1 /* 2 * toshiba_acpi.c - Toshiba Laptop ACPI Extras 3 * 4 * Copyright (C) 2002-2004 John Belmonte 5 * Copyright (C) 2008 Philip Langdale 6 * Copyright (C) 2010 Pierre Ducroquet 7 * Copyright (C) 2014-2015 Azael Avalos 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * The full GNU General Public License is included in this distribution in 20 * the file called "COPYING". 21 * 22 * The devolpment page for this driver is located at 23 * http://memebeam.org/toys/ToshibaAcpiDriver. 24 * 25 * Credits: 26 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse 27 * engineering the Windows drivers 28 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5 29 * Rob Miller - TV out and hotkeys help 30 */ 31 32 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 33 34 #define TOSHIBA_ACPI_VERSION "0.23" 35 #define PROC_INTERFACE_VERSION 1 36 37 #include <linux/kernel.h> 38 #include <linux/module.h> 39 #include <linux/moduleparam.h> 40 #include <linux/init.h> 41 #include <linux/types.h> 42 #include <linux/proc_fs.h> 43 #include <linux/seq_file.h> 44 #include <linux/backlight.h> 45 #include <linux/input.h> 46 #include <linux/input/sparse-keymap.h> 47 #include <linux/leds.h> 48 #include <linux/slab.h> 49 #include <linux/workqueue.h> 50 #include <linux/i8042.h> 51 #include <linux/acpi.h> 52 #include <linux/dmi.h> 53 #include <linux/uaccess.h> 54 #include <linux/miscdevice.h> 55 #include <linux/rfkill.h> 56 #include <linux/toshiba.h> 57 #include <acpi/video.h> 58 59 MODULE_AUTHOR("John Belmonte"); 60 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver"); 61 MODULE_LICENSE("GPL"); 62 63 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100" 64 65 /* Scan code for Fn key on TOS1900 models */ 66 #define TOS1900_FN_SCAN 0x6e 67 68 /* Toshiba ACPI method paths */ 69 #define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX" 70 71 /* 72 * The Toshiba configuration interface is composed of the HCI and the SCI, 73 * which are defined as follows: 74 * 75 * HCI is Toshiba's "Hardware Control Interface" which is supposed to 76 * be uniform across all their models. Ideally we would just call 77 * dedicated ACPI methods instead of using this primitive interface. 78 * However the ACPI methods seem to be incomplete in some areas (for 79 * example they allow setting, but not reading, the LCD brightness value), 80 * so this is still useful. 81 * 82 * SCI stands for "System Configuration Interface" which aim is to 83 * conceal differences in hardware between different models. 84 */ 85 86 #define TCI_WORDS 6 87 88 /* Operations */ 89 #define HCI_SET 0xff00 90 #define HCI_GET 0xfe00 91 #define SCI_OPEN 0xf100 92 #define SCI_CLOSE 0xf200 93 #define SCI_GET 0xf300 94 #define SCI_SET 0xf400 95 96 /* Return codes */ 97 #define TOS_SUCCESS 0x0000 98 #define TOS_SUCCESS2 0x0001 99 #define TOS_OPEN_CLOSE_OK 0x0044 100 #define TOS_FAILURE 0x1000 101 #define TOS_NOT_SUPPORTED 0x8000 102 #define TOS_ALREADY_OPEN 0x8100 103 #define TOS_NOT_OPENED 0x8200 104 #define TOS_INPUT_DATA_ERROR 0x8300 105 #define TOS_WRITE_PROTECTED 0x8400 106 #define TOS_NOT_PRESENT 0x8600 107 #define TOS_FIFO_EMPTY 0x8c00 108 #define TOS_DATA_NOT_AVAILABLE 0x8d20 109 #define TOS_NOT_INITIALIZED 0x8d50 110 #define TOS_NOT_INSTALLED 0x8e00 111 112 /* Registers */ 113 #define HCI_FAN 0x0004 114 #define HCI_TR_BACKLIGHT 0x0005 115 #define HCI_SYSTEM_EVENT 0x0016 116 #define HCI_VIDEO_OUT 0x001c 117 #define HCI_HOTKEY_EVENT 0x001e 118 #define HCI_LCD_BRIGHTNESS 0x002a 119 #define HCI_WIRELESS 0x0056 120 #define HCI_ACCELEROMETER 0x006d 121 #define HCI_COOLING_METHOD 0x007f 122 #define HCI_KBD_ILLUMINATION 0x0095 123 #define HCI_ECO_MODE 0x0097 124 #define HCI_ACCELEROMETER2 0x00a6 125 #define HCI_SYSTEM_INFO 0xc000 126 #define SCI_PANEL_POWER_ON 0x010d 127 #define SCI_ILLUMINATION 0x014e 128 #define SCI_USB_SLEEP_CHARGE 0x0150 129 #define SCI_KBD_ILLUM_STATUS 0x015c 130 #define SCI_USB_SLEEP_MUSIC 0x015e 131 #define SCI_USB_THREE 0x0169 132 #define SCI_TOUCHPAD 0x050e 133 #define SCI_KBD_FUNCTION_KEYS 0x0522 134 135 /* Field definitions */ 136 #define HCI_ACCEL_MASK 0x7fff 137 #define HCI_HOTKEY_DISABLE 0x0b 138 #define HCI_HOTKEY_ENABLE 0x09 139 #define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10 140 #define HCI_LCD_BRIGHTNESS_BITS 3 141 #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS) 142 #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS) 143 #define HCI_MISC_SHIFT 0x10 144 #define HCI_SYSTEM_TYPE1 0x10 145 #define HCI_SYSTEM_TYPE2 0x11 146 #define HCI_VIDEO_OUT_LCD 0x1 147 #define HCI_VIDEO_OUT_CRT 0x2 148 #define HCI_VIDEO_OUT_TV 0x4 149 #define SCI_KBD_MODE_MASK 0x1f 150 #define SCI_KBD_MODE_FNZ 0x1 151 #define SCI_KBD_MODE_AUTO 0x2 152 #define SCI_KBD_MODE_ON 0x8 153 #define SCI_KBD_MODE_OFF 0x10 154 #define SCI_KBD_TIME_MAX 0x3c001a 155 #define HCI_WIRELESS_STATUS 0x1 156 #define HCI_WIRELESS_WWAN 0x3 157 #define HCI_WIRELESS_WWAN_STATUS 0x2000 158 #define HCI_WIRELESS_WWAN_POWER 0x4000 159 #define SCI_USB_CHARGE_MODE_MASK 0xff 160 #define SCI_USB_CHARGE_DISABLED 0x00 161 #define SCI_USB_CHARGE_ALTERNATE 0x09 162 #define SCI_USB_CHARGE_TYPICAL 0x11 163 #define SCI_USB_CHARGE_AUTO 0x21 164 #define SCI_USB_CHARGE_BAT_MASK 0x7 165 #define SCI_USB_CHARGE_BAT_LVL_OFF 0x1 166 #define SCI_USB_CHARGE_BAT_LVL_ON 0x4 167 #define SCI_USB_CHARGE_BAT_LVL 0x0200 168 #define SCI_USB_CHARGE_RAPID_DSP 0x0300 169 170 struct toshiba_acpi_dev { 171 struct acpi_device *acpi_dev; 172 const char *method_hci; 173 struct input_dev *hotkey_dev; 174 struct work_struct hotkey_work; 175 struct backlight_device *backlight_dev; 176 struct led_classdev led_dev; 177 struct led_classdev kbd_led; 178 struct led_classdev eco_led; 179 struct miscdevice miscdev; 180 struct rfkill *wwan_rfk; 181 182 int force_fan; 183 int last_key_event; 184 int key_event_valid; 185 int kbd_type; 186 int kbd_mode; 187 int kbd_time; 188 int usbsc_bat_level; 189 int usbsc_mode_base; 190 int hotkey_event_type; 191 int max_cooling_method; 192 193 unsigned int illumination_supported:1; 194 unsigned int video_supported:1; 195 unsigned int fan_supported:1; 196 unsigned int system_event_supported:1; 197 unsigned int ntfy_supported:1; 198 unsigned int info_supported:1; 199 unsigned int tr_backlight_supported:1; 200 unsigned int kbd_illum_supported:1; 201 unsigned int touchpad_supported:1; 202 unsigned int eco_supported:1; 203 unsigned int accelerometer_supported:1; 204 unsigned int usb_sleep_charge_supported:1; 205 unsigned int usb_rapid_charge_supported:1; 206 unsigned int usb_sleep_music_supported:1; 207 unsigned int kbd_function_keys_supported:1; 208 unsigned int panel_power_on_supported:1; 209 unsigned int usb_three_supported:1; 210 unsigned int wwan_supported:1; 211 unsigned int cooling_method_supported:1; 212 unsigned int sysfs_created:1; 213 unsigned int special_functions; 214 215 bool kbd_event_generated; 216 bool kbd_led_registered; 217 bool illumination_led_registered; 218 bool eco_led_registered; 219 bool killswitch; 220 }; 221 222 static struct toshiba_acpi_dev *toshiba_acpi; 223 224 static bool disable_hotkeys; 225 module_param(disable_hotkeys, bool, 0444); 226 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation"); 227 228 static const struct acpi_device_id toshiba_device_ids[] = { 229 {"TOS6200", 0}, 230 {"TOS6207", 0}, 231 {"TOS6208", 0}, 232 {"TOS1900", 0}, 233 {"", 0}, 234 }; 235 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids); 236 237 static const struct key_entry toshiba_acpi_keymap[] = { 238 { KE_KEY, 0x9e, { KEY_RFKILL } }, 239 { KE_KEY, 0x101, { KEY_MUTE } }, 240 { KE_KEY, 0x102, { KEY_ZOOMOUT } }, 241 { KE_KEY, 0x103, { KEY_ZOOMIN } }, 242 { KE_KEY, 0x10f, { KEY_TAB } }, 243 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } }, 244 { KE_KEY, 0x139, { KEY_ZOOMRESET } }, 245 { KE_KEY, 0x13b, { KEY_COFFEE } }, 246 { KE_KEY, 0x13c, { KEY_BATTERY } }, 247 { KE_KEY, 0x13d, { KEY_SLEEP } }, 248 { KE_KEY, 0x13e, { KEY_SUSPEND } }, 249 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } }, 250 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } }, 251 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } }, 252 { KE_KEY, 0x142, { KEY_WLAN } }, 253 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } }, 254 { KE_KEY, 0x17f, { KEY_FN } }, 255 { KE_KEY, 0xb05, { KEY_PROG2 } }, 256 { KE_KEY, 0xb06, { KEY_WWW } }, 257 { KE_KEY, 0xb07, { KEY_MAIL } }, 258 { KE_KEY, 0xb30, { KEY_STOP } }, 259 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } }, 260 { KE_KEY, 0xb32, { KEY_NEXTSONG } }, 261 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } }, 262 { KE_KEY, 0xb5a, { KEY_MEDIA } }, 263 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */ 264 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */ 265 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */ 266 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */ 267 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */ 268 { KE_END, 0 }, 269 }; 270 271 static const struct key_entry toshiba_acpi_alt_keymap[] = { 272 { KE_KEY, 0x102, { KEY_ZOOMOUT } }, 273 { KE_KEY, 0x103, { KEY_ZOOMIN } }, 274 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } }, 275 { KE_KEY, 0x139, { KEY_ZOOMRESET } }, 276 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } }, 277 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } }, 278 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } }, 279 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } }, 280 { KE_KEY, 0x157, { KEY_MUTE } }, 281 { KE_KEY, 0x158, { KEY_WLAN } }, 282 { KE_END, 0 }, 283 }; 284 285 /* 286 * List of models which have a broken acpi-video backlight interface and thus 287 * need to use the toshiba (vendor) interface instead. 288 */ 289 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = { 290 {} 291 }; 292 293 /* 294 * Utility 295 */ 296 297 static inline void _set_bit(u32 *word, u32 mask, int value) 298 { 299 *word = (*word & ~mask) | (mask * value); 300 } 301 302 /* 303 * ACPI interface wrappers 304 */ 305 306 static int write_acpi_int(const char *methodName, int val) 307 { 308 acpi_status status; 309 310 status = acpi_execute_simple_method(NULL, (char *)methodName, val); 311 return (status == AE_OK) ? 0 : -EIO; 312 } 313 314 /* 315 * Perform a raw configuration call. Here we don't care about input or output 316 * buffer format. 317 */ 318 static acpi_status tci_raw(struct toshiba_acpi_dev *dev, 319 const u32 in[TCI_WORDS], u32 out[TCI_WORDS]) 320 { 321 struct acpi_object_list params; 322 union acpi_object in_objs[TCI_WORDS]; 323 struct acpi_buffer results; 324 union acpi_object out_objs[TCI_WORDS + 1]; 325 acpi_status status; 326 int i; 327 328 params.count = TCI_WORDS; 329 params.pointer = in_objs; 330 for (i = 0; i < TCI_WORDS; ++i) { 331 in_objs[i].type = ACPI_TYPE_INTEGER; 332 in_objs[i].integer.value = in[i]; 333 } 334 335 results.length = sizeof(out_objs); 336 results.pointer = out_objs; 337 338 status = acpi_evaluate_object(dev->acpi_dev->handle, 339 (char *)dev->method_hci, ¶ms, 340 &results); 341 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) { 342 for (i = 0; i < out_objs->package.count; ++i) 343 out[i] = out_objs->package.elements[i].integer.value; 344 } 345 346 return status; 347 } 348 349 /* 350 * Common hci tasks 351 * 352 * In addition to the ACPI status, the HCI system returns a result which 353 * may be useful (such as "not supported"). 354 */ 355 356 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1) 357 { 358 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 }; 359 u32 out[TCI_WORDS]; 360 acpi_status status = tci_raw(dev, in, out); 361 362 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE; 363 } 364 365 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1) 366 { 367 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 }; 368 u32 out[TCI_WORDS]; 369 acpi_status status = tci_raw(dev, in, out); 370 371 if (ACPI_FAILURE(status)) 372 return TOS_FAILURE; 373 374 *out1 = out[2]; 375 376 return out[0]; 377 } 378 379 /* 380 * Common sci tasks 381 */ 382 383 static int sci_open(struct toshiba_acpi_dev *dev) 384 { 385 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 }; 386 u32 out[TCI_WORDS]; 387 acpi_status status; 388 389 status = tci_raw(dev, in, out); 390 if (ACPI_FAILURE(status)) { 391 pr_err("ACPI call to open SCI failed\n"); 392 return 0; 393 } 394 395 if (out[0] == TOS_OPEN_CLOSE_OK) { 396 return 1; 397 } else if (out[0] == TOS_ALREADY_OPEN) { 398 pr_info("Toshiba SCI already opened\n"); 399 return 1; 400 } else if (out[0] == TOS_NOT_SUPPORTED) { 401 /* 402 * Some BIOSes do not have the SCI open/close functions 403 * implemented and return 0x8000 (Not Supported), failing to 404 * register some supported features. 405 * 406 * Simply return 1 if we hit those affected laptops to make the 407 * supported features work. 408 * 409 * In the case that some laptops really do not support the SCI, 410 * all the SCI dependent functions check for TOS_NOT_SUPPORTED, 411 * and thus, not registering support for the queried feature. 412 */ 413 return 1; 414 } else if (out[0] == TOS_NOT_PRESENT) { 415 pr_info("Toshiba SCI is not present\n"); 416 } 417 418 return 0; 419 } 420 421 static void sci_close(struct toshiba_acpi_dev *dev) 422 { 423 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 }; 424 u32 out[TCI_WORDS]; 425 acpi_status status; 426 427 status = tci_raw(dev, in, out); 428 if (ACPI_FAILURE(status)) { 429 pr_err("ACPI call to close SCI failed\n"); 430 return; 431 } 432 433 if (out[0] == TOS_OPEN_CLOSE_OK) 434 return; 435 else if (out[0] == TOS_NOT_OPENED) 436 pr_info("Toshiba SCI not opened\n"); 437 else if (out[0] == TOS_NOT_PRESENT) 438 pr_info("Toshiba SCI is not present\n"); 439 } 440 441 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1) 442 { 443 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 }; 444 u32 out[TCI_WORDS]; 445 acpi_status status = tci_raw(dev, in, out); 446 447 if (ACPI_FAILURE(status)) 448 return TOS_FAILURE; 449 450 *out1 = out[2]; 451 452 return out[0]; 453 } 454 455 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1) 456 { 457 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 }; 458 u32 out[TCI_WORDS]; 459 acpi_status status = tci_raw(dev, in, out); 460 461 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE; 462 } 463 464 /* Illumination support */ 465 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev) 466 { 467 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 }; 468 u32 out[TCI_WORDS]; 469 acpi_status status; 470 471 dev->illumination_supported = 0; 472 dev->illumination_led_registered = false; 473 474 if (!sci_open(dev)) 475 return; 476 477 status = tci_raw(dev, in, out); 478 sci_close(dev); 479 if (ACPI_FAILURE(status)) 480 pr_err("ACPI call to query Illumination support failed\n"); 481 else if (out[0] == TOS_SUCCESS) 482 dev->illumination_supported = 1; 483 } 484 485 static void toshiba_illumination_set(struct led_classdev *cdev, 486 enum led_brightness brightness) 487 { 488 struct toshiba_acpi_dev *dev = container_of(cdev, 489 struct toshiba_acpi_dev, led_dev); 490 u32 result; 491 u32 state; 492 493 /* First request : initialize communication. */ 494 if (!sci_open(dev)) 495 return; 496 497 /* Switch the illumination on/off */ 498 state = brightness ? 1 : 0; 499 result = sci_write(dev, SCI_ILLUMINATION, state); 500 sci_close(dev); 501 if (result == TOS_FAILURE) 502 pr_err("ACPI call for illumination failed\n"); 503 } 504 505 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev) 506 { 507 struct toshiba_acpi_dev *dev = container_of(cdev, 508 struct toshiba_acpi_dev, led_dev); 509 u32 state, result; 510 511 /* First request : initialize communication. */ 512 if (!sci_open(dev)) 513 return LED_OFF; 514 515 /* Check the illumination */ 516 result = sci_read(dev, SCI_ILLUMINATION, &state); 517 sci_close(dev); 518 if (result == TOS_FAILURE) { 519 pr_err("ACPI call for illumination failed\n"); 520 return LED_OFF; 521 } else if (result != TOS_SUCCESS) { 522 return LED_OFF; 523 } 524 525 return state ? LED_FULL : LED_OFF; 526 } 527 528 /* KBD Illumination */ 529 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev) 530 { 531 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 }; 532 u32 out[TCI_WORDS]; 533 acpi_status status; 534 535 dev->kbd_illum_supported = 0; 536 dev->kbd_led_registered = false; 537 dev->kbd_event_generated = false; 538 539 if (!sci_open(dev)) 540 return; 541 542 status = tci_raw(dev, in, out); 543 sci_close(dev); 544 if (ACPI_FAILURE(status)) { 545 pr_err("ACPI call to query kbd illumination support failed\n"); 546 } else if (out[0] == TOS_SUCCESS) { 547 /* 548 * Check for keyboard backlight timeout max value, 549 * previous kbd backlight implementation set this to 550 * 0x3c0003, and now the new implementation set this 551 * to 0x3c001a, use this to distinguish between them. 552 */ 553 if (out[3] == SCI_KBD_TIME_MAX) 554 dev->kbd_type = 2; 555 else 556 dev->kbd_type = 1; 557 /* Get the current keyboard backlight mode */ 558 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK; 559 /* Get the current time (1-60 seconds) */ 560 dev->kbd_time = out[2] >> HCI_MISC_SHIFT; 561 /* Flag as supported */ 562 dev->kbd_illum_supported = 1; 563 } 564 } 565 566 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time) 567 { 568 u32 result; 569 570 if (!sci_open(dev)) 571 return -EIO; 572 573 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time); 574 sci_close(dev); 575 if (result == TOS_FAILURE) 576 pr_err("ACPI call to set KBD backlight status failed\n"); 577 else if (result == TOS_NOT_SUPPORTED) 578 return -ENODEV; 579 580 return result == TOS_SUCCESS ? 0 : -EIO; 581 } 582 583 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time) 584 { 585 u32 result; 586 587 if (!sci_open(dev)) 588 return -EIO; 589 590 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time); 591 sci_close(dev); 592 if (result == TOS_FAILURE) 593 pr_err("ACPI call to get KBD backlight status failed\n"); 594 else if (result == TOS_NOT_SUPPORTED) 595 return -ENODEV; 596 597 return result == TOS_SUCCESS ? 0 : -EIO; 598 } 599 600 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev) 601 { 602 struct toshiba_acpi_dev *dev = container_of(cdev, 603 struct toshiba_acpi_dev, kbd_led); 604 u32 result; 605 u32 state; 606 607 /* Check the keyboard backlight state */ 608 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state); 609 if (result == TOS_FAILURE) { 610 pr_err("ACPI call to get the keyboard backlight failed\n"); 611 return LED_OFF; 612 } else if (result != TOS_SUCCESS) { 613 return LED_OFF; 614 } 615 616 return state ? LED_FULL : LED_OFF; 617 } 618 619 static void toshiba_kbd_backlight_set(struct led_classdev *cdev, 620 enum led_brightness brightness) 621 { 622 struct toshiba_acpi_dev *dev = container_of(cdev, 623 struct toshiba_acpi_dev, kbd_led); 624 u32 result; 625 u32 state; 626 627 /* Set the keyboard backlight state */ 628 state = brightness ? 1 : 0; 629 result = hci_write(dev, HCI_KBD_ILLUMINATION, state); 630 if (result == TOS_FAILURE) 631 pr_err("ACPI call to set KBD Illumination mode failed\n"); 632 } 633 634 /* TouchPad support */ 635 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state) 636 { 637 u32 result; 638 639 if (!sci_open(dev)) 640 return -EIO; 641 642 result = sci_write(dev, SCI_TOUCHPAD, state); 643 sci_close(dev); 644 if (result == TOS_FAILURE) 645 pr_err("ACPI call to set the touchpad failed\n"); 646 else if (result == TOS_NOT_SUPPORTED) 647 return -ENODEV; 648 649 return result == TOS_SUCCESS ? 0 : -EIO; 650 } 651 652 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state) 653 { 654 u32 result; 655 656 if (!sci_open(dev)) 657 return -EIO; 658 659 result = sci_read(dev, SCI_TOUCHPAD, state); 660 sci_close(dev); 661 if (result == TOS_FAILURE) 662 pr_err("ACPI call to query the touchpad failed\n"); 663 else if (result == TOS_NOT_SUPPORTED) 664 return -ENODEV; 665 666 return result == TOS_SUCCESS ? 0 : -EIO; 667 } 668 669 /* Eco Mode support */ 670 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev) 671 { 672 acpi_status status; 673 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 }; 674 u32 out[TCI_WORDS]; 675 676 dev->eco_supported = 0; 677 dev->eco_led_registered = false; 678 679 status = tci_raw(dev, in, out); 680 if (ACPI_FAILURE(status)) { 681 pr_err("ACPI call to get ECO led failed\n"); 682 } else if (out[0] == TOS_INPUT_DATA_ERROR) { 683 /* 684 * If we receive 0x8300 (Input Data Error), it means that the 685 * LED device is present, but that we just screwed the input 686 * parameters. 687 * 688 * Let's query the status of the LED to see if we really have a 689 * success response, indicating the actual presense of the LED, 690 * bail out otherwise. 691 */ 692 in[3] = 1; 693 status = tci_raw(dev, in, out); 694 if (ACPI_FAILURE(status)) 695 pr_err("ACPI call to get ECO led failed\n"); 696 else if (out[0] == TOS_SUCCESS) 697 dev->eco_supported = 1; 698 } 699 } 700 701 static enum led_brightness 702 toshiba_eco_mode_get_status(struct led_classdev *cdev) 703 { 704 struct toshiba_acpi_dev *dev = container_of(cdev, 705 struct toshiba_acpi_dev, eco_led); 706 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 }; 707 u32 out[TCI_WORDS]; 708 acpi_status status; 709 710 status = tci_raw(dev, in, out); 711 if (ACPI_FAILURE(status)) { 712 pr_err("ACPI call to get ECO led failed\n"); 713 return LED_OFF; 714 } else if (out[0] != TOS_SUCCESS) { 715 return LED_OFF; 716 } 717 718 return out[2] ? LED_FULL : LED_OFF; 719 } 720 721 static void toshiba_eco_mode_set_status(struct led_classdev *cdev, 722 enum led_brightness brightness) 723 { 724 struct toshiba_acpi_dev *dev = container_of(cdev, 725 struct toshiba_acpi_dev, eco_led); 726 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 }; 727 u32 out[TCI_WORDS]; 728 acpi_status status; 729 730 /* Switch the Eco Mode led on/off */ 731 in[2] = (brightness) ? 1 : 0; 732 status = tci_raw(dev, in, out); 733 if (ACPI_FAILURE(status)) 734 pr_err("ACPI call to set ECO led failed\n"); 735 } 736 737 /* Accelerometer support */ 738 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev) 739 { 740 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 }; 741 u32 out[TCI_WORDS]; 742 acpi_status status; 743 744 dev->accelerometer_supported = 0; 745 746 /* 747 * Check if the accelerometer call exists, 748 * this call also serves as initialization 749 */ 750 status = tci_raw(dev, in, out); 751 if (ACPI_FAILURE(status)) 752 pr_err("ACPI call to query the accelerometer failed\n"); 753 else if (out[0] == TOS_SUCCESS) 754 dev->accelerometer_supported = 1; 755 } 756 757 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev, 758 u32 *xy, u32 *z) 759 { 760 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 }; 761 u32 out[TCI_WORDS]; 762 acpi_status status; 763 764 /* Check the Accelerometer status */ 765 status = tci_raw(dev, in, out); 766 if (ACPI_FAILURE(status)) { 767 pr_err("ACPI call to query the accelerometer failed\n"); 768 return -EIO; 769 } else if (out[0] == TOS_NOT_SUPPORTED) { 770 return -ENODEV; 771 } else if (out[0] == TOS_SUCCESS) { 772 *xy = out[2]; 773 *z = out[4]; 774 return 0; 775 } 776 777 return -EIO; 778 } 779 780 /* Sleep (Charge and Music) utilities support */ 781 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev) 782 { 783 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 784 u32 out[TCI_WORDS]; 785 acpi_status status; 786 787 dev->usb_sleep_charge_supported = 0; 788 789 if (!sci_open(dev)) 790 return; 791 792 status = tci_raw(dev, in, out); 793 if (ACPI_FAILURE(status)) { 794 pr_err("ACPI call to get USB Sleep and Charge mode failed\n"); 795 sci_close(dev); 796 return; 797 } else if (out[0] == TOS_NOT_SUPPORTED) { 798 sci_close(dev); 799 return; 800 } else if (out[0] == TOS_SUCCESS) { 801 dev->usbsc_mode_base = out[4]; 802 } 803 804 in[5] = SCI_USB_CHARGE_BAT_LVL; 805 status = tci_raw(dev, in, out); 806 sci_close(dev); 807 if (ACPI_FAILURE(status)) { 808 pr_err("ACPI call to get USB Sleep and Charge mode failed\n"); 809 } else if (out[0] == TOS_SUCCESS) { 810 dev->usbsc_bat_level = out[2]; 811 /* Flag as supported */ 812 dev->usb_sleep_charge_supported = 1; 813 } 814 815 } 816 817 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev, 818 u32 *mode) 819 { 820 u32 result; 821 822 if (!sci_open(dev)) 823 return -EIO; 824 825 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode); 826 sci_close(dev); 827 if (result == TOS_FAILURE) 828 pr_err("ACPI call to set USB S&C mode failed\n"); 829 else if (result == TOS_NOT_SUPPORTED) 830 return -ENODEV; 831 832 return result == TOS_SUCCESS ? 0 : -EIO; 833 } 834 835 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev, 836 u32 mode) 837 { 838 u32 result; 839 840 if (!sci_open(dev)) 841 return -EIO; 842 843 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode); 844 sci_close(dev); 845 if (result == TOS_FAILURE) 846 pr_err("ACPI call to set USB S&C mode failed\n"); 847 else if (result == TOS_NOT_SUPPORTED) 848 return -ENODEV; 849 850 return result == TOS_SUCCESS ? 0 : -EIO; 851 } 852 853 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev, 854 u32 *mode) 855 { 856 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 857 u32 out[TCI_WORDS]; 858 acpi_status status; 859 860 if (!sci_open(dev)) 861 return -EIO; 862 863 in[5] = SCI_USB_CHARGE_BAT_LVL; 864 status = tci_raw(dev, in, out); 865 sci_close(dev); 866 if (ACPI_FAILURE(status)) { 867 pr_err("ACPI call to get USB S&C battery level failed\n"); 868 } else if (out[0] == TOS_NOT_SUPPORTED) { 869 return -ENODEV; 870 } else if (out[0] == TOS_SUCCESS) { 871 *mode = out[2]; 872 return 0; 873 } 874 875 return -EIO; 876 } 877 878 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev, 879 u32 mode) 880 { 881 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 882 u32 out[TCI_WORDS]; 883 acpi_status status; 884 885 if (!sci_open(dev)) 886 return -EIO; 887 888 in[2] = mode; 889 in[5] = SCI_USB_CHARGE_BAT_LVL; 890 status = tci_raw(dev, in, out); 891 sci_close(dev); 892 if (ACPI_FAILURE(status)) 893 pr_err("ACPI call to set USB S&C battery level failed\n"); 894 else if (out[0] == TOS_NOT_SUPPORTED) 895 return -ENODEV; 896 897 return out[0] == TOS_SUCCESS ? 0 : -EIO; 898 } 899 900 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev, 901 u32 *state) 902 { 903 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 904 u32 out[TCI_WORDS]; 905 acpi_status status; 906 907 if (!sci_open(dev)) 908 return -EIO; 909 910 in[5] = SCI_USB_CHARGE_RAPID_DSP; 911 status = tci_raw(dev, in, out); 912 sci_close(dev); 913 if (ACPI_FAILURE(status)) { 914 pr_err("ACPI call to get USB Rapid Charge failed\n"); 915 } else if (out[0] == TOS_NOT_SUPPORTED) { 916 return -ENODEV; 917 } else if (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) { 918 *state = out[2]; 919 return 0; 920 } 921 922 return -EIO; 923 } 924 925 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev, 926 u32 state) 927 { 928 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 }; 929 u32 out[TCI_WORDS]; 930 acpi_status status; 931 932 if (!sci_open(dev)) 933 return -EIO; 934 935 in[2] = state; 936 in[5] = SCI_USB_CHARGE_RAPID_DSP; 937 status = tci_raw(dev, in, out); 938 sci_close(dev); 939 if (ACPI_FAILURE(status)) 940 pr_err("ACPI call to set USB Rapid Charge failed\n"); 941 else if (out[0] == TOS_NOT_SUPPORTED) 942 return -ENODEV; 943 944 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO; 945 } 946 947 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state) 948 { 949 u32 result; 950 951 if (!sci_open(dev)) 952 return -EIO; 953 954 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state); 955 sci_close(dev); 956 if (result == TOS_FAILURE) 957 pr_err("ACPI call to get Sleep and Music failed\n"); 958 else if (result == TOS_NOT_SUPPORTED) 959 return -ENODEV; 960 961 return result == TOS_SUCCESS ? 0 : -EIO; 962 } 963 964 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state) 965 { 966 u32 result; 967 968 if (!sci_open(dev)) 969 return -EIO; 970 971 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state); 972 sci_close(dev); 973 if (result == TOS_FAILURE) 974 pr_err("ACPI call to set Sleep and Music failed\n"); 975 else if (result == TOS_NOT_SUPPORTED) 976 return -ENODEV; 977 978 return result == TOS_SUCCESS ? 0 : -EIO; 979 } 980 981 /* Keyboard function keys */ 982 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode) 983 { 984 u32 result; 985 986 if (!sci_open(dev)) 987 return -EIO; 988 989 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode); 990 sci_close(dev); 991 if (result == TOS_FAILURE) 992 pr_err("ACPI call to get KBD function keys failed\n"); 993 else if (result == TOS_NOT_SUPPORTED) 994 return -ENODEV; 995 996 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 997 } 998 999 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode) 1000 { 1001 u32 result; 1002 1003 if (!sci_open(dev)) 1004 return -EIO; 1005 1006 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode); 1007 sci_close(dev); 1008 if (result == TOS_FAILURE) 1009 pr_err("ACPI call to set KBD function keys failed\n"); 1010 else if (result == TOS_NOT_SUPPORTED) 1011 return -ENODEV; 1012 1013 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1014 } 1015 1016 /* Panel Power ON */ 1017 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state) 1018 { 1019 u32 result; 1020 1021 if (!sci_open(dev)) 1022 return -EIO; 1023 1024 result = sci_read(dev, SCI_PANEL_POWER_ON, state); 1025 sci_close(dev); 1026 if (result == TOS_FAILURE) 1027 pr_err("ACPI call to get Panel Power ON failed\n"); 1028 else if (result == TOS_NOT_SUPPORTED) 1029 return -ENODEV; 1030 1031 return result == TOS_SUCCESS ? 0 : -EIO; 1032 } 1033 1034 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state) 1035 { 1036 u32 result; 1037 1038 if (!sci_open(dev)) 1039 return -EIO; 1040 1041 result = sci_write(dev, SCI_PANEL_POWER_ON, state); 1042 sci_close(dev); 1043 if (result == TOS_FAILURE) 1044 pr_err("ACPI call to set Panel Power ON failed\n"); 1045 else if (result == TOS_NOT_SUPPORTED) 1046 return -ENODEV; 1047 1048 return result == TOS_SUCCESS ? 0 : -EIO; 1049 } 1050 1051 /* USB Three */ 1052 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state) 1053 { 1054 u32 result; 1055 1056 if (!sci_open(dev)) 1057 return -EIO; 1058 1059 result = sci_read(dev, SCI_USB_THREE, state); 1060 sci_close(dev); 1061 if (result == TOS_FAILURE) 1062 pr_err("ACPI call to get USB 3 failed\n"); 1063 else if (result == TOS_NOT_SUPPORTED) 1064 return -ENODEV; 1065 1066 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1067 } 1068 1069 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state) 1070 { 1071 u32 result; 1072 1073 if (!sci_open(dev)) 1074 return -EIO; 1075 1076 result = sci_write(dev, SCI_USB_THREE, state); 1077 sci_close(dev); 1078 if (result == TOS_FAILURE) 1079 pr_err("ACPI call to set USB 3 failed\n"); 1080 else if (result == TOS_NOT_SUPPORTED) 1081 return -ENODEV; 1082 1083 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1084 } 1085 1086 /* Hotkey Event type */ 1087 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev, 1088 u32 *type) 1089 { 1090 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 }; 1091 u32 out[TCI_WORDS]; 1092 acpi_status status; 1093 1094 status = tci_raw(dev, in, out); 1095 if (ACPI_FAILURE(status)) { 1096 pr_err("ACPI call to get System type failed\n"); 1097 } else if (out[0] == TOS_NOT_SUPPORTED) { 1098 return -ENODEV; 1099 } else if (out[0] == TOS_SUCCESS) { 1100 *type = out[3]; 1101 return 0; 1102 } 1103 1104 return -EIO; 1105 } 1106 1107 /* Wireless status (RFKill, WLAN, BT, WWAN) */ 1108 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev) 1109 { 1110 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 }; 1111 u32 out[TCI_WORDS]; 1112 acpi_status status; 1113 1114 in[3] = HCI_WIRELESS_STATUS; 1115 status = tci_raw(dev, in, out); 1116 1117 if (ACPI_FAILURE(status)) { 1118 pr_err("ACPI call to get Wireless status failed\n"); 1119 return -EIO; 1120 } 1121 1122 if (out[0] == TOS_NOT_SUPPORTED) 1123 return -ENODEV; 1124 1125 if (out[0] != TOS_SUCCESS) 1126 return -EIO; 1127 1128 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS); 1129 1130 return 0; 1131 } 1132 1133 /* WWAN */ 1134 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev) 1135 { 1136 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 }; 1137 u32 out[TCI_WORDS]; 1138 acpi_status status; 1139 1140 dev->wwan_supported = 0; 1141 1142 /* 1143 * WWAN support can be queried by setting the in[3] value to 1144 * HCI_WIRELESS_WWAN (0x03). 1145 * 1146 * If supported, out[0] contains TOS_SUCCESS and out[2] contains 1147 * HCI_WIRELESS_WWAN_STATUS (0x2000). 1148 * 1149 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300) 1150 * or TOS_NOT_SUPPORTED (0x8000). 1151 */ 1152 in[3] = HCI_WIRELESS_WWAN; 1153 status = tci_raw(dev, in, out); 1154 1155 if (ACPI_FAILURE(status)) { 1156 pr_err("ACPI call to get WWAN status failed\n"); 1157 return; 1158 } 1159 1160 if (out[0] != TOS_SUCCESS) 1161 return; 1162 1163 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS); 1164 } 1165 1166 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state) 1167 { 1168 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 }; 1169 u32 out[TCI_WORDS]; 1170 acpi_status status; 1171 1172 in[3] = HCI_WIRELESS_WWAN_STATUS; 1173 status = tci_raw(dev, in, out); 1174 1175 if (ACPI_FAILURE(status)) { 1176 pr_err("ACPI call to set WWAN status failed\n"); 1177 return -EIO; 1178 } 1179 1180 if (out[0] == TOS_NOT_SUPPORTED) 1181 return -ENODEV; 1182 1183 if (out[0] != TOS_SUCCESS) 1184 return -EIO; 1185 1186 /* 1187 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to 1188 * (de)activate the device, but some others need the 1189 * HCI_WIRELESS_WWAN_POWER call as well. 1190 */ 1191 in[3] = HCI_WIRELESS_WWAN_POWER; 1192 status = tci_raw(dev, in, out); 1193 1194 if (ACPI_FAILURE(status)) { 1195 pr_err("ACPI call to set WWAN power failed\n"); 1196 return -EIO; 1197 } 1198 1199 if (out[0] == TOS_NOT_SUPPORTED) 1200 return -ENODEV; 1201 1202 return out[0] == TOS_SUCCESS ? 0 : -EIO; 1203 } 1204 1205 /* Cooling Method */ 1206 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev) 1207 { 1208 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 }; 1209 u32 out[TCI_WORDS]; 1210 acpi_status status; 1211 1212 dev->cooling_method_supported = 0; 1213 dev->max_cooling_method = 0; 1214 1215 status = tci_raw(dev, in, out); 1216 if (ACPI_FAILURE(status)) 1217 pr_err("ACPI call to get Cooling Method failed\n"); 1218 1219 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2) 1220 return; 1221 1222 dev->cooling_method_supported = 1; 1223 dev->max_cooling_method = out[3]; 1224 } 1225 1226 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state) 1227 { 1228 u32 result = hci_read(dev, HCI_COOLING_METHOD, state); 1229 1230 if (result == TOS_FAILURE) 1231 pr_err("ACPI call to get Cooling Method failed\n"); 1232 1233 if (result == TOS_NOT_SUPPORTED) 1234 return -ENODEV; 1235 1236 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1237 } 1238 1239 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state) 1240 { 1241 u32 result = hci_write(dev, HCI_COOLING_METHOD, state); 1242 1243 if (result == TOS_FAILURE) 1244 pr_err("ACPI call to get Cooling Method failed\n"); 1245 1246 if (result == TOS_NOT_SUPPORTED) 1247 return -ENODEV; 1248 1249 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO; 1250 } 1251 1252 /* Transflective Backlight */ 1253 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status) 1254 { 1255 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status); 1256 1257 if (result == TOS_FAILURE) 1258 pr_err("ACPI call to get Transflective Backlight failed\n"); 1259 else if (result == TOS_NOT_SUPPORTED) 1260 return -ENODEV; 1261 1262 return result == TOS_SUCCESS ? 0 : -EIO; 1263 } 1264 1265 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status) 1266 { 1267 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status); 1268 1269 if (result == TOS_FAILURE) 1270 pr_err("ACPI call to set Transflective Backlight failed\n"); 1271 else if (result == TOS_NOT_SUPPORTED) 1272 return -ENODEV; 1273 1274 return result == TOS_SUCCESS ? 0 : -EIO; 1275 } 1276 1277 static struct proc_dir_entry *toshiba_proc_dir; 1278 1279 /* LCD Brightness */ 1280 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev) 1281 { 1282 u32 result; 1283 u32 value; 1284 int brightness = 0; 1285 1286 if (dev->tr_backlight_supported) { 1287 int ret = get_tr_backlight_status(dev, &value); 1288 1289 if (ret) 1290 return ret; 1291 if (value) 1292 return 0; 1293 brightness++; 1294 } 1295 1296 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value); 1297 if (result == TOS_FAILURE) 1298 pr_err("ACPI call to get LCD Brightness failed\n"); 1299 else if (result == TOS_NOT_SUPPORTED) 1300 return -ENODEV; 1301 if (result == TOS_SUCCESS) 1302 return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT); 1303 1304 return -EIO; 1305 } 1306 1307 static int get_lcd_brightness(struct backlight_device *bd) 1308 { 1309 struct toshiba_acpi_dev *dev = bl_get_data(bd); 1310 1311 return __get_lcd_brightness(dev); 1312 } 1313 1314 static int lcd_proc_show(struct seq_file *m, void *v) 1315 { 1316 struct toshiba_acpi_dev *dev = m->private; 1317 int levels; 1318 int value; 1319 1320 if (!dev->backlight_dev) 1321 return -ENODEV; 1322 1323 levels = dev->backlight_dev->props.max_brightness + 1; 1324 value = get_lcd_brightness(dev->backlight_dev); 1325 if (value >= 0) { 1326 seq_printf(m, "brightness: %d\n", value); 1327 seq_printf(m, "brightness_levels: %d\n", levels); 1328 return 0; 1329 } 1330 1331 pr_err("Error reading LCD brightness\n"); 1332 1333 return -EIO; 1334 } 1335 1336 static int lcd_proc_open(struct inode *inode, struct file *file) 1337 { 1338 return single_open(file, lcd_proc_show, PDE_DATA(inode)); 1339 } 1340 1341 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value) 1342 { 1343 u32 result; 1344 1345 if (dev->tr_backlight_supported) { 1346 int ret = set_tr_backlight_status(dev, !value); 1347 1348 if (ret) 1349 return ret; 1350 if (value) 1351 value--; 1352 } 1353 1354 value = value << HCI_LCD_BRIGHTNESS_SHIFT; 1355 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value); 1356 if (result == TOS_FAILURE) 1357 pr_err("ACPI call to set LCD Brightness failed\n"); 1358 else if (result == TOS_NOT_SUPPORTED) 1359 return -ENODEV; 1360 1361 return result == TOS_SUCCESS ? 0 : -EIO; 1362 } 1363 1364 static int set_lcd_status(struct backlight_device *bd) 1365 { 1366 struct toshiba_acpi_dev *dev = bl_get_data(bd); 1367 1368 return set_lcd_brightness(dev, bd->props.brightness); 1369 } 1370 1371 static ssize_t lcd_proc_write(struct file *file, const char __user *buf, 1372 size_t count, loff_t *pos) 1373 { 1374 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); 1375 char cmd[42]; 1376 size_t len; 1377 int levels = dev->backlight_dev->props.max_brightness + 1; 1378 int value; 1379 1380 len = min(count, sizeof(cmd) - 1); 1381 if (copy_from_user(cmd, buf, len)) 1382 return -EFAULT; 1383 cmd[len] = '\0'; 1384 1385 if (sscanf(cmd, " brightness : %i", &value) != 1 && 1386 value < 0 && value > levels) 1387 return -EINVAL; 1388 1389 if (set_lcd_brightness(dev, value)) 1390 return -EIO; 1391 1392 return count; 1393 } 1394 1395 static const struct file_operations lcd_proc_fops = { 1396 .owner = THIS_MODULE, 1397 .open = lcd_proc_open, 1398 .read = seq_read, 1399 .llseek = seq_lseek, 1400 .release = single_release, 1401 .write = lcd_proc_write, 1402 }; 1403 1404 /* Video-Out */ 1405 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status) 1406 { 1407 u32 result = hci_read(dev, HCI_VIDEO_OUT, status); 1408 1409 if (result == TOS_FAILURE) 1410 pr_err("ACPI call to get Video-Out failed\n"); 1411 else if (result == TOS_NOT_SUPPORTED) 1412 return -ENODEV; 1413 1414 return result == TOS_SUCCESS ? 0 : -EIO; 1415 } 1416 1417 static int video_proc_show(struct seq_file *m, void *v) 1418 { 1419 struct toshiba_acpi_dev *dev = m->private; 1420 u32 value; 1421 1422 if (!get_video_status(dev, &value)) { 1423 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0; 1424 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0; 1425 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0; 1426 1427 seq_printf(m, "lcd_out: %d\n", is_lcd); 1428 seq_printf(m, "crt_out: %d\n", is_crt); 1429 seq_printf(m, "tv_out: %d\n", is_tv); 1430 return 0; 1431 } 1432 1433 return -EIO; 1434 } 1435 1436 static int video_proc_open(struct inode *inode, struct file *file) 1437 { 1438 return single_open(file, video_proc_show, PDE_DATA(inode)); 1439 } 1440 1441 static ssize_t video_proc_write(struct file *file, const char __user *buf, 1442 size_t count, loff_t *pos) 1443 { 1444 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); 1445 char *buffer; 1446 char *cmd; 1447 int remain = count; 1448 int lcd_out = -1; 1449 int crt_out = -1; 1450 int tv_out = -1; 1451 int value; 1452 int ret; 1453 u32 video_out; 1454 1455 cmd = kmalloc(count + 1, GFP_KERNEL); 1456 if (!cmd) 1457 return -ENOMEM; 1458 if (copy_from_user(cmd, buf, count)) { 1459 kfree(cmd); 1460 return -EFAULT; 1461 } 1462 cmd[count] = '\0'; 1463 1464 buffer = cmd; 1465 1466 /* 1467 * Scan expression. Multiple expressions may be delimited with ; 1468 * NOTE: To keep scanning simple, invalid fields are ignored. 1469 */ 1470 while (remain) { 1471 if (sscanf(buffer, " lcd_out : %i", &value) == 1) 1472 lcd_out = value & 1; 1473 else if (sscanf(buffer, " crt_out : %i", &value) == 1) 1474 crt_out = value & 1; 1475 else if (sscanf(buffer, " tv_out : %i", &value) == 1) 1476 tv_out = value & 1; 1477 /* Advance to one character past the next ; */ 1478 do { 1479 ++buffer; 1480 --remain; 1481 } while (remain && *(buffer - 1) != ';'); 1482 } 1483 1484 kfree(cmd); 1485 1486 ret = get_video_status(dev, &video_out); 1487 if (!ret) { 1488 unsigned int new_video_out = video_out; 1489 1490 if (lcd_out != -1) 1491 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out); 1492 if (crt_out != -1) 1493 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out); 1494 if (tv_out != -1) 1495 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out); 1496 /* 1497 * To avoid unnecessary video disruption, only write the new 1498 * video setting if something changed. 1499 */ 1500 if (new_video_out != video_out) 1501 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out); 1502 } 1503 1504 return ret ? -EIO : count; 1505 } 1506 1507 static const struct file_operations video_proc_fops = { 1508 .owner = THIS_MODULE, 1509 .open = video_proc_open, 1510 .read = seq_read, 1511 .llseek = seq_lseek, 1512 .release = single_release, 1513 .write = video_proc_write, 1514 }; 1515 1516 /* Fan status */ 1517 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status) 1518 { 1519 u32 result = hci_read(dev, HCI_FAN, status); 1520 1521 if (result == TOS_FAILURE) 1522 pr_err("ACPI call to get Fan status failed\n"); 1523 else if (result == TOS_NOT_SUPPORTED) 1524 return -ENODEV; 1525 1526 return result == TOS_SUCCESS ? 0 : -EIO; 1527 } 1528 1529 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status) 1530 { 1531 u32 result = hci_write(dev, HCI_FAN, status); 1532 1533 if (result == TOS_FAILURE) 1534 pr_err("ACPI call to set Fan status failed\n"); 1535 else if (result == TOS_NOT_SUPPORTED) 1536 return -ENODEV; 1537 1538 return result == TOS_SUCCESS ? 0 : -EIO; 1539 } 1540 1541 static int fan_proc_show(struct seq_file *m, void *v) 1542 { 1543 struct toshiba_acpi_dev *dev = m->private; 1544 u32 value; 1545 1546 if (get_fan_status(dev, &value)) 1547 return -EIO; 1548 1549 seq_printf(m, "running: %d\n", (value > 0)); 1550 seq_printf(m, "force_on: %d\n", dev->force_fan); 1551 1552 return 0; 1553 } 1554 1555 static int fan_proc_open(struct inode *inode, struct file *file) 1556 { 1557 return single_open(file, fan_proc_show, PDE_DATA(inode)); 1558 } 1559 1560 static ssize_t fan_proc_write(struct file *file, const char __user *buf, 1561 size_t count, loff_t *pos) 1562 { 1563 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); 1564 char cmd[42]; 1565 size_t len; 1566 int value; 1567 1568 len = min(count, sizeof(cmd) - 1); 1569 if (copy_from_user(cmd, buf, len)) 1570 return -EFAULT; 1571 cmd[len] = '\0'; 1572 1573 if (sscanf(cmd, " force_on : %i", &value) != 1 && 1574 value != 0 && value != 1) 1575 return -EINVAL; 1576 1577 if (set_fan_status(dev, value)) 1578 return -EIO; 1579 1580 dev->force_fan = value; 1581 1582 return count; 1583 } 1584 1585 static const struct file_operations fan_proc_fops = { 1586 .owner = THIS_MODULE, 1587 .open = fan_proc_open, 1588 .read = seq_read, 1589 .llseek = seq_lseek, 1590 .release = single_release, 1591 .write = fan_proc_write, 1592 }; 1593 1594 static int keys_proc_show(struct seq_file *m, void *v) 1595 { 1596 struct toshiba_acpi_dev *dev = m->private; 1597 1598 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid); 1599 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event); 1600 1601 return 0; 1602 } 1603 1604 static int keys_proc_open(struct inode *inode, struct file *file) 1605 { 1606 return single_open(file, keys_proc_show, PDE_DATA(inode)); 1607 } 1608 1609 static ssize_t keys_proc_write(struct file *file, const char __user *buf, 1610 size_t count, loff_t *pos) 1611 { 1612 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file)); 1613 char cmd[42]; 1614 size_t len; 1615 int value; 1616 1617 len = min(count, sizeof(cmd) - 1); 1618 if (copy_from_user(cmd, buf, len)) 1619 return -EFAULT; 1620 cmd[len] = '\0'; 1621 1622 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) 1623 dev->key_event_valid = 0; 1624 else 1625 return -EINVAL; 1626 1627 return count; 1628 } 1629 1630 static const struct file_operations keys_proc_fops = { 1631 .owner = THIS_MODULE, 1632 .open = keys_proc_open, 1633 .read = seq_read, 1634 .llseek = seq_lseek, 1635 .release = single_release, 1636 .write = keys_proc_write, 1637 }; 1638 1639 static int version_proc_show(struct seq_file *m, void *v) 1640 { 1641 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION); 1642 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION); 1643 return 0; 1644 } 1645 1646 static int version_proc_open(struct inode *inode, struct file *file) 1647 { 1648 return single_open(file, version_proc_show, PDE_DATA(inode)); 1649 } 1650 1651 static const struct file_operations version_proc_fops = { 1652 .owner = THIS_MODULE, 1653 .open = version_proc_open, 1654 .read = seq_read, 1655 .llseek = seq_lseek, 1656 .release = single_release, 1657 }; 1658 1659 /* 1660 * Proc and module init 1661 */ 1662 1663 #define PROC_TOSHIBA "toshiba" 1664 1665 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev) 1666 { 1667 if (dev->backlight_dev) 1668 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1669 &lcd_proc_fops, dev); 1670 if (dev->video_supported) 1671 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1672 &video_proc_fops, dev); 1673 if (dev->fan_supported) 1674 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1675 &fan_proc_fops, dev); 1676 if (dev->hotkey_dev) 1677 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, 1678 &keys_proc_fops, dev); 1679 proc_create_data("version", S_IRUGO, toshiba_proc_dir, 1680 &version_proc_fops, dev); 1681 } 1682 1683 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev) 1684 { 1685 if (dev->backlight_dev) 1686 remove_proc_entry("lcd", toshiba_proc_dir); 1687 if (dev->video_supported) 1688 remove_proc_entry("video", toshiba_proc_dir); 1689 if (dev->fan_supported) 1690 remove_proc_entry("fan", toshiba_proc_dir); 1691 if (dev->hotkey_dev) 1692 remove_proc_entry("keys", toshiba_proc_dir); 1693 remove_proc_entry("version", toshiba_proc_dir); 1694 } 1695 1696 static const struct backlight_ops toshiba_backlight_data = { 1697 .options = BL_CORE_SUSPENDRESUME, 1698 .get_brightness = get_lcd_brightness, 1699 .update_status = set_lcd_status, 1700 }; 1701 1702 /* Keyboard backlight work */ 1703 static void toshiba_acpi_kbd_bl_work(struct work_struct *work); 1704 1705 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work); 1706 1707 /* 1708 * Sysfs files 1709 */ 1710 static ssize_t version_show(struct device *dev, 1711 struct device_attribute *attr, char *buf) 1712 { 1713 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION); 1714 } 1715 static DEVICE_ATTR_RO(version); 1716 1717 static ssize_t fan_store(struct device *dev, 1718 struct device_attribute *attr, 1719 const char *buf, size_t count) 1720 { 1721 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1722 int state; 1723 int ret; 1724 1725 ret = kstrtoint(buf, 0, &state); 1726 if (ret) 1727 return ret; 1728 1729 if (state != 0 && state != 1) 1730 return -EINVAL; 1731 1732 ret = set_fan_status(toshiba, state); 1733 if (ret) 1734 return ret; 1735 1736 return count; 1737 } 1738 1739 static ssize_t fan_show(struct device *dev, 1740 struct device_attribute *attr, char *buf) 1741 { 1742 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1743 u32 value; 1744 int ret; 1745 1746 ret = get_fan_status(toshiba, &value); 1747 if (ret) 1748 return ret; 1749 1750 return sprintf(buf, "%d\n", value); 1751 } 1752 static DEVICE_ATTR_RW(fan); 1753 1754 static ssize_t kbd_backlight_mode_store(struct device *dev, 1755 struct device_attribute *attr, 1756 const char *buf, size_t count) 1757 { 1758 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1759 int mode; 1760 int ret; 1761 1762 1763 ret = kstrtoint(buf, 0, &mode); 1764 if (ret) 1765 return ret; 1766 1767 /* Check for supported modes depending on keyboard backlight type */ 1768 if (toshiba->kbd_type == 1) { 1769 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */ 1770 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO) 1771 return -EINVAL; 1772 } else if (toshiba->kbd_type == 2) { 1773 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */ 1774 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON && 1775 mode != SCI_KBD_MODE_OFF) 1776 return -EINVAL; 1777 } 1778 1779 /* 1780 * Set the Keyboard Backlight Mode where: 1781 * Auto - KBD backlight turns off automatically in given time 1782 * FN-Z - KBD backlight "toggles" when hotkey pressed 1783 * ON - KBD backlight is always on 1784 * OFF - KBD backlight is always off 1785 */ 1786 1787 /* Only make a change if the actual mode has changed */ 1788 if (toshiba->kbd_mode != mode) { 1789 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */ 1790 int time = toshiba->kbd_time << HCI_MISC_SHIFT; 1791 1792 /* OR the "base time" to the actual method format */ 1793 if (toshiba->kbd_type == 1) { 1794 /* Type 1 requires the current mode */ 1795 time |= toshiba->kbd_mode; 1796 } else if (toshiba->kbd_type == 2) { 1797 /* Type 2 requires the desired mode */ 1798 time |= mode; 1799 } 1800 1801 ret = toshiba_kbd_illum_status_set(toshiba, time); 1802 if (ret) 1803 return ret; 1804 1805 toshiba->kbd_mode = mode; 1806 1807 /* 1808 * Some laptop models with the second generation backlit 1809 * keyboard (type 2) do not generate the keyboard backlight 1810 * changed event (0x92), and thus, the driver will never update 1811 * the sysfs entries. 1812 * 1813 * The event is generated right when changing the keyboard 1814 * backlight mode and the *notify function will set the 1815 * kbd_event_generated to true. 1816 * 1817 * In case the event is not generated, schedule the keyboard 1818 * backlight work to update the sysfs entries and emulate the 1819 * event via genetlink. 1820 */ 1821 if (toshiba->kbd_type == 2 && 1822 !toshiba_acpi->kbd_event_generated) 1823 schedule_work(&kbd_bl_work); 1824 } 1825 1826 return count; 1827 } 1828 1829 static ssize_t kbd_backlight_mode_show(struct device *dev, 1830 struct device_attribute *attr, 1831 char *buf) 1832 { 1833 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1834 u32 time; 1835 1836 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0) 1837 return -EIO; 1838 1839 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK); 1840 } 1841 static DEVICE_ATTR_RW(kbd_backlight_mode); 1842 1843 static ssize_t kbd_type_show(struct device *dev, 1844 struct device_attribute *attr, char *buf) 1845 { 1846 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1847 1848 return sprintf(buf, "%d\n", toshiba->kbd_type); 1849 } 1850 static DEVICE_ATTR_RO(kbd_type); 1851 1852 static ssize_t available_kbd_modes_show(struct device *dev, 1853 struct device_attribute *attr, 1854 char *buf) 1855 { 1856 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1857 1858 if (toshiba->kbd_type == 1) 1859 return sprintf(buf, "0x%x 0x%x\n", 1860 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO); 1861 1862 return sprintf(buf, "0x%x 0x%x 0x%x\n", 1863 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF); 1864 } 1865 static DEVICE_ATTR_RO(available_kbd_modes); 1866 1867 static ssize_t kbd_backlight_timeout_store(struct device *dev, 1868 struct device_attribute *attr, 1869 const char *buf, size_t count) 1870 { 1871 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1872 int time; 1873 int ret; 1874 1875 ret = kstrtoint(buf, 0, &time); 1876 if (ret) 1877 return ret; 1878 1879 /* Check for supported values depending on kbd_type */ 1880 if (toshiba->kbd_type == 1) { 1881 if (time < 0 || time > 60) 1882 return -EINVAL; 1883 } else if (toshiba->kbd_type == 2) { 1884 if (time < 1 || time > 60) 1885 return -EINVAL; 1886 } 1887 1888 /* Set the Keyboard Backlight Timeout */ 1889 1890 /* Only make a change if the actual timeout has changed */ 1891 if (toshiba->kbd_time != time) { 1892 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */ 1893 time = time << HCI_MISC_SHIFT; 1894 /* OR the "base time" to the actual method format */ 1895 if (toshiba->kbd_type == 1) 1896 time |= SCI_KBD_MODE_FNZ; 1897 else if (toshiba->kbd_type == 2) 1898 time |= SCI_KBD_MODE_AUTO; 1899 1900 ret = toshiba_kbd_illum_status_set(toshiba, time); 1901 if (ret) 1902 return ret; 1903 1904 toshiba->kbd_time = time >> HCI_MISC_SHIFT; 1905 } 1906 1907 return count; 1908 } 1909 1910 static ssize_t kbd_backlight_timeout_show(struct device *dev, 1911 struct device_attribute *attr, 1912 char *buf) 1913 { 1914 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1915 u32 time; 1916 1917 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0) 1918 return -EIO; 1919 1920 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT); 1921 } 1922 static DEVICE_ATTR_RW(kbd_backlight_timeout); 1923 1924 static ssize_t touchpad_store(struct device *dev, 1925 struct device_attribute *attr, 1926 const char *buf, size_t count) 1927 { 1928 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1929 int state; 1930 int ret; 1931 1932 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */ 1933 ret = kstrtoint(buf, 0, &state); 1934 if (ret) 1935 return ret; 1936 if (state != 0 && state != 1) 1937 return -EINVAL; 1938 1939 ret = toshiba_touchpad_set(toshiba, state); 1940 if (ret) 1941 return ret; 1942 1943 return count; 1944 } 1945 1946 static ssize_t touchpad_show(struct device *dev, 1947 struct device_attribute *attr, char *buf) 1948 { 1949 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1950 u32 state; 1951 int ret; 1952 1953 ret = toshiba_touchpad_get(toshiba, &state); 1954 if (ret < 0) 1955 return ret; 1956 1957 return sprintf(buf, "%i\n", state); 1958 } 1959 static DEVICE_ATTR_RW(touchpad); 1960 1961 static ssize_t position_show(struct device *dev, 1962 struct device_attribute *attr, char *buf) 1963 { 1964 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1965 u32 xyval, zval, tmp; 1966 u16 x, y, z; 1967 int ret; 1968 1969 xyval = zval = 0; 1970 ret = toshiba_accelerometer_get(toshiba, &xyval, &zval); 1971 if (ret < 0) 1972 return ret; 1973 1974 x = xyval & HCI_ACCEL_MASK; 1975 tmp = xyval >> HCI_MISC_SHIFT; 1976 y = tmp & HCI_ACCEL_MASK; 1977 z = zval & HCI_ACCEL_MASK; 1978 1979 return sprintf(buf, "%d %d %d\n", x, y, z); 1980 } 1981 static DEVICE_ATTR_RO(position); 1982 1983 static ssize_t usb_sleep_charge_show(struct device *dev, 1984 struct device_attribute *attr, char *buf) 1985 { 1986 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 1987 u32 mode; 1988 int ret; 1989 1990 ret = toshiba_usb_sleep_charge_get(toshiba, &mode); 1991 if (ret < 0) 1992 return ret; 1993 1994 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK); 1995 } 1996 1997 static ssize_t usb_sleep_charge_store(struct device *dev, 1998 struct device_attribute *attr, 1999 const char *buf, size_t count) 2000 { 2001 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2002 u32 mode; 2003 int state; 2004 int ret; 2005 2006 ret = kstrtoint(buf, 0, &state); 2007 if (ret) 2008 return ret; 2009 /* 2010 * Check for supported values, where: 2011 * 0 - Disabled 2012 * 1 - Alternate (Non USB conformant devices that require more power) 2013 * 2 - Auto (USB conformant devices) 2014 * 3 - Typical 2015 */ 2016 if (state != 0 && state != 1 && state != 2 && state != 3) 2017 return -EINVAL; 2018 2019 /* Set the USB charging mode to internal value */ 2020 mode = toshiba->usbsc_mode_base; 2021 if (state == 0) 2022 mode |= SCI_USB_CHARGE_DISABLED; 2023 else if (state == 1) 2024 mode |= SCI_USB_CHARGE_ALTERNATE; 2025 else if (state == 2) 2026 mode |= SCI_USB_CHARGE_AUTO; 2027 else if (state == 3) 2028 mode |= SCI_USB_CHARGE_TYPICAL; 2029 2030 ret = toshiba_usb_sleep_charge_set(toshiba, mode); 2031 if (ret) 2032 return ret; 2033 2034 return count; 2035 } 2036 static DEVICE_ATTR_RW(usb_sleep_charge); 2037 2038 static ssize_t sleep_functions_on_battery_show(struct device *dev, 2039 struct device_attribute *attr, 2040 char *buf) 2041 { 2042 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2043 u32 state; 2044 int bat_lvl; 2045 int status; 2046 int ret; 2047 int tmp; 2048 2049 ret = toshiba_sleep_functions_status_get(toshiba, &state); 2050 if (ret < 0) 2051 return ret; 2052 2053 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */ 2054 tmp = state & SCI_USB_CHARGE_BAT_MASK; 2055 status = (tmp == 0x4) ? 1 : 0; 2056 /* Determine the battery level set */ 2057 bat_lvl = state >> HCI_MISC_SHIFT; 2058 2059 return sprintf(buf, "%d %d\n", status, bat_lvl); 2060 } 2061 2062 static ssize_t sleep_functions_on_battery_store(struct device *dev, 2063 struct device_attribute *attr, 2064 const char *buf, size_t count) 2065 { 2066 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2067 u32 status; 2068 int value; 2069 int ret; 2070 int tmp; 2071 2072 ret = kstrtoint(buf, 0, &value); 2073 if (ret) 2074 return ret; 2075 2076 /* 2077 * Set the status of the function: 2078 * 0 - Disabled 2079 * 1-100 - Enabled 2080 */ 2081 if (value < 0 || value > 100) 2082 return -EINVAL; 2083 2084 if (value == 0) { 2085 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT; 2086 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF; 2087 } else { 2088 tmp = value << HCI_MISC_SHIFT; 2089 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON; 2090 } 2091 ret = toshiba_sleep_functions_status_set(toshiba, status); 2092 if (ret < 0) 2093 return ret; 2094 2095 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT; 2096 2097 return count; 2098 } 2099 static DEVICE_ATTR_RW(sleep_functions_on_battery); 2100 2101 static ssize_t usb_rapid_charge_show(struct device *dev, 2102 struct device_attribute *attr, char *buf) 2103 { 2104 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2105 u32 state; 2106 int ret; 2107 2108 ret = toshiba_usb_rapid_charge_get(toshiba, &state); 2109 if (ret < 0) 2110 return ret; 2111 2112 return sprintf(buf, "%d\n", state); 2113 } 2114 2115 static ssize_t usb_rapid_charge_store(struct device *dev, 2116 struct device_attribute *attr, 2117 const char *buf, size_t count) 2118 { 2119 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2120 int state; 2121 int ret; 2122 2123 ret = kstrtoint(buf, 0, &state); 2124 if (ret) 2125 return ret; 2126 if (state != 0 && state != 1) 2127 return -EINVAL; 2128 2129 ret = toshiba_usb_rapid_charge_set(toshiba, state); 2130 if (ret) 2131 return ret; 2132 2133 return count; 2134 } 2135 static DEVICE_ATTR_RW(usb_rapid_charge); 2136 2137 static ssize_t usb_sleep_music_show(struct device *dev, 2138 struct device_attribute *attr, char *buf) 2139 { 2140 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2141 u32 state; 2142 int ret; 2143 2144 ret = toshiba_usb_sleep_music_get(toshiba, &state); 2145 if (ret < 0) 2146 return ret; 2147 2148 return sprintf(buf, "%d\n", state); 2149 } 2150 2151 static ssize_t usb_sleep_music_store(struct device *dev, 2152 struct device_attribute *attr, 2153 const char *buf, size_t count) 2154 { 2155 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2156 int state; 2157 int ret; 2158 2159 ret = kstrtoint(buf, 0, &state); 2160 if (ret) 2161 return ret; 2162 if (state != 0 && state != 1) 2163 return -EINVAL; 2164 2165 ret = toshiba_usb_sleep_music_set(toshiba, state); 2166 if (ret) 2167 return ret; 2168 2169 return count; 2170 } 2171 static DEVICE_ATTR_RW(usb_sleep_music); 2172 2173 static ssize_t kbd_function_keys_show(struct device *dev, 2174 struct device_attribute *attr, char *buf) 2175 { 2176 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2177 int mode; 2178 int ret; 2179 2180 ret = toshiba_function_keys_get(toshiba, &mode); 2181 if (ret < 0) 2182 return ret; 2183 2184 return sprintf(buf, "%d\n", mode); 2185 } 2186 2187 static ssize_t kbd_function_keys_store(struct device *dev, 2188 struct device_attribute *attr, 2189 const char *buf, size_t count) 2190 { 2191 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2192 int mode; 2193 int ret; 2194 2195 ret = kstrtoint(buf, 0, &mode); 2196 if (ret) 2197 return ret; 2198 /* 2199 * Check for the function keys mode where: 2200 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12}) 2201 * 1 - Special functions (Opposite of the above setting) 2202 */ 2203 if (mode != 0 && mode != 1) 2204 return -EINVAL; 2205 2206 ret = toshiba_function_keys_set(toshiba, mode); 2207 if (ret) 2208 return ret; 2209 2210 pr_info("Reboot for changes to KBD Function Keys to take effect"); 2211 2212 return count; 2213 } 2214 static DEVICE_ATTR_RW(kbd_function_keys); 2215 2216 static ssize_t panel_power_on_show(struct device *dev, 2217 struct device_attribute *attr, char *buf) 2218 { 2219 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2220 u32 state; 2221 int ret; 2222 2223 ret = toshiba_panel_power_on_get(toshiba, &state); 2224 if (ret < 0) 2225 return ret; 2226 2227 return sprintf(buf, "%d\n", state); 2228 } 2229 2230 static ssize_t panel_power_on_store(struct device *dev, 2231 struct device_attribute *attr, 2232 const char *buf, size_t count) 2233 { 2234 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2235 int state; 2236 int ret; 2237 2238 ret = kstrtoint(buf, 0, &state); 2239 if (ret) 2240 return ret; 2241 if (state != 0 && state != 1) 2242 return -EINVAL; 2243 2244 ret = toshiba_panel_power_on_set(toshiba, state); 2245 if (ret) 2246 return ret; 2247 2248 pr_info("Reboot for changes to Panel Power ON to take effect"); 2249 2250 return count; 2251 } 2252 static DEVICE_ATTR_RW(panel_power_on); 2253 2254 static ssize_t usb_three_show(struct device *dev, 2255 struct device_attribute *attr, char *buf) 2256 { 2257 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2258 u32 state; 2259 int ret; 2260 2261 ret = toshiba_usb_three_get(toshiba, &state); 2262 if (ret < 0) 2263 return ret; 2264 2265 return sprintf(buf, "%d\n", state); 2266 } 2267 2268 static ssize_t usb_three_store(struct device *dev, 2269 struct device_attribute *attr, 2270 const char *buf, size_t count) 2271 { 2272 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2273 int state; 2274 int ret; 2275 2276 ret = kstrtoint(buf, 0, &state); 2277 if (ret) 2278 return ret; 2279 /* 2280 * Check for USB 3 mode where: 2281 * 0 - Disabled (Acts like a USB 2 port, saving power) 2282 * 1 - Enabled 2283 */ 2284 if (state != 0 && state != 1) 2285 return -EINVAL; 2286 2287 ret = toshiba_usb_three_set(toshiba, state); 2288 if (ret) 2289 return ret; 2290 2291 pr_info("Reboot for changes to USB 3 to take effect"); 2292 2293 return count; 2294 } 2295 static DEVICE_ATTR_RW(usb_three); 2296 2297 static ssize_t cooling_method_show(struct device *dev, 2298 struct device_attribute *attr, char *buf) 2299 { 2300 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2301 int state; 2302 int ret; 2303 2304 ret = toshiba_cooling_method_get(toshiba, &state); 2305 if (ret < 0) 2306 return ret; 2307 2308 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method); 2309 } 2310 2311 static ssize_t cooling_method_store(struct device *dev, 2312 struct device_attribute *attr, 2313 const char *buf, size_t count) 2314 { 2315 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev); 2316 int state; 2317 int ret; 2318 2319 ret = kstrtoint(buf, 0, &state); 2320 if (ret) 2321 return ret; 2322 2323 /* 2324 * Check for supported values 2325 * Depending on the laptop model, some only support these two: 2326 * 0 - Maximum Performance 2327 * 1 - Battery Optimized 2328 * 2329 * While some others support all three methods: 2330 * 0 - Maximum Performance 2331 * 1 - Performance 2332 * 2 - Battery Optimized 2333 */ 2334 if (state < 0 || state > toshiba->max_cooling_method) 2335 return -EINVAL; 2336 2337 ret = toshiba_cooling_method_set(toshiba, state); 2338 if (ret) 2339 return ret; 2340 2341 return count; 2342 } 2343 static DEVICE_ATTR_RW(cooling_method); 2344 2345 static struct attribute *toshiba_attributes[] = { 2346 &dev_attr_version.attr, 2347 &dev_attr_fan.attr, 2348 &dev_attr_kbd_backlight_mode.attr, 2349 &dev_attr_kbd_type.attr, 2350 &dev_attr_available_kbd_modes.attr, 2351 &dev_attr_kbd_backlight_timeout.attr, 2352 &dev_attr_touchpad.attr, 2353 &dev_attr_position.attr, 2354 &dev_attr_usb_sleep_charge.attr, 2355 &dev_attr_sleep_functions_on_battery.attr, 2356 &dev_attr_usb_rapid_charge.attr, 2357 &dev_attr_usb_sleep_music.attr, 2358 &dev_attr_kbd_function_keys.attr, 2359 &dev_attr_panel_power_on.attr, 2360 &dev_attr_usb_three.attr, 2361 &dev_attr_cooling_method.attr, 2362 NULL, 2363 }; 2364 2365 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj, 2366 struct attribute *attr, int idx) 2367 { 2368 struct device *dev = container_of(kobj, struct device, kobj); 2369 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev); 2370 bool exists = true; 2371 2372 if (attr == &dev_attr_fan.attr) 2373 exists = (drv->fan_supported) ? true : false; 2374 else if (attr == &dev_attr_kbd_backlight_mode.attr) 2375 exists = (drv->kbd_illum_supported) ? true : false; 2376 else if (attr == &dev_attr_kbd_backlight_timeout.attr) 2377 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false; 2378 else if (attr == &dev_attr_touchpad.attr) 2379 exists = (drv->touchpad_supported) ? true : false; 2380 else if (attr == &dev_attr_position.attr) 2381 exists = (drv->accelerometer_supported) ? true : false; 2382 else if (attr == &dev_attr_usb_sleep_charge.attr) 2383 exists = (drv->usb_sleep_charge_supported) ? true : false; 2384 else if (attr == &dev_attr_sleep_functions_on_battery.attr) 2385 exists = (drv->usb_sleep_charge_supported) ? true : false; 2386 else if (attr == &dev_attr_usb_rapid_charge.attr) 2387 exists = (drv->usb_rapid_charge_supported) ? true : false; 2388 else if (attr == &dev_attr_usb_sleep_music.attr) 2389 exists = (drv->usb_sleep_music_supported) ? true : false; 2390 else if (attr == &dev_attr_kbd_function_keys.attr) 2391 exists = (drv->kbd_function_keys_supported) ? true : false; 2392 else if (attr == &dev_attr_panel_power_on.attr) 2393 exists = (drv->panel_power_on_supported) ? true : false; 2394 else if (attr == &dev_attr_usb_three.attr) 2395 exists = (drv->usb_three_supported) ? true : false; 2396 else if (attr == &dev_attr_cooling_method.attr) 2397 exists = (drv->cooling_method_supported) ? true : false; 2398 2399 return exists ? attr->mode : 0; 2400 } 2401 2402 static struct attribute_group toshiba_attr_group = { 2403 .is_visible = toshiba_sysfs_is_visible, 2404 .attrs = toshiba_attributes, 2405 }; 2406 2407 static void toshiba_acpi_kbd_bl_work(struct work_struct *work) 2408 { 2409 struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev; 2410 2411 /* Update the sysfs entries */ 2412 if (sysfs_update_group(&acpi_dev->dev.kobj, 2413 &toshiba_attr_group)) 2414 pr_err("Unable to update sysfs entries\n"); 2415 2416 /* Emulate the keyboard backlight event */ 2417 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class, 2418 dev_name(&acpi_dev->dev), 2419 0x92, 0); 2420 } 2421 2422 /* 2423 * Misc device 2424 */ 2425 static int toshiba_acpi_smm_bridge(SMMRegisters *regs) 2426 { 2427 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx, 2428 regs->edx, regs->esi, regs->edi }; 2429 u32 out[TCI_WORDS]; 2430 acpi_status status; 2431 2432 status = tci_raw(toshiba_acpi, in, out); 2433 if (ACPI_FAILURE(status)) { 2434 pr_err("ACPI call to query SMM registers failed\n"); 2435 return -EIO; 2436 } 2437 2438 /* Fillout the SMM struct with the TCI call results */ 2439 regs->eax = out[0]; 2440 regs->ebx = out[1]; 2441 regs->ecx = out[2]; 2442 regs->edx = out[3]; 2443 regs->esi = out[4]; 2444 regs->edi = out[5]; 2445 2446 return 0; 2447 } 2448 2449 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd, 2450 unsigned long arg) 2451 { 2452 SMMRegisters __user *argp = (SMMRegisters __user *)arg; 2453 SMMRegisters regs; 2454 int ret; 2455 2456 if (!argp) 2457 return -EINVAL; 2458 2459 switch (cmd) { 2460 case TOSH_SMM: 2461 if (copy_from_user(®s, argp, sizeof(SMMRegisters))) 2462 return -EFAULT; 2463 ret = toshiba_acpi_smm_bridge(®s); 2464 if (ret) 2465 return ret; 2466 if (copy_to_user(argp, ®s, sizeof(SMMRegisters))) 2467 return -EFAULT; 2468 break; 2469 case TOSHIBA_ACPI_SCI: 2470 if (copy_from_user(®s, argp, sizeof(SMMRegisters))) 2471 return -EFAULT; 2472 /* Ensure we are being called with a SCI_{GET, SET} register */ 2473 if (regs.eax != SCI_GET && regs.eax != SCI_SET) 2474 return -EINVAL; 2475 if (!sci_open(toshiba_acpi)) 2476 return -EIO; 2477 ret = toshiba_acpi_smm_bridge(®s); 2478 sci_close(toshiba_acpi); 2479 if (ret) 2480 return ret; 2481 if (copy_to_user(argp, ®s, sizeof(SMMRegisters))) 2482 return -EFAULT; 2483 break; 2484 default: 2485 return -EINVAL; 2486 } 2487 2488 return 0; 2489 } 2490 2491 static const struct file_operations toshiba_acpi_fops = { 2492 .owner = THIS_MODULE, 2493 .unlocked_ioctl = toshiba_acpi_ioctl, 2494 .llseek = noop_llseek, 2495 }; 2496 2497 /* 2498 * WWAN RFKill handlers 2499 */ 2500 static int toshiba_acpi_wwan_set_block(void *data, bool blocked) 2501 { 2502 struct toshiba_acpi_dev *dev = data; 2503 int ret; 2504 2505 ret = toshiba_wireless_status(dev); 2506 if (ret) 2507 return ret; 2508 2509 if (!dev->killswitch) 2510 return 0; 2511 2512 return toshiba_wwan_set(dev, !blocked); 2513 } 2514 2515 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data) 2516 { 2517 struct toshiba_acpi_dev *dev = data; 2518 2519 if (toshiba_wireless_status(dev)) 2520 return; 2521 2522 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); 2523 } 2524 2525 static const struct rfkill_ops wwan_rfk_ops = { 2526 .set_block = toshiba_acpi_wwan_set_block, 2527 .poll = toshiba_acpi_wwan_poll, 2528 }; 2529 2530 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev) 2531 { 2532 int ret = toshiba_wireless_status(dev); 2533 2534 if (ret) 2535 return ret; 2536 2537 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN", 2538 &dev->acpi_dev->dev, 2539 RFKILL_TYPE_WWAN, 2540 &wwan_rfk_ops, 2541 dev); 2542 if (!dev->wwan_rfk) { 2543 pr_err("Unable to allocate WWAN rfkill device\n"); 2544 return -ENOMEM; 2545 } 2546 2547 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); 2548 2549 ret = rfkill_register(dev->wwan_rfk); 2550 if (ret) { 2551 pr_err("Unable to register WWAN rfkill device\n"); 2552 rfkill_destroy(dev->wwan_rfk); 2553 } 2554 2555 return ret; 2556 } 2557 2558 /* 2559 * Hotkeys 2560 */ 2561 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev) 2562 { 2563 acpi_status status; 2564 u32 result; 2565 2566 status = acpi_evaluate_object(dev->acpi_dev->handle, 2567 "ENAB", NULL, NULL); 2568 if (ACPI_FAILURE(status)) 2569 return -ENODEV; 2570 2571 /* 2572 * Enable the "Special Functions" mode only if they are 2573 * supported and if they are activated. 2574 */ 2575 if (dev->kbd_function_keys_supported && dev->special_functions) 2576 result = hci_write(dev, HCI_HOTKEY_EVENT, 2577 HCI_HOTKEY_SPECIAL_FUNCTIONS); 2578 else 2579 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE); 2580 2581 if (result == TOS_FAILURE) 2582 return -EIO; 2583 else if (result == TOS_NOT_SUPPORTED) 2584 return -ENODEV; 2585 2586 return 0; 2587 } 2588 2589 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str, 2590 struct serio *port) 2591 { 2592 if (str & I8042_STR_AUXDATA) 2593 return false; 2594 2595 if (unlikely(data == 0xe0)) 2596 return false; 2597 2598 if ((data & 0x7f) == TOS1900_FN_SCAN) { 2599 schedule_work(&toshiba_acpi->hotkey_work); 2600 return true; 2601 } 2602 2603 return false; 2604 } 2605 2606 static void toshiba_acpi_hotkey_work(struct work_struct *work) 2607 { 2608 acpi_handle ec_handle = ec_get_handle(); 2609 acpi_status status; 2610 2611 if (!ec_handle) 2612 return; 2613 2614 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL); 2615 if (ACPI_FAILURE(status)) 2616 pr_err("ACPI NTFY method execution failed\n"); 2617 } 2618 2619 /* 2620 * Returns hotkey scancode, or < 0 on failure. 2621 */ 2622 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev) 2623 { 2624 unsigned long long value; 2625 acpi_status status; 2626 2627 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO", 2628 NULL, &value); 2629 if (ACPI_FAILURE(status)) { 2630 pr_err("ACPI INFO method execution failed\n"); 2631 return -EIO; 2632 } 2633 2634 return value; 2635 } 2636 2637 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev, 2638 int scancode) 2639 { 2640 if (scancode == 0x100) 2641 return; 2642 2643 /* Act on key press; ignore key release */ 2644 if (scancode & 0x80) 2645 return; 2646 2647 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true)) 2648 pr_info("Unknown key %x\n", scancode); 2649 } 2650 2651 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev) 2652 { 2653 if (dev->info_supported) { 2654 int scancode = toshiba_acpi_query_hotkey(dev); 2655 2656 if (scancode < 0) { 2657 pr_err("Failed to query hotkey event\n"); 2658 } else if (scancode != 0) { 2659 toshiba_acpi_report_hotkey(dev, scancode); 2660 dev->key_event_valid = 1; 2661 dev->last_key_event = scancode; 2662 } 2663 } else if (dev->system_event_supported) { 2664 u32 result; 2665 u32 value; 2666 int retries = 3; 2667 2668 do { 2669 result = hci_read(dev, HCI_SYSTEM_EVENT, &value); 2670 switch (result) { 2671 case TOS_SUCCESS: 2672 toshiba_acpi_report_hotkey(dev, (int)value); 2673 dev->key_event_valid = 1; 2674 dev->last_key_event = value; 2675 break; 2676 case TOS_NOT_SUPPORTED: 2677 /* 2678 * This is a workaround for an unresolved 2679 * issue on some machines where system events 2680 * sporadically become disabled. 2681 */ 2682 result = hci_write(dev, HCI_SYSTEM_EVENT, 1); 2683 if (result == TOS_SUCCESS) 2684 pr_notice("Re-enabled hotkeys\n"); 2685 /* Fall through */ 2686 default: 2687 retries--; 2688 break; 2689 } 2690 } while (retries && result != TOS_FIFO_EMPTY); 2691 } 2692 } 2693 2694 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev) 2695 { 2696 const struct key_entry *keymap = toshiba_acpi_keymap; 2697 acpi_handle ec_handle; 2698 int error; 2699 2700 if (disable_hotkeys) { 2701 pr_info("Hotkeys disabled by module parameter\n"); 2702 return 0; 2703 } 2704 2705 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) { 2706 pr_info("WMI event detected, hotkeys will not be monitored\n"); 2707 return 0; 2708 } 2709 2710 error = toshiba_acpi_enable_hotkeys(dev); 2711 if (error) 2712 return error; 2713 2714 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type)) 2715 pr_notice("Unable to query Hotkey Event Type\n"); 2716 2717 dev->hotkey_dev = input_allocate_device(); 2718 if (!dev->hotkey_dev) 2719 return -ENOMEM; 2720 2721 dev->hotkey_dev->name = "Toshiba input device"; 2722 dev->hotkey_dev->phys = "toshiba_acpi/input0"; 2723 dev->hotkey_dev->id.bustype = BUS_HOST; 2724 2725 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 || 2726 !dev->kbd_function_keys_supported) 2727 keymap = toshiba_acpi_keymap; 2728 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 || 2729 dev->kbd_function_keys_supported) 2730 keymap = toshiba_acpi_alt_keymap; 2731 else 2732 pr_info("Unknown event type received %x\n", 2733 dev->hotkey_event_type); 2734 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL); 2735 if (error) 2736 goto err_free_dev; 2737 2738 /* 2739 * For some machines the SCI responsible for providing hotkey 2740 * notification doesn't fire. We can trigger the notification 2741 * whenever the Fn key is pressed using the NTFY method, if 2742 * supported, so if it's present set up an i8042 key filter 2743 * for this purpose. 2744 */ 2745 ec_handle = ec_get_handle(); 2746 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) { 2747 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work); 2748 2749 error = i8042_install_filter(toshiba_acpi_i8042_filter); 2750 if (error) { 2751 pr_err("Error installing key filter\n"); 2752 goto err_free_keymap; 2753 } 2754 2755 dev->ntfy_supported = 1; 2756 } 2757 2758 /* 2759 * Determine hotkey query interface. Prefer using the INFO 2760 * method when it is available. 2761 */ 2762 if (acpi_has_method(dev->acpi_dev->handle, "INFO")) 2763 dev->info_supported = 1; 2764 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS) 2765 dev->system_event_supported = 1; 2766 2767 if (!dev->info_supported && !dev->system_event_supported) { 2768 pr_warn("No hotkey query interface found\n"); 2769 goto err_remove_filter; 2770 } 2771 2772 error = input_register_device(dev->hotkey_dev); 2773 if (error) { 2774 pr_info("Unable to register input device\n"); 2775 goto err_remove_filter; 2776 } 2777 2778 return 0; 2779 2780 err_remove_filter: 2781 if (dev->ntfy_supported) 2782 i8042_remove_filter(toshiba_acpi_i8042_filter); 2783 err_free_keymap: 2784 sparse_keymap_free(dev->hotkey_dev); 2785 err_free_dev: 2786 input_free_device(dev->hotkey_dev); 2787 dev->hotkey_dev = NULL; 2788 return error; 2789 } 2790 2791 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev) 2792 { 2793 struct backlight_properties props; 2794 int brightness; 2795 int ret; 2796 2797 /* 2798 * Some machines don't support the backlight methods at all, and 2799 * others support it read-only. Either of these is pretty useless, 2800 * so only register the backlight device if the backlight method 2801 * supports both reads and writes. 2802 */ 2803 brightness = __get_lcd_brightness(dev); 2804 if (brightness < 0) 2805 return 0; 2806 /* 2807 * If transflective backlight is supported and the brightness is zero 2808 * (lowest brightness level), the set_lcd_brightness function will 2809 * activate the transflective backlight, making the LCD appear to be 2810 * turned off, simply increment the brightness level to avoid that. 2811 */ 2812 if (dev->tr_backlight_supported && brightness == 0) 2813 brightness++; 2814 ret = set_lcd_brightness(dev, brightness); 2815 if (ret) { 2816 pr_debug("Backlight method is read-only, disabling backlight support\n"); 2817 return 0; 2818 } 2819 2820 /* 2821 * Tell acpi-video-detect code to prefer vendor backlight on all 2822 * systems with transflective backlight and on dmi matched systems. 2823 */ 2824 if (dev->tr_backlight_supported || 2825 dmi_check_system(toshiba_vendor_backlight_dmi)) 2826 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor); 2827 2828 if (acpi_video_get_backlight_type() != acpi_backlight_vendor) 2829 return 0; 2830 2831 memset(&props, 0, sizeof(props)); 2832 props.type = BACKLIGHT_PLATFORM; 2833 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1; 2834 2835 /* Adding an extra level and having 0 change to transflective mode */ 2836 if (dev->tr_backlight_supported) 2837 props.max_brightness++; 2838 2839 dev->backlight_dev = backlight_device_register("toshiba", 2840 &dev->acpi_dev->dev, 2841 dev, 2842 &toshiba_backlight_data, 2843 &props); 2844 if (IS_ERR(dev->backlight_dev)) { 2845 ret = PTR_ERR(dev->backlight_dev); 2846 pr_err("Could not register toshiba backlight device\n"); 2847 dev->backlight_dev = NULL; 2848 return ret; 2849 } 2850 2851 dev->backlight_dev->props.brightness = brightness; 2852 return 0; 2853 } 2854 2855 static void print_supported_features(struct toshiba_acpi_dev *dev) 2856 { 2857 pr_info("Supported laptop features:"); 2858 2859 if (dev->hotkey_dev) 2860 pr_cont(" hotkeys"); 2861 if (dev->backlight_dev) 2862 pr_cont(" backlight"); 2863 if (dev->video_supported) 2864 pr_cont(" video-out"); 2865 if (dev->fan_supported) 2866 pr_cont(" fan"); 2867 if (dev->tr_backlight_supported) 2868 pr_cont(" transflective-backlight"); 2869 if (dev->illumination_supported) 2870 pr_cont(" illumination"); 2871 if (dev->kbd_illum_supported) 2872 pr_cont(" keyboard-backlight"); 2873 if (dev->touchpad_supported) 2874 pr_cont(" touchpad"); 2875 if (dev->eco_supported) 2876 pr_cont(" eco-led"); 2877 if (dev->accelerometer_supported) 2878 pr_cont(" accelerometer-axes"); 2879 if (dev->usb_sleep_charge_supported) 2880 pr_cont(" usb-sleep-charge"); 2881 if (dev->usb_rapid_charge_supported) 2882 pr_cont(" usb-rapid-charge"); 2883 if (dev->usb_sleep_music_supported) 2884 pr_cont(" usb-sleep-music"); 2885 if (dev->kbd_function_keys_supported) 2886 pr_cont(" special-function-keys"); 2887 if (dev->panel_power_on_supported) 2888 pr_cont(" panel-power-on"); 2889 if (dev->usb_three_supported) 2890 pr_cont(" usb3"); 2891 if (dev->wwan_supported) 2892 pr_cont(" wwan"); 2893 if (dev->cooling_method_supported) 2894 pr_cont(" cooling-method"); 2895 2896 pr_cont("\n"); 2897 } 2898 2899 static int toshiba_acpi_remove(struct acpi_device *acpi_dev) 2900 { 2901 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev); 2902 2903 misc_deregister(&dev->miscdev); 2904 2905 remove_toshiba_proc_entries(dev); 2906 2907 if (dev->sysfs_created) 2908 sysfs_remove_group(&dev->acpi_dev->dev.kobj, 2909 &toshiba_attr_group); 2910 2911 if (dev->ntfy_supported) { 2912 i8042_remove_filter(toshiba_acpi_i8042_filter); 2913 cancel_work_sync(&dev->hotkey_work); 2914 } 2915 2916 if (dev->hotkey_dev) { 2917 input_unregister_device(dev->hotkey_dev); 2918 sparse_keymap_free(dev->hotkey_dev); 2919 } 2920 2921 backlight_device_unregister(dev->backlight_dev); 2922 2923 if (dev->illumination_led_registered) 2924 led_classdev_unregister(&dev->led_dev); 2925 2926 if (dev->kbd_led_registered) 2927 led_classdev_unregister(&dev->kbd_led); 2928 2929 if (dev->eco_led_registered) 2930 led_classdev_unregister(&dev->eco_led); 2931 2932 if (dev->wwan_rfk) { 2933 rfkill_unregister(dev->wwan_rfk); 2934 rfkill_destroy(dev->wwan_rfk); 2935 } 2936 2937 if (toshiba_acpi) 2938 toshiba_acpi = NULL; 2939 2940 kfree(dev); 2941 2942 return 0; 2943 } 2944 2945 static const char *find_hci_method(acpi_handle handle) 2946 { 2947 if (acpi_has_method(handle, "GHCI")) 2948 return "GHCI"; 2949 2950 if (acpi_has_method(handle, "SPFC")) 2951 return "SPFC"; 2952 2953 return NULL; 2954 } 2955 2956 static int toshiba_acpi_add(struct acpi_device *acpi_dev) 2957 { 2958 struct toshiba_acpi_dev *dev; 2959 const char *hci_method; 2960 u32 dummy; 2961 int ret = 0; 2962 2963 if (toshiba_acpi) 2964 return -EBUSY; 2965 2966 pr_info("Toshiba Laptop ACPI Extras version %s\n", 2967 TOSHIBA_ACPI_VERSION); 2968 2969 hci_method = find_hci_method(acpi_dev->handle); 2970 if (!hci_method) { 2971 pr_err("HCI interface not found\n"); 2972 return -ENODEV; 2973 } 2974 2975 dev = kzalloc(sizeof(*dev), GFP_KERNEL); 2976 if (!dev) 2977 return -ENOMEM; 2978 dev->acpi_dev = acpi_dev; 2979 dev->method_hci = hci_method; 2980 dev->miscdev.minor = MISC_DYNAMIC_MINOR; 2981 dev->miscdev.name = "toshiba_acpi"; 2982 dev->miscdev.fops = &toshiba_acpi_fops; 2983 2984 ret = misc_register(&dev->miscdev); 2985 if (ret) { 2986 pr_err("Failed to register miscdevice\n"); 2987 kfree(dev); 2988 return ret; 2989 } 2990 2991 acpi_dev->driver_data = dev; 2992 dev_set_drvdata(&acpi_dev->dev, dev); 2993 2994 /* Query the BIOS for supported features */ 2995 2996 /* 2997 * The "Special Functions" are always supported by the laptops 2998 * with the new keyboard layout, query for its presence to help 2999 * determine the keymap layout to use. 3000 */ 3001 ret = toshiba_function_keys_get(dev, &dev->special_functions); 3002 dev->kbd_function_keys_supported = !ret; 3003 3004 dev->hotkey_event_type = 0; 3005 if (toshiba_acpi_setup_keyboard(dev)) 3006 pr_info("Unable to activate hotkeys\n"); 3007 3008 /* Determine whether or not BIOS supports transflective backlight */ 3009 ret = get_tr_backlight_status(dev, &dummy); 3010 dev->tr_backlight_supported = !ret; 3011 3012 ret = toshiba_acpi_setup_backlight(dev); 3013 if (ret) 3014 goto error; 3015 3016 toshiba_illumination_available(dev); 3017 if (dev->illumination_supported) { 3018 dev->led_dev.name = "toshiba::illumination"; 3019 dev->led_dev.max_brightness = 1; 3020 dev->led_dev.brightness_set = toshiba_illumination_set; 3021 dev->led_dev.brightness_get = toshiba_illumination_get; 3022 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev)) 3023 dev->illumination_led_registered = true; 3024 } 3025 3026 toshiba_eco_mode_available(dev); 3027 if (dev->eco_supported) { 3028 dev->eco_led.name = "toshiba::eco_mode"; 3029 dev->eco_led.max_brightness = 1; 3030 dev->eco_led.brightness_set = toshiba_eco_mode_set_status; 3031 dev->eco_led.brightness_get = toshiba_eco_mode_get_status; 3032 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led)) 3033 dev->eco_led_registered = true; 3034 } 3035 3036 toshiba_kbd_illum_available(dev); 3037 /* 3038 * Only register the LED if KBD illumination is supported 3039 * and the keyboard backlight operation mode is set to FN-Z 3040 */ 3041 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) { 3042 dev->kbd_led.name = "toshiba::kbd_backlight"; 3043 dev->kbd_led.max_brightness = 1; 3044 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set; 3045 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get; 3046 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led)) 3047 dev->kbd_led_registered = true; 3048 } 3049 3050 ret = toshiba_touchpad_get(dev, &dummy); 3051 dev->touchpad_supported = !ret; 3052 3053 toshiba_accelerometer_available(dev); 3054 3055 toshiba_usb_sleep_charge_available(dev); 3056 3057 ret = toshiba_usb_rapid_charge_get(dev, &dummy); 3058 dev->usb_rapid_charge_supported = !ret; 3059 3060 ret = toshiba_usb_sleep_music_get(dev, &dummy); 3061 dev->usb_sleep_music_supported = !ret; 3062 3063 ret = toshiba_panel_power_on_get(dev, &dummy); 3064 dev->panel_power_on_supported = !ret; 3065 3066 ret = toshiba_usb_three_get(dev, &dummy); 3067 dev->usb_three_supported = !ret; 3068 3069 ret = get_video_status(dev, &dummy); 3070 dev->video_supported = !ret; 3071 3072 ret = get_fan_status(dev, &dummy); 3073 dev->fan_supported = !ret; 3074 3075 toshiba_wwan_available(dev); 3076 if (dev->wwan_supported) 3077 toshiba_acpi_setup_wwan_rfkill(dev); 3078 3079 toshiba_cooling_method_available(dev); 3080 3081 print_supported_features(dev); 3082 3083 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj, 3084 &toshiba_attr_group); 3085 if (ret) { 3086 dev->sysfs_created = 0; 3087 goto error; 3088 } 3089 dev->sysfs_created = !ret; 3090 3091 create_toshiba_proc_entries(dev); 3092 3093 toshiba_acpi = dev; 3094 3095 return 0; 3096 3097 error: 3098 toshiba_acpi_remove(acpi_dev); 3099 return ret; 3100 } 3101 3102 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event) 3103 { 3104 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev); 3105 3106 switch (event) { 3107 case 0x80: /* Hotkeys and some system events */ 3108 /* 3109 * Machines with this WMI GUID aren't supported due to bugs in 3110 * their AML. 3111 * 3112 * Return silently to avoid triggering a netlink event. 3113 */ 3114 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) 3115 return; 3116 toshiba_acpi_process_hotkeys(dev); 3117 break; 3118 case 0x81: /* Dock events */ 3119 case 0x82: 3120 case 0x83: 3121 pr_info("Dock event received %x\n", event); 3122 break; 3123 case 0x88: /* Thermal events */ 3124 pr_info("Thermal event received\n"); 3125 break; 3126 case 0x8f: /* LID closed */ 3127 case 0x90: /* LID is closed and Dock has been ejected */ 3128 break; 3129 case 0x8c: /* SATA power events */ 3130 case 0x8b: 3131 pr_info("SATA power event received %x\n", event); 3132 break; 3133 case 0x92: /* Keyboard backlight mode changed */ 3134 toshiba_acpi->kbd_event_generated = true; 3135 /* Update sysfs entries */ 3136 if (sysfs_update_group(&acpi_dev->dev.kobj, 3137 &toshiba_attr_group)) 3138 pr_err("Unable to update sysfs entries\n"); 3139 break; 3140 case 0x85: /* Unknown */ 3141 case 0x8d: /* Unknown */ 3142 case 0x8e: /* Unknown */ 3143 case 0x94: /* Unknown */ 3144 case 0x95: /* Unknown */ 3145 default: 3146 pr_info("Unknown event received %x\n", event); 3147 break; 3148 } 3149 3150 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class, 3151 dev_name(&acpi_dev->dev), 3152 event, (event == 0x80) ? 3153 dev->last_key_event : 0); 3154 } 3155 3156 #ifdef CONFIG_PM_SLEEP 3157 static int toshiba_acpi_suspend(struct device *device) 3158 { 3159 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device)); 3160 3161 if (dev->hotkey_dev) { 3162 u32 result; 3163 3164 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE); 3165 if (result != TOS_SUCCESS) 3166 pr_info("Unable to disable hotkeys\n"); 3167 } 3168 3169 return 0; 3170 } 3171 3172 static int toshiba_acpi_resume(struct device *device) 3173 { 3174 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device)); 3175 3176 if (dev->hotkey_dev) { 3177 if (toshiba_acpi_enable_hotkeys(dev)) 3178 pr_info("Unable to re-enable hotkeys\n"); 3179 } 3180 3181 if (dev->wwan_rfk) { 3182 if (!toshiba_wireless_status(dev)) 3183 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch); 3184 } 3185 3186 return 0; 3187 } 3188 #endif 3189 3190 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm, 3191 toshiba_acpi_suspend, toshiba_acpi_resume); 3192 3193 static struct acpi_driver toshiba_acpi_driver = { 3194 .name = "Toshiba ACPI driver", 3195 .owner = THIS_MODULE, 3196 .ids = toshiba_device_ids, 3197 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, 3198 .ops = { 3199 .add = toshiba_acpi_add, 3200 .remove = toshiba_acpi_remove, 3201 .notify = toshiba_acpi_notify, 3202 }, 3203 .drv.pm = &toshiba_acpi_pm, 3204 }; 3205 3206 static int __init toshiba_acpi_init(void) 3207 { 3208 int ret; 3209 3210 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir); 3211 if (!toshiba_proc_dir) { 3212 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n"); 3213 return -ENODEV; 3214 } 3215 3216 ret = acpi_bus_register_driver(&toshiba_acpi_driver); 3217 if (ret) { 3218 pr_err("Failed to register ACPI driver: %d\n", ret); 3219 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); 3220 } 3221 3222 return ret; 3223 } 3224 3225 static void __exit toshiba_acpi_exit(void) 3226 { 3227 acpi_bus_unregister_driver(&toshiba_acpi_driver); 3228 if (toshiba_proc_dir) 3229 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir); 3230 } 3231 3232 module_init(toshiba_acpi_init); 3233 module_exit(toshiba_acpi_exit); 3234