virtio_gpu: initial driver

sample for qemu: -device virtio-vga,edid=on,xres=1024,yres=768 -display sdl display mode can be set in the Screen preferences. Change-Id: If1d6aeecb208ce7c62c42eea1a95c71237c4375a Reviewed-on: https://review.haiku-os.org/c/haiku/+/7038 Tested-by: Commit checker robot <[email protected]> Reviewed-by: Jérôme Duval <[email protected]>
2024-01-18 17:44:40 +00:00
parent a2270c7035
commit 0b733c9c80
12 changed files with 1928 additions and 0 deletions
@@ -0,0 +1,43 @@
+/*
+ * Copyright 2005-2009, Axel Dörfler, [email protected].
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef VIRTIO_INFO_H
+#define VIRTIO_INFO_H
+
+
+#include <Drivers.h>
+#include <Accelerant.h>
+
+#include <edid.h>
+
+
+struct virtio_gpu_shared_info {
+	area_id			mode_list_area;		// area containing display mode list
+	uint32			mode_count;
+	display_mode	current_mode;
+	uint32			bytes_per_row;
+
+	area_id			frame_buffer_area;	// area of frame buffer
+	uint8*			frame_buffer;
+		// pointer to frame buffer (visible by all apps!)
+
+	edid1_raw		edid_raw;
+	bool			has_edid;
+	uint32			dpms_capabilities;
+
+	char			name[32];
+	uint32			vram_size;
+};
+
+//----------------- ioctl() interface ----------------
+
+// list ioctls
+enum {
+	VIRTIO_GPU_GET_PRIVATE_DATA = B_DEVICE_OP_CODES_END + 1,
+	VIRTIO_GPU_GET_DEVICE_NAME,
+	VIRTIO_GPU_SET_DISPLAY_MODE,
+};
+
+
+#endif	/* VIRTIO_INFO_H */