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- /* SPDX-License-Identifier: GPL-2.0 */
- /*
- * Thunderbolt DMA configuration based mailbox support
- *
- * Copyright (C) 2017, Intel Corporation
- * Authors: Michael Jamet <[email protected]>
- * Mika Westerberg <[email protected]>
- */
- #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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