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 16 struct snd_firewire_event_common { 17 unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */ 18 }; 19 20 struct snd_firewire_event_lock_status { 21 unsigned int type; 22 unsigned int status; /* 0/1 = unlocked/locked */ 23 }; 24 25 struct snd_firewire_event_dice_notification { 26 unsigned int type; 27 unsigned int notification; /* DICE-specific bits */ 28 }; 29 30 #define SND_EFW_TRANSACTION_USER_SEQNUM_MAX ((__u32)((__u16)~0) - 1) 31 /* each field should be in big endian */ 32 struct snd_efw_transaction { 33 __be32 length; 34 __be32 version; 35 __be32 seqnum; 36 __be32 category; 37 __be32 command; 38 __be32 status; 39 __be32 params[0]; 40 }; 41 struct snd_firewire_event_efw_response { 42 unsigned int type; 43 __be32 response[0]; /* some responses */ 44 }; 45 46 struct snd_firewire_event_digi00x_message { 47 unsigned int type; 48 __u32 message; /* Digi00x-specific message */ 49 }; 50 51 struct snd_firewire_event_motu_notification { 52 unsigned int type; 53 __u32 message; /* MOTU-specific bits. */ 54 }; 55 56 union snd_firewire_event { 57 struct snd_firewire_event_common common; 58 struct snd_firewire_event_lock_status lock_status; 59 struct snd_firewire_event_dice_notification dice_notification; 60 struct snd_firewire_event_efw_response efw_response; 61 struct snd_firewire_event_digi00x_message digi00x_message; 62 struct snd_firewire_event_motu_notification motu_notification; 63 }; 64 65 66 #define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info) 67 #define SNDRV_FIREWIRE_IOCTL_LOCK _IO('H', 0xf9) 68 #define SNDRV_FIREWIRE_IOCTL_UNLOCK _IO('H', 0xfa) 69 70 #define SNDRV_FIREWIRE_TYPE_DICE 1 71 #define SNDRV_FIREWIRE_TYPE_FIREWORKS 2 72 #define SNDRV_FIREWIRE_TYPE_BEBOB 3 73 #define SNDRV_FIREWIRE_TYPE_OXFW 4 74 #define SNDRV_FIREWIRE_TYPE_DIGI00X 5 75 #define SNDRV_FIREWIRE_TYPE_TASCAM 6 76 #define SNDRV_FIREWIRE_TYPE_MOTU 7 77 #define SNDRV_FIREWIRE_TYPE_FIREFACE 8 78 79 struct snd_firewire_get_info { 80 unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */ 81 unsigned int card; /* same as fw_cdev_get_info.card */ 82 unsigned char guid[8]; 83 char device_name[16]; /* device node in /dev */ 84 }; 85 86 /* 87 * SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming. 88 * Returns -EBUSY if the driver is already streaming. 89 */ 90 91 #endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */ 92