[libcamera-devel] [PATCH 1/2] android: camera_hal_manager: Set camera module callbacks

[Laurent Pinchart]

Hi Umang,

Thank you for the patch.

On Wed, Aug 05, 2020 at 03:14:43PM +0000, Umang Jain wrote:
> camera_module_callbacks are invoked to inform the framework about
> the events occuring 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 at uajain.com>
> ---
>  src/android/camera3_hal.cpp        | 2 +-
>  src/android/camera_hal_manager.cpp | 7 +++++++
>  src/android/camera_hal_manager.h   | 3 +++
>  3 files changed, 11 insertions(+), 1 deletion(-)
> 
> diff --git a/src/android/camera3_hal.cpp b/src/android/camera3_hal.cpp
> index 716e36c..47c1aa9 100644
> --- a/src/android/camera3_hal.cpp
> +++ b/src/android/camera3_hal.cpp
> @@ -34,7 +34,7 @@ static int hal_get_camera_info(int id, struct camera_info *info)
>  
>  static int hal_set_callbacks(const camera_module_callbacks_t *callbacks)
>  {
> -	return 0;
> +	return cameraManager.setCallbacks(callbacks);
>  }
>  
>  static int hal_open_legacy(const struct hw_module_t *module, const char *id,
> diff --git a/src/android/camera_hal_manager.cpp b/src/android/camera_hal_manager.cpp
> index 02b6418..3ddcab5 100644
> --- a/src/android/camera_hal_manager.cpp
> +++ b/src/android/camera_hal_manager.cpp
> @@ -120,3 +120,10 @@ int CameraHalManager::getCameraInfo(unsigned int id, struct camera_info *info)
>  
>  	return 0;
>  }
> +
> +int CameraHalManager::setCallbacks(const camera_module_callbacks_t *callbacks)
> +{
> +	callbacks_ = callbacks;
> +
> +	return 0;

As this can't fail, I'd make it a void function.

Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>

> +}
> diff --git a/src/android/camera_hal_manager.h b/src/android/camera_hal_manager.h
> index 0619037..4345b1e 100644
> --- a/src/android/camera_hal_manager.h
> +++ b/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);
> +	int setCallbacks(const camera_module_callbacks_t *callbacks);
>  
>  private:
>  	libcamera::CameraManager *cameraManager_;
>  
> +	const camera_module_callbacks_t *callbacks_;
>  	std::vector<std::unique_ptr<CameraDevice>> cameras_;
>  };
>  

-- 
Regards,

Laurent Pinchart