libcamera: controls: Rename ControlInfo to ControlRange

The ControlInfo class stores a range of valid values for a control. Its
name is vague, as "info" has multiple meanings. Rename it to
ControlRange.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@ragnatech.se>

test/controls/control_range.cpp

@@ -0,0 +1,51 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2019, Google Inc.
+ *
+ * control_range.cpp - ControlRange tests
+ */
+
+#include <iostream>
+
+#include <libcamera/control_ids.h>
+#include <libcamera/controls.h>
+
+#include "test.h"
+
+using namespace std;
+using namespace libcamera;
+
+class ControlRangeTest : public Test
+{
+protected:
+	int run()
+	{
+		/*
+		 * Test information retrieval from a range with no minimum and
+		 * maximum.
+		 */
+		ControlRange brightness;
+
+		if (brightness.min().get<int32_t>() != 0 ||
+		    brightness.max().get<int32_t>() != 0) {
+			cout << "Invalid control range for Brightness" << endl;
+			return TestFail;
+		}
+
+		/*
+		 * Test information retrieval from a control with a minimum and
+		 * a maximum value.
+		 */
+		ControlRange contrast(10, 200);
+
+		if (contrast.min().get<int32_t>() != 10 ||
+		    contrast.max().get<int32_t>() != 200) {
+			cout << "Invalid control range for Contrast" << endl;
+			return TestFail;
+		}
+
+		return TestPass;
+	}
+};
+
+TEST_REGISTER(ControlRangeTest)