| /* SPDX-License-Identifier: BSD-2-Clause */ |
| * Copyright (C) 2017 The Android Open Source Project |
| /* Android standard boot slot names are 'a', 'b', 'c', ... */ |
| #define BOOT_SLOT_NAME(slot_num) ('a' + (slot_num)) |
| * Select the slot where to boot from. |
| * On Android devices with more than one boot slot (multiple copies of the |
| * kernel and system images) selects which slot should be used to boot from and |
| * registers the boot attempt. This is used in by the new A/B update model where |
| * one slot is updated in the background while running from the other slot. If |
| * the selected slot did not successfully boot in the past, a boot attempt is |
| * registered before returning from this function so it isn't selected |
| * @param[in] dev_desc Place to store the device description pointer |
| * @param[in] part_info Place to store the partition information |
| * @return The slot number (>= 0) on success, or a negative on error |
| int ab_select_slot(struct blk_desc *dev_desc, struct disk_partition *part_info); |
| #endif /* __ANDROID_AB_H */ |