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Keyboard backlight control for some Vaio Fit models
[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/init.h>
40 #include <linux/types.h>
41 #include <linux/proc_fs.h>
42 #include <linux/seq_file.h>
43 #include <linux/backlight.h>
44 #include <linux/input.h>
45 #include <linux/input/sparse-keymap.h>
46 #include <linux/leds.h>
47 #include <linux/slab.h>
48 #include <linux/workqueue.h>
49 #include <linux/i8042.h>
50 #include <linux/acpi.h>
51 #include <linux/dmi.h>
52 #include <linux/uaccess.h>
53 #include <linux/miscdevice.h>
54 #include <linux/rfkill.h>
55 #include <linux/toshiba.h>
56 #include <acpi/video.h>
57
58 MODULE_AUTHOR("John Belmonte");
59 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
60 MODULE_LICENSE("GPL");
61
62 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
63
64 /* Scan code for Fn key on TOS1900 models */
65 #define TOS1900_FN_SCAN 0x6e
66
67 /* Toshiba ACPI method paths */
68 #define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
69
70 /*
71 * The Toshiba configuration interface is composed of the HCI and the SCI,
72 * which are defined as follows:
73 *
74 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
75 * be uniform across all their models. Ideally we would just call
76 * dedicated ACPI methods instead of using this primitive interface.
77 * However the ACPI methods seem to be incomplete in some areas (for
78 * example they allow setting, but not reading, the LCD brightness value),
79 * so this is still useful.
80 *
81 * SCI stands for "System Configuration Interface" which aim is to
82 * conceal differences in hardware between different models.
83 */
84
85 #define TCI_WORDS 6
86
87 /* Operations */
88 #define HCI_SET 0xff00
89 #define HCI_GET 0xfe00
90 #define SCI_OPEN 0xf100
91 #define SCI_CLOSE 0xf200
92 #define SCI_GET 0xf300
93 #define SCI_SET 0xf400
94
95 /* Return codes */
96 #define TOS_SUCCESS 0x0000
97 #define TOS_SUCCESS2 0x0001
98 #define TOS_OPEN_CLOSE_OK 0x0044
99 #define TOS_FAILURE 0x1000
100 #define TOS_NOT_SUPPORTED 0x8000
101 #define TOS_ALREADY_OPEN 0x8100
102 #define TOS_NOT_OPENED 0x8200
103 #define TOS_INPUT_DATA_ERROR 0x8300
104 #define TOS_WRITE_PROTECTED 0x8400
105 #define TOS_NOT_PRESENT 0x8600
106 #define TOS_FIFO_EMPTY 0x8c00
107 #define TOS_DATA_NOT_AVAILABLE 0x8d20
108 #define TOS_NOT_INITIALIZED 0x8d50
109 #define TOS_NOT_INSTALLED 0x8e00
110
111 /* Registers */
112 #define HCI_FAN 0x0004
113 #define HCI_TR_BACKLIGHT 0x0005
114 #define HCI_SYSTEM_EVENT 0x0016
115 #define HCI_VIDEO_OUT 0x001c
116 #define HCI_HOTKEY_EVENT 0x001e
117 #define HCI_LCD_BRIGHTNESS 0x002a
118 #define HCI_WIRELESS 0x0056
119 #define HCI_ACCELEROMETER 0x006d
120 #define HCI_KBD_ILLUMINATION 0x0095
121 #define HCI_ECO_MODE 0x0097
122 #define HCI_ACCELEROMETER2 0x00a6
123 #define HCI_SYSTEM_INFO 0xc000
124 #define SCI_PANEL_POWER_ON 0x010d
125 #define SCI_ILLUMINATION 0x014e
126 #define SCI_USB_SLEEP_CHARGE 0x0150
127 #define SCI_KBD_ILLUM_STATUS 0x015c
128 #define SCI_USB_SLEEP_MUSIC 0x015e
129 #define SCI_USB_THREE 0x0169
130 #define SCI_TOUCHPAD 0x050e
131 #define SCI_KBD_FUNCTION_KEYS 0x0522
132
133 /* Field definitions */
134 #define HCI_ACCEL_MASK 0x7fff
135 #define HCI_HOTKEY_DISABLE 0x0b
136 #define HCI_HOTKEY_ENABLE 0x01
137 #define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
138 #define HCI_LCD_BRIGHTNESS_BITS 3
139 #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
140 #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
141 #define HCI_MISC_SHIFT 0x10
142 #define HCI_SYSTEM_TYPE1 0x10
143 #define HCI_SYSTEM_TYPE2 0x11
144 #define HCI_VIDEO_OUT_LCD 0x1
145 #define HCI_VIDEO_OUT_CRT 0x2
146 #define HCI_VIDEO_OUT_TV 0x4
147 #define SCI_KBD_MODE_MASK 0x1f
148 #define SCI_KBD_MODE_FNZ 0x1
149 #define SCI_KBD_MODE_AUTO 0x2
150 #define SCI_KBD_MODE_ON 0x8
151 #define SCI_KBD_MODE_OFF 0x10
152 #define SCI_KBD_TIME_MAX 0x3c001a
153 #define HCI_WIRELESS_STATUS 0x1
154 #define HCI_WIRELESS_WWAN 0x3
155 #define HCI_WIRELESS_WWAN_STATUS 0x2000
156 #define HCI_WIRELESS_WWAN_POWER 0x4000
157 #define SCI_USB_CHARGE_MODE_MASK 0xff
158 #define SCI_USB_CHARGE_DISABLED 0x00
159 #define SCI_USB_CHARGE_ALTERNATE 0x09
160 #define SCI_USB_CHARGE_TYPICAL 0x11
161 #define SCI_USB_CHARGE_AUTO 0x21
162 #define SCI_USB_CHARGE_BAT_MASK 0x7
163 #define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
164 #define SCI_USB_CHARGE_BAT_LVL_ON 0x4
165 #define SCI_USB_CHARGE_BAT_LVL 0x0200
166 #define SCI_USB_CHARGE_RAPID_DSP 0x0300
167
168 struct toshiba_acpi_dev {
169 struct acpi_device *acpi_dev;
170 const char *method_hci;
171 struct input_dev *hotkey_dev;
172 struct work_struct hotkey_work;
173 struct backlight_device *backlight_dev;
174 struct led_classdev led_dev;
175 struct led_classdev kbd_led;
176 struct led_classdev eco_led;
177 struct miscdevice miscdev;
178 struct rfkill *wwan_rfk;
179
180 int force_fan;
181 int last_key_event;
182 int key_event_valid;
183 int kbd_type;
184 int kbd_mode;
185 int kbd_time;
186 int usbsc_bat_level;
187 int usbsc_mode_base;
188 int hotkey_event_type;
189
190 unsigned int illumination_supported:1;
191 unsigned int video_supported:1;
192 unsigned int fan_supported:1;
193 unsigned int system_event_supported:1;
194 unsigned int ntfy_supported:1;
195 unsigned int info_supported:1;
196 unsigned int tr_backlight_supported:1;
197 unsigned int kbd_illum_supported:1;
198 unsigned int touchpad_supported:1;
199 unsigned int eco_supported:1;
200 unsigned int accelerometer_supported:1;
201 unsigned int usb_sleep_charge_supported:1;
202 unsigned int usb_rapid_charge_supported:1;
203 unsigned int usb_sleep_music_supported:1;
204 unsigned int kbd_function_keys_supported:1;
205 unsigned int panel_power_on_supported:1;
206 unsigned int usb_three_supported:1;
207 unsigned int wwan_supported:1;
208 unsigned int sysfs_created:1;
209 unsigned int special_functions;
210
211 bool kbd_event_generated;
212 bool kbd_led_registered;
213 bool illumination_led_registered;
214 bool eco_led_registered;
215 bool killswitch;
216 };
217
218 static struct toshiba_acpi_dev *toshiba_acpi;
219
220 static const struct acpi_device_id toshiba_device_ids[] = {
221 {"TOS6200", 0},
222 {"TOS6207", 0},
223 {"TOS6208", 0},
224 {"TOS1900", 0},
225 {"", 0},
226 };
227 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
228
229 static const struct key_entry toshiba_acpi_keymap[] = {
230 { KE_KEY, 0x9e, { KEY_RFKILL } },
231 { KE_KEY, 0x101, { KEY_MUTE } },
232 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
233 { KE_KEY, 0x103, { KEY_ZOOMIN } },
234 { KE_KEY, 0x10f, { KEY_TAB } },
235 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
236 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
237 { KE_KEY, 0x13b, { KEY_COFFEE } },
238 { KE_KEY, 0x13c, { KEY_BATTERY } },
239 { KE_KEY, 0x13d, { KEY_SLEEP } },
240 { KE_KEY, 0x13e, { KEY_SUSPEND } },
241 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
242 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
243 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
244 { KE_KEY, 0x142, { KEY_WLAN } },
245 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
246 { KE_KEY, 0x17f, { KEY_FN } },
247 { KE_KEY, 0xb05, { KEY_PROG2 } },
248 { KE_KEY, 0xb06, { KEY_WWW } },
249 { KE_KEY, 0xb07, { KEY_MAIL } },
250 { KE_KEY, 0xb30, { KEY_STOP } },
251 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
252 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
253 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
254 { KE_KEY, 0xb5a, { KEY_MEDIA } },
255 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
256 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
257 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
258 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
259 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
260 { KE_END, 0 },
261 };
262
263 static const struct key_entry toshiba_acpi_alt_keymap[] = {
264 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
265 { KE_KEY, 0x103, { KEY_ZOOMIN } },
266 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
267 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
268 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
269 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
270 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
271 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
272 { KE_KEY, 0x157, { KEY_MUTE } },
273 { KE_KEY, 0x158, { KEY_WLAN } },
274 { KE_END, 0 },
275 };
276
277 /*
278 * List of models which have a broken acpi-video backlight interface and thus
279 * need to use the toshiba (vendor) interface instead.
280 */
281 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
282 {}
283 };
284
285 /*
286 * Utility
287 */
288
289 static inline void _set_bit(u32 *word, u32 mask, int value)
290 {
291 *word = (*word & ~mask) | (mask * value);
292 }
293
294 /*
295 * ACPI interface wrappers
296 */
297
298 static int write_acpi_int(const char *methodName, int val)
299 {
300 acpi_status status;
301
302 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
303 return (status == AE_OK) ? 0 : -EIO;
304 }
305
306 /*
307 * Perform a raw configuration call. Here we don't care about input or output
308 * buffer format.
309 */
310 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
311 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
312 {
313 struct acpi_object_list params;
314 union acpi_object in_objs[TCI_WORDS];
315 struct acpi_buffer results;
316 union acpi_object out_objs[TCI_WORDS + 1];
317 acpi_status status;
318 int i;
319
320 params.count = TCI_WORDS;
321 params.pointer = in_objs;
322 for (i = 0; i < TCI_WORDS; ++i) {
323 in_objs[i].type = ACPI_TYPE_INTEGER;
324 in_objs[i].integer.value = in[i];
325 }
326
327 results.length = sizeof(out_objs);
328 results.pointer = out_objs;
329
330 status = acpi_evaluate_object(dev->acpi_dev->handle,
331 (char *)dev->method_hci, &params,
332 &results);
333 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
334 for (i = 0; i < out_objs->package.count; ++i)
335 out[i] = out_objs->package.elements[i].integer.value;
336 }
337
338 return status;
339 }
340
341 /*
342 * Common hci tasks
343 *
344 * In addition to the ACPI status, the HCI system returns a result which
345 * may be useful (such as "not supported").
346 */
347
348 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
349 {
350 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
351 u32 out[TCI_WORDS];
352 acpi_status status = tci_raw(dev, in, out);
353
354 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
355 }
356
357 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
358 {
359 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
360 u32 out[TCI_WORDS];
361 acpi_status status = tci_raw(dev, in, out);
362
363 if (ACPI_FAILURE(status))
364 return TOS_FAILURE;
365
366 *out1 = out[2];
367
368 return out[0];
369 }
370
371 /*
372 * Common sci tasks
373 */
374
375 static int sci_open(struct toshiba_acpi_dev *dev)
376 {
377 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
378 u32 out[TCI_WORDS];
379 acpi_status status;
380
381 status = tci_raw(dev, in, out);
382 if (ACPI_FAILURE(status)) {
383 pr_err("ACPI call to open SCI failed\n");
384 return 0;
385 }
386
387 if (out[0] == TOS_OPEN_CLOSE_OK) {
388 return 1;
389 } else if (out[0] == TOS_ALREADY_OPEN) {
390 pr_info("Toshiba SCI already opened\n");
391 return 1;
392 } else if (out[0] == TOS_NOT_SUPPORTED) {
393 /*
394 * Some BIOSes do not have the SCI open/close functions
395 * implemented and return 0x8000 (Not Supported), failing to
396 * register some supported features.
397 *
398 * Simply return 1 if we hit those affected laptops to make the
399 * supported features work.
400 *
401 * In the case that some laptops really do not support the SCI,
402 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
403 * and thus, not registering support for the queried feature.
404 */
405 return 1;
406 } else if (out[0] == TOS_NOT_PRESENT) {
407 pr_info("Toshiba SCI is not present\n");
408 }
409
410 return 0;
411 }
412
413 static void sci_close(struct toshiba_acpi_dev *dev)
414 {
415 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
416 u32 out[TCI_WORDS];
417 acpi_status status;
418
419 status = tci_raw(dev, in, out);
420 if (ACPI_FAILURE(status)) {
421 pr_err("ACPI call to close SCI failed\n");
422 return;
423 }
424
425 if (out[0] == TOS_OPEN_CLOSE_OK)
426 return;
427 else if (out[0] == TOS_NOT_OPENED)
428 pr_info("Toshiba SCI not opened\n");
429 else if (out[0] == TOS_NOT_PRESENT)
430 pr_info("Toshiba SCI is not present\n");
431 }
432
433 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
434 {
435 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
436 u32 out[TCI_WORDS];
437 acpi_status status = tci_raw(dev, in, out);
438
439 if (ACPI_FAILURE(status))
440 return TOS_FAILURE;
441
442 *out1 = out[2];
443
444 return out[0];
445 }
446
447 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
448 {
449 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
450 u32 out[TCI_WORDS];
451 acpi_status status = tci_raw(dev, in, out);
452
453 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
454 }
455
456 /* Illumination support */
457 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
458 {
459 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
460 u32 out[TCI_WORDS];
461 acpi_status status;
462
463 dev->illumination_supported = 0;
464 dev->illumination_led_registered = false;
465
466 if (!sci_open(dev))
467 return;
468
469 status = tci_raw(dev, in, out);
470 sci_close(dev);
471 if (ACPI_FAILURE(status))
472 pr_err("ACPI call to query Illumination support failed\n");
473 else if (out[0] == TOS_SUCCESS)
474 dev->illumination_supported = 1;
475 }
476
477 static void toshiba_illumination_set(struct led_classdev *cdev,
478 enum led_brightness brightness)
479 {
480 struct toshiba_acpi_dev *dev = container_of(cdev,
481 struct toshiba_acpi_dev, led_dev);
482 u32 result;
483 u32 state;
484
485 /* First request : initialize communication. */
486 if (!sci_open(dev))
487 return;
488
489 /* Switch the illumination on/off */
490 state = brightness ? 1 : 0;
491 result = sci_write(dev, SCI_ILLUMINATION, state);
492 sci_close(dev);
493 if (result == TOS_FAILURE)
494 pr_err("ACPI call for illumination failed\n");
495 }
496
497 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
498 {
499 struct toshiba_acpi_dev *dev = container_of(cdev,
500 struct toshiba_acpi_dev, led_dev);
501 u32 state, result;
502
503 /* First request : initialize communication. */
504 if (!sci_open(dev))
505 return LED_OFF;
506
507 /* Check the illumination */
508 result = sci_read(dev, SCI_ILLUMINATION, &state);
509 sci_close(dev);
510 if (result == TOS_FAILURE) {
511 pr_err("ACPI call for illumination failed\n");
512 return LED_OFF;
513 } else if (result != TOS_SUCCESS) {
514 return LED_OFF;
515 }
516
517 return state ? LED_FULL : LED_OFF;
518 }
519
520 /* KBD Illumination */
521 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
522 {
523 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
524 u32 out[TCI_WORDS];
525 acpi_status status;
526
527 dev->kbd_illum_supported = 0;
528 dev->kbd_led_registered = false;
529 dev->kbd_event_generated = false;
530
531 if (!sci_open(dev))
532 return;
533
534 status = tci_raw(dev, in, out);
535 sci_close(dev);
536 if (ACPI_FAILURE(status)) {
537 pr_err("ACPI call to query kbd illumination support failed\n");
538 } else if (out[0] == TOS_SUCCESS) {
539 /*
540 * Check for keyboard backlight timeout max value,
541 * previous kbd backlight implementation set this to
542 * 0x3c0003, and now the new implementation set this
543 * to 0x3c001a, use this to distinguish between them.
544 */
545 if (out[3] == SCI_KBD_TIME_MAX)
546 dev->kbd_type = 2;
547 else
548 dev->kbd_type = 1;
549 /* Get the current keyboard backlight mode */
550 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
551 /* Get the current time (1-60 seconds) */
552 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
553 /* Flag as supported */
554 dev->kbd_illum_supported = 1;
555 }
556 }
557
558 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
559 {
560 u32 result;
561
562 if (!sci_open(dev))
563 return -EIO;
564
565 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
566 sci_close(dev);
567 if (result == TOS_FAILURE)
568 pr_err("ACPI call to set KBD backlight status failed\n");
569 else if (result == TOS_NOT_SUPPORTED)
570 return -ENODEV;
571
572 return result == TOS_SUCCESS ? 0 : -EIO;
573 }
574
575 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
576 {
577 u32 result;
578
579 if (!sci_open(dev))
580 return -EIO;
581
582 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
583 sci_close(dev);
584 if (result == TOS_FAILURE)
585 pr_err("ACPI call to get KBD backlight status failed\n");
586 else if (result == TOS_NOT_SUPPORTED)
587 return -ENODEV;
588
589 return result == TOS_SUCCESS ? 0 : -EIO;
590 }
591
592 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
593 {
594 struct toshiba_acpi_dev *dev = container_of(cdev,
595 struct toshiba_acpi_dev, kbd_led);
596 u32 result;
597 u32 state;
598
599 /* Check the keyboard backlight state */
600 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
601 if (result == TOS_FAILURE) {
602 pr_err("ACPI call to get the keyboard backlight failed\n");
603 return LED_OFF;
604 } else if (result != TOS_SUCCESS) {
605 return LED_OFF;
606 }
607
608 return state ? LED_FULL : LED_OFF;
609 }
610
611 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
612 enum led_brightness brightness)
613 {
614 struct toshiba_acpi_dev *dev = container_of(cdev,
615 struct toshiba_acpi_dev, kbd_led);
616 u32 result;
617 u32 state;
618
619 /* Set the keyboard backlight state */
620 state = brightness ? 1 : 0;
621 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
622 if (result == TOS_FAILURE)
623 pr_err("ACPI call to set KBD Illumination mode failed\n");
624 }
625
626 /* TouchPad support */
627 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
628 {
629 u32 result;
630
631 if (!sci_open(dev))
632 return -EIO;
633
634 result = sci_write(dev, SCI_TOUCHPAD, state);
635 sci_close(dev);
636 if (result == TOS_FAILURE)
637 pr_err("ACPI call to set the touchpad failed\n");
638 else if (result == TOS_NOT_SUPPORTED)
639 return -ENODEV;
640
641 return result == TOS_SUCCESS ? 0 : -EIO;
642 }
643
644 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
645 {
646 u32 result;
647
648 if (!sci_open(dev))
649 return -EIO;
650
651 result = sci_read(dev, SCI_TOUCHPAD, state);
652 sci_close(dev);
653 if (result == TOS_FAILURE)
654 pr_err("ACPI call to query the touchpad failed\n");
655 else if (result == TOS_NOT_SUPPORTED)
656 return -ENODEV;
657
658 return result == TOS_SUCCESS ? 0 : -EIO;
659 }
660
661 /* Eco Mode support */
662 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
663 {
664 acpi_status status;
665 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
666 u32 out[TCI_WORDS];
667
668 dev->eco_supported = 0;
669 dev->eco_led_registered = false;
670
671 status = tci_raw(dev, in, out);
672 if (ACPI_FAILURE(status)) {
673 pr_err("ACPI call to get ECO led failed\n");
674 } else if (out[0] == TOS_INPUT_DATA_ERROR) {
675 /*
676 * If we receive 0x8300 (Input Data Error), it means that the
677 * LED device is present, but that we just screwed the input
678 * parameters.
679 *
680 * Let's query the status of the LED to see if we really have a
681 * success response, indicating the actual presense of the LED,
682 * bail out otherwise.
683 */
684 in[3] = 1;
685 status = tci_raw(dev, in, out);
686 if (ACPI_FAILURE(status))
687 pr_err("ACPI call to get ECO led failed\n");
688 else if (out[0] == TOS_SUCCESS)
689 dev->eco_supported = 1;
690 }
691 }
692
693 static enum led_brightness
694 toshiba_eco_mode_get_status(struct led_classdev *cdev)
695 {
696 struct toshiba_acpi_dev *dev = container_of(cdev,
697 struct toshiba_acpi_dev, eco_led);
698 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
699 u32 out[TCI_WORDS];
700 acpi_status status;
701
702 status = tci_raw(dev, in, out);
703 if (ACPI_FAILURE(status)) {
704 pr_err("ACPI call to get ECO led failed\n");
705 return LED_OFF;
706 } else if (out[0] != TOS_SUCCESS) {
707 return LED_OFF;
708 }
709
710 return out[2] ? LED_FULL : LED_OFF;
711 }
712
713 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
714 enum led_brightness brightness)
715 {
716 struct toshiba_acpi_dev *dev = container_of(cdev,
717 struct toshiba_acpi_dev, eco_led);
718 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
719 u32 out[TCI_WORDS];
720 acpi_status status;
721
722 /* Switch the Eco Mode led on/off */
723 in[2] = (brightness) ? 1 : 0;
724 status = tci_raw(dev, in, out);
725 if (ACPI_FAILURE(status))
726 pr_err("ACPI call to set ECO led failed\n");
727 }
728
729 /* Accelerometer support */
730 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
731 {
732 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
733 u32 out[TCI_WORDS];
734 acpi_status status;
735
736 dev->accelerometer_supported = 0;
737
738 /*
739 * Check if the accelerometer call exists,
740 * this call also serves as initialization
741 */
742 status = tci_raw(dev, in, out);
743 if (ACPI_FAILURE(status))
744 pr_err("ACPI call to query the accelerometer failed\n");
745 else if (out[0] == TOS_SUCCESS)
746 dev->accelerometer_supported = 1;
747 }
748
749 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
750 u32 *xy, u32 *z)
751 {
752 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
753 u32 out[TCI_WORDS];
754 acpi_status status;
755
756 /* Check the Accelerometer status */
757 status = tci_raw(dev, in, out);
758 if (ACPI_FAILURE(status)) {
759 pr_err("ACPI call to query the accelerometer failed\n");
760 return -EIO;
761 } else if (out[0] == TOS_NOT_SUPPORTED) {
762 return -ENODEV;
763 } else if (out[0] == TOS_SUCCESS) {
764 *xy = out[2];
765 *z = out[4];
766 return 0;
767 }
768
769 return -EIO;
770 }
771
772 /* Sleep (Charge and Music) utilities support */
773 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
774 {
775 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
776 u32 out[TCI_WORDS];
777 acpi_status status;
778
779 dev->usb_sleep_charge_supported = 0;
780
781 if (!sci_open(dev))
782 return;
783
784 status = tci_raw(dev, in, out);
785 if (ACPI_FAILURE(status)) {
786 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
787 sci_close(dev);
788 return;
789 } else if (out[0] == TOS_NOT_SUPPORTED) {
790 sci_close(dev);
791 return;
792 } else if (out[0] == TOS_SUCCESS) {
793 dev->usbsc_mode_base = out[4];
794 }
795
796 in[5] = SCI_USB_CHARGE_BAT_LVL;
797 status = tci_raw(dev, in, out);
798 sci_close(dev);
799 if (ACPI_FAILURE(status)) {
800 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
801 } else if (out[0] == TOS_SUCCESS) {
802 dev->usbsc_bat_level = out[2];
803 /* Flag as supported */
804 dev->usb_sleep_charge_supported = 1;
805 }
806
807 }
808
809 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
810 u32 *mode)
811 {
812 u32 result;
813
814 if (!sci_open(dev))
815 return -EIO;
816
817 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
818 sci_close(dev);
819 if (result == TOS_FAILURE)
820 pr_err("ACPI call to set USB S&C mode failed\n");
821 else if (result == TOS_NOT_SUPPORTED)
822 return -ENODEV;
823
824 return result == TOS_SUCCESS ? 0 : -EIO;
825 }
826
827 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
828 u32 mode)
829 {
830 u32 result;
831
832 if (!sci_open(dev))
833 return -EIO;
834
835 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
836 sci_close(dev);
837 if (result == TOS_FAILURE)
838 pr_err("ACPI call to set USB S&C mode failed\n");
839 else if (result == TOS_NOT_SUPPORTED)
840 return -ENODEV;
841
842 return result == TOS_SUCCESS ? 0 : -EIO;
843 }
844
845 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
846 u32 *mode)
847 {
848 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
849 u32 out[TCI_WORDS];
850 acpi_status status;
851
852 if (!sci_open(dev))
853 return -EIO;
854
855 in[5] = SCI_USB_CHARGE_BAT_LVL;
856 status = tci_raw(dev, in, out);
857 sci_close(dev);
858 if (ACPI_FAILURE(status)) {
859 pr_err("ACPI call to get USB S&C battery level failed\n");
860 } else if (out[0] == TOS_NOT_SUPPORTED) {
861 return -ENODEV;
862 } else if (out[0] == TOS_SUCCESS) {
863 *mode = out[2];
864 return 0;
865 }
866
867 return -EIO;
868 }
869
870 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
871 u32 mode)
872 {
873 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
874 u32 out[TCI_WORDS];
875 acpi_status status;
876
877 if (!sci_open(dev))
878 return -EIO;
879
880 in[2] = mode;
881 in[5] = SCI_USB_CHARGE_BAT_LVL;
882 status = tci_raw(dev, in, out);
883 sci_close(dev);
884 if (ACPI_FAILURE(status))
885 pr_err("ACPI call to set USB S&C battery level failed\n");
886 else if (out[0] == TOS_NOT_SUPPORTED)
887 return -ENODEV;
888
889 return out[0] == TOS_SUCCESS ? 0 : -EIO;
890 }
891
892 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
893 u32 *state)
894 {
895 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
896 u32 out[TCI_WORDS];
897 acpi_status status;
898
899 if (!sci_open(dev))
900 return -EIO;
901
902 in[5] = SCI_USB_CHARGE_RAPID_DSP;
903 status = tci_raw(dev, in, out);
904 sci_close(dev);
905 if (ACPI_FAILURE(status)) {
906 pr_err("ACPI call to get USB Rapid Charge failed\n");
907 } else if (out[0] == TOS_NOT_SUPPORTED) {
908 return -ENODEV;
909 } else if (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) {
910 *state = out[2];
911 return 0;
912 }
913
914 return -EIO;
915 }
916
917 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
918 u32 state)
919 {
920 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
921 u32 out[TCI_WORDS];
922 acpi_status status;
923
924 if (!sci_open(dev))
925 return -EIO;
926
927 in[2] = state;
928 in[5] = SCI_USB_CHARGE_RAPID_DSP;
929 status = tci_raw(dev, in, out);
930 sci_close(dev);
931 if (ACPI_FAILURE(status))
932 pr_err("ACPI call to set USB Rapid Charge failed\n");
933 else if (out[0] == TOS_NOT_SUPPORTED)
934 return -ENODEV;
935
936 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
937 }
938
939 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
940 {
941 u32 result;
942
943 if (!sci_open(dev))
944 return -EIO;
945
946 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
947 sci_close(dev);
948 if (result == TOS_FAILURE)
949 pr_err("ACPI call to get Sleep and Music failed\n");
950 else if (result == TOS_NOT_SUPPORTED)
951 return -ENODEV;
952
953 return result == TOS_SUCCESS ? 0 : -EIO;
954 }
955
956 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
957 {
958 u32 result;
959
960 if (!sci_open(dev))
961 return -EIO;
962
963 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
964 sci_close(dev);
965 if (result == TOS_FAILURE)
966 pr_err("ACPI call to set Sleep and Music failed\n");
967 else if (result == TOS_NOT_SUPPORTED)
968 return -ENODEV;
969
970 return result == TOS_SUCCESS ? 0 : -EIO;
971 }
972
973 /* Keyboard function keys */
974 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
975 {
976 u32 result;
977
978 if (!sci_open(dev))
979 return -EIO;
980
981 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
982 sci_close(dev);
983 if (result == TOS_FAILURE)
984 pr_err("ACPI call to get KBD function keys failed\n");
985 else if (result == TOS_NOT_SUPPORTED)
986 return -ENODEV;
987
988 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
989 }
990
991 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
992 {
993 u32 result;
994
995 if (!sci_open(dev))
996 return -EIO;
997
998 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
999 sci_close(dev);
1000 if (result == TOS_FAILURE)
1001 pr_err("ACPI call to set KBD function keys failed\n");
1002 else if (result == TOS_NOT_SUPPORTED)
1003 return -ENODEV;
1004
1005 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1006 }
1007
1008 /* Panel Power ON */
1009 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1010 {
1011 u32 result;
1012
1013 if (!sci_open(dev))
1014 return -EIO;
1015
1016 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1017 sci_close(dev);
1018 if (result == TOS_FAILURE)
1019 pr_err("ACPI call to get Panel Power ON failed\n");
1020 else if (result == TOS_NOT_SUPPORTED)
1021 return -ENODEV;
1022
1023 return result == TOS_SUCCESS ? 0 : -EIO;
1024 }
1025
1026 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1027 {
1028 u32 result;
1029
1030 if (!sci_open(dev))
1031 return -EIO;
1032
1033 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1034 sci_close(dev);
1035 if (result == TOS_FAILURE)
1036 pr_err("ACPI call to set Panel Power ON failed\n");
1037 else if (result == TOS_NOT_SUPPORTED)
1038 return -ENODEV;
1039
1040 return result == TOS_SUCCESS ? 0 : -EIO;
1041 }
1042
1043 /* USB Three */
1044 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1045 {
1046 u32 result;
1047
1048 if (!sci_open(dev))
1049 return -EIO;
1050
1051 result = sci_read(dev, SCI_USB_THREE, state);
1052 sci_close(dev);
1053 if (result == TOS_FAILURE)
1054 pr_err("ACPI call to get USB 3 failed\n");
1055 else if (result == TOS_NOT_SUPPORTED)
1056 return -ENODEV;
1057
1058 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1059 }
1060
1061 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1062 {
1063 u32 result;
1064
1065 if (!sci_open(dev))
1066 return -EIO;
1067
1068 result = sci_write(dev, SCI_USB_THREE, state);
1069 sci_close(dev);
1070 if (result == TOS_FAILURE)
1071 pr_err("ACPI call to set USB 3 failed\n");
1072 else if (result == TOS_NOT_SUPPORTED)
1073 return -ENODEV;
1074
1075 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1076 }
1077
1078 /* Hotkey Event type */
1079 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1080 u32 *type)
1081 {
1082 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1083 u32 out[TCI_WORDS];
1084 acpi_status status;
1085
1086 status = tci_raw(dev, in, out);
1087 if (ACPI_FAILURE(status)) {
1088 pr_err("ACPI call to get System type failed\n");
1089 } else if (out[0] == TOS_NOT_SUPPORTED) {
1090 return -ENODEV;
1091 } else if (out[0] == TOS_SUCCESS) {
1092 *type = out[3];
1093 return 0;
1094 }
1095
1096 return -EIO;
1097 }
1098
1099 /* Wireless status (RFKill, WLAN, BT, WWAN) */
1100 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1101 {
1102 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1103 u32 out[TCI_WORDS];
1104 acpi_status status;
1105
1106 in[3] = HCI_WIRELESS_STATUS;
1107 status = tci_raw(dev, in, out);
1108
1109 if (ACPI_FAILURE(status)) {
1110 pr_err("ACPI call to get Wireless status failed\n");
1111 return -EIO;
1112 }
1113
1114 if (out[0] == TOS_NOT_SUPPORTED)
1115 return -ENODEV;
1116
1117 if (out[0] != TOS_SUCCESS)
1118 return -EIO;
1119
1120 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1121
1122 return 0;
1123 }
1124
1125 /* WWAN */
1126 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1127 {
1128 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1129 u32 out[TCI_WORDS];
1130 acpi_status status;
1131
1132 dev->wwan_supported = 0;
1133
1134 /*
1135 * WWAN support can be queried by setting the in[3] value to
1136 * HCI_WIRELESS_WWAN (0x03).
1137 *
1138 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1139 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1140 *
1141 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1142 * or TOS_NOT_SUPPORTED (0x8000).
1143 */
1144 in[3] = HCI_WIRELESS_WWAN;
1145 status = tci_raw(dev, in, out);
1146
1147 if (ACPI_FAILURE(status)) {
1148 pr_err("ACPI call to get WWAN status failed\n");
1149 return;
1150 }
1151
1152 if (out[0] != TOS_SUCCESS)
1153 return;
1154
1155 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1156 }
1157
1158 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1159 {
1160 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1161 u32 out[TCI_WORDS];
1162 acpi_status status;
1163
1164 in[3] = HCI_WIRELESS_WWAN_STATUS;
1165 status = tci_raw(dev, in, out);
1166
1167 if (ACPI_FAILURE(status)) {
1168 pr_err("ACPI call to set WWAN status failed\n");
1169 return -EIO;
1170 }
1171
1172 if (out[0] == TOS_NOT_SUPPORTED)
1173 return -ENODEV;
1174
1175 if (out[0] != TOS_SUCCESS)
1176 return -EIO;
1177
1178 /*
1179 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1180 * (de)activate the device, but some others need the
1181 * HCI_WIRELESS_WWAN_POWER call as well.
1182 */
1183 in[3] = HCI_WIRELESS_WWAN_POWER;
1184 status = tci_raw(dev, in, out);
1185
1186 if (ACPI_FAILURE(status)) {
1187 pr_err("ACPI call to set WWAN power failed\n");
1188 return -EIO;
1189 }
1190
1191 if (out[0] == TOS_NOT_SUPPORTED)
1192 return -ENODEV;
1193
1194 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1195 }
1196
1197 /* Transflective Backlight */
1198 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1199 {
1200 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1201
1202 if (result == TOS_FAILURE)
1203 pr_err("ACPI call to get Transflective Backlight failed\n");
1204 else if (result == TOS_NOT_SUPPORTED)
1205 return -ENODEV;
1206
1207 return result == TOS_SUCCESS ? 0 : -EIO;
1208 }
1209
1210 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1211 {
1212 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1213
1214 if (result == TOS_FAILURE)
1215 pr_err("ACPI call to set Transflective Backlight failed\n");
1216 else if (result == TOS_NOT_SUPPORTED)
1217 return -ENODEV;
1218
1219 return result == TOS_SUCCESS ? 0 : -EIO;
1220 }
1221
1222 static struct proc_dir_entry *toshiba_proc_dir;
1223
1224 /* LCD Brightness */
1225 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1226 {
1227 u32 result;
1228 u32 value;
1229 int brightness = 0;
1230
1231 if (dev->tr_backlight_supported) {
1232 int ret = get_tr_backlight_status(dev, &value);
1233
1234 if (ret)
1235 return ret;
1236 if (value)
1237 return 0;
1238 brightness++;
1239 }
1240
1241 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1242 if (result == TOS_FAILURE)
1243 pr_err("ACPI call to get LCD Brightness failed\n");
1244 else if (result == TOS_NOT_SUPPORTED)
1245 return -ENODEV;
1246 if (result == TOS_SUCCESS)
1247 return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
1248
1249 return -EIO;
1250 }
1251
1252 static int get_lcd_brightness(struct backlight_device *bd)
1253 {
1254 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1255
1256 return __get_lcd_brightness(dev);
1257 }
1258
1259 static int lcd_proc_show(struct seq_file *m, void *v)
1260 {
1261 struct toshiba_acpi_dev *dev = m->private;
1262 int levels;
1263 int value;
1264
1265 if (!dev->backlight_dev)
1266 return -ENODEV;
1267
1268 levels = dev->backlight_dev->props.max_brightness + 1;
1269 value = get_lcd_brightness(dev->backlight_dev);
1270 if (value >= 0) {
1271 seq_printf(m, "brightness: %d\n", value);
1272 seq_printf(m, "brightness_levels: %d\n", levels);
1273 return 0;
1274 }
1275
1276 pr_err("Error reading LCD brightness\n");
1277
1278 return -EIO;
1279 }
1280
1281 static int lcd_proc_open(struct inode *inode, struct file *file)
1282 {
1283 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1284 }
1285
1286 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1287 {
1288 u32 result;
1289
1290 if (dev->tr_backlight_supported) {
1291 int ret = set_tr_backlight_status(dev, !value);
1292
1293 if (ret)
1294 return ret;
1295 if (value)
1296 value--;
1297 }
1298
1299 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1300 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1301 if (result == TOS_FAILURE)
1302 pr_err("ACPI call to set LCD Brightness failed\n");
1303 else if (result == TOS_NOT_SUPPORTED)
1304 return -ENODEV;
1305
1306 return result == TOS_SUCCESS ? 0 : -EIO;
1307 }
1308
1309 static int set_lcd_status(struct backlight_device *bd)
1310 {
1311 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1312
1313 return set_lcd_brightness(dev, bd->props.brightness);
1314 }
1315
1316 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1317 size_t count, loff_t *pos)
1318 {
1319 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1320 char cmd[42];
1321 size_t len;
1322 int levels = dev->backlight_dev->props.max_brightness + 1;
1323 int value;
1324
1325 len = min(count, sizeof(cmd) - 1);
1326 if (copy_from_user(cmd, buf, len))
1327 return -EFAULT;
1328 cmd[len] = '\0';
1329
1330 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1331 value < 0 && value > levels)
1332 return -EINVAL;
1333
1334 if (set_lcd_brightness(dev, value))
1335 return -EIO;
1336
1337 return count;
1338 }
1339
1340 static const struct file_operations lcd_proc_fops = {
1341 .owner = THIS_MODULE,
1342 .open = lcd_proc_open,
1343 .read = seq_read,
1344 .llseek = seq_lseek,
1345 .release = single_release,
1346 .write = lcd_proc_write,
1347 };
1348
1349 /* Video-Out */
1350 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1351 {
1352 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1353
1354 if (result == TOS_FAILURE)
1355 pr_err("ACPI call to get Video-Out failed\n");
1356 else if (result == TOS_NOT_SUPPORTED)
1357 return -ENODEV;
1358
1359 return result == TOS_SUCCESS ? 0 : -EIO;
1360 }
1361
1362 static int video_proc_show(struct seq_file *m, void *v)
1363 {
1364 struct toshiba_acpi_dev *dev = m->private;
1365 u32 value;
1366
1367 if (!get_video_status(dev, &value)) {
1368 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1369 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1370 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1371
1372 seq_printf(m, "lcd_out: %d\n", is_lcd);
1373 seq_printf(m, "crt_out: %d\n", is_crt);
1374 seq_printf(m, "tv_out: %d\n", is_tv);
1375 return 0;
1376 }
1377
1378 return -EIO;
1379 }
1380
1381 static int video_proc_open(struct inode *inode, struct file *file)
1382 {
1383 return single_open(file, video_proc_show, PDE_DATA(inode));
1384 }
1385
1386 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1387 size_t count, loff_t *pos)
1388 {
1389 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1390 char *buffer;
1391 char *cmd;
1392 int remain = count;
1393 int lcd_out = -1;
1394 int crt_out = -1;
1395 int tv_out = -1;
1396 int value;
1397 int ret;
1398 u32 video_out;
1399
1400 cmd = kmalloc(count + 1, GFP_KERNEL);
1401 if (!cmd)
1402 return -ENOMEM;
1403 if (copy_from_user(cmd, buf, count)) {
1404 kfree(cmd);
1405 return -EFAULT;
1406 }
1407 cmd[count] = '\0';
1408
1409 buffer = cmd;
1410
1411 /*
1412 * Scan expression. Multiple expressions may be delimited with ;
1413 * NOTE: To keep scanning simple, invalid fields are ignored.
1414 */
1415 while (remain) {
1416 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1417 lcd_out = value & 1;
1418 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1419 crt_out = value & 1;
1420 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1421 tv_out = value & 1;
1422 /* Advance to one character past the next ; */
1423 do {
1424 ++buffer;
1425 --remain;
1426 } while (remain && *(buffer - 1) != ';');
1427 }
1428
1429 kfree(cmd);
1430
1431 ret = get_video_status(dev, &video_out);
1432 if (!ret) {
1433 unsigned int new_video_out = video_out;
1434
1435 if (lcd_out != -1)
1436 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1437 if (crt_out != -1)
1438 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1439 if (tv_out != -1)
1440 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1441 /*
1442 * To avoid unnecessary video disruption, only write the new
1443 * video setting if something changed.
1444 */
1445 if (new_video_out != video_out)
1446 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1447 }
1448
1449 return ret ? -EIO : count;
1450 }
1451
1452 static const struct file_operations video_proc_fops = {
1453 .owner = THIS_MODULE,
1454 .open = video_proc_open,
1455 .read = seq_read,
1456 .llseek = seq_lseek,
1457 .release = single_release,
1458 .write = video_proc_write,
1459 };
1460
1461 /* Fan status */
1462 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1463 {
1464 u32 result = hci_read(dev, HCI_FAN, status);
1465
1466 if (result == TOS_FAILURE)
1467 pr_err("ACPI call to get Fan status failed\n");
1468 else if (result == TOS_NOT_SUPPORTED)
1469 return -ENODEV;
1470
1471 return result == TOS_SUCCESS ? 0 : -EIO;
1472 }
1473
1474 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1475 {
1476 u32 result = hci_write(dev, HCI_FAN, status);
1477
1478 if (result == TOS_FAILURE)
1479 pr_err("ACPI call to set Fan status failed\n");
1480 else if (result == TOS_NOT_SUPPORTED)
1481 return -ENODEV;
1482
1483 return result == TOS_SUCCESS ? 0 : -EIO;
1484 }
1485
1486 static int fan_proc_show(struct seq_file *m, void *v)
1487 {
1488 struct toshiba_acpi_dev *dev = m->private;
1489 u32 value;
1490
1491 if (get_fan_status(dev, &value))
1492 return -EIO;
1493
1494 seq_printf(m, "running: %d\n", (value > 0));
1495 seq_printf(m, "force_on: %d\n", dev->force_fan);
1496
1497 return 0;
1498 }
1499
1500 static int fan_proc_open(struct inode *inode, struct file *file)
1501 {
1502 return single_open(file, fan_proc_show, PDE_DATA(inode));
1503 }
1504
1505 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1506 size_t count, loff_t *pos)
1507 {
1508 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1509 char cmd[42];
1510 size_t len;
1511 int value;
1512
1513 len = min(count, sizeof(cmd) - 1);
1514 if (copy_from_user(cmd, buf, len))
1515 return -EFAULT;
1516 cmd[len] = '\0';
1517
1518 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1519 value != 0 && value != 1)
1520 return -EINVAL;
1521
1522 if (set_fan_status(dev, value))
1523 return -EIO;
1524
1525 dev->force_fan = value;
1526
1527 return count;
1528 }
1529
1530 static const struct file_operations fan_proc_fops = {
1531 .owner = THIS_MODULE,
1532 .open = fan_proc_open,
1533 .read = seq_read,
1534 .llseek = seq_lseek,
1535 .release = single_release,
1536 .write = fan_proc_write,
1537 };
1538
1539 static int keys_proc_show(struct seq_file *m, void *v)
1540 {
1541 struct toshiba_acpi_dev *dev = m->private;
1542
1543 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1544 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1545
1546 return 0;
1547 }
1548
1549 static int keys_proc_open(struct inode *inode, struct file *file)
1550 {
1551 return single_open(file, keys_proc_show, PDE_DATA(inode));
1552 }
1553
1554 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1555 size_t count, loff_t *pos)
1556 {
1557 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1558 char cmd[42];
1559 size_t len;
1560 int value;
1561
1562 len = min(count, sizeof(cmd) - 1);
1563 if (copy_from_user(cmd, buf, len))
1564 return -EFAULT;
1565 cmd[len] = '\0';
1566
1567 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1568 dev->key_event_valid = 0;
1569 else
1570 return -EINVAL;
1571
1572 return count;
1573 }
1574
1575 static const struct file_operations keys_proc_fops = {
1576 .owner = THIS_MODULE,
1577 .open = keys_proc_open,
1578 .read = seq_read,
1579 .llseek = seq_lseek,
1580 .release = single_release,
1581 .write = keys_proc_write,
1582 };
1583
1584 static int version_proc_show(struct seq_file *m, void *v)
1585 {
1586 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1587 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1588 return 0;
1589 }
1590
1591 static int version_proc_open(struct inode *inode, struct file *file)
1592 {
1593 return single_open(file, version_proc_show, PDE_DATA(inode));
1594 }
1595
1596 static const struct file_operations version_proc_fops = {
1597 .owner = THIS_MODULE,
1598 .open = version_proc_open,
1599 .read = seq_read,
1600 .llseek = seq_lseek,
1601 .release = single_release,
1602 };
1603
1604 /*
1605 * Proc and module init
1606 */
1607
1608 #define PROC_TOSHIBA "toshiba"
1609
1610 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1611 {
1612 if (dev->backlight_dev)
1613 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1614 &lcd_proc_fops, dev);
1615 if (dev->video_supported)
1616 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1617 &video_proc_fops, dev);
1618 if (dev->fan_supported)
1619 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1620 &fan_proc_fops, dev);
1621 if (dev->hotkey_dev)
1622 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1623 &keys_proc_fops, dev);
1624 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1625 &version_proc_fops, dev);
1626 }
1627
1628 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1629 {
1630 if (dev->backlight_dev)
1631 remove_proc_entry("lcd", toshiba_proc_dir);
1632 if (dev->video_supported)
1633 remove_proc_entry("video", toshiba_proc_dir);
1634 if (dev->fan_supported)
1635 remove_proc_entry("fan", toshiba_proc_dir);
1636 if (dev->hotkey_dev)
1637 remove_proc_entry("keys", toshiba_proc_dir);
1638 remove_proc_entry("version", toshiba_proc_dir);
1639 }
1640
1641 static const struct backlight_ops toshiba_backlight_data = {
1642 .options = BL_CORE_SUSPENDRESUME,
1643 .get_brightness = get_lcd_brightness,
1644 .update_status = set_lcd_status,
1645 };
1646
1647 /* Keyboard backlight work */
1648 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1649
1650 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1651
1652 /*
1653 * Sysfs files
1654 */
1655 static ssize_t version_show(struct device *dev,
1656 struct device_attribute *attr, char *buf)
1657 {
1658 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1659 }
1660 static DEVICE_ATTR_RO(version);
1661
1662 static ssize_t fan_store(struct device *dev,
1663 struct device_attribute *attr,
1664 const char *buf, size_t count)
1665 {
1666 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1667 int state;
1668 int ret;
1669
1670 ret = kstrtoint(buf, 0, &state);
1671 if (ret)
1672 return ret;
1673
1674 if (state != 0 && state != 1)
1675 return -EINVAL;
1676
1677 ret = set_fan_status(toshiba, state);
1678 if (ret)
1679 return ret;
1680
1681 return count;
1682 }
1683
1684 static ssize_t fan_show(struct device *dev,
1685 struct device_attribute *attr, char *buf)
1686 {
1687 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1688 u32 value;
1689 int ret;
1690
1691 ret = get_fan_status(toshiba, &value);
1692 if (ret)
1693 return ret;
1694
1695 return sprintf(buf, "%d\n", value);
1696 }
1697 static DEVICE_ATTR_RW(fan);
1698
1699 static ssize_t kbd_backlight_mode_store(struct device *dev,
1700 struct device_attribute *attr,
1701 const char *buf, size_t count)
1702 {
1703 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1704 int mode;
1705 int ret;
1706
1707
1708 ret = kstrtoint(buf, 0, &mode);
1709 if (ret)
1710 return ret;
1711
1712 /* Check for supported modes depending on keyboard backlight type */
1713 if (toshiba->kbd_type == 1) {
1714 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1715 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1716 return -EINVAL;
1717 } else if (toshiba->kbd_type == 2) {
1718 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1719 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1720 mode != SCI_KBD_MODE_OFF)
1721 return -EINVAL;
1722 }
1723
1724 /*
1725 * Set the Keyboard Backlight Mode where:
1726 * Auto - KBD backlight turns off automatically in given time
1727 * FN-Z - KBD backlight "toggles" when hotkey pressed
1728 * ON - KBD backlight is always on
1729 * OFF - KBD backlight is always off
1730 */
1731
1732 /* Only make a change if the actual mode has changed */
1733 if (toshiba->kbd_mode != mode) {
1734 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1735 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1736
1737 /* OR the "base time" to the actual method format */
1738 if (toshiba->kbd_type == 1) {
1739 /* Type 1 requires the current mode */
1740 time |= toshiba->kbd_mode;
1741 } else if (toshiba->kbd_type == 2) {
1742 /* Type 2 requires the desired mode */
1743 time |= mode;
1744 }
1745
1746 ret = toshiba_kbd_illum_status_set(toshiba, time);
1747 if (ret)
1748 return ret;
1749
1750 toshiba->kbd_mode = mode;
1751
1752 /*
1753 * Some laptop models with the second generation backlit
1754 * keyboard (type 2) do not generate the keyboard backlight
1755 * changed event (0x92), and thus, the driver will never update
1756 * the sysfs entries.
1757 *
1758 * The event is generated right when changing the keyboard
1759 * backlight mode and the *notify function will set the
1760 * kbd_event_generated to true.
1761 *
1762 * In case the event is not generated, schedule the keyboard
1763 * backlight work to update the sysfs entries and emulate the
1764 * event via genetlink.
1765 */
1766 if (toshiba->kbd_type == 2 &&
1767 !toshiba_acpi->kbd_event_generated)
1768 schedule_work(&kbd_bl_work);
1769 }
1770
1771 return count;
1772 }
1773
1774 static ssize_t kbd_backlight_mode_show(struct device *dev,
1775 struct device_attribute *attr,
1776 char *buf)
1777 {
1778 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1779 u32 time;
1780
1781 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1782 return -EIO;
1783
1784 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1785 }
1786 static DEVICE_ATTR_RW(kbd_backlight_mode);
1787
1788 static ssize_t kbd_type_show(struct device *dev,
1789 struct device_attribute *attr, char *buf)
1790 {
1791 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1792
1793 return sprintf(buf, "%d\n", toshiba->kbd_type);
1794 }
1795 static DEVICE_ATTR_RO(kbd_type);
1796
1797 static ssize_t available_kbd_modes_show(struct device *dev,
1798 struct device_attribute *attr,
1799 char *buf)
1800 {
1801 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1802
1803 if (toshiba->kbd_type == 1)
1804 return sprintf(buf, "0x%x 0x%x\n",
1805 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1806
1807 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1808 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1809 }
1810 static DEVICE_ATTR_RO(available_kbd_modes);
1811
1812 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1813 struct device_attribute *attr,
1814 const char *buf, size_t count)
1815 {
1816 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1817 int time;
1818 int ret;
1819
1820 ret = kstrtoint(buf, 0, &time);
1821 if (ret)
1822 return ret;
1823
1824 /* Check for supported values depending on kbd_type */
1825 if (toshiba->kbd_type == 1) {
1826 if (time < 0 || time > 60)
1827 return -EINVAL;
1828 } else if (toshiba->kbd_type == 2) {
1829 if (time < 1 || time > 60)
1830 return -EINVAL;
1831 }
1832
1833 /* Set the Keyboard Backlight Timeout */
1834
1835 /* Only make a change if the actual timeout has changed */
1836 if (toshiba->kbd_time != time) {
1837 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1838 time = time << HCI_MISC_SHIFT;
1839 /* OR the "base time" to the actual method format */
1840 if (toshiba->kbd_type == 1)
1841 time |= SCI_KBD_MODE_FNZ;
1842 else if (toshiba->kbd_type == 2)
1843 time |= SCI_KBD_MODE_AUTO;
1844
1845 ret = toshiba_kbd_illum_status_set(toshiba, time);
1846 if (ret)
1847 return ret;
1848
1849 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1850 }
1851
1852 return count;
1853 }
1854
1855 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1856 struct device_attribute *attr,
1857 char *buf)
1858 {
1859 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1860 u32 time;
1861
1862 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1863 return -EIO;
1864
1865 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1866 }
1867 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1868
1869 static ssize_t touchpad_store(struct device *dev,
1870 struct device_attribute *attr,
1871 const char *buf, size_t count)
1872 {
1873 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1874 int state;
1875 int ret;
1876
1877 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1878 ret = kstrtoint(buf, 0, &state);
1879 if (ret)
1880 return ret;
1881 if (state != 0 && state != 1)
1882 return -EINVAL;
1883
1884 ret = toshiba_touchpad_set(toshiba, state);
1885 if (ret)
1886 return ret;
1887
1888 return count;
1889 }
1890
1891 static ssize_t touchpad_show(struct device *dev,
1892 struct device_attribute *attr, char *buf)
1893 {
1894 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1895 u32 state;
1896 int ret;
1897
1898 ret = toshiba_touchpad_get(toshiba, &state);
1899 if (ret < 0)
1900 return ret;
1901
1902 return sprintf(buf, "%i\n", state);
1903 }
1904 static DEVICE_ATTR_RW(touchpad);
1905
1906 static ssize_t position_show(struct device *dev,
1907 struct device_attribute *attr, char *buf)
1908 {
1909 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1910 u32 xyval, zval, tmp;
1911 u16 x, y, z;
1912 int ret;
1913
1914 xyval = zval = 0;
1915 ret = toshiba_accelerometer_get(toshiba, &xyval, &zval);
1916 if (ret < 0)
1917 return ret;
1918
1919 x = xyval & HCI_ACCEL_MASK;
1920 tmp = xyval >> HCI_MISC_SHIFT;
1921 y = tmp & HCI_ACCEL_MASK;
1922 z = zval & HCI_ACCEL_MASK;
1923
1924 return sprintf(buf, "%d %d %d\n", x, y, z);
1925 }
1926 static DEVICE_ATTR_RO(position);
1927
1928 static ssize_t usb_sleep_charge_show(struct device *dev,
1929 struct device_attribute *attr, char *buf)
1930 {
1931 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1932 u32 mode;
1933 int ret;
1934
1935 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
1936 if (ret < 0)
1937 return ret;
1938
1939 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
1940 }
1941
1942 static ssize_t usb_sleep_charge_store(struct device *dev,
1943 struct device_attribute *attr,
1944 const char *buf, size_t count)
1945 {
1946 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1947 u32 mode;
1948 int state;
1949 int ret;
1950
1951 ret = kstrtoint(buf, 0, &state);
1952 if (ret)
1953 return ret;
1954 /*
1955 * Check for supported values, where:
1956 * 0 - Disabled
1957 * 1 - Alternate (Non USB conformant devices that require more power)
1958 * 2 - Auto (USB conformant devices)
1959 * 3 - Typical
1960 */
1961 if (state != 0 && state != 1 && state != 2 && state != 3)
1962 return -EINVAL;
1963
1964 /* Set the USB charging mode to internal value */
1965 mode = toshiba->usbsc_mode_base;
1966 if (state == 0)
1967 mode |= SCI_USB_CHARGE_DISABLED;
1968 else if (state == 1)
1969 mode |= SCI_USB_CHARGE_ALTERNATE;
1970 else if (state == 2)
1971 mode |= SCI_USB_CHARGE_AUTO;
1972 else if (state == 3)
1973 mode |= SCI_USB_CHARGE_TYPICAL;
1974
1975 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
1976 if (ret)
1977 return ret;
1978
1979 return count;
1980 }
1981 static DEVICE_ATTR_RW(usb_sleep_charge);
1982
1983 static ssize_t sleep_functions_on_battery_show(struct device *dev,
1984 struct device_attribute *attr,
1985 char *buf)
1986 {
1987 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1988 u32 state;
1989 int bat_lvl;
1990 int status;
1991 int ret;
1992 int tmp;
1993
1994 ret = toshiba_sleep_functions_status_get(toshiba, &state);
1995 if (ret < 0)
1996 return ret;
1997
1998 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
1999 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2000 status = (tmp == 0x4) ? 1 : 0;
2001 /* Determine the battery level set */
2002 bat_lvl = state >> HCI_MISC_SHIFT;
2003
2004 return sprintf(buf, "%d %d\n", status, bat_lvl);
2005 }
2006
2007 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2008 struct device_attribute *attr,
2009 const char *buf, size_t count)
2010 {
2011 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2012 u32 status;
2013 int value;
2014 int ret;
2015 int tmp;
2016
2017 ret = kstrtoint(buf, 0, &value);
2018 if (ret)
2019 return ret;
2020
2021 /*
2022 * Set the status of the function:
2023 * 0 - Disabled
2024 * 1-100 - Enabled
2025 */
2026 if (value < 0 || value > 100)
2027 return -EINVAL;
2028
2029 if (value == 0) {
2030 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2031 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2032 } else {
2033 tmp = value << HCI_MISC_SHIFT;
2034 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2035 }
2036 ret = toshiba_sleep_functions_status_set(toshiba, status);
2037 if (ret < 0)
2038 return ret;
2039
2040 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2041
2042 return count;
2043 }
2044 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2045
2046 static ssize_t usb_rapid_charge_show(struct device *dev,
2047 struct device_attribute *attr, char *buf)
2048 {
2049 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2050 u32 state;
2051 int ret;
2052
2053 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2054 if (ret < 0)
2055 return ret;
2056
2057 return sprintf(buf, "%d\n", state);
2058 }
2059
2060 static ssize_t usb_rapid_charge_store(struct device *dev,
2061 struct device_attribute *attr,
2062 const char *buf, size_t count)
2063 {
2064 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2065 int state;
2066 int ret;
2067
2068 ret = kstrtoint(buf, 0, &state);
2069 if (ret)
2070 return ret;
2071 if (state != 0 && state != 1)
2072 return -EINVAL;
2073
2074 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2075 if (ret)
2076 return ret;
2077
2078 return count;
2079 }
2080 static DEVICE_ATTR_RW(usb_rapid_charge);
2081
2082 static ssize_t usb_sleep_music_show(struct device *dev,
2083 struct device_attribute *attr, char *buf)
2084 {
2085 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2086 u32 state;
2087 int ret;
2088
2089 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2090 if (ret < 0)
2091 return ret;
2092
2093 return sprintf(buf, "%d\n", state);
2094 }
2095
2096 static ssize_t usb_sleep_music_store(struct device *dev,
2097 struct device_attribute *attr,
2098 const char *buf, size_t count)
2099 {
2100 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2101 int state;
2102 int ret;
2103
2104 ret = kstrtoint(buf, 0, &state);
2105 if (ret)
2106 return ret;
2107 if (state != 0 && state != 1)
2108 return -EINVAL;
2109
2110 ret = toshiba_usb_sleep_music_set(toshiba, state);
2111 if (ret)
2112 return ret;
2113
2114 return count;
2115 }
2116 static DEVICE_ATTR_RW(usb_sleep_music);
2117
2118 static ssize_t kbd_function_keys_show(struct device *dev,
2119 struct device_attribute *attr, char *buf)
2120 {
2121 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2122 int mode;
2123 int ret;
2124
2125 ret = toshiba_function_keys_get(toshiba, &mode);
2126 if (ret < 0)
2127 return ret;
2128
2129 return sprintf(buf, "%d\n", mode);
2130 }
2131
2132 static ssize_t kbd_function_keys_store(struct device *dev,
2133 struct device_attribute *attr,
2134 const char *buf, size_t count)
2135 {
2136 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2137 int mode;
2138 int ret;
2139
2140 ret = kstrtoint(buf, 0, &mode);
2141 if (ret)
2142 return ret;
2143 /*
2144 * Check for the function keys mode where:
2145 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2146 * 1 - Special functions (Opposite of the above setting)
2147 */
2148 if (mode != 0 && mode != 1)
2149 return -EINVAL;
2150
2151 ret = toshiba_function_keys_set(toshiba, mode);
2152 if (ret)
2153 return ret;
2154
2155 pr_info("Reboot for changes to KBD Function Keys to take effect");
2156
2157 return count;
2158 }
2159 static DEVICE_ATTR_RW(kbd_function_keys);
2160
2161 static ssize_t panel_power_on_show(struct device *dev,
2162 struct device_attribute *attr, char *buf)
2163 {
2164 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2165 u32 state;
2166 int ret;
2167
2168 ret = toshiba_panel_power_on_get(toshiba, &state);
2169 if (ret < 0)
2170 return ret;
2171
2172 return sprintf(buf, "%d\n", state);
2173 }
2174
2175 static ssize_t panel_power_on_store(struct device *dev,
2176 struct device_attribute *attr,
2177 const char *buf, size_t count)
2178 {
2179 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2180 int state;
2181 int ret;
2182
2183 ret = kstrtoint(buf, 0, &state);
2184 if (ret)
2185 return ret;
2186 if (state != 0 && state != 1)
2187 return -EINVAL;
2188
2189 ret = toshiba_panel_power_on_set(toshiba, state);
2190 if (ret)
2191 return ret;
2192
2193 pr_info("Reboot for changes to Panel Power ON to take effect");
2194
2195 return count;
2196 }
2197 static DEVICE_ATTR_RW(panel_power_on);
2198
2199 static ssize_t usb_three_show(struct device *dev,
2200 struct device_attribute *attr, char *buf)
2201 {
2202 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2203 u32 state;
2204 int ret;
2205
2206 ret = toshiba_usb_three_get(toshiba, &state);
2207 if (ret < 0)
2208 return ret;
2209
2210 return sprintf(buf, "%d\n", state);
2211 }
2212
2213 static ssize_t usb_three_store(struct device *dev,
2214 struct device_attribute *attr,
2215 const char *buf, size_t count)
2216 {
2217 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2218 int state;
2219 int ret;
2220
2221 ret = kstrtoint(buf, 0, &state);
2222 if (ret)
2223 return ret;
2224 /*
2225 * Check for USB 3 mode where:
2226 * 0 - Disabled (Acts like a USB 2 port, saving power)
2227 * 1 - Enabled
2228 */
2229 if (state != 0 && state != 1)
2230 return -EINVAL;
2231
2232 ret = toshiba_usb_three_set(toshiba, state);
2233 if (ret)
2234 return ret;
2235
2236 pr_info("Reboot for changes to USB 3 to take effect");
2237
2238 return count;
2239 }
2240 static DEVICE_ATTR_RW(usb_three);
2241
2242 static struct attribute *toshiba_attributes[] = {
2243 &dev_attr_version.attr,
2244 &dev_attr_fan.attr,
2245 &dev_attr_kbd_backlight_mode.attr,
2246 &dev_attr_kbd_type.attr,
2247 &dev_attr_available_kbd_modes.attr,
2248 &dev_attr_kbd_backlight_timeout.attr,
2249 &dev_attr_touchpad.attr,
2250 &dev_attr_position.attr,
2251 &dev_attr_usb_sleep_charge.attr,
2252 &dev_attr_sleep_functions_on_battery.attr,
2253 &dev_attr_usb_rapid_charge.attr,
2254 &dev_attr_usb_sleep_music.attr,
2255 &dev_attr_kbd_function_keys.attr,
2256 &dev_attr_panel_power_on.attr,
2257 &dev_attr_usb_three.attr,
2258 NULL,
2259 };
2260
2261 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2262 struct attribute *attr, int idx)
2263 {
2264 struct device *dev = container_of(kobj, struct device, kobj);
2265 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2266 bool exists = true;
2267
2268 if (attr == &dev_attr_fan.attr)
2269 exists = (drv->fan_supported) ? true : false;
2270 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2271 exists = (drv->kbd_illum_supported) ? true : false;
2272 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2273 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2274 else if (attr == &dev_attr_touchpad.attr)
2275 exists = (drv->touchpad_supported) ? true : false;
2276 else if (attr == &dev_attr_position.attr)
2277 exists = (drv->accelerometer_supported) ? true : false;
2278 else if (attr == &dev_attr_usb_sleep_charge.attr)
2279 exists = (drv->usb_sleep_charge_supported) ? true : false;
2280 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2281 exists = (drv->usb_sleep_charge_supported) ? true : false;
2282 else if (attr == &dev_attr_usb_rapid_charge.attr)
2283 exists = (drv->usb_rapid_charge_supported) ? true : false;
2284 else if (attr == &dev_attr_usb_sleep_music.attr)
2285 exists = (drv->usb_sleep_music_supported) ? true : false;
2286 else if (attr == &dev_attr_kbd_function_keys.attr)
2287 exists = (drv->kbd_function_keys_supported) ? true : false;
2288 else if (attr == &dev_attr_panel_power_on.attr)
2289 exists = (drv->panel_power_on_supported) ? true : false;
2290 else if (attr == &dev_attr_usb_three.attr)
2291 exists = (drv->usb_three_supported) ? true : false;
2292
2293 return exists ? attr->mode : 0;
2294 }
2295
2296 static struct attribute_group toshiba_attr_group = {
2297 .is_visible = toshiba_sysfs_is_visible,
2298 .attrs = toshiba_attributes,
2299 };
2300
2301 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2302 {
2303 struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2304
2305 /* Update the sysfs entries */
2306 if (sysfs_update_group(&acpi_dev->dev.kobj,
2307 &toshiba_attr_group))
2308 pr_err("Unable to update sysfs entries\n");
2309
2310 /* Emulate the keyboard backlight event */
2311 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2312 dev_name(&acpi_dev->dev),
2313 0x92, 0);
2314 }
2315
2316 /*
2317 * Misc device
2318 */
2319 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2320 {
2321 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2322 regs->edx, regs->esi, regs->edi };
2323 u32 out[TCI_WORDS];
2324 acpi_status status;
2325
2326 status = tci_raw(toshiba_acpi, in, out);
2327 if (ACPI_FAILURE(status)) {
2328 pr_err("ACPI call to query SMM registers failed\n");
2329 return -EIO;
2330 }
2331
2332 /* Fillout the SMM struct with the TCI call results */
2333 regs->eax = out[0];
2334 regs->ebx = out[1];
2335 regs->ecx = out[2];
2336 regs->edx = out[3];
2337 regs->esi = out[4];
2338 regs->edi = out[5];
2339
2340 return 0;
2341 }
2342
2343 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2344 unsigned long arg)
2345 {
2346 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2347 SMMRegisters regs;
2348 int ret;
2349
2350 if (!argp)
2351 return -EINVAL;
2352
2353 switch (cmd) {
2354 case TOSH_SMM:
2355 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2356 return -EFAULT;
2357 ret = toshiba_acpi_smm_bridge(&regs);
2358 if (ret)
2359 return ret;
2360 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2361 return -EFAULT;
2362 break;
2363 case TOSHIBA_ACPI_SCI:
2364 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2365 return -EFAULT;
2366 /* Ensure we are being called with a SCI_{GET, SET} register */
2367 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2368 return -EINVAL;
2369 if (!sci_open(toshiba_acpi))
2370 return -EIO;
2371 ret = toshiba_acpi_smm_bridge(&regs);
2372 sci_close(toshiba_acpi);
2373 if (ret)
2374 return ret;
2375 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2376 return -EFAULT;
2377 break;
2378 default:
2379 return -EINVAL;
2380 }
2381
2382 return 0;
2383 }
2384
2385 static const struct file_operations toshiba_acpi_fops = {
2386 .owner = THIS_MODULE,
2387 .unlocked_ioctl = toshiba_acpi_ioctl,
2388 .llseek = noop_llseek,
2389 };
2390
2391 /*
2392 * WWAN RFKill handlers
2393 */
2394 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2395 {
2396 struct toshiba_acpi_dev *dev = data;
2397 int ret;
2398
2399 ret = toshiba_wireless_status(dev);
2400 if (ret)
2401 return ret;
2402
2403 if (!dev->killswitch)
2404 return 0;
2405
2406 return toshiba_wwan_set(dev, !blocked);
2407 }
2408
2409 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2410 {
2411 struct toshiba_acpi_dev *dev = data;
2412
2413 if (toshiba_wireless_status(dev))
2414 return;
2415
2416 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2417 }
2418
2419 static const struct rfkill_ops wwan_rfk_ops = {
2420 .set_block = toshiba_acpi_wwan_set_block,
2421 .poll = toshiba_acpi_wwan_poll,
2422 };
2423
2424 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2425 {
2426 int ret = toshiba_wireless_status(dev);
2427
2428 if (ret)
2429 return ret;
2430
2431 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2432 &dev->acpi_dev->dev,
2433 RFKILL_TYPE_WWAN,
2434 &wwan_rfk_ops,
2435 dev);
2436 if (!dev->wwan_rfk) {
2437 pr_err("Unable to allocate WWAN rfkill device\n");
2438 return -ENOMEM;
2439 }
2440
2441 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2442
2443 ret = rfkill_register(dev->wwan_rfk);
2444 if (ret) {
2445 pr_err("Unable to register WWAN rfkill device\n");
2446 rfkill_destroy(dev->wwan_rfk);
2447 }
2448
2449 return ret;
2450 }
2451
2452 /*
2453 * Hotkeys
2454 */
2455 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2456 {
2457 acpi_status status;
2458 u32 result;
2459
2460 status = acpi_evaluate_object(dev->acpi_dev->handle,
2461 "ENAB", NULL, NULL);
2462 if (ACPI_FAILURE(status))
2463 return -ENODEV;
2464
2465 /*
2466 * Enable the "Special Functions" mode only if they are
2467 * supported and if they are activated.
2468 */
2469 if (dev->kbd_function_keys_supported && dev->special_functions)
2470 result = hci_write(dev, HCI_HOTKEY_EVENT,
2471 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2472 else
2473 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2474
2475 if (result == TOS_FAILURE)
2476 return -EIO;
2477 else if (result == TOS_NOT_SUPPORTED)
2478 return -ENODEV;
2479
2480 return 0;
2481 }
2482
2483 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2484 struct serio *port)
2485 {
2486 if (str & I8042_STR_AUXDATA)
2487 return false;
2488
2489 if (unlikely(data == 0xe0))
2490 return false;
2491
2492 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2493 schedule_work(&toshiba_acpi->hotkey_work);
2494 return true;
2495 }
2496
2497 return false;
2498 }
2499
2500 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2501 {
2502 acpi_handle ec_handle = ec_get_handle();
2503 acpi_status status;
2504
2505 if (!ec_handle)
2506 return;
2507
2508 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2509 if (ACPI_FAILURE(status))
2510 pr_err("ACPI NTFY method execution failed\n");
2511 }
2512
2513 /*
2514 * Returns hotkey scancode, or < 0 on failure.
2515 */
2516 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2517 {
2518 unsigned long long value;
2519 acpi_status status;
2520
2521 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2522 NULL, &value);
2523 if (ACPI_FAILURE(status)) {
2524 pr_err("ACPI INFO method execution failed\n");
2525 return -EIO;
2526 }
2527
2528 return value;
2529 }
2530
2531 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2532 int scancode)
2533 {
2534 if (scancode == 0x100)
2535 return;
2536
2537 /* Act on key press; ignore key release */
2538 if (scancode & 0x80)
2539 return;
2540
2541 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2542 pr_info("Unknown key %x\n", scancode);
2543 }
2544
2545 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2546 {
2547 if (dev->info_supported) {
2548 int scancode = toshiba_acpi_query_hotkey(dev);
2549
2550 if (scancode < 0) {
2551 pr_err("Failed to query hotkey event\n");
2552 } else if (scancode != 0) {
2553 toshiba_acpi_report_hotkey(dev, scancode);
2554 dev->key_event_valid = 1;
2555 dev->last_key_event = scancode;
2556 }
2557 } else if (dev->system_event_supported) {
2558 u32 result;
2559 u32 value;
2560 int retries = 3;
2561
2562 do {
2563 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2564 switch (result) {
2565 case TOS_SUCCESS:
2566 toshiba_acpi_report_hotkey(dev, (int)value);
2567 dev->key_event_valid = 1;
2568 dev->last_key_event = value;
2569 break;
2570 case TOS_NOT_SUPPORTED:
2571 /*
2572 * This is a workaround for an unresolved
2573 * issue on some machines where system events
2574 * sporadically become disabled.
2575 */
2576 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2577 if (result == TOS_SUCCESS)
2578 pr_notice("Re-enabled hotkeys\n");
2579 /* Fall through */
2580 default:
2581 retries--;
2582 break;
2583 }
2584 } while (retries && result != TOS_FIFO_EMPTY);
2585 }
2586 }
2587
2588 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2589 {
2590 const struct key_entry *keymap = toshiba_acpi_keymap;
2591 acpi_handle ec_handle;
2592 int error;
2593
2594 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2595 pr_info("WMI event detected, hotkeys will not be monitored\n");
2596 return 0;
2597 }
2598
2599 error = toshiba_acpi_enable_hotkeys(dev);
2600 if (error)
2601 return error;
2602
2603 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2604 pr_notice("Unable to query Hotkey Event Type\n");
2605
2606 dev->hotkey_dev = input_allocate_device();
2607 if (!dev->hotkey_dev)
2608 return -ENOMEM;
2609
2610 dev->hotkey_dev->name = "Toshiba input device";
2611 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2612 dev->hotkey_dev->id.bustype = BUS_HOST;
2613
2614 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2615 !dev->kbd_function_keys_supported)
2616 keymap = toshiba_acpi_keymap;
2617 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2618 dev->kbd_function_keys_supported)
2619 keymap = toshiba_acpi_alt_keymap;
2620 else
2621 pr_info("Unknown event type received %x\n",
2622 dev->hotkey_event_type);
2623 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2624 if (error)
2625 goto err_free_dev;
2626
2627 /*
2628 * For some machines the SCI responsible for providing hotkey
2629 * notification doesn't fire. We can trigger the notification
2630 * whenever the Fn key is pressed using the NTFY method, if
2631 * supported, so if it's present set up an i8042 key filter
2632 * for this purpose.
2633 */
2634 ec_handle = ec_get_handle();
2635 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2636 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2637
2638 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2639 if (error) {
2640 pr_err("Error installing key filter\n");
2641 goto err_free_keymap;
2642 }
2643
2644 dev->ntfy_supported = 1;
2645 }
2646
2647 /*
2648 * Determine hotkey query interface. Prefer using the INFO
2649 * method when it is available.
2650 */
2651 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2652 dev->info_supported = 1;
2653 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2654 dev->system_event_supported = 1;
2655
2656 if (!dev->info_supported && !dev->system_event_supported) {
2657 pr_warn("No hotkey query interface found\n");
2658 goto err_remove_filter;
2659 }
2660
2661 error = input_register_device(dev->hotkey_dev);
2662 if (error) {
2663 pr_info("Unable to register input device\n");
2664 goto err_remove_filter;
2665 }
2666
2667 return 0;
2668
2669 err_remove_filter:
2670 if (dev->ntfy_supported)
2671 i8042_remove_filter(toshiba_acpi_i8042_filter);
2672 err_free_keymap:
2673 sparse_keymap_free(dev->hotkey_dev);
2674 err_free_dev:
2675 input_free_device(dev->hotkey_dev);
2676 dev->hotkey_dev = NULL;
2677 return error;
2678 }
2679
2680 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2681 {
2682 struct backlight_properties props;
2683 int brightness;
2684 int ret;
2685
2686 /*
2687 * Some machines don't support the backlight methods at all, and
2688 * others support it read-only. Either of these is pretty useless,
2689 * so only register the backlight device if the backlight method
2690 * supports both reads and writes.
2691 */
2692 brightness = __get_lcd_brightness(dev);
2693 if (brightness < 0)
2694 return 0;
2695 /*
2696 * If transflective backlight is supported and the brightness is zero
2697 * (lowest brightness level), the set_lcd_brightness function will
2698 * activate the transflective backlight, making the LCD appear to be
2699 * turned off, simply increment the brightness level to avoid that.
2700 */
2701 if (dev->tr_backlight_supported && brightness == 0)
2702 brightness++;
2703 ret = set_lcd_brightness(dev, brightness);
2704 if (ret) {
2705 pr_debug("Backlight method is read-only, disabling backlight support\n");
2706 return 0;
2707 }
2708
2709 /*
2710 * Tell acpi-video-detect code to prefer vendor backlight on all
2711 * systems with transflective backlight and on dmi matched systems.
2712 */
2713 if (dev->tr_backlight_supported ||
2714 dmi_check_system(toshiba_vendor_backlight_dmi))
2715 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2716
2717 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2718 return 0;
2719
2720 memset(&props, 0, sizeof(props));
2721 props.type = BACKLIGHT_PLATFORM;
2722 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2723
2724 /* Adding an extra level and having 0 change to transflective mode */
2725 if (dev->tr_backlight_supported)
2726 props.max_brightness++;
2727
2728 dev->backlight_dev = backlight_device_register("toshiba",
2729 &dev->acpi_dev->dev,
2730 dev,
2731 &toshiba_backlight_data,
2732 &props);
2733 if (IS_ERR(dev->backlight_dev)) {
2734 ret = PTR_ERR(dev->backlight_dev);
2735 pr_err("Could not register toshiba backlight device\n");
2736 dev->backlight_dev = NULL;
2737 return ret;
2738 }
2739
2740 dev->backlight_dev->props.brightness = brightness;
2741 return 0;
2742 }
2743
2744 static void print_supported_features(struct toshiba_acpi_dev *dev)
2745 {
2746 pr_info("Supported laptop features:");
2747
2748 if (dev->hotkey_dev)
2749 pr_cont(" hotkeys");
2750 if (dev->backlight_dev)
2751 pr_cont(" backlight");
2752 if (dev->video_supported)
2753 pr_cont(" video-out");
2754 if (dev->fan_supported)
2755 pr_cont(" fan");
2756 if (dev->tr_backlight_supported)
2757 pr_cont(" transflective-backlight");
2758 if (dev->illumination_supported)
2759 pr_cont(" illumination");
2760 if (dev->kbd_illum_supported)
2761 pr_cont(" keyboard-backlight");
2762 if (dev->touchpad_supported)
2763 pr_cont(" touchpad");
2764 if (dev->eco_supported)
2765 pr_cont(" eco-led");
2766 if (dev->accelerometer_supported)
2767 pr_cont(" accelerometer-axes");
2768 if (dev->usb_sleep_charge_supported)
2769 pr_cont(" usb-sleep-charge");
2770 if (dev->usb_rapid_charge_supported)
2771 pr_cont(" usb-rapid-charge");
2772 if (dev->usb_sleep_music_supported)
2773 pr_cont(" usb-sleep-music");
2774 if (dev->kbd_function_keys_supported)
2775 pr_cont(" special-function-keys");
2776 if (dev->panel_power_on_supported)
2777 pr_cont(" panel-power-on");
2778 if (dev->usb_three_supported)
2779 pr_cont(" usb3");
2780 if (dev->wwan_supported)
2781 pr_cont(" wwan");
2782
2783 pr_cont("\n");
2784 }
2785
2786 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2787 {
2788 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2789
2790 misc_deregister(&dev->miscdev);
2791
2792 remove_toshiba_proc_entries(dev);
2793
2794 if (dev->sysfs_created)
2795 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
2796 &toshiba_attr_group);
2797
2798 if (dev->ntfy_supported) {
2799 i8042_remove_filter(toshiba_acpi_i8042_filter);
2800 cancel_work_sync(&dev->hotkey_work);
2801 }
2802
2803 if (dev->hotkey_dev) {
2804 input_unregister_device(dev->hotkey_dev);
2805 sparse_keymap_free(dev->hotkey_dev);
2806 }
2807
2808 backlight_device_unregister(dev->backlight_dev);
2809
2810 if (dev->illumination_led_registered)
2811 led_classdev_unregister(&dev->led_dev);
2812
2813 if (dev->kbd_led_registered)
2814 led_classdev_unregister(&dev->kbd_led);
2815
2816 if (dev->eco_led_registered)
2817 led_classdev_unregister(&dev->eco_led);
2818
2819 if (dev->wwan_rfk) {
2820 rfkill_unregister(dev->wwan_rfk);
2821 rfkill_destroy(dev->wwan_rfk);
2822 }
2823
2824 if (toshiba_acpi)
2825 toshiba_acpi = NULL;
2826
2827 kfree(dev);
2828
2829 return 0;
2830 }
2831
2832 static const char *find_hci_method(acpi_handle handle)
2833 {
2834 if (acpi_has_method(handle, "GHCI"))
2835 return "GHCI";
2836
2837 if (acpi_has_method(handle, "SPFC"))
2838 return "SPFC";
2839
2840 return NULL;
2841 }
2842
2843 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
2844 {
2845 struct toshiba_acpi_dev *dev;
2846 const char *hci_method;
2847 u32 dummy;
2848 int ret = 0;
2849
2850 if (toshiba_acpi)
2851 return -EBUSY;
2852
2853 pr_info("Toshiba Laptop ACPI Extras version %s\n",
2854 TOSHIBA_ACPI_VERSION);
2855
2856 hci_method = find_hci_method(acpi_dev->handle);
2857 if (!hci_method) {
2858 pr_err("HCI interface not found\n");
2859 return -ENODEV;
2860 }
2861
2862 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
2863 if (!dev)
2864 return -ENOMEM;
2865 dev->acpi_dev = acpi_dev;
2866 dev->method_hci = hci_method;
2867 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
2868 dev->miscdev.name = "toshiba_acpi";
2869 dev->miscdev.fops = &toshiba_acpi_fops;
2870
2871 ret = misc_register(&dev->miscdev);
2872 if (ret) {
2873 pr_err("Failed to register miscdevice\n");
2874 kfree(dev);
2875 return ret;
2876 }
2877
2878 acpi_dev->driver_data = dev;
2879 dev_set_drvdata(&acpi_dev->dev, dev);
2880
2881 /* Query the BIOS for supported features */
2882
2883 /*
2884 * The "Special Functions" are always supported by the laptops
2885 * with the new keyboard layout, query for its presence to help
2886 * determine the keymap layout to use.
2887 */
2888 ret = toshiba_function_keys_get(dev, &dev->special_functions);
2889 dev->kbd_function_keys_supported = !ret;
2890
2891 dev->hotkey_event_type = 0;
2892 if (toshiba_acpi_setup_keyboard(dev))
2893 pr_info("Unable to activate hotkeys\n");
2894
2895 /* Determine whether or not BIOS supports transflective backlight */
2896 ret = get_tr_backlight_status(dev, &dummy);
2897 dev->tr_backlight_supported = !ret;
2898
2899 ret = toshiba_acpi_setup_backlight(dev);
2900 if (ret)
2901 goto error;
2902
2903 toshiba_illumination_available(dev);
2904 if (dev->illumination_supported) {
2905 dev->led_dev.name = "toshiba::illumination";
2906 dev->led_dev.max_brightness = 1;
2907 dev->led_dev.brightness_set = toshiba_illumination_set;
2908 dev->led_dev.brightness_get = toshiba_illumination_get;
2909 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
2910 dev->illumination_led_registered = true;
2911 }
2912
2913 toshiba_eco_mode_available(dev);
2914 if (dev->eco_supported) {
2915 dev->eco_led.name = "toshiba::eco_mode";
2916 dev->eco_led.max_brightness = 1;
2917 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
2918 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
2919 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
2920 dev->eco_led_registered = true;
2921 }
2922
2923 toshiba_kbd_illum_available(dev);
2924 /*
2925 * Only register the LED if KBD illumination is supported
2926 * and the keyboard backlight operation mode is set to FN-Z
2927 */
2928 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
2929 dev->kbd_led.name = "toshiba::kbd_backlight";
2930 dev->kbd_led.max_brightness = 1;
2931 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
2932 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
2933 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
2934 dev->kbd_led_registered = true;
2935 }
2936
2937 ret = toshiba_touchpad_get(dev, &dummy);
2938 dev->touchpad_supported = !ret;
2939
2940 toshiba_accelerometer_available(dev);
2941
2942 toshiba_usb_sleep_charge_available(dev);
2943
2944 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
2945 dev->usb_rapid_charge_supported = !ret;
2946
2947 ret = toshiba_usb_sleep_music_get(dev, &dummy);
2948 dev->usb_sleep_music_supported = !ret;
2949
2950 ret = toshiba_panel_power_on_get(dev, &dummy);
2951 dev->panel_power_on_supported = !ret;
2952
2953 ret = toshiba_usb_three_get(dev, &dummy);
2954 dev->usb_three_supported = !ret;
2955
2956 ret = get_video_status(dev, &dummy);
2957 dev->video_supported = !ret;
2958
2959 ret = get_fan_status(dev, &dummy);
2960 dev->fan_supported = !ret;
2961
2962 toshiba_wwan_available(dev);
2963 if (dev->wwan_supported)
2964 toshiba_acpi_setup_wwan_rfkill(dev);
2965
2966 print_supported_features(dev);
2967
2968 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
2969 &toshiba_attr_group);
2970 if (ret) {
2971 dev->sysfs_created = 0;
2972 goto error;
2973 }
2974 dev->sysfs_created = !ret;
2975
2976 create_toshiba_proc_entries(dev);
2977
2978 toshiba_acpi = dev;
2979
2980 return 0;
2981
2982 error:
2983 toshiba_acpi_remove(acpi_dev);
2984 return ret;
2985 }
2986
2987 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
2988 {
2989 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2990
2991 switch (event) {
2992 case 0x80: /* Hotkeys and some system events */
2993 /*
2994 * Machines with this WMI GUID aren't supported due to bugs in
2995 * their AML.
2996 *
2997 * Return silently to avoid triggering a netlink event.
2998 */
2999 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3000 return;
3001 toshiba_acpi_process_hotkeys(dev);
3002 break;
3003 case 0x81: /* Dock events */
3004 case 0x82:
3005 case 0x83:
3006 pr_info("Dock event received %x\n", event);
3007 break;
3008 case 0x88: /* Thermal events */
3009 pr_info("Thermal event received\n");
3010 break;
3011 case 0x8f: /* LID closed */
3012 case 0x90: /* LID is closed and Dock has been ejected */
3013 break;
3014 case 0x8c: /* SATA power events */
3015 case 0x8b:
3016 pr_info("SATA power event received %x\n", event);
3017 break;
3018 case 0x92: /* Keyboard backlight mode changed */
3019 toshiba_acpi->kbd_event_generated = true;
3020 /* Update sysfs entries */
3021 if (sysfs_update_group(&acpi_dev->dev.kobj,
3022 &toshiba_attr_group))
3023 pr_err("Unable to update sysfs entries\n");
3024 break;
3025 case 0x85: /* Unknown */
3026 case 0x8d: /* Unknown */
3027 case 0x8e: /* Unknown */
3028 case 0x94: /* Unknown */
3029 case 0x95: /* Unknown */
3030 default:
3031 pr_info("Unknown event received %x\n", event);
3032 break;
3033 }
3034
3035 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3036 dev_name(&acpi_dev->dev),
3037 event, (event == 0x80) ?
3038 dev->last_key_event : 0);
3039 }
3040
3041 #ifdef CONFIG_PM_SLEEP
3042 static int toshiba_acpi_suspend(struct device *device)
3043 {
3044 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3045
3046 if (dev->hotkey_dev) {
3047 u32 result;
3048
3049 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3050 if (result != TOS_SUCCESS)
3051 pr_info("Unable to disable hotkeys\n");
3052 }
3053
3054 return 0;
3055 }
3056
3057 static int toshiba_acpi_resume(struct device *device)
3058 {
3059 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3060
3061 if (dev->hotkey_dev) {
3062 if (toshiba_acpi_enable_hotkeys(dev))
3063 pr_info("Unable to re-enable hotkeys\n");
3064 }
3065
3066 if (dev->wwan_rfk) {
3067 if (!toshiba_wireless_status(dev))
3068 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3069 }
3070
3071 return 0;
3072 }
3073 #endif
3074
3075 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3076 toshiba_acpi_suspend, toshiba_acpi_resume);
3077
3078 static struct acpi_driver toshiba_acpi_driver = {
3079 .name = "Toshiba ACPI driver",
3080 .owner = THIS_MODULE,
3081 .ids = toshiba_device_ids,
3082 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3083 .ops = {
3084 .add = toshiba_acpi_add,
3085 .remove = toshiba_acpi_remove,
3086 .notify = toshiba_acpi_notify,
3087 },
3088 .drv.pm = &toshiba_acpi_pm,
3089 };
3090
3091 static int __init toshiba_acpi_init(void)
3092 {
3093 int ret;
3094
3095 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3096 if (!toshiba_proc_dir) {
3097 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3098 return -ENODEV;
3099 }
3100
3101 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3102 if (ret) {
3103 pr_err("Failed to register ACPI driver: %d\n", ret);
3104 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3105 }
3106
3107 return ret;
3108 }
3109
3110 static void __exit toshiba_acpi_exit(void)
3111 {
3112 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3113 if (toshiba_proc_dir)
3114 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3115 }
3116
3117 module_init(toshiba_acpi_init);
3118 module_exit(toshiba_acpi_exit);
Linux kernel - Deliverables
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