#include "rfkill.h"
#include "b43.h"
+#include <linux/kmod.h>
+
/* Returns TRUE, if the radio is enabled in hardware. */
static bool b43_is_hw_radio_enabled(struct b43_wldev *dev)
return 0;
}
+/* Update the rfkill state */
+static void b43_rfkill_update_state(struct b43_wldev *dev)
+{
+ struct b43_rfkill *rfk = &(dev->wl->rfkill);
+
+ if (!dev->radio_hw_enable) {
+ rfk->rfkill->state = RFKILL_STATE_HARD_BLOCKED;
+ return;
+ }
+
+ if (!dev->phy.radio_on)
+ rfk->rfkill->state = RFKILL_STATE_SOFT_BLOCKED;
+ else
+ rfk->rfkill->state = RFKILL_STATE_UNBLOCKED;
+
+}
+
/* The poll callback for the hardware button. */
static void b43_rfkill_poll(struct input_polled_dev *poll_dev)
{
bool report_change = 0;
mutex_lock(&wl->mutex);
- B43_WARN_ON(b43_status(dev) < B43_STAT_INITIALIZED);
+ if (unlikely(b43_status(dev) < B43_STAT_INITIALIZED)) {
+ mutex_unlock(&wl->mutex);
+ return;
+ }
enabled = b43_is_hw_radio_enabled(dev);
if (unlikely(enabled != dev->radio_hw_enable)) {
dev->radio_hw_enable = enabled;
report_change = 1;
+ b43_rfkill_update_state(dev);
b43info(wl, "Radio hardware status changed to %s\n",
enabled ? "ENABLED" : "DISABLED");
}
mutex_unlock(&wl->mutex);
- if (unlikely(report_change))
- input_report_key(poll_dev->input, KEY_WLAN, enabled);
+ /* send the radio switch event to the system - note both a key press
+ * and a release are required */
+ if (unlikely(report_change)) {
+ input_report_key(poll_dev->input, KEY_WLAN, 1);
+ input_report_key(poll_dev->input, KEY_WLAN, 0);
+ }
}
/* Called when the RFKILL toggled in software. */
{
struct b43_wldev *dev = data;
struct b43_wl *wl = dev->wl;
- int err = 0;
+ int err = -EBUSY;
if (!wl->rfkill.registered)
return 0;
mutex_lock(&wl->mutex);
- B43_WARN_ON(b43_status(dev) < B43_STAT_INITIALIZED);
+ if (b43_status(dev) < B43_STAT_INITIALIZED)
+ goto out_unlock;
+ err = 0;
switch (state) {
- case RFKILL_STATE_ON:
+ case RFKILL_STATE_UNBLOCKED:
if (!dev->radio_hw_enable) {
/* No luck. We can't toggle the hardware RF-kill
* button from software. */
if (!dev->phy.radio_on)
b43_radio_turn_on(dev);
break;
- case RFKILL_STATE_OFF:
+ case RFKILL_STATE_SOFT_BLOCKED:
if (dev->phy.radio_on)
b43_radio_turn_off(dev, 0);
break;
+ default:
+ b43warn(wl, "Received unexpected rfkill state %d.\n", state);
+ break;
}
out_unlock:
mutex_unlock(&wl->mutex);
snprintf(rfk->name, sizeof(rfk->name),
"b43-%s", wiphy_name(wl->hw->wiphy));
rfk->rfkill->name = rfk->name;
- rfk->rfkill->state = RFKILL_STATE_ON;
+ rfk->rfkill->state = RFKILL_STATE_UNBLOCKED;
rfk->rfkill->data = dev;
rfk->rfkill->toggle_radio = b43_rfkill_soft_toggle;
rfk->rfkill->user_claim_unsupported = 1;
rfk->poll_dev = input_allocate_polled_device();
- if (!rfk->poll_dev)
- goto err_free_rfk;
+ if (!rfk->poll_dev) {
+ rfkill_free(rfk->rfkill);
+ goto err_freed_rfk;
+ }
+
rfk->poll_dev->private = dev;
rfk->poll_dev->poll = b43_rfkill_poll;
rfk->poll_dev->poll_interval = 1000; /* msecs */
+ rfk->poll_dev->input->name = rfk->name;
+ rfk->poll_dev->input->id.bustype = BUS_HOST;
+ rfk->poll_dev->input->id.vendor = dev->dev->bus->boardinfo.vendor;
+ rfk->poll_dev->input->evbit[0] = BIT(EV_KEY);
+ set_bit(KEY_WLAN, rfk->poll_dev->input->keybit);
+
err = rfkill_register(rfk->rfkill);
if (err)
goto err_free_polldev;
+
+#ifdef CONFIG_RFKILL_INPUT_MODULE
+ /* B43 RF-kill isn't useful without the rfkill-input subsystem.
+ * Try to load the module. */
+ err = request_module("rfkill-input");
+ if (err)
+ b43warn(wl, "Failed to load the rfkill-input module. "
+ "The built-in radio LED will not work.\n");
+#endif /* CONFIG_RFKILL_INPUT */
+
err = input_register_polled_device(rfk->poll_dev);
if (err)
goto err_unreg_rfk;
err_free_polldev:
input_free_polled_device(rfk->poll_dev);
rfk->poll_dev = NULL;
-err_free_rfk:
- rfkill_free(rfk->rfkill);
+err_freed_rfk:
rfk->rfkill = NULL;
out_error:
rfk->registered = 0;
rfkill_unregister(rfk->rfkill);
input_free_polled_device(rfk->poll_dev);
rfk->poll_dev = NULL;
- rfkill_free(rfk->rfkill);
rfk->rfkill = NULL;
}