commit bd88a7812f1afd50549f3789cacb707b983fef54
author Ivo van Doorn <ivdoorn@gmail.com> Wed Jul 09 15:12:44 2008 +0200
committer John W. Linville <linville@tuxdriver.com> Mon Jul 14 14:52:56 2008 -0400
tree 53818d0fbfacabca3ac5f64bf524f5f71952fa27
parent e360c4cb2bc2fb2a37981809685984efe8433c52

rt2x00: Reorganize beacon handling

With the new beacon handling from mac80211 we can
reorganize the beacon handling in rt2x00 as well.
This patch will move the function to the TX handlers,
and move all duplicate code into rt2x00queue.c.

After this change the descriptor helper functions
from rt2x00queue.c no longer need to be exported
outside of rt2x00lib and can be declared static.

Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rt2x00/rt2500pci.c

diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index a64bb18..50f9e8f 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -1216,6 +1216,40 @@
 /*
  * TX data initialization
  */
+static void rt2500pci_write_beacon(struct queue_entry *entry)
+{
+	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
+	struct queue_entry_priv_pci *entry_priv = entry->priv_data;
+	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
+	u32 word;
+	u32 reg;
+
+	/*
+	 * Disable beaconing while we are reloading the beacon data,
+	 * otherwise we might be sending out invalid data.
+	 */
+	rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
+	rt2x00_set_field32(&reg, CSR14_TSF_COUNT, 0);
+	rt2x00_set_field32(&reg, CSR14_TBCN, 0);
+	rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 0);
+	rt2x00pci_register_write(rt2x00dev, CSR14, reg);
+
+	/*
+	 * Replace rt2x00lib allocated descriptor with the
+	 * pointer to the _real_ hardware descriptor.
+	 * After that, map the beacon to DMA and update the
+	 * descriptor.
+	 */
+	memcpy(entry_priv->desc, skbdesc->desc, skbdesc->desc_len);
+	skbdesc->desc = entry_priv->desc;
+
+	rt2x00queue_map_txskb(rt2x00dev, entry->skb);
+
+	rt2x00_desc_read(entry_priv->desc, 1, &word);
+	rt2x00_set_field32(&word, TXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
+	rt2x00_desc_write(entry_priv->desc, 1, word);
+}
+
 static void rt2500pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
 				    const enum data_queue_qid queue)
 {
@@ -1797,60 +1831,6 @@
 	return tsf;
 }
 
-static int rt2500pci_beacon_update(struct ieee80211_hw *hw, struct sk_buff *skb)
-{
-	struct rt2x00_dev *rt2x00dev = hw->priv;
-	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
-	struct rt2x00_intf *intf = vif_to_intf(tx_info->control.vif);
-	struct queue_entry_priv_pci *entry_priv;
-	struct skb_frame_desc *skbdesc;
-	struct txentry_desc txdesc;
-	u32 reg;
-
-	if (unlikely(!intf->beacon))
-		return -ENOBUFS;
-
-	entry_priv = 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);
-
-	/*
-	 * Fill in skb descriptor
-	 */
-	skbdesc = get_skb_frame_desc(skb);
-	memset(skbdesc, 0, sizeof(*skbdesc));
-	skbdesc->desc = entry_priv->desc;
-	skbdesc->desc_len = intf->beacon->queue->desc_size;
-	skbdesc->entry = intf->beacon;
-
-	/*
-	 * Disable beaconing while we are reloading the beacon data,
-	 * otherwise we might be sending out invalid data.
-	 */
-	rt2x00pci_register_read(rt2x00dev, CSR14, &reg);
-	rt2x00_set_field32(&reg, CSR14_TSF_COUNT, 0);
-	rt2x00_set_field32(&reg, CSR14_TBCN, 0);
-	rt2x00_set_field32(&reg, CSR14_BEACON_GEN, 0);
-	rt2x00pci_register_write(rt2x00dev, CSR14, reg);
-
-	/*
-	 * Enable beacon generation.
-	 * Write entire beacon with descriptor to register,
-	 * and kick the beacon generator.
-	 */
-	rt2x00queue_map_txskb(rt2x00dev, intf->beacon->skb);
-	rt2x00queue_write_tx_descriptor(intf->beacon, &txdesc);
-	rt2x00dev->ops->lib->kick_tx_queue(rt2x00dev, QID_BEACON);
-
-	return 0;
-}
-
 static int rt2500pci_tx_last_beacon(struct ieee80211_hw *hw)
 {
 	struct rt2x00_dev *rt2x00dev = hw->priv;
@@ -1892,9 +1872,9 @@
 	.link_tuner		= rt2500pci_link_tuner,
 	.write_tx_desc		= rt2500pci_write_tx_desc,
 	.write_tx_data		= rt2x00pci_write_tx_data,
+	.write_beacon		= rt2500pci_write_beacon,
 	.kick_tx_queue		= rt2500pci_kick_tx_queue,
 	.fill_rxdone		= rt2500pci_fill_rxdone,
-	.beacon_update		= rt2500pci_beacon_update,
 	.config_filter		= rt2500pci_config_filter,
 	.config_intf		= rt2500pci_config_intf,
 	.config_erp		= rt2500pci_config_erp,