diff options
author | Liam Girdwood <liam.r.girdwood@linux.intel.com> | 2013-05-21 10:25:51 +0100 |
---|---|---|
committer | Sachin Nikam <snikam@nvidia.com> | 2014-01-23 06:15:51 -0800 |
commit | 8c41714b4a0569519c357853fab725bacebe6c4a (patch) | |
tree | 047b752e915a7146b6eae538e15e54b4c66fc64f | |
parent | 10d61f632293e8b637d97b6803dd8158e8ba4ed1 (diff) |
ASoC: compress: Add suport for DPCM into compressed audio
Allow compressed audio streams to traverse the DAPM graph of DAIs
like PCM streams.
Change-Id: Id92f154ed1812b0dadcde2dc0aecb4cc393f17da
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Sumit Bhattacharya <sumitb@nvidia.com>
Reviewed-on: http://git-master/r/358239
Reviewed-by: Ravindra Lokhande <rlokhande@nvidia.com>
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
-rw-r--r-- | include/sound/compress_driver.h | 2 | ||||
-rw-r--r-- | include/sound/soc.h | 1 | ||||
-rw-r--r-- | sound/soc/soc-compress.c | 227 |
3 files changed, 229 insertions, 1 deletions
diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h index ae6c3b8ed2f5..2b2d2fb1e8cd 100644 --- a/include/sound/compress_driver.h +++ b/include/sound/compress_driver.h @@ -32,6 +32,7 @@ #include <sound/pcm.h> struct snd_compr_ops; +struct snd_pcm_substream; /** * struct snd_compr_runtime: runtime stream description @@ -59,6 +60,7 @@ struct snd_compr_runtime { u64 total_bytes_available; u64 total_bytes_transferred; wait_queue_head_t sleep; + struct snd_pcm_substream *fe_substream; void *private_data; }; diff --git a/include/sound/soc.h b/include/sound/soc.h index 85c15226103b..5bbdc653a826 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -1063,6 +1063,7 @@ struct snd_soc_pcm_runtime { /* Dynamic PCM BE runtime data */ struct snd_soc_dpcm_runtime dpcm[2]; + int fe_compr; long pmdown_time; unsigned char pop_wait:1; diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 06a8000aa07b..575320616fea 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -24,6 +24,7 @@ #include <sound/compress_driver.h> #include <sound/soc.h> #include <sound/initval.h> +#include <sound/soc-dpcm.h> static int soc_compr_open(struct snd_compr_stream *cstream) { @@ -75,6 +76,77 @@ out: return ret; } +static int soc_compr_open_fe(struct snd_compr_stream *cstream) +{ + struct snd_soc_pcm_runtime *fe = cstream->private_data; + struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; + struct snd_soc_platform *platform = fe->platform; + struct snd_soc_dpcm *dpcm; + struct snd_soc_dapm_widget_list *list; + int stream; + int ret = 0; + + if (cstream->direction == SND_COMPRESS_PLAYBACK) + stream = SNDRV_PCM_STREAM_PLAYBACK; + else + stream = SNDRV_PCM_STREAM_CAPTURE; + + mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); + + if (platform->driver->compr_ops && platform->driver->compr_ops->open) { + ret = platform->driver->compr_ops->open(cstream); + if (ret < 0) { + pr_err("compress asoc: can't open platform %s\n", platform->name); + goto out; + } + } + + if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) { + ret = fe->dai_link->compr_ops->startup(cstream); + if (ret < 0) { + pr_err("compress asoc: %s startup failed\n", fe->dai_link->name); + goto machine_err; + } + } + + fe->dpcm[stream].runtime = fe_substream->runtime; + + if (dpcm_path_get(fe, stream, &list) <= 0) { + dev_dbg(fe->dev, "ASoC: %s no valid %s route\n", + fe->dai_link->name, stream ? "capture" : "playback"); + } + + /* calculate valid and active FE <-> BE dpcms */ + dpcm_process_paths(fe, stream, &list, 1); + + ret = dpcm_be_dai_startup(fe, stream); + if (ret < 0) { + /* clean up all links */ + list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) + dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; + + dpcm_be_disconnect(fe, stream); + fe->dpcm[stream].runtime = NULL; + goto fe_err; + } + + dpcm_clear_pending_state(fe, stream); + dpcm_path_put(&list); + + mutex_unlock(&fe->card->mutex); + + return 0; + +fe_err: + if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) + fe->dai_link->compr_ops->shutdown(cstream); +machine_err: + if (platform->driver->compr_ops && platform->driver->compr_ops->free) + platform->driver->compr_ops->free(cstream); +out: + mutex_unlock(&fe->card->mutex); + return ret; +} /* * Power down the audio subsystem pmdown_time msecs after close is called. * This is to ensure there are no pops or clicks in between any music tracks @@ -163,6 +235,45 @@ static int soc_compr_free(struct snd_compr_stream *cstream) return 0; } +static int soc_compr_free_fe(struct snd_compr_stream *cstream) +{ + struct snd_soc_pcm_runtime *fe = cstream->private_data; + struct snd_soc_platform *platform = fe->platform; + struct snd_soc_dpcm *dpcm; + int stream, ret; + + if (cstream->direction == SND_COMPRESS_PLAYBACK) + stream = SNDRV_PCM_STREAM_PLAYBACK; + else + stream = SNDRV_PCM_STREAM_CAPTURE; + + mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); + + ret = dpcm_be_dai_hw_free(fe, stream); + if (ret < 0) + dev_err(fe->dev, "compressed hw_free failed %d\n", ret); + + ret = dpcm_be_dai_shutdown(fe, stream); + + /* mark FE's links ready to prune */ + list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be) + dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE; + + dpcm_be_disconnect(fe, stream); + + fe->dpcm[stream].runtime = NULL; + + if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) + fe->dai_link->compr_ops->shutdown(cstream); + + if (platform->driver->compr_ops && platform->driver->compr_ops->free) + platform->driver->compr_ops->free(cstream); + //cpu_dai->runtime = NULL; + + mutex_unlock(&fe->card->mutex); + return 0; +} + static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd) { @@ -193,6 +304,33 @@ out: return ret; } +static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) +{ + struct snd_soc_pcm_runtime *fe = cstream->private_data; + struct snd_soc_platform *platform = fe->platform; + int ret = 0, stream; + + if (cstream->direction == SND_COMPRESS_PLAYBACK) + stream = SNDRV_PCM_STREAM_PLAYBACK; + else + stream = SNDRV_PCM_STREAM_CAPTURE; + + + mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); + + if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { + ret = platform->driver->compr_ops->trigger(cstream, cmd); + if (ret < 0) + goto out; + } + + ret = dpcm_be_dai_trigger(fe, stream, cmd); + +out: + mutex_unlock(&fe->card->mutex); + return ret; +} + static int soc_compr_set_params(struct snd_compr_stream *cstream, struct snd_compr_params *params) { @@ -240,6 +378,60 @@ err: return ret; } +static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, + struct snd_compr_params *params) +{ + struct snd_soc_pcm_runtime *fe = cstream->private_data; + struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; + struct snd_soc_platform *platform = fe->platform; + struct snd_pcm_hw_params *hw_params; + int ret = 0, stream; + + if (cstream->direction == SND_COMPRESS_PLAYBACK) + stream = SNDRV_PCM_STREAM_PLAYBACK; + else + stream = SNDRV_PCM_STREAM_CAPTURE; + + hw_params = kzalloc(sizeof(*hw_params), GFP_KERNEL); + if (hw_params == NULL) + return -ENOMEM; + + mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME); + + /* first we call set_params for the platform driver + * this should configure the soc side + * if the machine has compressed ops then we call that as well + * expectation is that platform and machine will configure everything + * for this compress path, like configuring pcm port for codec + */ + if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { + ret = platform->driver->compr_ops->set_params(cstream, params); + if (ret < 0) + goto out; + } + + if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->set_params) { + ret = fe->dai_link->compr_ops->set_params(cstream); + if (ret < 0) + goto out; + } + + + memcpy(&fe->dpcm[fe_substream->stream].hw_params, params, + sizeof(struct snd_pcm_hw_params)); + ret = dpcm_be_dai_hw_params(fe, stream); + if (ret < 0) + goto out; + + ret = dpcm_be_dai_prepare(fe, stream); + if (ret < 0) + goto out; + +out: + mutex_unlock(&fe->card->mutex); + return ret; +} + static int soc_compr_get_params(struct snd_compr_stream *cstream, struct snd_codec *params) { @@ -374,6 +566,19 @@ static struct snd_compr_ops soc_compr_ops = { .get_codec_caps = soc_compr_get_codec_caps }; +/* ASoC Dynamic Compress operations */ +static struct snd_compr_ops soc_compr_dyn_ops = { + .open = soc_compr_open_fe, + .free = soc_compr_free_fe, + .set_params = soc_compr_set_params_fe, + .get_params = soc_compr_get_params, + .trigger = soc_compr_trigger_fe, + .pointer = soc_compr_pointer, + .ack = soc_compr_ack, + .get_caps = soc_compr_get_caps, + .get_codec_caps = soc_compr_get_codec_caps +}; + /* create a new compress */ int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) { @@ -382,6 +587,7 @@ int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_compr *compr; + struct snd_pcm *be_pcm; char new_name[64]; int ret = 0, direction = 0; @@ -409,7 +615,26 @@ int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) ret = -ENOMEM; goto compr_err; } - memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops)); + + if (rtd->dai_link->dynamic) { + snprintf(new_name, sizeof(new_name), "(%s)", + rtd->dai_link->stream_name); + + ret = snd_pcm_new_internal(rtd->card->snd_card, new_name, num, + 1, 0, &be_pcm); + if (ret < 0) { + dev_err(rtd->card->dev, "ASoC: can't create compressed for %s\n", + rtd->dai_link->name); + goto compr_err; + } + + rtd->pcm = be_pcm; + rtd->fe_compr = 1; + be_pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->private_data = rtd; + //be_pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->private_data = rtd; + memcpy(compr->ops, &soc_compr_dyn_ops, sizeof(soc_compr_dyn_ops)); + } else + memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops)); /* Add copy callback for not memory mapped DSPs */ if (platform->driver->compr_ops && platform->driver->compr_ops->copy) |