4 Copyright (C) 2007,2008 Jonathan Woithe <jwoithe@just42.net>
5 Copyright (C) 2008 Peter Gruber <nokos@gmx.net>
6 Copyright (C) 2008 Tony Vroon <tony@linx.net>
8 Copyright (C) 2003 Shane Spencer <shane@bogomip.com>
9 Adrian Yee <brewt-fujitsu@brewt.org>
11 Templated from msi-laptop.c and thinkpad_acpi.c which is copyright
12 by its respective authors.
14 This program is free software; you can redistribute it and/or modify
15 it under the terms of the GNU General Public License as published by
16 the Free Software Foundation; either version 2 of the License, or
17 (at your option) any later version.
19 This program is distributed in the hope that it will be useful, but
20 WITHOUT ANY WARRANTY; without even the implied warranty of
21 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 General Public License for more details.
24 You should have received a copy of the GNU General Public License
25 along with this program; if not, write to the Free Software
26 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
31 * fujitsu-laptop.c - Fujitsu laptop support, providing access to additional
32 * features made available on a range of Fujitsu laptops including the
33 * P2xxx/P5xxx/S6xxx/S7xxx series.
35 * This driver exports a few files in /sys/devices/platform/fujitsu-laptop/;
36 * others may be added at a later date.
38 * lcd_level - Screen brightness: contains a single integer in the
41 * In addition to these platform device attributes the driver
42 * registers itself in the Linux backlight control subsystem and is
43 * available to userspace under /sys/class/backlight/fujitsu-laptop/.
45 * Hotkeys present on certain Fujitsu laptops (eg: the S6xxx series) are
46 * also supported by this driver.
48 * This driver has been tested on a Fujitsu Lifebook S6410, S7020 and
49 * P8010. It should work on most P-series and S-series Lifebooks, but
52 * The module parameter use_alt_lcd_levels switches between different ACPI
53 * brightness controls which are used by different Fujitsu laptops. In most
54 * cases the correct method is automatically detected. "use_alt_lcd_levels=1"
55 * is applicable for a Fujitsu Lifebook S6410 if autodetection fails.
59 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
61 #include <linux/module.h>
62 #include <linux/kernel.h>
63 #include <linux/init.h>
64 #include <linux/acpi.h>
65 #include <linux/dmi.h>
66 #include <linux/backlight.h>
68 #include <linux/input.h>
69 #include <linux/kfifo.h>
70 #include <linux/platform_device.h>
71 #include <linux/slab.h>
72 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
73 #include <linux/leds.h>
75 #include <acpi/video.h>
77 #define FUJITSU_DRIVER_VERSION "0.6.0"
79 #define FUJITSU_LCD_N_LEVELS 8
81 #define ACPI_FUJITSU_CLASS "fujitsu"
82 #define ACPI_FUJITSU_HID "FUJ02B1"
83 #define ACPI_FUJITSU_DRIVER_NAME "Fujitsu laptop FUJ02B1 ACPI brightness driver"
84 #define ACPI_FUJITSU_DEVICE_NAME "Fujitsu FUJ02B1"
85 #define ACPI_FUJITSU_HOTKEY_HID "FUJ02E3"
86 #define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver"
87 #define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3"
89 #define ACPI_FUJITSU_NOTIFY_CODE1 0x80
91 #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86
92 #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87
94 /* FUNC interface - command values */
95 #define FUNC_RFKILL 0x1000
96 #define FUNC_LEDS 0x1001
97 #define FUNC_BUTTONS 0x1002
98 #define FUNC_BACKLIGHT 0x1004
100 /* FUNC interface - responses */
101 #define UNSUPPORTED_CMD 0x80000000
103 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
104 /* FUNC interface - LED control */
105 #define FUNC_LED_OFF 0x1
106 #define FUNC_LED_ON 0x30001
107 #define KEYBOARD_LAMPS 0x100
108 #define LOGOLAMP_POWERON 0x2000
109 #define LOGOLAMP_ALWAYS 0x4000
113 #define KEY1_CODE 0x410 /* codes for the keys in the GIRB register */
114 #define KEY2_CODE 0x411
115 #define KEY3_CODE 0x412
116 #define KEY4_CODE 0x413
118 #define MAX_HOTKEY_RINGBUFFER_SIZE 100
119 #define RINGBUFFERSIZE 40
122 #define FUJLAPTOP_LOG ACPI_FUJITSU_HID ": "
123 #define FUJLAPTOP_ERR KERN_ERR FUJLAPTOP_LOG
124 #define FUJLAPTOP_NOTICE KERN_NOTICE FUJLAPTOP_LOG
125 #define FUJLAPTOP_INFO KERN_INFO FUJLAPTOP_LOG
126 #define FUJLAPTOP_DEBUG KERN_DEBUG FUJLAPTOP_LOG
128 #define FUJLAPTOP_DBG_ALL 0xffff
129 #define FUJLAPTOP_DBG_ERROR 0x0001
130 #define FUJLAPTOP_DBG_WARN 0x0002
131 #define FUJLAPTOP_DBG_INFO 0x0004
132 #define FUJLAPTOP_DBG_TRACE 0x0008
134 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
135 #define vdbg_printk(a_dbg_level, format, arg...) \
136 do { if (dbg_level & a_dbg_level) \
137 printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \
140 #define vdbg_printk(a_dbg_level, format, arg...) \
144 /* Device controlling the backlight and associated keys */
146 acpi_handle acpi_handle;
147 struct acpi_device *dev;
148 struct input_dev *input;
150 struct backlight_device *bl_device;
151 struct platform_device *pf_device;
152 int keycode1, keycode2, keycode3, keycode4;
154 unsigned int max_brightness;
155 unsigned int brightness_changed;
156 unsigned int brightness_level;
159 static struct fujitsu_t *fujitsu;
160 static int use_alt_lcd_levels = -1;
161 static int disable_brightness_adjust = -1;
163 /* Device used to access other hotkeys on the laptop */
164 struct fujitsu_hotkey_t {
165 acpi_handle acpi_handle;
166 struct acpi_device *dev;
167 struct input_dev *input;
169 struct platform_device *pf_device;
171 spinlock_t fifo_lock;
172 int rfkill_supported;
174 int logolamp_registered;
175 int kblamps_registered;
178 static struct fujitsu_hotkey_t *fujitsu_hotkey;
180 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event);
182 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
183 static enum led_brightness logolamp_get(struct led_classdev *cdev);
184 static void logolamp_set(struct led_classdev *cdev,
185 enum led_brightness brightness);
187 static struct led_classdev logolamp_led = {
188 .name = "fujitsu::logolamp",
189 .brightness_get = logolamp_get,
190 .brightness_set = logolamp_set
193 static enum led_brightness kblamps_get(struct led_classdev *cdev);
194 static void kblamps_set(struct led_classdev *cdev,
195 enum led_brightness brightness);
197 static struct led_classdev kblamps_led = {
198 .name = "fujitsu::kblamps",
199 .brightness_get = kblamps_get,
200 .brightness_set = kblamps_set
204 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
205 static u32 dbg_level = 0x03;
208 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event);
210 /* Fujitsu ACPI interface function */
212 static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
214 acpi_status status = AE_OK;
215 union acpi_object params[4] = {
216 { .type = ACPI_TYPE_INTEGER },
217 { .type = ACPI_TYPE_INTEGER },
218 { .type = ACPI_TYPE_INTEGER },
219 { .type = ACPI_TYPE_INTEGER }
221 struct acpi_object_list arg_list = { 4, ¶ms[0] };
222 unsigned long long value;
223 acpi_handle handle = NULL;
225 status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle);
226 if (ACPI_FAILURE(status)) {
227 vdbg_printk(FUJLAPTOP_DBG_ERROR,
228 "FUNC interface is not present\n");
232 params[0].integer.value = cmd;
233 params[1].integer.value = arg0;
234 params[2].integer.value = arg1;
235 params[3].integer.value = arg2;
237 status = acpi_evaluate_integer(handle, NULL, &arg_list, &value);
238 if (ACPI_FAILURE(status)) {
239 vdbg_printk(FUJLAPTOP_DBG_WARN,
240 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
241 cmd, arg0, arg1, arg2);
245 vdbg_printk(FUJLAPTOP_DBG_TRACE,
246 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
247 cmd, arg0, arg1, arg2, (int)value);
251 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
252 /* LED class callbacks */
254 static void logolamp_set(struct led_classdev *cdev,
255 enum led_brightness brightness)
257 if (brightness >= LED_FULL) {
258 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
259 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON);
260 } else if (brightness >= LED_HALF) {
261 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
262 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF);
264 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF);
268 static void kblamps_set(struct led_classdev *cdev,
269 enum led_brightness brightness)
271 if (brightness >= LED_FULL)
272 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
274 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
277 static enum led_brightness logolamp_get(struct led_classdev *cdev)
279 enum led_brightness brightness = LED_OFF;
282 poweron = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0);
283 if (poweron == FUNC_LED_ON) {
284 brightness = LED_HALF;
285 always = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0);
286 if (always == FUNC_LED_ON)
287 brightness = LED_FULL;
292 static enum led_brightness kblamps_get(struct led_classdev *cdev)
294 enum led_brightness brightness = LED_OFF;
296 if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON)
297 brightness = LED_FULL;
303 /* Hardware access for LCD brightness control */
305 static int set_lcd_level(int level)
307 acpi_status status = AE_OK;
308 acpi_handle handle = NULL;
310 vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n",
313 if (level < 0 || level >= fujitsu->max_brightness)
316 status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle);
317 if (ACPI_FAILURE(status)) {
318 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n");
323 status = acpi_execute_simple_method(handle, NULL, level);
324 if (ACPI_FAILURE(status))
330 static int set_lcd_level_alt(int level)
332 acpi_status status = AE_OK;
333 acpi_handle handle = NULL;
335 vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n",
338 if (level < 0 || level >= fujitsu->max_brightness)
341 status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle);
342 if (ACPI_FAILURE(status)) {
343 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n");
347 status = acpi_execute_simple_method(handle, NULL, level);
348 if (ACPI_FAILURE(status))
354 static int get_lcd_level(void)
356 unsigned long long state = 0;
357 acpi_status status = AE_OK;
359 vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n");
362 acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
363 if (ACPI_FAILURE(status))
366 fujitsu->brightness_level = state & 0x0fffffff;
368 if (state & 0x80000000)
369 fujitsu->brightness_changed = 1;
371 fujitsu->brightness_changed = 0;
373 return fujitsu->brightness_level;
376 static int get_max_brightness(void)
378 unsigned long long state = 0;
379 acpi_status status = AE_OK;
381 vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n");
384 acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state);
385 if (ACPI_FAILURE(status))
388 fujitsu->max_brightness = state;
390 return fujitsu->max_brightness;
393 /* Backlight device stuff */
395 static int bl_get_brightness(struct backlight_device *b)
397 return get_lcd_level();
400 static int bl_update_status(struct backlight_device *b)
403 if (b->props.power == FB_BLANK_POWERDOWN)
404 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
406 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
408 vdbg_printk(FUJLAPTOP_DBG_ERROR,
409 "Unable to adjust backlight power, error code %i\n",
412 if (use_alt_lcd_levels)
413 ret = set_lcd_level_alt(b->props.brightness);
415 ret = set_lcd_level(b->props.brightness);
417 vdbg_printk(FUJLAPTOP_DBG_ERROR,
418 "Unable to adjust LCD brightness, error code %i\n",
423 static const struct backlight_ops fujitsubl_ops = {
424 .get_brightness = bl_get_brightness,
425 .update_status = bl_update_status,
428 /* Platform LCD brightness device */
431 show_max_brightness(struct device *dev,
432 struct device_attribute *attr, char *buf)
437 ret = get_max_brightness();
441 return sprintf(buf, "%i\n", ret);
445 show_brightness_changed(struct device *dev,
446 struct device_attribute *attr, char *buf)
451 ret = fujitsu->brightness_changed;
455 return sprintf(buf, "%i\n", ret);
458 static ssize_t show_lcd_level(struct device *dev,
459 struct device_attribute *attr, char *buf)
464 ret = get_lcd_level();
468 return sprintf(buf, "%i\n", ret);
471 static ssize_t store_lcd_level(struct device *dev,
472 struct device_attribute *attr, const char *buf,
478 if (sscanf(buf, "%i", &level) != 1
479 || (level < 0 || level >= fujitsu->max_brightness))
482 if (use_alt_lcd_levels)
483 ret = set_lcd_level_alt(level);
485 ret = set_lcd_level(level);
489 ret = get_lcd_level();
497 ignore_store(struct device *dev,
498 struct device_attribute *attr, const char *buf, size_t count)
504 show_lid_state(struct device *dev,
505 struct device_attribute *attr, char *buf)
507 if (!(fujitsu_hotkey->rfkill_supported & 0x100))
508 return sprintf(buf, "unknown\n");
509 if (fujitsu_hotkey->rfkill_state & 0x100)
510 return sprintf(buf, "open\n");
512 return sprintf(buf, "closed\n");
516 show_dock_state(struct device *dev,
517 struct device_attribute *attr, char *buf)
519 if (!(fujitsu_hotkey->rfkill_supported & 0x200))
520 return sprintf(buf, "unknown\n");
521 if (fujitsu_hotkey->rfkill_state & 0x200)
522 return sprintf(buf, "docked\n");
524 return sprintf(buf, "undocked\n");
528 show_radios_state(struct device *dev,
529 struct device_attribute *attr, char *buf)
531 if (!(fujitsu_hotkey->rfkill_supported & 0x20))
532 return sprintf(buf, "unknown\n");
533 if (fujitsu_hotkey->rfkill_state & 0x20)
534 return sprintf(buf, "on\n");
536 return sprintf(buf, "killed\n");
539 static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store);
540 static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed,
542 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
543 static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store);
544 static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store);
545 static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store);
547 static struct attribute *fujitsupf_attributes[] = {
548 &dev_attr_brightness_changed.attr,
549 &dev_attr_max_brightness.attr,
550 &dev_attr_lcd_level.attr,
553 &dev_attr_radios.attr,
557 static struct attribute_group fujitsupf_attribute_group = {
558 .attrs = fujitsupf_attributes
561 static struct platform_driver fujitsupf_driver = {
563 .name = "fujitsu-laptop",
567 static void __init dmi_check_cb_common(const struct dmi_system_id *id)
569 pr_info("Identified laptop model '%s'\n", id->ident);
570 if (use_alt_lcd_levels == -1) {
571 if (acpi_has_method(NULL,
572 "\\_SB.PCI0.LPCB.FJEX.SBL2"))
573 use_alt_lcd_levels = 1;
575 use_alt_lcd_levels = 0;
576 vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as "
577 "%i\n", use_alt_lcd_levels);
581 static int __init dmi_check_cb_s6410(const struct dmi_system_id *id)
583 dmi_check_cb_common(id);
584 fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */
585 fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */
589 static int __init dmi_check_cb_s6420(const struct dmi_system_id *id)
591 dmi_check_cb_common(id);
592 fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */
593 fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */
597 static int __init dmi_check_cb_p8010(const struct dmi_system_id *id)
599 dmi_check_cb_common(id);
600 fujitsu->keycode1 = KEY_HELP; /* "Support" */
601 fujitsu->keycode3 = KEY_SWITCHVIDEOMODE; /* "Presentation" */
602 fujitsu->keycode4 = KEY_WWW; /* "Internet" */
606 static const struct dmi_system_id fujitsu_dmi_table[] __initconst = {
608 .ident = "Fujitsu Siemens S6410",
610 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
611 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"),
613 .callback = dmi_check_cb_s6410},
615 .ident = "Fujitsu Siemens S6420",
617 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
618 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"),
620 .callback = dmi_check_cb_s6420},
622 .ident = "Fujitsu LifeBook P8010",
624 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
625 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"),
627 .callback = dmi_check_cb_p8010},
631 /* ACPI device for LCD brightness control */
633 static int acpi_fujitsu_add(struct acpi_device *device)
636 struct input_dev *input;
642 fujitsu->acpi_handle = device->handle;
643 sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME);
644 sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
645 device->driver_data = fujitsu;
647 fujitsu->input = input = input_allocate_device();
653 snprintf(fujitsu->phys, sizeof(fujitsu->phys),
654 "%s/video/input0", acpi_device_hid(device));
656 input->name = acpi_device_name(device);
657 input->phys = fujitsu->phys;
658 input->id.bustype = BUS_HOST;
659 input->id.product = 0x06;
660 input->dev.parent = &device->dev;
661 input->evbit[0] = BIT(EV_KEY);
662 set_bit(KEY_BRIGHTNESSUP, input->keybit);
663 set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
664 set_bit(KEY_UNKNOWN, input->keybit);
666 error = input_register_device(input);
668 goto err_free_input_dev;
670 error = acpi_bus_update_power(fujitsu->acpi_handle, &state);
672 pr_err("Error reading power state\n");
673 goto err_unregister_input_dev;
676 pr_info("ACPI: %s [%s] (%s)\n",
677 acpi_device_name(device), acpi_device_bid(device),
678 !device->power.state ? "on" : "off");
680 fujitsu->dev = device;
682 if (acpi_has_method(device->handle, METHOD_NAME__INI)) {
683 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
685 (acpi_evaluate_object
686 (device->handle, METHOD_NAME__INI, NULL, NULL)))
687 pr_err("_INI Method failed\n");
690 /* do config (detect defaults) */
691 use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
692 disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
693 vdbg_printk(FUJLAPTOP_DBG_INFO,
694 "config: [alt interface: %d], [adjust disable: %d]\n",
695 use_alt_lcd_levels, disable_brightness_adjust);
697 if (get_max_brightness() <= 0)
698 fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS;
703 err_unregister_input_dev:
704 input_unregister_device(input);
707 input_free_device(input);
712 static int acpi_fujitsu_remove(struct acpi_device *device)
714 struct fujitsu_t *fujitsu = acpi_driver_data(device);
715 struct input_dev *input = fujitsu->input;
717 input_unregister_device(input);
719 fujitsu->acpi_handle = NULL;
724 /* Brightness notify */
726 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
728 struct input_dev *input;
732 input = fujitsu->input;
735 case ACPI_FUJITSU_NOTIFY_CODE1:
737 oldb = fujitsu->brightness_level;
739 newb = fujitsu->brightness_level;
741 vdbg_printk(FUJLAPTOP_DBG_TRACE,
742 "brightness button event [%i -> %i (%i)]\n",
743 oldb, newb, fujitsu->brightness_changed);
746 if (disable_brightness_adjust != 1) {
747 if (use_alt_lcd_levels)
748 set_lcd_level_alt(newb);
752 keycode = KEY_BRIGHTNESSUP;
753 } else if (oldb > newb) {
754 if (disable_brightness_adjust != 1) {
755 if (use_alt_lcd_levels)
756 set_lcd_level_alt(newb);
760 keycode = KEY_BRIGHTNESSDOWN;
764 keycode = KEY_UNKNOWN;
765 vdbg_printk(FUJLAPTOP_DBG_WARN,
766 "unsupported event [0x%x]\n", event);
771 input_report_key(input, keycode, 1);
773 input_report_key(input, keycode, 0);
778 /* ACPI device for hotkey handling */
780 static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
784 struct input_dev *input;
791 fujitsu_hotkey->acpi_handle = device->handle;
792 sprintf(acpi_device_name(device), "%s",
793 ACPI_FUJITSU_HOTKEY_DEVICE_NAME);
794 sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
795 device->driver_data = fujitsu_hotkey;
798 spin_lock_init(&fujitsu_hotkey->fifo_lock);
799 error = kfifo_alloc(&fujitsu_hotkey->fifo, RINGBUFFERSIZE * sizeof(int),
802 pr_err("kfifo_alloc failed\n");
806 fujitsu_hotkey->input = input = input_allocate_device();
812 snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys),
813 "%s/video/input0", acpi_device_hid(device));
815 input->name = acpi_device_name(device);
816 input->phys = fujitsu_hotkey->phys;
817 input->id.bustype = BUS_HOST;
818 input->id.product = 0x06;
819 input->dev.parent = &device->dev;
821 set_bit(EV_KEY, input->evbit);
822 set_bit(fujitsu->keycode1, input->keybit);
823 set_bit(fujitsu->keycode2, input->keybit);
824 set_bit(fujitsu->keycode3, input->keybit);
825 set_bit(fujitsu->keycode4, input->keybit);
826 set_bit(KEY_UNKNOWN, input->keybit);
828 error = input_register_device(input);
830 goto err_free_input_dev;
832 error = acpi_bus_update_power(fujitsu_hotkey->acpi_handle, &state);
834 pr_err("Error reading power state\n");
835 goto err_unregister_input_dev;
838 pr_info("ACPI: %s [%s] (%s)\n",
839 acpi_device_name(device), acpi_device_bid(device),
840 !device->power.state ? "on" : "off");
842 fujitsu_hotkey->dev = device;
844 if (acpi_has_method(device->handle, METHOD_NAME__INI)) {
845 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
847 (acpi_evaluate_object
848 (device->handle, METHOD_NAME__INI, NULL, NULL)))
849 pr_err("_INI Method failed\n");
853 while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0
854 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE)
855 ; /* No action, result is discarded */
856 vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i);
858 fujitsu_hotkey->rfkill_supported =
859 call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0);
861 /* Make sure our bitmask of supported functions is cleared if the
862 RFKILL function block is not implemented, like on the S7020. */
863 if (fujitsu_hotkey->rfkill_supported == UNSUPPORTED_CMD)
864 fujitsu_hotkey->rfkill_supported = 0;
866 if (fujitsu_hotkey->rfkill_supported)
867 fujitsu_hotkey->rfkill_state =
868 call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
870 /* Suspect this is a keymap of the application panel, print it */
871 pr_info("BTNI: [0x%x]\n", call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
873 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
874 if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
875 result = led_classdev_register(&fujitsu->pf_device->dev,
878 fujitsu_hotkey->logolamp_registered = 1;
880 pr_err("Could not register LED handler for logo lamp, error %i\n",
885 if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
886 (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
887 result = led_classdev_register(&fujitsu->pf_device->dev,
890 fujitsu_hotkey->kblamps_registered = 1;
892 pr_err("Could not register LED handler for keyboard lamps, error %i\n",
900 err_unregister_input_dev:
901 input_unregister_device(input);
904 input_free_device(input);
906 kfifo_free(&fujitsu_hotkey->fifo);
911 static int acpi_fujitsu_hotkey_remove(struct acpi_device *device)
913 struct fujitsu_hotkey_t *fujitsu_hotkey = acpi_driver_data(device);
914 struct input_dev *input = fujitsu_hotkey->input;
916 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
917 if (fujitsu_hotkey->logolamp_registered)
918 led_classdev_unregister(&logolamp_led);
920 if (fujitsu_hotkey->kblamps_registered)
921 led_classdev_unregister(&kblamps_led);
924 input_unregister_device(input);
926 kfifo_free(&fujitsu_hotkey->fifo);
928 fujitsu_hotkey->acpi_handle = NULL;
933 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event)
935 struct input_dev *input;
936 int keycode, keycode_r;
937 unsigned int irb = 1;
940 input = fujitsu_hotkey->input;
942 if (fujitsu_hotkey->rfkill_supported)
943 fujitsu_hotkey->rfkill_state =
944 call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
947 case ACPI_FUJITSU_NOTIFY_CODE1:
950 call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0
951 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
952 switch (irb & 0x4ff) {
954 keycode = fujitsu->keycode1;
957 keycode = fujitsu->keycode2;
960 keycode = fujitsu->keycode3;
963 keycode = fujitsu->keycode4;
969 vdbg_printk(FUJLAPTOP_DBG_WARN,
970 "Unknown GIRB result [%x]\n", irb);
975 vdbg_printk(FUJLAPTOP_DBG_TRACE,
976 "Push keycode into ringbuffer [%d]\n",
978 status = kfifo_in_locked(&fujitsu_hotkey->fifo,
979 (unsigned char *)&keycode,
981 &fujitsu_hotkey->fifo_lock);
982 if (status != sizeof(keycode)) {
983 vdbg_printk(FUJLAPTOP_DBG_WARN,
984 "Could not push keycode [0x%x]\n",
987 input_report_key(input, keycode, 1);
990 } else if (keycode == 0) {
993 &fujitsu_hotkey->fifo,
994 (unsigned char *) &keycode_r,
996 &fujitsu_hotkey->fifo_lock))
997 == sizeof(keycode_r)) {
998 input_report_key(input, keycode_r, 0);
1000 vdbg_printk(FUJLAPTOP_DBG_TRACE,
1001 "Pop keycode from ringbuffer [%d]\n",
1009 keycode = KEY_UNKNOWN;
1010 vdbg_printk(FUJLAPTOP_DBG_WARN,
1011 "Unsupported event [0x%x]\n", event);
1012 input_report_key(input, keycode, 1);
1014 input_report_key(input, keycode, 0);
1020 /* Initialization */
1022 static const struct acpi_device_id fujitsu_device_ids[] = {
1023 {ACPI_FUJITSU_HID, 0},
1027 static struct acpi_driver acpi_fujitsu_driver = {
1028 .name = ACPI_FUJITSU_DRIVER_NAME,
1029 .class = ACPI_FUJITSU_CLASS,
1030 .ids = fujitsu_device_ids,
1032 .add = acpi_fujitsu_add,
1033 .remove = acpi_fujitsu_remove,
1034 .notify = acpi_fujitsu_notify,
1038 static const struct acpi_device_id fujitsu_hotkey_device_ids[] = {
1039 {ACPI_FUJITSU_HOTKEY_HID, 0},
1043 static struct acpi_driver acpi_fujitsu_hotkey_driver = {
1044 .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME,
1045 .class = ACPI_FUJITSU_CLASS,
1046 .ids = fujitsu_hotkey_device_ids,
1048 .add = acpi_fujitsu_hotkey_add,
1049 .remove = acpi_fujitsu_hotkey_remove,
1050 .notify = acpi_fujitsu_hotkey_notify,
1054 static const struct acpi_device_id fujitsu_ids[] __used = {
1055 {ACPI_FUJITSU_HID, 0},
1056 {ACPI_FUJITSU_HOTKEY_HID, 0},
1059 MODULE_DEVICE_TABLE(acpi, fujitsu_ids);
1061 static int __init fujitsu_init(void)
1063 int ret, result, max_brightness;
1068 fujitsu = kzalloc(sizeof(struct fujitsu_t), GFP_KERNEL);
1071 fujitsu->keycode1 = KEY_PROG1;
1072 fujitsu->keycode2 = KEY_PROG2;
1073 fujitsu->keycode3 = KEY_PROG3;
1074 fujitsu->keycode4 = KEY_PROG4;
1075 dmi_check_system(fujitsu_dmi_table);
1077 result = acpi_bus_register_driver(&acpi_fujitsu_driver);
1083 /* Register platform stuff */
1085 fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1);
1086 if (!fujitsu->pf_device) {
1088 goto fail_platform_driver;
1091 ret = platform_device_add(fujitsu->pf_device);
1093 goto fail_platform_device1;
1096 sysfs_create_group(&fujitsu->pf_device->dev.kobj,
1097 &fujitsupf_attribute_group);
1099 goto fail_platform_device2;
1101 /* Register backlight stuff */
1103 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1104 struct backlight_properties props;
1106 memset(&props, 0, sizeof(struct backlight_properties));
1107 max_brightness = fujitsu->max_brightness;
1108 props.type = BACKLIGHT_PLATFORM;
1109 props.max_brightness = max_brightness - 1;
1110 fujitsu->bl_device = backlight_device_register("fujitsu-laptop",
1114 if (IS_ERR(fujitsu->bl_device)) {
1115 ret = PTR_ERR(fujitsu->bl_device);
1116 fujitsu->bl_device = NULL;
1117 goto fail_sysfs_group;
1119 fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
1122 ret = platform_driver_register(&fujitsupf_driver);
1124 goto fail_backlight;
1126 /* Register hotkey driver */
1128 fujitsu_hotkey = kzalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL);
1129 if (!fujitsu_hotkey) {
1134 result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver);
1140 /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
1141 if (acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1142 if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3)
1143 fujitsu->bl_device->props.power = FB_BLANK_POWERDOWN;
1145 fujitsu->bl_device->props.power = FB_BLANK_UNBLANK;
1148 pr_info("driver " FUJITSU_DRIVER_VERSION " successfully loaded\n");
1153 kfree(fujitsu_hotkey);
1155 platform_driver_unregister(&fujitsupf_driver);
1157 backlight_device_unregister(fujitsu->bl_device);
1159 sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1160 &fujitsupf_attribute_group);
1161 fail_platform_device2:
1162 platform_device_del(fujitsu->pf_device);
1163 fail_platform_device1:
1164 platform_device_put(fujitsu->pf_device);
1165 fail_platform_driver:
1166 acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1173 static void __exit fujitsu_cleanup(void)
1175 acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver);
1177 kfree(fujitsu_hotkey);
1179 platform_driver_unregister(&fujitsupf_driver);
1181 backlight_device_unregister(fujitsu->bl_device);
1183 sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1184 &fujitsupf_attribute_group);
1186 platform_device_unregister(fujitsu->pf_device);
1188 acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1192 pr_info("driver unloaded\n");
1195 module_init(fujitsu_init);
1196 module_exit(fujitsu_cleanup);
1198 module_param(use_alt_lcd_levels, uint, 0644);
1199 MODULE_PARM_DESC(use_alt_lcd_levels,
1200 "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
1201 module_param(disable_brightness_adjust, uint, 0644);
1202 MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment .");
1203 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
1204 module_param_named(debug, dbg_level, uint, 0644);
1205 MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
1208 MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
1209 MODULE_DESCRIPTION("Fujitsu laptop extras support");
1210 MODULE_VERSION(FUJITSU_DRIVER_VERSION);
1211 MODULE_LICENSE("GPL");
1213 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
1214 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
1215 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");