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 #define SNDRV_FIREWIRE_EVENT_MOTU_NOTIFICATION  0x64776479
  14
  15 struct snd_firewire_event_common {
  16         unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
  17 };
  18
  19 struct snd_firewire_event_lock_status {
  20         unsigned int type;
  21         unsigned int status; /* 0/1 = unlocked/locked */
  22 };
  23
  24 struct snd_firewire_event_dice_notification {
  25         unsigned int type;
  26         unsigned int notification; /* DICE-specific bits */
  27 };
  28
  29 #define SND_EFW_TRANSACTION_USER_SEQNUM_MAX     ((__u32)((__u16)~0) - 1)
  30 /* each field should be in big endian */
  31 struct snd_efw_transaction {
  32         __be32 length;
  33         __be32 version;
  34         __be32 seqnum;
  35         __be32 category;
  36         __be32 command;
  37         __be32 status;
  38         __be32 params[0];
  39 };
  40 struct snd_firewire_event_efw_response {
  41         unsigned int type;
  42         __be32 response[0];     /* some responses */
  43 };
  44
  45 struct snd_firewire_event_digi00x_message {
  46         unsigned int type;
  47         __u32 message;  /* Digi00x-specific message */
  48 };
  49
  50 struct snd_firewire_event_motu_notification {
  51         unsigned int type;
  52         __u32 message;  /* MOTU-specific bits. */
  53 };
  54
  55 union snd_firewire_event {
  56         struct snd_firewire_event_common            common;
  57         struct snd_firewire_event_lock_status       lock_status;
  58         struct snd_firewire_event_dice_notification dice_notification;
  59         struct snd_firewire_event_efw_response      efw_response;
  60         struct snd_firewire_event_digi00x_message   digi00x_message;
  61         struct snd_firewire_event_motu_notification motu_notification;
  62 };
  63
  64
  65 #define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info)
  66 #define SNDRV_FIREWIRE_IOCTL_LOCK      _IO('H', 0xf9)
  67 #define SNDRV_FIREWIRE_IOCTL_UNLOCK    _IO('H', 0xfa)
  68
  69 #define SNDRV_FIREWIRE_TYPE_DICE        1
  70 #define SNDRV_FIREWIRE_TYPE_FIREWORKS   2
  71 #define SNDRV_FIREWIRE_TYPE_BEBOB       3
  72 #define SNDRV_FIREWIRE_TYPE_OXFW        4
  73 #define SNDRV_FIREWIRE_TYPE_DIGI00X     5
  74 #define SNDRV_FIREWIRE_TYPE_TASCAM      6
  75 #define SNDRV_FIREWIRE_TYPE_MOTU        7
  76 #define SNDRV_FIREWIRE_TYPE_FIREFACE    8
  77
  78 struct snd_firewire_get_info {
  79         unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */
  80         unsigned int card; /* same as fw_cdev_get_info.card */
  81         unsigned char guid[8];
  82         char device_name[16]; /* device node in /dev */
  83 };
  84
  85 /*
  86  * SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming.
  87  * Returns -EBUSY if the driver is already streaming.
  88  */
  89
  90 #endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */