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rt2x00: Fix beaconing on rt2800.

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According to the Ralink vendor driver for rt2800 we don't need a full
TXD for a beacon but just a TXWI in front of the actual beacon.
Fix the rt2800pci and rt2800usb beaconing code accordingly.

Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Gertjan van Wingerde 2010-05-08 23:40:26 +02:00 committed by John W. Linville
parent f224f4ef79
commit 3b9f0ed78c
2 changed files with 15 additions and 16 deletions
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17
drivers/net/wireless/rt2x00/rt2800pci.c
View File

@ -682,7 +682,6 @@ static void rt2800pci_write_beacon(struct queue_entry *entry,
struct txentry_desc *txdesc)
{
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
unsigned int beacon_base;
u32 reg;
@ -695,15 +694,17 @@ static void rt2800pci_write_beacon(struct queue_entry *entry,
rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg);
/*
* Write entire beacon with descriptor to register.
* Add the TXWI for the beacon to the skb.
*/
rt2800_write_txwi(entry->skb, txdesc);
skb_push(entry->skb, TXWI_DESC_SIZE);
/*
* Write entire beacon with TXWI to register.
*/
beacon_base = HW_BEACON_OFFSET(entry->entry_idx);
rt2800_register_multiwrite(rt2x00dev,
beacon_base,
skbdesc->desc, skbdesc->desc_len);
rt2800_register_multiwrite(rt2x00dev,
beacon_base + skbdesc->desc_len,
entry->skb->data, entry->skb->len);
rt2800_register_multiwrite(rt2x00dev, beacon_base,
entry->skb->data, entry->skb->len);
/*
* Enable beaconing again.

14
drivers/net/wireless/rt2x00/rt2800usb.c
View File

@ -431,17 +431,9 @@ static void rt2800usb_write_beacon(struct queue_entry *entry,
struct txentry_desc *txdesc)
{
struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
unsigned int beacon_base;
u32 reg;
/*
* Add the descriptor in front of the skb.
*/
skb_push(entry->skb, entry->queue->desc_size);
memcpy(entry->skb->data, skbdesc->desc, skbdesc->desc_len);
skbdesc->desc = entry->skb->data;
/*
* Disable beaconing while we are reloading the beacon data,
* otherwise we might be sending out invalid data.
@ -450,6 +442,12 @@ static void rt2800usb_write_beacon(struct queue_entry *entry,
rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 0);
rt2800_register_write(rt2x00dev, BCN_TIME_CFG, reg);
/*
* Add the TXWI for the beacon to the skb.
*/
rt2800_write_txwi(entry->skb, txdesc);
skb_push(entry->skb, TXWI_DESC_SIZE);
/*
* Write entire beacon with descriptor to register.
*/