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1/*-*-linux-c-*-*/
2
3/*
4 Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de>
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful, but
12 WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
19 02110-1301, USA.
20 */
21
22/*
23 * msi-laptop.c - MSI S270 laptop support. This laptop is sold under
24 * various brands, including "Cytron/TCM/Medion/Tchibo MD96100".
25 *
26 * Driver also supports S271, S420 models.
27 *
28 * This driver exports a few files in /sys/devices/platform/msi-laptop-pf/:
29 *
30 * lcd_level - Screen brightness: contains a single integer in the
31 * range 0..8. (rw)
32 *
33 * auto_brightness - Enable automatic brightness control: contains
34 * either 0 or 1. If set to 1 the hardware adjusts the screen
35 * brightness automatically when the power cord is
36 * plugged/unplugged. (rw)
37 *
38 * wlan - WLAN subsystem enabled: contains either 0 or 1. (ro)
39 *
40 * bluetooth - Bluetooth subsystem enabled: contains either 0 or 1
41 * Please note that this file is constantly 0 if no Bluetooth
42 * hardware is available. (ro)
43 *
44 * In addition to these platform device attributes the driver
45 * registers itself in the Linux backlight control subsystem and is
46 * available to userspace under /sys/class/backlight/msi-laptop-bl/.
47 *
48 * This driver might work on other laptops produced by MSI. If you
49 * want to try it you can pass force=1 as argument to the module which
50 * will force it to load even when the DMI data doesn't identify the
51 * laptop as MSI S270. YMMV.
52 */
53
54#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
55
56#include <linux/module.h>
57#include <linux/kernel.h>
58#include <linux/init.h>
59#include <linux/acpi.h>
60#include <linux/dmi.h>
61#include <linux/backlight.h>
62#include <linux/platform_device.h>
63#include <linux/rfkill.h>
64#include <linux/i8042.h>
65#include <linux/input.h>
66#include <linux/input/sparse-keymap.h>
67#include <acpi/video.h>
68
69#define MSI_DRIVER_VERSION "0.5"
70
71#define MSI_LCD_LEVEL_MAX 9
72
73#define MSI_EC_COMMAND_WIRELESS 0x10
74#define MSI_EC_COMMAND_LCD_LEVEL 0x11
75
76#define MSI_STANDARD_EC_COMMAND_ADDRESS 0x2e
77#define MSI_STANDARD_EC_BLUETOOTH_MASK (1 << 0)
78#define MSI_STANDARD_EC_WEBCAM_MASK (1 << 1)
79#define MSI_STANDARD_EC_WLAN_MASK (1 << 3)
80#define MSI_STANDARD_EC_3G_MASK (1 << 4)
81
82/* For set SCM load flag to disable BIOS fn key */
83#define MSI_STANDARD_EC_SCM_LOAD_ADDRESS 0x2d
84#define MSI_STANDARD_EC_SCM_LOAD_MASK (1 << 0)
85
86#define MSI_STANDARD_EC_FUNCTIONS_ADDRESS 0xe4
87/* Power LED is orange - Turbo mode */
88#define MSI_STANDARD_EC_TURBO_MASK (1 << 1)
89/* Power LED is green - ECO mode */
90#define MSI_STANDARD_EC_ECO_MASK (1 << 3)
91/* Touchpad is turned on */
92#define MSI_STANDARD_EC_TOUCHPAD_MASK (1 << 4)
93/* If this bit != bit 1, turbo mode can't be toggled */
94#define MSI_STANDARD_EC_TURBO_COOLDOWN_MASK (1 << 7)
95
96#define MSI_STANDARD_EC_FAN_ADDRESS 0x33
97/* If zero, fan rotates at maximal speed */
98#define MSI_STANDARD_EC_AUTOFAN_MASK (1 << 0)
99
100#ifdef CONFIG_PM_SLEEP
101static int msi_laptop_resume(struct device *device);
102#endif
103static SIMPLE_DEV_PM_OPS(msi_laptop_pm, NULL, msi_laptop_resume);
104
105#define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS 0x2f
106
107static bool force;
108module_param(force, bool, 0);
109MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
110
111static int auto_brightness;
112module_param(auto_brightness, int, 0);
113MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
114
115static const struct key_entry msi_laptop_keymap[] = {
116 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} }, /* Touch Pad On */
117 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },/* Touch Pad On */
118 {KE_END, 0}
119};
120
121static struct input_dev *msi_laptop_input_dev;
122
123static int wlan_s, bluetooth_s, threeg_s;
124static int threeg_exists;
125static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg;
126
127/* MSI laptop quirks */
128struct quirk_entry {
129 bool old_ec_model;
130
131 /* Some MSI 3G netbook only have one fn key to control
132 * Wlan/Bluetooth/3G, those netbook will load the SCM (windows app) to
133 * disable the original Wlan/Bluetooth control by BIOS when user press
134 * fn key, then control Wlan/Bluetooth/3G by SCM (software control by
135 * OS). Without SCM, user cann't on/off 3G module on those 3G netbook.
136 * On Linux, msi-laptop driver will do the same thing to disable the
137 * original BIOS control, then might need use HAL or other userland
138 * application to do the software control that simulate with SCM.
139 * e.g. MSI N034 netbook
140 */
141 bool load_scm_model;
142
143 /* Some MSI laptops need delay before reading from EC */
144 bool ec_delay;
145
146 /* Some MSI Wind netbooks (e.g. MSI Wind U100) need loading SCM to get
147 * some features working (e.g. ECO mode), but we cannot change
148 * Wlan/Bluetooth state in software and we can only read its state.
149 */
150 bool ec_read_only;
151};
152
153static struct quirk_entry *quirks;
154
155/* Hardware access */
156
157static int set_lcd_level(int level)
158{
159 u8 buf[2];
160
161 if (level < 0 || level >= MSI_LCD_LEVEL_MAX)
162 return -EINVAL;
163
164 buf[0] = 0x80;
165 buf[1] = (u8) (level*31);
166
167 return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf),
168 NULL, 0);
169}
170
171static int get_lcd_level(void)
172{
173 u8 wdata = 0, rdata;
174 int result;
175
176 result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
177 &rdata, 1);
178 if (result < 0)
179 return result;
180
181 return (int) rdata / 31;
182}
183
184static int get_auto_brightness(void)
185{
186 u8 wdata = 4, rdata;
187 int result;
188
189 result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
190 &rdata, 1);
191 if (result < 0)
192 return result;
193
194 return !!(rdata & 8);
195}
196
197static int set_auto_brightness(int enable)
198{
199 u8 wdata[2], rdata;
200 int result;
201
202 wdata[0] = 4;
203
204 result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1,
205 &rdata, 1);
206 if (result < 0)
207 return result;
208
209 wdata[0] = 0x84;
210 wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0);
211
212 return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2,
213 NULL, 0);
214}
215
216static ssize_t set_device_state(const char *buf, size_t count, u8 mask)
217{
218 int status;
219 u8 wdata = 0, rdata;
220 int result;
221
222 if (sscanf(buf, "%i", &status) != 1 || (status < 0 || status > 1))
223 return -EINVAL;
224
225 if (quirks->ec_read_only)
226 return -EOPNOTSUPP;
227
228 /* read current device state */
229 result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
230 if (result < 0)
231 return result;
232
233 if (!!(rdata & mask) != status) {
234 /* reverse device bit */
235 if (rdata & mask)
236 wdata = rdata & ~mask;
237 else
238 wdata = rdata | mask;
239
240 result = ec_write(MSI_STANDARD_EC_COMMAND_ADDRESS, wdata);
241 if (result < 0)
242 return result;
243 }
244
245 return count;
246}
247
248static int get_wireless_state(int *wlan, int *bluetooth)
249{
250 u8 wdata = 0, rdata;
251 int result;
252
253 result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1);
254 if (result < 0)
255 return result;
256
257 if (wlan)
258 *wlan = !!(rdata & 8);
259
260 if (bluetooth)
261 *bluetooth = !!(rdata & 128);
262
263 return 0;
264}
265
266static int get_wireless_state_ec_standard(void)
267{
268 u8 rdata;
269 int result;
270
271 result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
272 if (result < 0)
273 return result;
274
275 wlan_s = !!(rdata & MSI_STANDARD_EC_WLAN_MASK);
276
277 bluetooth_s = !!(rdata & MSI_STANDARD_EC_BLUETOOTH_MASK);
278
279 threeg_s = !!(rdata & MSI_STANDARD_EC_3G_MASK);
280
281 return 0;
282}
283
284static int get_threeg_exists(void)
285{
286 u8 rdata;
287 int result;
288
289 result = ec_read(MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS, &rdata);
290 if (result < 0)
291 return result;
292
293 threeg_exists = !!(rdata & MSI_STANDARD_EC_3G_MASK);
294
295 return 0;
296}
297
298/* Backlight device stuff */
299
300static int bl_get_brightness(struct backlight_device *b)
301{
302 return get_lcd_level();
303}
304
305
306static int bl_update_status(struct backlight_device *b)
307{
308 return set_lcd_level(b->props.brightness);
309}
310
311static const struct backlight_ops msibl_ops = {
312 .get_brightness = bl_get_brightness,
313 .update_status = bl_update_status,
314};
315
316static struct backlight_device *msibl_device;
317
318/* Platform device */
319
320static ssize_t show_wlan(struct device *dev,
321 struct device_attribute *attr, char *buf)
322{
323
324 int ret, enabled = 0;
325
326 if (quirks->old_ec_model) {
327 ret = get_wireless_state(&enabled, NULL);
328 } else {
329 ret = get_wireless_state_ec_standard();
330 enabled = wlan_s;
331 }
332 if (ret < 0)
333 return ret;
334
335 return sprintf(buf, "%i\n", enabled);
336}
337
338static ssize_t store_wlan(struct device *dev,
339 struct device_attribute *attr, const char *buf, size_t count)
340{
341 return set_device_state(buf, count, MSI_STANDARD_EC_WLAN_MASK);
342}
343
344static ssize_t show_bluetooth(struct device *dev,
345 struct device_attribute *attr, char *buf)
346{
347
348 int ret, enabled = 0;
349
350 if (quirks->old_ec_model) {
351 ret = get_wireless_state(NULL, &enabled);
352 } else {
353 ret = get_wireless_state_ec_standard();
354 enabled = bluetooth_s;
355 }
356 if (ret < 0)
357 return ret;
358
359 return sprintf(buf, "%i\n", enabled);
360}
361
362static ssize_t store_bluetooth(struct device *dev,
363 struct device_attribute *attr, const char *buf, size_t count)
364{
365 return set_device_state(buf, count, MSI_STANDARD_EC_BLUETOOTH_MASK);
366}
367
368static ssize_t show_threeg(struct device *dev,
369 struct device_attribute *attr, char *buf)
370{
371
372 int ret;
373
374 /* old msi ec not support 3G */
375 if (quirks->old_ec_model)
376 return -ENODEV;
377
378 ret = get_wireless_state_ec_standard();
379 if (ret < 0)
380 return ret;
381
382 return sprintf(buf, "%i\n", threeg_s);
383}
384
385static ssize_t store_threeg(struct device *dev,
386 struct device_attribute *attr, const char *buf, size_t count)
387{
388 return set_device_state(buf, count, MSI_STANDARD_EC_3G_MASK);
389}
390
391static ssize_t show_lcd_level(struct device *dev,
392 struct device_attribute *attr, char *buf)
393{
394
395 int ret;
396
397 ret = get_lcd_level();
398 if (ret < 0)
399 return ret;
400
401 return sprintf(buf, "%i\n", ret);
402}
403
404static ssize_t store_lcd_level(struct device *dev,
405 struct device_attribute *attr, const char *buf, size_t count)
406{
407
408 int level, ret;
409
410 if (sscanf(buf, "%i", &level) != 1 ||
411 (level < 0 || level >= MSI_LCD_LEVEL_MAX))
412 return -EINVAL;
413
414 ret = set_lcd_level(level);
415 if (ret < 0)
416 return ret;
417
418 return count;
419}
420
421static ssize_t show_auto_brightness(struct device *dev,
422 struct device_attribute *attr, char *buf)
423{
424
425 int ret;
426
427 ret = get_auto_brightness();
428 if (ret < 0)
429 return ret;
430
431 return sprintf(buf, "%i\n", ret);
432}
433
434static ssize_t store_auto_brightness(struct device *dev,
435 struct device_attribute *attr, const char *buf, size_t count)
436{
437
438 int enable, ret;
439
440 if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
441 return -EINVAL;
442
443 ret = set_auto_brightness(enable);
444 if (ret < 0)
445 return ret;
446
447 return count;
448}
449
450static ssize_t show_touchpad(struct device *dev,
451 struct device_attribute *attr, char *buf)
452{
453
454 u8 rdata;
455 int result;
456
457 result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
458 if (result < 0)
459 return result;
460
461 return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TOUCHPAD_MASK));
462}
463
464static ssize_t show_turbo(struct device *dev,
465 struct device_attribute *attr, char *buf)
466{
467
468 u8 rdata;
469 int result;
470
471 result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
472 if (result < 0)
473 return result;
474
475 return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TURBO_MASK));
476}
477
478static ssize_t show_eco(struct device *dev,
479 struct device_attribute *attr, char *buf)
480{
481
482 u8 rdata;
483 int result;
484
485 result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
486 if (result < 0)
487 return result;
488
489 return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_ECO_MASK));
490}
491
492static ssize_t show_turbo_cooldown(struct device *dev,
493 struct device_attribute *attr, char *buf)
494{
495
496 u8 rdata;
497 int result;
498
499 result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
500 if (result < 0)
501 return result;
502
503 return sprintf(buf, "%i\n", (!!(rdata & MSI_STANDARD_EC_TURBO_MASK)) |
504 (!!(rdata & MSI_STANDARD_EC_TURBO_COOLDOWN_MASK) << 1));
505}
506
507static ssize_t show_auto_fan(struct device *dev,
508 struct device_attribute *attr, char *buf)
509{
510
511 u8 rdata;
512 int result;
513
514 result = ec_read(MSI_STANDARD_EC_FAN_ADDRESS, &rdata);
515 if (result < 0)
516 return result;
517
518 return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_AUTOFAN_MASK));
519}
520
521static ssize_t store_auto_fan(struct device *dev,
522 struct device_attribute *attr, const char *buf, size_t count)
523{
524
525 int enable, result;
526
527 if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
528 return -EINVAL;
529
530 result = ec_write(MSI_STANDARD_EC_FAN_ADDRESS, enable);
531 if (result < 0)
532 return result;
533
534 return count;
535}
536
537static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
538static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness,
539 store_auto_brightness);
540static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
541static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
542static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
543static DEVICE_ATTR(touchpad, 0444, show_touchpad, NULL);
544static DEVICE_ATTR(turbo_mode, 0444, show_turbo, NULL);
545static DEVICE_ATTR(eco_mode, 0444, show_eco, NULL);
546static DEVICE_ATTR(turbo_cooldown, 0444, show_turbo_cooldown, NULL);
547static DEVICE_ATTR(auto_fan, 0644, show_auto_fan, store_auto_fan);
548
549static struct attribute *msipf_attributes[] = {
550 &dev_attr_bluetooth.attr,
551 &dev_attr_wlan.attr,
552 &dev_attr_touchpad.attr,
553 &dev_attr_turbo_mode.attr,
554 &dev_attr_eco_mode.attr,
555 &dev_attr_turbo_cooldown.attr,
556 &dev_attr_auto_fan.attr,
557 NULL
558};
559
560static struct attribute *msipf_old_attributes[] = {
561 &dev_attr_lcd_level.attr,
562 &dev_attr_auto_brightness.attr,
563 NULL
564};
565
566static struct attribute_group msipf_attribute_group = {
567 .attrs = msipf_attributes
568};
569
570static struct attribute_group msipf_old_attribute_group = {
571 .attrs = msipf_old_attributes
572};
573
574static struct platform_driver msipf_driver = {
575 .driver = {
576 .name = "msi-laptop-pf",
577 .pm = &msi_laptop_pm,
578 },
579};
580
581static struct platform_device *msipf_device;
582
583/* Initialization */
584
585static struct quirk_entry quirk_old_ec_model = {
586 .old_ec_model = true,
587};
588
589static struct quirk_entry quirk_load_scm_model = {
590 .load_scm_model = true,
591 .ec_delay = true,
592};
593
594static struct quirk_entry quirk_load_scm_ro_model = {
595 .load_scm_model = true,
596 .ec_read_only = true,
597};
598
599static int dmi_check_cb(const struct dmi_system_id *dmi)
600{
601 pr_info("Identified laptop model '%s'\n", dmi->ident);
602
603 quirks = dmi->driver_data;
604
605 return 1;
606}
607
608static struct dmi_system_id __initdata msi_dmi_table[] = {
609 {
610 .ident = "MSI S270",
611 .matches = {
612 DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
613 DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
614 DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
615 DMI_MATCH(DMI_CHASSIS_VENDOR,
616 "MICRO-STAR INT'L CO.,LTD")
617 },
618 .driver_data = &quirk_old_ec_model,
619 .callback = dmi_check_cb
620 },
621 {
622 .ident = "MSI S271",
623 .matches = {
624 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
625 DMI_MATCH(DMI_PRODUCT_NAME, "MS-1058"),
626 DMI_MATCH(DMI_PRODUCT_VERSION, "0581"),
627 DMI_MATCH(DMI_BOARD_NAME, "MS-1058")
628 },
629 .driver_data = &quirk_old_ec_model,
630 .callback = dmi_check_cb
631 },
632 {
633 .ident = "MSI S420",
634 .matches = {
635 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
636 DMI_MATCH(DMI_PRODUCT_NAME, "MS-1412"),
637 DMI_MATCH(DMI_BOARD_VENDOR, "MSI"),
638 DMI_MATCH(DMI_BOARD_NAME, "MS-1412")
639 },
640 .driver_data = &quirk_old_ec_model,
641 .callback = dmi_check_cb
642 },
643 {
644 .ident = "Medion MD96100",
645 .matches = {
646 DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
647 DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
648 DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
649 DMI_MATCH(DMI_CHASSIS_VENDOR,
650 "MICRO-STAR INT'L CO.,LTD")
651 },
652 .driver_data = &quirk_old_ec_model,
653 .callback = dmi_check_cb
654 },
655 {
656 .ident = "MSI N034",
657 .matches = {
658 DMI_MATCH(DMI_SYS_VENDOR,
659 "MICRO-STAR INTERNATIONAL CO., LTD"),
660 DMI_MATCH(DMI_PRODUCT_NAME, "MS-N034"),
661 DMI_MATCH(DMI_CHASSIS_VENDOR,
662 "MICRO-STAR INTERNATIONAL CO., LTD")
663 },
664 .driver_data = &quirk_load_scm_model,
665 .callback = dmi_check_cb
666 },
667 {
668 .ident = "MSI N051",
669 .matches = {
670 DMI_MATCH(DMI_SYS_VENDOR,
671 "MICRO-STAR INTERNATIONAL CO., LTD"),
672 DMI_MATCH(DMI_PRODUCT_NAME, "MS-N051"),
673 DMI_MATCH(DMI_CHASSIS_VENDOR,
674 "MICRO-STAR INTERNATIONAL CO., LTD")
675 },
676 .driver_data = &quirk_load_scm_model,
677 .callback = dmi_check_cb
678 },
679 {
680 .ident = "MSI N014",
681 .matches = {
682 DMI_MATCH(DMI_SYS_VENDOR,
683 "MICRO-STAR INTERNATIONAL CO., LTD"),
684 DMI_MATCH(DMI_PRODUCT_NAME, "MS-N014"),
685 },
686 .driver_data = &quirk_load_scm_model,
687 .callback = dmi_check_cb
688 },
689 {
690 .ident = "MSI CR620",
691 .matches = {
692 DMI_MATCH(DMI_SYS_VENDOR,
693 "Micro-Star International"),
694 DMI_MATCH(DMI_PRODUCT_NAME, "CR620"),
695 },
696 .driver_data = &quirk_load_scm_model,
697 .callback = dmi_check_cb
698 },
699 {
700 .ident = "MSI U270",
701 .matches = {
702 DMI_MATCH(DMI_SYS_VENDOR,
703 "Micro-Star International Co., Ltd."),
704 DMI_MATCH(DMI_PRODUCT_NAME, "U270 series"),
705 },
706 .driver_data = &quirk_load_scm_model,
707 .callback = dmi_check_cb
708 },
709 {
710 .ident = "MSI U90/U100",
711 .matches = {
712 DMI_MATCH(DMI_SYS_VENDOR,
713 "MICRO-STAR INTERNATIONAL CO., LTD"),
714 DMI_MATCH(DMI_PRODUCT_NAME, "U90/U100"),
715 },
716 .driver_data = &quirk_load_scm_ro_model,
717 .callback = dmi_check_cb
718 },
719 { }
720};
721
722static int rfkill_bluetooth_set(void *data, bool blocked)
723{
724 /* Do something with blocked...*/
725 /*
726 * blocked == false is on
727 * blocked == true is off
728 */
729 int result = set_device_state(blocked ? "0" : "1", 0,
730 MSI_STANDARD_EC_BLUETOOTH_MASK);
731
732 return min(result, 0);
733}
734
735static int rfkill_wlan_set(void *data, bool blocked)
736{
737 int result = set_device_state(blocked ? "0" : "1", 0,
738 MSI_STANDARD_EC_WLAN_MASK);
739
740 return min(result, 0);
741}
742
743static int rfkill_threeg_set(void *data, bool blocked)
744{
745 int result = set_device_state(blocked ? "0" : "1", 0,
746 MSI_STANDARD_EC_3G_MASK);
747
748 return min(result, 0);
749}
750
751static const struct rfkill_ops rfkill_bluetooth_ops = {
752 .set_block = rfkill_bluetooth_set
753};
754
755static const struct rfkill_ops rfkill_wlan_ops = {
756 .set_block = rfkill_wlan_set
757};
758
759static const struct rfkill_ops rfkill_threeg_ops = {
760 .set_block = rfkill_threeg_set
761};
762
763static void rfkill_cleanup(void)
764{
765 if (rfk_bluetooth) {
766 rfkill_unregister(rfk_bluetooth);
767 rfkill_destroy(rfk_bluetooth);
768 }
769
770 if (rfk_threeg) {
771 rfkill_unregister(rfk_threeg);
772 rfkill_destroy(rfk_threeg);
773 }
774
775 if (rfk_wlan) {
776 rfkill_unregister(rfk_wlan);
777 rfkill_destroy(rfk_wlan);
778 }
779}
780
781static bool msi_rfkill_set_state(struct rfkill *rfkill, bool blocked)
782{
783 if (quirks->ec_read_only)
784 return rfkill_set_hw_state(rfkill, blocked);
785 else
786 return rfkill_set_sw_state(rfkill, blocked);
787}
788
789static void msi_update_rfkill(struct work_struct *ignored)
790{
791 get_wireless_state_ec_standard();
792
793 if (rfk_wlan)
794 msi_rfkill_set_state(rfk_wlan, !wlan_s);
795 if (rfk_bluetooth)
796 msi_rfkill_set_state(rfk_bluetooth, !bluetooth_s);
797 if (rfk_threeg)
798 msi_rfkill_set_state(rfk_threeg, !threeg_s);
799}
800static DECLARE_DELAYED_WORK(msi_rfkill_dwork, msi_update_rfkill);
801static DECLARE_WORK(msi_rfkill_work, msi_update_rfkill);
802
803static void msi_send_touchpad_key(struct work_struct *ignored)
804{
805 u8 rdata;
806 int result;
807
808 result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
809 if (result < 0)
810 return;
811
812 sparse_keymap_report_event(msi_laptop_input_dev,
813 (rdata & MSI_STANDARD_EC_TOUCHPAD_MASK) ?
814 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF, 1, true);
815}
816static DECLARE_DELAYED_WORK(msi_touchpad_dwork, msi_send_touchpad_key);
817static DECLARE_WORK(msi_touchpad_work, msi_send_touchpad_key);
818
819static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
820 struct serio *port)
821{
822 static bool extended;
823
824 if (str & I8042_STR_AUXDATA)
825 return false;
826
827 /* 0x54 wwan, 0x62 bluetooth, 0x76 wlan, 0xE4 touchpad toggle*/
828 if (unlikely(data == 0xe0)) {
829 extended = true;
830 return false;
831 } else if (unlikely(extended)) {
832 extended = false;
833 switch (data) {
834 case 0xE4:
835 if (quirks->ec_delay) {
836 schedule_delayed_work(&msi_touchpad_dwork,
837 round_jiffies_relative(0.5 * HZ));
838 } else
839 schedule_work(&msi_touchpad_work);
840 break;
841 case 0x54:
842 case 0x62:
843 case 0x76:
844 if (quirks->ec_delay) {
845 schedule_delayed_work(&msi_rfkill_dwork,
846 round_jiffies_relative(0.5 * HZ));
847 } else
848 schedule_work(&msi_rfkill_work);
849 break;
850 }
851 }
852
853 return false;
854}
855
856static void msi_init_rfkill(struct work_struct *ignored)
857{
858 if (rfk_wlan) {
859 rfkill_set_sw_state(rfk_wlan, !wlan_s);
860 rfkill_wlan_set(NULL, !wlan_s);
861 }
862 if (rfk_bluetooth) {
863 rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
864 rfkill_bluetooth_set(NULL, !bluetooth_s);
865 }
866 if (rfk_threeg) {
867 rfkill_set_sw_state(rfk_threeg, !threeg_s);
868 rfkill_threeg_set(NULL, !threeg_s);
869 }
870}
871static DECLARE_DELAYED_WORK(msi_rfkill_init, msi_init_rfkill);
872
873static int rfkill_init(struct platform_device *sdev)
874{
875 /* add rfkill */
876 int retval;
877
878 /* keep the hardware wireless state */
879 get_wireless_state_ec_standard();
880
881 rfk_bluetooth = rfkill_alloc("msi-bluetooth", &sdev->dev,
882 RFKILL_TYPE_BLUETOOTH,
883 &rfkill_bluetooth_ops, NULL);
884 if (!rfk_bluetooth) {
885 retval = -ENOMEM;
886 goto err_bluetooth;
887 }
888 retval = rfkill_register(rfk_bluetooth);
889 if (retval)
890 goto err_bluetooth;
891
892 rfk_wlan = rfkill_alloc("msi-wlan", &sdev->dev, RFKILL_TYPE_WLAN,
893 &rfkill_wlan_ops, NULL);
894 if (!rfk_wlan) {
895 retval = -ENOMEM;
896 goto err_wlan;
897 }
898 retval = rfkill_register(rfk_wlan);
899 if (retval)
900 goto err_wlan;
901
902 if (threeg_exists) {
903 rfk_threeg = rfkill_alloc("msi-threeg", &sdev->dev,
904 RFKILL_TYPE_WWAN, &rfkill_threeg_ops, NULL);
905 if (!rfk_threeg) {
906 retval = -ENOMEM;
907 goto err_threeg;
908 }
909 retval = rfkill_register(rfk_threeg);
910 if (retval)
911 goto err_threeg;
912 }
913
914 /* schedule to run rfkill state initial */
915 if (quirks->ec_delay) {
916 schedule_delayed_work(&msi_rfkill_init,
917 round_jiffies_relative(1 * HZ));
918 } else
919 schedule_work(&msi_rfkill_work);
920
921 return 0;
922
923err_threeg:
924 rfkill_destroy(rfk_threeg);
925 if (rfk_wlan)
926 rfkill_unregister(rfk_wlan);
927err_wlan:
928 rfkill_destroy(rfk_wlan);
929 if (rfk_bluetooth)
930 rfkill_unregister(rfk_bluetooth);
931err_bluetooth:
932 rfkill_destroy(rfk_bluetooth);
933
934 return retval;
935}
936
937#ifdef CONFIG_PM_SLEEP
938static int msi_laptop_resume(struct device *device)
939{
940 u8 data;
941 int result;
942
943 if (!quirks->load_scm_model)
944 return 0;
945
946 /* set load SCM to disable hardware control by fn key */
947 result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
948 if (result < 0)
949 return result;
950
951 result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
952 data | MSI_STANDARD_EC_SCM_LOAD_MASK);
953 if (result < 0)
954 return result;
955
956 return 0;
957}
958#endif
959
960static int __init msi_laptop_input_setup(void)
961{
962 int err;
963
964 msi_laptop_input_dev = input_allocate_device();
965 if (!msi_laptop_input_dev)
966 return -ENOMEM;
967
968 msi_laptop_input_dev->name = "MSI Laptop hotkeys";
969 msi_laptop_input_dev->phys = "msi-laptop/input0";
970 msi_laptop_input_dev->id.bustype = BUS_HOST;
971
972 err = sparse_keymap_setup(msi_laptop_input_dev,
973 msi_laptop_keymap, NULL);
974 if (err)
975 goto err_free_dev;
976
977 err = input_register_device(msi_laptop_input_dev);
978 if (err)
979 goto err_free_keymap;
980
981 return 0;
982
983err_free_keymap:
984 sparse_keymap_free(msi_laptop_input_dev);
985err_free_dev:
986 input_free_device(msi_laptop_input_dev);
987 return err;
988}
989
990static void msi_laptop_input_destroy(void)
991{
992 sparse_keymap_free(msi_laptop_input_dev);
993 input_unregister_device(msi_laptop_input_dev);
994}
995
996static int __init load_scm_model_init(struct platform_device *sdev)
997{
998 u8 data;
999 int result;
1000
1001 if (!quirks->ec_read_only) {
1002 /* allow userland write sysfs file */
1003 dev_attr_bluetooth.store = store_bluetooth;
1004 dev_attr_wlan.store = store_wlan;
1005 dev_attr_threeg.store = store_threeg;
1006 dev_attr_bluetooth.attr.mode |= S_IWUSR;
1007 dev_attr_wlan.attr.mode |= S_IWUSR;
1008 dev_attr_threeg.attr.mode |= S_IWUSR;
1009 }
1010
1011 /* disable hardware control by fn key */
1012 result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
1013 if (result < 0)
1014 return result;
1015
1016 result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
1017 data | MSI_STANDARD_EC_SCM_LOAD_MASK);
1018 if (result < 0)
1019 return result;
1020
1021 /* initial rfkill */
1022 result = rfkill_init(sdev);
1023 if (result < 0)
1024 goto fail_rfkill;
1025
1026 /* setup input device */
1027 result = msi_laptop_input_setup();
1028 if (result)
1029 goto fail_input;
1030
1031 result = i8042_install_filter(msi_laptop_i8042_filter);
1032 if (result) {
1033 pr_err("Unable to install key filter\n");
1034 goto fail_filter;
1035 }
1036
1037 return 0;
1038
1039fail_filter:
1040 msi_laptop_input_destroy();
1041
1042fail_input:
1043 rfkill_cleanup();
1044
1045fail_rfkill:
1046
1047 return result;
1048
1049}
1050
1051static int __init msi_init(void)
1052{
1053 int ret;
1054
1055 if (acpi_disabled)
1056 return -ENODEV;
1057
1058 dmi_check_system(msi_dmi_table);
1059 if (!quirks)
1060 /* quirks may be NULL if no match in DMI table */
1061 quirks = &quirk_load_scm_model;
1062 if (force)
1063 quirks = &quirk_old_ec_model;
1064
1065 if (!quirks->old_ec_model)
1066 get_threeg_exists();
1067
1068 if (auto_brightness < 0 || auto_brightness > 2)
1069 return -EINVAL;
1070
1071 /* Register backlight stuff */
1072
1073 if (quirks->old_ec_model ||
1074 acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1075 struct backlight_properties props;
1076 memset(&props, 0, sizeof(struct backlight_properties));
1077 props.type = BACKLIGHT_PLATFORM;
1078 props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
1079 msibl_device = backlight_device_register("msi-laptop-bl", NULL,
1080 NULL, &msibl_ops,
1081 &props);
1082 if (IS_ERR(msibl_device))
1083 return PTR_ERR(msibl_device);
1084 }
1085
1086 ret = platform_driver_register(&msipf_driver);
1087 if (ret)
1088 goto fail_backlight;
1089
1090 /* Register platform stuff */
1091
1092 msipf_device = platform_device_alloc("msi-laptop-pf", -1);
1093 if (!msipf_device) {
1094 ret = -ENOMEM;
1095 goto fail_platform_driver;
1096 }
1097
1098 ret = platform_device_add(msipf_device);
1099 if (ret)
1100 goto fail_device_add;
1101
1102 if (quirks->load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
1103 ret = -EINVAL;
1104 goto fail_scm_model_init;
1105 }
1106
1107 ret = sysfs_create_group(&msipf_device->dev.kobj,
1108 &msipf_attribute_group);
1109 if (ret)
1110 goto fail_create_group;
1111
1112 if (!quirks->old_ec_model) {
1113 if (threeg_exists)
1114 ret = device_create_file(&msipf_device->dev,
1115 &dev_attr_threeg);
1116 if (ret)
1117 goto fail_create_attr;
1118 } else {
1119 ret = sysfs_create_group(&msipf_device->dev.kobj,
1120 &msipf_old_attribute_group);
1121 if (ret)
1122 goto fail_create_attr;
1123
1124 /* Disable automatic brightness control by default because
1125 * this module was probably loaded to do brightness control in
1126 * software. */
1127
1128 if (auto_brightness != 2)
1129 set_auto_brightness(auto_brightness);
1130 }
1131
1132 pr_info("driver " MSI_DRIVER_VERSION " successfully loaded\n");
1133
1134 return 0;
1135
1136fail_create_attr:
1137 sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1138fail_create_group:
1139 if (quirks->load_scm_model) {
1140 i8042_remove_filter(msi_laptop_i8042_filter);
1141 cancel_delayed_work_sync(&msi_rfkill_dwork);
1142 cancel_work_sync(&msi_rfkill_work);
1143 rfkill_cleanup();
1144 }
1145fail_scm_model_init:
1146 platform_device_del(msipf_device);
1147fail_device_add:
1148 platform_device_put(msipf_device);
1149fail_platform_driver:
1150 platform_driver_unregister(&msipf_driver);
1151fail_backlight:
1152 backlight_device_unregister(msibl_device);
1153
1154 return ret;
1155}
1156
1157static void __exit msi_cleanup(void)
1158{
1159 if (quirks->load_scm_model) {
1160 i8042_remove_filter(msi_laptop_i8042_filter);
1161 msi_laptop_input_destroy();
1162 cancel_delayed_work_sync(&msi_rfkill_dwork);
1163 cancel_work_sync(&msi_rfkill_work);
1164 rfkill_cleanup();
1165 }
1166
1167 sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1168 if (!quirks->old_ec_model && threeg_exists)
1169 device_remove_file(&msipf_device->dev, &dev_attr_threeg);
1170 platform_device_unregister(msipf_device);
1171 platform_driver_unregister(&msipf_driver);
1172 backlight_device_unregister(msibl_device);
1173
1174 if (quirks->old_ec_model) {
1175 /* Enable automatic brightness control again */
1176 if (auto_brightness != 2)
1177 set_auto_brightness(1);
1178 }
1179
1180 pr_info("driver unloaded\n");
1181}
1182
1183module_init(msi_init);
1184module_exit(msi_cleanup);
1185
1186MODULE_AUTHOR("Lennart Poettering");
1187MODULE_DESCRIPTION("MSI Laptop Support");
1188MODULE_VERSION(MSI_DRIVER_VERSION);
1189MODULE_LICENSE("GPL");
1190
1191MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1192MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
1193MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1194MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1195MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
1196MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N051:*");
1197MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N014:*");
1198MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnCR620:*");
1199MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnU270series:*");
1200MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnU90/U100:*");
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*-*-linux-c-*-*/
3
4/*
5 Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de>
6
7 */
8
9/*
10 * msi-laptop.c - MSI S270 laptop support. This laptop is sold under
11 * various brands, including "Cytron/TCM/Medion/Tchibo MD96100".
12 *
13 * Driver also supports S271, S420 models.
14 *
15 * This driver exports a few files in /sys/devices/platform/msi-laptop-pf/:
16 *
17 * lcd_level - Screen brightness: contains a single integer in the
18 * range 0..8. (rw)
19 *
20 * auto_brightness - Enable automatic brightness control: contains
21 * either 0 or 1. If set to 1 the hardware adjusts the screen
22 * brightness automatically when the power cord is
23 * plugged/unplugged. (rw)
24 *
25 * wlan - WLAN subsystem enabled: contains either 0 or 1. (ro)
26 *
27 * bluetooth - Bluetooth subsystem enabled: contains either 0 or 1
28 * Please note that this file is constantly 0 if no Bluetooth
29 * hardware is available. (ro)
30 *
31 * In addition to these platform device attributes the driver
32 * registers itself in the Linux backlight control subsystem and is
33 * available to userspace under /sys/class/backlight/msi-laptop-bl/.
34 *
35 * This driver might work on other laptops produced by MSI. If you
36 * want to try it you can pass force=1 as argument to the module which
37 * will force it to load even when the DMI data doesn't identify the
38 * laptop as MSI S270. YMMV.
39 */
40
41#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
42
43#include <linux/module.h>
44#include <linux/kernel.h>
45#include <linux/init.h>
46#include <linux/acpi.h>
47#include <linux/dmi.h>
48#include <linux/backlight.h>
49#include <linux/platform_device.h>
50#include <linux/rfkill.h>
51#include <linux/i8042.h>
52#include <linux/input.h>
53#include <linux/input/sparse-keymap.h>
54#include <acpi/video.h>
55
56#define MSI_DRIVER_VERSION "0.5"
57
58#define MSI_LCD_LEVEL_MAX 9
59
60#define MSI_EC_COMMAND_WIRELESS 0x10
61#define MSI_EC_COMMAND_LCD_LEVEL 0x11
62
63#define MSI_STANDARD_EC_COMMAND_ADDRESS 0x2e
64#define MSI_STANDARD_EC_BLUETOOTH_MASK (1 << 0)
65#define MSI_STANDARD_EC_WEBCAM_MASK (1 << 1)
66#define MSI_STANDARD_EC_WLAN_MASK (1 << 3)
67#define MSI_STANDARD_EC_3G_MASK (1 << 4)
68
69/* For set SCM load flag to disable BIOS fn key */
70#define MSI_STANDARD_EC_SCM_LOAD_ADDRESS 0x2d
71#define MSI_STANDARD_EC_SCM_LOAD_MASK (1 << 0)
72
73#define MSI_STANDARD_EC_FUNCTIONS_ADDRESS 0xe4
74/* Power LED is orange - Turbo mode */
75#define MSI_STANDARD_EC_TURBO_MASK (1 << 1)
76/* Power LED is green - ECO mode */
77#define MSI_STANDARD_EC_ECO_MASK (1 << 3)
78/* Touchpad is turned on */
79#define MSI_STANDARD_EC_TOUCHPAD_MASK (1 << 4)
80/* If this bit != bit 1, turbo mode can't be toggled */
81#define MSI_STANDARD_EC_TURBO_COOLDOWN_MASK (1 << 7)
82
83#define MSI_STANDARD_EC_FAN_ADDRESS 0x33
84/* If zero, fan rotates at maximal speed */
85#define MSI_STANDARD_EC_AUTOFAN_MASK (1 << 0)
86
87#ifdef CONFIG_PM_SLEEP
88static int msi_laptop_resume(struct device *device);
89#endif
90static SIMPLE_DEV_PM_OPS(msi_laptop_pm, NULL, msi_laptop_resume);
91
92#define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS 0x2f
93
94static bool force;
95module_param(force, bool, 0);
96MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
97
98static int auto_brightness;
99module_param(auto_brightness, int, 0);
100MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
101
102static const struct key_entry msi_laptop_keymap[] = {
103 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} }, /* Touch Pad On */
104 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },/* Touch Pad On */
105 {KE_END, 0}
106};
107
108static struct input_dev *msi_laptop_input_dev;
109
110static int wlan_s, bluetooth_s, threeg_s;
111static int threeg_exists;
112static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg;
113
114/* MSI laptop quirks */
115struct quirk_entry {
116 bool old_ec_model;
117
118 /* Some MSI 3G netbook only have one fn key to control
119 * Wlan/Bluetooth/3G, those netbook will load the SCM (windows app) to
120 * disable the original Wlan/Bluetooth control by BIOS when user press
121 * fn key, then control Wlan/Bluetooth/3G by SCM (software control by
122 * OS). Without SCM, user cann't on/off 3G module on those 3G netbook.
123 * On Linux, msi-laptop driver will do the same thing to disable the
124 * original BIOS control, then might need use HAL or other userland
125 * application to do the software control that simulate with SCM.
126 * e.g. MSI N034 netbook
127 */
128 bool load_scm_model;
129
130 /* Some MSI laptops need delay before reading from EC */
131 bool ec_delay;
132
133 /* Some MSI Wind netbooks (e.g. MSI Wind U100) need loading SCM to get
134 * some features working (e.g. ECO mode), but we cannot change
135 * Wlan/Bluetooth state in software and we can only read its state.
136 */
137 bool ec_read_only;
138};
139
140static struct quirk_entry *quirks;
141
142/* Hardware access */
143
144static int set_lcd_level(int level)
145{
146 u8 buf[2];
147
148 if (level < 0 || level >= MSI_LCD_LEVEL_MAX)
149 return -EINVAL;
150
151 buf[0] = 0x80;
152 buf[1] = (u8) (level*31);
153
154 return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf),
155 NULL, 0);
156}
157
158static int get_lcd_level(void)
159{
160 u8 wdata = 0, rdata;
161 int result;
162
163 result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
164 &rdata, 1);
165 if (result < 0)
166 return result;
167
168 return (int) rdata / 31;
169}
170
171static int get_auto_brightness(void)
172{
173 u8 wdata = 4, rdata;
174 int result;
175
176 result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
177 &rdata, 1);
178 if (result < 0)
179 return result;
180
181 return !!(rdata & 8);
182}
183
184static int set_auto_brightness(int enable)
185{
186 u8 wdata[2], rdata;
187 int result;
188
189 wdata[0] = 4;
190
191 result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1,
192 &rdata, 1);
193 if (result < 0)
194 return result;
195
196 wdata[0] = 0x84;
197 wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0);
198
199 return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2,
200 NULL, 0);
201}
202
203static ssize_t set_device_state(const char *buf, size_t count, u8 mask)
204{
205 int status;
206 u8 wdata = 0, rdata;
207 int result;
208
209 if (sscanf(buf, "%i", &status) != 1 || (status < 0 || status > 1))
210 return -EINVAL;
211
212 if (quirks->ec_read_only)
213 return -EOPNOTSUPP;
214
215 /* read current device state */
216 result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
217 if (result < 0)
218 return result;
219
220 if (!!(rdata & mask) != status) {
221 /* reverse device bit */
222 if (rdata & mask)
223 wdata = rdata & ~mask;
224 else
225 wdata = rdata | mask;
226
227 result = ec_write(MSI_STANDARD_EC_COMMAND_ADDRESS, wdata);
228 if (result < 0)
229 return result;
230 }
231
232 return count;
233}
234
235static int get_wireless_state(int *wlan, int *bluetooth)
236{
237 u8 wdata = 0, rdata;
238 int result;
239
240 result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1);
241 if (result < 0)
242 return result;
243
244 if (wlan)
245 *wlan = !!(rdata & 8);
246
247 if (bluetooth)
248 *bluetooth = !!(rdata & 128);
249
250 return 0;
251}
252
253static int get_wireless_state_ec_standard(void)
254{
255 u8 rdata;
256 int result;
257
258 result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
259 if (result < 0)
260 return result;
261
262 wlan_s = !!(rdata & MSI_STANDARD_EC_WLAN_MASK);
263
264 bluetooth_s = !!(rdata & MSI_STANDARD_EC_BLUETOOTH_MASK);
265
266 threeg_s = !!(rdata & MSI_STANDARD_EC_3G_MASK);
267
268 return 0;
269}
270
271static int get_threeg_exists(void)
272{
273 u8 rdata;
274 int result;
275
276 result = ec_read(MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS, &rdata);
277 if (result < 0)
278 return result;
279
280 threeg_exists = !!(rdata & MSI_STANDARD_EC_3G_MASK);
281
282 return 0;
283}
284
285/* Backlight device stuff */
286
287static int bl_get_brightness(struct backlight_device *b)
288{
289 return get_lcd_level();
290}
291
292
293static int bl_update_status(struct backlight_device *b)
294{
295 return set_lcd_level(b->props.brightness);
296}
297
298static const struct backlight_ops msibl_ops = {
299 .get_brightness = bl_get_brightness,
300 .update_status = bl_update_status,
301};
302
303static struct backlight_device *msibl_device;
304
305/* Platform device */
306
307static ssize_t show_wlan(struct device *dev,
308 struct device_attribute *attr, char *buf)
309{
310
311 int ret, enabled = 0;
312
313 if (quirks->old_ec_model) {
314 ret = get_wireless_state(&enabled, NULL);
315 } else {
316 ret = get_wireless_state_ec_standard();
317 enabled = wlan_s;
318 }
319 if (ret < 0)
320 return ret;
321
322 return sprintf(buf, "%i\n", enabled);
323}
324
325static ssize_t store_wlan(struct device *dev,
326 struct device_attribute *attr, const char *buf, size_t count)
327{
328 return set_device_state(buf, count, MSI_STANDARD_EC_WLAN_MASK);
329}
330
331static ssize_t show_bluetooth(struct device *dev,
332 struct device_attribute *attr, char *buf)
333{
334
335 int ret, enabled = 0;
336
337 if (quirks->old_ec_model) {
338 ret = get_wireless_state(NULL, &enabled);
339 } else {
340 ret = get_wireless_state_ec_standard();
341 enabled = bluetooth_s;
342 }
343 if (ret < 0)
344 return ret;
345
346 return sprintf(buf, "%i\n", enabled);
347}
348
349static ssize_t store_bluetooth(struct device *dev,
350 struct device_attribute *attr, const char *buf, size_t count)
351{
352 return set_device_state(buf, count, MSI_STANDARD_EC_BLUETOOTH_MASK);
353}
354
355static ssize_t show_threeg(struct device *dev,
356 struct device_attribute *attr, char *buf)
357{
358
359 int ret;
360
361 /* old msi ec not support 3G */
362 if (quirks->old_ec_model)
363 return -ENODEV;
364
365 ret = get_wireless_state_ec_standard();
366 if (ret < 0)
367 return ret;
368
369 return sprintf(buf, "%i\n", threeg_s);
370}
371
372static ssize_t store_threeg(struct device *dev,
373 struct device_attribute *attr, const char *buf, size_t count)
374{
375 return set_device_state(buf, count, MSI_STANDARD_EC_3G_MASK);
376}
377
378static ssize_t show_lcd_level(struct device *dev,
379 struct device_attribute *attr, char *buf)
380{
381
382 int ret;
383
384 ret = get_lcd_level();
385 if (ret < 0)
386 return ret;
387
388 return sprintf(buf, "%i\n", ret);
389}
390
391static ssize_t store_lcd_level(struct device *dev,
392 struct device_attribute *attr, const char *buf, size_t count)
393{
394
395 int level, ret;
396
397 if (sscanf(buf, "%i", &level) != 1 ||
398 (level < 0 || level >= MSI_LCD_LEVEL_MAX))
399 return -EINVAL;
400
401 ret = set_lcd_level(level);
402 if (ret < 0)
403 return ret;
404
405 return count;
406}
407
408static ssize_t show_auto_brightness(struct device *dev,
409 struct device_attribute *attr, char *buf)
410{
411
412 int ret;
413
414 ret = get_auto_brightness();
415 if (ret < 0)
416 return ret;
417
418 return sprintf(buf, "%i\n", ret);
419}
420
421static ssize_t store_auto_brightness(struct device *dev,
422 struct device_attribute *attr, const char *buf, size_t count)
423{
424
425 int enable, ret;
426
427 if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
428 return -EINVAL;
429
430 ret = set_auto_brightness(enable);
431 if (ret < 0)
432 return ret;
433
434 return count;
435}
436
437static ssize_t show_touchpad(struct device *dev,
438 struct device_attribute *attr, char *buf)
439{
440
441 u8 rdata;
442 int result;
443
444 result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
445 if (result < 0)
446 return result;
447
448 return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TOUCHPAD_MASK));
449}
450
451static ssize_t show_turbo(struct device *dev,
452 struct device_attribute *attr, char *buf)
453{
454
455 u8 rdata;
456 int result;
457
458 result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
459 if (result < 0)
460 return result;
461
462 return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_TURBO_MASK));
463}
464
465static ssize_t show_eco(struct device *dev,
466 struct device_attribute *attr, char *buf)
467{
468
469 u8 rdata;
470 int result;
471
472 result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
473 if (result < 0)
474 return result;
475
476 return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_ECO_MASK));
477}
478
479static ssize_t show_turbo_cooldown(struct device *dev,
480 struct device_attribute *attr, char *buf)
481{
482
483 u8 rdata;
484 int result;
485
486 result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
487 if (result < 0)
488 return result;
489
490 return sprintf(buf, "%i\n", (!!(rdata & MSI_STANDARD_EC_TURBO_MASK)) |
491 (!!(rdata & MSI_STANDARD_EC_TURBO_COOLDOWN_MASK) << 1));
492}
493
494static ssize_t show_auto_fan(struct device *dev,
495 struct device_attribute *attr, char *buf)
496{
497
498 u8 rdata;
499 int result;
500
501 result = ec_read(MSI_STANDARD_EC_FAN_ADDRESS, &rdata);
502 if (result < 0)
503 return result;
504
505 return sprintf(buf, "%i\n", !!(rdata & MSI_STANDARD_EC_AUTOFAN_MASK));
506}
507
508static ssize_t store_auto_fan(struct device *dev,
509 struct device_attribute *attr, const char *buf, size_t count)
510{
511
512 int enable, result;
513
514 if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
515 return -EINVAL;
516
517 result = ec_write(MSI_STANDARD_EC_FAN_ADDRESS, enable);
518 if (result < 0)
519 return result;
520
521 return count;
522}
523
524static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
525static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness,
526 store_auto_brightness);
527static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
528static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
529static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
530static DEVICE_ATTR(touchpad, 0444, show_touchpad, NULL);
531static DEVICE_ATTR(turbo_mode, 0444, show_turbo, NULL);
532static DEVICE_ATTR(eco_mode, 0444, show_eco, NULL);
533static DEVICE_ATTR(turbo_cooldown, 0444, show_turbo_cooldown, NULL);
534static DEVICE_ATTR(auto_fan, 0644, show_auto_fan, store_auto_fan);
535
536static struct attribute *msipf_attributes[] = {
537 &dev_attr_bluetooth.attr,
538 &dev_attr_wlan.attr,
539 &dev_attr_touchpad.attr,
540 &dev_attr_turbo_mode.attr,
541 &dev_attr_eco_mode.attr,
542 &dev_attr_turbo_cooldown.attr,
543 &dev_attr_auto_fan.attr,
544 NULL
545};
546
547static struct attribute *msipf_old_attributes[] = {
548 &dev_attr_lcd_level.attr,
549 &dev_attr_auto_brightness.attr,
550 NULL
551};
552
553static const struct attribute_group msipf_attribute_group = {
554 .attrs = msipf_attributes
555};
556
557static const struct attribute_group msipf_old_attribute_group = {
558 .attrs = msipf_old_attributes
559};
560
561static struct platform_driver msipf_driver = {
562 .driver = {
563 .name = "msi-laptop-pf",
564 .pm = &msi_laptop_pm,
565 },
566};
567
568static struct platform_device *msipf_device;
569
570/* Initialization */
571
572static struct quirk_entry quirk_old_ec_model = {
573 .old_ec_model = true,
574};
575
576static struct quirk_entry quirk_load_scm_model = {
577 .load_scm_model = true,
578 .ec_delay = true,
579};
580
581static struct quirk_entry quirk_load_scm_ro_model = {
582 .load_scm_model = true,
583 .ec_read_only = true,
584};
585
586static int dmi_check_cb(const struct dmi_system_id *dmi)
587{
588 pr_info("Identified laptop model '%s'\n", dmi->ident);
589
590 quirks = dmi->driver_data;
591
592 return 1;
593}
594
595static const struct dmi_system_id msi_dmi_table[] __initconst = {
596 {
597 .ident = "MSI S270",
598 .matches = {
599 DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
600 DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
601 DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
602 DMI_MATCH(DMI_CHASSIS_VENDOR,
603 "MICRO-STAR INT'L CO.,LTD")
604 },
605 .driver_data = &quirk_old_ec_model,
606 .callback = dmi_check_cb
607 },
608 {
609 .ident = "MSI S271",
610 .matches = {
611 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
612 DMI_MATCH(DMI_PRODUCT_NAME, "MS-1058"),
613 DMI_MATCH(DMI_PRODUCT_VERSION, "0581"),
614 DMI_MATCH(DMI_BOARD_NAME, "MS-1058")
615 },
616 .driver_data = &quirk_old_ec_model,
617 .callback = dmi_check_cb
618 },
619 {
620 .ident = "MSI S420",
621 .matches = {
622 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
623 DMI_MATCH(DMI_PRODUCT_NAME, "MS-1412"),
624 DMI_MATCH(DMI_BOARD_VENDOR, "MSI"),
625 DMI_MATCH(DMI_BOARD_NAME, "MS-1412")
626 },
627 .driver_data = &quirk_old_ec_model,
628 .callback = dmi_check_cb
629 },
630 {
631 .ident = "Medion MD96100",
632 .matches = {
633 DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
634 DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
635 DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
636 DMI_MATCH(DMI_CHASSIS_VENDOR,
637 "MICRO-STAR INT'L CO.,LTD")
638 },
639 .driver_data = &quirk_old_ec_model,
640 .callback = dmi_check_cb
641 },
642 {
643 .ident = "MSI N034",
644 .matches = {
645 DMI_MATCH(DMI_SYS_VENDOR,
646 "MICRO-STAR INTERNATIONAL CO., LTD"),
647 DMI_MATCH(DMI_PRODUCT_NAME, "MS-N034"),
648 DMI_MATCH(DMI_CHASSIS_VENDOR,
649 "MICRO-STAR INTERNATIONAL CO., LTD")
650 },
651 .driver_data = &quirk_load_scm_model,
652 .callback = dmi_check_cb
653 },
654 {
655 .ident = "MSI N051",
656 .matches = {
657 DMI_MATCH(DMI_SYS_VENDOR,
658 "MICRO-STAR INTERNATIONAL CO., LTD"),
659 DMI_MATCH(DMI_PRODUCT_NAME, "MS-N051"),
660 DMI_MATCH(DMI_CHASSIS_VENDOR,
661 "MICRO-STAR INTERNATIONAL CO., LTD")
662 },
663 .driver_data = &quirk_load_scm_model,
664 .callback = dmi_check_cb
665 },
666 {
667 .ident = "MSI N014",
668 .matches = {
669 DMI_MATCH(DMI_SYS_VENDOR,
670 "MICRO-STAR INTERNATIONAL CO., LTD"),
671 DMI_MATCH(DMI_PRODUCT_NAME, "MS-N014"),
672 },
673 .driver_data = &quirk_load_scm_model,
674 .callback = dmi_check_cb
675 },
676 {
677 .ident = "MSI CR620",
678 .matches = {
679 DMI_MATCH(DMI_SYS_VENDOR,
680 "Micro-Star International"),
681 DMI_MATCH(DMI_PRODUCT_NAME, "CR620"),
682 },
683 .driver_data = &quirk_load_scm_model,
684 .callback = dmi_check_cb
685 },
686 {
687 .ident = "MSI U270",
688 .matches = {
689 DMI_MATCH(DMI_SYS_VENDOR,
690 "Micro-Star International Co., Ltd."),
691 DMI_MATCH(DMI_PRODUCT_NAME, "U270 series"),
692 },
693 .driver_data = &quirk_load_scm_model,
694 .callback = dmi_check_cb
695 },
696 {
697 .ident = "MSI U90/U100",
698 .matches = {
699 DMI_MATCH(DMI_SYS_VENDOR,
700 "MICRO-STAR INTERNATIONAL CO., LTD"),
701 DMI_MATCH(DMI_PRODUCT_NAME, "U90/U100"),
702 },
703 .driver_data = &quirk_load_scm_ro_model,
704 .callback = dmi_check_cb
705 },
706 { }
707};
708
709static int rfkill_bluetooth_set(void *data, bool blocked)
710{
711 /* Do something with blocked...*/
712 /*
713 * blocked == false is on
714 * blocked == true is off
715 */
716 int result = set_device_state(blocked ? "0" : "1", 0,
717 MSI_STANDARD_EC_BLUETOOTH_MASK);
718
719 return min(result, 0);
720}
721
722static int rfkill_wlan_set(void *data, bool blocked)
723{
724 int result = set_device_state(blocked ? "0" : "1", 0,
725 MSI_STANDARD_EC_WLAN_MASK);
726
727 return min(result, 0);
728}
729
730static int rfkill_threeg_set(void *data, bool blocked)
731{
732 int result = set_device_state(blocked ? "0" : "1", 0,
733 MSI_STANDARD_EC_3G_MASK);
734
735 return min(result, 0);
736}
737
738static const struct rfkill_ops rfkill_bluetooth_ops = {
739 .set_block = rfkill_bluetooth_set
740};
741
742static const struct rfkill_ops rfkill_wlan_ops = {
743 .set_block = rfkill_wlan_set
744};
745
746static const struct rfkill_ops rfkill_threeg_ops = {
747 .set_block = rfkill_threeg_set
748};
749
750static void rfkill_cleanup(void)
751{
752 if (rfk_bluetooth) {
753 rfkill_unregister(rfk_bluetooth);
754 rfkill_destroy(rfk_bluetooth);
755 }
756
757 if (rfk_threeg) {
758 rfkill_unregister(rfk_threeg);
759 rfkill_destroy(rfk_threeg);
760 }
761
762 if (rfk_wlan) {
763 rfkill_unregister(rfk_wlan);
764 rfkill_destroy(rfk_wlan);
765 }
766}
767
768static bool msi_rfkill_set_state(struct rfkill *rfkill, bool blocked)
769{
770 if (quirks->ec_read_only)
771 return rfkill_set_hw_state(rfkill, blocked);
772 else
773 return rfkill_set_sw_state(rfkill, blocked);
774}
775
776static void msi_update_rfkill(struct work_struct *ignored)
777{
778 get_wireless_state_ec_standard();
779
780 if (rfk_wlan)
781 msi_rfkill_set_state(rfk_wlan, !wlan_s);
782 if (rfk_bluetooth)
783 msi_rfkill_set_state(rfk_bluetooth, !bluetooth_s);
784 if (rfk_threeg)
785 msi_rfkill_set_state(rfk_threeg, !threeg_s);
786}
787static DECLARE_DELAYED_WORK(msi_rfkill_dwork, msi_update_rfkill);
788static DECLARE_WORK(msi_rfkill_work, msi_update_rfkill);
789
790static void msi_send_touchpad_key(struct work_struct *ignored)
791{
792 u8 rdata;
793 int result;
794
795 result = ec_read(MSI_STANDARD_EC_FUNCTIONS_ADDRESS, &rdata);
796 if (result < 0)
797 return;
798
799 sparse_keymap_report_event(msi_laptop_input_dev,
800 (rdata & MSI_STANDARD_EC_TOUCHPAD_MASK) ?
801 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF, 1, true);
802}
803static DECLARE_DELAYED_WORK(msi_touchpad_dwork, msi_send_touchpad_key);
804static DECLARE_WORK(msi_touchpad_work, msi_send_touchpad_key);
805
806static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
807 struct serio *port)
808{
809 static bool extended;
810
811 if (str & I8042_STR_AUXDATA)
812 return false;
813
814 /* 0x54 wwan, 0x62 bluetooth, 0x76 wlan, 0xE4 touchpad toggle*/
815 if (unlikely(data == 0xe0)) {
816 extended = true;
817 return false;
818 } else if (unlikely(extended)) {
819 extended = false;
820 switch (data) {
821 case 0xE4:
822 if (quirks->ec_delay) {
823 schedule_delayed_work(&msi_touchpad_dwork,
824 round_jiffies_relative(0.5 * HZ));
825 } else
826 schedule_work(&msi_touchpad_work);
827 break;
828 case 0x54:
829 case 0x62:
830 case 0x76:
831 if (quirks->ec_delay) {
832 schedule_delayed_work(&msi_rfkill_dwork,
833 round_jiffies_relative(0.5 * HZ));
834 } else
835 schedule_work(&msi_rfkill_work);
836 break;
837 }
838 }
839
840 return false;
841}
842
843static void msi_init_rfkill(struct work_struct *ignored)
844{
845 if (rfk_wlan) {
846 rfkill_set_sw_state(rfk_wlan, !wlan_s);
847 rfkill_wlan_set(NULL, !wlan_s);
848 }
849 if (rfk_bluetooth) {
850 rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
851 rfkill_bluetooth_set(NULL, !bluetooth_s);
852 }
853 if (rfk_threeg) {
854 rfkill_set_sw_state(rfk_threeg, !threeg_s);
855 rfkill_threeg_set(NULL, !threeg_s);
856 }
857}
858static DECLARE_DELAYED_WORK(msi_rfkill_init, msi_init_rfkill);
859
860static int rfkill_init(struct platform_device *sdev)
861{
862 /* add rfkill */
863 int retval;
864
865 /* keep the hardware wireless state */
866 get_wireless_state_ec_standard();
867
868 rfk_bluetooth = rfkill_alloc("msi-bluetooth", &sdev->dev,
869 RFKILL_TYPE_BLUETOOTH,
870 &rfkill_bluetooth_ops, NULL);
871 if (!rfk_bluetooth) {
872 retval = -ENOMEM;
873 goto err_bluetooth;
874 }
875 retval = rfkill_register(rfk_bluetooth);
876 if (retval)
877 goto err_bluetooth;
878
879 rfk_wlan = rfkill_alloc("msi-wlan", &sdev->dev, RFKILL_TYPE_WLAN,
880 &rfkill_wlan_ops, NULL);
881 if (!rfk_wlan) {
882 retval = -ENOMEM;
883 goto err_wlan;
884 }
885 retval = rfkill_register(rfk_wlan);
886 if (retval)
887 goto err_wlan;
888
889 if (threeg_exists) {
890 rfk_threeg = rfkill_alloc("msi-threeg", &sdev->dev,
891 RFKILL_TYPE_WWAN, &rfkill_threeg_ops, NULL);
892 if (!rfk_threeg) {
893 retval = -ENOMEM;
894 goto err_threeg;
895 }
896 retval = rfkill_register(rfk_threeg);
897 if (retval)
898 goto err_threeg;
899 }
900
901 /* schedule to run rfkill state initial */
902 if (quirks->ec_delay) {
903 schedule_delayed_work(&msi_rfkill_init,
904 round_jiffies_relative(1 * HZ));
905 } else
906 schedule_work(&msi_rfkill_work);
907
908 return 0;
909
910err_threeg:
911 rfkill_destroy(rfk_threeg);
912 if (rfk_wlan)
913 rfkill_unregister(rfk_wlan);
914err_wlan:
915 rfkill_destroy(rfk_wlan);
916 if (rfk_bluetooth)
917 rfkill_unregister(rfk_bluetooth);
918err_bluetooth:
919 rfkill_destroy(rfk_bluetooth);
920
921 return retval;
922}
923
924#ifdef CONFIG_PM_SLEEP
925static int msi_laptop_resume(struct device *device)
926{
927 u8 data;
928 int result;
929
930 if (!quirks->load_scm_model)
931 return 0;
932
933 /* set load SCM to disable hardware control by fn key */
934 result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
935 if (result < 0)
936 return result;
937
938 result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
939 data | MSI_STANDARD_EC_SCM_LOAD_MASK);
940 if (result < 0)
941 return result;
942
943 return 0;
944}
945#endif
946
947static int __init msi_laptop_input_setup(void)
948{
949 int err;
950
951 msi_laptop_input_dev = input_allocate_device();
952 if (!msi_laptop_input_dev)
953 return -ENOMEM;
954
955 msi_laptop_input_dev->name = "MSI Laptop hotkeys";
956 msi_laptop_input_dev->phys = "msi-laptop/input0";
957 msi_laptop_input_dev->id.bustype = BUS_HOST;
958
959 err = sparse_keymap_setup(msi_laptop_input_dev,
960 msi_laptop_keymap, NULL);
961 if (err)
962 goto err_free_dev;
963
964 err = input_register_device(msi_laptop_input_dev);
965 if (err)
966 goto err_free_dev;
967
968 return 0;
969
970err_free_dev:
971 input_free_device(msi_laptop_input_dev);
972 return err;
973}
974
975static int __init load_scm_model_init(struct platform_device *sdev)
976{
977 u8 data;
978 int result;
979
980 if (!quirks->ec_read_only) {
981 /* allow userland write sysfs file */
982 dev_attr_bluetooth.store = store_bluetooth;
983 dev_attr_wlan.store = store_wlan;
984 dev_attr_threeg.store = store_threeg;
985 dev_attr_bluetooth.attr.mode |= S_IWUSR;
986 dev_attr_wlan.attr.mode |= S_IWUSR;
987 dev_attr_threeg.attr.mode |= S_IWUSR;
988 }
989
990 /* disable hardware control by fn key */
991 result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
992 if (result < 0)
993 return result;
994
995 result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
996 data | MSI_STANDARD_EC_SCM_LOAD_MASK);
997 if (result < 0)
998 return result;
999
1000 /* initial rfkill */
1001 result = rfkill_init(sdev);
1002 if (result < 0)
1003 goto fail_rfkill;
1004
1005 /* setup input device */
1006 result = msi_laptop_input_setup();
1007 if (result)
1008 goto fail_input;
1009
1010 result = i8042_install_filter(msi_laptop_i8042_filter);
1011 if (result) {
1012 pr_err("Unable to install key filter\n");
1013 goto fail_filter;
1014 }
1015
1016 return 0;
1017
1018fail_filter:
1019 input_unregister_device(msi_laptop_input_dev);
1020
1021fail_input:
1022 rfkill_cleanup();
1023
1024fail_rfkill:
1025
1026 return result;
1027
1028}
1029
1030static int __init msi_init(void)
1031{
1032 int ret;
1033
1034 if (acpi_disabled)
1035 return -ENODEV;
1036
1037 dmi_check_system(msi_dmi_table);
1038 if (!quirks)
1039 /* quirks may be NULL if no match in DMI table */
1040 quirks = &quirk_load_scm_model;
1041 if (force)
1042 quirks = &quirk_old_ec_model;
1043
1044 if (!quirks->old_ec_model)
1045 get_threeg_exists();
1046
1047 if (auto_brightness < 0 || auto_brightness > 2)
1048 return -EINVAL;
1049
1050 /* Register backlight stuff */
1051
1052 if (quirks->old_ec_model ||
1053 acpi_video_get_backlight_type() == acpi_backlight_vendor) {
1054 struct backlight_properties props;
1055 memset(&props, 0, sizeof(struct backlight_properties));
1056 props.type = BACKLIGHT_PLATFORM;
1057 props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
1058 msibl_device = backlight_device_register("msi-laptop-bl", NULL,
1059 NULL, &msibl_ops,
1060 &props);
1061 if (IS_ERR(msibl_device))
1062 return PTR_ERR(msibl_device);
1063 }
1064
1065 ret = platform_driver_register(&msipf_driver);
1066 if (ret)
1067 goto fail_backlight;
1068
1069 /* Register platform stuff */
1070
1071 msipf_device = platform_device_alloc("msi-laptop-pf", -1);
1072 if (!msipf_device) {
1073 ret = -ENOMEM;
1074 goto fail_platform_driver;
1075 }
1076
1077 ret = platform_device_add(msipf_device);
1078 if (ret)
1079 goto fail_device_add;
1080
1081 if (quirks->load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
1082 ret = -EINVAL;
1083 goto fail_scm_model_init;
1084 }
1085
1086 ret = sysfs_create_group(&msipf_device->dev.kobj,
1087 &msipf_attribute_group);
1088 if (ret)
1089 goto fail_create_group;
1090
1091 if (!quirks->old_ec_model) {
1092 if (threeg_exists)
1093 ret = device_create_file(&msipf_device->dev,
1094 &dev_attr_threeg);
1095 if (ret)
1096 goto fail_create_attr;
1097 } else {
1098 ret = sysfs_create_group(&msipf_device->dev.kobj,
1099 &msipf_old_attribute_group);
1100 if (ret)
1101 goto fail_create_attr;
1102
1103 /* Disable automatic brightness control by default because
1104 * this module was probably loaded to do brightness control in
1105 * software. */
1106
1107 if (auto_brightness != 2)
1108 set_auto_brightness(auto_brightness);
1109 }
1110
1111 pr_info("driver " MSI_DRIVER_VERSION " successfully loaded\n");
1112
1113 return 0;
1114
1115fail_create_attr:
1116 sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1117fail_create_group:
1118 if (quirks->load_scm_model) {
1119 i8042_remove_filter(msi_laptop_i8042_filter);
1120 cancel_delayed_work_sync(&msi_rfkill_dwork);
1121 cancel_work_sync(&msi_rfkill_work);
1122 rfkill_cleanup();
1123 }
1124fail_scm_model_init:
1125 platform_device_del(msipf_device);
1126fail_device_add:
1127 platform_device_put(msipf_device);
1128fail_platform_driver:
1129 platform_driver_unregister(&msipf_driver);
1130fail_backlight:
1131 backlight_device_unregister(msibl_device);
1132
1133 return ret;
1134}
1135
1136static void __exit msi_cleanup(void)
1137{
1138 if (quirks->load_scm_model) {
1139 i8042_remove_filter(msi_laptop_i8042_filter);
1140 input_unregister_device(msi_laptop_input_dev);
1141 cancel_delayed_work_sync(&msi_rfkill_dwork);
1142 cancel_work_sync(&msi_rfkill_work);
1143 rfkill_cleanup();
1144 }
1145
1146 sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
1147 if (!quirks->old_ec_model && threeg_exists)
1148 device_remove_file(&msipf_device->dev, &dev_attr_threeg);
1149 platform_device_unregister(msipf_device);
1150 platform_driver_unregister(&msipf_driver);
1151 backlight_device_unregister(msibl_device);
1152
1153 if (quirks->old_ec_model) {
1154 /* Enable automatic brightness control again */
1155 if (auto_brightness != 2)
1156 set_auto_brightness(1);
1157 }
1158
1159 pr_info("driver unloaded\n");
1160}
1161
1162module_init(msi_init);
1163module_exit(msi_cleanup);
1164
1165MODULE_AUTHOR("Lennart Poettering");
1166MODULE_DESCRIPTION("MSI Laptop Support");
1167MODULE_VERSION(MSI_DRIVER_VERSION);
1168MODULE_LICENSE("GPL");
1169
1170MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1171MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
1172MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1173MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1174MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
1175MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N051:*");
1176MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N014:*");
1177MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnCR620:*");
1178MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnU270series:*");
1179MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnU90/U100:*");