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#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 */ 145struct 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 159static struct fujitsu_t *fujitsu; 160static int use_alt_lcd_levels = -1; 161static int disable_brightness_adjust = -1; 162 163/* Device used to access other hotkeys on the laptop */ 164struct 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 178static struct fujitsu_hotkey_t *fujitsu_hotkey; 179 180static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event); 181 182#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) 183static enum led_brightness logolamp_get(struct led_classdev *cdev); 184static void logolamp_set(struct led_classdev *cdev, 185 enum led_brightness brightness); 186 187static struct led_classdev logolamp_led = { 188 .name = "fujitsu::logolamp", 189 .brightness_get = logolamp_get, 190 .brightness_set = logolamp_set 191}; 192 193static enum led_brightness kblamps_get(struct led_classdev *cdev); 194static void kblamps_set(struct led_classdev *cdev, 195 enum led_brightness brightness); 196 197static 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 205static u32 dbg_level = 0x03; 206#endif 207 208static void acpi_fujitsu_notify(struct acpi_device *device, u32 event); 209 210/* Fujitsu ACPI interface function */ 211 212static 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, ¶ms[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 266static 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 280static 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 289static 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 304static 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 317static 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 345static 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 373static 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 395static 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 414static int bl_get_brightness(struct backlight_device *b) 415{ 416 return get_lcd_level(); 417} 418 419static 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 442static 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 449static ssize_t 450show_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 463static ssize_t 464show_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 477static 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 490static 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 515static ssize_t 516ignore_store(struct device *dev, 517 struct device_attribute *attr, const char *buf, size_t count) 518{ 519 return count; 520} 521 522static ssize_t 523show_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 534static ssize_t 535show_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 546static ssize_t 547show_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 558static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store); 559static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed, 560 ignore_store); 561static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level); 562static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store); 563static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store); 564static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store); 565 566static 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 576static struct attribute_group fujitsupf_attribute_group = { 577 .attrs = fujitsupf_attributes 578}; 579 580static struct platform_driver fujitsupf_driver = { 581 .driver = { 582 .name = "fujitsu-laptop", 583 .owner = THIS_MODULE, 584 } 585}; 586 587static 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 602static 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 610static 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 618static 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 627static 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 654static 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 727err_unregister_input_dev: 728 input_unregister_device(input); 729 input = NULL; 730err_free_input_dev: 731 input_free_device(input); 732err_stop: 733 return result; 734} 735 736static int acpi_fujitsu_remove(struct acpi_device *device, int type) 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 750static 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 acpi_bus_generate_proc_event(fujitsu->dev, 777 ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0); 778 keycode = KEY_BRIGHTNESSUP; 779 } else if (oldb > newb) { 780 if (disable_brightness_adjust != 1) { 781 if (use_alt_lcd_levels) 782 set_lcd_level_alt(newb); 783 else 784 set_lcd_level(newb); 785 } 786 acpi_bus_generate_proc_event(fujitsu->dev, 787 ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0); 788 keycode = KEY_BRIGHTNESSDOWN; 789 } 790 break; 791 default: 792 keycode = KEY_UNKNOWN; 793 vdbg_printk(FUJLAPTOP_DBG_WARN, 794 "unsupported event [0x%x]\n", event); 795 break; 796 } 797 798 if (keycode != 0) { 799 input_report_key(input, keycode, 1); 800 input_sync(input); 801 input_report_key(input, keycode, 0); 802 input_sync(input); 803 } 804} 805 806/* ACPI device for hotkey handling */ 807 808static int acpi_fujitsu_hotkey_add(struct acpi_device *device) 809{ 810 acpi_handle handle; 811 int result = 0; 812 int state = 0; 813 struct input_dev *input; 814 int error; 815 int i; 816 817 if (!device) 818 return -EINVAL; 819 820 fujitsu_hotkey->acpi_handle = device->handle; 821 sprintf(acpi_device_name(device), "%s", 822 ACPI_FUJITSU_HOTKEY_DEVICE_NAME); 823 sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS); 824 device->driver_data = fujitsu_hotkey; 825 826 /* kfifo */ 827 spin_lock_init(&fujitsu_hotkey->fifo_lock); 828 error = kfifo_alloc(&fujitsu_hotkey->fifo, RINGBUFFERSIZE * sizeof(int), 829 GFP_KERNEL); 830 if (error) { 831 pr_err("kfifo_alloc failed\n"); 832 goto err_stop; 833 } 834 835 fujitsu_hotkey->input = input = input_allocate_device(); 836 if (!input) { 837 error = -ENOMEM; 838 goto err_free_fifo; 839 } 840 841 snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys), 842 "%s/video/input0", acpi_device_hid(device)); 843 844 input->name = acpi_device_name(device); 845 input->phys = fujitsu_hotkey->phys; 846 input->id.bustype = BUS_HOST; 847 input->id.product = 0x06; 848 input->dev.parent = &device->dev; 849 850 set_bit(EV_KEY, input->evbit); 851 set_bit(fujitsu->keycode1, input->keybit); 852 set_bit(fujitsu->keycode2, input->keybit); 853 set_bit(fujitsu->keycode3, input->keybit); 854 set_bit(fujitsu->keycode4, input->keybit); 855 set_bit(KEY_UNKNOWN, input->keybit); 856 857 error = input_register_device(input); 858 if (error) 859 goto err_free_input_dev; 860 861 result = acpi_bus_update_power(fujitsu_hotkey->acpi_handle, &state); 862 if (result) { 863 pr_err("Error reading power state\n"); 864 goto err_unregister_input_dev; 865 } 866 867 pr_info("ACPI: %s [%s] (%s)\n", 868 acpi_device_name(device), acpi_device_bid(device), 869 !device->power.state ? "on" : "off"); 870 871 fujitsu_hotkey->dev = device; 872 873 if (ACPI_SUCCESS 874 (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) { 875 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n"); 876 if (ACPI_FAILURE 877 (acpi_evaluate_object 878 (device->handle, METHOD_NAME__INI, NULL, NULL))) 879 pr_err("_INI Method failed\n"); 880 } 881 882 i = 0; 883 while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0 884 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) 885 ; /* No action, result is discarded */ 886 vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i); 887 888 fujitsu_hotkey->rfkill_supported = 889 call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0); 890 891 /* Make sure our bitmask of supported functions is cleared if the 892 RFKILL function block is not implemented, like on the S7020. */ 893 if (fujitsu_hotkey->rfkill_supported == UNSUPPORTED_CMD) 894 fujitsu_hotkey->rfkill_supported = 0; 895 896 if (fujitsu_hotkey->rfkill_supported) 897 fujitsu_hotkey->rfkill_state = 898 call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); 899 900 /* Suspect this is a keymap of the application panel, print it */ 901 pr_info("BTNI: [0x%x]\n", call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0)); 902 903#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) 904 if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) { 905 result = led_classdev_register(&fujitsu->pf_device->dev, 906 &logolamp_led); 907 if (result == 0) { 908 fujitsu_hotkey->logolamp_registered = 1; 909 } else { 910 pr_err("Could not register LED handler for logo lamp, error %i\n", 911 result); 912 } 913 } 914 915 if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) && 916 (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) { 917 result = led_classdev_register(&fujitsu->pf_device->dev, 918 &kblamps_led); 919 if (result == 0) { 920 fujitsu_hotkey->kblamps_registered = 1; 921 } else { 922 pr_err("Could not register LED handler for keyboard lamps, error %i\n", 923 result); 924 } 925 } 926#endif 927 928 return result; 929 930err_unregister_input_dev: 931 input_unregister_device(input); 932 input = NULL; 933err_free_input_dev: 934 input_free_device(input); 935err_free_fifo: 936 kfifo_free(&fujitsu_hotkey->fifo); 937err_stop: 938 return result; 939} 940 941static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type) 942{ 943 struct fujitsu_hotkey_t *fujitsu_hotkey = acpi_driver_data(device); 944 struct input_dev *input = fujitsu_hotkey->input; 945 946#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) 947 if (fujitsu_hotkey->logolamp_registered) 948 led_classdev_unregister(&logolamp_led); 949 950 if (fujitsu_hotkey->kblamps_registered) 951 led_classdev_unregister(&kblamps_led); 952#endif 953 954 input_unregister_device(input); 955 956 kfifo_free(&fujitsu_hotkey->fifo); 957 958 fujitsu_hotkey->acpi_handle = NULL; 959 960 return 0; 961} 962 963static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event) 964{ 965 struct input_dev *input; 966 int keycode, keycode_r; 967 unsigned int irb = 1; 968 int i, status; 969 970 input = fujitsu_hotkey->input; 971 972 if (fujitsu_hotkey->rfkill_supported) 973 fujitsu_hotkey->rfkill_state = 974 call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); 975 976 switch (event) { 977 case ACPI_FUJITSU_NOTIFY_CODE1: 978 i = 0; 979 while ((irb = 980 call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0 981 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) { 982 switch (irb & 0x4ff) { 983 case KEY1_CODE: 984 keycode = fujitsu->keycode1; 985 break; 986 case KEY2_CODE: 987 keycode = fujitsu->keycode2; 988 break; 989 case KEY3_CODE: 990 keycode = fujitsu->keycode3; 991 break; 992 case KEY4_CODE: 993 keycode = fujitsu->keycode4; 994 break; 995 case 0: 996 keycode = 0; 997 break; 998 default: 999 vdbg_printk(FUJLAPTOP_DBG_WARN, 1000 "Unknown GIRB result [%x]\n", irb); 1001 keycode = -1; 1002 break; 1003 } 1004 if (keycode > 0) { 1005 vdbg_printk(FUJLAPTOP_DBG_TRACE, 1006 "Push keycode into ringbuffer [%d]\n", 1007 keycode); 1008 status = kfifo_in_locked(&fujitsu_hotkey->fifo, 1009 (unsigned char *)&keycode, 1010 sizeof(keycode), 1011 &fujitsu_hotkey->fifo_lock); 1012 if (status != sizeof(keycode)) { 1013 vdbg_printk(FUJLAPTOP_DBG_WARN, 1014 "Could not push keycode [0x%x]\n", 1015 keycode); 1016 } else { 1017 input_report_key(input, keycode, 1); 1018 input_sync(input); 1019 } 1020 } else if (keycode == 0) { 1021 while ((status = 1022 kfifo_out_locked( 1023 &fujitsu_hotkey->fifo, 1024 (unsigned char *) &keycode_r, 1025 sizeof(keycode_r), 1026 &fujitsu_hotkey->fifo_lock)) 1027 == sizeof(keycode_r)) { 1028 input_report_key(input, keycode_r, 0); 1029 input_sync(input); 1030 vdbg_printk(FUJLAPTOP_DBG_TRACE, 1031 "Pop keycode from ringbuffer [%d]\n", 1032 keycode_r); 1033 } 1034 } 1035 } 1036 1037 break; 1038 default: 1039 keycode = KEY_UNKNOWN; 1040 vdbg_printk(FUJLAPTOP_DBG_WARN, 1041 "Unsupported event [0x%x]\n", event); 1042 input_report_key(input, keycode, 1); 1043 input_sync(input); 1044 input_report_key(input, keycode, 0); 1045 input_sync(input); 1046 break; 1047 } 1048} 1049 1050/* Initialization */ 1051 1052static const struct acpi_device_id fujitsu_device_ids[] = { 1053 {ACPI_FUJITSU_HID, 0}, 1054 {"", 0}, 1055}; 1056 1057static struct acpi_driver acpi_fujitsu_driver = { 1058 .name = ACPI_FUJITSU_DRIVER_NAME, 1059 .class = ACPI_FUJITSU_CLASS, 1060 .ids = fujitsu_device_ids, 1061 .ops = { 1062 .add = acpi_fujitsu_add, 1063 .remove = acpi_fujitsu_remove, 1064 .notify = acpi_fujitsu_notify, 1065 }, 1066}; 1067 1068static const struct acpi_device_id fujitsu_hotkey_device_ids[] = { 1069 {ACPI_FUJITSU_HOTKEY_HID, 0}, 1070 {"", 0}, 1071}; 1072 1073static struct acpi_driver acpi_fujitsu_hotkey_driver = { 1074 .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME, 1075 .class = ACPI_FUJITSU_CLASS, 1076 .ids = fujitsu_hotkey_device_ids, 1077 .ops = { 1078 .add = acpi_fujitsu_hotkey_add, 1079 .remove = acpi_fujitsu_hotkey_remove, 1080 .notify = acpi_fujitsu_hotkey_notify, 1081 }, 1082}; 1083 1084static int __init fujitsu_init(void) 1085{ 1086 int ret, result, max_brightness; 1087 1088 if (acpi_disabled) 1089 return -ENODEV; 1090 1091 fujitsu = kzalloc(sizeof(struct fujitsu_t), GFP_KERNEL); 1092 if (!fujitsu) 1093 return -ENOMEM; 1094 fujitsu->keycode1 = KEY_PROG1; 1095 fujitsu->keycode2 = KEY_PROG2; 1096 fujitsu->keycode3 = KEY_PROG3; 1097 fujitsu->keycode4 = KEY_PROG4; 1098 dmi_check_system(fujitsu_dmi_table); 1099 1100 result = acpi_bus_register_driver(&acpi_fujitsu_driver); 1101 if (result < 0) { 1102 ret = -ENODEV; 1103 goto fail_acpi; 1104 } 1105 1106 /* Register platform stuff */ 1107 1108 fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1); 1109 if (!fujitsu->pf_device) { 1110 ret = -ENOMEM; 1111 goto fail_platform_driver; 1112 } 1113 1114 ret = platform_device_add(fujitsu->pf_device); 1115 if (ret) 1116 goto fail_platform_device1; 1117 1118 ret = 1119 sysfs_create_group(&fujitsu->pf_device->dev.kobj, 1120 &fujitsupf_attribute_group); 1121 if (ret) 1122 goto fail_platform_device2; 1123 1124 /* Register backlight stuff */ 1125 1126 if (!acpi_video_backlight_support()) { 1127 struct backlight_properties props; 1128 1129 memset(&props, 0, sizeof(struct backlight_properties)); 1130 max_brightness = fujitsu->max_brightness; 1131 props.type = BACKLIGHT_PLATFORM; 1132 props.max_brightness = max_brightness - 1; 1133 fujitsu->bl_device = backlight_device_register("fujitsu-laptop", 1134 NULL, NULL, 1135 &fujitsubl_ops, 1136 &props); 1137 if (IS_ERR(fujitsu->bl_device)) { 1138 ret = PTR_ERR(fujitsu->bl_device); 1139 fujitsu->bl_device = NULL; 1140 goto fail_sysfs_group; 1141 } 1142 fujitsu->bl_device->props.brightness = fujitsu->brightness_level; 1143 } 1144 1145 ret = platform_driver_register(&fujitsupf_driver); 1146 if (ret) 1147 goto fail_backlight; 1148 1149 /* Register hotkey driver */ 1150 1151 fujitsu_hotkey = kzalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL); 1152 if (!fujitsu_hotkey) { 1153 ret = -ENOMEM; 1154 goto fail_hotkey; 1155 } 1156 1157 result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver); 1158 if (result < 0) { 1159 ret = -ENODEV; 1160 goto fail_hotkey1; 1161 } 1162 1163 /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */ 1164 1165 if (!acpi_video_backlight_support()) { 1166 if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3) 1167 fujitsu->bl_device->props.power = 4; 1168 else 1169 fujitsu->bl_device->props.power = 0; 1170 } 1171 1172 pr_info("driver " FUJITSU_DRIVER_VERSION " successfully loaded\n"); 1173 1174 return 0; 1175 1176fail_hotkey1: 1177 kfree(fujitsu_hotkey); 1178fail_hotkey: 1179 platform_driver_unregister(&fujitsupf_driver); 1180fail_backlight: 1181 if (fujitsu->bl_device) 1182 backlight_device_unregister(fujitsu->bl_device); 1183fail_sysfs_group: 1184 sysfs_remove_group(&fujitsu->pf_device->dev.kobj, 1185 &fujitsupf_attribute_group); 1186fail_platform_device2: 1187 platform_device_del(fujitsu->pf_device); 1188fail_platform_device1: 1189 platform_device_put(fujitsu->pf_device); 1190fail_platform_driver: 1191 acpi_bus_unregister_driver(&acpi_fujitsu_driver); 1192fail_acpi: 1193 kfree(fujitsu); 1194 1195 return ret; 1196} 1197 1198static void __exit fujitsu_cleanup(void) 1199{ 1200 acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver); 1201 1202 kfree(fujitsu_hotkey); 1203 1204 platform_driver_unregister(&fujitsupf_driver); 1205 1206 if (fujitsu->bl_device) 1207 backlight_device_unregister(fujitsu->bl_device); 1208 1209 sysfs_remove_group(&fujitsu->pf_device->dev.kobj, 1210 &fujitsupf_attribute_group); 1211 1212 platform_device_unregister(fujitsu->pf_device); 1213 1214 acpi_bus_unregister_driver(&acpi_fujitsu_driver); 1215 1216 kfree(fujitsu); 1217 1218 pr_info("driver unloaded\n"); 1219} 1220 1221module_init(fujitsu_init); 1222module_exit(fujitsu_cleanup); 1223 1224module_param(use_alt_lcd_levels, uint, 0644); 1225MODULE_PARM_DESC(use_alt_lcd_levels, 1226 "Use alternative interface for lcd_levels (needed for Lifebook s6410)."); 1227module_param(disable_brightness_adjust, uint, 0644); 1228MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment ."); 1229#ifdef CONFIG_FUJITSU_LAPTOP_DEBUG 1230module_param_named(debug, dbg_level, uint, 0644); 1231MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); 1232#endif 1233 1234MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon"); 1235MODULE_DESCRIPTION("Fujitsu laptop extras support"); 1236MODULE_VERSION(FUJITSU_DRIVER_VERSION); 1237MODULE_LICENSE("GPL"); 1238 1239MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*"); 1240MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*"); 1241MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*"); 1242 1243static struct pnp_device_id pnp_ids[] __used = { 1244 {.id = "FUJ02bf"}, 1245 {.id = "FUJ02B1"}, 1246 {.id = "FUJ02E3"}, 1247 {.id = ""} 1248}; 1249 1250MODULE_DEVICE_TABLE(pnp, pnp_ids); 1251