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
15struct tb_switch;
16struct tb_dma_port;
17
18#define DMA_PORT_CSS_ADDRESS		0x3fffff
19#define DMA_PORT_CSS_MAX_SIZE		SZ_128
20
21struct tb_dma_port *dma_port_alloc(struct tb_switch *sw);
22void dma_port_free(struct tb_dma_port *dma);
23int dma_port_flash_read(struct tb_dma_port *dma, unsigned int address,
24			void *buf, size_t size);
25int dma_port_flash_update_auth(struct tb_dma_port *dma);
26int dma_port_flash_update_auth_status(struct tb_dma_port *dma, u32 *status);
27int dma_port_flash_write(struct tb_dma_port *dma, unsigned int address,
28			 const void *buf, size_t size);
29int dma_port_power_cycle(struct tb_dma_port *dma);
30
31#endif

 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
15struct tb_switch;
16struct tb_dma_port;
17
18#define DMA_PORT_CSS_ADDRESS		0x3fffff
19#define DMA_PORT_CSS_MAX_SIZE		SZ_128
20
21struct tb_dma_port *dma_port_alloc(struct tb_switch *sw);
22void dma_port_free(struct tb_dma_port *dma);
23int dma_port_flash_read(struct tb_dma_port *dma, unsigned int address,
24			void *buf, size_t size);
25int dma_port_flash_update_auth(struct tb_dma_port *dma);
26int dma_port_flash_update_auth_status(struct tb_dma_port *dma, u32 *status);
27int dma_port_flash_write(struct tb_dma_port *dma, unsigned int address,
28			 const void *buf, size_t size);
29int dma_port_power_cycle(struct tb_dma_port *dma);
30
31#endif