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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
60static int hci_hotkey_quickstart = -1;
61module_param(hci_hotkey_quickstart, int, 0644);
62MODULE_PARM_DESC(hci_hotkey_quickstart,
63 "Call HCI_HOTKEY_EVENT with value 0x5 for quickstart button support (-1 = auto, 0 = no, 1 = yes");
64
65#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
66
67/* Scan code for Fn key on TOS1900 models */
68#define TOS1900_FN_SCAN 0x6e
69
70/* Toshiba ACPI method paths */
71#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
72
73/*
74 * The Toshiba configuration interface is composed of the HCI and the SCI,
75 * which are defined as follows:
76 *
77 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
78 * be uniform across all their models. Ideally we would just call
79 * dedicated ACPI methods instead of using this primitive interface.
80 * However the ACPI methods seem to be incomplete in some areas (for
81 * example they allow setting, but not reading, the LCD brightness value),
82 * so this is still useful.
83 *
84 * SCI stands for "System Configuration Interface" which aim is to
85 * conceal differences in hardware between different models.
86 */
87
88#define TCI_WORDS 6
89
90/* Operations */
91#define HCI_SET 0xff00
92#define HCI_GET 0xfe00
93#define SCI_OPEN 0xf100
94#define SCI_CLOSE 0xf200
95#define SCI_GET 0xf300
96#define SCI_SET 0xf400
97
98/* Return codes */
99#define TOS_SUCCESS 0x0000
100#define TOS_SUCCESS2 0x0001
101#define TOS_OPEN_CLOSE_OK 0x0044
102#define TOS_FAILURE 0x1000
103#define TOS_NOT_SUPPORTED 0x8000
104#define TOS_ALREADY_OPEN 0x8100
105#define TOS_NOT_OPENED 0x8200
106#define TOS_INPUT_DATA_ERROR 0x8300
107#define TOS_WRITE_PROTECTED 0x8400
108#define TOS_NOT_PRESENT 0x8600
109#define TOS_FIFO_EMPTY 0x8c00
110#define TOS_DATA_NOT_AVAILABLE 0x8d20
111#define TOS_NOT_INITIALIZED 0x8d50
112#define TOS_NOT_INSTALLED 0x8e00
113
114/* Registers */
115#define HCI_PANEL_POWER_ON 0x0002
116#define HCI_FAN 0x0004
117#define HCI_TR_BACKLIGHT 0x0005
118#define HCI_SYSTEM_EVENT 0x0016
119#define HCI_VIDEO_OUT 0x001c
120#define HCI_HOTKEY_EVENT 0x001e
121#define HCI_LCD_BRIGHTNESS 0x002a
122#define HCI_FAN_RPM 0x0045
123#define HCI_WIRELESS 0x0056
124#define HCI_ACCELEROMETER 0x006d
125#define HCI_COOLING_METHOD 0x007f
126#define HCI_KBD_ILLUMINATION 0x0095
127#define HCI_ECO_MODE 0x0097
128#define HCI_ACCELEROMETER2 0x00a6
129#define HCI_BATTERY_CHARGE_MODE 0x00ba
130#define HCI_SYSTEM_INFO 0xc000
131#define SCI_PANEL_POWER_ON 0x010d
132#define SCI_ILLUMINATION 0x014e
133#define SCI_USB_SLEEP_CHARGE 0x0150
134#define SCI_KBD_ILLUM_STATUS 0x015c
135#define SCI_USB_SLEEP_MUSIC 0x015e
136#define SCI_USB_THREE 0x0169
137#define SCI_TOUCHPAD 0x050e
138#define SCI_KBD_FUNCTION_KEYS 0x0522
139
140/* Field definitions */
141#define HCI_ACCEL_MASK 0x7fff
142#define HCI_ACCEL_DIRECTION_MASK 0x8000
143#define HCI_HOTKEY_DISABLE 0x0b
144#define HCI_HOTKEY_ENABLE_QUICKSTART 0x05
145#define HCI_HOTKEY_ENABLE 0x09
146#define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
147#define HCI_LCD_BRIGHTNESS_BITS 3
148#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
149#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
150#define HCI_MISC_SHIFT 0x10
151#define HCI_SYSTEM_TYPE1 0x10
152#define HCI_SYSTEM_TYPE2 0x11
153#define HCI_VIDEO_OUT_LCD 0x1
154#define HCI_VIDEO_OUT_CRT 0x2
155#define HCI_VIDEO_OUT_TV 0x4
156#define SCI_KBD_MODE_MASK 0x1f
157#define SCI_KBD_MODE_FNZ 0x1
158#define SCI_KBD_MODE_AUTO 0x2
159#define SCI_KBD_MODE_ON 0x8
160#define SCI_KBD_MODE_OFF 0x10
161#define SCI_KBD_TIME_MAX 0x3c001a
162#define HCI_WIRELESS_STATUS 0x1
163#define HCI_WIRELESS_WWAN 0x3
164#define HCI_WIRELESS_WWAN_STATUS 0x2000
165#define HCI_WIRELESS_WWAN_POWER 0x4000
166#define SCI_USB_CHARGE_MODE_MASK 0xff
167#define SCI_USB_CHARGE_DISABLED 0x00
168#define SCI_USB_CHARGE_ALTERNATE 0x09
169#define SCI_USB_CHARGE_TYPICAL 0x11
170#define SCI_USB_CHARGE_AUTO 0x21
171#define SCI_USB_CHARGE_BAT_MASK 0x7
172#define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
173#define SCI_USB_CHARGE_BAT_LVL_ON 0x4
174#define SCI_USB_CHARGE_BAT_LVL 0x0200
175#define SCI_USB_CHARGE_RAPID_DSP 0x0300
176
177struct toshiba_acpi_dev {
178 struct acpi_device *acpi_dev;
179 const char *method_hci;
180 struct input_dev *hotkey_dev;
181 struct work_struct hotkey_work;
182 struct backlight_device *backlight_dev;
183 struct led_classdev led_dev;
184 struct led_classdev kbd_led;
185 struct led_classdev eco_led;
186 struct miscdevice miscdev;
187 struct rfkill *wwan_rfk;
188 struct iio_dev *indio_dev;
189#if IS_ENABLED(CONFIG_HWMON)
190 struct device *hwmon_device;
191#endif
192
193 int force_fan;
194 int last_key_event;
195 int key_event_valid;
196 int kbd_type;
197 int kbd_mode;
198 int kbd_time;
199 int usbsc_bat_level;
200 int usbsc_mode_base;
201 int hotkey_event_type;
202 int max_cooling_method;
203
204 unsigned int illumination_supported:1;
205 unsigned int video_supported:1;
206 unsigned int fan_supported:1;
207 unsigned int fan_rpm_supported:1;
208 unsigned int system_event_supported:1;
209 unsigned int ntfy_supported:1;
210 unsigned int info_supported:1;
211 unsigned int tr_backlight_supported:1;
212 unsigned int kbd_illum_supported:1;
213 unsigned int touchpad_supported:1;
214 unsigned int eco_supported:1;
215 unsigned int accelerometer_supported:1;
216 unsigned int usb_sleep_charge_supported:1;
217 unsigned int usb_rapid_charge_supported:1;
218 unsigned int usb_sleep_music_supported:1;
219 unsigned int kbd_function_keys_supported:1;
220 unsigned int panel_power_on_supported:1;
221 unsigned int usb_three_supported:1;
222 unsigned int wwan_supported:1;
223 unsigned int cooling_method_supported:1;
224 unsigned int battery_charge_mode_supported:1;
225 unsigned int sysfs_created:1;
226 unsigned int special_functions;
227
228 bool kbd_event_generated;
229 bool killswitch;
230};
231
232static struct toshiba_acpi_dev *toshiba_acpi;
233
234static bool disable_hotkeys;
235module_param(disable_hotkeys, bool, 0444);
236MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
237
238static const struct acpi_device_id toshiba_device_ids[] = {
239 {"TOS6200", 0},
240 {"TOS6207", 0},
241 {"TOS6208", 0},
242 {"TOS1900", 0},
243 {"", 0},
244};
245MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
246
247static const struct key_entry toshiba_acpi_keymap[] = {
248 { KE_KEY, 0x9e, { KEY_RFKILL } },
249 { KE_KEY, 0x101, { KEY_MUTE } },
250 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
251 { KE_KEY, 0x103, { KEY_ZOOMIN } },
252 { KE_KEY, 0x10f, { KEY_TAB } },
253 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
254 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
255 { KE_KEY, 0x13b, { KEY_COFFEE } },
256 { KE_KEY, 0x13c, { KEY_BATTERY } },
257 { KE_KEY, 0x13d, { KEY_SLEEP } },
258 { KE_KEY, 0x13e, { KEY_SUSPEND } },
259 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
260 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
261 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
262 { KE_KEY, 0x142, { KEY_WLAN } },
263 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
264 { KE_KEY, 0x17f, { KEY_FN } },
265 { KE_KEY, 0xb05, { KEY_PROG2 } },
266 { KE_KEY, 0xb06, { KEY_WWW } },
267 { KE_KEY, 0xb07, { KEY_MAIL } },
268 { KE_KEY, 0xb30, { KEY_STOP } },
269 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
270 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
271 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
272 { KE_KEY, 0xb5a, { KEY_MEDIA } },
273 { KE_IGNORE, 0x0e00, { KEY_RESERVED } }, /* Wake from sleep */
274 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
275 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
276 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
277 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
278 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
279 { KE_END, 0 },
280};
281
282static const struct key_entry toshiba_acpi_alt_keymap[] = {
283 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
284 { KE_KEY, 0x103, { KEY_ZOOMIN } },
285 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
286 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
287 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
288 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
289 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
290 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
291 { KE_KEY, 0x157, { KEY_MUTE } },
292 { KE_KEY, 0x158, { KEY_WLAN } },
293 { KE_END, 0 },
294};
295
296/*
297 * Utility
298 */
299
300static inline void _set_bit(u32 *word, u32 mask, int value)
301{
302 *word = (*word & ~mask) | (mask * value);
303}
304
305/*
306 * ACPI interface wrappers
307 */
308
309static int write_acpi_int(const char *methodName, int val)
310{
311 acpi_status status;
312
313 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
314 return (status == AE_OK) ? 0 : -EIO;
315}
316
317/*
318 * Perform a raw configuration call. Here we don't care about input or output
319 * buffer format.
320 */
321static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
322 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
323{
324 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
325 struct acpi_object_list params;
326 struct acpi_buffer results;
327 acpi_status status;
328 int i;
329
330 params.count = TCI_WORDS;
331 params.pointer = in_objs;
332 for (i = 0; i < TCI_WORDS; ++i) {
333 in_objs[i].type = ACPI_TYPE_INTEGER;
334 in_objs[i].integer.value = in[i];
335 }
336
337 results.length = sizeof(out_objs);
338 results.pointer = out_objs;
339
340 status = acpi_evaluate_object(dev->acpi_dev->handle,
341 (char *)dev->method_hci, ¶ms,
342 &results);
343 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
344 for (i = 0; i < out_objs->package.count; ++i)
345 out[i] = out_objs->package.elements[i].integer.value;
346 }
347
348 return status;
349}
350
351/*
352 * Common hci tasks
353 *
354 * In addition to the ACPI status, the HCI system returns a result which
355 * may be useful (such as "not supported").
356 */
357
358static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
359{
360 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
361 u32 out[TCI_WORDS];
362 acpi_status status = tci_raw(dev, in, out);
363
364 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
365}
366
367static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
368{
369 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
370 u32 out[TCI_WORDS];
371 acpi_status status = tci_raw(dev, in, out);
372
373 if (ACPI_FAILURE(status))
374 return TOS_FAILURE;
375
376 *out1 = out[2];
377
378 return out[0];
379}
380
381/*
382 * Common sci tasks
383 */
384
385static int sci_open(struct toshiba_acpi_dev *dev)
386{
387 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
388 u32 out[TCI_WORDS];
389 acpi_status status = tci_raw(dev, in, out);
390
391 if (ACPI_FAILURE(status)) {
392 pr_err("ACPI call to open SCI failed\n");
393 return 0;
394 }
395
396 if (out[0] == TOS_OPEN_CLOSE_OK) {
397 return 1;
398 } else if (out[0] == TOS_ALREADY_OPEN) {
399 pr_info("Toshiba SCI already opened\n");
400 return 1;
401 } else if (out[0] == TOS_NOT_SUPPORTED) {
402 /*
403 * Some BIOSes do not have the SCI open/close functions
404 * implemented and return 0x8000 (Not Supported), failing to
405 * register some supported features.
406 *
407 * Simply return 1 if we hit those affected laptops to make the
408 * supported features work.
409 *
410 * In the case that some laptops really do not support the SCI,
411 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
412 * and thus, not registering support for the queried feature.
413 */
414 return 1;
415 } else if (out[0] == TOS_NOT_PRESENT) {
416 pr_info("Toshiba SCI is not present\n");
417 }
418
419 return 0;
420}
421
422static void sci_close(struct toshiba_acpi_dev *dev)
423{
424 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
425 u32 out[TCI_WORDS];
426 acpi_status status = tci_raw(dev, in, out);
427
428 if (ACPI_FAILURE(status)) {
429 pr_err("ACPI call to close SCI failed\n");
430 return;
431 }
432
433 if (out[0] == TOS_OPEN_CLOSE_OK)
434 return;
435 else if (out[0] == TOS_NOT_OPENED)
436 pr_info("Toshiba SCI not opened\n");
437 else if (out[0] == TOS_NOT_PRESENT)
438 pr_info("Toshiba SCI is not present\n");
439}
440
441static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
442{
443 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
444 u32 out[TCI_WORDS];
445 acpi_status status = tci_raw(dev, in, out);
446
447 if (ACPI_FAILURE(status))
448 return TOS_FAILURE;
449
450 *out1 = out[2];
451
452 return out[0];
453}
454
455static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
456{
457 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
458 u32 out[TCI_WORDS];
459 acpi_status status = tci_raw(dev, in, out);
460
461 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
462}
463
464/* Illumination support */
465static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
466{
467 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
468 u32 out[TCI_WORDS];
469 acpi_status status;
470
471 dev->illumination_supported = 0;
472
473 if (!sci_open(dev))
474 return;
475
476 status = tci_raw(dev, in, out);
477 sci_close(dev);
478 if (ACPI_FAILURE(status)) {
479 pr_err("ACPI call to query Illumination support failed\n");
480 return;
481 }
482
483 if (out[0] != TOS_SUCCESS)
484 return;
485
486 dev->illumination_supported = 1;
487}
488
489static void toshiba_illumination_set(struct led_classdev *cdev,
490 enum led_brightness brightness)
491{
492 struct toshiba_acpi_dev *dev = container_of(cdev,
493 struct toshiba_acpi_dev, led_dev);
494 u32 result;
495 u32 state;
496
497 /* First request : initialize communication. */
498 if (!sci_open(dev))
499 return;
500
501 /* Switch the illumination on/off */
502 state = brightness ? 1 : 0;
503 result = sci_write(dev, SCI_ILLUMINATION, state);
504 sci_close(dev);
505 if (result == TOS_FAILURE)
506 pr_err("ACPI call for illumination failed\n");
507}
508
509static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
510{
511 struct toshiba_acpi_dev *dev = container_of(cdev,
512 struct toshiba_acpi_dev, led_dev);
513 u32 result;
514 u32 state;
515
516 /* First request : initialize communication. */
517 if (!sci_open(dev))
518 return LED_OFF;
519
520 /* Check the illumination */
521 result = sci_read(dev, SCI_ILLUMINATION, &state);
522 sci_close(dev);
523 if (result == TOS_FAILURE) {
524 pr_err("ACPI call for illumination failed\n");
525 return LED_OFF;
526 } else if (result != TOS_SUCCESS) {
527 return LED_OFF;
528 }
529
530 return state ? LED_FULL : LED_OFF;
531}
532
533/* KBD Illumination */
534static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
535{
536 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
537 u32 out[TCI_WORDS];
538 acpi_status status;
539
540 dev->kbd_illum_supported = 0;
541 dev->kbd_event_generated = false;
542
543 if (!sci_open(dev))
544 return;
545
546 status = tci_raw(dev, in, out);
547 sci_close(dev);
548 if (ACPI_FAILURE(status)) {
549 pr_err("ACPI call to query kbd illumination support failed\n");
550 return;
551 }
552
553 if (out[0] != TOS_SUCCESS)
554 return;
555
556 /*
557 * Check for keyboard backlight timeout max value,
558 * previous kbd backlight implementation set this to
559 * 0x3c0003, and now the new implementation set this
560 * to 0x3c001a, use this to distinguish between them.
561 */
562 if (out[3] == SCI_KBD_TIME_MAX)
563 dev->kbd_type = 2;
564 else
565 dev->kbd_type = 1;
566 /* Get the current keyboard backlight mode */
567 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
568 /* Get the current time (1-60 seconds) */
569 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
570 /* Flag as supported */
571 dev->kbd_illum_supported = 1;
572}
573
574static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
575{
576 u32 result;
577
578 if (!sci_open(dev))
579 return -EIO;
580
581 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
582 sci_close(dev);
583 if (result == TOS_FAILURE)
584 pr_err("ACPI call to set KBD backlight status failed\n");
585 else if (result == TOS_NOT_SUPPORTED)
586 return -ENODEV;
587
588 return result == TOS_SUCCESS ? 0 : -EIO;
589}
590
591static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
592{
593 u32 result;
594
595 if (!sci_open(dev))
596 return -EIO;
597
598 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
599 sci_close(dev);
600 if (result == TOS_FAILURE)
601 pr_err("ACPI call to get KBD backlight status failed\n");
602 else if (result == TOS_NOT_SUPPORTED)
603 return -ENODEV;
604
605 return result == TOS_SUCCESS ? 0 : -EIO;
606}
607
608static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
609{
610 struct toshiba_acpi_dev *dev = container_of(cdev,
611 struct toshiba_acpi_dev, kbd_led);
612 u32 result;
613 u32 state;
614
615 /* Check the keyboard backlight state */
616 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
617 if (result == TOS_FAILURE) {
618 pr_err("ACPI call to get the keyboard backlight failed\n");
619 return LED_OFF;
620 } else if (result != TOS_SUCCESS) {
621 return LED_OFF;
622 }
623
624 return state ? LED_FULL : LED_OFF;
625}
626
627static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
628 enum led_brightness brightness)
629{
630 struct toshiba_acpi_dev *dev = container_of(cdev,
631 struct toshiba_acpi_dev, kbd_led);
632 u32 result;
633 u32 state;
634
635 /* Set the keyboard backlight state */
636 state = brightness ? 1 : 0;
637 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
638 if (result == TOS_FAILURE)
639 pr_err("ACPI call to set KBD Illumination mode failed\n");
640}
641
642/* TouchPad support */
643static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
644{
645 u32 result;
646
647 if (!sci_open(dev))
648 return -EIO;
649
650 result = sci_write(dev, SCI_TOUCHPAD, state);
651 sci_close(dev);
652 if (result == TOS_FAILURE)
653 pr_err("ACPI call to set the touchpad failed\n");
654 else if (result == TOS_NOT_SUPPORTED)
655 return -ENODEV;
656
657 return result == TOS_SUCCESS ? 0 : -EIO;
658}
659
660static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
661{
662 u32 result;
663
664 if (!sci_open(dev))
665 return -EIO;
666
667 result = sci_read(dev, SCI_TOUCHPAD, state);
668 sci_close(dev);
669 if (result == TOS_FAILURE)
670 pr_err("ACPI call to query the touchpad failed\n");
671 else if (result == TOS_NOT_SUPPORTED)
672 return -ENODEV;
673
674 return result == TOS_SUCCESS ? 0 : -EIO;
675}
676
677/* Eco Mode support */
678static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
679{
680 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
681 u32 out[TCI_WORDS];
682 acpi_status status;
683
684 dev->eco_supported = 0;
685
686 status = tci_raw(dev, in, out);
687 if (ACPI_FAILURE(status)) {
688 pr_err("ACPI call to get ECO led failed\n");
689 return;
690 }
691
692 if (out[0] == TOS_INPUT_DATA_ERROR || out[0] == TOS_NOT_SUPPORTED) {
693 /*
694 * If we receive 0x8300 (Input Data Error), it means that the
695 * LED device is present, but that we just screwed the input
696 * parameters.
697 *
698 * On some laptops 0x8000 (Not supported) is also returned in
699 * this case, so we need to allow for that as well.
700 *
701 * Let's query the status of the LED to see if we really have a
702 * success response, indicating the actual presense of the LED,
703 * bail out otherwise.
704 */
705 in[3] = 1;
706 status = tci_raw(dev, in, out);
707 if (ACPI_FAILURE(status)) {
708 pr_err("ACPI call to get ECO led failed\n");
709 return;
710 }
711
712 if (out[0] != TOS_SUCCESS)
713 return;
714
715 dev->eco_supported = 1;
716 }
717}
718
719static enum led_brightness
720toshiba_eco_mode_get_status(struct led_classdev *cdev)
721{
722 struct toshiba_acpi_dev *dev = container_of(cdev,
723 struct toshiba_acpi_dev, eco_led);
724 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
725 u32 out[TCI_WORDS];
726 acpi_status status;
727
728 status = tci_raw(dev, in, out);
729 if (ACPI_FAILURE(status)) {
730 pr_err("ACPI call to get ECO led failed\n");
731 return LED_OFF;
732 }
733
734 if (out[0] != TOS_SUCCESS)
735 return LED_OFF;
736
737 return out[2] ? LED_FULL : LED_OFF;
738}
739
740static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
741 enum led_brightness brightness)
742{
743 struct toshiba_acpi_dev *dev = container_of(cdev,
744 struct toshiba_acpi_dev, eco_led);
745 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
746 u32 out[TCI_WORDS];
747 acpi_status status;
748
749 /* Switch the Eco Mode led on/off */
750 in[2] = (brightness) ? 1 : 0;
751 status = tci_raw(dev, in, out);
752 if (ACPI_FAILURE(status))
753 pr_err("ACPI call to set ECO led failed\n");
754}
755
756/* Accelerometer support */
757static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
758{
759 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
760 u32 out[TCI_WORDS];
761 acpi_status status;
762
763 dev->accelerometer_supported = 0;
764
765 /*
766 * Check if the accelerometer call exists,
767 * this call also serves as initialization
768 */
769 status = tci_raw(dev, in, out);
770 if (ACPI_FAILURE(status)) {
771 pr_err("ACPI call to query the accelerometer failed\n");
772 return;
773 }
774
775 if (out[0] != TOS_SUCCESS)
776 return;
777
778 dev->accelerometer_supported = 1;
779}
780
781static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
782 u32 *xy, u32 *z)
783{
784 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
785 u32 out[TCI_WORDS];
786 acpi_status status;
787
788 /* Check the Accelerometer status */
789 status = tci_raw(dev, in, out);
790 if (ACPI_FAILURE(status)) {
791 pr_err("ACPI call to query the accelerometer failed\n");
792 return -EIO;
793 }
794
795 if (out[0] == TOS_NOT_SUPPORTED)
796 return -ENODEV;
797
798 if (out[0] != TOS_SUCCESS)
799 return -EIO;
800
801 *xy = out[2];
802 *z = out[4];
803
804 return 0;
805}
806
807/* Sleep (Charge and Music) utilities support */
808static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
809{
810 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
811 u32 out[TCI_WORDS];
812 acpi_status status;
813
814 dev->usb_sleep_charge_supported = 0;
815
816 if (!sci_open(dev))
817 return;
818
819 status = tci_raw(dev, in, out);
820 if (ACPI_FAILURE(status)) {
821 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
822 sci_close(dev);
823 return;
824 }
825
826 if (out[0] != TOS_SUCCESS) {
827 sci_close(dev);
828 return;
829 }
830
831 dev->usbsc_mode_base = out[4];
832
833 in[5] = SCI_USB_CHARGE_BAT_LVL;
834 status = tci_raw(dev, in, out);
835 sci_close(dev);
836 if (ACPI_FAILURE(status)) {
837 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
838 return;
839 }
840
841 if (out[0] != TOS_SUCCESS)
842 return;
843
844 dev->usbsc_bat_level = out[2];
845 /* Flag as supported */
846 dev->usb_sleep_charge_supported = 1;
847}
848
849static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
850 u32 *mode)
851{
852 u32 result;
853
854 if (!sci_open(dev))
855 return -EIO;
856
857 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
858 sci_close(dev);
859 if (result == TOS_FAILURE)
860 pr_err("ACPI call to set USB S&C mode failed\n");
861 else if (result == TOS_NOT_SUPPORTED)
862 return -ENODEV;
863
864 return result == TOS_SUCCESS ? 0 : -EIO;
865}
866
867static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
868 u32 mode)
869{
870 u32 result;
871
872 if (!sci_open(dev))
873 return -EIO;
874
875 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
876 sci_close(dev);
877 if (result == TOS_FAILURE)
878 pr_err("ACPI call to set USB S&C mode failed\n");
879 else if (result == TOS_NOT_SUPPORTED)
880 return -ENODEV;
881
882 return result == TOS_SUCCESS ? 0 : -EIO;
883}
884
885static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
886 u32 *mode)
887{
888 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
889 u32 out[TCI_WORDS];
890 acpi_status status;
891
892 if (!sci_open(dev))
893 return -EIO;
894
895 in[5] = SCI_USB_CHARGE_BAT_LVL;
896 status = tci_raw(dev, in, out);
897 sci_close(dev);
898 if (ACPI_FAILURE(status)) {
899 pr_err("ACPI call to get USB S&C battery level failed\n");
900 return -EIO;
901 }
902
903 if (out[0] == TOS_NOT_SUPPORTED)
904 return -ENODEV;
905
906 if (out[0] != TOS_SUCCESS)
907 return -EIO;
908
909 *mode = out[2];
910
911 return 0;
912
913}
914
915static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
916 u32 mode)
917{
918 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
919 u32 out[TCI_WORDS];
920 acpi_status status;
921
922 if (!sci_open(dev))
923 return -EIO;
924
925 in[2] = mode;
926 in[5] = SCI_USB_CHARGE_BAT_LVL;
927 status = tci_raw(dev, in, out);
928 sci_close(dev);
929 if (ACPI_FAILURE(status)) {
930 pr_err("ACPI call to set USB S&C battery level failed\n");
931 return -EIO;
932 }
933
934 if (out[0] == TOS_NOT_SUPPORTED)
935 return -ENODEV;
936
937 return out[0] == TOS_SUCCESS ? 0 : -EIO;
938}
939
940static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
941 u32 *state)
942{
943 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
944 u32 out[TCI_WORDS];
945 acpi_status status;
946
947 if (!sci_open(dev))
948 return -EIO;
949
950 in[5] = SCI_USB_CHARGE_RAPID_DSP;
951 status = tci_raw(dev, in, out);
952 sci_close(dev);
953 if (ACPI_FAILURE(status)) {
954 pr_err("ACPI call to get USB Rapid Charge failed\n");
955 return -EIO;
956 }
957
958 if (out[0] == TOS_NOT_SUPPORTED)
959 return -ENODEV;
960
961 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
962 return -EIO;
963
964 *state = out[2];
965
966 return 0;
967}
968
969static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
970 u32 state)
971{
972 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
973 u32 out[TCI_WORDS];
974 acpi_status status;
975
976 if (!sci_open(dev))
977 return -EIO;
978
979 in[2] = state;
980 in[5] = SCI_USB_CHARGE_RAPID_DSP;
981 status = tci_raw(dev, in, out);
982 sci_close(dev);
983 if (ACPI_FAILURE(status)) {
984 pr_err("ACPI call to set USB Rapid Charge failed\n");
985 return -EIO;
986 }
987
988 if (out[0] == TOS_NOT_SUPPORTED)
989 return -ENODEV;
990
991 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
992}
993
994static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
995{
996 u32 result;
997
998 if (!sci_open(dev))
999 return -EIO;
1000
1001 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
1002 sci_close(dev);
1003 if (result == TOS_FAILURE)
1004 pr_err("ACPI call to get Sleep and Music failed\n");
1005 else if (result == TOS_NOT_SUPPORTED)
1006 return -ENODEV;
1007
1008 return result == TOS_SUCCESS ? 0 : -EIO;
1009}
1010
1011static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1012{
1013 u32 result;
1014
1015 if (!sci_open(dev))
1016 return -EIO;
1017
1018 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1019 sci_close(dev);
1020 if (result == TOS_FAILURE)
1021 pr_err("ACPI call to set Sleep and Music failed\n");
1022 else if (result == TOS_NOT_SUPPORTED)
1023 return -ENODEV;
1024
1025 return result == TOS_SUCCESS ? 0 : -EIO;
1026}
1027
1028/* Keyboard function keys */
1029static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1030{
1031 u32 result;
1032
1033 if (!sci_open(dev))
1034 return -EIO;
1035
1036 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1037 sci_close(dev);
1038 if (result == TOS_FAILURE)
1039 pr_err("ACPI call to get KBD function keys failed\n");
1040 else if (result == TOS_NOT_SUPPORTED)
1041 return -ENODEV;
1042
1043 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1044}
1045
1046static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1047{
1048 u32 result;
1049
1050 if (!sci_open(dev))
1051 return -EIO;
1052
1053 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1054 sci_close(dev);
1055 if (result == TOS_FAILURE)
1056 pr_err("ACPI call to set KBD function keys failed\n");
1057 else if (result == TOS_NOT_SUPPORTED)
1058 return -ENODEV;
1059
1060 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1061}
1062
1063/* Panel Power ON */
1064static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1065{
1066 u32 result;
1067
1068 if (!sci_open(dev))
1069 return -EIO;
1070
1071 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1072 sci_close(dev);
1073 if (result == TOS_FAILURE)
1074 pr_err("ACPI call to get Panel Power ON failed\n");
1075 else if (result == TOS_NOT_SUPPORTED)
1076 return -ENODEV;
1077
1078 return result == TOS_SUCCESS ? 0 : -EIO;
1079}
1080
1081static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1082{
1083 u32 result;
1084
1085 if (!sci_open(dev))
1086 return -EIO;
1087
1088 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1089 sci_close(dev);
1090 if (result == TOS_FAILURE)
1091 pr_err("ACPI call to set Panel Power ON failed\n");
1092 else if (result == TOS_NOT_SUPPORTED)
1093 return -ENODEV;
1094
1095 return result == TOS_SUCCESS ? 0 : -EIO;
1096}
1097
1098/* USB Three */
1099static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1100{
1101 u32 result;
1102
1103 if (!sci_open(dev))
1104 return -EIO;
1105
1106 result = sci_read(dev, SCI_USB_THREE, state);
1107 sci_close(dev);
1108 if (result == TOS_FAILURE)
1109 pr_err("ACPI call to get USB 3 failed\n");
1110 else if (result == TOS_NOT_SUPPORTED)
1111 return -ENODEV;
1112
1113 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1114}
1115
1116static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1117{
1118 u32 result;
1119
1120 if (!sci_open(dev))
1121 return -EIO;
1122
1123 result = sci_write(dev, SCI_USB_THREE, state);
1124 sci_close(dev);
1125 if (result == TOS_FAILURE)
1126 pr_err("ACPI call to set USB 3 failed\n");
1127 else if (result == TOS_NOT_SUPPORTED)
1128 return -ENODEV;
1129
1130 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1131}
1132
1133/* Hotkey Event type */
1134static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1135 u32 *type)
1136{
1137 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1138 u32 out[TCI_WORDS];
1139 acpi_status status;
1140
1141 status = tci_raw(dev, in, out);
1142 if (ACPI_FAILURE(status)) {
1143 pr_err("ACPI call to get System type failed\n");
1144 return -EIO;
1145 }
1146
1147 if (out[0] == TOS_NOT_SUPPORTED)
1148 return -ENODEV;
1149
1150 if (out[0] != TOS_SUCCESS)
1151 return -EIO;
1152
1153 *type = out[3];
1154
1155 return 0;
1156}
1157
1158/* Wireless status (RFKill, WLAN, BT, WWAN) */
1159static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1160{
1161 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1162 u32 out[TCI_WORDS];
1163 acpi_status status;
1164
1165 in[3] = HCI_WIRELESS_STATUS;
1166 status = tci_raw(dev, in, out);
1167
1168 if (ACPI_FAILURE(status)) {
1169 pr_err("ACPI call to get Wireless status failed\n");
1170 return -EIO;
1171 }
1172
1173 if (out[0] == TOS_NOT_SUPPORTED)
1174 return -ENODEV;
1175
1176 if (out[0] != TOS_SUCCESS)
1177 return -EIO;
1178
1179 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1180
1181 return 0;
1182}
1183
1184/* WWAN */
1185static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1186{
1187 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1188 u32 out[TCI_WORDS];
1189 acpi_status status;
1190
1191 dev->wwan_supported = 0;
1192
1193 /*
1194 * WWAN support can be queried by setting the in[3] value to
1195 * HCI_WIRELESS_WWAN (0x03).
1196 *
1197 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1198 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1199 *
1200 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1201 * or TOS_NOT_SUPPORTED (0x8000).
1202 */
1203 in[3] = HCI_WIRELESS_WWAN;
1204 status = tci_raw(dev, in, out);
1205 if (ACPI_FAILURE(status)) {
1206 pr_err("ACPI call to get WWAN status failed\n");
1207 return;
1208 }
1209
1210 if (out[0] != TOS_SUCCESS)
1211 return;
1212
1213 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1214}
1215
1216static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1217{
1218 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1219 u32 out[TCI_WORDS];
1220 acpi_status status;
1221
1222 in[3] = HCI_WIRELESS_WWAN_STATUS;
1223 status = tci_raw(dev, in, out);
1224 if (ACPI_FAILURE(status)) {
1225 pr_err("ACPI call to set WWAN status failed\n");
1226 return -EIO;
1227 }
1228
1229 if (out[0] == TOS_NOT_SUPPORTED)
1230 return -ENODEV;
1231
1232 if (out[0] != TOS_SUCCESS)
1233 return -EIO;
1234
1235 /*
1236 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1237 * (de)activate the device, but some others need the
1238 * HCI_WIRELESS_WWAN_POWER call as well.
1239 */
1240 in[3] = HCI_WIRELESS_WWAN_POWER;
1241 status = tci_raw(dev, in, out);
1242 if (ACPI_FAILURE(status)) {
1243 pr_err("ACPI call to set WWAN power failed\n");
1244 return -EIO;
1245 }
1246
1247 if (out[0] == TOS_NOT_SUPPORTED)
1248 return -ENODEV;
1249
1250 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1251}
1252
1253/* Cooling Method */
1254static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1255{
1256 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1257 u32 out[TCI_WORDS];
1258 acpi_status status;
1259
1260 dev->cooling_method_supported = 0;
1261 dev->max_cooling_method = 0;
1262
1263 status = tci_raw(dev, in, out);
1264 if (ACPI_FAILURE(status)) {
1265 pr_err("ACPI call to get Cooling Method failed\n");
1266 return;
1267 }
1268
1269 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1270 return;
1271
1272 dev->cooling_method_supported = 1;
1273 dev->max_cooling_method = out[3];
1274}
1275
1276static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1277{
1278 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1279
1280 if (result == TOS_FAILURE)
1281 pr_err("ACPI call to get Cooling Method failed\n");
1282
1283 if (result == TOS_NOT_SUPPORTED)
1284 return -ENODEV;
1285
1286 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1287}
1288
1289static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1290{
1291 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1292
1293 if (result == TOS_FAILURE)
1294 pr_err("ACPI call to set Cooling Method failed\n");
1295
1296 if (result == TOS_NOT_SUPPORTED)
1297 return -ENODEV;
1298
1299 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1300}
1301
1302/* Battery charge control */
1303static void toshiba_battery_charge_mode_available(struct toshiba_acpi_dev *dev)
1304{
1305 u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0 };
1306 u32 out[TCI_WORDS];
1307 acpi_status status;
1308
1309 dev->battery_charge_mode_supported = 0;
1310
1311 status = tci_raw(dev, in, out);
1312 if (ACPI_FAILURE(status)) {
1313 pr_err("ACPI call to get Battery Charge Mode failed\n");
1314 return;
1315 }
1316
1317 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1318 return;
1319
1320 dev->battery_charge_mode_supported = 1;
1321}
1322
1323static int toshiba_battery_charge_mode_get(struct toshiba_acpi_dev *dev, u32 *state)
1324{
1325 u32 in[TCI_WORDS] = { HCI_GET, HCI_BATTERY_CHARGE_MODE, 0, 0, 0, 0x1 };
1326 u32 out[TCI_WORDS];
1327 int retries = 3;
1328
1329 do {
1330 acpi_status status = tci_raw(dev, in, out);
1331
1332 if (ACPI_FAILURE(status))
1333 pr_err("ACPI call to get Battery Charge Mode failed\n");
1334 switch (out[0]) {
1335 case TOS_SUCCESS:
1336 case TOS_SUCCESS2:
1337 *state = out[2];
1338 return 0;
1339 case TOS_NOT_SUPPORTED:
1340 return -ENODEV;
1341 case TOS_DATA_NOT_AVAILABLE:
1342 retries--;
1343 break;
1344 default:
1345 return -EIO;
1346 }
1347 } while (retries);
1348
1349 return -EIO;
1350}
1351
1352static int toshiba_battery_charge_mode_set(struct toshiba_acpi_dev *dev, u32 state)
1353{
1354 u32 result = hci_write(dev, HCI_BATTERY_CHARGE_MODE, state);
1355
1356 if (result == TOS_FAILURE)
1357 pr_err("ACPI call to set Battery Charge Mode failed\n");
1358
1359 if (result == TOS_NOT_SUPPORTED)
1360 return -ENODEV;
1361
1362 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1363}
1364
1365/* Transflective Backlight */
1366static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1367{
1368 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1369
1370 if (result == TOS_FAILURE)
1371 pr_err("ACPI call to get Transflective Backlight failed\n");
1372 else if (result == TOS_NOT_SUPPORTED)
1373 return -ENODEV;
1374
1375 return result == TOS_SUCCESS ? 0 : -EIO;
1376}
1377
1378static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1379{
1380 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1381
1382 if (result == TOS_FAILURE)
1383 pr_err("ACPI call to set Transflective Backlight failed\n");
1384 else if (result == TOS_NOT_SUPPORTED)
1385 return -ENODEV;
1386
1387 return result == TOS_SUCCESS ? 0 : -EIO;
1388}
1389
1390static struct proc_dir_entry *toshiba_proc_dir;
1391
1392/* LCD Brightness */
1393static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1394{
1395 int brightness = 0;
1396 u32 result;
1397 u32 value;
1398
1399 if (dev->tr_backlight_supported) {
1400 int ret = get_tr_backlight_status(dev, &value);
1401
1402 if (ret)
1403 return ret;
1404 if (value)
1405 return 0;
1406 brightness++;
1407 }
1408
1409 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1410 if (result == TOS_FAILURE)
1411 pr_err("ACPI call to get LCD Brightness failed\n");
1412 else if (result == TOS_NOT_SUPPORTED)
1413 return -ENODEV;
1414
1415 return result == TOS_SUCCESS ?
1416 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1417 -EIO;
1418}
1419
1420static int get_lcd_brightness(struct backlight_device *bd)
1421{
1422 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1423
1424 return __get_lcd_brightness(dev);
1425}
1426
1427static int lcd_proc_show(struct seq_file *m, void *v)
1428{
1429 struct toshiba_acpi_dev *dev = m->private;
1430 int levels;
1431 int value;
1432
1433 if (!dev->backlight_dev)
1434 return -ENODEV;
1435
1436 levels = dev->backlight_dev->props.max_brightness + 1;
1437 value = get_lcd_brightness(dev->backlight_dev);
1438 if (value < 0) {
1439 pr_err("Error reading LCD brightness\n");
1440 return value;
1441 }
1442
1443 seq_printf(m, "brightness: %d\n", value);
1444 seq_printf(m, "brightness_levels: %d\n", levels);
1445
1446 return 0;
1447}
1448
1449static int lcd_proc_open(struct inode *inode, struct file *file)
1450{
1451 return single_open(file, lcd_proc_show, pde_data(inode));
1452}
1453
1454static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1455{
1456 u32 result;
1457
1458 if (dev->tr_backlight_supported) {
1459 int ret = set_tr_backlight_status(dev, !value);
1460
1461 if (ret)
1462 return ret;
1463 if (value)
1464 value--;
1465 }
1466
1467 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1468 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1469 if (result == TOS_FAILURE)
1470 pr_err("ACPI call to set LCD Brightness failed\n");
1471 else if (result == TOS_NOT_SUPPORTED)
1472 return -ENODEV;
1473
1474 return result == TOS_SUCCESS ? 0 : -EIO;
1475}
1476
1477static int set_lcd_status(struct backlight_device *bd)
1478{
1479 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1480
1481 return set_lcd_brightness(dev, bd->props.brightness);
1482}
1483
1484static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1485 size_t count, loff_t *pos)
1486{
1487 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1488 char cmd[42];
1489 size_t len;
1490 int levels;
1491 int value;
1492
1493 len = min(count, sizeof(cmd) - 1);
1494 if (copy_from_user(cmd, buf, len))
1495 return -EFAULT;
1496 cmd[len] = '\0';
1497
1498 levels = dev->backlight_dev->props.max_brightness + 1;
1499 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1500 value < 0 && value > levels)
1501 return -EINVAL;
1502
1503 if (set_lcd_brightness(dev, value))
1504 return -EIO;
1505
1506 return count;
1507}
1508
1509static const struct proc_ops lcd_proc_ops = {
1510 .proc_open = lcd_proc_open,
1511 .proc_read = seq_read,
1512 .proc_lseek = seq_lseek,
1513 .proc_release = single_release,
1514 .proc_write = lcd_proc_write,
1515};
1516
1517/* Video-Out */
1518static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1519{
1520 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1521
1522 if (result == TOS_FAILURE)
1523 pr_err("ACPI call to get Video-Out failed\n");
1524 else if (result == TOS_NOT_SUPPORTED)
1525 return -ENODEV;
1526
1527 return result == TOS_SUCCESS ? 0 : -EIO;
1528}
1529
1530static int video_proc_show(struct seq_file *m, void *v)
1531{
1532 struct toshiba_acpi_dev *dev = m->private;
1533 int is_lcd, is_crt, is_tv;
1534 u32 value;
1535
1536 if (get_video_status(dev, &value))
1537 return -EIO;
1538
1539 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1540 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1541 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1542
1543 seq_printf(m, "lcd_out: %d\n", is_lcd);
1544 seq_printf(m, "crt_out: %d\n", is_crt);
1545 seq_printf(m, "tv_out: %d\n", is_tv);
1546
1547 return 0;
1548}
1549
1550static int video_proc_open(struct inode *inode, struct file *file)
1551{
1552 return single_open(file, video_proc_show, pde_data(inode));
1553}
1554
1555static ssize_t video_proc_write(struct file *file, const char __user *buf,
1556 size_t count, loff_t *pos)
1557{
1558 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1559 char *buffer;
1560 char *cmd;
1561 int lcd_out = -1, crt_out = -1, tv_out = -1;
1562 int remain = count;
1563 int value;
1564 int ret;
1565 u32 video_out;
1566
1567 cmd = memdup_user_nul(buf, count);
1568 if (IS_ERR(cmd))
1569 return PTR_ERR(cmd);
1570
1571 buffer = cmd;
1572
1573 /*
1574 * Scan expression. Multiple expressions may be delimited with ;
1575 * NOTE: To keep scanning simple, invalid fields are ignored.
1576 */
1577 while (remain) {
1578 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1579 lcd_out = value & 1;
1580 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1581 crt_out = value & 1;
1582 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1583 tv_out = value & 1;
1584 /* Advance to one character past the next ; */
1585 do {
1586 ++buffer;
1587 --remain;
1588 } while (remain && *(buffer - 1) != ';');
1589 }
1590
1591 kfree(cmd);
1592
1593 ret = get_video_status(dev, &video_out);
1594 if (!ret) {
1595 unsigned int new_video_out = video_out;
1596
1597 if (lcd_out != -1)
1598 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1599 if (crt_out != -1)
1600 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1601 if (tv_out != -1)
1602 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1603 /*
1604 * To avoid unnecessary video disruption, only write the new
1605 * video setting if something changed.
1606 */
1607 if (new_video_out != video_out)
1608 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1609 }
1610
1611 return ret ? -EIO : count;
1612}
1613
1614static const struct proc_ops video_proc_ops = {
1615 .proc_open = video_proc_open,
1616 .proc_read = seq_read,
1617 .proc_lseek = seq_lseek,
1618 .proc_release = single_release,
1619 .proc_write = video_proc_write,
1620};
1621
1622/* Fan status */
1623static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1624{
1625 u32 result = hci_read(dev, HCI_FAN, status);
1626
1627 if (result == TOS_FAILURE)
1628 pr_err("ACPI call to get Fan status failed\n");
1629 else if (result == TOS_NOT_SUPPORTED)
1630 return -ENODEV;
1631
1632 return result == TOS_SUCCESS ? 0 : -EIO;
1633}
1634
1635static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1636{
1637 u32 result = hci_write(dev, HCI_FAN, status);
1638
1639 if (result == TOS_FAILURE)
1640 pr_err("ACPI call to set Fan status failed\n");
1641 else if (result == TOS_NOT_SUPPORTED)
1642 return -ENODEV;
1643
1644 return result == TOS_SUCCESS ? 0 : -EIO;
1645}
1646
1647static int fan_proc_show(struct seq_file *m, void *v)
1648{
1649 struct toshiba_acpi_dev *dev = m->private;
1650 u32 value;
1651
1652 if (get_fan_status(dev, &value))
1653 return -EIO;
1654
1655 seq_printf(m, "running: %d\n", (value > 0));
1656 seq_printf(m, "force_on: %d\n", dev->force_fan);
1657
1658 return 0;
1659}
1660
1661static int fan_proc_open(struct inode *inode, struct file *file)
1662{
1663 return single_open(file, fan_proc_show, pde_data(inode));
1664}
1665
1666static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1667 size_t count, loff_t *pos)
1668{
1669 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1670 char cmd[42];
1671 size_t len;
1672 int value;
1673
1674 len = min(count, sizeof(cmd) - 1);
1675 if (copy_from_user(cmd, buf, len))
1676 return -EFAULT;
1677 cmd[len] = '\0';
1678
1679 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1680 value != 0 && value != 1)
1681 return -EINVAL;
1682
1683 if (set_fan_status(dev, value))
1684 return -EIO;
1685
1686 dev->force_fan = value;
1687
1688 return count;
1689}
1690
1691static const struct proc_ops fan_proc_ops = {
1692 .proc_open = fan_proc_open,
1693 .proc_read = seq_read,
1694 .proc_lseek = seq_lseek,
1695 .proc_release = single_release,
1696 .proc_write = fan_proc_write,
1697};
1698
1699/* Fan RPM */
1700static int get_fan_rpm(struct toshiba_acpi_dev *dev, u32 *rpm)
1701{
1702 u32 in[TCI_WORDS] = { HCI_GET, HCI_FAN_RPM, 0, 1, 0, 0 };
1703 u32 out[TCI_WORDS];
1704 acpi_status status = tci_raw(dev, in, out);
1705
1706 if (ACPI_FAILURE(status)) {
1707 pr_err("ACPI call to get Fan speed failed\n");
1708 return -EIO;
1709 }
1710
1711 if (out[0] == TOS_NOT_SUPPORTED)
1712 return -ENODEV;
1713
1714 if (out[0] == TOS_SUCCESS) {
1715 *rpm = out[2];
1716 return 0;
1717 }
1718
1719 return -EIO;
1720}
1721
1722static int keys_proc_show(struct seq_file *m, void *v)
1723{
1724 struct toshiba_acpi_dev *dev = m->private;
1725
1726 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1727 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1728
1729 return 0;
1730}
1731
1732static int keys_proc_open(struct inode *inode, struct file *file)
1733{
1734 return single_open(file, keys_proc_show, pde_data(inode));
1735}
1736
1737static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1738 size_t count, loff_t *pos)
1739{
1740 struct toshiba_acpi_dev *dev = pde_data(file_inode(file));
1741 char cmd[42];
1742 size_t len;
1743 int value;
1744
1745 len = min(count, sizeof(cmd) - 1);
1746 if (copy_from_user(cmd, buf, len))
1747 return -EFAULT;
1748 cmd[len] = '\0';
1749
1750 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1751 dev->key_event_valid = 0;
1752 else
1753 return -EINVAL;
1754
1755 return count;
1756}
1757
1758static const struct proc_ops keys_proc_ops = {
1759 .proc_open = keys_proc_open,
1760 .proc_read = seq_read,
1761 .proc_lseek = seq_lseek,
1762 .proc_release = single_release,
1763 .proc_write = keys_proc_write,
1764};
1765
1766static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1767{
1768 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1769 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1770 return 0;
1771}
1772
1773/*
1774 * Proc and module init
1775 */
1776
1777#define PROC_TOSHIBA "toshiba"
1778
1779static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1780{
1781 if (dev->backlight_dev)
1782 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1783 &lcd_proc_ops, dev);
1784 if (dev->video_supported)
1785 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1786 &video_proc_ops, dev);
1787 if (dev->fan_supported)
1788 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1789 &fan_proc_ops, dev);
1790 if (dev->hotkey_dev)
1791 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1792 &keys_proc_ops, dev);
1793 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1794 version_proc_show, dev);
1795}
1796
1797static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1798{
1799 if (dev->backlight_dev)
1800 remove_proc_entry("lcd", toshiba_proc_dir);
1801 if (dev->video_supported)
1802 remove_proc_entry("video", toshiba_proc_dir);
1803 if (dev->fan_supported)
1804 remove_proc_entry("fan", toshiba_proc_dir);
1805 if (dev->hotkey_dev)
1806 remove_proc_entry("keys", toshiba_proc_dir);
1807 remove_proc_entry("version", toshiba_proc_dir);
1808}
1809
1810static const struct backlight_ops toshiba_backlight_data = {
1811 .options = BL_CORE_SUSPENDRESUME,
1812 .get_brightness = get_lcd_brightness,
1813 .update_status = set_lcd_status,
1814};
1815
1816/* Keyboard backlight work */
1817static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1818
1819static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1820
1821/*
1822 * Sysfs files
1823 */
1824static DEVICE_STRING_ATTR_RO(version, 0444, TOSHIBA_ACPI_VERSION);
1825
1826static ssize_t fan_store(struct device *dev,
1827 struct device_attribute *attr,
1828 const char *buf, size_t count)
1829{
1830 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1831 int state;
1832 int ret;
1833
1834 ret = kstrtoint(buf, 0, &state);
1835 if (ret)
1836 return ret;
1837
1838 if (state != 0 && state != 1)
1839 return -EINVAL;
1840
1841 ret = set_fan_status(toshiba, state);
1842 if (ret)
1843 return ret;
1844
1845 return count;
1846}
1847
1848static ssize_t fan_show(struct device *dev,
1849 struct device_attribute *attr, char *buf)
1850{
1851 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1852 u32 value;
1853 int ret;
1854
1855 ret = get_fan_status(toshiba, &value);
1856 if (ret)
1857 return ret;
1858
1859 return sprintf(buf, "%d\n", value);
1860}
1861static DEVICE_ATTR_RW(fan);
1862
1863static ssize_t kbd_backlight_mode_store(struct device *dev,
1864 struct device_attribute *attr,
1865 const char *buf, size_t count)
1866{
1867 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1868 int mode;
1869 int ret;
1870
1871
1872 ret = kstrtoint(buf, 0, &mode);
1873 if (ret)
1874 return ret;
1875
1876 /* Check for supported modes depending on keyboard backlight type */
1877 if (toshiba->kbd_type == 1) {
1878 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1879 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1880 return -EINVAL;
1881 } else if (toshiba->kbd_type == 2) {
1882 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1883 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1884 mode != SCI_KBD_MODE_OFF)
1885 return -EINVAL;
1886 }
1887
1888 /*
1889 * Set the Keyboard Backlight Mode where:
1890 * Auto - KBD backlight turns off automatically in given time
1891 * FN-Z - KBD backlight "toggles" when hotkey pressed
1892 * ON - KBD backlight is always on
1893 * OFF - KBD backlight is always off
1894 */
1895
1896 /* Only make a change if the actual mode has changed */
1897 if (toshiba->kbd_mode != mode) {
1898 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1899 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1900
1901 /* OR the "base time" to the actual method format */
1902 if (toshiba->kbd_type == 1) {
1903 /* Type 1 requires the current mode */
1904 time |= toshiba->kbd_mode;
1905 } else if (toshiba->kbd_type == 2) {
1906 /* Type 2 requires the desired mode */
1907 time |= mode;
1908 }
1909
1910 ret = toshiba_kbd_illum_status_set(toshiba, time);
1911 if (ret)
1912 return ret;
1913
1914 toshiba->kbd_mode = mode;
1915 toshiba_acpi->kbd_mode = mode;
1916
1917 /*
1918 * Some laptop models with the second generation backlit
1919 * keyboard (type 2) do not generate the keyboard backlight
1920 * changed event (0x92), and thus, the driver will never update
1921 * the sysfs entries.
1922 *
1923 * The event is generated right when changing the keyboard
1924 * backlight mode and the *notify function will set the
1925 * kbd_event_generated to true.
1926 *
1927 * In case the event is not generated, schedule the keyboard
1928 * backlight work to update the sysfs entries and emulate the
1929 * event via genetlink.
1930 */
1931 if (toshiba->kbd_type == 2 &&
1932 !toshiba->kbd_event_generated)
1933 schedule_work(&kbd_bl_work);
1934 }
1935
1936 return count;
1937}
1938
1939static ssize_t kbd_backlight_mode_show(struct device *dev,
1940 struct device_attribute *attr,
1941 char *buf)
1942{
1943 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1944 u32 time;
1945
1946 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1947 return -EIO;
1948
1949 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1950}
1951static DEVICE_ATTR_RW(kbd_backlight_mode);
1952
1953static ssize_t kbd_type_show(struct device *dev,
1954 struct device_attribute *attr, char *buf)
1955{
1956 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1957
1958 return sprintf(buf, "%d\n", toshiba->kbd_type);
1959}
1960static DEVICE_ATTR_RO(kbd_type);
1961
1962static ssize_t available_kbd_modes_show(struct device *dev,
1963 struct device_attribute *attr,
1964 char *buf)
1965{
1966 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1967
1968 if (toshiba->kbd_type == 1)
1969 return sprintf(buf, "0x%x 0x%x\n",
1970 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1971
1972 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1973 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1974}
1975static DEVICE_ATTR_RO(available_kbd_modes);
1976
1977static ssize_t kbd_backlight_timeout_store(struct device *dev,
1978 struct device_attribute *attr,
1979 const char *buf, size_t count)
1980{
1981 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1982 int time;
1983 int ret;
1984
1985 ret = kstrtoint(buf, 0, &time);
1986 if (ret)
1987 return ret;
1988
1989 /* Check for supported values depending on kbd_type */
1990 if (toshiba->kbd_type == 1) {
1991 if (time < 0 || time > 60)
1992 return -EINVAL;
1993 } else if (toshiba->kbd_type == 2) {
1994 if (time < 1 || time > 60)
1995 return -EINVAL;
1996 }
1997
1998 /* Set the Keyboard Backlight Timeout */
1999
2000 /* Only make a change if the actual timeout has changed */
2001 if (toshiba->kbd_time != time) {
2002 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
2003 time = time << HCI_MISC_SHIFT;
2004 /* OR the "base time" to the actual method format */
2005 if (toshiba->kbd_type == 1)
2006 time |= SCI_KBD_MODE_FNZ;
2007 else if (toshiba->kbd_type == 2)
2008 time |= SCI_KBD_MODE_AUTO;
2009
2010 ret = toshiba_kbd_illum_status_set(toshiba, time);
2011 if (ret)
2012 return ret;
2013
2014 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
2015 }
2016
2017 return count;
2018}
2019
2020static ssize_t kbd_backlight_timeout_show(struct device *dev,
2021 struct device_attribute *attr,
2022 char *buf)
2023{
2024 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2025 u32 time;
2026
2027 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
2028 return -EIO;
2029
2030 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
2031}
2032static DEVICE_ATTR_RW(kbd_backlight_timeout);
2033
2034static ssize_t touchpad_store(struct device *dev,
2035 struct device_attribute *attr,
2036 const char *buf, size_t count)
2037{
2038 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2039 int state;
2040 int ret;
2041
2042 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
2043 ret = kstrtoint(buf, 0, &state);
2044 if (ret)
2045 return ret;
2046 if (state != 0 && state != 1)
2047 return -EINVAL;
2048
2049 ret = toshiba_touchpad_set(toshiba, state);
2050 if (ret)
2051 return ret;
2052
2053 return count;
2054}
2055
2056static ssize_t touchpad_show(struct device *dev,
2057 struct device_attribute *attr, char *buf)
2058{
2059 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2060 u32 state;
2061 int ret;
2062
2063 ret = toshiba_touchpad_get(toshiba, &state);
2064 if (ret < 0)
2065 return ret;
2066
2067 return sprintf(buf, "%i\n", state);
2068}
2069static DEVICE_ATTR_RW(touchpad);
2070
2071static ssize_t usb_sleep_charge_show(struct device *dev,
2072 struct device_attribute *attr, char *buf)
2073{
2074 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2075 u32 mode;
2076 int ret;
2077
2078 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2079 if (ret < 0)
2080 return ret;
2081
2082 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2083}
2084
2085static ssize_t usb_sleep_charge_store(struct device *dev,
2086 struct device_attribute *attr,
2087 const char *buf, size_t count)
2088{
2089 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2090 int state;
2091 u32 mode;
2092 int ret;
2093
2094 ret = kstrtoint(buf, 0, &state);
2095 if (ret)
2096 return ret;
2097 /*
2098 * Check for supported values, where:
2099 * 0 - Disabled
2100 * 1 - Alternate (Non USB conformant devices that require more power)
2101 * 2 - Auto (USB conformant devices)
2102 * 3 - Typical
2103 */
2104 if (state != 0 && state != 1 && state != 2 && state != 3)
2105 return -EINVAL;
2106
2107 /* Set the USB charging mode to internal value */
2108 mode = toshiba->usbsc_mode_base;
2109 if (state == 0)
2110 mode |= SCI_USB_CHARGE_DISABLED;
2111 else if (state == 1)
2112 mode |= SCI_USB_CHARGE_ALTERNATE;
2113 else if (state == 2)
2114 mode |= SCI_USB_CHARGE_AUTO;
2115 else if (state == 3)
2116 mode |= SCI_USB_CHARGE_TYPICAL;
2117
2118 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2119 if (ret)
2120 return ret;
2121
2122 return count;
2123}
2124static DEVICE_ATTR_RW(usb_sleep_charge);
2125
2126static ssize_t sleep_functions_on_battery_show(struct device *dev,
2127 struct device_attribute *attr,
2128 char *buf)
2129{
2130 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2131 int bat_lvl, status;
2132 u32 state;
2133 int ret;
2134 int tmp;
2135
2136 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2137 if (ret < 0)
2138 return ret;
2139
2140 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2141 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2142 status = (tmp == 0x4) ? 1 : 0;
2143 /* Determine the battery level set */
2144 bat_lvl = state >> HCI_MISC_SHIFT;
2145
2146 return sprintf(buf, "%d %d\n", status, bat_lvl);
2147}
2148
2149static ssize_t sleep_functions_on_battery_store(struct device *dev,
2150 struct device_attribute *attr,
2151 const char *buf, size_t count)
2152{
2153 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2154 u32 status;
2155 int value;
2156 int ret;
2157 int tmp;
2158
2159 ret = kstrtoint(buf, 0, &value);
2160 if (ret)
2161 return ret;
2162
2163 /*
2164 * Set the status of the function:
2165 * 0 - Disabled
2166 * 1-100 - Enabled
2167 */
2168 if (value < 0 || value > 100)
2169 return -EINVAL;
2170
2171 if (value == 0) {
2172 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2173 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2174 } else {
2175 tmp = value << HCI_MISC_SHIFT;
2176 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2177 }
2178 ret = toshiba_sleep_functions_status_set(toshiba, status);
2179 if (ret < 0)
2180 return ret;
2181
2182 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2183
2184 return count;
2185}
2186static DEVICE_ATTR_RW(sleep_functions_on_battery);
2187
2188static ssize_t usb_rapid_charge_show(struct device *dev,
2189 struct device_attribute *attr, char *buf)
2190{
2191 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2192 u32 state;
2193 int ret;
2194
2195 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2196 if (ret < 0)
2197 return ret;
2198
2199 return sprintf(buf, "%d\n", state);
2200}
2201
2202static ssize_t usb_rapid_charge_store(struct device *dev,
2203 struct device_attribute *attr,
2204 const char *buf, size_t count)
2205{
2206 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2207 int state;
2208 int ret;
2209
2210 ret = kstrtoint(buf, 0, &state);
2211 if (ret)
2212 return ret;
2213 if (state != 0 && state != 1)
2214 return -EINVAL;
2215
2216 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2217 if (ret)
2218 return ret;
2219
2220 return count;
2221}
2222static DEVICE_ATTR_RW(usb_rapid_charge);
2223
2224static ssize_t usb_sleep_music_show(struct device *dev,
2225 struct device_attribute *attr, char *buf)
2226{
2227 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2228 u32 state;
2229 int ret;
2230
2231 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2232 if (ret < 0)
2233 return ret;
2234
2235 return sprintf(buf, "%d\n", state);
2236}
2237
2238static ssize_t usb_sleep_music_store(struct device *dev,
2239 struct device_attribute *attr,
2240 const char *buf, size_t count)
2241{
2242 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2243 int state;
2244 int ret;
2245
2246 ret = kstrtoint(buf, 0, &state);
2247 if (ret)
2248 return ret;
2249 if (state != 0 && state != 1)
2250 return -EINVAL;
2251
2252 ret = toshiba_usb_sleep_music_set(toshiba, state);
2253 if (ret)
2254 return ret;
2255
2256 return count;
2257}
2258static DEVICE_ATTR_RW(usb_sleep_music);
2259
2260static ssize_t kbd_function_keys_show(struct device *dev,
2261 struct device_attribute *attr, char *buf)
2262{
2263 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2264 int mode;
2265 int ret;
2266
2267 ret = toshiba_function_keys_get(toshiba, &mode);
2268 if (ret < 0)
2269 return ret;
2270
2271 return sprintf(buf, "%d\n", mode);
2272}
2273
2274static ssize_t kbd_function_keys_store(struct device *dev,
2275 struct device_attribute *attr,
2276 const char *buf, size_t count)
2277{
2278 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2279 int mode;
2280 int ret;
2281
2282 ret = kstrtoint(buf, 0, &mode);
2283 if (ret)
2284 return ret;
2285 /*
2286 * Check for the function keys mode where:
2287 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2288 * 1 - Special functions (Opposite of the above setting)
2289 */
2290 if (mode != 0 && mode != 1)
2291 return -EINVAL;
2292
2293 ret = toshiba_function_keys_set(toshiba, mode);
2294 if (ret)
2295 return ret;
2296
2297 pr_info("Reboot for changes to KBD Function Keys to take effect");
2298
2299 return count;
2300}
2301static DEVICE_ATTR_RW(kbd_function_keys);
2302
2303static ssize_t panel_power_on_show(struct device *dev,
2304 struct device_attribute *attr, char *buf)
2305{
2306 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2307 u32 state;
2308 int ret;
2309
2310 ret = toshiba_panel_power_on_get(toshiba, &state);
2311 if (ret < 0)
2312 return ret;
2313
2314 return sprintf(buf, "%d\n", state);
2315}
2316
2317static ssize_t panel_power_on_store(struct device *dev,
2318 struct device_attribute *attr,
2319 const char *buf, size_t count)
2320{
2321 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2322 int state;
2323 int ret;
2324
2325 ret = kstrtoint(buf, 0, &state);
2326 if (ret)
2327 return ret;
2328 if (state != 0 && state != 1)
2329 return -EINVAL;
2330
2331 ret = toshiba_panel_power_on_set(toshiba, state);
2332 if (ret)
2333 return ret;
2334
2335 pr_info("Reboot for changes to Panel Power ON to take effect");
2336
2337 return count;
2338}
2339static DEVICE_ATTR_RW(panel_power_on);
2340
2341static ssize_t usb_three_show(struct device *dev,
2342 struct device_attribute *attr, char *buf)
2343{
2344 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2345 u32 state;
2346 int ret;
2347
2348 ret = toshiba_usb_three_get(toshiba, &state);
2349 if (ret < 0)
2350 return ret;
2351
2352 return sprintf(buf, "%d\n", state);
2353}
2354
2355static ssize_t usb_three_store(struct device *dev,
2356 struct device_attribute *attr,
2357 const char *buf, size_t count)
2358{
2359 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2360 int state;
2361 int ret;
2362
2363 ret = kstrtoint(buf, 0, &state);
2364 if (ret)
2365 return ret;
2366 /*
2367 * Check for USB 3 mode where:
2368 * 0 - Disabled (Acts like a USB 2 port, saving power)
2369 * 1 - Enabled
2370 */
2371 if (state != 0 && state != 1)
2372 return -EINVAL;
2373
2374 ret = toshiba_usb_three_set(toshiba, state);
2375 if (ret)
2376 return ret;
2377
2378 pr_info("Reboot for changes to USB 3 to take effect");
2379
2380 return count;
2381}
2382static DEVICE_ATTR_RW(usb_three);
2383
2384static ssize_t cooling_method_show(struct device *dev,
2385 struct device_attribute *attr, char *buf)
2386{
2387 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2388 int state;
2389 int ret;
2390
2391 ret = toshiba_cooling_method_get(toshiba, &state);
2392 if (ret < 0)
2393 return ret;
2394
2395 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2396}
2397
2398static ssize_t cooling_method_store(struct device *dev,
2399 struct device_attribute *attr,
2400 const char *buf, size_t count)
2401{
2402 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2403 int state;
2404 int ret;
2405
2406 ret = kstrtoint(buf, 0, &state);
2407 if (ret)
2408 return ret;
2409
2410 /*
2411 * Check for supported values
2412 * Depending on the laptop model, some only support these two:
2413 * 0 - Maximum Performance
2414 * 1 - Battery Optimized
2415 *
2416 * While some others support all three methods:
2417 * 0 - Maximum Performance
2418 * 1 - Performance
2419 * 2 - Battery Optimized
2420 */
2421 if (state < 0 || state > toshiba->max_cooling_method)
2422 return -EINVAL;
2423
2424 ret = toshiba_cooling_method_set(toshiba, state);
2425 if (ret)
2426 return ret;
2427
2428 return count;
2429}
2430static DEVICE_ATTR_RW(cooling_method);
2431
2432static struct attribute *toshiba_attributes[] = {
2433 &dev_attr_version.attr.attr,
2434 &dev_attr_fan.attr,
2435 &dev_attr_kbd_backlight_mode.attr,
2436 &dev_attr_kbd_type.attr,
2437 &dev_attr_available_kbd_modes.attr,
2438 &dev_attr_kbd_backlight_timeout.attr,
2439 &dev_attr_touchpad.attr,
2440 &dev_attr_usb_sleep_charge.attr,
2441 &dev_attr_sleep_functions_on_battery.attr,
2442 &dev_attr_usb_rapid_charge.attr,
2443 &dev_attr_usb_sleep_music.attr,
2444 &dev_attr_kbd_function_keys.attr,
2445 &dev_attr_panel_power_on.attr,
2446 &dev_attr_usb_three.attr,
2447 &dev_attr_cooling_method.attr,
2448 NULL,
2449};
2450
2451static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2452 struct attribute *attr, int idx)
2453{
2454 struct device *dev = kobj_to_dev(kobj);
2455 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2456 bool exists = true;
2457
2458 if (attr == &dev_attr_fan.attr)
2459 exists = (drv->fan_supported) ? true : false;
2460 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2461 exists = (drv->kbd_illum_supported) ? true : false;
2462 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2463 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2464 else if (attr == &dev_attr_touchpad.attr)
2465 exists = (drv->touchpad_supported) ? true : false;
2466 else if (attr == &dev_attr_usb_sleep_charge.attr)
2467 exists = (drv->usb_sleep_charge_supported) ? true : false;
2468 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2469 exists = (drv->usb_sleep_charge_supported) ? true : false;
2470 else if (attr == &dev_attr_usb_rapid_charge.attr)
2471 exists = (drv->usb_rapid_charge_supported) ? true : false;
2472 else if (attr == &dev_attr_usb_sleep_music.attr)
2473 exists = (drv->usb_sleep_music_supported) ? true : false;
2474 else if (attr == &dev_attr_kbd_function_keys.attr)
2475 exists = (drv->kbd_function_keys_supported) ? true : false;
2476 else if (attr == &dev_attr_panel_power_on.attr)
2477 exists = (drv->panel_power_on_supported) ? true : false;
2478 else if (attr == &dev_attr_usb_three.attr)
2479 exists = (drv->usb_three_supported) ? true : false;
2480 else if (attr == &dev_attr_cooling_method.attr)
2481 exists = (drv->cooling_method_supported) ? true : false;
2482
2483 return exists ? attr->mode : 0;
2484}
2485
2486static const struct attribute_group toshiba_attr_group = {
2487 .is_visible = toshiba_sysfs_is_visible,
2488 .attrs = toshiba_attributes,
2489};
2490
2491static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2492{
2493 /* Update the sysfs entries */
2494 if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2495 &toshiba_attr_group))
2496 pr_err("Unable to update sysfs entries\n");
2497
2498 /* Notify LED subsystem about keyboard backlight change */
2499 if (toshiba_acpi->kbd_type == 2 &&
2500 toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2501 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2502 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2503 LED_FULL : LED_OFF);
2504
2505 /* Emulate the keyboard backlight event */
2506 acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2507 dev_name(&toshiba_acpi->acpi_dev->dev),
2508 0x92, 0);
2509}
2510
2511/*
2512 * IIO device
2513 */
2514
2515enum toshiba_iio_accel_chan {
2516 AXIS_X,
2517 AXIS_Y,
2518 AXIS_Z
2519};
2520
2521static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2522{
2523 u32 xyval, zval;
2524 int ret;
2525
2526 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2527 if (ret < 0)
2528 return ret;
2529
2530 switch (chan) {
2531 case AXIS_X:
2532 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2533 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2534 case AXIS_Y:
2535 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2536 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2537 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2538 case AXIS_Z:
2539 return zval & HCI_ACCEL_DIRECTION_MASK ?
2540 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2541 }
2542
2543 return ret;
2544}
2545
2546static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2547 struct iio_chan_spec const *chan,
2548 int *val, int *val2, long mask)
2549{
2550 int ret;
2551
2552 switch (mask) {
2553 case IIO_CHAN_INFO_RAW:
2554 ret = toshiba_iio_accel_get_axis(chan->channel);
2555 if (ret == -EIO || ret == -ENODEV)
2556 return ret;
2557
2558 *val = ret;
2559
2560 return IIO_VAL_INT;
2561 }
2562
2563 return -EINVAL;
2564}
2565
2566#define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2567 .type = IIO_ACCEL, \
2568 .modified = 1, \
2569 .channel = chan, \
2570 .channel2 = IIO_MOD_##axis, \
2571 .output = 1, \
2572 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2573}
2574
2575static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2576 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2577 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2578 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2579};
2580
2581static const struct iio_info toshiba_iio_accel_info = {
2582 .read_raw = &toshiba_iio_accel_read_raw,
2583};
2584
2585/*
2586 * Misc device
2587 */
2588static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2589{
2590 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2591 regs->edx, regs->esi, regs->edi };
2592 u32 out[TCI_WORDS];
2593 acpi_status status;
2594
2595 status = tci_raw(toshiba_acpi, in, out);
2596 if (ACPI_FAILURE(status)) {
2597 pr_err("ACPI call to query SMM registers failed\n");
2598 return -EIO;
2599 }
2600
2601 /* Fillout the SMM struct with the TCI call results */
2602 regs->eax = out[0];
2603 regs->ebx = out[1];
2604 regs->ecx = out[2];
2605 regs->edx = out[3];
2606 regs->esi = out[4];
2607 regs->edi = out[5];
2608
2609 return 0;
2610}
2611
2612static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2613 unsigned long arg)
2614{
2615 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2616 SMMRegisters regs;
2617 int ret;
2618
2619 if (!argp)
2620 return -EINVAL;
2621
2622 switch (cmd) {
2623 case TOSH_SMM:
2624 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2625 return -EFAULT;
2626 ret = toshiba_acpi_smm_bridge(®s);
2627 if (ret)
2628 return ret;
2629 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2630 return -EFAULT;
2631 break;
2632 case TOSHIBA_ACPI_SCI:
2633 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2634 return -EFAULT;
2635 /* Ensure we are being called with a SCI_{GET, SET} register */
2636 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2637 return -EINVAL;
2638 if (!sci_open(toshiba_acpi))
2639 return -EIO;
2640 ret = toshiba_acpi_smm_bridge(®s);
2641 sci_close(toshiba_acpi);
2642 if (ret)
2643 return ret;
2644 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2645 return -EFAULT;
2646 break;
2647 default:
2648 return -EINVAL;
2649 }
2650
2651 return 0;
2652}
2653
2654static const struct file_operations toshiba_acpi_fops = {
2655 .owner = THIS_MODULE,
2656 .unlocked_ioctl = toshiba_acpi_ioctl,
2657 .llseek = noop_llseek,
2658};
2659
2660/*
2661 * WWAN RFKill handlers
2662 */
2663static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2664{
2665 struct toshiba_acpi_dev *dev = data;
2666 int ret;
2667
2668 ret = toshiba_wireless_status(dev);
2669 if (ret)
2670 return ret;
2671
2672 if (!dev->killswitch)
2673 return 0;
2674
2675 return toshiba_wwan_set(dev, !blocked);
2676}
2677
2678static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2679{
2680 struct toshiba_acpi_dev *dev = data;
2681
2682 if (toshiba_wireless_status(dev))
2683 return;
2684
2685 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2686}
2687
2688static const struct rfkill_ops wwan_rfk_ops = {
2689 .set_block = toshiba_acpi_wwan_set_block,
2690 .poll = toshiba_acpi_wwan_poll,
2691};
2692
2693static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2694{
2695 int ret = toshiba_wireless_status(dev);
2696
2697 if (ret)
2698 return ret;
2699
2700 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2701 &dev->acpi_dev->dev,
2702 RFKILL_TYPE_WWAN,
2703 &wwan_rfk_ops,
2704 dev);
2705 if (!dev->wwan_rfk) {
2706 pr_err("Unable to allocate WWAN rfkill device\n");
2707 return -ENOMEM;
2708 }
2709
2710 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2711
2712 ret = rfkill_register(dev->wwan_rfk);
2713 if (ret) {
2714 pr_err("Unable to register WWAN rfkill device\n");
2715 rfkill_destroy(dev->wwan_rfk);
2716 }
2717
2718 return ret;
2719}
2720
2721/*
2722 * Hotkeys
2723 */
2724static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2725{
2726 acpi_status status;
2727 u32 result;
2728
2729 status = acpi_evaluate_object(dev->acpi_dev->handle,
2730 "ENAB", NULL, NULL);
2731 if (ACPI_FAILURE(status))
2732 return -ENODEV;
2733
2734 /*
2735 * Enable quickstart buttons if supported.
2736 *
2737 * Enable the "Special Functions" mode only if they are
2738 * supported and if they are activated.
2739 */
2740 if (hci_hotkey_quickstart)
2741 result = hci_write(dev, HCI_HOTKEY_EVENT,
2742 HCI_HOTKEY_ENABLE_QUICKSTART);
2743 else if (dev->kbd_function_keys_supported && dev->special_functions)
2744 result = hci_write(dev, HCI_HOTKEY_EVENT,
2745 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2746 else
2747 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2748
2749 if (result == TOS_FAILURE)
2750 return -EIO;
2751 else if (result == TOS_NOT_SUPPORTED)
2752 return -ENODEV;
2753
2754 return 0;
2755}
2756
2757static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2758 struct serio *port)
2759{
2760 if (str & I8042_STR_AUXDATA)
2761 return false;
2762
2763 if (unlikely(data == 0xe0))
2764 return false;
2765
2766 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2767 schedule_work(&toshiba_acpi->hotkey_work);
2768 return true;
2769 }
2770
2771 return false;
2772}
2773
2774static void toshiba_acpi_hotkey_work(struct work_struct *work)
2775{
2776 acpi_handle ec_handle = ec_get_handle();
2777 acpi_status status;
2778
2779 if (!ec_handle)
2780 return;
2781
2782 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2783 if (ACPI_FAILURE(status))
2784 pr_err("ACPI NTFY method execution failed\n");
2785}
2786
2787/*
2788 * Returns hotkey scancode, or < 0 on failure.
2789 */
2790static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2791{
2792 unsigned long long value;
2793 acpi_status status;
2794
2795 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2796 NULL, &value);
2797 if (ACPI_FAILURE(status)) {
2798 pr_err("ACPI INFO method execution failed\n");
2799 return -EIO;
2800 }
2801
2802 return value;
2803}
2804
2805static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2806 int scancode)
2807{
2808 if (scancode == 0x100)
2809 return;
2810
2811 /* Act on key press; ignore key release */
2812 if (scancode & 0x80)
2813 return;
2814
2815 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2816 pr_info("Unknown key %x\n", scancode);
2817}
2818
2819static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2820{
2821 if (dev->info_supported) {
2822 int scancode = toshiba_acpi_query_hotkey(dev);
2823
2824 if (scancode < 0) {
2825 pr_err("Failed to query hotkey event\n");
2826 } else if (scancode != 0) {
2827 toshiba_acpi_report_hotkey(dev, scancode);
2828 dev->key_event_valid = 1;
2829 dev->last_key_event = scancode;
2830 }
2831 } else if (dev->system_event_supported) {
2832 u32 result;
2833 u32 value;
2834 int retries = 3;
2835
2836 do {
2837 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2838 switch (result) {
2839 case TOS_SUCCESS:
2840 toshiba_acpi_report_hotkey(dev, (int)value);
2841 dev->key_event_valid = 1;
2842 dev->last_key_event = value;
2843 break;
2844 case TOS_NOT_SUPPORTED:
2845 /*
2846 * This is a workaround for an unresolved
2847 * issue on some machines where system events
2848 * sporadically become disabled.
2849 */
2850 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2851 if (result == TOS_SUCCESS)
2852 pr_notice("Re-enabled hotkeys\n");
2853 fallthrough;
2854 default:
2855 retries--;
2856 break;
2857 }
2858 } while (retries && result != TOS_FIFO_EMPTY);
2859 }
2860}
2861
2862static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2863{
2864 const struct key_entry *keymap = toshiba_acpi_keymap;
2865 acpi_handle ec_handle;
2866 int error;
2867
2868 if (disable_hotkeys) {
2869 pr_info("Hotkeys disabled by module parameter\n");
2870 return 0;
2871 }
2872
2873 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2874 pr_info("WMI event detected, hotkeys will not be monitored\n");
2875 return 0;
2876 }
2877
2878 error = toshiba_acpi_enable_hotkeys(dev);
2879 if (error)
2880 return error;
2881
2882 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2883 pr_notice("Unable to query Hotkey Event Type\n");
2884
2885 dev->hotkey_dev = input_allocate_device();
2886 if (!dev->hotkey_dev)
2887 return -ENOMEM;
2888
2889 dev->hotkey_dev->name = "Toshiba input device";
2890 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2891 dev->hotkey_dev->id.bustype = BUS_HOST;
2892 dev->hotkey_dev->dev.parent = &dev->acpi_dev->dev;
2893
2894 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2895 !dev->kbd_function_keys_supported)
2896 keymap = toshiba_acpi_keymap;
2897 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2898 dev->kbd_function_keys_supported)
2899 keymap = toshiba_acpi_alt_keymap;
2900 else
2901 pr_info("Unknown event type received %x\n",
2902 dev->hotkey_event_type);
2903 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2904 if (error)
2905 goto err_free_dev;
2906
2907 /*
2908 * For some machines the SCI responsible for providing hotkey
2909 * notification doesn't fire. We can trigger the notification
2910 * whenever the Fn key is pressed using the NTFY method, if
2911 * supported, so if it's present set up an i8042 key filter
2912 * for this purpose.
2913 */
2914 ec_handle = ec_get_handle();
2915 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2916 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2917
2918 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2919 if (error) {
2920 pr_err("Error installing key filter\n");
2921 goto err_free_dev;
2922 }
2923
2924 dev->ntfy_supported = 1;
2925 }
2926
2927 /*
2928 * Determine hotkey query interface. Prefer using the INFO
2929 * method when it is available.
2930 */
2931 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2932 dev->info_supported = 1;
2933 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2934 dev->system_event_supported = 1;
2935
2936 if (!dev->info_supported && !dev->system_event_supported) {
2937 pr_warn("No hotkey query interface found\n");
2938 error = -EINVAL;
2939 goto err_remove_filter;
2940 }
2941
2942 error = input_register_device(dev->hotkey_dev);
2943 if (error) {
2944 pr_info("Unable to register input device\n");
2945 goto err_remove_filter;
2946 }
2947
2948 return 0;
2949
2950 err_remove_filter:
2951 if (dev->ntfy_supported)
2952 i8042_remove_filter(toshiba_acpi_i8042_filter);
2953 err_free_dev:
2954 input_free_device(dev->hotkey_dev);
2955 dev->hotkey_dev = NULL;
2956 return error;
2957}
2958
2959static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2960{
2961 struct backlight_properties props;
2962 int brightness;
2963 int ret;
2964
2965 /*
2966 * Some machines don't support the backlight methods at all, and
2967 * others support it read-only. Either of these is pretty useless,
2968 * so only register the backlight device if the backlight method
2969 * supports both reads and writes.
2970 */
2971 brightness = __get_lcd_brightness(dev);
2972 if (brightness < 0)
2973 return 0;
2974 /*
2975 * If transflective backlight is supported and the brightness is zero
2976 * (lowest brightness level), the set_lcd_brightness function will
2977 * activate the transflective backlight, making the LCD appear to be
2978 * turned off, simply increment the brightness level to avoid that.
2979 */
2980 if (dev->tr_backlight_supported && brightness == 0)
2981 brightness++;
2982 ret = set_lcd_brightness(dev, brightness);
2983 if (ret) {
2984 pr_debug("Backlight method is read-only, disabling backlight support\n");
2985 return 0;
2986 }
2987
2988 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2989 return 0;
2990
2991 memset(&props, 0, sizeof(props));
2992 props.type = BACKLIGHT_PLATFORM;
2993 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2994
2995 /* Adding an extra level and having 0 change to transflective mode */
2996 if (dev->tr_backlight_supported)
2997 props.max_brightness++;
2998
2999 dev->backlight_dev = backlight_device_register("toshiba",
3000 &dev->acpi_dev->dev,
3001 dev,
3002 &toshiba_backlight_data,
3003 &props);
3004 if (IS_ERR(dev->backlight_dev)) {
3005 ret = PTR_ERR(dev->backlight_dev);
3006 pr_err("Could not register toshiba backlight device\n");
3007 dev->backlight_dev = NULL;
3008 return ret;
3009 }
3010
3011 dev->backlight_dev->props.brightness = brightness;
3012 return 0;
3013}
3014
3015/* HWMON support for fan */
3016#if IS_ENABLED(CONFIG_HWMON)
3017static umode_t toshiba_acpi_hwmon_is_visible(const void *drvdata,
3018 enum hwmon_sensor_types type,
3019 u32 attr, int channel)
3020{
3021 return 0444;
3022}
3023
3024static int toshiba_acpi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
3025 u32 attr, int channel, long *val)
3026{
3027 /*
3028 * There is only a single channel and single attribute (for the
3029 * fan) at this point.
3030 * This can be replaced with more advanced logic in the future,
3031 * should the need arise.
3032 */
3033 if (type == hwmon_fan && channel == 0 && attr == hwmon_fan_input) {
3034 u32 value;
3035 int ret;
3036
3037 ret = get_fan_rpm(toshiba_acpi, &value);
3038 if (ret)
3039 return ret;
3040
3041 *val = value;
3042 return 0;
3043 }
3044 return -EOPNOTSUPP;
3045}
3046
3047static const struct hwmon_channel_info * const toshiba_acpi_hwmon_info[] = {
3048 HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT),
3049 NULL
3050};
3051
3052static const struct hwmon_ops toshiba_acpi_hwmon_ops = {
3053 .is_visible = toshiba_acpi_hwmon_is_visible,
3054 .read = toshiba_acpi_hwmon_read,
3055};
3056
3057static const struct hwmon_chip_info toshiba_acpi_hwmon_chip_info = {
3058 .ops = &toshiba_acpi_hwmon_ops,
3059 .info = toshiba_acpi_hwmon_info,
3060};
3061#endif
3062
3063/* ACPI battery hooking */
3064static ssize_t charge_control_end_threshold_show(struct device *device,
3065 struct device_attribute *attr,
3066 char *buf)
3067{
3068 u32 state;
3069 int status;
3070
3071 if (toshiba_acpi == NULL) {
3072 pr_err("Toshiba ACPI object invalid\n");
3073 return -ENODEV;
3074 }
3075
3076 status = toshiba_battery_charge_mode_get(toshiba_acpi, &state);
3077
3078 if (status != 0)
3079 return status;
3080
3081 if (state == 1)
3082 return sprintf(buf, "80\n");
3083 else
3084 return sprintf(buf, "100\n");
3085}
3086
3087static ssize_t charge_control_end_threshold_store(struct device *dev,
3088 struct device_attribute *attr,
3089 const char *buf,
3090 size_t count)
3091{
3092 u32 value;
3093 int rval;
3094
3095 if (toshiba_acpi == NULL) {
3096 pr_err("Toshiba ACPI object invalid\n");
3097 return -ENODEV;
3098 }
3099
3100 rval = kstrtou32(buf, 10, &value);
3101 if (rval)
3102 return rval;
3103
3104 if (value < 1 || value > 100)
3105 return -EINVAL;
3106 rval = toshiba_battery_charge_mode_set(toshiba_acpi,
3107 (value < 90) ? 1 : 0);
3108 if (rval < 0)
3109 return rval;
3110 else
3111 return count;
3112}
3113
3114static DEVICE_ATTR_RW(charge_control_end_threshold);
3115
3116static struct attribute *toshiba_acpi_battery_attrs[] = {
3117 &dev_attr_charge_control_end_threshold.attr,
3118 NULL,
3119};
3120
3121ATTRIBUTE_GROUPS(toshiba_acpi_battery);
3122
3123static int toshiba_acpi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
3124{
3125 if (toshiba_acpi == NULL) {
3126 pr_err("Init order issue\n");
3127 return -ENODEV;
3128 }
3129 if (!toshiba_acpi->battery_charge_mode_supported)
3130 return -ENODEV;
3131 if (device_add_groups(&battery->dev, toshiba_acpi_battery_groups))
3132 return -ENODEV;
3133 return 0;
3134}
3135
3136static int toshiba_acpi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
3137{
3138 device_remove_groups(&battery->dev, toshiba_acpi_battery_groups);
3139 return 0;
3140}
3141
3142static struct acpi_battery_hook battery_hook = {
3143 .add_battery = toshiba_acpi_battery_add,
3144 .remove_battery = toshiba_acpi_battery_remove,
3145 .name = "Toshiba Battery Extension",
3146};
3147
3148static void print_supported_features(struct toshiba_acpi_dev *dev)
3149{
3150 pr_info("Supported laptop features:");
3151
3152 if (dev->hotkey_dev)
3153 pr_cont(" hotkeys");
3154 if (dev->backlight_dev)
3155 pr_cont(" backlight");
3156 if (dev->video_supported)
3157 pr_cont(" video-out");
3158 if (dev->fan_supported)
3159 pr_cont(" fan");
3160 if (dev->fan_rpm_supported)
3161 pr_cont(" fan-rpm");
3162 if (dev->tr_backlight_supported)
3163 pr_cont(" transflective-backlight");
3164 if (dev->illumination_supported)
3165 pr_cont(" illumination");
3166 if (dev->kbd_illum_supported)
3167 pr_cont(" keyboard-backlight");
3168 if (dev->touchpad_supported)
3169 pr_cont(" touchpad");
3170 if (dev->eco_supported)
3171 pr_cont(" eco-led");
3172 if (dev->accelerometer_supported)
3173 pr_cont(" accelerometer-axes");
3174 if (dev->usb_sleep_charge_supported)
3175 pr_cont(" usb-sleep-charge");
3176 if (dev->usb_rapid_charge_supported)
3177 pr_cont(" usb-rapid-charge");
3178 if (dev->usb_sleep_music_supported)
3179 pr_cont(" usb-sleep-music");
3180 if (dev->kbd_function_keys_supported)
3181 pr_cont(" special-function-keys");
3182 if (dev->panel_power_on_supported)
3183 pr_cont(" panel-power-on");
3184 if (dev->usb_three_supported)
3185 pr_cont(" usb3");
3186 if (dev->wwan_supported)
3187 pr_cont(" wwan");
3188 if (dev->cooling_method_supported)
3189 pr_cont(" cooling-method");
3190 if (dev->battery_charge_mode_supported)
3191 pr_cont(" battery-charge-mode");
3192
3193 pr_cont("\n");
3194}
3195
3196static void toshiba_acpi_remove(struct acpi_device *acpi_dev)
3197{
3198 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3199
3200 misc_deregister(&dev->miscdev);
3201
3202 remove_toshiba_proc_entries(dev);
3203
3204#if IS_ENABLED(CONFIG_HWMON)
3205 if (dev->hwmon_device)
3206 hwmon_device_unregister(dev->hwmon_device);
3207#endif
3208
3209 if (dev->accelerometer_supported && dev->indio_dev) {
3210 iio_device_unregister(dev->indio_dev);
3211 iio_device_free(dev->indio_dev);
3212 }
3213
3214 if (dev->sysfs_created)
3215 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3216 &toshiba_attr_group);
3217
3218 if (dev->ntfy_supported) {
3219 i8042_remove_filter(toshiba_acpi_i8042_filter);
3220 cancel_work_sync(&dev->hotkey_work);
3221 }
3222
3223 if (dev->hotkey_dev)
3224 input_unregister_device(dev->hotkey_dev);
3225
3226 backlight_device_unregister(dev->backlight_dev);
3227
3228 led_classdev_unregister(&dev->led_dev);
3229 led_classdev_unregister(&dev->kbd_led);
3230 led_classdev_unregister(&dev->eco_led);
3231
3232 if (dev->wwan_rfk) {
3233 rfkill_unregister(dev->wwan_rfk);
3234 rfkill_destroy(dev->wwan_rfk);
3235 }
3236
3237 if (dev->battery_charge_mode_supported)
3238 battery_hook_unregister(&battery_hook);
3239
3240 if (toshiba_acpi)
3241 toshiba_acpi = NULL;
3242
3243 kfree(dev);
3244}
3245
3246static const char *find_hci_method(acpi_handle handle)
3247{
3248 if (acpi_has_method(handle, "GHCI"))
3249 return "GHCI";
3250
3251 if (acpi_has_method(handle, "SPFC"))
3252 return "SPFC";
3253
3254 return NULL;
3255}
3256
3257/*
3258 * Some Toshibas have a broken acpi-video interface for brightness control,
3259 * these are quirked in drivers/acpi/video_detect.c to use the GPU native
3260 * (/sys/class/backlight/intel_backlight) instead.
3261 * But these need a HCI_SET call to actually turn the panel back on at resume,
3262 * without this call the screen stays black at resume.
3263 * Either HCI_LCD_BRIGHTNESS (used by acpi_video's _BCM) or HCI_PANEL_POWER_ON
3264 * works. toshiba_acpi_resume() uses HCI_PANEL_POWER_ON to avoid changing
3265 * the configured brightness level.
3266 */
3267#define QUIRK_TURN_ON_PANEL_ON_RESUME BIT(0)
3268/*
3269 * Some Toshibas use "quickstart" keys. On these, HCI_HOTKEY_EVENT must use
3270 * the value HCI_HOTKEY_ENABLE_QUICKSTART.
3271 */
3272#define QUIRK_HCI_HOTKEY_QUICKSTART BIT(1)
3273
3274static const struct dmi_system_id toshiba_dmi_quirks[] __initconst = {
3275 {
3276 /* Toshiba Portégé R700 */
3277 /* https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3278 .matches = {
3279 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3280 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE R700"),
3281 },
3282 .driver_data = (void *)QUIRK_TURN_ON_PANEL_ON_RESUME,
3283 },
3284 {
3285 /* Toshiba Satellite/Portégé R830 */
3286 /* Portégé: https://bugs.freedesktop.org/show_bug.cgi?id=82634 */
3287 /* Satellite: https://bugzilla.kernel.org/show_bug.cgi?id=21012 */
3288 .matches = {
3289 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3290 DMI_MATCH(DMI_PRODUCT_NAME, "R830"),
3291 },
3292 .driver_data = (void *)QUIRK_TURN_ON_PANEL_ON_RESUME,
3293 },
3294 {
3295 /* Toshiba Satellite/Portégé Z830 */
3296 .matches = {
3297 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
3298 DMI_MATCH(DMI_PRODUCT_NAME, "Z830"),
3299 },
3300 .driver_data = (void *)(QUIRK_TURN_ON_PANEL_ON_RESUME | QUIRK_HCI_HOTKEY_QUICKSTART),
3301 },
3302 { }
3303};
3304
3305static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3306{
3307 struct toshiba_acpi_dev *dev;
3308 const char *hci_method;
3309 u32 dummy;
3310 int ret = 0;
3311
3312 if (toshiba_acpi)
3313 return -EBUSY;
3314
3315 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3316 TOSHIBA_ACPI_VERSION);
3317
3318 hci_method = find_hci_method(acpi_dev->handle);
3319 if (!hci_method) {
3320 pr_err("HCI interface not found\n");
3321 return -ENODEV;
3322 }
3323
3324 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3325 if (!dev)
3326 return -ENOMEM;
3327 dev->acpi_dev = acpi_dev;
3328 dev->method_hci = hci_method;
3329 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3330 dev->miscdev.name = "toshiba_acpi";
3331 dev->miscdev.fops = &toshiba_acpi_fops;
3332
3333 ret = misc_register(&dev->miscdev);
3334 if (ret) {
3335 pr_err("Failed to register miscdevice\n");
3336 kfree(dev);
3337 return ret;
3338 }
3339
3340 acpi_dev->driver_data = dev;
3341 dev_set_drvdata(&acpi_dev->dev, dev);
3342
3343 /* Query the BIOS for supported features */
3344
3345 /*
3346 * The "Special Functions" are always supported by the laptops
3347 * with the new keyboard layout, query for its presence to help
3348 * determine the keymap layout to use.
3349 */
3350 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3351 dev->kbd_function_keys_supported = !ret;
3352
3353 dev->hotkey_event_type = 0;
3354 if (toshiba_acpi_setup_keyboard(dev))
3355 pr_info("Unable to activate hotkeys\n");
3356
3357 /* Determine whether or not BIOS supports transflective backlight */
3358 ret = get_tr_backlight_status(dev, &dummy);
3359 dev->tr_backlight_supported = !ret;
3360
3361 ret = toshiba_acpi_setup_backlight(dev);
3362 if (ret)
3363 goto error;
3364
3365 toshiba_illumination_available(dev);
3366 if (dev->illumination_supported) {
3367 dev->led_dev.name = "toshiba::illumination";
3368 dev->led_dev.max_brightness = 1;
3369 dev->led_dev.brightness_set = toshiba_illumination_set;
3370 dev->led_dev.brightness_get = toshiba_illumination_get;
3371 led_classdev_register(&acpi_dev->dev, &dev->led_dev);
3372 }
3373
3374 toshiba_eco_mode_available(dev);
3375 if (dev->eco_supported) {
3376 dev->eco_led.name = "toshiba::eco_mode";
3377 dev->eco_led.max_brightness = 1;
3378 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3379 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3380 led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led);
3381 }
3382
3383 toshiba_kbd_illum_available(dev);
3384 /*
3385 * Only register the LED if KBD illumination is supported
3386 * and the keyboard backlight operation mode is set to FN-Z
3387 * or we detect a second gen keyboard backlight
3388 */
3389 if (dev->kbd_illum_supported &&
3390 (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3391 dev->kbd_led.name = "toshiba::kbd_backlight";
3392 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3393 dev->kbd_led.max_brightness = 1;
3394 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3395 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3396 led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led);
3397 }
3398
3399 ret = toshiba_touchpad_get(dev, &dummy);
3400 dev->touchpad_supported = !ret;
3401
3402 toshiba_accelerometer_available(dev);
3403 if (dev->accelerometer_supported) {
3404 dev->indio_dev = iio_device_alloc(&acpi_dev->dev, sizeof(*dev));
3405 if (!dev->indio_dev) {
3406 pr_err("Unable to allocate iio device\n");
3407 goto iio_error;
3408 }
3409
3410 pr_info("Registering Toshiba accelerometer iio device\n");
3411
3412 dev->indio_dev->info = &toshiba_iio_accel_info;
3413 dev->indio_dev->name = "Toshiba accelerometer";
3414 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3415 dev->indio_dev->channels = toshiba_iio_accel_channels;
3416 dev->indio_dev->num_channels =
3417 ARRAY_SIZE(toshiba_iio_accel_channels);
3418
3419 ret = iio_device_register(dev->indio_dev);
3420 if (ret < 0) {
3421 pr_err("Unable to register iio device\n");
3422 iio_device_free(dev->indio_dev);
3423 }
3424 }
3425iio_error:
3426
3427 toshiba_usb_sleep_charge_available(dev);
3428
3429 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3430 dev->usb_rapid_charge_supported = !ret;
3431
3432 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3433 dev->usb_sleep_music_supported = !ret;
3434
3435 ret = toshiba_panel_power_on_get(dev, &dummy);
3436 dev->panel_power_on_supported = !ret;
3437
3438 ret = toshiba_usb_three_get(dev, &dummy);
3439 dev->usb_three_supported = !ret;
3440
3441 ret = get_video_status(dev, &dummy);
3442 dev->video_supported = !ret;
3443
3444 ret = get_fan_status(dev, &dummy);
3445 dev->fan_supported = !ret;
3446
3447 ret = get_fan_rpm(dev, &dummy);
3448 dev->fan_rpm_supported = !ret;
3449
3450#if IS_ENABLED(CONFIG_HWMON)
3451 if (dev->fan_rpm_supported) {
3452 dev->hwmon_device = hwmon_device_register_with_info(
3453 &dev->acpi_dev->dev, "toshiba_acpi_sensors", NULL,
3454 &toshiba_acpi_hwmon_chip_info, NULL);
3455 if (IS_ERR(dev->hwmon_device)) {
3456 dev->hwmon_device = NULL;
3457 pr_warn("unable to register hwmon device, skipping\n");
3458 }
3459 }
3460#endif
3461
3462 toshiba_wwan_available(dev);
3463 if (dev->wwan_supported)
3464 toshiba_acpi_setup_wwan_rfkill(dev);
3465
3466 toshiba_cooling_method_available(dev);
3467
3468 toshiba_battery_charge_mode_available(dev);
3469
3470 print_supported_features(dev);
3471
3472 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3473 &toshiba_attr_group);
3474 if (ret) {
3475 dev->sysfs_created = 0;
3476 goto error;
3477 }
3478 dev->sysfs_created = !ret;
3479
3480 create_toshiba_proc_entries(dev);
3481
3482 toshiba_acpi = dev;
3483
3484 /*
3485 * As the battery hook relies on the static variable toshiba_acpi being
3486 * set, this must be done after toshiba_acpi is assigned.
3487 */
3488 if (dev->battery_charge_mode_supported)
3489 battery_hook_register(&battery_hook);
3490
3491 return 0;
3492
3493error:
3494 toshiba_acpi_remove(acpi_dev);
3495 return ret;
3496}
3497
3498static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3499{
3500 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3501
3502 switch (event) {
3503 case 0x80: /* Hotkeys and some system events */
3504 /*
3505 * Machines with this WMI GUID aren't supported due to bugs in
3506 * their AML.
3507 *
3508 * Return silently to avoid triggering a netlink event.
3509 */
3510 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3511 return;
3512 toshiba_acpi_process_hotkeys(dev);
3513 break;
3514 case 0x81: /* Dock events */
3515 case 0x82:
3516 case 0x83:
3517 pr_info("Dock event received %x\n", event);
3518 break;
3519 case 0x88: /* Thermal events */
3520 pr_info("Thermal event received\n");
3521 break;
3522 case 0x8f: /* LID closed */
3523 case 0x90: /* LID is closed and Dock has been ejected */
3524 break;
3525 case 0x8c: /* SATA power events */
3526 case 0x8b:
3527 pr_info("SATA power event received %x\n", event);
3528 break;
3529 case 0x92: /* Keyboard backlight mode changed */
3530 dev->kbd_event_generated = true;
3531 /* Update sysfs entries */
3532 if (sysfs_update_group(&acpi_dev->dev.kobj,
3533 &toshiba_attr_group))
3534 pr_err("Unable to update sysfs entries\n");
3535 /* Notify LED subsystem about keyboard backlight change */
3536 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3537 led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3538 (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3539 LED_FULL : LED_OFF);
3540 break;
3541 case 0x8e: /* Power button pressed */
3542 break;
3543 case 0x85: /* Unknown */
3544 case 0x8d: /* Unknown */
3545 case 0x94: /* Unknown */
3546 case 0x95: /* Unknown */
3547 default:
3548 pr_info("Unknown event received %x\n", event);
3549 break;
3550 }
3551
3552 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3553 dev_name(&acpi_dev->dev),
3554 event, (event == 0x80) ?
3555 dev->last_key_event : 0);
3556}
3557
3558#ifdef CONFIG_PM_SLEEP
3559static int toshiba_acpi_suspend(struct device *device)
3560{
3561 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3562
3563 if (dev->hotkey_dev) {
3564 u32 result;
3565
3566 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3567 if (result != TOS_SUCCESS)
3568 pr_info("Unable to disable hotkeys\n");
3569 }
3570
3571 return 0;
3572}
3573
3574static int toshiba_acpi_resume(struct device *device)
3575{
3576 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3577
3578 if (dev->hotkey_dev) {
3579 if (toshiba_acpi_enable_hotkeys(dev))
3580 pr_info("Unable to re-enable hotkeys\n");
3581 }
3582
3583 if (dev->wwan_rfk) {
3584 if (!toshiba_wireless_status(dev))
3585 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3586 }
3587
3588 if (turn_on_panel_on_resume)
3589 hci_write(dev, HCI_PANEL_POWER_ON, 1);
3590
3591 return 0;
3592}
3593#endif
3594
3595static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3596 toshiba_acpi_suspend, toshiba_acpi_resume);
3597
3598static struct acpi_driver toshiba_acpi_driver = {
3599 .name = "Toshiba ACPI driver",
3600 .ids = toshiba_device_ids,
3601 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3602 .ops = {
3603 .add = toshiba_acpi_add,
3604 .remove = toshiba_acpi_remove,
3605 .notify = toshiba_acpi_notify,
3606 },
3607 .drv.pm = &toshiba_acpi_pm,
3608};
3609
3610static void __init toshiba_dmi_init(void)
3611{
3612 const struct dmi_system_id *dmi_id;
3613 long quirks = 0;
3614
3615 dmi_id = dmi_first_match(toshiba_dmi_quirks);
3616 if (dmi_id)
3617 quirks = (long)dmi_id->driver_data;
3618
3619 if (turn_on_panel_on_resume == -1)
3620 turn_on_panel_on_resume = !!(quirks & QUIRK_TURN_ON_PANEL_ON_RESUME);
3621
3622 if (hci_hotkey_quickstart == -1)
3623 hci_hotkey_quickstart = !!(quirks & QUIRK_HCI_HOTKEY_QUICKSTART);
3624}
3625
3626static int __init toshiba_acpi_init(void)
3627{
3628 int ret;
3629
3630 toshiba_dmi_init();
3631 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3632 if (!toshiba_proc_dir) {
3633 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3634 return -ENODEV;
3635 }
3636
3637 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3638 if (ret) {
3639 pr_err("Failed to register ACPI driver: %d\n", ret);
3640 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3641 }
3642
3643 return ret;
3644}
3645
3646static void __exit toshiba_acpi_exit(void)
3647{
3648 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3649 if (toshiba_proc_dir)
3650 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3651}
3652
3653module_init(toshiba_acpi_init);
3654module_exit(toshiba_acpi_exit);