/* * linux/sound/soc-dai.h -- ALSA SoC Layer * * Copyright: 2005-2008 Wolfson Microelectronics. PLC. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * Digital Audio Interface (DAI) API. */ #ifndef __LINUX_SND_SOC_DAI_H #define __LINUX_SND_SOC_DAI_H #include <linux/list.h> #include <sound/asoc.h> struct snd_pcm_substream; struct snd_soc_dapm_widget; struct snd_compr_stream; /* * DAI hardware audio formats. * * Describes the physical PCM data formating and clocking. Add new formats * to the end. */ #define SND_SOC_DAIFMT_I2S SND_SOC_DAI_FORMAT_I2S #define SND_SOC_DAIFMT_RIGHT_J SND_SOC_DAI_FORMAT_RIGHT_J #define SND_SOC_DAIFMT_LEFT_J SND_SOC_DAI_FORMAT_LEFT_J #define SND_SOC_DAIFMT_DSP_A SND_SOC_DAI_FORMAT_DSP_A #define SND_SOC_DAIFMT_DSP_B SND_SOC_DAI_FORMAT_DSP_B #define SND_SOC_DAIFMT_AC97 SND_SOC_DAI_FORMAT_AC97 #define SND_SOC_DAIFMT_PDM SND_SOC_DAI_FORMAT_PDM /* left and right justified also known as MSB and LSB respectively */ #define SND_SOC_DAIFMT_MSB SND_SOC_DAIFMT_LEFT_J #define SND_SOC_DAIFMT_LSB SND_SOC_DAIFMT_RIGHT_J /* * DAI Clock gating. * * 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 (1 << 4) /* continuous clock */ #define SND_SOC_DAIFMT_GATED (0 << 4) /* clock is gated */ /* * DAI hardware signal polarity. * * Specifies whether the DAI can also support inverted clocks for the specified * format. * * BCLK: * - "normal" polarity means signal is available at rising edge of BCLK * - "inverted" polarity means signal is available at falling edge of BCLK * * FSYNC "normal" polarity depends on the frame format: * - I2S: frame consists of left then right channel data. Left channel starts * with falling FSYNC edge, right channel starts with rising FSYNC edge. * - Left/Right Justified: frame consists of left then right channel data. * Left channel starts with rising FSYNC edge, right channel starts with * falling FSYNC edge. * - DSP A/B: Frame starts with rising FSYNC edge. * - AC97: Frame starts with rising FSYNC edge. * * "Negative" FSYNC polarity is the one opposite of "normal" polarity. */ #define SND_SOC_DAIFMT_NB_NF (0 << 8) /* normal bit clock + frame */ #define SND_SOC_DAIFMT_NB_IF (2 << 8) /* normal BCLK + inv FRM */ #define SND_SOC_DAIFMT_IB_NF (3 << 8) /* invert BCLK + nor FRM */ #define SND_SOC_DAIFMT_IB_IF (4 << 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 * clk and frame slave. */ #define SND_SOC_DAIFMT_CBM_CFM (1 << 12) /* codec clk & FRM master */ #define SND_SOC_DAIFMT_CBS_CFM (2 << 12) /* codec clk slave & FRM master */ #define SND_SOC_DAIFMT_CBM_CFS (3 << 12) /* codec clk master & frame slave */ #define SND_SOC_DAIFMT_CBS_CFS (4 << 12) /* codec clk & FRM slave */ #define SND_SOC_DAIFMT_FORMAT_MASK 0x000f #define SND_SOC_DAIFMT_CLOCK_MASK 0x00f0 #define SND_SOC_DAIFMT_INV_MASK 0x0f00 #define SND_SOC_DAIFMT_MASTER_MASK 0xf000 /* * Master Clock Directions */ #define SND_SOC_CLOCK_IN 0 #define SND_SOC_CLOCK_OUT 1 #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_driver; struct snd_soc_dai; struct snd_ac97_bus_ops; /* Digital Audio Interface clocking API.*/ int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id, unsigned int freq, int dir); 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, int source, unsigned int freq_in, unsigned int freq_out); int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio); /* 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 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, int direction); int snd_soc_dai_is_dummy(struct snd_soc_dai *dai); struct snd_soc_dai_ops { /* * DAI clocking configuration, all optional. * Called by soc_card drivers, normally in their hw_params. */ 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, int source, unsigned int freq_in, unsigned int freq_out); int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div); int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio); /* * DAI format configuration * Called by soc_card drivers, normally in their hw_params. */ int (*set_fmt)(struct snd_soc_dai *dai, unsigned int fmt); int (*xlate_tdm_slot_mask)(unsigned int slots, unsigned int *tx_mask, unsigned int *rx_mask); int (*set_tdm_slot)(struct snd_soc_dai *dai, 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); /* * DAI digital mute - optional. * Called by soc-core to minimise any pops. */ int (*digital_mute)(struct snd_soc_dai *dai, int mute); int (*mute_stream)(struct snd_soc_dai *dai, int mute, int stream); /* * ALSA PCM audio operations - all optional. * Called by soc-core during audio PCM operations. */ int (*startup)(struct snd_pcm_substream *, struct snd_soc_dai *); void (*shutdown)(struct snd_pcm_substream *, struct snd_soc_dai *); int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *, struct snd_soc_dai *); int (*hw_free)(struct snd_pcm_substream *, struct snd_soc_dai *); int (*prepare)(struct snd_pcm_substream *, struct snd_soc_dai *); /* * NOTE: Commands passed to the trigger function are not necessarily * compatible with the current state of the dai. For example this * sequence of commands is possible: START STOP STOP. * So do not unconditionally use refcounting functions in the trigger * function, e.g. clk_enable/disable. */ int (*trigger)(struct snd_pcm_substream *, int, struct snd_soc_dai *); int (*bespoke_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 *); }; struct snd_soc_cdai_ops { /* * for compress ops */ int (*startup)(struct snd_compr_stream *, struct snd_soc_dai *); int (*shutdown)(struct snd_compr_stream *, struct snd_soc_dai *); int (*set_params)(struct snd_compr_stream *, struct snd_compr_params *, struct snd_soc_dai *); int (*get_params)(struct snd_compr_stream *, struct snd_codec *, struct snd_soc_dai *); int (*set_metadata)(struct snd_compr_stream *, struct snd_compr_metadata *, struct snd_soc_dai *); int (*get_metadata)(struct snd_compr_stream *, struct snd_compr_metadata *, struct snd_soc_dai *); int (*trigger)(struct snd_compr_stream *, int, struct snd_soc_dai *); int (*pointer)(struct snd_compr_stream *, struct snd_compr_tstamp *, struct snd_soc_dai *); int (*ack)(struct snd_compr_stream *, size_t, struct snd_soc_dai *); }; /* * Digital Audio Interface Driver. * * 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_driver { /* DAI description */ const char *name; unsigned int id; unsigned int base; struct snd_soc_dobj dobj; /* 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); /* compress dai */ int (*compress_new)(struct snd_soc_pcm_runtime *rtd, int num); /* Optional Callback used at pcm creation*/ int (*pcm_new)(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai); /* DAI is also used for the control bus */ bool bus_control; /* ops */ const struct snd_soc_dai_ops *ops; const struct snd_soc_cdai_ops *cops; /* DAI capabilities */ struct snd_soc_pcm_stream capture; struct snd_soc_pcm_stream playback; unsigned int symmetric_rates:1; unsigned int symmetric_channels:1; unsigned int symmetric_samplebits:1; /* probe ordering - for components with runtime dependencies */ int probe_order; int remove_order; }; /* * Digital Audio Interface runtime data. * * Holds runtime data for a DAI. */ struct snd_soc_dai { const char *name; int id; struct device *dev; /* 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; unsigned int symmetric_channels:1; unsigned int symmetric_samplebits:1; unsigned int probed:1; unsigned int active; struct snd_soc_dapm_widget *playback_widget; struct snd_soc_dapm_widget *capture_widget; /* DAI DMA data */ void *playback_dma_data; void *capture_dma_data; /* Symmetry data - only valid if symmetry is being enforced */ unsigned int rate; unsigned int channels; unsigned int sample_bits; /* parent platform/codec */ struct snd_soc_codec *codec; struct snd_soc_component *component; /* CODEC TDM slot masks and params (for fixup) */ unsigned int tx_mask; unsigned int rx_mask; struct list_head 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_init_dma_data(struct snd_soc_dai *dai, void *playback, void *capture) { dai->playback_dma_data = playback; dai->capture_dma_data = capture; } 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
Name | Type | Size | Permission | Actions |
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ac97 | Folder | 0755 |
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ac97_codec.h | File | 16.34 KB | 0644 |
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aci.h | File | 2.4 KB | 0644 |
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ad1816a.h | File | 5.38 KB | 0644 |
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ad1843.h | File | 1.48 KB | 0644 |
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adau1373.h | File | 699 B | 0644 |
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aess.h | File | 1.63 KB | 0644 |
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ak4113.h | File | 10.89 KB | 0644 |
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ak4114.h | File | 10.22 KB | 0644 |
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ak4117.h | File | 9.02 KB | 0644 |
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ak4531_codec.h | File | 3.1 KB | 0644 |
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ak4641.h | File | 622 B | 0644 |
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ak4xxx-adda.h | File | 3.34 KB | 0644 |
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alc5623.h | File | 536 B | 0644 |
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asequencer.h | File | 3.58 KB | 0644 |
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asound.h | File | 1.25 KB | 0644 |
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asoundef.h | File | 16.7 KB | 0644 |
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compress_driver.h | File | 6.93 KB | 0644 |
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control.h | File | 8.84 KB | 0644 |
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core.h | File | 13.84 KB | 0644 |
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cs35l33.h | File | 1.01 KB | 0644 |
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cs35l34.h | File | 887 B | 0644 |
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cs35l35.h | File | 2.36 KB | 0644 |
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cs4231-regs.h | File | 8.28 KB | 0644 |
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cs4271.h | File | 1.38 KB | 0644 |
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cs42l52.h | File | 738 B | 0644 |
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cs42l56.h | File | 1.16 KB | 0644 |
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cs42l73.h | File | 507 B | 0644 |
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cs8403.h | File | 8.63 KB | 0644 |
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cs8427.h | File | 10.4 KB | 0644 |
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da7213.h | File | 1.15 KB | 0644 |
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da7218.h | File | 2.62 KB | 0644 |
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da7219-aad.h | File | 2.42 KB | 0644 |
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da7219.h | File | 1.04 KB | 0644 |
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da9055.h | File | 914 B | 0644 |
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designware_i2s.h | File | 2.25 KB | 0644 |
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dmaengine_pcm.h | File | 6.22 KB | 0644 |
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emu10k1.h | File | 89.25 KB | 0644 |
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emu10k1_synth.h | File | 1.35 KB | 0644 |
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emu8000.h | File | 4.01 KB | 0644 |
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emu8000_reg.h | File | 10.21 KB | 0644 |
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emux_legacy.h | File | 5.37 KB | 0644 |
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emux_synth.h | File | 7.46 KB | 0644 |
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es1688.h | File | 3.53 KB | 0644 |
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gus.h | File | 20.21 KB | 0644 |
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hda_chmap.h | File | 2.6 KB | 0644 |
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hda_hwdep.h | File | 1.38 KB | 0644 |
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hda_i915.h | File | 1.64 KB | 0644 |
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hda_register.h | File | 10 KB | 0644 |
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hda_regmap.h | File | 6.59 KB | 0644 |
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hda_verbs.h | File | 16.81 KB | 0644 |
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hdaudio.h | File | 18.39 KB | 0644 |
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hdaudio_ext.h | File | 6.99 KB | 0644 |
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hdmi-codec.h | File | 2.42 KB | 0644 |
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hwdep.h | File | 2.56 KB | 0644 |
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i2c.h | File | 3.47 KB | 0644 |
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info.h | File | 7.41 KB | 0644 |
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initval.h | File | 3.08 KB | 0644 |
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jack.h | File | 3.75 KB | 0644 |
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l3.h | File | 524 B | 0644 |
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max9768.h | File | 729 B | 0644 |
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max98088.h | File | 1.26 KB | 0644 |
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max98090.h | File | 754 B | 0644 |
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max98095.h | File | 1.54 KB | 0644 |
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memalloc.h | File | 4.41 KB | 0644 |
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minors.h | File | 4.33 KB | 0644 |
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mixer_oss.h | File | 2.41 KB | 0644 |
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mpu401.h | File | 4.49 KB | 0644 |
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omap-hdmi-audio.h | File | 1.34 KB | 0644 |
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omap-pcm.h | File | 864 B | 0644 |
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opl3.h | File | 12.31 KB | 0644 |
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opl4.h | File | 1.1 KB | 0644 |
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pcm-indirect.h | File | 5.7 KB | 0644 |
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pcm.h | File | 47.51 KB | 0644 |
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pcm_drm_eld.h | File | 183 B | 0644 |
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pcm_iec958.h | File | 332 B | 0644 |
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pcm_oss.h | File | 2.69 KB | 0644 |
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pcm_params.h | File | 9.03 KB | 0644 |
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pt2258.h | File | 1.18 KB | 0644 |
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pxa2xx-lib.h | File | 1.48 KB | 0644 |
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rawmidi.h | File | 6.17 KB | 0644 |
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rt286.h | File | 460 B | 0644 |
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rt298.h | File | 519 B | 0644 |
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rt5514.h | File | 478 B | 0644 |
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rt5640.h | File | 648 B | 0644 |
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rt5645.h | File | 738 B | 0644 |
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rt5651.h | File | 581 B | 0644 |
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rt5659.h | File | 1003 B | 0644 |
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rt5660.h | File | 724 B | 0644 |
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rt5663.h | File | 622 B | 0644 |
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rt5665.h | File | 907 B | 0644 |
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rt5670.h | File | 679 B | 0644 |
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s3c24xx_uda134x.h | File | 229 B | 0644 |
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sb.h | File | 10.98 KB | 0644 |
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sb16_csp.h | File | 2.71 KB | 0644 |
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seq_device.h | File | 2.79 KB | 0644 |
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seq_kernel.h | File | 3.96 KB | 0644 |
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seq_midi_emul.h | File | 7.26 KB | 0644 |
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seq_midi_event.h | File | 2.17 KB | 0644 |
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seq_oss.h | File | 2.86 KB | 0644 |
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seq_oss_legacy.h | File | 1 KB | 0644 |
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seq_virmidi.h | File | 2.73 KB | 0644 |
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sh_dac_audio.h | File | 587 B | 0644 |
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sh_fsi.h | File | 847 B | 0644 |
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simple_card.h | File | 683 B | 0644 |
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simple_card_utils.h | File | 3.96 KB | 0644 |
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snd_wavefront.h | File | 5.57 KB | 0644 |
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soc-acpi-intel-match.h | File | 1.1 KB | 0644 |
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soc-acpi.h | File | 3.6 KB | 0644 |
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soc-dai.h | File | 11.13 KB | 0644 |
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soc-dapm.h | File | 30.87 KB | 0644 |
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soc-dpcm.h | File | 4.73 KB | 0644 |
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soc-topology.h | File | 5.71 KB | 0644 |
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soc.h | File | 63.47 KB | 0644 |
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soundfont.h | File | 4.48 KB | 0644 |
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spear_dma.h | File | 1003 B | 0644 |
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spear_spdif.h | File | 1010 B | 0644 |
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sta32x.h | File | 1.2 KB | 0644 |
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sta350.h | File | 1.65 KB | 0644 |
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tas2552-plat.h | File | 678 B | 0644 |
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tas5086.h | File | 210 B | 0644 |
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tea6330t.h | File | 1.14 KB | 0644 |
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timer.h | File | 5.56 KB | 0644 |
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tlv.h | File | 2.27 KB | 0644 |
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tlv320aic32x4.h | File | 1.43 KB | 0644 |
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tlv320aic3x.h | File | 1.88 KB | 0644 |
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tlv320dac33-plat.h | File | 720 B | 0644 |
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tpa6130a2-plat.h | File | 900 B | 0644 |
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uda134x.h | File | 597 B | 0644 |
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uda1380.h | File | 481 B | 0644 |
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util_mem.h | File | 2.26 KB | 0644 |
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vx_core.h | File | 15.34 KB | 0644 |
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wavefront.h | File | 18.76 KB | 0644 |
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wm0010.h | File | 679 B | 0644 |
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wm1250-ev1.h | File | 656 B | 0644 |
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wm2000.h | File | 625 B | 0644 |
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wm2200.h | File | 1.46 KB | 0644 |
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wm5100.h | File | 1.25 KB | 0644 |
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wm8903.h | File | 15.16 KB | 0644 |
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wm8904.h | File | 7.43 KB | 0644 |
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wm8955.h | File | 662 B | 0644 |
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wm8960.h | File | 603 B | 0644 |
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wm8962.h | File | 1.8 KB | 0644 |
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wm8993.h | File | 1.19 KB | 0644 |
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wm8996.h | File | 1.4 KB | 0644 |
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wm9081.h | File | 661 B | 0644 |
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wm9090.h | File | 780 B | 0644 |
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wss.h | File | 8.44 KB | 0644 |
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