[kismac] [binaervarianz] r137 - trunk/Subprojects/AtheroJack/OpenHAL

Author: mick
Date: 2006-04-22 10:54:37 +0200 (Sat, 22 Apr 2006)
New Revision: 137

Added:
   trunk/Subprojects/AtheroJack/OpenHAL/ieeeLite.cpp
Log:
* added missing file from last commit (thanks geoff)



Added: trunk/Subprojects/AtheroJack/OpenHAL/ieeeLite.cpp
===================================================================
--- trunk/Subprojects/AtheroJack/OpenHAL/ieeeLite.cpp   2006-04-21 14:08:05 UTC 
(rev 136)
+++ trunk/Subprojects/AtheroJack/OpenHAL/ieeeLite.cpp   2006-04-22 08:54:37 UTC 
(rev 137)
@@ -0,0 +1,99 @@
+/*
+ *  ieeeLite.c
+ *  AtheroJack
+ *
+ *  Created by Beat Zahnd on 4/9/06.
+ *  Copyright 2006 Beat Zahnd. All rights reserved.
+ *
+ */
+
+#include "ieeeLite.h"
+#include "OpenHAL.h"
+
+static const struct ieee80211_regdomainmap ieee80211_r_map[] = 
IEEE80211_REGDOMAIN_MAP;
+
+
+#pragma mark -
+#pragma mark OpenBSD sys/net80211/ieee80211_regdomain.c
+
+/*
+ * Code ported from OpenBSD sys/net80211/ieee80211_regdomain.c r1.6
+ */
+
+u_int32_t
+OpenHAL::ieee80211_regdomain2flag(u_int16_t regdomain, u_int16_t mhz)
+{
+       int i;
+       
+       for(i = 0; i < (sizeof(ieee80211_r_map) / 
+               sizeof(ieee80211_r_map[0])); i++) {
+               if(ieee80211_r_map[i].rm_domain == regdomain) {
+                       if(mhz >= 2000 && mhz <= 3000)
+                               
return((u_int32_t)ieee80211_r_map[i].rm_domain_2ghz);
+                       if(mhz >= IEEE80211_CHANNELS_5GHZ_MIN && 
+                           mhz <= IEEE80211_CHANNELS_5GHZ_MAX)
+                               
return((u_int32_t)ieee80211_r_map[i].rm_domain_5ghz);
+               }
+       }
+
+       return((u_int32_t)DMN_DEBUG);
+}
+
+#pragma mark -
+#pragma mark OpenBSD src/sys/net80211/ieee80211.c
+
+/*
+ * Code ported from OpenBSD src/sys/net80211/ieee80211.c r1.16
+ */
+
+/*
+ * Convert MHz frequency to IEEE channel number.
+ */
+u_int
+OpenHAL::ieee80211_mhz2ieee(u_int freq, u_int flags)
+{
+       if (flags & IEEE80211_CHAN_2GHZ) {      /* 2GHz band */
+               if (freq == 2484)
+                       return 14;
+               if (freq < 2484)
+                       return (freq - 2407) / 5;
+               else
+                       return 15 + ((freq - 2512) / 20);
+       } else if (flags & IEEE80211_CHAN_5GHZ) {       /* 5Ghz band */
+               return (freq - 5000) / 5;
+       } else {                                /* either, guess */
+               if (freq == 2484)
+                       return 14;
+               if (freq < 2484)
+                       return (freq - 2407) / 5;
+               if (freq < 5000)
+                       return 15 + ((freq - 2512) / 20);
+               return (freq - 5000) / 5;
+       }
+}
+
+/*
+ * Convert IEEE channel number to MHz frequency.
+ */
+u_int
+OpenHAL::ieee80211_ieee2mhz(u_int chan, u_int flags)
+{
+       if (flags & IEEE80211_CHAN_2GHZ) {      /* 2GHz band */
+               if (chan == 14)
+                       return 2484;
+               if (chan < 14)
+                       return 2407 + chan*5;
+               else
+                       return 2512 + ((chan-15)*20);
+       } else if (flags & IEEE80211_CHAN_5GHZ) {/* 5Ghz band */
+               return 5000 + (chan*5);
+       } else {                                /* either, guess */
+               if (chan == 14)
+                       return 2484;
+               if (chan < 14)                  /* 0-13 */
+                       return 2407 + chan*5;
+               if (chan < 27)                  /* 15-26 */
+                       return 2512 + ((chan-15)*20);
+               return 5000 + (chan*5);
+       }
+}

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