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