From d01d0368f492b84ea093875f918086a23bc0ec7a Mon Sep 17 00:00:00 2001 From: Hung-Te Lin Date: Fri, 25 Jan 2013 12:42:40 +0800 Subject: libpayload: New CBFS to support multiple firmware media sources. Upgrade CBFS in libpayload to use new media-based implementation from coreboot ( http://review.coreboot.org/#/c/2182/ ). Old CBFS functions (cbfs_find, cbfs_find_file, get_cbfs_header) are still supported, although the recommended way is to use new CBFS API. To migrate your existing x86 payload source: - Change cbfs_find to cbfs_get_file - Change cbfs_find_file to cbfs_get_file_content - Prefix every CBFS call with a CBFS_DEFAULT_MEDIA argument. Ex, char *jpeg_data = cbfs_find_file("splash.jpg", CBFS_TYPE_BOOTSPLASH); => char *jpeg_data = cbfs_get_file_content( CBFS_DEFAULT_MEDIA, "splash.jpg", CBFS_TYPE_BOOTSPLASH); The legacy setup_cbfs_from_{ram,flash} is also supported, although the better equivalent is to make a new media instance: struct cbfs_media ram_media; init_cbfs_ram_media(&ram_media, start, size); char *data = cbfs_get_file_content(&ram_media, "myfile", my_type); Verified by being successfully linked with filo. Change-Id: If797bc7e3ba975d7e3be905c59424f7a93b8ce11 Signed-off-by: Hung-Te Lin Reviewed-on: http://review.coreboot.org/2191 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel Reviewed-by: Anton Kochkov --- payloads/libpayload/include/cbfs.h | 102 ++++++++++++++++++++++++++++++++----- 1 file changed, 89 insertions(+), 13 deletions(-) (limited to 'payloads/libpayload/include/cbfs.h') diff --git a/payloads/libpayload/include/cbfs.h b/payloads/libpayload/include/cbfs.h index cf0584ec73..df3bb1c8c8 100644 --- a/payloads/libpayload/include/cbfs.h +++ b/payloads/libpayload/include/cbfs.h @@ -1,16 +1,92 @@ -#include +/* + * This file is part of the libpayload project. + * + * Copyright (C) 2008 Jordan Crouse + * Copyright (C) 2013 Google, Inc. + * + * 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 + +/* legacy APIs */ +const struct cbfs_header *get_cbfs_header(void); +struct cbfs_file *cbfs_find(const char *name); +void *cbfs_find_file(const char *name, int type); + +int cbfs_execute_stage(struct cbfs_media *media, const char *name); +void *cbfs_load_optionrom(struct cbfs_media *media, uint16_t vendor, + uint16_t device, void * dest); +void *cbfs_load_payload(struct cbfs_media *media, const char *name); +void *cbfs_load_stage(struct cbfs_media *media, const char *name); + +/* 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); + +// Utility functions +int run_address(void *f); + +/* Defined in src/lib/selfboot.c */ +struct lb_memory; +int selfboot(struct lb_memory *mem, struct cbfs_payload *payload); + +/* Defined in individual arch / board implementation. */ +int init_default_cbfs_media(struct cbfs_media *media); -/* FIXME: workaround for coreboot/libpayload Kconfig differences */ -#ifndef CONFIG_ARCH_ARMV7 -#define CONFIG_ARCH_ARMV7 0 -#endif -#ifndef CONFIG_ARCH_POWERPC -#define CONFIG_ARCH_POWERPC 0 -#endif -#ifndef CONFIG_ARCH_X86 -#define CONFIG_ARCH_X86 0 #endif -#include "cbfs_core.h" -void setup_cbfs_from_ram(void* start, uint32_t size); -void setup_cbfs_from_flash(void); -- cgit v1.2.3