diff options
Diffstat (limited to 'include/sound/soc.h')
| -rw-r--r-- | include/sound/soc.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h index 5d3954774ade..275e41133468 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -238,6 +238,7 @@ struct soc_enum; struct snd_soc_ac97_ops; struct snd_soc_jack; struct snd_soc_jack_pin; +struct snd_soc_cache_ops; #include <sound/soc-dapm.h> #ifdef CONFIG_GPIOLIB @@ -254,6 +255,10 @@ enum snd_soc_control_type { SND_SOC_SPI, }; +enum snd_soc_compress_type { + SND_SOC_NO_COMPRESSION +}; + int snd_soc_register_platform(struct device *dev, struct snd_soc_platform_driver *platform_drv); void snd_soc_unregister_platform(struct device *dev); @@ -265,6 +270,13 @@ int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, int reg); int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec, int addr_bits, int data_bits, enum snd_soc_control_type control); +int snd_soc_cache_sync(struct snd_soc_codec *codec); +int snd_soc_cache_init(struct snd_soc_codec *codec); +int snd_soc_cache_exit(struct snd_soc_codec *codec); +int snd_soc_cache_write(struct snd_soc_codec *codec, + unsigned int reg, unsigned int value); +int snd_soc_cache_read(struct snd_soc_codec *codec, + unsigned int reg, unsigned int *value); /* Utility functions to get clock rates from various things */ int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots); @@ -421,6 +433,18 @@ struct snd_soc_ops { int (*trigger)(struct snd_pcm_substream *, int); }; +/* SoC cache ops */ +struct snd_soc_cache_ops { + enum snd_soc_compress_type id; + int (*init)(struct snd_soc_codec *codec); + int (*exit)(struct snd_soc_codec *codec); + int (*read)(struct snd_soc_codec *codec, unsigned int reg, + unsigned int *value); + int (*write)(struct snd_soc_codec *codec, unsigned int reg, + unsigned int value); + int (*sync)(struct snd_soc_codec *codec); +}; + /* SoC Audio Codec device */ struct snd_soc_codec { const char *name; @@ -450,6 +474,8 @@ struct snd_soc_codec { hw_write_t hw_write; unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int); void *reg_cache; + const struct snd_soc_cache_ops *cache_ops; + struct mutex cache_rw_mutex; /* dapm */ struct snd_soc_dapm_context dapm; @@ -482,6 +508,7 @@ struct snd_soc_codec_driver { short reg_cache_step; short reg_word_size; const void *reg_cache_default; + enum snd_soc_compress_type compress_type; /* codec bias level */ int (*set_bias_level)(struct snd_soc_codec *, |