[libcamera-devel] [PATCH v2 08/10] ipa: raspberrypi: Add line length to DeviceStatus

[Naushir Patuck]

Add a lineLength field to the DeviceStatus structure to store the line length
used for a particular frame.

Signed-off-by: Naushir Patuck <naush at raspberrypi.com>
Tested-by: Dave Stevenson <dave.stevenson at raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
---
 src/ipa/raspberrypi/controller/device_status.cpp | 1 +
 src/ipa/raspberrypi/controller/device_status.h   | 4 +++-
 src/ipa/raspberrypi/raspberrypi.cpp              | 2 ++
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/ipa/raspberrypi/controller/device_status.cpp b/src/ipa/raspberrypi/controller/device_status.cpp
index 2360a77bf1ea..c907efdd7511 100644
--- a/src/ipa/raspberrypi/controller/device_status.cpp
+++ b/src/ipa/raspberrypi/controller/device_status.cpp
@@ -12,6 +12,7 @@ std::ostream &operator<<(std::ostream &out, const DeviceStatus &d)
 {
 	out << "Exposure: " << d.shutterSpeed
 	    << " Frame length: " << d.frameLength
+	    << " Line length: " << d.lineLength
 	    << " Gain: " << d.analogueGain;
 
 	if (d.aperture)
diff --git a/src/ipa/raspberrypi/controller/device_status.h b/src/ipa/raspberrypi/controller/device_status.h
index 8f74e21b0c6e..4384c2149589 100644
--- a/src/ipa/raspberrypi/controller/device_status.h
+++ b/src/ipa/raspberrypi/controller/device_status.h
@@ -19,7 +19,7 @@
 struct DeviceStatus {
 	DeviceStatus()
 		: shutterSpeed(std::chrono::seconds(0)), frameLength(0),
-		  analogueGain(0.0)
+		  lineLength(std::chrono::seconds(0)), analogueGain(0.0)
 	{
 	}
 
@@ -29,6 +29,8 @@ struct DeviceStatus {
 	libcamera::utils::Duration shutterSpeed;
 	/* frame length given in number of lines */
 	uint32_t frameLength;
+	/* line length for the current frame */
+	libcamera::utils::Duration lineLength;
 	double analogueGain;
 	/* 1.0/distance-in-metres, or 0 if unknown */
 	std::optional<double> lensPosition;
diff --git a/src/ipa/raspberrypi/raspberrypi.cpp b/src/ipa/raspberrypi/raspberrypi.cpp
index b6289f151677..c8e15f2b04d1 100644
--- a/src/ipa/raspberrypi/raspberrypi.cpp
+++ b/src/ipa/raspberrypi/raspberrypi.cpp
@@ -1108,7 +1108,9 @@ void IPARPi::fillDeviceStatus(const ControlList &sensorControls)
 	int32_t exposureLines = sensorControls.get(V4L2_CID_EXPOSURE).get<int32_t>();
 	int32_t gainCode = sensorControls.get(V4L2_CID_ANALOGUE_GAIN).get<int32_t>();
 	int32_t vblank = sensorControls.get(V4L2_CID_VBLANK).get<int32_t>();
+	int32_t hblank = sensorControls.get(V4L2_CID_HBLANK).get<int32_t>();
 
+	deviceStatus.lineLength = helper_->hblankToLineLength(hblank);
 	deviceStatus.shutterSpeed = helper_->exposure(exposureLines, mode_.minLineLength);
 	deviceStatus.analogueGain = helper_->gain(gainCode);
 	deviceStatus.frameLength = mode_.height + vblank;
-- 
2.25.1