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Linux/drivers/platform/x86/toshiba_acpi.c

  1 /*
  2  *  toshiba_acpi.c - Toshiba Laptop ACPI Extras
  3  *
  4  *  Copyright (C) 2002-2004 John Belmonte
  5  *  Copyright (C) 2008 Philip Langdale
  6  *  Copyright (C) 2010 Pierre Ducroquet
  7  *  Copyright (C) 2014-2016 Azael Avalos
  8  *
  9  *  This program is free software; you can redistribute it and/or modify
 10  *  it under the terms of the GNU General Public License as published by
 11  *  the Free Software Foundation; either version 2 of the License, or
 12  *  (at your option) any later version.
 13  *
 14  *  This program is distributed in the hope that it will be useful,
 15  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 16  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 17  *  GNU General Public License for more details.
 18  *
 19  *  The full GNU General Public License is included in this distribution in
 20  *  the file called "COPYING".
 21  *
 22  *  The devolpment page for this driver is located at
 23  *  http://memebeam.org/toys/ToshibaAcpiDriver.
 24  *
 25  *  Credits:
 26  *      Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
 27  *              engineering the Windows drivers
 28  *      Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
 29  *      Rob Miller - TV out and hotkeys help
 30  */
 31 
 32 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 33 
 34 #define TOSHIBA_ACPI_VERSION    "0.24"
 35 #define PROC_INTERFACE_VERSION  1
 36 
 37 #include <linux/kernel.h>
 38 #include <linux/module.h>
 39 #include <linux/moduleparam.h>
 40 #include <linux/init.h>
 41 #include <linux/types.h>
 42 #include <linux/proc_fs.h>
 43 #include <linux/seq_file.h>
 44 #include <linux/backlight.h>
 45 #include <linux/input.h>
 46 #include <linux/input/sparse-keymap.h>
 47 #include <linux/leds.h>
 48 #include <linux/slab.h>
 49 #include <linux/workqueue.h>
 50 #include <linux/i8042.h>
 51 #include <linux/acpi.h>
 52 #include <linux/dmi.h>
 53 #include <linux/uaccess.h>
 54 #include <linux/miscdevice.h>
 55 #include <linux/rfkill.h>
 56 #include <linux/iio/iio.h>
 57 #include <linux/toshiba.h>
 58 #include <acpi/video.h>
 59 
 60 MODULE_AUTHOR("John Belmonte");
 61 MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
 62 MODULE_LICENSE("GPL");
 63 
 64 #define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
 65 
 66 /* Scan code for Fn key on TOS1900 models */
 67 #define TOS1900_FN_SCAN         0x6e
 68 
 69 /* Toshiba ACPI method paths */
 70 #define METHOD_VIDEO_OUT        "\\_SB_.VALX.DSSX"
 71 
 72 /*
 73  * The Toshiba configuration interface is composed of the HCI and the SCI,
 74  * which are defined as follows:
 75  *
 76  * HCI is Toshiba's "Hardware Control Interface" which is supposed to
 77  * be uniform across all their models.  Ideally we would just call
 78  * dedicated ACPI methods instead of using this primitive interface.
 79  * However the ACPI methods seem to be incomplete in some areas (for
 80  * example they allow setting, but not reading, the LCD brightness value),
 81  * so this is still useful.
 82  *
 83  * SCI stands for "System Configuration Interface" which aim is to
 84  * conceal differences in hardware between different models.
 85  */
 86 
 87 #define TCI_WORDS                       6
 88 
 89 /* Operations */
 90 #define HCI_SET                         0xff00
 91 #define HCI_GET                         0xfe00
 92 #define SCI_OPEN                        0xf100
 93 #define SCI_CLOSE                       0xf200
 94 #define SCI_GET                         0xf300
 95 #define SCI_SET                         0xf400
 96 
 97 /* Return codes */
 98 #define TOS_SUCCESS                     0x0000
 99 #define TOS_SUCCESS2                    0x0001
100 #define TOS_OPEN_CLOSE_OK               0x0044
101 #define TOS_FAILURE                     0x1000
102 #define TOS_NOT_SUPPORTED               0x8000
103 #define TOS_ALREADY_OPEN                0x8100
104 #define TOS_NOT_OPENED                  0x8200
105 #define TOS_INPUT_DATA_ERROR            0x8300
106 #define TOS_WRITE_PROTECTED             0x8400
107 #define TOS_NOT_PRESENT                 0x8600
108 #define TOS_FIFO_EMPTY                  0x8c00
109 #define TOS_DATA_NOT_AVAILABLE          0x8d20
110 #define TOS_NOT_INITIALIZED             0x8d50
111 #define TOS_NOT_INSTALLED               0x8e00
112 
113 /* Registers */
114 #define HCI_FAN                         0x0004
115 #define HCI_TR_BACKLIGHT                0x0005
116 #define HCI_SYSTEM_EVENT                0x0016
117 #define HCI_VIDEO_OUT                   0x001c
118 #define HCI_HOTKEY_EVENT                0x001e
119 #define HCI_LCD_BRIGHTNESS              0x002a
120 #define HCI_WIRELESS                    0x0056
121 #define HCI_ACCELEROMETER               0x006d
122 #define HCI_COOLING_METHOD              0x007f
123 #define HCI_KBD_ILLUMINATION            0x0095
124 #define HCI_ECO_MODE                    0x0097
125 #define HCI_ACCELEROMETER2              0x00a6
126 #define HCI_SYSTEM_INFO                 0xc000
127 #define SCI_PANEL_POWER_ON              0x010d
128 #define SCI_ILLUMINATION                0x014e
129 #define SCI_USB_SLEEP_CHARGE            0x0150
130 #define SCI_KBD_ILLUM_STATUS            0x015c
131 #define SCI_USB_SLEEP_MUSIC             0x015e
132 #define SCI_USB_THREE                   0x0169
133 #define SCI_TOUCHPAD                    0x050e
134 #define SCI_KBD_FUNCTION_KEYS           0x0522
135 
136 /* Field definitions */
137 #define HCI_ACCEL_MASK                  0x7fff
138 #define HCI_ACCEL_DIRECTION_MASK        0x8000
139 #define HCI_HOTKEY_DISABLE              0x0b
140 #define HCI_HOTKEY_ENABLE               0x09
141 #define HCI_HOTKEY_SPECIAL_FUNCTIONS    0x10
142 #define HCI_LCD_BRIGHTNESS_BITS         3
143 #define HCI_LCD_BRIGHTNESS_SHIFT        (16-HCI_LCD_BRIGHTNESS_BITS)
144 #define HCI_LCD_BRIGHTNESS_LEVELS       (1 << HCI_LCD_BRIGHTNESS_BITS)
145 #define HCI_MISC_SHIFT                  0x10
146 #define HCI_SYSTEM_TYPE1                0x10
147 #define HCI_SYSTEM_TYPE2                0x11
148 #define HCI_VIDEO_OUT_LCD               0x1
149 #define HCI_VIDEO_OUT_CRT               0x2
150 #define HCI_VIDEO_OUT_TV                0x4
151 #define SCI_KBD_MODE_MASK               0x1f
152 #define SCI_KBD_MODE_FNZ                0x1
153 #define SCI_KBD_MODE_AUTO               0x2
154 #define SCI_KBD_MODE_ON                 0x8
155 #define SCI_KBD_MODE_OFF                0x10
156 #define SCI_KBD_TIME_MAX                0x3c001a
157 #define HCI_WIRELESS_STATUS             0x1
158 #define HCI_WIRELESS_WWAN               0x3
159 #define HCI_WIRELESS_WWAN_STATUS        0x2000
160 #define HCI_WIRELESS_WWAN_POWER         0x4000
161 #define SCI_USB_CHARGE_MODE_MASK        0xff
162 #define SCI_USB_CHARGE_DISABLED         0x00
163 #define SCI_USB_CHARGE_ALTERNATE        0x09
164 #define SCI_USB_CHARGE_TYPICAL          0x11
165 #define SCI_USB_CHARGE_AUTO             0x21
166 #define SCI_USB_CHARGE_BAT_MASK         0x7
167 #define SCI_USB_CHARGE_BAT_LVL_OFF      0x1
168 #define SCI_USB_CHARGE_BAT_LVL_ON       0x4
169 #define SCI_USB_CHARGE_BAT_LVL          0x0200
170 #define SCI_USB_CHARGE_RAPID_DSP        0x0300
171 
172 struct toshiba_acpi_dev {
173         struct acpi_device *acpi_dev;
174         const char *method_hci;
175         struct input_dev *hotkey_dev;
176         struct work_struct hotkey_work;
177         struct backlight_device *backlight_dev;
178         struct led_classdev led_dev;
179         struct led_classdev kbd_led;
180         struct led_classdev eco_led;
181         struct miscdevice miscdev;
182         struct rfkill *wwan_rfk;
183         struct iio_dev *indio_dev;
184 
185         int force_fan;
186         int last_key_event;
187         int key_event_valid;
188         int kbd_type;
189         int kbd_mode;
190         int kbd_time;
191         int usbsc_bat_level;
192         int usbsc_mode_base;
193         int hotkey_event_type;
194         int max_cooling_method;
195 
196         unsigned int illumination_supported:1;
197         unsigned int video_supported:1;
198         unsigned int fan_supported:1;
199         unsigned int system_event_supported:1;
200         unsigned int ntfy_supported:1;
201         unsigned int info_supported:1;
202         unsigned int tr_backlight_supported:1;
203         unsigned int kbd_illum_supported:1;
204         unsigned int touchpad_supported:1;
205         unsigned int eco_supported:1;
206         unsigned int accelerometer_supported:1;
207         unsigned int usb_sleep_charge_supported:1;
208         unsigned int usb_rapid_charge_supported:1;
209         unsigned int usb_sleep_music_supported:1;
210         unsigned int kbd_function_keys_supported:1;
211         unsigned int panel_power_on_supported:1;
212         unsigned int usb_three_supported:1;
213         unsigned int wwan_supported:1;
214         unsigned int cooling_method_supported:1;
215         unsigned int sysfs_created:1;
216         unsigned int special_functions;
217 
218         bool kbd_event_generated;
219         bool kbd_led_registered;
220         bool illumination_led_registered;
221         bool eco_led_registered;
222         bool killswitch;
223 };
224 
225 static struct toshiba_acpi_dev *toshiba_acpi;
226 
227 static bool disable_hotkeys;
228 module_param(disable_hotkeys, bool, 0444);
229 MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
230 
231 static const struct acpi_device_id toshiba_device_ids[] = {
232         {"TOS6200", 0},
233         {"TOS6207", 0},
234         {"TOS6208", 0},
235         {"TOS1900", 0},
236         {"", 0},
237 };
238 MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
239 
240 static const struct key_entry toshiba_acpi_keymap[] = {
241         { KE_KEY, 0x9e, { KEY_RFKILL } },
242         { KE_KEY, 0x101, { KEY_MUTE } },
243         { KE_KEY, 0x102, { KEY_ZOOMOUT } },
244         { KE_KEY, 0x103, { KEY_ZOOMIN } },
245         { KE_KEY, 0x10f, { KEY_TAB } },
246         { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
247         { KE_KEY, 0x139, { KEY_ZOOMRESET } },
248         { KE_KEY, 0x13b, { KEY_COFFEE } },
249         { KE_KEY, 0x13c, { KEY_BATTERY } },
250         { KE_KEY, 0x13d, { KEY_SLEEP } },
251         { KE_KEY, 0x13e, { KEY_SUSPEND } },
252         { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
253         { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
254         { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
255         { KE_KEY, 0x142, { KEY_WLAN } },
256         { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
257         { KE_KEY, 0x17f, { KEY_FN } },
258         { KE_KEY, 0xb05, { KEY_PROG2 } },
259         { KE_KEY, 0xb06, { KEY_WWW } },
260         { KE_KEY, 0xb07, { KEY_MAIL } },
261         { KE_KEY, 0xb30, { KEY_STOP } },
262         { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
263         { KE_KEY, 0xb32, { KEY_NEXTSONG } },
264         { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
265         { KE_KEY, 0xb5a, { KEY_MEDIA } },
266         { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
267         { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
268         { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
269         { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
270         { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
271         { KE_END, 0 },
272 };
273 
274 static const struct key_entry toshiba_acpi_alt_keymap[] = {
275         { KE_KEY, 0x102, { KEY_ZOOMOUT } },
276         { KE_KEY, 0x103, { KEY_ZOOMIN } },
277         { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
278         { KE_KEY, 0x139, { KEY_ZOOMRESET } },
279         { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
280         { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
281         { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
282         { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
283         { KE_KEY, 0x157, { KEY_MUTE } },
284         { KE_KEY, 0x158, { KEY_WLAN } },
285         { KE_END, 0 },
286 };
287 
288 /*
289  * List of models which have a broken acpi-video backlight interface and thus
290  * need to use the toshiba (vendor) interface instead.
291  */
292 static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
293         {}
294 };
295 
296 /*
297  * Utility
298  */
299 
300 static inline void _set_bit(u32 *word, u32 mask, int value)
301 {
302         *word = (*word & ~mask) | (mask * value);
303 }
304 
305 /*
306  * ACPI interface wrappers
307  */
308 
309 static int write_acpi_int(const char *methodName, int val)
310 {
311         acpi_status status;
312 
313         status = acpi_execute_simple_method(NULL, (char *)methodName, val);
314         return (status == AE_OK) ? 0 : -EIO;
315 }
316 
317 /*
318  * Perform a raw configuration call.  Here we don't care about input or output
319  * buffer format.
320  */
321 static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
322                            const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
323 {
324         struct acpi_object_list params;
325         union acpi_object in_objs[TCI_WORDS];
326         struct acpi_buffer results;
327         union acpi_object out_objs[TCI_WORDS + 1];
328         acpi_status status;
329         int i;
330 
331         params.count = TCI_WORDS;
332         params.pointer = in_objs;
333         for (i = 0; i < TCI_WORDS; ++i) {
334                 in_objs[i].type = ACPI_TYPE_INTEGER;
335                 in_objs[i].integer.value = in[i];
336         }
337 
338         results.length = sizeof(out_objs);
339         results.pointer = out_objs;
340 
341         status = acpi_evaluate_object(dev->acpi_dev->handle,
342                                       (char *)dev->method_hci, &params,
343                                       &results);
344         if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
345                 for (i = 0; i < out_objs->package.count; ++i)
346                         out[i] = out_objs->package.elements[i].integer.value;
347         }
348 
349         return status;
350 }
351 
352 /*
353  * Common hci tasks
354  *
355  * In addition to the ACPI status, the HCI system returns a result which
356  * may be useful (such as "not supported").
357  */
358 
359 static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
360 {
361         u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
362         u32 out[TCI_WORDS];
363         acpi_status status = tci_raw(dev, in, out);
364 
365         return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
366 }
367 
368 static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
369 {
370         u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
371         u32 out[TCI_WORDS];
372         acpi_status status = tci_raw(dev, in, out);
373 
374         if (ACPI_FAILURE(status))
375                 return TOS_FAILURE;
376 
377         *out1 = out[2];
378 
379         return out[0];
380 }
381 
382 /*
383  * Common sci tasks
384  */
385 
386 static int sci_open(struct toshiba_acpi_dev *dev)
387 {
388         u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
389         u32 out[TCI_WORDS];
390         acpi_status status;
391 
392         status = tci_raw(dev, in, out);
393         if  (ACPI_FAILURE(status)) {
394                 pr_err("ACPI call to open SCI failed\n");
395                 return 0;
396         }
397 
398         if (out[0] == TOS_OPEN_CLOSE_OK) {
399                 return 1;
400         } else if (out[0] == TOS_ALREADY_OPEN) {
401                 pr_info("Toshiba SCI already opened\n");
402                 return 1;
403         } else if (out[0] == TOS_NOT_SUPPORTED) {
404                 /*
405                  * Some BIOSes do not have the SCI open/close functions
406                  * implemented and return 0x8000 (Not Supported), failing to
407                  * register some supported features.
408                  *
409                  * Simply return 1 if we hit those affected laptops to make the
410                  * supported features work.
411                  *
412                  * In the case that some laptops really do not support the SCI,
413                  * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
414                  * and thus, not registering support for the queried feature.
415                  */
416                 return 1;
417         } else if (out[0] == TOS_NOT_PRESENT) {
418                 pr_info("Toshiba SCI is not present\n");
419         }
420 
421         return 0;
422 }
423 
424 static void sci_close(struct toshiba_acpi_dev *dev)
425 {
426         u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
427         u32 out[TCI_WORDS];
428         acpi_status status;
429 
430         status = tci_raw(dev, in, out);
431         if (ACPI_FAILURE(status)) {
432                 pr_err("ACPI call to close SCI failed\n");
433                 return;
434         }
435 
436         if (out[0] == TOS_OPEN_CLOSE_OK)
437                 return;
438         else if (out[0] == TOS_NOT_OPENED)
439                 pr_info("Toshiba SCI not opened\n");
440         else if (out[0] == TOS_NOT_PRESENT)
441                 pr_info("Toshiba SCI is not present\n");
442 }
443 
444 static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
445 {
446         u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
447         u32 out[TCI_WORDS];
448         acpi_status status = tci_raw(dev, in, out);
449 
450         if (ACPI_FAILURE(status))
451                 return TOS_FAILURE;
452 
453         *out1 = out[2];
454 
455         return out[0];
456 }
457 
458 static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
459 {
460         u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
461         u32 out[TCI_WORDS];
462         acpi_status status = tci_raw(dev, in, out);
463 
464         return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
465 }
466 
467 /* Illumination support */
468 static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
469 {
470         u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
471         u32 out[TCI_WORDS];
472         acpi_status status;
473 
474         dev->illumination_supported = 0;
475         dev->illumination_led_registered = false;
476 
477         if (!sci_open(dev))
478                 return;
479 
480         status = tci_raw(dev, in, out);
481         sci_close(dev);
482         if (ACPI_FAILURE(status))
483                 pr_err("ACPI call to query Illumination support failed\n");
484         else if (out[0] == TOS_SUCCESS)
485                 dev->illumination_supported = 1;
486 }
487 
488 static void toshiba_illumination_set(struct led_classdev *cdev,
489                                      enum led_brightness brightness)
490 {
491         struct toshiba_acpi_dev *dev = container_of(cdev,
492                         struct toshiba_acpi_dev, led_dev);
493         u32 result;
494         u32 state;
495 
496         /* First request : initialize communication. */
497         if (!sci_open(dev))
498                 return;
499 
500         /* Switch the illumination on/off */
501         state = brightness ? 1 : 0;
502         result = sci_write(dev, SCI_ILLUMINATION, state);
503         sci_close(dev);
504         if (result == TOS_FAILURE)
505                 pr_err("ACPI call for illumination failed\n");
506 }
507 
508 static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
509 {
510         struct toshiba_acpi_dev *dev = container_of(cdev,
511                         struct toshiba_acpi_dev, led_dev);
512         u32 state, result;
513 
514         /* First request : initialize communication. */
515         if (!sci_open(dev))
516                 return LED_OFF;
517 
518         /* Check the illumination */
519         result = sci_read(dev, SCI_ILLUMINATION, &state);
520         sci_close(dev);
521         if (result == TOS_FAILURE) {
522                 pr_err("ACPI call for illumination failed\n");
523                 return LED_OFF;
524         } else if (result != TOS_SUCCESS) {
525                 return LED_OFF;
526         }
527 
528         return state ? LED_FULL : LED_OFF;
529 }
530 
531 /* KBD Illumination */
532 static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
533 {
534         u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
535         u32 out[TCI_WORDS];
536         acpi_status status;
537 
538         dev->kbd_illum_supported = 0;
539         dev->kbd_led_registered = false;
540         dev->kbd_event_generated = false;
541 
542         if (!sci_open(dev))
543                 return;
544 
545         status = tci_raw(dev, in, out);
546         sci_close(dev);
547         if (ACPI_FAILURE(status)) {
548                 pr_err("ACPI call to query kbd illumination support failed\n");
549         } else if (out[0] == TOS_SUCCESS) {
550                 /*
551                  * Check for keyboard backlight timeout max value,
552                  * previous kbd backlight implementation set this to
553                  * 0x3c0003, and now the new implementation set this
554                  * to 0x3c001a, use this to distinguish between them.
555                  */
556                 if (out[3] == SCI_KBD_TIME_MAX)
557                         dev->kbd_type = 2;
558                 else
559                         dev->kbd_type = 1;
560                 /* Get the current keyboard backlight mode */
561                 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
562                 /* Get the current time (1-60 seconds) */
563                 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
564                 /* Flag as supported */
565                 dev->kbd_illum_supported = 1;
566         }
567 }
568 
569 static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
570 {
571         u32 result;
572 
573         if (!sci_open(dev))
574                 return -EIO;
575 
576         result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
577         sci_close(dev);
578         if (result == TOS_FAILURE)
579                 pr_err("ACPI call to set KBD backlight status failed\n");
580         else if (result == TOS_NOT_SUPPORTED)
581                 return -ENODEV;
582 
583         return result == TOS_SUCCESS ? 0 : -EIO;
584 }
585 
586 static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
587 {
588         u32 result;
589 
590         if (!sci_open(dev))
591                 return -EIO;
592 
593         result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
594         sci_close(dev);
595         if (result == TOS_FAILURE)
596                 pr_err("ACPI call to get KBD backlight status failed\n");
597         else if (result == TOS_NOT_SUPPORTED)
598                 return -ENODEV;
599 
600         return result == TOS_SUCCESS ? 0 : -EIO;
601 }
602 
603 static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
604 {
605         struct toshiba_acpi_dev *dev = container_of(cdev,
606                         struct toshiba_acpi_dev, kbd_led);
607         u32 result;
608         u32 state;
609 
610         /* Check the keyboard backlight state */
611         result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
612         if (result == TOS_FAILURE) {
613                 pr_err("ACPI call to get the keyboard backlight failed\n");
614                 return LED_OFF;
615         } else if (result != TOS_SUCCESS) {
616                 return LED_OFF;
617         }
618 
619         return state ? LED_FULL : LED_OFF;
620 }
621 
622 static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
623                                      enum led_brightness brightness)
624 {
625         struct toshiba_acpi_dev *dev = container_of(cdev,
626                         struct toshiba_acpi_dev, kbd_led);
627         u32 result;
628         u32 state;
629 
630         /* Set the keyboard backlight state */
631         state = brightness ? 1 : 0;
632         result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
633         if (result == TOS_FAILURE)
634                 pr_err("ACPI call to set KBD Illumination mode failed\n");
635 }
636 
637 /* TouchPad support */
638 static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
639 {
640         u32 result;
641 
642         if (!sci_open(dev))
643                 return -EIO;
644 
645         result = sci_write(dev, SCI_TOUCHPAD, state);
646         sci_close(dev);
647         if (result == TOS_FAILURE)
648                 pr_err("ACPI call to set the touchpad failed\n");
649         else if (result == TOS_NOT_SUPPORTED)
650                 return -ENODEV;
651 
652         return result == TOS_SUCCESS ? 0 : -EIO;
653 }
654 
655 static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
656 {
657         u32 result;
658 
659         if (!sci_open(dev))
660                 return -EIO;
661 
662         result = sci_read(dev, SCI_TOUCHPAD, state);
663         sci_close(dev);
664         if (result == TOS_FAILURE)
665                 pr_err("ACPI call to query the touchpad failed\n");
666         else if (result == TOS_NOT_SUPPORTED)
667                 return -ENODEV;
668 
669         return result == TOS_SUCCESS ? 0 : -EIO;
670 }
671 
672 /* Eco Mode support */
673 static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
674 {
675         acpi_status status;
676         u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
677         u32 out[TCI_WORDS];
678 
679         dev->eco_supported = 0;
680         dev->eco_led_registered = false;
681 
682         status = tci_raw(dev, in, out);
683         if (ACPI_FAILURE(status)) {
684                 pr_err("ACPI call to get ECO led failed\n");
685         } else if (out[0] == TOS_INPUT_DATA_ERROR) {
686                 /*
687                  * If we receive 0x8300 (Input Data Error), it means that the
688                  * LED device is present, but that we just screwed the input
689                  * parameters.
690                  *
691                  * Let's query the status of the LED to see if we really have a
692                  * success response, indicating the actual presense of the LED,
693                  * bail out otherwise.
694                  */
695                 in[3] = 1;
696                 status = tci_raw(dev, in, out);
697                 if (ACPI_FAILURE(status))
698                         pr_err("ACPI call to get ECO led failed\n");
699                 else if (out[0] == TOS_SUCCESS)
700                         dev->eco_supported = 1;
701         }
702 }
703 
704 static enum led_brightness
705 toshiba_eco_mode_get_status(struct led_classdev *cdev)
706 {
707         struct toshiba_acpi_dev *dev = container_of(cdev,
708                         struct toshiba_acpi_dev, eco_led);
709         u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
710         u32 out[TCI_WORDS];
711         acpi_status status;
712 
713         status = tci_raw(dev, in, out);
714         if (ACPI_FAILURE(status)) {
715                 pr_err("ACPI call to get ECO led failed\n");
716                 return LED_OFF;
717         } else if (out[0] != TOS_SUCCESS) {
718                 return LED_OFF;
719         }
720 
721         return out[2] ? LED_FULL : LED_OFF;
722 }
723 
724 static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
725                                      enum led_brightness brightness)
726 {
727         struct toshiba_acpi_dev *dev = container_of(cdev,
728                         struct toshiba_acpi_dev, eco_led);
729         u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
730         u32 out[TCI_WORDS];
731         acpi_status status;
732 
733         /* Switch the Eco Mode led on/off */
734         in[2] = (brightness) ? 1 : 0;
735         status = tci_raw(dev, in, out);
736         if (ACPI_FAILURE(status))
737                 pr_err("ACPI call to set ECO led failed\n");
738 }
739 
740 /* Accelerometer support */
741 static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
742 {
743         u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
744         u32 out[TCI_WORDS];
745         acpi_status status;
746 
747         dev->accelerometer_supported = 0;
748 
749         /*
750          * Check if the accelerometer call exists,
751          * this call also serves as initialization
752          */
753         status = tci_raw(dev, in, out);
754         if (ACPI_FAILURE(status))
755                 pr_err("ACPI call to query the accelerometer failed\n");
756         else if (out[0] == TOS_SUCCESS)
757                 dev->accelerometer_supported = 1;
758 }
759 
760 static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
761                                      u32 *xy, u32 *z)
762 {
763         u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
764         u32 out[TCI_WORDS];
765         acpi_status status;
766 
767         /* Check the Accelerometer status */
768         status = tci_raw(dev, in, out);
769         if (ACPI_FAILURE(status)) {
770                 pr_err("ACPI call to query the accelerometer failed\n");
771                 return -EIO;
772         } else if (out[0] == TOS_NOT_SUPPORTED) {
773                 return -ENODEV;
774         } else if (out[0] == TOS_SUCCESS) {
775                 *xy = out[2];
776                 *z = out[4];
777                 return 0;
778         }
779 
780         return -EIO;
781 }
782 
783 /* Sleep (Charge and Music) utilities support */
784 static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
785 {
786         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
787         u32 out[TCI_WORDS];
788         acpi_status status;
789 
790         dev->usb_sleep_charge_supported = 0;
791 
792         if (!sci_open(dev))
793                 return;
794 
795         status = tci_raw(dev, in, out);
796         if (ACPI_FAILURE(status)) {
797                 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
798                 sci_close(dev);
799                 return;
800         } else if (out[0] == TOS_NOT_SUPPORTED) {
801                 sci_close(dev);
802                 return;
803         } else if (out[0] == TOS_SUCCESS) {
804                 dev->usbsc_mode_base = out[4];
805         }
806 
807         in[5] = SCI_USB_CHARGE_BAT_LVL;
808         status = tci_raw(dev, in, out);
809         sci_close(dev);
810         if (ACPI_FAILURE(status)) {
811                 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
812         } else if (out[0] == TOS_SUCCESS) {
813                 dev->usbsc_bat_level = out[2];
814                 /* Flag as supported */
815                 dev->usb_sleep_charge_supported = 1;
816         }
817 
818 }
819 
820 static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
821                                         u32 *mode)
822 {
823         u32 result;
824 
825         if (!sci_open(dev))
826                 return -EIO;
827 
828         result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
829         sci_close(dev);
830         if (result == TOS_FAILURE)
831                 pr_err("ACPI call to set USB S&C mode failed\n");
832         else if (result == TOS_NOT_SUPPORTED)
833                 return -ENODEV;
834 
835         return result == TOS_SUCCESS ? 0 : -EIO;
836 }
837 
838 static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
839                                         u32 mode)
840 {
841         u32 result;
842 
843         if (!sci_open(dev))
844                 return -EIO;
845 
846         result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
847         sci_close(dev);
848         if (result == TOS_FAILURE)
849                 pr_err("ACPI call to set USB S&C mode failed\n");
850         else if (result == TOS_NOT_SUPPORTED)
851                 return -ENODEV;
852 
853         return result == TOS_SUCCESS ? 0 : -EIO;
854 }
855 
856 static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
857                                               u32 *mode)
858 {
859         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
860         u32 out[TCI_WORDS];
861         acpi_status status;
862 
863         if (!sci_open(dev))
864                 return -EIO;
865 
866         in[5] = SCI_USB_CHARGE_BAT_LVL;
867         status = tci_raw(dev, in, out);
868         sci_close(dev);
869         if (ACPI_FAILURE(status)) {
870                 pr_err("ACPI call to get USB S&C battery level failed\n");
871         } else if (out[0] == TOS_NOT_SUPPORTED) {
872                 return -ENODEV;
873         } else if (out[0] == TOS_SUCCESS) {
874                 *mode = out[2];
875                 return 0;
876         }
877 
878         return -EIO;
879 }
880 
881 static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
882                                               u32 mode)
883 {
884         u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
885         u32 out[TCI_WORDS];
886         acpi_status status;
887 
888         if (!sci_open(dev))
889                 return -EIO;
890 
891         in[2] = mode;
892         in[5] = SCI_USB_CHARGE_BAT_LVL;
893         status = tci_raw(dev, in, out);
894         sci_close(dev);
895         if (ACPI_FAILURE(status))
896                 pr_err("ACPI call to set USB S&C battery level failed\n");
897         else if (out[0] == TOS_NOT_SUPPORTED)
898                 return -ENODEV;
899 
900         return out[0] == TOS_SUCCESS ? 0 : -EIO;
901 }
902 
903 static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
904                                         u32 *state)
905 {
906         u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
907         u32 out[TCI_WORDS];
908         acpi_status status;
909 
910         if (!sci_open(dev))
911                 return -EIO;
912 
913         in[5] = SCI_USB_CHARGE_RAPID_DSP;
914         status = tci_raw(dev, in, out);
915         sci_close(dev);
916         if (ACPI_FAILURE(status)) {
917                 pr_err("ACPI call to get USB Rapid Charge failed\n");
918         } else if (out[0] == TOS_NOT_SUPPORTED) {
919                 return -ENODEV;
920         } else if (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) {
921                 *state = out[2];
922                 return 0;
923         }
924 
925         return -EIO;
926 }
927 
928 static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
929                                         u32 state)
930 {
931         u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
932         u32 out[TCI_WORDS];
933         acpi_status status;
934 
935         if (!sci_open(dev))
936                 return -EIO;
937 
938         in[2] = state;
939         in[5] = SCI_USB_CHARGE_RAPID_DSP;
940         status = tci_raw(dev, in, out);
941         sci_close(dev);
942         if (ACPI_FAILURE(status))
943                 pr_err("ACPI call to set USB Rapid Charge failed\n");
944         else if (out[0] == TOS_NOT_SUPPORTED)
945                 return -ENODEV;
946 
947         return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
948 }
949 
950 static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
951 {
952         u32 result;
953 
954         if (!sci_open(dev))
955                 return -EIO;
956 
957         result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
958         sci_close(dev);
959         if (result == TOS_FAILURE)
960                 pr_err("ACPI call to get Sleep and Music failed\n");
961         else if (result == TOS_NOT_SUPPORTED)
962                 return -ENODEV;
963 
964         return result == TOS_SUCCESS ? 0 : -EIO;
965 }
966 
967 static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
968 {
969         u32 result;
970 
971         if (!sci_open(dev))
972                 return -EIO;
973 
974         result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
975         sci_close(dev);
976         if (result == TOS_FAILURE)
977                 pr_err("ACPI call to set Sleep and Music failed\n");
978         else if (result == TOS_NOT_SUPPORTED)
979                 return -ENODEV;
980 
981         return result == TOS_SUCCESS ? 0 : -EIO;
982 }
983 
984 /* Keyboard function keys */
985 static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
986 {
987         u32 result;
988 
989         if (!sci_open(dev))
990                 return -EIO;
991 
992         result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
993         sci_close(dev);
994         if (result == TOS_FAILURE)
995                 pr_err("ACPI call to get KBD function keys failed\n");
996         else if (result == TOS_NOT_SUPPORTED)
997                 return -ENODEV;
998 
999         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1000 }
1001 
1002 static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1003 {
1004         u32 result;
1005 
1006         if (!sci_open(dev))
1007                 return -EIO;
1008 
1009         result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1010         sci_close(dev);
1011         if (result == TOS_FAILURE)
1012                 pr_err("ACPI call to set KBD function keys failed\n");
1013         else if (result == TOS_NOT_SUPPORTED)
1014                 return -ENODEV;
1015 
1016         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1017 }
1018 
1019 /* Panel Power ON */
1020 static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1021 {
1022         u32 result;
1023 
1024         if (!sci_open(dev))
1025                 return -EIO;
1026 
1027         result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1028         sci_close(dev);
1029         if (result == TOS_FAILURE)
1030                 pr_err("ACPI call to get Panel Power ON failed\n");
1031         else if (result == TOS_NOT_SUPPORTED)
1032                 return -ENODEV;
1033 
1034         return result == TOS_SUCCESS ? 0 : -EIO;
1035 }
1036 
1037 static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1038 {
1039         u32 result;
1040 
1041         if (!sci_open(dev))
1042                 return -EIO;
1043 
1044         result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1045         sci_close(dev);
1046         if (result == TOS_FAILURE)
1047                 pr_err("ACPI call to set Panel Power ON failed\n");
1048         else if (result == TOS_NOT_SUPPORTED)
1049                 return -ENODEV;
1050 
1051         return result == TOS_SUCCESS ? 0 : -EIO;
1052 }
1053 
1054 /* USB Three */
1055 static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1056 {
1057         u32 result;
1058 
1059         if (!sci_open(dev))
1060                 return -EIO;
1061 
1062         result = sci_read(dev, SCI_USB_THREE, state);
1063         sci_close(dev);
1064         if (result == TOS_FAILURE)
1065                 pr_err("ACPI call to get USB 3 failed\n");
1066         else if (result == TOS_NOT_SUPPORTED)
1067                 return -ENODEV;
1068 
1069         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1070 }
1071 
1072 static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1073 {
1074         u32 result;
1075 
1076         if (!sci_open(dev))
1077                 return -EIO;
1078 
1079         result = sci_write(dev, SCI_USB_THREE, state);
1080         sci_close(dev);
1081         if (result == TOS_FAILURE)
1082                 pr_err("ACPI call to set USB 3 failed\n");
1083         else if (result == TOS_NOT_SUPPORTED)
1084                 return -ENODEV;
1085 
1086         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1087 }
1088 
1089 /* Hotkey Event type */
1090 static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1091                                          u32 *type)
1092 {
1093         u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1094         u32 out[TCI_WORDS];
1095         acpi_status status;
1096 
1097         status = tci_raw(dev, in, out);
1098         if (ACPI_FAILURE(status)) {
1099                 pr_err("ACPI call to get System type failed\n");
1100         } else if (out[0] == TOS_NOT_SUPPORTED) {
1101                 return -ENODEV;
1102         } else if (out[0] == TOS_SUCCESS) {
1103                 *type = out[3];
1104                 return 0;
1105         }
1106 
1107         return -EIO;
1108 }
1109 
1110 /* Wireless status (RFKill, WLAN, BT, WWAN) */
1111 static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1112 {
1113         u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1114         u32 out[TCI_WORDS];
1115         acpi_status status;
1116 
1117         in[3] = HCI_WIRELESS_STATUS;
1118         status = tci_raw(dev, in, out);
1119 
1120         if (ACPI_FAILURE(status)) {
1121                 pr_err("ACPI call to get Wireless status failed\n");
1122                 return -EIO;
1123         }
1124 
1125         if (out[0] == TOS_NOT_SUPPORTED)
1126                 return -ENODEV;
1127 
1128         if (out[0] != TOS_SUCCESS)
1129                 return -EIO;
1130 
1131         dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1132 
1133         return 0;
1134 }
1135 
1136 /* WWAN */
1137 static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1138 {
1139         u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1140         u32 out[TCI_WORDS];
1141         acpi_status status;
1142 
1143         dev->wwan_supported = 0;
1144 
1145         /*
1146          * WWAN support can be queried by setting the in[3] value to
1147          * HCI_WIRELESS_WWAN (0x03).
1148          *
1149          * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1150          * HCI_WIRELESS_WWAN_STATUS (0x2000).
1151          *
1152          * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1153          * or TOS_NOT_SUPPORTED (0x8000).
1154          */
1155         in[3] = HCI_WIRELESS_WWAN;
1156         status = tci_raw(dev, in, out);
1157 
1158         if (ACPI_FAILURE(status)) {
1159                 pr_err("ACPI call to get WWAN status failed\n");
1160                 return;
1161         }
1162 
1163         if (out[0] != TOS_SUCCESS)
1164                 return;
1165 
1166         dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1167 }
1168 
1169 static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1170 {
1171         u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1172         u32 out[TCI_WORDS];
1173         acpi_status status;
1174 
1175         in[3] = HCI_WIRELESS_WWAN_STATUS;
1176         status = tci_raw(dev, in, out);
1177 
1178         if (ACPI_FAILURE(status)) {
1179                 pr_err("ACPI call to set WWAN status failed\n");
1180                 return -EIO;
1181         }
1182 
1183         if (out[0] == TOS_NOT_SUPPORTED)
1184                 return -ENODEV;
1185 
1186         if (out[0] != TOS_SUCCESS)
1187                 return -EIO;
1188 
1189         /*
1190          * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1191          * (de)activate the device, but some others need the
1192          * HCI_WIRELESS_WWAN_POWER call as well.
1193          */
1194         in[3] = HCI_WIRELESS_WWAN_POWER;
1195         status = tci_raw(dev, in, out);
1196 
1197         if (ACPI_FAILURE(status)) {
1198                 pr_err("ACPI call to set WWAN power failed\n");
1199                 return -EIO;
1200         }
1201 
1202         if (out[0] == TOS_NOT_SUPPORTED)
1203                 return -ENODEV;
1204 
1205         return out[0] == TOS_SUCCESS ? 0 : -EIO;
1206 }
1207 
1208 /* Cooling Method */
1209 static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1210 {
1211         u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1212         u32 out[TCI_WORDS];
1213         acpi_status status;
1214 
1215         dev->cooling_method_supported = 0;
1216         dev->max_cooling_method = 0;
1217 
1218         status = tci_raw(dev, in, out);
1219         if (ACPI_FAILURE(status))
1220                 pr_err("ACPI call to get Cooling Method failed\n");
1221 
1222         if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1223                 return;
1224 
1225         dev->cooling_method_supported = 1;
1226         dev->max_cooling_method = out[3];
1227 }
1228 
1229 static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1230 {
1231         u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1232 
1233         if (result == TOS_FAILURE)
1234                 pr_err("ACPI call to get Cooling Method failed\n");
1235 
1236         if (result == TOS_NOT_SUPPORTED)
1237                 return -ENODEV;
1238 
1239         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1240 }
1241 
1242 static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1243 {
1244         u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1245 
1246         if (result == TOS_FAILURE)
1247                 pr_err("ACPI call to get Cooling Method failed\n");
1248 
1249         if (result == TOS_NOT_SUPPORTED)
1250                 return -ENODEV;
1251 
1252         return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1253 }
1254 
1255 /* Transflective Backlight */
1256 static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1257 {
1258         u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1259 
1260         if (result == TOS_FAILURE)
1261                 pr_err("ACPI call to get Transflective Backlight failed\n");
1262         else if (result == TOS_NOT_SUPPORTED)
1263                 return -ENODEV;
1264 
1265         return result == TOS_SUCCESS ? 0 : -EIO;
1266 }
1267 
1268 static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1269 {
1270         u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1271 
1272         if (result == TOS_FAILURE)
1273                 pr_err("ACPI call to set Transflective Backlight failed\n");
1274         else if (result == TOS_NOT_SUPPORTED)
1275                 return -ENODEV;
1276 
1277         return result == TOS_SUCCESS ? 0 : -EIO;
1278 }
1279 
1280 static struct proc_dir_entry *toshiba_proc_dir;
1281 
1282 /* LCD Brightness */
1283 static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1284 {
1285         u32 result;
1286         u32 value;
1287         int brightness = 0;
1288 
1289         if (dev->tr_backlight_supported) {
1290                 int ret = get_tr_backlight_status(dev, &value);
1291 
1292                 if (ret)
1293                         return ret;
1294                 if (value)
1295                         return 0;
1296                 brightness++;
1297         }
1298 
1299         result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1300         if (result == TOS_FAILURE)
1301                 pr_err("ACPI call to get LCD Brightness failed\n");
1302         else if (result == TOS_NOT_SUPPORTED)
1303                 return -ENODEV;
1304         if (result == TOS_SUCCESS)
1305                 return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
1306 
1307         return -EIO;
1308 }
1309 
1310 static int get_lcd_brightness(struct backlight_device *bd)
1311 {
1312         struct toshiba_acpi_dev *dev = bl_get_data(bd);
1313 
1314         return __get_lcd_brightness(dev);
1315 }
1316 
1317 static int lcd_proc_show(struct seq_file *m, void *v)
1318 {
1319         struct toshiba_acpi_dev *dev = m->private;
1320         int levels;
1321         int value;
1322 
1323         if (!dev->backlight_dev)
1324                 return -ENODEV;
1325 
1326         levels = dev->backlight_dev->props.max_brightness + 1;
1327         value = get_lcd_brightness(dev->backlight_dev);
1328         if (value >= 0) {
1329                 seq_printf(m, "brightness:              %d\n", value);
1330                 seq_printf(m, "brightness_levels:       %d\n", levels);
1331                 return 0;
1332         }
1333 
1334         pr_err("Error reading LCD brightness\n");
1335 
1336         return -EIO;
1337 }
1338 
1339 static int lcd_proc_open(struct inode *inode, struct file *file)
1340 {
1341         return single_open(file, lcd_proc_show, PDE_DATA(inode));
1342 }
1343 
1344 static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1345 {
1346         u32 result;
1347 
1348         if (dev->tr_backlight_supported) {
1349                 int ret = set_tr_backlight_status(dev, !value);
1350 
1351                 if (ret)
1352                         return ret;
1353                 if (value)
1354                         value--;
1355         }
1356 
1357         value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1358         result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1359         if (result == TOS_FAILURE)
1360                 pr_err("ACPI call to set LCD Brightness failed\n");
1361         else if (result == TOS_NOT_SUPPORTED)
1362                 return -ENODEV;
1363 
1364         return result == TOS_SUCCESS ? 0 : -EIO;
1365 }
1366 
1367 static int set_lcd_status(struct backlight_device *bd)
1368 {
1369         struct toshiba_acpi_dev *dev = bl_get_data(bd);
1370 
1371         return set_lcd_brightness(dev, bd->props.brightness);
1372 }
1373 
1374 static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1375                               size_t count, loff_t *pos)
1376 {
1377         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1378         char cmd[42];
1379         size_t len;
1380         int levels = dev->backlight_dev->props.max_brightness + 1;
1381         int value;
1382 
1383         len = min(count, sizeof(cmd) - 1);
1384         if (copy_from_user(cmd, buf, len))
1385                 return -EFAULT;
1386         cmd[len] = '\0';
1387 
1388         if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1389             value < 0 && value > levels)
1390                 return -EINVAL;
1391 
1392         if (set_lcd_brightness(dev, value))
1393                 return -EIO;
1394 
1395         return count;
1396 }
1397 
1398 static const struct file_operations lcd_proc_fops = {
1399         .owner          = THIS_MODULE,
1400         .open           = lcd_proc_open,
1401         .read           = seq_read,
1402         .llseek         = seq_lseek,
1403         .release        = single_release,
1404         .write          = lcd_proc_write,
1405 };
1406 
1407 /* Video-Out */
1408 static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1409 {
1410         u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1411 
1412         if (result == TOS_FAILURE)
1413                 pr_err("ACPI call to get Video-Out failed\n");
1414         else if (result == TOS_NOT_SUPPORTED)
1415                 return -ENODEV;
1416 
1417         return result == TOS_SUCCESS ? 0 : -EIO;
1418 }
1419 
1420 static int video_proc_show(struct seq_file *m, void *v)
1421 {
1422         struct toshiba_acpi_dev *dev = m->private;
1423         u32 value;
1424 
1425         if (!get_video_status(dev, &value)) {
1426                 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1427                 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1428                 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1429 
1430                 seq_printf(m, "lcd_out:                 %d\n", is_lcd);
1431                 seq_printf(m, "crt_out:                 %d\n", is_crt);
1432                 seq_printf(m, "tv_out:                  %d\n", is_tv);
1433                 return 0;
1434         }
1435 
1436         return -EIO;
1437 }
1438 
1439 static int video_proc_open(struct inode *inode, struct file *file)
1440 {
1441         return single_open(file, video_proc_show, PDE_DATA(inode));
1442 }
1443 
1444 static ssize_t video_proc_write(struct file *file, const char __user *buf,
1445                                 size_t count, loff_t *pos)
1446 {
1447         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1448         char *buffer;
1449         char *cmd;
1450         int remain = count;
1451         int lcd_out = -1;
1452         int crt_out = -1;
1453         int tv_out = -1;
1454         int value;
1455         int ret;
1456         u32 video_out;
1457 
1458         cmd = kmalloc(count + 1, GFP_KERNEL);
1459         if (!cmd)
1460                 return -ENOMEM;
1461         if (copy_from_user(cmd, buf, count)) {
1462                 kfree(cmd);
1463                 return -EFAULT;
1464         }
1465         cmd[count] = '\0';
1466 
1467         buffer = cmd;
1468 
1469         /*
1470          * Scan expression.  Multiple expressions may be delimited with ;
1471          * NOTE: To keep scanning simple, invalid fields are ignored.
1472          */
1473         while (remain) {
1474                 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1475                         lcd_out = value & 1;
1476                 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1477                         crt_out = value & 1;
1478                 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1479                         tv_out = value & 1;
1480                 /* Advance to one character past the next ; */
1481                 do {
1482                         ++buffer;
1483                         --remain;
1484                 } while (remain && *(buffer - 1) != ';');
1485         }
1486 
1487         kfree(cmd);
1488 
1489         ret = get_video_status(dev, &video_out);
1490         if (!ret) {
1491                 unsigned int new_video_out = video_out;
1492 
1493                 if (lcd_out != -1)
1494                         _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1495                 if (crt_out != -1)
1496                         _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1497                 if (tv_out != -1)
1498                         _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1499                 /*
1500                  * To avoid unnecessary video disruption, only write the new
1501                  * video setting if something changed.
1502                  */
1503                 if (new_video_out != video_out)
1504                         ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1505         }
1506 
1507         return ret ? -EIO : count;
1508 }
1509 
1510 static const struct file_operations video_proc_fops = {
1511         .owner          = THIS_MODULE,
1512         .open           = video_proc_open,
1513         .read           = seq_read,
1514         .llseek         = seq_lseek,
1515         .release        = single_release,
1516         .write          = video_proc_write,
1517 };
1518 
1519 /* Fan status */
1520 static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1521 {
1522         u32 result = hci_read(dev, HCI_FAN, status);
1523 
1524         if (result == TOS_FAILURE)
1525                 pr_err("ACPI call to get Fan status failed\n");
1526         else if (result == TOS_NOT_SUPPORTED)
1527                 return -ENODEV;
1528 
1529         return result == TOS_SUCCESS ? 0 : -EIO;
1530 }
1531 
1532 static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1533 {
1534         u32 result = hci_write(dev, HCI_FAN, status);
1535 
1536         if (result == TOS_FAILURE)
1537                 pr_err("ACPI call to set Fan status failed\n");
1538         else if (result == TOS_NOT_SUPPORTED)
1539                 return -ENODEV;
1540 
1541         return result == TOS_SUCCESS ? 0 : -EIO;
1542 }
1543 
1544 static int fan_proc_show(struct seq_file *m, void *v)
1545 {
1546         struct toshiba_acpi_dev *dev = m->private;
1547         u32 value;
1548 
1549         if (get_fan_status(dev, &value))
1550                 return -EIO;
1551 
1552         seq_printf(m, "running:                 %d\n", (value > 0));
1553         seq_printf(m, "force_on:                %d\n", dev->force_fan);
1554 
1555         return 0;
1556 }
1557 
1558 static int fan_proc_open(struct inode *inode, struct file *file)
1559 {
1560         return single_open(file, fan_proc_show, PDE_DATA(inode));
1561 }
1562 
1563 static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1564                               size_t count, loff_t *pos)
1565 {
1566         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1567         char cmd[42];
1568         size_t len;
1569         int value;
1570 
1571         len = min(count, sizeof(cmd) - 1);
1572         if (copy_from_user(cmd, buf, len))
1573                 return -EFAULT;
1574         cmd[len] = '\0';
1575 
1576         if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1577             value != 0 && value != 1)
1578                 return -EINVAL;
1579 
1580         if (set_fan_status(dev, value))
1581                 return -EIO;
1582 
1583         dev->force_fan = value;
1584 
1585         return count;
1586 }
1587 
1588 static const struct file_operations fan_proc_fops = {
1589         .owner          = THIS_MODULE,
1590         .open           = fan_proc_open,
1591         .read           = seq_read,
1592         .llseek         = seq_lseek,
1593         .release        = single_release,
1594         .write          = fan_proc_write,
1595 };
1596 
1597 static int keys_proc_show(struct seq_file *m, void *v)
1598 {
1599         struct toshiba_acpi_dev *dev = m->private;
1600 
1601         seq_printf(m, "hotkey_ready:            %d\n", dev->key_event_valid);
1602         seq_printf(m, "hotkey:                  0x%04x\n", dev->last_key_event);
1603 
1604         return 0;
1605 }
1606 
1607 static int keys_proc_open(struct inode *inode, struct file *file)
1608 {
1609         return single_open(file, keys_proc_show, PDE_DATA(inode));
1610 }
1611 
1612 static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1613                                size_t count, loff_t *pos)
1614 {
1615         struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1616         char cmd[42];
1617         size_t len;
1618         int value;
1619 
1620         len = min(count, sizeof(cmd) - 1);
1621         if (copy_from_user(cmd, buf, len))
1622                 return -EFAULT;
1623         cmd[len] = '\0';
1624 
1625         if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1626                 dev->key_event_valid = 0;
1627         else
1628                 return -EINVAL;
1629 
1630         return count;
1631 }
1632 
1633 static const struct file_operations keys_proc_fops = {
1634         .owner          = THIS_MODULE,
1635         .open           = keys_proc_open,
1636         .read           = seq_read,
1637         .llseek         = seq_lseek,
1638         .release        = single_release,
1639         .write          = keys_proc_write,
1640 };
1641 
1642 static int version_proc_show(struct seq_file *m, void *v)
1643 {
1644         seq_printf(m, "driver:                  %s\n", TOSHIBA_ACPI_VERSION);
1645         seq_printf(m, "proc_interface:          %d\n", PROC_INTERFACE_VERSION);
1646         return 0;
1647 }
1648 
1649 static int version_proc_open(struct inode *inode, struct file *file)
1650 {
1651         return single_open(file, version_proc_show, PDE_DATA(inode));
1652 }
1653 
1654 static const struct file_operations version_proc_fops = {
1655         .owner          = THIS_MODULE,
1656         .open           = version_proc_open,
1657         .read           = seq_read,
1658         .llseek         = seq_lseek,
1659         .release        = single_release,
1660 };
1661 
1662 /*
1663  * Proc and module init
1664  */
1665 
1666 #define PROC_TOSHIBA            "toshiba"
1667 
1668 static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1669 {
1670         if (dev->backlight_dev)
1671                 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1672                                  &lcd_proc_fops, dev);
1673         if (dev->video_supported)
1674                 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1675                                  &video_proc_fops, dev);
1676         if (dev->fan_supported)
1677                 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1678                                  &fan_proc_fops, dev);
1679         if (dev->hotkey_dev)
1680                 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1681                                  &keys_proc_fops, dev);
1682         proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1683                          &version_proc_fops, dev);
1684 }
1685 
1686 static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1687 {
1688         if (dev->backlight_dev)
1689                 remove_proc_entry("lcd", toshiba_proc_dir);
1690         if (dev->video_supported)
1691                 remove_proc_entry("video", toshiba_proc_dir);
1692         if (dev->fan_supported)
1693                 remove_proc_entry("fan", toshiba_proc_dir);
1694         if (dev->hotkey_dev)
1695                 remove_proc_entry("keys", toshiba_proc_dir);
1696         remove_proc_entry("version", toshiba_proc_dir);
1697 }
1698 
1699 static const struct backlight_ops toshiba_backlight_data = {
1700         .options = BL_CORE_SUSPENDRESUME,
1701         .get_brightness = get_lcd_brightness,
1702         .update_status  = set_lcd_status,
1703 };
1704 
1705 /* Keyboard backlight work */
1706 static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1707 
1708 static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1709 
1710 /*
1711  * Sysfs files
1712  */
1713 static ssize_t version_show(struct device *dev,
1714                             struct device_attribute *attr, char *buf)
1715 {
1716         return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1717 }
1718 static DEVICE_ATTR_RO(version);
1719 
1720 static ssize_t fan_store(struct device *dev,
1721                          struct device_attribute *attr,
1722                          const char *buf, size_t count)
1723 {
1724         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1725         int state;
1726         int ret;
1727 
1728         ret = kstrtoint(buf, 0, &state);
1729         if (ret)
1730                 return ret;
1731 
1732         if (state != 0 && state != 1)
1733                 return -EINVAL;
1734 
1735         ret = set_fan_status(toshiba, state);
1736         if (ret)
1737                 return ret;
1738 
1739         return count;
1740 }
1741 
1742 static ssize_t fan_show(struct device *dev,
1743                         struct device_attribute *attr, char *buf)
1744 {
1745         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1746         u32 value;
1747         int ret;
1748 
1749         ret = get_fan_status(toshiba, &value);
1750         if (ret)
1751                 return ret;
1752 
1753         return sprintf(buf, "%d\n", value);
1754 }
1755 static DEVICE_ATTR_RW(fan);
1756 
1757 static ssize_t kbd_backlight_mode_store(struct device *dev,
1758                                         struct device_attribute *attr,
1759                                         const char *buf, size_t count)
1760 {
1761         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1762         int mode;
1763         int ret;
1764 
1765 
1766         ret = kstrtoint(buf, 0, &mode);
1767         if (ret)
1768                 return ret;
1769 
1770         /* Check for supported modes depending on keyboard backlight type */
1771         if (toshiba->kbd_type == 1) {
1772                 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1773                 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1774                         return -EINVAL;
1775         } else if (toshiba->kbd_type == 2) {
1776                 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1777                 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1778                     mode != SCI_KBD_MODE_OFF)
1779                         return -EINVAL;
1780         }
1781 
1782         /*
1783          * Set the Keyboard Backlight Mode where:
1784          *      Auto - KBD backlight turns off automatically in given time
1785          *      FN-Z - KBD backlight "toggles" when hotkey pressed
1786          *      ON   - KBD backlight is always on
1787          *      OFF  - KBD backlight is always off
1788          */
1789 
1790         /* Only make a change if the actual mode has changed */
1791         if (toshiba->kbd_mode != mode) {
1792                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1793                 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1794 
1795                 /* OR the "base time" to the actual method format */
1796                 if (toshiba->kbd_type == 1) {
1797                         /* Type 1 requires the current mode */
1798                         time |= toshiba->kbd_mode;
1799                 } else if (toshiba->kbd_type == 2) {
1800                         /* Type 2 requires the desired mode */
1801                         time |= mode;
1802                 }
1803 
1804                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1805                 if (ret)
1806                         return ret;
1807 
1808                 toshiba->kbd_mode = mode;
1809 
1810                 /*
1811                  * Some laptop models with the second generation backlit
1812                  * keyboard (type 2) do not generate the keyboard backlight
1813                  * changed event (0x92), and thus, the driver will never update
1814                  * the sysfs entries.
1815                  *
1816                  * The event is generated right when changing the keyboard
1817                  * backlight mode and the *notify function will set the
1818                  * kbd_event_generated to true.
1819                  *
1820                  * In case the event is not generated, schedule the keyboard
1821                  * backlight work to update the sysfs entries and emulate the
1822                  * event via genetlink.
1823                  */
1824                 if (toshiba->kbd_type == 2 &&
1825                     !toshiba_acpi->kbd_event_generated)
1826                         schedule_work(&kbd_bl_work);
1827         }
1828 
1829         return count;
1830 }
1831 
1832 static ssize_t kbd_backlight_mode_show(struct device *dev,
1833                                        struct device_attribute *attr,
1834                                        char *buf)
1835 {
1836         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1837         u32 time;
1838 
1839         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1840                 return -EIO;
1841 
1842         return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1843 }
1844 static DEVICE_ATTR_RW(kbd_backlight_mode);
1845 
1846 static ssize_t kbd_type_show(struct device *dev,
1847                              struct device_attribute *attr, char *buf)
1848 {
1849         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1850 
1851         return sprintf(buf, "%d\n", toshiba->kbd_type);
1852 }
1853 static DEVICE_ATTR_RO(kbd_type);
1854 
1855 static ssize_t available_kbd_modes_show(struct device *dev,
1856                                         struct device_attribute *attr,
1857                                         char *buf)
1858 {
1859         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1860 
1861         if (toshiba->kbd_type == 1)
1862                 return sprintf(buf, "0x%x 0x%x\n",
1863                                SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1864 
1865         return sprintf(buf, "0x%x 0x%x 0x%x\n",
1866                        SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1867 }
1868 static DEVICE_ATTR_RO(available_kbd_modes);
1869 
1870 static ssize_t kbd_backlight_timeout_store(struct device *dev,
1871                                            struct device_attribute *attr,
1872                                            const char *buf, size_t count)
1873 {
1874         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1875         int time;
1876         int ret;
1877 
1878         ret = kstrtoint(buf, 0, &time);
1879         if (ret)
1880                 return ret;
1881 
1882         /* Check for supported values depending on kbd_type */
1883         if (toshiba->kbd_type == 1) {
1884                 if (time < 0 || time > 60)
1885                         return -EINVAL;
1886         } else if (toshiba->kbd_type == 2) {
1887                 if (time < 1 || time > 60)
1888                         return -EINVAL;
1889         }
1890 
1891         /* Set the Keyboard Backlight Timeout */
1892 
1893         /* Only make a change if the actual timeout has changed */
1894         if (toshiba->kbd_time != time) {
1895                 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1896                 time = time << HCI_MISC_SHIFT;
1897                 /* OR the "base time" to the actual method format */
1898                 if (toshiba->kbd_type == 1)
1899                         time |= SCI_KBD_MODE_FNZ;
1900                 else if (toshiba->kbd_type == 2)
1901                         time |= SCI_KBD_MODE_AUTO;
1902 
1903                 ret = toshiba_kbd_illum_status_set(toshiba, time);
1904                 if (ret)
1905                         return ret;
1906 
1907                 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1908         }
1909 
1910         return count;
1911 }
1912 
1913 static ssize_t kbd_backlight_timeout_show(struct device *dev,
1914                                           struct device_attribute *attr,
1915                                           char *buf)
1916 {
1917         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1918         u32 time;
1919 
1920         if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1921                 return -EIO;
1922 
1923         return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1924 }
1925 static DEVICE_ATTR_RW(kbd_backlight_timeout);
1926 
1927 static ssize_t touchpad_store(struct device *dev,
1928                               struct device_attribute *attr,
1929                               const char *buf, size_t count)
1930 {
1931         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1932         int state;
1933         int ret;
1934 
1935         /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1936         ret = kstrtoint(buf, 0, &state);
1937         if (ret)
1938                 return ret;
1939         if (state != 0 && state != 1)
1940                 return -EINVAL;
1941 
1942         ret = toshiba_touchpad_set(toshiba, state);
1943         if (ret)
1944                 return ret;
1945 
1946         return count;
1947 }
1948 
1949 static ssize_t touchpad_show(struct device *dev,
1950                              struct device_attribute *attr, char *buf)
1951 {
1952         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1953         u32 state;
1954         int ret;
1955 
1956         ret = toshiba_touchpad_get(toshiba, &state);
1957         if (ret < 0)
1958                 return ret;
1959 
1960         return sprintf(buf, "%i\n", state);
1961 }
1962 static DEVICE_ATTR_RW(touchpad);
1963 
1964 static ssize_t usb_sleep_charge_show(struct device *dev,
1965                                      struct device_attribute *attr, char *buf)
1966 {
1967         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1968         u32 mode;
1969         int ret;
1970 
1971         ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
1972         if (ret < 0)
1973                 return ret;
1974 
1975         return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
1976 }
1977 
1978 static ssize_t usb_sleep_charge_store(struct device *dev,
1979                                       struct device_attribute *attr,
1980                                       const char *buf, size_t count)
1981 {
1982         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1983         u32 mode;
1984         int state;
1985         int ret;
1986 
1987         ret = kstrtoint(buf, 0, &state);
1988         if (ret)
1989                 return ret;
1990         /*
1991          * Check for supported values, where:
1992          * 0 - Disabled
1993          * 1 - Alternate (Non USB conformant devices that require more power)
1994          * 2 - Auto (USB conformant devices)
1995          * 3 - Typical
1996          */
1997         if (state != 0 && state != 1 && state != 2 && state != 3)
1998                 return -EINVAL;
1999 
2000         /* Set the USB charging mode to internal value */
2001         mode = toshiba->usbsc_mode_base;
2002         if (state == 0)
2003                 mode |= SCI_USB_CHARGE_DISABLED;
2004         else if (state == 1)
2005                 mode |= SCI_USB_CHARGE_ALTERNATE;
2006         else if (state == 2)
2007                 mode |= SCI_USB_CHARGE_AUTO;
2008         else if (state == 3)
2009                 mode |= SCI_USB_CHARGE_TYPICAL;
2010 
2011         ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2012         if (ret)
2013                 return ret;
2014 
2015         return count;
2016 }
2017 static DEVICE_ATTR_RW(usb_sleep_charge);
2018 
2019 static ssize_t sleep_functions_on_battery_show(struct device *dev,
2020                                                struct device_attribute *attr,
2021                                                char *buf)
2022 {
2023         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2024         u32 state;
2025         int bat_lvl;
2026         int status;
2027         int ret;
2028         int tmp;
2029 
2030         ret = toshiba_sleep_functions_status_get(toshiba, &state);
2031         if (ret < 0)
2032                 return ret;
2033 
2034         /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2035         tmp = state & SCI_USB_CHARGE_BAT_MASK;
2036         status = (tmp == 0x4) ? 1 : 0;
2037         /* Determine the battery level set */
2038         bat_lvl = state >> HCI_MISC_SHIFT;
2039 
2040         return sprintf(buf, "%d %d\n", status, bat_lvl);
2041 }
2042 
2043 static ssize_t sleep_functions_on_battery_store(struct device *dev,
2044                                                 struct device_attribute *attr,
2045                                                 const char *buf, size_t count)
2046 {
2047         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2048         u32 status;
2049         int value;
2050         int ret;
2051         int tmp;
2052 
2053         ret = kstrtoint(buf, 0, &value);
2054         if (ret)
2055                 return ret;
2056 
2057         /*
2058          * Set the status of the function:
2059          * 0 - Disabled
2060          * 1-100 - Enabled
2061          */
2062         if (value < 0 || value > 100)
2063                 return -EINVAL;
2064 
2065         if (value == 0) {
2066                 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2067                 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2068         } else {
2069                 tmp = value << HCI_MISC_SHIFT;
2070                 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2071         }
2072         ret = toshiba_sleep_functions_status_set(toshiba, status);
2073         if (ret < 0)
2074                 return ret;
2075 
2076         toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2077 
2078         return count;
2079 }
2080 static DEVICE_ATTR_RW(sleep_functions_on_battery);
2081 
2082 static ssize_t usb_rapid_charge_show(struct device *dev,
2083                                      struct device_attribute *attr, char *buf)
2084 {
2085         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2086         u32 state;
2087         int ret;
2088 
2089         ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2090         if (ret < 0)
2091                 return ret;
2092 
2093         return sprintf(buf, "%d\n", state);
2094 }
2095 
2096 static ssize_t usb_rapid_charge_store(struct device *dev,
2097                                       struct device_attribute *attr,
2098                                       const char *buf, size_t count)
2099 {
2100         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2101         int state;
2102         int ret;
2103 
2104         ret = kstrtoint(buf, 0, &state);
2105         if (ret)
2106                 return ret;
2107         if (state != 0 && state != 1)
2108                 return -EINVAL;
2109 
2110         ret = toshiba_usb_rapid_charge_set(toshiba, state);
2111         if (ret)
2112                 return ret;
2113 
2114         return count;
2115 }
2116 static DEVICE_ATTR_RW(usb_rapid_charge);
2117 
2118 static ssize_t usb_sleep_music_show(struct device *dev,
2119                                     struct device_attribute *attr, char *buf)
2120 {
2121         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2122         u32 state;
2123         int ret;
2124 
2125         ret = toshiba_usb_sleep_music_get(toshiba, &state);
2126         if (ret < 0)
2127                 return ret;
2128 
2129         return sprintf(buf, "%d\n", state);
2130 }
2131 
2132 static ssize_t usb_sleep_music_store(struct device *dev,
2133                                      struct device_attribute *attr,
2134                                      const char *buf, size_t count)
2135 {
2136         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2137         int state;
2138         int ret;
2139 
2140         ret = kstrtoint(buf, 0, &state);
2141         if (ret)
2142                 return ret;
2143         if (state != 0 && state != 1)
2144                 return -EINVAL;
2145 
2146         ret = toshiba_usb_sleep_music_set(toshiba, state);
2147         if (ret)
2148                 return ret;
2149 
2150         return count;
2151 }
2152 static DEVICE_ATTR_RW(usb_sleep_music);
2153 
2154 static ssize_t kbd_function_keys_show(struct device *dev,
2155                                       struct device_attribute *attr, char *buf)
2156 {
2157         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2158         int mode;
2159         int ret;
2160 
2161         ret = toshiba_function_keys_get(toshiba, &mode);
2162         if (ret < 0)
2163                 return ret;
2164 
2165         return sprintf(buf, "%d\n", mode);
2166 }
2167 
2168 static ssize_t kbd_function_keys_store(struct device *dev,
2169                                        struct device_attribute *attr,
2170                                        const char *buf, size_t count)
2171 {
2172         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2173         int mode;
2174         int ret;
2175 
2176         ret = kstrtoint(buf, 0, &mode);
2177         if (ret)
2178                 return ret;
2179         /*
2180          * Check for the function keys mode where:
2181          * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2182          * 1 - Special functions (Opposite of the above setting)
2183          */
2184         if (mode != 0 && mode != 1)
2185                 return -EINVAL;
2186 
2187         ret = toshiba_function_keys_set(toshiba, mode);
2188         if (ret)
2189                 return ret;
2190 
2191         pr_info("Reboot for changes to KBD Function Keys to take effect");
2192 
2193         return count;
2194 }
2195 static DEVICE_ATTR_RW(kbd_function_keys);
2196 
2197 static ssize_t panel_power_on_show(struct device *dev,
2198                                    struct device_attribute *attr, char *buf)
2199 {
2200         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2201         u32 state;
2202         int ret;
2203 
2204         ret = toshiba_panel_power_on_get(toshiba, &state);
2205         if (ret < 0)
2206                 return ret;
2207 
2208         return sprintf(buf, "%d\n", state);
2209 }
2210 
2211 static ssize_t panel_power_on_store(struct device *dev,
2212                                     struct device_attribute *attr,
2213                                     const char *buf, size_t count)
2214 {
2215         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2216         int state;
2217         int ret;
2218 
2219         ret = kstrtoint(buf, 0, &state);
2220         if (ret)
2221                 return ret;
2222         if (state != 0 && state != 1)
2223                 return -EINVAL;
2224 
2225         ret = toshiba_panel_power_on_set(toshiba, state);
2226         if (ret)
2227                 return ret;
2228 
2229         pr_info("Reboot for changes to Panel Power ON to take effect");
2230 
2231         return count;
2232 }
2233 static DEVICE_ATTR_RW(panel_power_on);
2234 
2235 static ssize_t usb_three_show(struct device *dev,
2236                               struct device_attribute *attr, char *buf)
2237 {
2238         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2239         u32 state;
2240         int ret;
2241 
2242         ret = toshiba_usb_three_get(toshiba, &state);
2243         if (ret < 0)
2244                 return ret;
2245 
2246         return sprintf(buf, "%d\n", state);
2247 }
2248 
2249 static ssize_t usb_three_store(struct device *dev,
2250                                struct device_attribute *attr,
2251                                const char *buf, size_t count)
2252 {
2253         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2254         int state;
2255         int ret;
2256 
2257         ret = kstrtoint(buf, 0, &state);
2258         if (ret)
2259                 return ret;
2260         /*
2261          * Check for USB 3 mode where:
2262          * 0 - Disabled (Acts like a USB 2 port, saving power)
2263          * 1 - Enabled
2264          */
2265         if (state != 0 && state != 1)
2266                 return -EINVAL;
2267 
2268         ret = toshiba_usb_three_set(toshiba, state);
2269         if (ret)
2270                 return ret;
2271 
2272         pr_info("Reboot for changes to USB 3 to take effect");
2273 
2274         return count;
2275 }
2276 static DEVICE_ATTR_RW(usb_three);
2277 
2278 static ssize_t cooling_method_show(struct device *dev,
2279                                    struct device_attribute *attr, char *buf)
2280 {
2281         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2282         int state;
2283         int ret;
2284 
2285         ret = toshiba_cooling_method_get(toshiba, &state);
2286         if (ret < 0)
2287                 return ret;
2288 
2289         return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2290 }
2291 
2292 static ssize_t cooling_method_store(struct device *dev,
2293                                     struct device_attribute *attr,
2294                                     const char *buf, size_t count)
2295 {
2296         struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2297         int state;
2298         int ret;
2299 
2300         ret = kstrtoint(buf, 0, &state);
2301         if (ret)
2302                 return ret;
2303 
2304         /*
2305          * Check for supported values
2306          * Depending on the laptop model, some only support these two:
2307          * 0 - Maximum Performance
2308          * 1 - Battery Optimized
2309          *
2310          * While some others support all three methods:
2311          * 0 - Maximum Performance
2312          * 1 - Performance
2313          * 2 - Battery Optimized
2314          */
2315         if (state < 0 || state > toshiba->max_cooling_method)
2316                 return -EINVAL;
2317 
2318         ret = toshiba_cooling_method_set(toshiba, state);
2319         if (ret)
2320                 return ret;
2321 
2322         return count;
2323 }
2324 static DEVICE_ATTR_RW(cooling_method);
2325 
2326 static struct attribute *toshiba_attributes[] = {
2327         &dev_attr_version.attr,
2328         &dev_attr_fan.attr,
2329         &dev_attr_kbd_backlight_mode.attr,
2330         &dev_attr_kbd_type.attr,
2331         &dev_attr_available_kbd_modes.attr,
2332         &dev_attr_kbd_backlight_timeout.attr,
2333         &dev_attr_touchpad.attr,
2334         &dev_attr_usb_sleep_charge.attr,
2335         &dev_attr_sleep_functions_on_battery.attr,
2336         &dev_attr_usb_rapid_charge.attr,
2337         &dev_attr_usb_sleep_music.attr,
2338         &dev_attr_kbd_function_keys.attr,
2339         &dev_attr_panel_power_on.attr,
2340         &dev_attr_usb_three.attr,
2341         &dev_attr_cooling_method.attr,
2342         NULL,
2343 };
2344 
2345 static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2346                                         struct attribute *attr, int idx)
2347 {
2348         struct device *dev = container_of(kobj, struct device, kobj);
2349         struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2350         bool exists = true;
2351 
2352         if (attr == &dev_attr_fan.attr)
2353                 exists = (drv->fan_supported) ? true : false;
2354         else if (attr == &dev_attr_kbd_backlight_mode.attr)
2355                 exists = (drv->kbd_illum_supported) ? true : false;
2356         else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2357                 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2358         else if (attr == &dev_attr_touchpad.attr)
2359                 exists = (drv->touchpad_supported) ? true : false;
2360         else if (attr == &dev_attr_usb_sleep_charge.attr)
2361                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2362         else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2363                 exists = (drv->usb_sleep_charge_supported) ? true : false;
2364         else if (attr == &dev_attr_usb_rapid_charge.attr)
2365                 exists = (drv->usb_rapid_charge_supported) ? true : false;
2366         else if (attr == &dev_attr_usb_sleep_music.attr)
2367                 exists = (drv->usb_sleep_music_supported) ? true : false;
2368         else if (attr == &dev_attr_kbd_function_keys.attr)
2369                 exists = (drv->kbd_function_keys_supported) ? true : false;
2370         else if (attr == &dev_attr_panel_power_on.attr)
2371                 exists = (drv->panel_power_on_supported) ? true : false;
2372         else if (attr == &dev_attr_usb_three.attr)
2373                 exists = (drv->usb_three_supported) ? true : false;
2374         else if (attr == &dev_attr_cooling_method.attr)
2375                 exists = (drv->cooling_method_supported) ? true : false;
2376 
2377         return exists ? attr->mode : 0;
2378 }
2379 
2380 static struct attribute_group toshiba_attr_group = {
2381         .is_visible = toshiba_sysfs_is_visible,
2382         .attrs = toshiba_attributes,
2383 };
2384 
2385 static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2386 {
2387         struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2388 
2389         /* Update the sysfs entries */
2390         if (sysfs_update_group(&acpi_dev->dev.kobj,
2391                                &toshiba_attr_group))
2392                 pr_err("Unable to update sysfs entries\n");
2393 
2394         /* Emulate the keyboard backlight event */
2395         acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2396                                         dev_name(&acpi_dev->dev),
2397                                         0x92, 0);
2398 }
2399 
2400 /*
2401  * IIO device
2402  */
2403 
2404 enum toshiba_iio_accel_chan {
2405         AXIS_X,
2406         AXIS_Y,
2407         AXIS_Z
2408 };
2409 
2410 static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2411 {
2412         u32 xyval, zval;
2413         int ret;
2414 
2415         ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2416         if (ret < 0)
2417                 return ret;
2418 
2419         switch (chan) {
2420         case AXIS_X:
2421                 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2422                         -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2423         case AXIS_Y:
2424                 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2425                         -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2426                         (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2427         case AXIS_Z:
2428                 return zval & HCI_ACCEL_DIRECTION_MASK ?
2429                         -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2430         }
2431 
2432         return ret;
2433 }
2434 
2435 static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2436                                       struct iio_chan_spec const *chan,
2437                                       int *val, int *val2, long mask)
2438 {
2439         int ret;
2440 
2441         switch (mask) {
2442         case IIO_CHAN_INFO_RAW:
2443                 ret = toshiba_iio_accel_get_axis(chan->channel);
2444                 if (ret == -EIO || ret == -ENODEV)
2445                         return ret;
2446 
2447                 *val = ret;
2448 
2449                 return IIO_VAL_INT;
2450         }
2451 
2452         return -EINVAL;
2453 }
2454 
2455 #define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2456         .type = IIO_ACCEL, \
2457         .modified = 1, \
2458         .channel = chan, \
2459         .channel2 = IIO_MOD_##axis, \
2460         .output = 1, \
2461         .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2462 }
2463 
2464 static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2465         TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2466         TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2467         TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2468 };
2469 
2470 static const struct iio_info toshiba_iio_accel_info = {
2471         .driver_module = THIS_MODULE,
2472         .read_raw = &toshiba_iio_accel_read_raw,
2473 };
2474 
2475 /*
2476  * Misc device
2477  */
2478 static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2479 {
2480         u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2481                               regs->edx, regs->esi, regs->edi };
2482         u32 out[TCI_WORDS];
2483         acpi_status status;
2484 
2485         status = tci_raw(toshiba_acpi, in, out);
2486         if (ACPI_FAILURE(status)) {
2487                 pr_err("ACPI call to query SMM registers failed\n");
2488                 return -EIO;
2489         }
2490 
2491         /* Fillout the SMM struct with the TCI call results */
2492         regs->eax = out[0];
2493         regs->ebx = out[1];
2494         regs->ecx = out[2];
2495         regs->edx = out[3];
2496         regs->esi = out[4];
2497         regs->edi = out[5];
2498 
2499         return 0;
2500 }
2501 
2502 static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2503                                unsigned long arg)
2504 {
2505         SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2506         SMMRegisters regs;
2507         int ret;
2508 
2509         if (!argp)
2510                 return -EINVAL;
2511 
2512         switch (cmd) {
2513         case TOSH_SMM:
2514                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2515                         return -EFAULT;
2516                 ret = toshiba_acpi_smm_bridge(&regs);
2517                 if (ret)
2518                         return ret;
2519                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2520                         return -EFAULT;
2521                 break;
2522         case TOSHIBA_ACPI_SCI:
2523                 if (copy_from_user(&regs, argp, sizeof(SMMRegisters)))
2524                         return -EFAULT;
2525                 /* Ensure we are being called with a SCI_{GET, SET} register */
2526                 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2527                         return -EINVAL;
2528                 if (!sci_open(toshiba_acpi))
2529                         return -EIO;
2530                 ret = toshiba_acpi_smm_bridge(&regs);
2531                 sci_close(toshiba_acpi);
2532                 if (ret)
2533                         return ret;
2534                 if (copy_to_user(argp, &regs, sizeof(SMMRegisters)))
2535                         return -EFAULT;
2536                 break;
2537         default:
2538                 return -EINVAL;
2539         }
2540 
2541         return 0;
2542 }
2543 
2544 static const struct file_operations toshiba_acpi_fops = {
2545         .owner          = THIS_MODULE,
2546         .unlocked_ioctl = toshiba_acpi_ioctl,
2547         .llseek         = noop_llseek,
2548 };
2549 
2550 /*
2551  * WWAN RFKill handlers
2552  */
2553 static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2554 {
2555         struct toshiba_acpi_dev *dev = data;
2556         int ret;
2557 
2558         ret = toshiba_wireless_status(dev);
2559         if (ret)
2560                 return ret;
2561 
2562         if (!dev->killswitch)
2563                 return 0;
2564 
2565         return toshiba_wwan_set(dev, !blocked);
2566 }
2567 
2568 static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2569 {
2570         struct toshiba_acpi_dev *dev = data;
2571 
2572         if (toshiba_wireless_status(dev))
2573                 return;
2574 
2575         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2576 }
2577 
2578 static const struct rfkill_ops wwan_rfk_ops = {
2579         .set_block = toshiba_acpi_wwan_set_block,
2580         .poll = toshiba_acpi_wwan_poll,
2581 };
2582 
2583 static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2584 {
2585         int ret = toshiba_wireless_status(dev);
2586 
2587         if (ret)
2588                 return ret;
2589 
2590         dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2591                                      &dev->acpi_dev->dev,
2592                                      RFKILL_TYPE_WWAN,
2593                                      &wwan_rfk_ops,
2594                                      dev);
2595         if (!dev->wwan_rfk) {
2596                 pr_err("Unable to allocate WWAN rfkill device\n");
2597                 return -ENOMEM;
2598         }
2599 
2600         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2601 
2602         ret = rfkill_register(dev->wwan_rfk);
2603         if (ret) {
2604                 pr_err("Unable to register WWAN rfkill device\n");
2605                 rfkill_destroy(dev->wwan_rfk);
2606         }
2607 
2608         return ret;
2609 }
2610 
2611 /*
2612  * Hotkeys
2613  */
2614 static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2615 {
2616         acpi_status status;
2617         u32 result;
2618 
2619         status = acpi_evaluate_object(dev->acpi_dev->handle,
2620                                       "ENAB", NULL, NULL);
2621         if (ACPI_FAILURE(status))
2622                 return -ENODEV;
2623 
2624         /*
2625          * Enable the "Special Functions" mode only if they are
2626          * supported and if they are activated.
2627          */
2628         if (dev->kbd_function_keys_supported && dev->special_functions)
2629                 result = hci_write(dev, HCI_HOTKEY_EVENT,
2630                                    HCI_HOTKEY_SPECIAL_FUNCTIONS);
2631         else
2632                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2633 
2634         if (result == TOS_FAILURE)
2635                 return -EIO;
2636         else if (result == TOS_NOT_SUPPORTED)
2637                 return -ENODEV;
2638 
2639         return 0;
2640 }
2641 
2642 static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2643                                       struct serio *port)
2644 {
2645         if (str & I8042_STR_AUXDATA)
2646                 return false;
2647 
2648         if (unlikely(data == 0xe0))
2649                 return false;
2650 
2651         if ((data & 0x7f) == TOS1900_FN_SCAN) {
2652                 schedule_work(&toshiba_acpi->hotkey_work);
2653                 return true;
2654         }
2655 
2656         return false;
2657 }
2658 
2659 static void toshiba_acpi_hotkey_work(struct work_struct *work)
2660 {
2661         acpi_handle ec_handle = ec_get_handle();
2662         acpi_status status;
2663 
2664         if (!ec_handle)
2665                 return;
2666 
2667         status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2668         if (ACPI_FAILURE(status))
2669                 pr_err("ACPI NTFY method execution failed\n");
2670 }
2671 
2672 /*
2673  * Returns hotkey scancode, or < 0 on failure.
2674  */
2675 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2676 {
2677         unsigned long long value;
2678         acpi_status status;
2679 
2680         status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2681                                       NULL, &value);
2682         if (ACPI_FAILURE(status)) {
2683                 pr_err("ACPI INFO method execution failed\n");
2684                 return -EIO;
2685         }
2686 
2687         return value;
2688 }
2689 
2690 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2691                                        int scancode)
2692 {
2693         if (scancode == 0x100)
2694                 return;
2695 
2696         /* Act on key press; ignore key release */
2697         if (scancode & 0x80)
2698                 return;
2699 
2700         if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2701                 pr_info("Unknown key %x\n", scancode);
2702 }
2703 
2704 static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2705 {
2706         if (dev->info_supported) {
2707                 int scancode = toshiba_acpi_query_hotkey(dev);
2708 
2709                 if (scancode < 0) {
2710                         pr_err("Failed to query hotkey event\n");
2711                 } else if (scancode != 0) {
2712                         toshiba_acpi_report_hotkey(dev, scancode);
2713                         dev->key_event_valid = 1;
2714                         dev->last_key_event = scancode;
2715                 }
2716         } else if (dev->system_event_supported) {
2717                 u32 result;
2718                 u32 value;
2719                 int retries = 3;
2720 
2721                 do {
2722                         result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2723                         switch (result) {
2724                         case TOS_SUCCESS:
2725                                 toshiba_acpi_report_hotkey(dev, (int)value);
2726                                 dev->key_event_valid = 1;
2727                                 dev->last_key_event = value;
2728                                 break;
2729                         case TOS_NOT_SUPPORTED:
2730                                 /*
2731                                  * This is a workaround for an unresolved
2732                                  * issue on some machines where system events
2733                                  * sporadically become disabled.
2734                                  */
2735                                 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2736                                 if (result == TOS_SUCCESS)
2737                                         pr_notice("Re-enabled hotkeys\n");
2738                                 /* Fall through */
2739                         default:
2740                                 retries--;
2741                                 break;
2742                         }
2743                 } while (retries && result != TOS_FIFO_EMPTY);
2744         }
2745 }
2746 
2747 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2748 {
2749         const struct key_entry *keymap = toshiba_acpi_keymap;
2750         acpi_handle ec_handle;
2751         int error;
2752 
2753         if (disable_hotkeys) {
2754                 pr_info("Hotkeys disabled by module parameter\n");
2755                 return 0;
2756         }
2757 
2758         if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2759                 pr_info("WMI event detected, hotkeys will not be monitored\n");
2760                 return 0;
2761         }
2762 
2763         error = toshiba_acpi_enable_hotkeys(dev);
2764         if (error)
2765                 return error;
2766 
2767         if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2768                 pr_notice("Unable to query Hotkey Event Type\n");
2769 
2770         dev->hotkey_dev = input_allocate_device();
2771         if (!dev->hotkey_dev)
2772                 return -ENOMEM;
2773 
2774         dev->hotkey_dev->name = "Toshiba input device";
2775         dev->hotkey_dev->phys = "toshiba_acpi/input0";
2776         dev->hotkey_dev->id.bustype = BUS_HOST;
2777 
2778         if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2779             !dev->kbd_function_keys_supported)
2780                 keymap = toshiba_acpi_keymap;
2781         else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2782                  dev->kbd_function_keys_supported)
2783                 keymap = toshiba_acpi_alt_keymap;
2784         else
2785                 pr_info("Unknown event type received %x\n",
2786                         dev->hotkey_event_type);
2787         error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2788         if (error)
2789                 goto err_free_dev;
2790 
2791         /*
2792          * For some machines the SCI responsible for providing hotkey
2793          * notification doesn't fire. We can trigger the notification
2794          * whenever the Fn key is pressed using the NTFY method, if
2795          * supported, so if it's present set up an i8042 key filter
2796          * for this purpose.
2797          */
2798         ec_handle = ec_get_handle();
2799         if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2800                 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2801 
2802                 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2803                 if (error) {
2804                         pr_err("Error installing key filter\n");
2805                         goto err_free_keymap;
2806                 }
2807 
2808                 dev->ntfy_supported = 1;
2809         }
2810 
2811         /*
2812          * Determine hotkey query interface. Prefer using the INFO
2813          * method when it is available.
2814          */
2815         if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2816                 dev->info_supported = 1;
2817         else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2818                 dev->system_event_supported = 1;
2819 
2820         if (!dev->info_supported && !dev->system_event_supported) {
2821                 pr_warn("No hotkey query interface found\n");
2822                 goto err_remove_filter;
2823         }
2824 
2825         error = input_register_device(dev->hotkey_dev);
2826         if (error) {
2827                 pr_info("Unable to register input device\n");
2828                 goto err_remove_filter;
2829         }
2830 
2831         return 0;
2832 
2833  err_remove_filter:
2834         if (dev->ntfy_supported)
2835                 i8042_remove_filter(toshiba_acpi_i8042_filter);
2836  err_free_keymap:
2837         sparse_keymap_free(dev->hotkey_dev);
2838  err_free_dev:
2839         input_free_device(dev->hotkey_dev);
2840         dev->hotkey_dev = NULL;
2841         return error;
2842 }
2843 
2844 static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2845 {
2846         struct backlight_properties props;
2847         int brightness;
2848         int ret;
2849 
2850         /*
2851          * Some machines don't support the backlight methods at all, and
2852          * others support it read-only. Either of these is pretty useless,
2853          * so only register the backlight device if the backlight method
2854          * supports both reads and writes.
2855          */
2856         brightness = __get_lcd_brightness(dev);
2857         if (brightness < 0)
2858                 return 0;
2859         /*
2860          * If transflective backlight is supported and the brightness is zero
2861          * (lowest brightness level), the set_lcd_brightness function will
2862          * activate the transflective backlight, making the LCD appear to be
2863          * turned off, simply increment the brightness level to avoid that.
2864          */
2865         if (dev->tr_backlight_supported && brightness == 0)
2866                 brightness++;
2867         ret = set_lcd_brightness(dev, brightness);
2868         if (ret) {
2869                 pr_debug("Backlight method is read-only, disabling backlight support\n");
2870                 return 0;
2871         }
2872 
2873         /*
2874          * Tell acpi-video-detect code to prefer vendor backlight on all
2875          * systems with transflective backlight and on dmi matched systems.
2876          */
2877         if (dev->tr_backlight_supported ||
2878             dmi_check_system(toshiba_vendor_backlight_dmi))
2879                 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2880 
2881         if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2882                 return 0;
2883 
2884         memset(&props, 0, sizeof(props));
2885         props.type = BACKLIGHT_PLATFORM;
2886         props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2887 
2888         /* Adding an extra level and having 0 change to transflective mode */
2889         if (dev->tr_backlight_supported)
2890                 props.max_brightness++;
2891 
2892         dev->backlight_dev = backlight_device_register("toshiba",
2893                                                        &dev->acpi_dev->dev,
2894                                                        dev,
2895                                                        &toshiba_backlight_data,
2896                                                        &props);
2897         if (IS_ERR(dev->backlight_dev)) {
2898                 ret = PTR_ERR(dev->backlight_dev);
2899                 pr_err("Could not register toshiba backlight device\n");
2900                 dev->backlight_dev = NULL;
2901                 return ret;
2902         }
2903 
2904         dev->backlight_dev->props.brightness = brightness;
2905         return 0;
2906 }
2907 
2908 static void print_supported_features(struct toshiba_acpi_dev *dev)
2909 {
2910         pr_info("Supported laptop features:");
2911 
2912         if (dev->hotkey_dev)
2913                 pr_cont(" hotkeys");
2914         if (dev->backlight_dev)
2915                 pr_cont(" backlight");
2916         if (dev->video_supported)
2917                 pr_cont(" video-out");
2918         if (dev->fan_supported)
2919                 pr_cont(" fan");
2920         if (dev->tr_backlight_supported)
2921                 pr_cont(" transflective-backlight");
2922         if (dev->illumination_supported)
2923                 pr_cont(" illumination");
2924         if (dev->kbd_illum_supported)
2925                 pr_cont(" keyboard-backlight");
2926         if (dev->touchpad_supported)
2927                 pr_cont(" touchpad");
2928         if (dev->eco_supported)
2929                 pr_cont(" eco-led");
2930         if (dev->accelerometer_supported)
2931                 pr_cont(" accelerometer-axes");
2932         if (dev->usb_sleep_charge_supported)
2933                 pr_cont(" usb-sleep-charge");
2934         if (dev->usb_rapid_charge_supported)
2935                 pr_cont(" usb-rapid-charge");
2936         if (dev->usb_sleep_music_supported)
2937                 pr_cont(" usb-sleep-music");
2938         if (dev->kbd_function_keys_supported)
2939                 pr_cont(" special-function-keys");
2940         if (dev->panel_power_on_supported)
2941                 pr_cont(" panel-power-on");
2942         if (dev->usb_three_supported)
2943                 pr_cont(" usb3");
2944         if (dev->wwan_supported)
2945                 pr_cont(" wwan");
2946         if (dev->cooling_method_supported)
2947                 pr_cont(" cooling-method");
2948 
2949         pr_cont("\n");
2950 }
2951 
2952 static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2953 {
2954         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2955 
2956         misc_deregister(&dev->miscdev);
2957 
2958         remove_toshiba_proc_entries(dev);
2959 
2960         if (dev->accelerometer_supported && dev->indio_dev) {
2961                 iio_device_unregister(dev->indio_dev);
2962                 iio_device_free(dev->indio_dev);
2963         }
2964 
2965         if (dev->sysfs_created)
2966                 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
2967                                    &toshiba_attr_group);
2968 
2969         if (dev->ntfy_supported) {
2970                 i8042_remove_filter(toshiba_acpi_i8042_filter);
2971                 cancel_work_sync(&dev->hotkey_work);
2972         }
2973 
2974         if (dev->hotkey_dev) {
2975                 input_unregister_device(dev->hotkey_dev);
2976                 sparse_keymap_free(dev->hotkey_dev);
2977         }
2978 
2979         backlight_device_unregister(dev->backlight_dev);
2980 
2981         if (dev->illumination_led_registered)
2982                 led_classdev_unregister(&dev->led_dev);
2983 
2984         if (dev->kbd_led_registered)
2985                 led_classdev_unregister(&dev->kbd_led);
2986 
2987         if (dev->eco_led_registered)
2988                 led_classdev_unregister(&dev->eco_led);
2989 
2990         if (dev->wwan_rfk) {
2991                 rfkill_unregister(dev->wwan_rfk);
2992                 rfkill_destroy(dev->wwan_rfk);
2993         }
2994 
2995         if (toshiba_acpi)
2996                 toshiba_acpi = NULL;
2997 
2998         kfree(dev);
2999 
3000         return 0;
3001 }
3002 
3003 static const char *find_hci_method(acpi_handle handle)
3004 {
3005         if (acpi_has_method(handle, "GHCI"))
3006                 return "GHCI";
3007 
3008         if (acpi_has_method(handle, "SPFC"))
3009                 return "SPFC";
3010 
3011         return NULL;
3012 }
3013 
3014 static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3015 {
3016         struct toshiba_acpi_dev *dev;
3017         const char *hci_method;
3018         u32 dummy;
3019         int ret = 0;
3020 
3021         if (toshiba_acpi)
3022                 return -EBUSY;
3023 
3024         pr_info("Toshiba Laptop ACPI Extras version %s\n",
3025                TOSHIBA_ACPI_VERSION);
3026 
3027         hci_method = find_hci_method(acpi_dev->handle);
3028         if (!hci_method) {
3029                 pr_err("HCI interface not found\n");
3030                 return -ENODEV;
3031         }
3032 
3033         dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3034         if (!dev)
3035                 return -ENOMEM;
3036         dev->acpi_dev = acpi_dev;
3037         dev->method_hci = hci_method;
3038         dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3039         dev->miscdev.name = "toshiba_acpi";
3040         dev->miscdev.fops = &toshiba_acpi_fops;
3041 
3042         ret = misc_register(&dev->miscdev);
3043         if (ret) {
3044                 pr_err("Failed to register miscdevice\n");
3045                 kfree(dev);
3046                 return ret;
3047         }
3048 
3049         acpi_dev->driver_data = dev;
3050         dev_set_drvdata(&acpi_dev->dev, dev);
3051 
3052         /* Query the BIOS for supported features */
3053 
3054         /*
3055          * The "Special Functions" are always supported by the laptops
3056          * with the new keyboard layout, query for its presence to help
3057          * determine the keymap layout to use.
3058          */
3059         ret = toshiba_function_keys_get(dev, &dev->special_functions);
3060         dev->kbd_function_keys_supported = !ret;
3061 
3062         dev->hotkey_event_type = 0;
3063         if (toshiba_acpi_setup_keyboard(dev))
3064                 pr_info("Unable to activate hotkeys\n");
3065 
3066         /* Determine whether or not BIOS supports transflective backlight */
3067         ret = get_tr_backlight_status(dev, &dummy);
3068         dev->tr_backlight_supported = !ret;
3069 
3070         ret = toshiba_acpi_setup_backlight(dev);
3071         if (ret)
3072                 goto error;
3073 
3074         toshiba_illumination_available(dev);
3075         if (dev->illumination_supported) {
3076                 dev->led_dev.name = "toshiba::illumination";
3077                 dev->led_dev.max_brightness = 1;
3078                 dev->led_dev.brightness_set = toshiba_illumination_set;
3079                 dev->led_dev.brightness_get = toshiba_illumination_get;
3080                 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3081                         dev->illumination_led_registered = true;
3082         }
3083 
3084         toshiba_eco_mode_available(dev);
3085         if (dev->eco_supported) {
3086                 dev->eco_led.name = "toshiba::eco_mode";
3087                 dev->eco_led.max_brightness = 1;
3088                 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3089                 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3090                 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3091                         dev->eco_led_registered = true;
3092         }
3093 
3094         toshiba_kbd_illum_available(dev);
3095         /*
3096          * Only register the LED if KBD illumination is supported
3097          * and the keyboard backlight operation mode is set to FN-Z
3098          */
3099         if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
3100                 dev->kbd_led.name = "toshiba::kbd_backlight";
3101                 dev->kbd_led.max_brightness = 1;
3102                 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3103                 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3104                 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3105                         dev->kbd_led_registered = true;
3106         }
3107 
3108         ret = toshiba_touchpad_get(dev, &dummy);
3109         dev->touchpad_supported = !ret;
3110 
3111         toshiba_accelerometer_available(dev);
3112         if (dev->accelerometer_supported) {
3113                 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3114                 if (!dev->indio_dev) {
3115                         pr_err("Unable to allocate iio device\n");
3116                         goto iio_error;
3117                 }
3118 
3119                 pr_info("Registering Toshiba accelerometer iio device\n");
3120 
3121                 dev->indio_dev->info = &toshiba_iio_accel_info;
3122                 dev->indio_dev->name = "Toshiba accelerometer";
3123                 dev->indio_dev->dev.parent = &acpi_dev->dev;
3124                 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3125                 dev->indio_dev->channels = toshiba_iio_accel_channels;
3126                 dev->indio_dev->num_channels =
3127                                         ARRAY_SIZE(toshiba_iio_accel_channels);
3128 
3129                 ret = iio_device_register(dev->indio_dev);
3130                 if (ret < 0) {
3131                         pr_err("Unable to register iio device\n");
3132                         iio_device_free(dev->indio_dev);
3133                 }
3134         }
3135 iio_error:
3136 
3137         toshiba_usb_sleep_charge_available(dev);
3138 
3139         ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3140         dev->usb_rapid_charge_supported = !ret;
3141 
3142         ret = toshiba_usb_sleep_music_get(dev, &dummy);
3143         dev->usb_sleep_music_supported = !ret;
3144 
3145         ret = toshiba_panel_power_on_get(dev, &dummy);
3146         dev->panel_power_on_supported = !ret;
3147 
3148         ret = toshiba_usb_three_get(dev, &dummy);
3149         dev->usb_three_supported = !ret;
3150 
3151         ret = get_video_status(dev, &dummy);
3152         dev->video_supported = !ret;
3153 
3154         ret = get_fan_status(dev, &dummy);
3155         dev->fan_supported = !ret;
3156 
3157         toshiba_wwan_available(dev);
3158         if (dev->wwan_supported)
3159                 toshiba_acpi_setup_wwan_rfkill(dev);
3160 
3161         toshiba_cooling_method_available(dev);
3162 
3163         print_supported_features(dev);
3164 
3165         ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3166                                  &toshiba_attr_group);
3167         if (ret) {
3168                 dev->sysfs_created = 0;
3169                 goto error;
3170         }
3171         dev->sysfs_created = !ret;
3172 
3173         create_toshiba_proc_entries(dev);
3174 
3175         toshiba_acpi = dev;
3176 
3177         return 0;
3178 
3179 error:
3180         toshiba_acpi_remove(acpi_dev);
3181         return ret;
3182 }
3183 
3184 static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3185 {
3186         struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3187 
3188         switch (event) {
3189         case 0x80: /* Hotkeys and some system events */
3190                 /*
3191                  * Machines with this WMI GUID aren't supported due to bugs in
3192                  * their AML.
3193                  *
3194                  * Return silently to avoid triggering a netlink event.
3195                  */
3196                 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3197                         return;
3198                 toshiba_acpi_process_hotkeys(dev);
3199                 break;
3200         case 0x81: /* Dock events */
3201         case 0x82:
3202         case 0x83:
3203                 pr_info("Dock event received %x\n", event);
3204                 break;
3205         case 0x88: /* Thermal events */
3206                 pr_info("Thermal event received\n");
3207                 break;
3208         case 0x8f: /* LID closed */
3209         case 0x90: /* LID is closed and Dock has been ejected */
3210                 break;
3211         case 0x8c: /* SATA power events */
3212         case 0x8b:
3213                 pr_info("SATA power event received %x\n", event);
3214                 break;
3215         case 0x92: /* Keyboard backlight mode changed */
3216                 toshiba_acpi->kbd_event_generated = true;
3217                 /* Update sysfs entries */
3218                 if (sysfs_update_group(&acpi_dev->dev.kobj,
3219                                        &toshiba_attr_group))
3220                         pr_err("Unable to update sysfs entries\n");
3221                 break;
3222         case 0x85: /* Unknown */
3223         case 0x8d: /* Unknown */
3224         case 0x8e: /* Unknown */
3225         case 0x94: /* Unknown */
3226         case 0x95: /* Unknown */
3227         default:
3228                 pr_info("Unknown event received %x\n", event);
3229                 break;
3230         }
3231 
3232         acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3233                                         dev_name(&acpi_dev->dev),
3234                                         event, (event == 0x80) ?
3235                                         dev->last_key_event : 0);
3236 }
3237 
3238 #ifdef CONFIG_PM_SLEEP
3239 static int toshiba_acpi_suspend(struct device *device)
3240 {
3241         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3242 
3243         if (dev->hotkey_dev) {
3244                 u32 result;
3245 
3246                 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3247                 if (result != TOS_SUCCESS)
3248                         pr_info("Unable to disable hotkeys\n");
3249         }
3250 
3251         return 0;
3252 }
3253 
3254 static int toshiba_acpi_resume(struct device *device)
3255 {
3256         struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3257 
3258         if (dev->hotkey_dev) {
3259                 if (toshiba_acpi_enable_hotkeys(dev))
3260                         pr_info("Unable to re-enable hotkeys\n");
3261         }
3262 
3263         if (dev->wwan_rfk) {
3264                 if (!toshiba_wireless_status(dev))
3265                         rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3266         }
3267 
3268         return 0;
3269 }
3270 #endif
3271 
3272 static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3273                          toshiba_acpi_suspend, toshiba_acpi_resume);
3274 
3275 static struct acpi_driver toshiba_acpi_driver = {
3276         .name   = "Toshiba ACPI driver",
3277         .owner  = THIS_MODULE,
3278         .ids    = toshiba_device_ids,
3279         .flags  = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3280         .ops    = {
3281                 .add            = toshiba_acpi_add,
3282                 .remove         = toshiba_acpi_remove,
3283                 .notify         = toshiba_acpi_notify,
3284         },
3285         .drv.pm = &toshiba_acpi_pm,
3286 };
3287 
3288 static int __init toshiba_acpi_init(void)
3289 {
3290         int ret;
3291 
3292         toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3293         if (!toshiba_proc_dir) {
3294                 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3295                 return -ENODEV;
3296         }
3297 
3298         ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3299         if (ret) {
3300                 pr_err("Failed to register ACPI driver: %d\n", ret);
3301                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3302         }
3303 
3304         return ret;
3305 }
3306 
3307 static void __exit toshiba_acpi_exit(void)
3308 {
3309         acpi_bus_unregister_driver(&toshiba_acpi_driver);
3310         if (toshiba_proc_dir)
3311                 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3312 }
3313 
3314 module_init(toshiba_acpi_init);
3315 module_exit(toshiba_acpi_exit);
3316 

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