drivers/platform/x86/fujitsu-laptop.c

   1 /*-*-linux-c-*-*/
   2
   3 /*
   4   Copyright (C) 2007,2008 Jonathan Woithe <jwoithe@physics.adelaide.edu.au>
   5   Copyright (C) 2008 Peter Gruber <nokos@gmx.net>
   6   Copyright (C) 2008 Tony Vroon <tony@linx.net>
   7   Based on earlier work:
   8     Copyright (C) 2003 Shane Spencer <shane@bogomip.com>
   9     Adrian Yee <brewt-fujitsu@brewt.org>
  10
  11   Templated from msi-laptop.c and thinkpad_acpi.c which is copyright
  12   by its respective authors.
  13
  14   This program is free software; you can redistribute it and/or modify
  15   it under the terms of the GNU General Public License as published by
  16   the Free Software Foundation; either version 2 of the License, or
  17   (at your option) any later version.
  18
  19   This program is distributed in the hope that it will be useful, but
  20   WITHOUT ANY WARRANTY; without even the implied warranty of
  21   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22   General Public License for more details.
  23
  24   You should have received a copy of the GNU General Public License
  25   along with this program; if not, write to the Free Software
  26   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  27   02110-1301, USA.
  28  */
  29
  30 /*
  31  * fujitsu-laptop.c - Fujitsu laptop support, providing access to additional
  32  * features made available on a range of Fujitsu laptops including the
  33  * P2xxx/P5xxx/S6xxx/S7xxx series.
  34  *
  35  * This driver exports a few files in /sys/devices/platform/fujitsu-laptop/;
  36  * others may be added at a later date.
  37  *
  38  *   lcd_level - Screen brightness: contains a single integer in the
  39  *   range 0..7. (rw)
  40  *
  41  * In addition to these platform device attributes the driver
  42  * registers itself in the Linux backlight control subsystem and is
  43  * available to userspace under /sys/class/backlight/fujitsu-laptop/.
  44  *
  45  * Hotkeys present on certain Fujitsu laptops (eg: the S6xxx series) are
  46  * also supported by this driver.
  47  *
  48  * This driver has been tested on a Fujitsu Lifebook S6410, S7020 and
  49  * P8010.  It should work on most P-series and S-series Lifebooks, but
  50  * YMMV.
  51  *
  52  * The module parameter use_alt_lcd_levels switches between different ACPI
  53  * brightness controls which are used by different Fujitsu laptops.  In most
  54  * cases the correct method is automatically detected. "use_alt_lcd_levels=1"
  55  * is applicable for a Fujitsu Lifebook S6410 if autodetection fails.
  56  *
  57  */
  58
  59 #include <linux/module.h>
  60 #include <linux/kernel.h>
  61 #include <linux/init.h>
  62 #include <linux/acpi.h>
  63 #include <linux/dmi.h>
  64 #include <linux/backlight.h>
  65 #include <linux/input.h>
  66 #include <linux/kfifo.h>
  67 #include <linux/video_output.h>
  68 #include <linux/platform_device.h>
  69 #ifdef CONFIG_LEDS_CLASS
  70 #include <linux/leds.h>
  71 #endif
  72
  73 #define FUJITSU_DRIVER_VERSION "0.5.0"
  74
  75 #define FUJITSU_LCD_N_LEVELS 8
  76
  77 #define ACPI_FUJITSU_CLASS              "fujitsu"
  78 #define ACPI_FUJITSU_HID                "FUJ02B1"
  79 #define ACPI_FUJITSU_DRIVER_NAME        "Fujitsu laptop FUJ02B1 ACPI brightness driver"
  80 #define ACPI_FUJITSU_DEVICE_NAME        "Fujitsu FUJ02B1"
  81 #define ACPI_FUJITSU_HOTKEY_HID         "FUJ02E3"
  82 #define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver"
  83 #define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3"
  84
  85 #define ACPI_FUJITSU_NOTIFY_CODE1     0x80
  86
  87 #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS     0x86
  88 #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS     0x87
  89
  90 /* FUNC interface - command values */
  91 #define FUNC_RFKILL     0x1000
  92 #define FUNC_LEDS       0x1001
  93 #define FUNC_BUTTONS    0x1002
  94 #define FUNC_BACKLIGHT  0x1004
  95
  96 /* FUNC interface - responses */
  97 #define UNSUPPORTED_CMD 0x80000000
  98
  99 #ifdef CONFIG_LEDS_CLASS
 100 /* FUNC interface - LED control */
 101 #define FUNC_LED_OFF    0x1
 102 #define FUNC_LED_ON     0x30001
 103 #define KEYBOARD_LAMPS  0x100
 104 #define LOGOLAMP_POWERON 0x2000
 105 #define LOGOLAMP_ALWAYS  0x4000
 106 #endif
 107
 108 /* Hotkey details */
 109 #define KEY1_CODE       0x410   /* codes for the keys in the GIRB register */
 110 #define KEY2_CODE       0x411
 111 #define KEY3_CODE       0x412
 112 #define KEY4_CODE       0x413
 113
 114 #define MAX_HOTKEY_RINGBUFFER_SIZE 100
 115 #define RINGBUFFERSIZE 40
 116
 117 /* Debugging */
 118 #define FUJLAPTOP_LOG      ACPI_FUJITSU_HID ": "
 119 #define FUJLAPTOP_ERR      KERN_ERR FUJLAPTOP_LOG
 120 #define FUJLAPTOP_NOTICE   KERN_NOTICE FUJLAPTOP_LOG
 121 #define FUJLAPTOP_INFO     KERN_INFO FUJLAPTOP_LOG
 122 #define FUJLAPTOP_DEBUG    KERN_DEBUG FUJLAPTOP_LOG
 123
 124 #define FUJLAPTOP_DBG_ALL         0xffff
 125 #define FUJLAPTOP_DBG_ERROR       0x0001
 126 #define FUJLAPTOP_DBG_WARN        0x0002
 127 #define FUJLAPTOP_DBG_INFO        0x0004
 128 #define FUJLAPTOP_DBG_TRACE       0x0008
 129
 130 #define dbg_printk(a_dbg_level, format, arg...) \
 131         do { if (dbg_level & a_dbg_level) \
 132                 printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \
 133         } while (0)
 134 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
 135 #define vdbg_printk(a_dbg_level, format, arg...) \
 136         dbg_printk(a_dbg_level, format, ## arg)
 137 #else
 138 #define vdbg_printk(a_dbg_level, format, arg...)
 139 #endif
 140
 141 /* Device controlling the backlight and associated keys */
 142 struct fujitsu_t {
 143         acpi_handle acpi_handle;
 144         struct acpi_device *dev;
 145         struct input_dev *input;
 146         char phys[32];
 147         struct backlight_device *bl_device;
 148         struct platform_device *pf_device;
 149         int keycode1, keycode2, keycode3, keycode4;
 150
 151         unsigned int max_brightness;
 152         unsigned int brightness_changed;
 153         unsigned int brightness_level;
 154 };
 155
 156 static struct fujitsu_t *fujitsu;
 157 static int use_alt_lcd_levels = -1;
 158 static int disable_brightness_adjust = -1;
 159
 160 /* Device used to access other hotkeys on the laptop */
 161 struct fujitsu_hotkey_t {
 162         acpi_handle acpi_handle;
 163         struct acpi_device *dev;
 164         struct input_dev *input;
 165         char phys[32];
 166         struct platform_device *pf_device;
 167         struct kfifo *fifo;
 168         spinlock_t fifo_lock;
 169         int rfkill_supported;
 170         int rfkill_state;
 171         int logolamp_registered;
 172         int kblamps_registered;
 173 };
 174
 175 static struct fujitsu_hotkey_t *fujitsu_hotkey;
 176
 177 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event);
 178
 179 #ifdef CONFIG_LEDS_CLASS
 180 static enum led_brightness logolamp_get(struct led_classdev *cdev);
 181 static void logolamp_set(struct led_classdev *cdev,
 182                                enum led_brightness brightness);
 183
 184 struct led_classdev logolamp_led = {
 185  .name = "fujitsu::logolamp",
 186  .brightness_get = logolamp_get,
 187  .brightness_set = logolamp_set
 188 };
 189
 190 static enum led_brightness kblamps_get(struct led_classdev *cdev);
 191 static void kblamps_set(struct led_classdev *cdev,
 192                                enum led_brightness brightness);
 193
 194 struct led_classdev kblamps_led = {
 195  .name = "fujitsu::kblamps",
 196  .brightness_get = kblamps_get,
 197  .brightness_set = kblamps_set
 198 };
 199 #endif
 200
 201 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
 202 static u32 dbg_level = 0x03;
 203 #endif
 204
 205 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event);
 206
 207 /* Fujitsu ACPI interface function */
 208
 209 static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
 210 {
 211         acpi_status status = AE_OK;
 212         union acpi_object params[4] = {
 213         { .type = ACPI_TYPE_INTEGER },
 214         { .type = ACPI_TYPE_INTEGER },
 215         { .type = ACPI_TYPE_INTEGER },
 216         { .type = ACPI_TYPE_INTEGER }
 217         };
 218         struct acpi_object_list arg_list = { 4, &params[0] };
 219         struct acpi_buffer output;
 220         union acpi_object out_obj;
 221         acpi_handle handle = NULL;
 222
 223         status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle);
 224         if (ACPI_FAILURE(status)) {
 225                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 226                                 "FUNC interface is not present\n");
 227                 return -ENODEV;
 228         }
 229
 230         params[0].integer.value = cmd;
 231         params[1].integer.value = arg0;
 232         params[2].integer.value = arg1;
 233         params[3].integer.value = arg2;
 234
 235         output.length = sizeof(out_obj);
 236         output.pointer = &out_obj;
 237
 238         status = acpi_evaluate_object(handle, NULL, &arg_list, &output);
 239         if (ACPI_FAILURE(status)) {
 240                 vdbg_printk(FUJLAPTOP_DBG_WARN,
 241                         "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
 242                                 cmd, arg0, arg1, arg2);
 243                 return -ENODEV;
 244         }
 245
 246         if (out_obj.type != ACPI_TYPE_INTEGER) {
 247                 vdbg_printk(FUJLAPTOP_DBG_WARN,
 248                         "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) did not "
 249                         "return an integer\n",
 250                         cmd, arg0, arg1, arg2);
 251                 return -ENODEV;
 252         }
 253
 254         vdbg_printk(FUJLAPTOP_DBG_TRACE,
 255                 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
 256                         cmd, arg0, arg1, arg2, (int)out_obj.integer.value);
 257         return out_obj.integer.value;
 258 }
 259
 260 #ifdef CONFIG_LEDS_CLASS
 261 /* LED class callbacks */
 262
 263 static void logolamp_set(struct led_classdev *cdev,
 264                                enum led_brightness brightness)
 265 {
 266         if (brightness >= LED_FULL) {
 267                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
 268                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON);
 269         } else if (brightness >= LED_HALF) {
 270                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
 271                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF);
 272         } else {
 273                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF);
 274         }
 275 }
 276
 277 static void kblamps_set(struct led_classdev *cdev,
 278                                enum led_brightness brightness)
 279 {
 280         if (brightness >= LED_FULL)
 281                 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
 282         else
 283                 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
 284 }
 285
 286 static enum led_brightness logolamp_get(struct led_classdev *cdev)
 287 {
 288         enum led_brightness brightness = LED_OFF;
 289         int poweron, always;
 290
 291         poweron = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0);
 292         if (poweron == FUNC_LED_ON) {
 293                 brightness = LED_HALF;
 294                 always = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0);
 295                 if (always == FUNC_LED_ON)
 296                         brightness = LED_FULL;
 297         }
 298         return brightness;
 299 }
 300
 301 static enum led_brightness kblamps_get(struct led_classdev *cdev)
 302 {
 303         enum led_brightness brightness = LED_OFF;
 304
 305         if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON)
 306                 brightness = LED_FULL;
 307
 308         return brightness;
 309 }
 310 #endif
 311
 312 /* Hardware access for LCD brightness control */
 313
 314 static int set_lcd_level(int level)
 315 {
 316         acpi_status status = AE_OK;
 317         union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 318         struct acpi_object_list arg_list = { 1, &arg0 };
 319         acpi_handle handle = NULL;
 320
 321         vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n",
 322                     level);
 323
 324         if (level < 0 || level >= fujitsu->max_brightness)
 325                 return -EINVAL;
 326
 327         if (!fujitsu)
 328                 return -EINVAL;
 329
 330         status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle);
 331         if (ACPI_FAILURE(status)) {
 332                 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n");
 333                 return -ENODEV;
 334         }
 335
 336         arg0.integer.value = level;
 337
 338         status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
 339         if (ACPI_FAILURE(status))
 340                 return -ENODEV;
 341
 342         return 0;
 343 }
 344
 345 static int set_lcd_level_alt(int level)
 346 {
 347         acpi_status status = AE_OK;
 348         union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 349         struct acpi_object_list arg_list = { 1, &arg0 };
 350         acpi_handle handle = NULL;
 351
 352         vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n",
 353                     level);
 354
 355         if (level < 0 || level >= fujitsu->max_brightness)
 356                 return -EINVAL;
 357
 358         if (!fujitsu)
 359                 return -EINVAL;
 360
 361         status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle);
 362         if (ACPI_FAILURE(status)) {
 363                 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n");
 364                 return -ENODEV;
 365         }
 366
 367         arg0.integer.value = level;
 368
 369         status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
 370         if (ACPI_FAILURE(status))
 371                 return -ENODEV;
 372
 373         return 0;
 374 }
 375
 376 static int get_lcd_level(void)
 377 {
 378         unsigned long long state = 0;
 379         acpi_status status = AE_OK;
 380
 381         vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n");
 382
 383         status =
 384             acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
 385         if (status < 0)
 386                 return status;
 387
 388         fujitsu->brightness_level = state & 0x0fffffff;
 389
 390         if (state & 0x80000000)
 391                 fujitsu->brightness_changed = 1;
 392         else
 393                 fujitsu->brightness_changed = 0;
 394
 395         return fujitsu->brightness_level;
 396 }
 397
 398 static int get_max_brightness(void)
 399 {
 400         unsigned long long state = 0;
 401         acpi_status status = AE_OK;
 402
 403         vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n");
 404
 405         status =
 406             acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state);
 407         if (status < 0)
 408                 return status;
 409
 410         fujitsu->max_brightness = state;
 411
 412         return fujitsu->max_brightness;
 413 }
 414
 415 /* Backlight device stuff */
 416
 417 static int bl_get_brightness(struct backlight_device *b)
 418 {
 419         return get_lcd_level();
 420 }
 421
 422 static int bl_update_status(struct backlight_device *b)
 423 {
 424         int ret;
 425         if (b->props.power == 4)
 426                 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
 427         else
 428                 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
 429         if (ret != 0)
 430                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 431                         "Unable to adjust backlight power, error code %i\n",
 432                         ret);
 433
 434         if (use_alt_lcd_levels)
 435                 ret = set_lcd_level_alt(b->props.brightness);
 436         else
 437                 ret = set_lcd_level(b->props.brightness);
 438         if (ret != 0)
 439                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 440                         "Unable to adjust LCD brightness, error code %i\n",
 441                         ret);
 442         return ret;
 443 }
 444
 445 static struct backlight_ops fujitsubl_ops = {
 446         .get_brightness = bl_get_brightness,
 447         .update_status = bl_update_status,
 448 };
 449
 450 /* Platform LCD brightness device */
 451
 452 static ssize_t
 453 show_max_brightness(struct device *dev,
 454                     struct device_attribute *attr, char *buf)
 455 {
 456
 457         int ret;
 458
 459         ret = get_max_brightness();
 460         if (ret < 0)
 461                 return ret;
 462
 463         return sprintf(buf, "%i\n", ret);
 464 }
 465
 466 static ssize_t
 467 show_brightness_changed(struct device *dev,
 468                         struct device_attribute *attr, char *buf)
 469 {
 470
 471         int ret;
 472
 473         ret = fujitsu->brightness_changed;
 474         if (ret < 0)
 475                 return ret;
 476
 477         return sprintf(buf, "%i\n", ret);
 478 }
 479
 480 static ssize_t show_lcd_level(struct device *dev,
 481                               struct device_attribute *attr, char *buf)
 482 {
 483
 484         int ret;
 485
 486         ret = get_lcd_level();
 487         if (ret < 0)
 488                 return ret;
 489
 490         return sprintf(buf, "%i\n", ret);
 491 }
 492
 493 static ssize_t store_lcd_level(struct device *dev,
 494                                struct device_attribute *attr, const char *buf,
 495                                size_t count)
 496 {
 497
 498         int level, ret;
 499
 500         if (sscanf(buf, "%i", &level) != 1
 501             || (level < 0 || level >= fujitsu->max_brightness))
 502                 return -EINVAL;
 503
 504         if (use_alt_lcd_levels)
 505                 ret = set_lcd_level_alt(level);
 506         else
 507                 ret = set_lcd_level(level);
 508         if (ret < 0)
 509                 return ret;
 510
 511         ret = get_lcd_level();
 512         if (ret < 0)
 513                 return ret;
 514
 515         return count;
 516 }
 517
 518 static ssize_t
 519 ignore_store(struct device *dev,
 520              struct device_attribute *attr, const char *buf, size_t count)
 521 {
 522         return count;
 523 }
 524
 525 static ssize_t
 526 show_lid_state(struct device *dev,
 527                         struct device_attribute *attr, char *buf)
 528 {
 529         if (!(fujitsu_hotkey->rfkill_supported & 0x100))
 530                 return sprintf(buf, "unknown\n");
 531         if (fujitsu_hotkey->rfkill_state & 0x100)
 532                 return sprintf(buf, "open\n");
 533         else
 534                 return sprintf(buf, "closed\n");
 535 }
 536
 537 static ssize_t
 538 show_dock_state(struct device *dev,
 539                         struct device_attribute *attr, char *buf)
 540 {
 541         if (!(fujitsu_hotkey->rfkill_supported & 0x200))
 542                 return sprintf(buf, "unknown\n");
 543         if (fujitsu_hotkey->rfkill_state & 0x200)
 544                 return sprintf(buf, "docked\n");
 545         else
 546                 return sprintf(buf, "undocked\n");
 547 }
 548
 549 static ssize_t
 550 show_radios_state(struct device *dev,
 551                         struct device_attribute *attr, char *buf)
 552 {
 553         if (!(fujitsu_hotkey->rfkill_supported & 0x20))
 554                 return sprintf(buf, "unknown\n");
 555         if (fujitsu_hotkey->rfkill_state & 0x20)
 556                 return sprintf(buf, "on\n");
 557         else
 558                 return sprintf(buf, "killed\n");
 559 }
 560
 561 static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store);
 562 static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed,
 563                    ignore_store);
 564 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 565 static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store);
 566 static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store);
 567 static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store);
 568
 569 static struct attribute *fujitsupf_attributes[] = {
 570         &dev_attr_brightness_changed.attr,
 571         &dev_attr_max_brightness.attr,
 572         &dev_attr_lcd_level.attr,
 573         &dev_attr_lid.attr,
 574         &dev_attr_dock.attr,
 575         &dev_attr_radios.attr,
 576         NULL
 577 };
 578
 579 static struct attribute_group fujitsupf_attribute_group = {
 580         .attrs = fujitsupf_attributes
 581 };
 582
 583 static struct platform_driver fujitsupf_driver = {
 584         .driver = {
 585                    .name = "fujitsu-laptop",
 586                    .owner = THIS_MODULE,
 587                    }
 588 };
 589
 590 static void dmi_check_cb_common(const struct dmi_system_id *id)
 591 {
 592         acpi_handle handle;
 593         printk(KERN_INFO "fujitsu-laptop: Identified laptop model '%s'.\n",
 594                id->ident);
 595         if (use_alt_lcd_levels == -1) {
 596                 if (ACPI_SUCCESS(acpi_get_handle(NULL,
 597                                 "\\_SB.PCI0.LPCB.FJEX.SBL2", &handle)))
 598                         use_alt_lcd_levels = 1;
 599                 else
 600                         use_alt_lcd_levels = 0;
 601                 vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as "
 602                         "%i\n", use_alt_lcd_levels);
 603         }
 604 }
 605
 606 static int dmi_check_cb_s6410(const struct dmi_system_id *id)
 607 {
 608         dmi_check_cb_common(id);
 609         fujitsu->keycode1 = KEY_SCREENLOCK;     /* "Lock" */
 610         fujitsu->keycode2 = KEY_HELP;   /* "Mobility Center" */
 611         return 0;
 612 }
 613
 614 static int dmi_check_cb_s6420(const struct dmi_system_id *id)
 615 {
 616         dmi_check_cb_common(id);
 617         fujitsu->keycode1 = KEY_SCREENLOCK;     /* "Lock" */
 618         fujitsu->keycode2 = KEY_HELP;   /* "Mobility Center" */
 619         return 0;
 620 }
 621
 622 static int dmi_check_cb_p8010(const struct dmi_system_id *id)
 623 {
 624         dmi_check_cb_common(id);
 625         fujitsu->keycode1 = KEY_HELP;   /* "Support" */
 626         fujitsu->keycode3 = KEY_SWITCHVIDEOMODE;        /* "Presentation" */
 627         fujitsu->keycode4 = KEY_WWW;    /* "Internet" */
 628         return 0;
 629 }
 630
 631 static struct dmi_system_id fujitsu_dmi_table[] = {
 632         {
 633          .ident = "Fujitsu Siemens S6410",
 634          .matches = {
 635                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 636                      DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"),
 637                      },
 638          .callback = dmi_check_cb_s6410},
 639         {
 640          .ident = "Fujitsu Siemens S6420",
 641          .matches = {
 642                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 643                      DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"),
 644                      },
 645          .callback = dmi_check_cb_s6420},
 646         {
 647          .ident = "Fujitsu LifeBook P8010",
 648          .matches = {
 649                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 650                      DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"),
 651                      },
 652          .callback = dmi_check_cb_p8010},
 653         {}
 654 };
 655
 656 /* ACPI device for LCD brightness control */
 657
 658 static int acpi_fujitsu_add(struct acpi_device *device)
 659 {
 660         acpi_handle handle;
 661         int result = 0;
 662         int state = 0;
 663         struct input_dev *input;
 664         int error;
 665
 666         if (!device)
 667                 return -EINVAL;
 668
 669         fujitsu->acpi_handle = device->handle;
 670         sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME);
 671         sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
 672         device->driver_data = fujitsu;
 673
 674         fujitsu->input = input = input_allocate_device();
 675         if (!input) {
 676                 error = -ENOMEM;
 677                 goto err_stop;
 678         }
 679
 680         snprintf(fujitsu->phys, sizeof(fujitsu->phys),
 681                  "%s/video/input0", acpi_device_hid(device));
 682
 683         input->name = acpi_device_name(device);
 684         input->phys = fujitsu->phys;
 685         input->id.bustype = BUS_HOST;
 686         input->id.product = 0x06;
 687         input->dev.parent = &device->dev;
 688         input->evbit[0] = BIT(EV_KEY);
 689         set_bit(KEY_BRIGHTNESSUP, input->keybit);
 690         set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
 691         set_bit(KEY_UNKNOWN, input->keybit);
 692
 693         error = input_register_device(input);
 694         if (error)
 695                 goto err_free_input_dev;
 696
 697         result = acpi_bus_get_power(fujitsu->acpi_handle, &state);
 698         if (result) {
 699                 printk(KERN_ERR "Error reading power state\n");
 700                 goto end;
 701         }
 702
 703         printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
 704                acpi_device_name(device), acpi_device_bid(device),
 705                !device->power.state ? "on" : "off");
 706
 707         fujitsu->dev = device;
 708
 709         if (ACPI_SUCCESS
 710             (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
 711                 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
 712                 if (ACPI_FAILURE
 713                     (acpi_evaluate_object
 714                      (device->handle, METHOD_NAME__INI, NULL, NULL)))
 715                         printk(KERN_ERR "_INI Method failed\n");
 716         }
 717
 718         /* do config (detect defaults) */
 719         use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
 720         disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
 721         vdbg_printk(FUJLAPTOP_DBG_INFO,
 722                     "config: [alt interface: %d], [adjust disable: %d]\n",
 723                     use_alt_lcd_levels, disable_brightness_adjust);
 724
 725         if (get_max_brightness() <= 0)
 726                 fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS;
 727         get_lcd_level();
 728
 729         return result;
 730
 731 end:
 732 err_free_input_dev:
 733         input_free_device(input);
 734 err_stop:
 735
 736         return result;
 737 }
 738
 739 static int acpi_fujitsu_remove(struct acpi_device *device, int type)
 740 {
 741         struct fujitsu_t *fujitsu = NULL;
 742
 743         if (!device || !acpi_driver_data(device))
 744                 return -EINVAL;
 745
 746         fujitsu = acpi_driver_data(device);
 747
 748         if (!device || !acpi_driver_data(device))
 749                 return -EINVAL;
 750
 751         fujitsu->acpi_handle = NULL;
 752
 753         return 0;
 754 }
 755
 756 /* Brightness notify */
 757
 758 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
 759 {
 760         struct input_dev *input;
 761         int keycode;
 762         int oldb, newb;
 763
 764         input = fujitsu->input;
 765
 766         switch (event) {
 767         case ACPI_FUJITSU_NOTIFY_CODE1:
 768                 keycode = 0;
 769                 oldb = fujitsu->brightness_level;
 770                 get_lcd_level();
 771                 newb = fujitsu->brightness_level;
 772
 773                 vdbg_printk(FUJLAPTOP_DBG_TRACE,
 774                             "brightness button event [%i -> %i (%i)]\n",
 775                             oldb, newb, fujitsu->brightness_changed);
 776
 777                 if (oldb < newb) {
 778                         if (disable_brightness_adjust != 1) {
 779                                 if (use_alt_lcd_levels)
 780                                         set_lcd_level_alt(newb);
 781                                 else
 782                                         set_lcd_level(newb);
 783                         }
 784                         acpi_bus_generate_proc_event(fujitsu->dev,
 785                                 ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0);
 786                         keycode = KEY_BRIGHTNESSUP;
 787                 } else if (oldb > newb) {
 788                         if (disable_brightness_adjust != 1) {
 789                                 if (use_alt_lcd_levels)
 790                                         set_lcd_level_alt(newb);
 791                                 else
 792                                         set_lcd_level(newb);
 793                         }
 794                         acpi_bus_generate_proc_event(fujitsu->dev,
 795                                 ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0);
 796                         keycode = KEY_BRIGHTNESSDOWN;
 797                 }
 798                 break;
 799         default:
 800                 keycode = KEY_UNKNOWN;
 801                 vdbg_printk(FUJLAPTOP_DBG_WARN,
 802                             "unsupported event [0x%x]\n", event);
 803                 break;
 804         }
 805
 806         if (keycode != 0) {
 807                 input_report_key(input, keycode, 1);
 808                 input_sync(input);
 809                 input_report_key(input, keycode, 0);
 810                 input_sync(input);
 811         }
 812 }
 813
 814 /* ACPI device for hotkey handling */
 815
 816 static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
 817 {
 818         acpi_handle handle;
 819         int result = 0;
 820         int state = 0;
 821         struct input_dev *input;
 822         int error;
 823         int i;
 824
 825         if (!device)
 826                 return -EINVAL;
 827
 828         fujitsu_hotkey->acpi_handle = device->handle;
 829         sprintf(acpi_device_name(device), "%s",
 830                 ACPI_FUJITSU_HOTKEY_DEVICE_NAME);
 831         sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
 832         device->driver_data = fujitsu_hotkey;
 833
 834         /* kfifo */
 835         spin_lock_init(&fujitsu_hotkey->fifo_lock);
 836         fujitsu_hotkey->fifo =
 837             kfifo_alloc(RINGBUFFERSIZE * sizeof(int), GFP_KERNEL,
 838                         &fujitsu_hotkey->fifo_lock);
 839         if (IS_ERR(fujitsu_hotkey->fifo)) {
 840                 printk(KERN_ERR "kfifo_alloc failed\n");
 841                 error = PTR_ERR(fujitsu_hotkey->fifo);
 842                 goto err_stop;
 843         }
 844
 845         fujitsu_hotkey->input = input = input_allocate_device();
 846         if (!input) {
 847                 error = -ENOMEM;
 848                 goto err_free_fifo;
 849         }
 850
 851         snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys),
 852                  "%s/video/input0", acpi_device_hid(device));
 853
 854         input->name = acpi_device_name(device);
 855         input->phys = fujitsu_hotkey->phys;
 856         input->id.bustype = BUS_HOST;
 857         input->id.product = 0x06;
 858         input->dev.parent = &device->dev;
 859
 860         set_bit(EV_KEY, input->evbit);
 861         set_bit(fujitsu->keycode1, input->keybit);
 862         set_bit(fujitsu->keycode2, input->keybit);
 863         set_bit(fujitsu->keycode3, input->keybit);
 864         set_bit(fujitsu->keycode4, input->keybit);
 865         set_bit(KEY_UNKNOWN, input->keybit);
 866
 867         error = input_register_device(input);
 868         if (error)
 869                 goto err_free_input_dev;
 870
 871         result = acpi_bus_get_power(fujitsu_hotkey->acpi_handle, &state);
 872         if (result) {
 873                 printk(KERN_ERR "Error reading power state\n");
 874                 goto end;
 875         }
 876
 877         printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
 878                acpi_device_name(device), acpi_device_bid(device),
 879                !device->power.state ? "on" : "off");
 880
 881         fujitsu_hotkey->dev = device;
 882
 883         if (ACPI_SUCCESS
 884             (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
 885                 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
 886                 if (ACPI_FAILURE
 887                     (acpi_evaluate_object
 888                      (device->handle, METHOD_NAME__INI, NULL, NULL)))
 889                         printk(KERN_ERR "_INI Method failed\n");
 890         }
 891
 892         i = 0;
 893         while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0
 894                 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE)
 895                 ; /* No action, result is discarded */
 896         vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i);
 897
 898         fujitsu_hotkey->rfkill_supported =
 899                 call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0);
 900
 901         /* Make sure our bitmask of supported functions is cleared if the
 902            RFKILL function block is not implemented, like on the S7020. */
 903         if (fujitsu_hotkey->rfkill_supported == UNSUPPORTED_CMD)
 904                 fujitsu_hotkey->rfkill_supported = 0;
 905
 906         if (fujitsu_hotkey->rfkill_supported)
 907                 fujitsu_hotkey->rfkill_state =
 908                         call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
 909
 910         /* Suspect this is a keymap of the application panel, print it */
 911         printk(KERN_INFO "fujitsu-laptop: BTNI: [0x%x]\n",
 912                 call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
 913
 914         #ifdef CONFIG_LEDS_CLASS
 915         if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
 916                 result = led_classdev_register(&fujitsu->pf_device->dev,
 917                                                 &logolamp_led);
 918                 if (result == 0) {
 919                         fujitsu_hotkey->logolamp_registered = 1;
 920                 } else {
 921                         printk(KERN_ERR "fujitsu-laptop: Could not register "
 922                         "LED handler for logo lamp, error %i\n", result);
 923                 }
 924         }
 925
 926         if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
 927            (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
 928                 result = led_classdev_register(&fujitsu->pf_device->dev,
 929                                                 &kblamps_led);
 930                 if (result == 0) {
 931                         fujitsu_hotkey->kblamps_registered = 1;
 932                 } else {
 933                         printk(KERN_ERR "fujitsu-laptop: Could not register "
 934                         "LED handler for keyboard lamps, error %i\n", result);
 935                 }
 936         }
 937         #endif
 938
 939         return result;
 940
 941 end:
 942 err_free_input_dev:
 943         input_free_device(input);
 944 err_free_fifo:
 945         kfifo_free(fujitsu_hotkey->fifo);
 946 err_stop:
 947
 948         return result;
 949 }
 950
 951 static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type)
 952 {
 953         struct fujitsu_hotkey_t *fujitsu_hotkey = NULL;
 954
 955         if (!device || !acpi_driver_data(device))
 956                 return -EINVAL;
 957
 958         fujitsu_hotkey = acpi_driver_data(device);
 959
 960         fujitsu_hotkey->acpi_handle = NULL;
 961
 962         kfifo_free(fujitsu_hotkey->fifo);
 963
 964         return 0;
 965 }
 966
 967 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event)
 968 {
 969         struct input_dev *input;
 970         int keycode, keycode_r;
 971         unsigned int irb = 1;
 972         int i, status;
 973
 974         input = fujitsu_hotkey->input;
 975
 976         if (fujitsu_hotkey->rfkill_supported)
 977                 fujitsu_hotkey->rfkill_state =
 978                         call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
 979
 980         switch (event) {
 981         case ACPI_FUJITSU_NOTIFY_CODE1:
 982                 i = 0;
 983                 while ((irb =
 984                         call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0
 985                                 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
 986                         switch (irb & 0x4ff) {
 987                         case KEY1_CODE:
 988                                 keycode = fujitsu->keycode1;
 989                                 break;
 990                         case KEY2_CODE:
 991                                 keycode = fujitsu->keycode2;
 992                                 break;
 993                         case KEY3_CODE:
 994                                 keycode = fujitsu->keycode3;
 995                                 break;
 996                         case KEY4_CODE:
 997                                 keycode = fujitsu->keycode4;
 998                                 break;
 999                         case 0:
1000                                 keycode = 0;
1001                                 break;
1002                         default:
1003                                 vdbg_printk(FUJLAPTOP_DBG_WARN,
1004                                             "Unknown GIRB result [%x]\n", irb);
1005                                 keycode = -1;
1006                                 break;
1007                         }
1008                         if (keycode > 0) {
1009                                 vdbg_printk(FUJLAPTOP_DBG_TRACE,
1010                                         "Push keycode into ringbuffer [%d]\n",
1011                                         keycode);
1012                                 status = kfifo_put(fujitsu_hotkey->fifo,
1013                                                    (unsigned char *)&keycode,
1014                                                    sizeof(keycode));
1015                                 if (status != sizeof(keycode)) {
1016                                         vdbg_printk(FUJLAPTOP_DBG_WARN,
1017                                             "Could not push keycode [0x%x]\n",
1018                                             keycode);
1019                                 } else {
1020                                         input_report_key(input, keycode, 1);
1021                                         input_sync(input);
1022                                 }
1023                         } else if (keycode == 0) {
1024                                 while ((status =
1025                                         kfifo_get
1026                                         (fujitsu_hotkey->fifo, (unsigned char *)
1027                                          &keycode_r,
1028                                          sizeof
1029                                          (keycode_r))) == sizeof(keycode_r)) {
1030                                         input_report_key(input, keycode_r, 0);
1031                                         input_sync(input);
1032                                         vdbg_printk(FUJLAPTOP_DBG_TRACE,
1033                                           "Pop keycode from ringbuffer [%d]\n",
1034                                           keycode_r);
1035                                 }
1036                         }
1037                 }
1038
1039                 break;
1040         default:
1041                 keycode = KEY_UNKNOWN;
1042                 vdbg_printk(FUJLAPTOP_DBG_WARN,
1043                             "Unsupported event [0x%x]\n", event);
1044                 input_report_key(input, keycode, 1);
1045                 input_sync(input);
1046                 input_report_key(input, keycode, 0);
1047                 input_sync(input);
1048                 break;
1049         }
1050 }
1051
1052 /* Initialization */
1053
1054 static const struct acpi_device_id fujitsu_device_ids[] = {
1055         {ACPI_FUJITSU_HID, 0},
1056         {"", 0},
1057 };
1058
1059 static struct acpi_driver acpi_fujitsu_driver = {
1060         .name = ACPI_FUJITSU_DRIVER_NAME,
1061         .class = ACPI_FUJITSU_CLASS,
1062         .ids = fujitsu_device_ids,
1063         .ops = {
1064                 .add = acpi_fujitsu_add,
1065                 .remove = acpi_fujitsu_remove,
1066                 .notify = acpi_fujitsu_notify,
1067                 },
1068 };
1069
1070 static const struct acpi_device_id fujitsu_hotkey_device_ids[] = {
1071         {ACPI_FUJITSU_HOTKEY_HID, 0},
1072         {"", 0},
1073 };
1074
1075 static struct acpi_driver acpi_fujitsu_hotkey_driver = {
1076         .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME,
1077         .class = ACPI_FUJITSU_CLASS,
1078         .ids = fujitsu_hotkey_device_ids,
1079         .ops = {
1080                 .add = acpi_fujitsu_hotkey_add,
1081                 .remove = acpi_fujitsu_hotkey_remove,
1082                 .notify = acpi_fujitsu_hotkey_notify,
1083                 },
1084 };
1085
1086 static int __init fujitsu_init(void)
1087 {
1088         int ret, result, max_brightness;
1089
1090         if (acpi_disabled)
1091                 return -ENODEV;
1092
1093         fujitsu = kmalloc(sizeof(struct fujitsu_t), GFP_KERNEL);
1094         if (!fujitsu)
1095                 return -ENOMEM;
1096         memset(fujitsu, 0, sizeof(struct fujitsu_t));
1097         fujitsu->keycode1 = KEY_PROG1;
1098         fujitsu->keycode2 = KEY_PROG2;
1099         fujitsu->keycode3 = KEY_PROG3;
1100         fujitsu->keycode4 = KEY_PROG4;
1101         dmi_check_system(fujitsu_dmi_table);
1102
1103         result = acpi_bus_register_driver(&acpi_fujitsu_driver);
1104         if (result < 0) {
1105                 ret = -ENODEV;
1106                 goto fail_acpi;
1107         }
1108
1109         /* Register platform stuff */
1110
1111         fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1);
1112         if (!fujitsu->pf_device) {
1113                 ret = -ENOMEM;
1114                 goto fail_platform_driver;
1115         }
1116
1117         ret = platform_device_add(fujitsu->pf_device);
1118         if (ret)
1119                 goto fail_platform_device1;
1120
1121         ret =
1122             sysfs_create_group(&fujitsu->pf_device->dev.kobj,
1123                                &fujitsupf_attribute_group);
1124         if (ret)
1125                 goto fail_platform_device2;
1126
1127         /* Register backlight stuff */
1128
1129         if (!acpi_video_backlight_support()) {
1130                 fujitsu->bl_device =
1131                         backlight_device_register("fujitsu-laptop", NULL, NULL,
1132                                                   &fujitsubl_ops);
1133                 if (IS_ERR(fujitsu->bl_device))
1134                         return PTR_ERR(fujitsu->bl_device);
1135                 max_brightness = fujitsu->max_brightness;
1136                 fujitsu->bl_device->props.max_brightness = max_brightness - 1;
1137                 fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
1138         }
1139
1140         ret = platform_driver_register(&fujitsupf_driver);
1141         if (ret)
1142                 goto fail_backlight;
1143
1144         /* Register hotkey driver */
1145
1146         fujitsu_hotkey = kmalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL);
1147         if (!fujitsu_hotkey) {
1148                 ret = -ENOMEM;
1149                 goto fail_hotkey;
1150         }
1151         memset(fujitsu_hotkey, 0, sizeof(struct fujitsu_hotkey_t));
1152
1153         result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver);
1154         if (result < 0) {
1155                 ret = -ENODEV;
1156                 goto fail_hotkey1;
1157         }
1158
1159         /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */
1160
1161         if (!acpi_video_backlight_support()) {
1162                 if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3)
1163                         fujitsu->bl_device->props.power = 4;
1164                 else
1165                         fujitsu->bl_device->props.power = 0;
1166         }
1167
1168         printk(KERN_INFO "fujitsu-laptop: driver " FUJITSU_DRIVER_VERSION
1169                " successfully loaded.\n");
1170
1171         return 0;
1172
1173 fail_hotkey1:
1174
1175         kfree(fujitsu_hotkey);
1176
1177 fail_hotkey:
1178
1179         platform_driver_unregister(&fujitsupf_driver);
1180
1181 fail_backlight:
1182
1183         if (fujitsu->bl_device)
1184                 backlight_device_unregister(fujitsu->bl_device);
1185
1186 fail_platform_device2:
1187
1188         platform_device_del(fujitsu->pf_device);
1189
1190 fail_platform_device1:
1191
1192         platform_device_put(fujitsu->pf_device);
1193
1194 fail_platform_driver:
1195
1196         acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1197
1198 fail_acpi:
1199
1200         kfree(fujitsu);
1201
1202         return ret;
1203 }
1204
1205 static void __exit fujitsu_cleanup(void)
1206 {
1207         #ifdef CONFIG_LEDS_CLASS
1208         if (fujitsu_hotkey->logolamp_registered != 0)
1209                 led_classdev_unregister(&logolamp_led);
1210
1211         if (fujitsu_hotkey->kblamps_registered != 0)
1212                 led_classdev_unregister(&kblamps_led);
1213         #endif
1214
1215         sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1216                            &fujitsupf_attribute_group);
1217         platform_device_unregister(fujitsu->pf_device);
1218         platform_driver_unregister(&fujitsupf_driver);
1219         if (fujitsu->bl_device)
1220                 backlight_device_unregister(fujitsu->bl_device);
1221
1222         acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1223
1224         kfree(fujitsu);
1225
1226         acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver);
1227
1228         kfree(fujitsu_hotkey);
1229
1230         printk(KERN_INFO "fujitsu-laptop: driver unloaded.\n");
1231 }
1232
1233 module_init(fujitsu_init);
1234 module_exit(fujitsu_cleanup);
1235
1236 module_param(use_alt_lcd_levels, uint, 0644);
1237 MODULE_PARM_DESC(use_alt_lcd_levels,
1238                  "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
1239 module_param(disable_brightness_adjust, uint, 0644);
1240 MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment .");
1241 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
1242 module_param_named(debug, dbg_level, uint, 0644);
1243 MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
1244 #endif
1245
1246 MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
1247 MODULE_DESCRIPTION("Fujitsu laptop extras support");
1248 MODULE_VERSION(FUJITSU_DRIVER_VERSION);
1249 MODULE_LICENSE("GPL");
1250
1251 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
1252 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
1253 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
1254
1255 static struct pnp_device_id pnp_ids[] = {
1256         {.id = "FUJ02bf"},
1257         {.id = "FUJ02B1"},
1258         {.id = "FUJ02E3"},
1259         {.id = ""}
1260 };
1261
1262 MODULE_DEVICE_TABLE(pnp, pnp_ids);