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>
67 #include <linux/input.h>
68 #include <linux/kfifo.h>
69 #include <linux/platform_device.h>
70 #include <linux/slab.h>
71 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
72 #include <linux/leds.h>
75 #define FUJITSU_DRIVER_VERSION "0.6.0"
77 #define FUJITSU_LCD_N_LEVELS 8
79 #define ACPI_FUJITSU_CLASS "fujitsu"
80 #define ACPI_FUJITSU_HID "FUJ02B1"
81 #define ACPI_FUJITSU_DRIVER_NAME "Fujitsu laptop FUJ02B1 ACPI brightness driver"
82 #define ACPI_FUJITSU_DEVICE_NAME "Fujitsu FUJ02B1"
83 #define ACPI_FUJITSU_HOTKEY_HID "FUJ02E3"
84 #define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver"
85 #define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3"
87 #define ACPI_FUJITSU_NOTIFY_CODE1 0x80
89 #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86
90 #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87
92 /* FUNC interface - command values */
93 #define FUNC_RFKILL 0x1000
94 #define FUNC_LEDS 0x1001
95 #define FUNC_BUTTONS 0x1002
96 #define FUNC_BACKLIGHT 0x1004
98 /* FUNC interface - responses */
99 #define UNSUPPORTED_CMD 0x80000000
101 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
102 /* FUNC interface - LED control */
103 #define FUNC_LED_OFF 0x1
104 #define FUNC_LED_ON 0x30001
105 #define KEYBOARD_LAMPS 0x100
106 #define LOGOLAMP_POWERON 0x2000
107 #define LOGOLAMP_ALWAYS 0x4000
111 #define KEY1_CODE 0x410 /* codes for the keys in the GIRB register */
112 #define KEY2_CODE 0x411
113 #define KEY3_CODE 0x412
114 #define KEY4_CODE 0x413
116 #define MAX_HOTKEY_RINGBUFFER_SIZE 100
117 #define RINGBUFFERSIZE 40
120 #define FUJLAPTOP_LOG ACPI_FUJITSU_HID ": "
121 #define FUJLAPTOP_ERR KERN_ERR FUJLAPTOP_LOG
122 #define FUJLAPTOP_NOTICE KERN_NOTICE FUJLAPTOP_LOG
123 #define FUJLAPTOP_INFO KERN_INFO FUJLAPTOP_LOG
124 #define FUJLAPTOP_DEBUG KERN_DEBUG FUJLAPTOP_LOG
126 #define FUJLAPTOP_DBG_ALL 0xffff
127 #define FUJLAPTOP_DBG_ERROR 0x0001
128 #define FUJLAPTOP_DBG_WARN 0x0002
129 #define FUJLAPTOP_DBG_INFO 0x0004
130 #define FUJLAPTOP_DBG_TRACE 0x0008
132 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
133 #define vdbg_printk(a_dbg_level, format, arg...) \
134 do { if (dbg_level & a_dbg_level) \
135 printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \
138 #define vdbg_printk(a_dbg_level, format, arg...) \
142 /* Device controlling the backlight and associated keys */
144 acpi_handle acpi_handle
;
145 struct acpi_device
*dev
;
146 struct input_dev
*input
;
148 struct backlight_device
*bl_device
;
149 struct platform_device
*pf_device
;
150 int keycode1
, keycode2
, keycode3
, keycode4
;
152 unsigned int max_brightness
;
153 unsigned int brightness_changed
;
154 unsigned int brightness_level
;
157 static struct fujitsu_t
*fujitsu
;
158 static int use_alt_lcd_levels
= -1;
159 static int disable_brightness_adjust
= -1;
161 /* Device used to access other hotkeys on the laptop */
162 struct fujitsu_hotkey_t
{
163 acpi_handle acpi_handle
;
164 struct acpi_device
*dev
;
165 struct input_dev
*input
;
167 struct platform_device
*pf_device
;
169 spinlock_t fifo_lock
;
170 int rfkill_supported
;
172 int logolamp_registered
;
173 int kblamps_registered
;
176 static struct fujitsu_hotkey_t
*fujitsu_hotkey
;
178 static void acpi_fujitsu_hotkey_notify(struct acpi_device
*device
, u32 event
);
180 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
181 static enum led_brightness
logolamp_get(struct led_classdev
*cdev
);
182 static void logolamp_set(struct led_classdev
*cdev
,
183 enum led_brightness brightness
);
185 static struct led_classdev logolamp_led
= {
186 .name
= "fujitsu::logolamp",
187 .brightness_get
= logolamp_get
,
188 .brightness_set
= logolamp_set
191 static enum led_brightness
kblamps_get(struct led_classdev
*cdev
);
192 static void kblamps_set(struct led_classdev
*cdev
,
193 enum led_brightness brightness
);
195 static struct led_classdev kblamps_led
= {
196 .name
= "fujitsu::kblamps",
197 .brightness_get
= kblamps_get
,
198 .brightness_set
= kblamps_set
202 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
203 static u32 dbg_level
= 0x03;
206 static void acpi_fujitsu_notify(struct acpi_device
*device
, u32 event
);
208 /* Fujitsu ACPI interface function */
210 static int call_fext_func(int cmd
, int arg0
, int arg1
, int arg2
)
212 acpi_status status
= AE_OK
;
213 union acpi_object params
[4] = {
214 { .type
= ACPI_TYPE_INTEGER
},
215 { .type
= ACPI_TYPE_INTEGER
},
216 { .type
= ACPI_TYPE_INTEGER
},
217 { .type
= ACPI_TYPE_INTEGER
}
219 struct acpi_object_list arg_list
= { 4, ¶ms
[0] };
220 unsigned long long value
;
221 acpi_handle handle
= NULL
;
223 status
= acpi_get_handle(fujitsu_hotkey
->acpi_handle
, "FUNC", &handle
);
224 if (ACPI_FAILURE(status
)) {
225 vdbg_printk(FUJLAPTOP_DBG_ERROR
,
226 "FUNC interface is not present\n");
230 params
[0].integer
.value
= cmd
;
231 params
[1].integer
.value
= arg0
;
232 params
[2].integer
.value
= arg1
;
233 params
[3].integer
.value
= arg2
;
235 status
= acpi_evaluate_integer(handle
, NULL
, &arg_list
, &value
);
236 if (ACPI_FAILURE(status
)) {
237 vdbg_printk(FUJLAPTOP_DBG_WARN
,
238 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
239 cmd
, arg0
, arg1
, arg2
);
243 vdbg_printk(FUJLAPTOP_DBG_TRACE
,
244 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
245 cmd
, arg0
, arg1
, arg2
, (int)value
);
249 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
250 /* LED class callbacks */
252 static void logolamp_set(struct led_classdev
*cdev
,
253 enum led_brightness brightness
)
255 if (brightness
>= LED_FULL
) {
256 call_fext_func(FUNC_LEDS
, 0x1, LOGOLAMP_POWERON
, FUNC_LED_ON
);
257 call_fext_func(FUNC_LEDS
, 0x1, LOGOLAMP_ALWAYS
, FUNC_LED_ON
);
258 } else if (brightness
>= LED_HALF
) {
259 call_fext_func(FUNC_LEDS
, 0x1, LOGOLAMP_POWERON
, FUNC_LED_ON
);
260 call_fext_func(FUNC_LEDS
, 0x1, LOGOLAMP_ALWAYS
, FUNC_LED_OFF
);
262 call_fext_func(FUNC_LEDS
, 0x1, LOGOLAMP_POWERON
, FUNC_LED_OFF
);
266 static void kblamps_set(struct led_classdev
*cdev
,
267 enum led_brightness brightness
)
269 if (brightness
>= LED_FULL
)
270 call_fext_func(FUNC_LEDS
, 0x1, KEYBOARD_LAMPS
, FUNC_LED_ON
);
272 call_fext_func(FUNC_LEDS
, 0x1, KEYBOARD_LAMPS
, FUNC_LED_OFF
);
275 static enum led_brightness
logolamp_get(struct led_classdev
*cdev
)
277 enum led_brightness brightness
= LED_OFF
;
280 poweron
= call_fext_func(FUNC_LEDS
, 0x2, LOGOLAMP_POWERON
, 0x0);
281 if (poweron
== FUNC_LED_ON
) {
282 brightness
= LED_HALF
;
283 always
= call_fext_func(FUNC_LEDS
, 0x2, LOGOLAMP_ALWAYS
, 0x0);
284 if (always
== FUNC_LED_ON
)
285 brightness
= LED_FULL
;
290 static enum led_brightness
kblamps_get(struct led_classdev
*cdev
)
292 enum led_brightness brightness
= LED_OFF
;
294 if (call_fext_func(FUNC_LEDS
, 0x2, KEYBOARD_LAMPS
, 0x0) == FUNC_LED_ON
)
295 brightness
= LED_FULL
;
301 /* Hardware access for LCD brightness control */
303 static int set_lcd_level(int level
)
305 acpi_status status
= AE_OK
;
306 acpi_handle handle
= NULL
;
308 vdbg_printk(FUJLAPTOP_DBG_TRACE
, "set lcd level via SBLL [%d]\n",
311 if (level
< 0 || level
>= fujitsu
->max_brightness
)
314 status
= acpi_get_handle(fujitsu
->acpi_handle
, "SBLL", &handle
);
315 if (ACPI_FAILURE(status
)) {
316 vdbg_printk(FUJLAPTOP_DBG_ERROR
, "SBLL not present\n");
321 status
= acpi_execute_simple_method(handle
, NULL
, level
);
322 if (ACPI_FAILURE(status
))
328 static int set_lcd_level_alt(int level
)
330 acpi_status status
= AE_OK
;
331 acpi_handle handle
= NULL
;
333 vdbg_printk(FUJLAPTOP_DBG_TRACE
, "set lcd level via SBL2 [%d]\n",
336 if (level
< 0 || level
>= fujitsu
->max_brightness
)
339 status
= acpi_get_handle(fujitsu
->acpi_handle
, "SBL2", &handle
);
340 if (ACPI_FAILURE(status
)) {
341 vdbg_printk(FUJLAPTOP_DBG_ERROR
, "SBL2 not present\n");
345 status
= acpi_execute_simple_method(handle
, NULL
, level
);
346 if (ACPI_FAILURE(status
))
352 static int get_lcd_level(void)
354 unsigned long long state
= 0;
355 acpi_status status
= AE_OK
;
357 vdbg_printk(FUJLAPTOP_DBG_TRACE
, "get lcd level via GBLL\n");
360 acpi_evaluate_integer(fujitsu
->acpi_handle
, "GBLL", NULL
, &state
);
361 if (ACPI_FAILURE(status
))
364 fujitsu
->brightness_level
= state
& 0x0fffffff;
366 if (state
& 0x80000000)
367 fujitsu
->brightness_changed
= 1;
369 fujitsu
->brightness_changed
= 0;
371 return fujitsu
->brightness_level
;
374 static int get_max_brightness(void)
376 unsigned long long state
= 0;
377 acpi_status status
= AE_OK
;
379 vdbg_printk(FUJLAPTOP_DBG_TRACE
, "get max lcd level via RBLL\n");
382 acpi_evaluate_integer(fujitsu
->acpi_handle
, "RBLL", NULL
, &state
);
383 if (ACPI_FAILURE(status
))
386 fujitsu
->max_brightness
= state
;
388 return fujitsu
->max_brightness
;
391 /* Backlight device stuff */
393 static int bl_get_brightness(struct backlight_device
*b
)
395 return get_lcd_level();
398 static int bl_update_status(struct backlight_device
*b
)
401 if (b
->props
.power
== 4)
402 ret
= call_fext_func(FUNC_BACKLIGHT
, 0x1, 0x4, 0x3);
404 ret
= call_fext_func(FUNC_BACKLIGHT
, 0x1, 0x4, 0x0);
406 vdbg_printk(FUJLAPTOP_DBG_ERROR
,
407 "Unable to adjust backlight power, error code %i\n",
410 if (use_alt_lcd_levels
)
411 ret
= set_lcd_level_alt(b
->props
.brightness
);
413 ret
= set_lcd_level(b
->props
.brightness
);
415 vdbg_printk(FUJLAPTOP_DBG_ERROR
,
416 "Unable to adjust LCD brightness, error code %i\n",
421 static const struct backlight_ops fujitsubl_ops
= {
422 .get_brightness
= bl_get_brightness
,
423 .update_status
= bl_update_status
,
426 /* Platform LCD brightness device */
429 show_max_brightness(struct device
*dev
,
430 struct device_attribute
*attr
, char *buf
)
435 ret
= get_max_brightness();
439 return sprintf(buf
, "%i\n", ret
);
443 show_brightness_changed(struct device
*dev
,
444 struct device_attribute
*attr
, char *buf
)
449 ret
= fujitsu
->brightness_changed
;
453 return sprintf(buf
, "%i\n", ret
);
456 static ssize_t
show_lcd_level(struct device
*dev
,
457 struct device_attribute
*attr
, char *buf
)
462 ret
= get_lcd_level();
466 return sprintf(buf
, "%i\n", ret
);
469 static ssize_t
store_lcd_level(struct device
*dev
,
470 struct device_attribute
*attr
, const char *buf
,
476 if (sscanf(buf
, "%i", &level
) != 1
477 || (level
< 0 || level
>= fujitsu
->max_brightness
))
480 if (use_alt_lcd_levels
)
481 ret
= set_lcd_level_alt(level
);
483 ret
= set_lcd_level(level
);
487 ret
= get_lcd_level();
495 ignore_store(struct device
*dev
,
496 struct device_attribute
*attr
, const char *buf
, size_t count
)
502 show_lid_state(struct device
*dev
,
503 struct device_attribute
*attr
, char *buf
)
505 if (!(fujitsu_hotkey
->rfkill_supported
& 0x100))
506 return sprintf(buf
, "unknown\n");
507 if (fujitsu_hotkey
->rfkill_state
& 0x100)
508 return sprintf(buf
, "open\n");
510 return sprintf(buf
, "closed\n");
514 show_dock_state(struct device
*dev
,
515 struct device_attribute
*attr
, char *buf
)
517 if (!(fujitsu_hotkey
->rfkill_supported
& 0x200))
518 return sprintf(buf
, "unknown\n");
519 if (fujitsu_hotkey
->rfkill_state
& 0x200)
520 return sprintf(buf
, "docked\n");
522 return sprintf(buf
, "undocked\n");
526 show_radios_state(struct device
*dev
,
527 struct device_attribute
*attr
, char *buf
)
529 if (!(fujitsu_hotkey
->rfkill_supported
& 0x20))
530 return sprintf(buf
, "unknown\n");
531 if (fujitsu_hotkey
->rfkill_state
& 0x20)
532 return sprintf(buf
, "on\n");
534 return sprintf(buf
, "killed\n");
537 static DEVICE_ATTR(max_brightness
, 0444, show_max_brightness
, ignore_store
);
538 static DEVICE_ATTR(brightness_changed
, 0444, show_brightness_changed
,
540 static DEVICE_ATTR(lcd_level
, 0644, show_lcd_level
, store_lcd_level
);
541 static DEVICE_ATTR(lid
, 0444, show_lid_state
, ignore_store
);
542 static DEVICE_ATTR(dock
, 0444, show_dock_state
, ignore_store
);
543 static DEVICE_ATTR(radios
, 0444, show_radios_state
, ignore_store
);
545 static struct attribute
*fujitsupf_attributes
[] = {
546 &dev_attr_brightness_changed
.attr
,
547 &dev_attr_max_brightness
.attr
,
548 &dev_attr_lcd_level
.attr
,
551 &dev_attr_radios
.attr
,
555 static struct attribute_group fujitsupf_attribute_group
= {
556 .attrs
= fujitsupf_attributes
559 static struct platform_driver fujitsupf_driver
= {
561 .name
= "fujitsu-laptop",
562 .owner
= THIS_MODULE
,
566 static void __init
dmi_check_cb_common(const struct dmi_system_id
*id
)
568 pr_info("Identified laptop model '%s'\n", id
->ident
);
569 if (use_alt_lcd_levels
== -1) {
570 if (acpi_has_method(NULL
,
571 "\\_SB.PCI0.LPCB.FJEX.SBL2"))
572 use_alt_lcd_levels
= 1;
574 use_alt_lcd_levels
= 0;
575 vdbg_printk(FUJLAPTOP_DBG_TRACE
, "auto-detected usealt as "
576 "%i\n", use_alt_lcd_levels
);
580 static int __init
dmi_check_cb_s6410(const struct dmi_system_id
*id
)
582 dmi_check_cb_common(id
);
583 fujitsu
->keycode1
= KEY_SCREENLOCK
; /* "Lock" */
584 fujitsu
->keycode2
= KEY_HELP
; /* "Mobility Center" */
588 static int __init
dmi_check_cb_s6420(const struct dmi_system_id
*id
)
590 dmi_check_cb_common(id
);
591 fujitsu
->keycode1
= KEY_SCREENLOCK
; /* "Lock" */
592 fujitsu
->keycode2
= KEY_HELP
; /* "Mobility Center" */
596 static int __init
dmi_check_cb_p8010(const struct dmi_system_id
*id
)
598 dmi_check_cb_common(id
);
599 fujitsu
->keycode1
= KEY_HELP
; /* "Support" */
600 fujitsu
->keycode3
= KEY_SWITCHVIDEOMODE
; /* "Presentation" */
601 fujitsu
->keycode4
= KEY_WWW
; /* "Internet" */
605 static const struct dmi_system_id fujitsu_dmi_table
[] __initconst
= {
607 .ident
= "Fujitsu Siemens S6410",
609 DMI_MATCH(DMI_SYS_VENDOR
, "FUJITSU SIEMENS"),
610 DMI_MATCH(DMI_PRODUCT_NAME
, "LIFEBOOK S6410"),
612 .callback
= dmi_check_cb_s6410
},
614 .ident
= "Fujitsu Siemens S6420",
616 DMI_MATCH(DMI_SYS_VENDOR
, "FUJITSU SIEMENS"),
617 DMI_MATCH(DMI_PRODUCT_NAME
, "LIFEBOOK S6420"),
619 .callback
= dmi_check_cb_s6420
},
621 .ident
= "Fujitsu LifeBook P8010",
623 DMI_MATCH(DMI_SYS_VENDOR
, "FUJITSU"),
624 DMI_MATCH(DMI_PRODUCT_NAME
, "LifeBook P8010"),
626 .callback
= dmi_check_cb_p8010
},
630 /* ACPI device for LCD brightness control */
632 static int acpi_fujitsu_add(struct acpi_device
*device
)
635 struct input_dev
*input
;
641 fujitsu
->acpi_handle
= device
->handle
;
642 sprintf(acpi_device_name(device
), "%s", ACPI_FUJITSU_DEVICE_NAME
);
643 sprintf(acpi_device_class(device
), "%s", ACPI_FUJITSU_CLASS
);
644 device
->driver_data
= fujitsu
;
646 fujitsu
->input
= input
= input_allocate_device();
652 snprintf(fujitsu
->phys
, sizeof(fujitsu
->phys
),
653 "%s/video/input0", acpi_device_hid(device
));
655 input
->name
= acpi_device_name(device
);
656 input
->phys
= fujitsu
->phys
;
657 input
->id
.bustype
= BUS_HOST
;
658 input
->id
.product
= 0x06;
659 input
->dev
.parent
= &device
->dev
;
660 input
->evbit
[0] = BIT(EV_KEY
);
661 set_bit(KEY_BRIGHTNESSUP
, input
->keybit
);
662 set_bit(KEY_BRIGHTNESSDOWN
, input
->keybit
);
663 set_bit(KEY_UNKNOWN
, input
->keybit
);
665 error
= input_register_device(input
);
667 goto err_free_input_dev
;
669 error
= acpi_bus_update_power(fujitsu
->acpi_handle
, &state
);
671 pr_err("Error reading power state\n");
672 goto err_unregister_input_dev
;
675 pr_info("ACPI: %s [%s] (%s)\n",
676 acpi_device_name(device
), acpi_device_bid(device
),
677 !device
->power
.state
? "on" : "off");
679 fujitsu
->dev
= device
;
681 if (acpi_has_method(device
->handle
, METHOD_NAME__INI
)) {
682 vdbg_printk(FUJLAPTOP_DBG_INFO
, "Invoking _INI\n");
684 (acpi_evaluate_object
685 (device
->handle
, METHOD_NAME__INI
, NULL
, NULL
)))
686 pr_err("_INI Method failed\n");
689 /* do config (detect defaults) */
690 use_alt_lcd_levels
= use_alt_lcd_levels
== 1 ? 1 : 0;
691 disable_brightness_adjust
= disable_brightness_adjust
== 1 ? 1 : 0;
692 vdbg_printk(FUJLAPTOP_DBG_INFO
,
693 "config: [alt interface: %d], [adjust disable: %d]\n",
694 use_alt_lcd_levels
, disable_brightness_adjust
);
696 if (get_max_brightness() <= 0)
697 fujitsu
->max_brightness
= FUJITSU_LCD_N_LEVELS
;
702 err_unregister_input_dev
:
703 input_unregister_device(input
);
706 input_free_device(input
);
711 static int acpi_fujitsu_remove(struct acpi_device
*device
)
713 struct fujitsu_t
*fujitsu
= acpi_driver_data(device
);
714 struct input_dev
*input
= fujitsu
->input
;
716 input_unregister_device(input
);
718 fujitsu
->acpi_handle
= NULL
;
723 /* Brightness notify */
725 static void acpi_fujitsu_notify(struct acpi_device
*device
, u32 event
)
727 struct input_dev
*input
;
731 input
= fujitsu
->input
;
734 case ACPI_FUJITSU_NOTIFY_CODE1
:
736 oldb
= fujitsu
->brightness_level
;
738 newb
= fujitsu
->brightness_level
;
740 vdbg_printk(FUJLAPTOP_DBG_TRACE
,
741 "brightness button event [%i -> %i (%i)]\n",
742 oldb
, newb
, fujitsu
->brightness_changed
);
745 if (disable_brightness_adjust
!= 1) {
746 if (use_alt_lcd_levels
)
747 set_lcd_level_alt(newb
);
751 keycode
= KEY_BRIGHTNESSUP
;
752 } else if (oldb
> newb
) {
753 if (disable_brightness_adjust
!= 1) {
754 if (use_alt_lcd_levels
)
755 set_lcd_level_alt(newb
);
759 keycode
= KEY_BRIGHTNESSDOWN
;
763 keycode
= KEY_UNKNOWN
;
764 vdbg_printk(FUJLAPTOP_DBG_WARN
,
765 "unsupported event [0x%x]\n", event
);
770 input_report_key(input
, keycode
, 1);
772 input_report_key(input
, keycode
, 0);
777 /* ACPI device for hotkey handling */
779 static int acpi_fujitsu_hotkey_add(struct acpi_device
*device
)
783 struct input_dev
*input
;
790 fujitsu_hotkey
->acpi_handle
= device
->handle
;
791 sprintf(acpi_device_name(device
), "%s",
792 ACPI_FUJITSU_HOTKEY_DEVICE_NAME
);
793 sprintf(acpi_device_class(device
), "%s", ACPI_FUJITSU_CLASS
);
794 device
->driver_data
= fujitsu_hotkey
;
797 spin_lock_init(&fujitsu_hotkey
->fifo_lock
);
798 error
= kfifo_alloc(&fujitsu_hotkey
->fifo
, RINGBUFFERSIZE
* sizeof(int),
801 pr_err("kfifo_alloc failed\n");
805 fujitsu_hotkey
->input
= input
= input_allocate_device();
811 snprintf(fujitsu_hotkey
->phys
, sizeof(fujitsu_hotkey
->phys
),
812 "%s/video/input0", acpi_device_hid(device
));
814 input
->name
= acpi_device_name(device
);
815 input
->phys
= fujitsu_hotkey
->phys
;
816 input
->id
.bustype
= BUS_HOST
;
817 input
->id
.product
= 0x06;
818 input
->dev
.parent
= &device
->dev
;
820 set_bit(EV_KEY
, input
->evbit
);
821 set_bit(fujitsu
->keycode1
, input
->keybit
);
822 set_bit(fujitsu
->keycode2
, input
->keybit
);
823 set_bit(fujitsu
->keycode3
, input
->keybit
);
824 set_bit(fujitsu
->keycode4
, input
->keybit
);
825 set_bit(KEY_UNKNOWN
, input
->keybit
);
827 error
= input_register_device(input
);
829 goto err_free_input_dev
;
831 error
= acpi_bus_update_power(fujitsu_hotkey
->acpi_handle
, &state
);
833 pr_err("Error reading power state\n");
834 goto err_unregister_input_dev
;
837 pr_info("ACPI: %s [%s] (%s)\n",
838 acpi_device_name(device
), acpi_device_bid(device
),
839 !device
->power
.state
? "on" : "off");
841 fujitsu_hotkey
->dev
= device
;
843 if (acpi_has_method(device
->handle
, METHOD_NAME__INI
)) {
844 vdbg_printk(FUJLAPTOP_DBG_INFO
, "Invoking _INI\n");
846 (acpi_evaluate_object
847 (device
->handle
, METHOD_NAME__INI
, NULL
, NULL
)))
848 pr_err("_INI Method failed\n");
852 while (call_fext_func(FUNC_BUTTONS
, 0x1, 0x0, 0x0) != 0
853 && (i
++) < MAX_HOTKEY_RINGBUFFER_SIZE
)
854 ; /* No action, result is discarded */
855 vdbg_printk(FUJLAPTOP_DBG_INFO
, "Discarded %i ringbuffer entries\n", i
);
857 fujitsu_hotkey
->rfkill_supported
=
858 call_fext_func(FUNC_RFKILL
, 0x0, 0x0, 0x0);
860 /* Make sure our bitmask of supported functions is cleared if the
861 RFKILL function block is not implemented, like on the S7020. */
862 if (fujitsu_hotkey
->rfkill_supported
== UNSUPPORTED_CMD
)
863 fujitsu_hotkey
->rfkill_supported
= 0;
865 if (fujitsu_hotkey
->rfkill_supported
)
866 fujitsu_hotkey
->rfkill_state
=
867 call_fext_func(FUNC_RFKILL
, 0x4, 0x0, 0x0);
869 /* Suspect this is a keymap of the application panel, print it */
870 pr_info("BTNI: [0x%x]\n", call_fext_func(FUNC_BUTTONS
, 0x0, 0x0, 0x0));
872 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
873 if (call_fext_func(FUNC_LEDS
, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON
) {
874 result
= led_classdev_register(&fujitsu
->pf_device
->dev
,
877 fujitsu_hotkey
->logolamp_registered
= 1;
879 pr_err("Could not register LED handler for logo lamp, error %i\n",
884 if ((call_fext_func(FUNC_LEDS
, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS
) &&
885 (call_fext_func(FUNC_BUTTONS
, 0x0, 0x0, 0x0) == 0x0)) {
886 result
= led_classdev_register(&fujitsu
->pf_device
->dev
,
889 fujitsu_hotkey
->kblamps_registered
= 1;
891 pr_err("Could not register LED handler for keyboard lamps, error %i\n",
899 err_unregister_input_dev
:
900 input_unregister_device(input
);
903 input_free_device(input
);
905 kfifo_free(&fujitsu_hotkey
->fifo
);
910 static int acpi_fujitsu_hotkey_remove(struct acpi_device
*device
)
912 struct fujitsu_hotkey_t
*fujitsu_hotkey
= acpi_driver_data(device
);
913 struct input_dev
*input
= fujitsu_hotkey
->input
;
915 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
916 if (fujitsu_hotkey
->logolamp_registered
)
917 led_classdev_unregister(&logolamp_led
);
919 if (fujitsu_hotkey
->kblamps_registered
)
920 led_classdev_unregister(&kblamps_led
);
923 input_unregister_device(input
);
925 kfifo_free(&fujitsu_hotkey
->fifo
);
927 fujitsu_hotkey
->acpi_handle
= NULL
;
932 static void acpi_fujitsu_hotkey_notify(struct acpi_device
*device
, u32 event
)
934 struct input_dev
*input
;
935 int keycode
, keycode_r
;
936 unsigned int irb
= 1;
939 input
= fujitsu_hotkey
->input
;
941 if (fujitsu_hotkey
->rfkill_supported
)
942 fujitsu_hotkey
->rfkill_state
=
943 call_fext_func(FUNC_RFKILL
, 0x4, 0x0, 0x0);
946 case ACPI_FUJITSU_NOTIFY_CODE1
:
949 call_fext_func(FUNC_BUTTONS
, 0x1, 0x0, 0x0)) != 0
950 && (i
++) < MAX_HOTKEY_RINGBUFFER_SIZE
) {
951 switch (irb
& 0x4ff) {
953 keycode
= fujitsu
->keycode1
;
956 keycode
= fujitsu
->keycode2
;
959 keycode
= fujitsu
->keycode3
;
962 keycode
= fujitsu
->keycode4
;
968 vdbg_printk(FUJLAPTOP_DBG_WARN
,
969 "Unknown GIRB result [%x]\n", irb
);
974 vdbg_printk(FUJLAPTOP_DBG_TRACE
,
975 "Push keycode into ringbuffer [%d]\n",
977 status
= kfifo_in_locked(&fujitsu_hotkey
->fifo
,
978 (unsigned char *)&keycode
,
980 &fujitsu_hotkey
->fifo_lock
);
981 if (status
!= sizeof(keycode
)) {
982 vdbg_printk(FUJLAPTOP_DBG_WARN
,
983 "Could not push keycode [0x%x]\n",
986 input_report_key(input
, keycode
, 1);
989 } else if (keycode
== 0) {
992 &fujitsu_hotkey
->fifo
,
993 (unsigned char *) &keycode_r
,
995 &fujitsu_hotkey
->fifo_lock
))
996 == sizeof(keycode_r
)) {
997 input_report_key(input
, keycode_r
, 0);
999 vdbg_printk(FUJLAPTOP_DBG_TRACE
,
1000 "Pop keycode from ringbuffer [%d]\n",
1008 keycode
= KEY_UNKNOWN
;
1009 vdbg_printk(FUJLAPTOP_DBG_WARN
,
1010 "Unsupported event [0x%x]\n", event
);
1011 input_report_key(input
, keycode
, 1);
1013 input_report_key(input
, keycode
, 0);
1019 /* Initialization */
1021 static const struct acpi_device_id fujitsu_device_ids
[] = {
1022 {ACPI_FUJITSU_HID
, 0},
1026 static struct acpi_driver acpi_fujitsu_driver
= {
1027 .name
= ACPI_FUJITSU_DRIVER_NAME
,
1028 .class = ACPI_FUJITSU_CLASS
,
1029 .ids
= fujitsu_device_ids
,
1031 .add
= acpi_fujitsu_add
,
1032 .remove
= acpi_fujitsu_remove
,
1033 .notify
= acpi_fujitsu_notify
,
1037 static const struct acpi_device_id fujitsu_hotkey_device_ids
[] = {
1038 {ACPI_FUJITSU_HOTKEY_HID
, 0},
1042 static struct acpi_driver acpi_fujitsu_hotkey_driver
= {
1043 .name
= ACPI_FUJITSU_HOTKEY_DRIVER_NAME
,
1044 .class = ACPI_FUJITSU_CLASS
,
1045 .ids
= fujitsu_hotkey_device_ids
,
1047 .add
= acpi_fujitsu_hotkey_add
,
1048 .remove
= acpi_fujitsu_hotkey_remove
,
1049 .notify
= acpi_fujitsu_hotkey_notify
,
1053 static const struct acpi_device_id fujitsu_ids
[] __used
= {
1054 {ACPI_FUJITSU_HID
, 0},
1055 {ACPI_FUJITSU_HOTKEY_HID
, 0},
1058 MODULE_DEVICE_TABLE(acpi
, fujitsu_ids
);
1060 static int __init
fujitsu_init(void)
1062 int ret
, result
, max_brightness
;
1067 fujitsu
= kzalloc(sizeof(struct fujitsu_t
), GFP_KERNEL
);
1070 fujitsu
->keycode1
= KEY_PROG1
;
1071 fujitsu
->keycode2
= KEY_PROG2
;
1072 fujitsu
->keycode3
= KEY_PROG3
;
1073 fujitsu
->keycode4
= KEY_PROG4
;
1074 dmi_check_system(fujitsu_dmi_table
);
1076 result
= acpi_bus_register_driver(&acpi_fujitsu_driver
);
1082 /* Register platform stuff */
1084 fujitsu
->pf_device
= platform_device_alloc("fujitsu-laptop", -1);
1085 if (!fujitsu
->pf_device
) {
1087 goto fail_platform_driver
;
1090 ret
= platform_device_add(fujitsu
->pf_device
);
1092 goto fail_platform_device1
;
1095 sysfs_create_group(&fujitsu
->pf_device
->dev
.kobj
,
1096 &fujitsupf_attribute_group
);
1098 goto fail_platform_device2
;
1100 /* Register backlight stuff */
1102 if (!acpi_video_backlight_support()) {
1103 struct backlight_properties props
;
1105 memset(&props
, 0, sizeof(struct backlight_properties
));
1106 max_brightness
= fujitsu
->max_brightness
;
1107 props
.type
= BACKLIGHT_PLATFORM
;
1108 props
.max_brightness
= max_brightness
- 1;
1109 fujitsu
->bl_device
= backlight_device_register("fujitsu-laptop",
1113 if (IS_ERR(fujitsu
->bl_device
)) {
1114 ret
= PTR_ERR(fujitsu
->bl_device
);
1115 fujitsu
->bl_device
= NULL
;
1116 goto fail_sysfs_group
;
1118 fujitsu
->bl_device
->props
.brightness
= fujitsu
->brightness_level
;
1121 ret
= platform_driver_register(&fujitsupf_driver
);
1123 goto fail_backlight
;
1125 /* Register hotkey driver */
1127 fujitsu_hotkey
= kzalloc(sizeof(struct fujitsu_hotkey_t
), GFP_KERNEL
);
1128 if (!fujitsu_hotkey
) {
1133 result
= acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver
);
1139 /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
1141 if (!acpi_video_backlight_support()) {
1142 if (call_fext_func(FUNC_BACKLIGHT
, 0x2, 0x4, 0x0) == 3)
1143 fujitsu
->bl_device
->props
.power
= 4;
1145 fujitsu
->bl_device
->props
.power
= 0;
1148 pr_info("driver " FUJITSU_DRIVER_VERSION
" successfully loaded\n");
1153 kfree(fujitsu_hotkey
);
1155 platform_driver_unregister(&fujitsupf_driver
);
1157 if (fujitsu
->bl_device
)
1158 backlight_device_unregister(fujitsu
->bl_device
);
1160 sysfs_remove_group(&fujitsu
->pf_device
->dev
.kobj
,
1161 &fujitsupf_attribute_group
);
1162 fail_platform_device2
:
1163 platform_device_del(fujitsu
->pf_device
);
1164 fail_platform_device1
:
1165 platform_device_put(fujitsu
->pf_device
);
1166 fail_platform_driver
:
1167 acpi_bus_unregister_driver(&acpi_fujitsu_driver
);
1174 static void __exit
fujitsu_cleanup(void)
1176 acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver
);
1178 kfree(fujitsu_hotkey
);
1180 platform_driver_unregister(&fujitsupf_driver
);
1182 if (fujitsu
->bl_device
)
1183 backlight_device_unregister(fujitsu
->bl_device
);
1185 sysfs_remove_group(&fujitsu
->pf_device
->dev
.kobj
,
1186 &fujitsupf_attribute_group
);
1188 platform_device_unregister(fujitsu
->pf_device
);
1190 acpi_bus_unregister_driver(&acpi_fujitsu_driver
);
1194 pr_info("driver unloaded\n");
1197 module_init(fujitsu_init
);
1198 module_exit(fujitsu_cleanup
);
1200 module_param(use_alt_lcd_levels
, uint
, 0644);
1201 MODULE_PARM_DESC(use_alt_lcd_levels
,
1202 "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
1203 module_param(disable_brightness_adjust
, uint
, 0644);
1204 MODULE_PARM_DESC(disable_brightness_adjust
, "Disable brightness adjustment .");
1205 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
1206 module_param_named(debug
, dbg_level
, uint
, 0644);
1207 MODULE_PARM_DESC(debug
, "Sets debug level bit-mask");
1210 MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
1211 MODULE_DESCRIPTION("Fujitsu laptop extras support");
1212 MODULE_VERSION(FUJITSU_DRIVER_VERSION
);
1213 MODULE_LICENSE("GPL");
1215 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
1216 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
1217 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");