1 /* SPDX-License-Identifier: GPL-2.0 */
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>
7 #include <linux/sched.h>
8 #include <sound/rawmidi.h>
9 
10 struct fw_unit;
11 
12 #define FW_GENERATION_MASK	0x00ff
13 #define FW_FIXED_GENERATION	0x0100
14 #define FW_QUIET		0x0200
15 
16 int snd_fw_transaction(struct fw_unit *unit, int tcode,
17 		       u64 offset, void *buffer, size_t length,
18 		       unsigned int flags);
19 
20 /* returns true if retrying the transaction would not make sense */
rcode_is_permanent_error(int rcode)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
27