1 #ifndef _UAPI_SOUND_FIREWIRE_H_INCLUDED 2 #define _UAPI_SOUND_FIREWIRE_H_INCLUDED 3 4 #include <linux/ioctl.h> 5 6 /* events can be read() from the hwdep device */ 7 8 #define SNDRV_FIREWIRE_EVENT_LOCK_STATUS 0x000010cc 9 #define SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION 0xd1ce004e 10 11 struct snd_firewire_event_common { 12 unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */ 13 }; 14 15 struct snd_firewire_event_lock_status { 16 unsigned int type; 17 unsigned int status; /* 0/1 = unlocked/locked */ 18 }; 19 20 struct snd_firewire_event_dice_notification { 21 unsigned int type; 22 unsigned int notification; /* DICE-specific bits */ 23 }; 24 25 union snd_firewire_event { 26 struct snd_firewire_event_common common; 27 struct snd_firewire_event_lock_status lock_status; 28 struct snd_firewire_event_dice_notification dice_notification; 29 }; 30 31 32 #define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info) 33 #define SNDRV_FIREWIRE_IOCTL_LOCK _IO('H', 0xf9) 34 #define SNDRV_FIREWIRE_IOCTL_UNLOCK _IO('H', 0xfa) 35 36 #define SNDRV_FIREWIRE_TYPE_DICE 1 37 /* Fireworks, AV/C, RME, MOTU, ... */ 38 39 struct snd_firewire_get_info { 40 unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */ 41 unsigned int card; /* same as fw_cdev_get_info.card */ 42 unsigned char guid[8]; 43 char device_name[16]; /* device node in /dev */ 44 }; 45 46 /* 47 * SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming. 48 * Returns -EBUSY if the driver is already streaming. 49 */ 50 51 #endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */ 52
