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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, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
268 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
269 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
270 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
271 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
272 { KE_END, 0 },
273};
274
275static const struct key_entry toshiba_acpi_alt_keymap[] = {
276 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
277 { KE_KEY, 0x103, { KEY_ZOOMIN } },
278 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
279 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
280 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
281 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
282 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
283 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
284 { KE_KEY, 0x157, { KEY_MUTE } },
285 { KE_KEY, 0x158, { KEY_WLAN } },
286 { KE_END, 0 },
287};
288
289/*
290 * Utility
291 */
292
293static inline void _set_bit(u32 *word, u32 mask, int value)
294{
295 *word = (*word & ~mask) | (mask * value);
296}
297
298/*
299 * ACPI interface wrappers
300 */
301
302static int write_acpi_int(const char *methodName, int val)
303{
304 acpi_status status;
305
306 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
307 return (status == AE_OK) ? 0 : -EIO;
308}
309
310/*
311 * Perform a raw configuration call. Here we don't care about input or output
312 * buffer format.
313 */
314static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
315 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
316{
317 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
318 struct acpi_object_list params;
319 struct acpi_buffer results;
320 acpi_status status;
321 int i;
322
323 params.count = TCI_WORDS;
324 params.pointer = in_objs;
325 for (i = 0; i < TCI_WORDS; ++i) {
326 in_objs[i].type = ACPI_TYPE_INTEGER;
327 in_objs[i].integer.value = in[i];
328 }
329
330 results.length = sizeof(out_objs);
331 results.pointer = out_objs;
332
333 status = acpi_evaluate_object(dev->acpi_dev->handle,
334 (char *)dev->method_hci, ¶ms,
335 &results);
336 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
337 for (i = 0; i < out_objs->package.count; ++i)
338 out[i] = out_objs->package.elements[i].integer.value;
339 }
340
341 return status;
342}
343
344/*
345 * Common hci tasks
346 *
347 * In addition to the ACPI status, the HCI system returns a result which
348 * may be useful (such as "not supported").
349 */
350
351static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
352{
353 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
354 u32 out[TCI_WORDS];
355 acpi_status status = tci_raw(dev, in, out);
356
357 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
358}
359
360static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
361{
362 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
363 u32 out[TCI_WORDS];
364 acpi_status status = tci_raw(dev, in, out);
365
366 if (ACPI_FAILURE(status))
367 return TOS_FAILURE;
368
369 *out1 = out[2];
370
371 return out[0];
372}
373
374/*
375 * Common sci tasks
376 */
377
378static int sci_open(struct toshiba_acpi_dev *dev)
379{
380 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
381 u32 out[TCI_WORDS];
382 acpi_status status = tci_raw(dev, in, out);
383
384 if (ACPI_FAILURE(status)) {
385 pr_err("ACPI call to open SCI failed\n");
386 return 0;
387 }
388
389 if (out[0] == TOS_OPEN_CLOSE_OK) {
390 return 1;
391 } else if (out[0] == TOS_ALREADY_OPEN) {
392 pr_info("Toshiba SCI already opened\n");
393 return 1;
394 } else if (out[0] == TOS_NOT_SUPPORTED) {
395 /*
396 * Some BIOSes do not have the SCI open/close functions
397 * implemented and return 0x8000 (Not Supported), failing to
398 * register some supported features.
399 *
400 * Simply return 1 if we hit those affected laptops to make the
401 * supported features work.
402 *
403 * In the case that some laptops really do not support the SCI,
404 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
405 * and thus, not registering support for the queried feature.
406 */
407 return 1;
408 } else if (out[0] == TOS_NOT_PRESENT) {
409 pr_info("Toshiba SCI is not present\n");
410 }
411
412 return 0;
413}
414
415static void sci_close(struct toshiba_acpi_dev *dev)
416{
417 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
418 u32 out[TCI_WORDS];
419 acpi_status status = tci_raw(dev, in, out);
420
421 if (ACPI_FAILURE(status)) {
422 pr_err("ACPI call to close SCI failed\n");
423 return;
424 }
425
426 if (out[0] == TOS_OPEN_CLOSE_OK)
427 return;
428 else if (out[0] == TOS_NOT_OPENED)
429 pr_info("Toshiba SCI not opened\n");
430 else if (out[0] == TOS_NOT_PRESENT)
431 pr_info("Toshiba SCI is not present\n");
432}
433
434static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
435{
436 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
437 u32 out[TCI_WORDS];
438 acpi_status status = tci_raw(dev, in, out);
439
440 if (ACPI_FAILURE(status))
441 return TOS_FAILURE;
442
443 *out1 = out[2];
444
445 return out[0];
446}
447
448static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
449{
450 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
451 u32 out[TCI_WORDS];
452 acpi_status status = tci_raw(dev, in, out);
453
454 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
455}
456
457/* Illumination support */
458static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
459{
460 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
461 u32 out[TCI_WORDS];
462 acpi_status status;
463
464 dev->illumination_supported = 0;
465
466 if (!sci_open(dev))
467 return;
468
469 status = tci_raw(dev, in, out);
470 sci_close(dev);
471 if (ACPI_FAILURE(status)) {
472 pr_err("ACPI call to query Illumination support failed\n");
473 return;
474 }
475
476 if (out[0] != TOS_SUCCESS)
477 return;
478
479 dev->illumination_supported = 1;
480}
481
482static void toshiba_illumination_set(struct led_classdev *cdev,
483 enum led_brightness brightness)
484{
485 struct toshiba_acpi_dev *dev = container_of(cdev,
486 struct toshiba_acpi_dev, led_dev);
487 u32 result;
488 u32 state;
489
490 /* First request : initialize communication. */
491 if (!sci_open(dev))
492 return;
493
494 /* Switch the illumination on/off */
495 state = brightness ? 1 : 0;
496 result = sci_write(dev, SCI_ILLUMINATION, state);
497 sci_close(dev);
498 if (result == TOS_FAILURE)
499 pr_err("ACPI call for illumination failed\n");
500}
501
502static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
503{
504 struct toshiba_acpi_dev *dev = container_of(cdev,
505 struct toshiba_acpi_dev, led_dev);
506 u32 result;
507 u32 state;
508
509 /* First request : initialize communication. */
510 if (!sci_open(dev))
511 return LED_OFF;
512
513 /* Check the illumination */
514 result = sci_read(dev, SCI_ILLUMINATION, &state);
515 sci_close(dev);
516 if (result == TOS_FAILURE) {
517 pr_err("ACPI call for illumination failed\n");
518 return LED_OFF;
519 } else if (result != TOS_SUCCESS) {
520 return LED_OFF;
521 }
522
523 return state ? LED_FULL : LED_OFF;
524}
525
526/* KBD Illumination */
527static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
528{
529 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
530 u32 out[TCI_WORDS];
531 acpi_status status;
532
533 dev->kbd_illum_supported = 0;
534 dev->kbd_event_generated = false;
535
536 if (!sci_open(dev))
537 return;
538
539 status = tci_raw(dev, in, out);
540 sci_close(dev);
541 if (ACPI_FAILURE(status)) {
542 pr_err("ACPI call to query kbd illumination support failed\n");
543 return;
544 }
545
546 if (out[0] != TOS_SUCCESS)
547 return;
548
549 /*
550 * Check for keyboard backlight timeout max value,
551 * previous kbd backlight implementation set this to
552 * 0x3c0003, and now the new implementation set this
553 * to 0x3c001a, use this to distinguish between them.
554 */
555 if (out[3] == SCI_KBD_TIME_MAX)
556 dev->kbd_type = 2;
557 else
558 dev->kbd_type = 1;
559 /* Get the current keyboard backlight mode */
560 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
561 /* Get the current time (1-60 seconds) */
562 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
563 /* Flag as supported */
564 dev->kbd_illum_supported = 1;
565}
566
567static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
568{
569 u32 result;
570
571 if (!sci_open(dev))
572 return -EIO;
573
574 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
575 sci_close(dev);
576 if (result == TOS_FAILURE)
577 pr_err("ACPI call to set KBD backlight status failed\n");
578 else if (result == TOS_NOT_SUPPORTED)
579 return -ENODEV;
580
581 return result == TOS_SUCCESS ? 0 : -EIO;
582}
583
584static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
585{
586 u32 result;
587
588 if (!sci_open(dev))
589 return -EIO;
590
591 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
592 sci_close(dev);
593 if (result == TOS_FAILURE)
594 pr_err("ACPI call to get KBD backlight status failed\n");
595 else if (result == TOS_NOT_SUPPORTED)
596 return -ENODEV;
597
598 return result == TOS_SUCCESS ? 0 : -EIO;
599}
600
601static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
602{
603 struct toshiba_acpi_dev *dev = container_of(cdev,
604 struct toshiba_acpi_dev, kbd_led);
605 u32 result;
606 u32 state;
607
608 /* Check the keyboard backlight state */
609 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
610 if (result == TOS_FAILURE) {
611 pr_err("ACPI call to get the keyboard backlight failed\n");
612 return LED_OFF;
613 } else if (result != TOS_SUCCESS) {
614 return LED_OFF;
615 }
616
617 return state ? LED_FULL : LED_OFF;
618}
619
620static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
621 enum led_brightness brightness)
622{
623 struct toshiba_acpi_dev *dev = container_of(cdev,
624 struct toshiba_acpi_dev, kbd_led);
625 u32 result;
626 u32 state;
627
628 /* Set the keyboard backlight state */
629 state = brightness ? 1 : 0;
630 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
631 if (result == TOS_FAILURE)
632 pr_err("ACPI call to set KBD Illumination mode failed\n");
633}
634
635/* TouchPad support */
636static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
637{
638 u32 result;
639
640 if (!sci_open(dev))
641 return -EIO;
642
643 result = sci_write(dev, SCI_TOUCHPAD, state);
644 sci_close(dev);
645 if (result == TOS_FAILURE)
646 pr_err("ACPI call to set the touchpad failed\n");
647 else if (result == TOS_NOT_SUPPORTED)
648 return -ENODEV;
649
650 return result == TOS_SUCCESS ? 0 : -EIO;
651}
652
653static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
654{
655 u32 result;
656
657 if (!sci_open(dev))
658 return -EIO;
659
660 result = sci_read(dev, SCI_TOUCHPAD, state);
661 sci_close(dev);
662 if (result == TOS_FAILURE)
663 pr_err("ACPI call to query the touchpad failed\n");
664 else if (result == TOS_NOT_SUPPORTED)
665 return -ENODEV;
666
667 return result == TOS_SUCCESS ? 0 : -EIO;
668}
669
670/* Eco Mode support */
671static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
672{
673 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
674 u32 out[TCI_WORDS];
675 acpi_status status;
676
677 dev->eco_supported = 0;
678
679 status = tci_raw(dev, in, out);
680 if (ACPI_FAILURE(status)) {
681 pr_err("ACPI call to get ECO led failed\n");
682 return;
683 }
684
685 if (out[0] == TOS_INPUT_DATA_ERROR || out[0] == TOS_NOT_SUPPORTED) {
686 /*
687 * If we receive 0x8300 (Input Data Error), it means that the
688 * LED device is present, but that we just screwed the input
689 * parameters.
690 *
691 * On some laptops 0x8000 (Not supported) is also returned in
692 * this case, so we need to allow for that as well.
693 *
694 * Let's query the status of the LED to see if we really have a
695 * success response, indicating the actual presense of the LED,
696 * bail out otherwise.
697 */
698 in[3] = 1;
699 status = tci_raw(dev, in, out);
700 if (ACPI_FAILURE(status)) {
701 pr_err("ACPI call to get ECO led failed\n");
702 return;
703 }
704
705 if (out[0] != TOS_SUCCESS)
706 return;
707
708 dev->eco_supported = 1;
709 }
710}
711
712static enum led_brightness
713toshiba_eco_mode_get_status(struct led_classdev *cdev)
714{
715 struct toshiba_acpi_dev *dev = container_of(cdev,
716 struct toshiba_acpi_dev, eco_led);
717 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
718 u32 out[TCI_WORDS];
719 acpi_status status;
720
721 status = tci_raw(dev, in, out);
722 if (ACPI_FAILURE(status)) {
723 pr_err("ACPI call to get ECO led failed\n");
724 return LED_OFF;
725 }
726
727 if (out[0] != TOS_SUCCESS)
728 return LED_OFF;
729
730 return out[2] ? LED_FULL : LED_OFF;
731}
732
733static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
734 enum led_brightness brightness)
735{
736 struct toshiba_acpi_dev *dev = container_of(cdev,
737 struct toshiba_acpi_dev, eco_led);
738 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
739 u32 out[TCI_WORDS];
740 acpi_status status;
741
742 /* Switch the Eco Mode led on/off */
743 in[2] = (brightness) ? 1 : 0;
744 status = tci_raw(dev, in, out);
745 if (ACPI_FAILURE(status))
746 pr_err("ACPI call to set ECO led failed\n");
747}
748
749/* Accelerometer support */
750static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
751{
752 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
753 u32 out[TCI_WORDS];
754 acpi_status status;
755
756 dev->accelerometer_supported = 0;
757
758 /*
759 * Check if the accelerometer call exists,
760 * this call also serves as initialization
761 */
762 status = tci_raw(dev, in, out);
763 if (ACPI_FAILURE(status)) {
764 pr_err("ACPI call to query the accelerometer failed\n");
765 return;
766 }
767
768 if (out[0] != TOS_SUCCESS)
769 return;
770
771 dev->accelerometer_supported = 1;
772}
773
774static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
775 u32 *xy, u32 *z)
776{
777 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
778 u32 out[TCI_WORDS];
779 acpi_status status;
780
781 /* Check the Accelerometer status */
782 status = tci_raw(dev, in, out);
783 if (ACPI_FAILURE(status)) {
784 pr_err("ACPI call to query the accelerometer failed\n");
785 return -EIO;
786 }
787
788 if (out[0] == TOS_NOT_SUPPORTED)
789 return -ENODEV;
790
791 if (out[0] != TOS_SUCCESS)
792 return -EIO;
793
794 *xy = out[2];
795 *z = out[4];
796
797 return 0;
798}
799
800/* Sleep (Charge and Music) utilities support */
801static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
802{
803 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
804 u32 out[TCI_WORDS];
805 acpi_status status;
806
807 dev->usb_sleep_charge_supported = 0;
808
809 if (!sci_open(dev))
810 return;
811
812 status = tci_raw(dev, in, out);
813 if (ACPI_FAILURE(status)) {
814 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
815 sci_close(dev);
816 return;
817 }
818
819 if (out[0] != TOS_SUCCESS) {
820 sci_close(dev);
821 return;
822 }
823
824 dev->usbsc_mode_base = out[4];
825
826 in[5] = SCI_USB_CHARGE_BAT_LVL;
827 status = tci_raw(dev, in, out);
828 sci_close(dev);
829 if (ACPI_FAILURE(status)) {
830 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
831 return;
832 }
833
834 if (out[0] != TOS_SUCCESS)
835 return;
836
837 dev->usbsc_bat_level = out[2];
838 /* Flag as supported */
839 dev->usb_sleep_charge_supported = 1;
840}
841
842static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
843 u32 *mode)
844{
845 u32 result;
846
847 if (!sci_open(dev))
848 return -EIO;
849
850 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
851 sci_close(dev);
852 if (result == TOS_FAILURE)
853 pr_err("ACPI call to set USB S&C mode failed\n");
854 else if (result == TOS_NOT_SUPPORTED)
855 return -ENODEV;
856
857 return result == TOS_SUCCESS ? 0 : -EIO;
858}
859
860static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
861 u32 mode)
862{
863 u32 result;
864
865 if (!sci_open(dev))
866 return -EIO;
867
868 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
869 sci_close(dev);
870 if (result == TOS_FAILURE)
871 pr_err("ACPI call to set USB S&C mode failed\n");
872 else if (result == TOS_NOT_SUPPORTED)
873 return -ENODEV;
874
875 return result == TOS_SUCCESS ? 0 : -EIO;
876}
877
878static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
879 u32 *mode)
880{
881 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
882 u32 out[TCI_WORDS];
883 acpi_status status;
884
885 if (!sci_open(dev))
886 return -EIO;
887
888 in[5] = SCI_USB_CHARGE_BAT_LVL;
889 status = tci_raw(dev, in, out);
890 sci_close(dev);
891 if (ACPI_FAILURE(status)) {
892 pr_err("ACPI call to get USB S&C battery level failed\n");
893 return -EIO;
894 }
895
896 if (out[0] == TOS_NOT_SUPPORTED)
897 return -ENODEV;
898
899 if (out[0] != TOS_SUCCESS)
900 return -EIO;
901
902 *mode = out[2];
903
904 return 0;
905
906}
907
908static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
909 u32 mode)
910{
911 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
912 u32 out[TCI_WORDS];
913 acpi_status status;
914
915 if (!sci_open(dev))
916 return -EIO;
917
918 in[2] = mode;
919 in[5] = SCI_USB_CHARGE_BAT_LVL;
920 status = tci_raw(dev, in, out);
921 sci_close(dev);
922 if (ACPI_FAILURE(status)) {
923 pr_err("ACPI call to set USB S&C battery level failed\n");
924 return -EIO;
925 }
926
927 if (out[0] == TOS_NOT_SUPPORTED)
928 return -ENODEV;
929
930 return out[0] == TOS_SUCCESS ? 0 : -EIO;
931}
932
933static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
934 u32 *state)
935{
936 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
937 u32 out[TCI_WORDS];
938 acpi_status status;
939
940 if (!sci_open(dev))
941 return -EIO;
942
943 in[5] = SCI_USB_CHARGE_RAPID_DSP;
944 status = tci_raw(dev, in, out);
945 sci_close(dev);
946 if (ACPI_FAILURE(status)) {
947 pr_err("ACPI call to get USB Rapid Charge failed\n");
948 return -EIO;
949 }
950
951 if (out[0] == TOS_NOT_SUPPORTED)
952 return -ENODEV;
953
954 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
955 return -EIO;
956
957 *state = out[2];
958
959 return 0;
960}
961
962static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
963 u32 state)
964{
965 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
966 u32 out[TCI_WORDS];
967 acpi_status status;
968
969 if (!sci_open(dev))
970 return -EIO;
971
972 in[2] = state;
973 in[5] = SCI_USB_CHARGE_RAPID_DSP;
974 status = tci_raw(dev, in, out);
975 sci_close(dev);
976 if (ACPI_FAILURE(status)) {
977 pr_err("ACPI call to set USB Rapid Charge failed\n");
978 return -EIO;
979 }
980
981 if (out[0] == TOS_NOT_SUPPORTED)
982 return -ENODEV;
983
984 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
985}
986
987static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
988{
989 u32 result;
990
991 if (!sci_open(dev))
992 return -EIO;
993
994 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
995 sci_close(dev);
996 if (result == TOS_FAILURE)
997 pr_err("ACPI call to get Sleep and Music failed\n");
998 else if (result == TOS_NOT_SUPPORTED)
999 return -ENODEV;
1000
1001 return result == TOS_SUCCESS ? 0 : -EIO;
1002}
1003
1004static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1005{
1006 u32 result;
1007
1008 if (!sci_open(dev))
1009 return -EIO;
1010
1011 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1012 sci_close(dev);
1013 if (result == TOS_FAILURE)
1014 pr_err("ACPI call to set Sleep and Music failed\n");
1015 else if (result == TOS_NOT_SUPPORTED)
1016 return -ENODEV;
1017
1018 return result == TOS_SUCCESS ? 0 : -EIO;
1019}
1020
1021/* Keyboard function keys */
1022static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1023{
1024 u32 result;
1025
1026 if (!sci_open(dev))
1027 return -EIO;
1028
1029 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1030 sci_close(dev);
1031 if (result == TOS_FAILURE)
1032 pr_err("ACPI call to get KBD function keys failed\n");
1033 else if (result == TOS_NOT_SUPPORTED)
1034 return -ENODEV;
1035
1036 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1037}
1038
1039static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1040{
1041 u32 result;
1042
1043 if (!sci_open(dev))
1044 return -EIO;
1045
1046 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1047 sci_close(dev);
1048 if (result == TOS_FAILURE)
1049 pr_err("ACPI call to set KBD function keys failed\n");
1050 else if (result == TOS_NOT_SUPPORTED)
1051 return -ENODEV;
1052
1053 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1054}
1055
1056/* Panel Power ON */
1057static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1058{
1059 u32 result;
1060
1061 if (!sci_open(dev))
1062 return -EIO;
1063
1064 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1065 sci_close(dev);
1066 if (result == TOS_FAILURE)
1067 pr_err("ACPI call to get Panel Power ON failed\n");
1068 else if (result == TOS_NOT_SUPPORTED)
1069 return -ENODEV;
1070
1071 return result == TOS_SUCCESS ? 0 : -EIO;
1072}
1073
1074static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1075{
1076 u32 result;
1077
1078 if (!sci_open(dev))
1079 return -EIO;
1080
1081 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1082 sci_close(dev);
1083 if (result == TOS_FAILURE)
1084 pr_err("ACPI call to set Panel Power ON failed\n");
1085 else if (result == TOS_NOT_SUPPORTED)
1086 return -ENODEV;
1087
1088 return result == TOS_SUCCESS ? 0 : -EIO;
1089}
1090
1091/* USB Three */
1092static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1093{
1094 u32 result;
1095
1096 if (!sci_open(dev))
1097 return -EIO;
1098
1099 result = sci_read(dev, SCI_USB_THREE, state);
1100 sci_close(dev);
1101 if (result == TOS_FAILURE)
1102 pr_err("ACPI call to get USB 3 failed\n");
1103 else if (result == TOS_NOT_SUPPORTED)
1104 return -ENODEV;
1105
1106 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1107}
1108
1109static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1110{
1111 u32 result;
1112
1113 if (!sci_open(dev))
1114 return -EIO;
1115
1116 result = sci_write(dev, SCI_USB_THREE, state);
1117 sci_close(dev);
1118 if (result == TOS_FAILURE)
1119 pr_err("ACPI call to set USB 3 failed\n");
1120 else if (result == TOS_NOT_SUPPORTED)
1121 return -ENODEV;
1122
1123 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1124}
1125
1126/* Hotkey Event type */
1127static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1128 u32 *type)
1129{
1130 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1131 u32 out[TCI_WORDS];
1132 acpi_status status;
1133
1134 status = tci_raw(dev, in, out);
1135 if (ACPI_FAILURE(status)) {
1136 pr_err("ACPI call to get System type failed\n");
1137 return -EIO;
1138 }
1139
1140 if (out[0] == TOS_NOT_SUPPORTED)
1141 return -ENODEV;
1142
1143 if (out[0] != TOS_SUCCESS)
1144 return -EIO;
1145
1146 *type = out[3];
1147
1148 return 0;
1149}
1150
1151/* Wireless status (RFKill, WLAN, BT, WWAN) */
1152static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1153{
1154 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1155 u32 out[TCI_WORDS];
1156 acpi_status status;
1157
1158 in[3] = HCI_WIRELESS_STATUS;
1159 status = tci_raw(dev, in, out);
1160
1161 if (ACPI_FAILURE(status)) {
1162 pr_err("ACPI call to get Wireless status failed\n");
1163 return -EIO;
1164 }
1165
1166 if (out[0] == TOS_NOT_SUPPORTED)
1167 return -ENODEV;
1168
1169 if (out[0] != TOS_SUCCESS)
1170 return -EIO;
1171
1172 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1173
1174 return 0;
1175}
1176
1177/* WWAN */
1178static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1179{
1180 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1181 u32 out[TCI_WORDS];
1182 acpi_status status;
1183
1184 dev->wwan_supported = 0;
1185
1186 /*
1187 * WWAN support can be queried by setting the in[3] value to
1188 * HCI_WIRELESS_WWAN (0x03).
1189 *
1190 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1191 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1192 *
1193 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1194 * or TOS_NOT_SUPPORTED (0x8000).
1195 */
1196 in[3] = HCI_WIRELESS_WWAN;
1197 status = tci_raw(dev, in, out);
1198 if (ACPI_FAILURE(status)) {
1199 pr_err("ACPI call to get WWAN status failed\n");
1200 return;
1201 }
1202
1203 if (out[0] != TOS_SUCCESS)
1204 return;
1205
1206 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1207}
1208
1209static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1210{
1211 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1212 u32 out[TCI_WORDS];
1213 acpi_status status;
1214
1215 in[3] = HCI_WIRELESS_WWAN_STATUS;
1216 status = tci_raw(dev, in, out);
1217 if (ACPI_FAILURE(status)) {
1218 pr_err("ACPI call to set WWAN status failed\n");
1219 return -EIO;
1220 }
1221
1222 if (out[0] == TOS_NOT_SUPPORTED)
1223 return -ENODEV;
1224
1225 if (out[0] != TOS_SUCCESS)
1226 return -EIO;
1227
1228 /*
1229 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1230 * (de)activate the device, but some others need the
1231 * HCI_WIRELESS_WWAN_POWER call as well.
1232 */
1233 in[3] = HCI_WIRELESS_WWAN_POWER;
1234 status = tci_raw(dev, in, out);
1235 if (ACPI_FAILURE(status)) {
1236 pr_err("ACPI call to set WWAN power failed\n");
1237 return -EIO;
1238 }
1239
1240 if (out[0] == TOS_NOT_SUPPORTED)
1241 return -ENODEV;
1242
1243 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1244}
1245
1246/* Cooling Method */
1247static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1248{
1249 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1250 u32 out[TCI_WORDS];
1251 acpi_status status;
1252
1253 dev->cooling_method_supported = 0;
1254 dev->max_cooling_method = 0;
1255
1256 status = tci_raw(dev, in, out);
1257 if (ACPI_FAILURE(status)) {
1258 pr_err("ACPI call to get Cooling Method failed\n");
1259 return;
1260 }
1261
1262 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1263 return;
1264
1265 dev->cooling_method_supported = 1;
1266 dev->max_cooling_method = out[3];
1267}
1268
1269static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1270{
1271 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1272
1273 if (result == TOS_FAILURE)
1274 pr_err("ACPI call to get Cooling Method failed\n");
1275
1276 if (result == TOS_NOT_SUPPORTED)
1277 return -ENODEV;
1278
1279 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1280}
1281
1282static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1283{
1284 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1285
1286 if (result == TOS_FAILURE)
1287 pr_err("ACPI call to set Cooling Method failed\n");
1288
1289 if (result == TOS_NOT_SUPPORTED)
1290 return -ENODEV;
1291
1292 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1293}
1294
1295/* Battery charge control */
1296static void toshiba_battery_charge_mode_available(struct toshiba_acpi_dev *dev)
1297{
1298 u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0 };
1299 u32 out[TCI_WORDS];
1300 acpi_status status;
1301
1302 dev->battery_charge_mode_supported = 0;
1303
1304 status = tci_raw(dev, in, out);
1305 if (ACPI_FAILURE(status)) {
1306 pr_err("ACPI call to get Battery Charge Mode failed\n");
1307 return;
1308 }
1309
1310 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1311 return;
1312
1313 dev->battery_charge_mode_supported = 1;
1314}
1315
1316static int toshiba_battery_charge_mode_get(struct toshiba_acpi_dev *dev, u32 *state)
1317{
1318 u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0x1 };
1319 u32 out[TCI_WORDS];
1320 int retries = 3;
1321
1322 do {
1323 acpi_status status = tci_raw(dev, in, out);
1324
1325 if (ACPI_FAILURE(status))
1326 pr_err("ACPI call to get Battery Charge Mode failed\n");
1327 switch (out[0]) {
1328 case TOS_SUCCESS:
1329 case TOS_SUCCESS2:
1330 *state = out[2];
1331 return 0;
1332 case TOS_NOT_SUPPORTED:
1333 return -ENODEV;
1334 case TOS_DATA_NOT_AVAILABLE:
1335 retries--;
1336 break;
1337 default:
1338 return -EIO;
1339 }
1340 } while (retries);
1341
1342 return -EIO;
1343}
1344
1345static int toshiba_battery_charge_mode_set(struct toshiba_acpi_dev *dev, u32 state)
1346{
1347 u32 result = hci_write(dev, HCI_BATTERY_CHARGE_MODE, state);
1348
1349 if (result == TOS_FAILURE)
1350 pr_err("ACPI call to set Battery Charge Mode failed\n");
1351
1352 if (result == TOS_NOT_SUPPORTED)
1353 return -ENODEV;
1354
1355 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1356}
1357
1358/* Transflective Backlight */
1359static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1360{
1361 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1362
1363 if (result == TOS_FAILURE)
1364 pr_err("ACPI call to get Transflective Backlight failed\n");
1365 else if (result == TOS_NOT_SUPPORTED)
1366 return -ENODEV;
1367
1368 return result == TOS_SUCCESS ? 0 : -EIO;
1369}
1370
1371static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1372{
1373 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1374
1375 if (result == TOS_FAILURE)
1376 pr_err("ACPI call to set Transflective Backlight failed\n");
1377 else if (result == TOS_NOT_SUPPORTED)
1378 return -ENODEV;
1379
1380 return result == TOS_SUCCESS ? 0 : -EIO;
1381}
1382
1383static struct proc_dir_entry *toshiba_proc_dir;
1384
1385/* LCD Brightness */
1386static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1387{
1388 int brightness = 0;
1389 u32 result;
1390 u32 value;
1391
1392 if (dev->tr_backlight_supported) {
1393 int ret = get_tr_backlight_status(dev, &value);
1394
1395 if (ret)
1396 return ret;
1397 if (value)
1398 return 0;
1399 brightness++;
1400 }
1401
1402 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1403 if (result == TOS_FAILURE)
1404 pr_err("ACPI call to get LCD Brightness failed\n");
1405 else if (result == TOS_NOT_SUPPORTED)
1406 return -ENODEV;
1407
1408 return result == TOS_SUCCESS ?
1409 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1410 -EIO;
1411}
1412
1413static int get_lcd_brightness(struct backlight_device *bd)
1414{
1415 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1416
1417 return __get_lcd_brightness(dev);
1418}
1419
1420static int lcd_proc_show(struct seq_file *m, void *v)
1421{
1422 struct toshiba_acpi_dev *dev = m->private;
1423 int levels;
1424 int value;
1425
1426 if (!dev->backlight_dev)
1427 return -ENODEV;
1428
1429 levels = dev->backlight_dev->props.max_brightness + 1;
1430 value = get_lcd_brightness(dev->backlight_dev);
1431 if (value < 0) {
1432 pr_err("Error reading LCD brightness\n");
1433 return value;
1434 }
1435
1436 seq_printf(m, "brightness: %d\n", value);
1437 seq_printf(m, "brightness_levels: %d\n", levels);
1438
1439 return 0;
1440}
1441
1442static int lcd_proc_open(struct inode *inode, struct file *file)
1443{
1444 return single_open(file, lcd_proc_show, pde_data(inode));
1445}
1446
1447static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1448{
1449 u32 result;
1450
1451 if (dev->tr_backlight_supported) {
1452 int ret = set_tr_backlight_status(dev, !value);
1453
1454 if (ret)
1455 return ret;
1456 if (value)
1457 value--;
1458 }
1459
1460 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1461 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1462 if (result == TOS_FAILURE)
1463 pr_err("ACPI call to set LCD Brightness failed\n");
1464 else if (result == TOS_NOT_SUPPORTED)
1465 return -ENODEV;
1466
1467 return result == TOS_SUCCESS ? 0 : -EIO;
1468}
1469
1470static int set_lcd_status(struct backlight_device *bd)
1471{
1472 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1473
1474 return set_lcd_brightness(dev, bd->props.brightness);
1475}
1476
1477static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1478 size_t count, loff_t *pos)
1479{
1480 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1481 char cmd[42];
1482 size_t len;
1483 int levels;
1484 int value;
1485
1486 len = min(count, sizeof(cmd) - 1);
1487 if (copy_from_user(cmd, buf, len))
1488 return -EFAULT;
1489 cmd[len] = '\0';
1490
1491 levels = dev->backlight_dev->props.max_brightness + 1;
1492 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1493 value < 0 && value > levels)
1494 return -EINVAL;
1495
1496 if (set_lcd_brightness(dev, value))
1497 return -EIO;
1498
1499 return count;
1500}
1501
1502static const struct proc_ops lcd_proc_ops = {
1503 .proc_open = lcd_proc_open,
1504 .proc_read = seq_read,
1505 .proc_lseek = seq_lseek,
1506 .proc_release = single_release,
1507 .proc_write = lcd_proc_write,
1508};
1509
1510/* Video-Out */
1511static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1512{
1513 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1514
1515 if (result == TOS_FAILURE)
1516 pr_err("ACPI call to get Video-Out failed\n");
1517 else if (result == TOS_NOT_SUPPORTED)
1518 return -ENODEV;
1519
1520 return result == TOS_SUCCESS ? 0 : -EIO;
1521}
1522
1523static int video_proc_show(struct seq_file *m, void *v)
1524{
1525 struct toshiba_acpi_dev *dev = m->private;
1526 int is_lcd, is_crt, is_tv;
1527 u32 value;
1528
1529 if (get_video_status(dev, &value))
1530 return -EIO;
1531
1532 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1533 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1534 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1535
1536 seq_printf(m, "lcd_out: %d\n", is_lcd);
1537 seq_printf(m, "crt_out: %d\n", is_crt);
1538 seq_printf(m, "tv_out: %d\n", is_tv);
1539
1540 return 0;
1541}
1542
1543static int video_proc_open(struct inode *inode, struct file *file)
1544{
1545 return single_open(file, video_proc_show, pde_data(inode));
1546}
1547
1548static ssize_t video_proc_write(struct file *file, const char __user *buf,
1549 size_t count, loff_t *pos)
1550{
1551 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1552 char *buffer;
1553 char *cmd;
1554 int lcd_out = -1, crt_out = -1, tv_out = -1;
1555 int remain = count;
1556 int value;
1557 int ret;
1558 u32 video_out;
1559
1560 cmd = memdup_user_nul(buf, count);
1561 if (IS_ERR(cmd))
1562 return PTR_ERR(cmd);
1563
1564 buffer = cmd;
1565
1566 /*
1567 * Scan expression. Multiple expressions may be delimited with ;
1568 * NOTE: To keep scanning simple, invalid fields are ignored.
1569 */
1570 while (remain) {
1571 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1572 lcd_out = value & 1;
1573 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1574 crt_out = value & 1;
1575 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1576 tv_out = value & 1;
1577 /* Advance to one character past the next ; */
1578 do {
1579 ++buffer;
1580 --remain;
1581 } while (remain && *(buffer - 1) != ';');
1582 }
1583
1584 kfree(cmd);
1585
1586 ret = get_video_status(dev, &video_out);
1587 if (!ret) {
1588 unsigned int new_video_out = video_out;
1589
1590 if (lcd_out != -1)
1591 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1592 if (crt_out != -1)
1593 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1594 if (tv_out != -1)
1595 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1596 /*
1597 * To avoid unnecessary video disruption, only write the new
1598 * video setting if something changed.
1599 */
1600 if (new_video_out != video_out)
1601 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1602 }
1603
1604 return ret ? -EIO : count;
1605}
1606
1607static const struct proc_ops video_proc_ops = {
1608 .proc_open = video_proc_open,
1609 .proc_read = seq_read,
1610 .proc_lseek = seq_lseek,
1611 .proc_release = single_release,
1612 .proc_write = video_proc_write,
1613};
1614
1615/* Fan status */
1616static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1617{
1618 u32 result = hci_read(dev, HCI_FAN, status);
1619
1620 if (result == TOS_FAILURE)
1621 pr_err("ACPI call to get Fan status failed\n");
1622 else if (result == TOS_NOT_SUPPORTED)
1623 return -ENODEV;
1624
1625 return result == TOS_SUCCESS ? 0 : -EIO;
1626}
1627
1628static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1629{
1630 u32 result = hci_write(dev, HCI_FAN, status);
1631
1632 if (result == TOS_FAILURE)
1633 pr_err("ACPI call to set Fan status failed\n");
1634 else if (result == TOS_NOT_SUPPORTED)
1635 return -ENODEV;
1636
1637 return result == TOS_SUCCESS ? 0 : -EIO;
1638}
1639
1640static int fan_proc_show(struct seq_file *m, void *v)
1641{
1642 struct toshiba_acpi_dev *dev = m->private;
1643 u32 value;
1644
1645 if (get_fan_status(dev, &value))
1646 return -EIO;
1647
1648 seq_printf(m, "running: %d\n", (value > 0));
1649 seq_printf(m, "force_on: %d\n", dev->force_fan);
1650
1651 return 0;
1652}
1653
1654static int fan_proc_open(struct inode *inode, struct file *file)
1655{
1656 return single_open(file, fan_proc_show, pde_data(inode));
1657}
1658
1659static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1660 size_t count, loff_t *pos)
1661{
1662 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1663 char cmd[42];
1664 size_t len;
1665 int value;
1666
1667 len = min(count, sizeof(cmd) - 1);
1668 if (copy_from_user(cmd, buf, len))
1669 return -EFAULT;
1670 cmd[len] = '\0';
1671
1672 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1673 value != 0 && value != 1)
1674 return -EINVAL;
1675
1676 if (set_fan_status(dev, value))
1677 return -EIO;
1678
1679 dev->force_fan = value;
1680
1681 return count;
1682}
1683
1684static const struct proc_ops fan_proc_ops = {
1685 .proc_open = fan_proc_open,
1686 .proc_read = seq_read,
1687 .proc_lseek = seq_lseek,
1688 .proc_release = single_release,
1689 .proc_write = fan_proc_write,
1690};
1691
1692/* Fan RPM */
1693static int get_fan_rpm(struct toshiba_acpi_dev *dev, u32 *rpm)
1694{
1695 u32 in[TCI_WORDS] = { HCI_GET, HCI_FAN_RPM, 0, 1, 0, 0 };
1696 u32 out[TCI_WORDS];
1697 acpi_status status = tci_raw(dev, in, out);
1698
1699 if (ACPI_FAILURE(status)) {
1700 pr_err("ACPI call to get Fan speed failed\n");
1701 return -EIO;
1702 }
1703
1704 if (out[0] == TOS_NOT_SUPPORTED)
1705 return -ENODEV;
1706
1707 if (out[0] == TOS_SUCCESS) {
1708 *rpm = out[2];
1709 return 0;
1710 }
1711
1712 return -EIO;
1713}
1714
1715static int keys_proc_show(struct seq_file *m, void *v)
1716{
1717 struct toshiba_acpi_dev *dev = m->private;
1718
1719 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1720 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1721
1722 return 0;
1723}
1724
1725static int keys_proc_open(struct inode *inode, struct file *file)
1726{
1727 return single_open(file, keys_proc_show, pde_data(inode));
1728}
1729
1730static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1731 size_t count, loff_t *pos)
1732{
1733 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1734 char cmd[42];
1735 size_t len;
1736 int value;
1737
1738 len = min(count, sizeof(cmd) - 1);
1739 if (copy_from_user(cmd, buf, len))
1740 return -EFAULT;
1741 cmd[len] = '\0';
1742
1743 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1744 dev->key_event_valid = 0;
1745 else
1746 return -EINVAL;
1747
1748 return count;
1749}
1750
1751static const struct proc_ops keys_proc_ops = {
1752 .proc_open = keys_proc_open,
1753 .proc_read = seq_read,
1754 .proc_lseek = seq_lseek,
1755 .proc_release = single_release,
1756 .proc_write = keys_proc_write,
1757};
1758
1759static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1760{
1761 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1762 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1763 return 0;
1764}
1765
1766/*
1767 * Proc and module init
1768 */
1769
1770#define PROC_TOSHIBA "toshiba"
1771
1772static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1773{
1774 if (dev->backlight_dev)
1775 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1776 &lcd_proc_ops, dev);
1777 if (dev->video_supported)
1778 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1779 &video_proc_ops, dev);
1780 if (dev->fan_supported)
1781 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1782 &fan_proc_ops, dev);
1783 if (dev->hotkey_dev)
1784 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1785 &keys_proc_ops, dev);
1786 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1787 version_proc_show, dev);
1788}
1789
1790static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1791{
1792 if (dev->backlight_dev)
1793 remove_proc_entry("lcd", toshiba_proc_dir);
1794 if (dev->video_supported)
1795 remove_proc_entry("video", toshiba_proc_dir);
1796 if (dev->fan_supported)
1797 remove_proc_entry("fan", toshiba_proc_dir);
1798 if (dev->hotkey_dev)
1799 remove_proc_entry("keys", toshiba_proc_dir);
1800 remove_proc_entry("version", toshiba_proc_dir);
1801}
1802
1803static const struct backlight_ops toshiba_backlight_data = {
1804 .options = BL_CORE_SUSPENDRESUME,
1805 .get_brightness = get_lcd_brightness,
1806 .update_status = set_lcd_status,
1807};
1808
1809/* Keyboard backlight work */
1810static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1811
1812static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1813
1814/*
1815 * Sysfs files
1816 */
1817static ssize_t version_show(struct device *dev,
1818 struct device_attribute *attr, char *buf)
1819{
1820 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1821}
1822static DEVICE_ATTR_RO(version);
1823
1824static ssize_t fan_store(struct device *dev,
1825 struct device_attribute *attr,
1826 const char *buf, size_t count)
1827{
1828 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1829 int state;
1830 int ret;
1831
1832 ret = kstrtoint(buf, 0, &state);
1833 if (ret)
1834 return ret;
1835
1836 if (state != 0 && state != 1)
1837 return -EINVAL;
1838
1839 ret = set_fan_status(toshiba, state);
1840 if (ret)
1841 return ret;
1842
1843 return count;
1844}
1845
1846static ssize_t fan_show(struct device *dev,
1847 struct device_attribute *attr, char *buf)
1848{
1849 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1850 u32 value;
1851 int ret;
1852
1853 ret = get_fan_status(toshiba, &value);
1854 if (ret)
1855 return ret;
1856
1857 return sprintf(buf, "%d\n", value);
1858}
1859static DEVICE_ATTR_RW(fan);
1860
1861static ssize_t kbd_backlight_mode_store(struct device *dev,
1862 struct device_attribute *attr,
1863 const char *buf, size_t count)
1864{
1865 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1866 int mode;
1867 int ret;
1868
1869
1870 ret = kstrtoint(buf, 0, &mode);
1871 if (ret)
1872 return ret;
1873
1874 /* Check for supported modes depending on keyboard backlight type */
1875 if (toshiba->kbd_type == 1) {
1876 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1877 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1878 return -EINVAL;
1879 } else if (toshiba->kbd_type == 2) {
1880 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1881 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1882 mode != SCI_KBD_MODE_OFF)
1883 return -EINVAL;
1884 }
1885
1886 /*
1887 * Set the Keyboard Backlight Mode where:
1888 * Auto - KBD backlight turns off automatically in given time
1889 * FN-Z - KBD backlight "toggles" when hotkey pressed
1890 * ON - KBD backlight is always on
1891 * OFF - KBD backlight is always off
1892 */
1893
1894 /* Only make a change if the actual mode has changed */
1895 if (toshiba->kbd_mode != mode) {
1896 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1897 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1898
1899 /* OR the "base time" to the actual method format */
1900 if (toshiba->kbd_type == 1) {
1901 /* Type 1 requires the current mode */
1902 time |= toshiba->kbd_mode;
1903 } else if (toshiba->kbd_type == 2) {
1904 /* Type 2 requires the desired mode */
1905 time |= mode;
1906 }
1907
1908 ret = toshiba_kbd_illum_status_set(toshiba, time);
1909 if (ret)
1910 return ret;
1911
1912 toshiba->kbd_mode = mode;
1913 toshiba_acpi->kbd_mode = mode;
1914
1915 /*
1916 * Some laptop models with the second generation backlit
1917 * keyboard (type 2) do not generate the keyboard backlight
1918 * changed event (0x92), and thus, the driver will never update
1919 * the sysfs entries.
1920 *
1921 * The event is generated right when changing the keyboard
1922 * backlight mode and the *notify function will set the
1923 * kbd_event_generated to true.
1924 *
1925 * In case the event is not generated, schedule the keyboard
1926 * backlight work to update the sysfs entries and emulate the
1927 * event via genetlink.
1928 */
1929 if (toshiba->kbd_type == 2 &&
1930 !toshiba->kbd_event_generated)
1931 schedule_work(&kbd_bl_work);
1932 }
1933
1934 return count;
1935}
1936
1937static ssize_t kbd_backlight_mode_show(struct device *dev,
1938 struct device_attribute *attr,
1939 char *buf)
1940{
1941 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1942 u32 time;
1943
1944 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1945 return -EIO;
1946
1947 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1948}
1949static DEVICE_ATTR_RW(kbd_backlight_mode);
1950
1951static ssize_t kbd_type_show(struct device *dev,
1952 struct device_attribute *attr, char *buf)
1953{
1954 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1955
1956 return sprintf(buf, "%d\n", toshiba->kbd_type);
1957}
1958static DEVICE_ATTR_RO(kbd_type);
1959
1960static ssize_t available_kbd_modes_show(struct device *dev,
1961 struct device_attribute *attr,
1962 char *buf)
1963{
1964 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1965
1966 if (toshiba->kbd_type == 1)
1967 return sprintf(buf, "0x%x 0x%x\n",
1968 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1969
1970 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1971 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1972}
1973static DEVICE_ATTR_RO(available_kbd_modes);
1974
1975static ssize_t kbd_backlight_timeout_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 time;
1981 int ret;
1982
1983 ret = kstrtoint(buf, 0, &time);
1984 if (ret)
1985 return ret;
1986
1987 /* Check for supported values depending on kbd_type */
1988 if (toshiba->kbd_type == 1) {
1989 if (time < 0 || time > 60)
1990 return -EINVAL;
1991 } else if (toshiba->kbd_type == 2) {
1992 if (time < 1 || time > 60)
1993 return -EINVAL;
1994 }
1995
1996 /* Set the Keyboard Backlight Timeout */
1997
1998 /* Only make a change if the actual timeout has changed */
1999 if (toshiba->kbd_time != time) {
2000 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
2001 time = time << HCI_MISC_SHIFT;
2002 /* OR the "base time" to the actual method format */
2003 if (toshiba->kbd_type == 1)
2004 time |= SCI_KBD_MODE_FNZ;
2005 else if (toshiba->kbd_type == 2)
2006 time |= SCI_KBD_MODE_AUTO;
2007
2008 ret = toshiba_kbd_illum_status_set(toshiba, time);
2009 if (ret)
2010 return ret;
2011
2012 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
2013 }
2014
2015 return count;
2016}
2017
2018static ssize_t kbd_backlight_timeout_show(struct device *dev,
2019 struct device_attribute *attr,
2020 char *buf)
2021{
2022 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2023 u32 time;
2024
2025 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
2026 return -EIO;
2027
2028 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
2029}
2030static DEVICE_ATTR_RW(kbd_backlight_timeout);
2031
2032static ssize_t touchpad_store(struct device *dev,
2033 struct device_attribute *attr,
2034 const char *buf, size_t count)
2035{
2036 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2037 int state;
2038 int ret;
2039
2040 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
2041 ret = kstrtoint(buf, 0, &state);
2042 if (ret)
2043 return ret;
2044 if (state != 0 && state != 1)
2045 return -EINVAL;
2046
2047 ret = toshiba_touchpad_set(toshiba, state);
2048 if (ret)
2049 return ret;
2050
2051 return count;
2052}
2053
2054static ssize_t touchpad_show(struct device *dev,
2055 struct device_attribute *attr, char *buf)
2056{
2057 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2058 u32 state;
2059 int ret;
2060
2061 ret = toshiba_touchpad_get(toshiba, &state);
2062 if (ret < 0)
2063 return ret;
2064
2065 return sprintf(buf, "%i\n", state);
2066}
2067static DEVICE_ATTR_RW(touchpad);
2068
2069static ssize_t usb_sleep_charge_show(struct device *dev,
2070 struct device_attribute *attr, char *buf)
2071{
2072 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2073 u32 mode;
2074 int ret;
2075
2076 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2077 if (ret < 0)
2078 return ret;
2079
2080 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2081}
2082
2083static ssize_t usb_sleep_charge_store(struct device *dev,
2084 struct device_attribute *attr,
2085 const char *buf, size_t count)
2086{
2087 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2088 int state;
2089 u32 mode;
2090 int ret;
2091
2092 ret = kstrtoint(buf, 0, &state);
2093 if (ret)
2094 return ret;
2095 /*
2096 * Check for supported values, where:
2097 * 0 - Disabled
2098 * 1 - Alternate (Non USB conformant devices that require more power)
2099 * 2 - Auto (USB conformant devices)
2100 * 3 - Typical
2101 */
2102 if (state != 0 && state != 1 && state != 2 && state != 3)
2103 return -EINVAL;
2104
2105 /* Set the USB charging mode to internal value */
2106 mode = toshiba->usbsc_mode_base;
2107 if (state == 0)
2108 mode |= SCI_USB_CHARGE_DISABLED;
2109 else if (state == 1)
2110 mode |= SCI_USB_CHARGE_ALTERNATE;
2111 else if (state == 2)
2112 mode |= SCI_USB_CHARGE_AUTO;
2113 else if (state == 3)
2114 mode |= SCI_USB_CHARGE_TYPICAL;
2115
2116 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2117 if (ret)
2118 return ret;
2119
2120 return count;
2121}
2122static DEVICE_ATTR_RW(usb_sleep_charge);
2123
2124static ssize_t sleep_functions_on_battery_show(struct device *dev,
2125 struct device_attribute *attr,
2126 char *buf)
2127{
2128 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2129 int bat_lvl, status;
2130 u32 state;
2131 int ret;
2132 int tmp;
2133
2134 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2135 if (ret < 0)
2136 return ret;
2137
2138 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2139 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2140 status = (tmp == 0x4) ? 1 : 0;
2141 /* Determine the battery level set */
2142 bat_lvl = state >> HCI_MISC_SHIFT;
2143
2144 return sprintf(buf, "%d %d\n", status, bat_lvl);
2145}
2146
2147static ssize_t sleep_functions_on_battery_store(struct device *dev,
2148 struct device_attribute *attr,
2149 const char *buf, size_t count)
2150{
2151 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2152 u32 status;
2153 int value;
2154 int ret;
2155 int tmp;
2156
2157 ret = kstrtoint(buf, 0, &value);
2158 if (ret)
2159 return ret;
2160
2161 /*
2162 * Set the status of the function:
2163 * 0 - Disabled
2164 * 1-100 - Enabled
2165 */
2166 if (value < 0 || value > 100)
2167 return -EINVAL;
2168
2169 if (value == 0) {
2170 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2171 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2172 } else {
2173 tmp = value << HCI_MISC_SHIFT;
2174 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2175 }
2176 ret = toshiba_sleep_functions_status_set(toshiba, status);
2177 if (ret < 0)
2178 return ret;
2179
2180 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2181
2182 return count;
2183}
2184static DEVICE_ATTR_RW(sleep_functions_on_battery);
2185
2186static ssize_t usb_rapid_charge_show(struct device *dev,
2187 struct device_attribute *attr, char *buf)
2188{
2189 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2190 u32 state;
2191 int ret;
2192
2193 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2194 if (ret < 0)
2195 return ret;
2196
2197 return sprintf(buf, "%d\n", state);
2198}
2199
2200static ssize_t usb_rapid_charge_store(struct device *dev,
2201 struct device_attribute *attr,
2202 const char *buf, size_t count)
2203{
2204 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2205 int state;
2206 int ret;
2207
2208 ret = kstrtoint(buf, 0, &state);
2209 if (ret)
2210 return ret;
2211 if (state != 0 && state != 1)
2212 return -EINVAL;
2213
2214 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2215 if (ret)
2216 return ret;
2217
2218 return count;
2219}
2220static DEVICE_ATTR_RW(usb_rapid_charge);
2221
2222static ssize_t usb_sleep_music_show(struct device *dev,
2223 struct device_attribute *attr, char *buf)
2224{
2225 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2226 u32 state;
2227 int ret;
2228
2229 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2230 if (ret < 0)
2231 return ret;
2232
2233 return sprintf(buf, "%d\n", state);
2234}
2235
2236static ssize_t usb_sleep_music_store(struct device *dev,
2237 struct device_attribute *attr,
2238 const char *buf, size_t count)
2239{
2240 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2241 int state;
2242 int ret;
2243
2244 ret = kstrtoint(buf, 0, &state);
2245 if (ret)
2246 return ret;
2247 if (state != 0 && state != 1)
2248 return -EINVAL;
2249
2250 ret = toshiba_usb_sleep_music_set(toshiba, state);
2251 if (ret)
2252 return ret;
2253
2254 return count;
2255}
2256static DEVICE_ATTR_RW(usb_sleep_music);
2257
2258static ssize_t kbd_function_keys_show(struct device *dev,
2259 struct device_attribute *attr, char *buf)
2260{
2261 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2262 int mode;
2263 int ret;
2264
2265 ret = toshiba_function_keys_get(toshiba, &mode);
2266 if (ret < 0)
2267 return ret;
2268
2269 return sprintf(buf, "%d\n", mode);
2270}
2271
2272static ssize_t kbd_function_keys_store(struct device *dev,
2273 struct device_attribute *attr,
2274 const char *buf, size_t count)
2275{
2276 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2277 int mode;
2278 int ret;
2279
2280 ret = kstrtoint(buf, 0, &mode);
2281 if (ret)
2282 return ret;
2283 /*
2284 * Check for the function keys mode where:
2285 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2286 * 1 - Special functions (Opposite of the above setting)
2287 */
2288 if (mode != 0 && mode != 1)
2289 return -EINVAL;
2290
2291 ret = toshiba_function_keys_set(toshiba, mode);
2292 if (ret)
2293 return ret;
2294
2295 pr_info("Reboot for changes to KBD Function Keys to take effect");
2296
2297 return count;
2298}
2299static DEVICE_ATTR_RW(kbd_function_keys);
2300
2301static ssize_t panel_power_on_show(struct device *dev,
2302 struct device_attribute *attr, char *buf)
2303{
2304 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2305 u32 state;
2306 int ret;
2307
2308 ret = toshiba_panel_power_on_get(toshiba, &state);
2309 if (ret < 0)
2310 return ret;
2311
2312 return sprintf(buf, "%d\n", state);
2313}
2314
2315static ssize_t panel_power_on_store(struct device *dev,
2316 struct device_attribute *attr,
2317 const char *buf, size_t count)
2318{
2319 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2320 int state;
2321 int ret;
2322
2323 ret = kstrtoint(buf, 0, &state);
2324 if (ret)
2325 return ret;
2326 if (state != 0 && state != 1)
2327 return -EINVAL;
2328
2329 ret = toshiba_panel_power_on_set(toshiba, state);
2330 if (ret)
2331 return ret;
2332
2333 pr_info("Reboot for changes to Panel Power ON to take effect");
2334
2335 return count;
2336}
2337static DEVICE_ATTR_RW(panel_power_on);
2338
2339static ssize_t usb_three_show(struct device *dev,
2340 struct device_attribute *attr, char *buf)
2341{
2342 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2343 u32 state;
2344 int ret;
2345
2346 ret = toshiba_usb_three_get(toshiba, &state);
2347 if (ret < 0)
2348 return ret;
2349
2350 return sprintf(buf, "%d\n", state);
2351}
2352
2353static ssize_t usb_three_store(struct device *dev,
2354 struct device_attribute *attr,
2355 const char *buf, size_t count)
2356{
2357 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2358 int state;
2359 int ret;
2360
2361 ret = kstrtoint(buf, 0, &state);
2362 if (ret)
2363 return ret;
2364 /*
2365 * Check for USB 3 mode where:
2366 * 0 - Disabled (Acts like a USB 2 port, saving power)
2367 * 1 - Enabled
2368 */
2369 if (state != 0 && state != 1)
2370 return -EINVAL;
2371
2372 ret = toshiba_usb_three_set(toshiba, state);
2373 if (ret)
2374 return ret;
2375
2376 pr_info("Reboot for changes to USB 3 to take effect");
2377
2378 return count;
2379}
2380static DEVICE_ATTR_RW(usb_three);
2381
2382static ssize_t cooling_method_show(struct device *dev,
2383 struct device_attribute *attr, char *buf)
2384{
2385 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2386 int state;
2387 int ret;
2388
2389 ret = toshiba_cooling_method_get(toshiba, &state);
2390 if (ret < 0)
2391 return ret;
2392
2393 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2394}
2395
2396static ssize_t cooling_method_store(struct device *dev,
2397 struct device_attribute *attr,
2398 const char *buf, size_t count)
2399{
2400 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2401 int state;
2402 int ret;
2403
2404 ret = kstrtoint(buf, 0, &state);
2405 if (ret)
2406 return ret;
2407
2408 /*
2409 * Check for supported values
2410 * Depending on the laptop model, some only support these two:
2411 * 0 - Maximum Performance
2412 * 1 - Battery Optimized
2413 *
2414 * While some others support all three methods:
2415 * 0 - Maximum Performance
2416 * 1 - Performance
2417 * 2 - Battery Optimized
2418 */
2419 if (state < 0 || state > toshiba->max_cooling_method)
2420 return -EINVAL;
2421
2422 ret = toshiba_cooling_method_set(toshiba, state);
2423 if (ret)
2424 return ret;
2425
2426 return count;
2427}
2428static DEVICE_ATTR_RW(cooling_method);
2429
2430static struct attribute *toshiba_attributes[] = {
2431 &dev_attr_version.attr,
2432 &dev_attr_fan.attr,
2433 &dev_attr_kbd_backlight_mode.attr,
2434 &dev_attr_kbd_type.attr,
2435 &dev_attr_available_kbd_modes.attr,
2436 &dev_attr_kbd_backlight_timeout.attr,
2437 &dev_attr_touchpad.attr,
2438 &dev_attr_usb_sleep_charge.attr,
2439 &dev_attr_sleep_functions_on_battery.attr,
2440 &dev_attr_usb_rapid_charge.attr,
2441 &dev_attr_usb_sleep_music.attr,
2442 &dev_attr_kbd_function_keys.attr,
2443 &dev_attr_panel_power_on.attr,
2444 &dev_attr_usb_three.attr,
2445 &dev_attr_cooling_method.attr,
2446 NULL,
2447};
2448
2449static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2450 struct attribute *attr, int idx)
2451{
2452 struct device *dev = kobj_to_dev(kobj);
2453 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2454 bool exists = true;
2455
2456 if (attr == &dev_attr_fan.attr)
2457 exists = (drv->fan_supported) ? true : false;
2458 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2459 exists = (drv->kbd_illum_supported) ? true : false;
2460 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2461 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2462 else if (attr == &dev_attr_touchpad.attr)
2463 exists = (drv->touchpad_supported) ? true : false;
2464 else if (attr == &dev_attr_usb_sleep_charge.attr)
2465 exists = (drv->usb_sleep_charge_supported) ? true : false;
2466 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2467 exists = (drv->usb_sleep_charge_supported) ? true : false;
2468 else if (attr == &dev_attr_usb_rapid_charge.attr)
2469 exists = (drv->usb_rapid_charge_supported) ? true : false;
2470 else if (attr == &dev_attr_usb_sleep_music.attr)
2471 exists = (drv->usb_sleep_music_supported) ? true : false;
2472 else if (attr == &dev_attr_kbd_function_keys.attr)
2473 exists = (drv->kbd_function_keys_supported) ? true : false;
2474 else if (attr == &dev_attr_panel_power_on.attr)
2475 exists = (drv->panel_power_on_supported) ? true : false;
2476 else if (attr == &dev_attr_usb_three.attr)
2477 exists = (drv->usb_three_supported) ? true : false;
2478 else if (attr == &dev_attr_cooling_method.attr)
2479 exists = (drv->cooling_method_supported) ? true : false;
2480
2481 return exists ? attr->mode : 0;
2482}
2483
2484static const struct attribute_group toshiba_attr_group = {
2485 .is_visible = toshiba_sysfs_is_visible,
2486 .attrs = toshiba_attributes,
2487};
2488
2489static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2490{
2491 /* Update the sysfs entries */
2492 if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2493 &toshiba_attr_group))
2494 pr_err("Unable to update sysfs entries\n");
2495
2496 /* Notify LED subsystem about keyboard backlight change */
2497 if (toshiba_acpi->kbd_type == 2 &&
2498 toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2499 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2500 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2501 LED_FULL : LED_OFF);
2502
2503 /* Emulate the keyboard backlight event */
2504 acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2505 dev_name(&toshiba_acpi->acpi_dev->dev),
2506 0x92, 0);
2507}
2508
2509/*
2510 * IIO device
2511 */
2512
2513enum toshiba_iio_accel_chan {
2514 AXIS_X,
2515 AXIS_Y,
2516 AXIS_Z
2517};
2518
2519static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2520{
2521 u32 xyval, zval;
2522 int ret;
2523
2524 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2525 if (ret < 0)
2526 return ret;
2527
2528 switch (chan) {
2529 case AXIS_X:
2530 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2531 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2532 case AXIS_Y:
2533 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2534 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2535 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2536 case AXIS_Z:
2537 return zval & HCI_ACCEL_DIRECTION_MASK ?
2538 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2539 }
2540
2541 return ret;
2542}
2543
2544static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2545 struct iio_chan_spec const *chan,
2546 int *val, int *val2, long mask)
2547{
2548 int ret;
2549
2550 switch (mask) {
2551 case IIO_CHAN_INFO_RAW:
2552 ret = toshiba_iio_accel_get_axis(chan->channel);
2553 if (ret == -EIO || ret == -ENODEV)
2554 return ret;
2555
2556 *val = ret;
2557
2558 return IIO_VAL_INT;
2559 }
2560
2561 return -EINVAL;
2562}
2563
2564#define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2565 .type = IIO_ACCEL, \
2566 .modified = 1, \
2567 .channel = chan, \
2568 .channel2 = IIO_MOD_##axis, \
2569 .output = 1, \
2570 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2571}
2572
2573static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2574 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2575 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2576 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2577};
2578
2579static const struct iio_info toshiba_iio_accel_info = {
2580 .read_raw = &toshiba_iio_accel_read_raw,
2581};
2582
2583/*
2584 * Misc device
2585 */
2586static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2587{
2588 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2589 regs->edx, regs->esi, regs->edi };
2590 u32 out[TCI_WORDS];
2591 acpi_status status;
2592
2593 status = tci_raw(toshiba_acpi, in, out);
2594 if (ACPI_FAILURE(status)) {
2595 pr_err("ACPI call to query SMM registers failed\n");
2596 return -EIO;
2597 }
2598
2599 /* Fillout the SMM struct with the TCI call results */
2600 regs->eax = out[0];
2601 regs->ebx = out[1];
2602 regs->ecx = out[2];
2603 regs->edx = out[3];
2604 regs->esi = out[4];
2605 regs->edi = out[5];
2606
2607 return 0;
2608}
2609
2610static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2611 unsigned long arg)
2612{
2613 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2614 SMMRegisters regs;
2615 int ret;
2616
2617 if (!argp)
2618 return -EINVAL;
2619
2620 switch (cmd) {
2621 case TOSH_SMM:
2622 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2623 return -EFAULT;
2624 ret = toshiba_acpi_smm_bridge(®s);
2625 if (ret)
2626 return ret;
2627 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2628 return -EFAULT;
2629 break;
2630 case TOSHIBA_ACPI_SCI:
2631 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2632 return -EFAULT;
2633 /* Ensure we are being called with a SCI_{GET, SET} register */
2634 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2635 return -EINVAL;
2636 if (!sci_open(toshiba_acpi))
2637 return -EIO;
2638 ret = toshiba_acpi_smm_bridge(®s);
2639 sci_close(toshiba_acpi);
2640 if (ret)
2641 return ret;
2642 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2643 return -EFAULT;
2644 break;
2645 default:
2646 return -EINVAL;
2647 }
2648
2649 return 0;
2650}
2651
2652static const struct file_operations toshiba_acpi_fops = {
2653 .owner = THIS_MODULE,
2654 .unlocked_ioctl = toshiba_acpi_ioctl,
2655 .llseek = noop_llseek,
2656};
2657
2658/*
2659 * WWAN RFKill handlers
2660 */
2661static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2662{
2663 struct toshiba_acpi_dev *dev = data;
2664 int ret;
2665
2666 ret = toshiba_wireless_status(dev);
2667 if (ret)
2668 return ret;
2669
2670 if (!dev->killswitch)
2671 return 0;
2672
2673 return toshiba_wwan_set(dev, !blocked);
2674}
2675
2676static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2677{
2678 struct toshiba_acpi_dev *dev = data;
2679
2680 if (toshiba_wireless_status(dev))
2681 return;
2682
2683 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2684}
2685
2686static const struct rfkill_ops wwan_rfk_ops = {
2687 .set_block = toshiba_acpi_wwan_set_block,
2688 .poll = toshiba_acpi_wwan_poll,
2689};
2690
2691static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2692{
2693 int ret = toshiba_wireless_status(dev);
2694
2695 if (ret)
2696 return ret;
2697
2698 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2699 &dev->acpi_dev->dev,
2700 RFKILL_TYPE_WWAN,
2701 &wwan_rfk_ops,
2702 dev);
2703 if (!dev->wwan_rfk) {
2704 pr_err("Unable to allocate WWAN rfkill device\n");
2705 return -ENOMEM;
2706 }
2707
2708 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2709
2710 ret = rfkill_register(dev->wwan_rfk);
2711 if (ret) {
2712 pr_err("Unable to register WWAN rfkill device\n");
2713 rfkill_destroy(dev->wwan_rfk);
2714 }
2715
2716 return ret;
2717}
2718
2719/*
2720 * Hotkeys
2721 */
2722static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2723{
2724 acpi_status status;
2725 u32 result;
2726
2727 status = acpi_evaluate_object(dev->acpi_dev->handle,
2728 "ENAB", NULL, NULL);
2729 if (ACPI_FAILURE(status))
2730 return -ENODEV;
2731
2732 /*
2733 * Enable the "Special Functions" mode only if they are
2734 * supported and if they are activated.
2735 */
2736 if (dev->kbd_function_keys_supported && dev->special_functions)
2737 result = hci_write(dev, HCI_HOTKEY_EVENT,
2738 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2739 else
2740 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2741
2742 if (result == TOS_FAILURE)
2743 return -EIO;
2744 else if (result == TOS_NOT_SUPPORTED)
2745 return -ENODEV;
2746
2747 return 0;
2748}
2749
2750static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2751 struct serio *port)
2752{
2753 if (str & I8042_STR_AUXDATA)
2754 return false;
2755
2756 if (unlikely(data == 0xe0))
2757 return false;
2758
2759 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2760 schedule_work(&toshiba_acpi->hotkey_work);
2761 return true;
2762 }
2763
2764 return false;
2765}
2766
2767static void toshiba_acpi_hotkey_work(struct work_struct *work)
2768{
2769 acpi_handle ec_handle = ec_get_handle();
2770 acpi_status status;
2771
2772 if (!ec_handle)
2773 return;
2774
2775 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2776 if (ACPI_FAILURE(status))
2777 pr_err("ACPI NTFY method execution failed\n");
2778}
2779
2780/*
2781 * Returns hotkey scancode, or < 0 on failure.
2782 */
2783static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2784{
2785 unsigned long long value;
2786 acpi_status status;
2787
2788 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2789 NULL, &value);
2790 if (ACPI_FAILURE(status)) {
2791 pr_err("ACPI INFO method execution failed\n");
2792 return -EIO;
2793 }
2794
2795 return value;
2796}
2797
2798static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2799 int scancode)
2800{
2801 if (scancode == 0x100)
2802 return;
2803
2804 /* Act on key press; ignore key release */
2805 if (scancode & 0x80)
2806 return;
2807
2808 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2809 pr_info("Unknown key %x\n", scancode);
2810}
2811
2812static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2813{
2814 if (dev->info_supported) {
2815 int scancode = toshiba_acpi_query_hotkey(dev);
2816
2817 if (scancode < 0) {
2818 pr_err("Failed to query hotkey event\n");
2819 } else if (scancode != 0) {
2820 toshiba_acpi_report_hotkey(dev, scancode);
2821 dev->key_event_valid = 1;
2822 dev->last_key_event = scancode;
2823 }
2824 } else if (dev->system_event_supported) {
2825 u32 result;
2826 u32 value;
2827 int retries = 3;
2828
2829 do {
2830 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2831 switch (result) {
2832 case TOS_SUCCESS:
2833 toshiba_acpi_report_hotkey(dev, (int)value);
2834 dev->key_event_valid = 1;
2835 dev->last_key_event = value;
2836 break;
2837 case TOS_NOT_SUPPORTED:
2838 /*
2839 * This is a workaround for an unresolved
2840 * issue on some machines where system events
2841 * sporadically become disabled.
2842 */
2843 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2844 if (result == TOS_SUCCESS)
2845 pr_notice("Re-enabled hotkeys\n");
2846 fallthrough;
2847 default:
2848 retries--;
2849 break;
2850 }
2851 } while (retries && result != TOS_FIFO_EMPTY);
2852 }
2853}
2854
2855static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2856{
2857 const struct key_entry *keymap = toshiba_acpi_keymap;
2858 acpi_handle ec_handle;
2859 int error;
2860
2861 if (disable_hotkeys) {
2862 pr_info("Hotkeys disabled by module parameter\n");
2863 return 0;
2864 }
2865
2866 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2867 pr_info("WMI event detected, hotkeys will not be monitored\n");
2868 return 0;
2869 }
2870
2871 error = toshiba_acpi_enable_hotkeys(dev);
2872 if (error)
2873 return error;
2874
2875 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2876 pr_notice("Unable to query Hotkey Event Type\n");
2877
2878 dev->hotkey_dev = input_allocate_device();
2879 if (!dev->hotkey_dev)
2880 return -ENOMEM;
2881
2882 dev->hotkey_dev->name = "Toshiba input device";
2883 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2884 dev->hotkey_dev->id.bustype = BUS_HOST;
2885 dev->hotkey_dev->dev.parent = &dev->acpi_dev->dev;
2886
2887 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2888 !dev->kbd_function_keys_supported)
2889 keymap = toshiba_acpi_keymap;
2890 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2891 dev->kbd_function_keys_supported)
2892 keymap = toshiba_acpi_alt_keymap;
2893 else
2894 pr_info("Unknown event type received %x\n",
2895 dev->hotkey_event_type);
2896 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2897 if (error)
2898 goto err_free_dev;
2899
2900 /*
2901 * For some machines the SCI responsible for providing hotkey
2902 * notification doesn't fire. We can trigger the notification
2903 * whenever the Fn key is pressed using the NTFY method, if
2904 * supported, so if it's present set up an i8042 key filter
2905 * for this purpose.
2906 */
2907 ec_handle = ec_get_handle();
2908 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2909 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2910
2911 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2912 if (error) {
2913 pr_err("Error installing key filter\n");
2914 goto err_free_dev;
2915 }
2916
2917 dev->ntfy_supported = 1;
2918 }
2919
2920 /*
2921 * Determine hotkey query interface. Prefer using the INFO
2922 * method when it is available.
2923 */
2924 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2925 dev->info_supported = 1;
2926 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2927 dev->system_event_supported = 1;
2928
2929 if (!dev->info_supported && !dev->system_event_supported) {
2930 pr_warn("No hotkey query interface found\n");
2931 error = -EINVAL;
2932 goto err_remove_filter;
2933 }
2934
2935 error = input_register_device(dev->hotkey_dev);
2936 if (error) {
2937 pr_info("Unable to register input device\n");
2938 goto err_remove_filter;
2939 }
2940
2941 return 0;
2942
2943 err_remove_filter:
2944 if (dev->ntfy_supported)
2945 i8042_remove_filter(toshiba_acpi_i8042_filter);
2946 err_free_dev:
2947 input_free_device(dev->hotkey_dev);
2948 dev->hotkey_dev = NULL;
2949 return error;
2950}
2951
2952static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2953{
2954 struct backlight_properties props;
2955 int brightness;
2956 int ret;
2957
2958 /*
2959 * Some machines don't support the backlight methods at all, and
2960 * others support it read-only. Either of these is pretty useless,
2961 * so only register the backlight device if the backlight method
2962 * supports both reads and writes.
2963 */
2964 brightness = __get_lcd_brightness(dev);
2965 if (brightness < 0)
2966 return 0;
2967 /*
2968 * If transflective backlight is supported and the brightness is zero
2969 * (lowest brightness level), the set_lcd_brightness function will
2970 * activate the transflective backlight, making the LCD appear to be
2971 * turned off, simply increment the brightness level to avoid that.
2972 */
2973 if (dev->tr_backlight_supported && brightness == 0)
2974 brightness++;
2975 ret = set_lcd_brightness(dev, brightness);
2976 if (ret) {
2977 pr_debug("Backlight method is read-only, disabling backlight support\n");
2978 return 0;
2979 }
2980
2981 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2982 return 0;
2983
2984 memset(&props, 0, sizeof(props));
2985 props.type = BACKLIGHT_PLATFORM;
2986 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2987
2988 /* Adding an extra level and having 0 change to transflective mode */
2989 if (dev->tr_backlight_supported)
2990 props.max_brightness++;
2991
2992 dev->backlight_dev = backlight_device_register("toshiba",
2993 &dev->acpi_dev->dev,
2994 dev,
2995 &toshiba_backlight_data,
2996 &props);
2997 if (IS_ERR(dev->backlight_dev)) {
2998 ret = PTR_ERR(dev->backlight_dev);
2999 pr_err("Could not register toshiba backlight device\n");
3000 dev->backlight_dev = NULL;
3001 return ret;
3002 }
3003
3004 dev->backlight_dev->props.brightness = brightness;
3005 return 0;
3006}
3007
3008/* HWMON support for fan */
3009#if IS_ENABLED(CONFIG_HWMON)
3010static umode_t toshiba_acpi_hwmon_is_visible(const void *drvdata,
3011 enum hwmon_sensor_types type,
3012 u32 attr, int channel)
3013{
3014 return 0444;
3015}
3016
3017static int toshiba_acpi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
3018 u32 attr, int channel, long *val)
3019{
3020 /*
3021 * There is only a single channel and single attribute (for the
3022 * fan) at this point.
3023 * This can be replaced with more advanced logic in the future,
3024 * should the need arise.
3025 */
3026 if (type == hwmon_fan && channel == 0 && attr == hwmon_fan_input) {
3027 u32 value;
3028 int ret;
3029
3030 ret = get_fan_rpm(toshiba_acpi, &value);
3031 if (ret)
3032 return ret;
3033
3034 *val = value;
3035 return 0;
3036 }
3037 return -EOPNOTSUPP;
3038}
3039
3040static const struct hwmon_channel_info *toshiba_acpi_hwmon_info[] = {
3041 HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT),
3042 NULL
3043};
3044
3045static const struct hwmon_ops toshiba_acpi_hwmon_ops = {
3046 .is_visible = toshiba_acpi_hwmon_is_visible,
3047 .read = toshiba_acpi_hwmon_read,
3048};
3049
3050static const struct hwmon_chip_info toshiba_acpi_hwmon_chip_info = {
3051 .ops = &toshiba_acpi_hwmon_ops,
3052 .info = toshiba_acpi_hwmon_info,
3053};
3054#endif
3055
3056/* ACPI battery hooking */
3057static ssize_t charge_control_end_threshold_show(struct device *device,
3058 struct device_attribute *attr,
3059 char *buf)
3060{
3061 u32 state;
3062 int status;
3063
3064 if (toshiba_acpi == NULL) {
3065 pr_err("Toshiba ACPI object invalid\n");
3066 return -ENODEV;
3067 }
3068
3069 status = toshiba_battery_charge_mode_get(toshiba_acpi, &state);
3070
3071 if (status != 0)
3072 return status;
3073
3074 if (state == 1)
3075 return sprintf(buf, "80\n");
3076 else
3077 return sprintf(buf, "100\n");
3078}
3079
3080static ssize_t charge_control_end_threshold_store(struct device *dev,
3081 struct device_attribute *attr,
3082 const char *buf,
3083 size_t count)
3084{
3085 u32 value;
3086 int rval;
3087
3088 if (toshiba_acpi == NULL) {
3089 pr_err("Toshiba ACPI object invalid\n");
3090 return -ENODEV;
3091 }
3092
3093 rval = kstrtou32(buf, 10, &value);
3094 if (rval)
3095 return rval;
3096
3097 if (value < 1 || value > 100)
3098 return -EINVAL;
3099 rval = toshiba_battery_charge_mode_set(toshiba_acpi,
3100 (value < 90) ? 1 : 0);
3101 if (rval < 0)
3102 return rval;
3103 else
3104 return count;
3105}
3106
3107static DEVICE_ATTR_RW(charge_control_end_threshold);
3108
3109static struct attribute *toshiba_acpi_battery_attrs[] = {
3110 &dev_attr_charge_control_end_threshold.attr,
3111 NULL,
3112};
3113
3114ATTRIBUTE_GROUPS(toshiba_acpi_battery);
3115
3116static int toshiba_acpi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
3117{
3118 if (toshiba_acpi == NULL) {
3119 pr_err("Init order issue\n");
3120 return -ENODEV;
3121 }
3122 if (!toshiba_acpi->battery_charge_mode_supported)
3123 return -ENODEV;
3124 if (device_add_groups(&battery->dev, toshiba_acpi_battery_groups))
3125 return -ENODEV;
3126 return 0;
3127}
3128
3129static int toshiba_acpi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
3130{
3131 device_remove_groups(&battery->dev, toshiba_acpi_battery_groups);
3132 return 0;
3133}
3134
3135static struct acpi_battery_hook battery_hook = {
3136 .add_battery = toshiba_acpi_battery_add,
3137 .remove_battery = toshiba_acpi_battery_remove,
3138 .name = "Toshiba Battery Extension",
3139};
3140
3141static void print_supported_features(struct toshiba_acpi_dev *dev)
3142{
3143 pr_info("Supported laptop features:");
3144
3145 if (dev->hotkey_dev)
3146 pr_cont(" hotkeys");
3147 if (dev->backlight_dev)
3148 pr_cont(" backlight");
3149 if (dev->video_supported)
3150 pr_cont(" video-out");
3151 if (dev->fan_supported)
3152 pr_cont(" fan");
3153 if (dev->fan_rpm_supported)
3154 pr_cont(" fan-rpm");
3155 if (dev->tr_backlight_supported)
3156 pr_cont(" transflective-backlight");
3157 if (dev->illumination_supported)
3158 pr_cont(" illumination");
3159 if (dev->kbd_illum_supported)
3160 pr_cont(" keyboard-backlight");
3161 if (dev->touchpad_supported)
3162 pr_cont(" touchpad");
3163 if (dev->eco_supported)
3164 pr_cont(" eco-led");
3165 if (dev->accelerometer_supported)
3166 pr_cont(" accelerometer-axes");
3167 if (dev->usb_sleep_charge_supported)
3168 pr_cont(" usb-sleep-charge");
3169 if (dev->usb_rapid_charge_supported)
3170 pr_cont(" usb-rapid-charge");
3171 if (dev->usb_sleep_music_supported)
3172 pr_cont(" usb-sleep-music");
3173 if (dev->kbd_function_keys_supported)
3174 pr_cont(" special-function-keys");
3175 if (dev->panel_power_on_supported)
3176 pr_cont(" panel-power-on");
3177 if (dev->usb_three_supported)
3178 pr_cont(" usb3");
3179 if (dev->wwan_supported)
3180 pr_cont(" wwan");
3181 if (dev->cooling_method_supported)
3182 pr_cont(" cooling-method");
3183 if (dev->battery_charge_mode_supported)
3184 pr_cont(" battery-charge-mode");
3185
3186 pr_cont("\n");
3187}
3188
3189static void toshiba_acpi_remove(struct acpi_device *acpi_dev)
3190{
3191 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3192
3193 misc_deregister(&dev->miscdev);
3194
3195 remove_toshiba_proc_entries(dev);
3196
3197#if IS_ENABLED(CONFIG_HWMON)
3198 if (dev->hwmon_device)
3199 hwmon_device_unregister(dev->hwmon_device);
3200#endif
3201
3202 if (dev->accelerometer_supported && dev->indio_dev) {
3203 iio_device_unregister(dev->indio_dev);
3204 iio_device_free(dev->indio_dev);
3205 }
3206
3207 if (dev->sysfs_created)
3208 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3209 &toshiba_attr_group);
3210
3211 if (dev->ntfy_supported) {
3212 i8042_remove_filter(toshiba_acpi_i8042_filter);
3213 cancel_work_sync(&dev->hotkey_work);
3214 }
3215
3216 if (dev->hotkey_dev)
3217 input_unregister_device(dev->hotkey_dev);
3218
3219 backlight_device_unregister(dev->backlight_dev);
3220
3221 led_classdev_unregister(&dev->led_dev);
3222 led_classdev_unregister(&dev->kbd_led);
3223 led_classdev_unregister(&dev->eco_led);
3224
3225 if (dev->wwan_rfk) {
3226 rfkill_unregister(dev->wwan_rfk);
3227 rfkill_destroy(dev->wwan_rfk);
3228 }
3229
3230 if (dev->battery_charge_mode_supported)
3231 battery_hook_unregister(&battery_hook);
3232
3233 if (toshiba_acpi)
3234 toshiba_acpi = NULL;
3235
3236 kfree(dev);
3237}
3238
3239static const char *find_hci_method(acpi_handle handle)
3240{
3241 if (acpi_has_method(handle, "GHCI"))
3242 return "GHCI";
3243
3244 if (acpi_has_method(handle, "SPFC"))
3245 return "SPFC";
3246
3247 return NULL;
3248}
3249
3250/*
3251 * Some Toshibas have a broken acpi-video interface for brightness control,
3252 * these are quirked in drivers/acpi/video_detect.c to use the GPU native
3253 * (/sys/class/backlight/intel_backlight) instead.
3254 * But these need a HCI_SET call to actually turn the panel back on at resume,
3255 * without this call the screen stays black at resume.
3256 * Either HCI_LCD_BRIGHTNESS (used by acpi_video's _BCM) or HCI_PANEL_POWER_ON
3257 * works. toshiba_acpi_resume() uses HCI_PANEL_POWER_ON to avoid changing
3258 * the configured brightness level.
3259 */
3260static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
3261 {
3262 /* Toshiba Portégé R700 */
3263 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3264 .matches = {
3265 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3266 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
3267 },
3268 },
3269 {
3270 /* Toshiba Satellite/Portégé R830 */
3271 /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
3272 /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3273 .matches = {
3274 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3275 DMI_MATCH(DMI_PRODUCT_NAME, "R830"),
3276 },
3277 },
3278 {
3279 /* Toshiba Satellite/Portégé Z830 */
3280 .matches = {
3281 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3282 DMI_MATCH(DMI_PRODUCT_NAME, "Z830"),
3283 },
3284 },
3285};
3286
3287static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3288{
3289 struct toshiba_acpi_dev *dev;
3290 const char *hci_method;
3291 u32 dummy;
3292 int ret = 0;
3293
3294 if (toshiba_acpi)
3295 return -EBUSY;
3296
3297 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3298 TOSHIBA_ACPI_VERSION);
3299
3300 hci_method = find_hci_method(acpi_dev->handle);
3301 if (!hci_method) {
3302 pr_err("HCI interface not found\n");
3303 return -ENODEV;
3304 }
3305
3306 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3307 if (!dev)
3308 return -ENOMEM;
3309 dev->acpi_dev = acpi_dev;
3310 dev->method_hci = hci_method;
3311 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3312 dev->miscdev.name = "toshiba_acpi";
3313 dev->miscdev.fops = &toshiba_acpi_fops;
3314
3315 ret = misc_register(&dev->miscdev);
3316 if (ret) {
3317 pr_err("Failed to register miscdevice\n");
3318 kfree(dev);
3319 return ret;
3320 }
3321
3322 acpi_dev->driver_data = dev;
3323 dev_set_drvdata(&acpi_dev->dev, dev);
3324
3325 /* Query the BIOS for supported features */
3326
3327 /*
3328 * The "Special Functions" are always supported by the laptops
3329 * with the new keyboard layout, query for its presence to help
3330 * determine the keymap layout to use.
3331 */
3332 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3333 dev->kbd_function_keys_supported = !ret;
3334
3335 dev->hotkey_event_type = 0;
3336 if (toshiba_acpi_setup_keyboard(dev))
3337 pr_info("Unable to activate hotkeys\n");
3338
3339 /* Determine whether or not BIOS supports transflective backlight */
3340 ret = get_tr_backlight_status(dev, &dummy);
3341 dev->tr_backlight_supported = !ret;
3342
3343 ret = toshiba_acpi_setup_backlight(dev);
3344 if (ret)
3345 goto error;
3346
3347 toshiba_illumination_available(dev);
3348 if (dev->illumination_supported) {
3349 dev->led_dev.name = "toshiba::illumination";
3350 dev->led_dev.max_brightness = 1;
3351 dev->led_dev.brightness_set = toshiba_illumination_set;
3352 dev->led_dev.brightness_get = toshiba_illumination_get;
3353 led_classdev_register(&acpi_dev->dev, &dev->led_dev);
3354 }
3355
3356 toshiba_eco_mode_available(dev);
3357 if (dev->eco_supported) {
3358 dev->eco_led.name = "toshiba::eco_mode";
3359 dev->eco_led.max_brightness = 1;
3360 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3361 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3362 led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led);
3363 }
3364
3365 toshiba_kbd_illum_available(dev);
3366 /*
3367 * Only register the LED if KBD illumination is supported
3368 * and the keyboard backlight operation mode is set to FN-Z
3369 * or we detect a second gen keyboard backlight
3370 */
3371 if (dev->kbd_illum_supported &&
3372 (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3373 dev->kbd_led.name = "toshiba::kbd_backlight";
3374 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3375 dev->kbd_led.max_brightness = 1;
3376 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3377 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3378 led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led);
3379 }
3380
3381 ret = toshiba_touchpad_get(dev, &dummy);
3382 dev->touchpad_supported = !ret;
3383
3384 toshiba_accelerometer_available(dev);
3385 if (dev->accelerometer_supported) {
3386 dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev));
3387 if (!dev->indio_dev) {
3388 pr_err("Unable to allocate iio device\n");
3389 goto iio_error;
3390 }
3391
3392 pr_info("Registering Toshiba accelerometer iio device\n");
3393
3394 dev->indio_dev->info = &toshiba_iio_accel_info;
3395 dev->indio_dev->name = "Toshiba accelerometer";
3396 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3397 dev->indio_dev->channels = toshiba_iio_accel_channels;
3398 dev->indio_dev->num_channels =
3399 ARRAY_SIZE(toshiba_iio_accel_channels);
3400
3401 ret = iio_device_register(dev->indio_dev);
3402 if (ret < 0) {
3403 pr_err("Unable to register iio device\n");
3404 iio_device_free(dev->indio_dev);
3405 }
3406 }
3407iio_error:
3408
3409 toshiba_usb_sleep_charge_available(dev);
3410
3411 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3412 dev->usb_rapid_charge_supported = !ret;
3413
3414 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3415 dev->usb_sleep_music_supported = !ret;
3416
3417 ret = toshiba_panel_power_on_get(dev, &dummy);
3418 dev->panel_power_on_supported = !ret;
3419
3420 ret = toshiba_usb_three_get(dev, &dummy);
3421 dev->usb_three_supported = !ret;
3422
3423 ret = get_video_status(dev, &dummy);
3424 dev->video_supported = !ret;
3425
3426 ret = get_fan_status(dev, &dummy);
3427 dev->fan_supported = !ret;
3428
3429 ret = get_fan_rpm(dev, &dummy);
3430 dev->fan_rpm_supported = !ret;
3431
3432#if IS_ENABLED(CONFIG_HWMON)
3433 if (dev->fan_rpm_supported) {
3434 dev->hwmon_device = hwmon_device_register_with_info(
3435 &dev->acpi_dev->dev, "toshiba_acpi_sensors", NULL,
3436 &toshiba_acpi_hwmon_chip_info, NULL);
3437 if (IS_ERR(dev->hwmon_device)) {
3438 dev->hwmon_device = NULL;
3439 pr_warn("unable to register hwmon device, skipping\n");
3440 }
3441 }
3442#endif
3443
3444 if (turn_on_panel_on_resume == -1)
3445 turn_on_panel_on_resume = dmi_check_system(turn_on_panel_on_resume_dmi_ids);
3446
3447 toshiba_wwan_available(dev);
3448 if (dev->wwan_supported)
3449 toshiba_acpi_setup_wwan_rfkill(dev);
3450
3451 toshiba_cooling_method_available(dev);
3452
3453 toshiba_battery_charge_mode_available(dev);
3454
3455 print_supported_features(dev);
3456
3457 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3458 &toshiba_attr_group);
3459 if (ret) {
3460 dev->sysfs_created = 0;
3461 goto error;
3462 }
3463 dev->sysfs_created = !ret;
3464
3465 create_toshiba_proc_entries(dev);
3466
3467 toshiba_acpi = dev;
3468
3469 /*
3470 * As the battery hook relies on the static variable toshiba_acpi being
3471 * set, this must be done after toshiba_acpi is assigned.
3472 */
3473 if (dev->battery_charge_mode_supported)
3474 battery_hook_register(&battery_hook);
3475
3476 return 0;
3477
3478error:
3479 toshiba_acpi_remove(acpi_dev);
3480 return ret;
3481}
3482
3483static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3484{
3485 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3486
3487 switch (event) {
3488 case 0x80: /* Hotkeys and some system events */
3489 /*
3490 * Machines with this WMI GUID aren't supported due to bugs in
3491 * their AML.
3492 *
3493 * Return silently to avoid triggering a netlink event.
3494 */
3495 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3496 return;
3497 toshiba_acpi_process_hotkeys(dev);
3498 break;
3499 case 0x81: /* Dock events */
3500 case 0x82:
3501 case 0x83:
3502 pr_info("Dock event received %x\n", event);
3503 break;
3504 case 0x88: /* Thermal events */
3505 pr_info("Thermal event received\n");
3506 break;
3507 case 0x8f: /* LID closed */
3508 case 0x90: /* LID is closed and Dock has been ejected */
3509 break;
3510 case 0x8c: /* SATA power events */
3511 case 0x8b:
3512 pr_info("SATA power event received %x\n", event);
3513 break;
3514 case 0x92: /* Keyboard backlight mode changed */
3515 dev->kbd_event_generated = true;
3516 /* Update sysfs entries */
3517 if (sysfs_update_group(&acpi_dev->dev.kobj,
3518 &toshiba_attr_group))
3519 pr_err("Unable to update sysfs entries\n");
3520 /* Notify LED subsystem about keyboard backlight change */
3521 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3522 led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3523 (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3524 LED_FULL : LED_OFF);
3525 break;
3526 case 0x85: /* Unknown */
3527 case 0x8d: /* Unknown */
3528 case 0x8e: /* Unknown */
3529 case 0x94: /* Unknown */
3530 case 0x95: /* Unknown */
3531 default:
3532 pr_info("Unknown event received %x\n", event);
3533 break;
3534 }
3535
3536 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3537 dev_name(&acpi_dev->dev),
3538 event, (event == 0x80) ?
3539 dev->last_key_event : 0);
3540}
3541
3542#ifdef CONFIG_PM_SLEEP
3543static int toshiba_acpi_suspend(struct device *device)
3544{
3545 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3546
3547 if (dev->hotkey_dev) {
3548 u32 result;
3549
3550 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3551 if (result != TOS_SUCCESS)
3552 pr_info("Unable to disable hotkeys\n");
3553 }
3554
3555 return 0;
3556}
3557
3558static int toshiba_acpi_resume(struct device *device)
3559{
3560 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3561
3562 if (dev->hotkey_dev) {
3563 if (toshiba_acpi_enable_hotkeys(dev))
3564 pr_info("Unable to re-enable hotkeys\n");
3565 }
3566
3567 if (dev->wwan_rfk) {
3568 if (!toshiba_wireless_status(dev))
3569 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3570 }
3571
3572 if (turn_on_panel_on_resume)
3573 hci_write(dev, HCI_PANEL_POWER_ON, 1);
3574
3575 return 0;
3576}
3577#endif
3578
3579static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3580 toshiba_acpi_suspend, toshiba_acpi_resume);
3581
3582static struct acpi_driver toshiba_acpi_driver = {
3583 .name = "Toshiba ACPI driver",
3584 .owner = THIS_MODULE,
3585 .ids = toshiba_device_ids,
3586 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3587 .ops = {
3588 .add = toshiba_acpi_add,
3589 .remove = toshiba_acpi_remove,
3590 .notify = toshiba_acpi_notify,
3591 },
3592 .drv.pm = &toshiba_acpi_pm,
3593};
3594
3595static int __init toshiba_acpi_init(void)
3596{
3597 int ret;
3598
3599 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3600 if (!toshiba_proc_dir) {
3601 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3602 return -ENODEV;
3603 }
3604
3605 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3606 if (ret) {
3607 pr_err("Failed to register ACPI driver: %d\n", ret);
3608 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3609 }
3610
3611 return ret;
3612}
3613
3614static void __exit toshiba_acpi_exit(void)
3615{
3616 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3617 if (toshiba_proc_dir)
3618 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3619}
3620
3621module_init(toshiba_acpi_init);
3622module_exit(toshiba_acpi_exit);
1/*
2 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
3 *
4 *
5 * Copyright (C) 2002-2004 John Belmonte
6 * Copyright (C) 2008 Philip Langdale
7 * Copyright (C) 2010 Pierre Ducroquet
8 * Copyright (C) 2014 Azael Avalos
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 *
24 *
25 * The devolpment page for this driver is located at
26 * http://memebeam.org/toys/ToshibaAcpiDriver.
27 *
28 * Credits:
29 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
30 * engineering the Windows drivers
31 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
32 * Rob Miller - TV out and hotkeys help
33 *
34 *
35 * TODO
36 *
37 */
38
39#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
40
41#define TOSHIBA_ACPI_VERSION "0.20"
42#define PROC_INTERFACE_VERSION 1
43
44#include <linux/kernel.h>
45#include <linux/module.h>
46#include <linux/init.h>
47#include <linux/types.h>
48#include <linux/proc_fs.h>
49#include <linux/seq_file.h>
50#include <linux/backlight.h>
51#include <linux/rfkill.h>
52#include <linux/input.h>
53#include <linux/input/sparse-keymap.h>
54#include <linux/leds.h>
55#include <linux/slab.h>
56#include <linux/workqueue.h>
57#include <linux/i8042.h>
58#include <linux/acpi.h>
59#include <asm/uaccess.h>
60
61MODULE_AUTHOR("John Belmonte");
62MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
63MODULE_LICENSE("GPL");
64
65#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
66
67/* Scan code for Fn key on TOS1900 models */
68#define TOS1900_FN_SCAN 0x6e
69
70/* Toshiba ACPI method paths */
71#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
72
73/* Toshiba HCI interface definitions
74 *
75 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
76 * be uniform across all their models. Ideally we would just call
77 * dedicated ACPI methods instead of using this primitive interface.
78 * However the ACPI methods seem to be incomplete in some areas (for
79 * example they allow setting, but not reading, the LCD brightness value),
80 * so this is still useful.
81 *
82 * SCI stands for "System Configuration Interface" which aim is to
83 * conceal differences in hardware between different models.
84 */
85
86#define HCI_WORDS 6
87
88/* operations */
89#define HCI_SET 0xff00
90#define HCI_GET 0xfe00
91#define SCI_OPEN 0xf100
92#define SCI_CLOSE 0xf200
93#define SCI_GET 0xf300
94#define SCI_SET 0xf400
95
96/* return codes */
97#define HCI_SUCCESS 0x0000
98#define HCI_FAILURE 0x1000
99#define HCI_NOT_SUPPORTED 0x8000
100#define HCI_EMPTY 0x8c00
101#define HCI_DATA_NOT_AVAILABLE 0x8d20
102#define HCI_NOT_INITIALIZED 0x8d50
103#define SCI_OPEN_CLOSE_OK 0x0044
104#define SCI_ALREADY_OPEN 0x8100
105#define SCI_NOT_OPENED 0x8200
106#define SCI_INPUT_DATA_ERROR 0x8300
107#define SCI_NOT_PRESENT 0x8600
108
109/* registers */
110#define HCI_FAN 0x0004
111#define HCI_TR_BACKLIGHT 0x0005
112#define HCI_SYSTEM_EVENT 0x0016
113#define HCI_VIDEO_OUT 0x001c
114#define HCI_HOTKEY_EVENT 0x001e
115#define HCI_LCD_BRIGHTNESS 0x002a
116#define HCI_WIRELESS 0x0056
117#define HCI_ACCELEROMETER 0x006d
118#define HCI_KBD_ILLUMINATION 0x0095
119#define HCI_ECO_MODE 0x0097
120#define HCI_ACCELEROMETER2 0x00a6
121#define SCI_ILLUMINATION 0x014e
122#define SCI_KBD_ILLUM_STATUS 0x015c
123#define SCI_TOUCHPAD 0x050e
124
125/* field definitions */
126#define HCI_ACCEL_MASK 0x7fff
127#define HCI_HOTKEY_DISABLE 0x0b
128#define HCI_HOTKEY_ENABLE 0x09
129#define HCI_LCD_BRIGHTNESS_BITS 3
130#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
131#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
132#define HCI_MISC_SHIFT 0x10
133#define HCI_VIDEO_OUT_LCD 0x1
134#define HCI_VIDEO_OUT_CRT 0x2
135#define HCI_VIDEO_OUT_TV 0x4
136#define HCI_WIRELESS_KILL_SWITCH 0x01
137#define HCI_WIRELESS_BT_PRESENT 0x0f
138#define HCI_WIRELESS_BT_ATTACH 0x40
139#define HCI_WIRELESS_BT_POWER 0x80
140#define SCI_KBD_MODE_FNZ 0x1
141#define SCI_KBD_MODE_AUTO 0x2
142
143struct toshiba_acpi_dev {
144 struct acpi_device *acpi_dev;
145 const char *method_hci;
146 struct rfkill *bt_rfk;
147 struct input_dev *hotkey_dev;
148 struct work_struct hotkey_work;
149 struct backlight_device *backlight_dev;
150 struct led_classdev led_dev;
151 struct led_classdev kbd_led;
152 struct led_classdev eco_led;
153
154 int force_fan;
155 int last_key_event;
156 int key_event_valid;
157 int kbd_mode;
158 int kbd_time;
159
160 unsigned int illumination_supported:1;
161 unsigned int video_supported:1;
162 unsigned int fan_supported:1;
163 unsigned int system_event_supported:1;
164 unsigned int ntfy_supported:1;
165 unsigned int info_supported:1;
166 unsigned int tr_backlight_supported:1;
167 unsigned int kbd_illum_supported:1;
168 unsigned int kbd_led_registered:1;
169 unsigned int touchpad_supported:1;
170 unsigned int eco_supported:1;
171 unsigned int accelerometer_supported:1;
172 unsigned int sysfs_created:1;
173
174 struct mutex mutex;
175};
176
177static struct toshiba_acpi_dev *toshiba_acpi;
178
179static const struct acpi_device_id toshiba_device_ids[] = {
180 {"TOS6200", 0},
181 {"TOS6208", 0},
182 {"TOS1900", 0},
183 {"", 0},
184};
185MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
186
187static const struct key_entry toshiba_acpi_keymap[] = {
188 { KE_KEY, 0x9e, { KEY_RFKILL } },
189 { KE_KEY, 0x101, { KEY_MUTE } },
190 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
191 { KE_KEY, 0x103, { KEY_ZOOMIN } },
192 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
193 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
194 { KE_KEY, 0x13b, { KEY_COFFEE } },
195 { KE_KEY, 0x13c, { KEY_BATTERY } },
196 { KE_KEY, 0x13d, { KEY_SLEEP } },
197 { KE_KEY, 0x13e, { KEY_SUSPEND } },
198 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
199 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
200 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
201 { KE_KEY, 0x142, { KEY_WLAN } },
202 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
203 { KE_KEY, 0x17f, { KEY_FN } },
204 { KE_KEY, 0xb05, { KEY_PROG2 } },
205 { KE_KEY, 0xb06, { KEY_WWW } },
206 { KE_KEY, 0xb07, { KEY_MAIL } },
207 { KE_KEY, 0xb30, { KEY_STOP } },
208 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
209 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
210 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
211 { KE_KEY, 0xb5a, { KEY_MEDIA } },
212 { KE_IGNORE, 0x1430, { KEY_RESERVED } },
213 { KE_END, 0 },
214};
215
216/* utility
217 */
218
219static __inline__ void _set_bit(u32 * word, u32 mask, int value)
220{
221 *word = (*word & ~mask) | (mask * value);
222}
223
224/* acpi interface wrappers
225 */
226
227static int write_acpi_int(const char *methodName, int val)
228{
229 acpi_status status;
230
231 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
232 return (status == AE_OK) ? 0 : -EIO;
233}
234
235/* Perform a raw HCI call. Here we don't care about input or output buffer
236 * format.
237 */
238static acpi_status hci_raw(struct toshiba_acpi_dev *dev,
239 const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
240{
241 struct acpi_object_list params;
242 union acpi_object in_objs[HCI_WORDS];
243 struct acpi_buffer results;
244 union acpi_object out_objs[HCI_WORDS + 1];
245 acpi_status status;
246 int i;
247
248 params.count = HCI_WORDS;
249 params.pointer = in_objs;
250 for (i = 0; i < HCI_WORDS; ++i) {
251 in_objs[i].type = ACPI_TYPE_INTEGER;
252 in_objs[i].integer.value = in[i];
253 }
254
255 results.length = sizeof(out_objs);
256 results.pointer = out_objs;
257
258 status = acpi_evaluate_object(dev->acpi_dev->handle,
259 (char *)dev->method_hci, ¶ms,
260 &results);
261 if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
262 for (i = 0; i < out_objs->package.count; ++i) {
263 out[i] = out_objs->package.elements[i].integer.value;
264 }
265 }
266
267 return status;
268}
269
270/* common hci tasks (get or set one or two value)
271 *
272 * In addition to the ACPI status, the HCI system returns a result which
273 * may be useful (such as "not supported").
274 */
275
276static acpi_status hci_write1(struct toshiba_acpi_dev *dev, u32 reg,
277 u32 in1, u32 *result)
278{
279 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
280 u32 out[HCI_WORDS];
281 acpi_status status = hci_raw(dev, in, out);
282 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
283 return status;
284}
285
286static acpi_status hci_read1(struct toshiba_acpi_dev *dev, u32 reg,
287 u32 *out1, u32 *result)
288{
289 u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
290 u32 out[HCI_WORDS];
291 acpi_status status = hci_raw(dev, in, out);
292 *out1 = out[2];
293 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
294 return status;
295}
296
297static acpi_status hci_write2(struct toshiba_acpi_dev *dev, u32 reg,
298 u32 in1, u32 in2, u32 *result)
299{
300 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
301 u32 out[HCI_WORDS];
302 acpi_status status = hci_raw(dev, in, out);
303 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
304 return status;
305}
306
307static acpi_status hci_read2(struct toshiba_acpi_dev *dev, u32 reg,
308 u32 *out1, u32 *out2, u32 *result)
309{
310 u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
311 u32 out[HCI_WORDS];
312 acpi_status status = hci_raw(dev, in, out);
313 *out1 = out[2];
314 *out2 = out[3];
315 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
316 return status;
317}
318
319/* common sci tasks
320 */
321
322static int sci_open(struct toshiba_acpi_dev *dev)
323{
324 u32 in[HCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
325 u32 out[HCI_WORDS];
326 acpi_status status;
327
328 status = hci_raw(dev, in, out);
329 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
330 pr_err("ACPI call to open SCI failed\n");
331 return 0;
332 }
333
334 if (out[0] == SCI_OPEN_CLOSE_OK) {
335 return 1;
336 } else if (out[0] == SCI_ALREADY_OPEN) {
337 pr_info("Toshiba SCI already opened\n");
338 return 1;
339 } else if (out[0] == SCI_NOT_PRESENT) {
340 pr_info("Toshiba SCI is not present\n");
341 }
342
343 return 0;
344}
345
346static void sci_close(struct toshiba_acpi_dev *dev)
347{
348 u32 in[HCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
349 u32 out[HCI_WORDS];
350 acpi_status status;
351
352 status = hci_raw(dev, in, out);
353 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
354 pr_err("ACPI call to close SCI failed\n");
355 return;
356 }
357
358 if (out[0] == SCI_OPEN_CLOSE_OK)
359 return;
360 else if (out[0] == SCI_NOT_OPENED)
361 pr_info("Toshiba SCI not opened\n");
362 else if (out[0] == SCI_NOT_PRESENT)
363 pr_info("Toshiba SCI is not present\n");
364}
365
366static acpi_status sci_read(struct toshiba_acpi_dev *dev, u32 reg,
367 u32 *out1, u32 *result)
368{
369 u32 in[HCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
370 u32 out[HCI_WORDS];
371 acpi_status status = hci_raw(dev, in, out);
372 *out1 = out[2];
373 *result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
374 return status;
375}
376
377static acpi_status sci_write(struct toshiba_acpi_dev *dev, u32 reg,
378 u32 in1, u32 *result)
379{
380 u32 in[HCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
381 u32 out[HCI_WORDS];
382 acpi_status status = hci_raw(dev, in, out);
383 *result = (ACPI_SUCCESS(status)) ? out[0] : HCI_FAILURE;
384 return status;
385}
386
387/* Illumination support */
388static int toshiba_illumination_available(struct toshiba_acpi_dev *dev)
389{
390 u32 in[HCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
391 u32 out[HCI_WORDS];
392 acpi_status status;
393
394 if (!sci_open(dev))
395 return 0;
396
397 status = hci_raw(dev, in, out);
398 sci_close(dev);
399 if (ACPI_FAILURE(status) || out[0] == HCI_FAILURE) {
400 pr_err("ACPI call to query Illumination support failed\n");
401 return 0;
402 } else if (out[0] == HCI_NOT_SUPPORTED || out[1] != 1) {
403 pr_info("Illumination device not available\n");
404 return 0;
405 }
406
407 return 1;
408}
409
410static void toshiba_illumination_set(struct led_classdev *cdev,
411 enum led_brightness brightness)
412{
413 struct toshiba_acpi_dev *dev = container_of(cdev,
414 struct toshiba_acpi_dev, led_dev);
415 u32 state, result;
416 acpi_status status;
417
418 /* First request : initialize communication. */
419 if (!sci_open(dev))
420 return;
421
422 /* Switch the illumination on/off */
423 state = brightness ? 1 : 0;
424 status = sci_write(dev, SCI_ILLUMINATION, state, &result);
425 sci_close(dev);
426 if (ACPI_FAILURE(status)) {
427 pr_err("ACPI call for illumination failed\n");
428 return;
429 } else if (result == HCI_NOT_SUPPORTED) {
430 pr_info("Illumination not supported\n");
431 return;
432 }
433}
434
435static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
436{
437 struct toshiba_acpi_dev *dev = container_of(cdev,
438 struct toshiba_acpi_dev, led_dev);
439 u32 state, result;
440 acpi_status status;
441
442 /*Â First request : initialize communication. */
443 if (!sci_open(dev))
444 return LED_OFF;
445
446 /* Check the illumination */
447 status = sci_read(dev, SCI_ILLUMINATION, &state, &result);
448 sci_close(dev);
449 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
450 pr_err("ACPI call for illumination failed\n");
451 return LED_OFF;
452 } else if (result == HCI_NOT_SUPPORTED) {
453 pr_info("Illumination not supported\n");
454 return LED_OFF;
455 }
456
457 return state ? LED_FULL : LED_OFF;
458}
459
460/* KBD Illumination */
461static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
462{
463 u32 result;
464 acpi_status status;
465
466 if (!sci_open(dev))
467 return -EIO;
468
469 status = sci_write(dev, SCI_KBD_ILLUM_STATUS, time, &result);
470 sci_close(dev);
471 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
472 pr_err("ACPI call to set KBD backlight status failed\n");
473 return -EIO;
474 } else if (result == HCI_NOT_SUPPORTED) {
475 pr_info("Keyboard backlight status not supported\n");
476 return -ENODEV;
477 }
478
479 return 0;
480}
481
482static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
483{
484 u32 result;
485 acpi_status status;
486
487 if (!sci_open(dev))
488 return -EIO;
489
490 status = sci_read(dev, SCI_KBD_ILLUM_STATUS, time, &result);
491 sci_close(dev);
492 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
493 pr_err("ACPI call to get KBD backlight status failed\n");
494 return -EIO;
495 } else if (result == HCI_NOT_SUPPORTED) {
496 pr_info("Keyboard backlight status not supported\n");
497 return -ENODEV;
498 }
499
500 return 0;
501}
502
503static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
504{
505 struct toshiba_acpi_dev *dev = container_of(cdev,
506 struct toshiba_acpi_dev, kbd_led);
507 u32 state, result;
508 acpi_status status;
509
510 /* Check the keyboard backlight state */
511 status = hci_read1(dev, HCI_KBD_ILLUMINATION, &state, &result);
512 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
513 pr_err("ACPI call to get the keyboard backlight failed\n");
514 return LED_OFF;
515 } else if (result == HCI_NOT_SUPPORTED) {
516 pr_info("Keyboard backlight not supported\n");
517 return LED_OFF;
518 }
519
520 return state ? LED_FULL : LED_OFF;
521}
522
523static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
524 enum led_brightness brightness)
525{
526 struct toshiba_acpi_dev *dev = container_of(cdev,
527 struct toshiba_acpi_dev, kbd_led);
528 u32 state, result;
529 acpi_status status;
530
531 /* Set the keyboard backlight state */
532 state = brightness ? 1 : 0;
533 status = hci_write1(dev, HCI_KBD_ILLUMINATION, state, &result);
534 if (ACPI_FAILURE(status) || result == SCI_INPUT_DATA_ERROR) {
535 pr_err("ACPI call to set KBD Illumination mode failed\n");
536 return;
537 } else if (result == HCI_NOT_SUPPORTED) {
538 pr_info("Keyboard backlight not supported\n");
539 return;
540 }
541}
542
543/* TouchPad support */
544static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
545{
546 u32 result;
547 acpi_status status;
548
549 if (!sci_open(dev))
550 return -EIO;
551
552 status = sci_write(dev, SCI_TOUCHPAD, state, &result);
553 sci_close(dev);
554 if (ACPI_FAILURE(status)) {
555 pr_err("ACPI call to set the touchpad failed\n");
556 return -EIO;
557 } else if (result == HCI_NOT_SUPPORTED) {
558 return -ENODEV;
559 }
560
561 return 0;
562}
563
564static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
565{
566 u32 result;
567 acpi_status status;
568
569 if (!sci_open(dev))
570 return -EIO;
571
572 status = sci_read(dev, SCI_TOUCHPAD, state, &result);
573 sci_close(dev);
574 if (ACPI_FAILURE(status)) {
575 pr_err("ACPI call to query the touchpad failed\n");
576 return -EIO;
577 } else if (result == HCI_NOT_SUPPORTED) {
578 return -ENODEV;
579 }
580
581 return 0;
582}
583
584/* Eco Mode support */
585static int toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
586{
587 acpi_status status;
588 u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
589 u32 out[HCI_WORDS];
590
591 status = hci_raw(dev, in, out);
592 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
593 pr_info("ACPI call to get ECO led failed\n");
594 return 0;
595 }
596
597 return 1;
598}
599
600static enum led_brightness toshiba_eco_mode_get_status(struct led_classdev *cdev)
601{
602 struct toshiba_acpi_dev *dev = container_of(cdev,
603 struct toshiba_acpi_dev, eco_led);
604 u32 in[HCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
605 u32 out[HCI_WORDS];
606 acpi_status status;
607
608 status = hci_raw(dev, in, out);
609 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
610 pr_err("ACPI call to get ECO led failed\n");
611 return LED_OFF;
612 }
613
614 return out[2] ? LED_FULL : LED_OFF;
615}
616
617static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
618 enum led_brightness brightness)
619{
620 struct toshiba_acpi_dev *dev = container_of(cdev,
621 struct toshiba_acpi_dev, eco_led);
622 u32 in[HCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
623 u32 out[HCI_WORDS];
624 acpi_status status;
625
626 /* Switch the Eco Mode led on/off */
627 in[2] = (brightness) ? 1 : 0;
628 status = hci_raw(dev, in, out);
629 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
630 pr_err("ACPI call to set ECO led failed\n");
631 return;
632 }
633}
634
635/* Accelerometer support */
636static int toshiba_accelerometer_supported(struct toshiba_acpi_dev *dev)
637{
638 u32 in[HCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
639 u32 out[HCI_WORDS];
640 acpi_status status;
641
642 /* Check if the accelerometer call exists,
643 * this call also serves as initialization
644 */
645 status = hci_raw(dev, in, out);
646 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
647 pr_err("ACPI call to query the accelerometer failed\n");
648 return -EIO;
649 } else if (out[0] == HCI_DATA_NOT_AVAILABLE ||
650 out[0] == HCI_NOT_INITIALIZED) {
651 pr_err("Accelerometer not initialized\n");
652 return -EIO;
653 } else if (out[0] == HCI_NOT_SUPPORTED) {
654 pr_info("Accelerometer not supported\n");
655 return -ENODEV;
656 }
657
658 return 0;
659}
660
661static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
662 u32 *xy, u32 *z)
663{
664 u32 in[HCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
665 u32 out[HCI_WORDS];
666 acpi_status status;
667
668 /* Check the Accelerometer status */
669 status = hci_raw(dev, in, out);
670 if (ACPI_FAILURE(status) || out[0] == SCI_INPUT_DATA_ERROR) {
671 pr_err("ACPI call to query the accelerometer failed\n");
672 return -EIO;
673 }
674
675 *xy = out[2];
676 *z = out[4];
677
678 return 0;
679}
680
681/* Bluetooth rfkill handlers */
682
683static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present)
684{
685 u32 hci_result;
686 u32 value, value2;
687
688 value = 0;
689 value2 = 0;
690 hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result);
691 if (hci_result == HCI_SUCCESS)
692 *present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false;
693
694 return hci_result;
695}
696
697static u32 hci_get_radio_state(struct toshiba_acpi_dev *dev, bool *radio_state)
698{
699 u32 hci_result;
700 u32 value, value2;
701
702 value = 0;
703 value2 = 0x0001;
704 hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result);
705
706 *radio_state = value & HCI_WIRELESS_KILL_SWITCH;
707 return hci_result;
708}
709
710static int bt_rfkill_set_block(void *data, bool blocked)
711{
712 struct toshiba_acpi_dev *dev = data;
713 u32 result1, result2;
714 u32 value;
715 int err;
716 bool radio_state;
717
718 value = (blocked == false);
719
720 mutex_lock(&dev->mutex);
721 if (hci_get_radio_state(dev, &radio_state) != HCI_SUCCESS) {
722 err = -EIO;
723 goto out;
724 }
725
726 if (!radio_state) {
727 err = 0;
728 goto out;
729 }
730
731 hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1);
732 hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2);
733
734 if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS)
735 err = -EIO;
736 else
737 err = 0;
738 out:
739 mutex_unlock(&dev->mutex);
740 return err;
741}
742
743static void bt_rfkill_poll(struct rfkill *rfkill, void *data)
744{
745 bool new_rfk_state;
746 bool value;
747 u32 hci_result;
748 struct toshiba_acpi_dev *dev = data;
749
750 mutex_lock(&dev->mutex);
751
752 hci_result = hci_get_radio_state(dev, &value);
753 if (hci_result != HCI_SUCCESS) {
754 /* Can't do anything useful */
755 mutex_unlock(&dev->mutex);
756 return;
757 }
758
759 new_rfk_state = value;
760
761 mutex_unlock(&dev->mutex);
762
763 if (rfkill_set_hw_state(rfkill, !new_rfk_state))
764 bt_rfkill_set_block(data, true);
765}
766
767static const struct rfkill_ops toshiba_rfk_ops = {
768 .set_block = bt_rfkill_set_block,
769 .poll = bt_rfkill_poll,
770};
771
772static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, bool *enabled)
773{
774 u32 hci_result;
775 u32 status;
776
777 hci_read1(dev, HCI_TR_BACKLIGHT, &status, &hci_result);
778 *enabled = !status;
779 return hci_result == HCI_SUCCESS ? 0 : -EIO;
780}
781
782static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, bool enable)
783{
784 u32 hci_result;
785 u32 value = !enable;
786
787 hci_write1(dev, HCI_TR_BACKLIGHT, value, &hci_result);
788 return hci_result == HCI_SUCCESS ? 0 : -EIO;
789}
790
791static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
792
793static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
794{
795 u32 hci_result;
796 u32 value;
797 int brightness = 0;
798
799 if (dev->tr_backlight_supported) {
800 bool enabled;
801 int ret = get_tr_backlight_status(dev, &enabled);
802 if (ret)
803 return ret;
804 if (enabled)
805 return 0;
806 brightness++;
807 }
808
809 hci_read1(dev, HCI_LCD_BRIGHTNESS, &value, &hci_result);
810 if (hci_result == HCI_SUCCESS)
811 return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
812
813 return -EIO;
814}
815
816static int get_lcd_brightness(struct backlight_device *bd)
817{
818 struct toshiba_acpi_dev *dev = bl_get_data(bd);
819 return __get_lcd_brightness(dev);
820}
821
822static int lcd_proc_show(struct seq_file *m, void *v)
823{
824 struct toshiba_acpi_dev *dev = m->private;
825 int value;
826 int levels;
827
828 if (!dev->backlight_dev)
829 return -ENODEV;
830
831 levels = dev->backlight_dev->props.max_brightness + 1;
832 value = get_lcd_brightness(dev->backlight_dev);
833 if (value >= 0) {
834 seq_printf(m, "brightness: %d\n", value);
835 seq_printf(m, "brightness_levels: %d\n", levels);
836 return 0;
837 }
838
839 pr_err("Error reading LCD brightness\n");
840 return -EIO;
841}
842
843static int lcd_proc_open(struct inode *inode, struct file *file)
844{
845 return single_open(file, lcd_proc_show, PDE_DATA(inode));
846}
847
848static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
849{
850 u32 hci_result;
851
852 if (dev->tr_backlight_supported) {
853 bool enable = !value;
854 int ret = set_tr_backlight_status(dev, enable);
855 if (ret)
856 return ret;
857 if (value)
858 value--;
859 }
860
861 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
862 hci_write1(dev, HCI_LCD_BRIGHTNESS, value, &hci_result);
863 return hci_result == HCI_SUCCESS ? 0 : -EIO;
864}
865
866static int set_lcd_status(struct backlight_device *bd)
867{
868 struct toshiba_acpi_dev *dev = bl_get_data(bd);
869 return set_lcd_brightness(dev, bd->props.brightness);
870}
871
872static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
873 size_t count, loff_t *pos)
874{
875 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
876 char cmd[42];
877 size_t len;
878 int value;
879 int ret;
880 int levels = dev->backlight_dev->props.max_brightness + 1;
881
882 len = min(count, sizeof(cmd) - 1);
883 if (copy_from_user(cmd, buf, len))
884 return -EFAULT;
885 cmd[len] = '\0';
886
887 if (sscanf(cmd, " brightness : %i", &value) == 1 &&
888 value >= 0 && value < levels) {
889 ret = set_lcd_brightness(dev, value);
890 if (ret == 0)
891 ret = count;
892 } else {
893 ret = -EINVAL;
894 }
895 return ret;
896}
897
898static const struct file_operations lcd_proc_fops = {
899 .owner = THIS_MODULE,
900 .open = lcd_proc_open,
901 .read = seq_read,
902 .llseek = seq_lseek,
903 .release = single_release,
904 .write = lcd_proc_write,
905};
906
907static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
908{
909 u32 hci_result;
910
911 hci_read1(dev, HCI_VIDEO_OUT, status, &hci_result);
912 return hci_result == HCI_SUCCESS ? 0 : -EIO;
913}
914
915static int video_proc_show(struct seq_file *m, void *v)
916{
917 struct toshiba_acpi_dev *dev = m->private;
918 u32 value;
919 int ret;
920
921 ret = get_video_status(dev, &value);
922 if (!ret) {
923 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
924 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
925 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
926 seq_printf(m, "lcd_out: %d\n", is_lcd);
927 seq_printf(m, "crt_out: %d\n", is_crt);
928 seq_printf(m, "tv_out: %d\n", is_tv);
929 }
930
931 return ret;
932}
933
934static int video_proc_open(struct inode *inode, struct file *file)
935{
936 return single_open(file, video_proc_show, PDE_DATA(inode));
937}
938
939static ssize_t video_proc_write(struct file *file, const char __user *buf,
940 size_t count, loff_t *pos)
941{
942 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
943 char *cmd, *buffer;
944 int ret;
945 int value;
946 int remain = count;
947 int lcd_out = -1;
948 int crt_out = -1;
949 int tv_out = -1;
950 u32 video_out;
951
952 cmd = kmalloc(count + 1, GFP_KERNEL);
953 if (!cmd)
954 return -ENOMEM;
955 if (copy_from_user(cmd, buf, count)) {
956 kfree(cmd);
957 return -EFAULT;
958 }
959 cmd[count] = '\0';
960
961 buffer = cmd;
962
963 /* scan expression. Multiple expressions may be delimited with ;
964 *
965 * NOTE: to keep scanning simple, invalid fields are ignored
966 */
967 while (remain) {
968 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
969 lcd_out = value & 1;
970 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
971 crt_out = value & 1;
972 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
973 tv_out = value & 1;
974 /* advance to one character past the next ; */
975 do {
976 ++buffer;
977 --remain;
978 }
979 while (remain && *(buffer - 1) != ';');
980 }
981
982 kfree(cmd);
983
984 ret = get_video_status(dev, &video_out);
985 if (!ret) {
986 unsigned int new_video_out = video_out;
987 if (lcd_out != -1)
988 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
989 if (crt_out != -1)
990 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
991 if (tv_out != -1)
992 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
993 /* To avoid unnecessary video disruption, only write the new
994 * video setting if something changed. */
995 if (new_video_out != video_out)
996 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
997 }
998
999 return ret ? ret : count;
1000}
1001
1002static const struct file_operations video_proc_fops = {
1003 .owner = THIS_MODULE,
1004 .open = video_proc_open,
1005 .read = seq_read,
1006 .llseek = seq_lseek,
1007 .release = single_release,
1008 .write = video_proc_write,
1009};
1010
1011static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1012{
1013 u32 hci_result;
1014
1015 hci_read1(dev, HCI_FAN, status, &hci_result);
1016 return hci_result == HCI_SUCCESS ? 0 : -EIO;
1017}
1018
1019static int fan_proc_show(struct seq_file *m, void *v)
1020{
1021 struct toshiba_acpi_dev *dev = m->private;
1022 int ret;
1023 u32 value;
1024
1025 ret = get_fan_status(dev, &value);
1026 if (!ret) {
1027 seq_printf(m, "running: %d\n", (value > 0));
1028 seq_printf(m, "force_on: %d\n", dev->force_fan);
1029 }
1030
1031 return ret;
1032}
1033
1034static int fan_proc_open(struct inode *inode, struct file *file)
1035{
1036 return single_open(file, fan_proc_show, PDE_DATA(inode));
1037}
1038
1039static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1040 size_t count, loff_t *pos)
1041{
1042 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1043 char cmd[42];
1044 size_t len;
1045 int value;
1046 u32 hci_result;
1047
1048 len = min(count, sizeof(cmd) - 1);
1049 if (copy_from_user(cmd, buf, len))
1050 return -EFAULT;
1051 cmd[len] = '\0';
1052
1053 if (sscanf(cmd, " force_on : %i", &value) == 1 &&
1054 value >= 0 && value <= 1) {
1055 hci_write1(dev, HCI_FAN, value, &hci_result);
1056 if (hci_result != HCI_SUCCESS)
1057 return -EIO;
1058 else
1059 dev->force_fan = value;
1060 } else {
1061 return -EINVAL;
1062 }
1063
1064 return count;
1065}
1066
1067static const struct file_operations fan_proc_fops = {
1068 .owner = THIS_MODULE,
1069 .open = fan_proc_open,
1070 .read = seq_read,
1071 .llseek = seq_lseek,
1072 .release = single_release,
1073 .write = fan_proc_write,
1074};
1075
1076static int keys_proc_show(struct seq_file *m, void *v)
1077{
1078 struct toshiba_acpi_dev *dev = m->private;
1079 u32 hci_result;
1080 u32 value;
1081
1082 if (!dev->key_event_valid && dev->system_event_supported) {
1083 hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
1084 if (hci_result == HCI_SUCCESS) {
1085 dev->key_event_valid = 1;
1086 dev->last_key_event = value;
1087 } else if (hci_result == HCI_EMPTY) {
1088 /* better luck next time */
1089 } else if (hci_result == HCI_NOT_SUPPORTED) {
1090 /* This is a workaround for an unresolved issue on
1091 * some machines where system events sporadically
1092 * become disabled. */
1093 hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
1094 pr_notice("Re-enabled hotkeys\n");
1095 } else {
1096 pr_err("Error reading hotkey status\n");
1097 return -EIO;
1098 }
1099 }
1100
1101 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1102 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1103 return 0;
1104}
1105
1106static int keys_proc_open(struct inode *inode, struct file *file)
1107{
1108 return single_open(file, keys_proc_show, PDE_DATA(inode));
1109}
1110
1111static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1112 size_t count, loff_t *pos)
1113{
1114 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1115 char cmd[42];
1116 size_t len;
1117 int value;
1118
1119 len = min(count, sizeof(cmd) - 1);
1120 if (copy_from_user(cmd, buf, len))
1121 return -EFAULT;
1122 cmd[len] = '\0';
1123
1124 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) {
1125 dev->key_event_valid = 0;
1126 } else {
1127 return -EINVAL;
1128 }
1129
1130 return count;
1131}
1132
1133static const struct file_operations keys_proc_fops = {
1134 .owner = THIS_MODULE,
1135 .open = keys_proc_open,
1136 .read = seq_read,
1137 .llseek = seq_lseek,
1138 .release = single_release,
1139 .write = keys_proc_write,
1140};
1141
1142static int version_proc_show(struct seq_file *m, void *v)
1143{
1144 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1145 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1146 return 0;
1147}
1148
1149static int version_proc_open(struct inode *inode, struct file *file)
1150{
1151 return single_open(file, version_proc_show, PDE_DATA(inode));
1152}
1153
1154static const struct file_operations version_proc_fops = {
1155 .owner = THIS_MODULE,
1156 .open = version_proc_open,
1157 .read = seq_read,
1158 .llseek = seq_lseek,
1159 .release = single_release,
1160};
1161
1162/* proc and module init
1163 */
1164
1165#define PROC_TOSHIBA "toshiba"
1166
1167static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1168{
1169 if (dev->backlight_dev)
1170 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1171 &lcd_proc_fops, dev);
1172 if (dev->video_supported)
1173 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1174 &video_proc_fops, dev);
1175 if (dev->fan_supported)
1176 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1177 &fan_proc_fops, dev);
1178 if (dev->hotkey_dev)
1179 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1180 &keys_proc_fops, dev);
1181 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1182 &version_proc_fops, dev);
1183}
1184
1185static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1186{
1187 if (dev->backlight_dev)
1188 remove_proc_entry("lcd", toshiba_proc_dir);
1189 if (dev->video_supported)
1190 remove_proc_entry("video", toshiba_proc_dir);
1191 if (dev->fan_supported)
1192 remove_proc_entry("fan", toshiba_proc_dir);
1193 if (dev->hotkey_dev)
1194 remove_proc_entry("keys", toshiba_proc_dir);
1195 remove_proc_entry("version", toshiba_proc_dir);
1196}
1197
1198static const struct backlight_ops toshiba_backlight_data = {
1199 .options = BL_CORE_SUSPENDRESUME,
1200 .get_brightness = get_lcd_brightness,
1201 .update_status = set_lcd_status,
1202};
1203
1204/*
1205 * Sysfs files
1206 */
1207
1208static ssize_t toshiba_kbd_bl_mode_store(struct device *dev,
1209 struct device_attribute *attr,
1210 const char *buf, size_t count)
1211{
1212 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1213 int mode = -1;
1214 int time = -1;
1215
1216 if (sscanf(buf, "%i", &mode) != 1 && (mode != 2 || mode != 1))
1217 return -EINVAL;
1218
1219 /* Set the Keyboard Backlight Mode where:
1220 * Mode - Auto (2) | FN-Z (1)
1221 * Auto - KBD backlight turns off automatically in given time
1222 * FN-Z - KBD backlight "toggles" when hotkey pressed
1223 */
1224 if (mode != -1 && toshiba->kbd_mode != mode) {
1225 time = toshiba->kbd_time << HCI_MISC_SHIFT;
1226 time = time + toshiba->kbd_mode;
1227 if (toshiba_kbd_illum_status_set(toshiba, time) < 0)
1228 return -EIO;
1229 toshiba->kbd_mode = mode;
1230 }
1231
1232 return count;
1233}
1234
1235static ssize_t toshiba_kbd_bl_mode_show(struct device *dev,
1236 struct device_attribute *attr,
1237 char *buf)
1238{
1239 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1240 u32 time;
1241
1242 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1243 return -EIO;
1244
1245 return sprintf(buf, "%i\n", time & 0x07);
1246}
1247
1248static ssize_t toshiba_kbd_bl_timeout_store(struct device *dev,
1249 struct device_attribute *attr,
1250 const char *buf, size_t count)
1251{
1252 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1253 int time = -1;
1254
1255 if (sscanf(buf, "%i", &time) != 1 && (time < 0 || time > 60))
1256 return -EINVAL;
1257
1258 /* Set the Keyboard Backlight Timeout: 0-60 seconds */
1259 if (time != -1 && toshiba->kbd_time != time) {
1260 time = time << HCI_MISC_SHIFT;
1261 time = (toshiba->kbd_mode == SCI_KBD_MODE_AUTO) ?
1262 time + 1 : time + 2;
1263 if (toshiba_kbd_illum_status_set(toshiba, time) < 0)
1264 return -EIO;
1265 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1266 }
1267
1268 return count;
1269}
1270
1271static ssize_t toshiba_kbd_bl_timeout_show(struct device *dev,
1272 struct device_attribute *attr,
1273 char *buf)
1274{
1275 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1276 u32 time;
1277
1278 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1279 return -EIO;
1280
1281 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1282}
1283
1284static ssize_t toshiba_touchpad_store(struct device *dev,
1285 struct device_attribute *attr,
1286 const char *buf, size_t count)
1287{
1288 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1289 int state;
1290
1291 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1292 if (sscanf(buf, "%i", &state) == 1 && (state == 0 || state == 1)) {
1293 if (toshiba_touchpad_set(toshiba, state) < 0)
1294 return -EIO;
1295 }
1296
1297 return count;
1298}
1299
1300static ssize_t toshiba_touchpad_show(struct device *dev,
1301 struct device_attribute *attr, char *buf)
1302{
1303 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1304 u32 state;
1305 int ret;
1306
1307 ret = toshiba_touchpad_get(toshiba, &state);
1308 if (ret < 0)
1309 return ret;
1310
1311 return sprintf(buf, "%i\n", state);
1312}
1313
1314static ssize_t toshiba_position_show(struct device *dev,
1315 struct device_attribute *attr, char *buf)
1316{
1317 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1318 u32 xyval, zval, tmp;
1319 u16 x, y, z;
1320 int ret;
1321
1322 xyval = zval = 0;
1323 ret = toshiba_accelerometer_get(toshiba, &xyval, &zval);
1324 if (ret < 0)
1325 return ret;
1326
1327 x = xyval & HCI_ACCEL_MASK;
1328 tmp = xyval >> HCI_MISC_SHIFT;
1329 y = tmp & HCI_ACCEL_MASK;
1330 z = zval & HCI_ACCEL_MASK;
1331
1332 return sprintf(buf, "%d %d %d\n", x, y, z);
1333}
1334
1335static DEVICE_ATTR(kbd_backlight_mode, S_IRUGO | S_IWUSR,
1336 toshiba_kbd_bl_mode_show, toshiba_kbd_bl_mode_store);
1337static DEVICE_ATTR(kbd_backlight_timeout, S_IRUGO | S_IWUSR,
1338 toshiba_kbd_bl_timeout_show, toshiba_kbd_bl_timeout_store);
1339static DEVICE_ATTR(touchpad, S_IRUGO | S_IWUSR,
1340 toshiba_touchpad_show, toshiba_touchpad_store);
1341static DEVICE_ATTR(position, S_IRUGO, toshiba_position_show, NULL);
1342
1343static struct attribute *toshiba_attributes[] = {
1344 &dev_attr_kbd_backlight_mode.attr,
1345 &dev_attr_kbd_backlight_timeout.attr,
1346 &dev_attr_touchpad.attr,
1347 &dev_attr_position.attr,
1348 NULL,
1349};
1350
1351static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
1352 struct attribute *attr, int idx)
1353{
1354 struct device *dev = container_of(kobj, struct device, kobj);
1355 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
1356 bool exists = true;
1357
1358 if (attr == &dev_attr_kbd_backlight_mode.attr)
1359 exists = (drv->kbd_illum_supported) ? true : false;
1360 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
1361 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
1362 else if (attr == &dev_attr_touchpad.attr)
1363 exists = (drv->touchpad_supported) ? true : false;
1364 else if (attr == &dev_attr_position.attr)
1365 exists = (drv->accelerometer_supported) ? true : false;
1366
1367 return exists ? attr->mode : 0;
1368}
1369
1370static struct attribute_group toshiba_attr_group = {
1371 .is_visible = toshiba_sysfs_is_visible,
1372 .attrs = toshiba_attributes,
1373};
1374
1375static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
1376 struct serio *port)
1377{
1378 if (str & 0x20)
1379 return false;
1380
1381 if (unlikely(data == 0xe0))
1382 return false;
1383
1384 if ((data & 0x7f) == TOS1900_FN_SCAN) {
1385 schedule_work(&toshiba_acpi->hotkey_work);
1386 return true;
1387 }
1388
1389 return false;
1390}
1391
1392static void toshiba_acpi_hotkey_work(struct work_struct *work)
1393{
1394 acpi_handle ec_handle = ec_get_handle();
1395 acpi_status status;
1396
1397 if (!ec_handle)
1398 return;
1399
1400 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
1401 if (ACPI_FAILURE(status))
1402 pr_err("ACPI NTFY method execution failed\n");
1403}
1404
1405/*
1406 * Returns hotkey scancode, or < 0 on failure.
1407 */
1408static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
1409{
1410 unsigned long long value;
1411 acpi_status status;
1412
1413 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
1414 NULL, &value);
1415 if (ACPI_FAILURE(status)) {
1416 pr_err("ACPI INFO method execution failed\n");
1417 return -EIO;
1418 }
1419
1420 return value;
1421}
1422
1423static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
1424 int scancode)
1425{
1426 if (scancode == 0x100)
1427 return;
1428
1429 /* act on key press; ignore key release */
1430 if (scancode & 0x80)
1431 return;
1432
1433 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
1434 pr_info("Unknown key %x\n", scancode);
1435}
1436
1437static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
1438{
1439 acpi_status status;
1440 acpi_handle ec_handle;
1441 int error;
1442 u32 hci_result;
1443
1444 dev->hotkey_dev = input_allocate_device();
1445 if (!dev->hotkey_dev)
1446 return -ENOMEM;
1447
1448 dev->hotkey_dev->name = "Toshiba input device";
1449 dev->hotkey_dev->phys = "toshiba_acpi/input0";
1450 dev->hotkey_dev->id.bustype = BUS_HOST;
1451
1452 error = sparse_keymap_setup(dev->hotkey_dev, toshiba_acpi_keymap, NULL);
1453 if (error)
1454 goto err_free_dev;
1455
1456 /*
1457 * For some machines the SCI responsible for providing hotkey
1458 * notification doesn't fire. We can trigger the notification
1459 * whenever the Fn key is pressed using the NTFY method, if
1460 * supported, so if it's present set up an i8042 key filter
1461 * for this purpose.
1462 */
1463 status = AE_ERROR;
1464 ec_handle = ec_get_handle();
1465 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
1466 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
1467
1468 error = i8042_install_filter(toshiba_acpi_i8042_filter);
1469 if (error) {
1470 pr_err("Error installing key filter\n");
1471 goto err_free_keymap;
1472 }
1473
1474 dev->ntfy_supported = 1;
1475 }
1476
1477 /*
1478 * Determine hotkey query interface. Prefer using the INFO
1479 * method when it is available.
1480 */
1481 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
1482 dev->info_supported = 1;
1483 else {
1484 hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
1485 if (hci_result == HCI_SUCCESS)
1486 dev->system_event_supported = 1;
1487 }
1488
1489 if (!dev->info_supported && !dev->system_event_supported) {
1490 pr_warn("No hotkey query interface found\n");
1491 goto err_remove_filter;
1492 }
1493
1494 status = acpi_evaluate_object(dev->acpi_dev->handle, "ENAB", NULL, NULL);
1495 if (ACPI_FAILURE(status)) {
1496 pr_info("Unable to enable hotkeys\n");
1497 error = -ENODEV;
1498 goto err_remove_filter;
1499 }
1500
1501 error = input_register_device(dev->hotkey_dev);
1502 if (error) {
1503 pr_info("Unable to register input device\n");
1504 goto err_remove_filter;
1505 }
1506
1507 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &hci_result);
1508 return 0;
1509
1510 err_remove_filter:
1511 if (dev->ntfy_supported)
1512 i8042_remove_filter(toshiba_acpi_i8042_filter);
1513 err_free_keymap:
1514 sparse_keymap_free(dev->hotkey_dev);
1515 err_free_dev:
1516 input_free_device(dev->hotkey_dev);
1517 dev->hotkey_dev = NULL;
1518 return error;
1519}
1520
1521static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
1522{
1523 struct backlight_properties props;
1524 int brightness;
1525 int ret;
1526 bool enabled;
1527
1528 /*
1529 * Some machines don't support the backlight methods at all, and
1530 * others support it read-only. Either of these is pretty useless,
1531 * so only register the backlight device if the backlight method
1532 * supports both reads and writes.
1533 */
1534 brightness = __get_lcd_brightness(dev);
1535 if (brightness < 0)
1536 return 0;
1537 ret = set_lcd_brightness(dev, brightness);
1538 if (ret) {
1539 pr_debug("Backlight method is read-only, disabling backlight support\n");
1540 return 0;
1541 }
1542
1543 /* Determine whether or not BIOS supports transflective backlight */
1544 ret = get_tr_backlight_status(dev, &enabled);
1545 dev->tr_backlight_supported = !ret;
1546
1547 memset(&props, 0, sizeof(props));
1548 props.type = BACKLIGHT_PLATFORM;
1549 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
1550
1551 /* adding an extra level and having 0 change to transflective mode */
1552 if (dev->tr_backlight_supported)
1553 props.max_brightness++;
1554
1555 dev->backlight_dev = backlight_device_register("toshiba",
1556 &dev->acpi_dev->dev,
1557 dev,
1558 &toshiba_backlight_data,
1559 &props);
1560 if (IS_ERR(dev->backlight_dev)) {
1561 ret = PTR_ERR(dev->backlight_dev);
1562 pr_err("Could not register toshiba backlight device\n");
1563 dev->backlight_dev = NULL;
1564 return ret;
1565 }
1566
1567 dev->backlight_dev->props.brightness = brightness;
1568 return 0;
1569}
1570
1571static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
1572{
1573 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
1574
1575 remove_toshiba_proc_entries(dev);
1576
1577 if (dev->sysfs_created)
1578 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
1579 &toshiba_attr_group);
1580
1581 if (dev->ntfy_supported) {
1582 i8042_remove_filter(toshiba_acpi_i8042_filter);
1583 cancel_work_sync(&dev->hotkey_work);
1584 }
1585
1586 if (dev->hotkey_dev) {
1587 input_unregister_device(dev->hotkey_dev);
1588 sparse_keymap_free(dev->hotkey_dev);
1589 }
1590
1591 if (dev->bt_rfk) {
1592 rfkill_unregister(dev->bt_rfk);
1593 rfkill_destroy(dev->bt_rfk);
1594 }
1595
1596 if (dev->backlight_dev)
1597 backlight_device_unregister(dev->backlight_dev);
1598
1599 if (dev->illumination_supported)
1600 led_classdev_unregister(&dev->led_dev);
1601
1602 if (dev->kbd_led_registered)
1603 led_classdev_unregister(&dev->kbd_led);
1604
1605 if (dev->eco_supported)
1606 led_classdev_unregister(&dev->eco_led);
1607
1608 if (toshiba_acpi)
1609 toshiba_acpi = NULL;
1610
1611 kfree(dev);
1612
1613 return 0;
1614}
1615
1616static const char *find_hci_method(acpi_handle handle)
1617{
1618 if (acpi_has_method(handle, "GHCI"))
1619 return "GHCI";
1620
1621 if (acpi_has_method(handle, "SPFC"))
1622 return "SPFC";
1623
1624 return NULL;
1625}
1626
1627static int toshiba_acpi_add(struct acpi_device *acpi_dev)
1628{
1629 struct toshiba_acpi_dev *dev;
1630 const char *hci_method;
1631 u32 dummy;
1632 bool bt_present;
1633 int ret = 0;
1634
1635 if (toshiba_acpi)
1636 return -EBUSY;
1637
1638 pr_info("Toshiba Laptop ACPI Extras version %s\n",
1639 TOSHIBA_ACPI_VERSION);
1640
1641 hci_method = find_hci_method(acpi_dev->handle);
1642 if (!hci_method) {
1643 pr_err("HCI interface not found\n");
1644 return -ENODEV;
1645 }
1646
1647 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1648 if (!dev)
1649 return -ENOMEM;
1650 dev->acpi_dev = acpi_dev;
1651 dev->method_hci = hci_method;
1652 acpi_dev->driver_data = dev;
1653 dev_set_drvdata(&acpi_dev->dev, dev);
1654
1655 if (toshiba_acpi_setup_keyboard(dev))
1656 pr_info("Unable to activate hotkeys\n");
1657
1658 mutex_init(&dev->mutex);
1659
1660 ret = toshiba_acpi_setup_backlight(dev);
1661 if (ret)
1662 goto error;
1663
1664 /* Register rfkill switch for Bluetooth */
1665 if (hci_get_bt_present(dev, &bt_present) == HCI_SUCCESS && bt_present) {
1666 dev->bt_rfk = rfkill_alloc("Toshiba Bluetooth",
1667 &acpi_dev->dev,
1668 RFKILL_TYPE_BLUETOOTH,
1669 &toshiba_rfk_ops,
1670 dev);
1671 if (!dev->bt_rfk) {
1672 pr_err("unable to allocate rfkill device\n");
1673 ret = -ENOMEM;
1674 goto error;
1675 }
1676
1677 ret = rfkill_register(dev->bt_rfk);
1678 if (ret) {
1679 pr_err("unable to register rfkill device\n");
1680 rfkill_destroy(dev->bt_rfk);
1681 goto error;
1682 }
1683 }
1684
1685 if (toshiba_illumination_available(dev)) {
1686 dev->led_dev.name = "toshiba::illumination";
1687 dev->led_dev.max_brightness = 1;
1688 dev->led_dev.brightness_set = toshiba_illumination_set;
1689 dev->led_dev.brightness_get = toshiba_illumination_get;
1690 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
1691 dev->illumination_supported = 1;
1692 }
1693
1694 if (toshiba_eco_mode_available(dev)) {
1695 dev->eco_led.name = "toshiba::eco_mode";
1696 dev->eco_led.max_brightness = 1;
1697 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
1698 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
1699 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
1700 dev->eco_supported = 1;
1701 }
1702
1703 ret = toshiba_kbd_illum_status_get(dev, &dummy);
1704 if (!ret) {
1705 dev->kbd_time = dummy >> HCI_MISC_SHIFT;
1706 dev->kbd_mode = dummy & 0x07;
1707 }
1708 dev->kbd_illum_supported = !ret;
1709 /*
1710 * Only register the LED if KBD illumination is supported
1711 * and the keyboard backlight operation mode is set to FN-Z
1712 */
1713 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
1714 dev->kbd_led.name = "toshiba::kbd_backlight";
1715 dev->kbd_led.max_brightness = 1;
1716 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
1717 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
1718 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
1719 dev->kbd_led_registered = 1;
1720 }
1721
1722 ret = toshiba_touchpad_get(dev, &dummy);
1723 dev->touchpad_supported = !ret;
1724
1725 ret = toshiba_accelerometer_supported(dev);
1726 dev->accelerometer_supported = !ret;
1727
1728 /* Determine whether or not BIOS supports fan and video interfaces */
1729
1730 ret = get_video_status(dev, &dummy);
1731 dev->video_supported = !ret;
1732
1733 ret = get_fan_status(dev, &dummy);
1734 dev->fan_supported = !ret;
1735
1736 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
1737 &toshiba_attr_group);
1738 if (ret) {
1739 dev->sysfs_created = 0;
1740 goto error;
1741 }
1742 dev->sysfs_created = !ret;
1743
1744 create_toshiba_proc_entries(dev);
1745
1746 toshiba_acpi = dev;
1747
1748 return 0;
1749
1750error:
1751 toshiba_acpi_remove(acpi_dev);
1752 return ret;
1753}
1754
1755static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
1756{
1757 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
1758 u32 hci_result, value;
1759 int retries = 3;
1760 int scancode;
1761
1762 if (event != 0x80)
1763 return;
1764
1765 if (dev->info_supported) {
1766 scancode = toshiba_acpi_query_hotkey(dev);
1767 if (scancode < 0)
1768 pr_err("Failed to query hotkey event\n");
1769 else if (scancode != 0)
1770 toshiba_acpi_report_hotkey(dev, scancode);
1771 } else if (dev->system_event_supported) {
1772 do {
1773 hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
1774 switch (hci_result) {
1775 case HCI_SUCCESS:
1776 toshiba_acpi_report_hotkey(dev, (int)value);
1777 break;
1778 case HCI_NOT_SUPPORTED:
1779 /*
1780 * This is a workaround for an unresolved
1781 * issue on some machines where system events
1782 * sporadically become disabled.
1783 */
1784 hci_write1(dev, HCI_SYSTEM_EVENT, 1,
1785 &hci_result);
1786 pr_notice("Re-enabled hotkeys\n");
1787 /* fall through */
1788 default:
1789 retries--;
1790 break;
1791 }
1792 } while (retries && hci_result != HCI_EMPTY);
1793 }
1794}
1795
1796#ifdef CONFIG_PM_SLEEP
1797static int toshiba_acpi_suspend(struct device *device)
1798{
1799 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
1800 u32 result;
1801
1802 if (dev->hotkey_dev)
1803 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE, &result);
1804
1805 return 0;
1806}
1807
1808static int toshiba_acpi_resume(struct device *device)
1809{
1810 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
1811 u32 result;
1812
1813 if (dev->hotkey_dev)
1814 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &result);
1815
1816 return 0;
1817}
1818#endif
1819
1820static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
1821 toshiba_acpi_suspend, toshiba_acpi_resume);
1822
1823static struct acpi_driver toshiba_acpi_driver = {
1824 .name = "Toshiba ACPI driver",
1825 .owner = THIS_MODULE,
1826 .ids = toshiba_device_ids,
1827 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1828 .ops = {
1829 .add = toshiba_acpi_add,
1830 .remove = toshiba_acpi_remove,
1831 .notify = toshiba_acpi_notify,
1832 },
1833 .drv.pm = &toshiba_acpi_pm,
1834};
1835
1836static int __init toshiba_acpi_init(void)
1837{
1838 int ret;
1839
1840 /*
1841 * Machines with this WMI guid aren't supported due to bugs in
1842 * their AML. This check relies on wmi initializing before
1843 * toshiba_acpi to guarantee guids have been identified.
1844 */
1845 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
1846 return -ENODEV;
1847
1848 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
1849 if (!toshiba_proc_dir) {
1850 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
1851 return -ENODEV;
1852 }
1853
1854 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
1855 if (ret) {
1856 pr_err("Failed to register ACPI driver: %d\n", ret);
1857 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
1858 }
1859
1860 return ret;
1861}
1862
1863static void __exit toshiba_acpi_exit(void)
1864{
1865 acpi_bus_unregister_driver(&toshiba_acpi_driver);
1866 if (toshiba_proc_dir)
1867 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
1868}
1869
1870module_init(toshiba_acpi_init);
1871module_exit(toshiba_acpi_exit);