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/drivers/platform/x86/msi-laptop.c

https://bitbucket.org/cyanogenmod/android_kernel_asus_tf300t
C | 1008 lines | 723 code | 197 blank | 88 comment | 105 complexity | b54b9a23e0f4264503e815289d36b45f MD5 | raw file
Possible License(s): LGPL-2.0, AGPL-1.0, GPL-2.0
   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 int 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:*");