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 #include <linux/slab.h>
  70 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
  71 #include <linux/leds.h>
  72 #endif
  73
  74 #define FUJITSU_DRIVER_VERSION "0.6.0"
  75
  76 #define FUJITSU_LCD_N_LEVELS 8
  77
  78 #define ACPI_FUJITSU_CLASS              "fujitsu"
  79 #define ACPI_FUJITSU_HID                "FUJ02B1"
  80 #define ACPI_FUJITSU_DRIVER_NAME        "Fujitsu laptop FUJ02B1 ACPI brightness driver"
  81 #define ACPI_FUJITSU_DEVICE_NAME        "Fujitsu FUJ02B1"
  82 #define ACPI_FUJITSU_HOTKEY_HID         "FUJ02E3"
  83 #define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver"
  84 #define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3"
  85
  86 #define ACPI_FUJITSU_NOTIFY_CODE1     0x80
  87
  88 #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS     0x86
  89 #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS     0x87
  90
  91 /* FUNC interface - command values */
  92 #define FUNC_RFKILL     0x1000
  93 #define FUNC_LEDS       0x1001
  94 #define FUNC_BUTTONS    0x1002
  95 #define FUNC_BACKLIGHT  0x1004
  96
  97 /* FUNC interface - responses */
  98 #define UNSUPPORTED_CMD 0x80000000
  99
 100 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 101 /* FUNC interface - LED control */
 102 #define FUNC_LED_OFF    0x1
 103 #define FUNC_LED_ON     0x30001
 104 #define KEYBOARD_LAMPS  0x100
 105 #define LOGOLAMP_POWERON 0x2000
 106 #define LOGOLAMP_ALWAYS  0x4000
 107 #endif
 108
 109 /* Hotkey details */
 110 #define KEY1_CODE       0x410   /* codes for the keys in the GIRB register */
 111 #define KEY2_CODE       0x411
 112 #define KEY3_CODE       0x412
 113 #define KEY4_CODE       0x413
 114
 115 #define MAX_HOTKEY_RINGBUFFER_SIZE 100
 116 #define RINGBUFFERSIZE 40
 117
 118 /* Debugging */
 119 #define FUJLAPTOP_LOG      ACPI_FUJITSU_HID ": "
 120 #define FUJLAPTOP_ERR      KERN_ERR FUJLAPTOP_LOG
 121 #define FUJLAPTOP_NOTICE   KERN_NOTICE FUJLAPTOP_LOG
 122 #define FUJLAPTOP_INFO     KERN_INFO FUJLAPTOP_LOG
 123 #define FUJLAPTOP_DEBUG    KERN_DEBUG FUJLAPTOP_LOG
 124
 125 #define FUJLAPTOP_DBG_ALL         0xffff
 126 #define FUJLAPTOP_DBG_ERROR       0x0001
 127 #define FUJLAPTOP_DBG_WARN        0x0002
 128 #define FUJLAPTOP_DBG_INFO        0x0004
 129 #define FUJLAPTOP_DBG_TRACE       0x0008
 130
 131 #define dbg_printk(a_dbg_level, format, arg...) \
 132         do { if (dbg_level & a_dbg_level) \
 133                 printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \
 134         } while (0)
 135 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
 136 #define vdbg_printk(a_dbg_level, format, arg...) \
 137         dbg_printk(a_dbg_level, format, ## arg)
 138 #else
 139 #define vdbg_printk(a_dbg_level, format, arg...)
 140 #endif
 141
 142 /* Device controlling the backlight and associated keys */
 143 struct fujitsu_t {
 144         acpi_handle acpi_handle;
 145         struct acpi_device *dev;
 146         struct input_dev *input;
 147         char phys[32];
 148         struct backlight_device *bl_device;
 149         struct platform_device *pf_device;
 150         int keycode1, keycode2, keycode3, keycode4;
 151
 152         unsigned int max_brightness;
 153         unsigned int brightness_changed;
 154         unsigned int brightness_level;
 155 };
 156
 157 static struct fujitsu_t *fujitsu;
 158 static int use_alt_lcd_levels = -1;
 159 static int disable_brightness_adjust = -1;
 160
 161 /* Device used to access other hotkeys on the laptop */
 162 struct fujitsu_hotkey_t {
 163         acpi_handle acpi_handle;
 164         struct acpi_device *dev;
 165         struct input_dev *input;
 166         char phys[32];
 167         struct platform_device *pf_device;
 168         struct kfifo fifo;
 169         spinlock_t fifo_lock;
 170         int rfkill_supported;
 171         int rfkill_state;
 172         int logolamp_registered;
 173         int kblamps_registered;
 174 };
 175
 176 static struct fujitsu_hotkey_t *fujitsu_hotkey;
 177
 178 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event);
 179
 180 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 181 static enum led_brightness logolamp_get(struct led_classdev *cdev);
 182 static void logolamp_set(struct led_classdev *cdev,
 183                                enum led_brightness brightness);
 184
 185 struct led_classdev logolamp_led = {
 186  .name = "fujitsu::logolamp",
 187  .brightness_get = logolamp_get,
 188  .brightness_set = logolamp_set
 189 };
 190
 191 static enum led_brightness kblamps_get(struct led_classdev *cdev);
 192 static void kblamps_set(struct led_classdev *cdev,
 193                                enum led_brightness brightness);
 194
 195 struct led_classdev kblamps_led = {
 196  .name = "fujitsu::kblamps",
 197  .brightness_get = kblamps_get,
 198  .brightness_set = kblamps_set
 199 };
 200 #endif
 201
 202 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
 203 static u32 dbg_level = 0x03;
 204 #endif
 205
 206 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event);
 207
 208 /* Fujitsu ACPI interface function */
 209
 210 static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
 211 {
 212         acpi_status status = AE_OK;
 213         union acpi_object params[4] = {
 214         { .type = ACPI_TYPE_INTEGER },
 215         { .type = ACPI_TYPE_INTEGER },
 216         { .type = ACPI_TYPE_INTEGER },
 217         { .type = ACPI_TYPE_INTEGER }
 218         };
 219         struct acpi_object_list arg_list = { 4, &params[0] };
 220         struct acpi_buffer output;
 221         union acpi_object out_obj;
 222         acpi_handle handle = NULL;
 223
 224         status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle);
 225         if (ACPI_FAILURE(status)) {
 226                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 227                                 "FUNC interface is not present\n");
 228                 return -ENODEV;
 229         }
 230
 231         params[0].integer.value = cmd;
 232         params[1].integer.value = arg0;
 233         params[2].integer.value = arg1;
 234         params[3].integer.value = arg2;
 235
 236         output.length = sizeof(out_obj);
 237         output.pointer = &out_obj;
 238
 239         status = acpi_evaluate_object(handle, NULL, &arg_list, &output);
 240         if (ACPI_FAILURE(status)) {
 241                 vdbg_printk(FUJLAPTOP_DBG_WARN,
 242                         "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
 243                                 cmd, arg0, arg1, arg2);
 244                 return -ENODEV;
 245         }
 246
 247         if (out_obj.type != ACPI_TYPE_INTEGER) {
 248                 vdbg_printk(FUJLAPTOP_DBG_WARN,
 249                         "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) did not "
 250                         "return an integer\n",
 251                         cmd, arg0, arg1, arg2);
 252                 return -ENODEV;
 253         }
 254
 255         vdbg_printk(FUJLAPTOP_DBG_TRACE,
 256                 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
 257                         cmd, arg0, arg1, arg2, (int)out_obj.integer.value);
 258         return out_obj.integer.value;
 259 }
 260
 261 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 262 /* LED class callbacks */
 263
 264 static void logolamp_set(struct led_classdev *cdev,
 265                                enum led_brightness brightness)
 266 {
 267         if (brightness >= LED_FULL) {
 268                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
 269                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON);
 270         } else if (brightness >= LED_HALF) {
 271                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
 272                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF);
 273         } else {
 274                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF);
 275         }
 276 }
 277
 278 static void kblamps_set(struct led_classdev *cdev,
 279                                enum led_brightness brightness)
 280 {
 281         if (brightness >= LED_FULL)
 282                 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
 283         else
 284                 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
 285 }
 286
 287 static enum led_brightness logolamp_get(struct led_classdev *cdev)
 288 {
 289         enum led_brightness brightness = LED_OFF;
 290         int poweron, always;
 291
 292         poweron = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0);
 293         if (poweron == FUNC_LED_ON) {
 294                 brightness = LED_HALF;
 295                 always = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0);
 296                 if (always == FUNC_LED_ON)
 297                         brightness = LED_FULL;
 298         }
 299         return brightness;
 300 }
 301
 302 static enum led_brightness kblamps_get(struct led_classdev *cdev)
 303 {
 304         enum led_brightness brightness = LED_OFF;
 305
 306         if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON)
 307                 brightness = LED_FULL;
 308
 309         return brightness;
 310 }
 311 #endif
 312
 313 /* Hardware access for LCD brightness control */
 314
 315 static int set_lcd_level(int level)
 316 {
 317         acpi_status status = AE_OK;
 318         union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 319         struct acpi_object_list arg_list = { 1, &arg0 };
 320         acpi_handle handle = NULL;
 321
 322         vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n",
 323                     level);
 324
 325         if (level < 0 || level >= fujitsu->max_brightness)
 326                 return -EINVAL;
 327
 328         status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle);
 329         if (ACPI_FAILURE(status)) {
 330                 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n");
 331                 return -ENODEV;
 332         }
 333
 334         arg0.integer.value = level;
 335
 336         status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
 337         if (ACPI_FAILURE(status))
 338                 return -ENODEV;
 339
 340         return 0;
 341 }
 342
 343 static int set_lcd_level_alt(int level)
 344 {
 345         acpi_status status = AE_OK;
 346         union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 347         struct acpi_object_list arg_list = { 1, &arg0 };
 348         acpi_handle handle = NULL;
 349
 350         vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n",
 351                     level);
 352
 353         if (level < 0 || level >= fujitsu->max_brightness)
 354                 return -EINVAL;
 355
 356         status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle);
 357         if (ACPI_FAILURE(status)) {
 358                 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n");
 359                 return -ENODEV;
 360         }
 361
 362         arg0.integer.value = level;
 363
 364         status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
 365         if (ACPI_FAILURE(status))
 366                 return -ENODEV;
 367
 368         return 0;
 369 }
 370
 371 static int get_lcd_level(void)
 372 {
 373         unsigned long long state = 0;
 374         acpi_status status = AE_OK;
 375
 376         vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n");
 377
 378         status =
 379             acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
 380         if (ACPI_FAILURE(status))
 381                 return 0;
 382
 383         fujitsu->brightness_level = state & 0x0fffffff;
 384
 385         if (state & 0x80000000)
 386                 fujitsu->brightness_changed = 1;
 387         else
 388                 fujitsu->brightness_changed = 0;
 389
 390         return fujitsu->brightness_level;
 391 }
 392
 393 static int get_max_brightness(void)
 394 {
 395         unsigned long long state = 0;
 396         acpi_status status = AE_OK;
 397
 398         vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n");
 399
 400         status =
 401             acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state);
 402         if (ACPI_FAILURE(status))
 403                 return -1;
 404
 405         fujitsu->max_brightness = state;
 406
 407         return fujitsu->max_brightness;
 408 }
 409
 410 /* Backlight device stuff */
 411
 412 static int bl_get_brightness(struct backlight_device *b)
 413 {
 414         return get_lcd_level();
 415 }
 416
 417 static int bl_update_status(struct backlight_device *b)
 418 {
 419         int ret;
 420         if (b->props.power == 4)
 421                 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
 422         else
 423                 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
 424         if (ret != 0)
 425                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 426                         "Unable to adjust backlight power, error code %i\n",
 427                         ret);
 428
 429         if (use_alt_lcd_levels)
 430                 ret = set_lcd_level_alt(b->props.brightness);
 431         else
 432                 ret = set_lcd_level(b->props.brightness);
 433         if (ret != 0)
 434                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 435                         "Unable to adjust LCD brightness, error code %i\n",
 436                         ret);
 437         return ret;
 438 }
 439
 440 static struct backlight_ops fujitsubl_ops = {
 441         .get_brightness = bl_get_brightness,
 442         .update_status = bl_update_status,
 443 };
 444
 445 /* Platform LCD brightness device */
 446
 447 static ssize_t
 448 show_max_brightness(struct device *dev,
 449                     struct device_attribute *attr, char *buf)
 450 {
 451
 452         int ret;
 453
 454         ret = get_max_brightness();
 455         if (ret < 0)
 456                 return ret;
 457
 458         return sprintf(buf, "%i\n", ret);
 459 }
 460
 461 static ssize_t
 462 show_brightness_changed(struct device *dev,
 463                         struct device_attribute *attr, char *buf)
 464 {
 465
 466         int ret;
 467
 468         ret = fujitsu->brightness_changed;
 469         if (ret < 0)
 470                 return ret;
 471
 472         return sprintf(buf, "%i\n", ret);
 473 }
 474
 475 static ssize_t show_lcd_level(struct device *dev,
 476                               struct device_attribute *attr, char *buf)
 477 {
 478
 479         int ret;
 480
 481         ret = get_lcd_level();
 482         if (ret < 0)
 483                 return ret;
 484
 485         return sprintf(buf, "%i\n", ret);
 486 }
 487
 488 static ssize_t store_lcd_level(struct device *dev,
 489                                struct device_attribute *attr, const char *buf,
 490                                size_t count)
 491 {
 492
 493         int level, ret;
 494
 495         if (sscanf(buf, "%i", &level) != 1
 496             || (level < 0 || level >= fujitsu->max_brightness))
 497                 return -EINVAL;
 498
 499         if (use_alt_lcd_levels)
 500                 ret = set_lcd_level_alt(level);
 501         else
 502                 ret = set_lcd_level(level);
 503         if (ret < 0)
 504                 return ret;
 505
 506         ret = get_lcd_level();
 507         if (ret < 0)
 508                 return ret;
 509
 510         return count;
 511 }
 512
 513 static ssize_t
 514 ignore_store(struct device *dev,
 515              struct device_attribute *attr, const char *buf, size_t count)
 516 {
 517         return count;
 518 }
 519
 520 static ssize_t
 521 show_lid_state(struct device *dev,
 522                         struct device_attribute *attr, char *buf)
 523 {
 524         if (!(fujitsu_hotkey->rfkill_supported & 0x100))
 525                 return sprintf(buf, "unknown\n");
 526         if (fujitsu_hotkey->rfkill_state & 0x100)
 527                 return sprintf(buf, "open\n");
 528         else
 529                 return sprintf(buf, "closed\n");
 530 }
 531
 532 static ssize_t
 533 show_dock_state(struct device *dev,
 534                         struct device_attribute *attr, char *buf)
 535 {
 536         if (!(fujitsu_hotkey->rfkill_supported & 0x200))
 537                 return sprintf(buf, "unknown\n");
 538         if (fujitsu_hotkey->rfkill_state & 0x200)
 539                 return sprintf(buf, "docked\n");
 540         else
 541                 return sprintf(buf, "undocked\n");
 542 }
 543
 544 static ssize_t
 545 show_radios_state(struct device *dev,
 546                         struct device_attribute *attr, char *buf)
 547 {
 548         if (!(fujitsu_hotkey->rfkill_supported & 0x20))
 549                 return sprintf(buf, "unknown\n");
 550         if (fujitsu_hotkey->rfkill_state & 0x20)
 551                 return sprintf(buf, "on\n");
 552         else
 553                 return sprintf(buf, "killed\n");
 554 }
 555
 556 static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store);
 557 static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed,
 558                    ignore_store);
 559 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 560 static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store);
 561 static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store);
 562 static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store);
 563
 564 static struct attribute *fujitsupf_attributes[] = {
 565         &dev_attr_brightness_changed.attr,
 566         &dev_attr_max_brightness.attr,
 567         &dev_attr_lcd_level.attr,
 568         &dev_attr_lid.attr,
 569         &dev_attr_dock.attr,
 570         &dev_attr_radios.attr,
 571         NULL
 572 };
 573
 574 static struct attribute_group fujitsupf_attribute_group = {
 575         .attrs = fujitsupf_attributes
 576 };
 577
 578 static struct platform_driver fujitsupf_driver = {
 579         .driver = {
 580                    .name = "fujitsu-laptop",
 581                    .owner = THIS_MODULE,
 582                    }
 583 };
 584
 585 static void dmi_check_cb_common(const struct dmi_system_id *id)
 586 {
 587         acpi_handle handle;
 588         printk(KERN_INFO "fujitsu-laptop: Identified laptop model '%s'.\n",
 589                id->ident);
 590         if (use_alt_lcd_levels == -1) {
 591                 if (ACPI_SUCCESS(acpi_get_handle(NULL,
 592                                 "\\_SB.PCI0.LPCB.FJEX.SBL2", &handle)))
 593                         use_alt_lcd_levels = 1;
 594                 else
 595                         use_alt_lcd_levels = 0;
 596                 vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as "
 597                         "%i\n", use_alt_lcd_levels);
 598         }
 599 }
 600
 601 static int dmi_check_cb_s6410(const struct dmi_system_id *id)
 602 {
 603         dmi_check_cb_common(id);
 604         fujitsu->keycode1 = KEY_SCREENLOCK;     /* "Lock" */
 605         fujitsu->keycode2 = KEY_HELP;   /* "Mobility Center" */
 606         return 0;
 607 }
 608
 609 static int dmi_check_cb_s6420(const struct dmi_system_id *id)
 610 {
 611         dmi_check_cb_common(id);
 612         fujitsu->keycode1 = KEY_SCREENLOCK;     /* "Lock" */
 613         fujitsu->keycode2 = KEY_HELP;   /* "Mobility Center" */
 614         return 0;
 615 }
 616
 617 static int dmi_check_cb_p8010(const struct dmi_system_id *id)
 618 {
 619         dmi_check_cb_common(id);
 620         fujitsu->keycode1 = KEY_HELP;   /* "Support" */
 621         fujitsu->keycode3 = KEY_SWITCHVIDEOMODE;        /* "Presentation" */
 622         fujitsu->keycode4 = KEY_WWW;    /* "Internet" */
 623         return 0;
 624 }
 625
 626 static struct dmi_system_id fujitsu_dmi_table[] = {
 627         {
 628          .ident = "Fujitsu Siemens S6410",
 629          .matches = {
 630                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 631                      DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"),
 632                      },
 633          .callback = dmi_check_cb_s6410},
 634         {
 635          .ident = "Fujitsu Siemens S6420",
 636          .matches = {
 637                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 638                      DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"),
 639                      },
 640          .callback = dmi_check_cb_s6420},
 641         {
 642          .ident = "Fujitsu LifeBook P8010",
 643          .matches = {
 644                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 645                      DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"),
 646                      },
 647          .callback = dmi_check_cb_p8010},
 648         {}
 649 };
 650
 651 /* ACPI device for LCD brightness control */
 652
 653 static int acpi_fujitsu_add(struct acpi_device *device)
 654 {
 655         acpi_handle handle;
 656         int result = 0;
 657         int state = 0;
 658         struct input_dev *input;
 659         int error;
 660
 661         if (!device)
 662                 return -EINVAL;
 663
 664         fujitsu->acpi_handle = device->handle;
 665         sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME);
 666         sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
 667         device->driver_data = fujitsu;
 668
 669         fujitsu->input = input = input_allocate_device();
 670         if (!input) {
 671                 error = -ENOMEM;
 672                 goto err_stop;
 673         }
 674
 675         snprintf(fujitsu->phys, sizeof(fujitsu->phys),
 676                  "%s/video/input0", acpi_device_hid(device));
 677
 678         input->name = acpi_device_name(device);
 679         input->phys = fujitsu->phys;
 680         input->id.bustype = BUS_HOST;
 681         input->id.product = 0x06;
 682         input->dev.parent = &device->dev;
 683         input->evbit[0] = BIT(EV_KEY);
 684         set_bit(KEY_BRIGHTNESSUP, input->keybit);
 685         set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
 686         set_bit(KEY_UNKNOWN, input->keybit);
 687
 688         error = input_register_device(input);
 689         if (error)
 690                 goto err_free_input_dev;
 691
 692         result = acpi_bus_get_power(fujitsu->acpi_handle, &state);
 693         if (result) {
 694                 printk(KERN_ERR "Error reading power state\n");
 695                 goto err_unregister_input_dev;
 696         }
 697
 698         printk(KERN_INFO "ACPI: %s [%s] (%s)\n",
 699                acpi_device_name(device), acpi_device_bid(device),
 700                !device->power.state ? "on" : "off");
 701
 702         fujitsu->dev = device;
 703
 704         if (ACPI_SUCCESS
 705             (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
 706                 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
 707                 if (ACPI_FAILURE
 708                     (acpi_evaluate_object
 709                      (device->handle, METHOD_NAME__INI, NULL, NULL)))
 710                         printk(KERN_ERR "_INI Method failed\n");
 711         }
 712
 713         /* do config (detect defaults) */
 714         use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
 715         disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
 716         vdbg_printk(FUJLAPTOP_DBG_INFO,
 717                     "config: [alt interface: %d], [adjust disable: %d]\n",
 718                     use_alt_lcd_levels, disable_brightness_adjust);
 719
 720         if (get_max_brightness() <= 0)
 721                 fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS;
 722         get_lcd_level();
 723
 724         return result;
 725
 726 err_unregister_input_dev:
 727         input_unregister_device(input);
 728 err_free_input_dev:
 729         input_free_device(input);
 730 err_stop:
 731         return result;
 732 }
 733
 734 static int acpi_fujitsu_remove(struct acpi_device *device, int type)
 735 {
 736         struct fujitsu_t *fujitsu = acpi_driver_data(device);
 737         struct input_dev *input = fujitsu->input;
 738
 739         input_unregister_device(input);
 740
 741         input_free_device(input);
 742
 743         fujitsu->acpi_handle = NULL;
 744
 745         return 0;
 746 }
 747
 748 /* Brightness notify */
 749
 750 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
 751 {
 752         struct input_dev *input;
 753         int keycode;
 754         int oldb, newb;
 755
 756         input = fujitsu->input;
 757
 758         switch (event) {
 759         case ACPI_FUJITSU_NOTIFY_CODE1:
 760                 keycode = 0;
 761                 oldb = fujitsu->brightness_level;
 762                 get_lcd_level();
 763                 newb = fujitsu->brightness_level;
 764
 765                 vdbg_printk(FUJLAPTOP_DBG_TRACE,
 766                             "brightness button event [%i -> %i (%i)]\n",
 767                             oldb, newb, fujitsu->brightness_changed);
 768
 769                 if (oldb < newb) {
 770                         if (disable_brightness_adjust != 1) {
 771                                 if (use_alt_lcd_levels)
 772                                         set_lcd_level_alt(newb);
 773                                 else
 774                                         set_lcd_level(newb);
 775                         }
 776                         acpi_bus_generate_proc_event(fujitsu->dev,
 777                                 ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0);
 778                         keycode = KEY_BRIGHTNESSUP;
 779                 } else if (oldb > newb) {
 780                         if (disable_brightness_adjust != 1) {
 781                                 if (use_alt_lcd_levels)
 782                                         set_lcd_level_alt(newb);
 783                                 else
 784                                         set_lcd_level(newb);
 785                         }
 786                         acpi_bus_generate_proc_event(fujitsu->dev,
 787                                 ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0);
 788                         keycode = KEY_BRIGHTNESSDOWN;
 789                 }
 790                 break;
 791         default:
 792                 keycode = KEY_UNKNOWN;
 793                 vdbg_printk(FUJLAPTOP_DBG_WARN,
 794                             "unsupported event [0x%x]\n", event);
 795                 break;
 796         }
 797
 798         if (keycode != 0) {
 799                 input_report_key(input, keycode, 1);
 800                 input_sync(input);
 801                 input_report_key(input, keycode, 0);
 802                 input_sync(input);
 803         }
 804 }
 805
 806 /* ACPI device for hotkey handling */
 807
 808 static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
 809 {
 810         acpi_handle handle;
 811         int result = 0;
 812         int state = 0;
 813         struct input_dev *input;
 814         int error;
 815         int i;
 816
 817         if (!device)
 818                 return -EINVAL;
 819
 820         fujitsu_hotkey->acpi_handle = device->handle;
 821         sprintf(acpi_device_name(device), "%s",
 822                 ACPI_FUJITSU_HOTKEY_DEVICE_NAME);
 823         sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
 824         device->driver_data = fujitsu_hotkey;
 825
 826         /* kfifo */
 827         spin_lock_init(&fujitsu_hotkey->fifo_lock);
 828         error = kfifo_alloc(&fujitsu_hotkey->fifo, RINGBUFFERSIZE * sizeof(int),
 829                         GFP_KERNEL);
 830         if (error) {
 831                 printk(KERN_ERR "kfifo_alloc failed\n");
 832                 goto err_stop;
 833         }
 834
 835         fujitsu_hotkey->input = input = input_allocate_device();
 836         if (!input) {
 837                 error = -ENOMEM;
 838                 goto err_free_fifo;
 839         }
 840
 841         snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys),
 842                  "%s/video/input0", acpi_device_hid(device));
 843
 844         input->name = acpi_device_name(device);
 845         input->phys = fujitsu_hotkey->phys;
 846         input->id.bustype = BUS_HOST;
 847         input->id.product = 0x06;
 848         input->dev.parent = &device->dev;
 849
 850         set_bit(EV_KEY, input->evbit);
 851         set_bit(fujitsu->keycode1, input->keybit);
 852         set_bit(fujitsu->keycode2, input->keybit);
 853         set_bit(fujitsu->keycode3, input->keybit);
 854         set_bit(fujitsu->keycode4, input->keybit);
 855         set_bit(KEY_UNKNOWN, input->keybit);
 856
 857         error = input_register_device(input);
 858         if (error)
 859                 goto err_free_input_dev;
 860
 861         result = acpi_bus_get_power(fujitsu_hotkey->acpi_handle, &state);
 862         if (result) {
 863                 printk(KERN_ERR "Error reading power state\n");
 864                 goto err_unregister_input_dev;
 865         }
 866
 867         printk(KERN_INFO "ACPI: %s [%s] (%s)\n",
 868                acpi_device_name(device), acpi_device_bid(device),
 869                !device->power.state ? "on" : "off");
 870
 871         fujitsu_hotkey->dev = device;
 872
 873         if (ACPI_SUCCESS
 874             (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
 875                 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
 876                 if (ACPI_FAILURE
 877                     (acpi_evaluate_object
 878                      (device->handle, METHOD_NAME__INI, NULL, NULL)))
 879                         printk(KERN_ERR "_INI Method failed\n");
 880         }
 881
 882         i = 0;
 883         while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0
 884                 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE)
 885                 ; /* No action, result is discarded */
 886         vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i);
 887
 888         fujitsu_hotkey->rfkill_supported =
 889                 call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0);
 890
 891         /* Make sure our bitmask of supported functions is cleared if the
 892            RFKILL function block is not implemented, like on the S7020. */
 893         if (fujitsu_hotkey->rfkill_supported == UNSUPPORTED_CMD)
 894                 fujitsu_hotkey->rfkill_supported = 0;
 895
 896         if (fujitsu_hotkey->rfkill_supported)
 897                 fujitsu_hotkey->rfkill_state =
 898                         call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
 899
 900         /* Suspect this is a keymap of the application panel, print it */
 901         printk(KERN_INFO "fujitsu-laptop: BTNI: [0x%x]\n",
 902                 call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
 903
 904 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 905         if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
 906                 result = led_classdev_register(&fujitsu->pf_device->dev,
 907                                                 &logolamp_led);
 908                 if (result == 0) {
 909                         fujitsu_hotkey->logolamp_registered = 1;
 910                 } else {
 911                         printk(KERN_ERR "fujitsu-laptop: Could not register "
 912                         "LED handler for logo lamp, error %i\n", result);
 913                 }
 914         }
 915
 916         if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
 917            (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
 918                 result = led_classdev_register(&fujitsu->pf_device->dev,
 919                                                 &kblamps_led);
 920                 if (result == 0) {
 921                         fujitsu_hotkey->kblamps_registered = 1;
 922                 } else {
 923                         printk(KERN_ERR "fujitsu-laptop: Could not register "
 924                         "LED handler for keyboard lamps, error %i\n", result);
 925                 }
 926         }
 927 #endif
 928
 929         return result;
 930
 931 err_unregister_input_dev:
 932         input_unregister_device(input);
 933 err_free_input_dev:
 934         input_free_device(input);
 935 err_free_fifo:
 936         kfifo_free(&fujitsu_hotkey->fifo);
 937 err_stop:
 938         return result;
 939 }
 940
 941 static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type)
 942 {
 943         struct fujitsu_hotkey_t *fujitsu_hotkey = acpi_driver_data(device);
 944         struct input_dev *input = fujitsu_hotkey->input;
 945
 946 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 947         if (fujitsu_hotkey->logolamp_registered)
 948                 led_classdev_unregister(&logolamp_led);
 949
 950         if (fujitsu_hotkey->kblamps_registered)
 951                 led_classdev_unregister(&kblamps_led);
 952 #endif
 953
 954         input_unregister_device(input);
 955
 956         input_free_device(input);
 957
 958         kfifo_free(&fujitsu_hotkey->fifo);
 959
 960         fujitsu_hotkey->acpi_handle = NULL;
 961
 962         return 0;
 963 }
 964
 965 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event)
 966 {
 967         struct input_dev *input;
 968         int keycode, keycode_r;
 969         unsigned int irb = 1;
 970         int i, status;
 971
 972         input = fujitsu_hotkey->input;
 973
 974         if (fujitsu_hotkey->rfkill_supported)
 975                 fujitsu_hotkey->rfkill_state =
 976                         call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
 977
 978         switch (event) {
 979         case ACPI_FUJITSU_NOTIFY_CODE1:
 980                 i = 0;
 981                 while ((irb =
 982                         call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0
 983                                 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
 984                         switch (irb & 0x4ff) {
 985                         case KEY1_CODE:
 986                                 keycode = fujitsu->keycode1;
 987                                 break;
 988                         case KEY2_CODE:
 989                                 keycode = fujitsu->keycode2;
 990                                 break;
 991                         case KEY3_CODE:
 992                                 keycode = fujitsu->keycode3;
 993                                 break;
 994                         case KEY4_CODE:
 995                                 keycode = fujitsu->keycode4;
 996                                 break;
 997                         case 0:
 998                                 keycode = 0;
 999                                 break;
1000                         default:
1001                                 vdbg_printk(FUJLAPTOP_DBG_WARN,
1002                                             "Unknown GIRB result [%x]\n", irb);
1003                                 keycode = -1;
1004                                 break;
1005                         }
1006                         if (keycode > 0) {
1007                                 vdbg_printk(FUJLAPTOP_DBG_TRACE,
1008                                         "Push keycode into ringbuffer [%d]\n",
1009                                         keycode);
1010                                 status = kfifo_in_locked(&fujitsu_hotkey->fifo,
1011                                                    (unsigned char *)&keycode,
1012                                                    sizeof(keycode),
1013                                                    &fujitsu_hotkey->fifo_lock);
1014                                 if (status != sizeof(keycode)) {
1015                                         vdbg_printk(FUJLAPTOP_DBG_WARN,
1016                                             "Could not push keycode [0x%x]\n",
1017                                             keycode);
1018                                 } else {
1019                                         input_report_key(input, keycode, 1);
1020                                         input_sync(input);
1021                                 }
1022                         } else if (keycode == 0) {
1023                                 while ((status =
1024                                         kfifo_out_locked(
1025                                          &fujitsu_hotkey->fifo,
1026                                          (unsigned char *) &keycode_r,
1027                                          sizeof(keycode_r),
1028                                          &fujitsu_hotkey->fifo_lock))
1029                                          == 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                 struct backlight_properties props;
1131
1132                 memset(&props, 0, sizeof(struct backlight_properties));
1133                 max_brightness = fujitsu->max_brightness;
1134                 props.max_brightness = max_brightness - 1;
1135                 fujitsu->bl_device = backlight_device_register("fujitsu-laptop",
1136                                                                NULL, NULL,
1137                                                                &fujitsubl_ops,
1138                                                                &props);
1139                 if (IS_ERR(fujitsu->bl_device)) {
1140                         ret = PTR_ERR(fujitsu->bl_device);
1141                         fujitsu->bl_device = NULL;
1142                         goto fail_sysfs_group;
1143                 }
1144                 fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
1145         }
1146
1147         ret = platform_driver_register(&fujitsupf_driver);
1148         if (ret)
1149                 goto fail_backlight;
1150
1151         /* Register hotkey driver */
1152
1153         fujitsu_hotkey = kmalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL);
1154         if (!fujitsu_hotkey) {
1155                 ret = -ENOMEM;
1156                 goto fail_hotkey;
1157         }
1158         memset(fujitsu_hotkey, 0, sizeof(struct fujitsu_hotkey_t));
1159
1160         result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver);
1161         if (result < 0) {
1162                 ret = -ENODEV;
1163                 goto fail_hotkey1;
1164         }
1165
1166         /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
1167
1168         if (!acpi_video_backlight_support()) {
1169                 if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3)
1170                         fujitsu->bl_device->props.power = 4;
1171                 else
1172                         fujitsu->bl_device->props.power = 0;
1173         }
1174
1175         printk(KERN_INFO "fujitsu-laptop: driver " FUJITSU_DRIVER_VERSION
1176                " successfully loaded.\n");
1177
1178         return 0;
1179
1180 fail_hotkey1:
1181         kfree(fujitsu_hotkey);
1182 fail_hotkey:
1183         platform_driver_unregister(&fujitsupf_driver);
1184 fail_backlight:
1185         if (fujitsu->bl_device)
1186                 backlight_device_unregister(fujitsu->bl_device);
1187 fail_sysfs_group:
1188         sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1189                            &fujitsupf_attribute_group);
1190 fail_platform_device2:
1191         platform_device_del(fujitsu->pf_device);
1192 fail_platform_device1:
1193         platform_device_put(fujitsu->pf_device);
1194 fail_platform_driver:
1195         acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1196 fail_acpi:
1197         kfree(fujitsu);
1198
1199         return ret;
1200 }
1201
1202 static void __exit fujitsu_cleanup(void)
1203 {
1204         acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver);
1205
1206         kfree(fujitsu_hotkey);
1207
1208         platform_driver_unregister(&fujitsupf_driver);
1209
1210         if (fujitsu->bl_device)
1211                 backlight_device_unregister(fujitsu->bl_device);
1212
1213         sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1214                            &fujitsupf_attribute_group);
1215
1216         platform_device_unregister(fujitsu->pf_device);
1217
1218         acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1219
1220         kfree(fujitsu);
1221
1222         printk(KERN_INFO "fujitsu-laptop: driver unloaded.\n");
1223 }
1224
1225 module_init(fujitsu_init);
1226 module_exit(fujitsu_cleanup);
1227
1228 module_param(use_alt_lcd_levels, uint, 0644);
1229 MODULE_PARM_DESC(use_alt_lcd_levels,
1230                  "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
1231 module_param(disable_brightness_adjust, uint, 0644);
1232 MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment .");
1233 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
1234 module_param_named(debug, dbg_level, uint, 0644);
1235 MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
1236 #endif
1237
1238 MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
1239 MODULE_DESCRIPTION("Fujitsu laptop extras support");
1240 MODULE_VERSION(FUJITSU_DRIVER_VERSION);
1241 MODULE_LICENSE("GPL");
1242
1243 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
1244 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
1245 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
1246
1247 static struct pnp_device_id pnp_ids[] = {
1248         {.id = "FUJ02bf"},
1249         {.id = "FUJ02B1"},
1250         {.id = "FUJ02E3"},
1251         {.id = ""}
1252 };
1253
1254 MODULE_DEVICE_TABLE(pnp, pnp_ids);