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1/*
2 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
3 *
4 *
5 * Copyright (C) 2002-2004 John Belmonte
6 * Copyright (C) 2008 Philip Langdale
7 * Copyright (C) 2010 Pierre Ducroquet
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 *
24 * The devolpment page for this driver is located at
25 * http://memebeam.org/toys/ToshibaAcpiDriver.
26 *
27 * Credits:
28 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
29 * engineering the Windows drivers
30 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
31 * Rob Miller - TV out and hotkeys help
32 *
33 *
34 * TODO
35 *
36 */
37
38#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
39
40#define TOSHIBA_ACPI_VERSION "0.19"
41#define PROC_INTERFACE_VERSION 1
42
43#include <linux/kernel.h>
44#include <linux/module.h>
45#include <linux/init.h>
46#include <linux/types.h>
47#include <linux/proc_fs.h>
48#include <linux/seq_file.h>
49#include <linux/backlight.h>
50#include <linux/platform_device.h>
51#include <linux/rfkill.h>
52#include <linux/input.h>
53#include <linux/input/sparse-keymap.h>
54#include <linux/leds.h>
55#include <linux/slab.h>
56
57#include <asm/uaccess.h>
58
59#include <acpi/acpi_drivers.h>
60
61MODULE_AUTHOR("John Belmonte");
62MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
63MODULE_LICENSE("GPL");
64
65/* Toshiba ACPI method paths */
66#define METHOD_LCD_BRIGHTNESS "\\_SB_.PCI0.VGA_.LCD_._BCM"
67#define TOSH_INTERFACE_1 "\\_SB_.VALD"
68#define TOSH_INTERFACE_2 "\\_SB_.VALZ"
69#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
70#define GHCI_METHOD ".GHCI"
71
72/* Toshiba HCI interface definitions
73 *
74 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
75 * be uniform across all their models. Ideally we would just call
76 * dedicated ACPI methods instead of using this primitive interface.
77 * However the ACPI methods seem to be incomplete in some areas (for
78 * example they allow setting, but not reading, the LCD brightness value),
79 * so this is still useful.
80 */
81
82#define HCI_WORDS 6
83
84/* operations */
85#define HCI_SET 0xff00
86#define HCI_GET 0xfe00
87
88/* return codes */
89#define HCI_SUCCESS 0x0000
90#define HCI_FAILURE 0x1000
91#define HCI_NOT_SUPPORTED 0x8000
92#define HCI_EMPTY 0x8c00
93
94/* registers */
95#define HCI_FAN 0x0004
96#define HCI_SYSTEM_EVENT 0x0016
97#define HCI_VIDEO_OUT 0x001c
98#define HCI_HOTKEY_EVENT 0x001e
99#define HCI_LCD_BRIGHTNESS 0x002a
100#define HCI_WIRELESS 0x0056
101
102/* field definitions */
103#define HCI_LCD_BRIGHTNESS_BITS 3
104#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
105#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
106#define HCI_VIDEO_OUT_LCD 0x1
107#define HCI_VIDEO_OUT_CRT 0x2
108#define HCI_VIDEO_OUT_TV 0x4
109#define HCI_WIRELESS_KILL_SWITCH 0x01
110#define HCI_WIRELESS_BT_PRESENT 0x0f
111#define HCI_WIRELESS_BT_ATTACH 0x40
112#define HCI_WIRELESS_BT_POWER 0x80
113
114static const struct acpi_device_id toshiba_device_ids[] = {
115 {"TOS6200", 0},
116 {"TOS6208", 0},
117 {"TOS1900", 0},
118 {"", 0},
119};
120MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
121
122static const struct key_entry toshiba_acpi_keymap[] __initconst = {
123 { KE_KEY, 0x101, { KEY_MUTE } },
124 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
125 { KE_KEY, 0x103, { KEY_ZOOMIN } },
126 { KE_KEY, 0x13b, { KEY_COFFEE } },
127 { KE_KEY, 0x13c, { KEY_BATTERY } },
128 { KE_KEY, 0x13d, { KEY_SLEEP } },
129 { KE_KEY, 0x13e, { KEY_SUSPEND } },
130 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
131 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
132 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
133 { KE_KEY, 0x142, { KEY_WLAN } },
134 { KE_KEY, 0x143, { KEY_PROG1 } },
135 { KE_KEY, 0x17f, { KEY_FN } },
136 { KE_KEY, 0xb05, { KEY_PROG2 } },
137 { KE_KEY, 0xb06, { KEY_WWW } },
138 { KE_KEY, 0xb07, { KEY_MAIL } },
139 { KE_KEY, 0xb30, { KEY_STOP } },
140 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
141 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
142 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
143 { KE_KEY, 0xb5a, { KEY_MEDIA } },
144 { KE_END, 0 },
145};
146
147/* utility
148 */
149
150static __inline__ void _set_bit(u32 * word, u32 mask, int value)
151{
152 *word = (*word & ~mask) | (mask * value);
153}
154
155/* acpi interface wrappers
156 */
157
158static int is_valid_acpi_path(const char *methodName)
159{
160 acpi_handle handle;
161 acpi_status status;
162
163 status = acpi_get_handle(NULL, (char *)methodName, &handle);
164 return !ACPI_FAILURE(status);
165}
166
167static int write_acpi_int(const char *methodName, int val)
168{
169 struct acpi_object_list params;
170 union acpi_object in_objs[1];
171 acpi_status status;
172
173 params.count = ARRAY_SIZE(in_objs);
174 params.pointer = in_objs;
175 in_objs[0].type = ACPI_TYPE_INTEGER;
176 in_objs[0].integer.value = val;
177
178 status = acpi_evaluate_object(NULL, (char *)methodName, ¶ms, NULL);
179 return (status == AE_OK);
180}
181
182#if 0
183static int read_acpi_int(const char *methodName, int *pVal)
184{
185 struct acpi_buffer results;
186 union acpi_object out_objs[1];
187 acpi_status status;
188
189 results.length = sizeof(out_objs);
190 results.pointer = out_objs;
191
192 status = acpi_evaluate_object(0, (char *)methodName, 0, &results);
193 *pVal = out_objs[0].integer.value;
194
195 return (status == AE_OK) && (out_objs[0].type == ACPI_TYPE_INTEGER);
196}
197#endif
198
199static const char *method_hci /*= 0*/ ;
200
201/* Perform a raw HCI call. Here we don't care about input or output buffer
202 * format.
203 */
204static acpi_status hci_raw(const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
205{
206 struct acpi_object_list params;
207 union acpi_object in_objs[HCI_WORDS];
208 struct acpi_buffer results;
209 union acpi_object out_objs[HCI_WORDS + 1];
210 acpi_status status;
211 int i;
212
213 params.count = HCI_WORDS;
214 params.pointer = in_objs;
215 for (i = 0; i < HCI_WORDS; ++i) {
216 in_objs[i].type = ACPI_TYPE_INTEGER;
217 in_objs[i].integer.value = in[i];
218 }
219
220 results.length = sizeof(out_objs);
221 results.pointer = out_objs;
222
223 status = acpi_evaluate_object(NULL, (char *)method_hci, ¶ms,
224 &results);
225 if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
226 for (i = 0; i < out_objs->package.count; ++i) {
227 out[i] = out_objs->package.elements[i].integer.value;
228 }
229 }
230
231 return status;
232}
233
234/* common hci tasks (get or set one or two value)
235 *
236 * In addition to the ACPI status, the HCI system returns a result which
237 * may be useful (such as "not supported").
238 */
239
240static acpi_status hci_write1(u32 reg, u32 in1, u32 * result)
241{
242 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
243 u32 out[HCI_WORDS];
244 acpi_status status = hci_raw(in, out);
245 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
246 return status;
247}
248
249static acpi_status hci_read1(u32 reg, u32 * out1, u32 * result)
250{
251 u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
252 u32 out[HCI_WORDS];
253 acpi_status status = hci_raw(in, out);
254 *out1 = out[2];
255 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
256 return status;
257}
258
259static acpi_status hci_write2(u32 reg, u32 in1, u32 in2, u32 *result)
260{
261 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
262 u32 out[HCI_WORDS];
263 acpi_status status = hci_raw(in, out);
264 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
265 return status;
266}
267
268static acpi_status hci_read2(u32 reg, u32 *out1, u32 *out2, u32 *result)
269{
270 u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
271 u32 out[HCI_WORDS];
272 acpi_status status = hci_raw(in, out);
273 *out1 = out[2];
274 *out2 = out[3];
275 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
276 return status;
277}
278
279struct toshiba_acpi_dev {
280 struct platform_device *p_dev;
281 struct rfkill *bt_rfk;
282 struct input_dev *hotkey_dev;
283 int illumination_installed;
284 acpi_handle handle;
285
286 const char *bt_name;
287
288 struct mutex mutex;
289};
290
291/* Illumination support */
292static int toshiba_illumination_available(void)
293{
294 u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
295 u32 out[HCI_WORDS];
296 acpi_status status;
297
298 in[0] = 0xf100;
299 status = hci_raw(in, out);
300 if (ACPI_FAILURE(status)) {
301 pr_info("Illumination device not available\n");
302 return 0;
303 }
304 in[0] = 0xf400;
305 status = hci_raw(in, out);
306 return 1;
307}
308
309static void toshiba_illumination_set(struct led_classdev *cdev,
310 enum led_brightness brightness)
311{
312 u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
313 u32 out[HCI_WORDS];
314 acpi_status status;
315
316 /* First request : initialize communication. */
317 in[0] = 0xf100;
318 status = hci_raw(in, out);
319 if (ACPI_FAILURE(status)) {
320 pr_info("Illumination device not available\n");
321 return;
322 }
323
324 if (brightness) {
325 /* Switch the illumination on */
326 in[0] = 0xf400;
327 in[1] = 0x14e;
328 in[2] = 1;
329 status = hci_raw(in, out);
330 if (ACPI_FAILURE(status)) {
331 pr_info("ACPI call for illumination failed\n");
332 return;
333 }
334 } else {
335 /* Switch the illumination off */
336 in[0] = 0xf400;
337 in[1] = 0x14e;
338 in[2] = 0;
339 status = hci_raw(in, out);
340 if (ACPI_FAILURE(status)) {
341 pr_info("ACPI call for illumination failed.\n");
342 return;
343 }
344 }
345
346 /* Last request : close communication. */
347 in[0] = 0xf200;
348 in[1] = 0;
349 in[2] = 0;
350 hci_raw(in, out);
351}
352
353static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
354{
355 u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
356 u32 out[HCI_WORDS];
357 acpi_status status;
358 enum led_brightness result;
359
360 /*Â First request : initialize communication. */
361 in[0] = 0xf100;
362 status = hci_raw(in, out);
363 if (ACPI_FAILURE(status)) {
364 pr_info("Illumination device not available\n");
365 return LED_OFF;
366 }
367
368 /* Check the illumination */
369 in[0] = 0xf300;
370 in[1] = 0x14e;
371 status = hci_raw(in, out);
372 if (ACPI_FAILURE(status)) {
373 pr_info("ACPI call for illumination failed.\n");
374 return LED_OFF;
375 }
376
377 result = out[2] ? LED_FULL : LED_OFF;
378
379 /* Last request : close communication. */
380 in[0] = 0xf200;
381 in[1] = 0;
382 in[2] = 0;
383 hci_raw(in, out);
384
385 return result;
386}
387
388static struct led_classdev toshiba_led = {
389 .name = "toshiba::illumination",
390 .max_brightness = 1,
391 .brightness_set = toshiba_illumination_set,
392 .brightness_get = toshiba_illumination_get,
393};
394
395static struct toshiba_acpi_dev toshiba_acpi = {
396 .bt_name = "Toshiba Bluetooth",
397};
398
399/* Bluetooth rfkill handlers */
400
401static u32 hci_get_bt_present(bool *present)
402{
403 u32 hci_result;
404 u32 value, value2;
405
406 value = 0;
407 value2 = 0;
408 hci_read2(HCI_WIRELESS, &value, &value2, &hci_result);
409 if (hci_result == HCI_SUCCESS)
410 *present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false;
411
412 return hci_result;
413}
414
415static u32 hci_get_radio_state(bool *radio_state)
416{
417 u32 hci_result;
418 u32 value, value2;
419
420 value = 0;
421 value2 = 0x0001;
422 hci_read2(HCI_WIRELESS, &value, &value2, &hci_result);
423
424 *radio_state = value & HCI_WIRELESS_KILL_SWITCH;
425 return hci_result;
426}
427
428static int bt_rfkill_set_block(void *data, bool blocked)
429{
430 struct toshiba_acpi_dev *dev = data;
431 u32 result1, result2;
432 u32 value;
433 int err;
434 bool radio_state;
435
436 value = (blocked == false);
437
438 mutex_lock(&dev->mutex);
439 if (hci_get_radio_state(&radio_state) != HCI_SUCCESS) {
440 err = -EBUSY;
441 goto out;
442 }
443
444 if (!radio_state) {
445 err = 0;
446 goto out;
447 }
448
449 hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1);
450 hci_write2(HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2);
451
452 if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS)
453 err = -EBUSY;
454 else
455 err = 0;
456 out:
457 mutex_unlock(&dev->mutex);
458 return err;
459}
460
461static void bt_rfkill_poll(struct rfkill *rfkill, void *data)
462{
463 bool new_rfk_state;
464 bool value;
465 u32 hci_result;
466 struct toshiba_acpi_dev *dev = data;
467
468 mutex_lock(&dev->mutex);
469
470 hci_result = hci_get_radio_state(&value);
471 if (hci_result != HCI_SUCCESS) {
472 /* Can't do anything useful */
473 mutex_unlock(&dev->mutex);
474 return;
475 }
476
477 new_rfk_state = value;
478
479 mutex_unlock(&dev->mutex);
480
481 if (rfkill_set_hw_state(rfkill, !new_rfk_state))
482 bt_rfkill_set_block(data, true);
483}
484
485static const struct rfkill_ops toshiba_rfk_ops = {
486 .set_block = bt_rfkill_set_block,
487 .poll = bt_rfkill_poll,
488};
489
490static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
491static struct backlight_device *toshiba_backlight_device;
492static int force_fan;
493static int last_key_event;
494static int key_event_valid;
495
496static int get_lcd(struct backlight_device *bd)
497{
498 u32 hci_result;
499 u32 value;
500
501 hci_read1(HCI_LCD_BRIGHTNESS, &value, &hci_result);
502 if (hci_result == HCI_SUCCESS) {
503 return (value >> HCI_LCD_BRIGHTNESS_SHIFT);
504 } else
505 return -EFAULT;
506}
507
508static int lcd_proc_show(struct seq_file *m, void *v)
509{
510 int value = get_lcd(NULL);
511
512 if (value >= 0) {
513 seq_printf(m, "brightness: %d\n", value);
514 seq_printf(m, "brightness_levels: %d\n",
515 HCI_LCD_BRIGHTNESS_LEVELS);
516 } else {
517 pr_err("Error reading LCD brightness\n");
518 }
519
520 return 0;
521}
522
523static int lcd_proc_open(struct inode *inode, struct file *file)
524{
525 return single_open(file, lcd_proc_show, NULL);
526}
527
528static int set_lcd(int value)
529{
530 u32 hci_result;
531
532 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
533 hci_write1(HCI_LCD_BRIGHTNESS, value, &hci_result);
534 if (hci_result != HCI_SUCCESS)
535 return -EFAULT;
536
537 return 0;
538}
539
540static int set_lcd_status(struct backlight_device *bd)
541{
542 return set_lcd(bd->props.brightness);
543}
544
545static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
546 size_t count, loff_t *pos)
547{
548 char cmd[42];
549 size_t len;
550 int value;
551 int ret;
552
553 len = min(count, sizeof(cmd) - 1);
554 if (copy_from_user(cmd, buf, len))
555 return -EFAULT;
556 cmd[len] = '\0';
557
558 if (sscanf(cmd, " brightness : %i", &value) == 1 &&
559 value >= 0 && value < HCI_LCD_BRIGHTNESS_LEVELS) {
560 ret = set_lcd(value);
561 if (ret == 0)
562 ret = count;
563 } else {
564 ret = -EINVAL;
565 }
566 return ret;
567}
568
569static const struct file_operations lcd_proc_fops = {
570 .owner = THIS_MODULE,
571 .open = lcd_proc_open,
572 .read = seq_read,
573 .llseek = seq_lseek,
574 .release = single_release,
575 .write = lcd_proc_write,
576};
577
578static int video_proc_show(struct seq_file *m, void *v)
579{
580 u32 hci_result;
581 u32 value;
582
583 hci_read1(HCI_VIDEO_OUT, &value, &hci_result);
584 if (hci_result == HCI_SUCCESS) {
585 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
586 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
587 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
588 seq_printf(m, "lcd_out: %d\n", is_lcd);
589 seq_printf(m, "crt_out: %d\n", is_crt);
590 seq_printf(m, "tv_out: %d\n", is_tv);
591 } else {
592 pr_err("Error reading video out status\n");
593 }
594
595 return 0;
596}
597
598static int video_proc_open(struct inode *inode, struct file *file)
599{
600 return single_open(file, video_proc_show, NULL);
601}
602
603static ssize_t video_proc_write(struct file *file, const char __user *buf,
604 size_t count, loff_t *pos)
605{
606 char *cmd, *buffer;
607 int value;
608 int remain = count;
609 int lcd_out = -1;
610 int crt_out = -1;
611 int tv_out = -1;
612 u32 hci_result;
613 u32 video_out;
614
615 cmd = kmalloc(count + 1, GFP_KERNEL);
616 if (!cmd)
617 return -ENOMEM;
618 if (copy_from_user(cmd, buf, count)) {
619 kfree(cmd);
620 return -EFAULT;
621 }
622 cmd[count] = '\0';
623
624 buffer = cmd;
625
626 /* scan expression. Multiple expressions may be delimited with ;
627 *
628 * NOTE: to keep scanning simple, invalid fields are ignored
629 */
630 while (remain) {
631 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
632 lcd_out = value & 1;
633 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
634 crt_out = value & 1;
635 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
636 tv_out = value & 1;
637 /* advance to one character past the next ; */
638 do {
639 ++buffer;
640 --remain;
641 }
642 while (remain && *(buffer - 1) != ';');
643 }
644
645 kfree(cmd);
646
647 hci_read1(HCI_VIDEO_OUT, &video_out, &hci_result);
648 if (hci_result == HCI_SUCCESS) {
649 unsigned int new_video_out = video_out;
650 if (lcd_out != -1)
651 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
652 if (crt_out != -1)
653 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
654 if (tv_out != -1)
655 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
656 /* To avoid unnecessary video disruption, only write the new
657 * video setting if something changed. */
658 if (new_video_out != video_out)
659 write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
660 } else {
661 return -EFAULT;
662 }
663
664 return count;
665}
666
667static const struct file_operations video_proc_fops = {
668 .owner = THIS_MODULE,
669 .open = video_proc_open,
670 .read = seq_read,
671 .llseek = seq_lseek,
672 .release = single_release,
673 .write = video_proc_write,
674};
675
676static int fan_proc_show(struct seq_file *m, void *v)
677{
678 u32 hci_result;
679 u32 value;
680
681 hci_read1(HCI_FAN, &value, &hci_result);
682 if (hci_result == HCI_SUCCESS) {
683 seq_printf(m, "running: %d\n", (value > 0));
684 seq_printf(m, "force_on: %d\n", force_fan);
685 } else {
686 pr_err("Error reading fan status\n");
687 }
688
689 return 0;
690}
691
692static int fan_proc_open(struct inode *inode, struct file *file)
693{
694 return single_open(file, fan_proc_show, NULL);
695}
696
697static ssize_t fan_proc_write(struct file *file, const char __user *buf,
698 size_t count, loff_t *pos)
699{
700 char cmd[42];
701 size_t len;
702 int value;
703 u32 hci_result;
704
705 len = min(count, sizeof(cmd) - 1);
706 if (copy_from_user(cmd, buf, len))
707 return -EFAULT;
708 cmd[len] = '\0';
709
710 if (sscanf(cmd, " force_on : %i", &value) == 1 &&
711 value >= 0 && value <= 1) {
712 hci_write1(HCI_FAN, value, &hci_result);
713 if (hci_result != HCI_SUCCESS)
714 return -EFAULT;
715 else
716 force_fan = value;
717 } else {
718 return -EINVAL;
719 }
720
721 return count;
722}
723
724static const struct file_operations fan_proc_fops = {
725 .owner = THIS_MODULE,
726 .open = fan_proc_open,
727 .read = seq_read,
728 .llseek = seq_lseek,
729 .release = single_release,
730 .write = fan_proc_write,
731};
732
733static int keys_proc_show(struct seq_file *m, void *v)
734{
735 u32 hci_result;
736 u32 value;
737
738 if (!key_event_valid) {
739 hci_read1(HCI_SYSTEM_EVENT, &value, &hci_result);
740 if (hci_result == HCI_SUCCESS) {
741 key_event_valid = 1;
742 last_key_event = value;
743 } else if (hci_result == HCI_EMPTY) {
744 /* better luck next time */
745 } else if (hci_result == HCI_NOT_SUPPORTED) {
746 /* This is a workaround for an unresolved issue on
747 * some machines where system events sporadically
748 * become disabled. */
749 hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result);
750 pr_notice("Re-enabled hotkeys\n");
751 } else {
752 pr_err("Error reading hotkey status\n");
753 goto end;
754 }
755 }
756
757 seq_printf(m, "hotkey_ready: %d\n", key_event_valid);
758 seq_printf(m, "hotkey: 0x%04x\n", last_key_event);
759end:
760 return 0;
761}
762
763static int keys_proc_open(struct inode *inode, struct file *file)
764{
765 return single_open(file, keys_proc_show, NULL);
766}
767
768static ssize_t keys_proc_write(struct file *file, const char __user *buf,
769 size_t count, loff_t *pos)
770{
771 char cmd[42];
772 size_t len;
773 int value;
774
775 len = min(count, sizeof(cmd) - 1);
776 if (copy_from_user(cmd, buf, len))
777 return -EFAULT;
778 cmd[len] = '\0';
779
780 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) {
781 key_event_valid = 0;
782 } else {
783 return -EINVAL;
784 }
785
786 return count;
787}
788
789static const struct file_operations keys_proc_fops = {
790 .owner = THIS_MODULE,
791 .open = keys_proc_open,
792 .read = seq_read,
793 .llseek = seq_lseek,
794 .release = single_release,
795 .write = keys_proc_write,
796};
797
798static int version_proc_show(struct seq_file *m, void *v)
799{
800 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
801 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
802 return 0;
803}
804
805static int version_proc_open(struct inode *inode, struct file *file)
806{
807 return single_open(file, version_proc_show, PDE(inode)->data);
808}
809
810static const struct file_operations version_proc_fops = {
811 .owner = THIS_MODULE,
812 .open = version_proc_open,
813 .read = seq_read,
814 .llseek = seq_lseek,
815 .release = single_release,
816};
817
818/* proc and module init
819 */
820
821#define PROC_TOSHIBA "toshiba"
822
823static void __init create_toshiba_proc_entries(void)
824{
825 proc_create("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir, &lcd_proc_fops);
826 proc_create("video", S_IRUGO | S_IWUSR, toshiba_proc_dir, &video_proc_fops);
827 proc_create("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir, &fan_proc_fops);
828 proc_create("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir, &keys_proc_fops);
829 proc_create("version", S_IRUGO, toshiba_proc_dir, &version_proc_fops);
830}
831
832static void remove_toshiba_proc_entries(void)
833{
834 remove_proc_entry("lcd", toshiba_proc_dir);
835 remove_proc_entry("video", toshiba_proc_dir);
836 remove_proc_entry("fan", toshiba_proc_dir);
837 remove_proc_entry("keys", toshiba_proc_dir);
838 remove_proc_entry("version", toshiba_proc_dir);
839}
840
841static const struct backlight_ops toshiba_backlight_data = {
842 .get_brightness = get_lcd,
843 .update_status = set_lcd_status,
844};
845
846static void toshiba_acpi_notify(acpi_handle handle, u32 event, void *context)
847{
848 u32 hci_result, value;
849
850 if (event != 0x80)
851 return;
852 do {
853 hci_read1(HCI_SYSTEM_EVENT, &value, &hci_result);
854 if (hci_result == HCI_SUCCESS) {
855 if (value == 0x100)
856 continue;
857 /* act on key press; ignore key release */
858 if (value & 0x80)
859 continue;
860
861 if (!sparse_keymap_report_event(toshiba_acpi.hotkey_dev,
862 value, 1, true)) {
863 pr_info("Unknown key %x\n",
864 value);
865 }
866 } else if (hci_result == HCI_NOT_SUPPORTED) {
867 /* This is a workaround for an unresolved issue on
868 * some machines where system events sporadically
869 * become disabled. */
870 hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result);
871 pr_notice("Re-enabled hotkeys\n");
872 }
873 } while (hci_result != HCI_EMPTY);
874}
875
876static int __init toshiba_acpi_setup_keyboard(char *device)
877{
878 acpi_status status;
879 int error;
880
881 status = acpi_get_handle(NULL, device, &toshiba_acpi.handle);
882 if (ACPI_FAILURE(status)) {
883 pr_info("Unable to get notification device\n");
884 return -ENODEV;
885 }
886
887 toshiba_acpi.hotkey_dev = input_allocate_device();
888 if (!toshiba_acpi.hotkey_dev) {
889 pr_info("Unable to register input device\n");
890 return -ENOMEM;
891 }
892
893 toshiba_acpi.hotkey_dev->name = "Toshiba input device";
894 toshiba_acpi.hotkey_dev->phys = device;
895 toshiba_acpi.hotkey_dev->id.bustype = BUS_HOST;
896
897 error = sparse_keymap_setup(toshiba_acpi.hotkey_dev,
898 toshiba_acpi_keymap, NULL);
899 if (error)
900 goto err_free_dev;
901
902 status = acpi_install_notify_handler(toshiba_acpi.handle,
903 ACPI_DEVICE_NOTIFY, toshiba_acpi_notify, NULL);
904 if (ACPI_FAILURE(status)) {
905 pr_info("Unable to install hotkey notification\n");
906 error = -ENODEV;
907 goto err_free_keymap;
908 }
909
910 status = acpi_evaluate_object(toshiba_acpi.handle, "ENAB", NULL, NULL);
911 if (ACPI_FAILURE(status)) {
912 pr_info("Unable to enable hotkeys\n");
913 error = -ENODEV;
914 goto err_remove_notify;
915 }
916
917 error = input_register_device(toshiba_acpi.hotkey_dev);
918 if (error) {
919 pr_info("Unable to register input device\n");
920 goto err_remove_notify;
921 }
922
923 return 0;
924
925 err_remove_notify:
926 acpi_remove_notify_handler(toshiba_acpi.handle,
927 ACPI_DEVICE_NOTIFY, toshiba_acpi_notify);
928 err_free_keymap:
929 sparse_keymap_free(toshiba_acpi.hotkey_dev);
930 err_free_dev:
931 input_free_device(toshiba_acpi.hotkey_dev);
932 toshiba_acpi.hotkey_dev = NULL;
933 return error;
934}
935
936static void toshiba_acpi_exit(void)
937{
938 if (toshiba_acpi.hotkey_dev) {
939 acpi_remove_notify_handler(toshiba_acpi.handle,
940 ACPI_DEVICE_NOTIFY, toshiba_acpi_notify);
941 sparse_keymap_free(toshiba_acpi.hotkey_dev);
942 input_unregister_device(toshiba_acpi.hotkey_dev);
943 }
944
945 if (toshiba_acpi.bt_rfk) {
946 rfkill_unregister(toshiba_acpi.bt_rfk);
947 rfkill_destroy(toshiba_acpi.bt_rfk);
948 }
949
950 if (toshiba_backlight_device)
951 backlight_device_unregister(toshiba_backlight_device);
952
953 remove_toshiba_proc_entries();
954
955 if (toshiba_proc_dir)
956 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
957
958 if (toshiba_acpi.illumination_installed)
959 led_classdev_unregister(&toshiba_led);
960
961 platform_device_unregister(toshiba_acpi.p_dev);
962
963 return;
964}
965
966static int __init toshiba_acpi_init(void)
967{
968 u32 hci_result;
969 bool bt_present;
970 int ret = 0;
971 struct backlight_properties props;
972
973 if (acpi_disabled)
974 return -ENODEV;
975
976 /* simple device detection: look for HCI method */
977 if (is_valid_acpi_path(TOSH_INTERFACE_1 GHCI_METHOD)) {
978 method_hci = TOSH_INTERFACE_1 GHCI_METHOD;
979 if (toshiba_acpi_setup_keyboard(TOSH_INTERFACE_1))
980 pr_info("Unable to activate hotkeys\n");
981 } else if (is_valid_acpi_path(TOSH_INTERFACE_2 GHCI_METHOD)) {
982 method_hci = TOSH_INTERFACE_2 GHCI_METHOD;
983 if (toshiba_acpi_setup_keyboard(TOSH_INTERFACE_2))
984 pr_info("Unable to activate hotkeys\n");
985 } else
986 return -ENODEV;
987
988 pr_info("Toshiba Laptop ACPI Extras version %s\n",
989 TOSHIBA_ACPI_VERSION);
990 pr_info(" HCI method: %s\n", method_hci);
991
992 mutex_init(&toshiba_acpi.mutex);
993
994 toshiba_acpi.p_dev = platform_device_register_simple("toshiba_acpi",
995 -1, NULL, 0);
996 if (IS_ERR(toshiba_acpi.p_dev)) {
997 ret = PTR_ERR(toshiba_acpi.p_dev);
998 pr_err("unable to register platform device\n");
999 toshiba_acpi.p_dev = NULL;
1000 toshiba_acpi_exit();
1001 return ret;
1002 }
1003
1004 force_fan = 0;
1005 key_event_valid = 0;
1006
1007 /* enable event fifo */
1008 hci_write1(HCI_SYSTEM_EVENT, 1, &hci_result);
1009
1010 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
1011 if (!toshiba_proc_dir) {
1012 toshiba_acpi_exit();
1013 return -ENODEV;
1014 } else {
1015 create_toshiba_proc_entries();
1016 }
1017
1018 props.type = BACKLIGHT_PLATFORM;
1019 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
1020 toshiba_backlight_device = backlight_device_register("toshiba",
1021 &toshiba_acpi.p_dev->dev,
1022 NULL,
1023 &toshiba_backlight_data,
1024 &props);
1025 if (IS_ERR(toshiba_backlight_device)) {
1026 ret = PTR_ERR(toshiba_backlight_device);
1027
1028 pr_err("Could not register toshiba backlight device\n");
1029 toshiba_backlight_device = NULL;
1030 toshiba_acpi_exit();
1031 return ret;
1032 }
1033
1034 /* Register rfkill switch for Bluetooth */
1035 if (hci_get_bt_present(&bt_present) == HCI_SUCCESS && bt_present) {
1036 toshiba_acpi.bt_rfk = rfkill_alloc(toshiba_acpi.bt_name,
1037 &toshiba_acpi.p_dev->dev,
1038 RFKILL_TYPE_BLUETOOTH,
1039 &toshiba_rfk_ops,
1040 &toshiba_acpi);
1041 if (!toshiba_acpi.bt_rfk) {
1042 pr_err("unable to allocate rfkill device\n");
1043 toshiba_acpi_exit();
1044 return -ENOMEM;
1045 }
1046
1047 ret = rfkill_register(toshiba_acpi.bt_rfk);
1048 if (ret) {
1049 pr_err("unable to register rfkill device\n");
1050 rfkill_destroy(toshiba_acpi.bt_rfk);
1051 toshiba_acpi_exit();
1052 return ret;
1053 }
1054 }
1055
1056 toshiba_acpi.illumination_installed = 0;
1057 if (toshiba_illumination_available()) {
1058 if (!led_classdev_register(&(toshiba_acpi.p_dev->dev),
1059 &toshiba_led))
1060 toshiba_acpi.illumination_installed = 1;
1061 }
1062
1063 return 0;
1064}
1065
1066module_init(toshiba_acpi_init);
1067module_exit(toshiba_acpi_exit);
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
4 *
5 * Copyright (C) 2002-2004 John Belmonte
6 * Copyright (C) 2008 Philip Langdale
7 * Copyright (C) 2010 Pierre Ducroquet
8 * Copyright (C) 2014-2016 Azael Avalos
9 *
10 * The devolpment page for this driver is located at
11 * http://memebeam.org/toys/ToshibaAcpiDriver.
12 *
13 * Credits:
14 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
15 * engineering the Windows drivers
16 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
17 * Rob Miller - TV out and hotkeys help
18 */
19
20#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
21
22#define TOSHIBA_ACPI_VERSION "0.24"
23#define PROC_INTERFACE_VERSION 1
24
25#include <linux/compiler.h>
26#include <linux/kernel.h>
27#include <linux/module.h>
28#include <linux/moduleparam.h>
29#include <linux/init.h>
30#include <linux/types.h>
31#include <linux/proc_fs.h>
32#include <linux/seq_file.h>
33#include <linux/backlight.h>
34#include <linux/input.h>
35#include <linux/input/sparse-keymap.h>
36#include <linux/leds.h>
37#include <linux/slab.h>
38#include <linux/workqueue.h>
39#include <linux/i8042.h>
40#include <linux/acpi.h>
41#include <linux/dmi.h>
42#include <linux/uaccess.h>
43#include <linux/miscdevice.h>
44#include <linux/rfkill.h>
45#include <linux/iio/iio.h>
46#include <linux/toshiba.h>
47#include <acpi/video.h>
48
49MODULE_AUTHOR("John Belmonte");
50MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
51MODULE_LICENSE("GPL");
52
53#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
54
55/* Scan code for Fn key on TOS1900 models */
56#define TOS1900_FN_SCAN 0x6e
57
58/* Toshiba ACPI method paths */
59#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
60
61/*
62 * The Toshiba configuration interface is composed of the HCI and the SCI,
63 * which are defined as follows:
64 *
65 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
66 * be uniform across all their models. Ideally we would just call
67 * dedicated ACPI methods instead of using this primitive interface.
68 * However the ACPI methods seem to be incomplete in some areas (for
69 * example they allow setting, but not reading, the LCD brightness value),
70 * so this is still useful.
71 *
72 * SCI stands for "System Configuration Interface" which aim is to
73 * conceal differences in hardware between different models.
74 */
75
76#define TCI_WORDS 6
77
78/* Operations */
79#define HCI_SET 0xff00
80#define HCI_GET 0xfe00
81#define SCI_OPEN 0xf100
82#define SCI_CLOSE 0xf200
83#define SCI_GET 0xf300
84#define SCI_SET 0xf400
85
86/* Return codes */
87#define TOS_SUCCESS 0x0000
88#define TOS_SUCCESS2 0x0001
89#define TOS_OPEN_CLOSE_OK 0x0044
90#define TOS_FAILURE 0x1000
91#define TOS_NOT_SUPPORTED 0x8000
92#define TOS_ALREADY_OPEN 0x8100
93#define TOS_NOT_OPENED 0x8200
94#define TOS_INPUT_DATA_ERROR 0x8300
95#define TOS_WRITE_PROTECTED 0x8400
96#define TOS_NOT_PRESENT 0x8600
97#define TOS_FIFO_EMPTY 0x8c00
98#define TOS_DATA_NOT_AVAILABLE 0x8d20
99#define TOS_NOT_INITIALIZED 0x8d50
100#define TOS_NOT_INSTALLED 0x8e00
101
102/* Registers */
103#define HCI_FAN 0x0004
104#define HCI_TR_BACKLIGHT 0x0005
105#define HCI_SYSTEM_EVENT 0x0016
106#define HCI_VIDEO_OUT 0x001c
107#define HCI_HOTKEY_EVENT 0x001e
108#define HCI_LCD_BRIGHTNESS 0x002a
109#define HCI_WIRELESS 0x0056
110#define HCI_ACCELEROMETER 0x006d
111#define HCI_COOLING_METHOD 0x007f
112#define HCI_KBD_ILLUMINATION 0x0095
113#define HCI_ECO_MODE 0x0097
114#define HCI_ACCELEROMETER2 0x00a6
115#define HCI_SYSTEM_INFO 0xc000
116#define SCI_PANEL_POWER_ON 0x010d
117#define SCI_ILLUMINATION 0x014e
118#define SCI_USB_SLEEP_CHARGE 0x0150
119#define SCI_KBD_ILLUM_STATUS 0x015c
120#define SCI_USB_SLEEP_MUSIC 0x015e
121#define SCI_USB_THREE 0x0169
122#define SCI_TOUCHPAD 0x050e
123#define SCI_KBD_FUNCTION_KEYS 0x0522
124
125/* Field definitions */
126#define HCI_ACCEL_MASK 0x7fff
127#define HCI_ACCEL_DIRECTION_MASK 0x8000
128#define HCI_HOTKEY_DISABLE 0x0b
129#define HCI_HOTKEY_ENABLE 0x09
130#define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
131#define HCI_LCD_BRIGHTNESS_BITS 3
132#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
133#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
134#define HCI_MISC_SHIFT 0x10
135#define HCI_SYSTEM_TYPE1 0x10
136#define HCI_SYSTEM_TYPE2 0x11
137#define HCI_VIDEO_OUT_LCD 0x1
138#define HCI_VIDEO_OUT_CRT 0x2
139#define HCI_VIDEO_OUT_TV 0x4
140#define SCI_KBD_MODE_MASK 0x1f
141#define SCI_KBD_MODE_FNZ 0x1
142#define SCI_KBD_MODE_AUTO 0x2
143#define SCI_KBD_MODE_ON 0x8
144#define SCI_KBD_MODE_OFF 0x10
145#define SCI_KBD_TIME_MAX 0x3c001a
146#define HCI_WIRELESS_STATUS 0x1
147#define HCI_WIRELESS_WWAN 0x3
148#define HCI_WIRELESS_WWAN_STATUS 0x2000
149#define HCI_WIRELESS_WWAN_POWER 0x4000
150#define SCI_USB_CHARGE_MODE_MASK 0xff
151#define SCI_USB_CHARGE_DISABLED 0x00
152#define SCI_USB_CHARGE_ALTERNATE 0x09
153#define SCI_USB_CHARGE_TYPICAL 0x11
154#define SCI_USB_CHARGE_AUTO 0x21
155#define SCI_USB_CHARGE_BAT_MASK 0x7
156#define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
157#define SCI_USB_CHARGE_BAT_LVL_ON 0x4
158#define SCI_USB_CHARGE_BAT_LVL 0x0200
159#define SCI_USB_CHARGE_RAPID_DSP 0x0300
160
161struct toshiba_acpi_dev {
162 struct acpi_device *acpi_dev;
163 const char *method_hci;
164 struct input_dev *hotkey_dev;
165 struct work_struct hotkey_work;
166 struct backlight_device *backlight_dev;
167 struct led_classdev led_dev;
168 struct led_classdev kbd_led;
169 struct led_classdev eco_led;
170 struct miscdevice miscdev;
171 struct rfkill *wwan_rfk;
172 struct iio_dev *indio_dev;
173
174 int force_fan;
175 int last_key_event;
176 int key_event_valid;
177 int kbd_type;
178 int kbd_mode;
179 int kbd_time;
180 int usbsc_bat_level;
181 int usbsc_mode_base;
182 int hotkey_event_type;
183 int max_cooling_method;
184
185 unsigned int illumination_supported:1;
186 unsigned int video_supported:1;
187 unsigned int fan_supported:1;
188 unsigned int system_event_supported:1;
189 unsigned int ntfy_supported:1;
190 unsigned int info_supported:1;
191 unsigned int tr_backlight_supported:1;
192 unsigned int kbd_illum_supported:1;
193 unsigned int touchpad_supported:1;
194 unsigned int eco_supported:1;
195 unsigned int accelerometer_supported:1;
196 unsigned int usb_sleep_charge_supported:1;
197 unsigned int usb_rapid_charge_supported:1;
198 unsigned int usb_sleep_music_supported:1;
199 unsigned int kbd_function_keys_supported:1;
200 unsigned int panel_power_on_supported:1;
201 unsigned int usb_three_supported:1;
202 unsigned int wwan_supported:1;
203 unsigned int cooling_method_supported:1;
204 unsigned int sysfs_created:1;
205 unsigned int special_functions;
206
207 bool kbd_event_generated;
208 bool kbd_led_registered;
209 bool illumination_led_registered;
210 bool eco_led_registered;
211 bool killswitch;
212};
213
214static struct toshiba_acpi_dev *toshiba_acpi;
215
216static bool disable_hotkeys;
217module_param(disable_hotkeys, bool, 0444);
218MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
219
220static const struct acpi_device_id toshiba_device_ids[] = {
221 {"TOS6200", 0},
222 {"TOS6207", 0},
223 {"TOS6208", 0},
224 {"TOS1900", 0},
225 {"", 0},
226};
227MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
228
229static const struct key_entry toshiba_acpi_keymap[] = {
230 { KE_KEY, 0x9e, { KEY_RFKILL } },
231 { KE_KEY, 0x101, { KEY_MUTE } },
232 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
233 { KE_KEY, 0x103, { KEY_ZOOMIN } },
234 { KE_KEY, 0x10f, { KEY_TAB } },
235 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
236 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
237 { KE_KEY, 0x13b, { KEY_COFFEE } },
238 { KE_KEY, 0x13c, { KEY_BATTERY } },
239 { KE_KEY, 0x13d, { KEY_SLEEP } },
240 { KE_KEY, 0x13e, { KEY_SUSPEND } },
241 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
242 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
243 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
244 { KE_KEY, 0x142, { KEY_WLAN } },
245 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
246 { KE_KEY, 0x17f, { KEY_FN } },
247 { KE_KEY, 0xb05, { KEY_PROG2 } },
248 { KE_KEY, 0xb06, { KEY_WWW } },
249 { KE_KEY, 0xb07, { KEY_MAIL } },
250 { KE_KEY, 0xb30, { KEY_STOP } },
251 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
252 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
253 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
254 { KE_KEY, 0xb5a, { KEY_MEDIA } },
255 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
256 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
257 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
258 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
259 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
260 { KE_END, 0 },
261};
262
263static const struct key_entry toshiba_acpi_alt_keymap[] = {
264 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
265 { KE_KEY, 0x103, { KEY_ZOOMIN } },
266 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
267 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
268 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
269 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
270 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
271 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
272 { KE_KEY, 0x157, { KEY_MUTE } },
273 { KE_KEY, 0x158, { KEY_WLAN } },
274 { KE_END, 0 },
275};
276
277/*
278 * List of models which have a broken acpi-video backlight interface and thus
279 * need to use the toshiba (vendor) interface instead.
280 */
281static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
282 {}
283};
284
285/*
286 * Utility
287 */
288
289static inline void _set_bit(u32 *word, u32 mask, int value)
290{
291 *word = (*word & ~mask) | (mask * value);
292}
293
294/*
295 * ACPI interface wrappers
296 */
297
298static int write_acpi_int(const char *methodName, int val)
299{
300 acpi_status status;
301
302 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
303 return (status == AE_OK) ? 0 : -EIO;
304}
305
306/*
307 * Perform a raw configuration call. Here we don't care about input or output
308 * buffer format.
309 */
310static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
311 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
312{
313 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
314 struct acpi_object_list params;
315 struct acpi_buffer results;
316 acpi_status status;
317 int i;
318
319 params.count = TCI_WORDS;
320 params.pointer = in_objs;
321 for (i = 0; i < TCI_WORDS; ++i) {
322 in_objs[i].type = ACPI_TYPE_INTEGER;
323 in_objs[i].integer.value = in[i];
324 }
325
326 results.length = sizeof(out_objs);
327 results.pointer = out_objs;
328
329 status = acpi_evaluate_object(dev->acpi_dev->handle,
330 (char *)dev->method_hci, ¶ms,
331 &results);
332 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
333 for (i = 0; i < out_objs->package.count; ++i)
334 out[i] = out_objs->package.elements[i].integer.value;
335 }
336
337 return status;
338}
339
340/*
341 * Common hci tasks
342 *
343 * In addition to the ACPI status, the HCI system returns a result which
344 * may be useful (such as "not supported").
345 */
346
347static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
348{
349 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
350 u32 out[TCI_WORDS];
351 acpi_status status = tci_raw(dev, in, out);
352
353 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
354}
355
356static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
357{
358 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
359 u32 out[TCI_WORDS];
360 acpi_status status = tci_raw(dev, in, out);
361
362 if (ACPI_FAILURE(status))
363 return TOS_FAILURE;
364
365 *out1 = out[2];
366
367 return out[0];
368}
369
370/*
371 * Common sci tasks
372 */
373
374static int sci_open(struct toshiba_acpi_dev *dev)
375{
376 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
377 u32 out[TCI_WORDS];
378 acpi_status status = tci_raw(dev, in, out);
379
380 if (ACPI_FAILURE(status)) {
381 pr_err("ACPI call to open SCI failed\n");
382 return 0;
383 }
384
385 if (out[0] == TOS_OPEN_CLOSE_OK) {
386 return 1;
387 } else if (out[0] == TOS_ALREADY_OPEN) {
388 pr_info("Toshiba SCI already opened\n");
389 return 1;
390 } else if (out[0] == TOS_NOT_SUPPORTED) {
391 /*
392 * Some BIOSes do not have the SCI open/close functions
393 * implemented and return 0x8000 (Not Supported), failing to
394 * register some supported features.
395 *
396 * Simply return 1 if we hit those affected laptops to make the
397 * supported features work.
398 *
399 * In the case that some laptops really do not support the SCI,
400 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
401 * and thus, not registering support for the queried feature.
402 */
403 return 1;
404 } else if (out[0] == TOS_NOT_PRESENT) {
405 pr_info("Toshiba SCI is not present\n");
406 }
407
408 return 0;
409}
410
411static void sci_close(struct toshiba_acpi_dev *dev)
412{
413 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
414 u32 out[TCI_WORDS];
415 acpi_status status = tci_raw(dev, in, out);
416
417 if (ACPI_FAILURE(status)) {
418 pr_err("ACPI call to close SCI failed\n");
419 return;
420 }
421
422 if (out[0] == TOS_OPEN_CLOSE_OK)
423 return;
424 else if (out[0] == TOS_NOT_OPENED)
425 pr_info("Toshiba SCI not opened\n");
426 else if (out[0] == TOS_NOT_PRESENT)
427 pr_info("Toshiba SCI is not present\n");
428}
429
430static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
431{
432 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
433 u32 out[TCI_WORDS];
434 acpi_status status = tci_raw(dev, in, out);
435
436 if (ACPI_FAILURE(status))
437 return TOS_FAILURE;
438
439 *out1 = out[2];
440
441 return out[0];
442}
443
444static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
445{
446 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
447 u32 out[TCI_WORDS];
448 acpi_status status = tci_raw(dev, in, out);
449
450 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
451}
452
453/* Illumination support */
454static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
455{
456 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
457 u32 out[TCI_WORDS];
458 acpi_status status;
459
460 dev->illumination_supported = 0;
461 dev->illumination_led_registered = false;
462
463 if (!sci_open(dev))
464 return;
465
466 status = tci_raw(dev, in, out);
467 sci_close(dev);
468 if (ACPI_FAILURE(status)) {
469 pr_err("ACPI call to query Illumination support failed\n");
470 return;
471 }
472
473 if (out[0] != TOS_SUCCESS)
474 return;
475
476 dev->illumination_supported = 1;
477}
478
479static void toshiba_illumination_set(struct led_classdev *cdev,
480 enum led_brightness brightness)
481{
482 struct toshiba_acpi_dev *dev = container_of(cdev,
483 struct toshiba_acpi_dev, led_dev);
484 u32 result;
485 u32 state;
486
487 /* First request : initialize communication. */
488 if (!sci_open(dev))
489 return;
490
491 /* Switch the illumination on/off */
492 state = brightness ? 1 : 0;
493 result = sci_write(dev, SCI_ILLUMINATION, state);
494 sci_close(dev);
495 if (result == TOS_FAILURE)
496 pr_err("ACPI call for illumination failed\n");
497}
498
499static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
500{
501 struct toshiba_acpi_dev *dev = container_of(cdev,
502 struct toshiba_acpi_dev, led_dev);
503 u32 result;
504 u32 state;
505
506 /* First request : initialize communication. */
507 if (!sci_open(dev))
508 return LED_OFF;
509
510 /* Check the illumination */
511 result = sci_read(dev, SCI_ILLUMINATION, &state);
512 sci_close(dev);
513 if (result == TOS_FAILURE) {
514 pr_err("ACPI call for illumination failed\n");
515 return LED_OFF;
516 } else if (result != TOS_SUCCESS) {
517 return LED_OFF;
518 }
519
520 return state ? LED_FULL : LED_OFF;
521}
522
523/* KBD Illumination */
524static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
525{
526 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
527 u32 out[TCI_WORDS];
528 acpi_status status;
529
530 dev->kbd_illum_supported = 0;
531 dev->kbd_led_registered = false;
532 dev->kbd_event_generated = false;
533
534 if (!sci_open(dev))
535 return;
536
537 status = tci_raw(dev, in, out);
538 sci_close(dev);
539 if (ACPI_FAILURE(status)) {
540 pr_err("ACPI call to query kbd illumination support failed\n");
541 return;
542 }
543
544 if (out[0] != TOS_SUCCESS)
545 return;
546
547 /*
548 * Check for keyboard backlight timeout max value,
549 * previous kbd backlight implementation set this to
550 * 0x3c0003, and now the new implementation set this
551 * to 0x3c001a, use this to distinguish between them.
552 */
553 if (out[3] == SCI_KBD_TIME_MAX)
554 dev->kbd_type = 2;
555 else
556 dev->kbd_type = 1;
557 /* Get the current keyboard backlight mode */
558 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
559 /* Get the current time (1-60 seconds) */
560 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
561 /* Flag as supported */
562 dev->kbd_illum_supported = 1;
563}
564
565static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
566{
567 u32 result;
568
569 if (!sci_open(dev))
570 return -EIO;
571
572 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
573 sci_close(dev);
574 if (result == TOS_FAILURE)
575 pr_err("ACPI call to set KBD backlight status failed\n");
576 else if (result == TOS_NOT_SUPPORTED)
577 return -ENODEV;
578
579 return result == TOS_SUCCESS ? 0 : -EIO;
580}
581
582static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
583{
584 u32 result;
585
586 if (!sci_open(dev))
587 return -EIO;
588
589 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
590 sci_close(dev);
591 if (result == TOS_FAILURE)
592 pr_err("ACPI call to get KBD backlight status failed\n");
593 else if (result == TOS_NOT_SUPPORTED)
594 return -ENODEV;
595
596 return result == TOS_SUCCESS ? 0 : -EIO;
597}
598
599static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
600{
601 struct toshiba_acpi_dev *dev = container_of(cdev,
602 struct toshiba_acpi_dev, kbd_led);
603 u32 result;
604 u32 state;
605
606 /* Check the keyboard backlight state */
607 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
608 if (result == TOS_FAILURE) {
609 pr_err("ACPI call to get the keyboard backlight failed\n");
610 return LED_OFF;
611 } else if (result != TOS_SUCCESS) {
612 return LED_OFF;
613 }
614
615 return state ? LED_FULL : LED_OFF;
616}
617
618static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
619 enum led_brightness brightness)
620{
621 struct toshiba_acpi_dev *dev = container_of(cdev,
622 struct toshiba_acpi_dev, kbd_led);
623 u32 result;
624 u32 state;
625
626 /* Set the keyboard backlight state */
627 state = brightness ? 1 : 0;
628 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
629 if (result == TOS_FAILURE)
630 pr_err("ACPI call to set KBD Illumination mode failed\n");
631}
632
633/* TouchPad support */
634static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
635{
636 u32 result;
637
638 if (!sci_open(dev))
639 return -EIO;
640
641 result = sci_write(dev, SCI_TOUCHPAD, state);
642 sci_close(dev);
643 if (result == TOS_FAILURE)
644 pr_err("ACPI call to set the touchpad failed\n");
645 else if (result == TOS_NOT_SUPPORTED)
646 return -ENODEV;
647
648 return result == TOS_SUCCESS ? 0 : -EIO;
649}
650
651static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
652{
653 u32 result;
654
655 if (!sci_open(dev))
656 return -EIO;
657
658 result = sci_read(dev, SCI_TOUCHPAD, state);
659 sci_close(dev);
660 if (result == TOS_FAILURE)
661 pr_err("ACPI call to query the touchpad failed\n");
662 else if (result == TOS_NOT_SUPPORTED)
663 return -ENODEV;
664
665 return result == TOS_SUCCESS ? 0 : -EIO;
666}
667
668/* Eco Mode support */
669static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
670{
671 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
672 u32 out[TCI_WORDS];
673 acpi_status status;
674
675 dev->eco_supported = 0;
676 dev->eco_led_registered = false;
677
678 status = tci_raw(dev, in, out);
679 if (ACPI_FAILURE(status)) {
680 pr_err("ACPI call to get ECO led failed\n");
681 return;
682 }
683
684 if (out[0] == TOS_INPUT_DATA_ERROR) {
685 /*
686 * If we receive 0x8300 (Input Data Error), it means that the
687 * LED device is present, but that we just screwed the input
688 * parameters.
689 *
690 * Let's query the status of the LED to see if we really have a
691 * success response, indicating the actual presense of the LED,
692 * bail out otherwise.
693 */
694 in[3] = 1;
695 status = tci_raw(dev, in, out);
696 if (ACPI_FAILURE(status)) {
697 pr_err("ACPI call to get ECO led failed\n");
698 return;
699 }
700
701 if (out[0] != TOS_SUCCESS)
702 return;
703
704 dev->eco_supported = 1;
705 }
706}
707
708static enum led_brightness
709toshiba_eco_mode_get_status(struct led_classdev *cdev)
710{
711 struct toshiba_acpi_dev *dev = container_of(cdev,
712 struct toshiba_acpi_dev, eco_led);
713 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
714 u32 out[TCI_WORDS];
715 acpi_status status;
716
717 status = tci_raw(dev, in, out);
718 if (ACPI_FAILURE(status)) {
719 pr_err("ACPI call to get ECO led failed\n");
720 return LED_OFF;
721 }
722
723 if (out[0] != TOS_SUCCESS)
724 return LED_OFF;
725
726 return out[2] ? LED_FULL : LED_OFF;
727}
728
729static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
730 enum led_brightness brightness)
731{
732 struct toshiba_acpi_dev *dev = container_of(cdev,
733 struct toshiba_acpi_dev, eco_led);
734 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
735 u32 out[TCI_WORDS];
736 acpi_status status;
737
738 /* Switch the Eco Mode led on/off */
739 in[2] = (brightness) ? 1 : 0;
740 status = tci_raw(dev, in, out);
741 if (ACPI_FAILURE(status))
742 pr_err("ACPI call to set ECO led failed\n");
743}
744
745/* Accelerometer support */
746static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
747{
748 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
749 u32 out[TCI_WORDS];
750 acpi_status status;
751
752 dev->accelerometer_supported = 0;
753
754 /*
755 * Check if the accelerometer call exists,
756 * this call also serves as initialization
757 */
758 status = tci_raw(dev, in, out);
759 if (ACPI_FAILURE(status)) {
760 pr_err("ACPI call to query the accelerometer failed\n");
761 return;
762 }
763
764 if (out[0] != TOS_SUCCESS)
765 return;
766
767 dev->accelerometer_supported = 1;
768}
769
770static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
771 u32 *xy, u32 *z)
772{
773 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
774 u32 out[TCI_WORDS];
775 acpi_status status;
776
777 /* Check the Accelerometer status */
778 status = tci_raw(dev, in, out);
779 if (ACPI_FAILURE(status)) {
780 pr_err("ACPI call to query the accelerometer failed\n");
781 return -EIO;
782 }
783
784 if (out[0] == TOS_NOT_SUPPORTED)
785 return -ENODEV;
786
787 if (out[0] != TOS_SUCCESS)
788 return -EIO;
789
790 *xy = out[2];
791 *z = out[4];
792
793 return 0;
794}
795
796/* Sleep (Charge and Music) utilities support */
797static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
798{
799 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
800 u32 out[TCI_WORDS];
801 acpi_status status;
802
803 dev->usb_sleep_charge_supported = 0;
804
805 if (!sci_open(dev))
806 return;
807
808 status = tci_raw(dev, in, out);
809 if (ACPI_FAILURE(status)) {
810 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
811 sci_close(dev);
812 return;
813 }
814
815 if (out[0] != TOS_SUCCESS) {
816 sci_close(dev);
817 return;
818 }
819
820 dev->usbsc_mode_base = out[4];
821
822 in[5] = SCI_USB_CHARGE_BAT_LVL;
823 status = tci_raw(dev, in, out);
824 sci_close(dev);
825 if (ACPI_FAILURE(status)) {
826 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
827 return;
828 }
829
830 if (out[0] != TOS_SUCCESS)
831 return;
832
833 dev->usbsc_bat_level = out[2];
834 /* Flag as supported */
835 dev->usb_sleep_charge_supported = 1;
836}
837
838static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
839 u32 *mode)
840{
841 u32 result;
842
843 if (!sci_open(dev))
844 return -EIO;
845
846 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
847 sci_close(dev);
848 if (result == TOS_FAILURE)
849 pr_err("ACPI call to set USB S&C mode failed\n");
850 else if (result == TOS_NOT_SUPPORTED)
851 return -ENODEV;
852
853 return result == TOS_SUCCESS ? 0 : -EIO;
854}
855
856static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
857 u32 mode)
858{
859 u32 result;
860
861 if (!sci_open(dev))
862 return -EIO;
863
864 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
865 sci_close(dev);
866 if (result == TOS_FAILURE)
867 pr_err("ACPI call to set USB S&C mode failed\n");
868 else if (result == TOS_NOT_SUPPORTED)
869 return -ENODEV;
870
871 return result == TOS_SUCCESS ? 0 : -EIO;
872}
873
874static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
875 u32 *mode)
876{
877 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
878 u32 out[TCI_WORDS];
879 acpi_status status;
880
881 if (!sci_open(dev))
882 return -EIO;
883
884 in[5] = SCI_USB_CHARGE_BAT_LVL;
885 status = tci_raw(dev, in, out);
886 sci_close(dev);
887 if (ACPI_FAILURE(status)) {
888 pr_err("ACPI call to get USB S&C battery level failed\n");
889 return -EIO;
890 }
891
892 if (out[0] == TOS_NOT_SUPPORTED)
893 return -ENODEV;
894
895 if (out[0] != TOS_SUCCESS)
896 return -EIO;
897
898 *mode = out[2];
899
900 return 0;
901
902}
903
904static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
905 u32 mode)
906{
907 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
908 u32 out[TCI_WORDS];
909 acpi_status status;
910
911 if (!sci_open(dev))
912 return -EIO;
913
914 in[2] = mode;
915 in[5] = SCI_USB_CHARGE_BAT_LVL;
916 status = tci_raw(dev, in, out);
917 sci_close(dev);
918 if (ACPI_FAILURE(status)) {
919 pr_err("ACPI call to set USB S&C battery level failed\n");
920 return -EIO;
921 }
922
923 if (out[0] == TOS_NOT_SUPPORTED)
924 return -ENODEV;
925
926 return out[0] == TOS_SUCCESS ? 0 : -EIO;
927}
928
929static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
930 u32 *state)
931{
932 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
933 u32 out[TCI_WORDS];
934 acpi_status status;
935
936 if (!sci_open(dev))
937 return -EIO;
938
939 in[5] = SCI_USB_CHARGE_RAPID_DSP;
940 status = tci_raw(dev, in, out);
941 sci_close(dev);
942 if (ACPI_FAILURE(status)) {
943 pr_err("ACPI call to get USB Rapid Charge failed\n");
944 return -EIO;
945 }
946
947 if (out[0] == TOS_NOT_SUPPORTED)
948 return -ENODEV;
949
950 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
951 return -EIO;
952
953 *state = out[2];
954
955 return 0;
956}
957
958static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
959 u32 state)
960{
961 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
962 u32 out[TCI_WORDS];
963 acpi_status status;
964
965 if (!sci_open(dev))
966 return -EIO;
967
968 in[2] = state;
969 in[5] = SCI_USB_CHARGE_RAPID_DSP;
970 status = tci_raw(dev, in, out);
971 sci_close(dev);
972 if (ACPI_FAILURE(status)) {
973 pr_err("ACPI call to set USB Rapid Charge failed\n");
974 return -EIO;
975 }
976
977 if (out[0] == TOS_NOT_SUPPORTED)
978 return -ENODEV;
979
980 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
981}
982
983static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
984{
985 u32 result;
986
987 if (!sci_open(dev))
988 return -EIO;
989
990 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
991 sci_close(dev);
992 if (result == TOS_FAILURE)
993 pr_err("ACPI call to get Sleep and Music failed\n");
994 else if (result == TOS_NOT_SUPPORTED)
995 return -ENODEV;
996
997 return result == TOS_SUCCESS ? 0 : -EIO;
998}
999
1000static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1001{
1002 u32 result;
1003
1004 if (!sci_open(dev))
1005 return -EIO;
1006
1007 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1008 sci_close(dev);
1009 if (result == TOS_FAILURE)
1010 pr_err("ACPI call to set Sleep and Music failed\n");
1011 else if (result == TOS_NOT_SUPPORTED)
1012 return -ENODEV;
1013
1014 return result == TOS_SUCCESS ? 0 : -EIO;
1015}
1016
1017/* Keyboard function keys */
1018static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1019{
1020 u32 result;
1021
1022 if (!sci_open(dev))
1023 return -EIO;
1024
1025 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1026 sci_close(dev);
1027 if (result == TOS_FAILURE)
1028 pr_err("ACPI call to get KBD function keys failed\n");
1029 else if (result == TOS_NOT_SUPPORTED)
1030 return -ENODEV;
1031
1032 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1033}
1034
1035static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1036{
1037 u32 result;
1038
1039 if (!sci_open(dev))
1040 return -EIO;
1041
1042 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1043 sci_close(dev);
1044 if (result == TOS_FAILURE)
1045 pr_err("ACPI call to set KBD function keys failed\n");
1046 else if (result == TOS_NOT_SUPPORTED)
1047 return -ENODEV;
1048
1049 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1050}
1051
1052/* Panel Power ON */
1053static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1054{
1055 u32 result;
1056
1057 if (!sci_open(dev))
1058 return -EIO;
1059
1060 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1061 sci_close(dev);
1062 if (result == TOS_FAILURE)
1063 pr_err("ACPI call to get Panel Power ON failed\n");
1064 else if (result == TOS_NOT_SUPPORTED)
1065 return -ENODEV;
1066
1067 return result == TOS_SUCCESS ? 0 : -EIO;
1068}
1069
1070static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1071{
1072 u32 result;
1073
1074 if (!sci_open(dev))
1075 return -EIO;
1076
1077 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1078 sci_close(dev);
1079 if (result == TOS_FAILURE)
1080 pr_err("ACPI call to set Panel Power ON failed\n");
1081 else if (result == TOS_NOT_SUPPORTED)
1082 return -ENODEV;
1083
1084 return result == TOS_SUCCESS ? 0 : -EIO;
1085}
1086
1087/* USB Three */
1088static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1089{
1090 u32 result;
1091
1092 if (!sci_open(dev))
1093 return -EIO;
1094
1095 result = sci_read(dev, SCI_USB_THREE, state);
1096 sci_close(dev);
1097 if (result == TOS_FAILURE)
1098 pr_err("ACPI call to get USB 3 failed\n");
1099 else if (result == TOS_NOT_SUPPORTED)
1100 return -ENODEV;
1101
1102 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1103}
1104
1105static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1106{
1107 u32 result;
1108
1109 if (!sci_open(dev))
1110 return -EIO;
1111
1112 result = sci_write(dev, SCI_USB_THREE, state);
1113 sci_close(dev);
1114 if (result == TOS_FAILURE)
1115 pr_err("ACPI call to set USB 3 failed\n");
1116 else if (result == TOS_NOT_SUPPORTED)
1117 return -ENODEV;
1118
1119 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1120}
1121
1122/* Hotkey Event type */
1123static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1124 u32 *type)
1125{
1126 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1127 u32 out[TCI_WORDS];
1128 acpi_status status;
1129
1130 status = tci_raw(dev, in, out);
1131 if (ACPI_FAILURE(status)) {
1132 pr_err("ACPI call to get System type failed\n");
1133 return -EIO;
1134 }
1135
1136 if (out[0] == TOS_NOT_SUPPORTED)
1137 return -ENODEV;
1138
1139 if (out[0] != TOS_SUCCESS)
1140 return -EIO;
1141
1142 *type = out[3];
1143
1144 return 0;
1145}
1146
1147/* Wireless status (RFKill, WLAN, BT, WWAN) */
1148static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1149{
1150 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1151 u32 out[TCI_WORDS];
1152 acpi_status status;
1153
1154 in[3] = HCI_WIRELESS_STATUS;
1155 status = tci_raw(dev, in, out);
1156
1157 if (ACPI_FAILURE(status)) {
1158 pr_err("ACPI call to get Wireless status failed\n");
1159 return -EIO;
1160 }
1161
1162 if (out[0] == TOS_NOT_SUPPORTED)
1163 return -ENODEV;
1164
1165 if (out[0] != TOS_SUCCESS)
1166 return -EIO;
1167
1168 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1169
1170 return 0;
1171}
1172
1173/* WWAN */
1174static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1175{
1176 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1177 u32 out[TCI_WORDS];
1178 acpi_status status;
1179
1180 dev->wwan_supported = 0;
1181
1182 /*
1183 * WWAN support can be queried by setting the in[3] value to
1184 * HCI_WIRELESS_WWAN (0x03).
1185 *
1186 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1187 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1188 *
1189 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1190 * or TOS_NOT_SUPPORTED (0x8000).
1191 */
1192 in[3] = HCI_WIRELESS_WWAN;
1193 status = tci_raw(dev, in, out);
1194 if (ACPI_FAILURE(status)) {
1195 pr_err("ACPI call to get WWAN status failed\n");
1196 return;
1197 }
1198
1199 if (out[0] != TOS_SUCCESS)
1200 return;
1201
1202 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1203}
1204
1205static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1206{
1207 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1208 u32 out[TCI_WORDS];
1209 acpi_status status;
1210
1211 in[3] = HCI_WIRELESS_WWAN_STATUS;
1212 status = tci_raw(dev, in, out);
1213 if (ACPI_FAILURE(status)) {
1214 pr_err("ACPI call to set WWAN status failed\n");
1215 return -EIO;
1216 }
1217
1218 if (out[0] == TOS_NOT_SUPPORTED)
1219 return -ENODEV;
1220
1221 if (out[0] != TOS_SUCCESS)
1222 return -EIO;
1223
1224 /*
1225 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1226 * (de)activate the device, but some others need the
1227 * HCI_WIRELESS_WWAN_POWER call as well.
1228 */
1229 in[3] = HCI_WIRELESS_WWAN_POWER;
1230 status = tci_raw(dev, in, out);
1231 if (ACPI_FAILURE(status)) {
1232 pr_err("ACPI call to set WWAN power failed\n");
1233 return -EIO;
1234 }
1235
1236 if (out[0] == TOS_NOT_SUPPORTED)
1237 return -ENODEV;
1238
1239 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1240}
1241
1242/* Cooling Method */
1243static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1244{
1245 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1246 u32 out[TCI_WORDS];
1247 acpi_status status;
1248
1249 dev->cooling_method_supported = 0;
1250 dev->max_cooling_method = 0;
1251
1252 status = tci_raw(dev, in, out);
1253 if (ACPI_FAILURE(status)) {
1254 pr_err("ACPI call to get Cooling Method failed\n");
1255 return;
1256 }
1257
1258 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1259 return;
1260
1261 dev->cooling_method_supported = 1;
1262 dev->max_cooling_method = out[3];
1263}
1264
1265static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1266{
1267 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1268
1269 if (result == TOS_FAILURE)
1270 pr_err("ACPI call to get Cooling Method failed\n");
1271
1272 if (result == TOS_NOT_SUPPORTED)
1273 return -ENODEV;
1274
1275 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1276}
1277
1278static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1279{
1280 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1281
1282 if (result == TOS_FAILURE)
1283 pr_err("ACPI call to set Cooling Method failed\n");
1284
1285 if (result == TOS_NOT_SUPPORTED)
1286 return -ENODEV;
1287
1288 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1289}
1290
1291/* Transflective Backlight */
1292static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1293{
1294 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1295
1296 if (result == TOS_FAILURE)
1297 pr_err("ACPI call to get Transflective Backlight failed\n");
1298 else if (result == TOS_NOT_SUPPORTED)
1299 return -ENODEV;
1300
1301 return result == TOS_SUCCESS ? 0 : -EIO;
1302}
1303
1304static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1305{
1306 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1307
1308 if (result == TOS_FAILURE)
1309 pr_err("ACPI call to set Transflective Backlight failed\n");
1310 else if (result == TOS_NOT_SUPPORTED)
1311 return -ENODEV;
1312
1313 return result == TOS_SUCCESS ? 0 : -EIO;
1314}
1315
1316static struct proc_dir_entry *toshiba_proc_dir;
1317
1318/* LCD Brightness */
1319static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1320{
1321 int brightness = 0;
1322 u32 result;
1323 u32 value;
1324
1325 if (dev->tr_backlight_supported) {
1326 int ret = get_tr_backlight_status(dev, &value);
1327
1328 if (ret)
1329 return ret;
1330 if (value)
1331 return 0;
1332 brightness++;
1333 }
1334
1335 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1336 if (result == TOS_FAILURE)
1337 pr_err("ACPI call to get LCD Brightness failed\n");
1338 else if (result == TOS_NOT_SUPPORTED)
1339 return -ENODEV;
1340
1341 return result == TOS_SUCCESS ?
1342 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1343 -EIO;
1344}
1345
1346static int get_lcd_brightness(struct backlight_device *bd)
1347{
1348 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1349
1350 return __get_lcd_brightness(dev);
1351}
1352
1353static int lcd_proc_show(struct seq_file *m, void *v)
1354{
1355 struct toshiba_acpi_dev *dev = m->private;
1356 int levels;
1357 int value;
1358
1359 if (!dev->backlight_dev)
1360 return -ENODEV;
1361
1362 levels = dev->backlight_dev->props.max_brightness + 1;
1363 value = get_lcd_brightness(dev->backlight_dev);
1364 if (value < 0) {
1365 pr_err("Error reading LCD brightness\n");
1366 return value;
1367 }
1368
1369 seq_printf(m, "brightness: %d\n", value);
1370 seq_printf(m, "brightness_levels: %d\n", levels);
1371
1372 return 0;
1373}
1374
1375static int lcd_proc_open(struct inode *inode, struct file *file)
1376{
1377 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1378}
1379
1380static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1381{
1382 u32 result;
1383
1384 if (dev->tr_backlight_supported) {
1385 int ret = set_tr_backlight_status(dev, !value);
1386
1387 if (ret)
1388 return ret;
1389 if (value)
1390 value--;
1391 }
1392
1393 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1394 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1395 if (result == TOS_FAILURE)
1396 pr_err("ACPI call to set LCD Brightness failed\n");
1397 else if (result == TOS_NOT_SUPPORTED)
1398 return -ENODEV;
1399
1400 return result == TOS_SUCCESS ? 0 : -EIO;
1401}
1402
1403static int set_lcd_status(struct backlight_device *bd)
1404{
1405 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1406
1407 return set_lcd_brightness(dev, bd->props.brightness);
1408}
1409
1410static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1411 size_t count, loff_t *pos)
1412{
1413 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1414 char cmd[42];
1415 size_t len;
1416 int levels;
1417 int value;
1418
1419 len = min(count, sizeof(cmd) - 1);
1420 if (copy_from_user(cmd, buf, len))
1421 return -EFAULT;
1422 cmd[len] = '\0';
1423
1424 levels = dev->backlight_dev->props.max_brightness + 1;
1425 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1426 value < 0 && value > levels)
1427 return -EINVAL;
1428
1429 if (set_lcd_brightness(dev, value))
1430 return -EIO;
1431
1432 return count;
1433}
1434
1435static const struct file_operations lcd_proc_fops = {
1436 .owner = THIS_MODULE,
1437 .open = lcd_proc_open,
1438 .read = seq_read,
1439 .llseek = seq_lseek,
1440 .release = single_release,
1441 .write = lcd_proc_write,
1442};
1443
1444/* Video-Out */
1445static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1446{
1447 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1448
1449 if (result == TOS_FAILURE)
1450 pr_err("ACPI call to get Video-Out failed\n");
1451 else if (result == TOS_NOT_SUPPORTED)
1452 return -ENODEV;
1453
1454 return result == TOS_SUCCESS ? 0 : -EIO;
1455}
1456
1457static int video_proc_show(struct seq_file *m, void *v)
1458{
1459 struct toshiba_acpi_dev *dev = m->private;
1460 int is_lcd, is_crt, is_tv;
1461 u32 value;
1462
1463 if (get_video_status(dev, &value))
1464 return -EIO;
1465
1466 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1467 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1468 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1469
1470 seq_printf(m, "lcd_out: %d\n", is_lcd);
1471 seq_printf(m, "crt_out: %d\n", is_crt);
1472 seq_printf(m, "tv_out: %d\n", is_tv);
1473
1474 return 0;
1475}
1476
1477static int video_proc_open(struct inode *inode, struct file *file)
1478{
1479 return single_open(file, video_proc_show, PDE_DATA(inode));
1480}
1481
1482static ssize_t video_proc_write(struct file *file, const char __user *buf,
1483 size_t count, loff_t *pos)
1484{
1485 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1486 char *buffer;
1487 char *cmd;
1488 int lcd_out, crt_out, tv_out;
1489 int remain = count;
1490 int value;
1491 int ret;
1492 u32 video_out;
1493
1494 cmd = memdup_user_nul(buf, count);
1495 if (IS_ERR(cmd))
1496 return PTR_ERR(cmd);
1497
1498 buffer = cmd;
1499
1500 /*
1501 * Scan expression. Multiple expressions may be delimited with ;
1502 * NOTE: To keep scanning simple, invalid fields are ignored.
1503 */
1504 while (remain) {
1505 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1506 lcd_out = value & 1;
1507 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1508 crt_out = value & 1;
1509 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1510 tv_out = value & 1;
1511 /* Advance to one character past the next ; */
1512 do {
1513 ++buffer;
1514 --remain;
1515 } while (remain && *(buffer - 1) != ';');
1516 }
1517
1518 kfree(cmd);
1519
1520 lcd_out = crt_out = tv_out = -1;
1521 ret = get_video_status(dev, &video_out);
1522 if (!ret) {
1523 unsigned int new_video_out = video_out;
1524
1525 if (lcd_out != -1)
1526 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1527 if (crt_out != -1)
1528 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1529 if (tv_out != -1)
1530 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1531 /*
1532 * To avoid unnecessary video disruption, only write the new
1533 * video setting if something changed.
1534 */
1535 if (new_video_out != video_out)
1536 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1537 }
1538
1539 return ret ? -EIO : count;
1540}
1541
1542static const struct file_operations video_proc_fops = {
1543 .owner = THIS_MODULE,
1544 .open = video_proc_open,
1545 .read = seq_read,
1546 .llseek = seq_lseek,
1547 .release = single_release,
1548 .write = video_proc_write,
1549};
1550
1551/* Fan status */
1552static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1553{
1554 u32 result = hci_read(dev, HCI_FAN, status);
1555
1556 if (result == TOS_FAILURE)
1557 pr_err("ACPI call to get Fan status failed\n");
1558 else if (result == TOS_NOT_SUPPORTED)
1559 return -ENODEV;
1560
1561 return result == TOS_SUCCESS ? 0 : -EIO;
1562}
1563
1564static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1565{
1566 u32 result = hci_write(dev, HCI_FAN, status);
1567
1568 if (result == TOS_FAILURE)
1569 pr_err("ACPI call to set Fan status failed\n");
1570 else if (result == TOS_NOT_SUPPORTED)
1571 return -ENODEV;
1572
1573 return result == TOS_SUCCESS ? 0 : -EIO;
1574}
1575
1576static int fan_proc_show(struct seq_file *m, void *v)
1577{
1578 struct toshiba_acpi_dev *dev = m->private;
1579 u32 value;
1580
1581 if (get_fan_status(dev, &value))
1582 return -EIO;
1583
1584 seq_printf(m, "running: %d\n", (value > 0));
1585 seq_printf(m, "force_on: %d\n", dev->force_fan);
1586
1587 return 0;
1588}
1589
1590static int fan_proc_open(struct inode *inode, struct file *file)
1591{
1592 return single_open(file, fan_proc_show, PDE_DATA(inode));
1593}
1594
1595static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1596 size_t count, loff_t *pos)
1597{
1598 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1599 char cmd[42];
1600 size_t len;
1601 int value;
1602
1603 len = min(count, sizeof(cmd) - 1);
1604 if (copy_from_user(cmd, buf, len))
1605 return -EFAULT;
1606 cmd[len] = '\0';
1607
1608 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1609 value != 0 && value != 1)
1610 return -EINVAL;
1611
1612 if (set_fan_status(dev, value))
1613 return -EIO;
1614
1615 dev->force_fan = value;
1616
1617 return count;
1618}
1619
1620static const struct file_operations fan_proc_fops = {
1621 .owner = THIS_MODULE,
1622 .open = fan_proc_open,
1623 .read = seq_read,
1624 .llseek = seq_lseek,
1625 .release = single_release,
1626 .write = fan_proc_write,
1627};
1628
1629static int keys_proc_show(struct seq_file *m, void *v)
1630{
1631 struct toshiba_acpi_dev *dev = m->private;
1632
1633 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1634 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1635
1636 return 0;
1637}
1638
1639static int keys_proc_open(struct inode *inode, struct file *file)
1640{
1641 return single_open(file, keys_proc_show, PDE_DATA(inode));
1642}
1643
1644static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1645 size_t count, loff_t *pos)
1646{
1647 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1648 char cmd[42];
1649 size_t len;
1650 int value;
1651
1652 len = min(count, sizeof(cmd) - 1);
1653 if (copy_from_user(cmd, buf, len))
1654 return -EFAULT;
1655 cmd[len] = '\0';
1656
1657 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1658 dev->key_event_valid = 0;
1659 else
1660 return -EINVAL;
1661
1662 return count;
1663}
1664
1665static const struct file_operations keys_proc_fops = {
1666 .owner = THIS_MODULE,
1667 .open = keys_proc_open,
1668 .read = seq_read,
1669 .llseek = seq_lseek,
1670 .release = single_release,
1671 .write = keys_proc_write,
1672};
1673
1674static int __maybe_unused version_proc_show(struct seq_file *m, void *v)
1675{
1676 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1677 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1678 return 0;
1679}
1680
1681/*
1682 * Proc and module init
1683 */
1684
1685#define PROC_TOSHIBA "toshiba"
1686
1687static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1688{
1689 if (dev->backlight_dev)
1690 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1691 &lcd_proc_fops, dev);
1692 if (dev->video_supported)
1693 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1694 &video_proc_fops, dev);
1695 if (dev->fan_supported)
1696 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1697 &fan_proc_fops, dev);
1698 if (dev->hotkey_dev)
1699 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1700 &keys_proc_fops, dev);
1701 proc_create_single_data("version", S_IRUGO, toshiba_proc_dir,
1702 version_proc_show, dev);
1703}
1704
1705static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1706{
1707 if (dev->backlight_dev)
1708 remove_proc_entry("lcd", toshiba_proc_dir);
1709 if (dev->video_supported)
1710 remove_proc_entry("video", toshiba_proc_dir);
1711 if (dev->fan_supported)
1712 remove_proc_entry("fan", toshiba_proc_dir);
1713 if (dev->hotkey_dev)
1714 remove_proc_entry("keys", toshiba_proc_dir);
1715 remove_proc_entry("version", toshiba_proc_dir);
1716}
1717
1718static const struct backlight_ops toshiba_backlight_data = {
1719 .options = BL_CORE_SUSPENDRESUME,
1720 .get_brightness = get_lcd_brightness,
1721 .update_status = set_lcd_status,
1722};
1723
1724/* Keyboard backlight work */
1725static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1726
1727static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1728
1729/*
1730 * Sysfs files
1731 */
1732static ssize_t version_show(struct device *dev,
1733 struct device_attribute *attr, char *buf)
1734{
1735 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1736}
1737static DEVICE_ATTR_RO(version);
1738
1739static ssize_t fan_store(struct device *dev,
1740 struct device_attribute *attr,
1741 const char *buf, size_t count)
1742{
1743 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1744 int state;
1745 int ret;
1746
1747 ret = kstrtoint(buf, 0, &state);
1748 if (ret)
1749 return ret;
1750
1751 if (state != 0 && state != 1)
1752 return -EINVAL;
1753
1754 ret = set_fan_status(toshiba, state);
1755 if (ret)
1756 return ret;
1757
1758 return count;
1759}
1760
1761static ssize_t fan_show(struct device *dev,
1762 struct device_attribute *attr, char *buf)
1763{
1764 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1765 u32 value;
1766 int ret;
1767
1768 ret = get_fan_status(toshiba, &value);
1769 if (ret)
1770 return ret;
1771
1772 return sprintf(buf, "%d\n", value);
1773}
1774static DEVICE_ATTR_RW(fan);
1775
1776static ssize_t kbd_backlight_mode_store(struct device *dev,
1777 struct device_attribute *attr,
1778 const char *buf, size_t count)
1779{
1780 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1781 int mode;
1782 int ret;
1783
1784
1785 ret = kstrtoint(buf, 0, &mode);
1786 if (ret)
1787 return ret;
1788
1789 /* Check for supported modes depending on keyboard backlight type */
1790 if (toshiba->kbd_type == 1) {
1791 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1792 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1793 return -EINVAL;
1794 } else if (toshiba->kbd_type == 2) {
1795 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1796 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1797 mode != SCI_KBD_MODE_OFF)
1798 return -EINVAL;
1799 }
1800
1801 /*
1802 * Set the Keyboard Backlight Mode where:
1803 * Auto - KBD backlight turns off automatically in given time
1804 * FN-Z - KBD backlight "toggles" when hotkey pressed
1805 * ON - KBD backlight is always on
1806 * OFF - KBD backlight is always off
1807 */
1808
1809 /* Only make a change if the actual mode has changed */
1810 if (toshiba->kbd_mode != mode) {
1811 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1812 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1813
1814 /* OR the "base time" to the actual method format */
1815 if (toshiba->kbd_type == 1) {
1816 /* Type 1 requires the current mode */
1817 time |= toshiba->kbd_mode;
1818 } else if (toshiba->kbd_type == 2) {
1819 /* Type 2 requires the desired mode */
1820 time |= mode;
1821 }
1822
1823 ret = toshiba_kbd_illum_status_set(toshiba, time);
1824 if (ret)
1825 return ret;
1826
1827 toshiba->kbd_mode = mode;
1828 toshiba_acpi->kbd_mode = mode;
1829
1830 /*
1831 * Some laptop models with the second generation backlit
1832 * keyboard (type 2) do not generate the keyboard backlight
1833 * changed event (0x92), and thus, the driver will never update
1834 * the sysfs entries.
1835 *
1836 * The event is generated right when changing the keyboard
1837 * backlight mode and the *notify function will set the
1838 * kbd_event_generated to true.
1839 *
1840 * In case the event is not generated, schedule the keyboard
1841 * backlight work to update the sysfs entries and emulate the
1842 * event via genetlink.
1843 */
1844 if (toshiba->kbd_type == 2 &&
1845 !toshiba->kbd_event_generated)
1846 schedule_work(&kbd_bl_work);
1847 }
1848
1849 return count;
1850}
1851
1852static ssize_t kbd_backlight_mode_show(struct device *dev,
1853 struct device_attribute *attr,
1854 char *buf)
1855{
1856 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1857 u32 time;
1858
1859 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1860 return -EIO;
1861
1862 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1863}
1864static DEVICE_ATTR_RW(kbd_backlight_mode);
1865
1866static ssize_t kbd_type_show(struct device *dev,
1867 struct device_attribute *attr, char *buf)
1868{
1869 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1870
1871 return sprintf(buf, "%d\n", toshiba->kbd_type);
1872}
1873static DEVICE_ATTR_RO(kbd_type);
1874
1875static ssize_t available_kbd_modes_show(struct device *dev,
1876 struct device_attribute *attr,
1877 char *buf)
1878{
1879 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1880
1881 if (toshiba->kbd_type == 1)
1882 return sprintf(buf, "0x%x 0x%x\n",
1883 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1884
1885 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1886 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1887}
1888static DEVICE_ATTR_RO(available_kbd_modes);
1889
1890static ssize_t kbd_backlight_timeout_store(struct device *dev,
1891 struct device_attribute *attr,
1892 const char *buf, size_t count)
1893{
1894 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1895 int time;
1896 int ret;
1897
1898 ret = kstrtoint(buf, 0, &time);
1899 if (ret)
1900 return ret;
1901
1902 /* Check for supported values depending on kbd_type */
1903 if (toshiba->kbd_type == 1) {
1904 if (time < 0 || time > 60)
1905 return -EINVAL;
1906 } else if (toshiba->kbd_type == 2) {
1907 if (time < 1 || time > 60)
1908 return -EINVAL;
1909 }
1910
1911 /* Set the Keyboard Backlight Timeout */
1912
1913 /* Only make a change if the actual timeout has changed */
1914 if (toshiba->kbd_time != time) {
1915 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1916 time = time << HCI_MISC_SHIFT;
1917 /* OR the "base time" to the actual method format */
1918 if (toshiba->kbd_type == 1)
1919 time |= SCI_KBD_MODE_FNZ;
1920 else if (toshiba->kbd_type == 2)
1921 time |= SCI_KBD_MODE_AUTO;
1922
1923 ret = toshiba_kbd_illum_status_set(toshiba, time);
1924 if (ret)
1925 return ret;
1926
1927 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1928 }
1929
1930 return count;
1931}
1932
1933static ssize_t kbd_backlight_timeout_show(struct device *dev,
1934 struct device_attribute *attr,
1935 char *buf)
1936{
1937 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1938 u32 time;
1939
1940 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1941 return -EIO;
1942
1943 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1944}
1945static DEVICE_ATTR_RW(kbd_backlight_timeout);
1946
1947static ssize_t touchpad_store(struct device *dev,
1948 struct device_attribute *attr,
1949 const char *buf, size_t count)
1950{
1951 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1952 int state;
1953 int ret;
1954
1955 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1956 ret = kstrtoint(buf, 0, &state);
1957 if (ret)
1958 return ret;
1959 if (state != 0 && state != 1)
1960 return -EINVAL;
1961
1962 ret = toshiba_touchpad_set(toshiba, state);
1963 if (ret)
1964 return ret;
1965
1966 return count;
1967}
1968
1969static ssize_t touchpad_show(struct device *dev,
1970 struct device_attribute *attr, char *buf)
1971{
1972 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1973 u32 state;
1974 int ret;
1975
1976 ret = toshiba_touchpad_get(toshiba, &state);
1977 if (ret < 0)
1978 return ret;
1979
1980 return sprintf(buf, "%i\n", state);
1981}
1982static DEVICE_ATTR_RW(touchpad);
1983
1984static ssize_t usb_sleep_charge_show(struct device *dev,
1985 struct device_attribute *attr, char *buf)
1986{
1987 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1988 u32 mode;
1989 int ret;
1990
1991 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
1992 if (ret < 0)
1993 return ret;
1994
1995 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
1996}
1997
1998static ssize_t usb_sleep_charge_store(struct device *dev,
1999 struct device_attribute *attr,
2000 const char *buf, size_t count)
2001{
2002 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2003 int state;
2004 u32 mode;
2005 int ret;
2006
2007 ret = kstrtoint(buf, 0, &state);
2008 if (ret)
2009 return ret;
2010 /*
2011 * Check for supported values, where:
2012 * 0 - Disabled
2013 * 1 - Alternate (Non USB conformant devices that require more power)
2014 * 2 - Auto (USB conformant devices)
2015 * 3 - Typical
2016 */
2017 if (state != 0 && state != 1 && state != 2 && state != 3)
2018 return -EINVAL;
2019
2020 /* Set the USB charging mode to internal value */
2021 mode = toshiba->usbsc_mode_base;
2022 if (state == 0)
2023 mode |= SCI_USB_CHARGE_DISABLED;
2024 else if (state == 1)
2025 mode |= SCI_USB_CHARGE_ALTERNATE;
2026 else if (state == 2)
2027 mode |= SCI_USB_CHARGE_AUTO;
2028 else if (state == 3)
2029 mode |= SCI_USB_CHARGE_TYPICAL;
2030
2031 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2032 if (ret)
2033 return ret;
2034
2035 return count;
2036}
2037static DEVICE_ATTR_RW(usb_sleep_charge);
2038
2039static ssize_t sleep_functions_on_battery_show(struct device *dev,
2040 struct device_attribute *attr,
2041 char *buf)
2042{
2043 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2044 int bat_lvl, status;
2045 u32 state;
2046 int ret;
2047 int tmp;
2048
2049 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2050 if (ret < 0)
2051 return ret;
2052
2053 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2054 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2055 status = (tmp == 0x4) ? 1 : 0;
2056 /* Determine the battery level set */
2057 bat_lvl = state >> HCI_MISC_SHIFT;
2058
2059 return sprintf(buf, "%d %d\n", status, bat_lvl);
2060}
2061
2062static ssize_t sleep_functions_on_battery_store(struct device *dev,
2063 struct device_attribute *attr,
2064 const char *buf, size_t count)
2065{
2066 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2067 u32 status;
2068 int value;
2069 int ret;
2070 int tmp;
2071
2072 ret = kstrtoint(buf, 0, &value);
2073 if (ret)
2074 return ret;
2075
2076 /*
2077 * Set the status of the function:
2078 * 0 - Disabled
2079 * 1-100 - Enabled
2080 */
2081 if (value < 0 || value > 100)
2082 return -EINVAL;
2083
2084 if (value == 0) {
2085 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2086 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2087 } else {
2088 tmp = value << HCI_MISC_SHIFT;
2089 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2090 }
2091 ret = toshiba_sleep_functions_status_set(toshiba, status);
2092 if (ret < 0)
2093 return ret;
2094
2095 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2096
2097 return count;
2098}
2099static DEVICE_ATTR_RW(sleep_functions_on_battery);
2100
2101static ssize_t usb_rapid_charge_show(struct device *dev,
2102 struct device_attribute *attr, char *buf)
2103{
2104 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2105 u32 state;
2106 int ret;
2107
2108 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2109 if (ret < 0)
2110 return ret;
2111
2112 return sprintf(buf, "%d\n", state);
2113}
2114
2115static ssize_t usb_rapid_charge_store(struct device *dev,
2116 struct device_attribute *attr,
2117 const char *buf, size_t count)
2118{
2119 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2120 int state;
2121 int ret;
2122
2123 ret = kstrtoint(buf, 0, &state);
2124 if (ret)
2125 return ret;
2126 if (state != 0 && state != 1)
2127 return -EINVAL;
2128
2129 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2130 if (ret)
2131 return ret;
2132
2133 return count;
2134}
2135static DEVICE_ATTR_RW(usb_rapid_charge);
2136
2137static ssize_t usb_sleep_music_show(struct device *dev,
2138 struct device_attribute *attr, char *buf)
2139{
2140 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2141 u32 state;
2142 int ret;
2143
2144 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2145 if (ret < 0)
2146 return ret;
2147
2148 return sprintf(buf, "%d\n", state);
2149}
2150
2151static ssize_t usb_sleep_music_store(struct device *dev,
2152 struct device_attribute *attr,
2153 const char *buf, size_t count)
2154{
2155 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2156 int state;
2157 int ret;
2158
2159 ret = kstrtoint(buf, 0, &state);
2160 if (ret)
2161 return ret;
2162 if (state != 0 && state != 1)
2163 return -EINVAL;
2164
2165 ret = toshiba_usb_sleep_music_set(toshiba, state);
2166 if (ret)
2167 return ret;
2168
2169 return count;
2170}
2171static DEVICE_ATTR_RW(usb_sleep_music);
2172
2173static ssize_t kbd_function_keys_show(struct device *dev,
2174 struct device_attribute *attr, char *buf)
2175{
2176 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2177 int mode;
2178 int ret;
2179
2180 ret = toshiba_function_keys_get(toshiba, &mode);
2181 if (ret < 0)
2182 return ret;
2183
2184 return sprintf(buf, "%d\n", mode);
2185}
2186
2187static ssize_t kbd_function_keys_store(struct device *dev,
2188 struct device_attribute *attr,
2189 const char *buf, size_t count)
2190{
2191 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2192 int mode;
2193 int ret;
2194
2195 ret = kstrtoint(buf, 0, &mode);
2196 if (ret)
2197 return ret;
2198 /*
2199 * Check for the function keys mode where:
2200 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2201 * 1 - Special functions (Opposite of the above setting)
2202 */
2203 if (mode != 0 && mode != 1)
2204 return -EINVAL;
2205
2206 ret = toshiba_function_keys_set(toshiba, mode);
2207 if (ret)
2208 return ret;
2209
2210 pr_info("Reboot for changes to KBD Function Keys to take effect");
2211
2212 return count;
2213}
2214static DEVICE_ATTR_RW(kbd_function_keys);
2215
2216static ssize_t panel_power_on_show(struct device *dev,
2217 struct device_attribute *attr, char *buf)
2218{
2219 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2220 u32 state;
2221 int ret;
2222
2223 ret = toshiba_panel_power_on_get(toshiba, &state);
2224 if (ret < 0)
2225 return ret;
2226
2227 return sprintf(buf, "%d\n", state);
2228}
2229
2230static ssize_t panel_power_on_store(struct device *dev,
2231 struct device_attribute *attr,
2232 const char *buf, size_t count)
2233{
2234 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2235 int state;
2236 int ret;
2237
2238 ret = kstrtoint(buf, 0, &state);
2239 if (ret)
2240 return ret;
2241 if (state != 0 && state != 1)
2242 return -EINVAL;
2243
2244 ret = toshiba_panel_power_on_set(toshiba, state);
2245 if (ret)
2246 return ret;
2247
2248 pr_info("Reboot for changes to Panel Power ON to take effect");
2249
2250 return count;
2251}
2252static DEVICE_ATTR_RW(panel_power_on);
2253
2254static ssize_t usb_three_show(struct device *dev,
2255 struct device_attribute *attr, char *buf)
2256{
2257 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2258 u32 state;
2259 int ret;
2260
2261 ret = toshiba_usb_three_get(toshiba, &state);
2262 if (ret < 0)
2263 return ret;
2264
2265 return sprintf(buf, "%d\n", state);
2266}
2267
2268static ssize_t usb_three_store(struct device *dev,
2269 struct device_attribute *attr,
2270 const char *buf, size_t count)
2271{
2272 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2273 int state;
2274 int ret;
2275
2276 ret = kstrtoint(buf, 0, &state);
2277 if (ret)
2278 return ret;
2279 /*
2280 * Check for USB 3 mode where:
2281 * 0 - Disabled (Acts like a USB 2 port, saving power)
2282 * 1 - Enabled
2283 */
2284 if (state != 0 && state != 1)
2285 return -EINVAL;
2286
2287 ret = toshiba_usb_three_set(toshiba, state);
2288 if (ret)
2289 return ret;
2290
2291 pr_info("Reboot for changes to USB 3 to take effect");
2292
2293 return count;
2294}
2295static DEVICE_ATTR_RW(usb_three);
2296
2297static ssize_t cooling_method_show(struct device *dev,
2298 struct device_attribute *attr, char *buf)
2299{
2300 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2301 int state;
2302 int ret;
2303
2304 ret = toshiba_cooling_method_get(toshiba, &state);
2305 if (ret < 0)
2306 return ret;
2307
2308 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2309}
2310
2311static ssize_t cooling_method_store(struct device *dev,
2312 struct device_attribute *attr,
2313 const char *buf, size_t count)
2314{
2315 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2316 int state;
2317 int ret;
2318
2319 ret = kstrtoint(buf, 0, &state);
2320 if (ret)
2321 return ret;
2322
2323 /*
2324 * Check for supported values
2325 * Depending on the laptop model, some only support these two:
2326 * 0 - Maximum Performance
2327 * 1 - Battery Optimized
2328 *
2329 * While some others support all three methods:
2330 * 0 - Maximum Performance
2331 * 1 - Performance
2332 * 2 - Battery Optimized
2333 */
2334 if (state < 0 || state > toshiba->max_cooling_method)
2335 return -EINVAL;
2336
2337 ret = toshiba_cooling_method_set(toshiba, state);
2338 if (ret)
2339 return ret;
2340
2341 return count;
2342}
2343static DEVICE_ATTR_RW(cooling_method);
2344
2345static struct attribute *toshiba_attributes[] = {
2346 &dev_attr_version.attr,
2347 &dev_attr_fan.attr,
2348 &dev_attr_kbd_backlight_mode.attr,
2349 &dev_attr_kbd_type.attr,
2350 &dev_attr_available_kbd_modes.attr,
2351 &dev_attr_kbd_backlight_timeout.attr,
2352 &dev_attr_touchpad.attr,
2353 &dev_attr_usb_sleep_charge.attr,
2354 &dev_attr_sleep_functions_on_battery.attr,
2355 &dev_attr_usb_rapid_charge.attr,
2356 &dev_attr_usb_sleep_music.attr,
2357 &dev_attr_kbd_function_keys.attr,
2358 &dev_attr_panel_power_on.attr,
2359 &dev_attr_usb_three.attr,
2360 &dev_attr_cooling_method.attr,
2361 NULL,
2362};
2363
2364static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2365 struct attribute *attr, int idx)
2366{
2367 struct device *dev = container_of(kobj, struct device, kobj);
2368 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2369 bool exists = true;
2370
2371 if (attr == &dev_attr_fan.attr)
2372 exists = (drv->fan_supported) ? true : false;
2373 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2374 exists = (drv->kbd_illum_supported) ? true : false;
2375 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2376 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2377 else if (attr == &dev_attr_touchpad.attr)
2378 exists = (drv->touchpad_supported) ? true : false;
2379 else if (attr == &dev_attr_usb_sleep_charge.attr)
2380 exists = (drv->usb_sleep_charge_supported) ? true : false;
2381 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2382 exists = (drv->usb_sleep_charge_supported) ? true : false;
2383 else if (attr == &dev_attr_usb_rapid_charge.attr)
2384 exists = (drv->usb_rapid_charge_supported) ? true : false;
2385 else if (attr == &dev_attr_usb_sleep_music.attr)
2386 exists = (drv->usb_sleep_music_supported) ? true : false;
2387 else if (attr == &dev_attr_kbd_function_keys.attr)
2388 exists = (drv->kbd_function_keys_supported) ? true : false;
2389 else if (attr == &dev_attr_panel_power_on.attr)
2390 exists = (drv->panel_power_on_supported) ? true : false;
2391 else if (attr == &dev_attr_usb_three.attr)
2392 exists = (drv->usb_three_supported) ? true : false;
2393 else if (attr == &dev_attr_cooling_method.attr)
2394 exists = (drv->cooling_method_supported) ? true : false;
2395
2396 return exists ? attr->mode : 0;
2397}
2398
2399static const struct attribute_group toshiba_attr_group = {
2400 .is_visible = toshiba_sysfs_is_visible,
2401 .attrs = toshiba_attributes,
2402};
2403
2404static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2405{
2406 /* Update the sysfs entries */
2407 if (sysfs_update_group(&toshiba_acpi->acpi_dev->dev.kobj,
2408 &toshiba_attr_group))
2409 pr_err("Unable to update sysfs entries\n");
2410
2411 /* Notify LED subsystem about keyboard backlight change */
2412 if (toshiba_acpi->kbd_type == 2 &&
2413 toshiba_acpi->kbd_mode != SCI_KBD_MODE_AUTO)
2414 led_classdev_notify_brightness_hw_changed(&toshiba_acpi->kbd_led,
2415 (toshiba_acpi->kbd_mode == SCI_KBD_MODE_ON) ?
2416 LED_FULL : LED_OFF);
2417
2418 /* Emulate the keyboard backlight event */
2419 acpi_bus_generate_netlink_event(toshiba_acpi->acpi_dev->pnp.device_class,
2420 dev_name(&toshiba_acpi->acpi_dev->dev),
2421 0x92, 0);
2422}
2423
2424/*
2425 * IIO device
2426 */
2427
2428enum toshiba_iio_accel_chan {
2429 AXIS_X,
2430 AXIS_Y,
2431 AXIS_Z
2432};
2433
2434static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2435{
2436 u32 xyval, zval;
2437 int ret;
2438
2439 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2440 if (ret < 0)
2441 return ret;
2442
2443 switch (chan) {
2444 case AXIS_X:
2445 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2446 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2447 case AXIS_Y:
2448 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2449 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2450 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2451 case AXIS_Z:
2452 return zval & HCI_ACCEL_DIRECTION_MASK ?
2453 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2454 }
2455
2456 return ret;
2457}
2458
2459static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2460 struct iio_chan_spec const *chan,
2461 int *val, int *val2, long mask)
2462{
2463 int ret;
2464
2465 switch (mask) {
2466 case IIO_CHAN_INFO_RAW:
2467 ret = toshiba_iio_accel_get_axis(chan->channel);
2468 if (ret == -EIO || ret == -ENODEV)
2469 return ret;
2470
2471 *val = ret;
2472
2473 return IIO_VAL_INT;
2474 }
2475
2476 return -EINVAL;
2477}
2478
2479#define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2480 .type = IIO_ACCEL, \
2481 .modified = 1, \
2482 .channel = chan, \
2483 .channel2 = IIO_MOD_##axis, \
2484 .output = 1, \
2485 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2486}
2487
2488static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2489 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2490 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2491 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2492};
2493
2494static const struct iio_info toshiba_iio_accel_info = {
2495 .read_raw = &toshiba_iio_accel_read_raw,
2496};
2497
2498/*
2499 * Misc device
2500 */
2501static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2502{
2503 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2504 regs->edx, regs->esi, regs->edi };
2505 u32 out[TCI_WORDS];
2506 acpi_status status;
2507
2508 status = tci_raw(toshiba_acpi, in, out);
2509 if (ACPI_FAILURE(status)) {
2510 pr_err("ACPI call to query SMM registers failed\n");
2511 return -EIO;
2512 }
2513
2514 /* Fillout the SMM struct with the TCI call results */
2515 regs->eax = out[0];
2516 regs->ebx = out[1];
2517 regs->ecx = out[2];
2518 regs->edx = out[3];
2519 regs->esi = out[4];
2520 regs->edi = out[5];
2521
2522 return 0;
2523}
2524
2525static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2526 unsigned long arg)
2527{
2528 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2529 SMMRegisters regs;
2530 int ret;
2531
2532 if (!argp)
2533 return -EINVAL;
2534
2535 switch (cmd) {
2536 case TOSH_SMM:
2537 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2538 return -EFAULT;
2539 ret = toshiba_acpi_smm_bridge(®s);
2540 if (ret)
2541 return ret;
2542 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2543 return -EFAULT;
2544 break;
2545 case TOSHIBA_ACPI_SCI:
2546 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2547 return -EFAULT;
2548 /* Ensure we are being called with a SCI_{GET, SET} register */
2549 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2550 return -EINVAL;
2551 if (!sci_open(toshiba_acpi))
2552 return -EIO;
2553 ret = toshiba_acpi_smm_bridge(®s);
2554 sci_close(toshiba_acpi);
2555 if (ret)
2556 return ret;
2557 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2558 return -EFAULT;
2559 break;
2560 default:
2561 return -EINVAL;
2562 }
2563
2564 return 0;
2565}
2566
2567static const struct file_operations toshiba_acpi_fops = {
2568 .owner = THIS_MODULE,
2569 .unlocked_ioctl = toshiba_acpi_ioctl,
2570 .llseek = noop_llseek,
2571};
2572
2573/*
2574 * WWAN RFKill handlers
2575 */
2576static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2577{
2578 struct toshiba_acpi_dev *dev = data;
2579 int ret;
2580
2581 ret = toshiba_wireless_status(dev);
2582 if (ret)
2583 return ret;
2584
2585 if (!dev->killswitch)
2586 return 0;
2587
2588 return toshiba_wwan_set(dev, !blocked);
2589}
2590
2591static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2592{
2593 struct toshiba_acpi_dev *dev = data;
2594
2595 if (toshiba_wireless_status(dev))
2596 return;
2597
2598 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2599}
2600
2601static const struct rfkill_ops wwan_rfk_ops = {
2602 .set_block = toshiba_acpi_wwan_set_block,
2603 .poll = toshiba_acpi_wwan_poll,
2604};
2605
2606static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2607{
2608 int ret = toshiba_wireless_status(dev);
2609
2610 if (ret)
2611 return ret;
2612
2613 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2614 &dev->acpi_dev->dev,
2615 RFKILL_TYPE_WWAN,
2616 &wwan_rfk_ops,
2617 dev);
2618 if (!dev->wwan_rfk) {
2619 pr_err("Unable to allocate WWAN rfkill device\n");
2620 return -ENOMEM;
2621 }
2622
2623 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2624
2625 ret = rfkill_register(dev->wwan_rfk);
2626 if (ret) {
2627 pr_err("Unable to register WWAN rfkill device\n");
2628 rfkill_destroy(dev->wwan_rfk);
2629 }
2630
2631 return ret;
2632}
2633
2634/*
2635 * Hotkeys
2636 */
2637static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2638{
2639 acpi_status status;
2640 u32 result;
2641
2642 status = acpi_evaluate_object(dev->acpi_dev->handle,
2643 "ENAB", NULL, NULL);
2644 if (ACPI_FAILURE(status))
2645 return -ENODEV;
2646
2647 /*
2648 * Enable the "Special Functions" mode only if they are
2649 * supported and if they are activated.
2650 */
2651 if (dev->kbd_function_keys_supported && dev->special_functions)
2652 result = hci_write(dev, HCI_HOTKEY_EVENT,
2653 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2654 else
2655 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2656
2657 if (result == TOS_FAILURE)
2658 return -EIO;
2659 else if (result == TOS_NOT_SUPPORTED)
2660 return -ENODEV;
2661
2662 return 0;
2663}
2664
2665static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2666 struct serio *port)
2667{
2668 if (str & I8042_STR_AUXDATA)
2669 return false;
2670
2671 if (unlikely(data == 0xe0))
2672 return false;
2673
2674 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2675 schedule_work(&toshiba_acpi->hotkey_work);
2676 return true;
2677 }
2678
2679 return false;
2680}
2681
2682static void toshiba_acpi_hotkey_work(struct work_struct *work)
2683{
2684 acpi_handle ec_handle = ec_get_handle();
2685 acpi_status status;
2686
2687 if (!ec_handle)
2688 return;
2689
2690 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2691 if (ACPI_FAILURE(status))
2692 pr_err("ACPI NTFY method execution failed\n");
2693}
2694
2695/*
2696 * Returns hotkey scancode, or < 0 on failure.
2697 */
2698static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2699{
2700 unsigned long long value;
2701 acpi_status status;
2702
2703 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2704 NULL, &value);
2705 if (ACPI_FAILURE(status)) {
2706 pr_err("ACPI INFO method execution failed\n");
2707 return -EIO;
2708 }
2709
2710 return value;
2711}
2712
2713static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2714 int scancode)
2715{
2716 if (scancode == 0x100)
2717 return;
2718
2719 /* Act on key press; ignore key release */
2720 if (scancode & 0x80)
2721 return;
2722
2723 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2724 pr_info("Unknown key %x\n", scancode);
2725}
2726
2727static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2728{
2729 if (dev->info_supported) {
2730 int scancode = toshiba_acpi_query_hotkey(dev);
2731
2732 if (scancode < 0) {
2733 pr_err("Failed to query hotkey event\n");
2734 } else if (scancode != 0) {
2735 toshiba_acpi_report_hotkey(dev, scancode);
2736 dev->key_event_valid = 1;
2737 dev->last_key_event = scancode;
2738 }
2739 } else if (dev->system_event_supported) {
2740 u32 result;
2741 u32 value;
2742 int retries = 3;
2743
2744 do {
2745 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2746 switch (result) {
2747 case TOS_SUCCESS:
2748 toshiba_acpi_report_hotkey(dev, (int)value);
2749 dev->key_event_valid = 1;
2750 dev->last_key_event = value;
2751 break;
2752 case TOS_NOT_SUPPORTED:
2753 /*
2754 * This is a workaround for an unresolved
2755 * issue on some machines where system events
2756 * sporadically become disabled.
2757 */
2758 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2759 if (result == TOS_SUCCESS)
2760 pr_notice("Re-enabled hotkeys\n");
2761 /* Fall through */
2762 default:
2763 retries--;
2764 break;
2765 }
2766 } while (retries && result != TOS_FIFO_EMPTY);
2767 }
2768}
2769
2770static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2771{
2772 const struct key_entry *keymap = toshiba_acpi_keymap;
2773 acpi_handle ec_handle;
2774 int error;
2775
2776 if (disable_hotkeys) {
2777 pr_info("Hotkeys disabled by module parameter\n");
2778 return 0;
2779 }
2780
2781 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2782 pr_info("WMI event detected, hotkeys will not be monitored\n");
2783 return 0;
2784 }
2785
2786 error = toshiba_acpi_enable_hotkeys(dev);
2787 if (error)
2788 return error;
2789
2790 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2791 pr_notice("Unable to query Hotkey Event Type\n");
2792
2793 dev->hotkey_dev = input_allocate_device();
2794 if (!dev->hotkey_dev)
2795 return -ENOMEM;
2796
2797 dev->hotkey_dev->name = "Toshiba input device";
2798 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2799 dev->hotkey_dev->id.bustype = BUS_HOST;
2800
2801 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2802 !dev->kbd_function_keys_supported)
2803 keymap = toshiba_acpi_keymap;
2804 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2805 dev->kbd_function_keys_supported)
2806 keymap = toshiba_acpi_alt_keymap;
2807 else
2808 pr_info("Unknown event type received %x\n",
2809 dev->hotkey_event_type);
2810 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2811 if (error)
2812 goto err_free_dev;
2813
2814 /*
2815 * For some machines the SCI responsible for providing hotkey
2816 * notification doesn't fire. We can trigger the notification
2817 * whenever the Fn key is pressed using the NTFY method, if
2818 * supported, so if it's present set up an i8042 key filter
2819 * for this purpose.
2820 */
2821 ec_handle = ec_get_handle();
2822 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2823 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2824
2825 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2826 if (error) {
2827 pr_err("Error installing key filter\n");
2828 goto err_free_dev;
2829 }
2830
2831 dev->ntfy_supported = 1;
2832 }
2833
2834 /*
2835 * Determine hotkey query interface. Prefer using the INFO
2836 * method when it is available.
2837 */
2838 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2839 dev->info_supported = 1;
2840 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2841 dev->system_event_supported = 1;
2842
2843 if (!dev->info_supported && !dev->system_event_supported) {
2844 pr_warn("No hotkey query interface found\n");
2845 goto err_remove_filter;
2846 }
2847
2848 error = input_register_device(dev->hotkey_dev);
2849 if (error) {
2850 pr_info("Unable to register input device\n");
2851 goto err_remove_filter;
2852 }
2853
2854 return 0;
2855
2856 err_remove_filter:
2857 if (dev->ntfy_supported)
2858 i8042_remove_filter(toshiba_acpi_i8042_filter);
2859 err_free_dev:
2860 input_free_device(dev->hotkey_dev);
2861 dev->hotkey_dev = NULL;
2862 return error;
2863}
2864
2865static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2866{
2867 struct backlight_properties props;
2868 int brightness;
2869 int ret;
2870
2871 /*
2872 * Some machines don't support the backlight methods at all, and
2873 * others support it read-only. Either of these is pretty useless,
2874 * so only register the backlight device if the backlight method
2875 * supports both reads and writes.
2876 */
2877 brightness = __get_lcd_brightness(dev);
2878 if (brightness < 0)
2879 return 0;
2880 /*
2881 * If transflective backlight is supported and the brightness is zero
2882 * (lowest brightness level), the set_lcd_brightness function will
2883 * activate the transflective backlight, making the LCD appear to be
2884 * turned off, simply increment the brightness level to avoid that.
2885 */
2886 if (dev->tr_backlight_supported && brightness == 0)
2887 brightness++;
2888 ret = set_lcd_brightness(dev, brightness);
2889 if (ret) {
2890 pr_debug("Backlight method is read-only, disabling backlight support\n");
2891 return 0;
2892 }
2893
2894 /*
2895 * Tell acpi-video-detect code to prefer vendor backlight on all
2896 * systems with transflective backlight and on dmi matched systems.
2897 */
2898 if (dev->tr_backlight_supported ||
2899 dmi_check_system(toshiba_vendor_backlight_dmi))
2900 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2901
2902 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2903 return 0;
2904
2905 memset(&props, 0, sizeof(props));
2906 props.type = BACKLIGHT_PLATFORM;
2907 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2908
2909 /* Adding an extra level and having 0 change to transflective mode */
2910 if (dev->tr_backlight_supported)
2911 props.max_brightness++;
2912
2913 dev->backlight_dev = backlight_device_register("toshiba",
2914 &dev->acpi_dev->dev,
2915 dev,
2916 &toshiba_backlight_data,
2917 &props);
2918 if (IS_ERR(dev->backlight_dev)) {
2919 ret = PTR_ERR(dev->backlight_dev);
2920 pr_err("Could not register toshiba backlight device\n");
2921 dev->backlight_dev = NULL;
2922 return ret;
2923 }
2924
2925 dev->backlight_dev->props.brightness = brightness;
2926 return 0;
2927}
2928
2929static void print_supported_features(struct toshiba_acpi_dev *dev)
2930{
2931 pr_info("Supported laptop features:");
2932
2933 if (dev->hotkey_dev)
2934 pr_cont(" hotkeys");
2935 if (dev->backlight_dev)
2936 pr_cont(" backlight");
2937 if (dev->video_supported)
2938 pr_cont(" video-out");
2939 if (dev->fan_supported)
2940 pr_cont(" fan");
2941 if (dev->tr_backlight_supported)
2942 pr_cont(" transflective-backlight");
2943 if (dev->illumination_supported)
2944 pr_cont(" illumination");
2945 if (dev->kbd_illum_supported)
2946 pr_cont(" keyboard-backlight");
2947 if (dev->touchpad_supported)
2948 pr_cont(" touchpad");
2949 if (dev->eco_supported)
2950 pr_cont(" eco-led");
2951 if (dev->accelerometer_supported)
2952 pr_cont(" accelerometer-axes");
2953 if (dev->usb_sleep_charge_supported)
2954 pr_cont(" usb-sleep-charge");
2955 if (dev->usb_rapid_charge_supported)
2956 pr_cont(" usb-rapid-charge");
2957 if (dev->usb_sleep_music_supported)
2958 pr_cont(" usb-sleep-music");
2959 if (dev->kbd_function_keys_supported)
2960 pr_cont(" special-function-keys");
2961 if (dev->panel_power_on_supported)
2962 pr_cont(" panel-power-on");
2963 if (dev->usb_three_supported)
2964 pr_cont(" usb3");
2965 if (dev->wwan_supported)
2966 pr_cont(" wwan");
2967 if (dev->cooling_method_supported)
2968 pr_cont(" cooling-method");
2969
2970 pr_cont("\n");
2971}
2972
2973static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2974{
2975 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2976
2977 misc_deregister(&dev->miscdev);
2978
2979 remove_toshiba_proc_entries(dev);
2980
2981 if (dev->accelerometer_supported && dev->indio_dev) {
2982 iio_device_unregister(dev->indio_dev);
2983 iio_device_free(dev->indio_dev);
2984 }
2985
2986 if (dev->sysfs_created)
2987 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
2988 &toshiba_attr_group);
2989
2990 if (dev->ntfy_supported) {
2991 i8042_remove_filter(toshiba_acpi_i8042_filter);
2992 cancel_work_sync(&dev->hotkey_work);
2993 }
2994
2995 if (dev->hotkey_dev)
2996 input_unregister_device(dev->hotkey_dev);
2997
2998 backlight_device_unregister(dev->backlight_dev);
2999
3000 if (dev->illumination_led_registered)
3001 led_classdev_unregister(&dev->led_dev);
3002
3003 if (dev->kbd_led_registered)
3004 led_classdev_unregister(&dev->kbd_led);
3005
3006 if (dev->eco_led_registered)
3007 led_classdev_unregister(&dev->eco_led);
3008
3009 if (dev->wwan_rfk) {
3010 rfkill_unregister(dev->wwan_rfk);
3011 rfkill_destroy(dev->wwan_rfk);
3012 }
3013
3014 if (toshiba_acpi)
3015 toshiba_acpi = NULL;
3016
3017 kfree(dev);
3018
3019 return 0;
3020}
3021
3022static const char *find_hci_method(acpi_handle handle)
3023{
3024 if (acpi_has_method(handle, "GHCI"))
3025 return "GHCI";
3026
3027 if (acpi_has_method(handle, "SPFC"))
3028 return "SPFC";
3029
3030 return NULL;
3031}
3032
3033static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3034{
3035 struct toshiba_acpi_dev *dev;
3036 const char *hci_method;
3037 u32 dummy;
3038 int ret = 0;
3039
3040 if (toshiba_acpi)
3041 return -EBUSY;
3042
3043 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3044 TOSHIBA_ACPI_VERSION);
3045
3046 hci_method = find_hci_method(acpi_dev->handle);
3047 if (!hci_method) {
3048 pr_err("HCI interface not found\n");
3049 return -ENODEV;
3050 }
3051
3052 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3053 if (!dev)
3054 return -ENOMEM;
3055 dev->acpi_dev = acpi_dev;
3056 dev->method_hci = hci_method;
3057 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3058 dev->miscdev.name = "toshiba_acpi";
3059 dev->miscdev.fops = &toshiba_acpi_fops;
3060
3061 ret = misc_register(&dev->miscdev);
3062 if (ret) {
3063 pr_err("Failed to register miscdevice\n");
3064 kfree(dev);
3065 return ret;
3066 }
3067
3068 acpi_dev->driver_data = dev;
3069 dev_set_drvdata(&acpi_dev->dev, dev);
3070
3071 /* Query the BIOS for supported features */
3072
3073 /*
3074 * The "Special Functions" are always supported by the laptops
3075 * with the new keyboard layout, query for its presence to help
3076 * determine the keymap layout to use.
3077 */
3078 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3079 dev->kbd_function_keys_supported = !ret;
3080
3081 dev->hotkey_event_type = 0;
3082 if (toshiba_acpi_setup_keyboard(dev))
3083 pr_info("Unable to activate hotkeys\n");
3084
3085 /* Determine whether or not BIOS supports transflective backlight */
3086 ret = get_tr_backlight_status(dev, &dummy);
3087 dev->tr_backlight_supported = !ret;
3088
3089 ret = toshiba_acpi_setup_backlight(dev);
3090 if (ret)
3091 goto error;
3092
3093 toshiba_illumination_available(dev);
3094 if (dev->illumination_supported) {
3095 dev->led_dev.name = "toshiba::illumination";
3096 dev->led_dev.max_brightness = 1;
3097 dev->led_dev.brightness_set = toshiba_illumination_set;
3098 dev->led_dev.brightness_get = toshiba_illumination_get;
3099 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3100 dev->illumination_led_registered = true;
3101 }
3102
3103 toshiba_eco_mode_available(dev);
3104 if (dev->eco_supported) {
3105 dev->eco_led.name = "toshiba::eco_mode";
3106 dev->eco_led.max_brightness = 1;
3107 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3108 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3109 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3110 dev->eco_led_registered = true;
3111 }
3112
3113 toshiba_kbd_illum_available(dev);
3114 /*
3115 * Only register the LED if KBD illumination is supported
3116 * and the keyboard backlight operation mode is set to FN-Z
3117 * or we detect a second gen keyboard backlight
3118 */
3119 if (dev->kbd_illum_supported &&
3120 (dev->kbd_mode == SCI_KBD_MODE_FNZ || dev->kbd_type == 2)) {
3121 dev->kbd_led.name = "toshiba::kbd_backlight";
3122 dev->kbd_led.flags = LED_BRIGHT_HW_CHANGED;
3123 dev->kbd_led.max_brightness = 1;
3124 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3125 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3126 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3127 dev->kbd_led_registered = true;
3128 }
3129
3130 ret = toshiba_touchpad_get(dev, &dummy);
3131 dev->touchpad_supported = !ret;
3132
3133 toshiba_accelerometer_available(dev);
3134 if (dev->accelerometer_supported) {
3135 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3136 if (!dev->indio_dev) {
3137 pr_err("Unable to allocate iio device\n");
3138 goto iio_error;
3139 }
3140
3141 pr_info("Registering Toshiba accelerometer iio device\n");
3142
3143 dev->indio_dev->info = &toshiba_iio_accel_info;
3144 dev->indio_dev->name = "Toshiba accelerometer";
3145 dev->indio_dev->dev.parent = &acpi_dev->dev;
3146 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3147 dev->indio_dev->channels = toshiba_iio_accel_channels;
3148 dev->indio_dev->num_channels =
3149 ARRAY_SIZE(toshiba_iio_accel_channels);
3150
3151 ret = iio_device_register(dev->indio_dev);
3152 if (ret < 0) {
3153 pr_err("Unable to register iio device\n");
3154 iio_device_free(dev->indio_dev);
3155 }
3156 }
3157iio_error:
3158
3159 toshiba_usb_sleep_charge_available(dev);
3160
3161 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3162 dev->usb_rapid_charge_supported = !ret;
3163
3164 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3165 dev->usb_sleep_music_supported = !ret;
3166
3167 ret = toshiba_panel_power_on_get(dev, &dummy);
3168 dev->panel_power_on_supported = !ret;
3169
3170 ret = toshiba_usb_three_get(dev, &dummy);
3171 dev->usb_three_supported = !ret;
3172
3173 ret = get_video_status(dev, &dummy);
3174 dev->video_supported = !ret;
3175
3176 ret = get_fan_status(dev, &dummy);
3177 dev->fan_supported = !ret;
3178
3179 toshiba_wwan_available(dev);
3180 if (dev->wwan_supported)
3181 toshiba_acpi_setup_wwan_rfkill(dev);
3182
3183 toshiba_cooling_method_available(dev);
3184
3185 print_supported_features(dev);
3186
3187 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3188 &toshiba_attr_group);
3189 if (ret) {
3190 dev->sysfs_created = 0;
3191 goto error;
3192 }
3193 dev->sysfs_created = !ret;
3194
3195 create_toshiba_proc_entries(dev);
3196
3197 toshiba_acpi = dev;
3198
3199 return 0;
3200
3201error:
3202 toshiba_acpi_remove(acpi_dev);
3203 return ret;
3204}
3205
3206static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3207{
3208 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3209
3210 switch (event) {
3211 case 0x80: /* Hotkeys and some system events */
3212 /*
3213 * Machines with this WMI GUID aren't supported due to bugs in
3214 * their AML.
3215 *
3216 * Return silently to avoid triggering a netlink event.
3217 */
3218 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3219 return;
3220 toshiba_acpi_process_hotkeys(dev);
3221 break;
3222 case 0x81: /* Dock events */
3223 case 0x82:
3224 case 0x83:
3225 pr_info("Dock event received %x\n", event);
3226 break;
3227 case 0x88: /* Thermal events */
3228 pr_info("Thermal event received\n");
3229 break;
3230 case 0x8f: /* LID closed */
3231 case 0x90: /* LID is closed and Dock has been ejected */
3232 break;
3233 case 0x8c: /* SATA power events */
3234 case 0x8b:
3235 pr_info("SATA power event received %x\n", event);
3236 break;
3237 case 0x92: /* Keyboard backlight mode changed */
3238 dev->kbd_event_generated = true;
3239 /* Update sysfs entries */
3240 if (sysfs_update_group(&acpi_dev->dev.kobj,
3241 &toshiba_attr_group))
3242 pr_err("Unable to update sysfs entries\n");
3243 /* Notify LED subsystem about keyboard backlight change */
3244 if (dev->kbd_type == 2 && dev->kbd_mode != SCI_KBD_MODE_AUTO)
3245 led_classdev_notify_brightness_hw_changed(&dev->kbd_led,
3246 (dev->kbd_mode == SCI_KBD_MODE_ON) ?
3247 LED_FULL : LED_OFF);
3248 break;
3249 case 0x85: /* Unknown */
3250 case 0x8d: /* Unknown */
3251 case 0x8e: /* Unknown */
3252 case 0x94: /* Unknown */
3253 case 0x95: /* Unknown */
3254 default:
3255 pr_info("Unknown event received %x\n", event);
3256 break;
3257 }
3258
3259 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3260 dev_name(&acpi_dev->dev),
3261 event, (event == 0x80) ?
3262 dev->last_key_event : 0);
3263}
3264
3265#ifdef CONFIG_PM_SLEEP
3266static int toshiba_acpi_suspend(struct device *device)
3267{
3268 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3269
3270 if (dev->hotkey_dev) {
3271 u32 result;
3272
3273 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3274 if (result != TOS_SUCCESS)
3275 pr_info("Unable to disable hotkeys\n");
3276 }
3277
3278 return 0;
3279}
3280
3281static int toshiba_acpi_resume(struct device *device)
3282{
3283 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3284
3285 if (dev->hotkey_dev) {
3286 if (toshiba_acpi_enable_hotkeys(dev))
3287 pr_info("Unable to re-enable hotkeys\n");
3288 }
3289
3290 if (dev->wwan_rfk) {
3291 if (!toshiba_wireless_status(dev))
3292 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3293 }
3294
3295 return 0;
3296}
3297#endif
3298
3299static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3300 toshiba_acpi_suspend, toshiba_acpi_resume);
3301
3302static struct acpi_driver toshiba_acpi_driver = {
3303 .name = "Toshiba ACPI driver",
3304 .owner = THIS_MODULE,
3305 .ids = toshiba_device_ids,
3306 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3307 .ops = {
3308 .add = toshiba_acpi_add,
3309 .remove = toshiba_acpi_remove,
3310 .notify = toshiba_acpi_notify,
3311 },
3312 .drv.pm = &toshiba_acpi_pm,
3313};
3314
3315static int __init toshiba_acpi_init(void)
3316{
3317 int ret;
3318
3319 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3320 if (!toshiba_proc_dir) {
3321 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3322 return -ENODEV;
3323 }
3324
3325 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3326 if (ret) {
3327 pr_err("Failed to register ACPI driver: %d\n", ret);
3328 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3329 }
3330
3331 return ret;
3332}
3333
3334static void __exit toshiba_acpi_exit(void)
3335{
3336 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3337 if (toshiba_proc_dir)
3338 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3339}
3340
3341module_init(toshiba_acpi_init);
3342module_exit(toshiba_acpi_exit);