1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * toshiba_acpi.c - Toshiba Laptop ACPI Extras 4 * 5 * Copyright (C) 2002-2004 John Belmonte 6 * Copyright (C) 2008 Philip Langdale 7 * Copyright (C) 2010 Pierre Ducroquet 8 * Copyright (C) 2014-2016 Azael Avalos 9 * 10 * The devolpment page for this driver is located at 11 * http://memebeam.org/toys/ToshibaAcpiDriver. 12 * 13 * Credits: 14 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse 15 * engineering the Windows drivers 16 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5 17 * Rob Miller - TV out and hotkeys help 18 */ 19 20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 21 22 #define TOSHIBA_ACPI_VERSION "0.24" 23 #define PROC_INTERFACE_VERSION 1 24 25 #include <linux/compiler.h> 26 #include <linux/kernel.h> 27 #include <linux/module.h> 28 #include <linux/moduleparam.h> 29 #include <linux/init.h> 30 #include <linux/types.h> 31 #include <linux/proc_fs.h> 32 #include <linux/seq_file.h> 33 #include <linux/backlight.h> 34 #include <linux/input.h> 35 #include <linux/input/sparse-keymap.h> 36 #include <linux/leds.h> 37 #include <linux/slab.h> 38 #include <linux/workqueue.h> 39 #include <linux/i8042.h> 40 #include <linux/acpi.h> 41 #include <linux/dmi.h> 42 #include <linux/uaccess.h> 43 #include <linux/miscdevice.h> 44 #include <linux/rfkill.h> 45 #include <linux/iio/iio.h> 46 #include <linux/toshiba.h> 47 #include <acpi/video.h> 48 49 MODULE_AUTHOR("John Belmonte"); 50 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver"); 51 MODULE_LICENSE("GPL"); 52 53 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100" 54 55 /* Scan code for Fn key on TOS1900 models */ 56 #define TOS1900_FN_SCAN 0x6e 57 58 /* Toshiba ACPI method paths */ 59 #define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX" 60 61 /* 62 * The Toshiba configuration interface is composed of the HCI and the SCI, 63 * which are defined as follows: 64 * 65 * HCI is Toshiba's "Hardware Control Interface" which is supposed to 66 * be uniform across all their models. Ideally we would just call 67 * dedicated ACPI methods instead of using this primitive interface. 68 * However the ACPI methods seem to be incomplete in some areas (for 69 * example they allow setting, but not reading, the LCD brightness value), 70 * so this is still useful. 71 * 72 * SCI stands for "System Configuration Interface" which aim is to 73 * conceal differences in hardware between different models. 74 */ 75 76 #define TCI_WORDS 6 77 78 /* Operations */ 79 #define HCI_SET 0xff00 80 #define HCI_GET 0xfe00 81 #define SCI_OPEN 0xf100 82 #define SCI_CLOSE 0xf200 83 #define SCI_GET 0xf300 84 #define SCI_SET 0xf400 85 86 /* Return codes */ 87 #define TOS_SUCCESS 0x0000 88 #define TOS_SUCCESS2 0x0001 89 #define TOS_OPEN_CLOSE_OK 0x0044 90 #define TOS_FAILURE 0x1000 91 #define TOS_NOT_SUPPORTED 0x8000 92 #define TOS_ALREADY_OPEN 0x8100 93 #define TOS_NOT_OPENED 0x8200 94 #define TOS_INPUT_DATA_ERROR 0x8300 95 #define TOS_WRITE_PROTECTED 0x8400 96 #define TOS_NOT_PRESENT 0x8600 97 #define TOS_FIFO_EMPTY 0x8c00 98 #define TOS_DATA_NOT_AVAILABLE 0x8d20 99 #define TOS_NOT_INITIALIZED 0x8d50 100 #define TOS_NOT_INSTALLED 0x8e00 101 102 /* Registers */ 103 #define HCI_FAN 0x0004 104 #define HCI_TR_BACKLIGHT 0x0005 105 #define HCI_SYSTEM_EVENT 0x0016 106 #define HCI_VIDEO_OUT 0x001c 107 #define HCI_HOTKEY_EVENT 0x001e 108 #define HCI_LCD_BRIGHTNESS 0x002a 109 #define HCI_WIRELESS 0x0056 110 #define HCI_ACCELEROMETER 0x006d 111 #define HCI_COOLING_METHOD 0x007f 112 #define HCI_KBD_ILLUMINATION 0x0095 113 #define HCI_ECO_MODE 0x0097 114 #define HCI_ACCELEROMETER2 0x00a6 115 #define HCI_SYSTEM_INFO 0xc000 116 #define SCI_PANEL_POWER_ON 0x010d 117 #define SCI_ILLUMINATION 0x014e 118 #define SCI_USB_SLEEP_CHARGE 0x0150 119 #define SCI_KBD_ILLUM_STATUS 0x015c 120 #define SCI_USB_SLEEP_MUSIC 0x015e 121 #define SCI_USB_THREE 0x0169 122 #define SCI_TOUCHPAD 0x050e 123 #define SCI_KBD_FUNCTION_KEYS 0x0522 124 125 /* Field definitions */ 126 #define HCI_ACCEL_MASK 0x7fff 127 #define HCI_ACCEL_DIRECTION_MASK 0x8000 128 #define HCI_HOTKEY_DISABLE 0x0b 129 #define HCI_HOTKEY_ENABLE 0x09 130 #define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10 131 #define HCI_LCD_BRIGHTNESS_BITS 3 132 #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS) 133 #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS) 134 #define HCI_MISC_SHIFT 0x10 135 #define HCI_SYSTEM_TYPE1 0x10 136 #define HCI_SYSTEM_TYPE2 0x11 137 #define HCI_VIDEO_OUT_LCD 0x1 138 #define HCI_VIDEO_OUT_CRT 0x2 139 #define HCI_VIDEO_OUT_TV 0x4 140 #define SCI_KBD_MODE_MASK 0x1f 141 #define SCI_KBD_MODE_FNZ 0x1 142 #define SCI_KBD_MODE_AUTO 0x2 143 #define SCI_KBD_MODE_ON 0x8 144 #define SCI_KBD_MODE_OFF 0x10 145 #define SCI_KBD_TIME_MAX 0x3c001a 146 #define HCI_WIRELESS_STATUS 0x1 147 #define HCI_WIRELESS_WWAN 0x3 148 #define HCI_WIRELESS_WWAN_STATUS 0x2000 149 #define HCI_WIRELESS_WWAN_POWER 0x4000 150 #define SCI_USB_CHARGE_MODE_MASK 0xff 151 #define SCI_USB_CHARGE_DISABLED 0x00 152 #define SCI_USB_CHARGE_ALTERNATE 0x09 153 #define SCI_USB_CHARGE_TYPICAL 0x11 154 #define SCI_USB_CHARGE_AUTO 0x21 155 #define SCI_USB_CHARGE_BAT_MASK 0x7 156 #define SCI_USB_CHARGE_BAT_LVL_OFF 0x1 157 #define SCI_USB_CHARGE_BAT_LVL_ON 0x4 158 #define SCI_USB_CHARGE_BAT_LVL 0x0200 159 #define SCI_USB_CHARGE_RAPID_DSP 0x0300 160 161 struct toshiba_acpi_dev { 162 struct acpi_device *acpi_dev; 163 const char *method_hci; 164 struct input_dev *hotkey_dev; 165 struct work_struct hotkey_work; 166 struct backlight_device *backlight_dev; 167 struct led_classdev led_dev; 168 struct led_classdev kbd_led; 169 struct led_classdev eco_led; 170 struct miscdevice miscdev; 171 struct rfkill *wwan_rfk; 172 struct iio_dev *indio_dev; 173 174 int force_fan; 175 int last_key_event; 176 int key_event_valid; 177 int kbd_type; 178 int kbd_mode; 179 int kbd_time; 180 int usbsc_bat_level; 181 int usbsc_mode_base; 182 int hotkey_event_type; 183 int max_cooling_method; 184 185 unsigned int illumination_supported:1; 186 unsigned int video_supported:1; 187 unsigned int fan_supported:1; 188 unsigned int system_event_supported:1; 189 unsigned int ntfy_supported:1; 190 unsigned int info_supported:1; 191 unsigned int tr_backlight_supported:1; 192 unsigned int kbd_illum_supported:1; 193 unsigned int touchpad_supported:1; 194 unsigned int eco_supported:1; 195 unsigned int accelerometer_supported:1; 196 unsigned int usb_sleep_charge_supported:1; 197 unsigned int usb_rapid_charge_supported:1; 198 unsigned int usb_sleep_music_supported:1; 199 unsigned int kbd_function_keys_supported:1; 200 unsigned int panel_power_on_supported:1; 201 unsigned int usb_three_supported:1; 202 unsigned int wwan_supported:1; 203 unsigned int cooling_method_supported:1; 204 unsigned int sysfs_created:1; 205 unsigned int special_functions; 206 207 bool kbd_event_generated; 208 bool killswitch; 209 }; 210 211 static struct toshiba_acpi_dev *toshiba_acpi; 212 213 static bool disable_hotkeys; 214 module_param(disable_hotkeys, bool, 0444); 215 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation"); 216 217 static const struct acpi_device_id toshiba_device_ids[] = { 218 {"TOS6200", 0}, 219 {"TOS6207", 0}, 220 {"TOS6208", 0}, 221 {"TOS1900", 0}, 222 {"", 0}, 223 }; 224 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids); 225 226 static const struct key_entry toshiba_acpi_keymap[] = { 227 { KE_KEY, 0x9e, { KEY_RFKILL } }, 228 { KE_KEY, 0x101, { KEY_MUTE } }, 229 { KE_KEY, 0x102, { KEY_ZOOMOUT } }, 230 { KE_KEY, 0x103, { KEY_ZOOMIN } }, 231 { KE_KEY, 0x10f, { KEY_TAB } }, 232 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } }, 233 { KE_KEY, 0x139, { KEY_ZOOMRESET } }, 234 { KE_KEY, 0x13b, { KEY_COFFEE } }, 235 { KE_KEY, 0x13c, { KEY_BATTERY } }, 236 { KE_KEY, 0x13d, { KEY_SLEEP } }, 237 { KE_KEY, 0x13e, { KEY_SUSPEND } }, 238 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } }, 239 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } }, 240 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } }, 241 { KE_KEY, 0x142, { KEY_WLAN } }, 242 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } }, 243 { KE_KEY, 0x17f, { KEY_FN } }, 244 { KE_KEY, 0xb05, { KEY_PROG2 } }, 245 { KE_KEY, 0xb06, { KEY_WWW } }, 246 { KE_KEY, 0xb07, { KEY_MAIL } }, 247 { KE_KEY, 0xb30, { KEY_STOP } }, 248 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } }, 249 { KE_KEY, 0xb32, { KEY_NEXTSONG } }, 250 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } }, 251 { KE_KEY, 0xb5a, { KEY_MEDIA } }, 252 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */ 253 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */ 254 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */ 255 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */ 256 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */ 257 { KE_END, 0 }, 258 }; 259 260 static const struct key_entry toshiba_acpi_alt_keymap[] = { 261 { KE_KEY, 0x102, { KEY_ZOOMOUT } }, 262 { KE_KEY, 0x103, { KEY_ZOOMIN } }, 263 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } }, 264 { KE_KEY, 0x139, { KEY_ZOOMRESET } }, 265 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } }, 266 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } }, 267 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } }, 268 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } }, 269 { KE_KEY, 0x157, { KEY_MUTE } }, 270 { KE_KEY, 0x158, { KEY_WLAN } }, 271 { KE_END, 0 }, 272 }; 273 274 /* 275 * List of models which have a broken acpi-video backlight interface and thus 276 * need to use the toshiba (vendor) interface instead. 277 */ 278 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = { 279 {} 280 }; 281 282 /* 283 * Utility 284 */ 285 286 static inline void _set_bit(u32 *word, u32 mask, int value) 287 { 288 *word = (*word & ~mask) | (mask * value); 289 } 290 291 /* 292 * ACPI interface wrappers 293 */ 294 295 static int write_acpi_int(const char *methodName, int val) 296 { 297 acpi_status status; 298 299 status = acpi_execute_simple_method(NULL, (char *)methodName, val); 300 return (status == AE_OK) ? 0 : -EIO; 301 } 302 303 /* 304 * Perform a raw configuration call. Here we don't care about input or output 305 * buffer format. 306 */ 307 static acpi_status tci_raw(struct toshiba_acpi_dev *dev, 308 const u32 in[TCI_WORDS], u32 out[TCI_WORDS]) 309 { 310 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1]; 311 struct acpi_object_list params; 312 struct acpi_buffer results; 313 acpi_status status; 314 int i; 315 316 params.count = TCI_WORDS; 317 params.pointer = in_objs; 318 for (i = 0; i < TCI_WORDS; ++i) { 319 in_objs[i].type = ACPI_TYPE_INTEGER; 320 in_objs[i].integer.value = in[i]; 321 } 322 323 results.length = sizeof(out_objs); 324 results.pointer = out_objs; 325 326 status = acpi_evaluate_object(dev->acpi_dev->handle, 327 (char *)dev->method_hci, ¶ms, 328 &results); 329 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) { 330 for (i = 0; i < out_objs->package.count; ++i) 331 out[i] = out_objs->package.elements[i].integer.value; 332 } 333 334 return status; 335 } 336 337 /* 338 * Common hci tasks 339 * 340 * In addition to the ACPI status, the HCI system returns a result which 341 * may be useful (such as "not supported"). 342 */ 343 344 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1) 345 { 346 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 }; 347 u32 out[TCI_WORDS]; 348 acpi_status status = tci_raw(dev, in, out); 349 350 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE; 351 } 352 353 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1) 354 { 355 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 }; 356 u32 out[TCI_WORDS]; 357 acpi_status status = tci_raw(dev, in, out); 358 359 if (ACPI_FAILURE(status)) 360 return TOS_FAILURE; 361 362 *out1 = out[2]; 363 364 return out[0]; 365 } 366 367 /* 368 * Common sci tasks 369 */ 370 371 static int sci_open(struct toshiba_acpi_dev *dev) 372 { 373 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 }; 374 u32 out[TCI_WORDS]; 375 acpi_status status = tci_raw(dev, in, out); 376 377 if (ACPI_FAILURE(status)) { 378 pr_err("ACPI call to open SCI failed\n"); 379 return 0; 380 } 381 382 if (out[0] == TOS_OPEN_CLOSE_OK) { 383 return 1; 384 } else if (out[0] == TOS_ALREADY_OPEN) { 385 pr_info("Toshiba SCI already opened\n"); 386 return 1; 387 } else if (out[0] == TOS_NOT_SUPPORTED) { 388 /* 389 * Some BIOSes do not have the SCI open/close functions 390 * implemented and return 0x8000 (Not Supported), failing to 391 * register some supported features. 392 * 393 * Simply return 1 if we hit those affected laptops to make the 394 * supported features work. 395 * 396 * In the case that some laptops really do not support the SCI, 397 * all the SCI dependent functions check for TOS_NOT_SUPPORTED, 398 * and thus, not registering support for the queried feature. 399 */ 400 return 1; 401 } else if (out[0] == TOS_NOT_PRESENT) { 402 pr_info("Toshiba SCI is not present\n"); 403 } 404 405 return 0; 406 } 407 408 static void sci_close(struct toshiba_acpi_dev *dev) 409 { 410 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 }; 411 u32 out[TCI_WORDS]; 412 acpi_status status = tci_raw(dev, in, out); 413 414 if (ACPI_FAILURE(status)) { 415 pr_err("ACPI call to close SCI failed\n"); 416 return; 417 } 418 419 if (out[0] == TOS_OPEN_CLOSE_OK) 420 return; 421 else if (out[0] == TOS_NOT_OPENED) 422 pr_info("Toshiba SCI not opened\n"); 423 else if (out[0] == TOS_NOT_PRESENT) 424 pr_info("Toshiba SCI is not present\n"); 425 } 426 427 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1) 428 { 429 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 }; 430 u32 out[TCI_WORDS]; 431 acpi_status status = tci_raw(dev, in, out); 432 433 if (ACPI_FAILURE(status)) 434 return TOS_FAILURE; 435 436 *out1 = out[2]; 437 438 return out[0]; 439 } 440 441 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1) 442 { 443 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 }; 444 u32 out[TCI_WORDS]; 445 acpi_status status = tci_raw(dev, in, out); 446 447 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE; 448 } 449 450 /* Illumination support */ 451 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev) 452 { 453 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 }; 454 u32 out[TCI_WORDS]; 455 acpi_status status; 456 457 dev->illumination_supported = 0; 458 459 if (!sci_open(dev)) 460 return; 461 462 status = tci_raw(dev, in, out); 463 sci_close(dev); 464 if (ACPI_FAILURE(status)) { 465 pr_err("ACPI call to query Illumination support failed\n"); 466 return; 467 } 468 469 if (out[0] != TOS_SUCCESS) 470 return; 471 472 dev->illumination_supported = 1; 473 } 474 475 static void toshiba_illumination_set(struct led_classdev *cdev, 476 enum led_brightness brightness) 477 { 478 struct toshiba_acpi_dev *dev = container_of(cdev, 479 struct toshiba_acpi_dev, led_dev); 480 u32 result; 481 u32 state; 482 483 /* First request : initialize communication. */ 484 if (!sci_open(dev)) 485 return; 486 487 /* Switch the illumination on/off */ 488 state = brightness ? 1 : 0; 489 result = sci_write(dev, SCI_ILLUMINATION, state); 490 sci_close(dev); 491 if (result == TOS_FAILURE) 492 pr_err("ACPI call for illumination failed\n"); 493 } 494 495 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev) 496 { 497 struct toshiba_acpi_dev *dev = container_of(cdev, 498 struct toshiba_acpi_dev, led_dev); 499 u32 result; 500 u32 state; 501 502 /* First request : initialize communication. */ 503 if (!sci_open(dev)) 504 return LED_OFF; 505 506 /* Check the illumination */ 507 result = sci_read(dev, SCI_ILLUMINATION, &state); 508 sci_close(dev); 509 if (result == TOS_FAILURE) { 510 pr_err("ACPI call for illumination failed\n"); 511 return LED_OFF; 512 } else if (result != TOS_SUCCESS) { 513 return LED_OFF; 514 } 515 516 return state ? LED_FULL : LED_OFF; 517 } 518 519 /* KBD Illumination */ 520 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev) 521 { 522 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 }; 523 u32 out[TCI_WORDS]; 524 acpi_status status; 525 526 dev->kbd_illum_supported = 0; 527 dev->kbd_event_generated = false; 528 529 if (!sci_open(dev)) 530 return; 531 532 status = tci_raw(dev, in, out); 533 sci_close(dev); 534 if (ACPI_FAILURE(status)) { 535 pr_err("ACPI call to query kbd illumination support failed\n"); 536 return; 537 } 538 539 if (out[0] != TOS_SUCCESS) 540 return; 541 542 /* 543 * Check for keyboard backlight timeout max value, 544 * previous kbd backlight implementation set this to 545 * 0x3c0003, and now the new implementation set this 546 * to 0x3c001a, use this to distinguish between them. 547 */ 548 if (out[3] == SCI_KBD_TIME_MAX) 549 dev->kbd_type = 2; 550 else 551 dev->kbd_type = 1; 552 /* Get the current keyboard backlight mode */ 553 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK; 554 /* Get the current time (1-60 seconds) */ 555 dev->kbd_time = out[2] >> HCI_MISC_SHIFT; 556 /* Flag as supported */ 557 dev->kbd_illum_supported = 1; 558 } 559 560 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time) 561 { 562 u32 result; 563 564 if (!sci_open(dev)) 565 return -EIO; 566 567 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time); 568 sci_close(dev); 569 if (result == TOS_FAILURE) 570 pr_err("ACPI call to set KBD backlight status failed\n"); 571 else if (result == TOS_NOT_SUPPORTED) 572 return -ENODEV; 573 574 return result == TOS_SUCCESS ? 0 : -EIO; 575 } 576 577 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time) 578 { 579 u32 result; 580 581 if (!sci_open(dev)) 582 return -EIO; 583 584 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time); 585 sci_close(dev); 586 if (result == TOS_FAILURE) 587 pr_err("ACPI call to get KBD backlight status failed\n"); 588 else if (result == TOS_NOT_SUPPORTED) 589 return -ENODEV; 590 591 return result == TOS_SUCCESS ? 0 : -EIO; 592 } 593 594 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev) 595 { 596 struct toshiba_acpi_dev *dev = container_of(cdev, 597 struct toshiba_acpi_dev, kbd_led); 598 u32 result; 599 u32 state; 600 601 /* Check the keyboard backlight state */ 602 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state); 603 if (result == TOS_FAILURE) { 604 pr_err("ACPI call to get the keyboard backlight failed\n"); 605 return LED_OFF; 606 } else if (result != TOS_SUCCESS) { 607 return LED_OFF; 608 } 609 610 return state ? LED_FULL : LED_OFF; 611 } 612 613 static void toshiba_kbd_backlight_set(struct led_classdev *cdev, 614 enum led_brightness brightness) 615 { 616 struct toshiba_acpi_dev *dev = container_of(cdev, 617 struct toshiba_acpi_dev, kbd_led); 618 u32 result; 619 u32 state; 620 621 /* Set the keyboard backlight state */ 622 state = brightness ? 1 : 0; 623 result = hci_write(dev, HCI_KBD_ILLUMINATION, state); 624 if (result == TOS_FAILURE) 625 pr_err("ACPI call to set KBD Illumination mode failed\n"); 626 } 627 628 /* TouchPad support */ 629 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state) 630 { 631 u32 result; 632 633 if (!sci_open(dev)) 634 return -EIO; 635 636 result = sci_write(dev, SCI_TOUCHPAD, state); 637 sci_close(dev); 638 if (result == TOS_FAILURE) 639 pr_err("ACPI call to set the touchpad failed\n"); 640 else if (result == TOS_NOT_SUPPORTED) 641 return -ENODEV; 642 643 return result == TOS_SUCCESS ? 0 : -EIO; 644 } 645 646 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state) 647 { 648 u32 result; 649 650 if (!sci_open(dev)) 651 return -EIO; 652 653 result = sci_read(dev, SCI_TOUCHPAD, state); 654 sci_close(dev); 655 if (result == TOS_FAILURE) 656 pr_err("ACPI call to query the touchpad failed\n"); 657 else if (result == TOS_NOT_SUPPORTED) 658 return -ENODEV; 659 660 return result == TOS_SUCCESS ? 0 : -EIO; 661 } 662 663 /* Eco Mode support */ 664 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev) 665 { 666 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 }; 667 u32 out[TCI_WORDS]; 668 acpi_status status; 669 670 dev->eco_supported = 0; 671 672 status = tci_raw(dev, in, out); 673 if (ACPI_FAILURE(status)) { 674 pr_err("ACPI call to get ECO led failed\n"); 675 return; 676 } 677 678 if (out[0] == TOS_INPUT_DATA_ERROR) { 679 /* 680 * If we receive 0x8300 (Input Data Error), it means that the 681 * LED device is present, but that we just screwed the input 682 * parameters. 683 * 684 * Let's query the status of the LED to see if we really have a 685 * success response, indicating the actual presense of the LED, 686 * bail out otherwise. 687 */ 688 in[3] = 1; 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_SUCCESS) 696 return; 697 698 dev->eco_supported = 1; 699 } 700 } 701 702 static enum led_brightness 703 toshiba_eco_mode_get_status(struct led_classdev *cdev) 704 { 705 struct toshiba_acpi_dev *dev = container_of(cdev, 706 struct toshiba_acpi_dev, eco_led); 707 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 }; 708 u32 out[TCI_WORDS]; 709 acpi_status status; 710 711 status = tci_raw(dev, in, out); 712 if (ACPI_FAILURE(status)) { 713 pr_err("ACPI call to get ECO led failed\n"); 714 return LED_OFF; 715 } 716 717 if (out[0] != TOS_SUCCESS) 718 return LED_OFF; 719 720 return out[2] ? LED_FULL : LED_OFF; 721 } 722 723 static void toshiba_eco_mode_set_status(struct led_classdev *cdev, 724 enum led_brightness brightness) 725 { 726 struct toshiba_acpi_dev *dev = container_of(cdev, 727 struct toshiba_acpi_dev, eco_led); 728 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 }; 729 u32 out[TCI_WORDS]; 730 acpi_status status; 731 732 /* Switch the Eco Mode led on/off */ 733 in[2] = (brightness) ? 1 : 0; 734 status = tci_raw(dev, in, out); 735 if (ACPI_FAILURE(status)) 736 pr_err("ACPI call to set ECO led failed\n"); 737 } 738 739 /* Accelerometer support */ 740 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev) 741 { 742 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 }; 743 u32 out[TCI_WORDS]; 744 acpi_status status; 745 746 dev->accelerometer_supported = 0; 747 748 /* 749 * Check if the accelerometer call exists, 750 * this call also serves as initialization 751 */ 752 status = tci_raw(dev, in, out); 753 if (ACPI_FAILURE(status)) { 754 pr_err("ACPI call to query the accelerometer failed\n"); 755 return; 756 } 757 758 if (out[0] != TOS_SUCCESS) 759 return; 760 761 dev->accelerometer_supported = 1; 762 } 763 764 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev, 765 u32 *xy, u32 *z) 766 { 767 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 }; 768 u32 out[TCI_WORDS]; 769 acpi_status status; 770 771 /* Check the Accelerometer status */ 772 status = tci_raw(dev, in, out); 773 if (ACPI_FAILURE(status)) { 774 pr_err("ACPI call to query the accelerometer failed\n"); 775 return -EIO; 776 } 777 778 if (out[0] == TOS_NOT_SUPPORTED) 779 return -ENODEV; 780 781 if (out[0] != TOS_SUCCESS) 782 return -EIO; 783 784 *xy = out[2]; 785 *z = out[4]; 786 787 return 0; 788 } 789 790 /* Sleep (Charge and Music) utilities support */ 791 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev) 792 { 793 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 794 u32 out[TCI_WORDS]; 795 acpi_status status; 796 797 dev->usb_sleep_charge_supported = 0; 798 799 if (!sci_open(dev)) 800 return; 801 802 status = tci_raw(dev, in, out); 803 if (ACPI_FAILURE(status)) { 804 pr_err("ACPI call to get USB Sleep and Charge mode failed\n"); 805 sci_close(dev); 806 return; 807 } 808 809 if (out[0] != TOS_SUCCESS) { 810 sci_close(dev); 811 return; 812 } 813 814 dev->usbsc_mode_base = out[4]; 815 816 in[5] = SCI_USB_CHARGE_BAT_LVL; 817 status = tci_raw(dev, in, out); 818 sci_close(dev); 819 if (ACPI_FAILURE(status)) { 820 pr_err("ACPI call to get USB Sleep and Charge mode failed\n"); 821 return; 822 } 823 824 if (out[0] != TOS_SUCCESS) 825 return; 826 827 dev->usbsc_bat_level = out[2]; 828 /* Flag as supported */ 829 dev->usb_sleep_charge_supported = 1; 830 } 831 832 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev, 833 u32 *mode) 834 { 835 u32 result; 836 837 if (!sci_open(dev)) 838 return -EIO; 839 840 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode); 841 sci_close(dev); 842 if (result == TOS_FAILURE) 843 pr_err("ACPI call to set USB S&C mode failed\n"); 844 else if (result == TOS_NOT_SUPPORTED) 845 return -ENODEV; 846 847 return result == TOS_SUCCESS ? 0 : -EIO; 848 } 849 850 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev, 851 u32 mode) 852 { 853 u32 result; 854 855 if (!sci_open(dev)) 856 return -EIO; 857 858 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode); 859 sci_close(dev); 860 if (result == TOS_FAILURE) 861 pr_err("ACPI call to set USB S&C mode failed\n"); 862 else if (result == TOS_NOT_SUPPORTED) 863 return -ENODEV; 864 865 return result == TOS_SUCCESS ? 0 : -EIO; 866 } 867 868 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev, 869 u32 *mode) 870 { 871 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 872 u32 out[TCI_WORDS]; 873 acpi_status status; 874 875 if (!sci_open(dev)) 876 return -EIO; 877 878 in[5] = SCI_USB_CHARGE_BAT_LVL; 879 status = tci_raw(dev, in, out); 880 sci_close(dev); 881 if (ACPI_FAILURE(status)) { 882 pr_err("ACPI call to get USB S&C battery level failed\n"); 883 return -EIO; 884 } 885 886 if (out[0] == TOS_NOT_SUPPORTED) 887 return -ENODEV; 888 889 if (out[0] != TOS_SUCCESS) 890 return -EIO; 891 892 *mode = out[2]; 893 894 return 0; 895 896 } 897 898 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev, 899 u32 mode) 900 { 901 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 902 u32 out[TCI_WORDS]; 903 acpi_status status; 904 905 if (!sci_open(dev)) 906 return -EIO; 907 908 in[2] = mode; 909 in[5] = SCI_USB_CHARGE_BAT_LVL; 910 status = tci_raw(dev, in, out); 911 sci_close(dev); 912 if (ACPI_FAILURE(status)) { 913 pr_err("ACPI call to set USB S&C battery level failed\n"); 914 return -EIO; 915 } 916 917 if (out[0] == TOS_NOT_SUPPORTED) 918 return -ENODEV; 919 920 return out[0] == TOS_SUCCESS ? 0 : -EIO; 921 } 922 923 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev, 924 u32 *state) 925 { 926 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 927 u32 out[TCI_WORDS]; 928 acpi_status status; 929 930 if (!sci_open(dev)) 931 return -EIO; 932 933 in[5] = SCI_USB_CHARGE_RAPID_DSP; 934 status = tci_raw(dev, in, out); 935 sci_close(dev); 936 if (ACPI_FAILURE(status)) { 937 pr_err("ACPI call to get USB Rapid Charge failed\n"); 938 return -EIO; 939 } 940 941 if (out[0] == TOS_NOT_SUPPORTED) 942 return -ENODEV; 943 944 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2) 945 return -EIO; 946 947 *state = out[2]; 948 949 return 0; 950 } 951 952 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev, 953 u32 state) 954 { 955 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 956 u32 out[TCI_WORDS]; 957 acpi_status status; 958 959 if (!sci_open(dev)) 960 return -EIO; 961 962 in[2] = state; 963 in[5] = SCI_USB_CHARGE_RAPID_DSP; 964 status = tci_raw(dev, in, out); 965 sci_close(dev); 966 if (ACPI_FAILURE(status)) { 967 pr_err("ACPI call to set USB Rapid Charge failed\n"); 968 return -EIO; 969 } 970 971 if (out[0] == TOS_NOT_SUPPORTED) 972 return -ENODEV; 973 974 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO; 975 } 976 977 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state) 978 { 979 u32 result; 980 981 if (!sci_open(dev)) 982 return -EIO; 983 984 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state); 985 sci_close(dev); 986 if (result == TOS_FAILURE) 987 pr_err("ACPI call to get Sleep and Music failed\n"); 988 else if (result == TOS_NOT_SUPPORTED) 989 return -ENODEV; 990 991 return result == TOS_SUCCESS ? 0 : -EIO; 992 } 993 994 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state) 995 { 996 u32 result; 997 998 if (!sci_open(dev)) 999 return -EIO; 1000 1001 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state); 1002 sci_close(dev); 1003 if (result == TOS_FAILURE) 1004 pr_err("ACPI call to set 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 /* Keyboard function keys */ 1012 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode) 1013 { 1014 u32 result; 1015 1016 if (!sci_open(dev)) 1017 return -EIO; 1018 1019 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode); 1020 sci_close(dev); 1021 if (result == TOS_FAILURE) 1022 pr_err("ACPI call to get KBD function keys failed\n"); 1023 else if (result == TOS_NOT_SUPPORTED) 1024 return -ENODEV; 1025 1026 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1027 } 1028 1029 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode) 1030 { 1031 u32 result; 1032 1033 if (!sci_open(dev)) 1034 return -EIO; 1035 1036 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode); 1037 sci_close(dev); 1038 if (result == TOS_FAILURE) 1039 pr_err("ACPI call to set 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 /* Panel Power ON */ 1047 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state) 1048 { 1049 u32 result; 1050 1051 if (!sci_open(dev)) 1052 return -EIO; 1053 1054 result = sci_read(dev, SCI_PANEL_POWER_ON, state); 1055 sci_close(dev); 1056 if (result == TOS_FAILURE) 1057 pr_err("ACPI call to get Panel Power ON failed\n"); 1058 else if (result == TOS_NOT_SUPPORTED) 1059 return -ENODEV; 1060 1061 return result == TOS_SUCCESS ? 0 : -EIO; 1062 } 1063 1064 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state) 1065 { 1066 u32 result; 1067 1068 if (!sci_open(dev)) 1069 return -EIO; 1070 1071 result = sci_write(dev, SCI_PANEL_POWER_ON, state); 1072 sci_close(dev); 1073 if (result == TOS_FAILURE) 1074 pr_err("ACPI call to set 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 /* USB Three */ 1082 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state) 1083 { 1084 u32 result; 1085 1086 if (!sci_open(dev)) 1087 return -EIO; 1088 1089 result = sci_read(dev, SCI_USB_THREE, state); 1090 sci_close(dev); 1091 if (result == TOS_FAILURE) 1092 pr_err("ACPI call to get USB 3 failed\n"); 1093 else if (result == TOS_NOT_SUPPORTED) 1094 return -ENODEV; 1095 1096 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1097 } 1098 1099 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state) 1100 { 1101 u32 result; 1102 1103 if (!sci_open(dev)) 1104 return -EIO; 1105 1106 result = sci_write(dev, SCI_USB_THREE, state); 1107 sci_close(dev); 1108 if (result == TOS_FAILURE) 1109 pr_err("ACPI call to set 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 /* Hotkey Event type */ 1117 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev, 1118 u32 *type) 1119 { 1120 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 }; 1121 u32 out[TCI_WORDS]; 1122 acpi_status status; 1123 1124 status = tci_raw(dev, in, out); 1125 if (ACPI_FAILURE(status)) { 1126 pr_err("ACPI call to get System type failed\n"); 1127 return -EIO; 1128 } 1129 1130 if (out[0] == TOS_NOT_SUPPORTED) 1131 return -ENODEV; 1132 1133 if (out[0] != TOS_SUCCESS) 1134 return -EIO; 1135 1136 *type = out[3]; 1137 1138 return 0; 1139 } 1140 1141 /* Wireless status (RFKill, WLAN, BT, WWAN) */ 1142 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev) 1143 { 1144 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 }; 1145 u32 out[TCI_WORDS]; 1146 acpi_status status; 1147 1148 in[3] = HCI_WIRELESS_STATUS; 1149 status = tci_raw(dev, in, out); 1150 1151 if (ACPI_FAILURE(status)) { 1152 pr_err("ACPI call to get Wireless status failed\n"); 1153 return -EIO; 1154 } 1155 1156 if (out[0] == TOS_NOT_SUPPORTED) 1157 return -ENODEV; 1158 1159 if (out[0] != TOS_SUCCESS) 1160 return -EIO; 1161 1162 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS); 1163 1164 return 0; 1165 } 1166 1167 /* WWAN */ 1168 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev) 1169 { 1170 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 }; 1171 u32 out[TCI_WORDS]; 1172 acpi_status status; 1173 1174 dev->wwan_supported = 0; 1175 1176 /* 1177 * WWAN support can be queried by setting the in[3] value to 1178 * HCI_WIRELESS_WWAN (0x03). 1179 * 1180 * If supported, out[0] contains TOS_SUCCESS and out[2] contains 1181 * HCI_WIRELESS_WWAN_STATUS (0x2000). 1182 * 1183 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300) 1184 * or TOS_NOT_SUPPORTED (0x8000). 1185 */ 1186 in[3] = HCI_WIRELESS_WWAN; 1187 status = tci_raw(dev, in, out); 1188 if (ACPI_FAILURE(status)) { 1189 pr_err("ACPI call to get WWAN status failed\n"); 1190 return; 1191 } 1192 1193 if (out[0] != TOS_SUCCESS) 1194 return; 1195 1196 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS); 1197 } 1198 1199 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state) 1200 { 1201 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 }; 1202 u32 out[TCI_WORDS]; 1203 acpi_status status; 1204 1205 in[3] = HCI_WIRELESS_WWAN_STATUS; 1206 status = tci_raw(dev, in, out); 1207 if (ACPI_FAILURE(status)) { 1208 pr_err("ACPI call to set WWAN status failed\n"); 1209 return -EIO; 1210 } 1211 1212 if (out[0] == TOS_NOT_SUPPORTED) 1213 return -ENODEV; 1214 1215 if (out[0] != TOS_SUCCESS) 1216 return -EIO; 1217 1218 /* 1219 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to 1220 * (de)activate the device, but some others need the 1221 * HCI_WIRELESS_WWAN_POWER call as well. 1222 */ 1223 in[3] = HCI_WIRELESS_WWAN_POWER; 1224 status = tci_raw(dev, in, out); 1225 if (ACPI_FAILURE(status)) { 1226 pr_err("ACPI call to set WWAN power failed\n"); 1227 return -EIO; 1228 } 1229 1230 if (out[0] == TOS_NOT_SUPPORTED) 1231 return -ENODEV; 1232 1233 return out[0] == TOS_SUCCESS ? 0 : -EIO; 1234 } 1235 1236 /* Cooling Method */ 1237 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev) 1238 { 1239 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 }; 1240 u32 out[TCI_WORDS]; 1241 acpi_status status; 1242 1243 dev->cooling_method_supported = 0; 1244 dev->max_cooling_method = 0; 1245 1246 status = tci_raw(dev, in, out); 1247 if (ACPI_FAILURE(status)) { 1248 pr_err("ACPI call to get Cooling Method failed\n"); 1249 return; 1250 } 1251 1252 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2) 1253 return; 1254 1255 dev->cooling_method_supported = 1; 1256 dev->max_cooling_method = out[3]; 1257 } 1258 1259 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state) 1260 { 1261 u32 result = hci_read(dev, HCI_COOLING_METHOD, state); 1262 1263 if (result == TOS_FAILURE) 1264 pr_err("ACPI call to get Cooling Method failed\n"); 1265 1266 if (result == TOS_NOT_SUPPORTED) 1267 return -ENODEV; 1268 1269 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1270 } 1271 1272 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state) 1273 { 1274 u32 result = hci_write(dev, HCI_COOLING_METHOD, state); 1275 1276 if (result == TOS_FAILURE) 1277 pr_err("ACPI call to set Cooling Method failed\n"); 1278 1279 if (result == TOS_NOT_SUPPORTED) 1280 return -ENODEV; 1281 1282 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1283 } 1284 1285 /* Transflective Backlight */ 1286 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status) 1287 { 1288 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status); 1289 1290 if (result == TOS_FAILURE) 1291 pr_err("ACPI call to get Transflective Backlight failed\n"); 1292 else if (result == TOS_NOT_SUPPORTED) 1293 return -ENODEV; 1294 1295 return result == TOS_SUCCESS ? 0 : -EIO; 1296 } 1297 1298 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status) 1299 { 1300 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status); 1301 1302 if (result == TOS_FAILURE) 1303 pr_err("ACPI call to set Transflective Backlight failed\n"); 1304 else if (result == TOS_NOT_SUPPORTED) 1305 return -ENODEV; 1306 1307 return result == TOS_SUCCESS ? 0 : -EIO; 1308 } 1309 1310 static struct proc_dir_entry *toshiba_proc_dir; 1311 1312 /* LCD Brightness */ 1313 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev) 1314 { 1315 int brightness = 0; 1316 u32 result; 1317 u32 value; 1318 1319 if (dev->tr_backlight_supported) { 1320 int ret = get_tr_backlight_status(dev, &value); 1321 1322 if (ret) 1323 return ret; 1324 if (value) 1325 return 0; 1326 brightness++; 1327 } 1328 1329 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value); 1330 if (result == TOS_FAILURE) 1331 pr_err("ACPI call to get LCD Brightness failed\n"); 1332 else if (result == TOS_NOT_SUPPORTED) 1333 return -ENODEV; 1334 1335 return result == TOS_SUCCESS ? 1336 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) : 1337 -EIO; 1338 } 1339 1340 static int get_lcd_brightness(struct backlight_device *bd) 1341 { 1342 struct toshiba_acpi_dev *dev = bl_get_data(bd); 1343 1344 return __get_lcd_brightness(dev); 1345 } 1346 1347 static int lcd_proc_show(struct seq_file *m, void *v) 1348 { 1349 struct toshiba_acpi_dev *dev = m->private; 1350 int levels; 1351 int value; 1352 1353 if (!dev->backlight_dev) 1354 return -ENODEV; 1355 1356 levels = dev->backlight_dev->props.max_brightness + 1; 1357 value = get_lcd_brightness(dev->backlight_dev); 1358 if (value < 0) { 1359 pr_err("Error reading LCD brightness\n"); 1360 return value; 1361 } 1362 1363 seq_printf(m, "brightness: %d\n", value); 1364 seq_printf(m, "brightness_levels: %d\n", levels); 1365 1366 return 0; 1367 } 1368 1369 static int lcd_proc_open(struct inode *inode, struct file *file) 1370 { 1371 return single_open(file, lcd_proc_show, PDE_DATA(inode)); 1372 } 1373 1374 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value) 1375 { 1376 u32 result; 1377 1378 if (dev->tr_backlight_supported) { 1379 int ret = set_tr_backlight_status(dev, !value); 1380 1381 if (ret) 1382 return ret; 1383 if (value) 1384 value--; 1385 } 1386 1387 value = value << HCI_LCD_BRIGHTNESS_SHIFT; 1388 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value); 1389 if (result == TOS_FAILURE) 1390 pr_err("ACPI call to set LCD Brightness failed\n"); 1391 else if (result == TOS_NOT_SUPPORTED) 1392 return -ENODEV; 1393 1394 return result == TOS_SUCCESS ? 0 : -EIO; 1395 } 1396 1397 static int set_lcd_status(struct backlight_device *bd) 1398 { 1399 struct toshiba_acpi_dev *dev = bl_get_data(bd); 1400 1401 return set_lcd_brightness(dev, bd->props.brightness); 1402 } 1403 1404 static ssize_t lcd_proc_write(struct file *file, const char __user *buf, 1405 size_t count, loff_t *pos) 1406 { 1407 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); 1408 char cmd[42]; 1409 size_t len; 1410 int levels; 1411 int value; 1412 1413 len = min(count, sizeof(cmd) - 1); 1414 if (copy_from_user(cmd, buf, len)) 1415 return -EFAULT; 1416 cmd[len] = '\0'; 1417 1418 levels = dev->backlight_dev->props.max_brightness + 1; 1419 if (sscanf(cmd, " brightness : %i", &value) != 1 && 1420 value < 0 && value > levels) 1421 return -EINVAL; 1422 1423 if (set_lcd_brightness(dev, value)) 1424 return -EIO; 1425 1426 return count; 1427 } 1428 1429 static const struct proc_ops lcd_proc_ops = { 1430 .proc_open = lcd_proc_open, 1431 .proc_read = seq_read, 1432 .proc_lseek = seq_lseek, 1433 .proc_release = single_release, 1434 .proc_write = lcd_proc_write, 1435 }; 1436 1437 /* Video-Out */ 1438 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status) 1439 { 1440 u32 result = hci_read(dev, HCI_VIDEO_OUT, status); 1441 1442 if (result == TOS_FAILURE) 1443 pr_err("ACPI call to get Video-Out failed\n"); 1444 else if (result == TOS_NOT_SUPPORTED) 1445 return -ENODEV; 1446 1447 return result == TOS_SUCCESS ? 0 : -EIO; 1448 } 1449 1450 static int video_proc_show(struct seq_file *m, void *v) 1451 { 1452 struct toshiba_acpi_dev *dev = m->private; 1453 int is_lcd, is_crt, is_tv; 1454 u32 value; 1455 1456 if (get_video_status(dev, &value)) 1457 return -EIO; 1458 1459 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0; 1460 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0; 1461 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0; 1462 1463 seq_printf(m, "lcd_out: %d\n", is_lcd); 1464 seq_printf(m, "crt_out: %d\n", is_crt); 1465 seq_printf(m, "tv_out: %d\n", is_tv); 1466 1467 return 0; 1468 } 1469 1470 static int video_proc_open(struct inode *inode, struct file *file) 1471 { 1472 return single_open(file, video_proc_show, PDE_DATA(inode)); 1473 } 1474 1475 static ssize_t video_proc_write(struct file *file, const char __user *buf, 1476 size_t count, loff_t *pos) 1477 { 1478 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); 1479 char *buffer; 1480 char *cmd; 1481 int lcd_out = -1, crt_out = -1, tv_out = -1; 1482 int remain = count; 1483 int value; 1484 int ret; 1485 u32 video_out; 1486 1487 cmd = memdup_user_nul(buf, count); 1488 if (IS_ERR(cmd)) 1489 return PTR_ERR(cmd); 1490 1491 buffer = cmd; 1492 1493 /* 1494 * Scan expression. Multiple expressions may be delimited with ; 1495 * NOTE: To keep scanning simple, invalid fields are ignored. 1496 */ 1497 while (remain) { 1498 if (sscanf(buffer, " lcd_out : %i", &value) == 1) 1499 lcd_out = value & 1; 1500 else if (sscanf(buffer, " crt_out : %i", &value) == 1) 1501 crt_out = value & 1; 1502 else if (sscanf(buffer, " tv_out : %i", &value) == 1) 1503 tv_out = value & 1; 1504 /* Advance to one character past the next ; */ 1505 do { 1506 ++buffer; 1507 --remain; 1508 } while (remain && *(buffer - 1) != ';'); 1509 } 1510 1511 kfree(cmd); 1512 1513 ret = get_video_status(dev, &video_out); 1514 if (!ret) { 1515 unsigned int new_video_out = video_out; 1516 1517 if (lcd_out != -1) 1518 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out); 1519 if (crt_out != -1) 1520 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out); 1521 if (tv_out != -1) 1522 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out); 1523 /* 1524 * To avoid unnecessary video disruption, only write the new 1525 * video setting if something changed. 1526 */ 1527 if (new_video_out != video_out) 1528 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out); 1529 } 1530 1531 return ret ? -EIO : count; 1532 } 1533 1534 static const struct proc_ops video_proc_ops = { 1535 .proc_open = video_proc_open, 1536 .proc_read = seq_read, 1537 .proc_lseek = seq_lseek, 1538 .proc_release = single_release, 1539 .proc_write = video_proc_write, 1540 }; 1541 1542 /* Fan status */ 1543 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status) 1544 { 1545 u32 result = hci_read(dev, HCI_FAN, status); 1546 1547 if (result == TOS_FAILURE) 1548 pr_err("ACPI call to get Fan status failed\n"); 1549 else if (result == TOS_NOT_SUPPORTED) 1550 return -ENODEV; 1551 1552 return result == TOS_SUCCESS ? 0 : -EIO; 1553 } 1554 1555 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status) 1556 { 1557 u32 result = hci_write(dev, HCI_FAN, status); 1558 1559 if (result == TOS_FAILURE) 1560 pr_err("ACPI call to set Fan status failed\n"); 1561 else if (result == TOS_NOT_SUPPORTED) 1562 return -ENODEV; 1563 1564 return result == TOS_SUCCESS ? 0 : -EIO; 1565 } 1566 1567 static int fan_proc_show(struct seq_file *m, void *v) 1568 { 1569 struct toshiba_acpi_dev *dev = m->private; 1570 u32 value; 1571 1572 if (get_fan_status(dev, &value)) 1573 return -EIO; 1574 1575 seq_printf(m, "running: %d\n", (value > 0)); 1576 seq_printf(m, "force_on: %d\n", dev->force_fan); 1577 1578 return 0; 1579 } 1580 1581 static int fan_proc_open(struct inode *inode, struct file *file) 1582 { 1583 return single_open(file, fan_proc_show, PDE_DATA(inode)); 1584 } 1585 1586 static ssize_t fan_proc_write(struct file *file, const char __user *buf, 1587 size_t count, loff_t *pos) 1588 { 1589 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); 1590 char cmd[42]; 1591 size_t len; 1592 int value; 1593 1594 len = min(count, sizeof(cmd) - 1); 1595 if (copy_from_user(cmd, buf, len)) 1596 return -EFAULT; 1597 cmd[len] = '\0'; 1598 1599 if (sscanf(cmd, " force_on : %i", &value) != 1 && 1600 value != 0 && value != 1) 1601 return -EINVAL; 1602 1603 if (set_fan_status(dev, value)) 1604 return -EIO; 1605 1606 dev->force_fan = value; 1607 1608 return count; 1609 } 1610 1611 static const struct proc_ops fan_proc_ops = { 1612 .proc_open = fan_proc_open, 1613 .proc_read = seq_read, 1614 .proc_lseek = seq_lseek, 1615 .proc_release = single_release, 1616 .proc_write = fan_proc_write, 1617 }; 1618 1619 static int keys_proc_show(struct seq_file *m, void *v) 1620 { 1621 struct toshiba_acpi_dev *dev = m->private; 1622 1623 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid); 1624 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event); 1625 1626 return 0; 1627 } 1628 1629 static int keys_proc_open(struct inode *inode, struct file *file) 1630 { 1631 return single_open(file, keys_proc_show, PDE_DATA(inode)); 1632 } 1633 1634 static ssize_t keys_proc_write(struct file *file, const char __user *buf, 1635 size_t count, loff_t *pos) 1636 { 1637 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); 1638 char cmd[42]; 1639 size_t len; 1640 int value; 1641 1642 len = min(count, sizeof(cmd) - 1); 1643 if (copy_from_user(cmd, buf, len)) 1644 return -EFAULT; 1645 cmd[len] = '\0'; 1646 1647 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) 1648 dev->key_event_valid = 0; 1649 else 1650 return -EINVAL; 1651 1652 return count; 1653 } 1654 1655 static const struct proc_ops keys_proc_ops = { 1656 .proc_open = keys_proc_open, 1657 .proc_read = seq_read, 1658 .proc_lseek = seq_lseek, 1659 .proc_release = single_release, 1660 .proc_write = keys_proc_write, 1661 }; 1662 1663 static int __maybe_unused version_proc_show(struct seq_file *m, void *v) 1664 { 1665 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION); 1666 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION); 1667 return 0; 1668 } 1669 1670 /* 1671 * Proc and module init 1672 */ 1673 1674 #define PROC_TOSHIBA "toshiba" 1675 1676 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev) 1677 { 1678 if (dev->backlight_dev) 1679 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1680 &lcd_proc_ops, dev); 1681 if (dev->video_supported) 1682 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1683 &video_proc_ops, dev); 1684 if (dev->fan_supported) 1685 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1686 &fan_proc_ops, dev); 1687 if (dev->hotkey_dev) 1688 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1689 &keys_proc_ops, dev); 1690 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir, 1691 version_proc_show, dev); 1692 } 1693 1694 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev) 1695 { 1696 if (dev->backlight_dev) 1697 remove_proc_entry("lcd", toshiba_proc_dir); 1698 if (dev->video_supported) 1699 remove_proc_entry("video", toshiba_proc_dir); 1700 if (dev->fan_supported) 1701 remove_proc_entry("fan", toshiba_proc_dir); 1702 if (dev->hotkey_dev) 1703 remove_proc_entry("keys", toshiba_proc_dir); 1704 remove_proc_entry("version", toshiba_proc_dir); 1705 } 1706 1707 static const struct backlight_ops toshiba_backlight_data = { 1708 .options = BL_CORE_SUSPENDRESUME, 1709 .get_brightness = get_lcd_brightness, 1710 .update_status = set_lcd_status, 1711 }; 1712 1713 /* Keyboard backlight work */ 1714 static void toshiba_acpi_kbd_bl_work(struct work_struct *work); 1715 1716 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work); 1717 1718 /* 1719 * Sysfs files 1720 */ 1721 static ssize_t version_show(struct device *dev, 1722 struct device_attribute *attr, char *buf) 1723 { 1724 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION); 1725 } 1726 static DEVICE_ATTR_RO(version); 1727 1728 static ssize_t fan_store(struct device *dev, 1729 struct device_attribute *attr, 1730 const char *buf, size_t count) 1731 { 1732 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1733 int state; 1734 int ret; 1735 1736 ret = kstrtoint(buf, 0, &state); 1737 if (ret) 1738 return ret; 1739 1740 if (state != 0 && state != 1) 1741 return -EINVAL; 1742 1743 ret = set_fan_status(toshiba, state); 1744 if (ret) 1745 return ret; 1746 1747 return count; 1748 } 1749 1750 static ssize_t fan_show(struct device *dev, 1751 struct device_attribute *attr, char *buf) 1752 { 1753 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1754 u32 value; 1755 int ret; 1756 1757 ret = get_fan_status(toshiba, &value); 1758 if (ret) 1759 return ret; 1760 1761 return sprintf(buf, "%d\n", value); 1762 } 1763 static DEVICE_ATTR_RW(fan); 1764 1765 static ssize_t kbd_backlight_mode_store(struct device *dev, 1766 struct device_attribute *attr, 1767 const char *buf, size_t count) 1768 { 1769 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1770 int mode; 1771 int ret; 1772 1773 1774 ret = kstrtoint(buf, 0, &mode); 1775 if (ret) 1776 return ret; 1777 1778 /* Check for supported modes depending on keyboard backlight type */ 1779 if (toshiba->kbd_type == 1) { 1780 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */ 1781 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO) 1782 return -EINVAL; 1783 } else if (toshiba->kbd_type == 2) { 1784 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */ 1785 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON && 1786 mode != SCI_KBD_MODE_OFF) 1787 return -EINVAL; 1788 } 1789 1790 /* 1791 * Set the Keyboard Backlight Mode where: 1792 * Auto - KBD backlight turns off automatically in given time 1793 * FN-Z - KBD backlight "toggles" when hotkey pressed 1794 * ON - KBD backlight is always on 1795 * OFF - KBD backlight is always off 1796 */ 1797 1798 /* Only make a change if the actual mode has changed */ 1799 if (toshiba->kbd_mode != mode) { 1800 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */ 1801 int time = toshiba->kbd_time << HCI_MISC_SHIFT; 1802 1803 /* OR the "base time" to the actual method format */ 1804 if (toshiba->kbd_type == 1) { 1805 /* Type 1 requires the current mode */ 1806 time |= toshiba->kbd_mode; 1807 } else if (toshiba->kbd_type == 2) { 1808 /* Type 2 requires the desired mode */ 1809 time |= mode; 1810 } 1811 1812 ret = toshiba_kbd_illum_status_set(toshiba, time); 1813 if (ret) 1814 return ret; 1815 1816 toshiba->kbd_mode = mode; 1817 toshiba_acpi->kbd_mode = mode; 1818 1819 /* 1820 * Some laptop models with the second generation backlit 1821 * keyboard (type 2) do not generate the keyboard backlight 1822 * changed event (0x92), and thus, the driver will never update 1823 * the sysfs entries. 1824 * 1825 * The event is generated right when changing the keyboard 1826 * backlight mode and the *notify function will set the 1827 * kbd_event_generated to true. 1828 * 1829 * In case the event is not generated, schedule the keyboard 1830 * backlight work to update the sysfs entries and emulate the 1831 * event via genetlink. 1832 */ 1833 if (toshiba->kbd_type == 2 && 1834 !toshiba->kbd_event_generated) 1835 schedule_work(&kbd_bl_work); 1836 } 1837 1838 return count; 1839 } 1840 1841 static ssize_t kbd_backlight_mode_show(struct device *dev, 1842 struct device_attribute *attr, 1843 char *buf) 1844 { 1845 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1846 u32 time; 1847 1848 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0) 1849 return -EIO; 1850 1851 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK); 1852 } 1853 static DEVICE_ATTR_RW(kbd_backlight_mode); 1854 1855 static ssize_t kbd_type_show(struct device *dev, 1856 struct device_attribute *attr, char *buf) 1857 { 1858 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1859 1860 return sprintf(buf, "%d\n", toshiba->kbd_type); 1861 } 1862 static DEVICE_ATTR_RO(kbd_type); 1863 1864 static ssize_t available_kbd_modes_show(struct device *dev, 1865 struct device_attribute *attr, 1866 char *buf) 1867 { 1868 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1869 1870 if (toshiba->kbd_type == 1) 1871 return sprintf(buf, "0x%x 0x%x\n", 1872 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO); 1873 1874 return sprintf(buf, "0x%x 0x%x 0x%x\n", 1875 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF); 1876 } 1877 static DEVICE_ATTR_RO(available_kbd_modes); 1878 1879 static ssize_t kbd_backlight_timeout_store(struct device *dev, 1880 struct device_attribute *attr, 1881 const char *buf, size_t count) 1882 { 1883 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1884 int time; 1885 int ret; 1886 1887 ret = kstrtoint(buf, 0, &time); 1888 if (ret) 1889 return ret; 1890 1891 /* Check for supported values depending on kbd_type */ 1892 if (toshiba->kbd_type == 1) { 1893 if (time < 0 || time > 60) 1894 return -EINVAL; 1895 } else if (toshiba->kbd_type == 2) { 1896 if (time < 1 || time > 60) 1897 return -EINVAL; 1898 } 1899 1900 /* Set the Keyboard Backlight Timeout */ 1901 1902 /* Only make a change if the actual timeout has changed */ 1903 if (toshiba->kbd_time != time) { 1904 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */ 1905 time = time << HCI_MISC_SHIFT; 1906 /* OR the "base time" to the actual method format */ 1907 if (toshiba->kbd_type == 1) 1908 time |= SCI_KBD_MODE_FNZ; 1909 else if (toshiba->kbd_type == 2) 1910 time |= SCI_KBD_MODE_AUTO; 1911 1912 ret = toshiba_kbd_illum_status_set(toshiba, time); 1913 if (ret) 1914 return ret; 1915 1916 toshiba->kbd_time = time >> HCI_MISC_SHIFT; 1917 } 1918 1919 return count; 1920 } 1921 1922 static ssize_t kbd_backlight_timeout_show(struct device *dev, 1923 struct device_attribute *attr, 1924 char *buf) 1925 { 1926 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1927 u32 time; 1928 1929 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0) 1930 return -EIO; 1931 1932 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT); 1933 } 1934 static DEVICE_ATTR_RW(kbd_backlight_timeout); 1935 1936 static ssize_t touchpad_store(struct device *dev, 1937 struct device_attribute *attr, 1938 const char *buf, size_t count) 1939 { 1940 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1941 int state; 1942 int ret; 1943 1944 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */ 1945 ret = kstrtoint(buf, 0, &state); 1946 if (ret) 1947 return ret; 1948 if (state != 0 && state != 1) 1949 return -EINVAL; 1950 1951 ret = toshiba_touchpad_set(toshiba, state); 1952 if (ret) 1953 return ret; 1954 1955 return count; 1956 } 1957 1958 static ssize_t touchpad_show(struct device *dev, 1959 struct device_attribute *attr, char *buf) 1960 { 1961 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1962 u32 state; 1963 int ret; 1964 1965 ret = toshiba_touchpad_get(toshiba, &state); 1966 if (ret < 0) 1967 return ret; 1968 1969 return sprintf(buf, "%i\n", state); 1970 } 1971 static DEVICE_ATTR_RW(touchpad); 1972 1973 static ssize_t usb_sleep_charge_show(struct device *dev, 1974 struct device_attribute *attr, char *buf) 1975 { 1976 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1977 u32 mode; 1978 int ret; 1979 1980 ret = toshiba_usb_sleep_charge_get(toshiba, &mode); 1981 if (ret < 0) 1982 return ret; 1983 1984 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK); 1985 } 1986 1987 static ssize_t usb_sleep_charge_store(struct device *dev, 1988 struct device_attribute *attr, 1989 const char *buf, size_t count) 1990 { 1991 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1992 int state; 1993 u32 mode; 1994 int ret; 1995 1996 ret = kstrtoint(buf, 0, &state); 1997 if (ret) 1998 return ret; 1999 /* 2000 * Check for supported values, where: 2001 * 0 - Disabled 2002 * 1 - Alternate (Non USB conformant devices that require more power) 2003 * 2 - Auto (USB conformant devices) 2004 * 3 - Typical 2005 */ 2006 if (state != 0 && state != 1 && state != 2 && state != 3) 2007 return -EINVAL; 2008 2009 /* Set the USB charging mode to internal value */ 2010 mode = toshiba->usbsc_mode_base; 2011 if (state == 0) 2012 mode |= SCI_USB_CHARGE_DISABLED; 2013 else if (state == 1) 2014 mode |= SCI_USB_CHARGE_ALTERNATE; 2015 else if (state == 2) 2016 mode |= SCI_USB_CHARGE_AUTO; 2017 else if (state == 3) 2018 mode |= SCI_USB_CHARGE_TYPICAL; 2019 2020 ret = toshiba_usb_sleep_charge_set(toshiba, mode); 2021 if (ret) 2022 return ret; 2023 2024 return count; 2025 } 2026 static DEVICE_ATTR_RW(usb_sleep_charge); 2027 2028 static ssize_t sleep_functions_on_battery_show(struct device *dev, 2029 struct device_attribute *attr, 2030 char *buf) 2031 { 2032 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2033 int bat_lvl, status; 2034 u32 state; 2035 int ret; 2036 int tmp; 2037 2038 ret = toshiba_sleep_functions_status_get(toshiba, &state); 2039 if (ret < 0) 2040 return ret; 2041 2042 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */ 2043 tmp = state & SCI_USB_CHARGE_BAT_MASK; 2044 status = (tmp == 0x4) ? 1 : 0; 2045 /* Determine the battery level set */ 2046 bat_lvl = state >> HCI_MISC_SHIFT; 2047 2048 return sprintf(buf, "%d %d\n", status, bat_lvl); 2049 } 2050 2051 static ssize_t sleep_functions_on_battery_store(struct device *dev, 2052 struct device_attribute *attr, 2053 const char *buf, size_t count) 2054 { 2055 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2056 u32 status; 2057 int value; 2058 int ret; 2059 int tmp; 2060 2061 ret = kstrtoint(buf, 0, &value); 2062 if (ret) 2063 return ret; 2064 2065 /* 2066 * Set the status of the function: 2067 * 0 - Disabled 2068 * 1-100 - Enabled 2069 */ 2070 if (value < 0 || value > 100) 2071 return -EINVAL; 2072 2073 if (value == 0) { 2074 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT; 2075 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF; 2076 } else { 2077 tmp = value << HCI_MISC_SHIFT; 2078 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON; 2079 } 2080 ret = toshiba_sleep_functions_status_set(toshiba, status); 2081 if (ret < 0) 2082 return ret; 2083 2084 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT; 2085 2086 return count; 2087 } 2088 static DEVICE_ATTR_RW(sleep_functions_on_battery); 2089 2090 static ssize_t usb_rapid_charge_show(struct device *dev, 2091 struct device_attribute *attr, char *buf) 2092 { 2093 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2094 u32 state; 2095 int ret; 2096 2097 ret = toshiba_usb_rapid_charge_get(toshiba, &state); 2098 if (ret < 0) 2099 return ret; 2100 2101 return sprintf(buf, "%d\n", state); 2102 } 2103 2104 static ssize_t usb_rapid_charge_store(struct device *dev, 2105 struct device_attribute *attr, 2106 const char *buf, size_t count) 2107 { 2108 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2109 int state; 2110 int ret; 2111 2112 ret = kstrtoint(buf, 0, &state); 2113 if (ret) 2114 return ret; 2115 if (state != 0 && state != 1) 2116 return -EINVAL; 2117 2118 ret = toshiba_usb_rapid_charge_set(toshiba, state); 2119 if (ret) 2120 return ret; 2121 2122 return count; 2123 } 2124 static DEVICE_ATTR_RW(usb_rapid_charge); 2125 2126 static ssize_t usb_sleep_music_show(struct device *dev, 2127 struct device_attribute *attr, char *buf) 2128 { 2129 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2130 u32 state; 2131 int ret; 2132 2133 ret = toshiba_usb_sleep_music_get(toshiba, &state); 2134 if (ret < 0) 2135 return ret; 2136 2137 return sprintf(buf, "%d\n", state); 2138 } 2139 2140 static ssize_t usb_sleep_music_store(struct device *dev, 2141 struct device_attribute *attr, 2142 const char *buf, size_t count) 2143 { 2144 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2145 int state; 2146 int ret; 2147 2148 ret = kstrtoint(buf, 0, &state); 2149 if (ret) 2150 return ret; 2151 if (state != 0 && state != 1) 2152 return -EINVAL; 2153 2154 ret = toshiba_usb_sleep_music_set(toshiba, state); 2155 if (ret) 2156 return ret; 2157 2158 return count; 2159 } 2160 static DEVICE_ATTR_RW(usb_sleep_music); 2161 2162 static ssize_t kbd_function_keys_show(struct device *dev, 2163 struct device_attribute *attr, char *buf) 2164 { 2165 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2166 int mode; 2167 int ret; 2168 2169 ret = toshiba_function_keys_get(toshiba, &mode); 2170 if (ret < 0) 2171 return ret; 2172 2173 return sprintf(buf, "%d\n", mode); 2174 } 2175 2176 static ssize_t kbd_function_keys_store(struct device *dev, 2177 struct device_attribute *attr, 2178 const char *buf, size_t count) 2179 { 2180 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2181 int mode; 2182 int ret; 2183 2184 ret = kstrtoint(buf, 0, &mode); 2185 if (ret) 2186 return ret; 2187 /* 2188 * Check for the function keys mode where: 2189 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12}) 2190 * 1 - Special functions (Opposite of the above setting) 2191 */ 2192 if (mode != 0 && mode != 1) 2193 return -EINVAL; 2194 2195 ret = toshiba_function_keys_set(toshiba, mode); 2196 if (ret) 2197 return ret; 2198 2199 pr_info("Reboot for changes to KBD Function Keys to take effect"); 2200 2201 return count; 2202 } 2203 static DEVICE_ATTR_RW(kbd_function_keys); 2204 2205 static ssize_t panel_power_on_show(struct device *dev, 2206 struct device_attribute *attr, char *buf) 2207 { 2208 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2209 u32 state; 2210 int ret; 2211 2212 ret = toshiba_panel_power_on_get(toshiba, &state); 2213 if (ret < 0) 2214 return ret; 2215 2216 return sprintf(buf, "%d\n", state); 2217 } 2218 2219 static ssize_t panel_power_on_store(struct device *dev, 2220 struct device_attribute *attr, 2221 const char *buf, size_t count) 2222 { 2223 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2224 int state; 2225 int ret; 2226 2227 ret = kstrtoint(buf, 0, &state); 2228 if (ret) 2229 return ret; 2230 if (state != 0 && state != 1) 2231 return -EINVAL; 2232 2233 ret = toshiba_panel_power_on_set(toshiba, state); 2234 if (ret) 2235 return ret; 2236 2237 pr_info("Reboot for changes to Panel Power ON to take effect"); 2238 2239 return count; 2240 } 2241 static DEVICE_ATTR_RW(panel_power_on); 2242 2243 static ssize_t usb_three_show(struct device *dev, 2244 struct device_attribute *attr, char *buf) 2245 { 2246 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2247 u32 state; 2248 int ret; 2249 2250 ret = toshiba_usb_three_get(toshiba, &state); 2251 if (ret < 0) 2252 return ret; 2253 2254 return sprintf(buf, "%d\n", state); 2255 } 2256 2257 static ssize_t usb_three_store(struct device *dev, 2258 struct device_attribute *attr, 2259 const char *buf, size_t count) 2260 { 2261 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2262 int state; 2263 int ret; 2264 2265 ret = kstrtoint(buf, 0, &state); 2266 if (ret) 2267 return ret; 2268 /* 2269 * Check for USB 3 mode where: 2270 * 0 - Disabled (Acts like a USB 2 port, saving power) 2271 * 1 - Enabled 2272 */ 2273 if (state != 0 && state != 1) 2274 return -EINVAL; 2275 2276 ret = toshiba_usb_three_set(toshiba, state); 2277 if (ret) 2278 return ret; 2279 2280 pr_info("Reboot for changes to USB 3 to take effect"); 2281 2282 return count; 2283 } 2284 static DEVICE_ATTR_RW(usb_three); 2285 2286 static ssize_t cooling_method_show(struct device *dev, 2287 struct device_attribute *attr, char *buf) 2288 { 2289 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2290 int state; 2291 int ret; 2292 2293 ret = toshiba_cooling_method_get(toshiba, &state); 2294 if (ret < 0) 2295 return ret; 2296 2297 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method); 2298 } 2299 2300 static ssize_t cooling_method_store(struct device *dev, 2301 struct device_attribute *attr, 2302 const char *buf, size_t count) 2303 { 2304 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2305 int state; 2306 int ret; 2307 2308 ret = kstrtoint(buf, 0, &state); 2309 if (ret) 2310 return ret; 2311 2312 /* 2313 * Check for supported values 2314 * Depending on the laptop model, some only support these two: 2315 * 0 - Maximum Performance 2316 * 1 - Battery Optimized 2317 * 2318 * While some others support all three methods: 2319 * 0 - Maximum Performance 2320 * 1 - Performance 2321 * 2 - Battery Optimized 2322 */ 2323 if (state < 0 || state > toshiba->max_cooling_method) 2324 return -EINVAL; 2325 2326 ret = toshiba_cooling_method_set(toshiba, state); 2327 if (ret) 2328 return ret; 2329 2330 return count; 2331 } 2332 static DEVICE_ATTR_RW(cooling_method); 2333 2334 static struct attribute *toshiba_attributes[] = { 2335 &dev_attr_version.attr, 2336 &dev_attr_fan.attr, 2337 &dev_attr_kbd_backlight_mode.attr, 2338 &dev_attr_kbd_type.attr, 2339 &dev_attr_available_kbd_modes.attr, 2340 &dev_attr_kbd_backlight_timeout.attr, 2341 &dev_attr_touchpad.attr, 2342 &dev_attr_usb_sleep_charge.attr, 2343 &dev_attr_sleep_functions_on_battery.attr, 2344 &dev_attr_usb_rapid_charge.attr, 2345 &dev_attr_usb_sleep_music.attr, 2346 &dev_attr_kbd_function_keys.attr, 2347 &dev_attr_panel_power_on.attr, 2348 &dev_attr_usb_three.attr, 2349 &dev_attr_cooling_method.attr, 2350 NULL, 2351 }; 2352 2353 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj, 2354 struct attribute *attr, int idx) 2355 { 2356 struct device *dev = container_of(kobj, struct device, kobj); 2357 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev); 2358 bool exists = true; 2359 2360 if (attr == &dev_attr_fan.attr) 2361 exists = (drv->fan_supported) ? true : false; 2362 else if (attr == &dev_attr_kbd_backlight_mode.attr) 2363 exists = (drv->kbd_illum_supported) ? true : false; 2364 else if (attr == &dev_attr_kbd_backlight_timeout.attr) 2365 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false; 2366 else if (attr == &dev_attr_touchpad.attr) 2367 exists = (drv->touchpad_supported) ? true : false; 2368 else if (attr == &dev_attr_usb_sleep_charge.attr) 2369 exists = (drv->usb_sleep_charge_supported) ? true : false; 2370 else if (attr == &dev_attr_sleep_functions_on_battery.attr) 2371 exists = (drv->usb_sleep_charge_supported) ? true : false; 2372 else if (attr == &dev_attr_usb_rapid_charge.attr) 2373 exists = (drv->usb_rapid_charge_supported) ? true : false; 2374 else if (attr == &dev_attr_usb_sleep_music.attr) 2375 exists = (drv->usb_sleep_music_supported) ? true : false; 2376 else if (attr == &dev_attr_kbd_function_keys.attr) 2377 exists = (drv->kbd_function_keys_supported) ? true : false; 2378 else if (attr == &dev_attr_panel_power_on.attr) 2379 exists = (drv->panel_power_on_supported) ? true : false; 2380 else if (attr == &dev_attr_usb_three.attr) 2381 exists = (drv->usb_three_supported) ? true : false; 2382 else if (attr == &dev_attr_cooling_method.attr) 2383 exists = (drv->cooling_method_supported) ? true : false; 2384 2385 return exists ? attr->mode : 0; 2386 } 2387 2388 static const struct attribute_group toshiba_attr_group = { 2389 .is_visible = toshiba_sysfs_is_visible, 2390 .attrs = toshiba_attributes, 2391 }; 2392 2393 static void toshiba_acpi_kbd_bl_work(struct work_struct *work) 2394 { 2395 /* Update the sysfs entries */ 2396 if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj, 2397 &toshiba_attr_group)) 2398 pr_err("Unable to update sysfs entries\n"); 2399 2400 /* Notify LED subsystem about keyboard backlight change */ 2401 if (toshiba_acpi->kbd_type == 2 && 2402 toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO) 2403 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led, 2404 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ? 2405 LED_FULL : LED_OFF); 2406 2407 /* Emulate the keyboard backlight event */ 2408 acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class, 2409 dev_name(&toshiba_acpi->acpi_dev->dev), 2410 0x92, 0); 2411 } 2412 2413 /* 2414 * IIO device 2415 */ 2416 2417 enum toshiba_iio_accel_chan { 2418 AXIS_X, 2419 AXIS_Y, 2420 AXIS_Z 2421 }; 2422 2423 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan) 2424 { 2425 u32 xyval, zval; 2426 int ret; 2427 2428 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval); 2429 if (ret < 0) 2430 return ret; 2431 2432 switch (chan) { 2433 case AXIS_X: 2434 return xyval & HCI_ACCEL_DIRECTION_MASK ? 2435 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK; 2436 case AXIS_Y: 2437 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ? 2438 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) : 2439 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK; 2440 case AXIS_Z: 2441 return zval & HCI_ACCEL_DIRECTION_MASK ? 2442 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK; 2443 } 2444 2445 return ret; 2446 } 2447 2448 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev, 2449 struct iio_chan_spec const *chan, 2450 int *val, int *val2, long mask) 2451 { 2452 int ret; 2453 2454 switch (mask) { 2455 case IIO_CHAN_INFO_RAW: 2456 ret = toshiba_iio_accel_get_axis(chan->channel); 2457 if (ret == -EIO || ret == -ENODEV) 2458 return ret; 2459 2460 *val = ret; 2461 2462 return IIO_VAL_INT; 2463 } 2464 2465 return -EINVAL; 2466 } 2467 2468 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \ 2469 .type = IIO_ACCEL, \ 2470 .modified = 1, \ 2471 .channel = chan, \ 2472 .channel2 = IIO_MOD_##axis, \ 2473 .output = 1, \ 2474 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ 2475 } 2476 2477 static const struct iio_chan_spec toshiba_iio_accel_channels[] = { 2478 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X), 2479 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y), 2480 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z), 2481 }; 2482 2483 static const struct iio_info toshiba_iio_accel_info = { 2484 .read_raw = &toshiba_iio_accel_read_raw, 2485 }; 2486 2487 /* 2488 * Misc device 2489 */ 2490 static int toshiba_acpi_smm_bridge(SMMRegisters *regs) 2491 { 2492 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx, 2493 regs->edx, regs->esi, regs->edi }; 2494 u32 out[TCI_WORDS]; 2495 acpi_status status; 2496 2497 status = tci_raw(toshiba_acpi, in, out); 2498 if (ACPI_FAILURE(status)) { 2499 pr_err("ACPI call to query SMM registers failed\n"); 2500 return -EIO; 2501 } 2502 2503 /* Fillout the SMM struct with the TCI call results */ 2504 regs->eax = out[0]; 2505 regs->ebx = out[1]; 2506 regs->ecx = out[2]; 2507 regs->edx = out[3]; 2508 regs->esi = out[4]; 2509 regs->edi = out[5]; 2510 2511 return 0; 2512 } 2513 2514 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd, 2515 unsigned long arg) 2516 { 2517 SMMRegisters __user *argp = (SMMRegisters __user *)arg; 2518 SMMRegisters regs; 2519 int ret; 2520 2521 if (!argp) 2522 return -EINVAL; 2523 2524 switch (cmd) { 2525 case TOSH_SMM: 2526 if (copy_from_user(®s, argp, sizeof(SMMRegisters))) 2527 return -EFAULT; 2528 ret = toshiba_acpi_smm_bridge(®s); 2529 if (ret) 2530 return ret; 2531 if (copy_to_user(argp, ®s, sizeof(SMMRegisters))) 2532 return -EFAULT; 2533 break; 2534 case TOSHIBA_ACPI_SCI: 2535 if (copy_from_user(®s, argp, sizeof(SMMRegisters))) 2536 return -EFAULT; 2537 /* Ensure we are being called with a SCI_{GET, SET} register */ 2538 if (regs.eax != SCI_GET && regs.eax != SCI_SET) 2539 return -EINVAL; 2540 if (!sci_open(toshiba_acpi)) 2541 return -EIO; 2542 ret = toshiba_acpi_smm_bridge(®s); 2543 sci_close(toshiba_acpi); 2544 if (ret) 2545 return ret; 2546 if (copy_to_user(argp, ®s, sizeof(SMMRegisters))) 2547 return -EFAULT; 2548 break; 2549 default: 2550 return -EINVAL; 2551 } 2552 2553 return 0; 2554 } 2555 2556 static const struct file_operations toshiba_acpi_fops = { 2557 .owner = THIS_MODULE, 2558 .unlocked_ioctl = toshiba_acpi_ioctl, 2559 .llseek = noop_llseek, 2560 }; 2561 2562 /* 2563 * WWAN RFKill handlers 2564 */ 2565 static int toshiba_acpi_wwan_set_block(void *data, bool blocked) 2566 { 2567 struct toshiba_acpi_dev *dev = data; 2568 int ret; 2569 2570 ret = toshiba_wireless_status(dev); 2571 if (ret) 2572 return ret; 2573 2574 if (!dev->killswitch) 2575 return 0; 2576 2577 return toshiba_wwan_set(dev, !blocked); 2578 } 2579 2580 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data) 2581 { 2582 struct toshiba_acpi_dev *dev = data; 2583 2584 if (toshiba_wireless_status(dev)) 2585 return; 2586 2587 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); 2588 } 2589 2590 static const struct rfkill_ops wwan_rfk_ops = { 2591 .set_block = toshiba_acpi_wwan_set_block, 2592 .poll = toshiba_acpi_wwan_poll, 2593 }; 2594 2595 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev) 2596 { 2597 int ret = toshiba_wireless_status(dev); 2598 2599 if (ret) 2600 return ret; 2601 2602 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN", 2603 &dev->acpi_dev->dev, 2604 RFKILL_TYPE_WWAN, 2605 &wwan_rfk_ops, 2606 dev); 2607 if (!dev->wwan_rfk) { 2608 pr_err("Unable to allocate WWAN rfkill device\n"); 2609 return -ENOMEM; 2610 } 2611 2612 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); 2613 2614 ret = rfkill_register(dev->wwan_rfk); 2615 if (ret) { 2616 pr_err("Unable to register WWAN rfkill device\n"); 2617 rfkill_destroy(dev->wwan_rfk); 2618 } 2619 2620 return ret; 2621 } 2622 2623 /* 2624 * Hotkeys 2625 */ 2626 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev) 2627 { 2628 acpi_status status; 2629 u32 result; 2630 2631 status = acpi_evaluate_object(dev->acpi_dev->handle, 2632 "ENAB", NULL, NULL); 2633 if (ACPI_FAILURE(status)) 2634 return -ENODEV; 2635 2636 /* 2637 * Enable the "Special Functions" mode only if they are 2638 * supported and if they are activated. 2639 */ 2640 if (dev->kbd_function_keys_supported && dev->special_functions) 2641 result = hci_write(dev, HCI_HOTKEY_EVENT, 2642 HCI_HOTKEY_SPECIAL_FUNCTIONS); 2643 else 2644 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE); 2645 2646 if (result == TOS_FAILURE) 2647 return -EIO; 2648 else if (result == TOS_NOT_SUPPORTED) 2649 return -ENODEV; 2650 2651 return 0; 2652 } 2653 2654 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str, 2655 struct serio *port) 2656 { 2657 if (str & I8042_STR_AUXDATA) 2658 return false; 2659 2660 if (unlikely(data == 0xe0)) 2661 return false; 2662 2663 if ((data & 0x7f) == TOS1900_FN_SCAN) { 2664 schedule_work(&toshiba_acpi->hotkey_work); 2665 return true; 2666 } 2667 2668 return false; 2669 } 2670 2671 static void toshiba_acpi_hotkey_work(struct work_struct *work) 2672 { 2673 acpi_handle ec_handle = ec_get_handle(); 2674 acpi_status status; 2675 2676 if (!ec_handle) 2677 return; 2678 2679 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL); 2680 if (ACPI_FAILURE(status)) 2681 pr_err("ACPI NTFY method execution failed\n"); 2682 } 2683 2684 /* 2685 * Returns hotkey scancode, or < 0 on failure. 2686 */ 2687 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev) 2688 { 2689 unsigned long long value; 2690 acpi_status status; 2691 2692 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO", 2693 NULL, &value); 2694 if (ACPI_FAILURE(status)) { 2695 pr_err("ACPI INFO method execution failed\n"); 2696 return -EIO; 2697 } 2698 2699 return value; 2700 } 2701 2702 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev, 2703 int scancode) 2704 { 2705 if (scancode == 0x100) 2706 return; 2707 2708 /* Act on key press; ignore key release */ 2709 if (scancode & 0x80) 2710 return; 2711 2712 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true)) 2713 pr_info("Unknown key %x\n", scancode); 2714 } 2715 2716 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev) 2717 { 2718 if (dev->info_supported) { 2719 int scancode = toshiba_acpi_query_hotkey(dev); 2720 2721 if (scancode < 0) { 2722 pr_err("Failed to query hotkey event\n"); 2723 } else if (scancode != 0) { 2724 toshiba_acpi_report_hotkey(dev, scancode); 2725 dev->key_event_valid = 1; 2726 dev->last_key_event = scancode; 2727 } 2728 } else if (dev->system_event_supported) { 2729 u32 result; 2730 u32 value; 2731 int retries = 3; 2732 2733 do { 2734 result = hci_read(dev, HCI_SYSTEM_EVENT, &value); 2735 switch (result) { 2736 case TOS_SUCCESS: 2737 toshiba_acpi_report_hotkey(dev, (int)value); 2738 dev->key_event_valid = 1; 2739 dev->last_key_event = value; 2740 break; 2741 case TOS_NOT_SUPPORTED: 2742 /* 2743 * This is a workaround for an unresolved 2744 * issue on some machines where system events 2745 * sporadically become disabled. 2746 */ 2747 result = hci_write(dev, HCI_SYSTEM_EVENT, 1); 2748 if (result == TOS_SUCCESS) 2749 pr_notice("Re-enabled hotkeys\n"); 2750 fallthrough; 2751 default: 2752 retries--; 2753 break; 2754 } 2755 } while (retries && result != TOS_FIFO_EMPTY); 2756 } 2757 } 2758 2759 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev) 2760 { 2761 const struct key_entry *keymap = toshiba_acpi_keymap; 2762 acpi_handle ec_handle; 2763 int error; 2764 2765 if (disable_hotkeys) { 2766 pr_info("Hotkeys disabled by module parameter\n"); 2767 return 0; 2768 } 2769 2770 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) { 2771 pr_info("WMI event detected, hotkeys will not be monitored\n"); 2772 return 0; 2773 } 2774 2775 error = toshiba_acpi_enable_hotkeys(dev); 2776 if (error) 2777 return error; 2778 2779 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type)) 2780 pr_notice("Unable to query Hotkey Event Type\n"); 2781 2782 dev->hotkey_dev = input_allocate_device(); 2783 if (!dev->hotkey_dev) 2784 return -ENOMEM; 2785 2786 dev->hotkey_dev->name = "Toshiba input device"; 2787 dev->hotkey_dev->phys = "toshiba_acpi/input0"; 2788 dev->hotkey_dev->id.bustype = BUS_HOST; 2789 2790 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 || 2791 !dev->kbd_function_keys_supported) 2792 keymap = toshiba_acpi_keymap; 2793 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 || 2794 dev->kbd_function_keys_supported) 2795 keymap = toshiba_acpi_alt_keymap; 2796 else 2797 pr_info("Unknown event type received %x\n", 2798 dev->hotkey_event_type); 2799 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL); 2800 if (error) 2801 goto err_free_dev; 2802 2803 /* 2804 * For some machines the SCI responsible for providing hotkey 2805 * notification doesn't fire. We can trigger the notification 2806 * whenever the Fn key is pressed using the NTFY method, if 2807 * supported, so if it's present set up an i8042 key filter 2808 * for this purpose. 2809 */ 2810 ec_handle = ec_get_handle(); 2811 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) { 2812 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work); 2813 2814 error = i8042_install_filter(toshiba_acpi_i8042_filter); 2815 if (error) { 2816 pr_err("Error installing key filter\n"); 2817 goto err_free_dev; 2818 } 2819 2820 dev->ntfy_supported = 1; 2821 } 2822 2823 /* 2824 * Determine hotkey query interface. Prefer using the INFO 2825 * method when it is available. 2826 */ 2827 if (acpi_has_method(dev->acpi_dev->handle, "INFO")) 2828 dev->info_supported = 1; 2829 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS) 2830 dev->system_event_supported = 1; 2831 2832 if (!dev->info_supported && !dev->system_event_supported) { 2833 pr_warn("No hotkey query interface found\n"); 2834 error = -EINVAL; 2835 goto err_remove_filter; 2836 } 2837 2838 error = input_register_device(dev->hotkey_dev); 2839 if (error) { 2840 pr_info("Unable to register input device\n"); 2841 goto err_remove_filter; 2842 } 2843 2844 return 0; 2845 2846 err_remove_filter: 2847 if (dev->ntfy_supported) 2848 i8042_remove_filter(toshiba_acpi_i8042_filter); 2849 err_free_dev: 2850 input_free_device(dev->hotkey_dev); 2851 dev->hotkey_dev = NULL; 2852 return error; 2853 } 2854 2855 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev) 2856 { 2857 struct backlight_properties props; 2858 int brightness; 2859 int ret; 2860 2861 /* 2862 * Some machines don't support the backlight methods at all, and 2863 * others support it read-only. Either of these is pretty useless, 2864 * so only register the backlight device if the backlight method 2865 * supports both reads and writes. 2866 */ 2867 brightness = __get_lcd_brightness(dev); 2868 if (brightness < 0) 2869 return 0; 2870 /* 2871 * If transflective backlight is supported and the brightness is zero 2872 * (lowest brightness level), the set_lcd_brightness function will 2873 * activate the transflective backlight, making the LCD appear to be 2874 * turned off, simply increment the brightness level to avoid that. 2875 */ 2876 if (dev->tr_backlight_supported && brightness == 0) 2877 brightness++; 2878 ret = set_lcd_brightness(dev, brightness); 2879 if (ret) { 2880 pr_debug("Backlight method is read-only, disabling backlight support\n"); 2881 return 0; 2882 } 2883 2884 /* 2885 * Tell acpi-video-detect code to prefer vendor backlight on all 2886 * systems with transflective backlight and on dmi matched systems. 2887 */ 2888 if (dev->tr_backlight_supported || 2889 dmi_check_system(toshiba_vendor_backlight_dmi)) 2890 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor); 2891 2892 if (acpi_video_get_backlight_type() != acpi_backlight_vendor) 2893 return 0; 2894 2895 memset(&props, 0, sizeof(props)); 2896 props.type = BACKLIGHT_PLATFORM; 2897 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1; 2898 2899 /* Adding an extra level and having 0 change to transflective mode */ 2900 if (dev->tr_backlight_supported) 2901 props.max_brightness++; 2902 2903 dev->backlight_dev = backlight_device_register("toshiba", 2904 &dev->acpi_dev->dev, 2905 dev, 2906 &toshiba_backlight_data, 2907 &props); 2908 if (IS_ERR(dev->backlight_dev)) { 2909 ret = PTR_ERR(dev->backlight_dev); 2910 pr_err("Could not register toshiba backlight device\n"); 2911 dev->backlight_dev = NULL; 2912 return ret; 2913 } 2914 2915 dev->backlight_dev->props.brightness = brightness; 2916 return 0; 2917 } 2918 2919 static void print_supported_features(struct toshiba_acpi_dev *dev) 2920 { 2921 pr_info("Supported laptop features:"); 2922 2923 if (dev->hotkey_dev) 2924 pr_cont(" hotkeys"); 2925 if (dev->backlight_dev) 2926 pr_cont(" backlight"); 2927 if (dev->video_supported) 2928 pr_cont(" video-out"); 2929 if (dev->fan_supported) 2930 pr_cont(" fan"); 2931 if (dev->tr_backlight_supported) 2932 pr_cont(" transflective-backlight"); 2933 if (dev->illumination_supported) 2934 pr_cont(" illumination"); 2935 if (dev->kbd_illum_supported) 2936 pr_cont(" keyboard-backlight"); 2937 if (dev->touchpad_supported) 2938 pr_cont(" touchpad"); 2939 if (dev->eco_supported) 2940 pr_cont(" eco-led"); 2941 if (dev->accelerometer_supported) 2942 pr_cont(" accelerometer-axes"); 2943 if (dev->usb_sleep_charge_supported) 2944 pr_cont(" usb-sleep-charge"); 2945 if (dev->usb_rapid_charge_supported) 2946 pr_cont(" usb-rapid-charge"); 2947 if (dev->usb_sleep_music_supported) 2948 pr_cont(" usb-sleep-music"); 2949 if (dev->kbd_function_keys_supported) 2950 pr_cont(" special-function-keys"); 2951 if (dev->panel_power_on_supported) 2952 pr_cont(" panel-power-on"); 2953 if (dev->usb_three_supported) 2954 pr_cont(" usb3"); 2955 if (dev->wwan_supported) 2956 pr_cont(" wwan"); 2957 if (dev->cooling_method_supported) 2958 pr_cont(" cooling-method"); 2959 2960 pr_cont("\n"); 2961 } 2962 2963 static int toshiba_acpi_remove(struct acpi_device *acpi_dev) 2964 { 2965 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev); 2966 2967 misc_deregister(&dev->miscdev); 2968 2969 remove_toshiba_proc_entries(dev); 2970 2971 if (dev->accelerometer_supported && dev->indio_dev) { 2972 iio_device_unregister(dev->indio_dev); 2973 iio_device_free(dev->indio_dev); 2974 } 2975 2976 if (dev->sysfs_created) 2977 sysfs_remove_group(&dev->acpi_dev->dev.kobj, 2978 &toshiba_attr_group); 2979 2980 if (dev->ntfy_supported) { 2981 i8042_remove_filter(toshiba_acpi_i8042_filter); 2982 cancel_work_sync(&dev->hotkey_work); 2983 } 2984 2985 if (dev->hotkey_dev) 2986 input_unregister_device(dev->hotkey_dev); 2987 2988 backlight_device_unregister(dev->backlight_dev); 2989 2990 led_classdev_unregister(&dev->led_dev); 2991 led_classdev_unregister(&dev->kbd_led); 2992 led_classdev_unregister(&dev->eco_led); 2993 2994 if (dev->wwan_rfk) { 2995 rfkill_unregister(dev->wwan_rfk); 2996 rfkill_destroy(dev->wwan_rfk); 2997 } 2998 2999 if (toshiba_acpi) 3000 toshiba_acpi = NULL; 3001 3002 kfree(dev); 3003 3004 return 0; 3005 } 3006 3007 static const char *find_hci_method(acpi_handle handle) 3008 { 3009 if (acpi_has_method(handle, "GHCI")) 3010 return "GHCI"; 3011 3012 if (acpi_has_method(handle, "SPFC")) 3013 return "SPFC"; 3014 3015 return NULL; 3016 } 3017 3018 static int toshiba_acpi_add(struct acpi_device *acpi_dev) 3019 { 3020 struct toshiba_acpi_dev *dev; 3021 const char *hci_method; 3022 u32 dummy; 3023 int ret = 0; 3024 3025 if (toshiba_acpi) 3026 return -EBUSY; 3027 3028 pr_info("Toshiba Laptop ACPI Extras version %s\n", 3029 TOSHIBA_ACPI_VERSION); 3030 3031 hci_method = find_hci_method(acpi_dev->handle); 3032 if (!hci_method) { 3033 pr_err("HCI interface not found\n"); 3034 return -ENODEV; 3035 } 3036 3037 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 3038 if (!dev) 3039 return -ENOMEM; 3040 dev->acpi_dev = acpi_dev; 3041 dev->method_hci = hci_method; 3042 dev->miscdev.minor = MISC_DYNAMIC_MINOR; 3043 dev->miscdev.name = "toshiba_acpi"; 3044 dev->miscdev.fops = &toshiba_acpi_fops; 3045 3046 ret = misc_register(&dev->miscdev); 3047 if (ret) { 3048 pr_err("Failed to register miscdevice\n"); 3049 kfree(dev); 3050 return ret; 3051 } 3052 3053 acpi_dev->driver_data = dev; 3054 dev_set_drvdata(&acpi_dev->dev, dev); 3055 3056 /* Query the BIOS for supported features */ 3057 3058 /* 3059 * The "Special Functions" are always supported by the laptops 3060 * with the new keyboard layout, query for its presence to help 3061 * determine the keymap layout to use. 3062 */ 3063 ret = toshiba_function_keys_get(dev, &dev->special_functions); 3064 dev->kbd_function_keys_supported = !ret; 3065 3066 dev->hotkey_event_type = 0; 3067 if (toshiba_acpi_setup_keyboard(dev)) 3068 pr_info("Unable to activate hotkeys\n"); 3069 3070 /* Determine whether or not BIOS supports transflective backlight */ 3071 ret = get_tr_backlight_status(dev, &dummy); 3072 dev->tr_backlight_supported = !ret; 3073 3074 ret = toshiba_acpi_setup_backlight(dev); 3075 if (ret) 3076 goto error; 3077 3078 toshiba_illumination_available(dev); 3079 if (dev->illumination_supported) { 3080 dev->led_dev.name = "toshiba::illumination"; 3081 dev->led_dev.max_brightness = 1; 3082 dev->led_dev.brightness_set = toshiba_illumination_set; 3083 dev->led_dev.brightness_get = toshiba_illumination_get; 3084 led_classdev_register(&acpi_dev->dev, &dev->led_dev); 3085 } 3086 3087 toshiba_eco_mode_available(dev); 3088 if (dev->eco_supported) { 3089 dev->eco_led.name = "toshiba::eco_mode"; 3090 dev->eco_led.max_brightness = 1; 3091 dev->eco_led.brightness_set = toshiba_eco_mode_set_status; 3092 dev->eco_led.brightness_get = toshiba_eco_mode_get_status; 3093 led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led); 3094 } 3095 3096 toshiba_kbd_illum_available(dev); 3097 /* 3098 * Only register the LED if KBD illumination is supported 3099 * and the keyboard backlight operation mode is set to FN-Z 3100 * or we detect a second gen keyboard backlight 3101 */ 3102 if (dev->kbd_illum_supported && 3103 (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) { 3104 dev->kbd_led.name = "toshiba::kbd_backlight"; 3105 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED; 3106 dev->kbd_led.max_brightness = 1; 3107 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set; 3108 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get; 3109 led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led); 3110 } 3111 3112 ret = toshiba_touchpad_get(dev, &dummy); 3113 dev->touchpad_supported = !ret; 3114 3115 toshiba_accelerometer_available(dev); 3116 if (dev->accelerometer_supported) { 3117 dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev)); 3118 if (!dev->indio_dev) { 3119 pr_err("Unable to allocate iio device\n"); 3120 goto iio_error; 3121 } 3122 3123 pr_info("Registering Toshiba accelerometer iio device\n"); 3124 3125 dev->indio_dev->info = &toshiba_iio_accel_info; 3126 dev->indio_dev->name = "Toshiba accelerometer"; 3127 dev->indio_dev->modes = INDIO_DIRECT_MODE; 3128 dev->indio_dev->channels = toshiba_iio_accel_channels; 3129 dev->indio_dev->num_channels = 3130 ARRAY_SIZE(toshiba_iio_accel_channels); 3131 3132 ret = iio_device_register(dev->indio_dev); 3133 if (ret < 0) { 3134 pr_err("Unable to register iio device\n"); 3135 iio_device_free(dev->indio_dev); 3136 } 3137 } 3138 iio_error: 3139 3140 toshiba_usb_sleep_charge_available(dev); 3141 3142 ret = toshiba_usb_rapid_charge_get(dev, &dummy); 3143 dev->usb_rapid_charge_supported = !ret; 3144 3145 ret = toshiba_usb_sleep_music_get(dev, &dummy); 3146 dev->usb_sleep_music_supported = !ret; 3147 3148 ret = toshiba_panel_power_on_get(dev, &dummy); 3149 dev->panel_power_on_supported = !ret; 3150 3151 ret = toshiba_usb_three_get(dev, &dummy); 3152 dev->usb_three_supported = !ret; 3153 3154 ret = get_video_status(dev, &dummy); 3155 dev->video_supported = !ret; 3156 3157 ret = get_fan_status(dev, &dummy); 3158 dev->fan_supported = !ret; 3159 3160 toshiba_wwan_available(dev); 3161 if (dev->wwan_supported) 3162 toshiba_acpi_setup_wwan_rfkill(dev); 3163 3164 toshiba_cooling_method_available(dev); 3165 3166 print_supported_features(dev); 3167 3168 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj, 3169 &toshiba_attr_group); 3170 if (ret) { 3171 dev->sysfs_created = 0; 3172 goto error; 3173 } 3174 dev->sysfs_created = !ret; 3175 3176 create_toshiba_proc_entries(dev); 3177 3178 toshiba_acpi = dev; 3179 3180 return 0; 3181 3182 error: 3183 toshiba_acpi_remove(acpi_dev); 3184 return ret; 3185 } 3186 3187 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event) 3188 { 3189 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev); 3190 3191 switch (event) { 3192 case 0x80: /* Hotkeys and some system events */ 3193 /* 3194 * Machines with this WMI GUID aren't supported due to bugs in 3195 * their AML. 3196 * 3197 * Return silently to avoid triggering a netlink event. 3198 */ 3199 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) 3200 return; 3201 toshiba_acpi_process_hotkeys(dev); 3202 break; 3203 case 0x81: /* Dock events */ 3204 case 0x82: 3205 case 0x83: 3206 pr_info("Dock event received %x\n", event); 3207 break; 3208 case 0x88: /* Thermal events */ 3209 pr_info("Thermal event received\n"); 3210 break; 3211 case 0x8f: /* LID closed */ 3212 case 0x90: /* LID is closed and Dock has been ejected */ 3213 break; 3214 case 0x8c: /* SATA power events */ 3215 case 0x8b: 3216 pr_info("SATA power event received %x\n", event); 3217 break; 3218 case 0x92: /* Keyboard backlight mode changed */ 3219 dev->kbd_event_generated = true; 3220 /* Update sysfs entries */ 3221 if (sysfs_update_group(&acpi_dev->dev.kobj, 3222 &toshiba_attr_group)) 3223 pr_err("Unable to update sysfs entries\n"); 3224 /* Notify LED subsystem about keyboard backlight change */ 3225 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO) 3226 led_classdev_notify_brightness_hw_changed(&dev->kbd_led, 3227 (dev->kbd_mode == SCI_KBD_MODE_ON) ? 3228 LED_FULL : LED_OFF); 3229 break; 3230 case 0x85: /* Unknown */ 3231 case 0x8d: /* Unknown */ 3232 case 0x8e: /* Unknown */ 3233 case 0x94: /* Unknown */ 3234 case 0x95: /* Unknown */ 3235 default: 3236 pr_info("Unknown event received %x\n", event); 3237 break; 3238 } 3239 3240 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class, 3241 dev_name(&acpi_dev->dev), 3242 event, (event == 0x80) ? 3243 dev->last_key_event : 0); 3244 } 3245 3246 #ifdef CONFIG_PM_SLEEP 3247 static int toshiba_acpi_suspend(struct device *device) 3248 { 3249 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device)); 3250 3251 if (dev->hotkey_dev) { 3252 u32 result; 3253 3254 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE); 3255 if (result != TOS_SUCCESS) 3256 pr_info("Unable to disable hotkeys\n"); 3257 } 3258 3259 return 0; 3260 } 3261 3262 static int toshiba_acpi_resume(struct device *device) 3263 { 3264 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device)); 3265 3266 if (dev->hotkey_dev) { 3267 if (toshiba_acpi_enable_hotkeys(dev)) 3268 pr_info("Unable to re-enable hotkeys\n"); 3269 } 3270 3271 if (dev->wwan_rfk) { 3272 if (!toshiba_wireless_status(dev)) 3273 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); 3274 } 3275 3276 return 0; 3277 } 3278 #endif 3279 3280 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm, 3281 toshiba_acpi_suspend, toshiba_acpi_resume); 3282 3283 static struct acpi_driver toshiba_acpi_driver = { 3284 .name = "Toshiba ACPI driver", 3285 .owner = THIS_MODULE, 3286 .ids = toshiba_device_ids, 3287 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, 3288 .ops = { 3289 .add = toshiba_acpi_add, 3290 .remove = toshiba_acpi_remove, 3291 .notify = toshiba_acpi_notify, 3292 }, 3293 .drv.pm = &toshiba_acpi_pm, 3294 }; 3295 3296 static int __init toshiba_acpi_init(void) 3297 { 3298 int ret; 3299 3300 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir); 3301 if (!toshiba_proc_dir) { 3302 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n"); 3303 return -ENODEV; 3304 } 3305 3306 ret = acpi_bus_register_driver(&toshiba_acpi_driver); 3307 if (ret) { 3308 pr_err("Failed to register ACPI driver: %d\n", ret); 3309 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); 3310 } 3311 3312 return ret; 3313 } 3314 3315 static void __exit toshiba_acpi_exit(void) 3316 { 3317 acpi_bus_unregister_driver(&toshiba_acpi_driver); 3318 if (toshiba_proc_dir) 3319 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); 3320 } 3321 3322 module_init(toshiba_acpi_init); 3323 module_exit(toshiba_acpi_exit); 3324