system/linux
system/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux synced 2024-10-01 00:39:03 +00:00
Code Issues Packages Projects Releases Wiki Activity

ASoC: Intel: sof_sdw: add dai_link_codec_ch_map

Browse source 
The captured data will be combined from each cpu DAI if the dai link
has more than one cpu DAIs. We can set channel number indirectly by
adding sdw_codec_ch_maps.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20230607031242.1032060-3-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Bard Liao 2023-06-07 11:12:42 +08:00 committed by Mark Brown
parent ac950278b0
commit 0281b02e19
No known key found for this signature in database
GPG key ID: 24D68B725D5487D0
3 changed files with 72 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

69
sound/soc/intel/boards/sof_sdw.c
View file

@ -560,6 +560,55 @@ int sdw_trigger(struct snd_pcm_substream *substream, int cmd)
return ret;
}
int sdw_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
int ch = params_channels(params);
struct snd_soc_dai *codec_dai;
struct snd_soc_dai *cpu_dai;
unsigned int ch_mask;
int num_codecs;
int step;
int i;
int j;
if (!rtd->dai_link->codec_ch_maps)
return 0;
/* Identical data will be sent to all codecs in playback */
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
ch_mask = GENMASK(ch - 1, 0);
step = 0;
} else {
num_codecs = rtd->dai_link->num_codecs;
if (ch < num_codecs || ch % num_codecs != 0) {
dev_err(rtd->dev, "Channels number %d is invalid when codec number = %d\n",
ch, num_codecs);
return -EINVAL;
}
ch_mask = GENMASK(ch / num_codecs - 1, 0);
step = hweight_long(ch_mask);
}
/*
* The captured data will be combined from each cpu DAI if the dai
* link has more than one codec DAIs. Set codec channel mask and
* ASoC will set the corresponding channel numbers for each cpu dai.
*/
for_each_rtd_cpu_dais(rtd, i, cpu_dai) {
for_each_rtd_codec_dais(rtd, j, codec_dai) {
if (rtd->dai_link->codec_ch_maps[j].connected_cpu_id != i)
continue;
rtd->dai_link->codec_ch_maps[j].ch_mask = ch_mask << (j * step);
}
}
return 0;
}
int sdw_hw_free(struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
@ -588,6 +637,7 @@ static const struct snd_soc_ops sdw_ops = {
.startup = sdw_startup,
.prepare = sdw_prepare,
.trigger = sdw_trigger,
.hw_params = sdw_hw_params,
.hw_free = sdw_hw_free,
.shutdown = sdw_shutdown,
};
@ -1281,6 +1331,17 @@ static int get_slave_info(const struct snd_soc_acpi_link_adr *adr_link,
return 0;
}
static void set_dailink_map(struct snd_soc_dai_link_codec_ch_map *sdw_codec_ch_maps,
int codec_num, int cpu_num)
{
int step;
int i;
step = codec_num / cpu_num;
for (i = 0; i < codec_num; i++)
sdw_codec_ch_maps[i].connected_cpu_id = i / step;
}
static const char * const type_strings[] = {"SimpleJack", "SmartAmp", "SmartMic"};
static int create_sdw_dailink(struct snd_soc_card *card,
@ -1357,6 +1418,7 @@ static int create_sdw_dailink(struct snd_soc_card *card,
cpu_dai_index = *cpu_id;
for_each_pcm_streams(stream) {
struct snd_soc_dai_link_codec_ch_map *sdw_codec_ch_maps;
char *name, *cpu_name;
int playback, capture;
static const char * const sdw_stream_name[] = {
@ -1375,6 +1437,11 @@ static int create_sdw_dailink(struct snd_soc_card *card,
return -EINVAL;
}
sdw_codec_ch_maps = devm_kcalloc(dev, codec_num,
sizeof(*sdw_codec_ch_maps), GFP_KERNEL);
if (!sdw_codec_ch_maps)
return -ENOMEM;
/* create stream name according to first link id */
if (append_dai_type) {
name = devm_kasprintf(dev, GFP_KERNEL,
@ -1435,6 +1502,8 @@ static int create_sdw_dailink(struct snd_soc_card *card,
*/
dai_links[*link_index].nonatomic = true;
set_dailink_map(sdw_codec_ch_maps, codec_num, cpu_dai_num);
dai_links[*link_index].codec_ch_maps = sdw_codec_ch_maps;
ret = set_codec_init_func(card, link, dai_links + (*link_index)++,
playback, group_id, adr_index, dai_index);
if (ret < 0) {

2
sound/soc/intel/boards/sof_sdw_common.h
View file

@ -103,6 +103,8 @@ extern unsigned long sof_sdw_quirk;
int sdw_startup(struct snd_pcm_substream *substream);
int sdw_prepare(struct snd_pcm_substream *substream);
int sdw_trigger(struct snd_pcm_substream *substream, int cmd);
int sdw_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params);
int sdw_hw_free(struct snd_pcm_substream *substream);
void sdw_shutdown(struct snd_pcm_substream *substream);

1
sound/soc/intel/boards/sof_sdw_maxim.c
View file

@ -123,6 +123,7 @@ static const struct snd_soc_ops max_98373_sdw_ops = {
.startup = sdw_startup,
.prepare = mx8373_sdw_prepare,
.trigger = sdw_trigger,
.hw_params = sdw_hw_params,
.hw_free = mx8373_sdw_hw_free,
.shutdown = sdw_shutdown,
};