60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
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/*
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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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#ifndef _RECOVERY_BOOTLOADER_H
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#define _RECOVERY_BOOTLOADER_H
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/* Bootloader Message
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*
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* This structure describes the content of a block in flash
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* that is used for recovery and the bootloader to talk to
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* each other.
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*
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* The command field is updated by linux when it wants to
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* reboot into recovery or to update radio or bootloader firmware.
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* It is also updated by the bootloader when firmware update
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* is complete (to boot into recovery for any final cleanup)
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*
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* The status field is written by the bootloader after the
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* completion of an "update-radio" or "update-hboot" command.
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*
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* The recovery field is only written by linux and used
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* for the system to send a message to recovery or the
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* other way around.
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*/
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struct bootloader_message {
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char command[32];
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char status[32];
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char recovery[1024];
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};
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/* Read and write the bootloader command from the "misc" partition.
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* These return zero on success.
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*/
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int get_bootloader_message(struct bootloader_message *out);
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int set_bootloader_message(const struct bootloader_message *in);
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/* Write an update to the cache partition for update-radio or update-hboot.
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* Note, this destroys any filesystem on the cache partition!
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* The expected bitmap format is 240x320, 16bpp (2Bpp), RGB 5:6:5.
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*/
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int write_update_for_bootloader(
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const char *update, int update_len,
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int bitmap_width, int bitmap_height, int bitmap_bpp,
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const char *busy_bitmap, const char *error_bitmap);
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#endif
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