?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / drivers / platform / x86 / toshiba_acpi.c
blob80894454673947696747d770627a96dd37206609
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
4 *
5 * Copyright (C) 2002-2004 John Belmonte
6 * Copyright (C) 2008 Philip Langdale
7 * Copyright (C) 2010 Pierre Ducroquet
8 * Copyright (C) 2014-2016 Azael Avalos
9 *
10 * The devolpment page for this driver is located at
11 * http://memebeam.org/toys/ToshibaAcpiDriver.
12 *
13 * Credits:
14 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
15 * engineering the Windows drivers
16 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
17 * Rob Miller - TV out and hotkeys help
18 */
19
20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21
22 #define TOSHIBA_ACPI_VERSION "0.24"
23 #define PROC_INTERFACE_VERSION 1
24
25 #include <linux/compiler.h>
26 #include <linux/kernel.h>
27 #include <linux/module.h>
28 #include <linux/moduleparam.h>
29 #include <linux/init.h>
30 #include <linux/types.h>
31 #include <linux/proc_fs.h>
32 #include <linux/seq_file.h>
33 #include <linux/backlight.h>
34 #include <linux/input.h>
35 #include <linux/input/sparse-keymap.h>
36 #include <linux/leds.h>
37 #include <linux/slab.h>
38 #include <linux/workqueue.h>
39 #include <linux/i8042.h>
40 #include <linux/acpi.h>
41 #include <linux/dmi.h>
42 #include <linux/uaccess.h>
43 #include <linux/miscdevice.h>
44 #include <linux/rfkill.h>
45 #include <linux/iio/iio.h>
46 #include <linux/toshiba.h>
47 #include <acpi/video.h>
48
49 MODULE_AUTHOR("John Belmonte");
50 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
51 MODULE_LICENSE("GPL");
52
53 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
54
55 /* Scan code for Fn key on TOS1900 models */
56 #define TOS1900_FN_SCAN 0x6e
57
58 /* Toshiba ACPI method paths */
59 #define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
60
61 /*
62 * The Toshiba configuration interface is composed of the HCI and the SCI,
63 * which are defined as follows:
64 *
65 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
66 * be uniform across all their models. Ideally we would just call
67 * dedicated ACPI methods instead of using this primitive interface.
68 * However the ACPI methods seem to be incomplete in some areas (for
69 * example they allow setting, but not reading, the LCD brightness value),
70 * so this is still useful.
71 *
72 * SCI stands for "System Configuration Interface" which aim is to
73 * conceal differences in hardware between different models.
74 */
75
76 #define TCI_WORDS 6
77
78 /* Operations */
79 #define HCI_SET 0xff00
80 #define HCI_GET 0xfe00
81 #define SCI_OPEN 0xf100
82 #define SCI_CLOSE 0xf200
83 #define SCI_GET 0xf300
84 #define SCI_SET 0xf400
85
86 /* Return codes */
87 #define TOS_SUCCESS 0x0000
88 #define TOS_SUCCESS2 0x0001
89 #define TOS_OPEN_CLOSE_OK 0x0044
90 #define TOS_FAILURE 0x1000
91 #define TOS_NOT_SUPPORTED 0x8000
92 #define TOS_ALREADY_OPEN 0x8100
93 #define TOS_NOT_OPENED 0x8200
94 #define TOS_INPUT_DATA_ERROR 0x8300
95 #define TOS_WRITE_PROTECTED 0x8400
96 #define TOS_NOT_PRESENT 0x8600
97 #define TOS_FIFO_EMPTY 0x8c00
98 #define TOS_DATA_NOT_AVAILABLE 0x8d20
99 #define TOS_NOT_INITIALIZED 0x8d50
100 #define TOS_NOT_INSTALLED 0x8e00
101
102 /* Registers */
103 #define HCI_FAN 0x0004
104 #define HCI_TR_BACKLIGHT 0x0005
105 #define HCI_SYSTEM_EVENT 0x0016
106 #define HCI_VIDEO_OUT 0x001c
107 #define HCI_HOTKEY_EVENT 0x001e
108 #define HCI_LCD_BRIGHTNESS 0x002a
109 #define HCI_WIRELESS 0x0056
110 #define HCI_ACCELEROMETER 0x006d
111 #define HCI_COOLING_METHOD 0x007f
112 #define HCI_KBD_ILLUMINATION 0x0095
113 #define HCI_ECO_MODE 0x0097
114 #define HCI_ACCELEROMETER2 0x00a6
115 #define HCI_SYSTEM_INFO 0xc000
116 #define SCI_PANEL_POWER_ON 0x010d
117 #define SCI_ILLUMINATION 0x014e
118 #define SCI_USB_SLEEP_CHARGE 0x0150
119 #define SCI_KBD_ILLUM_STATUS 0x015c
120 #define SCI_USB_SLEEP_MUSIC 0x015e
121 #define SCI_USB_THREE 0x0169
122 #define SCI_TOUCHPAD 0x050e
123 #define SCI_KBD_FUNCTION_KEYS 0x0522
124
125 /* Field definitions */
126 #define HCI_ACCEL_MASK 0x7fff
127 #define HCI_ACCEL_DIRECTION_MASK 0x8000
128 #define HCI_HOTKEY_DISABLE 0x0b
129 #define HCI_HOTKEY_ENABLE 0x09
130 #define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
131 #define HCI_LCD_BRIGHTNESS_BITS 3
132 #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
133 #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
134 #define HCI_MISC_SHIFT 0x10
135 #define HCI_SYSTEM_TYPE1 0x10
136 #define HCI_SYSTEM_TYPE2 0x11
137 #define HCI_VIDEO_OUT_LCD 0x1
138 #define HCI_VIDEO_OUT_CRT 0x2
139 #define HCI_VIDEO_OUT_TV 0x4
140 #define SCI_KBD_MODE_MASK 0x1f
141 #define SCI_KBD_MODE_FNZ 0x1
142 #define SCI_KBD_MODE_AUTO 0x2
143 #define SCI_KBD_MODE_ON 0x8
144 #define SCI_KBD_MODE_OFF 0x10
145 #define SCI_KBD_TIME_MAX 0x3c001a
146 #define HCI_WIRELESS_STATUS 0x1
147 #define HCI_WIRELESS_WWAN 0x3
148 #define HCI_WIRELESS_WWAN_STATUS 0x2000
149 #define HCI_WIRELESS_WWAN_POWER 0x4000
150 #define SCI_USB_CHARGE_MODE_MASK 0xff
151 #define SCI_USB_CHARGE_DISABLED 0x00
152 #define SCI_USB_CHARGE_ALTERNATE 0x09
153 #define SCI_USB_CHARGE_TYPICAL 0x11
154 #define SCI_USB_CHARGE_AUTO 0x21
155 #define SCI_USB_CHARGE_BAT_MASK 0x7
156 #define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
157 #define SCI_USB_CHARGE_BAT_LVL_ON 0x4
158 #define SCI_USB_CHARGE_BAT_LVL 0x0200
159 #define SCI_USB_CHARGE_RAPID_DSP 0x0300
160
161 struct toshiba_acpi_dev {
162 struct acpi_device *acpi_dev;
163 const char *method_hci;
164 struct input_dev *hotkey_dev;
165 struct work_struct hotkey_work;
166 struct backlight_device *backlight_dev;
167 struct led_classdev led_dev;
168 struct led_classdev kbd_led;
169 struct led_classdev eco_led;
170 struct miscdevice miscdev;
171 struct rfkill *wwan_rfk;
172 struct iio_dev *indio_dev;
173
174 int force_fan;
175 int last_key_event;
176 int key_event_valid;
177 int kbd_type;
178 int kbd_mode;
179 int kbd_time;
180 int usbsc_bat_level;
181 int usbsc_mode_base;
182 int hotkey_event_type;
183 int max_cooling_method;
184
185 unsigned int illumination_supported:1;
186 unsigned int video_supported:1;
187 unsigned int fan_supported:1;
188 unsigned int system_event_supported:1;
189 unsigned int ntfy_supported:1;
190 unsigned int info_supported:1;
191 unsigned int tr_backlight_supported:1;
192 unsigned int kbd_illum_supported:1;
193 unsigned int touchpad_supported:1;
194 unsigned int eco_supported:1;
195 unsigned int accelerometer_supported:1;
196 unsigned int usb_sleep_charge_supported:1;
197 unsigned int usb_rapid_charge_supported:1;
198 unsigned int usb_sleep_music_supported:1;
199 unsigned int kbd_function_keys_supported:1;
200 unsigned int panel_power_on_supported:1;
201 unsigned int usb_three_supported:1;
202 unsigned int wwan_supported:1;
203 unsigned int cooling_method_supported:1;
204 unsigned int sysfs_created:1;
205 unsigned int special_functions;
206
207 bool kbd_event_generated;
208 bool kbd_led_registered;
209 bool illumination_led_registered;
210 bool eco_led_registered;
211 bool killswitch;
212 };
213
214 static struct toshiba_acpi_dev *toshiba_acpi;
215
216 static bool disable_hotkeys;
217 module_param(disable_hotkeys, bool, 0444);
218 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
219
220 static const struct acpi_device_id toshiba_device_ids[] = {
221 {"TOS6200", 0},
222 {"TOS6207", 0},
223 {"TOS6208", 0},
224 {"TOS1900", 0},
225 {"", 0},
226 };
227 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
228
229 static const struct key_entry toshiba_acpi_keymap[] = {
230 { KE_KEY, 0x9e, { KEY_RFKILL } },
231 { KE_KEY, 0x101, { KEY_MUTE } },
232 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
233 { KE_KEY, 0x103, { KEY_ZOOMIN } },
234 { KE_KEY, 0x10f, { KEY_TAB } },
235 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
236 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
237 { KE_KEY, 0x13b, { KEY_COFFEE } },
238 { KE_KEY, 0x13c, { KEY_BATTERY } },
239 { KE_KEY, 0x13d, { KEY_SLEEP } },
240 { KE_KEY, 0x13e, { KEY_SUSPEND } },
241 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
242 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
243 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
244 { KE_KEY, 0x142, { KEY_WLAN } },
245 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
246 { KE_KEY, 0x17f, { KEY_FN } },
247 { KE_KEY, 0xb05, { KEY_PROG2 } },
248 { KE_KEY, 0xb06, { KEY_WWW } },
249 { KE_KEY, 0xb07, { KEY_MAIL } },
250 { KE_KEY, 0xb30, { KEY_STOP } },
251 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
252 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
253 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
254 { KE_KEY, 0xb5a, { KEY_MEDIA } },
255 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
256 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
257 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
258 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
259 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
260 { KE_END, 0 },
261 };
262
263 static const struct key_entry toshiba_acpi_alt_keymap[] = {
264 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
265 { KE_KEY, 0x103, { KEY_ZOOMIN } },
266 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
267 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
268 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
269 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
270 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
271 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
272 { KE_KEY, 0x157, { KEY_MUTE } },
273 { KE_KEY, 0x158, { KEY_WLAN } },
274 { KE_END, 0 },
275 };
276
277 /*
278 * List of models which have a broken acpi-video backlight interface and thus
279 * need to use the toshiba (vendor) interface instead.
280 */
281 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
282 {}
283 };
284
285 /*
286 * Utility
287 */
288
289 static inline void _set_bit(u32 *word, u32 mask, int value)
290 {
291 *word = (*word & ~mask) | (mask * value);
292 }
293
294 /*
295 * ACPI interface wrappers
296 */
297
298 static int write_acpi_int(const char *methodName, int val)
299 {
300 acpi_status status;
301
302 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
303 return (status == AE_OK) ? 0 : -EIO;
304 }
305
306 /*
307 * Perform a raw configuration call. Here we don't care about input or output
308 * buffer format.
309 */
310 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
311 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
312 {
313 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
314 struct acpi_object_list params;
315 struct acpi_buffer results;
316 acpi_status status;
317 int i;
318
319 params.count = TCI_WORDS;
320 params.pointer = in_objs;
321 for (i = 0; i < TCI_WORDS; ++i) {
322 in_objs[i].type = ACPI_TYPE_INTEGER;
323 in_objs[i].integer.value = in[i];
324 }
325
326 results.length = sizeof(out_objs);
327 results.pointer = out_objs;
328
329 status = acpi_evaluate_object(dev->acpi_dev->handle,
330 (char *)dev->method_hci, &params,
331 &results);
332 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
333 for (i = 0; i < out_objs->package.count; ++i)
334 out[i] = out_objs->package.elements[i].integer.value;
335 }
336
337 return status;
338 }
339
340 /*
341 * Common hci tasks
342 *
343 * In addition to the ACPI status, the HCI system returns a result which
344 * may be useful (such as "not supported").
345 */
346
347 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
348 {
349 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
350 u32 out[TCI_WORDS];
351 acpi_status status = tci_raw(dev, in, out);
352
353 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
354 }
355
356 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
357 {
358 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
359 u32 out[TCI_WORDS];
360 acpi_status status = tci_raw(dev, in, out);
361
362 if (ACPI_FAILURE(status))
363 return TOS_FAILURE;
364
365 *out1 = out[2];
366
367 return out[0];
368 }
369
370 /*
371 * Common sci tasks
372 */
373
374 static int sci_open(struct toshiba_acpi_dev *dev)
375 {
376 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
377 u32 out[TCI_WORDS];
378 acpi_status status = tci_raw(dev, in, out);
379
380 if (ACPI_FAILURE(status)) {
381 pr_err("ACPI call to open SCI failed\n");
382 return 0;
383 }
384
385 if (out[0] == TOS_OPEN_CLOSE_OK) {
386 return 1;
387 } else if (out[0] == TOS_ALREADY_OPEN) {
388 pr_info("Toshiba SCI already opened\n");
389 return 1;
390 } else if (out[0] == TOS_NOT_SUPPORTED) {
391 /*
392 * Some BIOSes do not have the SCI open/close functions
393 * implemented and return 0x8000 (Not Supported), failing to
394 * register some supported features.
395 *
396 * Simply return 1 if we hit those affected laptops to make the
397 * supported features work.
398 *
399 * In the case that some laptops really do not support the SCI,
400 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
401 * and thus, not registering support for the queried feature.
402 */
403 return 1;
404 } else if (out[0] == TOS_NOT_PRESENT) {
405 pr_info("Toshiba SCI is not present\n");
406 }
407
408 return 0;
409 }
410
411 static void sci_close(struct toshiba_acpi_dev *dev)
412 {
413 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
414 u32 out[TCI_WORDS];
415 acpi_status status = tci_raw(dev, in, out);
416
417 if (ACPI_FAILURE(status)) {
418 pr_err("ACPI call to close SCI failed\n");
419 return;
420 }
421
422 if (out[0] == TOS_OPEN_CLOSE_OK)
423 return;
424 else if (out[0] == TOS_NOT_OPENED)
425 pr_info("Toshiba SCI not opened\n");
426 else if (out[0] == TOS_NOT_PRESENT)
427 pr_info("Toshiba SCI is not present\n");
428 }
429
430 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
431 {
432 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
433 u32 out[TCI_WORDS];
434 acpi_status status = tci_raw(dev, in, out);
435
436 if (ACPI_FAILURE(status))
437 return TOS_FAILURE;
438
439 *out1 = out[2];
440
441 return out[0];
442 }
443
444 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
445 {
446 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
447 u32 out[TCI_WORDS];
448 acpi_status status = tci_raw(dev, in, out);
449
450 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
451 }
452
453 /* Illumination support */
454 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
455 {
456 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
457 u32 out[TCI_WORDS];
458 acpi_status status;
459
460 dev->illumination_supported = 0;
461 dev->illumination_led_registered = false;
462
463 if (!sci_open(dev))
464 return;
465
466 status = tci_raw(dev, in, out);
467 sci_close(dev);
468 if (ACPI_FAILURE(status)) {
469 pr_err("ACPI call to query Illumination support failed\n");
470 return;
471 }
472
473 if (out[0] != TOS_SUCCESS)
474 return;
475
476 dev->illumination_supported = 1;
477 }
478
479 static void toshiba_illumination_set(struct led_classdev *cdev,
480 enum led_brightness brightness)
481 {
482 struct toshiba_acpi_dev *dev = container_of(cdev,
483 struct toshiba_acpi_dev, led_dev);
484 u32 result;
485 u32 state;
486
487 /* First request : initialize communication. */
488 if (!sci_open(dev))
489 return;
490
491 /* Switch the illumination on/off */
492 state = brightness ? 1 : 0;
493 result = sci_write(dev, SCI_ILLUMINATION, state);
494 sci_close(dev);
495 if (result == TOS_FAILURE)
496 pr_err("ACPI call for illumination failed\n");
497 }
498
499 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
500 {
501 struct toshiba_acpi_dev *dev = container_of(cdev,
502 struct toshiba_acpi_dev, led_dev);
503 u32 result;
504 u32 state;
505
506 /* First request : initialize communication. */
507 if (!sci_open(dev))
508 return LED_OFF;
509
510 /* Check the illumination */
511 result = sci_read(dev, SCI_ILLUMINATION, &state);
512 sci_close(dev);
513 if (result == TOS_FAILURE) {
514 pr_err("ACPI call for illumination failed\n");
515 return LED_OFF;
516 } else if (result != TOS_SUCCESS) {
517 return LED_OFF;
518 }
519
520 return state ? LED_FULL : LED_OFF;
521 }
522
523 /* KBD Illumination */
524 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
525 {
526 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
527 u32 out[TCI_WORDS];
528 acpi_status status;
529
530 dev->kbd_illum_supported = 0;
531 dev->kbd_led_registered = false;
532 dev->kbd_event_generated = false;
533
534 if (!sci_open(dev))
535 return;
536
537 status = tci_raw(dev, in, out);
538 sci_close(dev);
539 if (ACPI_FAILURE(status)) {
540 pr_err("ACPI call to query kbd illumination support failed\n");
541 return;
542 }
543
544 if (out[0] != TOS_SUCCESS)
545 return;
546
547 /*
548 * Check for keyboard backlight timeout max value,
549 * previous kbd backlight implementation set this to
550 * 0x3c0003, and now the new implementation set this
551 * to 0x3c001a, use this to distinguish between them.
552 */
553 if (out[3] == SCI_KBD_TIME_MAX)
554 dev->kbd_type = 2;
555 else
556 dev->kbd_type = 1;
557 /* Get the current keyboard backlight mode */
558 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
559 /* Get the current time (1-60 seconds) */
560 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
561 /* Flag as supported */
562 dev->kbd_illum_supported = 1;
563 }
564
565 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
566 {
567 u32 result;
568
569 if (!sci_open(dev))
570 return -EIO;
571
572 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
573 sci_close(dev);
574 if (result == TOS_FAILURE)
575 pr_err("ACPI call to set KBD backlight status failed\n");
576 else if (result == TOS_NOT_SUPPORTED)
577 return -ENODEV;
578
579 return result == TOS_SUCCESS ? 0 : -EIO;
580 }
581
582 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
583 {
584 u32 result;
585
586 if (!sci_open(dev))
587 return -EIO;
588
589 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
590 sci_close(dev);
591 if (result == TOS_FAILURE)
592 pr_err("ACPI call to get KBD backlight status failed\n");
593 else if (result == TOS_NOT_SUPPORTED)
594 return -ENODEV;
595
596 return result == TOS_SUCCESS ? 0 : -EIO;
597 }
598
599 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
600 {
601 struct toshiba_acpi_dev *dev = container_of(cdev,
602 struct toshiba_acpi_dev, kbd_led);
603 u32 result;
604 u32 state;
605
606 /* Check the keyboard backlight state */
607 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
608 if (result == TOS_FAILURE) {
609 pr_err("ACPI call to get the keyboard backlight failed\n");
610 return LED_OFF;
611 } else if (result != TOS_SUCCESS) {
612 return LED_OFF;
613 }
614
615 return state ? LED_FULL : LED_OFF;
616 }
617
618 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
619 enum led_brightness brightness)
620 {
621 struct toshiba_acpi_dev *dev = container_of(cdev,
622 struct toshiba_acpi_dev, kbd_led);
623 u32 result;
624 u32 state;
625
626 /* Set the keyboard backlight state */
627 state = brightness ? 1 : 0;
628 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
629 if (result == TOS_FAILURE)
630 pr_err("ACPI call to set KBD Illumination mode failed\n");
631 }
632
633 /* TouchPad support */
634 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
635 {
636 u32 result;
637
638 if (!sci_open(dev))
639 return -EIO;
640
641 result = sci_write(dev, SCI_TOUCHPAD, state);
642 sci_close(dev);
643 if (result == TOS_FAILURE)
644 pr_err("ACPI call to set the touchpad failed\n");
645 else if (result == TOS_NOT_SUPPORTED)
646 return -ENODEV;
647
648 return result == TOS_SUCCESS ? 0 : -EIO;
649 }
650
651 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
652 {
653 u32 result;
654
655 if (!sci_open(dev))
656 return -EIO;
657
658 result = sci_read(dev, SCI_TOUCHPAD, state);
659 sci_close(dev);
660 if (result == TOS_FAILURE)
661 pr_err("ACPI call to query the touchpad failed\n");
662 else if (result == TOS_NOT_SUPPORTED)
663 return -ENODEV;
664
665 return result == TOS_SUCCESS ? 0 : -EIO;
666 }
667
668 /* Eco Mode support */
669 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
670 {
671 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
672 u32 out[TCI_WORDS];
673 acpi_status status;
674
675 dev->eco_supported = 0;
676 dev->eco_led_registered = false;
677
678 status = tci_raw(dev, in, out);
679 if (ACPI_FAILURE(status)) {
680 pr_err("ACPI call to get ECO led failed\n");
681 return;
682 }
683
684 if (out[0] == TOS_INPUT_DATA_ERROR) {
685 /*
686 * If we receive 0x8300 (Input Data Error), it means that the
687 * LED device is present, but that we just screwed the input
688 * parameters.
689 *
690 * Let's query the status of the LED to see if we really have a
691 * success response, indicating the actual presense of the LED,
692 * bail out otherwise.
693 */
694 in[3] = 1;
695 status = tci_raw(dev, in, out);
696 if (ACPI_FAILURE(status)) {
697 pr_err("ACPI call to get ECO led failed\n");
698 return;
699 }
700
701 if (out[0] != TOS_SUCCESS)
702 return;
703
704 dev->eco_supported = 1;
705 }
706 }
707
708 static enum led_brightness
709 toshiba_eco_mode_get_status(struct led_classdev *cdev)
710 {
711 struct toshiba_acpi_dev *dev = container_of(cdev,
712 struct toshiba_acpi_dev, eco_led);
713 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
714 u32 out[TCI_WORDS];
715 acpi_status status;
716
717 status = tci_raw(dev, in, out);
718 if (ACPI_FAILURE(status)) {
719 pr_err("ACPI call to get ECO led failed\n");
720 return LED_OFF;
721 }
722
723 if (out[0] != TOS_SUCCESS)
724 return LED_OFF;
725
726 return out[2] ? LED_FULL : LED_OFF;
727 }
728
729 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
730 enum led_brightness brightness)
731 {
732 struct toshiba_acpi_dev *dev = container_of(cdev,
733 struct toshiba_acpi_dev, eco_led);
734 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
735 u32 out[TCI_WORDS];
736 acpi_status status;
737
738 /* Switch the Eco Mode led on/off */
739 in[2] = (brightness) ? 1 : 0;
740 status = tci_raw(dev, in, out);
741 if (ACPI_FAILURE(status))
742 pr_err("ACPI call to set ECO led failed\n");
743 }
744
745 /* Accelerometer support */
746 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
747 {
748 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
749 u32 out[TCI_WORDS];
750 acpi_status status;
751
752 dev->accelerometer_supported = 0;
753
754 /*
755 * Check if the accelerometer call exists,
756 * this call also serves as initialization
757 */
758 status = tci_raw(dev, in, out);
759 if (ACPI_FAILURE(status)) {
760 pr_err("ACPI call to query the accelerometer failed\n");
761 return;
762 }
763
764 if (out[0] != TOS_SUCCESS)
765 return;
766
767 dev->accelerometer_supported = 1;
768 }
769
770 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
771 u32 *xy, u32 *z)
772 {
773 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
774 u32 out[TCI_WORDS];
775 acpi_status status;
776
777 /* Check the Accelerometer status */
778 status = tci_raw(dev, in, out);
779 if (ACPI_FAILURE(status)) {
780 pr_err("ACPI call to query the accelerometer failed\n");
781 return -EIO;
782 }
783
784 if (out[0] == TOS_NOT_SUPPORTED)
785 return -ENODEV;
786
787 if (out[0] != TOS_SUCCESS)
788 return -EIO;
789
790 *xy = out[2];
791 *z = out[4];
792
793 return 0;
794 }
795
796 /* Sleep (Charge and Music) utilities support */
797 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
798 {
799 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
800 u32 out[TCI_WORDS];
801 acpi_status status;
802
803 dev->usb_sleep_charge_supported = 0;
804
805 if (!sci_open(dev))
806 return;
807
808 status = tci_raw(dev, in, out);
809 if (ACPI_FAILURE(status)) {
810 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
811 sci_close(dev);
812 return;
813 }
814
815 if (out[0] != TOS_SUCCESS) {
816 sci_close(dev);
817 return;
818 }
819
820 dev->usbsc_mode_base = out[4];
821
822 in[5] = SCI_USB_CHARGE_BAT_LVL;
823 status = tci_raw(dev, in, out);
824 sci_close(dev);
825 if (ACPI_FAILURE(status)) {
826 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
827 return;
828 }
829
830 if (out[0] != TOS_SUCCESS)
831 return;
832
833 dev->usbsc_bat_level = out[2];
834 /* Flag as supported */
835 dev->usb_sleep_charge_supported = 1;
836 }
837
838 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
839 u32 *mode)
840 {
841 u32 result;
842
843 if (!sci_open(dev))
844 return -EIO;
845
846 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
847 sci_close(dev);
848 if (result == TOS_FAILURE)
849 pr_err("ACPI call to set USB S&C mode failed\n");
850 else if (result == TOS_NOT_SUPPORTED)
851 return -ENODEV;
852
853 return result == TOS_SUCCESS ? 0 : -EIO;
854 }
855
856 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
857 u32 mode)
858 {
859 u32 result;
860
861 if (!sci_open(dev))
862 return -EIO;
863
864 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
865 sci_close(dev);
866 if (result == TOS_FAILURE)
867 pr_err("ACPI call to set USB S&C mode failed\n");
868 else if (result == TOS_NOT_SUPPORTED)
869 return -ENODEV;
870
871 return result == TOS_SUCCESS ? 0 : -EIO;
872 }
873
874 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
875 u32 *mode)
876 {
877 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
878 u32 out[TCI_WORDS];
879 acpi_status status;
880
881 if (!sci_open(dev))
882 return -EIO;
883
884 in[5] = SCI_USB_CHARGE_BAT_LVL;
885 status = tci_raw(dev, in, out);
886 sci_close(dev);
887 if (ACPI_FAILURE(status)) {
888 pr_err("ACPI call to get USB S&C battery level failed\n");
889 return -EIO;
890 }
891
892 if (out[0] == TOS_NOT_SUPPORTED)
893 return -ENODEV;
894
895 if (out[0] != TOS_SUCCESS)
896 return -EIO;
897
898 *mode = out[2];
899
900 return 0;
901
902 }
903
904 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
905 u32 mode)
906 {
907 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
908 u32 out[TCI_WORDS];
909 acpi_status status;
910
911 if (!sci_open(dev))
912 return -EIO;
913
914 in[2] = mode;
915 in[5] = SCI_USB_CHARGE_BAT_LVL;
916 status = tci_raw(dev, in, out);
917 sci_close(dev);
918 if (ACPI_FAILURE(status)) {
919 pr_err("ACPI call to set USB S&C battery level failed\n");
920 return -EIO;
921 }
922
923 if (out[0] == TOS_NOT_SUPPORTED)
924 return -ENODEV;
925
926 return out[0] == TOS_SUCCESS ? 0 : -EIO;
927 }
928
929 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
930 u32 *state)
931 {
932 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
933 u32 out[TCI_WORDS];
934 acpi_status status;
935
936 if (!sci_open(dev))
937 return -EIO;
938
939 in[5] = SCI_USB_CHARGE_RAPID_DSP;
940 status = tci_raw(dev, in, out);
941 sci_close(dev);
942 if (ACPI_FAILURE(status)) {
943 pr_err("ACPI call to get USB Rapid Charge failed\n");
944 return -EIO;
945 }
946
947 if (out[0] == TOS_NOT_SUPPORTED)
948 return -ENODEV;
949
950 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
951 return -EIO;
952
953 *state = out[2];
954
955 return 0;
956 }
957
958 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
959 u32 state)
960 {
961 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
962 u32 out[TCI_WORDS];
963 acpi_status status;
964
965 if (!sci_open(dev))
966 return -EIO;
967
968 in[2] = state;
969 in[5] = SCI_USB_CHARGE_RAPID_DSP;
970 status = tci_raw(dev, in, out);
971 sci_close(dev);
972 if (ACPI_FAILURE(status)) {
973 pr_err("ACPI call to set USB Rapid Charge failed\n");
974 return -EIO;
975 }
976
977 if (out[0] == TOS_NOT_SUPPORTED)
978 return -ENODEV;
979
980 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
981 }
982
983 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
984 {
985 u32 result;
986
987 if (!sci_open(dev))
988 return -EIO;
989
990 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
991 sci_close(dev);
992 if (result == TOS_FAILURE)
993 pr_err("ACPI call to get Sleep and Music failed\n");
994 else if (result == TOS_NOT_SUPPORTED)
995 return -ENODEV;
996
997 return result == TOS_SUCCESS ? 0 : -EIO;
998 }
999
1000 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1001 {
1002 u32 result;
1003
1004 if (!sci_open(dev))
1005 return -EIO;
1006
1007 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1008 sci_close(dev);
1009 if (result == TOS_FAILURE)
1010 pr_err("ACPI call to set Sleep and Music failed\n");
1011 else if (result == TOS_NOT_SUPPORTED)
1012 return -ENODEV;
1013
1014 return result == TOS_SUCCESS ? 0 : -EIO;
1015 }
1016
1017 /* Keyboard function keys */
1018 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1019 {
1020 u32 result;
1021
1022 if (!sci_open(dev))
1023 return -EIO;
1024
1025 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1026 sci_close(dev);
1027 if (result == TOS_FAILURE)
1028 pr_err("ACPI call to get KBD function keys failed\n");
1029 else if (result == TOS_NOT_SUPPORTED)
1030 return -ENODEV;
1031
1032 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1033 }
1034
1035 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1036 {
1037 u32 result;
1038
1039 if (!sci_open(dev))
1040 return -EIO;
1041
1042 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1043 sci_close(dev);
1044 if (result == TOS_FAILURE)
1045 pr_err("ACPI call to set KBD function keys failed\n");
1046 else if (result == TOS_NOT_SUPPORTED)
1047 return -ENODEV;
1048
1049 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1050 }
1051
1052 /* Panel Power ON */
1053 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1054 {
1055 u32 result;
1056
1057 if (!sci_open(dev))
1058 return -EIO;
1059
1060 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1061 sci_close(dev);
1062 if (result == TOS_FAILURE)
1063 pr_err("ACPI call to get Panel Power ON failed\n");
1064 else if (result == TOS_NOT_SUPPORTED)
1065 return -ENODEV;
1066
1067 return result == TOS_SUCCESS ? 0 : -EIO;
1068 }
1069
1070 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1071 {
1072 u32 result;
1073
1074 if (!sci_open(dev))
1075 return -EIO;
1076
1077 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1078 sci_close(dev);
1079 if (result == TOS_FAILURE)
1080 pr_err("ACPI call to set Panel Power ON failed\n");
1081 else if (result == TOS_NOT_SUPPORTED)
1082 return -ENODEV;
1083
1084 return result == TOS_SUCCESS ? 0 : -EIO;
1085 }
1086
1087 /* USB Three */
1088 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1089 {
1090 u32 result;
1091
1092 if (!sci_open(dev))
1093 return -EIO;
1094
1095 result = sci_read(dev, SCI_USB_THREE, state);
1096 sci_close(dev);
1097 if (result == TOS_FAILURE)
1098 pr_err("ACPI call to get USB 3 failed\n");
1099 else if (result == TOS_NOT_SUPPORTED)
1100 return -ENODEV;
1101
1102 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1103 }
1104
1105 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1106 {
1107 u32 result;
1108
1109 if (!sci_open(dev))
1110 return -EIO;
1111
1112 result = sci_write(dev, SCI_USB_THREE, state);
1113 sci_close(dev);
1114 if (result == TOS_FAILURE)
1115 pr_err("ACPI call to set USB 3 failed\n");
1116 else if (result == TOS_NOT_SUPPORTED)
1117 return -ENODEV;
1118
1119 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1120 }
1121
1122 /* Hotkey Event type */
1123 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1124 u32 *type)
1125 {
1126 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1127 u32 out[TCI_WORDS];
1128 acpi_status status;
1129
1130 status = tci_raw(dev, in, out);
1131 if (ACPI_FAILURE(status)) {
1132 pr_err("ACPI call to get System type failed\n");
1133 return -EIO;
1134 }
1135
1136 if (out[0] == TOS_NOT_SUPPORTED)
1137 return -ENODEV;
1138
1139 if (out[0] != TOS_SUCCESS)
1140 return -EIO;
1141
1142 *type = out[3];
1143
1144 return 0;
1145 }
1146
1147 /* Wireless status (RFKill, WLAN, BT, WWAN) */
1148 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1149 {
1150 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1151 u32 out[TCI_WORDS];
1152 acpi_status status;
1153
1154 in[3] = HCI_WIRELESS_STATUS;
1155 status = tci_raw(dev, in, out);
1156
1157 if (ACPI_FAILURE(status)) {
1158 pr_err("ACPI call to get Wireless status failed\n");
1159 return -EIO;
1160 }
1161
1162 if (out[0] == TOS_NOT_SUPPORTED)
1163 return -ENODEV;
1164
1165 if (out[0] != TOS_SUCCESS)
1166 return -EIO;
1167
1168 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1169
1170 return 0;
1171 }
1172
1173 /* WWAN */
1174 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1175 {
1176 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1177 u32 out[TCI_WORDS];
1178 acpi_status status;
1179
1180 dev->wwan_supported = 0;
1181
1182 /*
1183 * WWAN support can be queried by setting the in[3] value to
1184 * HCI_WIRELESS_WWAN (0x03).
1185 *
1186 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1187 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1188 *
1189 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1190 * or TOS_NOT_SUPPORTED (0x8000).
1191 */
1192 in[3] = HCI_WIRELESS_WWAN;
1193 status = tci_raw(dev, in, out);
1194 if (ACPI_FAILURE(status)) {
1195 pr_err("ACPI call to get WWAN status failed\n");
1196 return;
1197 }
1198
1199 if (out[0] != TOS_SUCCESS)
1200 return;
1201
1202 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1203 }
1204
1205 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1206 {
1207 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1208 u32 out[TCI_WORDS];
1209 acpi_status status;
1210
1211 in[3] = HCI_WIRELESS_WWAN_STATUS;
1212 status = tci_raw(dev, in, out);
1213 if (ACPI_FAILURE(status)) {
1214 pr_err("ACPI call to set WWAN status failed\n");
1215 return -EIO;
1216 }
1217
1218 if (out[0] == TOS_NOT_SUPPORTED)
1219 return -ENODEV;
1220
1221 if (out[0] != TOS_SUCCESS)
1222 return -EIO;
1223
1224 /*
1225 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1226 * (de)activate the device, but some others need the
1227 * HCI_WIRELESS_WWAN_POWER call as well.
1228 */
1229 in[3] = HCI_WIRELESS_WWAN_POWER;
1230 status = tci_raw(dev, in, out);
1231 if (ACPI_FAILURE(status)) {
1232 pr_err("ACPI call to set WWAN power failed\n");
1233 return -EIO;
1234 }
1235
1236 if (out[0] == TOS_NOT_SUPPORTED)
1237 return -ENODEV;
1238
1239 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1240 }
1241
1242 /* Cooling Method */
1243 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1244 {
1245 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1246 u32 out[TCI_WORDS];
1247 acpi_status status;
1248
1249 dev->cooling_method_supported = 0;
1250 dev->max_cooling_method = 0;
1251
1252 status = tci_raw(dev, in, out);
1253 if (ACPI_FAILURE(status)) {
1254 pr_err("ACPI call to get Cooling Method failed\n");
1255 return;
1256 }
1257
1258 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1259 return;
1260
1261 dev->cooling_method_supported = 1;
1262 dev->max_cooling_method = out[3];
1263 }
1264
1265 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1266 {
1267 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1268
1269 if (result == TOS_FAILURE)
1270 pr_err("ACPI call to get Cooling Method failed\n");
1271
1272 if (result == TOS_NOT_SUPPORTED)
1273 return -ENODEV;
1274
1275 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1276 }
1277
1278 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1279 {
1280 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1281
1282 if (result == TOS_FAILURE)
1283 pr_err("ACPI call to set Cooling Method failed\n");
1284
1285 if (result == TOS_NOT_SUPPORTED)
1286 return -ENODEV;
1287
1288 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1289 }
1290
1291 /* Transflective Backlight */
1292 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1293 {
1294 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1295
1296 if (result == TOS_FAILURE)
1297 pr_err("ACPI call to get Transflective Backlight failed\n");
1298 else if (result == TOS_NOT_SUPPORTED)
1299 return -ENODEV;
1300
1301 return result == TOS_SUCCESS ? 0 : -EIO;
1302 }
1303
1304 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1305 {
1306 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1307
1308 if (result == TOS_FAILURE)
1309 pr_err("ACPI call to set Transflective Backlight failed\n");
1310 else if (result == TOS_NOT_SUPPORTED)
1311 return -ENODEV;
1312
1313 return result == TOS_SUCCESS ? 0 : -EIO;
1314 }
1315
1316 static struct proc_dir_entry *toshiba_proc_dir;
1317
1318 /* LCD Brightness */
1319 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1320 {
1321 int brightness = 0;
1322 u32 result;
1323 u32 value;
1324
1325 if (dev->tr_backlight_supported) {
1326 int ret = get_tr_backlight_status(dev, &value);
1327
1328 if (ret)
1329 return ret;
1330 if (value)
1331 return 0;
1332 brightness++;
1333 }
1334
1335 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1336 if (result == TOS_FAILURE)
1337 pr_err("ACPI call to get LCD Brightness failed\n");
1338 else if (result == TOS_NOT_SUPPORTED)
1339 return -ENODEV;
1340
1341 return result == TOS_SUCCESS ?
1342 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1343 -EIO;
1344 }
1345
1346 static int get_lcd_brightness(struct backlight_device *bd)
1347 {
1348 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1349
1350 return __get_lcd_brightness(dev);
1351 }
1352
1353 static int lcd_proc_show(struct seq_file *m, void *v)
1354 {
1355 struct toshiba_acpi_dev *dev = m->private;
1356 int levels;
1357 int value;
1358
1359 if (!dev->backlight_dev)
1360 return -ENODEV;
1361
1362 levels = dev->backlight_dev->props.max_brightness + 1;
1363 value = get_lcd_brightness(dev->backlight_dev);
1364 if (value < 0) {
1365 pr_err("Error reading LCD brightness\n");
1366 return value;
1367 }
1368
1369 seq_printf(m, "brightness: %d\n", value);
1370 seq_printf(m, "brightness_levels: %d\n", levels);
1371
1372 return 0;
1373 }
1374
1375 static int lcd_proc_open(struct inode *inode, struct file *file)
1376 {
1377 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1378 }
1379
1380 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1381 {
1382 u32 result;
1383
1384 if (dev->tr_backlight_supported) {
1385 int ret = set_tr_backlight_status(dev, !value);
1386
1387 if (ret)
1388 return ret;
1389 if (value)
1390 value--;
1391 }
1392
1393 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1394 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1395 if (result == TOS_FAILURE)
1396 pr_err("ACPI call to set LCD Brightness failed\n");
1397 else if (result == TOS_NOT_SUPPORTED)
1398 return -ENODEV;
1399
1400 return result == TOS_SUCCESS ? 0 : -EIO;
1401 }
1402
1403 static int set_lcd_status(struct backlight_device *bd)
1404 {
1405 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1406
1407 return set_lcd_brightness(dev, bd->props.brightness);
1408 }
1409
1410 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1411 size_t count, loff_t *pos)
1412 {
1413 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1414 char cmd[42];
1415 size_t len;
1416 int levels;
1417 int value;
1418
1419 len = min(count, sizeof(cmd) - 1);
1420 if (copy_from_user(cmd, buf, len))
1421 return -EFAULT;
1422 cmd[len] = '\0';
1423
1424 levels = dev->backlight_dev->props.max_brightness + 1;
1425 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1426 value < 0 && value > levels)
1427 return -EINVAL;
1428
1429 if (set_lcd_brightness(dev, value))
1430 return -EIO;
1431
1432 return count;
1433 }
1434
1435 static const struct proc_ops lcd_proc_ops = {
1436 .proc_open = lcd_proc_open,
1437 .proc_read = seq_read,
1438 .proc_lseek = seq_lseek,
1439 .proc_release = single_release,
1440 .proc_write = lcd_proc_write,
1441 };
1442
1443 /* Video-Out */
1444 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1445 {
1446 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1447
1448 if (result == TOS_FAILURE)
1449 pr_err("ACPI call to get Video-Out failed\n");
1450 else if (result == TOS_NOT_SUPPORTED)
1451 return -ENODEV;
1452
1453 return result == TOS_SUCCESS ? 0 : -EIO;
1454 }
1455
1456 static int video_proc_show(struct seq_file *m, void *v)
1457 {
1458 struct toshiba_acpi_dev *dev = m->private;
1459 int is_lcd, is_crt, is_tv;
1460 u32 value;
1461
1462 if (get_video_status(dev, &value))
1463 return -EIO;
1464
1465 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1466 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1467 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1468
1469 seq_printf(m, "lcd_out: %d\n", is_lcd);
1470 seq_printf(m, "crt_out: %d\n", is_crt);
1471 seq_printf(m, "tv_out: %d\n", is_tv);
1472
1473 return 0;
1474 }
1475
1476 static int video_proc_open(struct inode *inode, struct file *file)
1477 {
1478 return single_open(file, video_proc_show, PDE_DATA(inode));
1479 }
1480
1481 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1482 size_t count, loff_t *pos)
1483 {
1484 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1485 char *buffer;
1486 char *cmd;
1487 int lcd_out, crt_out, tv_out;
1488 int remain = count;
1489 int value;
1490 int ret;
1491 u32 video_out;
1492
1493 cmd = memdup_user_nul(buf, count);
1494 if (IS_ERR(cmd))
1495 return PTR_ERR(cmd);
1496
1497 buffer = cmd;
1498
1499 /*
1500 * Scan expression. Multiple expressions may be delimited with ;
1501 * NOTE: To keep scanning simple, invalid fields are ignored.
1502 */
1503 while (remain) {
1504 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1505 lcd_out = value & 1;
1506 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1507 crt_out = value & 1;
1508 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1509 tv_out = value & 1;
1510 /* Advance to one character past the next ; */
1511 do {
1512 ++buffer;
1513 --remain;
1514 } while (remain && *(buffer - 1) != ';');
1515 }
1516
1517 kfree(cmd);
1518
1519 lcd_out = crt_out = tv_out = -1;
1520 ret = get_video_status(dev, &video_out);
1521 if (!ret) {
1522 unsigned int new_video_out = video_out;
1523
1524 if (lcd_out != -1)
1525 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1526 if (crt_out != -1)
1527 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1528 if (tv_out != -1)
1529 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1530 /*
1531 * To avoid unnecessary video disruption, only write the new
1532 * video setting if something changed.
1533 */
1534 if (new_video_out != video_out)
1535 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1536 }
1537
1538 return ret ? -EIO : count;
1539 }
1540
1541 static const struct proc_ops video_proc_ops = {
1542 .proc_open = video_proc_open,
1543 .proc_read = seq_read,
1544 .proc_lseek = seq_lseek,
1545 .proc_release = single_release,
1546 .proc_write = video_proc_write,
1547 };
1548
1549 /* Fan status */
1550 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1551 {
1552 u32 result = hci_read(dev, HCI_FAN, status);
1553
1554 if (result == TOS_FAILURE)
1555 pr_err("ACPI call to get Fan status failed\n");
1556 else if (result == TOS_NOT_SUPPORTED)
1557 return -ENODEV;
1558
1559 return result == TOS_SUCCESS ? 0 : -EIO;
1560 }
1561
1562 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1563 {
1564 u32 result = hci_write(dev, HCI_FAN, status);
1565
1566 if (result == TOS_FAILURE)
1567 pr_err("ACPI call to set Fan status failed\n");
1568 else if (result == TOS_NOT_SUPPORTED)
1569 return -ENODEV;
1570
1571 return result == TOS_SUCCESS ? 0 : -EIO;
1572 }
1573
1574 static int fan_proc_show(struct seq_file *m, void *v)
1575 {
1576 struct toshiba_acpi_dev *dev = m->private;
1577 u32 value;
1578
1579 if (get_fan_status(dev, &value))
1580 return -EIO;
1581
1582 seq_printf(m, "running: %d\n", (value > 0));
1583 seq_printf(m, "force_on: %d\n", dev->force_fan);
1584
1585 return 0;
1586 }
1587
1588 static int fan_proc_open(struct inode *inode, struct file *file)
1589 {
1590 return single_open(file, fan_proc_show, PDE_DATA(inode));
1591 }
1592
1593 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1594 size_t count, loff_t *pos)
1595 {
1596 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1597 char cmd[42];
1598 size_t len;
1599 int value;
1600
1601 len = min(count, sizeof(cmd) - 1);
1602 if (copy_from_user(cmd, buf, len))
1603 return -EFAULT;
1604 cmd[len] = '\0';
1605
1606 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1607 value != 0 && value != 1)
1608 return -EINVAL;
1609
1610 if (set_fan_status(dev, value))
1611 return -EIO;
1612
1613 dev->force_fan = value;
1614
1615 return count;
1616 }
1617
1618 static const struct proc_ops fan_proc_ops = {
1619 .proc_open = fan_proc_open,
1620 .proc_read = seq_read,
1621 .proc_lseek = seq_lseek,
1622 .proc_release = single_release,
1623 .proc_write = fan_proc_write,
1624 };
1625
1626 static int keys_proc_show(struct seq_file *m, void *v)
1627 {
1628 struct toshiba_acpi_dev *dev = m->private;
1629
1630 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1631 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1632
1633 return 0;
1634 }
1635
1636 static int keys_proc_open(struct inode *inode, struct file *file)
1637 {
1638 return single_open(file, keys_proc_show, PDE_DATA(inode));
1639 }
1640
1641 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1642 size_t count, loff_t *pos)
1643 {
1644 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1645 char cmd[42];
1646 size_t len;
1647 int value;
1648
1649 len = min(count, sizeof(cmd) - 1);
1650 if (copy_from_user(cmd, buf, len))
1651 return -EFAULT;
1652 cmd[len] = '\0';
1653
1654 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1655 dev->key_event_valid = 0;
1656 else
1657 return -EINVAL;
1658
1659 return count;
1660 }
1661
1662 static const struct proc_ops keys_proc_ops = {
1663 .proc_open = keys_proc_open,
1664 .proc_read = seq_read,
1665 .proc_lseek = seq_lseek,
1666 .proc_release = single_release,
1667 .proc_write = keys_proc_write,
1668 };
1669
1670 static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1671 {
1672 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1673 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1674 return 0;
1675 }
1676
1677 /*
1678 * Proc and module init
1679 */
1680
1681 #define PROC_TOSHIBA "toshiba"
1682
1683 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1684 {
1685 if (dev->backlight_dev)
1686 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1687 &lcd_proc_ops, dev);
1688 if (dev->video_supported)
1689 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1690 &video_proc_ops, dev);
1691 if (dev->fan_supported)
1692 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1693 &fan_proc_ops, dev);
1694 if (dev->hotkey_dev)
1695 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1696 &keys_proc_ops, dev);
1697 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1698 version_proc_show, dev);
1699 }
1700
1701 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1702 {
1703 if (dev->backlight_dev)
1704 remove_proc_entry("lcd", toshiba_proc_dir);
1705 if (dev->video_supported)
1706 remove_proc_entry("video", toshiba_proc_dir);
1707 if (dev->fan_supported)
1708 remove_proc_entry("fan", toshiba_proc_dir);
1709 if (dev->hotkey_dev)
1710 remove_proc_entry("keys", toshiba_proc_dir);
1711 remove_proc_entry("version", toshiba_proc_dir);
1712 }
1713
1714 static const struct backlight_ops toshiba_backlight_data = {
1715 .options = BL_CORE_SUSPENDRESUME,
1716 .get_brightness = get_lcd_brightness,
1717 .update_status = set_lcd_status,
1718 };
1719
1720 /* Keyboard backlight work */
1721 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1722
1723 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1724
1725 /*
1726 * Sysfs files
1727 */
1728 static ssize_t version_show(struct device *dev,
1729 struct device_attribute *attr, char *buf)
1730 {
1731 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1732 }
1733 static DEVICE_ATTR_RO(version);
1734
1735 static ssize_t fan_store(struct device *dev,
1736 struct device_attribute *attr,
1737 const char *buf, size_t count)
1738 {
1739 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1740 int state;
1741 int ret;
1742
1743 ret = kstrtoint(buf, 0, &state);
1744 if (ret)
1745 return ret;
1746
1747 if (state != 0 && state != 1)
1748 return -EINVAL;
1749
1750 ret = set_fan_status(toshiba, state);
1751 if (ret)
1752 return ret;
1753
1754 return count;
1755 }
1756
1757 static ssize_t fan_show(struct device *dev,
1758 struct device_attribute *attr, char *buf)
1759 {
1760 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1761 u32 value;
1762 int ret;
1763
1764 ret = get_fan_status(toshiba, &value);
1765 if (ret)
1766 return ret;
1767
1768 return sprintf(buf, "%d\n", value);
1769 }
1770 static DEVICE_ATTR_RW(fan);
1771
1772 static ssize_t kbd_backlight_mode_store(struct device *dev,
1773 struct device_attribute *attr,
1774 const char *buf, size_t count)
1775 {
1776 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1777 int mode;
1778 int ret;
1779
1780
1781 ret = kstrtoint(buf, 0, &mode);
1782 if (ret)
1783 return ret;
1784
1785 /* Check for supported modes depending on keyboard backlight type */
1786 if (toshiba->kbd_type == 1) {
1787 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1788 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1789 return -EINVAL;
1790 } else if (toshiba->kbd_type == 2) {
1791 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1792 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1793 mode != SCI_KBD_MODE_OFF)
1794 return -EINVAL;
1795 }
1796
1797 /*
1798 * Set the Keyboard Backlight Mode where:
1799 * Auto - KBD backlight turns off automatically in given time
1800 * FN-Z - KBD backlight "toggles" when hotkey pressed
1801 * ON - KBD backlight is always on
1802 * OFF - KBD backlight is always off
1803 */
1804
1805 /* Only make a change if the actual mode has changed */
1806 if (toshiba->kbd_mode != mode) {
1807 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1808 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1809
1810 /* OR the "base time" to the actual method format */
1811 if (toshiba->kbd_type == 1) {
1812 /* Type 1 requires the current mode */
1813 time |= toshiba->kbd_mode;
1814 } else if (toshiba->kbd_type == 2) {
1815 /* Type 2 requires the desired mode */
1816 time |= mode;
1817 }
1818
1819 ret = toshiba_kbd_illum_status_set(toshiba, time);
1820 if (ret)
1821 return ret;
1822
1823 toshiba->kbd_mode = mode;
1824 toshiba_acpi->kbd_mode = mode;
1825
1826 /*
1827 * Some laptop models with the second generation backlit
1828 * keyboard (type 2) do not generate the keyboard backlight
1829 * changed event (0x92), and thus, the driver will never update
1830 * the sysfs entries.
1831 *
1832 * The event is generated right when changing the keyboard
1833 * backlight mode and the *notify function will set the
1834 * kbd_event_generated to true.
1835 *
1836 * In case the event is not generated, schedule the keyboard
1837 * backlight work to update the sysfs entries and emulate the
1838 * event via genetlink.
1839 */
1840 if (toshiba->kbd_type == 2 &&
1841 !toshiba->kbd_event_generated)
1842 schedule_work(&kbd_bl_work);
1843 }
1844
1845 return count;
1846 }
1847
1848 static ssize_t kbd_backlight_mode_show(struct device *dev,
1849 struct device_attribute *attr,
1850 char *buf)
1851 {
1852 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1853 u32 time;
1854
1855 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1856 return -EIO;
1857
1858 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1859 }
1860 static DEVICE_ATTR_RW(kbd_backlight_mode);
1861
1862 static ssize_t kbd_type_show(struct device *dev,
1863 struct device_attribute *attr, char *buf)
1864 {
1865 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1866
1867 return sprintf(buf, "%d\n", toshiba->kbd_type);
1868 }
1869 static DEVICE_ATTR_RO(kbd_type);
1870
1871 static ssize_t available_kbd_modes_show(struct device *dev,
1872 struct device_attribute *attr,
1873 char *buf)
1874 {
1875 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1876
1877 if (toshiba->kbd_type == 1)
1878 return sprintf(buf, "0x%x 0x%x\n",
1879 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1880
1881 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1882 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1883 }
1884 static DEVICE_ATTR_RO(available_kbd_modes);
1885
1886 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1887 struct device_attribute *attr,
1888 const char *buf, size_t count)
1889 {
1890 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1891 int time;
1892 int ret;
1893
1894 ret = kstrtoint(buf, 0, &time);
1895 if (ret)
1896 return ret;
1897
1898 /* Check for supported values depending on kbd_type */
1899 if (toshiba->kbd_type == 1) {
1900 if (time < 0 || time > 60)
1901 return -EINVAL;
1902 } else if (toshiba->kbd_type == 2) {
1903 if (time < 1 || time > 60)
1904 return -EINVAL;
1905 }
1906
1907 /* Set the Keyboard Backlight Timeout */
1908
1909 /* Only make a change if the actual timeout has changed */
1910 if (toshiba->kbd_time != time) {
1911 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1912 time = time << HCI_MISC_SHIFT;
1913 /* OR the "base time" to the actual method format */
1914 if (toshiba->kbd_type == 1)
1915 time |= SCI_KBD_MODE_FNZ;
1916 else if (toshiba->kbd_type == 2)
1917 time |= SCI_KBD_MODE_AUTO;
1918
1919 ret = toshiba_kbd_illum_status_set(toshiba, time);
1920 if (ret)
1921 return ret;
1922
1923 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1924 }
1925
1926 return count;
1927 }
1928
1929 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1930 struct device_attribute *attr,
1931 char *buf)
1932 {
1933 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1934 u32 time;
1935
1936 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1937 return -EIO;
1938
1939 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1940 }
1941 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1942
1943 static ssize_t touchpad_store(struct device *dev,
1944 struct device_attribute *attr,
1945 const char *buf, size_t count)
1946 {
1947 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1948 int state;
1949 int ret;
1950
1951 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1952 ret = kstrtoint(buf, 0, &state);
1953 if (ret)
1954 return ret;
1955 if (state != 0 && state != 1)
1956 return -EINVAL;
1957
1958 ret = toshiba_touchpad_set(toshiba, state);
1959 if (ret)
1960 return ret;
1961
1962 return count;
1963 }
1964
1965 static ssize_t touchpad_show(struct device *dev,
1966 struct device_attribute *attr, char *buf)
1967 {
1968 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1969 u32 state;
1970 int ret;
1971
1972 ret = toshiba_touchpad_get(toshiba, &state);
1973 if (ret < 0)
1974 return ret;
1975
1976 return sprintf(buf, "%i\n", state);
1977 }
1978 static DEVICE_ATTR_RW(touchpad);
1979
1980 static ssize_t usb_sleep_charge_show(struct device *dev,
1981 struct device_attribute *attr, char *buf)
1982 {
1983 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1984 u32 mode;
1985 int ret;
1986
1987 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
1988 if (ret < 0)
1989 return ret;
1990
1991 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
1992 }
1993
1994 static ssize_t usb_sleep_charge_store(struct device *dev,
1995 struct device_attribute *attr,
1996 const char *buf, size_t count)
1997 {
1998 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1999 int state;
2000 u32 mode;
2001 int ret;
2002
2003 ret = kstrtoint(buf, 0, &state);
2004 if (ret)
2005 return ret;
2006 /*
2007 * Check for supported values, where:
2008 * 0 - Disabled
2009 * 1 - Alternate (Non USB conformant devices that require more power)
2010 * 2 - Auto (USB conformant devices)
2011 * 3 - Typical
2012 */
2013 if (state != 0 && state != 1 && state != 2 && state != 3)
2014 return -EINVAL;
2015
2016 /* Set the USB charging mode to internal value */
2017 mode = toshiba->usbsc_mode_base;
2018 if (state == 0)
2019 mode |= SCI_USB_CHARGE_DISABLED;
2020 else if (state == 1)
2021 mode |= SCI_USB_CHARGE_ALTERNATE;
2022 else if (state == 2)
2023 mode |= SCI_USB_CHARGE_AUTO;
2024 else if (state == 3)
2025 mode |= SCI_USB_CHARGE_TYPICAL;
2026
2027 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2028 if (ret)
2029 return ret;
2030
2031 return count;
2032 }
2033 static DEVICE_ATTR_RW(usb_sleep_charge);
2034
2035 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2036 struct device_attribute *attr,
2037 char *buf)
2038 {
2039 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2040 int bat_lvl, status;
2041 u32 state;
2042 int ret;
2043 int tmp;
2044
2045 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2046 if (ret < 0)
2047 return ret;
2048
2049 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2050 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2051 status = (tmp == 0x4) ? 1 : 0;
2052 /* Determine the battery level set */
2053 bat_lvl = state >> HCI_MISC_SHIFT;
2054
2055 return sprintf(buf, "%d %d\n", status, bat_lvl);
2056 }
2057
2058 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2059 struct device_attribute *attr,
2060 const char *buf, size_t count)
2061 {
2062 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2063 u32 status;
2064 int value;
2065 int ret;
2066 int tmp;
2067
2068 ret = kstrtoint(buf, 0, &value);
2069 if (ret)
2070 return ret;
2071
2072 /*
2073 * Set the status of the function:
2074 * 0 - Disabled
2075 * 1-100 - Enabled
2076 */
2077 if (value < 0 || value > 100)
2078 return -EINVAL;
2079
2080 if (value == 0) {
2081 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2082 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2083 } else {
2084 tmp = value << HCI_MISC_SHIFT;
2085 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2086 }
2087 ret = toshiba_sleep_functions_status_set(toshiba, status);
2088 if (ret < 0)
2089 return ret;
2090
2091 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2092
2093 return count;
2094 }
2095 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2096
2097 static ssize_t usb_rapid_charge_show(struct device *dev,
2098 struct device_attribute *attr, char *buf)
2099 {
2100 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2101 u32 state;
2102 int ret;
2103
2104 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2105 if (ret < 0)
2106 return ret;
2107
2108 return sprintf(buf, "%d\n", state);
2109 }
2110
2111 static ssize_t usb_rapid_charge_store(struct device *dev,
2112 struct device_attribute *attr,
2113 const char *buf, size_t count)
2114 {
2115 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2116 int state;
2117 int ret;
2118
2119 ret = kstrtoint(buf, 0, &state);
2120 if (ret)
2121 return ret;
2122 if (state != 0 && state != 1)
2123 return -EINVAL;
2124
2125 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2126 if (ret)
2127 return ret;
2128
2129 return count;
2130 }
2131 static DEVICE_ATTR_RW(usb_rapid_charge);
2132
2133 static ssize_t usb_sleep_music_show(struct device *dev,
2134 struct device_attribute *attr, char *buf)
2135 {
2136 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2137 u32 state;
2138 int ret;
2139
2140 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2141 if (ret < 0)
2142 return ret;
2143
2144 return sprintf(buf, "%d\n", state);
2145 }
2146
2147 static ssize_t usb_sleep_music_store(struct device *dev,
2148 struct device_attribute *attr,
2149 const char *buf, size_t count)
2150 {
2151 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2152 int state;
2153 int ret;
2154
2155 ret = kstrtoint(buf, 0, &state);
2156 if (ret)
2157 return ret;
2158 if (state != 0 && state != 1)
2159 return -EINVAL;
2160
2161 ret = toshiba_usb_sleep_music_set(toshiba, state);
2162 if (ret)
2163 return ret;
2164
2165 return count;
2166 }
2167 static DEVICE_ATTR_RW(usb_sleep_music);
2168
2169 static ssize_t kbd_function_keys_show(struct device *dev,
2170 struct device_attribute *attr, char *buf)
2171 {
2172 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2173 int mode;
2174 int ret;
2175
2176 ret = toshiba_function_keys_get(toshiba, &mode);
2177 if (ret < 0)
2178 return ret;
2179
2180 return sprintf(buf, "%d\n", mode);
2181 }
2182
2183 static ssize_t kbd_function_keys_store(struct device *dev,
2184 struct device_attribute *attr,
2185 const char *buf, size_t count)
2186 {
2187 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2188 int mode;
2189 int ret;
2190
2191 ret = kstrtoint(buf, 0, &mode);
2192 if (ret)
2193 return ret;
2194 /*
2195 * Check for the function keys mode where:
2196 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2197 * 1 - Special functions (Opposite of the above setting)
2198 */
2199 if (mode != 0 && mode != 1)
2200 return -EINVAL;
2201
2202 ret = toshiba_function_keys_set(toshiba, mode);
2203 if (ret)
2204 return ret;
2205
2206 pr_info("Reboot for changes to KBD Function Keys to take effect");
2207
2208 return count;
2209 }
2210 static DEVICE_ATTR_RW(kbd_function_keys);
2211
2212 static ssize_t panel_power_on_show(struct device *dev,
2213 struct device_attribute *attr, char *buf)
2214 {
2215 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2216 u32 state;
2217 int ret;
2218
2219 ret = toshiba_panel_power_on_get(toshiba, &state);
2220 if (ret < 0)
2221 return ret;
2222
2223 return sprintf(buf, "%d\n", state);
2224 }
2225
2226 static ssize_t panel_power_on_store(struct device *dev,
2227 struct device_attribute *attr,
2228 const char *buf, size_t count)
2229 {
2230 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2231 int state;
2232 int ret;
2233
2234 ret = kstrtoint(buf, 0, &state);
2235 if (ret)
2236 return ret;
2237 if (state != 0 && state != 1)
2238 return -EINVAL;
2239
2240 ret = toshiba_panel_power_on_set(toshiba, state);
2241 if (ret)
2242 return ret;
2243
2244 pr_info("Reboot for changes to Panel Power ON to take effect");
2245
2246 return count;
2247 }
2248 static DEVICE_ATTR_RW(panel_power_on);
2249
2250 static ssize_t usb_three_show(struct device *dev,
2251 struct device_attribute *attr, char *buf)
2252 {
2253 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2254 u32 state;
2255 int ret;
2256
2257 ret = toshiba_usb_three_get(toshiba, &state);
2258 if (ret < 0)
2259 return ret;
2260
2261 return sprintf(buf, "%d\n", state);
2262 }
2263
2264 static ssize_t usb_three_store(struct device *dev,
2265 struct device_attribute *attr,
2266 const char *buf, size_t count)
2267 {
2268 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2269 int state;
2270 int ret;
2271
2272 ret = kstrtoint(buf, 0, &state);
2273 if (ret)
2274 return ret;
2275 /*
2276 * Check for USB 3 mode where:
2277 * 0 - Disabled (Acts like a USB 2 port, saving power)
2278 * 1 - Enabled
2279 */
2280 if (state != 0 && state != 1)
2281 return -EINVAL;
2282
2283 ret = toshiba_usb_three_set(toshiba, state);
2284 if (ret)
2285 return ret;
2286
2287 pr_info("Reboot for changes to USB 3 to take effect");
2288
2289 return count;
2290 }
2291 static DEVICE_ATTR_RW(usb_three);
2292
2293 static ssize_t cooling_method_show(struct device *dev,
2294 struct device_attribute *attr, char *buf)
2295 {
2296 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2297 int state;
2298 int ret;
2299
2300 ret = toshiba_cooling_method_get(toshiba, &state);
2301 if (ret < 0)
2302 return ret;
2303
2304 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2305 }
2306
2307 static ssize_t cooling_method_store(struct device *dev,
2308 struct device_attribute *attr,
2309 const char *buf, size_t count)
2310 {
2311 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2312 int state;
2313 int ret;
2314
2315 ret = kstrtoint(buf, 0, &state);
2316 if (ret)
2317 return ret;
2318
2319 /*
2320 * Check for supported values
2321 * Depending on the laptop model, some only support these two:
2322 * 0 - Maximum Performance
2323 * 1 - Battery Optimized
2324 *
2325 * While some others support all three methods:
2326 * 0 - Maximum Performance
2327 * 1 - Performance
2328 * 2 - Battery Optimized
2329 */
2330 if (state < 0 || state > toshiba->max_cooling_method)
2331 return -EINVAL;
2332
2333 ret = toshiba_cooling_method_set(toshiba, state);
2334 if (ret)
2335 return ret;
2336
2337 return count;
2338 }
2339 static DEVICE_ATTR_RW(cooling_method);
2340
2341 static struct attribute *toshiba_attributes[] = {
2342 &dev_attr_version.attr,
2343 &dev_attr_fan.attr,
2344 &dev_attr_kbd_backlight_mode.attr,
2345 &dev_attr_kbd_type.attr,
2346 &dev_attr_available_kbd_modes.attr,
2347 &dev_attr_kbd_backlight_timeout.attr,
2348 &dev_attr_touchpad.attr,
2349 &dev_attr_usb_sleep_charge.attr,
2350 &dev_attr_sleep_functions_on_battery.attr,
2351 &dev_attr_usb_rapid_charge.attr,
2352 &dev_attr_usb_sleep_music.attr,
2353 &dev_attr_kbd_function_keys.attr,
2354 &dev_attr_panel_power_on.attr,
2355 &dev_attr_usb_three.attr,
2356 &dev_attr_cooling_method.attr,
2357 NULL,
2358 };
2359
2360 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2361 struct attribute *attr, int idx)
2362 {
2363 struct device *dev = container_of(kobj, struct device, kobj);
2364 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2365 bool exists = true;
2366
2367 if (attr == &dev_attr_fan.attr)
2368 exists = (drv->fan_supported) ? true : false;
2369 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2370 exists = (drv->kbd_illum_supported) ? true : false;
2371 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2372 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2373 else if (attr == &dev_attr_touchpad.attr)
2374 exists = (drv->touchpad_supported) ? true : false;
2375 else if (attr == &dev_attr_usb_sleep_charge.attr)
2376 exists = (drv->usb_sleep_charge_supported) ? true : false;
2377 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2378 exists = (drv->usb_sleep_charge_supported) ? true : false;
2379 else if (attr == &dev_attr_usb_rapid_charge.attr)
2380 exists = (drv->usb_rapid_charge_supported) ? true : false;
2381 else if (attr == &dev_attr_usb_sleep_music.attr)
2382 exists = (drv->usb_sleep_music_supported) ? true : false;
2383 else if (attr == &dev_attr_kbd_function_keys.attr)
2384 exists = (drv->kbd_function_keys_supported) ? true : false;
2385 else if (attr == &dev_attr_panel_power_on.attr)
2386 exists = (drv->panel_power_on_supported) ? true : false;
2387 else if (attr == &dev_attr_usb_three.attr)
2388 exists = (drv->usb_three_supported) ? true : false;
2389 else if (attr == &dev_attr_cooling_method.attr)
2390 exists = (drv->cooling_method_supported) ? true : false;
2391
2392 return exists ? attr->mode : 0;
2393 }
2394
2395 static const struct attribute_group toshiba_attr_group = {
2396 .is_visible = toshiba_sysfs_is_visible,
2397 .attrs = toshiba_attributes,
2398 };
2399
2400 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2401 {
2402 /* Update the sysfs entries */
2403 if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2404 &toshiba_attr_group))
2405 pr_err("Unable to update sysfs entries\n");
2406
2407 /* Notify LED subsystem about keyboard backlight change */
2408 if (toshiba_acpi->kbd_type == 2 &&
2409 toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2410 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2411 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2412 LED_FULL : LED_OFF);
2413
2414 /* Emulate the keyboard backlight event */
2415 acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2416 dev_name(&toshiba_acpi->acpi_dev->dev),
2417 0x92, 0);
2418 }
2419
2420 /*
2421 * IIO device
2422 */
2423
2424 enum toshiba_iio_accel_chan {
2425 AXIS_X,
2426 AXIS_Y,
2427 AXIS_Z
2428 };
2429
2430 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2431 {
2432 u32 xyval, zval;
2433 int ret;
2434
2435 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2436 if (ret < 0)
2437 return ret;
2438
2439 switch (chan) {
2440 case AXIS_X:
2441 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2442 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2443 case AXIS_Y:
2444 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2445 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2446 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2447 case AXIS_Z:
2448 return zval & HCI_ACCEL_DIRECTION_MASK ?
2449 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2450 }
2451
2452 return ret;
2453 }
2454
2455 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2456 struct iio_chan_spec const *chan,
2457 int *val, int *val2, long mask)
2458 {
2459 int ret;
2460
2461 switch (mask) {
2462 case IIO_CHAN_INFO_RAW:
2463 ret = toshiba_iio_accel_get_axis(chan->channel);
2464 if (ret == -EIO || ret == -ENODEV)
2465 return ret;
2466
2467 *val = ret;
2468
2469 return IIO_VAL_INT;
2470 }
2471
2472 return -EINVAL;
2473 }
2474
2475 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2476 .type = IIO_ACCEL, \
2477 .modified = 1, \
2478 .channel = chan, \
2479 .channel2 = IIO_MOD_##axis, \
2480 .output = 1, \
2481 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2482 }
2483
2484 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2485 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2486 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2487 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2488 };
2489
2490 static const struct iio_info toshiba_iio_accel_info = {
2491 .read_raw = &toshiba_iio_accel_read_raw,
2492 };
2493
2494 /*
2495 * Misc device
2496 */
2497 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2498 {
2499 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2500 regs->edx, regs->esi, regs->edi };
2501 u32 out[TCI_WORDS];
2502 acpi_status status;
2503
2504 status = tci_raw(toshiba_acpi, in, out);
2505 if (ACPI_FAILURE(status)) {
2506 pr_err("ACPI call to query SMM registers failed\n");
2507 return -EIO;
2508 }
2509
2510 /* Fillout the SMM struct with the TCI call results */
2511 regs->eax = out[0];
2512 regs->ebx = out[1];
2513 regs->ecx = out[2];
2514 regs->edx = out[3];
2515 regs->esi = out[4];
2516 regs->edi = out[5];
2517
2518 return 0;
2519 }
2520
2521 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2522 unsigned long arg)
2523 {
2524 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2525 SMMRegisters regs;
2526 int ret;
2527
2528 if (!argp)
2529 return -EINVAL;
2530
2531 switch (cmd) {
2532 case TOSH_SMM:
2533 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2534 return -EFAULT;
2535 ret = toshiba_acpi_smm_bridge(&regs);
2536 if (ret)
2537 return ret;
2538 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2539 return -EFAULT;
2540 break;
2541 case TOSHIBA_ACPI_SCI:
2542 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2543 return -EFAULT;
2544 /* Ensure we are being called with a SCI_{GET, SET} register */
2545 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2546 return -EINVAL;
2547 if (!sci_open(toshiba_acpi))
2548 return -EIO;
2549 ret = toshiba_acpi_smm_bridge(&regs);
2550 sci_close(toshiba_acpi);
2551 if (ret)
2552 return ret;
2553 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2554 return -EFAULT;
2555 break;
2556 default:
2557 return -EINVAL;
2558 }
2559
2560 return 0;
2561 }
2562
2563 static const struct file_operations toshiba_acpi_fops = {
2564 .owner = THIS_MODULE,
2565 .unlocked_ioctl = toshiba_acpi_ioctl,
2566 .llseek = noop_llseek,
2567 };
2568
2569 /*
2570 * WWAN RFKill handlers
2571 */
2572 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2573 {
2574 struct toshiba_acpi_dev *dev = data;
2575 int ret;
2576
2577 ret = toshiba_wireless_status(dev);
2578 if (ret)
2579 return ret;
2580
2581 if (!dev->killswitch)
2582 return 0;
2583
2584 return toshiba_wwan_set(dev, !blocked);
2585 }
2586
2587 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2588 {
2589 struct toshiba_acpi_dev *dev = data;
2590
2591 if (toshiba_wireless_status(dev))
2592 return;
2593
2594 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2595 }
2596
2597 static const struct rfkill_ops wwan_rfk_ops = {
2598 .set_block = toshiba_acpi_wwan_set_block,
2599 .poll = toshiba_acpi_wwan_poll,
2600 };
2601
2602 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2603 {
2604 int ret = toshiba_wireless_status(dev);
2605
2606 if (ret)
2607 return ret;
2608
2609 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2610 &dev->acpi_dev->dev,
2611 RFKILL_TYPE_WWAN,
2612 &wwan_rfk_ops,
2613 dev);
2614 if (!dev->wwan_rfk) {
2615 pr_err("Unable to allocate WWAN rfkill device\n");
2616 return -ENOMEM;
2617 }
2618
2619 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2620
2621 ret = rfkill_register(dev->wwan_rfk);
2622 if (ret) {
2623 pr_err("Unable to register WWAN rfkill device\n");
2624 rfkill_destroy(dev->wwan_rfk);
2625 }
2626
2627 return ret;
2628 }
2629
2630 /*
2631 * Hotkeys
2632 */
2633 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2634 {
2635 acpi_status status;
2636 u32 result;
2637
2638 status = acpi_evaluate_object(dev->acpi_dev->handle,
2639 "ENAB", NULL, NULL);
2640 if (ACPI_FAILURE(status))
2641 return -ENODEV;
2642
2643 /*
2644 * Enable the "Special Functions" mode only if they are
2645 * supported and if they are activated.
2646 */
2647 if (dev->kbd_function_keys_supported && dev->special_functions)
2648 result = hci_write(dev, HCI_HOTKEY_EVENT,
2649 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2650 else
2651 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2652
2653 if (result == TOS_FAILURE)
2654 return -EIO;
2655 else if (result == TOS_NOT_SUPPORTED)
2656 return -ENODEV;
2657
2658 return 0;
2659 }
2660
2661 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2662 struct serio *port)
2663 {
2664 if (str & I8042_STR_AUXDATA)
2665 return false;
2666
2667 if (unlikely(data == 0xe0))
2668 return false;
2669
2670 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2671 schedule_work(&toshiba_acpi->hotkey_work);
2672 return true;
2673 }
2674
2675 return false;
2676 }
2677
2678 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2679 {
2680 acpi_handle ec_handle = ec_get_handle();
2681 acpi_status status;
2682
2683 if (!ec_handle)
2684 return;
2685
2686 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2687 if (ACPI_FAILURE(status))
2688 pr_err("ACPI NTFY method execution failed\n");
2689 }
2690
2691 /*
2692 * Returns hotkey scancode, or < 0 on failure.
2693 */
2694 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2695 {
2696 unsigned long long value;
2697 acpi_status status;
2698
2699 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2700 NULL, &value);
2701 if (ACPI_FAILURE(status)) {
2702 pr_err("ACPI INFO method execution failed\n");
2703 return -EIO;
2704 }
2705
2706 return value;
2707 }
2708
2709 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2710 int scancode)
2711 {
2712 if (scancode == 0x100)
2713 return;
2714
2715 /* Act on key press; ignore key release */
2716 if (scancode & 0x80)
2717 return;
2718
2719 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2720 pr_info("Unknown key %x\n", scancode);
2721 }
2722
2723 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2724 {
2725 if (dev->info_supported) {
2726 int scancode = toshiba_acpi_query_hotkey(dev);
2727
2728 if (scancode < 0) {
2729 pr_err("Failed to query hotkey event\n");
2730 } else if (scancode != 0) {
2731 toshiba_acpi_report_hotkey(dev, scancode);
2732 dev->key_event_valid = 1;
2733 dev->last_key_event = scancode;
2734 }
2735 } else if (dev->system_event_supported) {
2736 u32 result;
2737 u32 value;
2738 int retries = 3;
2739
2740 do {
2741 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2742 switch (result) {
2743 case TOS_SUCCESS:
2744 toshiba_acpi_report_hotkey(dev, (int)value);
2745 dev->key_event_valid = 1;
2746 dev->last_key_event = value;
2747 break;
2748 case TOS_NOT_SUPPORTED:
2749 /*
2750 * This is a workaround for an unresolved
2751 * issue on some machines where system events
2752 * sporadically become disabled.
2753 */
2754 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2755 if (result == TOS_SUCCESS)
2756 pr_notice("Re-enabled hotkeys\n");
2757 /* Fall through */
2758 default:
2759 retries--;
2760 break;
2761 }
2762 } while (retries && result != TOS_FIFO_EMPTY);
2763 }
2764 }
2765
2766 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2767 {
2768 const struct key_entry *keymap = toshiba_acpi_keymap;
2769 acpi_handle ec_handle;
2770 int error;
2771
2772 if (disable_hotkeys) {
2773 pr_info("Hotkeys disabled by module parameter\n");
2774 return 0;
2775 }
2776
2777 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2778 pr_info("WMI event detected, hotkeys will not be monitored\n");
2779 return 0;
2780 }
2781
2782 error = toshiba_acpi_enable_hotkeys(dev);
2783 if (error)
2784 return error;
2785
2786 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2787 pr_notice("Unable to query Hotkey Event Type\n");
2788
2789 dev->hotkey_dev = input_allocate_device();
2790 if (!dev->hotkey_dev)
2791 return -ENOMEM;
2792
2793 dev->hotkey_dev->name = "Toshiba input device";
2794 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2795 dev->hotkey_dev->id.bustype = BUS_HOST;
2796
2797 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2798 !dev->kbd_function_keys_supported)
2799 keymap = toshiba_acpi_keymap;
2800 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2801 dev->kbd_function_keys_supported)
2802 keymap = toshiba_acpi_alt_keymap;
2803 else
2804 pr_info("Unknown event type received %x\n",
2805 dev->hotkey_event_type);
2806 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2807 if (error)
2808 goto err_free_dev;
2809
2810 /*
2811 * For some machines the SCI responsible for providing hotkey
2812 * notification doesn't fire. We can trigger the notification
2813 * whenever the Fn key is pressed using the NTFY method, if
2814 * supported, so if it's present set up an i8042 key filter
2815 * for this purpose.
2816 */
2817 ec_handle = ec_get_handle();
2818 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2819 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2820
2821 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2822 if (error) {
2823 pr_err("Error installing key filter\n");
2824 goto err_free_dev;
2825 }
2826
2827 dev->ntfy_supported = 1;
2828 }
2829
2830 /*
2831 * Determine hotkey query interface. Prefer using the INFO
2832 * method when it is available.
2833 */
2834 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2835 dev->info_supported = 1;
2836 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2837 dev->system_event_supported = 1;
2838
2839 if (!dev->info_supported && !dev->system_event_supported) {
2840 pr_warn("No hotkey query interface found\n");
2841 goto err_remove_filter;
2842 }
2843
2844 error = input_register_device(dev->hotkey_dev);
2845 if (error) {
2846 pr_info("Unable to register input device\n");
2847 goto err_remove_filter;
2848 }
2849
2850 return 0;
2851
2852 err_remove_filter:
2853 if (dev->ntfy_supported)
2854 i8042_remove_filter(toshiba_acpi_i8042_filter);
2855 err_free_dev:
2856 input_free_device(dev->hotkey_dev);
2857 dev->hotkey_dev = NULL;
2858 return error;
2859 }
2860
2861 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2862 {
2863 struct backlight_properties props;
2864 int brightness;
2865 int ret;
2866
2867 /*
2868 * Some machines don't support the backlight methods at all, and
2869 * others support it read-only. Either of these is pretty useless,
2870 * so only register the backlight device if the backlight method
2871 * supports both reads and writes.
2872 */
2873 brightness = __get_lcd_brightness(dev);
2874 if (brightness < 0)
2875 return 0;
2876 /*
2877 * If transflective backlight is supported and the brightness is zero
2878 * (lowest brightness level), the set_lcd_brightness function will
2879 * activate the transflective backlight, making the LCD appear to be
2880 * turned off, simply increment the brightness level to avoid that.
2881 */
2882 if (dev->tr_backlight_supported && brightness == 0)
2883 brightness++;
2884 ret = set_lcd_brightness(dev, brightness);
2885 if (ret) {
2886 pr_debug("Backlight method is read-only, disabling backlight support\n");
2887 return 0;
2888 }
2889
2890 /*
2891 * Tell acpi-video-detect code to prefer vendor backlight on all
2892 * systems with transflective backlight and on dmi matched systems.
2893 */
2894 if (dev->tr_backlight_supported ||
2895 dmi_check_system(toshiba_vendor_backlight_dmi))
2896 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2897
2898 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2899 return 0;
2900
2901 memset(&props, 0, sizeof(props));
2902 props.type = BACKLIGHT_PLATFORM;
2903 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2904
2905 /* Adding an extra level and having 0 change to transflective mode */
2906 if (dev->tr_backlight_supported)
2907 props.max_brightness++;
2908
2909 dev->backlight_dev = backlight_device_register("toshiba",
2910 &dev->acpi_dev->dev,
2911 dev,
2912 &toshiba_backlight_data,
2913 &props);
2914 if (IS_ERR(dev->backlight_dev)) {
2915 ret = PTR_ERR(dev->backlight_dev);
2916 pr_err("Could not register toshiba backlight device\n");
2917 dev->backlight_dev = NULL;
2918 return ret;
2919 }
2920
2921 dev->backlight_dev->props.brightness = brightness;
2922 return 0;
2923 }
2924
2925 static void print_supported_features(struct toshiba_acpi_dev *dev)
2926 {
2927 pr_info("Supported laptop features:");
2928
2929 if (dev->hotkey_dev)
2930 pr_cont(" hotkeys");
2931 if (dev->backlight_dev)
2932 pr_cont(" backlight");
2933 if (dev->video_supported)
2934 pr_cont(" video-out");
2935 if (dev->fan_supported)
2936 pr_cont(" fan");
2937 if (dev->tr_backlight_supported)
2938 pr_cont(" transflective-backlight");
2939 if (dev->illumination_supported)
2940 pr_cont(" illumination");
2941 if (dev->kbd_illum_supported)
2942 pr_cont(" keyboard-backlight");
2943 if (dev->touchpad_supported)
2944 pr_cont(" touchpad");
2945 if (dev->eco_supported)
2946 pr_cont(" eco-led");
2947 if (dev->accelerometer_supported)
2948 pr_cont(" accelerometer-axes");
2949 if (dev->usb_sleep_charge_supported)
2950 pr_cont(" usb-sleep-charge");
2951 if (dev->usb_rapid_charge_supported)
2952 pr_cont(" usb-rapid-charge");
2953 if (dev->usb_sleep_music_supported)
2954 pr_cont(" usb-sleep-music");
2955 if (dev->kbd_function_keys_supported)
2956 pr_cont(" special-function-keys");
2957 if (dev->panel_power_on_supported)
2958 pr_cont(" panel-power-on");
2959 if (dev->usb_three_supported)
2960 pr_cont(" usb3");
2961 if (dev->wwan_supported)
2962 pr_cont(" wwan");
2963 if (dev->cooling_method_supported)
2964 pr_cont(" cooling-method");
2965
2966 pr_cont("\n");
2967 }
2968
2969 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2970 {
2971 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2972
2973 misc_deregister(&dev->miscdev);
2974
2975 remove_toshiba_proc_entries(dev);
2976
2977 if (dev->accelerometer_supported && dev->indio_dev) {
2978 iio_device_unregister(dev->indio_dev);
2979 iio_device_free(dev->indio_dev);
2980 }
2981
2982 if (dev->sysfs_created)
2983 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
2984 &toshiba_attr_group);
2985
2986 if (dev->ntfy_supported) {
2987 i8042_remove_filter(toshiba_acpi_i8042_filter);
2988 cancel_work_sync(&dev->hotkey_work);
2989 }
2990
2991 if (dev->hotkey_dev)
2992 input_unregister_device(dev->hotkey_dev);
2993
2994 backlight_device_unregister(dev->backlight_dev);
2995
2996 if (dev->illumination_led_registered)
2997 led_classdev_unregister(&dev->led_dev);
2998
2999 if (dev->kbd_led_registered)
3000 led_classdev_unregister(&dev->kbd_led);
3001
3002 if (dev->eco_led_registered)
3003 led_classdev_unregister(&dev->eco_led);
3004
3005 if (dev->wwan_rfk) {
3006 rfkill_unregister(dev->wwan_rfk);
3007 rfkill_destroy(dev->wwan_rfk);
3008 }
3009
3010 if (toshiba_acpi)
3011 toshiba_acpi = NULL;
3012
3013 kfree(dev);
3014
3015 return 0;
3016 }
3017
3018 static const char *find_hci_method(acpi_handle handle)
3019 {
3020 if (acpi_has_method(handle, "GHCI"))
3021 return "GHCI";
3022
3023 if (acpi_has_method(handle, "SPFC"))
3024 return "SPFC";
3025
3026 return NULL;
3027 }
3028
3029 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3030 {
3031 struct toshiba_acpi_dev *dev;
3032 const char *hci_method;
3033 u32 dummy;
3034 int ret = 0;
3035
3036 if (toshiba_acpi)
3037 return -EBUSY;
3038
3039 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3040 TOSHIBA_ACPI_VERSION);
3041
3042 hci_method = find_hci_method(acpi_dev->handle);
3043 if (!hci_method) {
3044 pr_err("HCI interface not found\n");
3045 return -ENODEV;
3046 }
3047
3048 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3049 if (!dev)
3050 return -ENOMEM;
3051 dev->acpi_dev = acpi_dev;
3052 dev->method_hci = hci_method;
3053 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3054 dev->miscdev.name = "toshiba_acpi";
3055 dev->miscdev.fops = &toshiba_acpi_fops;
3056
3057 ret = misc_register(&dev->miscdev);
3058 if (ret) {
3059 pr_err("Failed to register miscdevice\n");
3060 kfree(dev);
3061 return ret;
3062 }
3063
3064 acpi_dev->driver_data = dev;
3065 dev_set_drvdata(&acpi_dev->dev, dev);
3066
3067 /* Query the BIOS for supported features */
3068
3069 /*
3070 * The "Special Functions" are always supported by the laptops
3071 * with the new keyboard layout, query for its presence to help
3072 * determine the keymap layout to use.
3073 */
3074 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3075 dev->kbd_function_keys_supported = !ret;
3076
3077 dev->hotkey_event_type = 0;
3078 if (toshiba_acpi_setup_keyboard(dev))
3079 pr_info("Unable to activate hotkeys\n");
3080
3081 /* Determine whether or not BIOS supports transflective backlight */
3082 ret = get_tr_backlight_status(dev, &dummy);
3083 dev->tr_backlight_supported = !ret;
3084
3085 ret = toshiba_acpi_setup_backlight(dev);
3086 if (ret)
3087 goto error;
3088
3089 toshiba_illumination_available(dev);
3090 if (dev->illumination_supported) {
3091 dev->led_dev.name = "toshiba::illumination";
3092 dev->led_dev.max_brightness = 1;
3093 dev->led_dev.brightness_set = toshiba_illumination_set;
3094 dev->led_dev.brightness_get = toshiba_illumination_get;
3095 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3096 dev->illumination_led_registered = true;
3097 }
3098
3099 toshiba_eco_mode_available(dev);
3100 if (dev->eco_supported) {
3101 dev->eco_led.name = "toshiba::eco_mode";
3102 dev->eco_led.max_brightness = 1;
3103 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3104 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3105 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3106 dev->eco_led_registered = true;
3107 }
3108
3109 toshiba_kbd_illum_available(dev);
3110 /*
3111 * Only register the LED if KBD illumination is supported
3112 * and the keyboard backlight operation mode is set to FN-Z
3113 * or we detect a second gen keyboard backlight
3114 */
3115 if (dev->kbd_illum_supported &&
3116 (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3117 dev->kbd_led.name = "toshiba::kbd_backlight";
3118 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3119 dev->kbd_led.max_brightness = 1;
3120 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3121 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3122 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3123 dev->kbd_led_registered = true;
3124 }
3125
3126 ret = toshiba_touchpad_get(dev, &dummy);
3127 dev->touchpad_supported = !ret;
3128
3129 toshiba_accelerometer_available(dev);
3130 if (dev->accelerometer_supported) {
3131 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3132 if (!dev->indio_dev) {
3133 pr_err("Unable to allocate iio device\n");
3134 goto iio_error;
3135 }
3136
3137 pr_info("Registering Toshiba accelerometer iio device\n");
3138
3139 dev->indio_dev->info = &toshiba_iio_accel_info;
3140 dev->indio_dev->name = "Toshiba accelerometer";
3141 dev->indio_dev->dev.parent = &acpi_dev->dev;
3142 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3143 dev->indio_dev->channels = toshiba_iio_accel_channels;
3144 dev->indio_dev->num_channels =
3145 ARRAY_SIZE(toshiba_iio_accel_channels);
3146
3147 ret = iio_device_register(dev->indio_dev);
3148 if (ret < 0) {
3149 pr_err("Unable to register iio device\n");
3150 iio_device_free(dev->indio_dev);
3151 }
3152 }
3153 iio_error:
3154
3155 toshiba_usb_sleep_charge_available(dev);
3156
3157 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3158 dev->usb_rapid_charge_supported = !ret;
3159
3160 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3161 dev->usb_sleep_music_supported = !ret;
3162
3163 ret = toshiba_panel_power_on_get(dev, &dummy);
3164 dev->panel_power_on_supported = !ret;
3165
3166 ret = toshiba_usb_three_get(dev, &dummy);
3167 dev->usb_three_supported = !ret;
3168
3169 ret = get_video_status(dev, &dummy);
3170 dev->video_supported = !ret;
3171
3172 ret = get_fan_status(dev, &dummy);
3173 dev->fan_supported = !ret;
3174
3175 toshiba_wwan_available(dev);
3176 if (dev->wwan_supported)
3177 toshiba_acpi_setup_wwan_rfkill(dev);
3178
3179 toshiba_cooling_method_available(dev);
3180
3181 print_supported_features(dev);
3182
3183 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3184 &toshiba_attr_group);
3185 if (ret) {
3186 dev->sysfs_created = 0;
3187 goto error;
3188 }
3189 dev->sysfs_created = !ret;
3190
3191 create_toshiba_proc_entries(dev);
3192
3193 toshiba_acpi = dev;
3194
3195 return 0;
3196
3197 error:
3198 toshiba_acpi_remove(acpi_dev);
3199 return ret;
3200 }
3201
3202 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3203 {
3204 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3205
3206 switch (event) {
3207 case 0x80: /* Hotkeys and some system events */
3208 /*
3209 * Machines with this WMI GUID aren't supported due to bugs in
3210 * their AML.
3211 *
3212 * Return silently to avoid triggering a netlink event.
3213 */
3214 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3215 return;
3216 toshiba_acpi_process_hotkeys(dev);
3217 break;
3218 case 0x81: /* Dock events */
3219 case 0x82:
3220 case 0x83:
3221 pr_info("Dock event received %x\n", event);
3222 break;
3223 case 0x88: /* Thermal events */
3224 pr_info("Thermal event received\n");
3225 break;
3226 case 0x8f: /* LID closed */
3227 case 0x90: /* LID is closed and Dock has been ejected */
3228 break;
3229 case 0x8c: /* SATA power events */
3230 case 0x8b:
3231 pr_info("SATA power event received %x\n", event);
3232 break;
3233 case 0x92: /* Keyboard backlight mode changed */
3234 dev->kbd_event_generated = true;
3235 /* Update sysfs entries */
3236 if (sysfs_update_group(&acpi_dev->dev.kobj,
3237 &toshiba_attr_group))
3238 pr_err("Unable to update sysfs entries\n");
3239 /* Notify LED subsystem about keyboard backlight change */
3240 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3241 led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3242 (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3243 LED_FULL : LED_OFF);
3244 break;
3245 case 0x85: /* Unknown */
3246 case 0x8d: /* Unknown */
3247 case 0x8e: /* Unknown */
3248 case 0x94: /* Unknown */
3249 case 0x95: /* Unknown */
3250 default:
3251 pr_info("Unknown event received %x\n", event);
3252 break;
3253 }
3254
3255 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3256 dev_name(&acpi_dev->dev),
3257 event, (event == 0x80) ?
3258 dev->last_key_event : 0);
3259 }
3260
3261 #ifdef CONFIG_PM_SLEEP
3262 static int toshiba_acpi_suspend(struct device *device)
3263 {
3264 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3265
3266 if (dev->hotkey_dev) {
3267 u32 result;
3268
3269 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3270 if (result != TOS_SUCCESS)
3271 pr_info("Unable to disable hotkeys\n");
3272 }
3273
3274 return 0;
3275 }
3276
3277 static int toshiba_acpi_resume(struct device *device)
3278 {
3279 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3280
3281 if (dev->hotkey_dev) {
3282 if (toshiba_acpi_enable_hotkeys(dev))
3283 pr_info("Unable to re-enable hotkeys\n");
3284 }
3285
3286 if (dev->wwan_rfk) {
3287 if (!toshiba_wireless_status(dev))
3288 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3289 }
3290
3291 return 0;
3292 }
3293 #endif
3294
3295 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3296 toshiba_acpi_suspend, toshiba_acpi_resume);
3297
3298 static struct acpi_driver toshiba_acpi_driver = {
3299 .name = "Toshiba ACPI driver",
3300 .owner = THIS_MODULE,
3301 .ids = toshiba_device_ids,
3302 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3303 .ops = {
3304 .add = toshiba_acpi_add,
3305 .remove = toshiba_acpi_remove,
3306 .notify = toshiba_acpi_notify,
3307 },
3308 .drv.pm = &toshiba_acpi_pm,
3309 };
3310
3311 static int __init toshiba_acpi_init(void)
3312 {
3313 int ret;
3314
3315 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3316 if (!toshiba_proc_dir) {
3317 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3318 return -ENODEV;
3319 }
3320
3321 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3322 if (ret) {
3323 pr_err("Failed to register ACPI driver: %d\n", ret);
3324 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3325 }
3326
3327 return ret;
3328 }
3329
3330 static void __exit toshiba_acpi_exit(void)
3331 {
3332 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3333 if (toshiba_proc_dir)
3334 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3335 }
3336
3337 module_init(toshiba_acpi_init);
3338 module_exit(toshiba_acpi_exit);
Linux with added FPC-III support