blob: c4a69e0fbff71245ff840361da119bbaefc9467e [file] [log] [blame]
* Thunderbolt DMA configuration based mailbox support
* Copyright (C) 2017, Intel Corporation
* Authors: Michael Jamet <>
* Mika Westerberg <>
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
#ifndef DMA_PORT_H_
#define DMA_PORT_H_
#include "tb.h"
struct tb_switch;
struct tb_dma_port;
#define DMA_PORT_CSS_ADDRESS 0x3fffff
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);