drivers/platform/x86/fujitsu-laptop.c

   1 /*-*-linux-c-*-*/
   2
   3 /*
   4   Copyright (C) 2007,2008 Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
   5   Copyright (C) 2008 Peter Gruber <nokos@gmx.net>
   6   Copyright (C) 2008 Tony Vroon <tony@linx.net>
   7   Based on earlier work:
   8     Copyright (C) 2003 Shane Spencer <shane@bogomip.com>
   9     Adrian Yee <brewt-fujitsu@brewt.org>
  10
  11   Templated from msi-laptop.c and thinkpad_acpi.c which is copyright
  12   by its respective authors.
  13
  14   This program is free software; you can redistribute it and/or modify
  15   it under the terms of the GNU General Public License as published by
  16   the Free Software Foundation; either version 2 of the License, or
  17   (at your option) any later version.
  18
  19   This program is distributed in the hope that it will be useful, but
  20   WITHOUT ANY WARRANTY; without even the implied warranty of
  21   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22   General Public License for more details.
  23
  24   You should have received a copy of the GNU General Public License
  25   along with this program; if not, write to the Free Software
  26   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  27   02110-1301, USA.
  28  */
  29
  30 /*
  31  * fujitsu-laptop.c - Fujitsu laptop support, providing access to additional
  32  * features made available on a range of Fujitsu laptops including the
  33  * P2xxx/P5xxx/S6xxx/S7xxx series.
  34  *
  35  * This driver exports a few files in /sys/devices/platform/fujitsu-laptop/;
  36  * others may be added at a later date.
  37  *
  38  *   lcd_level - Screen brightness: contains a single integer in the
  39  *   range 0..7. (rw)
  40  *
  41  * In addition to these platform device attributes the driver
  42  * registers itself in the Linux backlight control subsystem and is
  43  * available to userspace under /sys/class/backlight/fujitsu-laptop/.
  44  *
  45  * Hotkeys present on certain Fujitsu laptops (eg: the S6xxx series) are
  46  * also supported by this driver.
  47  *
  48  * This driver has been tested on a Fujitsu Lifebook S6410, S7020 and
  49  * P8010.  It should work on most P-series and S-series Lifebooks, but
  50  * YMMV.
  51  *
  52  * The module parameter use_alt_lcd_levels switches between different ACPI
  53  * brightness controls which are used by different Fujitsu laptops.  In most
  54  * cases the correct method is automatically detected. "use_alt_lcd_levels=1"
  55  * is applicable for a Fujitsu Lifebook S6410 if autodetection fails.
  56  *
  57  */
  58
  59 #include <linux/module.h>
  60 #include <linux/kernel.h>
  61 #include <linux/init.h>
  62 #include <linux/acpi.h>
  63 #include <linux/dmi.h>
  64 #include <linux/backlight.h>
  65 #include <linux/input.h>
  66 #include <linux/kfifo.h>
  67 #include <linux/video_output.h>
  68 #include <linux/platform_device.h>
  69 #ifdef CONFIG_LEDS_CLASS
  70 #include <linux/leds.h>
  71 #endif
  72
  73 #define FUJITSU_DRIVER_VERSION "0.5.0"
  74
  75 #define FUJITSU_LCD_N_LEVELS 8
  76
  77 #define ACPI_FUJITSU_CLASS              "fujitsu"
  78 #define ACPI_FUJITSU_HID                "FUJ02B1"
  79 #define ACPI_FUJITSU_DRIVER_NAME        "Fujitsu laptop FUJ02B1 ACPI brightness driver"
  80 #define ACPI_FUJITSU_DEVICE_NAME        "Fujitsu FUJ02B1"
  81 #define ACPI_FUJITSU_HOTKEY_HID         "FUJ02E3"
  82 #define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver"
  83 #define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3"
  84
  85 #define ACPI_FUJITSU_NOTIFY_CODE1     0x80
  86
  87 #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS     0x86
  88 #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS     0x87
  89
  90 /* FUNC interface - command values */
  91 #define FUNC_RFKILL     0x1000
  92 #define FUNC_LEDS       0x1001
  93 #define FUNC_BUTTONS    0x1002
  94 #define FUNC_BACKLIGHT  0x1004
  95
  96 /* FUNC interface - responses */
  97 #define UNSUPPORTED_CMD 0x80000000
  98
  99 #ifdef CONFIG_LEDS_CLASS
 100 /* FUNC interface - LED control */
 101 #define FUNC_LED_OFF    0x1
 102 #define FUNC_LED_ON     0x30001
 103 #define KEYBOARD_LAMPS  0x100
 104 #define LOGOLAMP_POWERON 0x2000
 105 #define LOGOLAMP_ALWAYS  0x4000
 106 #endif
 107
 108 /* Hotkey details */
 109 #define KEY1_CODE       0x410   /* codes for the keys in the GIRB register */
 110 #define KEY2_CODE       0x411
 111 #define KEY3_CODE       0x412
 112 #define KEY4_CODE       0x413
 113
 114 #define MAX_HOTKEY_RINGBUFFER_SIZE 100
 115 #define RINGBUFFERSIZE 40
 116
 117 /* Debugging */
 118 #define FUJLAPTOP_LOG      ACPI_FUJITSU_HID ": "
 119 #define FUJLAPTOP_ERR      KERN_ERR FUJLAPTOP_LOG
 120 #define FUJLAPTOP_NOTICE   KERN_NOTICE FUJLAPTOP_LOG
 121 #define FUJLAPTOP_INFO     KERN_INFO FUJLAPTOP_LOG
 122 #define FUJLAPTOP_DEBUG    KERN_DEBUG FUJLAPTOP_LOG
 123
 124 #define FUJLAPTOP_DBG_ALL         0xffff
 125 #define FUJLAPTOP_DBG_ERROR       0x0001
 126 #define FUJLAPTOP_DBG_WARN        0x0002
 127 #define FUJLAPTOP_DBG_INFO        0x0004
 128 #define FUJLAPTOP_DBG_TRACE       0x0008
 129
 130 #define dbg_printk(a_dbg_level, format, arg...) \
 131         do { if (dbg_level & a_dbg_level) \
 132                 printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \
 133         } while (0)
 134 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
 135 #define vdbg_printk(a_dbg_level, format, arg...) \
 136         dbg_printk(a_dbg_level, format, ## arg)
 137 #else
 138 #define vdbg_printk(a_dbg_level, format, arg...)
 139 #endif
 140
 141 /* Device controlling the backlight and associated keys */
 142 struct fujitsu_t {
 143         acpi_handle acpi_handle;
 144         struct acpi_device *dev;
 145         struct input_dev *input;
 146         char phys[32];
 147         struct backlight_device *bl_device;
 148         struct platform_device *pf_device;
 149         int keycode1, keycode2, keycode3, keycode4;
 150
 151         unsigned int max_brightness;
 152         unsigned int brightness_changed;
 153         unsigned int brightness_level;
 154 };
 155
 156 static struct fujitsu_t *fujitsu;
 157 static int use_alt_lcd_levels = -1;
 158 static int disable_brightness_adjust = -1;
 159
 160 /* Device used to access other hotkeys on the laptop */
 161 struct fujitsu_hotkey_t {
 162         acpi_handle acpi_handle;
 163         struct acpi_device *dev;
 164         struct input_dev *input;
 165         char phys[32];
 166         struct platform_device *pf_device;
 167         struct kfifo *fifo;
 168         spinlock_t fifo_lock;
 169         int rfkill_supported;
 170         int rfkill_state;
 171         int logolamp_registered;
 172         int kblamps_registered;
 173 };
 174
 175 static struct fujitsu_hotkey_t *fujitsu_hotkey;
 176
 177 static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
 178                                        void *data);
 179
 180 #ifdef CONFIG_LEDS_CLASS
 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 #ifdef CONFIG_LEDS_CLASS
 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         if (!fujitsu)
 329                 return -EINVAL;
 330
 331         status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle);
 332         if (ACPI_FAILURE(status)) {
 333                 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n");
 334                 return -ENODEV;
 335         }
 336
 337         arg0.integer.value = level;
 338
 339         status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
 340         if (ACPI_FAILURE(status))
 341                 return -ENODEV;
 342
 343         return 0;
 344 }
 345
 346 static int set_lcd_level_alt(int level)
 347 {
 348         acpi_status status = AE_OK;
 349         union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 350         struct acpi_object_list arg_list = { 1, &arg0 };
 351         acpi_handle handle = NULL;
 352
 353         vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n",
 354                     level);
 355
 356         if (level < 0 || level >= fujitsu->max_brightness)
 357                 return -EINVAL;
 358
 359         if (!fujitsu)
 360                 return -EINVAL;
 361
 362         status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle);
 363         if (ACPI_FAILURE(status)) {
 364                 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n");
 365                 return -ENODEV;
 366         }
 367
 368         arg0.integer.value = level;
 369
 370         status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
 371         if (ACPI_FAILURE(status))
 372                 return -ENODEV;
 373
 374         return 0;
 375 }
 376
 377 static int get_lcd_level(void)
 378 {
 379         unsigned long long state = 0;
 380         acpi_status status = AE_OK;
 381
 382         vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n");
 383
 384         status =
 385             acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
 386         if (status < 0)
 387                 return status;
 388
 389         fujitsu->brightness_level = state & 0x0fffffff;
 390
 391         if (state & 0x80000000)
 392                 fujitsu->brightness_changed = 1;
 393         else
 394                 fujitsu->brightness_changed = 0;
 395
 396         return fujitsu->brightness_level;
 397 }
 398
 399 static int get_max_brightness(void)
 400 {
 401         unsigned long long state = 0;
 402         acpi_status status = AE_OK;
 403
 404         vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n");
 405
 406         status =
 407             acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state);
 408         if (status < 0)
 409                 return status;
 410
 411         fujitsu->max_brightness = state;
 412
 413         return fujitsu->max_brightness;
 414 }
 415
 416 /* Backlight device stuff */
 417
 418 static int bl_get_brightness(struct backlight_device *b)
 419 {
 420         return get_lcd_level();
 421 }
 422
 423 static int bl_update_status(struct backlight_device *b)
 424 {
 425         int ret;
 426         if (b->props.power == 4)
 427                 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
 428         else
 429                 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
 430         if (ret != 0)
 431                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 432                         "Unable to adjust backlight power, error code %i\n",
 433                         ret);
 434
 435         if (use_alt_lcd_levels)
 436                 ret = set_lcd_level_alt(b->props.brightness);
 437         else
 438                 ret = set_lcd_level(b->props.brightness);
 439         if (ret != 0)
 440                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 441                         "Unable to adjust LCD brightness, error code %i\n",
 442                         ret);
 443         return ret;
 444 }
 445
 446 static struct backlight_ops fujitsubl_ops = {
 447         .get_brightness = bl_get_brightness,
 448         .update_status = bl_update_status,
 449 };
 450
 451 /* Platform LCD brightness device */
 452
 453 static ssize_t
 454 show_max_brightness(struct device *dev,
 455                     struct device_attribute *attr, char *buf)
 456 {
 457
 458         int ret;
 459
 460         ret = get_max_brightness();
 461         if (ret < 0)
 462                 return ret;
 463
 464         return sprintf(buf, "%i\n", ret);
 465 }
 466
 467 static ssize_t
 468 show_brightness_changed(struct device *dev,
 469                         struct device_attribute *attr, char *buf)
 470 {
 471
 472         int ret;
 473
 474         ret = fujitsu->brightness_changed;
 475         if (ret < 0)
 476                 return ret;
 477
 478         return sprintf(buf, "%i\n", ret);
 479 }
 480
 481 static ssize_t show_lcd_level(struct device *dev,
 482                               struct device_attribute *attr, char *buf)
 483 {
 484
 485         int ret;
 486
 487         ret = get_lcd_level();
 488         if (ret < 0)
 489                 return ret;
 490
 491         return sprintf(buf, "%i\n", ret);
 492 }
 493
 494 static ssize_t store_lcd_level(struct device *dev,
 495                                struct device_attribute *attr, const char *buf,
 496                                size_t count)
 497 {
 498
 499         int level, ret;
 500
 501         if (sscanf(buf, "%i", &level) != 1
 502             || (level < 0 || level >= fujitsu->max_brightness))
 503                 return -EINVAL;
 504
 505         if (use_alt_lcd_levels)
 506                 ret = set_lcd_level_alt(level);
 507         else
 508                 ret = set_lcd_level(level);
 509         if (ret < 0)
 510                 return ret;
 511
 512         ret = get_lcd_level();
 513         if (ret < 0)
 514                 return ret;
 515
 516         return count;
 517 }
 518
 519 static ssize_t
 520 ignore_store(struct device *dev,
 521              struct device_attribute *attr, const char *buf, size_t count)
 522 {
 523         return count;
 524 }
 525
 526 static ssize_t
 527 show_lid_state(struct device *dev,
 528                         struct device_attribute *attr, char *buf)
 529 {
 530         if (!(fujitsu_hotkey->rfkill_supported & 0x100))
 531                 return sprintf(buf, "unknown\n");
 532         if (fujitsu_hotkey->rfkill_state & 0x100)
 533                 return sprintf(buf, "open\n");
 534         else
 535                 return sprintf(buf, "closed\n");
 536 }
 537
 538 static ssize_t
 539 show_dock_state(struct device *dev,
 540                         struct device_attribute *attr, char *buf)
 541 {
 542         if (!(fujitsu_hotkey->rfkill_supported & 0x200))
 543                 return sprintf(buf, "unknown\n");
 544         if (fujitsu_hotkey->rfkill_state & 0x200)
 545                 return sprintf(buf, "docked\n");
 546         else
 547                 return sprintf(buf, "undocked\n");
 548 }
 549
 550 static ssize_t
 551 show_radios_state(struct device *dev,
 552                         struct device_attribute *attr, char *buf)
 553 {
 554         if (!(fujitsu_hotkey->rfkill_supported & 0x20))
 555                 return sprintf(buf, "unknown\n");
 556         if (fujitsu_hotkey->rfkill_state & 0x20)
 557                 return sprintf(buf, "on\n");
 558         else
 559                 return sprintf(buf, "killed\n");
 560 }
 561
 562 static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store);
 563 static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed,
 564                    ignore_store);
 565 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 566 static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store);
 567 static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store);
 568 static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store);
 569
 570 static struct attribute *fujitsupf_attributes[] = {
 571         &dev_attr_brightness_changed.attr,
 572         &dev_attr_max_brightness.attr,
 573         &dev_attr_lcd_level.attr,
 574         &dev_attr_lid.attr,
 575         &dev_attr_dock.attr,
 576         &dev_attr_radios.attr,
 577         NULL
 578 };
 579
 580 static struct attribute_group fujitsupf_attribute_group = {
 581         .attrs = fujitsupf_attributes
 582 };
 583
 584 static struct platform_driver fujitsupf_driver = {
 585         .driver = {
 586                    .name = "fujitsu-laptop",
 587                    .owner = THIS_MODULE,
 588                    }
 589 };
 590
 591 static void dmi_check_cb_common(const struct dmi_system_id *id)
 592 {
 593         acpi_handle handle;
 594         printk(KERN_INFO "fujitsu-laptop: Identified laptop model '%s'.\n",
 595                id->ident);
 596         if (use_alt_lcd_levels == -1) {
 597                 if (ACPI_SUCCESS(acpi_get_handle(NULL,
 598                                 "\\_SB.PCI0.LPCB.FJEX.SBL2", &handle)))
 599                         use_alt_lcd_levels = 1;
 600                 else
 601                         use_alt_lcd_levels = 0;
 602                 vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as "
 603                         "%i\n", use_alt_lcd_levels);
 604         }
 605 }
 606
 607 static int dmi_check_cb_s6410(const struct dmi_system_id *id)
 608 {
 609         dmi_check_cb_common(id);
 610         fujitsu->keycode1 = KEY_SCREENLOCK;     /* "Lock" */
 611         fujitsu->keycode2 = KEY_HELP;   /* "Mobility Center" */
 612         return 0;
 613 }
 614
 615 static int dmi_check_cb_s6420(const struct dmi_system_id *id)
 616 {
 617         dmi_check_cb_common(id);
 618         fujitsu->keycode1 = KEY_SCREENLOCK;     /* "Lock" */
 619         fujitsu->keycode2 = KEY_HELP;   /* "Mobility Center" */
 620         return 0;
 621 }
 622
 623 static int dmi_check_cb_p8010(const struct dmi_system_id *id)
 624 {
 625         dmi_check_cb_common(id);
 626         fujitsu->keycode1 = KEY_HELP;   /* "Support" */
 627         fujitsu->keycode3 = KEY_SWITCHVIDEOMODE;        /* "Presentation" */
 628         fujitsu->keycode4 = KEY_WWW;    /* "Internet" */
 629         return 0;
 630 }
 631
 632 static struct dmi_system_id fujitsu_dmi_table[] = {
 633         {
 634          .ident = "Fujitsu Siemens S6410",
 635          .matches = {
 636                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 637                      DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"),
 638                      },
 639          .callback = dmi_check_cb_s6410},
 640         {
 641          .ident = "Fujitsu Siemens S6420",
 642          .matches = {
 643                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 644                      DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"),
 645                      },
 646          .callback = dmi_check_cb_s6420},
 647         {
 648          .ident = "Fujitsu LifeBook P8010",
 649          .matches = {
 650                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 651                      DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"),
 652                      },
 653          .callback = dmi_check_cb_p8010},
 654         {}
 655 };
 656
 657 /* ACPI device for LCD brightness control */
 658
 659 static int acpi_fujitsu_add(struct acpi_device *device)
 660 {
 661         acpi_handle handle;
 662         int result = 0;
 663         int state = 0;
 664         struct input_dev *input;
 665         int error;
 666
 667         if (!device)
 668                 return -EINVAL;
 669
 670         fujitsu->acpi_handle = device->handle;
 671         sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME);
 672         sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
 673         device->driver_data = fujitsu;
 674
 675         fujitsu->input = input = input_allocate_device();
 676         if (!input) {
 677                 error = -ENOMEM;
 678                 goto err_stop;
 679         }
 680
 681         snprintf(fujitsu->phys, sizeof(fujitsu->phys),
 682                  "%s/video/input0", acpi_device_hid(device));
 683
 684         input->name = acpi_device_name(device);
 685         input->phys = fujitsu->phys;
 686         input->id.bustype = BUS_HOST;
 687         input->id.product = 0x06;
 688         input->dev.parent = &device->dev;
 689         input->evbit[0] = BIT(EV_KEY);
 690         set_bit(KEY_BRIGHTNESSUP, input->keybit);
 691         set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
 692         set_bit(KEY_UNKNOWN, input->keybit);
 693
 694         error = input_register_device(input);
 695         if (error)
 696                 goto err_free_input_dev;
 697
 698         result = acpi_bus_get_power(fujitsu->acpi_handle, &state);
 699         if (result) {
 700                 printk(KERN_ERR "Error reading power state\n");
 701                 goto end;
 702         }
 703
 704         printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
 705                acpi_device_name(device), acpi_device_bid(device),
 706                !device->power.state ? "on" : "off");
 707
 708         fujitsu->dev = device;
 709
 710         if (ACPI_SUCCESS
 711             (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
 712                 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
 713                 if (ACPI_FAILURE
 714                     (acpi_evaluate_object
 715                      (device->handle, METHOD_NAME__INI, NULL, NULL)))
 716                         printk(KERN_ERR "_INI Method failed\n");
 717         }
 718
 719         /* do config (detect defaults) */
 720         use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
 721         disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
 722         vdbg_printk(FUJLAPTOP_DBG_INFO,
 723                     "config: [alt interface: %d], [adjust disable: %d]\n",
 724                     use_alt_lcd_levels, disable_brightness_adjust);
 725
 726         if (get_max_brightness() <= 0)
 727                 fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS;
 728         get_lcd_level();
 729
 730         return result;
 731
 732 end:
 733 err_free_input_dev:
 734         input_free_device(input);
 735 err_stop:
 736
 737         return result;
 738 }
 739
 740 static int acpi_fujitsu_remove(struct acpi_device *device, int type)
 741 {
 742         struct fujitsu_t *fujitsu = NULL;
 743
 744         if (!device || !acpi_driver_data(device))
 745                 return -EINVAL;
 746
 747         fujitsu = acpi_driver_data(device);
 748
 749         if (!device || !acpi_driver_data(device))
 750                 return -EINVAL;
 751
 752         fujitsu->acpi_handle = NULL;
 753
 754         return 0;
 755 }
 756
 757 /* Brightness notify */
 758
 759 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
 760 {
 761         struct input_dev *input;
 762         int keycode;
 763         int oldb, newb;
 764
 765         input = fujitsu->input;
 766
 767         switch (event) {
 768         case ACPI_FUJITSU_NOTIFY_CODE1:
 769                 keycode = 0;
 770                 oldb = fujitsu->brightness_level;
 771                 get_lcd_level();
 772                 newb = fujitsu->brightness_level;
 773
 774                 vdbg_printk(FUJLAPTOP_DBG_TRACE,
 775                             "brightness button event [%i -> %i (%i)]\n",
 776                             oldb, newb, fujitsu->brightness_changed);
 777
 778                 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_INC_BRIGHTNESS, 0);
 787                         keycode = KEY_BRIGHTNESSUP;
 788                 } else if (oldb > newb) {
 789                         if (disable_brightness_adjust != 1) {
 790                                 if (use_alt_lcd_levels)
 791                                         set_lcd_level_alt(newb);
 792                                 else
 793                                         set_lcd_level(newb);
 794                         }
 795                         acpi_bus_generate_proc_event(fujitsu->dev,
 796                                 ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0);
 797                         keycode = KEY_BRIGHTNESSDOWN;
 798                 }
 799                 break;
 800         default:
 801                 keycode = KEY_UNKNOWN;
 802                 vdbg_printk(FUJLAPTOP_DBG_WARN,
 803                             "unsupported event [0x%x]\n", event);
 804                 break;
 805         }
 806
 807         if (keycode != 0) {
 808                 input_report_key(input, keycode, 1);
 809                 input_sync(input);
 810                 input_report_key(input, keycode, 0);
 811                 input_sync(input);
 812         }
 813 }
 814
 815 /* ACPI device for hotkey handling */
 816
 817 static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
 818 {
 819         acpi_status status;
 820         acpi_handle handle;
 821         int result = 0;
 822         int state = 0;
 823         struct input_dev *input;
 824         int error;
 825         int i;
 826
 827         if (!device)
 828                 return -EINVAL;
 829
 830         fujitsu_hotkey->acpi_handle = device->handle;
 831         sprintf(acpi_device_name(device), "%s",
 832                 ACPI_FUJITSU_HOTKEY_DEVICE_NAME);
 833         sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
 834         device->driver_data = fujitsu_hotkey;
 835
 836         status = acpi_install_notify_handler(device->handle,
 837                                              ACPI_DEVICE_NOTIFY,
 838                                              acpi_fujitsu_hotkey_notify,
 839                                              fujitsu_hotkey);
 840
 841         if (ACPI_FAILURE(status)) {
 842                 printk(KERN_ERR "Error installing notify handler\n");
 843                 error = -ENODEV;
 844                 goto err_stop;
 845         }
 846
 847         /* kfifo */
 848         spin_lock_init(&fujitsu_hotkey->fifo_lock);
 849         fujitsu_hotkey->fifo =
 850             kfifo_alloc(RINGBUFFERSIZE * sizeof(int), GFP_KERNEL,
 851                         &fujitsu_hotkey->fifo_lock);
 852         if (IS_ERR(fujitsu_hotkey->fifo)) {
 853                 printk(KERN_ERR "kfifo_alloc failed\n");
 854                 error = PTR_ERR(fujitsu_hotkey->fifo);
 855                 goto err_stop;
 856         }
 857
 858         fujitsu_hotkey->input = input = input_allocate_device();
 859         if (!input) {
 860                 error = -ENOMEM;
 861                 goto err_uninstall_notify;
 862         }
 863
 864         snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys),
 865                  "%s/video/input0", acpi_device_hid(device));
 866
 867         input->name = acpi_device_name(device);
 868         input->phys = fujitsu_hotkey->phys;
 869         input->id.bustype = BUS_HOST;
 870         input->id.product = 0x06;
 871         input->dev.parent = &device->dev;
 872
 873         set_bit(EV_KEY, input->evbit);
 874         set_bit(fujitsu->keycode1, input->keybit);
 875         set_bit(fujitsu->keycode2, input->keybit);
 876         set_bit(fujitsu->keycode3, input->keybit);
 877         set_bit(fujitsu->keycode4, input->keybit);
 878         set_bit(KEY_UNKNOWN, input->keybit);
 879
 880         error = input_register_device(input);
 881         if (error)
 882                 goto err_free_input_dev;
 883
 884         result = acpi_bus_get_power(fujitsu_hotkey->acpi_handle, &state);
 885         if (result) {
 886                 printk(KERN_ERR "Error reading power state\n");
 887                 goto end;
 888         }
 889
 890         printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
 891                acpi_device_name(device), acpi_device_bid(device),
 892                !device->power.state ? "on" : "off");
 893
 894         fujitsu_hotkey->dev = device;
 895
 896         if (ACPI_SUCCESS
 897             (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
 898                 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
 899                 if (ACPI_FAILURE
 900                     (acpi_evaluate_object
 901                      (device->handle, METHOD_NAME__INI, NULL, NULL)))
 902                         printk(KERN_ERR "_INI Method failed\n");
 903         }
 904
 905         i = 0;
 906         while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0
 907                 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE)
 908                 ; /* No action, result is discarded */
 909         vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i);
 910
 911         fujitsu_hotkey->rfkill_supported =
 912                 call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0);
 913
 914         /* Make sure our bitmask of supported functions is cleared if the
 915            RFKILL function block is not implemented, like on the S7020. */
 916         if (fujitsu_hotkey->rfkill_supported == UNSUPPORTED_CMD)
 917                 fujitsu_hotkey->rfkill_supported = 0;
 918
 919         if (fujitsu_hotkey->rfkill_supported)
 920                 fujitsu_hotkey->rfkill_state =
 921                         call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
 922
 923         /* Suspect this is a keymap of the application panel, print it */
 924         printk(KERN_INFO "fujitsu-laptop: BTNI: [0x%x]\n",
 925                 call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
 926
 927         #ifdef CONFIG_LEDS_CLASS
 928         if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
 929                 result = led_classdev_register(&fujitsu->pf_device->dev,
 930                                                 &logolamp_led);
 931                 if (result == 0) {
 932                         fujitsu_hotkey->logolamp_registered = 1;
 933                 } else {
 934                         printk(KERN_ERR "fujitsu-laptop: Could not register "
 935                         "LED handler for logo lamp, error %i\n", result);
 936                 }
 937         }
 938
 939         if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
 940            (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
 941                 result = led_classdev_register(&fujitsu->pf_device->dev,
 942                                                 &kblamps_led);
 943                 if (result == 0) {
 944                         fujitsu_hotkey->kblamps_registered = 1;
 945                 } else {
 946                         printk(KERN_ERR "fujitsu-laptop: Could not register "
 947                         "LED handler for keyboard lamps, error %i\n", result);
 948                 }
 949         }
 950         #endif
 951
 952         return result;
 953
 954 end:
 955 err_free_input_dev:
 956         input_free_device(input);
 957 err_uninstall_notify:
 958         acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
 959                                    acpi_fujitsu_hotkey_notify);
 960         kfifo_free(fujitsu_hotkey->fifo);
 961 err_stop:
 962
 963         return result;
 964 }
 965
 966 static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type)
 967 {
 968         acpi_status status;
 969         struct fujitsu_hotkey_t *fujitsu_hotkey = NULL;
 970
 971         if (!device || !acpi_driver_data(device))
 972                 return -EINVAL;
 973
 974         fujitsu_hotkey = acpi_driver_data(device);
 975
 976         status = acpi_remove_notify_handler(fujitsu_hotkey->acpi_handle,
 977                                             ACPI_DEVICE_NOTIFY,
 978                                             acpi_fujitsu_hotkey_notify);
 979
 980         fujitsu_hotkey->acpi_handle = NULL;
 981
 982         kfifo_free(fujitsu_hotkey->fifo);
 983
 984         return 0;
 985 }
 986
 987 static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
 988                                        void *data)
 989 {
 990         struct input_dev *input;
 991         int keycode, keycode_r;
 992         unsigned int irb = 1;
 993         int i, status;
 994
 995         input = fujitsu_hotkey->input;
 996
 997         if (fujitsu_hotkey->rfkill_supported)
 998                 fujitsu_hotkey->rfkill_state =
 999                         call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
1000
1001         switch (event) {
1002         case ACPI_FUJITSU_NOTIFY_CODE1:
1003                 i = 0;
1004                 while ((irb =
1005                         call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0
1006                                 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
1007                         switch (irb & 0x4ff) {
1008                         case KEY1_CODE:
1009                                 keycode = fujitsu->keycode1;
1010                                 break;
1011                         case KEY2_CODE:
1012                                 keycode = fujitsu->keycode2;
1013                                 break;
1014                         case KEY3_CODE:
1015                                 keycode = fujitsu->keycode3;
1016                                 break;
1017                         case KEY4_CODE:
1018                                 keycode = fujitsu->keycode4;
1019                                 break;
1020                         case 0:
1021                                 keycode = 0;
1022                                 break;
1023                         default:
1024                                 vdbg_printk(FUJLAPTOP_DBG_WARN,
1025                                             "Unknown GIRB result [%x]\n", irb);
1026                                 keycode = -1;
1027                                 break;
1028                         }
1029                         if (keycode > 0) {
1030                                 vdbg_printk(FUJLAPTOP_DBG_TRACE,
1031                                         "Push keycode into ringbuffer [%d]\n",
1032                                         keycode);
1033                                 status = kfifo_put(fujitsu_hotkey->fifo,
1034                                                    (unsigned char *)&keycode,
1035                                                    sizeof(keycode));
1036                                 if (status != sizeof(keycode)) {
1037                                         vdbg_printk(FUJLAPTOP_DBG_WARN,
1038                                             "Could not push keycode [0x%x]\n",
1039                                             keycode);
1040                                 } else {
1041                                         input_report_key(input, keycode, 1);
1042                                         input_sync(input);
1043                                 }
1044                         } else if (keycode == 0) {
1045                                 while ((status =
1046                                         kfifo_get
1047                                         (fujitsu_hotkey->fifo, (unsigned char *)
1048                                          &keycode_r,
1049                                          sizeof
1050                                          (keycode_r))) == sizeof(keycode_r)) {
1051                                         input_report_key(input, keycode_r, 0);
1052                                         input_sync(input);
1053                                         vdbg_printk(FUJLAPTOP_DBG_TRACE,
1054                                           "Pop keycode from ringbuffer [%d]\n",
1055                                           keycode_r);
1056                                 }
1057                         }
1058                 }
1059
1060                 break;
1061         default:
1062                 keycode = KEY_UNKNOWN;
1063                 vdbg_printk(FUJLAPTOP_DBG_WARN,
1064                             "Unsupported event [0x%x]\n", event);
1065                 input_report_key(input, keycode, 1);
1066                 input_sync(input);
1067                 input_report_key(input, keycode, 0);
1068                 input_sync(input);
1069                 break;
1070         }
1071
1072         return;
1073 }
1074
1075 /* Initialization */
1076
1077 static const struct acpi_device_id fujitsu_device_ids[] = {
1078         {ACPI_FUJITSU_HID, 0},
1079         {"", 0},
1080 };
1081
1082 static struct acpi_driver acpi_fujitsu_driver = {
1083         .name = ACPI_FUJITSU_DRIVER_NAME,
1084         .class = ACPI_FUJITSU_CLASS,
1085         .ids = fujitsu_device_ids,
1086         .ops = {
1087                 .add = acpi_fujitsu_add,
1088                 .remove = acpi_fujitsu_remove,
1089                 .notify = acpi_fujitsu_notify,
1090                 },
1091 };
1092
1093 static const struct acpi_device_id fujitsu_hotkey_device_ids[] = {
1094         {ACPI_FUJITSU_HOTKEY_HID, 0},
1095         {"", 0},
1096 };
1097
1098 static struct acpi_driver acpi_fujitsu_hotkey_driver = {
1099         .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME,
1100         .class = ACPI_FUJITSU_CLASS,
1101         .ids = fujitsu_hotkey_device_ids,
1102         .ops = {
1103                 .add = acpi_fujitsu_hotkey_add,
1104                 .remove = acpi_fujitsu_hotkey_remove,
1105                 },
1106 };
1107
1108 static int __init fujitsu_init(void)
1109 {
1110         int ret, result, max_brightness;
1111
1112         if (acpi_disabled)
1113                 return -ENODEV;
1114
1115         fujitsu = kmalloc(sizeof(struct fujitsu_t), GFP_KERNEL);
1116         if (!fujitsu)
1117                 return -ENOMEM;
1118         memset(fujitsu, 0, sizeof(struct fujitsu_t));
1119         fujitsu->keycode1 = KEY_PROG1;
1120         fujitsu->keycode2 = KEY_PROG2;
1121         fujitsu->keycode3 = KEY_PROG3;
1122         fujitsu->keycode4 = KEY_PROG4;
1123         dmi_check_system(fujitsu_dmi_table);
1124
1125         result = acpi_bus_register_driver(&acpi_fujitsu_driver);
1126         if (result < 0) {
1127                 ret = -ENODEV;
1128                 goto fail_acpi;
1129         }
1130
1131         /* Register platform stuff */
1132
1133         fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1);
1134         if (!fujitsu->pf_device) {
1135                 ret = -ENOMEM;
1136                 goto fail_platform_driver;
1137         }
1138
1139         ret = platform_device_add(fujitsu->pf_device);
1140         if (ret)
1141                 goto fail_platform_device1;
1142
1143         ret =
1144             sysfs_create_group(&fujitsu->pf_device->dev.kobj,
1145                                &fujitsupf_attribute_group);
1146         if (ret)
1147                 goto fail_platform_device2;
1148
1149         /* Register backlight stuff */
1150
1151         if (!acpi_video_backlight_support()) {
1152                 fujitsu->bl_device =
1153                         backlight_device_register("fujitsu-laptop", NULL, NULL,
1154                                                   &fujitsubl_ops);
1155                 if (IS_ERR(fujitsu->bl_device))
1156                         return PTR_ERR(fujitsu->bl_device);
1157                 max_brightness = fujitsu->max_brightness;
1158                 fujitsu->bl_device->props.max_brightness = max_brightness - 1;
1159                 fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
1160         }
1161
1162         ret = platform_driver_register(&fujitsupf_driver);
1163         if (ret)
1164                 goto fail_backlight;
1165
1166         /* Register hotkey driver */
1167
1168         fujitsu_hotkey = kmalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL);
1169         if (!fujitsu_hotkey) {
1170                 ret = -ENOMEM;
1171                 goto fail_hotkey;
1172         }
1173         memset(fujitsu_hotkey, 0, sizeof(struct fujitsu_hotkey_t));
1174
1175         result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver);
1176         if (result < 0) {
1177                 ret = -ENODEV;
1178                 goto fail_hotkey1;
1179         }
1180
1181         /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
1182
1183         if (!acpi_video_backlight_support()) {
1184                 if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3)
1185                         fujitsu->bl_device->props.power = 4;
1186                 else
1187                         fujitsu->bl_device->props.power = 0;
1188         }
1189
1190         printk(KERN_INFO "fujitsu-laptop: driver " FUJITSU_DRIVER_VERSION
1191                " successfully loaded.\n");
1192
1193         return 0;
1194
1195 fail_hotkey1:
1196
1197         kfree(fujitsu_hotkey);
1198
1199 fail_hotkey:
1200
1201         platform_driver_unregister(&fujitsupf_driver);
1202
1203 fail_backlight:
1204
1205         if (fujitsu->bl_device)
1206                 backlight_device_unregister(fujitsu->bl_device);
1207
1208 fail_platform_device2:
1209
1210         platform_device_del(fujitsu->pf_device);
1211
1212 fail_platform_device1:
1213
1214         platform_device_put(fujitsu->pf_device);
1215
1216 fail_platform_driver:
1217
1218         acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1219
1220 fail_acpi:
1221
1222         kfree(fujitsu);
1223
1224         return ret;
1225 }
1226
1227 static void __exit fujitsu_cleanup(void)
1228 {
1229         #ifdef CONFIG_LEDS_CLASS
1230         if (fujitsu_hotkey->logolamp_registered != 0)
1231                 led_classdev_unregister(&logolamp_led);
1232
1233         if (fujitsu_hotkey->kblamps_registered != 0)
1234                 led_classdev_unregister(&kblamps_led);
1235         #endif
1236
1237         sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1238                            &fujitsupf_attribute_group);
1239         platform_device_unregister(fujitsu->pf_device);
1240         platform_driver_unregister(&fujitsupf_driver);
1241         if (fujitsu->bl_device)
1242                 backlight_device_unregister(fujitsu->bl_device);
1243
1244         acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1245
1246         kfree(fujitsu);
1247
1248         acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver);
1249
1250         kfree(fujitsu_hotkey);
1251
1252         printk(KERN_INFO "fujitsu-laptop: driver unloaded.\n");
1253 }
1254
1255 module_init(fujitsu_init);
1256 module_exit(fujitsu_cleanup);
1257
1258 module_param(use_alt_lcd_levels, uint, 0644);
1259 MODULE_PARM_DESC(use_alt_lcd_levels,
1260                  "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
1261 module_param(disable_brightness_adjust, uint, 0644);
1262 MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment .");
1263 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
1264 module_param_named(debug, dbg_level, uint, 0644);
1265 MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
1266 #endif
1267
1268 MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
1269 MODULE_DESCRIPTION("Fujitsu laptop extras support");
1270 MODULE_VERSION(FUJITSU_DRIVER_VERSION);
1271 MODULE_LICENSE("GPL");
1272
1273 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
1274 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
1275 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
1276
1277 static struct pnp_device_id pnp_ids[] = {
1278         {.id = "FUJ02bf"},
1279         {.id = "FUJ02B1"},
1280         {.id = "FUJ02E3"},
1281         {.id = ""}
1282 };
1283
1284 MODULE_DEVICE_TABLE(pnp, pnp_ids);