This commit introduces two new sysfs knobs.
/sys/class/rfkill/rfkill[0-9]+/hw: (ro)
hardblock kill state
/sys/class/rfkill/rfkill[0-9]+/sw: (rw)
softblock kill state
Signed-off-by: Florian Mickler <florian@xxxxxxxxxxx>
---
I am not shure about those names.
Other alternatives:
[hs]w_block
block_[hs]w
block[sh]w
soft/hard
...
Documentation/ABI/stable/sysfs-class-rfkill | 25 ++++++++++++
net/rfkill/core.c | 57 +++++++++++++++++++++++++++
2 files changed, 82 insertions(+), 0 deletions(-)
diff --git a/Documentation/ABI/stable/sysfs-class-rfkill b/Documentation/ABI/stable/sysfs-class-rfkill
index 97d5064..ccbbba2 100644
--- a/Documentation/ABI/stable/sysfs-class-rfkill
+++ b/Documentation/ABI/stable/sysfs-class-rfkill
@@ -40,3 +40,28 @@ Description: Whether the soft blocked state is initialised from non-volatile
Values: A numeric value.
0: false
1: true
+
+
+What: /sys/class/rfkill/rfkill[0-9]+/hw
+Date: 23-Feb-2010
+KernelVersion v2.6.34
+Contact: linux-wireless@xxxxxxxxxxxxxxx
+Description: Current hardblock state. This file is read only.
+Values: A numeric value.
+ 0: inactive
+ The transmitter is (potentially) active.
+ 1: active
+ The transmitter is forced off by something outside of
+ the driver's control.
+
+
+What: /sys/class/rfkill/rfkill[0-9]+/sw
+Date: 23-Feb-2010
+KernelVersion v2.6.34
+Contact: linux-wireless@xxxxxxxxxxxxxxx
+Description: Current softblock state. This file is read and write.
+Values: A numeric value.
+ 0: inactive
+ The transmitter is (potentially) active.
+ 1: active
+ The transmitter is turned off by software.
diff --git a/net/rfkill/core.c b/net/rfkill/core.c
index c218e07..b91e192 100644
--- a/net/rfkill/core.c
+++ b/net/rfkill/core.c
@@ -628,6 +628,61 @@ static ssize_t rfkill_persistent_show(struct device *dev,
return sprintf(buf, "%d\n", rfkill->persistent);
}
+static ssize_t rfkill_hw_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rfkill *rfkill = to_rfkill(dev);
+ unsigned long flags;
+ u32 state;
+
+ spin_lock_irqsave(&rfkill->lock, flags);
+ state = rfkill->state;
+ spin_unlock_irqrestore(&rfkill->lock, flags);
+
+ return sprintf(buf, "%d\n", (state & RFKILL_BLOCK_HW) ? 1 : 0 );
+}
+
+static ssize_t rfkill_sw_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct rfkill *rfkill = to_rfkill(dev);
+ unsigned long flags;
+ u32 state;
+
+ spin_lock_irqsave(&rfkill->lock, flags);
+ state = rfkill->state;
+ spin_unlock_irqrestore(&rfkill->lock, flags);
+
+ return sprintf(buf, "%d\n", (state & RFKILL_BLOCK_SW) ? 1 : 0 );
+}
+
+static ssize_t rfkill_sw_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct rfkill *rfkill = to_rfkill(dev);
+ unsigned long state;
+ int err;
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ err = strict_strtoul(buf, 0, &state);
+ if (err)
+ return err;
+
+ if (state > 1 )
+ return -EINVAL;
+
+ mutex_lock(&rfkill_global_mutex);
+ rfkill_set_block(rfkill, state);
+ mutex_unlock(&rfkill_global_mutex);
+
+ return err ?: count;
+}
+
static u8 user_state_from_blocked(unsigned long state)
{
if (state & RFKILL_BLOCK_HW)
@@ -700,6 +755,8 @@ static struct device_attribute rfkill_dev_attrs[] = {
__ATTR(persistent, S_IRUGO, rfkill_persistent_show, NULL),
__ATTR(state, S_IRUGO|S_IWUSR, rfkill_state_show, rfkill_state_store),
__ATTR(claim, S_IRUGO|S_IWUSR, rfkill_claim_show, rfkill_claim_store),
+ __ATTR(sw, S_IRUGO|S_IWUSR, rfkill_sw_show, rfkill_sw_store),
+ __ATTR(hw, S_IRUGO, rfkill_hw_show, NULL),
__ATTR_NULL
};
--
1.6.6.1
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