graphics/skeleton/driver.c

50 	device_info	*di;			/* pointer to the owning device */
67 	device_info	di[MAX_DEVICES];	/* device specific stuff */
77 static status_t map_device(device_info *di);
78 static void unmap_device(device_info *di);
328 static status_t map_device(device_info *di)
331 	shared_info *si = di->si;
333 	pci_info *pcii = &(di->pcii);
372 		di->pcii.vendor_id, di->pcii.device_id,
373 		di->pcii.bus, di->pcii.device, di->pcii.function);
379 		di->pcii.u.h0.base_registers_pci[registers],
380 		di->pcii.u.h0.base_register_sizes[registers],
383 		(void **)&(di->regs));
384  	si->clone_bugfix_regs = (uint32 *) di->regs;
391 		di->pcii.vendor_id, di->pcii.device_id,
392 		di->pcii.bus, di->pcii.device, di->pcii.function);
412 			di->pcii.u.h0.rom_base_pci,
413 			di->pcii.u.h0.rom_size,
464 		di->pcii.vendor_id, di->pcii.device_id,
465 		di->pcii.bus, di->pcii.device, di->pcii.function);
471 		di->pcii.u.h0.base_registers_pci[frame_buffer],
472 		di->pcii.u.h0.base_register_sizes[frame_buffer],
482 			di->pcii.u.h0.base_registers_pci[frame_buffer],
483 			di->pcii.u.h0.base_register_sizes[frame_buffer],
498 	si->framebuffer_pci = (void *) di->pcii.u.h0.base_registers_pci[frame_buffer];
507 static void unmap_device(device_info *di) {
508 	shared_info *si = di->si;
510 	pci_info *pcii = &(di->pcii);
521 	di->regs = NULL;
527 	device_info *di = pd->di;
530 	while ((count < MAX_DEVICES) && ((*pci_bus->get_nth_pci_info)(pci_index, &(di->pcii)) == B_NO_ERROR)) {
535 			if (SupportedDevices[vendor].vendor == di->pcii.vendor_id) {
540 					if (*devices == di->pcii.device_id ) {
542 						sprintf(di->name, "graphics/" DEVICE_FORMAT,
543 							di->pcii.vendor_id, di->pcii.device_id,
544 							di->pcii.bus, di->pcii.device, di->pcii.function);
547 						pd->device_names[count] = di->name;
549 						di->is_open = 0;
551 						di->shared_area = -1;
553 						di->si = NULL;
555 						di++;
594 	device_info *di = (device_info *)data;
595 	shared_info *si = di->si;
604 	regs = di->regs;
623 	device_info *di;
636 	di = &(pd->di[index]);
642 	if (di->is_open) {
648 		di->pcii.vendor_id, di->pcii.device_id,
649 		di->pcii.bus, di->pcii.device, di->pcii.function);
651 	di->shared_area = create_area(shared_name, (void **)&(di->si), B_ANY_KERNEL_ADDRESS, ((sizeof(shared_info) + (B_PAGE_SIZE - 1)) & ~(B_PAGE_SIZE - 1)), B_FULL_LOCK,
653 	if (di->shared_area < 0) {
655 		result = di->shared_area;
660 	si = di->si;
663 	si->vendor_id = di->pcii.vendor_id;
664 	si->device_id = di->pcii.device_id;
665 	si->revision = di->pcii.revision;
666 	si->bus = di->pcii.bus;
667 	si->device = di->pcii.device;
668 	si->function = di->pcii.function;
695 	result = map_device(di);
700 	si->vblank = create_sem(0, di->name);
713 	regs = di->regs;
719 	if ((di->pcii.u.h0.interrupt_pin == 0x00) ||
720 	    (di->pcii.u.h0.interrupt_line == 0xff) || /* no IRQ assigned */
721 	    (di->pcii.u.h0.interrupt_line <= 0x02))   /* system IRQ assigned */
732 		result = install_io_interrupt_handler(di->pcii.u.h0.interrupt_line, eng_interrupt, (void *)di, 0);
739 	di->is_open++;
742 	*cookie = di;
751 	unmap_device(di);
755 	delete_area(di->shared_area);
756 	di->shared_area = -1;
757 	di->si = NULL;
802 	device_info *di = (device_info *)dev;
803 	shared_info	*si = di->si;
804 	vuint32 *regs = di->regs;
810 	if (di->is_open > 1)
817 	remove_io_interrupt_handler(di->pcii.u.h0.interrupt_line, eng_interrupt, di);
824 	unmap_device(di);
827 	delete_area(di->shared_area);
828 	di->shared_area = -1;
829 	di->si = NULL;
833 	di->is_open--;
845 	device_info *di = (device_info *)dev;
861 				gpd->shared_info_area = di->shared_area;
868 				pci_info *pcii = &(di->pcii);
876 				pci_info *pcii = &(di->pcii);
884 				strcpy(dn->name, di->name);
891 				vuint32 *regs = di->regs;
930 				pci_info *pcii = &(di->pcii);
959 				pci_info *pcii = &(di->pcii);