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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Thunderbolt DMA configuration based mailbox support
*
* Copyright (C) 2017, Intel Corporation
* Authors: Michael Jamet <michael.jamet@intel.com>
* Mika Westerberg <mika.westerberg@linux.intel.com>
*/
#ifndef DMA_PORT_H_
#define DMA_PORT_H_
#include "tb.h"
struct tb_switch;
struct tb_dma_port;
#define DMA_PORT_CSS_ADDRESS 0x3fffff
#define DMA_PORT_CSS_MAX_SIZE SZ_128
struct tb_dma_port *dma_port_alloc(struct tb_switch *sw);
void dma_port_free(struct tb_dma_port *dma);
int dma_port_flash_read(struct tb_dma_port *dma, unsigned int address,
void *buf, size_t size);
int dma_port_flash_update_auth(struct tb_dma_port *dma);
int dma_port_flash_update_auth_status(struct tb_dma_port *dma, u32 *status);
int dma_port_flash_write(struct tb_dma_port *dma, unsigned int address,
const void *buf, size_t size);
int dma_port_power_cycle(struct tb_dma_port *dma);
#endif
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