[linux-2.6-block.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>

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
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>
	6
	7	struct fw_unit;
	8
1b70485f CL	9	#define FW_GENERATION_MASK 0x00ff
	10	#define FW_FIXED_GENERATION 0x0100
	11	#define FW_QUIET 0x0200
	12
31ef9134	13	int snd_fw_transaction(struct fw_unit *unit, int tcode,
1b70485f CL	14	u64 offset, void *buffer, size_t length,
1b70485f CL	15	unsigned int flags);
31ef9134 CL	16
	17	/* returns true if retrying the transaction would not make sense */
	18	static inline bool rcode_is_permanent_error(int rcode)
	19	{
	20	return rcode == RCODE_TYPE_ERROR \|\| rcode == RCODE_ADDRESS_ERROR;
	21	}
	22
	23	#endif