/* * 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 /* * Convenience kcontrol builders */ #define SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) \ ((unsigned long)&(struct soc_mixer_control) \ {.reg = xreg, .shift = xshift, .rshift = xshift, .max = xmax, \ .invert = xinvert}) #define SOC_SINGLE_VALUE_EXT(xreg, xmax, xinvert) \ ((unsigned long)&(struct soc_mixer_control) \ {.reg = xreg, .max = xmax, .invert = xinvert}) #define SOC_SINGLE(xname, reg, shift, max, invert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\ .put = snd_soc_put_volsw, \ .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } #define SOC_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ SNDRV_CTL_ELEM_ACCESS_READWRITE,\ .tlv.p = (tlv_array), \ .info = snd_soc_info_volsw, .get = snd_soc_get_volsw,\ .put = snd_soc_put_volsw, \ .private_value = SOC_SINGLE_VALUE(reg, shift, max, invert) } #define SOC_DOUBLE(xname, xreg, shift_left, shift_right, xmax, xinvert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ .put = snd_soc_put_volsw, \ .private_value = (unsigned long)&(struct soc_mixer_control) \ {.reg = xreg, .shift = shift_left, .rshift = shift_right, \ .max = xmax, .invert = xinvert} } #define SOC_DOUBLE_R(xname, reg_left, reg_right, xshift, xmax, xinvert) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ .info = snd_soc_info_volsw_2r, \ .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \ .private_value = (unsigned long)&(struct soc_mixer_control) \ {.reg = reg_left, .rreg = reg_right, .shift = xshift, \ .max = xmax, .invert = xinvert} } #define SOC_DOUBLE_TLV(xname, xreg, shift_left, shift_right, xmax, xinvert, tlv_array) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ SNDRV_CTL_ELEM_ACCESS_READWRITE,\ .tlv.p = (tlv_array), \ .info = snd_soc_info_volsw, .get = snd_soc_get_volsw, \ .put = snd_soc_put_volsw, \ .private_value = (unsigned long)&(struct soc_mixer_control) \ {.reg = xreg, .shift = shift_left, .rshift = shift_right,\ .max = xmax, .invert = xinvert} } #define SOC_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, xinvert, tlv_array) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ SNDRV_CTL_ELEM_ACCESS_READWRITE,\ .tlv.p = (tlv_array), \ .info = snd_soc_info_volsw_2r, \ .get = snd_soc_get_volsw_2r, .put = snd_soc_put_volsw_2r, \ .private_value = (unsigned long)&(struct soc_mixer_control) \ {.reg = reg_left, .rreg = reg_right, .shift = xshift, \ .max = xmax, .invert = xinvert} } #define SOC_DOUBLE_S8_TLV(xname, xreg, xmin, xmax, tlv_array) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \ .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \ SNDRV_CTL_ELEM_ACCESS_READWRITE, \ .tlv.p = (tlv_array), \ .info = snd_soc_info_volsw_s8, .get = snd_soc_get_volsw_s8, \ .put = snd_soc_put_volsw_s8, \ .private_value = (unsigned long)&(struct soc_mixer_control) \ {.reg = xreg, .min = xmin, .max = xmax} } #define SOC_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmax, xtexts) \ { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \ .max = xmax, .texts = xtexts } #define SOC_ENUM_SINGLE(xreg, xshift, xmax, xtexts) \ SOC_ENUM_DOUBLE(xreg, xshift, xshift, xmax, xtexts) #define SOC_ENUM_SINGLE_EXT(xmax, xtexts) \ { .max = xmax, .texts = xtexts } #define SOC_VALUE_ENUM_DOUBLE(xreg, xshift_l, xshift_r, xmask, xmax, xtexts, xvalues) \ { .reg = xreg, .shift_l = xshift_l, .shift_r = xshift_r, \ .mask = xmask, .max = xmax, .texts = xtexts, .values = xvalues} #define SOC_VALUE_ENUM_SINGLE(xreg, xshift, xmask, xmax, xtexts, xvalues) \ SOC_VALUE_ENUM_DOUBLE(xreg, xshift, xshift, xmask, xmax, xtexts, xvalues) #define SOC_ENUM(xname, xenum) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\ .info = snd_soc_info_enum_double, \ .get = snd_soc_get_enum_double, .put = snd_soc_put_enum_double, \ .private_value = (unsigned long)&xenum } #define SOC_VALUE_ENUM(xname, xenum) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\ .info = snd_soc_info_enum_double, \ .get = snd_soc_get_value_enum_double, \ .put = snd_soc_put_value_enum_double, \ .private_value = (unsigned long)&xenum } #define SOC_SINGLE_EXT(xname, xreg, xshift, xmax, xinvert,\ xhandler_get, xhandler_put) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = snd_soc_info_volsw, \ .get = xhandler_get, .put = xhandler_put, \ .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) } #define SOC_DOUBLE_EXT(xname, xreg, shift_left, shift_right, xmax, xinvert,\ xhandler_get, xhandler_put) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\ .info = snd_soc_info_volsw, \ .get = xhandler_get, .put = xhandler_put, \ .private_value = (unsigned long)&(struct soc_mixer_control) \ {.reg = xreg, .shift = shift_left, .rshift = shift_right, \ .max = xmax, .invert = xinvert} } #define SOC_SINGLE_EXT_TLV(xname, xreg, xshift, xmax, xinvert,\ xhandler_get, xhandler_put, tlv_array) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\ SNDRV_CTL_ELEM_ACCESS_READWRITE,\ .tlv.p = (tlv_array), \ .info = snd_soc_info_volsw, \ .get = xhandler_get, .put = xhandler_put, \ .private_value = SOC_SINGLE_VALUE(xreg, xshift, xmax, xinvert) } #define SOC_SINGLE_BOOL_EXT(xname, xdata, xhandler_get, xhandler_put) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = snd_soc_info_bool_ext, \ .get = xhandler_get, .put = xhandler_put, \ .private_value = xdata } #define SOC_ENUM_EXT(xname, xenum, xhandler_get, xhandler_put) \ { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ .info = snd_soc_info_enum_ext, \ .get = xhandler_get, .put = xhandler_put, \ .private_value = (unsigned long)&xenum } /* * 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_ON, SND_SOC_BIAS_PREPARE, SND_SOC_BIAS_STANDBY, SND_SOC_BIAS_OFF, }; struct snd_jack; struct snd_soc_card; struct snd_soc_device; struct snd_soc_pcm_stream; struct snd_soc_ops; struct snd_soc_dai_mode; struct snd_soc_pcm_runtime; struct snd_soc_dai; struct snd_soc_platform; struct snd_soc_codec; struct soc_enum; struct snd_soc_ac97_ops; struct snd_soc_jack; struct snd_soc_jack_pin; #ifdef CONFIG_GPIOLIB struct snd_soc_jack_gpio; #endif typedef int (*hw_write_t)(void *,const char* ,int); typedef int (*hw_read_t)(void *,char* ,int); extern struct snd_ac97_bus_ops soc_ac97_ops; enum snd_soc_control_type { SND_SOC_CUSTOM, SND_SOC_I2C, SND_SOC_SPI, }; int snd_soc_register_platform(struct snd_soc_platform *platform); void snd_soc_unregister_platform(struct snd_soc_platform *platform); int snd_soc_register_codec(struct snd_soc_codec *codec); void snd_soc_unregister_codec(struct snd_soc_codec *codec); 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); #ifdef CONFIG_PM int snd_soc_suspend_device(struct device *dev); int snd_soc_resume_device(struct device *dev); #endif /* pcm <-> DAI connect */ void snd_soc_free_pcms(struct snd_soc_device *socdev); int snd_soc_new_pcms(struct snd_soc_device *socdev, int idx, const char *xid); int snd_soc_init_card(struct snd_soc_device *socdev); /* set runtime hw params */ int snd_soc_set_runtime_hwparams(struct snd_pcm_substream *substream, const struct snd_pcm_hardware *hw); /* Jack reporting */ int snd_soc_jack_new(struct snd_soc_card *card, 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); #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_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, char *long_name); int snd_soc_add_controls(struct snd_soc_codec *codec, 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); int snd_soc_info_volsw_2r(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo); int snd_soc_get_volsw_2r(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol); int snd_soc_put_volsw_2r(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); /** * 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_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 * @debouce_time: debouce time in ms */ #ifdef CONFIG_GPIOLIB struct snd_soc_jack_gpio { unsigned int gpio; const char *name; int report; int invert; int debounce_time; struct snd_soc_jack *jack; struct work_struct work; }; #endif struct snd_soc_jack { struct snd_jack *jack; struct snd_soc_card *card; struct list_head pins; int status; }; /* SoC PCM stream information */ struct snd_soc_pcm_stream { 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 active:1; /* stream is in use */ }; /* 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); }; /* SoC Audio Codec */ struct snd_soc_codec { char *name; struct module *owner; struct mutex mutex; struct device *dev; struct snd_soc_device *socdev; struct list_head list; /* callbacks */ int (*set_bias_level)(struct snd_soc_codec *, enum snd_soc_bias_level level); /* runtime */ struct snd_card *card; struct snd_ac97 *ac97; /* for ad-hoc ac97 devices */ unsigned int active; unsigned int pcm_devs; void *private_data; /* codec IO */ void *control_data; /* codec control (i2c/3wire) data */ 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)(unsigned int); hw_write_t hw_write; unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int); void *reg_cache; short reg_cache_size; short reg_cache_step; /* dapm */ u32 pop_time; struct list_head dapm_widgets; struct list_head dapm_paths; enum snd_soc_bias_level bias_level; enum snd_soc_bias_level suspend_bias_level; struct delayed_work delayed_work; /* codec DAI's */ struct snd_soc_dai *dai; unsigned int num_dai; #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_reg; struct dentry *debugfs_pop_time; #endif }; /* codec device */ struct snd_soc_codec_device { int (*probe)(struct platform_device *pdev); int (*remove)(struct platform_device *pdev); int (*suspend)(struct platform_device *pdev, pm_message_t state); int (*resume)(struct platform_device *pdev); }; /* SoC platform interface */ struct snd_soc_platform { char *name; struct list_head list; int (*probe)(struct platform_device *pdev); int (*remove)(struct platform_device *pdev); int (*suspend)(struct snd_soc_dai *dai); int (*resume)(struct snd_soc_dai *dai); /* pcm creation and destruction */ int (*pcm_new)(struct snd_card *, struct snd_soc_dai *, struct snd_pcm *); void (*pcm_free)(struct snd_pcm *); /* platform stream ops */ struct snd_pcm_ops *pcm_ops; }; /* SoC machine DAI configuration, glues a codec and cpu DAI together */ struct snd_soc_dai_link { char *name; /* Codec name */ char *stream_name; /* Stream name */ /* DAI */ struct snd_soc_dai *codec_dai; struct snd_soc_dai *cpu_dai; /* machine stream operations */ struct snd_soc_ops *ops; /* codec/machine specific init - e.g. add machine controls */ int (*init)(struct snd_soc_codec *codec); /* Symmetry requirements */ unsigned int symmetric_rates:1; /* Symmetry data - only valid if symmetry is being enforced */ unsigned int rate; /* DAI pcm */ struct snd_pcm *pcm; }; /* SoC card */ struct snd_soc_card { char *name; struct device *dev; struct list_head list; int instantiated; int (*probe)(struct platform_device *pdev); int (*remove)(struct platform_device *pdev); /* 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 platform_device *pdev, pm_message_t state); int (*suspend_post)(struct platform_device *pdev, pm_message_t state); int (*resume_pre)(struct platform_device *pdev); int (*resume_post)(struct platform_device *pdev); /* callbacks */ int (*set_bias_level)(struct snd_soc_card *, enum snd_soc_bias_level level); /* CPU <--> Codec DAI links */ struct snd_soc_dai_link *dai_link; int num_links; struct snd_soc_device *socdev; struct snd_soc_codec *codec; struct snd_soc_platform *platform; struct delayed_work delayed_work; struct work_struct deferred_resume_work; }; /* SoC Device - the audio subsystem */ struct snd_soc_device { struct device *dev; struct snd_soc_card *card; struct snd_soc_codec_device *codec_dev; void *codec_data; }; /* runtime channel data */ struct snd_soc_pcm_runtime { struct snd_soc_dai_link *dai; struct snd_soc_device *socdev; }; /* mixer control */ struct soc_mixer_control { int min, max; unsigned int reg, rreg, shift, rshift, invert; }; /* 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 **texts; const unsigned int *values; void *dapm; }; /* codec IO */ static inline unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg) { return codec->read(codec, reg); } static inline unsigned int snd_soc_write(struct snd_soc_codec *codec, unsigned int reg, unsigned int val) { return codec->write(codec, reg, val); } #include #endif