28 lines · c
1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED3#define SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED4 5#include <linux/dma-mapping.h>6#include <linux/firewire.h>7 8/**9 * struct iso_packets_buffer - manages a buffer for many packets10 * @iso_buffer: the memory containing the packets11 * @packets: an array, with each element pointing to one packet12 */13struct iso_packets_buffer {14 struct fw_iso_buffer iso_buffer;15 struct {16 void *buffer;17 unsigned int offset;18 } *packets;19};20 21int iso_packets_buffer_init(struct iso_packets_buffer *b, struct fw_unit *unit,22 unsigned int count, unsigned int packet_size,23 enum dma_data_direction direction);24void iso_packets_buffer_destroy(struct iso_packets_buffer *b,25 struct fw_unit *unit);26 27#endif28