From 2434225ec564a22427005b9a3778dc071254abf3 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 7 May 2009 10:10:06 +0000
Subject: [PATCH] madwifi: improve antenna diversity handling

SVN-Revision: 15658
---
 .../madwifi/patches/420-diversity_fix.patch   | 58 +++++++++++++++++-
 .../patches/421-channel_handling.patch        | 60 +++++++++----------
 2 files changed, 87 insertions(+), 31 deletions(-)

diff --git a/package/madwifi/patches/420-diversity_fix.patch b/package/madwifi/patches/420-diversity_fix.patch
index b7d26d976d..e12de72ded 100644
--- a/package/madwifi/patches/420-diversity_fix.patch
+++ b/package/madwifi/patches/420-diversity_fix.patch
@@ -1,6 +1,32 @@
 --- a/ath/if_ath.c
 +++ b/ath/if_ath.c
-@@ -5344,27 +5344,6 @@ ath_beacon_send(struct ath_softc *sc, in
+@@ -797,7 +797,6 @@ ath_attach(u_int16_t devid, struct net_d
+ 		break;
+ 	}
+ 
+-	sc->sc_setdefantenna = ath_setdefantenna;
+ 	sc->sc_rc = ieee80211_rate_attach(sc, ratectl);
+ 	if (sc->sc_rc == NULL) {
+ 		error = EIO;
+@@ -2623,9 +2622,6 @@ ath_init(struct net_device *dev)
+ 	ath_radar_update(sc);
+ 	ath_rp_flush(sc);
+ 
+-	/* Set the default RX antenna; it may get lost on reset. */
+-	ath_setdefantenna(sc, sc->sc_defant);
+-
+ 	/*
+ 	 * Setup the hardware after reset: the key cache
+ 	 * is filled as needed and the receive engine is
+@@ -3010,7 +3006,6 @@ ath_reset(struct net_device *dev)
+ 	ath_setintmit(sc);
+ 	ath_update_txpow(sc);		/* update tx power state */
+ 	ath_radar_update(sc);
+-	ath_setdefantenna(sc, sc->sc_defant);
+ 	if (ath_startrecv(sc) != 0)	/* restart recv */
+ 		EPRINTF(sc, "Unable to start receive logic.\n");
+ 	if (sc->sc_softled)
+@@ -5344,27 +5339,6 @@ ath_beacon_send(struct ath_softc *sc, in
  	} else if ((sc->sc_updateslot == COMMIT) && (sc->sc_slotupdate == slot))
  		ath_setslottime(sc);		/* commit change to hardware */
  
@@ -28,3 +54,33 @@
  	if (bfaddr != 0) {
  		/*
  		 * Stop any current DMA and put the new frame(s) on the queue.
+@@ -6725,9 +6699,8 @@ ath_setdefantenna(struct ath_softc *sc, 
+ {
+ 	struct ath_hal *ah = sc->sc_ah;
+ 
+-	/* XXX block beacon interrupts */
+-	ath_hal_setdiversity(ah, (sc->sc_diversity != 0));
+ 	ath_hal_setdefantenna(ah, antenna);
++	ath_hal_setantennaswitch(ah, sc->sc_diversity ? 0 : sc->sc_defant);
+ 	if (sc->sc_defant != antenna)
+ 		sc->sc_stats.ast_ant_defswitch++;
+ 	sc->sc_defant = antenna;
+@@ -11138,7 +11111,7 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
+ 					break;
+ 				}
+ 				sc->sc_diversity = val;
+-				ath_hal_setdiversity(ah, val);
++				ath_setdefantenna(sc, sc->sc_defant);
+ 				break;
+ 			case ATH_TXINTRPERIOD:
+ 				/* XXX: validate? */
+--- a/ath/if_athvar.h
++++ b/ath/if_athvar.h
+@@ -640,7 +640,6 @@ struct ath_softc {
+ 	spinlock_t sc_hal_lock;                 /* hardware access lock */
+ 	struct ath_ratectrl *sc_rc;		/* tx rate control support */
+ 	struct ath_tx99 *sc_tx99; 		/* tx99 support */
+-	void (*sc_setdefantenna)(struct ath_softc *, u_int);
+ 	const struct ath_hw_detect *sc_hwinfo;
+ 
+ 	unsigned int 	sc_invalid:1;		/* being detached */
diff --git a/package/madwifi/patches/421-channel_handling.patch b/package/madwifi/patches/421-channel_handling.patch
index a9ad2bd1a6..5418f1b007 100644
--- a/package/madwifi/patches/421-channel_handling.patch
+++ b/package/madwifi/patches/421-channel_handling.patch
@@ -173,7 +173,7 @@
  
  	/* NB: setup here so ath_rate_update is happy */
  	ath_setcurmode(sc, IEEE80211_MODE_11A);
-@@ -909,10 +929,6 @@ ath_attach(u_int16_t devid, struct net_d
+@@ -908,10 +928,6 @@ ath_attach(u_int16_t devid, struct net_d
  			IEEE80211_ATHC_COMP : 0);
  #endif
  
@@ -184,7 +184,7 @@
  #ifdef ATH_SUPERG_XR
  	ic->ic_ath_cap |= (ath_hal_xrsupported(ah) ? IEEE80211_ATHC_XR : 0);
  #endif
-@@ -4466,17 +4482,17 @@ ath_mode_init(struct net_device *dev)
+@@ -4461,17 +4477,17 @@ ath_mode_init(struct net_device *dev)
   * Set the slot time based on the current setting.
   */
  static void
@@ -210,7 +210,7 @@
  	sc->sc_updateslot = OK;
  }
  
-@@ -4498,7 +4514,7 @@ ath_updateslot(struct net_device *dev)
+@@ -4493,7 +4509,7 @@ ath_updateslot(struct net_device *dev)
  	if (ic->ic_opmode == IEEE80211_M_HOSTAP)
  		sc->sc_updateslot = UPDATE;
  	else if (dev->flags & IFF_RUNNING)
@@ -219,7 +219,7 @@
  }
  
  #ifdef ATH_SUPERG_DYNTURBO
-@@ -5342,7 +5358,7 @@ ath_beacon_send(struct ath_softc *sc, in
+@@ -5337,7 +5353,7 @@ ath_beacon_send(struct ath_softc *sc, in
  		sc->sc_updateslot = COMMIT;	/* commit next beacon */
  		sc->sc_slotupdate = slot;
  	} else if ((sc->sc_updateslot == COMMIT) && (sc->sc_slotupdate == slot))
@@ -228,7 +228,7 @@
  
  	if (bfaddr != 0) {
  		/*
-@@ -7796,12 +7812,14 @@ ath_get_ivlen(struct ieee80211_key *k)
+@@ -7790,12 +7806,14 @@ ath_get_ivlen(struct ieee80211_key *k)
   * Get transmit rate index using rate in Kbps
   */
  static __inline int
@@ -245,7 +245,7 @@
  			ndx = i;
  			break;
  		}
-@@ -8094,7 +8112,7 @@ ath_tx_start(struct net_device *dev, str
+@@ -8088,7 +8106,7 @@ ath_tx_start(struct net_device *dev, str
  		atype = HAL_PKT_TYPE_NORMAL;		/* default */
  
  		if (ismcast) {
@@ -254,7 +254,7 @@
  			txrate = rt->info[rix].rateCode;
  			if (shortPreamble)
  				txrate |= rt->info[rix].shortPreamble;
-@@ -9061,7 +9079,7 @@ ath_chan_change(struct ath_softc *sc, st
+@@ -9055,7 +9073,7 @@ ath_chan_change(struct ath_softc *sc, st
  	struct net_device *dev = sc->sc_dev;
  	enum ieee80211_phymode mode;
  
@@ -263,7 +263,7 @@
  
  	ath_rate_setup(dev, mode);
  	ath_setcurmode(sc, mode);
-@@ -10110,8 +10128,7 @@ ath_newassoc(struct ieee80211_node *ni, 
+@@ -10104,8 +10122,7 @@ ath_newassoc(struct ieee80211_node *ni, 
  }
  
  static int
@@ -273,7 +273,7 @@
  {
  	struct ath_softc *sc = dev->priv;
  	struct ieee80211com *ic = &sc->sc_ic;
-@@ -10125,17 +10142,31 @@ ath_getchannels(struct net_device *dev, 
+@@ -10119,17 +10136,31 @@ ath_getchannels(struct net_device *dev, 
  		EPRINTF(sc, "Insufficient memory for channel table!\n");
  		return -ENOMEM;
  	}
@@ -307,7 +307,7 @@
  	/*
  	 * Convert HAL channels to ieee80211 ones.
  	 */
-@@ -10379,7 +10410,7 @@ ath_xr_rate_setup(struct net_device *dev
+@@ -10373,7 +10404,7 @@ ath_xr_rate_setup(struct net_device *dev
  	struct ieee80211com *ic = &sc->sc_ic;
  	const HAL_RATE_TABLE *rt;
  	struct ieee80211_rateset *rs;
@@ -316,7 +316,7 @@
  	sc->sc_xr_rates = ath_hal_getratetable(ah, HAL_MODE_XR);
  	rt = sc->sc_xr_rates;
  	if (rt == NULL)
-@@ -10392,57 +10423,16 @@ ath_xr_rate_setup(struct net_device *dev
+@@ -10386,57 +10417,16 @@ ath_xr_rate_setup(struct net_device *dev
  	} else
  		maxrates = rt->rateCount;
  	rs = &ic->ic_sup_xr_rates;
@@ -380,7 +380,7 @@
  static int
  ath_rate_setup(struct net_device *dev, u_int mode)
  {
-@@ -10451,7 +10441,7 @@ ath_rate_setup(struct net_device *dev, u
+@@ -10445,7 +10435,7 @@ ath_rate_setup(struct net_device *dev, u
  	struct ieee80211com *ic = &sc->sc_ic;
  	const HAL_RATE_TABLE *rt;
  	struct ieee80211_rateset *rs;
@@ -389,7 +389,7 @@
  
  	switch (mode) {
  	case IEEE80211_MODE_11A:
-@@ -10469,6 +10459,12 @@ ath_rate_setup(struct net_device *dev, u
+@@ -10463,6 +10453,12 @@ ath_rate_setup(struct net_device *dev, u
  	case IEEE80211_MODE_TURBO_G:
  		sc->sc_rates[mode] = ath_hal_getratetable(ah, HAL_MODE_108G);
  		break;
@@ -402,7 +402,7 @@
  	default:
  		DPRINTF(sc, ATH_DEBUG_ANY, "Invalid mode %u\n", mode);
  		return 0;
-@@ -10483,10 +10479,16 @@ ath_rate_setup(struct net_device *dev, u
+@@ -10477,10 +10473,16 @@ ath_rate_setup(struct net_device *dev, u
  		maxrates = IEEE80211_RATE_MAXSIZE;
  	} else
  		maxrates = rt->rateCount;
@@ -419,7 +419,7 @@
  	return 1;
  }
  
-@@ -10515,13 +10517,18 @@ ath_setcurmode(struct ath_softc *sc, enu
+@@ -10509,13 +10511,18 @@ ath_setcurmode(struct ath_softc *sc, enu
  		{   0, 500, 130 },
  	};
  	const HAL_RATE_TABLE *rt;
@@ -440,7 +440,7 @@
  	memset(sc->sc_hwmap, 0, sizeof(sc->sc_hwmap));
  	for (i = 0; i < 32; i++) {
  		u_int8_t ix = rt->rateCodeToIndex[i];
-@@ -10531,7 +10538,7 @@ ath_setcurmode(struct ath_softc *sc, enu
+@@ -10525,7 +10532,7 @@ ath_setcurmode(struct ath_softc *sc, enu
  			continue;
  		}
  		sc->sc_hwmap[i].ieeerate =
@@ -449,7 +449,7 @@
  		if (rt->info[ix].shortPreamble ||
  		    rt->info[ix].phy == IEEE80211_T_OFDM)
  			sc->sc_hwmap[i].flags |= IEEE80211_RADIOTAP_F_SHORTPRE;
-@@ -10932,9 +10939,106 @@ enum {
+@@ -10926,9 +10933,106 @@ enum {
  	ATH_MAXVAPS  		= 26,
  	ATH_INTMIT			= 27,
  	ATH_NOISE_IMMUNITY	= 28,
@@ -557,7 +557,7 @@
  static int
  ath_sysctl_set_intmit(struct ath_softc *sc, long ctl, u_int val)
  {
-@@ -11013,6 +11117,7 @@ static int
+@@ -11007,6 +11111,7 @@ static int
  ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl, write, filp, buffer, lenp, ppos)
  {
  	struct ath_softc *sc = ctl->extra1;
@@ -565,7 +565,7 @@
  	struct ath_hal *ah = sc->sc_ah;
  	u_int val;
  	u_int tab_3_val[3];
-@@ -11036,25 +11141,33 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
+@@ -11030,25 +11135,33 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
  				lenp, ppos);
  		if (ret == 0) {
  			switch ((long)ctl->extra2) {
@@ -612,7 +612,7 @@
  				break;
  			case ATH_SOFTLED:
  				if (val != sc->sc_softled) {
-@@ -11207,6 +11320,9 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
+@@ -11201,6 +11314,9 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
  		}
  	} else {
  		switch ((long)ctl->extra2) {
@@ -622,7 +622,7 @@
  		case ATH_SLOTTIME:
  			val = ath_hal_getslottime(ah);
  			break;
-@@ -11225,6 +11341,9 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
+@@ -11219,6 +11335,9 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
  		case ATH_COUNTRYCODE:
  			ath_hal_getcountrycode(ah, &val);
  			break;
@@ -632,7 +632,7 @@
  		case ATH_MAXVAPS:
  			val = ath_maxvaps;
  			break;
-@@ -11338,11 +11457,17 @@ static const ctl_table ath_sysctl_templa
+@@ -11332,11 +11451,17 @@ static const ctl_table ath_sysctl_templa
  	},
  	{ .ctl_name	= CTL_AUTO,
  	  .procname	= "countrycode",
@@ -651,7 +651,7 @@
  	  .procname	= "maxvaps",
  	  .mode		= 0444,
  	  .proc_handler	= ath_sysctl_halparam,
-@@ -11350,7 +11475,7 @@ static const ctl_table ath_sysctl_templa
+@@ -11344,7 +11469,7 @@ static const ctl_table ath_sysctl_templa
  	},
  	{ .ctl_name	= CTL_AUTO,
  	  .procname	= "regdomain",
@@ -660,7 +660,7 @@
  	  .proc_handler	= ath_sysctl_halparam,
  	  .extra2	= (void *)ATH_REGDOMAIN,
  	},
-@@ -11413,6 +11538,12 @@ static const ctl_table ath_sysctl_templa
+@@ -11407,6 +11532,12 @@ static const ctl_table ath_sysctl_templa
  	  .extra2	= (void *)ATH_ACKRATE,
  	},
  	{ .ctl_name	= CTL_AUTO,
@@ -673,7 +673,7 @@
  	  .procname     = "rp",
  	  .mode         = 0200,
  	  .proc_handler = ath_sysctl_halparam,
-@@ -11653,13 +11784,6 @@ static ctl_table ath_static_sysctls[] = 
+@@ -11647,13 +11778,6 @@ static ctl_table ath_static_sysctls[] = 
  	},
  #endif
  	{ .ctl_name	= CTL_AUTO,
@@ -687,7 +687,7 @@
  	  .procname	= "maxvaps",
  	  .mode		= 0444,
  	  .data		= &ath_maxvaps,
-@@ -11667,13 +11791,6 @@ static ctl_table ath_static_sysctls[] = 
+@@ -11661,13 +11785,6 @@ static ctl_table ath_static_sysctls[] = 
  	  .proc_handler	= proc_dointvec
  	},
  	{ .ctl_name	= CTL_AUTO,
@@ -703,7 +703,7 @@
  	  .data		= &ath_xchanmode,
 --- a/ath/if_athvar.h
 +++ b/ath/if_athvar.h
-@@ -689,16 +689,17 @@ struct ath_softc {
+@@ -688,16 +688,17 @@ struct ath_softc {
  	int8_t sc_ofdm_weak_det; /* OFDM weak frames detection, -1 == auto */
  
  	/* rate tables */
@@ -724,7 +724,7 @@
  	u_int8_t sc_curbssid[IEEE80211_ADDR_LEN];
  	u_int8_t	sc_rixmap[256];			/* IEEE to h/w rate table ix */
  	struct {
-@@ -809,6 +810,8 @@ struct ath_softc {
+@@ -808,6 +809,8 @@ struct ath_softc {
  	u_int32_t sc_dturbo_bw_turbo;		/* bandwidth threshold */
  #endif
  	u_int sc_slottimeconf;			/* manual override for slottime */
@@ -733,7 +733,7 @@
  
  	struct timer_list sc_dfs_excl_timer;	/* mark expiration timer task */
  	struct timer_list sc_dfs_cac_timer;	/* dfs wait timer */
-@@ -827,6 +830,7 @@ struct ath_softc {
+@@ -826,6 +829,7 @@ struct ath_softc {
  	int sc_rp_num;
  	int sc_rp_min;
  	HAL_BOOL (*sc_rp_analyse)(struct ath_softc *sc);
@@ -741,7 +741,7 @@
  	struct ATH_TQ_STRUCT sc_rp_tq;
  	
  	int sc_rp_ignored;			/* if set, we ignored all 
-@@ -942,6 +946,48 @@ int ar_device(int devid);
+@@ -941,6 +945,48 @@ int ar_device(int devid);
  	  DEV_NAME(_v->iv_ic->ic_dev))
  
  void ath_radar_detected(struct ath_softc *sc, const char* message);
-- 
2.30.2