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 #define SNDRV_FIREWIRE_EVENT_TASCAM_CONTROL     0x7473636d
  16
  17 struct snd_firewire_event_common {
  18         unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
  19 };
  20
  21 struct snd_firewire_event_lock_status {
  22         unsigned int type;
  23         unsigned int status; /* 0/1 = unlocked/locked */
  24 };
  25
  26 struct snd_firewire_event_dice_notification {
  27         unsigned int type;
  28         unsigned int notification; /* DICE-specific bits */
  29 };
  30
  31 #define SND_EFW_TRANSACTION_USER_SEQNUM_MAX     ((__u32)((__u16)~0) - 1)
  32 /* each field should be in big endian */
  33 struct snd_efw_transaction {
  34         __be32 length;
  35         __be32 version;
  36         __be32 seqnum;
  37         __be32 category;
  38         __be32 command;
  39         __be32 status;
  40         __be32 params[0];
  41 };
  42 struct snd_firewire_event_efw_response {
  43         unsigned int type;
  44         __be32 response[0];     /* some responses */
  45 };
  46
  47 struct snd_firewire_event_digi00x_message {
  48         unsigned int type;
  49         __u32 message;  /* Digi00x-specific message */
  50 };
  51
  52 struct snd_firewire_event_motu_notification {
  53         unsigned int type;
  54         __u32 message;  /* MOTU-specific bits. */
  55 };
  56
  57 struct snd_firewire_tascam_change {
  58         unsigned int index;
  59         __be32 before;
  60         __be32 after;
  61 };
  62
  63 struct snd_firewire_event_tascam_control {
  64         unsigned int type;
  65         struct snd_firewire_tascam_change changes[0];
  66 };
  67
  68 union snd_firewire_event {
  69         struct snd_firewire_event_common            common;
  70         struct snd_firewire_event_lock_status       lock_status;
  71         struct snd_firewire_event_dice_notification dice_notification;
  72         struct snd_firewire_event_efw_response      efw_response;
  73         struct snd_firewire_event_digi00x_message   digi00x_message;
  74         struct snd_firewire_event_tascam_control    tascam_control;
  75         struct snd_firewire_event_motu_notification motu_notification;
  76 };
  77
  78
  79 #define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info)
  80 #define SNDRV_FIREWIRE_IOCTL_LOCK      _IO('H', 0xf9)
  81 #define SNDRV_FIREWIRE_IOCTL_UNLOCK    _IO('H', 0xfa)
  82 #define SNDRV_FIREWIRE_IOCTL_TASCAM_STATE _IOR('H', 0xfb, struct snd_firewire_tascam_state)
  83
  84 #define SNDRV_FIREWIRE_TYPE_DICE        1
  85 #define SNDRV_FIREWIRE_TYPE_FIREWORKS   2
  86 #define SNDRV_FIREWIRE_TYPE_BEBOB       3
  87 #define SNDRV_FIREWIRE_TYPE_OXFW        4
  88 #define SNDRV_FIREWIRE_TYPE_DIGI00X     5
  89 #define SNDRV_FIREWIRE_TYPE_TASCAM      6
  90 #define SNDRV_FIREWIRE_TYPE_MOTU        7
  91 #define SNDRV_FIREWIRE_TYPE_FIREFACE    8
  92
  93 struct snd_firewire_get_info {
  94         unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */
  95         unsigned int card; /* same as fw_cdev_get_info.card */
  96         unsigned char guid[8];
  97         char device_name[16]; /* device node in /dev */
  98 };
  99
 100 /*
 101  * SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming.
 102  * Returns -EBUSY if the driver is already streaming.
 103  */
 104
 105 #define SNDRV_FIREWIRE_TASCAM_STATE_COUNT       64
 106
 107 struct snd_firewire_tascam_state {
 108         __be32 data[SNDRV_FIREWIRE_TASCAM_STATE_COUNT];
 109 };
 110
 111 #endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */