@@ -2732,7 +2732,10 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd,
int *playback, int *capture)
{
struct snd_soc_dai_link *dai_link = rtd->dai_link;
+ struct snd_soc_dai *codec_dai;
struct snd_soc_dai *cpu_dai;
+ int cpu_capture = SNDRV_PCM_STREAM_CAPTURE;
+ int cpu_playback = SNDRV_PCM_STREAM_PLAYBACK;
int has_playback = 0;
int has_capture = 0;
int i;
@@ -2748,61 +2751,34 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd,
return -EINVAL;
}
- if (dai_link->dynamic || dai_link->no_pcm) {
- int stream;
-
- if (dai_link->dpcm_playback) {
- stream = SNDRV_PCM_STREAM_PLAYBACK;
+ /* Adapt stream for codec2codec links */
+ if (dai_link->c2c_params) {
+ cpu_capture = SNDRV_PCM_STREAM_PLAYBACK;
+ cpu_playback = SNDRV_PCM_STREAM_CAPTURE;
+ }
- for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
- if (snd_soc_dai_stream_valid(cpu_dai, stream)) {
- has_playback = 1;
- break;
- }
- }
- if (!has_playback) {
- dev_err(rtd->card->dev,
- "No CPU DAIs support playback for stream %s\n",
- dai_link->stream_name);
- return -EINVAL;
- }
- }
- if (dai_link->dpcm_capture) {
- stream = SNDRV_PCM_STREAM_CAPTURE;
+ /* REMOVE ME */
+ if (dai_link->dpcm_playback && !dai_link->dpcm_capture)
+ dai_link->playback_only = 1;
+ if (!dai_link->dpcm_playback && dai_link->dpcm_capture)
+ dai_link->capture_only = 1;
- for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
- if (snd_soc_dai_stream_valid(cpu_dai, stream)) {
- has_capture = 1;
- break;
- }
- }
+ for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
+ codec_dai = asoc_rtd_to_codec(rtd, i); /* get paired codec */
- if (!has_capture) {
- dev_err(rtd->card->dev,
- "No CPU DAIs support capture for stream %s\n",
- dai_link->stream_name);
- return -EINVAL;
- }
- }
- } else {
- struct snd_soc_dai *codec_dai;
-
- /* Adapt stream for codec2codec links */
- int cpu_capture = dai_link->c2c_params ?
- SNDRV_PCM_STREAM_PLAYBACK : SNDRV_PCM_STREAM_CAPTURE;
- int cpu_playback = dai_link->c2c_params ?
- SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
-
- for_each_rtd_codec_dais(rtd, i, codec_dai) {
- cpu_dai = asoc_rtd_to_cpu(rtd, i);
-
- if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) &&
- snd_soc_dai_stream_valid(cpu_dai, cpu_playback))
- has_playback = 1;
- if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_CAPTURE) &&
- snd_soc_dai_stream_valid(cpu_dai, cpu_capture))
- has_capture = 1;
- }
+ /*
+ * FIXME
+ *
+ * DPCM BE Codec has been no checked before.
+ * It should be checked, but it breaks compatibility.
+ * It ignores BE Codec here, so far.
+ */
+ if (snd_soc_dai_stream_valid(cpu_dai, cpu_playback) &&
+ (dai_link->no_pcm || snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK)))
+ has_playback = 1;
+ if (snd_soc_dai_stream_valid(cpu_dai, cpu_capture) &&
+ (dai_link->no_pcm || snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_CAPTURE)))
+ has_capture = 1;
}
if (dai_link->playback_only)
Current soc_get_playback_capture() (A) is checking playback/capture availability for DPCM (X) / Normal (Y) / Codec2Codec (Z) connections. (A) static int soc_get_playback_capture(...) { ... ^ if (dai_link->dynamic || dai_link->no_pcm) { | ... |(a) if (dai_link->dpcm_playback) { | ... | ^ for_each_rtd_cpu_dais(rtd, i, cpu_dai) { |(*) ... | v } | ... (X) } |(b) if (dai_link->dpcm_capture) { | ... | ^ for_each_rtd_cpu_dais(rtd, i, cpu_dai) { |(*) ... | v } | ... v } } else { ^ ^ /* Adapt stream for codec2codec links */ |(Z) int cpu_capture = ... | v int cpu_playback = ... (Y) | ^ for_each_rtd_codec_dais(rtd, i, codec_dai) { |(*) ... v v } } ... } (*) part is checking each DAI's availability. At first, (X) part is for DPCM, and it checks playback/capture availability if dai_link has dpcm_playback/capture flag (a)(b). But we are already using playback/capture_only flag. for Normal (Y) and Codec2Codec (Z). We can use this flags for DPCM too. Before After dpcm_playback = 1; => /* no flags */ dpcm_capture = 1; dpcm_playback = 1; => playback_only = 1; dpcm_capture = 1; => capture_only = 1; This patch enables both flags case, but dpcm_playback/capture flags will be removed if all driver were switched to new playback/capture_only flags. Here, CPU <-> Codec relationship is like this DPCM [CPU/dummy]-[dummy/Codec] ^^^^ ^^^^^ Normal [CPU/Codec] ^^^^^^^^^^^ DPCM part (X) is checking only CPU DAI, and Normal part (Y) is checking both CPU/Codec DAI Here, validation check on dummy DAI is always true. We want to expand validation check to all cases, but unfortunately DPCM BE Codec validation check will breaks compatibility on some devices. This patch ignore it with comment. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com> --- sound/soc/soc-pcm.c | 80 ++++++++++++++++----------------------------- 1 file changed, 28 insertions(+), 52 deletions(-)