diff options
Diffstat (limited to 'drivers/staging/cw1200/txrx.c')
| -rw-r--r-- | drivers/staging/cw1200/txrx.c | 67 |
1 files changed, 65 insertions, 2 deletions
diff --git a/drivers/staging/cw1200/txrx.c b/drivers/staging/cw1200/txrx.c index 1742af0ac8e..3e8b84fa43c 100644 --- a/drivers/staging/cw1200/txrx.c +++ b/drivers/staging/cw1200/txrx.c @@ -371,12 +371,13 @@ cw1200_get_tx_rate(const struct cw1200_common *priv, /* NOTE: cw1200_skb_to_wsm executes in atomic context. */ int cw1200_skb_to_wsm(struct cw1200_common *priv, struct sk_buff *skb, - struct wsm_tx *wsm) + struct wsm_tx *wsm, struct tx_info *txinfo) { bool tx_policy_renew = false; struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb); const struct ieee80211_rate *rate = cw1200_get_tx_rate(priv, &tx_info->control.rates[0]); + u8 priority = 0; memset(wsm, 0, sizeof(*wsm)); wsm->hdr.len = __cpu_to_le16(skb->len); @@ -409,6 +410,32 @@ int cw1200_skb_to_wsm(struct cw1200_common *priv, struct sk_buff *skb, } wsm->queueId = wsm_queue_id_to_wsm(skb_get_queue_mapping(skb)); + + /* BT Coex specific handling */ + if (priv->is_BT_Present) { + struct ieee80211_hdr *hdr = + (struct ieee80211_hdr *)(skb->data + sizeof(struct wsm_tx)); + + if (cpu_to_be16(txinfo->ethertype) == ETH_P_PAE) + priority = WSM_EPTA_PRIORITY_EAPOL; + else if (ieee80211_is_action(hdr->frame_control)) + priority = WSM_EPTA_PRIORITY_ACTION; + else if (ieee80211_is_mgmt(hdr->frame_control)) + priority = WSM_EPTA_PRIORITY_MGT; + else if ((wsm->queueId == WSM_QUEUE_VOICE)) + priority = WSM_EPTA_PRIORITY_VOICE; + else if ((wsm->queueId == WSM_QUEUE_VIDEO)) + priority = WSM_EPTA_PRIORITY_VIDEO; + else + priority = WSM_EPTA_PRIORITY_DATA; + + txrx_printk(KERN_DEBUG "[TX] EPTA priority %x.\n", + ((priority) & 0x7)); + + /* Set EPTA priority */ + wsm->flags |= (((priority) & 0x7) << 1); + } + return 0; } @@ -427,6 +454,7 @@ void cw1200_tx(struct ieee80211_hw *dev, struct sk_buff *skb) int link_id; int ret; int i; + struct tx_info txinfo; if (likely(tx_info->control.sta && sta_priv->link_id)) link_id = sta_priv->link_id; @@ -465,6 +493,39 @@ void cw1200_tx(struct ieee80211_hw *dev, struct sk_buff *skb) spin_unlock_bh(&priv->buffered_multicasts_lock); } + /* BT Coex support related configuration */ + if (priv->is_BT_Present) { + txinfo.ethertype = 0; + + if (ieee80211_is_data_qos(hdr->frame_control) || + ieee80211_is_data(hdr->frame_control)) { + unsigned int headerlen = + ieee80211_get_hdrlen_from_skb(skb); + + /* Skip LLC SNAP header (+6) */ + if (headerlen > 0) + txinfo.ethertype = + *((u16 *)(skb->data + headerlen + 6)); + } + else if (ieee80211_is_assoc_req(hdr->frame_control) || + ieee80211_is_reassoc_req(hdr->frame_control)) { + struct ieee80211_mgmt *mgt_frame = + (struct ieee80211_mgmt *)skb->data; + + if (mgt_frame->u.assoc_req.listen_interval < + priv->listen_interval) { + txrx_printk(KERN_DEBUG + "Modified Listen Interval to %x from %x\n", + priv->listen_interval, + mgt_frame->u.assoc_req.listen_interval); + /* Replace listen interval derieved from + the one read from SDD */ + mgt_frame->u.assoc_req.listen_interval = + priv->listen_interval; + } + } + } + /* IV/ICV injection. */ /* TODO: Quite unoptimal. It's better co modify mac80211 * to reserve space for IV */ @@ -543,8 +604,10 @@ void cw1200_tx(struct ieee80211_hw *dev, struct sk_buff *skb) queue_work(priv->workqueue, &priv->multicast_start_work); } + + txinfo.link_id = link_id; ret = cw1200_queue_put(&priv->tx_queue[queue], priv, skb, - link_id); + &txinfo); spin_unlock_bh(&priv->buffered_multicasts_lock); if (!WARN_ON(ret)) |