1#ifndef SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED
2#define SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED
3
4#include <linux/dma-mapping.h>
5#include <linux/firewire.h>
6
7/**
8 * struct iso_packets_buffer - manages a buffer for many packets
9 * @iso_buffer: the memory containing the packets
10 * @packets: an array, with each element pointing to one packet
11 */
12struct iso_packets_buffer {
13	struct fw_iso_buffer iso_buffer;
14	struct {
15		void *buffer;
16		unsigned int offset;
17	} *packets;
18};
19
20int iso_packets_buffer_init(struct iso_packets_buffer *b, struct fw_unit *unit,
21			    unsigned int count, unsigned int packet_size,
22			    enum dma_data_direction direction);
23void iso_packets_buffer_destroy(struct iso_packets_buffer *b,
24				struct fw_unit *unit);
25
26#endif
27