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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/dmi.h>
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/moduleparam.h>
30#include <linux/init.h>
31#include <linux/types.h>
32#include <linux/proc_fs.h>
33#include <linux/seq_file.h>
34#include <linux/backlight.h>
35#include <linux/input.h>
36#include <linux/input/sparse-keymap.h>
37#include <linux/leds.h>
38#include <linux/slab.h>
39#include <linux/workqueue.h>
40#include <linux/i8042.h>
41#include <linux/acpi.h>
42#include <linux/uaccess.h>
43#include <linux/miscdevice.h>
44#include <linux/rfkill.h>
45#include <linux/hwmon.h>
46#include <linux/iio/iio.h>
47#include <linux/toshiba.h>
48#include <acpi/battery.h>
49#include <acpi/video.h>
50
51MODULE_AUTHOR("John Belmonte");
52MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
53MODULE_LICENSE("GPL");
54
55static int turn_on_panel_on_resume = -1;
56module_param(turn_on_panel_on_resume, int, 0644);
57MODULE_PARM_DESC(turn_on_panel_on_resume,
58 "Call HCI_PANEL_POWER_ON on resume (-1 = auto, 0 = no, 1 = yes");
59
60#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
61
62/* Scan code for Fn key on TOS1900 models */
63#define TOS1900_FN_SCAN 0x6e
64
65/* Toshiba ACPI method paths */
66#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
67
68/*
69 * The Toshiba configuration interface is composed of the HCI and the SCI,
70 * which are defined as follows:
71 *
72 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
73 * be uniform across all their models. Ideally we would just call
74 * dedicated ACPI methods instead of using this primitive interface.
75 * However the ACPI methods seem to be incomplete in some areas (for
76 * example they allow setting, but not reading, the LCD brightness value),
77 * so this is still useful.
78 *
79 * SCI stands for "System Configuration Interface" which aim is to
80 * conceal differences in hardware between different models.
81 */
82
83#define TCI_WORDS 6
84
85/* Operations */
86#define HCI_SET 0xff00
87#define HCI_GET 0xfe00
88#define SCI_OPEN 0xf100
89#define SCI_CLOSE 0xf200
90#define SCI_GET 0xf300
91#define SCI_SET 0xf400
92
93/* Return codes */
94#define TOS_SUCCESS 0x0000
95#define TOS_SUCCESS2 0x0001
96#define TOS_OPEN_CLOSE_OK 0x0044
97#define TOS_FAILURE 0x1000
98#define TOS_NOT_SUPPORTED 0x8000
99#define TOS_ALREADY_OPEN 0x8100
100#define TOS_NOT_OPENED 0x8200
101#define TOS_INPUT_DATA_ERROR 0x8300
102#define TOS_WRITE_PROTECTED 0x8400
103#define TOS_NOT_PRESENT 0x8600
104#define TOS_FIFO_EMPTY 0x8c00
105#define TOS_DATA_NOT_AVAILABLE 0x8d20
106#define TOS_NOT_INITIALIZED 0x8d50
107#define TOS_NOT_INSTALLED 0x8e00
108
109/* Registers */
110#define HCI_PANEL_POWER_ON 0x0002
111#define HCI_FAN 0x0004
112#define HCI_TR_BACKLIGHT 0x0005
113#define HCI_SYSTEM_EVENT 0x0016
114#define HCI_VIDEO_OUT 0x001c
115#define HCI_HOTKEY_EVENT 0x001e
116#define HCI_LCD_BRIGHTNESS 0x002a
117#define HCI_FAN_RPM 0x0045
118#define HCI_WIRELESS 0x0056
119#define HCI_ACCELEROMETER 0x006d
120#define HCI_COOLING_METHOD 0x007f
121#define HCI_KBD_ILLUMINATION 0x0095
122#define HCI_ECO_MODE 0x0097
123#define HCI_ACCELEROMETER2 0x00a6
124#define HCI_BATTERY_CHARGE_MODE 0x00ba
125#define HCI_SYSTEM_INFO 0xc000
126#define SCI_PANEL_POWER_ON 0x010d
127#define SCI_ILLUMINATION 0x014e
128#define SCI_USB_SLEEP_CHARGE 0x0150
129#define SCI_KBD_ILLUM_STATUS 0x015c
130#define SCI_USB_SLEEP_MUSIC 0x015e
131#define SCI_USB_THREE 0x0169
132#define SCI_TOUCHPAD 0x050e
133#define SCI_KBD_FUNCTION_KEYS 0x0522
134
135/* Field definitions */
136#define HCI_ACCEL_MASK 0x7fff
137#define HCI_ACCEL_DIRECTION_MASK 0x8000
138#define HCI_HOTKEY_DISABLE 0x0b
139#define HCI_HOTKEY_ENABLE 0x09
140#define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
141#define HCI_LCD_BRIGHTNESS_BITS 3
142#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
143#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
144#define HCI_MISC_SHIFT 0x10
145#define HCI_SYSTEM_TYPE1 0x10
146#define HCI_SYSTEM_TYPE2 0x11
147#define HCI_VIDEO_OUT_LCD 0x1
148#define HCI_VIDEO_OUT_CRT 0x2
149#define HCI_VIDEO_OUT_TV 0x4
150#define SCI_KBD_MODE_MASK 0x1f
151#define SCI_KBD_MODE_FNZ 0x1
152#define SCI_KBD_MODE_AUTO 0x2
153#define SCI_KBD_MODE_ON 0x8
154#define SCI_KBD_MODE_OFF 0x10
155#define SCI_KBD_TIME_MAX 0x3c001a
156#define HCI_WIRELESS_STATUS 0x1
157#define HCI_WIRELESS_WWAN 0x3
158#define HCI_WIRELESS_WWAN_STATUS 0x2000
159#define HCI_WIRELESS_WWAN_POWER 0x4000
160#define SCI_USB_CHARGE_MODE_MASK 0xff
161#define SCI_USB_CHARGE_DISABLED 0x00
162#define SCI_USB_CHARGE_ALTERNATE 0x09
163#define SCI_USB_CHARGE_TYPICAL 0x11
164#define SCI_USB_CHARGE_AUTO 0x21
165#define SCI_USB_CHARGE_BAT_MASK 0x7
166#define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
167#define SCI_USB_CHARGE_BAT_LVL_ON 0x4
168#define SCI_USB_CHARGE_BAT_LVL 0x0200
169#define SCI_USB_CHARGE_RAPID_DSP 0x0300
170
171struct toshiba_acpi_dev {
172 struct acpi_device *acpi_dev;
173 const char *method_hci;
174 struct input_dev *hotkey_dev;
175 struct work_struct hotkey_work;
176 struct backlight_device *backlight_dev;
177 struct led_classdev led_dev;
178 struct led_classdev kbd_led;
179 struct led_classdev eco_led;
180 struct miscdevice miscdev;
181 struct rfkill *wwan_rfk;
182 struct iio_dev *indio_dev;
183#if IS_ENABLED(CONFIG_HWMON)
184 struct device *hwmon_device;
185#endif
186
187 int force_fan;
188 int last_key_event;
189 int key_event_valid;
190 int kbd_type;
191 int kbd_mode;
192 int kbd_time;
193 int usbsc_bat_level;
194 int usbsc_mode_base;
195 int hotkey_event_type;
196 int max_cooling_method;
197
198 unsigned int illumination_supported:1;
199 unsigned int video_supported:1;
200 unsigned int fan_supported:1;
201 unsigned int fan_rpm_supported:1;
202 unsigned int system_event_supported:1;
203 unsigned int ntfy_supported:1;
204 unsigned int info_supported:1;
205 unsigned int tr_backlight_supported:1;
206 unsigned int kbd_illum_supported:1;
207 unsigned int touchpad_supported:1;
208 unsigned int eco_supported:1;
209 unsigned int accelerometer_supported:1;
210 unsigned int usb_sleep_charge_supported:1;
211 unsigned int usb_rapid_charge_supported:1;
212 unsigned int usb_sleep_music_supported:1;
213 unsigned int kbd_function_keys_supported:1;
214 unsigned int panel_power_on_supported:1;
215 unsigned int usb_three_supported:1;
216 unsigned int wwan_supported:1;
217 unsigned int cooling_method_supported:1;
218 unsigned int battery_charge_mode_supported:1;
219 unsigned int sysfs_created:1;
220 unsigned int special_functions;
221
222 bool kbd_event_generated;
223 bool killswitch;
224};
225
226static struct toshiba_acpi_dev *toshiba_acpi;
227
228static bool disable_hotkeys;
229module_param(disable_hotkeys, bool, 0444);
230MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
231
232static const struct acpi_device_id toshiba_device_ids[] = {
233 {"TOS6200", 0},
234 {"TOS6207", 0},
235 {"TOS6208", 0},
236 {"TOS1900", 0},
237 {"", 0},
238};
239MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
240
241static const struct key_entry toshiba_acpi_keymap[] = {
242 { KE_KEY, 0x9e, { KEY_RFKILL } },
243 { KE_KEY, 0x101, { KEY_MUTE } },
244 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
245 { KE_KEY, 0x103, { KEY_ZOOMIN } },
246 { KE_KEY, 0x10f, { KEY_TAB } },
247 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
248 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
249 { KE_KEY, 0x13b, { KEY_COFFEE } },
250 { KE_KEY, 0x13c, { KEY_BATTERY } },
251 { KE_KEY, 0x13d, { KEY_SLEEP } },
252 { KE_KEY, 0x13e, { KEY_SUSPEND } },
253 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
254 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
255 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
256 { KE_KEY, 0x142, { KEY_WLAN } },
257 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
258 { KE_KEY, 0x17f, { KEY_FN } },
259 { KE_KEY, 0xb05, { KEY_PROG2 } },
260 { KE_KEY, 0xb06, { KEY_WWW } },
261 { KE_KEY, 0xb07, { KEY_MAIL } },
262 { KE_KEY, 0xb30, { KEY_STOP } },
263 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
264 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
265 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
266 { KE_KEY, 0xb5a, { KEY_MEDIA } },
267 { KE_IGNORE, 0x0e00, { KEY_RESERVED } }, /* Wake from sleep */
268 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
269 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
270 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
271 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
272 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
273 { KE_END, 0 },
274};
275
276static const struct key_entry toshiba_acpi_alt_keymap[] = {
277 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
278 { KE_KEY, 0x103, { KEY_ZOOMIN } },
279 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
280 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
281 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
282 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
283 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
284 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
285 { KE_KEY, 0x157, { KEY_MUTE } },
286 { KE_KEY, 0x158, { KEY_WLAN } },
287 { KE_END, 0 },
288};
289
290/*
291 * Utility
292 */
293
294static inline void _set_bit(u32 *word, u32 mask, int value)
295{
296 *word = (*word & ~mask) | (mask * value);
297}
298
299/*
300 * ACPI interface wrappers
301 */
302
303static int write_acpi_int(const char *methodName, int val)
304{
305 acpi_status status;
306
307 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
308 return (status == AE_OK) ? 0 : -EIO;
309}
310
311/*
312 * Perform a raw configuration call. Here we don't care about input or output
313 * buffer format.
314 */
315static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
316 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
317{
318 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
319 struct acpi_object_list params;
320 struct acpi_buffer results;
321 acpi_status status;
322 int i;
323
324 params.count = TCI_WORDS;
325 params.pointer = in_objs;
326 for (i = 0; i < TCI_WORDS; ++i) {
327 in_objs[i].type = ACPI_TYPE_INTEGER;
328 in_objs[i].integer.value = in[i];
329 }
330
331 results.length = sizeof(out_objs);
332 results.pointer = out_objs;
333
334 status = acpi_evaluate_object(dev->acpi_dev->handle,
335 (char *)dev->method_hci, ¶ms,
336 &results);
337 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
338 for (i = 0; i < out_objs->package.count; ++i)
339 out[i] = out_objs->package.elements[i].integer.value;
340 }
341
342 return status;
343}
344
345/*
346 * Common hci tasks
347 *
348 * In addition to the ACPI status, the HCI system returns a result which
349 * may be useful (such as "not supported").
350 */
351
352static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
353{
354 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
355 u32 out[TCI_WORDS];
356 acpi_status status = tci_raw(dev, in, out);
357
358 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
359}
360
361static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
362{
363 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
364 u32 out[TCI_WORDS];
365 acpi_status status = tci_raw(dev, in, out);
366
367 if (ACPI_FAILURE(status))
368 return TOS_FAILURE;
369
370 *out1 = out[2];
371
372 return out[0];
373}
374
375/*
376 * Common sci tasks
377 */
378
379static int sci_open(struct toshiba_acpi_dev *dev)
380{
381 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
382 u32 out[TCI_WORDS];
383 acpi_status status = tci_raw(dev, in, out);
384
385 if (ACPI_FAILURE(status)) {
386 pr_err("ACPI call to open SCI failed\n");
387 return 0;
388 }
389
390 if (out[0] == TOS_OPEN_CLOSE_OK) {
391 return 1;
392 } else if (out[0] == TOS_ALREADY_OPEN) {
393 pr_info("Toshiba SCI already opened\n");
394 return 1;
395 } else if (out[0] == TOS_NOT_SUPPORTED) {
396 /*
397 * Some BIOSes do not have the SCI open/close functions
398 * implemented and return 0x8000 (Not Supported), failing to
399 * register some supported features.
400 *
401 * Simply return 1 if we hit those affected laptops to make the
402 * supported features work.
403 *
404 * In the case that some laptops really do not support the SCI,
405 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
406 * and thus, not registering support for the queried feature.
407 */
408 return 1;
409 } else if (out[0] == TOS_NOT_PRESENT) {
410 pr_info("Toshiba SCI is not present\n");
411 }
412
413 return 0;
414}
415
416static void sci_close(struct toshiba_acpi_dev *dev)
417{
418 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
419 u32 out[TCI_WORDS];
420 acpi_status status = tci_raw(dev, in, out);
421
422 if (ACPI_FAILURE(status)) {
423 pr_err("ACPI call to close SCI failed\n");
424 return;
425 }
426
427 if (out[0] == TOS_OPEN_CLOSE_OK)
428 return;
429 else if (out[0] == TOS_NOT_OPENED)
430 pr_info("Toshiba SCI not opened\n");
431 else if (out[0] == TOS_NOT_PRESENT)
432 pr_info("Toshiba SCI is not present\n");
433}
434
435static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
436{
437 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
438 u32 out[TCI_WORDS];
439 acpi_status status = tci_raw(dev, in, out);
440
441 if (ACPI_FAILURE(status))
442 return TOS_FAILURE;
443
444 *out1 = out[2];
445
446 return out[0];
447}
448
449static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
450{
451 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
452 u32 out[TCI_WORDS];
453 acpi_status status = tci_raw(dev, in, out);
454
455 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
456}
457
458/* Illumination support */
459static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
460{
461 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
462 u32 out[TCI_WORDS];
463 acpi_status status;
464
465 dev->illumination_supported = 0;
466
467 if (!sci_open(dev))
468 return;
469
470 status = tci_raw(dev, in, out);
471 sci_close(dev);
472 if (ACPI_FAILURE(status)) {
473 pr_err("ACPI call to query Illumination support failed\n");
474 return;
475 }
476
477 if (out[0] != TOS_SUCCESS)
478 return;
479
480 dev->illumination_supported = 1;
481}
482
483static void toshiba_illumination_set(struct led_classdev *cdev,
484 enum led_brightness brightness)
485{
486 struct toshiba_acpi_dev *dev = container_of(cdev,
487 struct toshiba_acpi_dev, led_dev);
488 u32 result;
489 u32 state;
490
491 /* First request : initialize communication. */
492 if (!sci_open(dev))
493 return;
494
495 /* Switch the illumination on/off */
496 state = brightness ? 1 : 0;
497 result = sci_write(dev, SCI_ILLUMINATION, state);
498 sci_close(dev);
499 if (result == TOS_FAILURE)
500 pr_err("ACPI call for illumination failed\n");
501}
502
503static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
504{
505 struct toshiba_acpi_dev *dev = container_of(cdev,
506 struct toshiba_acpi_dev, led_dev);
507 u32 result;
508 u32 state;
509
510 /* First request : initialize communication. */
511 if (!sci_open(dev))
512 return LED_OFF;
513
514 /* Check the illumination */
515 result = sci_read(dev, SCI_ILLUMINATION, &state);
516 sci_close(dev);
517 if (result == TOS_FAILURE) {
518 pr_err("ACPI call for illumination failed\n");
519 return LED_OFF;
520 } else if (result != TOS_SUCCESS) {
521 return LED_OFF;
522 }
523
524 return state ? LED_FULL : LED_OFF;
525}
526
527/* KBD Illumination */
528static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
529{
530 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
531 u32 out[TCI_WORDS];
532 acpi_status status;
533
534 dev->kbd_illum_supported = 0;
535 dev->kbd_event_generated = false;
536
537 if (!sci_open(dev))
538 return;
539
540 status = tci_raw(dev, in, out);
541 sci_close(dev);
542 if (ACPI_FAILURE(status)) {
543 pr_err("ACPI call to query kbd illumination support failed\n");
544 return;
545 }
546
547 if (out[0] != TOS_SUCCESS)
548 return;
549
550 /*
551 * Check for keyboard backlight timeout max value,
552 * previous kbd backlight implementation set this to
553 * 0x3c0003, and now the new implementation set this
554 * to 0x3c001a, use this to distinguish between them.
555 */
556 if (out[3] == SCI_KBD_TIME_MAX)
557 dev->kbd_type = 2;
558 else
559 dev->kbd_type = 1;
560 /* Get the current keyboard backlight mode */
561 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
562 /* Get the current time (1-60 seconds) */
563 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
564 /* Flag as supported */
565 dev->kbd_illum_supported = 1;
566}
567
568static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
569{
570 u32 result;
571
572 if (!sci_open(dev))
573 return -EIO;
574
575 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
576 sci_close(dev);
577 if (result == TOS_FAILURE)
578 pr_err("ACPI call to set KBD backlight status failed\n");
579 else if (result == TOS_NOT_SUPPORTED)
580 return -ENODEV;
581
582 return result == TOS_SUCCESS ? 0 : -EIO;
583}
584
585static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
586{
587 u32 result;
588
589 if (!sci_open(dev))
590 return -EIO;
591
592 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
593 sci_close(dev);
594 if (result == TOS_FAILURE)
595 pr_err("ACPI call to get KBD backlight status failed\n");
596 else if (result == TOS_NOT_SUPPORTED)
597 return -ENODEV;
598
599 return result == TOS_SUCCESS ? 0 : -EIO;
600}
601
602static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
603{
604 struct toshiba_acpi_dev *dev = container_of(cdev,
605 struct toshiba_acpi_dev, kbd_led);
606 u32 result;
607 u32 state;
608
609 /* Check the keyboard backlight state */
610 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
611 if (result == TOS_FAILURE) {
612 pr_err("ACPI call to get the keyboard backlight failed\n");
613 return LED_OFF;
614 } else if (result != TOS_SUCCESS) {
615 return LED_OFF;
616 }
617
618 return state ? LED_FULL : LED_OFF;
619}
620
621static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
622 enum led_brightness brightness)
623{
624 struct toshiba_acpi_dev *dev = container_of(cdev,
625 struct toshiba_acpi_dev, kbd_led);
626 u32 result;
627 u32 state;
628
629 /* Set the keyboard backlight state */
630 state = brightness ? 1 : 0;
631 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
632 if (result == TOS_FAILURE)
633 pr_err("ACPI call to set KBD Illumination mode failed\n");
634}
635
636/* TouchPad support */
637static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
638{
639 u32 result;
640
641 if (!sci_open(dev))
642 return -EIO;
643
644 result = sci_write(dev, SCI_TOUCHPAD, state);
645 sci_close(dev);
646 if (result == TOS_FAILURE)
647 pr_err("ACPI call to set the touchpad failed\n");
648 else if (result == TOS_NOT_SUPPORTED)
649 return -ENODEV;
650
651 return result == TOS_SUCCESS ? 0 : -EIO;
652}
653
654static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
655{
656 u32 result;
657
658 if (!sci_open(dev))
659 return -EIO;
660
661 result = sci_read(dev, SCI_TOUCHPAD, state);
662 sci_close(dev);
663 if (result == TOS_FAILURE)
664 pr_err("ACPI call to query the touchpad failed\n");
665 else if (result == TOS_NOT_SUPPORTED)
666 return -ENODEV;
667
668 return result == TOS_SUCCESS ? 0 : -EIO;
669}
670
671/* Eco Mode support */
672static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
673{
674 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
675 u32 out[TCI_WORDS];
676 acpi_status status;
677
678 dev->eco_supported = 0;
679
680 status = tci_raw(dev, in, out);
681 if (ACPI_FAILURE(status)) {
682 pr_err("ACPI call to get ECO led failed\n");
683 return;
684 }
685
686 if (out[0] == TOS_INPUT_DATA_ERROR || out[0] == TOS_NOT_SUPPORTED) {
687 /*
688 * If we receive 0x8300 (Input Data Error), it means that the
689 * LED device is present, but that we just screwed the input
690 * parameters.
691 *
692 * On some laptops 0x8000 (Not supported) is also returned in
693 * this case, so we need to allow for that as well.
694 *
695 * Let's query the status of the LED to see if we really have a
696 * success response, indicating the actual presense of the LED,
697 * bail out otherwise.
698 */
699 in[3] = 1;
700 status = tci_raw(dev, in, out);
701 if (ACPI_FAILURE(status)) {
702 pr_err("ACPI call to get ECO led failed\n");
703 return;
704 }
705
706 if (out[0] != TOS_SUCCESS)
707 return;
708
709 dev->eco_supported = 1;
710 }
711}
712
713static enum led_brightness
714toshiba_eco_mode_get_status(struct led_classdev *cdev)
715{
716 struct toshiba_acpi_dev *dev = container_of(cdev,
717 struct toshiba_acpi_dev, eco_led);
718 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
719 u32 out[TCI_WORDS];
720 acpi_status status;
721
722 status = tci_raw(dev, in, out);
723 if (ACPI_FAILURE(status)) {
724 pr_err("ACPI call to get ECO led failed\n");
725 return LED_OFF;
726 }
727
728 if (out[0] != TOS_SUCCESS)
729 return LED_OFF;
730
731 return out[2] ? LED_FULL : LED_OFF;
732}
733
734static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
735 enum led_brightness brightness)
736{
737 struct toshiba_acpi_dev *dev = container_of(cdev,
738 struct toshiba_acpi_dev, eco_led);
739 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
740 u32 out[TCI_WORDS];
741 acpi_status status;
742
743 /* Switch the Eco Mode led on/off */
744 in[2] = (brightness) ? 1 : 0;
745 status = tci_raw(dev, in, out);
746 if (ACPI_FAILURE(status))
747 pr_err("ACPI call to set ECO led failed\n");
748}
749
750/* Accelerometer support */
751static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
752{
753 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
754 u32 out[TCI_WORDS];
755 acpi_status status;
756
757 dev->accelerometer_supported = 0;
758
759 /*
760 * Check if the accelerometer call exists,
761 * this call also serves as initialization
762 */
763 status = tci_raw(dev, in, out);
764 if (ACPI_FAILURE(status)) {
765 pr_err("ACPI call to query the accelerometer failed\n");
766 return;
767 }
768
769 if (out[0] != TOS_SUCCESS)
770 return;
771
772 dev->accelerometer_supported = 1;
773}
774
775static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
776 u32 *xy, u32 *z)
777{
778 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
779 u32 out[TCI_WORDS];
780 acpi_status status;
781
782 /* Check the Accelerometer status */
783 status = tci_raw(dev, in, out);
784 if (ACPI_FAILURE(status)) {
785 pr_err("ACPI call to query the accelerometer failed\n");
786 return -EIO;
787 }
788
789 if (out[0] == TOS_NOT_SUPPORTED)
790 return -ENODEV;
791
792 if (out[0] != TOS_SUCCESS)
793 return -EIO;
794
795 *xy = out[2];
796 *z = out[4];
797
798 return 0;
799}
800
801/* Sleep (Charge and Music) utilities support */
802static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
803{
804 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
805 u32 out[TCI_WORDS];
806 acpi_status status;
807
808 dev->usb_sleep_charge_supported = 0;
809
810 if (!sci_open(dev))
811 return;
812
813 status = tci_raw(dev, in, out);
814 if (ACPI_FAILURE(status)) {
815 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
816 sci_close(dev);
817 return;
818 }
819
820 if (out[0] != TOS_SUCCESS) {
821 sci_close(dev);
822 return;
823 }
824
825 dev->usbsc_mode_base = out[4];
826
827 in[5] = SCI_USB_CHARGE_BAT_LVL;
828 status = tci_raw(dev, in, out);
829 sci_close(dev);
830 if (ACPI_FAILURE(status)) {
831 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
832 return;
833 }
834
835 if (out[0] != TOS_SUCCESS)
836 return;
837
838 dev->usbsc_bat_level = out[2];
839 /* Flag as supported */
840 dev->usb_sleep_charge_supported = 1;
841}
842
843static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
844 u32 *mode)
845{
846 u32 result;
847
848 if (!sci_open(dev))
849 return -EIO;
850
851 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
852 sci_close(dev);
853 if (result == TOS_FAILURE)
854 pr_err("ACPI call to set USB S&C mode failed\n");
855 else if (result == TOS_NOT_SUPPORTED)
856 return -ENODEV;
857
858 return result == TOS_SUCCESS ? 0 : -EIO;
859}
860
861static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
862 u32 mode)
863{
864 u32 result;
865
866 if (!sci_open(dev))
867 return -EIO;
868
869 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
870 sci_close(dev);
871 if (result == TOS_FAILURE)
872 pr_err("ACPI call to set USB S&C mode failed\n");
873 else if (result == TOS_NOT_SUPPORTED)
874 return -ENODEV;
875
876 return result == TOS_SUCCESS ? 0 : -EIO;
877}
878
879static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
880 u32 *mode)
881{
882 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
883 u32 out[TCI_WORDS];
884 acpi_status status;
885
886 if (!sci_open(dev))
887 return -EIO;
888
889 in[5] = SCI_USB_CHARGE_BAT_LVL;
890 status = tci_raw(dev, in, out);
891 sci_close(dev);
892 if (ACPI_FAILURE(status)) {
893 pr_err("ACPI call to get USB S&C battery level failed\n");
894 return -EIO;
895 }
896
897 if (out[0] == TOS_NOT_SUPPORTED)
898 return -ENODEV;
899
900 if (out[0] != TOS_SUCCESS)
901 return -EIO;
902
903 *mode = out[2];
904
905 return 0;
906
907}
908
909static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
910 u32 mode)
911{
912 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
913 u32 out[TCI_WORDS];
914 acpi_status status;
915
916 if (!sci_open(dev))
917 return -EIO;
918
919 in[2] = mode;
920 in[5] = SCI_USB_CHARGE_BAT_LVL;
921 status = tci_raw(dev, in, out);
922 sci_close(dev);
923 if (ACPI_FAILURE(status)) {
924 pr_err("ACPI call to set USB S&C battery level failed\n");
925 return -EIO;
926 }
927
928 if (out[0] == TOS_NOT_SUPPORTED)
929 return -ENODEV;
930
931 return out[0] == TOS_SUCCESS ? 0 : -EIO;
932}
933
934static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
935 u32 *state)
936{
937 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
938 u32 out[TCI_WORDS];
939 acpi_status status;
940
941 if (!sci_open(dev))
942 return -EIO;
943
944 in[5] = SCI_USB_CHARGE_RAPID_DSP;
945 status = tci_raw(dev, in, out);
946 sci_close(dev);
947 if (ACPI_FAILURE(status)) {
948 pr_err("ACPI call to get USB Rapid Charge failed\n");
949 return -EIO;
950 }
951
952 if (out[0] == TOS_NOT_SUPPORTED)
953 return -ENODEV;
954
955 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
956 return -EIO;
957
958 *state = out[2];
959
960 return 0;
961}
962
963static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
964 u32 state)
965{
966 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
967 u32 out[TCI_WORDS];
968 acpi_status status;
969
970 if (!sci_open(dev))
971 return -EIO;
972
973 in[2] = state;
974 in[5] = SCI_USB_CHARGE_RAPID_DSP;
975 status = tci_raw(dev, in, out);
976 sci_close(dev);
977 if (ACPI_FAILURE(status)) {
978 pr_err("ACPI call to set USB Rapid Charge failed\n");
979 return -EIO;
980 }
981
982 if (out[0] == TOS_NOT_SUPPORTED)
983 return -ENODEV;
984
985 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
986}
987
988static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
989{
990 u32 result;
991
992 if (!sci_open(dev))
993 return -EIO;
994
995 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
996 sci_close(dev);
997 if (result == TOS_FAILURE)
998 pr_err("ACPI call to get Sleep and Music failed\n");
999 else if (result == TOS_NOT_SUPPORTED)
1000 return -ENODEV;
1001
1002 return result == TOS_SUCCESS ? 0 : -EIO;
1003}
1004
1005static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1006{
1007 u32 result;
1008
1009 if (!sci_open(dev))
1010 return -EIO;
1011
1012 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1013 sci_close(dev);
1014 if (result == TOS_FAILURE)
1015 pr_err("ACPI call to set Sleep and Music failed\n");
1016 else if (result == TOS_NOT_SUPPORTED)
1017 return -ENODEV;
1018
1019 return result == TOS_SUCCESS ? 0 : -EIO;
1020}
1021
1022/* Keyboard function keys */
1023static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1024{
1025 u32 result;
1026
1027 if (!sci_open(dev))
1028 return -EIO;
1029
1030 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1031 sci_close(dev);
1032 if (result == TOS_FAILURE)
1033 pr_err("ACPI call to get KBD function keys failed\n");
1034 else if (result == TOS_NOT_SUPPORTED)
1035 return -ENODEV;
1036
1037 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1038}
1039
1040static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1041{
1042 u32 result;
1043
1044 if (!sci_open(dev))
1045 return -EIO;
1046
1047 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1048 sci_close(dev);
1049 if (result == TOS_FAILURE)
1050 pr_err("ACPI call to set KBD function keys failed\n");
1051 else if (result == TOS_NOT_SUPPORTED)
1052 return -ENODEV;
1053
1054 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1055}
1056
1057/* Panel Power ON */
1058static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1059{
1060 u32 result;
1061
1062 if (!sci_open(dev))
1063 return -EIO;
1064
1065 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1066 sci_close(dev);
1067 if (result == TOS_FAILURE)
1068 pr_err("ACPI call to get Panel Power ON failed\n");
1069 else if (result == TOS_NOT_SUPPORTED)
1070 return -ENODEV;
1071
1072 return result == TOS_SUCCESS ? 0 : -EIO;
1073}
1074
1075static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1076{
1077 u32 result;
1078
1079 if (!sci_open(dev))
1080 return -EIO;
1081
1082 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1083 sci_close(dev);
1084 if (result == TOS_FAILURE)
1085 pr_err("ACPI call to set Panel Power ON failed\n");
1086 else if (result == TOS_NOT_SUPPORTED)
1087 return -ENODEV;
1088
1089 return result == TOS_SUCCESS ? 0 : -EIO;
1090}
1091
1092/* USB Three */
1093static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1094{
1095 u32 result;
1096
1097 if (!sci_open(dev))
1098 return -EIO;
1099
1100 result = sci_read(dev, SCI_USB_THREE, state);
1101 sci_close(dev);
1102 if (result == TOS_FAILURE)
1103 pr_err("ACPI call to get USB 3 failed\n");
1104 else if (result == TOS_NOT_SUPPORTED)
1105 return -ENODEV;
1106
1107 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1108}
1109
1110static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1111{
1112 u32 result;
1113
1114 if (!sci_open(dev))
1115 return -EIO;
1116
1117 result = sci_write(dev, SCI_USB_THREE, state);
1118 sci_close(dev);
1119 if (result == TOS_FAILURE)
1120 pr_err("ACPI call to set USB 3 failed\n");
1121 else if (result == TOS_NOT_SUPPORTED)
1122 return -ENODEV;
1123
1124 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1125}
1126
1127/* Hotkey Event type */
1128static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1129 u32 *type)
1130{
1131 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1132 u32 out[TCI_WORDS];
1133 acpi_status status;
1134
1135 status = tci_raw(dev, in, out);
1136 if (ACPI_FAILURE(status)) {
1137 pr_err("ACPI call to get System type failed\n");
1138 return -EIO;
1139 }
1140
1141 if (out[0] == TOS_NOT_SUPPORTED)
1142 return -ENODEV;
1143
1144 if (out[0] != TOS_SUCCESS)
1145 return -EIO;
1146
1147 *type = out[3];
1148
1149 return 0;
1150}
1151
1152/* Wireless status (RFKill, WLAN, BT, WWAN) */
1153static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1154{
1155 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1156 u32 out[TCI_WORDS];
1157 acpi_status status;
1158
1159 in[3] = HCI_WIRELESS_STATUS;
1160 status = tci_raw(dev, in, out);
1161
1162 if (ACPI_FAILURE(status)) {
1163 pr_err("ACPI call to get Wireless status failed\n");
1164 return -EIO;
1165 }
1166
1167 if (out[0] == TOS_NOT_SUPPORTED)
1168 return -ENODEV;
1169
1170 if (out[0] != TOS_SUCCESS)
1171 return -EIO;
1172
1173 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1174
1175 return 0;
1176}
1177
1178/* WWAN */
1179static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1180{
1181 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1182 u32 out[TCI_WORDS];
1183 acpi_status status;
1184
1185 dev->wwan_supported = 0;
1186
1187 /*
1188 * WWAN support can be queried by setting the in[3] value to
1189 * HCI_WIRELESS_WWAN (0x03).
1190 *
1191 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1192 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1193 *
1194 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1195 * or TOS_NOT_SUPPORTED (0x8000).
1196 */
1197 in[3] = HCI_WIRELESS_WWAN;
1198 status = tci_raw(dev, in, out);
1199 if (ACPI_FAILURE(status)) {
1200 pr_err("ACPI call to get WWAN status failed\n");
1201 return;
1202 }
1203
1204 if (out[0] != TOS_SUCCESS)
1205 return;
1206
1207 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1208}
1209
1210static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1211{
1212 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1213 u32 out[TCI_WORDS];
1214 acpi_status status;
1215
1216 in[3] = HCI_WIRELESS_WWAN_STATUS;
1217 status = tci_raw(dev, in, out);
1218 if (ACPI_FAILURE(status)) {
1219 pr_err("ACPI call to set WWAN status failed\n");
1220 return -EIO;
1221 }
1222
1223 if (out[0] == TOS_NOT_SUPPORTED)
1224 return -ENODEV;
1225
1226 if (out[0] != TOS_SUCCESS)
1227 return -EIO;
1228
1229 /*
1230 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1231 * (de)activate the device, but some others need the
1232 * HCI_WIRELESS_WWAN_POWER call as well.
1233 */
1234 in[3] = HCI_WIRELESS_WWAN_POWER;
1235 status = tci_raw(dev, in, out);
1236 if (ACPI_FAILURE(status)) {
1237 pr_err("ACPI call to set WWAN power failed\n");
1238 return -EIO;
1239 }
1240
1241 if (out[0] == TOS_NOT_SUPPORTED)
1242 return -ENODEV;
1243
1244 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1245}
1246
1247/* Cooling Method */
1248static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1249{
1250 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1251 u32 out[TCI_WORDS];
1252 acpi_status status;
1253
1254 dev->cooling_method_supported = 0;
1255 dev->max_cooling_method = 0;
1256
1257 status = tci_raw(dev, in, out);
1258 if (ACPI_FAILURE(status)) {
1259 pr_err("ACPI call to get Cooling Method failed\n");
1260 return;
1261 }
1262
1263 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1264 return;
1265
1266 dev->cooling_method_supported = 1;
1267 dev->max_cooling_method = out[3];
1268}
1269
1270static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1271{
1272 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1273
1274 if (result == TOS_FAILURE)
1275 pr_err("ACPI call to get Cooling Method failed\n");
1276
1277 if (result == TOS_NOT_SUPPORTED)
1278 return -ENODEV;
1279
1280 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1281}
1282
1283static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1284{
1285 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1286
1287 if (result == TOS_FAILURE)
1288 pr_err("ACPI call to set Cooling Method failed\n");
1289
1290 if (result == TOS_NOT_SUPPORTED)
1291 return -ENODEV;
1292
1293 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1294}
1295
1296/* Battery charge control */
1297static void toshiba_battery_charge_mode_available(struct toshiba_acpi_dev *dev)
1298{
1299 u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0 };
1300 u32 out[TCI_WORDS];
1301 acpi_status status;
1302
1303 dev->battery_charge_mode_supported = 0;
1304
1305 status = tci_raw(dev, in, out);
1306 if (ACPI_FAILURE(status)) {
1307 pr_err("ACPI call to get Battery Charge Mode failed\n");
1308 return;
1309 }
1310
1311 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1312 return;
1313
1314 dev->battery_charge_mode_supported = 1;
1315}
1316
1317static int toshiba_battery_charge_mode_get(struct toshiba_acpi_dev *dev, u32 *state)
1318{
1319 u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0x1 };
1320 u32 out[TCI_WORDS];
1321 int retries = 3;
1322
1323 do {
1324 acpi_status status = tci_raw(dev, in, out);
1325
1326 if (ACPI_FAILURE(status))
1327 pr_err("ACPI call to get Battery Charge Mode failed\n");
1328 switch (out[0]) {
1329 case TOS_SUCCESS:
1330 case TOS_SUCCESS2:
1331 *state = out[2];
1332 return 0;
1333 case TOS_NOT_SUPPORTED:
1334 return -ENODEV;
1335 case TOS_DATA_NOT_AVAILABLE:
1336 retries--;
1337 break;
1338 default:
1339 return -EIO;
1340 }
1341 } while (retries);
1342
1343 return -EIO;
1344}
1345
1346static int toshiba_battery_charge_mode_set(struct toshiba_acpi_dev *dev, u32 state)
1347{
1348 u32 result = hci_write(dev, HCI_BATTERY_CHARGE_MODE, state);
1349
1350 if (result == TOS_FAILURE)
1351 pr_err("ACPI call to set Battery Charge Mode failed\n");
1352
1353 if (result == TOS_NOT_SUPPORTED)
1354 return -ENODEV;
1355
1356 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1357}
1358
1359/* Transflective Backlight */
1360static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1361{
1362 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1363
1364 if (result == TOS_FAILURE)
1365 pr_err("ACPI call to get Transflective Backlight failed\n");
1366 else if (result == TOS_NOT_SUPPORTED)
1367 return -ENODEV;
1368
1369 return result == TOS_SUCCESS ? 0 : -EIO;
1370}
1371
1372static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1373{
1374 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1375
1376 if (result == TOS_FAILURE)
1377 pr_err("ACPI call to set Transflective Backlight failed\n");
1378 else if (result == TOS_NOT_SUPPORTED)
1379 return -ENODEV;
1380
1381 return result == TOS_SUCCESS ? 0 : -EIO;
1382}
1383
1384static struct proc_dir_entry *toshiba_proc_dir;
1385
1386/* LCD Brightness */
1387static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1388{
1389 int brightness = 0;
1390 u32 result;
1391 u32 value;
1392
1393 if (dev->tr_backlight_supported) {
1394 int ret = get_tr_backlight_status(dev, &value);
1395
1396 if (ret)
1397 return ret;
1398 if (value)
1399 return 0;
1400 brightness++;
1401 }
1402
1403 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1404 if (result == TOS_FAILURE)
1405 pr_err("ACPI call to get LCD Brightness failed\n");
1406 else if (result == TOS_NOT_SUPPORTED)
1407 return -ENODEV;
1408
1409 return result == TOS_SUCCESS ?
1410 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1411 -EIO;
1412}
1413
1414static int get_lcd_brightness(struct backlight_device *bd)
1415{
1416 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1417
1418 return __get_lcd_brightness(dev);
1419}
1420
1421static int lcd_proc_show(struct seq_file *m, void *v)
1422{
1423 struct toshiba_acpi_dev *dev = m->private;
1424 int levels;
1425 int value;
1426
1427 if (!dev->backlight_dev)
1428 return -ENODEV;
1429
1430 levels = dev->backlight_dev->props.max_brightness + 1;
1431 value = get_lcd_brightness(dev->backlight_dev);
1432 if (value < 0) {
1433 pr_err("Error reading LCD brightness\n");
1434 return value;
1435 }
1436
1437 seq_printf(m, "brightness: %d\n", value);
1438 seq_printf(m, "brightness_levels: %d\n", levels);
1439
1440 return 0;
1441}
1442
1443static int lcd_proc_open(struct inode *inode, struct file *file)
1444{
1445 return single_open(file, lcd_proc_show, pde_data(inode));
1446}
1447
1448static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1449{
1450 u32 result;
1451
1452 if (dev->tr_backlight_supported) {
1453 int ret = set_tr_backlight_status(dev, !value);
1454
1455 if (ret)
1456 return ret;
1457 if (value)
1458 value--;
1459 }
1460
1461 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1462 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1463 if (result == TOS_FAILURE)
1464 pr_err("ACPI call to set LCD Brightness failed\n");
1465 else if (result == TOS_NOT_SUPPORTED)
1466 return -ENODEV;
1467
1468 return result == TOS_SUCCESS ? 0 : -EIO;
1469}
1470
1471static int set_lcd_status(struct backlight_device *bd)
1472{
1473 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1474
1475 return set_lcd_brightness(dev, bd->props.brightness);
1476}
1477
1478static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1479 size_t count, loff_t *pos)
1480{
1481 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1482 char cmd[42];
1483 size_t len;
1484 int levels;
1485 int value;
1486
1487 len = min(count, sizeof(cmd) - 1);
1488 if (copy_from_user(cmd, buf, len))
1489 return -EFAULT;
1490 cmd[len] = '\0';
1491
1492 levels = dev->backlight_dev->props.max_brightness + 1;
1493 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1494 value < 0 && value > levels)
1495 return -EINVAL;
1496
1497 if (set_lcd_brightness(dev, value))
1498 return -EIO;
1499
1500 return count;
1501}
1502
1503static const struct proc_ops lcd_proc_ops = {
1504 .proc_open = lcd_proc_open,
1505 .proc_read = seq_read,
1506 .proc_lseek = seq_lseek,
1507 .proc_release = single_release,
1508 .proc_write = lcd_proc_write,
1509};
1510
1511/* Video-Out */
1512static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1513{
1514 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1515
1516 if (result == TOS_FAILURE)
1517 pr_err("ACPI call to get Video-Out failed\n");
1518 else if (result == TOS_NOT_SUPPORTED)
1519 return -ENODEV;
1520
1521 return result == TOS_SUCCESS ? 0 : -EIO;
1522}
1523
1524static int video_proc_show(struct seq_file *m, void *v)
1525{
1526 struct toshiba_acpi_dev *dev = m->private;
1527 int is_lcd, is_crt, is_tv;
1528 u32 value;
1529
1530 if (get_video_status(dev, &value))
1531 return -EIO;
1532
1533 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1534 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1535 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1536
1537 seq_printf(m, "lcd_out: %d\n", is_lcd);
1538 seq_printf(m, "crt_out: %d\n", is_crt);
1539 seq_printf(m, "tv_out: %d\n", is_tv);
1540
1541 return 0;
1542}
1543
1544static int video_proc_open(struct inode *inode, struct file *file)
1545{
1546 return single_open(file, video_proc_show, pde_data(inode));
1547}
1548
1549static ssize_t video_proc_write(struct file *file, const char __user *buf,
1550 size_t count, loff_t *pos)
1551{
1552 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1553 char *buffer;
1554 char *cmd;
1555 int lcd_out = -1, crt_out = -1, tv_out = -1;
1556 int remain = count;
1557 int value;
1558 int ret;
1559 u32 video_out;
1560
1561 cmd = memdup_user_nul(buf, count);
1562 if (IS_ERR(cmd))
1563 return PTR_ERR(cmd);
1564
1565 buffer = cmd;
1566
1567 /*
1568 * Scan expression. Multiple expressions may be delimited with ;
1569 * NOTE: To keep scanning simple, invalid fields are ignored.
1570 */
1571 while (remain) {
1572 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1573 lcd_out = value & 1;
1574 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1575 crt_out = value & 1;
1576 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1577 tv_out = value & 1;
1578 /* Advance to one character past the next ; */
1579 do {
1580 ++buffer;
1581 --remain;
1582 } while (remain && *(buffer - 1) != ';');
1583 }
1584
1585 kfree(cmd);
1586
1587 ret = get_video_status(dev, &video_out);
1588 if (!ret) {
1589 unsigned int new_video_out = video_out;
1590
1591 if (lcd_out != -1)
1592 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1593 if (crt_out != -1)
1594 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1595 if (tv_out != -1)
1596 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1597 /*
1598 * To avoid unnecessary video disruption, only write the new
1599 * video setting if something changed.
1600 */
1601 if (new_video_out != video_out)
1602 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1603 }
1604
1605 return ret ? -EIO : count;
1606}
1607
1608static const struct proc_ops video_proc_ops = {
1609 .proc_open = video_proc_open,
1610 .proc_read = seq_read,
1611 .proc_lseek = seq_lseek,
1612 .proc_release = single_release,
1613 .proc_write = video_proc_write,
1614};
1615
1616/* Fan status */
1617static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1618{
1619 u32 result = hci_read(dev, HCI_FAN, status);
1620
1621 if (result == TOS_FAILURE)
1622 pr_err("ACPI call to get Fan status failed\n");
1623 else if (result == TOS_NOT_SUPPORTED)
1624 return -ENODEV;
1625
1626 return result == TOS_SUCCESS ? 0 : -EIO;
1627}
1628
1629static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1630{
1631 u32 result = hci_write(dev, HCI_FAN, status);
1632
1633 if (result == TOS_FAILURE)
1634 pr_err("ACPI call to set Fan status failed\n");
1635 else if (result == TOS_NOT_SUPPORTED)
1636 return -ENODEV;
1637
1638 return result == TOS_SUCCESS ? 0 : -EIO;
1639}
1640
1641static int fan_proc_show(struct seq_file *m, void *v)
1642{
1643 struct toshiba_acpi_dev *dev = m->private;
1644 u32 value;
1645
1646 if (get_fan_status(dev, &value))
1647 return -EIO;
1648
1649 seq_printf(m, "running: %d\n", (value > 0));
1650 seq_printf(m, "force_on: %d\n", dev->force_fan);
1651
1652 return 0;
1653}
1654
1655static int fan_proc_open(struct inode *inode, struct file *file)
1656{
1657 return single_open(file, fan_proc_show, pde_data(inode));
1658}
1659
1660static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1661 size_t count, loff_t *pos)
1662{
1663 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1664 char cmd[42];
1665 size_t len;
1666 int value;
1667
1668 len = min(count, sizeof(cmd) - 1);
1669 if (copy_from_user(cmd, buf, len))
1670 return -EFAULT;
1671 cmd[len] = '\0';
1672
1673 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1674 value != 0 && value != 1)
1675 return -EINVAL;
1676
1677 if (set_fan_status(dev, value))
1678 return -EIO;
1679
1680 dev->force_fan = value;
1681
1682 return count;
1683}
1684
1685static const struct proc_ops fan_proc_ops = {
1686 .proc_open = fan_proc_open,
1687 .proc_read = seq_read,
1688 .proc_lseek = seq_lseek,
1689 .proc_release = single_release,
1690 .proc_write = fan_proc_write,
1691};
1692
1693/* Fan RPM */
1694static int get_fan_rpm(struct toshiba_acpi_dev *dev, u32 *rpm)
1695{
1696 u32 in[TCI_WORDS] = { HCI_GET, HCI_FAN_RPM, 0, 1, 0, 0 };
1697 u32 out[TCI_WORDS];
1698 acpi_status status = tci_raw(dev, in, out);
1699
1700 if (ACPI_FAILURE(status)) {
1701 pr_err("ACPI call to get Fan speed failed\n");
1702 return -EIO;
1703 }
1704
1705 if (out[0] == TOS_NOT_SUPPORTED)
1706 return -ENODEV;
1707
1708 if (out[0] == TOS_SUCCESS) {
1709 *rpm = out[2];
1710 return 0;
1711 }
1712
1713 return -EIO;
1714}
1715
1716static int keys_proc_show(struct seq_file *m, void *v)
1717{
1718 struct toshiba_acpi_dev *dev = m->private;
1719
1720 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1721 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1722
1723 return 0;
1724}
1725
1726static int keys_proc_open(struct inode *inode, struct file *file)
1727{
1728 return single_open(file, keys_proc_show, pde_data(inode));
1729}
1730
1731static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1732 size_t count, loff_t *pos)
1733{
1734 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1735 char cmd[42];
1736 size_t len;
1737 int value;
1738
1739 len = min(count, sizeof(cmd) - 1);
1740 if (copy_from_user(cmd, buf, len))
1741 return -EFAULT;
1742 cmd[len] = '\0';
1743
1744 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1745 dev->key_event_valid = 0;
1746 else
1747 return -EINVAL;
1748
1749 return count;
1750}
1751
1752static const struct proc_ops keys_proc_ops = {
1753 .proc_open = keys_proc_open,
1754 .proc_read = seq_read,
1755 .proc_lseek = seq_lseek,
1756 .proc_release = single_release,
1757 .proc_write = keys_proc_write,
1758};
1759
1760static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1761{
1762 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1763 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1764 return 0;
1765}
1766
1767/*
1768 * Proc and module init
1769 */
1770
1771#define PROC_TOSHIBA "toshiba"
1772
1773static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1774{
1775 if (dev->backlight_dev)
1776 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1777 &lcd_proc_ops, dev);
1778 if (dev->video_supported)
1779 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1780 &video_proc_ops, dev);
1781 if (dev->fan_supported)
1782 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1783 &fan_proc_ops, dev);
1784 if (dev->hotkey_dev)
1785 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1786 &keys_proc_ops, dev);
1787 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1788 version_proc_show, dev);
1789}
1790
1791static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1792{
1793 if (dev->backlight_dev)
1794 remove_proc_entry("lcd", toshiba_proc_dir);
1795 if (dev->video_supported)
1796 remove_proc_entry("video", toshiba_proc_dir);
1797 if (dev->fan_supported)
1798 remove_proc_entry("fan", toshiba_proc_dir);
1799 if (dev->hotkey_dev)
1800 remove_proc_entry("keys", toshiba_proc_dir);
1801 remove_proc_entry("version", toshiba_proc_dir);
1802}
1803
1804static const struct backlight_ops toshiba_backlight_data = {
1805 .options = BL_CORE_SUSPENDRESUME,
1806 .get_brightness = get_lcd_brightness,
1807 .update_status = set_lcd_status,
1808};
1809
1810/* Keyboard backlight work */
1811static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1812
1813static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1814
1815/*
1816 * Sysfs files
1817 */
1818static ssize_t version_show(struct device *dev,
1819 struct device_attribute *attr, char *buf)
1820{
1821 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1822}
1823static DEVICE_ATTR_RO(version);
1824
1825static ssize_t fan_store(struct device *dev,
1826 struct device_attribute *attr,
1827 const char *buf, size_t count)
1828{
1829 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1830 int state;
1831 int ret;
1832
1833 ret = kstrtoint(buf, 0, &state);
1834 if (ret)
1835 return ret;
1836
1837 if (state != 0 && state != 1)
1838 return -EINVAL;
1839
1840 ret = set_fan_status(toshiba, state);
1841 if (ret)
1842 return ret;
1843
1844 return count;
1845}
1846
1847static ssize_t fan_show(struct device *dev,
1848 struct device_attribute *attr, char *buf)
1849{
1850 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1851 u32 value;
1852 int ret;
1853
1854 ret = get_fan_status(toshiba, &value);
1855 if (ret)
1856 return ret;
1857
1858 return sprintf(buf, "%d\n", value);
1859}
1860static DEVICE_ATTR_RW(fan);
1861
1862static ssize_t kbd_backlight_mode_store(struct device *dev,
1863 struct device_attribute *attr,
1864 const char *buf, size_t count)
1865{
1866 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1867 int mode;
1868 int ret;
1869
1870
1871 ret = kstrtoint(buf, 0, &mode);
1872 if (ret)
1873 return ret;
1874
1875 /* Check for supported modes depending on keyboard backlight type */
1876 if (toshiba->kbd_type == 1) {
1877 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1878 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1879 return -EINVAL;
1880 } else if (toshiba->kbd_type == 2) {
1881 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1882 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1883 mode != SCI_KBD_MODE_OFF)
1884 return -EINVAL;
1885 }
1886
1887 /*
1888 * Set the Keyboard Backlight Mode where:
1889 * Auto - KBD backlight turns off automatically in given time
1890 * FN-Z - KBD backlight "toggles" when hotkey pressed
1891 * ON - KBD backlight is always on
1892 * OFF - KBD backlight is always off
1893 */
1894
1895 /* Only make a change if the actual mode has changed */
1896 if (toshiba->kbd_mode != mode) {
1897 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1898 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1899
1900 /* OR the "base time" to the actual method format */
1901 if (toshiba->kbd_type == 1) {
1902 /* Type 1 requires the current mode */
1903 time |= toshiba->kbd_mode;
1904 } else if (toshiba->kbd_type == 2) {
1905 /* Type 2 requires the desired mode */
1906 time |= mode;
1907 }
1908
1909 ret = toshiba_kbd_illum_status_set(toshiba, time);
1910 if (ret)
1911 return ret;
1912
1913 toshiba->kbd_mode = mode;
1914 toshiba_acpi->kbd_mode = mode;
1915
1916 /*
1917 * Some laptop models with the second generation backlit
1918 * keyboard (type 2) do not generate the keyboard backlight
1919 * changed event (0x92), and thus, the driver will never update
1920 * the sysfs entries.
1921 *
1922 * The event is generated right when changing the keyboard
1923 * backlight mode and the *notify function will set the
1924 * kbd_event_generated to true.
1925 *
1926 * In case the event is not generated, schedule the keyboard
1927 * backlight work to update the sysfs entries and emulate the
1928 * event via genetlink.
1929 */
1930 if (toshiba->kbd_type == 2 &&
1931 !toshiba->kbd_event_generated)
1932 schedule_work(&kbd_bl_work);
1933 }
1934
1935 return count;
1936}
1937
1938static ssize_t kbd_backlight_mode_show(struct device *dev,
1939 struct device_attribute *attr,
1940 char *buf)
1941{
1942 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1943 u32 time;
1944
1945 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1946 return -EIO;
1947
1948 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1949}
1950static DEVICE_ATTR_RW(kbd_backlight_mode);
1951
1952static ssize_t kbd_type_show(struct device *dev,
1953 struct device_attribute *attr, char *buf)
1954{
1955 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1956
1957 return sprintf(buf, "%d\n", toshiba->kbd_type);
1958}
1959static DEVICE_ATTR_RO(kbd_type);
1960
1961static ssize_t available_kbd_modes_show(struct device *dev,
1962 struct device_attribute *attr,
1963 char *buf)
1964{
1965 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1966
1967 if (toshiba->kbd_type == 1)
1968 return sprintf(buf, "0x%x 0x%x\n",
1969 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1970
1971 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1972 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1973}
1974static DEVICE_ATTR_RO(available_kbd_modes);
1975
1976static ssize_t kbd_backlight_timeout_store(struct device *dev,
1977 struct device_attribute *attr,
1978 const char *buf, size_t count)
1979{
1980 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1981 int time;
1982 int ret;
1983
1984 ret = kstrtoint(buf, 0, &time);
1985 if (ret)
1986 return ret;
1987
1988 /* Check for supported values depending on kbd_type */
1989 if (toshiba->kbd_type == 1) {
1990 if (time < 0 || time > 60)
1991 return -EINVAL;
1992 } else if (toshiba->kbd_type == 2) {
1993 if (time < 1 || time > 60)
1994 return -EINVAL;
1995 }
1996
1997 /* Set the Keyboard Backlight Timeout */
1998
1999 /* Only make a change if the actual timeout has changed */
2000 if (toshiba->kbd_time != time) {
2001 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
2002 time = time << HCI_MISC_SHIFT;
2003 /* OR the "base time" to the actual method format */
2004 if (toshiba->kbd_type == 1)
2005 time |= SCI_KBD_MODE_FNZ;
2006 else if (toshiba->kbd_type == 2)
2007 time |= SCI_KBD_MODE_AUTO;
2008
2009 ret = toshiba_kbd_illum_status_set(toshiba, time);
2010 if (ret)
2011 return ret;
2012
2013 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
2014 }
2015
2016 return count;
2017}
2018
2019static ssize_t kbd_backlight_timeout_show(struct device *dev,
2020 struct device_attribute *attr,
2021 char *buf)
2022{
2023 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2024 u32 time;
2025
2026 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
2027 return -EIO;
2028
2029 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
2030}
2031static DEVICE_ATTR_RW(kbd_backlight_timeout);
2032
2033static ssize_t touchpad_store(struct device *dev,
2034 struct device_attribute *attr,
2035 const char *buf, size_t count)
2036{
2037 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2038 int state;
2039 int ret;
2040
2041 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
2042 ret = kstrtoint(buf, 0, &state);
2043 if (ret)
2044 return ret;
2045 if (state != 0 && state != 1)
2046 return -EINVAL;
2047
2048 ret = toshiba_touchpad_set(toshiba, state);
2049 if (ret)
2050 return ret;
2051
2052 return count;
2053}
2054
2055static ssize_t touchpad_show(struct device *dev,
2056 struct device_attribute *attr, char *buf)
2057{
2058 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2059 u32 state;
2060 int ret;
2061
2062 ret = toshiba_touchpad_get(toshiba, &state);
2063 if (ret < 0)
2064 return ret;
2065
2066 return sprintf(buf, "%i\n", state);
2067}
2068static DEVICE_ATTR_RW(touchpad);
2069
2070static ssize_t usb_sleep_charge_show(struct device *dev,
2071 struct device_attribute *attr, char *buf)
2072{
2073 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2074 u32 mode;
2075 int ret;
2076
2077 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2078 if (ret < 0)
2079 return ret;
2080
2081 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2082}
2083
2084static ssize_t usb_sleep_charge_store(struct device *dev,
2085 struct device_attribute *attr,
2086 const char *buf, size_t count)
2087{
2088 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2089 int state;
2090 u32 mode;
2091 int ret;
2092
2093 ret = kstrtoint(buf, 0, &state);
2094 if (ret)
2095 return ret;
2096 /*
2097 * Check for supported values, where:
2098 * 0 - Disabled
2099 * 1 - Alternate (Non USB conformant devices that require more power)
2100 * 2 - Auto (USB conformant devices)
2101 * 3 - Typical
2102 */
2103 if (state != 0 && state != 1 && state != 2 && state != 3)
2104 return -EINVAL;
2105
2106 /* Set the USB charging mode to internal value */
2107 mode = toshiba->usbsc_mode_base;
2108 if (state == 0)
2109 mode |= SCI_USB_CHARGE_DISABLED;
2110 else if (state == 1)
2111 mode |= SCI_USB_CHARGE_ALTERNATE;
2112 else if (state == 2)
2113 mode |= SCI_USB_CHARGE_AUTO;
2114 else if (state == 3)
2115 mode |= SCI_USB_CHARGE_TYPICAL;
2116
2117 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2118 if (ret)
2119 return ret;
2120
2121 return count;
2122}
2123static DEVICE_ATTR_RW(usb_sleep_charge);
2124
2125static ssize_t sleep_functions_on_battery_show(struct device *dev,
2126 struct device_attribute *attr,
2127 char *buf)
2128{
2129 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2130 int bat_lvl, status;
2131 u32 state;
2132 int ret;
2133 int tmp;
2134
2135 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2136 if (ret < 0)
2137 return ret;
2138
2139 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2140 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2141 status = (tmp == 0x4) ? 1 : 0;
2142 /* Determine the battery level set */
2143 bat_lvl = state >> HCI_MISC_SHIFT;
2144
2145 return sprintf(buf, "%d %d\n", status, bat_lvl);
2146}
2147
2148static ssize_t sleep_functions_on_battery_store(struct device *dev,
2149 struct device_attribute *attr,
2150 const char *buf, size_t count)
2151{
2152 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2153 u32 status;
2154 int value;
2155 int ret;
2156 int tmp;
2157
2158 ret = kstrtoint(buf, 0, &value);
2159 if (ret)
2160 return ret;
2161
2162 /*
2163 * Set the status of the function:
2164 * 0 - Disabled
2165 * 1-100 - Enabled
2166 */
2167 if (value < 0 || value > 100)
2168 return -EINVAL;
2169
2170 if (value == 0) {
2171 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2172 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2173 } else {
2174 tmp = value << HCI_MISC_SHIFT;
2175 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2176 }
2177 ret = toshiba_sleep_functions_status_set(toshiba, status);
2178 if (ret < 0)
2179 return ret;
2180
2181 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2182
2183 return count;
2184}
2185static DEVICE_ATTR_RW(sleep_functions_on_battery);
2186
2187static ssize_t usb_rapid_charge_show(struct device *dev,
2188 struct device_attribute *attr, char *buf)
2189{
2190 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2191 u32 state;
2192 int ret;
2193
2194 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2195 if (ret < 0)
2196 return ret;
2197
2198 return sprintf(buf, "%d\n", state);
2199}
2200
2201static ssize_t usb_rapid_charge_store(struct device *dev,
2202 struct device_attribute *attr,
2203 const char *buf, size_t count)
2204{
2205 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2206 int state;
2207 int ret;
2208
2209 ret = kstrtoint(buf, 0, &state);
2210 if (ret)
2211 return ret;
2212 if (state != 0 && state != 1)
2213 return -EINVAL;
2214
2215 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2216 if (ret)
2217 return ret;
2218
2219 return count;
2220}
2221static DEVICE_ATTR_RW(usb_rapid_charge);
2222
2223static ssize_t usb_sleep_music_show(struct device *dev,
2224 struct device_attribute *attr, char *buf)
2225{
2226 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2227 u32 state;
2228 int ret;
2229
2230 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2231 if (ret < 0)
2232 return ret;
2233
2234 return sprintf(buf, "%d\n", state);
2235}
2236
2237static ssize_t usb_sleep_music_store(struct device *dev,
2238 struct device_attribute *attr,
2239 const char *buf, size_t count)
2240{
2241 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2242 int state;
2243 int ret;
2244
2245 ret = kstrtoint(buf, 0, &state);
2246 if (ret)
2247 return ret;
2248 if (state != 0 && state != 1)
2249 return -EINVAL;
2250
2251 ret = toshiba_usb_sleep_music_set(toshiba, state);
2252 if (ret)
2253 return ret;
2254
2255 return count;
2256}
2257static DEVICE_ATTR_RW(usb_sleep_music);
2258
2259static ssize_t kbd_function_keys_show(struct device *dev,
2260 struct device_attribute *attr, char *buf)
2261{
2262 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2263 int mode;
2264 int ret;
2265
2266 ret = toshiba_function_keys_get(toshiba, &mode);
2267 if (ret < 0)
2268 return ret;
2269
2270 return sprintf(buf, "%d\n", mode);
2271}
2272
2273static ssize_t kbd_function_keys_store(struct device *dev,
2274 struct device_attribute *attr,
2275 const char *buf, size_t count)
2276{
2277 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2278 int mode;
2279 int ret;
2280
2281 ret = kstrtoint(buf, 0, &mode);
2282 if (ret)
2283 return ret;
2284 /*
2285 * Check for the function keys mode where:
2286 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2287 * 1 - Special functions (Opposite of the above setting)
2288 */
2289 if (mode != 0 && mode != 1)
2290 return -EINVAL;
2291
2292 ret = toshiba_function_keys_set(toshiba, mode);
2293 if (ret)
2294 return ret;
2295
2296 pr_info("Reboot for changes to KBD Function Keys to take effect");
2297
2298 return count;
2299}
2300static DEVICE_ATTR_RW(kbd_function_keys);
2301
2302static ssize_t panel_power_on_show(struct device *dev,
2303 struct device_attribute *attr, char *buf)
2304{
2305 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2306 u32 state;
2307 int ret;
2308
2309 ret = toshiba_panel_power_on_get(toshiba, &state);
2310 if (ret < 0)
2311 return ret;
2312
2313 return sprintf(buf, "%d\n", state);
2314}
2315
2316static ssize_t panel_power_on_store(struct device *dev,
2317 struct device_attribute *attr,
2318 const char *buf, size_t count)
2319{
2320 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2321 int state;
2322 int ret;
2323
2324 ret = kstrtoint(buf, 0, &state);
2325 if (ret)
2326 return ret;
2327 if (state != 0 && state != 1)
2328 return -EINVAL;
2329
2330 ret = toshiba_panel_power_on_set(toshiba, state);
2331 if (ret)
2332 return ret;
2333
2334 pr_info("Reboot for changes to Panel Power ON to take effect");
2335
2336 return count;
2337}
2338static DEVICE_ATTR_RW(panel_power_on);
2339
2340static ssize_t usb_three_show(struct device *dev,
2341 struct device_attribute *attr, char *buf)
2342{
2343 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2344 u32 state;
2345 int ret;
2346
2347 ret = toshiba_usb_three_get(toshiba, &state);
2348 if (ret < 0)
2349 return ret;
2350
2351 return sprintf(buf, "%d\n", state);
2352}
2353
2354static ssize_t usb_three_store(struct device *dev,
2355 struct device_attribute *attr,
2356 const char *buf, size_t count)
2357{
2358 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2359 int state;
2360 int ret;
2361
2362 ret = kstrtoint(buf, 0, &state);
2363 if (ret)
2364 return ret;
2365 /*
2366 * Check for USB 3 mode where:
2367 * 0 - Disabled (Acts like a USB 2 port, saving power)
2368 * 1 - Enabled
2369 */
2370 if (state != 0 && state != 1)
2371 return -EINVAL;
2372
2373 ret = toshiba_usb_three_set(toshiba, state);
2374 if (ret)
2375 return ret;
2376
2377 pr_info("Reboot for changes to USB 3 to take effect");
2378
2379 return count;
2380}
2381static DEVICE_ATTR_RW(usb_three);
2382
2383static ssize_t cooling_method_show(struct device *dev,
2384 struct device_attribute *attr, char *buf)
2385{
2386 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2387 int state;
2388 int ret;
2389
2390 ret = toshiba_cooling_method_get(toshiba, &state);
2391 if (ret < 0)
2392 return ret;
2393
2394 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2395}
2396
2397static ssize_t cooling_method_store(struct device *dev,
2398 struct device_attribute *attr,
2399 const char *buf, size_t count)
2400{
2401 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2402 int state;
2403 int ret;
2404
2405 ret = kstrtoint(buf, 0, &state);
2406 if (ret)
2407 return ret;
2408
2409 /*
2410 * Check for supported values
2411 * Depending on the laptop model, some only support these two:
2412 * 0 - Maximum Performance
2413 * 1 - Battery Optimized
2414 *
2415 * While some others support all three methods:
2416 * 0 - Maximum Performance
2417 * 1 - Performance
2418 * 2 - Battery Optimized
2419 */
2420 if (state < 0 || state > toshiba->max_cooling_method)
2421 return -EINVAL;
2422
2423 ret = toshiba_cooling_method_set(toshiba, state);
2424 if (ret)
2425 return ret;
2426
2427 return count;
2428}
2429static DEVICE_ATTR_RW(cooling_method);
2430
2431static struct attribute *toshiba_attributes[] = {
2432 &dev_attr_version.attr,
2433 &dev_attr_fan.attr,
2434 &dev_attr_kbd_backlight_mode.attr,
2435 &dev_attr_kbd_type.attr,
2436 &dev_attr_available_kbd_modes.attr,
2437 &dev_attr_kbd_backlight_timeout.attr,
2438 &dev_attr_touchpad.attr,
2439 &dev_attr_usb_sleep_charge.attr,
2440 &dev_attr_sleep_functions_on_battery.attr,
2441 &dev_attr_usb_rapid_charge.attr,
2442 &dev_attr_usb_sleep_music.attr,
2443 &dev_attr_kbd_function_keys.attr,
2444 &dev_attr_panel_power_on.attr,
2445 &dev_attr_usb_three.attr,
2446 &dev_attr_cooling_method.attr,
2447 NULL,
2448};
2449
2450static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2451 struct attribute *attr, int idx)
2452{
2453 struct device *dev = kobj_to_dev(kobj);
2454 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2455 bool exists = true;
2456
2457 if (attr == &dev_attr_fan.attr)
2458 exists = (drv->fan_supported) ? true : false;
2459 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2460 exists = (drv->kbd_illum_supported) ? true : false;
2461 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2462 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2463 else if (attr == &dev_attr_touchpad.attr)
2464 exists = (drv->touchpad_supported) ? true : false;
2465 else if (attr == &dev_attr_usb_sleep_charge.attr)
2466 exists = (drv->usb_sleep_charge_supported) ? true : false;
2467 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2468 exists = (drv->usb_sleep_charge_supported) ? true : false;
2469 else if (attr == &dev_attr_usb_rapid_charge.attr)
2470 exists = (drv->usb_rapid_charge_supported) ? true : false;
2471 else if (attr == &dev_attr_usb_sleep_music.attr)
2472 exists = (drv->usb_sleep_music_supported) ? true : false;
2473 else if (attr == &dev_attr_kbd_function_keys.attr)
2474 exists = (drv->kbd_function_keys_supported) ? true : false;
2475 else if (attr == &dev_attr_panel_power_on.attr)
2476 exists = (drv->panel_power_on_supported) ? true : false;
2477 else if (attr == &dev_attr_usb_three.attr)
2478 exists = (drv->usb_three_supported) ? true : false;
2479 else if (attr == &dev_attr_cooling_method.attr)
2480 exists = (drv->cooling_method_supported) ? true : false;
2481
2482 return exists ? attr->mode : 0;
2483}
2484
2485static const struct attribute_group toshiba_attr_group = {
2486 .is_visible = toshiba_sysfs_is_visible,
2487 .attrs = toshiba_attributes,
2488};
2489
2490static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2491{
2492 /* Update the sysfs entries */
2493 if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2494 &toshiba_attr_group))
2495 pr_err("Unable to update sysfs entries\n");
2496
2497 /* Notify LED subsystem about keyboard backlight change */
2498 if (toshiba_acpi->kbd_type == 2 &&
2499 toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2500 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2501 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2502 LED_FULL : LED_OFF);
2503
2504 /* Emulate the keyboard backlight event */
2505 acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2506 dev_name(&toshiba_acpi->acpi_dev->dev),
2507 0x92, 0);
2508}
2509
2510/*
2511 * IIO device
2512 */
2513
2514enum toshiba_iio_accel_chan {
2515 AXIS_X,
2516 AXIS_Y,
2517 AXIS_Z
2518};
2519
2520static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2521{
2522 u32 xyval, zval;
2523 int ret;
2524
2525 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2526 if (ret < 0)
2527 return ret;
2528
2529 switch (chan) {
2530 case AXIS_X:
2531 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2532 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2533 case AXIS_Y:
2534 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2535 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2536 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2537 case AXIS_Z:
2538 return zval & HCI_ACCEL_DIRECTION_MASK ?
2539 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2540 }
2541
2542 return ret;
2543}
2544
2545static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2546 struct iio_chan_spec const *chan,
2547 int *val, int *val2, long mask)
2548{
2549 int ret;
2550
2551 switch (mask) {
2552 case IIO_CHAN_INFO_RAW:
2553 ret = toshiba_iio_accel_get_axis(chan->channel);
2554 if (ret == -EIO || ret == -ENODEV)
2555 return ret;
2556
2557 *val = ret;
2558
2559 return IIO_VAL_INT;
2560 }
2561
2562 return -EINVAL;
2563}
2564
2565#define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2566 .type = IIO_ACCEL, \
2567 .modified = 1, \
2568 .channel = chan, \
2569 .channel2 = IIO_MOD_##axis, \
2570 .output = 1, \
2571 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2572}
2573
2574static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2575 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2576 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2577 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2578};
2579
2580static const struct iio_info toshiba_iio_accel_info = {
2581 .read_raw = &toshiba_iio_accel_read_raw,
2582};
2583
2584/*
2585 * Misc device
2586 */
2587static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2588{
2589 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2590 regs->edx, regs->esi, regs->edi };
2591 u32 out[TCI_WORDS];
2592 acpi_status status;
2593
2594 status = tci_raw(toshiba_acpi, in, out);
2595 if (ACPI_FAILURE(status)) {
2596 pr_err("ACPI call to query SMM registers failed\n");
2597 return -EIO;
2598 }
2599
2600 /* Fillout the SMM struct with the TCI call results */
2601 regs->eax = out[0];
2602 regs->ebx = out[1];
2603 regs->ecx = out[2];
2604 regs->edx = out[3];
2605 regs->esi = out[4];
2606 regs->edi = out[5];
2607
2608 return 0;
2609}
2610
2611static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2612 unsigned long arg)
2613{
2614 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2615 SMMRegisters regs;
2616 int ret;
2617
2618 if (!argp)
2619 return -EINVAL;
2620
2621 switch (cmd) {
2622 case TOSH_SMM:
2623 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2624 return -EFAULT;
2625 ret = toshiba_acpi_smm_bridge(®s);
2626 if (ret)
2627 return ret;
2628 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2629 return -EFAULT;
2630 break;
2631 case TOSHIBA_ACPI_SCI:
2632 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2633 return -EFAULT;
2634 /* Ensure we are being called with a SCI_{GET, SET} register */
2635 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2636 return -EINVAL;
2637 if (!sci_open(toshiba_acpi))
2638 return -EIO;
2639 ret = toshiba_acpi_smm_bridge(®s);
2640 sci_close(toshiba_acpi);
2641 if (ret)
2642 return ret;
2643 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2644 return -EFAULT;
2645 break;
2646 default:
2647 return -EINVAL;
2648 }
2649
2650 return 0;
2651}
2652
2653static const struct file_operations toshiba_acpi_fops = {
2654 .owner = THIS_MODULE,
2655 .unlocked_ioctl = toshiba_acpi_ioctl,
2656 .llseek = noop_llseek,
2657};
2658
2659/*
2660 * WWAN RFKill handlers
2661 */
2662static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2663{
2664 struct toshiba_acpi_dev *dev = data;
2665 int ret;
2666
2667 ret = toshiba_wireless_status(dev);
2668 if (ret)
2669 return ret;
2670
2671 if (!dev->killswitch)
2672 return 0;
2673
2674 return toshiba_wwan_set(dev, !blocked);
2675}
2676
2677static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2678{
2679 struct toshiba_acpi_dev *dev = data;
2680
2681 if (toshiba_wireless_status(dev))
2682 return;
2683
2684 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2685}
2686
2687static const struct rfkill_ops wwan_rfk_ops = {
2688 .set_block = toshiba_acpi_wwan_set_block,
2689 .poll = toshiba_acpi_wwan_poll,
2690};
2691
2692static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2693{
2694 int ret = toshiba_wireless_status(dev);
2695
2696 if (ret)
2697 return ret;
2698
2699 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2700 &dev->acpi_dev->dev,
2701 RFKILL_TYPE_WWAN,
2702 &wwan_rfk_ops,
2703 dev);
2704 if (!dev->wwan_rfk) {
2705 pr_err("Unable to allocate WWAN rfkill device\n");
2706 return -ENOMEM;
2707 }
2708
2709 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2710
2711 ret = rfkill_register(dev->wwan_rfk);
2712 if (ret) {
2713 pr_err("Unable to register WWAN rfkill device\n");
2714 rfkill_destroy(dev->wwan_rfk);
2715 }
2716
2717 return ret;
2718}
2719
2720/*
2721 * Hotkeys
2722 */
2723static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2724{
2725 acpi_status status;
2726 u32 result;
2727
2728 status = acpi_evaluate_object(dev->acpi_dev->handle,
2729 "ENAB", NULL, NULL);
2730 if (ACPI_FAILURE(status))
2731 return -ENODEV;
2732
2733 /*
2734 * Enable the "Special Functions" mode only if they are
2735 * supported and if they are activated.
2736 */
2737 if (dev->kbd_function_keys_supported && dev->special_functions)
2738 result = hci_write(dev, HCI_HOTKEY_EVENT,
2739 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2740 else
2741 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2742
2743 if (result == TOS_FAILURE)
2744 return -EIO;
2745 else if (result == TOS_NOT_SUPPORTED)
2746 return -ENODEV;
2747
2748 return 0;
2749}
2750
2751static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2752 struct serio *port)
2753{
2754 if (str & I8042_STR_AUXDATA)
2755 return false;
2756
2757 if (unlikely(data == 0xe0))
2758 return false;
2759
2760 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2761 schedule_work(&toshiba_acpi->hotkey_work);
2762 return true;
2763 }
2764
2765 return false;
2766}
2767
2768static void toshiba_acpi_hotkey_work(struct work_struct *work)
2769{
2770 acpi_handle ec_handle = ec_get_handle();
2771 acpi_status status;
2772
2773 if (!ec_handle)
2774 return;
2775
2776 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2777 if (ACPI_FAILURE(status))
2778 pr_err("ACPI NTFY method execution failed\n");
2779}
2780
2781/*
2782 * Returns hotkey scancode, or < 0 on failure.
2783 */
2784static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2785{
2786 unsigned long long value;
2787 acpi_status status;
2788
2789 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2790 NULL, &value);
2791 if (ACPI_FAILURE(status)) {
2792 pr_err("ACPI INFO method execution failed\n");
2793 return -EIO;
2794 }
2795
2796 return value;
2797}
2798
2799static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2800 int scancode)
2801{
2802 if (scancode == 0x100)
2803 return;
2804
2805 /* Act on key press; ignore key release */
2806 if (scancode & 0x80)
2807 return;
2808
2809 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2810 pr_info("Unknown key %x\n", scancode);
2811}
2812
2813static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2814{
2815 if (dev->info_supported) {
2816 int scancode = toshiba_acpi_query_hotkey(dev);
2817
2818 if (scancode < 0) {
2819 pr_err("Failed to query hotkey event\n");
2820 } else if (scancode != 0) {
2821 toshiba_acpi_report_hotkey(dev, scancode);
2822 dev->key_event_valid = 1;
2823 dev->last_key_event = scancode;
2824 }
2825 } else if (dev->system_event_supported) {
2826 u32 result;
2827 u32 value;
2828 int retries = 3;
2829
2830 do {
2831 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2832 switch (result) {
2833 case TOS_SUCCESS:
2834 toshiba_acpi_report_hotkey(dev, (int)value);
2835 dev->key_event_valid = 1;
2836 dev->last_key_event = value;
2837 break;
2838 case TOS_NOT_SUPPORTED:
2839 /*
2840 * This is a workaround for an unresolved
2841 * issue on some machines where system events
2842 * sporadically become disabled.
2843 */
2844 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2845 if (result == TOS_SUCCESS)
2846 pr_notice("Re-enabled hotkeys\n");
2847 fallthrough;
2848 default:
2849 retries--;
2850 break;
2851 }
2852 } while (retries && result != TOS_FIFO_EMPTY);
2853 }
2854}
2855
2856static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2857{
2858 const struct key_entry *keymap = toshiba_acpi_keymap;
2859 acpi_handle ec_handle;
2860 int error;
2861
2862 if (disable_hotkeys) {
2863 pr_info("Hotkeys disabled by module parameter\n");
2864 return 0;
2865 }
2866
2867 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2868 pr_info("WMI event detected, hotkeys will not be monitored\n");
2869 return 0;
2870 }
2871
2872 error = toshiba_acpi_enable_hotkeys(dev);
2873 if (error)
2874 return error;
2875
2876 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2877 pr_notice("Unable to query Hotkey Event Type\n");
2878
2879 dev->hotkey_dev = input_allocate_device();
2880 if (!dev->hotkey_dev)
2881 return -ENOMEM;
2882
2883 dev->hotkey_dev->name = "Toshiba input device";
2884 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2885 dev->hotkey_dev->id.bustype = BUS_HOST;
2886 dev->hotkey_dev->dev.parent = &dev->acpi_dev->dev;
2887
2888 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2889 !dev->kbd_function_keys_supported)
2890 keymap = toshiba_acpi_keymap;
2891 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2892 dev->kbd_function_keys_supported)
2893 keymap = toshiba_acpi_alt_keymap;
2894 else
2895 pr_info("Unknown event type received %x\n",
2896 dev->hotkey_event_type);
2897 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2898 if (error)
2899 goto err_free_dev;
2900
2901 /*
2902 * For some machines the SCI responsible for providing hotkey
2903 * notification doesn't fire. We can trigger the notification
2904 * whenever the Fn key is pressed using the NTFY method, if
2905 * supported, so if it's present set up an i8042 key filter
2906 * for this purpose.
2907 */
2908 ec_handle = ec_get_handle();
2909 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2910 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2911
2912 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2913 if (error) {
2914 pr_err("Error installing key filter\n");
2915 goto err_free_dev;
2916 }
2917
2918 dev->ntfy_supported = 1;
2919 }
2920
2921 /*
2922 * Determine hotkey query interface. Prefer using the INFO
2923 * method when it is available.
2924 */
2925 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2926 dev->info_supported = 1;
2927 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2928 dev->system_event_supported = 1;
2929
2930 if (!dev->info_supported && !dev->system_event_supported) {
2931 pr_warn("No hotkey query interface found\n");
2932 error = -EINVAL;
2933 goto err_remove_filter;
2934 }
2935
2936 error = input_register_device(dev->hotkey_dev);
2937 if (error) {
2938 pr_info("Unable to register input device\n");
2939 goto err_remove_filter;
2940 }
2941
2942 return 0;
2943
2944 err_remove_filter:
2945 if (dev->ntfy_supported)
2946 i8042_remove_filter(toshiba_acpi_i8042_filter);
2947 err_free_dev:
2948 input_free_device(dev->hotkey_dev);
2949 dev->hotkey_dev = NULL;
2950 return error;
2951}
2952
2953static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2954{
2955 struct backlight_properties props;
2956 int brightness;
2957 int ret;
2958
2959 /*
2960 * Some machines don't support the backlight methods at all, and
2961 * others support it read-only. Either of these is pretty useless,
2962 * so only register the backlight device if the backlight method
2963 * supports both reads and writes.
2964 */
2965 brightness = __get_lcd_brightness(dev);
2966 if (brightness < 0)
2967 return 0;
2968 /*
2969 * If transflective backlight is supported and the brightness is zero
2970 * (lowest brightness level), the set_lcd_brightness function will
2971 * activate the transflective backlight, making the LCD appear to be
2972 * turned off, simply increment the brightness level to avoid that.
2973 */
2974 if (dev->tr_backlight_supported && brightness == 0)
2975 brightness++;
2976 ret = set_lcd_brightness(dev, brightness);
2977 if (ret) {
2978 pr_debug("Backlight method is read-only, disabling backlight support\n");
2979 return 0;
2980 }
2981
2982 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2983 return 0;
2984
2985 memset(&props, 0, sizeof(props));
2986 props.type = BACKLIGHT_PLATFORM;
2987 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2988
2989 /* Adding an extra level and having 0 change to transflective mode */
2990 if (dev->tr_backlight_supported)
2991 props.max_brightness++;
2992
2993 dev->backlight_dev = backlight_device_register("toshiba",
2994 &dev->acpi_dev->dev,
2995 dev,
2996 &toshiba_backlight_data,
2997 &props);
2998 if (IS_ERR(dev->backlight_dev)) {
2999 ret = PTR_ERR(dev->backlight_dev);
3000 pr_err("Could not register toshiba backlight device\n");
3001 dev->backlight_dev = NULL;
3002 return ret;
3003 }
3004
3005 dev->backlight_dev->props.brightness = brightness;
3006 return 0;
3007}
3008
3009/* HWMON support for fan */
3010#if IS_ENABLED(CONFIG_HWMON)
3011static umode_t toshiba_acpi_hwmon_is_visible(const void *drvdata,
3012 enum hwmon_sensor_types type,
3013 u32 attr, int channel)
3014{
3015 return 0444;
3016}
3017
3018static int toshiba_acpi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
3019 u32 attr, int channel, long *val)
3020{
3021 /*
3022 * There is only a single channel and single attribute (for the
3023 * fan) at this point.
3024 * This can be replaced with more advanced logic in the future,
3025 * should the need arise.
3026 */
3027 if (type == hwmon_fan && channel == 0 && attr == hwmon_fan_input) {
3028 u32 value;
3029 int ret;
3030
3031 ret = get_fan_rpm(toshiba_acpi, &value);
3032 if (ret)
3033 return ret;
3034
3035 *val = value;
3036 return 0;
3037 }
3038 return -EOPNOTSUPP;
3039}
3040
3041static const struct hwmon_channel_info * const toshiba_acpi_hwmon_info[] = {
3042 HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT),
3043 NULL
3044};
3045
3046static const struct hwmon_ops toshiba_acpi_hwmon_ops = {
3047 .is_visible = toshiba_acpi_hwmon_is_visible,
3048 .read = toshiba_acpi_hwmon_read,
3049};
3050
3051static const struct hwmon_chip_info toshiba_acpi_hwmon_chip_info = {
3052 .ops = &toshiba_acpi_hwmon_ops,
3053 .info = toshiba_acpi_hwmon_info,
3054};
3055#endif
3056
3057/* ACPI battery hooking */
3058static ssize_t charge_control_end_threshold_show(struct device *device,
3059 struct device_attribute *attr,
3060 char *buf)
3061{
3062 u32 state;
3063 int status;
3064
3065 if (toshiba_acpi == NULL) {
3066 pr_err("Toshiba ACPI object invalid\n");
3067 return -ENODEV;
3068 }
3069
3070 status = toshiba_battery_charge_mode_get(toshiba_acpi, &state);
3071
3072 if (status != 0)
3073 return status;
3074
3075 if (state == 1)
3076 return sprintf(buf, "80\n");
3077 else
3078 return sprintf(buf, "100\n");
3079}
3080
3081static ssize_t charge_control_end_threshold_store(struct device *dev,
3082 struct device_attribute *attr,
3083 const char *buf,
3084 size_t count)
3085{
3086 u32 value;
3087 int rval;
3088
3089 if (toshiba_acpi == NULL) {
3090 pr_err("Toshiba ACPI object invalid\n");
3091 return -ENODEV;
3092 }
3093
3094 rval = kstrtou32(buf, 10, &value);
3095 if (rval)
3096 return rval;
3097
3098 if (value < 1 || value > 100)
3099 return -EINVAL;
3100 rval = toshiba_battery_charge_mode_set(toshiba_acpi,
3101 (value < 90) ? 1 : 0);
3102 if (rval < 0)
3103 return rval;
3104 else
3105 return count;
3106}
3107
3108static DEVICE_ATTR_RW(charge_control_end_threshold);
3109
3110static struct attribute *toshiba_acpi_battery_attrs[] = {
3111 &dev_attr_charge_control_end_threshold.attr,
3112 NULL,
3113};
3114
3115ATTRIBUTE_GROUPS(toshiba_acpi_battery);
3116
3117static int toshiba_acpi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
3118{
3119 if (toshiba_acpi == NULL) {
3120 pr_err("Init order issue\n");
3121 return -ENODEV;
3122 }
3123 if (!toshiba_acpi->battery_charge_mode_supported)
3124 return -ENODEV;
3125 if (device_add_groups(&battery->dev, toshiba_acpi_battery_groups))
3126 return -ENODEV;
3127 return 0;
3128}
3129
3130static int toshiba_acpi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
3131{
3132 device_remove_groups(&battery->dev, toshiba_acpi_battery_groups);
3133 return 0;
3134}
3135
3136static struct acpi_battery_hook battery_hook = {
3137 .add_battery = toshiba_acpi_battery_add,
3138 .remove_battery = toshiba_acpi_battery_remove,
3139 .name = "Toshiba Battery Extension",
3140};
3141
3142static void print_supported_features(struct toshiba_acpi_dev *dev)
3143{
3144 pr_info("Supported laptop features:");
3145
3146 if (dev->hotkey_dev)
3147 pr_cont(" hotkeys");
3148 if (dev->backlight_dev)
3149 pr_cont(" backlight");
3150 if (dev->video_supported)
3151 pr_cont(" video-out");
3152 if (dev->fan_supported)
3153 pr_cont(" fan");
3154 if (dev->fan_rpm_supported)
3155 pr_cont(" fan-rpm");
3156 if (dev->tr_backlight_supported)
3157 pr_cont(" transflective-backlight");
3158 if (dev->illumination_supported)
3159 pr_cont(" illumination");
3160 if (dev->kbd_illum_supported)
3161 pr_cont(" keyboard-backlight");
3162 if (dev->touchpad_supported)
3163 pr_cont(" touchpad");
3164 if (dev->eco_supported)
3165 pr_cont(" eco-led");
3166 if (dev->accelerometer_supported)
3167 pr_cont(" accelerometer-axes");
3168 if (dev->usb_sleep_charge_supported)
3169 pr_cont(" usb-sleep-charge");
3170 if (dev->usb_rapid_charge_supported)
3171 pr_cont(" usb-rapid-charge");
3172 if (dev->usb_sleep_music_supported)
3173 pr_cont(" usb-sleep-music");
3174 if (dev->kbd_function_keys_supported)
3175 pr_cont(" special-function-keys");
3176 if (dev->panel_power_on_supported)
3177 pr_cont(" panel-power-on");
3178 if (dev->usb_three_supported)
3179 pr_cont(" usb3");
3180 if (dev->wwan_supported)
3181 pr_cont(" wwan");
3182 if (dev->cooling_method_supported)
3183 pr_cont(" cooling-method");
3184 if (dev->battery_charge_mode_supported)
3185 pr_cont(" battery-charge-mode");
3186
3187 pr_cont("\n");
3188}
3189
3190static void toshiba_acpi_remove(struct acpi_device *acpi_dev)
3191{
3192 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3193
3194 misc_deregister(&dev->miscdev);
3195
3196 remove_toshiba_proc_entries(dev);
3197
3198#if IS_ENABLED(CONFIG_HWMON)
3199 if (dev->hwmon_device)
3200 hwmon_device_unregister(dev->hwmon_device);
3201#endif
3202
3203 if (dev->accelerometer_supported && dev->indio_dev) {
3204 iio_device_unregister(dev->indio_dev);
3205 iio_device_free(dev->indio_dev);
3206 }
3207
3208 if (dev->sysfs_created)
3209 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3210 &toshiba_attr_group);
3211
3212 if (dev->ntfy_supported) {
3213 i8042_remove_filter(toshiba_acpi_i8042_filter);
3214 cancel_work_sync(&dev->hotkey_work);
3215 }
3216
3217 if (dev->hotkey_dev)
3218 input_unregister_device(dev->hotkey_dev);
3219
3220 backlight_device_unregister(dev->backlight_dev);
3221
3222 led_classdev_unregister(&dev->led_dev);
3223 led_classdev_unregister(&dev->kbd_led);
3224 led_classdev_unregister(&dev->eco_led);
3225
3226 if (dev->wwan_rfk) {
3227 rfkill_unregister(dev->wwan_rfk);
3228 rfkill_destroy(dev->wwan_rfk);
3229 }
3230
3231 if (dev->battery_charge_mode_supported)
3232 battery_hook_unregister(&battery_hook);
3233
3234 if (toshiba_acpi)
3235 toshiba_acpi = NULL;
3236
3237 kfree(dev);
3238}
3239
3240static const char *find_hci_method(acpi_handle handle)
3241{
3242 if (acpi_has_method(handle, "GHCI"))
3243 return "GHCI";
3244
3245 if (acpi_has_method(handle, "SPFC"))
3246 return "SPFC";
3247
3248 return NULL;
3249}
3250
3251/*
3252 * Some Toshibas have a broken acpi-video interface for brightness control,
3253 * these are quirked in drivers/acpi/video_detect.c to use the GPU native
3254 * (/sys/class/backlight/intel_backlight) instead.
3255 * But these need a HCI_SET call to actually turn the panel back on at resume,
3256 * without this call the screen stays black at resume.
3257 * Either HCI_LCD_BRIGHTNESS (used by acpi_video's _BCM) or HCI_PANEL_POWER_ON
3258 * works. toshiba_acpi_resume() uses HCI_PANEL_POWER_ON to avoid changing
3259 * the configured brightness level.
3260 */
3261static const struct dmi_system_id turn_on_panel_on_resume_dmi_ids[] = {
3262 {
3263 /* Toshiba Portégé R700 */
3264 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3265 .matches = {
3266 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3267 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
3268 },
3269 },
3270 {
3271 /* Toshiba Satellite/Portégé R830 */
3272 /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
3273 /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3274 .matches = {
3275 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3276 DMI_MATCH(DMI_PRODUCT_NAME, "R830"),
3277 },
3278 },
3279 {
3280 /* Toshiba Satellite/Portégé Z830 */
3281 .matches = {
3282 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3283 DMI_MATCH(DMI_PRODUCT_NAME, "Z830"),
3284 },
3285 },
3286};
3287
3288static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3289{
3290 struct toshiba_acpi_dev *dev;
3291 const char *hci_method;
3292 u32 dummy;
3293 int ret = 0;
3294
3295 if (toshiba_acpi)
3296 return -EBUSY;
3297
3298 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3299 TOSHIBA_ACPI_VERSION);
3300
3301 hci_method = find_hci_method(acpi_dev->handle);
3302 if (!hci_method) {
3303 pr_err("HCI interface not found\n");
3304 return -ENODEV;
3305 }
3306
3307 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3308 if (!dev)
3309 return -ENOMEM;
3310 dev->acpi_dev = acpi_dev;
3311 dev->method_hci = hci_method;
3312 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3313 dev->miscdev.name = "toshiba_acpi";
3314 dev->miscdev.fops = &toshiba_acpi_fops;
3315
3316 ret = misc_register(&dev->miscdev);
3317 if (ret) {
3318 pr_err("Failed to register miscdevice\n");
3319 kfree(dev);
3320 return ret;
3321 }
3322
3323 acpi_dev->driver_data = dev;
3324 dev_set_drvdata(&acpi_dev->dev, dev);
3325
3326 /* Query the BIOS for supported features */
3327
3328 /*
3329 * The "Special Functions" are always supported by the laptops
3330 * with the new keyboard layout, query for its presence to help
3331 * determine the keymap layout to use.
3332 */
3333 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3334 dev->kbd_function_keys_supported = !ret;
3335
3336 dev->hotkey_event_type = 0;
3337 if (toshiba_acpi_setup_keyboard(dev))
3338 pr_info("Unable to activate hotkeys\n");
3339
3340 /* Determine whether or not BIOS supports transflective backlight */
3341 ret = get_tr_backlight_status(dev, &dummy);
3342 dev->tr_backlight_supported = !ret;
3343
3344 ret = toshiba_acpi_setup_backlight(dev);
3345 if (ret)
3346 goto error;
3347
3348 toshiba_illumination_available(dev);
3349 if (dev->illumination_supported) {
3350 dev->led_dev.name = "toshiba::illumination";
3351 dev->led_dev.max_brightness = 1;
3352 dev->led_dev.brightness_set = toshiba_illumination_set;
3353 dev->led_dev.brightness_get = toshiba_illumination_get;
3354 led_classdev_register(&acpi_dev->dev, &dev->led_dev);
3355 }
3356
3357 toshiba_eco_mode_available(dev);
3358 if (dev->eco_supported) {
3359 dev->eco_led.name = "toshiba::eco_mode";
3360 dev->eco_led.max_brightness = 1;
3361 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3362 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3363 led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led);
3364 }
3365
3366 toshiba_kbd_illum_available(dev);
3367 /*
3368 * Only register the LED if KBD illumination is supported
3369 * and the keyboard backlight operation mode is set to FN-Z
3370 * or we detect a second gen keyboard backlight
3371 */
3372 if (dev->kbd_illum_supported &&
3373 (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3374 dev->kbd_led.name = "toshiba::kbd_backlight";
3375 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3376 dev->kbd_led.max_brightness = 1;
3377 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3378 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3379 led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led);
3380 }
3381
3382 ret = toshiba_touchpad_get(dev, &dummy);
3383 dev->touchpad_supported = !ret;
3384
3385 toshiba_accelerometer_available(dev);
3386 if (dev->accelerometer_supported) {
3387 dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev));
3388 if (!dev->indio_dev) {
3389 pr_err("Unable to allocate iio device\n");
3390 goto iio_error;
3391 }
3392
3393 pr_info("Registering Toshiba accelerometer iio device\n");
3394
3395 dev->indio_dev->info = &toshiba_iio_accel_info;
3396 dev->indio_dev->name = "Toshiba accelerometer";
3397 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3398 dev->indio_dev->channels = toshiba_iio_accel_channels;
3399 dev->indio_dev->num_channels =
3400 ARRAY_SIZE(toshiba_iio_accel_channels);
3401
3402 ret = iio_device_register(dev->indio_dev);
3403 if (ret < 0) {
3404 pr_err("Unable to register iio device\n");
3405 iio_device_free(dev->indio_dev);
3406 }
3407 }
3408iio_error:
3409
3410 toshiba_usb_sleep_charge_available(dev);
3411
3412 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3413 dev->usb_rapid_charge_supported = !ret;
3414
3415 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3416 dev->usb_sleep_music_supported = !ret;
3417
3418 ret = toshiba_panel_power_on_get(dev, &dummy);
3419 dev->panel_power_on_supported = !ret;
3420
3421 ret = toshiba_usb_three_get(dev, &dummy);
3422 dev->usb_three_supported = !ret;
3423
3424 ret = get_video_status(dev, &dummy);
3425 dev->video_supported = !ret;
3426
3427 ret = get_fan_status(dev, &dummy);
3428 dev->fan_supported = !ret;
3429
3430 ret = get_fan_rpm(dev, &dummy);
3431 dev->fan_rpm_supported = !ret;
3432
3433#if IS_ENABLED(CONFIG_HWMON)
3434 if (dev->fan_rpm_supported) {
3435 dev->hwmon_device = hwmon_device_register_with_info(
3436 &dev->acpi_dev->dev, "toshiba_acpi_sensors", NULL,
3437 &toshiba_acpi_hwmon_chip_info, NULL);
3438 if (IS_ERR(dev->hwmon_device)) {
3439 dev->hwmon_device = NULL;
3440 pr_warn("unable to register hwmon device, skipping\n");
3441 }
3442 }
3443#endif
3444
3445 if (turn_on_panel_on_resume == -1)
3446 turn_on_panel_on_resume = dmi_check_system(turn_on_panel_on_resume_dmi_ids);
3447
3448 toshiba_wwan_available(dev);
3449 if (dev->wwan_supported)
3450 toshiba_acpi_setup_wwan_rfkill(dev);
3451
3452 toshiba_cooling_method_available(dev);
3453
3454 toshiba_battery_charge_mode_available(dev);
3455
3456 print_supported_features(dev);
3457
3458 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3459 &toshiba_attr_group);
3460 if (ret) {
3461 dev->sysfs_created = 0;
3462 goto error;
3463 }
3464 dev->sysfs_created = !ret;
3465
3466 create_toshiba_proc_entries(dev);
3467
3468 toshiba_acpi = dev;
3469
3470 /*
3471 * As the battery hook relies on the static variable toshiba_acpi being
3472 * set, this must be done after toshiba_acpi is assigned.
3473 */
3474 if (dev->battery_charge_mode_supported)
3475 battery_hook_register(&battery_hook);
3476
3477 return 0;
3478
3479error:
3480 toshiba_acpi_remove(acpi_dev);
3481 return ret;
3482}
3483
3484static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3485{
3486 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3487
3488 switch (event) {
3489 case 0x80: /* Hotkeys and some system events */
3490 /*
3491 * Machines with this WMI GUID aren't supported due to bugs in
3492 * their AML.
3493 *
3494 * Return silently to avoid triggering a netlink event.
3495 */
3496 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3497 return;
3498 toshiba_acpi_process_hotkeys(dev);
3499 break;
3500 case 0x81: /* Dock events */
3501 case 0x82:
3502 case 0x83:
3503 pr_info("Dock event received %x\n", event);
3504 break;
3505 case 0x88: /* Thermal events */
3506 pr_info("Thermal event received\n");
3507 break;
3508 case 0x8f: /* LID closed */
3509 case 0x90: /* LID is closed and Dock has been ejected */
3510 break;
3511 case 0x8c: /* SATA power events */
3512 case 0x8b:
3513 pr_info("SATA power event received %x\n", event);
3514 break;
3515 case 0x92: /* Keyboard backlight mode changed */
3516 dev->kbd_event_generated = true;
3517 /* Update sysfs entries */
3518 if (sysfs_update_group(&acpi_dev->dev.kobj,
3519 &toshiba_attr_group))
3520 pr_err("Unable to update sysfs entries\n");
3521 /* Notify LED subsystem about keyboard backlight change */
3522 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3523 led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3524 (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3525 LED_FULL : LED_OFF);
3526 break;
3527 case 0x8e: /* Power button pressed */
3528 break;
3529 case 0x85: /* Unknown */
3530 case 0x8d: /* Unknown */
3531 case 0x94: /* Unknown */
3532 case 0x95: /* Unknown */
3533 default:
3534 pr_info("Unknown event received %x\n", event);
3535 break;
3536 }
3537
3538 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3539 dev_name(&acpi_dev->dev),
3540 event, (event == 0x80) ?
3541 dev->last_key_event : 0);
3542}
3543
3544#ifdef CONFIG_PM_SLEEP
3545static int toshiba_acpi_suspend(struct device *device)
3546{
3547 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3548
3549 if (dev->hotkey_dev) {
3550 u32 result;
3551
3552 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3553 if (result != TOS_SUCCESS)
3554 pr_info("Unable to disable hotkeys\n");
3555 }
3556
3557 return 0;
3558}
3559
3560static int toshiba_acpi_resume(struct device *device)
3561{
3562 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3563
3564 if (dev->hotkey_dev) {
3565 if (toshiba_acpi_enable_hotkeys(dev))
3566 pr_info("Unable to re-enable hotkeys\n");
3567 }
3568
3569 if (dev->wwan_rfk) {
3570 if (!toshiba_wireless_status(dev))
3571 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3572 }
3573
3574 if (turn_on_panel_on_resume)
3575 hci_write(dev, HCI_PANEL_POWER_ON, 1);
3576
3577 return 0;
3578}
3579#endif
3580
3581static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3582 toshiba_acpi_suspend, toshiba_acpi_resume);
3583
3584static struct acpi_driver toshiba_acpi_driver = {
3585 .name = "Toshiba ACPI driver",
3586 .owner = THIS_MODULE,
3587 .ids = toshiba_device_ids,
3588 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3589 .ops = {
3590 .add = toshiba_acpi_add,
3591 .remove = toshiba_acpi_remove,
3592 .notify = toshiba_acpi_notify,
3593 },
3594 .drv.pm = &toshiba_acpi_pm,
3595};
3596
3597static int __init toshiba_acpi_init(void)
3598{
3599 int ret;
3600
3601 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3602 if (!toshiba_proc_dir) {
3603 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3604 return -ENODEV;
3605 }
3606
3607 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3608 if (ret) {
3609 pr_err("Failed to register ACPI driver: %d\n", ret);
3610 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3611 }
3612
3613 return ret;
3614}
3615
3616static void __exit toshiba_acpi_exit(void)
3617{
3618 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3619 if (toshiba_proc_dir)
3620 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3621}
3622
3623module_init(toshiba_acpi_init);
3624module_exit(toshiba_acpi_exit);