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1 | /* | |
2 | * Thunderbolt DMA configuration based mailbox support | |
3 | * | |
4 | * Copyright (C) 2017, Intel Corporation | |
5 | * Authors: Michael Jamet <michael.jamet@intel.com> | |
6 | * Mika Westerberg <mika.westerberg@linux.intel.com> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | #ifndef DMA_PORT_H_ | |
14 | #define DMA_PORT_H_ | |
15 | ||
16 | #include "tb.h" | |
17 | ||
18 | struct tb_switch; | |
19 | struct tb_dma_port; | |
20 | ||
21 | #define DMA_PORT_CSS_ADDRESS 0x3fffff | |
22 | #define DMA_PORT_CSS_MAX_SIZE SZ_128 | |
23 | ||
24 | struct tb_dma_port *dma_port_alloc(struct tb_switch *sw); | |
25 | void dma_port_free(struct tb_dma_port *dma); | |
26 | int dma_port_flash_read(struct tb_dma_port *dma, unsigned int address, | |
27 | void *buf, size_t size); | |
28 | int dma_port_flash_update_auth(struct tb_dma_port *dma); | |
29 | int dma_port_flash_update_auth_status(struct tb_dma_port *dma, u32 *status); | |
30 | int dma_port_flash_write(struct tb_dma_port *dma, unsigned int address, | |
31 | const void *buf, size_t size); | |
32 | int dma_port_power_cycle(struct tb_dma_port *dma); | |
33 | ||
34 | #endif |