27 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef SOUND_FIREWIRE_LIB_H_INCLUDED3#define SOUND_FIREWIRE_LIB_H_INCLUDED4 5#include <linux/firewire-constants.h>6#include <linux/types.h>7#include <linux/sched.h>8#include <sound/rawmidi.h>9 10struct fw_unit;11 12#define FW_GENERATION_MASK 0x00ff13#define FW_FIXED_GENERATION 0x010014#define FW_QUIET 0x020015 16int 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 */21static inline bool rcode_is_permanent_error(int rcode)22{23 return rcode == RCODE_TYPE_ERROR || rcode == RCODE_ADDRESS_ERROR;24}25 26#endif27