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>

1 files changed, 35 insertions, 54 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index 89b874ca6107..027580bfa7c3 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1058,6 +1058,40 @@ static void rt2400pci_write_tx_desc(struct rt2x00_dev *rt2x00dev,
 /*
  * TX data initialization
  */
+static void rt2400pci_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 rt2400pci_kick_tx_queue(struct rt2x00_dev *rt2x00dev,
                                     const enum data_queue_qid queue)
 {
@@ -1504,59 +1538,6 @@ static u64 rt2400pci_get_tsf(struct ieee80211_hw *hw)
         return tsf;
 }
 
-static int rt2400pci_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 rt2400pci_tx_last_beacon(struct ieee80211_hw *hw)
 {
         struct rt2x00_dev *rt2x00dev = hw->priv;
@@ -1598,9 +1579,9 @@ static const struct rt2x00lib_ops rt2400pci_rt2x00_ops = {
         .link_tuner             = rt2400pci_link_tuner,
         .write_tx_desc          = rt2400pci_write_tx_desc,
         .write_tx_data          = rt2x00pci_write_tx_data,
+        .write_beacon           = rt2400pci_write_beacon,
         .kick_tx_queue          = rt2400pci_kick_tx_queue,
         .fill_rxdone            = rt2400pci_fill_rxdone,
-        .beacon_update          = rt2400pci_beacon_update,
         .config_filter          = rt2400pci_config_filter,
         .config_intf            = rt2400pci_config_intf,
         .config_erp             = rt2400pci_config_erp,