From: Shreyas NC shreyas.nc@intel.com

ASoC core supports multiple codec DAIs but supports only a CPU DAI. To support multiple cpu DAIs, add cpu_dai and num_cpu_dai in snd_soc_dai_link and snd_soc_pcm_runtime structures similar to support for codec_dai. This is intended as a preparatory patch to eventually support the unification of the Codec and CPU DAI.

Inline with multiple codec DAI approach, add support to allocate, init, bind and probe multiple cpu_dai on init if driver specifies that. Also add support to loop over multiple cpu_dai during suspend and resume.

This is intended as a preparatory patch to eventually unify the CPU and Codec DAI into DAI components.

Signed-off-by: Shreyas NC shreyas.nc@intel.com Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- include/sound/soc.h | 15 ++++ sound/soc/soc-core.c | 168 +++++++++++++++++++++++-------------------- 2 files changed, 106 insertions(+), 77 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h index 8a2266676b2d..81e5d17be935 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -855,6 +855,11 @@ struct snd_soc_dai_link { ((platform) = &link->platforms[i]); \ (i)++)

+#define for_each_link_cpus(link, i, cpu) \ + for ((i) = 0; \ + ((i) < link->num_cpus) && ((cpu) = &link->cpus[i]); \ + (i)++) + /* * Sample 1 : Single CPU/Codec/Platform * @@ -1132,6 +1137,9 @@ struct snd_soc_pcm_runtime { struct snd_soc_dai **codec_dais; unsigned int num_codecs;

+ struct snd_soc_dai **cpu_dais; + unsigned int num_cpus; + struct delayed_work delayed_work; void (*close_delayed_work_func)(struct snd_soc_pcm_runtime *rtd); #ifdef CONFIG_DEBUG_FS @@ -1159,6 +1167,13 @@ struct snd_soc_pcm_runtime { #define for_each_rtd_codec_dai_rollback(rtd, i, dai) \ for (; (--(i) >= 0) && ((dai) = rtd->codec_dais[i]);)

+#define for_each_rtd_cpu_dai(rtd, i, dai)\ + for ((i) = 0; \ + ((i) < rtd->num_cpus) && ((dai) = rtd->cpu_dais[i]); \ + (i)++) +#define for_each_rtd_cpu_dai_rollback(rtd, i, dai) \ + for (; (--(i) >= 0) && ((dai) = rtd->cpu_dais[i]);) + void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd);

/* mixer control */ diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 518b652cf872..f2cfbf182f49 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -483,6 +483,14 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( if (!rtd->codec_dais) goto free_rtd;

+ /* + * for rtd->cpu_dais + */ + rtd->cpu_dais = devm_kcalloc(dev, dai_link->num_cpus, + sizeof(struct snd_soc_dai *), + GFP_KERNEL); + if (!rtd->cpu_dais) + goto free_rtd; /* * rtd remaining settings */ @@ -833,7 +841,7 @@ static int soc_dai_link_sanity_check(struct snd_soc_card *card, struct snd_soc_dai_link *link) { int i; - struct snd_soc_dai_link_component *codec, *platform; + struct snd_soc_dai_link_component *cpu, *codec, *platform;

for_each_link_codecs(link, i, codec) { /* @@ -882,44 +890,38 @@ static int soc_dai_link_sanity_check(struct snd_soc_card *card, return -EPROBE_DEFER; }

- /* FIXME */ - if (link->num_cpus > 1) { - dev_err(card->dev, - "ASoC: multi cpu is not yet supported %s\n", - link->name); - return -EINVAL; - } - - /* - * CPU device may be specified by either name or OF node, but - * can be left unspecified, and will be matched based on DAI - * name alone.. - */ - if (link->cpus->name && link->cpus->of_node) { - dev_err(card->dev, - "ASoC: Neither/both cpu name/of_node are set for %s\n", - link->name); - return -EINVAL; - } + for_each_link_cpus(link, i, cpu) { + /* + * CPU device may be specified by either name or OF node, but + * can be left unspecified, and will be matched based on DAI + * name alone.. + */ + if (cpu->name && cpu->of_node) { + dev_err(card->dev, + "ASoC: Neither/both cpu name/of_node are set for %s\n", + link->name); + return -EINVAL; + }

- /* - * Defer card registration if cpu dai component is not added to - * component list. - */ - if ((link->cpus->of_node || link->cpus->name) && - !soc_find_component(link->cpus)) - return -EPROBE_DEFER; + /* + * Defer card registration if cpu dai component is not added to + * component list. + */ + if ((cpu->of_node || cpu->name) && + !soc_find_component(cpu)) + return -EPROBE_DEFER;

- /* - * At least one of CPU DAI name or CPU device name/node must be - * specified - */ - if (!link->cpus->dai_name && - !(link->cpus->name || link->cpus->of_node)) { - dev_err(card->dev, - "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", - link->name); - return -EINVAL; + /* + * At least one of CPU DAI name or CPU device name/node must be + * specified + */ + if (!cpu->dai_name && + !(cpu->name || cpu->of_node)) { + dev_err(card->dev, + "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n", + link->name); + return -EINVAL; + } }

return 0; @@ -962,7 +964,7 @@ int snd_soc_add_pcm_runtime(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { struct snd_soc_pcm_runtime *rtd; - struct snd_soc_dai_link_component *codec, *platform; + struct snd_soc_dai_link_component *codec, *platform, *cpu; struct snd_soc_component *component; int i, ret;

@@ -987,14 +989,19 @@ int snd_soc_add_pcm_runtime(struct snd_soc_card *card, if (!rtd) return -ENOMEM;

- /* FIXME: we need multi CPU support in the future */ - rtd->cpu_dai = snd_soc_find_dai(dai_link->cpus); - if (!rtd->cpu_dai) { - dev_info(card->dev, "ASoC: CPU DAI %s not registered\n", - dai_link->cpus->dai_name); - goto _err_defer; + rtd->num_cpus = dai_link->num_cpus; + for_each_link_cpus(dai_link, i, cpu) { + rtd->cpu_dais[i] = snd_soc_find_dai(cpu); + if (!rtd->cpu_dais[i]) { + dev_info(card->dev, "ASoC: CPU DAI %s not registered\n", + cpu->dai_name); + goto _err_defer; + } + snd_soc_rtd_add_component(rtd, rtd->cpu_dais[i]->component); } - snd_soc_rtd_add_component(rtd, rtd->cpu_dai->component); + + /* Single cpu links expect cpu and cpu_dai in runtime data */ + rtd->cpu_dai = rtd->cpu_dais[0];

/* Find CODEC from registered CODECs */ rtd->num_codecs = dai_link->num_codecs; @@ -1114,7 +1121,8 @@ static int soc_init_pcm_runtime(struct snd_soc_card *card, dai_link->stream_name, ret); return ret; } - ret = soc_dai_pcm_new(&cpu_dai, 1, rtd); + ret = soc_dai_pcm_new(rtd->cpu_dais, + rtd->num_cpus, rtd); if (ret < 0) return ret; ret = soc_dai_pcm_new(rtd->codec_dais, @@ -1306,6 +1314,7 @@ static void soc_remove_link_dais(struct snd_soc_card *card) { int i; struct snd_soc_dai *codec_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_pcm_runtime *rtd; int order;

@@ -1315,14 +1324,15 @@ static void soc_remove_link_dais(struct snd_soc_card *card) for_each_rtd_codec_dai(rtd, i, codec_dai) soc_remove_dai(codec_dai, order);

- soc_remove_dai(rtd->cpu_dai, order); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + soc_remove_dai(cpu_dai, order); } } }

static int soc_probe_link_dais(struct snd_soc_card *card) { - struct snd_soc_dai *codec_dai; + struct snd_soc_dai *codec_dai, *cpu_dai; struct snd_soc_pcm_runtime *rtd; int i, order, ret;

@@ -1333,9 +1343,12 @@ static int soc_probe_link_dais(struct snd_soc_card *card) "ASoC: probe %s dai link %d late %d\n", card->name, rtd->num, order);

- ret = soc_probe_dai(rtd->cpu_dai, order); - if (ret) - return ret; + /* probe the CPU DAI */ + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = soc_probe_dai(cpu_dai, order); + if (ret) + return ret; + }

/* probe the CODEC DAI */ for_each_rtd_codec_dai(rtd, i, codec_dai) { @@ -1467,8 +1480,9 @@ static void soc_remove_aux_devices(struct snd_soc_card *card) int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, unsigned int dai_fmt) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; + unsigned int inv_dai_fmt; unsigned int i; int ret;

@@ -1485,33 +1499,33 @@ int snd_soc_runtime_set_dai_fmt(struct snd_soc_pcm_runtime *rtd, * Flip the polarity for the "CPU" end of a CODEC<->CODEC link * the component which has non_legacy_dai_naming is Codec */ - if (cpu_dai->component->driver->non_legacy_dai_naming) { - unsigned int inv_dai_fmt; - - inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; - switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { - case SND_SOC_DAIFMT_CBM_CFM: - inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; - break; - case SND_SOC_DAIFMT_CBM_CFS: - inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; - break; - case SND_SOC_DAIFMT_CBS_CFM: - inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; - break; - case SND_SOC_DAIFMT_CBS_CFS: - inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; - break; - } - - dai_fmt = inv_dai_fmt; + inv_dai_fmt = dai_fmt & ~SND_SOC_DAIFMT_MASTER_MASK; + switch (dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) { + case SND_SOC_DAIFMT_CBM_CFM: + inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFS; + break; + case SND_SOC_DAIFMT_CBM_CFS: + inv_dai_fmt |= SND_SOC_DAIFMT_CBS_CFM; + break; + case SND_SOC_DAIFMT_CBS_CFM: + inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFS; + break; + case SND_SOC_DAIFMT_CBS_CFS: + inv_dai_fmt |= SND_SOC_DAIFMT_CBM_CFM; + break; } + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + unsigned int fmt = dai_fmt;

- ret = snd_soc_dai_set_fmt(cpu_dai, dai_fmt); - if (ret != 0 && ret != -ENOTSUPP) { - dev_warn(cpu_dai->dev, - "ASoC: Failed to set DAI format: %d\n", ret); - return ret; + if (cpu_dai->component->driver->non_legacy_dai_naming) + fmt = inv_dai_fmt; + + ret = snd_soc_dai_set_fmt(cpu_dai, fmt); + if (ret != 0 && ret != -ENOTSUPP) { + dev_warn(cpu_dai->dev, + "ASoC: Failed to set DAI format: %d\n", ret); + return ret; + } }

return 0;

From: Shreyas NC shreyas.nc@intel.com

Add support in PCM operations to invoke multiple cpu dais as we do for multiple codec dais. Also the symmetry calculations are updated to reflect multiple cpu dais.

Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Shreyas NC shreyas.nc@intel.com Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/soc-pcm.c | 396 +++++++++++++++++++++++++++++--------------- 1 file changed, 261 insertions(+), 135 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 4c27c77206f1..44694e65fc4a 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -253,18 +253,22 @@ static int soc_rtd_trigger(struct snd_soc_pcm_runtime *rtd, static void snd_soc_runtime_action(struct snd_soc_pcm_runtime *rtd, int stream, int action) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i;

lockdep_assert_held(&rtd->card->pcm_mutex);

- cpu_dai->stream_active[stream] += action; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + cpu_dai->stream_active[stream] += action; + for_each_rtd_codec_dai(rtd, i, codec_dai) codec_dai->stream_active[stream] += action;

- cpu_dai->active += action; - cpu_dai->component->active += action; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + cpu_dai->active += action; + cpu_dai->component->active += action; + } for_each_rtd_codec_dai(rtd, i, codec_dai) { codec_dai->active += action; codec_dai->component->active += action; @@ -434,7 +438,7 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; unsigned int rate, channels, sample_bits, symmetry, i;

@@ -443,40 +447,60 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, sample_bits = snd_pcm_format_physical_width(params_format(params));

/* reject unmatched parameters when applying symmetry */ - symmetry = cpu_dai->driver->symmetric_rates || - rtd->dai_link->symmetric_rates; + symmetry = rtd->dai_link->symmetric_rates; + + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + symmetry |= cpu_dai->driver->symmetric_rates;

for_each_rtd_codec_dai(rtd, i, codec_dai) symmetry |= codec_dai->driver->symmetric_rates;

- if (symmetry && cpu_dai->rate && cpu_dai->rate != rate) { - dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", - cpu_dai->rate, rate); - return -EINVAL; + if (symmetry) { + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->rate && cpu_dai->rate != rate) { + dev_err(rtd->dev, "ASoC: unmatched rate symmetry: %d - %d\n", + cpu_dai->rate, rate); + return -EINVAL; + } + } }

- symmetry = cpu_dai->driver->symmetric_channels || - rtd->dai_link->symmetric_channels; + symmetry = rtd->dai_link->symmetric_channels; + + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + symmetry |= cpu_dai->driver->symmetric_channels;

for_each_rtd_codec_dai(rtd, i, codec_dai) symmetry |= codec_dai->driver->symmetric_channels;

- if (symmetry && cpu_dai->channels && cpu_dai->channels != channels) { - dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", - cpu_dai->channels, channels); - return -EINVAL; + if (symmetry) { + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->channels && + cpu_dai->channels != channels) { + dev_err(rtd->dev, "ASoC: unmatched channel symmetry: %d - %d\n", + cpu_dai->channels, channels); + return -EINVAL; + } + } }

- symmetry = cpu_dai->driver->symmetric_samplebits || - rtd->dai_link->symmetric_samplebits; + symmetry = rtd->dai_link->symmetric_samplebits; + + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + symmetry |= cpu_dai->driver->symmetric_samplebits;

for_each_rtd_codec_dai(rtd, i, codec_dai) symmetry |= codec_dai->driver->symmetric_samplebits;

- if (symmetry && cpu_dai->sample_bits && cpu_dai->sample_bits != sample_bits) { - dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", - cpu_dai->sample_bits, sample_bits); - return -EINVAL; + if (symmetry) { + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->sample_bits && + cpu_dai->sample_bits != sample_bits) { + dev_err(rtd->dev, "ASoC: unmatched sample bits symmetry: %d - %d\n", + cpu_dai->sample_bits, sample_bits); + return -EINVAL; + } + } }

return 0; @@ -485,14 +509,20 @@ static int soc_pcm_params_symmetry(struct snd_pcm_substream *substream, static bool soc_pcm_has_symmetry(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai_driver *cpu_driver = rtd->cpu_dai->driver; struct snd_soc_dai_link *link = rtd->dai_link; struct snd_soc_dai *codec_dai; + struct snd_soc_dai *cpu_dai; unsigned int symmetry, i;

- symmetry = cpu_driver->symmetric_rates || link->symmetric_rates || - cpu_driver->symmetric_channels || link->symmetric_channels || - cpu_driver->symmetric_samplebits || link->symmetric_samplebits; + symmetry = link->symmetric_rates || + link->symmetric_channels || + link->symmetric_samplebits; + + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + symmetry = symmetry || + cpu_dai->driver->symmetric_rates || + cpu_dai->driver->symmetric_channels || + cpu_dai->driver->symmetric_samplebits;

for_each_rtd_codec_dai(rtd, i, codec_dai) symmetry = symmetry || @@ -520,12 +550,12 @@ static void soc_pcm_set_msb(struct snd_pcm_substream *substream, int bits) static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; struct snd_soc_pcm_stream *pcm_codec, *pcm_cpu; int stream = substream->stream; int i; - unsigned int bits = 0, cpu_bits; + unsigned int bits = 0, cpu_bits = 0;

for_each_rtd_codec_dai(rtd, i, codec_dai) { pcm_codec = snd_soc_dai_get_pcm_stream(codec_dai, stream); @@ -537,8 +567,15 @@ static void soc_pcm_apply_msb(struct snd_pcm_substream *substream) bits = max(pcm_codec->sig_bits, bits); }

- pcm_cpu = snd_soc_dai_get_pcm_stream(cpu_dai, stream); - cpu_bits = pcm_cpu->sig_bits; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + pcm_cpu = snd_soc_dai_get_pcm_stream(cpu_dai, stream); + + if (pcm_cpu->sig_bits == 0) { + cpu_bits = 0; + break; + } + cpu_bits = max(pcm_cpu->sig_bits, cpu_bits); + }

soc_pcm_set_msb(substream, bits); soc_pcm_set_msb(substream, cpu_bits); @@ -550,18 +587,32 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream) struct snd_pcm_hardware *hw = &runtime->hw; struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_dai *codec_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_pcm_stream *codec_stream; struct snd_soc_pcm_stream *cpu_stream; unsigned int chan_min = 0, chan_max = UINT_MAX; + unsigned int cpu_chan_min = 0, cpu_chan_max = UINT_MAX; unsigned int rate_min = 0, rate_max = UINT_MAX; - unsigned int rates = UINT_MAX; + unsigned int cpu_rate_min = 0, cpu_rate_max = UINT_MAX; + unsigned int rates = UINT_MAX, cpu_rates = UINT_MAX; u64 formats = ULLONG_MAX; int stream = substream->stream; int i;

- cpu_stream = snd_soc_dai_get_pcm_stream(rtd->cpu_dai, stream); + /* first calculate min/max only for CPUs in the DAI link */ + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + cpu_stream = snd_soc_dai_get_pcm_stream(cpu_dai, stream); + + cpu_chan_min = max(cpu_chan_min, cpu_stream->channels_min); + cpu_chan_max = min(cpu_chan_max, cpu_stream->channels_max); + cpu_rate_min = max(cpu_rate_min, cpu_stream->rate_min); + cpu_rate_max = min_not_zero(cpu_rate_max, cpu_stream->rate_max); + formats &= cpu_stream->formats; + cpu_rates = snd_pcm_rate_mask_intersect(cpu_stream->rates, + cpu_rates); + }

- /* first calculate min/max only for CODECs in the DAI link */ + /* second calculate min/max only for CODECs in the DAI link */ for_each_rtd_codec_dai(rtd, i, codec_dai) {

/* @@ -589,27 +640,28 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream)

/* * chan min/max cannot be enforced if there are multiple CODEC DAIs - * connected to a single CPU DAI, use CPU DAI's directly and let + * connected to CPU DAI(s), use CPU DAI's directly and let * channel allocation be fixed up later */ if (rtd->num_codecs > 1) { - chan_min = cpu_stream->channels_min; - chan_max = cpu_stream->channels_max; + chan_min = cpu_chan_min; + chan_max = cpu_chan_max; }

- hw->channels_min = max(chan_min, cpu_stream->channels_min); - hw->channels_max = min(chan_max, cpu_stream->channels_max); + /* finally find a intersection between CODECs and CPUs */ + hw->channels_min = max(chan_min, cpu_chan_min); + hw->channels_max = min(chan_max, cpu_chan_max); if (hw->formats) - hw->formats &= formats & cpu_stream->formats; + hw->formats &= formats; else - hw->formats = formats & cpu_stream->formats; - hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_stream->rates); + hw->formats = formats; + hw->rates = snd_pcm_rate_mask_intersect(rates, cpu_rates);

snd_pcm_limit_hw_rates(runtime);

- hw->rate_min = max(hw->rate_min, cpu_stream->rate_min); + hw->rate_min = max(hw->rate_min, cpu_rate_min); hw->rate_min = max(hw->rate_min, rate_min); - hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max); + hw->rate_max = min_not_zero(hw->rate_max, cpu_rate_max); hw->rate_max = min_not_zero(hw->rate_max, rate_max); }

@@ -681,7 +733,7 @@ static int soc_pcm_close(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_component *component; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i;

@@ -689,9 +741,11 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)

snd_soc_runtime_deactivate(rtd, substream->stream);

- snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + snd_soc_dai_digital_mute(cpu_dai, 1, substream->stream);

- snd_soc_dai_shutdown(cpu_dai, substream); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + snd_soc_dai_shutdown(cpu_dai, substream);

for_each_rtd_codec_dai(rtd, i, codec_dai) snd_soc_dai_shutdown(codec_dai, substream); @@ -726,9 +780,10 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_component *component; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; const char *codec_dai_name = "multicodec"; + const char *cpu_dai_name = "multicpu"; int i, ret = 0;

for_each_rtd_components(rtd, i, component) @@ -751,11 +806,13 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) }

/* startup the audio subsystem */ - ret = snd_soc_dai_startup(cpu_dai, substream); - if (ret < 0) { - dev_err(cpu_dai->dev, "ASoC: can't open interface %s: %d\n", - cpu_dai->name, ret); - goto cpu_dai_err; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = snd_soc_dai_startup(cpu_dai, substream); + if (ret < 0) { + dev_err(cpu_dai->dev, "ASoC: can't open interface %s: %d\n", + cpu_dai->name, ret); + goto cpu_dai_err; + } }

for_each_rtd_codec_dai(rtd, i, codec_dai) { @@ -783,34 +840,39 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) if (rtd->num_codecs == 1) codec_dai_name = rtd->codec_dai->name;

+ if (rtd->num_cpus == 1) + cpu_dai_name = rtd->cpu_dai->name; + if (soc_pcm_has_symmetry(substream)) runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;

ret = -EINVAL; if (!runtime->hw.rates) { printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n", - codec_dai_name, cpu_dai->name); + codec_dai_name, cpu_dai_name); goto config_err; } if (!runtime->hw.formats) { printk(KERN_ERR "ASoC: %s <-> %s No matching formats\n", - codec_dai_name, cpu_dai->name); + codec_dai_name, cpu_dai_name); goto config_err; } if (!runtime->hw.channels_min || !runtime->hw.channels_max || runtime->hw.channels_min > runtime->hw.channels_max) { printk(KERN_ERR "ASoC: %s <-> %s No matching channels\n", - codec_dai_name, cpu_dai->name); + codec_dai_name, cpu_dai_name); goto config_err; }

soc_pcm_apply_msb(substream);

/* Symmetry only applies if we've already got an active stream. */ - if (cpu_dai->active) { - ret = soc_pcm_apply_symmetry(substream, cpu_dai); - if (ret != 0) - goto config_err; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->active) { + ret = soc_pcm_apply_symmetry(substream, cpu_dai); + if (ret != 0) + goto config_err; + } }

for_each_rtd_codec_dai(rtd, i, codec_dai) { @@ -822,7 +884,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) }

pr_debug("ASoC: %s <-> %s info:\n", - codec_dai_name, cpu_dai->name); + codec_dai_name, cpu_dai_name); pr_debug("ASoC: rate mask 0x%x\n", runtime->hw.rates); pr_debug("ASoC: min ch %d max ch %d\n", runtime->hw.channels_min, runtime->hw.channels_max); @@ -840,7 +902,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) for_each_rtd_codec_dai(rtd, i, codec_dai) snd_soc_dai_shutdown(codec_dai, substream); cpu_dai_err: - snd_soc_dai_shutdown(cpu_dai, substream); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + snd_soc_dai_shutdown(cpu_dai, substream);

soc_rtd_shutdown(rtd, substream); rtd_startup_err: @@ -879,7 +942,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_component *component; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i, ret = 0;

@@ -911,11 +974,13 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream) } }

- ret = snd_soc_dai_prepare(cpu_dai, substream); - if (ret < 0) { - dev_err(cpu_dai->dev, - "ASoC: cpu DAI prepare error: %d\n", ret); - goto out; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = snd_soc_dai_prepare(cpu_dai, substream); + if (ret < 0) { + dev_err(cpu_dai->dev, + "ASoC: cpu DAI prepare error: %d\n", ret); + goto out; + } }

/* cancel any delayed stream shutdown that is pending */ @@ -931,7 +996,8 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream) for_each_rtd_codec_dai(rtd, i, codec_dai) snd_soc_dai_digital_mute(codec_dai, 0, substream->stream); - snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + snd_soc_dai_digital_mute(cpu_dai, 0, substream->stream);

out: mutex_unlock(&rtd->card->pcm_mutex); @@ -978,7 +1044,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_component *component; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i, ret = 0;

@@ -1042,17 +1108,19 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, snd_soc_dapm_update_dai(substream, &codec_params, codec_dai); }

- ret = snd_soc_dai_hw_params(cpu_dai, substream, params); - if (ret < 0) - goto interface_err; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = snd_soc_dai_hw_params(cpu_dai, substream, params); + if (ret < 0) + goto interface_err;

- /* store the parameters for each DAIs */ - cpu_dai->rate = params_rate(params); - cpu_dai->channels = params_channels(params); - cpu_dai->sample_bits = - snd_pcm_format_physical_width(params_format(params)); + /* store the parameters for each DAI */ + cpu_dai->rate = params_rate(params); + cpu_dai->channels = params_channels(params); + cpu_dai->sample_bits = + snd_pcm_format_physical_width(params_format(params));

- snd_soc_dapm_update_dai(substream, params, cpu_dai); + snd_soc_dapm_update_dai(substream, params, cpu_dai); + }

for_each_rtd_components(rtd, i, component) { ret = snd_soc_component_hw_params(component, substream, params); @@ -1072,10 +1140,14 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, component_err: soc_pcm_components_hw_free(substream, component);

- snd_soc_dai_hw_free(cpu_dai, substream); - cpu_dai->rate = 0; + i = rtd->num_cpus;

interface_err: + for_each_rtd_cpu_dai_rollback(rtd, i, cpu_dai) { + snd_soc_dai_hw_free(cpu_dai, substream); + cpu_dai->rate = 0; + } + i = rtd->num_codecs;

codec_err: @@ -1099,7 +1171,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, static int soc_pcm_hw_free(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; bool playback = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; int i; @@ -1107,10 +1179,12 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream) mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);

/* clear the corresponding DAIs parameters when going to be inactive */ - if (cpu_dai->active == 1) { - cpu_dai->rate = 0; - cpu_dai->channels = 0; - cpu_dai->sample_bits = 0; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->active == 1) { + cpu_dai->rate = 0; + cpu_dai->channels = 0; + cpu_dai->sample_bits = 0; + } }

for_each_rtd_codec_dai(rtd, i, codec_dai) { @@ -1146,7 +1220,8 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream) snd_soc_dai_hw_free(codec_dai, substream); }

- snd_soc_dai_hw_free(cpu_dai, substream); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) + snd_soc_dai_hw_free(cpu_dai, substream);

mutex_unlock(&rtd->card->pcm_mutex); return 0; @@ -1156,7 +1231,7 @@ static int soc_pcm_trigger_start(struct snd_pcm_substream *substream, int cmd) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_component *component; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i, ret;

@@ -1170,9 +1245,11 @@ static int soc_pcm_trigger_start(struct snd_pcm_substream *substream, int cmd) return ret; }

- ret = snd_soc_dai_trigger(cpu_dai, substream, cmd); - if (ret < 0) - return ret; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = snd_soc_dai_trigger(cpu_dai, substream, cmd); + if (ret < 0) + return ret; + }

for_each_rtd_codec_dai(rtd, i, codec_dai) { ret = snd_soc_dai_trigger(codec_dai, substream, cmd); @@ -1187,7 +1264,7 @@ static int soc_pcm_trigger_stop(struct snd_pcm_substream *substream, int cmd) { struct snd_soc_pcm_runtime *rtd = substream->private_data; struct snd_soc_component *component; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i, ret;

@@ -1197,9 +1274,11 @@ static int soc_pcm_trigger_stop(struct snd_pcm_substream *substream, int cmd) return ret; }

- ret = snd_soc_dai_trigger(cpu_dai, substream, cmd); - if (ret < 0) - return ret; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = snd_soc_dai_trigger(cpu_dai, substream, cmd); + if (ret < 0) + return ret; + }

for_each_rtd_components(rtd, i, component) { ret = snd_soc_component_trigger(component, substream, cmd); @@ -1240,7 +1319,7 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, int cmd) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; int i, ret;

@@ -1250,9 +1329,11 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, return ret; }

- ret = snd_soc_dai_bespoke_trigger(cpu_dai, substream, cmd); - if (ret < 0) - return ret; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + ret = snd_soc_dai_bespoke_trigger(cpu_dai, substream, cmd); + if (ret < 0) + return ret; + }

return 0; } @@ -1264,12 +1345,13 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) { struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_dai *codec_dai; struct snd_pcm_runtime *runtime = substream->runtime; snd_pcm_uframes_t offset = 0; snd_pcm_sframes_t delay = 0; snd_pcm_sframes_t codec_delay = 0; + snd_pcm_sframes_t cpu_delay = 0; int i;

/* clearing the previous total delay */ @@ -1280,7 +1362,11 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream) /* base delay if assigned in pointer callback */ delay = runtime->delay;

- delay += snd_soc_dai_delay(cpu_dai, substream); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + cpu_delay = max(cpu_delay, + snd_soc_dai_delay(cpu_dai, substream)); + } + delay += cpu_delay;

for_each_rtd_codec_dai(rtd, i, codec_dai) { codec_delay = max(codec_delay, @@ -1403,13 +1489,15 @@ static struct snd_soc_pcm_runtime *dpcm_get_be(struct snd_soc_card *card, if (!be->dai_link->no_pcm) continue;

- w = snd_soc_dai_get_widget(be->cpu_dai, stream); + for_each_rtd_cpu_dai(be, i, dai) { + w = snd_soc_dai_get_widget(dai, stream);

- dev_dbg(card->dev, "ASoC: try BE : %s\n", - w ? w->name : "(not set)"); + dev_dbg(card->dev, "ASoC: try BE : %s\n", + w ? w->name : "(not set)");

- if (w == widget) - return be; + if (w == widget) + return be; + }

for_each_rtd_codec_dai(be, i, dai) { w = snd_soc_dai_get_widget(dai, stream); @@ -1492,10 +1580,18 @@ static int dpcm_prune_paths(struct snd_soc_pcm_runtime *fe, int stream, unsigned int i;

/* is there a valid CPU DAI widget for this BE */ - widget = snd_soc_dai_get_widget(dpcm->be->cpu_dai, stream); + do_prune = 1; + for_each_rtd_cpu_dai(dpcm->be, i, dai) { + widget = snd_soc_dai_get_widget(dai, stream);

- /* prune the BE if it's no longer in our active list */ - if (widget && widget_in_list(list, widget)) + /* + * The BE is pruned only if none of the cpu_dai + * widgets are in the active list. + */ + if (widget && widget_in_list(list, widget)) + do_prune = 0; + } + if (!do_prune) continue;

/* is there a valid CODEC DAI widget for this BE */ @@ -1792,11 +1888,17 @@ static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream, struct snd_soc_pcm_runtime *be = dpcm->be; struct snd_soc_pcm_stream *codec_stream; struct snd_soc_pcm_stream *cpu_stream; + struct snd_soc_dai *dai; + int i;

- cpu_stream = snd_soc_dai_get_pcm_stream(be->cpu_dai, stream); + for_each_rtd_cpu_dai(be, i, dai) { + cpu_stream = snd_soc_dai_get_pcm_stream(dai, stream);

- *channels_min = max(*channels_min, cpu_stream->channels_min); - *channels_max = min(*channels_max, cpu_stream->channels_max); + *channels_min = max(*channels_min, + cpu_stream->channels_min); + *channels_max = min(*channels_max, + cpu_stream->channels_max); + }

/* * chan min/max cannot be enforced if there are multiple CODEC @@ -1837,11 +1939,15 @@ static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream, struct snd_soc_dai *dai; int i;

- cpu_stream = snd_soc_dai_get_pcm_stream(be->cpu_dai, stream); + for_each_rtd_cpu_dai(be, i, dai) { + cpu_stream = snd_soc_dai_get_pcm_stream(dai, stream);

- *rate_min = max(*rate_min, cpu_stream->rate_min); - *rate_max = min_not_zero(*rate_max, cpu_stream->rate_max); - *rates = snd_pcm_rate_mask_intersect(*rates, cpu_stream->rates); + *rate_min = max(*rate_min, cpu_stream->rate_min); + *rate_max = min_not_zero(*rate_max, + cpu_stream->rate_max); + *rates = snd_pcm_rate_mask_intersect(*rates, + cpu_stream->rates); + }

for_each_rtd_codec_dai(be, i, dai) { /* @@ -1866,13 +1972,17 @@ static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) { struct snd_pcm_runtime *runtime = substream->runtime; struct snd_soc_pcm_runtime *rtd = substream->private_data; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dai_driver *cpu_dai_drv = cpu_dai->driver; + struct snd_soc_dai *cpu_dai; + struct snd_soc_dai_driver *cpu_dai_drv; + int i;

- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) - dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback); - else - dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture); + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + cpu_dai_drv = cpu_dai->driver; + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback); + else + dpcm_init_runtime_hw(runtime, &cpu_dai_drv->capture); + }

dpcm_runtime_merge_format(substream, &runtime->hw.formats); dpcm_runtime_merge_chan(substream, &runtime->hw.channels_min, @@ -1909,18 +2019,21 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, { struct snd_soc_dpcm *dpcm; struct snd_soc_pcm_runtime *fe = fe_substream->private_data; - struct snd_soc_dai *fe_cpu_dai = fe->cpu_dai; + struct snd_soc_dai *fe_cpu_dai; int err; + int i;

/* apply symmetry for FE */ if (soc_pcm_has_symmetry(fe_substream)) fe_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;

- /* Symmetry only applies if we've got an active stream. */ - if (fe_cpu_dai->active) { - err = soc_pcm_apply_symmetry(fe_substream, fe_cpu_dai); - if (err < 0) - return err; + for_each_rtd_cpu_dai (fe, i, fe_cpu_dai) { + /* Symmetry only applies if we've got an active stream. */ + if (fe_cpu_dai->active) { + err = soc_pcm_apply_symmetry(fe_substream, fe_cpu_dai); + if (err < 0) + return err; + } }

/* apply symmetry for BE */ @@ -1930,6 +2043,7 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, snd_soc_dpcm_get_substream(be, stream); struct snd_soc_pcm_runtime *rtd; struct snd_soc_dai *codec_dai; + struct snd_soc_dai *cpu_dai; int i;

/* A backend may not have the requested substream */ @@ -1944,11 +2058,13 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream, be_substream->runtime->hw.info |= SNDRV_PCM_INFO_JOINT_DUPLEX;

/* Symmetry only applies if we've got an active stream. */ - if (rtd->cpu_dai->active) { - err = soc_pcm_apply_symmetry(fe_substream, - rtd->cpu_dai); - if (err < 0) - return err; + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (cpu_dai->active) { + err = soc_pcm_apply_symmetry(fe_substream, + cpu_dai); + if (err < 0) + return err; + } }

for_each_rtd_codec_dai(rtd, i, codec_dai) { @@ -2863,7 +2979,7 @@ static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream) int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) { struct snd_soc_dai *codec_dai; - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; + struct snd_soc_dai *cpu_dai; struct snd_soc_component *component; struct snd_pcm *pcm; char new_name[64]; @@ -2881,6 +2997,16 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;

for_each_rtd_codec_dai(rtd, i, codec_dai) { + if (rtd->num_cpus == 1) { + cpu_dai = rtd->cpu_dais[0]; + } else if (rtd->num_cpus == rtd->num_codecs) { + cpu_dai = rtd->cpu_dais[i]; + } else { + dev_err(rtd->card->dev, + "N cpus to M codecs link is not supported yet\n"); + return -EINVAL; + } + if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) && snd_soc_dai_stream_valid(cpu_dai, cpu_playback)) playback = 1; @@ -3001,7 +3127,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num) out: dev_info(rtd->card->dev, "%s <-> %s mapping ok\n", (rtd->num_codecs > 1) ? "multicodec" : rtd->codec_dai->name, - cpu_dai->name); + (rtd->num_cpus > 1) ? "multicpu" : rtd->cpu_dai->name); return ret; }

From: Shreyas NC shreyas.nc@intel.com

Adding a helper to connect widget for a specific cpu and codec dai The helper will help dapm_connect_dai_link_widgets() to reduce indents.

Signed-off-by: Vinod Koul vkoul@kernel.org Signed-off-by: Shreyas NC shreyas.nc@intel.com Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/soc-dapm.c | 119 +++++++++++++++++++++++-------------------- 1 file changed, 63 insertions(+), 56 deletions(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 58c318c9debb..539a1eaebeac 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -4277,16 +4277,15 @@ int snd_soc_dapm_link_dai_widgets(struct snd_soc_card *card) return 0; }

-static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, - struct snd_soc_pcm_runtime *rtd) +static void dapm_add_valid_dai_widget(struct snd_soc_card *card, + struct snd_soc_pcm_runtime *rtd, + struct snd_soc_dai *codec_dai, + struct snd_soc_dai *cpu_dai) { - struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dai *codec_dai; struct snd_soc_dapm_widget *playback = NULL, *capture = NULL; struct snd_soc_dapm_widget *codec, *playback_cpu, *capture_cpu; struct snd_pcm_substream *substream; struct snd_pcm_str *streams = rtd->pcm->streams; - int i;

if (rtd->dai_link->params) { playback_cpu = cpu_dai->capture_widget; @@ -4298,67 +4297,75 @@ static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, capture_cpu = capture; }

- for_each_rtd_codec_dai(rtd, i, codec_dai) { - /* connect BE DAI playback if widgets are valid */ - codec = codec_dai->playback_widget; - - if (playback_cpu && codec) { - if (!playback) { - substream = streams[SNDRV_PCM_STREAM_PLAYBACK].substream; - playback = snd_soc_dapm_new_dai(card, substream, - "playback"); - if (IS_ERR(playback)) { - dev_err(rtd->dev, - "ASoC: Failed to create DAI %s: %ld\n", - codec_dai->name, - PTR_ERR(playback)); - continue; - } - - snd_soc_dapm_add_path(&card->dapm, playback_cpu, - playback, NULL, NULL); + /* connect BE DAI playback if widgets are valid */ + codec = codec_dai->playback_widget; + + if (playback_cpu && codec) { + if (!playback) { + substream = streams[SNDRV_PCM_STREAM_PLAYBACK].substream; + playback = snd_soc_dapm_new_dai(card, substream, + "playback"); + if (IS_ERR(playback)) { + dev_err(rtd->dev, + "ASoC: Failed to create DAI %s: %ld\n", + codec_dai->name, + PTR_ERR(playback)); + goto capture; }

- dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", - cpu_dai->component->name, playback_cpu->name, - codec_dai->component->name, codec->name); - - snd_soc_dapm_add_path(&card->dapm, playback, codec, - NULL, NULL); + snd_soc_dapm_add_path(&card->dapm, playback_cpu, + playback, NULL, NULL); } - }

- for_each_rtd_codec_dai(rtd, i, codec_dai) { - /* connect BE DAI capture if widgets are valid */ - codec = codec_dai->capture_widget; - - if (codec && capture_cpu) { - if (!capture) { - substream = streams[SNDRV_PCM_STREAM_CAPTURE].substream; - capture = snd_soc_dapm_new_dai(card, substream, - "capture"); - if (IS_ERR(capture)) { - dev_err(rtd->dev, - "ASoC: Failed to create DAI %s: %ld\n", - codec_dai->name, - PTR_ERR(capture)); - continue; - } - - snd_soc_dapm_add_path(&card->dapm, capture, - capture_cpu, NULL, NULL); + dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", + cpu_dai->component->name, playback_cpu->name, + codec_dai->component->name, codec->name); + + snd_soc_dapm_add_path(&card->dapm, playback, codec, + NULL, NULL); + } + +capture: + /* connect BE DAI capture if widgets are valid */ + codec = codec_dai->capture_widget; + + if (codec && capture_cpu) { + if (!capture) { + substream = streams[SNDRV_PCM_STREAM_CAPTURE].substream; + capture = snd_soc_dapm_new_dai(card, substream, + "capture"); + if (IS_ERR(capture)) { + dev_err(rtd->dev, + "ASoC: Failed to create DAI %s: %ld\n", + codec_dai->name, + PTR_ERR(capture)); + return; }

- dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", - codec_dai->component->name, codec->name, - cpu_dai->component->name, capture_cpu->name); - - snd_soc_dapm_add_path(&card->dapm, codec, capture, - NULL, NULL); + snd_soc_dapm_add_path(&card->dapm, capture, + capture_cpu, NULL, NULL); } + + dev_dbg(rtd->dev, "connected DAI link %s:%s -> %s:%s\n", + codec_dai->component->name, codec->name, + cpu_dai->component->name, capture_cpu->name); + + snd_soc_dapm_add_path(&card->dapm, codec, capture, + NULL, NULL); } }

+static void dapm_connect_dai_link_widgets(struct snd_soc_card *card, + struct snd_soc_pcm_runtime *rtd) +{ + struct snd_soc_dai *codec_dai; + int i; + + for_each_rtd_codec_dai(rtd, i, codec_dai) + dapm_add_valid_dai_widget(card, rtd, + codec_dai, rtd->cpu_dais[0]); +} + static void soc_dapm_dai_stream_event(struct snd_soc_dai *dai, int stream, int event) {

Multi cpu is not supported by all functions yet. Add an error message and return.

Suggested-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/soc-compress.c | 5 +++-- sound/soc/soc-generic-dmaengine-pcm.c | 18 ++++++++++++++++++ sound/soc/soc-pcm.c | 18 ++++++++++++++++++ 3 files changed, 39 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index 392a1c5b15d3..50062eb79adb 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -810,9 +810,10 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) int playback = 0, capture = 0; int i;

- if (rtd->num_codecs > 1) { + if (rtd->num_cpus > 1 || + rtd->num_codecs > 1) { dev_err(rtd->card->dev, - "Compress ASoC: Multicodec not supported\n"); + "Compress ASoC: Multi CPU/Codec not supported\n"); return -EINVAL; }

diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c index d6b4831e8aec..facf1922a714 100644 --- a/sound/soc/soc-generic-dmaengine-pcm.c +++ b/sound/soc/soc-generic-dmaengine-pcm.c @@ -62,6 +62,12 @@ int snd_dmaengine_pcm_prepare_slave_config(struct snd_pcm_substream *substream, struct snd_dmaengine_dai_dma_data *dma_data; int ret;

+ if (rtd->num_cpus > 1) { + dev_err(rtd->dev, + "%s doesn't support Multi CPU yet\n", __func__); + return -EINVAL; + } + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);

ret = snd_hwparams_to_dma_slave_config(substream, params, slave_config); @@ -118,6 +124,12 @@ dmaengine_pcm_set_runtime_hwparams(struct snd_soc_component *component, struct snd_dmaengine_dai_dma_data *dma_data; struct snd_pcm_hardware hw;

+ if (rtd->num_cpus > 1) { + dev_err(rtd->dev, + "%s doesn't support Multi CPU yet\n", __func__); + return -EINVAL; + } + if (pcm->config && pcm->config->pcm_hardware) return snd_soc_set_runtime_hwparams(substream, pcm->config->pcm_hardware); @@ -185,6 +197,12 @@ static struct dma_chan *dmaengine_pcm_compat_request_channel( struct snd_dmaengine_dai_dma_data *dma_data; dma_filter_fn fn = NULL;

+ if (rtd->num_cpus > 1) { + dev_err(rtd->dev, + "%s doesn't support Multi CPU yet\n", __func__); + return NULL; + } + dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);

if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) && pcm->chan[0]) diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 44694e65fc4a..adbceaff07b8 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -125,6 +125,12 @@ static ssize_t dpcm_state_read_file(struct file *file, char __user *user_buf, int stream; char *buf;

+ if (fe->num_cpus > 1) { + dev_err(fe->dev, + "%s doesn't support Multi CPU yet\n", __func__); + return -EINVAL; + } + buf = kmalloc(out_count, GFP_KERNEL); if (!buf) return -ENOMEM; @@ -1550,6 +1556,12 @@ int dpcm_path_get(struct snd_soc_pcm_runtime *fe, struct snd_soc_dai *cpu_dai = fe->cpu_dai; int paths;

+ if (fe->num_cpus > 1) { + dev_err(fe->dev, + "%s doesn't support Multi CPU yet\n", __func__); + return -EINVAL; + } + /* get number of valid DAI paths and their widgets */ paths = snd_soc_dapm_dai_get_connected_widgets(cpu_dai, stream, list, dpcm_end_walk_at_be); @@ -2834,6 +2846,12 @@ static int soc_dpcm_fe_runtime_update(struct snd_soc_pcm_runtime *fe, int new) int count, paths; int ret;

+ if (fe->num_cpus > 1) { + dev_err(fe->dev, + "%s doesn't support Multi CPU yet\n", __func__); + return -EINVAL; + } + if (!fe->dai_link->dynamic) return 0;

Now multi-cpu-dais are supported, we can skip cpi-dais which don't support the current stream, following the example of multi-codec-dais.

Signed-off-by: Bard Liao yung-chuan.liao@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/soc-pcm.c | 51 ++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 50 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index adbceaff07b8..90857138c823 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -607,6 +607,20 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_substream *substream)

/* first calculate min/max only for CPUs in the DAI link */ for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + + /* + * Skip CPUs which don't support the current stream type. + * Otherwise, since the rate, channel, and format values will + * zero in that case, we would have no usable settings left, + * causing the resulting setup to fail. + * At least one CPU should match, otherwise we should have + * bailed out on a higher level, since there would be no + * CPU to support the transfer direction in that case. + */ + if (!snd_soc_dai_stream_valid(cpu_dai, + substream->stream)) + continue; + cpu_stream = snd_soc_dai_get_pcm_stream(cpu_dai, stream);

cpu_chan_min = max(cpu_chan_min, cpu_stream->channels_min); @@ -1115,6 +1129,13 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream, }

for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + /* + * Skip CPUs which don't support the current stream + * type. See soc_pcm_init_runtime_hw() for more details + */ + if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream)) + continue; + ret = snd_soc_dai_hw_params(cpu_dai, substream, params); if (ret < 0) goto interface_err; @@ -1150,6 +1171,9 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,

interface_err: for_each_rtd_cpu_dai_rollback(rtd, i, cpu_dai) { + if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream)) + continue; + snd_soc_dai_hw_free(cpu_dai, substream); cpu_dai->rate = 0; } @@ -1226,8 +1250,12 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream) snd_soc_dai_hw_free(codec_dai, substream); }

- for_each_rtd_cpu_dai(rtd, i, cpu_dai) + for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream)) + continue; + snd_soc_dai_hw_free(cpu_dai, substream); + }

mutex_unlock(&rtd->card->pcm_mutex); return 0; @@ -1904,6 +1932,13 @@ static void dpcm_runtime_merge_chan(struct snd_pcm_substream *substream, int i;

for_each_rtd_cpu_dai(be, i, dai) { + /* + * Skip CPUs which don't support the current stream + * type. See soc_pcm_init_runtime_hw() for more details + */ + if (!snd_soc_dai_stream_valid(dai, stream)) + continue; + cpu_stream = snd_soc_dai_get_pcm_stream(dai, stream);

*channels_min = max(*channels_min, @@ -1952,6 +1987,13 @@ static void dpcm_runtime_merge_rate(struct snd_pcm_substream *substream, int i;

for_each_rtd_cpu_dai(be, i, dai) { + /* + * Skip CPUs which don't support the current stream + * type. See soc_pcm_init_runtime_hw() for more details + */ + if (!snd_soc_dai_stream_valid(dai, stream)) + continue; + cpu_stream = snd_soc_dai_get_pcm_stream(dai, stream);

*rate_min = max(*rate_min, cpu_stream->rate_min); @@ -1989,6 +2031,13 @@ static void dpcm_set_fe_runtime(struct snd_pcm_substream *substream) int i;

for_each_rtd_cpu_dai(rtd, i, cpu_dai) { + /* + * Skip CPUs which don't support the current stream + * type. See soc_pcm_init_runtime_hw() for more details + */ + if (!snd_soc_dai_stream_valid(cpu_dai, substream->stream)) + continue; + cpu_dai_drv = cpu_dai->driver; if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) dpcm_init_runtime_hw(runtime, &cpu_dai_drv->playback);