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authorSujith2008-11-24 07:37:55 +0100
committerJohn W. Linville2008-11-26 15:47:49 +0100
commitff37e337beb838d4c2540fa93b2c4c632ee17750 (patch)
tree649d6dfedaef70558b222cc75e952193147449ed /drivers/net/wireless/ath9k/beacon.c
parentnl80211: Change max TX power to be in mBm instead of dBm (diff)
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ath9k: Code scrub
Merge core.c and base.c Remove Antenna Diversity (unused now). Remove unused chainmask handling code. Comment, indentation scrub. Signed-off-by: Sujith <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath9k/beacon.c')
-rw-r--r--drivers/net/wireless/ath9k/beacon.c80
1 files changed, 14 insertions, 66 deletions
diff --git a/drivers/net/wireless/ath9k/beacon.c b/drivers/net/wireless/ath9k/beacon.c
index dcf23834194c..377d2df05316 100644
--- a/drivers/net/wireless/ath9k/beacon.c
+++ b/drivers/net/wireless/ath9k/beacon.c
@@ -14,13 +14,9 @@
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
- /* Implementation of beacon processing. */
-
#include "core.h"
/*
- * Configure parameters for the beacon queue
- *
* This function will modify certain transmit queue properties depending on
* the operating mode of the station (AP or AdHoc). Parameters are AIFS
* settings and channel width min/max
@@ -54,9 +50,15 @@ static int ath_beaconq_config(struct ath_softc *sc)
}
}
+static void ath_bstuck_process(struct ath_softc *sc)
+{
+ DPRINTF(sc, ATH_DBG_BEACON,
+ "%s: stuck beacon; resetting (bmiss count %u)\n",
+ __func__, sc->sc_bmisscount);
+ ath_reset(sc, false);
+}
+
/*
- * Setup the beacon frame for transmit.
- *
* Associates the beacon frame buffer with a transmit descriptor. Will set
* up all required antenna switch parameters, rate codes, and channel flags.
* Beacons are always sent out at the lowest rate, and are not retried.
@@ -138,14 +140,7 @@ static void ath_beacon_setup(struct ath_softc *sc,
ctsrate, ctsduration, series, 4, 0);
}
-/*
- * Generate beacon frame and queue cab data for a vap.
- *
- * Updates the contents of the beacon frame. It is assumed that the buffer for
- * the beacon frame has been allocated in the ATH object, and simply needs to
- * be filled for this cycle. Also, any CAB (crap after beacon?) traffic will
- * be added to the beacon frame at this point.
-*/
+/* Generate beacon frame and queue cab data for a vap */
static struct ath_buf *ath_beacon_generate(struct ath_softc *sc, int if_id)
{
struct ath_buf *bf;
@@ -275,14 +270,6 @@ static void ath_beacon_start_adhoc(struct ath_softc *sc, int if_id)
sc->sc_bhalq, ito64(bf->bf_daddr), bf->bf_desc);
}
-/*
- * Setup a h/w transmit queue for beacons.
- *
- * This function allocates an information structure (struct ath9k_txq_info)
- * on the stack, sets some specific parameters (zero out channel width
- * min/max, and enable aifs). The info structure does not need to be
- * persistant.
-*/
int ath_beaconq_setup(struct ath_hal *ah)
{
struct ath9k_tx_queue_info qi;
@@ -295,14 +282,6 @@ int ath_beaconq_setup(struct ath_hal *ah)
return ath9k_hw_setuptxqueue(ah, ATH9K_TX_QUEUE_BEACON, &qi);
}
-
-/*
- * Allocate and setup an initial beacon frame.
- *
- * Allocate a beacon state variable for a specific VAP instance created on
- * the ATH interface. This routine also calculates the beacon "slot" for
- * staggared beacons in the mBSSID case.
-*/
int ath_beacon_alloc(struct ath_softc *sc, int if_id)
{
struct ieee80211_vif *vif;
@@ -321,7 +300,6 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
if (!avp->av_bcbuf) {
/* Allocate beacon state for hostap/ibss. We know
* a buffer is available. */
-
avp->av_bcbuf = list_first_entry(&sc->sc_bbuf,
struct ath_buf, list);
list_del(&avp->av_bcbuf->list);
@@ -427,12 +405,6 @@ int ath_beacon_alloc(struct ath_softc *sc, int if_id)
return 0;
}
-/*
- * Reclaim beacon resources and return buffer to the pool.
- *
- * Checks the VAP to put the beacon frame buffer back to the ATH object
- * queue, and de-allocates any skbs that were sent as CAB traffic.
-*/
void ath_beacon_return(struct ath_softc *sc, struct ath_vap *avp)
{
if (avp->av_bcbuf != NULL) {
@@ -458,13 +430,6 @@ void ath_beacon_return(struct ath_softc *sc, struct ath_vap *avp)
}
}
-/*
- * Tasklet for Sending Beacons
- *
- * Transmit one or more beacon frames at SWBA. Dynamic updates to the frame
- * contents are done as needed and the slot time is also adjusted based on
- * current state.
-*/
void ath9k_beacon_tasklet(unsigned long data)
{
struct ath_softc *sc = (struct ath_softc *)data;
@@ -481,9 +446,7 @@ void ath9k_beacon_tasklet(unsigned long data)
if (sc->sc_flags & SC_OP_NO_RESET) {
show_cycles = ath9k_hw_GetMibCycleCountsPct(ah,
- &rx_clear,
- &rx_frame,
- &tx_frame);
+ &rx_clear, &rx_frame, &tx_frame);
}
/*
@@ -605,9 +568,10 @@ void ath9k_beacon_tasklet(unsigned long data)
if (sc->sc_updateslot == UPDATE) {
sc->sc_updateslot = COMMIT; /* commit next beacon */
sc->sc_slotupdate = slot;
- } else if (sc->sc_updateslot == COMMIT && sc->sc_slotupdate == slot)
- ath_setslottime(sc); /* commit change to hardware */
-
+ } else if (sc->sc_updateslot == COMMIT && sc->sc_slotupdate == slot) {
+ ath9k_hw_setslottime(sc->sc_ah, sc->sc_slottime);
+ sc->sc_updateslot = OK;
+ }
if (bfaddr != 0) {
/*
* Stop any current dma and put the new frame(s) on the queue.
@@ -630,20 +594,6 @@ void ath9k_beacon_tasklet(unsigned long data)
}
/*
- * Tasklet for Beacon Stuck processing
- *
- * Processing for Beacon Stuck.
- * Basically resets the chip.
-*/
-void ath_bstuck_process(struct ath_softc *sc)
-{
- DPRINTF(sc, ATH_DBG_BEACON,
- "%s: stuck beacon; resetting (bmiss count %u)\n",
- __func__, sc->sc_bmisscount);
- ath_reset(sc, false);
-}
-
-/*
* Configure the beacon and sleep timers.
*
* When operating as an AP this resets the TSF and sets
@@ -886,8 +836,6 @@ void ath_beacon_config(struct ath_softc *sc, int if_id)
}
}
-/* Function to collect beacon rssi data and resync beacon if necessary */
-
void ath_beacon_sync(struct ath_softc *sc, int if_id)
{
/*