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drm/panfrost: Move gpu_{write, read}() macros to panfrost_regs.h
[linux/fpc-iii.git] / drivers / platform / x86 / toshiba_acpi.c
bloba1e6569427c348638019e258ab68a6911d23ea36
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 file_operations lcd_proc_fops = {
1436 .owner = THIS_MODULE,
1437 .open = lcd_proc_open,
1438 .read = seq_read,
1439 .llseek = seq_lseek,
1440 .release = single_release,
1441 .write = lcd_proc_write,
1442 };
1443
1444 /* Video-Out */
1445 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1446 {
1447 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1448
1449 if (result == TOS_FAILURE)
1450 pr_err("ACPI call to get Video-Out failed\n");
1451 else if (result == TOS_NOT_SUPPORTED)
1452 return -ENODEV;
1453
1454 return result == TOS_SUCCESS ? 0 : -EIO;
1455 }
1456
1457 static int video_proc_show(struct seq_file *m, void *v)
1458 {
1459 struct toshiba_acpi_dev *dev = m->private;
1460 int is_lcd, is_crt, is_tv;
1461 u32 value;
1462
1463 if (get_video_status(dev, &value))
1464 return -EIO;
1465
1466 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1467 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1468 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1469
1470 seq_printf(m, "lcd_out: %d\n", is_lcd);
1471 seq_printf(m, "crt_out: %d\n", is_crt);
1472 seq_printf(m, "tv_out: %d\n", is_tv);
1473
1474 return 0;
1475 }
1476
1477 static int video_proc_open(struct inode *inode, struct file *file)
1478 {
1479 return single_open(file, video_proc_show, PDE_DATA(inode));
1480 }
1481
1482 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1483 size_t count, loff_t *pos)
1484 {
1485 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1486 char *buffer;
1487 char *cmd;
1488 int lcd_out, crt_out, tv_out;
1489 int remain = count;
1490 int value;
1491 int ret;
1492 u32 video_out;
1493
1494 cmd = memdup_user_nul(buf, count);
1495 if (IS_ERR(cmd))
1496 return PTR_ERR(cmd);
1497
1498 buffer = cmd;
1499
1500 /*
1501 * Scan expression. Multiple expressions may be delimited with ;
1502 * NOTE: To keep scanning simple, invalid fields are ignored.
1503 */
1504 while (remain) {
1505 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1506 lcd_out = value & 1;
1507 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1508 crt_out = value & 1;
1509 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1510 tv_out = value & 1;
1511 /* Advance to one character past the next ; */
1512 do {
1513 ++buffer;
1514 --remain;
1515 } while (remain && *(buffer - 1) != ';');
1516 }
1517
1518 kfree(cmd);
1519
1520 lcd_out = crt_out = tv_out = -1;
1521 ret = get_video_status(dev, &video_out);
1522 if (!ret) {
1523 unsigned int new_video_out = video_out;
1524
1525 if (lcd_out != -1)
1526 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1527 if (crt_out != -1)
1528 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1529 if (tv_out != -1)
1530 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1531 /*
1532 * To avoid unnecessary video disruption, only write the new
1533 * video setting if something changed.
1534 */
1535 if (new_video_out != video_out)
1536 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1537 }
1538
1539 return ret ? -EIO : count;
1540 }
1541
1542 static const struct file_operations video_proc_fops = {
1543 .owner = THIS_MODULE,
1544 .open = video_proc_open,
1545 .read = seq_read,
1546 .llseek = seq_lseek,
1547 .release = single_release,
1548 .write = video_proc_write,
1549 };
1550
1551 /* Fan status */
1552 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1553 {
1554 u32 result = hci_read(dev, HCI_FAN, status);
1555
1556 if (result == TOS_FAILURE)
1557 pr_err("ACPI call to get Fan status failed\n");
1558 else if (result == TOS_NOT_SUPPORTED)
1559 return -ENODEV;
1560
1561 return result == TOS_SUCCESS ? 0 : -EIO;
1562 }
1563
1564 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1565 {
1566 u32 result = hci_write(dev, HCI_FAN, status);
1567
1568 if (result == TOS_FAILURE)
1569 pr_err("ACPI call to set Fan status failed\n");
1570 else if (result == TOS_NOT_SUPPORTED)
1571 return -ENODEV;
1572
1573 return result == TOS_SUCCESS ? 0 : -EIO;
1574 }
1575
1576 static int fan_proc_show(struct seq_file *m, void *v)
1577 {
1578 struct toshiba_acpi_dev *dev = m->private;
1579 u32 value;
1580
1581 if (get_fan_status(dev, &value))
1582 return -EIO;
1583
1584 seq_printf(m, "running: %d\n", (value > 0));
1585 seq_printf(m, "force_on: %d\n", dev->force_fan);
1586
1587 return 0;
1588 }
1589
1590 static int fan_proc_open(struct inode *inode, struct file *file)
1591 {
1592 return single_open(file, fan_proc_show, PDE_DATA(inode));
1593 }
1594
1595 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1596 size_t count, loff_t *pos)
1597 {
1598 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1599 char cmd[42];
1600 size_t len;
1601 int value;
1602
1603 len = min(count, sizeof(cmd) - 1);
1604 if (copy_from_user(cmd, buf, len))
1605 return -EFAULT;
1606 cmd[len] = '\0';
1607
1608 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1609 value != 0 && value != 1)
1610 return -EINVAL;
1611
1612 if (set_fan_status(dev, value))
1613 return -EIO;
1614
1615 dev->force_fan = value;
1616
1617 return count;
1618 }
1619
1620 static const struct file_operations fan_proc_fops = {
1621 .owner = THIS_MODULE,
1622 .open = fan_proc_open,
1623 .read = seq_read,
1624 .llseek = seq_lseek,
1625 .release = single_release,
1626 .write = fan_proc_write,
1627 };
1628
1629 static int keys_proc_show(struct seq_file *m, void *v)
1630 {
1631 struct toshiba_acpi_dev *dev = m->private;
1632
1633 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1634 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1635
1636 return 0;
1637 }
1638
1639 static int keys_proc_open(struct inode *inode, struct file *file)
1640 {
1641 return single_open(file, keys_proc_show, PDE_DATA(inode));
1642 }
1643
1644 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1645 size_t count, loff_t *pos)
1646 {
1647 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1648 char cmd[42];
1649 size_t len;
1650 int value;
1651
1652 len = min(count, sizeof(cmd) - 1);
1653 if (copy_from_user(cmd, buf, len))
1654 return -EFAULT;
1655 cmd[len] = '\0';
1656
1657 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1658 dev->key_event_valid = 0;
1659 else
1660 return -EINVAL;
1661
1662 return count;
1663 }
1664
1665 static const struct file_operations keys_proc_fops = {
1666 .owner = THIS_MODULE,
1667 .open = keys_proc_open,
1668 .read = seq_read,
1669 .llseek = seq_lseek,
1670 .release = single_release,
1671 .write = keys_proc_write,
1672 };
1673
1674 static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1675 {
1676 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1677 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1678 return 0;
1679 }
1680
1681 /*
1682 * Proc and module init
1683 */
1684
1685 #define PROC_TOSHIBA "toshiba"
1686
1687 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1688 {
1689 if (dev->backlight_dev)
1690 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1691 &lcd_proc_fops, dev);
1692 if (dev->video_supported)
1693 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1694 &video_proc_fops, dev);
1695 if (dev->fan_supported)
1696 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1697 &fan_proc_fops, dev);
1698 if (dev->hotkey_dev)
1699 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1700 &keys_proc_fops, dev);
1701 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1702 version_proc_show, dev);
1703 }
1704
1705 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1706 {
1707 if (dev->backlight_dev)
1708 remove_proc_entry("lcd", toshiba_proc_dir);
1709 if (dev->video_supported)
1710 remove_proc_entry("video", toshiba_proc_dir);
1711 if (dev->fan_supported)
1712 remove_proc_entry("fan", toshiba_proc_dir);
1713 if (dev->hotkey_dev)
1714 remove_proc_entry("keys", toshiba_proc_dir);
1715 remove_proc_entry("version", toshiba_proc_dir);
1716 }
1717
1718 static const struct backlight_ops toshiba_backlight_data = {
1719 .options = BL_CORE_SUSPENDRESUME,
1720 .get_brightness = get_lcd_brightness,
1721 .update_status = set_lcd_status,
1722 };
1723
1724 /* Keyboard backlight work */
1725 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1726
1727 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1728
1729 /*
1730 * Sysfs files
1731 */
1732 static ssize_t version_show(struct device *dev,
1733 struct device_attribute *attr, char *buf)
1734 {
1735 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1736 }
1737 static DEVICE_ATTR_RO(version);
1738
1739 static ssize_t fan_store(struct device *dev,
1740 struct device_attribute *attr,
1741 const char *buf, size_t count)
1742 {
1743 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1744 int state;
1745 int ret;
1746
1747 ret = kstrtoint(buf, 0, &state);
1748 if (ret)
1749 return ret;
1750
1751 if (state != 0 && state != 1)
1752 return -EINVAL;
1753
1754 ret = set_fan_status(toshiba, state);
1755 if (ret)
1756 return ret;
1757
1758 return count;
1759 }
1760
1761 static ssize_t fan_show(struct device *dev,
1762 struct device_attribute *attr, char *buf)
1763 {
1764 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1765 u32 value;
1766 int ret;
1767
1768 ret = get_fan_status(toshiba, &value);
1769 if (ret)
1770 return ret;
1771
1772 return sprintf(buf, "%d\n", value);
1773 }
1774 static DEVICE_ATTR_RW(fan);
1775
1776 static ssize_t kbd_backlight_mode_store(struct device *dev,
1777 struct device_attribute *attr,
1778 const char *buf, size_t count)
1779 {
1780 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1781 int mode;
1782 int ret;
1783
1784
1785 ret = kstrtoint(buf, 0, &mode);
1786 if (ret)
1787 return ret;
1788
1789 /* Check for supported modes depending on keyboard backlight type */
1790 if (toshiba->kbd_type == 1) {
1791 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1792 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1793 return -EINVAL;
1794 } else if (toshiba->kbd_type == 2) {
1795 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1796 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1797 mode != SCI_KBD_MODE_OFF)
1798 return -EINVAL;
1799 }
1800
1801 /*
1802 * Set the Keyboard Backlight Mode where:
1803 * Auto - KBD backlight turns off automatically in given time
1804 * FN-Z - KBD backlight "toggles" when hotkey pressed
1805 * ON - KBD backlight is always on
1806 * OFF - KBD backlight is always off
1807 */
1808
1809 /* Only make a change if the actual mode has changed */
1810 if (toshiba->kbd_mode != mode) {
1811 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1812 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1813
1814 /* OR the "base time" to the actual method format */
1815 if (toshiba->kbd_type == 1) {
1816 /* Type 1 requires the current mode */
1817 time |= toshiba->kbd_mode;
1818 } else if (toshiba->kbd_type == 2) {
1819 /* Type 2 requires the desired mode */
1820 time |= mode;
1821 }
1822
1823 ret = toshiba_kbd_illum_status_set(toshiba, time);
1824 if (ret)
1825 return ret;
1826
1827 toshiba->kbd_mode = mode;
1828 toshiba_acpi->kbd_mode = mode;
1829
1830 /*
1831 * Some laptop models with the second generation backlit
1832 * keyboard (type 2) do not generate the keyboard backlight
1833 * changed event (0x92), and thus, the driver will never update
1834 * the sysfs entries.
1835 *
1836 * The event is generated right when changing the keyboard
1837 * backlight mode and the *notify function will set the
1838 * kbd_event_generated to true.
1839 *
1840 * In case the event is not generated, schedule the keyboard
1841 * backlight work to update the sysfs entries and emulate the
1842 * event via genetlink.
1843 */
1844 if (toshiba->kbd_type == 2 &&
1845 !toshiba->kbd_event_generated)
1846 schedule_work(&kbd_bl_work);
1847 }
1848
1849 return count;
1850 }
1851
1852 static ssize_t kbd_backlight_mode_show(struct device *dev,
1853 struct device_attribute *attr,
1854 char *buf)
1855 {
1856 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1857 u32 time;
1858
1859 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1860 return -EIO;
1861
1862 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1863 }
1864 static DEVICE_ATTR_RW(kbd_backlight_mode);
1865
1866 static ssize_t kbd_type_show(struct device *dev,
1867 struct device_attribute *attr, char *buf)
1868 {
1869 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1870
1871 return sprintf(buf, "%d\n", toshiba->kbd_type);
1872 }
1873 static DEVICE_ATTR_RO(kbd_type);
1874
1875 static ssize_t available_kbd_modes_show(struct device *dev,
1876 struct device_attribute *attr,
1877 char *buf)
1878 {
1879 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1880
1881 if (toshiba->kbd_type == 1)
1882 return sprintf(buf, "0x%x 0x%x\n",
1883 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1884
1885 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1886 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1887 }
1888 static DEVICE_ATTR_RO(available_kbd_modes);
1889
1890 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1891 struct device_attribute *attr,
1892 const char *buf, size_t count)
1893 {
1894 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1895 int time;
1896 int ret;
1897
1898 ret = kstrtoint(buf, 0, &time);
1899 if (ret)
1900 return ret;
1901
1902 /* Check for supported values depending on kbd_type */
1903 if (toshiba->kbd_type == 1) {
1904 if (time < 0 || time > 60)
1905 return -EINVAL;
1906 } else if (toshiba->kbd_type == 2) {
1907 if (time < 1 || time > 60)
1908 return -EINVAL;
1909 }
1910
1911 /* Set the Keyboard Backlight Timeout */
1912
1913 /* Only make a change if the actual timeout has changed */
1914 if (toshiba->kbd_time != time) {
1915 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1916 time = time << HCI_MISC_SHIFT;
1917 /* OR the "base time" to the actual method format */
1918 if (toshiba->kbd_type == 1)
1919 time |= SCI_KBD_MODE_FNZ;
1920 else if (toshiba->kbd_type == 2)
1921 time |= SCI_KBD_MODE_AUTO;
1922
1923 ret = toshiba_kbd_illum_status_set(toshiba, time);
1924 if (ret)
1925 return ret;
1926
1927 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1928 }
1929
1930 return count;
1931 }
1932
1933 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1934 struct device_attribute *attr,
1935 char *buf)
1936 {
1937 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1938 u32 time;
1939
1940 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1941 return -EIO;
1942
1943 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1944 }
1945 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1946
1947 static ssize_t touchpad_store(struct device *dev,
1948 struct device_attribute *attr,
1949 const char *buf, size_t count)
1950 {
1951 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1952 int state;
1953 int ret;
1954
1955 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1956 ret = kstrtoint(buf, 0, &state);
1957 if (ret)
1958 return ret;
1959 if (state != 0 && state != 1)
1960 return -EINVAL;
1961
1962 ret = toshiba_touchpad_set(toshiba, state);
1963 if (ret)
1964 return ret;
1965
1966 return count;
1967 }
1968
1969 static ssize_t touchpad_show(struct device *dev,
1970 struct device_attribute *attr, char *buf)
1971 {
1972 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1973 u32 state;
1974 int ret;
1975
1976 ret = toshiba_touchpad_get(toshiba, &state);
1977 if (ret < 0)
1978 return ret;
1979
1980 return sprintf(buf, "%i\n", state);
1981 }
1982 static DEVICE_ATTR_RW(touchpad);
1983
1984 static ssize_t usb_sleep_charge_show(struct device *dev,
1985 struct device_attribute *attr, char *buf)
1986 {
1987 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1988 u32 mode;
1989 int ret;
1990
1991 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
1992 if (ret < 0)
1993 return ret;
1994
1995 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
1996 }
1997
1998 static ssize_t usb_sleep_charge_store(struct device *dev,
1999 struct device_attribute *attr,
2000 const char *buf, size_t count)
2001 {
2002 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2003 int state;
2004 u32 mode;
2005 int ret;
2006
2007 ret = kstrtoint(buf, 0, &state);
2008 if (ret)
2009 return ret;
2010 /*
2011 * Check for supported values, where:
2012 * 0 - Disabled
2013 * 1 - Alternate (Non USB conformant devices that require more power)
2014 * 2 - Auto (USB conformant devices)
2015 * 3 - Typical
2016 */
2017 if (state != 0 && state != 1 && state != 2 && state != 3)
2018 return -EINVAL;
2019
2020 /* Set the USB charging mode to internal value */
2021 mode = toshiba->usbsc_mode_base;
2022 if (state == 0)
2023 mode |= SCI_USB_CHARGE_DISABLED;
2024 else if (state == 1)
2025 mode |= SCI_USB_CHARGE_ALTERNATE;
2026 else if (state == 2)
2027 mode |= SCI_USB_CHARGE_AUTO;
2028 else if (state == 3)
2029 mode |= SCI_USB_CHARGE_TYPICAL;
2030
2031 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2032 if (ret)
2033 return ret;
2034
2035 return count;
2036 }
2037 static DEVICE_ATTR_RW(usb_sleep_charge);
2038
2039 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2040 struct device_attribute *attr,
2041 char *buf)
2042 {
2043 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2044 int bat_lvl, status;
2045 u32 state;
2046 int ret;
2047 int tmp;
2048
2049 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2050 if (ret < 0)
2051 return ret;
2052
2053 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2054 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2055 status = (tmp == 0x4) ? 1 : 0;
2056 /* Determine the battery level set */
2057 bat_lvl = state >> HCI_MISC_SHIFT;
2058
2059 return sprintf(buf, "%d %d\n", status, bat_lvl);
2060 }
2061
2062 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2063 struct device_attribute *attr,
2064 const char *buf, size_t count)
2065 {
2066 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2067 u32 status;
2068 int value;
2069 int ret;
2070 int tmp;
2071
2072 ret = kstrtoint(buf, 0, &value);
2073 if (ret)
2074 return ret;
2075
2076 /*
2077 * Set the status of the function:
2078 * 0 - Disabled
2079 * 1-100 - Enabled
2080 */
2081 if (value < 0 || value > 100)
2082 return -EINVAL;
2083
2084 if (value == 0) {
2085 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2086 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2087 } else {
2088 tmp = value << HCI_MISC_SHIFT;
2089 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2090 }
2091 ret = toshiba_sleep_functions_status_set(toshiba, status);
2092 if (ret < 0)
2093 return ret;
2094
2095 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2096
2097 return count;
2098 }
2099 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2100
2101 static ssize_t usb_rapid_charge_show(struct device *dev,
2102 struct device_attribute *attr, char *buf)
2103 {
2104 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2105 u32 state;
2106 int ret;
2107
2108 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2109 if (ret < 0)
2110 return ret;
2111
2112 return sprintf(buf, "%d\n", state);
2113 }
2114
2115 static ssize_t usb_rapid_charge_store(struct device *dev,
2116 struct device_attribute *attr,
2117 const char *buf, size_t count)
2118 {
2119 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2120 int state;
2121 int ret;
2122
2123 ret = kstrtoint(buf, 0, &state);
2124 if (ret)
2125 return ret;
2126 if (state != 0 && state != 1)
2127 return -EINVAL;
2128
2129 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2130 if (ret)
2131 return ret;
2132
2133 return count;
2134 }
2135 static DEVICE_ATTR_RW(usb_rapid_charge);
2136
2137 static ssize_t usb_sleep_music_show(struct device *dev,
2138 struct device_attribute *attr, char *buf)
2139 {
2140 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2141 u32 state;
2142 int ret;
2143
2144 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2145 if (ret < 0)
2146 return ret;
2147
2148 return sprintf(buf, "%d\n", state);
2149 }
2150
2151 static ssize_t usb_sleep_music_store(struct device *dev,
2152 struct device_attribute *attr,
2153 const char *buf, size_t count)
2154 {
2155 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2156 int state;
2157 int ret;
2158
2159 ret = kstrtoint(buf, 0, &state);
2160 if (ret)
2161 return ret;
2162 if (state != 0 && state != 1)
2163 return -EINVAL;
2164
2165 ret = toshiba_usb_sleep_music_set(toshiba, state);
2166 if (ret)
2167 return ret;
2168
2169 return count;
2170 }
2171 static DEVICE_ATTR_RW(usb_sleep_music);
2172
2173 static ssize_t kbd_function_keys_show(struct device *dev,
2174 struct device_attribute *attr, char *buf)
2175 {
2176 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2177 int mode;
2178 int ret;
2179
2180 ret = toshiba_function_keys_get(toshiba, &mode);
2181 if (ret < 0)
2182 return ret;
2183
2184 return sprintf(buf, "%d\n", mode);
2185 }
2186
2187 static ssize_t kbd_function_keys_store(struct device *dev,
2188 struct device_attribute *attr,
2189 const char *buf, size_t count)
2190 {
2191 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2192 int mode;
2193 int ret;
2194
2195 ret = kstrtoint(buf, 0, &mode);
2196 if (ret)
2197 return ret;
2198 /*
2199 * Check for the function keys mode where:
2200 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2201 * 1 - Special functions (Opposite of the above setting)
2202 */
2203 if (mode != 0 && mode != 1)
2204 return -EINVAL;
2205
2206 ret = toshiba_function_keys_set(toshiba, mode);
2207 if (ret)
2208 return ret;
2209
2210 pr_info("Reboot for changes to KBD Function Keys to take effect");
2211
2212 return count;
2213 }
2214 static DEVICE_ATTR_RW(kbd_function_keys);
2215
2216 static ssize_t panel_power_on_show(struct device *dev,
2217 struct device_attribute *attr, char *buf)
2218 {
2219 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2220 u32 state;
2221 int ret;
2222
2223 ret = toshiba_panel_power_on_get(toshiba, &state);
2224 if (ret < 0)
2225 return ret;
2226
2227 return sprintf(buf, "%d\n", state);
2228 }
2229
2230 static ssize_t panel_power_on_store(struct device *dev,
2231 struct device_attribute *attr,
2232 const char *buf, size_t count)
2233 {
2234 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2235 int state;
2236 int ret;
2237
2238 ret = kstrtoint(buf, 0, &state);
2239 if (ret)
2240 return ret;
2241 if (state != 0 && state != 1)
2242 return -EINVAL;
2243
2244 ret = toshiba_panel_power_on_set(toshiba, state);
2245 if (ret)
2246 return ret;
2247
2248 pr_info("Reboot for changes to Panel Power ON to take effect");
2249
2250 return count;
2251 }
2252 static DEVICE_ATTR_RW(panel_power_on);
2253
2254 static ssize_t usb_three_show(struct device *dev,
2255 struct device_attribute *attr, char *buf)
2256 {
2257 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2258 u32 state;
2259 int ret;
2260
2261 ret = toshiba_usb_three_get(toshiba, &state);
2262 if (ret < 0)
2263 return ret;
2264
2265 return sprintf(buf, "%d\n", state);
2266 }
2267
2268 static ssize_t usb_three_store(struct device *dev,
2269 struct device_attribute *attr,
2270 const char *buf, size_t count)
2271 {
2272 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2273 int state;
2274 int ret;
2275
2276 ret = kstrtoint(buf, 0, &state);
2277 if (ret)
2278 return ret;
2279 /*
2280 * Check for USB 3 mode where:
2281 * 0 - Disabled (Acts like a USB 2 port, saving power)
2282 * 1 - Enabled
2283 */
2284 if (state != 0 && state != 1)
2285 return -EINVAL;
2286
2287 ret = toshiba_usb_three_set(toshiba, state);
2288 if (ret)
2289 return ret;
2290
2291 pr_info("Reboot for changes to USB 3 to take effect");
2292
2293 return count;
2294 }
2295 static DEVICE_ATTR_RW(usb_three);
2296
2297 static ssize_t cooling_method_show(struct device *dev,
2298 struct device_attribute *attr, char *buf)
2299 {
2300 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2301 int state;
2302 int ret;
2303
2304 ret = toshiba_cooling_method_get(toshiba, &state);
2305 if (ret < 0)
2306 return ret;
2307
2308 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2309 }
2310
2311 static ssize_t cooling_method_store(struct device *dev,
2312 struct device_attribute *attr,
2313 const char *buf, size_t count)
2314 {
2315 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2316 int state;
2317 int ret;
2318
2319 ret = kstrtoint(buf, 0, &state);
2320 if (ret)
2321 return ret;
2322
2323 /*
2324 * Check for supported values
2325 * Depending on the laptop model, some only support these two:
2326 * 0 - Maximum Performance
2327 * 1 - Battery Optimized
2328 *
2329 * While some others support all three methods:
2330 * 0 - Maximum Performance
2331 * 1 - Performance
2332 * 2 - Battery Optimized
2333 */
2334 if (state < 0 || state > toshiba->max_cooling_method)
2335 return -EINVAL;
2336
2337 ret = toshiba_cooling_method_set(toshiba, state);
2338 if (ret)
2339 return ret;
2340
2341 return count;
2342 }
2343 static DEVICE_ATTR_RW(cooling_method);
2344
2345 static struct attribute *toshiba_attributes[] = {
2346 &dev_attr_version.attr,
2347 &dev_attr_fan.attr,
2348 &dev_attr_kbd_backlight_mode.attr,
2349 &dev_attr_kbd_type.attr,
2350 &dev_attr_available_kbd_modes.attr,
2351 &dev_attr_kbd_backlight_timeout.attr,
2352 &dev_attr_touchpad.attr,
2353 &dev_attr_usb_sleep_charge.attr,
2354 &dev_attr_sleep_functions_on_battery.attr,
2355 &dev_attr_usb_rapid_charge.attr,
2356 &dev_attr_usb_sleep_music.attr,
2357 &dev_attr_kbd_function_keys.attr,
2358 &dev_attr_panel_power_on.attr,
2359 &dev_attr_usb_three.attr,
2360 &dev_attr_cooling_method.attr,
2361 NULL,
2362 };
2363
2364 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2365 struct attribute *attr, int idx)
2366 {
2367 struct device *dev = container_of(kobj, struct device, kobj);
2368 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2369 bool exists = true;
2370
2371 if (attr == &dev_attr_fan.attr)
2372 exists = (drv->fan_supported) ? true : false;
2373 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2374 exists = (drv->kbd_illum_supported) ? true : false;
2375 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2376 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2377 else if (attr == &dev_attr_touchpad.attr)
2378 exists = (drv->touchpad_supported) ? true : false;
2379 else if (attr == &dev_attr_usb_sleep_charge.attr)
2380 exists = (drv->usb_sleep_charge_supported) ? true : false;
2381 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2382 exists = (drv->usb_sleep_charge_supported) ? true : false;
2383 else if (attr == &dev_attr_usb_rapid_charge.attr)
2384 exists = (drv->usb_rapid_charge_supported) ? true : false;
2385 else if (attr == &dev_attr_usb_sleep_music.attr)
2386 exists = (drv->usb_sleep_music_supported) ? true : false;
2387 else if (attr == &dev_attr_kbd_function_keys.attr)
2388 exists = (drv->kbd_function_keys_supported) ? true : false;
2389 else if (attr == &dev_attr_panel_power_on.attr)
2390 exists = (drv->panel_power_on_supported) ? true : false;
2391 else if (attr == &dev_attr_usb_three.attr)
2392 exists = (drv->usb_three_supported) ? true : false;
2393 else if (attr == &dev_attr_cooling_method.attr)
2394 exists = (drv->cooling_method_supported) ? true : false;
2395
2396 return exists ? attr->mode : 0;
2397 }
2398
2399 static const struct attribute_group toshiba_attr_group = {
2400 .is_visible = toshiba_sysfs_is_visible,
2401 .attrs = toshiba_attributes,
2402 };
2403
2404 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2405 {
2406 /* Update the sysfs entries */
2407 if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2408 &toshiba_attr_group))
2409 pr_err("Unable to update sysfs entries\n");
2410
2411 /* Notify LED subsystem about keyboard backlight change */
2412 if (toshiba_acpi->kbd_type == 2 &&
2413 toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2414 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2415 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2416 LED_FULL : LED_OFF);
2417
2418 /* Emulate the keyboard backlight event */
2419 acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2420 dev_name(&toshiba_acpi->acpi_dev->dev),
2421 0x92, 0);
2422 }
2423
2424 /*
2425 * IIO device
2426 */
2427
2428 enum toshiba_iio_accel_chan {
2429 AXIS_X,
2430 AXIS_Y,
2431 AXIS_Z
2432 };
2433
2434 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2435 {
2436 u32 xyval, zval;
2437 int ret;
2438
2439 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2440 if (ret < 0)
2441 return ret;
2442
2443 switch (chan) {
2444 case AXIS_X:
2445 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2446 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2447 case AXIS_Y:
2448 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2449 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2450 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2451 case AXIS_Z:
2452 return zval & HCI_ACCEL_DIRECTION_MASK ?
2453 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2454 }
2455
2456 return ret;
2457 }
2458
2459 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2460 struct iio_chan_spec const *chan,
2461 int *val, int *val2, long mask)
2462 {
2463 int ret;
2464
2465 switch (mask) {
2466 case IIO_CHAN_INFO_RAW:
2467 ret = toshiba_iio_accel_get_axis(chan->channel);
2468 if (ret == -EIO || ret == -ENODEV)
2469 return ret;
2470
2471 *val = ret;
2472
2473 return IIO_VAL_INT;
2474 }
2475
2476 return -EINVAL;
2477 }
2478
2479 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2480 .type = IIO_ACCEL, \
2481 .modified = 1, \
2482 .channel = chan, \
2483 .channel2 = IIO_MOD_##axis, \
2484 .output = 1, \
2485 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2486 }
2487
2488 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2489 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2490 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2491 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2492 };
2493
2494 static const struct iio_info toshiba_iio_accel_info = {
2495 .read_raw = &toshiba_iio_accel_read_raw,
2496 };
2497
2498 /*
2499 * Misc device
2500 */
2501 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2502 {
2503 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2504 regs->edx, regs->esi, regs->edi };
2505 u32 out[TCI_WORDS];
2506 acpi_status status;
2507
2508 status = tci_raw(toshiba_acpi, in, out);
2509 if (ACPI_FAILURE(status)) {
2510 pr_err("ACPI call to query SMM registers failed\n");
2511 return -EIO;
2512 }
2513
2514 /* Fillout the SMM struct with the TCI call results */
2515 regs->eax = out[0];
2516 regs->ebx = out[1];
2517 regs->ecx = out[2];
2518 regs->edx = out[3];
2519 regs->esi = out[4];
2520 regs->edi = out[5];
2521
2522 return 0;
2523 }
2524
2525 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2526 unsigned long arg)
2527 {
2528 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2529 SMMRegisters regs;
2530 int ret;
2531
2532 if (!argp)
2533 return -EINVAL;
2534
2535 switch (cmd) {
2536 case TOSH_SMM:
2537 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2538 return -EFAULT;
2539 ret = toshiba_acpi_smm_bridge(&regs);
2540 if (ret)
2541 return ret;
2542 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2543 return -EFAULT;
2544 break;
2545 case TOSHIBA_ACPI_SCI:
2546 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2547 return -EFAULT;
2548 /* Ensure we are being called with a SCI_{GET, SET} register */
2549 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2550 return -EINVAL;
2551 if (!sci_open(toshiba_acpi))
2552 return -EIO;
2553 ret = toshiba_acpi_smm_bridge(&regs);
2554 sci_close(toshiba_acpi);
2555 if (ret)
2556 return ret;
2557 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2558 return -EFAULT;
2559 break;
2560 default:
2561 return -EINVAL;
2562 }
2563
2564 return 0;
2565 }
2566
2567 static const struct file_operations toshiba_acpi_fops = {
2568 .owner = THIS_MODULE,
2569 .unlocked_ioctl = toshiba_acpi_ioctl,
2570 .llseek = noop_llseek,
2571 };
2572
2573 /*
2574 * WWAN RFKill handlers
2575 */
2576 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2577 {
2578 struct toshiba_acpi_dev *dev = data;
2579 int ret;
2580
2581 ret = toshiba_wireless_status(dev);
2582 if (ret)
2583 return ret;
2584
2585 if (!dev->killswitch)
2586 return 0;
2587
2588 return toshiba_wwan_set(dev, !blocked);
2589 }
2590
2591 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2592 {
2593 struct toshiba_acpi_dev *dev = data;
2594
2595 if (toshiba_wireless_status(dev))
2596 return;
2597
2598 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2599 }
2600
2601 static const struct rfkill_ops wwan_rfk_ops = {
2602 .set_block = toshiba_acpi_wwan_set_block,
2603 .poll = toshiba_acpi_wwan_poll,
2604 };
2605
2606 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2607 {
2608 int ret = toshiba_wireless_status(dev);
2609
2610 if (ret)
2611 return ret;
2612
2613 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2614 &dev->acpi_dev->dev,
2615 RFKILL_TYPE_WWAN,
2616 &wwan_rfk_ops,
2617 dev);
2618 if (!dev->wwan_rfk) {
2619 pr_err("Unable to allocate WWAN rfkill device\n");
2620 return -ENOMEM;
2621 }
2622
2623 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2624
2625 ret = rfkill_register(dev->wwan_rfk);
2626 if (ret) {
2627 pr_err("Unable to register WWAN rfkill device\n");
2628 rfkill_destroy(dev->wwan_rfk);
2629 }
2630
2631 return ret;
2632 }
2633
2634 /*
2635 * Hotkeys
2636 */
2637 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2638 {
2639 acpi_status status;
2640 u32 result;
2641
2642 status = acpi_evaluate_object(dev->acpi_dev->handle,
2643 "ENAB", NULL, NULL);
2644 if (ACPI_FAILURE(status))
2645 return -ENODEV;
2646
2647 /*
2648 * Enable the "Special Functions" mode only if they are
2649 * supported and if they are activated.
2650 */
2651 if (dev->kbd_function_keys_supported && dev->special_functions)
2652 result = hci_write(dev, HCI_HOTKEY_EVENT,
2653 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2654 else
2655 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2656
2657 if (result == TOS_FAILURE)
2658 return -EIO;
2659 else if (result == TOS_NOT_SUPPORTED)
2660 return -ENODEV;
2661
2662 return 0;
2663 }
2664
2665 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2666 struct serio *port)
2667 {
2668 if (str & I8042_STR_AUXDATA)
2669 return false;
2670
2671 if (unlikely(data == 0xe0))
2672 return false;
2673
2674 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2675 schedule_work(&toshiba_acpi->hotkey_work);
2676 return true;
2677 }
2678
2679 return false;
2680 }
2681
2682 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2683 {
2684 acpi_handle ec_handle = ec_get_handle();
2685 acpi_status status;
2686
2687 if (!ec_handle)
2688 return;
2689
2690 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2691 if (ACPI_FAILURE(status))
2692 pr_err("ACPI NTFY method execution failed\n");
2693 }
2694
2695 /*
2696 * Returns hotkey scancode, or < 0 on failure.
2697 */
2698 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2699 {
2700 unsigned long long value;
2701 acpi_status status;
2702
2703 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2704 NULL, &value);
2705 if (ACPI_FAILURE(status)) {
2706 pr_err("ACPI INFO method execution failed\n");
2707 return -EIO;
2708 }
2709
2710 return value;
2711 }
2712
2713 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2714 int scancode)
2715 {
2716 if (scancode == 0x100)
2717 return;
2718
2719 /* Act on key press; ignore key release */
2720 if (scancode & 0x80)
2721 return;
2722
2723 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2724 pr_info("Unknown key %x\n", scancode);
2725 }
2726
2727 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2728 {
2729 if (dev->info_supported) {
2730 int scancode = toshiba_acpi_query_hotkey(dev);
2731
2732 if (scancode < 0) {
2733 pr_err("Failed to query hotkey event\n");
2734 } else if (scancode != 0) {
2735 toshiba_acpi_report_hotkey(dev, scancode);
2736 dev->key_event_valid = 1;
2737 dev->last_key_event = scancode;
2738 }
2739 } else if (dev->system_event_supported) {
2740 u32 result;
2741 u32 value;
2742 int retries = 3;
2743
2744 do {
2745 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2746 switch (result) {
2747 case TOS_SUCCESS:
2748 toshiba_acpi_report_hotkey(dev, (int)value);
2749 dev->key_event_valid = 1;
2750 dev->last_key_event = value;
2751 break;
2752 case TOS_NOT_SUPPORTED:
2753 /*
2754 * This is a workaround for an unresolved
2755 * issue on some machines where system events
2756 * sporadically become disabled.
2757 */
2758 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2759 if (result == TOS_SUCCESS)
2760 pr_notice("Re-enabled hotkeys\n");
2761 /* Fall through */
2762 default:
2763 retries--;
2764 break;
2765 }
2766 } while (retries && result != TOS_FIFO_EMPTY);
2767 }
2768 }
2769
2770 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2771 {
2772 const struct key_entry *keymap = toshiba_acpi_keymap;
2773 acpi_handle ec_handle;
2774 int error;
2775
2776 if (disable_hotkeys) {
2777 pr_info("Hotkeys disabled by module parameter\n");
2778 return 0;
2779 }
2780
2781 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2782 pr_info("WMI event detected, hotkeys will not be monitored\n");
2783 return 0;
2784 }
2785
2786 error = toshiba_acpi_enable_hotkeys(dev);
2787 if (error)
2788 return error;
2789
2790 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2791 pr_notice("Unable to query Hotkey Event Type\n");
2792
2793 dev->hotkey_dev = input_allocate_device();
2794 if (!dev->hotkey_dev)
2795 return -ENOMEM;
2796
2797 dev->hotkey_dev->name = "Toshiba input device";
2798 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2799 dev->hotkey_dev->id.bustype = BUS_HOST;
2800
2801 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2802 !dev->kbd_function_keys_supported)
2803 keymap = toshiba_acpi_keymap;
2804 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2805 dev->kbd_function_keys_supported)
2806 keymap = toshiba_acpi_alt_keymap;
2807 else
2808 pr_info("Unknown event type received %x\n",
2809 dev->hotkey_event_type);
2810 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2811 if (error)
2812 goto err_free_dev;
2813
2814 /*
2815 * For some machines the SCI responsible for providing hotkey
2816 * notification doesn't fire. We can trigger the notification
2817 * whenever the Fn key is pressed using the NTFY method, if
2818 * supported, so if it's present set up an i8042 key filter
2819 * for this purpose.
2820 */
2821 ec_handle = ec_get_handle();
2822 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2823 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2824
2825 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2826 if (error) {
2827 pr_err("Error installing key filter\n");
2828 goto err_free_dev;
2829 }
2830
2831 dev->ntfy_supported = 1;
2832 }
2833
2834 /*
2835 * Determine hotkey query interface. Prefer using the INFO
2836 * method when it is available.
2837 */
2838 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2839 dev->info_supported = 1;
2840 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2841 dev->system_event_supported = 1;
2842
2843 if (!dev->info_supported && !dev->system_event_supported) {
2844 pr_warn("No hotkey query interface found\n");
2845 goto err_remove_filter;
2846 }
2847
2848 error = input_register_device(dev->hotkey_dev);
2849 if (error) {
2850 pr_info("Unable to register input device\n");
2851 goto err_remove_filter;
2852 }
2853
2854 return 0;
2855
2856 err_remove_filter:
2857 if (dev->ntfy_supported)
2858 i8042_remove_filter(toshiba_acpi_i8042_filter);
2859 err_free_dev:
2860 input_free_device(dev->hotkey_dev);
2861 dev->hotkey_dev = NULL;
2862 return error;
2863 }
2864
2865 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2866 {
2867 struct backlight_properties props;
2868 int brightness;
2869 int ret;
2870
2871 /*
2872 * Some machines don't support the backlight methods at all, and
2873 * others support it read-only. Either of these is pretty useless,
2874 * so only register the backlight device if the backlight method
2875 * supports both reads and writes.
2876 */
2877 brightness = __get_lcd_brightness(dev);
2878 if (brightness < 0)
2879 return 0;
2880 /*
2881 * If transflective backlight is supported and the brightness is zero
2882 * (lowest brightness level), the set_lcd_brightness function will
2883 * activate the transflective backlight, making the LCD appear to be
2884 * turned off, simply increment the brightness level to avoid that.
2885 */
2886 if (dev->tr_backlight_supported && brightness == 0)
2887 brightness++;
2888 ret = set_lcd_brightness(dev, brightness);
2889 if (ret) {
2890 pr_debug("Backlight method is read-only, disabling backlight support\n");
2891 return 0;
2892 }
2893
2894 /*
2895 * Tell acpi-video-detect code to prefer vendor backlight on all
2896 * systems with transflective backlight and on dmi matched systems.
2897 */
2898 if (dev->tr_backlight_supported ||
2899 dmi_check_system(toshiba_vendor_backlight_dmi))
2900 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2901
2902 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2903 return 0;
2904
2905 memset(&props, 0, sizeof(props));
2906 props.type = BACKLIGHT_PLATFORM;
2907 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2908
2909 /* Adding an extra level and having 0 change to transflective mode */
2910 if (dev->tr_backlight_supported)
2911 props.max_brightness++;
2912
2913 dev->backlight_dev = backlight_device_register("toshiba",
2914 &dev->acpi_dev->dev,
2915 dev,
2916 &toshiba_backlight_data,
2917 &props);
2918 if (IS_ERR(dev->backlight_dev)) {
2919 ret = PTR_ERR(dev->backlight_dev);
2920 pr_err("Could not register toshiba backlight device\n");
2921 dev->backlight_dev = NULL;
2922 return ret;
2923 }
2924
2925 dev->backlight_dev->props.brightness = brightness;
2926 return 0;
2927 }
2928
2929 static void print_supported_features(struct toshiba_acpi_dev *dev)
2930 {
2931 pr_info("Supported laptop features:");
2932
2933 if (dev->hotkey_dev)
2934 pr_cont(" hotkeys");
2935 if (dev->backlight_dev)
2936 pr_cont(" backlight");
2937 if (dev->video_supported)
2938 pr_cont(" video-out");
2939 if (dev->fan_supported)
2940 pr_cont(" fan");
2941 if (dev->tr_backlight_supported)
2942 pr_cont(" transflective-backlight");
2943 if (dev->illumination_supported)
2944 pr_cont(" illumination");
2945 if (dev->kbd_illum_supported)
2946 pr_cont(" keyboard-backlight");
2947 if (dev->touchpad_supported)
2948 pr_cont(" touchpad");
2949 if (dev->eco_supported)
2950 pr_cont(" eco-led");
2951 if (dev->accelerometer_supported)
2952 pr_cont(" accelerometer-axes");
2953 if (dev->usb_sleep_charge_supported)
2954 pr_cont(" usb-sleep-charge");
2955 if (dev->usb_rapid_charge_supported)
2956 pr_cont(" usb-rapid-charge");
2957 if (dev->usb_sleep_music_supported)
2958 pr_cont(" usb-sleep-music");
2959 if (dev->kbd_function_keys_supported)
2960 pr_cont(" special-function-keys");
2961 if (dev->panel_power_on_supported)
2962 pr_cont(" panel-power-on");
2963 if (dev->usb_three_supported)
2964 pr_cont(" usb3");
2965 if (dev->wwan_supported)
2966 pr_cont(" wwan");
2967 if (dev->cooling_method_supported)
2968 pr_cont(" cooling-method");
2969
2970 pr_cont("\n");
2971 }
2972
2973 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2974 {
2975 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2976
2977 misc_deregister(&dev->miscdev);
2978
2979 remove_toshiba_proc_entries(dev);
2980
2981 if (dev->accelerometer_supported && dev->indio_dev) {
2982 iio_device_unregister(dev->indio_dev);
2983 iio_device_free(dev->indio_dev);
2984 }
2985
2986 if (dev->sysfs_created)
2987 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
2988 &toshiba_attr_group);
2989
2990 if (dev->ntfy_supported) {
2991 i8042_remove_filter(toshiba_acpi_i8042_filter);
2992 cancel_work_sync(&dev->hotkey_work);
2993 }
2994
2995 if (dev->hotkey_dev)
2996 input_unregister_device(dev->hotkey_dev);
2997
2998 backlight_device_unregister(dev->backlight_dev);
2999
3000 if (dev->illumination_led_registered)
3001 led_classdev_unregister(&dev->led_dev);
3002
3003 if (dev->kbd_led_registered)
3004 led_classdev_unregister(&dev->kbd_led);
3005
3006 if (dev->eco_led_registered)
3007 led_classdev_unregister(&dev->eco_led);
3008
3009 if (dev->wwan_rfk) {
3010 rfkill_unregister(dev->wwan_rfk);
3011 rfkill_destroy(dev->wwan_rfk);
3012 }
3013
3014 if (toshiba_acpi)
3015 toshiba_acpi = NULL;
3016
3017 kfree(dev);
3018
3019 return 0;
3020 }
3021
3022 static const char *find_hci_method(acpi_handle handle)
3023 {
3024 if (acpi_has_method(handle, "GHCI"))
3025 return "GHCI";
3026
3027 if (acpi_has_method(handle, "SPFC"))
3028 return "SPFC";
3029
3030 return NULL;
3031 }
3032
3033 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3034 {
3035 struct toshiba_acpi_dev *dev;
3036 const char *hci_method;
3037 u32 dummy;
3038 int ret = 0;
3039
3040 if (toshiba_acpi)
3041 return -EBUSY;
3042
3043 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3044 TOSHIBA_ACPI_VERSION);
3045
3046 hci_method = find_hci_method(acpi_dev->handle);
3047 if (!hci_method) {
3048 pr_err("HCI interface not found\n");
3049 return -ENODEV;
3050 }
3051
3052 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3053 if (!dev)
3054 return -ENOMEM;
3055 dev->acpi_dev = acpi_dev;
3056 dev->method_hci = hci_method;
3057 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3058 dev->miscdev.name = "toshiba_acpi";
3059 dev->miscdev.fops = &toshiba_acpi_fops;
3060
3061 ret = misc_register(&dev->miscdev);
3062 if (ret) {
3063 pr_err("Failed to register miscdevice\n");
3064 kfree(dev);
3065 return ret;
3066 }
3067
3068 acpi_dev->driver_data = dev;
3069 dev_set_drvdata(&acpi_dev->dev, dev);
3070
3071 /* Query the BIOS for supported features */
3072
3073 /*
3074 * The "Special Functions" are always supported by the laptops
3075 * with the new keyboard layout, query for its presence to help
3076 * determine the keymap layout to use.
3077 */
3078 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3079 dev->kbd_function_keys_supported = !ret;
3080
3081 dev->hotkey_event_type = 0;
3082 if (toshiba_acpi_setup_keyboard(dev))
3083 pr_info("Unable to activate hotkeys\n");
3084
3085 /* Determine whether or not BIOS supports transflective backlight */
3086 ret = get_tr_backlight_status(dev, &dummy);
3087 dev->tr_backlight_supported = !ret;
3088
3089 ret = toshiba_acpi_setup_backlight(dev);
3090 if (ret)
3091 goto error;
3092
3093 toshiba_illumination_available(dev);
3094 if (dev->illumination_supported) {
3095 dev->led_dev.name = "toshiba::illumination";
3096 dev->led_dev.max_brightness = 1;
3097 dev->led_dev.brightness_set = toshiba_illumination_set;
3098 dev->led_dev.brightness_get = toshiba_illumination_get;
3099 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3100 dev->illumination_led_registered = true;
3101 }
3102
3103 toshiba_eco_mode_available(dev);
3104 if (dev->eco_supported) {
3105 dev->eco_led.name = "toshiba::eco_mode";
3106 dev->eco_led.max_brightness = 1;
3107 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3108 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3109 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3110 dev->eco_led_registered = true;
3111 }
3112
3113 toshiba_kbd_illum_available(dev);
3114 /*
3115 * Only register the LED if KBD illumination is supported
3116 * and the keyboard backlight operation mode is set to FN-Z
3117 * or we detect a second gen keyboard backlight
3118 */
3119 if (dev->kbd_illum_supported &&
3120 (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3121 dev->kbd_led.name = "toshiba::kbd_backlight";
3122 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3123 dev->kbd_led.max_brightness = 1;
3124 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3125 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3126 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3127 dev->kbd_led_registered = true;
3128 }
3129
3130 ret = toshiba_touchpad_get(dev, &dummy);
3131 dev->touchpad_supported = !ret;
3132
3133 toshiba_accelerometer_available(dev);
3134 if (dev->accelerometer_supported) {
3135 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3136 if (!dev->indio_dev) {
3137 pr_err("Unable to allocate iio device\n");
3138 goto iio_error;
3139 }
3140
3141 pr_info("Registering Toshiba accelerometer iio device\n");
3142
3143 dev->indio_dev->info = &toshiba_iio_accel_info;
3144 dev->indio_dev->name = "Toshiba accelerometer";
3145 dev->indio_dev->dev.parent = &acpi_dev->dev;
3146 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3147 dev->indio_dev->channels = toshiba_iio_accel_channels;
3148 dev->indio_dev->num_channels =
3149 ARRAY_SIZE(toshiba_iio_accel_channels);
3150
3151 ret = iio_device_register(dev->indio_dev);
3152 if (ret < 0) {
3153 pr_err("Unable to register iio device\n");
3154 iio_device_free(dev->indio_dev);
3155 }
3156 }
3157 iio_error:
3158
3159 toshiba_usb_sleep_charge_available(dev);
3160
3161 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3162 dev->usb_rapid_charge_supported = !ret;
3163
3164 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3165 dev->usb_sleep_music_supported = !ret;
3166
3167 ret = toshiba_panel_power_on_get(dev, &dummy);
3168 dev->panel_power_on_supported = !ret;
3169
3170 ret = toshiba_usb_three_get(dev, &dummy);
3171 dev->usb_three_supported = !ret;
3172
3173 ret = get_video_status(dev, &dummy);
3174 dev->video_supported = !ret;
3175
3176 ret = get_fan_status(dev, &dummy);
3177 dev->fan_supported = !ret;
3178
3179 toshiba_wwan_available(dev);
3180 if (dev->wwan_supported)
3181 toshiba_acpi_setup_wwan_rfkill(dev);
3182
3183 toshiba_cooling_method_available(dev);
3184
3185 print_supported_features(dev);
3186
3187 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3188 &toshiba_attr_group);
3189 if (ret) {
3190 dev->sysfs_created = 0;
3191 goto error;
3192 }
3193 dev->sysfs_created = !ret;
3194
3195 create_toshiba_proc_entries(dev);
3196
3197 toshiba_acpi = dev;
3198
3199 return 0;
3200
3201 error:
3202 toshiba_acpi_remove(acpi_dev);
3203 return ret;
3204 }
3205
3206 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3207 {
3208 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3209
3210 switch (event) {
3211 case 0x80: /* Hotkeys and some system events */
3212 /*
3213 * Machines with this WMI GUID aren't supported due to bugs in
3214 * their AML.
3215 *
3216 * Return silently to avoid triggering a netlink event.
3217 */
3218 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3219 return;
3220 toshiba_acpi_process_hotkeys(dev);
3221 break;
3222 case 0x81: /* Dock events */
3223 case 0x82:
3224 case 0x83:
3225 pr_info("Dock event received %x\n", event);
3226 break;
3227 case 0x88: /* Thermal events */
3228 pr_info("Thermal event received\n");
3229 break;
3230 case 0x8f: /* LID closed */
3231 case 0x90: /* LID is closed and Dock has been ejected */
3232 break;
3233 case 0x8c: /* SATA power events */
3234 case 0x8b:
3235 pr_info("SATA power event received %x\n", event);
3236 break;
3237 case 0x92: /* Keyboard backlight mode changed */
3238 dev->kbd_event_generated = true;
3239 /* Update sysfs entries */
3240 if (sysfs_update_group(&acpi_dev->dev.kobj,
3241 &toshiba_attr_group))
3242 pr_err("Unable to update sysfs entries\n");
3243 /* Notify LED subsystem about keyboard backlight change */
3244 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3245 led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3246 (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3247 LED_FULL : LED_OFF);
3248 break;
3249 case 0x85: /* Unknown */
3250 case 0x8d: /* Unknown */
3251 case 0x8e: /* Unknown */
3252 case 0x94: /* Unknown */
3253 case 0x95: /* Unknown */
3254 default:
3255 pr_info("Unknown event received %x\n", event);
3256 break;
3257 }
3258
3259 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3260 dev_name(&acpi_dev->dev),
3261 event, (event == 0x80) ?
3262 dev->last_key_event : 0);
3263 }
3264
3265 #ifdef CONFIG_PM_SLEEP
3266 static int toshiba_acpi_suspend(struct device *device)
3267 {
3268 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3269
3270 if (dev->hotkey_dev) {
3271 u32 result;
3272
3273 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3274 if (result != TOS_SUCCESS)
3275 pr_info("Unable to disable hotkeys\n");
3276 }
3277
3278 return 0;
3279 }
3280
3281 static int toshiba_acpi_resume(struct device *device)
3282 {
3283 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3284
3285 if (dev->hotkey_dev) {
3286 if (toshiba_acpi_enable_hotkeys(dev))
3287 pr_info("Unable to re-enable hotkeys\n");
3288 }
3289
3290 if (dev->wwan_rfk) {
3291 if (!toshiba_wireless_status(dev))
3292 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3293 }
3294
3295 return 0;
3296 }
3297 #endif
3298
3299 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3300 toshiba_acpi_suspend, toshiba_acpi_resume);
3301
3302 static struct acpi_driver toshiba_acpi_driver = {
3303 .name = "Toshiba ACPI driver",
3304 .owner = THIS_MODULE,
3305 .ids = toshiba_device_ids,
3306 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3307 .ops = {
3308 .add = toshiba_acpi_add,
3309 .remove = toshiba_acpi_remove,
3310 .notify = toshiba_acpi_notify,
3311 },
3312 .drv.pm = &toshiba_acpi_pm,
3313 };
3314
3315 static int __init toshiba_acpi_init(void)
3316 {
3317 int ret;
3318
3319 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3320 if (!toshiba_proc_dir) {
3321 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3322 return -ENODEV;
3323 }
3324
3325 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3326 if (ret) {
3327 pr_err("Failed to register ACPI driver: %d\n", ret);
3328 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3329 }
3330
3331 return ret;
3332 }
3333
3334 static void __exit toshiba_acpi_exit(void)
3335 {
3336 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3337 if (toshiba_proc_dir)
3338 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3339 }
3340
3341 module_init(toshiba_acpi_init);
3342 module_exit(toshiba_acpi_exit);
Linux with added FPC-III support