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1/*
2 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
3 *
4 *
5 * Copyright (C) 2002-2004 John Belmonte
6 * Copyright (C) 2008 Philip Langdale
7 * Copyright (C) 2010 Pierre Ducroquet
8 *
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 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 *
24 * The devolpment page for this driver is located at
25 * http://memebeam.org/toys/ToshibaAcpiDriver.
26 *
27 * Credits:
28 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
29 * engineering the Windows drivers
30 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
31 * Rob Miller - TV out and hotkeys help
32 *
33 *
34 * TODO
35 *
36 */
37
38#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
39
40#define TOSHIBA_ACPI_VERSION "0.19"
41#define PROC_INTERFACE_VERSION 1
42
43#include <linux/kernel.h>
44#include <linux/module.h>
45#include <linux/init.h>
46#include <linux/types.h>
47#include <linux/proc_fs.h>
48#include <linux/seq_file.h>
49#include <linux/backlight.h>
50#include <linux/platform_device.h>
51#include <linux/rfkill.h>
52#include <linux/input.h>
53#include <linux/input/sparse-keymap.h>
54#include <linux/leds.h>
55#include <linux/slab.h>
56
57#include <asm/uaccess.h>
58
59#include <acpi/acpi_drivers.h>
60
61MODULE_AUTHOR("John Belmonte");
62MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
63MODULE_LICENSE("GPL");
64
65/* Toshiba ACPI method paths */
66#define METHOD_LCD_BRIGHTNESS "\\_SB_.PCI0.VGA_.LCD_._BCM"
67#define TOSH_INTERFACE_1 "\\_SB_.VALD"
68#define TOSH_INTERFACE_2 "\\_SB_.VALZ"
69#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
70#define GHCI_METHOD ".GHCI"
71
72/* Toshiba HCI interface definitions
73 *
74 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
75 * be uniform across all their models. Ideally we would just call
76 * dedicated ACPI methods instead of using this primitive interface.
77 * However the ACPI methods seem to be incomplete in some areas (for
78 * example they allow setting, but not reading, the LCD brightness value),
79 * so this is still useful.
80 */
81
82#define HCI_WORDS 6
83
84/* operations */
85#define HCI_SET 0xff00
86#define HCI_GET 0xfe00
87
88/* return codes */
89#define HCI_SUCCESS 0x0000
90#define HCI_FAILURE 0x1000
91#define HCI_NOT_SUPPORTED 0x8000
92#define HCI_EMPTY 0x8c00
93
94/* registers */
95#define HCI_FAN 0x0004
96#define HCI_SYSTEM_EVENT 0x0016
97#define HCI_VIDEO_OUT 0x001c
98#define HCI_HOTKEY_EVENT 0x001e
99#define HCI_LCD_BRIGHTNESS 0x002a
100#define HCI_WIRELESS 0x0056
101
102/* field definitions */
103#define HCI_LCD_BRIGHTNESS_BITS 3
104#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
105#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
106#define HCI_VIDEO_OUT_LCD 0x1
107#define HCI_VIDEO_OUT_CRT 0x2
108#define HCI_VIDEO_OUT_TV 0x4
109#define HCI_WIRELESS_KILL_SWITCH 0x01
110#define HCI_WIRELESS_BT_PRESENT 0x0f
111#define HCI_WIRELESS_BT_ATTACH 0x40
112#define HCI_WIRELESS_BT_POWER 0x80
113
114static const struct acpi_device_id toshiba_device_ids[] = {
115 {"TOS6200", 0},
116 {"TOS6208", 0},
117 {"TOS1900", 0},
118 {"", 0},
119};
120MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
121
122static const struct key_entry toshiba_acpi_keymap[] __initconst = {
123 { KE_KEY, 0x101, { KEY_MUTE } },
124 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
125 { KE_KEY, 0x103, { KEY_ZOOMIN } },
126 { KE_KEY, 0x13b, { KEY_COFFEE } },
127 { KE_KEY, 0x13c, { KEY_BATTERY } },
128 { KE_KEY, 0x13d, { KEY_SLEEP } },
129 { KE_KEY, 0x13e, { KEY_SUSPEND } },
130 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
131 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
132 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
133 { KE_KEY, 0x142, { KEY_WLAN } },
134 { KE_KEY, 0x143, { KEY_PROG1 } },
135 { KE_KEY, 0x17f, { KEY_FN } },
136 { KE_KEY, 0xb05, { KEY_PROG2 } },
137 { KE_KEY, 0xb06, { KEY_WWW } },
138 { KE_KEY, 0xb07, { KEY_MAIL } },
139 { KE_KEY, 0xb30, { KEY_STOP } },
140 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
141 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
142 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
143 { KE_KEY, 0xb5a, { KEY_MEDIA } },
144 { KE_END, 0 },
145};
146
147/* utility
148 */
149
150static __inline__ void _set_bit(u32 * word, u32 mask, int value)
151{
152 *word = (*word & ~mask) | (mask * value);
153}
154
155/* acpi interface wrappers
156 */
157
158static int is_valid_acpi_path(const char *methodName)
159{
160 acpi_handle handle;
161 acpi_status status;
162
163 status = acpi_get_handle(NULL, (char *)methodName, &handle);
164 return !ACPI_FAILURE(status);
165}
166
167static int write_acpi_int(const char *methodName, int val)
168{
169 struct acpi_object_list params;
170 union acpi_object in_objs[1];
171 acpi_status status;
172
173 params.count = ARRAY_SIZE(in_objs);
174 params.pointer = in_objs;
175 in_objs[0].type = ACPI_TYPE_INTEGER;
176 in_objs[0].integer.value = val;
177
178 status = acpi_evaluate_object(NULL, (char *)methodName, ¶ms, NULL);
179 return (status == AE_OK);
180}
181
182#if 0
183static int read_acpi_int(const char *methodName, int *pVal)
184{
185 struct acpi_buffer results;
186 union acpi_object out_objs[1];
187 acpi_status status;
188
189 results.length = sizeof(out_objs);
190 results.pointer = out_objs;
191
192 status = acpi_evaluate_object(0, (char *)methodName, 0, &results);
193 *pVal = out_objs[0].integer.value;
194
195 return (status == AE_OK) && (out_objs[0].type == ACPI_TYPE_INTEGER);
196}
197#endif
198
199static const char *method_hci /*= 0*/ ;
200
201/* Perform a raw HCI call. Here we don't care about input or output buffer
202 * format.
203 */
204static acpi_status hci_raw(const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
205{
206 struct acpi_object_list params;
207 union acpi_object in_objs[HCI_WORDS];
208 struct acpi_buffer results;
209 union acpi_object out_objs[HCI_WORDS + 1];
210 acpi_status status;
211 int i;
212
213 params.count = HCI_WORDS;
214 params.pointer = in_objs;
215 for (i = 0; i < HCI_WORDS; ++i) {
216 in_objs[i].type = ACPI_TYPE_INTEGER;
217 in_objs[i].integer.value = in[i];
218 }
219
220 results.length = sizeof(out_objs);
221 results.pointer = out_objs;
222
223 status = acpi_evaluate_object(NULL, (char *)method_hci, ¶ms,
224 &results);
225 if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
226 for (i = 0; i < out_objs->package.count; ++i) {
227 out[i] = out_objs->package.elements[i].integer.value;
228 }
229 }
230
231 return status;
232}
233
234/* common hci tasks (get or set one or two value)
235 *
236 * In addition to the ACPI status, the HCI system returns a result which
237 * may be useful (such as "not supported").
238 */
239
240static acpi_status hci_write1(u32 reg, u32 in1, u32 * result)
241{
242 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
243 u32 out[HCI_WORDS];
244 acpi_status status = hci_raw(in, out);
245 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
246 return status;
247}
248
249static acpi_status hci_read1(u32 reg, u32 * out1, u32 * result)
250{
251 u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
252 u32 out[HCI_WORDS];
253 acpi_status status = hci_raw(in, out);
254 *out1 = out[2];
255 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
256 return status;
257}
258
259static acpi_status hci_write2(u32 reg, u32 in1, u32 in2, u32 *result)
260{
261 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
262 u32 out[HCI_WORDS];
263 acpi_status status = hci_raw(in, out);
264 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
265 return status;
266}
267
268static acpi_status hci_read2(u32 reg, u32 *out1, u32 *out2, u32 *result)
269{
270 u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
271 u32 out[HCI_WORDS];
272 acpi_status status = hci_raw(in, out);
273 *out1 = out[2];
274 *out2 = out[3];
275 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
276 return status;
277}
278
279struct toshiba_acpi_dev {
280 struct platform_device *p_dev;
281 struct rfkill *bt_rfk;
282 struct input_dev *hotkey_dev;
283 int illumination_installed;
284 acpi_handle handle;
285
286 const char *bt_name;
287
288 struct mutex mutex;
289};
290
291/* Illumination support */
292static int toshiba_illumination_available(void)
293{
294 u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
295 u32 out[HCI_WORDS];
296 acpi_status status;
297
298 in[0] = 0xf100;
299 status = hci_raw(in, out);
300 if (ACPI_FAILURE(status)) {
301 pr_info("Illumination device not available\n");
302 return 0;
303 }
304 in[0] = 0xf400;
305 status = hci_raw(in, out);
306 return 1;
307}
308
309static void toshiba_illumination_set(struct led_classdev *cdev,
310 enum led_brightness brightness)
311{
312 u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
313 u32 out[HCI_WORDS];
314 acpi_status status;
315
316 /* First request : initialize communication. */
317 in[0] = 0xf100;
318 status = hci_raw(in, out);
319 if (ACPI_FAILURE(status)) {
320 pr_info("Illumination device not available\n");
321 return;
322 }
323
324 if (brightness) {
325 /* Switch the illumination on */
326 in[0] = 0xf400;
327 in[1] = 0x14e;
328 in[2] = 1;
329 status = hci_raw(in, out);
330 if (ACPI_FAILURE(status)) {
331 pr_info("ACPI call for illumination failed\n");
332 return;
333 }
334 } else {
335 /* Switch the illumination off */
336 in[0] = 0xf400;
337 in[1] = 0x14e;
338 in[2] = 0;
339 status = hci_raw(in, out);
340 if (ACPI_FAILURE(status)) {
341 pr_info("ACPI call for illumination failed.\n");
342 return;
343 }
344 }
345
346 /* Last request : close communication. */
347 in[0] = 0xf200;
348 in[1] = 0;
349 in[2] = 0;
350 hci_raw(in, out);
351}
352
353static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
354{
355 u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
356 u32 out[HCI_WORDS];
357 acpi_status status;
358 enum led_brightness result;
359
360 /*Â First request : initialize communication. */
361 in[0] = 0xf100;
362 status = hci_raw(in, out);
363 if (ACPI_FAILURE(status)) {
364 pr_info("Illumination device not available\n");
365 return LED_OFF;
366 }
367
368 /* Check the illumination */
369 in[0] = 0xf300;
370 in[1] = 0x14e;
371 status = hci_raw(in, out);
372 if (ACPI_FAILURE(status)) {
373 pr_info("ACPI call for illumination failed.\n");
374 return LED_OFF;
375 }
376
377 result = out[2] ? LED_FULL : LED_OFF;
378
379 /* Last request : close communication. */
380 in[0] = 0xf200;
381 in[1] = 0;
382 in[2] = 0;
383 hci_raw(in, out);
384
385 return result;
386}
387
388static struct led_classdev toshiba_led = {
389 .name = "toshiba::illumination",
390 .max_brightness = 1,
391 .brightness_set = toshiba_illumination_set,
392 .brightness_get = toshiba_illumination_get,
393};
394
395static struct toshiba_acpi_dev toshiba_acpi = {
396 .bt_name = "Toshiba Bluetooth",
397};
398
399/* Bluetooth rfkill handlers */
400
401static u32 hci_get_bt_present(bool *present)
402{
403 u32 hci_result;
404 u32 value, value2;
405
406 value = 0;
407 value2 = 0;
408 hci_read2(HCI_WIRELESS, &value, &value2, &hci_result);
409 if (hci_result == HCI_SUCCESS)
410 *present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false;
411
412 return hci_result;
413}
414
415static u32 hci_get_radio_state(bool *radio_state)
416{
417 u32 hci_result;
418 u32 value, value2;
419
420 value = 0;
421 value2 = 0x0001;
422 hci_read2(HCI_WIRELESS, &value, &value2, &hci_result);
423
424 *radio_state = value & HCI_WIRELESS_KILL_SWITCH;
425 return hci_result;
426}
427
428static int bt_rfkill_set_block(void *data, bool blocked)
429{
430 struct toshiba_acpi_dev *dev = data;
431 u32 result1, result2;
432 u32 value;
433 int err;
434 bool radio_state;
435
436 value = (blocked == false);
437
438 mutex_lock(&dev->mutex);
439 if (hci_get_radio_state(&radio_state) != HCI_SUCCESS) {
440 err = -EBUSY;
441 goto out;
442 }
443
444 if (!radio_state) {
445 err = 0;
446 goto out;
447 }
448
449 hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1);
450 hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2);
451
452 if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS)
453 err = -EBUSY;
454 else
455 err = 0;
456 out:
457 mutex_unlock(&dev->mutex);
458 return err;
459}
460
461static void bt_rfkill_poll(struct rfkill *rfkill, void *data)
462{
463 bool new_rfk_state;
464 bool value;
465 u32 hci_result;
466 struct toshiba_acpi_dev *dev = data;
467
468 mutex_lock(&dev->mutex);
469
470 hci_result = hci_get_radio_state(&value);
471 if (hci_result != HCI_SUCCESS) {
472 /* Can't do anything useful */
473 mutex_unlock(&dev->mutex);
474 return;
475 }
476
477 new_rfk_state = value;
478
479 mutex_unlock(&dev->mutex);
480
481 if (rfkill_set_hw_state(rfkill, !new_rfk_state))
482 bt_rfkill_set_block(data, true);
483}
484
485static const struct rfkill_ops toshiba_rfk_ops = {
486 .set_block = bt_rfkill_set_block,
487 .poll = bt_rfkill_poll,
488};
489
490static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
491static struct backlight_device *toshiba_backlight_device;
492static int force_fan;
493static int last_key_event;
494static int key_event_valid;
495
496static int get_lcd(struct backlight_device *bd)
497{
498 u32 hci_result;
499 u32 value;
500
501 hci_read1(HCI_LCD_BRIGHTNESS, &value, &hci_result);
502 if (hci_result == HCI_SUCCESS) {
503 return (value >> HCI_LCD_BRIGHTNESS_SHIFT);
504 } else
505 return -EFAULT;
506}
507
508static int lcd_proc_show(struct seq_file *m, void *v)
509{
510 int value = get_lcd(NULL);
511
512 if (value >= 0) {
513 seq_printf(m, "brightness: %d\n", value);
514 seq_printf(m, "brightness_levels: %d\n",
515 HCI_LCD_BRIGHTNESS_LEVELS);
516 } else {
517 pr_err("Error reading LCD brightness\n");
518 }
519
520 return 0;
521}
522
523static int lcd_proc_open(struct inode *inode, struct file *file)
524{
525 return single_open(file, lcd_proc_show, NULL);
526}
527
528static int set_lcd(int value)
529{
530 u32 hci_result;
531
532 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
533 hci_write1(HCI_LCD_BRIGHTNESS, value, &hci_result);
534 if (hci_result != HCI_SUCCESS)
535 return -EFAULT;
536
537 return 0;
538}
539
540static int set_lcd_status(struct backlight_device *bd)
541{
542 return set_lcd(bd->props.brightness);
543}
544
545static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
546 size_t count, loff_t *pos)
547{
548 char cmd[42];
549 size_t len;
550 int value;
551 int ret;
552
553 len = min(count, sizeof(cmd) - 1);
554 if (copy_from_user(cmd, buf, len))
555 return -EFAULT;
556 cmd[len] = '\0';
557
558 if (sscanf(cmd, " brightness : %i", &value) == 1 &&
559 value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) {
560 ret = set_lcd(value);
561 if (ret == 0)
562 ret = count;
563 } else {
564 ret = -EINVAL;
565 }
566 return ret;
567}
568
569static const struct file_operations lcd_proc_fops = {
570 .owner = THIS_MODULE,
571 .open = lcd_proc_open,
572 .read = seq_read,
573 .llseek = seq_lseek,
574 .release = single_release,
575 .write = lcd_proc_write,
576};
577
578static int video_proc_show(struct seq_file *m, void *v)
579{
580 u32 hci_result;
581 u32 value;
582
583 hci_read1(HCI_VIDEO_OUT, &value, &hci_result);
584 if (hci_result == HCI_SUCCESS) {
585 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
586 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
587 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
588 seq_printf(m, "lcd_out: %d\n", is_lcd);
589 seq_printf(m, "crt_out: %d\n", is_crt);
590 seq_printf(m, "tv_out: %d\n", is_tv);
591 } else {
592 pr_err("Error reading video out status\n");
593 }
594
595 return 0;
596}
597
598static int video_proc_open(struct inode *inode, struct file *file)
599{
600 return single_open(file, video_proc_show, NULL);
601}
602
603static ssize_t video_proc_write(struct file *file, const char __user *buf,
604 size_t count, loff_t *pos)
605{
606 char *cmd, *buffer;
607 int value;
608 int remain = count;
609 int lcd_out = -1;
610 int crt_out = -1;
611 int tv_out = -1;
612 u32 hci_result;
613 u32 video_out;
614
615 cmd = kmalloc(count + 1, GFP_KERNEL);
616 if (!cmd)
617 return -ENOMEM;
618 if (copy_from_user(cmd, buf, count)) {
619 kfree(cmd);
620 return -EFAULT;
621 }
622 cmd[count] = '\0';
623
624 buffer = cmd;
625
626 /* scan expression. Multiple expressions may be delimited with ;
627 *
628 * NOTE: to keep scanning simple, invalid fields are ignored
629 */
630 while (remain) {
631 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
632 lcd_out = value & 1;
633 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
634 crt_out = value & 1;
635 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
636 tv_out = value & 1;
637 /* advance to one character past the next ; */
638 do {
639 ++buffer;
640 --remain;
641 }
642 while (remain && *(buffer - 1) != ';');
643 }
644
645 kfree(cmd);
646
647 hci_read1(HCI_VIDEO_OUT, &video_out, &hci_result);
648 if (hci_result == HCI_SUCCESS) {
649 unsigned int new_video_out = video_out;
650 if (lcd_out != -1)
651 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
652 if (crt_out != -1)
653 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
654 if (tv_out != -1)
655 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
656 /* To avoid unnecessary video disruption, only write the new
657 * video setting if something changed. */
658 if (new_video_out != video_out)
659 write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
660 } else {
661 return -EFAULT;
662 }
663
664 return count;
665}
666
667static const struct file_operations video_proc_fops = {
668 .owner = THIS_MODULE,
669 .open = video_proc_open,
670 .read = seq_read,
671 .llseek = seq_lseek,
672 .release = single_release,
673 .write = video_proc_write,
674};
675
676static int fan_proc_show(struct seq_file *m, void *v)
677{
678 u32 hci_result;
679 u32 value;
680
681 hci_read1(HCI_FAN, &value, &hci_result);
682 if (hci_result == HCI_SUCCESS) {
683 seq_printf(m, "running: %d\n", (value > 0));
684 seq_printf(m, "force_on: %d\n", force_fan);
685 } else {
686 pr_err("Error reading fan status\n");
687 }
688
689 return 0;
690}
691
692static int fan_proc_open(struct inode *inode, struct file *file)
693{
694 return single_open(file, fan_proc_show, NULL);
695}
696
697static ssize_t fan_proc_write(struct file *file, const char __user *buf,
698 size_t count, loff_t *pos)
699{
700 char cmd[42];
701 size_t len;
702 int value;
703 u32 hci_result;
704
705 len = min(count, sizeof(cmd) - 1);
706 if (copy_from_user(cmd, buf, len))
707 return -EFAULT;
708 cmd[len] = '\0';
709
710 if (sscanf(cmd, " force_on : %i", &value) == 1 &&
711 value >= 0 && value <= 1) {
712 hci_write1(HCI_FAN, value, &hci_result);
713 if (hci_result != HCI_SUCCESS)
714 return -EFAULT;
715 else
716 force_fan = value;
717 } else {
718 return -EINVAL;
719 }
720
721 return count;
722}
723
724static const struct file_operations fan_proc_fops = {
725 .owner = THIS_MODULE,
726 .open = fan_proc_open,
727 .read = seq_read,
728 .llseek = seq_lseek,
729 .release = single_release,
730 .write = fan_proc_write,
731};
732
733static int keys_proc_show(struct seq_file *m, void *v)
734{
735 u32 hci_result;
736 u32 value;
737
738 if (!key_event_valid) {
739 hci_read1(HCI_SYSTEM_EVENT, &value, &hci_result);
740 if (hci_result == HCI_SUCCESS) {
741 key_event_valid = 1;
742 last_key_event = value;
743 } else if (hci_result == HCI_EMPTY) {
744 /* better luck next time */
745 } else if (hci_result == HCI_NOT_SUPPORTED) {
746 /* This is a workaround for an unresolved issue on
747 * some machines where system events sporadically
748 * become disabled. */
749 hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result);
750 pr_notice("Re-enabled hotkeys\n");
751 } else {
752 pr_err("Error reading hotkey status\n");
753 goto end;
754 }
755 }
756
757 seq_printf(m, "hotkey_ready: %d\n", key_event_valid);
758 seq_printf(m, "hotkey: 0x%04x\n", last_key_event);
759end:
760 return 0;
761}
762
763static int keys_proc_open(struct inode *inode, struct file *file)
764{
765 return single_open(file, keys_proc_show, NULL);
766}
767
768static ssize_t keys_proc_write(struct file *file, const char __user *buf,
769 size_t count, loff_t *pos)
770{
771 char cmd[42];
772 size_t len;
773 int value;
774
775 len = min(count, sizeof(cmd) - 1);
776 if (copy_from_user(cmd, buf, len))
777 return -EFAULT;
778 cmd[len] = '\0';
779
780 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) {
781 key_event_valid = 0;
782 } else {
783 return -EINVAL;
784 }
785
786 return count;
787}
788
789static const struct file_operations keys_proc_fops = {
790 .owner = THIS_MODULE,
791 .open = keys_proc_open,
792 .read = seq_read,
793 .llseek = seq_lseek,
794 .release = single_release,
795 .write = keys_proc_write,
796};
797
798static int version_proc_show(struct seq_file *m, void *v)
799{
800 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
801 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
802 return 0;
803}
804
805static int version_proc_open(struct inode *inode, struct file *file)
806{
807 return single_open(file, version_proc_show, PDE(inode)->data);
808}
809
810static const struct file_operations version_proc_fops = {
811 .owner = THIS_MODULE,
812 .open = version_proc_open,
813 .read = seq_read,
814 .llseek = seq_lseek,
815 .release = single_release,
816};
817
818/* proc and module init
819 */
820
821#define PROC_TOSHIBA "toshiba"
822
823static void __init create_toshiba_proc_entries(void)
824{
825 proc_create("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir, &lcd_proc_fops);
826 proc_create("video", S_IRUGO | S_IWUSR, toshiba_proc_dir, &video_proc_fops);
827 proc_create("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir, &fan_proc_fops);
828 proc_create("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, &keys_proc_fops);
829 proc_create("version", S_IRUGO, toshiba_proc_dir, &version_proc_fops);
830}
831
832static void remove_toshiba_proc_entries(void)
833{
834 remove_proc_entry("lcd", toshiba_proc_dir);
835 remove_proc_entry("video", toshiba_proc_dir);
836 remove_proc_entry("fan", toshiba_proc_dir);
837 remove_proc_entry("keys", toshiba_proc_dir);
838 remove_proc_entry("version", toshiba_proc_dir);
839}
840
841static const struct backlight_ops toshiba_backlight_data = {
842 .get_brightness = get_lcd,
843 .update_status = set_lcd_status,
844};
845
846static void toshiba_acpi_notify(acpi_handle handle, u32 event, void *context)
847{
848 u32 hci_result, value;
849
850 if (event != 0x80)
851 return;
852 do {
853 hci_read1(HCI_SYSTEM_EVENT, &value, &hci_result);
854 if (hci_result == HCI_SUCCESS) {
855 if (value == 0x100)
856 continue;
857 /* act on key press; ignore key release */
858 if (value & 0x80)
859 continue;
860
861 if (!sparse_keymap_report_event(toshiba_acpi.hotkey_dev,
862 value, 1, true)) {
863 pr_info("Unknown key %x\n",
864 value);
865 }
866 } else if (hci_result == HCI_NOT_SUPPORTED) {
867 /* This is a workaround for an unresolved issue on
868 * some machines where system events sporadically
869 * become disabled. */
870 hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result);
871 pr_notice("Re-enabled hotkeys\n");
872 }
873 } while (hci_result != HCI_EMPTY);
874}
875
876static int __init toshiba_acpi_setup_keyboard(char *device)
877{
878 acpi_status status;
879 int error;
880
881 status = acpi_get_handle(NULL, device, &toshiba_acpi.handle);
882 if (ACPI_FAILURE(status)) {
883 pr_info("Unable to get notification device\n");
884 return -ENODEV;
885 }
886
887 toshiba_acpi.hotkey_dev = input_allocate_device();
888 if (!toshiba_acpi.hotkey_dev) {
889 pr_info("Unable to register input device\n");
890 return -ENOMEM;
891 }
892
893 toshiba_acpi.hotkey_dev->name = "Toshiba input device";
894 toshiba_acpi.hotkey_dev->phys = device;
895 toshiba_acpi.hotkey_dev->id.bustype = BUS_HOST;
896
897 error = sparse_keymap_setup(toshiba_acpi.hotkey_dev,
898 toshiba_acpi_keymap, NULL);
899 if (error)
900 goto err_free_dev;
901
902 status = acpi_install_notify_handler(toshiba_acpi.handle,
903 ACPI_DEVICE_NOTIFY, toshiba_acpi_notify, NULL);
904 if (ACPI_FAILURE(status)) {
905 pr_info("Unable to install hotkey notification\n");
906 error = -ENODEV;
907 goto err_free_keymap;
908 }
909
910 status = acpi_evaluate_object(toshiba_acpi.handle, "ENAB", NULL, NULL);
911 if (ACPI_FAILURE(status)) {
912 pr_info("Unable to enable hotkeys\n");
913 error = -ENODEV;
914 goto err_remove_notify;
915 }
916
917 error = input_register_device(toshiba_acpi.hotkey_dev);
918 if (error) {
919 pr_info("Unable to register input device\n");
920 goto err_remove_notify;
921 }
922
923 return 0;
924
925 err_remove_notify:
926 acpi_remove_notify_handler(toshiba_acpi.handle,
927 ACPI_DEVICE_NOTIFY, toshiba_acpi_notify);
928 err_free_keymap:
929 sparse_keymap_free(toshiba_acpi.hotkey_dev);
930 err_free_dev:
931 input_free_device(toshiba_acpi.hotkey_dev);
932 toshiba_acpi.hotkey_dev = NULL;
933 return error;
934}
935
936static void toshiba_acpi_exit(void)
937{
938 if (toshiba_acpi.hotkey_dev) {
939 acpi_remove_notify_handler(toshiba_acpi.handle,
940 ACPI_DEVICE_NOTIFY, toshiba_acpi_notify);
941 sparse_keymap_free(toshiba_acpi.hotkey_dev);
942 input_unregister_device(toshiba_acpi.hotkey_dev);
943 }
944
945 if (toshiba_acpi.bt_rfk) {
946 rfkill_unregister(toshiba_acpi.bt_rfk);
947 rfkill_destroy(toshiba_acpi.bt_rfk);
948 }
949
950 if (toshiba_backlight_device)
951 backlight_device_unregister(toshiba_backlight_device);
952
953 remove_toshiba_proc_entries();
954
955 if (toshiba_proc_dir)
956 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
957
958 if (toshiba_acpi.illumination_installed)
959 led_classdev_unregister(&toshiba_led);
960
961 platform_device_unregister(toshiba_acpi.p_dev);
962
963 return;
964}
965
966static int __init toshiba_acpi_init(void)
967{
968 u32 hci_result;
969 bool bt_present;
970 int ret = 0;
971 struct backlight_properties props;
972
973 if (acpi_disabled)
974 return -ENODEV;
975
976 /* simple device detection: look for HCI method */
977 if (is_valid_acpi_path(TOSH_INTERFACE_1 GHCI_METHOD)) {
978 method_hci = TOSH_INTERFACE_1 GHCI_METHOD;
979 if (toshiba_acpi_setup_keyboard(TOSH_INTERFACE_1))
980 pr_info("Unable to activate hotkeys\n");
981 } else if (is_valid_acpi_path(TOSH_INTERFACE_2 GHCI_METHOD)) {
982 method_hci = TOSH_INTERFACE_2 GHCI_METHOD;
983 if (toshiba_acpi_setup_keyboard(TOSH_INTERFACE_2))
984 pr_info("Unable to activate hotkeys\n");
985 } else
986 return -ENODEV;
987
988 pr_info("Toshiba Laptop ACPI Extras version %s\n",
989 TOSHIBA_ACPI_VERSION);
990 pr_info(" HCI method: %s\n", method_hci);
991
992 mutex_init(&toshiba_acpi.mutex);
993
994 toshiba_acpi.p_dev = platform_device_register_simple("toshiba_acpi",
995 -1, NULL, 0);
996 if (IS_ERR(toshiba_acpi.p_dev)) {
997 ret = PTR_ERR(toshiba_acpi.p_dev);
998 pr_err("unable to register platform device\n");
999 toshiba_acpi.p_dev = NULL;
1000 toshiba_acpi_exit();
1001 return ret;
1002 }
1003
1004 force_fan = 0;
1005 key_event_valid = 0;
1006
1007 /* enable event fifo */
1008 hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result);
1009
1010 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
1011 if (!toshiba_proc_dir) {
1012 toshiba_acpi_exit();
1013 return -ENODEV;
1014 } else {
1015 create_toshiba_proc_entries();
1016 }
1017
1018 props.type = BACKLIGHT_PLATFORM;
1019 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
1020 toshiba_backlight_device = backlight_device_register("toshiba",
1021 &toshiba_acpi.p_dev->dev,
1022 NULL,
1023 &toshiba_backlight_data,
1024 &props);
1025 if (IS_ERR(toshiba_backlight_device)) {
1026 ret = PTR_ERR(toshiba_backlight_device);
1027
1028 pr_err("Could not register toshiba backlight device\n");
1029 toshiba_backlight_device = NULL;
1030 toshiba_acpi_exit();
1031 return ret;
1032 }
1033
1034 /* Register rfkill switch for Bluetooth */
1035 if (hci_get_bt_present(&bt_present) == HCI_SUCCESS && bt_present) {
1036 toshiba_acpi.bt_rfk = rfkill_alloc(toshiba_acpi.bt_name,
1037 &toshiba_acpi.p_dev->dev,
1038 RFKILL_TYPE_BLUETOOTH,
1039 &toshiba_rfk_ops,
1040 &toshiba_acpi);
1041 if (!toshiba_acpi.bt_rfk) {
1042 pr_err("unable to allocate rfkill device\n");
1043 toshiba_acpi_exit();
1044 return -ENOMEM;
1045 }
1046
1047 ret = rfkill_register(toshiba_acpi.bt_rfk);
1048 if (ret) {
1049 pr_err("unable to register rfkill device\n");
1050 rfkill_destroy(toshiba_acpi.bt_rfk);
1051 toshiba_acpi_exit();
1052 return ret;
1053 }
1054 }
1055
1056 toshiba_acpi.illumination_installed = 0;
1057 if (toshiba_illumination_available()) {
1058 if (!led_classdev_register(&(toshiba_acpi.p_dev->dev),
1059 &toshiba_led))
1060 toshiba_acpi.illumination_installed = 1;
1061 }
1062
1063 return 0;
1064}
1065
1066module_init(toshiba_acpi_init);
1067module_exit(toshiba_acpi_exit);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
4 *
5 * Copyright (C) 2002-2004 John Belmonte
6 * Copyright (C) 2008 Philip Langdale
7 * Copyright (C) 2010 Pierre Ducroquet
8 * Copyright (C) 2014-2016 Azael Avalos
9 *
10 * The devolpment page for this driver is located at
11 * http://memebeam.org/toys/ToshibaAcpiDriver.
12 *
13 * Credits:
14 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
15 * engineering the Windows drivers
16 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
17 * Rob Miller - TV out and hotkeys help
18 */
19
20#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21
22#define TOSHIBA_ACPI_VERSION "0.24"
23#define PROC_INTERFACE_VERSION 1
24
25#include <linux/compiler.h>
26#include <linux/kernel.h>
27#include <linux/module.h>
28#include <linux/moduleparam.h>
29#include <linux/init.h>
30#include <linux/types.h>
31#include <linux/proc_fs.h>
32#include <linux/seq_file.h>
33#include <linux/backlight.h>
34#include <linux/input.h>
35#include <linux/input/sparse-keymap.h>
36#include <linux/leds.h>
37#include <linux/slab.h>
38#include <linux/workqueue.h>
39#include <linux/i8042.h>
40#include <linux/acpi.h>
41#include <linux/dmi.h>
42#include <linux/uaccess.h>
43#include <linux/miscdevice.h>
44#include <linux/rfkill.h>
45#include <linux/iio/iio.h>
46#include <linux/toshiba.h>
47#include <acpi/video.h>
48
49MODULE_AUTHOR("John Belmonte");
50MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
51MODULE_LICENSE("GPL");
52
53#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
54
55/* Scan code for Fn key on TOS1900 models */
56#define TOS1900_FN_SCAN 0x6e
57
58/* Toshiba ACPI method paths */
59#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
60
61/*
62 * The Toshiba configuration interface is composed of the HCI and the SCI,
63 * which are defined as follows:
64 *
65 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
66 * be uniform across all their models. Ideally we would just call
67 * dedicated ACPI methods instead of using this primitive interface.
68 * However the ACPI methods seem to be incomplete in some areas (for
69 * example they allow setting, but not reading, the LCD brightness value),
70 * so this is still useful.
71 *
72 * SCI stands for "System Configuration Interface" which aim is to
73 * conceal differences in hardware between different models.
74 */
75
76#define TCI_WORDS 6
77
78/* Operations */
79#define HCI_SET 0xff00
80#define HCI_GET 0xfe00
81#define SCI_OPEN 0xf100
82#define SCI_CLOSE 0xf200
83#define SCI_GET 0xf300
84#define SCI_SET 0xf400
85
86/* Return codes */
87#define TOS_SUCCESS 0x0000
88#define TOS_SUCCESS2 0x0001
89#define TOS_OPEN_CLOSE_OK 0x0044
90#define TOS_FAILURE 0x1000
91#define TOS_NOT_SUPPORTED 0x8000
92#define TOS_ALREADY_OPEN 0x8100
93#define TOS_NOT_OPENED 0x8200
94#define TOS_INPUT_DATA_ERROR 0x8300
95#define TOS_WRITE_PROTECTED 0x8400
96#define TOS_NOT_PRESENT 0x8600
97#define TOS_FIFO_EMPTY 0x8c00
98#define TOS_DATA_NOT_AVAILABLE 0x8d20
99#define TOS_NOT_INITIALIZED 0x8d50
100#define TOS_NOT_INSTALLED 0x8e00
101
102/* Registers */
103#define HCI_FAN 0x0004
104#define HCI_TR_BACKLIGHT 0x0005
105#define HCI_SYSTEM_EVENT 0x0016
106#define HCI_VIDEO_OUT 0x001c
107#define HCI_HOTKEY_EVENT 0x001e
108#define HCI_LCD_BRIGHTNESS 0x002a
109#define HCI_WIRELESS 0x0056
110#define HCI_ACCELEROMETER 0x006d
111#define HCI_COOLING_METHOD 0x007f
112#define HCI_KBD_ILLUMINATION 0x0095
113#define HCI_ECO_MODE 0x0097
114#define HCI_ACCELEROMETER2 0x00a6
115#define HCI_SYSTEM_INFO 0xc000
116#define SCI_PANEL_POWER_ON 0x010d
117#define SCI_ILLUMINATION 0x014e
118#define SCI_USB_SLEEP_CHARGE 0x0150
119#define SCI_KBD_ILLUM_STATUS 0x015c
120#define SCI_USB_SLEEP_MUSIC 0x015e
121#define SCI_USB_THREE 0x0169
122#define SCI_TOUCHPAD 0x050e
123#define SCI_KBD_FUNCTION_KEYS 0x0522
124
125/* Field definitions */
126#define HCI_ACCEL_MASK 0x7fff
127#define HCI_ACCEL_DIRECTION_MASK 0x8000
128#define HCI_HOTKEY_DISABLE 0x0b
129#define HCI_HOTKEY_ENABLE 0x09
130#define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
131#define HCI_LCD_BRIGHTNESS_BITS 3
132#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
133#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
134#define HCI_MISC_SHIFT 0x10
135#define HCI_SYSTEM_TYPE1 0x10
136#define HCI_SYSTEM_TYPE2 0x11
137#define HCI_VIDEO_OUT_LCD 0x1
138#define HCI_VIDEO_OUT_CRT 0x2
139#define HCI_VIDEO_OUT_TV 0x4
140#define SCI_KBD_MODE_MASK 0x1f
141#define SCI_KBD_MODE_FNZ 0x1
142#define SCI_KBD_MODE_AUTO 0x2
143#define SCI_KBD_MODE_ON 0x8
144#define SCI_KBD_MODE_OFF 0x10
145#define SCI_KBD_TIME_MAX 0x3c001a
146#define HCI_WIRELESS_STATUS 0x1
147#define HCI_WIRELESS_WWAN 0x3
148#define HCI_WIRELESS_WWAN_STATUS 0x2000
149#define HCI_WIRELESS_WWAN_POWER 0x4000
150#define SCI_USB_CHARGE_MODE_MASK 0xff
151#define SCI_USB_CHARGE_DISABLED 0x00
152#define SCI_USB_CHARGE_ALTERNATE 0x09
153#define SCI_USB_CHARGE_TYPICAL 0x11
154#define SCI_USB_CHARGE_AUTO 0x21
155#define SCI_USB_CHARGE_BAT_MASK 0x7
156#define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
157#define SCI_USB_CHARGE_BAT_LVL_ON 0x4
158#define SCI_USB_CHARGE_BAT_LVL 0x0200
159#define SCI_USB_CHARGE_RAPID_DSP 0x0300
160
161struct toshiba_acpi_dev {
162 struct acpi_device *acpi_dev;
163 const char *method_hci;
164 struct input_dev *hotkey_dev;
165 struct work_struct hotkey_work;
166 struct backlight_device *backlight_dev;
167 struct led_classdev led_dev;
168 struct led_classdev kbd_led;
169 struct led_classdev eco_led;
170 struct miscdevice miscdev;
171 struct rfkill *wwan_rfk;
172 struct iio_dev *indio_dev;
173
174 int force_fan;
175 int last_key_event;
176 int key_event_valid;
177 int kbd_type;
178 int kbd_mode;
179 int kbd_time;
180 int usbsc_bat_level;
181 int usbsc_mode_base;
182 int hotkey_event_type;
183 int max_cooling_method;
184
185 unsigned int illumination_supported:1;
186 unsigned int video_supported:1;
187 unsigned int fan_supported:1;
188 unsigned int system_event_supported:1;
189 unsigned int ntfy_supported:1;
190 unsigned int info_supported:1;
191 unsigned int tr_backlight_supported:1;
192 unsigned int kbd_illum_supported:1;
193 unsigned int touchpad_supported:1;
194 unsigned int eco_supported:1;
195 unsigned int accelerometer_supported:1;
196 unsigned int usb_sleep_charge_supported:1;
197 unsigned int usb_rapid_charge_supported:1;
198 unsigned int usb_sleep_music_supported:1;
199 unsigned int kbd_function_keys_supported:1;
200 unsigned int panel_power_on_supported:1;
201 unsigned int usb_three_supported:1;
202 unsigned int wwan_supported:1;
203 unsigned int cooling_method_supported:1;
204 unsigned int sysfs_created:1;
205 unsigned int special_functions;
206
207 bool kbd_event_generated;
208 bool killswitch;
209};
210
211static struct toshiba_acpi_dev *toshiba_acpi;
212
213static bool disable_hotkeys;
214module_param(disable_hotkeys, bool, 0444);
215MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
216
217static const struct acpi_device_id toshiba_device_ids[] = {
218 {"TOS6200", 0},
219 {"TOS6207", 0},
220 {"TOS6208", 0},
221 {"TOS1900", 0},
222 {"", 0},
223};
224MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
225
226static const struct key_entry toshiba_acpi_keymap[] = {
227 { KE_KEY, 0x9e, { KEY_RFKILL } },
228 { KE_KEY, 0x101, { KEY_MUTE } },
229 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
230 { KE_KEY, 0x103, { KEY_ZOOMIN } },
231 { KE_KEY, 0x10f, { KEY_TAB } },
232 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
233 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
234 { KE_KEY, 0x13b, { KEY_COFFEE } },
235 { KE_KEY, 0x13c, { KEY_BATTERY } },
236 { KE_KEY, 0x13d, { KEY_SLEEP } },
237 { KE_KEY, 0x13e, { KEY_SUSPEND } },
238 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
239 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
240 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
241 { KE_KEY, 0x142, { KEY_WLAN } },
242 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
243 { KE_KEY, 0x17f, { KEY_FN } },
244 { KE_KEY, 0xb05, { KEY_PROG2 } },
245 { KE_KEY, 0xb06, { KEY_WWW } },
246 { KE_KEY, 0xb07, { KEY_MAIL } },
247 { KE_KEY, 0xb30, { KEY_STOP } },
248 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
249 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
250 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
251 { KE_KEY, 0xb5a, { KEY_MEDIA } },
252 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
253 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
254 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
255 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
256 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
257 { KE_END, 0 },
258};
259
260static const struct key_entry toshiba_acpi_alt_keymap[] = {
261 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
262 { KE_KEY, 0x103, { KEY_ZOOMIN } },
263 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
264 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
265 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
266 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
267 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
268 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
269 { KE_KEY, 0x157, { KEY_MUTE } },
270 { KE_KEY, 0x158, { KEY_WLAN } },
271 { KE_END, 0 },
272};
273
274/*
275 * List of models which have a broken acpi-video backlight interface and thus
276 * need to use the toshiba (vendor) interface instead.
277 */
278static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
279 {}
280};
281
282/*
283 * Utility
284 */
285
286static inline void _set_bit(u32 *word, u32 mask, int value)
287{
288 *word = (*word & ~mask) | (mask * value);
289}
290
291/*
292 * ACPI interface wrappers
293 */
294
295static int write_acpi_int(const char *methodName, int val)
296{
297 acpi_status status;
298
299 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
300 return (status == AE_OK) ? 0 : -EIO;
301}
302
303/*
304 * Perform a raw configuration call. Here we don't care about input or output
305 * buffer format.
306 */
307static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
308 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
309{
310 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
311 struct acpi_object_list params;
312 struct acpi_buffer results;
313 acpi_status status;
314 int i;
315
316 params.count = TCI_WORDS;
317 params.pointer = in_objs;
318 for (i = 0; i < TCI_WORDS; ++i) {
319 in_objs[i].type = ACPI_TYPE_INTEGER;
320 in_objs[i].integer.value = in[i];
321 }
322
323 results.length = sizeof(out_objs);
324 results.pointer = out_objs;
325
326 status = acpi_evaluate_object(dev->acpi_dev->handle,
327 (char *)dev->method_hci, ¶ms,
328 &results);
329 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
330 for (i = 0; i < out_objs->package.count; ++i)
331 out[i] = out_objs->package.elements[i].integer.value;
332 }
333
334 return status;
335}
336
337/*
338 * Common hci tasks
339 *
340 * In addition to the ACPI status, the HCI system returns a result which
341 * may be useful (such as "not supported").
342 */
343
344static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
345{
346 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
347 u32 out[TCI_WORDS];
348 acpi_status status = tci_raw(dev, in, out);
349
350 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
351}
352
353static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
354{
355 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
356 u32 out[TCI_WORDS];
357 acpi_status status = tci_raw(dev, in, out);
358
359 if (ACPI_FAILURE(status))
360 return TOS_FAILURE;
361
362 *out1 = out[2];
363
364 return out[0];
365}
366
367/*
368 * Common sci tasks
369 */
370
371static int sci_open(struct toshiba_acpi_dev *dev)
372{
373 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
374 u32 out[TCI_WORDS];
375 acpi_status status = tci_raw(dev, in, out);
376
377 if (ACPI_FAILURE(status)) {
378 pr_err("ACPI call to open SCI failed\n");
379 return 0;
380 }
381
382 if (out[0] == TOS_OPEN_CLOSE_OK) {
383 return 1;
384 } else if (out[0] == TOS_ALREADY_OPEN) {
385 pr_info("Toshiba SCI already opened\n");
386 return 1;
387 } else if (out[0] == TOS_NOT_SUPPORTED) {
388 /*
389 * Some BIOSes do not have the SCI open/close functions
390 * implemented and return 0x8000 (Not Supported), failing to
391 * register some supported features.
392 *
393 * Simply return 1 if we hit those affected laptops to make the
394 * supported features work.
395 *
396 * In the case that some laptops really do not support the SCI,
397 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
398 * and thus, not registering support for the queried feature.
399 */
400 return 1;
401 } else if (out[0] == TOS_NOT_PRESENT) {
402 pr_info("Toshiba SCI is not present\n");
403 }
404
405 return 0;
406}
407
408static void sci_close(struct toshiba_acpi_dev *dev)
409{
410 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
411 u32 out[TCI_WORDS];
412 acpi_status status = tci_raw(dev, in, out);
413
414 if (ACPI_FAILURE(status)) {
415 pr_err("ACPI call to close SCI failed\n");
416 return;
417 }
418
419 if (out[0] == TOS_OPEN_CLOSE_OK)
420 return;
421 else if (out[0] == TOS_NOT_OPENED)
422 pr_info("Toshiba SCI not opened\n");
423 else if (out[0] == TOS_NOT_PRESENT)
424 pr_info("Toshiba SCI is not present\n");
425}
426
427static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
428{
429 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
430 u32 out[TCI_WORDS];
431 acpi_status status = tci_raw(dev, in, out);
432
433 if (ACPI_FAILURE(status))
434 return TOS_FAILURE;
435
436 *out1 = out[2];
437
438 return out[0];
439}
440
441static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
442{
443 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
444 u32 out[TCI_WORDS];
445 acpi_status status = tci_raw(dev, in, out);
446
447 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
448}
449
450/* Illumination support */
451static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
452{
453 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
454 u32 out[TCI_WORDS];
455 acpi_status status;
456
457 dev->illumination_supported = 0;
458
459 if (!sci_open(dev))
460 return;
461
462 status = tci_raw(dev, in, out);
463 sci_close(dev);
464 if (ACPI_FAILURE(status)) {
465 pr_err("ACPI call to query Illumination support failed\n");
466 return;
467 }
468
469 if (out[0] != TOS_SUCCESS)
470 return;
471
472 dev->illumination_supported = 1;
473}
474
475static void toshiba_illumination_set(struct led_classdev *cdev,
476 enum led_brightness brightness)
477{
478 struct toshiba_acpi_dev *dev = container_of(cdev,
479 struct toshiba_acpi_dev, led_dev);
480 u32 result;
481 u32 state;
482
483 /* First request : initialize communication. */
484 if (!sci_open(dev))
485 return;
486
487 /* Switch the illumination on/off */
488 state = brightness ? 1 : 0;
489 result = sci_write(dev, SCI_ILLUMINATION, state);
490 sci_close(dev);
491 if (result == TOS_FAILURE)
492 pr_err("ACPI call for illumination failed\n");
493}
494
495static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
496{
497 struct toshiba_acpi_dev *dev = container_of(cdev,
498 struct toshiba_acpi_dev, led_dev);
499 u32 result;
500 u32 state;
501
502 /* First request : initialize communication. */
503 if (!sci_open(dev))
504 return LED_OFF;
505
506 /* Check the illumination */
507 result = sci_read(dev, SCI_ILLUMINATION, &state);
508 sci_close(dev);
509 if (result == TOS_FAILURE) {
510 pr_err("ACPI call for illumination failed\n");
511 return LED_OFF;
512 } else if (result != TOS_SUCCESS) {
513 return LED_OFF;
514 }
515
516 return state ? LED_FULL : LED_OFF;
517}
518
519/* KBD Illumination */
520static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
521{
522 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
523 u32 out[TCI_WORDS];
524 acpi_status status;
525
526 dev->kbd_illum_supported = 0;
527 dev->kbd_event_generated = false;
528
529 if (!sci_open(dev))
530 return;
531
532 status = tci_raw(dev, in, out);
533 sci_close(dev);
534 if (ACPI_FAILURE(status)) {
535 pr_err("ACPI call to query kbd illumination support failed\n");
536 return;
537 }
538
539 if (out[0] != TOS_SUCCESS)
540 return;
541
542 /*
543 * Check for keyboard backlight timeout max value,
544 * previous kbd backlight implementation set this to
545 * 0x3c0003, and now the new implementation set this
546 * to 0x3c001a, use this to distinguish between them.
547 */
548 if (out[3] == SCI_KBD_TIME_MAX)
549 dev->kbd_type = 2;
550 else
551 dev->kbd_type = 1;
552 /* Get the current keyboard backlight mode */
553 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
554 /* Get the current time (1-60 seconds) */
555 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
556 /* Flag as supported */
557 dev->kbd_illum_supported = 1;
558}
559
560static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
561{
562 u32 result;
563
564 if (!sci_open(dev))
565 return -EIO;
566
567 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
568 sci_close(dev);
569 if (result == TOS_FAILURE)
570 pr_err("ACPI call to set KBD backlight status failed\n");
571 else if (result == TOS_NOT_SUPPORTED)
572 return -ENODEV;
573
574 return result == TOS_SUCCESS ? 0 : -EIO;
575}
576
577static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
578{
579 u32 result;
580
581 if (!sci_open(dev))
582 return -EIO;
583
584 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
585 sci_close(dev);
586 if (result == TOS_FAILURE)
587 pr_err("ACPI call to get KBD backlight status failed\n");
588 else if (result == TOS_NOT_SUPPORTED)
589 return -ENODEV;
590
591 return result == TOS_SUCCESS ? 0 : -EIO;
592}
593
594static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
595{
596 struct toshiba_acpi_dev *dev = container_of(cdev,
597 struct toshiba_acpi_dev, kbd_led);
598 u32 result;
599 u32 state;
600
601 /* Check the keyboard backlight state */
602 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
603 if (result == TOS_FAILURE) {
604 pr_err("ACPI call to get the keyboard backlight failed\n");
605 return LED_OFF;
606 } else if (result != TOS_SUCCESS) {
607 return LED_OFF;
608 }
609
610 return state ? LED_FULL : LED_OFF;
611}
612
613static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
614 enum led_brightness brightness)
615{
616 struct toshiba_acpi_dev *dev = container_of(cdev,
617 struct toshiba_acpi_dev, kbd_led);
618 u32 result;
619 u32 state;
620
621 /* Set the keyboard backlight state */
622 state = brightness ? 1 : 0;
623 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
624 if (result == TOS_FAILURE)
625 pr_err("ACPI call to set KBD Illumination mode failed\n");
626}
627
628/* TouchPad support */
629static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
630{
631 u32 result;
632
633 if (!sci_open(dev))
634 return -EIO;
635
636 result = sci_write(dev, SCI_TOUCHPAD, state);
637 sci_close(dev);
638 if (result == TOS_FAILURE)
639 pr_err("ACPI call to set the touchpad failed\n");
640 else if (result == TOS_NOT_SUPPORTED)
641 return -ENODEV;
642
643 return result == TOS_SUCCESS ? 0 : -EIO;
644}
645
646static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
647{
648 u32 result;
649
650 if (!sci_open(dev))
651 return -EIO;
652
653 result = sci_read(dev, SCI_TOUCHPAD, state);
654 sci_close(dev);
655 if (result == TOS_FAILURE)
656 pr_err("ACPI call to query the touchpad failed\n");
657 else if (result == TOS_NOT_SUPPORTED)
658 return -ENODEV;
659
660 return result == TOS_SUCCESS ? 0 : -EIO;
661}
662
663/* Eco Mode support */
664static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
665{
666 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
667 u32 out[TCI_WORDS];
668 acpi_status status;
669
670 dev->eco_supported = 0;
671
672 status = tci_raw(dev, in, out);
673 if (ACPI_FAILURE(status)) {
674 pr_err("ACPI call to get ECO led failed\n");
675 return;
676 }
677
678 if (out[0] == TOS_INPUT_DATA_ERROR) {
679 /*
680 * If we receive 0x8300 (Input Data Error), it means that the
681 * LED device is present, but that we just screwed the input
682 * parameters.
683 *
684 * Let's query the status of the LED to see if we really have a
685 * success response, indicating the actual presense of the LED,
686 * bail out otherwise.
687 */
688 in[3] = 1;
689 status = tci_raw(dev, in, out);
690 if (ACPI_FAILURE(status)) {
691 pr_err("ACPI call to get ECO led failed\n");
692 return;
693 }
694
695 if (out[0] != TOS_SUCCESS)
696 return;
697
698 dev->eco_supported = 1;
699 }
700}
701
702static enum led_brightness
703toshiba_eco_mode_get_status(struct led_classdev *cdev)
704{
705 struct toshiba_acpi_dev *dev = container_of(cdev,
706 struct toshiba_acpi_dev, eco_led);
707 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
708 u32 out[TCI_WORDS];
709 acpi_status status;
710
711 status = tci_raw(dev, in, out);
712 if (ACPI_FAILURE(status)) {
713 pr_err("ACPI call to get ECO led failed\n");
714 return LED_OFF;
715 }
716
717 if (out[0] != TOS_SUCCESS)
718 return LED_OFF;
719
720 return out[2] ? LED_FULL : LED_OFF;
721}
722
723static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
724 enum led_brightness brightness)
725{
726 struct toshiba_acpi_dev *dev = container_of(cdev,
727 struct toshiba_acpi_dev, eco_led);
728 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
729 u32 out[TCI_WORDS];
730 acpi_status status;
731
732 /* Switch the Eco Mode led on/off */
733 in[2] = (brightness) ? 1 : 0;
734 status = tci_raw(dev, in, out);
735 if (ACPI_FAILURE(status))
736 pr_err("ACPI call to set ECO led failed\n");
737}
738
739/* Accelerometer support */
740static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
741{
742 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
743 u32 out[TCI_WORDS];
744 acpi_status status;
745
746 dev->accelerometer_supported = 0;
747
748 /*
749 * Check if the accelerometer call exists,
750 * this call also serves as initialization
751 */
752 status = tci_raw(dev, in, out);
753 if (ACPI_FAILURE(status)) {
754 pr_err("ACPI call to query the accelerometer failed\n");
755 return;
756 }
757
758 if (out[0] != TOS_SUCCESS)
759 return;
760
761 dev->accelerometer_supported = 1;
762}
763
764static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
765 u32 *xy, u32 *z)
766{
767 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
768 u32 out[TCI_WORDS];
769 acpi_status status;
770
771 /* Check the Accelerometer status */
772 status = tci_raw(dev, in, out);
773 if (ACPI_FAILURE(status)) {
774 pr_err("ACPI call to query the accelerometer failed\n");
775 return -EIO;
776 }
777
778 if (out[0] == TOS_NOT_SUPPORTED)
779 return -ENODEV;
780
781 if (out[0] != TOS_SUCCESS)
782 return -EIO;
783
784 *xy = out[2];
785 *z = out[4];
786
787 return 0;
788}
789
790/* Sleep (Charge and Music) utilities support */
791static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
792{
793 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
794 u32 out[TCI_WORDS];
795 acpi_status status;
796
797 dev->usb_sleep_charge_supported = 0;
798
799 if (!sci_open(dev))
800 return;
801
802 status = tci_raw(dev, in, out);
803 if (ACPI_FAILURE(status)) {
804 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
805 sci_close(dev);
806 return;
807 }
808
809 if (out[0] != TOS_SUCCESS) {
810 sci_close(dev);
811 return;
812 }
813
814 dev->usbsc_mode_base = out[4];
815
816 in[5] = SCI_USB_CHARGE_BAT_LVL;
817 status = tci_raw(dev, in, out);
818 sci_close(dev);
819 if (ACPI_FAILURE(status)) {
820 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
821 return;
822 }
823
824 if (out[0] != TOS_SUCCESS)
825 return;
826
827 dev->usbsc_bat_level = out[2];
828 /* Flag as supported */
829 dev->usb_sleep_charge_supported = 1;
830}
831
832static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
833 u32 *mode)
834{
835 u32 result;
836
837 if (!sci_open(dev))
838 return -EIO;
839
840 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
841 sci_close(dev);
842 if (result == TOS_FAILURE)
843 pr_err("ACPI call to set USB S&C mode failed\n");
844 else if (result == TOS_NOT_SUPPORTED)
845 return -ENODEV;
846
847 return result == TOS_SUCCESS ? 0 : -EIO;
848}
849
850static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
851 u32 mode)
852{
853 u32 result;
854
855 if (!sci_open(dev))
856 return -EIO;
857
858 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
859 sci_close(dev);
860 if (result == TOS_FAILURE)
861 pr_err("ACPI call to set USB S&C mode failed\n");
862 else if (result == TOS_NOT_SUPPORTED)
863 return -ENODEV;
864
865 return result == TOS_SUCCESS ? 0 : -EIO;
866}
867
868static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
869 u32 *mode)
870{
871 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
872 u32 out[TCI_WORDS];
873 acpi_status status;
874
875 if (!sci_open(dev))
876 return -EIO;
877
878 in[5] = SCI_USB_CHARGE_BAT_LVL;
879 status = tci_raw(dev, in, out);
880 sci_close(dev);
881 if (ACPI_FAILURE(status)) {
882 pr_err("ACPI call to get USB S&C battery level failed\n");
883 return -EIO;
884 }
885
886 if (out[0] == TOS_NOT_SUPPORTED)
887 return -ENODEV;
888
889 if (out[0] != TOS_SUCCESS)
890 return -EIO;
891
892 *mode = out[2];
893
894 return 0;
895
896}
897
898static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
899 u32 mode)
900{
901 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
902 u32 out[TCI_WORDS];
903 acpi_status status;
904
905 if (!sci_open(dev))
906 return -EIO;
907
908 in[2] = mode;
909 in[5] = SCI_USB_CHARGE_BAT_LVL;
910 status = tci_raw(dev, in, out);
911 sci_close(dev);
912 if (ACPI_FAILURE(status)) {
913 pr_err("ACPI call to set USB S&C battery level failed\n");
914 return -EIO;
915 }
916
917 if (out[0] == TOS_NOT_SUPPORTED)
918 return -ENODEV;
919
920 return out[0] == TOS_SUCCESS ? 0 : -EIO;
921}
922
923static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
924 u32 *state)
925{
926 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
927 u32 out[TCI_WORDS];
928 acpi_status status;
929
930 if (!sci_open(dev))
931 return -EIO;
932
933 in[5] = SCI_USB_CHARGE_RAPID_DSP;
934 status = tci_raw(dev, in, out);
935 sci_close(dev);
936 if (ACPI_FAILURE(status)) {
937 pr_err("ACPI call to get USB Rapid Charge failed\n");
938 return -EIO;
939 }
940
941 if (out[0] == TOS_NOT_SUPPORTED)
942 return -ENODEV;
943
944 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
945 return -EIO;
946
947 *state = out[2];
948
949 return 0;
950}
951
952static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
953 u32 state)
954{
955 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
956 u32 out[TCI_WORDS];
957 acpi_status status;
958
959 if (!sci_open(dev))
960 return -EIO;
961
962 in[2] = state;
963 in[5] = SCI_USB_CHARGE_RAPID_DSP;
964 status = tci_raw(dev, in, out);
965 sci_close(dev);
966 if (ACPI_FAILURE(status)) {
967 pr_err("ACPI call to set USB Rapid Charge failed\n");
968 return -EIO;
969 }
970
971 if (out[0] == TOS_NOT_SUPPORTED)
972 return -ENODEV;
973
974 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
975}
976
977static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
978{
979 u32 result;
980
981 if (!sci_open(dev))
982 return -EIO;
983
984 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
985 sci_close(dev);
986 if (result == TOS_FAILURE)
987 pr_err("ACPI call to get Sleep and Music failed\n");
988 else if (result == TOS_NOT_SUPPORTED)
989 return -ENODEV;
990
991 return result == TOS_SUCCESS ? 0 : -EIO;
992}
993
994static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
995{
996 u32 result;
997
998 if (!sci_open(dev))
999 return -EIO;
1000
1001 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1002 sci_close(dev);
1003 if (result == TOS_FAILURE)
1004 pr_err("ACPI call to set Sleep and Music failed\n");
1005 else if (result == TOS_NOT_SUPPORTED)
1006 return -ENODEV;
1007
1008 return result == TOS_SUCCESS ? 0 : -EIO;
1009}
1010
1011/* Keyboard function keys */
1012static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1013{
1014 u32 result;
1015
1016 if (!sci_open(dev))
1017 return -EIO;
1018
1019 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1020 sci_close(dev);
1021 if (result == TOS_FAILURE)
1022 pr_err("ACPI call to get KBD function keys failed\n");
1023 else if (result == TOS_NOT_SUPPORTED)
1024 return -ENODEV;
1025
1026 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1027}
1028
1029static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1030{
1031 u32 result;
1032
1033 if (!sci_open(dev))
1034 return -EIO;
1035
1036 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1037 sci_close(dev);
1038 if (result == TOS_FAILURE)
1039 pr_err("ACPI call to set KBD function keys failed\n");
1040 else if (result == TOS_NOT_SUPPORTED)
1041 return -ENODEV;
1042
1043 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1044}
1045
1046/* Panel Power ON */
1047static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1048{
1049 u32 result;
1050
1051 if (!sci_open(dev))
1052 return -EIO;
1053
1054 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1055 sci_close(dev);
1056 if (result == TOS_FAILURE)
1057 pr_err("ACPI call to get Panel Power ON failed\n");
1058 else if (result == TOS_NOT_SUPPORTED)
1059 return -ENODEV;
1060
1061 return result == TOS_SUCCESS ? 0 : -EIO;
1062}
1063
1064static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1065{
1066 u32 result;
1067
1068 if (!sci_open(dev))
1069 return -EIO;
1070
1071 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1072 sci_close(dev);
1073 if (result == TOS_FAILURE)
1074 pr_err("ACPI call to set Panel Power ON failed\n");
1075 else if (result == TOS_NOT_SUPPORTED)
1076 return -ENODEV;
1077
1078 return result == TOS_SUCCESS ? 0 : -EIO;
1079}
1080
1081/* USB Three */
1082static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1083{
1084 u32 result;
1085
1086 if (!sci_open(dev))
1087 return -EIO;
1088
1089 result = sci_read(dev, SCI_USB_THREE, state);
1090 sci_close(dev);
1091 if (result == TOS_FAILURE)
1092 pr_err("ACPI call to get USB 3 failed\n");
1093 else if (result == TOS_NOT_SUPPORTED)
1094 return -ENODEV;
1095
1096 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1097}
1098
1099static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1100{
1101 u32 result;
1102
1103 if (!sci_open(dev))
1104 return -EIO;
1105
1106 result = sci_write(dev, SCI_USB_THREE, state);
1107 sci_close(dev);
1108 if (result == TOS_FAILURE)
1109 pr_err("ACPI call to set USB 3 failed\n");
1110 else if (result == TOS_NOT_SUPPORTED)
1111 return -ENODEV;
1112
1113 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1114}
1115
1116/* Hotkey Event type */
1117static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1118 u32 *type)
1119{
1120 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1121 u32 out[TCI_WORDS];
1122 acpi_status status;
1123
1124 status = tci_raw(dev, in, out);
1125 if (ACPI_FAILURE(status)) {
1126 pr_err("ACPI call to get System type failed\n");
1127 return -EIO;
1128 }
1129
1130 if (out[0] == TOS_NOT_SUPPORTED)
1131 return -ENODEV;
1132
1133 if (out[0] != TOS_SUCCESS)
1134 return -EIO;
1135
1136 *type = out[3];
1137
1138 return 0;
1139}
1140
1141/* Wireless status (RFKill, WLAN, BT, WWAN) */
1142static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1143{
1144 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1145 u32 out[TCI_WORDS];
1146 acpi_status status;
1147
1148 in[3] = HCI_WIRELESS_STATUS;
1149 status = tci_raw(dev, in, out);
1150
1151 if (ACPI_FAILURE(status)) {
1152 pr_err("ACPI call to get Wireless status failed\n");
1153 return -EIO;
1154 }
1155
1156 if (out[0] == TOS_NOT_SUPPORTED)
1157 return -ENODEV;
1158
1159 if (out[0] != TOS_SUCCESS)
1160 return -EIO;
1161
1162 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1163
1164 return 0;
1165}
1166
1167/* WWAN */
1168static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1169{
1170 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1171 u32 out[TCI_WORDS];
1172 acpi_status status;
1173
1174 dev->wwan_supported = 0;
1175
1176 /*
1177 * WWAN support can be queried by setting the in[3] value to
1178 * HCI_WIRELESS_WWAN (0x03).
1179 *
1180 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1181 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1182 *
1183 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1184 * or TOS_NOT_SUPPORTED (0x8000).
1185 */
1186 in[3] = HCI_WIRELESS_WWAN;
1187 status = tci_raw(dev, in, out);
1188 if (ACPI_FAILURE(status)) {
1189 pr_err("ACPI call to get WWAN status failed\n");
1190 return;
1191 }
1192
1193 if (out[0] != TOS_SUCCESS)
1194 return;
1195
1196 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1197}
1198
1199static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1200{
1201 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1202 u32 out[TCI_WORDS];
1203 acpi_status status;
1204
1205 in[3] = HCI_WIRELESS_WWAN_STATUS;
1206 status = tci_raw(dev, in, out);
1207 if (ACPI_FAILURE(status)) {
1208 pr_err("ACPI call to set WWAN status failed\n");
1209 return -EIO;
1210 }
1211
1212 if (out[0] == TOS_NOT_SUPPORTED)
1213 return -ENODEV;
1214
1215 if (out[0] != TOS_SUCCESS)
1216 return -EIO;
1217
1218 /*
1219 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1220 * (de)activate the device, but some others need the
1221 * HCI_WIRELESS_WWAN_POWER call as well.
1222 */
1223 in[3] = HCI_WIRELESS_WWAN_POWER;
1224 status = tci_raw(dev, in, out);
1225 if (ACPI_FAILURE(status)) {
1226 pr_err("ACPI call to set WWAN power failed\n");
1227 return -EIO;
1228 }
1229
1230 if (out[0] == TOS_NOT_SUPPORTED)
1231 return -ENODEV;
1232
1233 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1234}
1235
1236/* Cooling Method */
1237static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1238{
1239 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1240 u32 out[TCI_WORDS];
1241 acpi_status status;
1242
1243 dev->cooling_method_supported = 0;
1244 dev->max_cooling_method = 0;
1245
1246 status = tci_raw(dev, in, out);
1247 if (ACPI_FAILURE(status)) {
1248 pr_err("ACPI call to get Cooling Method failed\n");
1249 return;
1250 }
1251
1252 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1253 return;
1254
1255 dev->cooling_method_supported = 1;
1256 dev->max_cooling_method = out[3];
1257}
1258
1259static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1260{
1261 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1262
1263 if (result == TOS_FAILURE)
1264 pr_err("ACPI call to get Cooling Method failed\n");
1265
1266 if (result == TOS_NOT_SUPPORTED)
1267 return -ENODEV;
1268
1269 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1270}
1271
1272static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1273{
1274 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1275
1276 if (result == TOS_FAILURE)
1277 pr_err("ACPI call to set Cooling Method failed\n");
1278
1279 if (result == TOS_NOT_SUPPORTED)
1280 return -ENODEV;
1281
1282 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1283}
1284
1285/* Transflective Backlight */
1286static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1287{
1288 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1289
1290 if (result == TOS_FAILURE)
1291 pr_err("ACPI call to get Transflective Backlight failed\n");
1292 else if (result == TOS_NOT_SUPPORTED)
1293 return -ENODEV;
1294
1295 return result == TOS_SUCCESS ? 0 : -EIO;
1296}
1297
1298static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1299{
1300 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1301
1302 if (result == TOS_FAILURE)
1303 pr_err("ACPI call to set Transflective Backlight failed\n");
1304 else if (result == TOS_NOT_SUPPORTED)
1305 return -ENODEV;
1306
1307 return result == TOS_SUCCESS ? 0 : -EIO;
1308}
1309
1310static struct proc_dir_entry *toshiba_proc_dir;
1311
1312/* LCD Brightness */
1313static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1314{
1315 int brightness = 0;
1316 u32 result;
1317 u32 value;
1318
1319 if (dev->tr_backlight_supported) {
1320 int ret = get_tr_backlight_status(dev, &value);
1321
1322 if (ret)
1323 return ret;
1324 if (value)
1325 return 0;
1326 brightness++;
1327 }
1328
1329 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1330 if (result == TOS_FAILURE)
1331 pr_err("ACPI call to get LCD Brightness failed\n");
1332 else if (result == TOS_NOT_SUPPORTED)
1333 return -ENODEV;
1334
1335 return result == TOS_SUCCESS ?
1336 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1337 -EIO;
1338}
1339
1340static int get_lcd_brightness(struct backlight_device *bd)
1341{
1342 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1343
1344 return __get_lcd_brightness(dev);
1345}
1346
1347static int lcd_proc_show(struct seq_file *m, void *v)
1348{
1349 struct toshiba_acpi_dev *dev = m->private;
1350 int levels;
1351 int value;
1352
1353 if (!dev->backlight_dev)
1354 return -ENODEV;
1355
1356 levels = dev->backlight_dev->props.max_brightness + 1;
1357 value = get_lcd_brightness(dev->backlight_dev);
1358 if (value < 0) {
1359 pr_err("Error reading LCD brightness\n");
1360 return value;
1361 }
1362
1363 seq_printf(m, "brightness: %d\n", value);
1364 seq_printf(m, "brightness_levels: %d\n", levels);
1365
1366 return 0;
1367}
1368
1369static int lcd_proc_open(struct inode *inode, struct file *file)
1370{
1371 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1372}
1373
1374static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1375{
1376 u32 result;
1377
1378 if (dev->tr_backlight_supported) {
1379 int ret = set_tr_backlight_status(dev, !value);
1380
1381 if (ret)
1382 return ret;
1383 if (value)
1384 value--;
1385 }
1386
1387 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1388 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1389 if (result == TOS_FAILURE)
1390 pr_err("ACPI call to set LCD Brightness failed\n");
1391 else if (result == TOS_NOT_SUPPORTED)
1392 return -ENODEV;
1393
1394 return result == TOS_SUCCESS ? 0 : -EIO;
1395}
1396
1397static int set_lcd_status(struct backlight_device *bd)
1398{
1399 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1400
1401 return set_lcd_brightness(dev, bd->props.brightness);
1402}
1403
1404static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1405 size_t count, loff_t *pos)
1406{
1407 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1408 char cmd[42];
1409 size_t len;
1410 int levels;
1411 int value;
1412
1413 len = min(count, sizeof(cmd) - 1);
1414 if (copy_from_user(cmd, buf, len))
1415 return -EFAULT;
1416 cmd[len] = '\0';
1417
1418 levels = dev->backlight_dev->props.max_brightness + 1;
1419 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1420 value < 0 && value > levels)
1421 return -EINVAL;
1422
1423 if (set_lcd_brightness(dev, value))
1424 return -EIO;
1425
1426 return count;
1427}
1428
1429static const struct proc_ops lcd_proc_ops = {
1430 .proc_open = lcd_proc_open,
1431 .proc_read = seq_read,
1432 .proc_lseek = seq_lseek,
1433 .proc_release = single_release,
1434 .proc_write = lcd_proc_write,
1435};
1436
1437/* Video-Out */
1438static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1439{
1440 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1441
1442 if (result == TOS_FAILURE)
1443 pr_err("ACPI call to get Video-Out failed\n");
1444 else if (result == TOS_NOT_SUPPORTED)
1445 return -ENODEV;
1446
1447 return result == TOS_SUCCESS ? 0 : -EIO;
1448}
1449
1450static int video_proc_show(struct seq_file *m, void *v)
1451{
1452 struct toshiba_acpi_dev *dev = m->private;
1453 int is_lcd, is_crt, is_tv;
1454 u32 value;
1455
1456 if (get_video_status(dev, &value))
1457 return -EIO;
1458
1459 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1460 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1461 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1462
1463 seq_printf(m, "lcd_out: %d\n", is_lcd);
1464 seq_printf(m, "crt_out: %d\n", is_crt);
1465 seq_printf(m, "tv_out: %d\n", is_tv);
1466
1467 return 0;
1468}
1469
1470static int video_proc_open(struct inode *inode, struct file *file)
1471{
1472 return single_open(file, video_proc_show, PDE_DATA(inode));
1473}
1474
1475static ssize_t video_proc_write(struct file *file, const char __user *buf,
1476 size_t count, loff_t *pos)
1477{
1478 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1479 char *buffer;
1480 char *cmd;
1481 int lcd_out = -1, crt_out = -1, tv_out = -1;
1482 int remain = count;
1483 int value;
1484 int ret;
1485 u32 video_out;
1486
1487 cmd = memdup_user_nul(buf, count);
1488 if (IS_ERR(cmd))
1489 return PTR_ERR(cmd);
1490
1491 buffer = cmd;
1492
1493 /*
1494 * Scan expression. Multiple expressions may be delimited with ;
1495 * NOTE: To keep scanning simple, invalid fields are ignored.
1496 */
1497 while (remain) {
1498 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1499 lcd_out = value & 1;
1500 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1501 crt_out = value & 1;
1502 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1503 tv_out = value & 1;
1504 /* Advance to one character past the next ; */
1505 do {
1506 ++buffer;
1507 --remain;
1508 } while (remain && *(buffer - 1) != ';');
1509 }
1510
1511 kfree(cmd);
1512
1513 ret = get_video_status(dev, &video_out);
1514 if (!ret) {
1515 unsigned int new_video_out = video_out;
1516
1517 if (lcd_out != -1)
1518 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1519 if (crt_out != -1)
1520 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1521 if (tv_out != -1)
1522 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1523 /*
1524 * To avoid unnecessary video disruption, only write the new
1525 * video setting if something changed.
1526 */
1527 if (new_video_out != video_out)
1528 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1529 }
1530
1531 return ret ? -EIO : count;
1532}
1533
1534static const struct proc_ops video_proc_ops = {
1535 .proc_open = video_proc_open,
1536 .proc_read = seq_read,
1537 .proc_lseek = seq_lseek,
1538 .proc_release = single_release,
1539 .proc_write = video_proc_write,
1540};
1541
1542/* Fan status */
1543static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1544{
1545 u32 result = hci_read(dev, HCI_FAN, status);
1546
1547 if (result == TOS_FAILURE)
1548 pr_err("ACPI call to get Fan status failed\n");
1549 else if (result == TOS_NOT_SUPPORTED)
1550 return -ENODEV;
1551
1552 return result == TOS_SUCCESS ? 0 : -EIO;
1553}
1554
1555static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1556{
1557 u32 result = hci_write(dev, HCI_FAN, status);
1558
1559 if (result == TOS_FAILURE)
1560 pr_err("ACPI call to set Fan status failed\n");
1561 else if (result == TOS_NOT_SUPPORTED)
1562 return -ENODEV;
1563
1564 return result == TOS_SUCCESS ? 0 : -EIO;
1565}
1566
1567static int fan_proc_show(struct seq_file *m, void *v)
1568{
1569 struct toshiba_acpi_dev *dev = m->private;
1570 u32 value;
1571
1572 if (get_fan_status(dev, &value))
1573 return -EIO;
1574
1575 seq_printf(m, "running: %d\n", (value > 0));
1576 seq_printf(m, "force_on: %d\n", dev->force_fan);
1577
1578 return 0;
1579}
1580
1581static int fan_proc_open(struct inode *inode, struct file *file)
1582{
1583 return single_open(file, fan_proc_show, PDE_DATA(inode));
1584}
1585
1586static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1587 size_t count, loff_t *pos)
1588{
1589 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1590 char cmd[42];
1591 size_t len;
1592 int value;
1593
1594 len = min(count, sizeof(cmd) - 1);
1595 if (copy_from_user(cmd, buf, len))
1596 return -EFAULT;
1597 cmd[len] = '\0';
1598
1599 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1600 value != 0 && value != 1)
1601 return -EINVAL;
1602
1603 if (set_fan_status(dev, value))
1604 return -EIO;
1605
1606 dev->force_fan = value;
1607
1608 return count;
1609}
1610
1611static const struct proc_ops fan_proc_ops = {
1612 .proc_open = fan_proc_open,
1613 .proc_read = seq_read,
1614 .proc_lseek = seq_lseek,
1615 .proc_release = single_release,
1616 .proc_write = fan_proc_write,
1617};
1618
1619static int keys_proc_show(struct seq_file *m, void *v)
1620{
1621 struct toshiba_acpi_dev *dev = m->private;
1622
1623 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1624 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1625
1626 return 0;
1627}
1628
1629static int keys_proc_open(struct inode *inode, struct file *file)
1630{
1631 return single_open(file, keys_proc_show, PDE_DATA(inode));
1632}
1633
1634static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1635 size_t count, loff_t *pos)
1636{
1637 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1638 char cmd[42];
1639 size_t len;
1640 int value;
1641
1642 len = min(count, sizeof(cmd) - 1);
1643 if (copy_from_user(cmd, buf, len))
1644 return -EFAULT;
1645 cmd[len] = '\0';
1646
1647 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1648 dev->key_event_valid = 0;
1649 else
1650 return -EINVAL;
1651
1652 return count;
1653}
1654
1655static const struct proc_ops keys_proc_ops = {
1656 .proc_open = keys_proc_open,
1657 .proc_read = seq_read,
1658 .proc_lseek = seq_lseek,
1659 .proc_release = single_release,
1660 .proc_write = keys_proc_write,
1661};
1662
1663static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1664{
1665 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1666 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1667 return 0;
1668}
1669
1670/*
1671 * Proc and module init
1672 */
1673
1674#define PROC_TOSHIBA "toshiba"
1675
1676static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1677{
1678 if (dev->backlight_dev)
1679 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1680 &lcd_proc_ops, dev);
1681 if (dev->video_supported)
1682 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1683 &video_proc_ops, dev);
1684 if (dev->fan_supported)
1685 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1686 &fan_proc_ops, dev);
1687 if (dev->hotkey_dev)
1688 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1689 &keys_proc_ops, dev);
1690 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1691 version_proc_show, dev);
1692}
1693
1694static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1695{
1696 if (dev->backlight_dev)
1697 remove_proc_entry("lcd", toshiba_proc_dir);
1698 if (dev->video_supported)
1699 remove_proc_entry("video", toshiba_proc_dir);
1700 if (dev->fan_supported)
1701 remove_proc_entry("fan", toshiba_proc_dir);
1702 if (dev->hotkey_dev)
1703 remove_proc_entry("keys", toshiba_proc_dir);
1704 remove_proc_entry("version", toshiba_proc_dir);
1705}
1706
1707static const struct backlight_ops toshiba_backlight_data = {
1708 .options = BL_CORE_SUSPENDRESUME,
1709 .get_brightness = get_lcd_brightness,
1710 .update_status = set_lcd_status,
1711};
1712
1713/* Keyboard backlight work */
1714static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1715
1716static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1717
1718/*
1719 * Sysfs files
1720 */
1721static ssize_t version_show(struct device *dev,
1722 struct device_attribute *attr, char *buf)
1723{
1724 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1725}
1726static DEVICE_ATTR_RO(version);
1727
1728static ssize_t fan_store(struct device *dev,
1729 struct device_attribute *attr,
1730 const char *buf, size_t count)
1731{
1732 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1733 int state;
1734 int ret;
1735
1736 ret = kstrtoint(buf, 0, &state);
1737 if (ret)
1738 return ret;
1739
1740 if (state != 0 && state != 1)
1741 return -EINVAL;
1742
1743 ret = set_fan_status(toshiba, state);
1744 if (ret)
1745 return ret;
1746
1747 return count;
1748}
1749
1750static ssize_t fan_show(struct device *dev,
1751 struct device_attribute *attr, char *buf)
1752{
1753 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1754 u32 value;
1755 int ret;
1756
1757 ret = get_fan_status(toshiba, &value);
1758 if (ret)
1759 return ret;
1760
1761 return sprintf(buf, "%d\n", value);
1762}
1763static DEVICE_ATTR_RW(fan);
1764
1765static ssize_t kbd_backlight_mode_store(struct device *dev,
1766 struct device_attribute *attr,
1767 const char *buf, size_t count)
1768{
1769 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1770 int mode;
1771 int ret;
1772
1773
1774 ret = kstrtoint(buf, 0, &mode);
1775 if (ret)
1776 return ret;
1777
1778 /* Check for supported modes depending on keyboard backlight type */
1779 if (toshiba->kbd_type == 1) {
1780 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1781 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1782 return -EINVAL;
1783 } else if (toshiba->kbd_type == 2) {
1784 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1785 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1786 mode != SCI_KBD_MODE_OFF)
1787 return -EINVAL;
1788 }
1789
1790 /*
1791 * Set the Keyboard Backlight Mode where:
1792 * Auto - KBD backlight turns off automatically in given time
1793 * FN-Z - KBD backlight "toggles" when hotkey pressed
1794 * ON - KBD backlight is always on
1795 * OFF - KBD backlight is always off
1796 */
1797
1798 /* Only make a change if the actual mode has changed */
1799 if (toshiba->kbd_mode != mode) {
1800 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1801 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1802
1803 /* OR the "base time" to the actual method format */
1804 if (toshiba->kbd_type == 1) {
1805 /* Type 1 requires the current mode */
1806 time |= toshiba->kbd_mode;
1807 } else if (toshiba->kbd_type == 2) {
1808 /* Type 2 requires the desired mode */
1809 time |= mode;
1810 }
1811
1812 ret = toshiba_kbd_illum_status_set(toshiba, time);
1813 if (ret)
1814 return ret;
1815
1816 toshiba->kbd_mode = mode;
1817 toshiba_acpi->kbd_mode = mode;
1818
1819 /*
1820 * Some laptop models with the second generation backlit
1821 * keyboard (type 2) do not generate the keyboard backlight
1822 * changed event (0x92), and thus, the driver will never update
1823 * the sysfs entries.
1824 *
1825 * The event is generated right when changing the keyboard
1826 * backlight mode and the *notify function will set the
1827 * kbd_event_generated to true.
1828 *
1829 * In case the event is not generated, schedule the keyboard
1830 * backlight work to update the sysfs entries and emulate the
1831 * event via genetlink.
1832 */
1833 if (toshiba->kbd_type == 2 &&
1834 !toshiba->kbd_event_generated)
1835 schedule_work(&kbd_bl_work);
1836 }
1837
1838 return count;
1839}
1840
1841static ssize_t kbd_backlight_mode_show(struct device *dev,
1842 struct device_attribute *attr,
1843 char *buf)
1844{
1845 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1846 u32 time;
1847
1848 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1849 return -EIO;
1850
1851 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1852}
1853static DEVICE_ATTR_RW(kbd_backlight_mode);
1854
1855static ssize_t kbd_type_show(struct device *dev,
1856 struct device_attribute *attr, char *buf)
1857{
1858 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1859
1860 return sprintf(buf, "%d\n", toshiba->kbd_type);
1861}
1862static DEVICE_ATTR_RO(kbd_type);
1863
1864static ssize_t available_kbd_modes_show(struct device *dev,
1865 struct device_attribute *attr,
1866 char *buf)
1867{
1868 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1869
1870 if (toshiba->kbd_type == 1)
1871 return sprintf(buf, "0x%x 0x%x\n",
1872 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1873
1874 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1875 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1876}
1877static DEVICE_ATTR_RO(available_kbd_modes);
1878
1879static ssize_t kbd_backlight_timeout_store(struct device *dev,
1880 struct device_attribute *attr,
1881 const char *buf, size_t count)
1882{
1883 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1884 int time;
1885 int ret;
1886
1887 ret = kstrtoint(buf, 0, &time);
1888 if (ret)
1889 return ret;
1890
1891 /* Check for supported values depending on kbd_type */
1892 if (toshiba->kbd_type == 1) {
1893 if (time < 0 || time > 60)
1894 return -EINVAL;
1895 } else if (toshiba->kbd_type == 2) {
1896 if (time < 1 || time > 60)
1897 return -EINVAL;
1898 }
1899
1900 /* Set the Keyboard Backlight Timeout */
1901
1902 /* Only make a change if the actual timeout has changed */
1903 if (toshiba->kbd_time != time) {
1904 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1905 time = time << HCI_MISC_SHIFT;
1906 /* OR the "base time" to the actual method format */
1907 if (toshiba->kbd_type == 1)
1908 time |= SCI_KBD_MODE_FNZ;
1909 else if (toshiba->kbd_type == 2)
1910 time |= SCI_KBD_MODE_AUTO;
1911
1912 ret = toshiba_kbd_illum_status_set(toshiba, time);
1913 if (ret)
1914 return ret;
1915
1916 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1917 }
1918
1919 return count;
1920}
1921
1922static ssize_t kbd_backlight_timeout_show(struct device *dev,
1923 struct device_attribute *attr,
1924 char *buf)
1925{
1926 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1927 u32 time;
1928
1929 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1930 return -EIO;
1931
1932 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1933}
1934static DEVICE_ATTR_RW(kbd_backlight_timeout);
1935
1936static ssize_t touchpad_store(struct device *dev,
1937 struct device_attribute *attr,
1938 const char *buf, size_t count)
1939{
1940 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1941 int state;
1942 int ret;
1943
1944 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1945 ret = kstrtoint(buf, 0, &state);
1946 if (ret)
1947 return ret;
1948 if (state != 0 && state != 1)
1949 return -EINVAL;
1950
1951 ret = toshiba_touchpad_set(toshiba, state);
1952 if (ret)
1953 return ret;
1954
1955 return count;
1956}
1957
1958static ssize_t touchpad_show(struct device *dev,
1959 struct device_attribute *attr, char *buf)
1960{
1961 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1962 u32 state;
1963 int ret;
1964
1965 ret = toshiba_touchpad_get(toshiba, &state);
1966 if (ret < 0)
1967 return ret;
1968
1969 return sprintf(buf, "%i\n", state);
1970}
1971static DEVICE_ATTR_RW(touchpad);
1972
1973static ssize_t usb_sleep_charge_show(struct device *dev,
1974 struct device_attribute *attr, char *buf)
1975{
1976 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1977 u32 mode;
1978 int ret;
1979
1980 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
1981 if (ret < 0)
1982 return ret;
1983
1984 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
1985}
1986
1987static ssize_t usb_sleep_charge_store(struct device *dev,
1988 struct device_attribute *attr,
1989 const char *buf, size_t count)
1990{
1991 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1992 int state;
1993 u32 mode;
1994 int ret;
1995
1996 ret = kstrtoint(buf, 0, &state);
1997 if (ret)
1998 return ret;
1999 /*
2000 * Check for supported values, where:
2001 * 0 - Disabled
2002 * 1 - Alternate (Non USB conformant devices that require more power)
2003 * 2 - Auto (USB conformant devices)
2004 * 3 - Typical
2005 */
2006 if (state != 0 && state != 1 && state != 2 && state != 3)
2007 return -EINVAL;
2008
2009 /* Set the USB charging mode to internal value */
2010 mode = toshiba->usbsc_mode_base;
2011 if (state == 0)
2012 mode |= SCI_USB_CHARGE_DISABLED;
2013 else if (state == 1)
2014 mode |= SCI_USB_CHARGE_ALTERNATE;
2015 else if (state == 2)
2016 mode |= SCI_USB_CHARGE_AUTO;
2017 else if (state == 3)
2018 mode |= SCI_USB_CHARGE_TYPICAL;
2019
2020 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2021 if (ret)
2022 return ret;
2023
2024 return count;
2025}
2026static DEVICE_ATTR_RW(usb_sleep_charge);
2027
2028static ssize_t sleep_functions_on_battery_show(struct device *dev,
2029 struct device_attribute *attr,
2030 char *buf)
2031{
2032 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2033 int bat_lvl, status;
2034 u32 state;
2035 int ret;
2036 int tmp;
2037
2038 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2039 if (ret < 0)
2040 return ret;
2041
2042 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2043 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2044 status = (tmp == 0x4) ? 1 : 0;
2045 /* Determine the battery level set */
2046 bat_lvl = state >> HCI_MISC_SHIFT;
2047
2048 return sprintf(buf, "%d %d\n", status, bat_lvl);
2049}
2050
2051static ssize_t sleep_functions_on_battery_store(struct device *dev,
2052 struct device_attribute *attr,
2053 const char *buf, size_t count)
2054{
2055 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2056 u32 status;
2057 int value;
2058 int ret;
2059 int tmp;
2060
2061 ret = kstrtoint(buf, 0, &value);
2062 if (ret)
2063 return ret;
2064
2065 /*
2066 * Set the status of the function:
2067 * 0 - Disabled
2068 * 1-100 - Enabled
2069 */
2070 if (value < 0 || value > 100)
2071 return -EINVAL;
2072
2073 if (value == 0) {
2074 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2075 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2076 } else {
2077 tmp = value << HCI_MISC_SHIFT;
2078 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2079 }
2080 ret = toshiba_sleep_functions_status_set(toshiba, status);
2081 if (ret < 0)
2082 return ret;
2083
2084 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2085
2086 return count;
2087}
2088static DEVICE_ATTR_RW(sleep_functions_on_battery);
2089
2090static ssize_t usb_rapid_charge_show(struct device *dev,
2091 struct device_attribute *attr, char *buf)
2092{
2093 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2094 u32 state;
2095 int ret;
2096
2097 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2098 if (ret < 0)
2099 return ret;
2100
2101 return sprintf(buf, "%d\n", state);
2102}
2103
2104static ssize_t usb_rapid_charge_store(struct device *dev,
2105 struct device_attribute *attr,
2106 const char *buf, size_t count)
2107{
2108 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2109 int state;
2110 int ret;
2111
2112 ret = kstrtoint(buf, 0, &state);
2113 if (ret)
2114 return ret;
2115 if (state != 0 && state != 1)
2116 return -EINVAL;
2117
2118 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2119 if (ret)
2120 return ret;
2121
2122 return count;
2123}
2124static DEVICE_ATTR_RW(usb_rapid_charge);
2125
2126static ssize_t usb_sleep_music_show(struct device *dev,
2127 struct device_attribute *attr, char *buf)
2128{
2129 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2130 u32 state;
2131 int ret;
2132
2133 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2134 if (ret < 0)
2135 return ret;
2136
2137 return sprintf(buf, "%d\n", state);
2138}
2139
2140static ssize_t usb_sleep_music_store(struct device *dev,
2141 struct device_attribute *attr,
2142 const char *buf, size_t count)
2143{
2144 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2145 int state;
2146 int ret;
2147
2148 ret = kstrtoint(buf, 0, &state);
2149 if (ret)
2150 return ret;
2151 if (state != 0 && state != 1)
2152 return -EINVAL;
2153
2154 ret = toshiba_usb_sleep_music_set(toshiba, state);
2155 if (ret)
2156 return ret;
2157
2158 return count;
2159}
2160static DEVICE_ATTR_RW(usb_sleep_music);
2161
2162static ssize_t kbd_function_keys_show(struct device *dev,
2163 struct device_attribute *attr, char *buf)
2164{
2165 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2166 int mode;
2167 int ret;
2168
2169 ret = toshiba_function_keys_get(toshiba, &mode);
2170 if (ret < 0)
2171 return ret;
2172
2173 return sprintf(buf, "%d\n", mode);
2174}
2175
2176static ssize_t kbd_function_keys_store(struct device *dev,
2177 struct device_attribute *attr,
2178 const char *buf, size_t count)
2179{
2180 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2181 int mode;
2182 int ret;
2183
2184 ret = kstrtoint(buf, 0, &mode);
2185 if (ret)
2186 return ret;
2187 /*
2188 * Check for the function keys mode where:
2189 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2190 * 1 - Special functions (Opposite of the above setting)
2191 */
2192 if (mode != 0 && mode != 1)
2193 return -EINVAL;
2194
2195 ret = toshiba_function_keys_set(toshiba, mode);
2196 if (ret)
2197 return ret;
2198
2199 pr_info("Reboot for changes to KBD Function Keys to take effect");
2200
2201 return count;
2202}
2203static DEVICE_ATTR_RW(kbd_function_keys);
2204
2205static ssize_t panel_power_on_show(struct device *dev,
2206 struct device_attribute *attr, char *buf)
2207{
2208 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2209 u32 state;
2210 int ret;
2211
2212 ret = toshiba_panel_power_on_get(toshiba, &state);
2213 if (ret < 0)
2214 return ret;
2215
2216 return sprintf(buf, "%d\n", state);
2217}
2218
2219static ssize_t panel_power_on_store(struct device *dev,
2220 struct device_attribute *attr,
2221 const char *buf, size_t count)
2222{
2223 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2224 int state;
2225 int ret;
2226
2227 ret = kstrtoint(buf, 0, &state);
2228 if (ret)
2229 return ret;
2230 if (state != 0 && state != 1)
2231 return -EINVAL;
2232
2233 ret = toshiba_panel_power_on_set(toshiba, state);
2234 if (ret)
2235 return ret;
2236
2237 pr_info("Reboot for changes to Panel Power ON to take effect");
2238
2239 return count;
2240}
2241static DEVICE_ATTR_RW(panel_power_on);
2242
2243static ssize_t usb_three_show(struct device *dev,
2244 struct device_attribute *attr, char *buf)
2245{
2246 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2247 u32 state;
2248 int ret;
2249
2250 ret = toshiba_usb_three_get(toshiba, &state);
2251 if (ret < 0)
2252 return ret;
2253
2254 return sprintf(buf, "%d\n", state);
2255}
2256
2257static ssize_t usb_three_store(struct device *dev,
2258 struct device_attribute *attr,
2259 const char *buf, size_t count)
2260{
2261 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2262 int state;
2263 int ret;
2264
2265 ret = kstrtoint(buf, 0, &state);
2266 if (ret)
2267 return ret;
2268 /*
2269 * Check for USB 3 mode where:
2270 * 0 - Disabled (Acts like a USB 2 port, saving power)
2271 * 1 - Enabled
2272 */
2273 if (state != 0 && state != 1)
2274 return -EINVAL;
2275
2276 ret = toshiba_usb_three_set(toshiba, state);
2277 if (ret)
2278 return ret;
2279
2280 pr_info("Reboot for changes to USB 3 to take effect");
2281
2282 return count;
2283}
2284static DEVICE_ATTR_RW(usb_three);
2285
2286static ssize_t cooling_method_show(struct device *dev,
2287 struct device_attribute *attr, char *buf)
2288{
2289 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2290 int state;
2291 int ret;
2292
2293 ret = toshiba_cooling_method_get(toshiba, &state);
2294 if (ret < 0)
2295 return ret;
2296
2297 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2298}
2299
2300static ssize_t cooling_method_store(struct device *dev,
2301 struct device_attribute *attr,
2302 const char *buf, size_t count)
2303{
2304 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2305 int state;
2306 int ret;
2307
2308 ret = kstrtoint(buf, 0, &state);
2309 if (ret)
2310 return ret;
2311
2312 /*
2313 * Check for supported values
2314 * Depending on the laptop model, some only support these two:
2315 * 0 - Maximum Performance
2316 * 1 - Battery Optimized
2317 *
2318 * While some others support all three methods:
2319 * 0 - Maximum Performance
2320 * 1 - Performance
2321 * 2 - Battery Optimized
2322 */
2323 if (state < 0 || state > toshiba->max_cooling_method)
2324 return -EINVAL;
2325
2326 ret = toshiba_cooling_method_set(toshiba, state);
2327 if (ret)
2328 return ret;
2329
2330 return count;
2331}
2332static DEVICE_ATTR_RW(cooling_method);
2333
2334static struct attribute *toshiba_attributes[] = {
2335 &dev_attr_version.attr,
2336 &dev_attr_fan.attr,
2337 &dev_attr_kbd_backlight_mode.attr,
2338 &dev_attr_kbd_type.attr,
2339 &dev_attr_available_kbd_modes.attr,
2340 &dev_attr_kbd_backlight_timeout.attr,
2341 &dev_attr_touchpad.attr,
2342 &dev_attr_usb_sleep_charge.attr,
2343 &dev_attr_sleep_functions_on_battery.attr,
2344 &dev_attr_usb_rapid_charge.attr,
2345 &dev_attr_usb_sleep_music.attr,
2346 &dev_attr_kbd_function_keys.attr,
2347 &dev_attr_panel_power_on.attr,
2348 &dev_attr_usb_three.attr,
2349 &dev_attr_cooling_method.attr,
2350 NULL,
2351};
2352
2353static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2354 struct attribute *attr, int idx)
2355{
2356 struct device *dev = container_of(kobj, struct device, kobj);
2357 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2358 bool exists = true;
2359
2360 if (attr == &dev_attr_fan.attr)
2361 exists = (drv->fan_supported) ? true : false;
2362 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2363 exists = (drv->kbd_illum_supported) ? true : false;
2364 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2365 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2366 else if (attr == &dev_attr_touchpad.attr)
2367 exists = (drv->touchpad_supported) ? true : false;
2368 else if (attr == &dev_attr_usb_sleep_charge.attr)
2369 exists = (drv->usb_sleep_charge_supported) ? true : false;
2370 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2371 exists = (drv->usb_sleep_charge_supported) ? true : false;
2372 else if (attr == &dev_attr_usb_rapid_charge.attr)
2373 exists = (drv->usb_rapid_charge_supported) ? true : false;
2374 else if (attr == &dev_attr_usb_sleep_music.attr)
2375 exists = (drv->usb_sleep_music_supported) ? true : false;
2376 else if (attr == &dev_attr_kbd_function_keys.attr)
2377 exists = (drv->kbd_function_keys_supported) ? true : false;
2378 else if (attr == &dev_attr_panel_power_on.attr)
2379 exists = (drv->panel_power_on_supported) ? true : false;
2380 else if (attr == &dev_attr_usb_three.attr)
2381 exists = (drv->usb_three_supported) ? true : false;
2382 else if (attr == &dev_attr_cooling_method.attr)
2383 exists = (drv->cooling_method_supported) ? true : false;
2384
2385 return exists ? attr->mode : 0;
2386}
2387
2388static const struct attribute_group toshiba_attr_group = {
2389 .is_visible = toshiba_sysfs_is_visible,
2390 .attrs = toshiba_attributes,
2391};
2392
2393static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2394{
2395 /* Update the sysfs entries */
2396 if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2397 &toshiba_attr_group))
2398 pr_err("Unable to update sysfs entries\n");
2399
2400 /* Notify LED subsystem about keyboard backlight change */
2401 if (toshiba_acpi->kbd_type == 2 &&
2402 toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2403 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2404 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2405 LED_FULL : LED_OFF);
2406
2407 /* Emulate the keyboard backlight event */
2408 acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2409 dev_name(&toshiba_acpi->acpi_dev->dev),
2410 0x92, 0);
2411}
2412
2413/*
2414 * IIO device
2415 */
2416
2417enum toshiba_iio_accel_chan {
2418 AXIS_X,
2419 AXIS_Y,
2420 AXIS_Z
2421};
2422
2423static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2424{
2425 u32 xyval, zval;
2426 int ret;
2427
2428 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2429 if (ret < 0)
2430 return ret;
2431
2432 switch (chan) {
2433 case AXIS_X:
2434 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2435 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2436 case AXIS_Y:
2437 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2438 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2439 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2440 case AXIS_Z:
2441 return zval & HCI_ACCEL_DIRECTION_MASK ?
2442 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2443 }
2444
2445 return ret;
2446}
2447
2448static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2449 struct iio_chan_spec const *chan,
2450 int *val, int *val2, long mask)
2451{
2452 int ret;
2453
2454 switch (mask) {
2455 case IIO_CHAN_INFO_RAW:
2456 ret = toshiba_iio_accel_get_axis(chan->channel);
2457 if (ret == -EIO || ret == -ENODEV)
2458 return ret;
2459
2460 *val = ret;
2461
2462 return IIO_VAL_INT;
2463 }
2464
2465 return -EINVAL;
2466}
2467
2468#define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2469 .type = IIO_ACCEL, \
2470 .modified = 1, \
2471 .channel = chan, \
2472 .channel2 = IIO_MOD_##axis, \
2473 .output = 1, \
2474 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2475}
2476
2477static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2478 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2479 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2480 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2481};
2482
2483static const struct iio_info toshiba_iio_accel_info = {
2484 .read_raw = &toshiba_iio_accel_read_raw,
2485};
2486
2487/*
2488 * Misc device
2489 */
2490static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2491{
2492 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2493 regs->edx, regs->esi, regs->edi };
2494 u32 out[TCI_WORDS];
2495 acpi_status status;
2496
2497 status = tci_raw(toshiba_acpi, in, out);
2498 if (ACPI_FAILURE(status)) {
2499 pr_err("ACPI call to query SMM registers failed\n");
2500 return -EIO;
2501 }
2502
2503 /* Fillout the SMM struct with the TCI call results */
2504 regs->eax = out[0];
2505 regs->ebx = out[1];
2506 regs->ecx = out[2];
2507 regs->edx = out[3];
2508 regs->esi = out[4];
2509 regs->edi = out[5];
2510
2511 return 0;
2512}
2513
2514static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2515 unsigned long arg)
2516{
2517 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2518 SMMRegisters regs;
2519 int ret;
2520
2521 if (!argp)
2522 return -EINVAL;
2523
2524 switch (cmd) {
2525 case TOSH_SMM:
2526 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2527 return -EFAULT;
2528 ret = toshiba_acpi_smm_bridge(®s);
2529 if (ret)
2530 return ret;
2531 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2532 return -EFAULT;
2533 break;
2534 case TOSHIBA_ACPI_SCI:
2535 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2536 return -EFAULT;
2537 /* Ensure we are being called with a SCI_{GET, SET} register */
2538 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2539 return -EINVAL;
2540 if (!sci_open(toshiba_acpi))
2541 return -EIO;
2542 ret = toshiba_acpi_smm_bridge(®s);
2543 sci_close(toshiba_acpi);
2544 if (ret)
2545 return ret;
2546 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2547 return -EFAULT;
2548 break;
2549 default:
2550 return -EINVAL;
2551 }
2552
2553 return 0;
2554}
2555
2556static const struct file_operations toshiba_acpi_fops = {
2557 .owner = THIS_MODULE,
2558 .unlocked_ioctl = toshiba_acpi_ioctl,
2559 .llseek = noop_llseek,
2560};
2561
2562/*
2563 * WWAN RFKill handlers
2564 */
2565static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2566{
2567 struct toshiba_acpi_dev *dev = data;
2568 int ret;
2569
2570 ret = toshiba_wireless_status(dev);
2571 if (ret)
2572 return ret;
2573
2574 if (!dev->killswitch)
2575 return 0;
2576
2577 return toshiba_wwan_set(dev, !blocked);
2578}
2579
2580static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2581{
2582 struct toshiba_acpi_dev *dev = data;
2583
2584 if (toshiba_wireless_status(dev))
2585 return;
2586
2587 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2588}
2589
2590static const struct rfkill_ops wwan_rfk_ops = {
2591 .set_block = toshiba_acpi_wwan_set_block,
2592 .poll = toshiba_acpi_wwan_poll,
2593};
2594
2595static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2596{
2597 int ret = toshiba_wireless_status(dev);
2598
2599 if (ret)
2600 return ret;
2601
2602 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2603 &dev->acpi_dev->dev,
2604 RFKILL_TYPE_WWAN,
2605 &wwan_rfk_ops,
2606 dev);
2607 if (!dev->wwan_rfk) {
2608 pr_err("Unable to allocate WWAN rfkill device\n");
2609 return -ENOMEM;
2610 }
2611
2612 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2613
2614 ret = rfkill_register(dev->wwan_rfk);
2615 if (ret) {
2616 pr_err("Unable to register WWAN rfkill device\n");
2617 rfkill_destroy(dev->wwan_rfk);
2618 }
2619
2620 return ret;
2621}
2622
2623/*
2624 * Hotkeys
2625 */
2626static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2627{
2628 acpi_status status;
2629 u32 result;
2630
2631 status = acpi_evaluate_object(dev->acpi_dev->handle,
2632 "ENAB", NULL, NULL);
2633 if (ACPI_FAILURE(status))
2634 return -ENODEV;
2635
2636 /*
2637 * Enable the "Special Functions" mode only if they are
2638 * supported and if they are activated.
2639 */
2640 if (dev->kbd_function_keys_supported && dev->special_functions)
2641 result = hci_write(dev, HCI_HOTKEY_EVENT,
2642 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2643 else
2644 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2645
2646 if (result == TOS_FAILURE)
2647 return -EIO;
2648 else if (result == TOS_NOT_SUPPORTED)
2649 return -ENODEV;
2650
2651 return 0;
2652}
2653
2654static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2655 struct serio *port)
2656{
2657 if (str & I8042_STR_AUXDATA)
2658 return false;
2659
2660 if (unlikely(data == 0xe0))
2661 return false;
2662
2663 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2664 schedule_work(&toshiba_acpi->hotkey_work);
2665 return true;
2666 }
2667
2668 return false;
2669}
2670
2671static void toshiba_acpi_hotkey_work(struct work_struct *work)
2672{
2673 acpi_handle ec_handle = ec_get_handle();
2674 acpi_status status;
2675
2676 if (!ec_handle)
2677 return;
2678
2679 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2680 if (ACPI_FAILURE(status))
2681 pr_err("ACPI NTFY method execution failed\n");
2682}
2683
2684/*
2685 * Returns hotkey scancode, or < 0 on failure.
2686 */
2687static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2688{
2689 unsigned long long value;
2690 acpi_status status;
2691
2692 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2693 NULL, &value);
2694 if (ACPI_FAILURE(status)) {
2695 pr_err("ACPI INFO method execution failed\n");
2696 return -EIO;
2697 }
2698
2699 return value;
2700}
2701
2702static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2703 int scancode)
2704{
2705 if (scancode == 0x100)
2706 return;
2707
2708 /* Act on key press; ignore key release */
2709 if (scancode & 0x80)
2710 return;
2711
2712 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2713 pr_info("Unknown key %x\n", scancode);
2714}
2715
2716static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2717{
2718 if (dev->info_supported) {
2719 int scancode = toshiba_acpi_query_hotkey(dev);
2720
2721 if (scancode < 0) {
2722 pr_err("Failed to query hotkey event\n");
2723 } else if (scancode != 0) {
2724 toshiba_acpi_report_hotkey(dev, scancode);
2725 dev->key_event_valid = 1;
2726 dev->last_key_event = scancode;
2727 }
2728 } else if (dev->system_event_supported) {
2729 u32 result;
2730 u32 value;
2731 int retries = 3;
2732
2733 do {
2734 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2735 switch (result) {
2736 case TOS_SUCCESS:
2737 toshiba_acpi_report_hotkey(dev, (int)value);
2738 dev->key_event_valid = 1;
2739 dev->last_key_event = value;
2740 break;
2741 case TOS_NOT_SUPPORTED:
2742 /*
2743 * This is a workaround for an unresolved
2744 * issue on some machines where system events
2745 * sporadically become disabled.
2746 */
2747 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2748 if (result == TOS_SUCCESS)
2749 pr_notice("Re-enabled hotkeys\n");
2750 fallthrough;
2751 default:
2752 retries--;
2753 break;
2754 }
2755 } while (retries && result != TOS_FIFO_EMPTY);
2756 }
2757}
2758
2759static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2760{
2761 const struct key_entry *keymap = toshiba_acpi_keymap;
2762 acpi_handle ec_handle;
2763 int error;
2764
2765 if (disable_hotkeys) {
2766 pr_info("Hotkeys disabled by module parameter\n");
2767 return 0;
2768 }
2769
2770 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2771 pr_info("WMI event detected, hotkeys will not be monitored\n");
2772 return 0;
2773 }
2774
2775 error = toshiba_acpi_enable_hotkeys(dev);
2776 if (error)
2777 return error;
2778
2779 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2780 pr_notice("Unable to query Hotkey Event Type\n");
2781
2782 dev->hotkey_dev = input_allocate_device();
2783 if (!dev->hotkey_dev)
2784 return -ENOMEM;
2785
2786 dev->hotkey_dev->name = "Toshiba input device";
2787 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2788 dev->hotkey_dev->id.bustype = BUS_HOST;
2789
2790 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2791 !dev->kbd_function_keys_supported)
2792 keymap = toshiba_acpi_keymap;
2793 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2794 dev->kbd_function_keys_supported)
2795 keymap = toshiba_acpi_alt_keymap;
2796 else
2797 pr_info("Unknown event type received %x\n",
2798 dev->hotkey_event_type);
2799 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2800 if (error)
2801 goto err_free_dev;
2802
2803 /*
2804 * For some machines the SCI responsible for providing hotkey
2805 * notification doesn't fire. We can trigger the notification
2806 * whenever the Fn key is pressed using the NTFY method, if
2807 * supported, so if it's present set up an i8042 key filter
2808 * for this purpose.
2809 */
2810 ec_handle = ec_get_handle();
2811 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2812 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2813
2814 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2815 if (error) {
2816 pr_err("Error installing key filter\n");
2817 goto err_free_dev;
2818 }
2819
2820 dev->ntfy_supported = 1;
2821 }
2822
2823 /*
2824 * Determine hotkey query interface. Prefer using the INFO
2825 * method when it is available.
2826 */
2827 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2828 dev->info_supported = 1;
2829 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2830 dev->system_event_supported = 1;
2831
2832 if (!dev->info_supported && !dev->system_event_supported) {
2833 pr_warn("No hotkey query interface found\n");
2834 error = -EINVAL;
2835 goto err_remove_filter;
2836 }
2837
2838 error = input_register_device(dev->hotkey_dev);
2839 if (error) {
2840 pr_info("Unable to register input device\n");
2841 goto err_remove_filter;
2842 }
2843
2844 return 0;
2845
2846 err_remove_filter:
2847 if (dev->ntfy_supported)
2848 i8042_remove_filter(toshiba_acpi_i8042_filter);
2849 err_free_dev:
2850 input_free_device(dev->hotkey_dev);
2851 dev->hotkey_dev = NULL;
2852 return error;
2853}
2854
2855static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2856{
2857 struct backlight_properties props;
2858 int brightness;
2859 int ret;
2860
2861 /*
2862 * Some machines don't support the backlight methods at all, and
2863 * others support it read-only. Either of these is pretty useless,
2864 * so only register the backlight device if the backlight method
2865 * supports both reads and writes.
2866 */
2867 brightness = __get_lcd_brightness(dev);
2868 if (brightness < 0)
2869 return 0;
2870 /*
2871 * If transflective backlight is supported and the brightness is zero
2872 * (lowest brightness level), the set_lcd_brightness function will
2873 * activate the transflective backlight, making the LCD appear to be
2874 * turned off, simply increment the brightness level to avoid that.
2875 */
2876 if (dev->tr_backlight_supported && brightness == 0)
2877 brightness++;
2878 ret = set_lcd_brightness(dev, brightness);
2879 if (ret) {
2880 pr_debug("Backlight method is read-only, disabling backlight support\n");
2881 return 0;
2882 }
2883
2884 /*
2885 * Tell acpi-video-detect code to prefer vendor backlight on all
2886 * systems with transflective backlight and on dmi matched systems.
2887 */
2888 if (dev->tr_backlight_supported ||
2889 dmi_check_system(toshiba_vendor_backlight_dmi))
2890 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2891
2892 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2893 return 0;
2894
2895 memset(&props, 0, sizeof(props));
2896 props.type = BACKLIGHT_PLATFORM;
2897 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2898
2899 /* Adding an extra level and having 0 change to transflective mode */
2900 if (dev->tr_backlight_supported)
2901 props.max_brightness++;
2902
2903 dev->backlight_dev = backlight_device_register("toshiba",
2904 &dev->acpi_dev->dev,
2905 dev,
2906 &toshiba_backlight_data,
2907 &props);
2908 if (IS_ERR(dev->backlight_dev)) {
2909 ret = PTR_ERR(dev->backlight_dev);
2910 pr_err("Could not register toshiba backlight device\n");
2911 dev->backlight_dev = NULL;
2912 return ret;
2913 }
2914
2915 dev->backlight_dev->props.brightness = brightness;
2916 return 0;
2917}
2918
2919static void print_supported_features(struct toshiba_acpi_dev *dev)
2920{
2921 pr_info("Supported laptop features:");
2922
2923 if (dev->hotkey_dev)
2924 pr_cont(" hotkeys");
2925 if (dev->backlight_dev)
2926 pr_cont(" backlight");
2927 if (dev->video_supported)
2928 pr_cont(" video-out");
2929 if (dev->fan_supported)
2930 pr_cont(" fan");
2931 if (dev->tr_backlight_supported)
2932 pr_cont(" transflective-backlight");
2933 if (dev->illumination_supported)
2934 pr_cont(" illumination");
2935 if (dev->kbd_illum_supported)
2936 pr_cont(" keyboard-backlight");
2937 if (dev->touchpad_supported)
2938 pr_cont(" touchpad");
2939 if (dev->eco_supported)
2940 pr_cont(" eco-led");
2941 if (dev->accelerometer_supported)
2942 pr_cont(" accelerometer-axes");
2943 if (dev->usb_sleep_charge_supported)
2944 pr_cont(" usb-sleep-charge");
2945 if (dev->usb_rapid_charge_supported)
2946 pr_cont(" usb-rapid-charge");
2947 if (dev->usb_sleep_music_supported)
2948 pr_cont(" usb-sleep-music");
2949 if (dev->kbd_function_keys_supported)
2950 pr_cont(" special-function-keys");
2951 if (dev->panel_power_on_supported)
2952 pr_cont(" panel-power-on");
2953 if (dev->usb_three_supported)
2954 pr_cont(" usb3");
2955 if (dev->wwan_supported)
2956 pr_cont(" wwan");
2957 if (dev->cooling_method_supported)
2958 pr_cont(" cooling-method");
2959
2960 pr_cont("\n");
2961}
2962
2963static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2964{
2965 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2966
2967 misc_deregister(&dev->miscdev);
2968
2969 remove_toshiba_proc_entries(dev);
2970
2971 if (dev->accelerometer_supported && dev->indio_dev) {
2972 iio_device_unregister(dev->indio_dev);
2973 iio_device_free(dev->indio_dev);
2974 }
2975
2976 if (dev->sysfs_created)
2977 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
2978 &toshiba_attr_group);
2979
2980 if (dev->ntfy_supported) {
2981 i8042_remove_filter(toshiba_acpi_i8042_filter);
2982 cancel_work_sync(&dev->hotkey_work);
2983 }
2984
2985 if (dev->hotkey_dev)
2986 input_unregister_device(dev->hotkey_dev);
2987
2988 backlight_device_unregister(dev->backlight_dev);
2989
2990 led_classdev_unregister(&dev->led_dev);
2991 led_classdev_unregister(&dev->kbd_led);
2992 led_classdev_unregister(&dev->eco_led);
2993
2994 if (dev->wwan_rfk) {
2995 rfkill_unregister(dev->wwan_rfk);
2996 rfkill_destroy(dev->wwan_rfk);
2997 }
2998
2999 if (toshiba_acpi)
3000 toshiba_acpi = NULL;
3001
3002 kfree(dev);
3003
3004 return 0;
3005}
3006
3007static const char *find_hci_method(acpi_handle handle)
3008{
3009 if (acpi_has_method(handle, "GHCI"))
3010 return "GHCI";
3011
3012 if (acpi_has_method(handle, "SPFC"))
3013 return "SPFC";
3014
3015 return NULL;
3016}
3017
3018static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3019{
3020 struct toshiba_acpi_dev *dev;
3021 const char *hci_method;
3022 u32 dummy;
3023 int ret = 0;
3024
3025 if (toshiba_acpi)
3026 return -EBUSY;
3027
3028 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3029 TOSHIBA_ACPI_VERSION);
3030
3031 hci_method = find_hci_method(acpi_dev->handle);
3032 if (!hci_method) {
3033 pr_err("HCI interface not found\n");
3034 return -ENODEV;
3035 }
3036
3037 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3038 if (!dev)
3039 return -ENOMEM;
3040 dev->acpi_dev = acpi_dev;
3041 dev->method_hci = hci_method;
3042 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3043 dev->miscdev.name = "toshiba_acpi";
3044 dev->miscdev.fops = &toshiba_acpi_fops;
3045
3046 ret = misc_register(&dev->miscdev);
3047 if (ret) {
3048 pr_err("Failed to register miscdevice\n");
3049 kfree(dev);
3050 return ret;
3051 }
3052
3053 acpi_dev->driver_data = dev;
3054 dev_set_drvdata(&acpi_dev->dev, dev);
3055
3056 /* Query the BIOS for supported features */
3057
3058 /*
3059 * The "Special Functions" are always supported by the laptops
3060 * with the new keyboard layout, query for its presence to help
3061 * determine the keymap layout to use.
3062 */
3063 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3064 dev->kbd_function_keys_supported = !ret;
3065
3066 dev->hotkey_event_type = 0;
3067 if (toshiba_acpi_setup_keyboard(dev))
3068 pr_info("Unable to activate hotkeys\n");
3069
3070 /* Determine whether or not BIOS supports transflective backlight */
3071 ret = get_tr_backlight_status(dev, &dummy);
3072 dev->tr_backlight_supported = !ret;
3073
3074 ret = toshiba_acpi_setup_backlight(dev);
3075 if (ret)
3076 goto error;
3077
3078 toshiba_illumination_available(dev);
3079 if (dev->illumination_supported) {
3080 dev->led_dev.name = "toshiba::illumination";
3081 dev->led_dev.max_brightness = 1;
3082 dev->led_dev.brightness_set = toshiba_illumination_set;
3083 dev->led_dev.brightness_get = toshiba_illumination_get;
3084 led_classdev_register(&acpi_dev->dev, &dev->led_dev);
3085 }
3086
3087 toshiba_eco_mode_available(dev);
3088 if (dev->eco_supported) {
3089 dev->eco_led.name = "toshiba::eco_mode";
3090 dev->eco_led.max_brightness = 1;
3091 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3092 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3093 led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led);
3094 }
3095
3096 toshiba_kbd_illum_available(dev);
3097 /*
3098 * Only register the LED if KBD illumination is supported
3099 * and the keyboard backlight operation mode is set to FN-Z
3100 * or we detect a second gen keyboard backlight
3101 */
3102 if (dev->kbd_illum_supported &&
3103 (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3104 dev->kbd_led.name = "toshiba::kbd_backlight";
3105 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3106 dev->kbd_led.max_brightness = 1;
3107 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3108 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3109 led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led);
3110 }
3111
3112 ret = toshiba_touchpad_get(dev, &dummy);
3113 dev->touchpad_supported = !ret;
3114
3115 toshiba_accelerometer_available(dev);
3116 if (dev->accelerometer_supported) {
3117 dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev));
3118 if (!dev->indio_dev) {
3119 pr_err("Unable to allocate iio device\n");
3120 goto iio_error;
3121 }
3122
3123 pr_info("Registering Toshiba accelerometer iio device\n");
3124
3125 dev->indio_dev->info = &toshiba_iio_accel_info;
3126 dev->indio_dev->name = "Toshiba accelerometer";
3127 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3128 dev->indio_dev->channels = toshiba_iio_accel_channels;
3129 dev->indio_dev->num_channels =
3130 ARRAY_SIZE(toshiba_iio_accel_channels);
3131
3132 ret = iio_device_register(dev->indio_dev);
3133 if (ret < 0) {
3134 pr_err("Unable to register iio device\n");
3135 iio_device_free(dev->indio_dev);
3136 }
3137 }
3138iio_error:
3139
3140 toshiba_usb_sleep_charge_available(dev);
3141
3142 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3143 dev->usb_rapid_charge_supported = !ret;
3144
3145 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3146 dev->usb_sleep_music_supported = !ret;
3147
3148 ret = toshiba_panel_power_on_get(dev, &dummy);
3149 dev->panel_power_on_supported = !ret;
3150
3151 ret = toshiba_usb_three_get(dev, &dummy);
3152 dev->usb_three_supported = !ret;
3153
3154 ret = get_video_status(dev, &dummy);
3155 dev->video_supported = !ret;
3156
3157 ret = get_fan_status(dev, &dummy);
3158 dev->fan_supported = !ret;
3159
3160 toshiba_wwan_available(dev);
3161 if (dev->wwan_supported)
3162 toshiba_acpi_setup_wwan_rfkill(dev);
3163
3164 toshiba_cooling_method_available(dev);
3165
3166 print_supported_features(dev);
3167
3168 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3169 &toshiba_attr_group);
3170 if (ret) {
3171 dev->sysfs_created = 0;
3172 goto error;
3173 }
3174 dev->sysfs_created = !ret;
3175
3176 create_toshiba_proc_entries(dev);
3177
3178 toshiba_acpi = dev;
3179
3180 return 0;
3181
3182error:
3183 toshiba_acpi_remove(acpi_dev);
3184 return ret;
3185}
3186
3187static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3188{
3189 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3190
3191 switch (event) {
3192 case 0x80: /* Hotkeys and some system events */
3193 /*
3194 * Machines with this WMI GUID aren't supported due to bugs in
3195 * their AML.
3196 *
3197 * Return silently to avoid triggering a netlink event.
3198 */
3199 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3200 return;
3201 toshiba_acpi_process_hotkeys(dev);
3202 break;
3203 case 0x81: /* Dock events */
3204 case 0x82:
3205 case 0x83:
3206 pr_info("Dock event received %x\n", event);
3207 break;
3208 case 0x88: /* Thermal events */
3209 pr_info("Thermal event received\n");
3210 break;
3211 case 0x8f: /* LID closed */
3212 case 0x90: /* LID is closed and Dock has been ejected */
3213 break;
3214 case 0x8c: /* SATA power events */
3215 case 0x8b:
3216 pr_info("SATA power event received %x\n", event);
3217 break;
3218 case 0x92: /* Keyboard backlight mode changed */
3219 dev->kbd_event_generated = true;
3220 /* Update sysfs entries */
3221 if (sysfs_update_group(&acpi_dev->dev.kobj,
3222 &toshiba_attr_group))
3223 pr_err("Unable to update sysfs entries\n");
3224 /* Notify LED subsystem about keyboard backlight change */
3225 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3226 led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3227 (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3228 LED_FULL : LED_OFF);
3229 break;
3230 case 0x85: /* Unknown */
3231 case 0x8d: /* Unknown */
3232 case 0x8e: /* Unknown */
3233 case 0x94: /* Unknown */
3234 case 0x95: /* Unknown */
3235 default:
3236 pr_info("Unknown event received %x\n", event);
3237 break;
3238 }
3239
3240 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3241 dev_name(&acpi_dev->dev),
3242 event, (event == 0x80) ?
3243 dev->last_key_event : 0);
3244}
3245
3246#ifdef CONFIG_PM_SLEEP
3247static int toshiba_acpi_suspend(struct device *device)
3248{
3249 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3250
3251 if (dev->hotkey_dev) {
3252 u32 result;
3253
3254 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3255 if (result != TOS_SUCCESS)
3256 pr_info("Unable to disable hotkeys\n");
3257 }
3258
3259 return 0;
3260}
3261
3262static int toshiba_acpi_resume(struct device *device)
3263{
3264 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3265
3266 if (dev->hotkey_dev) {
3267 if (toshiba_acpi_enable_hotkeys(dev))
3268 pr_info("Unable to re-enable hotkeys\n");
3269 }
3270
3271 if (dev->wwan_rfk) {
3272 if (!toshiba_wireless_status(dev))
3273 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3274 }
3275
3276 return 0;
3277}
3278#endif
3279
3280static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3281 toshiba_acpi_suspend, toshiba_acpi_resume);
3282
3283static struct acpi_driver toshiba_acpi_driver = {
3284 .name = "Toshiba ACPI driver",
3285 .owner = THIS_MODULE,
3286 .ids = toshiba_device_ids,
3287 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3288 .ops = {
3289 .add = toshiba_acpi_add,
3290 .remove = toshiba_acpi_remove,
3291 .notify = toshiba_acpi_notify,
3292 },
3293 .drv.pm = &toshiba_acpi_pm,
3294};
3295
3296static int __init toshiba_acpi_init(void)
3297{
3298 int ret;
3299
3300 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3301 if (!toshiba_proc_dir) {
3302 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3303 return -ENODEV;
3304 }
3305
3306 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3307 if (ret) {
3308 pr_err("Failed to register ACPI driver: %d\n", ret);
3309 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3310 }
3311
3312 return ret;
3313}
3314
3315static void __exit toshiba_acpi_exit(void)
3316{
3317 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3318 if (toshiba_proc_dir)
3319 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3320}
3321
3322module_init(toshiba_acpi_init);
3323module_exit(toshiba_acpi_exit);