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Diffstat (limited to 'include/sound/soc-dai.h')
| -rw-r--r-- | include/sound/soc-dai.h | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h deleted file mode 100644 index 24247f763608..000000000000 --- a/include/sound/soc-dai.h +++ /dev/null @@ -1,231 +0,0 @@ -/* - * 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> - -struct snd_pcm_substream; - -/* - * DAI hardware audio formats. - * - * Describes the physical PCM data formating and clocking. Add new formats - * to the end. - */ -#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_AC97 5 /* AC97 */ - -/* 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 not 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 */ -#define SND_SOC_DAIFMT_GATED (1 << 4) /* clock is gated */ - -/* - * DAI Left/Right Clocks. - * - * Specifies whether the DAI can support different samples for similtanious - * playback and capture. This usually requires a seperate physical frame - * clock for playback and capture. - */ -#define SND_SOC_DAIFMT_SYNC (0 << 5) /* Tx FRM = Rx FRM */ -#define SND_SOC_DAIFMT_ASYNC (1 << 5) /* Tx FRM ~ Rx FRM */ - -/* - * TDM - * - * Time Division Multiplexing. Allows PCM data to be multplexed with other - * data on the DAI. - */ -#define SND_SOC_DAIFMT_TDM (1 << 6) - -/* - * DAI hardware signal inversions. - * - * Specifies whether the DAI can also support inverted clocks for the specified - * 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 */ - -/* - * 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 (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_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 - -struct snd_soc_dai_ops; -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); - -/* 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, 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); - -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. - * 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, unsigned int freq_in, unsigned int freq_out); - int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div); - - /* - * 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 (*set_tdm_slot)(struct snd_soc_dai *dai, - unsigned int mask, int slots); - 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); - - /* - * 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 *); - int (*trigger)(struct snd_pcm_substream *, int, - struct snd_soc_dai *); -}; - -/* - * Digital Audio Interface runtime data. - * - * Holds runtime data for a DAI. - */ -struct snd_soc_dai { - /* DAI description */ - 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); - int (*suspend)(struct snd_soc_dai *dai); - int (*resume)(struct snd_soc_dai *dai); - - /* ops */ - struct snd_soc_dai_ops ops; - - /* DAI capabilities */ - struct snd_soc_pcm_stream capture; - struct snd_soc_pcm_stream playback; - - /* DAI runtime info */ - struct snd_pcm_runtime *runtime; - struct snd_soc_codec *codec; - unsigned int active; - unsigned char pop_wait:1; - void *dma_data; - - /* DAI private data */ - void *private_data; - - /* parent codec/platform */ - union { - struct snd_soc_codec *codec; - struct snd_soc_platform *platform; - }; - - struct list_head list; -}; - -#endif |