[PATCH 3/6] ipa: rpi: Add a HW property to determine if the data buffer is strided

[Naushir Patuck]

This property (cfeDataBufferStrided) indicates if the CSI-2 hardware
writes to the embedded/metadata buffer directly, or if it treats the
buffer like an image buffer and strides the metadata lines.

Unicam write this buffer strided, while the PiSP Frontend writes to it
directly. This information will be relevant to data parsers in the
helpers where the data is structured in lines.

Signed-off-by: Naushir Patuck <naush at raspberrypi.com>
---
 src/ipa/rpi/controller/controller.cpp | 2 ++
 src/ipa/rpi/controller/controller.h   | 1 +
 2 files changed, 3 insertions(+)

diff --git a/src/ipa/rpi/controller/controller.cpp b/src/ipa/rpi/controller/controller.cpp
index e0131018e7b2..3bce88b9281e 100644
--- a/src/ipa/rpi/controller/controller.cpp
+++ b/src/ipa/rpi/controller/controller.cpp
@@ -39,6 +39,7 @@ static const std::map<std::string, Controller::HardwareConfig> HardwareConfigMap
 			.pipelineWidth = 13,
 			.statsInline = false,
 			.minPixelProcessingTime = 0s,
+			.cfeDataBufferStrided = true,
 		}
 	},
 	{
@@ -71,6 +72,7 @@ static const std::map<std::string, Controller::HardwareConfig> HardwareConfigMap
 			 * frames wider than ~16,000 pixels.
 			 */
 			.minPixelProcessingTime = 1.0us / 380,
+			.cfeDataBufferStrided = false,
 		}
 	},
 };
diff --git a/src/ipa/rpi/controller/controller.h b/src/ipa/rpi/controller/controller.h
index eff520bd61de..64f93f414524 100644
--- a/src/ipa/rpi/controller/controller.h
+++ b/src/ipa/rpi/controller/controller.h
@@ -49,6 +49,7 @@ public:
 		unsigned int pipelineWidth;
 		bool statsInline;
 		libcamera::utils::Duration minPixelProcessingTime;
+		bool cfeDataBufferStrided;
 	};
 
 	Controller();
-- 
2.43.0