diff options
Diffstat (limited to 'drivers/net/wireless/wl12xx/main.c')
| -rw-r--r-- | drivers/net/wireless/wl12xx/main.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/net/wireless/wl12xx/main.c b/drivers/net/wireless/wl12xx/main.c index 3c381ceadb98..54ac6757c39b 100644 --- a/drivers/net/wireless/wl12xx/main.c +++ b/drivers/net/wireless/wl12xx/main.c @@ -1174,6 +1174,48 @@ static void wl1271_op_tx(struct ieee80211_hw *hw, struct sk_buff *skb) spin_unlock_irqrestore(&wl->wl_lock, flags); } +#define TX_DUMMY_PACKET_SIZE 1400 +int wl1271_tx_dummy_packet(struct wl1271 *wl) +{ + struct sk_buff *skb = NULL; + struct ieee80211_hdr_3addr *hdr; + int ret = 0; + + skb = dev_alloc_skb( + sizeof(struct wl1271_tx_hw_descr) + sizeof(*hdr) + + TX_DUMMY_PACKET_SIZE); + if (!skb) { + wl1271_warning("failed to allocate buffer for dummy packet"); + ret = -ENOMEM; + goto out; + } + + skb_reserve(skb, sizeof(struct wl1271_tx_hw_descr)); + + hdr = (struct ieee80211_hdr_3addr *) skb_put(skb, sizeof(*hdr)); + memset(hdr, 0, sizeof(*hdr)); + hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA | + IEEE80211_FCTL_TODS | + IEEE80211_STYPE_NULLFUNC); + + memcpy(hdr->addr1, wl->bssid, ETH_ALEN); + memcpy(hdr->addr2, wl->mac_addr, ETH_ALEN); + memcpy(hdr->addr3, wl->bssid, ETH_ALEN); + + skb_put(skb, TX_DUMMY_PACKET_SIZE); + + memset(skb->data, 0, TX_DUMMY_PACKET_SIZE); + + skb->pkt_type = TX_PKT_TYPE_DUMMY_REQ; + /* CONF_TX_AC_VO */ + skb->queue_mapping = 0; + + wl1271_op_tx(wl->hw, skb); + +out: + return ret; +} + static struct notifier_block wl1271_dev_notifier = { .notifier_call = wl1271_dev_notify, }; |