graphics/3dfx/driver.cpp

123 MapDevice(DeviceInfo& di)
125 	SharedInfo& si = *(di.sharedInfo);
126 	pci_info& pciInfo = di.pciInfo;
177 		(void**)&di.regs);
191 UnmapDevice(DeviceInfo& di)
193 	SharedInfo& si = *(di.sharedInfo);
202 	di.regs = NULL;
207 InitDevice(DeviceInfo& di)
219 	di.sharedArea = create_area("3DFX shared info",
220 		(void**) &(di.sharedInfo),
224 	if (di.sharedArea < 0)
225 		return di.sharedArea;	// return error code
227 	SharedInfo& si = *(di.sharedInfo);
231 	pci_info& pciInfo = di.pciInfo;
236 	si.chipType = di.pChipInfo->chipType;
237 	strcpy(si.chipName, di.pChipInfo->chipName);
239 	status_t status = MapDevice(di);
241 		delete_area(di.sharedArea);
242 		di.sharedArea = -1;
243 		di.sharedInfo = NULL;
333 		DeviceInfo& di = gDeviceInfo[count];
335 		const ChipInfo* pDevice = GetNextSupportedDevice(pciIndex, di.pciInfo);
340 		sprintf(di.name, "graphics/" DEVICE_FORMAT,
341 				  di.pciInfo.vendor_id, di.pciInfo.device_id,
342 				  di.pciInfo.bus, di.pciInfo.device, di.pciInfo.function);
343 		TRACE("init_driver() match found; name: %s\n", di.name);
345 		gDeviceNames[count] = di.name;
346 		di.openCount = 0;		// mark driver as available for R/W open
347 		di.sharedArea = -1;		// indicate shared area not yet created
348 		di.sharedInfo = NULL;
349 		di.pChipInfo = pDevice;
413 	DeviceInfo& di = gDeviceInfo[i];
417 	if (di.openCount == 0)
418 		status = InitDevice(di);
423 		di.openCount++;		// mark device open
424 		*cookie = &di;		// send cookie to opener
428 		di.openCount);
472 	DeviceInfo& di = *((DeviceInfo*)dev);
480 	if (di.openCount <= 1) {
481 		UnmapDevice(di);	// free regs and frame buffer areas
483 		delete_area(di.sharedArea);
484 		di.sharedArea = -1;
485 		di.sharedInfo = NULL;
488 	if (di.openCount > 0)
489 		di.openCount--;		// mark device available
493 	TRACE("exit device_free() openCount: %ld\n", di.openCount);
501 	DeviceInfo& di = *((DeviceInfo*)dev);
513 			strncpy((char*)buffer, di.name, B_OS_NAME_LENGTH);
523 			*((area_id*)buffer) = di.sharedArea;
535 				int ioAddr = di.pciInfo.u.h0.base_registers[2] + regInfo->offset;
556 				int ioAddr = di.pciInfo.u.h0.base_registers[2] + regInfo->offset;