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 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
  70 #include <linux/leds.h>
  71 #endif
  72
  73 #define FUJITSU_DRIVER_VERSION "0.6.0"
  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 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 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 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 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 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 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         status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle);
 328         if (ACPI_FAILURE(status)) {
 329                 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n");
 330                 return -ENODEV;
 331         }
 332
 333         arg0.integer.value = level;
 334
 335         status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
 336         if (ACPI_FAILURE(status))
 337                 return -ENODEV;
 338
 339         return 0;
 340 }
 341
 342 static int set_lcd_level_alt(int level)
 343 {
 344         acpi_status status = AE_OK;
 345         union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 346         struct acpi_object_list arg_list = { 1, &arg0 };
 347         acpi_handle handle = NULL;
 348
 349         vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n",
 350                     level);
 351
 352         if (level < 0 || level >= fujitsu->max_brightness)
 353                 return -EINVAL;
 354
 355         status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle);
 356         if (ACPI_FAILURE(status)) {
 357                 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n");
 358                 return -ENODEV;
 359         }
 360
 361         arg0.integer.value = level;
 362
 363         status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
 364         if (ACPI_FAILURE(status))
 365                 return -ENODEV;
 366
 367         return 0;
 368 }
 369
 370 static int get_lcd_level(void)
 371 {
 372         unsigned long long state = 0;
 373         acpi_status status = AE_OK;
 374
 375         vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n");
 376
 377         status =
 378             acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
 379         if (status < 0)
 380                 return status;
 381
 382         fujitsu->brightness_level = state & 0x0fffffff;
 383
 384         if (state & 0x80000000)
 385                 fujitsu->brightness_changed = 1;
 386         else
 387                 fujitsu->brightness_changed = 0;
 388
 389         return fujitsu->brightness_level;
 390 }
 391
 392 static int get_max_brightness(void)
 393 {
 394         unsigned long long state = 0;
 395         acpi_status status = AE_OK;
 396
 397         vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n");
 398
 399         status =
 400             acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state);
 401         if (status < 0)
 402                 return status;
 403
 404         fujitsu->max_brightness = state;
 405
 406         return fujitsu->max_brightness;
 407 }
 408
 409 /* Backlight device stuff */
 410
 411 static int bl_get_brightness(struct backlight_device *b)
 412 {
 413         return get_lcd_level();
 414 }
 415
 416 static int bl_update_status(struct backlight_device *b)
 417 {
 418         int ret;
 419         if (b->props.power == 4)
 420                 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
 421         else
 422                 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
 423         if (ret != 0)
 424                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 425                         "Unable to adjust backlight power, error code %i\n",
 426                         ret);
 427
 428         if (use_alt_lcd_levels)
 429                 ret = set_lcd_level_alt(b->props.brightness);
 430         else
 431                 ret = set_lcd_level(b->props.brightness);
 432         if (ret != 0)
 433                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 434                         "Unable to adjust LCD brightness, error code %i\n",
 435                         ret);
 436         return ret;
 437 }
 438
 439 static struct backlight_ops fujitsubl_ops = {
 440         .get_brightness = bl_get_brightness,
 441         .update_status = bl_update_status,
 442 };
 443
 444 /* Platform LCD brightness device */
 445
 446 static ssize_t
 447 show_max_brightness(struct device *dev,
 448                     struct device_attribute *attr, char *buf)
 449 {
 450
 451         int ret;
 452
 453         ret = get_max_brightness();
 454         if (ret < 0)
 455                 return ret;
 456
 457         return sprintf(buf, "%i\n", ret);
 458 }
 459
 460 static ssize_t
 461 show_brightness_changed(struct device *dev,
 462                         struct device_attribute *attr, char *buf)
 463 {
 464
 465         int ret;
 466
 467         ret = fujitsu->brightness_changed;
 468         if (ret < 0)
 469                 return ret;
 470
 471         return sprintf(buf, "%i\n", ret);
 472 }
 473
 474 static ssize_t show_lcd_level(struct device *dev,
 475                               struct device_attribute *attr, char *buf)
 476 {
 477
 478         int ret;
 479
 480         ret = get_lcd_level();
 481         if (ret < 0)
 482                 return ret;
 483
 484         return sprintf(buf, "%i\n", ret);
 485 }
 486
 487 static ssize_t store_lcd_level(struct device *dev,
 488                                struct device_attribute *attr, const char *buf,
 489                                size_t count)
 490 {
 491
 492         int level, ret;
 493
 494         if (sscanf(buf, "%i", &level) != 1
 495             || (level < 0 || level >= fujitsu->max_brightness))
 496                 return -EINVAL;
 497
 498         if (use_alt_lcd_levels)
 499                 ret = set_lcd_level_alt(level);
 500         else
 501                 ret = set_lcd_level(level);
 502         if (ret < 0)
 503                 return ret;
 504
 505         ret = get_lcd_level();
 506         if (ret < 0)
 507                 return ret;
 508
 509         return count;
 510 }
 511
 512 static ssize_t
 513 ignore_store(struct device *dev,
 514              struct device_attribute *attr, const char *buf, size_t count)
 515 {
 516         return count;
 517 }
 518
 519 static ssize_t
 520 show_lid_state(struct device *dev,
 521                         struct device_attribute *attr, char *buf)
 522 {
 523         if (!(fujitsu_hotkey->rfkill_supported & 0x100))
 524                 return sprintf(buf, "unknown\n");
 525         if (fujitsu_hotkey->rfkill_state & 0x100)
 526                 return sprintf(buf, "open\n");
 527         else
 528                 return sprintf(buf, "closed\n");
 529 }
 530
 531 static ssize_t
 532 show_dock_state(struct device *dev,
 533                         struct device_attribute *attr, char *buf)
 534 {
 535         if (!(fujitsu_hotkey->rfkill_supported & 0x200))
 536                 return sprintf(buf, "unknown\n");
 537         if (fujitsu_hotkey->rfkill_state & 0x200)
 538                 return sprintf(buf, "docked\n");
 539         else
 540                 return sprintf(buf, "undocked\n");
 541 }
 542
 543 static ssize_t
 544 show_radios_state(struct device *dev,
 545                         struct device_attribute *attr, char *buf)
 546 {
 547         if (!(fujitsu_hotkey->rfkill_supported & 0x20))
 548                 return sprintf(buf, "unknown\n");
 549         if (fujitsu_hotkey->rfkill_state & 0x20)
 550                 return sprintf(buf, "on\n");
 551         else
 552                 return sprintf(buf, "killed\n");
 553 }
 554
 555 static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store);
 556 static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed,
 557                    ignore_store);
 558 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 559 static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store);
 560 static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store);
 561 static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store);
 562
 563 static struct attribute *fujitsupf_attributes[] = {
 564         &dev_attr_brightness_changed.attr,
 565         &dev_attr_max_brightness.attr,
 566         &dev_attr_lcd_level.attr,
 567         &dev_attr_lid.attr,
 568         &dev_attr_dock.attr,
 569         &dev_attr_radios.attr,
 570         NULL
 571 };
 572
 573 static struct attribute_group fujitsupf_attribute_group = {
 574         .attrs = fujitsupf_attributes
 575 };
 576
 577 static struct platform_driver fujitsupf_driver = {
 578         .driver = {
 579                    .name = "fujitsu-laptop",
 580                    .owner = THIS_MODULE,
 581                    }
 582 };
 583
 584 static void dmi_check_cb_common(const struct dmi_system_id *id)
 585 {
 586         acpi_handle handle;
 587         printk(KERN_INFO "fujitsu-laptop: Identified laptop model '%s'.\n",
 588                id->ident);
 589         if (use_alt_lcd_levels == -1) {
 590                 if (ACPI_SUCCESS(acpi_get_handle(NULL,
 591                                 "\\_SB.PCI0.LPCB.FJEX.SBL2", &handle)))
 592                         use_alt_lcd_levels = 1;
 593                 else
 594                         use_alt_lcd_levels = 0;
 595                 vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as "
 596                         "%i\n", use_alt_lcd_levels);
 597         }
 598 }
 599
 600 static int dmi_check_cb_s6410(const struct dmi_system_id *id)
 601 {
 602         dmi_check_cb_common(id);
 603         fujitsu->keycode1 = KEY_SCREENLOCK;     /* "Lock" */
 604         fujitsu->keycode2 = KEY_HELP;   /* "Mobility Center" */
 605         return 0;
 606 }
 607
 608 static int dmi_check_cb_s6420(const struct dmi_system_id *id)
 609 {
 610         dmi_check_cb_common(id);
 611         fujitsu->keycode1 = KEY_SCREENLOCK;     /* "Lock" */
 612         fujitsu->keycode2 = KEY_HELP;   /* "Mobility Center" */
 613         return 0;
 614 }
 615
 616 static int dmi_check_cb_p8010(const struct dmi_system_id *id)
 617 {
 618         dmi_check_cb_common(id);
 619         fujitsu->keycode1 = KEY_HELP;   /* "Support" */
 620         fujitsu->keycode3 = KEY_SWITCHVIDEOMODE;        /* "Presentation" */
 621         fujitsu->keycode4 = KEY_WWW;    /* "Internet" */
 622         return 0;
 623 }
 624
 625 static struct dmi_system_id fujitsu_dmi_table[] = {
 626         {
 627          .ident = "Fujitsu Siemens S6410",
 628          .matches = {
 629                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 630                      DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"),
 631                      },
 632          .callback = dmi_check_cb_s6410},
 633         {
 634          .ident = "Fujitsu Siemens S6420",
 635          .matches = {
 636                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 637                      DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"),
 638                      },
 639          .callback = dmi_check_cb_s6420},
 640         {
 641          .ident = "Fujitsu LifeBook P8010",
 642          .matches = {
 643                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 644                      DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"),
 645                      },
 646          .callback = dmi_check_cb_p8010},
 647         {}
 648 };
 649
 650 /* ACPI device for LCD brightness control */
 651
 652 static int acpi_fujitsu_add(struct acpi_device *device)
 653 {
 654         acpi_handle handle;
 655         int result = 0;
 656         int state = 0;
 657         struct input_dev *input;
 658         int error;
 659
 660         if (!device)
 661                 return -EINVAL;
 662
 663         fujitsu->acpi_handle = device->handle;
 664         sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME);
 665         sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
 666         device->driver_data = fujitsu;
 667
 668         fujitsu->input = input = input_allocate_device();
 669         if (!input) {
 670                 error = -ENOMEM;
 671                 goto err_stop;
 672         }
 673
 674         snprintf(fujitsu->phys, sizeof(fujitsu->phys),
 675                  "%s/video/input0", acpi_device_hid(device));
 676
 677         input->name = acpi_device_name(device);
 678         input->phys = fujitsu->phys;
 679         input->id.bustype = BUS_HOST;
 680         input->id.product = 0x06;
 681         input->dev.parent = &device->dev;
 682         input->evbit[0] = BIT(EV_KEY);
 683         set_bit(KEY_BRIGHTNESSUP, input->keybit);
 684         set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
 685         set_bit(KEY_UNKNOWN, input->keybit);
 686
 687         error = input_register_device(input);
 688         if (error)
 689                 goto err_free_input_dev;
 690
 691         result = acpi_bus_get_power(fujitsu->acpi_handle, &state);
 692         if (result) {
 693                 printk(KERN_ERR "Error reading power state\n");
 694                 goto err_unregister_input_dev;
 695         }
 696
 697         printk(KERN_INFO "ACPI: %s [%s] (%s)\n",
 698                acpi_device_name(device), acpi_device_bid(device),
 699                !device->power.state ? "on" : "off");
 700
 701         fujitsu->dev = device;
 702
 703         if (ACPI_SUCCESS
 704             (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
 705                 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
 706                 if (ACPI_FAILURE
 707                     (acpi_evaluate_object
 708                      (device->handle, METHOD_NAME__INI, NULL, NULL)))
 709                         printk(KERN_ERR "_INI Method failed\n");
 710         }
 711
 712         /* do config (detect defaults) */
 713         use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
 714         disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
 715         vdbg_printk(FUJLAPTOP_DBG_INFO,
 716                     "config: [alt interface: %d], [adjust disable: %d]\n",
 717                     use_alt_lcd_levels, disable_brightness_adjust);
 718
 719         if (get_max_brightness() <= 0)
 720                 fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS;
 721         get_lcd_level();
 722
 723         return result;
 724
 725 err_unregister_input_dev:
 726         input_unregister_device(input);
 727 err_free_input_dev:
 728         input_free_device(input);
 729 err_stop:
 730         return result;
 731 }
 732
 733 static int acpi_fujitsu_remove(struct acpi_device *device, int type)
 734 {
 735         struct fujitsu_t *fujitsu = acpi_driver_data(device);
 736         struct input_dev *input = fujitsu->input;
 737
 738         input_unregister_device(input);
 739
 740         input_free_device(input);
 741
 742         fujitsu->acpi_handle = NULL;
 743
 744         return 0;
 745 }
 746
 747 /* Brightness notify */
 748
 749 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
 750 {
 751         struct input_dev *input;
 752         int keycode;
 753         int oldb, newb;
 754
 755         input = fujitsu->input;
 756
 757         switch (event) {
 758         case ACPI_FUJITSU_NOTIFY_CODE1:
 759                 keycode = 0;
 760                 oldb = fujitsu->brightness_level;
 761                 get_lcd_level();
 762                 newb = fujitsu->brightness_level;
 763
 764                 vdbg_printk(FUJLAPTOP_DBG_TRACE,
 765                             "brightness button event [%i -> %i (%i)]\n",
 766                             oldb, newb, fujitsu->brightness_changed);
 767
 768                 if (oldb < newb) {
 769                         if (disable_brightness_adjust != 1) {
 770                                 if (use_alt_lcd_levels)
 771                                         set_lcd_level_alt(newb);
 772                                 else
 773                                         set_lcd_level(newb);
 774                         }
 775                         acpi_bus_generate_proc_event(fujitsu->dev,
 776                                 ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0);
 777                         keycode = KEY_BRIGHTNESSUP;
 778                 } else if (oldb > newb) {
 779                         if (disable_brightness_adjust != 1) {
 780                                 if (use_alt_lcd_levels)
 781                                         set_lcd_level_alt(newb);
 782                                 else
 783                                         set_lcd_level(newb);
 784                         }
 785                         acpi_bus_generate_proc_event(fujitsu->dev,
 786                                 ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0);
 787                         keycode = KEY_BRIGHTNESSDOWN;
 788                 }
 789                 break;
 790         default:
 791                 keycode = KEY_UNKNOWN;
 792                 vdbg_printk(FUJLAPTOP_DBG_WARN,
 793                             "unsupported event [0x%x]\n", event);
 794                 break;
 795         }
 796
 797         if (keycode != 0) {
 798                 input_report_key(input, keycode, 1);
 799                 input_sync(input);
 800                 input_report_key(input, keycode, 0);
 801                 input_sync(input);
 802         }
 803 }
 804
 805 /* ACPI device for hotkey handling */
 806
 807 static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
 808 {
 809         acpi_handle handle;
 810         int result = 0;
 811         int state = 0;
 812         struct input_dev *input;
 813         int error;
 814         int i;
 815
 816         if (!device)
 817                 return -EINVAL;
 818
 819         fujitsu_hotkey->acpi_handle = device->handle;
 820         sprintf(acpi_device_name(device), "%s",
 821                 ACPI_FUJITSU_HOTKEY_DEVICE_NAME);
 822         sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
 823         device->driver_data = fujitsu_hotkey;
 824
 825         /* kfifo */
 826         spin_lock_init(&fujitsu_hotkey->fifo_lock);
 827         error = kfifo_alloc(&fujitsu_hotkey->fifo, RINGBUFFERSIZE * sizeof(int),
 828                         GFP_KERNEL, &fujitsu_hotkey->fifo_lock);
 829         if (error) {
 830                 printk(KERN_ERR "kfifo_alloc failed\n");
 831                 goto err_stop;
 832         }
 833
 834         fujitsu_hotkey->input = input = input_allocate_device();
 835         if (!input) {
 836                 error = -ENOMEM;
 837                 goto err_free_fifo;
 838         }
 839
 840         snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys),
 841                  "%s/video/input0", acpi_device_hid(device));
 842
 843         input->name = acpi_device_name(device);
 844         input->phys = fujitsu_hotkey->phys;
 845         input->id.bustype = BUS_HOST;
 846         input->id.product = 0x06;
 847         input->dev.parent = &device->dev;
 848
 849         set_bit(EV_KEY, input->evbit);
 850         set_bit(fujitsu->keycode1, input->keybit);
 851         set_bit(fujitsu->keycode2, input->keybit);
 852         set_bit(fujitsu->keycode3, input->keybit);
 853         set_bit(fujitsu->keycode4, input->keybit);
 854         set_bit(KEY_UNKNOWN, input->keybit);
 855
 856         error = input_register_device(input);
 857         if (error)
 858                 goto err_free_input_dev;
 859
 860         result = acpi_bus_get_power(fujitsu_hotkey->acpi_handle, &state);
 861         if (result) {
 862                 printk(KERN_ERR "Error reading power state\n");
 863                 goto err_unregister_input_dev;
 864         }
 865
 866         printk(KERN_INFO "ACPI: %s [%s] (%s)\n",
 867                acpi_device_name(device), acpi_device_bid(device),
 868                !device->power.state ? "on" : "off");
 869
 870         fujitsu_hotkey->dev = device;
 871
 872         if (ACPI_SUCCESS
 873             (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
 874                 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
 875                 if (ACPI_FAILURE
 876                     (acpi_evaluate_object
 877                      (device->handle, METHOD_NAME__INI, NULL, NULL)))
 878                         printk(KERN_ERR "_INI Method failed\n");
 879         }
 880
 881         i = 0;
 882         while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0
 883                 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE)
 884                 ; /* No action, result is discarded */
 885         vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i);
 886
 887         fujitsu_hotkey->rfkill_supported =
 888                 call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0);
 889
 890         /* Make sure our bitmask of supported functions is cleared if the
 891            RFKILL function block is not implemented, like on the S7020. */
 892         if (fujitsu_hotkey->rfkill_supported == UNSUPPORTED_CMD)
 893                 fujitsu_hotkey->rfkill_supported = 0;
 894
 895         if (fujitsu_hotkey->rfkill_supported)
 896                 fujitsu_hotkey->rfkill_state =
 897                         call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
 898
 899         /* Suspect this is a keymap of the application panel, print it */
 900         printk(KERN_INFO "fujitsu-laptop: BTNI: [0x%x]\n",
 901                 call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
 902
 903 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 904         if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
 905                 result = led_classdev_register(&fujitsu->pf_device->dev,
 906                                                 &logolamp_led);
 907                 if (result == 0) {
 908                         fujitsu_hotkey->logolamp_registered = 1;
 909                 } else {
 910                         printk(KERN_ERR "fujitsu-laptop: Could not register "
 911                         "LED handler for logo lamp, error %i\n", result);
 912                 }
 913         }
 914
 915         if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
 916            (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
 917                 result = led_classdev_register(&fujitsu->pf_device->dev,
 918                                                 &kblamps_led);
 919                 if (result == 0) {
 920                         fujitsu_hotkey->kblamps_registered = 1;
 921                 } else {
 922                         printk(KERN_ERR "fujitsu-laptop: Could not register "
 923                         "LED handler for keyboard lamps, error %i\n", result);
 924                 }
 925         }
 926 #endif
 927
 928         return result;
 929
 930 err_unregister_input_dev:
 931         input_unregister_device(input);
 932 err_free_input_dev:
 933         input_free_device(input);
 934 err_free_fifo:
 935         kfifo_free(&fujitsu_hotkey->fifo);
 936 err_stop:
 937         return result;
 938 }
 939
 940 static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type)
 941 {
 942         struct fujitsu_hotkey_t *fujitsu_hotkey = acpi_driver_data(device);
 943         struct input_dev *input = fujitsu_hotkey->input;
 944
 945 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 946         if (fujitsu_hotkey->logolamp_registered)
 947                 led_classdev_unregister(&logolamp_led);
 948
 949         if (fujitsu_hotkey->kblamps_registered)
 950                 led_classdev_unregister(&kblamps_led);
 951 #endif
 952
 953         input_unregister_device(input);
 954
 955         input_free_device(input);
 956
 957         kfifo_free(&fujitsu_hotkey->fifo);
 958
 959         fujitsu_hotkey->acpi_handle = NULL;
 960
 961         return 0;
 962 }
 963
 964 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event)
 965 {
 966         struct input_dev *input;
 967         int keycode, keycode_r;
 968         unsigned int irb = 1;
 969         int i, status;
 970
 971         input = fujitsu_hotkey->input;
 972
 973         if (fujitsu_hotkey->rfkill_supported)
 974                 fujitsu_hotkey->rfkill_state =
 975                         call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
 976
 977         switch (event) {
 978         case ACPI_FUJITSU_NOTIFY_CODE1:
 979                 i = 0;
 980                 while ((irb =
 981                         call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0
 982                                 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
 983                         switch (irb & 0x4ff) {
 984                         case KEY1_CODE:
 985                                 keycode = fujitsu->keycode1;
 986                                 break;
 987                         case KEY2_CODE:
 988                                 keycode = fujitsu->keycode2;
 989                                 break;
 990                         case KEY3_CODE:
 991                                 keycode = fujitsu->keycode3;
 992                                 break;
 993                         case KEY4_CODE:
 994                                 keycode = fujitsu->keycode4;
 995                                 break;
 996                         case 0:
 997                                 keycode = 0;
 998                                 break;
 999                         default:
1000                                 vdbg_printk(FUJLAPTOP_DBG_WARN,
1001                                             "Unknown GIRB result [%x]\n", irb);
1002                                 keycode = -1;
1003                                 break;
1004                         }
1005                         if (keycode > 0) {
1006                                 vdbg_printk(FUJLAPTOP_DBG_TRACE,
1007                                         "Push keycode into ringbuffer [%d]\n",
1008                                         keycode);
1009                                 status = kfifo_put(&fujitsu_hotkey->fifo,
1010                                                    (unsigned char *)&keycode,
1011                                                    sizeof(keycode));
1012                                 if (status != sizeof(keycode)) {
1013                                         vdbg_printk(FUJLAPTOP_DBG_WARN,
1014                                             "Could not push keycode [0x%x]\n",
1015                                             keycode);
1016                                 } else {
1017                                         input_report_key(input, keycode, 1);
1018                                         input_sync(input);
1019                                 }
1020                         } else if (keycode == 0) {
1021                                 while ((status =
1022                                         kfifo_get
1023                                         (&fujitsu_hotkey->fifo, (unsigned char *)
1024                                          &keycode_r,
1025                                          sizeof
1026                                          (keycode_r))) == sizeof(keycode_r)) {
1027                                         input_report_key(input, keycode_r, 0);
1028                                         input_sync(input);
1029                                         vdbg_printk(FUJLAPTOP_DBG_TRACE,
1030                                           "Pop keycode from ringbuffer [%d]\n",
1031                                           keycode_r);
1032                                 }
1033                         }
1034                 }
1035
1036                 break;
1037         default:
1038                 keycode = KEY_UNKNOWN;
1039                 vdbg_printk(FUJLAPTOP_DBG_WARN,
1040                             "Unsupported event [0x%x]\n", event);
1041                 input_report_key(input, keycode, 1);
1042                 input_sync(input);
1043                 input_report_key(input, keycode, 0);
1044                 input_sync(input);
1045                 break;
1046         }
1047 }
1048
1049 /* Initialization */
1050
1051 static const struct acpi_device_id fujitsu_device_ids[] = {
1052         {ACPI_FUJITSU_HID, 0},
1053         {"", 0},
1054 };
1055
1056 static struct acpi_driver acpi_fujitsu_driver = {
1057         .name = ACPI_FUJITSU_DRIVER_NAME,
1058         .class = ACPI_FUJITSU_CLASS,
1059         .ids = fujitsu_device_ids,
1060         .ops = {
1061                 .add = acpi_fujitsu_add,
1062                 .remove = acpi_fujitsu_remove,
1063                 .notify = acpi_fujitsu_notify,
1064                 },
1065 };
1066
1067 static const struct acpi_device_id fujitsu_hotkey_device_ids[] = {
1068         {ACPI_FUJITSU_HOTKEY_HID, 0},
1069         {"", 0},
1070 };
1071
1072 static struct acpi_driver acpi_fujitsu_hotkey_driver = {
1073         .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME,
1074         .class = ACPI_FUJITSU_CLASS,
1075         .ids = fujitsu_hotkey_device_ids,
1076         .ops = {
1077                 .add = acpi_fujitsu_hotkey_add,
1078                 .remove = acpi_fujitsu_hotkey_remove,
1079                 .notify = acpi_fujitsu_hotkey_notify,
1080                 },
1081 };
1082
1083 static int __init fujitsu_init(void)
1084 {
1085         int ret, result, max_brightness;
1086
1087         if (acpi_disabled)
1088                 return -ENODEV;
1089
1090         fujitsu = kmalloc(sizeof(struct fujitsu_t), GFP_KERNEL);
1091         if (!fujitsu)
1092                 return -ENOMEM;
1093         memset(fujitsu, 0, sizeof(struct fujitsu_t));
1094         fujitsu->keycode1 = KEY_PROG1;
1095         fujitsu->keycode2 = KEY_PROG2;
1096         fujitsu->keycode3 = KEY_PROG3;
1097         fujitsu->keycode4 = KEY_PROG4;
1098         dmi_check_system(fujitsu_dmi_table);
1099
1100         result = acpi_bus_register_driver(&acpi_fujitsu_driver);
1101         if (result < 0) {
1102                 ret = -ENODEV;
1103                 goto fail_acpi;
1104         }
1105
1106         /* Register platform stuff */
1107
1108         fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1);
1109         if (!fujitsu->pf_device) {
1110                 ret = -ENOMEM;
1111                 goto fail_platform_driver;
1112         }
1113
1114         ret = platform_device_add(fujitsu->pf_device);
1115         if (ret)
1116                 goto fail_platform_device1;
1117
1118         ret =
1119             sysfs_create_group(&fujitsu->pf_device->dev.kobj,
1120                                &fujitsupf_attribute_group);
1121         if (ret)
1122                 goto fail_platform_device2;
1123
1124         /* Register backlight stuff */
1125
1126         if (!acpi_video_backlight_support()) {
1127                 fujitsu->bl_device =
1128                         backlight_device_register("fujitsu-laptop", NULL, NULL,
1129                                                   &fujitsubl_ops);
1130                 if (IS_ERR(fujitsu->bl_device)) {
1131                         ret = PTR_ERR(fujitsu->bl_device);
1132                         fujitsu->bl_device = NULL;
1133                         goto fail_sysfs_group;
1134                 }
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         kfree(fujitsu_hotkey);
1175 fail_hotkey:
1176         platform_driver_unregister(&fujitsupf_driver);
1177 fail_backlight:
1178         if (fujitsu->bl_device)
1179                 backlight_device_unregister(fujitsu->bl_device);
1180 fail_sysfs_group:
1181         sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1182                            &fujitsupf_attribute_group);
1183 fail_platform_device2:
1184         platform_device_del(fujitsu->pf_device);
1185 fail_platform_device1:
1186         platform_device_put(fujitsu->pf_device);
1187 fail_platform_driver:
1188         acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1189 fail_acpi:
1190         kfree(fujitsu);
1191
1192         return ret;
1193 }
1194
1195 static void __exit fujitsu_cleanup(void)
1196 {
1197         acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver);
1198
1199         kfree(fujitsu_hotkey);
1200
1201         platform_driver_unregister(&fujitsupf_driver);
1202
1203         if (fujitsu->bl_device)
1204                 backlight_device_unregister(fujitsu->bl_device);
1205
1206         sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1207                            &fujitsupf_attribute_group);
1208
1209         platform_device_unregister(fujitsu->pf_device);
1210
1211         acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1212
1213         kfree(fujitsu);
1214
1215         printk(KERN_INFO "fujitsu-laptop: driver unloaded.\n");
1216 }
1217
1218 module_init(fujitsu_init);
1219 module_exit(fujitsu_cleanup);
1220
1221 module_param(use_alt_lcd_levels, uint, 0644);
1222 MODULE_PARM_DESC(use_alt_lcd_levels,
1223                  "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
1224 module_param(disable_brightness_adjust, uint, 0644);
1225 MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment .");
1226 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
1227 module_param_named(debug, dbg_level, uint, 0644);
1228 MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
1229 #endif
1230
1231 MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
1232 MODULE_DESCRIPTION("Fujitsu laptop extras support");
1233 MODULE_VERSION(FUJITSU_DRIVER_VERSION);
1234 MODULE_LICENSE("GPL");
1235
1236 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
1237 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
1238 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
1239
1240 static struct pnp_device_id pnp_ids[] = {
1241         {.id = "FUJ02bf"},
1242         {.id = "FUJ02B1"},
1243         {.id = "FUJ02E3"},
1244         {.id = ""}
1245 };
1246
1247 MODULE_DEVICE_TABLE(pnp, pnp_ids);