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 static int version_proc_open(struct inode *inode, struct file *file) 1693 { 1694 return single_open(file, version_proc_show, PDE_DATA(inode)); 1695 } 1696 1697 static const struct file_operations version_proc_fops = { 1698 .owner = THIS_MODULE, 1699 .open = version_proc_open, 1700 .read = seq_read, 1701 .llseek = seq_lseek, 1702 .release = single_release, 1703 }; 1704 1705 /* 1706 * Proc and module init 1707 */ 1708 1709 #define PROC_TOSHIBA "toshiba" 1710 1711 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev) 1712 { 1713 if (dev->backlight_dev) 1714 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1715 &lcd_proc_fops, dev); 1716 if (dev->video_supported) 1717 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1718 &video_proc_fops, dev); 1719 if (dev->fan_supported) 1720 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1721 &fan_proc_fops, dev); 1722 if (dev->hotkey_dev) 1723 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1724 &keys_proc_fops, dev); 1725 proc_create_data("version", S_IRUGO, toshiba_proc_dir, 1726 &version_proc_fops, dev); 1727 } 1728 1729 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev) 1730 { 1731 if (dev->backlight_dev) 1732 remove_proc_entry("lcd", toshiba_proc_dir); 1733 if (dev->video_supported) 1734 remove_proc_entry("video", toshiba_proc_dir); 1735 if (dev->fan_supported) 1736 remove_proc_entry("fan", toshiba_proc_dir); 1737 if (dev->hotkey_dev) 1738 remove_proc_entry("keys", toshiba_proc_dir); 1739 remove_proc_entry("version", toshiba_proc_dir); 1740 } 1741 1742 static const struct backlight_ops toshiba_backlight_data = { 1743 .options = BL_CORE_SUSPENDRESUME, 1744 .get_brightness = get_lcd_brightness, 1745 .update_status = set_lcd_status, 1746 }; 1747 1748 /* Keyboard backlight work */ 1749 static void toshiba_acpi_kbd_bl_work(struct work_struct *work); 1750 1751 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work); 1752 1753 /* 1754 * Sysfs files 1755 */ 1756 static ssize_t version_show(struct device *dev, 1757 struct device_attribute *attr, char *buf) 1758 { 1759 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION); 1760 } 1761 static DEVICE_ATTR_RO(version); 1762 1763 static ssize_t fan_store(struct device *dev, 1764 struct device_attribute *attr, 1765 const char *buf, size_t count) 1766 { 1767 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1768 int state; 1769 int ret; 1770 1771 ret = kstrtoint(buf, 0, &state); 1772 if (ret) 1773 return ret; 1774 1775 if (state != 0 && state != 1) 1776 return -EINVAL; 1777 1778 ret = set_fan_status(toshiba, state); 1779 if (ret) 1780 return ret; 1781 1782 return count; 1783 } 1784 1785 static ssize_t fan_show(struct device *dev, 1786 struct device_attribute *attr, char *buf) 1787 { 1788 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1789 u32 value; 1790 int ret; 1791 1792 ret = get_fan_status(toshiba, &value); 1793 if (ret) 1794 return ret; 1795 1796 return sprintf(buf, "%d\n", value); 1797 } 1798 static DEVICE_ATTR_RW(fan); 1799 1800 static ssize_t kbd_backlight_mode_store(struct device *dev, 1801 struct device_attribute *attr, 1802 const char *buf, size_t count) 1803 { 1804 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1805 int mode; 1806 int ret; 1807 1808 1809 ret = kstrtoint(buf, 0, &mode); 1810 if (ret) 1811 return ret; 1812 1813 /* Check for supported modes depending on keyboard backlight type */ 1814 if (toshiba->kbd_type == 1) { 1815 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */ 1816 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO) 1817 return -EINVAL; 1818 } else if (toshiba->kbd_type == 2) { 1819 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */ 1820 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON && 1821 mode != SCI_KBD_MODE_OFF) 1822 return -EINVAL; 1823 } 1824 1825 /* 1826 * Set the Keyboard Backlight Mode where: 1827 * Auto - KBD backlight turns off automatically in given time 1828 * FN-Z - KBD backlight "toggles" when hotkey pressed 1829 * ON - KBD backlight is always on 1830 * OFF - KBD backlight is always off 1831 */ 1832 1833 /* Only make a change if the actual mode has changed */ 1834 if (toshiba->kbd_mode != mode) { 1835 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */ 1836 int time = toshiba->kbd_time << HCI_MISC_SHIFT; 1837 1838 /* OR the "base time" to the actual method format */ 1839 if (toshiba->kbd_type == 1) { 1840 /* Type 1 requires the current mode */ 1841 time |= toshiba->kbd_mode; 1842 } else if (toshiba->kbd_type == 2) { 1843 /* Type 2 requires the desired mode */ 1844 time |= mode; 1845 } 1846 1847 ret = toshiba_kbd_illum_status_set(toshiba, time); 1848 if (ret) 1849 return ret; 1850 1851 toshiba->kbd_mode = mode; 1852 1853 /* 1854 * Some laptop models with the second generation backlit 1855 * keyboard (type 2) do not generate the keyboard backlight 1856 * changed event (0x92), and thus, the driver will never update 1857 * the sysfs entries. 1858 * 1859 * The event is generated right when changing the keyboard 1860 * backlight mode and the *notify function will set the 1861 * kbd_event_generated to true. 1862 * 1863 * In case the event is not generated, schedule the keyboard 1864 * backlight work to update the sysfs entries and emulate the 1865 * event via genetlink. 1866 */ 1867 if (toshiba->kbd_type == 2 && 1868 !toshiba_acpi->kbd_event_generated) 1869 schedule_work(&kbd_bl_work); 1870 } 1871 1872 return count; 1873 } 1874 1875 static ssize_t kbd_backlight_mode_show(struct device *dev, 1876 struct device_attribute *attr, 1877 char *buf) 1878 { 1879 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1880 u32 time; 1881 1882 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0) 1883 return -EIO; 1884 1885 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK); 1886 } 1887 static DEVICE_ATTR_RW(kbd_backlight_mode); 1888 1889 static ssize_t kbd_type_show(struct device *dev, 1890 struct device_attribute *attr, char *buf) 1891 { 1892 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1893 1894 return sprintf(buf, "%d\n", toshiba->kbd_type); 1895 } 1896 static DEVICE_ATTR_RO(kbd_type); 1897 1898 static ssize_t available_kbd_modes_show(struct device *dev, 1899 struct device_attribute *attr, 1900 char *buf) 1901 { 1902 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1903 1904 if (toshiba->kbd_type == 1) 1905 return sprintf(buf, "0x%x 0x%x\n", 1906 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO); 1907 1908 return sprintf(buf, "0x%x 0x%x 0x%x\n", 1909 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF); 1910 } 1911 static DEVICE_ATTR_RO(available_kbd_modes); 1912 1913 static ssize_t kbd_backlight_timeout_store(struct device *dev, 1914 struct device_attribute *attr, 1915 const char *buf, size_t count) 1916 { 1917 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1918 int time; 1919 int ret; 1920 1921 ret = kstrtoint(buf, 0, &time); 1922 if (ret) 1923 return ret; 1924 1925 /* Check for supported values depending on kbd_type */ 1926 if (toshiba->kbd_type == 1) { 1927 if (time < 0 || time > 60) 1928 return -EINVAL; 1929 } else if (toshiba->kbd_type == 2) { 1930 if (time < 1 || time > 60) 1931 return -EINVAL; 1932 } 1933 1934 /* Set the Keyboard Backlight Timeout */ 1935 1936 /* Only make a change if the actual timeout has changed */ 1937 if (toshiba->kbd_time != time) { 1938 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */ 1939 time = time << HCI_MISC_SHIFT; 1940 /* OR the "base time" to the actual method format */ 1941 if (toshiba->kbd_type == 1) 1942 time |= SCI_KBD_MODE_FNZ; 1943 else if (toshiba->kbd_type == 2) 1944 time |= SCI_KBD_MODE_AUTO; 1945 1946 ret = toshiba_kbd_illum_status_set(toshiba, time); 1947 if (ret) 1948 return ret; 1949 1950 toshiba->kbd_time = time >> HCI_MISC_SHIFT; 1951 } 1952 1953 return count; 1954 } 1955 1956 static ssize_t kbd_backlight_timeout_show(struct device *dev, 1957 struct device_attribute *attr, 1958 char *buf) 1959 { 1960 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1961 u32 time; 1962 1963 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0) 1964 return -EIO; 1965 1966 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT); 1967 } 1968 static DEVICE_ATTR_RW(kbd_backlight_timeout); 1969 1970 static ssize_t touchpad_store(struct device *dev, 1971 struct device_attribute *attr, 1972 const char *buf, size_t count) 1973 { 1974 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1975 int state; 1976 int ret; 1977 1978 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */ 1979 ret = kstrtoint(buf, 0, &state); 1980 if (ret) 1981 return ret; 1982 if (state != 0 && state != 1) 1983 return -EINVAL; 1984 1985 ret = toshiba_touchpad_set(toshiba, state); 1986 if (ret) 1987 return ret; 1988 1989 return count; 1990 } 1991 1992 static ssize_t touchpad_show(struct device *dev, 1993 struct device_attribute *attr, char *buf) 1994 { 1995 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1996 u32 state; 1997 int ret; 1998 1999 ret = toshiba_touchpad_get(toshiba, &state); 2000 if (ret < 0) 2001 return ret; 2002 2003 return sprintf(buf, "%i\n", state); 2004 } 2005 static DEVICE_ATTR_RW(touchpad); 2006 2007 static ssize_t usb_sleep_charge_show(struct device *dev, 2008 struct device_attribute *attr, char *buf) 2009 { 2010 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2011 u32 mode; 2012 int ret; 2013 2014 ret = toshiba_usb_sleep_charge_get(toshiba, &mode); 2015 if (ret < 0) 2016 return ret; 2017 2018 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK); 2019 } 2020 2021 static ssize_t usb_sleep_charge_store(struct device *dev, 2022 struct device_attribute *attr, 2023 const char *buf, size_t count) 2024 { 2025 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2026 int state; 2027 u32 mode; 2028 int ret; 2029 2030 ret = kstrtoint(buf, 0, &state); 2031 if (ret) 2032 return ret; 2033 /* 2034 * Check for supported values, where: 2035 * 0 - Disabled 2036 * 1 - Alternate (Non USB conformant devices that require more power) 2037 * 2 - Auto (USB conformant devices) 2038 * 3 - Typical 2039 */ 2040 if (state != 0 && state != 1 && state != 2 && state != 3) 2041 return -EINVAL; 2042 2043 /* Set the USB charging mode to internal value */ 2044 mode = toshiba->usbsc_mode_base; 2045 if (state == 0) 2046 mode |= SCI_USB_CHARGE_DISABLED; 2047 else if (state == 1) 2048 mode |= SCI_USB_CHARGE_ALTERNATE; 2049 else if (state == 2) 2050 mode |= SCI_USB_CHARGE_AUTO; 2051 else if (state == 3) 2052 mode |= SCI_USB_CHARGE_TYPICAL; 2053 2054 ret = toshiba_usb_sleep_charge_set(toshiba, mode); 2055 if (ret) 2056 return ret; 2057 2058 return count; 2059 } 2060 static DEVICE_ATTR_RW(usb_sleep_charge); 2061 2062 static ssize_t sleep_functions_on_battery_show(struct device *dev, 2063 struct device_attribute *attr, 2064 char *buf) 2065 { 2066 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2067 int bat_lvl, status; 2068 u32 state; 2069 int ret; 2070 int tmp; 2071 2072 ret = toshiba_sleep_functions_status_get(toshiba, &state); 2073 if (ret < 0) 2074 return ret; 2075 2076 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */ 2077 tmp = state & SCI_USB_CHARGE_BAT_MASK; 2078 status = (tmp == 0x4) ? 1 : 0; 2079 /* Determine the battery level set */ 2080 bat_lvl = state >> HCI_MISC_SHIFT; 2081 2082 return sprintf(buf, "%d %d\n", status, bat_lvl); 2083 } 2084 2085 static ssize_t sleep_functions_on_battery_store(struct device *dev, 2086 struct device_attribute *attr, 2087 const char *buf, size_t count) 2088 { 2089 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2090 u32 status; 2091 int value; 2092 int ret; 2093 int tmp; 2094 2095 ret = kstrtoint(buf, 0, &value); 2096 if (ret) 2097 return ret; 2098 2099 /* 2100 * Set the status of the function: 2101 * 0 - Disabled 2102 * 1-100 - Enabled 2103 */ 2104 if (value < 0 || value > 100) 2105 return -EINVAL; 2106 2107 if (value == 0) { 2108 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT; 2109 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF; 2110 } else { 2111 tmp = value << HCI_MISC_SHIFT; 2112 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON; 2113 } 2114 ret = toshiba_sleep_functions_status_set(toshiba, status); 2115 if (ret < 0) 2116 return ret; 2117 2118 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT; 2119 2120 return count; 2121 } 2122 static DEVICE_ATTR_RW(sleep_functions_on_battery); 2123 2124 static ssize_t usb_rapid_charge_show(struct device *dev, 2125 struct device_attribute *attr, char *buf) 2126 { 2127 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2128 u32 state; 2129 int ret; 2130 2131 ret = toshiba_usb_rapid_charge_get(toshiba, &state); 2132 if (ret < 0) 2133 return ret; 2134 2135 return sprintf(buf, "%d\n", state); 2136 } 2137 2138 static ssize_t usb_rapid_charge_store(struct device *dev, 2139 struct device_attribute *attr, 2140 const char *buf, size_t count) 2141 { 2142 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2143 int state; 2144 int ret; 2145 2146 ret = kstrtoint(buf, 0, &state); 2147 if (ret) 2148 return ret; 2149 if (state != 0 && state != 1) 2150 return -EINVAL; 2151 2152 ret = toshiba_usb_rapid_charge_set(toshiba, state); 2153 if (ret) 2154 return ret; 2155 2156 return count; 2157 } 2158 static DEVICE_ATTR_RW(usb_rapid_charge); 2159 2160 static ssize_t usb_sleep_music_show(struct device *dev, 2161 struct device_attribute *attr, char *buf) 2162 { 2163 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2164 u32 state; 2165 int ret; 2166 2167 ret = toshiba_usb_sleep_music_get(toshiba, &state); 2168 if (ret < 0) 2169 return ret; 2170 2171 return sprintf(buf, "%d\n", state); 2172 } 2173 2174 static ssize_t usb_sleep_music_store(struct device *dev, 2175 struct device_attribute *attr, 2176 const char *buf, size_t count) 2177 { 2178 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2179 int state; 2180 int ret; 2181 2182 ret = kstrtoint(buf, 0, &state); 2183 if (ret) 2184 return ret; 2185 if (state != 0 && state != 1) 2186 return -EINVAL; 2187 2188 ret = toshiba_usb_sleep_music_set(toshiba, state); 2189 if (ret) 2190 return ret; 2191 2192 return count; 2193 } 2194 static DEVICE_ATTR_RW(usb_sleep_music); 2195 2196 static ssize_t kbd_function_keys_show(struct device *dev, 2197 struct device_attribute *attr, char *buf) 2198 { 2199 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2200 int mode; 2201 int ret; 2202 2203 ret = toshiba_function_keys_get(toshiba, &mode); 2204 if (ret < 0) 2205 return ret; 2206 2207 return sprintf(buf, "%d\n", mode); 2208 } 2209 2210 static ssize_t kbd_function_keys_store(struct device *dev, 2211 struct device_attribute *attr, 2212 const char *buf, size_t count) 2213 { 2214 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2215 int mode; 2216 int ret; 2217 2218 ret = kstrtoint(buf, 0, &mode); 2219 if (ret) 2220 return ret; 2221 /* 2222 * Check for the function keys mode where: 2223 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12}) 2224 * 1 - Special functions (Opposite of the above setting) 2225 */ 2226 if (mode != 0 && mode != 1) 2227 return -EINVAL; 2228 2229 ret = toshiba_function_keys_set(toshiba, mode); 2230 if (ret) 2231 return ret; 2232 2233 pr_info("Reboot for changes to KBD Function Keys to take effect"); 2234 2235 return count; 2236 } 2237 static DEVICE_ATTR_RW(kbd_function_keys); 2238 2239 static ssize_t panel_power_on_show(struct device *dev, 2240 struct device_attribute *attr, char *buf) 2241 { 2242 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2243 u32 state; 2244 int ret; 2245 2246 ret = toshiba_panel_power_on_get(toshiba, &state); 2247 if (ret < 0) 2248 return ret; 2249 2250 return sprintf(buf, "%d\n", state); 2251 } 2252 2253 static ssize_t panel_power_on_store(struct device *dev, 2254 struct device_attribute *attr, 2255 const char *buf, size_t count) 2256 { 2257 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2258 int state; 2259 int ret; 2260 2261 ret = kstrtoint(buf, 0, &state); 2262 if (ret) 2263 return ret; 2264 if (state != 0 && state != 1) 2265 return -EINVAL; 2266 2267 ret = toshiba_panel_power_on_set(toshiba, state); 2268 if (ret) 2269 return ret; 2270 2271 pr_info("Reboot for changes to Panel Power ON to take effect"); 2272 2273 return count; 2274 } 2275 static DEVICE_ATTR_RW(panel_power_on); 2276 2277 static ssize_t usb_three_show(struct device *dev, 2278 struct device_attribute *attr, char *buf) 2279 { 2280 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2281 u32 state; 2282 int ret; 2283 2284 ret = toshiba_usb_three_get(toshiba, &state); 2285 if (ret < 0) 2286 return ret; 2287 2288 return sprintf(buf, "%d\n", state); 2289 } 2290 2291 static ssize_t usb_three_store(struct device *dev, 2292 struct device_attribute *attr, 2293 const char *buf, size_t count) 2294 { 2295 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2296 int state; 2297 int ret; 2298 2299 ret = kstrtoint(buf, 0, &state); 2300 if (ret) 2301 return ret; 2302 /* 2303 * Check for USB 3 mode where: 2304 * 0 - Disabled (Acts like a USB 2 port, saving power) 2305 * 1 - Enabled 2306 */ 2307 if (state != 0 && state != 1) 2308 return -EINVAL; 2309 2310 ret = toshiba_usb_three_set(toshiba, state); 2311 if (ret) 2312 return ret; 2313 2314 pr_info("Reboot for changes to USB 3 to take effect"); 2315 2316 return count; 2317 } 2318 static DEVICE_ATTR_RW(usb_three); 2319 2320 static ssize_t cooling_method_show(struct device *dev, 2321 struct device_attribute *attr, char *buf) 2322 { 2323 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2324 int state; 2325 int ret; 2326 2327 ret = toshiba_cooling_method_get(toshiba, &state); 2328 if (ret < 0) 2329 return ret; 2330 2331 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method); 2332 } 2333 2334 static ssize_t cooling_method_store(struct device *dev, 2335 struct device_attribute *attr, 2336 const char *buf, size_t count) 2337 { 2338 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2339 int state; 2340 int ret; 2341 2342 ret = kstrtoint(buf, 0, &state); 2343 if (ret) 2344 return ret; 2345 2346 /* 2347 * Check for supported values 2348 * Depending on the laptop model, some only support these two: 2349 * 0 - Maximum Performance 2350 * 1 - Battery Optimized 2351 * 2352 * While some others support all three methods: 2353 * 0 - Maximum Performance 2354 * 1 - Performance 2355 * 2 - Battery Optimized 2356 */ 2357 if (state < 0 || state > toshiba->max_cooling_method) 2358 return -EINVAL; 2359 2360 ret = toshiba_cooling_method_set(toshiba, state); 2361 if (ret) 2362 return ret; 2363 2364 return count; 2365 } 2366 static DEVICE_ATTR_RW(cooling_method); 2367 2368 static struct attribute *toshiba_attributes[] = { 2369 &dev_attr_version.attr, 2370 &dev_attr_fan.attr, 2371 &dev_attr_kbd_backlight_mode.attr, 2372 &dev_attr_kbd_type.attr, 2373 &dev_attr_available_kbd_modes.attr, 2374 &dev_attr_kbd_backlight_timeout.attr, 2375 &dev_attr_touchpad.attr, 2376 &dev_attr_usb_sleep_charge.attr, 2377 &dev_attr_sleep_functions_on_battery.attr, 2378 &dev_attr_usb_rapid_charge.attr, 2379 &dev_attr_usb_sleep_music.attr, 2380 &dev_attr_kbd_function_keys.attr, 2381 &dev_attr_panel_power_on.attr, 2382 &dev_attr_usb_three.attr, 2383 &dev_attr_cooling_method.attr, 2384 NULL, 2385 }; 2386 2387 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj, 2388 struct attribute *attr, int idx) 2389 { 2390 struct device *dev = container_of(kobj, struct device, kobj); 2391 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev); 2392 bool exists = true; 2393 2394 if (attr == &dev_attr_fan.attr) 2395 exists = (drv->fan_supported) ? true : false; 2396 else if (attr == &dev_attr_kbd_backlight_mode.attr) 2397 exists = (drv->kbd_illum_supported) ? true : false; 2398 else if (attr == &dev_attr_kbd_backlight_timeout.attr) 2399 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false; 2400 else if (attr == &dev_attr_touchpad.attr) 2401 exists = (drv->touchpad_supported) ? true : false; 2402 else if (attr == &dev_attr_usb_sleep_charge.attr) 2403 exists = (drv->usb_sleep_charge_supported) ? true : false; 2404 else if (attr == &dev_attr_sleep_functions_on_battery.attr) 2405 exists = (drv->usb_sleep_charge_supported) ? true : false; 2406 else if (attr == &dev_attr_usb_rapid_charge.attr) 2407 exists = (drv->usb_rapid_charge_supported) ? true : false; 2408 else if (attr == &dev_attr_usb_sleep_music.attr) 2409 exists = (drv->usb_sleep_music_supported) ? true : false; 2410 else if (attr == &dev_attr_kbd_function_keys.attr) 2411 exists = (drv->kbd_function_keys_supported) ? true : false; 2412 else if (attr == &dev_attr_panel_power_on.attr) 2413 exists = (drv->panel_power_on_supported) ? true : false; 2414 else if (attr == &dev_attr_usb_three.attr) 2415 exists = (drv->usb_three_supported) ? true : false; 2416 else if (attr == &dev_attr_cooling_method.attr) 2417 exists = (drv->cooling_method_supported) ? true : false; 2418 2419 return exists ? attr->mode : 0; 2420 } 2421 2422 static const struct attribute_group toshiba_attr_group = { 2423 .is_visible = toshiba_sysfs_is_visible, 2424 .attrs = toshiba_attributes, 2425 }; 2426 2427 static void toshiba_acpi_kbd_bl_work(struct work_struct *work) 2428 { 2429 struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev; 2430 2431 /* Update the sysfs entries */ 2432 if (sysfs_update_group(&acpi_dev->dev.kobj, 2433 &toshiba_attr_group)) 2434 pr_err("Unable to update sysfs entries\n"); 2435 2436 /* Emulate the keyboard backlight event */ 2437 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class, 2438 dev_name(&acpi_dev->dev), 2439 0x92, 0); 2440 } 2441 2442 /* 2443 * IIO device 2444 */ 2445 2446 enum toshiba_iio_accel_chan { 2447 AXIS_X, 2448 AXIS_Y, 2449 AXIS_Z 2450 }; 2451 2452 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan) 2453 { 2454 u32 xyval, zval; 2455 int ret; 2456 2457 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval); 2458 if (ret < 0) 2459 return ret; 2460 2461 switch (chan) { 2462 case AXIS_X: 2463 return xyval & HCI_ACCEL_DIRECTION_MASK ? 2464 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK; 2465 case AXIS_Y: 2466 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ? 2467 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) : 2468 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK; 2469 case AXIS_Z: 2470 return zval & HCI_ACCEL_DIRECTION_MASK ? 2471 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK; 2472 } 2473 2474 return ret; 2475 } 2476 2477 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev, 2478 struct iio_chan_spec const *chan, 2479 int *val, int *val2, long mask) 2480 { 2481 int ret; 2482 2483 switch (mask) { 2484 case IIO_CHAN_INFO_RAW: 2485 ret = toshiba_iio_accel_get_axis(chan->channel); 2486 if (ret == -EIO || ret == -ENODEV) 2487 return ret; 2488 2489 *val = ret; 2490 2491 return IIO_VAL_INT; 2492 } 2493 2494 return -EINVAL; 2495 } 2496 2497 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \ 2498 .type = IIO_ACCEL, \ 2499 .modified = 1, \ 2500 .channel = chan, \ 2501 .channel2 = IIO_MOD_##axis, \ 2502 .output = 1, \ 2503 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ 2504 } 2505 2506 static const struct iio_chan_spec toshiba_iio_accel_channels[] = { 2507 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X), 2508 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y), 2509 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z), 2510 }; 2511 2512 static const struct iio_info toshiba_iio_accel_info = { 2513 .read_raw = &toshiba_iio_accel_read_raw, 2514 }; 2515 2516 /* 2517 * Misc device 2518 */ 2519 static int toshiba_acpi_smm_bridge(SMMRegisters *regs) 2520 { 2521 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx, 2522 regs->edx, regs->esi, regs->edi }; 2523 u32 out[TCI_WORDS]; 2524 acpi_status status; 2525 2526 status = tci_raw(toshiba_acpi, in, out); 2527 if (ACPI_FAILURE(status)) { 2528 pr_err("ACPI call to query SMM registers failed\n"); 2529 return -EIO; 2530 } 2531 2532 /* Fillout the SMM struct with the TCI call results */ 2533 regs->eax = out[0]; 2534 regs->ebx = out[1]; 2535 regs->ecx = out[2]; 2536 regs->edx = out[3]; 2537 regs->esi = out[4]; 2538 regs->edi = out[5]; 2539 2540 return 0; 2541 } 2542 2543 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd, 2544 unsigned long arg) 2545 { 2546 SMMRegisters __user *argp = (SMMRegisters __user *)arg; 2547 SMMRegisters regs; 2548 int ret; 2549 2550 if (!argp) 2551 return -EINVAL; 2552 2553 switch (cmd) { 2554 case TOSH_SMM: 2555 if (copy_from_user(®s, argp, sizeof(SMMRegisters))) 2556 return -EFAULT; 2557 ret = toshiba_acpi_smm_bridge(®s); 2558 if (ret) 2559 return ret; 2560 if (copy_to_user(argp, ®s, sizeof(SMMRegisters))) 2561 return -EFAULT; 2562 break; 2563 case TOSHIBA_ACPI_SCI: 2564 if (copy_from_user(®s, argp, sizeof(SMMRegisters))) 2565 return -EFAULT; 2566 /* Ensure we are being called with a SCI_{GET, SET} register */ 2567 if (regs.eax != SCI_GET && regs.eax != SCI_SET) 2568 return -EINVAL; 2569 if (!sci_open(toshiba_acpi)) 2570 return -EIO; 2571 ret = toshiba_acpi_smm_bridge(®s); 2572 sci_close(toshiba_acpi); 2573 if (ret) 2574 return ret; 2575 if (copy_to_user(argp, ®s, sizeof(SMMRegisters))) 2576 return -EFAULT; 2577 break; 2578 default: 2579 return -EINVAL; 2580 } 2581 2582 return 0; 2583 } 2584 2585 static const struct file_operations toshiba_acpi_fops = { 2586 .owner = THIS_MODULE, 2587 .unlocked_ioctl = toshiba_acpi_ioctl, 2588 .llseek = noop_llseek, 2589 }; 2590 2591 /* 2592 * WWAN RFKill handlers 2593 */ 2594 static int toshiba_acpi_wwan_set_block(void *data, bool blocked) 2595 { 2596 struct toshiba_acpi_dev *dev = data; 2597 int ret; 2598 2599 ret = toshiba_wireless_status(dev); 2600 if (ret) 2601 return ret; 2602 2603 if (!dev->killswitch) 2604 return 0; 2605 2606 return toshiba_wwan_set(dev, !blocked); 2607 } 2608 2609 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data) 2610 { 2611 struct toshiba_acpi_dev *dev = data; 2612 2613 if (toshiba_wireless_status(dev)) 2614 return; 2615 2616 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); 2617 } 2618 2619 static const struct rfkill_ops wwan_rfk_ops = { 2620 .set_block = toshiba_acpi_wwan_set_block, 2621 .poll = toshiba_acpi_wwan_poll, 2622 }; 2623 2624 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev) 2625 { 2626 int ret = toshiba_wireless_status(dev); 2627 2628 if (ret) 2629 return ret; 2630 2631 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN", 2632 &dev->acpi_dev->dev, 2633 RFKILL_TYPE_WWAN, 2634 &wwan_rfk_ops, 2635 dev); 2636 if (!dev->wwan_rfk) { 2637 pr_err("Unable to allocate WWAN rfkill device\n"); 2638 return -ENOMEM; 2639 } 2640 2641 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); 2642 2643 ret = rfkill_register(dev->wwan_rfk); 2644 if (ret) { 2645 pr_err("Unable to register WWAN rfkill device\n"); 2646 rfkill_destroy(dev->wwan_rfk); 2647 } 2648 2649 return ret; 2650 } 2651 2652 /* 2653 * Hotkeys 2654 */ 2655 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev) 2656 { 2657 acpi_status status; 2658 u32 result; 2659 2660 status = acpi_evaluate_object(dev->acpi_dev->handle, 2661 "ENAB", NULL, NULL); 2662 if (ACPI_FAILURE(status)) 2663 return -ENODEV; 2664 2665 /* 2666 * Enable the "Special Functions" mode only if they are 2667 * supported and if they are activated. 2668 */ 2669 if (dev->kbd_function_keys_supported && dev->special_functions) 2670 result = hci_write(dev, HCI_HOTKEY_EVENT, 2671 HCI_HOTKEY_SPECIAL_FUNCTIONS); 2672 else 2673 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE); 2674 2675 if (result == TOS_FAILURE) 2676 return -EIO; 2677 else if (result == TOS_NOT_SUPPORTED) 2678 return -ENODEV; 2679 2680 return 0; 2681 } 2682 2683 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str, 2684 struct serio *port) 2685 { 2686 if (str & I8042_STR_AUXDATA) 2687 return false; 2688 2689 if (unlikely(data == 0xe0)) 2690 return false; 2691 2692 if ((data & 0x7f) == TOS1900_FN_SCAN) { 2693 schedule_work(&toshiba_acpi->hotkey_work); 2694 return true; 2695 } 2696 2697 return false; 2698 } 2699 2700 static void toshiba_acpi_hotkey_work(struct work_struct *work) 2701 { 2702 acpi_handle ec_handle = ec_get_handle(); 2703 acpi_status status; 2704 2705 if (!ec_handle) 2706 return; 2707 2708 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL); 2709 if (ACPI_FAILURE(status)) 2710 pr_err("ACPI NTFY method execution failed\n"); 2711 } 2712 2713 /* 2714 * Returns hotkey scancode, or < 0 on failure. 2715 */ 2716 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev) 2717 { 2718 unsigned long long value; 2719 acpi_status status; 2720 2721 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO", 2722 NULL, &value); 2723 if (ACPI_FAILURE(status)) { 2724 pr_err("ACPI INFO method execution failed\n"); 2725 return -EIO; 2726 } 2727 2728 return value; 2729 } 2730 2731 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev, 2732 int scancode) 2733 { 2734 if (scancode == 0x100) 2735 return; 2736 2737 /* Act on key press; ignore key release */ 2738 if (scancode & 0x80) 2739 return; 2740 2741 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true)) 2742 pr_info("Unknown key %x\n", scancode); 2743 } 2744 2745 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev) 2746 { 2747 if (dev->info_supported) { 2748 int scancode = toshiba_acpi_query_hotkey(dev); 2749 2750 if (scancode < 0) { 2751 pr_err("Failed to query hotkey event\n"); 2752 } else if (scancode != 0) { 2753 toshiba_acpi_report_hotkey(dev, scancode); 2754 dev->key_event_valid = 1; 2755 dev->last_key_event = scancode; 2756 } 2757 } else if (dev->system_event_supported) { 2758 u32 result; 2759 u32 value; 2760 int retries = 3; 2761 2762 do { 2763 result = hci_read(dev, HCI_SYSTEM_EVENT, &value); 2764 switch (result) { 2765 case TOS_SUCCESS: 2766 toshiba_acpi_report_hotkey(dev, (int)value); 2767 dev->key_event_valid = 1; 2768 dev->last_key_event = value; 2769 break; 2770 case TOS_NOT_SUPPORTED: 2771 /* 2772 * This is a workaround for an unresolved 2773 * issue on some machines where system events 2774 * sporadically become disabled. 2775 */ 2776 result = hci_write(dev, HCI_SYSTEM_EVENT, 1); 2777 if (result == TOS_SUCCESS) 2778 pr_notice("Re-enabled hotkeys\n"); 2779 /* Fall through */ 2780 default: 2781 retries--; 2782 break; 2783 } 2784 } while (retries && result != TOS_FIFO_EMPTY); 2785 } 2786 } 2787 2788 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev) 2789 { 2790 const struct key_entry *keymap = toshiba_acpi_keymap; 2791 acpi_handle ec_handle; 2792 int error; 2793 2794 if (disable_hotkeys) { 2795 pr_info("Hotkeys disabled by module parameter\n"); 2796 return 0; 2797 } 2798 2799 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) { 2800 pr_info("WMI event detected, hotkeys will not be monitored\n"); 2801 return 0; 2802 } 2803 2804 error = toshiba_acpi_enable_hotkeys(dev); 2805 if (error) 2806 return error; 2807 2808 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type)) 2809 pr_notice("Unable to query Hotkey Event Type\n"); 2810 2811 dev->hotkey_dev = input_allocate_device(); 2812 if (!dev->hotkey_dev) 2813 return -ENOMEM; 2814 2815 dev->hotkey_dev->name = "Toshiba input device"; 2816 dev->hotkey_dev->phys = "toshiba_acpi/input0"; 2817 dev->hotkey_dev->id.bustype = BUS_HOST; 2818 2819 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 || 2820 !dev->kbd_function_keys_supported) 2821 keymap = toshiba_acpi_keymap; 2822 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 || 2823 dev->kbd_function_keys_supported) 2824 keymap = toshiba_acpi_alt_keymap; 2825 else 2826 pr_info("Unknown event type received %x\n", 2827 dev->hotkey_event_type); 2828 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL); 2829 if (error) 2830 goto err_free_dev; 2831 2832 /* 2833 * For some machines the SCI responsible for providing hotkey 2834 * notification doesn't fire. We can trigger the notification 2835 * whenever the Fn key is pressed using the NTFY method, if 2836 * supported, so if it's present set up an i8042 key filter 2837 * for this purpose. 2838 */ 2839 ec_handle = ec_get_handle(); 2840 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) { 2841 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work); 2842 2843 error = i8042_install_filter(toshiba_acpi_i8042_filter); 2844 if (error) { 2845 pr_err("Error installing key filter\n"); 2846 goto err_free_dev; 2847 } 2848 2849 dev->ntfy_supported = 1; 2850 } 2851 2852 /* 2853 * Determine hotkey query interface. Prefer using the INFO 2854 * method when it is available. 2855 */ 2856 if (acpi_has_method(dev->acpi_dev->handle, "INFO")) 2857 dev->info_supported = 1; 2858 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS) 2859 dev->system_event_supported = 1; 2860 2861 if (!dev->info_supported && !dev->system_event_supported) { 2862 pr_warn("No hotkey query interface found\n"); 2863 goto err_remove_filter; 2864 } 2865 2866 error = input_register_device(dev->hotkey_dev); 2867 if (error) { 2868 pr_info("Unable to register input device\n"); 2869 goto err_remove_filter; 2870 } 2871 2872 return 0; 2873 2874 err_remove_filter: 2875 if (dev->ntfy_supported) 2876 i8042_remove_filter(toshiba_acpi_i8042_filter); 2877 err_free_dev: 2878 input_free_device(dev->hotkey_dev); 2879 dev->hotkey_dev = NULL; 2880 return error; 2881 } 2882 2883 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev) 2884 { 2885 struct backlight_properties props; 2886 int brightness; 2887 int ret; 2888 2889 /* 2890 * Some machines don't support the backlight methods at all, and 2891 * others support it read-only. Either of these is pretty useless, 2892 * so only register the backlight device if the backlight method 2893 * supports both reads and writes. 2894 */ 2895 brightness = __get_lcd_brightness(dev); 2896 if (brightness < 0) 2897 return 0; 2898 /* 2899 * If transflective backlight is supported and the brightness is zero 2900 * (lowest brightness level), the set_lcd_brightness function will 2901 * activate the transflective backlight, making the LCD appear to be 2902 * turned off, simply increment the brightness level to avoid that. 2903 */ 2904 if (dev->tr_backlight_supported && brightness == 0) 2905 brightness++; 2906 ret = set_lcd_brightness(dev, brightness); 2907 if (ret) { 2908 pr_debug("Backlight method is read-only, disabling backlight support\n"); 2909 return 0; 2910 } 2911 2912 /* 2913 * Tell acpi-video-detect code to prefer vendor backlight on all 2914 * systems with transflective backlight and on dmi matched systems. 2915 */ 2916 if (dev->tr_backlight_supported || 2917 dmi_check_system(toshiba_vendor_backlight_dmi)) 2918 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor); 2919 2920 if (acpi_video_get_backlight_type() != acpi_backlight_vendor) 2921 return 0; 2922 2923 memset(&props, 0, sizeof(props)); 2924 props.type = BACKLIGHT_PLATFORM; 2925 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1; 2926 2927 /* Adding an extra level and having 0 change to transflective mode */ 2928 if (dev->tr_backlight_supported) 2929 props.max_brightness++; 2930 2931 dev->backlight_dev = backlight_device_register("toshiba", 2932 &dev->acpi_dev->dev, 2933 dev, 2934 &toshiba_backlight_data, 2935 &props); 2936 if (IS_ERR(dev->backlight_dev)) { 2937 ret = PTR_ERR(dev->backlight_dev); 2938 pr_err("Could not register toshiba backlight device\n"); 2939 dev->backlight_dev = NULL; 2940 return ret; 2941 } 2942 2943 dev->backlight_dev->props.brightness = brightness; 2944 return 0; 2945 } 2946 2947 static void print_supported_features(struct toshiba_acpi_dev *dev) 2948 { 2949 pr_info("Supported laptop features:"); 2950 2951 if (dev->hotkey_dev) 2952 pr_cont(" hotkeys"); 2953 if (dev->backlight_dev) 2954 pr_cont(" backlight"); 2955 if (dev->video_supported) 2956 pr_cont(" video-out"); 2957 if (dev->fan_supported) 2958 pr_cont(" fan"); 2959 if (dev->tr_backlight_supported) 2960 pr_cont(" transflective-backlight"); 2961 if (dev->illumination_supported) 2962 pr_cont(" illumination"); 2963 if (dev->kbd_illum_supported) 2964 pr_cont(" keyboard-backlight"); 2965 if (dev->touchpad_supported) 2966 pr_cont(" touchpad"); 2967 if (dev->eco_supported) 2968 pr_cont(" eco-led"); 2969 if (dev->accelerometer_supported) 2970 pr_cont(" accelerometer-axes"); 2971 if (dev->usb_sleep_charge_supported) 2972 pr_cont(" usb-sleep-charge"); 2973 if (dev->usb_rapid_charge_supported) 2974 pr_cont(" usb-rapid-charge"); 2975 if (dev->usb_sleep_music_supported) 2976 pr_cont(" usb-sleep-music"); 2977 if (dev->kbd_function_keys_supported) 2978 pr_cont(" special-function-keys"); 2979 if (dev->panel_power_on_supported) 2980 pr_cont(" panel-power-on"); 2981 if (dev->usb_three_supported) 2982 pr_cont(" usb3"); 2983 if (dev->wwan_supported) 2984 pr_cont(" wwan"); 2985 if (dev->cooling_method_supported) 2986 pr_cont(" cooling-method"); 2987 2988 pr_cont("\n"); 2989 } 2990 2991 static int toshiba_acpi_remove(struct acpi_device *acpi_dev) 2992 { 2993 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev); 2994 2995 misc_deregister(&dev->miscdev); 2996 2997 remove_toshiba_proc_entries(dev); 2998 2999 if (dev->accelerometer_supported && dev->indio_dev) { 3000 iio_device_unregister(dev->indio_dev); 3001 iio_device_free(dev->indio_dev); 3002 } 3003 3004 if (dev->sysfs_created) 3005 sysfs_remove_group(&dev->acpi_dev->dev.kobj, 3006 &toshiba_attr_group); 3007 3008 if (dev->ntfy_supported) { 3009 i8042_remove_filter(toshiba_acpi_i8042_filter); 3010 cancel_work_sync(&dev->hotkey_work); 3011 } 3012 3013 if (dev->hotkey_dev) 3014 input_unregister_device(dev->hotkey_dev); 3015 3016 backlight_device_unregister(dev->backlight_dev); 3017 3018 if (dev->illumination_led_registered) 3019 led_classdev_unregister(&dev->led_dev); 3020 3021 if (dev->kbd_led_registered) 3022 led_classdev_unregister(&dev->kbd_led); 3023 3024 if (dev->eco_led_registered) 3025 led_classdev_unregister(&dev->eco_led); 3026 3027 if (dev->wwan_rfk) { 3028 rfkill_unregister(dev->wwan_rfk); 3029 rfkill_destroy(dev->wwan_rfk); 3030 } 3031 3032 if (toshiba_acpi) 3033 toshiba_acpi = NULL; 3034 3035 kfree(dev); 3036 3037 return 0; 3038 } 3039 3040 static const char *find_hci_method(acpi_handle handle) 3041 { 3042 if (acpi_has_method(handle, "GHCI")) 3043 return "GHCI"; 3044 3045 if (acpi_has_method(handle, "SPFC")) 3046 return "SPFC"; 3047 3048 return NULL; 3049 } 3050 3051 static int toshiba_acpi_add(struct acpi_device *acpi_dev) 3052 { 3053 struct toshiba_acpi_dev *dev; 3054 const char *hci_method; 3055 u32 dummy; 3056 int ret = 0; 3057 3058 if (toshiba_acpi) 3059 return -EBUSY; 3060 3061 pr_info("Toshiba Laptop ACPI Extras version %s\n", 3062 TOSHIBA_ACPI_VERSION); 3063 3064 hci_method = find_hci_method(acpi_dev->handle); 3065 if (!hci_method) { 3066 pr_err("HCI interface not found\n"); 3067 return -ENODEV; 3068 } 3069 3070 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 3071 if (!dev) 3072 return -ENOMEM; 3073 dev->acpi_dev = acpi_dev; 3074 dev->method_hci = hci_method; 3075 dev->miscdev.minor = MISC_DYNAMIC_MINOR; 3076 dev->miscdev.name = "toshiba_acpi"; 3077 dev->miscdev.fops = &toshiba_acpi_fops; 3078 3079 ret = misc_register(&dev->miscdev); 3080 if (ret) { 3081 pr_err("Failed to register miscdevice\n"); 3082 kfree(dev); 3083 return ret; 3084 } 3085 3086 acpi_dev->driver_data = dev; 3087 dev_set_drvdata(&acpi_dev->dev, dev); 3088 3089 /* Query the BIOS for supported features */ 3090 3091 /* 3092 * The "Special Functions" are always supported by the laptops 3093 * with the new keyboard layout, query for its presence to help 3094 * determine the keymap layout to use. 3095 */ 3096 ret = toshiba_function_keys_get(dev, &dev->special_functions); 3097 dev->kbd_function_keys_supported = !ret; 3098 3099 dev->hotkey_event_type = 0; 3100 if (toshiba_acpi_setup_keyboard(dev)) 3101 pr_info("Unable to activate hotkeys\n"); 3102 3103 /* Determine whether or not BIOS supports transflective backlight */ 3104 ret = get_tr_backlight_status(dev, &dummy); 3105 dev->tr_backlight_supported = !ret; 3106 3107 ret = toshiba_acpi_setup_backlight(dev); 3108 if (ret) 3109 goto error; 3110 3111 toshiba_illumination_available(dev); 3112 if (dev->illumination_supported) { 3113 dev->led_dev.name = "toshiba::illumination"; 3114 dev->led_dev.max_brightness = 1; 3115 dev->led_dev.brightness_set = toshiba_illumination_set; 3116 dev->led_dev.brightness_get = toshiba_illumination_get; 3117 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev)) 3118 dev->illumination_led_registered = true; 3119 } 3120 3121 toshiba_eco_mode_available(dev); 3122 if (dev->eco_supported) { 3123 dev->eco_led.name = "toshiba::eco_mode"; 3124 dev->eco_led.max_brightness = 1; 3125 dev->eco_led.brightness_set = toshiba_eco_mode_set_status; 3126 dev->eco_led.brightness_get = toshiba_eco_mode_get_status; 3127 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led)) 3128 dev->eco_led_registered = true; 3129 } 3130 3131 toshiba_kbd_illum_available(dev); 3132 /* 3133 * Only register the LED if KBD illumination is supported 3134 * and the keyboard backlight operation mode is set to FN-Z 3135 */ 3136 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) { 3137 dev->kbd_led.name = "toshiba::kbd_backlight"; 3138 dev->kbd_led.max_brightness = 1; 3139 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set; 3140 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get; 3141 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led)) 3142 dev->kbd_led_registered = true; 3143 } 3144 3145 ret = toshiba_touchpad_get(dev, &dummy); 3146 dev->touchpad_supported = !ret; 3147 3148 toshiba_accelerometer_available(dev); 3149 if (dev->accelerometer_supported) { 3150 dev->indio_dev = iio_device_alloc(sizeof(*dev)); 3151 if (!dev->indio_dev) { 3152 pr_err("Unable to allocate iio device\n"); 3153 goto iio_error; 3154 } 3155 3156 pr_info("Registering Toshiba accelerometer iio device\n"); 3157 3158 dev->indio_dev->info = &toshiba_iio_accel_info; 3159 dev->indio_dev->name = "Toshiba accelerometer"; 3160 dev->indio_dev->dev.parent = &acpi_dev->dev; 3161 dev->indio_dev->modes = INDIO_DIRECT_MODE; 3162 dev->indio_dev->channels = toshiba_iio_accel_channels; 3163 dev->indio_dev->num_channels = 3164 ARRAY_SIZE(toshiba_iio_accel_channels); 3165 3166 ret = iio_device_register(dev->indio_dev); 3167 if (ret < 0) { 3168 pr_err("Unable to register iio device\n"); 3169 iio_device_free(dev->indio_dev); 3170 } 3171 } 3172 iio_error: 3173 3174 toshiba_usb_sleep_charge_available(dev); 3175 3176 ret = toshiba_usb_rapid_charge_get(dev, &dummy); 3177 dev->usb_rapid_charge_supported = !ret; 3178 3179 ret = toshiba_usb_sleep_music_get(dev, &dummy); 3180 dev->usb_sleep_music_supported = !ret; 3181 3182 ret = toshiba_panel_power_on_get(dev, &dummy); 3183 dev->panel_power_on_supported = !ret; 3184 3185 ret = toshiba_usb_three_get(dev, &dummy); 3186 dev->usb_three_supported = !ret; 3187 3188 ret = get_video_status(dev, &dummy); 3189 dev->video_supported = !ret; 3190 3191 ret = get_fan_status(dev, &dummy); 3192 dev->fan_supported = !ret; 3193 3194 toshiba_wwan_available(dev); 3195 if (dev->wwan_supported) 3196 toshiba_acpi_setup_wwan_rfkill(dev); 3197 3198 toshiba_cooling_method_available(dev); 3199 3200 print_supported_features(dev); 3201 3202 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj, 3203 &toshiba_attr_group); 3204 if (ret) { 3205 dev->sysfs_created = 0; 3206 goto error; 3207 } 3208 dev->sysfs_created = !ret; 3209 3210 create_toshiba_proc_entries(dev); 3211 3212 toshiba_acpi = dev; 3213 3214 return 0; 3215 3216 error: 3217 toshiba_acpi_remove(acpi_dev); 3218 return ret; 3219 } 3220 3221 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event) 3222 { 3223 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev); 3224 3225 switch (event) { 3226 case 0x80: /* Hotkeys and some system events */ 3227 /* 3228 * Machines with this WMI GUID aren't supported due to bugs in 3229 * their AML. 3230 * 3231 * Return silently to avoid triggering a netlink event. 3232 */ 3233 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) 3234 return; 3235 toshiba_acpi_process_hotkeys(dev); 3236 break; 3237 case 0x81: /* Dock events */ 3238 case 0x82: 3239 case 0x83: 3240 pr_info("Dock event received %x\n", event); 3241 break; 3242 case 0x88: /* Thermal events */ 3243 pr_info("Thermal event received\n"); 3244 break; 3245 case 0x8f: /* LID closed */ 3246 case 0x90: /* LID is closed and Dock has been ejected */ 3247 break; 3248 case 0x8c: /* SATA power events */ 3249 case 0x8b: 3250 pr_info("SATA power event received %x\n", event); 3251 break; 3252 case 0x92: /* Keyboard backlight mode changed */ 3253 toshiba_acpi->kbd_event_generated = true; 3254 /* Update sysfs entries */ 3255 if (sysfs_update_group(&acpi_dev->dev.kobj, 3256 &toshiba_attr_group)) 3257 pr_err("Unable to update sysfs entries\n"); 3258 break; 3259 case 0x85: /* Unknown */ 3260 case 0x8d: /* Unknown */ 3261 case 0x8e: /* Unknown */ 3262 case 0x94: /* Unknown */ 3263 case 0x95: /* Unknown */ 3264 default: 3265 pr_info("Unknown event received %x\n", event); 3266 break; 3267 } 3268 3269 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class, 3270 dev_name(&acpi_dev->dev), 3271 event, (event == 0x80) ? 3272 dev->last_key_event : 0); 3273 } 3274 3275 #ifdef CONFIG_PM_SLEEP 3276 static int toshiba_acpi_suspend(struct device *device) 3277 { 3278 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device)); 3279 3280 if (dev->hotkey_dev) { 3281 u32 result; 3282 3283 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE); 3284 if (result != TOS_SUCCESS) 3285 pr_info("Unable to disable hotkeys\n"); 3286 } 3287 3288 return 0; 3289 } 3290 3291 static int toshiba_acpi_resume(struct device *device) 3292 { 3293 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device)); 3294 3295 if (dev->hotkey_dev) { 3296 if (toshiba_acpi_enable_hotkeys(dev)) 3297 pr_info("Unable to re-enable hotkeys\n"); 3298 } 3299 3300 if (dev->wwan_rfk) { 3301 if (!toshiba_wireless_status(dev)) 3302 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); 3303 } 3304 3305 return 0; 3306 } 3307 #endif 3308 3309 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm, 3310 toshiba_acpi_suspend, toshiba_acpi_resume); 3311 3312 static struct acpi_driver toshiba_acpi_driver = { 3313 .name = "Toshiba ACPI driver", 3314 .owner = THIS_MODULE, 3315 .ids = toshiba_device_ids, 3316 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, 3317 .ops = { 3318 .add = toshiba_acpi_add, 3319 .remove = toshiba_acpi_remove, 3320 .notify = toshiba_acpi_notify, 3321 }, 3322 .drv.pm = &toshiba_acpi_pm, 3323 }; 3324 3325 static int __init toshiba_acpi_init(void) 3326 { 3327 int ret; 3328 3329 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir); 3330 if (!toshiba_proc_dir) { 3331 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n"); 3332 return -ENODEV; 3333 } 3334 3335 ret = acpi_bus_register_driver(&toshiba_acpi_driver); 3336 if (ret) { 3337 pr_err("Failed to register ACPI driver: %d\n", ret); 3338 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); 3339 } 3340 3341 return ret; 3342 } 3343 3344 static void __exit toshiba_acpi_exit(void) 3345 { 3346 acpi_bus_unregister_driver(&toshiba_acpi_driver); 3347 if (toshiba_proc_dir) 3348 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); 3349 } 3350 3351 module_init(toshiba_acpi_init); 3352 module_exit(toshiba_acpi_exit); 3353