Home | History | Annotate | Download | only in sound
      1 /****************************************************************************
      2  ****************************************************************************
      3  ***
      4  ***   This header was automatically generated from a Linux kernel header
      5  ***   of the same name, to make information necessary for userspace to
      6  ***   call into the kernel available to libc.  It contains only constants,
      7  ***   structures, and macros generated from the original header, and thus,
      8  ***   contains no copyrightable information.
      9  ***
     10  ***   To edit the content of this header, modify the corresponding
     11  ***   source file (e.g. under external/kernel-headers/original/) then
     12  ***   run bionic/libc/kernel/tools/update_all.py
     13  ***
     14  ***   Any manual change here will be lost the next time this script will
     15  ***   be run. You've been warned!
     16  ***
     17  ****************************************************************************
     18  ****************************************************************************/
     19 #ifndef _UAPI__SOUND_ASOUND_H
     20 #define _UAPI__SOUND_ASOUND_H
     21 #ifdef __linux__
     22 #include <linux/types.h>
     23 #else
     24 #include <sys/ioctl.h>
     25 #endif
     26 #include <stdlib.h>
     27 #define SNDRV_PROTOCOL_VERSION(major,minor,subminor) (((major) << 16) | ((minor) << 8) | (subminor))
     28 #define SNDRV_PROTOCOL_MAJOR(version) (((version) >> 16) & 0xffff)
     29 #define SNDRV_PROTOCOL_MINOR(version) (((version) >> 8) & 0xff)
     30 #define SNDRV_PROTOCOL_MICRO(version) ((version) & 0xff)
     31 #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)))
     32 struct snd_aes_iec958 {
     33   unsigned char status[24];
     34   unsigned char subcode[147];
     35   unsigned char pad;
     36   unsigned char dig_subframe[4];
     37 };
     38 struct snd_cea_861_aud_if {
     39   unsigned char db1_ct_cc;
     40   unsigned char db2_sf_ss;
     41   unsigned char db3;
     42   unsigned char db4_ca;
     43   unsigned char db5_dminh_lsv;
     44 };
     45 #define SNDRV_HWDEP_VERSION SNDRV_PROTOCOL_VERSION(1, 0, 1)
     46 enum {
     47   SNDRV_HWDEP_IFACE_OPL2 = 0,
     48   SNDRV_HWDEP_IFACE_OPL3,
     49   SNDRV_HWDEP_IFACE_OPL4,
     50   SNDRV_HWDEP_IFACE_SB16CSP,
     51   SNDRV_HWDEP_IFACE_EMU10K1,
     52   SNDRV_HWDEP_IFACE_YSS225,
     53   SNDRV_HWDEP_IFACE_ICS2115,
     54   SNDRV_HWDEP_IFACE_SSCAPE,
     55   SNDRV_HWDEP_IFACE_VX,
     56   SNDRV_HWDEP_IFACE_MIXART,
     57   SNDRV_HWDEP_IFACE_USX2Y,
     58   SNDRV_HWDEP_IFACE_EMUX_WAVETABLE,
     59   SNDRV_HWDEP_IFACE_BLUETOOTH,
     60   SNDRV_HWDEP_IFACE_USX2Y_PCM,
     61   SNDRV_HWDEP_IFACE_PCXHR,
     62   SNDRV_HWDEP_IFACE_SB_RC,
     63   SNDRV_HWDEP_IFACE_HDA,
     64   SNDRV_HWDEP_IFACE_USB_STREAM,
     65   SNDRV_HWDEP_IFACE_FW_DICE,
     66   SNDRV_HWDEP_IFACE_FW_FIREWORKS,
     67   SNDRV_HWDEP_IFACE_FW_BEBOB,
     68   SNDRV_HWDEP_IFACE_FW_OXFW,
     69   SNDRV_HWDEP_IFACE_FW_DIGI00X,
     70   SNDRV_HWDEP_IFACE_FW_TASCAM,
     71   SNDRV_HWDEP_IFACE_LINE6,
     72   SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_LINE6
     73 };
     74 struct snd_hwdep_info {
     75   unsigned int device;
     76   int card;
     77   unsigned char id[64];
     78   unsigned char name[80];
     79   int iface;
     80   unsigned char reserved[64];
     81 };
     82 struct snd_hwdep_dsp_status {
     83   unsigned int version;
     84   unsigned char id[32];
     85   unsigned int num_dsps;
     86   unsigned int dsp_loaded;
     87   unsigned int chip_ready;
     88   unsigned char reserved[16];
     89 };
     90 struct snd_hwdep_dsp_image {
     91   unsigned int index;
     92   unsigned char name[64];
     93   unsigned char __user * image;
     94   size_t length;
     95   unsigned long driver_data;
     96 };
     97 #define SNDRV_HWDEP_IOCTL_PVERSION _IOR('H', 0x00, int)
     98 #define SNDRV_HWDEP_IOCTL_INFO _IOR('H', 0x01, struct snd_hwdep_info)
     99 #define SNDRV_HWDEP_IOCTL_DSP_STATUS _IOR('H', 0x02, struct snd_hwdep_dsp_status)
    100 #define SNDRV_HWDEP_IOCTL_DSP_LOAD _IOW('H', 0x03, struct snd_hwdep_dsp_image)
    101 #define SNDRV_PCM_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 13)
    102 typedef unsigned long snd_pcm_uframes_t;
    103 typedef signed long snd_pcm_sframes_t;
    104 enum {
    105   SNDRV_PCM_CLASS_GENERIC = 0,
    106   SNDRV_PCM_CLASS_MULTI,
    107   SNDRV_PCM_CLASS_MODEM,
    108   SNDRV_PCM_CLASS_DIGITIZER,
    109   SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
    110 };
    111 enum {
    112   SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0,
    113   SNDRV_PCM_SUBCLASS_MULTI_MIX,
    114   SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
    115 };
    116 enum {
    117   SNDRV_PCM_STREAM_PLAYBACK = 0,
    118   SNDRV_PCM_STREAM_CAPTURE,
    119   SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
    120 };
    121 typedef int __bitwise snd_pcm_access_t;
    122 #define SNDRV_PCM_ACCESS_MMAP_INTERLEAVED ((__force snd_pcm_access_t) 0)
    123 #define SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED ((__force snd_pcm_access_t) 1)
    124 #define SNDRV_PCM_ACCESS_MMAP_COMPLEX ((__force snd_pcm_access_t) 2)
    125 #define SNDRV_PCM_ACCESS_RW_INTERLEAVED ((__force snd_pcm_access_t) 3)
    126 #define SNDRV_PCM_ACCESS_RW_NONINTERLEAVED ((__force snd_pcm_access_t) 4)
    127 #define SNDRV_PCM_ACCESS_LAST SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
    128 typedef int __bitwise snd_pcm_format_t;
    129 #define SNDRV_PCM_FORMAT_S8 ((__force snd_pcm_format_t) 0)
    130 #define SNDRV_PCM_FORMAT_U8 ((__force snd_pcm_format_t) 1)
    131 #define SNDRV_PCM_FORMAT_S16_LE ((__force snd_pcm_format_t) 2)
    132 #define SNDRV_PCM_FORMAT_S16_BE ((__force snd_pcm_format_t) 3)
    133 #define SNDRV_PCM_FORMAT_U16_LE ((__force snd_pcm_format_t) 4)
    134 #define SNDRV_PCM_FORMAT_U16_BE ((__force snd_pcm_format_t) 5)
    135 #define SNDRV_PCM_FORMAT_S24_LE ((__force snd_pcm_format_t) 6)
    136 #define SNDRV_PCM_FORMAT_S24_BE ((__force snd_pcm_format_t) 7)
    137 #define SNDRV_PCM_FORMAT_U24_LE ((__force snd_pcm_format_t) 8)
    138 #define SNDRV_PCM_FORMAT_U24_BE ((__force snd_pcm_format_t) 9)
    139 #define SNDRV_PCM_FORMAT_S32_LE ((__force snd_pcm_format_t) 10)
    140 #define SNDRV_PCM_FORMAT_S32_BE ((__force snd_pcm_format_t) 11)
    141 #define SNDRV_PCM_FORMAT_U32_LE ((__force snd_pcm_format_t) 12)
    142 #define SNDRV_PCM_FORMAT_U32_BE ((__force snd_pcm_format_t) 13)
    143 #define SNDRV_PCM_FORMAT_FLOAT_LE ((__force snd_pcm_format_t) 14)
    144 #define SNDRV_PCM_FORMAT_FLOAT_BE ((__force snd_pcm_format_t) 15)
    145 #define SNDRV_PCM_FORMAT_FLOAT64_LE ((__force snd_pcm_format_t) 16)
    146 #define SNDRV_PCM_FORMAT_FLOAT64_BE ((__force snd_pcm_format_t) 17)
    147 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((__force snd_pcm_format_t) 18)
    148 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((__force snd_pcm_format_t) 19)
    149 #define SNDRV_PCM_FORMAT_MU_LAW ((__force snd_pcm_format_t) 20)
    150 #define SNDRV_PCM_FORMAT_A_LAW ((__force snd_pcm_format_t) 21)
    151 #define SNDRV_PCM_FORMAT_IMA_ADPCM ((__force snd_pcm_format_t) 22)
    152 #define SNDRV_PCM_FORMAT_MPEG ((__force snd_pcm_format_t) 23)
    153 #define SNDRV_PCM_FORMAT_GSM ((__force snd_pcm_format_t) 24)
    154 #define SNDRV_PCM_FORMAT_SPECIAL ((__force snd_pcm_format_t) 31)
    155 #define SNDRV_PCM_FORMAT_S24_3LE ((__force snd_pcm_format_t) 32)
    156 #define SNDRV_PCM_FORMAT_S24_3BE ((__force snd_pcm_format_t) 33)
    157 #define SNDRV_PCM_FORMAT_U24_3LE ((__force snd_pcm_format_t) 34)
    158 #define SNDRV_PCM_FORMAT_U24_3BE ((__force snd_pcm_format_t) 35)
    159 #define SNDRV_PCM_FORMAT_S20_3LE ((__force snd_pcm_format_t) 36)
    160 #define SNDRV_PCM_FORMAT_S20_3BE ((__force snd_pcm_format_t) 37)
    161 #define SNDRV_PCM_FORMAT_U20_3LE ((__force snd_pcm_format_t) 38)
    162 #define SNDRV_PCM_FORMAT_U20_3BE ((__force snd_pcm_format_t) 39)
    163 #define SNDRV_PCM_FORMAT_S18_3LE ((__force snd_pcm_format_t) 40)
    164 #define SNDRV_PCM_FORMAT_S18_3BE ((__force snd_pcm_format_t) 41)
    165 #define SNDRV_PCM_FORMAT_U18_3LE ((__force snd_pcm_format_t) 42)
    166 #define SNDRV_PCM_FORMAT_U18_3BE ((__force snd_pcm_format_t) 43)
    167 #define SNDRV_PCM_FORMAT_G723_24 ((__force snd_pcm_format_t) 44)
    168 #define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45)
    169 #define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46)
    170 #define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47)
    171 #define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48)
    172 #define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49)
    173 #define SNDRV_PCM_FORMAT_DSD_U32_LE ((__force snd_pcm_format_t) 50)
    174 #define SNDRV_PCM_FORMAT_DSD_U16_BE ((__force snd_pcm_format_t) 51)
    175 #define SNDRV_PCM_FORMAT_DSD_U32_BE ((__force snd_pcm_format_t) 52)
    176 #define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U32_BE
    177 #ifdef SNDRV_LITTLE_ENDIAN
    178 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE
    179 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_LE
    180 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_LE
    181 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_LE
    182 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_LE
    183 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_LE
    184 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_LE
    185 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_LE
    186 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
    187 #endif
    188 #ifdef SNDRV_BIG_ENDIAN
    189 #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_BE
    190 #define SNDRV_PCM_FORMAT_U16 SNDRV_PCM_FORMAT_U16_BE
    191 #define SNDRV_PCM_FORMAT_S24 SNDRV_PCM_FORMAT_S24_BE
    192 #define SNDRV_PCM_FORMAT_U24 SNDRV_PCM_FORMAT_U24_BE
    193 #define SNDRV_PCM_FORMAT_S32 SNDRV_PCM_FORMAT_S32_BE
    194 #define SNDRV_PCM_FORMAT_U32 SNDRV_PCM_FORMAT_U32_BE
    195 #define SNDRV_PCM_FORMAT_FLOAT SNDRV_PCM_FORMAT_FLOAT_BE
    196 #define SNDRV_PCM_FORMAT_FLOAT64 SNDRV_PCM_FORMAT_FLOAT64_BE
    197 #define SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
    198 #endif
    199 typedef int __bitwise snd_pcm_subformat_t;
    200 #define SNDRV_PCM_SUBFORMAT_STD ((__force snd_pcm_subformat_t) 0)
    201 #define SNDRV_PCM_SUBFORMAT_LAST SNDRV_PCM_SUBFORMAT_STD
    202 #define SNDRV_PCM_INFO_MMAP 0x00000001
    203 #define SNDRV_PCM_INFO_MMAP_VALID 0x00000002
    204 #define SNDRV_PCM_INFO_DOUBLE 0x00000004
    205 #define SNDRV_PCM_INFO_BATCH 0x00000010
    206 #define SNDRV_PCM_INFO_INTERLEAVED 0x00000100
    207 #define SNDRV_PCM_INFO_NONINTERLEAVED 0x00000200
    208 #define SNDRV_PCM_INFO_COMPLEX 0x00000400
    209 #define SNDRV_PCM_INFO_BLOCK_TRANSFER 0x00010000
    210 #define SNDRV_PCM_INFO_OVERRANGE 0x00020000
    211 #define SNDRV_PCM_INFO_RESUME 0x00040000
    212 #define SNDRV_PCM_INFO_PAUSE 0x00080000
    213 #define SNDRV_PCM_INFO_HALF_DUPLEX 0x00100000
    214 #define SNDRV_PCM_INFO_JOINT_DUPLEX 0x00200000
    215 #define SNDRV_PCM_INFO_SYNC_START 0x00400000
    216 #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP 0x00800000
    217 #define SNDRV_PCM_INFO_HAS_WALL_CLOCK 0x01000000
    218 #define SNDRV_PCM_INFO_HAS_LINK_ATIME 0x01000000
    219 #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME 0x02000000
    220 #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME 0x04000000
    221 #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000
    222 #define SNDRV_PCM_INFO_DRAIN_TRIGGER 0x40000000
    223 #define SNDRV_PCM_INFO_FIFO_IN_FRAMES 0x80000000
    224 typedef int __bitwise snd_pcm_state_t;
    225 #define SNDRV_PCM_STATE_OPEN ((__force snd_pcm_state_t) 0)
    226 #define SNDRV_PCM_STATE_SETUP ((__force snd_pcm_state_t) 1)
    227 #define SNDRV_PCM_STATE_PREPARED ((__force snd_pcm_state_t) 2)
    228 #define SNDRV_PCM_STATE_RUNNING ((__force snd_pcm_state_t) 3)
    229 #define SNDRV_PCM_STATE_XRUN ((__force snd_pcm_state_t) 4)
    230 #define SNDRV_PCM_STATE_DRAINING ((__force snd_pcm_state_t) 5)
    231 #define SNDRV_PCM_STATE_PAUSED ((__force snd_pcm_state_t) 6)
    232 #define SNDRV_PCM_STATE_SUSPENDED ((__force snd_pcm_state_t) 7)
    233 #define SNDRV_PCM_STATE_DISCONNECTED ((__force snd_pcm_state_t) 8)
    234 #define SNDRV_PCM_STATE_LAST SNDRV_PCM_STATE_DISCONNECTED
    235 enum {
    236   SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
    237   SNDRV_PCM_MMAP_OFFSET_STATUS = 0x80000000,
    238   SNDRV_PCM_MMAP_OFFSET_CONTROL = 0x81000000,
    239 };
    240 union snd_pcm_sync_id {
    241   unsigned char id[16];
    242   unsigned short id16[8];
    243   unsigned int id32[4];
    244 };
    245 struct snd_pcm_info {
    246   unsigned int device;
    247   unsigned int subdevice;
    248   int stream;
    249   int card;
    250   unsigned char id[64];
    251   unsigned char name[80];
    252   unsigned char subname[32];
    253   int dev_class;
    254   int dev_subclass;
    255   unsigned int subdevices_count;
    256   unsigned int subdevices_avail;
    257   union snd_pcm_sync_id sync;
    258   unsigned char reserved[64];
    259 };
    260 typedef int snd_pcm_hw_param_t;
    261 #define SNDRV_PCM_HW_PARAM_ACCESS 0
    262 #define SNDRV_PCM_HW_PARAM_FORMAT 1
    263 #define SNDRV_PCM_HW_PARAM_SUBFORMAT 2
    264 #define SNDRV_PCM_HW_PARAM_FIRST_MASK SNDRV_PCM_HW_PARAM_ACCESS
    265 #define SNDRV_PCM_HW_PARAM_LAST_MASK SNDRV_PCM_HW_PARAM_SUBFORMAT
    266 #define SNDRV_PCM_HW_PARAM_SAMPLE_BITS 8
    267 #define SNDRV_PCM_HW_PARAM_FRAME_BITS 9
    268 #define SNDRV_PCM_HW_PARAM_CHANNELS 10
    269 #define SNDRV_PCM_HW_PARAM_RATE 11
    270 #define SNDRV_PCM_HW_PARAM_PERIOD_TIME 12
    271 #define SNDRV_PCM_HW_PARAM_PERIOD_SIZE 13
    272 #define SNDRV_PCM_HW_PARAM_PERIOD_BYTES 14
    273 #define SNDRV_PCM_HW_PARAM_PERIODS 15
    274 #define SNDRV_PCM_HW_PARAM_BUFFER_TIME 16
    275 #define SNDRV_PCM_HW_PARAM_BUFFER_SIZE 17
    276 #define SNDRV_PCM_HW_PARAM_BUFFER_BYTES 18
    277 #define SNDRV_PCM_HW_PARAM_TICK_TIME 19
    278 #define SNDRV_PCM_HW_PARAM_FIRST_INTERVAL SNDRV_PCM_HW_PARAM_SAMPLE_BITS
    279 #define SNDRV_PCM_HW_PARAM_LAST_INTERVAL SNDRV_PCM_HW_PARAM_TICK_TIME
    280 #define SNDRV_PCM_HW_PARAMS_NORESAMPLE (1 << 0)
    281 #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER (1 << 1)
    282 #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP (1 << 2)
    283 struct snd_interval {
    284   unsigned int min, max;
    285   unsigned int openmin : 1, openmax : 1, integer : 1, empty : 1;
    286 };
    287 #define SNDRV_MASK_MAX 256
    288 struct snd_mask {
    289   __u32 bits[(SNDRV_MASK_MAX + 31) / 32];
    290 };
    291 struct snd_pcm_hw_params {
    292   unsigned int flags;
    293   struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK - SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
    294   struct snd_mask mres[5];
    295   struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL - SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
    296   struct snd_interval ires[9];
    297   unsigned int rmask;
    298   unsigned int cmask;
    299   unsigned int info;
    300   unsigned int msbits;
    301   unsigned int rate_num;
    302   unsigned int rate_den;
    303   snd_pcm_uframes_t fifo_size;
    304   unsigned char reserved[64];
    305 };
    306 enum {
    307   SNDRV_PCM_TSTAMP_NONE = 0,
    308   SNDRV_PCM_TSTAMP_ENABLE,
    309   SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
    310 };
    311 struct snd_pcm_sw_params {
    312   int tstamp_mode;
    313   unsigned int period_step;
    314   unsigned int sleep_min;
    315   snd_pcm_uframes_t avail_min;
    316   snd_pcm_uframes_t xfer_align;
    317   snd_pcm_uframes_t start_threshold;
    318   snd_pcm_uframes_t stop_threshold;
    319   snd_pcm_uframes_t silence_threshold;
    320   snd_pcm_uframes_t silence_size;
    321   snd_pcm_uframes_t boundary;
    322   unsigned int proto;
    323   unsigned int tstamp_type;
    324   unsigned char reserved[56];
    325 };
    326 struct snd_pcm_channel_info {
    327   unsigned int channel;
    328   __kernel_off_t offset;
    329   unsigned int first;
    330   unsigned int step;
    331 };
    332 enum {
    333   SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
    334   SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1,
    335   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2,
    336   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3,
    337   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4,
    338   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5,
    339   SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
    340 };
    341 struct snd_pcm_status {
    342   snd_pcm_state_t state;
    343   struct timespec trigger_tstamp;
    344   struct timespec tstamp;
    345   snd_pcm_uframes_t appl_ptr;
    346   snd_pcm_uframes_t hw_ptr;
    347   snd_pcm_sframes_t delay;
    348   snd_pcm_uframes_t avail;
    349   snd_pcm_uframes_t avail_max;
    350   snd_pcm_uframes_t overrange;
    351   snd_pcm_state_t suspended_state;
    352   __u32 audio_tstamp_data;
    353   struct timespec audio_tstamp;
    354   struct timespec driver_tstamp;
    355   __u32 audio_tstamp_accuracy;
    356   unsigned char reserved[52 - 2 * sizeof(struct timespec)];
    357 };
    358 struct snd_pcm_mmap_status {
    359   snd_pcm_state_t state;
    360   int pad1;
    361   snd_pcm_uframes_t hw_ptr;
    362   struct timespec tstamp;
    363   snd_pcm_state_t suspended_state;
    364   struct timespec audio_tstamp;
    365 };
    366 struct snd_pcm_mmap_control {
    367   snd_pcm_uframes_t appl_ptr;
    368   snd_pcm_uframes_t avail_min;
    369 };
    370 #define SNDRV_PCM_SYNC_PTR_HWSYNC (1 << 0)
    371 #define SNDRV_PCM_SYNC_PTR_APPL (1 << 1)
    372 #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN (1 << 2)
    373 struct snd_pcm_sync_ptr {
    374   unsigned int flags;
    375   union {
    376     struct snd_pcm_mmap_status status;
    377     unsigned char reserved[64];
    378   } s;
    379   union {
    380     struct snd_pcm_mmap_control control;
    381     unsigned char reserved[64];
    382   } c;
    383 };
    384 struct snd_xferi {
    385   snd_pcm_sframes_t result;
    386   void __user * buf;
    387   snd_pcm_uframes_t frames;
    388 };
    389 struct snd_xfern {
    390   snd_pcm_sframes_t result;
    391   void __user * __user * bufs;
    392   snd_pcm_uframes_t frames;
    393 };
    394 enum {
    395   SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0,
    396   SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,
    397   SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
    398   SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
    399 };
    400 enum {
    401   SNDRV_CHMAP_UNKNOWN = 0,
    402   SNDRV_CHMAP_NA,
    403   SNDRV_CHMAP_MONO,
    404   SNDRV_CHMAP_FL,
    405   SNDRV_CHMAP_FR,
    406   SNDRV_CHMAP_RL,
    407   SNDRV_CHMAP_RR,
    408   SNDRV_CHMAP_FC,
    409   SNDRV_CHMAP_LFE,
    410   SNDRV_CHMAP_SL,
    411   SNDRV_CHMAP_SR,
    412   SNDRV_CHMAP_RC,
    413   SNDRV_CHMAP_FLC,
    414   SNDRV_CHMAP_FRC,
    415   SNDRV_CHMAP_RLC,
    416   SNDRV_CHMAP_RRC,
    417   SNDRV_CHMAP_FLW,
    418   SNDRV_CHMAP_FRW,
    419   SNDRV_CHMAP_FLH,
    420   SNDRV_CHMAP_FCH,
    421   SNDRV_CHMAP_FRH,
    422   SNDRV_CHMAP_TC,
    423   SNDRV_CHMAP_TFL,
    424   SNDRV_CHMAP_TFR,
    425   SNDRV_CHMAP_TFC,
    426   SNDRV_CHMAP_TRL,
    427   SNDRV_CHMAP_TRR,
    428   SNDRV_CHMAP_TRC,
    429   SNDRV_CHMAP_TFLC,
    430   SNDRV_CHMAP_TFRC,
    431   SNDRV_CHMAP_TSL,
    432   SNDRV_CHMAP_TSR,
    433   SNDRV_CHMAP_LLFE,
    434   SNDRV_CHMAP_RLFE,
    435   SNDRV_CHMAP_BC,
    436   SNDRV_CHMAP_BLC,
    437   SNDRV_CHMAP_BRC,
    438   SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
    439 };
    440 #define SNDRV_CHMAP_POSITION_MASK 0xffff
    441 #define SNDRV_CHMAP_PHASE_INVERSE (0x01 << 16)
    442 #define SNDRV_CHMAP_DRIVER_SPEC (0x02 << 16)
    443 #define SNDRV_PCM_IOCTL_PVERSION _IOR('A', 0x00, int)
    444 #define SNDRV_PCM_IOCTL_INFO _IOR('A', 0x01, struct snd_pcm_info)
    445 #define SNDRV_PCM_IOCTL_TSTAMP _IOW('A', 0x02, int)
    446 #define SNDRV_PCM_IOCTL_TTSTAMP _IOW('A', 0x03, int)
    447 #define SNDRV_PCM_IOCTL_HW_REFINE _IOWR('A', 0x10, struct snd_pcm_hw_params)
    448 #define SNDRV_PCM_IOCTL_HW_PARAMS _IOWR('A', 0x11, struct snd_pcm_hw_params)
    449 #define SNDRV_PCM_IOCTL_HW_FREE _IO('A', 0x12)
    450 #define SNDRV_PCM_IOCTL_SW_PARAMS _IOWR('A', 0x13, struct snd_pcm_sw_params)
    451 #define SNDRV_PCM_IOCTL_STATUS _IOR('A', 0x20, struct snd_pcm_status)
    452 #define SNDRV_PCM_IOCTL_DELAY _IOR('A', 0x21, snd_pcm_sframes_t)
    453 #define SNDRV_PCM_IOCTL_HWSYNC _IO('A', 0x22)
    454 #define SNDRV_PCM_IOCTL_SYNC_PTR _IOWR('A', 0x23, struct snd_pcm_sync_ptr)
    455 #define SNDRV_PCM_IOCTL_STATUS_EXT _IOWR('A', 0x24, struct snd_pcm_status)
    456 #define SNDRV_PCM_IOCTL_CHANNEL_INFO _IOR('A', 0x32, struct snd_pcm_channel_info)
    457 #define SNDRV_PCM_IOCTL_PREPARE _IO('A', 0x40)
    458 #define SNDRV_PCM_IOCTL_RESET _IO('A', 0x41)
    459 #define SNDRV_PCM_IOCTL_START _IO('A', 0x42)
    460 #define SNDRV_PCM_IOCTL_DROP _IO('A', 0x43)
    461 #define SNDRV_PCM_IOCTL_DRAIN _IO('A', 0x44)
    462 #define SNDRV_PCM_IOCTL_PAUSE _IOW('A', 0x45, int)
    463 #define SNDRV_PCM_IOCTL_REWIND _IOW('A', 0x46, snd_pcm_uframes_t)
    464 #define SNDRV_PCM_IOCTL_RESUME _IO('A', 0x47)
    465 #define SNDRV_PCM_IOCTL_XRUN _IO('A', 0x48)
    466 #define SNDRV_PCM_IOCTL_FORWARD _IOW('A', 0x49, snd_pcm_uframes_t)
    467 #define SNDRV_PCM_IOCTL_WRITEI_FRAMES _IOW('A', 0x50, struct snd_xferi)
    468 #define SNDRV_PCM_IOCTL_READI_FRAMES _IOR('A', 0x51, struct snd_xferi)
    469 #define SNDRV_PCM_IOCTL_WRITEN_FRAMES _IOW('A', 0x52, struct snd_xfern)
    470 #define SNDRV_PCM_IOCTL_READN_FRAMES _IOR('A', 0x53, struct snd_xfern)
    471 #define SNDRV_PCM_IOCTL_LINK _IOW('A', 0x60, int)
    472 #define SNDRV_PCM_IOCTL_UNLINK _IO('A', 0x61)
    473 #define SNDRV_RAWMIDI_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 0)
    474 enum {
    475   SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
    476   SNDRV_RAWMIDI_STREAM_INPUT,
    477   SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
    478 };
    479 #define SNDRV_RAWMIDI_INFO_OUTPUT 0x00000001
    480 #define SNDRV_RAWMIDI_INFO_INPUT 0x00000002
    481 #define SNDRV_RAWMIDI_INFO_DUPLEX 0x00000004
    482 struct snd_rawmidi_info {
    483   unsigned int device;
    484   unsigned int subdevice;
    485   int stream;
    486   int card;
    487   unsigned int flags;
    488   unsigned char id[64];
    489   unsigned char name[80];
    490   unsigned char subname[32];
    491   unsigned int subdevices_count;
    492   unsigned int subdevices_avail;
    493   unsigned char reserved[64];
    494 };
    495 struct snd_rawmidi_params {
    496   int stream;
    497   size_t buffer_size;
    498   size_t avail_min;
    499   unsigned int no_active_sensing : 1;
    500   unsigned char reserved[16];
    501 };
    502 struct snd_rawmidi_status {
    503   int stream;
    504   struct timespec tstamp;
    505   size_t avail;
    506   size_t xruns;
    507   unsigned char reserved[16];
    508 };
    509 #define SNDRV_RAWMIDI_IOCTL_PVERSION _IOR('W', 0x00, int)
    510 #define SNDRV_RAWMIDI_IOCTL_INFO _IOR('W', 0x01, struct snd_rawmidi_info)
    511 #define SNDRV_RAWMIDI_IOCTL_PARAMS _IOWR('W', 0x10, struct snd_rawmidi_params)
    512 #define SNDRV_RAWMIDI_IOCTL_STATUS _IOWR('W', 0x20, struct snd_rawmidi_status)
    513 #define SNDRV_RAWMIDI_IOCTL_DROP _IOW('W', 0x30, int)
    514 #define SNDRV_RAWMIDI_IOCTL_DRAIN _IOW('W', 0x31, int)
    515 #define SNDRV_TIMER_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 6)
    516 enum {
    517   SNDRV_TIMER_CLASS_NONE = - 1,
    518   SNDRV_TIMER_CLASS_SLAVE = 0,
    519   SNDRV_TIMER_CLASS_GLOBAL,
    520   SNDRV_TIMER_CLASS_CARD,
    521   SNDRV_TIMER_CLASS_PCM,
    522   SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
    523 };
    524 enum {
    525   SNDRV_TIMER_SCLASS_NONE = 0,
    526   SNDRV_TIMER_SCLASS_APPLICATION,
    527   SNDRV_TIMER_SCLASS_SEQUENCER,
    528   SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
    529   SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
    530 };
    531 #define SNDRV_TIMER_GLOBAL_SYSTEM 0
    532 #define SNDRV_TIMER_GLOBAL_RTC 1
    533 #define SNDRV_TIMER_GLOBAL_HPET 2
    534 #define SNDRV_TIMER_GLOBAL_HRTIMER 3
    535 #define SNDRV_TIMER_FLG_SLAVE (1 << 0)
    536 struct snd_timer_id {
    537   int dev_class;
    538   int dev_sclass;
    539   int card;
    540   int device;
    541   int subdevice;
    542 };
    543 struct snd_timer_ginfo {
    544   struct snd_timer_id tid;
    545   unsigned int flags;
    546   int card;
    547   unsigned char id[64];
    548   unsigned char name[80];
    549   unsigned long reserved0;
    550   unsigned long resolution;
    551   unsigned long resolution_min;
    552   unsigned long resolution_max;
    553   unsigned int clients;
    554   unsigned char reserved[32];
    555 };
    556 struct snd_timer_gparams {
    557   struct snd_timer_id tid;
    558   unsigned long period_num;
    559   unsigned long period_den;
    560   unsigned char reserved[32];
    561 };
    562 struct snd_timer_gstatus {
    563   struct snd_timer_id tid;
    564   unsigned long resolution;
    565   unsigned long resolution_num;
    566   unsigned long resolution_den;
    567   unsigned char reserved[32];
    568 };
    569 struct snd_timer_select {
    570   struct snd_timer_id id;
    571   unsigned char reserved[32];
    572 };
    573 struct snd_timer_info {
    574   unsigned int flags;
    575   int card;
    576   unsigned char id[64];
    577   unsigned char name[80];
    578   unsigned long reserved0;
    579   unsigned long resolution;
    580   unsigned char reserved[64];
    581 };
    582 #define SNDRV_TIMER_PSFLG_AUTO (1 << 0)
    583 #define SNDRV_TIMER_PSFLG_EXCLUSIVE (1 << 1)
    584 #define SNDRV_TIMER_PSFLG_EARLY_EVENT (1 << 2)
    585 struct snd_timer_params {
    586   unsigned int flags;
    587   unsigned int ticks;
    588   unsigned int queue_size;
    589   unsigned int reserved0;
    590   unsigned int filter;
    591   unsigned char reserved[60];
    592 };
    593 struct snd_timer_status {
    594   struct timespec tstamp;
    595   unsigned int resolution;
    596   unsigned int lost;
    597   unsigned int overrun;
    598   unsigned int queue;
    599   unsigned char reserved[64];
    600 };
    601 #define SNDRV_TIMER_IOCTL_PVERSION _IOR('T', 0x00, int)
    602 #define SNDRV_TIMER_IOCTL_NEXT_DEVICE _IOWR('T', 0x01, struct snd_timer_id)
    603 #define SNDRV_TIMER_IOCTL_TREAD _IOW('T', 0x02, int)
    604 #define SNDRV_TIMER_IOCTL_GINFO _IOWR('T', 0x03, struct snd_timer_ginfo)
    605 #define SNDRV_TIMER_IOCTL_GPARAMS _IOW('T', 0x04, struct snd_timer_gparams)
    606 #define SNDRV_TIMER_IOCTL_GSTATUS _IOWR('T', 0x05, struct snd_timer_gstatus)
    607 #define SNDRV_TIMER_IOCTL_SELECT _IOW('T', 0x10, struct snd_timer_select)
    608 #define SNDRV_TIMER_IOCTL_INFO _IOR('T', 0x11, struct snd_timer_info)
    609 #define SNDRV_TIMER_IOCTL_PARAMS _IOW('T', 0x12, struct snd_timer_params)
    610 #define SNDRV_TIMER_IOCTL_STATUS _IOR('T', 0x14, struct snd_timer_status)
    611 #define SNDRV_TIMER_IOCTL_START _IO('T', 0xa0)
    612 #define SNDRV_TIMER_IOCTL_STOP _IO('T', 0xa1)
    613 #define SNDRV_TIMER_IOCTL_CONTINUE _IO('T', 0xa2)
    614 #define SNDRV_TIMER_IOCTL_PAUSE _IO('T', 0xa3)
    615 struct snd_timer_read {
    616   unsigned int resolution;
    617   unsigned int ticks;
    618 };
    619 enum {
    620   SNDRV_TIMER_EVENT_RESOLUTION = 0,
    621   SNDRV_TIMER_EVENT_TICK,
    622   SNDRV_TIMER_EVENT_START,
    623   SNDRV_TIMER_EVENT_STOP,
    624   SNDRV_TIMER_EVENT_CONTINUE,
    625   SNDRV_TIMER_EVENT_PAUSE,
    626   SNDRV_TIMER_EVENT_EARLY,
    627   SNDRV_TIMER_EVENT_SUSPEND,
    628   SNDRV_TIMER_EVENT_RESUME,
    629   SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
    630   SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
    631   SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
    632   SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
    633   SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
    634   SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
    635 };
    636 struct snd_timer_tread {
    637   int event;
    638   struct timespec tstamp;
    639   unsigned int val;
    640 };
    641 #define SNDRV_CTL_VERSION SNDRV_PROTOCOL_VERSION(2, 0, 7)
    642 struct snd_ctl_card_info {
    643   int card;
    644   int pad;
    645   unsigned char id[16];
    646   unsigned char driver[16];
    647   unsigned char name[32];
    648   unsigned char longname[80];
    649   unsigned char reserved_[16];
    650   unsigned char mixername[80];
    651   unsigned char components[128];
    652 };
    653 typedef int __bitwise snd_ctl_elem_type_t;
    654 #define SNDRV_CTL_ELEM_TYPE_NONE ((__force snd_ctl_elem_type_t) 0)
    655 #define SNDRV_CTL_ELEM_TYPE_BOOLEAN ((__force snd_ctl_elem_type_t) 1)
    656 #define SNDRV_CTL_ELEM_TYPE_INTEGER ((__force snd_ctl_elem_type_t) 2)
    657 #define SNDRV_CTL_ELEM_TYPE_ENUMERATED ((__force snd_ctl_elem_type_t) 3)
    658 #define SNDRV_CTL_ELEM_TYPE_BYTES ((__force snd_ctl_elem_type_t) 4)
    659 #define SNDRV_CTL_ELEM_TYPE_IEC958 ((__force snd_ctl_elem_type_t) 5)
    660 #define SNDRV_CTL_ELEM_TYPE_INTEGER64 ((__force snd_ctl_elem_type_t) 6)
    661 #define SNDRV_CTL_ELEM_TYPE_LAST SNDRV_CTL_ELEM_TYPE_INTEGER64
    662 typedef int __bitwise snd_ctl_elem_iface_t;
    663 #define SNDRV_CTL_ELEM_IFACE_CARD ((__force snd_ctl_elem_iface_t) 0)
    664 #define SNDRV_CTL_ELEM_IFACE_HWDEP ((__force snd_ctl_elem_iface_t) 1)
    665 #define SNDRV_CTL_ELEM_IFACE_MIXER ((__force snd_ctl_elem_iface_t) 2)
    666 #define SNDRV_CTL_ELEM_IFACE_PCM ((__force snd_ctl_elem_iface_t) 3)
    667 #define SNDRV_CTL_ELEM_IFACE_RAWMIDI ((__force snd_ctl_elem_iface_t) 4)
    668 #define SNDRV_CTL_ELEM_IFACE_TIMER ((__force snd_ctl_elem_iface_t) 5)
    669 #define SNDRV_CTL_ELEM_IFACE_SEQUENCER ((__force snd_ctl_elem_iface_t) 6)
    670 #define SNDRV_CTL_ELEM_IFACE_LAST SNDRV_CTL_ELEM_IFACE_SEQUENCER
    671 #define SNDRV_CTL_ELEM_ACCESS_READ (1 << 0)
    672 #define SNDRV_CTL_ELEM_ACCESS_WRITE (1 << 1)
    673 #define SNDRV_CTL_ELEM_ACCESS_READWRITE (SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_WRITE)
    674 #define SNDRV_CTL_ELEM_ACCESS_VOLATILE (1 << 2)
    675 #define SNDRV_CTL_ELEM_ACCESS_TIMESTAMP (1 << 3)
    676 #define SNDRV_CTL_ELEM_ACCESS_TLV_READ (1 << 4)
    677 #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE (1 << 5)
    678 #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE (SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
    679 #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND (1 << 6)
    680 #define SNDRV_CTL_ELEM_ACCESS_INACTIVE (1 << 8)
    681 #define SNDRV_CTL_ELEM_ACCESS_LOCK (1 << 9)
    682 #define SNDRV_CTL_ELEM_ACCESS_OWNER (1 << 10)
    683 #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK (1 << 28)
    684 #define SNDRV_CTL_ELEM_ACCESS_USER (1 << 29)
    685 #define SNDRV_CTL_POWER_D0 0x0000
    686 #define SNDRV_CTL_POWER_D1 0x0100
    687 #define SNDRV_CTL_POWER_D2 0x0200
    688 #define SNDRV_CTL_POWER_D3 0x0300
    689 #define SNDRV_CTL_POWER_D3hot (SNDRV_CTL_POWER_D3 | 0x0000)
    690 #define SNDRV_CTL_POWER_D3cold (SNDRV_CTL_POWER_D3 | 0x0001)
    691 #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN 44
    692 struct snd_ctl_elem_id {
    693   unsigned int numid;
    694   snd_ctl_elem_iface_t iface;
    695   unsigned int device;
    696   unsigned int subdevice;
    697   unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
    698   unsigned int index;
    699 };
    700 struct snd_ctl_elem_list {
    701   unsigned int offset;
    702   unsigned int space;
    703   unsigned int used;
    704   unsigned int count;
    705   struct snd_ctl_elem_id __user * pids;
    706   unsigned char reserved[50];
    707 };
    708 struct snd_ctl_elem_info {
    709   struct snd_ctl_elem_id id;
    710   snd_ctl_elem_type_t type;
    711   unsigned int access;
    712   unsigned int count;
    713   __kernel_pid_t owner;
    714   union {
    715     struct {
    716       long min;
    717       long max;
    718       long step;
    719     } integer;
    720     struct {
    721       long long min;
    722       long long max;
    723       long long step;
    724     } integer64;
    725     struct {
    726       unsigned int items;
    727       unsigned int item;
    728       char name[64];
    729       __u64 names_ptr;
    730       unsigned int names_length;
    731     } enumerated;
    732     unsigned char reserved[128];
    733   } value;
    734   union {
    735     unsigned short d[4];
    736     unsigned short * d_ptr;
    737   } dimen;
    738   unsigned char reserved[64 - 4 * sizeof(unsigned short)];
    739 };
    740 struct snd_ctl_elem_value {
    741   struct snd_ctl_elem_id id;
    742   unsigned int indirect : 1;
    743   union {
    744     union {
    745       long value[128];
    746       long * value_ptr;
    747     } integer;
    748     union {
    749       long long value[64];
    750       long long * value_ptr;
    751     } integer64;
    752     union {
    753       unsigned int item[128];
    754       unsigned int * item_ptr;
    755     } enumerated;
    756     union {
    757       unsigned char data[512];
    758       unsigned char * data_ptr;
    759     } bytes;
    760     struct snd_aes_iec958 iec958;
    761   } value;
    762   struct timespec tstamp;
    763   unsigned char reserved[128 - sizeof(struct timespec)];
    764 };
    765 struct snd_ctl_tlv {
    766   unsigned int numid;
    767   unsigned int length;
    768   unsigned int tlv[0];
    769 };
    770 #define SNDRV_CTL_IOCTL_PVERSION _IOR('U', 0x00, int)
    771 #define SNDRV_CTL_IOCTL_CARD_INFO _IOR('U', 0x01, struct snd_ctl_card_info)
    772 #define SNDRV_CTL_IOCTL_ELEM_LIST _IOWR('U', 0x10, struct snd_ctl_elem_list)
    773 #define SNDRV_CTL_IOCTL_ELEM_INFO _IOWR('U', 0x11, struct snd_ctl_elem_info)
    774 #define SNDRV_CTL_IOCTL_ELEM_READ _IOWR('U', 0x12, struct snd_ctl_elem_value)
    775 #define SNDRV_CTL_IOCTL_ELEM_WRITE _IOWR('U', 0x13, struct snd_ctl_elem_value)
    776 #define SNDRV_CTL_IOCTL_ELEM_LOCK _IOW('U', 0x14, struct snd_ctl_elem_id)
    777 #define SNDRV_CTL_IOCTL_ELEM_UNLOCK _IOW('U', 0x15, struct snd_ctl_elem_id)
    778 #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
    779 #define SNDRV_CTL_IOCTL_ELEM_ADD _IOWR('U', 0x17, struct snd_ctl_elem_info)
    780 #define SNDRV_CTL_IOCTL_ELEM_REPLACE _IOWR('U', 0x18, struct snd_ctl_elem_info)
    781 #define SNDRV_CTL_IOCTL_ELEM_REMOVE _IOWR('U', 0x19, struct snd_ctl_elem_id)
    782 #define SNDRV_CTL_IOCTL_TLV_READ _IOWR('U', 0x1a, struct snd_ctl_tlv)
    783 #define SNDRV_CTL_IOCTL_TLV_WRITE _IOWR('U', 0x1b, struct snd_ctl_tlv)
    784 #define SNDRV_CTL_IOCTL_TLV_COMMAND _IOWR('U', 0x1c, struct snd_ctl_tlv)
    785 #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
    786 #define SNDRV_CTL_IOCTL_HWDEP_INFO _IOR('U', 0x21, struct snd_hwdep_info)
    787 #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE _IOR('U', 0x30, int)
    788 #define SNDRV_CTL_IOCTL_PCM_INFO _IOWR('U', 0x31, struct snd_pcm_info)
    789 #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
    790 #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
    791 #define SNDRV_CTL_IOCTL_RAWMIDI_INFO _IOWR('U', 0x41, struct snd_rawmidi_info)
    792 #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
    793 #define SNDRV_CTL_IOCTL_POWER _IOWR('U', 0xd0, int)
    794 #define SNDRV_CTL_IOCTL_POWER_STATE _IOR('U', 0xd1, int)
    795 enum sndrv_ctl_event_type {
    796   SNDRV_CTL_EVENT_ELEM = 0,
    797   SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
    798 };
    799 #define SNDRV_CTL_EVENT_MASK_VALUE (1 << 0)
    800 #define SNDRV_CTL_EVENT_MASK_INFO (1 << 1)
    801 #define SNDRV_CTL_EVENT_MASK_ADD (1 << 2)
    802 #define SNDRV_CTL_EVENT_MASK_TLV (1 << 3)
    803 #define SNDRV_CTL_EVENT_MASK_REMOVE (~0U)
    804 struct snd_ctl_event {
    805   int type;
    806   union {
    807     struct {
    808       unsigned int mask;
    809       struct snd_ctl_elem_id id;
    810     } elem;
    811     unsigned char data8[60];
    812   } data;
    813 };
    814 #define SNDRV_CTL_NAME_NONE ""
    815 #define SNDRV_CTL_NAME_PLAYBACK "Playback "
    816 #define SNDRV_CTL_NAME_CAPTURE "Capture "
    817 #define SNDRV_CTL_NAME_IEC958_NONE ""
    818 #define SNDRV_CTL_NAME_IEC958_SWITCH "Switch"
    819 #define SNDRV_CTL_NAME_IEC958_VOLUME "Volume"
    820 #define SNDRV_CTL_NAME_IEC958_DEFAULT "Default"
    821 #define SNDRV_CTL_NAME_IEC958_MASK "Mask"
    822 #define SNDRV_CTL_NAME_IEC958_CON_MASK "Con Mask"
    823 #define SNDRV_CTL_NAME_IEC958_PRO_MASK "Pro Mask"
    824 #define SNDRV_CTL_NAME_IEC958_PCM_STREAM "PCM Stream"
    825 #define SNDRV_CTL_NAME_IEC958(expl,direction,what) "IEC958 " expl SNDRV_CTL_NAME_ ##direction SNDRV_CTL_NAME_IEC958_ ##what
    826 #endif
    827