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-rw-r--r--bootloader.c202
1 files changed, 0 insertions, 202 deletions
diff --git a/bootloader.c b/bootloader.c
deleted file mode 100644
index baaddc55f..000000000
--- a/bootloader.c
+++ /dev/null
@@ -1,202 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "bootloader.h"
-#include "common.h"
-#include "mtdutils/mtdutils.h"
-#include "roots.h"
-
-#include <errno.h>
-#include <stdio.h>
-#include <string.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-static int get_bootloader_message_mtd(struct bootloader_message *out, const Volume* v);
-static int set_bootloader_message_mtd(const struct bootloader_message *in, const Volume* v);
-static int get_bootloader_message_block(struct bootloader_message *out, const Volume* v);
-static int set_bootloader_message_block(const struct bootloader_message *in, const Volume* v);
-
-int get_bootloader_message(struct bootloader_message *out) {
- Volume* v = volume_for_path("/misc");
- if (v == NULL) {
- LOGE("Cannot load volume /misc!\n");
- return -1;
- }
- if (strcmp(v->fs_type, "mtd") == 0) {
- return get_bootloader_message_mtd(out, v);
- } else if (strcmp(v->fs_type, "emmc") == 0) {
- return get_bootloader_message_block(out, v);
- }
- LOGE("unknown misc partition fs_type \"%s\"\n", v->fs_type);
- return -1;
-}
-
-int set_bootloader_message(const struct bootloader_message *in) {
- Volume* v = volume_for_path("/misc");
- if (v == NULL) {
- LOGE("Cannot load volume /misc!\n");
- return -1;
- }
- if (strcmp(v->fs_type, "mtd") == 0) {
- return set_bootloader_message_mtd(in, v);
- } else if (strcmp(v->fs_type, "emmc") == 0) {
- return set_bootloader_message_block(in, v);
- }
- LOGE("unknown misc partition fs_type \"%s\"\n", v->fs_type);
- return -1;
-}
-
-// ------------------------------
-// for misc partitions on MTD
-// ------------------------------
-
-static const int MISC_PAGES = 3; // number of pages to save
-static const int MISC_COMMAND_PAGE = 1; // bootloader command is this page
-
-static int get_bootloader_message_mtd(struct bootloader_message *out,
- const Volume* v) {
- size_t write_size;
- mtd_scan_partitions();
- const MtdPartition *part = mtd_find_partition_by_name(v->device);
- if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) {
- LOGE("Can't find %s\n", v->device);
- return -1;
- }
-
- MtdReadContext *read = mtd_read_partition(part);
- if (read == NULL) {
- LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
- return -1;
- }
-
- const ssize_t size = write_size * MISC_PAGES;
- char data[size];
- ssize_t r = mtd_read_data(read, data, size);
- if (r != size) LOGE("Can't read %s\n(%s)\n", v->device, strerror(errno));
- mtd_read_close(read);
- if (r != size) return -1;
-
- memcpy(out, &data[write_size * MISC_COMMAND_PAGE], sizeof(*out));
- return 0;
-}
-static int set_bootloader_message_mtd(const struct bootloader_message *in,
- const Volume* v) {
- size_t write_size;
- mtd_scan_partitions();
- const MtdPartition *part = mtd_find_partition_by_name(v->device);
- if (part == NULL || mtd_partition_info(part, NULL, NULL, &write_size)) {
- LOGE("Can't find %s\n", v->device);
- return -1;
- }
-
- MtdReadContext *read = mtd_read_partition(part);
- if (read == NULL) {
- LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
- return -1;
- }
-
- ssize_t size = write_size * MISC_PAGES;
- char data[size];
- ssize_t r = mtd_read_data(read, data, size);
- if (r != size) LOGE("Can't read %s\n(%s)\n", v->device, strerror(errno));
- mtd_read_close(read);
- if (r != size) return -1;
-
- memcpy(&data[write_size * MISC_COMMAND_PAGE], in, sizeof(*in));
-
- MtdWriteContext *write = mtd_write_partition(part);
- if (write == NULL) {
- LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
- return -1;
- }
- if (mtd_write_data(write, data, size) != size) {
- LOGE("Can't write %s\n(%s)\n", v->device, strerror(errno));
- mtd_write_close(write);
- return -1;
- }
- if (mtd_write_close(write)) {
- LOGE("Can't finish %s\n(%s)\n", v->device, strerror(errno));
- return -1;
- }
-
- LOGI("Set boot command \"%s\"\n", in->command[0] != 255 ? in->command : "");
- return 0;
-}
-
-
-// ------------------------------------
-// for misc partitions on block devices
-// ------------------------------------
-
-static void wait_for_device(const char* fn) {
- int tries = 0;
- int ret;
- struct stat buf;
- do {
- ++tries;
- ret = stat(fn, &buf);
- if (ret) {
- printf("stat %s try %d: %s\n", fn, tries, strerror(errno));
- sleep(1);
- }
- } while (ret && tries < 10);
- if (ret) {
- printf("failed to stat %s\n", fn);
- }
-}
-
-static int get_bootloader_message_block(struct bootloader_message *out,
- const Volume* v) {
- wait_for_device(v->device);
- FILE* f = fopen(v->device, "rb");
- if (f == NULL) {
- LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
- return -1;
- }
- struct bootloader_message temp;
- int count = fread(&temp, sizeof(temp), 1, f);
- if (count != 1) {
- LOGE("Failed reading %s\n(%s)\n", v->device, strerror(errno));
- return -1;
- }
- if (fclose(f) != 0) {
- LOGE("Failed closing %s\n(%s)\n", v->device, strerror(errno));
- return -1;
- }
- memcpy(out, &temp, sizeof(temp));
- return 0;
-}
-
-static int set_bootloader_message_block(const struct bootloader_message *in,
- const Volume* v) {
- wait_for_device(v->device);
- FILE* f = fopen(v->device, "wb");
- if (f == NULL) {
- LOGE("Can't open %s\n(%s)\n", v->device, strerror(errno));
- return -1;
- }
- int count = fwrite(in, sizeof(*in), 1, f);
- if (count != 1) {
- LOGE("Failed writing %s\n(%s)\n", v->device, strerror(errno));
- return -1;
- }
- if (fclose(f) != 0) {
- LOGE("Failed closing %s\n(%s)\n", v->device, strerror(errno));
- return -1;
- }
- return 0;
-}
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