rt2x00: Split rt2x00lib_write_tx_desc()

[linux-2.6] / drivers / net / wireless / rt2x00 / rt2x00.h

diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 79bd9c9f896312185b52db85be7a85d8ec22fcf8..9c186d79c11c082bdf55d930bf5e27bbd2ec944a 100644 (file)
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -540,8 +540,7 @@ struct rt2x00lib_ops {
         */
        void (*write_tx_desc) (struct rt2x00_dev *rt2x00dev,
                               struct sk_buff *skb,
-                              struct txentry_desc *txdesc,
-                              struct ieee80211_tx_control *control);
+                              struct txentry_desc *txdesc);
        int (*write_tx_data) (struct rt2x00_dev *rt2x00dev,
                              struct data_queue *queue, struct sk_buff *skb,
                              struct ieee80211_tx_control *control);
@@ -592,6 +591,7 @@ struct rt2x00_ops {
        const unsigned int max_ap_intf;
        const unsigned int eeprom_size;
        const unsigned int rf_size;
+       const unsigned int tx_queues;
        const struct data_queue_desc *rx;
        const struct data_queue_desc *tx;
        const struct data_queue_desc *bcn;
@@ -926,6 +926,41 @@ static inline u16 get_duration_res(const unsigned int size, const u8 rate)
        return ((size * 8 * 10) % rate);
 }
 
+/**
+ * rt2x00queue_create_tx_descriptor - Create TX descriptor from mac80211 input
+ * @entry: The entry which will be used to transfer the TX frame.
+ * @txdesc: rt2x00 TX descriptor which will be initialized by this function.
+ * @control: mac80211 TX control structure from where we read the information.
+ *
+ * This function will initialize the &struct txentry_desc based on information
+ * from mac80211. This descriptor can then be used by rt2x00lib and the drivers
+ * to correctly initialize the hardware descriptor.
+ * Note that before calling this function the skb->cb array must be untouched
+ * by rt2x00lib. Only after this function completes will it be save to
+ * overwrite the skb->cb information.
+ * The reason for this is that mac80211 writes its own tx information into
+ * the skb->cb array, and this function will use that information to initialize
+ * the &struct txentry_desc structure.
+ */
+void rt2x00queue_create_tx_descriptor(struct queue_entry *entry,
+                                     struct txentry_desc *txdesc,
+                                     struct ieee80211_tx_control *control);
+
+/**
+ * rt2x00queue_write_tx_descriptor - Write TX descriptor to hardware
+ * @entry: The entry which will be used to transfer the TX frame.
+ * @txdesc: TX descriptor which will be used to write hardware descriptor
+ *
+ * This function will write a TX descriptor initialized by
+ * &rt2x00queue_create_tx_descriptor to the hardware. After this call
+ * has completed the frame is now owned by the hardware, the hardware
+ * queue will have automatically be kicked unless this frame was generated
+ * by rt2x00lib, in which case the frame is "special" and must be kicked
+ * by the caller.
+ */
+void rt2x00queue_write_tx_descriptor(struct queue_entry *entry,
+                                    struct txentry_desc *txdesc);
+
 /**
  * rt2x00queue_get_queue - Convert queue index to queue pointer
  * @rt2x00dev: Pointer to &struct rt2x00_dev.
@@ -963,13 +998,6 @@ void rt2x00lib_txdone(struct queue_entry *entry,
 void rt2x00lib_rxdone(struct queue_entry *entry,
                      struct rxdone_entry_desc *rxdesc);
 
-/*
- * TX descriptor initializer
- */
-void rt2x00lib_write_tx_desc(struct rt2x00_dev *rt2x00dev,
-                            struct sk_buff *skb,
-                            struct ieee80211_tx_control *control);
-
 /*
  * mac80211 handlers.
  */