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 */