diff options
Diffstat (limited to 'include/sound/soc-dai.h')
| -rw-r--r-- | include/sound/soc-dai.h | 163 |
1 files changed, 115 insertions, 48 deletions
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index 352d7eee9b6d..e7b680248006 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -16,6 +16,8 @@ #include <linux/list.h> +#include <sound/soc.h> + struct snd_pcm_substream; /* @@ -27,9 +29,10 @@ struct snd_pcm_substream; #define SND_SOC_DAIFMT_I2S 0 /* I2S mode */ #define SND_SOC_DAIFMT_RIGHT_J 1 /* Right Justified mode */ #define SND_SOC_DAIFMT_LEFT_J 2 /* Left Justified mode */ -#define SND_SOC_DAIFMT_DSP_A 3 /* L data msb after FRM LRC */ -#define SND_SOC_DAIFMT_DSP_B 4 /* L data msb during FRM LRC */ +#define SND_SOC_DAIFMT_DSP_A 3 /* L data MSB after FRM LRC */ +#define SND_SOC_DAIFMT_DSP_B 4 /* L data MSB during FRM LRC */ #define SND_SOC_DAIFMT_AC97 5 /* AC97 */ +#define SND_SOC_DAIFMT_PDM 6 /* Pulse density modulation */ /* left and right justified also known as MSB and LSB respectively */ #define SND_SOC_DAIFMT_MSB SND_SOC_DAIFMT_LEFT_J @@ -38,7 +41,7 @@ struct snd_pcm_substream; /* * DAI Clock gating. * - * DAI bit clocks can be be gated (disabled) when not the DAI is not + * DAI bit clocks can be be gated (disabled) when the DAI is not * sending or receiving PCM data in a frame. This can be used to save power. */ #define SND_SOC_DAIFMT_CONT (0 << 4) /* continuous clock */ @@ -51,21 +54,21 @@ struct snd_pcm_substream; * format. */ #define SND_SOC_DAIFMT_NB_NF (0 << 8) /* normal bit clock + frame */ -#define SND_SOC_DAIFMT_NB_IF (1 << 8) /* normal bclk + inv frm */ -#define SND_SOC_DAIFMT_IB_NF (2 << 8) /* invert bclk + nor frm */ -#define SND_SOC_DAIFMT_IB_IF (3 << 8) /* invert bclk + frm */ +#define SND_SOC_DAIFMT_NB_IF (1 << 8) /* normal BCLK + inv FRM */ +#define SND_SOC_DAIFMT_IB_NF (2 << 8) /* invert BCLK + nor FRM */ +#define SND_SOC_DAIFMT_IB_IF (3 << 8) /* invert BCLK + FRM */ /* * DAI hardware clock masters. * * This is wrt the codec, the inverse is true for the interface - * i.e. if the codec is clk and frm master then the interface is + * i.e. if the codec is clk and FRM master then the interface is * clk and frame slave. */ -#define SND_SOC_DAIFMT_CBM_CFM (0 << 12) /* codec clk & frm master */ -#define SND_SOC_DAIFMT_CBS_CFM (1 << 12) /* codec clk slave & frm master */ +#define SND_SOC_DAIFMT_CBM_CFM (0 << 12) /* codec clk & FRM master */ +#define SND_SOC_DAIFMT_CBS_CFM (1 << 12) /* codec clk slave & FRM master */ #define SND_SOC_DAIFMT_CBM_CFS (2 << 12) /* codec clk master & frame slave */ -#define SND_SOC_DAIFMT_CBS_CFS (3 << 12) /* codec clk & frm slave */ +#define SND_SOC_DAIFMT_CBS_CFS (3 << 12) /* codec clk & FRM slave */ #define SND_SOC_DAIFMT_FORMAT_MASK 0x000f #define SND_SOC_DAIFMT_CLOCK_MASK 0x00f0 @@ -78,19 +81,27 @@ struct snd_pcm_substream; #define SND_SOC_CLOCK_IN 0 #define SND_SOC_CLOCK_OUT 1 -#define SND_SOC_STD_AC97_FMTS (SNDRV_PCM_FMTBIT_S16_LE |\ +#define SND_SOC_STD_AC97_FMTS (SNDRV_PCM_FMTBIT_S8 |\ + SNDRV_PCM_FMTBIT_S16_LE |\ + SNDRV_PCM_FMTBIT_S16_BE |\ + SNDRV_PCM_FMTBIT_S20_3LE |\ + SNDRV_PCM_FMTBIT_S20_3BE |\ + SNDRV_PCM_FMTBIT_S24_3LE |\ + SNDRV_PCM_FMTBIT_S24_3BE |\ SNDRV_PCM_FMTBIT_S32_LE |\ SNDRV_PCM_FMTBIT_S32_BE) -struct snd_soc_dai_ops; +struct snd_soc_dai_driver; struct snd_soc_dai; struct snd_ac97_bus_ops; /* Digital Audio Interface registration */ -int snd_soc_register_dai(struct snd_soc_dai *dai); -void snd_soc_unregister_dai(struct snd_soc_dai *dai); -int snd_soc_register_dais(struct snd_soc_dai *dai, size_t count); -void snd_soc_unregister_dais(struct snd_soc_dai *dai, size_t count); +int snd_soc_register_dai(struct device *dev, + struct snd_soc_dai_driver *dai_drv); +void snd_soc_unregister_dai(struct device *dev); +int snd_soc_register_dais(struct device *dev, + struct snd_soc_dai_driver *dai_drv, size_t count); +void snd_soc_unregister_dais(struct device *dev, size_t count); /* Digital Audio Interface clocking API.*/ int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, @@ -100,29 +111,23 @@ int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai, int div_id, int div); int snd_soc_dai_set_pll(struct snd_soc_dai *dai, - int pll_id, unsigned int freq_in, unsigned int freq_out); + int pll_id, int source, unsigned int freq_in, unsigned int freq_out); /* Digital Audio interface formatting */ int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt); int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai, - unsigned int mask, int slots); + unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width); + +int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai, + unsigned int tx_num, unsigned int *tx_slot, + unsigned int rx_num, unsigned int *rx_slot); int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate); /* Digital Audio Interface mute */ int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute); -/* - * Digital Audio Interface. - * - * Describes the Digital Audio Interface in terms of it's ALSA, DAI and AC97 - * operations an capabilities. Codec and platfom drivers will register a this - * structure for every DAI they have. - * - * This structure covers the clocking, formating and ALSA operations for each - * interface a - */ struct snd_soc_dai_ops { /* * DAI clocking configuration, all optional. @@ -130,8 +135,8 @@ struct snd_soc_dai_ops { */ int (*set_sysclk)(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir); - int (*set_pll)(struct snd_soc_dai *dai, - int pll_id, unsigned int freq_in, unsigned int freq_out); + int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source, + unsigned int freq_in, unsigned int freq_out); int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div); /* @@ -140,7 +145,11 @@ struct snd_soc_dai_ops { */ int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt); int (*set_tdm_slot)(struct snd_soc_dai *dai, - unsigned int mask, int slots); + unsigned int tx_mask, unsigned int rx_mask, + int slots, int slot_width); + int (*set_channel_map)(struct snd_soc_dai *dai, + unsigned int tx_num, unsigned int *tx_slot, + unsigned int rx_num, unsigned int *rx_slot); int (*set_tristate)(struct snd_soc_dai *dai, int tristate); /* @@ -165,26 +174,33 @@ struct snd_soc_dai_ops { struct snd_soc_dai *); int (*trigger)(struct snd_pcm_substream *, int, struct snd_soc_dai *); + /* + * For hardware based FIFO caused delay reporting. + * Optional. + */ + snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *, + struct snd_soc_dai *); }; /* - * Digital Audio Interface runtime data. + * Digital Audio Interface Driver. * - * Holds runtime data for a DAI. + * Describes the Digital Audio Interface in terms of its ALSA, DAI and AC97 + * operations and capabilities. Codec and platform drivers will register this + * structure for every DAI they have. + * + * This structure covers the clocking, formating and ALSA operations for each + * interface. */ -struct snd_soc_dai { +struct snd_soc_dai_driver { /* DAI description */ - char *name; + const char *name; unsigned int id; int ac97_control; - struct device *dev; - - /* DAI callbacks */ - int (*probe)(struct platform_device *pdev, - struct snd_soc_dai *dai); - void (*remove)(struct platform_device *pdev, - struct snd_soc_dai *dai); + /* DAI driver callbacks */ + int (*probe)(struct snd_soc_dai *dai); + int (*remove)(struct snd_soc_dai *dai); int (*suspend)(struct snd_soc_dai *dai); int (*resume)(struct snd_soc_dai *dai); @@ -195,21 +211,72 @@ struct snd_soc_dai { struct snd_soc_pcm_stream capture; struct snd_soc_pcm_stream playback; unsigned int symmetric_rates:1; +}; + +/* + * Digital Audio Interface runtime data. + * + * Holds runtime data for a DAI. + */ +struct snd_soc_dai { + const char *name; + int id; + struct device *dev; + void *ac97_pdata; /* platform_data for the ac97 codec */ + + /* driver ops */ + struct snd_soc_dai_driver *driver; /* DAI runtime info */ + unsigned int capture_active:1; /* stream is in use */ + unsigned int playback_active:1; /* stream is in use */ + unsigned int symmetric_rates:1; struct snd_pcm_runtime *runtime; - struct snd_soc_codec *codec; unsigned int active; unsigned char pop_wait:1; - void *dma_data; + unsigned char probed:1; - /* DAI private data */ - void *private_data; + /* DAI DMA data */ + void *playback_dma_data; + void *capture_dma_data; - /* parent platform */ - struct snd_soc_platform *platform; + /* parent platform/codec */ + union { + struct snd_soc_platform *platform; + struct snd_soc_codec *codec; + }; + struct snd_soc_card *card; struct list_head list; + struct list_head card_list; }; +static inline void *snd_soc_dai_get_dma_data(const struct snd_soc_dai *dai, + const struct snd_pcm_substream *ss) +{ + return (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) ? + dai->playback_dma_data : dai->capture_dma_data; +} + +static inline void snd_soc_dai_set_dma_data(struct snd_soc_dai *dai, + const struct snd_pcm_substream *ss, + void *data) +{ + if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK) + dai->playback_dma_data = data; + else + dai->capture_dma_data = data; +} + +static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai, + void *data) +{ + dev_set_drvdata(dai->dev, data); +} + +static inline void *snd_soc_dai_get_drvdata(struct snd_soc_dai *dai) +{ + return dev_get_drvdata(dai->dev); +} + #endif |