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