[mirror_ubuntu-artful-kernel.git] / sound / firewire / lib.h

#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;
}

void snd_fw_schedule_registration(struct fw_unit *unit,
				  struct delayed_work *dwork);

#endif
Commit	Line	Data
31ef9134 CL	1	#ifndef SOUND_FIREWIRE_LIB_H_INCLUDED
	2	#define SOUND_FIREWIRE_LIB_H_INCLUDED
	3
	4	#include <linux/firewire-constants.h>
	5	#include <linux/types.h>
585d7cba TS	6	#include <linux/sched.h>
585d7cba TS	7	#include <sound/rawmidi.h>
31ef9134 CL	8
	9	struct fw_unit;
	10
1b70485f CL	11	#define FW_GENERATION_MASK 0x00ff
	12	#define FW_FIXED_GENERATION 0x0100
	13	#define FW_QUIET 0x0200
	14
31ef9134	15	int snd_fw_transaction(struct fw_unit *unit, int tcode,
1b70485f CL	16	u64 offset, void *buffer, size_t length,
1b70485f CL	17	unsigned int flags);
31ef9134 CL	18
	19	/* returns true if retrying the transaction would not make sense */
	20	static inline bool rcode_is_permanent_error(int rcode)
	21	{
	22	return rcode == RCODE_TYPE_ERROR \|\| rcode == RCODE_ADDRESS_ERROR;
	23	}
	24
923f92eb TS	25	void snd_fw_schedule_registration(struct fw_unit *unit,
	26	struct delayed_work *dwork);
	27
31ef9134	28	#endif