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#define SNDRV_FIREWIRE_TYPE_OXFW 4 59/* RME, MOTU, ... */ 60 61struct snd_firewire_get_info { 62 unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */ 63 unsigned int card; /* same as fw_cdev_get_info.card */ 64 unsigned char guid[8]; 65 char device_name[16]; /* device node in /dev */ 66}; 67 68/* 69 * SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming. 70 * Returns -EBUSY if the driver is already streaming. 71 */ 72 73#endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */ 74