wl1251: set rate index and preamble flag on received packets

Set the rate index rate_idx and preamble flag RX_FLAG_SHORTPRE on received
packets.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Acked-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 45 insertions, 1 deletions

diff --git a/drivers/net/wireless/wl1251/rx.c b/drivers/net/wireless/wl1251/rx.c
index 86eef456d7b2..b659e15c78df 100644
--- a/drivers/net/wireless/wl1251/rx.c
+++ b/drivers/net/wireless/wl1251/rx.c
@@ -96,8 +96,52 @@ static void wl1251_rx_status(struct wl1251 *wl,
         if (unlikely(!(desc->flags & RX_DESC_VALID_FCS)))
                 status->flag |= RX_FLAG_FAILED_FCS_CRC;
 
+        switch (desc->rate) {
+                /* skip 1 and 12 Mbps because they have same value 0x0a */
+        case RATE_2MBPS:
+                status->rate_idx = 1;
+                break;
+        case RATE_5_5MBPS:
+                status->rate_idx = 2;
+                break;
+        case RATE_11MBPS:
+                status->rate_idx = 3;
+                break;
+        case RATE_6MBPS:
+                status->rate_idx = 4;
+                break;
+        case RATE_9MBPS:
+                status->rate_idx = 5;
+                break;
+        case RATE_18MBPS:
+                status->rate_idx = 7;
+                break;
+        case RATE_24MBPS:
+                status->rate_idx = 8;
+                break;
+        case RATE_36MBPS:
+                status->rate_idx = 9;
+                break;
+        case RATE_48MBPS:
+                status->rate_idx = 10;
+                break;
+        case RATE_54MBPS:
+                status->rate_idx = 11;
+                break;
+        }
+
+        /* for 1 and 12 Mbps we have to check the modulation */
+        if (desc->rate == RATE_1MBPS) {
+                if (!(desc->mod_pre & OFDM_RATE_BIT))
+                        /* CCK -> RATE_1MBPS */
+                        status->rate_idx = 0;
+                else
+                        /* OFDM -> RATE_12MBPS */
+                        status->rate_idx = 6;
+        }
 
-        /* FIXME: set status->rate_idx */
+        if (desc->mod_pre & SHORT_PREAMBLE_BIT)
+                status->flag |= RX_FLAG_SHORTPRE;
 }
 
 static void wl1251_rx_body(struct wl1251 *wl,