/* * linux/sound/soc.h -- ALSA SoC Layer * * Author: Liam Girdwood * Created: Aug 11th 2005 * Copyright: 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. */ #ifndef __LINUX_SND_SOC_H #define __LINUX_SND_SOC_H #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* * Component probe and remove ordering levels for components with runtime * dependencies. */ #define SND_SOC_COMP_ORDER_FIRST -2 #define SND_SOC_COMP_ORDER_EARLY -1 #define SND_SOC_COMP_ORDER_NORMAL 0 #define SND_SOC_COMP_ORDER_LATE 1 #define SND_SOC_COMP_ORDER_LAST 2 #define snd_soc_get_enum_text(soc_enum, idx) \ (soc_enum->texts ? soc_enum->texts[idx] : soc_enum->dtexts[idx]) /* * Bias levels * * @ON: Bias is fully on for audio playback and capture operations. * @PREPARE: Prepare for audio operations. Called before DAPM switching for * stream start and stop operations. * @STANDBY: Low power standby state when no playback/capture operations are * in progress. NOTE: The transition time between STANDBY and ON * should be as fast as possible and no longer than 10ms. * @OFF: Power Off. No restrictions on transition times. */ enum snd_soc_bias_level { SND_SOC_BIAS_OFF = 0, SND_SOC_BIAS_STANDBY = 1, SND_SOC_BIAS_PREPARE = 2, SND_SOC_BIAS_ON = 3, }; struct device_node; struct snd_jack; struct snd_soc_card; struct snd_soc_pcm_stream; struct snd_soc_ops; struct snd_soc_pcm_runtime; struct snd_soc_dai; struct snd_soc_dai_driver; struct snd_soc_platform; struct snd_soc_dai_link; struct snd_soc_platform_driver; struct snd_soc_codec; struct snd_soc_codec_driver; struct snd_soc_component; struct snd_soc_component_driver; struct soc_enum; struct snd_soc_jack; struct snd_soc_jack_zone; struct snd_soc_jack_pin; struct snd_soc_cache_ops; #include #include #ifdef CONFIG_GPIOLIB struct snd_soc_jack_gpio; #endif typedef int (*hw_write_t)(void *,const char* ,int); extern struct snd_ac97_bus_ops soc_ac97_ops; enum snd_soc_control_type { SND_SOC_I2C = 1, SND_SOC_SPI, SND_SOC_REGMAP, }; enum snd_soc_compress_type { SND_SOC_FLAT_COMPRESSION = 1, }; enum snd_soc_pcm_subclass { SND_SOC_PCM_CLASS_PCM = 0, SND_SOC_PCM_CLASS_BE = 1, }; enum snd_soc_card_subclass { SND_SOC_CARD_CLASS_INIT = 0, SND_SOC_CARD_CLASS_RUNTIME = 1, }; int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id, int source, unsigned int freq, int dir); int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, unsigned int freq_in, unsigned int freq_out); int snd_soc_register_card(struct snd_soc_card *card); int snd_soc_unregister_card(struct snd_soc_card *card); int snd_soc_suspend(struct device *dev); int snd_soc_resume(struct device *dev); int snd_soc_poweroff(struct device *dev); int snd_soc_register_platform(struct device *dev, const struct snd_soc_platform_driver *platform_drv); void snd_soc_unregister_platform(struct device *dev); int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform, const struct snd_soc_platform_driver *platform_drv); void snd_soc_remove_platform(struct snd_soc_platform *platform); struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev); int snd_soc_register_codec(struct device *dev, const struct snd_soc_codec_driver *codec_drv, struct snd_soc_dai_driver *dai_drv, int num_dai); void snd_soc_unregister_codec(struct device *dev); int snd_soc_register_component(struct device *dev, const struct snd_soc_component_driver *cmpnt_drv, struct snd_soc_dai_driver *dai_drv, int num_dai); void snd_soc_unregister_component(struct device *dev); int snd_soc_codec_volatile_register(struct snd_soc_codec *codec, unsigned int reg); int snd_soc_codec_readable_register(struct snd_soc_codec *codec, unsigned int reg); int snd_soc_codec_writable_register(struct snd_soc_codec *codec, unsigned 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); int snd_soc_default_volatile_register(struct snd_soc_codec *codec, unsigned int reg); int snd_soc_default_readable_register(struct snd_soc_codec *codec, unsigned int reg); int snd_soc_default_writable_register(struct snd_soc_codec *codec, unsigned int reg); int snd_soc_platform_read(struct snd_soc_platform *platform, unsigned int reg); int snd_soc_platform_write(struct snd_soc_platform *platform, unsigned int reg, unsigned int val); int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num); int soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num); struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card, const char *dai_link, int stream); struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card, const char *dai_link); #if IS_ENABLED(CONFIG_SND_EFFECTS_OFFLOAD) int snd_soc_register_effect(struct snd_soc_card *card, struct snd_effect_ops *ops); int snd_soc_unregister_effect(struct snd_soc_card *card); #else static inline int snd_soc_register_effect(struct snd_soc_card *card, struct snd_effect_ops *ops) { return -ENODEV; } static inline int snd_soc_unregister_effect(struct snd_soc_card *card) { return -ENODEV; } #endif /* Utility functions to get clock rates from various things */ int snd_soc_calc_frame_size(int sample_size, int channels, int tdm_slots); int snd_soc_params_to_frame_size(struct snd_pcm_hw_params *params); int snd_soc_calc_bclk(int fs, int sample_size, int channels, int tdm_slots); int snd_soc_params_to_bclk(struct snd_pcm_hw_params *parms); /* set runtime hw params */ int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, const struct snd_pcm_hardware *hw); int snd_soc_platform_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_platform *platform); /* Jack reporting */ int snd_soc_jack_new(struct snd_soc_codec *codec, const char *id, int type, struct snd_soc_jack *jack); void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask); int snd_soc_jack_add_pins(struct snd_soc_jack *jack, int count, struct snd_soc_jack_pin *pins); void snd_soc_jack_notifier_register(struct snd_soc_jack *jack, struct notifier_block *nb); void snd_soc_jack_notifier_unregister(struct snd_soc_jack *jack, struct notifier_block *nb); int snd_soc_jack_add_zones(struct snd_soc_jack *jack, int count, struct snd_soc_jack_zone *zones); int snd_soc_jack_get_type(struct snd_soc_jack *jack, int micbias_voltage); #ifdef CONFIG_GPIOLIB int snd_soc_jack_add_gpios(struct snd_soc_jack *jack, int count, struct snd_soc_jack_gpio *gpios); void snd_soc_jack_free_gpios(struct snd_soc_jack *jack, int count, struct snd_soc_jack_gpio *gpios); #endif /* codec register bit access */ int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg, unsigned int mask, unsigned int value); int snd_soc_update_bits_locked(struct snd_soc_codec *codec, unsigned short reg, unsigned int mask, unsigned int value); int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg, unsigned int mask, unsigned int value); int snd_soc_new_ac97_codec(struct snd_soc_codec *codec, struct snd_ac97_bus_ops *ops, int num); void snd_soc_free_ac97_codec(struct snd_soc_codec *codec); /* *Controls */ struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template, void *data, const char *long_name, const char *prefix); struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card, const char *name); int snd_soc_add_codec_controls(struct snd_soc_codec *codec, const struct snd_kcontrol_new *controls, int num_controls); int snd_soc_add_platform_controls(struct snd_soc_platform *platform, const struct snd_kcontrol_new *controls, int num_controls); int snd_soc_add_card_controls(struct snd_soc_card *soc_card, const struct snd_kcontrol_new *controls, int num_controls); int snd_soc_add_dai_controls(struct snd_soc_dai *dai, const struct snd_kcontrol_new *controls, int num_controls); int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); int snd_soc_info_enum_ext(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_info_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); int snd_soc_info_volsw_ext(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); #define snd_soc_info_bool_ext snd_ctl_boolean_mono_info int snd_soc_get_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_put_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); #define snd_soc_get_volsw_2r snd_soc_get_volsw #define snd_soc_put_volsw_2r snd_soc_put_volsw int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_limit_volume(struct snd_soc_codec *codec, const char *name, int max); int snd_soc_bytes_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); int snd_soc_bytes_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_bytes_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_get_strobe(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_put_strobe(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_info_bytes_ext(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *ucontrol); /** * struct snd_soc_reg_access - Describes whether a given register is * readable, writable or volatile. * * @reg: the register number * @read: whether this register is readable * @write: whether this register is writable * @vol: whether this register is volatile */ struct snd_soc_reg_access { u16 reg; u16 read; u16 write; u16 vol; }; /** * struct snd_soc_jack_pin - Describes a pin to update based on jack detection * * @pin: name of the pin to update * @mask: bits to check for in reported jack status * @invert: if non-zero then pin is enabled when status is not reported */ struct snd_soc_jack_pin { struct list_head list; const char *pin; int mask; bool invert; }; /** * struct snd_soc_jack_zone - Describes voltage zones of jack detection * * @min_mv: start voltage in mv * @max_mv: end voltage in mv * @jack_type: type of jack that is expected for this voltage * @debounce_time: debounce_time for jack, codec driver should wait for this * duration before reading the adc for voltages * @:list: list container */ struct snd_soc_jack_zone { unsigned int min_mv; unsigned int max_mv; unsigned int jack_type; unsigned int debounce_time; struct list_head list; }; /** * struct snd_soc_jack_gpio - Describes a gpio pin for jack detection * * @gpio: gpio number * @name: gpio name * @report: value to report when jack detected * @invert: report presence in low state * @irq_flag: Interrupt flags for GPIO-Irq line * @debouce_time: debouce time in ms * @wake: enable as wake source * @jack_status_check: callback function which overrides the detection * to provide more complex checks (eg, reading an * ADC). */ #ifdef CONFIG_GPIOLIB struct snd_soc_jack_gpio { unsigned int gpio; const char *name; int report; int invert; int debounce_time; bool wake; unsigned long irq_flags; struct snd_soc_jack *jack; struct delayed_work work; int (*jack_status_check)(void); }; #endif struct snd_soc_jack { struct mutex mutex; struct snd_jack *jack; struct snd_soc_codec *codec; struct list_head pins; int status; struct blocking_notifier_head notifier; struct list_head jack_zones; }; /* SoC PCM stream information */ struct snd_soc_pcm_stream { const char *stream_name; u64 formats; /* SNDRV_PCM_FMTBIT_* */ unsigned int rates; /* SNDRV_PCM_RATE_* */ unsigned int rate_min; /* min rate */ unsigned int rate_max; /* max rate */ unsigned int channels_min; /* min channels */ unsigned int channels_max; /* max channels */ unsigned int sig_bits; /* number of bits of content */ }; /* SoC audio ops */ struct snd_soc_ops { int (*startup)(struct snd_pcm_substream *); void (*shutdown)(struct snd_pcm_substream *); int (*hw_params)(struct snd_pcm_substream *, struct snd_pcm_hw_params *); int (*hw_free)(struct snd_pcm_substream *); int (*prepare)(struct snd_pcm_substream *); int (*trigger)(struct snd_pcm_substream *, int); }; struct snd_soc_compr_ops { int (*startup)(struct snd_compr_stream *); void (*shutdown)(struct snd_compr_stream *); int (*set_params)(struct snd_compr_stream *); int (*trigger)(struct snd_compr_stream *); }; /* SoC cache ops */ struct snd_soc_cache_ops { const char *name; 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; const char *name_prefix; int id; struct device *dev; const struct snd_soc_codec_driver *driver; struct mutex mutex; struct snd_soc_card *card; struct list_head list; struct list_head card_list; int num_dai; enum snd_soc_compress_type compress_type; size_t reg_size; /* reg_cache_size * reg_word_size */ int (*volatile_register)(struct snd_soc_codec *, unsigned int); int (*readable_register)(struct snd_soc_codec *, unsigned int); int (*writable_register)(struct snd_soc_codec *, unsigned int); /* runtime */ struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */ unsigned int active; unsigned int cache_bypass:1; /* Suppress access to the cache */ unsigned int suspended:1; /* Codec is in suspend PM state */ unsigned int probed:1; /* Codec has been probed */ unsigned int ac97_registered:1; /* Codec has been AC97 registered */ unsigned int ac97_created:1; /* Codec has been created by SoC */ unsigned int sysfs_registered:1; /* codec has been sysfs registered */ unsigned int cache_init:1; /* codec cache has been initialized */ unsigned int using_regmap:1; /* using regmap access */ u32 cache_only; /* Suppress writes to hardware */ u32 cache_sync; /* Cache needs to be synced to hardware */ /* codec IO */ void *control_data; /* codec control (i2c/3wire) data */ enum snd_soc_control_type control_type; hw_write_t hw_write; unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int); unsigned int (*read)(struct snd_soc_codec *, unsigned int); int (*write)(struct snd_soc_codec *, unsigned int, unsigned int); int (*bulk_write_raw)(struct snd_soc_codec *, unsigned int, const void *, size_t); void *reg_cache; const void *reg_def_copy; const struct snd_soc_cache_ops *cache_ops; struct mutex cache_rw_mutex; int val_bytes; /* dapm */ struct snd_soc_dapm_context dapm; unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */ /* dynamic mixer and enum controls */ struct list_head dmixers; struct list_head denums; struct list_head dbytes; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_codec_root; struct dentry *debugfs_reg; struct dentry *debugfs_dapm; #endif }; /* codec driver */ struct snd_soc_codec_driver { /* driver ops */ int (*probe)(struct snd_soc_codec *); int (*remove)(struct snd_soc_codec *); int (*suspend)(struct snd_soc_codec *); int (*resume)(struct snd_soc_codec *); /* Default control and setup, added after probe() is run */ const struct snd_kcontrol_new *controls; int num_controls; const struct snd_soc_dapm_widget *dapm_widgets; int num_dapm_widgets; const struct snd_soc_dapm_route *dapm_routes; int num_dapm_routes; /* codec wide operations */ int (*set_sysclk)(struct snd_soc_codec *codec, int clk_id, int source, unsigned int freq, int dir); int (*set_pll)(struct snd_soc_codec *codec, int pll_id, int source, unsigned int freq_in, unsigned int freq_out); /* codec IO */ unsigned int (*read)(struct snd_soc_codec *, unsigned int); int (*write)(struct snd_soc_codec *, unsigned int, unsigned int); int (*display_register)(struct snd_soc_codec *, char *, size_t, unsigned int); int (*volatile_register)(struct snd_soc_codec *, unsigned int); int (*readable_register)(struct snd_soc_codec *, unsigned int); int (*writable_register)(struct snd_soc_codec *, unsigned int); unsigned int reg_cache_size; short reg_cache_step; short reg_word_size; const void *reg_cache_default; short reg_access_size; const struct snd_soc_reg_access *reg_access_default; enum snd_soc_compress_type compress_type; /* codec bias level */ int (*set_bias_level)(struct snd_soc_codec *, enum snd_soc_bias_level level); bool idle_bias_off; void (*seq_notifier)(struct snd_soc_dapm_context *, enum snd_soc_dapm_type, int); /* codec stream completion event */ int (*stream_event)(struct snd_soc_dapm_context *dapm, int event); bool ignore_pmdown_time; /* Doesn't benefit from pmdown delay */ /* probe ordering - for components with runtime dependencies */ int probe_order; int remove_order; }; /* SoC platform interface */ struct snd_soc_platform_driver { int (*probe)(struct snd_soc_platform *); int (*remove)(struct snd_soc_platform *); int (*suspend)(struct snd_soc_dai *dai); int (*resume)(struct snd_soc_dai *dai); /* pcm creation and destruction */ int (*pcm_new)(struct snd_soc_pcm_runtime *); void (*pcm_free)(struct snd_pcm *); /* Default control and setup, added after probe() is run */ const struct snd_kcontrol_new *controls; int num_controls; const struct snd_soc_dapm_widget *dapm_widgets; int num_dapm_widgets; const struct snd_soc_dapm_route *dapm_routes; int num_dapm_routes; /* * For platform caused delay reporting. * Optional. */ snd_pcm_sframes_t (*delay)(struct snd_pcm_substream *, struct snd_soc_dai *); /* platform stream pcm ops */ const struct snd_pcm_ops *ops; /* platform stream compress ops */ const struct snd_compr_ops *compr_ops; /* platform stream completion event */ int (*stream_event)(struct snd_soc_dapm_context *dapm, int event); /* probe ordering - for components with runtime dependencies */ int probe_order; int remove_order; /* platform IO - used for platform DAPM */ unsigned int (*read)(struct snd_soc_platform *, unsigned int); int (*write)(struct snd_soc_platform *, unsigned int, unsigned int); int (*bespoke_trigger)(struct snd_pcm_substream *, int); }; struct snd_soc_platform { const char *name; int id; struct device *dev; const struct snd_soc_platform_driver *driver; struct mutex mutex; unsigned int suspended:1; /* platform is suspended */ unsigned int probed:1; struct snd_soc_card *card; struct list_head list; struct list_head card_list; /* dynamic mixer and enum controls */ struct list_head dmixers; struct list_head denums; struct list_head dbytes; struct snd_soc_dapm_context dapm; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_platform_root; struct dentry *debugfs_dapm; #endif }; struct snd_soc_component_driver { const char *name; }; struct snd_soc_component { const char *name; int id; int num_dai; struct device *dev; struct list_head list; const struct snd_soc_component_driver *driver; }; struct snd_soc_dai_link { /* config - must be set by machine driver */ const char *name; /* Codec name */ const char *stream_name; /* Stream name */ /* * You MAY specify the link's CPU-side device, either by device name, * or by DT/OF node, but not both. If this information is omitted, * the CPU-side DAI is matched using .cpu_dai_name only, which hence * must be globally unique. These fields are currently typically used * only for codec to codec links, or systems using device tree. */ const char *cpu_name; const struct device_node *cpu_of_node; /* * You MAY specify the DAI name of the CPU DAI. If this information is * omitted, the CPU-side DAI is matched using .cpu_name/.cpu_of_node * only, which only works well when that device exposes a single DAI. */ const char *cpu_dai_name; /* * You MUST specify the link's codec, either by device name, or by * DT/OF node, but not both. */ const char *codec_name; const struct device_node *codec_of_node; /* You MUST specify the DAI name within the codec */ const char *codec_dai_name; /* * 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 * do not need a platform. */ const char *platform_name; const struct device_node *platform_of_node; int be_id; /* optional ID for machine driver BE identification */ const struct snd_soc_pcm_stream *params; bool dsp_loopback; unsigned int dai_fmt; /* format to set on init */ enum snd_soc_dpcm_trigger trigger[2]; /* trigger type for DPCM */ /* Keep DAI active over suspend */ unsigned int ignore_suspend:1; /* Symmetry requirements */ unsigned int symmetric_rates:1; /* Do not create a PCM for this DAI link (Backend link) */ unsigned int no_pcm:1; /* This DAI link can route to other DAI links at runtime (Frontend)*/ unsigned int dynamic:1; /* pmdown_time is ignored at stop */ unsigned int ignore_pmdown_time:1; /* codec/machine specific init - e.g. add machine controls */ int (*init)(struct snd_soc_pcm_runtime *rtd); /* optional hw_params re-writing for BE and FE sync */ int (*be_hw_params_fixup)(struct snd_soc_pcm_runtime *rtd, struct snd_pcm_hw_params *params); /* BE fixup method for CODEC<->CODEC dailink */ int (*be_fixup)(struct snd_soc_dai_link *dai_link, struct snd_soc_dai *dai); /* machine stream operations */ const struct snd_soc_ops *ops; const struct snd_soc_compr_ops *compr_ops; /*no of substreams */ unsigned int playback_count; unsigned int capture_count; }; struct snd_soc_codec_conf { const char *dev_name; /* * optional map of kcontrol, widget and path name prefixes that are * associated per device */ const char *name_prefix; /* * set this to the desired compression type if you want to * override the one supplied in codec->driver->compress_type */ enum snd_soc_compress_type compress_type; }; struct snd_soc_aux_dev { const char *name; /* Codec name */ const char *codec_name; /* for multi-codec */ /* codec/machine specific init - e.g. add machine controls */ int (*init)(struct snd_soc_dapm_context *dapm); }; /* SoC card */ struct snd_soc_card { const char *name; const char *long_name; const char *driver_name; struct device *dev; struct snd_card *snd_card; struct module *owner; struct list_head list; struct mutex mutex; struct mutex dapm_mutex; bool instantiated; int (*probe)(struct snd_soc_card *card); int (*late_probe)(struct snd_soc_card *card); int (*remove)(struct snd_soc_card *card); /* the pre and post PM functions are used to do any PM work before and * after the codec and DAI's do any PM work. */ int (*suspend_pre)(struct snd_soc_card *card); int (*suspend_post)(struct snd_soc_card *card); int (*resume_pre)(struct snd_soc_card *card); int (*resume_post)(struct snd_soc_card *card); /* callbacks */ int (*set_bias_level)(struct snd_soc_card *, struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level); int (*set_bias_level_post)(struct snd_soc_card *, struct snd_soc_dapm_context *dapm, enum snd_soc_bias_level level); long pmdown_time; /* CPU <--> Codec DAI links */ struct snd_soc_dai_link *dai_link; int num_links; struct snd_soc_pcm_runtime *rtd; int num_rtd; /* optional codec specific configuration */ struct snd_soc_codec_conf *codec_conf; int num_configs; /* * optional auxiliary devices such as amplifiers or codecs with DAI * link unused */ struct snd_soc_aux_dev *aux_dev; int num_aux_devs; struct snd_soc_pcm_runtime *rtd_aux; int num_aux_rtd; const struct snd_kcontrol_new *controls; int num_controls; /* * Card-specific routes and widgets. */ const struct snd_soc_dapm_widget *dapm_widgets; int num_dapm_widgets; const struct snd_soc_dapm_route *dapm_routes; int num_dapm_routes; bool fully_routed; struct work_struct deferred_resume_work; /* lists of probed devices belonging to this card */ struct list_head codec_dev_list; struct list_head platform_dev_list; struct list_head dai_dev_list; struct list_head widgets; struct list_head paths; struct list_head dapm_list; struct list_head dapm_dirty; /* dynamic mixer and enum controls */ struct list_head dmixers; struct list_head denums; struct list_head dbytes; /* Generic DAPM context for the card */ struct snd_soc_dapm_context dapm; struct snd_soc_dapm_stats dapm_stats; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_card_root; struct dentry *debugfs_pop_time; #endif u32 pop_time; void *drvdata; }; /* SoC machine DAI configuration, glues a codec and cpu DAI together */ struct snd_soc_pcm_runtime { struct device *dev; struct snd_soc_card *card; struct snd_soc_dai_link *dai_link; struct mutex pcm_mutex; enum snd_soc_pcm_subclass pcm_subclass; struct snd_pcm_ops ops; unsigned int dev_registered:1; /* Dynamic PCM BE runtime data */ struct snd_soc_dpcm_runtime dpcm[2]; int fe_compr; long pmdown_time; unsigned char pop_wait:1; /* runtime devices */ struct snd_pcm *pcm; struct snd_compr *compr; struct snd_soc_codec *codec; struct snd_soc_platform *platform; struct snd_soc_dai *codec_dai; struct snd_soc_dai *cpu_dai; struct delayed_work delayed_work; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_dpcm_root; struct dentry *debugfs_dpcm_state; #endif }; /* mixer control */ struct soc_mixer_control { int min, max, platform_max; unsigned int reg, rreg, shift, rshift, invert; /* dynamic controls */ struct list_head list; struct snd_kcontrol *dcontrol; int index; unsigned int pvt_data_len; char *pvt_data; }; struct soc_bytes { int base; int num_regs; u32 mask; }; /* multi register control */ struct soc_mreg_control { long min, max; unsigned int regbase, regcount, nbits, invert; }; struct soc_bytes_ext { int max; /* dynamic controls */ struct list_head list; struct snd_kcontrol *dcontrol; int index; unsigned int pvt_data_len; char *pvt_data; }; /* enumerated kcontrol */ struct soc_enum { unsigned short reg; unsigned short reg2; unsigned char shift_l; unsigned char shift_r; unsigned int max; unsigned int mask; const char * const *texts; const unsigned int *values; /* dynamic enum controls */ char **dtexts; unsigned int *dvalues; struct list_head list; struct snd_kcontrol *dcontrol; int index; unsigned int pvt_data_len; char *pvt_data; void *dapm; }; /* codec IO */ unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg); unsigned int snd_soc_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int val); unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec, unsigned int reg, const void *data, size_t len); /* device driver data */ static inline void snd_soc_card_set_drvdata(struct snd_soc_card *card, void *data) { card->drvdata = data; } static inline void *snd_soc_card_get_drvdata(struct snd_soc_card *card) { return card->drvdata; } static inline void snd_soc_codec_set_drvdata(struct snd_soc_codec *codec, void *data) { dev_set_drvdata(codec->dev, data); } static inline void *snd_soc_codec_get_drvdata(struct snd_soc_codec *codec) { return dev_get_drvdata(codec->dev); } static inline void snd_soc_platform_set_drvdata(struct snd_soc_platform *platform, void *data) { dev_set_drvdata(platform->dev, data); } static inline void *snd_soc_platform_get_drvdata(struct snd_soc_platform *platform) { return dev_get_drvdata(platform->dev); } static inline void snd_soc_pcm_set_drvdata(struct snd_soc_pcm_runtime *rtd, void *data) { dev_set_drvdata(rtd->dev, data); } static inline void *snd_soc_pcm_get_drvdata(struct snd_soc_pcm_runtime *rtd) { return dev_get_drvdata(rtd->dev); } static inline void snd_soc_initialize_card_lists(struct snd_soc_card *card) { INIT_LIST_HEAD(&card->dai_dev_list); INIT_LIST_HEAD(&card->codec_dev_list); INIT_LIST_HEAD(&card->platform_dev_list); INIT_LIST_HEAD(&card->widgets); INIT_LIST_HEAD(&card->paths); INIT_LIST_HEAD(&card->dapm_list); } static inline bool snd_soc_volsw_is_stereo(struct soc_mixer_control *mc) { if (mc->reg == mc->rreg && mc->shift == mc->rshift) return 0; /* * mc->reg == mc->rreg && mc->shift != mc->rshift, or * mc->reg != mc->rreg means that the control is * stereo (bits in one register or in two registers) */ return 1; } int snd_soc_util_init(void); void snd_soc_util_exit(void); int snd_soc_of_parse_card_name(struct snd_soc_card *card, const char *propname); int snd_soc_of_parse_audio_routing(struct snd_soc_card *card, const char *propname); unsigned int snd_soc_of_parse_daifmt(struct device_node *np, const char *prefix); #include #ifdef CONFIG_DEBUG_FS extern struct dentry *snd_soc_debugfs_root; #endif extern const struct dev_pm_ops snd_soc_pm_ops; #endif