[libcamera-devel] [RFC v1 4/5] libcamera: pipeline: ipu3: Get VCM information

[Kieran Bingham]

Quoting Kate Hsuan via libcamera-devel (2022-04-14 08:43:41)
> It is an interface of CameraData to get the VCM steps. Also, the VCM step
> value is stored in ConfigInfo.
> 
> Signed-off-by: Kate Hsuan<hpa at redhat.com>
> ---
>  src/libcamera/pipeline/ipu3/ipu3.cpp | 15 +++++++++++++++
>  1 file changed, 15 insertions(+)
> 
> diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
> index 9f113171..9cc12e4c 100644
> --- a/src/libcamera/pipeline/ipu3/ipu3.cpp
> +++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
> @@ -85,6 +85,8 @@ public:
>  
>         ControlInfoMap ipaControls_;
>  
> +       int getSensorControls();
> +
>  private:
>         void metadataReady(unsigned int id, const ControlList &metadata);
>         void paramsBufferReady(unsigned int id);
> @@ -670,6 +672,7 @@ int PipelineHandlerIPU3::configure(Camera *camera, CameraConfiguration *c)
>         configInfo.sensorInfo = sensorInfo;
>         configInfo.bdsOutputSize = config->imguConfig().bds;
>         configInfo.iif = config->imguConfig().iif;
> +       configInfo.sensorInfo.maxVcmSteps = data->getSensorControls();

This doesn't sound right - 
    maxVcmSteps = getSensorControls?


>         ret = data->ipa_->configure(configInfo, &data->ipaControls_);
>         if (ret) {
> @@ -1271,6 +1274,18 @@ void IPU3CameraData::setSensorControls([[maybe_unused]] unsigned int id,
>         focusLens->setFocusPosition(focusValue.get<int32_t>());
>  }
>  
> +int IPU3CameraData::getSensorControls()
> +{
> +       int ret = 0;
> +
> +       CameraLens *focusLens = cio2_.sensor()->focusLens();
> +       if (!focusLens)
> +               return 0;
> +
> +       ret = focusLens->getFocusCapabilityies();

Capabilities

But ... I think all of this needs some rework.  This is getting lens
controls, not sensor controls. And lens controls should be a control
list - not returning 'all' controls as a single value which is actually
only one value of one control?

> +       return ret;
> +}
> +
>  void IPU3CameraData::paramsBufferReady(unsigned int id)
>  {
>         IPU3Frames::Info *info = frameInfos_.find(id);
> -- 
> 2.35.1
>