1 /* 2 * toshiba_acpi.c - Toshiba Laptop ACPI Extras 3 * 4 * Copyright (C) 2002-2004 John Belmonte 5 * Copyright (C) 2008 Philip Langdale 6 * Copyright (C) 2010 Pierre Ducroquet 7 * Copyright (C) 2014-2016 Azael Avalos 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 * The full GNU General Public License is included in this distribution in 20 * the file called "COPYING". 21 * 22 * The devolpment page for this driver is located at 23 * http://memebeam.org/toys/ToshibaAcpiDriver. 24 * 25 * Credits: 26 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse 27 * engineering the Windows drivers 28 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5 29 * Rob Miller - TV out and hotkeys help 30 */ 31 32 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 33 34 #define TOSHIBA_ACPI_VERSION "0.24" 35 #define PROC_INTERFACE_VERSION 1 36 37 #include <linux/kernel.h> 38 #include <linux/module.h> 39 #include <linux/moduleparam.h> 40 #include <linux/init.h> 41 #include <linux/types.h> 42 #include <linux/proc_fs.h> 43 #include <linux/seq_file.h> 44 #include <linux/backlight.h> 45 #include <linux/input.h> 46 #include <linux/input/sparse-keymap.h> 47 #include <linux/leds.h> 48 #include <linux/slab.h> 49 #include <linux/workqueue.h> 50 #include <linux/i8042.h> 51 #include <linux/acpi.h> 52 #include <linux/dmi.h> 53 #include <linux/uaccess.h> 54 #include <linux/miscdevice.h> 55 #include <linux/rfkill.h> 56 #include <linux/iio/iio.h> 57 #include <linux/toshiba.h> 58 #include <acpi/video.h> 59 60 MODULE_AUTHOR("John Belmonte"); 61 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver"); 62 MODULE_LICENSE("GPL"); 63 64 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100" 65 66 /* Scan code for Fn key on TOS1900 models */ 67 #define TOS1900_FN_SCAN 0x6e 68 69 /* Toshiba ACPI method paths */ 70 #define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX" 71 72 /* 73 * The Toshiba configuration interface is composed of the HCI and the SCI, 74 * which are defined as follows: 75 * 76 * HCI is Toshiba's "Hardware Control Interface" which is supposed to 77 * be uniform across all their models. Ideally we would just call 78 * dedicated ACPI methods instead of using this primitive interface. 79 * However the ACPI methods seem to be incomplete in some areas (for 80 * example they allow setting, but not reading, the LCD brightness value), 81 * so this is still useful. 82 * 83 * SCI stands for "System Configuration Interface" which aim is to 84 * conceal differences in hardware between different models. 85 */ 86 87 #define TCI_WORDS 6 88 89 /* Operations */ 90 #define HCI_SET 0xff00 91 #define HCI_GET 0xfe00 92 #define SCI_OPEN 0xf100 93 #define SCI_CLOSE 0xf200 94 #define SCI_GET 0xf300 95 #define SCI_SET 0xf400 96 97 /* Return codes */ 98 #define TOS_SUCCESS 0x0000 99 #define TOS_SUCCESS2 0x0001 100 #define TOS_OPEN_CLOSE_OK 0x0044 101 #define TOS_FAILURE 0x1000 102 #define TOS_NOT_SUPPORTED 0x8000 103 #define TOS_ALREADY_OPEN 0x8100 104 #define TOS_NOT_OPENED 0x8200 105 #define TOS_INPUT_DATA_ERROR 0x8300 106 #define TOS_WRITE_PROTECTED 0x8400 107 #define TOS_NOT_PRESENT 0x8600 108 #define TOS_FIFO_EMPTY 0x8c00 109 #define TOS_DATA_NOT_AVAILABLE 0x8d20 110 #define TOS_NOT_INITIALIZED 0x8d50 111 #define TOS_NOT_INSTALLED 0x8e00 112 113 /* Registers */ 114 #define HCI_FAN 0x0004 115 #define HCI_TR_BACKLIGHT 0x0005 116 #define HCI_SYSTEM_EVENT 0x0016 117 #define HCI_VIDEO_OUT 0x001c 118 #define HCI_HOTKEY_EVENT 0x001e 119 #define HCI_LCD_BRIGHTNESS 0x002a 120 #define HCI_WIRELESS 0x0056 121 #define HCI_ACCELEROMETER 0x006d 122 #define HCI_COOLING_METHOD 0x007f 123 #define HCI_KBD_ILLUMINATION 0x0095 124 #define HCI_ECO_MODE 0x0097 125 #define HCI_ACCELEROMETER2 0x00a6 126 #define HCI_SYSTEM_INFO 0xc000 127 #define SCI_PANEL_POWER_ON 0x010d 128 #define SCI_ILLUMINATION 0x014e 129 #define SCI_USB_SLEEP_CHARGE 0x0150 130 #define SCI_KBD_ILLUM_STATUS 0x015c 131 #define SCI_USB_SLEEP_MUSIC 0x015e 132 #define SCI_USB_THREE 0x0169 133 #define SCI_TOUCHPAD 0x050e 134 #define SCI_KBD_FUNCTION_KEYS 0x0522 135 136 /* Field definitions */ 137 #define HCI_ACCEL_MASK 0x7fff 138 #define HCI_ACCEL_DIRECTION_MASK 0x8000 139 #define HCI_HOTKEY_DISABLE 0x0b 140 #define HCI_HOTKEY_ENABLE 0x09 141 #define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10 142 #define HCI_LCD_BRIGHTNESS_BITS 3 143 #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS) 144 #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS) 145 #define HCI_MISC_SHIFT 0x10 146 #define HCI_SYSTEM_TYPE1 0x10 147 #define HCI_SYSTEM_TYPE2 0x11 148 #define HCI_VIDEO_OUT_LCD 0x1 149 #define HCI_VIDEO_OUT_CRT 0x2 150 #define HCI_VIDEO_OUT_TV 0x4 151 #define SCI_KBD_MODE_MASK 0x1f 152 #define SCI_KBD_MODE_FNZ 0x1 153 #define SCI_KBD_MODE_AUTO 0x2 154 #define SCI_KBD_MODE_ON 0x8 155 #define SCI_KBD_MODE_OFF 0x10 156 #define SCI_KBD_TIME_MAX 0x3c001a 157 #define HCI_WIRELESS_STATUS 0x1 158 #define HCI_WIRELESS_WWAN 0x3 159 #define HCI_WIRELESS_WWAN_STATUS 0x2000 160 #define HCI_WIRELESS_WWAN_POWER 0x4000 161 #define SCI_USB_CHARGE_MODE_MASK 0xff 162 #define SCI_USB_CHARGE_DISABLED 0x00 163 #define SCI_USB_CHARGE_ALTERNATE 0x09 164 #define SCI_USB_CHARGE_TYPICAL 0x11 165 #define SCI_USB_CHARGE_AUTO 0x21 166 #define SCI_USB_CHARGE_BAT_MASK 0x7 167 #define SCI_USB_CHARGE_BAT_LVL_OFF 0x1 168 #define SCI_USB_CHARGE_BAT_LVL_ON 0x4 169 #define SCI_USB_CHARGE_BAT_LVL 0x0200 170 #define SCI_USB_CHARGE_RAPID_DSP 0x0300 171 172 struct toshiba_acpi_dev { 173 struct acpi_device *acpi_dev; 174 const char *method_hci; 175 struct input_dev *hotkey_dev; 176 struct work_struct hotkey_work; 177 struct backlight_device *backlight_dev; 178 struct led_classdev led_dev; 179 struct led_classdev kbd_led; 180 struct led_classdev eco_led; 181 struct miscdevice miscdev; 182 struct rfkill *wwan_rfk; 183 struct iio_dev *indio_dev; 184 185 int force_fan; 186 int last_key_event; 187 int key_event_valid; 188 int kbd_type; 189 int kbd_mode; 190 int kbd_time; 191 int usbsc_bat_level; 192 int usbsc_mode_base; 193 int hotkey_event_type; 194 int max_cooling_method; 195 196 unsigned int illumination_supported:1; 197 unsigned int video_supported:1; 198 unsigned int fan_supported:1; 199 unsigned int system_event_supported:1; 200 unsigned int ntfy_supported:1; 201 unsigned int info_supported:1; 202 unsigned int tr_backlight_supported:1; 203 unsigned int kbd_illum_supported:1; 204 unsigned int touchpad_supported:1; 205 unsigned int eco_supported:1; 206 unsigned int accelerometer_supported:1; 207 unsigned int usb_sleep_charge_supported:1; 208 unsigned int usb_rapid_charge_supported:1; 209 unsigned int usb_sleep_music_supported:1; 210 unsigned int kbd_function_keys_supported:1; 211 unsigned int panel_power_on_supported:1; 212 unsigned int usb_three_supported:1; 213 unsigned int wwan_supported:1; 214 unsigned int cooling_method_supported:1; 215 unsigned int sysfs_created:1; 216 unsigned int special_functions; 217 218 bool kbd_event_generated; 219 bool kbd_led_registered; 220 bool illumination_led_registered; 221 bool eco_led_registered; 222 bool killswitch; 223 }; 224 225 static struct toshiba_acpi_dev *toshiba_acpi; 226 227 static bool disable_hotkeys; 228 module_param(disable_hotkeys, bool, 0444); 229 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation"); 230 231 static const struct acpi_device_id toshiba_device_ids[] = { 232 {"TOS6200", 0}, 233 {"TOS6207", 0}, 234 {"TOS6208", 0}, 235 {"TOS1900", 0}, 236 {"", 0}, 237 }; 238 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids); 239 240 static const struct key_entry toshiba_acpi_keymap[] = { 241 { KE_KEY, 0x9e, { KEY_RFKILL } }, 242 { KE_KEY, 0x101, { KEY_MUTE } }, 243 { KE_KEY, 0x102, { KEY_ZOOMOUT } }, 244 { KE_KEY, 0x103, { KEY_ZOOMIN } }, 245 { KE_KEY, 0x10f, { KEY_TAB } }, 246 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } }, 247 { KE_KEY, 0x139, { KEY_ZOOMRESET } }, 248 { KE_KEY, 0x13b, { KEY_COFFEE } }, 249 { KE_KEY, 0x13c, { KEY_BATTERY } }, 250 { KE_KEY, 0x13d, { KEY_SLEEP } }, 251 { KE_KEY, 0x13e, { KEY_SUSPEND } }, 252 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } }, 253 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } }, 254 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } }, 255 { KE_KEY, 0x142, { KEY_WLAN } }, 256 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } }, 257 { KE_KEY, 0x17f, { KEY_FN } }, 258 { KE_KEY, 0xb05, { KEY_PROG2 } }, 259 { KE_KEY, 0xb06, { KEY_WWW } }, 260 { KE_KEY, 0xb07, { KEY_MAIL } }, 261 { KE_KEY, 0xb30, { KEY_STOP } }, 262 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } }, 263 { KE_KEY, 0xb32, { KEY_NEXTSONG } }, 264 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } }, 265 { KE_KEY, 0xb5a, { KEY_MEDIA } }, 266 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */ 267 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */ 268 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */ 269 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */ 270 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */ 271 { KE_END, 0 }, 272 }; 273 274 static const struct key_entry toshiba_acpi_alt_keymap[] = { 275 { KE_KEY, 0x102, { KEY_ZOOMOUT } }, 276 { KE_KEY, 0x103, { KEY_ZOOMIN } }, 277 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } }, 278 { KE_KEY, 0x139, { KEY_ZOOMRESET } }, 279 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } }, 280 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } }, 281 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } }, 282 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } }, 283 { KE_KEY, 0x157, { KEY_MUTE } }, 284 { KE_KEY, 0x158, { KEY_WLAN } }, 285 { KE_END, 0 }, 286 }; 287 288 /* 289 * List of models which have a broken acpi-video backlight interface and thus 290 * need to use the toshiba (vendor) interface instead. 291 */ 292 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = { 293 {} 294 }; 295 296 /* 297 * Utility 298 */ 299 300 static inline void _set_bit(u32 *word, u32 mask, int value) 301 { 302 *word = (*word & ~mask) | (mask * value); 303 } 304 305 /* 306 * ACPI interface wrappers 307 */ 308 309 static int write_acpi_int(const char *methodName, int val) 310 { 311 acpi_status status; 312 313 status = acpi_execute_simple_method(NULL, (char *)methodName, val); 314 return (status == AE_OK) ? 0 : -EIO; 315 } 316 317 /* 318 * Perform a raw configuration call. Here we don't care about input or output 319 * buffer format. 320 */ 321 static acpi_status tci_raw(struct toshiba_acpi_dev *dev, 322 const u32 in[TCI_WORDS], u32 out[TCI_WORDS]) 323 { 324 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1]; 325 struct acpi_object_list params; 326 struct acpi_buffer results; 327 acpi_status status; 328 int i; 329 330 params.count = TCI_WORDS; 331 params.pointer = in_objs; 332 for (i = 0; i < TCI_WORDS; ++i) { 333 in_objs[i].type = ACPI_TYPE_INTEGER; 334 in_objs[i].integer.value = in[i]; 335 } 336 337 results.length = sizeof(out_objs); 338 results.pointer = out_objs; 339 340 status = acpi_evaluate_object(dev->acpi_dev->handle, 341 (char *)dev->method_hci, ¶ms, 342 &results); 343 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) { 344 for (i = 0; i < out_objs->package.count; ++i) 345 out[i] = out_objs->package.elements[i].integer.value; 346 } 347 348 return status; 349 } 350 351 /* 352 * Common hci tasks 353 * 354 * In addition to the ACPI status, the HCI system returns a result which 355 * may be useful (such as "not supported"). 356 */ 357 358 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1) 359 { 360 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 }; 361 u32 out[TCI_WORDS]; 362 acpi_status status = tci_raw(dev, in, out); 363 364 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE; 365 } 366 367 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1) 368 { 369 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 }; 370 u32 out[TCI_WORDS]; 371 acpi_status status = tci_raw(dev, in, out); 372 373 if (ACPI_FAILURE(status)) 374 return TOS_FAILURE; 375 376 *out1 = out[2]; 377 378 return out[0]; 379 } 380 381 /* 382 * Common sci tasks 383 */ 384 385 static int sci_open(struct toshiba_acpi_dev *dev) 386 { 387 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 }; 388 u32 out[TCI_WORDS]; 389 acpi_status status = tci_raw(dev, in, out); 390 391 if (ACPI_FAILURE(status)) { 392 pr_err("ACPI call to open SCI failed\n"); 393 return 0; 394 } 395 396 if (out[0] == TOS_OPEN_CLOSE_OK) { 397 return 1; 398 } else if (out[0] == TOS_ALREADY_OPEN) { 399 pr_info("Toshiba SCI already opened\n"); 400 return 1; 401 } else if (out[0] == TOS_NOT_SUPPORTED) { 402 /* 403 * Some BIOSes do not have the SCI open/close functions 404 * implemented and return 0x8000 (Not Supported), failing to 405 * register some supported features. 406 * 407 * Simply return 1 if we hit those affected laptops to make the 408 * supported features work. 409 * 410 * In the case that some laptops really do not support the SCI, 411 * all the SCI dependent functions check for TOS_NOT_SUPPORTED, 412 * and thus, not registering support for the queried feature. 413 */ 414 return 1; 415 } else if (out[0] == TOS_NOT_PRESENT) { 416 pr_info("Toshiba SCI is not present\n"); 417 } 418 419 return 0; 420 } 421 422 static void sci_close(struct toshiba_acpi_dev *dev) 423 { 424 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 }; 425 u32 out[TCI_WORDS]; 426 acpi_status status = tci_raw(dev, in, out); 427 428 if (ACPI_FAILURE(status)) { 429 pr_err("ACPI call to close SCI failed\n"); 430 return; 431 } 432 433 if (out[0] == TOS_OPEN_CLOSE_OK) 434 return; 435 else if (out[0] == TOS_NOT_OPENED) 436 pr_info("Toshiba SCI not opened\n"); 437 else if (out[0] == TOS_NOT_PRESENT) 438 pr_info("Toshiba SCI is not present\n"); 439 } 440 441 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1) 442 { 443 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 }; 444 u32 out[TCI_WORDS]; 445 acpi_status status = tci_raw(dev, in, out); 446 447 if (ACPI_FAILURE(status)) 448 return TOS_FAILURE; 449 450 *out1 = out[2]; 451 452 return out[0]; 453 } 454 455 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1) 456 { 457 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 }; 458 u32 out[TCI_WORDS]; 459 acpi_status status = tci_raw(dev, in, out); 460 461 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE; 462 } 463 464 /* Illumination support */ 465 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev) 466 { 467 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 }; 468 u32 out[TCI_WORDS]; 469 acpi_status status; 470 471 dev->illumination_supported = 0; 472 dev->illumination_led_registered = false; 473 474 if (!sci_open(dev)) 475 return; 476 477 status = tci_raw(dev, in, out); 478 sci_close(dev); 479 if (ACPI_FAILURE(status)) { 480 pr_err("ACPI call to query Illumination support failed\n"); 481 return; 482 } 483 484 if (out[0] != TOS_SUCCESS) 485 return; 486 487 dev->illumination_supported = 1; 488 } 489 490 static void toshiba_illumination_set(struct led_classdev *cdev, 491 enum led_brightness brightness) 492 { 493 struct toshiba_acpi_dev *dev = container_of(cdev, 494 struct toshiba_acpi_dev, led_dev); 495 u32 result; 496 u32 state; 497 498 /* First request : initialize communication. */ 499 if (!sci_open(dev)) 500 return; 501 502 /* Switch the illumination on/off */ 503 state = brightness ? 1 : 0; 504 result = sci_write(dev, SCI_ILLUMINATION, state); 505 sci_close(dev); 506 if (result == TOS_FAILURE) 507 pr_err("ACPI call for illumination failed\n"); 508 } 509 510 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev) 511 { 512 struct toshiba_acpi_dev *dev = container_of(cdev, 513 struct toshiba_acpi_dev, led_dev); 514 u32 result; 515 u32 state; 516 517 /* First request : initialize communication. */ 518 if (!sci_open(dev)) 519 return LED_OFF; 520 521 /* Check the illumination */ 522 result = sci_read(dev, SCI_ILLUMINATION, &state); 523 sci_close(dev); 524 if (result == TOS_FAILURE) { 525 pr_err("ACPI call for illumination failed\n"); 526 return LED_OFF; 527 } else if (result != TOS_SUCCESS) { 528 return LED_OFF; 529 } 530 531 return state ? LED_FULL : LED_OFF; 532 } 533 534 /* KBD Illumination */ 535 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev) 536 { 537 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 }; 538 u32 out[TCI_WORDS]; 539 acpi_status status; 540 541 dev->kbd_illum_supported = 0; 542 dev->kbd_led_registered = false; 543 dev->kbd_event_generated = false; 544 545 if (!sci_open(dev)) 546 return; 547 548 status = tci_raw(dev, in, out); 549 sci_close(dev); 550 if (ACPI_FAILURE(status)) { 551 pr_err("ACPI call to query kbd illumination support failed\n"); 552 return; 553 } 554 555 if (out[0] != TOS_SUCCESS) 556 return; 557 558 /* 559 * Check for keyboard backlight timeout max value, 560 * previous kbd backlight implementation set this to 561 * 0x3c0003, and now the new implementation set this 562 * to 0x3c001a, use this to distinguish between them. 563 */ 564 if (out[3] == SCI_KBD_TIME_MAX) 565 dev->kbd_type = 2; 566 else 567 dev->kbd_type = 1; 568 /* Get the current keyboard backlight mode */ 569 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK; 570 /* Get the current time (1-60 seconds) */ 571 dev->kbd_time = out[2] >> HCI_MISC_SHIFT; 572 /* Flag as supported */ 573 dev->kbd_illum_supported = 1; 574 } 575 576 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time) 577 { 578 u32 result; 579 580 if (!sci_open(dev)) 581 return -EIO; 582 583 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time); 584 sci_close(dev); 585 if (result == TOS_FAILURE) 586 pr_err("ACPI call to set KBD backlight status failed\n"); 587 else if (result == TOS_NOT_SUPPORTED) 588 return -ENODEV; 589 590 return result == TOS_SUCCESS ? 0 : -EIO; 591 } 592 593 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time) 594 { 595 u32 result; 596 597 if (!sci_open(dev)) 598 return -EIO; 599 600 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time); 601 sci_close(dev); 602 if (result == TOS_FAILURE) 603 pr_err("ACPI call to get KBD backlight status failed\n"); 604 else if (result == TOS_NOT_SUPPORTED) 605 return -ENODEV; 606 607 return result == TOS_SUCCESS ? 0 : -EIO; 608 } 609 610 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev) 611 { 612 struct toshiba_acpi_dev *dev = container_of(cdev, 613 struct toshiba_acpi_dev, kbd_led); 614 u32 result; 615 u32 state; 616 617 /* Check the keyboard backlight state */ 618 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state); 619 if (result == TOS_FAILURE) { 620 pr_err("ACPI call to get the keyboard backlight failed\n"); 621 return LED_OFF; 622 } else if (result != TOS_SUCCESS) { 623 return LED_OFF; 624 } 625 626 return state ? LED_FULL : LED_OFF; 627 } 628 629 static void toshiba_kbd_backlight_set(struct led_classdev *cdev, 630 enum led_brightness brightness) 631 { 632 struct toshiba_acpi_dev *dev = container_of(cdev, 633 struct toshiba_acpi_dev, kbd_led); 634 u32 result; 635 u32 state; 636 637 /* Set the keyboard backlight state */ 638 state = brightness ? 1 : 0; 639 result = hci_write(dev, HCI_KBD_ILLUMINATION, state); 640 if (result == TOS_FAILURE) 641 pr_err("ACPI call to set KBD Illumination mode failed\n"); 642 } 643 644 /* TouchPad support */ 645 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state) 646 { 647 u32 result; 648 649 if (!sci_open(dev)) 650 return -EIO; 651 652 result = sci_write(dev, SCI_TOUCHPAD, state); 653 sci_close(dev); 654 if (result == TOS_FAILURE) 655 pr_err("ACPI call to set the touchpad failed\n"); 656 else if (result == TOS_NOT_SUPPORTED) 657 return -ENODEV; 658 659 return result == TOS_SUCCESS ? 0 : -EIO; 660 } 661 662 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state) 663 { 664 u32 result; 665 666 if (!sci_open(dev)) 667 return -EIO; 668 669 result = sci_read(dev, SCI_TOUCHPAD, state); 670 sci_close(dev); 671 if (result == TOS_FAILURE) 672 pr_err("ACPI call to query the touchpad failed\n"); 673 else if (result == TOS_NOT_SUPPORTED) 674 return -ENODEV; 675 676 return result == TOS_SUCCESS ? 0 : -EIO; 677 } 678 679 /* Eco Mode support */ 680 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev) 681 { 682 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 }; 683 u32 out[TCI_WORDS]; 684 acpi_status status; 685 686 dev->eco_supported = 0; 687 dev->eco_led_registered = false; 688 689 status = tci_raw(dev, in, out); 690 if (ACPI_FAILURE(status)) { 691 pr_err("ACPI call to get ECO led failed\n"); 692 return; 693 } 694 695 if (out[0] == TOS_INPUT_DATA_ERROR) { 696 /* 697 * If we receive 0x8300 (Input Data Error), it means that the 698 * LED device is present, but that we just screwed the input 699 * parameters. 700 * 701 * Let's query the status of the LED to see if we really have a 702 * success response, indicating the actual presense of the LED, 703 * bail out otherwise. 704 */ 705 in[3] = 1; 706 status = tci_raw(dev, in, out); 707 if (ACPI_FAILURE(status)) { 708 pr_err("ACPI call to get ECO led failed\n"); 709 return; 710 } 711 712 if (out[0] != TOS_SUCCESS) 713 return; 714 715 dev->eco_supported = 1; 716 } 717 } 718 719 static enum led_brightness 720 toshiba_eco_mode_get_status(struct led_classdev *cdev) 721 { 722 struct toshiba_acpi_dev *dev = container_of(cdev, 723 struct toshiba_acpi_dev, eco_led); 724 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 }; 725 u32 out[TCI_WORDS]; 726 acpi_status status; 727 728 status = tci_raw(dev, in, out); 729 if (ACPI_FAILURE(status)) { 730 pr_err("ACPI call to get ECO led failed\n"); 731 return LED_OFF; 732 } 733 734 if (out[0] != TOS_SUCCESS) 735 return LED_OFF; 736 737 return out[2] ? LED_FULL : LED_OFF; 738 } 739 740 static void toshiba_eco_mode_set_status(struct led_classdev *cdev, 741 enum led_brightness brightness) 742 { 743 struct toshiba_acpi_dev *dev = container_of(cdev, 744 struct toshiba_acpi_dev, eco_led); 745 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 }; 746 u32 out[TCI_WORDS]; 747 acpi_status status; 748 749 /* Switch the Eco Mode led on/off */ 750 in[2] = (brightness) ? 1 : 0; 751 status = tci_raw(dev, in, out); 752 if (ACPI_FAILURE(status)) 753 pr_err("ACPI call to set ECO led failed\n"); 754 } 755 756 /* Accelerometer support */ 757 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev) 758 { 759 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 }; 760 u32 out[TCI_WORDS]; 761 acpi_status status; 762 763 dev->accelerometer_supported = 0; 764 765 /* 766 * Check if the accelerometer call exists, 767 * this call also serves as initialization 768 */ 769 status = tci_raw(dev, in, out); 770 if (ACPI_FAILURE(status)) { 771 pr_err("ACPI call to query the accelerometer failed\n"); 772 return; 773 } 774 775 if (out[0] != TOS_SUCCESS) 776 return; 777 778 dev->accelerometer_supported = 1; 779 } 780 781 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev, 782 u32 *xy, u32 *z) 783 { 784 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 }; 785 u32 out[TCI_WORDS]; 786 acpi_status status; 787 788 /* Check the Accelerometer status */ 789 status = tci_raw(dev, in, out); 790 if (ACPI_FAILURE(status)) { 791 pr_err("ACPI call to query the accelerometer failed\n"); 792 return -EIO; 793 } 794 795 if (out[0] == TOS_NOT_SUPPORTED) 796 return -ENODEV; 797 798 if (out[0] != TOS_SUCCESS) 799 return -EIO; 800 801 *xy = out[2]; 802 *z = out[4]; 803 804 return 0; 805 } 806 807 /* Sleep (Charge and Music) utilities support */ 808 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev) 809 { 810 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 811 u32 out[TCI_WORDS]; 812 acpi_status status; 813 814 dev->usb_sleep_charge_supported = 0; 815 816 if (!sci_open(dev)) 817 return; 818 819 status = tci_raw(dev, in, out); 820 if (ACPI_FAILURE(status)) { 821 pr_err("ACPI call to get USB Sleep and Charge mode failed\n"); 822 sci_close(dev); 823 return; 824 } 825 826 if (out[0] != TOS_SUCCESS) { 827 sci_close(dev); 828 return; 829 } 830 831 dev->usbsc_mode_base = out[4]; 832 833 in[5] = SCI_USB_CHARGE_BAT_LVL; 834 status = tci_raw(dev, in, out); 835 sci_close(dev); 836 if (ACPI_FAILURE(status)) { 837 pr_err("ACPI call to get USB Sleep and Charge mode failed\n"); 838 return; 839 } 840 841 if (out[0] != TOS_SUCCESS) 842 return; 843 844 dev->usbsc_bat_level = out[2]; 845 /* Flag as supported */ 846 dev->usb_sleep_charge_supported = 1; 847 } 848 849 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev, 850 u32 *mode) 851 { 852 u32 result; 853 854 if (!sci_open(dev)) 855 return -EIO; 856 857 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode); 858 sci_close(dev); 859 if (result == TOS_FAILURE) 860 pr_err("ACPI call to set USB S&C mode failed\n"); 861 else if (result == TOS_NOT_SUPPORTED) 862 return -ENODEV; 863 864 return result == TOS_SUCCESS ? 0 : -EIO; 865 } 866 867 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev, 868 u32 mode) 869 { 870 u32 result; 871 872 if (!sci_open(dev)) 873 return -EIO; 874 875 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode); 876 sci_close(dev); 877 if (result == TOS_FAILURE) 878 pr_err("ACPI call to set USB S&C mode failed\n"); 879 else if (result == TOS_NOT_SUPPORTED) 880 return -ENODEV; 881 882 return result == TOS_SUCCESS ? 0 : -EIO; 883 } 884 885 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev, 886 u32 *mode) 887 { 888 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 889 u32 out[TCI_WORDS]; 890 acpi_status status; 891 892 if (!sci_open(dev)) 893 return -EIO; 894 895 in[5] = SCI_USB_CHARGE_BAT_LVL; 896 status = tci_raw(dev, in, out); 897 sci_close(dev); 898 if (ACPI_FAILURE(status)) { 899 pr_err("ACPI call to get USB S&C battery level failed\n"); 900 return -EIO; 901 } 902 903 if (out[0] == TOS_NOT_SUPPORTED) 904 return -ENODEV; 905 906 if (out[0] != TOS_SUCCESS) 907 return -EIO; 908 909 *mode = out[2]; 910 911 return 0; 912 913 } 914 915 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev, 916 u32 mode) 917 { 918 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 919 u32 out[TCI_WORDS]; 920 acpi_status status; 921 922 if (!sci_open(dev)) 923 return -EIO; 924 925 in[2] = mode; 926 in[5] = SCI_USB_CHARGE_BAT_LVL; 927 status = tci_raw(dev, in, out); 928 sci_close(dev); 929 if (ACPI_FAILURE(status)) { 930 pr_err("ACPI call to set USB S&C battery level failed\n"); 931 return -EIO; 932 } 933 934 if (out[0] == TOS_NOT_SUPPORTED) 935 return -ENODEV; 936 937 return out[0] == TOS_SUCCESS ? 0 : -EIO; 938 } 939 940 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev, 941 u32 *state) 942 { 943 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 944 u32 out[TCI_WORDS]; 945 acpi_status status; 946 947 if (!sci_open(dev)) 948 return -EIO; 949 950 in[5] = SCI_USB_CHARGE_RAPID_DSP; 951 status = tci_raw(dev, in, out); 952 sci_close(dev); 953 if (ACPI_FAILURE(status)) { 954 pr_err("ACPI call to get USB Rapid Charge failed\n"); 955 return -EIO; 956 } 957 958 if (out[0] == TOS_NOT_SUPPORTED) 959 return -ENODEV; 960 961 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2) 962 return -EIO; 963 964 *state = out[2]; 965 966 return 0; 967 } 968 969 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev, 970 u32 state) 971 { 972 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 973 u32 out[TCI_WORDS]; 974 acpi_status status; 975 976 if (!sci_open(dev)) 977 return -EIO; 978 979 in[2] = state; 980 in[5] = SCI_USB_CHARGE_RAPID_DSP; 981 status = tci_raw(dev, in, out); 982 sci_close(dev); 983 if (ACPI_FAILURE(status)) { 984 pr_err("ACPI call to set USB Rapid Charge failed\n"); 985 return -EIO; 986 } 987 988 if (out[0] == TOS_NOT_SUPPORTED) 989 return -ENODEV; 990 991 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO; 992 } 993 994 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state) 995 { 996 u32 result; 997 998 if (!sci_open(dev)) 999 return -EIO; 1000 1001 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state); 1002 sci_close(dev); 1003 if (result == TOS_FAILURE) 1004 pr_err("ACPI call to get Sleep and Music failed\n"); 1005 else if (result == TOS_NOT_SUPPORTED) 1006 return -ENODEV; 1007 1008 return result == TOS_SUCCESS ? 0 : -EIO; 1009 } 1010 1011 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state) 1012 { 1013 u32 result; 1014 1015 if (!sci_open(dev)) 1016 return -EIO; 1017 1018 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state); 1019 sci_close(dev); 1020 if (result == TOS_FAILURE) 1021 pr_err("ACPI call to set Sleep and Music failed\n"); 1022 else if (result == TOS_NOT_SUPPORTED) 1023 return -ENODEV; 1024 1025 return result == TOS_SUCCESS ? 0 : -EIO; 1026 } 1027 1028 /* Keyboard function keys */ 1029 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode) 1030 { 1031 u32 result; 1032 1033 if (!sci_open(dev)) 1034 return -EIO; 1035 1036 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode); 1037 sci_close(dev); 1038 if (result == TOS_FAILURE) 1039 pr_err("ACPI call to get KBD function keys failed\n"); 1040 else if (result == TOS_NOT_SUPPORTED) 1041 return -ENODEV; 1042 1043 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1044 } 1045 1046 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode) 1047 { 1048 u32 result; 1049 1050 if (!sci_open(dev)) 1051 return -EIO; 1052 1053 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode); 1054 sci_close(dev); 1055 if (result == TOS_FAILURE) 1056 pr_err("ACPI call to set KBD function keys failed\n"); 1057 else if (result == TOS_NOT_SUPPORTED) 1058 return -ENODEV; 1059 1060 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1061 } 1062 1063 /* Panel Power ON */ 1064 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state) 1065 { 1066 u32 result; 1067 1068 if (!sci_open(dev)) 1069 return -EIO; 1070 1071 result = sci_read(dev, SCI_PANEL_POWER_ON, state); 1072 sci_close(dev); 1073 if (result == TOS_FAILURE) 1074 pr_err("ACPI call to get Panel Power ON failed\n"); 1075 else if (result == TOS_NOT_SUPPORTED) 1076 return -ENODEV; 1077 1078 return result == TOS_SUCCESS ? 0 : -EIO; 1079 } 1080 1081 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state) 1082 { 1083 u32 result; 1084 1085 if (!sci_open(dev)) 1086 return -EIO; 1087 1088 result = sci_write(dev, SCI_PANEL_POWER_ON, state); 1089 sci_close(dev); 1090 if (result == TOS_FAILURE) 1091 pr_err("ACPI call to set Panel Power ON failed\n"); 1092 else if (result == TOS_NOT_SUPPORTED) 1093 return -ENODEV; 1094 1095 return result == TOS_SUCCESS ? 0 : -EIO; 1096 } 1097 1098 /* USB Three */ 1099 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state) 1100 { 1101 u32 result; 1102 1103 if (!sci_open(dev)) 1104 return -EIO; 1105 1106 result = sci_read(dev, SCI_USB_THREE, state); 1107 sci_close(dev); 1108 if (result == TOS_FAILURE) 1109 pr_err("ACPI call to get USB 3 failed\n"); 1110 else if (result == TOS_NOT_SUPPORTED) 1111 return -ENODEV; 1112 1113 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1114 } 1115 1116 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state) 1117 { 1118 u32 result; 1119 1120 if (!sci_open(dev)) 1121 return -EIO; 1122 1123 result = sci_write(dev, SCI_USB_THREE, state); 1124 sci_close(dev); 1125 if (result == TOS_FAILURE) 1126 pr_err("ACPI call to set USB 3 failed\n"); 1127 else if (result == TOS_NOT_SUPPORTED) 1128 return -ENODEV; 1129 1130 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1131 } 1132 1133 /* Hotkey Event type */ 1134 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev, 1135 u32 *type) 1136 { 1137 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 }; 1138 u32 out[TCI_WORDS]; 1139 acpi_status status; 1140 1141 status = tci_raw(dev, in, out); 1142 if (ACPI_FAILURE(status)) { 1143 pr_err("ACPI call to get System type failed\n"); 1144 return -EIO; 1145 } 1146 1147 if (out[0] == TOS_NOT_SUPPORTED) 1148 return -ENODEV; 1149 1150 if (out[0] != TOS_SUCCESS) 1151 return -EIO; 1152 1153 *type = out[3]; 1154 1155 return 0; 1156 } 1157 1158 /* Wireless status (RFKill, WLAN, BT, WWAN) */ 1159 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev) 1160 { 1161 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 }; 1162 u32 out[TCI_WORDS]; 1163 acpi_status status; 1164 1165 in[3] = HCI_WIRELESS_STATUS; 1166 status = tci_raw(dev, in, out); 1167 1168 if (ACPI_FAILURE(status)) { 1169 pr_err("ACPI call to get Wireless status failed\n"); 1170 return -EIO; 1171 } 1172 1173 if (out[0] == TOS_NOT_SUPPORTED) 1174 return -ENODEV; 1175 1176 if (out[0] != TOS_SUCCESS) 1177 return -EIO; 1178 1179 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS); 1180 1181 return 0; 1182 } 1183 1184 /* WWAN */ 1185 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev) 1186 { 1187 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 }; 1188 u32 out[TCI_WORDS]; 1189 acpi_status status; 1190 1191 dev->wwan_supported = 0; 1192 1193 /* 1194 * WWAN support can be queried by setting the in[3] value to 1195 * HCI_WIRELESS_WWAN (0x03). 1196 * 1197 * If supported, out[0] contains TOS_SUCCESS and out[2] contains 1198 * HCI_WIRELESS_WWAN_STATUS (0x2000). 1199 * 1200 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300) 1201 * or TOS_NOT_SUPPORTED (0x8000). 1202 */ 1203 in[3] = HCI_WIRELESS_WWAN; 1204 status = tci_raw(dev, in, out); 1205 if (ACPI_FAILURE(status)) { 1206 pr_err("ACPI call to get WWAN status failed\n"); 1207 return; 1208 } 1209 1210 if (out[0] != TOS_SUCCESS) 1211 return; 1212 1213 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS); 1214 } 1215 1216 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state) 1217 { 1218 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 }; 1219 u32 out[TCI_WORDS]; 1220 acpi_status status; 1221 1222 in[3] = HCI_WIRELESS_WWAN_STATUS; 1223 status = tci_raw(dev, in, out); 1224 if (ACPI_FAILURE(status)) { 1225 pr_err("ACPI call to set WWAN status failed\n"); 1226 return -EIO; 1227 } 1228 1229 if (out[0] == TOS_NOT_SUPPORTED) 1230 return -ENODEV; 1231 1232 if (out[0] != TOS_SUCCESS) 1233 return -EIO; 1234 1235 /* 1236 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to 1237 * (de)activate the device, but some others need the 1238 * HCI_WIRELESS_WWAN_POWER call as well. 1239 */ 1240 in[3] = HCI_WIRELESS_WWAN_POWER; 1241 status = tci_raw(dev, in, out); 1242 if (ACPI_FAILURE(status)) { 1243 pr_err("ACPI call to set WWAN power failed\n"); 1244 return -EIO; 1245 } 1246 1247 if (out[0] == TOS_NOT_SUPPORTED) 1248 return -ENODEV; 1249 1250 return out[0] == TOS_SUCCESS ? 0 : -EIO; 1251 } 1252 1253 /* Cooling Method */ 1254 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev) 1255 { 1256 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 }; 1257 u32 out[TCI_WORDS]; 1258 acpi_status status; 1259 1260 dev->cooling_method_supported = 0; 1261 dev->max_cooling_method = 0; 1262 1263 status = tci_raw(dev, in, out); 1264 if (ACPI_FAILURE(status)) { 1265 pr_err("ACPI call to get Cooling Method failed\n"); 1266 return; 1267 } 1268 1269 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2) 1270 return; 1271 1272 dev->cooling_method_supported = 1; 1273 dev->max_cooling_method = out[3]; 1274 } 1275 1276 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state) 1277 { 1278 u32 result = hci_read(dev, HCI_COOLING_METHOD, state); 1279 1280 if (result == TOS_FAILURE) 1281 pr_err("ACPI call to get Cooling Method failed\n"); 1282 1283 if (result == TOS_NOT_SUPPORTED) 1284 return -ENODEV; 1285 1286 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1287 } 1288 1289 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state) 1290 { 1291 u32 result = hci_write(dev, HCI_COOLING_METHOD, state); 1292 1293 if (result == TOS_FAILURE) 1294 pr_err("ACPI call to set Cooling Method failed\n"); 1295 1296 if (result == TOS_NOT_SUPPORTED) 1297 return -ENODEV; 1298 1299 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1300 } 1301 1302 /* Transflective Backlight */ 1303 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status) 1304 { 1305 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status); 1306 1307 if (result == TOS_FAILURE) 1308 pr_err("ACPI call to get Transflective Backlight failed\n"); 1309 else if (result == TOS_NOT_SUPPORTED) 1310 return -ENODEV; 1311 1312 return result == TOS_SUCCESS ? 0 : -EIO; 1313 } 1314 1315 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status) 1316 { 1317 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status); 1318 1319 if (result == TOS_FAILURE) 1320 pr_err("ACPI call to set Transflective Backlight failed\n"); 1321 else if (result == TOS_NOT_SUPPORTED) 1322 return -ENODEV; 1323 1324 return result == TOS_SUCCESS ? 0 : -EIO; 1325 } 1326 1327 static struct proc_dir_entry *toshiba_proc_dir; 1328 1329 /* LCD Brightness */ 1330 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev) 1331 { 1332 int brightness = 0; 1333 u32 result; 1334 u32 value; 1335 1336 if (dev->tr_backlight_supported) { 1337 int ret = get_tr_backlight_status(dev, &value); 1338 1339 if (ret) 1340 return ret; 1341 if (value) 1342 return 0; 1343 brightness++; 1344 } 1345 1346 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value); 1347 if (result == TOS_FAILURE) 1348 pr_err("ACPI call to get LCD Brightness failed\n"); 1349 else if (result == TOS_NOT_SUPPORTED) 1350 return -ENODEV; 1351 1352 return result == TOS_SUCCESS ? 1353 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) : 1354 -EIO; 1355 } 1356 1357 static int get_lcd_brightness(struct backlight_device *bd) 1358 { 1359 struct toshiba_acpi_dev *dev = bl_get_data(bd); 1360 1361 return __get_lcd_brightness(dev); 1362 } 1363 1364 static int lcd_proc_show(struct seq_file *m, void *v) 1365 { 1366 struct toshiba_acpi_dev *dev = m->private; 1367 int levels; 1368 int value; 1369 1370 if (!dev->backlight_dev) 1371 return -ENODEV; 1372 1373 levels = dev->backlight_dev->props.max_brightness + 1; 1374 value = get_lcd_brightness(dev->backlight_dev); 1375 if (value < 0) { 1376 pr_err("Error reading LCD brightness\n"); 1377 return value; 1378 } 1379 1380 seq_printf(m, "brightness: %d\n", value); 1381 seq_printf(m, "brightness_levels: %d\n", levels); 1382 1383 return 0; 1384 } 1385 1386 static int lcd_proc_open(struct inode *inode, struct file *file) 1387 { 1388 return single_open(file, lcd_proc_show, PDE_DATA(inode)); 1389 } 1390 1391 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value) 1392 { 1393 u32 result; 1394 1395 if (dev->tr_backlight_supported) { 1396 int ret = set_tr_backlight_status(dev, !value); 1397 1398 if (ret) 1399 return ret; 1400 if (value) 1401 value--; 1402 } 1403 1404 value = value << HCI_LCD_BRIGHTNESS_SHIFT; 1405 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value); 1406 if (result == TOS_FAILURE) 1407 pr_err("ACPI call to set LCD Brightness failed\n"); 1408 else if (result == TOS_NOT_SUPPORTED) 1409 return -ENODEV; 1410 1411 return result == TOS_SUCCESS ? 0 : -EIO; 1412 } 1413 1414 static int set_lcd_status(struct backlight_device *bd) 1415 { 1416 struct toshiba_acpi_dev *dev = bl_get_data(bd); 1417 1418 return set_lcd_brightness(dev, bd->props.brightness); 1419 } 1420 1421 static ssize_t lcd_proc_write(struct file *file, const char __user *buf, 1422 size_t count, loff_t *pos) 1423 { 1424 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); 1425 char cmd[42]; 1426 size_t len; 1427 int levels; 1428 int value; 1429 1430 len = min(count, sizeof(cmd) - 1); 1431 if (copy_from_user(cmd, buf, len)) 1432 return -EFAULT; 1433 cmd[len] = '\0'; 1434 1435 levels = dev->backlight_dev->props.max_brightness + 1; 1436 if (sscanf(cmd, " brightness : %i", &value) != 1 && 1437 value < 0 && value > levels) 1438 return -EINVAL; 1439 1440 if (set_lcd_brightness(dev, value)) 1441 return -EIO; 1442 1443 return count; 1444 } 1445 1446 static const struct file_operations lcd_proc_fops = { 1447 .owner = THIS_MODULE, 1448 .open = lcd_proc_open, 1449 .read = seq_read, 1450 .llseek = seq_lseek, 1451 .release = single_release, 1452 .write = lcd_proc_write, 1453 }; 1454 1455 /* Video-Out */ 1456 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status) 1457 { 1458 u32 result = hci_read(dev, HCI_VIDEO_OUT, status); 1459 1460 if (result == TOS_FAILURE) 1461 pr_err("ACPI call to get Video-Out failed\n"); 1462 else if (result == TOS_NOT_SUPPORTED) 1463 return -ENODEV; 1464 1465 return result == TOS_SUCCESS ? 0 : -EIO; 1466 } 1467 1468 static int video_proc_show(struct seq_file *m, void *v) 1469 { 1470 struct toshiba_acpi_dev *dev = m->private; 1471 int is_lcd, is_crt, is_tv; 1472 u32 value; 1473 1474 if (get_video_status(dev, &value)) 1475 return -EIO; 1476 1477 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0; 1478 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0; 1479 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0; 1480 1481 seq_printf(m, "lcd_out: %d\n", is_lcd); 1482 seq_printf(m, "crt_out: %d\n", is_crt); 1483 seq_printf(m, "tv_out: %d\n", is_tv); 1484 1485 return 0; 1486 } 1487 1488 static int video_proc_open(struct inode *inode, struct file *file) 1489 { 1490 return single_open(file, video_proc_show, PDE_DATA(inode)); 1491 } 1492 1493 static ssize_t video_proc_write(struct file *file, const char __user *buf, 1494 size_t count, loff_t *pos) 1495 { 1496 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); 1497 char *buffer; 1498 char *cmd; 1499 int lcd_out, crt_out, tv_out; 1500 int remain = count; 1501 int value; 1502 int ret; 1503 u32 video_out; 1504 1505 cmd = memdup_user_nul(buf, count); 1506 if (IS_ERR(cmd)) 1507 return PTR_ERR(cmd); 1508 1509 buffer = cmd; 1510 1511 /* 1512 * Scan expression. Multiple expressions may be delimited with ; 1513 * NOTE: To keep scanning simple, invalid fields are ignored. 1514 */ 1515 while (remain) { 1516 if (sscanf(buffer, " lcd_out : %i", &value) == 1) 1517 lcd_out = value & 1; 1518 else if (sscanf(buffer, " crt_out : %i", &value) == 1) 1519 crt_out = value & 1; 1520 else if (sscanf(buffer, " tv_out : %i", &value) == 1) 1521 tv_out = value & 1; 1522 /* Advance to one character past the next ; */ 1523 do { 1524 ++buffer; 1525 --remain; 1526 } while (remain && *(buffer - 1) != ';'); 1527 } 1528 1529 kfree(cmd); 1530 1531 lcd_out = crt_out = tv_out = -1; 1532 ret = get_video_status(dev, &video_out); 1533 if (!ret) { 1534 unsigned int new_video_out = video_out; 1535 1536 if (lcd_out != -1) 1537 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out); 1538 if (crt_out != -1) 1539 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out); 1540 if (tv_out != -1) 1541 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out); 1542 /* 1543 * To avoid unnecessary video disruption, only write the new 1544 * video setting if something changed. 1545 */ 1546 if (new_video_out != video_out) 1547 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out); 1548 } 1549 1550 return ret ? -EIO : count; 1551 } 1552 1553 static const struct file_operations video_proc_fops = { 1554 .owner = THIS_MODULE, 1555 .open = video_proc_open, 1556 .read = seq_read, 1557 .llseek = seq_lseek, 1558 .release = single_release, 1559 .write = video_proc_write, 1560 }; 1561 1562 /* Fan status */ 1563 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status) 1564 { 1565 u32 result = hci_read(dev, HCI_FAN, status); 1566 1567 if (result == TOS_FAILURE) 1568 pr_err("ACPI call to get Fan status failed\n"); 1569 else if (result == TOS_NOT_SUPPORTED) 1570 return -ENODEV; 1571 1572 return result == TOS_SUCCESS ? 0 : -EIO; 1573 } 1574 1575 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status) 1576 { 1577 u32 result = hci_write(dev, HCI_FAN, status); 1578 1579 if (result == TOS_FAILURE) 1580 pr_err("ACPI call to set Fan status failed\n"); 1581 else if (result == TOS_NOT_SUPPORTED) 1582 return -ENODEV; 1583 1584 return result == TOS_SUCCESS ? 0 : -EIO; 1585 } 1586 1587 static int fan_proc_show(struct seq_file *m, void *v) 1588 { 1589 struct toshiba_acpi_dev *dev = m->private; 1590 u32 value; 1591 1592 if (get_fan_status(dev, &value)) 1593 return -EIO; 1594 1595 seq_printf(m, "running: %d\n", (value > 0)); 1596 seq_printf(m, "force_on: %d\n", dev->force_fan); 1597 1598 return 0; 1599 } 1600 1601 static int fan_proc_open(struct inode *inode, struct file *file) 1602 { 1603 return single_open(file, fan_proc_show, PDE_DATA(inode)); 1604 } 1605 1606 static ssize_t fan_proc_write(struct file *file, const char __user *buf, 1607 size_t count, loff_t *pos) 1608 { 1609 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); 1610 char cmd[42]; 1611 size_t len; 1612 int value; 1613 1614 len = min(count, sizeof(cmd) - 1); 1615 if (copy_from_user(cmd, buf, len)) 1616 return -EFAULT; 1617 cmd[len] = '\0'; 1618 1619 if (sscanf(cmd, " force_on : %i", &value) != 1 && 1620 value != 0 && value != 1) 1621 return -EINVAL; 1622 1623 if (set_fan_status(dev, value)) 1624 return -EIO; 1625 1626 dev->force_fan = value; 1627 1628 return count; 1629 } 1630 1631 static const struct file_operations fan_proc_fops = { 1632 .owner = THIS_MODULE, 1633 .open = fan_proc_open, 1634 .read = seq_read, 1635 .llseek = seq_lseek, 1636 .release = single_release, 1637 .write = fan_proc_write, 1638 }; 1639 1640 static int keys_proc_show(struct seq_file *m, void *v) 1641 { 1642 struct toshiba_acpi_dev *dev = m->private; 1643 1644 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid); 1645 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event); 1646 1647 return 0; 1648 } 1649 1650 static int keys_proc_open(struct inode *inode, struct file *file) 1651 { 1652 return single_open(file, keys_proc_show, PDE_DATA(inode)); 1653 } 1654 1655 static ssize_t keys_proc_write(struct file *file, const char __user *buf, 1656 size_t count, loff_t *pos) 1657 { 1658 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); 1659 char cmd[42]; 1660 size_t len; 1661 int value; 1662 1663 len = min(count, sizeof(cmd) - 1); 1664 if (copy_from_user(cmd, buf, len)) 1665 return -EFAULT; 1666 cmd[len] = '\0'; 1667 1668 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) 1669 dev->key_event_valid = 0; 1670 else 1671 return -EINVAL; 1672 1673 return count; 1674 } 1675 1676 static const struct file_operations keys_proc_fops = { 1677 .owner = THIS_MODULE, 1678 .open = keys_proc_open, 1679 .read = seq_read, 1680 .llseek = seq_lseek, 1681 .release = single_release, 1682 .write = keys_proc_write, 1683 }; 1684 1685 static int version_proc_show(struct seq_file *m, void *v) 1686 { 1687 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION); 1688 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION); 1689 return 0; 1690 } 1691 1692 /* 1693 * Proc and module init 1694 */ 1695 1696 #define PROC_TOSHIBA "toshiba" 1697 1698 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev) 1699 { 1700 if (dev->backlight_dev) 1701 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1702 &lcd_proc_fops, dev); 1703 if (dev->video_supported) 1704 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1705 &video_proc_fops, dev); 1706 if (dev->fan_supported) 1707 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1708 &fan_proc_fops, dev); 1709 if (dev->hotkey_dev) 1710 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1711 &keys_proc_fops, dev); 1712 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir, 1713 version_proc_show, dev); 1714 } 1715 1716 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev) 1717 { 1718 if (dev->backlight_dev) 1719 remove_proc_entry("lcd", toshiba_proc_dir); 1720 if (dev->video_supported) 1721 remove_proc_entry("video", toshiba_proc_dir); 1722 if (dev->fan_supported) 1723 remove_proc_entry("fan", toshiba_proc_dir); 1724 if (dev->hotkey_dev) 1725 remove_proc_entry("keys", toshiba_proc_dir); 1726 remove_proc_entry("version", toshiba_proc_dir); 1727 } 1728 1729 static const struct backlight_ops toshiba_backlight_data = { 1730 .options = BL_CORE_SUSPENDRESUME, 1731 .get_brightness = get_lcd_brightness, 1732 .update_status = set_lcd_status, 1733 }; 1734 1735 /* Keyboard backlight work */ 1736 static void toshiba_acpi_kbd_bl_work(struct work_struct *work); 1737 1738 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work); 1739 1740 /* 1741 * Sysfs files 1742 */ 1743 static ssize_t version_show(struct device *dev, 1744 struct device_attribute *attr, char *buf) 1745 { 1746 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION); 1747 } 1748 static DEVICE_ATTR_RO(version); 1749 1750 static ssize_t fan_store(struct device *dev, 1751 struct device_attribute *attr, 1752 const char *buf, size_t count) 1753 { 1754 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1755 int state; 1756 int ret; 1757 1758 ret = kstrtoint(buf, 0, &state); 1759 if (ret) 1760 return ret; 1761 1762 if (state != 0 && state != 1) 1763 return -EINVAL; 1764 1765 ret = set_fan_status(toshiba, state); 1766 if (ret) 1767 return ret; 1768 1769 return count; 1770 } 1771 1772 static ssize_t fan_show(struct device *dev, 1773 struct device_attribute *attr, char *buf) 1774 { 1775 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1776 u32 value; 1777 int ret; 1778 1779 ret = get_fan_status(toshiba, &value); 1780 if (ret) 1781 return ret; 1782 1783 return sprintf(buf, "%d\n", value); 1784 } 1785 static DEVICE_ATTR_RW(fan); 1786 1787 static ssize_t kbd_backlight_mode_store(struct device *dev, 1788 struct device_attribute *attr, 1789 const char *buf, size_t count) 1790 { 1791 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1792 int mode; 1793 int ret; 1794 1795 1796 ret = kstrtoint(buf, 0, &mode); 1797 if (ret) 1798 return ret; 1799 1800 /* Check for supported modes depending on keyboard backlight type */ 1801 if (toshiba->kbd_type == 1) { 1802 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */ 1803 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO) 1804 return -EINVAL; 1805 } else if (toshiba->kbd_type == 2) { 1806 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */ 1807 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON && 1808 mode != SCI_KBD_MODE_OFF) 1809 return -EINVAL; 1810 } 1811 1812 /* 1813 * Set the Keyboard Backlight Mode where: 1814 * Auto - KBD backlight turns off automatically in given time 1815 * FN-Z - KBD backlight "toggles" when hotkey pressed 1816 * ON - KBD backlight is always on 1817 * OFF - KBD backlight is always off 1818 */ 1819 1820 /* Only make a change if the actual mode has changed */ 1821 if (toshiba->kbd_mode != mode) { 1822 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */ 1823 int time = toshiba->kbd_time << HCI_MISC_SHIFT; 1824 1825 /* OR the "base time" to the actual method format */ 1826 if (toshiba->kbd_type == 1) { 1827 /* Type 1 requires the current mode */ 1828 time |= toshiba->kbd_mode; 1829 } else if (toshiba->kbd_type == 2) { 1830 /* Type 2 requires the desired mode */ 1831 time |= mode; 1832 } 1833 1834 ret = toshiba_kbd_illum_status_set(toshiba, time); 1835 if (ret) 1836 return ret; 1837 1838 toshiba->kbd_mode = mode; 1839 1840 /* 1841 * Some laptop models with the second generation backlit 1842 * keyboard (type 2) do not generate the keyboard backlight 1843 * changed event (0x92), and thus, the driver will never update 1844 * the sysfs entries. 1845 * 1846 * The event is generated right when changing the keyboard 1847 * backlight mode and the *notify function will set the 1848 * kbd_event_generated to true. 1849 * 1850 * In case the event is not generated, schedule the keyboard 1851 * backlight work to update the sysfs entries and emulate the 1852 * event via genetlink. 1853 */ 1854 if (toshiba->kbd_type == 2 && 1855 !toshiba_acpi->kbd_event_generated) 1856 schedule_work(&kbd_bl_work); 1857 } 1858 1859 return count; 1860 } 1861 1862 static ssize_t kbd_backlight_mode_show(struct device *dev, 1863 struct device_attribute *attr, 1864 char *buf) 1865 { 1866 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1867 u32 time; 1868 1869 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0) 1870 return -EIO; 1871 1872 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK); 1873 } 1874 static DEVICE_ATTR_RW(kbd_backlight_mode); 1875 1876 static ssize_t kbd_type_show(struct device *dev, 1877 struct device_attribute *attr, char *buf) 1878 { 1879 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1880 1881 return sprintf(buf, "%d\n", toshiba->kbd_type); 1882 } 1883 static DEVICE_ATTR_RO(kbd_type); 1884 1885 static ssize_t available_kbd_modes_show(struct device *dev, 1886 struct device_attribute *attr, 1887 char *buf) 1888 { 1889 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1890 1891 if (toshiba->kbd_type == 1) 1892 return sprintf(buf, "0x%x 0x%x\n", 1893 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO); 1894 1895 return sprintf(buf, "0x%x 0x%x 0x%x\n", 1896 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF); 1897 } 1898 static DEVICE_ATTR_RO(available_kbd_modes); 1899 1900 static ssize_t kbd_backlight_timeout_store(struct device *dev, 1901 struct device_attribute *attr, 1902 const char *buf, size_t count) 1903 { 1904 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1905 int time; 1906 int ret; 1907 1908 ret = kstrtoint(buf, 0, &time); 1909 if (ret) 1910 return ret; 1911 1912 /* Check for supported values depending on kbd_type */ 1913 if (toshiba->kbd_type == 1) { 1914 if (time < 0 || time > 60) 1915 return -EINVAL; 1916 } else if (toshiba->kbd_type == 2) { 1917 if (time < 1 || time > 60) 1918 return -EINVAL; 1919 } 1920 1921 /* Set the Keyboard Backlight Timeout */ 1922 1923 /* Only make a change if the actual timeout has changed */ 1924 if (toshiba->kbd_time != time) { 1925 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */ 1926 time = time << HCI_MISC_SHIFT; 1927 /* OR the "base time" to the actual method format */ 1928 if (toshiba->kbd_type == 1) 1929 time |= SCI_KBD_MODE_FNZ; 1930 else if (toshiba->kbd_type == 2) 1931 time |= SCI_KBD_MODE_AUTO; 1932 1933 ret = toshiba_kbd_illum_status_set(toshiba, time); 1934 if (ret) 1935 return ret; 1936 1937 toshiba->kbd_time = time >> HCI_MISC_SHIFT; 1938 } 1939 1940 return count; 1941 } 1942 1943 static ssize_t kbd_backlight_timeout_show(struct device *dev, 1944 struct device_attribute *attr, 1945 char *buf) 1946 { 1947 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1948 u32 time; 1949 1950 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0) 1951 return -EIO; 1952 1953 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT); 1954 } 1955 static DEVICE_ATTR_RW(kbd_backlight_timeout); 1956 1957 static ssize_t touchpad_store(struct device *dev, 1958 struct device_attribute *attr, 1959 const char *buf, size_t count) 1960 { 1961 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1962 int state; 1963 int ret; 1964 1965 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */ 1966 ret = kstrtoint(buf, 0, &state); 1967 if (ret) 1968 return ret; 1969 if (state != 0 && state != 1) 1970 return -EINVAL; 1971 1972 ret = toshiba_touchpad_set(toshiba, state); 1973 if (ret) 1974 return ret; 1975 1976 return count; 1977 } 1978 1979 static ssize_t touchpad_show(struct device *dev, 1980 struct device_attribute *attr, char *buf) 1981 { 1982 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1983 u32 state; 1984 int ret; 1985 1986 ret = toshiba_touchpad_get(toshiba, &state); 1987 if (ret < 0) 1988 return ret; 1989 1990 return sprintf(buf, "%i\n", state); 1991 } 1992 static DEVICE_ATTR_RW(touchpad); 1993 1994 static ssize_t usb_sleep_charge_show(struct device *dev, 1995 struct device_attribute *attr, char *buf) 1996 { 1997 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1998 u32 mode; 1999 int ret; 2000 2001 ret = toshiba_usb_sleep_charge_get(toshiba, &mode); 2002 if (ret < 0) 2003 return ret; 2004 2005 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK); 2006 } 2007 2008 static ssize_t usb_sleep_charge_store(struct device *dev, 2009 struct device_attribute *attr, 2010 const char *buf, size_t count) 2011 { 2012 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2013 int state; 2014 u32 mode; 2015 int ret; 2016 2017 ret = kstrtoint(buf, 0, &state); 2018 if (ret) 2019 return ret; 2020 /* 2021 * Check for supported values, where: 2022 * 0 - Disabled 2023 * 1 - Alternate (Non USB conformant devices that require more power) 2024 * 2 - Auto (USB conformant devices) 2025 * 3 - Typical 2026 */ 2027 if (state != 0 && state != 1 && state != 2 && state != 3) 2028 return -EINVAL; 2029 2030 /* Set the USB charging mode to internal value */ 2031 mode = toshiba->usbsc_mode_base; 2032 if (state == 0) 2033 mode |= SCI_USB_CHARGE_DISABLED; 2034 else if (state == 1) 2035 mode |= SCI_USB_CHARGE_ALTERNATE; 2036 else if (state == 2) 2037 mode |= SCI_USB_CHARGE_AUTO; 2038 else if (state == 3) 2039 mode |= SCI_USB_CHARGE_TYPICAL; 2040 2041 ret = toshiba_usb_sleep_charge_set(toshiba, mode); 2042 if (ret) 2043 return ret; 2044 2045 return count; 2046 } 2047 static DEVICE_ATTR_RW(usb_sleep_charge); 2048 2049 static ssize_t sleep_functions_on_battery_show(struct device *dev, 2050 struct device_attribute *attr, 2051 char *buf) 2052 { 2053 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2054 int bat_lvl, status; 2055 u32 state; 2056 int ret; 2057 int tmp; 2058 2059 ret = toshiba_sleep_functions_status_get(toshiba, &state); 2060 if (ret < 0) 2061 return ret; 2062 2063 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */ 2064 tmp = state & SCI_USB_CHARGE_BAT_MASK; 2065 status = (tmp == 0x4) ? 1 : 0; 2066 /* Determine the battery level set */ 2067 bat_lvl = state >> HCI_MISC_SHIFT; 2068 2069 return sprintf(buf, "%d %d\n", status, bat_lvl); 2070 } 2071 2072 static ssize_t sleep_functions_on_battery_store(struct device *dev, 2073 struct device_attribute *attr, 2074 const char *buf, size_t count) 2075 { 2076 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2077 u32 status; 2078 int value; 2079 int ret; 2080 int tmp; 2081 2082 ret = kstrtoint(buf, 0, &value); 2083 if (ret) 2084 return ret; 2085 2086 /* 2087 * Set the status of the function: 2088 * 0 - Disabled 2089 * 1-100 - Enabled 2090 */ 2091 if (value < 0 || value > 100) 2092 return -EINVAL; 2093 2094 if (value == 0) { 2095 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT; 2096 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF; 2097 } else { 2098 tmp = value << HCI_MISC_SHIFT; 2099 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON; 2100 } 2101 ret = toshiba_sleep_functions_status_set(toshiba, status); 2102 if (ret < 0) 2103 return ret; 2104 2105 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT; 2106 2107 return count; 2108 } 2109 static DEVICE_ATTR_RW(sleep_functions_on_battery); 2110 2111 static ssize_t usb_rapid_charge_show(struct device *dev, 2112 struct device_attribute *attr, char *buf) 2113 { 2114 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2115 u32 state; 2116 int ret; 2117 2118 ret = toshiba_usb_rapid_charge_get(toshiba, &state); 2119 if (ret < 0) 2120 return ret; 2121 2122 return sprintf(buf, "%d\n", state); 2123 } 2124 2125 static ssize_t usb_rapid_charge_store(struct device *dev, 2126 struct device_attribute *attr, 2127 const char *buf, size_t count) 2128 { 2129 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2130 int state; 2131 int ret; 2132 2133 ret = kstrtoint(buf, 0, &state); 2134 if (ret) 2135 return ret; 2136 if (state != 0 && state != 1) 2137 return -EINVAL; 2138 2139 ret = toshiba_usb_rapid_charge_set(toshiba, state); 2140 if (ret) 2141 return ret; 2142 2143 return count; 2144 } 2145 static DEVICE_ATTR_RW(usb_rapid_charge); 2146 2147 static ssize_t usb_sleep_music_show(struct device *dev, 2148 struct device_attribute *attr, char *buf) 2149 { 2150 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2151 u32 state; 2152 int ret; 2153 2154 ret = toshiba_usb_sleep_music_get(toshiba, &state); 2155 if (ret < 0) 2156 return ret; 2157 2158 return sprintf(buf, "%d\n", state); 2159 } 2160 2161 static ssize_t usb_sleep_music_store(struct device *dev, 2162 struct device_attribute *attr, 2163 const char *buf, size_t count) 2164 { 2165 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2166 int state; 2167 int ret; 2168 2169 ret = kstrtoint(buf, 0, &state); 2170 if (ret) 2171 return ret; 2172 if (state != 0 && state != 1) 2173 return -EINVAL; 2174 2175 ret = toshiba_usb_sleep_music_set(toshiba, state); 2176 if (ret) 2177 return ret; 2178 2179 return count; 2180 } 2181 static DEVICE_ATTR_RW(usb_sleep_music); 2182 2183 static ssize_t kbd_function_keys_show(struct device *dev, 2184 struct device_attribute *attr, char *buf) 2185 { 2186 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2187 int mode; 2188 int ret; 2189 2190 ret = toshiba_function_keys_get(toshiba, &mode); 2191 if (ret < 0) 2192 return ret; 2193 2194 return sprintf(buf, "%d\n", mode); 2195 } 2196 2197 static ssize_t kbd_function_keys_store(struct device *dev, 2198 struct device_attribute *attr, 2199 const char *buf, size_t count) 2200 { 2201 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2202 int mode; 2203 int ret; 2204 2205 ret = kstrtoint(buf, 0, &mode); 2206 if (ret) 2207 return ret; 2208 /* 2209 * Check for the function keys mode where: 2210 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12}) 2211 * 1 - Special functions (Opposite of the above setting) 2212 */ 2213 if (mode != 0 && mode != 1) 2214 return -EINVAL; 2215 2216 ret = toshiba_function_keys_set(toshiba, mode); 2217 if (ret) 2218 return ret; 2219 2220 pr_info("Reboot for changes to KBD Function Keys to take effect"); 2221 2222 return count; 2223 } 2224 static DEVICE_ATTR_RW(kbd_function_keys); 2225 2226 static ssize_t panel_power_on_show(struct device *dev, 2227 struct device_attribute *attr, char *buf) 2228 { 2229 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2230 u32 state; 2231 int ret; 2232 2233 ret = toshiba_panel_power_on_get(toshiba, &state); 2234 if (ret < 0) 2235 return ret; 2236 2237 return sprintf(buf, "%d\n", state); 2238 } 2239 2240 static ssize_t panel_power_on_store(struct device *dev, 2241 struct device_attribute *attr, 2242 const char *buf, size_t count) 2243 { 2244 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2245 int state; 2246 int ret; 2247 2248 ret = kstrtoint(buf, 0, &state); 2249 if (ret) 2250 return ret; 2251 if (state != 0 && state != 1) 2252 return -EINVAL; 2253 2254 ret = toshiba_panel_power_on_set(toshiba, state); 2255 if (ret) 2256 return ret; 2257 2258 pr_info("Reboot for changes to Panel Power ON to take effect"); 2259 2260 return count; 2261 } 2262 static DEVICE_ATTR_RW(panel_power_on); 2263 2264 static ssize_t usb_three_show(struct device *dev, 2265 struct device_attribute *attr, char *buf) 2266 { 2267 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2268 u32 state; 2269 int ret; 2270 2271 ret = toshiba_usb_three_get(toshiba, &state); 2272 if (ret < 0) 2273 return ret; 2274 2275 return sprintf(buf, "%d\n", state); 2276 } 2277 2278 static ssize_t usb_three_store(struct device *dev, 2279 struct device_attribute *attr, 2280 const char *buf, size_t count) 2281 { 2282 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2283 int state; 2284 int ret; 2285 2286 ret = kstrtoint(buf, 0, &state); 2287 if (ret) 2288 return ret; 2289 /* 2290 * Check for USB 3 mode where: 2291 * 0 - Disabled (Acts like a USB 2 port, saving power) 2292 * 1 - Enabled 2293 */ 2294 if (state != 0 && state != 1) 2295 return -EINVAL; 2296 2297 ret = toshiba_usb_three_set(toshiba, state); 2298 if (ret) 2299 return ret; 2300 2301 pr_info("Reboot for changes to USB 3 to take effect"); 2302 2303 return count; 2304 } 2305 static DEVICE_ATTR_RW(usb_three); 2306 2307 static ssize_t cooling_method_show(struct device *dev, 2308 struct device_attribute *attr, char *buf) 2309 { 2310 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2311 int state; 2312 int ret; 2313 2314 ret = toshiba_cooling_method_get(toshiba, &state); 2315 if (ret < 0) 2316 return ret; 2317 2318 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method); 2319 } 2320 2321 static ssize_t cooling_method_store(struct device *dev, 2322 struct device_attribute *attr, 2323 const char *buf, size_t count) 2324 { 2325 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2326 int state; 2327 int ret; 2328 2329 ret = kstrtoint(buf, 0, &state); 2330 if (ret) 2331 return ret; 2332 2333 /* 2334 * Check for supported values 2335 * Depending on the laptop model, some only support these two: 2336 * 0 - Maximum Performance 2337 * 1 - Battery Optimized 2338 * 2339 * While some others support all three methods: 2340 * 0 - Maximum Performance 2341 * 1 - Performance 2342 * 2 - Battery Optimized 2343 */ 2344 if (state < 0 || state > toshiba->max_cooling_method) 2345 return -EINVAL; 2346 2347 ret = toshiba_cooling_method_set(toshiba, state); 2348 if (ret) 2349 return ret; 2350 2351 return count; 2352 } 2353 static DEVICE_ATTR_RW(cooling_method); 2354 2355 static struct attribute *toshiba_attributes[] = { 2356 &dev_attr_version.attr, 2357 &dev_attr_fan.attr, 2358 &dev_attr_kbd_backlight_mode.attr, 2359 &dev_attr_kbd_type.attr, 2360 &dev_attr_available_kbd_modes.attr, 2361 &dev_attr_kbd_backlight_timeout.attr, 2362 &dev_attr_touchpad.attr, 2363 &dev_attr_usb_sleep_charge.attr, 2364 &dev_attr_sleep_functions_on_battery.attr, 2365 &dev_attr_usb_rapid_charge.attr, 2366 &dev_attr_usb_sleep_music.attr, 2367 &dev_attr_kbd_function_keys.attr, 2368 &dev_attr_panel_power_on.attr, 2369 &dev_attr_usb_three.attr, 2370 &dev_attr_cooling_method.attr, 2371 NULL, 2372 }; 2373 2374 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj, 2375 struct attribute *attr, int idx) 2376 { 2377 struct device *dev = container_of(kobj, struct device, kobj); 2378 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev); 2379 bool exists = true; 2380 2381 if (attr == &dev_attr_fan.attr) 2382 exists = (drv->fan_supported) ? true : false; 2383 else if (attr == &dev_attr_kbd_backlight_mode.attr) 2384 exists = (drv->kbd_illum_supported) ? true : false; 2385 else if (attr == &dev_attr_kbd_backlight_timeout.attr) 2386 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false; 2387 else if (attr == &dev_attr_touchpad.attr) 2388 exists = (drv->touchpad_supported) ? true : false; 2389 else if (attr == &dev_attr_usb_sleep_charge.attr) 2390 exists = (drv->usb_sleep_charge_supported) ? true : false; 2391 else if (attr == &dev_attr_sleep_functions_on_battery.attr) 2392 exists = (drv->usb_sleep_charge_supported) ? true : false; 2393 else if (attr == &dev_attr_usb_rapid_charge.attr) 2394 exists = (drv->usb_rapid_charge_supported) ? true : false; 2395 else if (attr == &dev_attr_usb_sleep_music.attr) 2396 exists = (drv->usb_sleep_music_supported) ? true : false; 2397 else if (attr == &dev_attr_kbd_function_keys.attr) 2398 exists = (drv->kbd_function_keys_supported) ? true : false; 2399 else if (attr == &dev_attr_panel_power_on.attr) 2400 exists = (drv->panel_power_on_supported) ? true : false; 2401 else if (attr == &dev_attr_usb_three.attr) 2402 exists = (drv->usb_three_supported) ? true : false; 2403 else if (attr == &dev_attr_cooling_method.attr) 2404 exists = (drv->cooling_method_supported) ? true : false; 2405 2406 return exists ? attr->mode : 0; 2407 } 2408 2409 static const struct attribute_group toshiba_attr_group = { 2410 .is_visible = toshiba_sysfs_is_visible, 2411 .attrs = toshiba_attributes, 2412 }; 2413 2414 static void toshiba_acpi_kbd_bl_work(struct work_struct *work) 2415 { 2416 struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev; 2417 2418 /* Update the sysfs entries */ 2419 if (sysfs_update_group(&acpi_dev->dev.kobj, 2420 &toshiba_attr_group)) 2421 pr_err("Unable to update sysfs entries\n"); 2422 2423 /* Emulate the keyboard backlight event */ 2424 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class, 2425 dev_name(&acpi_dev->dev), 2426 0x92, 0); 2427 } 2428 2429 /* 2430 * IIO device 2431 */ 2432 2433 enum toshiba_iio_accel_chan { 2434 AXIS_X, 2435 AXIS_Y, 2436 AXIS_Z 2437 }; 2438 2439 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan) 2440 { 2441 u32 xyval, zval; 2442 int ret; 2443 2444 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval); 2445 if (ret < 0) 2446 return ret; 2447 2448 switch (chan) { 2449 case AXIS_X: 2450 return xyval & HCI_ACCEL_DIRECTION_MASK ? 2451 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK; 2452 case AXIS_Y: 2453 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ? 2454 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) : 2455 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK; 2456 case AXIS_Z: 2457 return zval & HCI_ACCEL_DIRECTION_MASK ? 2458 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK; 2459 } 2460 2461 return ret; 2462 } 2463 2464 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev, 2465 struct iio_chan_spec const *chan, 2466 int *val, int *val2, long mask) 2467 { 2468 int ret; 2469 2470 switch (mask) { 2471 case IIO_CHAN_INFO_RAW: 2472 ret = toshiba_iio_accel_get_axis(chan->channel); 2473 if (ret == -EIO || ret == -ENODEV) 2474 return ret; 2475 2476 *val = ret; 2477 2478 return IIO_VAL_INT; 2479 } 2480 2481 return -EINVAL; 2482 } 2483 2484 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \ 2485 .type = IIO_ACCEL, \ 2486 .modified = 1, \ 2487 .channel = chan, \ 2488 .channel2 = IIO_MOD_##axis, \ 2489 .output = 1, \ 2490 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ 2491 } 2492 2493 static const struct iio_chan_spec toshiba_iio_accel_channels[] = { 2494 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X), 2495 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y), 2496 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z), 2497 }; 2498 2499 static const struct iio_info toshiba_iio_accel_info = { 2500 .read_raw = &toshiba_iio_accel_read_raw, 2501 }; 2502 2503 /* 2504 * Misc device 2505 */ 2506 static int toshiba_acpi_smm_bridge(SMMRegisters *regs) 2507 { 2508 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx, 2509 regs->edx, regs->esi, regs->edi }; 2510 u32 out[TCI_WORDS]; 2511 acpi_status status; 2512 2513 status = tci_raw(toshiba_acpi, in, out); 2514 if (ACPI_FAILURE(status)) { 2515 pr_err("ACPI call to query SMM registers failed\n"); 2516 return -EIO; 2517 } 2518 2519 /* Fillout the SMM struct with the TCI call results */ 2520 regs->eax = out[0]; 2521 regs->ebx = out[1]; 2522 regs->ecx = out[2]; 2523 regs->edx = out[3]; 2524 regs->esi = out[4]; 2525 regs->edi = out[5]; 2526 2527 return 0; 2528 } 2529 2530 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd, 2531 unsigned long arg) 2532 { 2533 SMMRegisters __user *argp = (SMMRegisters __user *)arg; 2534 SMMRegisters regs; 2535 int ret; 2536 2537 if (!argp) 2538 return -EINVAL; 2539 2540 switch (cmd) { 2541 case TOSH_SMM: 2542 if (copy_from_user(®s, argp, sizeof(SMMRegisters))) 2543 return -EFAULT; 2544 ret = toshiba_acpi_smm_bridge(®s); 2545 if (ret) 2546 return ret; 2547 if (copy_to_user(argp, ®s, sizeof(SMMRegisters))) 2548 return -EFAULT; 2549 break; 2550 case TOSHIBA_ACPI_SCI: 2551 if (copy_from_user(®s, argp, sizeof(SMMRegisters))) 2552 return -EFAULT; 2553 /* Ensure we are being called with a SCI_{GET, SET} register */ 2554 if (regs.eax != SCI_GET && regs.eax != SCI_SET) 2555 return -EINVAL; 2556 if (!sci_open(toshiba_acpi)) 2557 return -EIO; 2558 ret = toshiba_acpi_smm_bridge(®s); 2559 sci_close(toshiba_acpi); 2560 if (ret) 2561 return ret; 2562 if (copy_to_user(argp, ®s, sizeof(SMMRegisters))) 2563 return -EFAULT; 2564 break; 2565 default: 2566 return -EINVAL; 2567 } 2568 2569 return 0; 2570 } 2571 2572 static const struct file_operations toshiba_acpi_fops = { 2573 .owner = THIS_MODULE, 2574 .unlocked_ioctl = toshiba_acpi_ioctl, 2575 .llseek = noop_llseek, 2576 }; 2577 2578 /* 2579 * WWAN RFKill handlers 2580 */ 2581 static int toshiba_acpi_wwan_set_block(void *data, bool blocked) 2582 { 2583 struct toshiba_acpi_dev *dev = data; 2584 int ret; 2585 2586 ret = toshiba_wireless_status(dev); 2587 if (ret) 2588 return ret; 2589 2590 if (!dev->killswitch) 2591 return 0; 2592 2593 return toshiba_wwan_set(dev, !blocked); 2594 } 2595 2596 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data) 2597 { 2598 struct toshiba_acpi_dev *dev = data; 2599 2600 if (toshiba_wireless_status(dev)) 2601 return; 2602 2603 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); 2604 } 2605 2606 static const struct rfkill_ops wwan_rfk_ops = { 2607 .set_block = toshiba_acpi_wwan_set_block, 2608 .poll = toshiba_acpi_wwan_poll, 2609 }; 2610 2611 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev) 2612 { 2613 int ret = toshiba_wireless_status(dev); 2614 2615 if (ret) 2616 return ret; 2617 2618 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN", 2619 &dev->acpi_dev->dev, 2620 RFKILL_TYPE_WWAN, 2621 &wwan_rfk_ops, 2622 dev); 2623 if (!dev->wwan_rfk) { 2624 pr_err("Unable to allocate WWAN rfkill device\n"); 2625 return -ENOMEM; 2626 } 2627 2628 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); 2629 2630 ret = rfkill_register(dev->wwan_rfk); 2631 if (ret) { 2632 pr_err("Unable to register WWAN rfkill device\n"); 2633 rfkill_destroy(dev->wwan_rfk); 2634 } 2635 2636 return ret; 2637 } 2638 2639 /* 2640 * Hotkeys 2641 */ 2642 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev) 2643 { 2644 acpi_status status; 2645 u32 result; 2646 2647 status = acpi_evaluate_object(dev->acpi_dev->handle, 2648 "ENAB", NULL, NULL); 2649 if (ACPI_FAILURE(status)) 2650 return -ENODEV; 2651 2652 /* 2653 * Enable the "Special Functions" mode only if they are 2654 * supported and if they are activated. 2655 */ 2656 if (dev->kbd_function_keys_supported && dev->special_functions) 2657 result = hci_write(dev, HCI_HOTKEY_EVENT, 2658 HCI_HOTKEY_SPECIAL_FUNCTIONS); 2659 else 2660 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE); 2661 2662 if (result == TOS_FAILURE) 2663 return -EIO; 2664 else if (result == TOS_NOT_SUPPORTED) 2665 return -ENODEV; 2666 2667 return 0; 2668 } 2669 2670 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str, 2671 struct serio *port) 2672 { 2673 if (str & I8042_STR_AUXDATA) 2674 return false; 2675 2676 if (unlikely(data == 0xe0)) 2677 return false; 2678 2679 if ((data & 0x7f) == TOS1900_FN_SCAN) { 2680 schedule_work(&toshiba_acpi->hotkey_work); 2681 return true; 2682 } 2683 2684 return false; 2685 } 2686 2687 static void toshiba_acpi_hotkey_work(struct work_struct *work) 2688 { 2689 acpi_handle ec_handle = ec_get_handle(); 2690 acpi_status status; 2691 2692 if (!ec_handle) 2693 return; 2694 2695 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL); 2696 if (ACPI_FAILURE(status)) 2697 pr_err("ACPI NTFY method execution failed\n"); 2698 } 2699 2700 /* 2701 * Returns hotkey scancode, or < 0 on failure. 2702 */ 2703 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev) 2704 { 2705 unsigned long long value; 2706 acpi_status status; 2707 2708 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO", 2709 NULL, &value); 2710 if (ACPI_FAILURE(status)) { 2711 pr_err("ACPI INFO method execution failed\n"); 2712 return -EIO; 2713 } 2714 2715 return value; 2716 } 2717 2718 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev, 2719 int scancode) 2720 { 2721 if (scancode == 0x100) 2722 return; 2723 2724 /* Act on key press; ignore key release */ 2725 if (scancode & 0x80) 2726 return; 2727 2728 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true)) 2729 pr_info("Unknown key %x\n", scancode); 2730 } 2731 2732 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev) 2733 { 2734 if (dev->info_supported) { 2735 int scancode = toshiba_acpi_query_hotkey(dev); 2736 2737 if (scancode < 0) { 2738 pr_err("Failed to query hotkey event\n"); 2739 } else if (scancode != 0) { 2740 toshiba_acpi_report_hotkey(dev, scancode); 2741 dev->key_event_valid = 1; 2742 dev->last_key_event = scancode; 2743 } 2744 } else if (dev->system_event_supported) { 2745 u32 result; 2746 u32 value; 2747 int retries = 3; 2748 2749 do { 2750 result = hci_read(dev, HCI_SYSTEM_EVENT, &value); 2751 switch (result) { 2752 case TOS_SUCCESS: 2753 toshiba_acpi_report_hotkey(dev, (int)value); 2754 dev->key_event_valid = 1; 2755 dev->last_key_event = value; 2756 break; 2757 case TOS_NOT_SUPPORTED: 2758 /* 2759 * This is a workaround for an unresolved 2760 * issue on some machines where system events 2761 * sporadically become disabled. 2762 */ 2763 result = hci_write(dev, HCI_SYSTEM_EVENT, 1); 2764 if (result == TOS_SUCCESS) 2765 pr_notice("Re-enabled hotkeys\n"); 2766 /* Fall through */ 2767 default: 2768 retries--; 2769 break; 2770 } 2771 } while (retries && result != TOS_FIFO_EMPTY); 2772 } 2773 } 2774 2775 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev) 2776 { 2777 const struct key_entry *keymap = toshiba_acpi_keymap; 2778 acpi_handle ec_handle; 2779 int error; 2780 2781 if (disable_hotkeys) { 2782 pr_info("Hotkeys disabled by module parameter\n"); 2783 return 0; 2784 } 2785 2786 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) { 2787 pr_info("WMI event detected, hotkeys will not be monitored\n"); 2788 return 0; 2789 } 2790 2791 error = toshiba_acpi_enable_hotkeys(dev); 2792 if (error) 2793 return error; 2794 2795 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type)) 2796 pr_notice("Unable to query Hotkey Event Type\n"); 2797 2798 dev->hotkey_dev = input_allocate_device(); 2799 if (!dev->hotkey_dev) 2800 return -ENOMEM; 2801 2802 dev->hotkey_dev->name = "Toshiba input device"; 2803 dev->hotkey_dev->phys = "toshiba_acpi/input0"; 2804 dev->hotkey_dev->id.bustype = BUS_HOST; 2805 2806 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 || 2807 !dev->kbd_function_keys_supported) 2808 keymap = toshiba_acpi_keymap; 2809 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 || 2810 dev->kbd_function_keys_supported) 2811 keymap = toshiba_acpi_alt_keymap; 2812 else 2813 pr_info("Unknown event type received %x\n", 2814 dev->hotkey_event_type); 2815 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL); 2816 if (error) 2817 goto err_free_dev; 2818 2819 /* 2820 * For some machines the SCI responsible for providing hotkey 2821 * notification doesn't fire. We can trigger the notification 2822 * whenever the Fn key is pressed using the NTFY method, if 2823 * supported, so if it's present set up an i8042 key filter 2824 * for this purpose. 2825 */ 2826 ec_handle = ec_get_handle(); 2827 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) { 2828 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work); 2829 2830 error = i8042_install_filter(toshiba_acpi_i8042_filter); 2831 if (error) { 2832 pr_err("Error installing key filter\n"); 2833 goto err_free_dev; 2834 } 2835 2836 dev->ntfy_supported = 1; 2837 } 2838 2839 /* 2840 * Determine hotkey query interface. Prefer using the INFO 2841 * method when it is available. 2842 */ 2843 if (acpi_has_method(dev->acpi_dev->handle, "INFO")) 2844 dev->info_supported = 1; 2845 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS) 2846 dev->system_event_supported = 1; 2847 2848 if (!dev->info_supported && !dev->system_event_supported) { 2849 pr_warn("No hotkey query interface found\n"); 2850 goto err_remove_filter; 2851 } 2852 2853 error = input_register_device(dev->hotkey_dev); 2854 if (error) { 2855 pr_info("Unable to register input device\n"); 2856 goto err_remove_filter; 2857 } 2858 2859 return 0; 2860 2861 err_remove_filter: 2862 if (dev->ntfy_supported) 2863 i8042_remove_filter(toshiba_acpi_i8042_filter); 2864 err_free_dev: 2865 input_free_device(dev->hotkey_dev); 2866 dev->hotkey_dev = NULL; 2867 return error; 2868 } 2869 2870 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev) 2871 { 2872 struct backlight_properties props; 2873 int brightness; 2874 int ret; 2875 2876 /* 2877 * Some machines don't support the backlight methods at all, and 2878 * others support it read-only. Either of these is pretty useless, 2879 * so only register the backlight device if the backlight method 2880 * supports both reads and writes. 2881 */ 2882 brightness = __get_lcd_brightness(dev); 2883 if (brightness < 0) 2884 return 0; 2885 /* 2886 * If transflective backlight is supported and the brightness is zero 2887 * (lowest brightness level), the set_lcd_brightness function will 2888 * activate the transflective backlight, making the LCD appear to be 2889 * turned off, simply increment the brightness level to avoid that. 2890 */ 2891 if (dev->tr_backlight_supported && brightness == 0) 2892 brightness++; 2893 ret = set_lcd_brightness(dev, brightness); 2894 if (ret) { 2895 pr_debug("Backlight method is read-only, disabling backlight support\n"); 2896 return 0; 2897 } 2898 2899 /* 2900 * Tell acpi-video-detect code to prefer vendor backlight on all 2901 * systems with transflective backlight and on dmi matched systems. 2902 */ 2903 if (dev->tr_backlight_supported || 2904 dmi_check_system(toshiba_vendor_backlight_dmi)) 2905 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor); 2906 2907 if (acpi_video_get_backlight_type() != acpi_backlight_vendor) 2908 return 0; 2909 2910 memset(&props, 0, sizeof(props)); 2911 props.type = BACKLIGHT_PLATFORM; 2912 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1; 2913 2914 /* Adding an extra level and having 0 change to transflective mode */ 2915 if (dev->tr_backlight_supported) 2916 props.max_brightness++; 2917 2918 dev->backlight_dev = backlight_device_register("toshiba", 2919 &dev->acpi_dev->dev, 2920 dev, 2921 &toshiba_backlight_data, 2922 &props); 2923 if (IS_ERR(dev->backlight_dev)) { 2924 ret = PTR_ERR(dev->backlight_dev); 2925 pr_err("Could not register toshiba backlight device\n"); 2926 dev->backlight_dev = NULL; 2927 return ret; 2928 } 2929 2930 dev->backlight_dev->props.brightness = brightness; 2931 return 0; 2932 } 2933 2934 static void print_supported_features(struct toshiba_acpi_dev *dev) 2935 { 2936 pr_info("Supported laptop features:"); 2937 2938 if (dev->hotkey_dev) 2939 pr_cont(" hotkeys"); 2940 if (dev->backlight_dev) 2941 pr_cont(" backlight"); 2942 if (dev->video_supported) 2943 pr_cont(" video-out"); 2944 if (dev->fan_supported) 2945 pr_cont(" fan"); 2946 if (dev->tr_backlight_supported) 2947 pr_cont(" transflective-backlight"); 2948 if (dev->illumination_supported) 2949 pr_cont(" illumination"); 2950 if (dev->kbd_illum_supported) 2951 pr_cont(" keyboard-backlight"); 2952 if (dev->touchpad_supported) 2953 pr_cont(" touchpad"); 2954 if (dev->eco_supported) 2955 pr_cont(" eco-led"); 2956 if (dev->accelerometer_supported) 2957 pr_cont(" accelerometer-axes"); 2958 if (dev->usb_sleep_charge_supported) 2959 pr_cont(" usb-sleep-charge"); 2960 if (dev->usb_rapid_charge_supported) 2961 pr_cont(" usb-rapid-charge"); 2962 if (dev->usb_sleep_music_supported) 2963 pr_cont(" usb-sleep-music"); 2964 if (dev->kbd_function_keys_supported) 2965 pr_cont(" special-function-keys"); 2966 if (dev->panel_power_on_supported) 2967 pr_cont(" panel-power-on"); 2968 if (dev->usb_three_supported) 2969 pr_cont(" usb3"); 2970 if (dev->wwan_supported) 2971 pr_cont(" wwan"); 2972 if (dev->cooling_method_supported) 2973 pr_cont(" cooling-method"); 2974 2975 pr_cont("\n"); 2976 } 2977 2978 static int toshiba_acpi_remove(struct acpi_device *acpi_dev) 2979 { 2980 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev); 2981 2982 misc_deregister(&dev->miscdev); 2983 2984 remove_toshiba_proc_entries(dev); 2985 2986 if (dev->accelerometer_supported && dev->indio_dev) { 2987 iio_device_unregister(dev->indio_dev); 2988 iio_device_free(dev->indio_dev); 2989 } 2990 2991 if (dev->sysfs_created) 2992 sysfs_remove_group(&dev->acpi_dev->dev.kobj, 2993 &toshiba_attr_group); 2994 2995 if (dev->ntfy_supported) { 2996 i8042_remove_filter(toshiba_acpi_i8042_filter); 2997 cancel_work_sync(&dev->hotkey_work); 2998 } 2999 3000 if (dev->hotkey_dev) 3001 input_unregister_device(dev->hotkey_dev); 3002 3003 backlight_device_unregister(dev->backlight_dev); 3004 3005 if (dev->illumination_led_registered) 3006 led_classdev_unregister(&dev->led_dev); 3007 3008 if (dev->kbd_led_registered) 3009 led_classdev_unregister(&dev->kbd_led); 3010 3011 if (dev->eco_led_registered) 3012 led_classdev_unregister(&dev->eco_led); 3013 3014 if (dev->wwan_rfk) { 3015 rfkill_unregister(dev->wwan_rfk); 3016 rfkill_destroy(dev->wwan_rfk); 3017 } 3018 3019 if (toshiba_acpi) 3020 toshiba_acpi = NULL; 3021 3022 kfree(dev); 3023 3024 return 0; 3025 } 3026 3027 static const char *find_hci_method(acpi_handle handle) 3028 { 3029 if (acpi_has_method(handle, "GHCI")) 3030 return "GHCI"; 3031 3032 if (acpi_has_method(handle, "SPFC")) 3033 return "SPFC"; 3034 3035 return NULL; 3036 } 3037 3038 static int toshiba_acpi_add(struct acpi_device *acpi_dev) 3039 { 3040 struct toshiba_acpi_dev *dev; 3041 const char *hci_method; 3042 u32 dummy; 3043 int ret = 0; 3044 3045 if (toshiba_acpi) 3046 return -EBUSY; 3047 3048 pr_info("Toshiba Laptop ACPI Extras version %s\n", 3049 TOSHIBA_ACPI_VERSION); 3050 3051 hci_method = find_hci_method(acpi_dev->handle); 3052 if (!hci_method) { 3053 pr_err("HCI interface not found\n"); 3054 return -ENODEV; 3055 } 3056 3057 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 3058 if (!dev) 3059 return -ENOMEM; 3060 dev->acpi_dev = acpi_dev; 3061 dev->method_hci = hci_method; 3062 dev->miscdev.minor = MISC_DYNAMIC_MINOR; 3063 dev->miscdev.name = "toshiba_acpi"; 3064 dev->miscdev.fops = &toshiba_acpi_fops; 3065 3066 ret = misc_register(&dev->miscdev); 3067 if (ret) { 3068 pr_err("Failed to register miscdevice\n"); 3069 kfree(dev); 3070 return ret; 3071 } 3072 3073 acpi_dev->driver_data = dev; 3074 dev_set_drvdata(&acpi_dev->dev, dev); 3075 3076 /* Query the BIOS for supported features */ 3077 3078 /* 3079 * The "Special Functions" are always supported by the laptops 3080 * with the new keyboard layout, query for its presence to help 3081 * determine the keymap layout to use. 3082 */ 3083 ret = toshiba_function_keys_get(dev, &dev->special_functions); 3084 dev->kbd_function_keys_supported = !ret; 3085 3086 dev->hotkey_event_type = 0; 3087 if (toshiba_acpi_setup_keyboard(dev)) 3088 pr_info("Unable to activate hotkeys\n"); 3089 3090 /* Determine whether or not BIOS supports transflective backlight */ 3091 ret = get_tr_backlight_status(dev, &dummy); 3092 dev->tr_backlight_supported = !ret; 3093 3094 ret = toshiba_acpi_setup_backlight(dev); 3095 if (ret) 3096 goto error; 3097 3098 toshiba_illumination_available(dev); 3099 if (dev->illumination_supported) { 3100 dev->led_dev.name = "toshiba::illumination"; 3101 dev->led_dev.max_brightness = 1; 3102 dev->led_dev.brightness_set = toshiba_illumination_set; 3103 dev->led_dev.brightness_get = toshiba_illumination_get; 3104 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev)) 3105 dev->illumination_led_registered = true; 3106 } 3107 3108 toshiba_eco_mode_available(dev); 3109 if (dev->eco_supported) { 3110 dev->eco_led.name = "toshiba::eco_mode"; 3111 dev->eco_led.max_brightness = 1; 3112 dev->eco_led.brightness_set = toshiba_eco_mode_set_status; 3113 dev->eco_led.brightness_get = toshiba_eco_mode_get_status; 3114 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led)) 3115 dev->eco_led_registered = true; 3116 } 3117 3118 toshiba_kbd_illum_available(dev); 3119 /* 3120 * Only register the LED if KBD illumination is supported 3121 * and the keyboard backlight operation mode is set to FN-Z 3122 */ 3123 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) { 3124 dev->kbd_led.name = "toshiba::kbd_backlight"; 3125 dev->kbd_led.max_brightness = 1; 3126 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set; 3127 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get; 3128 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led)) 3129 dev->kbd_led_registered = true; 3130 } 3131 3132 ret = toshiba_touchpad_get(dev, &dummy); 3133 dev->touchpad_supported = !ret; 3134 3135 toshiba_accelerometer_available(dev); 3136 if (dev->accelerometer_supported) { 3137 dev->indio_dev = iio_device_alloc(sizeof(*dev)); 3138 if (!dev->indio_dev) { 3139 pr_err("Unable to allocate iio device\n"); 3140 goto iio_error; 3141 } 3142 3143 pr_info("Registering Toshiba accelerometer iio device\n"); 3144 3145 dev->indio_dev->info = &toshiba_iio_accel_info; 3146 dev->indio_dev->name = "Toshiba accelerometer"; 3147 dev->indio_dev->dev.parent = &acpi_dev->dev; 3148 dev->indio_dev->modes = INDIO_DIRECT_MODE; 3149 dev->indio_dev->channels = toshiba_iio_accel_channels; 3150 dev->indio_dev->num_channels = 3151 ARRAY_SIZE(toshiba_iio_accel_channels); 3152 3153 ret = iio_device_register(dev->indio_dev); 3154 if (ret < 0) { 3155 pr_err("Unable to register iio device\n"); 3156 iio_device_free(dev->indio_dev); 3157 } 3158 } 3159 iio_error: 3160 3161 toshiba_usb_sleep_charge_available(dev); 3162 3163 ret = toshiba_usb_rapid_charge_get(dev, &dummy); 3164 dev->usb_rapid_charge_supported = !ret; 3165 3166 ret = toshiba_usb_sleep_music_get(dev, &dummy); 3167 dev->usb_sleep_music_supported = !ret; 3168 3169 ret = toshiba_panel_power_on_get(dev, &dummy); 3170 dev->panel_power_on_supported = !ret; 3171 3172 ret = toshiba_usb_three_get(dev, &dummy); 3173 dev->usb_three_supported = !ret; 3174 3175 ret = get_video_status(dev, &dummy); 3176 dev->video_supported = !ret; 3177 3178 ret = get_fan_status(dev, &dummy); 3179 dev->fan_supported = !ret; 3180 3181 toshiba_wwan_available(dev); 3182 if (dev->wwan_supported) 3183 toshiba_acpi_setup_wwan_rfkill(dev); 3184 3185 toshiba_cooling_method_available(dev); 3186 3187 print_supported_features(dev); 3188 3189 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj, 3190 &toshiba_attr_group); 3191 if (ret) { 3192 dev->sysfs_created = 0; 3193 goto error; 3194 } 3195 dev->sysfs_created = !ret; 3196 3197 create_toshiba_proc_entries(dev); 3198 3199 toshiba_acpi = dev; 3200 3201 return 0; 3202 3203 error: 3204 toshiba_acpi_remove(acpi_dev); 3205 return ret; 3206 } 3207 3208 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event) 3209 { 3210 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev); 3211 3212 switch (event) { 3213 case 0x80: /* Hotkeys and some system events */ 3214 /* 3215 * Machines with this WMI GUID aren't supported due to bugs in 3216 * their AML. 3217 * 3218 * Return silently to avoid triggering a netlink event. 3219 */ 3220 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) 3221 return; 3222 toshiba_acpi_process_hotkeys(dev); 3223 break; 3224 case 0x81: /* Dock events */ 3225 case 0x82: 3226 case 0x83: 3227 pr_info("Dock event received %x\n", event); 3228 break; 3229 case 0x88: /* Thermal events */ 3230 pr_info("Thermal event received\n"); 3231 break; 3232 case 0x8f: /* LID closed */ 3233 case 0x90: /* LID is closed and Dock has been ejected */ 3234 break; 3235 case 0x8c: /* SATA power events */ 3236 case 0x8b: 3237 pr_info("SATA power event received %x\n", event); 3238 break; 3239 case 0x92: /* Keyboard backlight mode changed */ 3240 toshiba_acpi->kbd_event_generated = true; 3241 /* Update sysfs entries */ 3242 if (sysfs_update_group(&acpi_dev->dev.kobj, 3243 &toshiba_attr_group)) 3244 pr_err("Unable to update sysfs entries\n"); 3245 break; 3246 case 0x85: /* Unknown */ 3247 case 0x8d: /* Unknown */ 3248 case 0x8e: /* Unknown */ 3249 case 0x94: /* Unknown */ 3250 case 0x95: /* Unknown */ 3251 default: 3252 pr_info("Unknown event received %x\n", event); 3253 break; 3254 } 3255 3256 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class, 3257 dev_name(&acpi_dev->dev), 3258 event, (event == 0x80) ? 3259 dev->last_key_event : 0); 3260 } 3261 3262 #ifdef CONFIG_PM_SLEEP 3263 static int toshiba_acpi_suspend(struct device *device) 3264 { 3265 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device)); 3266 3267 if (dev->hotkey_dev) { 3268 u32 result; 3269 3270 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE); 3271 if (result != TOS_SUCCESS) 3272 pr_info("Unable to disable hotkeys\n"); 3273 } 3274 3275 return 0; 3276 } 3277 3278 static int toshiba_acpi_resume(struct device *device) 3279 { 3280 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device)); 3281 3282 if (dev->hotkey_dev) { 3283 if (toshiba_acpi_enable_hotkeys(dev)) 3284 pr_info("Unable to re-enable hotkeys\n"); 3285 } 3286 3287 if (dev->wwan_rfk) { 3288 if (!toshiba_wireless_status(dev)) 3289 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); 3290 } 3291 3292 return 0; 3293 } 3294 #endif 3295 3296 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm, 3297 toshiba_acpi_suspend, toshiba_acpi_resume); 3298 3299 static struct acpi_driver toshiba_acpi_driver = { 3300 .name = "Toshiba ACPI driver", 3301 .owner = THIS_MODULE, 3302 .ids = toshiba_device_ids, 3303 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, 3304 .ops = { 3305 .add = toshiba_acpi_add, 3306 .remove = toshiba_acpi_remove, 3307 .notify = toshiba_acpi_notify, 3308 }, 3309 .drv.pm = &toshiba_acpi_pm, 3310 }; 3311 3312 static int __init toshiba_acpi_init(void) 3313 { 3314 int ret; 3315 3316 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir); 3317 if (!toshiba_proc_dir) { 3318 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n"); 3319 return -ENODEV; 3320 } 3321 3322 ret = acpi_bus_register_driver(&toshiba_acpi_driver); 3323 if (ret) { 3324 pr_err("Failed to register ACPI driver: %d\n", ret); 3325 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); 3326 } 3327 3328 return ret; 3329 } 3330 3331 static void __exit toshiba_acpi_exit(void) 3332 { 3333 acpi_bus_unregister_driver(&toshiba_acpi_driver); 3334 if (toshiba_proc_dir) 3335 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); 3336 } 3337 3338 module_init(toshiba_acpi_init); 3339 module_exit(toshiba_acpi_exit); 3340