| Greg Kroah-Hartman | b244131 | 2017-11-01 15:07:57 +0100 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| Clemens Ladisch | 31ef913 | 2011-03-15 07:53:21 +0100 | [diff] [blame] | 2 | #ifndef SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED |
| 3 | #define SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED |
| 4 | |
| 5 | #include <linux/dma-mapping.h> |
| 6 | #include <linux/firewire.h> |
| 7 | |
| 8 | /** |
| 9 | * struct iso_packets_buffer - manages a buffer for many packets |
| 10 | * @iso_buffer: the memory containing the packets |
| 11 | * @packets: an array, with each element pointing to one packet |
| 12 | */ |
| 13 | struct iso_packets_buffer { |
| 14 | struct fw_iso_buffer iso_buffer; |
| 15 | struct { |
| 16 | void *buffer; |
| 17 | unsigned int offset; |
| 18 | } *packets; |
| 19 | }; |
| 20 | |
| 21 | int 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); |
| 24 | void iso_packets_buffer_destroy(struct iso_packets_buffer *b, |
| 25 | struct fw_unit *unit); |
| 26 | |
| 27 | #endif |