[PATCH] Prism54 : add bitrates to scan result

This patch adds bitrate information to the scan result in the Prism54
driver, like some/most other driver do.

Signed-off-by: Jean Tourrilhes <jt@hpl.hp.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/net/wireless/prism54/isl_ioctl.c b/drivers/net/wireless/prism54/isl_ioctl.c
index 0c30fe7e8f7..c09fbf733b3 100644
--- a/drivers/net/wireless/prism54/isl_ioctl.c
+++ b/drivers/net/wireless/prism54/isl_ioctl.c
@@ -46,6 +46,10 @@ static size_t prism54_wpa_bss_ie_get(islpci_private *priv, u8 *bssid, u8 *wpa_ie
 static int prism54_set_wpa(struct net_device *, struct iw_request_info *,
                                 __u32 *, char *);
 
+/* In 500 kbps */
+static const unsigned char scan_rate_list[] = { 2, 4, 11, 22,
+                                                12, 18, 24, 36,
+                                                48, 72, 96, 108 };
 
 /**
  * prism54_mib_mode_helper - MIB change mode helper function
@@ -644,6 +648,32 @@ prism54_translate_bss(struct net_device *ndev, char *current_ev,
                 current_ev = iwe_stream_add_point(current_ev, end_buf,
                                 &iwe, wpa_ie);
         }
+        /* Do the bitrates */
+        {
+                char *  current_val = current_ev + IW_EV_LCP_LEN;
+                int i;
+                int mask;
+
+                iwe.cmd = SIOCGIWRATE;
+                /* Those two flags are ignored... */
+                iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
+
+                /* Parse the bitmask */
+                mask = 0x1;
+                for(i = 0; i < sizeof(scan_rate_list); i++) {
+                        if(bss->rates & mask) {
+                                iwe.u.bitrate.value = (scan_rate_list[i] * 500000);
+                                current_val = iwe_stream_add_value(current_ev, current_val,
+                                                                   end_buf, &iwe,
+                                                                   IW_EV_PARAM_LEN);
+                        }
+                        mask <<= 1;
+                }
+                /* Check if we added any event */
+                if ((current_val - current_ev) > IW_EV_LCP_LEN)
+                        current_ev = current_val;
+        }
+
         return current_ev;
 }