include/uapi/sound/firewire.h

   1 #ifndef _UAPI_SOUND_FIREWIRE_H_INCLUDED
   2 #define _UAPI_SOUND_FIREWIRE_H_INCLUDED
   3
   4 #include <linux/ioctl.h>
   5
   6 /* events can be read() from the hwdep device */
   7
   8 #define SNDRV_FIREWIRE_EVENT_LOCK_STATUS        0x000010cc
   9 #define SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION  0xd1ce004e
  10
  11 struct snd_firewire_event_common {
  12         unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
  13 };
  14
  15 struct snd_firewire_event_lock_status {
  16         unsigned int type;
  17         unsigned int status; /* 0/1 = unlocked/locked */
  18 };
  19
  20 struct snd_firewire_event_dice_notification {
  21         unsigned int type;
  22         unsigned int notification; /* DICE-specific bits */
  23 };
  24
  25 union snd_firewire_event {
  26         struct snd_firewire_event_common            common;
  27         struct snd_firewire_event_lock_status       lock_status;
  28         struct snd_firewire_event_dice_notification dice_notification;
  29 };
  30
  31
  32 #define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info)
  33 #define SNDRV_FIREWIRE_IOCTL_LOCK      _IO('H', 0xf9)
  34 #define SNDRV_FIREWIRE_IOCTL_UNLOCK    _IO('H', 0xfa)
  35
  36 #define SNDRV_FIREWIRE_TYPE_DICE        1
  37 /* Fireworks, AV/C, RME, MOTU, ... */
  38
  39 struct snd_firewire_get_info {
  40         unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */
  41         unsigned int card; /* same as fw_cdev_get_info.card */
  42         unsigned char guid[8];
  43         char device_name[16]; /* device node in /dev */
  44 };
  45
  46 /*
  47  * SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming.
  48  * Returns -EBUSY if the driver is already streaming.
  49  */
  50
  51 #endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */