart_chip_free(struct snd_mixart *chip) { kfree(chip); return 0; } static int snd_mixart_chip_dev_free(struct snd_device *device) { struct snd_mixart *chip = device->device_data; return snd_mixart_chip_free(chip); } /* */ static int __devinit snd_mixart_create(struct mixart_mgr *mgr, struct snd_card *card, int idx) { int err; struct snd_mixart *chip; static struct snd_device_ops ops = { .dev_free = snd_mixart_chip_dev_free, }; mgr->chip[idx] = chip = kzalloc(sizeof(*chip), GFP_KERNEL); if (! chip) { snd_printk(KERN_ERR "cannot allocate chip\n"); return -ENOMEM; } chip->card = card; chip->chip_idx = idx; chip->mgr = mgr; if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { snd_mixart_chip_free(chip); return err; } snd_card_set_dev(card, &mgr->pci->dev); return 0; }
static int loopback_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); }
/* this may get called several times by oss emulation */ static int hsw_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_pcm_runtime *runtime = substream->runtime; struct hsw_priv_data *pdata = snd_soc_platform_get_drvdata(rtd->platform); struct hsw_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd); struct sst_hsw *hsw = pdata->hsw; struct sst_module *module_data; struct sst_dsp *dsp; enum sst_hsw_stream_type stream_type; enum sst_hsw_stream_path_id path_id; u32 rate, bits, map, pages, module_id; u8 channels; int ret; /* stream direction */ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) path_id = SST_HSW_STREAM_PATH_SSP0_OUT; else path_id = SST_HSW_STREAM_PATH_SSP0_IN; /* DSP stream type depends on DAI ID */ switch (rtd->cpu_dai->id) { case 0: stream_type = SST_HSW_STREAM_TYPE_SYSTEM; module_id = SST_HSW_MODULE_PCM_SYSTEM; break; case 1: case 2: stream_type = SST_HSW_STREAM_TYPE_RENDER; module_id = SST_HSW_MODULE_PCM; break; case 3: /* path ID needs to be OUT for loopback */ stream_type = SST_HSW_STREAM_TYPE_LOOPBACK; path_id = SST_HSW_STREAM_PATH_SSP0_OUT; module_id = SST_HSW_MODULE_PCM_REFERENCE; break; case 4: stream_type = SST_HSW_STREAM_TYPE_CAPTURE; module_id = SST_HSW_MODULE_PCM_CAPTURE; break; default: dev_err(rtd->dev, "error: invalid DAI ID %d\n", rtd->cpu_dai->id); return -EINVAL; }; ret = sst_hsw_stream_format(hsw, pcm_data->stream, path_id, stream_type, SST_HSW_STREAM_FORMAT_PCM_FORMAT); if (ret < 0) { dev_err(rtd->dev, "error: failed to set format %d\n", ret); return ret; } rate = params_rate(params); ret = sst_hsw_stream_set_rate(hsw, pcm_data->stream, rate); if (ret < 0) { dev_err(rtd->dev, "error: could not set rate %d\n", rate); return ret; } switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: bits = SST_HSW_DEPTH_16BIT; sst_hsw_stream_set_valid(hsw, pcm_data->stream, 16); break; case SNDRV_PCM_FORMAT_S24_LE: bits = SST_HSW_DEPTH_24BIT; sst_hsw_stream_set_valid(hsw, pcm_data->stream, 32); break; default: dev_err(rtd->dev, "error: invalid format %d\n", params_format(params)); return -EINVAL; } ret = sst_hsw_stream_set_bits(hsw, pcm_data->stream, bits); if (ret < 0) { dev_err(rtd->dev, "error: could not set bits %d\n", bits); return ret; } /* we only support stereo atm */ channels = params_channels(params); if (channels != 2) { dev_err(rtd->dev, "error: invalid channels %d\n", channels); return -EINVAL; } map = create_channel_map(SST_HSW_CHANNEL_CONFIG_STEREO); sst_hsw_stream_set_map_config(hsw, pcm_data->stream, map, SST_HSW_CHANNEL_CONFIG_STEREO); ret = sst_hsw_stream_set_channels(hsw, pcm_data->stream, channels); if (ret < 0) { dev_err(rtd->dev, "error: could not set channels %d\n", channels); return ret; } ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); if (ret < 0) { dev_err(rtd->dev, "error: could not allocate %d bytes for PCM %d\n", params_buffer_bytes(params), ret); return ret; } ret = create_adsp_page_table(pdata, rtd, runtime->dma_area, runtime->dma_bytes, rtd->cpu_dai->id, substream->stream); if (ret < 0) return ret; sst_hsw_stream_set_style(hsw, pcm_data->stream, SST_HSW_INTERLEAVING_PER_CHANNEL); if (runtime->dma_bytes % PAGE_SIZE) pages = (runtime->dma_bytes / PAGE_SIZE) + 1; else pages = runtime->dma_bytes / PAGE_SIZE; ret = sst_hsw_stream_buffer(hsw, pcm_data->stream, virt_to_phys(pdata->pcm_pg[rtd->cpu_dai->id][substream->stream]), pages, runtime->dma_bytes, 0, (u32)(virt_to_phys(runtime->dma_area) >> PAGE_SHIFT)); if (ret < 0) { dev_err(rtd->dev, "error: failed to set DMA buffer %d\n", ret); return ret; } dsp = sst_hsw_get_dsp(hsw); module_data = sst_module_get_from_id(dsp, module_id); if (module_data == NULL) { dev_err(rtd->dev, "error: failed to get module config\n"); return -EINVAL; } /* we use hardcoded memory offsets atm, will be updated for new FW */ if (stream_type == SST_HSW_STREAM_TYPE_CAPTURE) { sst_hsw_stream_set_module_info(hsw, pcm_data->stream, SST_HSW_MODULE_PCM_CAPTURE, module_data->entry); sst_hsw_stream_set_pmemory_info(hsw, pcm_data->stream, 0x449400, 0x4000); sst_hsw_stream_set_smemory_info(hsw, pcm_data->stream, 0x400000, 0); } else { /* stream_type == SST_HSW_STREAM_TYPE_SYSTEM */ sst_hsw_stream_set_module_info(hsw, pcm_data->stream, SST_HSW_MODULE_PCM_SYSTEM, module_data->entry); sst_hsw_stream_set_pmemory_info(hsw, pcm_data->stream, module_data->offset, module_data->size); sst_hsw_stream_set_pmemory_info(hsw, pcm_data->stream, 0x44d400, 0x3800); sst_hsw_stream_set_smemory_info(hsw, pcm_data->stream, module_data->offset, module_data->size); sst_hsw_stream_set_smemory_info(hsw, pcm_data->stream, 0x400000, 0); } ret = sst_hsw_stream_commit(hsw, pcm_data->stream); if (ret < 0) { dev_err(rtd->dev, "error: failed to commit stream %d\n", ret); return ret; } ret = sst_hsw_stream_pause(hsw, pcm_data->stream, 1); if (ret < 0) dev_err(rtd->dev, "error: failed to pause %d\n", ret); return 0; }
/* hw_params callback */ static int snd_ca0106_pcm_hw_params_capture(snd_pcm_substream_t *substream, snd_pcm_hw_params_t * hw_params) { return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); }
/* this may get called several times by oss emulation */ static int sst_byt_pcm_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct sst_byt_priv_data *pdata = snd_soc_platform_get_drvdata(rtd->platform); struct sst_byt_pcm_data *pcm_data = snd_soc_pcm_get_drvdata(rtd); struct sst_byt *byt = pdata->byt; u32 rate, bits; u8 channels; int ret, playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK); dev_dbg(rtd->dev, "PCM: hw_params, pcm_data %p\n", pcm_data); ret = sst_byt_stream_type(byt, pcm_data->stream, 1, 1, !playback); if (ret < 0) { dev_err(rtd->dev, "failed to set stream format %d\n", ret); return ret; } rate = params_rate(params); ret = sst_byt_stream_set_rate(byt, pcm_data->stream, rate); if (ret < 0) { dev_err(rtd->dev, "could not set rate %d\n", rate); return ret; } bits = snd_pcm_format_width(params_format(params)); ret = sst_byt_stream_set_bits(byt, pcm_data->stream, bits); if (ret < 0) { dev_err(rtd->dev, "could not set formats %d\n", params_rate(params)); return ret; } channels = (u8)(params_channels(params) & 0xF); ret = sst_byt_stream_set_channels(byt, pcm_data->stream, channels); if (ret < 0) { dev_err(rtd->dev, "could not set channels %d\n", params_rate(params)); return ret; } snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); ret = sst_byt_stream_buffer(byt, pcm_data->stream, substream->dma_buffer.addr, params_buffer_bytes(params)); if (ret < 0) { dev_err(rtd->dev, "PCM: failed to set DMA buffer %d\n", ret); return ret; } ret = sst_byt_stream_commit(byt, pcm_data->stream); if (ret < 0) { dev_err(rtd->dev, "PCM: failed stream commit %d\n", ret); return ret; } return 0; }
/* hw_params callback */ static int snd_vortex_pcm_hw_params(snd_pcm_substream_t * substream, snd_pcm_hw_params_t * hw_params) { vortex_t *chip = snd_pcm_substream_chip(substream); stream_t *stream = (stream_t *) (substream->runtime->private_data); snd_pcm_sgbuf_t *sgbuf; int err; // Alloc buffer memory. err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); if (err < 0) { printk(KERN_ERR "Vortex: pcm page alloc failed!\n"); return err; } //sgbuf = (snd_pcm_sgbuf_t *) substream->runtime->dma_private; sgbuf = snd_pcm_substream_sgbuf(substream); /* printk(KERN_INFO "Vortex: periods %d, period_bytes %d, channels = %d\n", params_periods(hw_params), params_period_bytes(hw_params), params_channels(hw_params)); */ spin_lock_irq(&chip->lock); // Make audio routes and config buffer DMA. if (VORTEX_PCM_TYPE(substream->pcm) != VORTEX_PCM_WT) { int dma, type = VORTEX_PCM_TYPE(substream->pcm); /* Dealloc any routes. */ if (stream != NULL) vortex_adb_allocroute(chip, stream->dma, stream->nr_ch, stream->dir, stream->type); /* Alloc routes. */ dma = vortex_adb_allocroute(chip, -1, params_channels(hw_params), substream->stream, type); if (dma < 0) { spin_unlock_irq(&chip->lock); return dma; } stream = substream->runtime->private_data = &chip->dma_adb[dma]; stream->substream = substream; /* Setup Buffers. */ vortex_adbdma_setbuffers(chip, dma, sgbuf, params_period_bytes(hw_params), params_periods(hw_params)); } #ifndef CHIP_AU8810 else { /* if (stream != NULL) vortex_wt_allocroute(chip, substream->number, 0); */ vortex_wt_allocroute(chip, substream->number, params_channels(hw_params)); stream = substream->runtime->private_data = &chip->dma_wt[substream->number]; stream->dma = substream->number; stream->substream = substream; vortex_wtdma_setbuffers(chip, substream->number, sgbuf, params_period_bytes(hw_params), params_periods(hw_params)); } #endif spin_unlock_irq(&chip->lock); return 0; }