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rt2x00: Split rt2x00lib_write_tx_desc()

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Split rt2x00lib_write_tx_desc() up into a TX descriptor initializor
and TX descriptor writer.

This split is required to properly allow mac80211 to move its
tx_control structure into the skb->cb array.
The rt2x00queue_create_tx_descriptor() function will read all tx control
information and convert it into a rt2x00 TX descriptor information structure.
After that function is complete, we have all information we needed from the
tx control structure and are free to start writing into the skb->cb array
for our own purposes.
rt2x00queue_write_tx_descriptor() will be in charge of really sending
the TX descriptor to the hardware and kicking the TX queue.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ivo van Doorn
2008-05-10 13:46:13 +02:00
committed by John W. Linville
parent 4de36fe5ab
commit 7050ec821c
11 changed files with 265 additions and 163 deletions
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11
drivers/net/wireless/rt2x00/rt2400pci.c
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@@ -1492,12 +1492,21 @@ static int rt2400pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
struct rt2x00_intf *intf = vif_to_intf(control->vif);
struct queue_entry_priv_pci_tx *priv_tx;
struct skb_frame_desc *skbdesc;
struct txentry_desc txdesc;
u32 reg;
if (unlikely(!intf->beacon))
return -ENOBUFS;
priv_tx = intf->beacon->priv_data;
/*
* Copy all TX descriptor information into txdesc,
* after that we are free to use the skb->cb array
* for our information.
*/
intf->beacon->skb = skb;
rt2x00queue_create_tx_descriptor(intf->beacon, &txdesc, control);
/*
* Fill in skb descriptor
*/
@@ -1525,8 +1534,8 @@ static int rt2400pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb,
* Write entire beacon with descriptor to register,
* and kick the beacon generator.
*/
rt2x00lib_write_tx_desc(rt2x00dev, skb, control);
memcpy(priv_tx->data, skb->data, skb->len);
rt2x00queue_write_tx_descriptor(intf->beacon, &txdesc);
rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, QID_BEACON);
return 0;