Merge branch 'bugzilla-13620' into release
[linux-2.6.git] / drivers / platform / x86 / fujitsu-laptop.c
1 /*-*-linux-c-*-*/
2
3 /*
4   Copyright (C) 2007,2008 Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
5   Copyright (C) 2008 Peter Gruber <nokos@gmx.net>
6   Copyright (C) 2008 Tony Vroon <tony@linx.net>
7   Based on earlier work:
8     Copyright (C) 2003 Shane Spencer <shane@bogomip.com>
9     Adrian Yee <brewt-fujitsu@brewt.org>
10
11   Templated from msi-laptop.c and thinkpad_acpi.c which is copyright
12   by its respective authors.
13
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.
18
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.
23
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
27   02110-1301, USA.
28  */
29
30 /*
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.
34  *
35  * This driver exports a few files in /sys/devices/platform/fujitsu-laptop/;
36  * others may be added at a later date.
37  *
38  *   lcd_level - Screen brightness: contains a single integer in the
39  *   range 0..7. (rw)
40  *
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/.
44  *
45  * Hotkeys present on certain Fujitsu laptops (eg: the S6xxx series) are
46  * also supported by this driver.
47  *
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
50  * YMMV.
51  *
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.
56  *
57  */
58
59 #include <linux/module.h>
60 #include <linux/kernel.h>
61 #include <linux/init.h>
62 #include <linux/acpi.h>
63 #include <linux/dmi.h>
64 #include <linux/backlight.h>
65 #include <linux/input.h>
66 #include <linux/kfifo.h>
67 #include <linux/video_output.h>
68 #include <linux/platform_device.h>
69 #ifdef CONFIG_LEDS_CLASS
70 #include <linux/leds.h>
71 #endif
72
73 #define FUJITSU_DRIVER_VERSION "0.5.0"
74
75 #define FUJITSU_LCD_N_LEVELS 8
76
77 #define ACPI_FUJITSU_CLASS              "fujitsu"
78 #define ACPI_FUJITSU_HID                "FUJ02B1"
79 #define ACPI_FUJITSU_DRIVER_NAME        "Fujitsu laptop FUJ02B1 ACPI brightness driver"
80 #define ACPI_FUJITSU_DEVICE_NAME        "Fujitsu FUJ02B1"
81 #define ACPI_FUJITSU_HOTKEY_HID         "FUJ02E3"
82 #define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver"
83 #define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3"
84
85 #define ACPI_FUJITSU_NOTIFY_CODE1     0x80
86
87 #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS     0x86
88 #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS     0x87
89
90 /* FUNC interface - command values */
91 #define FUNC_RFKILL     0x1000
92 #define FUNC_LEDS       0x1001
93 #define FUNC_BUTTONS    0x1002
94 #define FUNC_BACKLIGHT  0x1004
95
96 /* FUNC interface - responses */
97 #define UNSUPPORTED_CMD 0x80000000
98
99 #ifdef CONFIG_LEDS_CLASS
100 /* FUNC interface - LED control */
101 #define FUNC_LED_OFF    0x1
102 #define FUNC_LED_ON     0x30001
103 #define KEYBOARD_LAMPS  0x100
104 #define LOGOLAMP_POWERON 0x2000
105 #define LOGOLAMP_ALWAYS  0x4000
106 #endif
107
108 /* Hotkey details */
109 #define KEY1_CODE       0x410   /* codes for the keys in the GIRB register */
110 #define KEY2_CODE       0x411
111 #define KEY3_CODE       0x412
112 #define KEY4_CODE       0x413
113
114 #define MAX_HOTKEY_RINGBUFFER_SIZE 100
115 #define RINGBUFFERSIZE 40
116
117 /* Debugging */
118 #define FUJLAPTOP_LOG      ACPI_FUJITSU_HID ": "
119 #define FUJLAPTOP_ERR      KERN_ERR FUJLAPTOP_LOG
120 #define FUJLAPTOP_NOTICE   KERN_NOTICE FUJLAPTOP_LOG
121 #define FUJLAPTOP_INFO     KERN_INFO FUJLAPTOP_LOG
122 #define FUJLAPTOP_DEBUG    KERN_DEBUG FUJLAPTOP_LOG
123
124 #define FUJLAPTOP_DBG_ALL         0xffff
125 #define FUJLAPTOP_DBG_ERROR       0x0001
126 #define FUJLAPTOP_DBG_WARN        0x0002
127 #define FUJLAPTOP_DBG_INFO        0x0004
128 #define FUJLAPTOP_DBG_TRACE       0x0008
129
130 #define dbg_printk(a_dbg_level, format, arg...) \
131         do { if (dbg_level & a_dbg_level) \
132                 printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \
133         } while (0)
134 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
135 #define vdbg_printk(a_dbg_level, format, arg...) \
136         dbg_printk(a_dbg_level, format, ## arg)
137 #else
138 #define vdbg_printk(a_dbg_level, format, arg...)
139 #endif
140
141 /* Device controlling the backlight and associated keys */
142 struct fujitsu_t {
143         acpi_handle acpi_handle;
144         struct acpi_device *dev;
145         struct input_dev *input;
146         char phys[32];
147         struct backlight_device *bl_device;
148         struct platform_device *pf_device;
149         int keycode1, keycode2, keycode3, keycode4;
150
151         unsigned int max_brightness;
152         unsigned int brightness_changed;
153         unsigned int brightness_level;
154 };
155
156 static struct fujitsu_t *fujitsu;
157 static int use_alt_lcd_levels = -1;
158 static int disable_brightness_adjust = -1;
159
160 /* Device used to access other hotkeys on the laptop */
161 struct fujitsu_hotkey_t {
162         acpi_handle acpi_handle;
163         struct acpi_device *dev;
164         struct input_dev *input;
165         char phys[32];
166         struct platform_device *pf_device;
167         struct kfifo *fifo;
168         spinlock_t fifo_lock;
169         int rfkill_supported;
170         int rfkill_state;
171         int logolamp_registered;
172         int kblamps_registered;
173 };
174
175 static struct fujitsu_hotkey_t *fujitsu_hotkey;
176
177 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event);
178
179 #ifdef CONFIG_LEDS_CLASS
180 static enum led_brightness logolamp_get(struct led_classdev *cdev);
181 static void logolamp_set(struct led_classdev *cdev,
182                                enum led_brightness brightness);
183
184 struct led_classdev logolamp_led = {
185  .name = "fujitsu::logolamp",
186  .brightness_get = logolamp_get,
187  .brightness_set = logolamp_set
188 };
189
190 static enum led_brightness kblamps_get(struct led_classdev *cdev);
191 static void kblamps_set(struct led_classdev *cdev,
192                                enum led_brightness brightness);
193
194 struct led_classdev kblamps_led = {
195  .name = "fujitsu::kblamps",
196  .brightness_get = kblamps_get,
197  .brightness_set = kblamps_set
198 };
199 #endif
200
201 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
202 static u32 dbg_level = 0x03;
203 #endif
204
205 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event);
206
207 /* Fujitsu ACPI interface function */
208
209 static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
210 {
211         acpi_status status = AE_OK;
212         union acpi_object params[4] = {
213         { .type = ACPI_TYPE_INTEGER },
214         { .type = ACPI_TYPE_INTEGER },
215         { .type = ACPI_TYPE_INTEGER },
216         { .type = ACPI_TYPE_INTEGER }
217         };
218         struct acpi_object_list arg_list = { 4, &params[0] };
219         struct acpi_buffer output;
220         union acpi_object out_obj;
221         acpi_handle handle = NULL;
222
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");
227                 return -ENODEV;
228         }
229
230         params[0].integer.value = cmd;
231         params[1].integer.value = arg0;
232         params[2].integer.value = arg1;
233         params[3].integer.value = arg2;
234
235         output.length = sizeof(out_obj);
236         output.pointer = &out_obj;
237
238         status = acpi_evaluate_object(handle, NULL, &arg_list, &output);
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);
243                 return -ENODEV;
244         }
245
246         if (out_obj.type != ACPI_TYPE_INTEGER) {
247                 vdbg_printk(FUJLAPTOP_DBG_WARN,
248                         "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) did not "
249                         "return an integer\n",
250                         cmd, arg0, arg1, arg2);
251                 return -ENODEV;
252         }
253
254         vdbg_printk(FUJLAPTOP_DBG_TRACE,
255                 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
256                         cmd, arg0, arg1, arg2, (int)out_obj.integer.value);
257         return out_obj.integer.value;
258 }
259
260 #ifdef CONFIG_LEDS_CLASS
261 /* LED class callbacks */
262
263 static void logolamp_set(struct led_classdev *cdev,
264                                enum led_brightness brightness)
265 {
266         if (brightness >= LED_FULL) {
267                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
268                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON);
269         } else if (brightness >= LED_HALF) {
270                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
271                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF);
272         } else {
273                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF);
274         }
275 }
276
277 static void kblamps_set(struct led_classdev *cdev,
278                                enum led_brightness brightness)
279 {
280         if (brightness >= LED_FULL)
281                 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
282         else
283                 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
284 }
285
286 static enum led_brightness logolamp_get(struct led_classdev *cdev)
287 {
288         enum led_brightness brightness = LED_OFF;
289         int poweron, always;
290
291         poweron = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0);
292         if (poweron == FUNC_LED_ON) {
293                 brightness = LED_HALF;
294                 always = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0);
295                 if (always == FUNC_LED_ON)
296                         brightness = LED_FULL;
297         }
298         return brightness;
299 }
300
301 static enum led_brightness kblamps_get(struct led_classdev *cdev)
302 {
303         enum led_brightness brightness = LED_OFF;
304
305         if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON)
306                 brightness = LED_FULL;
307
308         return brightness;
309 }
310 #endif
311
312 /* Hardware access for LCD brightness control */
313
314 static int set_lcd_level(int level)
315 {
316         acpi_status status = AE_OK;
317         union acpi_object arg0 = { ACPI_TYPE_INTEGER };
318         struct acpi_object_list arg_list = { 1, &arg0 };
319         acpi_handle handle = NULL;
320
321         vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n",
322                     level);
323
324         if (level < 0 || level >= fujitsu->max_brightness)
325                 return -EINVAL;
326
327         if (!fujitsu)
328                 return -EINVAL;
329
330         status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle);
331         if (ACPI_FAILURE(status)) {
332                 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n");
333                 return -ENODEV;
334         }
335
336         arg0.integer.value = level;
337
338         status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
339         if (ACPI_FAILURE(status))
340                 return -ENODEV;
341
342         return 0;
343 }
344
345 static int set_lcd_level_alt(int level)
346 {
347         acpi_status status = AE_OK;
348         union acpi_object arg0 = { ACPI_TYPE_INTEGER };
349         struct acpi_object_list arg_list = { 1, &arg0 };
350         acpi_handle handle = NULL;
351
352         vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n",
353                     level);
354
355         if (level < 0 || level >= fujitsu->max_brightness)
356                 return -EINVAL;
357
358         if (!fujitsu)
359                 return -EINVAL;
360
361         status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle);
362         if (ACPI_FAILURE(status)) {
363                 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n");
364                 return -ENODEV;
365         }
366
367         arg0.integer.value = level;
368
369         status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
370         if (ACPI_FAILURE(status))
371                 return -ENODEV;
372
373         return 0;
374 }
375
376 static int get_lcd_level(void)
377 {
378         unsigned long long state = 0;
379         acpi_status status = AE_OK;
380
381         vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n");
382
383         status =
384             acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
385         if (status < 0)
386                 return status;
387
388         fujitsu->brightness_level = state & 0x0fffffff;
389
390         if (state & 0x80000000)
391                 fujitsu->brightness_changed = 1;
392         else
393                 fujitsu->brightness_changed = 0;
394
395         return fujitsu->brightness_level;
396 }
397
398 static int get_max_brightness(void)
399 {
400         unsigned long long state = 0;
401         acpi_status status = AE_OK;
402
403         vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n");
404
405         status =
406             acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state);
407         if (status < 0)
408                 return status;
409
410         fujitsu->max_brightness = state;
411
412         return fujitsu->max_brightness;
413 }
414
415 /* Backlight device stuff */
416
417 static int bl_get_brightness(struct backlight_device *b)
418 {
419         return get_lcd_level();
420 }
421
422 static int bl_update_status(struct backlight_device *b)
423 {
424         int ret;
425         if (b->props.power == 4)
426                 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
427         else
428                 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
429         if (ret != 0)
430                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
431                         "Unable to adjust backlight power, error code %i\n",
432                         ret);
433
434         if (use_alt_lcd_levels)
435                 ret = set_lcd_level_alt(b->props.brightness);
436         else
437                 ret = set_lcd_level(b->props.brightness);
438         if (ret != 0)
439                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
440                         "Unable to adjust LCD brightness, error code %i\n",
441                         ret);
442         return ret;
443 }
444
445 static struct backlight_ops fujitsubl_ops = {
446         .get_brightness = bl_get_brightness,
447         .update_status = bl_update_status,
448 };
449
450 /* Platform LCD brightness device */
451
452 static ssize_t
453 show_max_brightness(struct device *dev,
454                     struct device_attribute *attr, char *buf)
455 {
456
457         int ret;
458
459         ret = get_max_brightness();
460         if (ret < 0)
461                 return ret;
462
463         return sprintf(buf, "%i\n", ret);
464 }
465
466 static ssize_t
467 show_brightness_changed(struct device *dev,
468                         struct device_attribute *attr, char *buf)
469 {
470
471         int ret;
472
473         ret = fujitsu->brightness_changed;
474         if (ret < 0)
475                 return ret;
476
477         return sprintf(buf, "%i\n", ret);
478 }
479
480 static ssize_t show_lcd_level(struct device *dev,
481                               struct device_attribute *attr, char *buf)
482 {
483
484         int ret;
485
486         ret = get_lcd_level();
487         if (ret < 0)
488                 return ret;
489
490         return sprintf(buf, "%i\n", ret);
491 }
492
493 static ssize_t store_lcd_level(struct device *dev,
494                                struct device_attribute *attr, const char *buf,
495                                size_t count)
496 {
497
498         int level, ret;
499
500         if (sscanf(buf, "%i", &level) != 1
501             || (level < 0 || level >= fujitsu->max_brightness))
502                 return -EINVAL;
503
504         if (use_alt_lcd_levels)
505                 ret = set_lcd_level_alt(level);
506         else
507                 ret = set_lcd_level(level);
508         if (ret < 0)
509                 return ret;
510
511         ret = get_lcd_level();
512         if (ret < 0)
513                 return ret;
514
515         return count;
516 }
517
518 static ssize_t
519 ignore_store(struct device *dev,
520              struct device_attribute *attr, const char *buf, size_t count)
521 {
522         return count;
523 }
524
525 static ssize_t
526 show_lid_state(struct device *dev,
527                         struct device_attribute *attr, char *buf)
528 {
529         if (!(fujitsu_hotkey->rfkill_supported & 0x100))
530                 return sprintf(buf, "unknown\n");
531         if (fujitsu_hotkey->rfkill_state & 0x100)
532                 return sprintf(buf, "open\n");
533         else
534                 return sprintf(buf, "closed\n");
535 }
536
537 static ssize_t
538 show_dock_state(struct device *dev,
539                         struct device_attribute *attr, char *buf)
540 {
541         if (!(fujitsu_hotkey->rfkill_supported & 0x200))
542                 return sprintf(buf, "unknown\n");
543         if (fujitsu_hotkey->rfkill_state & 0x200)
544                 return sprintf(buf, "docked\n");
545         else
546                 return sprintf(buf, "undocked\n");
547 }
548
549 static ssize_t
550 show_radios_state(struct device *dev,
551                         struct device_attribute *attr, char *buf)
552 {
553         if (!(fujitsu_hotkey->rfkill_supported & 0x20))
554                 return sprintf(buf, "unknown\n");
555         if (fujitsu_hotkey->rfkill_state & 0x20)
556                 return sprintf(buf, "on\n");
557         else
558                 return sprintf(buf, "killed\n");
559 }
560
561 static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store);
562 static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed,
563                    ignore_store);
564 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
565 static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store);
566 static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store);
567 static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store);
568
569 static struct attribute *fujitsupf_attributes[] = {
570         &dev_attr_brightness_changed.attr,
571         &dev_attr_max_brightness.attr,
572         &dev_attr_lcd_level.attr,
573         &dev_attr_lid.attr,
574         &dev_attr_dock.attr,
575         &dev_attr_radios.attr,
576         NULL
577 };
578
579 static struct attribute_group fujitsupf_attribute_group = {
580         .attrs = fujitsupf_attributes
581 };
582
583 static struct platform_driver fujitsupf_driver = {
584         .driver = {
585                    .name = "fujitsu-laptop",
586                    .owner = THIS_MODULE,
587                    }
588 };
589
590 static void dmi_check_cb_common(const struct dmi_system_id *id)
591 {
592         acpi_handle handle;
593         printk(KERN_INFO "fujitsu-laptop: Identified laptop model '%s'.\n",
594                id->ident);
595         if (use_alt_lcd_levels == -1) {
596                 if (ACPI_SUCCESS(acpi_get_handle(NULL,
597                                 "\\_SB.PCI0.LPCB.FJEX.SBL2", &handle)))
598                         use_alt_lcd_levels = 1;
599                 else
600                         use_alt_lcd_levels = 0;
601                 vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as "
602                         "%i\n", use_alt_lcd_levels);
603         }
604 }
605
606 static int dmi_check_cb_s6410(const struct dmi_system_id *id)
607 {
608         dmi_check_cb_common(id);
609         fujitsu->keycode1 = KEY_SCREENLOCK;     /* "Lock" */
610         fujitsu->keycode2 = KEY_HELP;   /* "Mobility Center" */
611         return 0;
612 }
613
614 static int dmi_check_cb_s6420(const struct dmi_system_id *id)
615 {
616         dmi_check_cb_common(id);
617         fujitsu->keycode1 = KEY_SCREENLOCK;     /* "Lock" */
618         fujitsu->keycode2 = KEY_HELP;   /* "Mobility Center" */
619         return 0;
620 }
621
622 static int dmi_check_cb_p8010(const struct dmi_system_id *id)
623 {
624         dmi_check_cb_common(id);
625         fujitsu->keycode1 = KEY_HELP;   /* "Support" */
626         fujitsu->keycode3 = KEY_SWITCHVIDEOMODE;        /* "Presentation" */
627         fujitsu->keycode4 = KEY_WWW;    /* "Internet" */
628         return 0;
629 }
630
631 static struct dmi_system_id fujitsu_dmi_table[] = {
632         {
633          .ident = "Fujitsu Siemens S6410",
634          .matches = {
635                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
636                      DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"),
637                      },
638          .callback = dmi_check_cb_s6410},
639         {
640          .ident = "Fujitsu Siemens S6420",
641          .matches = {
642                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
643                      DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"),
644                      },
645          .callback = dmi_check_cb_s6420},
646         {
647          .ident = "Fujitsu LifeBook P8010",
648          .matches = {
649                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
650                      DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"),
651                      },
652          .callback = dmi_check_cb_p8010},
653         {}
654 };
655
656 /* ACPI device for LCD brightness control */
657
658 static int acpi_fujitsu_add(struct acpi_device *device)
659 {
660         acpi_handle handle;
661         int result = 0;
662         int state = 0;
663         struct input_dev *input;
664         int error;
665
666         if (!device)
667                 return -EINVAL;
668
669         fujitsu->acpi_handle = device->handle;
670         sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME);
671         sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
672         device->driver_data = fujitsu;
673
674         fujitsu->input = input = input_allocate_device();
675         if (!input) {
676                 error = -ENOMEM;
677                 goto err_stop;
678         }
679
680         snprintf(fujitsu->phys, sizeof(fujitsu->phys),
681                  "%s/video/input0", acpi_device_hid(device));
682
683         input->name = acpi_device_name(device);
684         input->phys = fujitsu->phys;
685         input->id.bustype = BUS_HOST;
686         input->id.product = 0x06;
687         input->dev.parent = &device->dev;
688         input->evbit[0] = BIT(EV_KEY);
689         set_bit(KEY_BRIGHTNESSUP, input->keybit);
690         set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
691         set_bit(KEY_UNKNOWN, input->keybit);
692
693         error = input_register_device(input);
694         if (error)
695                 goto err_free_input_dev;
696
697         result = acpi_bus_get_power(fujitsu->acpi_handle, &state);
698         if (result) {
699                 printk(KERN_ERR "Error reading power state\n");
700                 goto end;
701         }
702
703         printk(KERN_INFO "ACPI: %s [%s] (%s)\n",
704                acpi_device_name(device), acpi_device_bid(device),
705                !device->power.state ? "on" : "off");
706
707         fujitsu->dev = device;
708
709         if (ACPI_SUCCESS
710             (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
711                 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
712                 if (ACPI_FAILURE
713                     (acpi_evaluate_object
714                      (device->handle, METHOD_NAME__INI, NULL, NULL)))
715                         printk(KERN_ERR "_INI Method failed\n");
716         }
717
718         /* do config (detect defaults) */
719         use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
720         disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
721         vdbg_printk(FUJLAPTOP_DBG_INFO,
722                     "config: [alt interface: %d], [adjust disable: %d]\n",
723                     use_alt_lcd_levels, disable_brightness_adjust);
724
725         if (get_max_brightness() <= 0)
726                 fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS;
727         get_lcd_level();
728
729         return result;
730
731 end:
732 err_free_input_dev:
733         input_free_device(input);
734 err_stop:
735
736         return result;
737 }
738
739 static int acpi_fujitsu_remove(struct acpi_device *device, int type)
740 {
741         struct fujitsu_t *fujitsu = NULL;
742
743         if (!device || !acpi_driver_data(device))
744                 return -EINVAL;
745
746         fujitsu = acpi_driver_data(device);
747
748         if (!device || !acpi_driver_data(device))
749                 return -EINVAL;
750
751         fujitsu->acpi_handle = NULL;
752
753         return 0;
754 }
755
756 /* Brightness notify */
757
758 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
759 {
760         struct input_dev *input;
761         int keycode;
762         int oldb, newb;
763
764         input = fujitsu->input;
765
766         switch (event) {
767         case ACPI_FUJITSU_NOTIFY_CODE1:
768                 keycode = 0;
769                 oldb = fujitsu->brightness_level;
770                 get_lcd_level();
771                 newb = fujitsu->brightness_level;
772
773                 vdbg_printk(FUJLAPTOP_DBG_TRACE,
774                             "brightness button event [%i -> %i (%i)]\n",
775                             oldb, newb, fujitsu->brightness_changed);
776
777                 if (oldb < newb) {
778                         if (disable_brightness_adjust != 1) {
779                                 if (use_alt_lcd_levels)
780                                         set_lcd_level_alt(newb);
781                                 else
782                                         set_lcd_level(newb);
783                         }
784                         acpi_bus_generate_proc_event(fujitsu->dev,
785                                 ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0);
786                         keycode = KEY_BRIGHTNESSUP;
787                 } else if (oldb > newb) {
788                         if (disable_brightness_adjust != 1) {
789                                 if (use_alt_lcd_levels)
790                                         set_lcd_level_alt(newb);
791                                 else
792                                         set_lcd_level(newb);
793                         }
794                         acpi_bus_generate_proc_event(fujitsu->dev,
795                                 ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0);
796                         keycode = KEY_BRIGHTNESSDOWN;
797                 }
798                 break;
799         default:
800                 keycode = KEY_UNKNOWN;
801                 vdbg_printk(FUJLAPTOP_DBG_WARN,
802                             "unsupported event [0x%x]\n", event);
803                 break;
804         }
805
806         if (keycode != 0) {
807                 input_report_key(input, keycode, 1);
808                 input_sync(input);
809                 input_report_key(input, keycode, 0);
810                 input_sync(input);
811         }
812 }
813
814 /* ACPI device for hotkey handling */
815
816 static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
817 {
818         acpi_handle handle;
819         int result = 0;
820         int state = 0;
821         struct input_dev *input;
822         int error;
823         int i;
824
825         if (!device)
826                 return -EINVAL;
827
828         fujitsu_hotkey->acpi_handle = device->handle;
829         sprintf(acpi_device_name(device), "%s",
830                 ACPI_FUJITSU_HOTKEY_DEVICE_NAME);
831         sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
832         device->driver_data = fujitsu_hotkey;
833
834         /* kfifo */
835         spin_lock_init(&fujitsu_hotkey->fifo_lock);
836         fujitsu_hotkey->fifo =
837             kfifo_alloc(RINGBUFFERSIZE * sizeof(int), GFP_KERNEL,
838                         &fujitsu_hotkey->fifo_lock);
839         if (IS_ERR(fujitsu_hotkey->fifo)) {
840                 printk(KERN_ERR "kfifo_alloc failed\n");
841                 error = PTR_ERR(fujitsu_hotkey->fifo);
842                 goto err_stop;
843         }
844
845         fujitsu_hotkey->input = input = input_allocate_device();
846         if (!input) {
847                 error = -ENOMEM;
848                 goto err_free_fifo;
849         }
850
851         snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys),
852                  "%s/video/input0", acpi_device_hid(device));
853
854         input->name = acpi_device_name(device);
855         input->phys = fujitsu_hotkey->phys;
856         input->id.bustype = BUS_HOST;
857         input->id.product = 0x06;
858         input->dev.parent = &device->dev;
859
860         set_bit(EV_KEY, input->evbit);
861         set_bit(fujitsu->keycode1, input->keybit);
862         set_bit(fujitsu->keycode2, input->keybit);
863         set_bit(fujitsu->keycode3, input->keybit);
864         set_bit(fujitsu->keycode4, input->keybit);
865         set_bit(KEY_UNKNOWN, input->keybit);
866
867         error = input_register_device(input);
868         if (error)
869                 goto err_free_input_dev;
870
871         result = acpi_bus_get_power(fujitsu_hotkey->acpi_handle, &state);
872         if (result) {
873                 printk(KERN_ERR "Error reading power state\n");
874                 goto end;
875         }
876
877         printk(KERN_INFO "ACPI: %s [%s] (%s)\n",
878                acpi_device_name(device), acpi_device_bid(device),
879                !device->power.state ? "on" : "off");
880
881         fujitsu_hotkey->dev = device;
882
883         if (ACPI_SUCCESS
884             (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
885                 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
886                 if (ACPI_FAILURE
887                     (acpi_evaluate_object
888                      (device->handle, METHOD_NAME__INI, NULL, NULL)))
889                         printk(KERN_ERR "_INI Method failed\n");
890         }
891
892         i = 0;
893         while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0
894                 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE)
895                 ; /* No action, result is discarded */
896         vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i);
897
898         fujitsu_hotkey->rfkill_supported =
899                 call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0);
900
901         /* Make sure our bitmask of supported functions is cleared if the
902            RFKILL function block is not implemented, like on the S7020. */
903         if (fujitsu_hotkey->rfkill_supported == UNSUPPORTED_CMD)
904                 fujitsu_hotkey->rfkill_supported = 0;
905
906         if (fujitsu_hotkey->rfkill_supported)
907                 fujitsu_hotkey->rfkill_state =
908                         call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
909
910         /* Suspect this is a keymap of the application panel, print it */
911         printk(KERN_INFO "fujitsu-laptop: BTNI: [0x%x]\n",
912                 call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
913
914         #ifdef CONFIG_LEDS_CLASS
915         if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
916                 result = led_classdev_register(&fujitsu->pf_device->dev,
917                                                 &logolamp_led);
918                 if (result == 0) {
919                         fujitsu_hotkey->logolamp_registered = 1;
920                 } else {
921                         printk(KERN_ERR "fujitsu-laptop: Could not register "
922                         "LED handler for logo lamp, error %i\n", result);
923                 }
924         }
925
926         if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
927            (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
928                 result = led_classdev_register(&fujitsu->pf_device->dev,
929                                                 &kblamps_led);
930                 if (result == 0) {
931                         fujitsu_hotkey->kblamps_registered = 1;
932                 } else {
933                         printk(KERN_ERR "fujitsu-laptop: Could not register "
934                         "LED handler for keyboard lamps, error %i\n", result);
935                 }
936         }
937         #endif
938
939         return result;
940
941 end:
942 err_free_input_dev:
943         input_free_device(input);
944 err_free_fifo:
945         kfifo_free(fujitsu_hotkey->fifo);
946 err_stop:
947
948         return result;
949 }
950
951 static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type)
952 {
953         struct fujitsu_hotkey_t *fujitsu_hotkey = NULL;
954
955         if (!device || !acpi_driver_data(device))
956                 return -EINVAL;
957
958         fujitsu_hotkey = acpi_driver_data(device);
959
960         fujitsu_hotkey->acpi_handle = NULL;
961
962         kfifo_free(fujitsu_hotkey->fifo);
963
964         return 0;
965 }
966
967 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event)
968 {
969         struct input_dev *input;
970         int keycode, keycode_r;
971         unsigned int irb = 1;
972         int i, status;
973
974         input = fujitsu_hotkey->input;
975
976         if (fujitsu_hotkey->rfkill_supported)
977                 fujitsu_hotkey->rfkill_state =
978                         call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
979
980         switch (event) {
981         case ACPI_FUJITSU_NOTIFY_CODE1:
982                 i = 0;
983                 while ((irb =
984                         call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0
985                                 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
986                         switch (irb & 0x4ff) {
987                         case KEY1_CODE:
988                                 keycode = fujitsu->keycode1;
989                                 break;
990                         case KEY2_CODE:
991                                 keycode = fujitsu->keycode2;
992                                 break;
993                         case KEY3_CODE:
994                                 keycode = fujitsu->keycode3;
995                                 break;
996                         case KEY4_CODE:
997                                 keycode = fujitsu->keycode4;
998                                 break;
999                         case 0:
1000                                 keycode = 0;
1001                                 break;
1002                         default:
1003                                 vdbg_printk(FUJLAPTOP_DBG_WARN,
1004                                             "Unknown GIRB result [%x]\n", irb);
1005                                 keycode = -1;
1006                                 break;
1007                         }
1008                         if (keycode > 0) {
1009                                 vdbg_printk(FUJLAPTOP_DBG_TRACE,
1010                                         "Push keycode into ringbuffer [%d]\n",
1011                                         keycode);
1012                                 status = kfifo_put(fujitsu_hotkey->fifo,
1013                                                    (unsigned char *)&keycode,
1014                                                    sizeof(keycode));
1015                                 if (status != sizeof(keycode)) {
1016                                         vdbg_printk(FUJLAPTOP_DBG_WARN,
1017                                             "Could not push keycode [0x%x]\n",
1018                                             keycode);
1019                                 } else {
1020                                         input_report_key(input, keycode, 1);
1021                                         input_sync(input);
1022                                 }
1023                         } else if (keycode == 0) {
1024                                 while ((status =
1025                                         kfifo_get
1026                                         (fujitsu_hotkey->fifo, (unsigned char *)
1027                                          &keycode_r,
1028                                          sizeof
1029                                          (keycode_r))) == sizeof(keycode_r)) {
1030                                         input_report_key(input, keycode_r, 0);
1031                                         input_sync(input);
1032                                         vdbg_printk(FUJLAPTOP_DBG_TRACE,
1033                                           "Pop keycode from ringbuffer [%d]\n",
1034                                           keycode_r);
1035                                 }
1036                         }
1037                 }
1038
1039                 break;
1040         default:
1041                 keycode = KEY_UNKNOWN;
1042                 vdbg_printk(FUJLAPTOP_DBG_WARN,
1043                             "Unsupported event [0x%x]\n", event);
1044                 input_report_key(input, keycode, 1);
1045                 input_sync(input);
1046                 input_report_key(input, keycode, 0);
1047                 input_sync(input);
1048                 break;
1049         }
1050 }
1051
1052 /* Initialization */
1053
1054 static const struct acpi_device_id fujitsu_device_ids[] = {
1055         {ACPI_FUJITSU_HID, 0},
1056         {"", 0},
1057 };
1058
1059 static struct acpi_driver acpi_fujitsu_driver = {
1060         .name = ACPI_FUJITSU_DRIVER_NAME,
1061         .class = ACPI_FUJITSU_CLASS,
1062         .ids = fujitsu_device_ids,
1063         .ops = {
1064                 .add = acpi_fujitsu_add,
1065                 .remove = acpi_fujitsu_remove,
1066                 .notify = acpi_fujitsu_notify,
1067                 },
1068 };
1069
1070 static const struct acpi_device_id fujitsu_hotkey_device_ids[] = {
1071         {ACPI_FUJITSU_HOTKEY_HID, 0},
1072         {"", 0},
1073 };
1074
1075 static struct acpi_driver acpi_fujitsu_hotkey_driver = {
1076         .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME,
1077         .class = ACPI_FUJITSU_CLASS,
1078         .ids = fujitsu_hotkey_device_ids,
1079         .ops = {
1080                 .add = acpi_fujitsu_hotkey_add,
1081                 .remove = acpi_fujitsu_hotkey_remove,
1082                 .notify = acpi_fujitsu_hotkey_notify,
1083                 },
1084 };
1085
1086 static int __init fujitsu_init(void)
1087 {
1088         int ret, result, max_brightness;
1089
1090         if (acpi_disabled)
1091                 return -ENODEV;
1092
1093         fujitsu = kmalloc(sizeof(struct fujitsu_t), GFP_KERNEL);
1094         if (!fujitsu)
1095                 return -ENOMEM;
1096         memset(fujitsu, 0, sizeof(struct fujitsu_t));
1097         fujitsu->keycode1 = KEY_PROG1;
1098         fujitsu->keycode2 = KEY_PROG2;
1099         fujitsu->keycode3 = KEY_PROG3;
1100         fujitsu->keycode4 = KEY_PROG4;
1101         dmi_check_system(fujitsu_dmi_table);
1102
1103         result = acpi_bus_register_driver(&acpi_fujitsu_driver);
1104         if (result < 0) {
1105                 ret = -ENODEV;
1106                 goto fail_acpi;
1107         }
1108
1109         /* Register platform stuff */
1110
1111         fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1);
1112         if (!fujitsu->pf_device) {
1113                 ret = -ENOMEM;
1114                 goto fail_platform_driver;
1115         }
1116
1117         ret = platform_device_add(fujitsu->pf_device);
1118         if (ret)
1119                 goto fail_platform_device1;
1120
1121         ret =
1122             sysfs_create_group(&fujitsu->pf_device->dev.kobj,
1123                                &fujitsupf_attribute_group);
1124         if (ret)
1125                 goto fail_platform_device2;
1126
1127         /* Register backlight stuff */
1128
1129         if (!acpi_video_backlight_support()) {
1130                 fujitsu->bl_device =
1131                         backlight_device_register("fujitsu-laptop", NULL, NULL,
1132                                                   &fujitsubl_ops);
1133                 if (IS_ERR(fujitsu->bl_device))
1134                         return PTR_ERR(fujitsu->bl_device);
1135                 max_brightness = fujitsu->max_brightness;
1136                 fujitsu->bl_device->props.max_brightness = max_brightness - 1;
1137                 fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
1138         }
1139
1140         ret = platform_driver_register(&fujitsupf_driver);
1141         if (ret)
1142                 goto fail_backlight;
1143
1144         /* Register hotkey driver */
1145
1146         fujitsu_hotkey = kmalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL);
1147         if (!fujitsu_hotkey) {
1148                 ret = -ENOMEM;
1149                 goto fail_hotkey;
1150         }
1151         memset(fujitsu_hotkey, 0, sizeof(struct fujitsu_hotkey_t));
1152
1153         result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver);
1154         if (result < 0) {
1155                 ret = -ENODEV;
1156                 goto fail_hotkey1;
1157         }
1158
1159         /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
1160
1161         if (!acpi_video_backlight_support()) {
1162                 if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3)
1163                         fujitsu->bl_device->props.power = 4;
1164                 else
1165                         fujitsu->bl_device->props.power = 0;
1166         }
1167
1168         printk(KERN_INFO "fujitsu-laptop: driver " FUJITSU_DRIVER_VERSION
1169                " successfully loaded.\n");
1170
1171         return 0;
1172
1173 fail_hotkey1:
1174
1175         kfree(fujitsu_hotkey);
1176
1177 fail_hotkey:
1178
1179         platform_driver_unregister(&fujitsupf_driver);
1180
1181 fail_backlight:
1182
1183         if (fujitsu->bl_device)
1184                 backlight_device_unregister(fujitsu->bl_device);
1185
1186 fail_platform_device2:
1187
1188         platform_device_del(fujitsu->pf_device);
1189
1190 fail_platform_device1:
1191
1192         platform_device_put(fujitsu->pf_device);
1193
1194 fail_platform_driver:
1195
1196         acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1197
1198 fail_acpi:
1199
1200         kfree(fujitsu);
1201
1202         return ret;
1203 }
1204
1205 static void __exit fujitsu_cleanup(void)
1206 {
1207         #ifdef CONFIG_LEDS_CLASS
1208         if (fujitsu_hotkey->logolamp_registered != 0)
1209                 led_classdev_unregister(&logolamp_led);
1210
1211         if (fujitsu_hotkey->kblamps_registered != 0)
1212                 led_classdev_unregister(&kblamps_led);
1213         #endif
1214
1215         sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1216                            &fujitsupf_attribute_group);
1217         platform_device_unregister(fujitsu->pf_device);
1218         platform_driver_unregister(&fujitsupf_driver);
1219         if (fujitsu->bl_device)
1220                 backlight_device_unregister(fujitsu->bl_device);
1221
1222         acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1223
1224         kfree(fujitsu);
1225
1226         acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver);
1227
1228         kfree(fujitsu_hotkey);
1229
1230         printk(KERN_INFO "fujitsu-laptop: driver unloaded.\n");
1231 }
1232
1233 module_init(fujitsu_init);
1234 module_exit(fujitsu_cleanup);
1235
1236 module_param(use_alt_lcd_levels, uint, 0644);
1237 MODULE_PARM_DESC(use_alt_lcd_levels,
1238                  "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
1239 module_param(disable_brightness_adjust, uint, 0644);
1240 MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment .");
1241 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
1242 module_param_named(debug, dbg_level, uint, 0644);
1243 MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
1244 #endif
1245
1246 MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
1247 MODULE_DESCRIPTION("Fujitsu laptop extras support");
1248 MODULE_VERSION(FUJITSU_DRIVER_VERSION);
1249 MODULE_LICENSE("GPL");
1250
1251 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
1252 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
1253 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
1254
1255 static struct pnp_device_id pnp_ids[] = {
1256         {.id = "FUJ02bf"},
1257         {.id = "FUJ02B1"},
1258         {.id = "FUJ02E3"},
1259         {.id = ""}
1260 };
1261
1262 MODULE_DEVICE_TABLE(pnp, pnp_ids);