| /* |
| * 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, |
| */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <unistd.h> |
| |
| #include "lib/flashrom.h" |
| |
| /* The best choice is PATH_MAX. However, it leads portibility issue. |
| * So, define a long enough length here. */ |
| #define CMD_BUF_SIZE (4096) |
| |
| static uint8_t flashrom_cmd[] = "flashrom"; |
| |
| /* The argument for flashrom. |
| * bus=spi: The VPD data are stored in BIOS flash, which is attached |
| * to the SPI bus. |
| */ |
| static uint8_t flashrom_arguments[] = " -p internal:bus=spi "; |
| |
| int flashromFullRead(const char* full_file) { |
| char cmd[CMD_BUF_SIZE]; |
| int ret = 0; |
| |
| snprintf(cmd, sizeof(cmd), "%s %s -r '%s' >/dev/null 2>&1", |
| flashrom_cmd, flashrom_arguments, full_file); |
| ret = system(cmd); |
| if (ret == 0) |
| return FLASHROM_OK; |
| else |
| return FLASHROM_FAIL; |
| } |
| |
| int flashromPartialRead(const char* part_file, const char* full_file, |
| const char* partition_name) { |
| char cmd[CMD_BUF_SIZE]; |
| int ret = 0; |
| |
| snprintf(cmd, sizeof(cmd), "%s %s -i FMAP -i '%s':'%s' " |
| "-r '%s' >/dev/null 2>&1", |
| flashrom_cmd, flashrom_arguments, |
| partition_name, part_file, full_file); |
| ret = system(cmd); |
| if (ret == 0) |
| return FLASHROM_OK; |
| else |
| return FLASHROM_FAIL; |
| } |
| |
| int flashromPartialWrite(const char* part_file, const char* full_file, |
| const char* partition_name) { |
| int fd; |
| char cmd[CMD_BUF_SIZE]; |
| FILE* fp; |
| int ret = 0; |
| |
| /* write it back */ |
| snprintf(cmd, sizeof(cmd), "%s %s -i '%s':'%s' -w '%s' >/tmp/null 2>&1", |
| flashrom_cmd, flashrom_arguments, |
| partition_name, part_file, full_file); |
| ret = system(cmd); |
| |
| if (ret == 0) |
| return FLASHROM_OK; |
| else |
| return FLASHROM_FAIL; |
| } |