216 	struct acpi_video_bus *video;  member
231 static void acpi_video_device_rebind(struct acpi_video_bus *video);
232 static void acpi_video_device_bind(struct acpi_video_bus *video,
234 static int acpi_video_device_enumerate(struct acpi_video_bus *video);
302 	struct acpi_video_device *video = acpi_driver_data(device);  in video_get_max_state()  local
304 	*state = video->brightness->count - 3;  in video_get_max_state()
312 	struct acpi_video_device *video = acpi_driver_data(device);  in video_get_cur_state()  local
316 	if (acpi_video_device_lcd_get_level_current(video, &level, false))  in video_get_cur_state()
318 	for (offset = 2; offset < video->brightness->count; offset++)  in video_get_cur_state()
319 		if (level == video->brightness->levels[offset]) {  in video_get_cur_state()
320 			*state = video->brightness->count - offset - 1;  in video_get_cur_state()
331 	struct acpi_video_device *video = acpi_driver_data(device);  in video_set_cur_state()  local
334 	if (state >= video->brightness->count - 2)  in video_set_cur_state()
337 	state = video->brightness->count - state;  in video_set_cur_state()
338 	level = video->brightness->levels[state - 1];  in video_set_cur_state()
339 	return acpi_video_device_lcd_set_level(video, level);  in video_set_cur_state()
732 acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag)  in acpi_video_bus_DOS()  argument
736 	if (!video->cap._DOS)  in acpi_video_bus_DOS()
741 	video->dos_setting = (lcd_flag << 2) | bios_flag;  in acpi_video_bus_DOS()
742 	status = acpi_execute_simple_method(video->device->handle, "_DOS",  in acpi_video_bus_DOS()
1000 static void acpi_video_bus_find_cap(struct acpi_video_bus *video)  in acpi_video_bus_find_cap()  argument
1002 	if (acpi_has_method(video->device->handle, "_DOS"))  in acpi_video_bus_find_cap()
1003 		video->cap._DOS = 1;  in acpi_video_bus_find_cap()
1004 	if (acpi_has_method(video->device->handle, "_DOD"))  in acpi_video_bus_find_cap()
1005 		video->cap._DOD = 1;  in acpi_video_bus_find_cap()
1006 	if (acpi_has_method(video->device->handle, "_ROM"))  in acpi_video_bus_find_cap()
1007 		video->cap._ROM = 1;  in acpi_video_bus_find_cap()
1008 	if (acpi_has_method(video->device->handle, "_GPD"))  in acpi_video_bus_find_cap()
1009 		video->cap._GPD = 1;  in acpi_video_bus_find_cap()
1010 	if (acpi_has_method(video->device->handle, "_SPD"))  in acpi_video_bus_find_cap()
1011 		video->cap._SPD = 1;  in acpi_video_bus_find_cap()
1012 	if (acpi_has_method(video->device->handle, "_VPO"))  in acpi_video_bus_find_cap()
1013 		video->cap._VPO = 1;  in acpi_video_bus_find_cap()
1021 static int acpi_video_bus_check(struct acpi_video_bus *video)  in acpi_video_bus_check()  argument
1026 	if (!video)  in acpi_video_bus_check()
1029 	dev = acpi_get_pci_dev(video->device->handle);  in acpi_video_bus_check()
1040 	if (video->cap._DOS || video->cap._DOD) {  in acpi_video_bus_check()
1041 		if (!video->cap._DOS) {  in acpi_video_bus_check()
1044 				acpi_device_bid(video->device));  in acpi_video_bus_check()
1046 		video->flags.multihead = 1;  in acpi_video_bus_check()
1051 	if (video->cap._ROM) {  in acpi_video_bus_check()
1052 		video->flags.rom = 1;  in acpi_video_bus_check()
1057 	if (video->cap._GPD && video->cap._SPD && video->cap._VPO) {  in acpi_video_bus_check()
1058 		video->flags.post = 1;  in acpi_video_bus_check()
1073 acpi_video_get_device_attr(struct acpi_video_bus *video, unsigned long device_id)  in acpi_video_get_device_attr()  argument
1078 	for (i = 0; i < video->attached_count; i++) {  in acpi_video_get_device_attr()
1079 		ids = &video->attached_array[i];  in acpi_video_get_device_attr()
1088 acpi_video_get_device_type(struct acpi_video_bus *video,  in acpi_video_get_device_type()  argument
1094 	for (i = 0; i < video->attached_count; i++) {  in acpi_video_get_device_type()
1095 		ids = &video->attached_array[i];  in acpi_video_get_device_type()
1105 			      struct acpi_video_bus *video)  in acpi_video_bus_get_one_device()  argument
1127 	data->video = video;  in acpi_video_bus_get_one_device()
1132 	attribute = acpi_video_get_device_attr(video, device_id);  in acpi_video_bus_get_one_device()
1156 		device_type = acpi_video_get_device_type(video, device_id);  in acpi_video_bus_get_one_device()
1173 	acpi_video_device_bind(video, data);  in acpi_video_bus_get_one_device()
1176 	mutex_lock(&video->device_list_lock);  in acpi_video_bus_get_one_device()
1177 	list_add_tail(&data->entry, &video->video_device_list);  in acpi_video_bus_get_one_device()
1178 	mutex_unlock(&video->device_list_lock);  in acpi_video_bus_get_one_device()
1195 static void acpi_video_device_rebind(struct acpi_video_bus *video)  in acpi_video_device_rebind()  argument
1199 	mutex_lock(&video->device_list_lock);  in acpi_video_device_rebind()
1201 	list_for_each_entry(dev, &video->video_device_list, entry)  in acpi_video_device_rebind()
1202 		acpi_video_device_bind(video, dev);  in acpi_video_device_rebind()
1204 	mutex_unlock(&video->device_list_lock);  in acpi_video_device_rebind()
1221 acpi_video_device_bind(struct acpi_video_bus *video,  in acpi_video_device_bind()  argument
1227 	for (i = 0; i < video->attached_count; i++) {  in acpi_video_device_bind()
1228 		ids = &video->attached_array[i];  in acpi_video_device_bind()
1238 	struct acpi_video_bus *video = device->video;  in acpi_video_device_in_dod()  local
1246 	if (!video->attached_count || video->child_count > 8)  in acpi_video_device_in_dod()
1249 	for (i = 0; i < video->attached_count; i++) {  in acpi_video_device_in_dod()
1250 		if ((video->attached_array[i].value.int_val & 0xfff) ==  in acpi_video_device_in_dod()
1269 static int acpi_video_device_enumerate(struct acpi_video_bus *video)  in acpi_video_device_enumerate()  argument
1279 	status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer);  in acpi_video_device_enumerate()
1320 	kfree(video->attached_array);  in acpi_video_device_enumerate()
1322 	video->attached_array = active_list;  in acpi_video_device_enumerate()
1323 	video->attached_count = count;  in acpi_video_device_enumerate()
1413 	struct acpi_video_bus *video;  in acpi_video_get_edid()  local
1422 	video = acpi_driver_data(device);  in acpi_video_get_edid()
1424 	for (i = 0; i < video->attached_count; i++) {  in acpi_video_get_edid()
1425 		video_device = video->attached_array[i].bind_info;  in acpi_video_get_edid()
1479 acpi_video_bus_get_devices(struct acpi_video_bus *video,  in acpi_video_bus_get_devices()  argument
1490 	acpi_video_device_enumerate(video);  in acpi_video_bus_get_devices()
1494 		status = acpi_video_bus_get_one_device(dev, video);  in acpi_video_bus_get_devices()
1499 		video->child_count++;  in acpi_video_bus_get_devices()
1510 static int acpi_video_bus_start_devices(struct acpi_video_bus *video)  in acpi_video_bus_start_devices()  argument
1512 	return acpi_video_bus_DOS(video, 0,  in acpi_video_bus_start_devices()
1516 static int acpi_video_bus_stop_devices(struct acpi_video_bus *video)  in acpi_video_bus_stop_devices()  argument
1518 	return acpi_video_bus_DOS(video, 0,  in acpi_video_bus_stop_devices()
1524 	struct acpi_video_bus *video = acpi_driver_data(device);  in acpi_video_bus_notify()  local
1528 	if (!video || !video->input)  in acpi_video_bus_notify()
1531 	input = video->input;  in acpi_video_bus_notify()
1541 		acpi_video_device_enumerate(video);  in acpi_video_bus_notify()
1542 		acpi_video_device_rebind(video);  in acpi_video_bus_notify()
1598 	bus = video_device->video;  in acpi_video_device_notify()
1643 	struct acpi_video_bus *video;  in acpi_video_resume()  local
1654 	video = container_of(nb, struct acpi_video_bus, pm_nb);  in acpi_video_resume()
1656 	dev_info(&video->device->dev, "Restoring backlight state\n");  in acpi_video_resume()
1658 	for (i = 0; i < video->attached_count; i++) {  in acpi_video_resume()
1659 		video_device = video->attached_array[i].bind_info;  in acpi_video_resume()
1768 static void acpi_video_run_bcl_for_osi(struct acpi_video_bus *video)  in acpi_video_run_bcl_for_osi()  argument
1773 	mutex_lock(&video->device_list_lock);  in acpi_video_run_bcl_for_osi()
1774 	list_for_each_entry(dev, &video->video_device_list, entry) {  in acpi_video_run_bcl_for_osi()
1778 	mutex_unlock(&video->device_list_lock);  in acpi_video_run_bcl_for_osi()
1781 static int acpi_video_bus_register_backlight(struct acpi_video_bus *video)  in acpi_video_bus_register_backlight()  argument
1785 	if (video->backlight_registered)  in acpi_video_bus_register_backlight()
1788 	acpi_video_run_bcl_for_osi(video);  in acpi_video_bus_register_backlight()
1793 	mutex_lock(&video->device_list_lock);  in acpi_video_bus_register_backlight()
1794 	list_for_each_entry(dev, &video->video_device_list, entry)  in acpi_video_bus_register_backlight()
1796 	mutex_unlock(&video->device_list_lock);  in acpi_video_bus_register_backlight()
1798 	video->backlight_registered = true;  in acpi_video_bus_register_backlight()
1800 	video->pm_nb.notifier_call = acpi_video_resume;  in acpi_video_bus_register_backlight()
1801 	video->pm_nb.priority = 0;  in acpi_video_bus_register_backlight()
1802 	return register_pm_notifier(&video->pm_nb);  in acpi_video_bus_register_backlight()
1824 static int acpi_video_bus_unregister_backlight(struct acpi_video_bus *video)  in acpi_video_bus_unregister_backlight()  argument
1829 	if (!video->backlight_registered)  in acpi_video_bus_unregister_backlight()
1832 	error = unregister_pm_notifier(&video->pm_nb);  in acpi_video_bus_unregister_backlight()
1834 	mutex_lock(&video->device_list_lock);  in acpi_video_bus_unregister_backlight()
1835 	list_for_each_entry(dev, &video->video_device_list, entry)  in acpi_video_bus_unregister_backlight()
1837 	mutex_unlock(&video->device_list_lock);  in acpi_video_bus_unregister_backlight()
1839 	video->backlight_registered = false;  in acpi_video_bus_unregister_backlight()
1857 static int acpi_video_bus_add_notify_handler(struct acpi_video_bus *video)  in acpi_video_bus_add_notify_handler()  argument
1863 	video->input = input = input_allocate_device();  in acpi_video_bus_add_notify_handler()
1869 	error = acpi_video_bus_start_devices(video);  in acpi_video_bus_add_notify_handler()
1873 	snprintf(video->phys, sizeof(video->phys),  in acpi_video_bus_add_notify_handler()
1874 			"%s/video/input0", acpi_device_hid(video->device));  in acpi_video_bus_add_notify_handler()
1876 	input->name = acpi_device_name(video->device);  in acpi_video_bus_add_notify_handler()
1877 	input->phys = video->phys;  in acpi_video_bus_add_notify_handler()
1880 	input->dev.parent = &video->device->dev;  in acpi_video_bus_add_notify_handler()
1895 	mutex_lock(&video->device_list_lock);  in acpi_video_bus_add_notify_handler()
1896 	list_for_each_entry(dev, &video->video_device_list, entry)  in acpi_video_bus_add_notify_handler()
1898 	mutex_unlock(&video->device_list_lock);  in acpi_video_bus_add_notify_handler()
1903 	acpi_video_bus_stop_devices(video);  in acpi_video_bus_add_notify_handler()
1906 	video->input = NULL;  in acpi_video_bus_add_notify_handler()
1920 static void acpi_video_bus_remove_notify_handler(struct acpi_video_bus *video)  in acpi_video_bus_remove_notify_handler()  argument
1924 	mutex_lock(&video->device_list_lock);  in acpi_video_bus_remove_notify_handler()
1925 	list_for_each_entry(dev, &video->video_device_list, entry)  in acpi_video_bus_remove_notify_handler()
1927 	mutex_unlock(&video->device_list_lock);  in acpi_video_bus_remove_notify_handler()
1929 	acpi_video_bus_stop_devices(video);  in acpi_video_bus_remove_notify_handler()
1930 	input_unregister_device(video->input);  in acpi_video_bus_remove_notify_handler()
1931 	video->input = NULL;  in acpi_video_bus_remove_notify_handler()
1938 	struct acpi_video_bus *video;  in acpi_video_backlight_notify()  local
1944 	video = container_of(nb, struct acpi_video_bus, backlight_nb);  in acpi_video_backlight_notify()
1949 			acpi_video_bus_unregister_backlight(video);  in acpi_video_backlight_notify()
1952 		acpi_video_bus_register_backlight(video);  in acpi_video_backlight_notify()
1960 						struct acpi_video_bus *video)  in acpi_video_bus_add_backlight_notify_handler()  argument
1964 	video->backlight_nb.notifier_call = acpi_video_backlight_notify;  in acpi_video_bus_add_backlight_notify_handler()
1965 	video->backlight_nb.priority = 0;  in acpi_video_bus_add_backlight_notify_handler()
1966 	error = backlight_register_notifier(&video->backlight_nb);  in acpi_video_bus_add_backlight_notify_handler()
1968 		video->backlight_notifier_registered = true;  in acpi_video_bus_add_backlight_notify_handler()
1974 						struct acpi_video_bus *video)  in acpi_video_bus_remove_backlight_notify_handler()  argument
1976 	if (!video->backlight_notifier_registered)  in acpi_video_bus_remove_backlight_notify_handler()
1979 	video->backlight_notifier_registered = false;  in acpi_video_bus_remove_backlight_notify_handler()
1981 	return backlight_unregister_notifier(&video->backlight_nb);  in acpi_video_bus_remove_backlight_notify_handler()
1984 static int acpi_video_bus_put_devices(struct acpi_video_bus *video)  in acpi_video_bus_put_devices()  argument
1988 	mutex_lock(&video->device_list_lock);  in acpi_video_bus_put_devices()
1989 	list_for_each_entry_safe(dev, next, &video->video_device_list, entry) {  in acpi_video_bus_put_devices()
1993 	mutex_unlock(&video->device_list_lock);  in acpi_video_bus_put_devices()
2002 	struct acpi_video_bus *video;  in acpi_video_bus_add()  local
2020 	video = kzalloc(sizeof(struct acpi_video_bus), GFP_KERNEL);  in acpi_video_bus_add()
2021 	if (!video)  in acpi_video_bus_add()
2037 	video->device = device;  in acpi_video_bus_add()
2040 	device->driver_data = video;  in acpi_video_bus_add()
2042 	acpi_video_bus_find_cap(video);  in acpi_video_bus_add()
2043 	error = acpi_video_bus_check(video);  in acpi_video_bus_add()
2047 	mutex_init(&video->device_list_lock);  in acpi_video_bus_add()
2048 	INIT_LIST_HEAD(&video->video_device_list);  in acpi_video_bus_add()
2050 	error = acpi_video_bus_get_devices(video, device);  in acpi_video_bus_add()
2056 	       video->flags.multihead ? "yes" : "no",  in acpi_video_bus_add()
2057 	       video->flags.rom ? "yes" : "no",  in acpi_video_bus_add()
2058 	       video->flags.post ? "yes" : "no");  in acpi_video_bus_add()
2060 	list_add_tail(&video->entry, &video_bus_head);  in acpi_video_bus_add()
2063 	acpi_video_bus_register_backlight(video);  in acpi_video_bus_add()
2064 	acpi_video_bus_add_notify_handler(video);  in acpi_video_bus_add()
2065 	acpi_video_bus_add_backlight_notify_handler(video);  in acpi_video_bus_add()
2070 	acpi_video_bus_put_devices(video);  in acpi_video_bus_add()
2071 	kfree(video->attached_array);  in acpi_video_bus_add()
2073 	kfree(video);  in acpi_video_bus_add()
2081 	struct acpi_video_bus *video = NULL;  in acpi_video_bus_remove()  local
2087 	video = acpi_driver_data(device);  in acpi_video_bus_remove()
2089 	acpi_video_bus_remove_backlight_notify_handler(video);  in acpi_video_bus_remove()
2090 	acpi_video_bus_remove_notify_handler(video);  in acpi_video_bus_remove()
2091 	acpi_video_bus_unregister_backlight(video);  in acpi_video_bus_remove()
2092 	acpi_video_bus_put_devices(video);  in acpi_video_bus_remove()
2095 	list_del(&video->entry);  in acpi_video_bus_remove()
2098 	kfree(video->attached_array);  in acpi_video_bus_remove()
2099 	kfree(video);  in acpi_video_bus_remove()
2183 	struct acpi_video_bus *video;  in acpi_video_unregister_backlight()  local
2189 	list_for_each_entry(video, &video_bus_head, entry)  in acpi_video_unregister_backlight()
2190 		acpi_video_bus_unregister_backlight(video);  in acpi_video_unregister_backlight()