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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
31ef9134 CL |
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 |