diff options
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/cbfs.h | 37 | ||||
| -rw-r--r-- | src/include/cbfs_core.h | 72 | ||||
| -rw-r--r-- | src/include/endian.h | 25 |
3 files changed, 108 insertions, 26 deletions
diff --git a/src/include/cbfs.h b/src/include/cbfs.h index b33e9327a8..9bfe2ceb96 100644 --- a/src/include/cbfs.h +++ b/src/include/cbfs.h @@ -2,6 +2,7 @@ * 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 @@ -49,14 +50,38 @@ #ifndef _CBFS_H_ #define _CBFS_H_ -#include "cbfs_core.h" -#include <boot/coreboot_tables.h> +#include <cbfs_core.h> -void *cbfs_load_payload(struct lb_memory *lb_mem, const char *name); -void *cbfs_load_stage(const char *name); -int cbfs_execute_stage(const char *name); -void *cbfs_load_optionrom(u16 vendor, u16 device, void * dest); +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); + #endif diff --git a/src/include/cbfs_core.h b/src/include/cbfs_core.h index a3c54b18f7..20636e244a 100644 --- a/src/include/cbfs_core.h +++ b/src/include/cbfs_core.h @@ -3,6 +3,7 @@ * * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net> * Copyright (C) 2012 Google, Inc. + * 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 @@ -50,6 +51,10 @@ #ifndef _CBFS_CORE_H_ #define _CBFS_CORE_H_ +#include <endian.h> +#include <stddef.h> +#include <stdint.h> + /** These are standard values for the known compression alogrithms that coreboot knows about for stages and payloads. Of course, other CBFS users can use whatever @@ -74,24 +79,18 @@ #define CBFS_COMPONENT_CMOS_DEFAULT 0xaa #define CBFS_COMPONENT_CMOS_LAYOUT 0x01aa - -/** this is the master cbfs header - it need to be - located somewhere in the bootblock. Where it - actually lives is up to coreboot. On x86, a - pointer to this header will live at 0xFFFFFFFC, - so we can easily find it. */ - #define CBFS_HEADER_MAGIC 0x4F524243 -#if CONFIG_ARCH_X86 -#define CBFS_HEADPTR_ADDR 0xFFFFFFFC -#elif CONFIG_ARCH_ARMV7 -/* FIXME: This could also be 0xFFFF0000 with HIVECS enabled */ -#define CBFS_HEADPTR_ADDR 0x0000000C -#endif #define CBFS_HEADER_VERSION1 0x31313131 #define CBFS_HEADER_VERSION2 0x31313132 #define CBFS_HEADER_VERSION CBFS_HEADER_VERSION2 +#define CBFS_HEADER_INVALID_ADDRESS ((void*)(0xffffffff)) + +/** this is the master cbfs header - it need to be located somewhere available + to bootblock (to load romstage). Where it actually lives is up to coreboot. + On x86, a pointer to this header will live at 0xFFFFFFFC. + For other platforms, you need to define CONFIG_CBFS_HEADER_ROM_OFFSET */ + struct cbfs_header { uint32_t magic; uint32_t version; @@ -181,16 +180,49 @@ struct cbfs_optionrom { #define CBFS_NAME(_c) (((char *) (_c)) + sizeof(struct cbfs_file)) #define CBFS_SUBHEADER(_p) ( (void *) ((((uint8_t *) (_p)) + ntohl((_p)->offset))) ) -/* returns pointer to file inside CBFS or NULL */ -struct cbfs_file *cbfs_find(const char *name); +#define CBFS_MEDIA_INVALID_MAP_ADDRESS ((void*)(0xffffffff)) +#define CBFS_DEFAULT_MEDIA ((void*)(0x0)) + +/* Media for CBFS to load files. */ +struct cbfs_media { + + /* implementation dependent context, to hold resource references */ + void *context; -/* returns pointer to file data inside CBFS */ -void *cbfs_get_file(const char *name); + /* opens media and returns 0 on success, -1 on failure */ + int (*open)(struct cbfs_media *media); -/* returns pointer to file data inside CBFS after if type is correct */ -void *cbfs_find_file(const char *name, int type); + /* returns number of bytes read from media into dest, starting from + * offset for count of bytes */ + size_t (*read)(struct cbfs_media *media, void *dest, size_t offset, + size_t count); + + /* returns a pointer to memory with count of bytes from media source + * starting from offset, or CBFS_MEDIA_INVALID_MAP_ADDRESS on failure. + * Note: mapped data can't be free unless unmap is called, even if you + * do close first. */ + void * (*map)(struct cbfs_media *media, size_t offset, size_t count); + + /* returns NULL and releases the memory by address, which was allocated + * by map */ + void * (*unmap)(struct cbfs_media *media, const void *address); + + /* closes media and returns 0 on success, -1 on failure. */ + int (*close)(struct cbfs_media *media); +}; + +/* returns pointer to a file entry inside CBFS or NULL */ +struct cbfs_file *cbfs_get_file(struct cbfs_media *media, const char *name); + +/* returns pointer to file content inside CBFS after if type is correct */ +void *cbfs_get_file_content(struct cbfs_media *media, const char *name, + int type); /* returns 0 on success, -1 on failure */ int cbfs_decompress(int algo, void *src, void *dst, int len); -struct cbfs_header *get_cbfs_header(void); + +/* returns a pointer to CBFS master header, or CBFS_HEADER_INVALID_ADDRESS + * on failure */ +const struct cbfs_header *cbfs_get_header(struct cbfs_media *media); + #endif diff --git a/src/include/endian.h b/src/include/endian.h new file mode 100644 index 0000000000..b511a491a8 --- /dev/null +++ b/src/include/endian.h @@ -0,0 +1,25 @@ +/* + * Copyright (C) 2013 The Chromium OS Authors. All rights reserved. + * + * 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 2 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, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _ENDIAN_H_ +#define _ENDIAN_H_ + +#include <arch/byteorder.h> + +#endif |