mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 06:47:41 +07:00
f656edd5fb
This commit adds hwdep interface so as the other drivers for audio and music units on IEEE 1394 have. This interface is designed for mixer/control applications. By using this interface, an application can get information about firewire node, can lock/unlock kernel streaming and can get notification at starting/stopping kernel streaming. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>
91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
#ifndef _UAPI_SOUND_FIREWIRE_H_INCLUDED
|
|
#define _UAPI_SOUND_FIREWIRE_H_INCLUDED
|
|
|
|
#include <linux/ioctl.h>
|
|
#include <linux/types.h>
|
|
|
|
/* events can be read() from the hwdep device */
|
|
|
|
#define SNDRV_FIREWIRE_EVENT_LOCK_STATUS 0x000010cc
|
|
#define SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION 0xd1ce004e
|
|
#define SNDRV_FIREWIRE_EVENT_EFW_RESPONSE 0x4e617475
|
|
#define SNDRV_FIREWIRE_EVENT_DIGI00X_MESSAGE 0x746e736c
|
|
#define SNDRV_FIREWIRE_EVENT_MOTU_NOTIFICATION 0x64776479
|
|
|
|
struct snd_firewire_event_common {
|
|
unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
|
|
};
|
|
|
|
struct snd_firewire_event_lock_status {
|
|
unsigned int type;
|
|
unsigned int status; /* 0/1 = unlocked/locked */
|
|
};
|
|
|
|
struct snd_firewire_event_dice_notification {
|
|
unsigned int type;
|
|
unsigned int notification; /* DICE-specific bits */
|
|
};
|
|
|
|
#define SND_EFW_TRANSACTION_USER_SEQNUM_MAX ((__u32)((__u16)~0) - 1)
|
|
/* each field should be in big endian */
|
|
struct snd_efw_transaction {
|
|
__be32 length;
|
|
__be32 version;
|
|
__be32 seqnum;
|
|
__be32 category;
|
|
__be32 command;
|
|
__be32 status;
|
|
__be32 params[0];
|
|
};
|
|
struct snd_firewire_event_efw_response {
|
|
unsigned int type;
|
|
__be32 response[0]; /* some responses */
|
|
};
|
|
|
|
struct snd_firewire_event_digi00x_message {
|
|
unsigned int type;
|
|
__u32 message; /* Digi00x-specific message */
|
|
};
|
|
|
|
struct snd_firewire_event_motu_notification {
|
|
unsigned int type;
|
|
__u32 message; /* MOTU-specific bits. */
|
|
};
|
|
|
|
union snd_firewire_event {
|
|
struct snd_firewire_event_common common;
|
|
struct snd_firewire_event_lock_status lock_status;
|
|
struct snd_firewire_event_dice_notification dice_notification;
|
|
struct snd_firewire_event_efw_response efw_response;
|
|
struct snd_firewire_event_digi00x_message digi00x_message;
|
|
struct snd_firewire_event_motu_notification motu_notification;
|
|
};
|
|
|
|
|
|
#define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info)
|
|
#define SNDRV_FIREWIRE_IOCTL_LOCK _IO('H', 0xf9)
|
|
#define SNDRV_FIREWIRE_IOCTL_UNLOCK _IO('H', 0xfa)
|
|
|
|
#define SNDRV_FIREWIRE_TYPE_DICE 1
|
|
#define SNDRV_FIREWIRE_TYPE_FIREWORKS 2
|
|
#define SNDRV_FIREWIRE_TYPE_BEBOB 3
|
|
#define SNDRV_FIREWIRE_TYPE_OXFW 4
|
|
#define SNDRV_FIREWIRE_TYPE_DIGI00X 5
|
|
#define SNDRV_FIREWIRE_TYPE_TASCAM 6
|
|
#define SNDRV_FIREWIRE_TYPE_MOTU 7
|
|
#define SNDRV_FIREWIRE_TYPE_FIREFACE 8
|
|
|
|
struct snd_firewire_get_info {
|
|
unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */
|
|
unsigned int card; /* same as fw_cdev_get_info.card */
|
|
unsigned char guid[8];
|
|
char device_name[16]; /* device node in /dev */
|
|
};
|
|
|
|
/*
|
|
* SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming.
|
|
* Returns -EBUSY if the driver is already streaming.
|
|
*/
|
|
|
|
#endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */
|