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hosted: Pull tinyalsa out of ibasso tree so other targets can use it

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Change-Id: I85e31a0d0993d3494568abbc05ff9b114d493d75
This commit is contained in:
Solomon Peachy 2025-11-28 08:10:57 -05:00
parent 26d22a64c9
commit 9020360f66
6 changed files with 12 additions and 4 deletions
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820
firmware/target/hosted/tinyalsa/include/sound/asound.h Normal file
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/****************************************************************************
****************************************************************************
***
*** This header was automatically generated from a Linux kernel header
*** of the same name, to make information necessary for userspace to
*** call into the kernel available to libc. It contains only constants,
*** structures, and macros generated from the original header, and thus,
*** contains no copyrightable information.
***
****************************************************************************
****************************************************************************/
#ifndef __SOUND_ASOUND_H
#define __SOUND_ASOUND_H
#include <linux/types.h>
#define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor))
#define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff)
#define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff)
#define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff)
#define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) (SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
struct snd_aes_iec958 {
unsigned char status[24];
unsigned char subcode[147];
unsigned char pad;
unsigned char dig_subframe[4];
};
#define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1)
enum {
SNDRV_HWDEP_IFACE_OPL2 = 0,
SNDRV_HWDEP_IFACE_OPL3,
SNDRV_HWDEP_IFACE_OPL4,
SNDRV_HWDEP_IFACE_SB16CSP,
SNDRV_HWDEP_IFACE_EMU10K1,
SNDRV_HWDEP_IFACE_YSS225,
SNDRV_HWDEP_IFACE_ICS2115,
SNDRV_HWDEP_IFACE_SSCAPE,
SNDRV_HWDEP_IFACE_VX,
SNDRV_HWDEP_IFACE_MIXART,
SNDRV_HWDEP_IFACE_USX2Y,
SNDRV_HWDEP_IFACE_EMUX_WAVETABLE,
SNDRV_HWDEP_IFACE_BLUETOOTH,
SNDRV_HWDEP_IFACE_USX2Y_PCM,
SNDRV_HWDEP_IFACE_PCXHR,
SNDRV_HWDEP_IFACE_SB_RC,
SNDRV_HWDEP_IFACE_HDA,
SNDRV_HWDEP_IFACE_USB_STREAM,
SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_USB_STREAM
};
struct snd_hwdep_info {
unsigned int device;
int card;
unsigned char id[64];
unsigned char name[80];
int iface;
unsigned char reserved[64];
};
struct snd_hwdep_dsp_status {
unsigned int version;
unsigned char id[32];
unsigned int num_dsps;
unsigned int dsp_loaded;
unsigned int chip_ready;
unsigned char reserved[16];
};
struct snd_hwdep_dsp_image {
unsigned int index;
unsigned char name[64];
unsigned char __user *image;
size_t length;
unsigned long driver_data;
};
#define SNDRV_HWDEP_IOCTL_PVERSION _IOR ('H', 0x00, int)
#define SNDRV_HWDEP_IOCTL_INFO _IOR ('H', 0x01, struct snd_hwdep_info)
#define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status)
#define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image)
#define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 10)
typedef unsigned long snd_pcm_uframes_t;
typedef signed long snd_pcm_sframes_t;
enum {
SNDRV_PCM_CLASS_GENERIC = 0,
SNDRV_PCM_CLASS_MULTI,
SNDRV_PCM_CLASS_MODEM,
SNDRV_PCM_CLASS_DIGITIZER,
SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
};
enum {
SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0,
SNDRV_PCM_SUBCLASS_MULTI_MIX,
SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
};
enum {
SNDRV_PCM_STREAM_PLAYBACK = 0,
SNDRV_PCM_STREAM_CAPTURE,
SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
};
typedef int __bitwise snd_pcm_access_t;
#define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0)
#define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1)
#define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2)
#define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3)
#define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4)
#define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
typedef int __bitwise snd_pcm_format_t;
#define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0)
#define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1)
#define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
#define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
#define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
#define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
#define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6)
#define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7)
#define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8)
#define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9)
#define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10)
#define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11)
#define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12)
#define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13)
#define SNDRV_PCM_FORMAT_FLOAT_LE ((__force snd_pcm_format_t) 14)
#define SNDRV_PCM_FORMAT_FLOAT_BE ((__force snd_pcm_format_t) 15)
#define SNDRV_PCM_FORMAT_FLOAT64_LE ((__force snd_pcm_format_t) 16)
#define SNDRV_PCM_FORMAT_FLOAT64_BE ((__force snd_pcm_format_t) 17)
#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18)
#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19)
#define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20)
#define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21)
#define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22)
#define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23)
#define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24)
#define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31)
#define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32)
#define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33)
#define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34)
#define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35)
#define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36)
#define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37)
#define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38)
#define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39)
#define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40)
#define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41)
#define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42)
#define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43)
#define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44)
#define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45)
#define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46)
#define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47)
#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_G723_40_1B
#ifdef SNDRV_LITTLE_ENDIAN
#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE
#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE
#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE
#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE
#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE
#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
#endif
#ifdef SNDRV_BIG_ENDIAN
#define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
#define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE
#define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE
#define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE
#define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE
#define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE
#define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
#define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
#define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
#endif
typedef int __bitwise snd_pcm_subformat_t;
#define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0)
#define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD
#define SNDRV_PCM_INFO_MMAP 0x00000001
#define SNDRV_PCM_INFO_MMAP_VALID 0x00000002
#define SNDRV_PCM_INFO_DOUBLE 0x00000004
#define SNDRV_PCM_INFO_BATCH 0x00000010
#define SNDRV_PCM_INFO_INTERLEAVED 0x00000100
#define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200
#define SNDRV_PCM_INFO_COMPLEX 0x00000400
#define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000
#define SNDRV_PCM_INFO_OVERRANGE 0x00020000
#define SNDRV_PCM_INFO_RESUME 0x00040000
#define SNDRV_PCM_INFO_PAUSE 0x00080000
#define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000
#define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000
#define SNDRV_PCM_INFO_SYNC_START 0x00400000
#define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000
#define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000
typedef int __bitwise snd_pcm_state_t;
#define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0)
#define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1)
#define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2)
#define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3)
#define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4)
#define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5)
#define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6)
#define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7)
#define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8)
#define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED
enum {
SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
};
union snd_pcm_sync_id {
unsigned char id[16];
unsigned short id16[8];
unsigned int id32[4];
};
struct snd_pcm_info {
unsigned int device;
unsigned int subdevice;
int stream;
int card;
unsigned char id[64];
unsigned char name[80];
unsigned char subname[32];
int dev_class;
int dev_subclass;
unsigned int subdevices_count;
unsigned int subdevices_avail;
union snd_pcm_sync_id sync;
unsigned char reserved[64];
};
typedef int snd_pcm_hw_param_t;
#define SNDRV_PCM_HW_PARAM_ACCESS 0
#define SNDRV_PCM_HW_PARAM_FORMAT 1
#define SNDRV_PCM_HW_PARAM_SUBFORMAT 2
#define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
#define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
#define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8
#define SNDRV_PCM_HW_PARAM_FRAME_BITS 9
#define SNDRV_PCM_HW_PARAM_CHANNELS 10
#define SNDRV_PCM_HW_PARAM_RATE 11
#define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12
#define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13
#define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14
#define SNDRV_PCM_HW_PARAM_PERIODS 15
#define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16
#define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17
#define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18
#define SNDRV_PCM_HW_PARAM_TICK_TIME 19
#define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
#define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
#define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1<<0)
#define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1<<1)
#define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1<<2)
struct snd_interval {
unsigned int min, max;
unsigned int openmin:1,
openmax:1,
integer:1,
empty:1;
};
#define SNDRV_MASK_MAX 256
struct snd_mask {
__u32 bits[(SNDRV_MASK_MAX+31)/32];
};
struct snd_pcm_hw_params {
unsigned int flags;
struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
struct snd_mask mres[5];
struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
struct snd_interval ires[9];
unsigned int rmask;
unsigned int cmask;
unsigned int info;
unsigned int msbits;
unsigned int rate_num;
unsigned int rate_den;
snd_pcm_uframes_t fifo_size;
unsigned char reserved[64];
};
enum {
SNDRV_PCM_TSTAMP_NONE = 0,
SNDRV_PCM_TSTAMP_ENABLE,
SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
};
struct snd_pcm_sw_params {
int tstamp_mode;
unsigned int period_step;
unsigned int sleep_min;
snd_pcm_uframes_t avail_min;
snd_pcm_uframes_t xfer_align;
snd_pcm_uframes_t start_threshold;
snd_pcm_uframes_t stop_threshold;
snd_pcm_uframes_t silence_threshold;
snd_pcm_uframes_t silence_size;
snd_pcm_uframes_t boundary;
unsigned char reserved[64];
};
struct snd_pcm_channel_info {
unsigned int channel;
__kernel_off_t offset;
unsigned int first;
unsigned int step;
};
struct snd_pcm_status {
snd_pcm_state_t state;
struct timespec trigger_tstamp;
struct timespec tstamp;
snd_pcm_uframes_t appl_ptr;
snd_pcm_uframes_t hw_ptr;
snd_pcm_sframes_t delay;
snd_pcm_uframes_t avail;
snd_pcm_uframes_t avail_max;
snd_pcm_uframes_t overrange;
snd_pcm_state_t suspended_state;
unsigned char reserved[60];
};
struct snd_pcm_mmap_status {
snd_pcm_state_t state;
int pad1;
snd_pcm_uframes_t hw_ptr;
struct timespec tstamp;
snd_pcm_state_t suspended_state;
};
struct snd_pcm_mmap_control {
snd_pcm_uframes_t appl_ptr;
snd_pcm_uframes_t avail_min;
};
#define SNDRV_PCM_SYNC_PTR_HWSYNC (1<<0)
#define SNDRV_PCM_SYNC_PTR_APPL (1<<1)
#define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1<<2)
struct snd_pcm_sync_ptr {
unsigned int flags;
union {
struct snd_pcm_mmap_status status;
unsigned char reserved[64];
} s;
union {
struct snd_pcm_mmap_control control;
unsigned char reserved[64];
} c;
};
struct snd_xferi {
snd_pcm_sframes_t result;
void __user *buf;
snd_pcm_uframes_t frames;
};
struct snd_xfern {
snd_pcm_sframes_t result;
void __user * __user *bufs;
snd_pcm_uframes_t frames;
};
enum {
SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0,
SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,
SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,
};
#define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int)
#define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info)
#define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int)
#define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int)
#define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params)
#define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params)
#define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12)
#define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params)
#define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status)
#define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t)
#define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22)
#define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
#define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info)
#define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40)
#define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41)
#define SNDRV_PCM_IOCTL_START _IO('A', 0x42)
#define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43)
#define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44)
#define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int)
#define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t)
#define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47)
#define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48)
#define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t)
#define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi)
#define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi)
#define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern)
#define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern)
#define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int)
#define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61)
#define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0)
enum {
SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
SNDRV_RAWMIDI_STREAM_INPUT,
SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
};
#define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001
#define SNDRV_RAWMIDI_INFO_INPUT 0x00000002
#define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004
struct snd_rawmidi_info {
unsigned int device;
unsigned int subdevice;
int stream;
int card;
unsigned int flags;
unsigned char id[64];
unsigned char name[80];
unsigned char subname[32];
unsigned int subdevices_count;
unsigned int subdevices_avail;
unsigned char reserved[64];
};
struct snd_rawmidi_params {
int stream;
size_t buffer_size;
size_t avail_min;
unsigned int no_active_sensing: 1;
unsigned char reserved[16];
};
struct snd_rawmidi_status {
int stream;
struct timespec tstamp;
size_t avail;
size_t xruns;
unsigned char reserved[16];
};
#define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int)
#define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info)
#define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params)
#define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status)
#define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int)
#define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int)
#define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6)
enum {
SNDRV_TIMER_CLASS_NONE = -1,
SNDRV_TIMER_CLASS_SLAVE = 0,
SNDRV_TIMER_CLASS_GLOBAL,
SNDRV_TIMER_CLASS_CARD,
SNDRV_TIMER_CLASS_PCM,
SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
};
enum {
SNDRV_TIMER_SCLASS_NONE = 0,
SNDRV_TIMER_SCLASS_APPLICATION,
SNDRV_TIMER_SCLASS_SEQUENCER,
SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
};
#define SNDRV_TIMER_GLOBAL_SYSTEM 0
#define SNDRV_TIMER_GLOBAL_RTC 1
#define SNDRV_TIMER_GLOBAL_HPET 2
#define SNDRV_TIMER_GLOBAL_HRTIMER 3
#define SNDRV_TIMER_FLG_SLAVE (1<<0)
struct snd_timer_id {
int dev_class;
int dev_sclass;
int card;
int device;
int subdevice;
};
struct snd_timer_ginfo {
struct snd_timer_id tid;
unsigned int flags;
int card;
unsigned char id[64];
unsigned char name[80];
unsigned long reserved0;
unsigned long resolution;
unsigned long resolution_min;
unsigned long resolution_max;
unsigned int clients;
unsigned char reserved[32];
};
struct snd_timer_gparams {
struct snd_timer_id tid;
unsigned long period_num;
unsigned long period_den;
unsigned char reserved[32];
};
struct snd_timer_gstatus {
struct snd_timer_id tid;
unsigned long resolution;
unsigned long resolution_num;
unsigned long resolution_den;
unsigned char reserved[32];
};
struct snd_timer_select {
struct snd_timer_id id;
unsigned char reserved[32];
};
struct snd_timer_info {
unsigned int flags;
int card;
unsigned char id[64];
unsigned char name[80];
unsigned long reserved0;
unsigned long resolution;
unsigned char reserved[64];
};
#define SNDRV_TIMER_PSFLG_AUTO (1<<0)
#define SNDRV_TIMER_PSFLG_EXCLUSIVE (1<<1)
#define SNDRV_TIMER_PSFLG_EARLY_EVENT (1<<2)
struct snd_timer_params {
unsigned int flags;
unsigned int ticks;
unsigned int queue_size;
unsigned int reserved0;
unsigned int filter;
unsigned char reserved[60];
};
struct snd_timer_status {
struct timespec tstamp;
unsigned int resolution;
unsigned int lost;
unsigned int overrun;
unsigned int queue;
unsigned char reserved[64];
};
#define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int)
#define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id)
#define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int)
#define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo)
#define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams)
#define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus)
#define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select)
#define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info)
#define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params)
#define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status)
#define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0)
#define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1)
#define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2)
#define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3)
struct snd_timer_read {
unsigned int resolution;
unsigned int ticks;
};
enum {
SNDRV_TIMER_EVENT_RESOLUTION = 0,
SNDRV_TIMER_EVENT_TICK,
SNDRV_TIMER_EVENT_START,
SNDRV_TIMER_EVENT_STOP,
SNDRV_TIMER_EVENT_CONTINUE,
SNDRV_TIMER_EVENT_PAUSE,
SNDRV_TIMER_EVENT_EARLY,
SNDRV_TIMER_EVENT_SUSPEND,
SNDRV_TIMER_EVENT_RESUME,
SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
};
struct snd_timer_tread {
int event;
struct timespec tstamp;
unsigned int val;
};
#define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6)
struct snd_ctl_card_info {
int card;
int pad;
unsigned char id[16];
unsigned char driver[16];
unsigned char name[32];
unsigned char longname[80];
unsigned char reserved_[16];
unsigned char mixername[80];
unsigned char components[128];
};
typedef int __bitwise snd_ctl_elem_type_t;
#define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0)
#define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1)
#define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2)
#define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3)
#define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4)
#define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5)
#define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6)
#define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64
typedef int __bitwise snd_ctl_elem_iface_t;
#define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0)
#define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1)
#define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2)
#define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3)
#define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4)
#define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5)
#define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6)
#define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER
#define SNDRV_CTL_ELEM_ACCESS_READ (1<<0)
#define SNDRV_CTL_ELEM_ACCESS_WRITE (1<<1)
#define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
#define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1<<2)
#define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1<<3)
#define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1<<4)
#define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1<<5)
#define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
#define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1<<6)
#define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1<<8)
#define SNDRV_CTL_ELEM_ACCESS_LOCK (1<<9)
#define SNDRV_CTL_ELEM_ACCESS_OWNER (1<<10)
#define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1<<28)
#define SNDRV_CTL_ELEM_ACCESS_USER (1<<29)
#define SNDRV_CTL_POWER_D0 0x0000
#define SNDRV_CTL_POWER_D1 0x0100
#define SNDRV_CTL_POWER_D2 0x0200
#define SNDRV_CTL_POWER_D3 0x0300
#define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3|0x0000)
#define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3|0x0001)
struct snd_ctl_elem_id {
unsigned int numid;
snd_ctl_elem_iface_t iface;
unsigned int device;
unsigned int subdevice;
unsigned char name[44];
unsigned int index;
};
struct snd_ctl_elem_list {
unsigned int offset;
unsigned int space;
unsigned int used;
unsigned int count;
struct snd_ctl_elem_id __user *pids;
unsigned char reserved[50];
};
struct snd_ctl_elem_info {
struct snd_ctl_elem_id id;
snd_ctl_elem_type_t type;
unsigned int access;
unsigned int count;
__kernel_pid_t owner;
union {
struct {
long min;
long max;
long step;
} integer;
struct {
long long min;
long long max;
long long step;
} integer64;
struct {
unsigned int items;
unsigned int item;
char name[64];
} enumerated;
unsigned char reserved[128];
} value;
union {
unsigned short d[4];
unsigned short *d_ptr;
} dimen;
unsigned char reserved[64-4*sizeof(unsigned short)];
};
struct snd_ctl_elem_value {
struct snd_ctl_elem_id id;
unsigned int indirect: 1;
union {
union {
long value[128];
long *value_ptr;
} integer;
union {
long long value[64];
long long *value_ptr;
} integer64;
union {
unsigned int item[128];
unsigned int *item_ptr;
} enumerated;
union {
unsigned char data[512];
unsigned char *data_ptr;
} bytes;
struct snd_aes_iec958 iec958;
} value;
struct timespec tstamp;
unsigned char reserved[128-sizeof(struct timespec)];
};
struct snd_ctl_tlv {
unsigned int numid;
unsigned int length;
unsigned int tlv[0];
};
#define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int)
#define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info)
#define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list)
#define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info)
#define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value)
#define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value)
#define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id)
#define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id)
#define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
#define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info)
#define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info)
#define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id)
#define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv)
#define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv)
#define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv)
#define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
#define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info)
#define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
#define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info)
#define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
#define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
#define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info)
#define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
#define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int)
#define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int)
enum sndrv_ctl_event_type {
SNDRV_CTL_EVENT_ELEM = 0,
SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
};
#define SNDRV_CTL_EVENT_MASK_VALUE (1<<0)
#define SNDRV_CTL_EVENT_MASK_INFO (1<<1)
#define SNDRV_CTL_EVENT_MASK_ADD (1<<2)
#define SNDRV_CTL_EVENT_MASK_TLV (1<<3)
#define SNDRV_CTL_EVENT_MASK_REMOVE (~0U)
struct snd_ctl_event {
int type;
union {
struct {
unsigned int mask;
struct snd_ctl_elem_id id;
} elem;
unsigned char data8[60];
} data;
};
#define SNDRV_CTL_NAME_NONE ""
#define SNDRV_CTL_NAME_PLAYBACK "Playback "
#define SNDRV_CTL_NAME_CAPTURE "Capture "
#define SNDRV_CTL_NAME_IEC958_NONE ""
#define SNDRV_CTL_NAME_IEC958_SWITCH "Switch"
#define SNDRV_CTL_NAME_IEC958_VOLUME "Volume"
#define SNDRV_CTL_NAME_IEC958_DEFAULT "Default"
#define SNDRV_CTL_NAME_IEC958_MASK "Mask"
#define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask"
#define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
#define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
#define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
#endif

260
firmware/target/hosted/tinyalsa/include/tinyalsa/asoundlib.h Normal file
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@ -0,0 +1,260 @@
/* asoundlib.h
**
** Copyright 2011, The Android Open Source Project
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** * Neither the name of The Android Open Source Project nor the names of
** its contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY The Android Open Source Project ``AS IS'' AND
** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
** ARE DISCLAIMED. IN NO EVENT SHALL The Android Open Source Project BE LIABLE
** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
** DAMAGE.
*/
#ifndef ASOUNDLIB_H
#define ASOUNDLIB_H
#include <sys/time.h>
#include <stddef.h>
#if defined(__cplusplus)
extern "C" {
#endif
/*
* PCM API
*/
struct pcm;
#define PCM_OUT 0x00000000
#define PCM_IN 0x10000000
#define PCM_MMAP 0x00000001
#define PCM_NOIRQ 0x00000002
#define PCM_NORESTART 0x00000004 /* PCM_NORESTART - when set, calls to
* pcm_write for a playback stream will not
* attempt to restart the stream in the case
* of an underflow, but will return -EPIPE
* instead. After the first -EPIPE error, the
* stream is considered to be stopped, and a
* second call to pcm_write will attempt to
* restart the stream.
*/
#define PCM_MONOTONIC 0x00000008 /* see pcm_get_htimestamp */
/* PCM runtime states */
#define PCM_STATE_RUNNING 3
#define PCM_STATE_XRUN 4
#define PCM_STATE_DRAINING 5
#define PCM_STATE_SUSPENDED 7
#define PCM_STATE_DISCONNECTED 8
/* Bit formats */
enum pcm_format {
PCM_FORMAT_S16_LE = 0,
PCM_FORMAT_S32_LE,
PCM_FORMAT_S8,
PCM_FORMAT_S24_LE,
PCM_FORMAT_MAX,
};
/* Bitmask has 256 bits (32 bytes) in asound.h */
struct pcm_mask {
unsigned int bits[32 / sizeof(unsigned int)];
};
/* Configuration for a stream */
struct pcm_config {
unsigned int channels;
unsigned int rate;
unsigned int period_size;
unsigned int period_count;
enum pcm_format format;
/* Values to use for the ALSA start, stop and silence thresholds. Setting
* any one of these values to 0 will cause the default tinyalsa values to be
* used instead. Tinyalsa defaults are as follows.
*
* start_threshold : period_count * period_size
* stop_threshold : period_count * period_size
* silence_threshold : 0
*/
unsigned int start_threshold;
unsigned int stop_threshold;
unsigned int silence_threshold;
};
/* PCM parameters */
enum pcm_param
{
/* mask parameters */
PCM_PARAM_ACCESS,
PCM_PARAM_FORMAT,
PCM_PARAM_SUBFORMAT,
/* interval parameters */
PCM_PARAM_SAMPLE_BITS,
PCM_PARAM_FRAME_BITS,
PCM_PARAM_CHANNELS,
PCM_PARAM_RATE,
PCM_PARAM_PERIOD_TIME,
PCM_PARAM_PERIOD_SIZE,
PCM_PARAM_PERIOD_BYTES,
PCM_PARAM_PERIODS,
PCM_PARAM_BUFFER_TIME,
PCM_PARAM_BUFFER_SIZE,
PCM_PARAM_BUFFER_BYTES,
PCM_PARAM_TICK_TIME,
};
/* Mixer control types */
enum mixer_ctl_type {
MIXER_CTL_TYPE_BOOL,
MIXER_CTL_TYPE_INT,
MIXER_CTL_TYPE_ENUM,
MIXER_CTL_TYPE_BYTE,
MIXER_CTL_TYPE_IEC958,
MIXER_CTL_TYPE_INT64,
MIXER_CTL_TYPE_UNKNOWN,
MIXER_CTL_TYPE_MAX,
};
/* Open and close a stream */
struct pcm *pcm_open(unsigned int card, unsigned int device,
unsigned int flags, struct pcm_config *config);
int pcm_close(struct pcm *pcm);
int pcm_is_ready(struct pcm *pcm);
/* Obtain the parameters for a PCM */
struct pcm_params *pcm_params_get(unsigned int card, unsigned int device,
unsigned int flags);
void pcm_params_free(struct pcm_params *pcm_params);
struct pcm_mask *pcm_params_get_mask(struct pcm_params *pcm_params,
enum pcm_param param);
unsigned int pcm_params_get_min(struct pcm_params *pcm_params,
enum pcm_param param);
unsigned int pcm_params_get_max(struct pcm_params *pcm_params,
enum pcm_param param);
/* Returns a human readable reason for the last error */
const char *pcm_get_error(struct pcm *pcm);
/* Returns the sample size in bits for a PCM format.
* As with ALSA formats, this is the storage size for the format, whereas the
* format represents the number of significant bits. For example,
* PCM_FORMAT_S24_LE uses 32 bits of storage.
*/
unsigned int pcm_format_to_bits(enum pcm_format format);
/* Returns the buffer size (int frames) that should be used for pcm_write. */
unsigned int pcm_get_buffer_size(struct pcm *pcm);
unsigned int pcm_frames_to_bytes(struct pcm *pcm, unsigned int frames);
unsigned int pcm_bytes_to_frames(struct pcm *pcm, unsigned int bytes);
/* Returns available frames in pcm buffer and corresponding time stamp.
* The clock is CLOCK_MONOTONIC if flag PCM_MONOTONIC was specified in pcm_open,
* otherwise the clock is CLOCK_REALTIME.
* For an input stream, frames available are frames ready for the
* application to read.
* For an output stream, frames available are the number of empty frames available
* for the application to write.
*/
int pcm_get_htimestamp(struct pcm *pcm, unsigned int *avail,
struct timespec *tstamp);
/* Write data to the fifo.
* Will start playback on the first write or on a write that
* occurs after a fifo underrun.
*/
int pcm_write(struct pcm *pcm, const void *data, unsigned int count);
int pcm_read(struct pcm *pcm, void *data, unsigned int count);
/*
* mmap() support.
*/
int pcm_mmap_write(struct pcm *pcm, const void *data, unsigned int count);
int pcm_mmap_read(struct pcm *pcm, void *data, unsigned int count);
int pcm_mmap_begin(struct pcm *pcm, void **areas, unsigned int *offset,
unsigned int *frames);
int pcm_mmap_commit(struct pcm *pcm, unsigned int offset, unsigned int frames);
/* Prepare the PCM substream to be triggerable */
int pcm_prepare(struct pcm *pcm);
/* Start and stop a PCM channel that doesn't transfer data */
int pcm_start(struct pcm *pcm);
int pcm_stop(struct pcm *pcm);
/* Interrupt driven API */
int pcm_wait(struct pcm *pcm, int timeout);
/*
* MIXER API
*/
struct mixer;
struct mixer_ctl;
/* Open and close a mixer */
struct mixer *mixer_open(unsigned int card);
void mixer_close(struct mixer *mixer);
/* Get info about a mixer */
const char *mixer_get_name(struct mixer *mixer);
/* Obtain mixer controls */
unsigned int mixer_get_num_ctls(struct mixer *mixer);
struct mixer_ctl *mixer_get_ctl(struct mixer *mixer, unsigned int id);
struct mixer_ctl *mixer_get_ctl_by_name(struct mixer *mixer, const char *name);
/* Get info about mixer controls */
const char *mixer_ctl_get_name(struct mixer_ctl *ctl);
enum mixer_ctl_type mixer_ctl_get_type(struct mixer_ctl *ctl);
const char *mixer_ctl_get_type_string(struct mixer_ctl *ctl);
unsigned int mixer_ctl_get_num_values(struct mixer_ctl *ctl);
unsigned int mixer_ctl_get_num_enums(struct mixer_ctl *ctl);
const char *mixer_ctl_get_enum_string(struct mixer_ctl *ctl,
unsigned int enum_id);
/* Some sound cards update their controls due to external events,
* such as HDMI EDID byte data changing when an HDMI cable is
* connected. This API allows the count of elements to be updated.
*/
void mixer_ctl_update(struct mixer_ctl *ctl);
/* Set and get mixer controls */
int mixer_ctl_get_percent(struct mixer_ctl *ctl, unsigned int id);
int mixer_ctl_set_percent(struct mixer_ctl *ctl, unsigned int id, int percent);
int mixer_ctl_get_value(struct mixer_ctl *ctl, unsigned int id);
int mixer_ctl_get_array(struct mixer_ctl *ctl, void *array, size_t count);
int mixer_ctl_set_value(struct mixer_ctl *ctl, unsigned int id, int value);
int mixer_ctl_set_array(struct mixer_ctl *ctl, const void *array, size_t count);
int mixer_ctl_set_enum_by_string(struct mixer_ctl *ctl, const char *string);
/* Determe range of integer mixer controls */
int mixer_ctl_get_range_min(struct mixer_ctl *ctl);
int mixer_ctl_get_range_max(struct mixer_ctl *ctl);
#if defined(__cplusplus)
} /* extern "C" */
#endif
#endif