drivers/platform/x86/fujitsu-laptop.c

   1 /*-*-linux-c-*-*/
   2
   3 /*
   4   Copyright (C) 2007,2008 Jonathan Woithe <jwoithe@just42.net>
   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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  60
  61 #include <linux/module.h>
  62 #include <linux/kernel.h>
  63 #include <linux/init.h>
  64 #include <linux/acpi.h>
  65 #include <linux/dmi.h>
  66 #include <linux/backlight.h>
  67 #include <linux/input.h>
  68 #include <linux/kfifo.h>
  69 #include <linux/video_output.h>
  70 #include <linux/platform_device.h>
  71 #include <linux/slab.h>
  72 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
  73 #include <linux/leds.h>
  74 #endif
  75
  76 #define FUJITSU_DRIVER_VERSION "0.6.0"
  77
  78 #define FUJITSU_LCD_N_LEVELS 8
  79
  80 #define ACPI_FUJITSU_CLASS              "fujitsu"
  81 #define ACPI_FUJITSU_HID                "FUJ02B1"
  82 #define ACPI_FUJITSU_DRIVER_NAME        "Fujitsu laptop FUJ02B1 ACPI brightness driver"
  83 #define ACPI_FUJITSU_DEVICE_NAME        "Fujitsu FUJ02B1"
  84 #define ACPI_FUJITSU_HOTKEY_HID         "FUJ02E3"
  85 #define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver"
  86 #define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3"
  87
  88 #define ACPI_FUJITSU_NOTIFY_CODE1     0x80
  89
  90 #define ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS     0x86
  91 #define ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS     0x87
  92
  93 /* FUNC interface - command values */
  94 #define FUNC_RFKILL     0x1000
  95 #define FUNC_LEDS       0x1001
  96 #define FUNC_BUTTONS    0x1002
  97 #define FUNC_BACKLIGHT  0x1004
  98
  99 /* FUNC interface - responses */
 100 #define UNSUPPORTED_CMD 0x80000000
 101
 102 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 103 /* FUNC interface - LED control */
 104 #define FUNC_LED_OFF    0x1
 105 #define FUNC_LED_ON     0x30001
 106 #define KEYBOARD_LAMPS  0x100
 107 #define LOGOLAMP_POWERON 0x2000
 108 #define LOGOLAMP_ALWAYS  0x4000
 109 #endif
 110
 111 /* Hotkey details */
 112 #define KEY1_CODE       0x410   /* codes for the keys in the GIRB register */
 113 #define KEY2_CODE       0x411
 114 #define KEY3_CODE       0x412
 115 #define KEY4_CODE       0x413
 116
 117 #define MAX_HOTKEY_RINGBUFFER_SIZE 100
 118 #define RINGBUFFERSIZE 40
 119
 120 /* Debugging */
 121 #define FUJLAPTOP_LOG      ACPI_FUJITSU_HID ": "
 122 #define FUJLAPTOP_ERR      KERN_ERR FUJLAPTOP_LOG
 123 #define FUJLAPTOP_NOTICE   KERN_NOTICE FUJLAPTOP_LOG
 124 #define FUJLAPTOP_INFO     KERN_INFO FUJLAPTOP_LOG
 125 #define FUJLAPTOP_DEBUG    KERN_DEBUG FUJLAPTOP_LOG
 126
 127 #define FUJLAPTOP_DBG_ALL         0xffff
 128 #define FUJLAPTOP_DBG_ERROR       0x0001
 129 #define FUJLAPTOP_DBG_WARN        0x0002
 130 #define FUJLAPTOP_DBG_INFO        0x0004
 131 #define FUJLAPTOP_DBG_TRACE       0x0008
 132
 133 #define dbg_printk(a_dbg_level, format, arg...) \
 134         do { if (dbg_level & a_dbg_level) \
 135                 printk(FUJLAPTOP_DEBUG "%s: " format, __func__ , ## arg); \
 136         } while (0)
 137 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
 138 #define vdbg_printk(a_dbg_level, format, arg...) \
 139         dbg_printk(a_dbg_level, format, ## arg)
 140 #else
 141 #define vdbg_printk(a_dbg_level, format, arg...)
 142 #endif
 143
 144 /* Device controlling the backlight and associated keys */
 145 struct fujitsu_t {
 146         acpi_handle acpi_handle;
 147         struct acpi_device *dev;
 148         struct input_dev *input;
 149         char phys[32];
 150         struct backlight_device *bl_device;
 151         struct platform_device *pf_device;
 152         int keycode1, keycode2, keycode3, keycode4;
 153
 154         unsigned int max_brightness;
 155         unsigned int brightness_changed;
 156         unsigned int brightness_level;
 157 };
 158
 159 static struct fujitsu_t *fujitsu;
 160 static int use_alt_lcd_levels = -1;
 161 static int disable_brightness_adjust = -1;
 162
 163 /* Device used to access other hotkeys on the laptop */
 164 struct fujitsu_hotkey_t {
 165         acpi_handle acpi_handle;
 166         struct acpi_device *dev;
 167         struct input_dev *input;
 168         char phys[32];
 169         struct platform_device *pf_device;
 170         struct kfifo fifo;
 171         spinlock_t fifo_lock;
 172         int rfkill_supported;
 173         int rfkill_state;
 174         int logolamp_registered;
 175         int kblamps_registered;
 176 };
 177
 178 static struct fujitsu_hotkey_t *fujitsu_hotkey;
 179
 180 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event);
 181
 182 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 183 static enum led_brightness logolamp_get(struct led_classdev *cdev);
 184 static void logolamp_set(struct led_classdev *cdev,
 185                                enum led_brightness brightness);
 186
 187 static struct led_classdev logolamp_led = {
 188  .name = "fujitsu::logolamp",
 189  .brightness_get = logolamp_get,
 190  .brightness_set = logolamp_set
 191 };
 192
 193 static enum led_brightness kblamps_get(struct led_classdev *cdev);
 194 static void kblamps_set(struct led_classdev *cdev,
 195                                enum led_brightness brightness);
 196
 197 static struct led_classdev kblamps_led = {
 198  .name = "fujitsu::kblamps",
 199  .brightness_get = kblamps_get,
 200  .brightness_set = kblamps_set
 201 };
 202 #endif
 203
 204 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
 205 static u32 dbg_level = 0x03;
 206 #endif
 207
 208 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event);
 209
 210 /* Fujitsu ACPI interface function */
 211
 212 static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
 213 {
 214         acpi_status status = AE_OK;
 215         union acpi_object params[4] = {
 216         { .type = ACPI_TYPE_INTEGER },
 217         { .type = ACPI_TYPE_INTEGER },
 218         { .type = ACPI_TYPE_INTEGER },
 219         { .type = ACPI_TYPE_INTEGER }
 220         };
 221         struct acpi_object_list arg_list = { 4, &params[0] };
 222         struct acpi_buffer output;
 223         union acpi_object out_obj;
 224         acpi_handle handle = NULL;
 225
 226         status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle);
 227         if (ACPI_FAILURE(status)) {
 228                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 229                                 "FUNC interface is not present\n");
 230                 return -ENODEV;
 231         }
 232
 233         params[0].integer.value = cmd;
 234         params[1].integer.value = arg0;
 235         params[2].integer.value = arg1;
 236         params[3].integer.value = arg2;
 237
 238         output.length = sizeof(out_obj);
 239         output.pointer = &out_obj;
 240
 241         status = acpi_evaluate_object(handle, NULL, &arg_list, &output);
 242         if (ACPI_FAILURE(status)) {
 243                 vdbg_printk(FUJLAPTOP_DBG_WARN,
 244                         "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
 245                                 cmd, arg0, arg1, arg2);
 246                 return -ENODEV;
 247         }
 248
 249         if (out_obj.type != ACPI_TYPE_INTEGER) {
 250                 vdbg_printk(FUJLAPTOP_DBG_WARN,
 251                         "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) did not "
 252                         "return an integer\n",
 253                         cmd, arg0, arg1, arg2);
 254                 return -ENODEV;
 255         }
 256
 257         vdbg_printk(FUJLAPTOP_DBG_TRACE,
 258                 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
 259                         cmd, arg0, arg1, arg2, (int)out_obj.integer.value);
 260         return out_obj.integer.value;
 261 }
 262
 263 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 264 /* LED class callbacks */
 265
 266 static void logolamp_set(struct led_classdev *cdev,
 267                                enum led_brightness brightness)
 268 {
 269         if (brightness >= LED_FULL) {
 270                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
 271                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON);
 272         } else if (brightness >= LED_HALF) {
 273                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON);
 274                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF);
 275         } else {
 276                 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF);
 277         }
 278 }
 279
 280 static void kblamps_set(struct led_classdev *cdev,
 281                                enum led_brightness brightness)
 282 {
 283         if (brightness >= LED_FULL)
 284                 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON);
 285         else
 286                 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF);
 287 }
 288
 289 static enum led_brightness logolamp_get(struct led_classdev *cdev)
 290 {
 291         enum led_brightness brightness = LED_OFF;
 292         int poweron, always;
 293
 294         poweron = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0);
 295         if (poweron == FUNC_LED_ON) {
 296                 brightness = LED_HALF;
 297                 always = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0);
 298                 if (always == FUNC_LED_ON)
 299                         brightness = LED_FULL;
 300         }
 301         return brightness;
 302 }
 303
 304 static enum led_brightness kblamps_get(struct led_classdev *cdev)
 305 {
 306         enum led_brightness brightness = LED_OFF;
 307
 308         if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON)
 309                 brightness = LED_FULL;
 310
 311         return brightness;
 312 }
 313 #endif
 314
 315 /* Hardware access for LCD brightness control */
 316
 317 static int set_lcd_level(int level)
 318 {
 319         acpi_status status = AE_OK;
 320         union acpi_object arg0 = { ACPI_TYPE_INTEGER };
 321         struct acpi_object_list arg_list = { 1, &arg0 };
 322         acpi_handle handle = NULL;
 323
 324         vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n",
 325                     level);
 326
 327         if (level < 0 || level >= fujitsu->max_brightness)
 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         status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle);
 359         if (ACPI_FAILURE(status)) {
 360                 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n");
 361                 return -ENODEV;
 362         }
 363
 364         arg0.integer.value = level;
 365
 366         status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
 367         if (ACPI_FAILURE(status))
 368                 return -ENODEV;
 369
 370         return 0;
 371 }
 372
 373 static int get_lcd_level(void)
 374 {
 375         unsigned long long state = 0;
 376         acpi_status status = AE_OK;
 377
 378         vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n");
 379
 380         status =
 381             acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state);
 382         if (ACPI_FAILURE(status))
 383                 return 0;
 384
 385         fujitsu->brightness_level = state & 0x0fffffff;
 386
 387         if (state & 0x80000000)
 388                 fujitsu->brightness_changed = 1;
 389         else
 390                 fujitsu->brightness_changed = 0;
 391
 392         return fujitsu->brightness_level;
 393 }
 394
 395 static int get_max_brightness(void)
 396 {
 397         unsigned long long state = 0;
 398         acpi_status status = AE_OK;
 399
 400         vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n");
 401
 402         status =
 403             acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state);
 404         if (ACPI_FAILURE(status))
 405                 return -1;
 406
 407         fujitsu->max_brightness = state;
 408
 409         return fujitsu->max_brightness;
 410 }
 411
 412 /* Backlight device stuff */
 413
 414 static int bl_get_brightness(struct backlight_device *b)
 415 {
 416         return get_lcd_level();
 417 }
 418
 419 static int bl_update_status(struct backlight_device *b)
 420 {
 421         int ret;
 422         if (b->props.power == 4)
 423                 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3);
 424         else
 425                 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0);
 426         if (ret != 0)
 427                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 428                         "Unable to adjust backlight power, error code %i\n",
 429                         ret);
 430
 431         if (use_alt_lcd_levels)
 432                 ret = set_lcd_level_alt(b->props.brightness);
 433         else
 434                 ret = set_lcd_level(b->props.brightness);
 435         if (ret != 0)
 436                 vdbg_printk(FUJLAPTOP_DBG_ERROR,
 437                         "Unable to adjust LCD brightness, error code %i\n",
 438                         ret);
 439         return ret;
 440 }
 441
 442 static const struct backlight_ops fujitsubl_ops = {
 443         .get_brightness = bl_get_brightness,
 444         .update_status = bl_update_status,
 445 };
 446
 447 /* Platform LCD brightness device */
 448
 449 static ssize_t
 450 show_max_brightness(struct device *dev,
 451                     struct device_attribute *attr, char *buf)
 452 {
 453
 454         int ret;
 455
 456         ret = get_max_brightness();
 457         if (ret < 0)
 458                 return ret;
 459
 460         return sprintf(buf, "%i\n", ret);
 461 }
 462
 463 static ssize_t
 464 show_brightness_changed(struct device *dev,
 465                         struct device_attribute *attr, char *buf)
 466 {
 467
 468         int ret;
 469
 470         ret = fujitsu->brightness_changed;
 471         if (ret < 0)
 472                 return ret;
 473
 474         return sprintf(buf, "%i\n", ret);
 475 }
 476
 477 static ssize_t show_lcd_level(struct device *dev,
 478                               struct device_attribute *attr, char *buf)
 479 {
 480
 481         int ret;
 482
 483         ret = get_lcd_level();
 484         if (ret < 0)
 485                 return ret;
 486
 487         return sprintf(buf, "%i\n", ret);
 488 }
 489
 490 static ssize_t store_lcd_level(struct device *dev,
 491                                struct device_attribute *attr, const char *buf,
 492                                size_t count)
 493 {
 494
 495         int level, ret;
 496
 497         if (sscanf(buf, "%i", &level) != 1
 498             || (level < 0 || level >= fujitsu->max_brightness))
 499                 return -EINVAL;
 500
 501         if (use_alt_lcd_levels)
 502                 ret = set_lcd_level_alt(level);
 503         else
 504                 ret = set_lcd_level(level);
 505         if (ret < 0)
 506                 return ret;
 507
 508         ret = get_lcd_level();
 509         if (ret < 0)
 510                 return ret;
 511
 512         return count;
 513 }
 514
 515 static ssize_t
 516 ignore_store(struct device *dev,
 517              struct device_attribute *attr, const char *buf, size_t count)
 518 {
 519         return count;
 520 }
 521
 522 static ssize_t
 523 show_lid_state(struct device *dev,
 524                         struct device_attribute *attr, char *buf)
 525 {
 526         if (!(fujitsu_hotkey->rfkill_supported & 0x100))
 527                 return sprintf(buf, "unknown\n");
 528         if (fujitsu_hotkey->rfkill_state & 0x100)
 529                 return sprintf(buf, "open\n");
 530         else
 531                 return sprintf(buf, "closed\n");
 532 }
 533
 534 static ssize_t
 535 show_dock_state(struct device *dev,
 536                         struct device_attribute *attr, char *buf)
 537 {
 538         if (!(fujitsu_hotkey->rfkill_supported & 0x200))
 539                 return sprintf(buf, "unknown\n");
 540         if (fujitsu_hotkey->rfkill_state & 0x200)
 541                 return sprintf(buf, "docked\n");
 542         else
 543                 return sprintf(buf, "undocked\n");
 544 }
 545
 546 static ssize_t
 547 show_radios_state(struct device *dev,
 548                         struct device_attribute *attr, char *buf)
 549 {
 550         if (!(fujitsu_hotkey->rfkill_supported & 0x20))
 551                 return sprintf(buf, "unknown\n");
 552         if (fujitsu_hotkey->rfkill_state & 0x20)
 553                 return sprintf(buf, "on\n");
 554         else
 555                 return sprintf(buf, "killed\n");
 556 }
 557
 558 static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store);
 559 static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed,
 560                    ignore_store);
 561 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
 562 static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store);
 563 static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store);
 564 static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store);
 565
 566 static struct attribute *fujitsupf_attributes[] = {
 567         &dev_attr_brightness_changed.attr,
 568         &dev_attr_max_brightness.attr,
 569         &dev_attr_lcd_level.attr,
 570         &dev_attr_lid.attr,
 571         &dev_attr_dock.attr,
 572         &dev_attr_radios.attr,
 573         NULL
 574 };
 575
 576 static struct attribute_group fujitsupf_attribute_group = {
 577         .attrs = fujitsupf_attributes
 578 };
 579
 580 static struct platform_driver fujitsupf_driver = {
 581         .driver = {
 582                    .name = "fujitsu-laptop",
 583                    .owner = THIS_MODULE,
 584                    }
 585 };
 586
 587 static void dmi_check_cb_common(const struct dmi_system_id *id)
 588 {
 589         acpi_handle handle;
 590         pr_info("Identified laptop model '%s'\n", id->ident);
 591         if (use_alt_lcd_levels == -1) {
 592                 if (ACPI_SUCCESS(acpi_get_handle(NULL,
 593                                 "\\_SB.PCI0.LPCB.FJEX.SBL2", &handle)))
 594                         use_alt_lcd_levels = 1;
 595                 else
 596                         use_alt_lcd_levels = 0;
 597                 vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as "
 598                         "%i\n", use_alt_lcd_levels);
 599         }
 600 }
 601
 602 static int dmi_check_cb_s6410(const struct dmi_system_id *id)
 603 {
 604         dmi_check_cb_common(id);
 605         fujitsu->keycode1 = KEY_SCREENLOCK;     /* "Lock" */
 606         fujitsu->keycode2 = KEY_HELP;   /* "Mobility Center" */
 607         return 1;
 608 }
 609
 610 static int dmi_check_cb_s6420(const struct dmi_system_id *id)
 611 {
 612         dmi_check_cb_common(id);
 613         fujitsu->keycode1 = KEY_SCREENLOCK;     /* "Lock" */
 614         fujitsu->keycode2 = KEY_HELP;   /* "Mobility Center" */
 615         return 1;
 616 }
 617
 618 static int dmi_check_cb_p8010(const struct dmi_system_id *id)
 619 {
 620         dmi_check_cb_common(id);
 621         fujitsu->keycode1 = KEY_HELP;   /* "Support" */
 622         fujitsu->keycode3 = KEY_SWITCHVIDEOMODE;        /* "Presentation" */
 623         fujitsu->keycode4 = KEY_WWW;    /* "Internet" */
 624         return 1;
 625 }
 626
 627 static struct dmi_system_id fujitsu_dmi_table[] = {
 628         {
 629          .ident = "Fujitsu Siemens S6410",
 630          .matches = {
 631                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 632                      DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"),
 633                      },
 634          .callback = dmi_check_cb_s6410},
 635         {
 636          .ident = "Fujitsu Siemens S6420",
 637          .matches = {
 638                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
 639                      DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"),
 640                      },
 641          .callback = dmi_check_cb_s6420},
 642         {
 643          .ident = "Fujitsu LifeBook P8010",
 644          .matches = {
 645                      DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"),
 646                      DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"),
 647                      },
 648          .callback = dmi_check_cb_p8010},
 649         {}
 650 };
 651
 652 /* ACPI device for LCD brightness control */
 653
 654 static int acpi_fujitsu_add(struct acpi_device *device)
 655 {
 656         acpi_handle handle;
 657         int result = 0;
 658         int state = 0;
 659         struct input_dev *input;
 660         int error;
 661
 662         if (!device)
 663                 return -EINVAL;
 664
 665         fujitsu->acpi_handle = device->handle;
 666         sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME);
 667         sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
 668         device->driver_data = fujitsu;
 669
 670         fujitsu->input = input = input_allocate_device();
 671         if (!input) {
 672                 error = -ENOMEM;
 673                 goto err_stop;
 674         }
 675
 676         snprintf(fujitsu->phys, sizeof(fujitsu->phys),
 677                  "%s/video/input0", acpi_device_hid(device));
 678
 679         input->name = acpi_device_name(device);
 680         input->phys = fujitsu->phys;
 681         input->id.bustype = BUS_HOST;
 682         input->id.product = 0x06;
 683         input->dev.parent = &device->dev;
 684         input->evbit[0] = BIT(EV_KEY);
 685         set_bit(KEY_BRIGHTNESSUP, input->keybit);
 686         set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
 687         set_bit(KEY_UNKNOWN, input->keybit);
 688
 689         error = input_register_device(input);
 690         if (error)
 691                 goto err_free_input_dev;
 692
 693         result = acpi_bus_update_power(fujitsu->acpi_handle, &state);
 694         if (result) {
 695                 pr_err("Error reading power state\n");
 696                 goto err_unregister_input_dev;
 697         }
 698
 699         pr_info("ACPI: %s [%s] (%s)\n",
 700                acpi_device_name(device), acpi_device_bid(device),
 701                !device->power.state ? "on" : "off");
 702
 703         fujitsu->dev = device;
 704
 705         if (ACPI_SUCCESS
 706             (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
 707                 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
 708                 if (ACPI_FAILURE
 709                     (acpi_evaluate_object
 710                      (device->handle, METHOD_NAME__INI, NULL, NULL)))
 711                         pr_err("_INI Method failed\n");
 712         }
 713
 714         /* do config (detect defaults) */
 715         use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0;
 716         disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0;
 717         vdbg_printk(FUJLAPTOP_DBG_INFO,
 718                     "config: [alt interface: %d], [adjust disable: %d]\n",
 719                     use_alt_lcd_levels, disable_brightness_adjust);
 720
 721         if (get_max_brightness() <= 0)
 722                 fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS;
 723         get_lcd_level();
 724
 725         return result;
 726
 727 err_unregister_input_dev:
 728         input_unregister_device(input);
 729         input = NULL;
 730 err_free_input_dev:
 731         input_free_device(input);
 732 err_stop:
 733         return result;
 734 }
 735
 736 static int acpi_fujitsu_remove(struct acpi_device *device)
 737 {
 738         struct fujitsu_t *fujitsu = acpi_driver_data(device);
 739         struct input_dev *input = fujitsu->input;
 740
 741         input_unregister_device(input);
 742
 743         fujitsu->acpi_handle = NULL;
 744
 745         return 0;
 746 }
 747
 748 /* Brightness notify */
 749
 750 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
 751 {
 752         struct input_dev *input;
 753         int keycode;
 754         int oldb, newb;
 755
 756         input = fujitsu->input;
 757
 758         switch (event) {
 759         case ACPI_FUJITSU_NOTIFY_CODE1:
 760                 keycode = 0;
 761                 oldb = fujitsu->brightness_level;
 762                 get_lcd_level();
 763                 newb = fujitsu->brightness_level;
 764
 765                 vdbg_printk(FUJLAPTOP_DBG_TRACE,
 766                             "brightness button event [%i -> %i (%i)]\n",
 767                             oldb, newb, fujitsu->brightness_changed);
 768
 769                 if (oldb < newb) {
 770                         if (disable_brightness_adjust != 1) {
 771                                 if (use_alt_lcd_levels)
 772                                         set_lcd_level_alt(newb);
 773                                 else
 774                                         set_lcd_level(newb);
 775                         }
 776                         keycode = KEY_BRIGHTNESSUP;
 777                 } else 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                         keycode = KEY_BRIGHTNESSDOWN;
 785                 }
 786                 break;
 787         default:
 788                 keycode = KEY_UNKNOWN;
 789                 vdbg_printk(FUJLAPTOP_DBG_WARN,
 790                             "unsupported event [0x%x]\n", event);
 791                 break;
 792         }
 793
 794         if (keycode != 0) {
 795                 input_report_key(input, keycode, 1);
 796                 input_sync(input);
 797                 input_report_key(input, keycode, 0);
 798                 input_sync(input);
 799         }
 800 }
 801
 802 /* ACPI device for hotkey handling */
 803
 804 static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
 805 {
 806         acpi_handle handle;
 807         int result = 0;
 808         int state = 0;
 809         struct input_dev *input;
 810         int error;
 811         int i;
 812
 813         if (!device)
 814                 return -EINVAL;
 815
 816         fujitsu_hotkey->acpi_handle = device->handle;
 817         sprintf(acpi_device_name(device), "%s",
 818                 ACPI_FUJITSU_HOTKEY_DEVICE_NAME);
 819         sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
 820         device->driver_data = fujitsu_hotkey;
 821
 822         /* kfifo */
 823         spin_lock_init(&fujitsu_hotkey->fifo_lock);
 824         error = kfifo_alloc(&fujitsu_hotkey->fifo, RINGBUFFERSIZE * sizeof(int),
 825                         GFP_KERNEL);
 826         if (error) {
 827                 pr_err("kfifo_alloc failed\n");
 828                 goto err_stop;
 829         }
 830
 831         fujitsu_hotkey->input = input = input_allocate_device();
 832         if (!input) {
 833                 error = -ENOMEM;
 834                 goto err_free_fifo;
 835         }
 836
 837         snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys),
 838                  "%s/video/input0", acpi_device_hid(device));
 839
 840         input->name = acpi_device_name(device);
 841         input->phys = fujitsu_hotkey->phys;
 842         input->id.bustype = BUS_HOST;
 843         input->id.product = 0x06;
 844         input->dev.parent = &device->dev;
 845
 846         set_bit(EV_KEY, input->evbit);
 847         set_bit(fujitsu->keycode1, input->keybit);
 848         set_bit(fujitsu->keycode2, input->keybit);
 849         set_bit(fujitsu->keycode3, input->keybit);
 850         set_bit(fujitsu->keycode4, input->keybit);
 851         set_bit(KEY_UNKNOWN, input->keybit);
 852
 853         error = input_register_device(input);
 854         if (error)
 855                 goto err_free_input_dev;
 856
 857         result = acpi_bus_update_power(fujitsu_hotkey->acpi_handle, &state);
 858         if (result) {
 859                 pr_err("Error reading power state\n");
 860                 goto err_unregister_input_dev;
 861         }
 862
 863         pr_info("ACPI: %s [%s] (%s)\n",
 864                 acpi_device_name(device), acpi_device_bid(device),
 865                 !device->power.state ? "on" : "off");
 866
 867         fujitsu_hotkey->dev = device;
 868
 869         if (ACPI_SUCCESS
 870             (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
 871                 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
 872                 if (ACPI_FAILURE
 873                     (acpi_evaluate_object
 874                      (device->handle, METHOD_NAME__INI, NULL, NULL)))
 875                         pr_err("_INI Method failed\n");
 876         }
 877
 878         i = 0;
 879         while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0
 880                 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE)
 881                 ; /* No action, result is discarded */
 882         vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i);
 883
 884         fujitsu_hotkey->rfkill_supported =
 885                 call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0);
 886
 887         /* Make sure our bitmask of supported functions is cleared if the
 888            RFKILL function block is not implemented, like on the S7020. */
 889         if (fujitsu_hotkey->rfkill_supported == UNSUPPORTED_CMD)
 890                 fujitsu_hotkey->rfkill_supported = 0;
 891
 892         if (fujitsu_hotkey->rfkill_supported)
 893                 fujitsu_hotkey->rfkill_state =
 894                         call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
 895
 896         /* Suspect this is a keymap of the application panel, print it */
 897         pr_info("BTNI: [0x%x]\n", call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0));
 898
 899 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 900         if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) {
 901                 result = led_classdev_register(&fujitsu->pf_device->dev,
 902                                                 &logolamp_led);
 903                 if (result == 0) {
 904                         fujitsu_hotkey->logolamp_registered = 1;
 905                 } else {
 906                         pr_err("Could not register LED handler for logo lamp, error %i\n",
 907                                result);
 908                 }
 909         }
 910
 911         if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) &&
 912            (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) {
 913                 result = led_classdev_register(&fujitsu->pf_device->dev,
 914                                                 &kblamps_led);
 915                 if (result == 0) {
 916                         fujitsu_hotkey->kblamps_registered = 1;
 917                 } else {
 918                         pr_err("Could not register LED handler for keyboard lamps, error %i\n",
 919                                result);
 920                 }
 921         }
 922 #endif
 923
 924         return result;
 925
 926 err_unregister_input_dev:
 927         input_unregister_device(input);
 928         input = NULL;
 929 err_free_input_dev:
 930         input_free_device(input);
 931 err_free_fifo:
 932         kfifo_free(&fujitsu_hotkey->fifo);
 933 err_stop:
 934         return result;
 935 }
 936
 937 static int acpi_fujitsu_hotkey_remove(struct acpi_device *device)
 938 {
 939         struct fujitsu_hotkey_t *fujitsu_hotkey = acpi_driver_data(device);
 940         struct input_dev *input = fujitsu_hotkey->input;
 941
 942 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
 943         if (fujitsu_hotkey->logolamp_registered)
 944                 led_classdev_unregister(&logolamp_led);
 945
 946         if (fujitsu_hotkey->kblamps_registered)
 947                 led_classdev_unregister(&kblamps_led);
 948 #endif
 949
 950         input_unregister_device(input);
 951
 952         kfifo_free(&fujitsu_hotkey->fifo);
 953
 954         fujitsu_hotkey->acpi_handle = NULL;
 955
 956         return 0;
 957 }
 958
 959 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event)
 960 {
 961         struct input_dev *input;
 962         int keycode, keycode_r;
 963         unsigned int irb = 1;
 964         int i, status;
 965
 966         input = fujitsu_hotkey->input;
 967
 968         if (fujitsu_hotkey->rfkill_supported)
 969                 fujitsu_hotkey->rfkill_state =
 970                         call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0);
 971
 972         switch (event) {
 973         case ACPI_FUJITSU_NOTIFY_CODE1:
 974                 i = 0;
 975                 while ((irb =
 976                         call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0
 977                                 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) {
 978                         switch (irb & 0x4ff) {
 979                         case KEY1_CODE:
 980                                 keycode = fujitsu->keycode1;
 981                                 break;
 982                         case KEY2_CODE:
 983                                 keycode = fujitsu->keycode2;
 984                                 break;
 985                         case KEY3_CODE:
 986                                 keycode = fujitsu->keycode3;
 987                                 break;
 988                         case KEY4_CODE:
 989                                 keycode = fujitsu->keycode4;
 990                                 break;
 991                         case 0:
 992                                 keycode = 0;
 993                                 break;
 994                         default:
 995                                 vdbg_printk(FUJLAPTOP_DBG_WARN,
 996                                             "Unknown GIRB result [%x]\n", irb);
 997                                 keycode = -1;
 998                                 break;
 999                         }
1000                         if (keycode > 0) {
1001                                 vdbg_printk(FUJLAPTOP_DBG_TRACE,
1002                                         "Push keycode into ringbuffer [%d]\n",
1003                                         keycode);
1004                                 status = kfifo_in_locked(&fujitsu_hotkey->fifo,
1005                                                    (unsigned char *)&keycode,
1006                                                    sizeof(keycode),
1007                                                    &fujitsu_hotkey->fifo_lock);
1008                                 if (status != sizeof(keycode)) {
1009                                         vdbg_printk(FUJLAPTOP_DBG_WARN,
1010                                             "Could not push keycode [0x%x]\n",
1011                                             keycode);
1012                                 } else {
1013                                         input_report_key(input, keycode, 1);
1014                                         input_sync(input);
1015                                 }
1016                         } else if (keycode == 0) {
1017                                 while ((status =
1018                                         kfifo_out_locked(
1019                                          &fujitsu_hotkey->fifo,
1020                                          (unsigned char *) &keycode_r,
1021                                          sizeof(keycode_r),
1022                                          &fujitsu_hotkey->fifo_lock))
1023                                          == sizeof(keycode_r)) {
1024                                         input_report_key(input, keycode_r, 0);
1025                                         input_sync(input);
1026                                         vdbg_printk(FUJLAPTOP_DBG_TRACE,
1027                                           "Pop keycode from ringbuffer [%d]\n",
1028                                           keycode_r);
1029                                 }
1030                         }
1031                 }
1032
1033                 break;
1034         default:
1035                 keycode = KEY_UNKNOWN;
1036                 vdbg_printk(FUJLAPTOP_DBG_WARN,
1037                             "Unsupported event [0x%x]\n", event);
1038                 input_report_key(input, keycode, 1);
1039                 input_sync(input);
1040                 input_report_key(input, keycode, 0);
1041                 input_sync(input);
1042                 break;
1043         }
1044 }
1045
1046 /* Initialization */
1047
1048 static const struct acpi_device_id fujitsu_device_ids[] = {
1049         {ACPI_FUJITSU_HID, 0},
1050         {"", 0},
1051 };
1052
1053 static struct acpi_driver acpi_fujitsu_driver = {
1054         .name = ACPI_FUJITSU_DRIVER_NAME,
1055         .class = ACPI_FUJITSU_CLASS,
1056         .ids = fujitsu_device_ids,
1057         .ops = {
1058                 .add = acpi_fujitsu_add,
1059                 .remove = acpi_fujitsu_remove,
1060                 .notify = acpi_fujitsu_notify,
1061                 },
1062 };
1063
1064 static const struct acpi_device_id fujitsu_hotkey_device_ids[] = {
1065         {ACPI_FUJITSU_HOTKEY_HID, 0},
1066         {"", 0},
1067 };
1068
1069 static struct acpi_driver acpi_fujitsu_hotkey_driver = {
1070         .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME,
1071         .class = ACPI_FUJITSU_CLASS,
1072         .ids = fujitsu_hotkey_device_ids,
1073         .ops = {
1074                 .add = acpi_fujitsu_hotkey_add,
1075                 .remove = acpi_fujitsu_hotkey_remove,
1076                 .notify = acpi_fujitsu_hotkey_notify,
1077                 },
1078 };
1079
1080 static int __init fujitsu_init(void)
1081 {
1082         int ret, result, max_brightness;
1083
1084         if (acpi_disabled)
1085                 return -ENODEV;
1086
1087         fujitsu = kzalloc(sizeof(struct fujitsu_t), GFP_KERNEL);
1088         if (!fujitsu)
1089                 return -ENOMEM;
1090         fujitsu->keycode1 = KEY_PROG1;
1091         fujitsu->keycode2 = KEY_PROG2;
1092         fujitsu->keycode3 = KEY_PROG3;
1093         fujitsu->keycode4 = KEY_PROG4;
1094         dmi_check_system(fujitsu_dmi_table);
1095
1096         result = acpi_bus_register_driver(&acpi_fujitsu_driver);
1097         if (result < 0) {
1098                 ret = -ENODEV;
1099                 goto fail_acpi;
1100         }
1101
1102         /* Register platform stuff */
1103
1104         fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1);
1105         if (!fujitsu->pf_device) {
1106                 ret = -ENOMEM;
1107                 goto fail_platform_driver;
1108         }
1109
1110         ret = platform_device_add(fujitsu->pf_device);
1111         if (ret)
1112                 goto fail_platform_device1;
1113
1114         ret =
1115             sysfs_create_group(&fujitsu->pf_device->dev.kobj,
1116                                &fujitsupf_attribute_group);
1117         if (ret)
1118                 goto fail_platform_device2;
1119
1120         /* Register backlight stuff */
1121
1122         if (!acpi_video_backlight_support()) {
1123                 struct backlight_properties props;
1124
1125                 memset(&props, 0, sizeof(struct backlight_properties));
1126                 max_brightness = fujitsu->max_brightness;
1127                 props.type = BACKLIGHT_PLATFORM;
1128                 props.max_brightness = max_brightness - 1;
1129                 fujitsu->bl_device = backlight_device_register("fujitsu-laptop",
1130                                                                NULL, NULL,
1131                                                                &fujitsubl_ops,
1132                                                                &props);
1133                 if (IS_ERR(fujitsu->bl_device)) {
1134                         ret = PTR_ERR(fujitsu->bl_device);
1135                         fujitsu->bl_device = NULL;
1136                         goto fail_sysfs_group;
1137                 }
1138                 fujitsu->bl_device->props.brightness = fujitsu->brightness_level;
1139         }
1140
1141         ret = platform_driver_register(&fujitsupf_driver);
1142         if (ret)
1143                 goto fail_backlight;
1144
1145         /* Register hotkey driver */
1146
1147         fujitsu_hotkey = kzalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL);
1148         if (!fujitsu_hotkey) {
1149                 ret = -ENOMEM;
1150                 goto fail_hotkey;
1151         }
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         pr_info("driver " FUJITSU_DRIVER_VERSION " successfully loaded\n");
1169
1170         return 0;
1171
1172 fail_hotkey1:
1173         kfree(fujitsu_hotkey);
1174 fail_hotkey:
1175         platform_driver_unregister(&fujitsupf_driver);
1176 fail_backlight:
1177         if (fujitsu->bl_device)
1178                 backlight_device_unregister(fujitsu->bl_device);
1179 fail_sysfs_group:
1180         sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1181                            &fujitsupf_attribute_group);
1182 fail_platform_device2:
1183         platform_device_del(fujitsu->pf_device);
1184 fail_platform_device1:
1185         platform_device_put(fujitsu->pf_device);
1186 fail_platform_driver:
1187         acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1188 fail_acpi:
1189         kfree(fujitsu);
1190
1191         return ret;
1192 }
1193
1194 static void __exit fujitsu_cleanup(void)
1195 {
1196         acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver);
1197
1198         kfree(fujitsu_hotkey);
1199
1200         platform_driver_unregister(&fujitsupf_driver);
1201
1202         if (fujitsu->bl_device)
1203                 backlight_device_unregister(fujitsu->bl_device);
1204
1205         sysfs_remove_group(&fujitsu->pf_device->dev.kobj,
1206                            &fujitsupf_attribute_group);
1207
1208         platform_device_unregister(fujitsu->pf_device);
1209
1210         acpi_bus_unregister_driver(&acpi_fujitsu_driver);
1211
1212         kfree(fujitsu);
1213
1214         pr_info("driver unloaded\n");
1215 }
1216
1217 module_init(fujitsu_init);
1218 module_exit(fujitsu_cleanup);
1219
1220 module_param(use_alt_lcd_levels, uint, 0644);
1221 MODULE_PARM_DESC(use_alt_lcd_levels,
1222                  "Use alternative interface for lcd_levels (needed for Lifebook s6410).");
1223 module_param(disable_brightness_adjust, uint, 0644);
1224 MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment .");
1225 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG
1226 module_param_named(debug, dbg_level, uint, 0644);
1227 MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
1228 #endif
1229
1230 MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon");
1231 MODULE_DESCRIPTION("Fujitsu laptop extras support");
1232 MODULE_VERSION(FUJITSU_DRIVER_VERSION);
1233 MODULE_LICENSE("GPL");
1234
1235 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*");
1236 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*");
1237 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*");
1238
1239 static struct pnp_device_id pnp_ids[] __used = {
1240         {.id = "FUJ02bf"},
1241         {.id = "FUJ02B1"},
1242         {.id = "FUJ02E3"},
1243         {.id = ""}
1244 };
1245
1246 MODULE_DEVICE_TABLE(pnp, pnp_ids);