Merge commit 'v2.6.34-rc6' into core/locking

1 files changed, 360 insertions, 7 deletions

diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index 759763d18e4..996223a7c00 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -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"
 
@@ -66,6 +67,20 @@
 #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");
@@ -74,6 +89,23 @@ 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)
@@ -130,6 +162,35 @@ 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;
@@ -148,6 +209,38 @@ static int get_wireless_state(int *wlan, int *bluetooth)
 	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)
@@ -176,26 +269,71 @@ static ssize_t show_wlan(struct device *dev,
 
 	int ret, enabled;
 
-	ret = get_wireless_state(&enabled, NULL);
+	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;
 
-	ret = get_wireless_state(NULL, &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)
 {
@@ -258,6 +396,7 @@ 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,
@@ -275,7 +414,8 @@ static struct platform_driver msipf_driver = {
 	.driver = {
 		.name = "msi-laptop-pf",
 		.owner = THIS_MODULE,
-	}
+	},
+	.resume = msi_laptop_resume,
 };
 
 static struct platform_device *msipf_device;
@@ -332,6 +472,192 @@ 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;
+
+	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;
+	}
+
+	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)
+		return result;
+
+	return 0;
+}
+
 static int __init msi_init(void)
 {
 	int ret;
@@ -339,8 +665,14 @@ static int __init msi_init(void)
 	if (acpi_disabled)
 		return -ENODEV;
 
-	if (!force && !dmi_check_system(msi_dmi_table))
-		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;
@@ -351,11 +683,14 @@ static int __init msi_init(void)
 		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);
+							 NULL, &msibl_ops,
+							 &props);
 		if (IS_ERR(msibl_device))
 			return PTR_ERR(msibl_device);
-		msibl_device->props.max_brightness = MSI_LCD_LEVEL_MAX-1;
 	}
 
 	ret = platform_driver_register(&msipf_driver);
@@ -374,10 +709,23 @@ 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;
 
+	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. */
@@ -412,10 +760,14 @@ static void __exit msi_cleanup(void)
 {
 
 	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);
 
+	rfkill_cleanup();
+
 	/* Enable automatic brightness control again */
 	if (auto_brightness != 2)
 		set_auto_brightness(1);
@@ -435,3 +787,4 @@ MODULE_ALIAS("dmi:*:svnMICRO-STARINT'LCO.,LTD:pnMS-1013:pvr0131*:cvnMICRO-STARIN
 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:*");