asus-laptop.c revision a2d5dd24af1308d35329d78e74a1a3a94a1c1344
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 <acpi/acpi_drivers.h> 57#include <acpi/acpi_bus.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 67MODULE_AUTHOR("Julien Lerouge, Karol Kozimor, Corentin Chary"); 68MODULE_DESCRIPTION(ASUS_LAPTOP_NAME); 69MODULE_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 */ 80static uint wapf = 1; 81module_param(wapf, uint, 0444); 82MODULE_PARM_DESC(wapf, "WAPF value"); 83 84static char *wled_type = "unknown"; 85static char *bled_type = "unknown"; 86 87module_param(wled_type, charp, 0444); 88MODULE_PARM_DESC(wlan_status, "Set the wled type on boot " 89 "(unknown, led or rfkill). " 90 "default is unknown"); 91 92module_param(bled_type, charp, 0444); 93MODULE_PARM_DESC(bled_type, "Set the bled type on boot " 94 "(unknown, led or rfkill). " 95 "default is unknown"); 96 97static int wlan_status = 1; 98static int bluetooth_status = 1; 99static int wimax_status = -1; 100static int wwan_status = -1; 101static int als_status; 102 103module_param(wlan_status, int, 0444); 104MODULE_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 108module_param(bluetooth_status, int, 0444); 109MODULE_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 113module_param(wimax_status, int, 0444); 114MODULE_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 118module_param(wwan_status, int, 0444); 119MODULE_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 123module_param(als_status, int, 0444); 124MODULE_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_BR_UP 0x10 /* (event & ~ATKD_BR_UP) = brightness level */ 132#define ATKD_BR_DOWN 0x20 /* (event & ~ATKD_BR_DOWN) = britghness level */ 133#define ATKD_BR_MIN ATKD_BR_UP 134#define ATKD_BR_MAX (ATKD_BR_DOWN | 0xF) /* 0x2f */ 135#define ATKD_LCD_ON 0x33 136#define ATKD_LCD_OFF 0x34 137 138/* 139 * Known bits returned by \_SB.ATKD.HWRS 140 */ 141#define WL_HWRS 0x80 142#define BT_HWRS 0x100 143 144/* 145 * Flags for hotk status 146 * WL_ON and BT_ON are also used for wireless_status() 147 */ 148#define WL_RSTS 0x01 /* internal Wifi */ 149#define BT_RSTS 0x02 /* internal Bluetooth */ 150#define WM_RSTS 0x08 /* internal wimax */ 151#define WW_RSTS 0x20 /* internal wwan */ 152 153/* WLED and BLED type */ 154#define TYPE_UNKNOWN 0 155#define TYPE_LED 1 156#define TYPE_RFKILL 2 157 158/* LED */ 159#define METHOD_MLED "MLED" 160#define METHOD_TLED "TLED" 161#define METHOD_RLED "RLED" /* W1JC */ 162#define METHOD_PLED "PLED" /* A7J */ 163#define METHOD_GLED "GLED" /* G1, G2 (probably) */ 164 165/* LEDD */ 166#define METHOD_LEDD "SLCM" 167 168/* 169 * Bluetooth and WLAN 170 * WLED and BLED are not handled like other XLED, because in some dsdt 171 * they also control the WLAN/Bluetooth device. 172 */ 173#define METHOD_WLAN "WLED" 174#define METHOD_BLUETOOTH "BLED" 175 176/* WWAN and WIMAX */ 177#define METHOD_WWAN "GSMC" 178#define METHOD_WIMAX "WMXC" 179 180#define METHOD_WL_STATUS "RSTS" 181 182/* Brightness */ 183#define METHOD_BRIGHTNESS_SET "SPLV" 184#define METHOD_BRIGHTNESS_GET "GPLV" 185 186/* Display */ 187#define METHOD_SWITCH_DISPLAY "SDSP" 188 189#define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */ 190#define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */ 191 192/* GPS */ 193/* R2H use different handle for GPS on/off */ 194#define METHOD_GPS_ON "SDON" 195#define METHOD_GPS_OFF "SDOF" 196#define METHOD_GPS_STATUS "GPST" 197 198/* Keyboard light */ 199#define METHOD_KBD_LIGHT_SET "SLKB" 200#define METHOD_KBD_LIGHT_GET "GLKB" 201 202/* For Pegatron Lucid tablet */ 203#define DEVICE_NAME_PEGA "Lucid" 204 205#define METHOD_PEGA_ENABLE "ENPR" 206#define METHOD_PEGA_DISABLE "DAPR" 207#define PEGA_WLAN 0x00 208#define PEGA_BLUETOOTH 0x01 209#define PEGA_WWAN 0x02 210#define PEGA_ALS 0x04 211#define PEGA_ALS_POWER 0x05 212 213#define METHOD_PEGA_READ "RDLN" 214#define PEGA_READ_ALS_H 0x02 215#define PEGA_READ_ALS_L 0x03 216 217#define PEGA_ACCEL_NAME "pega_accel" 218#define PEGA_ACCEL_DESC "Pegatron Lucid Tablet Accelerometer" 219#define METHOD_XLRX "XLRX" 220#define METHOD_XLRY "XLRY" 221#define METHOD_XLRZ "XLRZ" 222#define PEGA_ACC_CLAMP 512 /* 1G accel is reported as ~256, so clamp to 2G */ 223#define PEGA_ACC_RETRIES 3 224 225/* 226 * Define a specific led structure to keep the main structure clean 227 */ 228struct asus_led { 229 int wk; 230 struct work_struct work; 231 struct led_classdev led; 232 struct asus_laptop *asus; 233 const char *method; 234}; 235 236/* 237 * Same thing for rfkill 238 */ 239struct asus_rfkill { 240 /* type of control. Maps to PEGA_* values or *_RSTS */ 241 int control_id; 242 struct rfkill *rfkill; 243 struct asus_laptop *asus; 244}; 245 246/* 247 * This is the main structure, we can use it to store anything interesting 248 * about the hotk device 249 */ 250struct asus_laptop { 251 char *name; /* laptop name */ 252 253 struct acpi_table_header *dsdt_info; 254 struct platform_device *platform_device; 255 struct acpi_device *device; /* the device we are in */ 256 struct backlight_device *backlight_device; 257 258 struct input_dev *inputdev; 259 struct key_entry *keymap; 260 struct input_polled_dev *pega_accel_poll; 261 262 struct asus_led wled; 263 struct asus_led bled; 264 struct asus_led mled; 265 struct asus_led tled; 266 struct asus_led rled; 267 struct asus_led pled; 268 struct asus_led gled; 269 struct asus_led kled; 270 struct workqueue_struct *led_workqueue; 271 272 int wled_type; 273 int bled_type; 274 int wireless_status; 275 bool have_rsts; 276 bool is_pega_lucid; 277 bool pega_acc_live; 278 int pega_acc_x; 279 int pega_acc_y; 280 int pega_acc_z; 281 282 struct asus_rfkill wlan; 283 struct asus_rfkill bluetooth; 284 struct asus_rfkill wwan; 285 struct asus_rfkill wimax; 286 struct asus_rfkill gps; 287 288 acpi_handle handle; /* the handle of the hotk device */ 289 u32 ledd_status; /* status of the LED display */ 290 u8 light_level; /* light sensor level */ 291 u8 light_switch; /* light sensor switch value */ 292 u16 event_count[128]; /* count for each event TODO make this better */ 293}; 294 295static const struct key_entry asus_keymap[] = { 296 /* Lenovo SL Specific keycodes */ 297 {KE_KEY, 0x02, { KEY_SCREENLOCK } }, 298 {KE_KEY, 0x05, { KEY_WLAN } }, 299 {KE_KEY, 0x08, { KEY_F13 } }, 300 {KE_KEY, 0x09, { KEY_PROG2 } }, /* Dock */ 301 {KE_KEY, 0x17, { KEY_ZOOM } }, 302 {KE_KEY, 0x1f, { KEY_BATTERY } }, 303 /* End of Lenovo SL Specific keycodes */ 304 {KE_KEY, 0x30, { KEY_VOLUMEUP } }, 305 {KE_KEY, 0x31, { KEY_VOLUMEDOWN } }, 306 {KE_KEY, 0x32, { KEY_MUTE } }, 307 {KE_KEY, 0x33, { KEY_SWITCHVIDEOMODE } }, 308 {KE_KEY, 0x34, { KEY_SWITCHVIDEOMODE } }, 309 {KE_KEY, 0x40, { KEY_PREVIOUSSONG } }, 310 {KE_KEY, 0x41, { KEY_NEXTSONG } }, 311 {KE_KEY, 0x43, { KEY_STOPCD } }, 312 {KE_KEY, 0x45, { KEY_PLAYPAUSE } }, 313 {KE_KEY, 0x4c, { KEY_MEDIA } }, 314 {KE_KEY, 0x50, { KEY_EMAIL } }, 315 {KE_KEY, 0x51, { KEY_WWW } }, 316 {KE_KEY, 0x55, { KEY_CALC } }, 317 {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */ 318 {KE_KEY, 0x5D, { KEY_WLAN } }, 319 {KE_KEY, 0x5E, { KEY_WLAN } }, 320 {KE_KEY, 0x5F, { KEY_WLAN } }, 321 {KE_KEY, 0x60, { KEY_SWITCHVIDEOMODE } }, 322 {KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, 323 {KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, 324 {KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, 325 {KE_KEY, 0x6B, { KEY_F13 } }, /* Lock Touchpad */ 326 {KE_KEY, 0x6C, { KEY_SLEEP } }, /* Suspend */ 327 {KE_KEY, 0x6D, { KEY_SLEEP } }, /* Hibernate */ 328 {KE_KEY, 0x7E, { KEY_BLUETOOTH } }, 329 {KE_KEY, 0x7D, { KEY_BLUETOOTH } }, 330 {KE_KEY, 0x82, { KEY_CAMERA } }, 331 {KE_KEY, 0x88, { KEY_WLAN } }, 332 {KE_KEY, 0x8A, { KEY_PROG1 } }, 333 {KE_KEY, 0x95, { KEY_MEDIA } }, 334 {KE_KEY, 0x99, { KEY_PHONE } }, 335 {KE_KEY, 0xc4, { KEY_KBDILLUMUP } }, 336 {KE_KEY, 0xc5, { KEY_KBDILLUMDOWN } }, 337 {KE_KEY, 0xb5, { KEY_CALC } }, 338 {KE_END, 0}, 339}; 340 341 342/* 343 * This function evaluates an ACPI method, given an int as parameter, the 344 * method is searched within the scope of the handle, can be NULL. The output 345 * of the method is written is output, which can also be NULL 346 * 347 * returns 0 if write is successful, -1 else. 348 */ 349static int write_acpi_int_ret(acpi_handle handle, const char *method, int val, 350 struct acpi_buffer *output) 351{ 352 struct acpi_object_list params; /* list of input parameters (an int) */ 353 union acpi_object in_obj; /* the only param we use */ 354 acpi_status status; 355 356 if (!handle) 357 return -1; 358 359 params.count = 1; 360 params.pointer = &in_obj; 361 in_obj.type = ACPI_TYPE_INTEGER; 362 in_obj.integer.value = val; 363 364 status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); 365 if (status == AE_OK) 366 return 0; 367 else 368 return -1; 369} 370 371static int write_acpi_int(acpi_handle handle, const char *method, int val) 372{ 373 return write_acpi_int_ret(handle, method, val, NULL); 374} 375 376static int acpi_check_handle(acpi_handle handle, const char *method, 377 acpi_handle *ret) 378{ 379 acpi_status status; 380 381 if (method == NULL) 382 return -ENODEV; 383 384 if (ret) 385 status = acpi_get_handle(handle, (char *)method, 386 ret); 387 else { 388 acpi_handle dummy; 389 390 status = acpi_get_handle(handle, (char *)method, 391 &dummy); 392 } 393 394 if (status != AE_OK) { 395 if (ret) 396 pr_warn("Error finding %s\n", method); 397 return -ENODEV; 398 } 399 return 0; 400} 401 402static bool asus_check_pega_lucid(struct asus_laptop *asus) 403{ 404 return !strcmp(asus->name, DEVICE_NAME_PEGA) && 405 !acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) && 406 !acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) && 407 !acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL); 408} 409 410static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable) 411{ 412 char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE; 413 return write_acpi_int(asus->handle, method, unit); 414} 415 416static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method) 417{ 418 int i, delta; 419 unsigned long long val; 420 for (i = 0; i < PEGA_ACC_RETRIES; i++) { 421 acpi_evaluate_integer(asus->handle, method, NULL, &val); 422 423 /* The output is noisy. From reading the ASL 424 * dissassembly, timeout errors are returned with 1's 425 * in the high word, and the lack of locking around 426 * thei hi/lo byte reads means that a transition 427 * between (for example) -1 and 0 could be read as 428 * 0xff00 or 0x00ff. */ 429 delta = abs(curr - (short)val); 430 if (delta < 128 && !(val & ~0xffff)) 431 break; 432 } 433 return clamp_val((short)val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP); 434} 435 436static void pega_accel_poll(struct input_polled_dev *ipd) 437{ 438 struct device *parent = ipd->input->dev.parent; 439 struct asus_laptop *asus = dev_get_drvdata(parent); 440 441 /* In some cases, the very first call to poll causes a 442 * recursive fault under the polldev worker. This is 443 * apparently related to very early userspace access to the 444 * device, and perhaps a firmware bug. Fake the first report. */ 445 if (!asus->pega_acc_live) { 446 asus->pega_acc_live = true; 447 input_report_abs(ipd->input, ABS_X, 0); 448 input_report_abs(ipd->input, ABS_Y, 0); 449 input_report_abs(ipd->input, ABS_Z, 0); 450 input_sync(ipd->input); 451 return; 452 } 453 454 asus->pega_acc_x = pega_acc_axis(asus, asus->pega_acc_x, METHOD_XLRX); 455 asus->pega_acc_y = pega_acc_axis(asus, asus->pega_acc_y, METHOD_XLRY); 456 asus->pega_acc_z = pega_acc_axis(asus, asus->pega_acc_z, METHOD_XLRZ); 457 458 /* Note transform, convert to "right/up/out" in the native 459 * landscape orientation (i.e. the vector is the direction of 460 * "real up" in the device's cartiesian coordinates). */ 461 input_report_abs(ipd->input, ABS_X, -asus->pega_acc_x); 462 input_report_abs(ipd->input, ABS_Y, -asus->pega_acc_y); 463 input_report_abs(ipd->input, ABS_Z, asus->pega_acc_z); 464 input_sync(ipd->input); 465} 466 467static void pega_accel_exit(struct asus_laptop *asus) 468{ 469 if (asus->pega_accel_poll) { 470 input_unregister_polled_device(asus->pega_accel_poll); 471 input_free_polled_device(asus->pega_accel_poll); 472 } 473 asus->pega_accel_poll = NULL; 474} 475 476static int pega_accel_init(struct asus_laptop *asus) 477{ 478 int err; 479 struct input_polled_dev *ipd; 480 481 if (!asus->is_pega_lucid) 482 return -ENODEV; 483 484 if (acpi_check_handle(asus->handle, METHOD_XLRX, NULL) || 485 acpi_check_handle(asus->handle, METHOD_XLRY, NULL) || 486 acpi_check_handle(asus->handle, METHOD_XLRZ, NULL)) 487 return -ENODEV; 488 489 ipd = input_allocate_polled_device(); 490 if (!ipd) 491 return -ENOMEM; 492 493 ipd->poll = pega_accel_poll; 494 ipd->poll_interval = 125; 495 ipd->poll_interval_min = 50; 496 ipd->poll_interval_max = 2000; 497 498 ipd->input->name = PEGA_ACCEL_DESC; 499 ipd->input->phys = PEGA_ACCEL_NAME "/input0"; 500 ipd->input->dev.parent = &asus->platform_device->dev; 501 ipd->input->id.bustype = BUS_HOST; 502 503 set_bit(EV_ABS, ipd->input->evbit); 504 input_set_abs_params(ipd->input, ABS_X, 505 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0); 506 input_set_abs_params(ipd->input, ABS_Y, 507 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0); 508 input_set_abs_params(ipd->input, ABS_Z, 509 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0); 510 511 err = input_register_polled_device(ipd); 512 if (err) 513 goto exit; 514 515 asus->pega_accel_poll = ipd; 516 return 0; 517 518exit: 519 input_free_polled_device(ipd); 520 return err; 521} 522 523/* Generic LED function */ 524static int asus_led_set(struct asus_laptop *asus, const char *method, 525 int value) 526{ 527 if (!strcmp(method, METHOD_MLED)) 528 value = !value; 529 else if (!strcmp(method, METHOD_GLED)) 530 value = !value + 1; 531 else 532 value = !!value; 533 534 return write_acpi_int(asus->handle, method, value); 535} 536 537/* 538 * LEDs 539 */ 540/* /sys/class/led handlers */ 541static void asus_led_cdev_set(struct led_classdev *led_cdev, 542 enum led_brightness value) 543{ 544 struct asus_led *led = container_of(led_cdev, struct asus_led, led); 545 struct asus_laptop *asus = led->asus; 546 547 led->wk = !!value; 548 queue_work(asus->led_workqueue, &led->work); 549} 550 551static void asus_led_cdev_update(struct work_struct *work) 552{ 553 struct asus_led *led = container_of(work, struct asus_led, work); 554 struct asus_laptop *asus = led->asus; 555 556 asus_led_set(asus, led->method, led->wk); 557} 558 559static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev) 560{ 561 return led_cdev->brightness; 562} 563 564/* 565 * Keyboard backlight (also a LED) 566 */ 567static int asus_kled_lvl(struct asus_laptop *asus) 568{ 569 unsigned long long kblv; 570 struct acpi_object_list params; 571 union acpi_object in_obj; 572 acpi_status rv; 573 574 params.count = 1; 575 params.pointer = &in_obj; 576 in_obj.type = ACPI_TYPE_INTEGER; 577 in_obj.integer.value = 2; 578 579 rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET, 580 ¶ms, &kblv); 581 if (ACPI_FAILURE(rv)) { 582 pr_warn("Error reading kled level\n"); 583 return -ENODEV; 584 } 585 return kblv; 586} 587 588static int asus_kled_set(struct asus_laptop *asus, int kblv) 589{ 590 if (kblv > 0) 591 kblv = (1 << 7) | (kblv & 0x7F); 592 else 593 kblv = 0; 594 595 if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) { 596 pr_warn("Keyboard LED display write failed\n"); 597 return -EINVAL; 598 } 599 return 0; 600} 601 602static void asus_kled_cdev_set(struct led_classdev *led_cdev, 603 enum led_brightness value) 604{ 605 struct asus_led *led = container_of(led_cdev, struct asus_led, led); 606 struct asus_laptop *asus = led->asus; 607 608 led->wk = value; 609 queue_work(asus->led_workqueue, &led->work); 610} 611 612static void asus_kled_cdev_update(struct work_struct *work) 613{ 614 struct asus_led *led = container_of(work, struct asus_led, work); 615 struct asus_laptop *asus = led->asus; 616 617 asus_kled_set(asus, led->wk); 618} 619 620static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev) 621{ 622 struct asus_led *led = container_of(led_cdev, struct asus_led, led); 623 struct asus_laptop *asus = led->asus; 624 625 return asus_kled_lvl(asus); 626} 627 628static void asus_led_exit(struct asus_laptop *asus) 629{ 630 if (!IS_ERR_OR_NULL(asus->wled.led.dev)) 631 led_classdev_unregister(&asus->wled.led); 632 if (!IS_ERR_OR_NULL(asus->bled.led.dev)) 633 led_classdev_unregister(&asus->bled.led); 634 if (!IS_ERR_OR_NULL(asus->mled.led.dev)) 635 led_classdev_unregister(&asus->mled.led); 636 if (!IS_ERR_OR_NULL(asus->tled.led.dev)) 637 led_classdev_unregister(&asus->tled.led); 638 if (!IS_ERR_OR_NULL(asus->pled.led.dev)) 639 led_classdev_unregister(&asus->pled.led); 640 if (!IS_ERR_OR_NULL(asus->rled.led.dev)) 641 led_classdev_unregister(&asus->rled.led); 642 if (!IS_ERR_OR_NULL(asus->gled.led.dev)) 643 led_classdev_unregister(&asus->gled.led); 644 if (!IS_ERR_OR_NULL(asus->kled.led.dev)) 645 led_classdev_unregister(&asus->kled.led); 646 if (asus->led_workqueue) { 647 destroy_workqueue(asus->led_workqueue); 648 asus->led_workqueue = NULL; 649 } 650} 651 652/* Ugly macro, need to fix that later */ 653static int asus_led_register(struct asus_laptop *asus, 654 struct asus_led *led, 655 const char *name, const char *method) 656{ 657 struct led_classdev *led_cdev = &led->led; 658 659 if (!method || acpi_check_handle(asus->handle, method, NULL)) 660 return 0; /* Led not present */ 661 662 led->asus = asus; 663 led->method = method; 664 665 INIT_WORK(&led->work, asus_led_cdev_update); 666 led_cdev->name = name; 667 led_cdev->brightness_set = asus_led_cdev_set; 668 led_cdev->brightness_get = asus_led_cdev_get; 669 led_cdev->max_brightness = 1; 670 return led_classdev_register(&asus->platform_device->dev, led_cdev); 671} 672 673static int asus_led_init(struct asus_laptop *asus) 674{ 675 int r = 0; 676 677 /* 678 * The Pegatron Lucid has no physical leds, but all methods are 679 * available in the DSDT... 680 */ 681 if (asus->is_pega_lucid) 682 return 0; 683 684 /* 685 * Functions that actually update the LED's are called from a 686 * workqueue. By doing this as separate work rather than when the LED 687 * subsystem asks, we avoid messing with the Asus ACPI stuff during a 688 * potentially bad time, such as a timer interrupt. 689 */ 690 asus->led_workqueue = create_singlethread_workqueue("led_workqueue"); 691 if (!asus->led_workqueue) 692 return -ENOMEM; 693 694 if (asus->wled_type == TYPE_LED) 695 r = asus_led_register(asus, &asus->wled, "asus::wlan", 696 METHOD_WLAN); 697 if (r) 698 goto error; 699 if (asus->bled_type == TYPE_LED) 700 r = asus_led_register(asus, &asus->bled, "asus::bluetooth", 701 METHOD_BLUETOOTH); 702 if (r) 703 goto error; 704 r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED); 705 if (r) 706 goto error; 707 r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED); 708 if (r) 709 goto error; 710 r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED); 711 if (r) 712 goto error; 713 r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED); 714 if (r) 715 goto error; 716 r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED); 717 if (r) 718 goto error; 719 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) && 720 !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) { 721 struct asus_led *led = &asus->kled; 722 struct led_classdev *cdev = &led->led; 723 724 led->asus = asus; 725 726 INIT_WORK(&led->work, asus_kled_cdev_update); 727 cdev->name = "asus::kbd_backlight"; 728 cdev->brightness_set = asus_kled_cdev_set; 729 cdev->brightness_get = asus_kled_cdev_get; 730 cdev->max_brightness = 3; 731 r = led_classdev_register(&asus->platform_device->dev, cdev); 732 } 733error: 734 if (r) 735 asus_led_exit(asus); 736 return r; 737} 738 739/* 740 * Backlight device 741 */ 742static int asus_read_brightness(struct backlight_device *bd) 743{ 744 struct asus_laptop *asus = bl_get_data(bd); 745 unsigned long long value; 746 acpi_status rv = AE_OK; 747 748 rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET, 749 NULL, &value); 750 if (ACPI_FAILURE(rv)) 751 pr_warn("Error reading brightness\n"); 752 753 return value; 754} 755 756static int asus_set_brightness(struct backlight_device *bd, int value) 757{ 758 struct asus_laptop *asus = bl_get_data(bd); 759 760 if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) { 761 pr_warn("Error changing brightness\n"); 762 return -EIO; 763 } 764 return 0; 765} 766 767static int update_bl_status(struct backlight_device *bd) 768{ 769 int value = bd->props.brightness; 770 771 return asus_set_brightness(bd, value); 772} 773 774static const struct backlight_ops asusbl_ops = { 775 .get_brightness = asus_read_brightness, 776 .update_status = update_bl_status, 777}; 778 779static int asus_backlight_notify(struct asus_laptop *asus) 780{ 781 struct backlight_device *bd = asus->backlight_device; 782 int old = bd->props.brightness; 783 784 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); 785 786 return old; 787} 788 789static int asus_backlight_init(struct asus_laptop *asus) 790{ 791 struct backlight_device *bd; 792 struct backlight_properties props; 793 794 if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) || 795 acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL)) 796 return 0; 797 798 memset(&props, 0, sizeof(struct backlight_properties)); 799 props.max_brightness = 15; 800 props.type = BACKLIGHT_PLATFORM; 801 802 bd = backlight_device_register(ASUS_LAPTOP_FILE, 803 &asus->platform_device->dev, asus, 804 &asusbl_ops, &props); 805 if (IS_ERR(bd)) { 806 pr_err("Could not register asus backlight device\n"); 807 asus->backlight_device = NULL; 808 return PTR_ERR(bd); 809 } 810 811 asus->backlight_device = bd; 812 bd->props.brightness = asus_read_brightness(bd); 813 bd->props.power = FB_BLANK_UNBLANK; 814 backlight_update_status(bd); 815 return 0; 816} 817 818static void asus_backlight_exit(struct asus_laptop *asus) 819{ 820 if (asus->backlight_device) 821 backlight_device_unregister(asus->backlight_device); 822 asus->backlight_device = NULL; 823} 824 825/* 826 * Platform device handlers 827 */ 828 829/* 830 * We write our info in page, we begin at offset off and cannot write more 831 * than count bytes. We set eof to 1 if we handle those 2 values. We return the 832 * number of bytes written in page 833 */ 834static ssize_t show_infos(struct device *dev, 835 struct device_attribute *attr, char *page) 836{ 837 struct asus_laptop *asus = dev_get_drvdata(dev); 838 int len = 0; 839 unsigned long long temp; 840 char buf[16]; /* enough for all info */ 841 acpi_status rv = AE_OK; 842 843 /* 844 * We use the easy way, we don't care of off and count, 845 * so we don't set eof to 1 846 */ 847 848 len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n"); 849 len += sprintf(page + len, "Model reference : %s\n", asus->name); 850 /* 851 * The SFUN method probably allows the original driver to get the list 852 * of features supported by a given model. For now, 0x0100 or 0x0800 853 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. 854 * The significance of others is yet to be found. 855 */ 856 rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp); 857 if (!ACPI_FAILURE(rv)) 858 len += sprintf(page + len, "SFUN value : %#x\n", 859 (uint) temp); 860 /* 861 * The HWRS method return informations about the hardware. 862 * 0x80 bit is for WLAN, 0x100 for Bluetooth. 863 * The significance of others is yet to be found. 864 * If we don't find the method, we assume the device are present. 865 */ 866 rv = acpi_evaluate_integer(asus->handle, "HRWS", NULL, &temp); 867 if (!ACPI_FAILURE(rv)) 868 len += sprintf(page + len, "HRWS value : %#x\n", 869 (uint) temp); 870 /* 871 * Another value for userspace: the ASYM method returns 0x02 for 872 * battery low and 0x04 for battery critical, its readings tend to be 873 * more accurate than those provided by _BST. 874 * Note: since not all the laptops provide this method, errors are 875 * silently ignored. 876 */ 877 rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp); 878 if (!ACPI_FAILURE(rv)) 879 len += sprintf(page + len, "ASYM value : %#x\n", 880 (uint) temp); 881 if (asus->dsdt_info) { 882 snprintf(buf, 16, "%d", asus->dsdt_info->length); 883 len += sprintf(page + len, "DSDT length : %s\n", buf); 884 snprintf(buf, 16, "%d", asus->dsdt_info->checksum); 885 len += sprintf(page + len, "DSDT checksum : %s\n", buf); 886 snprintf(buf, 16, "%d", asus->dsdt_info->revision); 887 len += sprintf(page + len, "DSDT revision : %s\n", buf); 888 snprintf(buf, 7, "%s", asus->dsdt_info->oem_id); 889 len += sprintf(page + len, "OEM id : %s\n", buf); 890 snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id); 891 len += sprintf(page + len, "OEM table id : %s\n", buf); 892 snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision); 893 len += sprintf(page + len, "OEM revision : 0x%s\n", buf); 894 snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id); 895 len += sprintf(page + len, "ASL comp vendor id : %s\n", buf); 896 snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision); 897 len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf); 898 } 899 900 return len; 901} 902 903static int parse_arg(const char *buf, unsigned long count, int *val) 904{ 905 if (!count) 906 return 0; 907 if (count > 31) 908 return -EINVAL; 909 if (sscanf(buf, "%i", val) != 1) 910 return -EINVAL; 911 return count; 912} 913 914static ssize_t sysfs_acpi_set(struct asus_laptop *asus, 915 const char *buf, size_t count, 916 const char *method) 917{ 918 int rv, value; 919 int out = 0; 920 921 rv = parse_arg(buf, count, &value); 922 if (rv > 0) 923 out = value ? 1 : 0; 924 925 if (write_acpi_int(asus->handle, method, value)) 926 return -ENODEV; 927 return rv; 928} 929 930/* 931 * LEDD display 932 */ 933static ssize_t show_ledd(struct device *dev, 934 struct device_attribute *attr, char *buf) 935{ 936 struct asus_laptop *asus = dev_get_drvdata(dev); 937 938 return sprintf(buf, "0x%08x\n", asus->ledd_status); 939} 940 941static ssize_t store_ledd(struct device *dev, struct device_attribute *attr, 942 const char *buf, size_t count) 943{ 944 struct asus_laptop *asus = dev_get_drvdata(dev); 945 int rv, value; 946 947 rv = parse_arg(buf, count, &value); 948 if (rv > 0) { 949 if (write_acpi_int(asus->handle, METHOD_LEDD, value)) { 950 pr_warn("LED display write failed\n"); 951 return -ENODEV; 952 } 953 asus->ledd_status = (u32) value; 954 } 955 return rv; 956} 957 958/* 959 * Wireless 960 */ 961static int asus_wireless_status(struct asus_laptop *asus, int mask) 962{ 963 unsigned long long status; 964 acpi_status rv = AE_OK; 965 966 if (!asus->have_rsts) 967 return (asus->wireless_status & mask) ? 1 : 0; 968 969 rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS, 970 NULL, &status); 971 if (ACPI_FAILURE(rv)) { 972 pr_warn("Error reading Wireless status\n"); 973 return -EINVAL; 974 } 975 return !!(status & mask); 976} 977 978/* 979 * WLAN 980 */ 981static int asus_wlan_set(struct asus_laptop *asus, int status) 982{ 983 if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) { 984 pr_warn("Error setting wlan status to %d\n", status); 985 return -EIO; 986 } 987 return 0; 988} 989 990static ssize_t show_wlan(struct device *dev, 991 struct device_attribute *attr, char *buf) 992{ 993 struct asus_laptop *asus = dev_get_drvdata(dev); 994 995 return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS)); 996} 997 998static ssize_t store_wlan(struct device *dev, struct device_attribute *attr, 999 const char *buf, size_t count) 1000{ 1001 struct asus_laptop *asus = dev_get_drvdata(dev); 1002 1003 return sysfs_acpi_set(asus, buf, count, METHOD_WLAN); 1004} 1005 1006/*e 1007 * Bluetooth 1008 */ 1009static int asus_bluetooth_set(struct asus_laptop *asus, int status) 1010{ 1011 if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) { 1012 pr_warn("Error setting bluetooth status to %d\n", status); 1013 return -EIO; 1014 } 1015 return 0; 1016} 1017 1018static ssize_t show_bluetooth(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, BT_RSTS)); 1024} 1025 1026static ssize_t store_bluetooth(struct device *dev, 1027 struct device_attribute *attr, const char *buf, 1028 size_t count) 1029{ 1030 struct asus_laptop *asus = dev_get_drvdata(dev); 1031 1032 return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH); 1033} 1034 1035/* 1036 * Wimax 1037 */ 1038static int asus_wimax_set(struct asus_laptop *asus, int status) 1039{ 1040 if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) { 1041 pr_warn("Error setting wimax status to %d\n", status); 1042 return -EIO; 1043 } 1044 return 0; 1045} 1046 1047static ssize_t show_wimax(struct device *dev, 1048 struct device_attribute *attr, char *buf) 1049{ 1050 struct asus_laptop *asus = dev_get_drvdata(dev); 1051 1052 return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS)); 1053} 1054 1055static ssize_t store_wimax(struct device *dev, 1056 struct device_attribute *attr, const char *buf, 1057 size_t count) 1058{ 1059 struct asus_laptop *asus = dev_get_drvdata(dev); 1060 1061 return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX); 1062} 1063 1064/* 1065 * Wwan 1066 */ 1067static int asus_wwan_set(struct asus_laptop *asus, int status) 1068{ 1069 if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) { 1070 pr_warn("Error setting wwan status to %d\n", status); 1071 return -EIO; 1072 } 1073 return 0; 1074} 1075 1076static ssize_t show_wwan(struct device *dev, 1077 struct device_attribute *attr, char *buf) 1078{ 1079 struct asus_laptop *asus = dev_get_drvdata(dev); 1080 1081 return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS)); 1082} 1083 1084static ssize_t store_wwan(struct device *dev, 1085 struct device_attribute *attr, const char *buf, 1086 size_t count) 1087{ 1088 struct asus_laptop *asus = dev_get_drvdata(dev); 1089 1090 return sysfs_acpi_set(asus, buf, count, METHOD_WWAN); 1091} 1092 1093/* 1094 * Display 1095 */ 1096static void asus_set_display(struct asus_laptop *asus, int value) 1097{ 1098 /* no sanity check needed for now */ 1099 if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value)) 1100 pr_warn("Error setting display\n"); 1101 return; 1102} 1103 1104/* 1105 * Experimental support for display switching. As of now: 1 should activate 1106 * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI. 1107 * Any combination (bitwise) of these will suffice. I never actually tested 4 1108 * displays hooked up simultaneously, so be warned. See the acpi4asus README 1109 * for more info. 1110 */ 1111static ssize_t store_disp(struct device *dev, struct device_attribute *attr, 1112 const char *buf, size_t count) 1113{ 1114 struct asus_laptop *asus = dev_get_drvdata(dev); 1115 int rv, value; 1116 1117 rv = parse_arg(buf, count, &value); 1118 if (rv > 0) 1119 asus_set_display(asus, value); 1120 return rv; 1121} 1122 1123/* 1124 * Light Sens 1125 */ 1126static void asus_als_switch(struct asus_laptop *asus, int value) 1127{ 1128 int ret; 1129 1130 if (asus->is_pega_lucid) { 1131 ret = asus_pega_lucid_set(asus, PEGA_ALS, value); 1132 if (!ret) 1133 ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value); 1134 } else { 1135 ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value); 1136 } 1137 if (ret) 1138 pr_warning("Error setting light sensor switch\n"); 1139 1140 asus->light_switch = value; 1141} 1142 1143static ssize_t show_lssw(struct device *dev, 1144 struct device_attribute *attr, char *buf) 1145{ 1146 struct asus_laptop *asus = dev_get_drvdata(dev); 1147 1148 return sprintf(buf, "%d\n", asus->light_switch); 1149} 1150 1151static ssize_t store_lssw(struct device *dev, struct device_attribute *attr, 1152 const char *buf, size_t count) 1153{ 1154 struct asus_laptop *asus = dev_get_drvdata(dev); 1155 int rv, value; 1156 1157 rv = parse_arg(buf, count, &value); 1158 if (rv > 0) 1159 asus_als_switch(asus, value ? 1 : 0); 1160 1161 return rv; 1162} 1163 1164static void asus_als_level(struct asus_laptop *asus, int value) 1165{ 1166 if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value)) 1167 pr_warn("Error setting light sensor level\n"); 1168 asus->light_level = value; 1169} 1170 1171static ssize_t show_lslvl(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_level); 1177} 1178 1179static ssize_t store_lslvl(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 value = (0 < value) ? ((15 < value) ? 15 : value) : 0; 1188 /* 0 <= value <= 15 */ 1189 asus_als_level(asus, value); 1190 } 1191 1192 return rv; 1193} 1194 1195static int pega_int_read(struct asus_laptop *asus, int arg, int *result) 1196{ 1197 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; 1198 int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg, 1199 &buffer); 1200 if (!err) { 1201 union acpi_object *obj = buffer.pointer; 1202 if (obj && obj->type == ACPI_TYPE_INTEGER) 1203 *result = obj->integer.value; 1204 else 1205 err = -EIO; 1206 } 1207 return err; 1208} 1209 1210static ssize_t show_lsvalue(struct device *dev, 1211 struct device_attribute *attr, char *buf) 1212{ 1213 struct asus_laptop *asus = dev_get_drvdata(dev); 1214 int err, hi, lo; 1215 1216 err = pega_int_read(asus, PEGA_READ_ALS_H, &hi); 1217 if (!err) 1218 err = pega_int_read(asus, PEGA_READ_ALS_L, &lo); 1219 if (!err) 1220 return sprintf(buf, "%d\n", 10 * hi + lo); 1221 return err; 1222} 1223 1224/* 1225 * GPS 1226 */ 1227static int asus_gps_status(struct asus_laptop *asus) 1228{ 1229 unsigned long long status; 1230 acpi_status rv = AE_OK; 1231 1232 rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS, 1233 NULL, &status); 1234 if (ACPI_FAILURE(rv)) { 1235 pr_warn("Error reading GPS status\n"); 1236 return -ENODEV; 1237 } 1238 return !!status; 1239} 1240 1241static int asus_gps_switch(struct asus_laptop *asus, int status) 1242{ 1243 const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF; 1244 1245 if (write_acpi_int(asus->handle, meth, 0x02)) 1246 return -ENODEV; 1247 return 0; 1248} 1249 1250static ssize_t show_gps(struct device *dev, 1251 struct device_attribute *attr, char *buf) 1252{ 1253 struct asus_laptop *asus = dev_get_drvdata(dev); 1254 1255 return sprintf(buf, "%d\n", asus_gps_status(asus)); 1256} 1257 1258static ssize_t store_gps(struct device *dev, struct device_attribute *attr, 1259 const char *buf, size_t count) 1260{ 1261 struct asus_laptop *asus = dev_get_drvdata(dev); 1262 int rv, value; 1263 int ret; 1264 1265 rv = parse_arg(buf, count, &value); 1266 if (rv <= 0) 1267 return -EINVAL; 1268 ret = asus_gps_switch(asus, !!value); 1269 if (ret) 1270 return ret; 1271 rfkill_set_sw_state(asus->gps.rfkill, !value); 1272 return rv; 1273} 1274 1275/* 1276 * rfkill 1277 */ 1278static int asus_gps_rfkill_set(void *data, bool blocked) 1279{ 1280 struct asus_laptop *asus = data; 1281 1282 return asus_gps_switch(asus, !blocked); 1283} 1284 1285static const struct rfkill_ops asus_gps_rfkill_ops = { 1286 .set_block = asus_gps_rfkill_set, 1287}; 1288 1289static int asus_rfkill_set(void *data, bool blocked) 1290{ 1291 struct asus_rfkill *rfk = data; 1292 struct asus_laptop *asus = rfk->asus; 1293 1294 if (rfk->control_id == WL_RSTS) 1295 return asus_wlan_set(asus, !blocked); 1296 else if (rfk->control_id == BT_RSTS) 1297 return asus_bluetooth_set(asus, !blocked); 1298 else if (rfk->control_id == WM_RSTS) 1299 return asus_wimax_set(asus, !blocked); 1300 else if (rfk->control_id == WW_RSTS) 1301 return asus_wwan_set(asus, !blocked); 1302 1303 return -EINVAL; 1304} 1305 1306static const struct rfkill_ops asus_rfkill_ops = { 1307 .set_block = asus_rfkill_set, 1308}; 1309 1310static void asus_rfkill_terminate(struct asus_rfkill *rfk) 1311{ 1312 if (!rfk->rfkill) 1313 return ; 1314 1315 rfkill_unregister(rfk->rfkill); 1316 rfkill_destroy(rfk->rfkill); 1317 rfk->rfkill = NULL; 1318} 1319 1320static void asus_rfkill_exit(struct asus_laptop *asus) 1321{ 1322 asus_rfkill_terminate(&asus->wwan); 1323 asus_rfkill_terminate(&asus->bluetooth); 1324 asus_rfkill_terminate(&asus->wlan); 1325 asus_rfkill_terminate(&asus->gps); 1326} 1327 1328static int asus_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk, 1329 const char *name, int control_id, int type, 1330 const struct rfkill_ops *ops) 1331{ 1332 int result; 1333 1334 rfk->control_id = control_id; 1335 rfk->asus = asus; 1336 rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev, 1337 type, ops, rfk); 1338 if (!rfk->rfkill) 1339 return -EINVAL; 1340 1341 result = rfkill_register(rfk->rfkill); 1342 if (result) { 1343 rfkill_destroy(rfk->rfkill); 1344 rfk->rfkill = NULL; 1345 } 1346 1347 return result; 1348} 1349 1350static int asus_rfkill_init(struct asus_laptop *asus) 1351{ 1352 int result = 0; 1353 1354 if (asus->is_pega_lucid) 1355 return -ENODEV; 1356 1357 if (!acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) && 1358 !acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) && 1359 !acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL)) 1360 result = asus_rfkill_setup(asus, &asus->gps, "asus-gps", 1361 -1, RFKILL_TYPE_GPS, 1362 &asus_gps_rfkill_ops); 1363 if (result) 1364 goto exit; 1365 1366 1367 if (!acpi_check_handle(asus->handle, METHOD_WLAN, NULL) && 1368 asus->wled_type == TYPE_RFKILL) 1369 result = asus_rfkill_setup(asus, &asus->wlan, "asus-wlan", 1370 WL_RSTS, RFKILL_TYPE_WLAN, 1371 &asus_rfkill_ops); 1372 if (result) 1373 goto exit; 1374 1375 if (!acpi_check_handle(asus->handle, METHOD_BLUETOOTH, NULL) && 1376 asus->bled_type == TYPE_RFKILL) 1377 result = asus_rfkill_setup(asus, &asus->bluetooth, 1378 "asus-bluetooth", BT_RSTS, 1379 RFKILL_TYPE_BLUETOOTH, 1380 &asus_rfkill_ops); 1381 if (result) 1382 goto exit; 1383 1384 if (!acpi_check_handle(asus->handle, METHOD_WWAN, NULL)) 1385 result = asus_rfkill_setup(asus, &asus->wwan, "asus-wwan", 1386 WW_RSTS, RFKILL_TYPE_WWAN, 1387 &asus_rfkill_ops); 1388 if (result) 1389 goto exit; 1390 1391 if (!acpi_check_handle(asus->handle, METHOD_WIMAX, NULL)) 1392 result = asus_rfkill_setup(asus, &asus->wimax, "asus-wimax", 1393 WM_RSTS, RFKILL_TYPE_WIMAX, 1394 &asus_rfkill_ops); 1395 if (result) 1396 goto exit; 1397 1398exit: 1399 if (result) 1400 asus_rfkill_exit(asus); 1401 1402 return result; 1403} 1404 1405static int pega_rfkill_set(void *data, bool blocked) 1406{ 1407 struct asus_rfkill *rfk = data; 1408 1409 int ret = asus_pega_lucid_set(rfk->asus, rfk->control_id, !blocked); 1410 return ret; 1411} 1412 1413static const struct rfkill_ops pega_rfkill_ops = { 1414 .set_block = pega_rfkill_set, 1415}; 1416 1417static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_rfkill *rfk, 1418 const char *name, int controlid, int rfkill_type) 1419{ 1420 return asus_rfkill_setup(asus, rfk, name, controlid, rfkill_type, 1421 &pega_rfkill_ops); 1422} 1423 1424static int pega_rfkill_init(struct asus_laptop *asus) 1425{ 1426 int ret = 0; 1427 1428 if(!asus->is_pega_lucid) 1429 return -ENODEV; 1430 1431 ret = pega_rfkill_setup(asus, &asus->wlan, "pega-wlan", 1432 PEGA_WLAN, RFKILL_TYPE_WLAN); 1433 if(ret) 1434 goto exit; 1435 1436 ret = pega_rfkill_setup(asus, &asus->bluetooth, "pega-bt", 1437 PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH); 1438 if(ret) 1439 goto exit; 1440 1441 ret = pega_rfkill_setup(asus, &asus->wwan, "pega-wwan", 1442 PEGA_WWAN, RFKILL_TYPE_WWAN); 1443 1444exit: 1445 if (ret) 1446 asus_rfkill_exit(asus); 1447 1448 return ret; 1449} 1450 1451/* 1452 * Input device (i.e. hotkeys) 1453 */ 1454static void asus_input_notify(struct asus_laptop *asus, int event) 1455{ 1456 if (!asus->inputdev) 1457 return ; 1458 if (!sparse_keymap_report_event(asus->inputdev, event, 1, true)) 1459 pr_info("Unknown key %x pressed\n", event); 1460} 1461 1462static int asus_input_init(struct asus_laptop *asus) 1463{ 1464 struct input_dev *input; 1465 int error; 1466 1467 input = input_allocate_device(); 1468 if (!input) { 1469 pr_warn("Unable to allocate input device\n"); 1470 return -ENOMEM; 1471 } 1472 input->name = "Asus Laptop extra buttons"; 1473 input->phys = ASUS_LAPTOP_FILE "/input0"; 1474 input->id.bustype = BUS_HOST; 1475 input->dev.parent = &asus->platform_device->dev; 1476 1477 error = sparse_keymap_setup(input, asus_keymap, NULL); 1478 if (error) { 1479 pr_err("Unable to setup input device keymap\n"); 1480 goto err_free_dev; 1481 } 1482 error = input_register_device(input); 1483 if (error) { 1484 pr_warn("Unable to register input device\n"); 1485 goto err_free_keymap; 1486 } 1487 1488 asus->inputdev = input; 1489 return 0; 1490 1491err_free_keymap: 1492 sparse_keymap_free(input); 1493err_free_dev: 1494 input_free_device(input); 1495 return error; 1496} 1497 1498static void asus_input_exit(struct asus_laptop *asus) 1499{ 1500 if (asus->inputdev) { 1501 sparse_keymap_free(asus->inputdev); 1502 input_unregister_device(asus->inputdev); 1503 } 1504 asus->inputdev = NULL; 1505} 1506 1507/* 1508 * ACPI driver 1509 */ 1510static void asus_acpi_notify(struct acpi_device *device, u32 event) 1511{ 1512 struct asus_laptop *asus = acpi_driver_data(device); 1513 u16 count; 1514 1515 /* TODO Find a better way to handle events count. */ 1516 count = asus->event_count[event % 128]++; 1517 acpi_bus_generate_proc_event(asus->device, event, count); 1518 acpi_bus_generate_netlink_event(asus->device->pnp.device_class, 1519 dev_name(&asus->device->dev), event, 1520 count); 1521 1522 /* Brightness events are special */ 1523 if (event >= ATKD_BR_MIN && event <= ATKD_BR_MAX) { 1524 1525 /* Ignore them completely if the acpi video driver is used */ 1526 if (asus->backlight_device != NULL) { 1527 /* Update the backlight device. */ 1528 asus_backlight_notify(asus); 1529 } 1530 return ; 1531 } 1532 1533 /* Accelerometer "coarse orientation change" event */ 1534 if (asus->pega_accel_poll && event == 0xEA) { 1535 kobject_uevent(&asus->pega_accel_poll->input->dev.kobj, 1536 KOBJ_CHANGE); 1537 return ; 1538 } 1539 1540 asus_input_notify(asus, event); 1541} 1542 1543static DEVICE_ATTR(infos, S_IRUGO, show_infos, NULL); 1544static DEVICE_ATTR(wlan, S_IRUGO | S_IWUSR, show_wlan, store_wlan); 1545static DEVICE_ATTR(bluetooth, S_IRUGO | S_IWUSR, 1546 show_bluetooth, store_bluetooth); 1547static DEVICE_ATTR(wimax, S_IRUGO | S_IWUSR, show_wimax, store_wimax); 1548static DEVICE_ATTR(wwan, S_IRUGO | S_IWUSR, show_wwan, store_wwan); 1549static DEVICE_ATTR(display, S_IWUSR, NULL, store_disp); 1550static DEVICE_ATTR(ledd, S_IRUGO | S_IWUSR, show_ledd, store_ledd); 1551static DEVICE_ATTR(ls_value, S_IRUGO, show_lsvalue, NULL); 1552static DEVICE_ATTR(ls_level, S_IRUGO | S_IWUSR, show_lslvl, store_lslvl); 1553static DEVICE_ATTR(ls_switch, S_IRUGO | S_IWUSR, show_lssw, store_lssw); 1554static DEVICE_ATTR(gps, S_IRUGO | S_IWUSR, show_gps, store_gps); 1555 1556static struct attribute *asus_attributes[] = { 1557 &dev_attr_infos.attr, 1558 &dev_attr_wlan.attr, 1559 &dev_attr_bluetooth.attr, 1560 &dev_attr_wimax.attr, 1561 &dev_attr_wwan.attr, 1562 &dev_attr_display.attr, 1563 &dev_attr_ledd.attr, 1564 &dev_attr_ls_value.attr, 1565 &dev_attr_ls_level.attr, 1566 &dev_attr_ls_switch.attr, 1567 &dev_attr_gps.attr, 1568 NULL 1569}; 1570 1571static umode_t asus_sysfs_is_visible(struct kobject *kobj, 1572 struct attribute *attr, 1573 int idx) 1574{ 1575 struct device *dev = container_of(kobj, struct device, kobj); 1576 struct platform_device *pdev = to_platform_device(dev); 1577 struct asus_laptop *asus = platform_get_drvdata(pdev); 1578 acpi_handle handle = asus->handle; 1579 bool supported; 1580 1581 if (asus->is_pega_lucid) { 1582 /* no ls_level interface on the Lucid */ 1583 if (attr == &dev_attr_ls_switch.attr) 1584 supported = true; 1585 else if (attr == &dev_attr_ls_level.attr) 1586 supported = false; 1587 else 1588 goto normal; 1589 1590 return supported; 1591 } 1592 1593normal: 1594 if (attr == &dev_attr_wlan.attr) { 1595 supported = !acpi_check_handle(handle, METHOD_WLAN, NULL); 1596 1597 } else if (attr == &dev_attr_bluetooth.attr) { 1598 supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL); 1599 1600 } else if (attr == &dev_attr_display.attr) { 1601 supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL); 1602 1603 } else if (attr == &dev_attr_wimax.attr) { 1604 supported = 1605 !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL); 1606 1607 } else if (attr == &dev_attr_wwan.attr) { 1608 supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL); 1609 1610 } else if (attr == &dev_attr_ledd.attr) { 1611 supported = !acpi_check_handle(handle, METHOD_LEDD, NULL); 1612 1613 } else if (attr == &dev_attr_ls_switch.attr || 1614 attr == &dev_attr_ls_level.attr) { 1615 supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) && 1616 !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL); 1617 } else if (attr == &dev_attr_ls_value.attr) { 1618 supported = asus->is_pega_lucid; 1619 } else if (attr == &dev_attr_gps.attr) { 1620 supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) && 1621 !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) && 1622 !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL); 1623 } else { 1624 supported = true; 1625 } 1626 1627 return supported ? attr->mode : 0; 1628} 1629 1630 1631static const struct attribute_group asus_attr_group = { 1632 .is_visible = asus_sysfs_is_visible, 1633 .attrs = asus_attributes, 1634}; 1635 1636static int asus_platform_init(struct asus_laptop *asus) 1637{ 1638 int result; 1639 1640 asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, -1); 1641 if (!asus->platform_device) 1642 return -ENOMEM; 1643 platform_set_drvdata(asus->platform_device, asus); 1644 1645 result = platform_device_add(asus->platform_device); 1646 if (result) 1647 goto fail_platform_device; 1648 1649 result = sysfs_create_group(&asus->platform_device->dev.kobj, 1650 &asus_attr_group); 1651 if (result) 1652 goto fail_sysfs; 1653 1654 return 0; 1655 1656fail_sysfs: 1657 platform_device_del(asus->platform_device); 1658fail_platform_device: 1659 platform_device_put(asus->platform_device); 1660 return result; 1661} 1662 1663static void asus_platform_exit(struct asus_laptop *asus) 1664{ 1665 sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group); 1666 platform_device_unregister(asus->platform_device); 1667} 1668 1669static struct platform_driver platform_driver = { 1670 .driver = { 1671 .name = ASUS_LAPTOP_FILE, 1672 .owner = THIS_MODULE, 1673 }, 1674}; 1675 1676/* 1677 * This function is used to initialize the context with right values. In this 1678 * method, we can make all the detection we want, and modify the asus_laptop 1679 * struct 1680 */ 1681static int asus_laptop_get_info(struct asus_laptop *asus) 1682{ 1683 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; 1684 union acpi_object *model = NULL; 1685 unsigned long long bsts_result, hwrs_result; 1686 char *string = NULL; 1687 acpi_status status; 1688 1689 /* 1690 * Get DSDT headers early enough to allow for differentiating between 1691 * models, but late enough to allow acpi_bus_register_driver() to fail 1692 * before doing anything ACPI-specific. Should we encounter a machine, 1693 * which needs special handling (i.e. its hotkey device has a different 1694 * HID), this bit will be moved. 1695 */ 1696 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info); 1697 if (ACPI_FAILURE(status)) 1698 pr_warn("Couldn't get the DSDT table header\n"); 1699 1700 /* We have to write 0 on init this far for all ASUS models */ 1701 if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) { 1702 pr_err("Hotkey initialization failed\n"); 1703 return -ENODEV; 1704 } 1705 1706 /* This needs to be called for some laptops to init properly */ 1707 status = 1708 acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result); 1709 if (ACPI_FAILURE(status)) 1710 pr_warn("Error calling BSTS\n"); 1711 else if (bsts_result) 1712 pr_notice("BSTS called, 0x%02x returned\n", 1713 (uint) bsts_result); 1714 1715 /* This too ... */ 1716 if (write_acpi_int(asus->handle, "CWAP", wapf)) 1717 pr_err("Error calling CWAP(%d)\n", wapf); 1718 /* 1719 * Try to match the object returned by INIT to the specific model. 1720 * Handle every possible object (or the lack of thereof) the DSDT 1721 * writers might throw at us. When in trouble, we pass NULL to 1722 * asus_model_match() and try something completely different. 1723 */ 1724 if (buffer.pointer) { 1725 model = buffer.pointer; 1726 switch (model->type) { 1727 case ACPI_TYPE_STRING: 1728 string = model->string.pointer; 1729 break; 1730 case ACPI_TYPE_BUFFER: 1731 string = model->buffer.pointer; 1732 break; 1733 default: 1734 string = ""; 1735 break; 1736 } 1737 } 1738 asus->name = kstrdup(string, GFP_KERNEL); 1739 if (!asus->name) { 1740 kfree(buffer.pointer); 1741 return -ENOMEM; 1742 } 1743 1744 if (*string) 1745 pr_notice(" %s model detected\n", string); 1746 1747 /* 1748 * The HWRS method return informations about the hardware. 1749 * 0x80 bit is for WLAN, 0x100 for Bluetooth, 1750 * 0x40 for WWAN, 0x10 for WIMAX. 1751 * The significance of others is yet to be found. 1752 */ 1753 status = 1754 acpi_evaluate_integer(asus->handle, "HRWS", NULL, &hwrs_result); 1755 if (!ACPI_FAILURE(status)) 1756 pr_notice(" HRWS returned %x", (int)hwrs_result); 1757 1758 if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL)) 1759 asus->have_rsts = true; 1760 1761 kfree(model); 1762 1763 return AE_OK; 1764} 1765 1766static int __devinit asus_acpi_init(struct asus_laptop *asus) 1767{ 1768 int result = 0; 1769 1770 result = acpi_bus_get_status(asus->device); 1771 if (result) 1772 return result; 1773 if (!asus->device->status.present) { 1774 pr_err("Hotkey device not present, aborting\n"); 1775 return -ENODEV; 1776 } 1777 1778 result = asus_laptop_get_info(asus); 1779 if (result) 1780 return result; 1781 1782 if (!strcmp(bled_type, "led")) 1783 asus->bled_type = TYPE_LED; 1784 else if (!strcmp(bled_type, "rfkill")) 1785 asus->bled_type = TYPE_RFKILL; 1786 1787 if (!strcmp(wled_type, "led")) 1788 asus->wled_type = TYPE_LED; 1789 else if (!strcmp(wled_type, "rfkill")) 1790 asus->wled_type = TYPE_RFKILL; 1791 1792 if (bluetooth_status >= 0) 1793 asus_bluetooth_set(asus, !!bluetooth_status); 1794 1795 if (wlan_status >= 0) 1796 asus_wlan_set(asus, !!wlan_status); 1797 1798 if (wimax_status >= 0) 1799 asus_wimax_set(asus, !!wimax_status); 1800 1801 if (wwan_status >= 0) 1802 asus_wwan_set(asus, !!wwan_status); 1803 1804 /* Keyboard Backlight is on by default */ 1805 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL)) 1806 asus_kled_set(asus, 1); 1807 1808 /* LED display is off by default */ 1809 asus->ledd_status = 0xFFF; 1810 1811 /* Set initial values of light sensor and level */ 1812 asus->light_switch = !!als_status; 1813 asus->light_level = 5; /* level 5 for sensor sensitivity */ 1814 1815 if (asus->is_pega_lucid) { 1816 asus_als_switch(asus, asus->light_switch); 1817 } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) && 1818 !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) { 1819 asus_als_switch(asus, asus->light_switch); 1820 asus_als_level(asus, asus->light_level); 1821 } 1822 1823 return result; 1824} 1825 1826static void __devinit asus_dmi_check(void) 1827{ 1828 const char *model; 1829 1830 model = dmi_get_system_info(DMI_PRODUCT_NAME); 1831 if (!model) 1832 return; 1833 1834 /* On L1400B WLED control the sound card, don't mess with it ... */ 1835 if (strncmp(model, "L1400B", 6) == 0) { 1836 wlan_status = -1; 1837 } 1838} 1839 1840static bool asus_device_present; 1841 1842static int __devinit asus_acpi_add(struct acpi_device *device) 1843{ 1844 struct asus_laptop *asus; 1845 int result; 1846 1847 pr_notice("Asus Laptop Support version %s\n", 1848 ASUS_LAPTOP_VERSION); 1849 asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL); 1850 if (!asus) 1851 return -ENOMEM; 1852 asus->handle = device->handle; 1853 strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME); 1854 strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS); 1855 device->driver_data = asus; 1856 asus->device = device; 1857 1858 asus_dmi_check(); 1859 1860 result = asus_acpi_init(asus); 1861 if (result) 1862 goto fail_platform; 1863 1864 /* 1865 * Need platform type detection first, then the platform 1866 * device. It is used as a parent for the sub-devices below. 1867 */ 1868 asus->is_pega_lucid = asus_check_pega_lucid(asus); 1869 result = asus_platform_init(asus); 1870 if (result) 1871 goto fail_platform; 1872 1873 if (!acpi_video_backlight_support()) { 1874 result = asus_backlight_init(asus); 1875 if (result) 1876 goto fail_backlight; 1877 } else 1878 pr_info("Backlight controlled by ACPI video driver\n"); 1879 1880 result = asus_input_init(asus); 1881 if (result) 1882 goto fail_input; 1883 1884 result = asus_led_init(asus); 1885 if (result) 1886 goto fail_led; 1887 1888 result = asus_rfkill_init(asus); 1889 if (result && result != -ENODEV) 1890 goto fail_rfkill; 1891 1892 result = pega_accel_init(asus); 1893 if (result && result != -ENODEV) 1894 goto fail_pega_accel; 1895 1896 result = pega_rfkill_init(asus); 1897 if (result && result != -ENODEV) 1898 goto fail_pega_rfkill; 1899 1900 asus_device_present = true; 1901 return 0; 1902 1903fail_pega_rfkill: 1904 pega_accel_exit(asus); 1905fail_pega_accel: 1906 asus_rfkill_exit(asus); 1907fail_rfkill: 1908 asus_led_exit(asus); 1909fail_led: 1910 asus_input_exit(asus); 1911fail_input: 1912 asus_backlight_exit(asus); 1913fail_backlight: 1914 asus_platform_exit(asus); 1915fail_platform: 1916 kfree(asus->name); 1917 kfree(asus); 1918 1919 return result; 1920} 1921 1922static int asus_acpi_remove(struct acpi_device *device, int type) 1923{ 1924 struct asus_laptop *asus = acpi_driver_data(device); 1925 1926 asus_backlight_exit(asus); 1927 asus_rfkill_exit(asus); 1928 asus_led_exit(asus); 1929 asus_input_exit(asus); 1930 pega_accel_exit(asus); 1931 asus_platform_exit(asus); 1932 1933 kfree(asus->name); 1934 kfree(asus); 1935 return 0; 1936} 1937 1938static const struct acpi_device_id asus_device_ids[] = { 1939 {"ATK0100", 0}, 1940 {"ATK0101", 0}, 1941 {"", 0}, 1942}; 1943MODULE_DEVICE_TABLE(acpi, asus_device_ids); 1944 1945static struct acpi_driver asus_acpi_driver = { 1946 .name = ASUS_LAPTOP_NAME, 1947 .class = ASUS_LAPTOP_CLASS, 1948 .owner = THIS_MODULE, 1949 .ids = asus_device_ids, 1950 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, 1951 .ops = { 1952 .add = asus_acpi_add, 1953 .remove = asus_acpi_remove, 1954 .notify = asus_acpi_notify, 1955 }, 1956}; 1957 1958static int __init asus_laptop_init(void) 1959{ 1960 int result; 1961 1962 result = platform_driver_register(&platform_driver); 1963 if (result < 0) 1964 return result; 1965 1966 result = acpi_bus_register_driver(&asus_acpi_driver); 1967 if (result < 0) 1968 goto fail_acpi_driver; 1969 if (!asus_device_present) { 1970 result = -ENODEV; 1971 goto fail_no_device; 1972 } 1973 return 0; 1974 1975fail_no_device: 1976 acpi_bus_unregister_driver(&asus_acpi_driver); 1977fail_acpi_driver: 1978 platform_driver_unregister(&platform_driver); 1979 return result; 1980} 1981 1982static void __exit asus_laptop_exit(void) 1983{ 1984 acpi_bus_unregister_driver(&asus_acpi_driver); 1985 platform_driver_unregister(&platform_driver); 1986} 1987 1988module_init(asus_laptop_init); 1989module_exit(asus_laptop_exit); 1990