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
  16struct snd_firewire_event_common {
  17        unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
  18};
  19
  20struct snd_firewire_event_lock_status {
  21        unsigned int type;
  22        unsigned int status; /* 0/1 = unlocked/locked */
  23};
  24
  25struct 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 */
  32struct 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};
  41struct snd_firewire_event_efw_response {
  42        unsigned int type;
  43        __be32 response[0];     /* some responses */
  44};
  45
  46struct snd_firewire_event_digi00x_message {
  47        unsigned int type;
  48        __u32 message;  /* Digi00x-specific message */
  49};
  50
  51struct snd_firewire_event_motu_notification {
  52        unsigned int type;
  53        __u32 message;  /* MOTU-specific bits. */
  54};
  55
  56union 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
  79struct 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 */
  92