From 86902b39d7cd6701139f3de3a4ef4da57f2502ed Mon Sep 17 00:00:00 2001
From: Yudhistira Erlandinata <yerlandinata@chromium.org>
Date: Tue, 29 Oct 2024 16:07:12 +0000
Subject: libcamera: Extend u32 control type

V4L2 Controls support a wide variety of types not yet supported by the
ControlValue type system.

Extend the libcamera ControlValue types to support an explicit 32 bit
unsigned integer type, and map that to the corresponding
V4L2_CTRL_TYPE_U32 type within the v4l2_device support class.

Signed-off-by: Yudhistira Erlandinata <yerlandinata@chromium.org>
Co-developed-by: Harvey Yang <chenghaoyang@chromium.org>
Signed-off-by: Harvey Yang <chenghaoyang@chromium.org>
Reviewed-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
---
 test/controls/control_value.cpp | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

(limited to 'test/controls/control_value.cpp')

diff --git a/test/controls/control_value.cpp b/test/controls/control_value.cpp
index 344107fa..6ca85b73 100644
--- a/test/controls/control_value.cpp
+++ b/test/controls/control_value.cpp
@@ -109,6 +109,46 @@ protected:
 			return TestFail;
 		}
 
+		/*
+		 * Unsigned Integer32 type.
+		 */
+		value.set(static_cast<uint32_t>(42));
+		if (value.isNone() || value.isArray() ||
+		    value.type() != ControlTypeUnsigned32) {
+			cerr << "Control type mismatch after setting to uint32_t" << endl;
+			return TestFail;
+		}
+
+		if (value.get<uint32_t>() != 42) {
+			cerr << "Control value mismatch after setting to uint32_t" << endl;
+			return TestFail;
+		}
+
+		if (value.toString() != "42") {
+			cerr << "Control string mismatch after setting to uint32_t" << endl;
+			return TestFail;
+		}
+
+		std::array<uint32_t, 4> uint32s{ 3, 14, 15, 9 };
+		value.set(Span<uint32_t>(uint32s));
+		if (value.isNone() || !value.isArray() ||
+		    value.type() != ControlTypeUnsigned32) {
+			cerr << "Control type mismatch after setting to uint32_t array" << endl;
+			return TestFail;
+		}
+
+		Span<const uint32_t> uint32sResult = value.get<Span<const uint32_t>>();
+		if (uint32s.size() != uint32sResult.size() ||
+		    !std::equal(uint32s.begin(), uint32s.end(), uint32sResult.begin())) {
+			cerr << "Control value mismatch after setting to uint32_t array" << endl;
+			return TestFail;
+		}
+
+		if (value.toString() != "[ 3, 14, 15, 9 ]") {
+			cerr << "Control string mismatch after setting to uint32_t array" << endl;
+			return TestFail;
+		}
+
 		/*
 		 * Integer32 type.
 		 */
-- 
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