libcamera: ipa: Raspberry Pi IPA

Initial implementation of the Raspberry Pi (BCM2835) libcamera IPA and
associated libraries.

All code is licensed under the BSD-2-Clause terms.
Copyright (c) 2019-2020 Raspberry Pi Trading Ltd.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

src/ipa/raspberrypi/controller/logging.hpp

@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (C) 2019-2020, Raspberry Pi (Trading) Limited
+ *
+ * logging.hpp - logging macros
+ */
+#pragma once
+
+#include <iostream>
+
+#ifndef RPI_LOGGING_ENABLE
+#define RPI_LOGGING_ENABLE 0
+#endif
+
+#ifndef RPI_WARNING_ENABLE
+#define RPI_WARNING_ENABLE 1
+#endif
+
+#define RPI_LOG(stuff)                                                         \
+	do {                                                                   \
+		if (RPI_LOGGING_ENABLE)                                        \
+			std::cout << __FUNCTION__ << ": " << stuff << "\n";    \
+	} while (0)
+
+#define RPI_WARN(stuff)                                                        \
+	do {                                                                   \
+		if (RPI_WARNING_ENABLE)                                        \
+			std::cout << __FUNCTION__ << " ***WARNING*** "         \
+				  << stuff << "\n";                            \
+	} while (0)