blob: 3d4302f1eda5438eb23a25f4d437a9cabaf4ed2e [file] [log] [blame]
* 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
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* See the License for the specific language governing permissions and
* limitations under the License.
/* Bootloader Message
* This structure describes the content of a block in flash
* that is used for recovery and the bootloader to talk to
* each other.
* The command field is updated by linux when it wants to
* reboot into recovery or to update radio or bootloader firmware.
* It is also updated by the bootloader when firmware update
* is complete (to boot into recovery for any final cleanup)
* The status field is written by the bootloader after the
* completion of an "update-radio" or "update-hboot" command.
* The recovery field is only written by linux and used
* for the system to send a message to recovery or the
* other way around.
struct bootloader_message {
char command[32];
char status[32];
char recovery[1024];
/* Read and write the bootloader command from the "misc" partition.
* These return zero on success.
int get_bootloader_message(struct bootloader_message *out);
int set_bootloader_message(const struct bootloader_message *in);
/* Write an update to the cache partition for update-radio or update-hboot.
* Note, this destroys any filesystem on the cache partition!
* The expected bitmap format is 240x320, 16bpp (2Bpp), RGB 5:6:5.
int write_update_for_bootloader(
const char *update, int update_len,
int bitmap_width, int bitmap_height, int bitmap_bpp,
const char *busy_bitmap, const char *error_bitmap);