diff options
Diffstat (limited to 'include/sound/soc.h')
| -rw-r--r-- | include/sound/soc.h | 58 |
1 files changed, 54 insertions, 4 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h index ccc31bc41e92..6defc5547ff9 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -656,8 +656,45 @@ struct snd_soc_dai_link_component { struct of_phandle_args *dai_args; }; -struct snd_soc_dai_link_codec_ch_map { - unsigned int connected_cpu_id; +/* + * [dai_link->ch_maps Image sample] + * + *------------------------- + * CPU0 <---> Codec0 + * + * ch-map[0].cpu = 0 ch-map[0].codec = 0 + * + *------------------------- + * CPU0 <---> Codec0 + * CPU1 <---> Codec1 + * CPU2 <---> Codec2 + * + * 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 = 2 + * + *------------------------- + * CPU0 <---> Codec0 + * CPU1 <-+-> Codec1 + * CPU2 <-/ + * + * 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 + * + *------------------------- + * CPU0 <---> Codec0 + * CPU1 <-+-> Codec1 + * \-> Codec2 + * + * ch-map[0].cpu = 0 ch-map[0].codec = 0 + * ch-map[1].cpu = 1 ch-map[1].codec = 1 + * ch-map[2].cpu = 1 ch-map[2].codec = 2 + * + */ +struct snd_soc_dai_link_ch_map { + unsigned int cpu; + unsigned int codec; unsigned int ch_mask; }; @@ -689,7 +726,9 @@ struct snd_soc_dai_link { struct snd_soc_dai_link_component *codecs; unsigned int num_codecs; - struct snd_soc_dai_link_codec_ch_map *codec_ch_maps; + /* num_ch_maps = max(num_cpu, num_codecs) */ + struct snd_soc_dai_link_ch_map *ch_maps; + /* * You MAY specify the link's platform/PCM/DMA driver, either by * device name, or by DT/OF node, but not both. Some forms of link @@ -776,6 +815,10 @@ struct snd_soc_dai_link { #endif }; +static inline int snd_soc_link_num_ch_map(struct snd_soc_dai_link *link) { + return max(link->num_cpus, link->num_codecs); +} + static inline struct snd_soc_dai_link_component* snd_soc_link_to_cpu(struct snd_soc_dai_link *link, int n) { return &(link)->cpus[n]; @@ -809,6 +852,12 @@ snd_soc_link_to_platform(struct snd_soc_dai_link *link, int n) { ((cpu) = snd_soc_link_to_cpu(link, i)); \ (i)++) +#define for_each_link_ch_maps(link, i, ch_map) \ + for ((i) = 0; \ + ((i) < snd_soc_link_num_ch_map(link) && \ + ((ch_map) = link->ch_maps + i)); \ + (i)++) + /* * Sample 1 : Single CPU/Codec/Platform * @@ -890,7 +939,7 @@ snd_soc_link_to_platform(struct snd_soc_dai_link *link, int n) { #define COMP_PLATFORM(_name) { .name = _name } #define COMP_AUX(_name) { .name = _name } #define COMP_CODEC_CONF(_name) { .name = _name } -#define COMP_DUMMY() { .name = "snd-soc-dummy", .dai_name = "snd-soc-dummy-dai", } +#define COMP_DUMMY() /* see snd_soc_fill_dummy_dai() */ extern struct snd_soc_dai_link_component null_dailink_component[0]; extern struct snd_soc_dai_link_component snd_soc_dummy_dlc; @@ -1164,6 +1213,7 @@ struct snd_soc_pcm_runtime { ((i) < (rtd)->dai_link->num_cpus + (rtd)->dai_link->num_codecs) && \ ((dai) = (rtd)->dais[i]); \ (i)++) +#define for_each_rtd_ch_maps(rtd, i, ch_maps) for_each_link_ch_maps(rtd->dai_link, i, ch_maps) void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd); |