3  * Samsung Laptop driver
30  * This driver is needed because a number of Samsung laptops do not hook
290  * samsung-laptop/    - debugfs root directory
322 	struct samsung_laptop *samsung;  member
394 static int sabi_command(struct samsung_laptop *samsung, u16 command,  in sabi_command()  argument
398 	const struct sabi_config *config = samsung->config;  in sabi_command()
400 	u16 port = readw(samsung->sabi + config->header_offsets.port);  in sabi_command()
403 	mutex_lock(&samsung->sabi_mutex);  in sabi_command()
415 	outb(readb(samsung->sabi + config->header_offsets.en_mem), port);  in sabi_command()
418 	writew(config->main_function, samsung->sabi_iface + SABI_IFACE_MAIN);  in sabi_command()
419 	writew(command, samsung->sabi_iface + SABI_IFACE_SUB);  in sabi_command()
420 	writeb(0, samsung->sabi_iface + SABI_IFACE_COMPLETE);  in sabi_command()
422 		writel(in->d0, samsung->sabi_iface + SABI_IFACE_DATA);  in sabi_command()
423 		writel(in->d1, samsung->sabi_iface + SABI_IFACE_DATA + 4);  in sabi_command()
424 		writew(in->d2, samsung->sabi_iface + SABI_IFACE_DATA + 8);  in sabi_command()
425 		writeb(in->d3, samsung->sabi_iface + SABI_IFACE_DATA + 10);  in sabi_command()
427 	outb(readb(samsung->sabi + config->header_offsets.iface_func), port);  in sabi_command()
430 	outb(readb(samsung->sabi + config->header_offsets.re_mem), port);  in sabi_command()
433 	complete = readb(samsung->sabi_iface + SABI_IFACE_COMPLETE);  in sabi_command()
434 	iface_data = readb(samsung->sabi_iface + SABI_IFACE_DATA);  in sabi_command()
451 		out->d0 = readl(samsung->sabi_iface + SABI_IFACE_DATA);  in sabi_command()
452 		out->d1 = readl(samsung->sabi_iface + SABI_IFACE_DATA + 4);  in sabi_command()
453 		out->d2 = readw(samsung->sabi_iface + SABI_IFACE_DATA + 2);  in sabi_command()
454 		out->d3 = readb(samsung->sabi_iface + SABI_IFACE_DATA + 1);  in sabi_command()
463 	mutex_unlock(&samsung->sabi_mutex);  in sabi_command()
468 static int sabi_set_commandb(struct samsung_laptop *samsung,  in sabi_set_commandb()  argument
474 	return sabi_command(samsung, command, &in, NULL);  in sabi_set_commandb()
477 static int read_brightness(struct samsung_laptop *samsung)  in read_brightness()  argument
479 	const struct sabi_config *config = samsung->config;  in read_brightness()
480 	const struct sabi_commands *commands = &samsung->config->commands;  in read_brightness()
485 	retval = sabi_command(samsung, commands->get_brightness,  in read_brightness()
499 static void set_brightness(struct samsung_laptop *samsung, u8 user_brightness)  in set_brightness()  argument
501 	const struct sabi_config *config = samsung->config;  in set_brightness()
502 	const struct sabi_commands *commands = &samsung->config->commands;  in set_brightness()
505 	if (samsung->has_stepping_quirk && user_level != 0) {  in set_brightness()
510 		if (user_brightness == read_brightness(samsung))  in set_brightness()
513 		sabi_set_commandb(samsung, commands->set_brightness, 0);  in set_brightness()
516 	sabi_set_commandb(samsung, commands->set_brightness, user_level);  in set_brightness()
521 	struct samsung_laptop *samsung = bl_get_data(bd);  in get_brightness()  local
523 	return read_brightness(samsung);  in get_brightness()
526 static void check_for_stepping_quirk(struct samsung_laptop *samsung)  in check_for_stepping_quirk()  argument
530 	int orig_level = read_brightness(samsung);  in check_for_stepping_quirk()
540 		set_brightness(samsung, 1);  in check_for_stepping_quirk()
542 	initial_level = read_brightness(samsung);  in check_for_stepping_quirk()
549 	samsung->has_stepping_quirk = false;  in check_for_stepping_quirk()
550 	set_brightness(samsung, check_level);  in check_for_stepping_quirk()
552 	if (read_brightness(samsung) != check_level) {  in check_for_stepping_quirk()
553 		samsung->has_stepping_quirk = true;  in check_for_stepping_quirk()
557 	set_brightness(samsung, orig_level);  in check_for_stepping_quirk()
562 	struct samsung_laptop *samsung = bl_get_data(bd);  in update_status()  local
563 	const struct sabi_commands *commands = &samsung->config->commands;  in update_status()
565 	set_brightness(samsung, bd->props.brightness);  in update_status()
568 		sabi_set_commandb(samsung, commands->set_backlight, 1);  in update_status()
570 		sabi_set_commandb(samsung, commands->set_backlight, 0);  in update_status()
583 	struct samsung_laptop *samsung = srfkill->samsung;  in seclinux_rfkill_set()  local
584 	const struct sabi_commands *commands = &samsung->config->commands;  in seclinux_rfkill_set()
586 	return sabi_set_commandb(samsung, commands->set_wireless_button,  in seclinux_rfkill_set()
594 static int swsmi_wireless_status(struct samsung_laptop *samsung,  in swsmi_wireless_status()  argument
597 	const struct sabi_commands *commands = &samsung->config->commands;  in swsmi_wireless_status()
599 	return sabi_command(samsung, commands->get_wireless_status,  in swsmi_wireless_status()
606 	struct samsung_laptop *samsung = srfkill->samsung;  in swsmi_rfkill_set()  local
607 	const struct sabi_commands *commands = &samsung->config->commands;  in swsmi_rfkill_set()
611 	ret = swsmi_wireless_status(samsung, &data);  in swsmi_rfkill_set()
625 	return sabi_command(samsung, commands->set_wireless_status,  in swsmi_rfkill_set()
632 	struct samsung_laptop *samsung = srfkill->samsung;  in swsmi_rfkill_query()  local
636 	ret = swsmi_wireless_status(samsung, &data);  in swsmi_rfkill_query()
658 	struct samsung_laptop *samsung = dev_get_drvdata(dev);  in get_performance_level()  local
659 	const struct sabi_config *config = samsung->config;  in get_performance_level()
666 	retval = sabi_command(samsung, commands->get_performance_level,  in get_performance_level()
683 	struct samsung_laptop *samsung = dev_get_drvdata(dev);  in set_performance_level()  local
684 	const struct sabi_config *config = samsung->config;  in set_performance_level()
695 			sabi_set_commandb(samsung,  in set_performance_level()
711 static int read_battery_life_extender(struct samsung_laptop *samsung)  in read_battery_life_extender()  argument
713 	const struct sabi_commands *commands = &samsung->config->commands;  in read_battery_life_extender()
722 	retval = sabi_command(samsung, commands->get_battery_life_extender,  in read_battery_life_extender()
734 static int write_battery_life_extender(struct samsung_laptop *samsung,  in write_battery_life_extender()  argument
737 	const struct sabi_commands *commands = &samsung->config->commands;  in write_battery_life_extender()
742 	return sabi_command(samsung, commands->set_battery_life_extender,  in write_battery_life_extender()
750 	struct samsung_laptop *samsung = dev_get_drvdata(dev);  in get_battery_life_extender()  local
753 	ret = read_battery_life_extender(samsung);  in get_battery_life_extender()
764 	struct samsung_laptop *samsung = dev_get_drvdata(dev);  in set_battery_life_extender()  local
770 	ret = write_battery_life_extender(samsung, !!value);  in set_battery_life_extender()
780 static int read_usb_charge(struct samsung_laptop *samsung)  in read_usb_charge()  argument
782 	const struct sabi_commands *commands = &samsung->config->commands;  in read_usb_charge()
791 	retval = sabi_command(samsung, commands->get_usb_charge,  in read_usb_charge()
803 static int write_usb_charge(struct samsung_laptop *samsung,  in write_usb_charge()  argument
806 	const struct sabi_commands *commands = &samsung->config->commands;  in write_usb_charge()
811 	return sabi_command(samsung, commands->set_usb_charge,  in write_usb_charge()
819 	struct samsung_laptop *samsung = dev_get_drvdata(dev);  in get_usb_charge()  local
822 	ret = read_usb_charge(samsung);  in get_usb_charge()
833 	struct samsung_laptop *samsung = dev_get_drvdata(dev);  in set_usb_charge()  local
839 	ret = write_usb_charge(samsung, !!value);  in set_usb_charge()
849 static int read_lid_handling(struct samsung_laptop *samsung)  in read_lid_handling()  argument
851 	const struct sabi_commands *commands = &samsung->config->commands;  in read_lid_handling()
859 	retval = sabi_command(samsung, commands->get_lid_handling,  in read_lid_handling()
868 static int write_lid_handling(struct samsung_laptop *samsung,  in write_lid_handling()  argument
871 	const struct sabi_commands *commands = &samsung->config->commands;  in write_lid_handling()
876 	return sabi_command(samsung, commands->set_lid_handling,  in write_lid_handling()
884 	struct samsung_laptop *samsung = dev_get_drvdata(dev);  in get_lid_handling()  local
887 	ret = read_lid_handling(samsung);  in get_lid_handling()
898 	struct samsung_laptop *samsung = dev_get_drvdata(dev);  in set_lid_handling()  local
904 	ret = write_lid_handling(samsung, !!value);  in set_lid_handling()
941 static void samsung_rfkill_exit(struct samsung_laptop *samsung)  in samsung_rfkill_exit()  argument
943 	if (samsung->wlan.rfkill) {  in samsung_rfkill_exit()
944 		rfkill_unregister(samsung->wlan.rfkill);  in samsung_rfkill_exit()
945 		rfkill_destroy(samsung->wlan.rfkill);  in samsung_rfkill_exit()
946 		samsung->wlan.rfkill = NULL;  in samsung_rfkill_exit()
948 	if (samsung->bluetooth.rfkill) {  in samsung_rfkill_exit()
949 		rfkill_unregister(samsung->bluetooth.rfkill);  in samsung_rfkill_exit()
950 		rfkill_destroy(samsung->bluetooth.rfkill);  in samsung_rfkill_exit()
951 		samsung->bluetooth.rfkill = NULL;  in samsung_rfkill_exit()
955 static int samsung_new_rfkill(struct samsung_laptop *samsung,  in samsung_new_rfkill()  argument
965 	arfkill->samsung = samsung;  in samsung_new_rfkill()
967 	*rfkill = rfkill_alloc(name, &samsung->platform_device->dev,  in samsung_new_rfkill()
985 static int __init samsung_rfkill_init_seclinux(struct samsung_laptop *samsung)  in samsung_rfkill_init_seclinux()  argument
987 	return samsung_new_rfkill(samsung, &samsung->wlan, "samsung-wlan",  in samsung_rfkill_init_seclinux()
991 static int __init samsung_rfkill_init_swsmi(struct samsung_laptop *samsung)  in samsung_rfkill_init_swsmi()  argument
996 	ret = swsmi_wireless_status(samsung, &data);  in samsung_rfkill_init_swsmi()
1001 			ret = samsung_rfkill_init_seclinux(samsung);  in samsung_rfkill_init_swsmi()
1008 		ret = samsung_new_rfkill(samsung, &samsung->wlan,  in samsung_rfkill_init_swsmi()
1009 					 "samsung-wlan",  in samsung_rfkill_init_swsmi()
1017 		ret = samsung_new_rfkill(samsung, &samsung->bluetooth,  in samsung_rfkill_init_swsmi()
1018 					 "samsung-bluetooth",  in samsung_rfkill_init_swsmi()
1027 		samsung_rfkill_exit(samsung);  in samsung_rfkill_init_swsmi()
1032 static int __init samsung_rfkill_init(struct samsung_laptop *samsung)  in samsung_rfkill_init()  argument
1034 	if (samsung->config->sabi_version == 2)  in samsung_rfkill_init()
1035 		return samsung_rfkill_init_seclinux(samsung);  in samsung_rfkill_init()
1036 	if (samsung->config->sabi_version == 3)  in samsung_rfkill_init()
1037 		return samsung_rfkill_init_swsmi(samsung);  in samsung_rfkill_init()
1041 static void samsung_lid_handling_exit(struct samsung_laptop *samsung)  in samsung_lid_handling_exit()  argument
1043 	if (samsung->quirks->lid_handling)  in samsung_lid_handling_exit()
1044 		write_lid_handling(samsung, 0);  in samsung_lid_handling_exit()
1047 static int __init samsung_lid_handling_init(struct samsung_laptop *samsung)  in samsung_lid_handling_init()  argument
1051 	if (samsung->quirks->lid_handling)  in samsung_lid_handling_init()
1052 		retval = write_lid_handling(samsung, 1);  in samsung_lid_handling_init()
1057 static int kbd_backlight_enable(struct samsung_laptop *samsung)  in kbd_backlight_enable()  argument
1059 	const struct sabi_commands *commands = &samsung->config->commands;  in kbd_backlight_enable()
1068 	retval = sabi_command(samsung, commands->kbd_backlight,  in kbd_backlight_enable()
1079 static int kbd_backlight_read(struct samsung_laptop *samsung)  in kbd_backlight_read()  argument
1081 	const struct sabi_commands *commands = &samsung->config->commands;  in kbd_backlight_read()
1087 	retval = sabi_command(samsung, commands->kbd_backlight,  in kbd_backlight_read()
1096 static int kbd_backlight_write(struct samsung_laptop *samsung, int brightness)  in kbd_backlight_write()  argument
1098 	const struct sabi_commands *commands = &samsung->config->commands;  in kbd_backlight_write()
1103 	return sabi_command(samsung, commands->kbd_backlight,  in kbd_backlight_write()
1109 	struct samsung_laptop *samsung;  in kbd_led_update()  local
1111 	samsung = container_of(work, struct samsung_laptop, kbd_led_work);  in kbd_led_update()
1112 	kbd_backlight_write(samsung, samsung->kbd_led_wk);  in kbd_led_update()
1118 	struct samsung_laptop *samsung;  in kbd_led_set()  local
1120 	samsung = container_of(led_cdev, struct samsung_laptop, kbd_led);  in kbd_led_set()
1122 	if (value > samsung->kbd_led.max_brightness)  in kbd_led_set()
1123 		value = samsung->kbd_led.max_brightness;  in kbd_led_set()
1127 	samsung->kbd_led_wk = value;  in kbd_led_set()
1128 	queue_work(samsung->led_workqueue, &samsung->kbd_led_work);  in kbd_led_set()
1133 	struct samsung_laptop *samsung;  in kbd_led_get()  local
1135 	samsung = container_of(led_cdev, struct samsung_laptop, kbd_led);  in kbd_led_get()
1136 	return kbd_backlight_read(samsung);  in kbd_led_get()
1139 static void samsung_leds_exit(struct samsung_laptop *samsung)  in samsung_leds_exit()  argument
1141 	led_classdev_unregister(&samsung->kbd_led);  in samsung_leds_exit()
1142 	if (samsung->led_workqueue)  in samsung_leds_exit()
1143 		destroy_workqueue(samsung->led_workqueue);  in samsung_leds_exit()
1146 static int __init samsung_leds_init(struct samsung_laptop *samsung)  in samsung_leds_init()  argument
1150 	samsung->led_workqueue = create_singlethread_workqueue("led_workqueue");  in samsung_leds_init()
1151 	if (!samsung->led_workqueue)  in samsung_leds_init()
1154 	if (kbd_backlight_enable(samsung) >= 0) {  in samsung_leds_init()
1155 		INIT_WORK(&samsung->kbd_led_work, kbd_led_update);  in samsung_leds_init()
1157 		samsung->kbd_led.name = "samsung::kbd_backlight";  in samsung_leds_init()
1158 		samsung->kbd_led.brightness_set = kbd_led_set;  in samsung_leds_init()
1159 		samsung->kbd_led.brightness_get = kbd_led_get;  in samsung_leds_init()
1160 		samsung->kbd_led.max_brightness = 8;  in samsung_leds_init()
1161 		if (samsung->quirks->four_kbd_backlight_levels)  in samsung_leds_init()
1162 			samsung->kbd_led.max_brightness = 4;  in samsung_leds_init()
1164 		ret = led_classdev_register(&samsung->platform_device->dev,  in samsung_leds_init()
1165 					   &samsung->kbd_led);  in samsung_leds_init()
1169 		samsung_leds_exit(samsung);  in samsung_leds_init()
1174 static void samsung_backlight_exit(struct samsung_laptop *samsung)  in samsung_backlight_exit()  argument
1176 	if (samsung->backlight_device) {  in samsung_backlight_exit()
1177 		backlight_device_unregister(samsung->backlight_device);  in samsung_backlight_exit()
1178 		samsung->backlight_device = NULL;  in samsung_backlight_exit()
1182 static int __init samsung_backlight_init(struct samsung_laptop *samsung)  in samsung_backlight_init()  argument
1187 	if (!samsung->handle_backlight)  in samsung_backlight_init()
1192 	props.max_brightness = samsung->config->max_brightness -  in samsung_backlight_init()
1193 		samsung->config->min_brightness;  in samsung_backlight_init()
1195 	bd = backlight_device_register("samsung",  in samsung_backlight_init()
1196 				       &samsung->platform_device->dev,  in samsung_backlight_init()
1197 				       samsung, &backlight_ops,  in samsung_backlight_init()
1202 	samsung->backlight_device = bd;  in samsung_backlight_init()
1203 	samsung->backlight_device->props.brightness = read_brightness(samsung);  in samsung_backlight_init()
1204 	samsung->backlight_device->props.power = FB_BLANK_UNBLANK;  in samsung_backlight_init()
1205 	backlight_update_status(samsung->backlight_device);  in samsung_backlight_init()
1214 	struct samsung_laptop *samsung = dev_get_drvdata(dev);  in samsung_sysfs_is_visible()  local
1218 		ok = !!samsung->config->performance_levels[0].name;  in samsung_sysfs_is_visible()
1220 		ok = !!(read_battery_life_extender(samsung) >= 0);  in samsung_sysfs_is_visible()
1222 		ok = !!(read_usb_charge(samsung) >= 0);  in samsung_sysfs_is_visible()
1224 		ok = !!(read_lid_handling(samsung) >= 0);  in samsung_sysfs_is_visible()
1234 static void samsung_sysfs_exit(struct samsung_laptop *samsung)  in samsung_sysfs_exit()  argument
1236 	struct platform_device *device = samsung->platform_device;  in samsung_sysfs_exit()
1241 static int __init samsung_sysfs_init(struct samsung_laptop *samsung)  in samsung_sysfs_init()  argument
1243 	struct platform_device *device = samsung->platform_device;  in samsung_sysfs_init()
1251 	struct samsung_laptop *samsung = m->private;  in samsung_laptop_call_show()  local
1252 	struct sabi_data *sdata = &samsung->debug.data;  in samsung_laptop_call_show()
1256 		   samsung->debug.command,  in samsung_laptop_call_show()
1259 	ret = sabi_command(samsung, samsung->debug.command, sdata, sdata);  in samsung_laptop_call_show()
1263 			   samsung->debug.command);  in samsung_laptop_call_show()
1273 static void samsung_debugfs_exit(struct samsung_laptop *samsung)  in samsung_debugfs_exit()  argument
1275 	debugfs_remove_recursive(samsung->debug.root);  in samsung_debugfs_exit()
1278 static void samsung_debugfs_init(struct samsung_laptop *samsung)  in samsung_debugfs_init()  argument
1282 	root = debugfs_create_dir("samsung-laptop", NULL);  in samsung_debugfs_init()
1283 	samsung->debug.root = root;  in samsung_debugfs_init()
1285 	samsung->debug.f0000_wrapper.data = samsung->f0000_segment;  in samsung_debugfs_init()
1286 	samsung->debug.f0000_wrapper.size = 0xffff;  in samsung_debugfs_init()
1288 	samsung->debug.data_wrapper.data = &samsung->debug.data;  in samsung_debugfs_init()
1289 	samsung->debug.data_wrapper.size = sizeof(samsung->debug.data);  in samsung_debugfs_init()
1291 	samsung->debug.sdiag_wrapper.data = samsung->sdiag;  in samsung_debugfs_init()
1292 	samsung->debug.sdiag_wrapper.size = strlen(samsung->sdiag);  in samsung_debugfs_init()
1295 			   &samsung->debug.command);  in samsung_debugfs_init()
1297 			   &samsung->debug.data.d0);  in samsung_debugfs_init()
1299 			   &samsung->debug.data.d1);  in samsung_debugfs_init()
1301 			   &samsung->debug.data.d2);  in samsung_debugfs_init()
1303 			  &samsung->debug.data.d3);  in samsung_debugfs_init()
1305 			    &samsung->debug.data_wrapper);  in samsung_debugfs_init()
1307 			    &samsung->debug.f0000_wrapper);  in samsung_debugfs_init()
1308 	debugfs_create_file("call", S_IFREG | S_IRUGO, root, samsung,  in samsung_debugfs_init()
1311 			    &samsung->debug.sdiag_wrapper);  in samsung_debugfs_init()
1314 static void samsung_sabi_exit(struct samsung_laptop *samsung)  in samsung_sabi_exit()  argument
1316 	const struct sabi_config *config = samsung->config;  in samsung_sabi_exit()
1320 		sabi_set_commandb(samsung, config->commands.set_linux, 0x80);  in samsung_sabi_exit()
1322 	if (samsung->sabi_iface) {  in samsung_sabi_exit()
1323 		iounmap(samsung->sabi_iface);  in samsung_sabi_exit()
1324 		samsung->sabi_iface = NULL;  in samsung_sabi_exit()
1326 	if (samsung->f0000_segment) {  in samsung_sabi_exit()
1327 		iounmap(samsung->f0000_segment);  in samsung_sabi_exit()
1328 		samsung->f0000_segment = NULL;  in samsung_sabi_exit()
1331 	samsung->config = NULL;  in samsung_sabi_exit()
1334 static __init void samsung_sabi_infos(struct samsung_laptop *samsung, int loca,  in samsung_sabi_infos()  argument
1337 	const struct sabi_config *config = samsung->config;  in samsung_sabi_infos()
1344 	       readw(samsung->sabi + config->header_offsets.port));  in samsung_sabi_infos()
1346 	       readb(samsung->sabi + config->header_offsets.iface_func));  in samsung_sabi_infos()
1348 	       readb(samsung->sabi + config->header_offsets.en_mem));  in samsung_sabi_infos()
1350 	       readb(samsung->sabi + config->header_offsets.re_mem));  in samsung_sabi_infos()
1352 	       readw(samsung->sabi + config->header_offsets.data_offset));  in samsung_sabi_infos()
1354 	       readw(samsung->sabi + config->header_offsets.data_segment));  in samsung_sabi_infos()
1359 static void __init samsung_sabi_diag(struct samsung_laptop *samsung)  in samsung_sabi_diag()  argument
1361 	int loca = find_signature(samsung->f0000_segment, "SDiaG@");  in samsung_sabi_diag()
1374 	for (i = 0; loca < 0xffff && i < sizeof(samsung->sdiag) - 1; loca++) {  in samsung_sabi_diag()
1375 		char temp = readb(samsung->f0000_segment + loca);  in samsung_sabi_diag()
1378 			samsung->sdiag[i++] = temp;  in samsung_sabi_diag()
1383 	if (debug && samsung->sdiag[0])  in samsung_sabi_diag()
1384 		pr_info("sdiag: %s", samsung->sdiag);  in samsung_sabi_diag()
1387 static int __init samsung_sabi_init(struct samsung_laptop *samsung)  in samsung_sabi_init()  argument
1396 	samsung->f0000_segment = ioremap(0xf0000, 0xffff);  in samsung_sabi_init()
1397 	if (!samsung->f0000_segment) {  in samsung_sabi_init()
1404 	samsung_sabi_diag(samsung);  in samsung_sabi_init()
1408 		samsung->config = &sabi_configs[i];  in samsung_sabi_init()
1409 		loca = find_signature(samsung->f0000_segment,  in samsung_sabi_init()
1410 				      samsung->config->test_string);  in samsung_sabi_init()
1422 	config = samsung->config;  in samsung_sabi_init()
1427 	samsung->sabi = (samsung->f0000_segment + loca);  in samsung_sabi_init()
1430 	ifaceP = (readw(samsung->sabi + config->header_offsets.data_segment) & 0x0ffff) << 4;  in samsung_sabi_init()
1431 	ifaceP += readw(samsung->sabi + config->header_offsets.data_offset) & 0x0ffff;  in samsung_sabi_init()
1434 		samsung_sabi_infos(samsung, loca, ifaceP);  in samsung_sabi_init()
1436 	samsung->sabi_iface = ioremap(ifaceP, 16);  in samsung_sabi_init()
1437 	if (!samsung->sabi_iface) {  in samsung_sabi_init()
1445 		int retval = sabi_set_commandb(samsung,  in samsung_sabi_init()
1455 	if (samsung->handle_backlight)  in samsung_sabi_init()
1456 		check_for_stepping_quirk(samsung);  in samsung_sabi_init()
1459 		samsung->config->test_string);  in samsung_sabi_init()
1463 		samsung_sabi_exit(samsung);  in samsung_sabi_init()
1468 static void samsung_platform_exit(struct samsung_laptop *samsung)  in samsung_platform_exit()  argument
1470 	if (samsung->platform_device) {  in samsung_platform_exit()
1471 		platform_device_unregister(samsung->platform_device);  in samsung_platform_exit()
1472 		samsung->platform_device = NULL;  in samsung_platform_exit()
1479 	struct samsung_laptop *samsung;  in samsung_pm_notification()  local
1481 	samsung = container_of(nb, struct samsung_laptop, pm_nb);  in samsung_pm_notification()
1483 	    samsung->quirks->enable_kbd_backlight)  in samsung_pm_notification()
1484 		kbd_backlight_enable(samsung);  in samsung_pm_notification()
1486 	if (val == PM_POST_HIBERNATION && samsung->quirks->lid_handling)  in samsung_pm_notification()
1487 		write_lid_handling(samsung, 1);  in samsung_pm_notification()
1492 static int __init samsung_platform_init(struct samsung_laptop *samsung)  in samsung_platform_init()  argument
1496 	pdev = platform_device_register_simple("samsung", -1, NULL, 0);  in samsung_platform_init()
1500 	samsung->platform_device = pdev;  in samsung_platform_init()
1501 	platform_set_drvdata(samsung->platform_device, samsung);  in samsung_platform_init()
1517 					"SAMSUNG ELECTRONICS CO., LTD."),
1524 					"SAMSUNG ELECTRONICS CO., LTD."),
1531 					"SAMSUNG ELECTRONICS CO., LTD."),
1538 					"SAMSUNG ELECTRONICS CO., LTD."),
1546 		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1556 		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1566 		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1576 		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1586 		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1596 		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1606 		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1616 		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1626 		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1635 		DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1648 	struct samsung_laptop *samsung;  in samsung_init()  local
1658 	samsung = kzalloc(sizeof(*samsung), GFP_KERNEL);  in samsung_init()
1659 	if (!samsung)  in samsung_init()
1662 	mutex_init(&samsung->sabi_mutex);  in samsung_init()
1663 	samsung->handle_backlight = true;  in samsung_init()
1664 	samsung->quirks = quirks;  in samsung_init()
1667 	if (samsung->quirks->broken_acpi_video)  in samsung_init()
1669 	if (samsung->quirks->use_native_backlight)  in samsung_init()
1673 		samsung->handle_backlight = false;  in samsung_init()
1676 	ret = samsung_platform_init(samsung);  in samsung_init()
1680 	ret = samsung_sabi_init(samsung);  in samsung_init()
1684 	ret = samsung_sysfs_init(samsung);  in samsung_init()
1688 	ret = samsung_backlight_init(samsung);  in samsung_init()
1692 	ret = samsung_rfkill_init(samsung);  in samsung_init()
1696 	ret = samsung_leds_init(samsung);  in samsung_init()
1700 	ret = samsung_lid_handling_init(samsung);  in samsung_init()
1704 	samsung_debugfs_init(samsung);  in samsung_init()
1706 	samsung->pm_nb.notifier_call = samsung_pm_notification;  in samsung_init()
1707 	register_pm_notifier(&samsung->pm_nb);  in samsung_init()
1709 	samsung_platform_device = samsung->platform_device;  in samsung_init()
1713 	samsung_leds_exit(samsung);  in samsung_init()
1715 	samsung_rfkill_exit(samsung);  in samsung_init()
1717 	samsung_backlight_exit(samsung);  in samsung_init()
1719 	samsung_sysfs_exit(samsung);  in samsung_init()
1721 	samsung_sabi_exit(samsung);  in samsung_init()
1723 	samsung_platform_exit(samsung);  in samsung_init()
1725 	kfree(samsung);  in samsung_init()
1731 	struct samsung_laptop *samsung;  in samsung_exit()  local
1733 	samsung = platform_get_drvdata(samsung_platform_device);  in samsung_exit()
1734 	unregister_pm_notifier(&samsung->pm_nb);  in samsung_exit()
1736 	samsung_debugfs_exit(samsung);  in samsung_exit()
1737 	samsung_lid_handling_exit(samsung);  in samsung_exit()
1738 	samsung_leds_exit(samsung);  in samsung_exit()
1739 	samsung_rfkill_exit(samsung);  in samsung_exit()
1740 	samsung_backlight_exit(samsung);  in samsung_exit()
1741 	samsung_sysfs_exit(samsung);  in samsung_exit()
1742 	samsung_sabi_exit(samsung);  in samsung_exit()
1743 	samsung_platform_exit(samsung);  in samsung_exit()
1745 	kfree(samsung);  in samsung_exit()
1753 MODULE_DESCRIPTION("Samsung Backlight driver");