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ACPI: thinkpad-acpi: add sysfs support to wan and bluetooth subdrivers

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Add support to sysfs to the wan and bluetooth subdrivers.

Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Henrique de Moraes Holschuh
2007-04-27 22:00:17 -03:00
committed by Len Brown
parent a0416420e2
commit d3a6ade4f8
3 changed files with 186 additions and 23 deletions
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144
drivers/misc/thinkpad_acpi.c
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@@ -1020,8 +1020,54 @@ static struct ibm_struct hotkey_driver_data = {
* Bluetooth subdriver
*/
/* sysfs bluetooth enable ---------------------------------------------- */
static ssize_t bluetooth_enable_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int status;
status = bluetooth_get_radiosw();
if (status < 0)
return status;
return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0);
}
static ssize_t bluetooth_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long t;
int res;
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
res = bluetooth_set_radiosw(t);
return (res) ? res : count;
}
static struct device_attribute dev_attr_bluetooth_enable =
__ATTR(enable, S_IWUSR | S_IRUGO,
bluetooth_enable_show, bluetooth_enable_store);
/* --------------------------------------------------------------------- */
static struct attribute *bluetooth_attributes[] = {
&dev_attr_bluetooth_enable.attr,
NULL
};
static const struct attribute_group bluetooth_attr_group = {
.name = TPACPI_BLUETH_SYSFS_GROUP,
.attrs = bluetooth_attributes,
};
static int __init bluetooth_init(struct ibm_init_struct *iibm)
{
int res;
int status = 0;
vdbg_printk(TPACPI_DBG_INIT, "initializing bluetooth subdriver\n");
@@ -1037,17 +1083,29 @@ static int __init bluetooth_init(struct ibm_init_struct *iibm)
str_supported(tp_features.bluetooth),
status);
if (tp_features.bluetooth &&
!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) {
/* no bluetooth hardware present in system */
tp_features.bluetooth = 0;
dbg_printk(TPACPI_DBG_INIT,
"bluetooth hardware not installed\n");
if (tp_features.bluetooth) {
if (!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) {
/* no bluetooth hardware present in system */
tp_features.bluetooth = 0;
dbg_printk(TPACPI_DBG_INIT,
"bluetooth hardware not installed\n");
} else {
res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
&bluetooth_attr_group);
if (res)
return res;
}
}
return (tp_features.bluetooth)? 0 : 1;
}
static void bluetooth_exit(void)
{
sysfs_remove_group(&tpacpi_pdev->dev.kobj,
&bluetooth_attr_group);
}
static int bluetooth_get_radiosw(void)
{
int status;
@@ -1080,6 +1138,7 @@ static int bluetooth_set_radiosw(int radio_on)
return 0;
}
/* procfs -------------------------------------------------------------- */
static int bluetooth_read(char *p)
{
int len = 0;
@@ -1119,14 +1178,61 @@ static struct ibm_struct bluetooth_driver_data = {
.name = "bluetooth",
.read = bluetooth_read,
.write = bluetooth_write,
.exit = bluetooth_exit,
};
/*************************************************************************
* Wan subdriver
*/
/* sysfs wan enable ---------------------------------------------------- */
static ssize_t wan_enable_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int status;
status = wan_get_radiosw();
if (status < 0)
return status;
return snprintf(buf, PAGE_SIZE, "%d\n", status ? 1 : 0);
}
static ssize_t wan_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long t;
int res;
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
res = wan_set_radiosw(t);
return (res) ? res : count;
}
static struct device_attribute dev_attr_wan_enable =
__ATTR(enable, S_IWUSR | S_IRUGO,
wan_enable_show, wan_enable_store);
/* --------------------------------------------------------------------- */
static struct attribute *wan_attributes[] = {
&dev_attr_wan_enable.attr,
NULL
};
static const struct attribute_group wan_attr_group = {
.name = TPACPI_WAN_SYSFS_GROUP,
.attrs = wan_attributes,
};
static int __init wan_init(struct ibm_init_struct *iibm)
{
int res;
int status = 0;
vdbg_printk(TPACPI_DBG_INIT, "initializing wan subdriver\n");
@@ -1140,17 +1246,29 @@ static int __init wan_init(struct ibm_init_struct *iibm)
str_supported(tp_features.wan),
status);
if (tp_features.wan &&
!(status & TP_ACPI_WANCARD_HWPRESENT)) {
/* no wan hardware present in system */
tp_features.wan = 0;
dbg_printk(TPACPI_DBG_INIT,
"wan hardware not installed\n");
if (tp_features.wan) {
if (!(status & TP_ACPI_WANCARD_HWPRESENT)) {
/* no wan hardware present in system */
tp_features.wan = 0;
dbg_printk(TPACPI_DBG_INIT,
"wan hardware not installed\n");
} else {
res = sysfs_create_group(&tpacpi_pdev->dev.kobj,
&wan_attr_group);
if (res)
return res;
}
}
return (tp_features.wan)? 0 : 1;
}
static void wan_exit(void)
{
sysfs_remove_group(&tpacpi_pdev->dev.kobj,
&wan_attr_group);
}
static int wan_get_radiosw(void)
{
int status;
@@ -1183,6 +1301,7 @@ static int wan_set_radiosw(int radio_on)
return 0;
}
/* procfs -------------------------------------------------------------- */
static int wan_read(char *p)
{
int len = 0;
@@ -1222,6 +1341,7 @@ static struct ibm_struct wan_driver_data = {
.name = "wan",
.read = wan_read,
.write = wan_write,
.exit = wan_exit,
.flags.experimental = 1,
};