?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
workqueue: Make worker_attach/detach_pool() update worker->pool
[linux/fpc-iii.git] / drivers / platform / x86 / toshiba_acpi.c
blobe8d058c5ef21c47bab8d1c76994bf03585282b37
1 /*
2 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
3 *
4 * Copyright (C) 2002-2004 John Belmonte
5 * Copyright (C) 2008 Philip Langdale
6 * Copyright (C) 2010 Pierre Ducroquet
7 * Copyright (C) 2014-2016 Azael Avalos
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * The full GNU General Public License is included in this distribution in
20 * the file called "COPYING".
21 *
22 * The devolpment page for this driver is located at
23 * http://memebeam.org/toys/ToshibaAcpiDriver.
24 *
25 * Credits:
26 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
27 * engineering the Windows drivers
28 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
29 * Rob Miller - TV out and hotkeys help
30 */
31
32 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
33
34 #define TOSHIBA_ACPI_VERSION "0.24"
35 #define PROC_INTERFACE_VERSION 1
36
37 #include <linux/kernel.h>
38 #include <linux/module.h>
39 #include <linux/moduleparam.h>
40 #include <linux/init.h>
41 #include <linux/types.h>
42 #include <linux/proc_fs.h>
43 #include <linux/seq_file.h>
44 #include <linux/backlight.h>
45 #include <linux/input.h>
46 #include <linux/input/sparse-keymap.h>
47 #include <linux/leds.h>
48 #include <linux/slab.h>
49 #include <linux/workqueue.h>
50 #include <linux/i8042.h>
51 #include <linux/acpi.h>
52 #include <linux/dmi.h>
53 #include <linux/uaccess.h>
54 #include <linux/miscdevice.h>
55 #include <linux/rfkill.h>
56 #include <linux/iio/iio.h>
57 #include <linux/toshiba.h>
58 #include <acpi/video.h>
59
60 MODULE_AUTHOR("John Belmonte");
61 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
62 MODULE_LICENSE("GPL");
63
64 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
65
66 /* Scan code for Fn key on TOS1900 models */
67 #define TOS1900_FN_SCAN 0x6e
68
69 /* Toshiba ACPI method paths */
70 #define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
71
72 /*
73 * The Toshiba configuration interface is composed of the HCI and the SCI,
74 * which are defined as follows:
75 *
76 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
77 * be uniform across all their models. Ideally we would just call
78 * dedicated ACPI methods instead of using this primitive interface.
79 * However the ACPI methods seem to be incomplete in some areas (for
80 * example they allow setting, but not reading, the LCD brightness value),
81 * so this is still useful.
82 *
83 * SCI stands for "System Configuration Interface" which aim is to
84 * conceal differences in hardware between different models.
85 */
86
87 #define TCI_WORDS 6
88
89 /* Operations */
90 #define HCI_SET 0xff00
91 #define HCI_GET 0xfe00
92 #define SCI_OPEN 0xf100
93 #define SCI_CLOSE 0xf200
94 #define SCI_GET 0xf300
95 #define SCI_SET 0xf400
96
97 /* Return codes */
98 #define TOS_SUCCESS 0x0000
99 #define TOS_SUCCESS2 0x0001
100 #define TOS_OPEN_CLOSE_OK 0x0044
101 #define TOS_FAILURE 0x1000
102 #define TOS_NOT_SUPPORTED 0x8000
103 #define TOS_ALREADY_OPEN 0x8100
104 #define TOS_NOT_OPENED 0x8200
105 #define TOS_INPUT_DATA_ERROR 0x8300
106 #define TOS_WRITE_PROTECTED 0x8400
107 #define TOS_NOT_PRESENT 0x8600
108 #define TOS_FIFO_EMPTY 0x8c00
109 #define TOS_DATA_NOT_AVAILABLE 0x8d20
110 #define TOS_NOT_INITIALIZED 0x8d50
111 #define TOS_NOT_INSTALLED 0x8e00
112
113 /* Registers */
114 #define HCI_FAN 0x0004
115 #define HCI_TR_BACKLIGHT 0x0005
116 #define HCI_SYSTEM_EVENT 0x0016
117 #define HCI_VIDEO_OUT 0x001c
118 #define HCI_HOTKEY_EVENT 0x001e
119 #define HCI_LCD_BRIGHTNESS 0x002a
120 #define HCI_WIRELESS 0x0056
121 #define HCI_ACCELEROMETER 0x006d
122 #define HCI_COOLING_METHOD 0x007f
123 #define HCI_KBD_ILLUMINATION 0x0095
124 #define HCI_ECO_MODE 0x0097
125 #define HCI_ACCELEROMETER2 0x00a6
126 #define HCI_SYSTEM_INFO 0xc000
127 #define SCI_PANEL_POWER_ON 0x010d
128 #define SCI_ILLUMINATION 0x014e
129 #define SCI_USB_SLEEP_CHARGE 0x0150
130 #define SCI_KBD_ILLUM_STATUS 0x015c
131 #define SCI_USB_SLEEP_MUSIC 0x015e
132 #define SCI_USB_THREE 0x0169
133 #define SCI_TOUCHPAD 0x050e
134 #define SCI_KBD_FUNCTION_KEYS 0x0522
135
136 /* Field definitions */
137 #define HCI_ACCEL_MASK 0x7fff
138 #define HCI_ACCEL_DIRECTION_MASK 0x8000
139 #define HCI_HOTKEY_DISABLE 0x0b
140 #define HCI_HOTKEY_ENABLE 0x09
141 #define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
142 #define HCI_LCD_BRIGHTNESS_BITS 3
143 #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
144 #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
145 #define HCI_MISC_SHIFT 0x10
146 #define HCI_SYSTEM_TYPE1 0x10
147 #define HCI_SYSTEM_TYPE2 0x11
148 #define HCI_VIDEO_OUT_LCD 0x1
149 #define HCI_VIDEO_OUT_CRT 0x2
150 #define HCI_VIDEO_OUT_TV 0x4
151 #define SCI_KBD_MODE_MASK 0x1f
152 #define SCI_KBD_MODE_FNZ 0x1
153 #define SCI_KBD_MODE_AUTO 0x2
154 #define SCI_KBD_MODE_ON 0x8
155 #define SCI_KBD_MODE_OFF 0x10
156 #define SCI_KBD_TIME_MAX 0x3c001a
157 #define HCI_WIRELESS_STATUS 0x1
158 #define HCI_WIRELESS_WWAN 0x3
159 #define HCI_WIRELESS_WWAN_STATUS 0x2000
160 #define HCI_WIRELESS_WWAN_POWER 0x4000
161 #define SCI_USB_CHARGE_MODE_MASK 0xff
162 #define SCI_USB_CHARGE_DISABLED 0x00
163 #define SCI_USB_CHARGE_ALTERNATE 0x09
164 #define SCI_USB_CHARGE_TYPICAL 0x11
165 #define SCI_USB_CHARGE_AUTO 0x21
166 #define SCI_USB_CHARGE_BAT_MASK 0x7
167 #define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
168 #define SCI_USB_CHARGE_BAT_LVL_ON 0x4
169 #define SCI_USB_CHARGE_BAT_LVL 0x0200
170 #define SCI_USB_CHARGE_RAPID_DSP 0x0300
171
172 struct toshiba_acpi_dev {
173 struct acpi_device *acpi_dev;
174 const char *method_hci;
175 struct input_dev *hotkey_dev;
176 struct work_struct hotkey_work;
177 struct backlight_device *backlight_dev;
178 struct led_classdev led_dev;
179 struct led_classdev kbd_led;
180 struct led_classdev eco_led;
181 struct miscdevice miscdev;
182 struct rfkill *wwan_rfk;
183 struct iio_dev *indio_dev;
184
185 int force_fan;
186 int last_key_event;
187 int key_event_valid;
188 int kbd_type;
189 int kbd_mode;
190 int kbd_time;
191 int usbsc_bat_level;
192 int usbsc_mode_base;
193 int hotkey_event_type;
194 int max_cooling_method;
195
196 unsigned int illumination_supported:1;
197 unsigned int video_supported:1;
198 unsigned int fan_supported:1;
199 unsigned int system_event_supported:1;
200 unsigned int ntfy_supported:1;
201 unsigned int info_supported:1;
202 unsigned int tr_backlight_supported:1;
203 unsigned int kbd_illum_supported:1;
204 unsigned int touchpad_supported:1;
205 unsigned int eco_supported:1;
206 unsigned int accelerometer_supported:1;
207 unsigned int usb_sleep_charge_supported:1;
208 unsigned int usb_rapid_charge_supported:1;
209 unsigned int usb_sleep_music_supported:1;
210 unsigned int kbd_function_keys_supported:1;
211 unsigned int panel_power_on_supported:1;
212 unsigned int usb_three_supported:1;
213 unsigned int wwan_supported:1;
214 unsigned int cooling_method_supported:1;
215 unsigned int sysfs_created:1;
216 unsigned int special_functions;
217
218 bool kbd_event_generated;
219 bool kbd_led_registered;
220 bool illumination_led_registered;
221 bool eco_led_registered;
222 bool killswitch;
223 };
224
225 static struct toshiba_acpi_dev *toshiba_acpi;
226
227 static bool disable_hotkeys;
228 module_param(disable_hotkeys, bool, 0444);
229 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
230
231 static const struct acpi_device_id toshiba_device_ids[] = {
232 {"TOS6200", 0},
233 {"TOS6207", 0},
234 {"TOS6208", 0},
235 {"TOS1900", 0},
236 {"", 0},
237 };
238 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
239
240 static const struct key_entry toshiba_acpi_keymap[] = {
241 { KE_KEY, 0x9e, { KEY_RFKILL } },
242 { KE_KEY, 0x101, { KEY_MUTE } },
243 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
244 { KE_KEY, 0x103, { KEY_ZOOMIN } },
245 { KE_KEY, 0x10f, { KEY_TAB } },
246 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
247 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
248 { KE_KEY, 0x13b, { KEY_COFFEE } },
249 { KE_KEY, 0x13c, { KEY_BATTERY } },
250 { KE_KEY, 0x13d, { KEY_SLEEP } },
251 { KE_KEY, 0x13e, { KEY_SUSPEND } },
252 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
253 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
254 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
255 { KE_KEY, 0x142, { KEY_WLAN } },
256 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
257 { KE_KEY, 0x17f, { KEY_FN } },
258 { KE_KEY, 0xb05, { KEY_PROG2 } },
259 { KE_KEY, 0xb06, { KEY_WWW } },
260 { KE_KEY, 0xb07, { KEY_MAIL } },
261 { KE_KEY, 0xb30, { KEY_STOP } },
262 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
263 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
264 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
265 { KE_KEY, 0xb5a, { KEY_MEDIA } },
266 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
267 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
268 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
269 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
270 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
271 { KE_END, 0 },
272 };
273
274 static const struct key_entry toshiba_acpi_alt_keymap[] = {
275 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
276 { KE_KEY, 0x103, { KEY_ZOOMIN } },
277 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
278 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
279 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
280 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
281 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
282 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
283 { KE_KEY, 0x157, { KEY_MUTE } },
284 { KE_KEY, 0x158, { KEY_WLAN } },
285 { KE_END, 0 },
286 };
287
288 /*
289 * List of models which have a broken acpi-video backlight interface and thus
290 * need to use the toshiba (vendor) interface instead.
291 */
292 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
293 {}
294 };
295
296 /*
297 * Utility
298 */
299
300 static inline void _set_bit(u32 *word, u32 mask, int value)
301 {
302 *word = (*word & ~mask) | (mask * value);
303 }
304
305 /*
306 * ACPI interface wrappers
307 */
308
309 static int write_acpi_int(const char *methodName, int val)
310 {
311 acpi_status status;
312
313 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
314 return (status == AE_OK) ? 0 : -EIO;
315 }
316
317 /*
318 * Perform a raw configuration call. Here we don't care about input or output
319 * buffer format.
320 */
321 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
322 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
323 {
324 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
325 struct acpi_object_list params;
326 struct acpi_buffer results;
327 acpi_status status;
328 int i;
329
330 params.count = TCI_WORDS;
331 params.pointer = in_objs;
332 for (i = 0; i < TCI_WORDS; ++i) {
333 in_objs[i].type = ACPI_TYPE_INTEGER;
334 in_objs[i].integer.value = in[i];
335 }
336
337 results.length = sizeof(out_objs);
338 results.pointer = out_objs;
339
340 status = acpi_evaluate_object(dev->acpi_dev->handle,
341 (char *)dev->method_hci, &params,
342 &results);
343 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
344 for (i = 0; i < out_objs->package.count; ++i)
345 out[i] = out_objs->package.elements[i].integer.value;
346 }
347
348 return status;
349 }
350
351 /*
352 * Common hci tasks
353 *
354 * In addition to the ACPI status, the HCI system returns a result which
355 * may be useful (such as "not supported").
356 */
357
358 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
359 {
360 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
361 u32 out[TCI_WORDS];
362 acpi_status status = tci_raw(dev, in, out);
363
364 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
365 }
366
367 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
368 {
369 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
370 u32 out[TCI_WORDS];
371 acpi_status status = tci_raw(dev, in, out);
372
373 if (ACPI_FAILURE(status))
374 return TOS_FAILURE;
375
376 *out1 = out[2];
377
378 return out[0];
379 }
380
381 /*
382 * Common sci tasks
383 */
384
385 static int sci_open(struct toshiba_acpi_dev *dev)
386 {
387 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
388 u32 out[TCI_WORDS];
389 acpi_status status = tci_raw(dev, in, out);
390
391 if (ACPI_FAILURE(status)) {
392 pr_err("ACPI call to open SCI failed\n");
393 return 0;
394 }
395
396 if (out[0] == TOS_OPEN_CLOSE_OK) {
397 return 1;
398 } else if (out[0] == TOS_ALREADY_OPEN) {
399 pr_info("Toshiba SCI already opened\n");
400 return 1;
401 } else if (out[0] == TOS_NOT_SUPPORTED) {
402 /*
403 * Some BIOSes do not have the SCI open/close functions
404 * implemented and return 0x8000 (Not Supported), failing to
405 * register some supported features.
406 *
407 * Simply return 1 if we hit those affected laptops to make the
408 * supported features work.
409 *
410 * In the case that some laptops really do not support the SCI,
411 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
412 * and thus, not registering support for the queried feature.
413 */
414 return 1;
415 } else if (out[0] == TOS_NOT_PRESENT) {
416 pr_info("Toshiba SCI is not present\n");
417 }
418
419 return 0;
420 }
421
422 static void sci_close(struct toshiba_acpi_dev *dev)
423 {
424 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
425 u32 out[TCI_WORDS];
426 acpi_status status = tci_raw(dev, in, out);
427
428 if (ACPI_FAILURE(status)) {
429 pr_err("ACPI call to close SCI failed\n");
430 return;
431 }
432
433 if (out[0] == TOS_OPEN_CLOSE_OK)
434 return;
435 else if (out[0] == TOS_NOT_OPENED)
436 pr_info("Toshiba SCI not opened\n");
437 else if (out[0] == TOS_NOT_PRESENT)
438 pr_info("Toshiba SCI is not present\n");
439 }
440
441 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
442 {
443 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
444 u32 out[TCI_WORDS];
445 acpi_status status = tci_raw(dev, in, out);
446
447 if (ACPI_FAILURE(status))
448 return TOS_FAILURE;
449
450 *out1 = out[2];
451
452 return out[0];
453 }
454
455 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
456 {
457 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
458 u32 out[TCI_WORDS];
459 acpi_status status = tci_raw(dev, in, out);
460
461 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
462 }
463
464 /* Illumination support */
465 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
466 {
467 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
468 u32 out[TCI_WORDS];
469 acpi_status status;
470
471 dev->illumination_supported = 0;
472 dev->illumination_led_registered = false;
473
474 if (!sci_open(dev))
475 return;
476
477 status = tci_raw(dev, in, out);
478 sci_close(dev);
479 if (ACPI_FAILURE(status)) {
480 pr_err("ACPI call to query Illumination support failed\n");
481 return;
482 }
483
484 if (out[0] != TOS_SUCCESS)
485 return;
486
487 dev->illumination_supported = 1;
488 }
489
490 static void toshiba_illumination_set(struct led_classdev *cdev,
491 enum led_brightness brightness)
492 {
493 struct toshiba_acpi_dev *dev = container_of(cdev,
494 struct toshiba_acpi_dev, led_dev);
495 u32 result;
496 u32 state;
497
498 /* First request : initialize communication. */
499 if (!sci_open(dev))
500 return;
501
502 /* Switch the illumination on/off */
503 state = brightness ? 1 : 0;
504 result = sci_write(dev, SCI_ILLUMINATION, state);
505 sci_close(dev);
506 if (result == TOS_FAILURE)
507 pr_err("ACPI call for illumination failed\n");
508 }
509
510 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
511 {
512 struct toshiba_acpi_dev *dev = container_of(cdev,
513 struct toshiba_acpi_dev, led_dev);
514 u32 result;
515 u32 state;
516
517 /* First request : initialize communication. */
518 if (!sci_open(dev))
519 return LED_OFF;
520
521 /* Check the illumination */
522 result = sci_read(dev, SCI_ILLUMINATION, &state);
523 sci_close(dev);
524 if (result == TOS_FAILURE) {
525 pr_err("ACPI call for illumination failed\n");
526 return LED_OFF;
527 } else if (result != TOS_SUCCESS) {
528 return LED_OFF;
529 }
530
531 return state ? LED_FULL : LED_OFF;
532 }
533
534 /* KBD Illumination */
535 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
536 {
537 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
538 u32 out[TCI_WORDS];
539 acpi_status status;
540
541 dev->kbd_illum_supported = 0;
542 dev->kbd_led_registered = false;
543 dev->kbd_event_generated = false;
544
545 if (!sci_open(dev))
546 return;
547
548 status = tci_raw(dev, in, out);
549 sci_close(dev);
550 if (ACPI_FAILURE(status)) {
551 pr_err("ACPI call to query kbd illumination support failed\n");
552 return;
553 }
554
555 if (out[0] != TOS_SUCCESS)
556 return;
557
558 /*
559 * Check for keyboard backlight timeout max value,
560 * previous kbd backlight implementation set this to
561 * 0x3c0003, and now the new implementation set this
562 * to 0x3c001a, use this to distinguish between them.
563 */
564 if (out[3] == SCI_KBD_TIME_MAX)
565 dev->kbd_type = 2;
566 else
567 dev->kbd_type = 1;
568 /* Get the current keyboard backlight mode */
569 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
570 /* Get the current time (1-60 seconds) */
571 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
572 /* Flag as supported */
573 dev->kbd_illum_supported = 1;
574 }
575
576 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
577 {
578 u32 result;
579
580 if (!sci_open(dev))
581 return -EIO;
582
583 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
584 sci_close(dev);
585 if (result == TOS_FAILURE)
586 pr_err("ACPI call to set KBD backlight status failed\n");
587 else if (result == TOS_NOT_SUPPORTED)
588 return -ENODEV;
589
590 return result == TOS_SUCCESS ? 0 : -EIO;
591 }
592
593 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
594 {
595 u32 result;
596
597 if (!sci_open(dev))
598 return -EIO;
599
600 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
601 sci_close(dev);
602 if (result == TOS_FAILURE)
603 pr_err("ACPI call to get KBD backlight status failed\n");
604 else if (result == TOS_NOT_SUPPORTED)
605 return -ENODEV;
606
607 return result == TOS_SUCCESS ? 0 : -EIO;
608 }
609
610 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
611 {
612 struct toshiba_acpi_dev *dev = container_of(cdev,
613 struct toshiba_acpi_dev, kbd_led);
614 u32 result;
615 u32 state;
616
617 /* Check the keyboard backlight state */
618 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
619 if (result == TOS_FAILURE) {
620 pr_err("ACPI call to get the keyboard backlight failed\n");
621 return LED_OFF;
622 } else if (result != TOS_SUCCESS) {
623 return LED_OFF;
624 }
625
626 return state ? LED_FULL : LED_OFF;
627 }
628
629 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
630 enum led_brightness brightness)
631 {
632 struct toshiba_acpi_dev *dev = container_of(cdev,
633 struct toshiba_acpi_dev, kbd_led);
634 u32 result;
635 u32 state;
636
637 /* Set the keyboard backlight state */
638 state = brightness ? 1 : 0;
639 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
640 if (result == TOS_FAILURE)
641 pr_err("ACPI call to set KBD Illumination mode failed\n");
642 }
643
644 /* TouchPad support */
645 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
646 {
647 u32 result;
648
649 if (!sci_open(dev))
650 return -EIO;
651
652 result = sci_write(dev, SCI_TOUCHPAD, state);
653 sci_close(dev);
654 if (result == TOS_FAILURE)
655 pr_err("ACPI call to set the touchpad failed\n");
656 else if (result == TOS_NOT_SUPPORTED)
657 return -ENODEV;
658
659 return result == TOS_SUCCESS ? 0 : -EIO;
660 }
661
662 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
663 {
664 u32 result;
665
666 if (!sci_open(dev))
667 return -EIO;
668
669 result = sci_read(dev, SCI_TOUCHPAD, state);
670 sci_close(dev);
671 if (result == TOS_FAILURE)
672 pr_err("ACPI call to query the touchpad failed\n");
673 else if (result == TOS_NOT_SUPPORTED)
674 return -ENODEV;
675
676 return result == TOS_SUCCESS ? 0 : -EIO;
677 }
678
679 /* Eco Mode support */
680 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
681 {
682 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
683 u32 out[TCI_WORDS];
684 acpi_status status;
685
686 dev->eco_supported = 0;
687 dev->eco_led_registered = false;
688
689 status = tci_raw(dev, in, out);
690 if (ACPI_FAILURE(status)) {
691 pr_err("ACPI call to get ECO led failed\n");
692 return;
693 }
694
695 if (out[0] == TOS_INPUT_DATA_ERROR) {
696 /*
697 * If we receive 0x8300 (Input Data Error), it means that the
698 * LED device is present, but that we just screwed the input
699 * parameters.
700 *
701 * Let's query the status of the LED to see if we really have a
702 * success response, indicating the actual presense of the LED,
703 * bail out otherwise.
704 */
705 in[3] = 1;
706 status = tci_raw(dev, in, out);
707 if (ACPI_FAILURE(status)) {
708 pr_err("ACPI call to get ECO led failed\n");
709 return;
710 }
711
712 if (out[0] != TOS_SUCCESS)
713 return;
714
715 dev->eco_supported = 1;
716 }
717 }
718
719 static enum led_brightness
720 toshiba_eco_mode_get_status(struct led_classdev *cdev)
721 {
722 struct toshiba_acpi_dev *dev = container_of(cdev,
723 struct toshiba_acpi_dev, eco_led);
724 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
725 u32 out[TCI_WORDS];
726 acpi_status status;
727
728 status = tci_raw(dev, in, out);
729 if (ACPI_FAILURE(status)) {
730 pr_err("ACPI call to get ECO led failed\n");
731 return LED_OFF;
732 }
733
734 if (out[0] != TOS_SUCCESS)
735 return LED_OFF;
736
737 return out[2] ? LED_FULL : LED_OFF;
738 }
739
740 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
741 enum led_brightness brightness)
742 {
743 struct toshiba_acpi_dev *dev = container_of(cdev,
744 struct toshiba_acpi_dev, eco_led);
745 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
746 u32 out[TCI_WORDS];
747 acpi_status status;
748
749 /* Switch the Eco Mode led on/off */
750 in[2] = (brightness) ? 1 : 0;
751 status = tci_raw(dev, in, out);
752 if (ACPI_FAILURE(status))
753 pr_err("ACPI call to set ECO led failed\n");
754 }
755
756 /* Accelerometer support */
757 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
758 {
759 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
760 u32 out[TCI_WORDS];
761 acpi_status status;
762
763 dev->accelerometer_supported = 0;
764
765 /*
766 * Check if the accelerometer call exists,
767 * this call also serves as initialization
768 */
769 status = tci_raw(dev, in, out);
770 if (ACPI_FAILURE(status)) {
771 pr_err("ACPI call to query the accelerometer failed\n");
772 return;
773 }
774
775 if (out[0] != TOS_SUCCESS)
776 return;
777
778 dev->accelerometer_supported = 1;
779 }
780
781 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
782 u32 *xy, u32 *z)
783 {
784 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
785 u32 out[TCI_WORDS];
786 acpi_status status;
787
788 /* Check the Accelerometer status */
789 status = tci_raw(dev, in, out);
790 if (ACPI_FAILURE(status)) {
791 pr_err("ACPI call to query the accelerometer failed\n");
792 return -EIO;
793 }
794
795 if (out[0] == TOS_NOT_SUPPORTED)
796 return -ENODEV;
797
798 if (out[0] != TOS_SUCCESS)
799 return -EIO;
800
801 *xy = out[2];
802 *z = out[4];
803
804 return 0;
805 }
806
807 /* Sleep (Charge and Music) utilities support */
808 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
809 {
810 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
811 u32 out[TCI_WORDS];
812 acpi_status status;
813
814 dev->usb_sleep_charge_supported = 0;
815
816 if (!sci_open(dev))
817 return;
818
819 status = tci_raw(dev, in, out);
820 if (ACPI_FAILURE(status)) {
821 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
822 sci_close(dev);
823 return;
824 }
825
826 if (out[0] != TOS_SUCCESS) {
827 sci_close(dev);
828 return;
829 }
830
831 dev->usbsc_mode_base = out[4];
832
833 in[5] = SCI_USB_CHARGE_BAT_LVL;
834 status = tci_raw(dev, in, out);
835 sci_close(dev);
836 if (ACPI_FAILURE(status)) {
837 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
838 return;
839 }
840
841 if (out[0] != TOS_SUCCESS)
842 return;
843
844 dev->usbsc_bat_level = out[2];
845 /* Flag as supported */
846 dev->usb_sleep_charge_supported = 1;
847 }
848
849 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
850 u32 *mode)
851 {
852 u32 result;
853
854 if (!sci_open(dev))
855 return -EIO;
856
857 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
858 sci_close(dev);
859 if (result == TOS_FAILURE)
860 pr_err("ACPI call to set USB S&C mode failed\n");
861 else if (result == TOS_NOT_SUPPORTED)
862 return -ENODEV;
863
864 return result == TOS_SUCCESS ? 0 : -EIO;
865 }
866
867 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
868 u32 mode)
869 {
870 u32 result;
871
872 if (!sci_open(dev))
873 return -EIO;
874
875 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
876 sci_close(dev);
877 if (result == TOS_FAILURE)
878 pr_err("ACPI call to set USB S&C mode failed\n");
879 else if (result == TOS_NOT_SUPPORTED)
880 return -ENODEV;
881
882 return result == TOS_SUCCESS ? 0 : -EIO;
883 }
884
885 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
886 u32 *mode)
887 {
888 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
889 u32 out[TCI_WORDS];
890 acpi_status status;
891
892 if (!sci_open(dev))
893 return -EIO;
894
895 in[5] = SCI_USB_CHARGE_BAT_LVL;
896 status = tci_raw(dev, in, out);
897 sci_close(dev);
898 if (ACPI_FAILURE(status)) {
899 pr_err("ACPI call to get USB S&C battery level failed\n");
900 return -EIO;
901 }
902
903 if (out[0] == TOS_NOT_SUPPORTED)
904 return -ENODEV;
905
906 if (out[0] != TOS_SUCCESS)
907 return -EIO;
908
909 *mode = out[2];
910
911 return 0;
912
913 }
914
915 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
916 u32 mode)
917 {
918 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
919 u32 out[TCI_WORDS];
920 acpi_status status;
921
922 if (!sci_open(dev))
923 return -EIO;
924
925 in[2] = mode;
926 in[5] = SCI_USB_CHARGE_BAT_LVL;
927 status = tci_raw(dev, in, out);
928 sci_close(dev);
929 if (ACPI_FAILURE(status)) {
930 pr_err("ACPI call to set USB S&C battery level failed\n");
931 return -EIO;
932 }
933
934 if (out[0] == TOS_NOT_SUPPORTED)
935 return -ENODEV;
936
937 return out[0] == TOS_SUCCESS ? 0 : -EIO;
938 }
939
940 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
941 u32 *state)
942 {
943 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
944 u32 out[TCI_WORDS];
945 acpi_status status;
946
947 if (!sci_open(dev))
948 return -EIO;
949
950 in[5] = SCI_USB_CHARGE_RAPID_DSP;
951 status = tci_raw(dev, in, out);
952 sci_close(dev);
953 if (ACPI_FAILURE(status)) {
954 pr_err("ACPI call to get USB Rapid Charge failed\n");
955 return -EIO;
956 }
957
958 if (out[0] == TOS_NOT_SUPPORTED)
959 return -ENODEV;
960
961 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
962 return -EIO;
963
964 *state = out[2];
965
966 return 0;
967 }
968
969 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
970 u32 state)
971 {
972 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
973 u32 out[TCI_WORDS];
974 acpi_status status;
975
976 if (!sci_open(dev))
977 return -EIO;
978
979 in[2] = state;
980 in[5] = SCI_USB_CHARGE_RAPID_DSP;
981 status = tci_raw(dev, in, out);
982 sci_close(dev);
983 if (ACPI_FAILURE(status)) {
984 pr_err("ACPI call to set USB Rapid Charge failed\n");
985 return -EIO;
986 }
987
988 if (out[0] == TOS_NOT_SUPPORTED)
989 return -ENODEV;
990
991 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
992 }
993
994 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
995 {
996 u32 result;
997
998 if (!sci_open(dev))
999 return -EIO;
1000
1001 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
1002 sci_close(dev);
1003 if (result == TOS_FAILURE)
1004 pr_err("ACPI call to get Sleep and Music failed\n");
1005 else if (result == TOS_NOT_SUPPORTED)
1006 return -ENODEV;
1007
1008 return result == TOS_SUCCESS ? 0 : -EIO;
1009 }
1010
1011 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1012 {
1013 u32 result;
1014
1015 if (!sci_open(dev))
1016 return -EIO;
1017
1018 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1019 sci_close(dev);
1020 if (result == TOS_FAILURE)
1021 pr_err("ACPI call to set Sleep and Music failed\n");
1022 else if (result == TOS_NOT_SUPPORTED)
1023 return -ENODEV;
1024
1025 return result == TOS_SUCCESS ? 0 : -EIO;
1026 }
1027
1028 /* Keyboard function keys */
1029 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1030 {
1031 u32 result;
1032
1033 if (!sci_open(dev))
1034 return -EIO;
1035
1036 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1037 sci_close(dev);
1038 if (result == TOS_FAILURE)
1039 pr_err("ACPI call to get KBD function keys failed\n");
1040 else if (result == TOS_NOT_SUPPORTED)
1041 return -ENODEV;
1042
1043 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1044 }
1045
1046 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1047 {
1048 u32 result;
1049
1050 if (!sci_open(dev))
1051 return -EIO;
1052
1053 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1054 sci_close(dev);
1055 if (result == TOS_FAILURE)
1056 pr_err("ACPI call to set KBD function keys failed\n");
1057 else if (result == TOS_NOT_SUPPORTED)
1058 return -ENODEV;
1059
1060 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1061 }
1062
1063 /* Panel Power ON */
1064 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1065 {
1066 u32 result;
1067
1068 if (!sci_open(dev))
1069 return -EIO;
1070
1071 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1072 sci_close(dev);
1073 if (result == TOS_FAILURE)
1074 pr_err("ACPI call to get Panel Power ON failed\n");
1075 else if (result == TOS_NOT_SUPPORTED)
1076 return -ENODEV;
1077
1078 return result == TOS_SUCCESS ? 0 : -EIO;
1079 }
1080
1081 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1082 {
1083 u32 result;
1084
1085 if (!sci_open(dev))
1086 return -EIO;
1087
1088 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1089 sci_close(dev);
1090 if (result == TOS_FAILURE)
1091 pr_err("ACPI call to set Panel Power ON failed\n");
1092 else if (result == TOS_NOT_SUPPORTED)
1093 return -ENODEV;
1094
1095 return result == TOS_SUCCESS ? 0 : -EIO;
1096 }
1097
1098 /* USB Three */
1099 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1100 {
1101 u32 result;
1102
1103 if (!sci_open(dev))
1104 return -EIO;
1105
1106 result = sci_read(dev, SCI_USB_THREE, state);
1107 sci_close(dev);
1108 if (result == TOS_FAILURE)
1109 pr_err("ACPI call to get USB 3 failed\n");
1110 else if (result == TOS_NOT_SUPPORTED)
1111 return -ENODEV;
1112
1113 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1114 }
1115
1116 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1117 {
1118 u32 result;
1119
1120 if (!sci_open(dev))
1121 return -EIO;
1122
1123 result = sci_write(dev, SCI_USB_THREE, state);
1124 sci_close(dev);
1125 if (result == TOS_FAILURE)
1126 pr_err("ACPI call to set USB 3 failed\n");
1127 else if (result == TOS_NOT_SUPPORTED)
1128 return -ENODEV;
1129
1130 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1131 }
1132
1133 /* Hotkey Event type */
1134 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1135 u32 *type)
1136 {
1137 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1138 u32 out[TCI_WORDS];
1139 acpi_status status;
1140
1141 status = tci_raw(dev, in, out);
1142 if (ACPI_FAILURE(status)) {
1143 pr_err("ACPI call to get System type failed\n");
1144 return -EIO;
1145 }
1146
1147 if (out[0] == TOS_NOT_SUPPORTED)
1148 return -ENODEV;
1149
1150 if (out[0] != TOS_SUCCESS)
1151 return -EIO;
1152
1153 *type = out[3];
1154
1155 return 0;
1156 }
1157
1158 /* Wireless status (RFKill, WLAN, BT, WWAN) */
1159 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1160 {
1161 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1162 u32 out[TCI_WORDS];
1163 acpi_status status;
1164
1165 in[3] = HCI_WIRELESS_STATUS;
1166 status = tci_raw(dev, in, out);
1167
1168 if (ACPI_FAILURE(status)) {
1169 pr_err("ACPI call to get Wireless status failed\n");
1170 return -EIO;
1171 }
1172
1173 if (out[0] == TOS_NOT_SUPPORTED)
1174 return -ENODEV;
1175
1176 if (out[0] != TOS_SUCCESS)
1177 return -EIO;
1178
1179 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1180
1181 return 0;
1182 }
1183
1184 /* WWAN */
1185 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1186 {
1187 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1188 u32 out[TCI_WORDS];
1189 acpi_status status;
1190
1191 dev->wwan_supported = 0;
1192
1193 /*
1194 * WWAN support can be queried by setting the in[3] value to
1195 * HCI_WIRELESS_WWAN (0x03).
1196 *
1197 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1198 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1199 *
1200 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1201 * or TOS_NOT_SUPPORTED (0x8000).
1202 */
1203 in[3] = HCI_WIRELESS_WWAN;
1204 status = tci_raw(dev, in, out);
1205 if (ACPI_FAILURE(status)) {
1206 pr_err("ACPI call to get WWAN status failed\n");
1207 return;
1208 }
1209
1210 if (out[0] != TOS_SUCCESS)
1211 return;
1212
1213 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1214 }
1215
1216 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1217 {
1218 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1219 u32 out[TCI_WORDS];
1220 acpi_status status;
1221
1222 in[3] = HCI_WIRELESS_WWAN_STATUS;
1223 status = tci_raw(dev, in, out);
1224 if (ACPI_FAILURE(status)) {
1225 pr_err("ACPI call to set WWAN status failed\n");
1226 return -EIO;
1227 }
1228
1229 if (out[0] == TOS_NOT_SUPPORTED)
1230 return -ENODEV;
1231
1232 if (out[0] != TOS_SUCCESS)
1233 return -EIO;
1234
1235 /*
1236 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1237 * (de)activate the device, but some others need the
1238 * HCI_WIRELESS_WWAN_POWER call as well.
1239 */
1240 in[3] = HCI_WIRELESS_WWAN_POWER;
1241 status = tci_raw(dev, in, out);
1242 if (ACPI_FAILURE(status)) {
1243 pr_err("ACPI call to set WWAN power failed\n");
1244 return -EIO;
1245 }
1246
1247 if (out[0] == TOS_NOT_SUPPORTED)
1248 return -ENODEV;
1249
1250 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1251 }
1252
1253 /* Cooling Method */
1254 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1255 {
1256 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1257 u32 out[TCI_WORDS];
1258 acpi_status status;
1259
1260 dev->cooling_method_supported = 0;
1261 dev->max_cooling_method = 0;
1262
1263 status = tci_raw(dev, in, out);
1264 if (ACPI_FAILURE(status)) {
1265 pr_err("ACPI call to get Cooling Method failed\n");
1266 return;
1267 }
1268
1269 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1270 return;
1271
1272 dev->cooling_method_supported = 1;
1273 dev->max_cooling_method = out[3];
1274 }
1275
1276 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1277 {
1278 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1279
1280 if (result == TOS_FAILURE)
1281 pr_err("ACPI call to get Cooling Method failed\n");
1282
1283 if (result == TOS_NOT_SUPPORTED)
1284 return -ENODEV;
1285
1286 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1287 }
1288
1289 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1290 {
1291 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1292
1293 if (result == TOS_FAILURE)
1294 pr_err("ACPI call to set Cooling Method failed\n");
1295
1296 if (result == TOS_NOT_SUPPORTED)
1297 return -ENODEV;
1298
1299 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1300 }
1301
1302 /* Transflective Backlight */
1303 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1304 {
1305 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1306
1307 if (result == TOS_FAILURE)
1308 pr_err("ACPI call to get Transflective Backlight failed\n");
1309 else if (result == TOS_NOT_SUPPORTED)
1310 return -ENODEV;
1311
1312 return result == TOS_SUCCESS ? 0 : -EIO;
1313 }
1314
1315 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1316 {
1317 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1318
1319 if (result == TOS_FAILURE)
1320 pr_err("ACPI call to set Transflective Backlight failed\n");
1321 else if (result == TOS_NOT_SUPPORTED)
1322 return -ENODEV;
1323
1324 return result == TOS_SUCCESS ? 0 : -EIO;
1325 }
1326
1327 static struct proc_dir_entry *toshiba_proc_dir;
1328
1329 /* LCD Brightness */
1330 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1331 {
1332 int brightness = 0;
1333 u32 result;
1334 u32 value;
1335
1336 if (dev->tr_backlight_supported) {
1337 int ret = get_tr_backlight_status(dev, &value);
1338
1339 if (ret)
1340 return ret;
1341 if (value)
1342 return 0;
1343 brightness++;
1344 }
1345
1346 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1347 if (result == TOS_FAILURE)
1348 pr_err("ACPI call to get LCD Brightness failed\n");
1349 else if (result == TOS_NOT_SUPPORTED)
1350 return -ENODEV;
1351
1352 return result == TOS_SUCCESS ?
1353 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1354 -EIO;
1355 }
1356
1357 static int get_lcd_brightness(struct backlight_device *bd)
1358 {
1359 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1360
1361 return __get_lcd_brightness(dev);
1362 }
1363
1364 static int lcd_proc_show(struct seq_file *m, void *v)
1365 {
1366 struct toshiba_acpi_dev *dev = m->private;
1367 int levels;
1368 int value;
1369
1370 if (!dev->backlight_dev)
1371 return -ENODEV;
1372
1373 levels = dev->backlight_dev->props.max_brightness + 1;
1374 value = get_lcd_brightness(dev->backlight_dev);
1375 if (value < 0) {
1376 pr_err("Error reading LCD brightness\n");
1377 return value;
1378 }
1379
1380 seq_printf(m, "brightness: %d\n", value);
1381 seq_printf(m, "brightness_levels: %d\n", levels);
1382
1383 return 0;
1384 }
1385
1386 static int lcd_proc_open(struct inode *inode, struct file *file)
1387 {
1388 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1389 }
1390
1391 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1392 {
1393 u32 result;
1394
1395 if (dev->tr_backlight_supported) {
1396 int ret = set_tr_backlight_status(dev, !value);
1397
1398 if (ret)
1399 return ret;
1400 if (value)
1401 value--;
1402 }
1403
1404 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1405 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1406 if (result == TOS_FAILURE)
1407 pr_err("ACPI call to set LCD Brightness failed\n");
1408 else if (result == TOS_NOT_SUPPORTED)
1409 return -ENODEV;
1410
1411 return result == TOS_SUCCESS ? 0 : -EIO;
1412 }
1413
1414 static int set_lcd_status(struct backlight_device *bd)
1415 {
1416 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1417
1418 return set_lcd_brightness(dev, bd->props.brightness);
1419 }
1420
1421 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1422 size_t count, loff_t *pos)
1423 {
1424 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1425 char cmd[42];
1426 size_t len;
1427 int levels;
1428 int value;
1429
1430 len = min(count, sizeof(cmd) - 1);
1431 if (copy_from_user(cmd, buf, len))
1432 return -EFAULT;
1433 cmd[len] = '\0';
1434
1435 levels = dev->backlight_dev->props.max_brightness + 1;
1436 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1437 value < 0 && value > levels)
1438 return -EINVAL;
1439
1440 if (set_lcd_brightness(dev, value))
1441 return -EIO;
1442
1443 return count;
1444 }
1445
1446 static const struct file_operations lcd_proc_fops = {
1447 .owner = THIS_MODULE,
1448 .open = lcd_proc_open,
1449 .read = seq_read,
1450 .llseek = seq_lseek,
1451 .release = single_release,
1452 .write = lcd_proc_write,
1453 };
1454
1455 /* Video-Out */
1456 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1457 {
1458 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1459
1460 if (result == TOS_FAILURE)
1461 pr_err("ACPI call to get Video-Out failed\n");
1462 else if (result == TOS_NOT_SUPPORTED)
1463 return -ENODEV;
1464
1465 return result == TOS_SUCCESS ? 0 : -EIO;
1466 }
1467
1468 static int video_proc_show(struct seq_file *m, void *v)
1469 {
1470 struct toshiba_acpi_dev *dev = m->private;
1471 int is_lcd, is_crt, is_tv;
1472 u32 value;
1473
1474 if (get_video_status(dev, &value))
1475 return -EIO;
1476
1477 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1478 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1479 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1480
1481 seq_printf(m, "lcd_out: %d\n", is_lcd);
1482 seq_printf(m, "crt_out: %d\n", is_crt);
1483 seq_printf(m, "tv_out: %d\n", is_tv);
1484
1485 return 0;
1486 }
1487
1488 static int video_proc_open(struct inode *inode, struct file *file)
1489 {
1490 return single_open(file, video_proc_show, PDE_DATA(inode));
1491 }
1492
1493 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1494 size_t count, loff_t *pos)
1495 {
1496 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1497 char *buffer;
1498 char *cmd;
1499 int lcd_out, crt_out, tv_out;
1500 int remain = count;
1501 int value;
1502 int ret;
1503 u32 video_out;
1504
1505 cmd = memdup_user_nul(buf, count);
1506 if (IS_ERR(cmd))
1507 return PTR_ERR(cmd);
1508
1509 buffer = cmd;
1510
1511 /*
1512 * Scan expression. Multiple expressions may be delimited with ;
1513 * NOTE: To keep scanning simple, invalid fields are ignored.
1514 */
1515 while (remain) {
1516 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1517 lcd_out = value & 1;
1518 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1519 crt_out = value & 1;
1520 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1521 tv_out = value & 1;
1522 /* Advance to one character past the next ; */
1523 do {
1524 ++buffer;
1525 --remain;
1526 } while (remain && *(buffer - 1) != ';');
1527 }
1528
1529 kfree(cmd);
1530
1531 lcd_out = crt_out = tv_out = -1;
1532 ret = get_video_status(dev, &video_out);
1533 if (!ret) {
1534 unsigned int new_video_out = video_out;
1535
1536 if (lcd_out != -1)
1537 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1538 if (crt_out != -1)
1539 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1540 if (tv_out != -1)
1541 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1542 /*
1543 * To avoid unnecessary video disruption, only write the new
1544 * video setting if something changed.
1545 */
1546 if (new_video_out != video_out)
1547 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1548 }
1549
1550 return ret ? -EIO : count;
1551 }
1552
1553 static const struct file_operations video_proc_fops = {
1554 .owner = THIS_MODULE,
1555 .open = video_proc_open,
1556 .read = seq_read,
1557 .llseek = seq_lseek,
1558 .release = single_release,
1559 .write = video_proc_write,
1560 };
1561
1562 /* Fan status */
1563 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1564 {
1565 u32 result = hci_read(dev, HCI_FAN, status);
1566
1567 if (result == TOS_FAILURE)
1568 pr_err("ACPI call to get Fan status failed\n");
1569 else if (result == TOS_NOT_SUPPORTED)
1570 return -ENODEV;
1571
1572 return result == TOS_SUCCESS ? 0 : -EIO;
1573 }
1574
1575 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1576 {
1577 u32 result = hci_write(dev, HCI_FAN, status);
1578
1579 if (result == TOS_FAILURE)
1580 pr_err("ACPI call to set Fan status failed\n");
1581 else if (result == TOS_NOT_SUPPORTED)
1582 return -ENODEV;
1583
1584 return result == TOS_SUCCESS ? 0 : -EIO;
1585 }
1586
1587 static int fan_proc_show(struct seq_file *m, void *v)
1588 {
1589 struct toshiba_acpi_dev *dev = m->private;
1590 u32 value;
1591
1592 if (get_fan_status(dev, &value))
1593 return -EIO;
1594
1595 seq_printf(m, "running: %d\n", (value > 0));
1596 seq_printf(m, "force_on: %d\n", dev->force_fan);
1597
1598 return 0;
1599 }
1600
1601 static int fan_proc_open(struct inode *inode, struct file *file)
1602 {
1603 return single_open(file, fan_proc_show, PDE_DATA(inode));
1604 }
1605
1606 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1607 size_t count, loff_t *pos)
1608 {
1609 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1610 char cmd[42];
1611 size_t len;
1612 int value;
1613
1614 len = min(count, sizeof(cmd) - 1);
1615 if (copy_from_user(cmd, buf, len))
1616 return -EFAULT;
1617 cmd[len] = '\0';
1618
1619 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1620 value != 0 && value != 1)
1621 return -EINVAL;
1622
1623 if (set_fan_status(dev, value))
1624 return -EIO;
1625
1626 dev->force_fan = value;
1627
1628 return count;
1629 }
1630
1631 static const struct file_operations fan_proc_fops = {
1632 .owner = THIS_MODULE,
1633 .open = fan_proc_open,
1634 .read = seq_read,
1635 .llseek = seq_lseek,
1636 .release = single_release,
1637 .write = fan_proc_write,
1638 };
1639
1640 static int keys_proc_show(struct seq_file *m, void *v)
1641 {
1642 struct toshiba_acpi_dev *dev = m->private;
1643
1644 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1645 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1646
1647 return 0;
1648 }
1649
1650 static int keys_proc_open(struct inode *inode, struct file *file)
1651 {
1652 return single_open(file, keys_proc_show, PDE_DATA(inode));
1653 }
1654
1655 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1656 size_t count, loff_t *pos)
1657 {
1658 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1659 char cmd[42];
1660 size_t len;
1661 int value;
1662
1663 len = min(count, sizeof(cmd) - 1);
1664 if (copy_from_user(cmd, buf, len))
1665 return -EFAULT;
1666 cmd[len] = '\0';
1667
1668 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1669 dev->key_event_valid = 0;
1670 else
1671 return -EINVAL;
1672
1673 return count;
1674 }
1675
1676 static const struct file_operations keys_proc_fops = {
1677 .owner = THIS_MODULE,
1678 .open = keys_proc_open,
1679 .read = seq_read,
1680 .llseek = seq_lseek,
1681 .release = single_release,
1682 .write = keys_proc_write,
1683 };
1684
1685 static int version_proc_show(struct seq_file *m, void *v)
1686 {
1687 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1688 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1689 return 0;
1690 }
1691
1692 static int version_proc_open(struct inode *inode, struct file *file)
1693 {
1694 return single_open(file, version_proc_show, PDE_DATA(inode));
1695 }
1696
1697 static const struct file_operations version_proc_fops = {
1698 .owner = THIS_MODULE,
1699 .open = version_proc_open,
1700 .read = seq_read,
1701 .llseek = seq_lseek,
1702 .release = single_release,
1703 };
1704
1705 /*
1706 * Proc and module init
1707 */
1708
1709 #define PROC_TOSHIBA "toshiba"
1710
1711 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1712 {
1713 if (dev->backlight_dev)
1714 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1715 &lcd_proc_fops, dev);
1716 if (dev->video_supported)
1717 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1718 &video_proc_fops, dev);
1719 if (dev->fan_supported)
1720 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1721 &fan_proc_fops, dev);
1722 if (dev->hotkey_dev)
1723 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1724 &keys_proc_fops, dev);
1725 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1726 &version_proc_fops, dev);
1727 }
1728
1729 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1730 {
1731 if (dev->backlight_dev)
1732 remove_proc_entry("lcd", toshiba_proc_dir);
1733 if (dev->video_supported)
1734 remove_proc_entry("video", toshiba_proc_dir);
1735 if (dev->fan_supported)
1736 remove_proc_entry("fan", toshiba_proc_dir);
1737 if (dev->hotkey_dev)
1738 remove_proc_entry("keys", toshiba_proc_dir);
1739 remove_proc_entry("version", toshiba_proc_dir);
1740 }
1741
1742 static const struct backlight_ops toshiba_backlight_data = {
1743 .options = BL_CORE_SUSPENDRESUME,
1744 .get_brightness = get_lcd_brightness,
1745 .update_status = set_lcd_status,
1746 };
1747
1748 /* Keyboard backlight work */
1749 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1750
1751 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1752
1753 /*
1754 * Sysfs files
1755 */
1756 static ssize_t version_show(struct device *dev,
1757 struct device_attribute *attr, char *buf)
1758 {
1759 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1760 }
1761 static DEVICE_ATTR_RO(version);
1762
1763 static ssize_t fan_store(struct device *dev,
1764 struct device_attribute *attr,
1765 const char *buf, size_t count)
1766 {
1767 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1768 int state;
1769 int ret;
1770
1771 ret = kstrtoint(buf, 0, &state);
1772 if (ret)
1773 return ret;
1774
1775 if (state != 0 && state != 1)
1776 return -EINVAL;
1777
1778 ret = set_fan_status(toshiba, state);
1779 if (ret)
1780 return ret;
1781
1782 return count;
1783 }
1784
1785 static ssize_t fan_show(struct device *dev,
1786 struct device_attribute *attr, char *buf)
1787 {
1788 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1789 u32 value;
1790 int ret;
1791
1792 ret = get_fan_status(toshiba, &value);
1793 if (ret)
1794 return ret;
1795
1796 return sprintf(buf, "%d\n", value);
1797 }
1798 static DEVICE_ATTR_RW(fan);
1799
1800 static ssize_t kbd_backlight_mode_store(struct device *dev,
1801 struct device_attribute *attr,
1802 const char *buf, size_t count)
1803 {
1804 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1805 int mode;
1806 int ret;
1807
1808
1809 ret = kstrtoint(buf, 0, &mode);
1810 if (ret)
1811 return ret;
1812
1813 /* Check for supported modes depending on keyboard backlight type */
1814 if (toshiba->kbd_type == 1) {
1815 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1816 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1817 return -EINVAL;
1818 } else if (toshiba->kbd_type == 2) {
1819 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1820 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1821 mode != SCI_KBD_MODE_OFF)
1822 return -EINVAL;
1823 }
1824
1825 /*
1826 * Set the Keyboard Backlight Mode where:
1827 * Auto - KBD backlight turns off automatically in given time
1828 * FN-Z - KBD backlight "toggles" when hotkey pressed
1829 * ON - KBD backlight is always on
1830 * OFF - KBD backlight is always off
1831 */
1832
1833 /* Only make a change if the actual mode has changed */
1834 if (toshiba->kbd_mode != mode) {
1835 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1836 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1837
1838 /* OR the "base time" to the actual method format */
1839 if (toshiba->kbd_type == 1) {
1840 /* Type 1 requires the current mode */
1841 time |= toshiba->kbd_mode;
1842 } else if (toshiba->kbd_type == 2) {
1843 /* Type 2 requires the desired mode */
1844 time |= mode;
1845 }
1846
1847 ret = toshiba_kbd_illum_status_set(toshiba, time);
1848 if (ret)
1849 return ret;
1850
1851 toshiba->kbd_mode = mode;
1852
1853 /*
1854 * Some laptop models with the second generation backlit
1855 * keyboard (type 2) do not generate the keyboard backlight
1856 * changed event (0x92), and thus, the driver will never update
1857 * the sysfs entries.
1858 *
1859 * The event is generated right when changing the keyboard
1860 * backlight mode and the *notify function will set the
1861 * kbd_event_generated to true.
1862 *
1863 * In case the event is not generated, schedule the keyboard
1864 * backlight work to update the sysfs entries and emulate the
1865 * event via genetlink.
1866 */
1867 if (toshiba->kbd_type == 2 &&
1868 !toshiba_acpi->kbd_event_generated)
1869 schedule_work(&kbd_bl_work);
1870 }
1871
1872 return count;
1873 }
1874
1875 static ssize_t kbd_backlight_mode_show(struct device *dev,
1876 struct device_attribute *attr,
1877 char *buf)
1878 {
1879 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1880 u32 time;
1881
1882 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1883 return -EIO;
1884
1885 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1886 }
1887 static DEVICE_ATTR_RW(kbd_backlight_mode);
1888
1889 static ssize_t kbd_type_show(struct device *dev,
1890 struct device_attribute *attr, char *buf)
1891 {
1892 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1893
1894 return sprintf(buf, "%d\n", toshiba->kbd_type);
1895 }
1896 static DEVICE_ATTR_RO(kbd_type);
1897
1898 static ssize_t available_kbd_modes_show(struct device *dev,
1899 struct device_attribute *attr,
1900 char *buf)
1901 {
1902 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1903
1904 if (toshiba->kbd_type == 1)
1905 return sprintf(buf, "0x%x 0x%x\n",
1906 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1907
1908 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1909 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1910 }
1911 static DEVICE_ATTR_RO(available_kbd_modes);
1912
1913 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1914 struct device_attribute *attr,
1915 const char *buf, size_t count)
1916 {
1917 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1918 int time;
1919 int ret;
1920
1921 ret = kstrtoint(buf, 0, &time);
1922 if (ret)
1923 return ret;
1924
1925 /* Check for supported values depending on kbd_type */
1926 if (toshiba->kbd_type == 1) {
1927 if (time < 0 || time > 60)
1928 return -EINVAL;
1929 } else if (toshiba->kbd_type == 2) {
1930 if (time < 1 || time > 60)
1931 return -EINVAL;
1932 }
1933
1934 /* Set the Keyboard Backlight Timeout */
1935
1936 /* Only make a change if the actual timeout has changed */
1937 if (toshiba->kbd_time != time) {
1938 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1939 time = time << HCI_MISC_SHIFT;
1940 /* OR the "base time" to the actual method format */
1941 if (toshiba->kbd_type == 1)
1942 time |= SCI_KBD_MODE_FNZ;
1943 else if (toshiba->kbd_type == 2)
1944 time |= SCI_KBD_MODE_AUTO;
1945
1946 ret = toshiba_kbd_illum_status_set(toshiba, time);
1947 if (ret)
1948 return ret;
1949
1950 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1951 }
1952
1953 return count;
1954 }
1955
1956 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1957 struct device_attribute *attr,
1958 char *buf)
1959 {
1960 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1961 u32 time;
1962
1963 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1964 return -EIO;
1965
1966 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1967 }
1968 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1969
1970 static ssize_t touchpad_store(struct device *dev,
1971 struct device_attribute *attr,
1972 const char *buf, size_t count)
1973 {
1974 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1975 int state;
1976 int ret;
1977
1978 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1979 ret = kstrtoint(buf, 0, &state);
1980 if (ret)
1981 return ret;
1982 if (state != 0 && state != 1)
1983 return -EINVAL;
1984
1985 ret = toshiba_touchpad_set(toshiba, state);
1986 if (ret)
1987 return ret;
1988
1989 return count;
1990 }
1991
1992 static ssize_t touchpad_show(struct device *dev,
1993 struct device_attribute *attr, char *buf)
1994 {
1995 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1996 u32 state;
1997 int ret;
1998
1999 ret = toshiba_touchpad_get(toshiba, &state);
2000 if (ret < 0)
2001 return ret;
2002
2003 return sprintf(buf, "%i\n", state);
2004 }
2005 static DEVICE_ATTR_RW(touchpad);
2006
2007 static ssize_t usb_sleep_charge_show(struct device *dev,
2008 struct device_attribute *attr, char *buf)
2009 {
2010 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2011 u32 mode;
2012 int ret;
2013
2014 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2015 if (ret < 0)
2016 return ret;
2017
2018 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2019 }
2020
2021 static ssize_t usb_sleep_charge_store(struct device *dev,
2022 struct device_attribute *attr,
2023 const char *buf, size_t count)
2024 {
2025 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2026 int state;
2027 u32 mode;
2028 int ret;
2029
2030 ret = kstrtoint(buf, 0, &state);
2031 if (ret)
2032 return ret;
2033 /*
2034 * Check for supported values, where:
2035 * 0 - Disabled
2036 * 1 - Alternate (Non USB conformant devices that require more power)
2037 * 2 - Auto (USB conformant devices)
2038 * 3 - Typical
2039 */
2040 if (state != 0 && state != 1 && state != 2 && state != 3)
2041 return -EINVAL;
2042
2043 /* Set the USB charging mode to internal value */
2044 mode = toshiba->usbsc_mode_base;
2045 if (state == 0)
2046 mode |= SCI_USB_CHARGE_DISABLED;
2047 else if (state == 1)
2048 mode |= SCI_USB_CHARGE_ALTERNATE;
2049 else if (state == 2)
2050 mode |= SCI_USB_CHARGE_AUTO;
2051 else if (state == 3)
2052 mode |= SCI_USB_CHARGE_TYPICAL;
2053
2054 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2055 if (ret)
2056 return ret;
2057
2058 return count;
2059 }
2060 static DEVICE_ATTR_RW(usb_sleep_charge);
2061
2062 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2063 struct device_attribute *attr,
2064 char *buf)
2065 {
2066 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2067 int bat_lvl, status;
2068 u32 state;
2069 int ret;
2070 int tmp;
2071
2072 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2073 if (ret < 0)
2074 return ret;
2075
2076 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2077 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2078 status = (tmp == 0x4) ? 1 : 0;
2079 /* Determine the battery level set */
2080 bat_lvl = state >> HCI_MISC_SHIFT;
2081
2082 return sprintf(buf, "%d %d\n", status, bat_lvl);
2083 }
2084
2085 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2086 struct device_attribute *attr,
2087 const char *buf, size_t count)
2088 {
2089 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2090 u32 status;
2091 int value;
2092 int ret;
2093 int tmp;
2094
2095 ret = kstrtoint(buf, 0, &value);
2096 if (ret)
2097 return ret;
2098
2099 /*
2100 * Set the status of the function:
2101 * 0 - Disabled
2102 * 1-100 - Enabled
2103 */
2104 if (value < 0 || value > 100)
2105 return -EINVAL;
2106
2107 if (value == 0) {
2108 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2109 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2110 } else {
2111 tmp = value << HCI_MISC_SHIFT;
2112 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2113 }
2114 ret = toshiba_sleep_functions_status_set(toshiba, status);
2115 if (ret < 0)
2116 return ret;
2117
2118 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2119
2120 return count;
2121 }
2122 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2123
2124 static ssize_t usb_rapid_charge_show(struct device *dev,
2125 struct device_attribute *attr, char *buf)
2126 {
2127 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2128 u32 state;
2129 int ret;
2130
2131 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2132 if (ret < 0)
2133 return ret;
2134
2135 return sprintf(buf, "%d\n", state);
2136 }
2137
2138 static ssize_t usb_rapid_charge_store(struct device *dev,
2139 struct device_attribute *attr,
2140 const char *buf, size_t count)
2141 {
2142 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2143 int state;
2144 int ret;
2145
2146 ret = kstrtoint(buf, 0, &state);
2147 if (ret)
2148 return ret;
2149 if (state != 0 && state != 1)
2150 return -EINVAL;
2151
2152 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2153 if (ret)
2154 return ret;
2155
2156 return count;
2157 }
2158 static DEVICE_ATTR_RW(usb_rapid_charge);
2159
2160 static ssize_t usb_sleep_music_show(struct device *dev,
2161 struct device_attribute *attr, char *buf)
2162 {
2163 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2164 u32 state;
2165 int ret;
2166
2167 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2168 if (ret < 0)
2169 return ret;
2170
2171 return sprintf(buf, "%d\n", state);
2172 }
2173
2174 static ssize_t usb_sleep_music_store(struct device *dev,
2175 struct device_attribute *attr,
2176 const char *buf, size_t count)
2177 {
2178 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2179 int state;
2180 int ret;
2181
2182 ret = kstrtoint(buf, 0, &state);
2183 if (ret)
2184 return ret;
2185 if (state != 0 && state != 1)
2186 return -EINVAL;
2187
2188 ret = toshiba_usb_sleep_music_set(toshiba, state);
2189 if (ret)
2190 return ret;
2191
2192 return count;
2193 }
2194 static DEVICE_ATTR_RW(usb_sleep_music);
2195
2196 static ssize_t kbd_function_keys_show(struct device *dev,
2197 struct device_attribute *attr, char *buf)
2198 {
2199 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2200 int mode;
2201 int ret;
2202
2203 ret = toshiba_function_keys_get(toshiba, &mode);
2204 if (ret < 0)
2205 return ret;
2206
2207 return sprintf(buf, "%d\n", mode);
2208 }
2209
2210 static ssize_t kbd_function_keys_store(struct device *dev,
2211 struct device_attribute *attr,
2212 const char *buf, size_t count)
2213 {
2214 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2215 int mode;
2216 int ret;
2217
2218 ret = kstrtoint(buf, 0, &mode);
2219 if (ret)
2220 return ret;
2221 /*
2222 * Check for the function keys mode where:
2223 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2224 * 1 - Special functions (Opposite of the above setting)
2225 */
2226 if (mode != 0 && mode != 1)
2227 return -EINVAL;
2228
2229 ret = toshiba_function_keys_set(toshiba, mode);
2230 if (ret)
2231 return ret;
2232
2233 pr_info("Reboot for changes to KBD Function Keys to take effect");
2234
2235 return count;
2236 }
2237 static DEVICE_ATTR_RW(kbd_function_keys);
2238
2239 static ssize_t panel_power_on_show(struct device *dev,
2240 struct device_attribute *attr, char *buf)
2241 {
2242 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2243 u32 state;
2244 int ret;
2245
2246 ret = toshiba_panel_power_on_get(toshiba, &state);
2247 if (ret < 0)
2248 return ret;
2249
2250 return sprintf(buf, "%d\n", state);
2251 }
2252
2253 static ssize_t panel_power_on_store(struct device *dev,
2254 struct device_attribute *attr,
2255 const char *buf, size_t count)
2256 {
2257 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2258 int state;
2259 int ret;
2260
2261 ret = kstrtoint(buf, 0, &state);
2262 if (ret)
2263 return ret;
2264 if (state != 0 && state != 1)
2265 return -EINVAL;
2266
2267 ret = toshiba_panel_power_on_set(toshiba, state);
2268 if (ret)
2269 return ret;
2270
2271 pr_info("Reboot for changes to Panel Power ON to take effect");
2272
2273 return count;
2274 }
2275 static DEVICE_ATTR_RW(panel_power_on);
2276
2277 static ssize_t usb_three_show(struct device *dev,
2278 struct device_attribute *attr, char *buf)
2279 {
2280 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2281 u32 state;
2282 int ret;
2283
2284 ret = toshiba_usb_three_get(toshiba, &state);
2285 if (ret < 0)
2286 return ret;
2287
2288 return sprintf(buf, "%d\n", state);
2289 }
2290
2291 static ssize_t usb_three_store(struct device *dev,
2292 struct device_attribute *attr,
2293 const char *buf, size_t count)
2294 {
2295 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2296 int state;
2297 int ret;
2298
2299 ret = kstrtoint(buf, 0, &state);
2300 if (ret)
2301 return ret;
2302 /*
2303 * Check for USB 3 mode where:
2304 * 0 - Disabled (Acts like a USB 2 port, saving power)
2305 * 1 - Enabled
2306 */
2307 if (state != 0 && state != 1)
2308 return -EINVAL;
2309
2310 ret = toshiba_usb_three_set(toshiba, state);
2311 if (ret)
2312 return ret;
2313
2314 pr_info("Reboot for changes to USB 3 to take effect");
2315
2316 return count;
2317 }
2318 static DEVICE_ATTR_RW(usb_three);
2319
2320 static ssize_t cooling_method_show(struct device *dev,
2321 struct device_attribute *attr, char *buf)
2322 {
2323 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2324 int state;
2325 int ret;
2326
2327 ret = toshiba_cooling_method_get(toshiba, &state);
2328 if (ret < 0)
2329 return ret;
2330
2331 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2332 }
2333
2334 static ssize_t cooling_method_store(struct device *dev,
2335 struct device_attribute *attr,
2336 const char *buf, size_t count)
2337 {
2338 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2339 int state;
2340 int ret;
2341
2342 ret = kstrtoint(buf, 0, &state);
2343 if (ret)
2344 return ret;
2345
2346 /*
2347 * Check for supported values
2348 * Depending on the laptop model, some only support these two:
2349 * 0 - Maximum Performance
2350 * 1 - Battery Optimized
2351 *
2352 * While some others support all three methods:
2353 * 0 - Maximum Performance
2354 * 1 - Performance
2355 * 2 - Battery Optimized
2356 */
2357 if (state < 0 || state > toshiba->max_cooling_method)
2358 return -EINVAL;
2359
2360 ret = toshiba_cooling_method_set(toshiba, state);
2361 if (ret)
2362 return ret;
2363
2364 return count;
2365 }
2366 static DEVICE_ATTR_RW(cooling_method);
2367
2368 static struct attribute *toshiba_attributes[] = {
2369 &dev_attr_version.attr,
2370 &dev_attr_fan.attr,
2371 &dev_attr_kbd_backlight_mode.attr,
2372 &dev_attr_kbd_type.attr,
2373 &dev_attr_available_kbd_modes.attr,
2374 &dev_attr_kbd_backlight_timeout.attr,
2375 &dev_attr_touchpad.attr,
2376 &dev_attr_usb_sleep_charge.attr,
2377 &dev_attr_sleep_functions_on_battery.attr,
2378 &dev_attr_usb_rapid_charge.attr,
2379 &dev_attr_usb_sleep_music.attr,
2380 &dev_attr_kbd_function_keys.attr,
2381 &dev_attr_panel_power_on.attr,
2382 &dev_attr_usb_three.attr,
2383 &dev_attr_cooling_method.attr,
2384 NULL,
2385 };
2386
2387 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2388 struct attribute *attr, int idx)
2389 {
2390 struct device *dev = container_of(kobj, struct device, kobj);
2391 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2392 bool exists = true;
2393
2394 if (attr == &dev_attr_fan.attr)
2395 exists = (drv->fan_supported) ? true : false;
2396 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2397 exists = (drv->kbd_illum_supported) ? true : false;
2398 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2399 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2400 else if (attr == &dev_attr_touchpad.attr)
2401 exists = (drv->touchpad_supported) ? true : false;
2402 else if (attr == &dev_attr_usb_sleep_charge.attr)
2403 exists = (drv->usb_sleep_charge_supported) ? true : false;
2404 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2405 exists = (drv->usb_sleep_charge_supported) ? true : false;
2406 else if (attr == &dev_attr_usb_rapid_charge.attr)
2407 exists = (drv->usb_rapid_charge_supported) ? true : false;
2408 else if (attr == &dev_attr_usb_sleep_music.attr)
2409 exists = (drv->usb_sleep_music_supported) ? true : false;
2410 else if (attr == &dev_attr_kbd_function_keys.attr)
2411 exists = (drv->kbd_function_keys_supported) ? true : false;
2412 else if (attr == &dev_attr_panel_power_on.attr)
2413 exists = (drv->panel_power_on_supported) ? true : false;
2414 else if (attr == &dev_attr_usb_three.attr)
2415 exists = (drv->usb_three_supported) ? true : false;
2416 else if (attr == &dev_attr_cooling_method.attr)
2417 exists = (drv->cooling_method_supported) ? true : false;
2418
2419 return exists ? attr->mode : 0;
2420 }
2421
2422 static const struct attribute_group toshiba_attr_group = {
2423 .is_visible = toshiba_sysfs_is_visible,
2424 .attrs = toshiba_attributes,
2425 };
2426
2427 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2428 {
2429 struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2430
2431 /* Update the sysfs entries */
2432 if (sysfs_update_group(&acpi_dev->dev.kobj,
2433 &toshiba_attr_group))
2434 pr_err("Unable to update sysfs entries\n");
2435
2436 /* Emulate the keyboard backlight event */
2437 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2438 dev_name(&acpi_dev->dev),
2439 0x92, 0);
2440 }
2441
2442 /*
2443 * IIO device
2444 */
2445
2446 enum toshiba_iio_accel_chan {
2447 AXIS_X,
2448 AXIS_Y,
2449 AXIS_Z
2450 };
2451
2452 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2453 {
2454 u32 xyval, zval;
2455 int ret;
2456
2457 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2458 if (ret < 0)
2459 return ret;
2460
2461 switch (chan) {
2462 case AXIS_X:
2463 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2464 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2465 case AXIS_Y:
2466 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2467 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2468 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2469 case AXIS_Z:
2470 return zval & HCI_ACCEL_DIRECTION_MASK ?
2471 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2472 }
2473
2474 return ret;
2475 }
2476
2477 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2478 struct iio_chan_spec const *chan,
2479 int *val, int *val2, long mask)
2480 {
2481 int ret;
2482
2483 switch (mask) {
2484 case IIO_CHAN_INFO_RAW:
2485 ret = toshiba_iio_accel_get_axis(chan->channel);
2486 if (ret == -EIO || ret == -ENODEV)
2487 return ret;
2488
2489 *val = ret;
2490
2491 return IIO_VAL_INT;
2492 }
2493
2494 return -EINVAL;
2495 }
2496
2497 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2498 .type = IIO_ACCEL, \
2499 .modified = 1, \
2500 .channel = chan, \
2501 .channel2 = IIO_MOD_##axis, \
2502 .output = 1, \
2503 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2504 }
2505
2506 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2507 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2508 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2509 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2510 };
2511
2512 static const struct iio_info toshiba_iio_accel_info = {
2513 .read_raw = &toshiba_iio_accel_read_raw,
2514 };
2515
2516 /*
2517 * Misc device
2518 */
2519 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2520 {
2521 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2522 regs->edx, regs->esi, regs->edi };
2523 u32 out[TCI_WORDS];
2524 acpi_status status;
2525
2526 status = tci_raw(toshiba_acpi, in, out);
2527 if (ACPI_FAILURE(status)) {
2528 pr_err("ACPI call to query SMM registers failed\n");
2529 return -EIO;
2530 }
2531
2532 /* Fillout the SMM struct with the TCI call results */
2533 regs->eax = out[0];
2534 regs->ebx = out[1];
2535 regs->ecx = out[2];
2536 regs->edx = out[3];
2537 regs->esi = out[4];
2538 regs->edi = out[5];
2539
2540 return 0;
2541 }
2542
2543 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2544 unsigned long arg)
2545 {
2546 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2547 SMMRegisters regs;
2548 int ret;
2549
2550 if (!argp)
2551 return -EINVAL;
2552
2553 switch (cmd) {
2554 case TOSH_SMM:
2555 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2556 return -EFAULT;
2557 ret = toshiba_acpi_smm_bridge(&regs);
2558 if (ret)
2559 return ret;
2560 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2561 return -EFAULT;
2562 break;
2563 case TOSHIBA_ACPI_SCI:
2564 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2565 return -EFAULT;
2566 /* Ensure we are being called with a SCI_{GET, SET} register */
2567 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2568 return -EINVAL;
2569 if (!sci_open(toshiba_acpi))
2570 return -EIO;
2571 ret = toshiba_acpi_smm_bridge(&regs);
2572 sci_close(toshiba_acpi);
2573 if (ret)
2574 return ret;
2575 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2576 return -EFAULT;
2577 break;
2578 default:
2579 return -EINVAL;
2580 }
2581
2582 return 0;
2583 }
2584
2585 static const struct file_operations toshiba_acpi_fops = {
2586 .owner = THIS_MODULE,
2587 .unlocked_ioctl = toshiba_acpi_ioctl,
2588 .llseek = noop_llseek,
2589 };
2590
2591 /*
2592 * WWAN RFKill handlers
2593 */
2594 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2595 {
2596 struct toshiba_acpi_dev *dev = data;
2597 int ret;
2598
2599 ret = toshiba_wireless_status(dev);
2600 if (ret)
2601 return ret;
2602
2603 if (!dev->killswitch)
2604 return 0;
2605
2606 return toshiba_wwan_set(dev, !blocked);
2607 }
2608
2609 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2610 {
2611 struct toshiba_acpi_dev *dev = data;
2612
2613 if (toshiba_wireless_status(dev))
2614 return;
2615
2616 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2617 }
2618
2619 static const struct rfkill_ops wwan_rfk_ops = {
2620 .set_block = toshiba_acpi_wwan_set_block,
2621 .poll = toshiba_acpi_wwan_poll,
2622 };
2623
2624 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2625 {
2626 int ret = toshiba_wireless_status(dev);
2627
2628 if (ret)
2629 return ret;
2630
2631 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2632 &dev->acpi_dev->dev,
2633 RFKILL_TYPE_WWAN,
2634 &wwan_rfk_ops,
2635 dev);
2636 if (!dev->wwan_rfk) {
2637 pr_err("Unable to allocate WWAN rfkill device\n");
2638 return -ENOMEM;
2639 }
2640
2641 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2642
2643 ret = rfkill_register(dev->wwan_rfk);
2644 if (ret) {
2645 pr_err("Unable to register WWAN rfkill device\n");
2646 rfkill_destroy(dev->wwan_rfk);
2647 }
2648
2649 return ret;
2650 }
2651
2652 /*
2653 * Hotkeys
2654 */
2655 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2656 {
2657 acpi_status status;
2658 u32 result;
2659
2660 status = acpi_evaluate_object(dev->acpi_dev->handle,
2661 "ENAB", NULL, NULL);
2662 if (ACPI_FAILURE(status))
2663 return -ENODEV;
2664
2665 /*
2666 * Enable the "Special Functions" mode only if they are
2667 * supported and if they are activated.
2668 */
2669 if (dev->kbd_function_keys_supported && dev->special_functions)
2670 result = hci_write(dev, HCI_HOTKEY_EVENT,
2671 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2672 else
2673 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2674
2675 if (result == TOS_FAILURE)
2676 return -EIO;
2677 else if (result == TOS_NOT_SUPPORTED)
2678 return -ENODEV;
2679
2680 return 0;
2681 }
2682
2683 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2684 struct serio *port)
2685 {
2686 if (str & I8042_STR_AUXDATA)
2687 return false;
2688
2689 if (unlikely(data == 0xe0))
2690 return false;
2691
2692 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2693 schedule_work(&toshiba_acpi->hotkey_work);
2694 return true;
2695 }
2696
2697 return false;
2698 }
2699
2700 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2701 {
2702 acpi_handle ec_handle = ec_get_handle();
2703 acpi_status status;
2704
2705 if (!ec_handle)
2706 return;
2707
2708 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2709 if (ACPI_FAILURE(status))
2710 pr_err("ACPI NTFY method execution failed\n");
2711 }
2712
2713 /*
2714 * Returns hotkey scancode, or < 0 on failure.
2715 */
2716 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2717 {
2718 unsigned long long value;
2719 acpi_status status;
2720
2721 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2722 NULL, &value);
2723 if (ACPI_FAILURE(status)) {
2724 pr_err("ACPI INFO method execution failed\n");
2725 return -EIO;
2726 }
2727
2728 return value;
2729 }
2730
2731 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2732 int scancode)
2733 {
2734 if (scancode == 0x100)
2735 return;
2736
2737 /* Act on key press; ignore key release */
2738 if (scancode & 0x80)
2739 return;
2740
2741 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2742 pr_info("Unknown key %x\n", scancode);
2743 }
2744
2745 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2746 {
2747 if (dev->info_supported) {
2748 int scancode = toshiba_acpi_query_hotkey(dev);
2749
2750 if (scancode < 0) {
2751 pr_err("Failed to query hotkey event\n");
2752 } else if (scancode != 0) {
2753 toshiba_acpi_report_hotkey(dev, scancode);
2754 dev->key_event_valid = 1;
2755 dev->last_key_event = scancode;
2756 }
2757 } else if (dev->system_event_supported) {
2758 u32 result;
2759 u32 value;
2760 int retries = 3;
2761
2762 do {
2763 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2764 switch (result) {
2765 case TOS_SUCCESS:
2766 toshiba_acpi_report_hotkey(dev, (int)value);
2767 dev->key_event_valid = 1;
2768 dev->last_key_event = value;
2769 break;
2770 case TOS_NOT_SUPPORTED:
2771 /*
2772 * This is a workaround for an unresolved
2773 * issue on some machines where system events
2774 * sporadically become disabled.
2775 */
2776 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2777 if (result == TOS_SUCCESS)
2778 pr_notice("Re-enabled hotkeys\n");
2779 /* Fall through */
2780 default:
2781 retries--;
2782 break;
2783 }
2784 } while (retries && result != TOS_FIFO_EMPTY);
2785 }
2786 }
2787
2788 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2789 {
2790 const struct key_entry *keymap = toshiba_acpi_keymap;
2791 acpi_handle ec_handle;
2792 int error;
2793
2794 if (disable_hotkeys) {
2795 pr_info("Hotkeys disabled by module parameter\n");
2796 return 0;
2797 }
2798
2799 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2800 pr_info("WMI event detected, hotkeys will not be monitored\n");
2801 return 0;
2802 }
2803
2804 error = toshiba_acpi_enable_hotkeys(dev);
2805 if (error)
2806 return error;
2807
2808 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2809 pr_notice("Unable to query Hotkey Event Type\n");
2810
2811 dev->hotkey_dev = input_allocate_device();
2812 if (!dev->hotkey_dev)
2813 return -ENOMEM;
2814
2815 dev->hotkey_dev->name = "Toshiba input device";
2816 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2817 dev->hotkey_dev->id.bustype = BUS_HOST;
2818
2819 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2820 !dev->kbd_function_keys_supported)
2821 keymap = toshiba_acpi_keymap;
2822 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2823 dev->kbd_function_keys_supported)
2824 keymap = toshiba_acpi_alt_keymap;
2825 else
2826 pr_info("Unknown event type received %x\n",
2827 dev->hotkey_event_type);
2828 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2829 if (error)
2830 goto err_free_dev;
2831
2832 /*
2833 * For some machines the SCI responsible for providing hotkey
2834 * notification doesn't fire. We can trigger the notification
2835 * whenever the Fn key is pressed using the NTFY method, if
2836 * supported, so if it's present set up an i8042 key filter
2837 * for this purpose.
2838 */
2839 ec_handle = ec_get_handle();
2840 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2841 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2842
2843 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2844 if (error) {
2845 pr_err("Error installing key filter\n");
2846 goto err_free_dev;
2847 }
2848
2849 dev->ntfy_supported = 1;
2850 }
2851
2852 /*
2853 * Determine hotkey query interface. Prefer using the INFO
2854 * method when it is available.
2855 */
2856 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2857 dev->info_supported = 1;
2858 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2859 dev->system_event_supported = 1;
2860
2861 if (!dev->info_supported && !dev->system_event_supported) {
2862 pr_warn("No hotkey query interface found\n");
2863 goto err_remove_filter;
2864 }
2865
2866 error = input_register_device(dev->hotkey_dev);
2867 if (error) {
2868 pr_info("Unable to register input device\n");
2869 goto err_remove_filter;
2870 }
2871
2872 return 0;
2873
2874 err_remove_filter:
2875 if (dev->ntfy_supported)
2876 i8042_remove_filter(toshiba_acpi_i8042_filter);
2877 err_free_dev:
2878 input_free_device(dev->hotkey_dev);
2879 dev->hotkey_dev = NULL;
2880 return error;
2881 }
2882
2883 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2884 {
2885 struct backlight_properties props;
2886 int brightness;
2887 int ret;
2888
2889 /*
2890 * Some machines don't support the backlight methods at all, and
2891 * others support it read-only. Either of these is pretty useless,
2892 * so only register the backlight device if the backlight method
2893 * supports both reads and writes.
2894 */
2895 brightness = __get_lcd_brightness(dev);
2896 if (brightness < 0)
2897 return 0;
2898 /*
2899 * If transflective backlight is supported and the brightness is zero
2900 * (lowest brightness level), the set_lcd_brightness function will
2901 * activate the transflective backlight, making the LCD appear to be
2902 * turned off, simply increment the brightness level to avoid that.
2903 */
2904 if (dev->tr_backlight_supported && brightness == 0)
2905 brightness++;
2906 ret = set_lcd_brightness(dev, brightness);
2907 if (ret) {
2908 pr_debug("Backlight method is read-only, disabling backlight support\n");
2909 return 0;
2910 }
2911
2912 /*
2913 * Tell acpi-video-detect code to prefer vendor backlight on all
2914 * systems with transflective backlight and on dmi matched systems.
2915 */
2916 if (dev->tr_backlight_supported ||
2917 dmi_check_system(toshiba_vendor_backlight_dmi))
2918 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2919
2920 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2921 return 0;
2922
2923 memset(&props, 0, sizeof(props));
2924 props.type = BACKLIGHT_PLATFORM;
2925 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2926
2927 /* Adding an extra level and having 0 change to transflective mode */
2928 if (dev->tr_backlight_supported)
2929 props.max_brightness++;
2930
2931 dev->backlight_dev = backlight_device_register("toshiba",
2932 &dev->acpi_dev->dev,
2933 dev,
2934 &toshiba_backlight_data,
2935 &props);
2936 if (IS_ERR(dev->backlight_dev)) {
2937 ret = PTR_ERR(dev->backlight_dev);
2938 pr_err("Could not register toshiba backlight device\n");
2939 dev->backlight_dev = NULL;
2940 return ret;
2941 }
2942
2943 dev->backlight_dev->props.brightness = brightness;
2944 return 0;
2945 }
2946
2947 static void print_supported_features(struct toshiba_acpi_dev *dev)
2948 {
2949 pr_info("Supported laptop features:");
2950
2951 if (dev->hotkey_dev)
2952 pr_cont(" hotkeys");
2953 if (dev->backlight_dev)
2954 pr_cont(" backlight");
2955 if (dev->video_supported)
2956 pr_cont(" video-out");
2957 if (dev->fan_supported)
2958 pr_cont(" fan");
2959 if (dev->tr_backlight_supported)
2960 pr_cont(" transflective-backlight");
2961 if (dev->illumination_supported)
2962 pr_cont(" illumination");
2963 if (dev->kbd_illum_supported)
2964 pr_cont(" keyboard-backlight");
2965 if (dev->touchpad_supported)
2966 pr_cont(" touchpad");
2967 if (dev->eco_supported)
2968 pr_cont(" eco-led");
2969 if (dev->accelerometer_supported)
2970 pr_cont(" accelerometer-axes");
2971 if (dev->usb_sleep_charge_supported)
2972 pr_cont(" usb-sleep-charge");
2973 if (dev->usb_rapid_charge_supported)
2974 pr_cont(" usb-rapid-charge");
2975 if (dev->usb_sleep_music_supported)
2976 pr_cont(" usb-sleep-music");
2977 if (dev->kbd_function_keys_supported)
2978 pr_cont(" special-function-keys");
2979 if (dev->panel_power_on_supported)
2980 pr_cont(" panel-power-on");
2981 if (dev->usb_three_supported)
2982 pr_cont(" usb3");
2983 if (dev->wwan_supported)
2984 pr_cont(" wwan");
2985 if (dev->cooling_method_supported)
2986 pr_cont(" cooling-method");
2987
2988 pr_cont("\n");
2989 }
2990
2991 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2992 {
2993 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2994
2995 misc_deregister(&dev->miscdev);
2996
2997 remove_toshiba_proc_entries(dev);
2998
2999 if (dev->accelerometer_supported && dev->indio_dev) {
3000 iio_device_unregister(dev->indio_dev);
3001 iio_device_free(dev->indio_dev);
3002 }
3003
3004 if (dev->sysfs_created)
3005 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3006 &toshiba_attr_group);
3007
3008 if (dev->ntfy_supported) {
3009 i8042_remove_filter(toshiba_acpi_i8042_filter);
3010 cancel_work_sync(&dev->hotkey_work);
3011 }
3012
3013 if (dev->hotkey_dev)
3014 input_unregister_device(dev->hotkey_dev);
3015
3016 backlight_device_unregister(dev->backlight_dev);
3017
3018 if (dev->illumination_led_registered)
3019 led_classdev_unregister(&dev->led_dev);
3020
3021 if (dev->kbd_led_registered)
3022 led_classdev_unregister(&dev->kbd_led);
3023
3024 if (dev->eco_led_registered)
3025 led_classdev_unregister(&dev->eco_led);
3026
3027 if (dev->wwan_rfk) {
3028 rfkill_unregister(dev->wwan_rfk);
3029 rfkill_destroy(dev->wwan_rfk);
3030 }
3031
3032 if (toshiba_acpi)
3033 toshiba_acpi = NULL;
3034
3035 kfree(dev);
3036
3037 return 0;
3038 }
3039
3040 static const char *find_hci_method(acpi_handle handle)
3041 {
3042 if (acpi_has_method(handle, "GHCI"))
3043 return "GHCI";
3044
3045 if (acpi_has_method(handle, "SPFC"))
3046 return "SPFC";
3047
3048 return NULL;
3049 }
3050
3051 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3052 {
3053 struct toshiba_acpi_dev *dev;
3054 const char *hci_method;
3055 u32 dummy;
3056 int ret = 0;
3057
3058 if (toshiba_acpi)
3059 return -EBUSY;
3060
3061 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3062 TOSHIBA_ACPI_VERSION);
3063
3064 hci_method = find_hci_method(acpi_dev->handle);
3065 if (!hci_method) {
3066 pr_err("HCI interface not found\n");
3067 return -ENODEV;
3068 }
3069
3070 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3071 if (!dev)
3072 return -ENOMEM;
3073 dev->acpi_dev = acpi_dev;
3074 dev->method_hci = hci_method;
3075 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3076 dev->miscdev.name = "toshiba_acpi";
3077 dev->miscdev.fops = &toshiba_acpi_fops;
3078
3079 ret = misc_register(&dev->miscdev);
3080 if (ret) {
3081 pr_err("Failed to register miscdevice\n");
3082 kfree(dev);
3083 return ret;
3084 }
3085
3086 acpi_dev->driver_data = dev;
3087 dev_set_drvdata(&acpi_dev->dev, dev);
3088
3089 /* Query the BIOS for supported features */
3090
3091 /*
3092 * The "Special Functions" are always supported by the laptops
3093 * with the new keyboard layout, query for its presence to help
3094 * determine the keymap layout to use.
3095 */
3096 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3097 dev->kbd_function_keys_supported = !ret;
3098
3099 dev->hotkey_event_type = 0;
3100 if (toshiba_acpi_setup_keyboard(dev))
3101 pr_info("Unable to activate hotkeys\n");
3102
3103 /* Determine whether or not BIOS supports transflective backlight */
3104 ret = get_tr_backlight_status(dev, &dummy);
3105 dev->tr_backlight_supported = !ret;
3106
3107 ret = toshiba_acpi_setup_backlight(dev);
3108 if (ret)
3109 goto error;
3110
3111 toshiba_illumination_available(dev);
3112 if (dev->illumination_supported) {
3113 dev->led_dev.name = "toshiba::illumination";
3114 dev->led_dev.max_brightness = 1;
3115 dev->led_dev.brightness_set = toshiba_illumination_set;
3116 dev->led_dev.brightness_get = toshiba_illumination_get;
3117 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3118 dev->illumination_led_registered = true;
3119 }
3120
3121 toshiba_eco_mode_available(dev);
3122 if (dev->eco_supported) {
3123 dev->eco_led.name = "toshiba::eco_mode";
3124 dev->eco_led.max_brightness = 1;
3125 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3126 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3127 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3128 dev->eco_led_registered = true;
3129 }
3130
3131 toshiba_kbd_illum_available(dev);
3132 /*
3133 * Only register the LED if KBD illumination is supported
3134 * and the keyboard backlight operation mode is set to FN-Z
3135 */
3136 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
3137 dev->kbd_led.name = "toshiba::kbd_backlight";
3138 dev->kbd_led.max_brightness = 1;
3139 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3140 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3141 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3142 dev->kbd_led_registered = true;
3143 }
3144
3145 ret = toshiba_touchpad_get(dev, &dummy);
3146 dev->touchpad_supported = !ret;
3147
3148 toshiba_accelerometer_available(dev);
3149 if (dev->accelerometer_supported) {
3150 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3151 if (!dev->indio_dev) {
3152 pr_err("Unable to allocate iio device\n");
3153 goto iio_error;
3154 }
3155
3156 pr_info("Registering Toshiba accelerometer iio device\n");
3157
3158 dev->indio_dev->info = &toshiba_iio_accel_info;
3159 dev->indio_dev->name = "Toshiba accelerometer";
3160 dev->indio_dev->dev.parent = &acpi_dev->dev;
3161 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3162 dev->indio_dev->channels = toshiba_iio_accel_channels;
3163 dev->indio_dev->num_channels =
3164 ARRAY_SIZE(toshiba_iio_accel_channels);
3165
3166 ret = iio_device_register(dev->indio_dev);
3167 if (ret < 0) {
3168 pr_err("Unable to register iio device\n");
3169 iio_device_free(dev->indio_dev);
3170 }
3171 }
3172 iio_error:
3173
3174 toshiba_usb_sleep_charge_available(dev);
3175
3176 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3177 dev->usb_rapid_charge_supported = !ret;
3178
3179 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3180 dev->usb_sleep_music_supported = !ret;
3181
3182 ret = toshiba_panel_power_on_get(dev, &dummy);
3183 dev->panel_power_on_supported = !ret;
3184
3185 ret = toshiba_usb_three_get(dev, &dummy);
3186 dev->usb_three_supported = !ret;
3187
3188 ret = get_video_status(dev, &dummy);
3189 dev->video_supported = !ret;
3190
3191 ret = get_fan_status(dev, &dummy);
3192 dev->fan_supported = !ret;
3193
3194 toshiba_wwan_available(dev);
3195 if (dev->wwan_supported)
3196 toshiba_acpi_setup_wwan_rfkill(dev);
3197
3198 toshiba_cooling_method_available(dev);
3199
3200 print_supported_features(dev);
3201
3202 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3203 &toshiba_attr_group);
3204 if (ret) {
3205 dev->sysfs_created = 0;
3206 goto error;
3207 }
3208 dev->sysfs_created = !ret;
3209
3210 create_toshiba_proc_entries(dev);
3211
3212 toshiba_acpi = dev;
3213
3214 return 0;
3215
3216 error:
3217 toshiba_acpi_remove(acpi_dev);
3218 return ret;
3219 }
3220
3221 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3222 {
3223 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3224
3225 switch (event) {
3226 case 0x80: /* Hotkeys and some system events */
3227 /*
3228 * Machines with this WMI GUID aren't supported due to bugs in
3229 * their AML.
3230 *
3231 * Return silently to avoid triggering a netlink event.
3232 */
3233 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3234 return;
3235 toshiba_acpi_process_hotkeys(dev);
3236 break;
3237 case 0x81: /* Dock events */
3238 case 0x82:
3239 case 0x83:
3240 pr_info("Dock event received %x\n", event);
3241 break;
3242 case 0x88: /* Thermal events */
3243 pr_info("Thermal event received\n");
3244 break;
3245 case 0x8f: /* LID closed */
3246 case 0x90: /* LID is closed and Dock has been ejected */
3247 break;
3248 case 0x8c: /* SATA power events */
3249 case 0x8b:
3250 pr_info("SATA power event received %x\n", event);
3251 break;
3252 case 0x92: /* Keyboard backlight mode changed */
3253 toshiba_acpi->kbd_event_generated = true;
3254 /* Update sysfs entries */
3255 if (sysfs_update_group(&acpi_dev->dev.kobj,
3256 &toshiba_attr_group))
3257 pr_err("Unable to update sysfs entries\n");
3258 break;
3259 case 0x85: /* Unknown */
3260 case 0x8d: /* Unknown */
3261 case 0x8e: /* Unknown */
3262 case 0x94: /* Unknown */
3263 case 0x95: /* Unknown */
3264 default:
3265 pr_info("Unknown event received %x\n", event);
3266 break;
3267 }
3268
3269 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3270 dev_name(&acpi_dev->dev),
3271 event, (event == 0x80) ?
3272 dev->last_key_event : 0);
3273 }
3274
3275 #ifdef CONFIG_PM_SLEEP
3276 static int toshiba_acpi_suspend(struct device *device)
3277 {
3278 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3279
3280 if (dev->hotkey_dev) {
3281 u32 result;
3282
3283 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3284 if (result != TOS_SUCCESS)
3285 pr_info("Unable to disable hotkeys\n");
3286 }
3287
3288 return 0;
3289 }
3290
3291 static int toshiba_acpi_resume(struct device *device)
3292 {
3293 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3294
3295 if (dev->hotkey_dev) {
3296 if (toshiba_acpi_enable_hotkeys(dev))
3297 pr_info("Unable to re-enable hotkeys\n");
3298 }
3299
3300 if (dev->wwan_rfk) {
3301 if (!toshiba_wireless_status(dev))
3302 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3303 }
3304
3305 return 0;
3306 }
3307 #endif
3308
3309 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3310 toshiba_acpi_suspend, toshiba_acpi_resume);
3311
3312 static struct acpi_driver toshiba_acpi_driver = {
3313 .name = "Toshiba ACPI driver",
3314 .owner = THIS_MODULE,
3315 .ids = toshiba_device_ids,
3316 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3317 .ops = {
3318 .add = toshiba_acpi_add,
3319 .remove = toshiba_acpi_remove,
3320 .notify = toshiba_acpi_notify,
3321 },
3322 .drv.pm = &toshiba_acpi_pm,
3323 };
3324
3325 static int __init toshiba_acpi_init(void)
3326 {
3327 int ret;
3328
3329 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3330 if (!toshiba_proc_dir) {
3331 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3332 return -ENODEV;
3333 }
3334
3335 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3336 if (ret) {
3337 pr_err("Failed to register ACPI driver: %d\n", ret);
3338 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3339 }
3340
3341 return ret;
3342 }
3343
3344 static void __exit toshiba_acpi_exit(void)
3345 {
3346 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3347 if (toshiba_proc_dir)
3348 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3349 }
3350
3351 module_init(toshiba_acpi_init);
3352 module_exit(toshiba_acpi_exit);
Linux with added FPC-III support