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
117 #define KEY5_CODE 0x420
119 #define MAX_HOTKEY_RINGBUFFER_SIZE 100
120 #define RINGBUFFERSIZE 40
123 #define FUJLAPTOP_LOG ACPI_FUJITSU_HID ": "
124 #define FUJLAPTOP_ERR KERN_ERR FUJLAPTOP_LOG
125 #define FUJLAPTOP_NOTICE KERN_NOTICE FUJLAPTOP_LOG
126 #define FUJLAPTOP_INFO KERN_INFO FUJLAPTOP_LOG
127 #define FUJLAPTOP_DEBUG KERN_DEBUG FUJLAPTOP_LOG
129 #define FUJLAPTOP_DBG_ALL 0xffff
130 #define FUJLAPTOP_DBG_ERROR 0x0001
131 #define FUJLAPTOP_DBG_WARN 0x0002
132 #define FUJLAPTOP_DBG_INFO 0x0004
133 #define FUJLAPTOP_DBG_TRACE 0x0008
135 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
136 #define vdbg_printk(a_dbg_level, format, arg...) \
137 do { if (dbg_level & a_dbg_level) \
138 printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \
141 #define vdbg_printk(a_dbg_level, format, arg...) \
145 /* Device controlling the backlight and associated keys */
147 acpi_handle acpi_handle
;
148 struct acpi_device
*dev
;
149 struct input_dev
*input
;
151 struct backlight_device
*bl_device
;
152 struct platform_device
*pf_device
;
153 int keycode1
, keycode2
, keycode3
, keycode4
, keycode5
;
155 unsigned int max_brightness
;
156 unsigned int brightness_changed
;
157 unsigned int brightness_level
;
160 static struct fujitsu_t
*fujitsu
;
161 static int use_alt_lcd_levels
= -1;
162 static int disable_brightness_adjust
= -1;
164 /* Device used to access other hotkeys on the laptop */
165 struct fujitsu_hotkey_t
{
166 acpi_handle acpi_handle
;
167 struct acpi_device
*dev
;
168 struct input_dev
*input
;
170 struct platform_device
*pf_device
;
172 spinlock_t fifo_lock
;
173 int rfkill_supported
;
175 int logolamp_registered
;
176 int kblamps_registered
;
179 static struct fujitsu_hotkey_t
*fujitsu_hotkey
;
181 static void acpi_fujitsu_hotkey_notify(struct acpi_device
*device
, u32 event
);
183 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
184 static enum led_brightness
logolamp_get(struct led_classdev
*cdev
);
185 static void logolamp_set(struct led_classdev
*cdev
,
186 enum led_brightness brightness
);
188 static struct led_classdev logolamp_led
= {
189 .name
= "fujitsu::logolamp",
190 .brightness_get
= logolamp_get
,
191 .brightness_set
= logolamp_set
194 static enum led_brightness
kblamps_get(struct led_classdev
*cdev
);
195 static void kblamps_set(struct led_classdev
*cdev
,
196 enum led_brightness brightness
);
198 static struct led_classdev kblamps_led
= {
199 .name
= "fujitsu::kblamps",
200 .brightness_get
= kblamps_get
,
201 .brightness_set
= kblamps_set
205 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
206 static u32 dbg_level
= 0x03;
209 static void acpi_fujitsu_notify(struct acpi_device
*device
, u32 event
);
211 /* Fujitsu ACPI interface function */
213 static int call_fext_func(int cmd
, int arg0
, int arg1
, int arg2
)
215 acpi_status status
= AE_OK
;
216 union acpi_object params
[4] = {
217 { .type
= ACPI_TYPE_INTEGER
},
218 { .type
= ACPI_TYPE_INTEGER
},
219 { .type
= ACPI_TYPE_INTEGER
},
220 { .type
= ACPI_TYPE_INTEGER
}
222 struct acpi_object_list arg_list
= { 4, ¶ms
[0] };
223 unsigned long long value
;
224 acpi_handle handle
= NULL
;
226 status
= acpi_get_handle(fujitsu_hotkey
->acpi_handle
, "FUNC", &handle
);
227 if (ACPI_FAILURE(status
)) {
228 vdbg_printk(FUJLAPTOP_DBG_ERROR
,
229 "FUNC interface is not present\n");
233 params
[0].integer
.value
= cmd
;
234 params
[1].integer
.value
= arg0
;
235 params
[2].integer
.value
= arg1
;
236 params
[3].integer
.value
= arg2
;
238 status
= acpi_evaluate_integer(handle
, NULL
, &arg_list
, &value
);
239 if (ACPI_FAILURE(status
)) {
240 vdbg_printk(FUJLAPTOP_DBG_WARN
,
241 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
242 cmd
, arg0
, arg1
, arg2
);
246 vdbg_printk(FUJLAPTOP_DBG_TRACE
,
247 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
248 cmd
, arg0
, arg1
, arg2
, (int)value
);
252 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
253 /* LED class callbacks */
255 static void logolamp_set(struct led_classdev
*cdev
,
256 enum led_brightness brightness
)
258 if (brightness
>= LED_FULL
) {
259 call_fext_func(FUNC_LEDS
, 0x1, LOGOLAMP_POWERON
, FUNC_LED_ON
);
260 call_fext_func(FUNC_LEDS
, 0x1, LOGOLAMP_ALWAYS
, FUNC_LED_ON
);
261 } else if (brightness
>= LED_HALF
) {
262 call_fext_func(FUNC_LEDS
, 0x1, LOGOLAMP_POWERON
, FUNC_LED_ON
);
263 call_fext_func(FUNC_LEDS
, 0x1, LOGOLAMP_ALWAYS
, FUNC_LED_OFF
);
265 call_fext_func(FUNC_LEDS
, 0x1, LOGOLAMP_POWERON
, FUNC_LED_OFF
);
269 static void kblamps_set(struct led_classdev
*cdev
,
270 enum led_brightness brightness
)
272 if (brightness
>= LED_FULL
)
273 call_fext_func(FUNC_LEDS
, 0x1, KEYBOARD_LAMPS
, FUNC_LED_ON
);
275 call_fext_func(FUNC_LEDS
, 0x1, KEYBOARD_LAMPS
, FUNC_LED_OFF
);
278 static enum led_brightness
logolamp_get(struct led_classdev
*cdev
)
280 enum led_brightness brightness
= LED_OFF
;
283 poweron
= call_fext_func(FUNC_LEDS
, 0x2, LOGOLAMP_POWERON
, 0x0);
284 if (poweron
== FUNC_LED_ON
) {
285 brightness
= LED_HALF
;
286 always
= call_fext_func(FUNC_LEDS
, 0x2, LOGOLAMP_ALWAYS
, 0x0);
287 if (always
== FUNC_LED_ON
)
288 brightness
= LED_FULL
;
293 static enum led_brightness
kblamps_get(struct led_classdev
*cdev
)
295 enum led_brightness brightness
= LED_OFF
;
297 if (call_fext_func(FUNC_LEDS
, 0x2, KEYBOARD_LAMPS
, 0x0) == FUNC_LED_ON
)
298 brightness
= LED_FULL
;
304 /* Hardware access for LCD brightness control */
306 static int set_lcd_level(int level
)
308 acpi_status status
= AE_OK
;
309 acpi_handle handle
= NULL
;
311 vdbg_printk(FUJLAPTOP_DBG_TRACE
, "set lcd level via SBLL [%d]\n",
314 if (level
< 0 || level
>= fujitsu
->max_brightness
)
317 status
= acpi_get_handle(fujitsu
->acpi_handle
, "SBLL", &handle
);
318 if (ACPI_FAILURE(status
)) {
319 vdbg_printk(FUJLAPTOP_DBG_ERROR
, "SBLL not present\n");
324 status
= acpi_execute_simple_method(handle
, NULL
, level
);
325 if (ACPI_FAILURE(status
))
331 static int set_lcd_level_alt(int level
)
333 acpi_status status
= AE_OK
;
334 acpi_handle handle
= NULL
;
336 vdbg_printk(FUJLAPTOP_DBG_TRACE
, "set lcd level via SBL2 [%d]\n",
339 if (level
< 0 || level
>= fujitsu
->max_brightness
)
342 status
= acpi_get_handle(fujitsu
->acpi_handle
, "SBL2", &handle
);
343 if (ACPI_FAILURE(status
)) {
344 vdbg_printk(FUJLAPTOP_DBG_ERROR
, "SBL2 not present\n");
348 status
= acpi_execute_simple_method(handle
, NULL
, level
);
349 if (ACPI_FAILURE(status
))
355 static int get_lcd_level(void)
357 unsigned long long state
= 0;
358 acpi_status status
= AE_OK
;
360 vdbg_printk(FUJLAPTOP_DBG_TRACE
, "get lcd level via GBLL\n");
363 acpi_evaluate_integer(fujitsu
->acpi_handle
, "GBLL", NULL
, &state
);
364 if (ACPI_FAILURE(status
))
367 fujitsu
->brightness_level
= state
& 0x0fffffff;
369 if (state
& 0x80000000)
370 fujitsu
->brightness_changed
= 1;
372 fujitsu
->brightness_changed
= 0;
374 return fujitsu
->brightness_level
;
377 static int get_max_brightness(void)
379 unsigned long long state
= 0;
380 acpi_status status
= AE_OK
;
382 vdbg_printk(FUJLAPTOP_DBG_TRACE
, "get max lcd level via RBLL\n");
385 acpi_evaluate_integer(fujitsu
->acpi_handle
, "RBLL", NULL
, &state
);
386 if (ACPI_FAILURE(status
))
389 fujitsu
->max_brightness
= state
;
391 return fujitsu
->max_brightness
;
394 /* Backlight device stuff */
396 static int bl_get_brightness(struct backlight_device
*b
)
398 return get_lcd_level();
401 static int bl_update_status(struct backlight_device
*b
)
404 if (b
->props
.power
== FB_BLANK_POWERDOWN
)
405 ret
= call_fext_func(FUNC_BACKLIGHT
, 0x1, 0x4, 0x3);
407 ret
= call_fext_func(FUNC_BACKLIGHT
, 0x1, 0x4, 0x0);
409 vdbg_printk(FUJLAPTOP_DBG_ERROR
,
410 "Unable to adjust backlight power, error code %i\n",
413 if (use_alt_lcd_levels
)
414 ret
= set_lcd_level_alt(b
->props
.brightness
);
416 ret
= set_lcd_level(b
->props
.brightness
);
418 vdbg_printk(FUJLAPTOP_DBG_ERROR
,
419 "Unable to adjust LCD brightness, error code %i\n",
424 static const struct backlight_ops fujitsubl_ops
= {
425 .get_brightness
= bl_get_brightness
,
426 .update_status
= bl_update_status
,
429 /* Platform LCD brightness device */
432 show_max_brightness(struct device
*dev
,
433 struct device_attribute
*attr
, char *buf
)
438 ret
= get_max_brightness();
442 return sprintf(buf
, "%i\n", ret
);
446 show_brightness_changed(struct device
*dev
,
447 struct device_attribute
*attr
, char *buf
)
452 ret
= fujitsu
->brightness_changed
;
456 return sprintf(buf
, "%i\n", ret
);
459 static ssize_t
show_lcd_level(struct device
*dev
,
460 struct device_attribute
*attr
, char *buf
)
465 ret
= get_lcd_level();
469 return sprintf(buf
, "%i\n", ret
);
472 static ssize_t
store_lcd_level(struct device
*dev
,
473 struct device_attribute
*attr
, const char *buf
,
479 if (sscanf(buf
, "%i", &level
) != 1
480 || (level
< 0 || level
>= fujitsu
->max_brightness
))
483 if (use_alt_lcd_levels
)
484 ret
= set_lcd_level_alt(level
);
486 ret
= set_lcd_level(level
);
490 ret
= get_lcd_level();
498 ignore_store(struct device
*dev
,
499 struct device_attribute
*attr
, const char *buf
, size_t count
)
505 show_lid_state(struct device
*dev
,
506 struct device_attribute
*attr
, char *buf
)
508 if (!(fujitsu_hotkey
->rfkill_supported
& 0x100))
509 return sprintf(buf
, "unknown\n");
510 if (fujitsu_hotkey
->rfkill_state
& 0x100)
511 return sprintf(buf
, "open\n");
513 return sprintf(buf
, "closed\n");
517 show_dock_state(struct device
*dev
,
518 struct device_attribute
*attr
, char *buf
)
520 if (!(fujitsu_hotkey
->rfkill_supported
& 0x200))
521 return sprintf(buf
, "unknown\n");
522 if (fujitsu_hotkey
->rfkill_state
& 0x200)
523 return sprintf(buf
, "docked\n");
525 return sprintf(buf
, "undocked\n");
529 show_radios_state(struct device
*dev
,
530 struct device_attribute
*attr
, char *buf
)
532 if (!(fujitsu_hotkey
->rfkill_supported
& 0x20))
533 return sprintf(buf
, "unknown\n");
534 if (fujitsu_hotkey
->rfkill_state
& 0x20)
535 return sprintf(buf
, "on\n");
537 return sprintf(buf
, "killed\n");
540 static DEVICE_ATTR(max_brightness
, 0444, show_max_brightness
, ignore_store
);
541 static DEVICE_ATTR(brightness_changed
, 0444, show_brightness_changed
,
543 static DEVICE_ATTR(lcd_level
, 0644, show_lcd_level
, store_lcd_level
);
544 static DEVICE_ATTR(lid
, 0444, show_lid_state
, ignore_store
);
545 static DEVICE_ATTR(dock
, 0444, show_dock_state
, ignore_store
);
546 static DEVICE_ATTR(radios
, 0444, show_radios_state
, ignore_store
);
548 static struct attribute
*fujitsupf_attributes
[] = {
549 &dev_attr_brightness_changed
.attr
,
550 &dev_attr_max_brightness
.attr
,
551 &dev_attr_lcd_level
.attr
,
554 &dev_attr_radios
.attr
,
558 static struct attribute_group fujitsupf_attribute_group
= {
559 .attrs
= fujitsupf_attributes
562 static struct platform_driver fujitsupf_driver
= {
564 .name
= "fujitsu-laptop",
568 static void __init
dmi_check_cb_common(const struct dmi_system_id
*id
)
570 pr_info("Identified laptop model '%s'\n", id
->ident
);
571 if (use_alt_lcd_levels
== -1) {
572 if (acpi_has_method(NULL
,
573 "\\_SB.PCI0.LPCB.FJEX.SBL2"))
574 use_alt_lcd_levels
= 1;
576 use_alt_lcd_levels
= 0;
577 vdbg_printk(FUJLAPTOP_DBG_TRACE
, "auto-detected usealt as "
578 "%i\n", use_alt_lcd_levels
);
582 static int __init
dmi_check_cb_s6410(const struct dmi_system_id
*id
)
584 dmi_check_cb_common(id
);
585 fujitsu
->keycode1
= KEY_SCREENLOCK
; /* "Lock" */
586 fujitsu
->keycode2
= KEY_HELP
; /* "Mobility Center" */
590 static int __init
dmi_check_cb_s6420(const struct dmi_system_id
*id
)
592 dmi_check_cb_common(id
);
593 fujitsu
->keycode1
= KEY_SCREENLOCK
; /* "Lock" */
594 fujitsu
->keycode2
= KEY_HELP
; /* "Mobility Center" */
598 static int __init
dmi_check_cb_p8010(const struct dmi_system_id
*id
)
600 dmi_check_cb_common(id
);
601 fujitsu
->keycode1
= KEY_HELP
; /* "Support" */
602 fujitsu
->keycode3
= KEY_SWITCHVIDEOMODE
; /* "Presentation" */
603 fujitsu
->keycode4
= KEY_WWW
; /* "Internet" */
607 static const struct dmi_system_id fujitsu_dmi_table
[] __initconst
= {
609 .ident
= "Fujitsu Siemens S6410",
611 DMI_MATCH(DMI_SYS_VENDOR
, "FUJITSU SIEMENS"),
612 DMI_MATCH(DMI_PRODUCT_NAME
, "LIFEBOOK S6410"),
614 .callback
= dmi_check_cb_s6410
},
616 .ident
= "Fujitsu Siemens S6420",
618 DMI_MATCH(DMI_SYS_VENDOR
, "FUJITSU SIEMENS"),
619 DMI_MATCH(DMI_PRODUCT_NAME
, "LIFEBOOK S6420"),
621 .callback
= dmi_check_cb_s6420
},
623 .ident
= "Fujitsu LifeBook P8010",
625 DMI_MATCH(DMI_SYS_VENDOR
, "FUJITSU"),
626 DMI_MATCH(DMI_PRODUCT_NAME
, "LifeBook P8010"),
628 .callback
= dmi_check_cb_p8010
},
632 /* ACPI device for LCD brightness control */
634 static int acpi_fujitsu_add(struct acpi_device
*device
)
637 struct input_dev
*input
;
643 fujitsu
->acpi_handle
= device
->handle
;
644 sprintf(acpi_device_name(device
), "%s", ACPI_FUJITSU_DEVICE_NAME
);
645 sprintf(acpi_device_class(device
), "%s", ACPI_FUJITSU_CLASS
);
646 device
->driver_data
= fujitsu
;
648 fujitsu
->input
= input
= input_allocate_device();
654 snprintf(fujitsu
->phys
, sizeof(fujitsu
->phys
),
655 "%s/video/input0", acpi_device_hid(device
));
657 input
->name
= acpi_device_name(device
);
658 input
->phys
= fujitsu
->phys
;
659 input
->id
.bustype
= BUS_HOST
;
660 input
->id
.product
= 0x06;
661 input
->dev
.parent
= &device
->dev
;
662 input
->evbit
[0] = BIT(EV_KEY
);
663 set_bit(KEY_BRIGHTNESSUP
, input
->keybit
);
664 set_bit(KEY_BRIGHTNESSDOWN
, input
->keybit
);
665 set_bit(KEY_UNKNOWN
, input
->keybit
);
667 error
= input_register_device(input
);
669 goto err_free_input_dev
;
671 error
= acpi_bus_update_power(fujitsu
->acpi_handle
, &state
);
673 pr_err("Error reading power state\n");
674 goto err_unregister_input_dev
;
677 pr_info("ACPI: %s [%s] (%s)\n",
678 acpi_device_name(device
), acpi_device_bid(device
),
679 !device
->power
.state
? "on" : "off");
681 fujitsu
->dev
= device
;
683 if (acpi_has_method(device
->handle
, METHOD_NAME__INI
)) {
684 vdbg_printk(FUJLAPTOP_DBG_INFO
, "Invoking _INI\n");
686 (acpi_evaluate_object
687 (device
->handle
, METHOD_NAME__INI
, NULL
, NULL
)))
688 pr_err("_INI Method failed\n");
691 /* do config (detect defaults) */
692 use_alt_lcd_levels
= use_alt_lcd_levels
== 1 ? 1 : 0;
693 disable_brightness_adjust
= disable_brightness_adjust
== 1 ? 1 : 0;
694 vdbg_printk(FUJLAPTOP_DBG_INFO
,
695 "config: [alt interface: %d], [adjust disable: %d]\n",
696 use_alt_lcd_levels
, disable_brightness_adjust
);
698 if (get_max_brightness() <= 0)
699 fujitsu
->max_brightness
= FUJITSU_LCD_N_LEVELS
;
704 err_unregister_input_dev
:
705 input_unregister_device(input
);
708 input_free_device(input
);
713 static int acpi_fujitsu_remove(struct acpi_device
*device
)
715 struct fujitsu_t
*fujitsu
= acpi_driver_data(device
);
716 struct input_dev
*input
= fujitsu
->input
;
718 input_unregister_device(input
);
720 fujitsu
->acpi_handle
= NULL
;
725 /* Brightness notify */
727 static void acpi_fujitsu_notify(struct acpi_device
*device
, u32 event
)
729 struct input_dev
*input
;
733 input
= fujitsu
->input
;
736 case ACPI_FUJITSU_NOTIFY_CODE1
:
738 oldb
= fujitsu
->brightness_level
;
740 newb
= fujitsu
->brightness_level
;
742 vdbg_printk(FUJLAPTOP_DBG_TRACE
,
743 "brightness button event [%i -> %i (%i)]\n",
744 oldb
, newb
, fujitsu
->brightness_changed
);
747 if (disable_brightness_adjust
!= 1) {
748 if (use_alt_lcd_levels
)
749 set_lcd_level_alt(newb
);
753 keycode
= KEY_BRIGHTNESSUP
;
754 } else if (oldb
> newb
) {
755 if (disable_brightness_adjust
!= 1) {
756 if (use_alt_lcd_levels
)
757 set_lcd_level_alt(newb
);
761 keycode
= KEY_BRIGHTNESSDOWN
;
765 keycode
= KEY_UNKNOWN
;
766 vdbg_printk(FUJLAPTOP_DBG_WARN
,
767 "unsupported event [0x%x]\n", event
);
772 input_report_key(input
, keycode
, 1);
774 input_report_key(input
, keycode
, 0);
779 /* ACPI device for hotkey handling */
781 static int acpi_fujitsu_hotkey_add(struct acpi_device
*device
)
785 struct input_dev
*input
;
792 fujitsu_hotkey
->acpi_handle
= device
->handle
;
793 sprintf(acpi_device_name(device
), "%s",
794 ACPI_FUJITSU_HOTKEY_DEVICE_NAME
);
795 sprintf(acpi_device_class(device
), "%s", ACPI_FUJITSU_CLASS
);
796 device
->driver_data
= fujitsu_hotkey
;
799 spin_lock_init(&fujitsu_hotkey
->fifo_lock
);
800 error
= kfifo_alloc(&fujitsu_hotkey
->fifo
, RINGBUFFERSIZE
* sizeof(int),
803 pr_err("kfifo_alloc failed\n");
807 fujitsu_hotkey
->input
= input
= input_allocate_device();
813 snprintf(fujitsu_hotkey
->phys
, sizeof(fujitsu_hotkey
->phys
),
814 "%s/video/input0", acpi_device_hid(device
));
816 input
->name
= acpi_device_name(device
);
817 input
->phys
= fujitsu_hotkey
->phys
;
818 input
->id
.bustype
= BUS_HOST
;
819 input
->id
.product
= 0x06;
820 input
->dev
.parent
= &device
->dev
;
822 set_bit(EV_KEY
, input
->evbit
);
823 set_bit(fujitsu
->keycode1
, input
->keybit
);
824 set_bit(fujitsu
->keycode2
, input
->keybit
);
825 set_bit(fujitsu
->keycode3
, input
->keybit
);
826 set_bit(fujitsu
->keycode4
, input
->keybit
);
827 set_bit(fujitsu
->keycode5
, input
->keybit
);
828 set_bit(KEY_UNKNOWN
, input
->keybit
);
830 error
= input_register_device(input
);
832 goto err_free_input_dev
;
834 error
= acpi_bus_update_power(fujitsu_hotkey
->acpi_handle
, &state
);
836 pr_err("Error reading power state\n");
837 goto err_unregister_input_dev
;
840 pr_info("ACPI: %s [%s] (%s)\n",
841 acpi_device_name(device
), acpi_device_bid(device
),
842 !device
->power
.state
? "on" : "off");
844 fujitsu_hotkey
->dev
= device
;
846 if (acpi_has_method(device
->handle
, METHOD_NAME__INI
)) {
847 vdbg_printk(FUJLAPTOP_DBG_INFO
, "Invoking _INI\n");
849 (acpi_evaluate_object
850 (device
->handle
, METHOD_NAME__INI
, NULL
, NULL
)))
851 pr_err("_INI Method failed\n");
855 while (call_fext_func(FUNC_BUTTONS
, 0x1, 0x0, 0x0) != 0
856 && (i
++) < MAX_HOTKEY_RINGBUFFER_SIZE
)
857 ; /* No action, result is discarded */
858 vdbg_printk(FUJLAPTOP_DBG_INFO
, "Discarded %i ringbuffer entries\n", i
);
860 fujitsu_hotkey
->rfkill_supported
=
861 call_fext_func(FUNC_RFKILL
, 0x0, 0x0, 0x0);
863 /* Make sure our bitmask of supported functions is cleared if the
864 RFKILL function block is not implemented, like on the S7020. */
865 if (fujitsu_hotkey
->rfkill_supported
== UNSUPPORTED_CMD
)
866 fujitsu_hotkey
->rfkill_supported
= 0;
868 if (fujitsu_hotkey
->rfkill_supported
)
869 fujitsu_hotkey
->rfkill_state
=
870 call_fext_func(FUNC_RFKILL
, 0x4, 0x0, 0x0);
872 /* Suspect this is a keymap of the application panel, print it */
873 pr_info("BTNI: [0x%x]\n", call_fext_func(FUNC_BUTTONS
, 0x0, 0x0, 0x0));
875 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
876 if (call_fext_func(FUNC_LEDS
, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON
) {
877 result
= led_classdev_register(&fujitsu
->pf_device
->dev
,
880 fujitsu_hotkey
->logolamp_registered
= 1;
882 pr_err("Could not register LED handler for logo lamp, error %i\n",
887 if ((call_fext_func(FUNC_LEDS
, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS
) &&
888 (call_fext_func(FUNC_BUTTONS
, 0x0, 0x0, 0x0) == 0x0)) {
889 result
= led_classdev_register(&fujitsu
->pf_device
->dev
,
892 fujitsu_hotkey
->kblamps_registered
= 1;
894 pr_err("Could not register LED handler for keyboard lamps, error %i\n",
902 err_unregister_input_dev
:
903 input_unregister_device(input
);
906 input_free_device(input
);
908 kfifo_free(&fujitsu_hotkey
->fifo
);
913 static int acpi_fujitsu_hotkey_remove(struct acpi_device
*device
)
915 struct fujitsu_hotkey_t
*fujitsu_hotkey
= acpi_driver_data(device
);
916 struct input_dev
*input
= fujitsu_hotkey
->input
;
918 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
919 if (fujitsu_hotkey
->logolamp_registered
)
920 led_classdev_unregister(&logolamp_led
);
922 if (fujitsu_hotkey
->kblamps_registered
)
923 led_classdev_unregister(&kblamps_led
);
926 input_unregister_device(input
);
928 kfifo_free(&fujitsu_hotkey
->fifo
);
930 fujitsu_hotkey
->acpi_handle
= NULL
;
935 static void acpi_fujitsu_hotkey_notify(struct acpi_device
*device
, u32 event
)
937 struct input_dev
*input
;
938 int keycode
, keycode_r
;
939 unsigned int irb
= 1;
942 input
= fujitsu_hotkey
->input
;
944 if (fujitsu_hotkey
->rfkill_supported
)
945 fujitsu_hotkey
->rfkill_state
=
946 call_fext_func(FUNC_RFKILL
, 0x4, 0x0, 0x0);
949 case ACPI_FUJITSU_NOTIFY_CODE1
:
952 call_fext_func(FUNC_BUTTONS
, 0x1, 0x0, 0x0)) != 0
953 && (i
++) < MAX_HOTKEY_RINGBUFFER_SIZE
) {
954 switch (irb
& 0x4ff) {
956 keycode
= fujitsu
->keycode1
;
959 keycode
= fujitsu
->keycode2
;
962 keycode
= fujitsu
->keycode3
;
965 keycode
= fujitsu
->keycode4
;
968 keycode
= fujitsu
->keycode5
;
974 vdbg_printk(FUJLAPTOP_DBG_WARN
,
975 "Unknown GIRB result [%x]\n", irb
);
980 vdbg_printk(FUJLAPTOP_DBG_TRACE
,
981 "Push keycode into ringbuffer [%d]\n",
983 status
= kfifo_in_locked(&fujitsu_hotkey
->fifo
,
984 (unsigned char *)&keycode
,
986 &fujitsu_hotkey
->fifo_lock
);
987 if (status
!= sizeof(keycode
)) {
988 vdbg_printk(FUJLAPTOP_DBG_WARN
,
989 "Could not push keycode [0x%x]\n",
992 input_report_key(input
, keycode
, 1);
995 } else if (keycode
== 0) {
998 &fujitsu_hotkey
->fifo
,
999 (unsigned char *) &keycode_r
,
1001 &fujitsu_hotkey
->fifo_lock
))
1002 == sizeof(keycode_r
)) {
1003 input_report_key(input
, keycode_r
, 0);
1005 vdbg_printk(FUJLAPTOP_DBG_TRACE
,
1006 "Pop keycode from ringbuffer [%d]\n",
1014 keycode
= KEY_UNKNOWN
;
1015 vdbg_printk(FUJLAPTOP_DBG_WARN
,
1016 "Unsupported event [0x%x]\n", event
);
1017 input_report_key(input
, keycode
, 1);
1019 input_report_key(input
, keycode
, 0);
1025 /* Initialization */
1027 static const struct acpi_device_id fujitsu_device_ids
[] = {
1028 {ACPI_FUJITSU_HID
, 0},
1032 static struct acpi_driver acpi_fujitsu_driver
= {
1033 .name
= ACPI_FUJITSU_DRIVER_NAME
,
1034 .class = ACPI_FUJITSU_CLASS
,
1035 .ids
= fujitsu_device_ids
,
1037 .add
= acpi_fujitsu_add
,
1038 .remove
= acpi_fujitsu_remove
,
1039 .notify
= acpi_fujitsu_notify
,
1043 static const struct acpi_device_id fujitsu_hotkey_device_ids
[] = {
1044 {ACPI_FUJITSU_HOTKEY_HID
, 0},
1048 static struct acpi_driver acpi_fujitsu_hotkey_driver
= {
1049 .name
= ACPI_FUJITSU_HOTKEY_DRIVER_NAME
,
1050 .class = ACPI_FUJITSU_CLASS
,
1051 .ids
= fujitsu_hotkey_device_ids
,
1053 .add
= acpi_fujitsu_hotkey_add
,
1054 .remove
= acpi_fujitsu_hotkey_remove
,
1055 .notify
= acpi_fujitsu_hotkey_notify
,
1059 static const struct acpi_device_id fujitsu_ids
[] __used
= {
1060 {ACPI_FUJITSU_HID
, 0},
1061 {ACPI_FUJITSU_HOTKEY_HID
, 0},
1064 MODULE_DEVICE_TABLE(acpi
, fujitsu_ids
);
1066 static int __init
fujitsu_init(void)
1068 int ret
, result
, max_brightness
;
1073 fujitsu
= kzalloc(sizeof(struct fujitsu_t
), GFP_KERNEL
);
1076 fujitsu
->keycode1
= KEY_PROG1
;
1077 fujitsu
->keycode2
= KEY_PROG2
;
1078 fujitsu
->keycode3
= KEY_PROG3
;
1079 fujitsu
->keycode4
= KEY_PROG4
;
1080 fujitsu
->keycode5
= KEY_RFKILL
;
1081 dmi_check_system(fujitsu_dmi_table
);
1083 result
= acpi_bus_register_driver(&acpi_fujitsu_driver
);
1089 /* Register platform stuff */
1091 fujitsu
->pf_device
= platform_device_alloc("fujitsu-laptop", -1);
1092 if (!fujitsu
->pf_device
) {
1094 goto fail_platform_driver
;
1097 ret
= platform_device_add(fujitsu
->pf_device
);
1099 goto fail_platform_device1
;
1102 sysfs_create_group(&fujitsu
->pf_device
->dev
.kobj
,
1103 &fujitsupf_attribute_group
);
1105 goto fail_platform_device2
;
1107 /* Register backlight stuff */
1109 if (acpi_video_get_backlight_type() == acpi_backlight_vendor
) {
1110 struct backlight_properties props
;
1112 memset(&props
, 0, sizeof(struct backlight_properties
));
1113 max_brightness
= fujitsu
->max_brightness
;
1114 props
.type
= BACKLIGHT_PLATFORM
;
1115 props
.max_brightness
= max_brightness
- 1;
1116 fujitsu
->bl_device
= backlight_device_register("fujitsu-laptop",
1120 if (IS_ERR(fujitsu
->bl_device
)) {
1121 ret
= PTR_ERR(fujitsu
->bl_device
);
1122 fujitsu
->bl_device
= NULL
;
1123 goto fail_sysfs_group
;
1125 fujitsu
->bl_device
->props
.brightness
= fujitsu
->brightness_level
;
1128 ret
= platform_driver_register(&fujitsupf_driver
);
1130 goto fail_backlight
;
1132 /* Register hotkey driver */
1134 fujitsu_hotkey
= kzalloc(sizeof(struct fujitsu_hotkey_t
), GFP_KERNEL
);
1135 if (!fujitsu_hotkey
) {
1140 result
= acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver
);
1146 /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
1147 if (acpi_video_get_backlight_type() == acpi_backlight_vendor
) {
1148 if (call_fext_func(FUNC_BACKLIGHT
, 0x2, 0x4, 0x0) == 3)
1149 fujitsu
->bl_device
->props
.power
= FB_BLANK_POWERDOWN
;
1151 fujitsu
->bl_device
->props
.power
= FB_BLANK_UNBLANK
;
1154 pr_info("driver " FUJITSU_DRIVER_VERSION
" successfully loaded\n");
1159 kfree(fujitsu_hotkey
);
1161 platform_driver_unregister(&fujitsupf_driver
);
1163 backlight_device_unregister(fujitsu
->bl_device
);
1165 sysfs_remove_group(&fujitsu
->pf_device
->dev
.kobj
,
1166 &fujitsupf_attribute_group
);
1167 fail_platform_device2
:
1168 platform_device_del(fujitsu
->pf_device
);
1169 fail_platform_device1
:
1170 platform_device_put(fujitsu
->pf_device
);
1171 fail_platform_driver
:
1172 acpi_bus_unregister_driver(&acpi_fujitsu_driver
);
1179 static void __exit
fujitsu_cleanup(void)
1181 acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver
);
1183 kfree(fujitsu_hotkey
);
1185 platform_driver_unregister(&fujitsupf_driver
);
1187 backlight_device_unregister(fujitsu
->bl_device
);
1189 sysfs_remove_group(&fujitsu
->pf_device
->dev
.kobj
,
1190 &fujitsupf_attribute_group
);
1192 platform_device_unregister(fujitsu
->pf_device
);
1194 acpi_bus_unregister_driver(&acpi_fujitsu_driver
);
1198 pr_info("driver unloaded\n");
1201 module_init(fujitsu_init
);
1202 module_exit(fujitsu_cleanup
);
1204 module_param(use_alt_lcd_levels
, uint
, 0644);
1205 MODULE_PARM_DESC(use_alt_lcd_levels
,
1206 "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
1207 module_param(disable_brightness_adjust
, uint
, 0644);
1208 MODULE_PARM_DESC(disable_brightness_adjust
, "Disable brightness adjustment .");
1209 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
1210 module_param_named(debug
, dbg_level
, uint
, 0644);
1211 MODULE_PARM_DESC(debug
, "Sets debug level bit-mask");
1214 MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
1215 MODULE_DESCRIPTION("Fujitsu laptop extras support");
1216 MODULE_VERSION(FUJITSU_DRIVER_VERSION
);
1217 MODULE_LICENSE("GPL");
1219 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
1220 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
1221 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");