1/* 2 * asus-laptop.c - Asus Laptop Support 3 * 4 * 5 * Copyright (C) 2002-2005 Julien Lerouge, 2003-2006 Karol Kozimor 6 * Copyright (C) 2006-2007 Corentin Chary 7 * Copyright (C) 2011 Wind River Systems 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 22 * 23 * 24 * The development page for this driver is located at 25 * http://sourceforge.net/projects/acpi4asus/ 26 * 27 * Credits: 28 * Pontus Fuchs - Helper functions, cleanup 29 * Johann Wiesner - Small compile fixes 30 * John Belmonte - ACPI code for Toshiba laptop was a good starting point. 31 * Eric Burghard - LED display support for W1N 32 * Josh Green - Light Sens support 33 * Thomas Tuttle - His first patch for led support was very helpful 34 * Sam Lin - GPS support 35 */ 36 37#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 38 39#include <linux/kernel.h> 40#include <linux/module.h> 41#include <linux/init.h> 42#include <linux/types.h> 43#include <linux/err.h> 44#include <linux/proc_fs.h> 45#include <linux/backlight.h> 46#include <linux/fb.h> 47#include <linux/leds.h> 48#include <linux/platform_device.h> 49#include <linux/uaccess.h> 50#include <linux/input.h> 51#include <linux/input/sparse-keymap.h> 52#include <linux/input-polldev.h> 53#include <linux/rfkill.h> 54#include <linux/slab.h> 55#include <linux/dmi.h> 56#include <linux/acpi.h> 57 58#define ASUS_LAPTOP_VERSION "0.42" 59 60#define ASUS_LAPTOP_NAME "Asus Laptop Support" 61#define ASUS_LAPTOP_CLASS "hotkey" 62#define ASUS_LAPTOP_DEVICE_NAME "Hotkey" 63#define ASUS_LAPTOP_FILE KBUILD_MODNAME 64#define ASUS_LAPTOP_PREFIX "\\_SB.ATKD." 65 66MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary"); 67MODULE_DESCRIPTION(ASUS_LAPTOP_NAME); 68MODULE_LICENSE("GPL"); 69 70/* 71 * WAPF defines the behavior of the Fn+Fx wlan key 72 * The significance of values is yet to be found, but 73 * most of the time: 74 * Bit | Bluetooth | WLAN 75 * 0 | Hardware | Hardware 76 * 1 | Hardware | Software 77 * 4 | Software | Software 78 */ 79static uint wapf = 1; 80module_param(wapf, uint, 0444); 81MODULE_PARM_DESC(wapf, "WAPF value"); 82 83static char *wled_type = "unknown"; 84static char *bled_type = "unknown"; 85 86module_param(wled_type, charp, 0444); 87MODULE_PARM_DESC(wled_type, "Set the wled type on boot " 88 "(unknown, led or rfkill). " 89 "default is unknown"); 90 91module_param(bled_type, charp, 0444); 92MODULE_PARM_DESC(bled_type, "Set the bled type on boot " 93 "(unknown, led or rfkill). " 94 "default is unknown"); 95 96static int wlan_status = 1; 97static int bluetooth_status = 1; 98static int wimax_status = -1; 99static int wwan_status = -1; 100static int als_status; 101 102module_param(wlan_status, int, 0444); 103MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot " 104 "(0 = disabled, 1 = enabled, -1 = don't do anything). " 105 "default is -1"); 106 107module_param(bluetooth_status, int, 0444); 108MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot " 109 "(0 = disabled, 1 = enabled, -1 = don't do anything). " 110 "default is -1"); 111 112module_param(wimax_status, int, 0444); 113MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot " 114 "(0 = disabled, 1 = enabled, -1 = don't do anything). " 115 "default is -1"); 116 117module_param(wwan_status, int, 0444); 118MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot " 119 "(0 = disabled, 1 = enabled, -1 = don't do anything). " 120 "default is -1"); 121 122module_param(als_status, int, 0444); 123MODULE_PARM_DESC(als_status, "Set the ALS status on boot " 124 "(0 = disabled, 1 = enabled). " 125 "default is 0"); 126 127/* 128 * Some events we use, same for all Asus 129 */ 130#define ATKD_BRNUP_MIN 0x10 131#define ATKD_BRNUP_MAX 0x1f 132#define ATKD_BRNDOWN_MIN 0x20 133#define ATKD_BRNDOWN_MAX 0x2f 134#define ATKD_BRNDOWN 0x20 135#define ATKD_BRNUP 0x2f 136#define ATKD_LCD_ON 0x33 137#define ATKD_LCD_OFF 0x34 138 139/* 140 * Known bits returned by \_SB.ATKD.HWRS 141 */ 142#define WL_HWRS 0x80 143#define BT_HWRS 0x100 144 145/* 146 * Flags for hotk status 147 * WL_ON and BT_ON are also used for wireless_status() 148 */ 149#define WL_RSTS 0x01 /* internal Wifi */ 150#define BT_RSTS 0x02 /* internal Bluetooth */ 151#define WM_RSTS 0x08 /* internal wimax */ 152#define WW_RSTS 0x20 /* internal wwan */ 153 154/* WLED and BLED type */ 155#define TYPE_UNKNOWN 0 156#define TYPE_LED 1 157#define TYPE_RFKILL 2 158 159/* LED */ 160#define METHOD_MLED "MLED" 161#define METHOD_TLED "TLED" 162#define METHOD_RLED "RLED" /* W1JC */ 163#define METHOD_PLED "PLED" /* A7J */ 164#define METHOD_GLED "GLED" /* G1, G2 (probably) */ 165 166/* LEDD */ 167#define METHOD_LEDD "SLCM" 168 169/* 170 * Bluetooth and WLAN 171 * WLED and BLED are not handled like other XLED, because in some dsdt 172 * they also control the WLAN/Bluetooth device. 173 */ 174#define METHOD_WLAN "WLED" 175#define METHOD_BLUETOOTH "BLED" 176 177/* WWAN and WIMAX */ 178#define METHOD_WWAN "GSMC" 179#define METHOD_WIMAX "WMXC" 180 181#define METHOD_WL_STATUS "RSTS" 182 183/* Brightness */ 184#define METHOD_BRIGHTNESS_SET "SPLV" 185#define METHOD_BRIGHTNESS_GET "GPLV" 186 187/* Display */ 188#define METHOD_SWITCH_DISPLAY "SDSP" 189 190#define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */ 191#define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */ 192 193/* GPS */ 194/* R2H use different handle for GPS on/off */ 195#define METHOD_GPS_ON "SDON" 196#define METHOD_GPS_OFF "SDOF" 197#define METHOD_GPS_STATUS "GPST" 198 199/* Keyboard light */ 200#define METHOD_KBD_LIGHT_SET "SLKB" 201#define METHOD_KBD_LIGHT_GET "GLKB" 202 203/* For Pegatron Lucid tablet */ 204#define DEVICE_NAME_PEGA "Lucid" 205 206#define METHOD_PEGA_ENABLE "ENPR" 207#define METHOD_PEGA_DISABLE "DAPR" 208#define PEGA_WLAN 0x00 209#define PEGA_BLUETOOTH 0x01 210#define PEGA_WWAN 0x02 211#define PEGA_ALS 0x04 212#define PEGA_ALS_POWER 0x05 213 214#define METHOD_PEGA_READ "RDLN" 215#define PEGA_READ_ALS_H 0x02 216#define PEGA_READ_ALS_L 0x03 217 218#define PEGA_ACCEL_NAME "pega_accel" 219#define PEGA_ACCEL_DESC "Pegatron Lucid Tablet Accelerometer" 220#define METHOD_XLRX "XLRX" 221#define METHOD_XLRY "XLRY" 222#define METHOD_XLRZ "XLRZ" 223#define PEGA_ACC_CLAMP 512 /* 1G accel is reported as ~256, so clamp to 2G */ 224#define PEGA_ACC_RETRIES 3 225 226/* 227 * Define a specific led structure to keep the main structure clean 228 */ 229struct asus_led { 230 int wk; 231 struct work_struct work; 232 struct led_classdev led; 233 struct asus_laptop *asus; 234 const char *method; 235}; 236 237/* 238 * Same thing for rfkill 239 */ 240struct asus_rfkill { 241 /* type of control. Maps to PEGA_* values or *_RSTS */ 242 int control_id; 243 struct rfkill *rfkill; 244 struct asus_laptop *asus; 245}; 246 247/* 248 * This is the main structure, we can use it to store anything interesting 249 * about the hotk device 250 */ 251struct asus_laptop { 252 char *name; /* laptop name */ 253 254 struct acpi_table_header *dsdt_info; 255 struct platform_device *platform_device; 256 struct acpi_device *device; /* the device we are in */ 257 struct backlight_device *backlight_device; 258 259 struct input_dev *inputdev; 260 struct key_entry *keymap; 261 struct input_polled_dev *pega_accel_poll; 262 263 struct asus_led wled; 264 struct asus_led bled; 265 struct asus_led mled; 266 struct asus_led tled; 267 struct asus_led rled; 268 struct asus_led pled; 269 struct asus_led gled; 270 struct asus_led kled; 271 struct workqueue_struct *led_workqueue; 272 273 int wled_type; 274 int bled_type; 275 int wireless_status; 276 bool have_rsts; 277 bool is_pega_lucid; 278 bool pega_acc_live; 279 int pega_acc_x; 280 int pega_acc_y; 281 int pega_acc_z; 282 283 struct asus_rfkill wlan; 284 struct asus_rfkill bluetooth; 285 struct asus_rfkill wwan; 286 struct asus_rfkill wimax; 287 struct asus_rfkill gps; 288 289 acpi_handle handle; /* the handle of the hotk device */ 290 u32 ledd_status; /* status of the LED display */ 291 u8 light_level; /* light sensor level */ 292 u8 light_switch; /* light sensor switch value */ 293 u16 event_count[128]; /* count for each event TODO make this better */ 294}; 295 296static const struct key_entry asus_keymap[] = { 297 /* Lenovo SL Specific keycodes */ 298 {KE_KEY, 0x02, { KEY_SCREENLOCK } }, 299 {KE_KEY, 0x05, { KEY_WLAN } }, 300 {KE_KEY, 0x08, { KEY_F13 } }, 301 {KE_KEY, 0x09, { KEY_PROG2 } }, /* Dock */ 302 {KE_KEY, 0x17, { KEY_ZOOM } }, 303 {KE_KEY, 0x1f, { KEY_BATTERY } }, 304 /* End of Lenovo SL Specific keycodes */ 305 {KE_KEY, ATKD_BRNDOWN, { KEY_BRIGHTNESSDOWN } }, 306 {KE_KEY, ATKD_BRNUP, { KEY_BRIGHTNESSUP } }, 307 {KE_KEY, 0x30, { KEY_VOLUMEUP } }, 308 {KE_KEY, 0x31, { KEY_VOLUMEDOWN } }, 309 {KE_KEY, 0x32, { KEY_MUTE } }, 310 {KE_KEY, 0x33, { KEY_DISPLAYTOGGLE } }, /* LCD on */ 311 {KE_KEY, 0x34, { KEY_DISPLAY_OFF } }, /* LCD off */ 312 {KE_KEY, 0x40, { KEY_PREVIOUSSONG } }, 313 {KE_KEY, 0x41, { KEY_NEXTSONG } }, 314 {KE_KEY, 0x43, { KEY_STOPCD } }, /* Stop/Eject */ 315 {KE_KEY, 0x45, { KEY_PLAYPAUSE } }, 316 {KE_KEY, 0x4c, { KEY_MEDIA } }, /* WMP Key */ 317 {KE_KEY, 0x50, { KEY_EMAIL } }, 318 {KE_KEY, 0x51, { KEY_WWW } }, 319 {KE_KEY, 0x55, { KEY_CALC } }, 320 {KE_IGNORE, 0x57, }, /* Battery mode */ 321 {KE_IGNORE, 0x58, }, /* AC mode */ 322 {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */ 323 {KE_KEY, 0x5D, { KEY_WLAN } }, /* WLAN Toggle */ 324 {KE_KEY, 0x5E, { KEY_WLAN } }, /* WLAN Enable */ 325 {KE_KEY, 0x5F, { KEY_WLAN } }, /* WLAN Disable */ 326 {KE_KEY, 0x60, { KEY_TOUCHPAD_ON } }, 327 {KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD only */ 328 {KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT only */ 329 {KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT */ 330 {KE_KEY, 0x64, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV */ 331 {KE_KEY, 0x65, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV */ 332 {KE_KEY, 0x66, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV */ 333 {KE_KEY, 0x67, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV */ 334 {KE_KEY, 0x6B, { KEY_TOUCHPAD_TOGGLE } }, /* Lock Touchpad */ 335 {KE_KEY, 0x6C, { KEY_SLEEP } }, /* Suspend */ 336 {KE_KEY, 0x6D, { KEY_SLEEP } }, /* Hibernate */ 337 {KE_IGNORE, 0x6E, }, /* Low Battery notification */ 338 {KE_KEY, 0x7D, { KEY_BLUETOOTH } }, /* Bluetooth Enable */ 339 {KE_KEY, 0x7E, { KEY_BLUETOOTH } }, /* Bluetooth Disable */ 340 {KE_KEY, 0x82, { KEY_CAMERA } }, 341 {KE_KEY, 0x88, { KEY_RFKILL } }, /* Radio Toggle Key */ 342 {KE_KEY, 0x8A, { KEY_PROG1 } }, /* Color enhancement mode */ 343 {KE_KEY, 0x8C, { KEY_SWITCHVIDEOMODE } }, /* SDSP DVI only */ 344 {KE_KEY, 0x8D, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + DVI */ 345 {KE_KEY, 0x8E, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + DVI */ 346 {KE_KEY, 0x8F, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + DVI */ 347 {KE_KEY, 0x90, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + DVI */ 348 {KE_KEY, 0x91, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + DVI */ 349 {KE_KEY, 0x92, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + DVI */ 350 {KE_KEY, 0x93, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + DVI */ 351 {KE_KEY, 0x95, { KEY_MEDIA } }, 352 {KE_KEY, 0x99, { KEY_PHONE } }, 353 {KE_KEY, 0xA0, { KEY_SWITCHVIDEOMODE } }, /* SDSP HDMI only */ 354 {KE_KEY, 0xA1, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + HDMI */ 355 {KE_KEY, 0xA2, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + HDMI */ 356 {KE_KEY, 0xA3, { KEY_SWITCHVIDEOMODE } }, /* SDSP TV + HDMI */ 357 {KE_KEY, 0xA4, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + HDMI */ 358 {KE_KEY, 0xA5, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + TV + HDMI */ 359 {KE_KEY, 0xA6, { KEY_SWITCHVIDEOMODE } }, /* SDSP CRT + TV + HDMI */ 360 {KE_KEY, 0xA7, { KEY_SWITCHVIDEOMODE } }, /* SDSP LCD + CRT + TV + HDMI */ 361 {KE_KEY, 0xB5, { KEY_CALC } }, 362 {KE_KEY, 0xC4, { KEY_KBDILLUMUP } }, 363 {KE_KEY, 0xC5, { KEY_KBDILLUMDOWN } }, 364 {KE_END, 0}, 365}; 366 367 368/* 369 * This function evaluates an ACPI method, given an int as parameter, the 370 * method is searched within the scope of the handle, can be NULL. The output 371 * of the method is written is output, which can also be NULL 372 * 373 * returns 0 if write is successful, -1 else. 374 */ 375static int write_acpi_int_ret(acpi_handle handle, const char *method, int val, 376 struct acpi_buffer *output) 377{ 378 struct acpi_object_list params; /* list of input parameters (an int) */ 379 union acpi_object in_obj; /* the only param we use */ 380 acpi_status status; 381 382 if (!handle) 383 return -1; 384 385 params.count = 1; 386 params.pointer = &in_obj; 387 in_obj.type = ACPI_TYPE_INTEGER; 388 in_obj.integer.value = val; 389 390 status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); 391 if (status == AE_OK) 392 return 0; 393 else 394 return -1; 395} 396 397static int write_acpi_int(acpi_handle handle, const char *method, int val) 398{ 399 return write_acpi_int_ret(handle, method, val, NULL); 400} 401 402static int acpi_check_handle(acpi_handle handle, const char *method, 403 acpi_handle *ret) 404{ 405 acpi_status status; 406 407 if (method == NULL) 408 return -ENODEV; 409 410 if (ret) 411 status = acpi_get_handle(handle, (char *)method, 412 ret); 413 else { 414 acpi_handle dummy; 415 416 status = acpi_get_handle(handle, (char *)method, 417 &dummy); 418 } 419 420 if (status != AE_OK) { 421 if (ret) 422 pr_warn("Error finding %s\n", method); 423 return -ENODEV; 424 } 425 return 0; 426} 427 428static bool asus_check_pega_lucid(struct asus_laptop *asus) 429{ 430 return !strcmp(asus->name, DEVICE_NAME_PEGA) && 431 !acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) && 432 !acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) && 433 !acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL); 434} 435 436static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable) 437{ 438 char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE; 439 return write_acpi_int(asus->handle, method, unit); 440} 441 442static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method) 443{ 444 int i, delta; 445 unsigned long long val; 446 for (i = 0; i < PEGA_ACC_RETRIES; i++) { 447 acpi_evaluate_integer(asus->handle, method, NULL, &val); 448 449 /* The output is noisy. From reading the ASL 450 * dissassembly, timeout errors are returned with 1's 451 * in the high word, and the lack of locking around 452 * thei hi/lo byte reads means that a transition 453 * between (for example) -1 and 0 could be read as 454 * 0xff00 or 0x00ff. */ 455 delta = abs(curr - (short)val); 456 if (delta < 128 && !(val & ~0xffff)) 457 break; 458 } 459 return clamp_val((short)val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP); 460} 461 462static void pega_accel_poll(struct input_polled_dev *ipd) 463{ 464 struct device *parent = ipd->input->dev.parent; 465 struct asus_laptop *asus = dev_get_drvdata(parent); 466 467 /* In some cases, the very first call to poll causes a 468 * recursive fault under the polldev worker. This is 469 * apparently related to very early userspace access to the 470 * device, and perhaps a firmware bug. Fake the first report. */ 471 if (!asus->pega_acc_live) { 472 asus->pega_acc_live = true; 473 input_report_abs(ipd->input, ABS_X, 0); 474 input_report_abs(ipd->input, ABS_Y, 0); 475 input_report_abs(ipd->input, ABS_Z, 0); 476 input_sync(ipd->input); 477 return; 478 } 479 480 asus->pega_acc_x = pega_acc_axis(asus, asus->pega_acc_x, METHOD_XLRX); 481 asus->pega_acc_y = pega_acc_axis(asus, asus->pega_acc_y, METHOD_XLRY); 482 asus->pega_acc_z = pega_acc_axis(asus, asus->pega_acc_z, METHOD_XLRZ); 483 484 /* Note transform, convert to "right/up/out" in the native 485 * landscape orientation (i.e. the vector is the direction of 486 * "real up" in the device's cartiesian coordinates). */ 487 input_report_abs(ipd->input, ABS_X, -asus->pega_acc_x); 488 input_report_abs(ipd->input, ABS_Y, -asus->pega_acc_y); 489 input_report_abs(ipd->input, ABS_Z, asus->pega_acc_z); 490 input_sync(ipd->input); 491} 492 493static void pega_accel_exit(struct asus_laptop *asus) 494{ 495 if (asus->pega_accel_poll) { 496 input_unregister_polled_device(asus->pega_accel_poll); 497 input_free_polled_device(asus->pega_accel_poll); 498 } 499 asus->pega_accel_poll = NULL; 500} 501 502static int pega_accel_init(struct asus_laptop *asus) 503{ 504 int err; 505 struct input_polled_dev *ipd; 506 507 if (!asus->is_pega_lucid) 508 return -ENODEV; 509 510 if (acpi_check_handle(asus->handle, METHOD_XLRX, NULL) || 511 acpi_check_handle(asus->handle, METHOD_XLRY, NULL) || 512 acpi_check_handle(asus->handle, METHOD_XLRZ, NULL)) 513 return -ENODEV; 514 515 ipd = input_allocate_polled_device(); 516 if (!ipd) 517 return -ENOMEM; 518 519 ipd->poll = pega_accel_poll; 520 ipd->poll_interval = 125; 521 ipd->poll_interval_min = 50; 522 ipd->poll_interval_max = 2000; 523 524 ipd->input->name = PEGA_ACCEL_DESC; 525 ipd->input->phys = PEGA_ACCEL_NAME "/input0"; 526 ipd->input->dev.parent = &asus->platform_device->dev; 527 ipd->input->id.bustype = BUS_HOST; 528 529 set_bit(EV_ABS, ipd->input->evbit); 530 input_set_abs_params(ipd->input, ABS_X, 531 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0); 532 input_set_abs_params(ipd->input, ABS_Y, 533 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0); 534 input_set_abs_params(ipd->input, ABS_Z, 535 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0); 536 537 err = input_register_polled_device(ipd); 538 if (err) 539 goto exit; 540 541 asus->pega_accel_poll = ipd; 542 return 0; 543 544exit: 545 input_free_polled_device(ipd); 546 return err; 547} 548 549/* Generic LED function */ 550static int asus_led_set(struct asus_laptop *asus, const char *method, 551 int value) 552{ 553 if (!strcmp(method, METHOD_MLED)) 554 value = !value; 555 else if (!strcmp(method, METHOD_GLED)) 556 value = !value + 1; 557 else 558 value = !!value; 559 560 return write_acpi_int(asus->handle, method, value); 561} 562 563/* 564 * LEDs 565 */ 566/* /sys/class/led handlers */ 567static void asus_led_cdev_set(struct led_classdev *led_cdev, 568 enum led_brightness value) 569{ 570 struct asus_led *led = container_of(led_cdev, struct asus_led, led); 571 struct asus_laptop *asus = led->asus; 572 573 led->wk = !!value; 574 queue_work(asus->led_workqueue, &led->work); 575} 576 577static void asus_led_cdev_update(struct work_struct *work) 578{ 579 struct asus_led *led = container_of(work, struct asus_led, work); 580 struct asus_laptop *asus = led->asus; 581 582 asus_led_set(asus, led->method, led->wk); 583} 584 585static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev) 586{ 587 return led_cdev->brightness; 588} 589 590/* 591 * Keyboard backlight (also a LED) 592 */ 593static int asus_kled_lvl(struct asus_laptop *asus) 594{ 595 unsigned long long kblv; 596 struct acpi_object_list params; 597 union acpi_object in_obj; 598 acpi_status rv; 599 600 params.count = 1; 601 params.pointer = &in_obj; 602 in_obj.type = ACPI_TYPE_INTEGER; 603 in_obj.integer.value = 2; 604 605 rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET, 606 ¶ms, &kblv); 607 if (ACPI_FAILURE(rv)) { 608 pr_warn("Error reading kled level\n"); 609 return -ENODEV; 610 } 611 return kblv; 612} 613 614static int asus_kled_set(struct asus_laptop *asus, int kblv) 615{ 616 if (kblv > 0) 617 kblv = (1 << 7) | (kblv & 0x7F); 618 else 619 kblv = 0; 620 621 if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) { 622 pr_warn("Keyboard LED display write failed\n"); 623 return -EINVAL; 624 } 625 return 0; 626} 627 628static void asus_kled_cdev_set(struct led_classdev *led_cdev, 629 enum led_brightness value) 630{ 631 struct asus_led *led = container_of(led_cdev, struct asus_led, led); 632 struct asus_laptop *asus = led->asus; 633 634 led->wk = value; 635 queue_work(asus->led_workqueue, &led->work); 636} 637 638static void asus_kled_cdev_update(struct work_struct *work) 639{ 640 struct asus_led *led = container_of(work, struct asus_led, work); 641 struct asus_laptop *asus = led->asus; 642 643 asus_kled_set(asus, led->wk); 644} 645 646static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev) 647{ 648 struct asus_led *led = container_of(led_cdev, struct asus_led, led); 649 struct asus_laptop *asus = led->asus; 650 651 return asus_kled_lvl(asus); 652} 653 654static void asus_led_exit(struct asus_laptop *asus) 655{ 656 if (!IS_ERR_OR_NULL(asus->wled.led.dev)) 657 led_classdev_unregister(&asus->wled.led); 658 if (!IS_ERR_OR_NULL(asus->bled.led.dev)) 659 led_classdev_unregister(&asus->bled.led); 660 if (!IS_ERR_OR_NULL(asus->mled.led.dev)) 661 led_classdev_unregister(&asus->mled.led); 662 if (!IS_ERR_OR_NULL(asus->tled.led.dev)) 663 led_classdev_unregister(&asus->tled.led); 664 if (!IS_ERR_OR_NULL(asus->pled.led.dev)) 665 led_classdev_unregister(&asus->pled.led); 666 if (!IS_ERR_OR_NULL(asus->rled.led.dev)) 667 led_classdev_unregister(&asus->rled.led); 668 if (!IS_ERR_OR_NULL(asus->gled.led.dev)) 669 led_classdev_unregister(&asus->gled.led); 670 if (!IS_ERR_OR_NULL(asus->kled.led.dev)) 671 led_classdev_unregister(&asus->kled.led); 672 if (asus->led_workqueue) { 673 destroy_workqueue(asus->led_workqueue); 674 asus->led_workqueue = NULL; 675 } 676} 677 678/* Ugly macro, need to fix that later */ 679static int asus_led_register(struct asus_laptop *asus, 680 struct asus_led *led, 681 const char *name, const char *method) 682{ 683 struct led_classdev *led_cdev = &led->led; 684 685 if (!method || acpi_check_handle(asus->handle, method, NULL)) 686 return 0; /* Led not present */ 687 688 led->asus = asus; 689 led->method = method; 690 691 INIT_WORK(&led->work, asus_led_cdev_update); 692 led_cdev->name = name; 693 led_cdev->brightness_set = asus_led_cdev_set; 694 led_cdev->brightness_get = asus_led_cdev_get; 695 led_cdev->max_brightness = 1; 696 return led_classdev_register(&asus->platform_device->dev, led_cdev); 697} 698 699static int asus_led_init(struct asus_laptop *asus) 700{ 701 int r = 0; 702 703 /* 704 * The Pegatron Lucid has no physical leds, but all methods are 705 * available in the DSDT... 706 */ 707 if (asus->is_pega_lucid) 708 return 0; 709 710 /* 711 * Functions that actually update the LED's are called from a 712 * workqueue. By doing this as separate work rather than when the LED 713 * subsystem asks, we avoid messing with the Asus ACPI stuff during a 714 * potentially bad time, such as a timer interrupt. 715 */ 716 asus->led_workqueue = create_singlethread_workqueue("led_workqueue"); 717 if (!asus->led_workqueue) 718 return -ENOMEM; 719 720 if (asus->wled_type == TYPE_LED) 721 r = asus_led_register(asus, &asus->wled, "asus::wlan", 722 METHOD_WLAN); 723 if (r) 724 goto error; 725 if (asus->bled_type == TYPE_LED) 726 r = asus_led_register(asus, &asus->bled, "asus::bluetooth", 727 METHOD_BLUETOOTH); 728 if (r) 729 goto error; 730 r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED); 731 if (r) 732 goto error; 733 r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED); 734 if (r) 735 goto error; 736 r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED); 737 if (r) 738 goto error; 739 r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED); 740 if (r) 741 goto error; 742 r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED); 743 if (r) 744 goto error; 745 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) && 746 !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) { 747 struct asus_led *led = &asus->kled; 748 struct led_classdev *cdev = &led->led; 749 750 led->asus = asus; 751 752 INIT_WORK(&led->work, asus_kled_cdev_update); 753 cdev->name = "asus::kbd_backlight"; 754 cdev->brightness_set = asus_kled_cdev_set; 755 cdev->brightness_get = asus_kled_cdev_get; 756 cdev->max_brightness = 3; 757 r = led_classdev_register(&asus->platform_device->dev, cdev); 758 } 759error: 760 if (r) 761 asus_led_exit(asus); 762 return r; 763} 764 765/* 766 * Backlight device 767 */ 768static int asus_read_brightness(struct backlight_device *bd) 769{ 770 struct asus_laptop *asus = bl_get_data(bd); 771 unsigned long long value; 772 acpi_status rv = AE_OK; 773 774 rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET, 775 NULL, &value); 776 if (ACPI_FAILURE(rv)) 777 pr_warn("Error reading brightness\n"); 778 779 return value; 780} 781 782static int asus_set_brightness(struct backlight_device *bd, int value) 783{ 784 struct asus_laptop *asus = bl_get_data(bd); 785 786 if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) { 787 pr_warn("Error changing brightness\n"); 788 return -EIO; 789 } 790 return 0; 791} 792 793static int update_bl_status(struct backlight_device *bd) 794{ 795 int value = bd->props.brightness; 796 797 return asus_set_brightness(bd, value); 798} 799 800static const struct backlight_ops asusbl_ops = { 801 .get_brightness = asus_read_brightness, 802 .update_status = update_bl_status, 803}; 804 805static int asus_backlight_notify(struct asus_laptop *asus) 806{ 807 struct backlight_device *bd = asus->backlight_device; 808 int old = bd->props.brightness; 809 810 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); 811 812 return old; 813} 814 815static int asus_backlight_init(struct asus_laptop *asus) 816{ 817 struct backlight_device *bd; 818 struct backlight_properties props; 819 820 if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) || 821 acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL)) 822 return 0; 823 824 memset(&props, 0, sizeof(struct backlight_properties)); 825 props.max_brightness = 15; 826 props.type = BACKLIGHT_PLATFORM; 827 828 bd = backlight_device_register(ASUS_LAPTOP_FILE, 829 &asus->platform_device->dev, asus, 830 &asusbl_ops, &props); 831 if (IS_ERR(bd)) { 832 pr_err("Could not register asus backlight device\n"); 833 asus->backlight_device = NULL; 834 return PTR_ERR(bd); 835 } 836 837 asus->backlight_device = bd; 838 bd->props.brightness = asus_read_brightness(bd); 839 bd->props.power = FB_BLANK_UNBLANK; 840 backlight_update_status(bd); 841 return 0; 842} 843 844static void asus_backlight_exit(struct asus_laptop *asus) 845{ 846 if (asus->backlight_device) 847 backlight_device_unregister(asus->backlight_device); 848 asus->backlight_device = NULL; 849} 850 851/* 852 * Platform device handlers 853 */ 854 855/* 856 * We write our info in page, we begin at offset off and cannot write more 857 * than count bytes. We set eof to 1 if we handle those 2 values. We return the 858 * number of bytes written in page 859 */ 860static ssize_t show_infos(struct device *dev, 861 struct device_attribute *attr, char *page) 862{ 863 struct asus_laptop *asus = dev_get_drvdata(dev); 864 int len = 0; 865 unsigned long long temp; 866 char buf[16]; /* enough for all info */ 867 acpi_status rv = AE_OK; 868 869 /* 870 * We use the easy way, we don't care of off and count, 871 * so we don't set eof to 1 872 */ 873 874 len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n"); 875 len += sprintf(page + len, "Model reference : %s\n", asus->name); 876 /* 877 * The SFUN method probably allows the original driver to get the list 878 * of features supported by a given model. For now, 0x0100 or 0x0800 879 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. 880 * The significance of others is yet to be found. 881 */ 882 rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp); 883 if (!ACPI_FAILURE(rv)) 884 len += sprintf(page + len, "SFUN value : %#x\n", 885 (uint) temp); 886 /* 887 * The HWRS method return informations about the hardware. 888 * 0x80 bit is for WLAN, 0x100 for Bluetooth. 889 * 0x40 for WWAN, 0x10 for WIMAX. 890 * The significance of others is yet to be found. 891 * We don't currently use this for device detection, and it 892 * takes several seconds to run on some systems. 893 */ 894 rv = acpi_evaluate_integer(asus->handle, "HWRS", NULL, &temp); 895 if (!ACPI_FAILURE(rv)) 896 len += sprintf(page + len, "HWRS value : %#x\n", 897 (uint) temp); 898 /* 899 * Another value for userspace: the ASYM method returns 0x02 for 900 * battery low and 0x04 for battery critical, its readings tend to be 901 * more accurate than those provided by _BST. 902 * Note: since not all the laptops provide this method, errors are 903 * silently ignored. 904 */ 905 rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp); 906 if (!ACPI_FAILURE(rv)) 907 len += sprintf(page + len, "ASYM value : %#x\n", 908 (uint) temp); 909 if (asus->dsdt_info) { 910 snprintf(buf, 16, "%d", asus->dsdt_info->length); 911 len += sprintf(page + len, "DSDT length : %s\n", buf); 912 snprintf(buf, 16, "%d", asus->dsdt_info->checksum); 913 len += sprintf(page + len, "DSDT checksum : %s\n", buf); 914 snprintf(buf, 16, "%d", asus->dsdt_info->revision); 915 len += sprintf(page + len, "DSDT revision : %s\n", buf); 916 snprintf(buf, 7, "%s", asus->dsdt_info->oem_id); 917 len += sprintf(page + len, "OEM id : %s\n", buf); 918 snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id); 919 len += sprintf(page + len, "OEM table id : %s\n", buf); 920 snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision); 921 len += sprintf(page + len, "OEM revision : 0x%s\n", buf); 922 snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id); 923 len += sprintf(page + len, "ASL comp vendor id : %s\n", buf); 924 snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision); 925 len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf); 926 } 927 928 return len; 929} 930 931static int parse_arg(const char *buf, unsigned long count, int *val) 932{ 933 if (!count) 934 return 0; 935 if (count > 31) 936 return -EINVAL; 937 if (sscanf(buf, "%i", val) != 1) 938 return -EINVAL; 939 return count; 940} 941 942static ssize_t sysfs_acpi_set(struct asus_laptop *asus, 943 const char *buf, size_t count, 944 const char *method) 945{ 946 int rv, value; 947 int out = 0; 948 949 rv = parse_arg(buf, count, &value); 950 if (rv > 0) 951 out = value ? 1 : 0; 952 953 if (write_acpi_int(asus->handle, method, value)) 954 return -ENODEV; 955 return rv; 956} 957 958/* 959 * LEDD display 960 */ 961static ssize_t show_ledd(struct device *dev, 962 struct device_attribute *attr, char *buf) 963{ 964 struct asus_laptop *asus = dev_get_drvdata(dev); 965 966 return sprintf(buf, "0x%08x\n", asus->ledd_status); 967} 968 969static ssize_t store_ledd(struct device *dev, struct device_attribute *attr, 970 const char *buf, size_t count) 971{ 972 struct asus_laptop *asus = dev_get_drvdata(dev); 973 int rv, value; 974 975 rv = parse_arg(buf, count, &value); 976 if (rv > 0) { 977 if (write_acpi_int(asus->handle, METHOD_LEDD, value)) { 978 pr_warn("LED display write failed\n"); 979 return -ENODEV; 980 } 981 asus->ledd_status = (u32) value; 982 } 983 return rv; 984} 985 986/* 987 * Wireless 988 */ 989static int asus_wireless_status(struct asus_laptop *asus, int mask) 990{ 991 unsigned long long status; 992 acpi_status rv = AE_OK; 993 994 if (!asus->have_rsts) 995 return (asus->wireless_status & mask) ? 1 : 0; 996 997 rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS, 998 NULL, &status); 999 if (ACPI_FAILURE(rv)) { 1000 pr_warn("Error reading Wireless status\n"); 1001 return -EINVAL; 1002 } 1003 return !!(status & mask); 1004} 1005 1006/* 1007 * WLAN 1008 */ 1009static int asus_wlan_set(struct asus_laptop *asus, int status) 1010{ 1011 if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) { 1012 pr_warn("Error setting wlan status to %d\n", status); 1013 return -EIO; 1014 } 1015 return 0; 1016} 1017 1018static ssize_t show_wlan(struct device *dev, 1019 struct device_attribute *attr, char *buf) 1020{ 1021 struct asus_laptop *asus = dev_get_drvdata(dev); 1022 1023 return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS)); 1024} 1025 1026static ssize_t store_wlan(struct device *dev, struct device_attribute *attr, 1027 const char *buf, size_t count) 1028{ 1029 struct asus_laptop *asus = dev_get_drvdata(dev); 1030 1031 return sysfs_acpi_set(asus, buf, count, METHOD_WLAN); 1032} 1033 1034/*e 1035 * Bluetooth 1036 */ 1037static int asus_bluetooth_set(struct asus_laptop *asus, int status) 1038{ 1039 if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) { 1040 pr_warn("Error setting bluetooth status to %d\n", status); 1041 return -EIO; 1042 } 1043 return 0; 1044} 1045 1046static ssize_t show_bluetooth(struct device *dev, 1047 struct device_attribute *attr, char *buf) 1048{ 1049 struct asus_laptop *asus = dev_get_drvdata(dev); 1050 1051 return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS)); 1052} 1053 1054static ssize_t store_bluetooth(struct device *dev, 1055 struct device_attribute *attr, const char *buf, 1056 size_t count) 1057{ 1058 struct asus_laptop *asus = dev_get_drvdata(dev); 1059 1060 return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH); 1061} 1062 1063/* 1064 * Wimax 1065 */ 1066static int asus_wimax_set(struct asus_laptop *asus, int status) 1067{ 1068 if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) { 1069 pr_warn("Error setting wimax status to %d\n", status); 1070 return -EIO; 1071 } 1072 return 0; 1073} 1074 1075static ssize_t show_wimax(struct device *dev, 1076 struct device_attribute *attr, char *buf) 1077{ 1078 struct asus_laptop *asus = dev_get_drvdata(dev); 1079 1080 return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS)); 1081} 1082 1083static ssize_t store_wimax(struct device *dev, 1084 struct device_attribute *attr, const char *buf, 1085 size_t count) 1086{ 1087 struct asus_laptop *asus = dev_get_drvdata(dev); 1088 1089 return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX); 1090} 1091 1092/* 1093 * Wwan 1094 */ 1095static int asus_wwan_set(struct asus_laptop *asus, int status) 1096{ 1097 if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) { 1098 pr_warn("Error setting wwan status to %d\n", status); 1099 return -EIO; 1100 } 1101 return 0; 1102} 1103 1104static ssize_t show_wwan(struct device *dev, 1105 struct device_attribute *attr, char *buf) 1106{ 1107 struct asus_laptop *asus = dev_get_drvdata(dev); 1108 1109 return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS)); 1110} 1111 1112static ssize_t store_wwan(struct device *dev, 1113 struct device_attribute *attr, const char *buf, 1114 size_t count) 1115{ 1116 struct asus_laptop *asus = dev_get_drvdata(dev); 1117 1118 return sysfs_acpi_set(asus, buf, count, METHOD_WWAN); 1119} 1120 1121/* 1122 * Display 1123 */ 1124static void asus_set_display(struct asus_laptop *asus, int value) 1125{ 1126 /* no sanity check needed for now */ 1127 if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value)) 1128 pr_warn("Error setting display\n"); 1129 return; 1130} 1131 1132/* 1133 * Experimental support for display switching. As of now: 1 should activate 1134 * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI. 1135 * Any combination (bitwise) of these will suffice. I never actually tested 4 1136 * displays hooked up simultaneously, so be warned. See the acpi4asus README 1137 * for more info. 1138 */ 1139static ssize_t store_disp(struct device *dev, struct device_attribute *attr, 1140 const char *buf, size_t count) 1141{ 1142 struct asus_laptop *asus = dev_get_drvdata(dev); 1143 int rv, value; 1144 1145 rv = parse_arg(buf, count, &value); 1146 if (rv > 0) 1147 asus_set_display(asus, value); 1148 return rv; 1149} 1150 1151/* 1152 * Light Sens 1153 */ 1154static void asus_als_switch(struct asus_laptop *asus, int value) 1155{ 1156 int ret; 1157 1158 if (asus->is_pega_lucid) { 1159 ret = asus_pega_lucid_set(asus, PEGA_ALS, value); 1160 if (!ret) 1161 ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value); 1162 } else { 1163 ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value); 1164 } 1165 if (ret) 1166 pr_warning("Error setting light sensor switch\n"); 1167 1168 asus->light_switch = value; 1169} 1170 1171static ssize_t show_lssw(struct device *dev, 1172 struct device_attribute *attr, char *buf) 1173{ 1174 struct asus_laptop *asus = dev_get_drvdata(dev); 1175 1176 return sprintf(buf, "%d\n", asus->light_switch); 1177} 1178 1179static ssize_t store_lssw(struct device *dev, struct device_attribute *attr, 1180 const char *buf, size_t count) 1181{ 1182 struct asus_laptop *asus = dev_get_drvdata(dev); 1183 int rv, value; 1184 1185 rv = parse_arg(buf, count, &value); 1186 if (rv > 0) 1187 asus_als_switch(asus, value ? 1 : 0); 1188 1189 return rv; 1190} 1191 1192static void asus_als_level(struct asus_laptop *asus, int value) 1193{ 1194 if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value)) 1195 pr_warn("Error setting light sensor level\n"); 1196 asus->light_level = value; 1197} 1198 1199static ssize_t show_lslvl(struct device *dev, 1200 struct device_attribute *attr, char *buf) 1201{ 1202 struct asus_laptop *asus = dev_get_drvdata(dev); 1203 1204 return sprintf(buf, "%d\n", asus->light_level); 1205} 1206 1207static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr, 1208 const char *buf, size_t count) 1209{ 1210 struct asus_laptop *asus = dev_get_drvdata(dev); 1211 int rv, value; 1212 1213 rv = parse_arg(buf, count, &value); 1214 if (rv > 0) { 1215 value = (0 < value) ? ((15 < value) ? 15 : value) : 0; 1216 /* 0 <= value <= 15 */ 1217 asus_als_level(asus, value); 1218 } 1219 1220 return rv; 1221} 1222 1223static int pega_int_read(struct asus_laptop *asus, int arg, int *result) 1224{ 1225 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; 1226 int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg, 1227 &buffer); 1228 if (!err) { 1229 union acpi_object *obj = buffer.pointer; 1230 if (obj && obj->type == ACPI_TYPE_INTEGER) 1231 *result = obj->integer.value; 1232 else 1233 err = -EIO; 1234 } 1235 return err; 1236} 1237 1238static ssize_t show_lsvalue(struct device *dev, 1239 struct device_attribute *attr, char *buf) 1240{ 1241 struct asus_laptop *asus = dev_get_drvdata(dev); 1242 int err, hi, lo; 1243 1244 err = pega_int_read(asus, PEGA_READ_ALS_H, &hi); 1245 if (!err) 1246 err = pega_int_read(asus, PEGA_READ_ALS_L, &lo); 1247 if (!err) 1248 return sprintf(buf, "%d\n", 10 * hi + lo); 1249 return err; 1250} 1251 1252/* 1253 * GPS 1254 */ 1255static int asus_gps_status(struct asus_laptop *asus) 1256{ 1257 unsigned long long status; 1258 acpi_status rv = AE_OK; 1259 1260 rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS, 1261 NULL, &status); 1262 if (ACPI_FAILURE(rv)) { 1263 pr_warn("Error reading GPS status\n"); 1264 return -ENODEV; 1265 } 1266 return !!status; 1267} 1268 1269static int asus_gps_switch(struct asus_laptop *asus, int status) 1270{ 1271 const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF; 1272 1273 if (write_acpi_int(asus->handle, meth, 0x02)) 1274 return -ENODEV; 1275 return 0; 1276} 1277 1278static ssize_t show_gps(struct device *dev, 1279 struct device_attribute *attr, char *buf) 1280{ 1281 struct asus_laptop *asus = dev_get_drvdata(dev); 1282 1283 return sprintf(buf, "%d\n", asus_gps_status(asus)); 1284} 1285 1286static ssize_t store_gps(struct device *dev, struct device_attribute *attr, 1287 const char *buf, size_t count) 1288{ 1289 struct asus_laptop *asus = dev_get_drvdata(dev); 1290 int rv, value; 1291 int ret; 1292 1293 rv = parse_arg(buf, count, &value); 1294 if (rv <= 0) 1295 return -EINVAL; 1296 ret = asus_gps_switch(asus, !!value); 1297 if (ret) 1298 return ret; 1299 rfkill_set_sw_state(asus->gps.rfkill, !value); 1300 return rv; 1301} 1302 1303/* 1304 * rfkill 1305 */ 1306static int asus_gps_rfkill_set(void *data, bool blocked) 1307{ 1308 struct asus_laptop *asus = data; 1309 1310 return asus_gps_switch(asus, !blocked); 1311} 1312 1313static const struct rfkill_ops asus_gps_rfkill_ops = { 1314 .set_block = asus_gps_rfkill_set, 1315}; 1316 1317static int asus_rfkill_set(void *data, bool blocked) 1318{ 1319 struct asus_rfkill *rfk = data; 1320 struct asus_laptop *asus = rfk->asus; 1321 1322 if (rfk->control_id == WL_RSTS) 1323 return asus_wlan_set(asus, !blocked); 1324 else if (rfk->control_id == BT_RSTS) 1325 return asus_bluetooth_set(asus, !blocked); 1326 else if (rfk->control_id == WM_RSTS) 1327 return asus_wimax_set(asus, !blocked); 1328 else if (rfk->control_id == WW_RSTS) 1329 return asus_wwan_set(asus, !blocked); 1330 1331 return -EINVAL; 1332} 1333 1334static const struct rfkill_ops asus_rfkill_ops = { 1335 .set_block = asus_rfkill_set, 1336}; 1337 1338static void asus_rfkill_terminate(struct asus_rfkill *rfk) 1339{ 1340 if (!rfk->rfkill) 1341 return ; 1342 1343 rfkill_unregister(rfk->rfkill); 1344 rfkill_destroy(rfk->rfkill); 1345 rfk->rfkill = NULL; 1346} 1347 1348static void asus_rfkill_exit(struct asus_laptop *asus) 1349{ 1350 asus_rfkill_terminate(&asus->wwan); 1351 asus_rfkill_terminate(&asus->bluetooth); 1352 asus_rfkill_terminate(&asus->wlan); 1353 asus_rfkill_terminate(&asus->gps); 1354} 1355 1356static int asus_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk, 1357 const char *name, int control_id, int type, 1358 const struct rfkill_ops *ops) 1359{ 1360 int result; 1361 1362 rfk->control_id = control_id; 1363 rfk->asus = asus; 1364 rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev, 1365 type, ops, rfk); 1366 if (!rfk->rfkill) 1367 return -EINVAL; 1368 1369 result = rfkill_register(rfk->rfkill); 1370 if (result) { 1371 rfkill_destroy(rfk->rfkill); 1372 rfk->rfkill = NULL; 1373 } 1374 1375 return result; 1376} 1377 1378static int asus_rfkill_init(struct asus_laptop *asus) 1379{ 1380 int result = 0; 1381 1382 if (asus->is_pega_lucid) 1383 return -ENODEV; 1384 1385 if (!acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) && 1386 !acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) && 1387 !acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL)) 1388 result = asus_rfkill_setup(asus, &asus->gps, "asus-gps", 1389 -1, RFKILL_TYPE_GPS, 1390 &asus_gps_rfkill_ops); 1391 if (result) 1392 goto exit; 1393 1394 1395 if (!acpi_check_handle(asus->handle, METHOD_WLAN, NULL) && 1396 asus->wled_type == TYPE_RFKILL) 1397 result = asus_rfkill_setup(asus, &asus->wlan, "asus-wlan", 1398 WL_RSTS, RFKILL_TYPE_WLAN, 1399 &asus_rfkill_ops); 1400 if (result) 1401 goto exit; 1402 1403 if (!acpi_check_handle(asus->handle, METHOD_BLUETOOTH, NULL) && 1404 asus->bled_type == TYPE_RFKILL) 1405 result = asus_rfkill_setup(asus, &asus->bluetooth, 1406 "asus-bluetooth", BT_RSTS, 1407 RFKILL_TYPE_BLUETOOTH, 1408 &asus_rfkill_ops); 1409 if (result) 1410 goto exit; 1411 1412 if (!acpi_check_handle(asus->handle, METHOD_WWAN, NULL)) 1413 result = asus_rfkill_setup(asus, &asus->wwan, "asus-wwan", 1414 WW_RSTS, RFKILL_TYPE_WWAN, 1415 &asus_rfkill_ops); 1416 if (result) 1417 goto exit; 1418 1419 if (!acpi_check_handle(asus->handle, METHOD_WIMAX, NULL)) 1420 result = asus_rfkill_setup(asus, &asus->wimax, "asus-wimax", 1421 WM_RSTS, RFKILL_TYPE_WIMAX, 1422 &asus_rfkill_ops); 1423 if (result) 1424 goto exit; 1425 1426exit: 1427 if (result) 1428 asus_rfkill_exit(asus); 1429 1430 return result; 1431} 1432 1433static int pega_rfkill_set(void *data, bool blocked) 1434{ 1435 struct asus_rfkill *rfk = data; 1436 1437 int ret = asus_pega_lucid_set(rfk->asus, rfk->control_id, !blocked); 1438 return ret; 1439} 1440 1441static const struct rfkill_ops pega_rfkill_ops = { 1442 .set_block = pega_rfkill_set, 1443}; 1444 1445static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk, 1446 const char *name, int controlid, int rfkill_type) 1447{ 1448 return asus_rfkill_setup(asus, rfk, name, controlid, rfkill_type, 1449 &pega_rfkill_ops); 1450} 1451 1452static int pega_rfkill_init(struct asus_laptop *asus) 1453{ 1454 int ret = 0; 1455 1456 if(!asus->is_pega_lucid) 1457 return -ENODEV; 1458 1459 ret = pega_rfkill_setup(asus, &asus->wlan, "pega-wlan", 1460 PEGA_WLAN, RFKILL_TYPE_WLAN); 1461 if(ret) 1462 goto exit; 1463 1464 ret = pega_rfkill_setup(asus, &asus->bluetooth, "pega-bt", 1465 PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH); 1466 if(ret) 1467 goto exit; 1468 1469 ret = pega_rfkill_setup(asus, &asus->wwan, "pega-wwan", 1470 PEGA_WWAN, RFKILL_TYPE_WWAN); 1471 1472exit: 1473 if (ret) 1474 asus_rfkill_exit(asus); 1475 1476 return ret; 1477} 1478 1479/* 1480 * Input device (i.e. hotkeys) 1481 */ 1482static void asus_input_notify(struct asus_laptop *asus, int event) 1483{ 1484 if (!asus->inputdev) 1485 return ; 1486 if (!sparse_keymap_report_event(asus->inputdev, event, 1, true)) 1487 pr_info("Unknown key %x pressed\n", event); 1488} 1489 1490static int asus_input_init(struct asus_laptop *asus) 1491{ 1492 struct input_dev *input; 1493 int error; 1494 1495 input = input_allocate_device(); 1496 if (!input) 1497 return -ENOMEM; 1498 1499 input->name = "Asus Laptop extra buttons"; 1500 input->phys = ASUS_LAPTOP_FILE "/input0"; 1501 input->id.bustype = BUS_HOST; 1502 input->dev.parent = &asus->platform_device->dev; 1503 1504 error = sparse_keymap_setup(input, asus_keymap, NULL); 1505 if (error) { 1506 pr_err("Unable to setup input device keymap\n"); 1507 goto err_free_dev; 1508 } 1509 error = input_register_device(input); 1510 if (error) { 1511 pr_warn("Unable to register input device\n"); 1512 goto err_free_keymap; 1513 } 1514 1515 asus->inputdev = input; 1516 return 0; 1517 1518err_free_keymap: 1519 sparse_keymap_free(input); 1520err_free_dev: 1521 input_free_device(input); 1522 return error; 1523} 1524 1525static void asus_input_exit(struct asus_laptop *asus) 1526{ 1527 if (asus->inputdev) { 1528 sparse_keymap_free(asus->inputdev); 1529 input_unregister_device(asus->inputdev); 1530 } 1531 asus->inputdev = NULL; 1532} 1533 1534/* 1535 * ACPI driver 1536 */ 1537static void asus_acpi_notify(struct acpi_device *device, u32 event) 1538{ 1539 struct asus_laptop *asus = acpi_driver_data(device); 1540 u16 count; 1541 1542 /* TODO Find a better way to handle events count. */ 1543 count = asus->event_count[event % 128]++; 1544 acpi_bus_generate_netlink_event(asus->device->pnp.device_class, 1545 dev_name(&asus->device->dev), event, 1546 count); 1547 1548 if (event >= ATKD_BRNUP_MIN && event <= ATKD_BRNUP_MAX) 1549 event = ATKD_BRNUP; 1550 else if (event >= ATKD_BRNDOWN_MIN && 1551 event <= ATKD_BRNDOWN_MAX) 1552 event = ATKD_BRNDOWN; 1553 1554 /* Brightness events are special */ 1555 if (event == ATKD_BRNDOWN || event == ATKD_BRNUP) { 1556 if (asus->backlight_device != NULL) { 1557 /* Update the backlight device. */ 1558 asus_backlight_notify(asus); 1559 return ; 1560 } 1561 } 1562 1563 /* Accelerometer "coarse orientation change" event */ 1564 if (asus->pega_accel_poll && event == 0xEA) { 1565 kobject_uevent(&asus->pega_accel_poll->input->dev.kobj, 1566 KOBJ_CHANGE); 1567 return ; 1568 } 1569 1570 asus_input_notify(asus, event); 1571} 1572 1573static DEVICE_ATTR(infos, S_IRUGO, show_infos, NULL); 1574static DEVICE_ATTR(wlan, S_IRUGO | S_IWUSR, show_wlan, store_wlan); 1575static DEVICE_ATTR(bluetooth, S_IRUGO | S_IWUSR, 1576 show_bluetooth, store_bluetooth); 1577static DEVICE_ATTR(wimax, S_IRUGO | S_IWUSR, show_wimax, store_wimax); 1578static DEVICE_ATTR(wwan, S_IRUGO | S_IWUSR, show_wwan, store_wwan); 1579static DEVICE_ATTR(display, S_IWUSR, NULL, store_disp); 1580static DEVICE_ATTR(ledd, S_IRUGO | S_IWUSR, show_ledd, store_ledd); 1581static DEVICE_ATTR(ls_value, S_IRUGO, show_lsvalue, NULL); 1582static DEVICE_ATTR(ls_level, S_IRUGO | S_IWUSR, show_lslvl, store_lslvl); 1583static DEVICE_ATTR(ls_switch, S_IRUGO | S_IWUSR, show_lssw, store_lssw); 1584static DEVICE_ATTR(gps, S_IRUGO | S_IWUSR, show_gps, store_gps); 1585 1586static struct attribute *asus_attributes[] = { 1587 &dev_attr_infos.attr, 1588 &dev_attr_wlan.attr, 1589 &dev_attr_bluetooth.attr, 1590 &dev_attr_wimax.attr, 1591 &dev_attr_wwan.attr, 1592 &dev_attr_display.attr, 1593 &dev_attr_ledd.attr, 1594 &dev_attr_ls_value.attr, 1595 &dev_attr_ls_level.attr, 1596 &dev_attr_ls_switch.attr, 1597 &dev_attr_gps.attr, 1598 NULL 1599}; 1600 1601static umode_t asus_sysfs_is_visible(struct kobject *kobj, 1602 struct attribute *attr, 1603 int idx) 1604{ 1605 struct device *dev = container_of(kobj, struct device, kobj); 1606 struct platform_device *pdev = to_platform_device(dev); 1607 struct asus_laptop *asus = platform_get_drvdata(pdev); 1608 acpi_handle handle = asus->handle; 1609 bool supported; 1610 1611 if (asus->is_pega_lucid) { 1612 /* no ls_level interface on the Lucid */ 1613 if (attr == &dev_attr_ls_switch.attr) 1614 supported = true; 1615 else if (attr == &dev_attr_ls_level.attr) 1616 supported = false; 1617 else 1618 goto normal; 1619 1620 return supported; 1621 } 1622 1623normal: 1624 if (attr == &dev_attr_wlan.attr) { 1625 supported = !acpi_check_handle(handle, METHOD_WLAN, NULL); 1626 1627 } else if (attr == &dev_attr_bluetooth.attr) { 1628 supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL); 1629 1630 } else if (attr == &dev_attr_display.attr) { 1631 supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL); 1632 1633 } else if (attr == &dev_attr_wimax.attr) { 1634 supported = 1635 !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL); 1636 1637 } else if (attr == &dev_attr_wwan.attr) { 1638 supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL); 1639 1640 } else if (attr == &dev_attr_ledd.attr) { 1641 supported = !acpi_check_handle(handle, METHOD_LEDD, NULL); 1642 1643 } else if (attr == &dev_attr_ls_switch.attr || 1644 attr == &dev_attr_ls_level.attr) { 1645 supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) && 1646 !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL); 1647 } else if (attr == &dev_attr_ls_value.attr) { 1648 supported = asus->is_pega_lucid; 1649 } else if (attr == &dev_attr_gps.attr) { 1650 supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) && 1651 !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) && 1652 !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL); 1653 } else { 1654 supported = true; 1655 } 1656 1657 return supported ? attr->mode : 0; 1658} 1659 1660 1661static const struct attribute_group asus_attr_group = { 1662 .is_visible = asus_sysfs_is_visible, 1663 .attrs = asus_attributes, 1664}; 1665 1666static int asus_platform_init(struct asus_laptop *asus) 1667{ 1668 int result; 1669 1670 asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, -1); 1671 if (!asus->platform_device) 1672 return -ENOMEM; 1673 platform_set_drvdata(asus->platform_device, asus); 1674 1675 result = platform_device_add(asus->platform_device); 1676 if (result) 1677 goto fail_platform_device; 1678 1679 result = sysfs_create_group(&asus->platform_device->dev.kobj, 1680 &asus_attr_group); 1681 if (result) 1682 goto fail_sysfs; 1683 1684 return 0; 1685 1686fail_sysfs: 1687 platform_device_del(asus->platform_device); 1688fail_platform_device: 1689 platform_device_put(asus->platform_device); 1690 return result; 1691} 1692 1693static void asus_platform_exit(struct asus_laptop *asus) 1694{ 1695 sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group); 1696 platform_device_unregister(asus->platform_device); 1697} 1698 1699static struct platform_driver platform_driver = { 1700 .driver = { 1701 .name = ASUS_LAPTOP_FILE, 1702 .owner = THIS_MODULE, 1703 }, 1704}; 1705 1706/* 1707 * This function is used to initialize the context with right values. In this 1708 * method, we can make all the detection we want, and modify the asus_laptop 1709 * struct 1710 */ 1711static int asus_laptop_get_info(struct asus_laptop *asus) 1712{ 1713 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; 1714 union acpi_object *model = NULL; 1715 unsigned long long bsts_result; 1716 char *string = NULL; 1717 acpi_status status; 1718 1719 /* 1720 * Get DSDT headers early enough to allow for differentiating between 1721 * models, but late enough to allow acpi_bus_register_driver() to fail 1722 * before doing anything ACPI-specific. Should we encounter a machine, 1723 * which needs special handling (i.e. its hotkey device has a different 1724 * HID), this bit will be moved. 1725 */ 1726 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info); 1727 if (ACPI_FAILURE(status)) 1728 pr_warn("Couldn't get the DSDT table header\n"); 1729 1730 /* We have to write 0 on init this far for all ASUS models */ 1731 if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) { 1732 pr_err("Hotkey initialization failed\n"); 1733 return -ENODEV; 1734 } 1735 1736 /* This needs to be called for some laptops to init properly */ 1737 status = 1738 acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result); 1739 if (ACPI_FAILURE(status)) 1740 pr_warn("Error calling BSTS\n"); 1741 else if (bsts_result) 1742 pr_notice("BSTS called, 0x%02x returned\n", 1743 (uint) bsts_result); 1744 1745 /* This too ... */ 1746 if (write_acpi_int(asus->handle, "CWAP", wapf)) 1747 pr_err("Error calling CWAP(%d)\n", wapf); 1748 /* 1749 * Try to match the object returned by INIT to the specific model. 1750 * Handle every possible object (or the lack of thereof) the DSDT 1751 * writers might throw at us. When in trouble, we pass NULL to 1752 * asus_model_match() and try something completely different. 1753 */ 1754 if (buffer.pointer) { 1755 model = buffer.pointer; 1756 switch (model->type) { 1757 case ACPI_TYPE_STRING: 1758 string = model->string.pointer; 1759 break; 1760 case ACPI_TYPE_BUFFER: 1761 string = model->buffer.pointer; 1762 break; 1763 default: 1764 string = ""; 1765 break; 1766 } 1767 } 1768 asus->name = kstrdup(string, GFP_KERNEL); 1769 if (!asus->name) { 1770 kfree(buffer.pointer); 1771 return -ENOMEM; 1772 } 1773 1774 if (string) 1775 pr_notice(" %s model detected\n", string); 1776 1777 if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL)) 1778 asus->have_rsts = true; 1779 1780 kfree(model); 1781 1782 return AE_OK; 1783} 1784 1785static int asus_acpi_init(struct asus_laptop *asus) 1786{ 1787 int result = 0; 1788 1789 result = acpi_bus_get_status(asus->device); 1790 if (result) 1791 return result; 1792 if (!asus->device->status.present) { 1793 pr_err("Hotkey device not present, aborting\n"); 1794 return -ENODEV; 1795 } 1796 1797 result = asus_laptop_get_info(asus); 1798 if (result) 1799 return result; 1800 1801 if (!strcmp(bled_type, "led")) 1802 asus->bled_type = TYPE_LED; 1803 else if (!strcmp(bled_type, "rfkill")) 1804 asus->bled_type = TYPE_RFKILL; 1805 1806 if (!strcmp(wled_type, "led")) 1807 asus->wled_type = TYPE_LED; 1808 else if (!strcmp(wled_type, "rfkill")) 1809 asus->wled_type = TYPE_RFKILL; 1810 1811 if (bluetooth_status >= 0) 1812 asus_bluetooth_set(asus, !!bluetooth_status); 1813 1814 if (wlan_status >= 0) 1815 asus_wlan_set(asus, !!wlan_status); 1816 1817 if (wimax_status >= 0) 1818 asus_wimax_set(asus, !!wimax_status); 1819 1820 if (wwan_status >= 0) 1821 asus_wwan_set(asus, !!wwan_status); 1822 1823 /* Keyboard Backlight is on by default */ 1824 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL)) 1825 asus_kled_set(asus, 1); 1826 1827 /* LED display is off by default */ 1828 asus->ledd_status = 0xFFF; 1829 1830 /* Set initial values of light sensor and level */ 1831 asus->light_switch = !!als_status; 1832 asus->light_level = 5; /* level 5 for sensor sensitivity */ 1833 1834 if (asus->is_pega_lucid) { 1835 asus_als_switch(asus, asus->light_switch); 1836 } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) && 1837 !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) { 1838 asus_als_switch(asus, asus->light_switch); 1839 asus_als_level(asus, asus->light_level); 1840 } 1841 1842 return result; 1843} 1844 1845static void asus_dmi_check(void) 1846{ 1847 const char *model; 1848 1849 model = dmi_get_system_info(DMI_PRODUCT_NAME); 1850 if (!model) 1851 return; 1852 1853 /* On L1400B WLED control the sound card, don't mess with it ... */ 1854 if (strncmp(model, "L1400B", 6) == 0) { 1855 wlan_status = -1; 1856 } 1857} 1858 1859static bool asus_device_present; 1860 1861static int asus_acpi_add(struct acpi_device *device) 1862{ 1863 struct asus_laptop *asus; 1864 int result; 1865 1866 pr_notice("Asus Laptop Support version %s\n", 1867 ASUS_LAPTOP_VERSION); 1868 asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL); 1869 if (!asus) 1870 return -ENOMEM; 1871 asus->handle = device->handle; 1872 strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME); 1873 strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS); 1874 device->driver_data = asus; 1875 asus->device = device; 1876 1877 asus_dmi_check(); 1878 1879 result = asus_acpi_init(asus); 1880 if (result) 1881 goto fail_platform; 1882 1883 /* 1884 * Need platform type detection first, then the platform 1885 * device. It is used as a parent for the sub-devices below. 1886 */ 1887 asus->is_pega_lucid = asus_check_pega_lucid(asus); 1888 result = asus_platform_init(asus); 1889 if (result) 1890 goto fail_platform; 1891 1892 if (!acpi_video_backlight_support()) { 1893 result = asus_backlight_init(asus); 1894 if (result) 1895 goto fail_backlight; 1896 } else 1897 pr_info("Backlight controlled by ACPI video driver\n"); 1898 1899 result = asus_input_init(asus); 1900 if (result) 1901 goto fail_input; 1902 1903 result = asus_led_init(asus); 1904 if (result) 1905 goto fail_led; 1906 1907 result = asus_rfkill_init(asus); 1908 if (result && result != -ENODEV) 1909 goto fail_rfkill; 1910 1911 result = pega_accel_init(asus); 1912 if (result && result != -ENODEV) 1913 goto fail_pega_accel; 1914 1915 result = pega_rfkill_init(asus); 1916 if (result && result != -ENODEV) 1917 goto fail_pega_rfkill; 1918 1919 asus_device_present = true; 1920 return 0; 1921 1922fail_pega_rfkill: 1923 pega_accel_exit(asus); 1924fail_pega_accel: 1925 asus_rfkill_exit(asus); 1926fail_rfkill: 1927 asus_led_exit(asus); 1928fail_led: 1929 asus_input_exit(asus); 1930fail_input: 1931 asus_backlight_exit(asus); 1932fail_backlight: 1933 asus_platform_exit(asus); 1934fail_platform: 1935 kfree(asus); 1936 1937 return result; 1938} 1939 1940static int asus_acpi_remove(struct acpi_device *device) 1941{ 1942 struct asus_laptop *asus = acpi_driver_data(device); 1943 1944 asus_backlight_exit(asus); 1945 asus_rfkill_exit(asus); 1946 asus_led_exit(asus); 1947 asus_input_exit(asus); 1948 pega_accel_exit(asus); 1949 asus_platform_exit(asus); 1950 1951 kfree(asus->name); 1952 kfree(asus); 1953 return 0; 1954} 1955 1956static const struct acpi_device_id asus_device_ids[] = { 1957 {"ATK0100", 0}, 1958 {"ATK0101", 0}, 1959 {"", 0}, 1960}; 1961MODULE_DEVICE_TABLE(acpi, asus_device_ids); 1962 1963static struct acpi_driver asus_acpi_driver = { 1964 .name = ASUS_LAPTOP_NAME, 1965 .class = ASUS_LAPTOP_CLASS, 1966 .owner = THIS_MODULE, 1967 .ids = asus_device_ids, 1968 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, 1969 .ops = { 1970 .add = asus_acpi_add, 1971 .remove = asus_acpi_remove, 1972 .notify = asus_acpi_notify, 1973 }, 1974}; 1975 1976static int __init asus_laptop_init(void) 1977{ 1978 int result; 1979 1980 result = platform_driver_register(&platform_driver); 1981 if (result < 0) 1982 return result; 1983 1984 result = acpi_bus_register_driver(&asus_acpi_driver); 1985 if (result < 0) 1986 goto fail_acpi_driver; 1987 if (!asus_device_present) { 1988 result = -ENODEV; 1989 goto fail_no_device; 1990 } 1991 return 0; 1992 1993fail_no_device: 1994 acpi_bus_unregister_driver(&asus_acpi_driver); 1995fail_acpi_driver: 1996 platform_driver_unregister(&platform_driver); 1997 return result; 1998} 1999 2000static void __exit asus_laptop_exit(void) 2001{ 2002 acpi_bus_unregister_driver(&asus_acpi_driver); 2003 platform_driver_unregister(&platform_driver); 2004} 2005 2006module_init(asus_laptop_init); 2007module_exit(asus_laptop_exit); 2008