/* 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