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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
* Copyright (C) 2013 The Chromium OS Authors. All rights reserved.
*
* This file is dual-licensed. You can choose between:
* - The GNU GPL, version 2, as published by the Free Software Foundation
* - The revised BSD license (without advertising clause)
*
* ---------------------------------------------------------------------------
* 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; version 2 of the License.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
* ---------------------------------------------------------------------------
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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 _CBFS_H_
#define _CBFS_H_
#include <cbfs_core.h>
int init_backing_media(struct cbfs_media **media, struct cbfs_media *backing);
void *cbfs_load_optionrom(struct cbfs_media *media, uint16_t vendor,
uint16_t device, void * dest);
void *cbfs_load_stage(struct cbfs_media *media, const char *name);
void *cbfs_load_stage_by_offset(struct cbfs_media *media, ssize_t offset);
/* Simple buffer for streaming media. */
struct cbfs_simple_buffer {
char *buffer;
size_t allocated;
size_t size;
size_t last_allocate;
};
void *cbfs_simple_buffer_map(struct cbfs_simple_buffer *buffer,
struct cbfs_media *media,
size_t offset, size_t count);
void *cbfs_simple_buffer_unmap(struct cbfs_simple_buffer *buffer,
const void *address);
/* Defined in individual arch / board implementation. */
int init_default_cbfs_media(struct cbfs_media *media);
#if defined(__PRE_RAM__)
struct romstage_handoff;
struct cbmem_entry;
#if CONFIG_RELOCATABLE_RAMSTAGE && defined(__PRE_RAM__)
/* The cache_loaded_ramstage() and load_cached_ramstage() functions are defined
* to be weak so that board and chipset code may override them. Their job is to
* cache and load the ramstage for quick S3 resume. By default a copy of the
* relocated ramstage is saved using the cbmem infrastructure. These
* functions are only valid during romstage. */
/* The implementer of cache_loaded_ramstage() may use the romstage_handoff
* structure to store information, but note that the handoff variable can be
* NULL. The ramstage cbmem_entry represents the region occupied by the loaded
* ramstage. */
void cache_loaded_ramstage(struct romstage_handoff *handoff,
const struct cbmem_entry *ramstage, void *entry_point);
/* Return NULL on error or entry point on success. The ramstage cbmem_entry is
* the region where to load the cached contents to. */
void * load_cached_ramstage(struct romstage_handoff *handoff,
const struct cbmem_entry *ramstage);
#else /* CONFIG_RELOCATABLE_RAMSTAGE */
static inline void cache_loaded_ramstage(struct romstage_handoff *handoff,
const struct cbmem_entry *ramstage, void *entry_point)
{
}
static inline void *
load_cached_ramstage(struct romstage_handoff *handoff,
const struct cbmem_entry *ramstage)
{
return NULL;
}
#endif /* CONFIG_RELOCATABLE_RAMSTAGE */
#endif /* defined(__PRE_RAM__) */
#endif
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