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fd3b339c | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
3e136768 MW |
2 | /* |
3 | * Thunderbolt DMA configuration based mailbox support | |
4 | * | |
5 | * Copyright (C) 2017, Intel Corporation | |
6 | * Authors: Michael Jamet <michael.jamet@intel.com> | |
7 | * Mika Westerberg <mika.westerberg@linux.intel.com> | |
3e136768 MW |
8 | */ |
9 | ||
10 | #ifndef DMA_PORT_H_ | |
11 | #define DMA_PORT_H_ | |
12 | ||
13 | #include "tb.h" | |
14 | ||
15 | struct tb_switch; | |
16 | struct tb_dma_port; | |
17 | ||
18 | #define DMA_PORT_CSS_ADDRESS 0x3fffff | |
19 | #define DMA_PORT_CSS_MAX_SIZE SZ_128 | |
20 | ||
21 | struct tb_dma_port *dma_port_alloc(struct tb_switch *sw); | |
22 | void dma_port_free(struct tb_dma_port *dma); | |
23 | int dma_port_flash_read(struct tb_dma_port *dma, unsigned int address, | |
24 | void *buf, size_t size); | |
25 | int dma_port_flash_update_auth(struct tb_dma_port *dma); | |
26 | int dma_port_flash_update_auth_status(struct tb_dma_port *dma, u32 *status); | |
27 | int dma_port_flash_write(struct tb_dma_port *dma, unsigned int address, | |
28 | const void *buf, size_t size); | |
29 | int dma_port_power_cycle(struct tb_dma_port *dma); | |
30 | ||
31 | #endif |