b43: Implement sw scan callbacks
This implements the new sw scan callbacks in b43.
They are currently used to turn CFP update in the microcode off while scanning.
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index ef51482..6d52bae 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -4182,6 +4182,7 @@
if ((bus->bustype == SSB_BUSTYPE_PCI) &&
(bus->pcicore.dev->id.revision <= 10))
hf |= B43_HF_PCISCW; /* PCI slow clock workaround. */
+ hf &= ~B43_HF_SKCFPUP;
b43_hf_write(dev, hf);
b43_set_retry_limits(dev, B43_DEFAULT_SHORT_RETRY_LIMIT,
@@ -4404,6 +4405,34 @@
B43_WARN_ON(!vif || wl->vif != vif);
}
+static void b43_op_sw_scan_start_notifier(struct ieee80211_hw *hw)
+{
+ struct b43_wl *wl = hw_to_b43_wl(hw);
+ struct b43_wldev *dev;
+
+ mutex_lock(&wl->mutex);
+ dev = wl->current_dev;
+ if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) {
+ /* Disable CFP update during scan on other channels. */
+ b43_hf_write(dev, b43_hf_read(dev) | B43_HF_SKCFPUP);
+ }
+ mutex_unlock(&wl->mutex);
+}
+
+static void b43_op_sw_scan_complete_notifier(struct ieee80211_hw *hw)
+{
+ struct b43_wl *wl = hw_to_b43_wl(hw);
+ struct b43_wldev *dev;
+
+ mutex_lock(&wl->mutex);
+ dev = wl->current_dev;
+ if (dev && (b43_status(dev) >= B43_STAT_INITIALIZED)) {
+ /* Re-enable CFP update. */
+ b43_hf_write(dev, b43_hf_read(dev) & ~B43_HF_SKCFPUP);
+ }
+ mutex_unlock(&wl->mutex);
+}
+
static const struct ieee80211_ops b43_hw_ops = {
.tx = b43_op_tx,
.conf_tx = b43_op_conf_tx,
@@ -4422,6 +4451,8 @@
.stop = b43_op_stop,
.set_tim = b43_op_beacon_set_tim,
.sta_notify = b43_op_sta_notify,
+ .sw_scan_start = b43_op_sw_scan_start_notifier,
+ .sw_scan_complete = b43_op_sw_scan_complete_notifier,
};
/* Hard-reset the chip. Do not call this directly.