tree: Rename the header and defines

The sunxi_cedrus.h header contains a bunch of defines prefixed with
SUNXI_CEDRUS.

As part as the ongoing migration to a more generic name, change that prefix
for V4L2_REQUEST, and the header file to request.h

Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>

src/request.h

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2016 Florent Revest, <florent.revest@free-electrons.com>
+ *               2007 Intel Corporation. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _V4L2_REQUEST_H_
+#define _V4L2_REQUEST_H_
+
+#include <stdbool.h>
+
+#include "context.h"
+#include "object_heap.h"
+#include <va/va.h>
+
+#include <linux/videodev2.h>
+
+#define V4L2_REQUEST_STR_VENDOR			"Sunxi-Cedrus"
+
+#define V4L2_REQUEST_MAX_PROFILES		11
+#define V4L2_REQUEST_MAX_ENTRYPOINTS		5
+#define V4L2_REQUEST_MAX_CONFIG_ATTRIBUTES	10
+#define V4L2_REQUEST_MAX_IMAGE_FORMATS		10
+#define V4L2_REQUEST_MAX_SUBPIC_FORMATS		4
+#define V4L2_REQUEST_MAX_DISPLAY_ATTRIBUTES	4
+
+struct cedrus_data {
+	struct object_heap config_heap;
+	struct object_heap context_heap;
+	struct object_heap surface_heap;
+	struct object_heap buffer_heap;
+	struct object_heap image_heap;
+	int video_fd;
+	int media_fd;
+
+	bool tiled_format;
+};
+
+VAStatus VA_DRIVER_INIT_FUNC(VADriverContextP context);
+VAStatus RequestTerminate(VADriverContextP context);
+
+#endif