1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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> |
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 |
32 | |