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, 0x0e00, { KEY_RESERVED } }, /* Wake from sleep */
274 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
275 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
276 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
277 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
278 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
279 { KE_END, 0 },
280 };
281
282 static const struct key_entry toshiba_acpi_alt_keymap[] = {
283 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
284 { KE_KEY, 0x103, { KEY_ZOOMIN } },
285 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
286 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
287 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
288 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
289 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
290 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
291 { KE_KEY, 0x157, { KEY_MUTE } },
292 { KE_KEY, 0x158, { KEY_WLAN } },
293 { KE_END, 0 },
294 };
295
296 /*
297 * Utility
298 */
299
_set_bit(u32 * word,u32 mask,int value)300 static inline void _set_bit(u32 *word, u32 mask, int value)
301 {
302 *word = (*word & ~mask) | (mask * value);
303 }
304
305 /*
306 * ACPI interface wrappers
307 */
308
write_acpi_int(const char * methodName,int val)309 static int write_acpi_int(const char *methodName, int val)
310 {
311 acpi_status status;
312
313 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
314 return (status == AE_OK) ? 0 : -EIO;
315 }
316
317 /*
318 * Perform a raw configuration call. Here we don't care about input or output
319 * buffer format.
320 */
tci_raw(struct toshiba_acpi_dev * dev,const u32 in[TCI_WORDS],u32 out[TCI_WORDS])321 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
322 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
323 {
324 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
325 struct acpi_object_list params;
326 struct acpi_buffer results;
327 acpi_status status;
328 int i;
329
330 params.count = TCI_WORDS;
331 params.pointer = in_objs;
332 for (i = 0; i < TCI_WORDS; ++i) {
333 in_objs[i].type = ACPI_TYPE_INTEGER;
334 in_objs[i].integer.value = in[i];
335 }
336
337 results.length = sizeof(out_objs);
338 results.pointer = out_objs;
339
340 status = acpi_evaluate_object(dev->acpi_dev->handle,
341 (char *)dev->method_hci, ¶ms,
342 &results);
343 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
344 for (i = 0; i < out_objs->package.count; ++i)
345 out[i] = out_objs->package.elements[i].integer.value;
346 }
347
348 return status;
349 }
350
351 /*
352 * Common hci tasks
353 *
354 * In addition to the ACPI status, the HCI system returns a result which
355 * may be useful (such as "not supported").
356 */
357
hci_write(struct toshiba_acpi_dev * dev,u32 reg,u32 in1)358 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
359 {
360 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
361 u32 out[TCI_WORDS];
362 acpi_status status = tci_raw(dev, in, out);
363
364 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
365 }
366
hci_read(struct toshiba_acpi_dev * dev,u32 reg,u32 * out1)367 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
368 {
369 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
370 u32 out[TCI_WORDS];
371 acpi_status status = tci_raw(dev, in, out);
372
373 if (ACPI_FAILURE(status))
374 return TOS_FAILURE;
375
376 *out1 = out[2];
377
378 return out[0];
379 }
380
381 /*
382 * Common sci tasks
383 */
384
sci_open(struct toshiba_acpi_dev * dev)385 static int sci_open(struct toshiba_acpi_dev *dev)
386 {
387 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
388 u32 out[TCI_WORDS];
389 acpi_status status = tci_raw(dev, in, out);
390
391 if (ACPI_FAILURE(status)) {
392 pr_err("ACPI call to open SCI failed\n");
393 return 0;
394 }
395
396 if (out[0] == TOS_OPEN_CLOSE_OK) {
397 return 1;
398 } else if (out[0] == TOS_ALREADY_OPEN) {
399 pr_info("Toshiba SCI already opened\n");
400 return 1;
401 } else if (out[0] == TOS_NOT_SUPPORTED) {
402 /*
403 * Some BIOSes do not have the SCI open/close functions
404 * implemented and return 0x8000 (Not Supported), failing to
405 * register some supported features.
406 *
407 * Simply return 1 if we hit those affected laptops to make the
408 * supported features work.
409 *
410 * In the case that some laptops really do not support the SCI,
411 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
412 * and thus, not registering support for the queried feature.
413 */
414 return 1;
415 } else if (out[0] == TOS_NOT_PRESENT) {
416 pr_info("Toshiba SCI is not present\n");
417 }
418
419 return 0;
420 }
421
sci_close(struct toshiba_acpi_dev * dev)422 static void sci_close(struct toshiba_acpi_dev *dev)
423 {
424 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
425 u32 out[TCI_WORDS];
426 acpi_status status = tci_raw(dev, in, out);
427
428 if (ACPI_FAILURE(status)) {
429 pr_err("ACPI call to close SCI failed\n");
430 return;
431 }
432
433 if (out[0] == TOS_OPEN_CLOSE_OK)
434 return;
435 else if (out[0] == TOS_NOT_OPENED)
436 pr_info("Toshiba SCI not opened\n");
437 else if (out[0] == TOS_NOT_PRESENT)
438 pr_info("Toshiba SCI is not present\n");
439 }
440
sci_read(struct toshiba_acpi_dev * dev,u32 reg,u32 * out1)441 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
442 {
443 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
444 u32 out[TCI_WORDS];
445 acpi_status status = tci_raw(dev, in, out);
446
447 if (ACPI_FAILURE(status))
448 return TOS_FAILURE;
449
450 *out1 = out[2];
451
452 return out[0];
453 }
454
sci_write(struct toshiba_acpi_dev * dev,u32 reg,u32 in1)455 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
456 {
457 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
458 u32 out[TCI_WORDS];
459 acpi_status status = tci_raw(dev, in, out);
460
461 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
462 }
463
464 /* Illumination support */
toshiba_illumination_available(struct toshiba_acpi_dev * dev)465 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
466 {
467 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
468 u32 out[TCI_WORDS];
469 acpi_status status;
470
471 dev->illumination_supported = 0;
472
473 if (!sci_open(dev))
474 return;
475
476 status = tci_raw(dev, in, out);
477 sci_close(dev);
478 if (ACPI_FAILURE(status)) {
479 pr_err("ACPI call to query Illumination support failed\n");
480 return;
481 }
482
483 if (out[0] != TOS_SUCCESS)
484 return;
485
486 dev->illumination_supported = 1;
487 }
488
toshiba_illumination_set(struct led_classdev * cdev,enum led_brightness brightness)489 static void toshiba_illumination_set(struct led_classdev *cdev,
490 enum led_brightness brightness)
491 {
492 struct toshiba_acpi_dev *dev = container_of(cdev,
493 struct toshiba_acpi_dev, led_dev);
494 u32 result;
495 u32 state;
496
497 /* First request : initialize communication. */
498 if (!sci_open(dev))
499 return;
500
501 /* Switch the illumination on/off */
502 state = brightness ? 1 : 0;
503 result = sci_write(dev, SCI_ILLUMINATION, state);
504 sci_close(dev);
505 if (result == TOS_FAILURE)
506 pr_err("ACPI call for illumination failed\n");
507 }
508
toshiba_illumination_get(struct led_classdev * cdev)509 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
510 {
511 struct toshiba_acpi_dev *dev = container_of(cdev,
512 struct toshiba_acpi_dev, led_dev);
513 u32 result;
514 u32 state;
515
516 /* First request : initialize communication. */
517 if (!sci_open(dev))
518 return LED_OFF;
519
520 /* Check the illumination */
521 result = sci_read(dev, SCI_ILLUMINATION, &state);
522 sci_close(dev);
523 if (result == TOS_FAILURE) {
524 pr_err("ACPI call for illumination failed\n");
525 return LED_OFF;
526 } else if (result != TOS_SUCCESS) {
527 return LED_OFF;
528 }
529
530 return state ? LED_FULL : LED_OFF;
531 }
532
533 /* KBD Illumination */
toshiba_kbd_illum_available(struct toshiba_acpi_dev * dev)534 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
535 {
536 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
537 u32 out[TCI_WORDS];
538 acpi_status status;
539
540 dev->kbd_illum_supported = 0;
541 dev->kbd_event_generated = false;
542
543 if (!sci_open(dev))
544 return;
545
546 status = tci_raw(dev, in, out);
547 sci_close(dev);
548 if (ACPI_FAILURE(status)) {
549 pr_err("ACPI call to query kbd illumination support failed\n");
550 return;
551 }
552
553 if (out[0] != TOS_SUCCESS)
554 return;
555
556 /*
557 * Check for keyboard backlight timeout max value,
558 * previous kbd backlight implementation set this to
559 * 0x3c0003, and now the new implementation set this
560 * to 0x3c001a, use this to distinguish between them.
561 */
562 if (out[3] == SCI_KBD_TIME_MAX)
563 dev->kbd_type = 2;
564 else
565 dev->kbd_type = 1;
566 /* Get the current keyboard backlight mode */
567 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
568 /* Get the current time (1-60 seconds) */
569 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
570 /* Flag as supported */
571 dev->kbd_illum_supported = 1;
572 }
573
toshiba_kbd_illum_status_set(struct toshiba_acpi_dev * dev,u32 time)574 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
575 {
576 u32 result;
577
578 if (!sci_open(dev))
579 return -EIO;
580
581 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
582 sci_close(dev);
583 if (result == TOS_FAILURE)
584 pr_err("ACPI call to set KBD backlight status failed\n");
585 else if (result == TOS_NOT_SUPPORTED)
586 return -ENODEV;
587
588 return result == TOS_SUCCESS ? 0 : -EIO;
589 }
590
toshiba_kbd_illum_status_get(struct toshiba_acpi_dev * dev,u32 * time)591 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
592 {
593 u32 result;
594
595 if (!sci_open(dev))
596 return -EIO;
597
598 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
599 sci_close(dev);
600 if (result == TOS_FAILURE)
601 pr_err("ACPI call to get KBD backlight status failed\n");
602 else if (result == TOS_NOT_SUPPORTED)
603 return -ENODEV;
604
605 return result == TOS_SUCCESS ? 0 : -EIO;
606 }
607
toshiba_kbd_backlight_get(struct led_classdev * cdev)608 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
609 {
610 struct toshiba_acpi_dev *dev = container_of(cdev,
611 struct toshiba_acpi_dev, kbd_led);
612 u32 result;
613 u32 state;
614
615 /* Check the keyboard backlight state */
616 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
617 if (result == TOS_FAILURE) {
618 pr_err("ACPI call to get the keyboard backlight failed\n");
619 return LED_OFF;
620 } else if (result != TOS_SUCCESS) {
621 return LED_OFF;
622 }
623
624 return state ? LED_FULL : LED_OFF;
625 }
626
toshiba_kbd_backlight_set(struct led_classdev * cdev,enum led_brightness brightness)627 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
628 enum led_brightness brightness)
629 {
630 struct toshiba_acpi_dev *dev = container_of(cdev,
631 struct toshiba_acpi_dev, kbd_led);
632 u32 result;
633 u32 state;
634
635 /* Set the keyboard backlight state */
636 state = brightness ? 1 : 0;
637 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
638 if (result == TOS_FAILURE)
639 pr_err("ACPI call to set KBD Illumination mode failed\n");
640 }
641
642 /* TouchPad support */
toshiba_touchpad_set(struct toshiba_acpi_dev * dev,u32 state)643 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
644 {
645 u32 result;
646
647 if (!sci_open(dev))
648 return -EIO;
649
650 result = sci_write(dev, SCI_TOUCHPAD, state);
651 sci_close(dev);
652 if (result == TOS_FAILURE)
653 pr_err("ACPI call to set the touchpad failed\n");
654 else if (result == TOS_NOT_SUPPORTED)
655 return -ENODEV;
656
657 return result == TOS_SUCCESS ? 0 : -EIO;
658 }
659
toshiba_touchpad_get(struct toshiba_acpi_dev * dev,u32 * state)660 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
661 {
662 u32 result;
663
664 if (!sci_open(dev))
665 return -EIO;
666
667 result = sci_read(dev, SCI_TOUCHPAD, state);
668 sci_close(dev);
669 if (result == TOS_FAILURE)
670 pr_err("ACPI call to query the touchpad failed\n");
671 else if (result == TOS_NOT_SUPPORTED)
672 return -ENODEV;
673
674 return result == TOS_SUCCESS ? 0 : -EIO;
675 }
676
677 /* Eco Mode support */
toshiba_eco_mode_available(struct toshiba_acpi_dev * dev)678 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
679 {
680 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
681 u32 out[TCI_WORDS];
682 acpi_status status;
683
684 dev->eco_supported = 0;
685
686 status = tci_raw(dev, in, out);
687 if (ACPI_FAILURE(status)) {
688 pr_err("ACPI call to get ECO led failed\n");
689 return;
690 }
691
692 if (out[0] == TOS_INPUT_DATA_ERROR || out[0] == TOS_NOT_SUPPORTED) {
693 /*
694 * If we receive 0x8300 (Input Data Error), it means that the
695 * LED device is present, but that we just screwed the input
696 * parameters.
697 *
698 * On some laptops 0x8000 (Not supported) is also returned in
699 * this case, so we need to allow for that as well.
700 *
701 * Let's query the status of the LED to see if we really have a
702 * success response, indicating the actual presense of the LED,
703 * bail out otherwise.
704 */
705 in[3] = 1;
706 status = tci_raw(dev, in, out);
707 if (ACPI_FAILURE(status)) {
708 pr_err("ACPI call to get ECO led failed\n");
709 return;
710 }
711
712 if (out[0] != TOS_SUCCESS)
713 return;
714
715 dev->eco_supported = 1;
716 }
717 }
718
719 static enum led_brightness
toshiba_eco_mode_get_status(struct led_classdev * cdev)720 toshiba_eco_mode_get_status(struct led_classdev *cdev)
721 {
722 struct toshiba_acpi_dev *dev = container_of(cdev,
723 struct toshiba_acpi_dev, eco_led);
724 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
725 u32 out[TCI_WORDS];
726 acpi_status status;
727
728 status = tci_raw(dev, in, out);
729 if (ACPI_FAILURE(status)) {
730 pr_err("ACPI call to get ECO led failed\n");
731 return LED_OFF;
732 }
733
734 if (out[0] != TOS_SUCCESS)
735 return LED_OFF;
736
737 return out[2] ? LED_FULL : LED_OFF;
738 }
739
toshiba_eco_mode_set_status(struct led_classdev * cdev,enum led_brightness brightness)740 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
741 enum led_brightness brightness)
742 {
743 struct toshiba_acpi_dev *dev = container_of(cdev,
744 struct toshiba_acpi_dev, eco_led);
745 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
746 u32 out[TCI_WORDS];
747 acpi_status status;
748
749 /* Switch the Eco Mode led on/off */
750 in[2] = (brightness) ? 1 : 0;
751 status = tci_raw(dev, in, out);
752 if (ACPI_FAILURE(status))
753 pr_err("ACPI call to set ECO led failed\n");
754 }
755
756 /* Accelerometer support */
toshiba_accelerometer_available(struct toshiba_acpi_dev * dev)757 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
758 {
759 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
760 u32 out[TCI_WORDS];
761 acpi_status status;
762
763 dev->accelerometer_supported = 0;
764
765 /*
766 * Check if the accelerometer call exists,
767 * this call also serves as initialization
768 */
769 status = tci_raw(dev, in, out);
770 if (ACPI_FAILURE(status)) {
771 pr_err("ACPI call to query the accelerometer failed\n");
772 return;
773 }
774
775 if (out[0] != TOS_SUCCESS)
776 return;
777
778 dev->accelerometer_supported = 1;
779 }
780
toshiba_accelerometer_get(struct toshiba_acpi_dev * dev,u32 * xy,u32 * z)781 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
782 u32 *xy, u32 *z)
783 {
784 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
785 u32 out[TCI_WORDS];
786 acpi_status status;
787
788 /* Check the Accelerometer status */
789 status = tci_raw(dev, in, out);
790 if (ACPI_FAILURE(status)) {
791 pr_err("ACPI call to query the accelerometer failed\n");
792 return -EIO;
793 }
794
795 if (out[0] == TOS_NOT_SUPPORTED)
796 return -ENODEV;
797
798 if (out[0] != TOS_SUCCESS)
799 return -EIO;
800
801 *xy = out[2];
802 *z = out[4];
803
804 return 0;
805 }
806
807 /* Sleep (Charge and Music) utilities support */
toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev * dev)808 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
809 {
810 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
811 u32 out[TCI_WORDS];
812 acpi_status status;
813
814 dev->usb_sleep_charge_supported = 0;
815
816 if (!sci_open(dev))
817 return;
818
819 status = tci_raw(dev, in, out);
820 if (ACPI_FAILURE(status)) {
821 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
822 sci_close(dev);
823 return;
824 }
825
826 if (out[0] != TOS_SUCCESS) {
827 sci_close(dev);
828 return;
829 }
830
831 dev->usbsc_mode_base = out[4];
832
833 in[5] = SCI_USB_CHARGE_BAT_LVL;
834 status = tci_raw(dev, in, out);
835 sci_close(dev);
836 if (ACPI_FAILURE(status)) {
837 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
838 return;
839 }
840
841 if (out[0] != TOS_SUCCESS)
842 return;
843
844 dev->usbsc_bat_level = out[2];
845 /* Flag as supported */
846 dev->usb_sleep_charge_supported = 1;
847 }
848
toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev * dev,u32 * mode)849 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
850 u32 *mode)
851 {
852 u32 result;
853
854 if (!sci_open(dev))
855 return -EIO;
856
857 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
858 sci_close(dev);
859 if (result == TOS_FAILURE)
860 pr_err("ACPI call to set USB S&C mode failed\n");
861 else if (result == TOS_NOT_SUPPORTED)
862 return -ENODEV;
863
864 return result == TOS_SUCCESS ? 0 : -EIO;
865 }
866
toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev * dev,u32 mode)867 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
868 u32 mode)
869 {
870 u32 result;
871
872 if (!sci_open(dev))
873 return -EIO;
874
875 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
876 sci_close(dev);
877 if (result == TOS_FAILURE)
878 pr_err("ACPI call to set USB S&C mode failed\n");
879 else if (result == TOS_NOT_SUPPORTED)
880 return -ENODEV;
881
882 return result == TOS_SUCCESS ? 0 : -EIO;
883 }
884
toshiba_sleep_functions_status_get(struct toshiba_acpi_dev * dev,u32 * mode)885 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
886 u32 *mode)
887 {
888 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
889 u32 out[TCI_WORDS];
890 acpi_status status;
891
892 if (!sci_open(dev))
893 return -EIO;
894
895 in[5] = SCI_USB_CHARGE_BAT_LVL;
896 status = tci_raw(dev, in, out);
897 sci_close(dev);
898 if (ACPI_FAILURE(status)) {
899 pr_err("ACPI call to get USB S&C battery level failed\n");
900 return -EIO;
901 }
902
903 if (out[0] == TOS_NOT_SUPPORTED)
904 return -ENODEV;
905
906 if (out[0] != TOS_SUCCESS)
907 return -EIO;
908
909 *mode = out[2];
910
911 return 0;
912
913 }
914
toshiba_sleep_functions_status_set(struct toshiba_acpi_dev * dev,u32 mode)915 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
916 u32 mode)
917 {
918 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
919 u32 out[TCI_WORDS];
920 acpi_status status;
921
922 if (!sci_open(dev))
923 return -EIO;
924
925 in[2] = mode;
926 in[5] = SCI_USB_CHARGE_BAT_LVL;
927 status = tci_raw(dev, in, out);
928 sci_close(dev);
929 if (ACPI_FAILURE(status)) {
930 pr_err("ACPI call to set USB S&C battery level failed\n");
931 return -EIO;
932 }
933
934 if (out[0] == TOS_NOT_SUPPORTED)
935 return -ENODEV;
936
937 return out[0] == TOS_SUCCESS ? 0 : -EIO;
938 }
939
toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev * dev,u32 * state)940 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
941 u32 *state)
942 {
943 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
944 u32 out[TCI_WORDS];
945 acpi_status status;
946
947 if (!sci_open(dev))
948 return -EIO;
949
950 in[5] = SCI_USB_CHARGE_RAPID_DSP;
951 status = tci_raw(dev, in, out);
952 sci_close(dev);
953 if (ACPI_FAILURE(status)) {
954 pr_err("ACPI call to get USB Rapid Charge failed\n");
955 return -EIO;
956 }
957
958 if (out[0] == TOS_NOT_SUPPORTED)
959 return -ENODEV;
960
961 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
962 return -EIO;
963
964 *state = out[2];
965
966 return 0;
967 }
968
toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev * dev,u32 state)969 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
970 u32 state)
971 {
972 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
973 u32 out[TCI_WORDS];
974 acpi_status status;
975
976 if (!sci_open(dev))
977 return -EIO;
978
979 in[2] = state;
980 in[5] = SCI_USB_CHARGE_RAPID_DSP;
981 status = tci_raw(dev, in, out);
982 sci_close(dev);
983 if (ACPI_FAILURE(status)) {
984 pr_err("ACPI call to set USB Rapid Charge failed\n");
985 return -EIO;
986 }
987
988 if (out[0] == TOS_NOT_SUPPORTED)
989 return -ENODEV;
990
991 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
992 }
993
toshiba_usb_sleep_music_get(struct toshiba_acpi_dev * dev,u32 * state)994 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
995 {
996 u32 result;
997
998 if (!sci_open(dev))
999 return -EIO;
1000
1001 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
1002 sci_close(dev);
1003 if (result == TOS_FAILURE)
1004 pr_err("ACPI call to get Sleep and Music failed\n");
1005 else if (result == TOS_NOT_SUPPORTED)
1006 return -ENODEV;
1007
1008 return result == TOS_SUCCESS ? 0 : -EIO;
1009 }
1010
toshiba_usb_sleep_music_set(struct toshiba_acpi_dev * dev,u32 state)1011 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1012 {
1013 u32 result;
1014
1015 if (!sci_open(dev))
1016 return -EIO;
1017
1018 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1019 sci_close(dev);
1020 if (result == TOS_FAILURE)
1021 pr_err("ACPI call to set Sleep and Music failed\n");
1022 else if (result == TOS_NOT_SUPPORTED)
1023 return -ENODEV;
1024
1025 return result == TOS_SUCCESS ? 0 : -EIO;
1026 }
1027
1028 /* Keyboard function keys */
toshiba_function_keys_get(struct toshiba_acpi_dev * dev,u32 * mode)1029 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1030 {
1031 u32 result;
1032
1033 if (!sci_open(dev))
1034 return -EIO;
1035
1036 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1037 sci_close(dev);
1038 if (result == TOS_FAILURE)
1039 pr_err("ACPI call to get KBD function keys failed\n");
1040 else if (result == TOS_NOT_SUPPORTED)
1041 return -ENODEV;
1042
1043 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1044 }
1045
toshiba_function_keys_set(struct toshiba_acpi_dev * dev,u32 mode)1046 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1047 {
1048 u32 result;
1049
1050 if (!sci_open(dev))
1051 return -EIO;
1052
1053 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1054 sci_close(dev);
1055 if (result == TOS_FAILURE)
1056 pr_err("ACPI call to set KBD function keys failed\n");
1057 else if (result == TOS_NOT_SUPPORTED)
1058 return -ENODEV;
1059
1060 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1061 }
1062
1063 /* Panel Power ON */
toshiba_panel_power_on_get(struct toshiba_acpi_dev * dev,u32 * state)1064 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1065 {
1066 u32 result;
1067
1068 if (!sci_open(dev))
1069 return -EIO;
1070
1071 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1072 sci_close(dev);
1073 if (result == TOS_FAILURE)
1074 pr_err("ACPI call to get Panel Power ON failed\n");
1075 else if (result == TOS_NOT_SUPPORTED)
1076 return -ENODEV;
1077
1078 return result == TOS_SUCCESS ? 0 : -EIO;
1079 }
1080
toshiba_panel_power_on_set(struct toshiba_acpi_dev * dev,u32 state)1081 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1082 {
1083 u32 result;
1084
1085 if (!sci_open(dev))
1086 return -EIO;
1087
1088 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1089 sci_close(dev);
1090 if (result == TOS_FAILURE)
1091 pr_err("ACPI call to set Panel Power ON failed\n");
1092 else if (result == TOS_NOT_SUPPORTED)
1093 return -ENODEV;
1094
1095 return result == TOS_SUCCESS ? 0 : -EIO;
1096 }
1097
1098 /* USB Three */
toshiba_usb_three_get(struct toshiba_acpi_dev * dev,u32 * state)1099 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1100 {
1101 u32 result;
1102
1103 if (!sci_open(dev))
1104 return -EIO;
1105
1106 result = sci_read(dev, SCI_USB_THREE, state);
1107 sci_close(dev);
1108 if (result == TOS_FAILURE)
1109 pr_err("ACPI call to get USB 3 failed\n");
1110 else if (result == TOS_NOT_SUPPORTED)
1111 return -ENODEV;
1112
1113 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1114 }
1115
toshiba_usb_three_set(struct toshiba_acpi_dev * dev,u32 state)1116 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1117 {
1118 u32 result;
1119
1120 if (!sci_open(dev))
1121 return -EIO;
1122
1123 result = sci_write(dev, SCI_USB_THREE, state);
1124 sci_close(dev);
1125 if (result == TOS_FAILURE)
1126 pr_err("ACPI call to set USB 3 failed\n");
1127 else if (result == TOS_NOT_SUPPORTED)
1128 return -ENODEV;
1129
1130 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1131 }
1132
1133 /* Hotkey Event type */
toshiba_hotkey_event_type_get(struct toshiba_acpi_dev * dev,u32 * type)1134 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1135 u32 *type)
1136 {
1137 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1138 u32 out[TCI_WORDS];
1139 acpi_status status;
1140
1141 status = tci_raw(dev, in, out);
1142 if (ACPI_FAILURE(status)) {
1143 pr_err("ACPI call to get System type failed\n");
1144 return -EIO;
1145 }
1146
1147 if (out[0] == TOS_NOT_SUPPORTED)
1148 return -ENODEV;
1149
1150 if (out[0] != TOS_SUCCESS)
1151 return -EIO;
1152
1153 *type = out[3];
1154
1155 return 0;
1156 }
1157
1158 /* Wireless status (RFKill, WLAN, BT, WWAN) */
toshiba_wireless_status(struct toshiba_acpi_dev * dev)1159 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1160 {
1161 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1162 u32 out[TCI_WORDS];
1163 acpi_status status;
1164
1165 in[3] = HCI_WIRELESS_STATUS;
1166 status = tci_raw(dev, in, out);
1167
1168 if (ACPI_FAILURE(status)) {
1169 pr_err("ACPI call to get Wireless status failed\n");
1170 return -EIO;
1171 }
1172
1173 if (out[0] == TOS_NOT_SUPPORTED)
1174 return -ENODEV;
1175
1176 if (out[0] != TOS_SUCCESS)
1177 return -EIO;
1178
1179 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1180
1181 return 0;
1182 }
1183
1184 /* WWAN */
toshiba_wwan_available(struct toshiba_acpi_dev * dev)1185 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1186 {
1187 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1188 u32 out[TCI_WORDS];
1189 acpi_status status;
1190
1191 dev->wwan_supported = 0;
1192
1193 /*
1194 * WWAN support can be queried by setting the in[3] value to
1195 * HCI_WIRELESS_WWAN (0x03).
1196 *
1197 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1198 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1199 *
1200 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1201 * or TOS_NOT_SUPPORTED (0x8000).
1202 */
1203 in[3] = HCI_WIRELESS_WWAN;
1204 status = tci_raw(dev, in, out);
1205 if (ACPI_FAILURE(status)) {
1206 pr_err("ACPI call to get WWAN status failed\n");
1207 return;
1208 }
1209
1210 if (out[0] != TOS_SUCCESS)
1211 return;
1212
1213 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1214 }
1215
toshiba_wwan_set(struct toshiba_acpi_dev * dev,u32 state)1216 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1217 {
1218 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1219 u32 out[TCI_WORDS];
1220 acpi_status status;
1221
1222 in[3] = HCI_WIRELESS_WWAN_STATUS;
1223 status = tci_raw(dev, in, out);
1224 if (ACPI_FAILURE(status)) {
1225 pr_err("ACPI call to set WWAN status failed\n");
1226 return -EIO;
1227 }
1228
1229 if (out[0] == TOS_NOT_SUPPORTED)
1230 return -ENODEV;
1231
1232 if (out[0] != TOS_SUCCESS)
1233 return -EIO;
1234
1235 /*
1236 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1237 * (de)activate the device, but some others need the
1238 * HCI_WIRELESS_WWAN_POWER call as well.
1239 */
1240 in[3] = HCI_WIRELESS_WWAN_POWER;
1241 status = tci_raw(dev, in, out);
1242 if (ACPI_FAILURE(status)) {
1243 pr_err("ACPI call to set WWAN power failed\n");
1244 return -EIO;
1245 }
1246
1247 if (out[0] == TOS_NOT_SUPPORTED)
1248 return -ENODEV;
1249
1250 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1251 }
1252
1253 /* Cooling Method */
toshiba_cooling_method_available(struct toshiba_acpi_dev * dev)1254 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1255 {
1256 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1257 u32 out[TCI_WORDS];
1258 acpi_status status;
1259
1260 dev->cooling_method_supported = 0;
1261 dev->max_cooling_method = 0;
1262
1263 status = tci_raw(dev, in, out);
1264 if (ACPI_FAILURE(status)) {
1265 pr_err("ACPI call to get Cooling Method failed\n");
1266 return;
1267 }
1268
1269 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1270 return;
1271
1272 dev->cooling_method_supported = 1;
1273 dev->max_cooling_method = out[3];
1274 }
1275
toshiba_cooling_method_get(struct toshiba_acpi_dev * dev,u32 * state)1276 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1277 {
1278 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1279
1280 if (result == TOS_FAILURE)
1281 pr_err("ACPI call to get Cooling Method failed\n");
1282
1283 if (result == TOS_NOT_SUPPORTED)
1284 return -ENODEV;
1285
1286 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1287 }
1288
toshiba_cooling_method_set(struct toshiba_acpi_dev * dev,u32 state)1289 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1290 {
1291 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1292
1293 if (result == TOS_FAILURE)
1294 pr_err("ACPI call to set Cooling Method failed\n");
1295
1296 if (result == TOS_NOT_SUPPORTED)
1297 return -ENODEV;
1298
1299 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1300 }
1301
1302 /* Battery charge control */
toshiba_battery_charge_mode_available(struct toshiba_acpi_dev * dev)1303 static void toshiba_battery_charge_mode_available(struct toshiba_acpi_dev *dev)
1304 {
1305 u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0 };
1306 u32 out[TCI_WORDS];
1307 acpi_status status;
1308
1309 dev->battery_charge_mode_supported = 0;
1310
1311 status = tci_raw(dev, in, out);
1312 if (ACPI_FAILURE(status)) {
1313 pr_err("ACPI call to get Battery Charge Mode failed\n");
1314 return;
1315 }
1316
1317 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1318 return;
1319
1320 dev->battery_charge_mode_supported = 1;
1321 }
1322
toshiba_battery_charge_mode_get(struct toshiba_acpi_dev * dev,u32 * state)1323 static int toshiba_battery_charge_mode_get(struct toshiba_acpi_dev *dev, u32 *state)
1324 {
1325 u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0x1 };
1326 u32 out[TCI_WORDS];
1327 int retries = 3;
1328
1329 do {
1330 acpi_status status = tci_raw(dev, in, out);
1331
1332 if (ACPI_FAILURE(status))
1333 pr_err("ACPI call to get Battery Charge Mode failed\n");
1334 switch (out[0]) {
1335 case TOS_SUCCESS:
1336 case TOS_SUCCESS2:
1337 *state = out[2];
1338 return 0;
1339 case TOS_NOT_SUPPORTED:
1340 return -ENODEV;
1341 case TOS_DATA_NOT_AVAILABLE:
1342 retries--;
1343 break;
1344 default:
1345 return -EIO;
1346 }
1347 } while (retries);
1348
1349 return -EIO;
1350 }
1351
toshiba_battery_charge_mode_set(struct toshiba_acpi_dev * dev,u32 state)1352 static int toshiba_battery_charge_mode_set(struct toshiba_acpi_dev *dev, u32 state)
1353 {
1354 u32 result = hci_write(dev, HCI_BATTERY_CHARGE_MODE, state);
1355
1356 if (result == TOS_FAILURE)
1357 pr_err("ACPI call to set Battery Charge Mode failed\n");
1358
1359 if (result == TOS_NOT_SUPPORTED)
1360 return -ENODEV;
1361
1362 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1363 }
1364
1365 /* Transflective Backlight */
get_tr_backlight_status(struct toshiba_acpi_dev * dev,u32 * status)1366 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1367 {
1368 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1369
1370 if (result == TOS_FAILURE)
1371 pr_err("ACPI call to get Transflective Backlight failed\n");
1372 else if (result == TOS_NOT_SUPPORTED)
1373 return -ENODEV;
1374
1375 return result == TOS_SUCCESS ? 0 : -EIO;
1376 }
1377
set_tr_backlight_status(struct toshiba_acpi_dev * dev,u32 status)1378 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1379 {
1380 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1381
1382 if (result == TOS_FAILURE)
1383 pr_err("ACPI call to set Transflective Backlight failed\n");
1384 else if (result == TOS_NOT_SUPPORTED)
1385 return -ENODEV;
1386
1387 return result == TOS_SUCCESS ? 0 : -EIO;
1388 }
1389
1390 static struct proc_dir_entry *toshiba_proc_dir;
1391
1392 /* LCD Brightness */
__get_lcd_brightness(struct toshiba_acpi_dev * dev)1393 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1394 {
1395 int brightness = 0;
1396 u32 result;
1397 u32 value;
1398
1399 if (dev->tr_backlight_supported) {
1400 int ret = get_tr_backlight_status(dev, &value);
1401
1402 if (ret)
1403 return ret;
1404 if (value)
1405 return 0;
1406 brightness++;
1407 }
1408
1409 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1410 if (result == TOS_FAILURE)
1411 pr_err("ACPI call to get LCD Brightness failed\n");
1412 else if (result == TOS_NOT_SUPPORTED)
1413 return -ENODEV;
1414
1415 return result == TOS_SUCCESS ?
1416 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1417 -EIO;
1418 }
1419
get_lcd_brightness(struct backlight_device * bd)1420 static int get_lcd_brightness(struct backlight_device *bd)
1421 {
1422 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1423
1424 return __get_lcd_brightness(dev);
1425 }
1426
lcd_proc_show(struct seq_file * m,void * v)1427 static int lcd_proc_show(struct seq_file *m, void *v)
1428 {
1429 struct toshiba_acpi_dev *dev = m->private;
1430 int levels;
1431 int value;
1432
1433 if (!dev->backlight_dev)
1434 return -ENODEV;
1435
1436 levels = dev->backlight_dev->props.max_brightness + 1;
1437 value = get_lcd_brightness(dev->backlight_dev);
1438 if (value < 0) {
1439 pr_err("Error reading LCD brightness\n");
1440 return value;
1441 }
1442
1443 seq_printf(m, "brightness: %d\n", value);
1444 seq_printf(m, "brightness_levels: %d\n", levels);
1445
1446 return 0;
1447 }
1448
lcd_proc_open(struct inode * inode,struct file * file)1449 static int lcd_proc_open(struct inode *inode, struct file *file)
1450 {
1451 return single_open(file, lcd_proc_show, pde_data(inode));
1452 }
1453
set_lcd_brightness(struct toshiba_acpi_dev * dev,int value)1454 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1455 {
1456 u32 result;
1457
1458 if (dev->tr_backlight_supported) {
1459 int ret = set_tr_backlight_status(dev, !value);
1460
1461 if (ret)
1462 return ret;
1463 if (value)
1464 value--;
1465 }
1466
1467 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1468 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1469 if (result == TOS_FAILURE)
1470 pr_err("ACPI call to set LCD Brightness failed\n");
1471 else if (result == TOS_NOT_SUPPORTED)
1472 return -ENODEV;
1473
1474 return result == TOS_SUCCESS ? 0 : -EIO;
1475 }
1476
set_lcd_status(struct backlight_device * bd)1477 static int set_lcd_status(struct backlight_device *bd)
1478 {
1479 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1480
1481 return set_lcd_brightness(dev, bd->props.brightness);
1482 }
1483
lcd_proc_write(struct file * file,const char __user * buf,size_t count,loff_t * pos)1484 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1485 size_t count, loff_t *pos)
1486 {
1487 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1488 char cmd[42];
1489 size_t len;
1490 int levels;
1491 int value;
1492
1493 len = min(count, sizeof(cmd) - 1);
1494 if (copy_from_user(cmd, buf, len))
1495 return -EFAULT;
1496 cmd[len] = '\0';
1497
1498 levels = dev->backlight_dev->props.max_brightness + 1;
1499 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1500 value < 0 && value > levels)
1501 return -EINVAL;
1502
1503 if (set_lcd_brightness(dev, value))
1504 return -EIO;
1505
1506 return count;
1507 }
1508
1509 static const struct proc_ops lcd_proc_ops = {
1510 .proc_open = lcd_proc_open,
1511 .proc_read = seq_read,
1512 .proc_lseek = seq_lseek,
1513 .proc_release = single_release,
1514 .proc_write = lcd_proc_write,
1515 };
1516
1517 /* Video-Out */
get_video_status(struct toshiba_acpi_dev * dev,u32 * status)1518 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1519 {
1520 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1521
1522 if (result == TOS_FAILURE)
1523 pr_err("ACPI call to get Video-Out failed\n");
1524 else if (result == TOS_NOT_SUPPORTED)
1525 return -ENODEV;
1526
1527 return result == TOS_SUCCESS ? 0 : -EIO;
1528 }
1529
video_proc_show(struct seq_file * m,void * v)1530 static int video_proc_show(struct seq_file *m, void *v)
1531 {
1532 struct toshiba_acpi_dev *dev = m->private;
1533 int is_lcd, is_crt, is_tv;
1534 u32 value;
1535
1536 if (get_video_status(dev, &value))
1537 return -EIO;
1538
1539 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1540 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1541 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1542
1543 seq_printf(m, "lcd_out: %d\n", is_lcd);
1544 seq_printf(m, "crt_out: %d\n", is_crt);
1545 seq_printf(m, "tv_out: %d\n", is_tv);
1546
1547 return 0;
1548 }
1549
video_proc_open(struct inode * inode,struct file * file)1550 static int video_proc_open(struct inode *inode, struct file *file)
1551 {
1552 return single_open(file, video_proc_show, pde_data(inode));
1553 }
1554
video_proc_write(struct file * file,const char __user * buf,size_t count,loff_t * pos)1555 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1556 size_t count, loff_t *pos)
1557 {
1558 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1559 char *buffer;
1560 char *cmd;
1561 int lcd_out = -1, crt_out = -1, tv_out = -1;
1562 int remain = count;
1563 int value;
1564 int ret;
1565 u32 video_out;
1566
1567 cmd = memdup_user_nul(buf, count);
1568 if (IS_ERR(cmd))
1569 return PTR_ERR(cmd);
1570
1571 buffer = cmd;
1572
1573 /*
1574 * Scan expression. Multiple expressions may be delimited with ;
1575 * NOTE: To keep scanning simple, invalid fields are ignored.
1576 */
1577 while (remain) {
1578 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1579 lcd_out = value & 1;
1580 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1581 crt_out = value & 1;
1582 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1583 tv_out = value & 1;
1584 /* Advance to one character past the next ; */
1585 do {
1586 ++buffer;
1587 --remain;
1588 } while (remain && *(buffer - 1) != ';');
1589 }
1590
1591 kfree(cmd);
1592
1593 ret = get_video_status(dev, &video_out);
1594 if (!ret) {
1595 unsigned int new_video_out = video_out;
1596
1597 if (lcd_out != -1)
1598 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1599 if (crt_out != -1)
1600 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1601 if (tv_out != -1)
1602 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1603 /*
1604 * To avoid unnecessary video disruption, only write the new
1605 * video setting if something changed.
1606 */
1607 if (new_video_out != video_out)
1608 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1609 }
1610
1611 return ret ? -EIO : count;
1612 }
1613
1614 static const struct proc_ops video_proc_ops = {
1615 .proc_open = video_proc_open,
1616 .proc_read = seq_read,
1617 .proc_lseek = seq_lseek,
1618 .proc_release = single_release,
1619 .proc_write = video_proc_write,
1620 };
1621
1622 /* Fan status */
get_fan_status(struct toshiba_acpi_dev * dev,u32 * status)1623 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1624 {
1625 u32 result = hci_read(dev, HCI_FAN, status);
1626
1627 if (result == TOS_FAILURE)
1628 pr_err("ACPI call to get Fan status failed\n");
1629 else if (result == TOS_NOT_SUPPORTED)
1630 return -ENODEV;
1631
1632 return result == TOS_SUCCESS ? 0 : -EIO;
1633 }
1634
set_fan_status(struct toshiba_acpi_dev * dev,u32 status)1635 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1636 {
1637 u32 result = hci_write(dev, HCI_FAN, status);
1638
1639 if (result == TOS_FAILURE)
1640 pr_err("ACPI call to set Fan status failed\n");
1641 else if (result == TOS_NOT_SUPPORTED)
1642 return -ENODEV;
1643
1644 return result == TOS_SUCCESS ? 0 : -EIO;
1645 }
1646
fan_proc_show(struct seq_file * m,void * v)1647 static int fan_proc_show(struct seq_file *m, void *v)
1648 {
1649 struct toshiba_acpi_dev *dev = m->private;
1650 u32 value;
1651
1652 if (get_fan_status(dev, &value))
1653 return -EIO;
1654
1655 seq_printf(m, "running: %d\n", (value > 0));
1656 seq_printf(m, "force_on: %d\n", dev->force_fan);
1657
1658 return 0;
1659 }
1660
fan_proc_open(struct inode * inode,struct file * file)1661 static int fan_proc_open(struct inode *inode, struct file *file)
1662 {
1663 return single_open(file, fan_proc_show, pde_data(inode));
1664 }
1665
fan_proc_write(struct file * file,const char __user * buf,size_t count,loff_t * pos)1666 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1667 size_t count, loff_t *pos)
1668 {
1669 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1670 char cmd[42];
1671 size_t len;
1672 int value;
1673
1674 len = min(count, sizeof(cmd) - 1);
1675 if (copy_from_user(cmd, buf, len))
1676 return -EFAULT;
1677 cmd[len] = '\0';
1678
1679 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1680 value != 0 && value != 1)
1681 return -EINVAL;
1682
1683 if (set_fan_status(dev, value))
1684 return -EIO;
1685
1686 dev->force_fan = value;
1687
1688 return count;
1689 }
1690
1691 static const struct proc_ops fan_proc_ops = {
1692 .proc_open = fan_proc_open,
1693 .proc_read = seq_read,
1694 .proc_lseek = seq_lseek,
1695 .proc_release = single_release,
1696 .proc_write = fan_proc_write,
1697 };
1698
1699 /* Fan RPM */
get_fan_rpm(struct toshiba_acpi_dev * dev,u32 * rpm)1700 static int get_fan_rpm(struct toshiba_acpi_dev *dev, u32 *rpm)
1701 {
1702 u32 in[TCI_WORDS] = { HCI_GET, HCI_FAN_RPM, 0, 1, 0, 0 };
1703 u32 out[TCI_WORDS];
1704 acpi_status status = tci_raw(dev, in, out);
1705
1706 if (ACPI_FAILURE(status)) {
1707 pr_err("ACPI call to get Fan speed failed\n");
1708 return -EIO;
1709 }
1710
1711 if (out[0] == TOS_NOT_SUPPORTED)
1712 return -ENODEV;
1713
1714 if (out[0] == TOS_SUCCESS) {
1715 *rpm = out[2];
1716 return 0;
1717 }
1718
1719 return -EIO;
1720 }
1721
keys_proc_show(struct seq_file * m,void * v)1722 static int keys_proc_show(struct seq_file *m, void *v)
1723 {
1724 struct toshiba_acpi_dev *dev = m->private;
1725
1726 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1727 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1728
1729 return 0;
1730 }
1731
keys_proc_open(struct inode * inode,struct file * file)1732 static int keys_proc_open(struct inode *inode, struct file *file)
1733 {
1734 return single_open(file, keys_proc_show, pde_data(inode));
1735 }
1736
keys_proc_write(struct file * file,const char __user * buf,size_t count,loff_t * pos)1737 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1738 size_t count, loff_t *pos)
1739 {
1740 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1741 char cmd[42];
1742 size_t len;
1743 int value;
1744
1745 len = min(count, sizeof(cmd) - 1);
1746 if (copy_from_user(cmd, buf, len))
1747 return -EFAULT;
1748 cmd[len] = '\0';
1749
1750 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1751 dev->key_event_valid = 0;
1752 else
1753 return -EINVAL;
1754
1755 return count;
1756 }
1757
1758 static const struct proc_ops keys_proc_ops = {
1759 .proc_open = keys_proc_open,
1760 .proc_read = seq_read,
1761 .proc_lseek = seq_lseek,
1762 .proc_release = single_release,
1763 .proc_write = keys_proc_write,
1764 };
1765
version_proc_show(struct seq_file * m,void * v)1766 static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1767 {
1768 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1769 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1770 return 0;
1771 }
1772
1773 /*
1774 * Proc and module init
1775 */
1776
1777 #define PROC_TOSHIBA "toshiba"
1778
create_toshiba_proc_entries(struct toshiba_acpi_dev * dev)1779 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1780 {
1781 if (dev->backlight_dev)
1782 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1783 &lcd_proc_ops, dev);
1784 if (dev->video_supported)
1785 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1786 &video_proc_ops, dev);
1787 if (dev->fan_supported)
1788 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1789 &fan_proc_ops, dev);
1790 if (dev->hotkey_dev)
1791 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1792 &keys_proc_ops, dev);
1793 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1794 version_proc_show, dev);
1795 }
1796
remove_toshiba_proc_entries(struct toshiba_acpi_dev * dev)1797 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1798 {
1799 if (dev->backlight_dev)
1800 remove_proc_entry("lcd", toshiba_proc_dir);
1801 if (dev->video_supported)
1802 remove_proc_entry("video", toshiba_proc_dir);
1803 if (dev->fan_supported)
1804 remove_proc_entry("fan", toshiba_proc_dir);
1805 if (dev->hotkey_dev)
1806 remove_proc_entry("keys", toshiba_proc_dir);
1807 remove_proc_entry("version", toshiba_proc_dir);
1808 }
1809
1810 static const struct backlight_ops toshiba_backlight_data = {
1811 .options = BL_CORE_SUSPENDRESUME,
1812 .get_brightness = get_lcd_brightness,
1813 .update_status = set_lcd_status,
1814 };
1815
1816 /* Keyboard backlight work */
1817 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1818
1819 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1820
1821 /*
1822 * Sysfs files
1823 */
1824 static DEVICE_STRING_ATTR_RO(version, 0444, TOSHIBA_ACPI_VERSION);
1825
fan_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1826 static ssize_t fan_store(struct device *dev,
1827 struct device_attribute *attr,
1828 const char *buf, size_t count)
1829 {
1830 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1831 int state;
1832 int ret;
1833
1834 ret = kstrtoint(buf, 0, &state);
1835 if (ret)
1836 return ret;
1837
1838 if (state != 0 && state != 1)
1839 return -EINVAL;
1840
1841 ret = set_fan_status(toshiba, state);
1842 if (ret)
1843 return ret;
1844
1845 return count;
1846 }
1847
fan_show(struct device * dev,struct device_attribute * attr,char * buf)1848 static ssize_t fan_show(struct device *dev,
1849 struct device_attribute *attr, char *buf)
1850 {
1851 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1852 u32 value;
1853 int ret;
1854
1855 ret = get_fan_status(toshiba, &value);
1856 if (ret)
1857 return ret;
1858
1859 return sprintf(buf, "%d\n", value);
1860 }
1861 static DEVICE_ATTR_RW(fan);
1862
kbd_backlight_mode_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1863 static ssize_t kbd_backlight_mode_store(struct device *dev,
1864 struct device_attribute *attr,
1865 const char *buf, size_t count)
1866 {
1867 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1868 int mode;
1869 int ret;
1870
1871
1872 ret = kstrtoint(buf, 0, &mode);
1873 if (ret)
1874 return ret;
1875
1876 /* Check for supported modes depending on keyboard backlight type */
1877 if (toshiba->kbd_type == 1) {
1878 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1879 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1880 return -EINVAL;
1881 } else if (toshiba->kbd_type == 2) {
1882 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1883 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1884 mode != SCI_KBD_MODE_OFF)
1885 return -EINVAL;
1886 }
1887
1888 /*
1889 * Set the Keyboard Backlight Mode where:
1890 * Auto - KBD backlight turns off automatically in given time
1891 * FN-Z - KBD backlight "toggles" when hotkey pressed
1892 * ON - KBD backlight is always on
1893 * OFF - KBD backlight is always off
1894 */
1895
1896 /* Only make a change if the actual mode has changed */
1897 if (toshiba->kbd_mode != mode) {
1898 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1899 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1900
1901 /* OR the "base time" to the actual method format */
1902 if (toshiba->kbd_type == 1) {
1903 /* Type 1 requires the current mode */
1904 time |= toshiba->kbd_mode;
1905 } else if (toshiba->kbd_type == 2) {
1906 /* Type 2 requires the desired mode */
1907 time |= mode;
1908 }
1909
1910 ret = toshiba_kbd_illum_status_set(toshiba, time);
1911 if (ret)
1912 return ret;
1913
1914 toshiba->kbd_mode = mode;
1915 toshiba_acpi->kbd_mode = mode;
1916
1917 /*
1918 * Some laptop models with the second generation backlit
1919 * keyboard (type 2) do not generate the keyboard backlight
1920 * changed event (0x92), and thus, the driver will never update
1921 * the sysfs entries.
1922 *
1923 * The event is generated right when changing the keyboard
1924 * backlight mode and the *notify function will set the
1925 * kbd_event_generated to true.
1926 *
1927 * In case the event is not generated, schedule the keyboard
1928 * backlight work to update the sysfs entries and emulate the
1929 * event via genetlink.
1930 */
1931 if (toshiba->kbd_type == 2 &&
1932 !toshiba->kbd_event_generated)
1933 schedule_work(&kbd_bl_work);
1934 }
1935
1936 return count;
1937 }
1938
kbd_backlight_mode_show(struct device * dev,struct device_attribute * attr,char * buf)1939 static ssize_t kbd_backlight_mode_show(struct device *dev,
1940 struct device_attribute *attr,
1941 char *buf)
1942 {
1943 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1944 u32 time;
1945
1946 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1947 return -EIO;
1948
1949 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1950 }
1951 static DEVICE_ATTR_RW(kbd_backlight_mode);
1952
kbd_type_show(struct device * dev,struct device_attribute * attr,char * buf)1953 static ssize_t kbd_type_show(struct device *dev,
1954 struct device_attribute *attr, char *buf)
1955 {
1956 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1957
1958 return sprintf(buf, "%d\n", toshiba->kbd_type);
1959 }
1960 static DEVICE_ATTR_RO(kbd_type);
1961
available_kbd_modes_show(struct device * dev,struct device_attribute * attr,char * buf)1962 static ssize_t available_kbd_modes_show(struct device *dev,
1963 struct device_attribute *attr,
1964 char *buf)
1965 {
1966 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1967
1968 if (toshiba->kbd_type == 1)
1969 return sprintf(buf, "0x%x 0x%x\n",
1970 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1971
1972 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1973 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1974 }
1975 static DEVICE_ATTR_RO(available_kbd_modes);
1976
kbd_backlight_timeout_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)1977 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1978 struct device_attribute *attr,
1979 const char *buf, size_t count)
1980 {
1981 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1982 int time;
1983 int ret;
1984
1985 ret = kstrtoint(buf, 0, &time);
1986 if (ret)
1987 return ret;
1988
1989 /* Check for supported values depending on kbd_type */
1990 if (toshiba->kbd_type == 1) {
1991 if (time < 0 || time > 60)
1992 return -EINVAL;
1993 } else if (toshiba->kbd_type == 2) {
1994 if (time < 1 || time > 60)
1995 return -EINVAL;
1996 }
1997
1998 /* Set the Keyboard Backlight Timeout */
1999
2000 /* Only make a change if the actual timeout has changed */
2001 if (toshiba->kbd_time != time) {
2002 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
2003 time = time << HCI_MISC_SHIFT;
2004 /* OR the "base time" to the actual method format */
2005 if (toshiba->kbd_type == 1)
2006 time |= SCI_KBD_MODE_FNZ;
2007 else if (toshiba->kbd_type == 2)
2008 time |= SCI_KBD_MODE_AUTO;
2009
2010 ret = toshiba_kbd_illum_status_set(toshiba, time);
2011 if (ret)
2012 return ret;
2013
2014 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
2015 }
2016
2017 return count;
2018 }
2019
kbd_backlight_timeout_show(struct device * dev,struct device_attribute * attr,char * buf)2020 static ssize_t kbd_backlight_timeout_show(struct device *dev,
2021 struct device_attribute *attr,
2022 char *buf)
2023 {
2024 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2025 u32 time;
2026
2027 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
2028 return -EIO;
2029
2030 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
2031 }
2032 static DEVICE_ATTR_RW(kbd_backlight_timeout);
2033
touchpad_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2034 static ssize_t touchpad_store(struct device *dev,
2035 struct device_attribute *attr,
2036 const char *buf, size_t count)
2037 {
2038 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2039 int state;
2040 int ret;
2041
2042 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
2043 ret = kstrtoint(buf, 0, &state);
2044 if (ret)
2045 return ret;
2046 if (state != 0 && state != 1)
2047 return -EINVAL;
2048
2049 ret = toshiba_touchpad_set(toshiba, state);
2050 if (ret)
2051 return ret;
2052
2053 return count;
2054 }
2055
touchpad_show(struct device * dev,struct device_attribute * attr,char * buf)2056 static ssize_t touchpad_show(struct device *dev,
2057 struct device_attribute *attr, char *buf)
2058 {
2059 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2060 u32 state;
2061 int ret;
2062
2063 ret = toshiba_touchpad_get(toshiba, &state);
2064 if (ret < 0)
2065 return ret;
2066
2067 return sprintf(buf, "%i\n", state);
2068 }
2069 static DEVICE_ATTR_RW(touchpad);
2070
usb_sleep_charge_show(struct device * dev,struct device_attribute * attr,char * buf)2071 static ssize_t usb_sleep_charge_show(struct device *dev,
2072 struct device_attribute *attr, char *buf)
2073 {
2074 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2075 u32 mode;
2076 int ret;
2077
2078 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2079 if (ret < 0)
2080 return ret;
2081
2082 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2083 }
2084
usb_sleep_charge_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2085 static ssize_t usb_sleep_charge_store(struct device *dev,
2086 struct device_attribute *attr,
2087 const char *buf, size_t count)
2088 {
2089 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2090 int state;
2091 u32 mode;
2092 int ret;
2093
2094 ret = kstrtoint(buf, 0, &state);
2095 if (ret)
2096 return ret;
2097 /*
2098 * Check for supported values, where:
2099 * 0 - Disabled
2100 * 1 - Alternate (Non USB conformant devices that require more power)
2101 * 2 - Auto (USB conformant devices)
2102 * 3 - Typical
2103 */
2104 if (state != 0 && state != 1 && state != 2 && state != 3)
2105 return -EINVAL;
2106
2107 /* Set the USB charging mode to internal value */
2108 mode = toshiba->usbsc_mode_base;
2109 if (state == 0)
2110 mode |= SCI_USB_CHARGE_DISABLED;
2111 else if (state == 1)
2112 mode |= SCI_USB_CHARGE_ALTERNATE;
2113 else if (state == 2)
2114 mode |= SCI_USB_CHARGE_AUTO;
2115 else if (state == 3)
2116 mode |= SCI_USB_CHARGE_TYPICAL;
2117
2118 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2119 if (ret)
2120 return ret;
2121
2122 return count;
2123 }
2124 static DEVICE_ATTR_RW(usb_sleep_charge);
2125
sleep_functions_on_battery_show(struct device * dev,struct device_attribute * attr,char * buf)2126 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2127 struct device_attribute *attr,
2128 char *buf)
2129 {
2130 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2131 int bat_lvl, status;
2132 u32 state;
2133 int ret;
2134 int tmp;
2135
2136 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2137 if (ret < 0)
2138 return ret;
2139
2140 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2141 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2142 status = (tmp == 0x4) ? 1 : 0;
2143 /* Determine the battery level set */
2144 bat_lvl = state >> HCI_MISC_SHIFT;
2145
2146 return sprintf(buf, "%d %d\n", status, bat_lvl);
2147 }
2148
sleep_functions_on_battery_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2149 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2150 struct device_attribute *attr,
2151 const char *buf, size_t count)
2152 {
2153 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2154 u32 status;
2155 int value;
2156 int ret;
2157 int tmp;
2158
2159 ret = kstrtoint(buf, 0, &value);
2160 if (ret)
2161 return ret;
2162
2163 /*
2164 * Set the status of the function:
2165 * 0 - Disabled
2166 * 1-100 - Enabled
2167 */
2168 if (value < 0 || value > 100)
2169 return -EINVAL;
2170
2171 if (value == 0) {
2172 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2173 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2174 } else {
2175 tmp = value << HCI_MISC_SHIFT;
2176 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2177 }
2178 ret = toshiba_sleep_functions_status_set(toshiba, status);
2179 if (ret < 0)
2180 return ret;
2181
2182 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2183
2184 return count;
2185 }
2186 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2187
usb_rapid_charge_show(struct device * dev,struct device_attribute * attr,char * buf)2188 static ssize_t usb_rapid_charge_show(struct device *dev,
2189 struct device_attribute *attr, char *buf)
2190 {
2191 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2192 u32 state;
2193 int ret;
2194
2195 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2196 if (ret < 0)
2197 return ret;
2198
2199 return sprintf(buf, "%d\n", state);
2200 }
2201
usb_rapid_charge_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2202 static ssize_t usb_rapid_charge_store(struct device *dev,
2203 struct device_attribute *attr,
2204 const char *buf, size_t count)
2205 {
2206 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2207 int state;
2208 int ret;
2209
2210 ret = kstrtoint(buf, 0, &state);
2211 if (ret)
2212 return ret;
2213 if (state != 0 && state != 1)
2214 return -EINVAL;
2215
2216 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2217 if (ret)
2218 return ret;
2219
2220 return count;
2221 }
2222 static DEVICE_ATTR_RW(usb_rapid_charge);
2223
usb_sleep_music_show(struct device * dev,struct device_attribute * attr,char * buf)2224 static ssize_t usb_sleep_music_show(struct device *dev,
2225 struct device_attribute *attr, char *buf)
2226 {
2227 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2228 u32 state;
2229 int ret;
2230
2231 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2232 if (ret < 0)
2233 return ret;
2234
2235 return sprintf(buf, "%d\n", state);
2236 }
2237
usb_sleep_music_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2238 static ssize_t usb_sleep_music_store(struct device *dev,
2239 struct device_attribute *attr,
2240 const char *buf, size_t count)
2241 {
2242 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2243 int state;
2244 int ret;
2245
2246 ret = kstrtoint(buf, 0, &state);
2247 if (ret)
2248 return ret;
2249 if (state != 0 && state != 1)
2250 return -EINVAL;
2251
2252 ret = toshiba_usb_sleep_music_set(toshiba, state);
2253 if (ret)
2254 return ret;
2255
2256 return count;
2257 }
2258 static DEVICE_ATTR_RW(usb_sleep_music);
2259
kbd_function_keys_show(struct device * dev,struct device_attribute * attr,char * buf)2260 static ssize_t kbd_function_keys_show(struct device *dev,
2261 struct device_attribute *attr, char *buf)
2262 {
2263 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2264 int mode;
2265 int ret;
2266
2267 ret = toshiba_function_keys_get(toshiba, &mode);
2268 if (ret < 0)
2269 return ret;
2270
2271 return sprintf(buf, "%d\n", mode);
2272 }
2273
kbd_function_keys_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2274 static ssize_t kbd_function_keys_store(struct device *dev,
2275 struct device_attribute *attr,
2276 const char *buf, size_t count)
2277 {
2278 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2279 int mode;
2280 int ret;
2281
2282 ret = kstrtoint(buf, 0, &mode);
2283 if (ret)
2284 return ret;
2285 /*
2286 * Check for the function keys mode where:
2287 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2288 * 1 - Special functions (Opposite of the above setting)
2289 */
2290 if (mode != 0 && mode != 1)
2291 return -EINVAL;
2292
2293 ret = toshiba_function_keys_set(toshiba, mode);
2294 if (ret)
2295 return ret;
2296
2297 pr_info("Reboot for changes to KBD Function Keys to take effect");
2298
2299 return count;
2300 }
2301 static DEVICE_ATTR_RW(kbd_function_keys);
2302
panel_power_on_show(struct device * dev,struct device_attribute * attr,char * buf)2303 static ssize_t panel_power_on_show(struct device *dev,
2304 struct device_attribute *attr, char *buf)
2305 {
2306 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2307 u32 state;
2308 int ret;
2309
2310 ret = toshiba_panel_power_on_get(toshiba, &state);
2311 if (ret < 0)
2312 return ret;
2313
2314 return sprintf(buf, "%d\n", state);
2315 }
2316
panel_power_on_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2317 static ssize_t panel_power_on_store(struct device *dev,
2318 struct device_attribute *attr,
2319 const char *buf, size_t count)
2320 {
2321 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2322 int state;
2323 int ret;
2324
2325 ret = kstrtoint(buf, 0, &state);
2326 if (ret)
2327 return ret;
2328 if (state != 0 && state != 1)
2329 return -EINVAL;
2330
2331 ret = toshiba_panel_power_on_set(toshiba, state);
2332 if (ret)
2333 return ret;
2334
2335 pr_info("Reboot for changes to Panel Power ON to take effect");
2336
2337 return count;
2338 }
2339 static DEVICE_ATTR_RW(panel_power_on);
2340
usb_three_show(struct device * dev,struct device_attribute * attr,char * buf)2341 static ssize_t usb_three_show(struct device *dev,
2342 struct device_attribute *attr, char *buf)
2343 {
2344 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2345 u32 state;
2346 int ret;
2347
2348 ret = toshiba_usb_three_get(toshiba, &state);
2349 if (ret < 0)
2350 return ret;
2351
2352 return sprintf(buf, "%d\n", state);
2353 }
2354
usb_three_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2355 static ssize_t usb_three_store(struct device *dev,
2356 struct device_attribute *attr,
2357 const char *buf, size_t count)
2358 {
2359 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2360 int state;
2361 int ret;
2362
2363 ret = kstrtoint(buf, 0, &state);
2364 if (ret)
2365 return ret;
2366 /*
2367 * Check for USB 3 mode where:
2368 * 0 - Disabled (Acts like a USB 2 port, saving power)
2369 * 1 - Enabled
2370 */
2371 if (state != 0 && state != 1)
2372 return -EINVAL;
2373
2374 ret = toshiba_usb_three_set(toshiba, state);
2375 if (ret)
2376 return ret;
2377
2378 pr_info("Reboot for changes to USB 3 to take effect");
2379
2380 return count;
2381 }
2382 static DEVICE_ATTR_RW(usb_three);
2383
cooling_method_show(struct device * dev,struct device_attribute * attr,char * buf)2384 static ssize_t cooling_method_show(struct device *dev,
2385 struct device_attribute *attr, char *buf)
2386 {
2387 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2388 int state;
2389 int ret;
2390
2391 ret = toshiba_cooling_method_get(toshiba, &state);
2392 if (ret < 0)
2393 return ret;
2394
2395 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2396 }
2397
cooling_method_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)2398 static ssize_t cooling_method_store(struct device *dev,
2399 struct device_attribute *attr,
2400 const char *buf, size_t count)
2401 {
2402 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2403 int state;
2404 int ret;
2405
2406 ret = kstrtoint(buf, 0, &state);
2407 if (ret)
2408 return ret;
2409
2410 /*
2411 * Check for supported values
2412 * Depending on the laptop model, some only support these two:
2413 * 0 - Maximum Performance
2414 * 1 - Battery Optimized
2415 *
2416 * While some others support all three methods:
2417 * 0 - Maximum Performance
2418 * 1 - Performance
2419 * 2 - Battery Optimized
2420 */
2421 if (state < 0 || state > toshiba->max_cooling_method)
2422 return -EINVAL;
2423
2424 ret = toshiba_cooling_method_set(toshiba, state);
2425 if (ret)
2426 return ret;
2427
2428 return count;
2429 }
2430 static DEVICE_ATTR_RW(cooling_method);
2431
2432 static struct attribute *toshiba_attributes[] = {
2433 &dev_attr_version.attr.attr,
2434 &dev_attr_fan.attr,
2435 &dev_attr_kbd_backlight_mode.attr,
2436 &dev_attr_kbd_type.attr,
2437 &dev_attr_available_kbd_modes.attr,
2438 &dev_attr_kbd_backlight_timeout.attr,
2439 &dev_attr_touchpad.attr,
2440 &dev_attr_usb_sleep_charge.attr,
2441 &dev_attr_sleep_functions_on_battery.attr,
2442 &dev_attr_usb_rapid_charge.attr,
2443 &dev_attr_usb_sleep_music.attr,
2444 &dev_attr_kbd_function_keys.attr,
2445 &dev_attr_panel_power_on.attr,
2446 &dev_attr_usb_three.attr,
2447 &dev_attr_cooling_method.attr,
2448 NULL,
2449 };
2450
toshiba_sysfs_is_visible(struct kobject * kobj,struct attribute * attr,int idx)2451 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2452 struct attribute *attr, int idx)
2453 {
2454 struct device *dev = kobj_to_dev(kobj);
2455 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2456 bool exists = true;
2457
2458 if (attr == &dev_attr_fan.attr)
2459 exists = (drv->fan_supported) ? true : false;
2460 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2461 exists = (drv->kbd_illum_supported) ? true : false;
2462 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2463 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2464 else if (attr == &dev_attr_touchpad.attr)
2465 exists = (drv->touchpad_supported) ? true : false;
2466 else if (attr == &dev_attr_usb_sleep_charge.attr)
2467 exists = (drv->usb_sleep_charge_supported) ? true : false;
2468 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2469 exists = (drv->usb_sleep_charge_supported) ? true : false;
2470 else if (attr == &dev_attr_usb_rapid_charge.attr)
2471 exists = (drv->usb_rapid_charge_supported) ? true : false;
2472 else if (attr == &dev_attr_usb_sleep_music.attr)
2473 exists = (drv->usb_sleep_music_supported) ? true : false;
2474 else if (attr == &dev_attr_kbd_function_keys.attr)
2475 exists = (drv->kbd_function_keys_supported) ? true : false;
2476 else if (attr == &dev_attr_panel_power_on.attr)
2477 exists = (drv->panel_power_on_supported) ? true : false;
2478 else if (attr == &dev_attr_usb_three.attr)
2479 exists = (drv->usb_three_supported) ? true : false;
2480 else if (attr == &dev_attr_cooling_method.attr)
2481 exists = (drv->cooling_method_supported) ? true : false;
2482
2483 return exists ? attr->mode : 0;
2484 }
2485
2486 static const struct attribute_group toshiba_attr_group = {
2487 .is_visible = toshiba_sysfs_is_visible,
2488 .attrs = toshiba_attributes,
2489 };
2490
toshiba_acpi_kbd_bl_work(struct work_struct * work)2491 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2492 {
2493 /* Update the sysfs entries */
2494 if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2495 &toshiba_attr_group))
2496 pr_err("Unable to update sysfs entries\n");
2497
2498 /* Notify LED subsystem about keyboard backlight change */
2499 if (toshiba_acpi->kbd_type == 2 &&
2500 toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2501 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2502 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2503 LED_FULL : LED_OFF);
2504
2505 /* Emulate the keyboard backlight event */
2506 acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2507 dev_name(&toshiba_acpi->acpi_dev->dev),
2508 0x92, 0);
2509 }
2510
2511 /*
2512 * IIO device
2513 */
2514
2515 enum toshiba_iio_accel_chan {
2516 AXIS_X,
2517 AXIS_Y,
2518 AXIS_Z
2519 };
2520
toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)2521 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2522 {
2523 u32 xyval, zval;
2524 int ret;
2525
2526 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2527 if (ret < 0)
2528 return ret;
2529
2530 switch (chan) {
2531 case AXIS_X:
2532 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2533 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2534 case AXIS_Y:
2535 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2536 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2537 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2538 case AXIS_Z:
2539 return zval & HCI_ACCEL_DIRECTION_MASK ?
2540 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2541 }
2542
2543 return ret;
2544 }
2545
toshiba_iio_accel_read_raw(struct iio_dev * indio_dev,struct iio_chan_spec const * chan,int * val,int * val2,long mask)2546 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2547 struct iio_chan_spec const *chan,
2548 int *val, int *val2, long mask)
2549 {
2550 int ret;
2551
2552 switch (mask) {
2553 case IIO_CHAN_INFO_RAW:
2554 ret = toshiba_iio_accel_get_axis(chan->channel);
2555 if (ret == -EIO || ret == -ENODEV)
2556 return ret;
2557
2558 *val = ret;
2559
2560 return IIO_VAL_INT;
2561 }
2562
2563 return -EINVAL;
2564 }
2565
2566 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2567 .type = IIO_ACCEL, \
2568 .modified = 1, \
2569 .channel = chan, \
2570 .channel2 = IIO_MOD_##axis, \
2571 .output = 1, \
2572 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2573 }
2574
2575 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2576 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2577 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2578 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2579 };
2580
2581 static const struct iio_info toshiba_iio_accel_info = {
2582 .read_raw = &toshiba_iio_accel_read_raw,
2583 };
2584
2585 /*
2586 * Misc device
2587 */
toshiba_acpi_smm_bridge(SMMRegisters * regs)2588 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2589 {
2590 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2591 regs->edx, regs->esi, regs->edi };
2592 u32 out[TCI_WORDS];
2593 acpi_status status;
2594
2595 status = tci_raw(toshiba_acpi, in, out);
2596 if (ACPI_FAILURE(status)) {
2597 pr_err("ACPI call to query SMM registers failed\n");
2598 return -EIO;
2599 }
2600
2601 /* Fillout the SMM struct with the TCI call results */
2602 regs->eax = out[0];
2603 regs->ebx = out[1];
2604 regs->ecx = out[2];
2605 regs->edx = out[3];
2606 regs->esi = out[4];
2607 regs->edi = out[5];
2608
2609 return 0;
2610 }
2611
toshiba_acpi_ioctl(struct file * fp,unsigned int cmd,unsigned long arg)2612 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2613 unsigned long arg)
2614 {
2615 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2616 SMMRegisters regs;
2617 int ret;
2618
2619 if (!argp)
2620 return -EINVAL;
2621
2622 switch (cmd) {
2623 case TOSH_SMM:
2624 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2625 return -EFAULT;
2626 ret = toshiba_acpi_smm_bridge(®s);
2627 if (ret)
2628 return ret;
2629 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2630 return -EFAULT;
2631 break;
2632 case TOSHIBA_ACPI_SCI:
2633 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2634 return -EFAULT;
2635 /* Ensure we are being called with a SCI_{GET, SET} register */
2636 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2637 return -EINVAL;
2638 if (!sci_open(toshiba_acpi))
2639 return -EIO;
2640 ret = toshiba_acpi_smm_bridge(®s);
2641 sci_close(toshiba_acpi);
2642 if (ret)
2643 return ret;
2644 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2645 return -EFAULT;
2646 break;
2647 default:
2648 return -EINVAL;
2649 }
2650
2651 return 0;
2652 }
2653
2654 static const struct file_operations toshiba_acpi_fops = {
2655 .owner = THIS_MODULE,
2656 .unlocked_ioctl = toshiba_acpi_ioctl,
2657 .llseek = noop_llseek,
2658 };
2659
2660 /*
2661 * WWAN RFKill handlers
2662 */
toshiba_acpi_wwan_set_block(void * data,bool blocked)2663 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2664 {
2665 struct toshiba_acpi_dev *dev = data;
2666 int ret;
2667
2668 ret = toshiba_wireless_status(dev);
2669 if (ret)
2670 return ret;
2671
2672 if (!dev->killswitch)
2673 return 0;
2674
2675 return toshiba_wwan_set(dev, !blocked);
2676 }
2677
toshiba_acpi_wwan_poll(struct rfkill * rfkill,void * data)2678 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2679 {
2680 struct toshiba_acpi_dev *dev = data;
2681
2682 if (toshiba_wireless_status(dev))
2683 return;
2684
2685 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2686 }
2687
2688 static const struct rfkill_ops wwan_rfk_ops = {
2689 .set_block = toshiba_acpi_wwan_set_block,
2690 .poll = toshiba_acpi_wwan_poll,
2691 };
2692
toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev * dev)2693 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2694 {
2695 int ret = toshiba_wireless_status(dev);
2696
2697 if (ret)
2698 return ret;
2699
2700 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2701 &dev->acpi_dev->dev,
2702 RFKILL_TYPE_WWAN,
2703 &wwan_rfk_ops,
2704 dev);
2705 if (!dev->wwan_rfk) {
2706 pr_err("Unable to allocate WWAN rfkill device\n");
2707 return -ENOMEM;
2708 }
2709
2710 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2711
2712 ret = rfkill_register(dev->wwan_rfk);
2713 if (ret) {
2714 pr_err("Unable to register WWAN rfkill device\n");
2715 rfkill_destroy(dev->wwan_rfk);
2716 }
2717
2718 return ret;
2719 }
2720
2721 /*
2722 * Hotkeys
2723 */
toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev * dev)2724 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2725 {
2726 acpi_status status;
2727 u32 result;
2728
2729 status = acpi_evaluate_object(dev->acpi_dev->handle,
2730 "ENAB", NULL, NULL);
2731 if (ACPI_FAILURE(status))
2732 return -ENODEV;
2733
2734 /*
2735 * Enable quickstart buttons if supported.
2736 *
2737 * Enable the "Special Functions" mode only if they are
2738 * supported and if they are activated.
2739 */
2740 if (hci_hotkey_quickstart)
2741 result = hci_write(dev, HCI_HOTKEY_EVENT,
2742 HCI_HOTKEY_ENABLE_QUICKSTART);
2743 else if (dev->kbd_function_keys_supported && dev->special_functions)
2744 result = hci_write(dev, HCI_HOTKEY_EVENT,
2745 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2746 else
2747 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2748
2749 if (result == TOS_FAILURE)
2750 return -EIO;
2751 else if (result == TOS_NOT_SUPPORTED)
2752 return -ENODEV;
2753
2754 return 0;
2755 }
2756
toshiba_acpi_i8042_filter(unsigned char data,unsigned char str,struct serio * port)2757 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2758 struct serio *port)
2759 {
2760 if (str & I8042_STR_AUXDATA)
2761 return false;
2762
2763 if (unlikely(data == 0xe0))
2764 return false;
2765
2766 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2767 schedule_work(&toshiba_acpi->hotkey_work);
2768 return true;
2769 }
2770
2771 return false;
2772 }
2773
toshiba_acpi_hotkey_work(struct work_struct * work)2774 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2775 {
2776 acpi_handle ec_handle = ec_get_handle();
2777 acpi_status status;
2778
2779 if (!ec_handle)
2780 return;
2781
2782 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2783 if (ACPI_FAILURE(status))
2784 pr_err("ACPI NTFY method execution failed\n");
2785 }
2786
2787 /*
2788 * Returns hotkey scancode, or < 0 on failure.
2789 */
toshiba_acpi_query_hotkey(struct toshiba_acpi_dev * dev)2790 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2791 {
2792 unsigned long long value;
2793 acpi_status status;
2794
2795 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2796 NULL, &value);
2797 if (ACPI_FAILURE(status)) {
2798 pr_err("ACPI INFO method execution failed\n");
2799 return -EIO;
2800 }
2801
2802 return value;
2803 }
2804
toshiba_acpi_report_hotkey(struct toshiba_acpi_dev * dev,int scancode)2805 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2806 int scancode)
2807 {
2808 if (scancode == 0x100)
2809 return;
2810
2811 /* Act on key press; ignore key release */
2812 if (scancode & 0x80)
2813 return;
2814
2815 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2816 pr_info("Unknown key %x\n", scancode);
2817 }
2818
toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev * dev)2819 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2820 {
2821 if (dev->info_supported) {
2822 int scancode = toshiba_acpi_query_hotkey(dev);
2823
2824 if (scancode < 0) {
2825 pr_err("Failed to query hotkey event\n");
2826 } else if (scancode != 0) {
2827 toshiba_acpi_report_hotkey(dev, scancode);
2828 dev->key_event_valid = 1;
2829 dev->last_key_event = scancode;
2830 }
2831 } else if (dev->system_event_supported) {
2832 u32 result;
2833 u32 value;
2834 int retries = 3;
2835
2836 do {
2837 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2838 switch (result) {
2839 case TOS_SUCCESS:
2840 toshiba_acpi_report_hotkey(dev, (int)value);
2841 dev->key_event_valid = 1;
2842 dev->last_key_event = value;
2843 break;
2844 case TOS_NOT_SUPPORTED:
2845 /*
2846 * This is a workaround for an unresolved
2847 * issue on some machines where system events
2848 * sporadically become disabled.
2849 */
2850 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2851 if (result == TOS_SUCCESS)
2852 pr_notice("Re-enabled hotkeys\n");
2853 fallthrough;
2854 default:
2855 retries--;
2856 break;
2857 }
2858 } while (retries && result != TOS_FIFO_EMPTY);
2859 }
2860 }
2861
toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev * dev)2862 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2863 {
2864 const struct key_entry *keymap = toshiba_acpi_keymap;
2865 acpi_handle ec_handle;
2866 int error;
2867
2868 if (disable_hotkeys) {
2869 pr_info("Hotkeys disabled by module parameter\n");
2870 return 0;
2871 }
2872
2873 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2874 pr_info("WMI event detected, hotkeys will not be monitored\n");
2875 return 0;
2876 }
2877
2878 error = toshiba_acpi_enable_hotkeys(dev);
2879 if (error)
2880 return error;
2881
2882 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2883 pr_notice("Unable to query Hotkey Event Type\n");
2884
2885 dev->hotkey_dev = input_allocate_device();
2886 if (!dev->hotkey_dev)
2887 return -ENOMEM;
2888
2889 dev->hotkey_dev->name = "Toshiba input device";
2890 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2891 dev->hotkey_dev->id.bustype = BUS_HOST;
2892 dev->hotkey_dev->dev.parent = &dev->acpi_dev->dev;
2893
2894 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2895 !dev->kbd_function_keys_supported)
2896 keymap = toshiba_acpi_keymap;
2897 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2898 dev->kbd_function_keys_supported)
2899 keymap = toshiba_acpi_alt_keymap;
2900 else
2901 pr_info("Unknown event type received %x\n",
2902 dev->hotkey_event_type);
2903 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2904 if (error)
2905 goto err_free_dev;
2906
2907 /*
2908 * For some machines the SCI responsible for providing hotkey
2909 * notification doesn't fire. We can trigger the notification
2910 * whenever the Fn key is pressed using the NTFY method, if
2911 * supported, so if it's present set up an i8042 key filter
2912 * for this purpose.
2913 */
2914 ec_handle = ec_get_handle();
2915 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2916 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2917
2918 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2919 if (error) {
2920 pr_err("Error installing key filter\n");
2921 goto err_free_dev;
2922 }
2923
2924 dev->ntfy_supported = 1;
2925 }
2926
2927 /*
2928 * Determine hotkey query interface. Prefer using the INFO
2929 * method when it is available.
2930 */
2931 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2932 dev->info_supported = 1;
2933 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2934 dev->system_event_supported = 1;
2935
2936 if (!dev->info_supported && !dev->system_event_supported) {
2937 pr_warn("No hotkey query interface found\n");
2938 error = -EINVAL;
2939 goto err_remove_filter;
2940 }
2941
2942 error = input_register_device(dev->hotkey_dev);
2943 if (error) {
2944 pr_info("Unable to register input device\n");
2945 goto err_remove_filter;
2946 }
2947
2948 return 0;
2949
2950 err_remove_filter:
2951 if (dev->ntfy_supported)
2952 i8042_remove_filter(toshiba_acpi_i8042_filter);
2953 err_free_dev:
2954 input_free_device(dev->hotkey_dev);
2955 dev->hotkey_dev = NULL;
2956 return error;
2957 }
2958
toshiba_acpi_setup_backlight(struct toshiba_acpi_dev * dev)2959 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2960 {
2961 struct backlight_properties props;
2962 int brightness;
2963 int ret;
2964
2965 /*
2966 * Some machines don't support the backlight methods at all, and
2967 * others support it read-only. Either of these is pretty useless,
2968 * so only register the backlight device if the backlight method
2969 * supports both reads and writes.
2970 */
2971 brightness = __get_lcd_brightness(dev);
2972 if (brightness < 0)
2973 return 0;
2974 /*
2975 * If transflective backlight is supported and the brightness is zero
2976 * (lowest brightness level), the set_lcd_brightness function will
2977 * activate the transflective backlight, making the LCD appear to be
2978 * turned off, simply increment the brightness level to avoid that.
2979 */
2980 if (dev->tr_backlight_supported && brightness == 0)
2981 brightness++;
2982 ret = set_lcd_brightness(dev, brightness);
2983 if (ret) {
2984 pr_debug("Backlight method is read-only, disabling backlight support\n");
2985 return 0;
2986 }
2987
2988 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2989 return 0;
2990
2991 memset(&props, 0, sizeof(props));
2992 props.type = BACKLIGHT_PLATFORM;
2993 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2994
2995 /* Adding an extra level and having 0 change to transflective mode */
2996 if (dev->tr_backlight_supported)
2997 props.max_brightness++;
2998
2999 dev->backlight_dev = backlight_device_register("toshiba",
3000 &dev->acpi_dev->dev,
3001 dev,
3002 &toshiba_backlight_data,
3003 &props);
3004 if (IS_ERR(dev->backlight_dev)) {
3005 ret = PTR_ERR(dev->backlight_dev);
3006 pr_err("Could not register toshiba backlight device\n");
3007 dev->backlight_dev = NULL;
3008 return ret;
3009 }
3010
3011 dev->backlight_dev->props.brightness = brightness;
3012 return 0;
3013 }
3014
3015 /* HWMON support for fan */
3016 #if IS_ENABLED(CONFIG_HWMON)
toshiba_acpi_hwmon_is_visible(const void * drvdata,enum hwmon_sensor_types type,u32 attr,int channel)3017 static umode_t toshiba_acpi_hwmon_is_visible(const void *drvdata,
3018 enum hwmon_sensor_types type,
3019 u32 attr, int channel)
3020 {
3021 return 0444;
3022 }
3023
toshiba_acpi_hwmon_read(struct device * dev,enum hwmon_sensor_types type,u32 attr,int channel,long * val)3024 static int toshiba_acpi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
3025 u32 attr, int channel, long *val)
3026 {
3027 /*
3028 * There is only a single channel and single attribute (for the
3029 * fan) at this point.
3030 * This can be replaced with more advanced logic in the future,
3031 * should the need arise.
3032 */
3033 if (type == hwmon_fan && channel == 0 && attr == hwmon_fan_input) {
3034 u32 value;
3035 int ret;
3036
3037 ret = get_fan_rpm(toshiba_acpi, &value);
3038 if (ret)
3039 return ret;
3040
3041 *val = value;
3042 return 0;
3043 }
3044 return -EOPNOTSUPP;
3045 }
3046
3047 static const struct hwmon_channel_info * const toshiba_acpi_hwmon_info[] = {
3048 HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT),
3049 NULL
3050 };
3051
3052 static const struct hwmon_ops toshiba_acpi_hwmon_ops = {
3053 .is_visible = toshiba_acpi_hwmon_is_visible,
3054 .read = toshiba_acpi_hwmon_read,
3055 };
3056
3057 static const struct hwmon_chip_info toshiba_acpi_hwmon_chip_info = {
3058 .ops = &toshiba_acpi_hwmon_ops,
3059 .info = toshiba_acpi_hwmon_info,
3060 };
3061 #endif
3062
3063 /* ACPI battery hooking */
charge_control_end_threshold_show(struct device * device,struct device_attribute * attr,char * buf)3064 static ssize_t charge_control_end_threshold_show(struct device *device,
3065 struct device_attribute *attr,
3066 char *buf)
3067 {
3068 u32 state;
3069 int status;
3070
3071 if (toshiba_acpi == NULL) {
3072 pr_err("Toshiba ACPI object invalid\n");
3073 return -ENODEV;
3074 }
3075
3076 status = toshiba_battery_charge_mode_get(toshiba_acpi, &state);
3077
3078 if (status != 0)
3079 return status;
3080
3081 if (state == 1)
3082 return sprintf(buf, "80\n");
3083 else
3084 return sprintf(buf, "100\n");
3085 }
3086
charge_control_end_threshold_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)3087 static ssize_t charge_control_end_threshold_store(struct device *dev,
3088 struct device_attribute *attr,
3089 const char *buf,
3090 size_t count)
3091 {
3092 u32 value;
3093 int rval;
3094
3095 if (toshiba_acpi == NULL) {
3096 pr_err("Toshiba ACPI object invalid\n");
3097 return -ENODEV;
3098 }
3099
3100 rval = kstrtou32(buf, 10, &value);
3101 if (rval)
3102 return rval;
3103
3104 if (value < 1 || value > 100)
3105 return -EINVAL;
3106 rval = toshiba_battery_charge_mode_set(toshiba_acpi,
3107 (value < 90) ? 1 : 0);
3108 if (rval < 0)
3109 return rval;
3110 else
3111 return count;
3112 }
3113
3114 static DEVICE_ATTR_RW(charge_control_end_threshold);
3115
3116 static struct attribute *toshiba_acpi_battery_attrs[] = {
3117 &dev_attr_charge_control_end_threshold.attr,
3118 NULL,
3119 };
3120
3121 ATTRIBUTE_GROUPS(toshiba_acpi_battery);
3122
toshiba_acpi_battery_add(struct power_supply * battery,struct acpi_battery_hook * hook)3123 static int toshiba_acpi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
3124 {
3125 if (toshiba_acpi == NULL) {
3126 pr_err("Init order issue\n");
3127 return -ENODEV;
3128 }
3129 if (!toshiba_acpi->battery_charge_mode_supported)
3130 return -ENODEV;
3131 if (device_add_groups(&battery->dev, toshiba_acpi_battery_groups))
3132 return -ENODEV;
3133 return 0;
3134 }
3135
toshiba_acpi_battery_remove(struct power_supply * battery,struct acpi_battery_hook * hook)3136 static int toshiba_acpi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
3137 {
3138 device_remove_groups(&battery->dev, toshiba_acpi_battery_groups);
3139 return 0;
3140 }
3141
3142 static struct acpi_battery_hook battery_hook = {
3143 .add_battery = toshiba_acpi_battery_add,
3144 .remove_battery = toshiba_acpi_battery_remove,
3145 .name = "Toshiba Battery Extension",
3146 };
3147
print_supported_features(struct toshiba_acpi_dev * dev)3148 static void print_supported_features(struct toshiba_acpi_dev *dev)
3149 {
3150 pr_info("Supported laptop features:");
3151
3152 if (dev->hotkey_dev)
3153 pr_cont(" hotkeys");
3154 if (dev->backlight_dev)
3155 pr_cont(" backlight");
3156 if (dev->video_supported)
3157 pr_cont(" video-out");
3158 if (dev->fan_supported)
3159 pr_cont(" fan");
3160 if (dev->fan_rpm_supported)
3161 pr_cont(" fan-rpm");
3162 if (dev->tr_backlight_supported)
3163 pr_cont(" transflective-backlight");
3164 if (dev->illumination_supported)
3165 pr_cont(" illumination");
3166 if (dev->kbd_illum_supported)
3167 pr_cont(" keyboard-backlight");
3168 if (dev->touchpad_supported)
3169 pr_cont(" touchpad");
3170 if (dev->eco_supported)
3171 pr_cont(" eco-led");
3172 if (dev->accelerometer_supported)
3173 pr_cont(" accelerometer-axes");
3174 if (dev->usb_sleep_charge_supported)
3175 pr_cont(" usb-sleep-charge");
3176 if (dev->usb_rapid_charge_supported)
3177 pr_cont(" usb-rapid-charge");
3178 if (dev->usb_sleep_music_supported)
3179 pr_cont(" usb-sleep-music");
3180 if (dev->kbd_function_keys_supported)
3181 pr_cont(" special-function-keys");
3182 if (dev->panel_power_on_supported)
3183 pr_cont(" panel-power-on");
3184 if (dev->usb_three_supported)
3185 pr_cont(" usb3");
3186 if (dev->wwan_supported)
3187 pr_cont(" wwan");
3188 if (dev->cooling_method_supported)
3189 pr_cont(" cooling-method");
3190 if (dev->battery_charge_mode_supported)
3191 pr_cont(" battery-charge-mode");
3192
3193 pr_cont("\n");
3194 }
3195
toshiba_acpi_remove(struct acpi_device * acpi_dev)3196 static void toshiba_acpi_remove(struct acpi_device *acpi_dev)
3197 {
3198 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3199
3200 misc_deregister(&dev->miscdev);
3201
3202 remove_toshiba_proc_entries(dev);
3203
3204 #if IS_ENABLED(CONFIG_HWMON)
3205 if (dev->hwmon_device)
3206 hwmon_device_unregister(dev->hwmon_device);
3207 #endif
3208
3209 if (dev->accelerometer_supported && dev->indio_dev) {
3210 iio_device_unregister(dev->indio_dev);
3211 iio_device_free(dev->indio_dev);
3212 }
3213
3214 if (dev->sysfs_created)
3215 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3216 &toshiba_attr_group);
3217
3218 if (dev->ntfy_supported) {
3219 i8042_remove_filter(toshiba_acpi_i8042_filter);
3220 cancel_work_sync(&dev->hotkey_work);
3221 }
3222
3223 if (dev->hotkey_dev)
3224 input_unregister_device(dev->hotkey_dev);
3225
3226 backlight_device_unregister(dev->backlight_dev);
3227
3228 led_classdev_unregister(&dev->led_dev);
3229 led_classdev_unregister(&dev->kbd_led);
3230 led_classdev_unregister(&dev->eco_led);
3231
3232 if (dev->wwan_rfk) {
3233 rfkill_unregister(dev->wwan_rfk);
3234 rfkill_destroy(dev->wwan_rfk);
3235 }
3236
3237 if (dev->battery_charge_mode_supported)
3238 battery_hook_unregister(&battery_hook);
3239
3240 if (toshiba_acpi)
3241 toshiba_acpi = NULL;
3242
3243 kfree(dev);
3244 }
3245
find_hci_method(acpi_handle handle)3246 static const char *find_hci_method(acpi_handle handle)
3247 {
3248 if (acpi_has_method(handle, "GHCI"))
3249 return "GHCI";
3250
3251 if (acpi_has_method(handle, "SPFC"))
3252 return "SPFC";
3253
3254 return NULL;
3255 }
3256
3257 /*
3258 * Some Toshibas have a broken acpi-video interface for brightness control,
3259 * these are quirked in drivers/acpi/video_detect.c to use the GPU native
3260 * (/sys/class/backlight/intel_backlight) instead.
3261 * But these need a HCI_SET call to actually turn the panel back on at resume,
3262 * without this call the screen stays black at resume.
3263 * Either HCI_LCD_BRIGHTNESS (used by acpi_video's _BCM) or HCI_PANEL_POWER_ON
3264 * works. toshiba_acpi_resume() uses HCI_PANEL_POWER_ON to avoid changing
3265 * the configured brightness level.
3266 */
3267 #define QUIRK_TURN_ON_PANEL_ON_RESUME BIT(0)
3268 /*
3269 * Some Toshibas use "quickstart" keys. On these, HCI_HOTKEY_EVENT must use
3270 * the value HCI_HOTKEY_ENABLE_QUICKSTART.
3271 */
3272 #define QUIRK_HCI_HOTKEY_QUICKSTART BIT(1)
3273
3274 static const struct dmi_system_id toshiba_dmi_quirks[] __initconst = {
3275 {
3276 /* Toshiba Portégé R700 */
3277 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3278 .matches = {
3279 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3280 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
3281 },
3282 .driver_data = (void *)QUIRK_TURN_ON_PANEL_ON_RESUME,
3283 },
3284 {
3285 /* Toshiba Satellite/Portégé R830 */
3286 /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
3287 /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3288 .matches = {
3289 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3290 DMI_MATCH(DMI_PRODUCT_NAME, "R830"),
3291 },
3292 .driver_data = (void *)QUIRK_TURN_ON_PANEL_ON_RESUME,
3293 },
3294 {
3295 /* Toshiba Satellite/Portégé Z830 */
3296 .matches = {
3297 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3298 DMI_MATCH(DMI_PRODUCT_NAME, "Z830"),
3299 },
3300 .driver_data = (void *)(QUIRK_TURN_ON_PANEL_ON_RESUME | QUIRK_HCI_HOTKEY_QUICKSTART),
3301 },
3302 { }
3303 };
3304
toshiba_acpi_add(struct acpi_device * acpi_dev)3305 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3306 {
3307 struct toshiba_acpi_dev *dev;
3308 const char *hci_method;
3309 u32 dummy;
3310 int ret = 0;
3311
3312 if (toshiba_acpi)
3313 return -EBUSY;
3314
3315 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3316 TOSHIBA_ACPI_VERSION);
3317
3318 hci_method = find_hci_method(acpi_dev->handle);
3319 if (!hci_method) {
3320 pr_err("HCI interface not found\n");
3321 return -ENODEV;
3322 }
3323
3324 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3325 if (!dev)
3326 return -ENOMEM;
3327 dev->acpi_dev = acpi_dev;
3328 dev->method_hci = hci_method;
3329 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3330 dev->miscdev.name = "toshiba_acpi";
3331 dev->miscdev.fops = &toshiba_acpi_fops;
3332
3333 ret = misc_register(&dev->miscdev);
3334 if (ret) {
3335 pr_err("Failed to register miscdevice\n");
3336 kfree(dev);
3337 return ret;
3338 }
3339
3340 acpi_dev->driver_data = dev;
3341 dev_set_drvdata(&acpi_dev->dev, dev);
3342
3343 /* Query the BIOS for supported features */
3344
3345 /*
3346 * The "Special Functions" are always supported by the laptops
3347 * with the new keyboard layout, query for its presence to help
3348 * determine the keymap layout to use.
3349 */
3350 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3351 dev->kbd_function_keys_supported = !ret;
3352
3353 dev->hotkey_event_type = 0;
3354 if (toshiba_acpi_setup_keyboard(dev))
3355 pr_info("Unable to activate hotkeys\n");
3356
3357 /* Determine whether or not BIOS supports transflective backlight */
3358 ret = get_tr_backlight_status(dev, &dummy);
3359 dev->tr_backlight_supported = !ret;
3360
3361 ret = toshiba_acpi_setup_backlight(dev);
3362 if (ret)
3363 goto error;
3364
3365 toshiba_illumination_available(dev);
3366 if (dev->illumination_supported) {
3367 dev->led_dev.name = "toshiba::illumination";
3368 dev->led_dev.max_brightness = 1;
3369 dev->led_dev.brightness_set = toshiba_illumination_set;
3370 dev->led_dev.brightness_get = toshiba_illumination_get;
3371 led_classdev_register(&acpi_dev->dev, &dev->led_dev);
3372 }
3373
3374 toshiba_eco_mode_available(dev);
3375 if (dev->eco_supported) {
3376 dev->eco_led.name = "toshiba::eco_mode";
3377 dev->eco_led.max_brightness = 1;
3378 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3379 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3380 led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led);
3381 }
3382
3383 toshiba_kbd_illum_available(dev);
3384 /*
3385 * Only register the LED if KBD illumination is supported
3386 * and the keyboard backlight operation mode is set to FN-Z
3387 * or we detect a second gen keyboard backlight
3388 */
3389 if (dev->kbd_illum_supported &&
3390 (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3391 dev->kbd_led.name = "toshiba::kbd_backlight";
3392 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3393 dev->kbd_led.max_brightness = 1;
3394 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3395 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3396 led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led);
3397 }
3398
3399 ret = toshiba_touchpad_get(dev, &dummy);
3400 dev->touchpad_supported = !ret;
3401
3402 toshiba_accelerometer_available(dev);
3403 if (dev->accelerometer_supported) {
3404 dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev));
3405 if (!dev->indio_dev) {
3406 pr_err("Unable to allocate iio device\n");
3407 goto iio_error;
3408 }
3409
3410 pr_info("Registering Toshiba accelerometer iio device\n");
3411
3412 dev->indio_dev->info = &toshiba_iio_accel_info;
3413 dev->indio_dev->name = "Toshiba accelerometer";
3414 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3415 dev->indio_dev->channels = toshiba_iio_accel_channels;
3416 dev->indio_dev->num_channels =
3417 ARRAY_SIZE(toshiba_iio_accel_channels);
3418
3419 ret = iio_device_register(dev->indio_dev);
3420 if (ret < 0) {
3421 pr_err("Unable to register iio device\n");
3422 iio_device_free(dev->indio_dev);
3423 }
3424 }
3425 iio_error:
3426
3427 toshiba_usb_sleep_charge_available(dev);
3428
3429 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3430 dev->usb_rapid_charge_supported = !ret;
3431
3432 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3433 dev->usb_sleep_music_supported = !ret;
3434
3435 ret = toshiba_panel_power_on_get(dev, &dummy);
3436 dev->panel_power_on_supported = !ret;
3437
3438 ret = toshiba_usb_three_get(dev, &dummy);
3439 dev->usb_three_supported = !ret;
3440
3441 ret = get_video_status(dev, &dummy);
3442 dev->video_supported = !ret;
3443
3444 ret = get_fan_status(dev, &dummy);
3445 dev->fan_supported = !ret;
3446
3447 ret = get_fan_rpm(dev, &dummy);
3448 dev->fan_rpm_supported = !ret;
3449
3450 #if IS_ENABLED(CONFIG_HWMON)
3451 if (dev->fan_rpm_supported) {
3452 dev->hwmon_device = hwmon_device_register_with_info(
3453 &dev->acpi_dev->dev, "toshiba_acpi_sensors", NULL,
3454 &toshiba_acpi_hwmon_chip_info, NULL);
3455 if (IS_ERR(dev->hwmon_device)) {
3456 dev->hwmon_device = NULL;
3457 pr_warn("unable to register hwmon device, skipping\n");
3458 }
3459 }
3460 #endif
3461
3462 toshiba_wwan_available(dev);
3463 if (dev->wwan_supported)
3464 toshiba_acpi_setup_wwan_rfkill(dev);
3465
3466 toshiba_cooling_method_available(dev);
3467
3468 toshiba_battery_charge_mode_available(dev);
3469
3470 print_supported_features(dev);
3471
3472 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3473 &toshiba_attr_group);
3474 if (ret) {
3475 dev->sysfs_created = 0;
3476 goto error;
3477 }
3478 dev->sysfs_created = !ret;
3479
3480 create_toshiba_proc_entries(dev);
3481
3482 toshiba_acpi = dev;
3483
3484 /*
3485 * As the battery hook relies on the static variable toshiba_acpi being
3486 * set, this must be done after toshiba_acpi is assigned.
3487 */
3488 if (dev->battery_charge_mode_supported)
3489 battery_hook_register(&battery_hook);
3490
3491 return 0;
3492
3493 error:
3494 toshiba_acpi_remove(acpi_dev);
3495 return ret;
3496 }
3497
toshiba_acpi_notify(struct acpi_device * acpi_dev,u32 event)3498 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3499 {
3500 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3501
3502 switch (event) {
3503 case 0x80: /* Hotkeys and some system events */
3504 /*
3505 * Machines with this WMI GUID aren't supported due to bugs in
3506 * their AML.
3507 *
3508 * Return silently to avoid triggering a netlink event.
3509 */
3510 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3511 return;
3512 toshiba_acpi_process_hotkeys(dev);
3513 break;
3514 case 0x81: /* Dock events */
3515 case 0x82:
3516 case 0x83:
3517 pr_info("Dock event received %x\n", event);
3518 break;
3519 case 0x88: /* Thermal events */
3520 pr_info("Thermal event received\n");
3521 break;
3522 case 0x8f: /* LID closed */
3523 case 0x90: /* LID is closed and Dock has been ejected */
3524 break;
3525 case 0x8c: /* SATA power events */
3526 case 0x8b:
3527 pr_info("SATA power event received %x\n", event);
3528 break;
3529 case 0x92: /* Keyboard backlight mode changed */
3530 dev->kbd_event_generated = true;
3531 /* Update sysfs entries */
3532 if (sysfs_update_group(&acpi_dev->dev.kobj,
3533 &toshiba_attr_group))
3534 pr_err("Unable to update sysfs entries\n");
3535 /* Notify LED subsystem about keyboard backlight change */
3536 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3537 led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3538 (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3539 LED_FULL : LED_OFF);
3540 break;
3541 case 0x8e: /* Power button pressed */
3542 break;
3543 case 0x85: /* Unknown */
3544 case 0x8d: /* Unknown */
3545 case 0x94: /* Unknown */
3546 case 0x95: /* Unknown */
3547 default:
3548 pr_info("Unknown event received %x\n", event);
3549 break;
3550 }
3551
3552 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3553 dev_name(&acpi_dev->dev),
3554 event, (event == 0x80) ?
3555 dev->last_key_event : 0);
3556 }
3557
3558 #ifdef CONFIG_PM_SLEEP
toshiba_acpi_suspend(struct device * device)3559 static int toshiba_acpi_suspend(struct device *device)
3560 {
3561 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3562
3563 if (dev->hotkey_dev) {
3564 u32 result;
3565
3566 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3567 if (result != TOS_SUCCESS)
3568 pr_info("Unable to disable hotkeys\n");
3569 }
3570
3571 return 0;
3572 }
3573
toshiba_acpi_resume(struct device * device)3574 static int toshiba_acpi_resume(struct device *device)
3575 {
3576 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3577
3578 if (dev->hotkey_dev) {
3579 if (toshiba_acpi_enable_hotkeys(dev))
3580 pr_info("Unable to re-enable hotkeys\n");
3581 }
3582
3583 if (dev->wwan_rfk) {
3584 if (!toshiba_wireless_status(dev))
3585 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3586 }
3587
3588 if (turn_on_panel_on_resume)
3589 hci_write(dev, HCI_PANEL_POWER_ON, 1);
3590
3591 return 0;
3592 }
3593 #endif
3594
3595 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3596 toshiba_acpi_suspend, toshiba_acpi_resume);
3597
3598 static struct acpi_driver toshiba_acpi_driver = {
3599 .name = "Toshiba ACPI driver",
3600 .ids = toshiba_device_ids,
3601 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3602 .ops = {
3603 .add = toshiba_acpi_add,
3604 .remove = toshiba_acpi_remove,
3605 .notify = toshiba_acpi_notify,
3606 },
3607 .drv.pm = &toshiba_acpi_pm,
3608 };
3609
toshiba_dmi_init(void)3610 static void __init toshiba_dmi_init(void)
3611 {
3612 const struct dmi_system_id *dmi_id;
3613 long quirks = 0;
3614
3615 dmi_id = dmi_first_match(toshiba_dmi_quirks);
3616 if (dmi_id)
3617 quirks = (long)dmi_id->driver_data;
3618
3619 if (turn_on_panel_on_resume == -1)
3620 turn_on_panel_on_resume = !!(quirks & QUIRK_TURN_ON_PANEL_ON_RESUME);
3621
3622 if (hci_hotkey_quickstart == -1)
3623 hci_hotkey_quickstart = !!(quirks & QUIRK_HCI_HOTKEY_QUICKSTART);
3624 }
3625
toshiba_acpi_init(void)3626 static int __init toshiba_acpi_init(void)
3627 {
3628 int ret;
3629
3630 toshiba_dmi_init();
3631 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3632 if (!toshiba_proc_dir) {
3633 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3634 return -ENODEV;
3635 }
3636
3637 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3638 if (ret) {
3639 pr_err("Failed to register ACPI driver: %d\n", ret);
3640 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3641 }
3642
3643 return ret;
3644 }
3645
toshiba_acpi_exit(void)3646 static void __exit toshiba_acpi_exit(void)
3647 {
3648 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3649 if (toshiba_proc_dir)
3650 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3651 }
3652
3653 module_init(toshiba_acpi_init);
3654 module_exit(toshiba_acpi_exit);
3655