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1/*
2 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
3 *
4 * Copyright (C) 2002-2004 John Belmonte
5 * Copyright (C) 2008 Philip Langdale
6 * Copyright (C) 2010 Pierre Ducroquet
7 * Copyright (C) 2014-2016 Azael Avalos
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * The full GNU General Public License is included in this distribution in
20 * the file called "COPYING".
21 *
22 * The devolpment page for this driver is located at
23 * http://memebeam.org/toys/ToshibaAcpiDriver.
24 *
25 * Credits:
26 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
27 * engineering the Windows drivers
28 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
29 * Rob Miller - TV out and hotkeys help
30 */
31
32#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
33
34#define TOSHIBA_ACPI_VERSION "0.24"
35#define PROC_INTERFACE_VERSION 1
36
37#include <linux/kernel.h>
38#include <linux/module.h>
39#include <linux/moduleparam.h>
40#include <linux/init.h>
41#include <linux/types.h>
42#include <linux/proc_fs.h>
43#include <linux/seq_file.h>
44#include <linux/backlight.h>
45#include <linux/input.h>
46#include <linux/input/sparse-keymap.h>
47#include <linux/leds.h>
48#include <linux/slab.h>
49#include <linux/workqueue.h>
50#include <linux/i8042.h>
51#include <linux/acpi.h>
52#include <linux/dmi.h>
53#include <linux/uaccess.h>
54#include <linux/miscdevice.h>
55#include <linux/rfkill.h>
56#include <linux/iio/iio.h>
57#include <linux/toshiba.h>
58#include <acpi/video.h>
59
60MODULE_AUTHOR("John Belmonte");
61MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
62MODULE_LICENSE("GPL");
63
64#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
65
66/* Scan code for Fn key on TOS1900 models */
67#define TOS1900_FN_SCAN 0x6e
68
69/* Toshiba ACPI method paths */
70#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
71
72/*
73 * The Toshiba configuration interface is composed of the HCI and the SCI,
74 * which are defined as follows:
75 *
76 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
77 * be uniform across all their models. Ideally we would just call
78 * dedicated ACPI methods instead of using this primitive interface.
79 * However the ACPI methods seem to be incomplete in some areas (for
80 * example they allow setting, but not reading, the LCD brightness value),
81 * so this is still useful.
82 *
83 * SCI stands for "System Configuration Interface" which aim is to
84 * conceal differences in hardware between different models.
85 */
86
87#define TCI_WORDS 6
88
89/* Operations */
90#define HCI_SET 0xff00
91#define HCI_GET 0xfe00
92#define SCI_OPEN 0xf100
93#define SCI_CLOSE 0xf200
94#define SCI_GET 0xf300
95#define SCI_SET 0xf400
96
97/* Return codes */
98#define TOS_SUCCESS 0x0000
99#define TOS_SUCCESS2 0x0001
100#define TOS_OPEN_CLOSE_OK 0x0044
101#define TOS_FAILURE 0x1000
102#define TOS_NOT_SUPPORTED 0x8000
103#define TOS_ALREADY_OPEN 0x8100
104#define TOS_NOT_OPENED 0x8200
105#define TOS_INPUT_DATA_ERROR 0x8300
106#define TOS_WRITE_PROTECTED 0x8400
107#define TOS_NOT_PRESENT 0x8600
108#define TOS_FIFO_EMPTY 0x8c00
109#define TOS_DATA_NOT_AVAILABLE 0x8d20
110#define TOS_NOT_INITIALIZED 0x8d50
111#define TOS_NOT_INSTALLED 0x8e00
112
113/* Registers */
114#define HCI_FAN 0x0004
115#define HCI_TR_BACKLIGHT 0x0005
116#define HCI_SYSTEM_EVENT 0x0016
117#define HCI_VIDEO_OUT 0x001c
118#define HCI_HOTKEY_EVENT 0x001e
119#define HCI_LCD_BRIGHTNESS 0x002a
120#define HCI_WIRELESS 0x0056
121#define HCI_ACCELEROMETER 0x006d
122#define HCI_COOLING_METHOD 0x007f
123#define HCI_KBD_ILLUMINATION 0x0095
124#define HCI_ECO_MODE 0x0097
125#define HCI_ACCELEROMETER2 0x00a6
126#define HCI_SYSTEM_INFO 0xc000
127#define SCI_PANEL_POWER_ON 0x010d
128#define SCI_ILLUMINATION 0x014e
129#define SCI_USB_SLEEP_CHARGE 0x0150
130#define SCI_KBD_ILLUM_STATUS 0x015c
131#define SCI_USB_SLEEP_MUSIC 0x015e
132#define SCI_USB_THREE 0x0169
133#define SCI_TOUCHPAD 0x050e
134#define SCI_KBD_FUNCTION_KEYS 0x0522
135
136/* Field definitions */
137#define HCI_ACCEL_MASK 0x7fff
138#define HCI_ACCEL_DIRECTION_MASK 0x8000
139#define HCI_HOTKEY_DISABLE 0x0b
140#define HCI_HOTKEY_ENABLE 0x09
141#define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
142#define HCI_LCD_BRIGHTNESS_BITS 3
143#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
144#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
145#define HCI_MISC_SHIFT 0x10
146#define HCI_SYSTEM_TYPE1 0x10
147#define HCI_SYSTEM_TYPE2 0x11
148#define HCI_VIDEO_OUT_LCD 0x1
149#define HCI_VIDEO_OUT_CRT 0x2
150#define HCI_VIDEO_OUT_TV 0x4
151#define SCI_KBD_MODE_MASK 0x1f
152#define SCI_KBD_MODE_FNZ 0x1
153#define SCI_KBD_MODE_AUTO 0x2
154#define SCI_KBD_MODE_ON 0x8
155#define SCI_KBD_MODE_OFF 0x10
156#define SCI_KBD_TIME_MAX 0x3c001a
157#define HCI_WIRELESS_STATUS 0x1
158#define HCI_WIRELESS_WWAN 0x3
159#define HCI_WIRELESS_WWAN_STATUS 0x2000
160#define HCI_WIRELESS_WWAN_POWER 0x4000
161#define SCI_USB_CHARGE_MODE_MASK 0xff
162#define SCI_USB_CHARGE_DISABLED 0x00
163#define SCI_USB_CHARGE_ALTERNATE 0x09
164#define SCI_USB_CHARGE_TYPICAL 0x11
165#define SCI_USB_CHARGE_AUTO 0x21
166#define SCI_USB_CHARGE_BAT_MASK 0x7
167#define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
168#define SCI_USB_CHARGE_BAT_LVL_ON 0x4
169#define SCI_USB_CHARGE_BAT_LVL 0x0200
170#define SCI_USB_CHARGE_RAPID_DSP 0x0300
171
172struct toshiba_acpi_dev {
173 struct acpi_device *acpi_dev;
174 const char *method_hci;
175 struct input_dev *hotkey_dev;
176 struct work_struct hotkey_work;
177 struct backlight_device *backlight_dev;
178 struct led_classdev led_dev;
179 struct led_classdev kbd_led;
180 struct led_classdev eco_led;
181 struct miscdevice miscdev;
182 struct rfkill *wwan_rfk;
183 struct iio_dev *indio_dev;
184
185 int force_fan;
186 int last_key_event;
187 int key_event_valid;
188 int kbd_type;
189 int kbd_mode;
190 int kbd_time;
191 int usbsc_bat_level;
192 int usbsc_mode_base;
193 int hotkey_event_type;
194 int max_cooling_method;
195
196 unsigned int illumination_supported:1;
197 unsigned int video_supported:1;
198 unsigned int fan_supported:1;
199 unsigned int system_event_supported:1;
200 unsigned int ntfy_supported:1;
201 unsigned int info_supported:1;
202 unsigned int tr_backlight_supported:1;
203 unsigned int kbd_illum_supported:1;
204 unsigned int touchpad_supported:1;
205 unsigned int eco_supported:1;
206 unsigned int accelerometer_supported:1;
207 unsigned int usb_sleep_charge_supported:1;
208 unsigned int usb_rapid_charge_supported:1;
209 unsigned int usb_sleep_music_supported:1;
210 unsigned int kbd_function_keys_supported:1;
211 unsigned int panel_power_on_supported:1;
212 unsigned int usb_three_supported:1;
213 unsigned int wwan_supported:1;
214 unsigned int cooling_method_supported:1;
215 unsigned int sysfs_created:1;
216 unsigned int special_functions;
217
218 bool kbd_event_generated;
219 bool kbd_led_registered;
220 bool illumination_led_registered;
221 bool eco_led_registered;
222 bool killswitch;
223};
224
225static struct toshiba_acpi_dev *toshiba_acpi;
226
227static bool disable_hotkeys;
228module_param(disable_hotkeys, bool, 0444);
229MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
230
231static const struct acpi_device_id toshiba_device_ids[] = {
232 {"TOS6200", 0},
233 {"TOS6207", 0},
234 {"TOS6208", 0},
235 {"TOS1900", 0},
236 {"", 0},
237};
238MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
239
240static const struct key_entry toshiba_acpi_keymap[] = {
241 { KE_KEY, 0x9e, { KEY_RFKILL } },
242 { KE_KEY, 0x101, { KEY_MUTE } },
243 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
244 { KE_KEY, 0x103, { KEY_ZOOMIN } },
245 { KE_KEY, 0x10f, { KEY_TAB } },
246 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
247 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
248 { KE_KEY, 0x13b, { KEY_COFFEE } },
249 { KE_KEY, 0x13c, { KEY_BATTERY } },
250 { KE_KEY, 0x13d, { KEY_SLEEP } },
251 { KE_KEY, 0x13e, { KEY_SUSPEND } },
252 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
253 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
254 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
255 { KE_KEY, 0x142, { KEY_WLAN } },
256 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
257 { KE_KEY, 0x17f, { KEY_FN } },
258 { KE_KEY, 0xb05, { KEY_PROG2 } },
259 { KE_KEY, 0xb06, { KEY_WWW } },
260 { KE_KEY, 0xb07, { KEY_MAIL } },
261 { KE_KEY, 0xb30, { KEY_STOP } },
262 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
263 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
264 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
265 { KE_KEY, 0xb5a, { KEY_MEDIA } },
266 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
267 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
268 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
269 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
270 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
271 { KE_END, 0 },
272};
273
274static const struct key_entry toshiba_acpi_alt_keymap[] = {
275 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
276 { KE_KEY, 0x103, { KEY_ZOOMIN } },
277 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
278 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
279 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
280 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
281 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
282 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
283 { KE_KEY, 0x157, { KEY_MUTE } },
284 { KE_KEY, 0x158, { KEY_WLAN } },
285 { KE_END, 0 },
286};
287
288/*
289 * List of models which have a broken acpi-video backlight interface and thus
290 * need to use the toshiba (vendor) interface instead.
291 */
292static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
293 {}
294};
295
296/*
297 * Utility
298 */
299
300static inline void _set_bit(u32 *word, u32 mask, int value)
301{
302 *word = (*word & ~mask) | (mask * value);
303}
304
305/*
306 * ACPI interface wrappers
307 */
308
309static int write_acpi_int(const char *methodName, int val)
310{
311 acpi_status status;
312
313 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
314 return (status == AE_OK) ? 0 : -EIO;
315}
316
317/*
318 * Perform a raw configuration call. Here we don't care about input or output
319 * buffer format.
320 */
321static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
322 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
323{
324 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
325 struct acpi_object_list params;
326 struct acpi_buffer results;
327 acpi_status status;
328 int i;
329
330 params.count = TCI_WORDS;
331 params.pointer = in_objs;
332 for (i = 0; i < TCI_WORDS; ++i) {
333 in_objs[i].type = ACPI_TYPE_INTEGER;
334 in_objs[i].integer.value = in[i];
335 }
336
337 results.length = sizeof(out_objs);
338 results.pointer = out_objs;
339
340 status = acpi_evaluate_object(dev->acpi_dev->handle,
341 (char *)dev->method_hci, ¶ms,
342 &results);
343 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
344 for (i = 0; i < out_objs->package.count; ++i)
345 out[i] = out_objs->package.elements[i].integer.value;
346 }
347
348 return status;
349}
350
351/*
352 * Common hci tasks
353 *
354 * In addition to the ACPI status, the HCI system returns a result which
355 * may be useful (such as "not supported").
356 */
357
358static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
359{
360 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
361 u32 out[TCI_WORDS];
362 acpi_status status = tci_raw(dev, in, out);
363
364 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
365}
366
367static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
368{
369 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
370 u32 out[TCI_WORDS];
371 acpi_status status = tci_raw(dev, in, out);
372
373 if (ACPI_FAILURE(status))
374 return TOS_FAILURE;
375
376 *out1 = out[2];
377
378 return out[0];
379}
380
381/*
382 * Common sci tasks
383 */
384
385static int sci_open(struct toshiba_acpi_dev *dev)
386{
387 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
388 u32 out[TCI_WORDS];
389 acpi_status status = tci_raw(dev, in, out);
390
391 if (ACPI_FAILURE(status)) {
392 pr_err("ACPI call to open SCI failed\n");
393 return 0;
394 }
395
396 if (out[0] == TOS_OPEN_CLOSE_OK) {
397 return 1;
398 } else if (out[0] == TOS_ALREADY_OPEN) {
399 pr_info("Toshiba SCI already opened\n");
400 return 1;
401 } else if (out[0] == TOS_NOT_SUPPORTED) {
402 /*
403 * Some BIOSes do not have the SCI open/close functions
404 * implemented and return 0x8000 (Not Supported), failing to
405 * register some supported features.
406 *
407 * Simply return 1 if we hit those affected laptops to make the
408 * supported features work.
409 *
410 * In the case that some laptops really do not support the SCI,
411 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
412 * and thus, not registering support for the queried feature.
413 */
414 return 1;
415 } else if (out[0] == TOS_NOT_PRESENT) {
416 pr_info("Toshiba SCI is not present\n");
417 }
418
419 return 0;
420}
421
422static void sci_close(struct toshiba_acpi_dev *dev)
423{
424 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
425 u32 out[TCI_WORDS];
426 acpi_status status = tci_raw(dev, in, out);
427
428 if (ACPI_FAILURE(status)) {
429 pr_err("ACPI call to close SCI failed\n");
430 return;
431 }
432
433 if (out[0] == TOS_OPEN_CLOSE_OK)
434 return;
435 else if (out[0] == TOS_NOT_OPENED)
436 pr_info("Toshiba SCI not opened\n");
437 else if (out[0] == TOS_NOT_PRESENT)
438 pr_info("Toshiba SCI is not present\n");
439}
440
441static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
442{
443 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
444 u32 out[TCI_WORDS];
445 acpi_status status = tci_raw(dev, in, out);
446
447 if (ACPI_FAILURE(status))
448 return TOS_FAILURE;
449
450 *out1 = out[2];
451
452 return out[0];
453}
454
455static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
456{
457 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
458 u32 out[TCI_WORDS];
459 acpi_status status = tci_raw(dev, in, out);
460
461 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
462}
463
464/* Illumination support */
465static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
466{
467 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
468 u32 out[TCI_WORDS];
469 acpi_status status;
470
471 dev->illumination_supported = 0;
472 dev->illumination_led_registered = false;
473
474 if (!sci_open(dev))
475 return;
476
477 status = tci_raw(dev, in, out);
478 sci_close(dev);
479 if (ACPI_FAILURE(status)) {
480 pr_err("ACPI call to query Illumination support failed\n");
481 return;
482 }
483
484 if (out[0] != TOS_SUCCESS)
485 return;
486
487 dev->illumination_supported = 1;
488}
489
490static void toshiba_illumination_set(struct led_classdev *cdev,
491 enum led_brightness brightness)
492{
493 struct toshiba_acpi_dev *dev = container_of(cdev,
494 struct toshiba_acpi_dev, led_dev);
495 u32 result;
496 u32 state;
497
498 /* First request : initialize communication. */
499 if (!sci_open(dev))
500 return;
501
502 /* Switch the illumination on/off */
503 state = brightness ? 1 : 0;
504 result = sci_write(dev, SCI_ILLUMINATION, state);
505 sci_close(dev);
506 if (result == TOS_FAILURE)
507 pr_err("ACPI call for illumination failed\n");
508}
509
510static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
511{
512 struct toshiba_acpi_dev *dev = container_of(cdev,
513 struct toshiba_acpi_dev, led_dev);
514 u32 result;
515 u32 state;
516
517 /* First request : initialize communication. */
518 if (!sci_open(dev))
519 return LED_OFF;
520
521 /* Check the illumination */
522 result = sci_read(dev, SCI_ILLUMINATION, &state);
523 sci_close(dev);
524 if (result == TOS_FAILURE) {
525 pr_err("ACPI call for illumination failed\n");
526 return LED_OFF;
527 } else if (result != TOS_SUCCESS) {
528 return LED_OFF;
529 }
530
531 return state ? LED_FULL : LED_OFF;
532}
533
534/* KBD Illumination */
535static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
536{
537 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
538 u32 out[TCI_WORDS];
539 acpi_status status;
540
541 dev->kbd_illum_supported = 0;
542 dev->kbd_led_registered = false;
543 dev->kbd_event_generated = false;
544
545 if (!sci_open(dev))
546 return;
547
548 status = tci_raw(dev, in, out);
549 sci_close(dev);
550 if (ACPI_FAILURE(status)) {
551 pr_err("ACPI call to query kbd illumination support failed\n");
552 return;
553 }
554
555 if (out[0] != TOS_SUCCESS)
556 return;
557
558 /*
559 * Check for keyboard backlight timeout max value,
560 * previous kbd backlight implementation set this to
561 * 0x3c0003, and now the new implementation set this
562 * to 0x3c001a, use this to distinguish between them.
563 */
564 if (out[3] == SCI_KBD_TIME_MAX)
565 dev->kbd_type = 2;
566 else
567 dev->kbd_type = 1;
568 /* Get the current keyboard backlight mode */
569 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
570 /* Get the current time (1-60 seconds) */
571 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
572 /* Flag as supported */
573 dev->kbd_illum_supported = 1;
574}
575
576static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
577{
578 u32 result;
579
580 if (!sci_open(dev))
581 return -EIO;
582
583 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
584 sci_close(dev);
585 if (result == TOS_FAILURE)
586 pr_err("ACPI call to set KBD backlight status failed\n");
587 else if (result == TOS_NOT_SUPPORTED)
588 return -ENODEV;
589
590 return result == TOS_SUCCESS ? 0 : -EIO;
591}
592
593static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
594{
595 u32 result;
596
597 if (!sci_open(dev))
598 return -EIO;
599
600 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
601 sci_close(dev);
602 if (result == TOS_FAILURE)
603 pr_err("ACPI call to get KBD backlight status failed\n");
604 else if (result == TOS_NOT_SUPPORTED)
605 return -ENODEV;
606
607 return result == TOS_SUCCESS ? 0 : -EIO;
608}
609
610static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
611{
612 struct toshiba_acpi_dev *dev = container_of(cdev,
613 struct toshiba_acpi_dev, kbd_led);
614 u32 result;
615 u32 state;
616
617 /* Check the keyboard backlight state */
618 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
619 if (result == TOS_FAILURE) {
620 pr_err("ACPI call to get the keyboard backlight failed\n");
621 return LED_OFF;
622 } else if (result != TOS_SUCCESS) {
623 return LED_OFF;
624 }
625
626 return state ? LED_FULL : LED_OFF;
627}
628
629static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
630 enum led_brightness brightness)
631{
632 struct toshiba_acpi_dev *dev = container_of(cdev,
633 struct toshiba_acpi_dev, kbd_led);
634 u32 result;
635 u32 state;
636
637 /* Set the keyboard backlight state */
638 state = brightness ? 1 : 0;
639 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
640 if (result == TOS_FAILURE)
641 pr_err("ACPI call to set KBD Illumination mode failed\n");
642}
643
644/* TouchPad support */
645static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
646{
647 u32 result;
648
649 if (!sci_open(dev))
650 return -EIO;
651
652 result = sci_write(dev, SCI_TOUCHPAD, state);
653 sci_close(dev);
654 if (result == TOS_FAILURE)
655 pr_err("ACPI call to set the touchpad failed\n");
656 else if (result == TOS_NOT_SUPPORTED)
657 return -ENODEV;
658
659 return result == TOS_SUCCESS ? 0 : -EIO;
660}
661
662static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
663{
664 u32 result;
665
666 if (!sci_open(dev))
667 return -EIO;
668
669 result = sci_read(dev, SCI_TOUCHPAD, state);
670 sci_close(dev);
671 if (result == TOS_FAILURE)
672 pr_err("ACPI call to query the touchpad failed\n");
673 else if (result == TOS_NOT_SUPPORTED)
674 return -ENODEV;
675
676 return result == TOS_SUCCESS ? 0 : -EIO;
677}
678
679/* Eco Mode support */
680static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
681{
682 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
683 u32 out[TCI_WORDS];
684 acpi_status status;
685
686 dev->eco_supported = 0;
687 dev->eco_led_registered = false;
688
689 status = tci_raw(dev, in, out);
690 if (ACPI_FAILURE(status)) {
691 pr_err("ACPI call to get ECO led failed\n");
692 return;
693 }
694
695 if (out[0] == TOS_INPUT_DATA_ERROR) {
696 /*
697 * If we receive 0x8300 (Input Data Error), it means that the
698 * LED device is present, but that we just screwed the input
699 * parameters.
700 *
701 * Let's query the status of the LED to see if we really have a
702 * success response, indicating the actual presense of the LED,
703 * bail out otherwise.
704 */
705 in[3] = 1;
706 status = tci_raw(dev, in, out);
707 if (ACPI_FAILURE(status)) {
708 pr_err("ACPI call to get ECO led failed\n");
709 return;
710 }
711
712 if (out[0] != TOS_SUCCESS)
713 return;
714
715 dev->eco_supported = 1;
716 }
717}
718
719static enum led_brightness
720toshiba_eco_mode_get_status(struct led_classdev *cdev)
721{
722 struct toshiba_acpi_dev *dev = container_of(cdev,
723 struct toshiba_acpi_dev, eco_led);
724 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
725 u32 out[TCI_WORDS];
726 acpi_status status;
727
728 status = tci_raw(dev, in, out);
729 if (ACPI_FAILURE(status)) {
730 pr_err("ACPI call to get ECO led failed\n");
731 return LED_OFF;
732 }
733
734 if (out[0] != TOS_SUCCESS)
735 return LED_OFF;
736
737 return out[2] ? LED_FULL : LED_OFF;
738}
739
740static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
741 enum led_brightness brightness)
742{
743 struct toshiba_acpi_dev *dev = container_of(cdev,
744 struct toshiba_acpi_dev, eco_led);
745 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
746 u32 out[TCI_WORDS];
747 acpi_status status;
748
749 /* Switch the Eco Mode led on/off */
750 in[2] = (brightness) ? 1 : 0;
751 status = tci_raw(dev, in, out);
752 if (ACPI_FAILURE(status))
753 pr_err("ACPI call to set ECO led failed\n");
754}
755
756/* Accelerometer support */
757static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
758{
759 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
760 u32 out[TCI_WORDS];
761 acpi_status status;
762
763 dev->accelerometer_supported = 0;
764
765 /*
766 * Check if the accelerometer call exists,
767 * this call also serves as initialization
768 */
769 status = tci_raw(dev, in, out);
770 if (ACPI_FAILURE(status)) {
771 pr_err("ACPI call to query the accelerometer failed\n");
772 return;
773 }
774
775 if (out[0] != TOS_SUCCESS)
776 return;
777
778 dev->accelerometer_supported = 1;
779}
780
781static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
782 u32 *xy, u32 *z)
783{
784 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
785 u32 out[TCI_WORDS];
786 acpi_status status;
787
788 /* Check the Accelerometer status */
789 status = tci_raw(dev, in, out);
790 if (ACPI_FAILURE(status)) {
791 pr_err("ACPI call to query the accelerometer failed\n");
792 return -EIO;
793 }
794
795 if (out[0] == TOS_NOT_SUPPORTED)
796 return -ENODEV;
797
798 if (out[0] != TOS_SUCCESS)
799 return -EIO;
800
801 *xy = out[2];
802 *z = out[4];
803
804 return 0;
805}
806
807/* Sleep (Charge and Music) utilities support */
808static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
809{
810 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
811 u32 out[TCI_WORDS];
812 acpi_status status;
813
814 dev->usb_sleep_charge_supported = 0;
815
816 if (!sci_open(dev))
817 return;
818
819 status = tci_raw(dev, in, out);
820 if (ACPI_FAILURE(status)) {
821 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
822 sci_close(dev);
823 return;
824 }
825
826 if (out[0] != TOS_SUCCESS) {
827 sci_close(dev);
828 return;
829 }
830
831 dev->usbsc_mode_base = out[4];
832
833 in[5] = SCI_USB_CHARGE_BAT_LVL;
834 status = tci_raw(dev, in, out);
835 sci_close(dev);
836 if (ACPI_FAILURE(status)) {
837 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
838 return;
839 }
840
841 if (out[0] != TOS_SUCCESS)
842 return;
843
844 dev->usbsc_bat_level = out[2];
845 /* Flag as supported */
846 dev->usb_sleep_charge_supported = 1;
847}
848
849static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
850 u32 *mode)
851{
852 u32 result;
853
854 if (!sci_open(dev))
855 return -EIO;
856
857 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
858 sci_close(dev);
859 if (result == TOS_FAILURE)
860 pr_err("ACPI call to set USB S&C mode failed\n");
861 else if (result == TOS_NOT_SUPPORTED)
862 return -ENODEV;
863
864 return result == TOS_SUCCESS ? 0 : -EIO;
865}
866
867static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
868 u32 mode)
869{
870 u32 result;
871
872 if (!sci_open(dev))
873 return -EIO;
874
875 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
876 sci_close(dev);
877 if (result == TOS_FAILURE)
878 pr_err("ACPI call to set USB S&C mode failed\n");
879 else if (result == TOS_NOT_SUPPORTED)
880 return -ENODEV;
881
882 return result == TOS_SUCCESS ? 0 : -EIO;
883}
884
885static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
886 u32 *mode)
887{
888 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
889 u32 out[TCI_WORDS];
890 acpi_status status;
891
892 if (!sci_open(dev))
893 return -EIO;
894
895 in[5] = SCI_USB_CHARGE_BAT_LVL;
896 status = tci_raw(dev, in, out);
897 sci_close(dev);
898 if (ACPI_FAILURE(status)) {
899 pr_err("ACPI call to get USB S&C battery level failed\n");
900 return -EIO;
901 }
902
903 if (out[0] == TOS_NOT_SUPPORTED)
904 return -ENODEV;
905
906 if (out[0] != TOS_SUCCESS)
907 return -EIO;
908
909 *mode = out[2];
910
911 return 0;
912
913}
914
915static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
916 u32 mode)
917{
918 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
919 u32 out[TCI_WORDS];
920 acpi_status status;
921
922 if (!sci_open(dev))
923 return -EIO;
924
925 in[2] = mode;
926 in[5] = SCI_USB_CHARGE_BAT_LVL;
927 status = tci_raw(dev, in, out);
928 sci_close(dev);
929 if (ACPI_FAILURE(status)) {
930 pr_err("ACPI call to set USB S&C battery level failed\n");
931 return -EIO;
932 }
933
934 if (out[0] == TOS_NOT_SUPPORTED)
935 return -ENODEV;
936
937 return out[0] == TOS_SUCCESS ? 0 : -EIO;
938}
939
940static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
941 u32 *state)
942{
943 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
944 u32 out[TCI_WORDS];
945 acpi_status status;
946
947 if (!sci_open(dev))
948 return -EIO;
949
950 in[5] = SCI_USB_CHARGE_RAPID_DSP;
951 status = tci_raw(dev, in, out);
952 sci_close(dev);
953 if (ACPI_FAILURE(status)) {
954 pr_err("ACPI call to get USB Rapid Charge failed\n");
955 return -EIO;
956 }
957
958 if (out[0] == TOS_NOT_SUPPORTED)
959 return -ENODEV;
960
961 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
962 return -EIO;
963
964 *state = out[2];
965
966 return 0;
967}
968
969static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
970 u32 state)
971{
972 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
973 u32 out[TCI_WORDS];
974 acpi_status status;
975
976 if (!sci_open(dev))
977 return -EIO;
978
979 in[2] = state;
980 in[5] = SCI_USB_CHARGE_RAPID_DSP;
981 status = tci_raw(dev, in, out);
982 sci_close(dev);
983 if (ACPI_FAILURE(status)) {
984 pr_err("ACPI call to set USB Rapid Charge failed\n");
985 return -EIO;
986 }
987
988 if (out[0] == TOS_NOT_SUPPORTED)
989 return -ENODEV;
990
991 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
992}
993
994static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
995{
996 u32 result;
997
998 if (!sci_open(dev))
999 return -EIO;
1000
1001 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
1002 sci_close(dev);
1003 if (result == TOS_FAILURE)
1004 pr_err("ACPI call to get Sleep and Music failed\n");
1005 else if (result == TOS_NOT_SUPPORTED)
1006 return -ENODEV;
1007
1008 return result == TOS_SUCCESS ? 0 : -EIO;
1009}
1010
1011static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1012{
1013 u32 result;
1014
1015 if (!sci_open(dev))
1016 return -EIO;
1017
1018 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1019 sci_close(dev);
1020 if (result == TOS_FAILURE)
1021 pr_err("ACPI call to set Sleep and Music failed\n");
1022 else if (result == TOS_NOT_SUPPORTED)
1023 return -ENODEV;
1024
1025 return result == TOS_SUCCESS ? 0 : -EIO;
1026}
1027
1028/* Keyboard function keys */
1029static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1030{
1031 u32 result;
1032
1033 if (!sci_open(dev))
1034 return -EIO;
1035
1036 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1037 sci_close(dev);
1038 if (result == TOS_FAILURE)
1039 pr_err("ACPI call to get KBD function keys failed\n");
1040 else if (result == TOS_NOT_SUPPORTED)
1041 return -ENODEV;
1042
1043 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1044}
1045
1046static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1047{
1048 u32 result;
1049
1050 if (!sci_open(dev))
1051 return -EIO;
1052
1053 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1054 sci_close(dev);
1055 if (result == TOS_FAILURE)
1056 pr_err("ACPI call to set KBD function keys failed\n");
1057 else if (result == TOS_NOT_SUPPORTED)
1058 return -ENODEV;
1059
1060 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1061}
1062
1063/* Panel Power ON */
1064static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1065{
1066 u32 result;
1067
1068 if (!sci_open(dev))
1069 return -EIO;
1070
1071 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1072 sci_close(dev);
1073 if (result == TOS_FAILURE)
1074 pr_err("ACPI call to get Panel Power ON failed\n");
1075 else if (result == TOS_NOT_SUPPORTED)
1076 return -ENODEV;
1077
1078 return result == TOS_SUCCESS ? 0 : -EIO;
1079}
1080
1081static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1082{
1083 u32 result;
1084
1085 if (!sci_open(dev))
1086 return -EIO;
1087
1088 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1089 sci_close(dev);
1090 if (result == TOS_FAILURE)
1091 pr_err("ACPI call to set Panel Power ON failed\n");
1092 else if (result == TOS_NOT_SUPPORTED)
1093 return -ENODEV;
1094
1095 return result == TOS_SUCCESS ? 0 : -EIO;
1096}
1097
1098/* USB Three */
1099static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1100{
1101 u32 result;
1102
1103 if (!sci_open(dev))
1104 return -EIO;
1105
1106 result = sci_read(dev, SCI_USB_THREE, state);
1107 sci_close(dev);
1108 if (result == TOS_FAILURE)
1109 pr_err("ACPI call to get USB 3 failed\n");
1110 else if (result == TOS_NOT_SUPPORTED)
1111 return -ENODEV;
1112
1113 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1114}
1115
1116static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1117{
1118 u32 result;
1119
1120 if (!sci_open(dev))
1121 return -EIO;
1122
1123 result = sci_write(dev, SCI_USB_THREE, state);
1124 sci_close(dev);
1125 if (result == TOS_FAILURE)
1126 pr_err("ACPI call to set USB 3 failed\n");
1127 else if (result == TOS_NOT_SUPPORTED)
1128 return -ENODEV;
1129
1130 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1131}
1132
1133/* Hotkey Event type */
1134static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1135 u32 *type)
1136{
1137 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1138 u32 out[TCI_WORDS];
1139 acpi_status status;
1140
1141 status = tci_raw(dev, in, out);
1142 if (ACPI_FAILURE(status)) {
1143 pr_err("ACPI call to get System type failed\n");
1144 return -EIO;
1145 }
1146
1147 if (out[0] == TOS_NOT_SUPPORTED)
1148 return -ENODEV;
1149
1150 if (out[0] != TOS_SUCCESS)
1151 return -EIO;
1152
1153 *type = out[3];
1154
1155 return 0;
1156}
1157
1158/* Wireless status (RFKill, WLAN, BT, WWAN) */
1159static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1160{
1161 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1162 u32 out[TCI_WORDS];
1163 acpi_status status;
1164
1165 in[3] = HCI_WIRELESS_STATUS;
1166 status = tci_raw(dev, in, out);
1167
1168 if (ACPI_FAILURE(status)) {
1169 pr_err("ACPI call to get Wireless status failed\n");
1170 return -EIO;
1171 }
1172
1173 if (out[0] == TOS_NOT_SUPPORTED)
1174 return -ENODEV;
1175
1176 if (out[0] != TOS_SUCCESS)
1177 return -EIO;
1178
1179 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1180
1181 return 0;
1182}
1183
1184/* WWAN */
1185static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1186{
1187 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1188 u32 out[TCI_WORDS];
1189 acpi_status status;
1190
1191 dev->wwan_supported = 0;
1192
1193 /*
1194 * WWAN support can be queried by setting the in[3] value to
1195 * HCI_WIRELESS_WWAN (0x03).
1196 *
1197 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1198 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1199 *
1200 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1201 * or TOS_NOT_SUPPORTED (0x8000).
1202 */
1203 in[3] = HCI_WIRELESS_WWAN;
1204 status = tci_raw(dev, in, out);
1205 if (ACPI_FAILURE(status)) {
1206 pr_err("ACPI call to get WWAN status failed\n");
1207 return;
1208 }
1209
1210 if (out[0] != TOS_SUCCESS)
1211 return;
1212
1213 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1214}
1215
1216static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1217{
1218 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1219 u32 out[TCI_WORDS];
1220 acpi_status status;
1221
1222 in[3] = HCI_WIRELESS_WWAN_STATUS;
1223 status = tci_raw(dev, in, out);
1224 if (ACPI_FAILURE(status)) {
1225 pr_err("ACPI call to set WWAN status failed\n");
1226 return -EIO;
1227 }
1228
1229 if (out[0] == TOS_NOT_SUPPORTED)
1230 return -ENODEV;
1231
1232 if (out[0] != TOS_SUCCESS)
1233 return -EIO;
1234
1235 /*
1236 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1237 * (de)activate the device, but some others need the
1238 * HCI_WIRELESS_WWAN_POWER call as well.
1239 */
1240 in[3] = HCI_WIRELESS_WWAN_POWER;
1241 status = tci_raw(dev, in, out);
1242 if (ACPI_FAILURE(status)) {
1243 pr_err("ACPI call to set WWAN power failed\n");
1244 return -EIO;
1245 }
1246
1247 if (out[0] == TOS_NOT_SUPPORTED)
1248 return -ENODEV;
1249
1250 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1251}
1252
1253/* Cooling Method */
1254static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1255{
1256 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1257 u32 out[TCI_WORDS];
1258 acpi_status status;
1259
1260 dev->cooling_method_supported = 0;
1261 dev->max_cooling_method = 0;
1262
1263 status = tci_raw(dev, in, out);
1264 if (ACPI_FAILURE(status)) {
1265 pr_err("ACPI call to get Cooling Method failed\n");
1266 return;
1267 }
1268
1269 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1270 return;
1271
1272 dev->cooling_method_supported = 1;
1273 dev->max_cooling_method = out[3];
1274}
1275
1276static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1277{
1278 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1279
1280 if (result == TOS_FAILURE)
1281 pr_err("ACPI call to get Cooling Method failed\n");
1282
1283 if (result == TOS_NOT_SUPPORTED)
1284 return -ENODEV;
1285
1286 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1287}
1288
1289static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1290{
1291 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1292
1293 if (result == TOS_FAILURE)
1294 pr_err("ACPI call to set Cooling Method failed\n");
1295
1296 if (result == TOS_NOT_SUPPORTED)
1297 return -ENODEV;
1298
1299 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1300}
1301
1302/* Transflective Backlight */
1303static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1304{
1305 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1306
1307 if (result == TOS_FAILURE)
1308 pr_err("ACPI call to get Transflective Backlight failed\n");
1309 else if (result == TOS_NOT_SUPPORTED)
1310 return -ENODEV;
1311
1312 return result == TOS_SUCCESS ? 0 : -EIO;
1313}
1314
1315static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1316{
1317 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1318
1319 if (result == TOS_FAILURE)
1320 pr_err("ACPI call to set Transflective Backlight failed\n");
1321 else if (result == TOS_NOT_SUPPORTED)
1322 return -ENODEV;
1323
1324 return result == TOS_SUCCESS ? 0 : -EIO;
1325}
1326
1327static struct proc_dir_entry *toshiba_proc_dir;
1328
1329/* LCD Brightness */
1330static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1331{
1332 int brightness = 0;
1333 u32 result;
1334 u32 value;
1335
1336 if (dev->tr_backlight_supported) {
1337 int ret = get_tr_backlight_status(dev, &value);
1338
1339 if (ret)
1340 return ret;
1341 if (value)
1342 return 0;
1343 brightness++;
1344 }
1345
1346 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1347 if (result == TOS_FAILURE)
1348 pr_err("ACPI call to get LCD Brightness failed\n");
1349 else if (result == TOS_NOT_SUPPORTED)
1350 return -ENODEV;
1351
1352 return result == TOS_SUCCESS ?
1353 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1354 -EIO;
1355}
1356
1357static int get_lcd_brightness(struct backlight_device *bd)
1358{
1359 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1360
1361 return __get_lcd_brightness(dev);
1362}
1363
1364static int lcd_proc_show(struct seq_file *m, void *v)
1365{
1366 struct toshiba_acpi_dev *dev = m->private;
1367 int levels;
1368 int value;
1369
1370 if (!dev->backlight_dev)
1371 return -ENODEV;
1372
1373 levels = dev->backlight_dev->props.max_brightness + 1;
1374 value = get_lcd_brightness(dev->backlight_dev);
1375 if (value < 0) {
1376 pr_err("Error reading LCD brightness\n");
1377 return value;
1378 }
1379
1380 seq_printf(m, "brightness: %d\n", value);
1381 seq_printf(m, "brightness_levels: %d\n", levels);
1382
1383 return 0;
1384}
1385
1386static int lcd_proc_open(struct inode *inode, struct file *file)
1387{
1388 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1389}
1390
1391static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1392{
1393 u32 result;
1394
1395 if (dev->tr_backlight_supported) {
1396 int ret = set_tr_backlight_status(dev, !value);
1397
1398 if (ret)
1399 return ret;
1400 if (value)
1401 value--;
1402 }
1403
1404 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1405 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1406 if (result == TOS_FAILURE)
1407 pr_err("ACPI call to set LCD Brightness failed\n");
1408 else if (result == TOS_NOT_SUPPORTED)
1409 return -ENODEV;
1410
1411 return result == TOS_SUCCESS ? 0 : -EIO;
1412}
1413
1414static int set_lcd_status(struct backlight_device *bd)
1415{
1416 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1417
1418 return set_lcd_brightness(dev, bd->props.brightness);
1419}
1420
1421static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1422 size_t count, loff_t *pos)
1423{
1424 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1425 char cmd[42];
1426 size_t len;
1427 int levels;
1428 int value;
1429
1430 len = min(count, sizeof(cmd) - 1);
1431 if (copy_from_user(cmd, buf, len))
1432 return -EFAULT;
1433 cmd[len] = '\0';
1434
1435 levels = dev->backlight_dev->props.max_brightness + 1;
1436 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1437 value < 0 && value > levels)
1438 return -EINVAL;
1439
1440 if (set_lcd_brightness(dev, value))
1441 return -EIO;
1442
1443 return count;
1444}
1445
1446static const struct file_operations lcd_proc_fops = {
1447 .owner = THIS_MODULE,
1448 .open = lcd_proc_open,
1449 .read = seq_read,
1450 .llseek = seq_lseek,
1451 .release = single_release,
1452 .write = lcd_proc_write,
1453};
1454
1455/* Video-Out */
1456static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1457{
1458 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1459
1460 if (result == TOS_FAILURE)
1461 pr_err("ACPI call to get Video-Out failed\n");
1462 else if (result == TOS_NOT_SUPPORTED)
1463 return -ENODEV;
1464
1465 return result == TOS_SUCCESS ? 0 : -EIO;
1466}
1467
1468static int video_proc_show(struct seq_file *m, void *v)
1469{
1470 struct toshiba_acpi_dev *dev = m->private;
1471 int is_lcd, is_crt, is_tv;
1472 u32 value;
1473
1474 if (get_video_status(dev, &value))
1475 return -EIO;
1476
1477 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1478 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1479 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1480
1481 seq_printf(m, "lcd_out: %d\n", is_lcd);
1482 seq_printf(m, "crt_out: %d\n", is_crt);
1483 seq_printf(m, "tv_out: %d\n", is_tv);
1484
1485 return 0;
1486}
1487
1488static int video_proc_open(struct inode *inode, struct file *file)
1489{
1490 return single_open(file, video_proc_show, PDE_DATA(inode));
1491}
1492
1493static ssize_t video_proc_write(struct file *file, const char __user *buf,
1494 size_t count, loff_t *pos)
1495{
1496 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1497 char *buffer;
1498 char *cmd;
1499 int lcd_out, crt_out, tv_out;
1500 int remain = count;
1501 int value;
1502 int ret;
1503 u32 video_out;
1504
1505 cmd = kmalloc(count + 1, GFP_KERNEL);
1506 if (!cmd)
1507 return -ENOMEM;
1508 if (copy_from_user(cmd, buf, count)) {
1509 kfree(cmd);
1510 return -EFAULT;
1511 }
1512 cmd[count] = '\0';
1513
1514 buffer = cmd;
1515
1516 /*
1517 * Scan expression. Multiple expressions may be delimited with ;
1518 * NOTE: To keep scanning simple, invalid fields are ignored.
1519 */
1520 while (remain) {
1521 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1522 lcd_out = value & 1;
1523 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1524 crt_out = value & 1;
1525 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1526 tv_out = value & 1;
1527 /* Advance to one character past the next ; */
1528 do {
1529 ++buffer;
1530 --remain;
1531 } while (remain && *(buffer - 1) != ';');
1532 }
1533
1534 kfree(cmd);
1535
1536 lcd_out = crt_out = tv_out = -1;
1537 ret = get_video_status(dev, &video_out);
1538 if (!ret) {
1539 unsigned int new_video_out = video_out;
1540
1541 if (lcd_out != -1)
1542 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1543 if (crt_out != -1)
1544 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1545 if (tv_out != -1)
1546 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1547 /*
1548 * To avoid unnecessary video disruption, only write the new
1549 * video setting if something changed.
1550 */
1551 if (new_video_out != video_out)
1552 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1553 }
1554
1555 return ret ? -EIO : count;
1556}
1557
1558static const struct file_operations video_proc_fops = {
1559 .owner = THIS_MODULE,
1560 .open = video_proc_open,
1561 .read = seq_read,
1562 .llseek = seq_lseek,
1563 .release = single_release,
1564 .write = video_proc_write,
1565};
1566
1567/* Fan status */
1568static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1569{
1570 u32 result = hci_read(dev, HCI_FAN, status);
1571
1572 if (result == TOS_FAILURE)
1573 pr_err("ACPI call to get Fan status failed\n");
1574 else if (result == TOS_NOT_SUPPORTED)
1575 return -ENODEV;
1576
1577 return result == TOS_SUCCESS ? 0 : -EIO;
1578}
1579
1580static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1581{
1582 u32 result = hci_write(dev, HCI_FAN, status);
1583
1584 if (result == TOS_FAILURE)
1585 pr_err("ACPI call to set Fan status failed\n");
1586 else if (result == TOS_NOT_SUPPORTED)
1587 return -ENODEV;
1588
1589 return result == TOS_SUCCESS ? 0 : -EIO;
1590}
1591
1592static int fan_proc_show(struct seq_file *m, void *v)
1593{
1594 struct toshiba_acpi_dev *dev = m->private;
1595 u32 value;
1596
1597 if (get_fan_status(dev, &value))
1598 return -EIO;
1599
1600 seq_printf(m, "running: %d\n", (value > 0));
1601 seq_printf(m, "force_on: %d\n", dev->force_fan);
1602
1603 return 0;
1604}
1605
1606static int fan_proc_open(struct inode *inode, struct file *file)
1607{
1608 return single_open(file, fan_proc_show, PDE_DATA(inode));
1609}
1610
1611static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1612 size_t count, loff_t *pos)
1613{
1614 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1615 char cmd[42];
1616 size_t len;
1617 int value;
1618
1619 len = min(count, sizeof(cmd) - 1);
1620 if (copy_from_user(cmd, buf, len))
1621 return -EFAULT;
1622 cmd[len] = '\0';
1623
1624 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1625 value != 0 && value != 1)
1626 return -EINVAL;
1627
1628 if (set_fan_status(dev, value))
1629 return -EIO;
1630
1631 dev->force_fan = value;
1632
1633 return count;
1634}
1635
1636static const struct file_operations fan_proc_fops = {
1637 .owner = THIS_MODULE,
1638 .open = fan_proc_open,
1639 .read = seq_read,
1640 .llseek = seq_lseek,
1641 .release = single_release,
1642 .write = fan_proc_write,
1643};
1644
1645static int keys_proc_show(struct seq_file *m, void *v)
1646{
1647 struct toshiba_acpi_dev *dev = m->private;
1648
1649 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1650 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1651
1652 return 0;
1653}
1654
1655static int keys_proc_open(struct inode *inode, struct file *file)
1656{
1657 return single_open(file, keys_proc_show, PDE_DATA(inode));
1658}
1659
1660static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1661 size_t count, loff_t *pos)
1662{
1663 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1664 char cmd[42];
1665 size_t len;
1666 int value;
1667
1668 len = min(count, sizeof(cmd) - 1);
1669 if (copy_from_user(cmd, buf, len))
1670 return -EFAULT;
1671 cmd[len] = '\0';
1672
1673 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1674 dev->key_event_valid = 0;
1675 else
1676 return -EINVAL;
1677
1678 return count;
1679}
1680
1681static const struct file_operations keys_proc_fops = {
1682 .owner = THIS_MODULE,
1683 .open = keys_proc_open,
1684 .read = seq_read,
1685 .llseek = seq_lseek,
1686 .release = single_release,
1687 .write = keys_proc_write,
1688};
1689
1690static int version_proc_show(struct seq_file *m, void *v)
1691{
1692 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1693 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1694 return 0;
1695}
1696
1697static int version_proc_open(struct inode *inode, struct file *file)
1698{
1699 return single_open(file, version_proc_show, PDE_DATA(inode));
1700}
1701
1702static const struct file_operations version_proc_fops = {
1703 .owner = THIS_MODULE,
1704 .open = version_proc_open,
1705 .read = seq_read,
1706 .llseek = seq_lseek,
1707 .release = single_release,
1708};
1709
1710/*
1711 * Proc and module init
1712 */
1713
1714#define PROC_TOSHIBA "toshiba"
1715
1716static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1717{
1718 if (dev->backlight_dev)
1719 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1720 &lcd_proc_fops, dev);
1721 if (dev->video_supported)
1722 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1723 &video_proc_fops, dev);
1724 if (dev->fan_supported)
1725 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1726 &fan_proc_fops, dev);
1727 if (dev->hotkey_dev)
1728 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1729 &keys_proc_fops, dev);
1730 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1731 &version_proc_fops, dev);
1732}
1733
1734static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1735{
1736 if (dev->backlight_dev)
1737 remove_proc_entry("lcd", toshiba_proc_dir);
1738 if (dev->video_supported)
1739 remove_proc_entry("video", toshiba_proc_dir);
1740 if (dev->fan_supported)
1741 remove_proc_entry("fan", toshiba_proc_dir);
1742 if (dev->hotkey_dev)
1743 remove_proc_entry("keys", toshiba_proc_dir);
1744 remove_proc_entry("version", toshiba_proc_dir);
1745}
1746
1747static const struct backlight_ops toshiba_backlight_data = {
1748 .options = BL_CORE_SUSPENDRESUME,
1749 .get_brightness = get_lcd_brightness,
1750 .update_status = set_lcd_status,
1751};
1752
1753/* Keyboard backlight work */
1754static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1755
1756static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1757
1758/*
1759 * Sysfs files
1760 */
1761static ssize_t version_show(struct device *dev,
1762 struct device_attribute *attr, char *buf)
1763{
1764 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1765}
1766static DEVICE_ATTR_RO(version);
1767
1768static ssize_t fan_store(struct device *dev,
1769 struct device_attribute *attr,
1770 const char *buf, size_t count)
1771{
1772 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1773 int state;
1774 int ret;
1775
1776 ret = kstrtoint(buf, 0, &state);
1777 if (ret)
1778 return ret;
1779
1780 if (state != 0 && state != 1)
1781 return -EINVAL;
1782
1783 ret = set_fan_status(toshiba, state);
1784 if (ret)
1785 return ret;
1786
1787 return count;
1788}
1789
1790static ssize_t fan_show(struct device *dev,
1791 struct device_attribute *attr, char *buf)
1792{
1793 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1794 u32 value;
1795 int ret;
1796
1797 ret = get_fan_status(toshiba, &value);
1798 if (ret)
1799 return ret;
1800
1801 return sprintf(buf, "%d\n", value);
1802}
1803static DEVICE_ATTR_RW(fan);
1804
1805static ssize_t kbd_backlight_mode_store(struct device *dev,
1806 struct device_attribute *attr,
1807 const char *buf, size_t count)
1808{
1809 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1810 int mode;
1811 int ret;
1812
1813
1814 ret = kstrtoint(buf, 0, &mode);
1815 if (ret)
1816 return ret;
1817
1818 /* Check for supported modes depending on keyboard backlight type */
1819 if (toshiba->kbd_type == 1) {
1820 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1821 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1822 return -EINVAL;
1823 } else if (toshiba->kbd_type == 2) {
1824 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1825 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1826 mode != SCI_KBD_MODE_OFF)
1827 return -EINVAL;
1828 }
1829
1830 /*
1831 * Set the Keyboard Backlight Mode where:
1832 * Auto - KBD backlight turns off automatically in given time
1833 * FN-Z - KBD backlight "toggles" when hotkey pressed
1834 * ON - KBD backlight is always on
1835 * OFF - KBD backlight is always off
1836 */
1837
1838 /* Only make a change if the actual mode has changed */
1839 if (toshiba->kbd_mode != mode) {
1840 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1841 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1842
1843 /* OR the "base time" to the actual method format */
1844 if (toshiba->kbd_type == 1) {
1845 /* Type 1 requires the current mode */
1846 time |= toshiba->kbd_mode;
1847 } else if (toshiba->kbd_type == 2) {
1848 /* Type 2 requires the desired mode */
1849 time |= mode;
1850 }
1851
1852 ret = toshiba_kbd_illum_status_set(toshiba, time);
1853 if (ret)
1854 return ret;
1855
1856 toshiba->kbd_mode = mode;
1857
1858 /*
1859 * Some laptop models with the second generation backlit
1860 * keyboard (type 2) do not generate the keyboard backlight
1861 * changed event (0x92), and thus, the driver will never update
1862 * the sysfs entries.
1863 *
1864 * The event is generated right when changing the keyboard
1865 * backlight mode and the *notify function will set the
1866 * kbd_event_generated to true.
1867 *
1868 * In case the event is not generated, schedule the keyboard
1869 * backlight work to update the sysfs entries and emulate the
1870 * event via genetlink.
1871 */
1872 if (toshiba->kbd_type == 2 &&
1873 !toshiba_acpi->kbd_event_generated)
1874 schedule_work(&kbd_bl_work);
1875 }
1876
1877 return count;
1878}
1879
1880static ssize_t kbd_backlight_mode_show(struct device *dev,
1881 struct device_attribute *attr,
1882 char *buf)
1883{
1884 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1885 u32 time;
1886
1887 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1888 return -EIO;
1889
1890 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1891}
1892static DEVICE_ATTR_RW(kbd_backlight_mode);
1893
1894static ssize_t kbd_type_show(struct device *dev,
1895 struct device_attribute *attr, char *buf)
1896{
1897 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1898
1899 return sprintf(buf, "%d\n", toshiba->kbd_type);
1900}
1901static DEVICE_ATTR_RO(kbd_type);
1902
1903static ssize_t available_kbd_modes_show(struct device *dev,
1904 struct device_attribute *attr,
1905 char *buf)
1906{
1907 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1908
1909 if (toshiba->kbd_type == 1)
1910 return sprintf(buf, "0x%x 0x%x\n",
1911 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1912
1913 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1914 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1915}
1916static DEVICE_ATTR_RO(available_kbd_modes);
1917
1918static ssize_t kbd_backlight_timeout_store(struct device *dev,
1919 struct device_attribute *attr,
1920 const char *buf, size_t count)
1921{
1922 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1923 int time;
1924 int ret;
1925
1926 ret = kstrtoint(buf, 0, &time);
1927 if (ret)
1928 return ret;
1929
1930 /* Check for supported values depending on kbd_type */
1931 if (toshiba->kbd_type == 1) {
1932 if (time < 0 || time > 60)
1933 return -EINVAL;
1934 } else if (toshiba->kbd_type == 2) {
1935 if (time < 1 || time > 60)
1936 return -EINVAL;
1937 }
1938
1939 /* Set the Keyboard Backlight Timeout */
1940
1941 /* Only make a change if the actual timeout has changed */
1942 if (toshiba->kbd_time != time) {
1943 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1944 time = time << HCI_MISC_SHIFT;
1945 /* OR the "base time" to the actual method format */
1946 if (toshiba->kbd_type == 1)
1947 time |= SCI_KBD_MODE_FNZ;
1948 else if (toshiba->kbd_type == 2)
1949 time |= SCI_KBD_MODE_AUTO;
1950
1951 ret = toshiba_kbd_illum_status_set(toshiba, time);
1952 if (ret)
1953 return ret;
1954
1955 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1956 }
1957
1958 return count;
1959}
1960
1961static ssize_t kbd_backlight_timeout_show(struct device *dev,
1962 struct device_attribute *attr,
1963 char *buf)
1964{
1965 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1966 u32 time;
1967
1968 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1969 return -EIO;
1970
1971 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1972}
1973static DEVICE_ATTR_RW(kbd_backlight_timeout);
1974
1975static ssize_t touchpad_store(struct device *dev,
1976 struct device_attribute *attr,
1977 const char *buf, size_t count)
1978{
1979 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1980 int state;
1981 int ret;
1982
1983 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1984 ret = kstrtoint(buf, 0, &state);
1985 if (ret)
1986 return ret;
1987 if (state != 0 && state != 1)
1988 return -EINVAL;
1989
1990 ret = toshiba_touchpad_set(toshiba, state);
1991 if (ret)
1992 return ret;
1993
1994 return count;
1995}
1996
1997static ssize_t touchpad_show(struct device *dev,
1998 struct device_attribute *attr, char *buf)
1999{
2000 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2001 u32 state;
2002 int ret;
2003
2004 ret = toshiba_touchpad_get(toshiba, &state);
2005 if (ret < 0)
2006 return ret;
2007
2008 return sprintf(buf, "%i\n", state);
2009}
2010static DEVICE_ATTR_RW(touchpad);
2011
2012static ssize_t usb_sleep_charge_show(struct device *dev,
2013 struct device_attribute *attr, char *buf)
2014{
2015 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2016 u32 mode;
2017 int ret;
2018
2019 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2020 if (ret < 0)
2021 return ret;
2022
2023 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2024}
2025
2026static ssize_t usb_sleep_charge_store(struct device *dev,
2027 struct device_attribute *attr,
2028 const char *buf, size_t count)
2029{
2030 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2031 int state;
2032 u32 mode;
2033 int ret;
2034
2035 ret = kstrtoint(buf, 0, &state);
2036 if (ret)
2037 return ret;
2038 /*
2039 * Check for supported values, where:
2040 * 0 - Disabled
2041 * 1 - Alternate (Non USB conformant devices that require more power)
2042 * 2 - Auto (USB conformant devices)
2043 * 3 - Typical
2044 */
2045 if (state != 0 && state != 1 && state != 2 && state != 3)
2046 return -EINVAL;
2047
2048 /* Set the USB charging mode to internal value */
2049 mode = toshiba->usbsc_mode_base;
2050 if (state == 0)
2051 mode |= SCI_USB_CHARGE_DISABLED;
2052 else if (state == 1)
2053 mode |= SCI_USB_CHARGE_ALTERNATE;
2054 else if (state == 2)
2055 mode |= SCI_USB_CHARGE_AUTO;
2056 else if (state == 3)
2057 mode |= SCI_USB_CHARGE_TYPICAL;
2058
2059 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2060 if (ret)
2061 return ret;
2062
2063 return count;
2064}
2065static DEVICE_ATTR_RW(usb_sleep_charge);
2066
2067static ssize_t sleep_functions_on_battery_show(struct device *dev,
2068 struct device_attribute *attr,
2069 char *buf)
2070{
2071 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2072 int bat_lvl, status;
2073 u32 state;
2074 int ret;
2075 int tmp;
2076
2077 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2078 if (ret < 0)
2079 return ret;
2080
2081 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2082 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2083 status = (tmp == 0x4) ? 1 : 0;
2084 /* Determine the battery level set */
2085 bat_lvl = state >> HCI_MISC_SHIFT;
2086
2087 return sprintf(buf, "%d %d\n", status, bat_lvl);
2088}
2089
2090static ssize_t sleep_functions_on_battery_store(struct device *dev,
2091 struct device_attribute *attr,
2092 const char *buf, size_t count)
2093{
2094 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2095 u32 status;
2096 int value;
2097 int ret;
2098 int tmp;
2099
2100 ret = kstrtoint(buf, 0, &value);
2101 if (ret)
2102 return ret;
2103
2104 /*
2105 * Set the status of the function:
2106 * 0 - Disabled
2107 * 1-100 - Enabled
2108 */
2109 if (value < 0 || value > 100)
2110 return -EINVAL;
2111
2112 if (value == 0) {
2113 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2114 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2115 } else {
2116 tmp = value << HCI_MISC_SHIFT;
2117 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2118 }
2119 ret = toshiba_sleep_functions_status_set(toshiba, status);
2120 if (ret < 0)
2121 return ret;
2122
2123 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2124
2125 return count;
2126}
2127static DEVICE_ATTR_RW(sleep_functions_on_battery);
2128
2129static ssize_t usb_rapid_charge_show(struct device *dev,
2130 struct device_attribute *attr, char *buf)
2131{
2132 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2133 u32 state;
2134 int ret;
2135
2136 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2137 if (ret < 0)
2138 return ret;
2139
2140 return sprintf(buf, "%d\n", state);
2141}
2142
2143static ssize_t usb_rapid_charge_store(struct device *dev,
2144 struct device_attribute *attr,
2145 const char *buf, size_t count)
2146{
2147 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2148 int state;
2149 int ret;
2150
2151 ret = kstrtoint(buf, 0, &state);
2152 if (ret)
2153 return ret;
2154 if (state != 0 && state != 1)
2155 return -EINVAL;
2156
2157 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2158 if (ret)
2159 return ret;
2160
2161 return count;
2162}
2163static DEVICE_ATTR_RW(usb_rapid_charge);
2164
2165static ssize_t usb_sleep_music_show(struct device *dev,
2166 struct device_attribute *attr, char *buf)
2167{
2168 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2169 u32 state;
2170 int ret;
2171
2172 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2173 if (ret < 0)
2174 return ret;
2175
2176 return sprintf(buf, "%d\n", state);
2177}
2178
2179static ssize_t usb_sleep_music_store(struct device *dev,
2180 struct device_attribute *attr,
2181 const char *buf, size_t count)
2182{
2183 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2184 int state;
2185 int ret;
2186
2187 ret = kstrtoint(buf, 0, &state);
2188 if (ret)
2189 return ret;
2190 if (state != 0 && state != 1)
2191 return -EINVAL;
2192
2193 ret = toshiba_usb_sleep_music_set(toshiba, state);
2194 if (ret)
2195 return ret;
2196
2197 return count;
2198}
2199static DEVICE_ATTR_RW(usb_sleep_music);
2200
2201static ssize_t kbd_function_keys_show(struct device *dev,
2202 struct device_attribute *attr, char *buf)
2203{
2204 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2205 int mode;
2206 int ret;
2207
2208 ret = toshiba_function_keys_get(toshiba, &mode);
2209 if (ret < 0)
2210 return ret;
2211
2212 return sprintf(buf, "%d\n", mode);
2213}
2214
2215static ssize_t kbd_function_keys_store(struct device *dev,
2216 struct device_attribute *attr,
2217 const char *buf, size_t count)
2218{
2219 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2220 int mode;
2221 int ret;
2222
2223 ret = kstrtoint(buf, 0, &mode);
2224 if (ret)
2225 return ret;
2226 /*
2227 * Check for the function keys mode where:
2228 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2229 * 1 - Special functions (Opposite of the above setting)
2230 */
2231 if (mode != 0 && mode != 1)
2232 return -EINVAL;
2233
2234 ret = toshiba_function_keys_set(toshiba, mode);
2235 if (ret)
2236 return ret;
2237
2238 pr_info("Reboot for changes to KBD Function Keys to take effect");
2239
2240 return count;
2241}
2242static DEVICE_ATTR_RW(kbd_function_keys);
2243
2244static ssize_t panel_power_on_show(struct device *dev,
2245 struct device_attribute *attr, char *buf)
2246{
2247 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2248 u32 state;
2249 int ret;
2250
2251 ret = toshiba_panel_power_on_get(toshiba, &state);
2252 if (ret < 0)
2253 return ret;
2254
2255 return sprintf(buf, "%d\n", state);
2256}
2257
2258static ssize_t panel_power_on_store(struct device *dev,
2259 struct device_attribute *attr,
2260 const char *buf, size_t count)
2261{
2262 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2263 int state;
2264 int ret;
2265
2266 ret = kstrtoint(buf, 0, &state);
2267 if (ret)
2268 return ret;
2269 if (state != 0 && state != 1)
2270 return -EINVAL;
2271
2272 ret = toshiba_panel_power_on_set(toshiba, state);
2273 if (ret)
2274 return ret;
2275
2276 pr_info("Reboot for changes to Panel Power ON to take effect");
2277
2278 return count;
2279}
2280static DEVICE_ATTR_RW(panel_power_on);
2281
2282static ssize_t usb_three_show(struct device *dev,
2283 struct device_attribute *attr, char *buf)
2284{
2285 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2286 u32 state;
2287 int ret;
2288
2289 ret = toshiba_usb_three_get(toshiba, &state);
2290 if (ret < 0)
2291 return ret;
2292
2293 return sprintf(buf, "%d\n", state);
2294}
2295
2296static ssize_t usb_three_store(struct device *dev,
2297 struct device_attribute *attr,
2298 const char *buf, size_t count)
2299{
2300 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2301 int state;
2302 int ret;
2303
2304 ret = kstrtoint(buf, 0, &state);
2305 if (ret)
2306 return ret;
2307 /*
2308 * Check for USB 3 mode where:
2309 * 0 - Disabled (Acts like a USB 2 port, saving power)
2310 * 1 - Enabled
2311 */
2312 if (state != 0 && state != 1)
2313 return -EINVAL;
2314
2315 ret = toshiba_usb_three_set(toshiba, state);
2316 if (ret)
2317 return ret;
2318
2319 pr_info("Reboot for changes to USB 3 to take effect");
2320
2321 return count;
2322}
2323static DEVICE_ATTR_RW(usb_three);
2324
2325static ssize_t cooling_method_show(struct device *dev,
2326 struct device_attribute *attr, char *buf)
2327{
2328 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2329 int state;
2330 int ret;
2331
2332 ret = toshiba_cooling_method_get(toshiba, &state);
2333 if (ret < 0)
2334 return ret;
2335
2336 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2337}
2338
2339static ssize_t cooling_method_store(struct device *dev,
2340 struct device_attribute *attr,
2341 const char *buf, size_t count)
2342{
2343 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2344 int state;
2345 int ret;
2346
2347 ret = kstrtoint(buf, 0, &state);
2348 if (ret)
2349 return ret;
2350
2351 /*
2352 * Check for supported values
2353 * Depending on the laptop model, some only support these two:
2354 * 0 - Maximum Performance
2355 * 1 - Battery Optimized
2356 *
2357 * While some others support all three methods:
2358 * 0 - Maximum Performance
2359 * 1 - Performance
2360 * 2 - Battery Optimized
2361 */
2362 if (state < 0 || state > toshiba->max_cooling_method)
2363 return -EINVAL;
2364
2365 ret = toshiba_cooling_method_set(toshiba, state);
2366 if (ret)
2367 return ret;
2368
2369 return count;
2370}
2371static DEVICE_ATTR_RW(cooling_method);
2372
2373static struct attribute *toshiba_attributes[] = {
2374 &dev_attr_version.attr,
2375 &dev_attr_fan.attr,
2376 &dev_attr_kbd_backlight_mode.attr,
2377 &dev_attr_kbd_type.attr,
2378 &dev_attr_available_kbd_modes.attr,
2379 &dev_attr_kbd_backlight_timeout.attr,
2380 &dev_attr_touchpad.attr,
2381 &dev_attr_usb_sleep_charge.attr,
2382 &dev_attr_sleep_functions_on_battery.attr,
2383 &dev_attr_usb_rapid_charge.attr,
2384 &dev_attr_usb_sleep_music.attr,
2385 &dev_attr_kbd_function_keys.attr,
2386 &dev_attr_panel_power_on.attr,
2387 &dev_attr_usb_three.attr,
2388 &dev_attr_cooling_method.attr,
2389 NULL,
2390};
2391
2392static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2393 struct attribute *attr, int idx)
2394{
2395 struct device *dev = container_of(kobj, struct device, kobj);
2396 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2397 bool exists = true;
2398
2399 if (attr == &dev_attr_fan.attr)
2400 exists = (drv->fan_supported) ? true : false;
2401 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2402 exists = (drv->kbd_illum_supported) ? true : false;
2403 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2404 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2405 else if (attr == &dev_attr_touchpad.attr)
2406 exists = (drv->touchpad_supported) ? true : false;
2407 else if (attr == &dev_attr_usb_sleep_charge.attr)
2408 exists = (drv->usb_sleep_charge_supported) ? true : false;
2409 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2410 exists = (drv->usb_sleep_charge_supported) ? true : false;
2411 else if (attr == &dev_attr_usb_rapid_charge.attr)
2412 exists = (drv->usb_rapid_charge_supported) ? true : false;
2413 else if (attr == &dev_attr_usb_sleep_music.attr)
2414 exists = (drv->usb_sleep_music_supported) ? true : false;
2415 else if (attr == &dev_attr_kbd_function_keys.attr)
2416 exists = (drv->kbd_function_keys_supported) ? true : false;
2417 else if (attr == &dev_attr_panel_power_on.attr)
2418 exists = (drv->panel_power_on_supported) ? true : false;
2419 else if (attr == &dev_attr_usb_three.attr)
2420 exists = (drv->usb_three_supported) ? true : false;
2421 else if (attr == &dev_attr_cooling_method.attr)
2422 exists = (drv->cooling_method_supported) ? true : false;
2423
2424 return exists ? attr->mode : 0;
2425}
2426
2427static struct attribute_group toshiba_attr_group = {
2428 .is_visible = toshiba_sysfs_is_visible,
2429 .attrs = toshiba_attributes,
2430};
2431
2432static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2433{
2434 struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2435
2436 /* Update the sysfs entries */
2437 if (sysfs_update_group(&acpi_dev->dev.kobj,
2438 &toshiba_attr_group))
2439 pr_err("Unable to update sysfs entries\n");
2440
2441 /* Emulate the keyboard backlight event */
2442 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2443 dev_name(&acpi_dev->dev),
2444 0x92, 0);
2445}
2446
2447/*
2448 * IIO device
2449 */
2450
2451enum toshiba_iio_accel_chan {
2452 AXIS_X,
2453 AXIS_Y,
2454 AXIS_Z
2455};
2456
2457static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2458{
2459 u32 xyval, zval;
2460 int ret;
2461
2462 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2463 if (ret < 0)
2464 return ret;
2465
2466 switch (chan) {
2467 case AXIS_X:
2468 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2469 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2470 case AXIS_Y:
2471 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2472 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2473 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2474 case AXIS_Z:
2475 return zval & HCI_ACCEL_DIRECTION_MASK ?
2476 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2477 }
2478
2479 return ret;
2480}
2481
2482static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2483 struct iio_chan_spec const *chan,
2484 int *val, int *val2, long mask)
2485{
2486 int ret;
2487
2488 switch (mask) {
2489 case IIO_CHAN_INFO_RAW:
2490 ret = toshiba_iio_accel_get_axis(chan->channel);
2491 if (ret == -EIO || ret == -ENODEV)
2492 return ret;
2493
2494 *val = ret;
2495
2496 return IIO_VAL_INT;
2497 }
2498
2499 return -EINVAL;
2500}
2501
2502#define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2503 .type = IIO_ACCEL, \
2504 .modified = 1, \
2505 .channel = chan, \
2506 .channel2 = IIO_MOD_##axis, \
2507 .output = 1, \
2508 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2509}
2510
2511static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2512 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2513 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2514 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2515};
2516
2517static const struct iio_info toshiba_iio_accel_info = {
2518 .driver_module = THIS_MODULE,
2519 .read_raw = &toshiba_iio_accel_read_raw,
2520};
2521
2522/*
2523 * Misc device
2524 */
2525static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2526{
2527 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2528 regs->edx, regs->esi, regs->edi };
2529 u32 out[TCI_WORDS];
2530 acpi_status status;
2531
2532 status = tci_raw(toshiba_acpi, in, out);
2533 if (ACPI_FAILURE(status)) {
2534 pr_err("ACPI call to query SMM registers failed\n");
2535 return -EIO;
2536 }
2537
2538 /* Fillout the SMM struct with the TCI call results */
2539 regs->eax = out[0];
2540 regs->ebx = out[1];
2541 regs->ecx = out[2];
2542 regs->edx = out[3];
2543 regs->esi = out[4];
2544 regs->edi = out[5];
2545
2546 return 0;
2547}
2548
2549static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2550 unsigned long arg)
2551{
2552 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2553 SMMRegisters regs;
2554 int ret;
2555
2556 if (!argp)
2557 return -EINVAL;
2558
2559 switch (cmd) {
2560 case TOSH_SMM:
2561 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2562 return -EFAULT;
2563 ret = toshiba_acpi_smm_bridge(®s);
2564 if (ret)
2565 return ret;
2566 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2567 return -EFAULT;
2568 break;
2569 case TOSHIBA_ACPI_SCI:
2570 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2571 return -EFAULT;
2572 /* Ensure we are being called with a SCI_{GET, SET} register */
2573 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2574 return -EINVAL;
2575 if (!sci_open(toshiba_acpi))
2576 return -EIO;
2577 ret = toshiba_acpi_smm_bridge(®s);
2578 sci_close(toshiba_acpi);
2579 if (ret)
2580 return ret;
2581 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2582 return -EFAULT;
2583 break;
2584 default:
2585 return -EINVAL;
2586 }
2587
2588 return 0;
2589}
2590
2591static const struct file_operations toshiba_acpi_fops = {
2592 .owner = THIS_MODULE,
2593 .unlocked_ioctl = toshiba_acpi_ioctl,
2594 .llseek = noop_llseek,
2595};
2596
2597/*
2598 * WWAN RFKill handlers
2599 */
2600static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2601{
2602 struct toshiba_acpi_dev *dev = data;
2603 int ret;
2604
2605 ret = toshiba_wireless_status(dev);
2606 if (ret)
2607 return ret;
2608
2609 if (!dev->killswitch)
2610 return 0;
2611
2612 return toshiba_wwan_set(dev, !blocked);
2613}
2614
2615static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2616{
2617 struct toshiba_acpi_dev *dev = data;
2618
2619 if (toshiba_wireless_status(dev))
2620 return;
2621
2622 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2623}
2624
2625static const struct rfkill_ops wwan_rfk_ops = {
2626 .set_block = toshiba_acpi_wwan_set_block,
2627 .poll = toshiba_acpi_wwan_poll,
2628};
2629
2630static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2631{
2632 int ret = toshiba_wireless_status(dev);
2633
2634 if (ret)
2635 return ret;
2636
2637 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2638 &dev->acpi_dev->dev,
2639 RFKILL_TYPE_WWAN,
2640 &wwan_rfk_ops,
2641 dev);
2642 if (!dev->wwan_rfk) {
2643 pr_err("Unable to allocate WWAN rfkill device\n");
2644 return -ENOMEM;
2645 }
2646
2647 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2648
2649 ret = rfkill_register(dev->wwan_rfk);
2650 if (ret) {
2651 pr_err("Unable to register WWAN rfkill device\n");
2652 rfkill_destroy(dev->wwan_rfk);
2653 }
2654
2655 return ret;
2656}
2657
2658/*
2659 * Hotkeys
2660 */
2661static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2662{
2663 acpi_status status;
2664 u32 result;
2665
2666 status = acpi_evaluate_object(dev->acpi_dev->handle,
2667 "ENAB", NULL, NULL);
2668 if (ACPI_FAILURE(status))
2669 return -ENODEV;
2670
2671 /*
2672 * Enable the "Special Functions" mode only if they are
2673 * supported and if they are activated.
2674 */
2675 if (dev->kbd_function_keys_supported && dev->special_functions)
2676 result = hci_write(dev, HCI_HOTKEY_EVENT,
2677 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2678 else
2679 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2680
2681 if (result == TOS_FAILURE)
2682 return -EIO;
2683 else if (result == TOS_NOT_SUPPORTED)
2684 return -ENODEV;
2685
2686 return 0;
2687}
2688
2689static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2690 struct serio *port)
2691{
2692 if (str & I8042_STR_AUXDATA)
2693 return false;
2694
2695 if (unlikely(data == 0xe0))
2696 return false;
2697
2698 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2699 schedule_work(&toshiba_acpi->hotkey_work);
2700 return true;
2701 }
2702
2703 return false;
2704}
2705
2706static void toshiba_acpi_hotkey_work(struct work_struct *work)
2707{
2708 acpi_handle ec_handle = ec_get_handle();
2709 acpi_status status;
2710
2711 if (!ec_handle)
2712 return;
2713
2714 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2715 if (ACPI_FAILURE(status))
2716 pr_err("ACPI NTFY method execution failed\n");
2717}
2718
2719/*
2720 * Returns hotkey scancode, or < 0 on failure.
2721 */
2722static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2723{
2724 unsigned long long value;
2725 acpi_status status;
2726
2727 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2728 NULL, &value);
2729 if (ACPI_FAILURE(status)) {
2730 pr_err("ACPI INFO method execution failed\n");
2731 return -EIO;
2732 }
2733
2734 return value;
2735}
2736
2737static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2738 int scancode)
2739{
2740 if (scancode == 0x100)
2741 return;
2742
2743 /* Act on key press; ignore key release */
2744 if (scancode & 0x80)
2745 return;
2746
2747 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2748 pr_info("Unknown key %x\n", scancode);
2749}
2750
2751static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2752{
2753 if (dev->info_supported) {
2754 int scancode = toshiba_acpi_query_hotkey(dev);
2755
2756 if (scancode < 0) {
2757 pr_err("Failed to query hotkey event\n");
2758 } else if (scancode != 0) {
2759 toshiba_acpi_report_hotkey(dev, scancode);
2760 dev->key_event_valid = 1;
2761 dev->last_key_event = scancode;
2762 }
2763 } else if (dev->system_event_supported) {
2764 u32 result;
2765 u32 value;
2766 int retries = 3;
2767
2768 do {
2769 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2770 switch (result) {
2771 case TOS_SUCCESS:
2772 toshiba_acpi_report_hotkey(dev, (int)value);
2773 dev->key_event_valid = 1;
2774 dev->last_key_event = value;
2775 break;
2776 case TOS_NOT_SUPPORTED:
2777 /*
2778 * This is a workaround for an unresolved
2779 * issue on some machines where system events
2780 * sporadically become disabled.
2781 */
2782 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2783 if (result == TOS_SUCCESS)
2784 pr_notice("Re-enabled hotkeys\n");
2785 /* Fall through */
2786 default:
2787 retries--;
2788 break;
2789 }
2790 } while (retries && result != TOS_FIFO_EMPTY);
2791 }
2792}
2793
2794static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2795{
2796 const struct key_entry *keymap = toshiba_acpi_keymap;
2797 acpi_handle ec_handle;
2798 int error;
2799
2800 if (disable_hotkeys) {
2801 pr_info("Hotkeys disabled by module parameter\n");
2802 return 0;
2803 }
2804
2805 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2806 pr_info("WMI event detected, hotkeys will not be monitored\n");
2807 return 0;
2808 }
2809
2810 error = toshiba_acpi_enable_hotkeys(dev);
2811 if (error)
2812 return error;
2813
2814 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2815 pr_notice("Unable to query Hotkey Event Type\n");
2816
2817 dev->hotkey_dev = input_allocate_device();
2818 if (!dev->hotkey_dev)
2819 return -ENOMEM;
2820
2821 dev->hotkey_dev->name = "Toshiba input device";
2822 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2823 dev->hotkey_dev->id.bustype = BUS_HOST;
2824
2825 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2826 !dev->kbd_function_keys_supported)
2827 keymap = toshiba_acpi_keymap;
2828 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2829 dev->kbd_function_keys_supported)
2830 keymap = toshiba_acpi_alt_keymap;
2831 else
2832 pr_info("Unknown event type received %x\n",
2833 dev->hotkey_event_type);
2834 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2835 if (error)
2836 goto err_free_dev;
2837
2838 /*
2839 * For some machines the SCI responsible for providing hotkey
2840 * notification doesn't fire. We can trigger the notification
2841 * whenever the Fn key is pressed using the NTFY method, if
2842 * supported, so if it's present set up an i8042 key filter
2843 * for this purpose.
2844 */
2845 ec_handle = ec_get_handle();
2846 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2847 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2848
2849 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2850 if (error) {
2851 pr_err("Error installing key filter\n");
2852 goto err_free_keymap;
2853 }
2854
2855 dev->ntfy_supported = 1;
2856 }
2857
2858 /*
2859 * Determine hotkey query interface. Prefer using the INFO
2860 * method when it is available.
2861 */
2862 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2863 dev->info_supported = 1;
2864 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2865 dev->system_event_supported = 1;
2866
2867 if (!dev->info_supported && !dev->system_event_supported) {
2868 pr_warn("No hotkey query interface found\n");
2869 goto err_remove_filter;
2870 }
2871
2872 error = input_register_device(dev->hotkey_dev);
2873 if (error) {
2874 pr_info("Unable to register input device\n");
2875 goto err_remove_filter;
2876 }
2877
2878 return 0;
2879
2880 err_remove_filter:
2881 if (dev->ntfy_supported)
2882 i8042_remove_filter(toshiba_acpi_i8042_filter);
2883 err_free_keymap:
2884 sparse_keymap_free(dev->hotkey_dev);
2885 err_free_dev:
2886 input_free_device(dev->hotkey_dev);
2887 dev->hotkey_dev = NULL;
2888 return error;
2889}
2890
2891static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2892{
2893 struct backlight_properties props;
2894 int brightness;
2895 int ret;
2896
2897 /*
2898 * Some machines don't support the backlight methods at all, and
2899 * others support it read-only. Either of these is pretty useless,
2900 * so only register the backlight device if the backlight method
2901 * supports both reads and writes.
2902 */
2903 brightness = __get_lcd_brightness(dev);
2904 if (brightness < 0)
2905 return 0;
2906 /*
2907 * If transflective backlight is supported and the brightness is zero
2908 * (lowest brightness level), the set_lcd_brightness function will
2909 * activate the transflective backlight, making the LCD appear to be
2910 * turned off, simply increment the brightness level to avoid that.
2911 */
2912 if (dev->tr_backlight_supported && brightness == 0)
2913 brightness++;
2914 ret = set_lcd_brightness(dev, brightness);
2915 if (ret) {
2916 pr_debug("Backlight method is read-only, disabling backlight support\n");
2917 return 0;
2918 }
2919
2920 /*
2921 * Tell acpi-video-detect code to prefer vendor backlight on all
2922 * systems with transflective backlight and on dmi matched systems.
2923 */
2924 if (dev->tr_backlight_supported ||
2925 dmi_check_system(toshiba_vendor_backlight_dmi))
2926 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2927
2928 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2929 return 0;
2930
2931 memset(&props, 0, sizeof(props));
2932 props.type = BACKLIGHT_PLATFORM;
2933 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2934
2935 /* Adding an extra level and having 0 change to transflective mode */
2936 if (dev->tr_backlight_supported)
2937 props.max_brightness++;
2938
2939 dev->backlight_dev = backlight_device_register("toshiba",
2940 &dev->acpi_dev->dev,
2941 dev,
2942 &toshiba_backlight_data,
2943 &props);
2944 if (IS_ERR(dev->backlight_dev)) {
2945 ret = PTR_ERR(dev->backlight_dev);
2946 pr_err("Could not register toshiba backlight device\n");
2947 dev->backlight_dev = NULL;
2948 return ret;
2949 }
2950
2951 dev->backlight_dev->props.brightness = brightness;
2952 return 0;
2953}
2954
2955static void print_supported_features(struct toshiba_acpi_dev *dev)
2956{
2957 pr_info("Supported laptop features:");
2958
2959 if (dev->hotkey_dev)
2960 pr_cont(" hotkeys");
2961 if (dev->backlight_dev)
2962 pr_cont(" backlight");
2963 if (dev->video_supported)
2964 pr_cont(" video-out");
2965 if (dev->fan_supported)
2966 pr_cont(" fan");
2967 if (dev->tr_backlight_supported)
2968 pr_cont(" transflective-backlight");
2969 if (dev->illumination_supported)
2970 pr_cont(" illumination");
2971 if (dev->kbd_illum_supported)
2972 pr_cont(" keyboard-backlight");
2973 if (dev->touchpad_supported)
2974 pr_cont(" touchpad");
2975 if (dev->eco_supported)
2976 pr_cont(" eco-led");
2977 if (dev->accelerometer_supported)
2978 pr_cont(" accelerometer-axes");
2979 if (dev->usb_sleep_charge_supported)
2980 pr_cont(" usb-sleep-charge");
2981 if (dev->usb_rapid_charge_supported)
2982 pr_cont(" usb-rapid-charge");
2983 if (dev->usb_sleep_music_supported)
2984 pr_cont(" usb-sleep-music");
2985 if (dev->kbd_function_keys_supported)
2986 pr_cont(" special-function-keys");
2987 if (dev->panel_power_on_supported)
2988 pr_cont(" panel-power-on");
2989 if (dev->usb_three_supported)
2990 pr_cont(" usb3");
2991 if (dev->wwan_supported)
2992 pr_cont(" wwan");
2993 if (dev->cooling_method_supported)
2994 pr_cont(" cooling-method");
2995
2996 pr_cont("\n");
2997}
2998
2999static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
3000{
3001 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3002
3003 misc_deregister(&dev->miscdev);
3004
3005 remove_toshiba_proc_entries(dev);
3006
3007 if (dev->accelerometer_supported && dev->indio_dev) {
3008 iio_device_unregister(dev->indio_dev);
3009 iio_device_free(dev->indio_dev);
3010 }
3011
3012 if (dev->sysfs_created)
3013 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3014 &toshiba_attr_group);
3015
3016 if (dev->ntfy_supported) {
3017 i8042_remove_filter(toshiba_acpi_i8042_filter);
3018 cancel_work_sync(&dev->hotkey_work);
3019 }
3020
3021 if (dev->hotkey_dev) {
3022 input_unregister_device(dev->hotkey_dev);
3023 sparse_keymap_free(dev->hotkey_dev);
3024 }
3025
3026 backlight_device_unregister(dev->backlight_dev);
3027
3028 if (dev->illumination_led_registered)
3029 led_classdev_unregister(&dev->led_dev);
3030
3031 if (dev->kbd_led_registered)
3032 led_classdev_unregister(&dev->kbd_led);
3033
3034 if (dev->eco_led_registered)
3035 led_classdev_unregister(&dev->eco_led);
3036
3037 if (dev->wwan_rfk) {
3038 rfkill_unregister(dev->wwan_rfk);
3039 rfkill_destroy(dev->wwan_rfk);
3040 }
3041
3042 if (toshiba_acpi)
3043 toshiba_acpi = NULL;
3044
3045 kfree(dev);
3046
3047 return 0;
3048}
3049
3050static const char *find_hci_method(acpi_handle handle)
3051{
3052 if (acpi_has_method(handle, "GHCI"))
3053 return "GHCI";
3054
3055 if (acpi_has_method(handle, "SPFC"))
3056 return "SPFC";
3057
3058 return NULL;
3059}
3060
3061static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3062{
3063 struct toshiba_acpi_dev *dev;
3064 const char *hci_method;
3065 u32 dummy;
3066 int ret = 0;
3067
3068 if (toshiba_acpi)
3069 return -EBUSY;
3070
3071 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3072 TOSHIBA_ACPI_VERSION);
3073
3074 hci_method = find_hci_method(acpi_dev->handle);
3075 if (!hci_method) {
3076 pr_err("HCI interface not found\n");
3077 return -ENODEV;
3078 }
3079
3080 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3081 if (!dev)
3082 return -ENOMEM;
3083 dev->acpi_dev = acpi_dev;
3084 dev->method_hci = hci_method;
3085 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3086 dev->miscdev.name = "toshiba_acpi";
3087 dev->miscdev.fops = &toshiba_acpi_fops;
3088
3089 ret = misc_register(&dev->miscdev);
3090 if (ret) {
3091 pr_err("Failed to register miscdevice\n");
3092 kfree(dev);
3093 return ret;
3094 }
3095
3096 acpi_dev->driver_data = dev;
3097 dev_set_drvdata(&acpi_dev->dev, dev);
3098
3099 /* Query the BIOS for supported features */
3100
3101 /*
3102 * The "Special Functions" are always supported by the laptops
3103 * with the new keyboard layout, query for its presence to help
3104 * determine the keymap layout to use.
3105 */
3106 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3107 dev->kbd_function_keys_supported = !ret;
3108
3109 dev->hotkey_event_type = 0;
3110 if (toshiba_acpi_setup_keyboard(dev))
3111 pr_info("Unable to activate hotkeys\n");
3112
3113 /* Determine whether or not BIOS supports transflective backlight */
3114 ret = get_tr_backlight_status(dev, &dummy);
3115 dev->tr_backlight_supported = !ret;
3116
3117 ret = toshiba_acpi_setup_backlight(dev);
3118 if (ret)
3119 goto error;
3120
3121 toshiba_illumination_available(dev);
3122 if (dev->illumination_supported) {
3123 dev->led_dev.name = "toshiba::illumination";
3124 dev->led_dev.max_brightness = 1;
3125 dev->led_dev.brightness_set = toshiba_illumination_set;
3126 dev->led_dev.brightness_get = toshiba_illumination_get;
3127 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3128 dev->illumination_led_registered = true;
3129 }
3130
3131 toshiba_eco_mode_available(dev);
3132 if (dev->eco_supported) {
3133 dev->eco_led.name = "toshiba::eco_mode";
3134 dev->eco_led.max_brightness = 1;
3135 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3136 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3137 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3138 dev->eco_led_registered = true;
3139 }
3140
3141 toshiba_kbd_illum_available(dev);
3142 /*
3143 * Only register the LED if KBD illumination is supported
3144 * and the keyboard backlight operation mode is set to FN-Z
3145 */
3146 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
3147 dev->kbd_led.name = "toshiba::kbd_backlight";
3148 dev->kbd_led.max_brightness = 1;
3149 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3150 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3151 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3152 dev->kbd_led_registered = true;
3153 }
3154
3155 ret = toshiba_touchpad_get(dev, &dummy);
3156 dev->touchpad_supported = !ret;
3157
3158 toshiba_accelerometer_available(dev);
3159 if (dev->accelerometer_supported) {
3160 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3161 if (!dev->indio_dev) {
3162 pr_err("Unable to allocate iio device\n");
3163 goto iio_error;
3164 }
3165
3166 pr_info("Registering Toshiba accelerometer iio device\n");
3167
3168 dev->indio_dev->info = &toshiba_iio_accel_info;
3169 dev->indio_dev->name = "Toshiba accelerometer";
3170 dev->indio_dev->dev.parent = &acpi_dev->dev;
3171 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3172 dev->indio_dev->channels = toshiba_iio_accel_channels;
3173 dev->indio_dev->num_channels =
3174 ARRAY_SIZE(toshiba_iio_accel_channels);
3175
3176 ret = iio_device_register(dev->indio_dev);
3177 if (ret < 0) {
3178 pr_err("Unable to register iio device\n");
3179 iio_device_free(dev->indio_dev);
3180 }
3181 }
3182iio_error:
3183
3184 toshiba_usb_sleep_charge_available(dev);
3185
3186 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3187 dev->usb_rapid_charge_supported = !ret;
3188
3189 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3190 dev->usb_sleep_music_supported = !ret;
3191
3192 ret = toshiba_panel_power_on_get(dev, &dummy);
3193 dev->panel_power_on_supported = !ret;
3194
3195 ret = toshiba_usb_three_get(dev, &dummy);
3196 dev->usb_three_supported = !ret;
3197
3198 ret = get_video_status(dev, &dummy);
3199 dev->video_supported = !ret;
3200
3201 ret = get_fan_status(dev, &dummy);
3202 dev->fan_supported = !ret;
3203
3204 toshiba_wwan_available(dev);
3205 if (dev->wwan_supported)
3206 toshiba_acpi_setup_wwan_rfkill(dev);
3207
3208 toshiba_cooling_method_available(dev);
3209
3210 print_supported_features(dev);
3211
3212 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3213 &toshiba_attr_group);
3214 if (ret) {
3215 dev->sysfs_created = 0;
3216 goto error;
3217 }
3218 dev->sysfs_created = !ret;
3219
3220 create_toshiba_proc_entries(dev);
3221
3222 toshiba_acpi = dev;
3223
3224 return 0;
3225
3226error:
3227 toshiba_acpi_remove(acpi_dev);
3228 return ret;
3229}
3230
3231static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3232{
3233 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3234
3235 switch (event) {
3236 case 0x80: /* Hotkeys and some system events */
3237 /*
3238 * Machines with this WMI GUID aren't supported due to bugs in
3239 * their AML.
3240 *
3241 * Return silently to avoid triggering a netlink event.
3242 */
3243 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3244 return;
3245 toshiba_acpi_process_hotkeys(dev);
3246 break;
3247 case 0x81: /* Dock events */
3248 case 0x82:
3249 case 0x83:
3250 pr_info("Dock event received %x\n", event);
3251 break;
3252 case 0x88: /* Thermal events */
3253 pr_info("Thermal event received\n");
3254 break;
3255 case 0x8f: /* LID closed */
3256 case 0x90: /* LID is closed and Dock has been ejected */
3257 break;
3258 case 0x8c: /* SATA power events */
3259 case 0x8b:
3260 pr_info("SATA power event received %x\n", event);
3261 break;
3262 case 0x92: /* Keyboard backlight mode changed */
3263 toshiba_acpi->kbd_event_generated = true;
3264 /* Update sysfs entries */
3265 if (sysfs_update_group(&acpi_dev->dev.kobj,
3266 &toshiba_attr_group))
3267 pr_err("Unable to update sysfs entries\n");
3268 break;
3269 case 0x85: /* Unknown */
3270 case 0x8d: /* Unknown */
3271 case 0x8e: /* Unknown */
3272 case 0x94: /* Unknown */
3273 case 0x95: /* Unknown */
3274 default:
3275 pr_info("Unknown event received %x\n", event);
3276 break;
3277 }
3278
3279 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3280 dev_name(&acpi_dev->dev),
3281 event, (event == 0x80) ?
3282 dev->last_key_event : 0);
3283}
3284
3285#ifdef CONFIG_PM_SLEEP
3286static int toshiba_acpi_suspend(struct device *device)
3287{
3288 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3289
3290 if (dev->hotkey_dev) {
3291 u32 result;
3292
3293 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3294 if (result != TOS_SUCCESS)
3295 pr_info("Unable to disable hotkeys\n");
3296 }
3297
3298 return 0;
3299}
3300
3301static int toshiba_acpi_resume(struct device *device)
3302{
3303 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3304
3305 if (dev->hotkey_dev) {
3306 if (toshiba_acpi_enable_hotkeys(dev))
3307 pr_info("Unable to re-enable hotkeys\n");
3308 }
3309
3310 if (dev->wwan_rfk) {
3311 if (!toshiba_wireless_status(dev))
3312 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3313 }
3314
3315 return 0;
3316}
3317#endif
3318
3319static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3320 toshiba_acpi_suspend, toshiba_acpi_resume);
3321
3322static struct acpi_driver toshiba_acpi_driver = {
3323 .name = "Toshiba ACPI driver",
3324 .owner = THIS_MODULE,
3325 .ids = toshiba_device_ids,
3326 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3327 .ops = {
3328 .add = toshiba_acpi_add,
3329 .remove = toshiba_acpi_remove,
3330 .notify = toshiba_acpi_notify,
3331 },
3332 .drv.pm = &toshiba_acpi_pm,
3333};
3334
3335static int __init toshiba_acpi_init(void)
3336{
3337 int ret;
3338
3339 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3340 if (!toshiba_proc_dir) {
3341 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3342 return -ENODEV;
3343 }
3344
3345 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3346 if (ret) {
3347 pr_err("Failed to register ACPI driver: %d\n", ret);
3348 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3349 }
3350
3351 return ret;
3352}
3353
3354static void __exit toshiba_acpi_exit(void)
3355{
3356 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3357 if (toshiba_proc_dir)
3358 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3359}
3360
3361module_init(toshiba_acpi_init);
3362module_exit(toshiba_acpi_exit);
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/dmi.h>
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/moduleparam.h>
30#include <linux/init.h>
31#include <linux/types.h>
32#include <linux/proc_fs.h>
33#include <linux/seq_file.h>
34#include <linux/backlight.h>
35#include <linux/input.h>
36#include <linux/input/sparse-keymap.h>
37#include <linux/leds.h>
38#include <linux/slab.h>
39#include <linux/workqueue.h>
40#include <linux/i8042.h>
41#include <linux/acpi.h>
42#include <linux/uaccess.h>
43#include <linux/miscdevice.h>
44#include <linux/rfkill.h>
45#include <linux/hwmon.h>
46#include <linux/iio/iio.h>
47#include <linux/toshiba.h>
48#include <acpi/battery.h>
49#include <acpi/video.h>
50
51MODULE_AUTHOR("John Belmonte");
52MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
53MODULE_LICENSE("GPL");
54
55static int turn_on_panel_on_resume = -1;
56module_param(turn_on_panel_on_resume, int, 0644);
57MODULE_PARM_DESC(turn_on_panel_on_resume,
58 "Call HCI_PANEL_POWER_ON on resume (-1 = auto, 0 = no, 1 = yes");
59
60#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
61
62/* Scan code for Fn key on TOS1900 models */
63#define TOS1900_FN_SCAN 0x6e
64
65/* Toshiba ACPI method paths */
66#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
67
68/*
69 * The Toshiba configuration interface is composed of the HCI and the SCI,
70 * which are defined as follows:
71 *
72 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
73 * be uniform across all their models. Ideally we would just call
74 * dedicated ACPI methods instead of using this primitive interface.
75 * However the ACPI methods seem to be incomplete in some areas (for
76 * example they allow setting, but not reading, the LCD brightness value),
77 * so this is still useful.
78 *
79 * SCI stands for "System Configuration Interface" which aim is to
80 * conceal differences in hardware between different models.
81 */
82
83#define TCI_WORDS 6
84
85/* Operations */
86#define HCI_SET 0xff00
87#define HCI_GET 0xfe00
88#define SCI_OPEN 0xf100
89#define SCI_CLOSE 0xf200
90#define SCI_GET 0xf300
91#define SCI_SET 0xf400
92
93/* Return codes */
94#define TOS_SUCCESS 0x0000
95#define TOS_SUCCESS2 0x0001
96#define TOS_OPEN_CLOSE_OK 0x0044
97#define TOS_FAILURE 0x1000
98#define TOS_NOT_SUPPORTED 0x8000
99#define TOS_ALREADY_OPEN 0x8100
100#define TOS_NOT_OPENED 0x8200
101#define TOS_INPUT_DATA_ERROR 0x8300
102#define TOS_WRITE_PROTECTED 0x8400
103#define TOS_NOT_PRESENT 0x8600
104#define TOS_FIFO_EMPTY 0x8c00
105#define TOS_DATA_NOT_AVAILABLE 0x8d20
106#define TOS_NOT_INITIALIZED 0x8d50
107#define TOS_NOT_INSTALLED 0x8e00
108
109/* Registers */
110#define HCI_PANEL_POWER_ON 0x0002
111#define HCI_FAN 0x0004
112#define HCI_TR_BACKLIGHT 0x0005
113#define HCI_SYSTEM_EVENT 0x0016
114#define HCI_VIDEO_OUT 0x001c
115#define HCI_HOTKEY_EVENT 0x001e
116#define HCI_LCD_BRIGHTNESS 0x002a
117#define HCI_FAN_RPM 0x0045
118#define HCI_WIRELESS 0x0056
119#define HCI_ACCELEROMETER 0x006d
120#define HCI_COOLING_METHOD 0x007f
121#define HCI_KBD_ILLUMINATION 0x0095
122#define HCI_ECO_MODE 0x0097
123#define HCI_ACCELEROMETER2 0x00a6
124#define HCI_BATTERY_CHARGE_MODE 0x00ba
125#define HCI_SYSTEM_INFO 0xc000
126#define SCI_PANEL_POWER_ON 0x010d
127#define SCI_ILLUMINATION 0x014e
128#define SCI_USB_SLEEP_CHARGE 0x0150
129#define SCI_KBD_ILLUM_STATUS 0x015c
130#define SCI_USB_SLEEP_MUSIC 0x015e
131#define SCI_USB_THREE 0x0169
132#define SCI_TOUCHPAD 0x050e
133#define SCI_KBD_FUNCTION_KEYS 0x0522
134
135/* Field definitions */
136#define HCI_ACCEL_MASK 0x7fff
137#define HCI_ACCEL_DIRECTION_MASK 0x8000
138#define HCI_HOTKEY_DISABLE 0x0b
139#define HCI_HOTKEY_ENABLE 0x09
140#define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
141#define HCI_LCD_BRIGHTNESS_BITS 3
142#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
143#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
144#define HCI_MISC_SHIFT 0x10
145#define HCI_SYSTEM_TYPE1 0x10
146#define HCI_SYSTEM_TYPE2 0x11
147#define HCI_VIDEO_OUT_LCD 0x1
148#define HCI_VIDEO_OUT_CRT 0x2
149#define HCI_VIDEO_OUT_TV 0x4
150#define SCI_KBD_MODE_MASK 0x1f
151#define SCI_KBD_MODE_FNZ 0x1
152#define SCI_KBD_MODE_AUTO 0x2
153#define SCI_KBD_MODE_ON 0x8
154#define SCI_KBD_MODE_OFF 0x10
155#define SCI_KBD_TIME_MAX 0x3c001a
156#define HCI_WIRELESS_STATUS 0x1
157#define HCI_WIRELESS_WWAN 0x3
158#define HCI_WIRELESS_WWAN_STATUS 0x2000
159#define HCI_WIRELESS_WWAN_POWER 0x4000
160#define SCI_USB_CHARGE_MODE_MASK 0xff
161#define SCI_USB_CHARGE_DISABLED 0x00
162#define SCI_USB_CHARGE_ALTERNATE 0x09
163#define SCI_USB_CHARGE_TYPICAL 0x11
164#define SCI_USB_CHARGE_AUTO 0x21
165#define SCI_USB_CHARGE_BAT_MASK 0x7
166#define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
167#define SCI_USB_CHARGE_BAT_LVL_ON 0x4
168#define SCI_USB_CHARGE_BAT_LVL 0x0200
169#define SCI_USB_CHARGE_RAPID_DSP 0x0300
170
171struct toshiba_acpi_dev {
172 struct acpi_device *acpi_dev;
173 const char *method_hci;
174 struct input_dev *hotkey_dev;
175 struct work_struct hotkey_work;
176 struct backlight_device *backlight_dev;
177 struct led_classdev led_dev;
178 struct led_classdev kbd_led;
179 struct led_classdev eco_led;
180 struct miscdevice miscdev;
181 struct rfkill *wwan_rfk;
182 struct iio_dev *indio_dev;
183#if IS_ENABLED(CONFIG_HWMON)
184 struct device *hwmon_device;
185#endif
186
187 int force_fan;
188 int last_key_event;
189 int key_event_valid;
190 int kbd_type;
191 int kbd_mode;
192 int kbd_time;
193 int usbsc_bat_level;
194 int usbsc_mode_base;
195 int hotkey_event_type;
196 int max_cooling_method;
197
198 unsigned int illumination_supported:1;
199 unsigned int video_supported:1;
200 unsigned int fan_supported:1;
201 unsigned int fan_rpm_supported:1;
202 unsigned int system_event_supported:1;
203 unsigned int ntfy_supported:1;
204 unsigned int info_supported:1;
205 unsigned int tr_backlight_supported:1;
206 unsigned int kbd_illum_supported:1;
207 unsigned int touchpad_supported:1;
208 unsigned int eco_supported:1;
209 unsigned int accelerometer_supported:1;
210 unsigned int usb_sleep_charge_supported:1;
211 unsigned int usb_rapid_charge_supported:1;
212 unsigned int usb_sleep_music_supported:1;
213 unsigned int kbd_function_keys_supported:1;
214 unsigned int panel_power_on_supported:1;
215 unsigned int usb_three_supported:1;
216 unsigned int wwan_supported:1;
217 unsigned int cooling_method_supported:1;
218 unsigned int battery_charge_mode_supported:1;
219 unsigned int sysfs_created:1;
220 unsigned int special_functions;
221
222 bool kbd_event_generated;
223 bool killswitch;
224};
225
226static struct toshiba_acpi_dev *toshiba_acpi;
227
228static bool disable_hotkeys;
229module_param(disable_hotkeys, bool, 0444);
230MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
231
232static const struct acpi_device_id toshiba_device_ids[] = {
233 {"TOS6200", 0},
234 {"TOS6207", 0},
235 {"TOS6208", 0},
236 {"TOS1900", 0},
237 {"", 0},
238};
239MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
240
241static const struct key_entry toshiba_acpi_keymap[] = {
242 { KE_KEY, 0x9e, { KEY_RFKILL } },
243 { KE_KEY, 0x101, { KEY_MUTE } },
244 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
245 { KE_KEY, 0x103, { KEY_ZOOMIN } },
246 { KE_KEY, 0x10f, { KEY_TAB } },
247 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
248 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
249 { KE_KEY, 0x13b, { KEY_COFFEE } },
250 { KE_KEY, 0x13c, { KEY_BATTERY } },
251 { KE_KEY, 0x13d, { KEY_SLEEP } },
252 { KE_KEY, 0x13e, { KEY_SUSPEND } },
253 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
254 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
255 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
256 { KE_KEY, 0x142, { KEY_WLAN } },
257 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
258 { KE_KEY, 0x17f, { KEY_FN } },
259 { KE_KEY, 0xb05, { KEY_PROG2 } },
260 { KE_KEY, 0xb06, { KEY_WWW } },
261 { KE_KEY, 0xb07, { KEY_MAIL } },
262 { KE_KEY, 0xb30, { KEY_STOP } },
263 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
264 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
265 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
266 { KE_KEY, 0xb5a, { KEY_MEDIA } },
267 { KE_IGNORE, 0x0e00, { KEY_RESERVED } }, /* Wake from sleep */
268 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
269 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
270 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
271 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
272 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
273 { KE_END, 0 },
274};
275
276static const struct key_entry toshiba_acpi_alt_keymap[] = {
277 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
278 { KE_KEY, 0x103, { KEY_ZOOMIN } },
279 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
280 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
281 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
282 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
283 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
284 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
285 { KE_KEY, 0x157, { KEY_MUTE } },
286 { KE_KEY, 0x158, { KEY_WLAN } },
287 { KE_END, 0 },
288};
289
290/*
291 * Utility
292 */
293
294static inline void _set_bit(u32 *word, u32 mask, int value)
295{
296 *word = (*word & ~mask) | (mask * value);
297}
298
299/*
300 * ACPI interface wrappers
301 */
302
303static int write_acpi_int(const char *methodName, int val)
304{
305 acpi_status status;
306
307 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
308 return (status == AE_OK) ? 0 : -EIO;
309}
310
311/*
312 * Perform a raw configuration call. Here we don't care about input or output
313 * buffer format.
314 */
315static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
316 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
317{
318 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
319 struct acpi_object_list params;
320 struct acpi_buffer results;
321 acpi_status status;
322 int i;
323
324 params.count = TCI_WORDS;
325 params.pointer = in_objs;
326 for (i = 0; i < TCI_WORDS; ++i) {
327 in_objs[i].type = ACPI_TYPE_INTEGER;
328 in_objs[i].integer.value = in[i];
329 }
330
331 results.length = sizeof(out_objs);
332 results.pointer = out_objs;
333
334 status = acpi_evaluate_object(dev->acpi_dev->handle,
335 (char *)dev->method_hci, ¶ms,
336 &results);
337 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
338 for (i = 0; i < out_objs->package.count; ++i)
339 out[i] = out_objs->package.elements[i].integer.value;
340 }
341
342 return status;
343}
344
345/*
346 * Common hci tasks
347 *
348 * In addition to the ACPI status, the HCI system returns a result which
349 * may be useful (such as "not supported").
350 */
351
352static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
353{
354 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
355 u32 out[TCI_WORDS];
356 acpi_status status = tci_raw(dev, in, out);
357
358 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
359}
360
361static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
362{
363 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
364 u32 out[TCI_WORDS];
365 acpi_status status = tci_raw(dev, in, out);
366
367 if (ACPI_FAILURE(status))
368 return TOS_FAILURE;
369
370 *out1 = out[2];
371
372 return out[0];
373}
374
375/*
376 * Common sci tasks
377 */
378
379static int sci_open(struct toshiba_acpi_dev *dev)
380{
381 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
382 u32 out[TCI_WORDS];
383 acpi_status status = tci_raw(dev, in, out);
384
385 if (ACPI_FAILURE(status)) {
386 pr_err("ACPI call to open SCI failed\n");
387 return 0;
388 }
389
390 if (out[0] == TOS_OPEN_CLOSE_OK) {
391 return 1;
392 } else if (out[0] == TOS_ALREADY_OPEN) {
393 pr_info("Toshiba SCI already opened\n");
394 return 1;
395 } else if (out[0] == TOS_NOT_SUPPORTED) {
396 /*
397 * Some BIOSes do not have the SCI open/close functions
398 * implemented and return 0x8000 (Not Supported), failing to
399 * register some supported features.
400 *
401 * Simply return 1 if we hit those affected laptops to make the
402 * supported features work.
403 *
404 * In the case that some laptops really do not support the SCI,
405 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
406 * and thus, not registering support for the queried feature.
407 */
408 return 1;
409 } else if (out[0] == TOS_NOT_PRESENT) {
410 pr_info("Toshiba SCI is not present\n");
411 }
412
413 return 0;
414}
415
416static void sci_close(struct toshiba_acpi_dev *dev)
417{
418 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
419 u32 out[TCI_WORDS];
420 acpi_status status = tci_raw(dev, in, out);
421
422 if (ACPI_FAILURE(status)) {
423 pr_err("ACPI call to close SCI failed\n");
424 return;
425 }
426
427 if (out[0] == TOS_OPEN_CLOSE_OK)
428 return;
429 else if (out[0] == TOS_NOT_OPENED)
430 pr_info("Toshiba SCI not opened\n");
431 else if (out[0] == TOS_NOT_PRESENT)
432 pr_info("Toshiba SCI is not present\n");
433}
434
435static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
436{
437 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
438 u32 out[TCI_WORDS];
439 acpi_status status = tci_raw(dev, in, out);
440
441 if (ACPI_FAILURE(status))
442 return TOS_FAILURE;
443
444 *out1 = out[2];
445
446 return out[0];
447}
448
449static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
450{
451 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
452 u32 out[TCI_WORDS];
453 acpi_status status = tci_raw(dev, in, out);
454
455 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
456}
457
458/* Illumination support */
459static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
460{
461 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
462 u32 out[TCI_WORDS];
463 acpi_status status;
464
465 dev->illumination_supported = 0;
466
467 if (!sci_open(dev))
468 return;
469
470 status = tci_raw(dev, in, out);
471 sci_close(dev);
472 if (ACPI_FAILURE(status)) {
473 pr_err("ACPI call to query Illumination support failed\n");
474 return;
475 }
476
477 if (out[0] != TOS_SUCCESS)
478 return;
479
480 dev->illumination_supported = 1;
481}
482
483static void toshiba_illumination_set(struct led_classdev *cdev,
484 enum led_brightness brightness)
485{
486 struct toshiba_acpi_dev *dev = container_of(cdev,
487 struct toshiba_acpi_dev, led_dev);
488 u32 result;
489 u32 state;
490
491 /* First request : initialize communication. */
492 if (!sci_open(dev))
493 return;
494
495 /* Switch the illumination on/off */
496 state = brightness ? 1 : 0;
497 result = sci_write(dev, SCI_ILLUMINATION, state);
498 sci_close(dev);
499 if (result == TOS_FAILURE)
500 pr_err("ACPI call for illumination failed\n");
501}
502
503static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
504{
505 struct toshiba_acpi_dev *dev = container_of(cdev,
506 struct toshiba_acpi_dev, led_dev);
507 u32 result;
508 u32 state;
509
510 /* First request : initialize communication. */
511 if (!sci_open(dev))
512 return LED_OFF;
513
514 /* Check the illumination */
515 result = sci_read(dev, SCI_ILLUMINATION, &state);
516 sci_close(dev);
517 if (result == TOS_FAILURE) {
518 pr_err("ACPI call for illumination failed\n");
519 return LED_OFF;
520 } else if (result != TOS_SUCCESS) {
521 return LED_OFF;
522 }
523
524 return state ? LED_FULL : LED_OFF;
525}
526
527/* KBD Illumination */
528static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
529{
530 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
531 u32 out[TCI_WORDS];
532 acpi_status status;
533
534 dev->kbd_illum_supported = 0;
535 dev->kbd_event_generated = false;
536
537 if (!sci_open(dev))
538 return;
539
540 status = tci_raw(dev, in, out);
541 sci_close(dev);
542 if (ACPI_FAILURE(status)) {
543 pr_err("ACPI call to query kbd illumination support failed\n");
544 return;
545 }
546
547 if (out[0] != TOS_SUCCESS)
548 return;
549
550 /*
551 * Check for keyboard backlight timeout max value,
552 * previous kbd backlight implementation set this to
553 * 0x3c0003, and now the new implementation set this
554 * to 0x3c001a, use this to distinguish between them.
555 */
556 if (out[3] == SCI_KBD_TIME_MAX)
557 dev->kbd_type = 2;
558 else
559 dev->kbd_type = 1;
560 /* Get the current keyboard backlight mode */
561 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
562 /* Get the current time (1-60 seconds) */
563 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
564 /* Flag as supported */
565 dev->kbd_illum_supported = 1;
566}
567
568static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
569{
570 u32 result;
571
572 if (!sci_open(dev))
573 return -EIO;
574
575 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
576 sci_close(dev);
577 if (result == TOS_FAILURE)
578 pr_err("ACPI call to set KBD backlight status failed\n");
579 else if (result == TOS_NOT_SUPPORTED)
580 return -ENODEV;
581
582 return result == TOS_SUCCESS ? 0 : -EIO;
583}
584
585static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
586{
587 u32 result;
588
589 if (!sci_open(dev))
590 return -EIO;
591
592 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
593 sci_close(dev);
594 if (result == TOS_FAILURE)
595 pr_err("ACPI call to get KBD backlight status failed\n");
596 else if (result == TOS_NOT_SUPPORTED)
597 return -ENODEV;
598
599 return result == TOS_SUCCESS ? 0 : -EIO;
600}
601
602static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
603{
604 struct toshiba_acpi_dev *dev = container_of(cdev,
605 struct toshiba_acpi_dev, kbd_led);
606 u32 result;
607 u32 state;
608
609 /* Check the keyboard backlight state */
610 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
611 if (result == TOS_FAILURE) {
612 pr_err("ACPI call to get the keyboard backlight failed\n");
613 return LED_OFF;
614 } else if (result != TOS_SUCCESS) {
615 return LED_OFF;
616 }
617
618 return state ? LED_FULL : LED_OFF;
619}
620
621static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
622 enum led_brightness brightness)
623{
624 struct toshiba_acpi_dev *dev = container_of(cdev,
625 struct toshiba_acpi_dev, kbd_led);
626 u32 result;
627 u32 state;
628
629 /* Set the keyboard backlight state */
630 state = brightness ? 1 : 0;
631 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
632 if (result == TOS_FAILURE)
633 pr_err("ACPI call to set KBD Illumination mode failed\n");
634}
635
636/* TouchPad support */
637static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
638{
639 u32 result;
640
641 if (!sci_open(dev))
642 return -EIO;
643
644 result = sci_write(dev, SCI_TOUCHPAD, state);
645 sci_close(dev);
646 if (result == TOS_FAILURE)
647 pr_err("ACPI call to set the touchpad failed\n");
648 else if (result == TOS_NOT_SUPPORTED)
649 return -ENODEV;
650
651 return result == TOS_SUCCESS ? 0 : -EIO;
652}
653
654static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
655{
656 u32 result;
657
658 if (!sci_open(dev))
659 return -EIO;
660
661 result = sci_read(dev, SCI_TOUCHPAD, state);
662 sci_close(dev);
663 if (result == TOS_FAILURE)
664 pr_err("ACPI call to query the touchpad failed\n");
665 else if (result == TOS_NOT_SUPPORTED)
666 return -ENODEV;
667
668 return result == TOS_SUCCESS ? 0 : -EIO;
669}
670
671/* Eco Mode support */
672static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
673{
674 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
675 u32 out[TCI_WORDS];
676 acpi_status status;
677
678 dev->eco_supported = 0;
679
680 status = tci_raw(dev, in, out);
681 if (ACPI_FAILURE(status)) {
682 pr_err("ACPI call to get ECO led failed\n");
683 return;
684 }
685
686 if (out[0] == TOS_INPUT_DATA_ERROR || out[0] == TOS_NOT_SUPPORTED) {
687 /*
688 * If we receive 0x8300 (Input Data Error), it means that the
689 * LED device is present, but that we just screwed the input
690 * parameters.
691 *
692 * On some laptops 0x8000 (Not supported) is also returned in
693 * this case, so we need to allow for that as well.
694 *
695 * Let's query the status of the LED to see if we really have a
696 * success response, indicating the actual presense of the LED,
697 * bail out otherwise.
698 */
699 in[3] = 1;
700 status = tci_raw(dev, in, out);
701 if (ACPI_FAILURE(status)) {
702 pr_err("ACPI call to get ECO led failed\n");
703 return;
704 }
705
706 if (out[0] != TOS_SUCCESS)
707 return;
708
709 dev->eco_supported = 1;
710 }
711}
712
713static enum led_brightness
714toshiba_eco_mode_get_status(struct led_classdev *cdev)
715{
716 struct toshiba_acpi_dev *dev = container_of(cdev,
717 struct toshiba_acpi_dev, eco_led);
718 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
719 u32 out[TCI_WORDS];
720 acpi_status status;
721
722 status = tci_raw(dev, in, out);
723 if (ACPI_FAILURE(status)) {
724 pr_err("ACPI call to get ECO led failed\n");
725 return LED_OFF;
726 }
727
728 if (out[0] != TOS_SUCCESS)
729 return LED_OFF;
730
731 return out[2] ? LED_FULL : LED_OFF;
732}
733
734static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
735 enum led_brightness brightness)
736{
737 struct toshiba_acpi_dev *dev = container_of(cdev,
738 struct toshiba_acpi_dev, eco_led);
739 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
740 u32 out[TCI_WORDS];
741 acpi_status status;
742
743 /* Switch the Eco Mode led on/off */
744 in[2] = (brightness) ? 1 : 0;
745 status = tci_raw(dev, in, out);
746 if (ACPI_FAILURE(status))
747 pr_err("ACPI call to set ECO led failed\n");
748}
749
750/* Accelerometer support */
751static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
752{
753 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
754 u32 out[TCI_WORDS];
755 acpi_status status;
756
757 dev->accelerometer_supported = 0;
758
759 /*
760 * Check if the accelerometer call exists,
761 * this call also serves as initialization
762 */
763 status = tci_raw(dev, in, out);
764 if (ACPI_FAILURE(status)) {
765 pr_err("ACPI call to query the accelerometer failed\n");
766 return;
767 }
768
769 if (out[0] != TOS_SUCCESS)
770 return;
771
772 dev->accelerometer_supported = 1;
773}
774
775static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
776 u32 *xy, u32 *z)
777{
778 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
779 u32 out[TCI_WORDS];
780 acpi_status status;
781
782 /* Check the Accelerometer status */
783 status = tci_raw(dev, in, out);
784 if (ACPI_FAILURE(status)) {
785 pr_err("ACPI call to query the accelerometer failed\n");
786 return -EIO;
787 }
788
789 if (out[0] == TOS_NOT_SUPPORTED)
790 return -ENODEV;
791
792 if (out[0] != TOS_SUCCESS)
793 return -EIO;
794
795 *xy = out[2];
796 *z = out[4];
797
798 return 0;
799}
800
801/* Sleep (Charge and Music) utilities support */
802static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
803{
804 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
805 u32 out[TCI_WORDS];
806 acpi_status status;
807
808 dev->usb_sleep_charge_supported = 0;
809
810 if (!sci_open(dev))
811 return;
812
813 status = tci_raw(dev, in, out);
814 if (ACPI_FAILURE(status)) {
815 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
816 sci_close(dev);
817 return;
818 }
819
820 if (out[0] != TOS_SUCCESS) {
821 sci_close(dev);
822 return;
823 }
824
825 dev->usbsc_mode_base = out[4];
826
827 in[5] = SCI_USB_CHARGE_BAT_LVL;
828 status = tci_raw(dev, in, out);
829 sci_close(dev);
830 if (ACPI_FAILURE(status)) {
831 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
832 return;
833 }
834
835 if (out[0] != TOS_SUCCESS)
836 return;
837
838 dev->usbsc_bat_level = out[2];
839 /* Flag as supported */
840 dev->usb_sleep_charge_supported = 1;
841}
842
843static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
844 u32 *mode)
845{
846 u32 result;
847
848 if (!sci_open(dev))
849 return -EIO;
850
851 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
852 sci_close(dev);
853 if (result == TOS_FAILURE)
854 pr_err("ACPI call to set USB S&C mode failed\n");
855 else if (result == TOS_NOT_SUPPORTED)
856 return -ENODEV;
857
858 return result == TOS_SUCCESS ? 0 : -EIO;
859}
860
861static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
862 u32 mode)
863{
864 u32 result;
865
866 if (!sci_open(dev))
867 return -EIO;
868
869 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
870 sci_close(dev);
871 if (result == TOS_FAILURE)
872 pr_err("ACPI call to set USB S&C mode failed\n");
873 else if (result == TOS_NOT_SUPPORTED)
874 return -ENODEV;
875
876 return result == TOS_SUCCESS ? 0 : -EIO;
877}
878
879static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
880 u32 *mode)
881{
882 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
883 u32 out[TCI_WORDS];
884 acpi_status status;
885
886 if (!sci_open(dev))
887 return -EIO;
888
889 in[5] = SCI_USB_CHARGE_BAT_LVL;
890 status = tci_raw(dev, in, out);
891 sci_close(dev);
892 if (ACPI_FAILURE(status)) {
893 pr_err("ACPI call to get USB S&C battery level failed\n");
894 return -EIO;
895 }
896
897 if (out[0] == TOS_NOT_SUPPORTED)
898 return -ENODEV;
899
900 if (out[0] != TOS_SUCCESS)
901 return -EIO;
902
903 *mode = out[2];
904
905 return 0;
906
907}
908
909static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
910 u32 mode)
911{
912 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
913 u32 out[TCI_WORDS];
914 acpi_status status;
915
916 if (!sci_open(dev))
917 return -EIO;
918
919 in[2] = mode;
920 in[5] = SCI_USB_CHARGE_BAT_LVL;
921 status = tci_raw(dev, in, out);
922 sci_close(dev);
923 if (ACPI_FAILURE(status)) {
924 pr_err("ACPI call to set USB S&C battery level failed\n");
925 return -EIO;
926 }
927
928 if (out[0] == TOS_NOT_SUPPORTED)
929 return -ENODEV;
930
931 return out[0] == TOS_SUCCESS ? 0 : -EIO;
932}
933
934static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
935 u32 *state)
936{
937 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
938 u32 out[TCI_WORDS];
939 acpi_status status;
940
941 if (!sci_open(dev))
942 return -EIO;
943
944 in[5] = SCI_USB_CHARGE_RAPID_DSP;
945 status = tci_raw(dev, in, out);
946 sci_close(dev);
947 if (ACPI_FAILURE(status)) {
948 pr_err("ACPI call to get USB Rapid Charge failed\n");
949 return -EIO;
950 }
951
952 if (out[0] == TOS_NOT_SUPPORTED)
953 return -ENODEV;
954
955 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
956 return -EIO;
957
958 *state = out[2];
959
960 return 0;
961}
962
963static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
964 u32 state)
965{
966 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
967 u32 out[TCI_WORDS];
968 acpi_status status;
969
970 if (!sci_open(dev))
971 return -EIO;
972
973 in[2] = state;
974 in[5] = SCI_USB_CHARGE_RAPID_DSP;
975 status = tci_raw(dev, in, out);
976 sci_close(dev);
977 if (ACPI_FAILURE(status)) {
978 pr_err("ACPI call to set USB Rapid Charge failed\n");
979 return -EIO;
980 }
981
982 if (out[0] == TOS_NOT_SUPPORTED)
983 return -ENODEV;
984
985 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
986}
987
988static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
989{
990 u32 result;
991
992 if (!sci_open(dev))
993 return -EIO;
994
995 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
996 sci_close(dev);
997 if (result == TOS_FAILURE)
998 pr_err("ACPI call to get Sleep and Music failed\n");
999 else if (result == TOS_NOT_SUPPORTED)
1000 return -ENODEV;
1001
1002 return result == TOS_SUCCESS ? 0 : -EIO;
1003}
1004
1005static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1006{
1007 u32 result;
1008
1009 if (!sci_open(dev))
1010 return -EIO;
1011
1012 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1013 sci_close(dev);
1014 if (result == TOS_FAILURE)
1015 pr_err("ACPI call to set Sleep and Music failed\n");
1016 else if (result == TOS_NOT_SUPPORTED)
1017 return -ENODEV;
1018
1019 return result == TOS_SUCCESS ? 0 : -EIO;
1020}
1021
1022/* Keyboard function keys */
1023static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1024{
1025 u32 result;
1026
1027 if (!sci_open(dev))
1028 return -EIO;
1029
1030 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1031 sci_close(dev);
1032 if (result == TOS_FAILURE)
1033 pr_err("ACPI call to get KBD function keys failed\n");
1034 else if (result == TOS_NOT_SUPPORTED)
1035 return -ENODEV;
1036
1037 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1038}
1039
1040static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1041{
1042 u32 result;
1043
1044 if (!sci_open(dev))
1045 return -EIO;
1046
1047 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1048 sci_close(dev);
1049 if (result == TOS_FAILURE)
1050 pr_err("ACPI call to set KBD function keys failed\n");
1051 else if (result == TOS_NOT_SUPPORTED)
1052 return -ENODEV;
1053
1054 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1055}
1056
1057/* Panel Power ON */
1058static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1059{
1060 u32 result;
1061
1062 if (!sci_open(dev))
1063 return -EIO;
1064
1065 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1066 sci_close(dev);
1067 if (result == TOS_FAILURE)
1068 pr_err("ACPI call to get Panel Power ON failed\n");
1069 else if (result == TOS_NOT_SUPPORTED)
1070 return -ENODEV;
1071
1072 return result == TOS_SUCCESS ? 0 : -EIO;
1073}
1074
1075static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1076{
1077 u32 result;
1078
1079 if (!sci_open(dev))
1080 return -EIO;
1081
1082 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1083 sci_close(dev);
1084 if (result == TOS_FAILURE)
1085 pr_err("ACPI call to set Panel Power ON failed\n");
1086 else if (result == TOS_NOT_SUPPORTED)
1087 return -ENODEV;
1088
1089 return result == TOS_SUCCESS ? 0 : -EIO;
1090}
1091
1092/* USB Three */
1093static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1094{
1095 u32 result;
1096
1097 if (!sci_open(dev))
1098 return -EIO;
1099
1100 result = sci_read(dev, SCI_USB_THREE, state);
1101 sci_close(dev);
1102 if (result == TOS_FAILURE)
1103 pr_err("ACPI call to get USB 3 failed\n");
1104 else if (result == TOS_NOT_SUPPORTED)
1105 return -ENODEV;
1106
1107 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1108}
1109
1110static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1111{
1112 u32 result;
1113
1114 if (!sci_open(dev))
1115 return -EIO;
1116
1117 result = sci_write(dev, SCI_USB_THREE, state);
1118 sci_close(dev);
1119 if (result == TOS_FAILURE)
1120 pr_err("ACPI call to set USB 3 failed\n");
1121 else if (result == TOS_NOT_SUPPORTED)
1122 return -ENODEV;
1123
1124 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1125}
1126
1127/* Hotkey Event type */
1128static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1129 u32 *type)
1130{
1131 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1132 u32 out[TCI_WORDS];
1133 acpi_status status;
1134
1135 status = tci_raw(dev, in, out);
1136 if (ACPI_FAILURE(status)) {
1137 pr_err("ACPI call to get System type failed\n");
1138 return -EIO;
1139 }
1140
1141 if (out[0] == TOS_NOT_SUPPORTED)
1142 return -ENODEV;
1143
1144 if (out[0] != TOS_SUCCESS)
1145 return -EIO;
1146
1147 *type = out[3];
1148
1149 return 0;
1150}
1151
1152/* Wireless status (RFKill, WLAN, BT, WWAN) */
1153static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1154{
1155 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1156 u32 out[TCI_WORDS];
1157 acpi_status status;
1158
1159 in[3] = HCI_WIRELESS_STATUS;
1160 status = tci_raw(dev, in, out);
1161
1162 if (ACPI_FAILURE(status)) {
1163 pr_err("ACPI call to get Wireless status failed\n");
1164 return -EIO;
1165 }
1166
1167 if (out[0] == TOS_NOT_SUPPORTED)
1168 return -ENODEV;
1169
1170 if (out[0] != TOS_SUCCESS)
1171 return -EIO;
1172
1173 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1174
1175 return 0;
1176}
1177
1178/* WWAN */
1179static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1180{
1181 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1182 u32 out[TCI_WORDS];
1183 acpi_status status;
1184
1185 dev->wwan_supported = 0;
1186
1187 /*
1188 * WWAN support can be queried by setting the in[3] value to
1189 * HCI_WIRELESS_WWAN (0x03).
1190 *
1191 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1192 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1193 *
1194 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1195 * or TOS_NOT_SUPPORTED (0x8000).
1196 */
1197 in[3] = HCI_WIRELESS_WWAN;
1198 status = tci_raw(dev, in, out);
1199 if (ACPI_FAILURE(status)) {
1200 pr_err("ACPI call to get WWAN status failed\n");
1201 return;
1202 }
1203
1204 if (out[0] != TOS_SUCCESS)
1205 return;
1206
1207 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1208}
1209
1210static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1211{
1212 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1213 u32 out[TCI_WORDS];
1214 acpi_status status;
1215
1216 in[3] = HCI_WIRELESS_WWAN_STATUS;
1217 status = tci_raw(dev, in, out);
1218 if (ACPI_FAILURE(status)) {
1219 pr_err("ACPI call to set WWAN status failed\n");
1220 return -EIO;
1221 }
1222
1223 if (out[0] == TOS_NOT_SUPPORTED)
1224 return -ENODEV;
1225
1226 if (out[0] != TOS_SUCCESS)
1227 return -EIO;
1228
1229 /*
1230 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1231 * (de)activate the device, but some others need the
1232 * HCI_WIRELESS_WWAN_POWER call as well.
1233 */
1234 in[3] = HCI_WIRELESS_WWAN_POWER;
1235 status = tci_raw(dev, in, out);
1236 if (ACPI_FAILURE(status)) {
1237 pr_err("ACPI call to set WWAN power failed\n");
1238 return -EIO;
1239 }
1240
1241 if (out[0] == TOS_NOT_SUPPORTED)
1242 return -ENODEV;
1243
1244 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1245}
1246
1247/* Cooling Method */
1248static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1249{
1250 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1251 u32 out[TCI_WORDS];
1252 acpi_status status;
1253
1254 dev->cooling_method_supported = 0;
1255 dev->max_cooling_method = 0;
1256
1257 status = tci_raw(dev, in, out);
1258 if (ACPI_FAILURE(status)) {
1259 pr_err("ACPI call to get Cooling Method failed\n");
1260 return;
1261 }
1262
1263 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1264 return;
1265
1266 dev->cooling_method_supported = 1;
1267 dev->max_cooling_method = out[3];
1268}
1269
1270static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1271{
1272 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1273
1274 if (result == TOS_FAILURE)
1275 pr_err("ACPI call to get Cooling Method failed\n");
1276
1277 if (result == TOS_NOT_SUPPORTED)
1278 return -ENODEV;
1279
1280 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1281}
1282
1283static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1284{
1285 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1286
1287 if (result == TOS_FAILURE)
1288 pr_err("ACPI call to set Cooling Method failed\n");
1289
1290 if (result == TOS_NOT_SUPPORTED)
1291 return -ENODEV;
1292
1293 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1294}
1295
1296/* Battery charge control */
1297static void toshiba_battery_charge_mode_available(struct toshiba_acpi_dev *dev)
1298{
1299 u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0 };
1300 u32 out[TCI_WORDS];
1301 acpi_status status;
1302
1303 dev->battery_charge_mode_supported = 0;
1304
1305 status = tci_raw(dev, in, out);
1306 if (ACPI_FAILURE(status)) {
1307 pr_err("ACPI call to get Battery Charge Mode failed\n");
1308 return;
1309 }
1310
1311 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1312 return;
1313
1314 dev->battery_charge_mode_supported = 1;
1315}
1316
1317static int toshiba_battery_charge_mode_get(struct toshiba_acpi_dev *dev, u32 *state)
1318{
1319 u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0x1 };
1320 u32 out[TCI_WORDS];
1321 int retries = 3;
1322
1323 do {
1324 acpi_status status = tci_raw(dev, in, out);
1325
1326 if (ACPI_FAILURE(status))
1327 pr_err("ACPI call to get Battery Charge Mode failed\n");
1328 switch (out[0]) {
1329 case TOS_SUCCESS:
1330 case TOS_SUCCESS2:
1331 *state = out[2];
1332 return 0;
1333 case TOS_NOT_SUPPORTED:
1334 return -ENODEV;
1335 case TOS_DATA_NOT_AVAILABLE:
1336 retries--;
1337 break;
1338 default:
1339 return -EIO;
1340 }
1341 } while (retries);
1342
1343 return -EIO;
1344}
1345
1346static int toshiba_battery_charge_mode_set(struct toshiba_acpi_dev *dev, u32 state)
1347{
1348 u32 result = hci_write(dev, HCI_BATTERY_CHARGE_MODE, state);
1349
1350 if (result == TOS_FAILURE)
1351 pr_err("ACPI call to set Battery Charge Mode failed\n");
1352
1353 if (result == TOS_NOT_SUPPORTED)
1354 return -ENODEV;
1355
1356 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1357}
1358
1359/* Transflective Backlight */
1360static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1361{
1362 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1363
1364 if (result == TOS_FAILURE)
1365 pr_err("ACPI call to get Transflective Backlight failed\n");
1366 else if (result == TOS_NOT_SUPPORTED)
1367 return -ENODEV;
1368
1369 return result == TOS_SUCCESS ? 0 : -EIO;
1370}
1371
1372static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1373{
1374 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1375
1376 if (result == TOS_FAILURE)
1377 pr_err("ACPI call to set Transflective Backlight failed\n");
1378 else if (result == TOS_NOT_SUPPORTED)
1379 return -ENODEV;
1380
1381 return result == TOS_SUCCESS ? 0 : -EIO;
1382}
1383
1384static struct proc_dir_entry *toshiba_proc_dir;
1385
1386/* LCD Brightness */
1387static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1388{
1389 int brightness = 0;
1390 u32 result;
1391 u32 value;
1392
1393 if (dev->tr_backlight_supported) {
1394 int ret = get_tr_backlight_status(dev, &value);
1395
1396 if (ret)
1397 return ret;
1398 if (value)
1399 return 0;
1400 brightness++;
1401 }
1402
1403 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1404 if (result == TOS_FAILURE)
1405 pr_err("ACPI call to get LCD Brightness failed\n");
1406 else if (result == TOS_NOT_SUPPORTED)
1407 return -ENODEV;
1408
1409 return result == TOS_SUCCESS ?
1410 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1411 -EIO;
1412}
1413
1414static int get_lcd_brightness(struct backlight_device *bd)
1415{
1416 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1417
1418 return __get_lcd_brightness(dev);
1419}
1420
1421static int lcd_proc_show(struct seq_file *m, void *v)
1422{
1423 struct toshiba_acpi_dev *dev = m->private;
1424 int levels;
1425 int value;
1426
1427 if (!dev->backlight_dev)
1428 return -ENODEV;
1429
1430 levels = dev->backlight_dev->props.max_brightness + 1;
1431 value = get_lcd_brightness(dev->backlight_dev);
1432 if (value < 0) {
1433 pr_err("Error reading LCD brightness\n");
1434 return value;
1435 }
1436
1437 seq_printf(m, "brightness: %d\n", value);
1438 seq_printf(m, "brightness_levels: %d\n", levels);
1439
1440 return 0;
1441}
1442
1443static int lcd_proc_open(struct inode *inode, struct file *file)
1444{
1445 return single_open(file, lcd_proc_show, pde_data(inode));
1446}
1447
1448static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1449{
1450 u32 result;
1451
1452 if (dev->tr_backlight_supported) {
1453 int ret = set_tr_backlight_status(dev, !value);
1454
1455 if (ret)
1456 return ret;
1457 if (value)
1458 value--;
1459 }
1460
1461 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1462 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1463 if (result == TOS_FAILURE)
1464 pr_err("ACPI call to set LCD Brightness failed\n");
1465 else if (result == TOS_NOT_SUPPORTED)
1466 return -ENODEV;
1467
1468 return result == TOS_SUCCESS ? 0 : -EIO;
1469}
1470
1471static int set_lcd_status(struct backlight_device *bd)
1472{
1473 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1474
1475 return set_lcd_brightness(dev, bd->props.brightness);
1476}
1477
1478static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1479 size_t count, loff_t *pos)
1480{
1481 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1482 char cmd[42];
1483 size_t len;
1484 int levels;
1485 int value;
1486
1487 len = min(count, sizeof(cmd) - 1);
1488 if (copy_from_user(cmd, buf, len))
1489 return -EFAULT;
1490 cmd[len] = '\0';
1491
1492 levels = dev->backlight_dev->props.max_brightness + 1;
1493 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1494 value < 0 && value > levels)
1495 return -EINVAL;
1496
1497 if (set_lcd_brightness(dev, value))
1498 return -EIO;
1499
1500 return count;
1501}
1502
1503static const struct proc_ops lcd_proc_ops = {
1504 .proc_open = lcd_proc_open,
1505 .proc_read = seq_read,
1506 .proc_lseek = seq_lseek,
1507 .proc_release = single_release,
1508 .proc_write = lcd_proc_write,
1509};
1510
1511/* Video-Out */
1512static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1513{
1514 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1515
1516 if (result == TOS_FAILURE)
1517 pr_err("ACPI call to get Video-Out failed\n");
1518 else if (result == TOS_NOT_SUPPORTED)
1519 return -ENODEV;
1520
1521 return result == TOS_SUCCESS ? 0 : -EIO;
1522}
1523
1524static int video_proc_show(struct seq_file *m, void *v)
1525{
1526 struct toshiba_acpi_dev *dev = m->private;
1527 int is_lcd, is_crt, is_tv;
1528 u32 value;
1529
1530 if (get_video_status(dev, &value))
1531 return -EIO;
1532
1533 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1534 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1535 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1536
1537 seq_printf(m, "lcd_out: %d\n", is_lcd);
1538 seq_printf(m, "crt_out: %d\n", is_crt);
1539 seq_printf(m, "tv_out: %d\n", is_tv);
1540
1541 return 0;
1542}
1543
1544static int video_proc_open(struct inode *inode, struct file *file)
1545{
1546 return single_open(file, video_proc_show, pde_data(inode));
1547}
1548
1549static ssize_t video_proc_write(struct file *file, const char __user *buf,
1550 size_t count, loff_t *pos)
1551{
1552 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1553 char *buffer;
1554 char *cmd;
1555 int lcd_out = -1, crt_out = -1, tv_out = -1;
1556 int remain = count;
1557 int value;
1558 int ret;
1559 u32 video_out;
1560
1561 cmd = memdup_user_nul(buf, count);
1562 if (IS_ERR(cmd))
1563 return PTR_ERR(cmd);
1564
1565 buffer = cmd;
1566
1567 /*
1568 * Scan expression. Multiple expressions may be delimited with ;
1569 * NOTE: To keep scanning simple, invalid fields are ignored.
1570 */
1571 while (remain) {
1572 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1573 lcd_out = value & 1;
1574 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1575 crt_out = value & 1;
1576 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1577 tv_out = value & 1;
1578 /* Advance to one character past the next ; */
1579 do {
1580 ++buffer;
1581 --remain;
1582 } while (remain && *(buffer - 1) != ';');
1583 }
1584
1585 kfree(cmd);
1586
1587 ret = get_video_status(dev, &video_out);
1588 if (!ret) {
1589 unsigned int new_video_out = video_out;
1590
1591 if (lcd_out != -1)
1592 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1593 if (crt_out != -1)
1594 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1595 if (tv_out != -1)
1596 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1597 /*
1598 * To avoid unnecessary video disruption, only write the new
1599 * video setting if something changed.
1600 */
1601 if (new_video_out != video_out)
1602 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1603 }
1604
1605 return ret ? -EIO : count;
1606}
1607
1608static const struct proc_ops video_proc_ops = {
1609 .proc_open = video_proc_open,
1610 .proc_read = seq_read,
1611 .proc_lseek = seq_lseek,
1612 .proc_release = single_release,
1613 .proc_write = video_proc_write,
1614};
1615
1616/* Fan status */
1617static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1618{
1619 u32 result = hci_read(dev, HCI_FAN, status);
1620
1621 if (result == TOS_FAILURE)
1622 pr_err("ACPI call to get Fan status failed\n");
1623 else if (result == TOS_NOT_SUPPORTED)
1624 return -ENODEV;
1625
1626 return result == TOS_SUCCESS ? 0 : -EIO;
1627}
1628
1629static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1630{
1631 u32 result = hci_write(dev, HCI_FAN, status);
1632
1633 if (result == TOS_FAILURE)
1634 pr_err("ACPI call to set Fan status failed\n");
1635 else if (result == TOS_NOT_SUPPORTED)
1636 return -ENODEV;
1637
1638 return result == TOS_SUCCESS ? 0 : -EIO;
1639}
1640
1641static int fan_proc_show(struct seq_file *m, void *v)
1642{
1643 struct toshiba_acpi_dev *dev = m->private;
1644 u32 value;
1645
1646 if (get_fan_status(dev, &value))
1647 return -EIO;
1648
1649 seq_printf(m, "running: %d\n", (value > 0));
1650 seq_printf(m, "force_on: %d\n", dev->force_fan);
1651
1652 return 0;
1653}
1654
1655static int fan_proc_open(struct inode *inode, struct file *file)
1656{
1657 return single_open(file, fan_proc_show, pde_data(inode));
1658}
1659
1660static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1661 size_t count, loff_t *pos)
1662{
1663 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1664 char cmd[42];
1665 size_t len;
1666 int value;
1667
1668 len = min(count, sizeof(cmd) - 1);
1669 if (copy_from_user(cmd, buf, len))
1670 return -EFAULT;
1671 cmd[len] = '\0';
1672
1673 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1674 value != 0 && value != 1)
1675 return -EINVAL;
1676
1677 if (set_fan_status(dev, value))
1678 return -EIO;
1679
1680 dev->force_fan = value;
1681
1682 return count;
1683}
1684
1685static const struct proc_ops fan_proc_ops = {
1686 .proc_open = fan_proc_open,
1687 .proc_read = seq_read,
1688 .proc_lseek = seq_lseek,
1689 .proc_release = single_release,
1690 .proc_write = fan_proc_write,
1691};
1692
1693/* Fan RPM */
1694static int get_fan_rpm(struct toshiba_acpi_dev *dev, u32 *rpm)
1695{
1696 u32 in[TCI_WORDS] = { HCI_GET, HCI_FAN_RPM, 0, 1, 0, 0 };
1697 u32 out[TCI_WORDS];
1698 acpi_status status = tci_raw(dev, in, out);
1699
1700 if (ACPI_FAILURE(status)) {
1701 pr_err("ACPI call to get Fan speed failed\n");
1702 return -EIO;
1703 }
1704
1705 if (out[0] == TOS_NOT_SUPPORTED)
1706 return -ENODEV;
1707
1708 if (out[0] == TOS_SUCCESS) {
1709 *rpm = out[2];
1710 return 0;
1711 }
1712
1713 return -EIO;
1714}
1715
1716static int keys_proc_show(struct seq_file *m, void *v)
1717{
1718 struct toshiba_acpi_dev *dev = m->private;
1719
1720 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1721 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1722
1723 return 0;
1724}
1725
1726static int keys_proc_open(struct inode *inode, struct file *file)
1727{
1728 return single_open(file, keys_proc_show, pde_data(inode));
1729}
1730
1731static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1732 size_t count, loff_t *pos)
1733{
1734 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1735 char cmd[42];
1736 size_t len;
1737 int value;
1738
1739 len = min(count, sizeof(cmd) - 1);
1740 if (copy_from_user(cmd, buf, len))
1741 return -EFAULT;
1742 cmd[len] = '\0';
1743
1744 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1745 dev->key_event_valid = 0;
1746 else
1747 return -EINVAL;
1748
1749 return count;
1750}
1751
1752static const struct proc_ops keys_proc_ops = {
1753 .proc_open = keys_proc_open,
1754 .proc_read = seq_read,
1755 .proc_lseek = seq_lseek,
1756 .proc_release = single_release,
1757 .proc_write = keys_proc_write,
1758};
1759
1760static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1761{
1762 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1763 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1764 return 0;
1765}
1766
1767/*
1768 * Proc and module init
1769 */
1770
1771#define PROC_TOSHIBA "toshiba"
1772
1773static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1774{
1775 if (dev->backlight_dev)
1776 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1777 &lcd_proc_ops, dev);
1778 if (dev->video_supported)
1779 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1780 &video_proc_ops, dev);
1781 if (dev->fan_supported)
1782 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1783 &fan_proc_ops, dev);
1784 if (dev->hotkey_dev)
1785 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1786 &keys_proc_ops, dev);
1787 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1788 version_proc_show, dev);
1789}
1790
1791static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1792{
1793 if (dev->backlight_dev)
1794 remove_proc_entry("lcd", toshiba_proc_dir);
1795 if (dev->video_supported)
1796 remove_proc_entry("video", toshiba_proc_dir);
1797 if (dev->fan_supported)
1798 remove_proc_entry("fan", toshiba_proc_dir);
1799 if (dev->hotkey_dev)
1800 remove_proc_entry("keys", toshiba_proc_dir);
1801 remove_proc_entry("version", toshiba_proc_dir);
1802}
1803
1804static const struct backlight_ops toshiba_backlight_data = {
1805 .options = BL_CORE_SUSPENDRESUME,
1806 .get_brightness = get_lcd_brightness,
1807 .update_status = set_lcd_status,
1808};
1809
1810/* Keyboard backlight work */
1811static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1812
1813static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1814
1815/*
1816 * Sysfs files
1817 */
1818static ssize_t version_show(struct device *dev,
1819 struct device_attribute *attr, char *buf)
1820{
1821 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1822}
1823static DEVICE_ATTR_RO(version);
1824
1825static ssize_t fan_store(struct device *dev,
1826 struct device_attribute *attr,
1827 const char *buf, size_t count)
1828{
1829 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1830 int state;
1831 int ret;
1832
1833 ret = kstrtoint(buf, 0, &state);
1834 if (ret)
1835 return ret;
1836
1837 if (state != 0 && state != 1)
1838 return -EINVAL;
1839
1840 ret = set_fan_status(toshiba, state);
1841 if (ret)
1842 return ret;
1843
1844 return count;
1845}
1846
1847static ssize_t fan_show(struct device *dev,
1848 struct device_attribute *attr, char *buf)
1849{
1850 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1851 u32 value;
1852 int ret;
1853
1854 ret = get_fan_status(toshiba, &value);
1855 if (ret)
1856 return ret;
1857
1858 return sprintf(buf, "%d\n", value);
1859}
1860static DEVICE_ATTR_RW(fan);
1861
1862static ssize_t kbd_backlight_mode_store(struct device *dev,
1863 struct device_attribute *attr,
1864 const char *buf, size_t count)
1865{
1866 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1867 int mode;
1868 int ret;
1869
1870
1871 ret = kstrtoint(buf, 0, &mode);
1872 if (ret)
1873 return ret;
1874
1875 /* Check for supported modes depending on keyboard backlight type */
1876 if (toshiba->kbd_type == 1) {
1877 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1878 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1879 return -EINVAL;
1880 } else if (toshiba->kbd_type == 2) {
1881 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1882 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1883 mode != SCI_KBD_MODE_OFF)
1884 return -EINVAL;
1885 }
1886
1887 /*
1888 * Set the Keyboard Backlight Mode where:
1889 * Auto - KBD backlight turns off automatically in given time
1890 * FN-Z - KBD backlight "toggles" when hotkey pressed
1891 * ON - KBD backlight is always on
1892 * OFF - KBD backlight is always off
1893 */
1894
1895 /* Only make a change if the actual mode has changed */
1896 if (toshiba->kbd_mode != mode) {
1897 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1898 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1899
1900 /* OR the "base time" to the actual method format */
1901 if (toshiba->kbd_type == 1) {
1902 /* Type 1 requires the current mode */
1903 time |= toshiba->kbd_mode;
1904 } else if (toshiba->kbd_type == 2) {
1905 /* Type 2 requires the desired mode */
1906 time |= mode;
1907 }
1908
1909 ret = toshiba_kbd_illum_status_set(toshiba, time);
1910 if (ret)
1911 return ret;
1912
1913 toshiba->kbd_mode = mode;
1914 toshiba_acpi->kbd_mode = mode;
1915
1916 /*
1917 * Some laptop models with the second generation backlit
1918 * keyboard (type 2) do not generate the keyboard backlight
1919 * changed event (0x92), and thus, the driver will never update
1920 * the sysfs entries.
1921 *
1922 * The event is generated right when changing the keyboard
1923 * backlight mode and the *notify function will set the
1924 * kbd_event_generated to true.
1925 *
1926 * In case the event is not generated, schedule the keyboard
1927 * backlight work to update the sysfs entries and emulate the
1928 * event via genetlink.
1929 */
1930 if (toshiba->kbd_type == 2 &&
1931 !toshiba->kbd_event_generated)
1932 schedule_work(&kbd_bl_work);
1933 }
1934
1935 return count;
1936}
1937
1938static ssize_t kbd_backlight_mode_show(struct device *dev,
1939 struct device_attribute *attr,
1940 char *buf)
1941{
1942 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1943 u32 time;
1944
1945 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1946 return -EIO;
1947
1948 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1949}
1950static DEVICE_ATTR_RW(kbd_backlight_mode);
1951
1952static ssize_t kbd_type_show(struct device *dev,
1953 struct device_attribute *attr, char *buf)
1954{
1955 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1956
1957 return sprintf(buf, "%d\n", toshiba->kbd_type);
1958}
1959static DEVICE_ATTR_RO(kbd_type);
1960
1961static ssize_t available_kbd_modes_show(struct device *dev,
1962 struct device_attribute *attr,
1963 char *buf)
1964{
1965 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1966
1967 if (toshiba->kbd_type == 1)
1968 return sprintf(buf, "0x%x 0x%x\n",
1969 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1970
1971 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1972 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1973}
1974static DEVICE_ATTR_RO(available_kbd_modes);
1975
1976static ssize_t kbd_backlight_timeout_store(struct device *dev,
1977 struct device_attribute *attr,
1978 const char *buf, size_t count)
1979{
1980 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1981 int time;
1982 int ret;
1983
1984 ret = kstrtoint(buf, 0, &time);
1985 if (ret)
1986 return ret;
1987
1988 /* Check for supported values depending on kbd_type */
1989 if (toshiba->kbd_type == 1) {
1990 if (time < 0 || time > 60)
1991 return -EINVAL;
1992 } else if (toshiba->kbd_type == 2) {
1993 if (time < 1 || time > 60)
1994 return -EINVAL;
1995 }
1996
1997 /* Set the Keyboard Backlight Timeout */
1998
1999 /* Only make a change if the actual timeout has changed */
2000 if (toshiba->kbd_time != time) {
2001 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
2002 time = time << HCI_MISC_SHIFT;
2003 /* OR the "base time" to the actual method format */
2004 if (toshiba->kbd_type == 1)
2005 time |= SCI_KBD_MODE_FNZ;
2006 else if (toshiba->kbd_type == 2)
2007 time |= SCI_KBD_MODE_AUTO;
2008
2009 ret = toshiba_kbd_illum_status_set(toshiba, time);
2010 if (ret)
2011 return ret;
2012
2013 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
2014 }
2015
2016 return count;
2017}
2018
2019static ssize_t kbd_backlight_timeout_show(struct device *dev,
2020 struct device_attribute *attr,
2021 char *buf)
2022{
2023 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2024 u32 time;
2025
2026 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
2027 return -EIO;
2028
2029 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
2030}
2031static DEVICE_ATTR_RW(kbd_backlight_timeout);
2032
2033static ssize_t touchpad_store(struct device *dev,
2034 struct device_attribute *attr,
2035 const char *buf, size_t count)
2036{
2037 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2038 int state;
2039 int ret;
2040
2041 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
2042 ret = kstrtoint(buf, 0, &state);
2043 if (ret)
2044 return ret;
2045 if (state != 0 && state != 1)
2046 return -EINVAL;
2047
2048 ret = toshiba_touchpad_set(toshiba, state);
2049 if (ret)
2050 return ret;
2051
2052 return count;
2053}
2054
2055static ssize_t touchpad_show(struct device *dev,
2056 struct device_attribute *attr, char *buf)
2057{
2058 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2059 u32 state;
2060 int ret;
2061
2062 ret = toshiba_touchpad_get(toshiba, &state);
2063 if (ret < 0)
2064 return ret;
2065
2066 return sprintf(buf, "%i\n", state);
2067}
2068static DEVICE_ATTR_RW(touchpad);
2069
2070static ssize_t usb_sleep_charge_show(struct device *dev,
2071 struct device_attribute *attr, char *buf)
2072{
2073 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2074 u32 mode;
2075 int ret;
2076
2077 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2078 if (ret < 0)
2079 return ret;
2080
2081 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2082}
2083
2084static ssize_t usb_sleep_charge_store(struct device *dev,
2085 struct device_attribute *attr,
2086 const char *buf, size_t count)
2087{
2088 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2089 int state;
2090 u32 mode;
2091 int ret;
2092
2093 ret = kstrtoint(buf, 0, &state);
2094 if (ret)
2095 return ret;
2096 /*
2097 * Check for supported values, where:
2098 * 0 - Disabled
2099 * 1 - Alternate (Non USB conformant devices that require more power)
2100 * 2 - Auto (USB conformant devices)
2101 * 3 - Typical
2102 */
2103 if (state != 0 && state != 1 && state != 2 && state != 3)
2104 return -EINVAL;
2105
2106 /* Set the USB charging mode to internal value */
2107 mode = toshiba->usbsc_mode_base;
2108 if (state == 0)
2109 mode |= SCI_USB_CHARGE_DISABLED;
2110 else if (state == 1)
2111 mode |= SCI_USB_CHARGE_ALTERNATE;
2112 else if (state == 2)
2113 mode |= SCI_USB_CHARGE_AUTO;
2114 else if (state == 3)
2115 mode |= SCI_USB_CHARGE_TYPICAL;
2116
2117 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2118 if (ret)
2119 return ret;
2120
2121 return count;
2122}
2123static DEVICE_ATTR_RW(usb_sleep_charge);
2124
2125static ssize_t sleep_functions_on_battery_show(struct device *dev,
2126 struct device_attribute *attr,
2127 char *buf)
2128{
2129 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2130 int bat_lvl, status;
2131 u32 state;
2132 int ret;
2133 int tmp;
2134
2135 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2136 if (ret < 0)
2137 return ret;
2138
2139 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2140 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2141 status = (tmp == 0x4) ? 1 : 0;
2142 /* Determine the battery level set */
2143 bat_lvl = state >> HCI_MISC_SHIFT;
2144
2145 return sprintf(buf, "%d %d\n", status, bat_lvl);
2146}
2147
2148static ssize_t sleep_functions_on_battery_store(struct device *dev,
2149 struct device_attribute *attr,
2150 const char *buf, size_t count)
2151{
2152 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2153 u32 status;
2154 int value;
2155 int ret;
2156 int tmp;
2157
2158 ret = kstrtoint(buf, 0, &value);
2159 if (ret)
2160 return ret;
2161
2162 /*
2163 * Set the status of the function:
2164 * 0 - Disabled
2165 * 1-100 - Enabled
2166 */
2167 if (value < 0 || value > 100)
2168 return -EINVAL;
2169
2170 if (value == 0) {
2171 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2172 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2173 } else {
2174 tmp = value << HCI_MISC_SHIFT;
2175 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2176 }
2177 ret = toshiba_sleep_functions_status_set(toshiba, status);
2178 if (ret < 0)
2179 return ret;
2180
2181 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2182
2183 return count;
2184}
2185static DEVICE_ATTR_RW(sleep_functions_on_battery);
2186
2187static ssize_t usb_rapid_charge_show(struct device *dev,
2188 struct device_attribute *attr, char *buf)
2189{
2190 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2191 u32 state;
2192 int ret;
2193
2194 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2195 if (ret < 0)
2196 return ret;
2197
2198 return sprintf(buf, "%d\n", state);
2199}
2200
2201static ssize_t usb_rapid_charge_store(struct device *dev,
2202 struct device_attribute *attr,
2203 const char *buf, size_t count)
2204{
2205 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2206 int state;
2207 int ret;
2208
2209 ret = kstrtoint(buf, 0, &state);
2210 if (ret)
2211 return ret;
2212 if (state != 0 && state != 1)
2213 return -EINVAL;
2214
2215 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2216 if (ret)
2217 return ret;
2218
2219 return count;
2220}
2221static DEVICE_ATTR_RW(usb_rapid_charge);
2222
2223static ssize_t usb_sleep_music_show(struct device *dev,
2224 struct device_attribute *attr, char *buf)
2225{
2226 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2227 u32 state;
2228 int ret;
2229
2230 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2231 if (ret < 0)
2232 return ret;
2233
2234 return sprintf(buf, "%d\n", state);
2235}
2236
2237static ssize_t usb_sleep_music_store(struct device *dev,
2238 struct device_attribute *attr,
2239 const char *buf, size_t count)
2240{
2241 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2242 int state;
2243 int ret;
2244
2245 ret = kstrtoint(buf, 0, &state);
2246 if (ret)
2247 return ret;
2248 if (state != 0 && state != 1)
2249 return -EINVAL;
2250
2251 ret = toshiba_usb_sleep_music_set(toshiba, state);
2252 if (ret)
2253 return ret;
2254
2255 return count;
2256}
2257static DEVICE_ATTR_RW(usb_sleep_music);
2258
2259static ssize_t kbd_function_keys_show(struct device *dev,
2260 struct device_attribute *attr, char *buf)
2261{
2262 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2263 int mode;
2264 int ret;
2265
2266 ret = toshiba_function_keys_get(toshiba, &mode);
2267 if (ret < 0)
2268 return ret;
2269
2270 return sprintf(buf, "%d\n", mode);
2271}
2272
2273static ssize_t kbd_function_keys_store(struct device *dev,
2274 struct device_attribute *attr,
2275 const char *buf, size_t count)
2276{
2277 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2278 int mode;
2279 int ret;
2280
2281 ret = kstrtoint(buf, 0, &mode);
2282 if (ret)
2283 return ret;
2284 /*
2285 * Check for the function keys mode where:
2286 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2287 * 1 - Special functions (Opposite of the above setting)
2288 */
2289 if (mode != 0 && mode != 1)
2290 return -EINVAL;
2291
2292 ret = toshiba_function_keys_set(toshiba, mode);
2293 if (ret)
2294 return ret;
2295
2296 pr_info("Reboot for changes to KBD Function Keys to take effect");
2297
2298 return count;
2299}
2300static DEVICE_ATTR_RW(kbd_function_keys);
2301
2302static ssize_t panel_power_on_show(struct device *dev,
2303 struct device_attribute *attr, char *buf)
2304{
2305 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2306 u32 state;
2307 int ret;
2308
2309 ret = toshiba_panel_power_on_get(toshiba, &state);
2310 if (ret < 0)
2311 return ret;
2312
2313 return sprintf(buf, "%d\n", state);
2314}
2315
2316static ssize_t panel_power_on_store(struct device *dev,
2317 struct device_attribute *attr,
2318 const char *buf, size_t count)
2319{
2320 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2321 int state;
2322 int ret;
2323
2324 ret = kstrtoint(buf, 0, &state);
2325 if (ret)
2326 return ret;
2327 if (state != 0 && state != 1)
2328 return -EINVAL;
2329
2330 ret = toshiba_panel_power_on_set(toshiba, state);
2331 if (ret)
2332 return ret;
2333
2334 pr_info("Reboot for changes to Panel Power ON to take effect");
2335
2336 return count;
2337}
2338static DEVICE_ATTR_RW(panel_power_on);
2339
2340static ssize_t usb_three_show(struct device *dev,
2341 struct device_attribute *attr, char *buf)
2342{
2343 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2344 u32 state;
2345 int ret;
2346
2347 ret = toshiba_usb_three_get(toshiba, &state);
2348 if (ret < 0)
2349 return ret;
2350
2351 return sprintf(buf, "%d\n", state);
2352}
2353
2354static ssize_t usb_three_store(struct device *dev,
2355 struct device_attribute *attr,
2356 const char *buf, size_t count)
2357{
2358 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2359 int state;
2360 int ret;
2361
2362 ret = kstrtoint(buf, 0, &state);
2363 if (ret)
2364 return ret;
2365 /*
2366 * Check for USB 3 mode where:
2367 * 0 - Disabled (Acts like a USB 2 port, saving power)
2368 * 1 - Enabled
2369 */
2370 if (state != 0 && state != 1)
2371 return -EINVAL;
2372
2373 ret = toshiba_usb_three_set(toshiba, state);
2374 if (ret)
2375 return ret;
2376
2377 pr_info("Reboot for changes to USB 3 to take effect");
2378
2379 return count;
2380}
2381static DEVICE_ATTR_RW(usb_three);
2382
2383static ssize_t cooling_method_show(struct device *dev,
2384 struct device_attribute *attr, char *buf)
2385{
2386 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2387 int state;
2388 int ret;
2389
2390 ret = toshiba_cooling_method_get(toshiba, &state);
2391 if (ret < 0)
2392 return ret;
2393
2394 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2395}
2396
2397static ssize_t cooling_method_store(struct device *dev,
2398 struct device_attribute *attr,
2399 const char *buf, size_t count)
2400{
2401 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2402 int state;
2403 int ret;
2404
2405 ret = kstrtoint(buf, 0, &state);
2406 if (ret)
2407 return ret;
2408
2409 /*
2410 * Check for supported values
2411 * Depending on the laptop model, some only support these two:
2412 * 0 - Maximum Performance
2413 * 1 - Battery Optimized
2414 *
2415 * While some others support all three methods:
2416 * 0 - Maximum Performance
2417 * 1 - Performance
2418 * 2 - Battery Optimized
2419 */
2420 if (state < 0 || state > toshiba->max_cooling_method)
2421 return -EINVAL;
2422
2423 ret = toshiba_cooling_method_set(toshiba, state);
2424 if (ret)
2425 return ret;
2426
2427 return count;
2428}
2429static DEVICE_ATTR_RW(cooling_method);
2430
2431static struct attribute *toshiba_attributes[] = {
2432 &dev_attr_version.attr,
2433 &dev_attr_fan.attr,
2434 &dev_attr_kbd_backlight_mode.attr,
2435 &dev_attr_kbd_type.attr,
2436 &dev_attr_available_kbd_modes.attr,
2437 &dev_attr_kbd_backlight_timeout.attr,
2438 &dev_attr_touchpad.attr,
2439 &dev_attr_usb_sleep_charge.attr,
2440 &dev_attr_sleep_functions_on_battery.attr,
2441 &dev_attr_usb_rapid_charge.attr,
2442 &dev_attr_usb_sleep_music.attr,
2443 &dev_attr_kbd_function_keys.attr,
2444 &dev_attr_panel_power_on.attr,
2445 &dev_attr_usb_three.attr,
2446 &dev_attr_cooling_method.attr,
2447 NULL,
2448};
2449
2450static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2451 struct attribute *attr, int idx)
2452{
2453 struct device *dev = kobj_to_dev(kobj);
2454 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2455 bool exists = true;
2456
2457 if (attr == &dev_attr_fan.attr)
2458 exists = (drv->fan_supported) ? true : false;
2459 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2460 exists = (drv->kbd_illum_supported) ? true : false;
2461 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2462 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2463 else if (attr == &dev_attr_touchpad.attr)
2464 exists = (drv->touchpad_supported) ? true : false;
2465 else if (attr == &dev_attr_usb_sleep_charge.attr)
2466 exists = (drv->usb_sleep_charge_supported) ? true : false;
2467 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2468 exists = (drv->usb_sleep_charge_supported) ? true : false;
2469 else if (attr == &dev_attr_usb_rapid_charge.attr)
2470 exists = (drv->usb_rapid_charge_supported) ? true : false;
2471 else if (attr == &dev_attr_usb_sleep_music.attr)
2472 exists = (drv->usb_sleep_music_supported) ? true : false;
2473 else if (attr == &dev_attr_kbd_function_keys.attr)
2474 exists = (drv->kbd_function_keys_supported) ? true : false;
2475 else if (attr == &dev_attr_panel_power_on.attr)
2476 exists = (drv->panel_power_on_supported) ? true : false;
2477 else if (attr == &dev_attr_usb_three.attr)
2478 exists = (drv->usb_three_supported) ? true : false;
2479 else if (attr == &dev_attr_cooling_method.attr)
2480 exists = (drv->cooling_method_supported) ? true : false;
2481
2482 return exists ? attr->mode : 0;
2483}
2484
2485static const struct attribute_group toshiba_attr_group = {
2486 .is_visible = toshiba_sysfs_is_visible,
2487 .attrs = toshiba_attributes,
2488};
2489
2490static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2491{
2492 /* Update the sysfs entries */
2493 if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2494 &toshiba_attr_group))
2495 pr_err("Unable to update sysfs entries\n");
2496
2497 /* Notify LED subsystem about keyboard backlight change */
2498 if (toshiba_acpi->kbd_type == 2 &&
2499 toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2500 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2501 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2502 LED_FULL : LED_OFF);
2503
2504 /* Emulate the keyboard backlight event */
2505 acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2506 dev_name(&toshiba_acpi->acpi_dev->dev),
2507 0x92, 0);
2508}
2509
2510/*
2511 * IIO device
2512 */
2513
2514enum toshiba_iio_accel_chan {
2515 AXIS_X,
2516 AXIS_Y,
2517 AXIS_Z
2518};
2519
2520static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2521{
2522 u32 xyval, zval;
2523 int ret;
2524
2525 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2526 if (ret < 0)
2527 return ret;
2528
2529 switch (chan) {
2530 case AXIS_X:
2531 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2532 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2533 case AXIS_Y:
2534 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2535 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2536 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2537 case AXIS_Z:
2538 return zval & HCI_ACCEL_DIRECTION_MASK ?
2539 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2540 }
2541
2542 return ret;
2543}
2544
2545static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2546 struct iio_chan_spec const *chan,
2547 int *val, int *val2, long mask)
2548{
2549 int ret;
2550
2551 switch (mask) {
2552 case IIO_CHAN_INFO_RAW:
2553 ret = toshiba_iio_accel_get_axis(chan->channel);
2554 if (ret == -EIO || ret == -ENODEV)
2555 return ret;
2556
2557 *val = ret;
2558
2559 return IIO_VAL_INT;
2560 }
2561
2562 return -EINVAL;
2563}
2564
2565#define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2566 .type = IIO_ACCEL, \
2567 .modified = 1, \
2568 .channel = chan, \
2569 .channel2 = IIO_MOD_##axis, \
2570 .output = 1, \
2571 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2572}
2573
2574static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2575 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2576 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2577 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2578};
2579
2580static const struct iio_info toshiba_iio_accel_info = {
2581 .read_raw = &toshiba_iio_accel_read_raw,
2582};
2583
2584/*
2585 * Misc device
2586 */
2587static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2588{
2589 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2590 regs->edx, regs->esi, regs->edi };
2591 u32 out[TCI_WORDS];
2592 acpi_status status;
2593
2594 status = tci_raw(toshiba_acpi, in, out);
2595 if (ACPI_FAILURE(status)) {
2596 pr_err("ACPI call to query SMM registers failed\n");
2597 return -EIO;
2598 }
2599
2600 /* Fillout the SMM struct with the TCI call results */
2601 regs->eax = out[0];
2602 regs->ebx = out[1];
2603 regs->ecx = out[2];
2604 regs->edx = out[3];
2605 regs->esi = out[4];
2606 regs->edi = out[5];
2607
2608 return 0;
2609}
2610
2611static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2612 unsigned long arg)
2613{
2614 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2615 SMMRegisters regs;
2616 int ret;
2617
2618 if (!argp)
2619 return -EINVAL;
2620
2621 switch (cmd) {
2622 case TOSH_SMM:
2623 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2624 return -EFAULT;
2625 ret = toshiba_acpi_smm_bridge(®s);
2626 if (ret)
2627 return ret;
2628 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2629 return -EFAULT;
2630 break;
2631 case TOSHIBA_ACPI_SCI:
2632 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2633 return -EFAULT;
2634 /* Ensure we are being called with a SCI_{GET, SET} register */
2635 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2636 return -EINVAL;
2637 if (!sci_open(toshiba_acpi))
2638 return -EIO;
2639 ret = toshiba_acpi_smm_bridge(®s);
2640 sci_close(toshiba_acpi);
2641 if (ret)
2642 return ret;
2643 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2644 return -EFAULT;
2645 break;
2646 default:
2647 return -EINVAL;
2648 }
2649
2650 return 0;
2651}
2652
2653static const struct file_operations toshiba_acpi_fops = {
2654 .owner = THIS_MODULE,
2655 .unlocked_ioctl = toshiba_acpi_ioctl,
2656 .llseek = noop_llseek,
2657};
2658
2659/*
2660 * WWAN RFKill handlers
2661 */
2662static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2663{
2664 struct toshiba_acpi_dev *dev = data;
2665 int ret;
2666
2667 ret = toshiba_wireless_status(dev);
2668 if (ret)
2669 return ret;
2670
2671 if (!dev->killswitch)
2672 return 0;
2673
2674 return toshiba_wwan_set(dev, !blocked);
2675}
2676
2677static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2678{
2679 struct toshiba_acpi_dev *dev = data;
2680
2681 if (toshiba_wireless_status(dev))
2682 return;
2683
2684 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2685}
2686
2687static const struct rfkill_ops wwan_rfk_ops = {
2688 .set_block = toshiba_acpi_wwan_set_block,
2689 .poll = toshiba_acpi_wwan_poll,
2690};
2691
2692static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2693{
2694 int ret = toshiba_wireless_status(dev);
2695
2696 if (ret)
2697 return ret;
2698
2699 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2700 &dev->acpi_dev->dev,
2701 RFKILL_TYPE_WWAN,
2702 &wwan_rfk_ops,
2703 dev);
2704 if (!dev->wwan_rfk) {
2705 pr_err("Unable to allocate WWAN rfkill device\n");
2706 return -ENOMEM;
2707 }
2708
2709 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2710
2711 ret = rfkill_register(dev->wwan_rfk);
2712 if (ret) {
2713 pr_err("Unable to register WWAN rfkill device\n");
2714 rfkill_destroy(dev->wwan_rfk);
2715 }
2716
2717 return ret;
2718}
2719
2720/*
2721 * Hotkeys
2722 */
2723static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2724{
2725 acpi_status status;
2726 u32 result;
2727
2728 status = acpi_evaluate_object(dev->acpi_dev->handle,
2729 "ENAB", NULL, NULL);
2730 if (ACPI_FAILURE(status))
2731 return -ENODEV;
2732
2733 /*
2734 * Enable the "Special Functions" mode only if they are
2735 * supported and if they are activated.
2736 */
2737 if (dev->kbd_function_keys_supported && dev->special_functions)
2738 result = hci_write(dev, HCI_HOTKEY_EVENT,
2739 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2740 else
2741 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2742
2743 if (result == TOS_FAILURE)
2744 return -EIO;
2745 else if (result == TOS_NOT_SUPPORTED)
2746 return -ENODEV;
2747
2748 return 0;
2749}
2750
2751static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2752 struct serio *port)
2753{
2754 if (str & I8042_STR_AUXDATA)
2755 return false;
2756
2757 if (unlikely(data == 0xe0))
2758 return false;
2759
2760 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2761 schedule_work(&toshiba_acpi->hotkey_work);
2762 return true;
2763 }
2764
2765 return false;
2766}
2767
2768static void toshiba_acpi_hotkey_work(struct work_struct *work)
2769{
2770 acpi_handle ec_handle = ec_get_handle();
2771 acpi_status status;
2772
2773 if (!ec_handle)
2774 return;
2775
2776 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2777 if (ACPI_FAILURE(status))
2778 pr_err("ACPI NTFY method execution failed\n");
2779}
2780
2781/*
2782 * Returns hotkey scancode, or < 0 on failure.
2783 */
2784static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2785{
2786 unsigned long long value;
2787 acpi_status status;
2788
2789 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2790 NULL, &value);
2791 if (ACPI_FAILURE(status)) {
2792 pr_err("ACPI INFO method execution failed\n");
2793 return -EIO;
2794 }
2795
2796 return value;
2797}
2798
2799static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2800 int scancode)
2801{
2802 if (scancode == 0x100)
2803 return;
2804
2805 /* Act on key press; ignore key release */
2806 if (scancode & 0x80)
2807 return;
2808
2809 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2810 pr_info("Unknown key %x\n", scancode);
2811}
2812
2813static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2814{
2815 if (dev->info_supported) {
2816 int scancode = toshiba_acpi_query_hotkey(dev);
2817
2818 if (scancode < 0) {
2819 pr_err("Failed to query hotkey event\n");
2820 } else if (scancode != 0) {
2821 toshiba_acpi_report_hotkey(dev, scancode);
2822 dev->key_event_valid = 1;
2823 dev->last_key_event = scancode;
2824 }
2825 } else if (dev->system_event_supported) {
2826 u32 result;
2827 u32 value;
2828 int retries = 3;
2829
2830 do {
2831 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2832 switch (result) {
2833 case TOS_SUCCESS:
2834 toshiba_acpi_report_hotkey(dev, (int)value);
2835 dev->key_event_valid = 1;
2836 dev->last_key_event = value;
2837 break;
2838 case TOS_NOT_SUPPORTED:
2839 /*
2840 * This is a workaround for an unresolved
2841 * issue on some machines where system events
2842 * sporadically become disabled.
2843 */
2844 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2845 if (result == TOS_SUCCESS)
2846 pr_notice("Re-enabled hotkeys\n");
2847 fallthrough;
2848 default:
2849 retries--;
2850 break;
2851 }
2852 } while (retries && result != TOS_FIFO_EMPTY);
2853 }
2854}
2855
2856static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2857{
2858 const struct key_entry *keymap = toshiba_acpi_keymap;
2859 acpi_handle ec_handle;
2860 int error;
2861
2862 if (disable_hotkeys) {
2863 pr_info("Hotkeys disabled by module parameter\n");
2864 return 0;
2865 }
2866
2867 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2868 pr_info("WMI event detected, hotkeys will not be monitored\n");
2869 return 0;
2870 }
2871
2872 error = toshiba_acpi_enable_hotkeys(dev);
2873 if (error)
2874 return error;
2875
2876 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2877 pr_notice("Unable to query Hotkey Event Type\n");
2878
2879 dev->hotkey_dev = input_allocate_device();
2880 if (!dev->hotkey_dev)
2881 return -ENOMEM;
2882
2883 dev->hotkey_dev->name = "Toshiba input device";
2884 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2885 dev->hotkey_dev->id.bustype = BUS_HOST;
2886 dev->hotkey_dev->dev.parent = &dev->acpi_dev->dev;
2887
2888 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2889 !dev->kbd_function_keys_supported)
2890 keymap = toshiba_acpi_keymap;
2891 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2892 dev->kbd_function_keys_supported)
2893 keymap = toshiba_acpi_alt_keymap;
2894 else
2895 pr_info("Unknown event type received %x\n",
2896 dev->hotkey_event_type);
2897 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2898 if (error)
2899 goto err_free_dev;
2900
2901 /*
2902 * For some machines the SCI responsible for providing hotkey
2903 * notification doesn't fire. We can trigger the notification
2904 * whenever the Fn key is pressed using the NTFY method, if
2905 * supported, so if it's present set up an i8042 key filter
2906 * for this purpose.
2907 */
2908 ec_handle = ec_get_handle();
2909 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2910 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2911
2912 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2913 if (error) {
2914 pr_err("Error installing key filter\n");
2915 goto err_free_dev;
2916 }
2917
2918 dev->ntfy_supported = 1;
2919 }
2920
2921 /*
2922 * Determine hotkey query interface. Prefer using the INFO
2923 * method when it is available.
2924 */
2925 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2926 dev->info_supported = 1;
2927 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2928 dev->system_event_supported = 1;
2929
2930 if (!dev->info_supported && !dev->system_event_supported) {
2931 pr_warn("No hotkey query interface found\n");
2932 error = -EINVAL;
2933 goto err_remove_filter;
2934 }
2935
2936 error = input_register_device(dev->hotkey_dev);
2937 if (error) {
2938 pr_info("Unable to register input device\n");
2939 goto err_remove_filter;
2940 }
2941
2942 return 0;
2943
2944 err_remove_filter:
2945 if (dev->ntfy_supported)
2946 i8042_remove_filter(toshiba_acpi_i8042_filter);
2947 err_free_dev:
2948 input_free_device(dev->hotkey_dev);
2949 dev->hotkey_dev = NULL;
2950 return error;
2951}
2952
2953static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2954{
2955 struct backlight_properties props;
2956 int brightness;
2957 int ret;
2958
2959 /*
2960 * Some machines don't support the backlight methods at all, and
2961 * others support it read-only. Either of these is pretty useless,
2962 * so only register the backlight device if the backlight method
2963 * supports both reads and writes.
2964 */
2965 brightness = __get_lcd_brightness(dev);
2966 if (brightness < 0)
2967 return 0;
2968 /*
2969 * If transflective backlight is supported and the brightness is zero
2970 * (lowest brightness level), the set_lcd_brightness function will
2971 * activate the transflective backlight, making the LCD appear to be
2972 * turned off, simply increment the brightness level to avoid that.
2973 */
2974 if (dev->tr_backlight_supported && brightness == 0)
2975 brightness++;
2976 ret = set_lcd_brightness(dev, brightness);
2977 if (ret) {
2978 pr_debug("Backlight method is read-only, disabling backlight support\n");
2979 return 0;
2980 }
2981
2982 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2983 return 0;
2984
2985 memset(&props, 0, sizeof(props));
2986 props.type = BACKLIGHT_PLATFORM;
2987 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2988
2989 /* Adding an extra level and having 0 change to transflective mode */
2990 if (dev->tr_backlight_supported)
2991 props.max_brightness++;
2992
2993 dev->backlight_dev = backlight_device_register("toshiba",
2994 &dev->acpi_dev->dev,
2995 dev,
2996 &toshiba_backlight_data,
2997 &props);
2998 if (IS_ERR(dev->backlight_dev)) {
2999 ret = PTR_ERR(dev->backlight_dev);
3000 pr_err("Could not register toshiba backlight device\n");
3001 dev->backlight_dev = NULL;
3002 return ret;
3003 }
3004
3005 dev->backlight_dev->props.brightness = brightness;
3006 return 0;
3007}
3008
3009/* HWMON support for fan */
3010#if IS_ENABLED(CONFIG_HWMON)
3011static umode_t toshiba_acpi_hwmon_is_visible(const void *drvdata,
3012 enum hwmon_sensor_types type,
3013 u32 attr, int channel)
3014{
3015 return 0444;
3016}
3017
3018static int toshiba_acpi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
3019 u32 attr, int channel, long *val)
3020{
3021 /*
3022 * There is only a single channel and single attribute (for the
3023 * fan) at this point.
3024 * This can be replaced with more advanced logic in the future,
3025 * should the need arise.
3026 */
3027 if (type == hwmon_fan && channel == 0 && attr == hwmon_fan_input) {
3028 u32 value;
3029 int ret;
3030
3031 ret = get_fan_rpm(toshiba_acpi, &value);
3032 if (ret)
3033 return ret;
3034
3035 *val = value;
3036 return 0;
3037 }
3038 return -EOPNOTSUPP;
3039}
3040
3041static const struct hwmon_channel_info * const toshiba_acpi_hwmon_info[] = {
3042 HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT),
3043 NULL
3044};
3045
3046static const struct hwmon_ops toshiba_acpi_hwmon_ops = {
3047 .is_visible = toshiba_acpi_hwmon_is_visible,
3048 .read = toshiba_acpi_hwmon_read,
3049};
3050
3051static const struct hwmon_chip_info toshiba_acpi_hwmon_chip_info = {
3052 .ops = &toshiba_acpi_hwmon_ops,
3053 .info = toshiba_acpi_hwmon_info,
3054};
3055#endif
3056
3057/* ACPI battery hooking */
3058static ssize_t charge_control_end_threshold_show(struct device *device,
3059 struct device_attribute *attr,
3060 char *buf)
3061{
3062 u32 state;
3063 int status;
3064
3065 if (toshiba_acpi == NULL) {
3066 pr_err("Toshiba ACPI object invalid\n");
3067 return -ENODEV;
3068 }
3069
3070 status = toshiba_battery_charge_mode_get(toshiba_acpi, &state);
3071
3072 if (status != 0)
3073 return status;
3074
3075 if (state == 1)
3076 return sprintf(buf, "80\n");
3077 else
3078 return sprintf(buf, "100\n");
3079}
3080
3081static ssize_t charge_control_end_threshold_store(struct device *dev,
3082 struct device_attribute *attr,
3083 const char *buf,
3084 size_t count)
3085{
3086 u32 value;
3087 int rval;
3088
3089 if (toshiba_acpi == NULL) {
3090 pr_err("Toshiba ACPI object invalid\n");
3091 return -ENODEV;
3092 }
3093
3094 rval = kstrtou32(buf, 10, &value);
3095 if (rval)
3096 return rval;
3097
3098 if (value < 1 || value > 100)
3099 return -EINVAL;
3100 rval = toshiba_battery_charge_mode_set(toshiba_acpi,
3101 (value < 90) ? 1 : 0);
3102 if (rval < 0)
3103 return rval;
3104 else
3105 return count;
3106}
3107
3108static DEVICE_ATTR_RW(charge_control_end_threshold);
3109
3110static struct attribute *toshiba_acpi_battery_attrs[] = {
3111 &dev_attr_charge_control_end_threshold.attr,
3112 NULL,
3113};
3114
3115ATTRIBUTE_GROUPS(toshiba_acpi_battery);
3116
3117static int toshiba_acpi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
3118{
3119 if (toshiba_acpi == NULL) {
3120 pr_err("Init order issue\n");
3121 return -ENODEV;
3122 }
3123 if (!toshiba_acpi->battery_charge_mode_supported)
3124 return -ENODEV;
3125 if (device_add_groups(&battery->dev, toshiba_acpi_battery_groups))
3126 return -ENODEV;
3127 return 0;
3128}
3129
3130static int toshiba_acpi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
3131{
3132 device_remove_groups(&battery->dev, toshiba_acpi_battery_groups);
3133 return 0;
3134}
3135
3136static struct acpi_battery_hook battery_hook = {
3137 .add_battery = toshiba_acpi_battery_add,
3138 .remove_battery = toshiba_acpi_battery_remove,
3139 .name = "Toshiba Battery Extension",
3140};
3141
3142static void print_supported_features(struct toshiba_acpi_dev *dev)
3143{
3144 pr_info("Supported laptop features:");
3145
3146 if (dev->hotkey_dev)
3147 pr_cont(" hotkeys");
3148 if (dev->backlight_dev)
3149 pr_cont(" backlight");
3150 if (dev->video_supported)
3151 pr_cont(" video-out");
3152 if (dev->fan_supported)
3153 pr_cont(" fan");
3154 if (dev->fan_rpm_supported)
3155 pr_cont(" fan-rpm");
3156 if (dev->tr_backlight_supported)
3157 pr_cont(" transflective-backlight");
3158 if (dev->illumination_supported)
3159 pr_cont(" illumination");
3160 if (dev->kbd_illum_supported)
3161 pr_cont(" keyboard-backlight");
3162 if (dev->touchpad_supported)
3163 pr_cont(" touchpad");
3164 if (dev->eco_supported)
3165 pr_cont(" eco-led");
3166 if (dev->accelerometer_supported)
3167 pr_cont(" accelerometer-axes");
3168 if (dev->usb_sleep_charge_supported)
3169 pr_cont(" usb-sleep-charge");
3170 if (dev->usb_rapid_charge_supported)
3171 pr_cont(" usb-rapid-charge");
3172 if (dev->usb_sleep_music_supported)
3173 pr_cont(" usb-sleep-music");
3174 if (dev->kbd_function_keys_supported)
3175 pr_cont(" special-function-keys");
3176 if (dev->panel_power_on_supported)
3177 pr_cont(" panel-power-on");
3178 if (dev->usb_three_supported)
3179 pr_cont(" usb3");
3180 if (dev->wwan_supported)
3181 pr_cont(" wwan");
3182 if (dev->cooling_method_supported)
3183 pr_cont(" cooling-method");
3184 if (dev->battery_charge_mode_supported)
3185 pr_cont(" battery-charge-mode");
3186
3187 pr_cont("\n");
3188}
3189
3190static void toshiba_acpi_remove(struct acpi_device *acpi_dev)
3191{
3192 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3193
3194 misc_deregister(&dev->miscdev);
3195
3196 remove_toshiba_proc_entries(dev);
3197
3198#if IS_ENABLED(CONFIG_HWMON)
3199 if (dev->hwmon_device)
3200 hwmon_device_unregister(dev->hwmon_device);
3201#endif
3202
3203 if (dev->accelerometer_supported && dev->indio_dev) {
3204 iio_device_unregister(dev->indio_dev);
3205 iio_device_free(dev->indio_dev);
3206 }
3207
3208 if (dev->sysfs_created)
3209 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3210 &toshiba_attr_group);
3211
3212 if (dev->ntfy_supported) {
3213 i8042_remove_filter(toshiba_acpi_i8042_filter);
3214 cancel_work_sync(&dev->hotkey_work);
3215 }
3216
3217 if (dev->hotkey_dev)
3218 input_unregister_device(dev->hotkey_dev);
3219
3220 backlight_device_unregister(dev->backlight_dev);
3221
3222 led_classdev_unregister(&dev->led_dev);
3223 led_classdev_unregister(&dev->kbd_led);
3224 led_classdev_unregister(&dev->eco_led);
3225
3226 if (dev->wwan_rfk) {
3227 rfkill_unregister(dev->wwan_rfk);
3228 rfkill_destroy(dev->wwan_rfk);
3229 }
3230
3231 if (dev->battery_charge_mode_supported)
3232 battery_hook_unregister(&battery_hook);
3233
3234 if (toshiba_acpi)
3235 toshiba_acpi = NULL;
3236
3237 kfree(dev);
3238}
3239
3240static const char *find_hci_method(acpi_handle handle)
3241{
3242 if (acpi_has_method(handle, "GHCI"))
3243 return "GHCI";
3244
3245 if (acpi_has_method(handle, "SPFC"))
3246 return "SPFC";
3247
3248 return NULL;
3249}
3250
3251/*
3252 * Some Toshibas have a broken acpi-video interface for brightness control,
3253 * these are quirked in drivers/acpi/video_detect.c to use the GPU native
3254 * (/sys/class/backlight/intel_backlight) instead.
3255 * But these need a HCI_SET call to actually turn the panel back on at resume,
3256 * without this call the screen stays black at resume.
3257 * Either HCI_LCD_BRIGHTNESS (used by acpi_video's _BCM) or HCI_PANEL_POWER_ON
3258 * works. toshiba_acpi_resume() uses HCI_PANEL_POWER_ON to avoid changing
3259 * the configured brightness level.
3260 */
3261static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
3262 {
3263 /* Toshiba Portégé R700 */
3264 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3265 .matches = {
3266 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3267 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
3268 },
3269 },
3270 {
3271 /* Toshiba Satellite/Portégé R830 */
3272 /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
3273 /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3274 .matches = {
3275 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3276 DMI_MATCH(DMI_PRODUCT_NAME, "R830"),
3277 },
3278 },
3279 {
3280 /* Toshiba Satellite/Portégé Z830 */
3281 .matches = {
3282 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3283 DMI_MATCH(DMI_PRODUCT_NAME, "Z830"),
3284 },
3285 },
3286};
3287
3288static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3289{
3290 struct toshiba_acpi_dev *dev;
3291 const char *hci_method;
3292 u32 dummy;
3293 int ret = 0;
3294
3295 if (toshiba_acpi)
3296 return -EBUSY;
3297
3298 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3299 TOSHIBA_ACPI_VERSION);
3300
3301 hci_method = find_hci_method(acpi_dev->handle);
3302 if (!hci_method) {
3303 pr_err("HCI interface not found\n");
3304 return -ENODEV;
3305 }
3306
3307 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3308 if (!dev)
3309 return -ENOMEM;
3310 dev->acpi_dev = acpi_dev;
3311 dev->method_hci = hci_method;
3312 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3313 dev->miscdev.name = "toshiba_acpi";
3314 dev->miscdev.fops = &toshiba_acpi_fops;
3315
3316 ret = misc_register(&dev->miscdev);
3317 if (ret) {
3318 pr_err("Failed to register miscdevice\n");
3319 kfree(dev);
3320 return ret;
3321 }
3322
3323 acpi_dev->driver_data = dev;
3324 dev_set_drvdata(&acpi_dev->dev, dev);
3325
3326 /* Query the BIOS for supported features */
3327
3328 /*
3329 * The "Special Functions" are always supported by the laptops
3330 * with the new keyboard layout, query for its presence to help
3331 * determine the keymap layout to use.
3332 */
3333 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3334 dev->kbd_function_keys_supported = !ret;
3335
3336 dev->hotkey_event_type = 0;
3337 if (toshiba_acpi_setup_keyboard(dev))
3338 pr_info("Unable to activate hotkeys\n");
3339
3340 /* Determine whether or not BIOS supports transflective backlight */
3341 ret = get_tr_backlight_status(dev, &dummy);
3342 dev->tr_backlight_supported = !ret;
3343
3344 ret = toshiba_acpi_setup_backlight(dev);
3345 if (ret)
3346 goto error;
3347
3348 toshiba_illumination_available(dev);
3349 if (dev->illumination_supported) {
3350 dev->led_dev.name = "toshiba::illumination";
3351 dev->led_dev.max_brightness = 1;
3352 dev->led_dev.brightness_set = toshiba_illumination_set;
3353 dev->led_dev.brightness_get = toshiba_illumination_get;
3354 led_classdev_register(&acpi_dev->dev, &dev->led_dev);
3355 }
3356
3357 toshiba_eco_mode_available(dev);
3358 if (dev->eco_supported) {
3359 dev->eco_led.name = "toshiba::eco_mode";
3360 dev->eco_led.max_brightness = 1;
3361 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3362 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3363 led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led);
3364 }
3365
3366 toshiba_kbd_illum_available(dev);
3367 /*
3368 * Only register the LED if KBD illumination is supported
3369 * and the keyboard backlight operation mode is set to FN-Z
3370 * or we detect a second gen keyboard backlight
3371 */
3372 if (dev->kbd_illum_supported &&
3373 (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3374 dev->kbd_led.name = "toshiba::kbd_backlight";
3375 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3376 dev->kbd_led.max_brightness = 1;
3377 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3378 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3379 led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led);
3380 }
3381
3382 ret = toshiba_touchpad_get(dev, &dummy);
3383 dev->touchpad_supported = !ret;
3384
3385 toshiba_accelerometer_available(dev);
3386 if (dev->accelerometer_supported) {
3387 dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev));
3388 if (!dev->indio_dev) {
3389 pr_err("Unable to allocate iio device\n");
3390 goto iio_error;
3391 }
3392
3393 pr_info("Registering Toshiba accelerometer iio device\n");
3394
3395 dev->indio_dev->info = &toshiba_iio_accel_info;
3396 dev->indio_dev->name = "Toshiba accelerometer";
3397 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3398 dev->indio_dev->channels = toshiba_iio_accel_channels;
3399 dev->indio_dev->num_channels =
3400 ARRAY_SIZE(toshiba_iio_accel_channels);
3401
3402 ret = iio_device_register(dev->indio_dev);
3403 if (ret < 0) {
3404 pr_err("Unable to register iio device\n");
3405 iio_device_free(dev->indio_dev);
3406 }
3407 }
3408iio_error:
3409
3410 toshiba_usb_sleep_charge_available(dev);
3411
3412 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3413 dev->usb_rapid_charge_supported = !ret;
3414
3415 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3416 dev->usb_sleep_music_supported = !ret;
3417
3418 ret = toshiba_panel_power_on_get(dev, &dummy);
3419 dev->panel_power_on_supported = !ret;
3420
3421 ret = toshiba_usb_three_get(dev, &dummy);
3422 dev->usb_three_supported = !ret;
3423
3424 ret = get_video_status(dev, &dummy);
3425 dev->video_supported = !ret;
3426
3427 ret = get_fan_status(dev, &dummy);
3428 dev->fan_supported = !ret;
3429
3430 ret = get_fan_rpm(dev, &dummy);
3431 dev->fan_rpm_supported = !ret;
3432
3433#if IS_ENABLED(CONFIG_HWMON)
3434 if (dev->fan_rpm_supported) {
3435 dev->hwmon_device = hwmon_device_register_with_info(
3436 &dev->acpi_dev->dev, "toshiba_acpi_sensors", NULL,
3437 &toshiba_acpi_hwmon_chip_info, NULL);
3438 if (IS_ERR(dev->hwmon_device)) {
3439 dev->hwmon_device = NULL;
3440 pr_warn("unable to register hwmon device, skipping\n");
3441 }
3442 }
3443#endif
3444
3445 if (turn_on_panel_on_resume == -1)
3446 turn_on_panel_on_resume = dmi_check_system(turn_on_panel_on_resume_dmi_ids);
3447
3448 toshiba_wwan_available(dev);
3449 if (dev->wwan_supported)
3450 toshiba_acpi_setup_wwan_rfkill(dev);
3451
3452 toshiba_cooling_method_available(dev);
3453
3454 toshiba_battery_charge_mode_available(dev);
3455
3456 print_supported_features(dev);
3457
3458 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3459 &toshiba_attr_group);
3460 if (ret) {
3461 dev->sysfs_created = 0;
3462 goto error;
3463 }
3464 dev->sysfs_created = !ret;
3465
3466 create_toshiba_proc_entries(dev);
3467
3468 toshiba_acpi = dev;
3469
3470 /*
3471 * As the battery hook relies on the static variable toshiba_acpi being
3472 * set, this must be done after toshiba_acpi is assigned.
3473 */
3474 if (dev->battery_charge_mode_supported)
3475 battery_hook_register(&battery_hook);
3476
3477 return 0;
3478
3479error:
3480 toshiba_acpi_remove(acpi_dev);
3481 return ret;
3482}
3483
3484static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3485{
3486 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3487
3488 switch (event) {
3489 case 0x80: /* Hotkeys and some system events */
3490 /*
3491 * Machines with this WMI GUID aren't supported due to bugs in
3492 * their AML.
3493 *
3494 * Return silently to avoid triggering a netlink event.
3495 */
3496 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3497 return;
3498 toshiba_acpi_process_hotkeys(dev);
3499 break;
3500 case 0x81: /* Dock events */
3501 case 0x82:
3502 case 0x83:
3503 pr_info("Dock event received %x\n", event);
3504 break;
3505 case 0x88: /* Thermal events */
3506 pr_info("Thermal event received\n");
3507 break;
3508 case 0x8f: /* LID closed */
3509 case 0x90: /* LID is closed and Dock has been ejected */
3510 break;
3511 case 0x8c: /* SATA power events */
3512 case 0x8b:
3513 pr_info("SATA power event received %x\n", event);
3514 break;
3515 case 0x92: /* Keyboard backlight mode changed */
3516 dev->kbd_event_generated = true;
3517 /* Update sysfs entries */
3518 if (sysfs_update_group(&acpi_dev->dev.kobj,
3519 &toshiba_attr_group))
3520 pr_err("Unable to update sysfs entries\n");
3521 /* Notify LED subsystem about keyboard backlight change */
3522 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3523 led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3524 (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3525 LED_FULL : LED_OFF);
3526 break;
3527 case 0x8e: /* Power button pressed */
3528 break;
3529 case 0x85: /* Unknown */
3530 case 0x8d: /* Unknown */
3531 case 0x94: /* Unknown */
3532 case 0x95: /* Unknown */
3533 default:
3534 pr_info("Unknown event received %x\n", event);
3535 break;
3536 }
3537
3538 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3539 dev_name(&acpi_dev->dev),
3540 event, (event == 0x80) ?
3541 dev->last_key_event : 0);
3542}
3543
3544#ifdef CONFIG_PM_SLEEP
3545static int toshiba_acpi_suspend(struct device *device)
3546{
3547 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3548
3549 if (dev->hotkey_dev) {
3550 u32 result;
3551
3552 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3553 if (result != TOS_SUCCESS)
3554 pr_info("Unable to disable hotkeys\n");
3555 }
3556
3557 return 0;
3558}
3559
3560static int toshiba_acpi_resume(struct device *device)
3561{
3562 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3563
3564 if (dev->hotkey_dev) {
3565 if (toshiba_acpi_enable_hotkeys(dev))
3566 pr_info("Unable to re-enable hotkeys\n");
3567 }
3568
3569 if (dev->wwan_rfk) {
3570 if (!toshiba_wireless_status(dev))
3571 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3572 }
3573
3574 if (turn_on_panel_on_resume)
3575 hci_write(dev, HCI_PANEL_POWER_ON, 1);
3576
3577 return 0;
3578}
3579#endif
3580
3581static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3582 toshiba_acpi_suspend, toshiba_acpi_resume);
3583
3584static struct acpi_driver toshiba_acpi_driver = {
3585 .name = "Toshiba ACPI driver",
3586 .owner = THIS_MODULE,
3587 .ids = toshiba_device_ids,
3588 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3589 .ops = {
3590 .add = toshiba_acpi_add,
3591 .remove = toshiba_acpi_remove,
3592 .notify = toshiba_acpi_notify,
3593 },
3594 .drv.pm = &toshiba_acpi_pm,
3595};
3596
3597static int __init toshiba_acpi_init(void)
3598{
3599 int ret;
3600
3601 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3602 if (!toshiba_proc_dir) {
3603 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3604 return -ENODEV;
3605 }
3606
3607 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3608 if (ret) {
3609 pr_err("Failed to register ACPI driver: %d\n", ret);
3610 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3611 }
3612
3613 return ret;
3614}
3615
3616static void __exit toshiba_acpi_exit(void)
3617{
3618 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3619 if (toshiba_proc_dir)
3620 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3621}
3622
3623module_init(toshiba_acpi_init);
3624module_exit(toshiba_acpi_exit);