207 	struct acpi_video_bus *video;  member
215 static void acpi_video_device_rebind(struct acpi_video_bus *video);
216 static void acpi_video_device_bind(struct acpi_video_bus *video,
218 static int acpi_video_device_enumerate(struct acpi_video_bus *video);
264 	struct acpi_video_device *video = acpi_driver_data(device);  in video_get_max_state()  local
266 	*state = video->brightness->count - ACPI_VIDEO_FIRST_LEVEL - 1;  in video_get_max_state()
274 	struct acpi_video_device *video = acpi_driver_data(device);  in video_get_cur_state()  local
278 	if (acpi_video_device_lcd_get_level_current(video, &level, false))  in video_get_cur_state()
280 	for (offset = ACPI_VIDEO_FIRST_LEVEL; offset < video->brightness->count;  in video_get_cur_state()
282 		if (level == video->brightness->levels[offset]) {  in video_get_cur_state()
283 			*state = video->brightness->count - offset - 1;  in video_get_cur_state()
294 	struct acpi_video_device *video = acpi_driver_data(device);  in video_set_cur_state()  local
297 	if (state >= video->brightness->count - ACPI_VIDEO_FIRST_LEVEL)  in video_set_cur_state()
300 	state = video->brightness->count - state;  in video_set_cur_state()
301 	level = video->brightness->levels[state - 1];  in video_set_cur_state()
302 	return acpi_video_device_lcd_set_level(video, level);  in video_set_cur_state()
739 acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag)  in acpi_video_bus_DOS()  argument
743 	if (!video->cap._DOS)  in acpi_video_bus_DOS()
748 	video->dos_setting = (lcd_flag << 2) | bios_flag;  in acpi_video_bus_DOS()
749 	status = acpi_execute_simple_method(video->device->handle, "_DOS",  in acpi_video_bus_DOS()
1069 static void acpi_video_bus_find_cap(struct acpi_video_bus *video)  in acpi_video_bus_find_cap()  argument
1071 	if (acpi_has_method(video->device->handle, "_DOS"))  in acpi_video_bus_find_cap()
1072 		video->cap._DOS = 1;  in acpi_video_bus_find_cap()
1073 	if (acpi_has_method(video->device->handle, "_DOD"))  in acpi_video_bus_find_cap()
1074 		video->cap._DOD = 1;  in acpi_video_bus_find_cap()
1075 	if (acpi_has_method(video->device->handle, "_ROM"))  in acpi_video_bus_find_cap()
1076 		video->cap._ROM = 1;  in acpi_video_bus_find_cap()
1077 	if (acpi_has_method(video->device->handle, "_GPD"))  in acpi_video_bus_find_cap()
1078 		video->cap._GPD = 1;  in acpi_video_bus_find_cap()
1079 	if (acpi_has_method(video->device->handle, "_SPD"))  in acpi_video_bus_find_cap()
1080 		video->cap._SPD = 1;  in acpi_video_bus_find_cap()
1081 	if (acpi_has_method(video->device->handle, "_VPO"))  in acpi_video_bus_find_cap()
1082 		video->cap._VPO = 1;  in acpi_video_bus_find_cap()
1090 static int acpi_video_bus_check(struct acpi_video_bus *video)  in acpi_video_bus_check()  argument
1095 	if (!video)  in acpi_video_bus_check()
1098 	dev = acpi_get_pci_dev(video->device->handle);  in acpi_video_bus_check()
1109 	if (video->cap._DOS || video->cap._DOD) {  in acpi_video_bus_check()
1110 		if (!video->cap._DOS) {  in acpi_video_bus_check()
1113 				acpi_device_bid(video->device));  in acpi_video_bus_check()
1115 		video->flags.multihead = 1;  in acpi_video_bus_check()
1120 	if (video->cap._ROM) {  in acpi_video_bus_check()
1121 		video->flags.rom = 1;  in acpi_video_bus_check()
1126 	if (video->cap._GPD && video->cap._SPD && video->cap._VPO) {  in acpi_video_bus_check()
1127 		video->flags.post = 1;  in acpi_video_bus_check()
1142 acpi_video_get_device_attr(struct acpi_video_bus *video, unsigned long device_id)  in acpi_video_get_device_attr()  argument
1147 	for (i = 0; i < video->attached_count; i++) {  in acpi_video_get_device_attr()
1148 		ids = &video->attached_array[i];  in acpi_video_get_device_attr()
1157 acpi_video_get_device_type(struct acpi_video_bus *video,  in acpi_video_get_device_type()  argument
1163 	for (i = 0; i < video->attached_count; i++) {  in acpi_video_get_device_type()
1164 		ids = &video->attached_array[i];  in acpi_video_get_device_type()
1174 			      struct acpi_video_bus *video)  in acpi_video_bus_get_one_device()  argument
1196 	data->video = video;  in acpi_video_bus_get_one_device()
1201 	attribute = acpi_video_get_device_attr(video, device_id);  in acpi_video_bus_get_one_device()
1225 		device_type = acpi_video_get_device_type(video, device_id);  in acpi_video_bus_get_one_device()
1242 	acpi_video_device_bind(video, data);  in acpi_video_bus_get_one_device()
1245 	mutex_lock(&video->device_list_lock);  in acpi_video_bus_get_one_device()
1246 	list_add_tail(&data->entry, &video->video_device_list);  in acpi_video_bus_get_one_device()
1247 	mutex_unlock(&video->device_list_lock);  in acpi_video_bus_get_one_device()
1264 static void acpi_video_device_rebind(struct acpi_video_bus *video)  in acpi_video_device_rebind()  argument
1268 	mutex_lock(&video->device_list_lock);  in acpi_video_device_rebind()
1270 	list_for_each_entry(dev, &video->video_device_list, entry)  in acpi_video_device_rebind()
1271 		acpi_video_device_bind(video, dev);  in acpi_video_device_rebind()
1273 	mutex_unlock(&video->device_list_lock);  in acpi_video_device_rebind()
1290 acpi_video_device_bind(struct acpi_video_bus *video,  in acpi_video_device_bind()  argument
1296 	for (i = 0; i < video->attached_count; i++) {  in acpi_video_device_bind()
1297 		ids = &video->attached_array[i];  in acpi_video_device_bind()
1307 	struct acpi_video_bus *video = device->video;  in acpi_video_device_in_dod()  local
1315 	if (!video->attached_count || video->child_count > 8)  in acpi_video_device_in_dod()
1318 	for (i = 0; i < video->attached_count; i++) {  in acpi_video_device_in_dod()
1319 		if ((video->attached_array[i].value.int_val & 0xfff) ==  in acpi_video_device_in_dod()
1338 static int acpi_video_device_enumerate(struct acpi_video_bus *video)  in acpi_video_device_enumerate()  argument
1348 	if (!video->cap._DOD)  in acpi_video_device_enumerate()
1351 	status = acpi_evaluate_object(video->device->handle, "_DOD", NULL, &buffer);  in acpi_video_device_enumerate()
1392 	kfree(video->attached_array);  in acpi_video_device_enumerate()
1394 	video->attached_array = active_list;  in acpi_video_device_enumerate()
1395 	video->attached_count = count;  in acpi_video_device_enumerate()
1485 	struct acpi_video_bus *video;  in acpi_video_get_edid()  local
1494 	video = acpi_driver_data(device);  in acpi_video_get_edid()
1496 	for (i = 0; i < video->attached_count; i++) {  in acpi_video_get_edid()
1497 		video_device = video->attached_array[i].bind_info;  in acpi_video_get_edid()
1551 acpi_video_bus_get_devices(struct acpi_video_bus *video,  in acpi_video_bus_get_devices()  argument
1562 	acpi_video_device_enumerate(video);  in acpi_video_bus_get_devices()
1566 		status = acpi_video_bus_get_one_device(dev, video);  in acpi_video_bus_get_devices()
1571 		video->child_count++;  in acpi_video_bus_get_devices()
1582 static int acpi_video_bus_start_devices(struct acpi_video_bus *video)  in acpi_video_bus_start_devices()  argument
1584 	return acpi_video_bus_DOS(video, 0,  in acpi_video_bus_start_devices()
1588 static int acpi_video_bus_stop_devices(struct acpi_video_bus *video)  in acpi_video_bus_stop_devices()  argument
1590 	return acpi_video_bus_DOS(video, 0,  in acpi_video_bus_stop_devices()
1596 	struct acpi_video_bus *video = acpi_driver_data(device);  in acpi_video_bus_notify()  local
1600 	if (!video || !video->input)  in acpi_video_bus_notify()
1603 	input = video->input;  in acpi_video_bus_notify()
1613 		acpi_video_device_enumerate(video);  in acpi_video_bus_notify()
1614 		acpi_video_device_rebind(video);  in acpi_video_bus_notify()
1670 	bus = video_device->video;  in acpi_video_device_notify()
1723 	struct acpi_video_bus *video;  in acpi_video_resume()  local
1734 	video = container_of(nb, struct acpi_video_bus, pm_nb);  in acpi_video_resume()
1736 	dev_info(&video->device->dev, "Restoring backlight state\n");  in acpi_video_resume()
1738 	for (i = 0; i < video->attached_count; i++) {  in acpi_video_resume()
1739 		video_device = video->attached_array[i].bind_info;  in acpi_video_resume()
1847 static void acpi_video_run_bcl_for_osi(struct acpi_video_bus *video)  in acpi_video_run_bcl_for_osi()  argument
1852 	mutex_lock(&video->device_list_lock);  in acpi_video_run_bcl_for_osi()
1853 	list_for_each_entry(dev, &video->video_device_list, entry) {  in acpi_video_run_bcl_for_osi()
1857 	mutex_unlock(&video->device_list_lock);  in acpi_video_run_bcl_for_osi()
1876 static int acpi_video_bus_register_backlight(struct acpi_video_bus *video)  in acpi_video_bus_register_backlight()  argument
1880 	if (video->backlight_registered)  in acpi_video_bus_register_backlight()
1883 	acpi_video_run_bcl_for_osi(video);  in acpi_video_bus_register_backlight()
1888 	mutex_lock(&video->device_list_lock);  in acpi_video_bus_register_backlight()
1889 	list_for_each_entry(dev, &video->video_device_list, entry) {  in acpi_video_bus_register_backlight()
1893 	mutex_unlock(&video->device_list_lock);  in acpi_video_bus_register_backlight()
1895 	video->backlight_registered = true;  in acpi_video_bus_register_backlight()
1897 	video->pm_nb.notifier_call = acpi_video_resume;  in acpi_video_bus_register_backlight()
1898 	video->pm_nb.priority = 0;  in acpi_video_bus_register_backlight()
1899 	return register_pm_notifier(&video->pm_nb);  in acpi_video_bus_register_backlight()
1921 static int acpi_video_bus_unregister_backlight(struct acpi_video_bus *video)  in acpi_video_bus_unregister_backlight()  argument
1926 	if (!video->backlight_registered)  in acpi_video_bus_unregister_backlight()
1929 	error = unregister_pm_notifier(&video->pm_nb);  in acpi_video_bus_unregister_backlight()
1931 	mutex_lock(&video->device_list_lock);  in acpi_video_bus_unregister_backlight()
1932 	list_for_each_entry(dev, &video->video_device_list, entry)  in acpi_video_bus_unregister_backlight()
1934 	mutex_unlock(&video->device_list_lock);  in acpi_video_bus_unregister_backlight()
1936 	video->backlight_registered = false;  in acpi_video_bus_unregister_backlight()
1954 static int acpi_video_bus_add_notify_handler(struct acpi_video_bus *video)  in acpi_video_bus_add_notify_handler()  argument
1960 	video->input = input = input_allocate_device();  in acpi_video_bus_add_notify_handler()
1966 	error = acpi_video_bus_start_devices(video);  in acpi_video_bus_add_notify_handler()
1970 	snprintf(video->phys, sizeof(video->phys),  in acpi_video_bus_add_notify_handler()
1971 			"%s/video/input0", acpi_device_hid(video->device));  in acpi_video_bus_add_notify_handler()
1973 	input->name = acpi_device_name(video->device);  in acpi_video_bus_add_notify_handler()
1974 	input->phys = video->phys;  in acpi_video_bus_add_notify_handler()
1977 	input->dev.parent = &video->device->dev;  in acpi_video_bus_add_notify_handler()
1992 	mutex_lock(&video->device_list_lock);  in acpi_video_bus_add_notify_handler()
1993 	list_for_each_entry(dev, &video->video_device_list, entry)  in acpi_video_bus_add_notify_handler()
1995 	mutex_unlock(&video->device_list_lock);  in acpi_video_bus_add_notify_handler()
2000 	acpi_video_bus_stop_devices(video);  in acpi_video_bus_add_notify_handler()
2003 	video->input = NULL;  in acpi_video_bus_add_notify_handler()
2017 static void acpi_video_bus_remove_notify_handler(struct acpi_video_bus *video)  in acpi_video_bus_remove_notify_handler()  argument
2021 	mutex_lock(&video->device_list_lock);  in acpi_video_bus_remove_notify_handler()
2022 	list_for_each_entry(dev, &video->video_device_list, entry)  in acpi_video_bus_remove_notify_handler()
2024 	mutex_unlock(&video->device_list_lock);  in acpi_video_bus_remove_notify_handler()
2026 	acpi_video_bus_stop_devices(video);  in acpi_video_bus_remove_notify_handler()
2027 	input_unregister_device(video->input);  in acpi_video_bus_remove_notify_handler()
2028 	video->input = NULL;  in acpi_video_bus_remove_notify_handler()
2031 static int acpi_video_bus_put_devices(struct acpi_video_bus *video)  in acpi_video_bus_put_devices()  argument
2035 	mutex_lock(&video->device_list_lock);  in acpi_video_bus_put_devices()
2036 	list_for_each_entry_safe(dev, next, &video->video_device_list, entry) {  in acpi_video_bus_put_devices()
2040 	mutex_unlock(&video->device_list_lock);  in acpi_video_bus_put_devices()
2049 	struct acpi_video_bus *video;  in acpi_video_bus_add()  local
2067 	video = kzalloc(sizeof(struct acpi_video_bus), GFP_KERNEL);  in acpi_video_bus_add()
2068 	if (!video)  in acpi_video_bus_add()
2084 	video->device = device;  in acpi_video_bus_add()
2087 	device->driver_data = video;  in acpi_video_bus_add()
2089 	acpi_video_bus_find_cap(video);  in acpi_video_bus_add()
2090 	error = acpi_video_bus_check(video);  in acpi_video_bus_add()
2094 	mutex_init(&video->device_list_lock);  in acpi_video_bus_add()
2095 	INIT_LIST_HEAD(&video->video_device_list);  in acpi_video_bus_add()
2097 	error = acpi_video_bus_get_devices(video, device);  in acpi_video_bus_add()
2103 	       video->flags.multihead ? "yes" : "no",  in acpi_video_bus_add()
2104 	       video->flags.rom ? "yes" : "no",  in acpi_video_bus_add()
2105 	       video->flags.post ? "yes" : "no");  in acpi_video_bus_add()
2107 	list_add_tail(&video->entry, &video_bus_head);  in acpi_video_bus_add()
2110 	acpi_video_bus_register_backlight(video);  in acpi_video_bus_add()
2111 	acpi_video_bus_add_notify_handler(video);  in acpi_video_bus_add()
2116 	acpi_video_bus_put_devices(video);  in acpi_video_bus_add()
2117 	kfree(video->attached_array);  in acpi_video_bus_add()
2119 	kfree(video);  in acpi_video_bus_add()
2127 	struct acpi_video_bus *video = NULL;  in acpi_video_bus_remove()  local
2133 	video = acpi_driver_data(device);  in acpi_video_bus_remove()
2135 	acpi_video_bus_remove_notify_handler(video);  in acpi_video_bus_remove()
2136 	acpi_video_bus_unregister_backlight(video);  in acpi_video_bus_remove()
2137 	acpi_video_bus_put_devices(video);  in acpi_video_bus_remove()
2140 	list_del(&video->entry);  in acpi_video_bus_remove()
2143 	kfree(video->attached_array);  in acpi_video_bus_remove()
2144 	kfree(video);  in acpi_video_bus_remove()
2265 	struct acpi_video_bus *video;  in acpi_video_unregister_backlight()  local
2270 		list_for_each_entry(video, &video_bus_head, entry)  in acpi_video_unregister_backlight()
2271 			acpi_video_bus_unregister_backlight(video);  in acpi_video_unregister_backlight()