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toshiba_acpi: Remove unnecessary checks and returns in HCI/SCI functions
[linux/fpc-iii.git] / drivers / platform / x86 / toshiba_acpi.c
blobc18469903eeed308c843d0774e092e3c00c96269
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 "0.22"
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 0x09
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
202 bool kbd_led_registered;
203 bool illumination_led_registered;
204 bool eco_led_registered;
205 };
206
207 static struct toshiba_acpi_dev *toshiba_acpi;
208
209 static const struct acpi_device_id toshiba_device_ids[] = {
210 {"TOS6200", 0},
211 {"TOS6207", 0},
212 {"TOS6208", 0},
213 {"TOS1900", 0},
214 {"", 0},
215 };
216 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
217
218 static const struct key_entry toshiba_acpi_keymap[] = {
219 { KE_KEY, 0x9e, { KEY_RFKILL } },
220 { KE_KEY, 0x101, { KEY_MUTE } },
221 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
222 { KE_KEY, 0x103, { KEY_ZOOMIN } },
223 { KE_KEY, 0x10f, { KEY_TAB } },
224 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
225 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
226 { KE_KEY, 0x13b, { KEY_COFFEE } },
227 { KE_KEY, 0x13c, { KEY_BATTERY } },
228 { KE_KEY, 0x13d, { KEY_SLEEP } },
229 { KE_KEY, 0x13e, { KEY_SUSPEND } },
230 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
231 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
232 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
233 { KE_KEY, 0x142, { KEY_WLAN } },
234 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
235 { KE_KEY, 0x17f, { KEY_FN } },
236 { KE_KEY, 0xb05, { KEY_PROG2 } },
237 { KE_KEY, 0xb06, { KEY_WWW } },
238 { KE_KEY, 0xb07, { KEY_MAIL } },
239 { KE_KEY, 0xb30, { KEY_STOP } },
240 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
241 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
242 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
243 { KE_KEY, 0xb5a, { KEY_MEDIA } },
244 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
245 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
246 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
247 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
248 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
249 { KE_END, 0 },
250 };
251
252 static const struct key_entry toshiba_acpi_alt_keymap[] = {
253 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
254 { KE_KEY, 0x103, { KEY_ZOOMIN } },
255 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
256 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
257 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
258 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
259 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
260 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
261 { KE_KEY, 0x157, { KEY_MUTE } },
262 { KE_KEY, 0x158, { KEY_WLAN } },
263 { KE_END, 0 },
264 };
265
266 /*
267 * List of models which have a broken acpi-video backlight interface and thus
268 * need to use the toshiba (vendor) interface instead.
269 */
270 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
271 {}
272 };
273
274 /*
275 * Utility
276 */
277
278 static inline void _set_bit(u32 *word, u32 mask, int value)
279 {
280 *word = (*word & ~mask) | (mask * value);
281 }
282
283 /*
284 * ACPI interface wrappers
285 */
286
287 static int write_acpi_int(const char *methodName, int val)
288 {
289 acpi_status status;
290
291 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
292 return (status == AE_OK) ? 0 : -EIO;
293 }
294
295 /*
296 * Perform a raw configuration call. Here we don't care about input or output
297 * buffer format.
298 */
299 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
300 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
301 {
302 struct acpi_object_list params;
303 union acpi_object in_objs[TCI_WORDS];
304 struct acpi_buffer results;
305 union acpi_object out_objs[TCI_WORDS + 1];
306 acpi_status status;
307 int i;
308
309 params.count = TCI_WORDS;
310 params.pointer = in_objs;
311 for (i = 0; i < TCI_WORDS; ++i) {
312 in_objs[i].type = ACPI_TYPE_INTEGER;
313 in_objs[i].integer.value = in[i];
314 }
315
316 results.length = sizeof(out_objs);
317 results.pointer = out_objs;
318
319 status = acpi_evaluate_object(dev->acpi_dev->handle,
320 (char *)dev->method_hci, &params,
321 &results);
322 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
323 for (i = 0; i < out_objs->package.count; ++i)
324 out[i] = out_objs->package.elements[i].integer.value;
325 }
326
327 return status;
328 }
329
330 /*
331 * Common hci tasks
332 *
333 * In addition to the ACPI status, the HCI system returns a result which
334 * may be useful (such as "not supported").
335 */
336
337 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
338 {
339 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
340 u32 out[TCI_WORDS];
341 acpi_status status = tci_raw(dev, in, out);
342
343 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
344 }
345
346 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
347 {
348 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
349 u32 out[TCI_WORDS];
350 acpi_status status = tci_raw(dev, in, out);
351
352 if (ACPI_FAILURE(status))
353 return TOS_FAILURE;
354
355 *out1 = out[2];
356
357 return out[0];
358 }
359
360 /*
361 * Common sci tasks
362 */
363
364 static int sci_open(struct toshiba_acpi_dev *dev)
365 {
366 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
367 u32 out[TCI_WORDS];
368 acpi_status status;
369
370 status = tci_raw(dev, in, out);
371 if (ACPI_FAILURE(status)) {
372 pr_err("ACPI call to open SCI failed\n");
373 return 0;
374 }
375
376 if (out[0] == TOS_OPEN_CLOSE_OK) {
377 return 1;
378 } else if (out[0] == TOS_ALREADY_OPEN) {
379 pr_info("Toshiba SCI already opened\n");
380 return 1;
381 } else if (out[0] == TOS_NOT_SUPPORTED) {
382 /*
383 * Some BIOSes do not have the SCI open/close functions
384 * implemented and return 0x8000 (Not Supported), failing to
385 * register some supported features.
386 *
387 * Simply return 1 if we hit those affected laptops to make the
388 * supported features work.
389 *
390 * In the case that some laptops really do not support the SCI,
391 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
392 * and thus, not registering support for the queried feature.
393 */
394 return 1;
395 } else if (out[0] == TOS_NOT_PRESENT) {
396 pr_info("Toshiba SCI is not present\n");
397 }
398
399 return 0;
400 }
401
402 static void sci_close(struct toshiba_acpi_dev *dev)
403 {
404 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
405 u32 out[TCI_WORDS];
406 acpi_status status;
407
408 status = tci_raw(dev, in, out);
409 if (ACPI_FAILURE(status)) {
410 pr_err("ACPI call to close SCI failed\n");
411 return;
412 }
413
414 if (out[0] == TOS_OPEN_CLOSE_OK)
415 return;
416 else if (out[0] == TOS_NOT_OPENED)
417 pr_info("Toshiba SCI not opened\n");
418 else if (out[0] == TOS_NOT_PRESENT)
419 pr_info("Toshiba SCI is not present\n");
420 }
421
422 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
423 {
424 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
425 u32 out[TCI_WORDS];
426 acpi_status status = tci_raw(dev, in, out);
427
428 if (ACPI_FAILURE(status))
429 return TOS_FAILURE;
430
431 *out1 = out[2];
432
433 return out[0];
434 }
435
436 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
437 {
438 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
439 u32 out[TCI_WORDS];
440 acpi_status status = tci_raw(dev, in, out);
441
442 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
443 }
444
445 /* Illumination support */
446 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
447 {
448 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
449 u32 out[TCI_WORDS];
450 acpi_status status;
451
452 dev->illumination_supported = 0;
453 dev->illumination_led_registered = false;
454
455 if (!sci_open(dev))
456 return;
457
458 status = tci_raw(dev, in, out);
459 sci_close(dev);
460 if (ACPI_FAILURE(status))
461 pr_err("ACPI call to query Illumination support failed\n");
462 else if (out[0] == TOS_SUCCESS)
463 dev->illumination_supported = 1;
464 }
465
466 static void toshiba_illumination_set(struct led_classdev *cdev,
467 enum led_brightness brightness)
468 {
469 struct toshiba_acpi_dev *dev = container_of(cdev,
470 struct toshiba_acpi_dev, led_dev);
471 u32 result;
472 u32 state;
473
474 /* First request : initialize communication. */
475 if (!sci_open(dev))
476 return;
477
478 /* Switch the illumination on/off */
479 state = brightness ? 1 : 0;
480 result = sci_write(dev, SCI_ILLUMINATION, state);
481 sci_close(dev);
482 if (result == TOS_FAILURE)
483 pr_err("ACPI call for illumination failed\n");
484 }
485
486 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
487 {
488 struct toshiba_acpi_dev *dev = container_of(cdev,
489 struct toshiba_acpi_dev, led_dev);
490 u32 state, result;
491
492 /* First request : initialize communication. */
493 if (!sci_open(dev))
494 return LED_OFF;
495
496 /* Check the illumination */
497 result = sci_read(dev, SCI_ILLUMINATION, &state);
498 sci_close(dev);
499 if (result == TOS_FAILURE) {
500 pr_err("ACPI call for illumination failed\n");
501 return LED_OFF;
502 } else if (result != TOS_SUCCESS) {
503 return LED_OFF;
504 }
505
506 return state ? LED_FULL : LED_OFF;
507 }
508
509 /* KBD Illumination */
510 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
511 {
512 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
513 u32 out[TCI_WORDS];
514 acpi_status status;
515
516 dev->kbd_illum_supported = 0;
517 dev->kbd_led_registered = false;
518
519 if (!sci_open(dev))
520 return;
521
522 status = tci_raw(dev, in, out);
523 sci_close(dev);
524 if (ACPI_FAILURE(status)) {
525 pr_err("ACPI call to query kbd illumination support failed\n");
526 } else if (out[0] == TOS_SUCCESS) {
527 /*
528 * Check for keyboard backlight timeout max value,
529 * previous kbd backlight implementation set this to
530 * 0x3c0003, and now the new implementation set this
531 * to 0x3c001a, use this to distinguish between them.
532 */
533 if (out[3] == SCI_KBD_TIME_MAX)
534 dev->kbd_type = 2;
535 else
536 dev->kbd_type = 1;
537 /* Get the current keyboard backlight mode */
538 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
539 /* Get the current time (1-60 seconds) */
540 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
541 /* Flag as supported */
542 dev->kbd_illum_supported = 1;
543 }
544 }
545
546 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
547 {
548 u32 result;
549
550 if (!sci_open(dev))
551 return -EIO;
552
553 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
554 sci_close(dev);
555 if (result == TOS_FAILURE)
556 pr_err("ACPI call to set KBD backlight status failed\n");
557 else if (result == TOS_NOT_SUPPORTED)
558 return -ENODEV;
559
560 return result == TOS_SUCCESS ? 0 : -EIO;
561 }
562
563 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
564 {
565 u32 result;
566
567 if (!sci_open(dev))
568 return -EIO;
569
570 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
571 sci_close(dev);
572 if (result == TOS_FAILURE)
573 pr_err("ACPI call to get KBD backlight status failed\n");
574 else if (result == TOS_NOT_SUPPORTED)
575 return -ENODEV;
576
577 return result == TOS_SUCCESS ? 0 : -EIO;
578 }
579
580 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
581 {
582 struct toshiba_acpi_dev *dev = container_of(cdev,
583 struct toshiba_acpi_dev, kbd_led);
584 u32 result;
585 u32 state;
586
587 /* Check the keyboard backlight state */
588 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
589 if (result == TOS_FAILURE) {
590 pr_err("ACPI call to get the keyboard backlight failed\n");
591 return LED_OFF;
592 } else if (result != TOS_SUCCESS) {
593 return LED_OFF;
594 }
595
596 return state ? LED_FULL : LED_OFF;
597 }
598
599 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
600 enum led_brightness brightness)
601 {
602 struct toshiba_acpi_dev *dev = container_of(cdev,
603 struct toshiba_acpi_dev, kbd_led);
604 u32 result;
605 u32 state;
606
607 /* Set the keyboard backlight state */
608 state = brightness ? 1 : 0;
609 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
610 if (result == TOS_FAILURE)
611 pr_err("ACPI call to set KBD Illumination mode failed\n");
612 }
613
614 /* TouchPad support */
615 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
616 {
617 u32 result;
618
619 if (!sci_open(dev))
620 return -EIO;
621
622 result = sci_write(dev, SCI_TOUCHPAD, state);
623 sci_close(dev);
624 if (result == TOS_FAILURE)
625 pr_err("ACPI call to set the touchpad failed\n");
626 else if (result == TOS_NOT_SUPPORTED)
627 return -ENODEV;
628
629 return result == TOS_SUCCESS ? 0 : -EIO;
630 }
631
632 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
633 {
634 u32 result;
635
636 if (!sci_open(dev))
637 return -EIO;
638
639 result = sci_read(dev, SCI_TOUCHPAD, state);
640 sci_close(dev);
641 if (result == TOS_FAILURE)
642 pr_err("ACPI call to query the touchpad failed\n");
643 else if (result == TOS_NOT_SUPPORTED)
644 return -ENODEV;
645
646 return result == TOS_SUCCESS ? 0 : -EIO;
647 }
648
649 /* Eco Mode support */
650 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
651 {
652 acpi_status status;
653 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
654 u32 out[TCI_WORDS];
655
656 dev->eco_supported = 0;
657 dev->eco_led_registered = false;
658
659 status = tci_raw(dev, in, out);
660 if (ACPI_FAILURE(status)) {
661 pr_err("ACPI call to get ECO led failed\n");
662 } else if (out[0] == TOS_INPUT_DATA_ERROR) {
663 /*
664 * If we receive 0x8300 (Input Data Error), it means that the
665 * LED device is present, but that we just screwed the input
666 * parameters.
667 *
668 * Let's query the status of the LED to see if we really have a
669 * success response, indicating the actual presense of the LED,
670 * bail out otherwise.
671 */
672 in[3] = 1;
673 status = tci_raw(dev, in, out);
674 if (ACPI_FAILURE(status))
675 pr_err("ACPI call to get ECO led failed\n");
676 else if (out[0] == TOS_SUCCESS)
677 dev->eco_supported = 1;
678 }
679 }
680
681 static enum led_brightness
682 toshiba_eco_mode_get_status(struct led_classdev *cdev)
683 {
684 struct toshiba_acpi_dev *dev = container_of(cdev,
685 struct toshiba_acpi_dev, eco_led);
686 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
687 u32 out[TCI_WORDS];
688 acpi_status status;
689
690 status = tci_raw(dev, in, out);
691 if (ACPI_FAILURE(status)) {
692 pr_err("ACPI call to get ECO led failed\n");
693 return LED_OFF;
694 } else if (out[0] != TOS_SUCCESS) {
695 return LED_OFF;
696 }
697
698 return out[2] ? LED_FULL : LED_OFF;
699 }
700
701 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
702 enum led_brightness brightness)
703 {
704 struct toshiba_acpi_dev *dev = container_of(cdev,
705 struct toshiba_acpi_dev, eco_led);
706 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
707 u32 out[TCI_WORDS];
708 acpi_status status;
709
710 /* Switch the Eco Mode led on/off */
711 in[2] = (brightness) ? 1 : 0;
712 status = tci_raw(dev, in, out);
713 if (ACPI_FAILURE(status))
714 pr_err("ACPI call to set ECO led failed\n");
715 }
716
717 /* Accelerometer support */
718 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
719 {
720 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
721 u32 out[TCI_WORDS];
722 acpi_status status;
723
724 dev->accelerometer_supported = 0;
725
726 /*
727 * Check if the accelerometer call exists,
728 * this call also serves as initialization
729 */
730 status = tci_raw(dev, in, out);
731 if (ACPI_FAILURE(status))
732 pr_err("ACPI call to query the accelerometer failed\n");
733 else if (out[0] == TOS_SUCCESS)
734 dev->accelerometer_supported = 1;
735 }
736
737 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
738 u32 *xy, u32 *z)
739 {
740 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
741 u32 out[TCI_WORDS];
742 acpi_status status;
743
744 /* Check the Accelerometer status */
745 status = tci_raw(dev, in, out);
746 if (ACPI_FAILURE(status)) {
747 pr_err("ACPI call to query the accelerometer failed\n");
748 return -EIO;
749 } else if (out[0] == TOS_NOT_SUPPORTED) {
750 return -ENODEV;
751 } else if (out[0] == TOS_SUCCESS) {
752 *xy = out[2];
753 *z = out[4];
754 return 0;
755 }
756
757 return -EIO;
758 }
759
760 /* Sleep (Charge and Music) utilities support */
761 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
762 {
763 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
764 u32 out[TCI_WORDS];
765 acpi_status status;
766
767 dev->usb_sleep_charge_supported = 0;
768
769 if (!sci_open(dev))
770 return;
771
772 status = tci_raw(dev, in, out);
773 if (ACPI_FAILURE(status)) {
774 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
775 sci_close(dev);
776 return;
777 } else if (out[0] == TOS_NOT_SUPPORTED) {
778 sci_close(dev);
779 return;
780 } else if (out[0] == TOS_SUCCESS) {
781 dev->usbsc_mode_base = out[4];
782 }
783
784 in[5] = SCI_USB_CHARGE_BAT_LVL;
785 status = tci_raw(dev, in, out);
786 sci_close(dev);
787 if (ACPI_FAILURE(status)) {
788 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
789 } else if (out[0] == TOS_SUCCESS) {
790 dev->usbsc_bat_level = out[2];
791 /* Flag as supported */
792 dev->usb_sleep_charge_supported = 1;
793 }
794
795 }
796
797 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
798 u32 *mode)
799 {
800 u32 result;
801
802 if (!sci_open(dev))
803 return -EIO;
804
805 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
806 sci_close(dev);
807 if (result == TOS_FAILURE)
808 pr_err("ACPI call to set USB S&C mode failed\n");
809 else if (result == TOS_NOT_SUPPORTED)
810 return -ENODEV;
811
812 return result == TOS_SUCCESS ? 0 : -EIO;
813 }
814
815 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
816 u32 mode)
817 {
818 u32 result;
819
820 if (!sci_open(dev))
821 return -EIO;
822
823 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
824 sci_close(dev);
825 if (result == TOS_FAILURE)
826 pr_err("ACPI call to set USB S&C mode failed\n");
827 else if (result == TOS_NOT_SUPPORTED)
828 return -ENODEV;
829
830 return result == TOS_SUCCESS ? 0 : -EIO;
831 }
832
833 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
834 u32 *mode)
835 {
836 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
837 u32 out[TCI_WORDS];
838 acpi_status status;
839
840 if (!sci_open(dev))
841 return -EIO;
842
843 in[5] = SCI_USB_CHARGE_BAT_LVL;
844 status = tci_raw(dev, in, out);
845 sci_close(dev);
846 if (ACPI_FAILURE(status)) {
847 pr_err("ACPI call to get USB S&C battery level failed\n");
848 } else if (out[0] == TOS_NOT_SUPPORTED) {
849 return -ENODEV;
850 } else if (out[0] == TOS_SUCCESS) {
851 *mode = out[2];
852 return 0;
853 }
854
855 return -EIO;
856 }
857
858 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
859 u32 mode)
860 {
861 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
862 u32 out[TCI_WORDS];
863 acpi_status status;
864
865 if (!sci_open(dev))
866 return -EIO;
867
868 in[2] = mode;
869 in[5] = SCI_USB_CHARGE_BAT_LVL;
870 status = tci_raw(dev, in, out);
871 sci_close(dev);
872 if (ACPI_FAILURE(status))
873 pr_err("ACPI call to set USB S&C battery level failed\n");
874 else if (out[0] == TOS_NOT_SUPPORTED)
875 return -ENODEV;
876
877 return out[0] == TOS_SUCCESS ? 0 : -EIO;
878 }
879
880 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
881 u32 *state)
882 {
883 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
884 u32 out[TCI_WORDS];
885 acpi_status status;
886
887 if (!sci_open(dev))
888 return -EIO;
889
890 in[5] = SCI_USB_CHARGE_RAPID_DSP;
891 status = tci_raw(dev, in, out);
892 sci_close(dev);
893 if (ACPI_FAILURE(status)) {
894 pr_err("ACPI call to get USB Rapid Charge failed\n");
895 } else if (out[0] == TOS_NOT_SUPPORTED) {
896 return -ENODEV;
897 } else if (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) {
898 *state = out[2];
899 return 0;
900 }
901
902 return -EIO;
903 }
904
905 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
906 u32 state)
907 {
908 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
909 u32 out[TCI_WORDS];
910 acpi_status status;
911
912 if (!sci_open(dev))
913 return -EIO;
914
915 in[2] = state;
916 in[5] = SCI_USB_CHARGE_RAPID_DSP;
917 status = tci_raw(dev, in, out);
918 sci_close(dev);
919 if (ACPI_FAILURE(status))
920 pr_err("ACPI call to set USB Rapid Charge failed\n");
921 else if (out[0] == TOS_NOT_SUPPORTED)
922 return -ENODEV;
923
924 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
925 }
926
927 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
928 {
929 u32 result;
930
931 if (!sci_open(dev))
932 return -EIO;
933
934 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
935 sci_close(dev);
936 if (result == TOS_FAILURE)
937 pr_err("ACPI call to get Sleep and Music failed\n");
938 else if (result == TOS_NOT_SUPPORTED)
939 return -ENODEV;
940
941 return result = TOS_SUCCESS ? 0 : -EIO;
942 }
943
944 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
945 {
946 u32 result;
947
948 if (!sci_open(dev))
949 return -EIO;
950
951 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
952 sci_close(dev);
953 if (result == TOS_FAILURE)
954 pr_err("ACPI call to set Sleep and Music failed\n");
955 else if (result == TOS_NOT_SUPPORTED)
956 return -ENODEV;
957
958 return result == TOS_SUCCESS ? 0 : -EIO;
959 }
960
961 /* Keyboard function keys */
962 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
963 {
964 u32 result;
965
966 if (!sci_open(dev))
967 return -EIO;
968
969 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
970 sci_close(dev);
971 if (result == TOS_FAILURE)
972 pr_err("ACPI call to get KBD function keys failed\n");
973 else if (result == TOS_NOT_SUPPORTED)
974 return -ENODEV;
975
976 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
977 }
978
979 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
980 {
981 u32 result;
982
983 if (!sci_open(dev))
984 return -EIO;
985
986 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
987 sci_close(dev);
988 if (result == TOS_FAILURE)
989 pr_err("ACPI call to set KBD function keys failed\n");
990 else if (result == TOS_NOT_SUPPORTED)
991 return -ENODEV;
992
993 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
994 }
995
996 /* Panel Power ON */
997 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
998 {
999 u32 result;
1000
1001 if (!sci_open(dev))
1002 return -EIO;
1003
1004 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1005 sci_close(dev);
1006 if (result == TOS_FAILURE)
1007 pr_err("ACPI call to get Panel Power ON failed\n");
1008 else if (result == TOS_NOT_SUPPORTED)
1009 return -ENODEV;
1010
1011 return result == TOS_SUCCESS ? 0 : -EIO;
1012 }
1013
1014 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1015 {
1016 u32 result;
1017
1018 if (!sci_open(dev))
1019 return -EIO;
1020
1021 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1022 sci_close(dev);
1023 if (result == TOS_FAILURE)
1024 pr_err("ACPI call to set Panel Power ON failed\n");
1025 else if (result == TOS_NOT_SUPPORTED)
1026 return -ENODEV;
1027
1028 return result == TOS_SUCCESS ? 0 : -EIO;
1029 }
1030
1031 /* USB Three */
1032 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1033 {
1034 u32 result;
1035
1036 if (!sci_open(dev))
1037 return -EIO;
1038
1039 result = sci_read(dev, SCI_USB_THREE, state);
1040 sci_close(dev);
1041 if (result == TOS_FAILURE)
1042 pr_err("ACPI call to get USB 3 failed\n");
1043 else if (result == TOS_NOT_SUPPORTED)
1044 return -ENODEV;
1045
1046 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1047 }
1048
1049 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1050 {
1051 u32 result;
1052
1053 if (!sci_open(dev))
1054 return -EIO;
1055
1056 result = sci_write(dev, SCI_USB_THREE, state);
1057 sci_close(dev);
1058 if (result == TOS_FAILURE)
1059 pr_err("ACPI call to set USB 3 failed\n");
1060 else if (result == TOS_NOT_SUPPORTED)
1061 return -ENODEV;
1062
1063 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1064 }
1065
1066 /* Hotkey Event type */
1067 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1068 u32 *type)
1069 {
1070 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1071 u32 out[TCI_WORDS];
1072 acpi_status status;
1073
1074 status = tci_raw(dev, in, out);
1075 if (ACPI_FAILURE(status)) {
1076 pr_err("ACPI call to get System type failed\n");
1077 } else if (out[0] == TOS_NOT_SUPPORTED) {
1078 return -ENODEV;
1079 } else if (out[0] == TOS_SUCCESS) {
1080 *type = out[3];
1081 return 0;
1082 }
1083
1084 return -EIO;
1085 }
1086
1087 /* Transflective Backlight */
1088 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1089 {
1090 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1091
1092 if (result == TOS_FAILURE)
1093 pr_err("ACPI call to get Transflective Backlight failed\n");
1094 else if (result == TOS_NOT_SUPPORTED)
1095 return -ENODEV;
1096
1097 return result == TOS_SUCCESS ? 0 : -EIO;
1098 }
1099
1100 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1101 {
1102 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1103
1104 if (result == TOS_FAILURE)
1105 pr_err("ACPI call to set Transflective Backlight failed\n");
1106 else if (result == TOS_NOT_SUPPORTED)
1107 return -ENODEV;
1108
1109 return result == TOS_SUCCESS ? 0 : -EIO;
1110 }
1111
1112 static struct proc_dir_entry *toshiba_proc_dir;
1113
1114 /* LCD Brightness */
1115 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1116 {
1117 u32 result;
1118 u32 value;
1119 int brightness = 0;
1120
1121 if (dev->tr_backlight_supported) {
1122 int ret = get_tr_backlight_status(dev, &value);
1123
1124 if (ret)
1125 return ret;
1126 if (value)
1127 return 0;
1128 brightness++;
1129 }
1130
1131 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1132 if (result == TOS_FAILURE)
1133 pr_err("ACPI call to get LCD Brightness failed\n");
1134 else if (result == TOS_NOT_SUPPORTED)
1135 return -ENODEV;
1136 if (result == TOS_SUCCESS)
1137 return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
1138
1139 return -EIO;
1140 }
1141
1142 static int get_lcd_brightness(struct backlight_device *bd)
1143 {
1144 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1145
1146 return __get_lcd_brightness(dev);
1147 }
1148
1149 static int lcd_proc_show(struct seq_file *m, void *v)
1150 {
1151 struct toshiba_acpi_dev *dev = m->private;
1152 int levels;
1153 int value;
1154
1155 if (!dev->backlight_dev)
1156 return -ENODEV;
1157
1158 levels = dev->backlight_dev->props.max_brightness + 1;
1159 value = get_lcd_brightness(dev->backlight_dev);
1160 if (value >= 0) {
1161 seq_printf(m, "brightness: %d\n", value);
1162 seq_printf(m, "brightness_levels: %d\n", levels);
1163 return 0;
1164 }
1165
1166 pr_err("Error reading LCD brightness\n");
1167
1168 return -EIO;
1169 }
1170
1171 static int lcd_proc_open(struct inode *inode, struct file *file)
1172 {
1173 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1174 }
1175
1176 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1177 {
1178 u32 result;
1179
1180 if (dev->tr_backlight_supported) {
1181 int ret = set_tr_backlight_status(dev, !value);
1182
1183 if (ret)
1184 return ret;
1185 if (value)
1186 value--;
1187 }
1188
1189 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1190 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1191 if (result == TOS_FAILURE)
1192 pr_err("ACPI call to set LCD Brightness failed\n");
1193 else if (result == TOS_NOT_SUPPORTED)
1194 return -ENODEV;
1195
1196 return result == TOS_SUCCESS ? 0 : -EIO;
1197 }
1198
1199 static int set_lcd_status(struct backlight_device *bd)
1200 {
1201 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1202
1203 return set_lcd_brightness(dev, bd->props.brightness);
1204 }
1205
1206 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1207 size_t count, loff_t *pos)
1208 {
1209 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1210 char cmd[42];
1211 size_t len;
1212 int levels = dev->backlight_dev->props.max_brightness + 1;
1213 int value;
1214
1215 len = min(count, sizeof(cmd) - 1);
1216 if (copy_from_user(cmd, buf, len))
1217 return -EFAULT;
1218 cmd[len] = '\0';
1219
1220 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1221 value < 0 && value > levels)
1222 return -EINVAL;
1223
1224 if (set_lcd_brightness(dev, value))
1225 return -EIO;
1226
1227 return count;
1228 }
1229
1230 static const struct file_operations lcd_proc_fops = {
1231 .owner = THIS_MODULE,
1232 .open = lcd_proc_open,
1233 .read = seq_read,
1234 .llseek = seq_lseek,
1235 .release = single_release,
1236 .write = lcd_proc_write,
1237 };
1238
1239 /* Video-Out */
1240 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1241 {
1242 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1243
1244 if (result == TOS_FAILURE)
1245 pr_err("ACPI call to get Video-Out failed\n");
1246 else if (result == TOS_NOT_SUPPORTED)
1247 return -ENODEV;
1248
1249 return result == TOS_SUCCESS ? 0 : -EIO;
1250 }
1251
1252 static int video_proc_show(struct seq_file *m, void *v)
1253 {
1254 struct toshiba_acpi_dev *dev = m->private;
1255 u32 value;
1256
1257 if (!get_video_status(dev, &value)) {
1258 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1259 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1260 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1261
1262 seq_printf(m, "lcd_out: %d\n", is_lcd);
1263 seq_printf(m, "crt_out: %d\n", is_crt);
1264 seq_printf(m, "tv_out: %d\n", is_tv);
1265 return 0;
1266 }
1267
1268 return -EIO;
1269 }
1270
1271 static int video_proc_open(struct inode *inode, struct file *file)
1272 {
1273 return single_open(file, video_proc_show, PDE_DATA(inode));
1274 }
1275
1276 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1277 size_t count, loff_t *pos)
1278 {
1279 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1280 char *buffer;
1281 char *cmd;
1282 int remain = count;
1283 int lcd_out = -1;
1284 int crt_out = -1;
1285 int tv_out = -1;
1286 int value;
1287 int ret;
1288 u32 video_out;
1289
1290 cmd = kmalloc(count + 1, GFP_KERNEL);
1291 if (!cmd)
1292 return -ENOMEM;
1293 if (copy_from_user(cmd, buf, count)) {
1294 kfree(cmd);
1295 return -EFAULT;
1296 }
1297 cmd[count] = '\0';
1298
1299 buffer = cmd;
1300
1301 /*
1302 * Scan expression. Multiple expressions may be delimited with ;
1303 * NOTE: To keep scanning simple, invalid fields are ignored.
1304 */
1305 while (remain) {
1306 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1307 lcd_out = value & 1;
1308 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1309 crt_out = value & 1;
1310 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1311 tv_out = value & 1;
1312 /* Advance to one character past the next ; */
1313 do {
1314 ++buffer;
1315 --remain;
1316 } while (remain && *(buffer - 1) != ';');
1317 }
1318
1319 kfree(cmd);
1320
1321 ret = get_video_status(dev, &video_out);
1322 if (!ret) {
1323 unsigned int new_video_out = video_out;
1324
1325 if (lcd_out != -1)
1326 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1327 if (crt_out != -1)
1328 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1329 if (tv_out != -1)
1330 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1331 /*
1332 * To avoid unnecessary video disruption, only write the new
1333 * video setting if something changed.
1334 */
1335 if (new_video_out != video_out)
1336 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1337 }
1338
1339 return ret ? -EIO : count;
1340 }
1341
1342 static const struct file_operations video_proc_fops = {
1343 .owner = THIS_MODULE,
1344 .open = video_proc_open,
1345 .read = seq_read,
1346 .llseek = seq_lseek,
1347 .release = single_release,
1348 .write = video_proc_write,
1349 };
1350
1351 /* Fan status */
1352 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1353 {
1354 u32 result = hci_read(dev, HCI_FAN, status);
1355
1356 if (result == TOS_FAILURE)
1357 pr_err("ACPI call to get Fan status failed\n");
1358 else if (result == TOS_NOT_SUPPORTED)
1359 return -ENODEV;
1360
1361 return result == TOS_SUCCESS ? 0 : -EIO;
1362 }
1363
1364 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1365 {
1366 u32 result = hci_write(dev, HCI_FAN, status);
1367
1368 if (result == TOS_FAILURE)
1369 pr_err("ACPI call to set Fan status failed\n");
1370 else if (result == TOS_NOT_SUPPORTED)
1371 return -ENODEV;
1372
1373 return result == TOS_SUCCESS ? 0 : -EIO;
1374 }
1375
1376 static int fan_proc_show(struct seq_file *m, void *v)
1377 {
1378 struct toshiba_acpi_dev *dev = m->private;
1379 u32 value;
1380
1381 if (get_fan_status(dev, &value))
1382 return -EIO;
1383
1384 seq_printf(m, "running: %d\n", (value > 0));
1385 seq_printf(m, "force_on: %d\n", dev->force_fan);
1386
1387 return 0;
1388 }
1389
1390 static int fan_proc_open(struct inode *inode, struct file *file)
1391 {
1392 return single_open(file, fan_proc_show, PDE_DATA(inode));
1393 }
1394
1395 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1396 size_t count, loff_t *pos)
1397 {
1398 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1399 char cmd[42];
1400 size_t len;
1401 int value;
1402
1403 len = min(count, sizeof(cmd) - 1);
1404 if (copy_from_user(cmd, buf, len))
1405 return -EFAULT;
1406 cmd[len] = '\0';
1407
1408 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1409 value != 0 && value != 1)
1410 return -EINVAL;
1411
1412 if (set_fan_status(dev, value))
1413 return -EIO;
1414
1415 dev->force_fan = value;
1416
1417 return count;
1418 }
1419
1420 static const struct file_operations fan_proc_fops = {
1421 .owner = THIS_MODULE,
1422 .open = fan_proc_open,
1423 .read = seq_read,
1424 .llseek = seq_lseek,
1425 .release = single_release,
1426 .write = fan_proc_write,
1427 };
1428
1429 static int keys_proc_show(struct seq_file *m, void *v)
1430 {
1431 struct toshiba_acpi_dev *dev = m->private;
1432
1433 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1434 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1435
1436 return 0;
1437 }
1438
1439 static int keys_proc_open(struct inode *inode, struct file *file)
1440 {
1441 return single_open(file, keys_proc_show, PDE_DATA(inode));
1442 }
1443
1444 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1445 size_t count, loff_t *pos)
1446 {
1447 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1448 char cmd[42];
1449 size_t len;
1450 int value;
1451
1452 len = min(count, sizeof(cmd) - 1);
1453 if (copy_from_user(cmd, buf, len))
1454 return -EFAULT;
1455 cmd[len] = '\0';
1456
1457 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1458 dev->key_event_valid = 0;
1459 else
1460 return -EINVAL;
1461
1462 return count;
1463 }
1464
1465 static const struct file_operations keys_proc_fops = {
1466 .owner = THIS_MODULE,
1467 .open = keys_proc_open,
1468 .read = seq_read,
1469 .llseek = seq_lseek,
1470 .release = single_release,
1471 .write = keys_proc_write,
1472 };
1473
1474 static int version_proc_show(struct seq_file *m, void *v)
1475 {
1476 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1477 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1478 return 0;
1479 }
1480
1481 static int version_proc_open(struct inode *inode, struct file *file)
1482 {
1483 return single_open(file, version_proc_show, PDE_DATA(inode));
1484 }
1485
1486 static const struct file_operations version_proc_fops = {
1487 .owner = THIS_MODULE,
1488 .open = version_proc_open,
1489 .read = seq_read,
1490 .llseek = seq_lseek,
1491 .release = single_release,
1492 };
1493
1494 /*
1495 * Proc and module init
1496 */
1497
1498 #define PROC_TOSHIBA "toshiba"
1499
1500 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1501 {
1502 if (dev->backlight_dev)
1503 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1504 &lcd_proc_fops, dev);
1505 if (dev->video_supported)
1506 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1507 &video_proc_fops, dev);
1508 if (dev->fan_supported)
1509 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1510 &fan_proc_fops, dev);
1511 if (dev->hotkey_dev)
1512 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1513 &keys_proc_fops, dev);
1514 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1515 &version_proc_fops, dev);
1516 }
1517
1518 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1519 {
1520 if (dev->backlight_dev)
1521 remove_proc_entry("lcd", toshiba_proc_dir);
1522 if (dev->video_supported)
1523 remove_proc_entry("video", toshiba_proc_dir);
1524 if (dev->fan_supported)
1525 remove_proc_entry("fan", toshiba_proc_dir);
1526 if (dev->hotkey_dev)
1527 remove_proc_entry("keys", toshiba_proc_dir);
1528 remove_proc_entry("version", toshiba_proc_dir);
1529 }
1530
1531 static const struct backlight_ops toshiba_backlight_data = {
1532 .options = BL_CORE_SUSPENDRESUME,
1533 .get_brightness = get_lcd_brightness,
1534 .update_status = set_lcd_status,
1535 };
1536
1537 /*
1538 * Sysfs files
1539 */
1540 static ssize_t version_show(struct device *dev,
1541 struct device_attribute *attr, char *buf)
1542 {
1543 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1544 }
1545 static DEVICE_ATTR_RO(version);
1546
1547 static ssize_t fan_store(struct device *dev,
1548 struct device_attribute *attr,
1549 const char *buf, size_t count)
1550 {
1551 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1552 int state;
1553 int ret;
1554
1555 ret = kstrtoint(buf, 0, &state);
1556 if (ret)
1557 return ret;
1558
1559 if (state != 0 && state != 1)
1560 return -EINVAL;
1561
1562 ret = set_fan_status(toshiba, state);
1563 if (ret)
1564 return ret;
1565
1566 return count;
1567 }
1568
1569 static ssize_t fan_show(struct device *dev,
1570 struct device_attribute *attr, char *buf)
1571 {
1572 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1573 u32 value;
1574 int ret;
1575
1576 ret = get_fan_status(toshiba, &value);
1577 if (ret)
1578 return ret;
1579
1580 return sprintf(buf, "%d\n", value);
1581 }
1582 static DEVICE_ATTR_RW(fan);
1583
1584 static ssize_t kbd_backlight_mode_store(struct device *dev,
1585 struct device_attribute *attr,
1586 const char *buf, size_t count)
1587 {
1588 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1589 int mode;
1590 int ret;
1591
1592
1593 ret = kstrtoint(buf, 0, &mode);
1594 if (ret)
1595 return ret;
1596
1597 /* Check for supported modes depending on keyboard backlight type */
1598 if (toshiba->kbd_type == 1) {
1599 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1600 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1601 return -EINVAL;
1602 } else if (toshiba->kbd_type == 2) {
1603 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1604 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1605 mode != SCI_KBD_MODE_OFF)
1606 return -EINVAL;
1607 }
1608
1609 /*
1610 * Set the Keyboard Backlight Mode where:
1611 * Auto - KBD backlight turns off automatically in given time
1612 * FN-Z - KBD backlight "toggles" when hotkey pressed
1613 * ON - KBD backlight is always on
1614 * OFF - KBD backlight is always off
1615 */
1616
1617 /* Only make a change if the actual mode has changed */
1618 if (toshiba->kbd_mode != mode) {
1619 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1620 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1621
1622 /* OR the "base time" to the actual method format */
1623 if (toshiba->kbd_type == 1) {
1624 /* Type 1 requires the current mode */
1625 time |= toshiba->kbd_mode;
1626 } else if (toshiba->kbd_type == 2) {
1627 /* Type 2 requires the desired mode */
1628 time |= mode;
1629 }
1630
1631 ret = toshiba_kbd_illum_status_set(toshiba, time);
1632 if (ret)
1633 return ret;
1634
1635 toshiba->kbd_mode = mode;
1636 }
1637
1638 return count;
1639 }
1640
1641 static ssize_t kbd_backlight_mode_show(struct device *dev,
1642 struct device_attribute *attr,
1643 char *buf)
1644 {
1645 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1646 u32 time;
1647
1648 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1649 return -EIO;
1650
1651 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1652 }
1653 static DEVICE_ATTR_RW(kbd_backlight_mode);
1654
1655 static ssize_t kbd_type_show(struct device *dev,
1656 struct device_attribute *attr, char *buf)
1657 {
1658 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1659
1660 return sprintf(buf, "%d\n", toshiba->kbd_type);
1661 }
1662 static DEVICE_ATTR_RO(kbd_type);
1663
1664 static ssize_t available_kbd_modes_show(struct device *dev,
1665 struct device_attribute *attr,
1666 char *buf)
1667 {
1668 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1669
1670 if (toshiba->kbd_type == 1)
1671 return sprintf(buf, "%x %x\n",
1672 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1673
1674 return sprintf(buf, "%x %x %x\n",
1675 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1676 }
1677 static DEVICE_ATTR_RO(available_kbd_modes);
1678
1679 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1680 struct device_attribute *attr,
1681 const char *buf, size_t count)
1682 {
1683 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1684 int time;
1685 int ret;
1686
1687 ret = kstrtoint(buf, 0, &time);
1688 if (ret)
1689 return ret;
1690
1691 /* Check for supported values depending on kbd_type */
1692 if (toshiba->kbd_type == 1) {
1693 if (time < 0 || time > 60)
1694 return -EINVAL;
1695 } else if (toshiba->kbd_type == 2) {
1696 if (time < 1 || time > 60)
1697 return -EINVAL;
1698 }
1699
1700 /* Set the Keyboard Backlight Timeout */
1701
1702 /* Only make a change if the actual timeout has changed */
1703 if (toshiba->kbd_time != time) {
1704 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1705 time = time << HCI_MISC_SHIFT;
1706 /* OR the "base time" to the actual method format */
1707 if (toshiba->kbd_type == 1)
1708 time |= SCI_KBD_MODE_FNZ;
1709 else if (toshiba->kbd_type == 2)
1710 time |= SCI_KBD_MODE_AUTO;
1711
1712 ret = toshiba_kbd_illum_status_set(toshiba, time);
1713 if (ret)
1714 return ret;
1715
1716 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1717 }
1718
1719 return count;
1720 }
1721
1722 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1723 struct device_attribute *attr,
1724 char *buf)
1725 {
1726 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1727 u32 time;
1728
1729 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1730 return -EIO;
1731
1732 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1733 }
1734 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1735
1736 static ssize_t touchpad_store(struct device *dev,
1737 struct device_attribute *attr,
1738 const char *buf, size_t count)
1739 {
1740 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1741 int state;
1742 int ret;
1743
1744 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1745 ret = kstrtoint(buf, 0, &state);
1746 if (ret)
1747 return ret;
1748 if (state != 0 && state != 1)
1749 return -EINVAL;
1750
1751 ret = toshiba_touchpad_set(toshiba, state);
1752 if (ret)
1753 return ret;
1754
1755 return count;
1756 }
1757
1758 static ssize_t touchpad_show(struct device *dev,
1759 struct device_attribute *attr, char *buf)
1760 {
1761 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1762 u32 state;
1763 int ret;
1764
1765 ret = toshiba_touchpad_get(toshiba, &state);
1766 if (ret < 0)
1767 return ret;
1768
1769 return sprintf(buf, "%i\n", state);
1770 }
1771 static DEVICE_ATTR_RW(touchpad);
1772
1773 static ssize_t position_show(struct device *dev,
1774 struct device_attribute *attr, char *buf)
1775 {
1776 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1777 u32 xyval, zval, tmp;
1778 u16 x, y, z;
1779 int ret;
1780
1781 xyval = zval = 0;
1782 ret = toshiba_accelerometer_get(toshiba, &xyval, &zval);
1783 if (ret < 0)
1784 return ret;
1785
1786 x = xyval & HCI_ACCEL_MASK;
1787 tmp = xyval >> HCI_MISC_SHIFT;
1788 y = tmp & HCI_ACCEL_MASK;
1789 z = zval & HCI_ACCEL_MASK;
1790
1791 return sprintf(buf, "%d %d %d\n", x, y, z);
1792 }
1793 static DEVICE_ATTR_RO(position);
1794
1795 static ssize_t usb_sleep_charge_show(struct device *dev,
1796 struct device_attribute *attr, char *buf)
1797 {
1798 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1799 u32 mode;
1800 int ret;
1801
1802 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
1803 if (ret < 0)
1804 return ret;
1805
1806 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
1807 }
1808
1809 static ssize_t usb_sleep_charge_store(struct device *dev,
1810 struct device_attribute *attr,
1811 const char *buf, size_t count)
1812 {
1813 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1814 u32 mode;
1815 int state;
1816 int ret;
1817
1818 ret = kstrtoint(buf, 0, &state);
1819 if (ret)
1820 return ret;
1821 /*
1822 * Check for supported values, where:
1823 * 0 - Disabled
1824 * 1 - Alternate (Non USB conformant devices that require more power)
1825 * 2 - Auto (USB conformant devices)
1826 * 3 - Typical
1827 */
1828 if (state != 0 && state != 1 && state != 2 && state != 3)
1829 return -EINVAL;
1830
1831 /* Set the USB charging mode to internal value */
1832 mode = toshiba->usbsc_mode_base;
1833 if (state == 0)
1834 mode |= SCI_USB_CHARGE_DISABLED;
1835 else if (state == 1)
1836 mode |= SCI_USB_CHARGE_ALTERNATE;
1837 else if (state == 2)
1838 mode |= SCI_USB_CHARGE_AUTO;
1839 else if (state == 3)
1840 mode |= SCI_USB_CHARGE_TYPICAL;
1841
1842 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
1843 if (ret)
1844 return ret;
1845
1846 return count;
1847 }
1848 static DEVICE_ATTR_RW(usb_sleep_charge);
1849
1850 static ssize_t sleep_functions_on_battery_show(struct device *dev,
1851 struct device_attribute *attr,
1852 char *buf)
1853 {
1854 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1855 u32 state;
1856 int bat_lvl;
1857 int status;
1858 int ret;
1859 int tmp;
1860
1861 ret = toshiba_sleep_functions_status_get(toshiba, &state);
1862 if (ret < 0)
1863 return ret;
1864
1865 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
1866 tmp = state & SCI_USB_CHARGE_BAT_MASK;
1867 status = (tmp == 0x4) ? 1 : 0;
1868 /* Determine the battery level set */
1869 bat_lvl = state >> HCI_MISC_SHIFT;
1870
1871 return sprintf(buf, "%d %d\n", status, bat_lvl);
1872 }
1873
1874 static ssize_t sleep_functions_on_battery_store(struct device *dev,
1875 struct device_attribute *attr,
1876 const char *buf, size_t count)
1877 {
1878 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1879 u32 status;
1880 int value;
1881 int ret;
1882 int tmp;
1883
1884 ret = kstrtoint(buf, 0, &value);
1885 if (ret)
1886 return ret;
1887
1888 /*
1889 * Set the status of the function:
1890 * 0 - Disabled
1891 * 1-100 - Enabled
1892 */
1893 if (value < 0 || value > 100)
1894 return -EINVAL;
1895
1896 if (value == 0) {
1897 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
1898 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
1899 } else {
1900 tmp = value << HCI_MISC_SHIFT;
1901 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
1902 }
1903 ret = toshiba_sleep_functions_status_set(toshiba, status);
1904 if (ret < 0)
1905 return ret;
1906
1907 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
1908
1909 return count;
1910 }
1911 static DEVICE_ATTR_RW(sleep_functions_on_battery);
1912
1913 static ssize_t usb_rapid_charge_show(struct device *dev,
1914 struct device_attribute *attr, char *buf)
1915 {
1916 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1917 u32 state;
1918 int ret;
1919
1920 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
1921 if (ret < 0)
1922 return ret;
1923
1924 return sprintf(buf, "%d\n", state);
1925 }
1926
1927 static ssize_t usb_rapid_charge_store(struct device *dev,
1928 struct device_attribute *attr,
1929 const char *buf, size_t count)
1930 {
1931 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1932 int state;
1933 int ret;
1934
1935 ret = kstrtoint(buf, 0, &state);
1936 if (ret)
1937 return ret;
1938 if (state != 0 && state != 1)
1939 return -EINVAL;
1940
1941 ret = toshiba_usb_rapid_charge_set(toshiba, state);
1942 if (ret)
1943 return ret;
1944
1945 return count;
1946 }
1947 static DEVICE_ATTR_RW(usb_rapid_charge);
1948
1949 static ssize_t usb_sleep_music_show(struct device *dev,
1950 struct device_attribute *attr, char *buf)
1951 {
1952 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1953 u32 state;
1954 int ret;
1955
1956 ret = toshiba_usb_sleep_music_get(toshiba, &state);
1957 if (ret < 0)
1958 return ret;
1959
1960 return sprintf(buf, "%d\n", state);
1961 }
1962
1963 static ssize_t usb_sleep_music_store(struct device *dev,
1964 struct device_attribute *attr,
1965 const char *buf, size_t count)
1966 {
1967 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1968 int state;
1969 int ret;
1970
1971 ret = kstrtoint(buf, 0, &state);
1972 if (ret)
1973 return ret;
1974 if (state != 0 && state != 1)
1975 return -EINVAL;
1976
1977 ret = toshiba_usb_sleep_music_set(toshiba, state);
1978 if (ret)
1979 return ret;
1980
1981 return count;
1982 }
1983 static DEVICE_ATTR_RW(usb_sleep_music);
1984
1985 static ssize_t kbd_function_keys_show(struct device *dev,
1986 struct device_attribute *attr, char *buf)
1987 {
1988 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1989 int mode;
1990 int ret;
1991
1992 ret = toshiba_function_keys_get(toshiba, &mode);
1993 if (ret < 0)
1994 return ret;
1995
1996 return sprintf(buf, "%d\n", mode);
1997 }
1998
1999 static ssize_t kbd_function_keys_store(struct device *dev,
2000 struct device_attribute *attr,
2001 const char *buf, size_t count)
2002 {
2003 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2004 int mode;
2005 int ret;
2006
2007 ret = kstrtoint(buf, 0, &mode);
2008 if (ret)
2009 return ret;
2010 /*
2011 * Check for the function keys mode where:
2012 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2013 * 1 - Special functions (Opposite of the above setting)
2014 */
2015 if (mode != 0 && mode != 1)
2016 return -EINVAL;
2017
2018 ret = toshiba_function_keys_set(toshiba, mode);
2019 if (ret)
2020 return ret;
2021
2022 pr_info("Reboot for changes to KBD Function Keys to take effect");
2023
2024 return count;
2025 }
2026 static DEVICE_ATTR_RW(kbd_function_keys);
2027
2028 static ssize_t panel_power_on_show(struct device *dev,
2029 struct device_attribute *attr, char *buf)
2030 {
2031 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2032 u32 state;
2033 int ret;
2034
2035 ret = toshiba_panel_power_on_get(toshiba, &state);
2036 if (ret < 0)
2037 return ret;
2038
2039 return sprintf(buf, "%d\n", state);
2040 }
2041
2042 static ssize_t panel_power_on_store(struct device *dev,
2043 struct device_attribute *attr,
2044 const char *buf, size_t count)
2045 {
2046 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2047 int state;
2048 int ret;
2049
2050 ret = kstrtoint(buf, 0, &state);
2051 if (ret)
2052 return ret;
2053 if (state != 0 && state != 1)
2054 return -EINVAL;
2055
2056 ret = toshiba_panel_power_on_set(toshiba, state);
2057 if (ret)
2058 return ret;
2059
2060 pr_info("Reboot for changes to Panel Power ON to take effect");
2061
2062 return count;
2063 }
2064 static DEVICE_ATTR_RW(panel_power_on);
2065
2066 static ssize_t usb_three_show(struct device *dev,
2067 struct device_attribute *attr, char *buf)
2068 {
2069 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2070 u32 state;
2071 int ret;
2072
2073 ret = toshiba_usb_three_get(toshiba, &state);
2074 if (ret < 0)
2075 return ret;
2076
2077 return sprintf(buf, "%d\n", state);
2078 }
2079
2080 static ssize_t usb_three_store(struct device *dev,
2081 struct device_attribute *attr,
2082 const char *buf, size_t count)
2083 {
2084 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2085 int state;
2086 int ret;
2087
2088 ret = kstrtoint(buf, 0, &state);
2089 if (ret)
2090 return ret;
2091 /*
2092 * Check for USB 3 mode where:
2093 * 0 - Disabled (Acts like a USB 2 port, saving power)
2094 * 1 - Enabled
2095 */
2096 if (state != 0 && state != 1)
2097 return -EINVAL;
2098
2099 ret = toshiba_usb_three_set(toshiba, state);
2100 if (ret)
2101 return ret;
2102
2103 pr_info("Reboot for changes to USB 3 to take effect");
2104
2105 return count;
2106 }
2107 static DEVICE_ATTR_RW(usb_three);
2108
2109 static struct attribute *toshiba_attributes[] = {
2110 &dev_attr_version.attr,
2111 &dev_attr_fan.attr,
2112 &dev_attr_kbd_backlight_mode.attr,
2113 &dev_attr_kbd_type.attr,
2114 &dev_attr_available_kbd_modes.attr,
2115 &dev_attr_kbd_backlight_timeout.attr,
2116 &dev_attr_touchpad.attr,
2117 &dev_attr_position.attr,
2118 &dev_attr_usb_sleep_charge.attr,
2119 &dev_attr_sleep_functions_on_battery.attr,
2120 &dev_attr_usb_rapid_charge.attr,
2121 &dev_attr_usb_sleep_music.attr,
2122 &dev_attr_kbd_function_keys.attr,
2123 &dev_attr_panel_power_on.attr,
2124 &dev_attr_usb_three.attr,
2125 NULL,
2126 };
2127
2128 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2129 struct attribute *attr, int idx)
2130 {
2131 struct device *dev = container_of(kobj, struct device, kobj);
2132 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2133 bool exists = true;
2134
2135 if (attr == &dev_attr_fan.attr)
2136 exists = (drv->fan_supported) ? true : false;
2137 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2138 exists = (drv->kbd_illum_supported) ? true : false;
2139 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2140 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2141 else if (attr == &dev_attr_touchpad.attr)
2142 exists = (drv->touchpad_supported) ? true : false;
2143 else if (attr == &dev_attr_position.attr)
2144 exists = (drv->accelerometer_supported) ? true : false;
2145 else if (attr == &dev_attr_usb_sleep_charge.attr)
2146 exists = (drv->usb_sleep_charge_supported) ? true : false;
2147 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2148 exists = (drv->usb_sleep_charge_supported) ? true : false;
2149 else if (attr == &dev_attr_usb_rapid_charge.attr)
2150 exists = (drv->usb_rapid_charge_supported) ? true : false;
2151 else if (attr == &dev_attr_usb_sleep_music.attr)
2152 exists = (drv->usb_sleep_music_supported) ? true : false;
2153 else if (attr == &dev_attr_kbd_function_keys.attr)
2154 exists = (drv->kbd_function_keys_supported) ? true : false;
2155 else if (attr == &dev_attr_panel_power_on.attr)
2156 exists = (drv->panel_power_on_supported) ? true : false;
2157 else if (attr == &dev_attr_usb_three.attr)
2158 exists = (drv->usb_three_supported) ? true : false;
2159
2160 return exists ? attr->mode : 0;
2161 }
2162
2163 static struct attribute_group toshiba_attr_group = {
2164 .is_visible = toshiba_sysfs_is_visible,
2165 .attrs = toshiba_attributes,
2166 };
2167
2168 /*
2169 * Misc device
2170 */
2171 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2172 {
2173 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2174 regs->edx, regs->esi, regs->edi };
2175 u32 out[TCI_WORDS];
2176 acpi_status status;
2177
2178 status = tci_raw(toshiba_acpi, in, out);
2179 if (ACPI_FAILURE(status)) {
2180 pr_err("ACPI call to query SMM registers failed\n");
2181 return -EIO;
2182 }
2183
2184 /* Fillout the SMM struct with the TCI call results */
2185 regs->eax = out[0];
2186 regs->ebx = out[1];
2187 regs->ecx = out[2];
2188 regs->edx = out[3];
2189 regs->esi = out[4];
2190 regs->edi = out[5];
2191
2192 return 0;
2193 }
2194
2195 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2196 unsigned long arg)
2197 {
2198 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2199 SMMRegisters regs;
2200 int ret;
2201
2202 if (!argp)
2203 return -EINVAL;
2204
2205 switch (cmd) {
2206 case TOSH_SMM:
2207 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2208 return -EFAULT;
2209 ret = toshiba_acpi_smm_bridge(&regs);
2210 if (ret)
2211 return ret;
2212 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2213 return -EFAULT;
2214 break;
2215 case TOSHIBA_ACPI_SCI:
2216 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2217 return -EFAULT;
2218 /* Ensure we are being called with a SCI_{GET, SET} register */
2219 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2220 return -EINVAL;
2221 if (!sci_open(toshiba_acpi))
2222 return -EIO;
2223 ret = toshiba_acpi_smm_bridge(&regs);
2224 sci_close(toshiba_acpi);
2225 if (ret)
2226 return ret;
2227 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2228 return -EFAULT;
2229 break;
2230 default:
2231 return -EINVAL;
2232 }
2233
2234 return 0;
2235 }
2236
2237 static const struct file_operations toshiba_acpi_fops = {
2238 .owner = THIS_MODULE,
2239 .unlocked_ioctl = toshiba_acpi_ioctl,
2240 .llseek = noop_llseek,
2241 };
2242
2243 /*
2244 * Hotkeys
2245 */
2246 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2247 {
2248 acpi_status status;
2249 u32 result;
2250
2251 status = acpi_evaluate_object(dev->acpi_dev->handle,
2252 "ENAB", NULL, NULL);
2253 if (ACPI_FAILURE(status))
2254 return -ENODEV;
2255
2256 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2257 if (result == TOS_FAILURE)
2258 return -EIO;
2259 else if (result == TOS_NOT_SUPPORTED)
2260 return -ENODEV;
2261
2262 return 0;
2263 }
2264
2265 static void toshiba_acpi_enable_special_functions(struct toshiba_acpi_dev *dev)
2266 {
2267 u32 result;
2268
2269 /*
2270 * Re-activate the hotkeys, but this time, we are using the
2271 * "Special Functions" mode.
2272 */
2273 result = hci_write(dev, HCI_HOTKEY_EVENT,
2274 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2275 if (result != TOS_SUCCESS)
2276 pr_err("Could not enable the Special Function mode\n");
2277 }
2278
2279 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2280 struct serio *port)
2281 {
2282 if (str & I8042_STR_AUXDATA)
2283 return false;
2284
2285 if (unlikely(data == 0xe0))
2286 return false;
2287
2288 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2289 schedule_work(&toshiba_acpi->hotkey_work);
2290 return true;
2291 }
2292
2293 return false;
2294 }
2295
2296 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2297 {
2298 acpi_handle ec_handle = ec_get_handle();
2299 acpi_status status;
2300
2301 if (!ec_handle)
2302 return;
2303
2304 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2305 if (ACPI_FAILURE(status))
2306 pr_err("ACPI NTFY method execution failed\n");
2307 }
2308
2309 /*
2310 * Returns hotkey scancode, or < 0 on failure.
2311 */
2312 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2313 {
2314 unsigned long long value;
2315 acpi_status status;
2316
2317 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2318 NULL, &value);
2319 if (ACPI_FAILURE(status)) {
2320 pr_err("ACPI INFO method execution failed\n");
2321 return -EIO;
2322 }
2323
2324 return value;
2325 }
2326
2327 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2328 int scancode)
2329 {
2330 if (scancode == 0x100)
2331 return;
2332
2333 /* Act on key press; ignore key release */
2334 if (scancode & 0x80)
2335 return;
2336
2337 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2338 pr_info("Unknown key %x\n", scancode);
2339 }
2340
2341 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2342 {
2343 if (dev->info_supported) {
2344 int scancode = toshiba_acpi_query_hotkey(dev);
2345
2346 if (scancode < 0) {
2347 pr_err("Failed to query hotkey event\n");
2348 } else if (scancode != 0) {
2349 toshiba_acpi_report_hotkey(dev, scancode);
2350 dev->key_event_valid = 1;
2351 dev->last_key_event = scancode;
2352 }
2353 } else if (dev->system_event_supported) {
2354 u32 result;
2355 u32 value;
2356 int retries = 3;
2357
2358 do {
2359 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2360 switch (result) {
2361 case TOS_SUCCESS:
2362 toshiba_acpi_report_hotkey(dev, (int)value);
2363 dev->key_event_valid = 1;
2364 dev->last_key_event = value;
2365 break;
2366 case TOS_NOT_SUPPORTED:
2367 /*
2368 * This is a workaround for an unresolved
2369 * issue on some machines where system events
2370 * sporadically become disabled.
2371 */
2372 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2373 if (result == TOS_SUCCESS)
2374 pr_notice("Re-enabled hotkeys\n");
2375 /* Fall through */
2376 default:
2377 retries--;
2378 break;
2379 }
2380 } while (retries && result != TOS_FIFO_EMPTY);
2381 }
2382 }
2383
2384 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2385 {
2386 const struct key_entry *keymap = toshiba_acpi_keymap;
2387 acpi_handle ec_handle;
2388 u32 events_type;
2389 u32 hci_result;
2390 int error;
2391
2392 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2393 pr_info("WMI event detected, hotkeys will not be monitored\n");
2394 return 0;
2395 }
2396
2397 error = toshiba_acpi_enable_hotkeys(dev);
2398 if (error)
2399 return error;
2400
2401 error = toshiba_hotkey_event_type_get(dev, &events_type);
2402 if (error) {
2403 pr_err("Unable to query Hotkey Event Type\n");
2404 return error;
2405 }
2406 dev->hotkey_event_type = events_type;
2407
2408 dev->hotkey_dev = input_allocate_device();
2409 if (!dev->hotkey_dev)
2410 return -ENOMEM;
2411
2412 dev->hotkey_dev->name = "Toshiba input device";
2413 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2414 dev->hotkey_dev->id.bustype = BUS_HOST;
2415
2416 if (events_type == HCI_SYSTEM_TYPE1 ||
2417 !dev->kbd_function_keys_supported)
2418 keymap = toshiba_acpi_keymap;
2419 else if (events_type == HCI_SYSTEM_TYPE2 ||
2420 dev->kbd_function_keys_supported)
2421 keymap = toshiba_acpi_alt_keymap;
2422 else
2423 pr_info("Unknown event type received %x\n", events_type);
2424 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2425 if (error)
2426 goto err_free_dev;
2427
2428 /*
2429 * For some machines the SCI responsible for providing hotkey
2430 * notification doesn't fire. We can trigger the notification
2431 * whenever the Fn key is pressed using the NTFY method, if
2432 * supported, so if it's present set up an i8042 key filter
2433 * for this purpose.
2434 */
2435 ec_handle = ec_get_handle();
2436 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2437 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2438
2439 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2440 if (error) {
2441 pr_err("Error installing key filter\n");
2442 goto err_free_keymap;
2443 }
2444
2445 dev->ntfy_supported = 1;
2446 }
2447
2448 /*
2449 * Determine hotkey query interface. Prefer using the INFO
2450 * method when it is available.
2451 */
2452 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2453 dev->info_supported = 1;
2454 else {
2455 hci_result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2456 if (hci_result == TOS_SUCCESS)
2457 dev->system_event_supported = 1;
2458 }
2459
2460 if (!dev->info_supported && !dev->system_event_supported) {
2461 pr_warn("No hotkey query interface found\n");
2462 goto err_remove_filter;
2463 }
2464
2465 error = input_register_device(dev->hotkey_dev);
2466 if (error) {
2467 pr_info("Unable to register input device\n");
2468 goto err_remove_filter;
2469 }
2470
2471 return 0;
2472
2473 err_remove_filter:
2474 if (dev->ntfy_supported)
2475 i8042_remove_filter(toshiba_acpi_i8042_filter);
2476 err_free_keymap:
2477 sparse_keymap_free(dev->hotkey_dev);
2478 err_free_dev:
2479 input_free_device(dev->hotkey_dev);
2480 dev->hotkey_dev = NULL;
2481 return error;
2482 }
2483
2484 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2485 {
2486 struct backlight_properties props;
2487 int brightness;
2488 int ret;
2489
2490 /*
2491 * Some machines don't support the backlight methods at all, and
2492 * others support it read-only. Either of these is pretty useless,
2493 * so only register the backlight device if the backlight method
2494 * supports both reads and writes.
2495 */
2496 brightness = __get_lcd_brightness(dev);
2497 if (brightness < 0)
2498 return 0;
2499 ret = set_lcd_brightness(dev, brightness);
2500 if (ret) {
2501 pr_debug("Backlight method is read-only, disabling backlight support\n");
2502 return 0;
2503 }
2504
2505 /*
2506 * Tell acpi-video-detect code to prefer vendor backlight on all
2507 * systems with transflective backlight and on dmi matched systems.
2508 */
2509 if (dev->tr_backlight_supported ||
2510 dmi_check_system(toshiba_vendor_backlight_dmi))
2511 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2512
2513 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2514 return 0;
2515
2516 memset(&props, 0, sizeof(props));
2517 props.type = BACKLIGHT_PLATFORM;
2518 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2519
2520 /* Adding an extra level and having 0 change to transflective mode */
2521 if (dev->tr_backlight_supported)
2522 props.max_brightness++;
2523
2524 dev->backlight_dev = backlight_device_register("toshiba",
2525 &dev->acpi_dev->dev,
2526 dev,
2527 &toshiba_backlight_data,
2528 &props);
2529 if (IS_ERR(dev->backlight_dev)) {
2530 ret = PTR_ERR(dev->backlight_dev);
2531 pr_err("Could not register toshiba backlight device\n");
2532 dev->backlight_dev = NULL;
2533 return ret;
2534 }
2535
2536 dev->backlight_dev->props.brightness = brightness;
2537 return 0;
2538 }
2539
2540 static void print_supported_features(struct toshiba_acpi_dev *dev)
2541 {
2542 pr_info("Supported laptop features:");
2543
2544 if (dev->hotkey_dev)
2545 pr_cont(" hotkeys");
2546 if (dev->backlight_dev)
2547 pr_cont(" backlight");
2548 if (dev->video_supported)
2549 pr_cont(" video-out");
2550 if (dev->fan_supported)
2551 pr_cont(" fan");
2552 if (dev->tr_backlight_supported)
2553 pr_cont(" transflective-backlight");
2554 if (dev->illumination_supported)
2555 pr_cont(" illumination");
2556 if (dev->kbd_illum_supported)
2557 pr_cont(" keyboard-backlight");
2558 if (dev->touchpad_supported)
2559 pr_cont(" touchpad");
2560 if (dev->eco_supported)
2561 pr_cont(" eco-led");
2562 if (dev->accelerometer_supported)
2563 pr_cont(" accelerometer-axes");
2564 if (dev->usb_sleep_charge_supported)
2565 pr_cont(" usb-sleep-charge");
2566 if (dev->usb_rapid_charge_supported)
2567 pr_cont(" usb-rapid-charge");
2568 if (dev->usb_sleep_music_supported)
2569 pr_cont(" usb-sleep-music");
2570 if (dev->kbd_function_keys_supported)
2571 pr_cont(" special-function-keys");
2572 if (dev->panel_power_on_supported)
2573 pr_cont(" panel-power-on");
2574 if (dev->usb_three_supported)
2575 pr_cont(" usb3");
2576
2577 pr_cont("\n");
2578 }
2579
2580 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2581 {
2582 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2583
2584 misc_deregister(&dev->miscdev);
2585
2586 remove_toshiba_proc_entries(dev);
2587
2588 if (dev->sysfs_created)
2589 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
2590 &toshiba_attr_group);
2591
2592 if (dev->ntfy_supported) {
2593 i8042_remove_filter(toshiba_acpi_i8042_filter);
2594 cancel_work_sync(&dev->hotkey_work);
2595 }
2596
2597 if (dev->hotkey_dev) {
2598 input_unregister_device(dev->hotkey_dev);
2599 sparse_keymap_free(dev->hotkey_dev);
2600 }
2601
2602 backlight_device_unregister(dev->backlight_dev);
2603
2604 if (dev->illumination_led_registered)
2605 led_classdev_unregister(&dev->led_dev);
2606
2607 if (dev->kbd_led_registered)
2608 led_classdev_unregister(&dev->kbd_led);
2609
2610 if (dev->eco_led_registered)
2611 led_classdev_unregister(&dev->eco_led);
2612
2613 if (toshiba_acpi)
2614 toshiba_acpi = NULL;
2615
2616 kfree(dev);
2617
2618 return 0;
2619 }
2620
2621 static const char *find_hci_method(acpi_handle handle)
2622 {
2623 if (acpi_has_method(handle, "GHCI"))
2624 return "GHCI";
2625
2626 if (acpi_has_method(handle, "SPFC"))
2627 return "SPFC";
2628
2629 return NULL;
2630 }
2631
2632 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
2633 {
2634 struct toshiba_acpi_dev *dev;
2635 const char *hci_method;
2636 u32 special_functions;
2637 u32 dummy;
2638 int ret = 0;
2639
2640 if (toshiba_acpi)
2641 return -EBUSY;
2642
2643 pr_info("Toshiba Laptop ACPI Extras version %s\n",
2644 TOSHIBA_ACPI_VERSION);
2645
2646 hci_method = find_hci_method(acpi_dev->handle);
2647 if (!hci_method) {
2648 pr_err("HCI interface not found\n");
2649 return -ENODEV;
2650 }
2651
2652 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
2653 if (!dev)
2654 return -ENOMEM;
2655 dev->acpi_dev = acpi_dev;
2656 dev->method_hci = hci_method;
2657 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
2658 dev->miscdev.name = "toshiba_acpi";
2659 dev->miscdev.fops = &toshiba_acpi_fops;
2660
2661 ret = misc_register(&dev->miscdev);
2662 if (ret) {
2663 pr_err("Failed to register miscdevice\n");
2664 kfree(dev);
2665 return ret;
2666 }
2667
2668 acpi_dev->driver_data = dev;
2669 dev_set_drvdata(&acpi_dev->dev, dev);
2670
2671 /* Query the BIOS for supported features */
2672
2673 /*
2674 * The "Special Functions" are always supported by the laptops
2675 * with the new keyboard layout, query for its presence to help
2676 * determine the keymap layout to use.
2677 */
2678 ret = toshiba_function_keys_get(dev, &special_functions);
2679 dev->kbd_function_keys_supported = !ret;
2680
2681 if (toshiba_acpi_setup_keyboard(dev))
2682 pr_info("Unable to activate hotkeys\n");
2683
2684 /* Determine whether or not BIOS supports transflective backlight */
2685 ret = get_tr_backlight_status(dev, &dummy);
2686 dev->tr_backlight_supported = !ret;
2687
2688 ret = toshiba_acpi_setup_backlight(dev);
2689 if (ret)
2690 goto error;
2691
2692 toshiba_illumination_available(dev);
2693 if (dev->illumination_supported) {
2694 dev->led_dev.name = "toshiba::illumination";
2695 dev->led_dev.max_brightness = 1;
2696 dev->led_dev.brightness_set = toshiba_illumination_set;
2697 dev->led_dev.brightness_get = toshiba_illumination_get;
2698 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
2699 dev->illumination_led_registered = true;
2700 }
2701
2702 toshiba_eco_mode_available(dev);
2703 if (dev->eco_supported) {
2704 dev->eco_led.name = "toshiba::eco_mode";
2705 dev->eco_led.max_brightness = 1;
2706 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
2707 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
2708 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
2709 dev->eco_led_registered = true;
2710 }
2711
2712 toshiba_kbd_illum_available(dev);
2713 /*
2714 * Only register the LED if KBD illumination is supported
2715 * and the keyboard backlight operation mode is set to FN-Z
2716 */
2717 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
2718 dev->kbd_led.name = "toshiba::kbd_backlight";
2719 dev->kbd_led.max_brightness = 1;
2720 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
2721 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
2722 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
2723 dev->kbd_led_registered = true;
2724 }
2725
2726 ret = toshiba_touchpad_get(dev, &dummy);
2727 dev->touchpad_supported = !ret;
2728
2729 toshiba_accelerometer_available(dev);
2730
2731 toshiba_usb_sleep_charge_available(dev);
2732
2733 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
2734 dev->usb_rapid_charge_supported = !ret;
2735
2736 ret = toshiba_usb_sleep_music_get(dev, &dummy);
2737 dev->usb_sleep_music_supported = !ret;
2738
2739 ret = toshiba_panel_power_on_get(dev, &dummy);
2740 dev->panel_power_on_supported = !ret;
2741
2742 ret = toshiba_usb_three_get(dev, &dummy);
2743 dev->usb_three_supported = !ret;
2744
2745 ret = get_video_status(dev, &dummy);
2746 dev->video_supported = !ret;
2747
2748 ret = get_fan_status(dev, &dummy);
2749 dev->fan_supported = !ret;
2750
2751 print_supported_features(dev);
2752
2753 /*
2754 * Enable the "Special Functions" mode only if they are
2755 * supported and if they are activated.
2756 */
2757 if (dev->kbd_function_keys_supported && special_functions)
2758 toshiba_acpi_enable_special_functions(dev);
2759
2760 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
2761 &toshiba_attr_group);
2762 if (ret) {
2763 dev->sysfs_created = 0;
2764 goto error;
2765 }
2766 dev->sysfs_created = !ret;
2767
2768 create_toshiba_proc_entries(dev);
2769
2770 toshiba_acpi = dev;
2771
2772 return 0;
2773
2774 error:
2775 toshiba_acpi_remove(acpi_dev);
2776 return ret;
2777 }
2778
2779 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
2780 {
2781 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2782 int ret;
2783
2784 switch (event) {
2785 case 0x80: /* Hotkeys and some system events */
2786 /*
2787 * Machines with this WMI GUID aren't supported due to bugs in
2788 * their AML.
2789 *
2790 * Return silently to avoid triggering a netlink event.
2791 */
2792 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
2793 return;
2794 toshiba_acpi_process_hotkeys(dev);
2795 break;
2796 case 0x81: /* Dock events */
2797 case 0x82:
2798 case 0x83:
2799 pr_info("Dock event received %x\n", event);
2800 break;
2801 case 0x88: /* Thermal events */
2802 pr_info("Thermal event received\n");
2803 break;
2804 case 0x8f: /* LID closed */
2805 case 0x90: /* LID is closed and Dock has been ejected */
2806 break;
2807 case 0x8c: /* SATA power events */
2808 case 0x8b:
2809 pr_info("SATA power event received %x\n", event);
2810 break;
2811 case 0x92: /* Keyboard backlight mode changed */
2812 /* Update sysfs entries */
2813 ret = sysfs_update_group(&acpi_dev->dev.kobj,
2814 &toshiba_attr_group);
2815 if (ret)
2816 pr_err("Unable to update sysfs entries\n");
2817 break;
2818 case 0x85: /* Unknown */
2819 case 0x8d: /* Unknown */
2820 case 0x8e: /* Unknown */
2821 case 0x94: /* Unknown */
2822 case 0x95: /* Unknown */
2823 default:
2824 pr_info("Unknown event received %x\n", event);
2825 break;
2826 }
2827
2828 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2829 dev_name(&acpi_dev->dev),
2830 event, 0);
2831 }
2832
2833 #ifdef CONFIG_PM_SLEEP
2834 static int toshiba_acpi_suspend(struct device *device)
2835 {
2836 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
2837
2838 if (dev->hotkey_dev) {
2839 u32 result;
2840
2841 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
2842 if (result != TOS_SUCCESS)
2843 pr_info("Unable to disable hotkeys\n");
2844 }
2845
2846 return 0;
2847 }
2848
2849 static int toshiba_acpi_resume(struct device *device)
2850 {
2851 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
2852
2853 if (dev->hotkey_dev) {
2854 int error = toshiba_acpi_enable_hotkeys(dev);
2855
2856 if (error)
2857 pr_info("Unable to re-enable hotkeys\n");
2858 }
2859
2860 return 0;
2861 }
2862 #endif
2863
2864 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
2865 toshiba_acpi_suspend, toshiba_acpi_resume);
2866
2867 static struct acpi_driver toshiba_acpi_driver = {
2868 .name = "Toshiba ACPI driver",
2869 .owner = THIS_MODULE,
2870 .ids = toshiba_device_ids,
2871 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
2872 .ops = {
2873 .add = toshiba_acpi_add,
2874 .remove = toshiba_acpi_remove,
2875 .notify = toshiba_acpi_notify,
2876 },
2877 .drv.pm = &toshiba_acpi_pm,
2878 };
2879
2880 static int __init toshiba_acpi_init(void)
2881 {
2882 int ret;
2883
2884 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
2885 if (!toshiba_proc_dir) {
2886 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
2887 return -ENODEV;
2888 }
2889
2890 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
2891 if (ret) {
2892 pr_err("Failed to register ACPI driver: %d\n", ret);
2893 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
2894 }
2895
2896 return ret;
2897 }
2898
2899 static void __exit toshiba_acpi_exit(void)
2900 {
2901 acpi_bus_unregister_driver(&toshiba_acpi_driver);
2902 if (toshiba_proc_dir)
2903 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
2904 }
2905
2906 module_init(toshiba_acpi_init);
2907 module_exit(toshiba_acpi_exit);
Linux with added FPC-III support