Beispiel #1
0
static int ath9k_wmi_cmd_issue(struct wmi *wmi,
			       struct sk_buff *skb,
			       enum wmi_cmd_id cmd, u16 len)
{
	struct wmi_cmd_hdr *hdr;

	hdr = (struct wmi_cmd_hdr *) skb_push(skb, sizeof(struct wmi_cmd_hdr));
	hdr->command_id = cpu_to_be16(cmd);
	hdr->seq_no = cpu_to_be16(++wmi->tx_seq_id);

	return htc_send(wmi->htc, skb, wmi->ctrl_epid, NULL);
}
Beispiel #2
0
void ath9k_htc_swba(struct ath9k_htc_priv *priv, u8 beacon_pending)
{
	struct ath9k_htc_vif *avp = (void *)priv->vif->drv_priv;
	struct tx_beacon_header beacon_hdr;
	struct ath9k_htc_tx_ctl tx_ctl;
	struct ieee80211_tx_info *info;
	struct sk_buff *beacon;
	u8 *tx_fhdr;

	memset(&beacon_hdr, 0, sizeof(struct tx_beacon_header));
	memset(&tx_ctl, 0, sizeof(struct ath9k_htc_tx_ctl));

	/* FIXME: Handle BMISS */
	if (beacon_pending != 0) {
		priv->bmiss_cnt++;
		return;
	}

	spin_lock_bh(&priv->beacon_lock);

	if (unlikely(priv->op_flags & OP_SCANNING)) {
		spin_unlock_bh(&priv->beacon_lock);
		return;
	}

	/* Get a new beacon */
	beacon = ieee80211_beacon_get(priv->hw, priv->vif);
	if (!beacon) {
		spin_unlock_bh(&priv->beacon_lock);
		return;
	}

	info = IEEE80211_SKB_CB(beacon);
	if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
		struct ieee80211_hdr *hdr =
			(struct ieee80211_hdr *) beacon->data;
		priv->seq_no += 0x10;
		hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
		hdr->seq_ctrl |= cpu_to_le16(priv->seq_no);
	}

	tx_ctl.type = ATH9K_HTC_NORMAL;
	beacon_hdr.vif_index = avp->index;
	tx_fhdr = skb_push(beacon, sizeof(beacon_hdr));
	memcpy(tx_fhdr, (u8 *) &beacon_hdr, sizeof(beacon_hdr));

	htc_send(priv->htc, beacon, priv->beacon_ep, &tx_ctl);

	spin_unlock_bh(&priv->beacon_lock);
}
static void ath9k_htc_send_beacon(struct ath9k_htc_priv *priv,
				  int slot)
{
	struct ath_common *common = ath9k_hw_common(priv->ah);
	struct ieee80211_vif *vif;
	struct ath9k_htc_vif *avp;
	struct tx_beacon_header beacon_hdr;
	struct ath9k_htc_tx_ctl *tx_ctl;
	struct ieee80211_tx_info *info;
	struct ieee80211_mgmt *mgmt;
	struct sk_buff *beacon;
	u8 *tx_fhdr;
	int ret;

	memset(&beacon_hdr, 0, sizeof(struct tx_beacon_header));

	spin_lock_bh(&priv->beacon_lock);

	vif = priv->cur_beacon_conf.bslot[slot];
	avp = (struct ath9k_htc_vif *)vif->drv_priv;

	if (unlikely(priv->op_flags & OP_SCANNING)) {
		spin_unlock_bh(&priv->beacon_lock);
		return;
	}

	/* Get a new beacon */
	beacon = ieee80211_beacon_get(priv->hw, vif);
	if (!beacon) {
		spin_unlock_bh(&priv->beacon_lock);
		return;
	}

	/*
	 * Update the TSF adjust value here, the HW will
	 * add this value for every beacon.
	 */
	mgmt = (struct ieee80211_mgmt *)beacon->data;
	mgmt->u.beacon.timestamp = avp->tsfadjust;

	info = IEEE80211_SKB_CB(beacon);
	if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) {
		struct ieee80211_hdr *hdr =
			(struct ieee80211_hdr *) beacon->data;
		avp->seq_no += 0x10;
		hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG);
		hdr->seq_ctrl |= cpu_to_le16(avp->seq_no);
	}

	tx_ctl = HTC_SKB_CB(beacon);
	memset(tx_ctl, 0, sizeof(*tx_ctl));

	tx_ctl->type = ATH9K_HTC_BEACON;
	tx_ctl->epid = priv->beacon_ep;

	beacon_hdr.vif_index = avp->index;
	tx_fhdr = skb_push(beacon, sizeof(beacon_hdr));
	memcpy(tx_fhdr, (u8 *) &beacon_hdr, sizeof(beacon_hdr));

	ret = htc_send(priv->htc, beacon);
	if (ret != 0) {
		if (ret == -ENOMEM) {
			ath_dbg(common, BSTUCK,
				"Failed to send beacon, no free TX buffer\n");
		}
		dev_kfree_skb_any(beacon);
	}

	spin_unlock_bh(&priv->beacon_lock);
}
Beispiel #4
0
int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb)
{
	struct ieee80211_hdr *hdr;
	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
	struct ieee80211_sta *sta = tx_info->control.sta;
	struct ath9k_htc_sta *ista;
	struct ath9k_htc_tx_ctl tx_ctl;
	enum htc_endpoint_id epid;
	u16 qnum;
	__le16 fc;
	u8 *tx_fhdr;
	u8 sta_idx, vif_idx;

	hdr = (struct ieee80211_hdr *) skb->data;
	fc = hdr->frame_control;

	if (tx_info->control.vif &&
			(struct ath9k_htc_vif *) tx_info->control.vif->drv_priv)
		vif_idx = ((struct ath9k_htc_vif *)
				tx_info->control.vif->drv_priv)->index;
	else
		vif_idx = priv->nvifs;

	if (sta) {
		ista = (struct ath9k_htc_sta *) sta->drv_priv;
		sta_idx = ista->index;
	} else {
		sta_idx = 0;
	}

	memset(&tx_ctl, 0, sizeof(struct ath9k_htc_tx_ctl));

	if (ieee80211_is_data(fc)) {
		struct tx_frame_hdr tx_hdr;
		u8 *qc;

		memset(&tx_hdr, 0, sizeof(struct tx_frame_hdr));

		tx_hdr.node_idx = sta_idx;
		tx_hdr.vif_idx = vif_idx;

		if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
			tx_ctl.type = ATH9K_HTC_AMPDU;
			tx_hdr.data_type = ATH9K_HTC_AMPDU;
		} else {
			tx_ctl.type = ATH9K_HTC_NORMAL;
			tx_hdr.data_type = ATH9K_HTC_NORMAL;
		}

		if (ieee80211_is_data_qos(fc)) {
			qc = ieee80211_get_qos_ctl(hdr);
			tx_hdr.tidno = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
		}

		/* Check for RTS protection */
		if (priv->hw->wiphy->rts_threshold != (u32) -1)
			if (skb->len > priv->hw->wiphy->rts_threshold)
				tx_hdr.flags |= ATH9K_HTC_TX_RTSCTS;

		/* CTS-to-self */
		if (!(tx_hdr.flags & ATH9K_HTC_TX_RTSCTS) &&
		    (priv->op_flags & OP_PROTECT_ENABLE))
			tx_hdr.flags |= ATH9K_HTC_TX_CTSONLY;

		tx_hdr.key_type = ath9k_cmn_get_hw_crypto_keytype(skb);
		if (tx_hdr.key_type == ATH9K_KEY_TYPE_CLEAR)
			tx_hdr.keyix = (u8) ATH9K_TXKEYIX_INVALID;
		else
			tx_hdr.keyix = tx_info->control.hw_key->hw_key_idx;

		tx_fhdr = skb_push(skb, sizeof(tx_hdr));
		memcpy(tx_fhdr, (u8 *) &tx_hdr, sizeof(tx_hdr));

		qnum = skb_get_queue_mapping(skb);

		switch (qnum) {
		case 0:
			TX_QSTAT_INC(WME_AC_VO);
			epid = priv->data_vo_ep;
			break;
		case 1:
			TX_QSTAT_INC(WME_AC_VI);
			epid = priv->data_vi_ep;
			break;
		case 2:
			TX_QSTAT_INC(WME_AC_BE);
			epid = priv->data_be_ep;
			break;
		case 3:
		default:
			TX_QSTAT_INC(WME_AC_BK);
			epid = priv->data_bk_ep;
			break;
		}
	} else {
		struct tx_mgmt_hdr mgmt_hdr;

		memset(&mgmt_hdr, 0, sizeof(struct tx_mgmt_hdr));

		tx_ctl.type = ATH9K_HTC_NORMAL;

		mgmt_hdr.node_idx = sta_idx;
		mgmt_hdr.vif_idx = vif_idx;
		mgmt_hdr.tidno = 0;
		mgmt_hdr.flags = 0;

		mgmt_hdr.key_type = ath9k_cmn_get_hw_crypto_keytype(skb);
		if (mgmt_hdr.key_type == ATH9K_KEY_TYPE_CLEAR)
			mgmt_hdr.keyix = (u8) ATH9K_TXKEYIX_INVALID;
		else
			mgmt_hdr.keyix = tx_info->control.hw_key->hw_key_idx;

		tx_fhdr = skb_push(skb, sizeof(mgmt_hdr));
		memcpy(tx_fhdr, (u8 *) &mgmt_hdr, sizeof(mgmt_hdr));
		epid = priv->mgmt_ep;
	}

	return htc_send(priv->htc, skb, epid, &tx_ctl);
}
int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb)
{
	struct ieee80211_hdr *hdr;
	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
	struct ieee80211_sta *sta = tx_info->control.sta;
	struct ieee80211_vif *vif = tx_info->control.vif;
	struct ath9k_htc_sta *ista;
	struct ath9k_htc_vif *avp;
	struct ath9k_htc_tx_ctl tx_ctl;
	enum htc_endpoint_id epid;
	u16 qnum;
	__le16 fc;
	u8 *tx_fhdr;
	u8 sta_idx, vif_idx;

	hdr = (struct ieee80211_hdr *) skb->data;
	fc = hdr->frame_control;

	/*
	 * Find out on which interface this packet has to be
	 * sent out.
	 */
	if (vif) {
		avp = (struct ath9k_htc_vif *) vif->drv_priv;
		vif_idx = avp->index;
	} else {
		if (!priv->ah->is_monitoring) {
			ath_dbg(ath9k_hw_common(priv->ah), ATH_DBG_XMIT,
				"VIF is null, but no monitor interface !\n");
			return -EINVAL;
		}

		vif_idx = priv->mon_vif_idx;
	}

	/*
	 * Find out which station this packet is destined for.
	 */
	if (sta) {
		ista = (struct ath9k_htc_sta *) sta->drv_priv;
		sta_idx = ista->index;
	} else {
		sta_idx = priv->vif_sta_pos[vif_idx];
	}

	memset(&tx_ctl, 0, sizeof(struct ath9k_htc_tx_ctl));

	if (ieee80211_is_data(fc)) {
		struct tx_frame_hdr tx_hdr;
		u32 flags = 0;
		u8 *qc;

		memset(&tx_hdr, 0, sizeof(struct tx_frame_hdr));

		tx_hdr.node_idx = sta_idx;
		tx_hdr.vif_idx = vif_idx;

		if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
			tx_ctl.type = ATH9K_HTC_AMPDU;
			tx_hdr.data_type = ATH9K_HTC_AMPDU;
		} else {
			tx_ctl.type = ATH9K_HTC_NORMAL;
			tx_hdr.data_type = ATH9K_HTC_NORMAL;
		}

		if (ieee80211_is_data_qos(fc)) {
			qc = ieee80211_get_qos_ctl(hdr);
			tx_hdr.tidno = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
		}

		/* Check for RTS protection */
		if (priv->hw->wiphy->rts_threshold != (u32) -1)
			if (skb->len > priv->hw->wiphy->rts_threshold)
				flags |= ATH9K_HTC_TX_RTSCTS;

		/* CTS-to-self */
		if (!(flags & ATH9K_HTC_TX_RTSCTS) &&
		    (vif && vif->bss_conf.use_cts_prot))
			flags |= ATH9K_HTC_TX_CTSONLY;

		tx_hdr.flags = cpu_to_be32(flags);
		tx_hdr.key_type = ath9k_cmn_get_hw_crypto_keytype(skb);
		if (tx_hdr.key_type == ATH9K_KEY_TYPE_CLEAR)
			tx_hdr.keyix = (u8) ATH9K_TXKEYIX_INVALID;
		else
			tx_hdr.keyix = tx_info->control.hw_key->hw_key_idx;

		tx_fhdr = skb_push(skb, sizeof(tx_hdr));
		memcpy(tx_fhdr, (u8 *) &tx_hdr, sizeof(tx_hdr));

		qnum = skb_get_queue_mapping(skb);

		switch (qnum) {
		case 0:
			TX_QSTAT_INC(WME_AC_VO);
			epid = priv->data_vo_ep;
			break;
		case 1:
			TX_QSTAT_INC(WME_AC_VI);
			epid = priv->data_vi_ep;
			break;
		case 2:
			TX_QSTAT_INC(WME_AC_BE);
			epid = priv->data_be_ep;
			break;
		case 3:
		default:
			TX_QSTAT_INC(WME_AC_BK);
			epid = priv->data_bk_ep;
			break;
		}
	} else {
		struct tx_mgmt_hdr mgmt_hdr;

		memset(&mgmt_hdr, 0, sizeof(struct tx_mgmt_hdr));

		tx_ctl.type = ATH9K_HTC_NORMAL;

		mgmt_hdr.node_idx = sta_idx;
		mgmt_hdr.vif_idx = vif_idx;
		mgmt_hdr.tidno = 0;
		mgmt_hdr.flags = 0;

		mgmt_hdr.key_type = ath9k_cmn_get_hw_crypto_keytype(skb);
		if (mgmt_hdr.key_type == ATH9K_KEY_TYPE_CLEAR)
			mgmt_hdr.keyix = (u8) ATH9K_TXKEYIX_INVALID;
		else
			mgmt_hdr.keyix = tx_info->control.hw_key->hw_key_idx;

		tx_fhdr = skb_push(skb, sizeof(mgmt_hdr));
		memcpy(tx_fhdr, (u8 *) &mgmt_hdr, sizeof(mgmt_hdr));
		epid = priv->mgmt_ep;
	}

	return htc_send(priv->htc, skb, epid, &tx_ctl);
}