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perf tools: Don't clone maps from parent when synthesizing forks
[linux/fpc-iii.git] / drivers / platform / x86 / toshiba_acpi.c
blobe366977bda418fa1c8de5a3879549927ba64883d
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 = memdup_user_nul(buf, count);
1507 if (IS_ERR(cmd))
1508 return PTR_ERR(cmd);
1509
1510 buffer = cmd;
1511
1512 /*
1513 * Scan expression. Multiple expressions may be delimited with ;
1514 * NOTE: To keep scanning simple, invalid fields are ignored.
1515 */
1516 while (remain) {
1517 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1518 lcd_out = value & 1;
1519 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1520 crt_out = value & 1;
1521 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1522 tv_out = value & 1;
1523 /* Advance to one character past the next ; */
1524 do {
1525 ++buffer;
1526 --remain;
1527 } while (remain && *(buffer - 1) != ';');
1528 }
1529
1530 kfree(cmd);
1531
1532 lcd_out = crt_out = tv_out = -1;
1533 ret = get_video_status(dev, &video_out);
1534 if (!ret) {
1535 unsigned int new_video_out = video_out;
1536
1537 if (lcd_out != -1)
1538 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1539 if (crt_out != -1)
1540 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1541 if (tv_out != -1)
1542 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1543 /*
1544 * To avoid unnecessary video disruption, only write the new
1545 * video setting if something changed.
1546 */
1547 if (new_video_out != video_out)
1548 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1549 }
1550
1551 return ret ? -EIO : count;
1552 }
1553
1554 static const struct file_operations video_proc_fops = {
1555 .owner = THIS_MODULE,
1556 .open = video_proc_open,
1557 .read = seq_read,
1558 .llseek = seq_lseek,
1559 .release = single_release,
1560 .write = video_proc_write,
1561 };
1562
1563 /* Fan status */
1564 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1565 {
1566 u32 result = hci_read(dev, HCI_FAN, status);
1567
1568 if (result == TOS_FAILURE)
1569 pr_err("ACPI call to get Fan status failed\n");
1570 else if (result == TOS_NOT_SUPPORTED)
1571 return -ENODEV;
1572
1573 return result == TOS_SUCCESS ? 0 : -EIO;
1574 }
1575
1576 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1577 {
1578 u32 result = hci_write(dev, HCI_FAN, status);
1579
1580 if (result == TOS_FAILURE)
1581 pr_err("ACPI call to set Fan status failed\n");
1582 else if (result == TOS_NOT_SUPPORTED)
1583 return -ENODEV;
1584
1585 return result == TOS_SUCCESS ? 0 : -EIO;
1586 }
1587
1588 static int fan_proc_show(struct seq_file *m, void *v)
1589 {
1590 struct toshiba_acpi_dev *dev = m->private;
1591 u32 value;
1592
1593 if (get_fan_status(dev, &value))
1594 return -EIO;
1595
1596 seq_printf(m, "running: %d\n", (value > 0));
1597 seq_printf(m, "force_on: %d\n", dev->force_fan);
1598
1599 return 0;
1600 }
1601
1602 static int fan_proc_open(struct inode *inode, struct file *file)
1603 {
1604 return single_open(file, fan_proc_show, PDE_DATA(inode));
1605 }
1606
1607 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1608 size_t count, loff_t *pos)
1609 {
1610 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1611 char cmd[42];
1612 size_t len;
1613 int value;
1614
1615 len = min(count, sizeof(cmd) - 1);
1616 if (copy_from_user(cmd, buf, len))
1617 return -EFAULT;
1618 cmd[len] = '\0';
1619
1620 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1621 value != 0 && value != 1)
1622 return -EINVAL;
1623
1624 if (set_fan_status(dev, value))
1625 return -EIO;
1626
1627 dev->force_fan = value;
1628
1629 return count;
1630 }
1631
1632 static const struct file_operations fan_proc_fops = {
1633 .owner = THIS_MODULE,
1634 .open = fan_proc_open,
1635 .read = seq_read,
1636 .llseek = seq_lseek,
1637 .release = single_release,
1638 .write = fan_proc_write,
1639 };
1640
1641 static int keys_proc_show(struct seq_file *m, void *v)
1642 {
1643 struct toshiba_acpi_dev *dev = m->private;
1644
1645 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1646 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1647
1648 return 0;
1649 }
1650
1651 static int keys_proc_open(struct inode *inode, struct file *file)
1652 {
1653 return single_open(file, keys_proc_show, PDE_DATA(inode));
1654 }
1655
1656 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1657 size_t count, loff_t *pos)
1658 {
1659 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1660 char cmd[42];
1661 size_t len;
1662 int value;
1663
1664 len = min(count, sizeof(cmd) - 1);
1665 if (copy_from_user(cmd, buf, len))
1666 return -EFAULT;
1667 cmd[len] = '\0';
1668
1669 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1670 dev->key_event_valid = 0;
1671 else
1672 return -EINVAL;
1673
1674 return count;
1675 }
1676
1677 static const struct file_operations keys_proc_fops = {
1678 .owner = THIS_MODULE,
1679 .open = keys_proc_open,
1680 .read = seq_read,
1681 .llseek = seq_lseek,
1682 .release = single_release,
1683 .write = keys_proc_write,
1684 };
1685
1686 static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1687 {
1688 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1689 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1690 return 0;
1691 }
1692
1693 /*
1694 * Proc and module init
1695 */
1696
1697 #define PROC_TOSHIBA "toshiba"
1698
1699 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1700 {
1701 if (dev->backlight_dev)
1702 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1703 &lcd_proc_fops, dev);
1704 if (dev->video_supported)
1705 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1706 &video_proc_fops, dev);
1707 if (dev->fan_supported)
1708 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1709 &fan_proc_fops, dev);
1710 if (dev->hotkey_dev)
1711 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1712 &keys_proc_fops, dev);
1713 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1714 version_proc_show, dev);
1715 }
1716
1717 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1718 {
1719 if (dev->backlight_dev)
1720 remove_proc_entry("lcd", toshiba_proc_dir);
1721 if (dev->video_supported)
1722 remove_proc_entry("video", toshiba_proc_dir);
1723 if (dev->fan_supported)
1724 remove_proc_entry("fan", toshiba_proc_dir);
1725 if (dev->hotkey_dev)
1726 remove_proc_entry("keys", toshiba_proc_dir);
1727 remove_proc_entry("version", toshiba_proc_dir);
1728 }
1729
1730 static const struct backlight_ops toshiba_backlight_data = {
1731 .options = BL_CORE_SUSPENDRESUME,
1732 .get_brightness = get_lcd_brightness,
1733 .update_status = set_lcd_status,
1734 };
1735
1736 /* Keyboard backlight work */
1737 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1738
1739 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1740
1741 /*
1742 * Sysfs files
1743 */
1744 static ssize_t version_show(struct device *dev,
1745 struct device_attribute *attr, char *buf)
1746 {
1747 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1748 }
1749 static DEVICE_ATTR_RO(version);
1750
1751 static ssize_t fan_store(struct device *dev,
1752 struct device_attribute *attr,
1753 const char *buf, size_t count)
1754 {
1755 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1756 int state;
1757 int ret;
1758
1759 ret = kstrtoint(buf, 0, &state);
1760 if (ret)
1761 return ret;
1762
1763 if (state != 0 && state != 1)
1764 return -EINVAL;
1765
1766 ret = set_fan_status(toshiba, state);
1767 if (ret)
1768 return ret;
1769
1770 return count;
1771 }
1772
1773 static ssize_t fan_show(struct device *dev,
1774 struct device_attribute *attr, char *buf)
1775 {
1776 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1777 u32 value;
1778 int ret;
1779
1780 ret = get_fan_status(toshiba, &value);
1781 if (ret)
1782 return ret;
1783
1784 return sprintf(buf, "%d\n", value);
1785 }
1786 static DEVICE_ATTR_RW(fan);
1787
1788 static ssize_t kbd_backlight_mode_store(struct device *dev,
1789 struct device_attribute *attr,
1790 const char *buf, size_t count)
1791 {
1792 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1793 int mode;
1794 int ret;
1795
1796
1797 ret = kstrtoint(buf, 0, &mode);
1798 if (ret)
1799 return ret;
1800
1801 /* Check for supported modes depending on keyboard backlight type */
1802 if (toshiba->kbd_type == 1) {
1803 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1804 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1805 return -EINVAL;
1806 } else if (toshiba->kbd_type == 2) {
1807 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1808 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1809 mode != SCI_KBD_MODE_OFF)
1810 return -EINVAL;
1811 }
1812
1813 /*
1814 * Set the Keyboard Backlight Mode where:
1815 * Auto - KBD backlight turns off automatically in given time
1816 * FN-Z - KBD backlight "toggles" when hotkey pressed
1817 * ON - KBD backlight is always on
1818 * OFF - KBD backlight is always off
1819 */
1820
1821 /* Only make a change if the actual mode has changed */
1822 if (toshiba->kbd_mode != mode) {
1823 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1824 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1825
1826 /* OR the "base time" to the actual method format */
1827 if (toshiba->kbd_type == 1) {
1828 /* Type 1 requires the current mode */
1829 time |= toshiba->kbd_mode;
1830 } else if (toshiba->kbd_type == 2) {
1831 /* Type 2 requires the desired mode */
1832 time |= mode;
1833 }
1834
1835 ret = toshiba_kbd_illum_status_set(toshiba, time);
1836 if (ret)
1837 return ret;
1838
1839 toshiba->kbd_mode = mode;
1840 toshiba_acpi->kbd_mode = mode;
1841
1842 /*
1843 * Some laptop models with the second generation backlit
1844 * keyboard (type 2) do not generate the keyboard backlight
1845 * changed event (0x92), and thus, the driver will never update
1846 * the sysfs entries.
1847 *
1848 * The event is generated right when changing the keyboard
1849 * backlight mode and the *notify function will set the
1850 * kbd_event_generated to true.
1851 *
1852 * In case the event is not generated, schedule the keyboard
1853 * backlight work to update the sysfs entries and emulate the
1854 * event via genetlink.
1855 */
1856 if (toshiba->kbd_type == 2 &&
1857 !toshiba->kbd_event_generated)
1858 schedule_work(&kbd_bl_work);
1859 }
1860
1861 return count;
1862 }
1863
1864 static ssize_t kbd_backlight_mode_show(struct device *dev,
1865 struct device_attribute *attr,
1866 char *buf)
1867 {
1868 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1869 u32 time;
1870
1871 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1872 return -EIO;
1873
1874 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1875 }
1876 static DEVICE_ATTR_RW(kbd_backlight_mode);
1877
1878 static ssize_t kbd_type_show(struct device *dev,
1879 struct device_attribute *attr, char *buf)
1880 {
1881 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1882
1883 return sprintf(buf, "%d\n", toshiba->kbd_type);
1884 }
1885 static DEVICE_ATTR_RO(kbd_type);
1886
1887 static ssize_t available_kbd_modes_show(struct device *dev,
1888 struct device_attribute *attr,
1889 char *buf)
1890 {
1891 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1892
1893 if (toshiba->kbd_type == 1)
1894 return sprintf(buf, "0x%x 0x%x\n",
1895 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1896
1897 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1898 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1899 }
1900 static DEVICE_ATTR_RO(available_kbd_modes);
1901
1902 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1903 struct device_attribute *attr,
1904 const char *buf, size_t count)
1905 {
1906 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1907 int time;
1908 int ret;
1909
1910 ret = kstrtoint(buf, 0, &time);
1911 if (ret)
1912 return ret;
1913
1914 /* Check for supported values depending on kbd_type */
1915 if (toshiba->kbd_type == 1) {
1916 if (time < 0 || time > 60)
1917 return -EINVAL;
1918 } else if (toshiba->kbd_type == 2) {
1919 if (time < 1 || time > 60)
1920 return -EINVAL;
1921 }
1922
1923 /* Set the Keyboard Backlight Timeout */
1924
1925 /* Only make a change if the actual timeout has changed */
1926 if (toshiba->kbd_time != time) {
1927 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1928 time = time << HCI_MISC_SHIFT;
1929 /* OR the "base time" to the actual method format */
1930 if (toshiba->kbd_type == 1)
1931 time |= SCI_KBD_MODE_FNZ;
1932 else if (toshiba->kbd_type == 2)
1933 time |= SCI_KBD_MODE_AUTO;
1934
1935 ret = toshiba_kbd_illum_status_set(toshiba, time);
1936 if (ret)
1937 return ret;
1938
1939 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1940 }
1941
1942 return count;
1943 }
1944
1945 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1946 struct device_attribute *attr,
1947 char *buf)
1948 {
1949 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1950 u32 time;
1951
1952 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1953 return -EIO;
1954
1955 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1956 }
1957 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1958
1959 static ssize_t touchpad_store(struct device *dev,
1960 struct device_attribute *attr,
1961 const char *buf, size_t count)
1962 {
1963 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1964 int state;
1965 int ret;
1966
1967 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1968 ret = kstrtoint(buf, 0, &state);
1969 if (ret)
1970 return ret;
1971 if (state != 0 && state != 1)
1972 return -EINVAL;
1973
1974 ret = toshiba_touchpad_set(toshiba, state);
1975 if (ret)
1976 return ret;
1977
1978 return count;
1979 }
1980
1981 static ssize_t touchpad_show(struct device *dev,
1982 struct device_attribute *attr, char *buf)
1983 {
1984 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1985 u32 state;
1986 int ret;
1987
1988 ret = toshiba_touchpad_get(toshiba, &state);
1989 if (ret < 0)
1990 return ret;
1991
1992 return sprintf(buf, "%i\n", state);
1993 }
1994 static DEVICE_ATTR_RW(touchpad);
1995
1996 static ssize_t usb_sleep_charge_show(struct device *dev,
1997 struct device_attribute *attr, char *buf)
1998 {
1999 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2000 u32 mode;
2001 int ret;
2002
2003 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2004 if (ret < 0)
2005 return ret;
2006
2007 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2008 }
2009
2010 static ssize_t usb_sleep_charge_store(struct device *dev,
2011 struct device_attribute *attr,
2012 const char *buf, size_t count)
2013 {
2014 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2015 int state;
2016 u32 mode;
2017 int ret;
2018
2019 ret = kstrtoint(buf, 0, &state);
2020 if (ret)
2021 return ret;
2022 /*
2023 * Check for supported values, where:
2024 * 0 - Disabled
2025 * 1 - Alternate (Non USB conformant devices that require more power)
2026 * 2 - Auto (USB conformant devices)
2027 * 3 - Typical
2028 */
2029 if (state != 0 && state != 1 && state != 2 && state != 3)
2030 return -EINVAL;
2031
2032 /* Set the USB charging mode to internal value */
2033 mode = toshiba->usbsc_mode_base;
2034 if (state == 0)
2035 mode |= SCI_USB_CHARGE_DISABLED;
2036 else if (state == 1)
2037 mode |= SCI_USB_CHARGE_ALTERNATE;
2038 else if (state == 2)
2039 mode |= SCI_USB_CHARGE_AUTO;
2040 else if (state == 3)
2041 mode |= SCI_USB_CHARGE_TYPICAL;
2042
2043 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2044 if (ret)
2045 return ret;
2046
2047 return count;
2048 }
2049 static DEVICE_ATTR_RW(usb_sleep_charge);
2050
2051 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2052 struct device_attribute *attr,
2053 char *buf)
2054 {
2055 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2056 int bat_lvl, status;
2057 u32 state;
2058 int ret;
2059 int tmp;
2060
2061 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2062 if (ret < 0)
2063 return ret;
2064
2065 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2066 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2067 status = (tmp == 0x4) ? 1 : 0;
2068 /* Determine the battery level set */
2069 bat_lvl = state >> HCI_MISC_SHIFT;
2070
2071 return sprintf(buf, "%d %d\n", status, bat_lvl);
2072 }
2073
2074 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2075 struct device_attribute *attr,
2076 const char *buf, size_t count)
2077 {
2078 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2079 u32 status;
2080 int value;
2081 int ret;
2082 int tmp;
2083
2084 ret = kstrtoint(buf, 0, &value);
2085 if (ret)
2086 return ret;
2087
2088 /*
2089 * Set the status of the function:
2090 * 0 - Disabled
2091 * 1-100 - Enabled
2092 */
2093 if (value < 0 || value > 100)
2094 return -EINVAL;
2095
2096 if (value == 0) {
2097 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2098 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2099 } else {
2100 tmp = value << HCI_MISC_SHIFT;
2101 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2102 }
2103 ret = toshiba_sleep_functions_status_set(toshiba, status);
2104 if (ret < 0)
2105 return ret;
2106
2107 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2108
2109 return count;
2110 }
2111 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2112
2113 static ssize_t usb_rapid_charge_show(struct device *dev,
2114 struct device_attribute *attr, char *buf)
2115 {
2116 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2117 u32 state;
2118 int ret;
2119
2120 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2121 if (ret < 0)
2122 return ret;
2123
2124 return sprintf(buf, "%d\n", state);
2125 }
2126
2127 static ssize_t usb_rapid_charge_store(struct device *dev,
2128 struct device_attribute *attr,
2129 const char *buf, size_t count)
2130 {
2131 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2132 int state;
2133 int ret;
2134
2135 ret = kstrtoint(buf, 0, &state);
2136 if (ret)
2137 return ret;
2138 if (state != 0 && state != 1)
2139 return -EINVAL;
2140
2141 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2142 if (ret)
2143 return ret;
2144
2145 return count;
2146 }
2147 static DEVICE_ATTR_RW(usb_rapid_charge);
2148
2149 static ssize_t usb_sleep_music_show(struct device *dev,
2150 struct device_attribute *attr, char *buf)
2151 {
2152 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2153 u32 state;
2154 int ret;
2155
2156 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2157 if (ret < 0)
2158 return ret;
2159
2160 return sprintf(buf, "%d\n", state);
2161 }
2162
2163 static ssize_t usb_sleep_music_store(struct device *dev,
2164 struct device_attribute *attr,
2165 const char *buf, size_t count)
2166 {
2167 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2168 int state;
2169 int ret;
2170
2171 ret = kstrtoint(buf, 0, &state);
2172 if (ret)
2173 return ret;
2174 if (state != 0 && state != 1)
2175 return -EINVAL;
2176
2177 ret = toshiba_usb_sleep_music_set(toshiba, state);
2178 if (ret)
2179 return ret;
2180
2181 return count;
2182 }
2183 static DEVICE_ATTR_RW(usb_sleep_music);
2184
2185 static ssize_t kbd_function_keys_show(struct device *dev,
2186 struct device_attribute *attr, char *buf)
2187 {
2188 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2189 int mode;
2190 int ret;
2191
2192 ret = toshiba_function_keys_get(toshiba, &mode);
2193 if (ret < 0)
2194 return ret;
2195
2196 return sprintf(buf, "%d\n", mode);
2197 }
2198
2199 static ssize_t kbd_function_keys_store(struct device *dev,
2200 struct device_attribute *attr,
2201 const char *buf, size_t count)
2202 {
2203 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2204 int mode;
2205 int ret;
2206
2207 ret = kstrtoint(buf, 0, &mode);
2208 if (ret)
2209 return ret;
2210 /*
2211 * Check for the function keys mode where:
2212 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2213 * 1 - Special functions (Opposite of the above setting)
2214 */
2215 if (mode != 0 && mode != 1)
2216 return -EINVAL;
2217
2218 ret = toshiba_function_keys_set(toshiba, mode);
2219 if (ret)
2220 return ret;
2221
2222 pr_info("Reboot for changes to KBD Function Keys to take effect");
2223
2224 return count;
2225 }
2226 static DEVICE_ATTR_RW(kbd_function_keys);
2227
2228 static ssize_t panel_power_on_show(struct device *dev,
2229 struct device_attribute *attr, char *buf)
2230 {
2231 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2232 u32 state;
2233 int ret;
2234
2235 ret = toshiba_panel_power_on_get(toshiba, &state);
2236 if (ret < 0)
2237 return ret;
2238
2239 return sprintf(buf, "%d\n", state);
2240 }
2241
2242 static ssize_t panel_power_on_store(struct device *dev,
2243 struct device_attribute *attr,
2244 const char *buf, size_t count)
2245 {
2246 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2247 int state;
2248 int ret;
2249
2250 ret = kstrtoint(buf, 0, &state);
2251 if (ret)
2252 return ret;
2253 if (state != 0 && state != 1)
2254 return -EINVAL;
2255
2256 ret = toshiba_panel_power_on_set(toshiba, state);
2257 if (ret)
2258 return ret;
2259
2260 pr_info("Reboot for changes to Panel Power ON to take effect");
2261
2262 return count;
2263 }
2264 static DEVICE_ATTR_RW(panel_power_on);
2265
2266 static ssize_t usb_three_show(struct device *dev,
2267 struct device_attribute *attr, char *buf)
2268 {
2269 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2270 u32 state;
2271 int ret;
2272
2273 ret = toshiba_usb_three_get(toshiba, &state);
2274 if (ret < 0)
2275 return ret;
2276
2277 return sprintf(buf, "%d\n", state);
2278 }
2279
2280 static ssize_t usb_three_store(struct device *dev,
2281 struct device_attribute *attr,
2282 const char *buf, size_t count)
2283 {
2284 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2285 int state;
2286 int ret;
2287
2288 ret = kstrtoint(buf, 0, &state);
2289 if (ret)
2290 return ret;
2291 /*
2292 * Check for USB 3 mode where:
2293 * 0 - Disabled (Acts like a USB 2 port, saving power)
2294 * 1 - Enabled
2295 */
2296 if (state != 0 && state != 1)
2297 return -EINVAL;
2298
2299 ret = toshiba_usb_three_set(toshiba, state);
2300 if (ret)
2301 return ret;
2302
2303 pr_info("Reboot for changes to USB 3 to take effect");
2304
2305 return count;
2306 }
2307 static DEVICE_ATTR_RW(usb_three);
2308
2309 static ssize_t cooling_method_show(struct device *dev,
2310 struct device_attribute *attr, char *buf)
2311 {
2312 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2313 int state;
2314 int ret;
2315
2316 ret = toshiba_cooling_method_get(toshiba, &state);
2317 if (ret < 0)
2318 return ret;
2319
2320 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2321 }
2322
2323 static ssize_t cooling_method_store(struct device *dev,
2324 struct device_attribute *attr,
2325 const char *buf, size_t count)
2326 {
2327 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2328 int state;
2329 int ret;
2330
2331 ret = kstrtoint(buf, 0, &state);
2332 if (ret)
2333 return ret;
2334
2335 /*
2336 * Check for supported values
2337 * Depending on the laptop model, some only support these two:
2338 * 0 - Maximum Performance
2339 * 1 - Battery Optimized
2340 *
2341 * While some others support all three methods:
2342 * 0 - Maximum Performance
2343 * 1 - Performance
2344 * 2 - Battery Optimized
2345 */
2346 if (state < 0 || state > toshiba->max_cooling_method)
2347 return -EINVAL;
2348
2349 ret = toshiba_cooling_method_set(toshiba, state);
2350 if (ret)
2351 return ret;
2352
2353 return count;
2354 }
2355 static DEVICE_ATTR_RW(cooling_method);
2356
2357 static struct attribute *toshiba_attributes[] = {
2358 &dev_attr_version.attr,
2359 &dev_attr_fan.attr,
2360 &dev_attr_kbd_backlight_mode.attr,
2361 &dev_attr_kbd_type.attr,
2362 &dev_attr_available_kbd_modes.attr,
2363 &dev_attr_kbd_backlight_timeout.attr,
2364 &dev_attr_touchpad.attr,
2365 &dev_attr_usb_sleep_charge.attr,
2366 &dev_attr_sleep_functions_on_battery.attr,
2367 &dev_attr_usb_rapid_charge.attr,
2368 &dev_attr_usb_sleep_music.attr,
2369 &dev_attr_kbd_function_keys.attr,
2370 &dev_attr_panel_power_on.attr,
2371 &dev_attr_usb_three.attr,
2372 &dev_attr_cooling_method.attr,
2373 NULL,
2374 };
2375
2376 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2377 struct attribute *attr, int idx)
2378 {
2379 struct device *dev = container_of(kobj, struct device, kobj);
2380 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2381 bool exists = true;
2382
2383 if (attr == &dev_attr_fan.attr)
2384 exists = (drv->fan_supported) ? true : false;
2385 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2386 exists = (drv->kbd_illum_supported) ? true : false;
2387 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2388 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2389 else if (attr == &dev_attr_touchpad.attr)
2390 exists = (drv->touchpad_supported) ? true : false;
2391 else if (attr == &dev_attr_usb_sleep_charge.attr)
2392 exists = (drv->usb_sleep_charge_supported) ? true : false;
2393 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2394 exists = (drv->usb_sleep_charge_supported) ? true : false;
2395 else if (attr == &dev_attr_usb_rapid_charge.attr)
2396 exists = (drv->usb_rapid_charge_supported) ? true : false;
2397 else if (attr == &dev_attr_usb_sleep_music.attr)
2398 exists = (drv->usb_sleep_music_supported) ? true : false;
2399 else if (attr == &dev_attr_kbd_function_keys.attr)
2400 exists = (drv->kbd_function_keys_supported) ? true : false;
2401 else if (attr == &dev_attr_panel_power_on.attr)
2402 exists = (drv->panel_power_on_supported) ? true : false;
2403 else if (attr == &dev_attr_usb_three.attr)
2404 exists = (drv->usb_three_supported) ? true : false;
2405 else if (attr == &dev_attr_cooling_method.attr)
2406 exists = (drv->cooling_method_supported) ? true : false;
2407
2408 return exists ? attr->mode : 0;
2409 }
2410
2411 static const struct attribute_group toshiba_attr_group = {
2412 .is_visible = toshiba_sysfs_is_visible,
2413 .attrs = toshiba_attributes,
2414 };
2415
2416 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2417 {
2418 /* Update the sysfs entries */
2419 if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2420 &toshiba_attr_group))
2421 pr_err("Unable to update sysfs entries\n");
2422
2423 /* Notify LED subsystem about keyboard backlight change */
2424 if (toshiba_acpi->kbd_type == 2 &&
2425 toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2426 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2427 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2428 LED_FULL : LED_OFF);
2429
2430 /* Emulate the keyboard backlight event */
2431 acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2432 dev_name(&toshiba_acpi->acpi_dev->dev),
2433 0x92, 0);
2434 }
2435
2436 /*
2437 * IIO device
2438 */
2439
2440 enum toshiba_iio_accel_chan {
2441 AXIS_X,
2442 AXIS_Y,
2443 AXIS_Z
2444 };
2445
2446 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2447 {
2448 u32 xyval, zval;
2449 int ret;
2450
2451 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2452 if (ret < 0)
2453 return ret;
2454
2455 switch (chan) {
2456 case AXIS_X:
2457 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2458 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2459 case AXIS_Y:
2460 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2461 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2462 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2463 case AXIS_Z:
2464 return zval & HCI_ACCEL_DIRECTION_MASK ?
2465 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2466 }
2467
2468 return ret;
2469 }
2470
2471 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2472 struct iio_chan_spec const *chan,
2473 int *val, int *val2, long mask)
2474 {
2475 int ret;
2476
2477 switch (mask) {
2478 case IIO_CHAN_INFO_RAW:
2479 ret = toshiba_iio_accel_get_axis(chan->channel);
2480 if (ret == -EIO || ret == -ENODEV)
2481 return ret;
2482
2483 *val = ret;
2484
2485 return IIO_VAL_INT;
2486 }
2487
2488 return -EINVAL;
2489 }
2490
2491 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2492 .type = IIO_ACCEL, \
2493 .modified = 1, \
2494 .channel = chan, \
2495 .channel2 = IIO_MOD_##axis, \
2496 .output = 1, \
2497 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2498 }
2499
2500 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2501 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2502 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2503 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2504 };
2505
2506 static const struct iio_info toshiba_iio_accel_info = {
2507 .read_raw = &toshiba_iio_accel_read_raw,
2508 };
2509
2510 /*
2511 * Misc device
2512 */
2513 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2514 {
2515 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2516 regs->edx, regs->esi, regs->edi };
2517 u32 out[TCI_WORDS];
2518 acpi_status status;
2519
2520 status = tci_raw(toshiba_acpi, in, out);
2521 if (ACPI_FAILURE(status)) {
2522 pr_err("ACPI call to query SMM registers failed\n");
2523 return -EIO;
2524 }
2525
2526 /* Fillout the SMM struct with the TCI call results */
2527 regs->eax = out[0];
2528 regs->ebx = out[1];
2529 regs->ecx = out[2];
2530 regs->edx = out[3];
2531 regs->esi = out[4];
2532 regs->edi = out[5];
2533
2534 return 0;
2535 }
2536
2537 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2538 unsigned long arg)
2539 {
2540 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2541 SMMRegisters regs;
2542 int ret;
2543
2544 if (!argp)
2545 return -EINVAL;
2546
2547 switch (cmd) {
2548 case TOSH_SMM:
2549 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2550 return -EFAULT;
2551 ret = toshiba_acpi_smm_bridge(&regs);
2552 if (ret)
2553 return ret;
2554 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2555 return -EFAULT;
2556 break;
2557 case TOSHIBA_ACPI_SCI:
2558 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2559 return -EFAULT;
2560 /* Ensure we are being called with a SCI_{GET, SET} register */
2561 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2562 return -EINVAL;
2563 if (!sci_open(toshiba_acpi))
2564 return -EIO;
2565 ret = toshiba_acpi_smm_bridge(&regs);
2566 sci_close(toshiba_acpi);
2567 if (ret)
2568 return ret;
2569 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2570 return -EFAULT;
2571 break;
2572 default:
2573 return -EINVAL;
2574 }
2575
2576 return 0;
2577 }
2578
2579 static const struct file_operations toshiba_acpi_fops = {
2580 .owner = THIS_MODULE,
2581 .unlocked_ioctl = toshiba_acpi_ioctl,
2582 .llseek = noop_llseek,
2583 };
2584
2585 /*
2586 * WWAN RFKill handlers
2587 */
2588 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2589 {
2590 struct toshiba_acpi_dev *dev = data;
2591 int ret;
2592
2593 ret = toshiba_wireless_status(dev);
2594 if (ret)
2595 return ret;
2596
2597 if (!dev->killswitch)
2598 return 0;
2599
2600 return toshiba_wwan_set(dev, !blocked);
2601 }
2602
2603 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2604 {
2605 struct toshiba_acpi_dev *dev = data;
2606
2607 if (toshiba_wireless_status(dev))
2608 return;
2609
2610 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2611 }
2612
2613 static const struct rfkill_ops wwan_rfk_ops = {
2614 .set_block = toshiba_acpi_wwan_set_block,
2615 .poll = toshiba_acpi_wwan_poll,
2616 };
2617
2618 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2619 {
2620 int ret = toshiba_wireless_status(dev);
2621
2622 if (ret)
2623 return ret;
2624
2625 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2626 &dev->acpi_dev->dev,
2627 RFKILL_TYPE_WWAN,
2628 &wwan_rfk_ops,
2629 dev);
2630 if (!dev->wwan_rfk) {
2631 pr_err("Unable to allocate WWAN rfkill device\n");
2632 return -ENOMEM;
2633 }
2634
2635 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2636
2637 ret = rfkill_register(dev->wwan_rfk);
2638 if (ret) {
2639 pr_err("Unable to register WWAN rfkill device\n");
2640 rfkill_destroy(dev->wwan_rfk);
2641 }
2642
2643 return ret;
2644 }
2645
2646 /*
2647 * Hotkeys
2648 */
2649 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2650 {
2651 acpi_status status;
2652 u32 result;
2653
2654 status = acpi_evaluate_object(dev->acpi_dev->handle,
2655 "ENAB", NULL, NULL);
2656 if (ACPI_FAILURE(status))
2657 return -ENODEV;
2658
2659 /*
2660 * Enable the "Special Functions" mode only if they are
2661 * supported and if they are activated.
2662 */
2663 if (dev->kbd_function_keys_supported && dev->special_functions)
2664 result = hci_write(dev, HCI_HOTKEY_EVENT,
2665 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2666 else
2667 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2668
2669 if (result == TOS_FAILURE)
2670 return -EIO;
2671 else if (result == TOS_NOT_SUPPORTED)
2672 return -ENODEV;
2673
2674 return 0;
2675 }
2676
2677 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2678 struct serio *port)
2679 {
2680 if (str & I8042_STR_AUXDATA)
2681 return false;
2682
2683 if (unlikely(data == 0xe0))
2684 return false;
2685
2686 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2687 schedule_work(&toshiba_acpi->hotkey_work);
2688 return true;
2689 }
2690
2691 return false;
2692 }
2693
2694 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2695 {
2696 acpi_handle ec_handle = ec_get_handle();
2697 acpi_status status;
2698
2699 if (!ec_handle)
2700 return;
2701
2702 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2703 if (ACPI_FAILURE(status))
2704 pr_err("ACPI NTFY method execution failed\n");
2705 }
2706
2707 /*
2708 * Returns hotkey scancode, or < 0 on failure.
2709 */
2710 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2711 {
2712 unsigned long long value;
2713 acpi_status status;
2714
2715 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2716 NULL, &value);
2717 if (ACPI_FAILURE(status)) {
2718 pr_err("ACPI INFO method execution failed\n");
2719 return -EIO;
2720 }
2721
2722 return value;
2723 }
2724
2725 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2726 int scancode)
2727 {
2728 if (scancode == 0x100)
2729 return;
2730
2731 /* Act on key press; ignore key release */
2732 if (scancode & 0x80)
2733 return;
2734
2735 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2736 pr_info("Unknown key %x\n", scancode);
2737 }
2738
2739 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2740 {
2741 if (dev->info_supported) {
2742 int scancode = toshiba_acpi_query_hotkey(dev);
2743
2744 if (scancode < 0) {
2745 pr_err("Failed to query hotkey event\n");
2746 } else if (scancode != 0) {
2747 toshiba_acpi_report_hotkey(dev, scancode);
2748 dev->key_event_valid = 1;
2749 dev->last_key_event = scancode;
2750 }
2751 } else if (dev->system_event_supported) {
2752 u32 result;
2753 u32 value;
2754 int retries = 3;
2755
2756 do {
2757 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2758 switch (result) {
2759 case TOS_SUCCESS:
2760 toshiba_acpi_report_hotkey(dev, (int)value);
2761 dev->key_event_valid = 1;
2762 dev->last_key_event = value;
2763 break;
2764 case TOS_NOT_SUPPORTED:
2765 /*
2766 * This is a workaround for an unresolved
2767 * issue on some machines where system events
2768 * sporadically become disabled.
2769 */
2770 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2771 if (result == TOS_SUCCESS)
2772 pr_notice("Re-enabled hotkeys\n");
2773 /* Fall through */
2774 default:
2775 retries--;
2776 break;
2777 }
2778 } while (retries && result != TOS_FIFO_EMPTY);
2779 }
2780 }
2781
2782 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2783 {
2784 const struct key_entry *keymap = toshiba_acpi_keymap;
2785 acpi_handle ec_handle;
2786 int error;
2787
2788 if (disable_hotkeys) {
2789 pr_info("Hotkeys disabled by module parameter\n");
2790 return 0;
2791 }
2792
2793 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2794 pr_info("WMI event detected, hotkeys will not be monitored\n");
2795 return 0;
2796 }
2797
2798 error = toshiba_acpi_enable_hotkeys(dev);
2799 if (error)
2800 return error;
2801
2802 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2803 pr_notice("Unable to query Hotkey Event Type\n");
2804
2805 dev->hotkey_dev = input_allocate_device();
2806 if (!dev->hotkey_dev)
2807 return -ENOMEM;
2808
2809 dev->hotkey_dev->name = "Toshiba input device";
2810 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2811 dev->hotkey_dev->id.bustype = BUS_HOST;
2812
2813 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2814 !dev->kbd_function_keys_supported)
2815 keymap = toshiba_acpi_keymap;
2816 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2817 dev->kbd_function_keys_supported)
2818 keymap = toshiba_acpi_alt_keymap;
2819 else
2820 pr_info("Unknown event type received %x\n",
2821 dev->hotkey_event_type);
2822 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2823 if (error)
2824 goto err_free_dev;
2825
2826 /*
2827 * For some machines the SCI responsible for providing hotkey
2828 * notification doesn't fire. We can trigger the notification
2829 * whenever the Fn key is pressed using the NTFY method, if
2830 * supported, so if it's present set up an i8042 key filter
2831 * for this purpose.
2832 */
2833 ec_handle = ec_get_handle();
2834 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2835 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2836
2837 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2838 if (error) {
2839 pr_err("Error installing key filter\n");
2840 goto err_free_dev;
2841 }
2842
2843 dev->ntfy_supported = 1;
2844 }
2845
2846 /*
2847 * Determine hotkey query interface. Prefer using the INFO
2848 * method when it is available.
2849 */
2850 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2851 dev->info_supported = 1;
2852 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2853 dev->system_event_supported = 1;
2854
2855 if (!dev->info_supported && !dev->system_event_supported) {
2856 pr_warn("No hotkey query interface found\n");
2857 goto err_remove_filter;
2858 }
2859
2860 error = input_register_device(dev->hotkey_dev);
2861 if (error) {
2862 pr_info("Unable to register input device\n");
2863 goto err_remove_filter;
2864 }
2865
2866 return 0;
2867
2868 err_remove_filter:
2869 if (dev->ntfy_supported)
2870 i8042_remove_filter(toshiba_acpi_i8042_filter);
2871 err_free_dev:
2872 input_free_device(dev->hotkey_dev);
2873 dev->hotkey_dev = NULL;
2874 return error;
2875 }
2876
2877 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2878 {
2879 struct backlight_properties props;
2880 int brightness;
2881 int ret;
2882
2883 /*
2884 * Some machines don't support the backlight methods at all, and
2885 * others support it read-only. Either of these is pretty useless,
2886 * so only register the backlight device if the backlight method
2887 * supports both reads and writes.
2888 */
2889 brightness = __get_lcd_brightness(dev);
2890 if (brightness < 0)
2891 return 0;
2892 /*
2893 * If transflective backlight is supported and the brightness is zero
2894 * (lowest brightness level), the set_lcd_brightness function will
2895 * activate the transflective backlight, making the LCD appear to be
2896 * turned off, simply increment the brightness level to avoid that.
2897 */
2898 if (dev->tr_backlight_supported && brightness == 0)
2899 brightness++;
2900 ret = set_lcd_brightness(dev, brightness);
2901 if (ret) {
2902 pr_debug("Backlight method is read-only, disabling backlight support\n");
2903 return 0;
2904 }
2905
2906 /*
2907 * Tell acpi-video-detect code to prefer vendor backlight on all
2908 * systems with transflective backlight and on dmi matched systems.
2909 */
2910 if (dev->tr_backlight_supported ||
2911 dmi_check_system(toshiba_vendor_backlight_dmi))
2912 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2913
2914 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2915 return 0;
2916
2917 memset(&props, 0, sizeof(props));
2918 props.type = BACKLIGHT_PLATFORM;
2919 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2920
2921 /* Adding an extra level and having 0 change to transflective mode */
2922 if (dev->tr_backlight_supported)
2923 props.max_brightness++;
2924
2925 dev->backlight_dev = backlight_device_register("toshiba",
2926 &dev->acpi_dev->dev,
2927 dev,
2928 &toshiba_backlight_data,
2929 &props);
2930 if (IS_ERR(dev->backlight_dev)) {
2931 ret = PTR_ERR(dev->backlight_dev);
2932 pr_err("Could not register toshiba backlight device\n");
2933 dev->backlight_dev = NULL;
2934 return ret;
2935 }
2936
2937 dev->backlight_dev->props.brightness = brightness;
2938 return 0;
2939 }
2940
2941 static void print_supported_features(struct toshiba_acpi_dev *dev)
2942 {
2943 pr_info("Supported laptop features:");
2944
2945 if (dev->hotkey_dev)
2946 pr_cont(" hotkeys");
2947 if (dev->backlight_dev)
2948 pr_cont(" backlight");
2949 if (dev->video_supported)
2950 pr_cont(" video-out");
2951 if (dev->fan_supported)
2952 pr_cont(" fan");
2953 if (dev->tr_backlight_supported)
2954 pr_cont(" transflective-backlight");
2955 if (dev->illumination_supported)
2956 pr_cont(" illumination");
2957 if (dev->kbd_illum_supported)
2958 pr_cont(" keyboard-backlight");
2959 if (dev->touchpad_supported)
2960 pr_cont(" touchpad");
2961 if (dev->eco_supported)
2962 pr_cont(" eco-led");
2963 if (dev->accelerometer_supported)
2964 pr_cont(" accelerometer-axes");
2965 if (dev->usb_sleep_charge_supported)
2966 pr_cont(" usb-sleep-charge");
2967 if (dev->usb_rapid_charge_supported)
2968 pr_cont(" usb-rapid-charge");
2969 if (dev->usb_sleep_music_supported)
2970 pr_cont(" usb-sleep-music");
2971 if (dev->kbd_function_keys_supported)
2972 pr_cont(" special-function-keys");
2973 if (dev->panel_power_on_supported)
2974 pr_cont(" panel-power-on");
2975 if (dev->usb_three_supported)
2976 pr_cont(" usb3");
2977 if (dev->wwan_supported)
2978 pr_cont(" wwan");
2979 if (dev->cooling_method_supported)
2980 pr_cont(" cooling-method");
2981
2982 pr_cont("\n");
2983 }
2984
2985 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2986 {
2987 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2988
2989 misc_deregister(&dev->miscdev);
2990
2991 remove_toshiba_proc_entries(dev);
2992
2993 if (dev->accelerometer_supported && dev->indio_dev) {
2994 iio_device_unregister(dev->indio_dev);
2995 iio_device_free(dev->indio_dev);
2996 }
2997
2998 if (dev->sysfs_created)
2999 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3000 &toshiba_attr_group);
3001
3002 if (dev->ntfy_supported) {
3003 i8042_remove_filter(toshiba_acpi_i8042_filter);
3004 cancel_work_sync(&dev->hotkey_work);
3005 }
3006
3007 if (dev->hotkey_dev)
3008 input_unregister_device(dev->hotkey_dev);
3009
3010 backlight_device_unregister(dev->backlight_dev);
3011
3012 if (dev->illumination_led_registered)
3013 led_classdev_unregister(&dev->led_dev);
3014
3015 if (dev->kbd_led_registered)
3016 led_classdev_unregister(&dev->kbd_led);
3017
3018 if (dev->eco_led_registered)
3019 led_classdev_unregister(&dev->eco_led);
3020
3021 if (dev->wwan_rfk) {
3022 rfkill_unregister(dev->wwan_rfk);
3023 rfkill_destroy(dev->wwan_rfk);
3024 }
3025
3026 if (toshiba_acpi)
3027 toshiba_acpi = NULL;
3028
3029 kfree(dev);
3030
3031 return 0;
3032 }
3033
3034 static const char *find_hci_method(acpi_handle handle)
3035 {
3036 if (acpi_has_method(handle, "GHCI"))
3037 return "GHCI";
3038
3039 if (acpi_has_method(handle, "SPFC"))
3040 return "SPFC";
3041
3042 return NULL;
3043 }
3044
3045 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3046 {
3047 struct toshiba_acpi_dev *dev;
3048 const char *hci_method;
3049 u32 dummy;
3050 int ret = 0;
3051
3052 if (toshiba_acpi)
3053 return -EBUSY;
3054
3055 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3056 TOSHIBA_ACPI_VERSION);
3057
3058 hci_method = find_hci_method(acpi_dev->handle);
3059 if (!hci_method) {
3060 pr_err("HCI interface not found\n");
3061 return -ENODEV;
3062 }
3063
3064 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3065 if (!dev)
3066 return -ENOMEM;
3067 dev->acpi_dev = acpi_dev;
3068 dev->method_hci = hci_method;
3069 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3070 dev->miscdev.name = "toshiba_acpi";
3071 dev->miscdev.fops = &toshiba_acpi_fops;
3072
3073 ret = misc_register(&dev->miscdev);
3074 if (ret) {
3075 pr_err("Failed to register miscdevice\n");
3076 kfree(dev);
3077 return ret;
3078 }
3079
3080 acpi_dev->driver_data = dev;
3081 dev_set_drvdata(&acpi_dev->dev, dev);
3082
3083 /* Query the BIOS for supported features */
3084
3085 /*
3086 * The "Special Functions" are always supported by the laptops
3087 * with the new keyboard layout, query for its presence to help
3088 * determine the keymap layout to use.
3089 */
3090 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3091 dev->kbd_function_keys_supported = !ret;
3092
3093 dev->hotkey_event_type = 0;
3094 if (toshiba_acpi_setup_keyboard(dev))
3095 pr_info("Unable to activate hotkeys\n");
3096
3097 /* Determine whether or not BIOS supports transflective backlight */
3098 ret = get_tr_backlight_status(dev, &dummy);
3099 dev->tr_backlight_supported = !ret;
3100
3101 ret = toshiba_acpi_setup_backlight(dev);
3102 if (ret)
3103 goto error;
3104
3105 toshiba_illumination_available(dev);
3106 if (dev->illumination_supported) {
3107 dev->led_dev.name = "toshiba::illumination";
3108 dev->led_dev.max_brightness = 1;
3109 dev->led_dev.brightness_set = toshiba_illumination_set;
3110 dev->led_dev.brightness_get = toshiba_illumination_get;
3111 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3112 dev->illumination_led_registered = true;
3113 }
3114
3115 toshiba_eco_mode_available(dev);
3116 if (dev->eco_supported) {
3117 dev->eco_led.name = "toshiba::eco_mode";
3118 dev->eco_led.max_brightness = 1;
3119 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3120 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3121 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3122 dev->eco_led_registered = true;
3123 }
3124
3125 toshiba_kbd_illum_available(dev);
3126 /*
3127 * Only register the LED if KBD illumination is supported
3128 * and the keyboard backlight operation mode is set to FN-Z
3129 * or we detect a second gen keyboard backlight
3130 */
3131 if (dev->kbd_illum_supported &&
3132 (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3133 dev->kbd_led.name = "toshiba::kbd_backlight";
3134 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3135 dev->kbd_led.max_brightness = 1;
3136 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3137 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3138 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3139 dev->kbd_led_registered = true;
3140 }
3141
3142 ret = toshiba_touchpad_get(dev, &dummy);
3143 dev->touchpad_supported = !ret;
3144
3145 toshiba_accelerometer_available(dev);
3146 if (dev->accelerometer_supported) {
3147 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3148 if (!dev->indio_dev) {
3149 pr_err("Unable to allocate iio device\n");
3150 goto iio_error;
3151 }
3152
3153 pr_info("Registering Toshiba accelerometer iio device\n");
3154
3155 dev->indio_dev->info = &toshiba_iio_accel_info;
3156 dev->indio_dev->name = "Toshiba accelerometer";
3157 dev->indio_dev->dev.parent = &acpi_dev->dev;
3158 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3159 dev->indio_dev->channels = toshiba_iio_accel_channels;
3160 dev->indio_dev->num_channels =
3161 ARRAY_SIZE(toshiba_iio_accel_channels);
3162
3163 ret = iio_device_register(dev->indio_dev);
3164 if (ret < 0) {
3165 pr_err("Unable to register iio device\n");
3166 iio_device_free(dev->indio_dev);
3167 }
3168 }
3169 iio_error:
3170
3171 toshiba_usb_sleep_charge_available(dev);
3172
3173 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3174 dev->usb_rapid_charge_supported = !ret;
3175
3176 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3177 dev->usb_sleep_music_supported = !ret;
3178
3179 ret = toshiba_panel_power_on_get(dev, &dummy);
3180 dev->panel_power_on_supported = !ret;
3181
3182 ret = toshiba_usb_three_get(dev, &dummy);
3183 dev->usb_three_supported = !ret;
3184
3185 ret = get_video_status(dev, &dummy);
3186 dev->video_supported = !ret;
3187
3188 ret = get_fan_status(dev, &dummy);
3189 dev->fan_supported = !ret;
3190
3191 toshiba_wwan_available(dev);
3192 if (dev->wwan_supported)
3193 toshiba_acpi_setup_wwan_rfkill(dev);
3194
3195 toshiba_cooling_method_available(dev);
3196
3197 print_supported_features(dev);
3198
3199 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3200 &toshiba_attr_group);
3201 if (ret) {
3202 dev->sysfs_created = 0;
3203 goto error;
3204 }
3205 dev->sysfs_created = !ret;
3206
3207 create_toshiba_proc_entries(dev);
3208
3209 toshiba_acpi = dev;
3210
3211 return 0;
3212
3213 error:
3214 toshiba_acpi_remove(acpi_dev);
3215 return ret;
3216 }
3217
3218 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3219 {
3220 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3221
3222 switch (event) {
3223 case 0x80: /* Hotkeys and some system events */
3224 /*
3225 * Machines with this WMI GUID aren't supported due to bugs in
3226 * their AML.
3227 *
3228 * Return silently to avoid triggering a netlink event.
3229 */
3230 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3231 return;
3232 toshiba_acpi_process_hotkeys(dev);
3233 break;
3234 case 0x81: /* Dock events */
3235 case 0x82:
3236 case 0x83:
3237 pr_info("Dock event received %x\n", event);
3238 break;
3239 case 0x88: /* Thermal events */
3240 pr_info("Thermal event received\n");
3241 break;
3242 case 0x8f: /* LID closed */
3243 case 0x90: /* LID is closed and Dock has been ejected */
3244 break;
3245 case 0x8c: /* SATA power events */
3246 case 0x8b:
3247 pr_info("SATA power event received %x\n", event);
3248 break;
3249 case 0x92: /* Keyboard backlight mode changed */
3250 dev->kbd_event_generated = true;
3251 /* Update sysfs entries */
3252 if (sysfs_update_group(&acpi_dev->dev.kobj,
3253 &toshiba_attr_group))
3254 pr_err("Unable to update sysfs entries\n");
3255 /* Notify LED subsystem about keyboard backlight change */
3256 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3257 led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3258 (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3259 LED_FULL : LED_OFF);
3260 break;
3261 case 0x85: /* Unknown */
3262 case 0x8d: /* Unknown */
3263 case 0x8e: /* Unknown */
3264 case 0x94: /* Unknown */
3265 case 0x95: /* Unknown */
3266 default:
3267 pr_info("Unknown event received %x\n", event);
3268 break;
3269 }
3270
3271 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3272 dev_name(&acpi_dev->dev),
3273 event, (event == 0x80) ?
3274 dev->last_key_event : 0);
3275 }
3276
3277 #ifdef CONFIG_PM_SLEEP
3278 static int toshiba_acpi_suspend(struct device *device)
3279 {
3280 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3281
3282 if (dev->hotkey_dev) {
3283 u32 result;
3284
3285 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3286 if (result != TOS_SUCCESS)
3287 pr_info("Unable to disable hotkeys\n");
3288 }
3289
3290 return 0;
3291 }
3292
3293 static int toshiba_acpi_resume(struct device *device)
3294 {
3295 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3296
3297 if (dev->hotkey_dev) {
3298 if (toshiba_acpi_enable_hotkeys(dev))
3299 pr_info("Unable to re-enable hotkeys\n");
3300 }
3301
3302 if (dev->wwan_rfk) {
3303 if (!toshiba_wireless_status(dev))
3304 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3305 }
3306
3307 return 0;
3308 }
3309 #endif
3310
3311 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3312 toshiba_acpi_suspend, toshiba_acpi_resume);
3313
3314 static struct acpi_driver toshiba_acpi_driver = {
3315 .name = "Toshiba ACPI driver",
3316 .owner = THIS_MODULE,
3317 .ids = toshiba_device_ids,
3318 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3319 .ops = {
3320 .add = toshiba_acpi_add,
3321 .remove = toshiba_acpi_remove,
3322 .notify = toshiba_acpi_notify,
3323 },
3324 .drv.pm = &toshiba_acpi_pm,
3325 };
3326
3327 static int __init toshiba_acpi_init(void)
3328 {
3329 int ret;
3330
3331 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3332 if (!toshiba_proc_dir) {
3333 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3334 return -ENODEV;
3335 }
3336
3337 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3338 if (ret) {
3339 pr_err("Failed to register ACPI driver: %d\n", ret);
3340 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3341 }
3342
3343 return ret;
3344 }
3345
3346 static void __exit toshiba_acpi_exit(void)
3347 {
3348 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3349 if (toshiba_proc_dir)
3350 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3351 }
3352
3353 module_init(toshiba_acpi_init);
3354 module_exit(toshiba_acpi_exit);
Linux with added FPC-III support