105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#ifndef __ANDROID_BOOTLOADER_H
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#define __ANDROID_BOOTLOADER_H
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#include <common.h>
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enum android_boot_mode {
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ANDROID_BOOT_MODE_NORMAL = 0,
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/* "recovery" mode is triggered by the "reboot recovery" command or
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* equivalent adb/fastboot command. It can also be triggered by writing
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* "boot-recovery" in the BCB message. This mode should boot the
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* recovery kernel.
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*/
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ANDROID_BOOT_MODE_RECOVERY,
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/* "bootloader" mode is triggered by the "reboot bootloader" command or
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* equivalent adb/fastboot command. It can also be triggered by writing
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* "bootonce-bootloader" in the BCB message. This mode should boot into
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* fastboot.
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*/
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ANDROID_BOOT_MODE_BOOTLOADER,
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};
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/** android_bootloader_boot_flow - Execute the Android Bootloader Flow.
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* Performs the Android Bootloader boot flow, loading the appropriate Android
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* image (normal kernel, recovery kernel or "bootloader" mode) and booting it.
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* The boot mode is determined by the contents of the Android Bootloader
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* Message. On success it doesn't return.
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*
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* @dev_desc: device where to load the kernel and system to boot from.
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* @load_address: address where to load the boot img if needed.
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*
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* @return a negative number in case of error, otherwise it doesn't return.
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*/
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int android_bootloader_boot_flow(struct blk_desc *dev_desc,
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unsigned long load_address);
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/** android_avb_boot_flow - Execute the Android Bootloader Flow.
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* This fuction use to select and boot kernel through ab_suffix.
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*
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* @kernel_address: address where to load the kernel if needed.
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*
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* @return a negative number in case of error, otherwise it doesn't return.
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*/
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int android_avb_boot_flow(unsigned long kernel_address);
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/** android_assemble_cmdline - Assemble args for cmdline.
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*
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* @ab_suffix: the boot slot to boot from.
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* @extra_args: select the args to command line.
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*
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* @return a negative number in case of error, otherwise it doesn't return.
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*/
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char *android_assemble_cmdline(const char *slot_suffix,
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const char *extra_args);
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/** android_bootloader_boot_kernel- Execute the kernel boot.
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*
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* @kernel_address: address where to load the kernel if needed.
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*
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* @return a negative number in case of error, otherwise it doesn't return.
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*/
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int android_bootloader_boot_kernel(unsigned long kernel_address);
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/** android_bootloader_boot_kernel- Load and execute the kernel boot.
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*
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* @kernel_address: address where to load the kernel if needed.
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*
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* @return a negative number in case of error, otherwise it doesn't return.
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*/
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int android_boot_flow(unsigned long kernel_address);
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/** str_append- add str to tail.
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*
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* @base_name: base name address.
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* @slot_suffix: suffix.
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*
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* @return (base name + suffix)address.
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*/
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char *android_str_append(char *base_name, char *slot_suffix);
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/** anrdroid_fdt_overlay_apply- apply fdt overlay.
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*
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* @fdt_addr: fdt blob.
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*
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* @return 0 on success, otherwise failed.
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*/
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int android_fdt_overlay_apply(void *fdt_addr);
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/** android_bcb_write- write the android bootloader message.
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*
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* @cmd: boot command
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*
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* @return 0 on success, otherwise failed.
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*/
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int android_bcb_write(char *cmd);
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#endif /* __ANDROID_BOOTLOADER_H */
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