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/video_output.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>
76 #define FUJITSU_DRIVER_VERSION "0.6.0"
78 #define FUJITSU_LCD_N_LEVELS 8
80 #define ACPI_FUJITSU_CLASS "fujitsu"
81 #define ACPI_FUJITSU_HID "FUJ02B1"
82 #define ACPI_FUJITSU_DRIVER_NAME "Fujitsu laptop FUJ02B1 ACPI brightness driver"
83 #define ACPI_FUJITSU_DEVICE_NAME "Fujitsu FUJ02B1"
84 #define ACPI_FUJITSU_HOTKEY_HID "FUJ02E3"
85 #define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver"
86 #define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3"
88 #define ACPI_FUJITSU_NOTIFY_CODE1 0x80
90 #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS 0x86
91 #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS 0x87
93 /* FUNC interface - command values */
94 #define FUNC_RFKILL 0x1000
95 #define FUNC_LEDS 0x1001
96 #define FUNC_BUTTONS 0x1002
97 #define FUNC_BACKLIGHT 0x1004
99 /* FUNC interface - responses */
100 #define UNSUPPORTED_CMD 0x80000000
102 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
103 /* FUNC interface - LED control */
104 #define FUNC_LED_OFF 0x1
105 #define FUNC_LED_ON 0x30001
106 #define KEYBOARD_LAMPS 0x100
107 #define LOGOLAMP_POWERON 0x2000
108 #define LOGOLAMP_ALWAYS 0x4000
112 #define KEY1_CODE 0x410 /* codes for the keys in the GIRB register */
113 #define KEY2_CODE 0x411
114 #define KEY3_CODE 0x412
115 #define KEY4_CODE 0x413
117 #define MAX_HOTKEY_RINGBUFFER_SIZE 100
118 #define RINGBUFFERSIZE 40
121 #define FUJLAPTOP_LOG ACPI_FUJITSU_HID ": "
122 #define FUJLAPTOP_ERR KERN_ERR FUJLAPTOP_LOG
123 #define FUJLAPTOP_NOTICE KERN_NOTICE FUJLAPTOP_LOG
124 #define FUJLAPTOP_INFO KERN_INFO FUJLAPTOP_LOG
125 #define FUJLAPTOP_DEBUG KERN_DEBUG FUJLAPTOP_LOG
127 #define FUJLAPTOP_DBG_ALL 0xffff
128 #define FUJLAPTOP_DBG_ERROR 0x0001
129 #define FUJLAPTOP_DBG_WARN 0x0002
130 #define FUJLAPTOP_DBG_INFO 0x0004
131 #define FUJLAPTOP_DBG_TRACE 0x0008
133 #define dbg_printk(a_dbg_level, format, arg...) \
134 do { if (dbg_level & a_dbg_level) \
135 printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \
137 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
138 #define vdbg_printk(a_dbg_level, format, arg...) \
139 dbg_printk(a_dbg_level, format, ## arg)
141 #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
== 4)
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",
564 .owner
= THIS_MODULE
,
568 static void 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 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 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 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 struct dmi_system_id fujitsu_dmi_table
[] = {
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(KEY_UNKNOWN
, input
->keybit
);
829 error
= input_register_device(input
);
831 goto err_free_input_dev
;
833 error
= acpi_bus_update_power(fujitsu_hotkey
->acpi_handle
, &state
);
835 pr_err("Error reading power state\n");
836 goto err_unregister_input_dev
;
839 pr_info("ACPI: %s [%s] (%s)\n",
840 acpi_device_name(device
), acpi_device_bid(device
),
841 !device
->power
.state
? "on" : "off");
843 fujitsu_hotkey
->dev
= device
;
845 if (acpi_has_method(device
->handle
, METHOD_NAME__INI
)) {
846 vdbg_printk(FUJLAPTOP_DBG_INFO
, "Invoking _INI\n");
848 (acpi_evaluate_object
849 (device
->handle
, METHOD_NAME__INI
, NULL
, NULL
)))
850 pr_err("_INI Method failed\n");
854 while (call_fext_func(FUNC_BUTTONS
, 0x1, 0x0, 0x0) != 0
855 && (i
++) < MAX_HOTKEY_RINGBUFFER_SIZE
)
856 ; /* No action, result is discarded */
857 vdbg_printk(FUJLAPTOP_DBG_INFO
, "Discarded %i ringbuffer entries\n", i
);
859 fujitsu_hotkey
->rfkill_supported
=
860 call_fext_func(FUNC_RFKILL
, 0x0, 0x0, 0x0);
862 /* Make sure our bitmask of supported functions is cleared if the
863 RFKILL function block is not implemented, like on the S7020. */
864 if (fujitsu_hotkey
->rfkill_supported
== UNSUPPORTED_CMD
)
865 fujitsu_hotkey
->rfkill_supported
= 0;
867 if (fujitsu_hotkey
->rfkill_supported
)
868 fujitsu_hotkey
->rfkill_state
=
869 call_fext_func(FUNC_RFKILL
, 0x4, 0x0, 0x0);
871 /* Suspect this is a keymap of the application panel, print it */
872 pr_info("BTNI: [0x%x]\n", call_fext_func(FUNC_BUTTONS
, 0x0, 0x0, 0x0));
874 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
875 if (call_fext_func(FUNC_LEDS
, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON
) {
876 result
= led_classdev_register(&fujitsu
->pf_device
->dev
,
879 fujitsu_hotkey
->logolamp_registered
= 1;
881 pr_err("Could not register LED handler for logo lamp, error %i\n",
886 if ((call_fext_func(FUNC_LEDS
, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS
) &&
887 (call_fext_func(FUNC_BUTTONS
, 0x0, 0x0, 0x0) == 0x0)) {
888 result
= led_classdev_register(&fujitsu
->pf_device
->dev
,
891 fujitsu_hotkey
->kblamps_registered
= 1;
893 pr_err("Could not register LED handler for keyboard lamps, error %i\n",
901 err_unregister_input_dev
:
902 input_unregister_device(input
);
905 input_free_device(input
);
907 kfifo_free(&fujitsu_hotkey
->fifo
);
912 static int acpi_fujitsu_hotkey_remove(struct acpi_device
*device
)
914 struct fujitsu_hotkey_t
*fujitsu_hotkey
= acpi_driver_data(device
);
915 struct input_dev
*input
= fujitsu_hotkey
->input
;
917 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
918 if (fujitsu_hotkey
->logolamp_registered
)
919 led_classdev_unregister(&logolamp_led
);
921 if (fujitsu_hotkey
->kblamps_registered
)
922 led_classdev_unregister(&kblamps_led
);
925 input_unregister_device(input
);
927 kfifo_free(&fujitsu_hotkey
->fifo
);
929 fujitsu_hotkey
->acpi_handle
= NULL
;
934 static void acpi_fujitsu_hotkey_notify(struct acpi_device
*device
, u32 event
)
936 struct input_dev
*input
;
937 int keycode
, keycode_r
;
938 unsigned int irb
= 1;
941 input
= fujitsu_hotkey
->input
;
943 if (fujitsu_hotkey
->rfkill_supported
)
944 fujitsu_hotkey
->rfkill_state
=
945 call_fext_func(FUNC_RFKILL
, 0x4, 0x0, 0x0);
948 case ACPI_FUJITSU_NOTIFY_CODE1
:
951 call_fext_func(FUNC_BUTTONS
, 0x1, 0x0, 0x0)) != 0
952 && (i
++) < MAX_HOTKEY_RINGBUFFER_SIZE
) {
953 switch (irb
& 0x4ff) {
955 keycode
= fujitsu
->keycode1
;
958 keycode
= fujitsu
->keycode2
;
961 keycode
= fujitsu
->keycode3
;
964 keycode
= fujitsu
->keycode4
;
970 vdbg_printk(FUJLAPTOP_DBG_WARN
,
971 "Unknown GIRB result [%x]\n", irb
);
976 vdbg_printk(FUJLAPTOP_DBG_TRACE
,
977 "Push keycode into ringbuffer [%d]\n",
979 status
= kfifo_in_locked(&fujitsu_hotkey
->fifo
,
980 (unsigned char *)&keycode
,
982 &fujitsu_hotkey
->fifo_lock
);
983 if (status
!= sizeof(keycode
)) {
984 vdbg_printk(FUJLAPTOP_DBG_WARN
,
985 "Could not push keycode [0x%x]\n",
988 input_report_key(input
, keycode
, 1);
991 } else if (keycode
== 0) {
994 &fujitsu_hotkey
->fifo
,
995 (unsigned char *) &keycode_r
,
997 &fujitsu_hotkey
->fifo_lock
))
998 == sizeof(keycode_r
)) {
999 input_report_key(input
, keycode_r
, 0);
1001 vdbg_printk(FUJLAPTOP_DBG_TRACE
,
1002 "Pop keycode from ringbuffer [%d]\n",
1010 keycode
= KEY_UNKNOWN
;
1011 vdbg_printk(FUJLAPTOP_DBG_WARN
,
1012 "Unsupported event [0x%x]\n", event
);
1013 input_report_key(input
, keycode
, 1);
1015 input_report_key(input
, keycode
, 0);
1021 /* Initialization */
1023 static const struct acpi_device_id fujitsu_device_ids
[] = {
1024 {ACPI_FUJITSU_HID
, 0},
1028 static struct acpi_driver acpi_fujitsu_driver
= {
1029 .name
= ACPI_FUJITSU_DRIVER_NAME
,
1030 .class = ACPI_FUJITSU_CLASS
,
1031 .ids
= fujitsu_device_ids
,
1033 .add
= acpi_fujitsu_add
,
1034 .remove
= acpi_fujitsu_remove
,
1035 .notify
= acpi_fujitsu_notify
,
1039 static const struct acpi_device_id fujitsu_hotkey_device_ids
[] = {
1040 {ACPI_FUJITSU_HOTKEY_HID
, 0},
1044 static struct acpi_driver acpi_fujitsu_hotkey_driver
= {
1045 .name
= ACPI_FUJITSU_HOTKEY_DRIVER_NAME
,
1046 .class = ACPI_FUJITSU_CLASS
,
1047 .ids
= fujitsu_hotkey_device_ids
,
1049 .add
= acpi_fujitsu_hotkey_add
,
1050 .remove
= acpi_fujitsu_hotkey_remove
,
1051 .notify
= acpi_fujitsu_hotkey_notify
,
1055 static int __init
fujitsu_init(void)
1057 int ret
, result
, max_brightness
;
1062 fujitsu
= kzalloc(sizeof(struct fujitsu_t
), GFP_KERNEL
);
1065 fujitsu
->keycode1
= KEY_PROG1
;
1066 fujitsu
->keycode2
= KEY_PROG2
;
1067 fujitsu
->keycode3
= KEY_PROG3
;
1068 fujitsu
->keycode4
= KEY_PROG4
;
1069 dmi_check_system(fujitsu_dmi_table
);
1071 result
= acpi_bus_register_driver(&acpi_fujitsu_driver
);
1077 /* Register platform stuff */
1079 fujitsu
->pf_device
= platform_device_alloc("fujitsu-laptop", -1);
1080 if (!fujitsu
->pf_device
) {
1082 goto fail_platform_driver
;
1085 ret
= platform_device_add(fujitsu
->pf_device
);
1087 goto fail_platform_device1
;
1090 sysfs_create_group(&fujitsu
->pf_device
->dev
.kobj
,
1091 &fujitsupf_attribute_group
);
1093 goto fail_platform_device2
;
1095 /* Register backlight stuff */
1097 if (!acpi_video_backlight_support()) {
1098 struct backlight_properties props
;
1100 memset(&props
, 0, sizeof(struct backlight_properties
));
1101 max_brightness
= fujitsu
->max_brightness
;
1102 props
.type
= BACKLIGHT_PLATFORM
;
1103 props
.max_brightness
= max_brightness
- 1;
1104 fujitsu
->bl_device
= backlight_device_register("fujitsu-laptop",
1108 if (IS_ERR(fujitsu
->bl_device
)) {
1109 ret
= PTR_ERR(fujitsu
->bl_device
);
1110 fujitsu
->bl_device
= NULL
;
1111 goto fail_sysfs_group
;
1113 fujitsu
->bl_device
->props
.brightness
= fujitsu
->brightness_level
;
1116 ret
= platform_driver_register(&fujitsupf_driver
);
1118 goto fail_backlight
;
1120 /* Register hotkey driver */
1122 fujitsu_hotkey
= kzalloc(sizeof(struct fujitsu_hotkey_t
), GFP_KERNEL
);
1123 if (!fujitsu_hotkey
) {
1128 result
= acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver
);
1134 /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
1136 if (!acpi_video_backlight_support()) {
1137 if (call_fext_func(FUNC_BACKLIGHT
, 0x2, 0x4, 0x0) == 3)
1138 fujitsu
->bl_device
->props
.power
= 4;
1140 fujitsu
->bl_device
->props
.power
= 0;
1143 pr_info("driver " FUJITSU_DRIVER_VERSION
" successfully loaded\n");
1148 kfree(fujitsu_hotkey
);
1150 platform_driver_unregister(&fujitsupf_driver
);
1152 if (fujitsu
->bl_device
)
1153 backlight_device_unregister(fujitsu
->bl_device
);
1155 sysfs_remove_group(&fujitsu
->pf_device
->dev
.kobj
,
1156 &fujitsupf_attribute_group
);
1157 fail_platform_device2
:
1158 platform_device_del(fujitsu
->pf_device
);
1159 fail_platform_device1
:
1160 platform_device_put(fujitsu
->pf_device
);
1161 fail_platform_driver
:
1162 acpi_bus_unregister_driver(&acpi_fujitsu_driver
);
1169 static void __exit
fujitsu_cleanup(void)
1171 acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver
);
1173 kfree(fujitsu_hotkey
);
1175 platform_driver_unregister(&fujitsupf_driver
);
1177 if (fujitsu
->bl_device
)
1178 backlight_device_unregister(fujitsu
->bl_device
);
1180 sysfs_remove_group(&fujitsu
->pf_device
->dev
.kobj
,
1181 &fujitsupf_attribute_group
);
1183 platform_device_unregister(fujitsu
->pf_device
);
1185 acpi_bus_unregister_driver(&acpi_fujitsu_driver
);
1189 pr_info("driver unloaded\n");
1192 module_init(fujitsu_init
);
1193 module_exit(fujitsu_cleanup
);
1195 module_param(use_alt_lcd_levels
, uint
, 0644);
1196 MODULE_PARM_DESC(use_alt_lcd_levels
,
1197 "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
1198 module_param(disable_brightness_adjust
, uint
, 0644);
1199 MODULE_PARM_DESC(disable_brightness_adjust
, "Disable brightness adjustment .");
1200 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
1201 module_param_named(debug
, dbg_level
, uint
, 0644);
1202 MODULE_PARM_DESC(debug
, "Sets debug level bit-mask");
1205 MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
1206 MODULE_DESCRIPTION("Fujitsu laptop extras support");
1207 MODULE_VERSION(FUJITSU_DRIVER_VERSION
);
1208 MODULE_LICENSE("GPL");
1210 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
1211 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
1212 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
1214 static struct pnp_device_id pnp_ids
[] __used
= {
1221 MODULE_DEVICE_TABLE(pnp
, pnp_ids
);