rt2x00: Cleanup TX/RX entry handling

Merge the callback functions init_txentry() and
init_rxentry(). This makes life in rt2x00lib a
lot simpler and we can cleanup several functions.

rt2x00pci contained "fake" FIELD definitions for
descriptor words. This is not flexible since it
assumes the driver will always have the same field
to indicate if a driver is available or not.
This should be dependent on the driver, and we
should add a callback function for this.

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

1 files changed, 28 insertions, 17 deletions

diff --git a/drivers/net/wireless/rt2x00/rt2500pci.c b/drivers/net/wireless/rt2x00/rt2500pci.c
index 928452f..e43ff9c 100644
--- a/drivers/net/wireless/rt2x00/rt2500pci.c
+++ b/drivers/net/wireless/rt2x00/rt2500pci.c
@@ -722,32 +722,43 @@ dynamic_cca_tune:
 /*
  * Initialization functions.
  */
-static void rt2500pci_init_rxentry(struct rt2x00_dev *rt2x00dev,
-				   struct queue_entry *entry)
+static bool rt2500pci_get_entry_state(struct queue_entry *entry)
 {
 	struct queue_entry_priv_pci *entry_priv = entry->priv_data;
-	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
 	u32 word;
 
-	rt2x00_desc_read(entry_priv->desc, 1, &word);
-	rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
-	rt2x00_desc_write(entry_priv->desc, 1, word);
+	if (entry->queue->qid == QID_RX) {
+		rt2x00_desc_read(entry_priv->desc, 0, &word);
+
+		return rt2x00_get_field32(word, RXD_W0_OWNER_NIC);
+	} else {
+		rt2x00_desc_read(entry_priv->desc, 0, &word);
 
-	rt2x00_desc_read(entry_priv->desc, 0, &word);
-	rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
-	rt2x00_desc_write(entry_priv->desc, 0, word);
+		return (rt2x00_get_field32(word, TXD_W0_OWNER_NIC) ||
+		        rt2x00_get_field32(word, TXD_W0_VALID));
+	}
 }
 
-static void rt2500pci_init_txentry(struct rt2x00_dev *rt2x00dev,
-				   struct queue_entry *entry)
+static void rt2500pci_clear_entry(struct queue_entry *entry)
 {
 	struct queue_entry_priv_pci *entry_priv = entry->priv_data;
+	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
 	u32 word;
 
-	rt2x00_desc_read(entry_priv->desc, 0, &word);
-	rt2x00_set_field32(&word, TXD_W0_VALID, 0);
-	rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
-	rt2x00_desc_write(entry_priv->desc, 0, word);
+	if (entry->queue->qid == QID_RX) {
+		rt2x00_desc_read(entry_priv->desc, 1, &word);
+		rt2x00_set_field32(&word, RXD_W1_BUFFER_ADDRESS, skbdesc->skb_dma);
+		rt2x00_desc_write(entry_priv->desc, 1, word);
+
+		rt2x00_desc_read(entry_priv->desc, 0, &word);
+		rt2x00_set_field32(&word, RXD_W0_OWNER_NIC, 1);
+		rt2x00_desc_write(entry_priv->desc, 0, word);
+	} else {
+		rt2x00_desc_read(entry_priv->desc, 0, &word);
+		rt2x00_set_field32(&word, TXD_W0_VALID, 0);
+		rt2x00_set_field32(&word, TXD_W0_OWNER_NIC, 0);
+		rt2x00_desc_write(entry_priv->desc, 0, word);
+	}
 }
 
 static int rt2500pci_init_queues(struct rt2x00_dev *rt2x00dev)
@@ -1871,8 +1882,8 @@ static const struct rt2x00lib_ops rt2500pci_rt2x00_ops = {
 	.probe_hw		= rt2500pci_probe_hw,
 	.initialize		= rt2x00pci_initialize,
 	.uninitialize		= rt2x00pci_uninitialize,
-	.init_rxentry		= rt2500pci_init_rxentry,
-	.init_txentry		= rt2500pci_init_txentry,
+	.get_entry_state	= rt2500pci_get_entry_state,
+	.clear_entry		= rt2500pci_clear_entry,
 	.set_device_state	= rt2500pci_set_device_state,
 	.rfkill_poll		= rt2500pci_rfkill_poll,
 	.link_stats		= rt2500pci_link_stats,