687bc12ccf
When doing a firmware (radio or hboot) update on HTC devices, save the recovery log in block 1 of the cache partition, before the firmware image and the UI bitmaps. When we boot back into recovery after the firmware update to reformat the cache partition, copy that log out of cache before reformatting it and dump it into the current invocation's log. The practical upshot of all this is that we can see the log output from radio and hboot updates. Change-Id: Ie0e89566754c88f4bed6a90d8a0aa04047b01a27
67 lines
2.3 KiB
C
67 lines
2.3 KiB
C
/*
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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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const char *log_filename);
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/* Look for a log stored in the cache partition in the block after the
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* firmware update header. If we can read such a log, copy it to
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* stdout (ie, the current log).
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*/
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void recover_firmware_update_log();
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#endif
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