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