LXR linux/include/sound/minors.h

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2#ifndef __SOUND_MINORS_H
   3#define __SOUND_MINORS_H
   4
   5/*
   6 *  MINOR numbers
   7 */
   8
   9#define SNDRV_OS_MINORS                 256
  10
  11#define SNDRV_MINOR_DEVICES             32
  12#define SNDRV_MINOR_CARD(minor)         ((minor) >> 5)
  13#define SNDRV_MINOR_DEVICE(minor)       ((minor) & 0x001f)
  14#define SNDRV_MINOR(card, dev)          (((card) << 5) | (dev))
  15
  16/* these minors can still be used for autoloading devices (/dev/aload*) */
  17#define SNDRV_MINOR_CONTROL             0       /* 0 */
  18#define SNDRV_MINOR_GLOBAL              1       /* 1 */
  19#define SNDRV_MINOR_SEQUENCER           1       /* SNDRV_MINOR_GLOBAL + 0 * 32 */
  20#define SNDRV_MINOR_TIMER               33      /* SNDRV_MINOR_GLOBAL + 1 * 32 */
  21
  22#ifndef CONFIG_SND_DYNAMIC_MINORS
  23#define SNDRV_MINOR_COMPRESS            2       /* 2 - 3 */
  24#define SNDRV_MINOR_HWDEP               4       /* 4 - 7 */
  25#define SNDRV_MINOR_RAWMIDI             8       /* 8 - 15 */
  26#define SNDRV_MINOR_PCM_PLAYBACK        16      /* 16 - 23 */
  27#define SNDRV_MINOR_PCM_CAPTURE         24      /* 24 - 31 */
  28
  29/* same as first respective minor number to make minor allocation easier */
  30#define SNDRV_DEVICE_TYPE_CONTROL       SNDRV_MINOR_CONTROL
  31#define SNDRV_DEVICE_TYPE_HWDEP         SNDRV_MINOR_HWDEP
  32#define SNDRV_DEVICE_TYPE_RAWMIDI       SNDRV_MINOR_RAWMIDI
  33#define SNDRV_DEVICE_TYPE_PCM_PLAYBACK  SNDRV_MINOR_PCM_PLAYBACK
  34#define SNDRV_DEVICE_TYPE_PCM_CAPTURE   SNDRV_MINOR_PCM_CAPTURE
  35#define SNDRV_DEVICE_TYPE_SEQUENCER     SNDRV_MINOR_SEQUENCER
  36#define SNDRV_DEVICE_TYPE_TIMER         SNDRV_MINOR_TIMER
  37#define SNDRV_DEVICE_TYPE_COMPRESS      SNDRV_MINOR_COMPRESS
  38
  39#else /* CONFIG_SND_DYNAMIC_MINORS */
  40
  41enum {
  42        SNDRV_DEVICE_TYPE_CONTROL,
  43        SNDRV_DEVICE_TYPE_SEQUENCER,
  44        SNDRV_DEVICE_TYPE_TIMER,
  45        SNDRV_DEVICE_TYPE_HWDEP,
  46        SNDRV_DEVICE_TYPE_RAWMIDI,
  47        SNDRV_DEVICE_TYPE_PCM_PLAYBACK,
  48        SNDRV_DEVICE_TYPE_PCM_CAPTURE,
  49        SNDRV_DEVICE_TYPE_COMPRESS,
  50};
  51
  52#endif /* CONFIG_SND_DYNAMIC_MINORS */
  53
  54#define SNDRV_MINOR_HWDEPS              4
  55#define SNDRV_MINOR_RAWMIDIS            8
  56#define SNDRV_MINOR_PCMS                8
  57
  58
  59#ifdef CONFIG_SND_OSSEMUL
  60
  61#define SNDRV_MINOR_OSS_DEVICES         16
  62#define SNDRV_MINOR_OSS_CARD(minor)     ((minor) >> 4)
  63#define SNDRV_MINOR_OSS_DEVICE(minor)   ((minor) & 0x000f)
  64#define SNDRV_MINOR_OSS(card, dev)      (((card) << 4) | (dev))
  65
  66#define SNDRV_MINOR_OSS_MIXER           0       /* /dev/mixer - OSS 3.XX compatible */
  67#define SNDRV_MINOR_OSS_SEQUENCER       1       /* /dev/sequencer - OSS 3.XX compatible */
  68#define SNDRV_MINOR_OSS_MIDI            2       /* /dev/midi - native midi interface - OSS 3.XX compatible - UART */
  69#define SNDRV_MINOR_OSS_PCM             3       /* alias */
  70#define SNDRV_MINOR_OSS_PCM_8           3       /* /dev/dsp - 8bit PCM - OSS 3.XX compatible */
  71#define SNDRV_MINOR_OSS_AUDIO           4       /* /dev/audio - SunSparc compatible */
  72#define SNDRV_MINOR_OSS_PCM_16          5       /* /dev/dsp16 - 16bit PCM - OSS 3.XX compatible */
  73#define SNDRV_MINOR_OSS_SNDSTAT         6       /* /dev/sndstat - for compatibility with OSS */
  74#define SNDRV_MINOR_OSS_RESERVED7       7       /* reserved for future use */
  75#define SNDRV_MINOR_OSS_MUSIC           8       /* /dev/music - OSS 3.XX compatible */
  76#define SNDRV_MINOR_OSS_DMMIDI          9       /* /dev/dmmidi0 - this device can have another minor # with OSS */
  77#define SNDRV_MINOR_OSS_DMFM            10      /* /dev/dmfm0 - this device can have another minor # with OSS */
  78#define SNDRV_MINOR_OSS_MIXER1          11      /* alternate mixer */
  79#define SNDRV_MINOR_OSS_PCM1            12      /* alternate PCM (GF-A-1) */
  80#define SNDRV_MINOR_OSS_MIDI1           13      /* alternate midi - SYNTH */
  81#define SNDRV_MINOR_OSS_DMMIDI1         14      /* alternate dmmidi - SYNTH */
  82#define SNDRV_MINOR_OSS_RESERVED15      15      /* reserved for future use */
  83
  84#define SNDRV_OSS_DEVICE_TYPE_MIXER     0
  85#define SNDRV_OSS_DEVICE_TYPE_SEQUENCER 1
  86#define SNDRV_OSS_DEVICE_TYPE_PCM       2
  87#define SNDRV_OSS_DEVICE_TYPE_MIDI      3
  88#define SNDRV_OSS_DEVICE_TYPE_DMFM      4
  89#define SNDRV_OSS_DEVICE_TYPE_SNDSTAT   5
  90#define SNDRV_OSS_DEVICE_TYPE_MUSIC     6
  91
  92#define MODULE_ALIAS_SNDRV_MINOR(type) \
  93        MODULE_ALIAS("sound-service-?-" __stringify(type))
  94
  95#endif
  96
  97#endif /* __SOUND_MINORS_H */
  98