| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED |
| #define SOUND_FIREWIRE_PACKETS_BUFFER_H_INCLUDED |
| |
| #include <linux/dma-mapping.h> |
| #include <linux/firewire.h> |
| |
| /** |
| * struct iso_packets_buffer - manages a buffer for many packets |
| * @iso_buffer: the memory containing the packets |
| * @packets: an array, with each element pointing to one packet |
| */ |
| struct iso_packets_buffer { |
| struct fw_iso_buffer iso_buffer; |
| struct { |
| void *buffer; |
| unsigned int offset; |
| } *packets; |
| }; |
| |
| int iso_packets_buffer_init(struct iso_packets_buffer *b, struct fw_unit *unit, |
| unsigned int count, unsigned int packet_size, |
| enum dma_data_direction direction); |
| void iso_packets_buffer_destroy(struct iso_packets_buffer *b, |
| struct fw_unit *unit); |
| |
| #endif |
