include/common/param_header.h

/*
 * Copyright (c) 2017, ARM Limited and Contributors. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * 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.
 *
 * Neither the name of ARM nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific
 * prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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 __PARAM_HEADER_H__
#define __PARAM_HEADER_H__

/* Param header types */
#define PARAM_EP		0x01
#define PARAM_IMAGE_BINARY	0x02
#define PARAM_BL31		0x03
#define PARAM_BL_LOAD_INFO	0x04
#define PARAM_BL_PARAMS		0x05
#define PARAM_PSCI_LIB_ARGS	0x06

/* Param header version */
#define VERSION_1	0x01
#define VERSION_2	0x02

#define SET_PARAM_HEAD(_p, _type, _ver, _attr) do { \
	(_p)->h.type = (uint8_t)(_type); \
	(_p)->h.version = (uint8_t)(_ver); \
	(_p)->h.size = (uint16_t)sizeof(*_p); \
	(_p)->h.attr = (uint32_t)(_attr) ; \
	} while (0)

/* Following is used for populating structure members statically. */
#define SET_STATIC_PARAM_HEAD(_p, _type, _ver, _p_type, _attr)	\
	._p.h.type = (uint8_t)(_type), \
	._p.h.version = (uint8_t)(_ver), \
	._p.h.size = (uint16_t)sizeof(_p_type), \
	._p.h.attr = (uint32_t)(_attr)

#ifndef __ASSEMBLY__

#include <types.h>

/***************************************************************************
 * This structure provides version information and the size of the
 * structure, attributes for the structure it represents
 ***************************************************************************/
typedef struct param_header {
	uint8_t type;		/* type of the structure */
	uint8_t version;    /* version of this structure */
	uint16_t size;      /* size of this structure in bytes */
	uint32_t attr;      /* attributes: unused bits SBZ */
} param_header_t;

#endif /*__ASSEMBLY__*/

#endif /* __PARAM_HEADER_H__ */