/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Congatec Board Controller driver definitions
 *
 * Copyright (C) 2024 Bootlin
 * Author: Thomas Richard <thomas.richard@bootlin.com>
 */

#ifndef _LINUX_MFD_CGBC_H_

/**
 * struct cgbc_version - Board Controller device version structure
 * @feature:    Board Controller feature number
 * @major:      Board Controller major revision
 * @minor:      Board Controller minor revision
 */
struct cgbc_version {
        unsigned char feature;
        unsigned char major;
        unsigned char minor;
};

/**
 * struct cgbc_device_data - Internal representation of the Board Controller device
 * @io_session:         Pointer to the session IO memory
 * @io_cmd:             Pointer to the command IO memory
 * @session:            Session id returned by the Board Controller
 * @dev:                Pointer to kernel device structure
 * @cgbc_version:       Board Controller version structure
 * @mutex:              Board Controller mutex
 */
struct cgbc_device_data {
        void __iomem            *io_session;
        void __iomem            *io_cmd;
        u8                      session;
        struct device           *dev;
        struct cgbc_version     version;
        struct mutex            lock;
};

int cgbc_command(struct cgbc_device_data *cgbc, void *cmd, unsigned int cmd_size,
                 void *data, unsigned int data_size, u8 *status);

#endif /*_LINUX_MFD_CGBC_H_*/