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authorThe Android Open Source Project <initial-contribution@android.com>2009-03-04 03:28:14 +0100
committerThe Android Open Source Project <initial-contribution@android.com>2009-03-04 03:28:14 +0100
commitffb48f64fec674c6dd923eb8b1eb3f743e05a8ba (patch)
tree4b825dc642cb6eb9a060e54bf8d69288fbee4904 /firmware.c
parentauto import from //depot/cupcake/@132589 (diff)
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Diffstat (limited to '')
-rw-r--r--firmware.c127
1 files changed, 0 insertions, 127 deletions
diff --git a/firmware.c b/firmware.c
deleted file mode 100644
index 34b291835..000000000
--- a/firmware.c
+++ /dev/null
@@ -1,127 +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 "firmware.h"
-#include "roots.h"
-
-#include <errno.h>
-#include <string.h>
-#include <sys/reboot.h>
-
-static const char *update_type = NULL;
-static const char *update_data = NULL;
-static int update_length = 0;
-
-int remember_firmware_update(const char *type, const char *data, int length) {
- if (update_type != NULL || update_data != NULL) {
- LOGE("Multiple firmware images\n");
- return -1;
- }
-
- update_type = type;
- update_data = data;
- update_length = length;
- return 0;
-}
-
-
-/* Bootloader / Recovery Flow
- *
- * On every boot, the bootloader will read the bootloader_message
- * from flash and check the command field. The bootloader should
- * deal with the command field not having a 0 terminator correctly
- * (so as to not crash if the block is invalid or corrupt).
- *
- * The bootloader will have to publish the partition that contains
- * the bootloader_message to the linux kernel so it can update it.
- *
- * if command == "boot-recovery" -> boot recovery.img
- * else if command == "update-radio" -> update radio image (below)
- * else if command == "update-hboot" -> update hboot image (below)
- * else -> boot boot.img (normal boot)
- *
- * Radio/Hboot Update Flow
- * 1. the bootloader will attempt to load and validate the header
- * 2. if the header is invalid, status="invalid-update", goto #8
- * 3. display the busy image on-screen
- * 4. if the update image is invalid, status="invalid-radio-image", goto #8
- * 5. attempt to update the firmware (depending on the command)
- * 6. if successful, status="okay", goto #8
- * 7. if failed, and the old image can still boot, status="failed-update"
- * 8. write the bootloader_message, leaving the recovery field
- * unchanged, updating status, and setting command to
- * "boot-recovery"
- * 9. reboot
- *
- * The bootloader will not modify or erase the cache partition.
- * It is recovery's responsibility to clean up the mess afterwards.
- */
-
-int maybe_install_firmware_update(const char *send_intent) {
- if (update_data == NULL || update_length == 0) return 0;
-
- /* We destroy the cache partition to pass the update image to the
- * bootloader, so all we can really do afterwards is wipe cache and reboot.
- * Set up this instruction now, in case we're interrupted while writing.
- */
-
- struct bootloader_message boot;
- memset(&boot, 0, sizeof(boot));
- strlcpy(boot.command, "boot-recovery", sizeof(boot.command));
- strlcpy(boot.recovery, "recovery\n--wipe_cache\n", sizeof(boot.command));
- if (send_intent != NULL) {
- strlcat(boot.recovery, "--send_intent=", sizeof(boot.recovery));
- strlcat(boot.recovery, send_intent, sizeof(boot.recovery));
- strlcat(boot.recovery, "\n", sizeof(boot.recovery));
- }
- if (set_bootloader_message(&boot)) return -1;
-
- int width = 0, height = 0, bpp = 0;
- char *busy_image = ui_copy_image(
- BACKGROUND_ICON_FIRMWARE_INSTALLING, &width, &height, &bpp);
- char *fail_image = ui_copy_image(
- BACKGROUND_ICON_FIRMWARE_ERROR, &width, &height, &bpp);
-
- ui_print("Writing %s image...\n", update_type);
- if (write_update_for_bootloader(
- update_data, update_length,
- width, height, bpp, busy_image, fail_image)) {
- LOGE("Can't write %s image\n(%s)\n", update_type, strerror(errno));
- format_root_device("CACHE:"); // Attempt to clean cache up, at least.
- return -1;
- }
-
- free(busy_image);
- free(fail_image);
-
- /* The update image is fully written, so now we can instruct the bootloader
- * to install it. (After doing so, it will come back here, and we will
- * wipe the cache and reboot into the system.)
- */
- snprintf(boot.command, sizeof(boot.command), "update-%s", update_type);
- if (set_bootloader_message(&boot)) {
- format_root_device("CACHE:");
- return -1;
- }
-
- reboot(RB_AUTOBOOT);
-
- // Can't reboot? WTF?
- LOGE("Can't reboot\n");
- return -1;
-}