android: camera_hal_manager: Set camera module callbacks

camera_module_callbacks are invoked to inform the framework about
the events occurring module-wide. Allow to set these callbacks in
camera_hal_manager as this will be used to integration camera hotplug
support via camera_module_callbacks::camera_device_status_change in
subsequent commit.

Signed-off-by: Umang Jain <email@uajain.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/android/camera3_hal.cpp

@@ -34,6 +34,8 @@ static int hal_get_camera_info(int id, struct camera_info *info)
 
 static int hal_set_callbacks(const camera_module_callbacks_t *callbacks)
 {
+	cameraManager.setCallbacks(callbacks);
+
 	return 0;
 }
 

src/android/camera_hal_manager.cpp

@@ -120,3 +120,8 @@ int CameraHalManager::getCameraInfo(unsigned int id, struct camera_info *info)
 
 	return 0;
 }
+
+void CameraHalManager::setCallbacks(const camera_module_callbacks_t *callbacks)
+{
+	callbacks_ = callbacks;
+}

src/android/camera_hal_manager.h

@@ -10,6 +10,7 @@
 #include <stddef.h>
 #include <vector>
 
+#include <hardware/camera_common.h>
 #include <hardware/hardware.h>
 #include <system/camera_metadata.h>
 
@@ -29,10 +30,12 @@ public:
 
 	unsigned int numCameras() const;
 	int getCameraInfo(unsigned int id, struct camera_info *info);
+	void setCallbacks(const camera_module_callbacks_t *callbacks);
 
 private:
 	libcamera::CameraManager *cameraManager_;
 
+	const camera_module_callbacks_t *callbacks_;
 	std::vector<std::unique_ptr<CameraDevice>> cameras_;
 };