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 13 struct snd_firewire_event_common { 14 unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */ 15 }; 16 17 struct snd_firewire_event_lock_status { 18 unsigned int type; 19 unsigned int status; /* 0/1 = unlocked/locked */ 20 }; 21 22 struct 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 */ 29 struct 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 }; 38 struct snd_firewire_event_efw_response { 39 unsigned int type; 40 __be32 response[0]; /* some responses */ 41 }; 42 43 union 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 60 struct 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 */ 73