linux-imx

/* SPDX-License-Identifier: GPL-2.0 */

/*

 * Thunderbolt driver - bus logic (NHI independent)

 *

 * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com>

 * Copyright (C) 2018, Intel Corporation

 */

​

#ifndef TB_H_

#define TB_H_

​

#include <linux/nvmem-provider.h>

#include <linux/pci.h>

#include <linux/thunderbolt.h>

#include <linux/uuid.h>

​

#include "tb_regs.h"

#include "ctl.h"

#include "dma_port.h"

​

/**

 * struct tb_switch_nvm - Structure holding switch NVM information

 * @major: Major version number of the active NVM portion

 * @minor: Minor version number of the active NVM portion

 * @id: Identifier used with both NVM portions

 * @active: Active portion NVMem device

 * @non_active: Non-active portion NVMem device

 * @buf: Buffer where the NVM image is stored before it is written to

 *   the actual NVM flash device

 * @buf_data_size: Number of bytes actually consumed by the new NVM

 *         image

 * @authenticating: The switch is authenticating the new NVM

 */

struct tb_switch_nvm {

    u8 major;

    u8 minor;

    int id;

    struct nvmem_device *active;

    struct nvmem_device *non_active;

    void *buf;

    size_t buf_data_size;

    bool authenticating;

};

​

#define TB_SWITCH_KEY_SIZE      32

​

/**

 * struct tb_switch - a thunderbolt switch

 * @dev: Device for the switch

 * @config: Switch configuration

 * @ports: Ports in this switch

 * @dma_port: If the switch has port supporting DMA configuration based

 *        mailbox this will hold the pointer to that (%NULL

 *        otherwise). If set it also means the switch has

 *        upgradeable NVM.

 * @tb: Pointer to the domain the switch belongs to

 * @uid: Unique ID of the switch

 * @uuid: UUID of the switch (or %NULL if not supported)

 * @vendor: Vendor ID of the switch

 * @device: Device ID of the switch

 * @vendor_name: Name of the vendor (or %NULL if not known)

 * @device_name: Name of the device (or %NULL if not known)

 * @generation: Switch Thunderbolt generation