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-rw-r--r--src/libcamera/pipeline/ipu3/ipu3.cpp154
1 files changed, 144 insertions, 10 deletions
diff --git a/src/libcamera/pipeline/ipu3/ipu3.cpp b/src/libcamera/pipeline/ipu3/ipu3.cpp
index 02521f5f..c4b0c16e 100644
--- a/src/libcamera/pipeline/ipu3/ipu3.cpp
+++ b/src/libcamera/pipeline/ipu3/ipu3.cpp
@@ -26,6 +26,43 @@ namespace libcamera {
LOG_DEFINE_CATEGORY(IPU3)
+class ImgUDevice
+{
+public:
+ static constexpr unsigned int PAD_INPUT = 0;
+ static constexpr unsigned int PAD_OUTPUT = 2;
+ static constexpr unsigned int PAD_VF = 3;
+ static constexpr unsigned int PAD_STAT = 4;
+
+ ImgUDevice()
+ : imgu_(nullptr), input_(nullptr), output_(nullptr),
+ viewfinder_(nullptr), stat_(nullptr)
+ {
+ }
+
+ ~ImgUDevice()
+ {
+ delete imgu_;
+ delete input_;
+ delete output_;
+ delete viewfinder_;
+ delete stat_;
+ }
+
+ int init(MediaDevice *media, unsigned int index);
+
+ unsigned int index_;
+ std::string name_;
+ MediaDevice *media_;
+
+ V4L2Subdevice *imgu_;
+ V4L2Device *input_;
+ V4L2Device *output_;
+ V4L2Device *viewfinder_;
+ V4L2Device *stat_;
+ /* \todo Add param video device for 3A tuning */
+};
+
class CIO2Device
{
public:
@@ -88,6 +125,7 @@ private:
void bufferReady(Buffer *buffer);
CIO2Device cio2_;
+ ImgUDevice *imgu_;
Stream stream_;
};
@@ -98,8 +136,10 @@ private:
PipelineHandler::cameraData(camera));
}
- void registerCameras();
+ int registerCameras();
+ ImgUDevice imgu0_;
+ ImgUDevice imgu1_;
std::shared_ptr<MediaDevice> cio2MediaDev_;
std::shared_ptr<MediaDevice> imguMediaDev_;
};
@@ -290,6 +330,8 @@ int PipelineHandlerIPU3::queueRequest(Camera *camera, Request *request)
bool PipelineHandlerIPU3::match(DeviceEnumerator *enumerator)
{
+ int ret;
+
DeviceMatch cio2_dm("ipu3-cio2");
cio2_dm.add("ipu3-csi2 0");
cio2_dm.add("ipu3-cio2 0");
@@ -345,36 +387,68 @@ bool PipelineHandlerIPU3::match(DeviceEnumerator *enumerator)
return false;
}
- registerCameras();
+ if (imguMediaDev_->open()) {
+ cio2MediaDev_->close();
+ return false;
+ }
+
+ if (imguMediaDev_->disableLinks())
+ goto error;
+ ret = registerCameras();
+
+error:
cio2MediaDev_->close();
+ imguMediaDev_->close();
- return true;
+ return ret == 0;
}
-/*
- * Cameras are created associating an image sensor (represented by a
- * media entity with function MEDIA_ENT_F_CAM_SENSOR) to one of the four
- * CIO2 CSI-2 receivers.
+/**
+ * \brief Initialise ImgU and CIO2 devices associated with cameras
+ *
+ * Initialise the two ImgU instances and create cameras with an associated
+ * CIO2 device instance.
+ *
+ * \return 0 on success or a negative error code for error or if no camera
+ * has been created
+ * \retval -ENODEV no camera has been created
*/
-void PipelineHandlerIPU3::registerCameras()
+int PipelineHandlerIPU3::registerCameras()
{
+ int ret;
+
+ ret = imgu0_.init(imguMediaDev_.get(), 0);
+ if (ret)
+ return ret;
+
+ ret = imgu1_.init(imguMediaDev_.get(), 1);
+ if (ret)
+ return ret;
+
/*
* For each CSI-2 receiver on the IPU3, create a Camera if an
* image sensor is connected to it and the sensor can produce images
* in a compatible format.
*/
unsigned int numCameras = 0;
- for (unsigned int id = 0; id < 4; ++id) {
+ for (unsigned int id = 0; id < 4 && numCameras < 2; ++id) {
std::unique_ptr<IPU3CameraData> data =
utils::make_unique<IPU3CameraData>(this);
std::set<Stream *> streams{ &data->stream_ };
CIO2Device *cio2 = &data->cio2_;
- int ret = cio2->init(cio2MediaDev_.get(), id);
+ ret = cio2->init(cio2MediaDev_.get(), id);
if (ret)
continue;
+ /**
+ * \todo Dynamically assign ImgU devices; as of now, limit
+ * support to two cameras only, and assign imgu0 to the first
+ * one and imgu1 to the second.
+ */
+ data->imgu_ = numCameras ? &imgu1_ : &imgu0_;
+
std::string cameraName = cio2->sensor_->entityName() + " "
+ std::to_string(id);
std::shared_ptr<Camera> camera = Camera::create(this,
@@ -393,6 +467,8 @@ void PipelineHandlerIPU3::registerCameras()
numCameras++;
}
+
+ return numCameras ? 0 : -ENODEV;
}
void PipelineHandlerIPU3::IPU3CameraData::bufferReady(Buffer *buffer)
@@ -403,6 +479,64 @@ void PipelineHandlerIPU3::IPU3CameraData::bufferReady(Buffer *buffer)
pipe_->completeRequest(camera_, request);
}
+/* -----------------------------------------------------------------------------
+ * ImgU Device
+ */
+
+/**
+ * \brief Initialize components of the ImgU instance
+ * \param[in] mediaDevice The ImgU instance media device
+ * \param[in] index The ImgU instance index
+ *
+ * Create and open the V4L2 devices and subdevices of the ImgU instance
+ * with \a index.
+ *
+ * In case of errors the created V4L2Device and V4L2Subdevice instances
+ * are destroyed at pipeline handler delete time.
+ *
+ * \return 0 on success or a negative error code otherwise
+ */
+int ImgUDevice::init(MediaDevice *media, unsigned int index)
+{
+ int ret;
+
+ index_ = index;
+ name_ = "ipu3-imgu " + std::to_string(index_);
+ media_ = media;
+
+ /*
+ * The media entities presence in the media device has been verified
+ * by the match() function: no need to check for newly created
+ * video devices and subdevice validity here.
+ */
+ imgu_ = V4L2Subdevice::fromEntityName(media, name_);
+ ret = imgu_->open();
+ if (ret)
+ return ret;
+
+ input_ = V4L2Device::fromEntityName(media, name_ + " input");
+ ret = input_->open();
+ if (ret)
+ return ret;
+
+ output_ = V4L2Device::fromEntityName(media, name_ + " output");
+ ret = output_->open();
+ if (ret)
+ return ret;
+
+ viewfinder_ = V4L2Device::fromEntityName(media, name_ + " viewfinder");
+ ret = viewfinder_->open();
+ if (ret)
+ return ret;
+
+ stat_ = V4L2Device::fromEntityName(media, name_ + " 3a stat");
+ ret = stat_->open();
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
/*------------------------------------------------------------------------------
* CIO2 Device
*/