diff options
Diffstat (limited to 'payloads/libpayload/include')
| -rw-r--r-- | payloads/libpayload/include/fmap_serialized.h | 73 | ||||
| -rw-r--r-- | payloads/libpayload/include/libpayload.h | 5 |
2 files changed, 78 insertions, 0 deletions
diff --git a/payloads/libpayload/include/fmap_serialized.h b/payloads/libpayload/include/fmap_serialized.h new file mode 100644 index 0000000000..3585f0bc84 --- /dev/null +++ b/payloads/libpayload/include/fmap_serialized.h @@ -0,0 +1,73 @@ +/* + * Copyright 2010, Google Inc. + * 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 Google Inc. 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 + * OWNER 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. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + */ + +#ifndef FLASHMAP_SERIALIZED_H__ +#define FLASHMAP_SERIALIZED_H__ + +#include <stdint.h> + +#define FMAP_SIGNATURE "__FMAP__" +#define FMAP_VER_MAJOR 1 /* this header's FMAP minor version */ +#define FMAP_VER_MINOR 1 /* this header's FMAP minor version */ +#define FMAP_STRLEN 32 /* maximum length for strings, */ + /* including null-terminator */ + +enum fmap_flags { + FMAP_AREA_STATIC = 1 << 0, + FMAP_AREA_COMPRESSED = 1 << 1, + FMAP_AREA_RO = 1 << 2, +}; + +/* Mapping of volatile and static regions in firmware binary */ +struct fmap_area { + uint32_t offset; /* offset relative to base */ + uint32_t size; /* size in bytes */ + uint8_t name[FMAP_STRLEN]; /* descriptive name */ + uint16_t flags; /* flags for this area */ +} __attribute__((packed)); + +struct fmap { + uint8_t signature[8]; /* "__FMAP__" (0x5F5F464D41505F5F) */ + uint8_t ver_major; /* major version */ + uint8_t ver_minor; /* minor version */ + uint64_t base; /* address of the firmware binary */ + uint32_t size; /* size of firmware binary in bytes */ + uint8_t name[FMAP_STRLEN]; /* name of this firmware binary */ + uint16_t nareas; /* number of areas described by + fmap_areas[] below */ + struct fmap_area areas[]; +} __attribute__((packed)); + +#endif /* FLASHMAP_SERIALIZED_H__ */ diff --git a/payloads/libpayload/include/libpayload.h b/payloads/libpayload/include/libpayload.h index 8f17b58fcb..5e787e1ff7 100644 --- a/payloads/libpayload/include/libpayload.h +++ b/payloads/libpayload/include/libpayload.h @@ -47,6 +47,7 @@ #include <ctype.h> #include <die.h> #include <endian.h> +#include <fmap_serialized.h> #include <ipchksum.h> #include <kconfig.h> #include <stddef.h> @@ -405,4 +406,8 @@ void gdb_enter(void); /* Disconnect existing GDB connection if one exists. */ void gdb_exit(s8 exit_status); +/* look for area "name" in "fmap", setting offset and size to describe it. + Returns 0 on success, < 0 on error. */ +int fmap_region_by_name(const uint32_t fmap_offset, const char * const name, + uint32_t * const offset, uint32_t * const size); #endif |