1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*-*-linux-c-*-*/
10     Adrian Yee <brewt-fujitsu@brewt.org>
12   Templated from msi-laptop.c and thinkpad_acpi.c which is copyright
18  * fujitsu-laptop.c - Fujitsu laptop support, providing access to additional
22  * This driver implements a vendor-specific backlight control interface for
27  * P8010.  It should work on most P-series and S-series Lifebooks, but
47 #include <linux/input/sparse-keymap.h>
69 /* FUNC interface - command values */
75 /* FUNC interface - responses */
78 /* FUNC interface - status flags */
86 /* FUNC interface - LED control */
96 /* FUNC interface - backlight power control */
101 /* FUNC interface - battery control interface */
121 static int use_alt_lcd_levels = -1;
164 	status = acpi_evaluate_integer(device->handle, "FUNC", &arg_list,  in call_fext_func()
167 		acpi_handle_err(device->handle, "Failed to evaluate FUNC\n");  in call_fext_func()
168 		return -ENODEV;  in call_fext_func()
171 	acpi_handle_debug(device->handle,  in call_fext_func()
191 		return -EINVAL;  in charge_control_end_threshold_store()
206 		return -EINVAL;  in charge_control_end_threshold_store()
231 	return device_create_file(&battery->dev,  in fujitsu_battery_add_hook()
238 	device_remove_file(&battery->dev,  in fujitsu_battery_remove_hook()
259 	priv->charge_control_supported = false;  in fujitsu_battery_charge_control_add()
269 		return -ENODEV;  in fujitsu_battery_charge_control_add()
271 	priv->charge_control_supported = true;  in fujitsu_battery_charge_control_add()
281 	if (priv->charge_control_supported)  in fujitsu_battery_charge_control_remove()
294 	case -1:  in set_lcd_level()
295 		if (acpi_has_method(device->handle, "SBL2"))  in set_lcd_level()
308 	acpi_handle_debug(device->handle, "set lcd level via %s [%d]\n", method,  in set_lcd_level()
311 	if (level < 0 || level >= priv->max_brightness)  in set_lcd_level()
312 		return -EINVAL;  in set_lcd_level()
314 	status = acpi_execute_simple_method(device->handle, method, level);  in set_lcd_level()
316 		acpi_handle_err(device->handle, "Failed to evaluate %s\n",  in set_lcd_level()
318 		return -ENODEV;  in set_lcd_level()
321 	priv->brightness_level = level;  in set_lcd_level()
332 	acpi_handle_debug(device->handle, "get lcd level via GBLL\n");  in get_lcd_level()
334 	status = acpi_evaluate_integer(device->handle, "GBLL", NULL, &state);  in get_lcd_level()
338 	priv->brightness_level = state & 0x0fffffff;  in get_lcd_level()
340 	return priv->brightness_level;  in get_lcd_level()
349 	acpi_handle_debug(device->handle, "get max lcd level via RBLL\n");  in get_max_brightness()
351 	status = acpi_evaluate_integer(device->handle, "RBLL", NULL, &state);  in get_max_brightness()
353 		return -1;  in get_max_brightness()
355 	priv->max_brightness = state;  in get_max_brightness()
357 	return priv->max_brightness;  in get_max_brightness()
366 	return b->props.power == BACKLIGHT_POWER_OFF ? 0 : get_lcd_level(device);  in bl_get_brightness()
374 		if (b->props.power == BACKLIGHT_POWER_OFF)  in bl_update_status()
382 	return set_lcd_level(device, b->props.brightness);  in bl_update_status()
395 	if (!(priv->flags_supported & FLAG_LID))  in lid_show()
397 	if (priv->flags_state & FLAG_LID)  in lid_show()
408 	if (!(priv->flags_supported & FLAG_DOCK))  in dock_show()
410 	if (priv->flags_state & FLAG_DOCK)  in dock_show()
421 	if (!(priv->flags_supported & FLAG_RFKILL))  in radios_show()
423 	if (priv->flags_state & FLAG_RFKILL)  in radios_show()
446 		   .name = "fujitsu-laptop",
463 	priv->input = devm_input_allocate_device(&device->dev);  in acpi_fujitsu_bl_input_setup()
464 	if (!priv->input)  in acpi_fujitsu_bl_input_setup()
465 		return -ENOMEM;  in acpi_fujitsu_bl_input_setup()
467 	snprintf(priv->phys, sizeof(priv->phys), "%s/video/input0",  in acpi_fujitsu_bl_input_setup()
470 	priv->input->name = acpi_device_name(device);  in acpi_fujitsu_bl_input_setup()
471 	priv->input->phys = priv->phys;  in acpi_fujitsu_bl_input_setup()
472 	priv->input->id.bustype = BUS_HOST;  in acpi_fujitsu_bl_input_setup()
473 	priv->input->id.product = 0x06;  in acpi_fujitsu_bl_input_setup()
475 	ret = sparse_keymap_setup(priv->input, keymap_backlight, NULL);  in acpi_fujitsu_bl_input_setup()
479 	return input_register_device(priv->input);  in acpi_fujitsu_bl_input_setup()
486 		.brightness = priv->brightness_level,  in fujitsu_backlight_register()
487 		.max_brightness = priv->max_brightness - 1,  in fujitsu_backlight_register()
492 	bd = devm_backlight_device_register(&device->dev, "fujitsu-laptop",  in fujitsu_backlight_register()
493 					    &device->dev, device,  in fujitsu_backlight_register()
498 	priv->bl_device = bd;  in fujitsu_backlight_register()
509 		return -ENODEV;  in acpi_fujitsu_bl_add()
511 	priv = devm_kzalloc(&device->dev, sizeof(*priv), GFP_KERNEL);  in acpi_fujitsu_bl_add()
513 		return -ENOMEM;  in acpi_fujitsu_bl_add()
518 	device->driver_data = priv;  in acpi_fujitsu_bl_add()
524 		priv->max_brightness = FUJITSU_LCD_N_LEVELS;  in acpi_fujitsu_bl_add()
542 		acpi_handle_info(device->handle, "unsupported event [0x%x]\n",  in acpi_fujitsu_bl_notify()
544 		sparse_keymap_report_event(priv->input, -1, 1, true);  in acpi_fujitsu_bl_notify()
548 	oldb = priv->brightness_level;  in acpi_fujitsu_bl_notify()
550 	newb = priv->brightness_level;  in acpi_fujitsu_bl_notify()
552 	acpi_handle_debug(device->handle,  in acpi_fujitsu_bl_notify()
553 			  "brightness button event [%i -> %i]\n", oldb, newb);  in acpi_fujitsu_bl_notify()
561 	sparse_keymap_report_event(priv->input, oldb < newb, 1, true);  in acpi_fujitsu_bl_notify()
599 	{ KE_KEY, KEY4_CODE, { KEY_EMAIL } }, /* "E-mail" */
607 static const struct key_entry *keymap = keymap_default;  variable
611 	pr_info("Identified laptop model '%s'\n", id->ident);  in fujitsu_laptop_dmi_keymap_override()
612 	keymap = id->driver_data;  in fujitsu_laptop_dmi_keymap_override()
661 	priv->input = devm_input_allocate_device(&device->dev);  in acpi_fujitsu_laptop_input_setup()
662 	if (!priv->input)  in acpi_fujitsu_laptop_input_setup()
663 		return -ENOMEM;  in acpi_fujitsu_laptop_input_setup()
665 	snprintf(priv->phys, sizeof(priv->phys), "%s/input0",  in acpi_fujitsu_laptop_input_setup()
668 	priv->input->name = acpi_device_name(device);  in acpi_fujitsu_laptop_input_setup()
669 	priv->input->phys = priv->phys;  in acpi_fujitsu_laptop_input_setup()
670 	priv->input->id.bustype = BUS_HOST;  in acpi_fujitsu_laptop_input_setup()
673 	ret = sparse_keymap_setup(priv->input, keymap, NULL);  in acpi_fujitsu_laptop_input_setup()
677 	return input_register_device(priv->input);  in acpi_fujitsu_laptop_input_setup()
685 	priv->pf_device = platform_device_alloc("fujitsu-laptop", PLATFORM_DEVID_NONE);  in fujitsu_laptop_platform_add()
686 	if (!priv->pf_device)  in fujitsu_laptop_platform_add()
687 		return -ENOMEM;  in fujitsu_laptop_platform_add()
689 	platform_set_drvdata(priv->pf_device, priv);  in fujitsu_laptop_platform_add()
691 	ret = platform_device_add(priv->pf_device);  in fujitsu_laptop_platform_add()
695 	ret = sysfs_create_group(&priv->pf_device->dev.kobj,  in fujitsu_laptop_platform_add()
703 	platform_device_del(priv->pf_device);  in fujitsu_laptop_platform_add()
705 	platform_device_put(priv->pf_device);  in fujitsu_laptop_platform_add()
714 	sysfs_remove_group(&priv->pf_device->dev.kobj,  in fujitsu_laptop_platform_remove()
716 	platform_device_unregister(priv->pf_device);  in fujitsu_laptop_platform_remove()
722 	struct acpi_device *device = to_acpi_device(cdev->dev->parent);  in logolamp_set()
741 	struct acpi_device *device = to_acpi_device(cdev->dev->parent);  in logolamp_get()
758 	struct acpi_device *device = to_acpi_device(cdev->dev->parent);  in kblamps_set()
770 	struct acpi_device *device = to_acpi_device(cdev->dev->parent);  in kblamps_get()
783 	struct acpi_device *device = to_acpi_device(cdev->dev->parent);  in radio_led_set()
795 	struct acpi_device *device = to_acpi_device(cdev->dev->parent);  in radio_led_get()
807 	struct acpi_device *device = to_acpi_device(cdev->dev->parent);  in eco_led_set()
821 	struct acpi_device *device = to_acpi_device(cdev->dev->parent);  in eco_led_get()
838 		led = devm_kzalloc(&device->dev, sizeof(*led), GFP_KERNEL);  in acpi_fujitsu_laptop_leds_register()
840 			return -ENOMEM;  in acpi_fujitsu_laptop_leds_register()
842 		led->name = "fujitsu::logolamp";  in acpi_fujitsu_laptop_leds_register()
843 		led->brightness_set_blocking = logolamp_set;  in acpi_fujitsu_laptop_leds_register()
844 		led->brightness_get = logolamp_get;  in acpi_fujitsu_laptop_leds_register()
845 		ret = devm_led_classdev_register(&device->dev, led);  in acpi_fujitsu_laptop_leds_register()
853 		led = devm_kzalloc(&device->dev, sizeof(*led), GFP_KERNEL);  in acpi_fujitsu_laptop_leds_register()
855 			return -ENOMEM;  in acpi_fujitsu_laptop_leds_register()
857 		led->name = "fujitsu::kblamps";  in acpi_fujitsu_laptop_leds_register()
858 		led->brightness_set_blocking = kblamps_set;  in acpi_fujitsu_laptop_leds_register()
859 		led->brightness_get = kblamps_get;  in acpi_fujitsu_laptop_leds_register()
860 		ret = devm_led_classdev_register(&device->dev, led);  in acpi_fujitsu_laptop_leds_register()
874 	if (priv->flags_supported & BIT(17)) {  in acpi_fujitsu_laptop_leds_register()
875 		led = devm_kzalloc(&device->dev, sizeof(*led), GFP_KERNEL);  in acpi_fujitsu_laptop_leds_register()
877 			return -ENOMEM;  in acpi_fujitsu_laptop_leds_register()
879 		led->name = "fujitsu::radio_led";  in acpi_fujitsu_laptop_leds_register()
880 		led->brightness_set_blocking = radio_led_set;  in acpi_fujitsu_laptop_leds_register()
881 		led->brightness_get = radio_led_get;  in acpi_fujitsu_laptop_leds_register()
882 		led->default_trigger = "rfkill-any";  in acpi_fujitsu_laptop_leds_register()
883 		ret = devm_led_classdev_register(&device->dev, led);  in acpi_fujitsu_laptop_leds_register()
896 		led = devm_kzalloc(&device->dev, sizeof(*led), GFP_KERNEL);  in acpi_fujitsu_laptop_leds_register()
898 			return -ENOMEM;  in acpi_fujitsu_laptop_leds_register()
900 		led->name = "fujitsu::eco_led";  in acpi_fujitsu_laptop_leds_register()
901 		led->brightness_set_blocking = eco_led_set;  in acpi_fujitsu_laptop_leds_register()
902 		led->brightness_get = eco_led_get;  in acpi_fujitsu_laptop_leds_register()
903 		ret = devm_led_classdev_register(&device->dev, led);  in acpi_fujitsu_laptop_leds_register()
916 	priv = devm_kzalloc(&device->dev, sizeof(*priv), GFP_KERNEL);  in acpi_fujitsu_laptop_add()
918 		return -ENOMEM;  in acpi_fujitsu_laptop_add()
925 	device->driver_data = priv;  in acpi_fujitsu_laptop_add()
928 	spin_lock_init(&priv->fifo_lock);  in acpi_fujitsu_laptop_add()
929 	ret = kfifo_alloc(&priv->fifo, RINGBUFFERSIZE * sizeof(int),  in acpi_fujitsu_laptop_add()
940 	acpi_handle_debug(device->handle, "Discarded %i ringbuffer entries\n",  in acpi_fujitsu_laptop_add()
943 	priv->flags_supported = call_fext_func(device, FUNC_FLAGS, 0x0, 0x0,  in acpi_fujitsu_laptop_add()
948 	if (priv->flags_supported == UNSUPPORTED_CMD)  in acpi_fujitsu_laptop_add()
949 		priv->flags_supported = 0;  in acpi_fujitsu_laptop_add()
951 	if (priv->flags_supported)  in acpi_fujitsu_laptop_add()
952 		priv->flags_state = call_fext_func(device, FUNC_FLAGS, 0x4, 0x0,  in acpi_fujitsu_laptop_add()
955 	/* Suspect this is a keymap of the application panel, print it */  in acpi_fujitsu_laptop_add()
956 	acpi_handle_info(device->handle, "BTNI: [0x%x]\n",  in acpi_fujitsu_laptop_add()
960 	if (fujitsu_bl && fujitsu_bl->bl_device &&  in acpi_fujitsu_laptop_add()
964 			fujitsu_bl->bl_device->props.power = BACKLIGHT_POWER_OFF;  in acpi_fujitsu_laptop_add()
966 			fujitsu_bl->bl_device->props.power = BACKLIGHT_POWER_ON;  in acpi_fujitsu_laptop_add()
988 	kfifo_free(&priv->fifo);  in acpi_fujitsu_laptop_add()
1001 	kfifo_free(&priv->fifo);  in acpi_fujitsu_laptop_remove()
1009 	ret = kfifo_in_locked(&priv->fifo, (unsigned char *)&scancode,  in acpi_fujitsu_laptop_press()
1010 			      sizeof(scancode), &priv->fifo_lock);  in acpi_fujitsu_laptop_press()
1012 		dev_info(&priv->input->dev, "Could not push scancode [0x%x]\n",  in acpi_fujitsu_laptop_press()
1016 	sparse_keymap_report_event(priv->input, scancode, 1, false);  in acpi_fujitsu_laptop_press()
1017 	dev_dbg(&priv->input->dev, "Push scancode into ringbuffer [0x%x]\n",  in acpi_fujitsu_laptop_press()
1027 		ret = kfifo_out_locked(&priv->fifo, (unsigned char *)&scancode,  in acpi_fujitsu_laptop_release()
1028 				       sizeof(scancode), &priv->fifo_lock);  in acpi_fujitsu_laptop_release()
1031 		sparse_keymap_report_event(priv->input, scancode, 0, false);  in acpi_fujitsu_laptop_release()
1032 		dev_dbg(&priv->input->dev,  in acpi_fujitsu_laptop_release()
1045 		acpi_handle_info(device->handle, "Unsupported event [0x%x]\n",  in acpi_fujitsu_laptop_notify()
1047 		sparse_keymap_report_event(priv->input, -1, 1, true);  in acpi_fujitsu_laptop_notify()
1051 	if (priv->flags_supported)  in acpi_fujitsu_laptop_notify()
1052 		priv->flags_state = call_fext_func(device, FUNC_FLAGS, 0x4, 0x0,  in acpi_fujitsu_laptop_notify()
1059 		if (sparse_keymap_entry_from_scancode(priv->input, scancode))  in acpi_fujitsu_laptop_notify()
1064 			acpi_handle_info(device->handle,  in acpi_fujitsu_laptop_notify()
1069 	 * First seen on the Skylake-based Lifebook E736/E746/E756), the  in acpi_fujitsu_laptop_notify()
1070 	 * touchpad toggle hotkey (Fn+F4) is handled in software. Other models  in acpi_fujitsu_laptop_notify()
1074 	if (priv->flags_supported & (FLAG_SOFTKEYS)) {  in acpi_fujitsu_laptop_notify()
1078 			sparse_keymap_report_event(priv->input, BIT(i), 1, true);  in acpi_fujitsu_laptop_notify()
1169 MODULE_PARM_DESC(use_alt_lcd_levels, "Interface used for setting LCD brightness level (-1 = auto, 0…