LXR linux/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
  17struct snd_firewire_event_common {
  18        unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
  19};
  20
  21struct snd_firewire_event_lock_status {
  22        unsigned int type;
  23        unsigned int status; /* 0/1 = unlocked/locked */
  24};
  25
  26struct 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 */
  33struct 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};
  42struct snd_firewire_event_efw_response {
  43        unsigned int type;
  44        __be32 response[0];     /* some responses */
  45};
  46
  47struct snd_firewire_event_digi00x_message {
  48        unsigned int type;
  49        __u32 message;  /* Digi00x-specific message */
  50};
  51
  52struct snd_firewire_event_motu_notification {
  53        unsigned int type;
  54        __u32 message;  /* MOTU-specific bits. */
  55};
  56
  57struct snd_firewire_tascam_change {
  58        unsigned int index;
  59        __be32 before;
  60        __be32 after;
  61};
  62
  63struct snd_firewire_event_tascam_control {
  64        unsigned int type;
  65        struct snd_firewire_tascam_change changes[0];
  66};
  67
  68union 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
  93struct 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
 107struct snd_firewire_tascam_state {
 108        __be32 data[SNDRV_FIREWIRE_TASCAM_STATE_COUNT];
 109};
 110
 111#endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */
 112