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ideapad: define cfg bits and create sysfs node for cfg

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Create /sys/devices/platform/ideapad/cfg for showing cfg value.

Signed-off-by: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>
This commit is contained in:
Ike Panhc 2011-06-30 19:50:40 +08:00 committed by Matthew Garrett
parent 33009557bd
commit 3371f48167
2 changed files with 52 additions and 16 deletions
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17
Documentation/ABI/testing/sysfs-platform-ideapad-laptop
View File

@ -4,3 +4,20 @@ KernelVersion: 2.6.37
Contact: "Ike Panhc <ike.pan@canonical.com>"
Description:
Control the power of camera module. 1 means on, 0 means off.
What: /sys/devices/platform/ideapad/cfg
Date: Jun 2011
KernelVersion: 3.1
Contact: "Ike Panhc <ike.pan@canonical.com>"
Description:
Ideapad capability bits.
Bit 8-10: 1 - Intel graphic only
2 - ATI graphic only
3 - Nvidia graphic only
4 - Intel and ATI graphic
5 - Intel and Nvidia graphic
Bit 16: Bluetooth exist (1 for exist)
Bit 17: 3G exist (1 for exist)
Bit 18: Wifi exist (1 for exist)
Bit 19: Camera exist (1 for exist)

51
drivers/platform/x86/ideapad-laptop.c
View File

@ -35,10 +35,15 @@
#define IDEAPAD_RFKILL_DEV_NUM (3)
#define CFG_BT_BIT (16)
#define CFG_3G_BIT (17)
#define CFG_WIFI_BIT (18)
struct ideapad_private {
struct rfkill *rfk[IDEAPAD_RFKILL_DEV_NUM];
struct platform_device *platform_device;
struct input_dev *inputdev;
unsigned long cfg;
};
static acpi_handle ideapad_handle;
@ -155,7 +160,7 @@ static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data)
}
/*
* camera power
* sysfs
*/
static ssize_t show_ideapad_cam(struct device *dev,
struct device_attribute *attr,
@ -186,6 +191,27 @@ static ssize_t store_ideapad_cam(struct device *dev,
static DEVICE_ATTR(camera_power, 0644, show_ideapad_cam, store_ideapad_cam);
static ssize_t show_ideapad_cfg(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct ideapad_private *priv = dev_get_drvdata(dev);
return sprintf(buf, "0x%.8lX\n", priv->cfg);
}
static DEVICE_ATTR(cfg, 0444, show_ideapad_cfg, NULL);
static struct attribute *ideapad_attributes[] = {
&dev_attr_camera_power.attr,
&dev_attr_cfg.attr,
NULL
};
static struct attribute_group ideapad_attribute_group = {
.attrs = ideapad_attributes
};
/*
* Rfkill
*/
@ -197,9 +223,9 @@ struct ideapad_rfk_data {
};
const struct ideapad_rfk_data ideapad_rfk_data[] = {
{ "ideapad_wlan", 18, 0x15, RFKILL_TYPE_WLAN },
{ "ideapad_bluetooth", 16, 0x17, RFKILL_TYPE_BLUETOOTH },
{ "ideapad_3g", 17, 0x20, RFKILL_TYPE_WWAN },
{ "ideapad_wlan", CFG_WIFI_BIT, 0x15, RFKILL_TYPE_WLAN },
{ "ideapad_bluetooth", CFG_BT_BIT, 0x17, RFKILL_TYPE_BLUETOOTH },
{ "ideapad_3g", CFG_3G_BIT, 0x20, RFKILL_TYPE_WWAN },
};
static int ideapad_rfk_set(void *data, bool blocked)
@ -280,15 +306,6 @@ static void __devexit ideapad_unregister_rfkill(struct acpi_device *adevice,
/*
* Platform device
*/
static struct attribute *ideapad_attributes[] = {
&dev_attr_camera_power.attr,
NULL
};
static struct attribute_group ideapad_attribute_group = {
.attrs = ideapad_attributes
};
static int __devinit ideapad_platform_init(struct ideapad_private *priv)
{
int result;
@ -393,10 +410,11 @@ MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
{
int ret, i, cfg;
int ret, i;
unsigned long cfg;
struct ideapad_private *priv;
if (read_method_int(adevice->handle, "_CFG", &cfg))
if (read_method_int(adevice->handle, "_CFG", (int *)&cfg))
return -ENODEV;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
@ -404,6 +422,7 @@ static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
return -ENOMEM;
dev_set_drvdata(&adevice->dev, priv);
ideapad_handle = adevice->handle;
priv->cfg = cfg;
ret = ideapad_platform_init(priv);
if (ret)
@ -414,7 +433,7 @@ static int __devinit ideapad_acpi_add(struct acpi_device *adevice)
goto input_failed;
for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) {
if (test_bit(ideapad_rfk_data[i].cfgbit, (unsigned long *)&cfg))
if (test_bit(ideapad_rfk_data[i].cfgbit, &cfg))
ideapad_register_rfkill(adevice, i);
else
priv->rfk[i] = NULL;