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yaml
---
r: 187100
b: refs/heads/master
c: 472ea12
h: refs/heads/master
v: v3
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Lee, Chun-Yi authored and Greg Kroah-Hartman committed Mar 8, 2010
1 parent 754d015 commit 34fd83a
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2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: fc0dc4c926e6b7afe680aecf809f48eef3faa182
refs/heads/master: 472ea12d1a265c868e1605abb59bf21f595eedfc
238 changes: 238 additions & 0 deletions trunk/drivers/platform/x86/msi-laptop.c
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Original file line number Diff line number Diff line change
Expand Up @@ -58,6 +58,7 @@
#include <linux/dmi.h>
#include <linux/backlight.h>
#include <linux/platform_device.h>
#include <linux/rfkill.h>

#define MSI_DRIVER_VERSION "0.5"

Expand All @@ -72,6 +73,10 @@
#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 force;
module_param(force, bool, 0);
MODULE_PARM_DESC(force, "Force driver load, ignore DMI data");
Expand All @@ -83,6 +88,19 @@ MODULE_PARM_DESC(auto_brightness, "Enable automatic brightness control (0: disab
static bool old_ec_model;
static int wlan_s, bluetooth_s, threeg_s;

/* 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)
Expand Down Expand Up @@ -139,6 +157,35 @@ static int set_auto_brightness(int enable)
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;
Expand Down Expand Up @@ -215,6 +262,12 @@ static ssize_t show_wlan(struct device *dev,
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)
{
Expand All @@ -233,6 +286,12 @@ static ssize_t show_bluetooth(struct device *dev,
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)
{
Expand All @@ -250,6 +309,12 @@ static ssize_t show_threeg(struct device *dev,
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)
{
Expand Down Expand Up @@ -387,6 +452,169 @@ static struct dmi_system_id __initdata msi_dmi_table[] = {
{ }
};

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
},
{ }
};

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 struct rfkill_ops rfkill_bluetooth_ops = {
.set_block = rfkill_bluetooth_set
};

static struct rfkill_ops rfkill_wlan_ops = {
.set_block = rfkill_wlan_set
};

static 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 int rfkill_init(struct platform_device *sdev)
{
/* add rfkill */
int retval;

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;

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;

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 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)
return result;

return 0;
}

static int __init msi_init(void)
{
int ret;
Expand All @@ -397,6 +625,9 @@ static int __init msi_init(void)
if (force || dmi_check_system(msi_dmi_table))
old_ec_model = 1;

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;

Expand Down Expand Up @@ -429,6 +660,11 @@ static int __init msi_init(void)
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;
Expand Down Expand Up @@ -479,6 +715,8 @@ static void __exit msi_cleanup(void)
platform_driver_unregister(&msipf_driver);
backlight_device_unregister(msibl_device);

rfkill_cleanup();

/* Enable automatic brightness control again */
if (auto_brightness != 2)
set_auto_brightness(1);
Expand Down

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