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Subject[PATCH 1/1] Ath5k: add AP mode
Date
Add support for AP mode. This involves:
- enablement in ath5k_beacon_config -- initialize beacon timer
- add AP to the supported modes in ath5k_add_interface
- handle beacon change even for AP in ath5k_config_interface
- remove useless test for IBSS in ath5k_beacon_update

Note that it doesn't enable the AP mode for the driver. It must
be enabled by NL80211_IFTYPE_AP bit added to interface_modes.

v2:
Fixed opmode constant (IEEE80211_ to NL80211_)

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Nick Kossifidis <mickflemm@gmail.com>
Cc: Luis R. Rodriguez <mcgrof@gmail.com>
---
drivers/net/wireless/ath5k/base.c | 42 +++++++++++++++----------------------
1 files changed, 17 insertions(+), 25 deletions(-)

diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c
index 9b95c40..72b5e47 100644
--- a/drivers/net/wireless/ath5k/base.c
+++ b/drivers/net/wireless/ath5k/base.c
@@ -238,8 +238,7 @@ static int ath5k_get_tx_stats(struct ieee80211_hw *hw,
struct ieee80211_tx_queue_stats *stats);
static u64 ath5k_get_tsf(struct ieee80211_hw *hw);
static void ath5k_reset_tsf(struct ieee80211_hw *hw);
-static int ath5k_beacon_update(struct ieee80211_hw *hw,
- struct sk_buff *skb);
+static int ath5k_beacon_update(struct ath5k_softc *sc, struct sk_buff *skb);

static struct ieee80211_ops ath5k_hw_ops = {
.tx = ath5k_tx,
@@ -2157,8 +2156,6 @@ ath5k_beacon_update_timers(struct ath5k_softc *sc, u64 bc_tsf)
*
* In IBSS mode we use a self-linked tx descriptor if possible. We enable SWBA
* interrupts to detect TSF updates only.
- *
- * AP mode is missing.
*/
static void
ath5k_beacon_config(struct ath5k_softc *sc)
@@ -2171,7 +2168,8 @@ ath5k_beacon_config(struct ath5k_softc *sc)

if (sc->opmode == NL80211_IFTYPE_STATION) {
sc->imask |= AR5K_INT_BMISS;
- } else if (sc->opmode == NL80211_IFTYPE_ADHOC) {
+ } else if (sc->opmode == NL80211_IFTYPE_ADHOC ||
+ sc->opmode == NL80211_IFTYPE_AP) {
/*
* In IBSS mode we use a self-linked tx descriptor and let the
* hardware send the beacons automatically. We have to load it
@@ -2183,13 +2181,15 @@ ath5k_beacon_config(struct ath5k_softc *sc)

sc->imask |= AR5K_INT_SWBA;

- if (ath5k_hw_hasveol(ah)) {
- spin_lock(&sc->block);
- ath5k_beacon_send(sc);
- spin_unlock(&sc->block);
- }
+ if (sc->opmode == NL80211_IFTYPE_ADHOC) {
+ if (ath5k_hw_hasveol(ah)) {
+ spin_lock(&sc->block);
+ ath5k_beacon_send(sc);
+ spin_unlock(&sc->block);
+ }
+ } else
+ ath5k_beacon_update_timers(sc, -1);
}
- /* TODO else AP */

ath5k_hw_set_imr(ah, sc->imask);
}
@@ -2741,6 +2741,7 @@ static int ath5k_add_interface(struct ieee80211_hw *hw,
sc->vif = conf->vif;

switch (conf->type) {
+ case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_STATION:
case NL80211_IFTYPE_ADHOC:
case NL80211_IFTYPE_MONITOR:
@@ -2804,7 +2805,7 @@ ath5k_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
ret = -EIO;
goto unlock;
}
- if (conf->bssid) {
+ if (conf->changed & IEEE80211_IFCC_BSSID && conf->bssid) {
/* Cache for later use during resets */
memcpy(ah->ah_bssid, conf->bssid, ETH_ALEN);
/* XXX: assoc id is set to 0 for now, mac80211 doesn't have
@@ -2812,18 +2813,16 @@ ath5k_config_interface(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
ath5k_hw_set_associd(ah, ah->ah_bssid, 0);
mmiowb();
}
-
if (conf->changed & IEEE80211_IFCC_BEACON &&
- vif->type == NL80211_IFTYPE_ADHOC) {
+ (vif->type == NL80211_IFTYPE_ADHOC ||
+ vif->type == NL80211_IFTYPE_AP)) {
struct sk_buff *beacon = ieee80211_beacon_get(hw, vif);
if (!beacon) {
ret = -ENOMEM;
goto unlock;
}
- /* call old handler for now */
- ath5k_beacon_update(hw, beacon);
+ ath5k_beacon_update(sc, beacon);
}
-
mutex_unlock(&sc->lock);

return ath5k_reset_wake(sc);
@@ -3055,19 +3054,13 @@ ath5k_reset_tsf(struct ieee80211_hw *hw)
}

static int
-ath5k_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
+ath5k_beacon_update(struct ath5k_softc *sc, struct sk_buff *skb)
{
- struct ath5k_softc *sc = hw->priv;
unsigned long flags;
int ret;

ath5k_debug_dump_skb(sc, skb, "BC ", 1);

- if (sc->opmode != NL80211_IFTYPE_ADHOC) {
- ret = -EIO;
- goto end;
- }
-
spin_lock_irqsave(&sc->block, flags);
ath5k_txbuf_free(sc, sc->bbuf);
sc->bbuf->skb = skb;
@@ -3080,7 +3073,6 @@ ath5k_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
mmiowb();
}

-end:
return ret;
}

--
1.6.0.2


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