include/uapi/sound/firewire.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 #ifndef _UAPI_SOUND_FIREWIRE_H_INCLUDED
   3 #define _UAPI_SOUND_FIREWIRE_H_INCLUDED
   4
   5 #include <linux/ioctl.h>
   6 #include <linux/types.h>
   7
   8 /* events can be read() from the hwdep device */
   9
  10 #define SNDRV_FIREWIRE_EVENT_LOCK_STATUS        0x000010cc
  11 #define SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION  0xd1ce004e
  12 #define SNDRV_FIREWIRE_EVENT_EFW_RESPONSE       0x4e617475
  13 #define SNDRV_FIREWIRE_EVENT_DIGI00X_MESSAGE    0x746e736c
  14 #define SNDRV_FIREWIRE_EVENT_MOTU_NOTIFICATION  0x64776479
  15
  16 struct snd_firewire_event_common {
  17         unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
  18 };
  19
  20 struct snd_firewire_event_lock_status {
  21         unsigned int type;
  22         unsigned int status; /* 0/1 = unlocked/locked */
  23 };
  24
  25 struct snd_firewire_event_dice_notification {
  26         unsigned int type;
  27         unsigned int notification; /* DICE-specific bits */
  28 };
  29
  30 #define SND_EFW_TRANSACTION_USER_SEQNUM_MAX     ((__u32)((__u16)~0) - 1)
  31 /* each field should be in big endian */
  32 struct snd_efw_transaction {
  33         __be32 length;
  34         __be32 version;
  35         __be32 seqnum;
  36         __be32 category;
  37         __be32 command;
  38         __be32 status;
  39         __be32 params[0];
  40 };
  41 struct snd_firewire_event_efw_response {
  42         unsigned int type;
  43         __be32 response[0];     /* some responses */
  44 };
  45
  46 struct snd_firewire_event_digi00x_message {
  47         unsigned int type;
  48         __u32 message;  /* Digi00x-specific message */
  49 };
  50
  51 struct snd_firewire_event_motu_notification {
  52         unsigned int type;
  53         __u32 message;  /* MOTU-specific bits. */
  54 };
  55
  56 union snd_firewire_event {
  57         struct snd_firewire_event_common            common;
  58         struct snd_firewire_event_lock_status       lock_status;
  59         struct snd_firewire_event_dice_notification dice_notification;
  60         struct snd_firewire_event_efw_response      efw_response;
  61         struct snd_firewire_event_digi00x_message   digi00x_message;
  62         struct snd_firewire_event_motu_notification motu_notification;
  63 };
  64
  65
  66 #define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info)
  67 #define SNDRV_FIREWIRE_IOCTL_LOCK      _IO('H', 0xf9)
  68 #define SNDRV_FIREWIRE_IOCTL_UNLOCK    _IO('H', 0xfa)
  69
  70 #define SNDRV_FIREWIRE_TYPE_DICE        1
  71 #define SNDRV_FIREWIRE_TYPE_FIREWORKS   2
  72 #define SNDRV_FIREWIRE_TYPE_BEBOB       3
  73 #define SNDRV_FIREWIRE_TYPE_OXFW        4
  74 #define SNDRV_FIREWIRE_TYPE_DIGI00X     5
  75 #define SNDRV_FIREWIRE_TYPE_TASCAM      6
  76 #define SNDRV_FIREWIRE_TYPE_MOTU        7
  77 #define SNDRV_FIREWIRE_TYPE_FIREFACE    8
  78
  79 struct snd_firewire_get_info {
  80         unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */
  81         unsigned int card; /* same as fw_cdev_get_info.card */
  82         unsigned char guid[8];
  83         char device_name[16]; /* device node in /dev */
  84 };
  85
  86 /*
  87  * SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming.
  88  * Returns -EBUSY if the driver is already streaming.
  89  */
  90
  91 #endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */