ipa: raspberrypi: Extract line length from the embedded data parser

Update the imx219, imx477 and imx519 parsers to extract the line length
values from the embedded data stream and use these values in the
deviceStatus metadata, replacing the DelayedControls provided values.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Tested-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

1 files changed, 7 insertions, 2 deletions

diff --git a/src/ipa/raspberrypi/cam_helper_imx219.cpp b/src/ipa/raspberrypi/cam_helper_imx219.cpp
index 98a3b319..c3337ed0 100644
--- a/src/ipa/raspberrypi/cam_helper_imx219.cpp
+++ b/src/ipa/raspberrypi/cam_helper_imx219.cpp
@@ -32,8 +32,11 @@ constexpr uint32_t expHiReg = 0x15a;
 constexpr uint32_t expLoReg = 0x15b;
 constexpr uint32_t frameLengthHiReg = 0x160;
 constexpr uint32_t frameLengthLoReg = 0x161;
+constexpr uint32_t lineLengthHiReg = 0x162;
+constexpr uint32_t lineLengthLoReg = 0x163;
 constexpr std::initializer_list<uint32_t> registerList [[maybe_unused]]
-	= { expHiReg, expLoReg, gainReg, frameLengthHiReg, frameLengthLoReg };
+	= { expHiReg, expLoReg, gainReg, frameLengthHiReg, frameLengthLoReg,
+	    lineLengthHiReg, lineLengthLoReg };
 
 class CamHelperImx219 : public CamHelper
 {
@@ -94,8 +97,10 @@ void CamHelperImx219::populateMetadata(const MdParser::RegisterMap &registers,
 {
 	DeviceStatus deviceStatus;
 
+	deviceStatus.lineLength = lineLengthPckToDuration(registers.at(lineLengthHiReg) * 256 +
+							  registers.at(lineLengthLoReg));
 	deviceStatus.shutterSpeed = exposure(registers.at(expHiReg) * 256 + registers.at(expLoReg),
-					     mode_.minLineLength);
+					     deviceStatus.lineLength);
 	deviceStatus.analogueGain = gain(registers.at(gainReg));
 	deviceStatus.frameLength = registers.at(frameLengthHiReg) * 256 + registers.at(frameLengthLoReg);