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),
225 	if (di.sharedArea < 0)
226 		return di.sharedArea;	// return error code
228 	SharedInfo& si = *(di.sharedInfo);
232 	pci_info& pciInfo = di.pciInfo;
237 	si.chipType = di.pChipInfo->chipType;
238 	strcpy(si.chipName, di.pChipInfo->chipName);
240 	status_t status = MapDevice(di);
242 		delete_area(di.sharedArea);
243 		di.sharedArea = -1;
244 		di.sharedInfo = NULL;
334 		DeviceInfo& di = gDeviceInfo[count];
336 		const ChipInfo* pDevice = GetNextSupportedDevice(pciIndex, di.pciInfo);
341 		sprintf(di.name, "graphics/" DEVICE_FORMAT,
342 				  di.pciInfo.vendor_id, di.pciInfo.device_id,
343 				  di.pciInfo.bus, di.pciInfo.device, di.pciInfo.function);
344 		TRACE("init_driver() match found; name: %s\n", di.name);
346 		gDeviceNames[count] = di.name;
347 		di.openCount = 0;		// mark driver as available for R/W open
348 		di.sharedArea = -1;		// indicate shared area not yet created
349 		di.sharedInfo = NULL;
350 		di.pChipInfo = pDevice;
414 	DeviceInfo& di = gDeviceInfo[i];
418 	if (di.openCount == 0)
419 		status = InitDevice(di);
424 		di.openCount++;		// mark device open
425 		*cookie = &di;		// send cookie to opener
429 		di.openCount);
473 	DeviceInfo& di = *((DeviceInfo*)dev);
481 	if (di.openCount <= 1) {
482 		UnmapDevice(di);	// free regs and frame buffer areas
484 		delete_area(di.sharedArea);
485 		di.sharedArea = -1;
486 		di.sharedInfo = NULL;
489 	if (di.openCount > 0)
490 		di.openCount--;		// mark device available
494 	TRACE("exit device_free() openCount: %ld\n", di.openCount);
502 	DeviceInfo& di = *((DeviceInfo*)dev);
514 			strncpy((char*)buffer, di.name, B_OS_NAME_LENGTH);
524 			*((area_id*)buffer) = di.sharedArea;
536 				int ioAddr = di.pciInfo.u.h0.base_registers[2] + regInfo->offset;
557 				int ioAddr = di.pciInfo.u.h0.base_registers[2] + regInfo->offset;