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

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/*-*-linux-c-*-*/
/*
Copyright (C) 2006 Lennart Poettering <mzxreary (at) 0pointer (dot) de>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
*/
/*
* msi-laptop.c - MSI S270 laptop support. This laptop is sold under
* various brands, including "Cytron/TCM/Medion/Tchibo MD96100".
*
* Driver also supports S271, S420 models.
*
* This driver exports a few files in /sys/devices/platform/msi-laptop-pf/:
*
* lcd_level - Screen brightness: contains a single integer in the
* range 0..8. (rw)
*
* auto_brightness - Enable automatic brightness control: contains
* either 0 or 1. If set to 1 the hardware adjusts the screen
* brightness automatically when the power cord is
* plugged/unplugged. (rw)
*
* wlan - WLAN subsystem enabled: contains either 0 or 1. (ro)
*
* bluetooth - Bluetooth subsystem enabled: contains either 0 or 1
* Please note that this file is constantly 0 if no Bluetooth
* hardware is available. (ro)
*
* In addition to these platform device attributes the driver
* registers itself in the Linux backlight control subsystem and is
* available to userspace under /sys/class/backlight/msi-laptop-bl/.
*
* This driver might work on other laptops produced by MSI. If you
* want to try it you can pass force=1 as argument to the module which
* will force it to load even when the DMI data doesn't identify the
* laptop as MSI S270. YMMV.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/acpi.h>
#include <linux/dmi.h>
#include <linux/backlight.h>
#include <linux/platform_device.h>
#include <linux/rfkill.h>
#include <linux/i8042.h>
#define MSI_DRIVER_VERSION "0.5"
#define MSI_LCD_LEVEL_MAX 9
#define MSI_EC_COMMAND_WIRELESS 0x10
#define MSI_EC_COMMAND_LCD_LEVEL 0x11
#define MSI_STANDARD_EC_COMMAND_ADDRESS 0x2e
#define MSI_STANDARD_EC_BLUETOOTH_MASK (1 << 0)
#define MSI_STANDARD_EC_WEBCAM_MASK (1 << 1)
#define MSI_STANDARD_EC_WLAN_MASK (1 << 3)
#define MSI_STANDARD_EC_3G_MASK (1 << 4)
/* For set SCM load flag to disable BIOS fn key */
#define MSI_STANDARD_EC_SCM_LOAD_ADDRESS 0x2d
#define MSI_STANDARD_EC_SCM_LOAD_MASK (1 << 0)
static int msi_laptop_resume(struct platform_device *device);
#define MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS 0x2f
static int force;
module_param(force, bool, 0);
MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
static int auto_brightness;
module_param(auto_brightness, int, 0);
MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disabled; 1: enabled; 2: don't touch)");
static bool old_ec_model;
static int wlan_s, bluetooth_s, threeg_s;
static int threeg_exists;
/* Some MSI 3G netbook only have one fn key to control Wlan/Bluetooth/3G,
* those netbook will load the SCM (windows app) to disable the original
* Wlan/Bluetooth control by BIOS when user press fn key, then control
* Wlan/Bluetooth/3G by SCM (software control by OS). Without SCM, user
* cann't on/off 3G module on those 3G netbook.
* On Linux, msi-laptop driver will do the same thing to disable the
* original BIOS control, then might need use HAL or other userland
* application to do the software control that simulate with SCM.
* e.g. MSI N034 netbook
*/
static bool load_scm_model;
static struct rfkill *rfk_wlan, *rfk_bluetooth, *rfk_threeg;
/* Hardware access */
static int set_lcd_level(int level)
{
u8 buf[2];
if (level < 0 || level >= MSI_LCD_LEVEL_MAX)
return -EINVAL;
buf[0] = 0x80;
buf[1] = (u8) (level*31);
return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, buf, sizeof(buf),
NULL, 0, 1);
}
static int get_lcd_level(void)
{
u8 wdata = 0, rdata;
int result;
result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
&rdata, 1, 1);
if (result < 0)
return result;
return (int) rdata / 31;
}
static int get_auto_brightness(void)
{
u8 wdata = 4, rdata;
int result;
result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, &wdata, 1,
&rdata, 1, 1);
if (result < 0)
return result;
return !!(rdata & 8);
}
static int set_auto_brightness(int enable)
{
u8 wdata[2], rdata;
int result;
wdata[0] = 4;
result = ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 1,
&rdata, 1, 1);
if (result < 0)
return result;
wdata[0] = 0x84;
wdata[1] = (rdata & 0xF7) | (enable ? 8 : 0);
return ec_transaction(MSI_EC_COMMAND_LCD_LEVEL, wdata, 2,
NULL, 0, 1);
}
static ssize_t set_device_state(const char *buf, size_t count, u8 mask)
{
int status;
u8 wdata = 0, rdata;
int result;
if (sscanf(buf, "%i", &status) != 1 || (status < 0 || status > 1))
return -EINVAL;
/* read current device state */
result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
if (result < 0)
return -EINVAL;
if (!!(rdata & mask) != status) {
/* reverse device bit */
if (rdata & mask)
wdata = rdata & ~mask;
else
wdata = rdata | mask;
result = ec_write(MSI_STANDARD_EC_COMMAND_ADDRESS, wdata);
if (result < 0)
return -EINVAL;
}
return count;
}
static int get_wireless_state(int *wlan, int *bluetooth)
{
u8 wdata = 0, rdata;
int result;
result = ec_transaction(MSI_EC_COMMAND_WIRELESS, &wdata, 1, &rdata, 1, 1);
if (result < 0)
return -1;
if (wlan)
*wlan = !!(rdata & 8);
if (bluetooth)
*bluetooth = !!(rdata & 128);
return 0;
}
static int get_wireless_state_ec_standard(void)
{
u8 rdata;
int result;
result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
if (result < 0)
return -1;
wlan_s = !!(rdata & MSI_STANDARD_EC_WLAN_MASK);
bluetooth_s = !!(rdata & MSI_STANDARD_EC_BLUETOOTH_MASK);
threeg_s = !!(rdata & MSI_STANDARD_EC_3G_MASK);
return 0;
}
static int get_threeg_exists(void)
{
u8 rdata;
int result;
result = ec_read(MSI_STANDARD_EC_DEVICES_EXISTS_ADDRESS, &rdata);
if (result < 0)
return -1;
threeg_exists = !!(rdata & MSI_STANDARD_EC_3G_MASK);
return 0;
}
/* Backlight device stuff */
static int bl_get_brightness(struct backlight_device *b)
{
return get_lcd_level();
}
static int bl_update_status(struct backlight_device *b)
{
return set_lcd_level(b->props.brightness);
}
static const struct backlight_ops msibl_ops = {
.get_brightness = bl_get_brightness,
.update_status = bl_update_status,
};
static struct backlight_device *msibl_device;
/* Platform device */
static ssize_t show_wlan(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret, enabled;
if (old_ec_model) {
ret = get_wireless_state(&enabled, NULL);
} else {
ret = get_wireless_state_ec_standard();
enabled = wlan_s;
}
if (ret < 0)
return ret;
return sprintf(buf, "%i\n", enabled);
}
static ssize_t store_wlan(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
return set_device_state(buf, count, MSI_STANDARD_EC_WLAN_MASK);
}
static ssize_t show_bluetooth(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret, enabled;
if (old_ec_model) {
ret = get_wireless_state(NULL, &enabled);
} else {
ret = get_wireless_state_ec_standard();
enabled = bluetooth_s;
}
if (ret < 0)
return ret;
return sprintf(buf, "%i\n", enabled);
}
static ssize_t store_bluetooth(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
return set_device_state(buf, count, MSI_STANDARD_EC_BLUETOOTH_MASK);
}
static ssize_t show_threeg(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret;
/* old msi ec not support 3G */
if (old_ec_model)
return -1;
ret = get_wireless_state_ec_standard();
if (ret < 0)
return ret;
return sprintf(buf, "%i\n", threeg_s);
}
static ssize_t store_threeg(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
return set_device_state(buf, count, MSI_STANDARD_EC_3G_MASK);
}
static ssize_t show_lcd_level(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret;
ret = get_lcd_level();
if (ret < 0)
return ret;
return sprintf(buf, "%i\n", ret);
}
static ssize_t store_lcd_level(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
int level, ret;
if (sscanf(buf, "%i", &level) != 1 ||
(level < 0 || level >= MSI_LCD_LEVEL_MAX))
return -EINVAL;
ret = set_lcd_level(level);
if (ret < 0)
return ret;
return count;
}
static ssize_t show_auto_brightness(struct device *dev,
struct device_attribute *attr, char *buf)
{
int ret;
ret = get_auto_brightness();
if (ret < 0)
return ret;
return sprintf(buf, "%i\n", ret);
}
static ssize_t store_auto_brightness(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
int enable, ret;
if (sscanf(buf, "%i", &enable) != 1 || (enable != (enable & 1)))
return -EINVAL;
ret = set_auto_brightness(enable);
if (ret < 0)
return ret;
return count;
}
static DEVICE_ATTR(lcd_level, 0644, show_lcd_level, store_lcd_level);
static DEVICE_ATTR(auto_brightness, 0644, show_auto_brightness,
store_auto_brightness);
static DEVICE_ATTR(bluetooth, 0444, show_bluetooth, NULL);
static DEVICE_ATTR(wlan, 0444, show_wlan, NULL);
static DEVICE_ATTR(threeg, 0444, show_threeg, NULL);
static struct attribute *msipf_attributes[] = {
&dev_attr_lcd_level.attr,
&dev_attr_auto_brightness.attr,
&dev_attr_bluetooth.attr,
&dev_attr_wlan.attr,
NULL
};
static struct attribute_group msipf_attribute_group = {
.attrs = msipf_attributes
};
static struct platform_driver msipf_driver = {
.driver = {
.name = "msi-laptop-pf",
.owner = THIS_MODULE,
},
.resume = msi_laptop_resume,
};
static struct platform_device *msipf_device;
/* Initialization */
static int dmi_check_cb(const struct dmi_system_id *id)
{
printk(KERN_INFO "msi-laptop: Identified laptop model '%s'.\n",
id->ident);
return 1;
}
static struct dmi_system_id __initdata msi_dmi_table[] = {
{
.ident = "MSI S270",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "MICRO-STAR INT'L CO.,LTD"),
DMI_MATCH(DMI_PRODUCT_NAME, "MS-1013"),
DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
DMI_MATCH(DMI_CHASSIS_VENDOR,
"MICRO-STAR INT'L CO.,LTD")
},
.callback = dmi_check_cb
},
{
.ident = "MSI S271",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
DMI_MATCH(DMI_PRODUCT_NAME, "MS-1058"),
DMI_MATCH(DMI_PRODUCT_VERSION, "0581"),
DMI_MATCH(DMI_BOARD_NAME, "MS-1058")
},
.callback = dmi_check_cb
},
{
.ident = "MSI S420",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Micro-Star International"),
DMI_MATCH(DMI_PRODUCT_NAME, "MS-1412"),
DMI_MATCH(DMI_BOARD_VENDOR, "MSI"),
DMI_MATCH(DMI_BOARD_NAME, "MS-1412")
},
.callback = dmi_check_cb
},
{
.ident = "Medion MD96100",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "NOTEBOOK"),
DMI_MATCH(DMI_PRODUCT_NAME, "SAM2000"),
DMI_MATCH(DMI_PRODUCT_VERSION, "0131"),
DMI_MATCH(DMI_CHASSIS_VENDOR,
"MICRO-STAR INT'L CO.,LTD")
},
.callback = dmi_check_cb
},
{ }
};
static struct dmi_system_id __initdata msi_load_scm_models_dmi_table[] = {
{
.ident = "MSI N034",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"MICRO-STAR INTERNATIONAL CO., LTD"),
DMI_MATCH(DMI_PRODUCT_NAME, "MS-N034"),
DMI_MATCH(DMI_CHASSIS_VENDOR,
"MICRO-STAR INTERNATIONAL CO., LTD")
},
.callback = dmi_check_cb
},
{
.ident = "MSI N051",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"MICRO-STAR INTERNATIONAL CO., LTD"),
DMI_MATCH(DMI_PRODUCT_NAME, "MS-N051"),
DMI_MATCH(DMI_CHASSIS_VENDOR,
"MICRO-STAR INTERNATIONAL CO., LTD")
},
.callback = dmi_check_cb
},
{
.ident = "MSI N014",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"MICRO-STAR INTERNATIONAL CO., LTD"),
DMI_MATCH(DMI_PRODUCT_NAME, "MS-N014"),
},
.callback = dmi_check_cb
},
{
.ident = "MSI CR620",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR,
"Micro-Star International"),
DMI_MATCH(DMI_PRODUCT_NAME, "CR620"),
},
.callback = dmi_check_cb
},
{ }
};
static int rfkill_bluetooth_set(void *data, bool blocked)
{
/* Do something with blocked...*/
/*
* blocked == false is on
* blocked == true is off
*/
if (blocked)
set_device_state("0", 0, MSI_STANDARD_EC_BLUETOOTH_MASK);
else
set_device_state("1", 0, MSI_STANDARD_EC_BLUETOOTH_MASK);
return 0;
}
static int rfkill_wlan_set(void *data, bool blocked)
{
if (blocked)
set_device_state("0", 0, MSI_STANDARD_EC_WLAN_MASK);
else
set_device_state("1", 0, MSI_STANDARD_EC_WLAN_MASK);
return 0;
}
static int rfkill_threeg_set(void *data, bool blocked)
{
if (blocked)
set_device_state("0", 0, MSI_STANDARD_EC_3G_MASK);
else
set_device_state("1", 0, MSI_STANDARD_EC_3G_MASK);
return 0;
}
static const struct rfkill_ops rfkill_bluetooth_ops = {
.set_block = rfkill_bluetooth_set
};
static const struct rfkill_ops rfkill_wlan_ops = {
.set_block = rfkill_wlan_set
};
static const struct rfkill_ops rfkill_threeg_ops = {
.set_block = rfkill_threeg_set
};
static void rfkill_cleanup(void)
{
if (rfk_bluetooth) {
rfkill_unregister(rfk_bluetooth);
rfkill_destroy(rfk_bluetooth);
}
if (rfk_threeg) {
rfkill_unregister(rfk_threeg);
rfkill_destroy(rfk_threeg);
}
if (rfk_wlan) {
rfkill_unregister(rfk_wlan);
rfkill_destroy(rfk_wlan);
}
}
static void msi_update_rfkill(struct work_struct *ignored)
{
get_wireless_state_ec_standard();
if (rfk_wlan)
rfkill_set_sw_state(rfk_wlan, !wlan_s);
if (rfk_bluetooth)
rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
if (rfk_threeg)
rfkill_set_sw_state(rfk_threeg, !threeg_s);
}
static DECLARE_DELAYED_WORK(msi_rfkill_work, msi_update_rfkill);
static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
struct serio *port)
{
static bool extended;
if (str & 0x20)
return false;
/* 0x54 wwan, 0x62 bluetooth, 0x76 wlan*/
if (unlikely(data == 0xe0)) {
extended = true;
return false;
} else if (unlikely(extended)) {
switch (data) {
case 0x54:
case 0x62:
case 0x76:
schedule_delayed_work(&msi_rfkill_work,
round_jiffies_relative(0.5 * HZ));
break;
}
extended = false;
}
return false;
}
static void msi_init_rfkill(struct work_struct *ignored)
{
if (rfk_wlan) {
rfkill_set_sw_state(rfk_wlan, !wlan_s);
rfkill_wlan_set(NULL, !wlan_s);
}
if (rfk_bluetooth) {
rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
rfkill_bluetooth_set(NULL, !bluetooth_s);
}
if (rfk_threeg) {
rfkill_set_sw_state(rfk_threeg, !threeg_s);
rfkill_threeg_set(NULL, !threeg_s);
}
}
static DECLARE_DELAYED_WORK(msi_rfkill_init, msi_init_rfkill);
static int rfkill_init(struct platform_device *sdev)
{
/* add rfkill */
int retval;
/* keep the hardware wireless state */
get_wireless_state_ec_standard();
rfk_bluetooth = rfkill_alloc("msi-bluetooth", &sdev->dev,
RFKILL_TYPE_BLUETOOTH,
&rfkill_bluetooth_ops, NULL);
if (!rfk_bluetooth) {
retval = -ENOMEM;
goto err_bluetooth;
}
retval = rfkill_register(rfk_bluetooth);
if (retval)
goto err_bluetooth;
rfk_wlan = rfkill_alloc("msi-wlan", &sdev->dev, RFKILL_TYPE_WLAN,
&rfkill_wlan_ops, NULL);
if (!rfk_wlan) {
retval = -ENOMEM;
goto err_wlan;
}
retval = rfkill_register(rfk_wlan);
if (retval)
goto err_wlan;
if (threeg_exists) {
rfk_threeg = rfkill_alloc("msi-threeg", &sdev->dev,
RFKILL_TYPE_WWAN, &rfkill_threeg_ops, NULL);
if (!rfk_threeg) {
retval = -ENOMEM;
goto err_threeg;
}
retval = rfkill_register(rfk_threeg);
if (retval)
goto err_threeg;
}
/* schedule to run rfkill state initial */
schedule_delayed_work(&msi_rfkill_init,
round_jiffies_relative(1 * HZ));
return 0;
err_threeg:
rfkill_destroy(rfk_threeg);
if (rfk_wlan)
rfkill_unregister(rfk_wlan);
err_wlan:
rfkill_destroy(rfk_wlan);
if (rfk_bluetooth)
rfkill_unregister(rfk_bluetooth);
err_bluetooth:
rfkill_destroy(rfk_bluetooth);
return retval;
}
static int msi_laptop_resume(struct platform_device *device)
{
u8 data;
int result;
if (!load_scm_model)
return 0;
/* set load SCM to disable hardware control by fn key */
result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
if (result < 0)
return result;
result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
data | MSI_STANDARD_EC_SCM_LOAD_MASK);
if (result < 0)
return result;
return 0;
}
static int load_scm_model_init(struct platform_device *sdev)
{
u8 data;
int result;
/* allow userland write sysfs file */
dev_attr_bluetooth.store = store_bluetooth;
dev_attr_wlan.store = store_wlan;
dev_attr_threeg.store = store_threeg;
dev_attr_bluetooth.attr.mode |= S_IWUSR;
dev_attr_wlan.attr.mode |= S_IWUSR;
dev_attr_threeg.attr.mode |= S_IWUSR;
/* disable hardware control by fn key */
result = ec_read(MSI_STANDARD_EC_SCM_LOAD_ADDRESS, &data);
if (result < 0)
return result;
result = ec_write(MSI_STANDARD_EC_SCM_LOAD_ADDRESS,
data | MSI_STANDARD_EC_SCM_LOAD_MASK);
if (result < 0)
return result;
/* initial rfkill */
result = rfkill_init(sdev);
if (result < 0)
goto fail_rfkill;
result = i8042_install_filter(msi_laptop_i8042_filter);
if (result) {
printk(KERN_ERR
"msi-laptop: Unable to install key filter\n");
goto fail_filter;
}
return 0;
fail_filter:
rfkill_cleanup();
fail_rfkill:
return result;
}
static int __init msi_init(void)
{
int ret;
if (acpi_disabled)
return -ENODEV;
if (force || dmi_check_system(msi_dmi_table))
old_ec_model = 1;
if (!old_ec_model)
get_threeg_exists();
if (!old_ec_model && dmi_check_system(msi_load_scm_models_dmi_table))
load_scm_model = 1;
if (auto_brightness < 0 || auto_brightness > 2)
return -EINVAL;
/* Register backlight stuff */
if (acpi_video_backlight_support()) {
printk(KERN_INFO "MSI: Brightness ignored, must be controlled "
"by ACPI video driver\n");
} else {
struct backlight_properties props;
memset(&props, 0, sizeof(struct backlight_properties));
props.max_brightness = MSI_LCD_LEVEL_MAX - 1;
msibl_device = backlight_device_register("msi-laptop-bl", NULL,
NULL, &msibl_ops,
&props);
if (IS_ERR(msibl_device))
return PTR_ERR(msibl_device);
}
ret = platform_driver_register(&msipf_driver);
if (ret)
goto fail_backlight;
/* Register platform stuff */
msipf_device = platform_device_alloc("msi-laptop-pf", -1);
if (!msipf_device) {
ret = -ENOMEM;
goto fail_platform_driver;
}
ret = platform_device_add(msipf_device);
if (ret)
goto fail_platform_device1;
if (load_scm_model && (load_scm_model_init(msipf_device) < 0)) {
ret = -EINVAL;
goto fail_platform_device1;
}
ret = sysfs_create_group(&msipf_device->dev.kobj,
&msipf_attribute_group);
if (ret)
goto fail_platform_device2;
if (!old_ec_model) {
if (threeg_exists)
ret = device_create_file(&msipf_device->dev,
&dev_attr_threeg);
if (ret)
goto fail_platform_device2;
}
/* Disable automatic brightness control by default because
* this module was probably loaded to do brightness control in
* software. */
if (auto_brightness != 2)
set_auto_brightness(auto_brightness);
printk(KERN_INFO "msi-laptop: driver "MSI_DRIVER_VERSION" successfully loaded.\n");
return 0;
fail_platform_device2:
if (load_scm_model) {
i8042_remove_filter(msi_laptop_i8042_filter);
cancel_delayed_work_sync(&msi_rfkill_work);
rfkill_cleanup();
}
platform_device_del(msipf_device);
fail_platform_device1:
platform_device_put(msipf_device);
fail_platform_driver:
platform_driver_unregister(&msipf_driver);
fail_backlight:
backlight_device_unregister(msibl_device);
return ret;
}
static void __exit msi_cleanup(void)
{
if (load_scm_model) {
i8042_remove_filter(msi_laptop_i8042_filter);
cancel_delayed_work_sync(&msi_rfkill_work);
rfkill_cleanup();
}
sysfs_remove_group(&msipf_device->dev.kobj, &msipf_attribute_group);
if (!old_ec_model && threeg_exists)
device_remove_file(&msipf_device->dev, &dev_attr_threeg);
platform_device_unregister(msipf_device);
platform_driver_unregister(&msipf_driver);
backlight_device_unregister(msibl_device);
/* Enable automatic brightness control again */
if (auto_brightness != 2)
set_auto_brightness(1);
printk(KERN_INFO "msi-laptop: driver unloaded.\n");
}
module_init(msi_init);
module_exit(msi_cleanup);
MODULE_AUTHOR("Lennart Poettering");
MODULE_DESCRIPTION("MSI Laptop Support");
MODULE_VERSION(MSI_DRIVER_VERSION);
MODULE_LICENSE("GPL");
MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1058:pvr0581:rvnMSI:rnMS-1058:*:ct10:*");
MODULE_ALIAS("dmi:*:svnMicro-StarInternational:pnMS-1412:*:rvnMSI:rnMS-1412:*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
MODULE_ALIAS("dmi:*:svnNOTEBOOK:pnSAM2000:pvr0131*:cvnMICRO-STARINT'LCO.,LTD:ct10:*");
MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N034:*");
MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N051:*");
MODULE_ALIAS("dmi:*:svnMICRO-STARINTERNATIONAL*:pnMS-N014:*");
MODULE_ALIAS("dmi:*:svnMicro-StarInternational*:pnCR620:*");
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