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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/rfkill.h>
51#include <linux/input.h>
52#include <linux/input/sparse-keymap.h>
53#include <linux/leds.h>
54#include <linux/slab.h>
55#include <linux/workqueue.h>
56#include <linux/i8042.h>
57
58#include <asm/uaccess.h>
59
60#include <acpi/acpi_drivers.h>
61
62MODULE_AUTHOR("John Belmonte");
63MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
64MODULE_LICENSE("GPL");
65
66#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
67
68/* Scan code for Fn key on TOS1900 models */
69#define TOS1900_FN_SCAN 0x6e
70
71/* Toshiba ACPI method paths */
72#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
73
74/* Toshiba HCI interface definitions
75 *
76 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
77 * be uniform across all their models. Ideally we would just call
78 * dedicated ACPI methods instead of using this primitive interface.
79 * However the ACPI methods seem to be incomplete in some areas (for
80 * example they allow setting, but not reading, the LCD brightness value),
81 * so this is still useful.
82 */
83
84#define HCI_WORDS 6
85
86/* operations */
87#define HCI_SET 0xff00
88#define HCI_GET 0xfe00
89
90/* return codes */
91#define HCI_SUCCESS 0x0000
92#define HCI_FAILURE 0x1000
93#define HCI_NOT_SUPPORTED 0x8000
94#define HCI_EMPTY 0x8c00
95
96/* registers */
97#define HCI_FAN 0x0004
98#define HCI_TR_BACKLIGHT 0x0005
99#define HCI_SYSTEM_EVENT 0x0016
100#define HCI_VIDEO_OUT 0x001c
101#define HCI_HOTKEY_EVENT 0x001e
102#define HCI_LCD_BRIGHTNESS 0x002a
103#define HCI_WIRELESS 0x0056
104
105/* field definitions */
106#define HCI_HOTKEY_DISABLE 0x0b
107#define HCI_HOTKEY_ENABLE 0x09
108#define HCI_LCD_BRIGHTNESS_BITS 3
109#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
110#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
111#define HCI_VIDEO_OUT_LCD 0x1
112#define HCI_VIDEO_OUT_CRT 0x2
113#define HCI_VIDEO_OUT_TV 0x4
114#define HCI_WIRELESS_KILL_SWITCH 0x01
115#define HCI_WIRELESS_BT_PRESENT 0x0f
116#define HCI_WIRELESS_BT_ATTACH 0x40
117#define HCI_WIRELESS_BT_POWER 0x80
118
119struct toshiba_acpi_dev {
120 struct acpi_device *acpi_dev;
121 const char *method_hci;
122 struct rfkill *bt_rfk;
123 struct input_dev *hotkey_dev;
124 struct work_struct hotkey_work;
125 struct backlight_device *backlight_dev;
126 struct led_classdev led_dev;
127
128 int force_fan;
129 int last_key_event;
130 int key_event_valid;
131
132 unsigned int illumination_supported:1;
133 unsigned int video_supported:1;
134 unsigned int fan_supported:1;
135 unsigned int system_event_supported:1;
136 unsigned int ntfy_supported:1;
137 unsigned int info_supported:1;
138 unsigned int tr_backlight_supported:1;
139
140 struct mutex mutex;
141};
142
143static struct toshiba_acpi_dev *toshiba_acpi;
144
145static const struct acpi_device_id toshiba_device_ids[] = {
146 {"TOS6200", 0},
147 {"TOS6208", 0},
148 {"TOS1900", 0},
149 {"", 0},
150};
151MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
152
153static const struct key_entry toshiba_acpi_keymap[] __devinitconst = {
154 { KE_KEY, 0x101, { KEY_MUTE } },
155 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
156 { KE_KEY, 0x103, { KEY_ZOOMIN } },
157 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
158 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
159 { KE_KEY, 0x13b, { KEY_COFFEE } },
160 { KE_KEY, 0x13c, { KEY_BATTERY } },
161 { KE_KEY, 0x13d, { KEY_SLEEP } },
162 { KE_KEY, 0x13e, { KEY_SUSPEND } },
163 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
164 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
165 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
166 { KE_KEY, 0x142, { KEY_WLAN } },
167 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
168 { KE_KEY, 0x17f, { KEY_FN } },
169 { KE_KEY, 0xb05, { KEY_PROG2 } },
170 { KE_KEY, 0xb06, { KEY_WWW } },
171 { KE_KEY, 0xb07, { KEY_MAIL } },
172 { KE_KEY, 0xb30, { KEY_STOP } },
173 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
174 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
175 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
176 { KE_KEY, 0xb5a, { KEY_MEDIA } },
177 { KE_IGNORE, 0x1430, { KEY_RESERVED } },
178 { KE_END, 0 },
179};
180
181/* utility
182 */
183
184static __inline__ void _set_bit(u32 * word, u32 mask, int value)
185{
186 *word = (*word & ~mask) | (mask * value);
187}
188
189/* acpi interface wrappers
190 */
191
192static int write_acpi_int(const char *methodName, int val)
193{
194 struct acpi_object_list params;
195 union acpi_object in_objs[1];
196 acpi_status status;
197
198 params.count = ARRAY_SIZE(in_objs);
199 params.pointer = in_objs;
200 in_objs[0].type = ACPI_TYPE_INTEGER;
201 in_objs[0].integer.value = val;
202
203 status = acpi_evaluate_object(NULL, (char *)methodName, ¶ms, NULL);
204 return (status == AE_OK) ? 0 : -EIO;
205}
206
207/* Perform a raw HCI call. Here we don't care about input or output buffer
208 * format.
209 */
210static acpi_status hci_raw(struct toshiba_acpi_dev *dev,
211 const u32 in[HCI_WORDS], u32 out[HCI_WORDS])
212{
213 struct acpi_object_list params;
214 union acpi_object in_objs[HCI_WORDS];
215 struct acpi_buffer results;
216 union acpi_object out_objs[HCI_WORDS + 1];
217 acpi_status status;
218 int i;
219
220 params.count = HCI_WORDS;
221 params.pointer = in_objs;
222 for (i = 0; i < HCI_WORDS; ++i) {
223 in_objs[i].type = ACPI_TYPE_INTEGER;
224 in_objs[i].integer.value = in[i];
225 }
226
227 results.length = sizeof(out_objs);
228 results.pointer = out_objs;
229
230 status = acpi_evaluate_object(dev->acpi_dev->handle,
231 (char *)dev->method_hci, ¶ms,
232 &results);
233 if ((status == AE_OK) && (out_objs->package.count <= HCI_WORDS)) {
234 for (i = 0; i < out_objs->package.count; ++i) {
235 out[i] = out_objs->package.elements[i].integer.value;
236 }
237 }
238
239 return status;
240}
241
242/* common hci tasks (get or set one or two value)
243 *
244 * In addition to the ACPI status, the HCI system returns a result which
245 * may be useful (such as "not supported").
246 */
247
248static acpi_status hci_write1(struct toshiba_acpi_dev *dev, u32 reg,
249 u32 in1, u32 *result)
250{
251 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
252 u32 out[HCI_WORDS];
253 acpi_status status = hci_raw(dev, in, out);
254 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
255 return status;
256}
257
258static acpi_status hci_read1(struct toshiba_acpi_dev *dev, u32 reg,
259 u32 *out1, u32 *result)
260{
261 u32 in[HCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
262 u32 out[HCI_WORDS];
263 acpi_status status = hci_raw(dev, in, out);
264 *out1 = out[2];
265 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
266 return status;
267}
268
269static acpi_status hci_write2(struct toshiba_acpi_dev *dev, u32 reg,
270 u32 in1, u32 in2, u32 *result)
271{
272 u32 in[HCI_WORDS] = { HCI_SET, reg, in1, in2, 0, 0 };
273 u32 out[HCI_WORDS];
274 acpi_status status = hci_raw(dev, in, out);
275 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
276 return status;
277}
278
279static acpi_status hci_read2(struct toshiba_acpi_dev *dev, u32 reg,
280 u32 *out1, u32 *out2, u32 *result)
281{
282 u32 in[HCI_WORDS] = { HCI_GET, reg, *out1, *out2, 0, 0 };
283 u32 out[HCI_WORDS];
284 acpi_status status = hci_raw(dev, in, out);
285 *out1 = out[2];
286 *out2 = out[3];
287 *result = (status == AE_OK) ? out[0] : HCI_FAILURE;
288 return status;
289}
290
291/* Illumination support */
292static int toshiba_illumination_available(struct toshiba_acpi_dev *dev)
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(dev, 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(dev, in, out);
306 return 1;
307}
308
309static void toshiba_illumination_set(struct led_classdev *cdev,
310 enum led_brightness brightness)
311{
312 struct toshiba_acpi_dev *dev = container_of(cdev,
313 struct toshiba_acpi_dev, led_dev);
314 u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
315 u32 out[HCI_WORDS];
316 acpi_status status;
317
318 /* First request : initialize communication. */
319 in[0] = 0xf100;
320 status = hci_raw(dev, in, out);
321 if (ACPI_FAILURE(status)) {
322 pr_info("Illumination device not available\n");
323 return;
324 }
325
326 if (brightness) {
327 /* Switch the illumination on */
328 in[0] = 0xf400;
329 in[1] = 0x14e;
330 in[2] = 1;
331 status = hci_raw(dev, in, out);
332 if (ACPI_FAILURE(status)) {
333 pr_info("ACPI call for illumination failed\n");
334 return;
335 }
336 } else {
337 /* Switch the illumination off */
338 in[0] = 0xf400;
339 in[1] = 0x14e;
340 in[2] = 0;
341 status = hci_raw(dev, in, out);
342 if (ACPI_FAILURE(status)) {
343 pr_info("ACPI call for illumination failed.\n");
344 return;
345 }
346 }
347
348 /* Last request : close communication. */
349 in[0] = 0xf200;
350 in[1] = 0;
351 in[2] = 0;
352 hci_raw(dev, in, out);
353}
354
355static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
356{
357 struct toshiba_acpi_dev *dev = container_of(cdev,
358 struct toshiba_acpi_dev, led_dev);
359 u32 in[HCI_WORDS] = { 0, 0, 0, 0, 0, 0 };
360 u32 out[HCI_WORDS];
361 acpi_status status;
362 enum led_brightness result;
363
364 /*Â First request : initialize communication. */
365 in[0] = 0xf100;
366 status = hci_raw(dev, in, out);
367 if (ACPI_FAILURE(status)) {
368 pr_info("Illumination device not available\n");
369 return LED_OFF;
370 }
371
372 /* Check the illumination */
373 in[0] = 0xf300;
374 in[1] = 0x14e;
375 status = hci_raw(dev, in, out);
376 if (ACPI_FAILURE(status)) {
377 pr_info("ACPI call for illumination failed.\n");
378 return LED_OFF;
379 }
380
381 result = out[2] ? LED_FULL : LED_OFF;
382
383 /* Last request : close communication. */
384 in[0] = 0xf200;
385 in[1] = 0;
386 in[2] = 0;
387 hci_raw(dev, in, out);
388
389 return result;
390}
391
392/* Bluetooth rfkill handlers */
393
394static u32 hci_get_bt_present(struct toshiba_acpi_dev *dev, bool *present)
395{
396 u32 hci_result;
397 u32 value, value2;
398
399 value = 0;
400 value2 = 0;
401 hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result);
402 if (hci_result == HCI_SUCCESS)
403 *present = (value & HCI_WIRELESS_BT_PRESENT) ? true : false;
404
405 return hci_result;
406}
407
408static u32 hci_get_radio_state(struct toshiba_acpi_dev *dev, bool *radio_state)
409{
410 u32 hci_result;
411 u32 value, value2;
412
413 value = 0;
414 value2 = 0x0001;
415 hci_read2(dev, HCI_WIRELESS, &value, &value2, &hci_result);
416
417 *radio_state = value & HCI_WIRELESS_KILL_SWITCH;
418 return hci_result;
419}
420
421static int bt_rfkill_set_block(void *data, bool blocked)
422{
423 struct toshiba_acpi_dev *dev = data;
424 u32 result1, result2;
425 u32 value;
426 int err;
427 bool radio_state;
428
429 value = (blocked == false);
430
431 mutex_lock(&dev->mutex);
432 if (hci_get_radio_state(dev, &radio_state) != HCI_SUCCESS) {
433 err = -EIO;
434 goto out;
435 }
436
437 if (!radio_state) {
438 err = 0;
439 goto out;
440 }
441
442 hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_POWER, &result1);
443 hci_write2(dev, HCI_WIRELESS, value, HCI_WIRELESS_BT_ATTACH, &result2);
444
445 if (result1 != HCI_SUCCESS || result2 != HCI_SUCCESS)
446 err = -EIO;
447 else
448 err = 0;
449 out:
450 mutex_unlock(&dev->mutex);
451 return err;
452}
453
454static void bt_rfkill_poll(struct rfkill *rfkill, void *data)
455{
456 bool new_rfk_state;
457 bool value;
458 u32 hci_result;
459 struct toshiba_acpi_dev *dev = data;
460
461 mutex_lock(&dev->mutex);
462
463 hci_result = hci_get_radio_state(dev, &value);
464 if (hci_result != HCI_SUCCESS) {
465 /* Can't do anything useful */
466 mutex_unlock(&dev->mutex);
467 return;
468 }
469
470 new_rfk_state = value;
471
472 mutex_unlock(&dev->mutex);
473
474 if (rfkill_set_hw_state(rfkill, !new_rfk_state))
475 bt_rfkill_set_block(data, true);
476}
477
478static const struct rfkill_ops toshiba_rfk_ops = {
479 .set_block = bt_rfkill_set_block,
480 .poll = bt_rfkill_poll,
481};
482
483static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, bool *enabled)
484{
485 u32 hci_result;
486 u32 status;
487
488 hci_read1(dev, HCI_TR_BACKLIGHT, &status, &hci_result);
489 *enabled = !status;
490 return hci_result == HCI_SUCCESS ? 0 : -EIO;
491}
492
493static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, bool enable)
494{
495 u32 hci_result;
496 u32 value = !enable;
497
498 hci_write1(dev, HCI_TR_BACKLIGHT, value, &hci_result);
499 return hci_result == HCI_SUCCESS ? 0 : -EIO;
500}
501
502static struct proc_dir_entry *toshiba_proc_dir /*= 0*/ ;
503
504static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
505{
506 u32 hci_result;
507 u32 value;
508 int brightness = 0;
509
510 if (dev->tr_backlight_supported) {
511 bool enabled;
512 int ret = get_tr_backlight_status(dev, &enabled);
513 if (ret)
514 return ret;
515 if (enabled)
516 return 0;
517 brightness++;
518 }
519
520 hci_read1(dev, HCI_LCD_BRIGHTNESS, &value, &hci_result);
521 if (hci_result == HCI_SUCCESS)
522 return brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT);
523
524 return -EIO;
525}
526
527static int get_lcd_brightness(struct backlight_device *bd)
528{
529 struct toshiba_acpi_dev *dev = bl_get_data(bd);
530 return __get_lcd_brightness(dev);
531}
532
533static int lcd_proc_show(struct seq_file *m, void *v)
534{
535 struct toshiba_acpi_dev *dev = m->private;
536 int value;
537 int levels;
538
539 if (!dev->backlight_dev)
540 return -ENODEV;
541
542 levels = dev->backlight_dev->props.max_brightness + 1;
543 value = get_lcd_brightness(dev->backlight_dev);
544 if (value >= 0) {
545 seq_printf(m, "brightness: %d\n", value);
546 seq_printf(m, "brightness_levels: %d\n", levels);
547 return 0;
548 }
549
550 pr_err("Error reading LCD brightness\n");
551 return -EIO;
552}
553
554static int lcd_proc_open(struct inode *inode, struct file *file)
555{
556 return single_open(file, lcd_proc_show, PDE(inode)->data);
557}
558
559static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
560{
561 u32 hci_result;
562
563 if (dev->tr_backlight_supported) {
564 bool enable = !value;
565 int ret = set_tr_backlight_status(dev, enable);
566 if (ret)
567 return ret;
568 if (value)
569 value--;
570 }
571
572 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
573 hci_write1(dev, HCI_LCD_BRIGHTNESS, value, &hci_result);
574 return hci_result == HCI_SUCCESS ? 0 : -EIO;
575}
576
577static int set_lcd_status(struct backlight_device *bd)
578{
579 struct toshiba_acpi_dev *dev = bl_get_data(bd);
580 return set_lcd_brightness(dev, bd->props.brightness);
581}
582
583static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
584 size_t count, loff_t *pos)
585{
586 struct toshiba_acpi_dev *dev = PDE(file->f_path.dentry->d_inode)->data;
587 char cmd[42];
588 size_t len;
589 int value;
590 int ret;
591 int levels = dev->backlight_dev->props.max_brightness + 1;
592
593 len = min(count, sizeof(cmd) - 1);
594 if (copy_from_user(cmd, buf, len))
595 return -EFAULT;
596 cmd[len] = '\0';
597
598 if (sscanf(cmd, " brightness : %i", &value) == 1 &&
599 value >= 0 && value < levels) {
600 ret = set_lcd_brightness(dev, value);
601 if (ret == 0)
602 ret = count;
603 } else {
604 ret = -EINVAL;
605 }
606 return ret;
607}
608
609static const struct file_operations lcd_proc_fops = {
610 .owner = THIS_MODULE,
611 .open = lcd_proc_open,
612 .read = seq_read,
613 .llseek = seq_lseek,
614 .release = single_release,
615 .write = lcd_proc_write,
616};
617
618static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
619{
620 u32 hci_result;
621
622 hci_read1(dev, HCI_VIDEO_OUT, status, &hci_result);
623 return hci_result == HCI_SUCCESS ? 0 : -EIO;
624}
625
626static int video_proc_show(struct seq_file *m, void *v)
627{
628 struct toshiba_acpi_dev *dev = m->private;
629 u32 value;
630 int ret;
631
632 ret = get_video_status(dev, &value);
633 if (!ret) {
634 int is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
635 int is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
636 int is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
637 seq_printf(m, "lcd_out: %d\n", is_lcd);
638 seq_printf(m, "crt_out: %d\n", is_crt);
639 seq_printf(m, "tv_out: %d\n", is_tv);
640 }
641
642 return ret;
643}
644
645static int video_proc_open(struct inode *inode, struct file *file)
646{
647 return single_open(file, video_proc_show, PDE(inode)->data);
648}
649
650static ssize_t video_proc_write(struct file *file, const char __user *buf,
651 size_t count, loff_t *pos)
652{
653 struct toshiba_acpi_dev *dev = PDE(file->f_path.dentry->d_inode)->data;
654 char *cmd, *buffer;
655 int ret;
656 int value;
657 int remain = count;
658 int lcd_out = -1;
659 int crt_out = -1;
660 int tv_out = -1;
661 u32 video_out;
662
663 cmd = kmalloc(count + 1, GFP_KERNEL);
664 if (!cmd)
665 return -ENOMEM;
666 if (copy_from_user(cmd, buf, count)) {
667 kfree(cmd);
668 return -EFAULT;
669 }
670 cmd[count] = '\0';
671
672 buffer = cmd;
673
674 /* scan expression. Multiple expressions may be delimited with ;
675 *
676 * NOTE: to keep scanning simple, invalid fields are ignored
677 */
678 while (remain) {
679 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
680 lcd_out = value & 1;
681 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
682 crt_out = value & 1;
683 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
684 tv_out = value & 1;
685 /* advance to one character past the next ; */
686 do {
687 ++buffer;
688 --remain;
689 }
690 while (remain && *(buffer - 1) != ';');
691 }
692
693 kfree(cmd);
694
695 ret = get_video_status(dev, &video_out);
696 if (!ret) {
697 unsigned int new_video_out = video_out;
698 if (lcd_out != -1)
699 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
700 if (crt_out != -1)
701 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
702 if (tv_out != -1)
703 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
704 /* To avoid unnecessary video disruption, only write the new
705 * video setting if something changed. */
706 if (new_video_out != video_out)
707 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
708 }
709
710 return ret ? ret : count;
711}
712
713static const struct file_operations video_proc_fops = {
714 .owner = THIS_MODULE,
715 .open = video_proc_open,
716 .read = seq_read,
717 .llseek = seq_lseek,
718 .release = single_release,
719 .write = video_proc_write,
720};
721
722static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
723{
724 u32 hci_result;
725
726 hci_read1(dev, HCI_FAN, status, &hci_result);
727 return hci_result == HCI_SUCCESS ? 0 : -EIO;
728}
729
730static int fan_proc_show(struct seq_file *m, void *v)
731{
732 struct toshiba_acpi_dev *dev = m->private;
733 int ret;
734 u32 value;
735
736 ret = get_fan_status(dev, &value);
737 if (!ret) {
738 seq_printf(m, "running: %d\n", (value > 0));
739 seq_printf(m, "force_on: %d\n", dev->force_fan);
740 }
741
742 return ret;
743}
744
745static int fan_proc_open(struct inode *inode, struct file *file)
746{
747 return single_open(file, fan_proc_show, PDE(inode)->data);
748}
749
750static ssize_t fan_proc_write(struct file *file, const char __user *buf,
751 size_t count, loff_t *pos)
752{
753 struct toshiba_acpi_dev *dev = PDE(file->f_path.dentry->d_inode)->data;
754 char cmd[42];
755 size_t len;
756 int value;
757 u32 hci_result;
758
759 len = min(count, sizeof(cmd) - 1);
760 if (copy_from_user(cmd, buf, len))
761 return -EFAULT;
762 cmd[len] = '\0';
763
764 if (sscanf(cmd, " force_on : %i", &value) == 1 &&
765 value >= 0 && value <= 1) {
766 hci_write1(dev, HCI_FAN, value, &hci_result);
767 if (hci_result != HCI_SUCCESS)
768 return -EIO;
769 else
770 dev->force_fan = value;
771 } else {
772 return -EINVAL;
773 }
774
775 return count;
776}
777
778static const struct file_operations fan_proc_fops = {
779 .owner = THIS_MODULE,
780 .open = fan_proc_open,
781 .read = seq_read,
782 .llseek = seq_lseek,
783 .release = single_release,
784 .write = fan_proc_write,
785};
786
787static int keys_proc_show(struct seq_file *m, void *v)
788{
789 struct toshiba_acpi_dev *dev = m->private;
790 u32 hci_result;
791 u32 value;
792
793 if (!dev->key_event_valid && dev->system_event_supported) {
794 hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
795 if (hci_result == HCI_SUCCESS) {
796 dev->key_event_valid = 1;
797 dev->last_key_event = value;
798 } else if (hci_result == HCI_EMPTY) {
799 /* better luck next time */
800 } else if (hci_result == HCI_NOT_SUPPORTED) {
801 /* This is a workaround for an unresolved issue on
802 * some machines where system events sporadically
803 * become disabled. */
804 hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
805 pr_notice("Re-enabled hotkeys\n");
806 } else {
807 pr_err("Error reading hotkey status\n");
808 return -EIO;
809 }
810 }
811
812 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
813 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
814 return 0;
815}
816
817static int keys_proc_open(struct inode *inode, struct file *file)
818{
819 return single_open(file, keys_proc_show, PDE(inode)->data);
820}
821
822static ssize_t keys_proc_write(struct file *file, const char __user *buf,
823 size_t count, loff_t *pos)
824{
825 struct toshiba_acpi_dev *dev = PDE(file->f_path.dentry->d_inode)->data;
826 char cmd[42];
827 size_t len;
828 int value;
829
830 len = min(count, sizeof(cmd) - 1);
831 if (copy_from_user(cmd, buf, len))
832 return -EFAULT;
833 cmd[len] = '\0';
834
835 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0) {
836 dev->key_event_valid = 0;
837 } else {
838 return -EINVAL;
839 }
840
841 return count;
842}
843
844static const struct file_operations keys_proc_fops = {
845 .owner = THIS_MODULE,
846 .open = keys_proc_open,
847 .read = seq_read,
848 .llseek = seq_lseek,
849 .release = single_release,
850 .write = keys_proc_write,
851};
852
853static int version_proc_show(struct seq_file *m, void *v)
854{
855 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
856 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
857 return 0;
858}
859
860static int version_proc_open(struct inode *inode, struct file *file)
861{
862 return single_open(file, version_proc_show, PDE(inode)->data);
863}
864
865static const struct file_operations version_proc_fops = {
866 .owner = THIS_MODULE,
867 .open = version_proc_open,
868 .read = seq_read,
869 .llseek = seq_lseek,
870 .release = single_release,
871};
872
873/* proc and module init
874 */
875
876#define PROC_TOSHIBA "toshiba"
877
878static void __devinit
879create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
880{
881 if (dev->backlight_dev)
882 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
883 &lcd_proc_fops, dev);
884 if (dev->video_supported)
885 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
886 &video_proc_fops, dev);
887 if (dev->fan_supported)
888 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
889 &fan_proc_fops, dev);
890 if (dev->hotkey_dev)
891 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
892 &keys_proc_fops, dev);
893 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
894 &version_proc_fops, dev);
895}
896
897static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
898{
899 if (dev->backlight_dev)
900 remove_proc_entry("lcd", toshiba_proc_dir);
901 if (dev->video_supported)
902 remove_proc_entry("video", toshiba_proc_dir);
903 if (dev->fan_supported)
904 remove_proc_entry("fan", toshiba_proc_dir);
905 if (dev->hotkey_dev)
906 remove_proc_entry("keys", toshiba_proc_dir);
907 remove_proc_entry("version", toshiba_proc_dir);
908}
909
910static const struct backlight_ops toshiba_backlight_data = {
911 .options = BL_CORE_SUSPENDRESUME,
912 .get_brightness = get_lcd_brightness,
913 .update_status = set_lcd_status,
914};
915
916static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
917 struct serio *port)
918{
919 if (str & 0x20)
920 return false;
921
922 if (unlikely(data == 0xe0))
923 return false;
924
925 if ((data & 0x7f) == TOS1900_FN_SCAN) {
926 schedule_work(&toshiba_acpi->hotkey_work);
927 return true;
928 }
929
930 return false;
931}
932
933static void toshiba_acpi_hotkey_work(struct work_struct *work)
934{
935 acpi_handle ec_handle = ec_get_handle();
936 acpi_status status;
937
938 if (!ec_handle)
939 return;
940
941 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
942 if (ACPI_FAILURE(status))
943 pr_err("ACPI NTFY method execution failed\n");
944}
945
946/*
947 * Returns hotkey scancode, or < 0 on failure.
948 */
949static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
950{
951 struct acpi_buffer buf;
952 union acpi_object out_obj;
953 acpi_status status;
954
955 buf.pointer = &out_obj;
956 buf.length = sizeof(out_obj);
957
958 status = acpi_evaluate_object(dev->acpi_dev->handle, "INFO",
959 NULL, &buf);
960 if (ACPI_FAILURE(status) || out_obj.type != ACPI_TYPE_INTEGER) {
961 pr_err("ACPI INFO method execution failed\n");
962 return -EIO;
963 }
964
965 return out_obj.integer.value;
966}
967
968static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
969 int scancode)
970{
971 if (scancode == 0x100)
972 return;
973
974 /* act on key press; ignore key release */
975 if (scancode & 0x80)
976 return;
977
978 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
979 pr_info("Unknown key %x\n", scancode);
980}
981
982static int __devinit toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
983{
984 acpi_status status;
985 acpi_handle ec_handle, handle;
986 int error;
987 u32 hci_result;
988
989 dev->hotkey_dev = input_allocate_device();
990 if (!dev->hotkey_dev) {
991 pr_info("Unable to register input device\n");
992 return -ENOMEM;
993 }
994
995 dev->hotkey_dev->name = "Toshiba input device";
996 dev->hotkey_dev->phys = "toshiba_acpi/input0";
997 dev->hotkey_dev->id.bustype = BUS_HOST;
998
999 error = sparse_keymap_setup(dev->hotkey_dev, toshiba_acpi_keymap, NULL);
1000 if (error)
1001 goto err_free_dev;
1002
1003 /*
1004 * For some machines the SCI responsible for providing hotkey
1005 * notification doesn't fire. We can trigger the notification
1006 * whenever the Fn key is pressed using the NTFY method, if
1007 * supported, so if it's present set up an i8042 key filter
1008 * for this purpose.
1009 */
1010 status = AE_ERROR;
1011 ec_handle = ec_get_handle();
1012 if (ec_handle)
1013 status = acpi_get_handle(ec_handle, "NTFY", &handle);
1014
1015 if (ACPI_SUCCESS(status)) {
1016 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
1017
1018 error = i8042_install_filter(toshiba_acpi_i8042_filter);
1019 if (error) {
1020 pr_err("Error installing key filter\n");
1021 goto err_free_keymap;
1022 }
1023
1024 dev->ntfy_supported = 1;
1025 }
1026
1027 /*
1028 * Determine hotkey query interface. Prefer using the INFO
1029 * method when it is available.
1030 */
1031 status = acpi_get_handle(dev->acpi_dev->handle, "INFO", &handle);
1032 if (ACPI_SUCCESS(status)) {
1033 dev->info_supported = 1;
1034 } else {
1035 hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
1036 if (hci_result == HCI_SUCCESS)
1037 dev->system_event_supported = 1;
1038 }
1039
1040 if (!dev->info_supported && !dev->system_event_supported) {
1041 pr_warn("No hotkey query interface found\n");
1042 goto err_remove_filter;
1043 }
1044
1045 status = acpi_evaluate_object(dev->acpi_dev->handle, "ENAB", NULL, NULL);
1046 if (ACPI_FAILURE(status)) {
1047 pr_info("Unable to enable hotkeys\n");
1048 error = -ENODEV;
1049 goto err_remove_filter;
1050 }
1051
1052 error = input_register_device(dev->hotkey_dev);
1053 if (error) {
1054 pr_info("Unable to register input device\n");
1055 goto err_remove_filter;
1056 }
1057
1058 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &hci_result);
1059 return 0;
1060
1061 err_remove_filter:
1062 if (dev->ntfy_supported)
1063 i8042_remove_filter(toshiba_acpi_i8042_filter);
1064 err_free_keymap:
1065 sparse_keymap_free(dev->hotkey_dev);
1066 err_free_dev:
1067 input_free_device(dev->hotkey_dev);
1068 dev->hotkey_dev = NULL;
1069 return error;
1070}
1071
1072static int __devinit toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
1073{
1074 struct backlight_properties props;
1075 int brightness;
1076 int ret;
1077 bool enabled;
1078
1079 /*
1080 * Some machines don't support the backlight methods at all, and
1081 * others support it read-only. Either of these is pretty useless,
1082 * so only register the backlight device if the backlight method
1083 * supports both reads and writes.
1084 */
1085 brightness = __get_lcd_brightness(dev);
1086 if (brightness < 0)
1087 return 0;
1088 ret = set_lcd_brightness(dev, brightness);
1089 if (ret) {
1090 pr_debug("Backlight method is read-only, disabling backlight support\n");
1091 return 0;
1092 }
1093
1094 /* Determine whether or not BIOS supports transflective backlight */
1095 ret = get_tr_backlight_status(dev, &enabled);
1096 dev->tr_backlight_supported = !ret;
1097
1098 memset(&props, 0, sizeof(props));
1099 props.type = BACKLIGHT_PLATFORM;
1100 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
1101
1102 /* adding an extra level and having 0 change to transflective mode */
1103 if (dev->tr_backlight_supported)
1104 props.max_brightness++;
1105
1106 dev->backlight_dev = backlight_device_register("toshiba",
1107 &dev->acpi_dev->dev,
1108 dev,
1109 &toshiba_backlight_data,
1110 &props);
1111 if (IS_ERR(dev->backlight_dev)) {
1112 ret = PTR_ERR(dev->backlight_dev);
1113 pr_err("Could not register toshiba backlight device\n");
1114 dev->backlight_dev = NULL;
1115 return ret;
1116 }
1117
1118 dev->backlight_dev->props.brightness = brightness;
1119 return 0;
1120}
1121
1122static int toshiba_acpi_remove(struct acpi_device *acpi_dev, int type)
1123{
1124 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
1125
1126 remove_toshiba_proc_entries(dev);
1127
1128 if (dev->ntfy_supported) {
1129 i8042_remove_filter(toshiba_acpi_i8042_filter);
1130 cancel_work_sync(&dev->hotkey_work);
1131 }
1132
1133 if (dev->hotkey_dev) {
1134 input_unregister_device(dev->hotkey_dev);
1135 sparse_keymap_free(dev->hotkey_dev);
1136 }
1137
1138 if (dev->bt_rfk) {
1139 rfkill_unregister(dev->bt_rfk);
1140 rfkill_destroy(dev->bt_rfk);
1141 }
1142
1143 if (dev->backlight_dev)
1144 backlight_device_unregister(dev->backlight_dev);
1145
1146 if (dev->illumination_supported)
1147 led_classdev_unregister(&dev->led_dev);
1148
1149 if (toshiba_acpi)
1150 toshiba_acpi = NULL;
1151
1152 kfree(dev);
1153
1154 return 0;
1155}
1156
1157static const char * __devinit find_hci_method(acpi_handle handle)
1158{
1159 acpi_status status;
1160 acpi_handle hci_handle;
1161
1162 status = acpi_get_handle(handle, "GHCI", &hci_handle);
1163 if (ACPI_SUCCESS(status))
1164 return "GHCI";
1165
1166 status = acpi_get_handle(handle, "SPFC", &hci_handle);
1167 if (ACPI_SUCCESS(status))
1168 return "SPFC";
1169
1170 return NULL;
1171}
1172
1173static int __devinit toshiba_acpi_add(struct acpi_device *acpi_dev)
1174{
1175 struct toshiba_acpi_dev *dev;
1176 const char *hci_method;
1177 u32 dummy;
1178 bool bt_present;
1179 int ret = 0;
1180
1181 if (toshiba_acpi)
1182 return -EBUSY;
1183
1184 pr_info("Toshiba Laptop ACPI Extras version %s\n",
1185 TOSHIBA_ACPI_VERSION);
1186
1187 hci_method = find_hci_method(acpi_dev->handle);
1188 if (!hci_method) {
1189 pr_err("HCI interface not found\n");
1190 return -ENODEV;
1191 }
1192
1193 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
1194 if (!dev)
1195 return -ENOMEM;
1196 dev->acpi_dev = acpi_dev;
1197 dev->method_hci = hci_method;
1198 acpi_dev->driver_data = dev;
1199
1200 if (toshiba_acpi_setup_keyboard(dev))
1201 pr_info("Unable to activate hotkeys\n");
1202
1203 mutex_init(&dev->mutex);
1204
1205 ret = toshiba_acpi_setup_backlight(dev);
1206 if (ret)
1207 goto error;
1208
1209 /* Register rfkill switch for Bluetooth */
1210 if (hci_get_bt_present(dev, &bt_present) == HCI_SUCCESS && bt_present) {
1211 dev->bt_rfk = rfkill_alloc("Toshiba Bluetooth",
1212 &acpi_dev->dev,
1213 RFKILL_TYPE_BLUETOOTH,
1214 &toshiba_rfk_ops,
1215 dev);
1216 if (!dev->bt_rfk) {
1217 pr_err("unable to allocate rfkill device\n");
1218 ret = -ENOMEM;
1219 goto error;
1220 }
1221
1222 ret = rfkill_register(dev->bt_rfk);
1223 if (ret) {
1224 pr_err("unable to register rfkill device\n");
1225 rfkill_destroy(dev->bt_rfk);
1226 goto error;
1227 }
1228 }
1229
1230 if (toshiba_illumination_available(dev)) {
1231 dev->led_dev.name = "toshiba::illumination";
1232 dev->led_dev.max_brightness = 1;
1233 dev->led_dev.brightness_set = toshiba_illumination_set;
1234 dev->led_dev.brightness_get = toshiba_illumination_get;
1235 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
1236 dev->illumination_supported = 1;
1237 }
1238
1239 /* Determine whether or not BIOS supports fan and video interfaces */
1240
1241 ret = get_video_status(dev, &dummy);
1242 dev->video_supported = !ret;
1243
1244 ret = get_fan_status(dev, &dummy);
1245 dev->fan_supported = !ret;
1246
1247 create_toshiba_proc_entries(dev);
1248
1249 toshiba_acpi = dev;
1250
1251 return 0;
1252
1253error:
1254 toshiba_acpi_remove(acpi_dev, 0);
1255 return ret;
1256}
1257
1258static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
1259{
1260 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
1261 u32 hci_result, value;
1262 int retries = 3;
1263 int scancode;
1264
1265 if (event != 0x80)
1266 return;
1267
1268 if (dev->info_supported) {
1269 scancode = toshiba_acpi_query_hotkey(dev);
1270 if (scancode < 0)
1271 pr_err("Failed to query hotkey event\n");
1272 else if (scancode != 0)
1273 toshiba_acpi_report_hotkey(dev, scancode);
1274 } else if (dev->system_event_supported) {
1275 do {
1276 hci_read1(dev, HCI_SYSTEM_EVENT, &value, &hci_result);
1277 switch (hci_result) {
1278 case HCI_SUCCESS:
1279 toshiba_acpi_report_hotkey(dev, (int)value);
1280 break;
1281 case HCI_NOT_SUPPORTED:
1282 /*
1283 * This is a workaround for an unresolved
1284 * issue on some machines where system events
1285 * sporadically become disabled.
1286 */
1287 hci_write1(dev, HCI_SYSTEM_EVENT, 1,
1288 &hci_result);
1289 pr_notice("Re-enabled hotkeys\n");
1290 /* fall through */
1291 default:
1292 retries--;
1293 break;
1294 }
1295 } while (retries && hci_result != HCI_EMPTY);
1296 }
1297}
1298
1299static int toshiba_acpi_suspend(struct acpi_device *acpi_dev,
1300 pm_message_t state)
1301{
1302 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
1303 u32 result;
1304
1305 if (dev->hotkey_dev)
1306 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE, &result);
1307
1308 return 0;
1309}
1310
1311static int toshiba_acpi_resume(struct acpi_device *acpi_dev)
1312{
1313 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
1314 u32 result;
1315
1316 if (dev->hotkey_dev)
1317 hci_write1(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE, &result);
1318
1319 return 0;
1320}
1321
1322static struct acpi_driver toshiba_acpi_driver = {
1323 .name = "Toshiba ACPI driver",
1324 .owner = THIS_MODULE,
1325 .ids = toshiba_device_ids,
1326 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
1327 .ops = {
1328 .add = toshiba_acpi_add,
1329 .remove = toshiba_acpi_remove,
1330 .notify = toshiba_acpi_notify,
1331 .suspend = toshiba_acpi_suspend,
1332 .resume = toshiba_acpi_resume,
1333 },
1334};
1335
1336static int __init toshiba_acpi_init(void)
1337{
1338 int ret;
1339
1340 /*
1341 * Machines with this WMI guid aren't supported due to bugs in
1342 * their AML. This check relies on wmi initializing before
1343 * toshiba_acpi to guarantee guids have been identified.
1344 */
1345 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
1346 return -ENODEV;
1347
1348 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
1349 if (!toshiba_proc_dir) {
1350 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
1351 return -ENODEV;
1352 }
1353
1354 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
1355 if (ret) {
1356 pr_err("Failed to register ACPI driver: %d\n", ret);
1357 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
1358 }
1359
1360 return ret;
1361}
1362
1363static void __exit toshiba_acpi_exit(void)
1364{
1365 acpi_bus_unregister_driver(&toshiba_acpi_driver);
1366 if (toshiba_proc_dir)
1367 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
1368}
1369
1370module_init(toshiba_acpi_init);
1371module_exit(toshiba_acpi_exit);
1/*
2 * toshiba_acpi.c - Toshiba Laptop ACPI Extras
3 *
4 * Copyright (C) 2002-2004 John Belmonte
5 * Copyright (C) 2008 Philip Langdale
6 * Copyright (C) 2010 Pierre Ducroquet
7 * Copyright (C) 2014-2016 Azael Avalos
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * The full GNU General Public License is included in this distribution in
20 * the file called "COPYING".
21 *
22 * The devolpment page for this driver is located at
23 * http://memebeam.org/toys/ToshibaAcpiDriver.
24 *
25 * Credits:
26 * Jonathan A. Buzzard - Toshiba HCI info, and critical tips on reverse
27 * engineering the Windows drivers
28 * Yasushi Nagato - changes for linux kernel 2.4 -> 2.5
29 * Rob Miller - TV out and hotkeys help
30 */
31
32#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
33
34#define TOSHIBA_ACPI_VERSION "0.24"
35#define PROC_INTERFACE_VERSION 1
36
37#include <linux/kernel.h>
38#include <linux/module.h>
39#include <linux/moduleparam.h>
40#include <linux/init.h>
41#include <linux/types.h>
42#include <linux/proc_fs.h>
43#include <linux/seq_file.h>
44#include <linux/backlight.h>
45#include <linux/input.h>
46#include <linux/input/sparse-keymap.h>
47#include <linux/leds.h>
48#include <linux/slab.h>
49#include <linux/workqueue.h>
50#include <linux/i8042.h>
51#include <linux/acpi.h>
52#include <linux/dmi.h>
53#include <linux/uaccess.h>
54#include <linux/miscdevice.h>
55#include <linux/rfkill.h>
56#include <linux/iio/iio.h>
57#include <linux/toshiba.h>
58#include <acpi/video.h>
59
60MODULE_AUTHOR("John Belmonte");
61MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver");
62MODULE_LICENSE("GPL");
63
64#define TOSHIBA_WMI_EVENT_GUID "59142400-C6A3-40FA-BADB-8A2652834100"
65
66/* Scan code for Fn key on TOS1900 models */
67#define TOS1900_FN_SCAN 0x6e
68
69/* Toshiba ACPI method paths */
70#define METHOD_VIDEO_OUT "\\_SB_.VALX.DSSX"
71
72/*
73 * The Toshiba configuration interface is composed of the HCI and the SCI,
74 * which are defined as follows:
75 *
76 * HCI is Toshiba's "Hardware Control Interface" which is supposed to
77 * be uniform across all their models. Ideally we would just call
78 * dedicated ACPI methods instead of using this primitive interface.
79 * However the ACPI methods seem to be incomplete in some areas (for
80 * example they allow setting, but not reading, the LCD brightness value),
81 * so this is still useful.
82 *
83 * SCI stands for "System Configuration Interface" which aim is to
84 * conceal differences in hardware between different models.
85 */
86
87#define TCI_WORDS 6
88
89/* Operations */
90#define HCI_SET 0xff00
91#define HCI_GET 0xfe00
92#define SCI_OPEN 0xf100
93#define SCI_CLOSE 0xf200
94#define SCI_GET 0xf300
95#define SCI_SET 0xf400
96
97/* Return codes */
98#define TOS_SUCCESS 0x0000
99#define TOS_SUCCESS2 0x0001
100#define TOS_OPEN_CLOSE_OK 0x0044
101#define TOS_FAILURE 0x1000
102#define TOS_NOT_SUPPORTED 0x8000
103#define TOS_ALREADY_OPEN 0x8100
104#define TOS_NOT_OPENED 0x8200
105#define TOS_INPUT_DATA_ERROR 0x8300
106#define TOS_WRITE_PROTECTED 0x8400
107#define TOS_NOT_PRESENT 0x8600
108#define TOS_FIFO_EMPTY 0x8c00
109#define TOS_DATA_NOT_AVAILABLE 0x8d20
110#define TOS_NOT_INITIALIZED 0x8d50
111#define TOS_NOT_INSTALLED 0x8e00
112
113/* Registers */
114#define HCI_FAN 0x0004
115#define HCI_TR_BACKLIGHT 0x0005
116#define HCI_SYSTEM_EVENT 0x0016
117#define HCI_VIDEO_OUT 0x001c
118#define HCI_HOTKEY_EVENT 0x001e
119#define HCI_LCD_BRIGHTNESS 0x002a
120#define HCI_WIRELESS 0x0056
121#define HCI_ACCELEROMETER 0x006d
122#define HCI_COOLING_METHOD 0x007f
123#define HCI_KBD_ILLUMINATION 0x0095
124#define HCI_ECO_MODE 0x0097
125#define HCI_ACCELEROMETER2 0x00a6
126#define HCI_SYSTEM_INFO 0xc000
127#define SCI_PANEL_POWER_ON 0x010d
128#define SCI_ILLUMINATION 0x014e
129#define SCI_USB_SLEEP_CHARGE 0x0150
130#define SCI_KBD_ILLUM_STATUS 0x015c
131#define SCI_USB_SLEEP_MUSIC 0x015e
132#define SCI_USB_THREE 0x0169
133#define SCI_TOUCHPAD 0x050e
134#define SCI_KBD_FUNCTION_KEYS 0x0522
135
136/* Field definitions */
137#define HCI_ACCEL_MASK 0x7fff
138#define HCI_ACCEL_DIRECTION_MASK 0x8000
139#define HCI_HOTKEY_DISABLE 0x0b
140#define HCI_HOTKEY_ENABLE 0x09
141#define HCI_HOTKEY_SPECIAL_FUNCTIONS 0x10
142#define HCI_LCD_BRIGHTNESS_BITS 3
143#define HCI_LCD_BRIGHTNESS_SHIFT (16-HCI_LCD_BRIGHTNESS_BITS)
144#define HCI_LCD_BRIGHTNESS_LEVELS (1 << HCI_LCD_BRIGHTNESS_BITS)
145#define HCI_MISC_SHIFT 0x10
146#define HCI_SYSTEM_TYPE1 0x10
147#define HCI_SYSTEM_TYPE2 0x11
148#define HCI_VIDEO_OUT_LCD 0x1
149#define HCI_VIDEO_OUT_CRT 0x2
150#define HCI_VIDEO_OUT_TV 0x4
151#define SCI_KBD_MODE_MASK 0x1f
152#define SCI_KBD_MODE_FNZ 0x1
153#define SCI_KBD_MODE_AUTO 0x2
154#define SCI_KBD_MODE_ON 0x8
155#define SCI_KBD_MODE_OFF 0x10
156#define SCI_KBD_TIME_MAX 0x3c001a
157#define HCI_WIRELESS_STATUS 0x1
158#define HCI_WIRELESS_WWAN 0x3
159#define HCI_WIRELESS_WWAN_STATUS 0x2000
160#define HCI_WIRELESS_WWAN_POWER 0x4000
161#define SCI_USB_CHARGE_MODE_MASK 0xff
162#define SCI_USB_CHARGE_DISABLED 0x00
163#define SCI_USB_CHARGE_ALTERNATE 0x09
164#define SCI_USB_CHARGE_TYPICAL 0x11
165#define SCI_USB_CHARGE_AUTO 0x21
166#define SCI_USB_CHARGE_BAT_MASK 0x7
167#define SCI_USB_CHARGE_BAT_LVL_OFF 0x1
168#define SCI_USB_CHARGE_BAT_LVL_ON 0x4
169#define SCI_USB_CHARGE_BAT_LVL 0x0200
170#define SCI_USB_CHARGE_RAPID_DSP 0x0300
171
172struct toshiba_acpi_dev {
173 struct acpi_device *acpi_dev;
174 const char *method_hci;
175 struct input_dev *hotkey_dev;
176 struct work_struct hotkey_work;
177 struct backlight_device *backlight_dev;
178 struct led_classdev led_dev;
179 struct led_classdev kbd_led;
180 struct led_classdev eco_led;
181 struct miscdevice miscdev;
182 struct rfkill *wwan_rfk;
183 struct iio_dev *indio_dev;
184
185 int force_fan;
186 int last_key_event;
187 int key_event_valid;
188 int kbd_type;
189 int kbd_mode;
190 int kbd_time;
191 int usbsc_bat_level;
192 int usbsc_mode_base;
193 int hotkey_event_type;
194 int max_cooling_method;
195
196 unsigned int illumination_supported:1;
197 unsigned int video_supported:1;
198 unsigned int fan_supported:1;
199 unsigned int system_event_supported:1;
200 unsigned int ntfy_supported:1;
201 unsigned int info_supported:1;
202 unsigned int tr_backlight_supported:1;
203 unsigned int kbd_illum_supported:1;
204 unsigned int touchpad_supported:1;
205 unsigned int eco_supported:1;
206 unsigned int accelerometer_supported:1;
207 unsigned int usb_sleep_charge_supported:1;
208 unsigned int usb_rapid_charge_supported:1;
209 unsigned int usb_sleep_music_supported:1;
210 unsigned int kbd_function_keys_supported:1;
211 unsigned int panel_power_on_supported:1;
212 unsigned int usb_three_supported:1;
213 unsigned int wwan_supported:1;
214 unsigned int cooling_method_supported:1;
215 unsigned int sysfs_created:1;
216 unsigned int special_functions;
217
218 bool kbd_event_generated;
219 bool kbd_led_registered;
220 bool illumination_led_registered;
221 bool eco_led_registered;
222 bool killswitch;
223};
224
225static struct toshiba_acpi_dev *toshiba_acpi;
226
227static bool disable_hotkeys;
228module_param(disable_hotkeys, bool, 0444);
229MODULE_PARM_DESC(disable_hotkeys, "Disables the hotkeys activation");
230
231static const struct acpi_device_id toshiba_device_ids[] = {
232 {"TOS6200", 0},
233 {"TOS6207", 0},
234 {"TOS6208", 0},
235 {"TOS1900", 0},
236 {"", 0},
237};
238MODULE_DEVICE_TABLE(acpi, toshiba_device_ids);
239
240static const struct key_entry toshiba_acpi_keymap[] = {
241 { KE_KEY, 0x9e, { KEY_RFKILL } },
242 { KE_KEY, 0x101, { KEY_MUTE } },
243 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
244 { KE_KEY, 0x103, { KEY_ZOOMIN } },
245 { KE_KEY, 0x10f, { KEY_TAB } },
246 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
247 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
248 { KE_KEY, 0x13b, { KEY_COFFEE } },
249 { KE_KEY, 0x13c, { KEY_BATTERY } },
250 { KE_KEY, 0x13d, { KEY_SLEEP } },
251 { KE_KEY, 0x13e, { KEY_SUSPEND } },
252 { KE_KEY, 0x13f, { KEY_SWITCHVIDEOMODE } },
253 { KE_KEY, 0x140, { KEY_BRIGHTNESSDOWN } },
254 { KE_KEY, 0x141, { KEY_BRIGHTNESSUP } },
255 { KE_KEY, 0x142, { KEY_WLAN } },
256 { KE_KEY, 0x143, { KEY_TOUCHPAD_TOGGLE } },
257 { KE_KEY, 0x17f, { KEY_FN } },
258 { KE_KEY, 0xb05, { KEY_PROG2 } },
259 { KE_KEY, 0xb06, { KEY_WWW } },
260 { KE_KEY, 0xb07, { KEY_MAIL } },
261 { KE_KEY, 0xb30, { KEY_STOP } },
262 { KE_KEY, 0xb31, { KEY_PREVIOUSSONG } },
263 { KE_KEY, 0xb32, { KEY_NEXTSONG } },
264 { KE_KEY, 0xb33, { KEY_PLAYPAUSE } },
265 { KE_KEY, 0xb5a, { KEY_MEDIA } },
266 { KE_IGNORE, 0x1430, { KEY_RESERVED } }, /* Wake from sleep */
267 { KE_IGNORE, 0x1501, { KEY_RESERVED } }, /* Output changed */
268 { KE_IGNORE, 0x1502, { KEY_RESERVED } }, /* HDMI plugged/unplugged */
269 { KE_IGNORE, 0x1ABE, { KEY_RESERVED } }, /* Protection level set */
270 { KE_IGNORE, 0x1ABF, { KEY_RESERVED } }, /* Protection level off */
271 { KE_END, 0 },
272};
273
274static const struct key_entry toshiba_acpi_alt_keymap[] = {
275 { KE_KEY, 0x102, { KEY_ZOOMOUT } },
276 { KE_KEY, 0x103, { KEY_ZOOMIN } },
277 { KE_KEY, 0x12c, { KEY_KBDILLUMTOGGLE } },
278 { KE_KEY, 0x139, { KEY_ZOOMRESET } },
279 { KE_KEY, 0x13c, { KEY_BRIGHTNESSDOWN } },
280 { KE_KEY, 0x13d, { KEY_BRIGHTNESSUP } },
281 { KE_KEY, 0x13e, { KEY_SWITCHVIDEOMODE } },
282 { KE_KEY, 0x13f, { KEY_TOUCHPAD_TOGGLE } },
283 { KE_KEY, 0x157, { KEY_MUTE } },
284 { KE_KEY, 0x158, { KEY_WLAN } },
285 { KE_END, 0 },
286};
287
288/*
289 * List of models which have a broken acpi-video backlight interface and thus
290 * need to use the toshiba (vendor) interface instead.
291 */
292static const struct dmi_system_id toshiba_vendor_backlight_dmi[] = {
293 {}
294};
295
296/*
297 * Utility
298 */
299
300static inline void _set_bit(u32 *word, u32 mask, int value)
301{
302 *word = (*word & ~mask) | (mask * value);
303}
304
305/*
306 * ACPI interface wrappers
307 */
308
309static int write_acpi_int(const char *methodName, int val)
310{
311 acpi_status status;
312
313 status = acpi_execute_simple_method(NULL, (char *)methodName, val);
314 return (status == AE_OK) ? 0 : -EIO;
315}
316
317/*
318 * Perform a raw configuration call. Here we don't care about input or output
319 * buffer format.
320 */
321static acpi_status tci_raw(struct toshiba_acpi_dev *dev,
322 const u32 in[TCI_WORDS], u32 out[TCI_WORDS])
323{
324 union acpi_object in_objs[TCI_WORDS], out_objs[TCI_WORDS + 1];
325 struct acpi_object_list params;
326 struct acpi_buffer results;
327 acpi_status status;
328 int i;
329
330 params.count = TCI_WORDS;
331 params.pointer = in_objs;
332 for (i = 0; i < TCI_WORDS; ++i) {
333 in_objs[i].type = ACPI_TYPE_INTEGER;
334 in_objs[i].integer.value = in[i];
335 }
336
337 results.length = sizeof(out_objs);
338 results.pointer = out_objs;
339
340 status = acpi_evaluate_object(dev->acpi_dev->handle,
341 (char *)dev->method_hci, ¶ms,
342 &results);
343 if ((status == AE_OK) && (out_objs->package.count <= TCI_WORDS)) {
344 for (i = 0; i < out_objs->package.count; ++i)
345 out[i] = out_objs->package.elements[i].integer.value;
346 }
347
348 return status;
349}
350
351/*
352 * Common hci tasks
353 *
354 * In addition to the ACPI status, the HCI system returns a result which
355 * may be useful (such as "not supported").
356 */
357
358static u32 hci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
359{
360 u32 in[TCI_WORDS] = { HCI_SET, reg, in1, 0, 0, 0 };
361 u32 out[TCI_WORDS];
362 acpi_status status = tci_raw(dev, in, out);
363
364 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
365}
366
367static u32 hci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
368{
369 u32 in[TCI_WORDS] = { HCI_GET, reg, 0, 0, 0, 0 };
370 u32 out[TCI_WORDS];
371 acpi_status status = tci_raw(dev, in, out);
372
373 if (ACPI_FAILURE(status))
374 return TOS_FAILURE;
375
376 *out1 = out[2];
377
378 return out[0];
379}
380
381/*
382 * Common sci tasks
383 */
384
385static int sci_open(struct toshiba_acpi_dev *dev)
386{
387 u32 in[TCI_WORDS] = { SCI_OPEN, 0, 0, 0, 0, 0 };
388 u32 out[TCI_WORDS];
389 acpi_status status = tci_raw(dev, in, out);
390
391 if (ACPI_FAILURE(status)) {
392 pr_err("ACPI call to open SCI failed\n");
393 return 0;
394 }
395
396 if (out[0] == TOS_OPEN_CLOSE_OK) {
397 return 1;
398 } else if (out[0] == TOS_ALREADY_OPEN) {
399 pr_info("Toshiba SCI already opened\n");
400 return 1;
401 } else if (out[0] == TOS_NOT_SUPPORTED) {
402 /*
403 * Some BIOSes do not have the SCI open/close functions
404 * implemented and return 0x8000 (Not Supported), failing to
405 * register some supported features.
406 *
407 * Simply return 1 if we hit those affected laptops to make the
408 * supported features work.
409 *
410 * In the case that some laptops really do not support the SCI,
411 * all the SCI dependent functions check for TOS_NOT_SUPPORTED,
412 * and thus, not registering support for the queried feature.
413 */
414 return 1;
415 } else if (out[0] == TOS_NOT_PRESENT) {
416 pr_info("Toshiba SCI is not present\n");
417 }
418
419 return 0;
420}
421
422static void sci_close(struct toshiba_acpi_dev *dev)
423{
424 u32 in[TCI_WORDS] = { SCI_CLOSE, 0, 0, 0, 0, 0 };
425 u32 out[TCI_WORDS];
426 acpi_status status = tci_raw(dev, in, out);
427
428 if (ACPI_FAILURE(status)) {
429 pr_err("ACPI call to close SCI failed\n");
430 return;
431 }
432
433 if (out[0] == TOS_OPEN_CLOSE_OK)
434 return;
435 else if (out[0] == TOS_NOT_OPENED)
436 pr_info("Toshiba SCI not opened\n");
437 else if (out[0] == TOS_NOT_PRESENT)
438 pr_info("Toshiba SCI is not present\n");
439}
440
441static u32 sci_read(struct toshiba_acpi_dev *dev, u32 reg, u32 *out1)
442{
443 u32 in[TCI_WORDS] = { SCI_GET, reg, 0, 0, 0, 0 };
444 u32 out[TCI_WORDS];
445 acpi_status status = tci_raw(dev, in, out);
446
447 if (ACPI_FAILURE(status))
448 return TOS_FAILURE;
449
450 *out1 = out[2];
451
452 return out[0];
453}
454
455static u32 sci_write(struct toshiba_acpi_dev *dev, u32 reg, u32 in1)
456{
457 u32 in[TCI_WORDS] = { SCI_SET, reg, in1, 0, 0, 0 };
458 u32 out[TCI_WORDS];
459 acpi_status status = tci_raw(dev, in, out);
460
461 return ACPI_SUCCESS(status) ? out[0] : TOS_FAILURE;
462}
463
464/* Illumination support */
465static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
466{
467 u32 in[TCI_WORDS] = { SCI_GET, SCI_ILLUMINATION, 0, 0, 0, 0 };
468 u32 out[TCI_WORDS];
469 acpi_status status;
470
471 dev->illumination_supported = 0;
472 dev->illumination_led_registered = false;
473
474 if (!sci_open(dev))
475 return;
476
477 status = tci_raw(dev, in, out);
478 sci_close(dev);
479 if (ACPI_FAILURE(status)) {
480 pr_err("ACPI call to query Illumination support failed\n");
481 return;
482 }
483
484 if (out[0] != TOS_SUCCESS)
485 return;
486
487 dev->illumination_supported = 1;
488}
489
490static void toshiba_illumination_set(struct led_classdev *cdev,
491 enum led_brightness brightness)
492{
493 struct toshiba_acpi_dev *dev = container_of(cdev,
494 struct toshiba_acpi_dev, led_dev);
495 u32 result;
496 u32 state;
497
498 /* First request : initialize communication. */
499 if (!sci_open(dev))
500 return;
501
502 /* Switch the illumination on/off */
503 state = brightness ? 1 : 0;
504 result = sci_write(dev, SCI_ILLUMINATION, state);
505 sci_close(dev);
506 if (result == TOS_FAILURE)
507 pr_err("ACPI call for illumination failed\n");
508}
509
510static enum led_brightness toshiba_illumination_get(struct led_classdev *cdev)
511{
512 struct toshiba_acpi_dev *dev = container_of(cdev,
513 struct toshiba_acpi_dev, led_dev);
514 u32 result;
515 u32 state;
516
517 /* First request : initialize communication. */
518 if (!sci_open(dev))
519 return LED_OFF;
520
521 /* Check the illumination */
522 result = sci_read(dev, SCI_ILLUMINATION, &state);
523 sci_close(dev);
524 if (result == TOS_FAILURE) {
525 pr_err("ACPI call for illumination failed\n");
526 return LED_OFF;
527 } else if (result != TOS_SUCCESS) {
528 return LED_OFF;
529 }
530
531 return state ? LED_FULL : LED_OFF;
532}
533
534/* KBD Illumination */
535static void toshiba_kbd_illum_available(struct toshiba_acpi_dev *dev)
536{
537 u32 in[TCI_WORDS] = { SCI_GET, SCI_KBD_ILLUM_STATUS, 0, 0, 0, 0 };
538 u32 out[TCI_WORDS];
539 acpi_status status;
540
541 dev->kbd_illum_supported = 0;
542 dev->kbd_led_registered = false;
543 dev->kbd_event_generated = false;
544
545 if (!sci_open(dev))
546 return;
547
548 status = tci_raw(dev, in, out);
549 sci_close(dev);
550 if (ACPI_FAILURE(status)) {
551 pr_err("ACPI call to query kbd illumination support failed\n");
552 return;
553 }
554
555 if (out[0] != TOS_SUCCESS)
556 return;
557
558 /*
559 * Check for keyboard backlight timeout max value,
560 * previous kbd backlight implementation set this to
561 * 0x3c0003, and now the new implementation set this
562 * to 0x3c001a, use this to distinguish between them.
563 */
564 if (out[3] == SCI_KBD_TIME_MAX)
565 dev->kbd_type = 2;
566 else
567 dev->kbd_type = 1;
568 /* Get the current keyboard backlight mode */
569 dev->kbd_mode = out[2] & SCI_KBD_MODE_MASK;
570 /* Get the current time (1-60 seconds) */
571 dev->kbd_time = out[2] >> HCI_MISC_SHIFT;
572 /* Flag as supported */
573 dev->kbd_illum_supported = 1;
574}
575
576static int toshiba_kbd_illum_status_set(struct toshiba_acpi_dev *dev, u32 time)
577{
578 u32 result;
579
580 if (!sci_open(dev))
581 return -EIO;
582
583 result = sci_write(dev, SCI_KBD_ILLUM_STATUS, time);
584 sci_close(dev);
585 if (result == TOS_FAILURE)
586 pr_err("ACPI call to set KBD backlight status failed\n");
587 else if (result == TOS_NOT_SUPPORTED)
588 return -ENODEV;
589
590 return result == TOS_SUCCESS ? 0 : -EIO;
591}
592
593static int toshiba_kbd_illum_status_get(struct toshiba_acpi_dev *dev, u32 *time)
594{
595 u32 result;
596
597 if (!sci_open(dev))
598 return -EIO;
599
600 result = sci_read(dev, SCI_KBD_ILLUM_STATUS, time);
601 sci_close(dev);
602 if (result == TOS_FAILURE)
603 pr_err("ACPI call to get KBD backlight status failed\n");
604 else if (result == TOS_NOT_SUPPORTED)
605 return -ENODEV;
606
607 return result == TOS_SUCCESS ? 0 : -EIO;
608}
609
610static enum led_brightness toshiba_kbd_backlight_get(struct led_classdev *cdev)
611{
612 struct toshiba_acpi_dev *dev = container_of(cdev,
613 struct toshiba_acpi_dev, kbd_led);
614 u32 result;
615 u32 state;
616
617 /* Check the keyboard backlight state */
618 result = hci_read(dev, HCI_KBD_ILLUMINATION, &state);
619 if (result == TOS_FAILURE) {
620 pr_err("ACPI call to get the keyboard backlight failed\n");
621 return LED_OFF;
622 } else if (result != TOS_SUCCESS) {
623 return LED_OFF;
624 }
625
626 return state ? LED_FULL : LED_OFF;
627}
628
629static void toshiba_kbd_backlight_set(struct led_classdev *cdev,
630 enum led_brightness brightness)
631{
632 struct toshiba_acpi_dev *dev = container_of(cdev,
633 struct toshiba_acpi_dev, kbd_led);
634 u32 result;
635 u32 state;
636
637 /* Set the keyboard backlight state */
638 state = brightness ? 1 : 0;
639 result = hci_write(dev, HCI_KBD_ILLUMINATION, state);
640 if (result == TOS_FAILURE)
641 pr_err("ACPI call to set KBD Illumination mode failed\n");
642}
643
644/* TouchPad support */
645static int toshiba_touchpad_set(struct toshiba_acpi_dev *dev, u32 state)
646{
647 u32 result;
648
649 if (!sci_open(dev))
650 return -EIO;
651
652 result = sci_write(dev, SCI_TOUCHPAD, state);
653 sci_close(dev);
654 if (result == TOS_FAILURE)
655 pr_err("ACPI call to set the touchpad failed\n");
656 else if (result == TOS_NOT_SUPPORTED)
657 return -ENODEV;
658
659 return result == TOS_SUCCESS ? 0 : -EIO;
660}
661
662static int toshiba_touchpad_get(struct toshiba_acpi_dev *dev, u32 *state)
663{
664 u32 result;
665
666 if (!sci_open(dev))
667 return -EIO;
668
669 result = sci_read(dev, SCI_TOUCHPAD, state);
670 sci_close(dev);
671 if (result == TOS_FAILURE)
672 pr_err("ACPI call to query the touchpad failed\n");
673 else if (result == TOS_NOT_SUPPORTED)
674 return -ENODEV;
675
676 return result == TOS_SUCCESS ? 0 : -EIO;
677}
678
679/* Eco Mode support */
680static void toshiba_eco_mode_available(struct toshiba_acpi_dev *dev)
681{
682 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 0, 0, 0 };
683 u32 out[TCI_WORDS];
684 acpi_status status;
685
686 dev->eco_supported = 0;
687 dev->eco_led_registered = false;
688
689 status = tci_raw(dev, in, out);
690 if (ACPI_FAILURE(status)) {
691 pr_err("ACPI call to get ECO led failed\n");
692 return;
693 }
694
695 if (out[0] == TOS_INPUT_DATA_ERROR) {
696 /*
697 * If we receive 0x8300 (Input Data Error), it means that the
698 * LED device is present, but that we just screwed the input
699 * parameters.
700 *
701 * Let's query the status of the LED to see if we really have a
702 * success response, indicating the actual presense of the LED,
703 * bail out otherwise.
704 */
705 in[3] = 1;
706 status = tci_raw(dev, in, out);
707 if (ACPI_FAILURE(status)) {
708 pr_err("ACPI call to get ECO led failed\n");
709 return;
710 }
711
712 if (out[0] != TOS_SUCCESS)
713 return;
714
715 dev->eco_supported = 1;
716 }
717}
718
719static enum led_brightness
720toshiba_eco_mode_get_status(struct led_classdev *cdev)
721{
722 struct toshiba_acpi_dev *dev = container_of(cdev,
723 struct toshiba_acpi_dev, eco_led);
724 u32 in[TCI_WORDS] = { HCI_GET, HCI_ECO_MODE, 0, 1, 0, 0 };
725 u32 out[TCI_WORDS];
726 acpi_status status;
727
728 status = tci_raw(dev, in, out);
729 if (ACPI_FAILURE(status)) {
730 pr_err("ACPI call to get ECO led failed\n");
731 return LED_OFF;
732 }
733
734 if (out[0] != TOS_SUCCESS)
735 return LED_OFF;
736
737 return out[2] ? LED_FULL : LED_OFF;
738}
739
740static void toshiba_eco_mode_set_status(struct led_classdev *cdev,
741 enum led_brightness brightness)
742{
743 struct toshiba_acpi_dev *dev = container_of(cdev,
744 struct toshiba_acpi_dev, eco_led);
745 u32 in[TCI_WORDS] = { HCI_SET, HCI_ECO_MODE, 0, 1, 0, 0 };
746 u32 out[TCI_WORDS];
747 acpi_status status;
748
749 /* Switch the Eco Mode led on/off */
750 in[2] = (brightness) ? 1 : 0;
751 status = tci_raw(dev, in, out);
752 if (ACPI_FAILURE(status))
753 pr_err("ACPI call to set ECO led failed\n");
754}
755
756/* Accelerometer support */
757static void toshiba_accelerometer_available(struct toshiba_acpi_dev *dev)
758{
759 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER2, 0, 0, 0, 0 };
760 u32 out[TCI_WORDS];
761 acpi_status status;
762
763 dev->accelerometer_supported = 0;
764
765 /*
766 * Check if the accelerometer call exists,
767 * this call also serves as initialization
768 */
769 status = tci_raw(dev, in, out);
770 if (ACPI_FAILURE(status)) {
771 pr_err("ACPI call to query the accelerometer failed\n");
772 return;
773 }
774
775 if (out[0] != TOS_SUCCESS)
776 return;
777
778 dev->accelerometer_supported = 1;
779}
780
781static int toshiba_accelerometer_get(struct toshiba_acpi_dev *dev,
782 u32 *xy, u32 *z)
783{
784 u32 in[TCI_WORDS] = { HCI_GET, HCI_ACCELEROMETER, 0, 1, 0, 0 };
785 u32 out[TCI_WORDS];
786 acpi_status status;
787
788 /* Check the Accelerometer status */
789 status = tci_raw(dev, in, out);
790 if (ACPI_FAILURE(status)) {
791 pr_err("ACPI call to query the accelerometer failed\n");
792 return -EIO;
793 }
794
795 if (out[0] == TOS_NOT_SUPPORTED)
796 return -ENODEV;
797
798 if (out[0] != TOS_SUCCESS)
799 return -EIO;
800
801 *xy = out[2];
802 *z = out[4];
803
804 return 0;
805}
806
807/* Sleep (Charge and Music) utilities support */
808static void toshiba_usb_sleep_charge_available(struct toshiba_acpi_dev *dev)
809{
810 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
811 u32 out[TCI_WORDS];
812 acpi_status status;
813
814 dev->usb_sleep_charge_supported = 0;
815
816 if (!sci_open(dev))
817 return;
818
819 status = tci_raw(dev, in, out);
820 if (ACPI_FAILURE(status)) {
821 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
822 sci_close(dev);
823 return;
824 }
825
826 if (out[0] != TOS_SUCCESS) {
827 sci_close(dev);
828 return;
829 }
830
831 dev->usbsc_mode_base = out[4];
832
833 in[5] = SCI_USB_CHARGE_BAT_LVL;
834 status = tci_raw(dev, in, out);
835 sci_close(dev);
836 if (ACPI_FAILURE(status)) {
837 pr_err("ACPI call to get USB Sleep and Charge mode failed\n");
838 return;
839 }
840
841 if (out[0] != TOS_SUCCESS)
842 return;
843
844 dev->usbsc_bat_level = out[2];
845 /* Flag as supported */
846 dev->usb_sleep_charge_supported = 1;
847}
848
849static int toshiba_usb_sleep_charge_get(struct toshiba_acpi_dev *dev,
850 u32 *mode)
851{
852 u32 result;
853
854 if (!sci_open(dev))
855 return -EIO;
856
857 result = sci_read(dev, SCI_USB_SLEEP_CHARGE, mode);
858 sci_close(dev);
859 if (result == TOS_FAILURE)
860 pr_err("ACPI call to set USB S&C mode failed\n");
861 else if (result == TOS_NOT_SUPPORTED)
862 return -ENODEV;
863
864 return result == TOS_SUCCESS ? 0 : -EIO;
865}
866
867static int toshiba_usb_sleep_charge_set(struct toshiba_acpi_dev *dev,
868 u32 mode)
869{
870 u32 result;
871
872 if (!sci_open(dev))
873 return -EIO;
874
875 result = sci_write(dev, SCI_USB_SLEEP_CHARGE, mode);
876 sci_close(dev);
877 if (result == TOS_FAILURE)
878 pr_err("ACPI call to set USB S&C mode failed\n");
879 else if (result == TOS_NOT_SUPPORTED)
880 return -ENODEV;
881
882 return result == TOS_SUCCESS ? 0 : -EIO;
883}
884
885static int toshiba_sleep_functions_status_get(struct toshiba_acpi_dev *dev,
886 u32 *mode)
887{
888 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
889 u32 out[TCI_WORDS];
890 acpi_status status;
891
892 if (!sci_open(dev))
893 return -EIO;
894
895 in[5] = SCI_USB_CHARGE_BAT_LVL;
896 status = tci_raw(dev, in, out);
897 sci_close(dev);
898 if (ACPI_FAILURE(status)) {
899 pr_err("ACPI call to get USB S&C battery level failed\n");
900 return -EIO;
901 }
902
903 if (out[0] == TOS_NOT_SUPPORTED)
904 return -ENODEV;
905
906 if (out[0] != TOS_SUCCESS)
907 return -EIO;
908
909 *mode = out[2];
910
911 return 0;
912
913}
914
915static int toshiba_sleep_functions_status_set(struct toshiba_acpi_dev *dev,
916 u32 mode)
917{
918 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
919 u32 out[TCI_WORDS];
920 acpi_status status;
921
922 if (!sci_open(dev))
923 return -EIO;
924
925 in[2] = mode;
926 in[5] = SCI_USB_CHARGE_BAT_LVL;
927 status = tci_raw(dev, in, out);
928 sci_close(dev);
929 if (ACPI_FAILURE(status)) {
930 pr_err("ACPI call to set USB S&C battery level failed\n");
931 return -EIO;
932 }
933
934 if (out[0] == TOS_NOT_SUPPORTED)
935 return -ENODEV;
936
937 return out[0] == TOS_SUCCESS ? 0 : -EIO;
938}
939
940static int toshiba_usb_rapid_charge_get(struct toshiba_acpi_dev *dev,
941 u32 *state)
942{
943 u32 in[TCI_WORDS] = { SCI_GET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
944 u32 out[TCI_WORDS];
945 acpi_status status;
946
947 if (!sci_open(dev))
948 return -EIO;
949
950 in[5] = SCI_USB_CHARGE_RAPID_DSP;
951 status = tci_raw(dev, in, out);
952 sci_close(dev);
953 if (ACPI_FAILURE(status)) {
954 pr_err("ACPI call to get USB Rapid Charge failed\n");
955 return -EIO;
956 }
957
958 if (out[0] == TOS_NOT_SUPPORTED)
959 return -ENODEV;
960
961 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
962 return -EIO;
963
964 *state = out[2];
965
966 return 0;
967}
968
969static int toshiba_usb_rapid_charge_set(struct toshiba_acpi_dev *dev,
970 u32 state)
971{
972 u32 in[TCI_WORDS] = { SCI_SET, SCI_USB_SLEEP_CHARGE, 0, 0, 0, 0 };
973 u32 out[TCI_WORDS];
974 acpi_status status;
975
976 if (!sci_open(dev))
977 return -EIO;
978
979 in[2] = state;
980 in[5] = SCI_USB_CHARGE_RAPID_DSP;
981 status = tci_raw(dev, in, out);
982 sci_close(dev);
983 if (ACPI_FAILURE(status)) {
984 pr_err("ACPI call to set USB Rapid Charge failed\n");
985 return -EIO;
986 }
987
988 if (out[0] == TOS_NOT_SUPPORTED)
989 return -ENODEV;
990
991 return (out[0] == TOS_SUCCESS || out[0] == TOS_SUCCESS2) ? 0 : -EIO;
992}
993
994static int toshiba_usb_sleep_music_get(struct toshiba_acpi_dev *dev, u32 *state)
995{
996 u32 result;
997
998 if (!sci_open(dev))
999 return -EIO;
1000
1001 result = sci_read(dev, SCI_USB_SLEEP_MUSIC, state);
1002 sci_close(dev);
1003 if (result == TOS_FAILURE)
1004 pr_err("ACPI call to get Sleep and Music failed\n");
1005 else if (result == TOS_NOT_SUPPORTED)
1006 return -ENODEV;
1007
1008 return result == TOS_SUCCESS ? 0 : -EIO;
1009}
1010
1011static int toshiba_usb_sleep_music_set(struct toshiba_acpi_dev *dev, u32 state)
1012{
1013 u32 result;
1014
1015 if (!sci_open(dev))
1016 return -EIO;
1017
1018 result = sci_write(dev, SCI_USB_SLEEP_MUSIC, state);
1019 sci_close(dev);
1020 if (result == TOS_FAILURE)
1021 pr_err("ACPI call to set Sleep and Music failed\n");
1022 else if (result == TOS_NOT_SUPPORTED)
1023 return -ENODEV;
1024
1025 return result == TOS_SUCCESS ? 0 : -EIO;
1026}
1027
1028/* Keyboard function keys */
1029static int toshiba_function_keys_get(struct toshiba_acpi_dev *dev, u32 *mode)
1030{
1031 u32 result;
1032
1033 if (!sci_open(dev))
1034 return -EIO;
1035
1036 result = sci_read(dev, SCI_KBD_FUNCTION_KEYS, mode);
1037 sci_close(dev);
1038 if (result == TOS_FAILURE)
1039 pr_err("ACPI call to get KBD function keys failed\n");
1040 else if (result == TOS_NOT_SUPPORTED)
1041 return -ENODEV;
1042
1043 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1044}
1045
1046static int toshiba_function_keys_set(struct toshiba_acpi_dev *dev, u32 mode)
1047{
1048 u32 result;
1049
1050 if (!sci_open(dev))
1051 return -EIO;
1052
1053 result = sci_write(dev, SCI_KBD_FUNCTION_KEYS, mode);
1054 sci_close(dev);
1055 if (result == TOS_FAILURE)
1056 pr_err("ACPI call to set KBD function keys failed\n");
1057 else if (result == TOS_NOT_SUPPORTED)
1058 return -ENODEV;
1059
1060 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1061}
1062
1063/* Panel Power ON */
1064static int toshiba_panel_power_on_get(struct toshiba_acpi_dev *dev, u32 *state)
1065{
1066 u32 result;
1067
1068 if (!sci_open(dev))
1069 return -EIO;
1070
1071 result = sci_read(dev, SCI_PANEL_POWER_ON, state);
1072 sci_close(dev);
1073 if (result == TOS_FAILURE)
1074 pr_err("ACPI call to get Panel Power ON failed\n");
1075 else if (result == TOS_NOT_SUPPORTED)
1076 return -ENODEV;
1077
1078 return result == TOS_SUCCESS ? 0 : -EIO;
1079}
1080
1081static int toshiba_panel_power_on_set(struct toshiba_acpi_dev *dev, u32 state)
1082{
1083 u32 result;
1084
1085 if (!sci_open(dev))
1086 return -EIO;
1087
1088 result = sci_write(dev, SCI_PANEL_POWER_ON, state);
1089 sci_close(dev);
1090 if (result == TOS_FAILURE)
1091 pr_err("ACPI call to set Panel Power ON failed\n");
1092 else if (result == TOS_NOT_SUPPORTED)
1093 return -ENODEV;
1094
1095 return result == TOS_SUCCESS ? 0 : -EIO;
1096}
1097
1098/* USB Three */
1099static int toshiba_usb_three_get(struct toshiba_acpi_dev *dev, u32 *state)
1100{
1101 u32 result;
1102
1103 if (!sci_open(dev))
1104 return -EIO;
1105
1106 result = sci_read(dev, SCI_USB_THREE, state);
1107 sci_close(dev);
1108 if (result == TOS_FAILURE)
1109 pr_err("ACPI call to get USB 3 failed\n");
1110 else if (result == TOS_NOT_SUPPORTED)
1111 return -ENODEV;
1112
1113 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1114}
1115
1116static int toshiba_usb_three_set(struct toshiba_acpi_dev *dev, u32 state)
1117{
1118 u32 result;
1119
1120 if (!sci_open(dev))
1121 return -EIO;
1122
1123 result = sci_write(dev, SCI_USB_THREE, state);
1124 sci_close(dev);
1125 if (result == TOS_FAILURE)
1126 pr_err("ACPI call to set USB 3 failed\n");
1127 else if (result == TOS_NOT_SUPPORTED)
1128 return -ENODEV;
1129
1130 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1131}
1132
1133/* Hotkey Event type */
1134static int toshiba_hotkey_event_type_get(struct toshiba_acpi_dev *dev,
1135 u32 *type)
1136{
1137 u32 in[TCI_WORDS] = { HCI_GET, HCI_SYSTEM_INFO, 0x03, 0, 0, 0 };
1138 u32 out[TCI_WORDS];
1139 acpi_status status;
1140
1141 status = tci_raw(dev, in, out);
1142 if (ACPI_FAILURE(status)) {
1143 pr_err("ACPI call to get System type failed\n");
1144 return -EIO;
1145 }
1146
1147 if (out[0] == TOS_NOT_SUPPORTED)
1148 return -ENODEV;
1149
1150 if (out[0] != TOS_SUCCESS)
1151 return -EIO;
1152
1153 *type = out[3];
1154
1155 return 0;
1156}
1157
1158/* Wireless status (RFKill, WLAN, BT, WWAN) */
1159static int toshiba_wireless_status(struct toshiba_acpi_dev *dev)
1160{
1161 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1162 u32 out[TCI_WORDS];
1163 acpi_status status;
1164
1165 in[3] = HCI_WIRELESS_STATUS;
1166 status = tci_raw(dev, in, out);
1167
1168 if (ACPI_FAILURE(status)) {
1169 pr_err("ACPI call to get Wireless status failed\n");
1170 return -EIO;
1171 }
1172
1173 if (out[0] == TOS_NOT_SUPPORTED)
1174 return -ENODEV;
1175
1176 if (out[0] != TOS_SUCCESS)
1177 return -EIO;
1178
1179 dev->killswitch = !!(out[2] & HCI_WIRELESS_STATUS);
1180
1181 return 0;
1182}
1183
1184/* WWAN */
1185static void toshiba_wwan_available(struct toshiba_acpi_dev *dev)
1186{
1187 u32 in[TCI_WORDS] = { HCI_GET, HCI_WIRELESS, 0, 0, 0, 0 };
1188 u32 out[TCI_WORDS];
1189 acpi_status status;
1190
1191 dev->wwan_supported = 0;
1192
1193 /*
1194 * WWAN support can be queried by setting the in[3] value to
1195 * HCI_WIRELESS_WWAN (0x03).
1196 *
1197 * If supported, out[0] contains TOS_SUCCESS and out[2] contains
1198 * HCI_WIRELESS_WWAN_STATUS (0x2000).
1199 *
1200 * If not supported, out[0] contains TOS_INPUT_DATA_ERROR (0x8300)
1201 * or TOS_NOT_SUPPORTED (0x8000).
1202 */
1203 in[3] = HCI_WIRELESS_WWAN;
1204 status = tci_raw(dev, in, out);
1205 if (ACPI_FAILURE(status)) {
1206 pr_err("ACPI call to get WWAN status failed\n");
1207 return;
1208 }
1209
1210 if (out[0] != TOS_SUCCESS)
1211 return;
1212
1213 dev->wwan_supported = (out[2] == HCI_WIRELESS_WWAN_STATUS);
1214}
1215
1216static int toshiba_wwan_set(struct toshiba_acpi_dev *dev, u32 state)
1217{
1218 u32 in[TCI_WORDS] = { HCI_SET, HCI_WIRELESS, state, 0, 0, 0 };
1219 u32 out[TCI_WORDS];
1220 acpi_status status;
1221
1222 in[3] = HCI_WIRELESS_WWAN_STATUS;
1223 status = tci_raw(dev, in, out);
1224 if (ACPI_FAILURE(status)) {
1225 pr_err("ACPI call to set WWAN status failed\n");
1226 return -EIO;
1227 }
1228
1229 if (out[0] == TOS_NOT_SUPPORTED)
1230 return -ENODEV;
1231
1232 if (out[0] != TOS_SUCCESS)
1233 return -EIO;
1234
1235 /*
1236 * Some devices only need to call HCI_WIRELESS_WWAN_STATUS to
1237 * (de)activate the device, but some others need the
1238 * HCI_WIRELESS_WWAN_POWER call as well.
1239 */
1240 in[3] = HCI_WIRELESS_WWAN_POWER;
1241 status = tci_raw(dev, in, out);
1242 if (ACPI_FAILURE(status)) {
1243 pr_err("ACPI call to set WWAN power failed\n");
1244 return -EIO;
1245 }
1246
1247 if (out[0] == TOS_NOT_SUPPORTED)
1248 return -ENODEV;
1249
1250 return out[0] == TOS_SUCCESS ? 0 : -EIO;
1251}
1252
1253/* Cooling Method */
1254static void toshiba_cooling_method_available(struct toshiba_acpi_dev *dev)
1255{
1256 u32 in[TCI_WORDS] = { HCI_GET, HCI_COOLING_METHOD, 0, 0, 0, 0 };
1257 u32 out[TCI_WORDS];
1258 acpi_status status;
1259
1260 dev->cooling_method_supported = 0;
1261 dev->max_cooling_method = 0;
1262
1263 status = tci_raw(dev, in, out);
1264 if (ACPI_FAILURE(status)) {
1265 pr_err("ACPI call to get Cooling Method failed\n");
1266 return;
1267 }
1268
1269 if (out[0] != TOS_SUCCESS && out[0] != TOS_SUCCESS2)
1270 return;
1271
1272 dev->cooling_method_supported = 1;
1273 dev->max_cooling_method = out[3];
1274}
1275
1276static int toshiba_cooling_method_get(struct toshiba_acpi_dev *dev, u32 *state)
1277{
1278 u32 result = hci_read(dev, HCI_COOLING_METHOD, state);
1279
1280 if (result == TOS_FAILURE)
1281 pr_err("ACPI call to get Cooling Method failed\n");
1282
1283 if (result == TOS_NOT_SUPPORTED)
1284 return -ENODEV;
1285
1286 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1287}
1288
1289static int toshiba_cooling_method_set(struct toshiba_acpi_dev *dev, u32 state)
1290{
1291 u32 result = hci_write(dev, HCI_COOLING_METHOD, state);
1292
1293 if (result == TOS_FAILURE)
1294 pr_err("ACPI call to set Cooling Method failed\n");
1295
1296 if (result == TOS_NOT_SUPPORTED)
1297 return -ENODEV;
1298
1299 return (result == TOS_SUCCESS || result == TOS_SUCCESS2) ? 0 : -EIO;
1300}
1301
1302/* Transflective Backlight */
1303static int get_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 *status)
1304{
1305 u32 result = hci_read(dev, HCI_TR_BACKLIGHT, status);
1306
1307 if (result == TOS_FAILURE)
1308 pr_err("ACPI call to get Transflective Backlight failed\n");
1309 else if (result == TOS_NOT_SUPPORTED)
1310 return -ENODEV;
1311
1312 return result == TOS_SUCCESS ? 0 : -EIO;
1313}
1314
1315static int set_tr_backlight_status(struct toshiba_acpi_dev *dev, u32 status)
1316{
1317 u32 result = hci_write(dev, HCI_TR_BACKLIGHT, !status);
1318
1319 if (result == TOS_FAILURE)
1320 pr_err("ACPI call to set Transflective Backlight failed\n");
1321 else if (result == TOS_NOT_SUPPORTED)
1322 return -ENODEV;
1323
1324 return result == TOS_SUCCESS ? 0 : -EIO;
1325}
1326
1327static struct proc_dir_entry *toshiba_proc_dir;
1328
1329/* LCD Brightness */
1330static int __get_lcd_brightness(struct toshiba_acpi_dev *dev)
1331{
1332 int brightness = 0;
1333 u32 result;
1334 u32 value;
1335
1336 if (dev->tr_backlight_supported) {
1337 int ret = get_tr_backlight_status(dev, &value);
1338
1339 if (ret)
1340 return ret;
1341 if (value)
1342 return 0;
1343 brightness++;
1344 }
1345
1346 result = hci_read(dev, HCI_LCD_BRIGHTNESS, &value);
1347 if (result == TOS_FAILURE)
1348 pr_err("ACPI call to get LCD Brightness failed\n");
1349 else if (result == TOS_NOT_SUPPORTED)
1350 return -ENODEV;
1351
1352 return result == TOS_SUCCESS ?
1353 brightness + (value >> HCI_LCD_BRIGHTNESS_SHIFT) :
1354 -EIO;
1355}
1356
1357static int get_lcd_brightness(struct backlight_device *bd)
1358{
1359 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1360
1361 return __get_lcd_brightness(dev);
1362}
1363
1364static int lcd_proc_show(struct seq_file *m, void *v)
1365{
1366 struct toshiba_acpi_dev *dev = m->private;
1367 int levels;
1368 int value;
1369
1370 if (!dev->backlight_dev)
1371 return -ENODEV;
1372
1373 levels = dev->backlight_dev->props.max_brightness + 1;
1374 value = get_lcd_brightness(dev->backlight_dev);
1375 if (value < 0) {
1376 pr_err("Error reading LCD brightness\n");
1377 return value;
1378 }
1379
1380 seq_printf(m, "brightness: %d\n", value);
1381 seq_printf(m, "brightness_levels: %d\n", levels);
1382
1383 return 0;
1384}
1385
1386static int lcd_proc_open(struct inode *inode, struct file *file)
1387{
1388 return single_open(file, lcd_proc_show, PDE_DATA(inode));
1389}
1390
1391static int set_lcd_brightness(struct toshiba_acpi_dev *dev, int value)
1392{
1393 u32 result;
1394
1395 if (dev->tr_backlight_supported) {
1396 int ret = set_tr_backlight_status(dev, !value);
1397
1398 if (ret)
1399 return ret;
1400 if (value)
1401 value--;
1402 }
1403
1404 value = value << HCI_LCD_BRIGHTNESS_SHIFT;
1405 result = hci_write(dev, HCI_LCD_BRIGHTNESS, value);
1406 if (result == TOS_FAILURE)
1407 pr_err("ACPI call to set LCD Brightness failed\n");
1408 else if (result == TOS_NOT_SUPPORTED)
1409 return -ENODEV;
1410
1411 return result == TOS_SUCCESS ? 0 : -EIO;
1412}
1413
1414static int set_lcd_status(struct backlight_device *bd)
1415{
1416 struct toshiba_acpi_dev *dev = bl_get_data(bd);
1417
1418 return set_lcd_brightness(dev, bd->props.brightness);
1419}
1420
1421static ssize_t lcd_proc_write(struct file *file, const char __user *buf,
1422 size_t count, loff_t *pos)
1423{
1424 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1425 char cmd[42];
1426 size_t len;
1427 int levels;
1428 int value;
1429
1430 len = min(count, sizeof(cmd) - 1);
1431 if (copy_from_user(cmd, buf, len))
1432 return -EFAULT;
1433 cmd[len] = '\0';
1434
1435 levels = dev->backlight_dev->props.max_brightness + 1;
1436 if (sscanf(cmd, " brightness : %i", &value) != 1 &&
1437 value < 0 && value > levels)
1438 return -EINVAL;
1439
1440 if (set_lcd_brightness(dev, value))
1441 return -EIO;
1442
1443 return count;
1444}
1445
1446static const struct file_operations lcd_proc_fops = {
1447 .owner = THIS_MODULE,
1448 .open = lcd_proc_open,
1449 .read = seq_read,
1450 .llseek = seq_lseek,
1451 .release = single_release,
1452 .write = lcd_proc_write,
1453};
1454
1455/* Video-Out */
1456static int get_video_status(struct toshiba_acpi_dev *dev, u32 *status)
1457{
1458 u32 result = hci_read(dev, HCI_VIDEO_OUT, status);
1459
1460 if (result == TOS_FAILURE)
1461 pr_err("ACPI call to get Video-Out failed\n");
1462 else if (result == TOS_NOT_SUPPORTED)
1463 return -ENODEV;
1464
1465 return result == TOS_SUCCESS ? 0 : -EIO;
1466}
1467
1468static int video_proc_show(struct seq_file *m, void *v)
1469{
1470 struct toshiba_acpi_dev *dev = m->private;
1471 int is_lcd, is_crt, is_tv;
1472 u32 value;
1473
1474 if (get_video_status(dev, &value))
1475 return -EIO;
1476
1477 is_lcd = (value & HCI_VIDEO_OUT_LCD) ? 1 : 0;
1478 is_crt = (value & HCI_VIDEO_OUT_CRT) ? 1 : 0;
1479 is_tv = (value & HCI_VIDEO_OUT_TV) ? 1 : 0;
1480
1481 seq_printf(m, "lcd_out: %d\n", is_lcd);
1482 seq_printf(m, "crt_out: %d\n", is_crt);
1483 seq_printf(m, "tv_out: %d\n", is_tv);
1484
1485 return 0;
1486}
1487
1488static int video_proc_open(struct inode *inode, struct file *file)
1489{
1490 return single_open(file, video_proc_show, PDE_DATA(inode));
1491}
1492
1493static ssize_t video_proc_write(struct file *file, const char __user *buf,
1494 size_t count, loff_t *pos)
1495{
1496 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1497 char *buffer;
1498 char *cmd;
1499 int lcd_out, crt_out, tv_out;
1500 int remain = count;
1501 int value;
1502 int ret;
1503 u32 video_out;
1504
1505 cmd = memdup_user_nul(buf, count);
1506 if (IS_ERR(cmd))
1507 return PTR_ERR(cmd);
1508
1509 buffer = cmd;
1510
1511 /*
1512 * Scan expression. Multiple expressions may be delimited with ;
1513 * NOTE: To keep scanning simple, invalid fields are ignored.
1514 */
1515 while (remain) {
1516 if (sscanf(buffer, " lcd_out : %i", &value) == 1)
1517 lcd_out = value & 1;
1518 else if (sscanf(buffer, " crt_out : %i", &value) == 1)
1519 crt_out = value & 1;
1520 else if (sscanf(buffer, " tv_out : %i", &value) == 1)
1521 tv_out = value & 1;
1522 /* Advance to one character past the next ; */
1523 do {
1524 ++buffer;
1525 --remain;
1526 } while (remain && *(buffer - 1) != ';');
1527 }
1528
1529 kfree(cmd);
1530
1531 lcd_out = crt_out = tv_out = -1;
1532 ret = get_video_status(dev, &video_out);
1533 if (!ret) {
1534 unsigned int new_video_out = video_out;
1535
1536 if (lcd_out != -1)
1537 _set_bit(&new_video_out, HCI_VIDEO_OUT_LCD, lcd_out);
1538 if (crt_out != -1)
1539 _set_bit(&new_video_out, HCI_VIDEO_OUT_CRT, crt_out);
1540 if (tv_out != -1)
1541 _set_bit(&new_video_out, HCI_VIDEO_OUT_TV, tv_out);
1542 /*
1543 * To avoid unnecessary video disruption, only write the new
1544 * video setting if something changed.
1545 */
1546 if (new_video_out != video_out)
1547 ret = write_acpi_int(METHOD_VIDEO_OUT, new_video_out);
1548 }
1549
1550 return ret ? -EIO : count;
1551}
1552
1553static const struct file_operations video_proc_fops = {
1554 .owner = THIS_MODULE,
1555 .open = video_proc_open,
1556 .read = seq_read,
1557 .llseek = seq_lseek,
1558 .release = single_release,
1559 .write = video_proc_write,
1560};
1561
1562/* Fan status */
1563static int get_fan_status(struct toshiba_acpi_dev *dev, u32 *status)
1564{
1565 u32 result = hci_read(dev, HCI_FAN, status);
1566
1567 if (result == TOS_FAILURE)
1568 pr_err("ACPI call to get Fan status failed\n");
1569 else if (result == TOS_NOT_SUPPORTED)
1570 return -ENODEV;
1571
1572 return result == TOS_SUCCESS ? 0 : -EIO;
1573}
1574
1575static int set_fan_status(struct toshiba_acpi_dev *dev, u32 status)
1576{
1577 u32 result = hci_write(dev, HCI_FAN, status);
1578
1579 if (result == TOS_FAILURE)
1580 pr_err("ACPI call to set Fan status failed\n");
1581 else if (result == TOS_NOT_SUPPORTED)
1582 return -ENODEV;
1583
1584 return result == TOS_SUCCESS ? 0 : -EIO;
1585}
1586
1587static int fan_proc_show(struct seq_file *m, void *v)
1588{
1589 struct toshiba_acpi_dev *dev = m->private;
1590 u32 value;
1591
1592 if (get_fan_status(dev, &value))
1593 return -EIO;
1594
1595 seq_printf(m, "running: %d\n", (value > 0));
1596 seq_printf(m, "force_on: %d\n", dev->force_fan);
1597
1598 return 0;
1599}
1600
1601static int fan_proc_open(struct inode *inode, struct file *file)
1602{
1603 return single_open(file, fan_proc_show, PDE_DATA(inode));
1604}
1605
1606static ssize_t fan_proc_write(struct file *file, const char __user *buf,
1607 size_t count, loff_t *pos)
1608{
1609 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1610 char cmd[42];
1611 size_t len;
1612 int value;
1613
1614 len = min(count, sizeof(cmd) - 1);
1615 if (copy_from_user(cmd, buf, len))
1616 return -EFAULT;
1617 cmd[len] = '\0';
1618
1619 if (sscanf(cmd, " force_on : %i", &value) != 1 &&
1620 value != 0 && value != 1)
1621 return -EINVAL;
1622
1623 if (set_fan_status(dev, value))
1624 return -EIO;
1625
1626 dev->force_fan = value;
1627
1628 return count;
1629}
1630
1631static const struct file_operations fan_proc_fops = {
1632 .owner = THIS_MODULE,
1633 .open = fan_proc_open,
1634 .read = seq_read,
1635 .llseek = seq_lseek,
1636 .release = single_release,
1637 .write = fan_proc_write,
1638};
1639
1640static int keys_proc_show(struct seq_file *m, void *v)
1641{
1642 struct toshiba_acpi_dev *dev = m->private;
1643
1644 seq_printf(m, "hotkey_ready: %d\n", dev->key_event_valid);
1645 seq_printf(m, "hotkey: 0x%04x\n", dev->last_key_event);
1646
1647 return 0;
1648}
1649
1650static int keys_proc_open(struct inode *inode, struct file *file)
1651{
1652 return single_open(file, keys_proc_show, PDE_DATA(inode));
1653}
1654
1655static ssize_t keys_proc_write(struct file *file, const char __user *buf,
1656 size_t count, loff_t *pos)
1657{
1658 struct toshiba_acpi_dev *dev = PDE_DATA(file_inode(file));
1659 char cmd[42];
1660 size_t len;
1661 int value;
1662
1663 len = min(count, sizeof(cmd) - 1);
1664 if (copy_from_user(cmd, buf, len))
1665 return -EFAULT;
1666 cmd[len] = '\0';
1667
1668 if (sscanf(cmd, " hotkey_ready : %i", &value) == 1 && value == 0)
1669 dev->key_event_valid = 0;
1670 else
1671 return -EINVAL;
1672
1673 return count;
1674}
1675
1676static const struct file_operations keys_proc_fops = {
1677 .owner = THIS_MODULE,
1678 .open = keys_proc_open,
1679 .read = seq_read,
1680 .llseek = seq_lseek,
1681 .release = single_release,
1682 .write = keys_proc_write,
1683};
1684
1685static int version_proc_show(struct seq_file *m, void *v)
1686{
1687 seq_printf(m, "driver: %s\n", TOSHIBA_ACPI_VERSION);
1688 seq_printf(m, "proc_interface: %d\n", PROC_INTERFACE_VERSION);
1689 return 0;
1690}
1691
1692static int version_proc_open(struct inode *inode, struct file *file)
1693{
1694 return single_open(file, version_proc_show, PDE_DATA(inode));
1695}
1696
1697static const struct file_operations version_proc_fops = {
1698 .owner = THIS_MODULE,
1699 .open = version_proc_open,
1700 .read = seq_read,
1701 .llseek = seq_lseek,
1702 .release = single_release,
1703};
1704
1705/*
1706 * Proc and module init
1707 */
1708
1709#define PROC_TOSHIBA "toshiba"
1710
1711static void create_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1712{
1713 if (dev->backlight_dev)
1714 proc_create_data("lcd", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1715 &lcd_proc_fops, dev);
1716 if (dev->video_supported)
1717 proc_create_data("video", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1718 &video_proc_fops, dev);
1719 if (dev->fan_supported)
1720 proc_create_data("fan", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1721 &fan_proc_fops, dev);
1722 if (dev->hotkey_dev)
1723 proc_create_data("keys", S_IRUGO | S_IWUSR, toshiba_proc_dir,
1724 &keys_proc_fops, dev);
1725 proc_create_data("version", S_IRUGO, toshiba_proc_dir,
1726 &version_proc_fops, dev);
1727}
1728
1729static void remove_toshiba_proc_entries(struct toshiba_acpi_dev *dev)
1730{
1731 if (dev->backlight_dev)
1732 remove_proc_entry("lcd", toshiba_proc_dir);
1733 if (dev->video_supported)
1734 remove_proc_entry("video", toshiba_proc_dir);
1735 if (dev->fan_supported)
1736 remove_proc_entry("fan", toshiba_proc_dir);
1737 if (dev->hotkey_dev)
1738 remove_proc_entry("keys", toshiba_proc_dir);
1739 remove_proc_entry("version", toshiba_proc_dir);
1740}
1741
1742static const struct backlight_ops toshiba_backlight_data = {
1743 .options = BL_CORE_SUSPENDRESUME,
1744 .get_brightness = get_lcd_brightness,
1745 .update_status = set_lcd_status,
1746};
1747
1748/* Keyboard backlight work */
1749static void toshiba_acpi_kbd_bl_work(struct work_struct *work);
1750
1751static DECLARE_WORK(kbd_bl_work, toshiba_acpi_kbd_bl_work);
1752
1753/*
1754 * Sysfs files
1755 */
1756static ssize_t version_show(struct device *dev,
1757 struct device_attribute *attr, char *buf)
1758{
1759 return sprintf(buf, "%s\n", TOSHIBA_ACPI_VERSION);
1760}
1761static DEVICE_ATTR_RO(version);
1762
1763static ssize_t fan_store(struct device *dev,
1764 struct device_attribute *attr,
1765 const char *buf, size_t count)
1766{
1767 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1768 int state;
1769 int ret;
1770
1771 ret = kstrtoint(buf, 0, &state);
1772 if (ret)
1773 return ret;
1774
1775 if (state != 0 && state != 1)
1776 return -EINVAL;
1777
1778 ret = set_fan_status(toshiba, state);
1779 if (ret)
1780 return ret;
1781
1782 return count;
1783}
1784
1785static ssize_t fan_show(struct device *dev,
1786 struct device_attribute *attr, char *buf)
1787{
1788 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1789 u32 value;
1790 int ret;
1791
1792 ret = get_fan_status(toshiba, &value);
1793 if (ret)
1794 return ret;
1795
1796 return sprintf(buf, "%d\n", value);
1797}
1798static DEVICE_ATTR_RW(fan);
1799
1800static ssize_t kbd_backlight_mode_store(struct device *dev,
1801 struct device_attribute *attr,
1802 const char *buf, size_t count)
1803{
1804 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1805 int mode;
1806 int ret;
1807
1808
1809 ret = kstrtoint(buf, 0, &mode);
1810 if (ret)
1811 return ret;
1812
1813 /* Check for supported modes depending on keyboard backlight type */
1814 if (toshiba->kbd_type == 1) {
1815 /* Type 1 supports SCI_KBD_MODE_FNZ and SCI_KBD_MODE_AUTO */
1816 if (mode != SCI_KBD_MODE_FNZ && mode != SCI_KBD_MODE_AUTO)
1817 return -EINVAL;
1818 } else if (toshiba->kbd_type == 2) {
1819 /* Type 2 doesn't support SCI_KBD_MODE_FNZ */
1820 if (mode != SCI_KBD_MODE_AUTO && mode != SCI_KBD_MODE_ON &&
1821 mode != SCI_KBD_MODE_OFF)
1822 return -EINVAL;
1823 }
1824
1825 /*
1826 * Set the Keyboard Backlight Mode where:
1827 * Auto - KBD backlight turns off automatically in given time
1828 * FN-Z - KBD backlight "toggles" when hotkey pressed
1829 * ON - KBD backlight is always on
1830 * OFF - KBD backlight is always off
1831 */
1832
1833 /* Only make a change if the actual mode has changed */
1834 if (toshiba->kbd_mode != mode) {
1835 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1836 int time = toshiba->kbd_time << HCI_MISC_SHIFT;
1837
1838 /* OR the "base time" to the actual method format */
1839 if (toshiba->kbd_type == 1) {
1840 /* Type 1 requires the current mode */
1841 time |= toshiba->kbd_mode;
1842 } else if (toshiba->kbd_type == 2) {
1843 /* Type 2 requires the desired mode */
1844 time |= mode;
1845 }
1846
1847 ret = toshiba_kbd_illum_status_set(toshiba, time);
1848 if (ret)
1849 return ret;
1850
1851 toshiba->kbd_mode = mode;
1852
1853 /*
1854 * Some laptop models with the second generation backlit
1855 * keyboard (type 2) do not generate the keyboard backlight
1856 * changed event (0x92), and thus, the driver will never update
1857 * the sysfs entries.
1858 *
1859 * The event is generated right when changing the keyboard
1860 * backlight mode and the *notify function will set the
1861 * kbd_event_generated to true.
1862 *
1863 * In case the event is not generated, schedule the keyboard
1864 * backlight work to update the sysfs entries and emulate the
1865 * event via genetlink.
1866 */
1867 if (toshiba->kbd_type == 2 &&
1868 !toshiba_acpi->kbd_event_generated)
1869 schedule_work(&kbd_bl_work);
1870 }
1871
1872 return count;
1873}
1874
1875static ssize_t kbd_backlight_mode_show(struct device *dev,
1876 struct device_attribute *attr,
1877 char *buf)
1878{
1879 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1880 u32 time;
1881
1882 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1883 return -EIO;
1884
1885 return sprintf(buf, "%i\n", time & SCI_KBD_MODE_MASK);
1886}
1887static DEVICE_ATTR_RW(kbd_backlight_mode);
1888
1889static ssize_t kbd_type_show(struct device *dev,
1890 struct device_attribute *attr, char *buf)
1891{
1892 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1893
1894 return sprintf(buf, "%d\n", toshiba->kbd_type);
1895}
1896static DEVICE_ATTR_RO(kbd_type);
1897
1898static ssize_t available_kbd_modes_show(struct device *dev,
1899 struct device_attribute *attr,
1900 char *buf)
1901{
1902 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1903
1904 if (toshiba->kbd_type == 1)
1905 return sprintf(buf, "0x%x 0x%x\n",
1906 SCI_KBD_MODE_FNZ, SCI_KBD_MODE_AUTO);
1907
1908 return sprintf(buf, "0x%x 0x%x 0x%x\n",
1909 SCI_KBD_MODE_AUTO, SCI_KBD_MODE_ON, SCI_KBD_MODE_OFF);
1910}
1911static DEVICE_ATTR_RO(available_kbd_modes);
1912
1913static ssize_t kbd_backlight_timeout_store(struct device *dev,
1914 struct device_attribute *attr,
1915 const char *buf, size_t count)
1916{
1917 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1918 int time;
1919 int ret;
1920
1921 ret = kstrtoint(buf, 0, &time);
1922 if (ret)
1923 return ret;
1924
1925 /* Check for supported values depending on kbd_type */
1926 if (toshiba->kbd_type == 1) {
1927 if (time < 0 || time > 60)
1928 return -EINVAL;
1929 } else if (toshiba->kbd_type == 2) {
1930 if (time < 1 || time > 60)
1931 return -EINVAL;
1932 }
1933
1934 /* Set the Keyboard Backlight Timeout */
1935
1936 /* Only make a change if the actual timeout has changed */
1937 if (toshiba->kbd_time != time) {
1938 /* Shift the time to "base time" (0x3c0000 == 60 seconds) */
1939 time = time << HCI_MISC_SHIFT;
1940 /* OR the "base time" to the actual method format */
1941 if (toshiba->kbd_type == 1)
1942 time |= SCI_KBD_MODE_FNZ;
1943 else if (toshiba->kbd_type == 2)
1944 time |= SCI_KBD_MODE_AUTO;
1945
1946 ret = toshiba_kbd_illum_status_set(toshiba, time);
1947 if (ret)
1948 return ret;
1949
1950 toshiba->kbd_time = time >> HCI_MISC_SHIFT;
1951 }
1952
1953 return count;
1954}
1955
1956static ssize_t kbd_backlight_timeout_show(struct device *dev,
1957 struct device_attribute *attr,
1958 char *buf)
1959{
1960 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1961 u32 time;
1962
1963 if (toshiba_kbd_illum_status_get(toshiba, &time) < 0)
1964 return -EIO;
1965
1966 return sprintf(buf, "%i\n", time >> HCI_MISC_SHIFT);
1967}
1968static DEVICE_ATTR_RW(kbd_backlight_timeout);
1969
1970static ssize_t touchpad_store(struct device *dev,
1971 struct device_attribute *attr,
1972 const char *buf, size_t count)
1973{
1974 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1975 int state;
1976 int ret;
1977
1978 /* Set the TouchPad on/off, 0 - Disable | 1 - Enable */
1979 ret = kstrtoint(buf, 0, &state);
1980 if (ret)
1981 return ret;
1982 if (state != 0 && state != 1)
1983 return -EINVAL;
1984
1985 ret = toshiba_touchpad_set(toshiba, state);
1986 if (ret)
1987 return ret;
1988
1989 return count;
1990}
1991
1992static ssize_t touchpad_show(struct device *dev,
1993 struct device_attribute *attr, char *buf)
1994{
1995 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
1996 u32 state;
1997 int ret;
1998
1999 ret = toshiba_touchpad_get(toshiba, &state);
2000 if (ret < 0)
2001 return ret;
2002
2003 return sprintf(buf, "%i\n", state);
2004}
2005static DEVICE_ATTR_RW(touchpad);
2006
2007static ssize_t usb_sleep_charge_show(struct device *dev,
2008 struct device_attribute *attr, char *buf)
2009{
2010 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2011 u32 mode;
2012 int ret;
2013
2014 ret = toshiba_usb_sleep_charge_get(toshiba, &mode);
2015 if (ret < 0)
2016 return ret;
2017
2018 return sprintf(buf, "%x\n", mode & SCI_USB_CHARGE_MODE_MASK);
2019}
2020
2021static ssize_t usb_sleep_charge_store(struct device *dev,
2022 struct device_attribute *attr,
2023 const char *buf, size_t count)
2024{
2025 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2026 int state;
2027 u32 mode;
2028 int ret;
2029
2030 ret = kstrtoint(buf, 0, &state);
2031 if (ret)
2032 return ret;
2033 /*
2034 * Check for supported values, where:
2035 * 0 - Disabled
2036 * 1 - Alternate (Non USB conformant devices that require more power)
2037 * 2 - Auto (USB conformant devices)
2038 * 3 - Typical
2039 */
2040 if (state != 0 && state != 1 && state != 2 && state != 3)
2041 return -EINVAL;
2042
2043 /* Set the USB charging mode to internal value */
2044 mode = toshiba->usbsc_mode_base;
2045 if (state == 0)
2046 mode |= SCI_USB_CHARGE_DISABLED;
2047 else if (state == 1)
2048 mode |= SCI_USB_CHARGE_ALTERNATE;
2049 else if (state == 2)
2050 mode |= SCI_USB_CHARGE_AUTO;
2051 else if (state == 3)
2052 mode |= SCI_USB_CHARGE_TYPICAL;
2053
2054 ret = toshiba_usb_sleep_charge_set(toshiba, mode);
2055 if (ret)
2056 return ret;
2057
2058 return count;
2059}
2060static DEVICE_ATTR_RW(usb_sleep_charge);
2061
2062static ssize_t sleep_functions_on_battery_show(struct device *dev,
2063 struct device_attribute *attr,
2064 char *buf)
2065{
2066 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2067 int bat_lvl, status;
2068 u32 state;
2069 int ret;
2070 int tmp;
2071
2072 ret = toshiba_sleep_functions_status_get(toshiba, &state);
2073 if (ret < 0)
2074 return ret;
2075
2076 /* Determine the status: 0x4 - Enabled | 0x1 - Disabled */
2077 tmp = state & SCI_USB_CHARGE_BAT_MASK;
2078 status = (tmp == 0x4) ? 1 : 0;
2079 /* Determine the battery level set */
2080 bat_lvl = state >> HCI_MISC_SHIFT;
2081
2082 return sprintf(buf, "%d %d\n", status, bat_lvl);
2083}
2084
2085static ssize_t sleep_functions_on_battery_store(struct device *dev,
2086 struct device_attribute *attr,
2087 const char *buf, size_t count)
2088{
2089 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2090 u32 status;
2091 int value;
2092 int ret;
2093 int tmp;
2094
2095 ret = kstrtoint(buf, 0, &value);
2096 if (ret)
2097 return ret;
2098
2099 /*
2100 * Set the status of the function:
2101 * 0 - Disabled
2102 * 1-100 - Enabled
2103 */
2104 if (value < 0 || value > 100)
2105 return -EINVAL;
2106
2107 if (value == 0) {
2108 tmp = toshiba->usbsc_bat_level << HCI_MISC_SHIFT;
2109 status = tmp | SCI_USB_CHARGE_BAT_LVL_OFF;
2110 } else {
2111 tmp = value << HCI_MISC_SHIFT;
2112 status = tmp | SCI_USB_CHARGE_BAT_LVL_ON;
2113 }
2114 ret = toshiba_sleep_functions_status_set(toshiba, status);
2115 if (ret < 0)
2116 return ret;
2117
2118 toshiba->usbsc_bat_level = status >> HCI_MISC_SHIFT;
2119
2120 return count;
2121}
2122static DEVICE_ATTR_RW(sleep_functions_on_battery);
2123
2124static ssize_t usb_rapid_charge_show(struct device *dev,
2125 struct device_attribute *attr, char *buf)
2126{
2127 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2128 u32 state;
2129 int ret;
2130
2131 ret = toshiba_usb_rapid_charge_get(toshiba, &state);
2132 if (ret < 0)
2133 return ret;
2134
2135 return sprintf(buf, "%d\n", state);
2136}
2137
2138static ssize_t usb_rapid_charge_store(struct device *dev,
2139 struct device_attribute *attr,
2140 const char *buf, size_t count)
2141{
2142 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2143 int state;
2144 int ret;
2145
2146 ret = kstrtoint(buf, 0, &state);
2147 if (ret)
2148 return ret;
2149 if (state != 0 && state != 1)
2150 return -EINVAL;
2151
2152 ret = toshiba_usb_rapid_charge_set(toshiba, state);
2153 if (ret)
2154 return ret;
2155
2156 return count;
2157}
2158static DEVICE_ATTR_RW(usb_rapid_charge);
2159
2160static ssize_t usb_sleep_music_show(struct device *dev,
2161 struct device_attribute *attr, char *buf)
2162{
2163 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2164 u32 state;
2165 int ret;
2166
2167 ret = toshiba_usb_sleep_music_get(toshiba, &state);
2168 if (ret < 0)
2169 return ret;
2170
2171 return sprintf(buf, "%d\n", state);
2172}
2173
2174static ssize_t usb_sleep_music_store(struct device *dev,
2175 struct device_attribute *attr,
2176 const char *buf, size_t count)
2177{
2178 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2179 int state;
2180 int ret;
2181
2182 ret = kstrtoint(buf, 0, &state);
2183 if (ret)
2184 return ret;
2185 if (state != 0 && state != 1)
2186 return -EINVAL;
2187
2188 ret = toshiba_usb_sleep_music_set(toshiba, state);
2189 if (ret)
2190 return ret;
2191
2192 return count;
2193}
2194static DEVICE_ATTR_RW(usb_sleep_music);
2195
2196static ssize_t kbd_function_keys_show(struct device *dev,
2197 struct device_attribute *attr, char *buf)
2198{
2199 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2200 int mode;
2201 int ret;
2202
2203 ret = toshiba_function_keys_get(toshiba, &mode);
2204 if (ret < 0)
2205 return ret;
2206
2207 return sprintf(buf, "%d\n", mode);
2208}
2209
2210static ssize_t kbd_function_keys_store(struct device *dev,
2211 struct device_attribute *attr,
2212 const char *buf, size_t count)
2213{
2214 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2215 int mode;
2216 int ret;
2217
2218 ret = kstrtoint(buf, 0, &mode);
2219 if (ret)
2220 return ret;
2221 /*
2222 * Check for the function keys mode where:
2223 * 0 - Normal operation (F{1-12} as usual and hotkeys via FN-F{1-12})
2224 * 1 - Special functions (Opposite of the above setting)
2225 */
2226 if (mode != 0 && mode != 1)
2227 return -EINVAL;
2228
2229 ret = toshiba_function_keys_set(toshiba, mode);
2230 if (ret)
2231 return ret;
2232
2233 pr_info("Reboot for changes to KBD Function Keys to take effect");
2234
2235 return count;
2236}
2237static DEVICE_ATTR_RW(kbd_function_keys);
2238
2239static ssize_t panel_power_on_show(struct device *dev,
2240 struct device_attribute *attr, char *buf)
2241{
2242 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2243 u32 state;
2244 int ret;
2245
2246 ret = toshiba_panel_power_on_get(toshiba, &state);
2247 if (ret < 0)
2248 return ret;
2249
2250 return sprintf(buf, "%d\n", state);
2251}
2252
2253static ssize_t panel_power_on_store(struct device *dev,
2254 struct device_attribute *attr,
2255 const char *buf, size_t count)
2256{
2257 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2258 int state;
2259 int ret;
2260
2261 ret = kstrtoint(buf, 0, &state);
2262 if (ret)
2263 return ret;
2264 if (state != 0 && state != 1)
2265 return -EINVAL;
2266
2267 ret = toshiba_panel_power_on_set(toshiba, state);
2268 if (ret)
2269 return ret;
2270
2271 pr_info("Reboot for changes to Panel Power ON to take effect");
2272
2273 return count;
2274}
2275static DEVICE_ATTR_RW(panel_power_on);
2276
2277static ssize_t usb_three_show(struct device *dev,
2278 struct device_attribute *attr, char *buf)
2279{
2280 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2281 u32 state;
2282 int ret;
2283
2284 ret = toshiba_usb_three_get(toshiba, &state);
2285 if (ret < 0)
2286 return ret;
2287
2288 return sprintf(buf, "%d\n", state);
2289}
2290
2291static ssize_t usb_three_store(struct device *dev,
2292 struct device_attribute *attr,
2293 const char *buf, size_t count)
2294{
2295 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2296 int state;
2297 int ret;
2298
2299 ret = kstrtoint(buf, 0, &state);
2300 if (ret)
2301 return ret;
2302 /*
2303 * Check for USB 3 mode where:
2304 * 0 - Disabled (Acts like a USB 2 port, saving power)
2305 * 1 - Enabled
2306 */
2307 if (state != 0 && state != 1)
2308 return -EINVAL;
2309
2310 ret = toshiba_usb_three_set(toshiba, state);
2311 if (ret)
2312 return ret;
2313
2314 pr_info("Reboot for changes to USB 3 to take effect");
2315
2316 return count;
2317}
2318static DEVICE_ATTR_RW(usb_three);
2319
2320static ssize_t cooling_method_show(struct device *dev,
2321 struct device_attribute *attr, char *buf)
2322{
2323 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2324 int state;
2325 int ret;
2326
2327 ret = toshiba_cooling_method_get(toshiba, &state);
2328 if (ret < 0)
2329 return ret;
2330
2331 return sprintf(buf, "%d %d\n", state, toshiba->max_cooling_method);
2332}
2333
2334static ssize_t cooling_method_store(struct device *dev,
2335 struct device_attribute *attr,
2336 const char *buf, size_t count)
2337{
2338 struct toshiba_acpi_dev *toshiba = dev_get_drvdata(dev);
2339 int state;
2340 int ret;
2341
2342 ret = kstrtoint(buf, 0, &state);
2343 if (ret)
2344 return ret;
2345
2346 /*
2347 * Check for supported values
2348 * Depending on the laptop model, some only support these two:
2349 * 0 - Maximum Performance
2350 * 1 - Battery Optimized
2351 *
2352 * While some others support all three methods:
2353 * 0 - Maximum Performance
2354 * 1 - Performance
2355 * 2 - Battery Optimized
2356 */
2357 if (state < 0 || state > toshiba->max_cooling_method)
2358 return -EINVAL;
2359
2360 ret = toshiba_cooling_method_set(toshiba, state);
2361 if (ret)
2362 return ret;
2363
2364 return count;
2365}
2366static DEVICE_ATTR_RW(cooling_method);
2367
2368static struct attribute *toshiba_attributes[] = {
2369 &dev_attr_version.attr,
2370 &dev_attr_fan.attr,
2371 &dev_attr_kbd_backlight_mode.attr,
2372 &dev_attr_kbd_type.attr,
2373 &dev_attr_available_kbd_modes.attr,
2374 &dev_attr_kbd_backlight_timeout.attr,
2375 &dev_attr_touchpad.attr,
2376 &dev_attr_usb_sleep_charge.attr,
2377 &dev_attr_sleep_functions_on_battery.attr,
2378 &dev_attr_usb_rapid_charge.attr,
2379 &dev_attr_usb_sleep_music.attr,
2380 &dev_attr_kbd_function_keys.attr,
2381 &dev_attr_panel_power_on.attr,
2382 &dev_attr_usb_three.attr,
2383 &dev_attr_cooling_method.attr,
2384 NULL,
2385};
2386
2387static umode_t toshiba_sysfs_is_visible(struct kobject *kobj,
2388 struct attribute *attr, int idx)
2389{
2390 struct device *dev = container_of(kobj, struct device, kobj);
2391 struct toshiba_acpi_dev *drv = dev_get_drvdata(dev);
2392 bool exists = true;
2393
2394 if (attr == &dev_attr_fan.attr)
2395 exists = (drv->fan_supported) ? true : false;
2396 else if (attr == &dev_attr_kbd_backlight_mode.attr)
2397 exists = (drv->kbd_illum_supported) ? true : false;
2398 else if (attr == &dev_attr_kbd_backlight_timeout.attr)
2399 exists = (drv->kbd_mode == SCI_KBD_MODE_AUTO) ? true : false;
2400 else if (attr == &dev_attr_touchpad.attr)
2401 exists = (drv->touchpad_supported) ? true : false;
2402 else if (attr == &dev_attr_usb_sleep_charge.attr)
2403 exists = (drv->usb_sleep_charge_supported) ? true : false;
2404 else if (attr == &dev_attr_sleep_functions_on_battery.attr)
2405 exists = (drv->usb_sleep_charge_supported) ? true : false;
2406 else if (attr == &dev_attr_usb_rapid_charge.attr)
2407 exists = (drv->usb_rapid_charge_supported) ? true : false;
2408 else if (attr == &dev_attr_usb_sleep_music.attr)
2409 exists = (drv->usb_sleep_music_supported) ? true : false;
2410 else if (attr == &dev_attr_kbd_function_keys.attr)
2411 exists = (drv->kbd_function_keys_supported) ? true : false;
2412 else if (attr == &dev_attr_panel_power_on.attr)
2413 exists = (drv->panel_power_on_supported) ? true : false;
2414 else if (attr == &dev_attr_usb_three.attr)
2415 exists = (drv->usb_three_supported) ? true : false;
2416 else if (attr == &dev_attr_cooling_method.attr)
2417 exists = (drv->cooling_method_supported) ? true : false;
2418
2419 return exists ? attr->mode : 0;
2420}
2421
2422static const struct attribute_group toshiba_attr_group = {
2423 .is_visible = toshiba_sysfs_is_visible,
2424 .attrs = toshiba_attributes,
2425};
2426
2427static void toshiba_acpi_kbd_bl_work(struct work_struct *work)
2428{
2429 struct acpi_device *acpi_dev = toshiba_acpi->acpi_dev;
2430
2431 /* Update the sysfs entries */
2432 if (sysfs_update_group(&acpi_dev->dev.kobj,
2433 &toshiba_attr_group))
2434 pr_err("Unable to update sysfs entries\n");
2435
2436 /* Emulate the keyboard backlight event */
2437 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
2438 dev_name(&acpi_dev->dev),
2439 0x92, 0);
2440}
2441
2442/*
2443 * IIO device
2444 */
2445
2446enum toshiba_iio_accel_chan {
2447 AXIS_X,
2448 AXIS_Y,
2449 AXIS_Z
2450};
2451
2452static int toshiba_iio_accel_get_axis(enum toshiba_iio_accel_chan chan)
2453{
2454 u32 xyval, zval;
2455 int ret;
2456
2457 ret = toshiba_accelerometer_get(toshiba_acpi, &xyval, &zval);
2458 if (ret < 0)
2459 return ret;
2460
2461 switch (chan) {
2462 case AXIS_X:
2463 return xyval & HCI_ACCEL_DIRECTION_MASK ?
2464 -(xyval & HCI_ACCEL_MASK) : xyval & HCI_ACCEL_MASK;
2465 case AXIS_Y:
2466 return (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_DIRECTION_MASK ?
2467 -((xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK) :
2468 (xyval >> HCI_MISC_SHIFT) & HCI_ACCEL_MASK;
2469 case AXIS_Z:
2470 return zval & HCI_ACCEL_DIRECTION_MASK ?
2471 -(zval & HCI_ACCEL_MASK) : zval & HCI_ACCEL_MASK;
2472 }
2473
2474 return ret;
2475}
2476
2477static int toshiba_iio_accel_read_raw(struct iio_dev *indio_dev,
2478 struct iio_chan_spec const *chan,
2479 int *val, int *val2, long mask)
2480{
2481 int ret;
2482
2483 switch (mask) {
2484 case IIO_CHAN_INFO_RAW:
2485 ret = toshiba_iio_accel_get_axis(chan->channel);
2486 if (ret == -EIO || ret == -ENODEV)
2487 return ret;
2488
2489 *val = ret;
2490
2491 return IIO_VAL_INT;
2492 }
2493
2494 return -EINVAL;
2495}
2496
2497#define TOSHIBA_IIO_ACCEL_CHANNEL(axis, chan) { \
2498 .type = IIO_ACCEL, \
2499 .modified = 1, \
2500 .channel = chan, \
2501 .channel2 = IIO_MOD_##axis, \
2502 .output = 1, \
2503 .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
2504}
2505
2506static const struct iio_chan_spec toshiba_iio_accel_channels[] = {
2507 TOSHIBA_IIO_ACCEL_CHANNEL(X, AXIS_X),
2508 TOSHIBA_IIO_ACCEL_CHANNEL(Y, AXIS_Y),
2509 TOSHIBA_IIO_ACCEL_CHANNEL(Z, AXIS_Z),
2510};
2511
2512static const struct iio_info toshiba_iio_accel_info = {
2513 .read_raw = &toshiba_iio_accel_read_raw,
2514};
2515
2516/*
2517 * Misc device
2518 */
2519static int toshiba_acpi_smm_bridge(SMMRegisters *regs)
2520{
2521 u32 in[TCI_WORDS] = { regs->eax, regs->ebx, regs->ecx,
2522 regs->edx, regs->esi, regs->edi };
2523 u32 out[TCI_WORDS];
2524 acpi_status status;
2525
2526 status = tci_raw(toshiba_acpi, in, out);
2527 if (ACPI_FAILURE(status)) {
2528 pr_err("ACPI call to query SMM registers failed\n");
2529 return -EIO;
2530 }
2531
2532 /* Fillout the SMM struct with the TCI call results */
2533 regs->eax = out[0];
2534 regs->ebx = out[1];
2535 regs->ecx = out[2];
2536 regs->edx = out[3];
2537 regs->esi = out[4];
2538 regs->edi = out[5];
2539
2540 return 0;
2541}
2542
2543static long toshiba_acpi_ioctl(struct file *fp, unsigned int cmd,
2544 unsigned long arg)
2545{
2546 SMMRegisters __user *argp = (SMMRegisters __user *)arg;
2547 SMMRegisters regs;
2548 int ret;
2549
2550 if (!argp)
2551 return -EINVAL;
2552
2553 switch (cmd) {
2554 case TOSH_SMM:
2555 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2556 return -EFAULT;
2557 ret = toshiba_acpi_smm_bridge(®s);
2558 if (ret)
2559 return ret;
2560 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2561 return -EFAULT;
2562 break;
2563 case TOSHIBA_ACPI_SCI:
2564 if (copy_from_user(®s, argp, sizeof(SMMRegisters)))
2565 return -EFAULT;
2566 /* Ensure we are being called with a SCI_{GET, SET} register */
2567 if (regs.eax != SCI_GET && regs.eax != SCI_SET)
2568 return -EINVAL;
2569 if (!sci_open(toshiba_acpi))
2570 return -EIO;
2571 ret = toshiba_acpi_smm_bridge(®s);
2572 sci_close(toshiba_acpi);
2573 if (ret)
2574 return ret;
2575 if (copy_to_user(argp, ®s, sizeof(SMMRegisters)))
2576 return -EFAULT;
2577 break;
2578 default:
2579 return -EINVAL;
2580 }
2581
2582 return 0;
2583}
2584
2585static const struct file_operations toshiba_acpi_fops = {
2586 .owner = THIS_MODULE,
2587 .unlocked_ioctl = toshiba_acpi_ioctl,
2588 .llseek = noop_llseek,
2589};
2590
2591/*
2592 * WWAN RFKill handlers
2593 */
2594static int toshiba_acpi_wwan_set_block(void *data, bool blocked)
2595{
2596 struct toshiba_acpi_dev *dev = data;
2597 int ret;
2598
2599 ret = toshiba_wireless_status(dev);
2600 if (ret)
2601 return ret;
2602
2603 if (!dev->killswitch)
2604 return 0;
2605
2606 return toshiba_wwan_set(dev, !blocked);
2607}
2608
2609static void toshiba_acpi_wwan_poll(struct rfkill *rfkill, void *data)
2610{
2611 struct toshiba_acpi_dev *dev = data;
2612
2613 if (toshiba_wireless_status(dev))
2614 return;
2615
2616 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2617}
2618
2619static const struct rfkill_ops wwan_rfk_ops = {
2620 .set_block = toshiba_acpi_wwan_set_block,
2621 .poll = toshiba_acpi_wwan_poll,
2622};
2623
2624static int toshiba_acpi_setup_wwan_rfkill(struct toshiba_acpi_dev *dev)
2625{
2626 int ret = toshiba_wireless_status(dev);
2627
2628 if (ret)
2629 return ret;
2630
2631 dev->wwan_rfk = rfkill_alloc("Toshiba WWAN",
2632 &dev->acpi_dev->dev,
2633 RFKILL_TYPE_WWAN,
2634 &wwan_rfk_ops,
2635 dev);
2636 if (!dev->wwan_rfk) {
2637 pr_err("Unable to allocate WWAN rfkill device\n");
2638 return -ENOMEM;
2639 }
2640
2641 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
2642
2643 ret = rfkill_register(dev->wwan_rfk);
2644 if (ret) {
2645 pr_err("Unable to register WWAN rfkill device\n");
2646 rfkill_destroy(dev->wwan_rfk);
2647 }
2648
2649 return ret;
2650}
2651
2652/*
2653 * Hotkeys
2654 */
2655static int toshiba_acpi_enable_hotkeys(struct toshiba_acpi_dev *dev)
2656{
2657 acpi_status status;
2658 u32 result;
2659
2660 status = acpi_evaluate_object(dev->acpi_dev->handle,
2661 "ENAB", NULL, NULL);
2662 if (ACPI_FAILURE(status))
2663 return -ENODEV;
2664
2665 /*
2666 * Enable the "Special Functions" mode only if they are
2667 * supported and if they are activated.
2668 */
2669 if (dev->kbd_function_keys_supported && dev->special_functions)
2670 result = hci_write(dev, HCI_HOTKEY_EVENT,
2671 HCI_HOTKEY_SPECIAL_FUNCTIONS);
2672 else
2673 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_ENABLE);
2674
2675 if (result == TOS_FAILURE)
2676 return -EIO;
2677 else if (result == TOS_NOT_SUPPORTED)
2678 return -ENODEV;
2679
2680 return 0;
2681}
2682
2683static bool toshiba_acpi_i8042_filter(unsigned char data, unsigned char str,
2684 struct serio *port)
2685{
2686 if (str & I8042_STR_AUXDATA)
2687 return false;
2688
2689 if (unlikely(data == 0xe0))
2690 return false;
2691
2692 if ((data & 0x7f) == TOS1900_FN_SCAN) {
2693 schedule_work(&toshiba_acpi->hotkey_work);
2694 return true;
2695 }
2696
2697 return false;
2698}
2699
2700static void toshiba_acpi_hotkey_work(struct work_struct *work)
2701{
2702 acpi_handle ec_handle = ec_get_handle();
2703 acpi_status status;
2704
2705 if (!ec_handle)
2706 return;
2707
2708 status = acpi_evaluate_object(ec_handle, "NTFY", NULL, NULL);
2709 if (ACPI_FAILURE(status))
2710 pr_err("ACPI NTFY method execution failed\n");
2711}
2712
2713/*
2714 * Returns hotkey scancode, or < 0 on failure.
2715 */
2716static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
2717{
2718 unsigned long long value;
2719 acpi_status status;
2720
2721 status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
2722 NULL, &value);
2723 if (ACPI_FAILURE(status)) {
2724 pr_err("ACPI INFO method execution failed\n");
2725 return -EIO;
2726 }
2727
2728 return value;
2729}
2730
2731static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
2732 int scancode)
2733{
2734 if (scancode == 0x100)
2735 return;
2736
2737 /* Act on key press; ignore key release */
2738 if (scancode & 0x80)
2739 return;
2740
2741 if (!sparse_keymap_report_event(dev->hotkey_dev, scancode, 1, true))
2742 pr_info("Unknown key %x\n", scancode);
2743}
2744
2745static void toshiba_acpi_process_hotkeys(struct toshiba_acpi_dev *dev)
2746{
2747 if (dev->info_supported) {
2748 int scancode = toshiba_acpi_query_hotkey(dev);
2749
2750 if (scancode < 0) {
2751 pr_err("Failed to query hotkey event\n");
2752 } else if (scancode != 0) {
2753 toshiba_acpi_report_hotkey(dev, scancode);
2754 dev->key_event_valid = 1;
2755 dev->last_key_event = scancode;
2756 }
2757 } else if (dev->system_event_supported) {
2758 u32 result;
2759 u32 value;
2760 int retries = 3;
2761
2762 do {
2763 result = hci_read(dev, HCI_SYSTEM_EVENT, &value);
2764 switch (result) {
2765 case TOS_SUCCESS:
2766 toshiba_acpi_report_hotkey(dev, (int)value);
2767 dev->key_event_valid = 1;
2768 dev->last_key_event = value;
2769 break;
2770 case TOS_NOT_SUPPORTED:
2771 /*
2772 * This is a workaround for an unresolved
2773 * issue on some machines where system events
2774 * sporadically become disabled.
2775 */
2776 result = hci_write(dev, HCI_SYSTEM_EVENT, 1);
2777 if (result == TOS_SUCCESS)
2778 pr_notice("Re-enabled hotkeys\n");
2779 /* Fall through */
2780 default:
2781 retries--;
2782 break;
2783 }
2784 } while (retries && result != TOS_FIFO_EMPTY);
2785 }
2786}
2787
2788static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
2789{
2790 const struct key_entry *keymap = toshiba_acpi_keymap;
2791 acpi_handle ec_handle;
2792 int error;
2793
2794 if (disable_hotkeys) {
2795 pr_info("Hotkeys disabled by module parameter\n");
2796 return 0;
2797 }
2798
2799 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID)) {
2800 pr_info("WMI event detected, hotkeys will not be monitored\n");
2801 return 0;
2802 }
2803
2804 error = toshiba_acpi_enable_hotkeys(dev);
2805 if (error)
2806 return error;
2807
2808 if (toshiba_hotkey_event_type_get(dev, &dev->hotkey_event_type))
2809 pr_notice("Unable to query Hotkey Event Type\n");
2810
2811 dev->hotkey_dev = input_allocate_device();
2812 if (!dev->hotkey_dev)
2813 return -ENOMEM;
2814
2815 dev->hotkey_dev->name = "Toshiba input device";
2816 dev->hotkey_dev->phys = "toshiba_acpi/input0";
2817 dev->hotkey_dev->id.bustype = BUS_HOST;
2818
2819 if (dev->hotkey_event_type == HCI_SYSTEM_TYPE1 ||
2820 !dev->kbd_function_keys_supported)
2821 keymap = toshiba_acpi_keymap;
2822 else if (dev->hotkey_event_type == HCI_SYSTEM_TYPE2 ||
2823 dev->kbd_function_keys_supported)
2824 keymap = toshiba_acpi_alt_keymap;
2825 else
2826 pr_info("Unknown event type received %x\n",
2827 dev->hotkey_event_type);
2828 error = sparse_keymap_setup(dev->hotkey_dev, keymap, NULL);
2829 if (error)
2830 goto err_free_dev;
2831
2832 /*
2833 * For some machines the SCI responsible for providing hotkey
2834 * notification doesn't fire. We can trigger the notification
2835 * whenever the Fn key is pressed using the NTFY method, if
2836 * supported, so if it's present set up an i8042 key filter
2837 * for this purpose.
2838 */
2839 ec_handle = ec_get_handle();
2840 if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
2841 INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
2842
2843 error = i8042_install_filter(toshiba_acpi_i8042_filter);
2844 if (error) {
2845 pr_err("Error installing key filter\n");
2846 goto err_free_dev;
2847 }
2848
2849 dev->ntfy_supported = 1;
2850 }
2851
2852 /*
2853 * Determine hotkey query interface. Prefer using the INFO
2854 * method when it is available.
2855 */
2856 if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
2857 dev->info_supported = 1;
2858 else if (hci_write(dev, HCI_SYSTEM_EVENT, 1) == TOS_SUCCESS)
2859 dev->system_event_supported = 1;
2860
2861 if (!dev->info_supported && !dev->system_event_supported) {
2862 pr_warn("No hotkey query interface found\n");
2863 goto err_remove_filter;
2864 }
2865
2866 error = input_register_device(dev->hotkey_dev);
2867 if (error) {
2868 pr_info("Unable to register input device\n");
2869 goto err_remove_filter;
2870 }
2871
2872 return 0;
2873
2874 err_remove_filter:
2875 if (dev->ntfy_supported)
2876 i8042_remove_filter(toshiba_acpi_i8042_filter);
2877 err_free_dev:
2878 input_free_device(dev->hotkey_dev);
2879 dev->hotkey_dev = NULL;
2880 return error;
2881}
2882
2883static int toshiba_acpi_setup_backlight(struct toshiba_acpi_dev *dev)
2884{
2885 struct backlight_properties props;
2886 int brightness;
2887 int ret;
2888
2889 /*
2890 * Some machines don't support the backlight methods at all, and
2891 * others support it read-only. Either of these is pretty useless,
2892 * so only register the backlight device if the backlight method
2893 * supports both reads and writes.
2894 */
2895 brightness = __get_lcd_brightness(dev);
2896 if (brightness < 0)
2897 return 0;
2898 /*
2899 * If transflective backlight is supported and the brightness is zero
2900 * (lowest brightness level), the set_lcd_brightness function will
2901 * activate the transflective backlight, making the LCD appear to be
2902 * turned off, simply increment the brightness level to avoid that.
2903 */
2904 if (dev->tr_backlight_supported && brightness == 0)
2905 brightness++;
2906 ret = set_lcd_brightness(dev, brightness);
2907 if (ret) {
2908 pr_debug("Backlight method is read-only, disabling backlight support\n");
2909 return 0;
2910 }
2911
2912 /*
2913 * Tell acpi-video-detect code to prefer vendor backlight on all
2914 * systems with transflective backlight and on dmi matched systems.
2915 */
2916 if (dev->tr_backlight_supported ||
2917 dmi_check_system(toshiba_vendor_backlight_dmi))
2918 acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);
2919
2920 if (acpi_video_get_backlight_type() != acpi_backlight_vendor)
2921 return 0;
2922
2923 memset(&props, 0, sizeof(props));
2924 props.type = BACKLIGHT_PLATFORM;
2925 props.max_brightness = HCI_LCD_BRIGHTNESS_LEVELS - 1;
2926
2927 /* Adding an extra level and having 0 change to transflective mode */
2928 if (dev->tr_backlight_supported)
2929 props.max_brightness++;
2930
2931 dev->backlight_dev = backlight_device_register("toshiba",
2932 &dev->acpi_dev->dev,
2933 dev,
2934 &toshiba_backlight_data,
2935 &props);
2936 if (IS_ERR(dev->backlight_dev)) {
2937 ret = PTR_ERR(dev->backlight_dev);
2938 pr_err("Could not register toshiba backlight device\n");
2939 dev->backlight_dev = NULL;
2940 return ret;
2941 }
2942
2943 dev->backlight_dev->props.brightness = brightness;
2944 return 0;
2945}
2946
2947static void print_supported_features(struct toshiba_acpi_dev *dev)
2948{
2949 pr_info("Supported laptop features:");
2950
2951 if (dev->hotkey_dev)
2952 pr_cont(" hotkeys");
2953 if (dev->backlight_dev)
2954 pr_cont(" backlight");
2955 if (dev->video_supported)
2956 pr_cont(" video-out");
2957 if (dev->fan_supported)
2958 pr_cont(" fan");
2959 if (dev->tr_backlight_supported)
2960 pr_cont(" transflective-backlight");
2961 if (dev->illumination_supported)
2962 pr_cont(" illumination");
2963 if (dev->kbd_illum_supported)
2964 pr_cont(" keyboard-backlight");
2965 if (dev->touchpad_supported)
2966 pr_cont(" touchpad");
2967 if (dev->eco_supported)
2968 pr_cont(" eco-led");
2969 if (dev->accelerometer_supported)
2970 pr_cont(" accelerometer-axes");
2971 if (dev->usb_sleep_charge_supported)
2972 pr_cont(" usb-sleep-charge");
2973 if (dev->usb_rapid_charge_supported)
2974 pr_cont(" usb-rapid-charge");
2975 if (dev->usb_sleep_music_supported)
2976 pr_cont(" usb-sleep-music");
2977 if (dev->kbd_function_keys_supported)
2978 pr_cont(" special-function-keys");
2979 if (dev->panel_power_on_supported)
2980 pr_cont(" panel-power-on");
2981 if (dev->usb_three_supported)
2982 pr_cont(" usb3");
2983 if (dev->wwan_supported)
2984 pr_cont(" wwan");
2985 if (dev->cooling_method_supported)
2986 pr_cont(" cooling-method");
2987
2988 pr_cont("\n");
2989}
2990
2991static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
2992{
2993 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
2994
2995 misc_deregister(&dev->miscdev);
2996
2997 remove_toshiba_proc_entries(dev);
2998
2999 if (dev->accelerometer_supported && dev->indio_dev) {
3000 iio_device_unregister(dev->indio_dev);
3001 iio_device_free(dev->indio_dev);
3002 }
3003
3004 if (dev->sysfs_created)
3005 sysfs_remove_group(&dev->acpi_dev->dev.kobj,
3006 &toshiba_attr_group);
3007
3008 if (dev->ntfy_supported) {
3009 i8042_remove_filter(toshiba_acpi_i8042_filter);
3010 cancel_work_sync(&dev->hotkey_work);
3011 }
3012
3013 if (dev->hotkey_dev)
3014 input_unregister_device(dev->hotkey_dev);
3015
3016 backlight_device_unregister(dev->backlight_dev);
3017
3018 if (dev->illumination_led_registered)
3019 led_classdev_unregister(&dev->led_dev);
3020
3021 if (dev->kbd_led_registered)
3022 led_classdev_unregister(&dev->kbd_led);
3023
3024 if (dev->eco_led_registered)
3025 led_classdev_unregister(&dev->eco_led);
3026
3027 if (dev->wwan_rfk) {
3028 rfkill_unregister(dev->wwan_rfk);
3029 rfkill_destroy(dev->wwan_rfk);
3030 }
3031
3032 if (toshiba_acpi)
3033 toshiba_acpi = NULL;
3034
3035 kfree(dev);
3036
3037 return 0;
3038}
3039
3040static const char *find_hci_method(acpi_handle handle)
3041{
3042 if (acpi_has_method(handle, "GHCI"))
3043 return "GHCI";
3044
3045 if (acpi_has_method(handle, "SPFC"))
3046 return "SPFC";
3047
3048 return NULL;
3049}
3050
3051static int toshiba_acpi_add(struct acpi_device *acpi_dev)
3052{
3053 struct toshiba_acpi_dev *dev;
3054 const char *hci_method;
3055 u32 dummy;
3056 int ret = 0;
3057
3058 if (toshiba_acpi)
3059 return -EBUSY;
3060
3061 pr_info("Toshiba Laptop ACPI Extras version %s\n",
3062 TOSHIBA_ACPI_VERSION);
3063
3064 hci_method = find_hci_method(acpi_dev->handle);
3065 if (!hci_method) {
3066 pr_err("HCI interface not found\n");
3067 return -ENODEV;
3068 }
3069
3070 dev = kzalloc(sizeof(*dev), GFP_KERNEL);
3071 if (!dev)
3072 return -ENOMEM;
3073 dev->acpi_dev = acpi_dev;
3074 dev->method_hci = hci_method;
3075 dev->miscdev.minor = MISC_DYNAMIC_MINOR;
3076 dev->miscdev.name = "toshiba_acpi";
3077 dev->miscdev.fops = &toshiba_acpi_fops;
3078
3079 ret = misc_register(&dev->miscdev);
3080 if (ret) {
3081 pr_err("Failed to register miscdevice\n");
3082 kfree(dev);
3083 return ret;
3084 }
3085
3086 acpi_dev->driver_data = dev;
3087 dev_set_drvdata(&acpi_dev->dev, dev);
3088
3089 /* Query the BIOS for supported features */
3090
3091 /*
3092 * The "Special Functions" are always supported by the laptops
3093 * with the new keyboard layout, query for its presence to help
3094 * determine the keymap layout to use.
3095 */
3096 ret = toshiba_function_keys_get(dev, &dev->special_functions);
3097 dev->kbd_function_keys_supported = !ret;
3098
3099 dev->hotkey_event_type = 0;
3100 if (toshiba_acpi_setup_keyboard(dev))
3101 pr_info("Unable to activate hotkeys\n");
3102
3103 /* Determine whether or not BIOS supports transflective backlight */
3104 ret = get_tr_backlight_status(dev, &dummy);
3105 dev->tr_backlight_supported = !ret;
3106
3107 ret = toshiba_acpi_setup_backlight(dev);
3108 if (ret)
3109 goto error;
3110
3111 toshiba_illumination_available(dev);
3112 if (dev->illumination_supported) {
3113 dev->led_dev.name = "toshiba::illumination";
3114 dev->led_dev.max_brightness = 1;
3115 dev->led_dev.brightness_set = toshiba_illumination_set;
3116 dev->led_dev.brightness_get = toshiba_illumination_get;
3117 if (!led_classdev_register(&acpi_dev->dev, &dev->led_dev))
3118 dev->illumination_led_registered = true;
3119 }
3120
3121 toshiba_eco_mode_available(dev);
3122 if (dev->eco_supported) {
3123 dev->eco_led.name = "toshiba::eco_mode";
3124 dev->eco_led.max_brightness = 1;
3125 dev->eco_led.brightness_set = toshiba_eco_mode_set_status;
3126 dev->eco_led.brightness_get = toshiba_eco_mode_get_status;
3127 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->eco_led))
3128 dev->eco_led_registered = true;
3129 }
3130
3131 toshiba_kbd_illum_available(dev);
3132 /*
3133 * Only register the LED if KBD illumination is supported
3134 * and the keyboard backlight operation mode is set to FN-Z
3135 */
3136 if (dev->kbd_illum_supported && dev->kbd_mode == SCI_KBD_MODE_FNZ) {
3137 dev->kbd_led.name = "toshiba::kbd_backlight";
3138 dev->kbd_led.max_brightness = 1;
3139 dev->kbd_led.brightness_set = toshiba_kbd_backlight_set;
3140 dev->kbd_led.brightness_get = toshiba_kbd_backlight_get;
3141 if (!led_classdev_register(&dev->acpi_dev->dev, &dev->kbd_led))
3142 dev->kbd_led_registered = true;
3143 }
3144
3145 ret = toshiba_touchpad_get(dev, &dummy);
3146 dev->touchpad_supported = !ret;
3147
3148 toshiba_accelerometer_available(dev);
3149 if (dev->accelerometer_supported) {
3150 dev->indio_dev = iio_device_alloc(sizeof(*dev));
3151 if (!dev->indio_dev) {
3152 pr_err("Unable to allocate iio device\n");
3153 goto iio_error;
3154 }
3155
3156 pr_info("Registering Toshiba accelerometer iio device\n");
3157
3158 dev->indio_dev->info = &toshiba_iio_accel_info;
3159 dev->indio_dev->name = "Toshiba accelerometer";
3160 dev->indio_dev->dev.parent = &acpi_dev->dev;
3161 dev->indio_dev->modes = INDIO_DIRECT_MODE;
3162 dev->indio_dev->channels = toshiba_iio_accel_channels;
3163 dev->indio_dev->num_channels =
3164 ARRAY_SIZE(toshiba_iio_accel_channels);
3165
3166 ret = iio_device_register(dev->indio_dev);
3167 if (ret < 0) {
3168 pr_err("Unable to register iio device\n");
3169 iio_device_free(dev->indio_dev);
3170 }
3171 }
3172iio_error:
3173
3174 toshiba_usb_sleep_charge_available(dev);
3175
3176 ret = toshiba_usb_rapid_charge_get(dev, &dummy);
3177 dev->usb_rapid_charge_supported = !ret;
3178
3179 ret = toshiba_usb_sleep_music_get(dev, &dummy);
3180 dev->usb_sleep_music_supported = !ret;
3181
3182 ret = toshiba_panel_power_on_get(dev, &dummy);
3183 dev->panel_power_on_supported = !ret;
3184
3185 ret = toshiba_usb_three_get(dev, &dummy);
3186 dev->usb_three_supported = !ret;
3187
3188 ret = get_video_status(dev, &dummy);
3189 dev->video_supported = !ret;
3190
3191 ret = get_fan_status(dev, &dummy);
3192 dev->fan_supported = !ret;
3193
3194 toshiba_wwan_available(dev);
3195 if (dev->wwan_supported)
3196 toshiba_acpi_setup_wwan_rfkill(dev);
3197
3198 toshiba_cooling_method_available(dev);
3199
3200 print_supported_features(dev);
3201
3202 ret = sysfs_create_group(&dev->acpi_dev->dev.kobj,
3203 &toshiba_attr_group);
3204 if (ret) {
3205 dev->sysfs_created = 0;
3206 goto error;
3207 }
3208 dev->sysfs_created = !ret;
3209
3210 create_toshiba_proc_entries(dev);
3211
3212 toshiba_acpi = dev;
3213
3214 return 0;
3215
3216error:
3217 toshiba_acpi_remove(acpi_dev);
3218 return ret;
3219}
3220
3221static void toshiba_acpi_notify(struct acpi_device *acpi_dev, u32 event)
3222{
3223 struct toshiba_acpi_dev *dev = acpi_driver_data(acpi_dev);
3224
3225 switch (event) {
3226 case 0x80: /* Hotkeys and some system events */
3227 /*
3228 * Machines with this WMI GUID aren't supported due to bugs in
3229 * their AML.
3230 *
3231 * Return silently to avoid triggering a netlink event.
3232 */
3233 if (wmi_has_guid(TOSHIBA_WMI_EVENT_GUID))
3234 return;
3235 toshiba_acpi_process_hotkeys(dev);
3236 break;
3237 case 0x81: /* Dock events */
3238 case 0x82:
3239 case 0x83:
3240 pr_info("Dock event received %x\n", event);
3241 break;
3242 case 0x88: /* Thermal events */
3243 pr_info("Thermal event received\n");
3244 break;
3245 case 0x8f: /* LID closed */
3246 case 0x90: /* LID is closed and Dock has been ejected */
3247 break;
3248 case 0x8c: /* SATA power events */
3249 case 0x8b:
3250 pr_info("SATA power event received %x\n", event);
3251 break;
3252 case 0x92: /* Keyboard backlight mode changed */
3253 toshiba_acpi->kbd_event_generated = true;
3254 /* Update sysfs entries */
3255 if (sysfs_update_group(&acpi_dev->dev.kobj,
3256 &toshiba_attr_group))
3257 pr_err("Unable to update sysfs entries\n");
3258 break;
3259 case 0x85: /* Unknown */
3260 case 0x8d: /* Unknown */
3261 case 0x8e: /* Unknown */
3262 case 0x94: /* Unknown */
3263 case 0x95: /* Unknown */
3264 default:
3265 pr_info("Unknown event received %x\n", event);
3266 break;
3267 }
3268
3269 acpi_bus_generate_netlink_event(acpi_dev->pnp.device_class,
3270 dev_name(&acpi_dev->dev),
3271 event, (event == 0x80) ?
3272 dev->last_key_event : 0);
3273}
3274
3275#ifdef CONFIG_PM_SLEEP
3276static int toshiba_acpi_suspend(struct device *device)
3277{
3278 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3279
3280 if (dev->hotkey_dev) {
3281 u32 result;
3282
3283 result = hci_write(dev, HCI_HOTKEY_EVENT, HCI_HOTKEY_DISABLE);
3284 if (result != TOS_SUCCESS)
3285 pr_info("Unable to disable hotkeys\n");
3286 }
3287
3288 return 0;
3289}
3290
3291static int toshiba_acpi_resume(struct device *device)
3292{
3293 struct toshiba_acpi_dev *dev = acpi_driver_data(to_acpi_device(device));
3294
3295 if (dev->hotkey_dev) {
3296 if (toshiba_acpi_enable_hotkeys(dev))
3297 pr_info("Unable to re-enable hotkeys\n");
3298 }
3299
3300 if (dev->wwan_rfk) {
3301 if (!toshiba_wireless_status(dev))
3302 rfkill_set_hw_state(dev->wwan_rfk, !dev->killswitch);
3303 }
3304
3305 return 0;
3306}
3307#endif
3308
3309static SIMPLE_DEV_PM_OPS(toshiba_acpi_pm,
3310 toshiba_acpi_suspend, toshiba_acpi_resume);
3311
3312static struct acpi_driver toshiba_acpi_driver = {
3313 .name = "Toshiba ACPI driver",
3314 .owner = THIS_MODULE,
3315 .ids = toshiba_device_ids,
3316 .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
3317 .ops = {
3318 .add = toshiba_acpi_add,
3319 .remove = toshiba_acpi_remove,
3320 .notify = toshiba_acpi_notify,
3321 },
3322 .drv.pm = &toshiba_acpi_pm,
3323};
3324
3325static int __init toshiba_acpi_init(void)
3326{
3327 int ret;
3328
3329 toshiba_proc_dir = proc_mkdir(PROC_TOSHIBA, acpi_root_dir);
3330 if (!toshiba_proc_dir) {
3331 pr_err("Unable to create proc dir " PROC_TOSHIBA "\n");
3332 return -ENODEV;
3333 }
3334
3335 ret = acpi_bus_register_driver(&toshiba_acpi_driver);
3336 if (ret) {
3337 pr_err("Failed to register ACPI driver: %d\n", ret);
3338 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3339 }
3340
3341 return ret;
3342}
3343
3344static void __exit toshiba_acpi_exit(void)
3345{
3346 acpi_bus_unregister_driver(&toshiba_acpi_driver);
3347 if (toshiba_proc_dir)
3348 remove_proc_entry(PROC_TOSHIBA, acpi_root_dir);
3349}
3350
3351module_init(toshiba_acpi_init);
3352module_exit(toshiba_acpi_exit);