/*-
 * Copyright (c) 2017 Marius Strobl <marius@FreeBSD.org>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef _DEV_MMC_MMC_IOCTL_H_
#define _DEV_MMC_MMC_IOCTL_H_

struct mmc_ioc_cmd {
        int             write_flag; /* 0: RD, 1: WR, (1 << 31): reliable WR */
        int             is_acmd;    /* 0: normal, 1: use CMD55 */
        uint32_t        opcode;
        uint32_t        arg;
        uint32_t        response[4];
        u_int           flags;
        u_int           blksz;
        u_int           blocks;
        u_int           __spare[4];
        uint32_t        __pad;
        uint64_t        data_ptr;
};

#define mmc_ioc_cmd_set_data(mic, ptr)                                  \
    (mic).data_ptr = (uint64_t)(uintptr_t)(ptr)

struct mmc_ioc_multi_cmd {
        uint64_t                num_of_cmds;
        struct mmc_ioc_cmd      cmds[0];
};

#define MMC_IOC_BASE            'M'

#define MMC_IOC_CMD             _IOWR(MMC_IOC_BASE, 0, struct mmc_ioc_cmd)
#define MMC_IOC_MULTI_CMD       _IOWR(MMC_IOC_BASE, 1, struct mmc_ioc_multi_cmd)

/* Maximum accepted data transfer size */
#define MMC_IOC_MAX_BYTES       (512  * 256)
/* Maximum accepted number of commands */
#define MMC_IOC_MAX_CMDS        255

#endif /* _DEV_MMC_MMC_IOCTL_H_ */