/*

   Copyright (C) 2010, 2012, 2017 Rocky Bernstein <rocky@gnu.org>

   This program is free software: you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation, either version 3 of the License, or

   (at your option) any later version.

   This program is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.

*/

#ifndef CDIO_DRIVER_MMC_CMD_HELPER_H_

#define CDIO_DRIVER_MMC_CMD_HELPER_H_

/* Boilerplate initialization code to setup running MMC command.  We

   assume variables 'p_cdio', 'p_buf', and 'i_size' are previously

   defined.  It does the following:

   1. Defines a cdb variable,

   2. zeros cdb variable

   3  Checks to see if we have a cdio object and can run an MMC command

   4. Sets up the command field of cdb to passed in value mmc_cmd.

*/

#define MMC_CMD_SETUP(mmc_cmd)                                          \

    mmc_cdb_t cdb = {{0, }};                                            \

                                                                        \

    if ( ! p_cdio ) return DRIVER_OP_UNINIT;                            \

    if ( ! p_cdio->op.run_mmc_cmd ) return DRIVER_OP_UNSUPPORTED;       \

                                                                        \

    CDIO_MMC_SET_COMMAND(cdb.field, mmc_cmd)

/* Boilerplate initialization code to setup running MMC read command

   needs to set the cdb 16-bit length field. See above

   comment for MMC_CMD_SETUP.

*/

#define MMC_CMD_SETUP_READ16(mmc_cmd)                                   \

    MMC_CMD_SETUP(mmc_cmd);                                             \

                                                                        \

    /* Setup to read header, to get length of data */                   \

    CDIO_MMC_SET_READ_LENGTH16(cdb.field, i_size)

/* Boilerplate code to run a MMC command.

   We assume variables 'p_cdio', 'mmc_timeout_ms', 'cdb', 'i_size' and

   'p_buf' are defined previously.

   'direction' is the SCSI direction (read, write, none) of the

   command.

*/

#define MMC_RUN_CMD(direction, i_timeout)                               \

    p_cdio->op.run_mmc_cmd(p_cdio->env,                                 \

        i_timeout,                                                      \

        mmc_get_cmd_len(cdb.field[0]),                                  \

        &cdb,                                                           \

        direction, i_size, p_buf)

#endif /* CDIO_DRIVER_MMC_CMD_HELPER_H_ */