Boot control HAL based on the A/B headers.
The added bootctrl.bcb module implement the legacy interface for the
bootctrl HAL based on the Boot Control Block (BCB) and the headers
already specified in the booloader_message library.
This serves as a reference implementation of the boot_control HAL.
Bug: 32707546
Test: Tested internally that a device can use this HAL to flip slots and
recovery from a /misc wipe.
Change-Id: Ic02e5aaf4de7d0a1780eac4e8705dae20d0b3e10
diff --git a/bootloader_message/bootloader_message.cpp b/bootloader_message/bootloader_message.cpp
index d8086be..f91446b 100644
--- a/bootloader_message/bootloader_message.cpp
+++ b/bootloader_message/bootloader_message.cpp
@@ -117,6 +117,13 @@
return true;
}
+std::string get_bootloader_message_blk_device(std::string* err) {
+ std::string misc_blk_device = get_misc_blk_device(err);
+ if (misc_blk_device.empty()) return "";
+ if (!wait_for_device(misc_blk_device, err)) return "";
+ return misc_blk_device;
+}
+
bool read_bootloader_message_from(bootloader_message* boot, const std::string& misc_blk_device,
std::string* err) {
return read_misc_partition(boot, sizeof(*boot), misc_blk_device,