Linux kernel mirror (for testing)
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linux
1#ifndef _UAPI_SOUND_FIREWIRE_H_INCLUDED
2#define _UAPI_SOUND_FIREWIRE_H_INCLUDED
3
4#include <linux/ioctl.h>
5#include <linux/types.h>
6
7/* events can be read() from the hwdep device */
8
9#define SNDRV_FIREWIRE_EVENT_LOCK_STATUS 0x000010cc
10#define SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION 0xd1ce004e
11#define SNDRV_FIREWIRE_EVENT_EFW_RESPONSE 0x4e617475
12
13struct snd_firewire_event_common {
14 unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
15};
16
17struct snd_firewire_event_lock_status {
18 unsigned int type;
19 unsigned int status; /* 0/1 = unlocked/locked */
20};
21
22struct snd_firewire_event_dice_notification {
23 unsigned int type;
24 unsigned int notification; /* DICE-specific bits */
25};
26
27#define SND_EFW_TRANSACTION_USER_SEQNUM_MAX ((__u32)((__u16)~0) - 1)
28/* each field should be in big endian */
29struct snd_efw_transaction {
30 __be32 length;
31 __be32 version;
32 __be32 seqnum;
33 __be32 category;
34 __be32 command;
35 __be32 status;
36 __be32 params[0];
37};
38struct snd_firewire_event_efw_response {
39 unsigned int type;
40 __be32 response[0]; /* some responses */
41};
42
43union snd_firewire_event {
44 struct snd_firewire_event_common common;
45 struct snd_firewire_event_lock_status lock_status;
46 struct snd_firewire_event_dice_notification dice_notification;
47 struct snd_firewire_event_efw_response efw_response;
48};
49
50
51#define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info)
52#define SNDRV_FIREWIRE_IOCTL_LOCK _IO('H', 0xf9)
53#define SNDRV_FIREWIRE_IOCTL_UNLOCK _IO('H', 0xfa)
54
55#define SNDRV_FIREWIRE_TYPE_DICE 1
56#define SNDRV_FIREWIRE_TYPE_FIREWORKS 2
57#define SNDRV_FIREWIRE_TYPE_BEBOB 3
58/* AV/C, RME, MOTU, ... */
59
60struct snd_firewire_get_info {
61 unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */
62 unsigned int card; /* same as fw_cdev_get_info.card */
63 unsigned char guid[8];
64 char device_name[16]; /* device node in /dev */
65};
66
67/*
68 * SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming.
69 * Returns -EBUSY if the driver is already streaming.
70 */
71
72#endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */