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