wl1271: Add TX rate reporting

Add reporting of the used TX rate to mac80211 in the tx_status.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

3 files changed, 17 insertions, 12 deletions

diff --git a/drivers/net/wireless/wl12xx/wl1271_main.c b/drivers/net/wireless/wl12xx/wl1271_main.c
index 49779e588e30..864503048257 100644
--- a/drivers/net/wireless/wl12xx/wl1271_main.c
+++ b/drivers/net/wireless/wl12xx/wl1271_main.c
@@ -2127,6 +2127,7 @@ int wl1271_init_ieee80211(struct wl1271 *wl)
                 wl->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wl1271_band_5ghz;
 
         wl->hw->queues = 4;
+        wl->hw->max_rates = 1;
 
         SET_IEEE80211_DEV(wl->hw, wl1271_wl_to_dev(wl));
 
diff --git a/drivers/net/wireless/wl12xx/wl1271_tx.c b/drivers/net/wireless/wl12xx/wl1271_tx.c
index 6d109df9a0a0..5712489f5ddb 100644
--- a/drivers/net/wireless/wl12xx/wl1271_tx.c
+++ b/drivers/net/wireless/wl12xx/wl1271_tx.c
@@ -304,6 +304,8 @@ static void wl1271_tx_complete_packet(struct wl1271 *wl,
         struct ieee80211_tx_info *info;
         struct sk_buff *skb;
         int id = result->id;
+        int rate = -1;
+        u8 retries = 0;
 
         /* check for id legality */
         if (unlikely(id >= ACX_TX_DESCRIPTORS || wl->tx_frames[id] == NULL)) {
@@ -314,19 +316,22 @@ static void wl1271_tx_complete_packet(struct wl1271 *wl,
         skb = wl->tx_frames[id];
         info = IEEE80211_SKB_CB(skb);
 
-        /* update packet status */
-        if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
-                if (result->status == TX_SUCCESS)
+        /* update the TX status info */
+        if (result->status == TX_SUCCESS) {
+                if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
                         info->flags |= IEEE80211_TX_STAT_ACK;
-                if (result->status & TX_RETRY_EXCEEDED) {
-                        /* FIXME */
-                        /* info->status.excessive_retries = 1; */
-                        wl->stats.excessive_retries++;
-                }
+                rate = wl1271_rate_to_idx(wl, result->rate_class_index);
+                retries = result->ack_failures;
+        } else if (result->status == TX_RETRY_EXCEEDED) {
+                wl->stats.excessive_retries++;
+                retries = result->ack_failures;
         }
 
-        /* FIXME */
-        /* info->status.retry_count = result->ack_failures; */
+        info->status.rates[0].idx = rate;
+        info->status.rates[0].count = retries;
+        info->status.rates[0].flags = 0;
+        info->status.ack_signal = -1;
+
         wl->stats.retry_count += result->ack_failures;
 
         /* update security sequence number */
@@ -350,8 +355,6 @@ static void wl1271_tx_complete_packet(struct wl1271 *wl,
                      result->id, skb, result->ack_failures,
                      result->rate_class_index, result->status);
 
-        /* FIXME: do we need to tell the stack about the used rate? */
-
         /* return the packet to the stack */
         ieee80211_tx_status(wl->hw, skb);
         wl->tx_frames[result->id] = NULL;
diff --git a/drivers/net/wireless/wl12xx/wl1271_tx.h b/drivers/net/wireless/wl12xx/wl1271_tx.h
index 5e6c27a57415..b03c95d9673f 100644
--- a/drivers/net/wireless/wl12xx/wl1271_tx.h
+++ b/drivers/net/wireless/wl12xx/wl1271_tx.h
@@ -159,5 +159,6 @@ static inline int wl1271_tx_ac_to_tid(int ac)
 void wl1271_tx_work(struct work_struct *work);
 void wl1271_tx_complete(struct wl1271 *wl);
 void wl1271_tx_flush(struct wl1271 *wl);
+u8 wl1271_rate_to_idx(struct wl1271 *wl, int rate);
 
 #endif