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Merge branch 'for-linus' of git://git.kernel.dk/linux-block
[deliverable/linux.git] / drivers / platform / x86 / toshiba_acpi.c
1 /*
2 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
3 *
4 * Copyright (C) 2002-2004 John Belmonte
5 * Copyright (C) 2008 Philip Langdale
6 * Copyright (C) 2010 Pierre Ducroquet
7 * Copyright (C) 2014-2015 Azael Avalos
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * The full GNU General Public License is included in this distribution in
20 * the file called "COPYING".
21 *
22 * The devolpment page for this driver is located at
23 * http://memebeam.org/toys/ToshibaAcpiDriver.
24 *
25 * Credits:
26 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
27 * engineering the Windows drivers
28 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
29 * Rob Miller - TV out and hotkeys help
30 */
31
32 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
33
34 #define TOSHIBA_ACPI_VERSION "0.23"
35 #define PROC_INTERFACE_VERSION 1
36
37 #include <linux/kernel.h>
38 #include <linux/module.h>
39 #include <linux/moduleparam.h>
40 #include <linux/init.h>
41 #include <linux/types.h>
42 #include <linux/proc_fs.h>
43 #include <linux/seq_file.h>
44 #include <linux/backlight.h>
45 #include <linux/input.h>
46 #include <linux/input/sparse-keymap.h>
47 #include <linux/leds.h>
48 #include <linux/slab.h>
49 #include <linux/workqueue.h>
50 #include <linux/i8042.h>
51 #include <linux/acpi.h>
52 #include <linux/dmi.h>
53 #include <linux/uaccess.h>
54 #include <linux/miscdevice.h>
55 #include <linux/rfkill.h>
56 #include <linux/toshiba.h>
57 #include <acpi/video.h>
58
59 MODULE_AUTHOR("John Belmonte");
60 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
61 MODULE_LICENSE("GPL");
62
63 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
64
65 /* Scan code for Fn key on TOS1900 models */
66 #define TOS1900_FN_SCAN 0x6e
67
68 /* Toshiba ACPI method paths */
69 #define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
70
71 /*
72 * The Toshiba configuration interface is composed of the HCI and the SCI,
73 * which are defined as follows:
74 *
75 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
76 * be uniform across all their models. Ideally we would just call
77 * dedicated ACPI methods instead of using this primitive interface.
78 * However the ACPI methods seem to be incomplete in some areas (for
79 * example they allow setting, but not reading, the LCD brightness value),
80 * so this is still useful.
81 *
82 * SCI stands for "System Configuration Interface" which aim is to
83 * conceal differences in hardware between different models.
84 */
85
86 #define TCI_WORDS 6
87
88 /* Operations */
89 #define HCI_SET 0xff00
90 #define HCI_GET 0xfe00
91 #define SCI_OPEN 0xf100
92 #define SCI_CLOSE 0xf200
93 #define SCI_GET 0xf300
94 #define SCI_SET 0xf400
95
96 /* Return codes */
97 #define TOS_SUCCESS 0x0000
98 #define TOS_SUCCESS2 0x0001
99 #define TOS_OPEN_CLOSE_OK 0x0044
100 #define TOS_FAILURE 0x1000
101 #define TOS_NOT_SUPPORTED 0x8000
102 #define TOS_ALREADY_OPEN 0x8100
103 #define TOS_NOT_OPENED 0x8200
104 #define TOS_INPUT_DATA_ERROR 0x8300
105 #define TOS_WRITE_PROTECTED 0x8400
106 #define TOS_NOT_PRESENT 0x8600
107 #define TOS_FIFO_EMPTY 0x8c00
108 #define TOS_DATA_NOT_AVAILABLE 0x8d20
109 #define TOS_NOT_INITIALIZED 0x8d50
110 #define TOS_NOT_INSTALLED 0x8e00
111
112 /* Registers */
113 #define HCI_FAN 0x0004
114 #define HCI_TR_BACKLIGHT 0x0005
115 #define HCI_SYSTEM_EVENT 0x0016
116 #define HCI_VIDEO_OUT 0x001c
117 #define HCI_HOTKEY_EVENT 0x001e
118 #define HCI_LCD_BRIGHTNESS 0x002a
119 #define HCI_WIRELESS 0x0056
120 #define HCI_ACCELEROMETER 0x006d
121 #define HCI_COOLING_METHOD 0x007f
122 #define HCI_KBD_ILLUMINATION 0x0095
123 #define HCI_ECO_MODE 0x0097
124 #define HCI_ACCELEROMETER2 0x00a6
125 #define HCI_SYSTEM_INFO 0xc000
126 #define SCI_PANEL_POWER_ON 0x010d
127 #define SCI_ILLUMINATION 0x014e
128 #define SCI_USB_SLEEP_CHARGE 0x0150
129 #define SCI_KBD_ILLUM_STATUS 0x015c
130 #define SCI_USB_SLEEP_MUSIC 0x015e
131 #define SCI_USB_THREE 0x0169
132 #define SCI_TOUCHPAD 0x050e
133 #define SCI_KBD_FUNCTION_KEYS 0x0522
134
135 /* Field definitions */
136 #define HCI_ACCEL_MASK 0x7fff
137 #define HCI_HOTKEY_DISABLE 0x0b
138 #define HCI_HOTKEY_ENABLE 0x09
139 #define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
140 #define HCI_LCD_BRIGHTNESS_BITS 3
141 #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
142 #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
143 #define HCI_MISC_SHIFT 0x10
144 #define HCI_SYSTEM_TYPE1 0x10
145 #define HCI_SYSTEM_TYPE2 0x11
146 #define HCI_VIDEO_OUT_LCD 0x1
147 #define HCI_VIDEO_OUT_CRT 0x2
148 #define HCI_VIDEO_OUT_TV 0x4
149 #define SCI_KBD_MODE_MASK 0x1f
150 #define SCI_KBD_MODE_FNZ 0x1
151 #define SCI_KBD_MODE_AUTO 0x2
152 #define SCI_KBD_MODE_ON 0x8
153 #define SCI_KBD_MODE_OFF 0x10
154 #define SCI_KBD_TIME_MAX 0x3c001a
155 #define HCI_WIRELESS_STATUS 0x1
156 #define HCI_WIRELESS_WWAN 0x3
157 #define HCI_WIRELESS_WWAN_STATUS 0x2000
158 #define HCI_WIRELESS_WWAN_POWER 0x4000
159 #define SCI_USB_CHARGE_MODE_MASK 0xff
160 #define SCI_USB_CHARGE_DISABLED 0x00
161 #define SCI_USB_CHARGE_ALTERNATE 0x09
162 #define SCI_USB_CHARGE_TYPICAL 0x11
163 #define SCI_USB_CHARGE_AUTO 0x21
164 #define SCI_USB_CHARGE_BAT_MASK 0x7
165 #define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
166 #define SCI_USB_CHARGE_BAT_LVL_ON 0x4
167 #define SCI_USB_CHARGE_BAT_LVL 0x0200
168 #define SCI_USB_CHARGE_RAPID_DSP 0x0300
169
170 struct toshiba_acpi_dev {
171 struct acpi_device *acpi_dev;
172 const char *method_hci;
173 struct input_dev *hotkey_dev;
174 struct work_struct hotkey_work;
175 struct backlight_device *backlight_dev;
176 struct led_classdev led_dev;
177 struct led_classdev kbd_led;
178 struct led_classdev eco_led;
179 struct miscdevice miscdev;
180 struct rfkill *wwan_rfk;
181
182 int force_fan;
183 int last_key_event;
184 int key_event_valid;
185 int kbd_type;
186 int kbd_mode;
187 int kbd_time;
188 int usbsc_bat_level;
189 int usbsc_mode_base;
190 int hotkey_event_type;
191 int max_cooling_method;
192
193 unsigned int illumination_supported:1;
194 unsigned int video_supported:1;
195 unsigned int fan_supported:1;
196 unsigned int system_event_supported:1;
197 unsigned int ntfy_supported:1;
198 unsigned int info_supported:1;
199 unsigned int tr_backlight_supported:1;
200 unsigned int kbd_illum_supported:1;
201 unsigned int touchpad_supported:1;
202 unsigned int eco_supported:1;
203 unsigned int accelerometer_supported:1;
204 unsigned int usb_sleep_charge_supported:1;
205 unsigned int usb_rapid_charge_supported:1;
206 unsigned int usb_sleep_music_supported:1;
207 unsigned int kbd_function_keys_supported:1;
208 unsigned int panel_power_on_supported:1;
209 unsigned int usb_three_supported:1;
210 unsigned int wwan_supported:1;
211 unsigned int cooling_method_supported:1;
212 unsigned int sysfs_created:1;
213 unsigned int special_functions;
214
215 bool kbd_event_generated;
216 bool kbd_led_registered;
217 bool illumination_led_registered;
218 bool eco_led_registered;
219 bool killswitch;
220 };
221
222 static struct toshiba_acpi_dev *toshiba_acpi;
223
224 static bool disable_hotkeys;
225 module_param(disable_hotkeys, bool, 0444);
226 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
227
228 static const struct acpi_device_id toshiba_device_ids[] = {
229 {"TOS6200", 0},
230 {"TOS6207", 0},
231 {"TOS6208", 0},
232 {"TOS1900", 0},
233 {"", 0},
234 };
235 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
236
237 static const struct key_entry toshiba_acpi_keymap[] = {
238 { KE_KEY, 0x9e, { KEY_RFKILL } },
239 { KE_KEY, 0x101, { KEY_MUTE } },
240 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
241 { KE_KEY, 0x103, { KEY_ZOOMIN } },
242 { KE_KEY, 0x10f, { KEY_TAB } },
243 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
244 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
245 { KE_KEY, 0x13b, { KEY_COFFEE } },
246 { KE_KEY, 0x13c, { KEY_BATTERY } },
247 { KE_KEY, 0x13d, { KEY_SLEEP } },
248 { KE_KEY, 0x13e, { KEY_SUSPEND } },
249 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
250 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
251 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
252 { KE_KEY, 0x142, { KEY_WLAN } },
253 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
254 { KE_KEY, 0x17f, { KEY_FN } },
255 { KE_KEY, 0xb05, { KEY_PROG2 } },
256 { KE_KEY, 0xb06, { KEY_WWW } },
257 { KE_KEY, 0xb07, { KEY_MAIL } },
258 { KE_KEY, 0xb30, { KEY_STOP } },
259 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
260 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
261 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
262 { KE_KEY, 0xb5a, { KEY_MEDIA } },
263 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
264 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
265 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
266 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
267 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
268 { KE_END, 0 },
269 };
270
271 static const struct key_entry toshiba_acpi_alt_keymap[] = {
272 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
273 { KE_KEY, 0x103, { KEY_ZOOMIN } },
274 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
275 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
276 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
277 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
278 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
279 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
280 { KE_KEY, 0x157, { KEY_MUTE } },
281 { KE_KEY, 0x158, { KEY_WLAN } },
282 { KE_END, 0 },
283 };
284
285 /*
286 * List of models which have a broken acpi-video backlight interface and thus
287 * need to use the toshiba (vendor) interface instead.
288 */
289 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
290 {}
291 };
292
293 /*
294 * Utility
295 */
296
297 static inline void _set_bit(u32 *word, u32 mask, int value)
298 {
299 *word = (*word & ~mask) | (mask * value);
300 }
301
302 /*
303 * ACPI interface wrappers
304 */
305
306 static int write_acpi_int(const char *methodName, int val)
307 {
308 acpi_status status;
309
310 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
311 return (status == AE_OK) ? 0 : -EIO;
312 }
313
314 /*
315 * Perform a raw configuration call. Here we don't care about input or output
316 * buffer format.
317 */
318 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
319 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
320 {
321 struct acpi_object_list params;
322 union acpi_object in_objs[TCI_WORDS];
323 struct acpi_buffer results;
324 union acpi_object out_objs[TCI_WORDS + 1];
325 acpi_status status;
326 int i;
327
328 params.count = TCI_WORDS;
329 params.pointer = in_objs;
330 for (i = 0; i < TCI_WORDS; ++i) {
331 in_objs[i].type = ACPI_TYPE_INTEGER;
332 in_objs[i].integer.value = in[i];
333 }
334
335 results.length = sizeof(out_objs);
336 results.pointer = out_objs;
337
338 status = acpi_evaluate_object(dev->acpi_dev->handle,
339 (char *)dev->method_hci, &params,
340 &results);
341 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
342 for (i = 0; i < out_objs->package.count; ++i)
343 out[i] = out_objs->package.elements[i].integer.value;
344 }
345
346 return status;
347 }
348
349 /*
350 * Common hci tasks
351 *
352 * In addition to the ACPI status, the HCI system returns a result which
353 * may be useful (such as "not supported").
354 */
355
356 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
357 {
358 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
359 u32 out[TCI_WORDS];
360 acpi_status status = tci_raw(dev, in, out);
361
362 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
363 }
364
365 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
366 {
367 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
368 u32 out[TCI_WORDS];
369 acpi_status status = tci_raw(dev, in, out);
370
371 if (ACPI_FAILURE(status))
372 return TOS_FAILURE;
373
374 *out1 = out[2];
375
376 return out[0];
377 }
378
379 /*
380 * Common sci tasks
381 */
382
383 static int sci_open(struct toshiba_acpi_dev *dev)
384 {
385 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
386 u32 out[TCI_WORDS];
387 acpi_status status;
388
389 status = tci_raw(dev, in, out);
390 if (ACPI_FAILURE(status)) {
391 pr_err("ACPI call to open SCI failed\n");
392 return 0;
393 }
394
395 if (out[0] == TOS_OPEN_CLOSE_OK) {
396 return 1;
397 } else if (out[0] == TOS_ALREADY_OPEN) {
398 pr_info("Toshiba SCI already opened\n");
399 return 1;
400 } else if (out[0] == TOS_NOT_SUPPORTED) {
401 /*
402 * Some BIOSes do not have the SCI open/close functions
403 * implemented and return 0x8000 (Not Supported), failing to
404 * register some supported features.
405 *
406 * Simply return 1 if we hit those affected laptops to make the
407 * supported features work.
408 *
409 * In the case that some laptops really do not support the SCI,
410 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
411 * and thus, not registering support for the queried feature.
412 */
413 return 1;
414 } else if (out[0] == TOS_NOT_PRESENT) {
415 pr_info("Toshiba SCI is not present\n");
416 }
417
418 return 0;
419 }
420
421 static void sci_close(struct toshiba_acpi_dev *dev)
422 {
423 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
424 u32 out[TCI_WORDS];
425 acpi_status status;
426
427 status = tci_raw(dev, in, out);
428 if (ACPI_FAILURE(status)) {
429 pr_err("ACPI call to close SCI failed\n");
430 return;
431 }
432
433 if (out[0] == TOS_OPEN_CLOSE_OK)
434 return;
435 else if (out[0] == TOS_NOT_OPENED)
436 pr_info("Toshiba SCI not opened\n");
437 else if (out[0] == TOS_NOT_PRESENT)
438 pr_info("Toshiba SCI is not present\n");
439 }
440
441 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
442 {
443 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
444 u32 out[TCI_WORDS];
445 acpi_status status = tci_raw(dev, in, out);
446
447 if (ACPI_FAILURE(status))
448 return TOS_FAILURE;
449
450 *out1 = out[2];
451
452 return out[0];
453 }
454
455 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
456 {
457 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
458 u32 out[TCI_WORDS];
459 acpi_status status = tci_raw(dev, in, out);
460
461 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
462 }
463
464 /* Illumination support */
465 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
466 {
467 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
468 u32 out[TCI_WORDS];
469 acpi_status status;
470
471 dev->illumination_supported = 0;
472 dev->illumination_led_registered = false;
473
474 if (!sci_open(dev))
475 return;
476
477 status = tci_raw(dev, in, out);
478 sci_close(dev);
479 if (ACPI_FAILURE(status))
480 pr_err("ACPI call to query Illumination support failed\n");
481 else if (out[0] == TOS_SUCCESS)
482 dev->illumination_supported = 1;
483 }
484
485 static void toshiba_illumination_set(struct led_classdev *cdev,
486 enum led_brightness brightness)
487 {
488 struct toshiba_acpi_dev *dev = container_of(cdev,
489 struct toshiba_acpi_dev, led_dev);
490 u32 result;
491 u32 state;
492
493 /* First request : initialize communication. */
494 if (!sci_open(dev))
495 return;
496
497 /* Switch the illumination on/off */
498 state = brightness ? 1 : 0;
499 result = sci_write(dev, SCI_ILLUMINATION, state);
500 sci_close(dev);
501 if (result == TOS_FAILURE)
502 pr_err("ACPI call for illumination failed\n");
503 }
504
505 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
506 {
507 struct toshiba_acpi_dev *dev = container_of(cdev,
508 struct toshiba_acpi_dev, led_dev);
509 u32 state, result;
510
511 /* First request : initialize communication. */
512 if (!sci_open(dev))
513 return LED_OFF;
514
515 /* Check the illumination */
516 result = sci_read(dev, SCI_ILLUMINATION, &state);
517 sci_close(dev);
518 if (result == TOS_FAILURE) {
519 pr_err("ACPI call for illumination failed\n");
520 return LED_OFF;
521 } else if (result != TOS_SUCCESS) {
522 return LED_OFF;
523 }
524
525 return state ? LED_FULL : LED_OFF;
526 }
527
528 /* KBD Illumination */
529 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
530 {
531 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
532 u32 out[TCI_WORDS];
533 acpi_status status;
534
535 dev->kbd_illum_supported = 0;
536 dev->kbd_led_registered = false;
537 dev->kbd_event_generated = false;
538
539 if (!sci_open(dev))
540 return;
541
542 status = tci_raw(dev, in, out);
543 sci_close(dev);
544 if (ACPI_FAILURE(status)) {
545 pr_err("ACPI call to query kbd illumination support failed\n");
546 } else if (out[0] == TOS_SUCCESS) {
547 /*
548 * Check for keyboard backlight timeout max value,
549 * previous kbd backlight implementation set this to
550 * 0x3c0003, and now the new implementation set this
551 * to 0x3c001a, use this to distinguish between them.
552 */
553 if (out[3] == SCI_KBD_TIME_MAX)
554 dev->kbd_type = 2;
555 else
556 dev->kbd_type = 1;
557 /* Get the current keyboard backlight mode */
558 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
559 /* Get the current time (1-60 seconds) */
560 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
561 /* Flag as supported */
562 dev->kbd_illum_supported = 1;
563 }
564 }
565
566 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
567 {
568 u32 result;
569
570 if (!sci_open(dev))
571 return -EIO;
572
573 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
574 sci_close(dev);
575 if (result == TOS_FAILURE)
576 pr_err("ACPI call to set KBD backlight status failed\n");
577 else if (result == TOS_NOT_SUPPORTED)
578 return -ENODEV;
579
580 return result == TOS_SUCCESS ? 0 : -EIO;
581 }
582
583 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
584 {
585 u32 result;
586
587 if (!sci_open(dev))
588 return -EIO;
589
590 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
591 sci_close(dev);
592 if (result == TOS_FAILURE)
593 pr_err("ACPI call to get KBD backlight status failed\n");
594 else if (result == TOS_NOT_SUPPORTED)
595 return -ENODEV;
596
597 return result == TOS_SUCCESS ? 0 : -EIO;
598 }
599
600 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
601 {
602 struct toshiba_acpi_dev *dev = container_of(cdev,
603 struct toshiba_acpi_dev, kbd_led);
604 u32 result;
605 u32 state;
606
607 /* Check the keyboard backlight state */
608 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
609 if (result == TOS_FAILURE) {
610 pr_err("ACPI call to get the keyboard backlight failed\n");
611 return LED_OFF;
612 } else if (result != TOS_SUCCESS) {
613 return LED_OFF;
614 }
615
616 return state ? LED_FULL : LED_OFF;
617 }
618
619 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
620 enum led_brightness brightness)
621 {
622 struct toshiba_acpi_dev *dev = container_of(cdev,
623 struct toshiba_acpi_dev, kbd_led);
624 u32 result;
625 u32 state;
626
627 /* Set the keyboard backlight state */
628 state = brightness ? 1 : 0;
629 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
630 if (result == TOS_FAILURE)
631 pr_err("ACPI call to set KBD Illumination mode failed\n");
632 }
633
634 /* TouchPad support */
635 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
636 {
637 u32 result;
638
639 if (!sci_open(dev))
640 return -EIO;
641
642 result = sci_write(dev, SCI_TOUCHPAD, state);
643 sci_close(dev);
644 if (result == TOS_FAILURE)
645 pr_err("ACPI call to set the touchpad failed\n");
646 else if (result == TOS_NOT_SUPPORTED)
647 return -ENODEV;
648
649 return result == TOS_SUCCESS ? 0 : -EIO;
650 }
651
652 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
653 {
654 u32 result;
655
656 if (!sci_open(dev))
657 return -EIO;
658
659 result = sci_read(dev, SCI_TOUCHPAD, state);
660 sci_close(dev);
661 if (result == TOS_FAILURE)
662 pr_err("ACPI call to query the touchpad failed\n");
663 else if (result == TOS_NOT_SUPPORTED)
664 return -ENODEV;
665
666 return result == TOS_SUCCESS ? 0 : -EIO;
667 }
668
669 /* Eco Mode support */
670 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
671 {
672 acpi_status status;
673 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
674 u32 out[TCI_WORDS];
675
676 dev->eco_supported = 0;
677 dev->eco_led_registered = false;
678
679 status = tci_raw(dev, in, out);
680 if (ACPI_FAILURE(status)) {
681 pr_err("ACPI call to get ECO led failed\n");
682 } else if (out[0] == TOS_INPUT_DATA_ERROR) {
683 /*
684 * If we receive 0x8300 (Input Data Error), it means that the
685 * LED device is present, but that we just screwed the input
686 * parameters.
687 *
688 * Let's query the status of the LED to see if we really have a
689 * success response, indicating the actual presense of the LED,
690 * bail out otherwise.
691 */
692 in[3] = 1;
693 status = tci_raw(dev, in, out);
694 if (ACPI_FAILURE(status))
695 pr_err("ACPI call to get ECO led failed\n");
696 else if (out[0] == TOS_SUCCESS)
697 dev->eco_supported = 1;
698 }
699 }
700
701 static enum led_brightness
702 toshiba_eco_mode_get_status(struct led_classdev *cdev)
703 {
704 struct toshiba_acpi_dev *dev = container_of(cdev,
705 struct toshiba_acpi_dev, eco_led);
706 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
707 u32 out[TCI_WORDS];
708 acpi_status status;
709
710 status = tci_raw(dev, in, out);
711 if (ACPI_FAILURE(status)) {
712 pr_err("ACPI call to get ECO led failed\n");
713 return LED_OFF;
714 } else if (out[0] != TOS_SUCCESS) {
715 return LED_OFF;
716 }
717
718 return out[2] ? LED_FULL : LED_OFF;
719 }
720
721 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
722 enum led_brightness brightness)
723 {
724 struct toshiba_acpi_dev *dev = container_of(cdev,
725 struct toshiba_acpi_dev, eco_led);
726 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
727 u32 out[TCI_WORDS];
728 acpi_status status;
729
730 /* Switch the Eco Mode led on/off */
731 in[2] = (brightness) ? 1 : 0;
732 status = tci_raw(dev, in, out);
733 if (ACPI_FAILURE(status))
734 pr_err("ACPI call to set ECO led failed\n");
735 }
736
737 /* Accelerometer support */
738 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
739 {
740 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
741 u32 out[TCI_WORDS];
742 acpi_status status;
743
744 dev->accelerometer_supported = 0;
745
746 /*
747 * Check if the accelerometer call exists,
748 * this call also serves as initialization
749 */
750 status = tci_raw(dev, in, out);
751 if (ACPI_FAILURE(status))
752 pr_err("ACPI call to query the accelerometer failed\n");
753 else if (out[0] == TOS_SUCCESS)
754 dev->accelerometer_supported = 1;
755 }
756
757 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
758 u32 *xy, u32 *z)
759 {
760 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
761 u32 out[TCI_WORDS];
762 acpi_status status;
763
764 /* Check the Accelerometer status */
765 status = tci_raw(dev, in, out);
766 if (ACPI_FAILURE(status)) {
767 pr_err("ACPI call to query the accelerometer failed\n");
768 return -EIO;
769 } else if (out[0] == TOS_NOT_SUPPORTED) {
770 return -ENODEV;
771 } else if (out[0] == TOS_SUCCESS) {
772 *xy = out[2];
773 *z = out[4];
774 return 0;
775 }
776
777 return -EIO;
778 }
779
780 /* Sleep (Charge and Music) utilities support */
781 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
782 {
783 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
784 u32 out[TCI_WORDS];
785 acpi_status status;
786
787 dev->usb_sleep_charge_supported = 0;
788
789 if (!sci_open(dev))
790 return;
791
792 status = tci_raw(dev, in, out);
793 if (ACPI_FAILURE(status)) {
794 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
795 sci_close(dev);
796 return;
797 } else if (out[0] == TOS_NOT_SUPPORTED) {
798 sci_close(dev);
799 return;
800 } else if (out[0] == TOS_SUCCESS) {
801 dev->usbsc_mode_base = out[4];
802 }
803
804 in[5] = SCI_USB_CHARGE_BAT_LVL;
805 status = tci_raw(dev, in, out);
806 sci_close(dev);
807 if (ACPI_FAILURE(status)) {
808 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
809 } else if (out[0] == TOS_SUCCESS) {
810 dev->usbsc_bat_level = out[2];
811 /* Flag as supported */
812 dev->usb_sleep_charge_supported = 1;
813 }
814
815 }
816
817 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
818 u32 *mode)
819 {
820 u32 result;
821
822 if (!sci_open(dev))
823 return -EIO;
824
825 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
826 sci_close(dev);
827 if (result == TOS_FAILURE)
828 pr_err("ACPI call to set USB S&C mode failed\n");
829 else if (result == TOS_NOT_SUPPORTED)
830 return -ENODEV;
831
832 return result == TOS_SUCCESS ? 0 : -EIO;
833 }
834
835 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
836 u32 mode)
837 {
838 u32 result;
839
840 if (!sci_open(dev))
841 return -EIO;
842
843 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
844 sci_close(dev);
845 if (result == TOS_FAILURE)
846 pr_err("ACPI call to set USB S&C mode failed\n");
847 else if (result == TOS_NOT_SUPPORTED)
848 return -ENODEV;
849
850 return result == TOS_SUCCESS ? 0 : -EIO;
851 }
852
853 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
854 u32 *mode)
855 {
856 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
857 u32 out[TCI_WORDS];
858 acpi_status status;
859
860 if (!sci_open(dev))
861 return -EIO;
862
863 in[5] = SCI_USB_CHARGE_BAT_LVL;
864 status = tci_raw(dev, in, out);
865 sci_close(dev);
866 if (ACPI_FAILURE(status)) {
867 pr_err("ACPI call to get USB S&C battery level failed\n");
868 } else if (out[0] == TOS_NOT_SUPPORTED) {
869 return -ENODEV;
870 } else if (out[0] == TOS_SUCCESS) {
871 *mode = out[2];
872 return 0;
873 }
874
875 return -EIO;
876 }
877
878 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
879 u32 mode)
880 {
881 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
882 u32 out[TCI_WORDS];
883 acpi_status status;
884
885 if (!sci_open(dev))
886 return -EIO;
887
888 in[2] = mode;
889 in[5] = SCI_USB_CHARGE_BAT_LVL;
890 status = tci_raw(dev, in, out);
891 sci_close(dev);
892 if (ACPI_FAILURE(status))
893 pr_err("ACPI call to set USB S&C battery level failed\n");
894 else if (out[0] == TOS_NOT_SUPPORTED)
895 return -ENODEV;
896
897 return out[0] == TOS_SUCCESS ? 0 : -EIO;
898 }
899
900 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
901 u32 *state)
902 {
903 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
904 u32 out[TCI_WORDS];
905 acpi_status status;
906
907 if (!sci_open(dev))
908 return -EIO;
909
910 in[5] = SCI_USB_CHARGE_RAPID_DSP;
911 status = tci_raw(dev, in, out);
912 sci_close(dev);
913 if (ACPI_FAILURE(status)) {
914 pr_err("ACPI call to get USB Rapid Charge failed\n");
915 } else if (out[0] == TOS_NOT_SUPPORTED) {
916 return -ENODEV;
917 } else if (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) {
918 *state = out[2];
919 return 0;
920 }
921
922 return -EIO;
923 }
924
925 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
926 u32 state)
927 {
928 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
929 u32 out[TCI_WORDS];
930 acpi_status status;
931
932 if (!sci_open(dev))
933 return -EIO;
934
935 in[2] = state;
936 in[5] = SCI_USB_CHARGE_RAPID_DSP;
937 status = tci_raw(dev, in, out);
938 sci_close(dev);
939 if (ACPI_FAILURE(status))
940 pr_err("ACPI call to set USB Rapid Charge failed\n");
941 else if (out[0] == TOS_NOT_SUPPORTED)
942 return -ENODEV;
943
944 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
945 }
946
947 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
948 {
949 u32 result;
950
951 if (!sci_open(dev))
952 return -EIO;
953
954 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
955 sci_close(dev);
956 if (result == TOS_FAILURE)
957 pr_err("ACPI call to get Sleep and Music failed\n");
958 else if (result == TOS_NOT_SUPPORTED)
959 return -ENODEV;
960
961 return result == TOS_SUCCESS ? 0 : -EIO;
962 }
963
964 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
965 {
966 u32 result;
967
968 if (!sci_open(dev))
969 return -EIO;
970
971 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
972 sci_close(dev);
973 if (result == TOS_FAILURE)
974 pr_err("ACPI call to set Sleep and Music failed\n");
975 else if (result == TOS_NOT_SUPPORTED)
976 return -ENODEV;
977
978 return result == TOS_SUCCESS ? 0 : -EIO;
979 }
980
981 /* Keyboard function keys */
982 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
983 {
984 u32 result;
985
986 if (!sci_open(dev))
987 return -EIO;
988
989 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
990 sci_close(dev);
991 if (result == TOS_FAILURE)
992 pr_err("ACPI call to get KBD function keys failed\n");
993 else if (result == TOS_NOT_SUPPORTED)
994 return -ENODEV;
995
996 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
997 }
998
999 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1000 {
1001 u32 result;
1002
1003 if (!sci_open(dev))
1004 return -EIO;
1005
1006 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1007 sci_close(dev);
1008 if (result == TOS_FAILURE)
1009 pr_err("ACPI call to set KBD function keys failed\n");
1010 else if (result == TOS_NOT_SUPPORTED)
1011 return -ENODEV;
1012
1013 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1014 }
1015
1016 /* Panel Power ON */
1017 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1018 {
1019 u32 result;
1020
1021 if (!sci_open(dev))
1022 return -EIO;
1023
1024 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1025 sci_close(dev);
1026 if (result == TOS_FAILURE)
1027 pr_err("ACPI call to get Panel Power ON failed\n");
1028 else if (result == TOS_NOT_SUPPORTED)
1029 return -ENODEV;
1030
1031 return result == TOS_SUCCESS ? 0 : -EIO;
1032 }
1033
1034 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1035 {
1036 u32 result;
1037
1038 if (!sci_open(dev))
1039 return -EIO;
1040
1041 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1042 sci_close(dev);
1043 if (result == TOS_FAILURE)
1044 pr_err("ACPI call to set Panel Power ON failed\n");
1045 else if (result == TOS_NOT_SUPPORTED)
1046 return -ENODEV;
1047
1048 return result == TOS_SUCCESS ? 0 : -EIO;
1049 }
1050
1051 /* USB Three */
1052 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1053 {
1054 u32 result;
1055
1056 if (!sci_open(dev))
1057 return -EIO;
1058
1059 result = sci_read(dev, SCI_USB_THREE, state);
1060 sci_close(dev);
1061 if (result == TOS_FAILURE)
1062 pr_err("ACPI call to get USB 3 failed\n");
1063 else if (result == TOS_NOT_SUPPORTED)
1064 return -ENODEV;
1065
1066 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1067 }
1068
1069 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1070 {
1071 u32 result;
1072
1073 if (!sci_open(dev))
1074 return -EIO;
1075
1076 result = sci_write(dev, SCI_USB_THREE, state);
1077 sci_close(dev);
1078 if (result == TOS_FAILURE)
1079 pr_err("ACPI call to set USB 3 failed\n");
1080 else if (result == TOS_NOT_SUPPORTED)
1081 return -ENODEV;
1082
1083 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1084 }
1085
1086 /* Hotkey Event type */
1087 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1088 u32 *type)
1089 {
1090 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1091 u32 out[TCI_WORDS];
1092 acpi_status status;
1093
1094 status = tci_raw(dev, in, out);
1095 if (ACPI_FAILURE(status)) {
1096 pr_err("ACPI call to get System type failed\n");
1097 } else if (out[0] == TOS_NOT_SUPPORTED) {
1098 return -ENODEV;
1099 } else if (out[0] == TOS_SUCCESS) {
1100 *type = out[3];
1101 return 0;
1102 }
1103
1104 return -EIO;
1105 }
1106
1107 /* Wireless status (RFKill, WLAN, BT, WWAN) */
1108 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1109 {
1110 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1111 u32 out[TCI_WORDS];
1112 acpi_status status;
1113
1114 in[3] = HCI_WIRELESS_STATUS;
1115 status = tci_raw(dev, in, out);
1116
1117 if (ACPI_FAILURE(status)) {
1118 pr_err("ACPI call to get Wireless status failed\n");
1119 return -EIO;
1120 }
1121
1122 if (out[0] == TOS_NOT_SUPPORTED)
1123 return -ENODEV;
1124
1125 if (out[0] != TOS_SUCCESS)
1126 return -EIO;
1127
1128 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1129
1130 return 0;
1131 }
1132
1133 /* WWAN */
1134 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1135 {
1136 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1137 u32 out[TCI_WORDS];
1138 acpi_status status;
1139
1140 dev->wwan_supported = 0;
1141
1142 /*
1143 * WWAN support can be queried by setting the in[3] value to
1144 * HCI_WIRELESS_WWAN (0x03).
1145 *
1146 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1147 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1148 *
1149 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1150 * or TOS_NOT_SUPPORTED (0x8000).
1151 */
1152 in[3] = HCI_WIRELESS_WWAN;
1153 status = tci_raw(dev, in, out);
1154
1155 if (ACPI_FAILURE(status)) {
1156 pr_err("ACPI call to get WWAN status failed\n");
1157 return;
1158 }
1159
1160 if (out[0] != TOS_SUCCESS)
1161 return;
1162
1163 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1164 }
1165
1166 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1167 {
1168 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1169 u32 out[TCI_WORDS];
1170 acpi_status status;
1171
1172 in[3] = HCI_WIRELESS_WWAN_STATUS;
1173 status = tci_raw(dev, in, out);
1174
1175 if (ACPI_FAILURE(status)) {
1176 pr_err("ACPI call to set WWAN status failed\n");
1177 return -EIO;
1178 }
1179
1180 if (out[0] == TOS_NOT_SUPPORTED)
1181 return -ENODEV;
1182
1183 if (out[0] != TOS_SUCCESS)
1184 return -EIO;
1185
1186 /*
1187 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1188 * (de)activate the device, but some others need the
1189 * HCI_WIRELESS_WWAN_POWER call as well.
1190 */
1191 in[3] = HCI_WIRELESS_WWAN_POWER;
1192 status = tci_raw(dev, in, out);
1193
1194 if (ACPI_FAILURE(status)) {
1195 pr_err("ACPI call to set WWAN power failed\n");
1196 return -EIO;
1197 }
1198
1199 if (out[0] == TOS_NOT_SUPPORTED)
1200 return -ENODEV;
1201
1202 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1203 }
1204
1205 /* Cooling Method */
1206 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1207 {
1208 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1209 u32 out[TCI_WORDS];
1210 acpi_status status;
1211
1212 dev->cooling_method_supported = 0;
1213 dev->max_cooling_method = 0;
1214
1215 status = tci_raw(dev, in, out);
1216 if (ACPI_FAILURE(status))
1217 pr_err("ACPI call to get Cooling Method failed\n");
1218
1219 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1220 return;
1221
1222 dev->cooling_method_supported = 1;
1223 dev->max_cooling_method = out[3];
1224 }
1225
1226 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1227 {
1228 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1229
1230 if (result == TOS_FAILURE)
1231 pr_err("ACPI call to get Cooling Method failed\n");
1232
1233 if (result == TOS_NOT_SUPPORTED)
1234 return -ENODEV;
1235
1236 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1237 }
1238
1239 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1240 {
1241 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1242
1243 if (result == TOS_FAILURE)
1244 pr_err("ACPI call to get Cooling Method failed\n");
1245
1246 if (result == TOS_NOT_SUPPORTED)
1247 return -ENODEV;
1248
1249 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1250 }
1251
1252 /* Transflective Backlight */
1253 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1254 {
1255 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1256
1257 if (result == TOS_FAILURE)
1258 pr_err("ACPI call to get Transflective Backlight failed\n");
1259 else if (result == TOS_NOT_SUPPORTED)
1260 return -ENODEV;
1261
1262 return result == TOS_SUCCESS ? 0 : -EIO;
1263 }
1264
1265 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1266 {
1267 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1268
1269 if (result == TOS_FAILURE)
1270 pr_err("ACPI call to set Transflective Backlight failed\n");
1271 else if (result == TOS_NOT_SUPPORTED)
1272 return -ENODEV;
1273
1274 return result == TOS_SUCCESS ? 0 : -EIO;
1275 }
1276
1277 static struct proc_dir_entry *toshiba_proc_dir;
1278
1279 /* LCD Brightness */
1280 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1281 {
1282 u32 result;
1283 u32 value;
1284 int brightness = 0;
1285
1286 if (dev->tr_backlight_supported) {
1287 int ret = get_tr_backlight_status(dev, &value);
1288
1289 if (ret)
1290 return ret;
1291 if (value)
1292 return 0;
1293 brightness++;
1294 }
1295
1296 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1297 if (result == TOS_FAILURE)
1298 pr_err("ACPI call to get LCD Brightness failed\n");
1299 else if (result == TOS_NOT_SUPPORTED)
1300 return -ENODEV;
1301 if (result == TOS_SUCCESS)
1302 return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
1303
1304 return -EIO;
1305 }
1306
1307 static int get_lcd_brightness(struct backlight_device *bd)
1308 {
1309 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1310
1311 return __get_lcd_brightness(dev);
1312 }
1313
1314 static int lcd_proc_show(struct seq_file *m, void *v)
1315 {
1316 struct toshiba_acpi_dev *dev = m->private;
1317 int levels;
1318 int value;
1319
1320 if (!dev->backlight_dev)
1321 return -ENODEV;
1322
1323 levels = dev->backlight_dev->props.max_brightness + 1;
1324 value = get_lcd_brightness(dev->backlight_dev);
1325 if (value >= 0) {
1326 seq_printf(m, "brightness: %d\n", value);
1327 seq_printf(m, "brightness_levels: %d\n", levels);
1328 return 0;
1329 }
1330
1331 pr_err("Error reading LCD brightness\n");
1332
1333 return -EIO;
1334 }
1335
1336 static int lcd_proc_open(struct inode *inode, struct file *file)
1337 {
1338 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1339 }
1340
1341 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1342 {
1343 u32 result;
1344
1345 if (dev->tr_backlight_supported) {
1346 int ret = set_tr_backlight_status(dev, !value);
1347
1348 if (ret)
1349 return ret;
1350 if (value)
1351 value--;
1352 }
1353
1354 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1355 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1356 if (result == TOS_FAILURE)
1357 pr_err("ACPI call to set LCD Brightness failed\n");
1358 else if (result == TOS_NOT_SUPPORTED)
1359 return -ENODEV;
1360
1361 return result == TOS_SUCCESS ? 0 : -EIO;
1362 }
1363
1364 static int set_lcd_status(struct backlight_device *bd)
1365 {
1366 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1367
1368 return set_lcd_brightness(dev, bd->props.brightness);
1369 }
1370
1371 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1372 size_t count, loff_t *pos)
1373 {
1374 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1375 char cmd[42];
1376 size_t len;
1377 int levels = dev->backlight_dev->props.max_brightness + 1;
1378 int value;
1379
1380 len = min(count, sizeof(cmd) - 1);
1381 if (copy_from_user(cmd, buf, len))
1382 return -EFAULT;
1383 cmd[len] = '\0';
1384
1385 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1386 value < 0 && value > levels)
1387 return -EINVAL;
1388
1389 if (set_lcd_brightness(dev, value))
1390 return -EIO;
1391
1392 return count;
1393 }
1394
1395 static const struct file_operations lcd_proc_fops = {
1396 .owner = THIS_MODULE,
1397 .open = lcd_proc_open,
1398 .read = seq_read,
1399 .llseek = seq_lseek,
1400 .release = single_release,
1401 .write = lcd_proc_write,
1402 };
1403
1404 /* Video-Out */
1405 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1406 {
1407 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1408
1409 if (result == TOS_FAILURE)
1410 pr_err("ACPI call to get Video-Out failed\n");
1411 else if (result == TOS_NOT_SUPPORTED)
1412 return -ENODEV;
1413
1414 return result == TOS_SUCCESS ? 0 : -EIO;
1415 }
1416
1417 static int video_proc_show(struct seq_file *m, void *v)
1418 {
1419 struct toshiba_acpi_dev *dev = m->private;
1420 u32 value;
1421
1422 if (!get_video_status(dev, &value)) {
1423 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1424 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1425 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1426
1427 seq_printf(m, "lcd_out: %d\n", is_lcd);
1428 seq_printf(m, "crt_out: %d\n", is_crt);
1429 seq_printf(m, "tv_out: %d\n", is_tv);
1430 return 0;
1431 }
1432
1433 return -EIO;
1434 }
1435
1436 static int video_proc_open(struct inode *inode, struct file *file)
1437 {
1438 return single_open(file, video_proc_show, PDE_DATA(inode));
1439 }
1440
1441 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1442 size_t count, loff_t *pos)
1443 {
1444 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1445 char *buffer;
1446 char *cmd;
1447 int remain = count;
1448 int lcd_out = -1;
1449 int crt_out = -1;
1450 int tv_out = -1;
1451 int value;
1452 int ret;
1453 u32 video_out;
1454
1455 cmd = kmalloc(count + 1, GFP_KERNEL);
1456 if (!cmd)
1457 return -ENOMEM;
1458 if (copy_from_user(cmd, buf, count)) {
1459 kfree(cmd);
1460 return -EFAULT;
1461 }
1462 cmd[count] = '\0';
1463
1464 buffer = cmd;
1465
1466 /*
1467 * Scan expression. Multiple expressions may be delimited with ;
1468 * NOTE: To keep scanning simple, invalid fields are ignored.
1469 */
1470 while (remain) {
1471 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1472 lcd_out = value & 1;
1473 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1474 crt_out = value & 1;
1475 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1476 tv_out = value & 1;
1477 /* Advance to one character past the next ; */
1478 do {
1479 ++buffer;
1480 --remain;
1481 } while (remain && *(buffer - 1) != ';');
1482 }
1483
1484 kfree(cmd);
1485
1486 ret = get_video_status(dev, &video_out);
1487 if (!ret) {
1488 unsigned int new_video_out = video_out;
1489
1490 if (lcd_out != -1)
1491 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1492 if (crt_out != -1)
1493 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1494 if (tv_out != -1)
1495 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1496 /*
1497 * To avoid unnecessary video disruption, only write the new
1498 * video setting if something changed.
1499 */
1500 if (new_video_out != video_out)
1501 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1502 }
1503
1504 return ret ? -EIO : count;
1505 }
1506
1507 static const struct file_operations video_proc_fops = {
1508 .owner = THIS_MODULE,
1509 .open = video_proc_open,
1510 .read = seq_read,
1511 .llseek = seq_lseek,
1512 .release = single_release,
1513 .write = video_proc_write,
1514 };
1515
1516 /* Fan status */
1517 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1518 {
1519 u32 result = hci_read(dev, HCI_FAN, status);
1520
1521 if (result == TOS_FAILURE)
1522 pr_err("ACPI call to get Fan status failed\n");
1523 else if (result == TOS_NOT_SUPPORTED)
1524 return -ENODEV;
1525
1526 return result == TOS_SUCCESS ? 0 : -EIO;
1527 }
1528
1529 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1530 {
1531 u32 result = hci_write(dev, HCI_FAN, status);
1532
1533 if (result == TOS_FAILURE)
1534 pr_err("ACPI call to set Fan status failed\n");
1535 else if (result == TOS_NOT_SUPPORTED)
1536 return -ENODEV;
1537
1538 return result == TOS_SUCCESS ? 0 : -EIO;
1539 }
1540
1541 static int fan_proc_show(struct seq_file *m, void *v)
1542 {
1543 struct toshiba_acpi_dev *dev = m->private;
1544 u32 value;
1545
1546 if (get_fan_status(dev, &value))
1547 return -EIO;
1548
1549 seq_printf(m, "running: %d\n", (value > 0));
1550 seq_printf(m, "force_on: %d\n", dev->force_fan);
1551
1552 return 0;
1553 }
1554
1555 static int fan_proc_open(struct inode *inode, struct file *file)
1556 {
1557 return single_open(file, fan_proc_show, PDE_DATA(inode));
1558 }
1559
1560 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1561 size_t count, loff_t *pos)
1562 {
1563 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1564 char cmd[42];
1565 size_t len;
1566 int value;
1567
1568 len = min(count, sizeof(cmd) - 1);
1569 if (copy_from_user(cmd, buf, len))
1570 return -EFAULT;
1571 cmd[len] = '\0';
1572
1573 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1574 value != 0 && value != 1)
1575 return -EINVAL;
1576
1577 if (set_fan_status(dev, value))
1578 return -EIO;
1579
1580 dev->force_fan = value;
1581
1582 return count;
1583 }
1584
1585 static const struct file_operations fan_proc_fops = {
1586 .owner = THIS_MODULE,
1587 .open = fan_proc_open,
1588 .read = seq_read,
1589 .llseek = seq_lseek,
1590 .release = single_release,
1591 .write = fan_proc_write,
1592 };
1593
1594 static int keys_proc_show(struct seq_file *m, void *v)
1595 {
1596 struct toshiba_acpi_dev *dev = m->private;
1597
1598 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1599 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1600
1601 return 0;
1602 }
1603
1604 static int keys_proc_open(struct inode *inode, struct file *file)
1605 {
1606 return single_open(file, keys_proc_show, PDE_DATA(inode));
1607 }
1608
1609 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1610 size_t count, loff_t *pos)
1611 {
1612 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1613 char cmd[42];
1614 size_t len;
1615 int value;
1616
1617 len = min(count, sizeof(cmd) - 1);
1618 if (copy_from_user(cmd, buf, len))
1619 return -EFAULT;
1620 cmd[len] = '\0';
1621
1622 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1623 dev->key_event_valid = 0;
1624 else
1625 return -EINVAL;
1626
1627 return count;
1628 }
1629
1630 static const struct file_operations keys_proc_fops = {
1631 .owner = THIS_MODULE,
1632 .open = keys_proc_open,
1633 .read = seq_read,
1634 .llseek = seq_lseek,
1635 .release = single_release,
1636 .write = keys_proc_write,
1637 };
1638
1639 static int version_proc_show(struct seq_file *m, void *v)
1640 {
1641 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1642 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1643 return 0;
1644 }
1645
1646 static int version_proc_open(struct inode *inode, struct file *file)
1647 {
1648 return single_open(file, version_proc_show, PDE_DATA(inode));
1649 }
1650
1651 static const struct file_operations version_proc_fops = {
1652 .owner = THIS_MODULE,
1653 .open = version_proc_open,
1654 .read = seq_read,
1655 .llseek = seq_lseek,
1656 .release = single_release,
1657 };
1658
1659 /*
1660 * Proc and module init
1661 */
1662
1663 #define PROC_TOSHIBA "toshiba"
1664
1665 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1666 {
1667 if (dev->backlight_dev)
1668 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1669 &lcd_proc_fops, dev);
1670 if (dev->video_supported)
1671 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1672 &video_proc_fops, dev);
1673 if (dev->fan_supported)
1674 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1675 &fan_proc_fops, dev);
1676 if (dev->hotkey_dev)
1677 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1678 &keys_proc_fops, dev);
1679 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1680 &version_proc_fops, dev);
1681 }
1682
1683 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1684 {
1685 if (dev->backlight_dev)
1686 remove_proc_entry("lcd", toshiba_proc_dir);
1687 if (dev->video_supported)
1688 remove_proc_entry("video", toshiba_proc_dir);
1689 if (dev->fan_supported)
1690 remove_proc_entry("fan", toshiba_proc_dir);
1691 if (dev->hotkey_dev)
1692 remove_proc_entry("keys", toshiba_proc_dir);
1693 remove_proc_entry("version", toshiba_proc_dir);
1694 }
1695
1696 static const struct backlight_ops toshiba_backlight_data = {
1697 .options = BL_CORE_SUSPENDRESUME,
1698 .get_brightness = get_lcd_brightness,
1699 .update_status = set_lcd_status,
1700 };
1701
1702 /* Keyboard backlight work */
1703 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1704
1705 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1706
1707 /*
1708 * Sysfs files
1709 */
1710 static ssize_t version_show(struct device *dev,
1711 struct device_attribute *attr, char *buf)
1712 {
1713 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1714 }
1715 static DEVICE_ATTR_RO(version);
1716
1717 static ssize_t fan_store(struct device *dev,
1718 struct device_attribute *attr,
1719 const char *buf, size_t count)
1720 {
1721 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1722 int state;
1723 int ret;
1724
1725 ret = kstrtoint(buf, 0, &state);
1726 if (ret)
1727 return ret;
1728
1729 if (state != 0 && state != 1)
1730 return -EINVAL;
1731
1732 ret = set_fan_status(toshiba, state);
1733 if (ret)
1734 return ret;
1735
1736 return count;
1737 }
1738
1739 static ssize_t fan_show(struct device *dev,
1740 struct device_attribute *attr, char *buf)
1741 {
1742 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1743 u32 value;
1744 int ret;
1745
1746 ret = get_fan_status(toshiba, &value);
1747 if (ret)
1748 return ret;
1749
1750 return sprintf(buf, "%d\n", value);
1751 }
1752 static DEVICE_ATTR_RW(fan);
1753
1754 static ssize_t kbd_backlight_mode_store(struct device *dev,
1755 struct device_attribute *attr,
1756 const char *buf, size_t count)
1757 {
1758 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1759 int mode;
1760 int ret;
1761
1762
1763 ret = kstrtoint(buf, 0, &mode);
1764 if (ret)
1765 return ret;
1766
1767 /* Check for supported modes depending on keyboard backlight type */
1768 if (toshiba->kbd_type == 1) {
1769 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1770 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1771 return -EINVAL;
1772 } else if (toshiba->kbd_type == 2) {
1773 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1774 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1775 mode != SCI_KBD_MODE_OFF)
1776 return -EINVAL;
1777 }
1778
1779 /*
1780 * Set the Keyboard Backlight Mode where:
1781 * Auto - KBD backlight turns off automatically in given time
1782 * FN-Z - KBD backlight "toggles" when hotkey pressed
1783 * ON - KBD backlight is always on
1784 * OFF - KBD backlight is always off
1785 */
1786
1787 /* Only make a change if the actual mode has changed */
1788 if (toshiba->kbd_mode != mode) {
1789 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1790 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1791
1792 /* OR the "base time" to the actual method format */
1793 if (toshiba->kbd_type == 1) {
1794 /* Type 1 requires the current mode */
1795 time |= toshiba->kbd_mode;
1796 } else if (toshiba->kbd_type == 2) {
1797 /* Type 2 requires the desired mode */
1798 time |= mode;
1799 }
1800
1801 ret = toshiba_kbd_illum_status_set(toshiba, time);
1802 if (ret)
1803 return ret;
1804
1805 toshiba->kbd_mode = mode;
1806
1807 /*
1808 * Some laptop models with the second generation backlit
1809 * keyboard (type 2) do not generate the keyboard backlight
1810 * changed event (0x92), and thus, the driver will never update
1811 * the sysfs entries.
1812 *
1813 * The event is generated right when changing the keyboard
1814 * backlight mode and the *notify function will set the
1815 * kbd_event_generated to true.
1816 *
1817 * In case the event is not generated, schedule the keyboard
1818 * backlight work to update the sysfs entries and emulate the
1819 * event via genetlink.
1820 */
1821 if (toshiba->kbd_type == 2 &&
1822 !toshiba_acpi->kbd_event_generated)
1823 schedule_work(&kbd_bl_work);
1824 }
1825
1826 return count;
1827 }
1828
1829 static ssize_t kbd_backlight_mode_show(struct device *dev,
1830 struct device_attribute *attr,
1831 char *buf)
1832 {
1833 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1834 u32 time;
1835
1836 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1837 return -EIO;
1838
1839 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1840 }
1841 static DEVICE_ATTR_RW(kbd_backlight_mode);
1842
1843 static ssize_t kbd_type_show(struct device *dev,
1844 struct device_attribute *attr, char *buf)
1845 {
1846 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1847
1848 return sprintf(buf, "%d\n", toshiba->kbd_type);
1849 }
1850 static DEVICE_ATTR_RO(kbd_type);
1851
1852 static ssize_t available_kbd_modes_show(struct device *dev,
1853 struct device_attribute *attr,
1854 char *buf)
1855 {
1856 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1857
1858 if (toshiba->kbd_type == 1)
1859 return sprintf(buf, "0x%x 0x%x\n",
1860 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1861
1862 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1863 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1864 }
1865 static DEVICE_ATTR_RO(available_kbd_modes);
1866
1867 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1868 struct device_attribute *attr,
1869 const char *buf, size_t count)
1870 {
1871 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1872 int time;
1873 int ret;
1874
1875 ret = kstrtoint(buf, 0, &time);
1876 if (ret)
1877 return ret;
1878
1879 /* Check for supported values depending on kbd_type */
1880 if (toshiba->kbd_type == 1) {
1881 if (time < 0 || time > 60)
1882 return -EINVAL;
1883 } else if (toshiba->kbd_type == 2) {
1884 if (time < 1 || time > 60)
1885 return -EINVAL;
1886 }
1887
1888 /* Set the Keyboard Backlight Timeout */
1889
1890 /* Only make a change if the actual timeout has changed */
1891 if (toshiba->kbd_time != time) {
1892 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1893 time = time << HCI_MISC_SHIFT;
1894 /* OR the "base time" to the actual method format */
1895 if (toshiba->kbd_type == 1)
1896 time |= SCI_KBD_MODE_FNZ;
1897 else if (toshiba->kbd_type == 2)
1898 time |= SCI_KBD_MODE_AUTO;
1899
1900 ret = toshiba_kbd_illum_status_set(toshiba, time);
1901 if (ret)
1902 return ret;
1903
1904 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1905 }
1906
1907 return count;
1908 }
1909
1910 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1911 struct device_attribute *attr,
1912 char *buf)
1913 {
1914 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1915 u32 time;
1916
1917 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1918 return -EIO;
1919
1920 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1921 }
1922 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1923
1924 static ssize_t touchpad_store(struct device *dev,
1925 struct device_attribute *attr,
1926 const char *buf, size_t count)
1927 {
1928 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1929 int state;
1930 int ret;
1931
1932 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1933 ret = kstrtoint(buf, 0, &state);
1934 if (ret)
1935 return ret;
1936 if (state != 0 && state != 1)
1937 return -EINVAL;
1938
1939 ret = toshiba_touchpad_set(toshiba, state);
1940 if (ret)
1941 return ret;
1942
1943 return count;
1944 }
1945
1946 static ssize_t touchpad_show(struct device *dev,
1947 struct device_attribute *attr, char *buf)
1948 {
1949 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1950 u32 state;
1951 int ret;
1952
1953 ret = toshiba_touchpad_get(toshiba, &state);
1954 if (ret < 0)
1955 return ret;
1956
1957 return sprintf(buf, "%i\n", state);
1958 }
1959 static DEVICE_ATTR_RW(touchpad);
1960
1961 static ssize_t position_show(struct device *dev,
1962 struct device_attribute *attr, char *buf)
1963 {
1964 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1965 u32 xyval, zval, tmp;
1966 u16 x, y, z;
1967 int ret;
1968
1969 xyval = zval = 0;
1970 ret = toshiba_accelerometer_get(toshiba, &xyval, &zval);
1971 if (ret < 0)
1972 return ret;
1973
1974 x = xyval & HCI_ACCEL_MASK;
1975 tmp = xyval >> HCI_MISC_SHIFT;
1976 y = tmp & HCI_ACCEL_MASK;
1977 z = zval & HCI_ACCEL_MASK;
1978
1979 return sprintf(buf, "%d %d %d\n", x, y, z);
1980 }
1981 static DEVICE_ATTR_RO(position);
1982
1983 static ssize_t usb_sleep_charge_show(struct device *dev,
1984 struct device_attribute *attr, char *buf)
1985 {
1986 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1987 u32 mode;
1988 int ret;
1989
1990 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
1991 if (ret < 0)
1992 return ret;
1993
1994 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
1995 }
1996
1997 static ssize_t usb_sleep_charge_store(struct device *dev,
1998 struct device_attribute *attr,
1999 const char *buf, size_t count)
2000 {
2001 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2002 u32 mode;
2003 int state;
2004 int ret;
2005
2006 ret = kstrtoint(buf, 0, &state);
2007 if (ret)
2008 return ret;
2009 /*
2010 * Check for supported values, where:
2011 * 0 - Disabled
2012 * 1 - Alternate (Non USB conformant devices that require more power)
2013 * 2 - Auto (USB conformant devices)
2014 * 3 - Typical
2015 */
2016 if (state != 0 && state != 1 && state != 2 && state != 3)
2017 return -EINVAL;
2018
2019 /* Set the USB charging mode to internal value */
2020 mode = toshiba->usbsc_mode_base;
2021 if (state == 0)
2022 mode |= SCI_USB_CHARGE_DISABLED;
2023 else if (state == 1)
2024 mode |= SCI_USB_CHARGE_ALTERNATE;
2025 else if (state == 2)
2026 mode |= SCI_USB_CHARGE_AUTO;
2027 else if (state == 3)
2028 mode |= SCI_USB_CHARGE_TYPICAL;
2029
2030 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2031 if (ret)
2032 return ret;
2033
2034 return count;
2035 }
2036 static DEVICE_ATTR_RW(usb_sleep_charge);
2037
2038 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2039 struct device_attribute *attr,
2040 char *buf)
2041 {
2042 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2043 u32 state;
2044 int bat_lvl;
2045 int status;
2046 int ret;
2047 int tmp;
2048
2049 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2050 if (ret < 0)
2051 return ret;
2052
2053 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2054 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2055 status = (tmp == 0x4) ? 1 : 0;
2056 /* Determine the battery level set */
2057 bat_lvl = state >> HCI_MISC_SHIFT;
2058
2059 return sprintf(buf, "%d %d\n", status, bat_lvl);
2060 }
2061
2062 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2063 struct device_attribute *attr,
2064 const char *buf, size_t count)
2065 {
2066 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2067 u32 status;
2068 int value;
2069 int ret;
2070 int tmp;
2071
2072 ret = kstrtoint(buf, 0, &value);
2073 if (ret)
2074 return ret;
2075
2076 /*
2077 * Set the status of the function:
2078 * 0 - Disabled
2079 * 1-100 - Enabled
2080 */
2081 if (value < 0 || value > 100)
2082 return -EINVAL;
2083
2084 if (value == 0) {
2085 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2086 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2087 } else {
2088 tmp = value << HCI_MISC_SHIFT;
2089 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2090 }
2091 ret = toshiba_sleep_functions_status_set(toshiba, status);
2092 if (ret < 0)
2093 return ret;
2094
2095 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2096
2097 return count;
2098 }
2099 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2100
2101 static ssize_t usb_rapid_charge_show(struct device *dev,
2102 struct device_attribute *attr, char *buf)
2103 {
2104 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2105 u32 state;
2106 int ret;
2107
2108 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2109 if (ret < 0)
2110 return ret;
2111
2112 return sprintf(buf, "%d\n", state);
2113 }
2114
2115 static ssize_t usb_rapid_charge_store(struct device *dev,
2116 struct device_attribute *attr,
2117 const char *buf, size_t count)
2118 {
2119 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2120 int state;
2121 int ret;
2122
2123 ret = kstrtoint(buf, 0, &state);
2124 if (ret)
2125 return ret;
2126 if (state != 0 && state != 1)
2127 return -EINVAL;
2128
2129 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2130 if (ret)
2131 return ret;
2132
2133 return count;
2134 }
2135 static DEVICE_ATTR_RW(usb_rapid_charge);
2136
2137 static ssize_t usb_sleep_music_show(struct device *dev,
2138 struct device_attribute *attr, char *buf)
2139 {
2140 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2141 u32 state;
2142 int ret;
2143
2144 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2145 if (ret < 0)
2146 return ret;
2147
2148 return sprintf(buf, "%d\n", state);
2149 }
2150
2151 static ssize_t usb_sleep_music_store(struct device *dev,
2152 struct device_attribute *attr,
2153 const char *buf, size_t count)
2154 {
2155 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2156 int state;
2157 int ret;
2158
2159 ret = kstrtoint(buf, 0, &state);
2160 if (ret)
2161 return ret;
2162 if (state != 0 && state != 1)
2163 return -EINVAL;
2164
2165 ret = toshiba_usb_sleep_music_set(toshiba, state);
2166 if (ret)
2167 return ret;
2168
2169 return count;
2170 }
2171 static DEVICE_ATTR_RW(usb_sleep_music);
2172
2173 static ssize_t kbd_function_keys_show(struct device *dev,
2174 struct device_attribute *attr, char *buf)
2175 {
2176 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2177 int mode;
2178 int ret;
2179
2180 ret = toshiba_function_keys_get(toshiba, &mode);
2181 if (ret < 0)
2182 return ret;
2183
2184 return sprintf(buf, "%d\n", mode);
2185 }
2186
2187 static ssize_t kbd_function_keys_store(struct device *dev,
2188 struct device_attribute *attr,
2189 const char *buf, size_t count)
2190 {
2191 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2192 int mode;
2193 int ret;
2194
2195 ret = kstrtoint(buf, 0, &mode);
2196 if (ret)
2197 return ret;
2198 /*
2199 * Check for the function keys mode where:
2200 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2201 * 1 - Special functions (Opposite of the above setting)
2202 */
2203 if (mode != 0 && mode != 1)
2204 return -EINVAL;
2205
2206 ret = toshiba_function_keys_set(toshiba, mode);
2207 if (ret)
2208 return ret;
2209
2210 pr_info("Reboot for changes to KBD Function Keys to take effect");
2211
2212 return count;
2213 }
2214 static DEVICE_ATTR_RW(kbd_function_keys);
2215
2216 static ssize_t panel_power_on_show(struct device *dev,
2217 struct device_attribute *attr, char *buf)
2218 {
2219 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2220 u32 state;
2221 int ret;
2222
2223 ret = toshiba_panel_power_on_get(toshiba, &state);
2224 if (ret < 0)
2225 return ret;
2226
2227 return sprintf(buf, "%d\n", state);
2228 }
2229
2230 static ssize_t panel_power_on_store(struct device *dev,
2231 struct device_attribute *attr,
2232 const char *buf, size_t count)
2233 {
2234 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2235 int state;
2236 int ret;
2237
2238 ret = kstrtoint(buf, 0, &state);
2239 if (ret)
2240 return ret;
2241 if (state != 0 && state != 1)
2242 return -EINVAL;
2243
2244 ret = toshiba_panel_power_on_set(toshiba, state);
2245 if (ret)
2246 return ret;
2247
2248 pr_info("Reboot for changes to Panel Power ON to take effect");
2249
2250 return count;
2251 }
2252 static DEVICE_ATTR_RW(panel_power_on);
2253
2254 static ssize_t usb_three_show(struct device *dev,
2255 struct device_attribute *attr, char *buf)
2256 {
2257 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2258 u32 state;
2259 int ret;
2260
2261 ret = toshiba_usb_three_get(toshiba, &state);
2262 if (ret < 0)
2263 return ret;
2264
2265 return sprintf(buf, "%d\n", state);
2266 }
2267
2268 static ssize_t usb_three_store(struct device *dev,
2269 struct device_attribute *attr,
2270 const char *buf, size_t count)
2271 {
2272 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2273 int state;
2274 int ret;
2275
2276 ret = kstrtoint(buf, 0, &state);
2277 if (ret)
2278 return ret;
2279 /*
2280 * Check for USB 3 mode where:
2281 * 0 - Disabled (Acts like a USB 2 port, saving power)
2282 * 1 - Enabled
2283 */
2284 if (state != 0 && state != 1)
2285 return -EINVAL;
2286
2287 ret = toshiba_usb_three_set(toshiba, state);
2288 if (ret)
2289 return ret;
2290
2291 pr_info("Reboot for changes to USB 3 to take effect");
2292
2293 return count;
2294 }
2295 static DEVICE_ATTR_RW(usb_three);
2296
2297 static ssize_t cooling_method_show(struct device *dev,
2298 struct device_attribute *attr, char *buf)
2299 {
2300 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2301 int state;
2302 int ret;
2303
2304 ret = toshiba_cooling_method_get(toshiba, &state);
2305 if (ret < 0)
2306 return ret;
2307
2308 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2309 }
2310
2311 static ssize_t cooling_method_store(struct device *dev,
2312 struct device_attribute *attr,
2313 const char *buf, size_t count)
2314 {
2315 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2316 int state;
2317 int ret;
2318
2319 ret = kstrtoint(buf, 0, &state);
2320 if (ret)
2321 return ret;
2322
2323 /*
2324 * Check for supported values
2325 * Depending on the laptop model, some only support these two:
2326 * 0 - Maximum Performance
2327 * 1 - Battery Optimized
2328 *
2329 * While some others support all three methods:
2330 * 0 - Maximum Performance
2331 * 1 - Performance
2332 * 2 - Battery Optimized
2333 */
2334 if (state < 0 || state > toshiba->max_cooling_method)
2335 return -EINVAL;
2336
2337 ret = toshiba_cooling_method_set(toshiba, state);
2338 if (ret)
2339 return ret;
2340
2341 return count;
2342 }
2343 static DEVICE_ATTR_RW(cooling_method);
2344
2345 static struct attribute *toshiba_attributes[] = {
2346 &dev_attr_version.attr,
2347 &dev_attr_fan.attr,
2348 &dev_attr_kbd_backlight_mode.attr,
2349 &dev_attr_kbd_type.attr,
2350 &dev_attr_available_kbd_modes.attr,
2351 &dev_attr_kbd_backlight_timeout.attr,
2352 &dev_attr_touchpad.attr,
2353 &dev_attr_position.attr,
2354 &dev_attr_usb_sleep_charge.attr,
2355 &dev_attr_sleep_functions_on_battery.attr,
2356 &dev_attr_usb_rapid_charge.attr,
2357 &dev_attr_usb_sleep_music.attr,
2358 &dev_attr_kbd_function_keys.attr,
2359 &dev_attr_panel_power_on.attr,
2360 &dev_attr_usb_three.attr,
2361 &dev_attr_cooling_method.attr,
2362 NULL,
2363 };
2364
2365 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2366 struct attribute *attr, int idx)
2367 {
2368 struct device *dev = container_of(kobj, struct device, kobj);
2369 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2370 bool exists = true;
2371
2372 if (attr == &dev_attr_fan.attr)
2373 exists = (drv->fan_supported) ? true : false;
2374 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2375 exists = (drv->kbd_illum_supported) ? true : false;
2376 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2377 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2378 else if (attr == &dev_attr_touchpad.attr)
2379 exists = (drv->touchpad_supported) ? true : false;
2380 else if (attr == &dev_attr_position.attr)
2381 exists = (drv->accelerometer_supported) ? true : false;
2382 else if (attr == &dev_attr_usb_sleep_charge.attr)
2383 exists = (drv->usb_sleep_charge_supported) ? true : false;
2384 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2385 exists = (drv->usb_sleep_charge_supported) ? true : false;
2386 else if (attr == &dev_attr_usb_rapid_charge.attr)
2387 exists = (drv->usb_rapid_charge_supported) ? true : false;
2388 else if (attr == &dev_attr_usb_sleep_music.attr)
2389 exists = (drv->usb_sleep_music_supported) ? true : false;
2390 else if (attr == &dev_attr_kbd_function_keys.attr)
2391 exists = (drv->kbd_function_keys_supported) ? true : false;
2392 else if (attr == &dev_attr_panel_power_on.attr)
2393 exists = (drv->panel_power_on_supported) ? true : false;
2394 else if (attr == &dev_attr_usb_three.attr)
2395 exists = (drv->usb_three_supported) ? true : false;
2396 else if (attr == &dev_attr_cooling_method.attr)
2397 exists = (drv->cooling_method_supported) ? true : false;
2398
2399 return exists ? attr->mode : 0;
2400 }
2401
2402 static struct attribute_group toshiba_attr_group = {
2403 .is_visible = toshiba_sysfs_is_visible,
2404 .attrs = toshiba_attributes,
2405 };
2406
2407 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2408 {
2409 struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2410
2411 /* Update the sysfs entries */
2412 if (sysfs_update_group(&acpi_dev->dev.kobj,
2413 &toshiba_attr_group))
2414 pr_err("Unable to update sysfs entries\n");
2415
2416 /* Emulate the keyboard backlight event */
2417 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2418 dev_name(&acpi_dev->dev),
2419 0x92, 0);
2420 }
2421
2422 /*
2423 * Misc device
2424 */
2425 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2426 {
2427 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2428 regs->edx, regs->esi, regs->edi };
2429 u32 out[TCI_WORDS];
2430 acpi_status status;
2431
2432 status = tci_raw(toshiba_acpi, in, out);
2433 if (ACPI_FAILURE(status)) {
2434 pr_err("ACPI call to query SMM registers failed\n");
2435 return -EIO;
2436 }
2437
2438 /* Fillout the SMM struct with the TCI call results */
2439 regs->eax = out[0];
2440 regs->ebx = out[1];
2441 regs->ecx = out[2];
2442 regs->edx = out[3];
2443 regs->esi = out[4];
2444 regs->edi = out[5];
2445
2446 return 0;
2447 }
2448
2449 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2450 unsigned long arg)
2451 {
2452 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2453 SMMRegisters regs;
2454 int ret;
2455
2456 if (!argp)
2457 return -EINVAL;
2458
2459 switch (cmd) {
2460 case TOSH_SMM:
2461 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2462 return -EFAULT;
2463 ret = toshiba_acpi_smm_bridge(&regs);
2464 if (ret)
2465 return ret;
2466 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2467 return -EFAULT;
2468 break;
2469 case TOSHIBA_ACPI_SCI:
2470 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2471 return -EFAULT;
2472 /* Ensure we are being called with a SCI_{GET, SET} register */
2473 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2474 return -EINVAL;
2475 if (!sci_open(toshiba_acpi))
2476 return -EIO;
2477 ret = toshiba_acpi_smm_bridge(&regs);
2478 sci_close(toshiba_acpi);
2479 if (ret)
2480 return ret;
2481 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2482 return -EFAULT;
2483 break;
2484 default:
2485 return -EINVAL;
2486 }
2487
2488 return 0;
2489 }
2490
2491 static const struct file_operations toshiba_acpi_fops = {
2492 .owner = THIS_MODULE,
2493 .unlocked_ioctl = toshiba_acpi_ioctl,
2494 .llseek = noop_llseek,
2495 };
2496
2497 /*
2498 * WWAN RFKill handlers
2499 */
2500 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2501 {
2502 struct toshiba_acpi_dev *dev = data;
2503 int ret;
2504
2505 ret = toshiba_wireless_status(dev);
2506 if (ret)
2507 return ret;
2508
2509 if (!dev->killswitch)
2510 return 0;
2511
2512 return toshiba_wwan_set(dev, !blocked);
2513 }
2514
2515 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2516 {
2517 struct toshiba_acpi_dev *dev = data;
2518
2519 if (toshiba_wireless_status(dev))
2520 return;
2521
2522 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2523 }
2524
2525 static const struct rfkill_ops wwan_rfk_ops = {
2526 .set_block = toshiba_acpi_wwan_set_block,
2527 .poll = toshiba_acpi_wwan_poll,
2528 };
2529
2530 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2531 {
2532 int ret = toshiba_wireless_status(dev);
2533
2534 if (ret)
2535 return ret;
2536
2537 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2538 &dev->acpi_dev->dev,
2539 RFKILL_TYPE_WWAN,
2540 &wwan_rfk_ops,
2541 dev);
2542 if (!dev->wwan_rfk) {
2543 pr_err("Unable to allocate WWAN rfkill device\n");
2544 return -ENOMEM;
2545 }
2546
2547 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2548
2549 ret = rfkill_register(dev->wwan_rfk);
2550 if (ret) {
2551 pr_err("Unable to register WWAN rfkill device\n");
2552 rfkill_destroy(dev->wwan_rfk);
2553 }
2554
2555 return ret;
2556 }
2557
2558 /*
2559 * Hotkeys
2560 */
2561 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2562 {
2563 acpi_status status;
2564 u32 result;
2565
2566 status = acpi_evaluate_object(dev->acpi_dev->handle,
2567 "ENAB", NULL, NULL);
2568 if (ACPI_FAILURE(status))
2569 return -ENODEV;
2570
2571 /*
2572 * Enable the "Special Functions" mode only if they are
2573 * supported and if they are activated.
2574 */
2575 if (dev->kbd_function_keys_supported && dev->special_functions)
2576 result = hci_write(dev, HCI_HOTKEY_EVENT,
2577 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2578 else
2579 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2580
2581 if (result == TOS_FAILURE)
2582 return -EIO;
2583 else if (result == TOS_NOT_SUPPORTED)
2584 return -ENODEV;
2585
2586 return 0;
2587 }
2588
2589 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2590 struct serio *port)
2591 {
2592 if (str & I8042_STR_AUXDATA)
2593 return false;
2594
2595 if (unlikely(data == 0xe0))
2596 return false;
2597
2598 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2599 schedule_work(&toshiba_acpi->hotkey_work);
2600 return true;
2601 }
2602
2603 return false;
2604 }
2605
2606 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2607 {
2608 acpi_handle ec_handle = ec_get_handle();
2609 acpi_status status;
2610
2611 if (!ec_handle)
2612 return;
2613
2614 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2615 if (ACPI_FAILURE(status))
2616 pr_err("ACPI NTFY method execution failed\n");
2617 }
2618
2619 /*
2620 * Returns hotkey scancode, or < 0 on failure.
2621 */
2622 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2623 {
2624 unsigned long long value;
2625 acpi_status status;
2626
2627 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2628 NULL, &value);
2629 if (ACPI_FAILURE(status)) {
2630 pr_err("ACPI INFO method execution failed\n");
2631 return -EIO;
2632 }
2633
2634 return value;
2635 }
2636
2637 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2638 int scancode)
2639 {
2640 if (scancode == 0x100)
2641 return;
2642
2643 /* Act on key press; ignore key release */
2644 if (scancode & 0x80)
2645 return;
2646
2647 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2648 pr_info("Unknown key %x\n", scancode);
2649 }
2650
2651 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2652 {
2653 if (dev->info_supported) {
2654 int scancode = toshiba_acpi_query_hotkey(dev);
2655
2656 if (scancode < 0) {
2657 pr_err("Failed to query hotkey event\n");
2658 } else if (scancode != 0) {
2659 toshiba_acpi_report_hotkey(dev, scancode);
2660 dev->key_event_valid = 1;
2661 dev->last_key_event = scancode;
2662 }
2663 } else if (dev->system_event_supported) {
2664 u32 result;
2665 u32 value;
2666 int retries = 3;
2667
2668 do {
2669 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2670 switch (result) {
2671 case TOS_SUCCESS:
2672 toshiba_acpi_report_hotkey(dev, (int)value);
2673 dev->key_event_valid = 1;
2674 dev->last_key_event = value;
2675 break;
2676 case TOS_NOT_SUPPORTED:
2677 /*
2678 * This is a workaround for an unresolved
2679 * issue on some machines where system events
2680 * sporadically become disabled.
2681 */
2682 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2683 if (result == TOS_SUCCESS)
2684 pr_notice("Re-enabled hotkeys\n");
2685 /* Fall through */
2686 default:
2687 retries--;
2688 break;
2689 }
2690 } while (retries && result != TOS_FIFO_EMPTY);
2691 }
2692 }
2693
2694 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2695 {
2696 const struct key_entry *keymap = toshiba_acpi_keymap;
2697 acpi_handle ec_handle;
2698 int error;
2699
2700 if (disable_hotkeys) {
2701 pr_info("Hotkeys disabled by module parameter\n");
2702 return 0;
2703 }
2704
2705 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2706 pr_info("WMI event detected, hotkeys will not be monitored\n");
2707 return 0;
2708 }
2709
2710 error = toshiba_acpi_enable_hotkeys(dev);
2711 if (error)
2712 return error;
2713
2714 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2715 pr_notice("Unable to query Hotkey Event Type\n");
2716
2717 dev->hotkey_dev = input_allocate_device();
2718 if (!dev->hotkey_dev)
2719 return -ENOMEM;
2720
2721 dev->hotkey_dev->name = "Toshiba input device";
2722 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2723 dev->hotkey_dev->id.bustype = BUS_HOST;
2724
2725 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2726 !dev->kbd_function_keys_supported)
2727 keymap = toshiba_acpi_keymap;
2728 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2729 dev->kbd_function_keys_supported)
2730 keymap = toshiba_acpi_alt_keymap;
2731 else
2732 pr_info("Unknown event type received %x\n",
2733 dev->hotkey_event_type);
2734 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2735 if (error)
2736 goto err_free_dev;
2737
2738 /*
2739 * For some machines the SCI responsible for providing hotkey
2740 * notification doesn't fire. We can trigger the notification
2741 * whenever the Fn key is pressed using the NTFY method, if
2742 * supported, so if it's present set up an i8042 key filter
2743 * for this purpose.
2744 */
2745 ec_handle = ec_get_handle();
2746 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2747 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2748
2749 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2750 if (error) {
2751 pr_err("Error installing key filter\n");
2752 goto err_free_keymap;
2753 }
2754
2755 dev->ntfy_supported = 1;
2756 }
2757
2758 /*
2759 * Determine hotkey query interface. Prefer using the INFO
2760 * method when it is available.
2761 */
2762 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2763 dev->info_supported = 1;
2764 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2765 dev->system_event_supported = 1;
2766
2767 if (!dev->info_supported && !dev->system_event_supported) {
2768 pr_warn("No hotkey query interface found\n");
2769 goto err_remove_filter;
2770 }
2771
2772 error = input_register_device(dev->hotkey_dev);
2773 if (error) {
2774 pr_info("Unable to register input device\n");
2775 goto err_remove_filter;
2776 }
2777
2778 return 0;
2779
2780 err_remove_filter:
2781 if (dev->ntfy_supported)
2782 i8042_remove_filter(toshiba_acpi_i8042_filter);
2783 err_free_keymap:
2784 sparse_keymap_free(dev->hotkey_dev);
2785 err_free_dev:
2786 input_free_device(dev->hotkey_dev);
2787 dev->hotkey_dev = NULL;
2788 return error;
2789 }
2790
2791 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2792 {
2793 struct backlight_properties props;
2794 int brightness;
2795 int ret;
2796
2797 /*
2798 * Some machines don't support the backlight methods at all, and
2799 * others support it read-only. Either of these is pretty useless,
2800 * so only register the backlight device if the backlight method
2801 * supports both reads and writes.
2802 */
2803 brightness = __get_lcd_brightness(dev);
2804 if (brightness < 0)
2805 return 0;
2806 /*
2807 * If transflective backlight is supported and the brightness is zero
2808 * (lowest brightness level), the set_lcd_brightness function will
2809 * activate the transflective backlight, making the LCD appear to be
2810 * turned off, simply increment the brightness level to avoid that.
2811 */
2812 if (dev->tr_backlight_supported && brightness == 0)
2813 brightness++;
2814 ret = set_lcd_brightness(dev, brightness);
2815 if (ret) {
2816 pr_debug("Backlight method is read-only, disabling backlight support\n");
2817 return 0;
2818 }
2819
2820 /*
2821 * Tell acpi-video-detect code to prefer vendor backlight on all
2822 * systems with transflective backlight and on dmi matched systems.
2823 */
2824 if (dev->tr_backlight_supported ||
2825 dmi_check_system(toshiba_vendor_backlight_dmi))
2826 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2827
2828 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2829 return 0;
2830
2831 memset(&props, 0, sizeof(props));
2832 props.type = BACKLIGHT_PLATFORM;
2833 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2834
2835 /* Adding an extra level and having 0 change to transflective mode */
2836 if (dev->tr_backlight_supported)
2837 props.max_brightness++;
2838
2839 dev->backlight_dev = backlight_device_register("toshiba",
2840 &dev->acpi_dev->dev,
2841 dev,
2842 &toshiba_backlight_data,
2843 &props);
2844 if (IS_ERR(dev->backlight_dev)) {
2845 ret = PTR_ERR(dev->backlight_dev);
2846 pr_err("Could not register toshiba backlight device\n");
2847 dev->backlight_dev = NULL;
2848 return ret;
2849 }
2850
2851 dev->backlight_dev->props.brightness = brightness;
2852 return 0;
2853 }
2854
2855 static void print_supported_features(struct toshiba_acpi_dev *dev)
2856 {
2857 pr_info("Supported laptop features:");
2858
2859 if (dev->hotkey_dev)
2860 pr_cont(" hotkeys");
2861 if (dev->backlight_dev)
2862 pr_cont(" backlight");
2863 if (dev->video_supported)
2864 pr_cont(" video-out");
2865 if (dev->fan_supported)
2866 pr_cont(" fan");
2867 if (dev->tr_backlight_supported)
2868 pr_cont(" transflective-backlight");
2869 if (dev->illumination_supported)
2870 pr_cont(" illumination");
2871 if (dev->kbd_illum_supported)
2872 pr_cont(" keyboard-backlight");
2873 if (dev->touchpad_supported)
2874 pr_cont(" touchpad");
2875 if (dev->eco_supported)
2876 pr_cont(" eco-led");
2877 if (dev->accelerometer_supported)
2878 pr_cont(" accelerometer-axes");
2879 if (dev->usb_sleep_charge_supported)
2880 pr_cont(" usb-sleep-charge");
2881 if (dev->usb_rapid_charge_supported)
2882 pr_cont(" usb-rapid-charge");
2883 if (dev->usb_sleep_music_supported)
2884 pr_cont(" usb-sleep-music");
2885 if (dev->kbd_function_keys_supported)
2886 pr_cont(" special-function-keys");
2887 if (dev->panel_power_on_supported)
2888 pr_cont(" panel-power-on");
2889 if (dev->usb_three_supported)
2890 pr_cont(" usb3");
2891 if (dev->wwan_supported)
2892 pr_cont(" wwan");
2893 if (dev->cooling_method_supported)
2894 pr_cont(" cooling-method");
2895
2896 pr_cont("\n");
2897 }
2898
2899 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2900 {
2901 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2902
2903 misc_deregister(&dev->miscdev);
2904
2905 remove_toshiba_proc_entries(dev);
2906
2907 if (dev->sysfs_created)
2908 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
2909 &toshiba_attr_group);
2910
2911 if (dev->ntfy_supported) {
2912 i8042_remove_filter(toshiba_acpi_i8042_filter);
2913 cancel_work_sync(&dev->hotkey_work);
2914 }
2915
2916 if (dev->hotkey_dev) {
2917 input_unregister_device(dev->hotkey_dev);
2918 sparse_keymap_free(dev->hotkey_dev);
2919 }
2920
2921 backlight_device_unregister(dev->backlight_dev);
2922
2923 if (dev->illumination_led_registered)
2924 led_classdev_unregister(&dev->led_dev);
2925
2926 if (dev->kbd_led_registered)
2927 led_classdev_unregister(&dev->kbd_led);
2928
2929 if (dev->eco_led_registered)
2930 led_classdev_unregister(&dev->eco_led);
2931
2932 if (dev->wwan_rfk) {
2933 rfkill_unregister(dev->wwan_rfk);
2934 rfkill_destroy(dev->wwan_rfk);
2935 }
2936
2937 if (toshiba_acpi)
2938 toshiba_acpi = NULL;
2939
2940 kfree(dev);
2941
2942 return 0;
2943 }
2944
2945 static const char *find_hci_method(acpi_handle handle)
2946 {
2947 if (acpi_has_method(handle, "GHCI"))
2948 return "GHCI";
2949
2950 if (acpi_has_method(handle, "SPFC"))
2951 return "SPFC";
2952
2953 return NULL;
2954 }
2955
2956 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
2957 {
2958 struct toshiba_acpi_dev *dev;
2959 const char *hci_method;
2960 u32 dummy;
2961 int ret = 0;
2962
2963 if (toshiba_acpi)
2964 return -EBUSY;
2965
2966 pr_info("Toshiba Laptop ACPI Extras version %s\n",
2967 TOSHIBA_ACPI_VERSION);
2968
2969 hci_method = find_hci_method(acpi_dev->handle);
2970 if (!hci_method) {
2971 pr_err("HCI interface not found\n");
2972 return -ENODEV;
2973 }
2974
2975 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
2976 if (!dev)
2977 return -ENOMEM;
2978 dev->acpi_dev = acpi_dev;
2979 dev->method_hci = hci_method;
2980 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
2981 dev->miscdev.name = "toshiba_acpi";
2982 dev->miscdev.fops = &toshiba_acpi_fops;
2983
2984 ret = misc_register(&dev->miscdev);
2985 if (ret) {
2986 pr_err("Failed to register miscdevice\n");
2987 kfree(dev);
2988 return ret;
2989 }
2990
2991 acpi_dev->driver_data = dev;
2992 dev_set_drvdata(&acpi_dev->dev, dev);
2993
2994 /* Query the BIOS for supported features */
2995
2996 /*
2997 * The "Special Functions" are always supported by the laptops
2998 * with the new keyboard layout, query for its presence to help
2999 * determine the keymap layout to use.
3000 */
3001 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3002 dev->kbd_function_keys_supported = !ret;
3003
3004 dev->hotkey_event_type = 0;
3005 if (toshiba_acpi_setup_keyboard(dev))
3006 pr_info("Unable to activate hotkeys\n");
3007
3008 /* Determine whether or not BIOS supports transflective backlight */
3009 ret = get_tr_backlight_status(dev, &dummy);
3010 dev->tr_backlight_supported = !ret;
3011
3012 ret = toshiba_acpi_setup_backlight(dev);
3013 if (ret)
3014 goto error;
3015
3016 toshiba_illumination_available(dev);
3017 if (dev->illumination_supported) {
3018 dev->led_dev.name = "toshiba::illumination";
3019 dev->led_dev.max_brightness = 1;
3020 dev->led_dev.brightness_set = toshiba_illumination_set;
3021 dev->led_dev.brightness_get = toshiba_illumination_get;
3022 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3023 dev->illumination_led_registered = true;
3024 }
3025
3026 toshiba_eco_mode_available(dev);
3027 if (dev->eco_supported) {
3028 dev->eco_led.name = "toshiba::eco_mode";
3029 dev->eco_led.max_brightness = 1;
3030 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3031 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3032 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3033 dev->eco_led_registered = true;
3034 }
3035
3036 toshiba_kbd_illum_available(dev);
3037 /*
3038 * Only register the LED if KBD illumination is supported
3039 * and the keyboard backlight operation mode is set to FN-Z
3040 */
3041 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
3042 dev->kbd_led.name = "toshiba::kbd_backlight";
3043 dev->kbd_led.max_brightness = 1;
3044 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3045 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3046 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3047 dev->kbd_led_registered = true;
3048 }
3049
3050 ret = toshiba_touchpad_get(dev, &dummy);
3051 dev->touchpad_supported = !ret;
3052
3053 toshiba_accelerometer_available(dev);
3054
3055 toshiba_usb_sleep_charge_available(dev);
3056
3057 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3058 dev->usb_rapid_charge_supported = !ret;
3059
3060 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3061 dev->usb_sleep_music_supported = !ret;
3062
3063 ret = toshiba_panel_power_on_get(dev, &dummy);
3064 dev->panel_power_on_supported = !ret;
3065
3066 ret = toshiba_usb_three_get(dev, &dummy);
3067 dev->usb_three_supported = !ret;
3068
3069 ret = get_video_status(dev, &dummy);
3070 dev->video_supported = !ret;
3071
3072 ret = get_fan_status(dev, &dummy);
3073 dev->fan_supported = !ret;
3074
3075 toshiba_wwan_available(dev);
3076 if (dev->wwan_supported)
3077 toshiba_acpi_setup_wwan_rfkill(dev);
3078
3079 toshiba_cooling_method_available(dev);
3080
3081 print_supported_features(dev);
3082
3083 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3084 &toshiba_attr_group);
3085 if (ret) {
3086 dev->sysfs_created = 0;
3087 goto error;
3088 }
3089 dev->sysfs_created = !ret;
3090
3091 create_toshiba_proc_entries(dev);
3092
3093 toshiba_acpi = dev;
3094
3095 return 0;
3096
3097 error:
3098 toshiba_acpi_remove(acpi_dev);
3099 return ret;
3100 }
3101
3102 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3103 {
3104 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3105
3106 switch (event) {
3107 case 0x80: /* Hotkeys and some system events */
3108 /*
3109 * Machines with this WMI GUID aren't supported due to bugs in
3110 * their AML.
3111 *
3112 * Return silently to avoid triggering a netlink event.
3113 */
3114 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3115 return;
3116 toshiba_acpi_process_hotkeys(dev);
3117 break;
3118 case 0x81: /* Dock events */
3119 case 0x82:
3120 case 0x83:
3121 pr_info("Dock event received %x\n", event);
3122 break;
3123 case 0x88: /* Thermal events */
3124 pr_info("Thermal event received\n");
3125 break;
3126 case 0x8f: /* LID closed */
3127 case 0x90: /* LID is closed and Dock has been ejected */
3128 break;
3129 case 0x8c: /* SATA power events */
3130 case 0x8b:
3131 pr_info("SATA power event received %x\n", event);
3132 break;
3133 case 0x92: /* Keyboard backlight mode changed */
3134 toshiba_acpi->kbd_event_generated = true;
3135 /* Update sysfs entries */
3136 if (sysfs_update_group(&acpi_dev->dev.kobj,
3137 &toshiba_attr_group))
3138 pr_err("Unable to update sysfs entries\n");
3139 break;
3140 case 0x85: /* Unknown */
3141 case 0x8d: /* Unknown */
3142 case 0x8e: /* Unknown */
3143 case 0x94: /* Unknown */
3144 case 0x95: /* Unknown */
3145 default:
3146 pr_info("Unknown event received %x\n", event);
3147 break;
3148 }
3149
3150 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3151 dev_name(&acpi_dev->dev),
3152 event, (event == 0x80) ?
3153 dev->last_key_event : 0);
3154 }
3155
3156 #ifdef CONFIG_PM_SLEEP
3157 static int toshiba_acpi_suspend(struct device *device)
3158 {
3159 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3160
3161 if (dev->hotkey_dev) {
3162 u32 result;
3163
3164 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3165 if (result != TOS_SUCCESS)
3166 pr_info("Unable to disable hotkeys\n");
3167 }
3168
3169 return 0;
3170 }
3171
3172 static int toshiba_acpi_resume(struct device *device)
3173 {
3174 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3175
3176 if (dev->hotkey_dev) {
3177 if (toshiba_acpi_enable_hotkeys(dev))
3178 pr_info("Unable to re-enable hotkeys\n");
3179 }
3180
3181 if (dev->wwan_rfk) {
3182 if (!toshiba_wireless_status(dev))
3183 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3184 }
3185
3186 return 0;
3187 }
3188 #endif
3189
3190 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3191 toshiba_acpi_suspend, toshiba_acpi_resume);
3192
3193 static struct acpi_driver toshiba_acpi_driver = {
3194 .name = "Toshiba ACPI driver",
3195 .owner = THIS_MODULE,
3196 .ids = toshiba_device_ids,
3197 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3198 .ops = {
3199 .add = toshiba_acpi_add,
3200 .remove = toshiba_acpi_remove,
3201 .notify = toshiba_acpi_notify,
3202 },
3203 .drv.pm = &toshiba_acpi_pm,
3204 };
3205
3206 static int __init toshiba_acpi_init(void)
3207 {
3208 int ret;
3209
3210 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3211 if (!toshiba_proc_dir) {
3212 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3213 return -ENODEV;
3214 }
3215
3216 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3217 if (ret) {
3218 pr_err("Failed to register ACPI driver: %d\n", ret);
3219 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3220 }
3221
3222 return ret;
3223 }
3224
3225 static void __exit toshiba_acpi_exit(void)
3226 {
3227 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3228 if (toshiba_proc_dir)
3229 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3230 }
3231
3232 module_init(toshiba_acpi_init);
3233 module_exit(toshiba_acpi_exit);
Linux kernel - Deliverables
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