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authorHenrique de Moraes Holschuh <hmh@hmh.eng.br>2007-04-27 22:00:17 -0300
committerLen Brown <len.brown@intel.com>2007-04-28 21:41:20 -0400
commitd3a6ade4f84416d774c3e5db5faae1840d55bd97 (patch)
tree7d9568a5531b9ad4a48308e4e63ca7976f7de558 /drivers/misc
parenta0416420e2c6244792d6f308183ad57c40532078 (diff)
ACPI: thinkpad-acpi: add sysfs support to wan and bluetooth subdrivers
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>
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/thinkpad_acpi.c144
-rw-r--r--drivers/misc/thinkpad_acpi.h4
2 files changed, 136 insertions, 12 deletions
diff --git a/drivers/misc/thinkpad_acpi.c b/drivers/misc/thinkpad_acpi.c
index 83a8d984e70..6c36a55cb3d 100644
--- a/drivers/misc/thinkpad_acpi.c
+++ b/drivers/misc/thinkpad_acpi.c
@@ -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,
};
diff --git a/drivers/misc/thinkpad_acpi.h b/drivers/misc/thinkpad_acpi.h
index 7615adb381c..a6c28558586 100644
--- a/drivers/misc/thinkpad_acpi.h
+++ b/drivers/misc/thinkpad_acpi.h
@@ -278,6 +278,8 @@ static int beep_write(char *buf);
* Bluetooth subdriver
*/
+#define TPACPI_BLUETH_SYSFS_GROUP "bluetooth"
+
enum {
/* ACPI GBDC/SBDC bits */
TP_ACPI_BLUETOOTH_HWPRESENT = 0x01, /* Bluetooth hw available */
@@ -551,6 +553,8 @@ static int volume_write(char *buf);
* Wan subdriver
*/
+#define TPACPI_WAN_SYSFS_GROUP "wwan"
+
enum {
/* ACPI GWAN/SWAN bits */
TP_ACPI_WANCARD_HWPRESENT = 0x01, /* Wan hw available */