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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 | */ |
12 | struct iso_packets_buffer { |
13 | struct fw_iso_buffer iso_buffer; |
14 | struct { |
15 | void *buffer; |
16 | unsigned int offset; |
17 | } *packets; |
18 | }; |
19 | |
20 | int 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); |
23 | void iso_packets_buffer_destroy(struct iso_packets_buffer *b, |
24 | struct fw_unit *unit); |
25 | |
26 | #endif |
27 |
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