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, ¶ms[0] }; 222 unsigned long long value; 223 acpi_handle handle = NULL; 224 225 status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle); 226 if (ACPI_FAILURE(status)) { 227 vdbg_printk(FUJLAPTOP_DBG_ERROR, 228 "FUNC interface is not present\n"); 229 return -ENODEV; 230 } 231 232 params[0].integer.value = cmd; 233 params[1].integer.value = arg0; 234 params[2].integer.value = arg1; 235 params[3].integer.value = arg2; 236 237 status = acpi_evaluate_integer(handle, NULL, &arg_list, &value); 238 if (ACPI_FAILURE(status)) { 239 vdbg_printk(FUJLAPTOP_DBG_WARN, 240 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n", 241 cmd, arg0, arg1, arg2); 242 return -ENODEV; 243 } 244 245 vdbg_printk(FUJLAPTOP_DBG_TRACE, 246 "FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n", 247 cmd, arg0, arg1, arg2, (int)value); 248 return value; 249 } 250 251 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) 252 /* LED class callbacks */ 253 254 static void logolamp_set(struct led_classdev *cdev, 255 enum led_brightness brightness) 256 { 257 if (brightness >= LED_FULL) { 258 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON); 259 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_ON); 260 } else if (brightness >= LED_HALF) { 261 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_ON); 262 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_ALWAYS, FUNC_LED_OFF); 263 } else { 264 call_fext_func(FUNC_LEDS, 0x1, LOGOLAMP_POWERON, FUNC_LED_OFF); 265 } 266 } 267 268 static void kblamps_set(struct led_classdev *cdev, 269 enum led_brightness brightness) 270 { 271 if (brightness >= LED_FULL) 272 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_ON); 273 else 274 call_fext_func(FUNC_LEDS, 0x1, KEYBOARD_LAMPS, FUNC_LED_OFF); 275 } 276 277 static enum led_brightness logolamp_get(struct led_classdev *cdev) 278 { 279 enum led_brightness brightness = LED_OFF; 280 int poweron, always; 281 282 poweron = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_POWERON, 0x0); 283 if (poweron == FUNC_LED_ON) { 284 brightness = LED_HALF; 285 always = call_fext_func(FUNC_LEDS, 0x2, LOGOLAMP_ALWAYS, 0x0); 286 if (always == FUNC_LED_ON) 287 brightness = LED_FULL; 288 } 289 return brightness; 290 } 291 292 static enum led_brightness kblamps_get(struct led_classdev *cdev) 293 { 294 enum led_brightness brightness = LED_OFF; 295 296 if (call_fext_func(FUNC_LEDS, 0x2, KEYBOARD_LAMPS, 0x0) == FUNC_LED_ON) 297 brightness = LED_FULL; 298 299 return brightness; 300 } 301 #endif 302 303 /* Hardware access for LCD brightness control */ 304 305 static int set_lcd_level(int level) 306 { 307 acpi_status status = AE_OK; 308 acpi_handle handle = NULL; 309 310 vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n", 311 level); 312 313 if (level < 0 || level >= fujitsu->max_brightness) 314 return -EINVAL; 315 316 status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle); 317 if (ACPI_FAILURE(status)) { 318 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n"); 319 return -ENODEV; 320 } 321 322 323 status = acpi_execute_simple_method(handle, NULL, level); 324 if (ACPI_FAILURE(status)) 325 return -ENODEV; 326 327 return 0; 328 } 329 330 static int set_lcd_level_alt(int level) 331 { 332 acpi_status status = AE_OK; 333 acpi_handle handle = NULL; 334 335 vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n", 336 level); 337 338 if (level < 0 || level >= fujitsu->max_brightness) 339 return -EINVAL; 340 341 status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle); 342 if (ACPI_FAILURE(status)) { 343 vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n"); 344 return -ENODEV; 345 } 346 347 status = acpi_execute_simple_method(handle, NULL, level); 348 if (ACPI_FAILURE(status)) 349 return -ENODEV; 350 351 return 0; 352 } 353 354 static int get_lcd_level(void) 355 { 356 unsigned long long state = 0; 357 acpi_status status = AE_OK; 358 359 vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n"); 360 361 status = 362 acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state); 363 if (ACPI_FAILURE(status)) 364 return 0; 365 366 fujitsu->brightness_level = state & 0x0fffffff; 367 368 if (state & 0x80000000) 369 fujitsu->brightness_changed = 1; 370 else 371 fujitsu->brightness_changed = 0; 372 373 return fujitsu->brightness_level; 374 } 375 376 static int get_max_brightness(void) 377 { 378 unsigned long long state = 0; 379 acpi_status status = AE_OK; 380 381 vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n"); 382 383 status = 384 acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state); 385 if (ACPI_FAILURE(status)) 386 return -1; 387 388 fujitsu->max_brightness = state; 389 390 return fujitsu->max_brightness; 391 } 392 393 /* Backlight device stuff */ 394 395 static int bl_get_brightness(struct backlight_device *b) 396 { 397 return get_lcd_level(); 398 } 399 400 static int bl_update_status(struct backlight_device *b) 401 { 402 int ret; 403 if (b->props.power == 4) 404 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x3); 405 else 406 ret = call_fext_func(FUNC_BACKLIGHT, 0x1, 0x4, 0x0); 407 if (ret != 0) 408 vdbg_printk(FUJLAPTOP_DBG_ERROR, 409 "Unable to adjust backlight power, error code %i\n", 410 ret); 411 412 if (use_alt_lcd_levels) 413 ret = set_lcd_level_alt(b->props.brightness); 414 else 415 ret = set_lcd_level(b->props.brightness); 416 if (ret != 0) 417 vdbg_printk(FUJLAPTOP_DBG_ERROR, 418 "Unable to adjust LCD brightness, error code %i\n", 419 ret); 420 return ret; 421 } 422 423 static const struct backlight_ops fujitsubl_ops = { 424 .get_brightness = bl_get_brightness, 425 .update_status = bl_update_status, 426 }; 427 428 /* Platform LCD brightness device */ 429 430 static ssize_t 431 show_max_brightness(struct device *dev, 432 struct device_attribute *attr, char *buf) 433 { 434 435 int ret; 436 437 ret = get_max_brightness(); 438 if (ret < 0) 439 return ret; 440 441 return sprintf(buf, "%i\n", ret); 442 } 443 444 static ssize_t 445 show_brightness_changed(struct device *dev, 446 struct device_attribute *attr, char *buf) 447 { 448 449 int ret; 450 451 ret = fujitsu->brightness_changed; 452 if (ret < 0) 453 return ret; 454 455 return sprintf(buf, "%i\n", ret); 456 } 457 458 static ssize_t show_lcd_level(struct device *dev, 459 struct device_attribute *attr, char *buf) 460 { 461 462 int ret; 463 464 ret = get_lcd_level(); 465 if (ret < 0) 466 return ret; 467 468 return sprintf(buf, "%i\n", ret); 469 } 470 471 static ssize_t store_lcd_level(struct device *dev, 472 struct device_attribute *attr, const char *buf, 473 size_t count) 474 { 475 476 int level, ret; 477 478 if (sscanf(buf, "%i", &level) != 1 479 || (level < 0 || level >= fujitsu->max_brightness)) 480 return -EINVAL; 481 482 if (use_alt_lcd_levels) 483 ret = set_lcd_level_alt(level); 484 else 485 ret = set_lcd_level(level); 486 if (ret < 0) 487 return ret; 488 489 ret = get_lcd_level(); 490 if (ret < 0) 491 return ret; 492 493 return count; 494 } 495 496 static ssize_t 497 ignore_store(struct device *dev, 498 struct device_attribute *attr, const char *buf, size_t count) 499 { 500 return count; 501 } 502 503 static ssize_t 504 show_lid_state(struct device *dev, 505 struct device_attribute *attr, char *buf) 506 { 507 if (!(fujitsu_hotkey->rfkill_supported & 0x100)) 508 return sprintf(buf, "unknown\n"); 509 if (fujitsu_hotkey->rfkill_state & 0x100) 510 return sprintf(buf, "open\n"); 511 else 512 return sprintf(buf, "closed\n"); 513 } 514 515 static ssize_t 516 show_dock_state(struct device *dev, 517 struct device_attribute *attr, char *buf) 518 { 519 if (!(fujitsu_hotkey->rfkill_supported & 0x200)) 520 return sprintf(buf, "unknown\n"); 521 if (fujitsu_hotkey->rfkill_state & 0x200) 522 return sprintf(buf, "docked\n"); 523 else 524 return sprintf(buf, "undocked\n"); 525 } 526 527 static ssize_t 528 show_radios_state(struct device *dev, 529 struct device_attribute *attr, char *buf) 530 { 531 if (!(fujitsu_hotkey->rfkill_supported & 0x20)) 532 return sprintf(buf, "unknown\n"); 533 if (fujitsu_hotkey->rfkill_state & 0x20) 534 return sprintf(buf, "on\n"); 535 else 536 return sprintf(buf, "killed\n"); 537 } 538 539 static DEVICE_ATTR(max_brightness, 0444, show_max_brightness, ignore_store); 540 static DEVICE_ATTR(brightness_changed, 0444, show_brightness_changed, 541 ignore_store); 542 static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level); 543 static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store); 544 static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store); 545 static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store); 546 547 static struct attribute *fujitsupf_attributes[] = { 548 &dev_attr_brightness_changed.attr, 549 &dev_attr_max_brightness.attr, 550 &dev_attr_lcd_level.attr, 551 &dev_attr_lid.attr, 552 &dev_attr_dock.attr, 553 &dev_attr_radios.attr, 554 NULL 555 }; 556 557 static struct attribute_group fujitsupf_attribute_group = { 558 .attrs = fujitsupf_attributes 559 }; 560 561 static struct platform_driver fujitsupf_driver = { 562 .driver = { 563 .name = "fujitsu-laptop", 564 .owner = THIS_MODULE, 565 } 566 }; 567 568 static void dmi_check_cb_common(const struct dmi_system_id *id) 569 { 570 pr_info("Identified laptop model '%s'\n", id->ident); 571 if (use_alt_lcd_levels == -1) { 572 if (acpi_has_method(NULL, 573 "\\_SB.PCI0.LPCB.FJEX.SBL2")) 574 use_alt_lcd_levels = 1; 575 else 576 use_alt_lcd_levels = 0; 577 vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as " 578 "%i\n", use_alt_lcd_levels); 579 } 580 } 581 582 static int dmi_check_cb_s6410(const struct dmi_system_id *id) 583 { 584 dmi_check_cb_common(id); 585 fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */ 586 fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */ 587 return 1; 588 } 589 590 static int dmi_check_cb_s6420(const struct dmi_system_id *id) 591 { 592 dmi_check_cb_common(id); 593 fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */ 594 fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */ 595 return 1; 596 } 597 598 static int dmi_check_cb_p8010(const struct dmi_system_id *id) 599 { 600 dmi_check_cb_common(id); 601 fujitsu->keycode1 = KEY_HELP; /* "Support" */ 602 fujitsu->keycode3 = KEY_SWITCHVIDEOMODE; /* "Presentation" */ 603 fujitsu->keycode4 = KEY_WWW; /* "Internet" */ 604 return 1; 605 } 606 607 static struct dmi_system_id fujitsu_dmi_table[] = { 608 { 609 .ident = "Fujitsu Siemens S6410", 610 .matches = { 611 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 612 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6410"), 613 }, 614 .callback = dmi_check_cb_s6410}, 615 { 616 .ident = "Fujitsu Siemens S6420", 617 .matches = { 618 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), 619 DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK S6420"), 620 }, 621 .callback = dmi_check_cb_s6420}, 622 { 623 .ident = "Fujitsu LifeBook P8010", 624 .matches = { 625 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU"), 626 DMI_MATCH(DMI_PRODUCT_NAME, "LifeBook P8010"), 627 }, 628 .callback = dmi_check_cb_p8010}, 629 {} 630 }; 631 632 /* ACPI device for LCD brightness control */ 633 634 static int acpi_fujitsu_add(struct acpi_device *device) 635 { 636 int state = 0; 637 struct input_dev *input; 638 int error; 639 640 if (!device) 641 return -EINVAL; 642 643 fujitsu->acpi_handle = device->handle; 644 sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME); 645 sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS); 646 device->driver_data = fujitsu; 647 648 fujitsu->input = input = input_allocate_device(); 649 if (!input) { 650 error = -ENOMEM; 651 goto err_stop; 652 } 653 654 snprintf(fujitsu->phys, sizeof(fujitsu->phys), 655 "%s/video/input0", acpi_device_hid(device)); 656 657 input->name = acpi_device_name(device); 658 input->phys = fujitsu->phys; 659 input->id.bustype = BUS_HOST; 660 input->id.product = 0x06; 661 input->dev.parent = &device->dev; 662 input->evbit[0] = BIT(EV_KEY); 663 set_bit(KEY_BRIGHTNESSUP, input->keybit); 664 set_bit(KEY_BRIGHTNESSDOWN, input->keybit); 665 set_bit(KEY_UNKNOWN, input->keybit); 666 667 error = input_register_device(input); 668 if (error) 669 goto err_free_input_dev; 670 671 error = acpi_bus_update_power(fujitsu->acpi_handle, &state); 672 if (error) { 673 pr_err("Error reading power state\n"); 674 goto err_unregister_input_dev; 675 } 676 677 pr_info("ACPI: %s [%s] (%s)\n", 678 acpi_device_name(device), acpi_device_bid(device), 679 !device->power.state ? "on" : "off"); 680 681 fujitsu->dev = device; 682 683 if (acpi_has_method(device->handle, METHOD_NAME__INI)) { 684 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n"); 685 if (ACPI_FAILURE 686 (acpi_evaluate_object 687 (device->handle, METHOD_NAME__INI, NULL, NULL))) 688 pr_err("_INI Method failed\n"); 689 } 690 691 /* do config (detect defaults) */ 692 use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0; 693 disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0; 694 vdbg_printk(FUJLAPTOP_DBG_INFO, 695 "config: [alt interface: %d], [adjust disable: %d]\n", 696 use_alt_lcd_levels, disable_brightness_adjust); 697 698 if (get_max_brightness() <= 0) 699 fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS; 700 get_lcd_level(); 701 702 return 0; 703 704 err_unregister_input_dev: 705 input_unregister_device(input); 706 input = NULL; 707 err_free_input_dev: 708 input_free_device(input); 709 err_stop: 710 return error; 711 } 712 713 static int acpi_fujitsu_remove(struct acpi_device *device) 714 { 715 struct fujitsu_t *fujitsu = acpi_driver_data(device); 716 struct input_dev *input = fujitsu->input; 717 718 input_unregister_device(input); 719 720 fujitsu->acpi_handle = NULL; 721 722 return 0; 723 } 724 725 /* Brightness notify */ 726 727 static void acpi_fujitsu_notify(struct acpi_device *device, u32 event) 728 { 729 struct input_dev *input; 730 int keycode; 731 int oldb, newb; 732 733 input = fujitsu->input; 734 735 switch (event) { 736 case ACPI_FUJITSU_NOTIFY_CODE1: 737 keycode = 0; 738 oldb = fujitsu->brightness_level; 739 get_lcd_level(); 740 newb = fujitsu->brightness_level; 741 742 vdbg_printk(FUJLAPTOP_DBG_TRACE, 743 "brightness button event [%i -> %i (%i)]\n", 744 oldb, newb, fujitsu->brightness_changed); 745 746 if (oldb < newb) { 747 if (disable_brightness_adjust != 1) { 748 if (use_alt_lcd_levels) 749 set_lcd_level_alt(newb); 750 else 751 set_lcd_level(newb); 752 } 753 keycode = KEY_BRIGHTNESSUP; 754 } else if (oldb > newb) { 755 if (disable_brightness_adjust != 1) { 756 if (use_alt_lcd_levels) 757 set_lcd_level_alt(newb); 758 else 759 set_lcd_level(newb); 760 } 761 keycode = KEY_BRIGHTNESSDOWN; 762 } 763 break; 764 default: 765 keycode = KEY_UNKNOWN; 766 vdbg_printk(FUJLAPTOP_DBG_WARN, 767 "unsupported event [0x%x]\n", event); 768 break; 769 } 770 771 if (keycode != 0) { 772 input_report_key(input, keycode, 1); 773 input_sync(input); 774 input_report_key(input, keycode, 0); 775 input_sync(input); 776 } 777 } 778 779 /* ACPI device for hotkey handling */ 780 781 static int acpi_fujitsu_hotkey_add(struct acpi_device *device) 782 { 783 int result = 0; 784 int state = 0; 785 struct input_dev *input; 786 int error; 787 int i; 788 789 if (!device) 790 return -EINVAL; 791 792 fujitsu_hotkey->acpi_handle = device->handle; 793 sprintf(acpi_device_name(device), "%s", 794 ACPI_FUJITSU_HOTKEY_DEVICE_NAME); 795 sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS); 796 device->driver_data = fujitsu_hotkey; 797 798 /* kfifo */ 799 spin_lock_init(&fujitsu_hotkey->fifo_lock); 800 error = kfifo_alloc(&fujitsu_hotkey->fifo, RINGBUFFERSIZE * sizeof(int), 801 GFP_KERNEL); 802 if (error) { 803 pr_err("kfifo_alloc failed\n"); 804 goto err_stop; 805 } 806 807 fujitsu_hotkey->input = input = input_allocate_device(); 808 if (!input) { 809 error = -ENOMEM; 810 goto err_free_fifo; 811 } 812 813 snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys), 814 "%s/video/input0", acpi_device_hid(device)); 815 816 input->name = acpi_device_name(device); 817 input->phys = fujitsu_hotkey->phys; 818 input->id.bustype = BUS_HOST; 819 input->id.product = 0x06; 820 input->dev.parent = &device->dev; 821 822 set_bit(EV_KEY, input->evbit); 823 set_bit(fujitsu->keycode1, input->keybit); 824 set_bit(fujitsu->keycode2, input->keybit); 825 set_bit(fujitsu->keycode3, input->keybit); 826 set_bit(fujitsu->keycode4, input->keybit); 827 set_bit(KEY_UNKNOWN, input->keybit); 828 829 error = input_register_device(input); 830 if (error) 831 goto err_free_input_dev; 832 833 error = acpi_bus_update_power(fujitsu_hotkey->acpi_handle, &state); 834 if (error) { 835 pr_err("Error reading power state\n"); 836 goto err_unregister_input_dev; 837 } 838 839 pr_info("ACPI: %s [%s] (%s)\n", 840 acpi_device_name(device), acpi_device_bid(device), 841 !device->power.state ? "on" : "off"); 842 843 fujitsu_hotkey->dev = device; 844 845 if (acpi_has_method(device->handle, METHOD_NAME__INI)) { 846 vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n"); 847 if (ACPI_FAILURE 848 (acpi_evaluate_object 849 (device->handle, METHOD_NAME__INI, NULL, NULL))) 850 pr_err("_INI Method failed\n"); 851 } 852 853 i = 0; 854 while (call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0) != 0 855 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) 856 ; /* No action, result is discarded */ 857 vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i); 858 859 fujitsu_hotkey->rfkill_supported = 860 call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0); 861 862 /* Make sure our bitmask of supported functions is cleared if the 863 RFKILL function block is not implemented, like on the S7020. */ 864 if (fujitsu_hotkey->rfkill_supported == UNSUPPORTED_CMD) 865 fujitsu_hotkey->rfkill_supported = 0; 866 867 if (fujitsu_hotkey->rfkill_supported) 868 fujitsu_hotkey->rfkill_state = 869 call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); 870 871 /* Suspect this is a keymap of the application panel, print it */ 872 pr_info("BTNI: [0x%x]\n", call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0)); 873 874 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) 875 if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) { 876 result = led_classdev_register(&fujitsu->pf_device->dev, 877 &logolamp_led); 878 if (result == 0) { 879 fujitsu_hotkey->logolamp_registered = 1; 880 } else { 881 pr_err("Could not register LED handler for logo lamp, error %i\n", 882 result); 883 } 884 } 885 886 if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) && 887 (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) { 888 result = led_classdev_register(&fujitsu->pf_device->dev, 889 &kblamps_led); 890 if (result == 0) { 891 fujitsu_hotkey->kblamps_registered = 1; 892 } else { 893 pr_err("Could not register LED handler for keyboard lamps, error %i\n", 894 result); 895 } 896 } 897 #endif 898 899 return result; 900 901 err_unregister_input_dev: 902 input_unregister_device(input); 903 input = NULL; 904 err_free_input_dev: 905 input_free_device(input); 906 err_free_fifo: 907 kfifo_free(&fujitsu_hotkey->fifo); 908 err_stop: 909 return error; 910 } 911 912 static int acpi_fujitsu_hotkey_remove(struct acpi_device *device) 913 { 914 struct fujitsu_hotkey_t *fujitsu_hotkey = acpi_driver_data(device); 915 struct input_dev *input = fujitsu_hotkey->input; 916 917 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) 918 if (fujitsu_hotkey->logolamp_registered) 919 led_classdev_unregister(&logolamp_led); 920 921 if (fujitsu_hotkey->kblamps_registered) 922 led_classdev_unregister(&kblamps_led); 923 #endif 924 925 input_unregister_device(input); 926 927 kfifo_free(&fujitsu_hotkey->fifo); 928 929 fujitsu_hotkey->acpi_handle = NULL; 930 931 return 0; 932 } 933 934 static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event) 935 { 936 struct input_dev *input; 937 int keycode, keycode_r; 938 unsigned int irb = 1; 939 int i, status; 940 941 input = fujitsu_hotkey->input; 942 943 if (fujitsu_hotkey->rfkill_supported) 944 fujitsu_hotkey->rfkill_state = 945 call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); 946 947 switch (event) { 948 case ACPI_FUJITSU_NOTIFY_CODE1: 949 i = 0; 950 while ((irb = 951 call_fext_func(FUNC_BUTTONS, 0x1, 0x0, 0x0)) != 0 952 && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) { 953 switch (irb & 0x4ff) { 954 case KEY1_CODE: 955 keycode = fujitsu->keycode1; 956 break; 957 case KEY2_CODE: 958 keycode = fujitsu->keycode2; 959 break; 960 case KEY3_CODE: 961 keycode = fujitsu->keycode3; 962 break; 963 case KEY4_CODE: 964 keycode = fujitsu->keycode4; 965 break; 966 case 0: 967 keycode = 0; 968 break; 969 default: 970 vdbg_printk(FUJLAPTOP_DBG_WARN, 971 "Unknown GIRB result [%x]\n", irb); 972 keycode = -1; 973 break; 974 } 975 if (keycode > 0) { 976 vdbg_printk(FUJLAPTOP_DBG_TRACE, 977 "Push keycode into ringbuffer [%d]\n", 978 keycode); 979 status = kfifo_in_locked(&fujitsu_hotkey->fifo, 980 (unsigned char *)&keycode, 981 sizeof(keycode), 982 &fujitsu_hotkey->fifo_lock); 983 if (status != sizeof(keycode)) { 984 vdbg_printk(FUJLAPTOP_DBG_WARN, 985 "Could not push keycode [0x%x]\n", 986 keycode); 987 } else { 988 input_report_key(input, keycode, 1); 989 input_sync(input); 990 } 991 } else if (keycode == 0) { 992 while ((status = 993 kfifo_out_locked( 994 &fujitsu_hotkey->fifo, 995 (unsigned char *) &keycode_r, 996 sizeof(keycode_r), 997 &fujitsu_hotkey->fifo_lock)) 998 == sizeof(keycode_r)) { 999 input_report_key(input, keycode_r, 0); 1000 input_sync(input); 1001 vdbg_printk(FUJLAPTOP_DBG_TRACE, 1002 "Pop keycode from ringbuffer [%d]\n", 1003 keycode_r); 1004 } 1005 } 1006 } 1007 1008 break; 1009 default: 1010 keycode = KEY_UNKNOWN; 1011 vdbg_printk(FUJLAPTOP_DBG_WARN, 1012 "Unsupported event [0x%x]\n", event); 1013 input_report_key(input, keycode, 1); 1014 input_sync(input); 1015 input_report_key(input, keycode, 0); 1016 input_sync(input); 1017 break; 1018 } 1019 } 1020 1021 /* Initialization */ 1022 1023 static const struct acpi_device_id fujitsu_device_ids[] = { 1024 {ACPI_FUJITSU_HID, 0}, 1025 {"", 0}, 1026 }; 1027 1028 static struct acpi_driver acpi_fujitsu_driver = { 1029 .name = ACPI_FUJITSU_DRIVER_NAME, 1030 .class = ACPI_FUJITSU_CLASS, 1031 .ids = fujitsu_device_ids, 1032 .ops = { 1033 .add = acpi_fujitsu_add, 1034 .remove = acpi_fujitsu_remove, 1035 .notify = acpi_fujitsu_notify, 1036 }, 1037 }; 1038 1039 static const struct acpi_device_id fujitsu_hotkey_device_ids[] = { 1040 {ACPI_FUJITSU_HOTKEY_HID, 0}, 1041 {"", 0}, 1042 }; 1043 1044 static struct acpi_driver acpi_fujitsu_hotkey_driver = { 1045 .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME, 1046 .class = ACPI_FUJITSU_CLASS, 1047 .ids = fujitsu_hotkey_device_ids, 1048 .ops = { 1049 .add = acpi_fujitsu_hotkey_add, 1050 .remove = acpi_fujitsu_hotkey_remove, 1051 .notify = acpi_fujitsu_hotkey_notify, 1052 }, 1053 }; 1054 1055 static int __init fujitsu_init(void) 1056 { 1057 int ret, result, max_brightness; 1058 1059 if (acpi_disabled) 1060 return -ENODEV; 1061 1062 fujitsu = kzalloc(sizeof(struct fujitsu_t), GFP_KERNEL); 1063 if (!fujitsu) 1064 return -ENOMEM; 1065 fujitsu->keycode1 = KEY_PROG1; 1066 fujitsu->keycode2 = KEY_PROG2; 1067 fujitsu->keycode3 = KEY_PROG3; 1068 fujitsu->keycode4 = KEY_PROG4; 1069 dmi_check_system(fujitsu_dmi_table); 1070 1071 result = acpi_bus_register_driver(&acpi_fujitsu_driver); 1072 if (result < 0) { 1073 ret = -ENODEV; 1074 goto fail_acpi; 1075 } 1076 1077 /* Register platform stuff */ 1078 1079 fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1); 1080 if (!fujitsu->pf_device) { 1081 ret = -ENOMEM; 1082 goto fail_platform_driver; 1083 } 1084 1085 ret = platform_device_add(fujitsu->pf_device); 1086 if (ret) 1087 goto fail_platform_device1; 1088 1089 ret = 1090 sysfs_create_group(&fujitsu->pf_device->dev.kobj, 1091 &fujitsupf_attribute_group); 1092 if (ret) 1093 goto fail_platform_device2; 1094 1095 /* Register backlight stuff */ 1096 1097 if (!acpi_video_backlight_support()) { 1098 struct backlight_properties props; 1099 1100 memset(&props, 0, sizeof(struct backlight_properties)); 1101 max_brightness = fujitsu->max_brightness; 1102 props.type = BACKLIGHT_PLATFORM; 1103 props.max_brightness = max_brightness - 1; 1104 fujitsu->bl_device = backlight_device_register("fujitsu-laptop", 1105 NULL, NULL, 1106 &fujitsubl_ops, 1107 &props); 1108 if (IS_ERR(fujitsu->bl_device)) { 1109 ret = PTR_ERR(fujitsu->bl_device); 1110 fujitsu->bl_device = NULL; 1111 goto fail_sysfs_group; 1112 } 1113 fujitsu->bl_device->props.brightness = fujitsu->brightness_level; 1114 } 1115 1116 ret = platform_driver_register(&fujitsupf_driver); 1117 if (ret) 1118 goto fail_backlight; 1119 1120 /* Register hotkey driver */ 1121 1122 fujitsu_hotkey = kzalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL); 1123 if (!fujitsu_hotkey) { 1124 ret = -ENOMEM; 1125 goto fail_hotkey; 1126 } 1127 1128 result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver); 1129 if (result < 0) { 1130 ret = -ENODEV; 1131 goto fail_hotkey1; 1132 } 1133 1134 /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */ 1135 1136 if (!acpi_video_backlight_support()) { 1137 if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3) 1138 fujitsu->bl_device->props.power = 4; 1139 else 1140 fujitsu->bl_device->props.power = 0; 1141 } 1142 1143 pr_info("driver " FUJITSU_DRIVER_VERSION " successfully loaded\n"); 1144 1145 return 0; 1146 1147 fail_hotkey1: 1148 kfree(fujitsu_hotkey); 1149 fail_hotkey: 1150 platform_driver_unregister(&fujitsupf_driver); 1151 fail_backlight: 1152 if (fujitsu->bl_device) 1153 backlight_device_unregister(fujitsu->bl_device); 1154 fail_sysfs_group: 1155 sysfs_remove_group(&fujitsu->pf_device->dev.kobj, 1156 &fujitsupf_attribute_group); 1157 fail_platform_device2: 1158 platform_device_del(fujitsu->pf_device); 1159 fail_platform_device1: 1160 platform_device_put(fujitsu->pf_device); 1161 fail_platform_driver: 1162 acpi_bus_unregister_driver(&acpi_fujitsu_driver); 1163 fail_acpi: 1164 kfree(fujitsu); 1165 1166 return ret; 1167 } 1168 1169 static void __exit fujitsu_cleanup(void) 1170 { 1171 acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver); 1172 1173 kfree(fujitsu_hotkey); 1174 1175 platform_driver_unregister(&fujitsupf_driver); 1176 1177 if (fujitsu->bl_device) 1178 backlight_device_unregister(fujitsu->bl_device); 1179 1180 sysfs_remove_group(&fujitsu->pf_device->dev.kobj, 1181 &fujitsupf_attribute_group); 1182 1183 platform_device_unregister(fujitsu->pf_device); 1184 1185 acpi_bus_unregister_driver(&acpi_fujitsu_driver); 1186 1187 kfree(fujitsu); 1188 1189 pr_info("driver unloaded\n"); 1190 } 1191 1192 module_init(fujitsu_init); 1193 module_exit(fujitsu_cleanup); 1194 1195 module_param(use_alt_lcd_levels, uint, 0644); 1196 MODULE_PARM_DESC(use_alt_lcd_levels, 1197 "Use alternative interface for lcd_levels (needed for Lifebook s6410)."); 1198 module_param(disable_brightness_adjust, uint, 0644); 1199 MODULE_PARM_DESC(disable_brightness_adjust, "Disable brightness adjustment ."); 1200 #ifdef CONFIG_FUJITSU_LAPTOP_DEBUG 1201 module_param_named(debug, dbg_level, uint, 0644); 1202 MODULE_PARM_DESC(debug, "Sets debug level bit-mask"); 1203 #endif 1204 1205 MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon"); 1206 MODULE_DESCRIPTION("Fujitsu laptop extras support"); 1207 MODULE_VERSION(FUJITSU_DRIVER_VERSION); 1208 MODULE_LICENSE("GPL"); 1209 1210 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*"); 1211 MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*"); 1212 MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*"); 1213 1214 static struct pnp_device_id pnp_ids[] __used = { 1215 {.id = "FUJ02bf"}, 1216 {.id = "FUJ02B1"}, 1217 {.id = "FUJ02E3"}, 1218 {.id = ""} 1219 }; 1220 1221 MODULE_DEVICE_TABLE(pnp, pnp_ids); 1222