1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
4 *
5 * Copyright (C) 2002-2004 John Belmonte
6 * Copyright (C) 2008 Philip Langdale
7 * Copyright (C) 2010 Pierre Ducroquet
8 * Copyright (C) 2014-2016 Azael Avalos
9 *
10 * The devolpment page for this driver is located at
11 * http://memebeam.org/toys/ToshibaAcpiDriver.
12 *
13 * Credits:
14 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
15 * engineering the Windows drivers
16 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
17 * Rob Miller - TV out and hotkeys help
18 */
19
20 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21
22 #define TOSHIBA_ACPI_VERSION "0.24"
23 #define PROC_INTERFACE_VERSION 1
24
25 #include <linux/compiler.h>
26 #include <linux/dmi.h>
27 #include <linux/kernel.h>
28 #include <linux/module.h>
29 #include <linux/moduleparam.h>
30 #include <linux/init.h>
31 #include <linux/types.h>
32 #include <linux/proc_fs.h>
33 #include <linux/seq_file.h>
34 #include <linux/backlight.h>
35 #include <linux/input.h>
36 #include <linux/input/sparse-keymap.h>
37 #include <linux/leds.h>
38 #include <linux/slab.h>
39 #include <linux/workqueue.h>
40 #include <linux/i8042.h>
41 #include <linux/acpi.h>
42 #include <linux/uaccess.h>
43 #include <linux/miscdevice.h>
44 #include <linux/rfkill.h>
45 #include <linux/hwmon.h>
46 #include <linux/iio/iio.h>
47 #include <linux/toshiba.h>
48 #include <acpi/battery.h>
49 #include <acpi/video.h>
50
51 MODULE_AUTHOR("John Belmonte");
52 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
53 MODULE_LICENSE("GPL");
54
55 static int turn_on_panel_on_resume = -1;
56 module_param(turn_on_panel_on_resume, int, 0644);
57 MODULE_PARM_DESC(turn_on_panel_on_resume,
58 "Call HCI_PANEL_POWER_ON on resume (-1 = auto, 0 = no, 1 = yes");
59
60 static int hci_hotkey_quickstart = -1;
61 module_param(hci_hotkey_quickstart, int, 0644);
62 MODULE_PARM_DESC(hci_hotkey_quickstart,
63 "Call HCI_HOTKEY_EVENT with value 0x5 for quickstart button support (-1 = auto, 0 = no, 1 = yes");
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 /*
74 * The Toshiba configuration interface is composed of the HCI and the SCI,
75 * which are defined as follows:
76 *
77 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
78 * be uniform across all their models. Ideally we would just call
79 * dedicated ACPI methods instead of using this primitive interface.
80 * However the ACPI methods seem to be incomplete in some areas (for
81 * example they allow setting, but not reading, the LCD brightness value),
82 * so this is still useful.
83 *
84 * SCI stands for "System Configuration Interface" which aim is to
85 * conceal differences in hardware between different models.
86 */
87
88 #define TCI_WORDS 6
89
90 /* Operations */
91 #define HCI_SET 0xff00
92 #define HCI_GET 0xfe00
93 #define SCI_OPEN 0xf100
94 #define SCI_CLOSE 0xf200
95 #define SCI_GET 0xf300
96 #define SCI_SET 0xf400
97
98 /* Return codes */
99 #define TOS_SUCCESS 0x0000
100 #define TOS_SUCCESS2 0x0001
101 #define TOS_OPEN_CLOSE_OK 0x0044
102 #define TOS_FAILURE 0x1000
103 #define TOS_NOT_SUPPORTED 0x8000
104 #define TOS_ALREADY_OPEN 0x8100
105 #define TOS_NOT_OPENED 0x8200
106 #define TOS_INPUT_DATA_ERROR 0x8300
107 #define TOS_WRITE_PROTECTED 0x8400
108 #define TOS_NOT_PRESENT 0x8600
109 #define TOS_FIFO_EMPTY 0x8c00
110 #define TOS_DATA_NOT_AVAILABLE 0x8d20
111 #define TOS_NOT_INITIALIZED 0x8d50
112 #define TOS_NOT_INSTALLED 0x8e00
113
114 /* Registers */
115 #define HCI_PANEL_POWER_ON 0x0002
116 #define HCI_FAN 0x0004
117 #define HCI_TR_BACKLIGHT 0x0005
118 #define HCI_SYSTEM_EVENT 0x0016
119 #define HCI_VIDEO_OUT 0x001c
120 #define HCI_HOTKEY_EVENT 0x001e
121 #define HCI_LCD_BRIGHTNESS 0x002a
122 #define HCI_FAN_RPM 0x0045
123 #define HCI_WIRELESS 0x0056
124 #define HCI_ACCELEROMETER 0x006d
125 #define HCI_COOLING_METHOD 0x007f
126 #define HCI_KBD_ILLUMINATION 0x0095
127 #define HCI_ECO_MODE 0x0097
128 #define HCI_ACCELEROMETER2 0x00a6
129 #define HCI_BATTERY_CHARGE_MODE 0x00ba
130 #define HCI_SYSTEM_INFO 0xc000
131 #define SCI_PANEL_POWER_ON 0x010d
132 #define SCI_ILLUMINATION 0x014e
133 #define SCI_USB_SLEEP_CHARGE 0x0150
134 #define SCI_KBD_ILLUM_STATUS 0x015c
135 #define SCI_USB_SLEEP_MUSIC 0x015e
136 #define SCI_USB_THREE 0x0169
137 #define SCI_TOUCHPAD 0x050e
138 #define SCI_KBD_FUNCTION_KEYS 0x0522
139
140 /* Field definitions */
141 #define HCI_ACCEL_MASK 0x7fff
142 #define HCI_ACCEL_DIRECTION_MASK 0x8000
143 #define HCI_HOTKEY_DISABLE 0x0b
144 #define HCI_HOTKEY_ENABLE_QUICKSTART 0x05
145 #define HCI_HOTKEY_ENABLE 0x09
146 #define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
147 #define HCI_LCD_BRIGHTNESS_BITS 3
148 #define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
149 #define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
150 #define HCI_MISC_SHIFT 0x10
151 #define HCI_SYSTEM_TYPE1 0x10
152 #define HCI_SYSTEM_TYPE2 0x11
153 #define HCI_VIDEO_OUT_LCD 0x1
154 #define HCI_VIDEO_OUT_CRT 0x2
155 #define HCI_VIDEO_OUT_TV 0x4
156 #define SCI_KBD_MODE_MASK 0x1f
157 #define SCI_KBD_MODE_FNZ 0x1
158 #define SCI_KBD_MODE_AUTO 0x2
159 #define SCI_KBD_MODE_ON 0x8
160 #define SCI_KBD_MODE_OFF 0x10
161 #define SCI_KBD_TIME_MAX 0x3c001a
162 #define HCI_WIRELESS_STATUS 0x1
163 #define HCI_WIRELESS_WWAN 0x3
164 #define HCI_WIRELESS_WWAN_STATUS 0x2000
165 #define HCI_WIRELESS_WWAN_POWER 0x4000
166 #define SCI_USB_CHARGE_MODE_MASK 0xff
167 #define SCI_USB_CHARGE_DISABLED 0x00
168 #define SCI_USB_CHARGE_ALTERNATE 0x09
169 #define SCI_USB_CHARGE_TYPICAL 0x11
170 #define SCI_USB_CHARGE_AUTO 0x21
171 #define SCI_USB_CHARGE_BAT_MASK 0x7
172 #define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
173 #define SCI_USB_CHARGE_BAT_LVL_ON 0x4
174 #define SCI_USB_CHARGE_BAT_LVL 0x0200
175 #define SCI_USB_CHARGE_RAPID_DSP 0x0300
176
177 struct toshiba_acpi_dev {
178 struct acpi_device *acpi_dev;
179 const char *method_hci;
180 struct input_dev *hotkey_dev;
181 struct work_struct hotkey_work;
182 struct backlight_device *backlight_dev;
183 struct led_classdev led_dev;
184 struct led_classdev kbd_led;
185 struct led_classdev eco_led;
186 struct miscdevice miscdev;
187 struct rfkill *wwan_rfk;
188 struct iio_dev *indio_dev;
189 #if IS_ENABLED(CONFIG_HWMON)
190 struct device *hwmon_device;
191 #endif
192
193 int force_fan;
194 int last_key_event;
195 int key_event_valid;
196 int kbd_type;
197 int kbd_mode;
198 int kbd_time;
199 int usbsc_bat_level;
200 int usbsc_mode_base;
201 int hotkey_event_type;
202 int max_cooling_method;
203
204 unsigned int illumination_supported:1;
205 unsigned int video_supported:1;
206 unsigned int fan_supported:1;
207 unsigned int fan_rpm_supported:1;
208 unsigned int system_event_supported:1;
209 unsigned int ntfy_supported:1;
210 unsigned int info_supported:1;
211 unsigned int tr_backlight_supported:1;
212 unsigned int kbd_illum_supported:1;
213 unsigned int touchpad_supported:1;
214 unsigned int eco_supported:1;
215 unsigned int accelerometer_supported:1;
216 unsigned int usb_sleep_charge_supported:1;
217 unsigned int usb_rapid_charge_supported:1;
218 unsigned int usb_sleep_music_supported:1;
219 unsigned int kbd_function_keys_supported:1;
220 unsigned int panel_power_on_supported:1;
221 unsigned int usb_three_supported:1;
222 unsigned int wwan_supported:1;
223 unsigned int cooling_method_supported:1;
224 unsigned int battery_charge_mode_supported:1;
225 unsigned int sysfs_created:1;
226 unsigned int special_functions;
227
228 bool kbd_event_generated;
229 bool killswitch;
230 };
231
232 static struct toshiba_acpi_dev *toshiba_acpi;
233
234 static bool disable_hotkeys;
235 module_param(disable_hotkeys, bool, 0444);
236 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
237
238 static const struct acpi_device_id toshiba_device_ids[] = {
239 {"TOS6200", 0},
240 {"TOS6207", 0},
241 {"TOS6208", 0},
242 {"TOS1900", 0},
243 {"", 0},
244 };
245 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
246
247 static const struct key_entry toshiba_acpi_keymap[] = {
248 { KE_KEY, 0x9e, { KEY_RFKILL } },
249 { KE_KEY, 0x101, { KEY_MUTE } },
250 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
251 { KE_KEY, 0x103, { KEY_ZOOMIN } },
252 { KE_KEY, 0x10f, { KEY_TAB } },
253 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
254 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
255 { KE_KEY, 0x13b, { KEY_COFFEE } },
256 { KE_KEY, 0x13c, { KEY_BATTERY } },
257 { KE_KEY, 0x13d, { KEY_SLEEP } },
258 { KE_KEY, 0x13e, { KEY_SUSPEND } },
259 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
260 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
261 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
262 { KE_KEY, 0x142, { KEY_WLAN } },
263 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
264 { KE_KEY, 0x17f, { KEY_FN } },
265 { KE_KEY, 0xb05, { KEY_PROG2 } },
266 { KE_KEY, 0xb06, { KEY_WWW } },
267 { KE_KEY, 0xb07, { KEY_MAIL } },
268 { KE_KEY, 0xb30, { KEY_STOP } },
269 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
270 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
271 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
272 { KE_KEY, 0xb5a, { KEY_MEDIA } },
273 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
274 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
275 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
276 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
277 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
278 { KE_END, 0 },
279 };
280
281 static const struct key_entry toshiba_acpi_alt_keymap[] = {
282 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
283 { KE_KEY, 0x103, { KEY_ZOOMIN } },
284 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
285 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
286 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
287 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
288 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
289 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
290 { KE_KEY, 0x157, { KEY_MUTE } },
291 { KE_KEY, 0x158, { KEY_WLAN } },
292 { KE_END, 0 },
293 };
294
295 /*
296 * Utility
297 */
298
_set_bit(u32 * word,u32 mask,int value)299 static inline void _set_bit(u32 *word, u32 mask, int value)
300 {
301 *word = (*word & ~mask) | (mask * value);
302 }
303
304 /*
305 * ACPI interface wrappers
306 */
307
write_acpi_int(const char * methodName,int val)308 static int write_acpi_int(const char *methodName, int val)
309 {
310 acpi_status status;
311
312 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
313 return (status == AE_OK) ? 0 : -EIO;
314 }
315
316 /*
317 * Perform a raw configuration call. Here we don't care about input or output
318 * buffer format.
319 */
tci_raw(struct toshiba_acpi_dev * dev,const u32 in[TCI_WORDS],u32 out[TCI_WORDS])320 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
321 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
322 {
323 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
324 struct acpi_object_list params;
325 struct acpi_buffer results;
326 acpi_status status;
327 int i;
328
329 params.count = TCI_WORDS;
330 params.pointer = in_objs;
331 for (i = 0; i < TCI_WORDS; ++i) {
332 in_objs[i].type = ACPI_TYPE_INTEGER;
333 in_objs[i].integer.value = in[i];
334 }
335
336 results.length = sizeof(out_objs);
337 results.pointer = out_objs;
338
339 status = acpi_evaluate_object(dev->acpi_dev->handle,
340 (char *)dev->method_hci, ¶ms,
341 &results);
342 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
343 for (i = 0; i < out_objs->package.count; ++i)
344 out[i] = out_objs->package.elements[i].integer.value;
345 }
346
347 return status;
348 }
349
350 /*
351 * Common hci tasks
352 *
353 * In addition to the ACPI status, the HCI system returns a result which
354 * may be useful (such as "not supported").
355 */
356
hci_write(struct toshiba_acpi_dev * dev,u32 reg,u32 in1)357 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
358 {
359 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
360 u32 out[TCI_WORDS];
361 acpi_status status = tci_raw(dev, in, out);
362
363 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
364 }
365
hci_read(struct toshiba_acpi_dev * dev,u32 reg,u32 * out1)366 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
367 {
368 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
369 u32 out[TCI_WORDS];
370 acpi_status status = tci_raw(dev, in, out);
371
372 if (ACPI_FAILURE(status))
373 return TOS_FAILURE;
374
375 *out1 = out[2];
376
377 return out[0];
378 }
379
380 /*
381 * Common sci tasks
382 */
383
sci_open(struct toshiba_acpi_dev * dev)384 static int sci_open(struct toshiba_acpi_dev *dev)
385 {
386 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
387 u32 out[TCI_WORDS];
388 acpi_status status = tci_raw(dev, in, out);
389
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
sci_close(struct toshiba_acpi_dev * dev)421 static 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 = tci_raw(dev, in, out);
426
427 if (ACPI_FAILURE(status)) {
428 pr_err("ACPI call to close SCI failed\n");
429 return;
430 }
431
432 if (out[0] == TOS_OPEN_CLOSE_OK)
433 return;
434 else if (out[0] == TOS_NOT_OPENED)
435 pr_info("Toshiba SCI not opened\n");
436 else if (out[0] == TOS_NOT_PRESENT)
437 pr_info("Toshiba SCI is not present\n");
438 }
439
sci_read(struct toshiba_acpi_dev * dev,u32 reg,u32 * out1)440 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
441 {
442 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
443 u32 out[TCI_WORDS];
444 acpi_status status = tci_raw(dev, in, out);
445
446 if (ACPI_FAILURE(status))
447 return TOS_FAILURE;
448
449 *out1 = out[2];
450
451 return out[0];
452 }
453
sci_write(struct toshiba_acpi_dev * dev,u32 reg,u32 in1)454 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
455 {
456 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
457 u32 out[TCI_WORDS];
458 acpi_status status = tci_raw(dev, in, out);
459
460 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
461 }
462
463 /* Illumination support */
toshiba_illumination_available(struct toshiba_acpi_dev * dev)464 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
465 {
466 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
467 u32 out[TCI_WORDS];
468 acpi_status status;
469
470 dev->illumination_supported = 0;
471
472 if (!sci_open(dev))
473 return;
474
475 status = tci_raw(dev, in, out);
476 sci_close(dev);
477 if (ACPI_FAILURE(status)) {
478 pr_err("ACPI call to query Illumination support failed\n");
479 return;
480 }
481
482 if (out[0] != TOS_SUCCESS)
483 return;
484
485 dev->illumination_supported = 1;
486 }
487
toshiba_illumination_set(struct led_classdev * cdev,enum led_brightness brightness)488 static void toshiba_illumination_set(struct led_classdev *cdev,
489 enum led_brightness brightness)
490 {
491 struct toshiba_acpi_dev *dev = container_of(cdev,
492 struct toshiba_acpi_dev, led_dev);
493 u32 result;
494 u32 state;
495
496 /* First request : initialize communication. */
497 if (!sci_open(dev))
498 return;
499
500 /* Switch the illumination on/off */
501 state = brightness ? 1 : 0;
502 result = sci_write(dev, SCI_ILLUMINATION, state);
503 sci_close(dev);
504 if (result == TOS_FAILURE)
505 pr_err("ACPI call for illumination failed\n");
506 }
507
toshiba_illumination_get(struct led_classdev * cdev)508 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
509 {
510 struct toshiba_acpi_dev *dev = container_of(cdev,
511 struct toshiba_acpi_dev, led_dev);
512 u32 result;
513 u32 state;
514
515 /* First request : initialize communication. */
516 if (!sci_open(dev))
517 return LED_OFF;
518
519 /* Check the illumination */
520 result = sci_read(dev, SCI_ILLUMINATION, &state);
521 sci_close(dev);
522 if (result == TOS_FAILURE) {
523 pr_err("ACPI call for illumination failed\n");
524 return LED_OFF;
525 } else if (result != TOS_SUCCESS) {
526 return LED_OFF;
527 }
528
529 return state ? LED_FULL : LED_OFF;
530 }
531
532 /* KBD Illumination */
toshiba_kbd_illum_available(struct toshiba_acpi_dev * dev)533 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
534 {
535 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
536 u32 out[TCI_WORDS];
537 acpi_status status;
538
539 dev->kbd_illum_supported = 0;
540 dev->kbd_event_generated = false;
541
542 if (!sci_open(dev))
543 return;
544
545 status = tci_raw(dev, in, out);
546 sci_close(dev);
547 if (ACPI_FAILURE(status)) {
548 pr_err("ACPI call to query kbd illumination support failed\n");
549 return;
550 }
551
552 if (out[0] != TOS_SUCCESS)
553 return;
554
555 /*
556 * Check for keyboard backlight timeout max value,
557 * previous kbd backlight implementation set this to
558 * 0x3c0003, and now the new implementation set this
559 * to 0x3c001a, use this to distinguish between them.
560 */
561 if (out[3] == SCI_KBD_TIME_MAX)
562 dev->kbd_type = 2;
563 else
564 dev->kbd_type = 1;
565 /* Get the current keyboard backlight mode */
566 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
567 /* Get the current time (1-60 seconds) */
568 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
569 /* Flag as supported */
570 dev->kbd_illum_supported = 1;
571 }
572
toshiba_kbd_illum_status_set(struct toshiba_acpi_dev * dev,u32 time)573 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
574 {
575 u32 result;
576
577 if (!sci_open(dev))
578 return -EIO;
579
580 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
581 sci_close(dev);
582 if (result == TOS_FAILURE)
583 pr_err("ACPI call to set KBD backlight status failed\n");
584 else if (result == TOS_NOT_SUPPORTED)
585 return -ENODEV;
586
587 return result == TOS_SUCCESS ? 0 : -EIO;
588 }
589
toshiba_kbd_illum_status_get(struct toshiba_acpi_dev * dev,u32 * time)590 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
591 {
592 u32 result;
593
594 if (!sci_open(dev))
595 return -EIO;
596
597 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
598 sci_close(dev);
599 if (result == TOS_FAILURE)
600 pr_err("ACPI call to get KBD backlight status failed\n");
601 else if (result == TOS_NOT_SUPPORTED)
602 return -ENODEV;
603
604 return result == TOS_SUCCESS ? 0 : -EIO;
605 }
606
toshiba_kbd_backlight_get(struct led_classdev * cdev)607 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
608 {
609 struct toshiba_acpi_dev *dev = container_of(cdev,
610 struct toshiba_acpi_dev, kbd_led);
611 u32 result;
612 u32 state;
613
614 /* Check the keyboard backlight state */
615 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
616 if (result == TOS_FAILURE) {
617 pr_err("ACPI call to get the keyboard backlight failed\n");
618 return LED_OFF;
619 } else if (result != TOS_SUCCESS) {
620 return LED_OFF;
621 }
622
623 return state ? LED_FULL : LED_OFF;
624 }
625
toshiba_kbd_backlight_set(struct led_classdev * cdev,enum led_brightness brightness)626 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
627 enum led_brightness brightness)
628 {
629 struct toshiba_acpi_dev *dev = container_of(cdev,
630 struct toshiba_acpi_dev, kbd_led);
631 u32 result;
632 u32 state;
633
634 /* Set the keyboard backlight state */
635 state = brightness ? 1 : 0;
636 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
637 if (result == TOS_FAILURE)
638 pr_err("ACPI call to set KBD Illumination mode failed\n");
639 }
640
641 /* TouchPad support */
toshiba_touchpad_set(struct toshiba_acpi_dev * dev,u32 state)642 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
643 {
644 u32 result;
645
646 if (!sci_open(dev))
647 return -EIO;
648
649 result = sci_write(dev, SCI_TOUCHPAD, state);
650 sci_close(dev);
651 if (result == TOS_FAILURE)
652 pr_err("ACPI call to set the touchpad failed\n");
653 else if (result == TOS_NOT_SUPPORTED)
654 return -ENODEV;
655
656 return result == TOS_SUCCESS ? 0 : -EIO;
657 }
658
toshiba_touchpad_get(struct toshiba_acpi_dev * dev,u32 * state)659 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
660 {
661 u32 result;
662
663 if (!sci_open(dev))
664 return -EIO;
665
666 result = sci_read(dev, SCI_TOUCHPAD, state);
667 sci_close(dev);
668 if (result == TOS_FAILURE)
669 pr_err("ACPI call to query the touchpad failed\n");
670 else if (result == TOS_NOT_SUPPORTED)
671 return -ENODEV;
672
673 return result == TOS_SUCCESS ? 0 : -EIO;
674 }
675
676 /* Eco Mode support */
toshiba_eco_mode_available(struct toshiba_acpi_dev * dev)677 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
678 {
679 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
680 u32 out[TCI_WORDS];
681 acpi_status status;
682
683 dev->eco_supported = 0;
684
685 status = tci_raw(dev, in, out);
686 if (ACPI_FAILURE(status)) {
687 pr_err("ACPI call to get ECO led failed\n");
688 return;
689 }
690
691 if (out[0] == TOS_INPUT_DATA_ERROR || out[0] == TOS_NOT_SUPPORTED) {
692 /*
693 * If we receive 0x8300 (Input Data Error), it means that the
694 * LED device is present, but that we just screwed the input
695 * parameters.
696 *
697 * On some laptops 0x8000 (Not supported) is also returned in
698 * this case, so we need to allow for that as well.
699 *
700 * Let's query the status of the LED to see if we really have a
701 * success response, indicating the actual presense of the LED,
702 * bail out otherwise.
703 */
704 in[3] = 1;
705 status = tci_raw(dev, in, out);
706 if (ACPI_FAILURE(status)) {
707 pr_err("ACPI call to get ECO led failed\n");
708 return;
709 }
710
711 if (out[0] != TOS_SUCCESS)
712 return;
713
714 dev->eco_supported = 1;
715 }
716 }
717
718 static enum led_brightness
toshiba_eco_mode_get_status(struct led_classdev * cdev)719 toshiba_eco_mode_get_status(struct led_classdev *cdev)
720 {
721 struct toshiba_acpi_dev *dev = container_of(cdev,
722 struct toshiba_acpi_dev, eco_led);
723 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
724 u32 out[TCI_WORDS];
725 acpi_status status;
726
727 status = tci_raw(dev, in, out);
728 if (ACPI_FAILURE(status)) {
729 pr_err("ACPI call to get ECO led failed\n");
730 return LED_OFF;
731 }
732
733 if (out[0] != TOS_SUCCESS)
734 return LED_OFF;
735
736 return out[2] ? LED_FULL : LED_OFF;
737 }
738
toshiba_eco_mode_set_status(struct led_classdev * cdev,enum led_brightness brightness)739 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
740 enum led_brightness brightness)
741 {
742 struct toshiba_acpi_dev *dev = container_of(cdev,
743 struct toshiba_acpi_dev, eco_led);
744 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
745 u32 out[TCI_WORDS];
746 acpi_status status;
747
748 /* Switch the Eco Mode led on/off */
749 in[2] = (brightness) ? 1 : 0;
750 status = tci_raw(dev, in, out);
751 if (ACPI_FAILURE(status))
752 pr_err("ACPI call to set ECO led failed\n");
753 }
754
755 /* Accelerometer support */
toshiba_accelerometer_available(struct toshiba_acpi_dev * dev)756 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
757 {
758 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
759 u32 out[TCI_WORDS];
760 acpi_status status;
761
762 dev->accelerometer_supported = 0;
763
764 /*
765 * Check if the accelerometer call exists,
766 * this call also serves as initialization
767 */
768 status = tci_raw(dev, in, out);
769 if (ACPI_FAILURE(status)) {
770 pr_err("ACPI call to query the accelerometer failed\n");
771 return;
772 }
773
774 if (out[0] != TOS_SUCCESS)
775 return;
776
777 dev->accelerometer_supported = 1;
778 }
779
toshiba_accelerometer_get(struct toshiba_acpi_dev * dev,u32 * xy,u32 * z)780 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
781 u32 *xy, u32 *z)
782 {
783 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
784 u32 out[TCI_WORDS];
785 acpi_status status;
786
787 /* Check the Accelerometer status */
788 status = tci_raw(dev, in, out);
789 if (ACPI_FAILURE(status)) {
790 pr_err("ACPI call to query the accelerometer failed\n");
791 return -EIO;
792 }
793
794 if (out[0] == TOS_NOT_SUPPORTED)
795 return -ENODEV;
796
797 if (out[0] != TOS_SUCCESS)
798 return -EIO;
799
800 *xy = out[2];
801 *z = out[4];
802
803 return 0;
804 }
805
806 /* Sleep (Charge and Music) utilities support */
toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev * dev)807 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
808 {
809 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
810 u32 out[TCI_WORDS];
811 acpi_status status;
812
813 dev->usb_sleep_charge_supported = 0;
814
815 if (!sci_open(dev))
816 return;
817
818 status = tci_raw(dev, in, out);
819 if (ACPI_FAILURE(status)) {
820 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
821 sci_close(dev);
822 return;
823 }
824
825 if (out[0] != TOS_SUCCESS) {
826 sci_close(dev);
827 return;
828 }
829
830 dev->usbsc_mode_base = out[4];
831
832 in[5] = SCI_USB_CHARGE_BAT_LVL;
833 status = tci_raw(dev, in, out);
834 sci_close(dev);
835 if (ACPI_FAILURE(status)) {
836 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
837 return;
838 }
839
840 if (out[0] != TOS_SUCCESS)
841 return;
842
843 dev->usbsc_bat_level = out[2];
844 /* Flag as supported */
845 dev->usb_sleep_charge_supported = 1;
846 }
847
toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev * dev,u32 * mode)848 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
849 u32 *mode)
850 {
851 u32 result;
852
853 if (!sci_open(dev))
854 return -EIO;
855
856 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
857 sci_close(dev);
858 if (result == TOS_FAILURE)
859 pr_err("ACPI call to set USB S&C mode failed\n");
860 else if (result == TOS_NOT_SUPPORTED)
861 return -ENODEV;
862
863 return result == TOS_SUCCESS ? 0 : -EIO;
864 }
865
toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev * dev,u32 mode)866 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
867 u32 mode)
868 {
869 u32 result;
870
871 if (!sci_open(dev))
872 return -EIO;
873
874 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
875 sci_close(dev);
876 if (result == TOS_FAILURE)
877 pr_err("ACPI call to set USB S&C mode failed\n");
878 else if (result == TOS_NOT_SUPPORTED)
879 return -ENODEV;
880
881 return result == TOS_SUCCESS ? 0 : -EIO;
882 }
883
toshiba_sleep_functions_status_get(struct toshiba_acpi_dev * dev,u32 * mode)884 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
885 u32 *mode)
886 {
887 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
888 u32 out[TCI_WORDS];
889 acpi_status status;
890
891 if (!sci_open(dev))
892 return -EIO;
893
894 in[5] = SCI_USB_CHARGE_BAT_LVL;
895 status = tci_raw(dev, in, out);
896 sci_close(dev);
897 if (ACPI_FAILURE(status)) {
898 pr_err("ACPI call to get USB S&C battery level failed\n");
899 return -EIO;
900 }
901
902 if (out[0] == TOS_NOT_SUPPORTED)
903 return -ENODEV;
904
905 if (out[0] != TOS_SUCCESS)
906 return -EIO;
907
908 *mode = out[2];
909
910 return 0;
911
912 }
913
toshiba_sleep_functions_status_set(struct toshiba_acpi_dev * dev,u32 mode)914 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
915 u32 mode)
916 {
917 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
918 u32 out[TCI_WORDS];
919 acpi_status status;
920
921 if (!sci_open(dev))
922 return -EIO;
923
924 in[2] = mode;
925 in[5] = SCI_USB_CHARGE_BAT_LVL;
926 status = tci_raw(dev, in, out);
927 sci_close(dev);
928 if (ACPI_FAILURE(status)) {
929 pr_err("ACPI call to set USB S&C battery level failed\n");
930 return -EIO;
931 }
932
933 if (out[0] == TOS_NOT_SUPPORTED)
934 return -ENODEV;
935
936 return out[0] == TOS_SUCCESS ? 0 : -EIO;
937 }
938
toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev * dev,u32 * state)939 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
940 u32 *state)
941 {
942 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
943 u32 out[TCI_WORDS];
944 acpi_status status;
945
946 if (!sci_open(dev))
947 return -EIO;
948
949 in[5] = SCI_USB_CHARGE_RAPID_DSP;
950 status = tci_raw(dev, in, out);
951 sci_close(dev);
952 if (ACPI_FAILURE(status)) {
953 pr_err("ACPI call to get USB Rapid Charge failed\n");
954 return -EIO;
955 }
956
957 if (out[0] == TOS_NOT_SUPPORTED)
958 return -ENODEV;
959
960 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
961 return -EIO;
962
963 *state = out[2];
964
965 return 0;
966 }
967
toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev * dev,u32 state)968 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
969 u32 state)
970 {
971 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
972 u32 out[TCI_WORDS];
973 acpi_status status;
974
975 if (!sci_open(dev))
976 return -EIO;
977
978 in[2] = state;
979 in[5] = SCI_USB_CHARGE_RAPID_DSP;
980 status = tci_raw(dev, in, out);
981 sci_close(dev);
982 if (ACPI_FAILURE(status)) {
983 pr_err("ACPI call to set USB Rapid Charge failed\n");
984 return -EIO;
985 }
986
987 if (out[0] == TOS_NOT_SUPPORTED)
988 return -ENODEV;
989
990 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
991 }
992
toshiba_usb_sleep_music_get(struct toshiba_acpi_dev * dev,u32 * state)993 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
994 {
995 u32 result;
996
997 if (!sci_open(dev))
998 return -EIO;
999
1000 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
1001 sci_close(dev);
1002 if (result == TOS_FAILURE)
1003 pr_err("ACPI call to get Sleep and Music failed\n");
1004 else if (result == TOS_NOT_SUPPORTED)
1005 return -ENODEV;
1006
1007 return result == TOS_SUCCESS ? 0 : -EIO;
1008 }
1009
toshiba_usb_sleep_music_set(struct toshiba_acpi_dev * dev,u32 state)1010 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1011 {
1012 u32 result;
1013
1014 if (!sci_open(dev))
1015 return -EIO;
1016
1017 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1018 sci_close(dev);
1019 if (result == TOS_FAILURE)
1020 pr_err("ACPI call to set Sleep and Music failed\n");
1021 else if (result == TOS_NOT_SUPPORTED)
1022 return -ENODEV;
1023
1024 return result == TOS_SUCCESS ? 0 : -EIO;
1025 }
1026
1027 /* Keyboard function keys */
toshiba_function_keys_get(struct toshiba_acpi_dev * dev,u32 * mode)1028 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1029 {
1030 u32 result;
1031
1032 if (!sci_open(dev))
1033 return -EIO;
1034
1035 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1036 sci_close(dev);
1037 if (result == TOS_FAILURE)
1038 pr_err("ACPI call to get KBD function keys failed\n");
1039 else if (result == TOS_NOT_SUPPORTED)
1040 return -ENODEV;
1041
1042 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1043 }
1044
toshiba_function_keys_set(struct toshiba_acpi_dev * dev,u32 mode)1045 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1046 {
1047 u32 result;
1048
1049 if (!sci_open(dev))
1050 return -EIO;
1051
1052 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1053 sci_close(dev);
1054 if (result == TOS_FAILURE)
1055 pr_err("ACPI call to set KBD function keys failed\n");
1056 else if (result == TOS_NOT_SUPPORTED)
1057 return -ENODEV;
1058
1059 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1060 }
1061
1062 /* Panel Power ON */
toshiba_panel_power_on_get(struct toshiba_acpi_dev * dev,u32 * state)1063 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1064 {
1065 u32 result;
1066
1067 if (!sci_open(dev))
1068 return -EIO;
1069
1070 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1071 sci_close(dev);
1072 if (result == TOS_FAILURE)
1073 pr_err("ACPI call to get Panel Power ON failed\n");
1074 else if (result == TOS_NOT_SUPPORTED)
1075 return -ENODEV;
1076
1077 return result == TOS_SUCCESS ? 0 : -EIO;
1078 }
1079
toshiba_panel_power_on_set(struct toshiba_acpi_dev * dev,u32 state)1080 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1081 {
1082 u32 result;
1083
1084 if (!sci_open(dev))
1085 return -EIO;
1086
1087 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1088 sci_close(dev);
1089 if (result == TOS_FAILURE)
1090 pr_err("ACPI call to set Panel Power ON failed\n");
1091 else if (result == TOS_NOT_SUPPORTED)
1092 return -ENODEV;
1093
1094 return result == TOS_SUCCESS ? 0 : -EIO;
1095 }
1096
1097 /* USB Three */
toshiba_usb_three_get(struct toshiba_acpi_dev * dev,u32 * state)1098 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1099 {
1100 u32 result;
1101
1102 if (!sci_open(dev))
1103 return -EIO;
1104
1105 result = sci_read(dev, SCI_USB_THREE, state);
1106 sci_close(dev);
1107 if (result == TOS_FAILURE)
1108 pr_err("ACPI call to get USB 3 failed\n");
1109 else if (result == TOS_NOT_SUPPORTED)
1110 return -ENODEV;
1111
1112 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1113 }
1114
toshiba_usb_three_set(struct toshiba_acpi_dev * dev,u32 state)1115 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1116 {
1117 u32 result;
1118
1119 if (!sci_open(dev))
1120 return -EIO;
1121
1122 result = sci_write(dev, SCI_USB_THREE, state);
1123 sci_close(dev);
1124 if (result == TOS_FAILURE)
1125 pr_err("ACPI call to set USB 3 failed\n");
1126 else if (result == TOS_NOT_SUPPORTED)
1127 return -ENODEV;
1128
1129 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1130 }
1131
1132 /* Hotkey Event type */
toshiba_hotkey_event_type_get(struct toshiba_acpi_dev * dev,u32 * type)1133 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1134 u32 *type)
1135 {
1136 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1137 u32 out[TCI_WORDS];
1138 acpi_status status;
1139
1140 status = tci_raw(dev, in, out);
1141 if (ACPI_FAILURE(status)) {
1142 pr_err("ACPI call to get System type failed\n");
1143 return -EIO;
1144 }
1145
1146 if (out[0] == TOS_NOT_SUPPORTED)
1147 return -ENODEV;
1148
1149 if (out[0] != TOS_SUCCESS)
1150 return -EIO;
1151
1152 *type = out[3];
1153
1154 return 0;
1155 }
1156
1157 /* Wireless status (RFKill, WLAN, BT, WWAN) */
toshiba_wireless_status(struct toshiba_acpi_dev * dev)1158 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1159 {
1160 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1161 u32 out[TCI_WORDS];
1162 acpi_status status;
1163
1164 in[3] = HCI_WIRELESS_STATUS;
1165 status = tci_raw(dev, in, out);
1166
1167 if (ACPI_FAILURE(status)) {
1168 pr_err("ACPI call to get Wireless status failed\n");
1169 return -EIO;
1170 }
1171
1172 if (out[0] == TOS_NOT_SUPPORTED)
1173 return -ENODEV;
1174
1175 if (out[0] != TOS_SUCCESS)
1176 return -EIO;
1177
1178 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1179
1180 return 0;
1181 }
1182
1183 /* WWAN */
toshiba_wwan_available(struct toshiba_acpi_dev * dev)1184 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1185 {
1186 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1187 u32 out[TCI_WORDS];
1188 acpi_status status;
1189
1190 dev->wwan_supported = 0;
1191
1192 /*
1193 * WWAN support can be queried by setting the in[3] value to
1194 * HCI_WIRELESS_WWAN (0x03).
1195 *
1196 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1197 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1198 *
1199 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1200 * or TOS_NOT_SUPPORTED (0x8000).
1201 */
1202 in[3] = HCI_WIRELESS_WWAN;
1203 status = tci_raw(dev, in, out);
1204 if (ACPI_FAILURE(status)) {
1205 pr_err("ACPI call to get WWAN status failed\n");
1206 return;
1207 }
1208
1209 if (out[0] != TOS_SUCCESS)
1210 return;
1211
1212 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1213 }
1214
toshiba_wwan_set(struct toshiba_acpi_dev * dev,u32 state)1215 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1216 {
1217 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1218 u32 out[TCI_WORDS];
1219 acpi_status status;
1220
1221 in[3] = HCI_WIRELESS_WWAN_STATUS;
1222 status = tci_raw(dev, in, out);
1223 if (ACPI_FAILURE(status)) {
1224 pr_err("ACPI call to set WWAN status failed\n");
1225 return -EIO;
1226 }
1227
1228 if (out[0] == TOS_NOT_SUPPORTED)
1229 return -ENODEV;
1230
1231 if (out[0] != TOS_SUCCESS)
1232 return -EIO;
1233
1234 /*
1235 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1236 * (de)activate the device, but some others need the
1237 * HCI_WIRELESS_WWAN_POWER call as well.
1238 */
1239 in[3] = HCI_WIRELESS_WWAN_POWER;
1240 status = tci_raw(dev, in, out);
1241 if (ACPI_FAILURE(status)) {
1242 pr_err("ACPI call to set WWAN power failed\n");
1243 return -EIO;
1244 }
1245
1246 if (out[0] == TOS_NOT_SUPPORTED)
1247 return -ENODEV;
1248
1249 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1250 }
1251
1252 /* Cooling Method */
toshiba_cooling_method_available(struct toshiba_acpi_dev * dev)1253 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1254 {
1255 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1256 u32 out[TCI_WORDS];
1257 acpi_status status;
1258
1259 dev->cooling_method_supported = 0;
1260 dev->max_cooling_method = 0;
1261
1262 status = tci_raw(dev, in, out);
1263 if (ACPI_FAILURE(status)) {
1264 pr_err("ACPI call to get Cooling Method failed\n");
1265 return;
1266 }
1267
1268 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1269 return;
1270
1271 dev->cooling_method_supported = 1;
1272 dev->max_cooling_method = out[3];
1273 }
1274
toshiba_cooling_method_get(struct toshiba_acpi_dev * dev,u32 * state)1275 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1276 {
1277 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1278
1279 if (result == TOS_FAILURE)
1280 pr_err("ACPI call to get Cooling Method failed\n");
1281
1282 if (result == TOS_NOT_SUPPORTED)
1283 return -ENODEV;
1284
1285 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1286 }
1287
toshiba_cooling_method_set(struct toshiba_acpi_dev * dev,u32 state)1288 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1289 {
1290 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1291
1292 if (result == TOS_FAILURE)
1293 pr_err("ACPI call to set Cooling Method failed\n");
1294
1295 if (result == TOS_NOT_SUPPORTED)
1296 return -ENODEV;
1297
1298 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1299 }
1300
1301 /* Battery charge control */
toshiba_battery_charge_mode_available(struct toshiba_acpi_dev * dev)1302 static void toshiba_battery_charge_mode_available(struct toshiba_acpi_dev *dev)
1303 {
1304 u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0 };
1305 u32 out[TCI_WORDS];
1306 acpi_status status;
1307
1308 dev->battery_charge_mode_supported = 0;
1309
1310 status = tci_raw(dev, in, out);
1311 if (ACPI_FAILURE(status)) {
1312 pr_err("ACPI call to get Battery Charge Mode failed\n");
1313 return;
1314 }
1315
1316 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1317 return;
1318
1319 dev->battery_charge_mode_supported = 1;
1320 }
1321
toshiba_battery_charge_mode_get(struct toshiba_acpi_dev * dev,u32 * state)1322 static int toshiba_battery_charge_mode_get(struct toshiba_acpi_dev *dev, u32 *state)
1323 {
1324 u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0x1 };
1325 u32 out[TCI_WORDS];
1326 int retries = 3;
1327
1328 do {
1329 acpi_status status = tci_raw(dev, in, out);
1330
1331 if (ACPI_FAILURE(status))
1332 pr_err("ACPI call to get Battery Charge Mode failed\n");
1333 switch (out[0]) {
1334 case TOS_SUCCESS:
1335 case TOS_SUCCESS2:
1336 *state = out[2];
1337 return 0;
1338 case TOS_NOT_SUPPORTED:
1339 return -ENODEV;
1340 case TOS_DATA_NOT_AVAILABLE:
1341 retries--;
1342 break;
1343 default:
1344 return -EIO;
1345 }
1346 } while (retries);
1347
1348 return -EIO;
1349 }
1350
toshiba_battery_charge_mode_set(struct toshiba_acpi_dev * dev,u32 state)1351 static int toshiba_battery_charge_mode_set(struct toshiba_acpi_dev *dev, u32 state)
1352 {
1353 u32 result = hci_write(dev, HCI_BATTERY_CHARGE_MODE, state);
1354
1355 if (result == TOS_FAILURE)
1356 pr_err("ACPI call to set Battery Charge Mode failed\n");
1357
1358 if (result == TOS_NOT_SUPPORTED)
1359 return -ENODEV;
1360
1361 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1362 }
1363
1364 /* Transflective Backlight */
get_tr_backlight_status(struct toshiba_acpi_dev * dev,u32 * status)1365 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1366 {
1367 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1368
1369 if (result == TOS_FAILURE)
1370 pr_err("ACPI call to get Transflective Backlight failed\n");
1371 else if (result == TOS_NOT_SUPPORTED)
1372 return -ENODEV;
1373
1374 return result == TOS_SUCCESS ? 0 : -EIO;
1375 }
1376
set_tr_backlight_status(struct toshiba_acpi_dev * dev,u32 status)1377 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1378 {
1379 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1380
1381 if (result == TOS_FAILURE)
1382 pr_err("ACPI call to set Transflective Backlight failed\n");
1383 else if (result == TOS_NOT_SUPPORTED)
1384 return -ENODEV;
1385
1386 return result == TOS_SUCCESS ? 0 : -EIO;
1387 }
1388
1389 static struct proc_dir_entry *toshiba_proc_dir;
1390
1391 /* LCD Brightness */
__get_lcd_brightness(struct toshiba_acpi_dev * dev)1392 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1393 {
1394 int brightness = 0;
1395 u32 result;
1396 u32 value;
1397
1398 if (dev->tr_backlight_supported) {
1399 int ret = get_tr_backlight_status(dev, &value);
1400
1401 if (ret)
1402 return ret;
1403 if (value)
1404 return 0;
1405 brightness++;
1406 }
1407
1408 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1409 if (result == TOS_FAILURE)
1410 pr_err("ACPI call to get LCD Brightness failed\n");
1411 else if (result == TOS_NOT_SUPPORTED)
1412 return -ENODEV;
1413
1414 return result == TOS_SUCCESS ?
1415 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1416 -EIO;
1417 }
1418
get_lcd_brightness(struct backlight_device * bd)1419 static int get_lcd_brightness(struct backlight_device *bd)
1420 {
1421 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1422
1423 return __get_lcd_brightness(dev);
1424 }
1425
lcd_proc_show(struct seq_file * m,void * v)1426 static int lcd_proc_show(struct seq_file *m, void *v)
1427 {
1428 struct toshiba_acpi_dev *dev = m->private;
1429 int levels;
1430 int value;
1431
1432 if (!dev->backlight_dev)
1433 return -ENODEV;
1434
1435 levels = dev->backlight_dev->props.max_brightness + 1;
1436 value = get_lcd_brightness(dev->backlight_dev);
1437 if (value < 0) {
1438 pr_err("Error reading LCD brightness\n");
1439 return value;
1440 }
1441
1442 seq_printf(m, "brightness: %d\n", value);
1443 seq_printf(m, "brightness_levels: %d\n", levels);
1444
1445 return 0;
1446 }
1447
lcd_proc_open(struct inode * inode,struct file * file)1448 static int lcd_proc_open(struct inode *inode, struct file *file)
1449 {
1450 return single_open(file, lcd_proc_show, pde_data(inode));
1451 }
1452
set_lcd_brightness(struct toshiba_acpi_dev * dev,int value)1453 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1454 {
1455 u32 result;
1456
1457 if (dev->tr_backlight_supported) {
1458 int ret = set_tr_backlight_status(dev, !value);
1459
1460 if (ret)
1461 return ret;
1462 if (value)
1463 value--;
1464 }
1465
1466 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1467 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1468 if (result == TOS_FAILURE)
1469 pr_err("ACPI call to set LCD Brightness failed\n");
1470 else if (result == TOS_NOT_SUPPORTED)
1471 return -ENODEV;
1472
1473 return result == TOS_SUCCESS ? 0 : -EIO;
1474 }
1475
set_lcd_status(struct backlight_device * bd)1476 static int set_lcd_status(struct backlight_device *bd)
1477 {
1478 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1479
1480 return set_lcd_brightness(dev, bd->props.brightness);
1481 }
1482
lcd_proc_write(struct file * file,const char __user * buf,size_t count,loff_t * pos)1483 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1484 size_t count, loff_t *pos)
1485 {
1486 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1487 char cmd[42];
1488 size_t len;
1489 int levels;
1490 int value;
1491
1492 len = min(count, sizeof(cmd) - 1);
1493 if (copy_from_user(cmd, buf, len))
1494 return -EFAULT;
1495 cmd[len] = '\0';
1496
1497 levels = dev->backlight_dev->props.max_brightness + 1;
1498 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1499 value < 0 && value > levels)
1500 return -EINVAL;
1501
1502 if (set_lcd_brightness(dev, value))
1503 return -EIO;
1504
1505 return count;
1506 }
1507
1508 static const struct proc_ops lcd_proc_ops = {
1509 .proc_open = lcd_proc_open,
1510 .proc_read = seq_read,
1511 .proc_lseek = seq_lseek,
1512 .proc_release = single_release,
1513 .proc_write = lcd_proc_write,
1514 };
1515
1516 /* Video-Out */
get_video_status(struct toshiba_acpi_dev * dev,u32 * status)1517 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1518 {
1519 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1520
1521 if (result == TOS_FAILURE)
1522 pr_err("ACPI call to get Video-Out failed\n");
1523 else if (result == TOS_NOT_SUPPORTED)
1524 return -ENODEV;
1525
1526 return result == TOS_SUCCESS ? 0 : -EIO;
1527 }
1528
video_proc_show(struct seq_file * m,void * v)1529 static int video_proc_show(struct seq_file *m, void *v)
1530 {
1531 struct toshiba_acpi_dev *dev = m->private;
1532 int is_lcd, is_crt, is_tv;
1533 u32 value;
1534
1535 if (get_video_status(dev, &value))
1536 return -EIO;
1537
1538 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1539 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1540 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1541
1542 seq_printf(m, "lcd_out: %d\n", is_lcd);
1543 seq_printf(m, "crt_out: %d\n", is_crt);
1544 seq_printf(m, "tv_out: %d\n", is_tv);
1545
1546 return 0;
1547 }
1548
video_proc_open(struct inode * inode,struct file * file)1549 static int video_proc_open(struct inode *inode, struct file *file)
1550 {
1551 return single_open(file, video_proc_show, pde_data(inode));
1552 }
1553
video_proc_write(struct file * file,const char __user * buf,size_t count,loff_t * pos)1554 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1555 size_t count, loff_t *pos)
1556 {
1557 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1558 char *buffer;
1559 char *cmd;
1560 int lcd_out = -1, crt_out = -1, tv_out = -1;
1561 int remain = count;
1562 int value;
1563 int ret;
1564 u32 video_out;
1565
1566 cmd = memdup_user_nul(buf, count);
1567 if (IS_ERR(cmd))
1568 return PTR_ERR(cmd);
1569
1570 buffer = cmd;
1571
1572 /*
1573 * Scan expression. Multiple expressions may be delimited with ;
1574 * NOTE: To keep scanning simple, invalid fields are ignored.
1575 */
1576 while (remain) {
1577 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1578 lcd_out = value & 1;
1579 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1580 crt_out = value & 1;
1581 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1582 tv_out = value & 1;
1583 /* Advance to one character past the next ; */
1584 do {
1585 ++buffer;
1586 --remain;
1587 } while (remain && *(buffer - 1) != ';');
1588 }
1589
1590 kfree(cmd);
1591
1592 ret = get_video_status(dev, &video_out);
1593 if (!ret) {
1594 unsigned int new_video_out = video_out;
1595
1596 if (lcd_out != -1)
1597 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1598 if (crt_out != -1)
1599 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1600 if (tv_out != -1)
1601 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1602 /*
1603 * To avoid unnecessary video disruption, only write the new
1604 * video setting if something changed.
1605 */
1606 if (new_video_out != video_out)
1607 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1608 }
1609
1610 return ret ? -EIO : count;
1611 }
1612
1613 static const struct proc_ops video_proc_ops = {
1614 .proc_open = video_proc_open,
1615 .proc_read = seq_read,
1616 .proc_lseek = seq_lseek,
1617 .proc_release = single_release,
1618 .proc_write = video_proc_write,
1619 };
1620
1621 /* Fan status */
get_fan_status(struct toshiba_acpi_dev * dev,u32 * status)1622 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1623 {
1624 u32 result = hci_read(dev, HCI_FAN, status);
1625
1626 if (result == TOS_FAILURE)
1627 pr_err("ACPI call to get Fan status failed\n");
1628 else if (result == TOS_NOT_SUPPORTED)
1629 return -ENODEV;
1630
1631 return result == TOS_SUCCESS ? 0 : -EIO;
1632 }
1633
set_fan_status(struct toshiba_acpi_dev * dev,u32 status)1634 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1635 {
1636 u32 result = hci_write(dev, HCI_FAN, status);
1637
1638 if (result == TOS_FAILURE)
1639 pr_err("ACPI call to set Fan status failed\n");
1640 else if (result == TOS_NOT_SUPPORTED)
1641 return -ENODEV;
1642
1643 return result == TOS_SUCCESS ? 0 : -EIO;
1644 }
1645
fan_proc_show(struct seq_file * m,void * v)1646 static int fan_proc_show(struct seq_file *m, void *v)
1647 {
1648 struct toshiba_acpi_dev *dev = m->private;
1649 u32 value;
1650
1651 if (get_fan_status(dev, &value))
1652 return -EIO;
1653
1654 seq_printf(m, "running: %d\n", (value > 0));
1655 seq_printf(m, "force_on: %d\n", dev->force_fan);
1656
1657 return 0;
1658 }
1659
fan_proc_open(struct inode * inode,struct file * file)1660 static int fan_proc_open(struct inode *inode, struct file *file)
1661 {
1662 return single_open(file, fan_proc_show, pde_data(inode));
1663 }
1664
fan_proc_write(struct file * file,const char __user * buf,size_t count,loff_t * pos)1665 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1666 size_t count, loff_t *pos)
1667 {
1668 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1669 char cmd[42];
1670 size_t len;
1671 int value;
1672
1673 len = min(count, sizeof(cmd) - 1);
1674 if (copy_from_user(cmd, buf, len))
1675 return -EFAULT;
1676 cmd[len] = '\0';
1677
1678 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1679 value != 0 && value != 1)
1680 return -EINVAL;
1681
1682 if (set_fan_status(dev, value))
1683 return -EIO;
1684
1685 dev->force_fan = value;
1686
1687 return count;
1688 }
1689
1690 static const struct proc_ops fan_proc_ops = {
1691 .proc_open = fan_proc_open,
1692 .proc_read = seq_read,
1693 .proc_lseek = seq_lseek,
1694 .proc_release = single_release,
1695 .proc_write = fan_proc_write,
1696 };
1697
1698 /* Fan RPM */
get_fan_rpm(struct toshiba_acpi_dev * dev,u32 * rpm)1699 static int get_fan_rpm(struct toshiba_acpi_dev *dev, u32 *rpm)
1700 {
1701 u32 in[TCI_WORDS] = { HCI_GET, HCI_FAN_RPM, 0, 1, 0, 0 };
1702 u32 out[TCI_WORDS];
1703 acpi_status status = tci_raw(dev, in, out);
1704
1705 if (ACPI_FAILURE(status)) {
1706 pr_err("ACPI call to get Fan speed failed\n");
1707 return -EIO;
1708 }
1709
1710 if (out[0] == TOS_NOT_SUPPORTED)
1711 return -ENODEV;
1712
1713 if (out[0] == TOS_SUCCESS) {
1714 *rpm = out[2];
1715 return 0;
1716 }
1717
1718 return -EIO;
1719 }
1720
keys_proc_show(struct seq_file * m,void * v)1721 static int keys_proc_show(struct seq_file *m, void *v)
1722 {
1723 struct toshiba_acpi_dev *dev = m->private;
1724
1725 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1726 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1727
1728 return 0;
1729 }
1730
keys_proc_open(struct inode * inode,struct file * file)1731 static int keys_proc_open(struct inode *inode, struct file *file)
1732 {
1733 return single_open(file, keys_proc_show, pde_data(inode));
1734 }
1735
keys_proc_write(struct file * file,const char __user * buf,size_t count,loff_t * pos)1736 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1737 size_t count, loff_t *pos)
1738 {
1739 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1740 char cmd[42];
1741 size_t len;
1742 int value;
1743
1744 len = min(count, sizeof(cmd) - 1);
1745 if (copy_from_user(cmd, buf, len))
1746 return -EFAULT;
1747 cmd[len] = '\0';
1748
1749 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1750 dev->key_event_valid = 0;
1751 else
1752 return -EINVAL;
1753
1754 return count;
1755 }
1756
1757 static const struct proc_ops keys_proc_ops = {
1758 .proc_open = keys_proc_open,
1759 .proc_read = seq_read,
1760 .proc_lseek = seq_lseek,
1761 .proc_release = single_release,
1762 .proc_write = keys_proc_write,
1763 };
1764
version_proc_show(struct seq_file * m,void * v)1765 static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1766 {
1767 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1768 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1769 return 0;
1770 }
1771
1772 /*
1773 * Proc and module init
1774 */
1775
1776 #define PROC_TOSHIBA "toshiba"
1777
create_toshiba_proc_entries(struct toshiba_acpi_dev * dev)1778 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1779 {
1780 if (dev->backlight_dev)
1781 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1782 &lcd_proc_ops, dev);
1783 if (dev->video_supported)
1784 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1785 &video_proc_ops, dev);
1786 if (dev->fan_supported)
1787 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1788 &fan_proc_ops, dev);
1789 if (dev->hotkey_dev)
1790 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1791 &keys_proc_ops, dev);
1792 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1793 version_proc_show, dev);
1794 }
1795
remove_toshiba_proc_entries(struct toshiba_acpi_dev * dev)1796 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1797 {
1798 if (dev->backlight_dev)
1799 remove_proc_entry("lcd", toshiba_proc_dir);
1800 if (dev->video_supported)
1801 remove_proc_entry("video", toshiba_proc_dir);
1802 if (dev->fan_supported)
1803 remove_proc_entry("fan", toshiba_proc_dir);
1804 if (dev->hotkey_dev)
1805 remove_proc_entry("keys", toshiba_proc_dir);
1806 remove_proc_entry("version", toshiba_proc_dir);
1807 }
1808
1809 static const struct backlight_ops toshiba_backlight_data = {
1810 .options = BL_CORE_SUSPENDRESUME,
1811 .get_brightness = get_lcd_brightness,
1812 .update_status = set_lcd_status,
1813 };
1814
1815 /* Keyboard backlight work */
1816 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1817
1818 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1819
1820 /*
1821 * Sysfs files
1822 */
version_show(struct device * dev,struct device_attribute * attr,char * buf)1823 static ssize_t version_show(struct device *dev,
1824 struct device_attribute *attr, char *buf)
1825 {
1826 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1827 }
1828 static DEVICE_ATTR_RO(version);
1829
fan_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1830 static ssize_t fan_store(struct device *dev,
1831 struct device_attribute *attr,
1832 const char *buf, size_t count)
1833 {
1834 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1835 int state;
1836 int ret;
1837
1838 ret = kstrtoint(buf, 0, &state);
1839 if (ret)
1840 return ret;
1841
1842 if (state != 0 && state != 1)
1843 return -EINVAL;
1844
1845 ret = set_fan_status(toshiba, state);
1846 if (ret)
1847 return ret;
1848
1849 return count;
1850 }
1851
fan_show(struct device * dev,struct device_attribute * attr,char * buf)1852 static ssize_t fan_show(struct device *dev,
1853 struct device_attribute *attr, char *buf)
1854 {
1855 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1856 u32 value;
1857 int ret;
1858
1859 ret = get_fan_status(toshiba, &value);
1860 if (ret)
1861 return ret;
1862
1863 return sprintf(buf, "%d\n", value);
1864 }
1865 static DEVICE_ATTR_RW(fan);
1866
kbd_backlight_mode_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1867 static ssize_t kbd_backlight_mode_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 mode;
1873 int ret;
1874
1875
1876 ret = kstrtoint(buf, 0, &mode);
1877 if (ret)
1878 return ret;
1879
1880 /* Check for supported modes depending on keyboard backlight type */
1881 if (toshiba->kbd_type == 1) {
1882 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1883 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1884 return -EINVAL;
1885 } else if (toshiba->kbd_type == 2) {
1886 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1887 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1888 mode != SCI_KBD_MODE_OFF)
1889 return -EINVAL;
1890 }
1891
1892 /*
1893 * Set the Keyboard Backlight Mode where:
1894 * Auto - KBD backlight turns off automatically in given time
1895 * FN-Z - KBD backlight "toggles" when hotkey pressed
1896 * ON - KBD backlight is always on
1897 * OFF - KBD backlight is always off
1898 */
1899
1900 /* Only make a change if the actual mode has changed */
1901 if (toshiba->kbd_mode != mode) {
1902 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1903 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1904
1905 /* OR the "base time" to the actual method format */
1906 if (toshiba->kbd_type == 1) {
1907 /* Type 1 requires the current mode */
1908 time |= toshiba->kbd_mode;
1909 } else if (toshiba->kbd_type == 2) {
1910 /* Type 2 requires the desired mode */
1911 time |= mode;
1912 }
1913
1914 ret = toshiba_kbd_illum_status_set(toshiba, time);
1915 if (ret)
1916 return ret;
1917
1918 toshiba->kbd_mode = mode;
1919 toshiba_acpi->kbd_mode = mode;
1920
1921 /*
1922 * Some laptop models with the second generation backlit
1923 * keyboard (type 2) do not generate the keyboard backlight
1924 * changed event (0x92), and thus, the driver will never update
1925 * the sysfs entries.
1926 *
1927 * The event is generated right when changing the keyboard
1928 * backlight mode and the *notify function will set the
1929 * kbd_event_generated to true.
1930 *
1931 * In case the event is not generated, schedule the keyboard
1932 * backlight work to update the sysfs entries and emulate the
1933 * event via genetlink.
1934 */
1935 if (toshiba->kbd_type == 2 &&
1936 !toshiba->kbd_event_generated)
1937 schedule_work(&kbd_bl_work);
1938 }
1939
1940 return count;
1941 }
1942
kbd_backlight_mode_show(struct device * dev,struct device_attribute * attr,char * buf)1943 static ssize_t kbd_backlight_mode_show(struct device *dev,
1944 struct device_attribute *attr,
1945 char *buf)
1946 {
1947 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1948 u32 time;
1949
1950 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1951 return -EIO;
1952
1953 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1954 }
1955 static DEVICE_ATTR_RW(kbd_backlight_mode);
1956
kbd_type_show(struct device * dev,struct device_attribute * attr,char * buf)1957 static ssize_t kbd_type_show(struct device *dev,
1958 struct device_attribute *attr, char *buf)
1959 {
1960 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1961
1962 return sprintf(buf, "%d\n", toshiba->kbd_type);
1963 }
1964 static DEVICE_ATTR_RO(kbd_type);
1965
available_kbd_modes_show(struct device * dev,struct device_attribute * attr,char * buf)1966 static ssize_t available_kbd_modes_show(struct device *dev,
1967 struct device_attribute *attr,
1968 char *buf)
1969 {
1970 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1971
1972 if (toshiba->kbd_type == 1)
1973 return sprintf(buf, "0x%x 0x%x\n",
1974 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1975
1976 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1977 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1978 }
1979 static DEVICE_ATTR_RO(available_kbd_modes);
1980
kbd_backlight_timeout_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1981 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1982 struct device_attribute *attr,
1983 const char *buf, size_t count)
1984 {
1985 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1986 int time;
1987 int ret;
1988
1989 ret = kstrtoint(buf, 0, &time);
1990 if (ret)
1991 return ret;
1992
1993 /* Check for supported values depending on kbd_type */
1994 if (toshiba->kbd_type == 1) {
1995 if (time < 0 || time > 60)
1996 return -EINVAL;
1997 } else if (toshiba->kbd_type == 2) {
1998 if (time < 1 || time > 60)
1999 return -EINVAL;
2000 }
2001
2002 /* Set the Keyboard Backlight Timeout */
2003
2004 /* Only make a change if the actual timeout has changed */
2005 if (toshiba->kbd_time != time) {
2006 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
2007 time = time << HCI_MISC_SHIFT;
2008 /* OR the "base time" to the actual method format */
2009 if (toshiba->kbd_type == 1)
2010 time |= SCI_KBD_MODE_FNZ;
2011 else if (toshiba->kbd_type == 2)
2012 time |= SCI_KBD_MODE_AUTO;
2013
2014 ret = toshiba_kbd_illum_status_set(toshiba, time);
2015 if (ret)
2016 return ret;
2017
2018 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
2019 }
2020
2021 return count;
2022 }
2023
kbd_backlight_timeout_show(struct device * dev,struct device_attribute * attr,char * buf)2024 static ssize_t kbd_backlight_timeout_show(struct device *dev,
2025 struct device_attribute *attr,
2026 char *buf)
2027 {
2028 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2029 u32 time;
2030
2031 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
2032 return -EIO;
2033
2034 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
2035 }
2036 static DEVICE_ATTR_RW(kbd_backlight_timeout);
2037
touchpad_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2038 static ssize_t touchpad_store(struct device *dev,
2039 struct device_attribute *attr,
2040 const char *buf, size_t count)
2041 {
2042 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2043 int state;
2044 int ret;
2045
2046 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
2047 ret = kstrtoint(buf, 0, &state);
2048 if (ret)
2049 return ret;
2050 if (state != 0 && state != 1)
2051 return -EINVAL;
2052
2053 ret = toshiba_touchpad_set(toshiba, state);
2054 if (ret)
2055 return ret;
2056
2057 return count;
2058 }
2059
touchpad_show(struct device * dev,struct device_attribute * attr,char * buf)2060 static ssize_t touchpad_show(struct device *dev,
2061 struct device_attribute *attr, char *buf)
2062 {
2063 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2064 u32 state;
2065 int ret;
2066
2067 ret = toshiba_touchpad_get(toshiba, &state);
2068 if (ret < 0)
2069 return ret;
2070
2071 return sprintf(buf, "%i\n", state);
2072 }
2073 static DEVICE_ATTR_RW(touchpad);
2074
usb_sleep_charge_show(struct device * dev,struct device_attribute * attr,char * buf)2075 static ssize_t usb_sleep_charge_show(struct device *dev,
2076 struct device_attribute *attr, char *buf)
2077 {
2078 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2079 u32 mode;
2080 int ret;
2081
2082 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2083 if (ret < 0)
2084 return ret;
2085
2086 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2087 }
2088
usb_sleep_charge_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2089 static ssize_t usb_sleep_charge_store(struct device *dev,
2090 struct device_attribute *attr,
2091 const char *buf, size_t count)
2092 {
2093 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2094 int state;
2095 u32 mode;
2096 int ret;
2097
2098 ret = kstrtoint(buf, 0, &state);
2099 if (ret)
2100 return ret;
2101 /*
2102 * Check for supported values, where:
2103 * 0 - Disabled
2104 * 1 - Alternate (Non USB conformant devices that require more power)
2105 * 2 - Auto (USB conformant devices)
2106 * 3 - Typical
2107 */
2108 if (state != 0 && state != 1 && state != 2 && state != 3)
2109 return -EINVAL;
2110
2111 /* Set the USB charging mode to internal value */
2112 mode = toshiba->usbsc_mode_base;
2113 if (state == 0)
2114 mode |= SCI_USB_CHARGE_DISABLED;
2115 else if (state == 1)
2116 mode |= SCI_USB_CHARGE_ALTERNATE;
2117 else if (state == 2)
2118 mode |= SCI_USB_CHARGE_AUTO;
2119 else if (state == 3)
2120 mode |= SCI_USB_CHARGE_TYPICAL;
2121
2122 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2123 if (ret)
2124 return ret;
2125
2126 return count;
2127 }
2128 static DEVICE_ATTR_RW(usb_sleep_charge);
2129
sleep_functions_on_battery_show(struct device * dev,struct device_attribute * attr,char * buf)2130 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2131 struct device_attribute *attr,
2132 char *buf)
2133 {
2134 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2135 int bat_lvl, status;
2136 u32 state;
2137 int ret;
2138 int tmp;
2139
2140 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2141 if (ret < 0)
2142 return ret;
2143
2144 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2145 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2146 status = (tmp == 0x4) ? 1 : 0;
2147 /* Determine the battery level set */
2148 bat_lvl = state >> HCI_MISC_SHIFT;
2149
2150 return sprintf(buf, "%d %d\n", status, bat_lvl);
2151 }
2152
sleep_functions_on_battery_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2153 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2154 struct device_attribute *attr,
2155 const char *buf, size_t count)
2156 {
2157 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2158 u32 status;
2159 int value;
2160 int ret;
2161 int tmp;
2162
2163 ret = kstrtoint(buf, 0, &value);
2164 if (ret)
2165 return ret;
2166
2167 /*
2168 * Set the status of the function:
2169 * 0 - Disabled
2170 * 1-100 - Enabled
2171 */
2172 if (value < 0 || value > 100)
2173 return -EINVAL;
2174
2175 if (value == 0) {
2176 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2177 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2178 } else {
2179 tmp = value << HCI_MISC_SHIFT;
2180 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2181 }
2182 ret = toshiba_sleep_functions_status_set(toshiba, status);
2183 if (ret < 0)
2184 return ret;
2185
2186 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2187
2188 return count;
2189 }
2190 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2191
usb_rapid_charge_show(struct device * dev,struct device_attribute * attr,char * buf)2192 static ssize_t usb_rapid_charge_show(struct device *dev,
2193 struct device_attribute *attr, char *buf)
2194 {
2195 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2196 u32 state;
2197 int ret;
2198
2199 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2200 if (ret < 0)
2201 return ret;
2202
2203 return sprintf(buf, "%d\n", state);
2204 }
2205
usb_rapid_charge_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2206 static ssize_t usb_rapid_charge_store(struct device *dev,
2207 struct device_attribute *attr,
2208 const char *buf, size_t count)
2209 {
2210 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2211 int state;
2212 int ret;
2213
2214 ret = kstrtoint(buf, 0, &state);
2215 if (ret)
2216 return ret;
2217 if (state != 0 && state != 1)
2218 return -EINVAL;
2219
2220 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2221 if (ret)
2222 return ret;
2223
2224 return count;
2225 }
2226 static DEVICE_ATTR_RW(usb_rapid_charge);
2227
usb_sleep_music_show(struct device * dev,struct device_attribute * attr,char * buf)2228 static ssize_t usb_sleep_music_show(struct device *dev,
2229 struct device_attribute *attr, char *buf)
2230 {
2231 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2232 u32 state;
2233 int ret;
2234
2235 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2236 if (ret < 0)
2237 return ret;
2238
2239 return sprintf(buf, "%d\n", state);
2240 }
2241
usb_sleep_music_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2242 static ssize_t usb_sleep_music_store(struct device *dev,
2243 struct device_attribute *attr,
2244 const char *buf, size_t count)
2245 {
2246 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2247 int state;
2248 int ret;
2249
2250 ret = kstrtoint(buf, 0, &state);
2251 if (ret)
2252 return ret;
2253 if (state != 0 && state != 1)
2254 return -EINVAL;
2255
2256 ret = toshiba_usb_sleep_music_set(toshiba, state);
2257 if (ret)
2258 return ret;
2259
2260 return count;
2261 }
2262 static DEVICE_ATTR_RW(usb_sleep_music);
2263
kbd_function_keys_show(struct device * dev,struct device_attribute * attr,char * buf)2264 static ssize_t kbd_function_keys_show(struct device *dev,
2265 struct device_attribute *attr, char *buf)
2266 {
2267 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2268 int mode;
2269 int ret;
2270
2271 ret = toshiba_function_keys_get(toshiba, &mode);
2272 if (ret < 0)
2273 return ret;
2274
2275 return sprintf(buf, "%d\n", mode);
2276 }
2277
kbd_function_keys_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2278 static ssize_t kbd_function_keys_store(struct device *dev,
2279 struct device_attribute *attr,
2280 const char *buf, size_t count)
2281 {
2282 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2283 int mode;
2284 int ret;
2285
2286 ret = kstrtoint(buf, 0, &mode);
2287 if (ret)
2288 return ret;
2289 /*
2290 * Check for the function keys mode where:
2291 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2292 * 1 - Special functions (Opposite of the above setting)
2293 */
2294 if (mode != 0 && mode != 1)
2295 return -EINVAL;
2296
2297 ret = toshiba_function_keys_set(toshiba, mode);
2298 if (ret)
2299 return ret;
2300
2301 pr_info("Reboot for changes to KBD Function Keys to take effect");
2302
2303 return count;
2304 }
2305 static DEVICE_ATTR_RW(kbd_function_keys);
2306
panel_power_on_show(struct device * dev,struct device_attribute * attr,char * buf)2307 static ssize_t panel_power_on_show(struct device *dev,
2308 struct device_attribute *attr, char *buf)
2309 {
2310 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2311 u32 state;
2312 int ret;
2313
2314 ret = toshiba_panel_power_on_get(toshiba, &state);
2315 if (ret < 0)
2316 return ret;
2317
2318 return sprintf(buf, "%d\n", state);
2319 }
2320
panel_power_on_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2321 static ssize_t panel_power_on_store(struct device *dev,
2322 struct device_attribute *attr,
2323 const char *buf, size_t count)
2324 {
2325 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2326 int state;
2327 int ret;
2328
2329 ret = kstrtoint(buf, 0, &state);
2330 if (ret)
2331 return ret;
2332 if (state != 0 && state != 1)
2333 return -EINVAL;
2334
2335 ret = toshiba_panel_power_on_set(toshiba, state);
2336 if (ret)
2337 return ret;
2338
2339 pr_info("Reboot for changes to Panel Power ON to take effect");
2340
2341 return count;
2342 }
2343 static DEVICE_ATTR_RW(panel_power_on);
2344
usb_three_show(struct device * dev,struct device_attribute * attr,char * buf)2345 static ssize_t usb_three_show(struct device *dev,
2346 struct device_attribute *attr, char *buf)
2347 {
2348 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2349 u32 state;
2350 int ret;
2351
2352 ret = toshiba_usb_three_get(toshiba, &state);
2353 if (ret < 0)
2354 return ret;
2355
2356 return sprintf(buf, "%d\n", state);
2357 }
2358
usb_three_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2359 static ssize_t usb_three_store(struct device *dev,
2360 struct device_attribute *attr,
2361 const char *buf, size_t count)
2362 {
2363 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2364 int state;
2365 int ret;
2366
2367 ret = kstrtoint(buf, 0, &state);
2368 if (ret)
2369 return ret;
2370 /*
2371 * Check for USB 3 mode where:
2372 * 0 - Disabled (Acts like a USB 2 port, saving power)
2373 * 1 - Enabled
2374 */
2375 if (state != 0 && state != 1)
2376 return -EINVAL;
2377
2378 ret = toshiba_usb_three_set(toshiba, state);
2379 if (ret)
2380 return ret;
2381
2382 pr_info("Reboot for changes to USB 3 to take effect");
2383
2384 return count;
2385 }
2386 static DEVICE_ATTR_RW(usb_three);
2387
cooling_method_show(struct device * dev,struct device_attribute * attr,char * buf)2388 static ssize_t cooling_method_show(struct device *dev,
2389 struct device_attribute *attr, char *buf)
2390 {
2391 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2392 int state;
2393 int ret;
2394
2395 ret = toshiba_cooling_method_get(toshiba, &state);
2396 if (ret < 0)
2397 return ret;
2398
2399 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2400 }
2401
cooling_method_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2402 static ssize_t cooling_method_store(struct device *dev,
2403 struct device_attribute *attr,
2404 const char *buf, size_t count)
2405 {
2406 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2407 int state;
2408 int ret;
2409
2410 ret = kstrtoint(buf, 0, &state);
2411 if (ret)
2412 return ret;
2413
2414 /*
2415 * Check for supported values
2416 * Depending on the laptop model, some only support these two:
2417 * 0 - Maximum Performance
2418 * 1 - Battery Optimized
2419 *
2420 * While some others support all three methods:
2421 * 0 - Maximum Performance
2422 * 1 - Performance
2423 * 2 - Battery Optimized
2424 */
2425 if (state < 0 || state > toshiba->max_cooling_method)
2426 return -EINVAL;
2427
2428 ret = toshiba_cooling_method_set(toshiba, state);
2429 if (ret)
2430 return ret;
2431
2432 return count;
2433 }
2434 static DEVICE_ATTR_RW(cooling_method);
2435
2436 static struct attribute *toshiba_attributes[] = {
2437 &dev_attr_version.attr,
2438 &dev_attr_fan.attr,
2439 &dev_attr_kbd_backlight_mode.attr,
2440 &dev_attr_kbd_type.attr,
2441 &dev_attr_available_kbd_modes.attr,
2442 &dev_attr_kbd_backlight_timeout.attr,
2443 &dev_attr_touchpad.attr,
2444 &dev_attr_usb_sleep_charge.attr,
2445 &dev_attr_sleep_functions_on_battery.attr,
2446 &dev_attr_usb_rapid_charge.attr,
2447 &dev_attr_usb_sleep_music.attr,
2448 &dev_attr_kbd_function_keys.attr,
2449 &dev_attr_panel_power_on.attr,
2450 &dev_attr_usb_three.attr,
2451 &dev_attr_cooling_method.attr,
2452 NULL,
2453 };
2454
toshiba_sysfs_is_visible(struct kobject * kobj,struct attribute * attr,int idx)2455 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2456 struct attribute *attr, int idx)
2457 {
2458 struct device *dev = kobj_to_dev(kobj);
2459 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2460 bool exists = true;
2461
2462 if (attr == &dev_attr_fan.attr)
2463 exists = (drv->fan_supported) ? true : false;
2464 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2465 exists = (drv->kbd_illum_supported) ? true : false;
2466 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2467 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2468 else if (attr == &dev_attr_touchpad.attr)
2469 exists = (drv->touchpad_supported) ? true : false;
2470 else if (attr == &dev_attr_usb_sleep_charge.attr)
2471 exists = (drv->usb_sleep_charge_supported) ? true : false;
2472 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2473 exists = (drv->usb_sleep_charge_supported) ? true : false;
2474 else if (attr == &dev_attr_usb_rapid_charge.attr)
2475 exists = (drv->usb_rapid_charge_supported) ? true : false;
2476 else if (attr == &dev_attr_usb_sleep_music.attr)
2477 exists = (drv->usb_sleep_music_supported) ? true : false;
2478 else if (attr == &dev_attr_kbd_function_keys.attr)
2479 exists = (drv->kbd_function_keys_supported) ? true : false;
2480 else if (attr == &dev_attr_panel_power_on.attr)
2481 exists = (drv->panel_power_on_supported) ? true : false;
2482 else if (attr == &dev_attr_usb_three.attr)
2483 exists = (drv->usb_three_supported) ? true : false;
2484 else if (attr == &dev_attr_cooling_method.attr)
2485 exists = (drv->cooling_method_supported) ? true : false;
2486
2487 return exists ? attr->mode : 0;
2488 }
2489
2490 static const struct attribute_group toshiba_attr_group = {
2491 .is_visible = toshiba_sysfs_is_visible,
2492 .attrs = toshiba_attributes,
2493 };
2494
toshiba_acpi_kbd_bl_work(struct work_struct * work)2495 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2496 {
2497 /* Update the sysfs entries */
2498 if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2499 &toshiba_attr_group))
2500 pr_err("Unable to update sysfs entries\n");
2501
2502 /* Notify LED subsystem about keyboard backlight change */
2503 if (toshiba_acpi->kbd_type == 2 &&
2504 toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2505 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2506 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2507 LED_FULL : LED_OFF);
2508
2509 /* Emulate the keyboard backlight event */
2510 acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2511 dev_name(&toshiba_acpi->acpi_dev->dev),
2512 0x92, 0);
2513 }
2514
2515 /*
2516 * IIO device
2517 */
2518
2519 enum toshiba_iio_accel_chan {
2520 AXIS_X,
2521 AXIS_Y,
2522 AXIS_Z
2523 };
2524
toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)2525 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2526 {
2527 u32 xyval, zval;
2528 int ret;
2529
2530 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2531 if (ret < 0)
2532 return ret;
2533
2534 switch (chan) {
2535 case AXIS_X:
2536 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2537 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2538 case AXIS_Y:
2539 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2540 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2541 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2542 case AXIS_Z:
2543 return zval & HCI_ACCEL_DIRECTION_MASK ?
2544 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2545 }
2546
2547 return ret;
2548 }
2549
toshiba_iio_accel_read_raw(struct iio_dev * indio_dev,struct iio_chan_spec const * chan,int * val,int * val2,long mask)2550 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2551 struct iio_chan_spec const *chan,
2552 int *val, int *val2, long mask)
2553 {
2554 int ret;
2555
2556 switch (mask) {
2557 case IIO_CHAN_INFO_RAW:
2558 ret = toshiba_iio_accel_get_axis(chan->channel);
2559 if (ret == -EIO || ret == -ENODEV)
2560 return ret;
2561
2562 *val = ret;
2563
2564 return IIO_VAL_INT;
2565 }
2566
2567 return -EINVAL;
2568 }
2569
2570 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2571 .type = IIO_ACCEL, \
2572 .modified = 1, \
2573 .channel = chan, \
2574 .channel2 = IIO_MOD_##axis, \
2575 .output = 1, \
2576 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2577 }
2578
2579 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2580 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2581 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2582 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2583 };
2584
2585 static const struct iio_info toshiba_iio_accel_info = {
2586 .read_raw = &toshiba_iio_accel_read_raw,
2587 };
2588
2589 /*
2590 * Misc device
2591 */
toshiba_acpi_smm_bridge(SMMRegisters * regs)2592 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2593 {
2594 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2595 regs->edx, regs->esi, regs->edi };
2596 u32 out[TCI_WORDS];
2597 acpi_status status;
2598
2599 status = tci_raw(toshiba_acpi, in, out);
2600 if (ACPI_FAILURE(status)) {
2601 pr_err("ACPI call to query SMM registers failed\n");
2602 return -EIO;
2603 }
2604
2605 /* Fillout the SMM struct with the TCI call results */
2606 regs->eax = out[0];
2607 regs->ebx = out[1];
2608 regs->ecx = out[2];
2609 regs->edx = out[3];
2610 regs->esi = out[4];
2611 regs->edi = out[5];
2612
2613 return 0;
2614 }
2615
toshiba_acpi_ioctl(struct file * fp,unsigned int cmd,unsigned long arg)2616 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2617 unsigned long arg)
2618 {
2619 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2620 SMMRegisters regs;
2621 int ret;
2622
2623 if (!argp)
2624 return -EINVAL;
2625
2626 switch (cmd) {
2627 case TOSH_SMM:
2628 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2629 return -EFAULT;
2630 ret = toshiba_acpi_smm_bridge(®s);
2631 if (ret)
2632 return ret;
2633 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2634 return -EFAULT;
2635 break;
2636 case TOSHIBA_ACPI_SCI:
2637 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2638 return -EFAULT;
2639 /* Ensure we are being called with a SCI_{GET, SET} register */
2640 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2641 return -EINVAL;
2642 if (!sci_open(toshiba_acpi))
2643 return -EIO;
2644 ret = toshiba_acpi_smm_bridge(®s);
2645 sci_close(toshiba_acpi);
2646 if (ret)
2647 return ret;
2648 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2649 return -EFAULT;
2650 break;
2651 default:
2652 return -EINVAL;
2653 }
2654
2655 return 0;
2656 }
2657
2658 static const struct file_operations toshiba_acpi_fops = {
2659 .owner = THIS_MODULE,
2660 .unlocked_ioctl = toshiba_acpi_ioctl,
2661 .llseek = noop_llseek,
2662 };
2663
2664 /*
2665 * WWAN RFKill handlers
2666 */
toshiba_acpi_wwan_set_block(void * data,bool blocked)2667 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2668 {
2669 struct toshiba_acpi_dev *dev = data;
2670 int ret;
2671
2672 ret = toshiba_wireless_status(dev);
2673 if (ret)
2674 return ret;
2675
2676 if (!dev->killswitch)
2677 return 0;
2678
2679 return toshiba_wwan_set(dev, !blocked);
2680 }
2681
toshiba_acpi_wwan_poll(struct rfkill * rfkill,void * data)2682 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2683 {
2684 struct toshiba_acpi_dev *dev = data;
2685
2686 if (toshiba_wireless_status(dev))
2687 return;
2688
2689 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2690 }
2691
2692 static const struct rfkill_ops wwan_rfk_ops = {
2693 .set_block = toshiba_acpi_wwan_set_block,
2694 .poll = toshiba_acpi_wwan_poll,
2695 };
2696
toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev * dev)2697 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2698 {
2699 int ret = toshiba_wireless_status(dev);
2700
2701 if (ret)
2702 return ret;
2703
2704 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2705 &dev->acpi_dev->dev,
2706 RFKILL_TYPE_WWAN,
2707 &wwan_rfk_ops,
2708 dev);
2709 if (!dev->wwan_rfk) {
2710 pr_err("Unable to allocate WWAN rfkill device\n");
2711 return -ENOMEM;
2712 }
2713
2714 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2715
2716 ret = rfkill_register(dev->wwan_rfk);
2717 if (ret) {
2718 pr_err("Unable to register WWAN rfkill device\n");
2719 rfkill_destroy(dev->wwan_rfk);
2720 }
2721
2722 return ret;
2723 }
2724
2725 /*
2726 * Hotkeys
2727 */
toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev * dev)2728 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2729 {
2730 acpi_status status;
2731 u32 result;
2732
2733 status = acpi_evaluate_object(dev->acpi_dev->handle,
2734 "ENAB", NULL, NULL);
2735 if (ACPI_FAILURE(status))
2736 return -ENODEV;
2737
2738 /*
2739 * Enable quickstart buttons if supported.
2740 *
2741 * Enable the "Special Functions" mode only if they are
2742 * supported and if they are activated.
2743 */
2744 if (hci_hotkey_quickstart)
2745 result = hci_write(dev, HCI_HOTKEY_EVENT,
2746 HCI_HOTKEY_ENABLE_QUICKSTART);
2747 else if (dev->kbd_function_keys_supported && dev->special_functions)
2748 result = hci_write(dev, HCI_HOTKEY_EVENT,
2749 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2750 else
2751 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2752
2753 if (result == TOS_FAILURE)
2754 return -EIO;
2755 else if (result == TOS_NOT_SUPPORTED)
2756 return -ENODEV;
2757
2758 return 0;
2759 }
2760
toshiba_acpi_i8042_filter(unsigned char data,unsigned char str,struct serio * port)2761 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2762 struct serio *port)
2763 {
2764 if (str & I8042_STR_AUXDATA)
2765 return false;
2766
2767 if (unlikely(data == 0xe0))
2768 return false;
2769
2770 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2771 schedule_work(&toshiba_acpi->hotkey_work);
2772 return true;
2773 }
2774
2775 return false;
2776 }
2777
toshiba_acpi_hotkey_work(struct work_struct * work)2778 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2779 {
2780 acpi_handle ec_handle = ec_get_handle();
2781 acpi_status status;
2782
2783 if (!ec_handle)
2784 return;
2785
2786 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2787 if (ACPI_FAILURE(status))
2788 pr_err("ACPI NTFY method execution failed\n");
2789 }
2790
2791 /*
2792 * Returns hotkey scancode, or < 0 on failure.
2793 */
toshiba_acpi_query_hotkey(struct toshiba_acpi_dev * dev)2794 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2795 {
2796 unsigned long long value;
2797 acpi_status status;
2798
2799 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2800 NULL, &value);
2801 if (ACPI_FAILURE(status)) {
2802 pr_err("ACPI INFO method execution failed\n");
2803 return -EIO;
2804 }
2805
2806 return value;
2807 }
2808
toshiba_acpi_report_hotkey(struct toshiba_acpi_dev * dev,int scancode)2809 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2810 int scancode)
2811 {
2812 if (scancode == 0x100)
2813 return;
2814
2815 /* Act on key press; ignore key release */
2816 if (scancode & 0x80)
2817 return;
2818
2819 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2820 pr_info("Unknown key %x\n", scancode);
2821 }
2822
toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev * dev)2823 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2824 {
2825 if (dev->info_supported) {
2826 int scancode = toshiba_acpi_query_hotkey(dev);
2827
2828 if (scancode < 0) {
2829 pr_err("Failed to query hotkey event\n");
2830 } else if (scancode != 0) {
2831 toshiba_acpi_report_hotkey(dev, scancode);
2832 dev->key_event_valid = 1;
2833 dev->last_key_event = scancode;
2834 }
2835 } else if (dev->system_event_supported) {
2836 u32 result;
2837 u32 value;
2838 int retries = 3;
2839
2840 do {
2841 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2842 switch (result) {
2843 case TOS_SUCCESS:
2844 toshiba_acpi_report_hotkey(dev, (int)value);
2845 dev->key_event_valid = 1;
2846 dev->last_key_event = value;
2847 break;
2848 case TOS_NOT_SUPPORTED:
2849 /*
2850 * This is a workaround for an unresolved
2851 * issue on some machines where system events
2852 * sporadically become disabled.
2853 */
2854 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2855 if (result == TOS_SUCCESS)
2856 pr_notice("Re-enabled hotkeys\n");
2857 fallthrough;
2858 default:
2859 retries--;
2860 break;
2861 }
2862 } while (retries && result != TOS_FIFO_EMPTY);
2863 }
2864 }
2865
toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev * dev)2866 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2867 {
2868 const struct key_entry *keymap = toshiba_acpi_keymap;
2869 acpi_handle ec_handle;
2870 int error;
2871
2872 if (disable_hotkeys) {
2873 pr_info("Hotkeys disabled by module parameter\n");
2874 return 0;
2875 }
2876
2877 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2878 pr_info("WMI event detected, hotkeys will not be monitored\n");
2879 return 0;
2880 }
2881
2882 error = toshiba_acpi_enable_hotkeys(dev);
2883 if (error)
2884 return error;
2885
2886 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2887 pr_notice("Unable to query Hotkey Event Type\n");
2888
2889 dev->hotkey_dev = input_allocate_device();
2890 if (!dev->hotkey_dev)
2891 return -ENOMEM;
2892
2893 dev->hotkey_dev->name = "Toshiba input device";
2894 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2895 dev->hotkey_dev->id.bustype = BUS_HOST;
2896 dev->hotkey_dev->dev.parent = &dev->acpi_dev->dev;
2897
2898 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2899 !dev->kbd_function_keys_supported)
2900 keymap = toshiba_acpi_keymap;
2901 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2902 dev->kbd_function_keys_supported)
2903 keymap = toshiba_acpi_alt_keymap;
2904 else
2905 pr_info("Unknown event type received %x\n",
2906 dev->hotkey_event_type);
2907 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2908 if (error)
2909 goto err_free_dev;
2910
2911 /*
2912 * For some machines the SCI responsible for providing hotkey
2913 * notification doesn't fire. We can trigger the notification
2914 * whenever the Fn key is pressed using the NTFY method, if
2915 * supported, so if it's present set up an i8042 key filter
2916 * for this purpose.
2917 */
2918 ec_handle = ec_get_handle();
2919 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2920 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2921
2922 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2923 if (error) {
2924 pr_err("Error installing key filter\n");
2925 goto err_free_dev;
2926 }
2927
2928 dev->ntfy_supported = 1;
2929 }
2930
2931 /*
2932 * Determine hotkey query interface. Prefer using the INFO
2933 * method when it is available.
2934 */
2935 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2936 dev->info_supported = 1;
2937 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2938 dev->system_event_supported = 1;
2939
2940 if (!dev->info_supported && !dev->system_event_supported) {
2941 pr_warn("No hotkey query interface found\n");
2942 error = -EINVAL;
2943 goto err_remove_filter;
2944 }
2945
2946 error = input_register_device(dev->hotkey_dev);
2947 if (error) {
2948 pr_info("Unable to register input device\n");
2949 goto err_remove_filter;
2950 }
2951
2952 return 0;
2953
2954 err_remove_filter:
2955 if (dev->ntfy_supported)
2956 i8042_remove_filter(toshiba_acpi_i8042_filter);
2957 err_free_dev:
2958 input_free_device(dev->hotkey_dev);
2959 dev->hotkey_dev = NULL;
2960 return error;
2961 }
2962
toshiba_acpi_setup_backlight(struct toshiba_acpi_dev * dev)2963 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2964 {
2965 struct backlight_properties props;
2966 int brightness;
2967 int ret;
2968
2969 /*
2970 * Some machines don't support the backlight methods at all, and
2971 * others support it read-only. Either of these is pretty useless,
2972 * so only register the backlight device if the backlight method
2973 * supports both reads and writes.
2974 */
2975 brightness = __get_lcd_brightness(dev);
2976 if (brightness < 0)
2977 return 0;
2978 /*
2979 * If transflective backlight is supported and the brightness is zero
2980 * (lowest brightness level), the set_lcd_brightness function will
2981 * activate the transflective backlight, making the LCD appear to be
2982 * turned off, simply increment the brightness level to avoid that.
2983 */
2984 if (dev->tr_backlight_supported && brightness == 0)
2985 brightness++;
2986 ret = set_lcd_brightness(dev, brightness);
2987 if (ret) {
2988 pr_debug("Backlight method is read-only, disabling backlight support\n");
2989 return 0;
2990 }
2991
2992 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2993 return 0;
2994
2995 memset(&props, 0, sizeof(props));
2996 props.type = BACKLIGHT_PLATFORM;
2997 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2998
2999 /* Adding an extra level and having 0 change to transflective mode */
3000 if (dev->tr_backlight_supported)
3001 props.max_brightness++;
3002
3003 dev->backlight_dev = backlight_device_register("toshiba",
3004 &dev->acpi_dev->dev,
3005 dev,
3006 &toshiba_backlight_data,
3007 &props);
3008 if (IS_ERR(dev->backlight_dev)) {
3009 ret = PTR_ERR(dev->backlight_dev);
3010 pr_err("Could not register toshiba backlight device\n");
3011 dev->backlight_dev = NULL;
3012 return ret;
3013 }
3014
3015 dev->backlight_dev->props.brightness = brightness;
3016 return 0;
3017 }
3018
3019 /* HWMON support for fan */
3020 #if IS_ENABLED(CONFIG_HWMON)
toshiba_acpi_hwmon_is_visible(const void * drvdata,enum hwmon_sensor_types type,u32 attr,int channel)3021 static umode_t toshiba_acpi_hwmon_is_visible(const void *drvdata,
3022 enum hwmon_sensor_types type,
3023 u32 attr, int channel)
3024 {
3025 return 0444;
3026 }
3027
toshiba_acpi_hwmon_read(struct device * dev,enum hwmon_sensor_types type,u32 attr,int channel,long * val)3028 static int toshiba_acpi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
3029 u32 attr, int channel, long *val)
3030 {
3031 /*
3032 * There is only a single channel and single attribute (for the
3033 * fan) at this point.
3034 * This can be replaced with more advanced logic in the future,
3035 * should the need arise.
3036 */
3037 if (type == hwmon_fan && channel == 0 && attr == hwmon_fan_input) {
3038 u32 value;
3039 int ret;
3040
3041 ret = get_fan_rpm(toshiba_acpi, &value);
3042 if (ret)
3043 return ret;
3044
3045 *val = value;
3046 return 0;
3047 }
3048 return -EOPNOTSUPP;
3049 }
3050
3051 static const struct hwmon_channel_info * const toshiba_acpi_hwmon_info[] = {
3052 HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT),
3053 NULL
3054 };
3055
3056 static const struct hwmon_ops toshiba_acpi_hwmon_ops = {
3057 .is_visible = toshiba_acpi_hwmon_is_visible,
3058 .read = toshiba_acpi_hwmon_read,
3059 };
3060
3061 static const struct hwmon_chip_info toshiba_acpi_hwmon_chip_info = {
3062 .ops = &toshiba_acpi_hwmon_ops,
3063 .info = toshiba_acpi_hwmon_info,
3064 };
3065 #endif
3066
3067 /* ACPI battery hooking */
charge_control_end_threshold_show(struct device * device,struct device_attribute * attr,char * buf)3068 static ssize_t charge_control_end_threshold_show(struct device *device,
3069 struct device_attribute *attr,
3070 char *buf)
3071 {
3072 u32 state;
3073 int status;
3074
3075 if (toshiba_acpi == NULL) {
3076 pr_err("Toshiba ACPI object invalid\n");
3077 return -ENODEV;
3078 }
3079
3080 status = toshiba_battery_charge_mode_get(toshiba_acpi, &state);
3081
3082 if (status != 0)
3083 return status;
3084
3085 if (state == 1)
3086 return sprintf(buf, "80\n");
3087 else
3088 return sprintf(buf, "100\n");
3089 }
3090
charge_control_end_threshold_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)3091 static ssize_t charge_control_end_threshold_store(struct device *dev,
3092 struct device_attribute *attr,
3093 const char *buf,
3094 size_t count)
3095 {
3096 u32 value;
3097 int rval;
3098
3099 if (toshiba_acpi == NULL) {
3100 pr_err("Toshiba ACPI object invalid\n");
3101 return -ENODEV;
3102 }
3103
3104 rval = kstrtou32(buf, 10, &value);
3105 if (rval)
3106 return rval;
3107
3108 if (value < 1 || value > 100)
3109 return -EINVAL;
3110 rval = toshiba_battery_charge_mode_set(toshiba_acpi,
3111 (value < 90) ? 1 : 0);
3112 if (rval < 0)
3113 return rval;
3114 else
3115 return count;
3116 }
3117
3118 static DEVICE_ATTR_RW(charge_control_end_threshold);
3119
3120 static struct attribute *toshiba_acpi_battery_attrs[] = {
3121 &dev_attr_charge_control_end_threshold.attr,
3122 NULL,
3123 };
3124
3125 ATTRIBUTE_GROUPS(toshiba_acpi_battery);
3126
toshiba_acpi_battery_add(struct power_supply * battery,struct acpi_battery_hook * hook)3127 static int toshiba_acpi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
3128 {
3129 if (toshiba_acpi == NULL) {
3130 pr_err("Init order issue\n");
3131 return -ENODEV;
3132 }
3133 if (!toshiba_acpi->battery_charge_mode_supported)
3134 return -ENODEV;
3135 if (device_add_groups(&battery->dev, toshiba_acpi_battery_groups))
3136 return -ENODEV;
3137 return 0;
3138 }
3139
toshiba_acpi_battery_remove(struct power_supply * battery,struct acpi_battery_hook * hook)3140 static int toshiba_acpi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
3141 {
3142 device_remove_groups(&battery->dev, toshiba_acpi_battery_groups);
3143 return 0;
3144 }
3145
3146 static struct acpi_battery_hook battery_hook = {
3147 .add_battery = toshiba_acpi_battery_add,
3148 .remove_battery = toshiba_acpi_battery_remove,
3149 .name = "Toshiba Battery Extension",
3150 };
3151
print_supported_features(struct toshiba_acpi_dev * dev)3152 static void print_supported_features(struct toshiba_acpi_dev *dev)
3153 {
3154 pr_info("Supported laptop features:");
3155
3156 if (dev->hotkey_dev)
3157 pr_cont(" hotkeys");
3158 if (dev->backlight_dev)
3159 pr_cont(" backlight");
3160 if (dev->video_supported)
3161 pr_cont(" video-out");
3162 if (dev->fan_supported)
3163 pr_cont(" fan");
3164 if (dev->fan_rpm_supported)
3165 pr_cont(" fan-rpm");
3166 if (dev->tr_backlight_supported)
3167 pr_cont(" transflective-backlight");
3168 if (dev->illumination_supported)
3169 pr_cont(" illumination");
3170 if (dev->kbd_illum_supported)
3171 pr_cont(" keyboard-backlight");
3172 if (dev->touchpad_supported)
3173 pr_cont(" touchpad");
3174 if (dev->eco_supported)
3175 pr_cont(" eco-led");
3176 if (dev->accelerometer_supported)
3177 pr_cont(" accelerometer-axes");
3178 if (dev->usb_sleep_charge_supported)
3179 pr_cont(" usb-sleep-charge");
3180 if (dev->usb_rapid_charge_supported)
3181 pr_cont(" usb-rapid-charge");
3182 if (dev->usb_sleep_music_supported)
3183 pr_cont(" usb-sleep-music");
3184 if (dev->kbd_function_keys_supported)
3185 pr_cont(" special-function-keys");
3186 if (dev->panel_power_on_supported)
3187 pr_cont(" panel-power-on");
3188 if (dev->usb_three_supported)
3189 pr_cont(" usb3");
3190 if (dev->wwan_supported)
3191 pr_cont(" wwan");
3192 if (dev->cooling_method_supported)
3193 pr_cont(" cooling-method");
3194 if (dev->battery_charge_mode_supported)
3195 pr_cont(" battery-charge-mode");
3196
3197 pr_cont("\n");
3198 }
3199
toshiba_acpi_remove(struct acpi_device * acpi_dev)3200 static void toshiba_acpi_remove(struct acpi_device *acpi_dev)
3201 {
3202 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3203
3204 misc_deregister(&dev->miscdev);
3205
3206 remove_toshiba_proc_entries(dev);
3207
3208 #if IS_ENABLED(CONFIG_HWMON)
3209 if (dev->hwmon_device)
3210 hwmon_device_unregister(dev->hwmon_device);
3211 #endif
3212
3213 if (dev->accelerometer_supported && dev->indio_dev) {
3214 iio_device_unregister(dev->indio_dev);
3215 iio_device_free(dev->indio_dev);
3216 }
3217
3218 if (dev->sysfs_created)
3219 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3220 &toshiba_attr_group);
3221
3222 if (dev->ntfy_supported) {
3223 i8042_remove_filter(toshiba_acpi_i8042_filter);
3224 cancel_work_sync(&dev->hotkey_work);
3225 }
3226
3227 if (dev->hotkey_dev)
3228 input_unregister_device(dev->hotkey_dev);
3229
3230 backlight_device_unregister(dev->backlight_dev);
3231
3232 led_classdev_unregister(&dev->led_dev);
3233 led_classdev_unregister(&dev->kbd_led);
3234 led_classdev_unregister(&dev->eco_led);
3235
3236 if (dev->wwan_rfk) {
3237 rfkill_unregister(dev->wwan_rfk);
3238 rfkill_destroy(dev->wwan_rfk);
3239 }
3240
3241 if (dev->battery_charge_mode_supported)
3242 battery_hook_unregister(&battery_hook);
3243
3244 if (toshiba_acpi)
3245 toshiba_acpi = NULL;
3246
3247 kfree(dev);
3248 }
3249
find_hci_method(acpi_handle handle)3250 static const char *find_hci_method(acpi_handle handle)
3251 {
3252 if (acpi_has_method(handle, "GHCI"))
3253 return "GHCI";
3254
3255 if (acpi_has_method(handle, "SPFC"))
3256 return "SPFC";
3257
3258 return NULL;
3259 }
3260
3261 /*
3262 * Some Toshibas have a broken acpi-video interface for brightness control,
3263 * these are quirked in drivers/acpi/video_detect.c to use the GPU native
3264 * (/sys/class/backlight/intel_backlight) instead.
3265 * But these need a HCI_SET call to actually turn the panel back on at resume,
3266 * without this call the screen stays black at resume.
3267 * Either HCI_LCD_BRIGHTNESS (used by acpi_video's _BCM) or HCI_PANEL_POWER_ON
3268 * works. toshiba_acpi_resume() uses HCI_PANEL_POWER_ON to avoid changing
3269 * the configured brightness level.
3270 */
3271 #define QUIRK_TURN_ON_PANEL_ON_RESUME BIT(0)
3272 /*
3273 * Some Toshibas use "quickstart" keys. On these, HCI_HOTKEY_EVENT must use
3274 * the value HCI_HOTKEY_ENABLE_QUICKSTART.
3275 */
3276 #define QUIRK_HCI_HOTKEY_QUICKSTART BIT(1)
3277
3278 static const struct dmi_system_id toshiba_dmi_quirks[] __initconst = {
3279 {
3280 /* Toshiba Portégé R700 */
3281 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3282 .matches = {
3283 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3284 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
3285 },
3286 .driver_data = (void *)QUIRK_TURN_ON_PANEL_ON_RESUME,
3287 },
3288 {
3289 /* Toshiba Satellite/Portégé R830 */
3290 /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
3291 /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3292 .matches = {
3293 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3294 DMI_MATCH(DMI_PRODUCT_NAME, "R830"),
3295 },
3296 .driver_data = (void *)QUIRK_TURN_ON_PANEL_ON_RESUME,
3297 },
3298 {
3299 /* Toshiba Satellite/Portégé Z830 */
3300 .matches = {
3301 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3302 DMI_MATCH(DMI_PRODUCT_NAME, "Z830"),
3303 },
3304 .driver_data = (void *)(QUIRK_TURN_ON_PANEL_ON_RESUME | QUIRK_HCI_HOTKEY_QUICKSTART),
3305 },
3306 { }
3307 };
3308
toshiba_acpi_add(struct acpi_device * acpi_dev)3309 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3310 {
3311 struct toshiba_acpi_dev *dev;
3312 const char *hci_method;
3313 u32 dummy;
3314 int ret = 0;
3315
3316 if (toshiba_acpi)
3317 return -EBUSY;
3318
3319 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3320 TOSHIBA_ACPI_VERSION);
3321
3322 hci_method = find_hci_method(acpi_dev->handle);
3323 if (!hci_method) {
3324 pr_err("HCI interface not found\n");
3325 return -ENODEV;
3326 }
3327
3328 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3329 if (!dev)
3330 return -ENOMEM;
3331 dev->acpi_dev = acpi_dev;
3332 dev->method_hci = hci_method;
3333 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3334 dev->miscdev.name = "toshiba_acpi";
3335 dev->miscdev.fops = &toshiba_acpi_fops;
3336
3337 ret = misc_register(&dev->miscdev);
3338 if (ret) {
3339 pr_err("Failed to register miscdevice\n");
3340 kfree(dev);
3341 return ret;
3342 }
3343
3344 acpi_dev->driver_data = dev;
3345 dev_set_drvdata(&acpi_dev->dev, dev);
3346
3347 /* Query the BIOS for supported features */
3348
3349 /*
3350 * The "Special Functions" are always supported by the laptops
3351 * with the new keyboard layout, query for its presence to help
3352 * determine the keymap layout to use.
3353 */
3354 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3355 dev->kbd_function_keys_supported = !ret;
3356
3357 dev->hotkey_event_type = 0;
3358 if (toshiba_acpi_setup_keyboard(dev))
3359 pr_info("Unable to activate hotkeys\n");
3360
3361 /* Determine whether or not BIOS supports transflective backlight */
3362 ret = get_tr_backlight_status(dev, &dummy);
3363 dev->tr_backlight_supported = !ret;
3364
3365 ret = toshiba_acpi_setup_backlight(dev);
3366 if (ret)
3367 goto error;
3368
3369 toshiba_illumination_available(dev);
3370 if (dev->illumination_supported) {
3371 dev->led_dev.name = "toshiba::illumination";
3372 dev->led_dev.max_brightness = 1;
3373 dev->led_dev.brightness_set = toshiba_illumination_set;
3374 dev->led_dev.brightness_get = toshiba_illumination_get;
3375 led_classdev_register(&acpi_dev->dev, &dev->led_dev);
3376 }
3377
3378 toshiba_eco_mode_available(dev);
3379 if (dev->eco_supported) {
3380 dev->eco_led.name = "toshiba::eco_mode";
3381 dev->eco_led.max_brightness = 1;
3382 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3383 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3384 led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led);
3385 }
3386
3387 toshiba_kbd_illum_available(dev);
3388 /*
3389 * Only register the LED if KBD illumination is supported
3390 * and the keyboard backlight operation mode is set to FN-Z
3391 * or we detect a second gen keyboard backlight
3392 */
3393 if (dev->kbd_illum_supported &&
3394 (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3395 dev->kbd_led.name = "toshiba::kbd_backlight";
3396 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3397 dev->kbd_led.max_brightness = 1;
3398 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3399 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3400 led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led);
3401 }
3402
3403 ret = toshiba_touchpad_get(dev, &dummy);
3404 dev->touchpad_supported = !ret;
3405
3406 toshiba_accelerometer_available(dev);
3407 if (dev->accelerometer_supported) {
3408 dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev));
3409 if (!dev->indio_dev) {
3410 pr_err("Unable to allocate iio device\n");
3411 goto iio_error;
3412 }
3413
3414 pr_info("Registering Toshiba accelerometer iio device\n");
3415
3416 dev->indio_dev->info = &toshiba_iio_accel_info;
3417 dev->indio_dev->name = "Toshiba accelerometer";
3418 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3419 dev->indio_dev->channels = toshiba_iio_accel_channels;
3420 dev->indio_dev->num_channels =
3421 ARRAY_SIZE(toshiba_iio_accel_channels);
3422
3423 ret = iio_device_register(dev->indio_dev);
3424 if (ret < 0) {
3425 pr_err("Unable to register iio device\n");
3426 iio_device_free(dev->indio_dev);
3427 }
3428 }
3429 iio_error:
3430
3431 toshiba_usb_sleep_charge_available(dev);
3432
3433 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3434 dev->usb_rapid_charge_supported = !ret;
3435
3436 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3437 dev->usb_sleep_music_supported = !ret;
3438
3439 ret = toshiba_panel_power_on_get(dev, &dummy);
3440 dev->panel_power_on_supported = !ret;
3441
3442 ret = toshiba_usb_three_get(dev, &dummy);
3443 dev->usb_three_supported = !ret;
3444
3445 ret = get_video_status(dev, &dummy);
3446 dev->video_supported = !ret;
3447
3448 ret = get_fan_status(dev, &dummy);
3449 dev->fan_supported = !ret;
3450
3451 ret = get_fan_rpm(dev, &dummy);
3452 dev->fan_rpm_supported = !ret;
3453
3454 #if IS_ENABLED(CONFIG_HWMON)
3455 if (dev->fan_rpm_supported) {
3456 dev->hwmon_device = hwmon_device_register_with_info(
3457 &dev->acpi_dev->dev, "toshiba_acpi_sensors", NULL,
3458 &toshiba_acpi_hwmon_chip_info, NULL);
3459 if (IS_ERR(dev->hwmon_device)) {
3460 dev->hwmon_device = NULL;
3461 pr_warn("unable to register hwmon device, skipping\n");
3462 }
3463 }
3464 #endif
3465
3466 toshiba_wwan_available(dev);
3467 if (dev->wwan_supported)
3468 toshiba_acpi_setup_wwan_rfkill(dev);
3469
3470 toshiba_cooling_method_available(dev);
3471
3472 toshiba_battery_charge_mode_available(dev);
3473
3474 print_supported_features(dev);
3475
3476 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3477 &toshiba_attr_group);
3478 if (ret) {
3479 dev->sysfs_created = 0;
3480 goto error;
3481 }
3482 dev->sysfs_created = !ret;
3483
3484 create_toshiba_proc_entries(dev);
3485
3486 toshiba_acpi = dev;
3487
3488 /*
3489 * As the battery hook relies on the static variable toshiba_acpi being
3490 * set, this must be done after toshiba_acpi is assigned.
3491 */
3492 if (dev->battery_charge_mode_supported)
3493 battery_hook_register(&battery_hook);
3494
3495 return 0;
3496
3497 error:
3498 toshiba_acpi_remove(acpi_dev);
3499 return ret;
3500 }
3501
toshiba_acpi_notify(struct acpi_device * acpi_dev,u32 event)3502 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3503 {
3504 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3505
3506 switch (event) {
3507 case 0x80: /* Hotkeys and some system events */
3508 /*
3509 * Machines with this WMI GUID aren't supported due to bugs in
3510 * their AML.
3511 *
3512 * Return silently to avoid triggering a netlink event.
3513 */
3514 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3515 return;
3516 toshiba_acpi_process_hotkeys(dev);
3517 break;
3518 case 0x81: /* Dock events */
3519 case 0x82:
3520 case 0x83:
3521 pr_info("Dock event received %x\n", event);
3522 break;
3523 case 0x88: /* Thermal events */
3524 pr_info("Thermal event received\n");
3525 break;
3526 case 0x8f: /* LID closed */
3527 case 0x90: /* LID is closed and Dock has been ejected */
3528 break;
3529 case 0x8c: /* SATA power events */
3530 case 0x8b:
3531 pr_info("SATA power event received %x\n", event);
3532 break;
3533 case 0x92: /* Keyboard backlight mode changed */
3534 dev->kbd_event_generated = true;
3535 /* Update sysfs entries */
3536 if (sysfs_update_group(&acpi_dev->dev.kobj,
3537 &toshiba_attr_group))
3538 pr_err("Unable to update sysfs entries\n");
3539 /* Notify LED subsystem about keyboard backlight change */
3540 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3541 led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3542 (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3543 LED_FULL : LED_OFF);
3544 break;
3545 case 0x85: /* Unknown */
3546 case 0x8d: /* Unknown */
3547 case 0x8e: /* Unknown */
3548 case 0x94: /* Unknown */
3549 case 0x95: /* Unknown */
3550 default:
3551 pr_info("Unknown event received %x\n", event);
3552 break;
3553 }
3554
3555 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3556 dev_name(&acpi_dev->dev),
3557 event, (event == 0x80) ?
3558 dev->last_key_event : 0);
3559 }
3560
3561 #ifdef CONFIG_PM_SLEEP
toshiba_acpi_suspend(struct device * device)3562 static int toshiba_acpi_suspend(struct device *device)
3563 {
3564 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3565
3566 if (dev->hotkey_dev) {
3567 u32 result;
3568
3569 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3570 if (result != TOS_SUCCESS)
3571 pr_info("Unable to disable hotkeys\n");
3572 }
3573
3574 return 0;
3575 }
3576
toshiba_acpi_resume(struct device * device)3577 static int toshiba_acpi_resume(struct device *device)
3578 {
3579 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3580
3581 if (dev->hotkey_dev) {
3582 if (toshiba_acpi_enable_hotkeys(dev))
3583 pr_info("Unable to re-enable hotkeys\n");
3584 }
3585
3586 if (dev->wwan_rfk) {
3587 if (!toshiba_wireless_status(dev))
3588 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3589 }
3590
3591 if (turn_on_panel_on_resume)
3592 hci_write(dev, HCI_PANEL_POWER_ON, 1);
3593
3594 return 0;
3595 }
3596 #endif
3597
3598 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3599 toshiba_acpi_suspend, toshiba_acpi_resume);
3600
3601 static struct acpi_driver toshiba_acpi_driver = {
3602 .name = "Toshiba ACPI driver",
3603 .owner = THIS_MODULE,
3604 .ids = toshiba_device_ids,
3605 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3606 .ops = {
3607 .add = toshiba_acpi_add,
3608 .remove = toshiba_acpi_remove,
3609 .notify = toshiba_acpi_notify,
3610 },
3611 .drv.pm = &toshiba_acpi_pm,
3612 };
3613
toshiba_dmi_init(void)3614 static void __init toshiba_dmi_init(void)
3615 {
3616 const struct dmi_system_id *dmi_id;
3617 long quirks = 0;
3618
3619 dmi_id = dmi_first_match(toshiba_dmi_quirks);
3620 if (dmi_id)
3621 quirks = (long)dmi_id->driver_data;
3622
3623 if (turn_on_panel_on_resume == -1)
3624 turn_on_panel_on_resume = !!(quirks & QUIRK_TURN_ON_PANEL_ON_RESUME);
3625
3626 if (hci_hotkey_quickstart == -1)
3627 hci_hotkey_quickstart = !!(quirks & QUIRK_HCI_HOTKEY_QUICKSTART);
3628 }
3629
toshiba_acpi_init(void)3630 static int __init toshiba_acpi_init(void)
3631 {
3632 int ret;
3633
3634 toshiba_dmi_init();
3635 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3636 if (!toshiba_proc_dir) {
3637 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3638 return -ENODEV;
3639 }
3640
3641 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3642 if (ret) {
3643 pr_err("Failed to register ACPI driver: %d\n", ret);
3644 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3645 }
3646
3647 return ret;
3648 }
3649
toshiba_acpi_exit(void)3650 static void __exit toshiba_acpi_exit(void)
3651 {
3652 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3653 if (toshiba_proc_dir)
3654 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3655 }
3656
3657 module_init(toshiba_acpi_init);
3658 module_exit(toshiba_acpi_exit);
3659