[linux-block.git] / sound / firewire / lib.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef SOUND_FIREWIRE_LIB_H_INCLUDED
#define SOUND_FIREWIRE_LIB_H_INCLUDED

#include <linux/firewire-constants.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <sound/rawmidi.h>

struct fw_unit;

#define FW_GENERATION_MASK	0x00ff
#define FW_FIXED_GENERATION	0x0100
#define FW_QUIET		0x0200

int snd_fw_transaction(struct fw_unit *unit, int tcode,
		       u64 offset, void *buffer, size_t length,
		       unsigned int flags);

/* returns true if retrying the transaction would not make sense */
static inline bool rcode_is_permanent_error(int rcode)
{
	return rcode == RCODE_TYPE_ERROR || rcode == RCODE_ADDRESS_ERROR;
}

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
31ef9134 CL	2	#ifndef SOUND_FIREWIRE_LIB_H_INCLUDED
	3	#define SOUND_FIREWIRE_LIB_H_INCLUDED
	4
	5	#include <linux/firewire-constants.h>
	6	#include <linux/types.h>
585d7cba TS	7	#include <linux/sched.h>
585d7cba TS	8	#include <sound/rawmidi.h>
31ef9134 CL	9
	10	struct fw_unit;
	11
1b70485f CL	12	#define FW_GENERATION_MASK 0x00ff
	13	#define FW_FIXED_GENERATION 0x0100
	14	#define FW_QUIET 0x0200
	15
31ef9134	16	int snd_fw_transaction(struct fw_unit *unit, int tcode,
1b70485f CL	17	u64 offset, void *buffer, size_t length,
1b70485f CL	18	unsigned int flags);
31ef9134 CL	19
	20	/* returns true if retrying the transaction would not make sense */
	21	static inline bool rcode_is_permanent_error(int rcode)
	22	{
	23	return rcode == RCODE_TYPE_ERROR \|\| rcode == RCODE_ADDRESS_ERROR;
	24	}
	25
	26	#endif