tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
68#define MSI_DRIVER_VERSION "0.5"
69
70#define MSI_LCD_LEVEL_MAX 9
71
72#define MSI_EC_COMMAND_WIRELESS 0x10
73#define MSI_EC_COMMAND_LCD_LEVEL 0x11
74
75#define MSI_STANDARD_EC_COMMAND_ADDRESS 0x2e
76#define MSI_STANDARD_EC_BLUETOOTH_MASK (1 << 0)
77#define MSI_STANDARD_EC_WEBCAM_MASK (1 << 1)
78#define MSI_STANDARD_EC_WLAN_MASK (1 << 3)
79#define MSI_STANDARD_EC_3G_MASK (1 << 4)
80
81/* For set SCM load flag to disable BIOS fn key */
82#define MSI_STANDARD_EC_SCM_LOAD_ADDRESS 0x2d
83#define MSI_STANDARD_EC_SCM_LOAD_MASK (1 << 0)
84
85#define MSI_STANDARD_EC_TOUCHPAD_ADDRESS 0xe4
86#define MSI_STANDARD_EC_TOUCHPAD_MASK (1 << 4)
87
88static int msi_laptop_resume(struct platform_device *device);
89
90#define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS 0x2f
91
92static bool force;
93module_param(force, bool, 0);
94MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
95
96static int auto_brightness;
97module_param(auto_brightness, int, 0);
98MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
99
100static const struct key_entry msi_laptop_keymap[] = {
101 {KE_KEY, KEY_TOUCHPAD_ON, {KEY_TOUCHPAD_ON} }, /* Touch Pad On */
102 {KE_KEY, KEY_TOUCHPAD_OFF, {KEY_TOUCHPAD_OFF} },/* Touch Pad On */
103 {KE_END, 0}
104};
105
106static struct input_dev *msi_laptop_input_dev;
107
108static bool old_ec_model;
109static int wlan_s, bluetooth_s, threeg_s;
110static int threeg_exists;
111
112/* Some MSI 3G netbook only have one fn key to control Wlan/Bluetooth/3G,
113 * those netbook will load the SCM (windows app) to disable the original
114 * Wlan/Bluetooth control by BIOS when user press fn key, then control
115 * Wlan/Bluetooth/3G by SCM (software control by OS). Without SCM, user
116 * cann't on/off 3G module on those 3G netbook.
117 * On Linux, msi-laptop driver will do the same thing to disable the
118 * original BIOS control, then might need use HAL or other userland
119 * application to do the software control that simulate with SCM.
120 * e.g. MSI N034 netbook
121 */
122static bool load_scm_model;
123static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg;
124
125/* Hardware access */
126
127static int set_lcd_level(int level)
128{
129 u8 buf[2];
130
131 if (level < 0 || level >= MSI_LCD_LEVEL_MAX)
132 return -EINVAL;
133
134 buf[0] = 0x80;
135 buf[1] = (u8) (level*31);
136
137 return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf),
138 NULL, 0);
139}
140
141static int get_lcd_level(void)
142{
143 u8 wdata = 0, rdata;
144 int result;
145
146 result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
147 &rdata, 1);
148 if (result < 0)
149 return result;
150
151 return (int) rdata / 31;
152}
153
154static int get_auto_brightness(void)
155{
156 u8 wdata = 4, rdata;
157 int result;
158
159 result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
160 &rdata, 1);
161 if (result < 0)
162 return result;
163
164 return !!(rdata & 8);
165}
166
167static int set_auto_brightness(int enable)
168{
169 u8 wdata[2], rdata;
170 int result;
171
172 wdata[0] = 4;
173
174 result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1,
175 &rdata, 1);
176 if (result < 0)
177 return result;
178
179 wdata[0] = 0x84;
180 wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0);
181
182 return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2,
183 NULL, 0);
184}
185
186static ssize_t set_device_state(const char *buf, size_t count, u8 mask)
187{
188 int status;
189 u8 wdata = 0, rdata;
190 int result;
191
192 if (sscanf(buf, "%i", &status) != 1 || (status < 0 || status > 1))
193 return -EINVAL;
194
195 /* read current device state */
196 result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
197 if (result < 0)
198 return -EINVAL;
199
200 if (!!(rdata & mask) != status) {
201 /* reverse device bit */
202 if (rdata & mask)
203 wdata = rdata & ~mask;
204 else
205 wdata = rdata | mask;
206
207 result = ec_write(MSI_STANDARD_EC_COMMAND_ADDRESS, wdata);
208 if (result < 0)
209 return -EINVAL;
210 }
211
212 return count;
213}
214
215static int get_wireless_state(int *wlan, int *bluetooth)
216{
217 u8 wdata = 0, rdata;
218 int result;
219
220 result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1);
221 if (result < 0)
222 return -1;
223
224 if (wlan)
225 *wlan = !!(rdata & 8);
226
227 if (bluetooth)
228 *bluetooth = !!(rdata & 128);
229
230 return 0;
231}
232
233static int get_wireless_state_ec_standard(void)
234{
235 u8 rdata;
236 int result;
237
238 result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
239 if (result < 0)
240 return -1;
241
242 wlan_s = !!(rdata & MSI_STANDARD_EC_WLAN_MASK);
243
244 bluetooth_s = !!(rdata & MSI_STANDARD_EC_BLUETOOTH_MASK);
245
246 threeg_s = !!(rdata & MSI_STANDARD_EC_3G_MASK);
247
248 return 0;
249}
250
251static int get_threeg_exists(void)
252{
253 u8 rdata;
254 int result;
255
256 result = ec_read(MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS, &rdata);
257 if (result < 0)
258 return -1;
259
260 threeg_exists = !!(rdata & MSI_STANDARD_EC_3G_MASK);
261
262 return 0;
263}
264
265/* Backlight device stuff */
266
267static int bl_get_brightness(struct backlight_device *b)
268{
269 return get_lcd_level();
270}
271
272
273static int bl_update_status(struct backlight_device *b)
274{
275 return set_lcd_level(b->props.brightness);
276}
277
278static const struct backlight_ops msibl_ops = {
279 .get_brightness = bl_get_brightness,
280 .update_status = bl_update_status,
281};
282
283static struct backlight_device *msibl_device;
284
285/* Platform device */
286
287static ssize_t show_wlan(struct device *dev,
288 struct device_attribute *attr, char *buf)
289{
290
291 int ret, enabled;
292
293 if (old_ec_model) {
294 ret = get_wireless_state(&enabled, NULL);
295 } else {
296 ret = get_wireless_state_ec_standard();
297 enabled = wlan_s;
298 }
299 if (ret < 0)
300 return ret;
301
302 return sprintf(buf, "%i\n", enabled);
303}
304
305static ssize_t store_wlan(struct device *dev,
306 struct device_attribute *attr, const char *buf, size_t count)
307{
308 return set_device_state(buf, count, MSI_STANDARD_EC_WLAN_MASK);
309}
310
311static ssize_t show_bluetooth(struct device *dev,
312 struct device_attribute *attr, char *buf)
313{
314
315 int ret, enabled;
316
317 if (old_ec_model) {
318 ret = get_wireless_state(NULL, &enabled);
319 } else {
320 ret = get_wireless_state_ec_standard();
321 enabled = bluetooth_s;
322 }
323 if (ret < 0)
324 return ret;
325
326 return sprintf(buf, "%i\n", enabled);
327}
328
329static ssize_t store_bluetooth(struct device *dev,
330 struct device_attribute *attr, const char *buf, size_t count)
331{
332 return set_device_state(buf, count, MSI_STANDARD_EC_BLUETOOTH_MASK);
333}
334
335static ssize_t show_threeg(struct device *dev,
336 struct device_attribute *attr, char *buf)
337{
338
339 int ret;
340
341 /* old msi ec not support 3G */
342 if (old_ec_model)
343 return -1;
344
345 ret = get_wireless_state_ec_standard();
346 if (ret < 0)
347 return ret;
348
349 return sprintf(buf, "%i\n", threeg_s);
350}
351
352static ssize_t store_threeg(struct device *dev,
353 struct device_attribute *attr, const char *buf, size_t count)
354{
355 return set_device_state(buf, count, MSI_STANDARD_EC_3G_MASK);
356}
357
358static ssize_t show_lcd_level(struct device *dev,
359 struct device_attribute *attr, char *buf)
360{
361
362 int ret;
363
364 ret = get_lcd_level();
365 if (ret < 0)
366 return ret;
367
368 return sprintf(buf, "%i\n", ret);
369}
370
371static ssize_t store_lcd_level(struct device *dev,
372 struct device_attribute *attr, const char *buf, size_t count)
373{
374
375 int level, ret;
376
377 if (sscanf(buf, "%i", &level) != 1 ||
378 (level < 0 || level >= MSI_LCD_LEVEL_MAX))
379 return -EINVAL;
380
381 ret = set_lcd_level(level);
382 if (ret < 0)
383 return ret;
384
385 return count;
386}
387
388static ssize_t show_auto_brightness(struct device *dev,
389 struct device_attribute *attr, char *buf)
390{
391
392 int ret;
393
394 ret = get_auto_brightness();
395 if (ret < 0)
396 return ret;
397
398 return sprintf(buf, "%i\n", ret);
399}
400
401static ssize_t store_auto_brightness(struct device *dev,
402 struct device_attribute *attr, const char *buf, size_t count)
403{
404
405 int enable, ret;
406
407 if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
408 return -EINVAL;
409
410 ret = set_auto_brightness(enable);
411 if (ret < 0)
412 return ret;
413
414 return count;
415}
416
417static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
418static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness,
419 store_auto_brightness);
420static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
421static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
422static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
423
424static struct attribute *msipf_attributes[] = {
425 &dev_attr_lcd_level.attr,
426 &dev_attr_auto_brightness.attr,
427 &dev_attr_bluetooth.attr,
428 &dev_attr_wlan.attr,
429 NULL
430};
431
432static struct attribute_group msipf_attribute_group = {
433 .attrs = msipf_attributes
434};
435
436static struct platform_driver msipf_driver = {
437 .driver = {
438 .name = "msi-laptop-pf",
439 .owner = THIS_MODULE,
440 },
441 .resume = msi_laptop_resume,
442};
443
444static struct platform_device *msipf_device;
445
446/* Initialization */
447
448static int dmi_check_cb(const struct dmi_system_id *id)
449{
450 pr_info("Identified laptop model '%s'\n", id->ident);
451 return 1;
452}
453
454static struct dmi_system_id __initdata msi_dmi_table[] = {
455 {
456 .ident = "MSI S270",
457 .matches = {
458 DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
459 DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
460 DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
461 DMI_MATCH(DMI_CHASSIS_VENDOR,
462 "MICRO-STAR INT'L CO.,LTD")
463 },
464 .callback = dmi_check_cb
465 },
466 {
467 .ident = "MSI S271",
468 .matches = {
469 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
470 DMI_MATCH(DMI_PRODUCT_NAME, "MS-1058"),
471 DMI_MATCH(DMI_PRODUCT_VERSION, "0581"),
472 DMI_MATCH(DMI_BOARD_NAME, "MS-1058")
473 },
474 .callback = dmi_check_cb
475 },
476 {
477 .ident = "MSI S420",
478 .matches = {
479 DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
480 DMI_MATCH(DMI_PRODUCT_NAME, "MS-1412"),
481 DMI_MATCH(DMI_BOARD_VENDOR, "MSI"),
482 DMI_MATCH(DMI_BOARD_NAME, "MS-1412")
483 },
484 .callback = dmi_check_cb
485 },
486 {
487 .ident = "Medion MD96100",
488 .matches = {
489 DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
490 DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
491 DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
492 DMI_MATCH(DMI_CHASSIS_VENDOR,
493 "MICRO-STAR INT'L CO.,LTD")
494 },
495 .callback = dmi_check_cb
496 },
497 { }
498};
499
500static struct dmi_system_id __initdata msi_load_scm_models_dmi_table[] = {
501 {
502 .ident = "MSI N034",
503 .matches = {
504 DMI_MATCH(DMI_SYS_VENDOR,
505 "MICRO-STAR INTERNATIONAL CO., LTD"),
506 DMI_MATCH(DMI_PRODUCT_NAME, "MS-N034"),
507 DMI_MATCH(DMI_CHASSIS_VENDOR,
508 "MICRO-STAR INTERNATIONAL CO., LTD")
509 },
510 .callback = dmi_check_cb
511 },
512 {
513 .ident = "MSI N051",
514 .matches = {
515 DMI_MATCH(DMI_SYS_VENDOR,
516 "MICRO-STAR INTERNATIONAL CO., LTD"),
517 DMI_MATCH(DMI_PRODUCT_NAME, "MS-N051"),
518 DMI_MATCH(DMI_CHASSIS_VENDOR,
519 "MICRO-STAR INTERNATIONAL CO., LTD")
520 },
521 .callback = dmi_check_cb
522 },
523 {
524 .ident = "MSI N014",
525 .matches = {
526 DMI_MATCH(DMI_SYS_VENDOR,
527 "MICRO-STAR INTERNATIONAL CO., LTD"),
528 DMI_MATCH(DMI_PRODUCT_NAME, "MS-N014"),
529 },
530 .callback = dmi_check_cb
531 },
532 {
533 .ident = "MSI CR620",
534 .matches = {
535 DMI_MATCH(DMI_SYS_VENDOR,
536 "Micro-Star International"),
537 DMI_MATCH(DMI_PRODUCT_NAME, "CR620"),
538 },
539 .callback = dmi_check_cb
540 },
541 {
542 .ident = "MSI U270",
543 .matches = {
544 DMI_MATCH(DMI_SYS_VENDOR,
545 "Micro-Star International Co., Ltd."),
546 DMI_MATCH(DMI_PRODUCT_NAME, "U270 series"),
547 },
548 .callback = dmi_check_cb
549 },
550 { }
551};
552
553static int rfkill_bluetooth_set(void *data, bool blocked)
554{
555 /* Do something with blocked...*/
556 /*
557 * blocked == false is on
558 * blocked == true is off
559 */
560 if (blocked)
561 set_device_state("0", 0, MSI_STANDARD_EC_BLUETOOTH_MASK);
562 else
563 set_device_state("1", 0, MSI_STANDARD_EC_BLUETOOTH_MASK);
564
565 return 0;
566}
567
568static int rfkill_wlan_set(void *data, bool blocked)
569{
570 if (blocked)
571 set_device_state("0", 0, MSI_STANDARD_EC_WLAN_MASK);
572 else
573 set_device_state("1", 0, MSI_STANDARD_EC_WLAN_MASK);
574
575 return 0;
576}
577
578static int rfkill_threeg_set(void *data, bool blocked)
579{
580 if (blocked)
581 set_device_state("0", 0, MSI_STANDARD_EC_3G_MASK);
582 else
583 set_device_state("1", 0, MSI_STANDARD_EC_3G_MASK);
584
585 return 0;
586}
587
588static const struct rfkill_ops rfkill_bluetooth_ops = {
589 .set_block = rfkill_bluetooth_set
590};
591
592static const struct rfkill_ops rfkill_wlan_ops = {
593 .set_block = rfkill_wlan_set
594};
595
596static const struct rfkill_ops rfkill_threeg_ops = {
597 .set_block = rfkill_threeg_set
598};
599
600static void rfkill_cleanup(void)
601{
602 if (rfk_bluetooth) {
603 rfkill_unregister(rfk_bluetooth);
604 rfkill_destroy(rfk_bluetooth);
605 }
606
607 if (rfk_threeg) {
608 rfkill_unregister(rfk_threeg);
609 rfkill_destroy(rfk_threeg);
610 }
611
612 if (rfk_wlan) {
613 rfkill_unregister(rfk_wlan);
614 rfkill_destroy(rfk_wlan);
615 }
616}
617
618static void msi_update_rfkill(struct work_struct *ignored)
619{
620 get_wireless_state_ec_standard();
621
622 if (rfk_wlan)
623 rfkill_set_sw_state(rfk_wlan, !wlan_s);
624 if (rfk_bluetooth)
625 rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
626 if (rfk_threeg)
627 rfkill_set_sw_state(rfk_threeg, !threeg_s);
628}
629static DECLARE_DELAYED_WORK(msi_rfkill_work, msi_update_rfkill);
630
631static void msi_send_touchpad_key(struct work_struct *ignored)
632{
633 u8 rdata;
634 int result;
635
636 result = ec_read(MSI_STANDARD_EC_TOUCHPAD_ADDRESS, &rdata);
637 if (result < 0)
638 return;
639
640 sparse_keymap_report_event(msi_laptop_input_dev,
641 (rdata & MSI_STANDARD_EC_TOUCHPAD_MASK) ?
642 KEY_TOUCHPAD_ON : KEY_TOUCHPAD_OFF, 1, true);
643}
644static DECLARE_DELAYED_WORK(msi_touchpad_work, msi_send_touchpad_key);
645
646static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
647 struct serio *port)
648{
649 static bool extended;
650
651 if (str & 0x20)
652 return false;
653
654 /* 0x54 wwan, 0x62 bluetooth, 0x76 wlan, 0xE4 touchpad toggle*/
655 if (unlikely(data == 0xe0)) {
656 extended = true;
657 return false;
658 } else if (unlikely(extended)) {
659 extended = false;
660 switch (data) {
661 case 0xE4:
662 schedule_delayed_work(&msi_touchpad_work,
663 round_jiffies_relative(0.5 * HZ));
664 break;
665 case 0x54:
666 case 0x62:
667 case 0x76:
668 schedule_delayed_work(&msi_rfkill_work,
669 round_jiffies_relative(0.5 * HZ));
670 break;
671 }
672 }
673
674 return false;
675}
676
677static void msi_init_rfkill(struct work_struct *ignored)
678{
679 if (rfk_wlan) {
680 rfkill_set_sw_state(rfk_wlan, !wlan_s);
681 rfkill_wlan_set(NULL, !wlan_s);
682 }
683 if (rfk_bluetooth) {
684 rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
685 rfkill_bluetooth_set(NULL, !bluetooth_s);
686 }
687 if (rfk_threeg) {
688 rfkill_set_sw_state(rfk_threeg, !threeg_s);
689 rfkill_threeg_set(NULL, !threeg_s);
690 }
691}
692static DECLARE_DELAYED_WORK(msi_rfkill_init, msi_init_rfkill);
693
694static int rfkill_init(struct platform_device *sdev)
695{
696 /* add rfkill */
697 int retval;
698
699 /* keep the hardware wireless state */
700 get_wireless_state_ec_standard();
701
702 rfk_bluetooth = rfkill_alloc("msi-bluetooth", &sdev->dev,
703 RFKILL_TYPE_BLUETOOTH,
704 &rfkill_bluetooth_ops, NULL);
705 if (!rfk_bluetooth) {
706 retval = -ENOMEM;
707 goto err_bluetooth;
708 }
709 retval = rfkill_register(rfk_bluetooth);
710 if (retval)
711 goto err_bluetooth;
712
713 rfk_wlan = rfkill_alloc("msi-wlan", &sdev->dev, RFKILL_TYPE_WLAN,
714 &rfkill_wlan_ops, NULL);
715 if (!rfk_wlan) {
716 retval = -ENOMEM;
717 goto err_wlan;
718 }
719 retval = rfkill_register(rfk_wlan);
720 if (retval)
721 goto err_wlan;
722
723 if (threeg_exists) {
724 rfk_threeg = rfkill_alloc("msi-threeg", &sdev->dev,
725 RFKILL_TYPE_WWAN, &rfkill_threeg_ops, NULL);
726 if (!rfk_threeg) {
727 retval = -ENOMEM;
728 goto err_threeg;
729 }
730 retval = rfkill_register(rfk_threeg);
731 if (retval)
732 goto err_threeg;
733 }
734
735 /* schedule to run rfkill state initial */
736 schedule_delayed_work(&msi_rfkill_init,
737 round_jiffies_relative(1 * HZ));
738
739 return 0;
740
741err_threeg:
742 rfkill_destroy(rfk_threeg);
743 if (rfk_wlan)
744 rfkill_unregister(rfk_wlan);
745err_wlan:
746 rfkill_destroy(rfk_wlan);
747 if (rfk_bluetooth)
748 rfkill_unregister(rfk_bluetooth);
749err_bluetooth:
750 rfkill_destroy(rfk_bluetooth);
751
752 return retval;
753}
754
755static int msi_laptop_resume(struct platform_device *device)
756{
757 u8 data;
758 int result;
759
760 if (!load_scm_model)
761 return 0;
762
763 /* set load SCM to disable hardware control by fn key */
764 result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
765 if (result < 0)
766 return result;
767
768 result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
769 data | MSI_STANDARD_EC_SCM_LOAD_MASK);
770 if (result < 0)
771 return result;
772
773 return 0;
774}
775
776static int __init msi_laptop_input_setup(void)
777{
778 int err;
779
780 msi_laptop_input_dev = input_allocate_device();
781 if (!msi_laptop_input_dev)
782 return -ENOMEM;
783
784 msi_laptop_input_dev->name = "MSI Laptop hotkeys";
785 msi_laptop_input_dev->phys = "msi-laptop/input0";
786 msi_laptop_input_dev->id.bustype = BUS_HOST;
787
788 err = sparse_keymap_setup(msi_laptop_input_dev,
789 msi_laptop_keymap, NULL);
790 if (err)
791 goto err_free_dev;
792
793 err = input_register_device(msi_laptop_input_dev);
794 if (err)
795 goto err_free_keymap;
796
797 return 0;
798
799err_free_keymap:
800 sparse_keymap_free(msi_laptop_input_dev);
801err_free_dev:
802 input_free_device(msi_laptop_input_dev);
803 return err;
804}
805
806static void msi_laptop_input_destroy(void)
807{
808 sparse_keymap_free(msi_laptop_input_dev);
809 input_unregister_device(msi_laptop_input_dev);
810}
811
812static int __init load_scm_model_init(struct platform_device *sdev)
813{
814 u8 data;
815 int result;
816
817 /* allow userland write sysfs file */
818 dev_attr_bluetooth.store = store_bluetooth;
819 dev_attr_wlan.store = store_wlan;
820 dev_attr_threeg.store = store_threeg;
821 dev_attr_bluetooth.attr.mode |= S_IWUSR;
822 dev_attr_wlan.attr.mode |= S_IWUSR;
823 dev_attr_threeg.attr.mode |= S_IWUSR;
824
825 /* disable hardware control by fn key */
826 result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
827 if (result < 0)
828 return result;
829
830 result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
831 data | MSI_STANDARD_EC_SCM_LOAD_MASK);
832 if (result < 0)
833 return result;
834
835 /* initial rfkill */
836 result = rfkill_init(sdev);
837 if (result < 0)
838 goto fail_rfkill;
839
840 /* setup input device */
841 result = msi_laptop_input_setup();
842 if (result)
843 goto fail_input;
844
845 result = i8042_install_filter(msi_laptop_i8042_filter);
846 if (result) {
847 pr_err("Unable to install key filter\n");
848 goto fail_filter;
849 }
850
851 return 0;
852
853fail_filter:
854 msi_laptop_input_destroy();
855
856fail_input:
857 rfkill_cleanup();
858
859fail_rfkill:
860
861 return result;
862
863}
864
865static int __init msi_init(void)
866{
867 int ret;
868
869 if (acpi_disabled)
870 return -ENODEV;
871
872 if (force || dmi_check_system(msi_dmi_table))
873 old_ec_model = 1;
874
875 if (!old_ec_model)
876 get_threeg_exists();
877
878 if (!old_ec_model && dmi_check_system(msi_load_scm_models_dmi_table))
879 load_scm_model = 1;
880
881 if (auto_brightness < 0 || auto_brightness > 2)
882 return -EINVAL;
883
884 /* Register backlight stuff */
885
886 if (acpi_video_backlight_support()) {
887 pr_info("Brightness ignored, must be controlled by ACPI video driver\n");
888 } else {
889 struct backlight_properties props;
890 memset(&props, 0, sizeof(struct backlight_properties));
891 props.type = BACKLIGHT_PLATFORM;
892 props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
893 msibl_device = backlight_device_register("msi-laptop-bl", NULL,
894 NULL, &msibl_ops,
895 &props);
896 if (IS_ERR(msibl_device))
897 return PTR_ERR(msibl_device);
898 }
899
900 ret = platform_driver_register(&msipf_driver);
901 if (ret)
902 goto fail_backlight;
903
904 /* Register platform stuff */
905
906 msipf_device = platform_device_alloc("msi-laptop-pf", -1);
907 if (!msipf_device) {
908 ret = -ENOMEM;
909 goto fail_platform_driver;
910 }
911
912 ret = platform_device_add(msipf_device);
913 if (ret)
914 goto fail_platform_device1;
915
916 if (load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
917 ret = -EINVAL;
918 goto fail_platform_device1;
919 }
920
921 ret = sysfs_create_group(&msipf_device->dev.kobj,
922 &msipf_attribute_group);
923 if (ret)
924 goto fail_platform_device2;
925
926 if (!old_ec_model) {
927 if (threeg_exists)
928 ret = device_create_file(&msipf_device->dev,
929 &dev_attr_threeg);
930 if (ret)
931 goto fail_platform_device2;
932 }
933
934 /* Disable automatic brightness control by default because
935 * this module was probably loaded to do brightness control in
936 * software. */
937
938 if (auto_brightness != 2)
939 set_auto_brightness(auto_brightness);
940
941 pr_info("driver " MSI_DRIVER_VERSION " successfully loaded\n");
942
943 return 0;
944
945fail_platform_device2:
946
947 if (load_scm_model) {
948 i8042_remove_filter(msi_laptop_i8042_filter);
949 cancel_delayed_work_sync(&msi_rfkill_work);
950 rfkill_cleanup();
951 }
952 platform_device_del(msipf_device);
953
954fail_platform_device1:
955
956 platform_device_put(msipf_device);
957
958fail_platform_driver:
959
960 platform_driver_unregister(&msipf_driver);
961
962fail_backlight:
963
964 backlight_device_unregister(msibl_device);
965
966 return ret;
967}
968
969static void __exit msi_cleanup(void)
970{
971 if (load_scm_model) {
972 i8042_remove_filter(msi_laptop_i8042_filter);
973 msi_laptop_input_destroy();
974 cancel_delayed_work_sync(&msi_rfkill_work);
975 rfkill_cleanup();
976 }
977
978 sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
979 if (!old_ec_model && threeg_exists)
980 device_remove_file(&msipf_device->dev, &dev_attr_threeg);
981 platform_device_unregister(msipf_device);
982 platform_driver_unregister(&msipf_driver);
983 backlight_device_unregister(msibl_device);
984
985 /* Enable automatic brightness control again */
986 if (auto_brightness != 2)
987 set_auto_brightness(1);
988
989 pr_info("driver unloaded\n");
990}
991
992module_init(msi_init);
993module_exit(msi_cleanup);
994
995MODULE_AUTHOR("Lennart Poettering");
996MODULE_DESCRIPTION("MSI Laptop Support");
997MODULE_VERSION(MSI_DRIVER_VERSION);
998MODULE_LICENSE("GPL");
999
1000MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1001MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
1002MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1003MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
1004MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
1005MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N051:*");
1006MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N014:*");
1007MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnCR620:*");
1008MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnU270series:*");