driver: New intel 810 video driver

* Introduced by Gerald Zajac in #8615 * Will need reviewed, tested, and some style cleanup * Not in images until steps above complete
2012-05-30 15:21:18 -05:00
parent 9c02217342
commit e0ee3b7971
16 changed files with 2436 additions and 0 deletions
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2007-2012 Haiku, Inc.  All rights reserved.
+ * Distributed under the terms of the MIT license.
+ *
+ * Authors:
+ *		Gerald Zajac
+ */
+
+#ifndef DRIVERINTERFACE_H
+#define DRIVERINTERFACE_H
+
+
+#include <Accelerant.h>
+#include <GraphicsDefs.h>
+#include <Drivers.h>
+#include <edid.h>
+
+
+// This file contains info that is shared between the kernel driver and the
+// accelerant, and info that is shared among the source files of the
+// accelerant.
+
+
+#define ENABLE_DEBUG_TRACE		// if defined, turns on debug output to syslog
+
+
+#define ARRAY_SIZE(a) (int(sizeof(a) / sizeof(a[0]))) 	// get number of elements in an array
+
+
+struct Benaphore {
+	sem_id	sem;
+	int32	count;
+
+	status_t Init(const char* name)
+	{
+		count = 0;
+		sem = create_sem(0, name);
+		return sem < 0 ? sem : B_OK;
+	}
+
+	status_t Acquire()
+	{
+		if (atomic_add(&count, 1) > 0)
+			return acquire_sem(sem);
+		return B_OK;
+	}
+
+	status_t Release()
+	{
+		if (atomic_add(&count, -1) > 1)
+			return release_sem(sem);
+		return B_OK;
+	}
+
+	void Delete()	{ delete_sem(sem); }
+};
+
+
+
+enum {
+	INTEL_GET_SHARED_DATA = B_DEVICE_OP_CODES_END + 234,
+	INTEL_DEVICE_NAME,
+	INTEL_GET_EDID,
+};
+
+
+struct DisplayModeEx : display_mode {
+	uint8	bitsPerPixel;
+	uint8	bytesPerPixel;
+	uint16	bytesPerRow;		// number of bytes in one line/row
+};
+
+
+struct SharedInfo {
+	// Device ID info.
+	uint16	vendorID;			// PCI vendor ID, from pci_info
+	uint16	deviceID;			// PCI device ID, from pci_info
+	uint8	revision;			// PCI device revsion, from pci_info
+	char	chipName[32];		// user recognizable name of chip
+
+	bool	bAccelerantInUse;	// true = accelerant has been initialized
+
+	// Memory mappings.
+	area_id regsArea;			// area_id for the memory mapped registers. It will
+								// be cloned into accelerant's address space.
+	area_id videoMemArea;		// video memory area_id.  Addr's shared with all teams.
+	addr_t	videoMemAddr;		// virtual video memory addr
+	phys_addr_t	videoMemPCI;	// physical video memory addr
+	uint32	videoMemSize; 		// video memory size in bytes (for frame buffer).
+
+	uint32	maxFrameBufferSize;	// max available video memory for frame buffer
+
+	// Color spaces supported by current video chip/driver.
+	color_space	colorSpaces[6];
+	uint32	colorSpaceCount;	// number of color spaces in array colorSpaces
+
+	// List of screen modes.
+	area_id modeArea;			// area containing list of display modes the driver supports
+	uint32	modeCount;			// number of display modes in the list
+
+	DisplayModeEx displayMode;	// current display mode configuration
+
+	edid1_info	edidInfo;
+	bool		bHaveEDID;		// true = EDID info from device is in edidInfo
+
+	Benaphore	engineLock;		// for serializing access to the acceleration engine
+};
+
+
+#endif	// DRIVERINTERFACE_H