asus-laptop.c revision e0ac913374247f000aa97fdd732dcaf0070dd466
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 int wlan_status = 1; 85static int bluetooth_status = 1; 86static int wimax_status = -1; 87static int wwan_status = -1; 88static int als_status; 89 90module_param(wlan_status, int, 0444); 91MODULE_PARM_DESC(wlan_status, "Set the wireless status on boot " 92 "(0 = disabled, 1 = enabled, -1 = don't do anything). " 93 "default is -1"); 94 95module_param(bluetooth_status, int, 0444); 96MODULE_PARM_DESC(bluetooth_status, "Set the wireless status on boot " 97 "(0 = disabled, 1 = enabled, -1 = don't do anything). " 98 "default is -1"); 99 100module_param(wimax_status, int, 0444); 101MODULE_PARM_DESC(wimax_status, "Set the wireless status on boot " 102 "(0 = disabled, 1 = enabled, -1 = don't do anything). " 103 "default is -1"); 104 105module_param(wwan_status, int, 0444); 106MODULE_PARM_DESC(wwan_status, "Set the wireless status on boot " 107 "(0 = disabled, 1 = enabled, -1 = don't do anything). " 108 "default is -1"); 109 110module_param(als_status, int, 0444); 111MODULE_PARM_DESC(als_status, "Set the ALS status on boot " 112 "(0 = disabled, 1 = enabled). " 113 "default is 0"); 114 115/* 116 * Some events we use, same for all Asus 117 */ 118#define ATKD_BR_UP 0x10 /* (event & ~ATKD_BR_UP) = brightness level */ 119#define ATKD_BR_DOWN 0x20 /* (event & ~ATKD_BR_DOWN) = britghness level */ 120#define ATKD_BR_MIN ATKD_BR_UP 121#define ATKD_BR_MAX (ATKD_BR_DOWN | 0xF) /* 0x2f */ 122#define ATKD_LCD_ON 0x33 123#define ATKD_LCD_OFF 0x34 124 125/* 126 * Known bits returned by \_SB.ATKD.HWRS 127 */ 128#define WL_HWRS 0x80 129#define BT_HWRS 0x100 130 131/* 132 * Flags for hotk status 133 * WL_ON and BT_ON are also used for wireless_status() 134 */ 135#define WL_RSTS 0x01 /* internal Wifi */ 136#define BT_RSTS 0x02 /* internal Bluetooth */ 137#define WM_RSTS 0x08 /* internal wimax */ 138#define WW_RSTS 0x20 /* internal wwan */ 139 140/* LED */ 141#define METHOD_MLED "MLED" 142#define METHOD_TLED "TLED" 143#define METHOD_RLED "RLED" /* W1JC */ 144#define METHOD_PLED "PLED" /* A7J */ 145#define METHOD_GLED "GLED" /* G1, G2 (probably) */ 146 147/* LEDD */ 148#define METHOD_LEDD "SLCM" 149 150/* 151 * Bluetooth and WLAN 152 * WLED and BLED are not handled like other XLED, because in some dsdt 153 * they also control the WLAN/Bluetooth device. 154 */ 155#define METHOD_WLAN "WLED" 156#define METHOD_BLUETOOTH "BLED" 157 158/* WWAN and WIMAX */ 159#define METHOD_WWAN "GSMC" 160#define METHOD_WIMAX "WMXC" 161 162#define METHOD_WL_STATUS "RSTS" 163 164/* Brightness */ 165#define METHOD_BRIGHTNESS_SET "SPLV" 166#define METHOD_BRIGHTNESS_GET "GPLV" 167 168/* Display */ 169#define METHOD_SWITCH_DISPLAY "SDSP" 170 171#define METHOD_ALS_CONTROL "ALSC" /* Z71A Z71V */ 172#define METHOD_ALS_LEVEL "ALSL" /* Z71A Z71V */ 173 174/* GPS */ 175/* R2H use different handle for GPS on/off */ 176#define METHOD_GPS_ON "SDON" 177#define METHOD_GPS_OFF "SDOF" 178#define METHOD_GPS_STATUS "GPST" 179 180/* Keyboard light */ 181#define METHOD_KBD_LIGHT_SET "SLKB" 182#define METHOD_KBD_LIGHT_GET "GLKB" 183 184/* For Pegatron Lucid tablet */ 185#define DEVICE_NAME_PEGA "Lucid" 186 187#define METHOD_PEGA_ENABLE "ENPR" 188#define METHOD_PEGA_DISABLE "DAPR" 189#define PEGA_WLAN 0x00 190#define PEGA_BLUETOOTH 0x01 191#define PEGA_WWAN 0x02 192#define PEGA_ALS 0x04 193#define PEGA_ALS_POWER 0x05 194 195#define METHOD_PEGA_READ "RDLN" 196#define PEGA_READ_ALS_H 0x02 197#define PEGA_READ_ALS_L 0x03 198 199#define PEGA_ACCEL_NAME "pega_accel" 200#define PEGA_ACCEL_DESC "Pegatron Lucid Tablet Accelerometer" 201#define METHOD_XLRX "XLRX" 202#define METHOD_XLRY "XLRY" 203#define METHOD_XLRZ "XLRZ" 204#define PEGA_ACC_CLAMP 512 /* 1G accel is reported as ~256, so clamp to 2G */ 205#define PEGA_ACC_RETRIES 3 206 207/* 208 * Define a specific led structure to keep the main structure clean 209 */ 210struct asus_led { 211 int wk; 212 struct work_struct work; 213 struct led_classdev led; 214 struct asus_laptop *asus; 215 const char *method; 216}; 217 218/* 219 * Same thing for rfkill 220 */ 221struct asus_pega_rfkill { 222 int control_id; /* type of control. Maps to PEGA_* values */ 223 struct rfkill *rfkill; 224 struct asus_laptop *asus; 225}; 226 227/* 228 * This is the main structure, we can use it to store anything interesting 229 * about the hotk device 230 */ 231struct asus_laptop { 232 char *name; /* laptop name */ 233 234 struct acpi_table_header *dsdt_info; 235 struct platform_device *platform_device; 236 struct acpi_device *device; /* the device we are in */ 237 struct backlight_device *backlight_device; 238 239 struct input_dev *inputdev; 240 struct key_entry *keymap; 241 struct input_polled_dev *pega_accel_poll; 242 243 struct asus_led mled; 244 struct asus_led tled; 245 struct asus_led rled; 246 struct asus_led pled; 247 struct asus_led gled; 248 struct asus_led kled; 249 struct workqueue_struct *led_workqueue; 250 251 int wireless_status; 252 bool have_rsts; 253 bool is_pega_lucid; 254 bool pega_acc_live; 255 int pega_acc_x; 256 int pega_acc_y; 257 int pega_acc_z; 258 259 struct rfkill *gps_rfkill; 260 261 struct asus_pega_rfkill wlanrfk; 262 struct asus_pega_rfkill btrfk; 263 struct asus_pega_rfkill wwanrfk; 264 265 acpi_handle handle; /* the handle of the hotk device */ 266 u32 ledd_status; /* status of the LED display */ 267 u8 light_level; /* light sensor level */ 268 u8 light_switch; /* light sensor switch value */ 269 u16 event_count[128]; /* count for each event TODO make this better */ 270}; 271 272static const struct key_entry asus_keymap[] = { 273 /* Lenovo SL Specific keycodes */ 274 {KE_KEY, 0x02, { KEY_SCREENLOCK } }, 275 {KE_KEY, 0x05, { KEY_WLAN } }, 276 {KE_KEY, 0x08, { KEY_F13 } }, 277 {KE_KEY, 0x17, { KEY_ZOOM } }, 278 {KE_KEY, 0x1f, { KEY_BATTERY } }, 279 /* End of Lenovo SL Specific keycodes */ 280 {KE_KEY, 0x30, { KEY_VOLUMEUP } }, 281 {KE_KEY, 0x31, { KEY_VOLUMEDOWN } }, 282 {KE_KEY, 0x32, { KEY_MUTE } }, 283 {KE_KEY, 0x33, { KEY_SWITCHVIDEOMODE } }, 284 {KE_KEY, 0x34, { KEY_SWITCHVIDEOMODE } }, 285 {KE_KEY, 0x40, { KEY_PREVIOUSSONG } }, 286 {KE_KEY, 0x41, { KEY_NEXTSONG } }, 287 {KE_KEY, 0x43, { KEY_STOPCD } }, 288 {KE_KEY, 0x45, { KEY_PLAYPAUSE } }, 289 {KE_KEY, 0x4c, { KEY_MEDIA } }, 290 {KE_KEY, 0x50, { KEY_EMAIL } }, 291 {KE_KEY, 0x51, { KEY_WWW } }, 292 {KE_KEY, 0x55, { KEY_CALC } }, 293 {KE_KEY, 0x5C, { KEY_SCREENLOCK } }, /* Screenlock */ 294 {KE_KEY, 0x5D, { KEY_WLAN } }, 295 {KE_KEY, 0x5E, { KEY_WLAN } }, 296 {KE_KEY, 0x5F, { KEY_WLAN } }, 297 {KE_KEY, 0x60, { KEY_SWITCHVIDEOMODE } }, 298 {KE_KEY, 0x61, { KEY_SWITCHVIDEOMODE } }, 299 {KE_KEY, 0x62, { KEY_SWITCHVIDEOMODE } }, 300 {KE_KEY, 0x63, { KEY_SWITCHVIDEOMODE } }, 301 {KE_KEY, 0x6B, { KEY_F13 } }, /* Lock Touchpad */ 302 {KE_KEY, 0x7E, { KEY_BLUETOOTH } }, 303 {KE_KEY, 0x7D, { KEY_BLUETOOTH } }, 304 {KE_KEY, 0x82, { KEY_CAMERA } }, 305 {KE_KEY, 0x88, { KEY_WLAN } }, 306 {KE_KEY, 0x8A, { KEY_PROG1 } }, 307 {KE_KEY, 0x95, { KEY_MEDIA } }, 308 {KE_KEY, 0x99, { KEY_PHONE } }, 309 {KE_KEY, 0xc4, { KEY_KBDILLUMUP } }, 310 {KE_KEY, 0xc5, { KEY_KBDILLUMDOWN } }, 311 {KE_KEY, 0xb5, { KEY_CALC } }, 312 {KE_END, 0}, 313}; 314 315 316/* 317 * This function evaluates an ACPI method, given an int as parameter, the 318 * method is searched within the scope of the handle, can be NULL. The output 319 * of the method is written is output, which can also be NULL 320 * 321 * returns 0 if write is successful, -1 else. 322 */ 323static int write_acpi_int_ret(acpi_handle handle, const char *method, int val, 324 struct acpi_buffer *output) 325{ 326 struct acpi_object_list params; /* list of input parameters (an int) */ 327 union acpi_object in_obj; /* the only param we use */ 328 acpi_status status; 329 330 if (!handle) 331 return -1; 332 333 params.count = 1; 334 params.pointer = &in_obj; 335 in_obj.type = ACPI_TYPE_INTEGER; 336 in_obj.integer.value = val; 337 338 status = acpi_evaluate_object(handle, (char *)method, ¶ms, output); 339 if (status == AE_OK) 340 return 0; 341 else 342 return -1; 343} 344 345static int write_acpi_int(acpi_handle handle, const char *method, int val) 346{ 347 return write_acpi_int_ret(handle, method, val, NULL); 348} 349 350static int acpi_check_handle(acpi_handle handle, const char *method, 351 acpi_handle *ret) 352{ 353 acpi_status status; 354 355 if (method == NULL) 356 return -ENODEV; 357 358 if (ret) 359 status = acpi_get_handle(handle, (char *)method, 360 ret); 361 else { 362 acpi_handle dummy; 363 364 status = acpi_get_handle(handle, (char *)method, 365 &dummy); 366 } 367 368 if (status != AE_OK) { 369 if (ret) 370 pr_warn("Error finding %s\n", method); 371 return -ENODEV; 372 } 373 return 0; 374} 375 376static bool asus_check_pega_lucid(struct asus_laptop *asus) 377{ 378 return !strcmp(asus->name, DEVICE_NAME_PEGA) && 379 !acpi_check_handle(asus->handle, METHOD_PEGA_ENABLE, NULL) && 380 !acpi_check_handle(asus->handle, METHOD_PEGA_DISABLE, NULL) && 381 !acpi_check_handle(asus->handle, METHOD_PEGA_READ, NULL); 382} 383 384static int asus_pega_lucid_set(struct asus_laptop *asus, int unit, bool enable) 385{ 386 char *method = enable ? METHOD_PEGA_ENABLE : METHOD_PEGA_DISABLE; 387 return write_acpi_int(asus->handle, method, unit); 388} 389 390static int pega_acc_axis(struct asus_laptop *asus, int curr, char *method) 391{ 392 int i, delta; 393 unsigned long long val; 394 for (i = 0; i < PEGA_ACC_RETRIES; i++) { 395 acpi_evaluate_integer(asus->handle, method, NULL, &val); 396 397 /* The output is noisy. From reading the ASL 398 * dissassembly, timeout errors are returned with 1's 399 * in the high word, and the lack of locking around 400 * thei hi/lo byte reads means that a transition 401 * between (for example) -1 and 0 could be read as 402 * 0xff00 or 0x00ff. */ 403 delta = abs(curr - (short)val); 404 if (delta < 128 && !(val & ~0xffff)) 405 break; 406 } 407 return clamp_val((short)val, -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP); 408} 409 410static void pega_accel_poll(struct input_polled_dev *ipd) 411{ 412 struct device *parent = ipd->input->dev.parent; 413 struct asus_laptop *asus = dev_get_drvdata(parent); 414 415 /* In some cases, the very first call to poll causes a 416 * recursive fault under the polldev worker. This is 417 * apparently related to very early userspace access to the 418 * device, and perhaps a firmware bug. Fake the first report. */ 419 if (!asus->pega_acc_live) { 420 asus->pega_acc_live = true; 421 input_report_abs(ipd->input, ABS_X, 0); 422 input_report_abs(ipd->input, ABS_Y, 0); 423 input_report_abs(ipd->input, ABS_Z, 0); 424 input_sync(ipd->input); 425 return; 426 } 427 428 asus->pega_acc_x = pega_acc_axis(asus, asus->pega_acc_x, METHOD_XLRX); 429 asus->pega_acc_y = pega_acc_axis(asus, asus->pega_acc_y, METHOD_XLRY); 430 asus->pega_acc_z = pega_acc_axis(asus, asus->pega_acc_z, METHOD_XLRZ); 431 432 /* Note transform, convert to "right/up/out" in the native 433 * landscape orientation (i.e. the vector is the direction of 434 * "real up" in the device's cartiesian coordinates). */ 435 input_report_abs(ipd->input, ABS_X, -asus->pega_acc_x); 436 input_report_abs(ipd->input, ABS_Y, -asus->pega_acc_y); 437 input_report_abs(ipd->input, ABS_Z, asus->pega_acc_z); 438 input_sync(ipd->input); 439} 440 441static void pega_accel_exit(struct asus_laptop *asus) 442{ 443 if (asus->pega_accel_poll) { 444 input_unregister_polled_device(asus->pega_accel_poll); 445 input_free_polled_device(asus->pega_accel_poll); 446 } 447 asus->pega_accel_poll = NULL; 448} 449 450static int pega_accel_init(struct asus_laptop *asus) 451{ 452 int err; 453 struct input_polled_dev *ipd; 454 455 if (!asus->is_pega_lucid) 456 return -ENODEV; 457 458 if (acpi_check_handle(asus->handle, METHOD_XLRX, NULL) || 459 acpi_check_handle(asus->handle, METHOD_XLRY, NULL) || 460 acpi_check_handle(asus->handle, METHOD_XLRZ, NULL)) 461 return -ENODEV; 462 463 ipd = input_allocate_polled_device(); 464 if (!ipd) 465 return -ENOMEM; 466 467 ipd->poll = pega_accel_poll; 468 ipd->poll_interval = 125; 469 ipd->poll_interval_min = 50; 470 ipd->poll_interval_max = 2000; 471 472 ipd->input->name = PEGA_ACCEL_DESC; 473 ipd->input->phys = PEGA_ACCEL_NAME "/input0"; 474 ipd->input->dev.parent = &asus->platform_device->dev; 475 ipd->input->id.bustype = BUS_HOST; 476 477 set_bit(EV_ABS, ipd->input->evbit); 478 input_set_abs_params(ipd->input, ABS_X, 479 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0); 480 input_set_abs_params(ipd->input, ABS_Y, 481 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0); 482 input_set_abs_params(ipd->input, ABS_Z, 483 -PEGA_ACC_CLAMP, PEGA_ACC_CLAMP, 0, 0); 484 485 err = input_register_polled_device(ipd); 486 if (err) 487 goto exit; 488 489 asus->pega_accel_poll = ipd; 490 return 0; 491 492exit: 493 input_free_polled_device(ipd); 494 return err; 495} 496 497/* Generic LED function */ 498static int asus_led_set(struct asus_laptop *asus, const char *method, 499 int value) 500{ 501 if (!strcmp(method, METHOD_MLED)) 502 value = !value; 503 else if (!strcmp(method, METHOD_GLED)) 504 value = !value + 1; 505 else 506 value = !!value; 507 508 return write_acpi_int(asus->handle, method, value); 509} 510 511/* 512 * LEDs 513 */ 514/* /sys/class/led handlers */ 515static void asus_led_cdev_set(struct led_classdev *led_cdev, 516 enum led_brightness value) 517{ 518 struct asus_led *led = container_of(led_cdev, struct asus_led, led); 519 struct asus_laptop *asus = led->asus; 520 521 led->wk = !!value; 522 queue_work(asus->led_workqueue, &led->work); 523} 524 525static void asus_led_cdev_update(struct work_struct *work) 526{ 527 struct asus_led *led = container_of(work, struct asus_led, work); 528 struct asus_laptop *asus = led->asus; 529 530 asus_led_set(asus, led->method, led->wk); 531} 532 533static enum led_brightness asus_led_cdev_get(struct led_classdev *led_cdev) 534{ 535 return led_cdev->brightness; 536} 537 538/* 539 * Keyboard backlight (also a LED) 540 */ 541static int asus_kled_lvl(struct asus_laptop *asus) 542{ 543 unsigned long long kblv; 544 struct acpi_object_list params; 545 union acpi_object in_obj; 546 acpi_status rv; 547 548 params.count = 1; 549 params.pointer = &in_obj; 550 in_obj.type = ACPI_TYPE_INTEGER; 551 in_obj.integer.value = 2; 552 553 rv = acpi_evaluate_integer(asus->handle, METHOD_KBD_LIGHT_GET, 554 ¶ms, &kblv); 555 if (ACPI_FAILURE(rv)) { 556 pr_warn("Error reading kled level\n"); 557 return -ENODEV; 558 } 559 return kblv; 560} 561 562static int asus_kled_set(struct asus_laptop *asus, int kblv) 563{ 564 if (kblv > 0) 565 kblv = (1 << 7) | (kblv & 0x7F); 566 else 567 kblv = 0; 568 569 if (write_acpi_int(asus->handle, METHOD_KBD_LIGHT_SET, kblv)) { 570 pr_warn("Keyboard LED display write failed\n"); 571 return -EINVAL; 572 } 573 return 0; 574} 575 576static void asus_kled_cdev_set(struct led_classdev *led_cdev, 577 enum led_brightness value) 578{ 579 struct asus_led *led = container_of(led_cdev, struct asus_led, led); 580 struct asus_laptop *asus = led->asus; 581 582 led->wk = value; 583 queue_work(asus->led_workqueue, &led->work); 584} 585 586static void asus_kled_cdev_update(struct work_struct *work) 587{ 588 struct asus_led *led = container_of(work, struct asus_led, work); 589 struct asus_laptop *asus = led->asus; 590 591 asus_kled_set(asus, led->wk); 592} 593 594static enum led_brightness asus_kled_cdev_get(struct led_classdev *led_cdev) 595{ 596 struct asus_led *led = container_of(led_cdev, struct asus_led, led); 597 struct asus_laptop *asus = led->asus; 598 599 return asus_kled_lvl(asus); 600} 601 602static void asus_led_exit(struct asus_laptop *asus) 603{ 604 if (!IS_ERR_OR_NULL(asus->mled.led.dev)) 605 led_classdev_unregister(&asus->mled.led); 606 if (!IS_ERR_OR_NULL(asus->tled.led.dev)) 607 led_classdev_unregister(&asus->tled.led); 608 if (!IS_ERR_OR_NULL(asus->pled.led.dev)) 609 led_classdev_unregister(&asus->pled.led); 610 if (!IS_ERR_OR_NULL(asus->rled.led.dev)) 611 led_classdev_unregister(&asus->rled.led); 612 if (!IS_ERR_OR_NULL(asus->gled.led.dev)) 613 led_classdev_unregister(&asus->gled.led); 614 if (!IS_ERR_OR_NULL(asus->kled.led.dev)) 615 led_classdev_unregister(&asus->kled.led); 616 if (asus->led_workqueue) { 617 destroy_workqueue(asus->led_workqueue); 618 asus->led_workqueue = NULL; 619 } 620} 621 622/* Ugly macro, need to fix that later */ 623static int asus_led_register(struct asus_laptop *asus, 624 struct asus_led *led, 625 const char *name, const char *method) 626{ 627 struct led_classdev *led_cdev = &led->led; 628 629 if (!method || acpi_check_handle(asus->handle, method, NULL)) 630 return 0; /* Led not present */ 631 632 led->asus = asus; 633 led->method = method; 634 635 INIT_WORK(&led->work, asus_led_cdev_update); 636 led_cdev->name = name; 637 led_cdev->brightness_set = asus_led_cdev_set; 638 led_cdev->brightness_get = asus_led_cdev_get; 639 led_cdev->max_brightness = 1; 640 return led_classdev_register(&asus->platform_device->dev, led_cdev); 641} 642 643static int asus_led_init(struct asus_laptop *asus) 644{ 645 int r; 646 647 /* 648 * The Pegatron Lucid has no physical leds, but all methods are 649 * available in the DSDT... 650 */ 651 if (asus->is_pega_lucid) 652 return 0; 653 654 /* 655 * Functions that actually update the LED's are called from a 656 * workqueue. By doing this as separate work rather than when the LED 657 * subsystem asks, we avoid messing with the Asus ACPI stuff during a 658 * potentially bad time, such as a timer interrupt. 659 */ 660 asus->led_workqueue = create_singlethread_workqueue("led_workqueue"); 661 if (!asus->led_workqueue) 662 return -ENOMEM; 663 664 r = asus_led_register(asus, &asus->mled, "asus::mail", METHOD_MLED); 665 if (r) 666 goto error; 667 r = asus_led_register(asus, &asus->tled, "asus::touchpad", METHOD_TLED); 668 if (r) 669 goto error; 670 r = asus_led_register(asus, &asus->rled, "asus::record", METHOD_RLED); 671 if (r) 672 goto error; 673 r = asus_led_register(asus, &asus->pled, "asus::phone", METHOD_PLED); 674 if (r) 675 goto error; 676 r = asus_led_register(asus, &asus->gled, "asus::gaming", METHOD_GLED); 677 if (r) 678 goto error; 679 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL) && 680 !acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_GET, NULL)) { 681 struct asus_led *led = &asus->kled; 682 struct led_classdev *cdev = &led->led; 683 684 led->asus = asus; 685 686 INIT_WORK(&led->work, asus_kled_cdev_update); 687 cdev->name = "asus::kbd_backlight"; 688 cdev->brightness_set = asus_kled_cdev_set; 689 cdev->brightness_get = asus_kled_cdev_get; 690 cdev->max_brightness = 3; 691 r = led_classdev_register(&asus->platform_device->dev, cdev); 692 } 693error: 694 if (r) 695 asus_led_exit(asus); 696 return r; 697} 698 699/* 700 * Backlight device 701 */ 702static int asus_read_brightness(struct backlight_device *bd) 703{ 704 struct asus_laptop *asus = bl_get_data(bd); 705 unsigned long long value; 706 acpi_status rv = AE_OK; 707 708 rv = acpi_evaluate_integer(asus->handle, METHOD_BRIGHTNESS_GET, 709 NULL, &value); 710 if (ACPI_FAILURE(rv)) 711 pr_warn("Error reading brightness\n"); 712 713 return value; 714} 715 716static int asus_set_brightness(struct backlight_device *bd, int value) 717{ 718 struct asus_laptop *asus = bl_get_data(bd); 719 720 if (write_acpi_int(asus->handle, METHOD_BRIGHTNESS_SET, value)) { 721 pr_warn("Error changing brightness\n"); 722 return -EIO; 723 } 724 return 0; 725} 726 727static int update_bl_status(struct backlight_device *bd) 728{ 729 int value = bd->props.brightness; 730 731 return asus_set_brightness(bd, value); 732} 733 734static const struct backlight_ops asusbl_ops = { 735 .get_brightness = asus_read_brightness, 736 .update_status = update_bl_status, 737}; 738 739static int asus_backlight_notify(struct asus_laptop *asus) 740{ 741 struct backlight_device *bd = asus->backlight_device; 742 int old = bd->props.brightness; 743 744 backlight_force_update(bd, BACKLIGHT_UPDATE_HOTKEY); 745 746 return old; 747} 748 749static int asus_backlight_init(struct asus_laptop *asus) 750{ 751 struct backlight_device *bd; 752 struct backlight_properties props; 753 754 if (acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_GET, NULL) || 755 acpi_check_handle(asus->handle, METHOD_BRIGHTNESS_SET, NULL)) 756 return 0; 757 758 memset(&props, 0, sizeof(struct backlight_properties)); 759 props.max_brightness = 15; 760 props.type = BACKLIGHT_PLATFORM; 761 762 bd = backlight_device_register(ASUS_LAPTOP_FILE, 763 &asus->platform_device->dev, asus, 764 &asusbl_ops, &props); 765 if (IS_ERR(bd)) { 766 pr_err("Could not register asus backlight device\n"); 767 asus->backlight_device = NULL; 768 return PTR_ERR(bd); 769 } 770 771 asus->backlight_device = bd; 772 bd->props.brightness = asus_read_brightness(bd); 773 bd->props.power = FB_BLANK_UNBLANK; 774 backlight_update_status(bd); 775 return 0; 776} 777 778static void asus_backlight_exit(struct asus_laptop *asus) 779{ 780 if (asus->backlight_device) 781 backlight_device_unregister(asus->backlight_device); 782 asus->backlight_device = NULL; 783} 784 785/* 786 * Platform device handlers 787 */ 788 789/* 790 * We write our info in page, we begin at offset off and cannot write more 791 * than count bytes. We set eof to 1 if we handle those 2 values. We return the 792 * number of bytes written in page 793 */ 794static ssize_t show_infos(struct device *dev, 795 struct device_attribute *attr, char *page) 796{ 797 struct asus_laptop *asus = dev_get_drvdata(dev); 798 int len = 0; 799 unsigned long long temp; 800 char buf[16]; /* enough for all info */ 801 acpi_status rv = AE_OK; 802 803 /* 804 * We use the easy way, we don't care of off and count, 805 * so we don't set eof to 1 806 */ 807 808 len += sprintf(page, ASUS_LAPTOP_NAME " " ASUS_LAPTOP_VERSION "\n"); 809 len += sprintf(page + len, "Model reference : %s\n", asus->name); 810 /* 811 * The SFUN method probably allows the original driver to get the list 812 * of features supported by a given model. For now, 0x0100 or 0x0800 813 * bit signifies that the laptop is equipped with a Wi-Fi MiniPCI card. 814 * The significance of others is yet to be found. 815 */ 816 rv = acpi_evaluate_integer(asus->handle, "SFUN", NULL, &temp); 817 if (!ACPI_FAILURE(rv)) 818 len += sprintf(page + len, "SFUN value : %#x\n", 819 (uint) temp); 820 /* 821 * The HWRS method return informations about the hardware. 822 * 0x80 bit is for WLAN, 0x100 for Bluetooth. 823 * The significance of others is yet to be found. 824 * If we don't find the method, we assume the device are present. 825 */ 826 rv = acpi_evaluate_integer(asus->handle, "HRWS", NULL, &temp); 827 if (!ACPI_FAILURE(rv)) 828 len += sprintf(page + len, "HRWS value : %#x\n", 829 (uint) temp); 830 /* 831 * Another value for userspace: the ASYM method returns 0x02 for 832 * battery low and 0x04 for battery critical, its readings tend to be 833 * more accurate than those provided by _BST. 834 * Note: since not all the laptops provide this method, errors are 835 * silently ignored. 836 */ 837 rv = acpi_evaluate_integer(asus->handle, "ASYM", NULL, &temp); 838 if (!ACPI_FAILURE(rv)) 839 len += sprintf(page + len, "ASYM value : %#x\n", 840 (uint) temp); 841 if (asus->dsdt_info) { 842 snprintf(buf, 16, "%d", asus->dsdt_info->length); 843 len += sprintf(page + len, "DSDT length : %s\n", buf); 844 snprintf(buf, 16, "%d", asus->dsdt_info->checksum); 845 len += sprintf(page + len, "DSDT checksum : %s\n", buf); 846 snprintf(buf, 16, "%d", asus->dsdt_info->revision); 847 len += sprintf(page + len, "DSDT revision : %s\n", buf); 848 snprintf(buf, 7, "%s", asus->dsdt_info->oem_id); 849 len += sprintf(page + len, "OEM id : %s\n", buf); 850 snprintf(buf, 9, "%s", asus->dsdt_info->oem_table_id); 851 len += sprintf(page + len, "OEM table id : %s\n", buf); 852 snprintf(buf, 16, "%x", asus->dsdt_info->oem_revision); 853 len += sprintf(page + len, "OEM revision : 0x%s\n", buf); 854 snprintf(buf, 5, "%s", asus->dsdt_info->asl_compiler_id); 855 len += sprintf(page + len, "ASL comp vendor id : %s\n", buf); 856 snprintf(buf, 16, "%x", asus->dsdt_info->asl_compiler_revision); 857 len += sprintf(page + len, "ASL comp revision : 0x%s\n", buf); 858 } 859 860 return len; 861} 862 863static int parse_arg(const char *buf, unsigned long count, int *val) 864{ 865 if (!count) 866 return 0; 867 if (count > 31) 868 return -EINVAL; 869 if (sscanf(buf, "%i", val) != 1) 870 return -EINVAL; 871 return count; 872} 873 874static ssize_t sysfs_acpi_set(struct asus_laptop *asus, 875 const char *buf, size_t count, 876 const char *method) 877{ 878 int rv, value; 879 int out = 0; 880 881 rv = parse_arg(buf, count, &value); 882 if (rv > 0) 883 out = value ? 1 : 0; 884 885 if (write_acpi_int(asus->handle, method, value)) 886 return -ENODEV; 887 return rv; 888} 889 890/* 891 * LEDD display 892 */ 893static ssize_t show_ledd(struct device *dev, 894 struct device_attribute *attr, char *buf) 895{ 896 struct asus_laptop *asus = dev_get_drvdata(dev); 897 898 return sprintf(buf, "0x%08x\n", asus->ledd_status); 899} 900 901static ssize_t store_ledd(struct device *dev, struct device_attribute *attr, 902 const char *buf, size_t count) 903{ 904 struct asus_laptop *asus = dev_get_drvdata(dev); 905 int rv, value; 906 907 rv = parse_arg(buf, count, &value); 908 if (rv > 0) { 909 if (write_acpi_int(asus->handle, METHOD_LEDD, value)) { 910 pr_warn("LED display write failed\n"); 911 return -ENODEV; 912 } 913 asus->ledd_status = (u32) value; 914 } 915 return rv; 916} 917 918/* 919 * Wireless 920 */ 921static int asus_wireless_status(struct asus_laptop *asus, int mask) 922{ 923 unsigned long long status; 924 acpi_status rv = AE_OK; 925 926 if (!asus->have_rsts) 927 return (asus->wireless_status & mask) ? 1 : 0; 928 929 rv = acpi_evaluate_integer(asus->handle, METHOD_WL_STATUS, 930 NULL, &status); 931 if (ACPI_FAILURE(rv)) { 932 pr_warn("Error reading Wireless status\n"); 933 return -EINVAL; 934 } 935 return !!(status & mask); 936} 937 938/* 939 * WLAN 940 */ 941static int asus_wlan_set(struct asus_laptop *asus, int status) 942{ 943 if (write_acpi_int(asus->handle, METHOD_WLAN, !!status)) { 944 pr_warn("Error setting wlan status to %d\n", status); 945 return -EIO; 946 } 947 return 0; 948} 949 950static ssize_t show_wlan(struct device *dev, 951 struct device_attribute *attr, char *buf) 952{ 953 struct asus_laptop *asus = dev_get_drvdata(dev); 954 955 return sprintf(buf, "%d\n", asus_wireless_status(asus, WL_RSTS)); 956} 957 958static ssize_t store_wlan(struct device *dev, struct device_attribute *attr, 959 const char *buf, size_t count) 960{ 961 struct asus_laptop *asus = dev_get_drvdata(dev); 962 963 return sysfs_acpi_set(asus, buf, count, METHOD_WLAN); 964} 965 966/* 967 * Bluetooth 968 */ 969static int asus_bluetooth_set(struct asus_laptop *asus, int status) 970{ 971 if (write_acpi_int(asus->handle, METHOD_BLUETOOTH, !!status)) { 972 pr_warn("Error setting bluetooth status to %d\n", status); 973 return -EIO; 974 } 975 return 0; 976} 977 978static ssize_t show_bluetooth(struct device *dev, 979 struct device_attribute *attr, char *buf) 980{ 981 struct asus_laptop *asus = dev_get_drvdata(dev); 982 983 return sprintf(buf, "%d\n", asus_wireless_status(asus, BT_RSTS)); 984} 985 986static ssize_t store_bluetooth(struct device *dev, 987 struct device_attribute *attr, const char *buf, 988 size_t count) 989{ 990 struct asus_laptop *asus = dev_get_drvdata(dev); 991 992 return sysfs_acpi_set(asus, buf, count, METHOD_BLUETOOTH); 993} 994 995/* 996 * Wimax 997 */ 998static int asus_wimax_set(struct asus_laptop *asus, int status) 999{ 1000 if (write_acpi_int(asus->handle, METHOD_WIMAX, !!status)) { 1001 pr_warn("Error setting wimax status to %d\n", status); 1002 return -EIO; 1003 } 1004 return 0; 1005} 1006 1007static ssize_t show_wimax(struct device *dev, 1008 struct device_attribute *attr, char *buf) 1009{ 1010 struct asus_laptop *asus = dev_get_drvdata(dev); 1011 1012 return sprintf(buf, "%d\n", asus_wireless_status(asus, WM_RSTS)); 1013} 1014 1015static ssize_t store_wimax(struct device *dev, 1016 struct device_attribute *attr, const char *buf, 1017 size_t count) 1018{ 1019 struct asus_laptop *asus = dev_get_drvdata(dev); 1020 1021 return sysfs_acpi_set(asus, buf, count, METHOD_WIMAX); 1022} 1023 1024/* 1025 * Wwan 1026 */ 1027static int asus_wwan_set(struct asus_laptop *asus, int status) 1028{ 1029 if (write_acpi_int(asus->handle, METHOD_WWAN, !!status)) { 1030 pr_warn("Error setting wwan status to %d\n", status); 1031 return -EIO; 1032 } 1033 return 0; 1034} 1035 1036static ssize_t show_wwan(struct device *dev, 1037 struct device_attribute *attr, char *buf) 1038{ 1039 struct asus_laptop *asus = dev_get_drvdata(dev); 1040 1041 return sprintf(buf, "%d\n", asus_wireless_status(asus, WW_RSTS)); 1042} 1043 1044static ssize_t store_wwan(struct device *dev, 1045 struct device_attribute *attr, const char *buf, 1046 size_t count) 1047{ 1048 struct asus_laptop *asus = dev_get_drvdata(dev); 1049 1050 return sysfs_acpi_set(asus, buf, count, METHOD_WWAN); 1051} 1052 1053/* 1054 * Display 1055 */ 1056static void asus_set_display(struct asus_laptop *asus, int value) 1057{ 1058 /* no sanity check needed for now */ 1059 if (write_acpi_int(asus->handle, METHOD_SWITCH_DISPLAY, value)) 1060 pr_warn("Error setting display\n"); 1061 return; 1062} 1063 1064/* 1065 * Experimental support for display switching. As of now: 1 should activate 1066 * the LCD output, 2 should do for CRT, 4 for TV-Out and 8 for DVI. 1067 * Any combination (bitwise) of these will suffice. I never actually tested 4 1068 * displays hooked up simultaneously, so be warned. See the acpi4asus README 1069 * for more info. 1070 */ 1071static ssize_t store_disp(struct device *dev, struct device_attribute *attr, 1072 const char *buf, size_t count) 1073{ 1074 struct asus_laptop *asus = dev_get_drvdata(dev); 1075 int rv, value; 1076 1077 rv = parse_arg(buf, count, &value); 1078 if (rv > 0) 1079 asus_set_display(asus, value); 1080 return rv; 1081} 1082 1083/* 1084 * Light Sens 1085 */ 1086static void asus_als_switch(struct asus_laptop *asus, int value) 1087{ 1088 int ret; 1089 1090 if (asus->is_pega_lucid) { 1091 ret = asus_pega_lucid_set(asus, PEGA_ALS, value); 1092 if (!ret) 1093 ret = asus_pega_lucid_set(asus, PEGA_ALS_POWER, value); 1094 } else { 1095 ret = write_acpi_int(asus->handle, METHOD_ALS_CONTROL, value); 1096 } 1097 if (ret) 1098 pr_warning("Error setting light sensor switch\n"); 1099 1100 asus->light_switch = value; 1101} 1102 1103static ssize_t show_lssw(struct device *dev, 1104 struct device_attribute *attr, char *buf) 1105{ 1106 struct asus_laptop *asus = dev_get_drvdata(dev); 1107 1108 return sprintf(buf, "%d\n", asus->light_switch); 1109} 1110 1111static ssize_t store_lssw(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_als_switch(asus, value ? 1 : 0); 1120 1121 return rv; 1122} 1123 1124static void asus_als_level(struct asus_laptop *asus, int value) 1125{ 1126 if (write_acpi_int(asus->handle, METHOD_ALS_LEVEL, value)) 1127 pr_warn("Error setting light sensor level\n"); 1128 asus->light_level = value; 1129} 1130 1131static ssize_t show_lslvl(struct device *dev, 1132 struct device_attribute *attr, char *buf) 1133{ 1134 struct asus_laptop *asus = dev_get_drvdata(dev); 1135 1136 return sprintf(buf, "%d\n", asus->light_level); 1137} 1138 1139static ssize_t store_lslvl(struct device *dev, struct device_attribute *attr, 1140 const char *buf, size_t count) 1141{ 1142 struct asus_laptop *asus = dev_get_drvdata(dev); 1143 int rv, value; 1144 1145 rv = parse_arg(buf, count, &value); 1146 if (rv > 0) { 1147 value = (0 < value) ? ((15 < value) ? 15 : value) : 0; 1148 /* 0 <= value <= 15 */ 1149 asus_als_level(asus, value); 1150 } 1151 1152 return rv; 1153} 1154 1155static int pega_int_read(struct asus_laptop *asus, int arg, int *result) 1156{ 1157 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; 1158 int err = write_acpi_int_ret(asus->handle, METHOD_PEGA_READ, arg, 1159 &buffer); 1160 if (!err) { 1161 union acpi_object *obj = buffer.pointer; 1162 if (obj && obj->type == ACPI_TYPE_INTEGER) 1163 *result = obj->integer.value; 1164 else 1165 err = -EIO; 1166 } 1167 return err; 1168} 1169 1170static ssize_t show_lsvalue(struct device *dev, 1171 struct device_attribute *attr, char *buf) 1172{ 1173 struct asus_laptop *asus = dev_get_drvdata(dev); 1174 int err, hi, lo; 1175 1176 err = pega_int_read(asus, PEGA_READ_ALS_H, &hi); 1177 if (!err) 1178 err = pega_int_read(asus, PEGA_READ_ALS_L, &lo); 1179 if (!err) 1180 return sprintf(buf, "%d\n", 10 * hi + lo); 1181 return err; 1182} 1183 1184/* 1185 * GPS 1186 */ 1187static int asus_gps_status(struct asus_laptop *asus) 1188{ 1189 unsigned long long status; 1190 acpi_status rv = AE_OK; 1191 1192 rv = acpi_evaluate_integer(asus->handle, METHOD_GPS_STATUS, 1193 NULL, &status); 1194 if (ACPI_FAILURE(rv)) { 1195 pr_warn("Error reading GPS status\n"); 1196 return -ENODEV; 1197 } 1198 return !!status; 1199} 1200 1201static int asus_gps_switch(struct asus_laptop *asus, int status) 1202{ 1203 const char *meth = status ? METHOD_GPS_ON : METHOD_GPS_OFF; 1204 1205 if (write_acpi_int(asus->handle, meth, 0x02)) 1206 return -ENODEV; 1207 return 0; 1208} 1209 1210static ssize_t show_gps(struct device *dev, 1211 struct device_attribute *attr, char *buf) 1212{ 1213 struct asus_laptop *asus = dev_get_drvdata(dev); 1214 1215 return sprintf(buf, "%d\n", asus_gps_status(asus)); 1216} 1217 1218static ssize_t store_gps(struct device *dev, struct device_attribute *attr, 1219 const char *buf, size_t count) 1220{ 1221 struct asus_laptop *asus = dev_get_drvdata(dev); 1222 int rv, value; 1223 int ret; 1224 1225 rv = parse_arg(buf, count, &value); 1226 if (rv <= 0) 1227 return -EINVAL; 1228 ret = asus_gps_switch(asus, !!value); 1229 if (ret) 1230 return ret; 1231 rfkill_set_sw_state(asus->gps_rfkill, !value); 1232 return rv; 1233} 1234 1235/* 1236 * rfkill 1237 */ 1238static int asus_gps_rfkill_set(void *data, bool blocked) 1239{ 1240 struct asus_laptop *asus = data; 1241 1242 return asus_gps_switch(asus, !blocked); 1243} 1244 1245static const struct rfkill_ops asus_gps_rfkill_ops = { 1246 .set_block = asus_gps_rfkill_set, 1247}; 1248 1249static void asus_rfkill_exit(struct asus_laptop *asus) 1250{ 1251 if (asus->gps_rfkill) { 1252 rfkill_unregister(asus->gps_rfkill); 1253 rfkill_destroy(asus->gps_rfkill); 1254 asus->gps_rfkill = NULL; 1255 } 1256} 1257 1258static int asus_rfkill_init(struct asus_laptop *asus) 1259{ 1260 int result; 1261 1262 if (acpi_check_handle(asus->handle, METHOD_GPS_ON, NULL) || 1263 acpi_check_handle(asus->handle, METHOD_GPS_OFF, NULL) || 1264 acpi_check_handle(asus->handle, METHOD_GPS_STATUS, NULL)) 1265 return 0; 1266 1267 asus->gps_rfkill = rfkill_alloc("asus-gps", &asus->platform_device->dev, 1268 RFKILL_TYPE_GPS, 1269 &asus_gps_rfkill_ops, asus); 1270 if (!asus->gps_rfkill) 1271 return -EINVAL; 1272 1273 result = rfkill_register(asus->gps_rfkill); 1274 if (result) { 1275 rfkill_destroy(asus->gps_rfkill); 1276 asus->gps_rfkill = NULL; 1277 } 1278 1279 return result; 1280} 1281 1282static int pega_rfkill_set(void *data, bool blocked) 1283{ 1284 struct asus_pega_rfkill *pega_rfk = data; 1285 1286 int ret = asus_pega_lucid_set(pega_rfk->asus, pega_rfk->control_id, !blocked); 1287 pr_warn("Setting rfkill %d, to %d; returned %d\n", pega_rfk->control_id, !blocked, ret); 1288 1289 return ret; 1290} 1291 1292static const struct rfkill_ops pega_rfkill_ops = { 1293 .set_block = pega_rfkill_set, 1294}; 1295 1296static void pega_rfkill_terminate(struct asus_pega_rfkill *pega_rfk) 1297{ 1298 pr_warn("Terminating %d\n", pega_rfk->control_id); 1299 if (pega_rfk->rfkill) { 1300 rfkill_unregister(pega_rfk->rfkill); 1301 rfkill_destroy(pega_rfk->rfkill); 1302 pega_rfk->rfkill = NULL; 1303 } 1304} 1305 1306static void pega_rfkill_exit(struct asus_laptop *asus) 1307{ 1308 pega_rfkill_terminate(&asus->wwanrfk); 1309 pega_rfkill_terminate(&asus->btrfk); 1310 pega_rfkill_terminate(&asus->wlanrfk); 1311} 1312 1313static int pega_rfkill_setup(struct asus_laptop *asus, struct asus_pega_rfkill *pega_rfk, 1314 const char *name, int controlid, int rfkill_type) 1315{ 1316 int result; 1317 1318 pr_warn("Setting up rfk %s, control %d, type %d\n", name, controlid, rfkill_type); 1319 pega_rfk->control_id = controlid; 1320 pega_rfk->asus = asus; 1321 pega_rfk->rfkill = rfkill_alloc(name, &asus->platform_device->dev, 1322 rfkill_type, &pega_rfkill_ops, pega_rfk); 1323 if (!pega_rfk->rfkill) 1324 return -EINVAL; 1325 1326 result = rfkill_register(pega_rfk->rfkill); 1327 if (result) { 1328 rfkill_destroy(pega_rfk->rfkill); 1329 pega_rfk->rfkill = NULL; 1330 } 1331 1332 return result; 1333} 1334 1335static int pega_rfkill_init(struct asus_laptop *asus) 1336{ 1337 int ret = 0; 1338 1339 if(!asus->is_pega_lucid) 1340 return -ENODEV; 1341 1342 ret = pega_rfkill_setup(asus, &asus->wlanrfk, "pega-wlan", PEGA_WLAN, RFKILL_TYPE_WLAN); 1343 if(ret) 1344 return ret; 1345 ret = pega_rfkill_setup(asus, &asus->btrfk, "pega-bt", PEGA_BLUETOOTH, RFKILL_TYPE_BLUETOOTH); 1346 if(ret) 1347 goto err_btrfk; 1348 ret = pega_rfkill_setup(asus, &asus->wwanrfk, "pega-wwan", PEGA_WWAN, RFKILL_TYPE_WWAN); 1349 if(ret) 1350 goto err_wwanrfk; 1351 1352 pr_warn("Pega rfkill init succeeded\n"); 1353 return 0; 1354err_wwanrfk: 1355 pega_rfkill_terminate(&asus->btrfk); 1356err_btrfk: 1357 pega_rfkill_terminate(&asus->wlanrfk); 1358 1359 return ret; 1360} 1361 1362/* 1363 * Input device (i.e. hotkeys) 1364 */ 1365static void asus_input_notify(struct asus_laptop *asus, int event) 1366{ 1367 if (!asus->inputdev) 1368 return ; 1369 if (!sparse_keymap_report_event(asus->inputdev, event, 1, true)) 1370 pr_info("Unknown key %x pressed\n", event); 1371} 1372 1373static int asus_input_init(struct asus_laptop *asus) 1374{ 1375 struct input_dev *input; 1376 int error; 1377 1378 input = input_allocate_device(); 1379 if (!input) { 1380 pr_info("Unable to allocate input device\n"); 1381 return -ENOMEM; 1382 } 1383 input->name = "Asus Laptop extra buttons"; 1384 input->phys = ASUS_LAPTOP_FILE "/input0"; 1385 input->id.bustype = BUS_HOST; 1386 input->dev.parent = &asus->platform_device->dev; 1387 1388 error = sparse_keymap_setup(input, asus_keymap, NULL); 1389 if (error) { 1390 pr_err("Unable to setup input device keymap\n"); 1391 goto err_free_dev; 1392 } 1393 error = input_register_device(input); 1394 if (error) { 1395 pr_info("Unable to register input device\n"); 1396 goto err_free_keymap; 1397 } 1398 1399 asus->inputdev = input; 1400 return 0; 1401 1402err_free_keymap: 1403 sparse_keymap_free(input); 1404err_free_dev: 1405 input_free_device(input); 1406 return error; 1407} 1408 1409static void asus_input_exit(struct asus_laptop *asus) 1410{ 1411 if (asus->inputdev) { 1412 sparse_keymap_free(asus->inputdev); 1413 input_unregister_device(asus->inputdev); 1414 } 1415 asus->inputdev = NULL; 1416} 1417 1418/* 1419 * ACPI driver 1420 */ 1421static void asus_acpi_notify(struct acpi_device *device, u32 event) 1422{ 1423 struct asus_laptop *asus = acpi_driver_data(device); 1424 u16 count; 1425 1426 /* TODO Find a better way to handle events count. */ 1427 count = asus->event_count[event % 128]++; 1428 acpi_bus_generate_proc_event(asus->device, event, count); 1429 acpi_bus_generate_netlink_event(asus->device->pnp.device_class, 1430 dev_name(&asus->device->dev), event, 1431 count); 1432 1433 /* Brightness events are special */ 1434 if (event >= ATKD_BR_MIN && event <= ATKD_BR_MAX) { 1435 1436 /* Ignore them completely if the acpi video driver is used */ 1437 if (asus->backlight_device != NULL) { 1438 /* Update the backlight device. */ 1439 asus_backlight_notify(asus); 1440 } 1441 return ; 1442 } 1443 1444 /* Accelerometer "coarse orientation change" event */ 1445 if (asus->pega_accel_poll && event == 0xEA) { 1446 kobject_uevent(&asus->pega_accel_poll->input->dev.kobj, 1447 KOBJ_CHANGE); 1448 return ; 1449 } 1450 1451 asus_input_notify(asus, event); 1452} 1453 1454static DEVICE_ATTR(infos, S_IRUGO, show_infos, NULL); 1455static DEVICE_ATTR(wlan, S_IRUGO | S_IWUSR, show_wlan, store_wlan); 1456static DEVICE_ATTR(bluetooth, S_IRUGO | S_IWUSR, 1457 show_bluetooth, store_bluetooth); 1458static DEVICE_ATTR(wimax, S_IRUGO | S_IWUSR, show_wimax, store_wimax); 1459static DEVICE_ATTR(wwan, S_IRUGO | S_IWUSR, show_wwan, store_wwan); 1460static DEVICE_ATTR(display, S_IWUSR, NULL, store_disp); 1461static DEVICE_ATTR(ledd, S_IRUGO | S_IWUSR, show_ledd, store_ledd); 1462static DEVICE_ATTR(ls_value, S_IRUGO, show_lsvalue, NULL); 1463static DEVICE_ATTR(ls_level, S_IRUGO | S_IWUSR, show_lslvl, store_lslvl); 1464static DEVICE_ATTR(ls_switch, S_IRUGO | S_IWUSR, show_lssw, store_lssw); 1465static DEVICE_ATTR(gps, S_IRUGO | S_IWUSR, show_gps, store_gps); 1466 1467static struct attribute *asus_attributes[] = { 1468 &dev_attr_infos.attr, 1469 &dev_attr_wlan.attr, 1470 &dev_attr_bluetooth.attr, 1471 &dev_attr_wimax.attr, 1472 &dev_attr_wwan.attr, 1473 &dev_attr_display.attr, 1474 &dev_attr_ledd.attr, 1475 &dev_attr_ls_value.attr, 1476 &dev_attr_ls_level.attr, 1477 &dev_attr_ls_switch.attr, 1478 &dev_attr_gps.attr, 1479 NULL 1480}; 1481 1482static umode_t asus_sysfs_is_visible(struct kobject *kobj, 1483 struct attribute *attr, 1484 int idx) 1485{ 1486 struct device *dev = container_of(kobj, struct device, kobj); 1487 struct platform_device *pdev = to_platform_device(dev); 1488 struct asus_laptop *asus = platform_get_drvdata(pdev); 1489 acpi_handle handle = asus->handle; 1490 bool supported; 1491 1492 if (asus->is_pega_lucid) { 1493 /* no ls_level interface on the Lucid */ 1494 if (attr == &dev_attr_ls_switch.attr) 1495 supported = true; 1496 else if (attr == &dev_attr_ls_level.attr) 1497 supported = false; 1498 else 1499 goto normal; 1500 1501 return supported; 1502 } 1503 1504normal: 1505 if (attr == &dev_attr_wlan.attr) { 1506 supported = !acpi_check_handle(handle, METHOD_WLAN, NULL); 1507 1508 } else if (attr == &dev_attr_bluetooth.attr) { 1509 supported = !acpi_check_handle(handle, METHOD_BLUETOOTH, NULL); 1510 1511 } else if (attr == &dev_attr_display.attr) { 1512 supported = !acpi_check_handle(handle, METHOD_SWITCH_DISPLAY, NULL); 1513 1514 } else if (attr == &dev_attr_wimax.attr) { 1515 supported = 1516 !acpi_check_handle(asus->handle, METHOD_WIMAX, NULL); 1517 1518 } else if (attr == &dev_attr_wwan.attr) { 1519 supported = !acpi_check_handle(asus->handle, METHOD_WWAN, NULL); 1520 1521 } else if (attr == &dev_attr_ledd.attr) { 1522 supported = !acpi_check_handle(handle, METHOD_LEDD, NULL); 1523 1524 } else if (attr == &dev_attr_ls_switch.attr || 1525 attr == &dev_attr_ls_level.attr) { 1526 supported = !acpi_check_handle(handle, METHOD_ALS_CONTROL, NULL) && 1527 !acpi_check_handle(handle, METHOD_ALS_LEVEL, NULL); 1528 } else if (attr == &dev_attr_ls_value.attr) { 1529 supported = asus->is_pega_lucid; 1530 } else if (attr == &dev_attr_gps.attr) { 1531 supported = !acpi_check_handle(handle, METHOD_GPS_ON, NULL) && 1532 !acpi_check_handle(handle, METHOD_GPS_OFF, NULL) && 1533 !acpi_check_handle(handle, METHOD_GPS_STATUS, NULL); 1534 } else { 1535 supported = true; 1536 } 1537 1538 return supported ? attr->mode : 0; 1539} 1540 1541 1542static const struct attribute_group asus_attr_group = { 1543 .is_visible = asus_sysfs_is_visible, 1544 .attrs = asus_attributes, 1545}; 1546 1547static int asus_platform_init(struct asus_laptop *asus) 1548{ 1549 int result; 1550 1551 asus->platform_device = platform_device_alloc(ASUS_LAPTOP_FILE, -1); 1552 if (!asus->platform_device) 1553 return -ENOMEM; 1554 platform_set_drvdata(asus->platform_device, asus); 1555 1556 result = platform_device_add(asus->platform_device); 1557 if (result) 1558 goto fail_platform_device; 1559 1560 result = sysfs_create_group(&asus->platform_device->dev.kobj, 1561 &asus_attr_group); 1562 if (result) 1563 goto fail_sysfs; 1564 1565 return 0; 1566 1567fail_sysfs: 1568 platform_device_del(asus->platform_device); 1569fail_platform_device: 1570 platform_device_put(asus->platform_device); 1571 return result; 1572} 1573 1574static void asus_platform_exit(struct asus_laptop *asus) 1575{ 1576 sysfs_remove_group(&asus->platform_device->dev.kobj, &asus_attr_group); 1577 platform_device_unregister(asus->platform_device); 1578} 1579 1580static struct platform_driver platform_driver = { 1581 .driver = { 1582 .name = ASUS_LAPTOP_FILE, 1583 .owner = THIS_MODULE, 1584 }, 1585}; 1586 1587/* 1588 * This function is used to initialize the context with right values. In this 1589 * method, we can make all the detection we want, and modify the asus_laptop 1590 * struct 1591 */ 1592static int asus_laptop_get_info(struct asus_laptop *asus) 1593{ 1594 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; 1595 union acpi_object *model = NULL; 1596 unsigned long long bsts_result, hwrs_result; 1597 char *string = NULL; 1598 acpi_status status; 1599 1600 /* 1601 * Get DSDT headers early enough to allow for differentiating between 1602 * models, but late enough to allow acpi_bus_register_driver() to fail 1603 * before doing anything ACPI-specific. Should we encounter a machine, 1604 * which needs special handling (i.e. its hotkey device has a different 1605 * HID), this bit will be moved. 1606 */ 1607 status = acpi_get_table(ACPI_SIG_DSDT, 1, &asus->dsdt_info); 1608 if (ACPI_FAILURE(status)) 1609 pr_warn("Couldn't get the DSDT table header\n"); 1610 1611 /* We have to write 0 on init this far for all ASUS models */ 1612 if (write_acpi_int_ret(asus->handle, "INIT", 0, &buffer)) { 1613 pr_err("Hotkey initialization failed\n"); 1614 return -ENODEV; 1615 } 1616 1617 /* This needs to be called for some laptops to init properly */ 1618 status = 1619 acpi_evaluate_integer(asus->handle, "BSTS", NULL, &bsts_result); 1620 if (ACPI_FAILURE(status)) 1621 pr_warn("Error calling BSTS\n"); 1622 else if (bsts_result) 1623 pr_notice("BSTS called, 0x%02x returned\n", 1624 (uint) bsts_result); 1625 1626 /* This too ... */ 1627 if (write_acpi_int(asus->handle, "CWAP", wapf)) 1628 pr_err("Error calling CWAP(%d)\n", wapf); 1629 /* 1630 * Try to match the object returned by INIT to the specific model. 1631 * Handle every possible object (or the lack of thereof) the DSDT 1632 * writers might throw at us. When in trouble, we pass NULL to 1633 * asus_model_match() and try something completely different. 1634 */ 1635 if (buffer.pointer) { 1636 model = buffer.pointer; 1637 switch (model->type) { 1638 case ACPI_TYPE_STRING: 1639 string = model->string.pointer; 1640 break; 1641 case ACPI_TYPE_BUFFER: 1642 string = model->buffer.pointer; 1643 break; 1644 default: 1645 string = ""; 1646 break; 1647 } 1648 } 1649 asus->name = kstrdup(string, GFP_KERNEL); 1650 if (!asus->name) { 1651 kfree(buffer.pointer); 1652 return -ENOMEM; 1653 } 1654 1655 if (*string) 1656 pr_notice(" %s model detected\n", string); 1657 1658 /* 1659 * The HWRS method return informations about the hardware. 1660 * 0x80 bit is for WLAN, 0x100 for Bluetooth, 1661 * 0x40 for WWAN, 0x10 for WIMAX. 1662 * The significance of others is yet to be found. 1663 */ 1664 status = 1665 acpi_evaluate_integer(asus->handle, "HRWS", NULL, &hwrs_result); 1666 if (!ACPI_FAILURE(status)) 1667 pr_notice(" HRWS returned %x", (int)hwrs_result); 1668 1669 if (!acpi_check_handle(asus->handle, METHOD_WL_STATUS, NULL)) 1670 asus->have_rsts = true; 1671 1672 kfree(model); 1673 1674 return AE_OK; 1675} 1676 1677static int __devinit asus_acpi_init(struct asus_laptop *asus) 1678{ 1679 int result = 0; 1680 1681 result = acpi_bus_get_status(asus->device); 1682 if (result) 1683 return result; 1684 if (!asus->device->status.present) { 1685 pr_err("Hotkey device not present, aborting\n"); 1686 return -ENODEV; 1687 } 1688 1689 result = asus_laptop_get_info(asus); 1690 if (result) 1691 return result; 1692 1693 /* WLED and BLED are on by default */ 1694 if (bluetooth_status >= 0) 1695 asus_bluetooth_set(asus, !!bluetooth_status); 1696 1697 if (wlan_status >= 0) 1698 asus_wlan_set(asus, !!wlan_status); 1699 1700 if (wimax_status >= 0) 1701 asus_wimax_set(asus, !!wimax_status); 1702 1703 if (wwan_status >= 0) 1704 asus_wwan_set(asus, !!wwan_status); 1705 1706 /* Keyboard Backlight is on by default */ 1707 if (!acpi_check_handle(asus->handle, METHOD_KBD_LIGHT_SET, NULL)) 1708 asus_kled_set(asus, 1); 1709 1710 /* LED display is off by default */ 1711 asus->ledd_status = 0xFFF; 1712 1713 /* Set initial values of light sensor and level */ 1714 asus->light_switch = !!als_status; 1715 asus->light_level = 5; /* level 5 for sensor sensitivity */ 1716 1717 if (asus->is_pega_lucid) { 1718 asus_als_switch(asus, asus->light_switch); 1719 } else if (!acpi_check_handle(asus->handle, METHOD_ALS_CONTROL, NULL) && 1720 !acpi_check_handle(asus->handle, METHOD_ALS_LEVEL, NULL)) { 1721 asus_als_switch(asus, asus->light_switch); 1722 asus_als_level(asus, asus->light_level); 1723 } 1724 1725 return result; 1726} 1727 1728static void __devinit asus_dmi_check(void) 1729{ 1730 const char *model; 1731 1732 model = dmi_get_system_info(DMI_PRODUCT_NAME); 1733 if (!model) 1734 return; 1735 1736 /* On L1400B WLED control the sound card, don't mess with it ... */ 1737 if (strncmp(model, "L1400B", 6) == 0) { 1738 wlan_status = -1; 1739 } 1740} 1741 1742static bool asus_device_present; 1743 1744static int __devinit asus_acpi_add(struct acpi_device *device) 1745{ 1746 struct asus_laptop *asus; 1747 int result; 1748 1749 pr_notice("Asus Laptop Support version %s\n", 1750 ASUS_LAPTOP_VERSION); 1751 asus = kzalloc(sizeof(struct asus_laptop), GFP_KERNEL); 1752 if (!asus) 1753 return -ENOMEM; 1754 asus->handle = device->handle; 1755 strcpy(acpi_device_name(device), ASUS_LAPTOP_DEVICE_NAME); 1756 strcpy(acpi_device_class(device), ASUS_LAPTOP_CLASS); 1757 device->driver_data = asus; 1758 asus->device = device; 1759 1760 asus_dmi_check(); 1761 1762 result = asus_acpi_init(asus); 1763 if (result) 1764 goto fail_platform; 1765 1766 /* 1767 * Need platform type detection first, then the platform 1768 * device. It is used as a parent for the sub-devices below. 1769 */ 1770 asus->is_pega_lucid = asus_check_pega_lucid(asus); 1771 result = asus_platform_init(asus); 1772 if (result) 1773 goto fail_platform; 1774 1775 if (!acpi_video_backlight_support()) { 1776 result = asus_backlight_init(asus); 1777 if (result) 1778 goto fail_backlight; 1779 } else 1780 pr_info("Backlight controlled by ACPI video driver\n"); 1781 1782 result = asus_input_init(asus); 1783 if (result) 1784 goto fail_input; 1785 1786 result = asus_led_init(asus); 1787 if (result) 1788 goto fail_led; 1789 1790 result = asus_rfkill_init(asus); 1791 if (result) 1792 goto fail_rfkill; 1793 1794 result = pega_accel_init(asus); 1795 if (result && result != -ENODEV) 1796 goto fail_pega_accel; 1797 1798 result = pega_rfkill_init(asus); 1799 if (result && result != -ENODEV) 1800 goto fail_pega_rfkill; 1801 1802 asus_device_present = true; 1803 return 0; 1804 1805fail_pega_rfkill: 1806 pega_accel_exit(asus); 1807fail_pega_accel: 1808 asus_rfkill_exit(asus); 1809fail_rfkill: 1810 asus_led_exit(asus); 1811fail_led: 1812 asus_input_exit(asus); 1813fail_input: 1814 asus_backlight_exit(asus); 1815fail_backlight: 1816 asus_platform_exit(asus); 1817fail_platform: 1818 kfree(asus->name); 1819 kfree(asus); 1820 1821 return result; 1822} 1823 1824static int asus_acpi_remove(struct acpi_device *device, int type) 1825{ 1826 struct asus_laptop *asus = acpi_driver_data(device); 1827 1828 asus_backlight_exit(asus); 1829 asus_rfkill_exit(asus); 1830 asus_led_exit(asus); 1831 asus_input_exit(asus); 1832 pega_accel_exit(asus); 1833 pega_rfkill_exit(asus); 1834 asus_platform_exit(asus); 1835 1836 kfree(asus->name); 1837 kfree(asus); 1838 return 0; 1839} 1840 1841static const struct acpi_device_id asus_device_ids[] = { 1842 {"ATK0100", 0}, 1843 {"ATK0101", 0}, 1844 {"", 0}, 1845}; 1846MODULE_DEVICE_TABLE(acpi, asus_device_ids); 1847 1848static struct acpi_driver asus_acpi_driver = { 1849 .name = ASUS_LAPTOP_NAME, 1850 .class = ASUS_LAPTOP_CLASS, 1851 .owner = THIS_MODULE, 1852 .ids = asus_device_ids, 1853 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, 1854 .ops = { 1855 .add = asus_acpi_add, 1856 .remove = asus_acpi_remove, 1857 .notify = asus_acpi_notify, 1858 }, 1859}; 1860 1861static int __init asus_laptop_init(void) 1862{ 1863 int result; 1864 1865 result = platform_driver_register(&platform_driver); 1866 if (result < 0) 1867 return result; 1868 1869 result = acpi_bus_register_driver(&asus_acpi_driver); 1870 if (result < 0) 1871 goto fail_acpi_driver; 1872 if (!asus_device_present) { 1873 result = -ENODEV; 1874 goto fail_no_device; 1875 } 1876 return 0; 1877 1878fail_no_device: 1879 acpi_bus_unregister_driver(&asus_acpi_driver); 1880fail_acpi_driver: 1881 platform_driver_unregister(&platform_driver); 1882 return result; 1883} 1884 1885static void __exit asus_laptop_exit(void) 1886{ 1887 acpi_bus_unregister_driver(&asus_acpi_driver); 1888 platform_driver_unregister(&platform_driver); 1889} 1890 1891module_init(asus_laptop_init); 1892module_exit(asus_laptop_exit); 1893