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| author | Shahar Levi <shahar_levi@ti.com> | 2011-03-06 16:32:14 +0200 |
|---|---|---|
| committer | Luciano Coelho <coelho@ti.com> | 2011-04-19 16:49:01 +0300 |
| commit | ae47c45fd02fdf88d57adc370e78e7a01e2bfcbc (patch) | |
| tree | 3def0959f5332c2fd1279ffe898db0c554c1f819 /drivers/net/wireless/wl12xx/main.c | |
| parent | ae77eccf04f8c36769bdba334e1bbcc7bb9d3644 (diff) | |
| download | lwn-ae47c45fd02fdf88d57adc370e78e7a01e2bfcbc.tar.gz lwn-ae47c45fd02fdf88d57adc370e78e7a01e2bfcbc.zip | |
wl12xx: 1281/1283 support - Add dummy packet support
Support sending dummy packet to wl128x FW as results of
dummy packet event. That is part of dynamic TX mem blocks mechanism.
Only send dummy packet when not in AP mode.
[Even though the DUMMY_PACKET_EVENT_ID and the
STA_REMOVE_COMPLETE_EVENT_ID events are defined to the same value, we
need to treat them separately in the code. Keep the check and enable
STA_REMOVE_COMPLETE_EVENT_ID for AP mode and DUMMY_PACKET_EVENT_ID for
STA. Moved one warning to a cleaner place. Use WL1271_TID_MGMT for
dummy packets -- Luca]
Signed-off-by: Shahar Levi <shahar_levi@ti.com>
Reviewed-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
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, }; |