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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*/
#include <cbfs.h>
#include <string.h>
#include <console/console.h>
/* Simple memory-mapped ROM emulation. */
static int emu_rom_open(struct cbfs_media *media) {
return 0;
}
static void *emu_rom_map(struct cbfs_media *media, size_t offset, size_t count) {
return (void*)(offset + CONFIG_BOOTBLOCK_BASE);
}
static void *emu_rom_unmap(struct cbfs_media *media, const void *address) {
return NULL;
}
static size_t emu_rom_read(struct cbfs_media *media, void *dest, size_t offset,
size_t count) {
void *ptr = emu_rom_map(media, offset, count);
memcpy(dest, ptr, count);
emu_rom_unmap(media, ptr);
return count;
}
static int emu_rom_close(struct cbfs_media *media) {
return 0;
}
int init_emu_rom_cbfs_media(struct cbfs_media *media);
int init_emu_rom_cbfs_media(struct cbfs_media *media) {
media->open = emu_rom_open;
media->close = emu_rom_close;
media->map = emu_rom_map;
media->unmap = emu_rom_unmap;
media->read = emu_rom_read;
return 0;
}
int init_default_cbfs_media(struct cbfs_media *media) {
return init_emu_rom_cbfs_media(media);
}
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