Loading...
1/*
2 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
3 *
4 * Copyright (C) 2002-2004 John Belmonte
5 * Copyright (C) 2008 Philip Langdale
6 * Copyright (C) 2010 Pierre Ducroquet
7 * Copyright (C) 2014-2015 Azael Avalos
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * The full GNU General Public License is included in this distribution in
20 * the file called "COPYING".
21 *
22 * The devolpment page for this driver is located at
23 * http://memebeam.org/toys/ToshibaAcpiDriver.
24 *
25 * Credits:
26 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
27 * engineering the Windows drivers
28 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
29 * Rob Miller - TV out and hotkeys help
30 */
31
32#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
33
34#define TOSHIBA_ACPI_VERSION "0.23"
35#define PROC_INTERFACE_VERSION 1
36
37#include <linux/kernel.h>
38#include <linux/module.h>
39#include <linux/moduleparam.h>
40#include <linux/init.h>
41#include <linux/types.h>
42#include <linux/proc_fs.h>
43#include <linux/seq_file.h>
44#include <linux/backlight.h>
45#include <linux/input.h>
46#include <linux/input/sparse-keymap.h>
47#include <linux/leds.h>
48#include <linux/slab.h>
49#include <linux/workqueue.h>
50#include <linux/i8042.h>
51#include <linux/acpi.h>
52#include <linux/dmi.h>
53#include <linux/uaccess.h>
54#include <linux/miscdevice.h>
55#include <linux/rfkill.h>
56#include <linux/toshiba.h>
57#include <acpi/video.h>
58
59MODULE_AUTHOR("John Belmonte");
60MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
61MODULE_LICENSE("GPL");
62
63#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
64
65/* Scan code for Fn key on TOS1900 models */
66#define TOS1900_FN_SCAN 0x6e
67
68/* Toshiba ACPI method paths */
69#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
70
71/*
72 * The Toshiba configuration interface is composed of the HCI and the SCI,
73 * which are defined as follows:
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 TCI_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 TOS_SUCCESS 0x0000
98#define TOS_SUCCESS2 0x0001
99#define TOS_OPEN_CLOSE_OK 0x0044
100#define TOS_FAILURE 0x1000
101#define TOS_NOT_SUPPORTED 0x8000
102#define TOS_ALREADY_OPEN 0x8100
103#define TOS_NOT_OPENED 0x8200
104#define TOS_INPUT_DATA_ERROR 0x8300
105#define TOS_WRITE_PROTECTED 0x8400
106#define TOS_NOT_PRESENT 0x8600
107#define TOS_FIFO_EMPTY 0x8c00
108#define TOS_DATA_NOT_AVAILABLE 0x8d20
109#define TOS_NOT_INITIALIZED 0x8d50
110#define TOS_NOT_INSTALLED 0x8e00
111
112/* Registers */
113#define HCI_FAN 0x0004
114#define HCI_TR_BACKLIGHT 0x0005
115#define HCI_SYSTEM_EVENT 0x0016
116#define HCI_VIDEO_OUT 0x001c
117#define HCI_HOTKEY_EVENT 0x001e
118#define HCI_LCD_BRIGHTNESS 0x002a
119#define HCI_WIRELESS 0x0056
120#define HCI_ACCELEROMETER 0x006d
121#define HCI_COOLING_METHOD 0x007f
122#define HCI_KBD_ILLUMINATION 0x0095
123#define HCI_ECO_MODE 0x0097
124#define HCI_ACCELEROMETER2 0x00a6
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_HOTKEY_DISABLE 0x0b
138#define HCI_HOTKEY_ENABLE 0x09
139#define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
140#define HCI_LCD_BRIGHTNESS_BITS 3
141#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
142#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
143#define HCI_MISC_SHIFT 0x10
144#define HCI_SYSTEM_TYPE1 0x10
145#define HCI_SYSTEM_TYPE2 0x11
146#define HCI_VIDEO_OUT_LCD 0x1
147#define HCI_VIDEO_OUT_CRT 0x2
148#define HCI_VIDEO_OUT_TV 0x4
149#define SCI_KBD_MODE_MASK 0x1f
150#define SCI_KBD_MODE_FNZ 0x1
151#define SCI_KBD_MODE_AUTO 0x2
152#define SCI_KBD_MODE_ON 0x8
153#define SCI_KBD_MODE_OFF 0x10
154#define SCI_KBD_TIME_MAX 0x3c001a
155#define HCI_WIRELESS_STATUS 0x1
156#define HCI_WIRELESS_WWAN 0x3
157#define HCI_WIRELESS_WWAN_STATUS 0x2000
158#define HCI_WIRELESS_WWAN_POWER 0x4000
159#define SCI_USB_CHARGE_MODE_MASK 0xff
160#define SCI_USB_CHARGE_DISABLED 0x00
161#define SCI_USB_CHARGE_ALTERNATE 0x09
162#define SCI_USB_CHARGE_TYPICAL 0x11
163#define SCI_USB_CHARGE_AUTO 0x21
164#define SCI_USB_CHARGE_BAT_MASK 0x7
165#define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
166#define SCI_USB_CHARGE_BAT_LVL_ON 0x4
167#define SCI_USB_CHARGE_BAT_LVL 0x0200
168#define SCI_USB_CHARGE_RAPID_DSP 0x0300
169
170struct toshiba_acpi_dev {
171 struct acpi_device *acpi_dev;
172 const char *method_hci;
173 struct input_dev *hotkey_dev;
174 struct work_struct hotkey_work;
175 struct backlight_device *backlight_dev;
176 struct led_classdev led_dev;
177 struct led_classdev kbd_led;
178 struct led_classdev eco_led;
179 struct miscdevice miscdev;
180 struct rfkill *wwan_rfk;
181
182 int force_fan;
183 int last_key_event;
184 int key_event_valid;
185 int kbd_type;
186 int kbd_mode;
187 int kbd_time;
188 int usbsc_bat_level;
189 int usbsc_mode_base;
190 int hotkey_event_type;
191 int max_cooling_method;
192
193 unsigned int illumination_supported:1;
194 unsigned int video_supported:1;
195 unsigned int fan_supported:1;
196 unsigned int system_event_supported:1;
197 unsigned int ntfy_supported:1;
198 unsigned int info_supported:1;
199 unsigned int tr_backlight_supported:1;
200 unsigned int kbd_illum_supported:1;
201 unsigned int touchpad_supported:1;
202 unsigned int eco_supported:1;
203 unsigned int accelerometer_supported:1;
204 unsigned int usb_sleep_charge_supported:1;
205 unsigned int usb_rapid_charge_supported:1;
206 unsigned int usb_sleep_music_supported:1;
207 unsigned int kbd_function_keys_supported:1;
208 unsigned int panel_power_on_supported:1;
209 unsigned int usb_three_supported:1;
210 unsigned int wwan_supported:1;
211 unsigned int cooling_method_supported:1;
212 unsigned int sysfs_created:1;
213 unsigned int special_functions;
214
215 bool kbd_event_generated;
216 bool kbd_led_registered;
217 bool illumination_led_registered;
218 bool eco_led_registered;
219 bool killswitch;
220};
221
222static struct toshiba_acpi_dev *toshiba_acpi;
223
224static bool disable_hotkeys;
225module_param(disable_hotkeys, bool, 0444);
226MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
227
228static const struct acpi_device_id toshiba_device_ids[] = {
229 {"TOS6200", 0},
230 {"TOS6207", 0},
231 {"TOS6208", 0},
232 {"TOS1900", 0},
233 {"", 0},
234};
235MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
236
237static const struct key_entry toshiba_acpi_keymap[] = {
238 { KE_KEY, 0x9e, { KEY_RFKILL } },
239 { KE_KEY, 0x101, { KEY_MUTE } },
240 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
241 { KE_KEY, 0x103, { KEY_ZOOMIN } },
242 { KE_KEY, 0x10f, { KEY_TAB } },
243 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
244 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
245 { KE_KEY, 0x13b, { KEY_COFFEE } },
246 { KE_KEY, 0x13c, { KEY_BATTERY } },
247 { KE_KEY, 0x13d, { KEY_SLEEP } },
248 { KE_KEY, 0x13e, { KEY_SUSPEND } },
249 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
250 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
251 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
252 { KE_KEY, 0x142, { KEY_WLAN } },
253 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
254 { KE_KEY, 0x17f, { KEY_FN } },
255 { KE_KEY, 0xb05, { KEY_PROG2 } },
256 { KE_KEY, 0xb06, { KEY_WWW } },
257 { KE_KEY, 0xb07, { KEY_MAIL } },
258 { KE_KEY, 0xb30, { KEY_STOP } },
259 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
260 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
261 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
262 { KE_KEY, 0xb5a, { KEY_MEDIA } },
263 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
264 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
265 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
266 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
267 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
268 { KE_END, 0 },
269};
270
271static const struct key_entry toshiba_acpi_alt_keymap[] = {
272 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
273 { KE_KEY, 0x103, { KEY_ZOOMIN } },
274 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
275 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
276 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
277 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
278 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
279 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
280 { KE_KEY, 0x157, { KEY_MUTE } },
281 { KE_KEY, 0x158, { KEY_WLAN } },
282 { KE_END, 0 },
283};
284
285/*
286 * List of models which have a broken acpi-video backlight interface and thus
287 * need to use the toshiba (vendor) interface instead.
288 */
289static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
290 {}
291};
292
293/*
294 * Utility
295 */
296
297static inline void _set_bit(u32 *word, u32 mask, int value)
298{
299 *word = (*word & ~mask) | (mask * value);
300}
301
302/*
303 * ACPI interface wrappers
304 */
305
306static int write_acpi_int(const char *methodName, int val)
307{
308 acpi_status status;
309
310 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
311 return (status == AE_OK) ? 0 : -EIO;
312}
313
314/*
315 * Perform a raw configuration call. Here we don't care about input or output
316 * buffer format.
317 */
318static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
319 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
320{
321 struct acpi_object_list params;
322 union acpi_object in_objs[TCI_WORDS];
323 struct acpi_buffer results;
324 union acpi_object out_objs[TCI_WORDS + 1];
325 acpi_status status;
326 int i;
327
328 params.count = TCI_WORDS;
329 params.pointer = in_objs;
330 for (i = 0; i < TCI_WORDS; ++i) {
331 in_objs[i].type = ACPI_TYPE_INTEGER;
332 in_objs[i].integer.value = in[i];
333 }
334
335 results.length = sizeof(out_objs);
336 results.pointer = out_objs;
337
338 status = acpi_evaluate_object(dev->acpi_dev->handle,
339 (char *)dev->method_hci, ¶ms,
340 &results);
341 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
342 for (i = 0; i < out_objs->package.count; ++i)
343 out[i] = out_objs->package.elements[i].integer.value;
344 }
345
346 return status;
347}
348
349/*
350 * Common hci tasks
351 *
352 * In addition to the ACPI status, the HCI system returns a result which
353 * may be useful (such as "not supported").
354 */
355
356static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
357{
358 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
359 u32 out[TCI_WORDS];
360 acpi_status status = tci_raw(dev, in, out);
361
362 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
363}
364
365static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
366{
367 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
368 u32 out[TCI_WORDS];
369 acpi_status status = tci_raw(dev, in, out);
370
371 if (ACPI_FAILURE(status))
372 return TOS_FAILURE;
373
374 *out1 = out[2];
375
376 return out[0];
377}
378
379/*
380 * Common sci tasks
381 */
382
383static int sci_open(struct toshiba_acpi_dev *dev)
384{
385 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
386 u32 out[TCI_WORDS];
387 acpi_status status;
388
389 status = tci_raw(dev, in, out);
390 if (ACPI_FAILURE(status)) {
391 pr_err("ACPI call to open SCI failed\n");
392 return 0;
393 }
394
395 if (out[0] == TOS_OPEN_CLOSE_OK) {
396 return 1;
397 } else if (out[0] == TOS_ALREADY_OPEN) {
398 pr_info("Toshiba SCI already opened\n");
399 return 1;
400 } else if (out[0] == TOS_NOT_SUPPORTED) {
401 /*
402 * Some BIOSes do not have the SCI open/close functions
403 * implemented and return 0x8000 (Not Supported), failing to
404 * register some supported features.
405 *
406 * Simply return 1 if we hit those affected laptops to make the
407 * supported features work.
408 *
409 * In the case that some laptops really do not support the SCI,
410 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
411 * and thus, not registering support for the queried feature.
412 */
413 return 1;
414 } else if (out[0] == TOS_NOT_PRESENT) {
415 pr_info("Toshiba SCI is not present\n");
416 }
417
418 return 0;
419}
420
421static void sci_close(struct toshiba_acpi_dev *dev)
422{
423 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
424 u32 out[TCI_WORDS];
425 acpi_status status;
426
427 status = tci_raw(dev, in, out);
428 if (ACPI_FAILURE(status)) {
429 pr_err("ACPI call to close SCI failed\n");
430 return;
431 }
432
433 if (out[0] == TOS_OPEN_CLOSE_OK)
434 return;
435 else if (out[0] == TOS_NOT_OPENED)
436 pr_info("Toshiba SCI not opened\n");
437 else if (out[0] == TOS_NOT_PRESENT)
438 pr_info("Toshiba SCI is not present\n");
439}
440
441static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
442{
443 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
444 u32 out[TCI_WORDS];
445 acpi_status status = tci_raw(dev, in, out);
446
447 if (ACPI_FAILURE(status))
448 return TOS_FAILURE;
449
450 *out1 = out[2];
451
452 return out[0];
453}
454
455static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
456{
457 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
458 u32 out[TCI_WORDS];
459 acpi_status status = tci_raw(dev, in, out);
460
461 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
462}
463
464/* Illumination support */
465static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
466{
467 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
468 u32 out[TCI_WORDS];
469 acpi_status status;
470
471 dev->illumination_supported = 0;
472 dev->illumination_led_registered = false;
473
474 if (!sci_open(dev))
475 return;
476
477 status = tci_raw(dev, in, out);
478 sci_close(dev);
479 if (ACPI_FAILURE(status))
480 pr_err("ACPI call to query Illumination support failed\n");
481 else if (out[0] == TOS_SUCCESS)
482 dev->illumination_supported = 1;
483}
484
485static void toshiba_illumination_set(struct led_classdev *cdev,
486 enum led_brightness brightness)
487{
488 struct toshiba_acpi_dev *dev = container_of(cdev,
489 struct toshiba_acpi_dev, led_dev);
490 u32 result;
491 u32 state;
492
493 /* First request : initialize communication. */
494 if (!sci_open(dev))
495 return;
496
497 /* Switch the illumination on/off */
498 state = brightness ? 1 : 0;
499 result = sci_write(dev, SCI_ILLUMINATION, state);
500 sci_close(dev);
501 if (result == TOS_FAILURE)
502 pr_err("ACPI call for illumination failed\n");
503}
504
505static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
506{
507 struct toshiba_acpi_dev *dev = container_of(cdev,
508 struct toshiba_acpi_dev, led_dev);
509 u32 state, result;
510
511 /* First request : initialize communication. */
512 if (!sci_open(dev))
513 return LED_OFF;
514
515 /* Check the illumination */
516 result = sci_read(dev, SCI_ILLUMINATION, &state);
517 sci_close(dev);
518 if (result == TOS_FAILURE) {
519 pr_err("ACPI call for illumination failed\n");
520 return LED_OFF;
521 } else if (result != TOS_SUCCESS) {
522 return LED_OFF;
523 }
524
525 return state ? LED_FULL : LED_OFF;
526}
527
528/* KBD Illumination */
529static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
530{
531 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
532 u32 out[TCI_WORDS];
533 acpi_status status;
534
535 dev->kbd_illum_supported = 0;
536 dev->kbd_led_registered = false;
537 dev->kbd_event_generated = false;
538
539 if (!sci_open(dev))
540 return;
541
542 status = tci_raw(dev, in, out);
543 sci_close(dev);
544 if (ACPI_FAILURE(status)) {
545 pr_err("ACPI call to query kbd illumination support failed\n");
546 } else if (out[0] == TOS_SUCCESS) {
547 /*
548 * Check for keyboard backlight timeout max value,
549 * previous kbd backlight implementation set this to
550 * 0x3c0003, and now the new implementation set this
551 * to 0x3c001a, use this to distinguish between them.
552 */
553 if (out[3] == SCI_KBD_TIME_MAX)
554 dev->kbd_type = 2;
555 else
556 dev->kbd_type = 1;
557 /* Get the current keyboard backlight mode */
558 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
559 /* Get the current time (1-60 seconds) */
560 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
561 /* Flag as supported */
562 dev->kbd_illum_supported = 1;
563 }
564}
565
566static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
567{
568 u32 result;
569
570 if (!sci_open(dev))
571 return -EIO;
572
573 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
574 sci_close(dev);
575 if (result == TOS_FAILURE)
576 pr_err("ACPI call to set KBD backlight status failed\n");
577 else if (result == TOS_NOT_SUPPORTED)
578 return -ENODEV;
579
580 return result == TOS_SUCCESS ? 0 : -EIO;
581}
582
583static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
584{
585 u32 result;
586
587 if (!sci_open(dev))
588 return -EIO;
589
590 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
591 sci_close(dev);
592 if (result == TOS_FAILURE)
593 pr_err("ACPI call to get KBD backlight status failed\n");
594 else if (result == TOS_NOT_SUPPORTED)
595 return -ENODEV;
596
597 return result == TOS_SUCCESS ? 0 : -EIO;
598}
599
600static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
601{
602 struct toshiba_acpi_dev *dev = container_of(cdev,
603 struct toshiba_acpi_dev, kbd_led);
604 u32 result;
605 u32 state;
606
607 /* Check the keyboard backlight state */
608 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
609 if (result == TOS_FAILURE) {
610 pr_err("ACPI call to get the keyboard backlight failed\n");
611 return LED_OFF;
612 } else if (result != TOS_SUCCESS) {
613 return LED_OFF;
614 }
615
616 return state ? LED_FULL : LED_OFF;
617}
618
619static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
620 enum led_brightness brightness)
621{
622 struct toshiba_acpi_dev *dev = container_of(cdev,
623 struct toshiba_acpi_dev, kbd_led);
624 u32 result;
625 u32 state;
626
627 /* Set the keyboard backlight state */
628 state = brightness ? 1 : 0;
629 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
630 if (result == TOS_FAILURE)
631 pr_err("ACPI call to set KBD Illumination mode failed\n");
632}
633
634/* TouchPad support */
635static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
636{
637 u32 result;
638
639 if (!sci_open(dev))
640 return -EIO;
641
642 result = sci_write(dev, SCI_TOUCHPAD, state);
643 sci_close(dev);
644 if (result == TOS_FAILURE)
645 pr_err("ACPI call to set the touchpad failed\n");
646 else if (result == TOS_NOT_SUPPORTED)
647 return -ENODEV;
648
649 return result == TOS_SUCCESS ? 0 : -EIO;
650}
651
652static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
653{
654 u32 result;
655
656 if (!sci_open(dev))
657 return -EIO;
658
659 result = sci_read(dev, SCI_TOUCHPAD, state);
660 sci_close(dev);
661 if (result == TOS_FAILURE)
662 pr_err("ACPI call to query the touchpad failed\n");
663 else if (result == TOS_NOT_SUPPORTED)
664 return -ENODEV;
665
666 return result == TOS_SUCCESS ? 0 : -EIO;
667}
668
669/* Eco Mode support */
670static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
671{
672 acpi_status status;
673 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
674 u32 out[TCI_WORDS];
675
676 dev->eco_supported = 0;
677 dev->eco_led_registered = false;
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 } else if (out[0] == TOS_INPUT_DATA_ERROR) {
683 /*
684 * If we receive 0x8300 (Input Data Error), it means that the
685 * LED device is present, but that we just screwed the input
686 * parameters.
687 *
688 * Let's query the status of the LED to see if we really have a
689 * success response, indicating the actual presense of the LED,
690 * bail out otherwise.
691 */
692 in[3] = 1;
693 status = tci_raw(dev, in, out);
694 if (ACPI_FAILURE(status))
695 pr_err("ACPI call to get ECO led failed\n");
696 else if (out[0] == TOS_SUCCESS)
697 dev->eco_supported = 1;
698 }
699}
700
701static enum led_brightness
702toshiba_eco_mode_get_status(struct led_classdev *cdev)
703{
704 struct toshiba_acpi_dev *dev = container_of(cdev,
705 struct toshiba_acpi_dev, eco_led);
706 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
707 u32 out[TCI_WORDS];
708 acpi_status status;
709
710 status = tci_raw(dev, in, out);
711 if (ACPI_FAILURE(status)) {
712 pr_err("ACPI call to get ECO led failed\n");
713 return LED_OFF;
714 } else if (out[0] != TOS_SUCCESS) {
715 return LED_OFF;
716 }
717
718 return out[2] ? LED_FULL : LED_OFF;
719}
720
721static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
722 enum led_brightness brightness)
723{
724 struct toshiba_acpi_dev *dev = container_of(cdev,
725 struct toshiba_acpi_dev, eco_led);
726 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
727 u32 out[TCI_WORDS];
728 acpi_status status;
729
730 /* Switch the Eco Mode led on/off */
731 in[2] = (brightness) ? 1 : 0;
732 status = tci_raw(dev, in, out);
733 if (ACPI_FAILURE(status))
734 pr_err("ACPI call to set ECO led failed\n");
735}
736
737/* Accelerometer support */
738static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
739{
740 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
741 u32 out[TCI_WORDS];
742 acpi_status status;
743
744 dev->accelerometer_supported = 0;
745
746 /*
747 * Check if the accelerometer call exists,
748 * this call also serves as initialization
749 */
750 status = tci_raw(dev, in, out);
751 if (ACPI_FAILURE(status))
752 pr_err("ACPI call to query the accelerometer failed\n");
753 else if (out[0] == TOS_SUCCESS)
754 dev->accelerometer_supported = 1;
755}
756
757static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
758 u32 *xy, u32 *z)
759{
760 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
761 u32 out[TCI_WORDS];
762 acpi_status status;
763
764 /* Check the Accelerometer status */
765 status = tci_raw(dev, in, out);
766 if (ACPI_FAILURE(status)) {
767 pr_err("ACPI call to query the accelerometer failed\n");
768 return -EIO;
769 } else if (out[0] == TOS_NOT_SUPPORTED) {
770 return -ENODEV;
771 } else if (out[0] == TOS_SUCCESS) {
772 *xy = out[2];
773 *z = out[4];
774 return 0;
775 }
776
777 return -EIO;
778}
779
780/* Sleep (Charge and Music) utilities support */
781static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
782{
783 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
784 u32 out[TCI_WORDS];
785 acpi_status status;
786
787 dev->usb_sleep_charge_supported = 0;
788
789 if (!sci_open(dev))
790 return;
791
792 status = tci_raw(dev, in, out);
793 if (ACPI_FAILURE(status)) {
794 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
795 sci_close(dev);
796 return;
797 } else if (out[0] == TOS_NOT_SUPPORTED) {
798 sci_close(dev);
799 return;
800 } else if (out[0] == TOS_SUCCESS) {
801 dev->usbsc_mode_base = out[4];
802 }
803
804 in[5] = SCI_USB_CHARGE_BAT_LVL;
805 status = tci_raw(dev, in, out);
806 sci_close(dev);
807 if (ACPI_FAILURE(status)) {
808 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
809 } else if (out[0] == TOS_SUCCESS) {
810 dev->usbsc_bat_level = out[2];
811 /* Flag as supported */
812 dev->usb_sleep_charge_supported = 1;
813 }
814
815}
816
817static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
818 u32 *mode)
819{
820 u32 result;
821
822 if (!sci_open(dev))
823 return -EIO;
824
825 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
826 sci_close(dev);
827 if (result == TOS_FAILURE)
828 pr_err("ACPI call to set USB S&C mode failed\n");
829 else if (result == TOS_NOT_SUPPORTED)
830 return -ENODEV;
831
832 return result == TOS_SUCCESS ? 0 : -EIO;
833}
834
835static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
836 u32 mode)
837{
838 u32 result;
839
840 if (!sci_open(dev))
841 return -EIO;
842
843 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
844 sci_close(dev);
845 if (result == TOS_FAILURE)
846 pr_err("ACPI call to set USB S&C mode failed\n");
847 else if (result == TOS_NOT_SUPPORTED)
848 return -ENODEV;
849
850 return result == TOS_SUCCESS ? 0 : -EIO;
851}
852
853static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
854 u32 *mode)
855{
856 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
857 u32 out[TCI_WORDS];
858 acpi_status status;
859
860 if (!sci_open(dev))
861 return -EIO;
862
863 in[5] = SCI_USB_CHARGE_BAT_LVL;
864 status = tci_raw(dev, in, out);
865 sci_close(dev);
866 if (ACPI_FAILURE(status)) {
867 pr_err("ACPI call to get USB S&C battery level failed\n");
868 } else if (out[0] == TOS_NOT_SUPPORTED) {
869 return -ENODEV;
870 } else if (out[0] == TOS_SUCCESS) {
871 *mode = out[2];
872 return 0;
873 }
874
875 return -EIO;
876}
877
878static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
879 u32 mode)
880{
881 u32 in[TCI_WORDS] = { SCI_SET, 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[2] = mode;
889 in[5] = SCI_USB_CHARGE_BAT_LVL;
890 status = tci_raw(dev, in, out);
891 sci_close(dev);
892 if (ACPI_FAILURE(status))
893 pr_err("ACPI call to set USB S&C battery level failed\n");
894 else if (out[0] == TOS_NOT_SUPPORTED)
895 return -ENODEV;
896
897 return out[0] == TOS_SUCCESS ? 0 : -EIO;
898}
899
900static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
901 u32 *state)
902{
903 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
904 u32 out[TCI_WORDS];
905 acpi_status status;
906
907 if (!sci_open(dev))
908 return -EIO;
909
910 in[5] = SCI_USB_CHARGE_RAPID_DSP;
911 status = tci_raw(dev, in, out);
912 sci_close(dev);
913 if (ACPI_FAILURE(status)) {
914 pr_err("ACPI call to get USB Rapid Charge failed\n");
915 } else if (out[0] == TOS_NOT_SUPPORTED) {
916 return -ENODEV;
917 } else if (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) {
918 *state = out[2];
919 return 0;
920 }
921
922 return -EIO;
923}
924
925static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
926 u32 state)
927{
928 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
929 u32 out[TCI_WORDS];
930 acpi_status status;
931
932 if (!sci_open(dev))
933 return -EIO;
934
935 in[2] = state;
936 in[5] = SCI_USB_CHARGE_RAPID_DSP;
937 status = tci_raw(dev, in, out);
938 sci_close(dev);
939 if (ACPI_FAILURE(status))
940 pr_err("ACPI call to set USB Rapid Charge failed\n");
941 else if (out[0] == TOS_NOT_SUPPORTED)
942 return -ENODEV;
943
944 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
945}
946
947static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
948{
949 u32 result;
950
951 if (!sci_open(dev))
952 return -EIO;
953
954 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
955 sci_close(dev);
956 if (result == TOS_FAILURE)
957 pr_err("ACPI call to get Sleep and Music failed\n");
958 else if (result == TOS_NOT_SUPPORTED)
959 return -ENODEV;
960
961 return result == TOS_SUCCESS ? 0 : -EIO;
962}
963
964static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
965{
966 u32 result;
967
968 if (!sci_open(dev))
969 return -EIO;
970
971 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
972 sci_close(dev);
973 if (result == TOS_FAILURE)
974 pr_err("ACPI call to set Sleep and Music failed\n");
975 else if (result == TOS_NOT_SUPPORTED)
976 return -ENODEV;
977
978 return result == TOS_SUCCESS ? 0 : -EIO;
979}
980
981/* Keyboard function keys */
982static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
983{
984 u32 result;
985
986 if (!sci_open(dev))
987 return -EIO;
988
989 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
990 sci_close(dev);
991 if (result == TOS_FAILURE)
992 pr_err("ACPI call to get KBD function keys failed\n");
993 else if (result == TOS_NOT_SUPPORTED)
994 return -ENODEV;
995
996 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
997}
998
999static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1000{
1001 u32 result;
1002
1003 if (!sci_open(dev))
1004 return -EIO;
1005
1006 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1007 sci_close(dev);
1008 if (result == TOS_FAILURE)
1009 pr_err("ACPI call to set KBD function keys failed\n");
1010 else if (result == TOS_NOT_SUPPORTED)
1011 return -ENODEV;
1012
1013 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1014}
1015
1016/* Panel Power ON */
1017static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1018{
1019 u32 result;
1020
1021 if (!sci_open(dev))
1022 return -EIO;
1023
1024 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1025 sci_close(dev);
1026 if (result == TOS_FAILURE)
1027 pr_err("ACPI call to get Panel Power ON failed\n");
1028 else if (result == TOS_NOT_SUPPORTED)
1029 return -ENODEV;
1030
1031 return result == TOS_SUCCESS ? 0 : -EIO;
1032}
1033
1034static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1035{
1036 u32 result;
1037
1038 if (!sci_open(dev))
1039 return -EIO;
1040
1041 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1042 sci_close(dev);
1043 if (result == TOS_FAILURE)
1044 pr_err("ACPI call to set Panel Power ON failed\n");
1045 else if (result == TOS_NOT_SUPPORTED)
1046 return -ENODEV;
1047
1048 return result == TOS_SUCCESS ? 0 : -EIO;
1049}
1050
1051/* USB Three */
1052static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1053{
1054 u32 result;
1055
1056 if (!sci_open(dev))
1057 return -EIO;
1058
1059 result = sci_read(dev, SCI_USB_THREE, state);
1060 sci_close(dev);
1061 if (result == TOS_FAILURE)
1062 pr_err("ACPI call to get USB 3 failed\n");
1063 else if (result == TOS_NOT_SUPPORTED)
1064 return -ENODEV;
1065
1066 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1067}
1068
1069static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1070{
1071 u32 result;
1072
1073 if (!sci_open(dev))
1074 return -EIO;
1075
1076 result = sci_write(dev, SCI_USB_THREE, state);
1077 sci_close(dev);
1078 if (result == TOS_FAILURE)
1079 pr_err("ACPI call to set USB 3 failed\n");
1080 else if (result == TOS_NOT_SUPPORTED)
1081 return -ENODEV;
1082
1083 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1084}
1085
1086/* Hotkey Event type */
1087static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1088 u32 *type)
1089{
1090 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1091 u32 out[TCI_WORDS];
1092 acpi_status status;
1093
1094 status = tci_raw(dev, in, out);
1095 if (ACPI_FAILURE(status)) {
1096 pr_err("ACPI call to get System type failed\n");
1097 } else if (out[0] == TOS_NOT_SUPPORTED) {
1098 return -ENODEV;
1099 } else if (out[0] == TOS_SUCCESS) {
1100 *type = out[3];
1101 return 0;
1102 }
1103
1104 return -EIO;
1105}
1106
1107/* Wireless status (RFKill, WLAN, BT, WWAN) */
1108static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1109{
1110 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1111 u32 out[TCI_WORDS];
1112 acpi_status status;
1113
1114 in[3] = HCI_WIRELESS_STATUS;
1115 status = tci_raw(dev, in, out);
1116
1117 if (ACPI_FAILURE(status)) {
1118 pr_err("ACPI call to get Wireless status failed\n");
1119 return -EIO;
1120 }
1121
1122 if (out[0] == TOS_NOT_SUPPORTED)
1123 return -ENODEV;
1124
1125 if (out[0] != TOS_SUCCESS)
1126 return -EIO;
1127
1128 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1129
1130 return 0;
1131}
1132
1133/* WWAN */
1134static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1135{
1136 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1137 u32 out[TCI_WORDS];
1138 acpi_status status;
1139
1140 dev->wwan_supported = 0;
1141
1142 /*
1143 * WWAN support can be queried by setting the in[3] value to
1144 * HCI_WIRELESS_WWAN (0x03).
1145 *
1146 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1147 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1148 *
1149 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1150 * or TOS_NOT_SUPPORTED (0x8000).
1151 */
1152 in[3] = HCI_WIRELESS_WWAN;
1153 status = tci_raw(dev, in, out);
1154
1155 if (ACPI_FAILURE(status)) {
1156 pr_err("ACPI call to get WWAN status failed\n");
1157 return;
1158 }
1159
1160 if (out[0] != TOS_SUCCESS)
1161 return;
1162
1163 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1164}
1165
1166static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1167{
1168 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1169 u32 out[TCI_WORDS];
1170 acpi_status status;
1171
1172 in[3] = HCI_WIRELESS_WWAN_STATUS;
1173 status = tci_raw(dev, in, out);
1174
1175 if (ACPI_FAILURE(status)) {
1176 pr_err("ACPI call to set WWAN status failed\n");
1177 return -EIO;
1178 }
1179
1180 if (out[0] == TOS_NOT_SUPPORTED)
1181 return -ENODEV;
1182
1183 if (out[0] != TOS_SUCCESS)
1184 return -EIO;
1185
1186 /*
1187 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1188 * (de)activate the device, but some others need the
1189 * HCI_WIRELESS_WWAN_POWER call as well.
1190 */
1191 in[3] = HCI_WIRELESS_WWAN_POWER;
1192 status = tci_raw(dev, in, out);
1193
1194 if (ACPI_FAILURE(status)) {
1195 pr_err("ACPI call to set WWAN power failed\n");
1196 return -EIO;
1197 }
1198
1199 if (out[0] == TOS_NOT_SUPPORTED)
1200 return -ENODEV;
1201
1202 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1203}
1204
1205/* Cooling Method */
1206static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1207{
1208 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1209 u32 out[TCI_WORDS];
1210 acpi_status status;
1211
1212 dev->cooling_method_supported = 0;
1213 dev->max_cooling_method = 0;
1214
1215 status = tci_raw(dev, in, out);
1216 if (ACPI_FAILURE(status))
1217 pr_err("ACPI call to get Cooling Method failed\n");
1218
1219 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1220 return;
1221
1222 dev->cooling_method_supported = 1;
1223 dev->max_cooling_method = out[3];
1224}
1225
1226static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1227{
1228 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1229
1230 if (result == TOS_FAILURE)
1231 pr_err("ACPI call to get Cooling Method failed\n");
1232
1233 if (result == TOS_NOT_SUPPORTED)
1234 return -ENODEV;
1235
1236 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1237}
1238
1239static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1240{
1241 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1242
1243 if (result == TOS_FAILURE)
1244 pr_err("ACPI call to get Cooling Method failed\n");
1245
1246 if (result == TOS_NOT_SUPPORTED)
1247 return -ENODEV;
1248
1249 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1250}
1251
1252/* Transflective Backlight */
1253static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1254{
1255 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1256
1257 if (result == TOS_FAILURE)
1258 pr_err("ACPI call to get Transflective Backlight failed\n");
1259 else if (result == TOS_NOT_SUPPORTED)
1260 return -ENODEV;
1261
1262 return result == TOS_SUCCESS ? 0 : -EIO;
1263}
1264
1265static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1266{
1267 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1268
1269 if (result == TOS_FAILURE)
1270 pr_err("ACPI call to set Transflective Backlight failed\n");
1271 else if (result == TOS_NOT_SUPPORTED)
1272 return -ENODEV;
1273
1274 return result == TOS_SUCCESS ? 0 : -EIO;
1275}
1276
1277static struct proc_dir_entry *toshiba_proc_dir;
1278
1279/* LCD Brightness */
1280static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1281{
1282 u32 result;
1283 u32 value;
1284 int brightness = 0;
1285
1286 if (dev->tr_backlight_supported) {
1287 int ret = get_tr_backlight_status(dev, &value);
1288
1289 if (ret)
1290 return ret;
1291 if (value)
1292 return 0;
1293 brightness++;
1294 }
1295
1296 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1297 if (result == TOS_FAILURE)
1298 pr_err("ACPI call to get LCD Brightness failed\n");
1299 else if (result == TOS_NOT_SUPPORTED)
1300 return -ENODEV;
1301 if (result == TOS_SUCCESS)
1302 return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
1303
1304 return -EIO;
1305}
1306
1307static int get_lcd_brightness(struct backlight_device *bd)
1308{
1309 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1310
1311 return __get_lcd_brightness(dev);
1312}
1313
1314static int lcd_proc_show(struct seq_file *m, void *v)
1315{
1316 struct toshiba_acpi_dev *dev = m->private;
1317 int levels;
1318 int value;
1319
1320 if (!dev->backlight_dev)
1321 return -ENODEV;
1322
1323 levels = dev->backlight_dev->props.max_brightness + 1;
1324 value = get_lcd_brightness(dev->backlight_dev);
1325 if (value >= 0) {
1326 seq_printf(m, "brightness: %d\n", value);
1327 seq_printf(m, "brightness_levels: %d\n", levels);
1328 return 0;
1329 }
1330
1331 pr_err("Error reading LCD brightness\n");
1332
1333 return -EIO;
1334}
1335
1336static int lcd_proc_open(struct inode *inode, struct file *file)
1337{
1338 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1339}
1340
1341static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1342{
1343 u32 result;
1344
1345 if (dev->tr_backlight_supported) {
1346 int ret = set_tr_backlight_status(dev, !value);
1347
1348 if (ret)
1349 return ret;
1350 if (value)
1351 value--;
1352 }
1353
1354 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1355 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1356 if (result == TOS_FAILURE)
1357 pr_err("ACPI call to set LCD Brightness failed\n");
1358 else if (result == TOS_NOT_SUPPORTED)
1359 return -ENODEV;
1360
1361 return result == TOS_SUCCESS ? 0 : -EIO;
1362}
1363
1364static int set_lcd_status(struct backlight_device *bd)
1365{
1366 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1367
1368 return set_lcd_brightness(dev, bd->props.brightness);
1369}
1370
1371static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1372 size_t count, loff_t *pos)
1373{
1374 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1375 char cmd[42];
1376 size_t len;
1377 int levels = dev->backlight_dev->props.max_brightness + 1;
1378 int value;
1379
1380 len = min(count, sizeof(cmd) - 1);
1381 if (copy_from_user(cmd, buf, len))
1382 return -EFAULT;
1383 cmd[len] = '\0';
1384
1385 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1386 value < 0 && value > levels)
1387 return -EINVAL;
1388
1389 if (set_lcd_brightness(dev, value))
1390 return -EIO;
1391
1392 return count;
1393}
1394
1395static const struct file_operations lcd_proc_fops = {
1396 .owner = THIS_MODULE,
1397 .open = lcd_proc_open,
1398 .read = seq_read,
1399 .llseek = seq_lseek,
1400 .release = single_release,
1401 .write = lcd_proc_write,
1402};
1403
1404/* Video-Out */
1405static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1406{
1407 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1408
1409 if (result == TOS_FAILURE)
1410 pr_err("ACPI call to get Video-Out failed\n");
1411 else if (result == TOS_NOT_SUPPORTED)
1412 return -ENODEV;
1413
1414 return result == TOS_SUCCESS ? 0 : -EIO;
1415}
1416
1417static int video_proc_show(struct seq_file *m, void *v)
1418{
1419 struct toshiba_acpi_dev *dev = m->private;
1420 u32 value;
1421
1422 if (!get_video_status(dev, &value)) {
1423 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1424 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1425 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1426
1427 seq_printf(m, "lcd_out: %d\n", is_lcd);
1428 seq_printf(m, "crt_out: %d\n", is_crt);
1429 seq_printf(m, "tv_out: %d\n", is_tv);
1430 return 0;
1431 }
1432
1433 return -EIO;
1434}
1435
1436static int video_proc_open(struct inode *inode, struct file *file)
1437{
1438 return single_open(file, video_proc_show, PDE_DATA(inode));
1439}
1440
1441static ssize_t video_proc_write(struct file *file, const char __user *buf,
1442 size_t count, loff_t *pos)
1443{
1444 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1445 char *buffer;
1446 char *cmd;
1447 int remain = count;
1448 int lcd_out = -1;
1449 int crt_out = -1;
1450 int tv_out = -1;
1451 int value;
1452 int ret;
1453 u32 video_out;
1454
1455 cmd = kmalloc(count + 1, GFP_KERNEL);
1456 if (!cmd)
1457 return -ENOMEM;
1458 if (copy_from_user(cmd, buf, count)) {
1459 kfree(cmd);
1460 return -EFAULT;
1461 }
1462 cmd[count] = '\0';
1463
1464 buffer = cmd;
1465
1466 /*
1467 * Scan expression. Multiple expressions may be delimited with ;
1468 * NOTE: To keep scanning simple, invalid fields are ignored.
1469 */
1470 while (remain) {
1471 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1472 lcd_out = value & 1;
1473 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1474 crt_out = value & 1;
1475 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1476 tv_out = value & 1;
1477 /* Advance to one character past the next ; */
1478 do {
1479 ++buffer;
1480 --remain;
1481 } while (remain && *(buffer - 1) != ';');
1482 }
1483
1484 kfree(cmd);
1485
1486 ret = get_video_status(dev, &video_out);
1487 if (!ret) {
1488 unsigned int new_video_out = video_out;
1489
1490 if (lcd_out != -1)
1491 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1492 if (crt_out != -1)
1493 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1494 if (tv_out != -1)
1495 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1496 /*
1497 * To avoid unnecessary video disruption, only write the new
1498 * video setting if something changed.
1499 */
1500 if (new_video_out != video_out)
1501 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1502 }
1503
1504 return ret ? -EIO : count;
1505}
1506
1507static const struct file_operations video_proc_fops = {
1508 .owner = THIS_MODULE,
1509 .open = video_proc_open,
1510 .read = seq_read,
1511 .llseek = seq_lseek,
1512 .release = single_release,
1513 .write = video_proc_write,
1514};
1515
1516/* Fan status */
1517static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1518{
1519 u32 result = hci_read(dev, HCI_FAN, status);
1520
1521 if (result == TOS_FAILURE)
1522 pr_err("ACPI call to get Fan status failed\n");
1523 else if (result == TOS_NOT_SUPPORTED)
1524 return -ENODEV;
1525
1526 return result == TOS_SUCCESS ? 0 : -EIO;
1527}
1528
1529static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1530{
1531 u32 result = hci_write(dev, HCI_FAN, status);
1532
1533 if (result == TOS_FAILURE)
1534 pr_err("ACPI call to set Fan status failed\n");
1535 else if (result == TOS_NOT_SUPPORTED)
1536 return -ENODEV;
1537
1538 return result == TOS_SUCCESS ? 0 : -EIO;
1539}
1540
1541static int fan_proc_show(struct seq_file *m, void *v)
1542{
1543 struct toshiba_acpi_dev *dev = m->private;
1544 u32 value;
1545
1546 if (get_fan_status(dev, &value))
1547 return -EIO;
1548
1549 seq_printf(m, "running: %d\n", (value > 0));
1550 seq_printf(m, "force_on: %d\n", dev->force_fan);
1551
1552 return 0;
1553}
1554
1555static int fan_proc_open(struct inode *inode, struct file *file)
1556{
1557 return single_open(file, fan_proc_show, PDE_DATA(inode));
1558}
1559
1560static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1561 size_t count, loff_t *pos)
1562{
1563 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1564 char cmd[42];
1565 size_t len;
1566 int value;
1567
1568 len = min(count, sizeof(cmd) - 1);
1569 if (copy_from_user(cmd, buf, len))
1570 return -EFAULT;
1571 cmd[len] = '\0';
1572
1573 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1574 value != 0 && value != 1)
1575 return -EINVAL;
1576
1577 if (set_fan_status(dev, value))
1578 return -EIO;
1579
1580 dev->force_fan = value;
1581
1582 return count;
1583}
1584
1585static const struct file_operations fan_proc_fops = {
1586 .owner = THIS_MODULE,
1587 .open = fan_proc_open,
1588 .read = seq_read,
1589 .llseek = seq_lseek,
1590 .release = single_release,
1591 .write = fan_proc_write,
1592};
1593
1594static int keys_proc_show(struct seq_file *m, void *v)
1595{
1596 struct toshiba_acpi_dev *dev = m->private;
1597
1598 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1599 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1600
1601 return 0;
1602}
1603
1604static int keys_proc_open(struct inode *inode, struct file *file)
1605{
1606 return single_open(file, keys_proc_show, PDE_DATA(inode));
1607}
1608
1609static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1610 size_t count, loff_t *pos)
1611{
1612 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1613 char cmd[42];
1614 size_t len;
1615 int value;
1616
1617 len = min(count, sizeof(cmd) - 1);
1618 if (copy_from_user(cmd, buf, len))
1619 return -EFAULT;
1620 cmd[len] = '\0';
1621
1622 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1623 dev->key_event_valid = 0;
1624 else
1625 return -EINVAL;
1626
1627 return count;
1628}
1629
1630static const struct file_operations keys_proc_fops = {
1631 .owner = THIS_MODULE,
1632 .open = keys_proc_open,
1633 .read = seq_read,
1634 .llseek = seq_lseek,
1635 .release = single_release,
1636 .write = keys_proc_write,
1637};
1638
1639static int version_proc_show(struct seq_file *m, void *v)
1640{
1641 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1642 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1643 return 0;
1644}
1645
1646static int version_proc_open(struct inode *inode, struct file *file)
1647{
1648 return single_open(file, version_proc_show, PDE_DATA(inode));
1649}
1650
1651static const struct file_operations version_proc_fops = {
1652 .owner = THIS_MODULE,
1653 .open = version_proc_open,
1654 .read = seq_read,
1655 .llseek = seq_lseek,
1656 .release = single_release,
1657};
1658
1659/*
1660 * Proc and module init
1661 */
1662
1663#define PROC_TOSHIBA "toshiba"
1664
1665static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1666{
1667 if (dev->backlight_dev)
1668 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1669 &lcd_proc_fops, dev);
1670 if (dev->video_supported)
1671 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1672 &video_proc_fops, dev);
1673 if (dev->fan_supported)
1674 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1675 &fan_proc_fops, dev);
1676 if (dev->hotkey_dev)
1677 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1678 &keys_proc_fops, dev);
1679 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1680 &version_proc_fops, dev);
1681}
1682
1683static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1684{
1685 if (dev->backlight_dev)
1686 remove_proc_entry("lcd", toshiba_proc_dir);
1687 if (dev->video_supported)
1688 remove_proc_entry("video", toshiba_proc_dir);
1689 if (dev->fan_supported)
1690 remove_proc_entry("fan", toshiba_proc_dir);
1691 if (dev->hotkey_dev)
1692 remove_proc_entry("keys", toshiba_proc_dir);
1693 remove_proc_entry("version", toshiba_proc_dir);
1694}
1695
1696static const struct backlight_ops toshiba_backlight_data = {
1697 .options = BL_CORE_SUSPENDRESUME,
1698 .get_brightness = get_lcd_brightness,
1699 .update_status = set_lcd_status,
1700};
1701
1702/* Keyboard backlight work */
1703static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1704
1705static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1706
1707/*
1708 * Sysfs files
1709 */
1710static ssize_t version_show(struct device *dev,
1711 struct device_attribute *attr, char *buf)
1712{
1713 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1714}
1715static DEVICE_ATTR_RO(version);
1716
1717static ssize_t fan_store(struct device *dev,
1718 struct device_attribute *attr,
1719 const char *buf, size_t count)
1720{
1721 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1722 int state;
1723 int ret;
1724
1725 ret = kstrtoint(buf, 0, &state);
1726 if (ret)
1727 return ret;
1728
1729 if (state != 0 && state != 1)
1730 return -EINVAL;
1731
1732 ret = set_fan_status(toshiba, state);
1733 if (ret)
1734 return ret;
1735
1736 return count;
1737}
1738
1739static ssize_t fan_show(struct device *dev,
1740 struct device_attribute *attr, char *buf)
1741{
1742 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1743 u32 value;
1744 int ret;
1745
1746 ret = get_fan_status(toshiba, &value);
1747 if (ret)
1748 return ret;
1749
1750 return sprintf(buf, "%d\n", value);
1751}
1752static DEVICE_ATTR_RW(fan);
1753
1754static ssize_t kbd_backlight_mode_store(struct device *dev,
1755 struct device_attribute *attr,
1756 const char *buf, size_t count)
1757{
1758 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1759 int mode;
1760 int ret;
1761
1762
1763 ret = kstrtoint(buf, 0, &mode);
1764 if (ret)
1765 return ret;
1766
1767 /* Check for supported modes depending on keyboard backlight type */
1768 if (toshiba->kbd_type == 1) {
1769 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1770 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1771 return -EINVAL;
1772 } else if (toshiba->kbd_type == 2) {
1773 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1774 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1775 mode != SCI_KBD_MODE_OFF)
1776 return -EINVAL;
1777 }
1778
1779 /*
1780 * Set the Keyboard Backlight Mode where:
1781 * Auto - KBD backlight turns off automatically in given time
1782 * FN-Z - KBD backlight "toggles" when hotkey pressed
1783 * ON - KBD backlight is always on
1784 * OFF - KBD backlight is always off
1785 */
1786
1787 /* Only make a change if the actual mode has changed */
1788 if (toshiba->kbd_mode != mode) {
1789 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1790 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1791
1792 /* OR the "base time" to the actual method format */
1793 if (toshiba->kbd_type == 1) {
1794 /* Type 1 requires the current mode */
1795 time |= toshiba->kbd_mode;
1796 } else if (toshiba->kbd_type == 2) {
1797 /* Type 2 requires the desired mode */
1798 time |= mode;
1799 }
1800
1801 ret = toshiba_kbd_illum_status_set(toshiba, time);
1802 if (ret)
1803 return ret;
1804
1805 toshiba->kbd_mode = mode;
1806
1807 /*
1808 * Some laptop models with the second generation backlit
1809 * keyboard (type 2) do not generate the keyboard backlight
1810 * changed event (0x92), and thus, the driver will never update
1811 * the sysfs entries.
1812 *
1813 * The event is generated right when changing the keyboard
1814 * backlight mode and the *notify function will set the
1815 * kbd_event_generated to true.
1816 *
1817 * In case the event is not generated, schedule the keyboard
1818 * backlight work to update the sysfs entries and emulate the
1819 * event via genetlink.
1820 */
1821 if (toshiba->kbd_type == 2 &&
1822 !toshiba_acpi->kbd_event_generated)
1823 schedule_work(&kbd_bl_work);
1824 }
1825
1826 return count;
1827}
1828
1829static ssize_t kbd_backlight_mode_show(struct device *dev,
1830 struct device_attribute *attr,
1831 char *buf)
1832{
1833 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1834 u32 time;
1835
1836 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1837 return -EIO;
1838
1839 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1840}
1841static DEVICE_ATTR_RW(kbd_backlight_mode);
1842
1843static ssize_t kbd_type_show(struct device *dev,
1844 struct device_attribute *attr, char *buf)
1845{
1846 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1847
1848 return sprintf(buf, "%d\n", toshiba->kbd_type);
1849}
1850static DEVICE_ATTR_RO(kbd_type);
1851
1852static ssize_t available_kbd_modes_show(struct device *dev,
1853 struct device_attribute *attr,
1854 char *buf)
1855{
1856 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1857
1858 if (toshiba->kbd_type == 1)
1859 return sprintf(buf, "0x%x 0x%x\n",
1860 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1861
1862 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1863 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1864}
1865static DEVICE_ATTR_RO(available_kbd_modes);
1866
1867static ssize_t kbd_backlight_timeout_store(struct device *dev,
1868 struct device_attribute *attr,
1869 const char *buf, size_t count)
1870{
1871 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1872 int time;
1873 int ret;
1874
1875 ret = kstrtoint(buf, 0, &time);
1876 if (ret)
1877 return ret;
1878
1879 /* Check for supported values depending on kbd_type */
1880 if (toshiba->kbd_type == 1) {
1881 if (time < 0 || time > 60)
1882 return -EINVAL;
1883 } else if (toshiba->kbd_type == 2) {
1884 if (time < 1 || time > 60)
1885 return -EINVAL;
1886 }
1887
1888 /* Set the Keyboard Backlight Timeout */
1889
1890 /* Only make a change if the actual timeout has changed */
1891 if (toshiba->kbd_time != time) {
1892 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1893 time = time << HCI_MISC_SHIFT;
1894 /* OR the "base time" to the actual method format */
1895 if (toshiba->kbd_type == 1)
1896 time |= SCI_KBD_MODE_FNZ;
1897 else if (toshiba->kbd_type == 2)
1898 time |= SCI_KBD_MODE_AUTO;
1899
1900 ret = toshiba_kbd_illum_status_set(toshiba, time);
1901 if (ret)
1902 return ret;
1903
1904 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1905 }
1906
1907 return count;
1908}
1909
1910static ssize_t kbd_backlight_timeout_show(struct device *dev,
1911 struct device_attribute *attr,
1912 char *buf)
1913{
1914 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1915 u32 time;
1916
1917 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1918 return -EIO;
1919
1920 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1921}
1922static DEVICE_ATTR_RW(kbd_backlight_timeout);
1923
1924static ssize_t touchpad_store(struct device *dev,
1925 struct device_attribute *attr,
1926 const char *buf, size_t count)
1927{
1928 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1929 int state;
1930 int ret;
1931
1932 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1933 ret = kstrtoint(buf, 0, &state);
1934 if (ret)
1935 return ret;
1936 if (state != 0 && state != 1)
1937 return -EINVAL;
1938
1939 ret = toshiba_touchpad_set(toshiba, state);
1940 if (ret)
1941 return ret;
1942
1943 return count;
1944}
1945
1946static ssize_t touchpad_show(struct device *dev,
1947 struct device_attribute *attr, char *buf)
1948{
1949 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1950 u32 state;
1951 int ret;
1952
1953 ret = toshiba_touchpad_get(toshiba, &state);
1954 if (ret < 0)
1955 return ret;
1956
1957 return sprintf(buf, "%i\n", state);
1958}
1959static DEVICE_ATTR_RW(touchpad);
1960
1961static ssize_t position_show(struct device *dev,
1962 struct device_attribute *attr, char *buf)
1963{
1964 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1965 u32 xyval, zval, tmp;
1966 u16 x, y, z;
1967 int ret;
1968
1969 xyval = zval = 0;
1970 ret = toshiba_accelerometer_get(toshiba, &xyval, &zval);
1971 if (ret < 0)
1972 return ret;
1973
1974 x = xyval & HCI_ACCEL_MASK;
1975 tmp = xyval >> HCI_MISC_SHIFT;
1976 y = tmp & HCI_ACCEL_MASK;
1977 z = zval & HCI_ACCEL_MASK;
1978
1979 return sprintf(buf, "%d %d %d\n", x, y, z);
1980}
1981static DEVICE_ATTR_RO(position);
1982
1983static ssize_t usb_sleep_charge_show(struct device *dev,
1984 struct device_attribute *attr, char *buf)
1985{
1986 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1987 u32 mode;
1988 int ret;
1989
1990 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
1991 if (ret < 0)
1992 return ret;
1993
1994 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
1995}
1996
1997static ssize_t usb_sleep_charge_store(struct device *dev,
1998 struct device_attribute *attr,
1999 const char *buf, size_t count)
2000{
2001 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2002 u32 mode;
2003 int state;
2004 int ret;
2005
2006 ret = kstrtoint(buf, 0, &state);
2007 if (ret)
2008 return ret;
2009 /*
2010 * Check for supported values, where:
2011 * 0 - Disabled
2012 * 1 - Alternate (Non USB conformant devices that require more power)
2013 * 2 - Auto (USB conformant devices)
2014 * 3 - Typical
2015 */
2016 if (state != 0 && state != 1 && state != 2 && state != 3)
2017 return -EINVAL;
2018
2019 /* Set the USB charging mode to internal value */
2020 mode = toshiba->usbsc_mode_base;
2021 if (state == 0)
2022 mode |= SCI_USB_CHARGE_DISABLED;
2023 else if (state == 1)
2024 mode |= SCI_USB_CHARGE_ALTERNATE;
2025 else if (state == 2)
2026 mode |= SCI_USB_CHARGE_AUTO;
2027 else if (state == 3)
2028 mode |= SCI_USB_CHARGE_TYPICAL;
2029
2030 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2031 if (ret)
2032 return ret;
2033
2034 return count;
2035}
2036static DEVICE_ATTR_RW(usb_sleep_charge);
2037
2038static ssize_t sleep_functions_on_battery_show(struct device *dev,
2039 struct device_attribute *attr,
2040 char *buf)
2041{
2042 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2043 u32 state;
2044 int bat_lvl;
2045 int status;
2046 int ret;
2047 int tmp;
2048
2049 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2050 if (ret < 0)
2051 return ret;
2052
2053 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2054 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2055 status = (tmp == 0x4) ? 1 : 0;
2056 /* Determine the battery level set */
2057 bat_lvl = state >> HCI_MISC_SHIFT;
2058
2059 return sprintf(buf, "%d %d\n", status, bat_lvl);
2060}
2061
2062static ssize_t sleep_functions_on_battery_store(struct device *dev,
2063 struct device_attribute *attr,
2064 const char *buf, size_t count)
2065{
2066 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2067 u32 status;
2068 int value;
2069 int ret;
2070 int tmp;
2071
2072 ret = kstrtoint(buf, 0, &value);
2073 if (ret)
2074 return ret;
2075
2076 /*
2077 * Set the status of the function:
2078 * 0 - Disabled
2079 * 1-100 - Enabled
2080 */
2081 if (value < 0 || value > 100)
2082 return -EINVAL;
2083
2084 if (value == 0) {
2085 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2086 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2087 } else {
2088 tmp = value << HCI_MISC_SHIFT;
2089 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2090 }
2091 ret = toshiba_sleep_functions_status_set(toshiba, status);
2092 if (ret < 0)
2093 return ret;
2094
2095 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2096
2097 return count;
2098}
2099static DEVICE_ATTR_RW(sleep_functions_on_battery);
2100
2101static ssize_t usb_rapid_charge_show(struct device *dev,
2102 struct device_attribute *attr, char *buf)
2103{
2104 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2105 u32 state;
2106 int ret;
2107
2108 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2109 if (ret < 0)
2110 return ret;
2111
2112 return sprintf(buf, "%d\n", state);
2113}
2114
2115static ssize_t usb_rapid_charge_store(struct device *dev,
2116 struct device_attribute *attr,
2117 const char *buf, size_t count)
2118{
2119 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2120 int state;
2121 int ret;
2122
2123 ret = kstrtoint(buf, 0, &state);
2124 if (ret)
2125 return ret;
2126 if (state != 0 && state != 1)
2127 return -EINVAL;
2128
2129 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2130 if (ret)
2131 return ret;
2132
2133 return count;
2134}
2135static DEVICE_ATTR_RW(usb_rapid_charge);
2136
2137static ssize_t usb_sleep_music_show(struct device *dev,
2138 struct device_attribute *attr, char *buf)
2139{
2140 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2141 u32 state;
2142 int ret;
2143
2144 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2145 if (ret < 0)
2146 return ret;
2147
2148 return sprintf(buf, "%d\n", state);
2149}
2150
2151static ssize_t usb_sleep_music_store(struct device *dev,
2152 struct device_attribute *attr,
2153 const char *buf, size_t count)
2154{
2155 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2156 int state;
2157 int ret;
2158
2159 ret = kstrtoint(buf, 0, &state);
2160 if (ret)
2161 return ret;
2162 if (state != 0 && state != 1)
2163 return -EINVAL;
2164
2165 ret = toshiba_usb_sleep_music_set(toshiba, state);
2166 if (ret)
2167 return ret;
2168
2169 return count;
2170}
2171static DEVICE_ATTR_RW(usb_sleep_music);
2172
2173static ssize_t kbd_function_keys_show(struct device *dev,
2174 struct device_attribute *attr, char *buf)
2175{
2176 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2177 int mode;
2178 int ret;
2179
2180 ret = toshiba_function_keys_get(toshiba, &mode);
2181 if (ret < 0)
2182 return ret;
2183
2184 return sprintf(buf, "%d\n", mode);
2185}
2186
2187static ssize_t kbd_function_keys_store(struct device *dev,
2188 struct device_attribute *attr,
2189 const char *buf, size_t count)
2190{
2191 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2192 int mode;
2193 int ret;
2194
2195 ret = kstrtoint(buf, 0, &mode);
2196 if (ret)
2197 return ret;
2198 /*
2199 * Check for the function keys mode where:
2200 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2201 * 1 - Special functions (Opposite of the above setting)
2202 */
2203 if (mode != 0 && mode != 1)
2204 return -EINVAL;
2205
2206 ret = toshiba_function_keys_set(toshiba, mode);
2207 if (ret)
2208 return ret;
2209
2210 pr_info("Reboot for changes to KBD Function Keys to take effect");
2211
2212 return count;
2213}
2214static DEVICE_ATTR_RW(kbd_function_keys);
2215
2216static ssize_t panel_power_on_show(struct device *dev,
2217 struct device_attribute *attr, char *buf)
2218{
2219 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2220 u32 state;
2221 int ret;
2222
2223 ret = toshiba_panel_power_on_get(toshiba, &state);
2224 if (ret < 0)
2225 return ret;
2226
2227 return sprintf(buf, "%d\n", state);
2228}
2229
2230static ssize_t panel_power_on_store(struct device *dev,
2231 struct device_attribute *attr,
2232 const char *buf, size_t count)
2233{
2234 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2235 int state;
2236 int ret;
2237
2238 ret = kstrtoint(buf, 0, &state);
2239 if (ret)
2240 return ret;
2241 if (state != 0 && state != 1)
2242 return -EINVAL;
2243
2244 ret = toshiba_panel_power_on_set(toshiba, state);
2245 if (ret)
2246 return ret;
2247
2248 pr_info("Reboot for changes to Panel Power ON to take effect");
2249
2250 return count;
2251}
2252static DEVICE_ATTR_RW(panel_power_on);
2253
2254static ssize_t usb_three_show(struct device *dev,
2255 struct device_attribute *attr, char *buf)
2256{
2257 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2258 u32 state;
2259 int ret;
2260
2261 ret = toshiba_usb_three_get(toshiba, &state);
2262 if (ret < 0)
2263 return ret;
2264
2265 return sprintf(buf, "%d\n", state);
2266}
2267
2268static ssize_t usb_three_store(struct device *dev,
2269 struct device_attribute *attr,
2270 const char *buf, size_t count)
2271{
2272 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2273 int state;
2274 int ret;
2275
2276 ret = kstrtoint(buf, 0, &state);
2277 if (ret)
2278 return ret;
2279 /*
2280 * Check for USB 3 mode where:
2281 * 0 - Disabled (Acts like a USB 2 port, saving power)
2282 * 1 - Enabled
2283 */
2284 if (state != 0 && state != 1)
2285 return -EINVAL;
2286
2287 ret = toshiba_usb_three_set(toshiba, state);
2288 if (ret)
2289 return ret;
2290
2291 pr_info("Reboot for changes to USB 3 to take effect");
2292
2293 return count;
2294}
2295static DEVICE_ATTR_RW(usb_three);
2296
2297static ssize_t cooling_method_show(struct device *dev,
2298 struct device_attribute *attr, char *buf)
2299{
2300 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2301 int state;
2302 int ret;
2303
2304 ret = toshiba_cooling_method_get(toshiba, &state);
2305 if (ret < 0)
2306 return ret;
2307
2308 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2309}
2310
2311static ssize_t cooling_method_store(struct device *dev,
2312 struct device_attribute *attr,
2313 const char *buf, size_t count)
2314{
2315 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2316 int state;
2317 int ret;
2318
2319 ret = kstrtoint(buf, 0, &state);
2320 if (ret)
2321 return ret;
2322
2323 /*
2324 * Check for supported values
2325 * Depending on the laptop model, some only support these two:
2326 * 0 - Maximum Performance
2327 * 1 - Battery Optimized
2328 *
2329 * While some others support all three methods:
2330 * 0 - Maximum Performance
2331 * 1 - Performance
2332 * 2 - Battery Optimized
2333 */
2334 if (state < 0 || state > toshiba->max_cooling_method)
2335 return -EINVAL;
2336
2337 ret = toshiba_cooling_method_set(toshiba, state);
2338 if (ret)
2339 return ret;
2340
2341 return count;
2342}
2343static DEVICE_ATTR_RW(cooling_method);
2344
2345static struct attribute *toshiba_attributes[] = {
2346 &dev_attr_version.attr,
2347 &dev_attr_fan.attr,
2348 &dev_attr_kbd_backlight_mode.attr,
2349 &dev_attr_kbd_type.attr,
2350 &dev_attr_available_kbd_modes.attr,
2351 &dev_attr_kbd_backlight_timeout.attr,
2352 &dev_attr_touchpad.attr,
2353 &dev_attr_position.attr,
2354 &dev_attr_usb_sleep_charge.attr,
2355 &dev_attr_sleep_functions_on_battery.attr,
2356 &dev_attr_usb_rapid_charge.attr,
2357 &dev_attr_usb_sleep_music.attr,
2358 &dev_attr_kbd_function_keys.attr,
2359 &dev_attr_panel_power_on.attr,
2360 &dev_attr_usb_three.attr,
2361 &dev_attr_cooling_method.attr,
2362 NULL,
2363};
2364
2365static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2366 struct attribute *attr, int idx)
2367{
2368 struct device *dev = container_of(kobj, struct device, kobj);
2369 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2370 bool exists = true;
2371
2372 if (attr == &dev_attr_fan.attr)
2373 exists = (drv->fan_supported) ? true : false;
2374 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2375 exists = (drv->kbd_illum_supported) ? true : false;
2376 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2377 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2378 else if (attr == &dev_attr_touchpad.attr)
2379 exists = (drv->touchpad_supported) ? true : false;
2380 else if (attr == &dev_attr_position.attr)
2381 exists = (drv->accelerometer_supported) ? true : false;
2382 else if (attr == &dev_attr_usb_sleep_charge.attr)
2383 exists = (drv->usb_sleep_charge_supported) ? true : false;
2384 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2385 exists = (drv->usb_sleep_charge_supported) ? true : false;
2386 else if (attr == &dev_attr_usb_rapid_charge.attr)
2387 exists = (drv->usb_rapid_charge_supported) ? true : false;
2388 else if (attr == &dev_attr_usb_sleep_music.attr)
2389 exists = (drv->usb_sleep_music_supported) ? true : false;
2390 else if (attr == &dev_attr_kbd_function_keys.attr)
2391 exists = (drv->kbd_function_keys_supported) ? true : false;
2392 else if (attr == &dev_attr_panel_power_on.attr)
2393 exists = (drv->panel_power_on_supported) ? true : false;
2394 else if (attr == &dev_attr_usb_three.attr)
2395 exists = (drv->usb_three_supported) ? true : false;
2396 else if (attr == &dev_attr_cooling_method.attr)
2397 exists = (drv->cooling_method_supported) ? true : false;
2398
2399 return exists ? attr->mode : 0;
2400}
2401
2402static struct attribute_group toshiba_attr_group = {
2403 .is_visible = toshiba_sysfs_is_visible,
2404 .attrs = toshiba_attributes,
2405};
2406
2407static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2408{
2409 struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2410
2411 /* Update the sysfs entries */
2412 if (sysfs_update_group(&acpi_dev->dev.kobj,
2413 &toshiba_attr_group))
2414 pr_err("Unable to update sysfs entries\n");
2415
2416 /* Emulate the keyboard backlight event */
2417 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2418 dev_name(&acpi_dev->dev),
2419 0x92, 0);
2420}
2421
2422/*
2423 * Misc device
2424 */
2425static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2426{
2427 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2428 regs->edx, regs->esi, regs->edi };
2429 u32 out[TCI_WORDS];
2430 acpi_status status;
2431
2432 status = tci_raw(toshiba_acpi, in, out);
2433 if (ACPI_FAILURE(status)) {
2434 pr_err("ACPI call to query SMM registers failed\n");
2435 return -EIO;
2436 }
2437
2438 /* Fillout the SMM struct with the TCI call results */
2439 regs->eax = out[0];
2440 regs->ebx = out[1];
2441 regs->ecx = out[2];
2442 regs->edx = out[3];
2443 regs->esi = out[4];
2444 regs->edi = out[5];
2445
2446 return 0;
2447}
2448
2449static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2450 unsigned long arg)
2451{
2452 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2453 SMMRegisters regs;
2454 int ret;
2455
2456 if (!argp)
2457 return -EINVAL;
2458
2459 switch (cmd) {
2460 case TOSH_SMM:
2461 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2462 return -EFAULT;
2463 ret = toshiba_acpi_smm_bridge(®s);
2464 if (ret)
2465 return ret;
2466 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2467 return -EFAULT;
2468 break;
2469 case TOSHIBA_ACPI_SCI:
2470 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2471 return -EFAULT;
2472 /* Ensure we are being called with a SCI_{GET, SET} register */
2473 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2474 return -EINVAL;
2475 if (!sci_open(toshiba_acpi))
2476 return -EIO;
2477 ret = toshiba_acpi_smm_bridge(®s);
2478 sci_close(toshiba_acpi);
2479 if (ret)
2480 return ret;
2481 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2482 return -EFAULT;
2483 break;
2484 default:
2485 return -EINVAL;
2486 }
2487
2488 return 0;
2489}
2490
2491static const struct file_operations toshiba_acpi_fops = {
2492 .owner = THIS_MODULE,
2493 .unlocked_ioctl = toshiba_acpi_ioctl,
2494 .llseek = noop_llseek,
2495};
2496
2497/*
2498 * WWAN RFKill handlers
2499 */
2500static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2501{
2502 struct toshiba_acpi_dev *dev = data;
2503 int ret;
2504
2505 ret = toshiba_wireless_status(dev);
2506 if (ret)
2507 return ret;
2508
2509 if (!dev->killswitch)
2510 return 0;
2511
2512 return toshiba_wwan_set(dev, !blocked);
2513}
2514
2515static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2516{
2517 struct toshiba_acpi_dev *dev = data;
2518
2519 if (toshiba_wireless_status(dev))
2520 return;
2521
2522 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2523}
2524
2525static const struct rfkill_ops wwan_rfk_ops = {
2526 .set_block = toshiba_acpi_wwan_set_block,
2527 .poll = toshiba_acpi_wwan_poll,
2528};
2529
2530static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2531{
2532 int ret = toshiba_wireless_status(dev);
2533
2534 if (ret)
2535 return ret;
2536
2537 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2538 &dev->acpi_dev->dev,
2539 RFKILL_TYPE_WWAN,
2540 &wwan_rfk_ops,
2541 dev);
2542 if (!dev->wwan_rfk) {
2543 pr_err("Unable to allocate WWAN rfkill device\n");
2544 return -ENOMEM;
2545 }
2546
2547 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2548
2549 ret = rfkill_register(dev->wwan_rfk);
2550 if (ret) {
2551 pr_err("Unable to register WWAN rfkill device\n");
2552 rfkill_destroy(dev->wwan_rfk);
2553 }
2554
2555 return ret;
2556}
2557
2558/*
2559 * Hotkeys
2560 */
2561static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2562{
2563 acpi_status status;
2564 u32 result;
2565
2566 status = acpi_evaluate_object(dev->acpi_dev->handle,
2567 "ENAB", NULL, NULL);
2568 if (ACPI_FAILURE(status))
2569 return -ENODEV;
2570
2571 /*
2572 * Enable the "Special Functions" mode only if they are
2573 * supported and if they are activated.
2574 */
2575 if (dev->kbd_function_keys_supported && dev->special_functions)
2576 result = hci_write(dev, HCI_HOTKEY_EVENT,
2577 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2578 else
2579 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2580
2581 if (result == TOS_FAILURE)
2582 return -EIO;
2583 else if (result == TOS_NOT_SUPPORTED)
2584 return -ENODEV;
2585
2586 return 0;
2587}
2588
2589static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2590 struct serio *port)
2591{
2592 if (str & I8042_STR_AUXDATA)
2593 return false;
2594
2595 if (unlikely(data == 0xe0))
2596 return false;
2597
2598 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2599 schedule_work(&toshiba_acpi->hotkey_work);
2600 return true;
2601 }
2602
2603 return false;
2604}
2605
2606static void toshiba_acpi_hotkey_work(struct work_struct *work)
2607{
2608 acpi_handle ec_handle = ec_get_handle();
2609 acpi_status status;
2610
2611 if (!ec_handle)
2612 return;
2613
2614 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2615 if (ACPI_FAILURE(status))
2616 pr_err("ACPI NTFY method execution failed\n");
2617}
2618
2619/*
2620 * Returns hotkey scancode, or < 0 on failure.
2621 */
2622static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2623{
2624 unsigned long long value;
2625 acpi_status status;
2626
2627 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2628 NULL, &value);
2629 if (ACPI_FAILURE(status)) {
2630 pr_err("ACPI INFO method execution failed\n");
2631 return -EIO;
2632 }
2633
2634 return value;
2635}
2636
2637static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2638 int scancode)
2639{
2640 if (scancode == 0x100)
2641 return;
2642
2643 /* Act on key press; ignore key release */
2644 if (scancode & 0x80)
2645 return;
2646
2647 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2648 pr_info("Unknown key %x\n", scancode);
2649}
2650
2651static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2652{
2653 if (dev->info_supported) {
2654 int scancode = toshiba_acpi_query_hotkey(dev);
2655
2656 if (scancode < 0) {
2657 pr_err("Failed to query hotkey event\n");
2658 } else if (scancode != 0) {
2659 toshiba_acpi_report_hotkey(dev, scancode);
2660 dev->key_event_valid = 1;
2661 dev->last_key_event = scancode;
2662 }
2663 } else if (dev->system_event_supported) {
2664 u32 result;
2665 u32 value;
2666 int retries = 3;
2667
2668 do {
2669 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2670 switch (result) {
2671 case TOS_SUCCESS:
2672 toshiba_acpi_report_hotkey(dev, (int)value);
2673 dev->key_event_valid = 1;
2674 dev->last_key_event = value;
2675 break;
2676 case TOS_NOT_SUPPORTED:
2677 /*
2678 * This is a workaround for an unresolved
2679 * issue on some machines where system events
2680 * sporadically become disabled.
2681 */
2682 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2683 if (result == TOS_SUCCESS)
2684 pr_notice("Re-enabled hotkeys\n");
2685 /* Fall through */
2686 default:
2687 retries--;
2688 break;
2689 }
2690 } while (retries && result != TOS_FIFO_EMPTY);
2691 }
2692}
2693
2694static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2695{
2696 const struct key_entry *keymap = toshiba_acpi_keymap;
2697 acpi_handle ec_handle;
2698 int error;
2699
2700 if (disable_hotkeys) {
2701 pr_info("Hotkeys disabled by module parameter\n");
2702 return 0;
2703 }
2704
2705 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2706 pr_info("WMI event detected, hotkeys will not be monitored\n");
2707 return 0;
2708 }
2709
2710 error = toshiba_acpi_enable_hotkeys(dev);
2711 if (error)
2712 return error;
2713
2714 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2715 pr_notice("Unable to query Hotkey Event Type\n");
2716
2717 dev->hotkey_dev = input_allocate_device();
2718 if (!dev->hotkey_dev)
2719 return -ENOMEM;
2720
2721 dev->hotkey_dev->name = "Toshiba input device";
2722 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2723 dev->hotkey_dev->id.bustype = BUS_HOST;
2724
2725 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2726 !dev->kbd_function_keys_supported)
2727 keymap = toshiba_acpi_keymap;
2728 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2729 dev->kbd_function_keys_supported)
2730 keymap = toshiba_acpi_alt_keymap;
2731 else
2732 pr_info("Unknown event type received %x\n",
2733 dev->hotkey_event_type);
2734 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2735 if (error)
2736 goto err_free_dev;
2737
2738 /*
2739 * For some machines the SCI responsible for providing hotkey
2740 * notification doesn't fire. We can trigger the notification
2741 * whenever the Fn key is pressed using the NTFY method, if
2742 * supported, so if it's present set up an i8042 key filter
2743 * for this purpose.
2744 */
2745 ec_handle = ec_get_handle();
2746 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2747 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2748
2749 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2750 if (error) {
2751 pr_err("Error installing key filter\n");
2752 goto err_free_keymap;
2753 }
2754
2755 dev->ntfy_supported = 1;
2756 }
2757
2758 /*
2759 * Determine hotkey query interface. Prefer using the INFO
2760 * method when it is available.
2761 */
2762 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2763 dev->info_supported = 1;
2764 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2765 dev->system_event_supported = 1;
2766
2767 if (!dev->info_supported && !dev->system_event_supported) {
2768 pr_warn("No hotkey query interface found\n");
2769 goto err_remove_filter;
2770 }
2771
2772 error = input_register_device(dev->hotkey_dev);
2773 if (error) {
2774 pr_info("Unable to register input device\n");
2775 goto err_remove_filter;
2776 }
2777
2778 return 0;
2779
2780 err_remove_filter:
2781 if (dev->ntfy_supported)
2782 i8042_remove_filter(toshiba_acpi_i8042_filter);
2783 err_free_keymap:
2784 sparse_keymap_free(dev->hotkey_dev);
2785 err_free_dev:
2786 input_free_device(dev->hotkey_dev);
2787 dev->hotkey_dev = NULL;
2788 return error;
2789}
2790
2791static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2792{
2793 struct backlight_properties props;
2794 int brightness;
2795 int ret;
2796
2797 /*
2798 * Some machines don't support the backlight methods at all, and
2799 * others support it read-only. Either of these is pretty useless,
2800 * so only register the backlight device if the backlight method
2801 * supports both reads and writes.
2802 */
2803 brightness = __get_lcd_brightness(dev);
2804 if (brightness < 0)
2805 return 0;
2806 /*
2807 * If transflective backlight is supported and the brightness is zero
2808 * (lowest brightness level), the set_lcd_brightness function will
2809 * activate the transflective backlight, making the LCD appear to be
2810 * turned off, simply increment the brightness level to avoid that.
2811 */
2812 if (dev->tr_backlight_supported && brightness == 0)
2813 brightness++;
2814 ret = set_lcd_brightness(dev, brightness);
2815 if (ret) {
2816 pr_debug("Backlight method is read-only, disabling backlight support\n");
2817 return 0;
2818 }
2819
2820 /*
2821 * Tell acpi-video-detect code to prefer vendor backlight on all
2822 * systems with transflective backlight and on dmi matched systems.
2823 */
2824 if (dev->tr_backlight_supported ||
2825 dmi_check_system(toshiba_vendor_backlight_dmi))
2826 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2827
2828 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2829 return 0;
2830
2831 memset(&props, 0, sizeof(props));
2832 props.type = BACKLIGHT_PLATFORM;
2833 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2834
2835 /* Adding an extra level and having 0 change to transflective mode */
2836 if (dev->tr_backlight_supported)
2837 props.max_brightness++;
2838
2839 dev->backlight_dev = backlight_device_register("toshiba",
2840 &dev->acpi_dev->dev,
2841 dev,
2842 &toshiba_backlight_data,
2843 &props);
2844 if (IS_ERR(dev->backlight_dev)) {
2845 ret = PTR_ERR(dev->backlight_dev);
2846 pr_err("Could not register toshiba backlight device\n");
2847 dev->backlight_dev = NULL;
2848 return ret;
2849 }
2850
2851 dev->backlight_dev->props.brightness = brightness;
2852 return 0;
2853}
2854
2855static void print_supported_features(struct toshiba_acpi_dev *dev)
2856{
2857 pr_info("Supported laptop features:");
2858
2859 if (dev->hotkey_dev)
2860 pr_cont(" hotkeys");
2861 if (dev->backlight_dev)
2862 pr_cont(" backlight");
2863 if (dev->video_supported)
2864 pr_cont(" video-out");
2865 if (dev->fan_supported)
2866 pr_cont(" fan");
2867 if (dev->tr_backlight_supported)
2868 pr_cont(" transflective-backlight");
2869 if (dev->illumination_supported)
2870 pr_cont(" illumination");
2871 if (dev->kbd_illum_supported)
2872 pr_cont(" keyboard-backlight");
2873 if (dev->touchpad_supported)
2874 pr_cont(" touchpad");
2875 if (dev->eco_supported)
2876 pr_cont(" eco-led");
2877 if (dev->accelerometer_supported)
2878 pr_cont(" accelerometer-axes");
2879 if (dev->usb_sleep_charge_supported)
2880 pr_cont(" usb-sleep-charge");
2881 if (dev->usb_rapid_charge_supported)
2882 pr_cont(" usb-rapid-charge");
2883 if (dev->usb_sleep_music_supported)
2884 pr_cont(" usb-sleep-music");
2885 if (dev->kbd_function_keys_supported)
2886 pr_cont(" special-function-keys");
2887 if (dev->panel_power_on_supported)
2888 pr_cont(" panel-power-on");
2889 if (dev->usb_three_supported)
2890 pr_cont(" usb3");
2891 if (dev->wwan_supported)
2892 pr_cont(" wwan");
2893 if (dev->cooling_method_supported)
2894 pr_cont(" cooling-method");
2895
2896 pr_cont("\n");
2897}
2898
2899static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2900{
2901 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2902
2903 misc_deregister(&dev->miscdev);
2904
2905 remove_toshiba_proc_entries(dev);
2906
2907 if (dev->sysfs_created)
2908 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
2909 &toshiba_attr_group);
2910
2911 if (dev->ntfy_supported) {
2912 i8042_remove_filter(toshiba_acpi_i8042_filter);
2913 cancel_work_sync(&dev->hotkey_work);
2914 }
2915
2916 if (dev->hotkey_dev) {
2917 input_unregister_device(dev->hotkey_dev);
2918 sparse_keymap_free(dev->hotkey_dev);
2919 }
2920
2921 backlight_device_unregister(dev->backlight_dev);
2922
2923 if (dev->illumination_led_registered)
2924 led_classdev_unregister(&dev->led_dev);
2925
2926 if (dev->kbd_led_registered)
2927 led_classdev_unregister(&dev->kbd_led);
2928
2929 if (dev->eco_led_registered)
2930 led_classdev_unregister(&dev->eco_led);
2931
2932 if (dev->wwan_rfk) {
2933 rfkill_unregister(dev->wwan_rfk);
2934 rfkill_destroy(dev->wwan_rfk);
2935 }
2936
2937 if (toshiba_acpi)
2938 toshiba_acpi = NULL;
2939
2940 kfree(dev);
2941
2942 return 0;
2943}
2944
2945static const char *find_hci_method(acpi_handle handle)
2946{
2947 if (acpi_has_method(handle, "GHCI"))
2948 return "GHCI";
2949
2950 if (acpi_has_method(handle, "SPFC"))
2951 return "SPFC";
2952
2953 return NULL;
2954}
2955
2956static int toshiba_acpi_add(struct acpi_device *acpi_dev)
2957{
2958 struct toshiba_acpi_dev *dev;
2959 const char *hci_method;
2960 u32 dummy;
2961 int ret = 0;
2962
2963 if (toshiba_acpi)
2964 return -EBUSY;
2965
2966 pr_info("Toshiba Laptop ACPI Extras version %s\n",
2967 TOSHIBA_ACPI_VERSION);
2968
2969 hci_method = find_hci_method(acpi_dev->handle);
2970 if (!hci_method) {
2971 pr_err("HCI interface not found\n");
2972 return -ENODEV;
2973 }
2974
2975 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
2976 if (!dev)
2977 return -ENOMEM;
2978 dev->acpi_dev = acpi_dev;
2979 dev->method_hci = hci_method;
2980 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
2981 dev->miscdev.name = "toshiba_acpi";
2982 dev->miscdev.fops = &toshiba_acpi_fops;
2983
2984 ret = misc_register(&dev->miscdev);
2985 if (ret) {
2986 pr_err("Failed to register miscdevice\n");
2987 kfree(dev);
2988 return ret;
2989 }
2990
2991 acpi_dev->driver_data = dev;
2992 dev_set_drvdata(&acpi_dev->dev, dev);
2993
2994 /* Query the BIOS for supported features */
2995
2996 /*
2997 * The "Special Functions" are always supported by the laptops
2998 * with the new keyboard layout, query for its presence to help
2999 * determine the keymap layout to use.
3000 */
3001 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3002 dev->kbd_function_keys_supported = !ret;
3003
3004 dev->hotkey_event_type = 0;
3005 if (toshiba_acpi_setup_keyboard(dev))
3006 pr_info("Unable to activate hotkeys\n");
3007
3008 /* Determine whether or not BIOS supports transflective backlight */
3009 ret = get_tr_backlight_status(dev, &dummy);
3010 dev->tr_backlight_supported = !ret;
3011
3012 ret = toshiba_acpi_setup_backlight(dev);
3013 if (ret)
3014 goto error;
3015
3016 toshiba_illumination_available(dev);
3017 if (dev->illumination_supported) {
3018 dev->led_dev.name = "toshiba::illumination";
3019 dev->led_dev.max_brightness = 1;
3020 dev->led_dev.brightness_set = toshiba_illumination_set;
3021 dev->led_dev.brightness_get = toshiba_illumination_get;
3022 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3023 dev->illumination_led_registered = true;
3024 }
3025
3026 toshiba_eco_mode_available(dev);
3027 if (dev->eco_supported) {
3028 dev->eco_led.name = "toshiba::eco_mode";
3029 dev->eco_led.max_brightness = 1;
3030 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3031 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3032 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3033 dev->eco_led_registered = true;
3034 }
3035
3036 toshiba_kbd_illum_available(dev);
3037 /*
3038 * Only register the LED if KBD illumination is supported
3039 * and the keyboard backlight operation mode is set to FN-Z
3040 */
3041 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
3042 dev->kbd_led.name = "toshiba::kbd_backlight";
3043 dev->kbd_led.max_brightness = 1;
3044 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3045 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3046 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3047 dev->kbd_led_registered = true;
3048 }
3049
3050 ret = toshiba_touchpad_get(dev, &dummy);
3051 dev->touchpad_supported = !ret;
3052
3053 toshiba_accelerometer_available(dev);
3054
3055 toshiba_usb_sleep_charge_available(dev);
3056
3057 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3058 dev->usb_rapid_charge_supported = !ret;
3059
3060 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3061 dev->usb_sleep_music_supported = !ret;
3062
3063 ret = toshiba_panel_power_on_get(dev, &dummy);
3064 dev->panel_power_on_supported = !ret;
3065
3066 ret = toshiba_usb_three_get(dev, &dummy);
3067 dev->usb_three_supported = !ret;
3068
3069 ret = get_video_status(dev, &dummy);
3070 dev->video_supported = !ret;
3071
3072 ret = get_fan_status(dev, &dummy);
3073 dev->fan_supported = !ret;
3074
3075 toshiba_wwan_available(dev);
3076 if (dev->wwan_supported)
3077 toshiba_acpi_setup_wwan_rfkill(dev);
3078
3079 toshiba_cooling_method_available(dev);
3080
3081 print_supported_features(dev);
3082
3083 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3084 &toshiba_attr_group);
3085 if (ret) {
3086 dev->sysfs_created = 0;
3087 goto error;
3088 }
3089 dev->sysfs_created = !ret;
3090
3091 create_toshiba_proc_entries(dev);
3092
3093 toshiba_acpi = dev;
3094
3095 return 0;
3096
3097error:
3098 toshiba_acpi_remove(acpi_dev);
3099 return ret;
3100}
3101
3102static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3103{
3104 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3105
3106 switch (event) {
3107 case 0x80: /* Hotkeys and some system events */
3108 /*
3109 * Machines with this WMI GUID aren't supported due to bugs in
3110 * their AML.
3111 *
3112 * Return silently to avoid triggering a netlink event.
3113 */
3114 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3115 return;
3116 toshiba_acpi_process_hotkeys(dev);
3117 break;
3118 case 0x81: /* Dock events */
3119 case 0x82:
3120 case 0x83:
3121 pr_info("Dock event received %x\n", event);
3122 break;
3123 case 0x88: /* Thermal events */
3124 pr_info("Thermal event received\n");
3125 break;
3126 case 0x8f: /* LID closed */
3127 case 0x90: /* LID is closed and Dock has been ejected */
3128 break;
3129 case 0x8c: /* SATA power events */
3130 case 0x8b:
3131 pr_info("SATA power event received %x\n", event);
3132 break;
3133 case 0x92: /* Keyboard backlight mode changed */
3134 toshiba_acpi->kbd_event_generated = true;
3135 /* Update sysfs entries */
3136 if (sysfs_update_group(&acpi_dev->dev.kobj,
3137 &toshiba_attr_group))
3138 pr_err("Unable to update sysfs entries\n");
3139 break;
3140 case 0x85: /* Unknown */
3141 case 0x8d: /* Unknown */
3142 case 0x8e: /* Unknown */
3143 case 0x94: /* Unknown */
3144 case 0x95: /* Unknown */
3145 default:
3146 pr_info("Unknown event received %x\n", event);
3147 break;
3148 }
3149
3150 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3151 dev_name(&acpi_dev->dev),
3152 event, (event == 0x80) ?
3153 dev->last_key_event : 0);
3154}
3155
3156#ifdef CONFIG_PM_SLEEP
3157static int toshiba_acpi_suspend(struct device *device)
3158{
3159 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3160
3161 if (dev->hotkey_dev) {
3162 u32 result;
3163
3164 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3165 if (result != TOS_SUCCESS)
3166 pr_info("Unable to disable hotkeys\n");
3167 }
3168
3169 return 0;
3170}
3171
3172static int toshiba_acpi_resume(struct device *device)
3173{
3174 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3175
3176 if (dev->hotkey_dev) {
3177 if (toshiba_acpi_enable_hotkeys(dev))
3178 pr_info("Unable to re-enable hotkeys\n");
3179 }
3180
3181 if (dev->wwan_rfk) {
3182 if (!toshiba_wireless_status(dev))
3183 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3184 }
3185
3186 return 0;
3187}
3188#endif
3189
3190static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3191 toshiba_acpi_suspend, toshiba_acpi_resume);
3192
3193static struct acpi_driver toshiba_acpi_driver = {
3194 .name = "Toshiba ACPI driver",
3195 .owner = THIS_MODULE,
3196 .ids = toshiba_device_ids,
3197 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3198 .ops = {
3199 .add = toshiba_acpi_add,
3200 .remove = toshiba_acpi_remove,
3201 .notify = toshiba_acpi_notify,
3202 },
3203 .drv.pm = &toshiba_acpi_pm,
3204};
3205
3206static int __init toshiba_acpi_init(void)
3207{
3208 int ret;
3209
3210 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3211 if (!toshiba_proc_dir) {
3212 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3213 return -ENODEV;
3214 }
3215
3216 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3217 if (ret) {
3218 pr_err("Failed to register ACPI driver: %d\n", ret);
3219 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3220 }
3221
3222 return ret;
3223}
3224
3225static void __exit toshiba_acpi_exit(void)
3226{
3227 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3228 if (toshiba_proc_dir)
3229 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3230}
3231
3232module_init(toshiba_acpi_init);
3233module_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);