| /* |
| * 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 <linux/platform_device.h> |
| #include <linux/types.h> |
| #include <linux/workqueue.h> |
| #include <linux/interrupt.h> |
| #include <linux/kernel.h> |
| #include <sound/core.h> |
| #include <sound/pcm.h> |
| #include <sound/control.h> |
| #include <sound/ac97_codec.h> |
| |
| /* |
| * 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_DOUBLE_EXT_TLV(xname, xreg, shift_left, shift_right, 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 = (unsigned long)&(struct soc_mixer_control) \ |
| {.reg = xreg, .shift = shift_left, .rshift = shift_right, \ |
| .max = xmax, .invert = xinvert} } |
| #define SOC_DOUBLE_R_EXT_TLV(xname, reg_left, reg_right, 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_2r, \ |
| .get = xhandler_get, .put = xhandler_put, \ |
| .private_value = (unsigned long)&(struct soc_mixer_control) \ |
| {.reg = reg_left, .rreg = reg_right, .shift = xshift, \ |
| .max = xmax, .invert = 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); |
| |
| 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); |
| |
| /* 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); |
| |
| /* 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_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); |
| |
| /* 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; |
| |
| int (*jack_status_check)(void); |
| }; |
| #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); |
| int (*readable_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_codec_root; |
| struct dentry *debugfs_reg; |
| struct dentry *debugfs_pop_time; |
| struct dentry *debugfs_dapm; |
| #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 <sound/soc-dai.h> |
| |
| #endif |