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Revert "ALSA: hda: Flush interrupts on disabling"
[linux/fpc-iii.git] / drivers / platform / x86 / toshiba_acpi.c
blob79a22893707299684e0f2c5d5b5fd4cb0b73688a
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/compiler.h>
38 #include <linux/kernel.h>
39 #include <linux/module.h>
40 #include <linux/moduleparam.h>
41 #include <linux/init.h>
42 #include <linux/types.h>
43 #include <linux/proc_fs.h>
44 #include <linux/seq_file.h>
45 #include <linux/backlight.h>
46 #include <linux/input.h>
47 #include <linux/input/sparse-keymap.h>
48 #include <linux/leds.h>
49 #include <linux/slab.h>
50 #include <linux/workqueue.h>
51 #include <linux/i8042.h>
52 #include <linux/acpi.h>
53 #include <linux/dmi.h>
54 #include <linux/uaccess.h>
55 #include <linux/miscdevice.h>
56 #include <linux/rfkill.h>
57 #include <linux/iio/iio.h>
58 #include <linux/toshiba.h>
59 #include <acpi/video.h>
60
61 MODULE_AUTHOR("John Belmonte");
62 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
63 MODULE_LICENSE("GPL");
64
65 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
66
67 /* Scan code for Fn key on TOS1900 models */
68 #define TOS1900_FN_SCAN 0x6e
69
70 /* Toshiba ACPI method paths */
71 #define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
72
73 /*
74 * The Toshiba configuration interface is composed of the HCI and the SCI,
75 * which are defined as follows:
76 *
77 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
78 * be uniform across all their models. Ideally we would just call
79 * dedicated ACPI methods instead of using this primitive interface.
80 * However the ACPI methods seem to be incomplete in some areas (for
81 * example they allow setting, but not reading, the LCD brightness value),
82 * so this is still useful.
83 *
84 * SCI stands for "System Configuration Interface" which aim is to
85 * conceal differences in hardware between different models.
86 */
87
88 #define TCI_WORDS 6
89
90 /* Operations */
91 #define HCI_SET 0xff00
92 #define HCI_GET 0xfe00
93 #define SCI_OPEN 0xf100
94 #define SCI_CLOSE 0xf200
95 #define SCI_GET 0xf300
96 #define SCI_SET 0xf400
97
98 /* Return codes */
99 #define TOS_SUCCESS 0x0000
100 #define TOS_SUCCESS2 0x0001
101 #define TOS_OPEN_CLOSE_OK 0x0044
102 #define TOS_FAILURE 0x1000
103 #define TOS_NOT_SUPPORTED 0x8000
104 #define TOS_ALREADY_OPEN 0x8100
105 #define TOS_NOT_OPENED 0x8200
106 #define TOS_INPUT_DATA_ERROR 0x8300
107 #define TOS_WRITE_PROTECTED 0x8400
108 #define TOS_NOT_PRESENT 0x8600
109 #define TOS_FIFO_EMPTY 0x8c00
110 #define TOS_DATA_NOT_AVAILABLE 0x8d20
111 #define TOS_NOT_INITIALIZED 0x8d50
112 #define TOS_NOT_INSTALLED 0x8e00
113
114 /* Registers */
115 #define HCI_FAN 0x0004
116 #define HCI_TR_BACKLIGHT 0x0005
117 #define HCI_SYSTEM_EVENT 0x0016
118 #define HCI_VIDEO_OUT 0x001c
119 #define HCI_HOTKEY_EVENT 0x001e
120 #define HCI_LCD_BRIGHTNESS 0x002a
121 #define HCI_WIRELESS 0x0056
122 #define HCI_ACCELEROMETER 0x006d
123 #define HCI_COOLING_METHOD 0x007f
124 #define HCI_KBD_ILLUMINATION 0x0095
125 #define HCI_ECO_MODE 0x0097
126 #define HCI_ACCELEROMETER2 0x00a6
127 #define HCI_SYSTEM_INFO 0xc000
128 #define SCI_PANEL_POWER_ON 0x010d
129 #define SCI_ILLUMINATION 0x014e
130 #define SCI_USB_SLEEP_CHARGE 0x0150
131 #define SCI_KBD_ILLUM_STATUS 0x015c
132 #define SCI_USB_SLEEP_MUSIC 0x015e
133 #define SCI_USB_THREE 0x0169
134 #define SCI_TOUCHPAD 0x050e
135 #define SCI_KBD_FUNCTION_KEYS 0x0522
136
137 /* Field definitions */
138 #define HCI_ACCEL_MASK 0x7fff
139 #define HCI_ACCEL_DIRECTION_MASK 0x8000
140 #define HCI_HOTKEY_DISABLE 0x0b
141 #define HCI_HOTKEY_ENABLE 0x09
142 #define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
143 #define HCI_LCD_BRIGHTNESS_BITS 3
144 #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
145 #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
146 #define HCI_MISC_SHIFT 0x10
147 #define HCI_SYSTEM_TYPE1 0x10
148 #define HCI_SYSTEM_TYPE2 0x11
149 #define HCI_VIDEO_OUT_LCD 0x1
150 #define HCI_VIDEO_OUT_CRT 0x2
151 #define HCI_VIDEO_OUT_TV 0x4
152 #define SCI_KBD_MODE_MASK 0x1f
153 #define SCI_KBD_MODE_FNZ 0x1
154 #define SCI_KBD_MODE_AUTO 0x2
155 #define SCI_KBD_MODE_ON 0x8
156 #define SCI_KBD_MODE_OFF 0x10
157 #define SCI_KBD_TIME_MAX 0x3c001a
158 #define HCI_WIRELESS_STATUS 0x1
159 #define HCI_WIRELESS_WWAN 0x3
160 #define HCI_WIRELESS_WWAN_STATUS 0x2000
161 #define HCI_WIRELESS_WWAN_POWER 0x4000
162 #define SCI_USB_CHARGE_MODE_MASK 0xff
163 #define SCI_USB_CHARGE_DISABLED 0x00
164 #define SCI_USB_CHARGE_ALTERNATE 0x09
165 #define SCI_USB_CHARGE_TYPICAL 0x11
166 #define SCI_USB_CHARGE_AUTO 0x21
167 #define SCI_USB_CHARGE_BAT_MASK 0x7
168 #define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
169 #define SCI_USB_CHARGE_BAT_LVL_ON 0x4
170 #define SCI_USB_CHARGE_BAT_LVL 0x0200
171 #define SCI_USB_CHARGE_RAPID_DSP 0x0300
172
173 struct toshiba_acpi_dev {
174 struct acpi_device *acpi_dev;
175 const char *method_hci;
176 struct input_dev *hotkey_dev;
177 struct work_struct hotkey_work;
178 struct backlight_device *backlight_dev;
179 struct led_classdev led_dev;
180 struct led_classdev kbd_led;
181 struct led_classdev eco_led;
182 struct miscdevice miscdev;
183 struct rfkill *wwan_rfk;
184 struct iio_dev *indio_dev;
185
186 int force_fan;
187 int last_key_event;
188 int key_event_valid;
189 int kbd_type;
190 int kbd_mode;
191 int kbd_time;
192 int usbsc_bat_level;
193 int usbsc_mode_base;
194 int hotkey_event_type;
195 int max_cooling_method;
196
197 unsigned int illumination_supported:1;
198 unsigned int video_supported:1;
199 unsigned int fan_supported:1;
200 unsigned int system_event_supported:1;
201 unsigned int ntfy_supported:1;
202 unsigned int info_supported:1;
203 unsigned int tr_backlight_supported:1;
204 unsigned int kbd_illum_supported:1;
205 unsigned int touchpad_supported:1;
206 unsigned int eco_supported:1;
207 unsigned int accelerometer_supported:1;
208 unsigned int usb_sleep_charge_supported:1;
209 unsigned int usb_rapid_charge_supported:1;
210 unsigned int usb_sleep_music_supported:1;
211 unsigned int kbd_function_keys_supported:1;
212 unsigned int panel_power_on_supported:1;
213 unsigned int usb_three_supported:1;
214 unsigned int wwan_supported:1;
215 unsigned int cooling_method_supported:1;
216 unsigned int sysfs_created:1;
217 unsigned int special_functions;
218
219 bool kbd_event_generated;
220 bool kbd_led_registered;
221 bool illumination_led_registered;
222 bool eco_led_registered;
223 bool killswitch;
224 };
225
226 static struct toshiba_acpi_dev *toshiba_acpi;
227
228 static bool disable_hotkeys;
229 module_param(disable_hotkeys, bool, 0444);
230 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
231
232 static const struct acpi_device_id toshiba_device_ids[] = {
233 {"TOS6200", 0},
234 {"TOS6207", 0},
235 {"TOS6208", 0},
236 {"TOS1900", 0},
237 {"", 0},
238 };
239 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
240
241 static const struct key_entry toshiba_acpi_keymap[] = {
242 { KE_KEY, 0x9e, { KEY_RFKILL } },
243 { KE_KEY, 0x101, { KEY_MUTE } },
244 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
245 { KE_KEY, 0x103, { KEY_ZOOMIN } },
246 { KE_KEY, 0x10f, { KEY_TAB } },
247 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
248 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
249 { KE_KEY, 0x13b, { KEY_COFFEE } },
250 { KE_KEY, 0x13c, { KEY_BATTERY } },
251 { KE_KEY, 0x13d, { KEY_SLEEP } },
252 { KE_KEY, 0x13e, { KEY_SUSPEND } },
253 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
254 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
255 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
256 { KE_KEY, 0x142, { KEY_WLAN } },
257 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
258 { KE_KEY, 0x17f, { KEY_FN } },
259 { KE_KEY, 0xb05, { KEY_PROG2 } },
260 { KE_KEY, 0xb06, { KEY_WWW } },
261 { KE_KEY, 0xb07, { KEY_MAIL } },
262 { KE_KEY, 0xb30, { KEY_STOP } },
263 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
264 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
265 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
266 { KE_KEY, 0xb5a, { KEY_MEDIA } },
267 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
268 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
269 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
270 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
271 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
272 { KE_END, 0 },
273 };
274
275 static const struct key_entry toshiba_acpi_alt_keymap[] = {
276 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
277 { KE_KEY, 0x103, { KEY_ZOOMIN } },
278 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
279 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
280 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
281 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
282 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
283 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
284 { KE_KEY, 0x157, { KEY_MUTE } },
285 { KE_KEY, 0x158, { KEY_WLAN } },
286 { KE_END, 0 },
287 };
288
289 /*
290 * List of models which have a broken acpi-video backlight interface and thus
291 * need to use the toshiba (vendor) interface instead.
292 */
293 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
294 {}
295 };
296
297 /*
298 * Utility
299 */
300
301 static inline void _set_bit(u32 *word, u32 mask, int value)
302 {
303 *word = (*word & ~mask) | (mask * value);
304 }
305
306 /*
307 * ACPI interface wrappers
308 */
309
310 static int write_acpi_int(const char *methodName, int val)
311 {
312 acpi_status status;
313
314 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
315 return (status == AE_OK) ? 0 : -EIO;
316 }
317
318 /*
319 * Perform a raw configuration call. Here we don't care about input or output
320 * buffer format.
321 */
322 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
323 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
324 {
325 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
326 struct acpi_object_list params;
327 struct acpi_buffer results;
328 acpi_status status;
329 int i;
330
331 params.count = TCI_WORDS;
332 params.pointer = in_objs;
333 for (i = 0; i < TCI_WORDS; ++i) {
334 in_objs[i].type = ACPI_TYPE_INTEGER;
335 in_objs[i].integer.value = in[i];
336 }
337
338 results.length = sizeof(out_objs);
339 results.pointer = out_objs;
340
341 status = acpi_evaluate_object(dev->acpi_dev->handle,
342 (char *)dev->method_hci, &params,
343 &results);
344 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
345 for (i = 0; i < out_objs->package.count; ++i)
346 out[i] = out_objs->package.elements[i].integer.value;
347 }
348
349 return status;
350 }
351
352 /*
353 * Common hci tasks
354 *
355 * In addition to the ACPI status, the HCI system returns a result which
356 * may be useful (such as "not supported").
357 */
358
359 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
360 {
361 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
362 u32 out[TCI_WORDS];
363 acpi_status status = tci_raw(dev, in, out);
364
365 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
366 }
367
368 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
369 {
370 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
371 u32 out[TCI_WORDS];
372 acpi_status status = tci_raw(dev, in, out);
373
374 if (ACPI_FAILURE(status))
375 return TOS_FAILURE;
376
377 *out1 = out[2];
378
379 return out[0];
380 }
381
382 /*
383 * Common sci tasks
384 */
385
386 static int sci_open(struct toshiba_acpi_dev *dev)
387 {
388 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
389 u32 out[TCI_WORDS];
390 acpi_status status = tci_raw(dev, in, out);
391
392 if (ACPI_FAILURE(status)) {
393 pr_err("ACPI call to open SCI failed\n");
394 return 0;
395 }
396
397 if (out[0] == TOS_OPEN_CLOSE_OK) {
398 return 1;
399 } else if (out[0] == TOS_ALREADY_OPEN) {
400 pr_info("Toshiba SCI already opened\n");
401 return 1;
402 } else if (out[0] == TOS_NOT_SUPPORTED) {
403 /*
404 * Some BIOSes do not have the SCI open/close functions
405 * implemented and return 0x8000 (Not Supported), failing to
406 * register some supported features.
407 *
408 * Simply return 1 if we hit those affected laptops to make the
409 * supported features work.
410 *
411 * In the case that some laptops really do not support the SCI,
412 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
413 * and thus, not registering support for the queried feature.
414 */
415 return 1;
416 } else if (out[0] == TOS_NOT_PRESENT) {
417 pr_info("Toshiba SCI is not present\n");
418 }
419
420 return 0;
421 }
422
423 static void sci_close(struct toshiba_acpi_dev *dev)
424 {
425 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
426 u32 out[TCI_WORDS];
427 acpi_status status = tci_raw(dev, in, out);
428
429 if (ACPI_FAILURE(status)) {
430 pr_err("ACPI call to close SCI failed\n");
431 return;
432 }
433
434 if (out[0] == TOS_OPEN_CLOSE_OK)
435 return;
436 else if (out[0] == TOS_NOT_OPENED)
437 pr_info("Toshiba SCI not opened\n");
438 else if (out[0] == TOS_NOT_PRESENT)
439 pr_info("Toshiba SCI is not present\n");
440 }
441
442 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
443 {
444 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
445 u32 out[TCI_WORDS];
446 acpi_status status = tci_raw(dev, in, out);
447
448 if (ACPI_FAILURE(status))
449 return TOS_FAILURE;
450
451 *out1 = out[2];
452
453 return out[0];
454 }
455
456 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
457 {
458 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
459 u32 out[TCI_WORDS];
460 acpi_status status = tci_raw(dev, in, out);
461
462 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
463 }
464
465 /* Illumination support */
466 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
467 {
468 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
469 u32 out[TCI_WORDS];
470 acpi_status status;
471
472 dev->illumination_supported = 0;
473 dev->illumination_led_registered = false;
474
475 if (!sci_open(dev))
476 return;
477
478 status = tci_raw(dev, in, out);
479 sci_close(dev);
480 if (ACPI_FAILURE(status)) {
481 pr_err("ACPI call to query Illumination support failed\n");
482 return;
483 }
484
485 if (out[0] != TOS_SUCCESS)
486 return;
487
488 dev->illumination_supported = 1;
489 }
490
491 static void toshiba_illumination_set(struct led_classdev *cdev,
492 enum led_brightness brightness)
493 {
494 struct toshiba_acpi_dev *dev = container_of(cdev,
495 struct toshiba_acpi_dev, led_dev);
496 u32 result;
497 u32 state;
498
499 /* First request : initialize communication. */
500 if (!sci_open(dev))
501 return;
502
503 /* Switch the illumination on/off */
504 state = brightness ? 1 : 0;
505 result = sci_write(dev, SCI_ILLUMINATION, state);
506 sci_close(dev);
507 if (result == TOS_FAILURE)
508 pr_err("ACPI call for illumination failed\n");
509 }
510
511 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
512 {
513 struct toshiba_acpi_dev *dev = container_of(cdev,
514 struct toshiba_acpi_dev, led_dev);
515 u32 result;
516 u32 state;
517
518 /* First request : initialize communication. */
519 if (!sci_open(dev))
520 return LED_OFF;
521
522 /* Check the illumination */
523 result = sci_read(dev, SCI_ILLUMINATION, &state);
524 sci_close(dev);
525 if (result == TOS_FAILURE) {
526 pr_err("ACPI call for illumination failed\n");
527 return LED_OFF;
528 } else if (result != TOS_SUCCESS) {
529 return LED_OFF;
530 }
531
532 return state ? LED_FULL : LED_OFF;
533 }
534
535 /* KBD Illumination */
536 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
537 {
538 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
539 u32 out[TCI_WORDS];
540 acpi_status status;
541
542 dev->kbd_illum_supported = 0;
543 dev->kbd_led_registered = false;
544 dev->kbd_event_generated = false;
545
546 if (!sci_open(dev))
547 return;
548
549 status = tci_raw(dev, in, out);
550 sci_close(dev);
551 if (ACPI_FAILURE(status)) {
552 pr_err("ACPI call to query kbd illumination support failed\n");
553 return;
554 }
555
556 if (out[0] != TOS_SUCCESS)
557 return;
558
559 /*
560 * Check for keyboard backlight timeout max value,
561 * previous kbd backlight implementation set this to
562 * 0x3c0003, and now the new implementation set this
563 * to 0x3c001a, use this to distinguish between them.
564 */
565 if (out[3] == SCI_KBD_TIME_MAX)
566 dev->kbd_type = 2;
567 else
568 dev->kbd_type = 1;
569 /* Get the current keyboard backlight mode */
570 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
571 /* Get the current time (1-60 seconds) */
572 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
573 /* Flag as supported */
574 dev->kbd_illum_supported = 1;
575 }
576
577 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
578 {
579 u32 result;
580
581 if (!sci_open(dev))
582 return -EIO;
583
584 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
585 sci_close(dev);
586 if (result == TOS_FAILURE)
587 pr_err("ACPI call to set KBD backlight status failed\n");
588 else if (result == TOS_NOT_SUPPORTED)
589 return -ENODEV;
590
591 return result == TOS_SUCCESS ? 0 : -EIO;
592 }
593
594 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
595 {
596 u32 result;
597
598 if (!sci_open(dev))
599 return -EIO;
600
601 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
602 sci_close(dev);
603 if (result == TOS_FAILURE)
604 pr_err("ACPI call to get KBD backlight status failed\n");
605 else if (result == TOS_NOT_SUPPORTED)
606 return -ENODEV;
607
608 return result == TOS_SUCCESS ? 0 : -EIO;
609 }
610
611 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
612 {
613 struct toshiba_acpi_dev *dev = container_of(cdev,
614 struct toshiba_acpi_dev, kbd_led);
615 u32 result;
616 u32 state;
617
618 /* Check the keyboard backlight state */
619 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
620 if (result == TOS_FAILURE) {
621 pr_err("ACPI call to get the keyboard backlight failed\n");
622 return LED_OFF;
623 } else if (result != TOS_SUCCESS) {
624 return LED_OFF;
625 }
626
627 return state ? LED_FULL : LED_OFF;
628 }
629
630 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
631 enum led_brightness brightness)
632 {
633 struct toshiba_acpi_dev *dev = container_of(cdev,
634 struct toshiba_acpi_dev, kbd_led);
635 u32 result;
636 u32 state;
637
638 /* Set the keyboard backlight state */
639 state = brightness ? 1 : 0;
640 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
641 if (result == TOS_FAILURE)
642 pr_err("ACPI call to set KBD Illumination mode failed\n");
643 }
644
645 /* TouchPad support */
646 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
647 {
648 u32 result;
649
650 if (!sci_open(dev))
651 return -EIO;
652
653 result = sci_write(dev, SCI_TOUCHPAD, state);
654 sci_close(dev);
655 if (result == TOS_FAILURE)
656 pr_err("ACPI call to set the touchpad failed\n");
657 else if (result == TOS_NOT_SUPPORTED)
658 return -ENODEV;
659
660 return result == TOS_SUCCESS ? 0 : -EIO;
661 }
662
663 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
664 {
665 u32 result;
666
667 if (!sci_open(dev))
668 return -EIO;
669
670 result = sci_read(dev, SCI_TOUCHPAD, state);
671 sci_close(dev);
672 if (result == TOS_FAILURE)
673 pr_err("ACPI call to query the touchpad failed\n");
674 else if (result == TOS_NOT_SUPPORTED)
675 return -ENODEV;
676
677 return result == TOS_SUCCESS ? 0 : -EIO;
678 }
679
680 /* Eco Mode support */
681 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
682 {
683 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
684 u32 out[TCI_WORDS];
685 acpi_status status;
686
687 dev->eco_supported = 0;
688 dev->eco_led_registered = false;
689
690 status = tci_raw(dev, in, out);
691 if (ACPI_FAILURE(status)) {
692 pr_err("ACPI call to get ECO led failed\n");
693 return;
694 }
695
696 if (out[0] == TOS_INPUT_DATA_ERROR) {
697 /*
698 * If we receive 0x8300 (Input Data Error), it means that the
699 * LED device is present, but that we just screwed the input
700 * parameters.
701 *
702 * Let's query the status of the LED to see if we really have a
703 * success response, indicating the actual presense of the LED,
704 * bail out otherwise.
705 */
706 in[3] = 1;
707 status = tci_raw(dev, in, out);
708 if (ACPI_FAILURE(status)) {
709 pr_err("ACPI call to get ECO led failed\n");
710 return;
711 }
712
713 if (out[0] != TOS_SUCCESS)
714 return;
715
716 dev->eco_supported = 1;
717 }
718 }
719
720 static enum led_brightness
721 toshiba_eco_mode_get_status(struct led_classdev *cdev)
722 {
723 struct toshiba_acpi_dev *dev = container_of(cdev,
724 struct toshiba_acpi_dev, eco_led);
725 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
726 u32 out[TCI_WORDS];
727 acpi_status status;
728
729 status = tci_raw(dev, in, out);
730 if (ACPI_FAILURE(status)) {
731 pr_err("ACPI call to get ECO led failed\n");
732 return LED_OFF;
733 }
734
735 if (out[0] != TOS_SUCCESS)
736 return LED_OFF;
737
738 return out[2] ? LED_FULL : LED_OFF;
739 }
740
741 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
742 enum led_brightness brightness)
743 {
744 struct toshiba_acpi_dev *dev = container_of(cdev,
745 struct toshiba_acpi_dev, eco_led);
746 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
747 u32 out[TCI_WORDS];
748 acpi_status status;
749
750 /* Switch the Eco Mode led on/off */
751 in[2] = (brightness) ? 1 : 0;
752 status = tci_raw(dev, in, out);
753 if (ACPI_FAILURE(status))
754 pr_err("ACPI call to set ECO led failed\n");
755 }
756
757 /* Accelerometer support */
758 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
759 {
760 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
761 u32 out[TCI_WORDS];
762 acpi_status status;
763
764 dev->accelerometer_supported = 0;
765
766 /*
767 * Check if the accelerometer call exists,
768 * this call also serves as initialization
769 */
770 status = tci_raw(dev, in, out);
771 if (ACPI_FAILURE(status)) {
772 pr_err("ACPI call to query the accelerometer failed\n");
773 return;
774 }
775
776 if (out[0] != TOS_SUCCESS)
777 return;
778
779 dev->accelerometer_supported = 1;
780 }
781
782 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
783 u32 *xy, u32 *z)
784 {
785 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
786 u32 out[TCI_WORDS];
787 acpi_status status;
788
789 /* Check the Accelerometer status */
790 status = tci_raw(dev, in, out);
791 if (ACPI_FAILURE(status)) {
792 pr_err("ACPI call to query the accelerometer failed\n");
793 return -EIO;
794 }
795
796 if (out[0] == TOS_NOT_SUPPORTED)
797 return -ENODEV;
798
799 if (out[0] != TOS_SUCCESS)
800 return -EIO;
801
802 *xy = out[2];
803 *z = out[4];
804
805 return 0;
806 }
807
808 /* Sleep (Charge and Music) utilities support */
809 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
810 {
811 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
812 u32 out[TCI_WORDS];
813 acpi_status status;
814
815 dev->usb_sleep_charge_supported = 0;
816
817 if (!sci_open(dev))
818 return;
819
820 status = tci_raw(dev, in, out);
821 if (ACPI_FAILURE(status)) {
822 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
823 sci_close(dev);
824 return;
825 }
826
827 if (out[0] != TOS_SUCCESS) {
828 sci_close(dev);
829 return;
830 }
831
832 dev->usbsc_mode_base = out[4];
833
834 in[5] = SCI_USB_CHARGE_BAT_LVL;
835 status = tci_raw(dev, in, out);
836 sci_close(dev);
837 if (ACPI_FAILURE(status)) {
838 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
839 return;
840 }
841
842 if (out[0] != TOS_SUCCESS)
843 return;
844
845 dev->usbsc_bat_level = out[2];
846 /* Flag as supported */
847 dev->usb_sleep_charge_supported = 1;
848 }
849
850 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
851 u32 *mode)
852 {
853 u32 result;
854
855 if (!sci_open(dev))
856 return -EIO;
857
858 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
859 sci_close(dev);
860 if (result == TOS_FAILURE)
861 pr_err("ACPI call to set USB S&C mode failed\n");
862 else if (result == TOS_NOT_SUPPORTED)
863 return -ENODEV;
864
865 return result == TOS_SUCCESS ? 0 : -EIO;
866 }
867
868 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
869 u32 mode)
870 {
871 u32 result;
872
873 if (!sci_open(dev))
874 return -EIO;
875
876 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
877 sci_close(dev);
878 if (result == TOS_FAILURE)
879 pr_err("ACPI call to set USB S&C mode failed\n");
880 else if (result == TOS_NOT_SUPPORTED)
881 return -ENODEV;
882
883 return result == TOS_SUCCESS ? 0 : -EIO;
884 }
885
886 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
887 u32 *mode)
888 {
889 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
890 u32 out[TCI_WORDS];
891 acpi_status status;
892
893 if (!sci_open(dev))
894 return -EIO;
895
896 in[5] = SCI_USB_CHARGE_BAT_LVL;
897 status = tci_raw(dev, in, out);
898 sci_close(dev);
899 if (ACPI_FAILURE(status)) {
900 pr_err("ACPI call to get USB S&C battery level failed\n");
901 return -EIO;
902 }
903
904 if (out[0] == TOS_NOT_SUPPORTED)
905 return -ENODEV;
906
907 if (out[0] != TOS_SUCCESS)
908 return -EIO;
909
910 *mode = out[2];
911
912 return 0;
913
914 }
915
916 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
917 u32 mode)
918 {
919 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
920 u32 out[TCI_WORDS];
921 acpi_status status;
922
923 if (!sci_open(dev))
924 return -EIO;
925
926 in[2] = mode;
927 in[5] = SCI_USB_CHARGE_BAT_LVL;
928 status = tci_raw(dev, in, out);
929 sci_close(dev);
930 if (ACPI_FAILURE(status)) {
931 pr_err("ACPI call to set USB S&C battery level failed\n");
932 return -EIO;
933 }
934
935 if (out[0] == TOS_NOT_SUPPORTED)
936 return -ENODEV;
937
938 return out[0] == TOS_SUCCESS ? 0 : -EIO;
939 }
940
941 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
942 u32 *state)
943 {
944 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
945 u32 out[TCI_WORDS];
946 acpi_status status;
947
948 if (!sci_open(dev))
949 return -EIO;
950
951 in[5] = SCI_USB_CHARGE_RAPID_DSP;
952 status = tci_raw(dev, in, out);
953 sci_close(dev);
954 if (ACPI_FAILURE(status)) {
955 pr_err("ACPI call to get USB Rapid Charge failed\n");
956 return -EIO;
957 }
958
959 if (out[0] == TOS_NOT_SUPPORTED)
960 return -ENODEV;
961
962 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
963 return -EIO;
964
965 *state = out[2];
966
967 return 0;
968 }
969
970 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
971 u32 state)
972 {
973 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
974 u32 out[TCI_WORDS];
975 acpi_status status;
976
977 if (!sci_open(dev))
978 return -EIO;
979
980 in[2] = state;
981 in[5] = SCI_USB_CHARGE_RAPID_DSP;
982 status = tci_raw(dev, in, out);
983 sci_close(dev);
984 if (ACPI_FAILURE(status)) {
985 pr_err("ACPI call to set USB Rapid Charge failed\n");
986 return -EIO;
987 }
988
989 if (out[0] == TOS_NOT_SUPPORTED)
990 return -ENODEV;
991
992 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
993 }
994
995 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
996 {
997 u32 result;
998
999 if (!sci_open(dev))
1000 return -EIO;
1001
1002 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
1003 sci_close(dev);
1004 if (result == TOS_FAILURE)
1005 pr_err("ACPI call to get Sleep and Music failed\n");
1006 else if (result == TOS_NOT_SUPPORTED)
1007 return -ENODEV;
1008
1009 return result == TOS_SUCCESS ? 0 : -EIO;
1010 }
1011
1012 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1013 {
1014 u32 result;
1015
1016 if (!sci_open(dev))
1017 return -EIO;
1018
1019 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1020 sci_close(dev);
1021 if (result == TOS_FAILURE)
1022 pr_err("ACPI call to set Sleep and Music failed\n");
1023 else if (result == TOS_NOT_SUPPORTED)
1024 return -ENODEV;
1025
1026 return result == TOS_SUCCESS ? 0 : -EIO;
1027 }
1028
1029 /* Keyboard function keys */
1030 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1031 {
1032 u32 result;
1033
1034 if (!sci_open(dev))
1035 return -EIO;
1036
1037 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1038 sci_close(dev);
1039 if (result == TOS_FAILURE)
1040 pr_err("ACPI call to get KBD function keys failed\n");
1041 else if (result == TOS_NOT_SUPPORTED)
1042 return -ENODEV;
1043
1044 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1045 }
1046
1047 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1048 {
1049 u32 result;
1050
1051 if (!sci_open(dev))
1052 return -EIO;
1053
1054 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1055 sci_close(dev);
1056 if (result == TOS_FAILURE)
1057 pr_err("ACPI call to set KBD function keys failed\n");
1058 else if (result == TOS_NOT_SUPPORTED)
1059 return -ENODEV;
1060
1061 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1062 }
1063
1064 /* Panel Power ON */
1065 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1066 {
1067 u32 result;
1068
1069 if (!sci_open(dev))
1070 return -EIO;
1071
1072 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1073 sci_close(dev);
1074 if (result == TOS_FAILURE)
1075 pr_err("ACPI call to get Panel Power ON failed\n");
1076 else if (result == TOS_NOT_SUPPORTED)
1077 return -ENODEV;
1078
1079 return result == TOS_SUCCESS ? 0 : -EIO;
1080 }
1081
1082 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1083 {
1084 u32 result;
1085
1086 if (!sci_open(dev))
1087 return -EIO;
1088
1089 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1090 sci_close(dev);
1091 if (result == TOS_FAILURE)
1092 pr_err("ACPI call to set Panel Power ON failed\n");
1093 else if (result == TOS_NOT_SUPPORTED)
1094 return -ENODEV;
1095
1096 return result == TOS_SUCCESS ? 0 : -EIO;
1097 }
1098
1099 /* USB Three */
1100 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1101 {
1102 u32 result;
1103
1104 if (!sci_open(dev))
1105 return -EIO;
1106
1107 result = sci_read(dev, SCI_USB_THREE, state);
1108 sci_close(dev);
1109 if (result == TOS_FAILURE)
1110 pr_err("ACPI call to get USB 3 failed\n");
1111 else if (result == TOS_NOT_SUPPORTED)
1112 return -ENODEV;
1113
1114 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1115 }
1116
1117 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1118 {
1119 u32 result;
1120
1121 if (!sci_open(dev))
1122 return -EIO;
1123
1124 result = sci_write(dev, SCI_USB_THREE, state);
1125 sci_close(dev);
1126 if (result == TOS_FAILURE)
1127 pr_err("ACPI call to set USB 3 failed\n");
1128 else if (result == TOS_NOT_SUPPORTED)
1129 return -ENODEV;
1130
1131 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1132 }
1133
1134 /* Hotkey Event type */
1135 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1136 u32 *type)
1137 {
1138 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1139 u32 out[TCI_WORDS];
1140 acpi_status status;
1141
1142 status = tci_raw(dev, in, out);
1143 if (ACPI_FAILURE(status)) {
1144 pr_err("ACPI call to get System type failed\n");
1145 return -EIO;
1146 }
1147
1148 if (out[0] == TOS_NOT_SUPPORTED)
1149 return -ENODEV;
1150
1151 if (out[0] != TOS_SUCCESS)
1152 return -EIO;
1153
1154 *type = out[3];
1155
1156 return 0;
1157 }
1158
1159 /* Wireless status (RFKill, WLAN, BT, WWAN) */
1160 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1161 {
1162 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1163 u32 out[TCI_WORDS];
1164 acpi_status status;
1165
1166 in[3] = HCI_WIRELESS_STATUS;
1167 status = tci_raw(dev, in, out);
1168
1169 if (ACPI_FAILURE(status)) {
1170 pr_err("ACPI call to get Wireless status failed\n");
1171 return -EIO;
1172 }
1173
1174 if (out[0] == TOS_NOT_SUPPORTED)
1175 return -ENODEV;
1176
1177 if (out[0] != TOS_SUCCESS)
1178 return -EIO;
1179
1180 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1181
1182 return 0;
1183 }
1184
1185 /* WWAN */
1186 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1187 {
1188 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1189 u32 out[TCI_WORDS];
1190 acpi_status status;
1191
1192 dev->wwan_supported = 0;
1193
1194 /*
1195 * WWAN support can be queried by setting the in[3] value to
1196 * HCI_WIRELESS_WWAN (0x03).
1197 *
1198 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1199 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1200 *
1201 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1202 * or TOS_NOT_SUPPORTED (0x8000).
1203 */
1204 in[3] = HCI_WIRELESS_WWAN;
1205 status = tci_raw(dev, in, out);
1206 if (ACPI_FAILURE(status)) {
1207 pr_err("ACPI call to get WWAN status failed\n");
1208 return;
1209 }
1210
1211 if (out[0] != TOS_SUCCESS)
1212 return;
1213
1214 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1215 }
1216
1217 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1218 {
1219 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1220 u32 out[TCI_WORDS];
1221 acpi_status status;
1222
1223 in[3] = HCI_WIRELESS_WWAN_STATUS;
1224 status = tci_raw(dev, in, out);
1225 if (ACPI_FAILURE(status)) {
1226 pr_err("ACPI call to set WWAN status failed\n");
1227 return -EIO;
1228 }
1229
1230 if (out[0] == TOS_NOT_SUPPORTED)
1231 return -ENODEV;
1232
1233 if (out[0] != TOS_SUCCESS)
1234 return -EIO;
1235
1236 /*
1237 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1238 * (de)activate the device, but some others need the
1239 * HCI_WIRELESS_WWAN_POWER call as well.
1240 */
1241 in[3] = HCI_WIRELESS_WWAN_POWER;
1242 status = tci_raw(dev, in, out);
1243 if (ACPI_FAILURE(status)) {
1244 pr_err("ACPI call to set WWAN power failed\n");
1245 return -EIO;
1246 }
1247
1248 if (out[0] == TOS_NOT_SUPPORTED)
1249 return -ENODEV;
1250
1251 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1252 }
1253
1254 /* Cooling Method */
1255 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1256 {
1257 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1258 u32 out[TCI_WORDS];
1259 acpi_status status;
1260
1261 dev->cooling_method_supported = 0;
1262 dev->max_cooling_method = 0;
1263
1264 status = tci_raw(dev, in, out);
1265 if (ACPI_FAILURE(status)) {
1266 pr_err("ACPI call to get Cooling Method failed\n");
1267 return;
1268 }
1269
1270 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1271 return;
1272
1273 dev->cooling_method_supported = 1;
1274 dev->max_cooling_method = out[3];
1275 }
1276
1277 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1278 {
1279 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1280
1281 if (result == TOS_FAILURE)
1282 pr_err("ACPI call to get Cooling Method failed\n");
1283
1284 if (result == TOS_NOT_SUPPORTED)
1285 return -ENODEV;
1286
1287 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1288 }
1289
1290 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1291 {
1292 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1293
1294 if (result == TOS_FAILURE)
1295 pr_err("ACPI call to set Cooling Method failed\n");
1296
1297 if (result == TOS_NOT_SUPPORTED)
1298 return -ENODEV;
1299
1300 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1301 }
1302
1303 /* Transflective Backlight */
1304 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1305 {
1306 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1307
1308 if (result == TOS_FAILURE)
1309 pr_err("ACPI call to get Transflective Backlight failed\n");
1310 else if (result == TOS_NOT_SUPPORTED)
1311 return -ENODEV;
1312
1313 return result == TOS_SUCCESS ? 0 : -EIO;
1314 }
1315
1316 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1317 {
1318 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1319
1320 if (result == TOS_FAILURE)
1321 pr_err("ACPI call to set Transflective Backlight failed\n");
1322 else if (result == TOS_NOT_SUPPORTED)
1323 return -ENODEV;
1324
1325 return result == TOS_SUCCESS ? 0 : -EIO;
1326 }
1327
1328 static struct proc_dir_entry *toshiba_proc_dir;
1329
1330 /* LCD Brightness */
1331 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1332 {
1333 int brightness = 0;
1334 u32 result;
1335 u32 value;
1336
1337 if (dev->tr_backlight_supported) {
1338 int ret = get_tr_backlight_status(dev, &value);
1339
1340 if (ret)
1341 return ret;
1342 if (value)
1343 return 0;
1344 brightness++;
1345 }
1346
1347 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1348 if (result == TOS_FAILURE)
1349 pr_err("ACPI call to get LCD Brightness failed\n");
1350 else if (result == TOS_NOT_SUPPORTED)
1351 return -ENODEV;
1352
1353 return result == TOS_SUCCESS ?
1354 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1355 -EIO;
1356 }
1357
1358 static int get_lcd_brightness(struct backlight_device *bd)
1359 {
1360 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1361
1362 return __get_lcd_brightness(dev);
1363 }
1364
1365 static int lcd_proc_show(struct seq_file *m, void *v)
1366 {
1367 struct toshiba_acpi_dev *dev = m->private;
1368 int levels;
1369 int value;
1370
1371 if (!dev->backlight_dev)
1372 return -ENODEV;
1373
1374 levels = dev->backlight_dev->props.max_brightness + 1;
1375 value = get_lcd_brightness(dev->backlight_dev);
1376 if (value < 0) {
1377 pr_err("Error reading LCD brightness\n");
1378 return value;
1379 }
1380
1381 seq_printf(m, "brightness: %d\n", value);
1382 seq_printf(m, "brightness_levels: %d\n", levels);
1383
1384 return 0;
1385 }
1386
1387 static int lcd_proc_open(struct inode *inode, struct file *file)
1388 {
1389 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1390 }
1391
1392 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1393 {
1394 u32 result;
1395
1396 if (dev->tr_backlight_supported) {
1397 int ret = set_tr_backlight_status(dev, !value);
1398
1399 if (ret)
1400 return ret;
1401 if (value)
1402 value--;
1403 }
1404
1405 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1406 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1407 if (result == TOS_FAILURE)
1408 pr_err("ACPI call to set LCD Brightness failed\n");
1409 else if (result == TOS_NOT_SUPPORTED)
1410 return -ENODEV;
1411
1412 return result == TOS_SUCCESS ? 0 : -EIO;
1413 }
1414
1415 static int set_lcd_status(struct backlight_device *bd)
1416 {
1417 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1418
1419 return set_lcd_brightness(dev, bd->props.brightness);
1420 }
1421
1422 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1423 size_t count, loff_t *pos)
1424 {
1425 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1426 char cmd[42];
1427 size_t len;
1428 int levels;
1429 int value;
1430
1431 len = min(count, sizeof(cmd) - 1);
1432 if (copy_from_user(cmd, buf, len))
1433 return -EFAULT;
1434 cmd[len] = '\0';
1435
1436 levels = dev->backlight_dev->props.max_brightness + 1;
1437 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1438 value < 0 && value > levels)
1439 return -EINVAL;
1440
1441 if (set_lcd_brightness(dev, value))
1442 return -EIO;
1443
1444 return count;
1445 }
1446
1447 static const struct file_operations lcd_proc_fops = {
1448 .owner = THIS_MODULE,
1449 .open = lcd_proc_open,
1450 .read = seq_read,
1451 .llseek = seq_lseek,
1452 .release = single_release,
1453 .write = lcd_proc_write,
1454 };
1455
1456 /* Video-Out */
1457 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1458 {
1459 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1460
1461 if (result == TOS_FAILURE)
1462 pr_err("ACPI call to get Video-Out failed\n");
1463 else if (result == TOS_NOT_SUPPORTED)
1464 return -ENODEV;
1465
1466 return result == TOS_SUCCESS ? 0 : -EIO;
1467 }
1468
1469 static int video_proc_show(struct seq_file *m, void *v)
1470 {
1471 struct toshiba_acpi_dev *dev = m->private;
1472 int is_lcd, is_crt, is_tv;
1473 u32 value;
1474
1475 if (get_video_status(dev, &value))
1476 return -EIO;
1477
1478 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1479 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1480 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1481
1482 seq_printf(m, "lcd_out: %d\n", is_lcd);
1483 seq_printf(m, "crt_out: %d\n", is_crt);
1484 seq_printf(m, "tv_out: %d\n", is_tv);
1485
1486 return 0;
1487 }
1488
1489 static int video_proc_open(struct inode *inode, struct file *file)
1490 {
1491 return single_open(file, video_proc_show, PDE_DATA(inode));
1492 }
1493
1494 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1495 size_t count, loff_t *pos)
1496 {
1497 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1498 char *buffer;
1499 char *cmd;
1500 int lcd_out, crt_out, tv_out;
1501 int remain = count;
1502 int value;
1503 int ret;
1504 u32 video_out;
1505
1506 cmd = kmalloc(count + 1, GFP_KERNEL);
1507 if (!cmd)
1508 return -ENOMEM;
1509 if (copy_from_user(cmd, buf, count)) {
1510 kfree(cmd);
1511 return -EFAULT;
1512 }
1513 cmd[count] = '\0';
1514
1515 buffer = cmd;
1516
1517 /*
1518 * Scan expression. Multiple expressions may be delimited with ;
1519 * NOTE: To keep scanning simple, invalid fields are ignored.
1520 */
1521 while (remain) {
1522 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1523 lcd_out = value & 1;
1524 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1525 crt_out = value & 1;
1526 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1527 tv_out = value & 1;
1528 /* Advance to one character past the next ; */
1529 do {
1530 ++buffer;
1531 --remain;
1532 } while (remain && *(buffer - 1) != ';');
1533 }
1534
1535 kfree(cmd);
1536
1537 lcd_out = crt_out = tv_out = -1;
1538 ret = get_video_status(dev, &video_out);
1539 if (!ret) {
1540 unsigned int new_video_out = video_out;
1541
1542 if (lcd_out != -1)
1543 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1544 if (crt_out != -1)
1545 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1546 if (tv_out != -1)
1547 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1548 /*
1549 * To avoid unnecessary video disruption, only write the new
1550 * video setting if something changed.
1551 */
1552 if (new_video_out != video_out)
1553 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1554 }
1555
1556 return ret ? -EIO : count;
1557 }
1558
1559 static const struct file_operations video_proc_fops = {
1560 .owner = THIS_MODULE,
1561 .open = video_proc_open,
1562 .read = seq_read,
1563 .llseek = seq_lseek,
1564 .release = single_release,
1565 .write = video_proc_write,
1566 };
1567
1568 /* Fan status */
1569 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1570 {
1571 u32 result = hci_read(dev, HCI_FAN, status);
1572
1573 if (result == TOS_FAILURE)
1574 pr_err("ACPI call to get Fan status failed\n");
1575 else if (result == TOS_NOT_SUPPORTED)
1576 return -ENODEV;
1577
1578 return result == TOS_SUCCESS ? 0 : -EIO;
1579 }
1580
1581 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1582 {
1583 u32 result = hci_write(dev, HCI_FAN, status);
1584
1585 if (result == TOS_FAILURE)
1586 pr_err("ACPI call to set Fan status failed\n");
1587 else if (result == TOS_NOT_SUPPORTED)
1588 return -ENODEV;
1589
1590 return result == TOS_SUCCESS ? 0 : -EIO;
1591 }
1592
1593 static int fan_proc_show(struct seq_file *m, void *v)
1594 {
1595 struct toshiba_acpi_dev *dev = m->private;
1596 u32 value;
1597
1598 if (get_fan_status(dev, &value))
1599 return -EIO;
1600
1601 seq_printf(m, "running: %d\n", (value > 0));
1602 seq_printf(m, "force_on: %d\n", dev->force_fan);
1603
1604 return 0;
1605 }
1606
1607 static int fan_proc_open(struct inode *inode, struct file *file)
1608 {
1609 return single_open(file, fan_proc_show, PDE_DATA(inode));
1610 }
1611
1612 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1613 size_t count, loff_t *pos)
1614 {
1615 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1616 char cmd[42];
1617 size_t len;
1618 int value;
1619
1620 len = min(count, sizeof(cmd) - 1);
1621 if (copy_from_user(cmd, buf, len))
1622 return -EFAULT;
1623 cmd[len] = '\0';
1624
1625 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1626 value != 0 && value != 1)
1627 return -EINVAL;
1628
1629 if (set_fan_status(dev, value))
1630 return -EIO;
1631
1632 dev->force_fan = value;
1633
1634 return count;
1635 }
1636
1637 static const struct file_operations fan_proc_fops = {
1638 .owner = THIS_MODULE,
1639 .open = fan_proc_open,
1640 .read = seq_read,
1641 .llseek = seq_lseek,
1642 .release = single_release,
1643 .write = fan_proc_write,
1644 };
1645
1646 static int keys_proc_show(struct seq_file *m, void *v)
1647 {
1648 struct toshiba_acpi_dev *dev = m->private;
1649
1650 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1651 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1652
1653 return 0;
1654 }
1655
1656 static int keys_proc_open(struct inode *inode, struct file *file)
1657 {
1658 return single_open(file, keys_proc_show, PDE_DATA(inode));
1659 }
1660
1661 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1662 size_t count, loff_t *pos)
1663 {
1664 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1665 char cmd[42];
1666 size_t len;
1667 int value;
1668
1669 len = min(count, sizeof(cmd) - 1);
1670 if (copy_from_user(cmd, buf, len))
1671 return -EFAULT;
1672 cmd[len] = '\0';
1673
1674 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1675 dev->key_event_valid = 0;
1676 else
1677 return -EINVAL;
1678
1679 return count;
1680 }
1681
1682 static const struct file_operations keys_proc_fops = {
1683 .owner = THIS_MODULE,
1684 .open = keys_proc_open,
1685 .read = seq_read,
1686 .llseek = seq_lseek,
1687 .release = single_release,
1688 .write = keys_proc_write,
1689 };
1690
1691 static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1692 {
1693 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1694 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1695 return 0;
1696 }
1697
1698 static int version_proc_open(struct inode *inode, struct file *file)
1699 {
1700 return single_open(file, version_proc_show, PDE_DATA(inode));
1701 }
1702
1703 static const struct file_operations version_proc_fops = {
1704 .owner = THIS_MODULE,
1705 .open = version_proc_open,
1706 .read = seq_read,
1707 .llseek = seq_lseek,
1708 .release = single_release,
1709 };
1710
1711 /*
1712 * Proc and module init
1713 */
1714
1715 #define PROC_TOSHIBA "toshiba"
1716
1717 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1718 {
1719 if (dev->backlight_dev)
1720 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1721 &lcd_proc_fops, dev);
1722 if (dev->video_supported)
1723 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1724 &video_proc_fops, dev);
1725 if (dev->fan_supported)
1726 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1727 &fan_proc_fops, dev);
1728 if (dev->hotkey_dev)
1729 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1730 &keys_proc_fops, dev);
1731 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1732 &version_proc_fops, dev);
1733 }
1734
1735 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1736 {
1737 if (dev->backlight_dev)
1738 remove_proc_entry("lcd", toshiba_proc_dir);
1739 if (dev->video_supported)
1740 remove_proc_entry("video", toshiba_proc_dir);
1741 if (dev->fan_supported)
1742 remove_proc_entry("fan", toshiba_proc_dir);
1743 if (dev->hotkey_dev)
1744 remove_proc_entry("keys", toshiba_proc_dir);
1745 remove_proc_entry("version", toshiba_proc_dir);
1746 }
1747
1748 static const struct backlight_ops toshiba_backlight_data = {
1749 .options = BL_CORE_SUSPENDRESUME,
1750 .get_brightness = get_lcd_brightness,
1751 .update_status = set_lcd_status,
1752 };
1753
1754 /* Keyboard backlight work */
1755 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1756
1757 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1758
1759 /*
1760 * Sysfs files
1761 */
1762 static ssize_t version_show(struct device *dev,
1763 struct device_attribute *attr, char *buf)
1764 {
1765 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1766 }
1767 static DEVICE_ATTR_RO(version);
1768
1769 static ssize_t fan_store(struct device *dev,
1770 struct device_attribute *attr,
1771 const char *buf, size_t count)
1772 {
1773 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1774 int state;
1775 int ret;
1776
1777 ret = kstrtoint(buf, 0, &state);
1778 if (ret)
1779 return ret;
1780
1781 if (state != 0 && state != 1)
1782 return -EINVAL;
1783
1784 ret = set_fan_status(toshiba, state);
1785 if (ret)
1786 return ret;
1787
1788 return count;
1789 }
1790
1791 static ssize_t fan_show(struct device *dev,
1792 struct device_attribute *attr, char *buf)
1793 {
1794 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1795 u32 value;
1796 int ret;
1797
1798 ret = get_fan_status(toshiba, &value);
1799 if (ret)
1800 return ret;
1801
1802 return sprintf(buf, "%d\n", value);
1803 }
1804 static DEVICE_ATTR_RW(fan);
1805
1806 static ssize_t kbd_backlight_mode_store(struct device *dev,
1807 struct device_attribute *attr,
1808 const char *buf, size_t count)
1809 {
1810 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1811 int mode;
1812 int ret;
1813
1814
1815 ret = kstrtoint(buf, 0, &mode);
1816 if (ret)
1817 return ret;
1818
1819 /* Check for supported modes depending on keyboard backlight type */
1820 if (toshiba->kbd_type == 1) {
1821 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1822 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1823 return -EINVAL;
1824 } else if (toshiba->kbd_type == 2) {
1825 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1826 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1827 mode != SCI_KBD_MODE_OFF)
1828 return -EINVAL;
1829 }
1830
1831 /*
1832 * Set the Keyboard Backlight Mode where:
1833 * Auto - KBD backlight turns off automatically in given time
1834 * FN-Z - KBD backlight "toggles" when hotkey pressed
1835 * ON - KBD backlight is always on
1836 * OFF - KBD backlight is always off
1837 */
1838
1839 /* Only make a change if the actual mode has changed */
1840 if (toshiba->kbd_mode != mode) {
1841 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1842 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1843
1844 /* OR the "base time" to the actual method format */
1845 if (toshiba->kbd_type == 1) {
1846 /* Type 1 requires the current mode */
1847 time |= toshiba->kbd_mode;
1848 } else if (toshiba->kbd_type == 2) {
1849 /* Type 2 requires the desired mode */
1850 time |= mode;
1851 }
1852
1853 ret = toshiba_kbd_illum_status_set(toshiba, time);
1854 if (ret)
1855 return ret;
1856
1857 toshiba->kbd_mode = mode;
1858
1859 /*
1860 * Some laptop models with the second generation backlit
1861 * keyboard (type 2) do not generate the keyboard backlight
1862 * changed event (0x92), and thus, the driver will never update
1863 * the sysfs entries.
1864 *
1865 * The event is generated right when changing the keyboard
1866 * backlight mode and the *notify function will set the
1867 * kbd_event_generated to true.
1868 *
1869 * In case the event is not generated, schedule the keyboard
1870 * backlight work to update the sysfs entries and emulate the
1871 * event via genetlink.
1872 */
1873 if (toshiba->kbd_type == 2 &&
1874 !toshiba_acpi->kbd_event_generated)
1875 schedule_work(&kbd_bl_work);
1876 }
1877
1878 return count;
1879 }
1880
1881 static ssize_t kbd_backlight_mode_show(struct device *dev,
1882 struct device_attribute *attr,
1883 char *buf)
1884 {
1885 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1886 u32 time;
1887
1888 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1889 return -EIO;
1890
1891 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1892 }
1893 static DEVICE_ATTR_RW(kbd_backlight_mode);
1894
1895 static ssize_t kbd_type_show(struct device *dev,
1896 struct device_attribute *attr, char *buf)
1897 {
1898 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1899
1900 return sprintf(buf, "%d\n", toshiba->kbd_type);
1901 }
1902 static DEVICE_ATTR_RO(kbd_type);
1903
1904 static ssize_t available_kbd_modes_show(struct device *dev,
1905 struct device_attribute *attr,
1906 char *buf)
1907 {
1908 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1909
1910 if (toshiba->kbd_type == 1)
1911 return sprintf(buf, "0x%x 0x%x\n",
1912 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1913
1914 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1915 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1916 }
1917 static DEVICE_ATTR_RO(available_kbd_modes);
1918
1919 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1920 struct device_attribute *attr,
1921 const char *buf, size_t count)
1922 {
1923 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1924 int time;
1925 int ret;
1926
1927 ret = kstrtoint(buf, 0, &time);
1928 if (ret)
1929 return ret;
1930
1931 /* Check for supported values depending on kbd_type */
1932 if (toshiba->kbd_type == 1) {
1933 if (time < 0 || time > 60)
1934 return -EINVAL;
1935 } else if (toshiba->kbd_type == 2) {
1936 if (time < 1 || time > 60)
1937 return -EINVAL;
1938 }
1939
1940 /* Set the Keyboard Backlight Timeout */
1941
1942 /* Only make a change if the actual timeout has changed */
1943 if (toshiba->kbd_time != time) {
1944 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1945 time = time << HCI_MISC_SHIFT;
1946 /* OR the "base time" to the actual method format */
1947 if (toshiba->kbd_type == 1)
1948 time |= SCI_KBD_MODE_FNZ;
1949 else if (toshiba->kbd_type == 2)
1950 time |= SCI_KBD_MODE_AUTO;
1951
1952 ret = toshiba_kbd_illum_status_set(toshiba, time);
1953 if (ret)
1954 return ret;
1955
1956 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1957 }
1958
1959 return count;
1960 }
1961
1962 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1963 struct device_attribute *attr,
1964 char *buf)
1965 {
1966 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1967 u32 time;
1968
1969 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1970 return -EIO;
1971
1972 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1973 }
1974 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1975
1976 static ssize_t touchpad_store(struct device *dev,
1977 struct device_attribute *attr,
1978 const char *buf, size_t count)
1979 {
1980 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1981 int state;
1982 int ret;
1983
1984 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1985 ret = kstrtoint(buf, 0, &state);
1986 if (ret)
1987 return ret;
1988 if (state != 0 && state != 1)
1989 return -EINVAL;
1990
1991 ret = toshiba_touchpad_set(toshiba, state);
1992 if (ret)
1993 return ret;
1994
1995 return count;
1996 }
1997
1998 static ssize_t touchpad_show(struct device *dev,
1999 struct device_attribute *attr, char *buf)
2000 {
2001 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2002 u32 state;
2003 int ret;
2004
2005 ret = toshiba_touchpad_get(toshiba, &state);
2006 if (ret < 0)
2007 return ret;
2008
2009 return sprintf(buf, "%i\n", state);
2010 }
2011 static DEVICE_ATTR_RW(touchpad);
2012
2013 static ssize_t usb_sleep_charge_show(struct device *dev,
2014 struct device_attribute *attr, char *buf)
2015 {
2016 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2017 u32 mode;
2018 int ret;
2019
2020 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2021 if (ret < 0)
2022 return ret;
2023
2024 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2025 }
2026
2027 static ssize_t usb_sleep_charge_store(struct device *dev,
2028 struct device_attribute *attr,
2029 const char *buf, size_t count)
2030 {
2031 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2032 int state;
2033 u32 mode;
2034 int ret;
2035
2036 ret = kstrtoint(buf, 0, &state);
2037 if (ret)
2038 return ret;
2039 /*
2040 * Check for supported values, where:
2041 * 0 - Disabled
2042 * 1 - Alternate (Non USB conformant devices that require more power)
2043 * 2 - Auto (USB conformant devices)
2044 * 3 - Typical
2045 */
2046 if (state != 0 && state != 1 && state != 2 && state != 3)
2047 return -EINVAL;
2048
2049 /* Set the USB charging mode to internal value */
2050 mode = toshiba->usbsc_mode_base;
2051 if (state == 0)
2052 mode |= SCI_USB_CHARGE_DISABLED;
2053 else if (state == 1)
2054 mode |= SCI_USB_CHARGE_ALTERNATE;
2055 else if (state == 2)
2056 mode |= SCI_USB_CHARGE_AUTO;
2057 else if (state == 3)
2058 mode |= SCI_USB_CHARGE_TYPICAL;
2059
2060 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2061 if (ret)
2062 return ret;
2063
2064 return count;
2065 }
2066 static DEVICE_ATTR_RW(usb_sleep_charge);
2067
2068 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2069 struct device_attribute *attr,
2070 char *buf)
2071 {
2072 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2073 int bat_lvl, status;
2074 u32 state;
2075 int ret;
2076 int tmp;
2077
2078 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2079 if (ret < 0)
2080 return ret;
2081
2082 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2083 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2084 status = (tmp == 0x4) ? 1 : 0;
2085 /* Determine the battery level set */
2086 bat_lvl = state >> HCI_MISC_SHIFT;
2087
2088 return sprintf(buf, "%d %d\n", status, bat_lvl);
2089 }
2090
2091 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2092 struct device_attribute *attr,
2093 const char *buf, size_t count)
2094 {
2095 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2096 u32 status;
2097 int value;
2098 int ret;
2099 int tmp;
2100
2101 ret = kstrtoint(buf, 0, &value);
2102 if (ret)
2103 return ret;
2104
2105 /*
2106 * Set the status of the function:
2107 * 0 - Disabled
2108 * 1-100 - Enabled
2109 */
2110 if (value < 0 || value > 100)
2111 return -EINVAL;
2112
2113 if (value == 0) {
2114 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2115 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2116 } else {
2117 tmp = value << HCI_MISC_SHIFT;
2118 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2119 }
2120 ret = toshiba_sleep_functions_status_set(toshiba, status);
2121 if (ret < 0)
2122 return ret;
2123
2124 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2125
2126 return count;
2127 }
2128 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2129
2130 static ssize_t usb_rapid_charge_show(struct device *dev,
2131 struct device_attribute *attr, char *buf)
2132 {
2133 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2134 u32 state;
2135 int ret;
2136
2137 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2138 if (ret < 0)
2139 return ret;
2140
2141 return sprintf(buf, "%d\n", state);
2142 }
2143
2144 static ssize_t usb_rapid_charge_store(struct device *dev,
2145 struct device_attribute *attr,
2146 const char *buf, size_t count)
2147 {
2148 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2149 int state;
2150 int ret;
2151
2152 ret = kstrtoint(buf, 0, &state);
2153 if (ret)
2154 return ret;
2155 if (state != 0 && state != 1)
2156 return -EINVAL;
2157
2158 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2159 if (ret)
2160 return ret;
2161
2162 return count;
2163 }
2164 static DEVICE_ATTR_RW(usb_rapid_charge);
2165
2166 static ssize_t usb_sleep_music_show(struct device *dev,
2167 struct device_attribute *attr, char *buf)
2168 {
2169 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2170 u32 state;
2171 int ret;
2172
2173 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2174 if (ret < 0)
2175 return ret;
2176
2177 return sprintf(buf, "%d\n", state);
2178 }
2179
2180 static ssize_t usb_sleep_music_store(struct device *dev,
2181 struct device_attribute *attr,
2182 const char *buf, size_t count)
2183 {
2184 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2185 int state;
2186 int ret;
2187
2188 ret = kstrtoint(buf, 0, &state);
2189 if (ret)
2190 return ret;
2191 if (state != 0 && state != 1)
2192 return -EINVAL;
2193
2194 ret = toshiba_usb_sleep_music_set(toshiba, state);
2195 if (ret)
2196 return ret;
2197
2198 return count;
2199 }
2200 static DEVICE_ATTR_RW(usb_sleep_music);
2201
2202 static ssize_t kbd_function_keys_show(struct device *dev,
2203 struct device_attribute *attr, char *buf)
2204 {
2205 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2206 int mode;
2207 int ret;
2208
2209 ret = toshiba_function_keys_get(toshiba, &mode);
2210 if (ret < 0)
2211 return ret;
2212
2213 return sprintf(buf, "%d\n", mode);
2214 }
2215
2216 static ssize_t kbd_function_keys_store(struct device *dev,
2217 struct device_attribute *attr,
2218 const char *buf, size_t count)
2219 {
2220 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2221 int mode;
2222 int ret;
2223
2224 ret = kstrtoint(buf, 0, &mode);
2225 if (ret)
2226 return ret;
2227 /*
2228 * Check for the function keys mode where:
2229 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2230 * 1 - Special functions (Opposite of the above setting)
2231 */
2232 if (mode != 0 && mode != 1)
2233 return -EINVAL;
2234
2235 ret = toshiba_function_keys_set(toshiba, mode);
2236 if (ret)
2237 return ret;
2238
2239 pr_info("Reboot for changes to KBD Function Keys to take effect");
2240
2241 return count;
2242 }
2243 static DEVICE_ATTR_RW(kbd_function_keys);
2244
2245 static ssize_t panel_power_on_show(struct device *dev,
2246 struct device_attribute *attr, char *buf)
2247 {
2248 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2249 u32 state;
2250 int ret;
2251
2252 ret = toshiba_panel_power_on_get(toshiba, &state);
2253 if (ret < 0)
2254 return ret;
2255
2256 return sprintf(buf, "%d\n", state);
2257 }
2258
2259 static ssize_t panel_power_on_store(struct device *dev,
2260 struct device_attribute *attr,
2261 const char *buf, size_t count)
2262 {
2263 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2264 int state;
2265 int ret;
2266
2267 ret = kstrtoint(buf, 0, &state);
2268 if (ret)
2269 return ret;
2270 if (state != 0 && state != 1)
2271 return -EINVAL;
2272
2273 ret = toshiba_panel_power_on_set(toshiba, state);
2274 if (ret)
2275 return ret;
2276
2277 pr_info("Reboot for changes to Panel Power ON to take effect");
2278
2279 return count;
2280 }
2281 static DEVICE_ATTR_RW(panel_power_on);
2282
2283 static ssize_t usb_three_show(struct device *dev,
2284 struct device_attribute *attr, char *buf)
2285 {
2286 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2287 u32 state;
2288 int ret;
2289
2290 ret = toshiba_usb_three_get(toshiba, &state);
2291 if (ret < 0)
2292 return ret;
2293
2294 return sprintf(buf, "%d\n", state);
2295 }
2296
2297 static ssize_t usb_three_store(struct device *dev,
2298 struct device_attribute *attr,
2299 const char *buf, size_t count)
2300 {
2301 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2302 int state;
2303 int ret;
2304
2305 ret = kstrtoint(buf, 0, &state);
2306 if (ret)
2307 return ret;
2308 /*
2309 * Check for USB 3 mode where:
2310 * 0 - Disabled (Acts like a USB 2 port, saving power)
2311 * 1 - Enabled
2312 */
2313 if (state != 0 && state != 1)
2314 return -EINVAL;
2315
2316 ret = toshiba_usb_three_set(toshiba, state);
2317 if (ret)
2318 return ret;
2319
2320 pr_info("Reboot for changes to USB 3 to take effect");
2321
2322 return count;
2323 }
2324 static DEVICE_ATTR_RW(usb_three);
2325
2326 static ssize_t cooling_method_show(struct device *dev,
2327 struct device_attribute *attr, char *buf)
2328 {
2329 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2330 int state;
2331 int ret;
2332
2333 ret = toshiba_cooling_method_get(toshiba, &state);
2334 if (ret < 0)
2335 return ret;
2336
2337 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2338 }
2339
2340 static ssize_t cooling_method_store(struct device *dev,
2341 struct device_attribute *attr,
2342 const char *buf, size_t count)
2343 {
2344 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2345 int state;
2346 int ret;
2347
2348 ret = kstrtoint(buf, 0, &state);
2349 if (ret)
2350 return ret;
2351
2352 /*
2353 * Check for supported values
2354 * Depending on the laptop model, some only support these two:
2355 * 0 - Maximum Performance
2356 * 1 - Battery Optimized
2357 *
2358 * While some others support all three methods:
2359 * 0 - Maximum Performance
2360 * 1 - Performance
2361 * 2 - Battery Optimized
2362 */
2363 if (state < 0 || state > toshiba->max_cooling_method)
2364 return -EINVAL;
2365
2366 ret = toshiba_cooling_method_set(toshiba, state);
2367 if (ret)
2368 return ret;
2369
2370 return count;
2371 }
2372 static DEVICE_ATTR_RW(cooling_method);
2373
2374 static struct attribute *toshiba_attributes[] = {
2375 &dev_attr_version.attr,
2376 &dev_attr_fan.attr,
2377 &dev_attr_kbd_backlight_mode.attr,
2378 &dev_attr_kbd_type.attr,
2379 &dev_attr_available_kbd_modes.attr,
2380 &dev_attr_kbd_backlight_timeout.attr,
2381 &dev_attr_touchpad.attr,
2382 &dev_attr_usb_sleep_charge.attr,
2383 &dev_attr_sleep_functions_on_battery.attr,
2384 &dev_attr_usb_rapid_charge.attr,
2385 &dev_attr_usb_sleep_music.attr,
2386 &dev_attr_kbd_function_keys.attr,
2387 &dev_attr_panel_power_on.attr,
2388 &dev_attr_usb_three.attr,
2389 &dev_attr_cooling_method.attr,
2390 NULL,
2391 };
2392
2393 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2394 struct attribute *attr, int idx)
2395 {
2396 struct device *dev = container_of(kobj, struct device, kobj);
2397 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2398 bool exists = true;
2399
2400 if (attr == &dev_attr_fan.attr)
2401 exists = (drv->fan_supported) ? true : false;
2402 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2403 exists = (drv->kbd_illum_supported) ? true : false;
2404 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2405 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2406 else if (attr == &dev_attr_touchpad.attr)
2407 exists = (drv->touchpad_supported) ? true : false;
2408 else if (attr == &dev_attr_usb_sleep_charge.attr)
2409 exists = (drv->usb_sleep_charge_supported) ? true : false;
2410 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2411 exists = (drv->usb_sleep_charge_supported) ? true : false;
2412 else if (attr == &dev_attr_usb_rapid_charge.attr)
2413 exists = (drv->usb_rapid_charge_supported) ? true : false;
2414 else if (attr == &dev_attr_usb_sleep_music.attr)
2415 exists = (drv->usb_sleep_music_supported) ? true : false;
2416 else if (attr == &dev_attr_kbd_function_keys.attr)
2417 exists = (drv->kbd_function_keys_supported) ? true : false;
2418 else if (attr == &dev_attr_panel_power_on.attr)
2419 exists = (drv->panel_power_on_supported) ? true : false;
2420 else if (attr == &dev_attr_usb_three.attr)
2421 exists = (drv->usb_three_supported) ? true : false;
2422 else if (attr == &dev_attr_cooling_method.attr)
2423 exists = (drv->cooling_method_supported) ? true : false;
2424
2425 return exists ? attr->mode : 0;
2426 }
2427
2428 static struct attribute_group toshiba_attr_group = {
2429 .is_visible = toshiba_sysfs_is_visible,
2430 .attrs = toshiba_attributes,
2431 };
2432
2433 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2434 {
2435 struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2436
2437 /* Update the sysfs entries */
2438 if (sysfs_update_group(&acpi_dev->dev.kobj,
2439 &toshiba_attr_group))
2440 pr_err("Unable to update sysfs entries\n");
2441
2442 /* Emulate the keyboard backlight event */
2443 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2444 dev_name(&acpi_dev->dev),
2445 0x92, 0);
2446 }
2447
2448 /*
2449 * IIO device
2450 */
2451
2452 enum toshiba_iio_accel_chan {
2453 AXIS_X,
2454 AXIS_Y,
2455 AXIS_Z
2456 };
2457
2458 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2459 {
2460 u32 xyval, zval;
2461 int ret;
2462
2463 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2464 if (ret < 0)
2465 return ret;
2466
2467 switch (chan) {
2468 case AXIS_X:
2469 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2470 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2471 case AXIS_Y:
2472 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2473 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2474 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2475 case AXIS_Z:
2476 return zval & HCI_ACCEL_DIRECTION_MASK ?
2477 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2478 }
2479
2480 return ret;
2481 }
2482
2483 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2484 struct iio_chan_spec const *chan,
2485 int *val, int *val2, long mask)
2486 {
2487 int ret;
2488
2489 switch (mask) {
2490 case IIO_CHAN_INFO_RAW:
2491 ret = toshiba_iio_accel_get_axis(chan->channel);
2492 if (ret == -EIO || ret == -ENODEV)
2493 return ret;
2494
2495 *val = ret;
2496
2497 return IIO_VAL_INT;
2498 }
2499
2500 return -EINVAL;
2501 }
2502
2503 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2504 .type = IIO_ACCEL, \
2505 .modified = 1, \
2506 .channel = chan, \
2507 .channel2 = IIO_MOD_##axis, \
2508 .output = 1, \
2509 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2510 }
2511
2512 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2513 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2514 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2515 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2516 };
2517
2518 static const struct iio_info toshiba_iio_accel_info = {
2519 .driver_module = THIS_MODULE,
2520 .read_raw = &toshiba_iio_accel_read_raw,
2521 };
2522
2523 /*
2524 * Misc device
2525 */
2526 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2527 {
2528 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2529 regs->edx, regs->esi, regs->edi };
2530 u32 out[TCI_WORDS];
2531 acpi_status status;
2532
2533 status = tci_raw(toshiba_acpi, in, out);
2534 if (ACPI_FAILURE(status)) {
2535 pr_err("ACPI call to query SMM registers failed\n");
2536 return -EIO;
2537 }
2538
2539 /* Fillout the SMM struct with the TCI call results */
2540 regs->eax = out[0];
2541 regs->ebx = out[1];
2542 regs->ecx = out[2];
2543 regs->edx = out[3];
2544 regs->esi = out[4];
2545 regs->edi = out[5];
2546
2547 return 0;
2548 }
2549
2550 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2551 unsigned long arg)
2552 {
2553 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2554 SMMRegisters regs;
2555 int ret;
2556
2557 if (!argp)
2558 return -EINVAL;
2559
2560 switch (cmd) {
2561 case TOSH_SMM:
2562 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2563 return -EFAULT;
2564 ret = toshiba_acpi_smm_bridge(&regs);
2565 if (ret)
2566 return ret;
2567 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2568 return -EFAULT;
2569 break;
2570 case TOSHIBA_ACPI_SCI:
2571 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2572 return -EFAULT;
2573 /* Ensure we are being called with a SCI_{GET, SET} register */
2574 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2575 return -EINVAL;
2576 if (!sci_open(toshiba_acpi))
2577 return -EIO;
2578 ret = toshiba_acpi_smm_bridge(&regs);
2579 sci_close(toshiba_acpi);
2580 if (ret)
2581 return ret;
2582 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2583 return -EFAULT;
2584 break;
2585 default:
2586 return -EINVAL;
2587 }
2588
2589 return 0;
2590 }
2591
2592 static const struct file_operations toshiba_acpi_fops = {
2593 .owner = THIS_MODULE,
2594 .unlocked_ioctl = toshiba_acpi_ioctl,
2595 .llseek = noop_llseek,
2596 };
2597
2598 /*
2599 * WWAN RFKill handlers
2600 */
2601 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2602 {
2603 struct toshiba_acpi_dev *dev = data;
2604 int ret;
2605
2606 ret = toshiba_wireless_status(dev);
2607 if (ret)
2608 return ret;
2609
2610 if (!dev->killswitch)
2611 return 0;
2612
2613 return toshiba_wwan_set(dev, !blocked);
2614 }
2615
2616 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2617 {
2618 struct toshiba_acpi_dev *dev = data;
2619
2620 if (toshiba_wireless_status(dev))
2621 return;
2622
2623 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2624 }
2625
2626 static const struct rfkill_ops wwan_rfk_ops = {
2627 .set_block = toshiba_acpi_wwan_set_block,
2628 .poll = toshiba_acpi_wwan_poll,
2629 };
2630
2631 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2632 {
2633 int ret = toshiba_wireless_status(dev);
2634
2635 if (ret)
2636 return ret;
2637
2638 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2639 &dev->acpi_dev->dev,
2640 RFKILL_TYPE_WWAN,
2641 &wwan_rfk_ops,
2642 dev);
2643 if (!dev->wwan_rfk) {
2644 pr_err("Unable to allocate WWAN rfkill device\n");
2645 return -ENOMEM;
2646 }
2647
2648 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2649
2650 ret = rfkill_register(dev->wwan_rfk);
2651 if (ret) {
2652 pr_err("Unable to register WWAN rfkill device\n");
2653 rfkill_destroy(dev->wwan_rfk);
2654 }
2655
2656 return ret;
2657 }
2658
2659 /*
2660 * Hotkeys
2661 */
2662 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2663 {
2664 acpi_status status;
2665 u32 result;
2666
2667 status = acpi_evaluate_object(dev->acpi_dev->handle,
2668 "ENAB", NULL, NULL);
2669 if (ACPI_FAILURE(status))
2670 return -ENODEV;
2671
2672 /*
2673 * Enable the "Special Functions" mode only if they are
2674 * supported and if they are activated.
2675 */
2676 if (dev->kbd_function_keys_supported && dev->special_functions)
2677 result = hci_write(dev, HCI_HOTKEY_EVENT,
2678 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2679 else
2680 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2681
2682 if (result == TOS_FAILURE)
2683 return -EIO;
2684 else if (result == TOS_NOT_SUPPORTED)
2685 return -ENODEV;
2686
2687 return 0;
2688 }
2689
2690 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2691 struct serio *port)
2692 {
2693 if (str & I8042_STR_AUXDATA)
2694 return false;
2695
2696 if (unlikely(data == 0xe0))
2697 return false;
2698
2699 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2700 schedule_work(&toshiba_acpi->hotkey_work);
2701 return true;
2702 }
2703
2704 return false;
2705 }
2706
2707 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2708 {
2709 acpi_handle ec_handle = ec_get_handle();
2710 acpi_status status;
2711
2712 if (!ec_handle)
2713 return;
2714
2715 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2716 if (ACPI_FAILURE(status))
2717 pr_err("ACPI NTFY method execution failed\n");
2718 }
2719
2720 /*
2721 * Returns hotkey scancode, or < 0 on failure.
2722 */
2723 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2724 {
2725 unsigned long long value;
2726 acpi_status status;
2727
2728 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2729 NULL, &value);
2730 if (ACPI_FAILURE(status)) {
2731 pr_err("ACPI INFO method execution failed\n");
2732 return -EIO;
2733 }
2734
2735 return value;
2736 }
2737
2738 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2739 int scancode)
2740 {
2741 if (scancode == 0x100)
2742 return;
2743
2744 /* Act on key press; ignore key release */
2745 if (scancode & 0x80)
2746 return;
2747
2748 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2749 pr_info("Unknown key %x\n", scancode);
2750 }
2751
2752 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2753 {
2754 if (dev->info_supported) {
2755 int scancode = toshiba_acpi_query_hotkey(dev);
2756
2757 if (scancode < 0) {
2758 pr_err("Failed to query hotkey event\n");
2759 } else if (scancode != 0) {
2760 toshiba_acpi_report_hotkey(dev, scancode);
2761 dev->key_event_valid = 1;
2762 dev->last_key_event = scancode;
2763 }
2764 } else if (dev->system_event_supported) {
2765 u32 result;
2766 u32 value;
2767 int retries = 3;
2768
2769 do {
2770 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2771 switch (result) {
2772 case TOS_SUCCESS:
2773 toshiba_acpi_report_hotkey(dev, (int)value);
2774 dev->key_event_valid = 1;
2775 dev->last_key_event = value;
2776 break;
2777 case TOS_NOT_SUPPORTED:
2778 /*
2779 * This is a workaround for an unresolved
2780 * issue on some machines where system events
2781 * sporadically become disabled.
2782 */
2783 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2784 if (result == TOS_SUCCESS)
2785 pr_notice("Re-enabled hotkeys\n");
2786 /* Fall through */
2787 default:
2788 retries--;
2789 break;
2790 }
2791 } while (retries && result != TOS_FIFO_EMPTY);
2792 }
2793 }
2794
2795 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2796 {
2797 const struct key_entry *keymap = toshiba_acpi_keymap;
2798 acpi_handle ec_handle;
2799 int error;
2800
2801 if (disable_hotkeys) {
2802 pr_info("Hotkeys disabled by module parameter\n");
2803 return 0;
2804 }
2805
2806 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2807 pr_info("WMI event detected, hotkeys will not be monitored\n");
2808 return 0;
2809 }
2810
2811 error = toshiba_acpi_enable_hotkeys(dev);
2812 if (error)
2813 return error;
2814
2815 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2816 pr_notice("Unable to query Hotkey Event Type\n");
2817
2818 dev->hotkey_dev = input_allocate_device();
2819 if (!dev->hotkey_dev)
2820 return -ENOMEM;
2821
2822 dev->hotkey_dev->name = "Toshiba input device";
2823 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2824 dev->hotkey_dev->id.bustype = BUS_HOST;
2825
2826 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2827 !dev->kbd_function_keys_supported)
2828 keymap = toshiba_acpi_keymap;
2829 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2830 dev->kbd_function_keys_supported)
2831 keymap = toshiba_acpi_alt_keymap;
2832 else
2833 pr_info("Unknown event type received %x\n",
2834 dev->hotkey_event_type);
2835 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2836 if (error)
2837 goto err_free_dev;
2838
2839 /*
2840 * For some machines the SCI responsible for providing hotkey
2841 * notification doesn't fire. We can trigger the notification
2842 * whenever the Fn key is pressed using the NTFY method, if
2843 * supported, so if it's present set up an i8042 key filter
2844 * for this purpose.
2845 */
2846 ec_handle = ec_get_handle();
2847 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2848 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2849
2850 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2851 if (error) {
2852 pr_err("Error installing key filter\n");
2853 goto err_free_keymap;
2854 }
2855
2856 dev->ntfy_supported = 1;
2857 }
2858
2859 /*
2860 * Determine hotkey query interface. Prefer using the INFO
2861 * method when it is available.
2862 */
2863 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2864 dev->info_supported = 1;
2865 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2866 dev->system_event_supported = 1;
2867
2868 if (!dev->info_supported && !dev->system_event_supported) {
2869 pr_warn("No hotkey query interface found\n");
2870 goto err_remove_filter;
2871 }
2872
2873 error = input_register_device(dev->hotkey_dev);
2874 if (error) {
2875 pr_info("Unable to register input device\n");
2876 goto err_remove_filter;
2877 }
2878
2879 return 0;
2880
2881 err_remove_filter:
2882 if (dev->ntfy_supported)
2883 i8042_remove_filter(toshiba_acpi_i8042_filter);
2884 err_free_keymap:
2885 sparse_keymap_free(dev->hotkey_dev);
2886 err_free_dev:
2887 input_free_device(dev->hotkey_dev);
2888 dev->hotkey_dev = NULL;
2889 return error;
2890 }
2891
2892 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2893 {
2894 struct backlight_properties props;
2895 int brightness;
2896 int ret;
2897
2898 /*
2899 * Some machines don't support the backlight methods at all, and
2900 * others support it read-only. Either of these is pretty useless,
2901 * so only register the backlight device if the backlight method
2902 * supports both reads and writes.
2903 */
2904 brightness = __get_lcd_brightness(dev);
2905 if (brightness < 0)
2906 return 0;
2907 /*
2908 * If transflective backlight is supported and the brightness is zero
2909 * (lowest brightness level), the set_lcd_brightness function will
2910 * activate the transflective backlight, making the LCD appear to be
2911 * turned off, simply increment the brightness level to avoid that.
2912 */
2913 if (dev->tr_backlight_supported && brightness == 0)
2914 brightness++;
2915 ret = set_lcd_brightness(dev, brightness);
2916 if (ret) {
2917 pr_debug("Backlight method is read-only, disabling backlight support\n");
2918 return 0;
2919 }
2920
2921 /*
2922 * Tell acpi-video-detect code to prefer vendor backlight on all
2923 * systems with transflective backlight and on dmi matched systems.
2924 */
2925 if (dev->tr_backlight_supported ||
2926 dmi_check_system(toshiba_vendor_backlight_dmi))
2927 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2928
2929 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2930 return 0;
2931
2932 memset(&props, 0, sizeof(props));
2933 props.type = BACKLIGHT_PLATFORM;
2934 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2935
2936 /* Adding an extra level and having 0 change to transflective mode */
2937 if (dev->tr_backlight_supported)
2938 props.max_brightness++;
2939
2940 dev->backlight_dev = backlight_device_register("toshiba",
2941 &dev->acpi_dev->dev,
2942 dev,
2943 &toshiba_backlight_data,
2944 &props);
2945 if (IS_ERR(dev->backlight_dev)) {
2946 ret = PTR_ERR(dev->backlight_dev);
2947 pr_err("Could not register toshiba backlight device\n");
2948 dev->backlight_dev = NULL;
2949 return ret;
2950 }
2951
2952 dev->backlight_dev->props.brightness = brightness;
2953 return 0;
2954 }
2955
2956 static void print_supported_features(struct toshiba_acpi_dev *dev)
2957 {
2958 pr_info("Supported laptop features:");
2959
2960 if (dev->hotkey_dev)
2961 pr_cont(" hotkeys");
2962 if (dev->backlight_dev)
2963 pr_cont(" backlight");
2964 if (dev->video_supported)
2965 pr_cont(" video-out");
2966 if (dev->fan_supported)
2967 pr_cont(" fan");
2968 if (dev->tr_backlight_supported)
2969 pr_cont(" transflective-backlight");
2970 if (dev->illumination_supported)
2971 pr_cont(" illumination");
2972 if (dev->kbd_illum_supported)
2973 pr_cont(" keyboard-backlight");
2974 if (dev->touchpad_supported)
2975 pr_cont(" touchpad");
2976 if (dev->eco_supported)
2977 pr_cont(" eco-led");
2978 if (dev->accelerometer_supported)
2979 pr_cont(" accelerometer-axes");
2980 if (dev->usb_sleep_charge_supported)
2981 pr_cont(" usb-sleep-charge");
2982 if (dev->usb_rapid_charge_supported)
2983 pr_cont(" usb-rapid-charge");
2984 if (dev->usb_sleep_music_supported)
2985 pr_cont(" usb-sleep-music");
2986 if (dev->kbd_function_keys_supported)
2987 pr_cont(" special-function-keys");
2988 if (dev->panel_power_on_supported)
2989 pr_cont(" panel-power-on");
2990 if (dev->usb_three_supported)
2991 pr_cont(" usb3");
2992 if (dev->wwan_supported)
2993 pr_cont(" wwan");
2994 if (dev->cooling_method_supported)
2995 pr_cont(" cooling-method");
2996
2997 pr_cont("\n");
2998 }
2999
3000 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
3001 {
3002 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3003
3004 misc_deregister(&dev->miscdev);
3005
3006 remove_toshiba_proc_entries(dev);
3007
3008 if (dev->accelerometer_supported && dev->indio_dev) {
3009 iio_device_unregister(dev->indio_dev);
3010 iio_device_free(dev->indio_dev);
3011 }
3012
3013 if (dev->sysfs_created)
3014 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3015 &toshiba_attr_group);
3016
3017 if (dev->ntfy_supported) {
3018 i8042_remove_filter(toshiba_acpi_i8042_filter);
3019 cancel_work_sync(&dev->hotkey_work);
3020 }
3021
3022 if (dev->hotkey_dev) {
3023 input_unregister_device(dev->hotkey_dev);
3024 sparse_keymap_free(dev->hotkey_dev);
3025 }
3026
3027 backlight_device_unregister(dev->backlight_dev);
3028
3029 if (dev->illumination_led_registered)
3030 led_classdev_unregister(&dev->led_dev);
3031
3032 if (dev->kbd_led_registered)
3033 led_classdev_unregister(&dev->kbd_led);
3034
3035 if (dev->eco_led_registered)
3036 led_classdev_unregister(&dev->eco_led);
3037
3038 if (dev->wwan_rfk) {
3039 rfkill_unregister(dev->wwan_rfk);
3040 rfkill_destroy(dev->wwan_rfk);
3041 }
3042
3043 if (toshiba_acpi)
3044 toshiba_acpi = NULL;
3045
3046 kfree(dev);
3047
3048 return 0;
3049 }
3050
3051 static const char *find_hci_method(acpi_handle handle)
3052 {
3053 if (acpi_has_method(handle, "GHCI"))
3054 return "GHCI";
3055
3056 if (acpi_has_method(handle, "SPFC"))
3057 return "SPFC";
3058
3059 return NULL;
3060 }
3061
3062 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3063 {
3064 struct toshiba_acpi_dev *dev;
3065 const char *hci_method;
3066 u32 dummy;
3067 int ret = 0;
3068
3069 if (toshiba_acpi)
3070 return -EBUSY;
3071
3072 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3073 TOSHIBA_ACPI_VERSION);
3074
3075 hci_method = find_hci_method(acpi_dev->handle);
3076 if (!hci_method) {
3077 pr_err("HCI interface not found\n");
3078 return -ENODEV;
3079 }
3080
3081 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3082 if (!dev)
3083 return -ENOMEM;
3084 dev->acpi_dev = acpi_dev;
3085 dev->method_hci = hci_method;
3086 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3087 dev->miscdev.name = "toshiba_acpi";
3088 dev->miscdev.fops = &toshiba_acpi_fops;
3089
3090 ret = misc_register(&dev->miscdev);
3091 if (ret) {
3092 pr_err("Failed to register miscdevice\n");
3093 kfree(dev);
3094 return ret;
3095 }
3096
3097 acpi_dev->driver_data = dev;
3098 dev_set_drvdata(&acpi_dev->dev, dev);
3099
3100 /* Query the BIOS for supported features */
3101
3102 /*
3103 * The "Special Functions" are always supported by the laptops
3104 * with the new keyboard layout, query for its presence to help
3105 * determine the keymap layout to use.
3106 */
3107 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3108 dev->kbd_function_keys_supported = !ret;
3109
3110 dev->hotkey_event_type = 0;
3111 if (toshiba_acpi_setup_keyboard(dev))
3112 pr_info("Unable to activate hotkeys\n");
3113
3114 /* Determine whether or not BIOS supports transflective backlight */
3115 ret = get_tr_backlight_status(dev, &dummy);
3116 dev->tr_backlight_supported = !ret;
3117
3118 ret = toshiba_acpi_setup_backlight(dev);
3119 if (ret)
3120 goto error;
3121
3122 toshiba_illumination_available(dev);
3123 if (dev->illumination_supported) {
3124 dev->led_dev.name = "toshiba::illumination";
3125 dev->led_dev.max_brightness = 1;
3126 dev->led_dev.brightness_set = toshiba_illumination_set;
3127 dev->led_dev.brightness_get = toshiba_illumination_get;
3128 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3129 dev->illumination_led_registered = true;
3130 }
3131
3132 toshiba_eco_mode_available(dev);
3133 if (dev->eco_supported) {
3134 dev->eco_led.name = "toshiba::eco_mode";
3135 dev->eco_led.max_brightness = 1;
3136 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3137 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3138 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3139 dev->eco_led_registered = true;
3140 }
3141
3142 toshiba_kbd_illum_available(dev);
3143 /*
3144 * Only register the LED if KBD illumination is supported
3145 * and the keyboard backlight operation mode is set to FN-Z
3146 */
3147 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
3148 dev->kbd_led.name = "toshiba::kbd_backlight";
3149 dev->kbd_led.max_brightness = 1;
3150 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3151 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3152 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3153 dev->kbd_led_registered = true;
3154 }
3155
3156 ret = toshiba_touchpad_get(dev, &dummy);
3157 dev->touchpad_supported = !ret;
3158
3159 toshiba_accelerometer_available(dev);
3160 if (dev->accelerometer_supported) {
3161 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3162 if (!dev->indio_dev) {
3163 pr_err("Unable to allocate iio device\n");
3164 goto iio_error;
3165 }
3166
3167 pr_info("Registering Toshiba accelerometer iio device\n");
3168
3169 dev->indio_dev->info = &toshiba_iio_accel_info;
3170 dev->indio_dev->name = "Toshiba accelerometer";
3171 dev->indio_dev->dev.parent = &acpi_dev->dev;
3172 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3173 dev->indio_dev->channels = toshiba_iio_accel_channels;
3174 dev->indio_dev->num_channels =
3175 ARRAY_SIZE(toshiba_iio_accel_channels);
3176
3177 ret = iio_device_register(dev->indio_dev);
3178 if (ret < 0) {
3179 pr_err("Unable to register iio device\n");
3180 iio_device_free(dev->indio_dev);
3181 }
3182 }
3183 iio_error:
3184
3185 toshiba_usb_sleep_charge_available(dev);
3186
3187 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3188 dev->usb_rapid_charge_supported = !ret;
3189
3190 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3191 dev->usb_sleep_music_supported = !ret;
3192
3193 ret = toshiba_panel_power_on_get(dev, &dummy);
3194 dev->panel_power_on_supported = !ret;
3195
3196 ret = toshiba_usb_three_get(dev, &dummy);
3197 dev->usb_three_supported = !ret;
3198
3199 ret = get_video_status(dev, &dummy);
3200 dev->video_supported = !ret;
3201
3202 ret = get_fan_status(dev, &dummy);
3203 dev->fan_supported = !ret;
3204
3205 toshiba_wwan_available(dev);
3206 if (dev->wwan_supported)
3207 toshiba_acpi_setup_wwan_rfkill(dev);
3208
3209 toshiba_cooling_method_available(dev);
3210
3211 print_supported_features(dev);
3212
3213 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3214 &toshiba_attr_group);
3215 if (ret) {
3216 dev->sysfs_created = 0;
3217 goto error;
3218 }
3219 dev->sysfs_created = !ret;
3220
3221 create_toshiba_proc_entries(dev);
3222
3223 toshiba_acpi = dev;
3224
3225 return 0;
3226
3227 error:
3228 toshiba_acpi_remove(acpi_dev);
3229 return ret;
3230 }
3231
3232 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3233 {
3234 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3235
3236 switch (event) {
3237 case 0x80: /* Hotkeys and some system events */
3238 /*
3239 * Machines with this WMI GUID aren't supported due to bugs in
3240 * their AML.
3241 *
3242 * Return silently to avoid triggering a netlink event.
3243 */
3244 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3245 return;
3246 toshiba_acpi_process_hotkeys(dev);
3247 break;
3248 case 0x81: /* Dock events */
3249 case 0x82:
3250 case 0x83:
3251 pr_info("Dock event received %x\n", event);
3252 break;
3253 case 0x88: /* Thermal events */
3254 pr_info("Thermal event received\n");
3255 break;
3256 case 0x8f: /* LID closed */
3257 case 0x90: /* LID is closed and Dock has been ejected */
3258 break;
3259 case 0x8c: /* SATA power events */
3260 case 0x8b:
3261 pr_info("SATA power event received %x\n", event);
3262 break;
3263 case 0x92: /* Keyboard backlight mode changed */
3264 toshiba_acpi->kbd_event_generated = true;
3265 /* Update sysfs entries */
3266 if (sysfs_update_group(&acpi_dev->dev.kobj,
3267 &toshiba_attr_group))
3268 pr_err("Unable to update sysfs entries\n");
3269 break;
3270 case 0x85: /* Unknown */
3271 case 0x8d: /* Unknown */
3272 case 0x8e: /* Unknown */
3273 case 0x94: /* Unknown */
3274 case 0x95: /* Unknown */
3275 default:
3276 pr_info("Unknown event received %x\n", event);
3277 break;
3278 }
3279
3280 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3281 dev_name(&acpi_dev->dev),
3282 event, (event == 0x80) ?
3283 dev->last_key_event : 0);
3284 }
3285
3286 #ifdef CONFIG_PM_SLEEP
3287 static int toshiba_acpi_suspend(struct device *device)
3288 {
3289 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3290
3291 if (dev->hotkey_dev) {
3292 u32 result;
3293
3294 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3295 if (result != TOS_SUCCESS)
3296 pr_info("Unable to disable hotkeys\n");
3297 }
3298
3299 return 0;
3300 }
3301
3302 static int toshiba_acpi_resume(struct device *device)
3303 {
3304 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3305
3306 if (dev->hotkey_dev) {
3307 if (toshiba_acpi_enable_hotkeys(dev))
3308 pr_info("Unable to re-enable hotkeys\n");
3309 }
3310
3311 if (dev->wwan_rfk) {
3312 if (!toshiba_wireless_status(dev))
3313 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3314 }
3315
3316 return 0;
3317 }
3318 #endif
3319
3320 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3321 toshiba_acpi_suspend, toshiba_acpi_resume);
3322
3323 static struct acpi_driver toshiba_acpi_driver = {
3324 .name = "Toshiba ACPI driver",
3325 .owner = THIS_MODULE,
3326 .ids = toshiba_device_ids,
3327 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3328 .ops = {
3329 .add = toshiba_acpi_add,
3330 .remove = toshiba_acpi_remove,
3331 .notify = toshiba_acpi_notify,
3332 },
3333 .drv.pm = &toshiba_acpi_pm,
3334 };
3335
3336 static int __init toshiba_acpi_init(void)
3337 {
3338 int ret;
3339
3340 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3341 if (!toshiba_proc_dir) {
3342 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3343 return -ENODEV;
3344 }
3345
3346 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3347 if (ret) {
3348 pr_err("Failed to register ACPI driver: %d\n", ret);
3349 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3350 }
3351
3352 return ret;
3353 }
3354
3355 static void __exit toshiba_acpi_exit(void)
3356 {
3357 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3358 if (toshiba_proc_dir)
3359 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3360 }
3361
3362 module_init(toshiba_acpi_init);
3363 module_exit(toshiba_acpi_exit);
Linux with added FPC-III support