logo

oasis-root

Compiled tree of Oasis Linux based on own branch at <https://hacktivis.me/git/oasis/> git clone https://anongit.hacktivis.me/git/oasis-root.git

asound.h (55311B)

    

  1. /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
  2. /*
  3.  *  Advanced Linux Sound Architecture - ALSA - Driver
  4.  *  Copyright (c) 1994-2003 by Jaroslav Kysela <perex@perex.cz>,
  5.  *                             Abramo Bagnara <abramo@alsa-project.org>
  6.  */
  8. #ifndef __SOUND_ASOUND_H
  9. #define __SOUND_ASOUND_H
  11. #if defined(__KERNEL__) || defined(__linux__)
  12. #include <linux/types.h>
  13. #include <asm/byteorder.h>
  14. #else
  15. #include <endian.h>
  16. #include <sys/ioctl.h>
  17. #endif
  19. #include <stdlib.h>
  20. #include <time.h>
  22. /*
  23.  *  protocol version
  24.  */
  26. #define SNDRV_PROTOCOL_VERSION(major, minor, subminor) (((major)<<16)|((minor)<<8)|(subminor))
  27. #define SNDRV_PROTOCOL_MAJOR(version) (((version)>>16)&0xffff)
  28. #define SNDRV_PROTOCOL_MINOR(version) (((version)>>8)&0xff)
  29. #define SNDRV_PROTOCOL_MICRO(version) ((version)&0xff)
  30. #define SNDRV_PROTOCOL_INCOMPATIBLE(kversion, uversion) \
  31. 	(SNDRV_PROTOCOL_MAJOR(kversion) != SNDRV_PROTOCOL_MAJOR(uversion) || \
  32. 	 (SNDRV_PROTOCOL_MAJOR(kversion) == SNDRV_PROTOCOL_MAJOR(uversion) && \
  33. 	   SNDRV_PROTOCOL_MINOR(kversion) != SNDRV_PROTOCOL_MINOR(uversion)))
  35. /****************************************************************************
  36.  *                                                                          *
  37.  *        Digital audio interface					    *
  38.  *                                                                          *
  39.  ****************************************************************************/
  41. #define AES_IEC958_STATUS_SIZE		24
  43. struct snd_aes_iec958 {
  44. 	unsigned char status[AES_IEC958_STATUS_SIZE]; /* AES/IEC958 channel status bits */
  45. 	unsigned char subcode[147];	/* AES/IEC958 subcode bits */
  46. 	unsigned char pad;		/* nothing */
  47. 	unsigned char dig_subframe[4];	/* AES/IEC958 subframe bits */
  48. };
  50. /****************************************************************************
  51.  *                                                                          *
  52.  *        CEA-861 Audio InfoFrame. Used in HDMI and DisplayPort		    *
  53.  *                                                                          *
  54.  ****************************************************************************/
  56. struct snd_cea_861_aud_if {
  57. 	unsigned char db1_ct_cc; /* coding type and channel count */
  58. 	unsigned char db2_sf_ss; /* sample frequency and size */
  59. 	unsigned char db3; /* not used, all zeros */
  60. 	unsigned char db4_ca; /* channel allocation code */
  61. 	unsigned char db5_dminh_lsv; /* downmix inhibit & level-shit values */
  62. };
  64. /****************************************************************************
  65.  *                                                                          *
  66.  *      Section for driver hardware dependent interface - /dev/snd/hw?      *
  67.  *                                                                          *
  68.  ****************************************************************************/
  70. #define SNDRV_HWDEP_VERSION		SNDRV_PROTOCOL_VERSION(1, 0, 1)
  72. enum {
  73. 	SNDRV_HWDEP_IFACE_OPL2 = 0,
  74. 	SNDRV_HWDEP_IFACE_OPL3,
  75. 	SNDRV_HWDEP_IFACE_OPL4,
  76. 	SNDRV_HWDEP_IFACE_SB16CSP,	/* Creative Signal Processor */
  77. 	SNDRV_HWDEP_IFACE_EMU10K1,	/* FX8010 processor in EMU10K1 chip */
  78. 	SNDRV_HWDEP_IFACE_YSS225,	/* Yamaha FX processor */
  79. 	SNDRV_HWDEP_IFACE_ICS2115,	/* Wavetable synth */
  80. 	SNDRV_HWDEP_IFACE_SSCAPE,	/* Ensoniq SoundScape ISA card (MC68EC000) */
  81. 	SNDRV_HWDEP_IFACE_VX,		/* Digigram VX cards */
  82. 	SNDRV_HWDEP_IFACE_MIXART,	/* Digigram miXart cards */
  83. 	SNDRV_HWDEP_IFACE_USX2Y,	/* Tascam US122, US224 & US428 usb */
  84. 	SNDRV_HWDEP_IFACE_EMUX_WAVETABLE, /* EmuX wavetable */
  85. 	SNDRV_HWDEP_IFACE_BLUETOOTH,	/* Bluetooth audio */
  86. 	SNDRV_HWDEP_IFACE_USX2Y_PCM,	/* Tascam US122, US224 & US428 rawusb pcm */
  87. 	SNDRV_HWDEP_IFACE_PCXHR,	/* Digigram PCXHR */
  88. 	SNDRV_HWDEP_IFACE_SB_RC,	/* SB Extigy/Audigy2NX remote control */
  89. 	SNDRV_HWDEP_IFACE_HDA,		/* HD-audio */
  90. 	SNDRV_HWDEP_IFACE_USB_STREAM,	/* direct access to usb stream */
  91. 	SNDRV_HWDEP_IFACE_FW_DICE,	/* TC DICE FireWire device */
  92. 	SNDRV_HWDEP_IFACE_FW_FIREWORKS,	/* Echo Audio Fireworks based device */
  93. 	SNDRV_HWDEP_IFACE_FW_BEBOB,	/* BridgeCo BeBoB based device */
  94. 	SNDRV_HWDEP_IFACE_FW_OXFW,	/* Oxford OXFW970/971 based device */
  95. 	SNDRV_HWDEP_IFACE_FW_DIGI00X,	/* Digidesign Digi 002/003 family */
  96. 	SNDRV_HWDEP_IFACE_FW_TASCAM,	/* TASCAM FireWire series */
  97. 	SNDRV_HWDEP_IFACE_LINE6,	/* Line6 USB processors */
  98. 	SNDRV_HWDEP_IFACE_FW_MOTU,	/* MOTU FireWire series */
  99. 	SNDRV_HWDEP_IFACE_FW_FIREFACE,	/* RME Fireface series */
  101. 	/* Don't forget to change the following: */
  102. 	SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_FIREFACE
  103. };
  105. struct snd_hwdep_info {
  106. 	unsigned int device;		/* WR: device number */
  107. 	int card;			/* R: card number */
  108. 	unsigned char id[64];		/* ID (user selectable) */
  109. 	unsigned char name[80];		/* hwdep name */
  110. 	int iface;			/* hwdep interface */
  111. 	unsigned char reserved[64];	/* reserved for future */
  112. };
  114. /* generic DSP loader */
  115. struct snd_hwdep_dsp_status {
  116. 	unsigned int version;		/* R: driver-specific version */
  117. 	unsigned char id[32];		/* R: driver-specific ID string */
  118. 	unsigned int num_dsps;		/* R: number of DSP images to transfer */
  119. 	unsigned int dsp_loaded;	/* R: bit flags indicating the loaded DSPs */
  120. 	unsigned int chip_ready;	/* R: 1 = initialization finished */
  121. 	unsigned char reserved[16];	/* reserved for future use */
  122. };
  124. struct snd_hwdep_dsp_image {
  125. 	unsigned int index;		/* W: DSP index */
  126. 	unsigned char name[64];		/* W: ID (e.g. file name) */
  127. 	unsigned char *image;	/* W: binary image */
  128. 	size_t length;			/* W: size of image in bytes */
  129. 	unsigned long driver_data;	/* W: driver-specific data */
  130. };
  132. #define SNDRV_HWDEP_IOCTL_PVERSION	_IOR ('H', 0x00, int)
  133. #define SNDRV_HWDEP_IOCTL_INFO		_IOR ('H', 0x01, struct snd_hwdep_info)
  134. #define SNDRV_HWDEP_IOCTL_DSP_STATUS	_IOR('H', 0x02, struct snd_hwdep_dsp_status)
  135. #define SNDRV_HWDEP_IOCTL_DSP_LOAD	_IOW('H', 0x03, struct snd_hwdep_dsp_image)
  137. /*****************************************************************************
  138.  *                                                                           *
  139.  *             Digital Audio (PCM) interface - /dev/snd/pcm??                *
  140.  *                                                                           *
  141.  *****************************************************************************/
  143. #define SNDRV_PCM_VERSION		SNDRV_PROTOCOL_VERSION(2, 0, 18)
  145. typedef unsigned long snd_pcm_uframes_t;
  146. typedef signed long snd_pcm_sframes_t;
  148. enum {
  149. 	SNDRV_PCM_CLASS_GENERIC = 0,	/* standard mono or stereo device */
  150. 	SNDRV_PCM_CLASS_MULTI,		/* multichannel device */
  151. 	SNDRV_PCM_CLASS_MODEM,		/* software modem class */
  152. 	SNDRV_PCM_CLASS_DIGITIZER,	/* digitizer class */
  153. 	/* Don't forget to change the following: */
  154. 	SNDRV_PCM_CLASS_LAST = SNDRV_PCM_CLASS_DIGITIZER,
  155. };
  157. enum {
  158. 	SNDRV_PCM_SUBCLASS_GENERIC_MIX = 0, /* mono or stereo subdevices are mixed together */
  159. 	SNDRV_PCM_SUBCLASS_MULTI_MIX,	/* multichannel subdevices are mixed together */
  160. 	/* Don't forget to change the following: */
  161. 	SNDRV_PCM_SUBCLASS_LAST = SNDRV_PCM_SUBCLASS_MULTI_MIX,
  162. };
  164. enum {
  165. 	SNDRV_PCM_STREAM_PLAYBACK = 0,
  166. 	SNDRV_PCM_STREAM_CAPTURE,
  167. 	SNDRV_PCM_STREAM_LAST = SNDRV_PCM_STREAM_CAPTURE,
  168. };
  170. typedef int __bitwise snd_pcm_access_t;
  171. #define	SNDRV_PCM_ACCESS_MMAP_INTERLEAVED	((snd_pcm_access_t) 0) /* interleaved mmap */
  172. #define	SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED	((snd_pcm_access_t) 1) /* noninterleaved mmap */
  173. #define	SNDRV_PCM_ACCESS_MMAP_COMPLEX		((snd_pcm_access_t) 2) /* complex mmap */
  174. #define	SNDRV_PCM_ACCESS_RW_INTERLEAVED		((snd_pcm_access_t) 3) /* readi/writei */
  175. #define	SNDRV_PCM_ACCESS_RW_NONINTERLEAVED	((snd_pcm_access_t) 4) /* readn/writen */
  176. #define	SNDRV_PCM_ACCESS_LAST		SNDRV_PCM_ACCESS_RW_NONINTERLEAVED
  178. typedef int __bitwise snd_pcm_format_t;
  179. #define	SNDRV_PCM_FORMAT_S8	((snd_pcm_format_t) 0)
  180. #define	SNDRV_PCM_FORMAT_U8	((snd_pcm_format_t) 1)
  181. #define	SNDRV_PCM_FORMAT_S16_LE	((snd_pcm_format_t) 2)
  182. #define	SNDRV_PCM_FORMAT_S16_BE	((snd_pcm_format_t) 3)
  183. #define	SNDRV_PCM_FORMAT_U16_LE	((snd_pcm_format_t) 4)
  184. #define	SNDRV_PCM_FORMAT_U16_BE	((snd_pcm_format_t) 5)
  185. #define	SNDRV_PCM_FORMAT_S24_LE	((snd_pcm_format_t) 6) /* low three bytes */
  186. #define	SNDRV_PCM_FORMAT_S24_BE	((snd_pcm_format_t) 7) /* low three bytes */
  187. #define	SNDRV_PCM_FORMAT_U24_LE	((snd_pcm_format_t) 8) /* low three bytes */
  188. #define	SNDRV_PCM_FORMAT_U24_BE	((snd_pcm_format_t) 9) /* low three bytes */
  189. /*
  190.  * For S32/U32 formats, 'msbits' hardware parameter is often used to deliver information about the
  191.  * available bit count in most significant bit. It's for the case of so-called 'left-justified' or
  192.  * `right-padding` sample which has less width than 32 bit.
  193.  */
  194. #define	SNDRV_PCM_FORMAT_S32_LE	((snd_pcm_format_t) 10)
  195. #define	SNDRV_PCM_FORMAT_S32_BE	((snd_pcm_format_t) 11)
  196. #define	SNDRV_PCM_FORMAT_U32_LE	((snd_pcm_format_t) 12)
  197. #define	SNDRV_PCM_FORMAT_U32_BE	((snd_pcm_format_t) 13)
  198. #define	SNDRV_PCM_FORMAT_FLOAT_LE	((snd_pcm_format_t) 14) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
  199. #define	SNDRV_PCM_FORMAT_FLOAT_BE	((snd_pcm_format_t) 15) /* 4-byte float, IEEE-754 32-bit, range -1.0 to 1.0 */
  200. #define	SNDRV_PCM_FORMAT_FLOAT64_LE	((snd_pcm_format_t) 16) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
  201. #define	SNDRV_PCM_FORMAT_FLOAT64_BE	((snd_pcm_format_t) 17) /* 8-byte float, IEEE-754 64-bit, range -1.0 to 1.0 */
  202. #define	SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE ((snd_pcm_format_t) 18) /* IEC-958 subframe, Little Endian */
  203. #define	SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE ((snd_pcm_format_t) 19) /* IEC-958 subframe, Big Endian */
  204. #define	SNDRV_PCM_FORMAT_MU_LAW		((snd_pcm_format_t) 20)
  205. #define	SNDRV_PCM_FORMAT_A_LAW		((snd_pcm_format_t) 21)
  206. #define	SNDRV_PCM_FORMAT_IMA_ADPCM	((snd_pcm_format_t) 22)
  207. #define	SNDRV_PCM_FORMAT_MPEG		((snd_pcm_format_t) 23)
  208. #define	SNDRV_PCM_FORMAT_GSM		((snd_pcm_format_t) 24)
  209. #define	SNDRV_PCM_FORMAT_S20_LE	((snd_pcm_format_t) 25) /* in four bytes, LSB justified */
  210. #define	SNDRV_PCM_FORMAT_S20_BE	((snd_pcm_format_t) 26) /* in four bytes, LSB justified */
  211. #define	SNDRV_PCM_FORMAT_U20_LE	((snd_pcm_format_t) 27) /* in four bytes, LSB justified */
  212. #define	SNDRV_PCM_FORMAT_U20_BE	((snd_pcm_format_t) 28) /* in four bytes, LSB justified */
  213. /* gap in the numbering for a future standard linear format */
  214. #define	SNDRV_PCM_FORMAT_SPECIAL	((snd_pcm_format_t) 31)
  215. #define	SNDRV_PCM_FORMAT_S24_3LE	((snd_pcm_format_t) 32)	/* in three bytes */
  216. #define	SNDRV_PCM_FORMAT_S24_3BE	((snd_pcm_format_t) 33)	/* in three bytes */
  217. #define	SNDRV_PCM_FORMAT_U24_3LE	((snd_pcm_format_t) 34)	/* in three bytes */
  218. #define	SNDRV_PCM_FORMAT_U24_3BE	((snd_pcm_format_t) 35)	/* in three bytes */
  219. #define	SNDRV_PCM_FORMAT_S20_3LE	((snd_pcm_format_t) 36)	/* in three bytes */
  220. #define	SNDRV_PCM_FORMAT_S20_3BE	((snd_pcm_format_t) 37)	/* in three bytes */
  221. #define	SNDRV_PCM_FORMAT_U20_3LE	((snd_pcm_format_t) 38)	/* in three bytes */
  222. #define	SNDRV_PCM_FORMAT_U20_3BE	((snd_pcm_format_t) 39)	/* in three bytes */
  223. #define	SNDRV_PCM_FORMAT_S18_3LE	((snd_pcm_format_t) 40)	/* in three bytes */
  224. #define	SNDRV_PCM_FORMAT_S18_3BE	((snd_pcm_format_t) 41)	/* in three bytes */
  225. #define	SNDRV_PCM_FORMAT_U18_3LE	((snd_pcm_format_t) 42)	/* in three bytes */
  226. #define	SNDRV_PCM_FORMAT_U18_3BE	((snd_pcm_format_t) 43)	/* in three bytes */
  227. #define	SNDRV_PCM_FORMAT_G723_24	((snd_pcm_format_t) 44) /* 8 samples in 3 bytes */
  228. #define	SNDRV_PCM_FORMAT_G723_24_1B	((snd_pcm_format_t) 45) /* 1 sample in 1 byte */
  229. #define	SNDRV_PCM_FORMAT_G723_40	((snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */
  230. #define	SNDRV_PCM_FORMAT_G723_40_1B	((snd_pcm_format_t) 47) /* 1 sample in 1 byte */
  231. #define	SNDRV_PCM_FORMAT_DSD_U8		((snd_pcm_format_t) 48) /* DSD, 1-byte samples DSD (x8) */
  232. #define	SNDRV_PCM_FORMAT_DSD_U16_LE	((snd_pcm_format_t) 49) /* DSD, 2-byte samples DSD (x16), little endian */
  233. #define	SNDRV_PCM_FORMAT_DSD_U32_LE	((snd_pcm_format_t) 50) /* DSD, 4-byte samples DSD (x32), little endian */
  234. #define	SNDRV_PCM_FORMAT_DSD_U16_BE	((snd_pcm_format_t) 51) /* DSD, 2-byte samples DSD (x16), big endian */
  235. #define	SNDRV_PCM_FORMAT_DSD_U32_BE	((snd_pcm_format_t) 52) /* DSD, 4-byte samples DSD (x32), big endian */
  236. #define	SNDRV_PCM_FORMAT_LAST		SNDRV_PCM_FORMAT_DSD_U32_BE
  237. #define	SNDRV_PCM_FORMAT_FIRST		SNDRV_PCM_FORMAT_S8
  239. #ifdef SNDRV_LITTLE_ENDIAN
  240. #define	SNDRV_PCM_FORMAT_S16		SNDRV_PCM_FORMAT_S16_LE
  241. #define	SNDRV_PCM_FORMAT_U16		SNDRV_PCM_FORMAT_U16_LE
  242. #define	SNDRV_PCM_FORMAT_S24		SNDRV_PCM_FORMAT_S24_LE
  243. #define	SNDRV_PCM_FORMAT_U24		SNDRV_PCM_FORMAT_U24_LE
  244. #define	SNDRV_PCM_FORMAT_S32		SNDRV_PCM_FORMAT_S32_LE
  245. #define	SNDRV_PCM_FORMAT_U32		SNDRV_PCM_FORMAT_U32_LE
  246. #define	SNDRV_PCM_FORMAT_FLOAT		SNDRV_PCM_FORMAT_FLOAT_LE
  247. #define	SNDRV_PCM_FORMAT_FLOAT64	SNDRV_PCM_FORMAT_FLOAT64_LE
  248. #define	SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE
  249. #define	SNDRV_PCM_FORMAT_S20		SNDRV_PCM_FORMAT_S20_LE
  250. #define	SNDRV_PCM_FORMAT_U20		SNDRV_PCM_FORMAT_U20_LE
  251. #endif
  252. #ifdef SNDRV_BIG_ENDIAN
  253. #define	SNDRV_PCM_FORMAT_S16		SNDRV_PCM_FORMAT_S16_BE
  254. #define	SNDRV_PCM_FORMAT_U16		SNDRV_PCM_FORMAT_U16_BE
  255. #define	SNDRV_PCM_FORMAT_S24		SNDRV_PCM_FORMAT_S24_BE
  256. #define	SNDRV_PCM_FORMAT_U24		SNDRV_PCM_FORMAT_U24_BE
  257. #define	SNDRV_PCM_FORMAT_S32		SNDRV_PCM_FORMAT_S32_BE
  258. #define	SNDRV_PCM_FORMAT_U32		SNDRV_PCM_FORMAT_U32_BE
  259. #define	SNDRV_PCM_FORMAT_FLOAT		SNDRV_PCM_FORMAT_FLOAT_BE
  260. #define	SNDRV_PCM_FORMAT_FLOAT64	SNDRV_PCM_FORMAT_FLOAT64_BE
  261. #define	SNDRV_PCM_FORMAT_IEC958_SUBFRAME SNDRV_PCM_FORMAT_IEC958_SUBFRAME_BE
  262. #define	SNDRV_PCM_FORMAT_S20		SNDRV_PCM_FORMAT_S20_BE
  263. #define	SNDRV_PCM_FORMAT_U20		SNDRV_PCM_FORMAT_U20_BE
  264. #endif
  266. typedef int __bitwise snd_pcm_subformat_t;
  267. #define	SNDRV_PCM_SUBFORMAT_STD		((snd_pcm_subformat_t) 0)
  268. #define	SNDRV_PCM_SUBFORMAT_MSBITS_MAX	((snd_pcm_subformat_t) 1)
  269. #define	SNDRV_PCM_SUBFORMAT_MSBITS_20	((snd_pcm_subformat_t) 2)
  270. #define	SNDRV_PCM_SUBFORMAT_MSBITS_24	((snd_pcm_subformat_t) 3)
  271. #define	SNDRV_PCM_SUBFORMAT_LAST	SNDRV_PCM_SUBFORMAT_MSBITS_24
  273. #define SNDRV_PCM_INFO_MMAP		0x00000001	/* hardware supports mmap */
  274. #define SNDRV_PCM_INFO_MMAP_VALID	0x00000002	/* period data are valid during transfer */
  275. #define SNDRV_PCM_INFO_DOUBLE		0x00000004	/* Double buffering needed for PCM start/stop */
  276. #define SNDRV_PCM_INFO_BATCH		0x00000010	/* double buffering */
  277. #define SNDRV_PCM_INFO_SYNC_APPLPTR	0x00000020	/* need the explicit sync of appl_ptr update */
  278. #define SNDRV_PCM_INFO_PERFECT_DRAIN	0x00000040	/* silencing at the end of stream is not required */
  279. #define SNDRV_PCM_INFO_INTERLEAVED	0x00000100	/* channels are interleaved */
  280. #define SNDRV_PCM_INFO_NONINTERLEAVED	0x00000200	/* channels are not interleaved */
  281. #define SNDRV_PCM_INFO_COMPLEX		0x00000400	/* complex frame organization (mmap only) */
  282. #define SNDRV_PCM_INFO_BLOCK_TRANSFER	0x00010000	/* hardware transfer block of samples */
  283. #define SNDRV_PCM_INFO_OVERRANGE	0x00020000	/* hardware supports ADC (capture) overrange detection */
  284. #define SNDRV_PCM_INFO_RESUME		0x00040000	/* hardware supports stream resume after suspend */
  285. #define SNDRV_PCM_INFO_PAUSE		0x00080000	/* pause ioctl is supported */
  286. #define SNDRV_PCM_INFO_HALF_DUPLEX	0x00100000	/* only half duplex */
  287. #define SNDRV_PCM_INFO_JOINT_DUPLEX	0x00200000	/* playback and capture stream are somewhat correlated */
  288. #define SNDRV_PCM_INFO_SYNC_START	0x00400000	/* pcm support some kind of sync go */
  289. #define SNDRV_PCM_INFO_NO_PERIOD_WAKEUP	0x00800000	/* period wakeup can be disabled */
  290. #define SNDRV_PCM_INFO_HAS_WALL_CLOCK   0x01000000      /* (Deprecated)has audio wall clock for audio/system time sync */
  291. #define SNDRV_PCM_INFO_HAS_LINK_ATIME              0x01000000  /* report hardware link audio time, reset on startup */
  292. #define SNDRV_PCM_INFO_HAS_LINK_ABSOLUTE_ATIME     0x02000000  /* report absolute hardware link audio time, not reset on startup */
  293. #define SNDRV_PCM_INFO_HAS_LINK_ESTIMATED_ATIME    0x04000000  /* report estimated link audio time */
  294. #define SNDRV_PCM_INFO_HAS_LINK_SYNCHRONIZED_ATIME 0x08000000  /* report synchronized audio/system time */
  295. #define SNDRV_PCM_INFO_EXPLICIT_SYNC	0x10000000	/* needs explicit sync of pointers and data */
  296. #define SNDRV_PCM_INFO_NO_REWINDS	0x20000000	/* hardware can only support monotonic changes of appl_ptr */
  297. #define SNDRV_PCM_INFO_DRAIN_TRIGGER	0x40000000		/* internal kernel flag - trigger in drain */
  298. #define SNDRV_PCM_INFO_FIFO_IN_FRAMES	0x80000000	/* internal kernel flag - FIFO size is in frames */
  300. #if (__BITS_PER_LONG == 32 && defined(__USE_TIME_BITS64)) || defined __KERNEL__
  301. #define __SND_STRUCT_TIME64
  302. #endif
  304. typedef int __bitwise snd_pcm_state_t;
  305. #define	SNDRV_PCM_STATE_OPEN		((snd_pcm_state_t) 0) /* stream is open */
  306. #define	SNDRV_PCM_STATE_SETUP		((snd_pcm_state_t) 1) /* stream has a setup */
  307. #define	SNDRV_PCM_STATE_PREPARED	((snd_pcm_state_t) 2) /* stream is ready to start */
  308. #define	SNDRV_PCM_STATE_RUNNING		((snd_pcm_state_t) 3) /* stream is running */
  309. #define	SNDRV_PCM_STATE_XRUN		((snd_pcm_state_t) 4) /* stream reached an xrun */
  310. #define	SNDRV_PCM_STATE_DRAINING	((snd_pcm_state_t) 5) /* stream is draining */
  311. #define	SNDRV_PCM_STATE_PAUSED		((snd_pcm_state_t) 6) /* stream is paused */
  312. #define	SNDRV_PCM_STATE_SUSPENDED	((snd_pcm_state_t) 7) /* hardware is suspended */
  313. #define	SNDRV_PCM_STATE_DISCONNECTED	((snd_pcm_state_t) 8) /* hardware is disconnected */
  314. #define	SNDRV_PCM_STATE_LAST		SNDRV_PCM_STATE_DISCONNECTED
  316. enum {
  317. 	SNDRV_PCM_MMAP_OFFSET_DATA = 0x00000000,
  318. 	SNDRV_PCM_MMAP_OFFSET_STATUS_OLD = 0x80000000,
  319. 	SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD = 0x81000000,
  320. 	SNDRV_PCM_MMAP_OFFSET_STATUS_NEW = 0x82000000,
  321. 	SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW = 0x83000000,
  322. #ifdef __SND_STRUCT_TIME64
  323. 	SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_NEW,
  324. 	SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_NEW,
  325. #else
  326. 	SNDRV_PCM_MMAP_OFFSET_STATUS = SNDRV_PCM_MMAP_OFFSET_STATUS_OLD,
  327. 	SNDRV_PCM_MMAP_OFFSET_CONTROL = SNDRV_PCM_MMAP_OFFSET_CONTROL_OLD,
  328. #endif
  329. };
  331. union snd_pcm_sync_id {
  332. 	unsigned char id[16];
  333. 	unsigned short id16[8];
  334. 	unsigned int id32[4];
  335. } __attribute__((deprecated));
  337. struct snd_pcm_info {
  338. 	unsigned int device;		/* RO/WR (control): device number */
  339. 	unsigned int subdevice;		/* RO/WR (control): subdevice number */
  340. 	int stream;			/* RO/WR (control): stream direction */
  341. 	int card;			/* R: card number */
  342. 	unsigned char id[64];		/* ID (user selectable) */
  343. 	unsigned char name[80];		/* name of this device */
  344. 	unsigned char subname[32];	/* subdevice name */
  345. 	int dev_class;			/* SNDRV_PCM_CLASS_* */
  346. 	int dev_subclass;		/* SNDRV_PCM_SUBCLASS_* */
  347. 	unsigned int subdevices_count;
  348. 	unsigned int subdevices_avail;
  349. 	unsigned char pad1[16];		/* was: hardware synchronization ID */
  350. 	unsigned char reserved[64];	/* reserved for future... */
  351. };
  353. typedef int snd_pcm_hw_param_t;
  354. #define	SNDRV_PCM_HW_PARAM_ACCESS	0	/* Access type */
  355. #define	SNDRV_PCM_HW_PARAM_FORMAT	1	/* Format */
  356. #define	SNDRV_PCM_HW_PARAM_SUBFORMAT	2	/* Subformat */
  357. #define	SNDRV_PCM_HW_PARAM_FIRST_MASK	SNDRV_PCM_HW_PARAM_ACCESS
  358. #define	SNDRV_PCM_HW_PARAM_LAST_MASK	SNDRV_PCM_HW_PARAM_SUBFORMAT
  360. #define	SNDRV_PCM_HW_PARAM_SAMPLE_BITS	8	/* Bits per sample */
  361. #define	SNDRV_PCM_HW_PARAM_FRAME_BITS	9	/* Bits per frame */
  362. #define	SNDRV_PCM_HW_PARAM_CHANNELS	10	/* Channels */
  363. #define	SNDRV_PCM_HW_PARAM_RATE		11	/* Approx rate */
  364. #define	SNDRV_PCM_HW_PARAM_PERIOD_TIME	12	/* Approx distance between
  365. 						 * interrupts in us
  366. 						 */
  367. #define	SNDRV_PCM_HW_PARAM_PERIOD_SIZE	13	/* Approx frames between
  368. 						 * interrupts
  369. 						 */
  370. #define	SNDRV_PCM_HW_PARAM_PERIOD_BYTES	14	/* Approx bytes between
  371. 						 * interrupts
  372. 						 */
  373. #define	SNDRV_PCM_HW_PARAM_PERIODS	15	/* Approx interrupts per
  374. 						 * buffer
  375. 						 */
  376. #define	SNDRV_PCM_HW_PARAM_BUFFER_TIME	16	/* Approx duration of buffer
  377. 						 * in us
  378. 						 */
  379. #define	SNDRV_PCM_HW_PARAM_BUFFER_SIZE	17	/* Size of buffer in frames */
  380. #define	SNDRV_PCM_HW_PARAM_BUFFER_BYTES	18	/* Size of buffer in bytes */
  381. #define	SNDRV_PCM_HW_PARAM_TICK_TIME	19	/* Approx tick duration in us */
  382. #define	SNDRV_PCM_HW_PARAM_FIRST_INTERVAL	SNDRV_PCM_HW_PARAM_SAMPLE_BITS
  383. #define	SNDRV_PCM_HW_PARAM_LAST_INTERVAL	SNDRV_PCM_HW_PARAM_TICK_TIME
  385. #define SNDRV_PCM_HW_PARAMS_NORESAMPLE	(1<<0)	/* avoid rate resampling */
  386. #define SNDRV_PCM_HW_PARAMS_EXPORT_BUFFER	(1<<1)	/* export buffer */
  387. #define SNDRV_PCM_HW_PARAMS_NO_PERIOD_WAKEUP	(1<<2)	/* disable period wakeups */
  388. #define SNDRV_PCM_HW_PARAMS_NO_DRAIN_SILENCE	(1<<3)	/* suppress drain with the filling
  389. 							 * of the silence samples
  390. 							 */
  392. struct snd_interval {
  393. 	unsigned int min, max;
  394. 	unsigned int openmin:1,
  395. 		     openmax:1,
  396. 		     integer:1,
  397. 		     empty:1;
  398. };
  400. #define SNDRV_MASK_MAX	256
  402. struct snd_mask {
  403. 	__u32 bits[(SNDRV_MASK_MAX+31)/32];
  404. };
  406. struct snd_pcm_hw_params {
  407. 	unsigned int flags;
  408. 	struct snd_mask masks[SNDRV_PCM_HW_PARAM_LAST_MASK -
  409. 			       SNDRV_PCM_HW_PARAM_FIRST_MASK + 1];
  410. 	struct snd_mask mres[5];	/* reserved masks */
  411. 	struct snd_interval intervals[SNDRV_PCM_HW_PARAM_LAST_INTERVAL -
  412. 				        SNDRV_PCM_HW_PARAM_FIRST_INTERVAL + 1];
  413. 	struct snd_interval ires[9];	/* reserved intervals */
  414. 	unsigned int rmask;		/* W: requested masks */
  415. 	unsigned int cmask;		/* R: changed masks */
  416. 	unsigned int info;		/* R: Info flags for returned setup */
  417. 	unsigned int msbits;		/* R: used most significant bits (in sample bit-width) */
  418. 	unsigned int rate_num;		/* R: rate numerator */
  419. 	unsigned int rate_den;		/* R: rate denominator */
  420. 	snd_pcm_uframes_t fifo_size;	/* R: chip FIFO size in frames */
  421. 	unsigned char sync[16];		/* R: synchronization ID (perfect sync - one clock source) */
  422. 	unsigned char reserved[48];	/* reserved for future */
  423. };
  425. enum {
  426. 	SNDRV_PCM_TSTAMP_NONE = 0,
  427. 	SNDRV_PCM_TSTAMP_ENABLE,
  428. 	SNDRV_PCM_TSTAMP_LAST = SNDRV_PCM_TSTAMP_ENABLE,
  429. };
  431. struct snd_pcm_sw_params {
  432. 	int tstamp_mode;			/* timestamp mode */
  433. 	unsigned int period_step;
  434. 	unsigned int sleep_min;			/* min ticks to sleep */
  435. 	snd_pcm_uframes_t avail_min;		/* min avail frames for wakeup */
  436. 	snd_pcm_uframes_t xfer_align;		/* obsolete: xfer size need to be a multiple */
  437. 	snd_pcm_uframes_t start_threshold;	/* min hw_avail frames for automatic start */
  438. 	/*
  439. 	 * The following two thresholds alleviate playback buffer underruns; when
  440. 	 * hw_avail drops below the threshold, the respective action is triggered:
  441. 	 */
  442. 	snd_pcm_uframes_t stop_threshold;	/* - stop playback */
  443. 	snd_pcm_uframes_t silence_threshold;	/* - pre-fill buffer with silence */
  444. 	snd_pcm_uframes_t silence_size;		/* max size of silence pre-fill; when >= boundary,
  445. 						 * fill played area with silence immediately */
  446. 	snd_pcm_uframes_t boundary;		/* pointers wrap point */
  447. 	unsigned int proto;			/* protocol version */
  448. 	unsigned int tstamp_type;		/* timestamp type (req. proto >= 2.0.12) */
  449. 	unsigned char reserved[56];		/* reserved for future */
  450. };
  452. struct snd_pcm_channel_info {
  453. 	unsigned int channel;
  454. 	__kernel_off_t offset;		/* mmap offset */
  455. 	unsigned int first;		/* offset to first sample in bits */
  456. 	unsigned int step;		/* samples distance in bits */
  457. };
  459. enum {
  460. 	/*
  461. 	 *  first definition for backwards compatibility only,
  462. 	 *  maps to wallclock/link time for HDAudio playback and DEFAULT/DMA time for everything else
  463. 	 */
  464. 	SNDRV_PCM_AUDIO_TSTAMP_TYPE_COMPAT = 0,
  466. 	/* timestamp definitions */
  467. 	SNDRV_PCM_AUDIO_TSTAMP_TYPE_DEFAULT = 1,           /* DMA time, reported as per hw_ptr */
  468. 	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK = 2,	           /* link time reported by sample or wallclock counter, reset on startup */
  469. 	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ABSOLUTE = 3,	   /* link time reported by sample or wallclock counter, not reset on startup */
  470. 	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_ESTIMATED = 4,    /* link time estimated indirectly */
  471. 	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED = 5, /* link time synchronized with system time */
  472. 	SNDRV_PCM_AUDIO_TSTAMP_TYPE_LAST = SNDRV_PCM_AUDIO_TSTAMP_TYPE_LINK_SYNCHRONIZED
  473. };
  475. /* explicit padding avoids incompatibility between i386 and x86-64 */
  476. typedef struct { unsigned char pad[sizeof(time_t) - sizeof(int)]; } __time_pad;
  478. struct snd_pcm_status {
  479. 	snd_pcm_state_t state;		/* stream state */
  480. 	__time_pad pad1;		/* align to timespec */
  481. 	struct timespec trigger_tstamp;	/* time when stream was started/stopped/paused */
  482. 	struct timespec tstamp;		/* reference timestamp */
  483. 	snd_pcm_uframes_t appl_ptr;	/* appl ptr */
  484. 	snd_pcm_uframes_t hw_ptr;	/* hw ptr */
  485. 	snd_pcm_sframes_t delay;	/* current delay in frames */
  486. 	snd_pcm_uframes_t avail;	/* number of frames available */
  487. 	snd_pcm_uframes_t avail_max;	/* max frames available on hw since last status */
  488. 	snd_pcm_uframes_t overrange;	/* count of ADC (capture) overrange detections from last status */
  489. 	snd_pcm_state_t suspended_state; /* suspended stream state */
  490. 	__u32 audio_tstamp_data;	 /* needed for 64-bit alignment, used for configs/report to/from userspace */
  491. 	struct timespec audio_tstamp;	/* sample counter, wall clock, PHC or on-demand sync'ed */
  492. 	struct timespec driver_tstamp;	/* useful in case reference system tstamp is reported with delay */
  493. 	__u32 audio_tstamp_accuracy;	/* in ns units, only valid if indicated in audio_tstamp_data */
  494. 	unsigned char reserved[52-2*sizeof(struct timespec)]; /* must be filled with zero */
  495. };
  497. /*
  498.  * For mmap operations, we need the 64-bit layout, both for compat mode,
  499.  * and for y2038 compatibility. For 64-bit applications, the two definitions
  500.  * are identical, so we keep the traditional version.
  501.  */
  502. #ifdef __SND_STRUCT_TIME64
  503. #define __snd_pcm_mmap_status64		snd_pcm_mmap_status
  504. #define __snd_pcm_mmap_control64	snd_pcm_mmap_control
  505. #define __snd_pcm_sync_ptr64		snd_pcm_sync_ptr
  506. #define __snd_timespec64		timespec
  507. struct __snd_timespec {
  508. 	__s32 tv_sec;
  509. 	__s32 tv_nsec;
  510. };
  511. #else
  512. #define __snd_pcm_mmap_status		snd_pcm_mmap_status
  513. #define __snd_pcm_mmap_control		snd_pcm_mmap_control
  514. #define __snd_pcm_sync_ptr		snd_pcm_sync_ptr
  515. #define __snd_timespec			timespec
  516. struct __snd_timespec64 {
  517. 	__s64 tv_sec;
  518. 	__s64 tv_nsec;
  519. };
  521. #endif
  523. struct __snd_pcm_mmap_status {
  524. 	snd_pcm_state_t state;		/* RO: state - SNDRV_PCM_STATE_XXXX */
  525. 	int pad1;			/* Needed for 64 bit alignment */
  526. 	snd_pcm_uframes_t hw_ptr;	/* RO: hw ptr (0...boundary-1) */
  527. 	struct __snd_timespec tstamp;	/* Timestamp */
  528. 	snd_pcm_state_t suspended_state; /* RO: suspended stream state */
  529. 	struct __snd_timespec audio_tstamp; /* from sample counter or wall clock */
  530. };
  532. struct __snd_pcm_mmap_control {
  533. 	snd_pcm_uframes_t appl_ptr;	/* RW: appl ptr (0...boundary-1) */
  534. 	snd_pcm_uframes_t avail_min;	/* RW: min available frames for wakeup */
  535. };
  537. #define SNDRV_PCM_SYNC_PTR_HWSYNC	(1<<0)	/* execute hwsync */
  538. #define SNDRV_PCM_SYNC_PTR_APPL		(1<<1)	/* get appl_ptr from driver (r/w op) */
  539. #define SNDRV_PCM_SYNC_PTR_AVAIL_MIN	(1<<2)	/* get avail_min from driver */
  541. struct __snd_pcm_sync_ptr {
  542. 	unsigned int flags;
  543. 	union {
  544. 		struct __snd_pcm_mmap_status status;
  545. 		unsigned char reserved[64];
  546. 	} s;
  547. 	union {
  548. 		struct __snd_pcm_mmap_control control;
  549. 		unsigned char reserved[64];
  550. 	} c;
  551. };
  553. #if __BITS_PER_LONG == 32
  554. #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __BIG_ENDIAN : defined(__BIG_ENDIAN)
  555. #define __PAD_BEFORE_UFRAME(x) char x[sizeof(__u64) - sizeof(snd_pcm_uframes_t)];
  556. #endif
  558. #if defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN)
  559. #define __PAD_AFTER_UFRAME(x) char x[sizeof(__u64) - sizeof(snd_pcm_uframes_t)];
  560. #endif
  561. #endif
  563. #ifndef __PAD_BEFORE_UFRAME
  564. #define __PAD_BEFORE_UFRAME(x)
  565. #endif
  567. #ifndef __PAD_AFTER_UFRAME
  568. #define __PAD_AFTER_UFRAME(x)
  569. #endif
  571. struct __snd_pcm_mmap_status64 {
  572. 	snd_pcm_state_t state;		/* RO: state - SNDRV_PCM_STATE_XXXX */
  573. 	__u32 pad1;			/* Needed for 64 bit alignment */
  574. 	__PAD_BEFORE_UFRAME(__pad1)
  575. 	snd_pcm_uframes_t hw_ptr;	/* RO: hw ptr (0...boundary-1) */
  576. 	__PAD_AFTER_UFRAME(__pad2)
  577. 	struct __snd_timespec64 tstamp;	/* Timestamp */
  578. 	snd_pcm_state_t suspended_state;/* RO: suspended stream state */
  579. 	__u32 pad3;			/* Needed for 64 bit alignment */
  580. 	struct __snd_timespec64 audio_tstamp; /* sample counter or wall clock */
  581. };
  583. struct __snd_pcm_mmap_control64 {
  584. 	__PAD_BEFORE_UFRAME(__pad1)
  585. 	snd_pcm_uframes_t appl_ptr;	 /* RW: appl ptr (0...boundary-1) */
  586. 	__PAD_BEFORE_UFRAME(__pad2)	 // This should be __pad_after_uframe, but binary
  587. 					 // backwards compatibility constraints prevent a fix.
  589. 	__PAD_BEFORE_UFRAME(__pad3)
  590. 	snd_pcm_uframes_t  avail_min;	 /* RW: min available frames for wakeup */
  591. 	__PAD_AFTER_UFRAME(__pad4)
  592. };
  594. #undef __PAD_BEFORE_UFRAME
  595. #undef __PAD_AFTER_UFRAME
  597. struct __snd_pcm_sync_ptr64 {
  598. 	__u32 flags;
  599. 	__u32 pad1;
  600. 	union {
  601. 		struct __snd_pcm_mmap_status64 status;
  602. 		unsigned char reserved[64];
  603. 	} s;
  604. 	union {
  605. 		struct __snd_pcm_mmap_control64 control;
  606. 		unsigned char reserved[64];
  607. 	} c;
  608. };
  610. struct snd_xferi {
  611. 	snd_pcm_sframes_t result;
  612. 	void *buf;
  613. 	snd_pcm_uframes_t frames;
  614. };
  616. struct snd_xfern {
  617. 	snd_pcm_sframes_t result;
  618. 	void * *bufs;
  619. 	snd_pcm_uframes_t frames;
  620. };
  622. enum {
  623. 	SNDRV_PCM_TSTAMP_TYPE_GETTIMEOFDAY = 0,	/* gettimeofday equivalent */
  624. 	SNDRV_PCM_TSTAMP_TYPE_MONOTONIC,	/* posix_clock_monotonic equivalent */
  625. 	SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,    /* monotonic_raw (no NTP) */
  626. 	SNDRV_PCM_TSTAMP_TYPE_LAST = SNDRV_PCM_TSTAMP_TYPE_MONOTONIC_RAW,
  627. };
  629. /* channel positions */
  630. enum {
  631. 	SNDRV_CHMAP_UNKNOWN = 0,
  632. 	SNDRV_CHMAP_NA,		/* N/A, silent */
  633. 	SNDRV_CHMAP_MONO,	/* mono stream */
  634. 	/* this follows the alsa-lib mixer channel value + 3 */
  635. 	SNDRV_CHMAP_FL,		/* front left */
  636. 	SNDRV_CHMAP_FR,		/* front right */
  637. 	SNDRV_CHMAP_RL,		/* rear left */
  638. 	SNDRV_CHMAP_RR,		/* rear right */
  639. 	SNDRV_CHMAP_FC,		/* front center */
  640. 	SNDRV_CHMAP_LFE,	/* LFE */
  641. 	SNDRV_CHMAP_SL,		/* side left */
  642. 	SNDRV_CHMAP_SR,		/* side right */
  643. 	SNDRV_CHMAP_RC,		/* rear center */
  644. 	/* new definitions */
  645. 	SNDRV_CHMAP_FLC,	/* front left center */
  646. 	SNDRV_CHMAP_FRC,	/* front right center */
  647. 	SNDRV_CHMAP_RLC,	/* rear left center */
  648. 	SNDRV_CHMAP_RRC,	/* rear right center */
  649. 	SNDRV_CHMAP_FLW,	/* front left wide */
  650. 	SNDRV_CHMAP_FRW,	/* front right wide */
  651. 	SNDRV_CHMAP_FLH,	/* front left high */
  652. 	SNDRV_CHMAP_FCH,	/* front center high */
  653. 	SNDRV_CHMAP_FRH,	/* front right high */
  654. 	SNDRV_CHMAP_TC,		/* top center */
  655. 	SNDRV_CHMAP_TFL,	/* top front left */
  656. 	SNDRV_CHMAP_TFR,	/* top front right */
  657. 	SNDRV_CHMAP_TFC,	/* top front center */
  658. 	SNDRV_CHMAP_TRL,	/* top rear left */
  659. 	SNDRV_CHMAP_TRR,	/* top rear right */
  660. 	SNDRV_CHMAP_TRC,	/* top rear center */
  661. 	/* new definitions for UAC2 */
  662. 	SNDRV_CHMAP_TFLC,	/* top front left center */
  663. 	SNDRV_CHMAP_TFRC,	/* top front right center */
  664. 	SNDRV_CHMAP_TSL,	/* top side left */
  665. 	SNDRV_CHMAP_TSR,	/* top side right */
  666. 	SNDRV_CHMAP_LLFE,	/* left LFE */
  667. 	SNDRV_CHMAP_RLFE,	/* right LFE */
  668. 	SNDRV_CHMAP_BC,		/* bottom center */
  669. 	SNDRV_CHMAP_BLC,	/* bottom left center */
  670. 	SNDRV_CHMAP_BRC,	/* bottom right center */
  671. 	SNDRV_CHMAP_LAST = SNDRV_CHMAP_BRC,
  672. };
  674. #define SNDRV_CHMAP_POSITION_MASK	0xffff
  675. #define SNDRV_CHMAP_PHASE_INVERSE	(0x01 << 16)
  676. #define SNDRV_CHMAP_DRIVER_SPEC		(0x02 << 16)
  678. #define SNDRV_PCM_IOCTL_PVERSION	_IOR('A', 0x00, int)
  679. #define SNDRV_PCM_IOCTL_INFO		_IOR('A', 0x01, struct snd_pcm_info)
  680. #define SNDRV_PCM_IOCTL_TSTAMP		_IOW('A', 0x02, int)
  681. #define SNDRV_PCM_IOCTL_TTSTAMP		_IOW('A', 0x03, int)
  682. #define SNDRV_PCM_IOCTL_USER_PVERSION	_IOW('A', 0x04, int)
  683. #define SNDRV_PCM_IOCTL_HW_REFINE	_IOWR('A', 0x10, struct snd_pcm_hw_params)
  684. #define SNDRV_PCM_IOCTL_HW_PARAMS	_IOWR('A', 0x11, struct snd_pcm_hw_params)
  685. #define SNDRV_PCM_IOCTL_HW_FREE		_IO('A', 0x12)
  686. #define SNDRV_PCM_IOCTL_SW_PARAMS	_IOWR('A', 0x13, struct snd_pcm_sw_params)
  687. #define SNDRV_PCM_IOCTL_STATUS		_IOR('A', 0x20, struct snd_pcm_status)
  688. #define SNDRV_PCM_IOCTL_DELAY		_IOR('A', 0x21, snd_pcm_sframes_t)
  689. #define SNDRV_PCM_IOCTL_HWSYNC		_IO('A', 0x22)
  690. #define __SNDRV_PCM_IOCTL_SYNC_PTR	_IOWR('A', 0x23, struct __snd_pcm_sync_ptr)
  691. #define __SNDRV_PCM_IOCTL_SYNC_PTR64	_IOWR('A', 0x23, struct __snd_pcm_sync_ptr64)
  692. #define SNDRV_PCM_IOCTL_SYNC_PTR	_IOWR('A', 0x23, struct snd_pcm_sync_ptr)
  693. #define SNDRV_PCM_IOCTL_STATUS_EXT	_IOWR('A', 0x24, struct snd_pcm_status)
  694. #define SNDRV_PCM_IOCTL_CHANNEL_INFO	_IOR('A', 0x32, struct snd_pcm_channel_info)
  695. #define SNDRV_PCM_IOCTL_PREPARE		_IO('A', 0x40)
  696. #define SNDRV_PCM_IOCTL_RESET		_IO('A', 0x41)
  697. #define SNDRV_PCM_IOCTL_START		_IO('A', 0x42)
  698. #define SNDRV_PCM_IOCTL_DROP		_IO('A', 0x43)
  699. #define SNDRV_PCM_IOCTL_DRAIN		_IO('A', 0x44)
  700. #define SNDRV_PCM_IOCTL_PAUSE		_IOW('A', 0x45, int)
  701. #define SNDRV_PCM_IOCTL_REWIND		_IOW('A', 0x46, snd_pcm_uframes_t)
  702. #define SNDRV_PCM_IOCTL_RESUME		_IO('A', 0x47)
  703. #define SNDRV_PCM_IOCTL_XRUN		_IO('A', 0x48)
  704. #define SNDRV_PCM_IOCTL_FORWARD		_IOW('A', 0x49, snd_pcm_uframes_t)
  705. #define SNDRV_PCM_IOCTL_WRITEI_FRAMES	_IOW('A', 0x50, struct snd_xferi)
  706. #define SNDRV_PCM_IOCTL_READI_FRAMES	_IOR('A', 0x51, struct snd_xferi)
  707. #define SNDRV_PCM_IOCTL_WRITEN_FRAMES	_IOW('A', 0x52, struct snd_xfern)
  708. #define SNDRV_PCM_IOCTL_READN_FRAMES	_IOR('A', 0x53, struct snd_xfern)
  709. #define SNDRV_PCM_IOCTL_LINK		_IOW('A', 0x60, int)
  710. #define SNDRV_PCM_IOCTL_UNLINK		_IO('A', 0x61)
  712. /*****************************************************************************
  713.  *                                                                           *
  714.  *                            MIDI v1.0 interface                            *
  715.  *                                                                           *
  716.  *****************************************************************************/
  718. /*
  719.  *  Raw MIDI section - /dev/snd/midi??
  720.  */
  722. #define SNDRV_RAWMIDI_VERSION		SNDRV_PROTOCOL_VERSION(2, 0, 4)
  724. enum {
  725. 	SNDRV_RAWMIDI_STREAM_OUTPUT = 0,
  726. 	SNDRV_RAWMIDI_STREAM_INPUT,
  727. 	SNDRV_RAWMIDI_STREAM_LAST = SNDRV_RAWMIDI_STREAM_INPUT,
  728. };
  730. #define SNDRV_RAWMIDI_INFO_OUTPUT		0x00000001
  731. #define SNDRV_RAWMIDI_INFO_INPUT		0x00000002
  732. #define SNDRV_RAWMIDI_INFO_DUPLEX		0x00000004
  733. #define SNDRV_RAWMIDI_INFO_UMP			0x00000008
  735. struct snd_rawmidi_info {
  736. 	unsigned int device;		/* RO/WR (control): device number */
  737. 	unsigned int subdevice;		/* RO/WR (control): subdevice number */
  738. 	int stream;			/* WR: stream */
  739. 	int card;			/* R: card number */
  740. 	unsigned int flags;		/* SNDRV_RAWMIDI_INFO_XXXX */
  741. 	unsigned char id[64];		/* ID (user selectable) */
  742. 	unsigned char name[80];		/* name of device */
  743. 	unsigned char subname[32];	/* name of active or selected subdevice */
  744. 	unsigned int subdevices_count;
  745. 	unsigned int subdevices_avail;
  746. 	unsigned char reserved[64];	/* reserved for future use */
  747. };
  749. #define SNDRV_RAWMIDI_MODE_FRAMING_MASK		(7<<0)
  750. #define SNDRV_RAWMIDI_MODE_FRAMING_SHIFT	0
  751. #define SNDRV_RAWMIDI_MODE_FRAMING_NONE		(0<<0)
  752. #define SNDRV_RAWMIDI_MODE_FRAMING_TSTAMP	(1<<0)
  753. #define SNDRV_RAWMIDI_MODE_CLOCK_MASK		(7<<3)
  754. #define SNDRV_RAWMIDI_MODE_CLOCK_SHIFT		3
  755. #define SNDRV_RAWMIDI_MODE_CLOCK_NONE		(0<<3)
  756. #define SNDRV_RAWMIDI_MODE_CLOCK_REALTIME	(1<<3)
  757. #define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC	(2<<3)
  758. #define SNDRV_RAWMIDI_MODE_CLOCK_MONOTONIC_RAW	(3<<3)
  760. #define SNDRV_RAWMIDI_FRAMING_DATA_LENGTH 16
  762. struct snd_rawmidi_framing_tstamp {
  763. 	/* For now, frame_type is always 0. Midi 2.0 is expected to add new
  764. 	 * types here. Applications are expected to skip unknown frame types.
  765. 	 */
  766. 	__u8 frame_type;
  767. 	__u8 length; /* number of valid bytes in data field */
  768. 	__u8 reserved[2];
  769. 	__u32 tv_nsec;		/* nanoseconds */
  770. 	__u64 tv_sec;		/* seconds */
  771. 	__u8 data[SNDRV_RAWMIDI_FRAMING_DATA_LENGTH];
  772. } __attribute__((packed));
  774. struct snd_rawmidi_params {
  775. 	int stream;
  776. 	size_t buffer_size;		/* queue size in bytes */
  777. 	size_t avail_min;		/* minimum avail bytes for wakeup */
  778. 	unsigned int no_active_sensing: 1; /* do not send active sensing byte in close() */
  779. 	unsigned int mode;		/* For input data only, frame incoming data */
  780. 	unsigned char reserved[12];	/* reserved for future use */
  781. };
  783. struct snd_rawmidi_status {
  784. 	int stream;
  785. 	__time_pad pad1;
  786. 	struct timespec tstamp;		/* Timestamp */
  787. 	size_t avail;			/* available bytes */
  788. 	size_t xruns;			/* count of overruns since last status (in bytes) */
  789. 	unsigned char reserved[16];	/* reserved for future use */
  790. };
  792. /* UMP EP info flags */
  793. #define SNDRV_UMP_EP_INFO_STATIC_BLOCKS		0x01
  795. /* UMP EP Protocol / JRTS capability bits */
  796. #define SNDRV_UMP_EP_INFO_PROTO_MIDI_MASK	0x0300
  797. #define SNDRV_UMP_EP_INFO_PROTO_MIDI1		0x0100 /* MIDI 1.0 */
  798. #define SNDRV_UMP_EP_INFO_PROTO_MIDI2		0x0200 /* MIDI 2.0 */
  799. #define SNDRV_UMP_EP_INFO_PROTO_JRTS_MASK	0x0003
  800. #define SNDRV_UMP_EP_INFO_PROTO_JRTS_TX		0x0001 /* JRTS Transmit */
  801. #define SNDRV_UMP_EP_INFO_PROTO_JRTS_RX		0x0002 /* JRTS Receive */
  803. /* UMP Endpoint information */
  804. struct snd_ump_endpoint_info {
  805. 	int card;			/* card number */
  806. 	int device;			/* device number */
  807. 	unsigned int flags;		/* additional info */
  808. 	unsigned int protocol_caps;	/* protocol capabilities */
  809. 	unsigned int protocol;		/* current protocol */
  810. 	unsigned int num_blocks;	/* # of function blocks */
  811. 	unsigned short version;		/* UMP major/minor version */
  812. 	unsigned short family_id;	/* MIDI device family ID */
  813. 	unsigned short model_id;	/* MIDI family model ID */
  814. 	unsigned int manufacturer_id;	/* MIDI manufacturer ID */
  815. 	unsigned char sw_revision[4];	/* software revision */
  816. 	unsigned short padding;
  817. 	unsigned char name[128];	/* endpoint name string */
  818. 	unsigned char product_id[128];	/* unique product id string */
  819. 	unsigned char reserved[32];
  820. } __attribute__((packed));
  822. /* UMP direction */
  823. #define SNDRV_UMP_DIR_INPUT		0x01
  824. #define SNDRV_UMP_DIR_OUTPUT		0x02
  825. #define SNDRV_UMP_DIR_BIDIRECTION	0x03
  827. /* UMP block info flags */
  828. #define SNDRV_UMP_BLOCK_IS_MIDI1	(1U << 0) /* MIDI 1.0 port w/o restrict */
  829. #define SNDRV_UMP_BLOCK_IS_LOWSPEED	(1U << 1) /* 31.25Kbps B/W MIDI1 port */
  831. /* UMP block user-interface hint */
  832. #define SNDRV_UMP_BLOCK_UI_HINT_UNKNOWN		0x00
  833. #define SNDRV_UMP_BLOCK_UI_HINT_RECEIVER	0x01
  834. #define SNDRV_UMP_BLOCK_UI_HINT_SENDER		0x02
  835. #define SNDRV_UMP_BLOCK_UI_HINT_BOTH		0x03
  837. /* UMP groups and blocks */
  838. #define SNDRV_UMP_MAX_GROUPS		16
  839. #define SNDRV_UMP_MAX_BLOCKS		32
  841. /* UMP Block information */
  842. struct snd_ump_block_info {
  843. 	int card;			/* card number */
  844. 	int device;			/* device number */
  845. 	unsigned char block_id;		/* block ID (R/W) */
  846. 	unsigned char direction;	/* UMP direction */
  847. 	unsigned char active;		/* Activeness */
  848. 	unsigned char first_group;	/* first group ID */
  849. 	unsigned char num_groups;	/* number of groups */
  850. 	unsigned char midi_ci_version;	/* MIDI-CI support version */
  851. 	unsigned char sysex8_streams;	/* max number of sysex8 streams */
  852. 	unsigned char ui_hint;		/* user interface hint */
  853. 	unsigned int flags;		/* various info flags */
  854. 	unsigned char name[128];	/* block name string */
  855. 	unsigned char reserved[32];
  856. } __attribute__((packed));
  858. #define SNDRV_RAWMIDI_IOCTL_PVERSION	_IOR('W', 0x00, int)
  859. #define SNDRV_RAWMIDI_IOCTL_INFO	_IOR('W', 0x01, struct snd_rawmidi_info)
  860. #define SNDRV_RAWMIDI_IOCTL_USER_PVERSION _IOW('W', 0x02, int)
  861. #define SNDRV_RAWMIDI_IOCTL_PARAMS	_IOWR('W', 0x10, struct snd_rawmidi_params)
  862. #define SNDRV_RAWMIDI_IOCTL_STATUS	_IOWR('W', 0x20, struct snd_rawmidi_status)
  863. #define SNDRV_RAWMIDI_IOCTL_DROP	_IOW('W', 0x30, int)
  864. #define SNDRV_RAWMIDI_IOCTL_DRAIN	_IOW('W', 0x31, int)
  865. /* Additional ioctls for UMP rawmidi devices */
  866. #define SNDRV_UMP_IOCTL_ENDPOINT_INFO	_IOR('W', 0x40, struct snd_ump_endpoint_info)
  867. #define SNDRV_UMP_IOCTL_BLOCK_INFO	_IOR('W', 0x41, struct snd_ump_block_info)
  869. /*
  870.  *  Timer section - /dev/snd/timer
  871.  */
  873. #define SNDRV_TIMER_VERSION		SNDRV_PROTOCOL_VERSION(2, 0, 8)
  875. enum {
  876. 	SNDRV_TIMER_CLASS_NONE = -1,
  877. 	SNDRV_TIMER_CLASS_SLAVE = 0,
  878. 	SNDRV_TIMER_CLASS_GLOBAL,
  879. 	SNDRV_TIMER_CLASS_CARD,
  880. 	SNDRV_TIMER_CLASS_PCM,
  881. 	SNDRV_TIMER_CLASS_LAST = SNDRV_TIMER_CLASS_PCM,
  882. };
  884. /* slave timer classes */
  885. enum {
  886. 	SNDRV_TIMER_SCLASS_NONE = 0,
  887. 	SNDRV_TIMER_SCLASS_APPLICATION,
  888. 	SNDRV_TIMER_SCLASS_SEQUENCER,		/* alias */
  889. 	SNDRV_TIMER_SCLASS_OSS_SEQUENCER,	/* alias */
  890. 	SNDRV_TIMER_SCLASS_LAST = SNDRV_TIMER_SCLASS_OSS_SEQUENCER,
  891. };
  893. /* global timers (device member) */
  894. #define SNDRV_TIMER_GLOBAL_SYSTEM	0
  895. #define SNDRV_TIMER_GLOBAL_RTC		1	/* unused */
  896. #define SNDRV_TIMER_GLOBAL_HPET		2
  897. #define SNDRV_TIMER_GLOBAL_HRTIMER	3
  898. #define SNDRV_TIMER_GLOBAL_UDRIVEN	4
  900. /* info flags */
  901. #define SNDRV_TIMER_FLG_SLAVE		(1<<0)	/* cannot be controlled */
  903. struct snd_timer_id {
  904. 	int dev_class;
  905. 	int dev_sclass;
  906. 	int card;
  907. 	int device;
  908. 	int subdevice;
  909. };
  911. struct snd_timer_ginfo {
  912. 	struct snd_timer_id tid;	/* requested timer ID */
  913. 	unsigned int flags;		/* timer flags - SNDRV_TIMER_FLG_* */
  914. 	int card;			/* card number */
  915. 	unsigned char id[64];		/* timer identification */
  916. 	unsigned char name[80];		/* timer name */
  917. 	unsigned long reserved0;	/* reserved for future use */
  918. 	unsigned long resolution;	/* average period resolution in ns */
  919. 	unsigned long resolution_min;	/* minimal period resolution in ns */
  920. 	unsigned long resolution_max;	/* maximal period resolution in ns */
  921. 	unsigned int clients;		/* active timer clients */
  922. 	unsigned char reserved[32];
  923. };
  925. struct snd_timer_gparams {
  926. 	struct snd_timer_id tid;	/* requested timer ID */
  927. 	unsigned long period_num;	/* requested precise period duration (in seconds) - numerator */
  928. 	unsigned long period_den;	/* requested precise period duration (in seconds) - denominator */
  929. 	unsigned char reserved[32];
  930. };
  932. struct snd_timer_gstatus {
  933. 	struct snd_timer_id tid;	/* requested timer ID */
  934. 	unsigned long resolution;	/* current period resolution in ns */
  935. 	unsigned long resolution_num;	/* precise current period resolution (in seconds) - numerator */
  936. 	unsigned long resolution_den;	/* precise current period resolution (in seconds) - denominator */
  937. 	unsigned char reserved[32];
  938. };
  940. struct snd_timer_select {
  941. 	struct snd_timer_id id;	/* bind to timer ID */
  942. 	unsigned char reserved[32];	/* reserved */
  943. };
  945. struct snd_timer_info {
  946. 	unsigned int flags;		/* timer flags - SNDRV_TIMER_FLG_* */
  947. 	int card;			/* card number */
  948. 	unsigned char id[64];		/* timer identificator */
  949. 	unsigned char name[80];		/* timer name */
  950. 	unsigned long reserved0;	/* reserved for future use */
  951. 	unsigned long resolution;	/* average period resolution in ns */
  952. 	unsigned char reserved[64];	/* reserved */
  953. };
  955. #define SNDRV_TIMER_PSFLG_AUTO		(1<<0)	/* auto start, otherwise one-shot */
  956. #define SNDRV_TIMER_PSFLG_EXCLUSIVE	(1<<1)	/* exclusive use, precise start/stop/pause/continue */
  957. #define SNDRV_TIMER_PSFLG_EARLY_EVENT	(1<<2)	/* write early event to the poll queue */
  959. struct snd_timer_params {
  960. 	unsigned int flags;		/* flags - SNDRV_TIMER_PSFLG_* */
  961. 	unsigned int ticks;		/* requested resolution in ticks */
  962. 	unsigned int queue_size;	/* total size of queue (32-1024) */
  963. 	unsigned int reserved0;		/* reserved, was: failure locations */
  964. 	unsigned int filter;		/* event filter (bitmask of SNDRV_TIMER_EVENT_*) */
  965. 	unsigned char reserved[60];	/* reserved */
  966. };
  968. struct snd_timer_status {
  969. 	struct timespec tstamp;		/* Timestamp - last update */
  970. 	unsigned int resolution;	/* current period resolution in ns */
  971. 	unsigned int lost;		/* counter of master tick lost */
  972. 	unsigned int overrun;		/* count of read queue overruns */
  973. 	unsigned int queue;		/* used queue size */
  974. 	unsigned char reserved[64];	/* reserved */
  975. };
  977. /*
  978.  * This structure describes the userspace-driven timer. Such timers are purely virtual,
  979.  * and can only be triggered from software (for instance, by userspace application).
  980.  */
  981. struct snd_timer_uinfo {
  982. 	/* To pretend being a normal timer, we need to know the resolution in ns. */
  983. 	__u64 resolution;
  984. 	int fd;
  985. 	unsigned int id;
  986. 	unsigned char reserved[16];
  987. };
  989. #define SNDRV_TIMER_IOCTL_PVERSION	_IOR('T', 0x00, int)
  990. #define SNDRV_TIMER_IOCTL_NEXT_DEVICE	_IOWR('T', 0x01, struct snd_timer_id)
  991. #define SNDRV_TIMER_IOCTL_TREAD_OLD	_IOW('T', 0x02, int)
  992. #define SNDRV_TIMER_IOCTL_GINFO		_IOWR('T', 0x03, struct snd_timer_ginfo)
  993. #define SNDRV_TIMER_IOCTL_GPARAMS	_IOW('T', 0x04, struct snd_timer_gparams)
  994. #define SNDRV_TIMER_IOCTL_GSTATUS	_IOWR('T', 0x05, struct snd_timer_gstatus)
  995. #define SNDRV_TIMER_IOCTL_SELECT	_IOW('T', 0x10, struct snd_timer_select)
  996. #define SNDRV_TIMER_IOCTL_INFO		_IOR('T', 0x11, struct snd_timer_info)
  997. #define SNDRV_TIMER_IOCTL_PARAMS	_IOW('T', 0x12, struct snd_timer_params)
  998. #define SNDRV_TIMER_IOCTL_STATUS	_IOR('T', 0x14, struct snd_timer_status)
  999. /* The following four ioctls are changed since 1.0.9 due to confliction */
  1000. #define SNDRV_TIMER_IOCTL_START		_IO('T', 0xa0)
  1001. #define SNDRV_TIMER_IOCTL_STOP		_IO('T', 0xa1)
  1002. #define SNDRV_TIMER_IOCTL_CONTINUE	_IO('T', 0xa2)
  1003. #define SNDRV_TIMER_IOCTL_PAUSE		_IO('T', 0xa3)
  1004. #define SNDRV_TIMER_IOCTL_TREAD64	_IOW('T', 0xa4, int)
  1005. #define SNDRV_TIMER_IOCTL_CREATE	_IOWR('T', 0xa5, struct snd_timer_uinfo)
  1006. #define SNDRV_TIMER_IOCTL_TRIGGER	_IO('T', 0xa6)
  1008. #if __BITS_PER_LONG == 64
  1009. #define SNDRV_TIMER_IOCTL_TREAD SNDRV_TIMER_IOCTL_TREAD_OLD
  1010. #else
  1011. #define SNDRV_TIMER_IOCTL_TREAD ((sizeof(__kernel_long_t) >= sizeof(time_t)) ? \
  1012. 				 SNDRV_TIMER_IOCTL_TREAD_OLD : \
  1013. 				 SNDRV_TIMER_IOCTL_TREAD64)
  1014. #endif
  1016. struct snd_timer_read {
  1017. 	unsigned int resolution;
  1018. 	unsigned int ticks;
  1019. };
  1021. enum {
  1022. 	SNDRV_TIMER_EVENT_RESOLUTION = 0,	/* val = resolution in ns */
  1023. 	SNDRV_TIMER_EVENT_TICK,			/* val = ticks */
  1024. 	SNDRV_TIMER_EVENT_START,		/* val = resolution in ns */
  1025. 	SNDRV_TIMER_EVENT_STOP,			/* val = 0 */
  1026. 	SNDRV_TIMER_EVENT_CONTINUE,		/* val = resolution in ns */
  1027. 	SNDRV_TIMER_EVENT_PAUSE,		/* val = 0 */
  1028. 	SNDRV_TIMER_EVENT_EARLY,		/* val = 0, early event */
  1029. 	SNDRV_TIMER_EVENT_SUSPEND,		/* val = 0 */
  1030. 	SNDRV_TIMER_EVENT_RESUME,		/* val = resolution in ns */
  1031. 	/* master timer events for slave timer instances */
  1032. 	SNDRV_TIMER_EVENT_MSTART = SNDRV_TIMER_EVENT_START + 10,
  1033. 	SNDRV_TIMER_EVENT_MSTOP = SNDRV_TIMER_EVENT_STOP + 10,
  1034. 	SNDRV_TIMER_EVENT_MCONTINUE = SNDRV_TIMER_EVENT_CONTINUE + 10,
  1035. 	SNDRV_TIMER_EVENT_MPAUSE = SNDRV_TIMER_EVENT_PAUSE + 10,
  1036. 	SNDRV_TIMER_EVENT_MSUSPEND = SNDRV_TIMER_EVENT_SUSPEND + 10,
  1037. 	SNDRV_TIMER_EVENT_MRESUME = SNDRV_TIMER_EVENT_RESUME + 10,
  1038. };
  1040. struct snd_timer_tread {
  1041. 	int event;
  1042. 	__time_pad pad1;
  1043. 	struct timespec tstamp;
  1044. 	unsigned int val;
  1045. 	__time_pad pad2;
  1046. };
  1048. /****************************************************************************
  1049.  *                                                                          *
  1050.  *        Section for driver control interface - /dev/snd/control?          *
  1051.  *                                                                          *
  1052.  ****************************************************************************/
  1054. #define SNDRV_CTL_VERSION		SNDRV_PROTOCOL_VERSION(2, 0, 9)
  1056. struct snd_ctl_card_info {
  1057. 	int card;			/* card number */
  1058. 	int pad;			/* reserved for future (was type) */
  1059. 	unsigned char id[16];		/* ID of card (user selectable) */
  1060. 	unsigned char driver[16];	/* Driver name */
  1061. 	unsigned char name[32];		/* Short name of soundcard */
  1062. 	unsigned char longname[80];	/* name + info text about soundcard */
  1063. 	unsigned char reserved_[16];	/* reserved for future (was ID of mixer) */
  1064. 	unsigned char mixername[80];	/* visual mixer identification */
  1065. 	unsigned char components[128];	/* card components / fine identification, delimited with one space (AC97 etc..) */
  1066. };
  1068. typedef int __bitwise snd_ctl_elem_type_t;
  1069. #define	SNDRV_CTL_ELEM_TYPE_NONE	((snd_ctl_elem_type_t) 0) /* invalid */
  1070. #define	SNDRV_CTL_ELEM_TYPE_BOOLEAN	((snd_ctl_elem_type_t) 1) /* boolean type */
  1071. #define	SNDRV_CTL_ELEM_TYPE_INTEGER	((snd_ctl_elem_type_t) 2) /* integer type */
  1072. #define	SNDRV_CTL_ELEM_TYPE_ENUMERATED	((snd_ctl_elem_type_t) 3) /* enumerated type */
  1073. #define	SNDRV_CTL_ELEM_TYPE_BYTES	((snd_ctl_elem_type_t) 4) /* byte array */
  1074. #define	SNDRV_CTL_ELEM_TYPE_IEC958	((snd_ctl_elem_type_t) 5) /* IEC958 (S/PDIF) setup */
  1075. #define	SNDRV_CTL_ELEM_TYPE_INTEGER64	((snd_ctl_elem_type_t) 6) /* 64-bit integer type */
  1076. #define	SNDRV_CTL_ELEM_TYPE_LAST	SNDRV_CTL_ELEM_TYPE_INTEGER64
  1078. typedef int __bitwise snd_ctl_elem_iface_t;
  1079. #define	SNDRV_CTL_ELEM_IFACE_CARD	((snd_ctl_elem_iface_t) 0) /* global control */
  1080. #define	SNDRV_CTL_ELEM_IFACE_HWDEP	((snd_ctl_elem_iface_t) 1) /* hardware dependent device */
  1081. #define	SNDRV_CTL_ELEM_IFACE_MIXER	((snd_ctl_elem_iface_t) 2) /* virtual mixer device */
  1082. #define	SNDRV_CTL_ELEM_IFACE_PCM	((snd_ctl_elem_iface_t) 3) /* PCM device */
  1083. #define	SNDRV_CTL_ELEM_IFACE_RAWMIDI	((snd_ctl_elem_iface_t) 4) /* RawMidi device */
  1084. #define	SNDRV_CTL_ELEM_IFACE_TIMER	((snd_ctl_elem_iface_t) 5) /* timer device */
  1085. #define	SNDRV_CTL_ELEM_IFACE_SEQUENCER	((snd_ctl_elem_iface_t) 6) /* sequencer client */
  1086. #define	SNDRV_CTL_ELEM_IFACE_LAST	SNDRV_CTL_ELEM_IFACE_SEQUENCER
  1088. #define SNDRV_CTL_ELEM_ACCESS_READ		(1<<0)
  1089. #define SNDRV_CTL_ELEM_ACCESS_WRITE		(1<<1)
  1090. #define SNDRV_CTL_ELEM_ACCESS_READWRITE		(SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE)
  1091. #define SNDRV_CTL_ELEM_ACCESS_VOLATILE		(1<<2)	/* control value may be changed without a notification */
  1092. /* (1 << 3) is unused. */
  1093. #define SNDRV_CTL_ELEM_ACCESS_TLV_READ		(1<<4)	/* TLV read is possible */
  1094. #define SNDRV_CTL_ELEM_ACCESS_TLV_WRITE		(1<<5)	/* TLV write is possible */
  1095. #define SNDRV_CTL_ELEM_ACCESS_TLV_READWRITE	(SNDRV_CTL_ELEM_ACCESS_TLV_READ|SNDRV_CTL_ELEM_ACCESS_TLV_WRITE)
  1096. #define SNDRV_CTL_ELEM_ACCESS_TLV_COMMAND	(1<<6)	/* TLV command is possible */
  1097. #define SNDRV_CTL_ELEM_ACCESS_INACTIVE		(1<<8)	/* control does actually nothing, but may be updated */
  1098. #define SNDRV_CTL_ELEM_ACCESS_LOCK		(1<<9)	/* write lock */
  1099. #define SNDRV_CTL_ELEM_ACCESS_OWNER		(1<<10)	/* write lock owner */
  1100. #define SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK	(1<<28)	/* kernel use a TLV callback */
  1101. #define SNDRV_CTL_ELEM_ACCESS_USER		(1<<29) /* user space element */
  1102. /* bits 30 and 31 are obsoleted (for indirect access) */
  1104. /* for further details see the ACPI and PCI power management specification */
  1105. #define SNDRV_CTL_POWER_D0		0x0000	/* full On */
  1106. #define SNDRV_CTL_POWER_D1		0x0100	/* partial On */
  1107. #define SNDRV_CTL_POWER_D2		0x0200	/* partial On */
  1108. #define SNDRV_CTL_POWER_D3		0x0300	/* Off */
  1109. #define SNDRV_CTL_POWER_D3hot		(SNDRV_CTL_POWER_D3|0x0000)	/* Off, with power */
  1110. #define SNDRV_CTL_POWER_D3cold		(SNDRV_CTL_POWER_D3|0x0001)	/* Off, without power */
  1112. #define SNDRV_CTL_ELEM_ID_NAME_MAXLEN	44
  1114. struct snd_ctl_elem_id {
  1115. 	unsigned int numid;		/* numeric identifier, zero = invalid */
  1116. 	snd_ctl_elem_iface_t iface;	/* interface identifier */
  1117. 	unsigned int device;		/* device/client number */
  1118. 	unsigned int subdevice;		/* subdevice (substream) number */
  1119. 	unsigned char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];		/* ASCII name of item */
  1120. 	unsigned int index;		/* index of item */
  1121. };
  1123. struct snd_ctl_elem_list {
  1124. 	unsigned int offset;		/* W: first element ID to get */
  1125. 	unsigned int space;		/* W: count of element IDs to get */
  1126. 	unsigned int used;		/* R: count of element IDs set */
  1127. 	unsigned int count;		/* R: count of all elements */
  1128. 	struct snd_ctl_elem_id *pids; /* R: IDs */
  1129. 	unsigned char reserved[50];
  1130. };
  1132. struct snd_ctl_elem_info {
  1133. 	struct snd_ctl_elem_id id;	/* W: element ID */
  1134. 	snd_ctl_elem_type_t type;	/* R: value type - SNDRV_CTL_ELEM_TYPE_* */
  1135. 	unsigned int access;		/* R: value access (bitmask) - SNDRV_CTL_ELEM_ACCESS_* */
  1136. 	unsigned int count;		/* count of values */
  1137. 	__kernel_pid_t owner;		/* owner's PID of this control */
  1138. 	union {
  1139. 		struct {
  1140. 			long min;		/* R: minimum value */
  1141. 			long max;		/* R: maximum value */
  1142. 			long step;		/* R: step (0 variable) */
  1143. 		} integer;
  1144. 		struct {
  1145. 			long long min;		/* R: minimum value */
  1146. 			long long max;		/* R: maximum value */
  1147. 			long long step;		/* R: step (0 variable) */
  1148. 		} integer64;
  1149. 		struct {
  1150. 			unsigned int items;	/* R: number of items */
  1151. 			unsigned int item;	/* W: item number */
  1152. 			char name[64];		/* R: value name */
  1153. 			__u64 names_ptr;	/* W: names list (ELEM_ADD only) */
  1154. 			unsigned int names_length;
  1155. 		} enumerated;
  1156. 		unsigned char reserved[128];
  1157. 	} value;
  1158. 	unsigned char reserved[64];
  1159. };
  1161. struct snd_ctl_elem_value {
  1162. 	struct snd_ctl_elem_id id;	/* W: element ID */
  1163. 	unsigned int indirect: 1;	/* W: indirect access - obsoleted */
  1164. 	union {
  1165. 		union {
  1166. 			long value[128];
  1167. 			long *value_ptr;	/* obsoleted */
  1168. 		} integer;
  1169. 		union {
  1170. 			long long value[64];
  1171. 			long long *value_ptr;	/* obsoleted */
  1172. 		} integer64;
  1173. 		union {
  1174. 			unsigned int item[128];
  1175. 			unsigned int *item_ptr;	/* obsoleted */
  1176. 		} enumerated;
  1177. 		union {
  1178. 			unsigned char data[512];
  1179. 			unsigned char *data_ptr;	/* obsoleted */
  1180. 		} bytes;
  1181. 		struct snd_aes_iec958 iec958;
  1182. 	} value;		/* RO */
  1183. 	unsigned char reserved[128];
  1184. };
  1186. struct snd_ctl_tlv {
  1187. 	unsigned int numid;	/* control element numeric identification */
  1188. 	unsigned int length;	/* in bytes aligned to 4 */
  1189. 	unsigned int tlv[];	/* first TLV */
  1190. };
  1192. #define SNDRV_CTL_IOCTL_PVERSION	_IOR('U', 0x00, int)
  1193. #define SNDRV_CTL_IOCTL_CARD_INFO	_IOR('U', 0x01, struct snd_ctl_card_info)
  1194. #define SNDRV_CTL_IOCTL_ELEM_LIST	_IOWR('U', 0x10, struct snd_ctl_elem_list)
  1195. #define SNDRV_CTL_IOCTL_ELEM_INFO	_IOWR('U', 0x11, struct snd_ctl_elem_info)
  1196. #define SNDRV_CTL_IOCTL_ELEM_READ	_IOWR('U', 0x12, struct snd_ctl_elem_value)
  1197. #define SNDRV_CTL_IOCTL_ELEM_WRITE	_IOWR('U', 0x13, struct snd_ctl_elem_value)
  1198. #define SNDRV_CTL_IOCTL_ELEM_LOCK	_IOW('U', 0x14, struct snd_ctl_elem_id)
  1199. #define SNDRV_CTL_IOCTL_ELEM_UNLOCK	_IOW('U', 0x15, struct snd_ctl_elem_id)
  1200. #define SNDRV_CTL_IOCTL_SUBSCRIBE_EVENTS _IOWR('U', 0x16, int)
  1201. #define SNDRV_CTL_IOCTL_ELEM_ADD	_IOWR('U', 0x17, struct snd_ctl_elem_info)
  1202. #define SNDRV_CTL_IOCTL_ELEM_REPLACE	_IOWR('U', 0x18, struct snd_ctl_elem_info)
  1203. #define SNDRV_CTL_IOCTL_ELEM_REMOVE	_IOWR('U', 0x19, struct snd_ctl_elem_id)
  1204. #define SNDRV_CTL_IOCTL_TLV_READ	_IOWR('U', 0x1a, struct snd_ctl_tlv)
  1205. #define SNDRV_CTL_IOCTL_TLV_WRITE	_IOWR('U', 0x1b, struct snd_ctl_tlv)
  1206. #define SNDRV_CTL_IOCTL_TLV_COMMAND	_IOWR('U', 0x1c, struct snd_ctl_tlv)
  1207. #define SNDRV_CTL_IOCTL_HWDEP_NEXT_DEVICE _IOWR('U', 0x20, int)
  1208. #define SNDRV_CTL_IOCTL_HWDEP_INFO	_IOR('U', 0x21, struct snd_hwdep_info)
  1209. #define SNDRV_CTL_IOCTL_PCM_NEXT_DEVICE	_IOR('U', 0x30, int)
  1210. #define SNDRV_CTL_IOCTL_PCM_INFO	_IOWR('U', 0x31, struct snd_pcm_info)
  1211. #define SNDRV_CTL_IOCTL_PCM_PREFER_SUBDEVICE _IOW('U', 0x32, int)
  1212. #define SNDRV_CTL_IOCTL_RAWMIDI_NEXT_DEVICE _IOWR('U', 0x40, int)
  1213. #define SNDRV_CTL_IOCTL_RAWMIDI_INFO	_IOWR('U', 0x41, struct snd_rawmidi_info)
  1214. #define SNDRV_CTL_IOCTL_RAWMIDI_PREFER_SUBDEVICE _IOW('U', 0x42, int)
  1215. #define SNDRV_CTL_IOCTL_UMP_NEXT_DEVICE	_IOWR('U', 0x43, int)
  1216. #define SNDRV_CTL_IOCTL_UMP_ENDPOINT_INFO _IOWR('U', 0x44, struct snd_ump_endpoint_info)
  1217. #define SNDRV_CTL_IOCTL_UMP_BLOCK_INFO	_IOWR('U', 0x45, struct snd_ump_block_info)
  1218. #define SNDRV_CTL_IOCTL_POWER		_IOWR('U', 0xd0, int)
  1219. #define SNDRV_CTL_IOCTL_POWER_STATE	_IOR('U', 0xd1, int)
  1221. /*
  1222.  *  Read interface.
  1223.  */
  1225. enum sndrv_ctl_event_type {
  1226. 	SNDRV_CTL_EVENT_ELEM = 0,
  1227. 	SNDRV_CTL_EVENT_LAST = SNDRV_CTL_EVENT_ELEM,
  1228. };
  1230. #define SNDRV_CTL_EVENT_MASK_VALUE	(1<<0)	/* element value was changed */
  1231. #define SNDRV_CTL_EVENT_MASK_INFO	(1<<1)	/* element info was changed */
  1232. #define SNDRV_CTL_EVENT_MASK_ADD	(1<<2)	/* element was added */
  1233. #define SNDRV_CTL_EVENT_MASK_TLV	(1<<3)	/* element TLV tree was changed */
  1234. #define SNDRV_CTL_EVENT_MASK_REMOVE	(~0U)	/* element was removed */
  1236. struct snd_ctl_event {
  1237. 	int type;	/* event type - SNDRV_CTL_EVENT_* */
  1238. 	union {
  1239. 		struct {
  1240. 			unsigned int mask;
  1241. 			struct snd_ctl_elem_id id;
  1242. 		} elem;
  1243. 		unsigned char data8[60];
  1244. 	} data;
  1245. };
  1247. /*
  1248.  *  Control names
  1249.  */
  1251. #define SNDRV_CTL_NAME_NONE				""
  1252. #define SNDRV_CTL_NAME_PLAYBACK				"Playback "
  1253. #define SNDRV_CTL_NAME_CAPTURE				"Capture "
  1255. #define SNDRV_CTL_NAME_IEC958_NONE			""
  1256. #define SNDRV_CTL_NAME_IEC958_SWITCH			"Switch"
  1257. #define SNDRV_CTL_NAME_IEC958_VOLUME			"Volume"
  1258. #define SNDRV_CTL_NAME_IEC958_DEFAULT			"Default"
  1259. #define SNDRV_CTL_NAME_IEC958_MASK			"Mask"
  1260. #define SNDRV_CTL_NAME_IEC958_CON_MASK			"Con Mask"
  1261. #define SNDRV_CTL_NAME_IEC958_PRO_MASK			"Pro Mask"
  1262. #define SNDRV_CTL_NAME_IEC958_PCM_STREAM		"PCM Stream"
  1263. #define SNDRV_CTL_NAME_IEC958(expl,direction,what)	"IEC958 " expl SNDRV_CTL_NAME_##direction SNDRV_CTL_NAME_IEC958_##what
  1265. #endif /* __SOUND_ASOUND_H */