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author | Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | 2023-11-13 01:28:27 +0000 |
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committer | Mark Brown <broonie@kernel.org> | 2023-11-27 13:44:00 +0000 |
commit | 45cc50d13433a62f23b7b4af380497aae5e8ddc7 (patch) | |
tree | 848a28bbfd7fe8ef6e1a81f2eca35f62914b90c3 /sound/soc/soc-pcm.c | |
parent | 74fc96e8d4b3a4f3ceb8d14c99f3e0ef70a0c381 (diff) | |
download | linux-stable-45cc50d13433a62f23b7b4af380497aae5e8ddc7.tar.gz linux-stable-45cc50d13433a62f23b7b4af380497aae5e8ddc7.tar.bz2 linux-stable-45cc50d13433a62f23b7b4af380497aae5e8ddc7.zip |
ASoC: makes CPU/Codec channel connection map more generic
Current ASoC CPU:Codec = N:M connection is using connection mapping idea,
but it is used for N < M case only. We want to use it for any case.
By this patch, not only N:M connection, but all existing connection
(1:1, 1:N, N:N) will use same connection mapping. Then, because it will
use default mapping, no conversion patch is needed to exising drivers.
More over, CPU:Codec = N:M (N > M) also supported in the same time.
ch_maps array will has CPU/Codec index by this patch.
Image
CPU0 <---> Codec0
CPU1 <-+-> Codec1
CPU2 <-/
ch_map
ch_map[0].cpu = 0 ch_map[0].codec = 0
ch_map[1].cpu = 1 ch_map[1].codec = 1
ch_map[2].cpu = 2 ch_map[2].codec = 1
Link: https://lore.kernel.org/r/87fs6wuszr.wl-kuninori.morimoto.gx@renesas.com
Link: https://lore.kernel.org/r/878r7yqeo4.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Tested-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/87ttpq4f2c.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/soc-pcm.c')
-rw-r--r-- | sound/soc/soc-pcm.c | 44 |
1 files changed, 14 insertions, 30 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 323e4d7b6adf..c20573aeb756 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1050,6 +1050,7 @@ static int __soc_pcm_hw_params(struct snd_soc_pcm_runtime *rtd, } for_each_rtd_cpu_dais(rtd, i, cpu_dai) { + struct snd_soc_dai_link_ch_map *ch_maps; unsigned int ch_mask = 0; int j; @@ -1063,22 +1064,20 @@ static int __soc_pcm_hw_params(struct snd_soc_pcm_runtime *rtd, /* copy params for each cpu */ tmp_params = *params; - if (!rtd->dai_link->codec_ch_maps) - goto hw_params; /* * construct cpu channel mask by combining ch_mask of each * codec which maps to the cpu. + * see + * soc.h :: [dai_link->ch_maps Image sample] */ - for_each_rtd_codec_dais(rtd, j, codec_dai) { - if (rtd->dai_link->codec_ch_maps[j].connected_cpu_id == i) - ch_mask |= rtd->dai_link->codec_ch_maps[j].ch_mask; - } + for_each_rtd_ch_maps(rtd, j, ch_maps) + if (ch_maps->cpu == i) + ch_mask |= ch_maps->ch_mask; /* fixup cpu channel number */ if (ch_mask) soc_pcm_codec_params_fixup(&tmp_params, ch_mask); -hw_params: ret = snd_soc_dai_hw_params(cpu_dai, substream, &tmp_params); if (ret < 0) goto out; @@ -2826,35 +2825,20 @@ static int soc_get_playback_capture(struct snd_soc_pcm_runtime *rtd, } } } else { + struct snd_soc_dai_link_ch_map *ch_maps; struct snd_soc_dai *codec_dai; /* Adapt stream for codec2codec links */ int cpu_capture = snd_soc_get_stream_cpu(dai_link, SNDRV_PCM_STREAM_CAPTURE); int cpu_playback = snd_soc_get_stream_cpu(dai_link, SNDRV_PCM_STREAM_PLAYBACK); - for_each_rtd_codec_dais(rtd, i, codec_dai) { - if (dai_link->num_cpus == 1) { - cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); - } else if (dai_link->num_cpus == dai_link->num_codecs) { - cpu_dai = snd_soc_rtd_to_cpu(rtd, i); - } else if (rtd->dai_link->num_codecs > rtd->dai_link->num_cpus) { - int cpu_id; - - if (!rtd->dai_link->codec_ch_maps) { - dev_err(rtd->card->dev, "%s: no codec channel mapping table provided\n", - __func__); - return -EINVAL; - } - - cpu_id = rtd->dai_link->codec_ch_maps[i].connected_cpu_id; - cpu_dai = snd_soc_rtd_to_cpu(rtd, cpu_id); - } else { - dev_err(rtd->card->dev, - "%s codec number %d < cpu number %d is not supported\n", - __func__, rtd->dai_link->num_codecs, - rtd->dai_link->num_cpus); - return -EINVAL; - } + /* + * see + * soc.h :: [dai_link->ch_maps Image sample] + */ + for_each_rtd_ch_maps(rtd, i, ch_maps) { + cpu_dai = snd_soc_rtd_to_cpu(rtd, ch_maps->cpu); + codec_dai = snd_soc_rtd_to_codec(rtd, ch_maps->codec); if (snd_soc_dai_stream_valid(codec_dai, SNDRV_PCM_STREAM_PLAYBACK) && snd_soc_dai_stream_valid(cpu_dai, cpu_playback)) |