Resguardo inicial

linux-7.2.3/sound/firewire/lib.h

@@ -0,0 +1,26 @@
+/* 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