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authorDoug Zongker <dougz@android.com>2010-02-02 22:09:52 +0100
committerDoug Zongker <dougz@android.com>2010-02-03 18:20:07 +0100
commite08991e02a7d678f2574e85289a34b2a9a537c82 (patch)
treeca53b4adbf66388805a47f93c440412be552761c /bootloader.c
parentMerge "change log recovery to generic device_recovery_start function" (diff)
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Diffstat (limited to '')
-rw-r--r--bootloader.c249
1 files changed, 0 insertions, 249 deletions
diff --git a/bootloader.c b/bootloader.c
index 61b24e918..38b5651bf 100644
--- a/bootloader.c
+++ b/bootloader.c
@@ -119,252 +119,3 @@ int set_bootloader_message(const struct bootloader_message *in) {
LOGI("Set boot command \"%s\"\n", in->command[0] != 255 ? in->command : "");
return 0;
}
-
-/* Update Image
- *
- * - will be stored in the "cache" partition
- * - bad blocks will be ignored, like boot.img and recovery.img
- * - the first block will be the image header (described below)
- * - the size is in BYTES, inclusive of the header
- * - offsets are in BYTES from the start of the update header
- * - two raw bitmaps will be included, the "busy" and "fail" bitmaps
- * - for dream, the bitmaps will be 320x480x16bpp RGB565
- */
-
-#define UPDATE_MAGIC "MSM-RADIO-UPDATE"
-#define UPDATE_MAGIC_SIZE 16
-#define UPDATE_VERSION 0x00010000
-
-struct update_header {
- unsigned char MAGIC[UPDATE_MAGIC_SIZE];
-
- unsigned version;
- unsigned size;
-
- unsigned image_offset;
- unsigned image_length;
-
- unsigned bitmap_width;
- unsigned bitmap_height;
- unsigned bitmap_bpp;
-
- unsigned busy_bitmap_offset;
- unsigned busy_bitmap_length;
-
- unsigned fail_bitmap_offset;
- unsigned fail_bitmap_length;
-};
-
-#define LOG_MAGIC "LOGmagic"
-#define LOG_MAGIC_SIZE 8
-
-int write_update_for_bootloader(
- const char *update, int update_length,
- int bitmap_width, int bitmap_height, int bitmap_bpp,
- const char *busy_bitmap, const char *fail_bitmap,
- const char *log_filename) {
- if (ensure_root_path_unmounted(CACHE_NAME)) {
- LOGE("Can't unmount %s\n", CACHE_NAME);
- return -1;
- }
-
- const MtdPartition *part = get_root_mtd_partition(CACHE_NAME);
- if (part == NULL) {
- LOGE("Can't find %s\n", CACHE_NAME);
- return -1;
- }
-
- MtdWriteContext *write = mtd_write_partition(part);
- if (write == NULL) {
- LOGE("Can't open %s\n(%s)\n", CACHE_NAME, strerror(errno));
- return -1;
- }
-
- /* Write an invalid (zero) header first, to disable any previous
- * update and any other structured contents (like a filesystem),
- * and as a placeholder for the amount of space required.
- */
-
- struct update_header header;
- memset(&header, 0, sizeof(header));
- const ssize_t header_size = sizeof(header);
- if (mtd_write_data(write, (char*) &header, header_size) != header_size) {
- LOGE("Can't write header to %s\n(%s)\n", CACHE_NAME, strerror(errno));
- mtd_write_close(write);
- return -1;
- }
-
- /* Write each section individually block-aligned, so we can write
- * each block independently without complicated buffering.
- */
-
- memcpy(&header.MAGIC, UPDATE_MAGIC, UPDATE_MAGIC_SIZE);
- header.version = UPDATE_VERSION;
- header.size = header_size;
-
- if (log_filename != NULL) {
- // Write 1 byte into the following block, then fill to the end
- // in order to reserve that block. We'll use the block to
- // send a copy of the log through to the next invocation of
- // recovery. We write the log as late as possible in order to
- // capture any messages emitted by this function.
- mtd_erase_blocks(write, 0);
- if (mtd_write_data(write, (char*) &header, 1) != 1) {
- LOGE("Can't write log block to %s\n(%s)\n",
- CACHE_NAME, strerror(errno));
- mtd_write_close(write);
- return -1;
- }
- }
-
- off_t image_start_pos = mtd_erase_blocks(write, 0);
- header.image_length = update_length;
- if ((int) header.image_offset == -1 ||
- mtd_write_data(write, update, update_length) != update_length) {
- LOGE("Can't write update to %s\n(%s)\n", CACHE_NAME, strerror(errno));
- mtd_write_close(write);
- return -1;
- }
- off_t busy_start_pos = mtd_erase_blocks(write, 0);
- header.image_offset = mtd_find_write_start(write, image_start_pos);
-
- header.bitmap_width = bitmap_width;
- header.bitmap_height = bitmap_height;
- header.bitmap_bpp = bitmap_bpp;
-
- int bitmap_length = (bitmap_bpp + 7) / 8 * bitmap_width * bitmap_height;
-
- header.busy_bitmap_length = busy_bitmap != NULL ? bitmap_length : 0;
- if ((int) header.busy_bitmap_offset == -1 ||
- mtd_write_data(write, busy_bitmap, bitmap_length) != bitmap_length) {
- LOGE("Can't write bitmap to %s\n(%s)\n", CACHE_NAME, strerror(errno));
- mtd_write_close(write);
- return -1;
- }
- off_t fail_start_pos = mtd_erase_blocks(write, 0);
- header.busy_bitmap_offset = mtd_find_write_start(write, busy_start_pos);
-
- header.fail_bitmap_length = fail_bitmap != NULL ? bitmap_length : 0;
- if ((int) header.fail_bitmap_offset == -1 ||
- mtd_write_data(write, fail_bitmap, bitmap_length) != bitmap_length) {
- LOGE("Can't write bitmap to %s\n(%s)\n", CACHE_NAME, strerror(errno));
- mtd_write_close(write);
- return -1;
- }
- mtd_erase_blocks(write, 0);
- header.fail_bitmap_offset = mtd_find_write_start(write, fail_start_pos);
-
- /* Write the header last, after all the blocks it refers to, so that
- * when the magic number is installed everything is valid.
- */
-
- if (mtd_write_close(write)) {
- LOGE("Can't finish writing %s\n(%s)\n", CACHE_NAME, strerror(errno));
- return -1;
- }
-
- write = mtd_write_partition(part);
- if (write == NULL) {
- LOGE("Can't reopen %s\n(%s)\n", CACHE_NAME, strerror(errno));
- return -1;
- }
-
- if (mtd_write_data(write, (char*) &header, header_size) != header_size) {
- LOGE("Can't rewrite header to %s\n(%s)\n", CACHE_NAME, strerror(errno));
- mtd_write_close(write);
- return -1;
- }
-
- if (log_filename != NULL) {
- size_t erase_size;
- if (mtd_partition_info(part, NULL, &erase_size, NULL) != 0) {
- LOGE("Error reading block size\n(%s)\n", strerror(errno));
- mtd_write_close(write);
- return -1;
- }
- mtd_erase_blocks(write, 0);
-
- if (erase_size > 0) {
- char* log = malloc(erase_size);
- FILE* f = fopen(log_filename, "rb");
- // The fseek() may fail if it tries to go before the
- // beginning of the log, but that's okay because we want
- // to be positioned at the start anyway.
- fseek(f, -(erase_size-sizeof(size_t)-LOG_MAGIC_SIZE), SEEK_END);
- memcpy(log, LOG_MAGIC, LOG_MAGIC_SIZE);
- size_t read = fread(log+sizeof(size_t)+LOG_MAGIC_SIZE,
- 1, erase_size-sizeof(size_t)-LOG_MAGIC_SIZE, f);
- LOGI("read %d bytes from log\n", (int)read);
- *(size_t *)(log + LOG_MAGIC_SIZE) = read;
- fclose(f);
- if (mtd_write_data(write, log, erase_size) != erase_size) {
- LOGE("failed to store log in cache partition\n(%s)\n",
- strerror(errno));
- mtd_write_close(write);
- }
- free(log);
- }
- }
-
- if (mtd_erase_blocks(write, 0) != image_start_pos) {
- LOGE("Misalignment rewriting %s\n(%s)\n", CACHE_NAME, strerror(errno));
- mtd_write_close(write);
- return -1;
- }
-
- if (mtd_write_close(write)) {
- LOGE("Can't finish header of %s\n(%s)\n", CACHE_NAME, strerror(errno));
- return -1;
- }
-
- return 0;
-}
-
-void recover_firmware_update_log() {
- printf("recovering log from before firmware update\n");
-
- const MtdPartition *part = get_root_mtd_partition(CACHE_NAME);
- if (part == NULL) {
- LOGE("Can't find %s\n", CACHE_NAME);
- return;
- }
-
- MtdReadContext* read = mtd_read_partition(part);
-
- size_t erase_size;
- if (mtd_partition_info(part, NULL, &erase_size, NULL) != 0) {
- LOGE("Error reading block size\n(%s)\n", strerror(errno));
- mtd_read_close(read);
- return;
- }
-
- char* buffer = malloc(erase_size);
- if (mtd_read_data(read, buffer, erase_size) != erase_size) {
- LOGE("Error reading header block\n(%s)\n", strerror(errno));
- mtd_read_close(read);
- free(buffer);
- return;
- }
- if (mtd_read_data(read, buffer, erase_size) != erase_size) {
- LOGE("Error reading log block\n(%s)\n", strerror(errno));
- mtd_read_close(read);
- free(buffer);
- return;
- }
- mtd_read_close(read);
-
- if (memcmp(buffer, LOG_MAGIC, LOG_MAGIC_SIZE) != 0) {
- LOGE("No log from before firmware install\n");
- free(buffer);
- return;
- }
-
- size_t log_size = *(size_t *)(buffer + LOG_MAGIC_SIZE);
- LOGI("header has %d bytes of log\n", (int)log_size);
-
- printf("\n###\n### START RECOVERED LOG\n###\n\n");
- fwrite(buffer + sizeof(size_t) + LOG_MAGIC_SIZE, 1, log_size, stdout);
- printf("\n\n###\n### END RECOVERED LOG\n###\n\n");
-
- free(buffer);
-}