Commit 265a0690 authored Oct 31, 2022 by Shuzhen Wang

Camera: Turn off torch at provider startup

Flashlight could be stuck at ON after system_server crashes
(which results in cameraserver to restart).
As a workaround, turn flash off at the provider start.

Alternative considered: restart HAL process when cameraserver
restarts. However, even with that, some device still fails to
turn off flashlight.

Test: Camera CTS, kill system_server with flash on
Bug: 247038031
Change-Id: I8a49ce8a541dc0537348dc16b3b48b96b10c89f6

parent 861cba83

services/camera/libcameraservice/common/aidl/AidlProviderInfo.cpp

+5 −0

Original line number	Diff line number	Diff line
		@@ -550,6 +550,11 @@ AidlProviderInfo::AidlDeviceInfo3::AidlDeviceInfo3(
		"ANDROID_FLASH_INFO_STRENGTH_MAXIMUM_LEVEL tags: %s (%d)", __FUNCTION__,
		strerror(-res), res);
		}

		// b/247038031: In case of system_server crash, camera_server is
		// restarted as well. If flashlight is turned on before the crash, it
		// may be stuck to be on. As a workaround, set torch mode to be OFF.
		interface->setTorchMode(false);
		} else {
		mHasFlashUnit = false;
		}