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 #include <linux/types.h>
   6
   7 /* events can be read() from the hwdep device */
   8
   9 #define SNDRV_FIREWIRE_EVENT_LOCK_STATUS        0x000010cc
  10 #define SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION  0xd1ce004e
  11 #define SNDRV_FIREWIRE_EVENT_EFW_RESPONSE       0x4e617475
  12 #define SNDRV_FIREWIRE_EVENT_DIGI00X_MESSAGE    0x746e736c
  13
  14 struct snd_firewire_event_common {
  15         unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
  16 };
  17
  18 struct snd_firewire_event_lock_status {
  19         unsigned int type;
  20         unsigned int status; /* 0/1 = unlocked/locked */
  21 };
  22
  23 struct snd_firewire_event_dice_notification {
  24         unsigned int type;
  25         unsigned int notification; /* DICE-specific bits */
  26 };
  27
  28 #define SND_EFW_TRANSACTION_USER_SEQNUM_MAX     ((__u32)((__u16)~0) - 1)
  29 /* each field should be in big endian */
  30 struct snd_efw_transaction {
  31         __be32 length;
  32         __be32 version;
  33         __be32 seqnum;
  34         __be32 category;
  35         __be32 command;
  36         __be32 status;
  37         __be32 params[0];
  38 };
  39 struct snd_firewire_event_efw_response {
  40         unsigned int type;
  41         __be32 response[0];     /* some responses */
  42 };
  43
  44 struct snd_firewire_event_digi00x_message {
  45         unsigned int type;
  46         __u32 message;  /* Digi00x-specific message */
  47 };
  48
  49 union snd_firewire_event {
  50         struct snd_firewire_event_common            common;
  51         struct snd_firewire_event_lock_status       lock_status;
  52         struct snd_firewire_event_dice_notification dice_notification;
  53         struct snd_firewire_event_efw_response      efw_response;
  54         struct snd_firewire_event_digi00x_message   digi00x_message;
  55 };
  56
  57
  58 #define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info)
  59 #define SNDRV_FIREWIRE_IOCTL_LOCK      _IO('H', 0xf9)
  60 #define SNDRV_FIREWIRE_IOCTL_UNLOCK    _IO('H', 0xfa)
  61
  62 #define SNDRV_FIREWIRE_TYPE_DICE        1
  63 #define SNDRV_FIREWIRE_TYPE_FIREWORKS   2
  64 #define SNDRV_FIREWIRE_TYPE_BEBOB       3
  65 #define SNDRV_FIREWIRE_TYPE_OXFW        4
  66 #define SNDRV_FIREWIRE_TYPE_DIGI00X     5
  67 #define SNDRV_FIREWIRE_TYPE_TASCAM      6
  68 /* RME, MOTU, ... */
  69
  70 struct snd_firewire_get_info {
  71         unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */
  72         unsigned int card; /* same as fw_cdev_get_info.card */
  73         unsigned char guid[8];
  74         char device_name[16]; /* device node in /dev */
  75 };
  76
  77 /*
  78  * SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming.
  79  * Returns -EBUSY if the driver is already streaming.
  80  */
  81
  82 #endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */