e08991e02a
Remove support for the HTC-specific "firmware" update command and the corresponding edify function write_firmware_update(). This functionality is now done by an edify extension library that lives in vendor/htc. Change-Id: I80858951ff10ed8dfff98aefb796bef009e05efb
121 lines
3.6 KiB
C
121 lines
3.6 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "bootloader.h"
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#include "common.h"
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#include "mtdutils/mtdutils.h"
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#include "roots.h"
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#include <errno.h>
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#include <stdio.h>
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#include <string.h>
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static const char *CACHE_NAME = "CACHE:";
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static const char *MISC_NAME = "MISC:";
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static const int MISC_PAGES = 3; // number of pages to save
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static const int MISC_COMMAND_PAGE = 1; // bootloader command is this page
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#ifdef LOG_VERBOSE
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static void dump_data(const char *data, int len) {
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int pos;
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for (pos = 0; pos < len; ) {
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printf("%05x: %02x", pos, data[pos]);
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for (++pos; pos < len && (pos % 24) != 0; ++pos) {
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printf(" %02x", data[pos]);
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}
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printf("\n");
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}
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}
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#endif
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int get_bootloader_message(struct bootloader_message *out) {
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size_t write_size;
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const MtdPartition *part = get_root_mtd_partition(MISC_NAME);
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if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) {
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LOGE("Can't find %s\n", MISC_NAME);
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return -1;
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}
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MtdReadContext *read = mtd_read_partition(part);
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if (read == NULL) {
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LOGE("Can't open %s\n(%s)\n", MISC_NAME, strerror(errno));
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return -1;
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}
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const ssize_t size = write_size * MISC_PAGES;
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char data[size];
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ssize_t r = mtd_read_data(read, data, size);
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if (r != size) LOGE("Can't read %s\n(%s)\n", MISC_NAME, strerror(errno));
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mtd_read_close(read);
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if (r != size) return -1;
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#ifdef LOG_VERBOSE
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printf("\n--- get_bootloader_message ---\n");
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dump_data(data, size);
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printf("\n");
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#endif
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memcpy(out, &data[write_size * MISC_COMMAND_PAGE], sizeof(*out));
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return 0;
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}
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int set_bootloader_message(const struct bootloader_message *in) {
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size_t write_size;
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const MtdPartition *part = get_root_mtd_partition(MISC_NAME);
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if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) {
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LOGE("Can't find %s\n", MISC_NAME);
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return -1;
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}
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MtdReadContext *read = mtd_read_partition(part);
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if (read == NULL) {
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LOGE("Can't open %s\n(%s)\n", MISC_NAME, strerror(errno));
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return -1;
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}
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ssize_t size = write_size * MISC_PAGES;
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char data[size];
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ssize_t r = mtd_read_data(read, data, size);
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if (r != size) LOGE("Can't read %s\n(%s)\n", MISC_NAME, strerror(errno));
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mtd_read_close(read);
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if (r != size) return -1;
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memcpy(&data[write_size * MISC_COMMAND_PAGE], in, sizeof(*in));
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#ifdef LOG_VERBOSE
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printf("\n--- set_bootloader_message ---\n");
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dump_data(data, size);
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printf("\n");
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#endif
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MtdWriteContext *write = mtd_write_partition(part);
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if (write == NULL) {
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LOGE("Can't open %s\n(%s)\n", MISC_NAME, strerror(errno));
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return -1;
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}
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if (mtd_write_data(write, data, size) != size) {
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LOGE("Can't write %s\n(%s)\n", MISC_NAME, strerror(errno));
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mtd_write_close(write);
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return -1;
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}
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if (mtd_write_close(write)) {
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LOGE("Can't finish %s\n(%s)\n", MISC_NAME, strerror(errno));
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return -1;
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}
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LOGI("Set boot command \"%s\"\n", in->command[0] != 255 ? in->command : "");
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return 0;
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}
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