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, ¶ms[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); 1263