コード例 #1
0
ファイル: htc_drv_beacon.c プロジェクト: CSCLOG/beaglebone
static void ath9k_htc_beacon_config_ap(struct ath9k_htc_priv *priv,
				       struct htc_beacon_config *bss_conf)
{
	struct ath_common *common = ath9k_hw_common(priv->ah);
	enum ath9k_int imask = 0;
	u32 nexttbtt, intval, tsftu;
	__be32 htc_imask = 0;
	int ret __attribute__ ((unused));
	u8 cmd_rsp;
	u64 tsf;

	intval = bss_conf->beacon_interval;
	intval /= ATH9K_HTC_MAX_BCN_VIF;
	nexttbtt = intval;

	/*
	 * To reduce beacon misses under heavy TX load,
	 * set the beacon response time to a larger value.
	 */
	if (intval > DEFAULT_SWBA_RESPONSE)
		priv->ah->config.sw_beacon_response_time = DEFAULT_SWBA_RESPONSE;
	else
		priv->ah->config.sw_beacon_response_time = MIN_SWBA_RESPONSE;

	if (priv->op_flags & OP_TSF_RESET) {
		ath9k_hw_reset_tsf(priv->ah);
		priv->op_flags &= ~OP_TSF_RESET;
	} else {
		/*
		 * Pull nexttbtt forward to reflect the current TSF.
		 */
		tsf = ath9k_hw_gettsf64(priv->ah);
		tsftu = TSF_TO_TU(tsf >> 32, tsf) + FUDGE;
		do {
			nexttbtt += intval;
		} while (nexttbtt < tsftu);
	}

	if (priv->op_flags & OP_ENABLE_BEACON)
		imask |= ATH9K_INT_SWBA;

	ath_dbg(common, ATH_DBG_CONFIG,
		"AP Beacon config, intval: %d, nexttbtt: %u, resp_time: %d "
		"imask: 0x%x\n",
		bss_conf->beacon_interval, nexttbtt,
		priv->ah->config.sw_beacon_response_time, imask);

	ath9k_htc_beaconq_config(priv);

	WMI_CMD(WMI_DISABLE_INTR_CMDID);
	ath9k_hw_beaconinit(priv->ah, TU_TO_USEC(nexttbtt), TU_TO_USEC(intval));
	priv->cur_beacon_conf.bmiss_cnt = 0;
	htc_imask = cpu_to_be32(imask);
	WMI_CMD_BUF(WMI_ENABLE_INTR_CMDID, &htc_imask);
}
コード例 #2
0
static int ath9k_htc_conf_tx(struct ieee80211_hw *hw,
			     struct ieee80211_vif *vif, u16 queue,
			     const struct ieee80211_tx_queue_params *params)
{
	struct ath9k_htc_priv *priv = hw->priv;
	struct ath_common *common = ath9k_hw_common(priv->ah);
	struct ath9k_tx_queue_info qi;
	int ret = 0, qnum;

	if (queue >= IEEE80211_NUM_ACS)
		return 0;

	mutex_lock(&priv->mutex);
	ath9k_htc_ps_wakeup(priv);

	memset(&qi, 0, sizeof(struct ath9k_tx_queue_info));

	qi.tqi_aifs = params->aifs;
	qi.tqi_cwmin = params->cw_min;
	qi.tqi_cwmax = params->cw_max;
	qi.tqi_burstTime = params->txop * 32;

	qnum = get_hw_qnum(queue, priv->hwq_map);

	ath_dbg(common, CONFIG,
		"Configure tx [queue/hwq] [%d/%d],  aifs: %d, cw_min: %d, cw_max: %d, txop: %d\n",
		queue, qnum, params->aifs, params->cw_min,
		params->cw_max, params->txop);

	ret = ath_htc_txq_update(priv, qnum, &qi);
	if (ret) {
		ath_err(common, "TXQ Update failed\n");
		goto out;
	}

	if ((priv->ah->opmode == NL80211_IFTYPE_ADHOC) &&
	    (qnum == priv->hwq_map[IEEE80211_AC_BE]))
		    ath9k_htc_beaconq_config(priv);
out:
	ath9k_htc_ps_restore(priv);
	mutex_unlock(&priv->mutex);

	return ret;
}