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path: root/drivers/net/wireless/rt2x00/rt2x00rfkill.c
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Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00rfkill.c')
-rw-r--r--drivers/net/wireless/rt2x00/rt2x00rfkill.c50
1 files changed, 28 insertions, 22 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00rfkill.c b/drivers/net/wireless/rt2x00/rt2x00rfkill.c
index 8a2fefb365b..55eff58f188 100644
--- a/drivers/net/wireless/rt2x00/rt2x00rfkill.c
+++ b/drivers/net/wireless/rt2x00/rt2x00rfkill.c
@@ -45,16 +45,15 @@ static int rt2x00rfkill_toggle_radio(void *data, enum rfkill_state state)
return 0;
if (state == RFKILL_STATE_UNBLOCKED) {
- INFO(rt2x00dev, "Hardware button pressed, enabling radio.\n");
+ INFO(rt2x00dev, "RFKILL event: enabling radio.\n");
clear_bit(DEVICE_STATE_DISABLED_RADIO_HW, &rt2x00dev->flags);
retval = rt2x00lib_enable_radio(rt2x00dev);
} else if (state == RFKILL_STATE_SOFT_BLOCKED) {
- INFO(rt2x00dev, "Hardware button pressed, disabling radio.\n");
+ INFO(rt2x00dev, "RFKILL event: disabling radio.\n");
set_bit(DEVICE_STATE_DISABLED_RADIO_HW, &rt2x00dev->flags);
rt2x00lib_disable_radio(rt2x00dev);
} else {
- WARNING(rt2x00dev, "Received unexpected rfkill state %d.\n",
- state);
+ WARNING(rt2x00dev, "RFKILL event: unknown state %d.\n", state);
}
return retval;
@@ -64,7 +63,12 @@ static int rt2x00rfkill_get_state(void *data, enum rfkill_state *state)
{
struct rt2x00_dev *rt2x00dev = data;
- *state = rt2x00dev->rfkill->state;
+ /*
+ * rfkill_poll reports 1 when the key has been pressed and the
+ * radio should be blocked.
+ */
+ *state = rt2x00dev->ops->lib->rfkill_poll(rt2x00dev) ?
+ RFKILL_STATE_SOFT_BLOCKED : RFKILL_STATE_UNBLOCKED;
return 0;
}
@@ -73,19 +77,18 @@ static void rt2x00rfkill_poll(struct work_struct *work)
{
struct rt2x00_dev *rt2x00dev =
container_of(work, struct rt2x00_dev, rfkill_work.work);
- int state;
+ enum rfkill_state state;
- if (!test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state))
+ if (!test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state) ||
+ !test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
return;
/*
- * rfkill_poll reports 1 when the key has been pressed and the
- * radio should be blocked.
+ * Poll latest state and report it to rfkill who should sort
+ * out if the state should be toggled or not.
*/
- state = !rt2x00dev->ops->lib->rfkill_poll(rt2x00dev) ?
- RFKILL_STATE_UNBLOCKED : RFKILL_STATE_SOFT_BLOCKED;
-
- rfkill_force_state(rt2x00dev->rfkill, state);
+ if (!rt2x00rfkill_get_state(rt2x00dev, &state))
+ rfkill_force_state(rt2x00dev->rfkill, state);
queue_delayed_work(rt2x00dev->hw->workqueue,
&rt2x00dev->rfkill_work, RFKILL_POLL_INTERVAL);
@@ -93,8 +96,8 @@ static void rt2x00rfkill_poll(struct work_struct *work)
void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
{
- if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) ||
- !test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state))
+ if (!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state) ||
+ test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state))
return;
if (rfkill_register(rt2x00dev->rfkill)) {
@@ -114,7 +117,7 @@ void rt2x00rfkill_register(struct rt2x00_dev *rt2x00dev)
void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
{
- if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) ||
+ if (!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state) ||
!test_bit(RFKILL_STATE_REGISTERED, &rt2x00dev->rfkill_state))
return;
@@ -127,21 +130,25 @@ void rt2x00rfkill_unregister(struct rt2x00_dev *rt2x00dev)
void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev)
{
- if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
+ struct device *dev = wiphy_dev(rt2x00dev->hw->wiphy);
+
+ if (test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state))
return;
- rt2x00dev->rfkill =
- rfkill_allocate(wiphy_dev(rt2x00dev->hw->wiphy), RFKILL_TYPE_WLAN);
+ rt2x00dev->rfkill = rfkill_allocate(dev, RFKILL_TYPE_WLAN);
if (!rt2x00dev->rfkill) {
ERROR(rt2x00dev, "Failed to allocate rfkill handler.\n");
return;
}
+ __set_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state);
+
rt2x00dev->rfkill->name = rt2x00dev->ops->name;
rt2x00dev->rfkill->data = rt2x00dev;
rt2x00dev->rfkill->state = -1;
rt2x00dev->rfkill->toggle_radio = rt2x00rfkill_toggle_radio;
- rt2x00dev->rfkill->get_state = rt2x00rfkill_get_state;
+ if (test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags))
+ rt2x00dev->rfkill->get_state = rt2x00rfkill_get_state;
INIT_DELAYED_WORK(&rt2x00dev->rfkill_work, rt2x00rfkill_poll);
@@ -150,8 +157,7 @@ void rt2x00rfkill_allocate(struct rt2x00_dev *rt2x00dev)
void rt2x00rfkill_free(struct rt2x00_dev *rt2x00dev)
{
- if (!test_bit(CONFIG_SUPPORT_HW_BUTTON, &rt2x00dev->flags) ||
- !test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->rfkill_state))
+ if (!test_bit(RFKILL_STATE_ALLOCATED, &rt2x00dev->flags))
return;
cancel_delayed_work_sync(&rt2x00dev->rfkill_work);