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madwifi: clean up handling of various timings such as slot time, ack timeout, eifs time, etc. 

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@15713 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Felix Fietkau 2009-05-08 19:25:31 +00:00
parent 07b7495fbb
commit f3068cb1e3
3 changed files with 732 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
package/madwifi/Makefile
View File

@ -151,7 +151,7 @@ ifeq ($(findstring PCI,$(BUS)),PCI)
MADWIFI_AUTOLOAD+= ath_pci
endif
MADWIFI_APPLETS:=80211stats athchans athctrl athkey athstats wlanconfig ath_info
MADWIFI_APPLETS:=80211stats athchans athkey athstats wlanconfig ath_info
ifdef CONFIG_MADWIFI_DEBUG
MADWIFI_APPLETS += athdebug 80211debug
endif

4
package/madwifi/files/lib/wifi/madwifi.sh
View File

@ -219,9 +219,7 @@ enable_atheros() {
[ -n "$antrx" ] && sysctl -w dev."$device".rxantenna="$antrx" >&-
[ -n "$anttx" ] && sysctl -w dev."$device".txantenna="$anttx" >&-
[ -n "$softled" ] && sysctl -w dev."$device".softled="$softled" >&-
config_get distance "$device" distance
[ -n "$distance" ] && athctrl -i "$device" -d "$distance" >&-
[ -n "$distance" ] && sysctl -w dev."$device".distance="$distance" >&-
config_get rate "$vif" rate
[ -n "$rate" ] && iwconfig "$ifname" rate "${rate%%.*}"

730
package/madwifi/patches/424-timing.patch Normal file
View File

@ -0,0 +1,730 @@
--- a/ath/if_ath.c
+++ b/ath/if_ath.c
@@ -382,6 +382,7 @@ static u_int32_t ath_set_clamped_maxtxpo
static void ath_poll_disable(struct net_device *dev);
static void ath_poll_enable(struct net_device *dev);
static void ath_fetch_idle_time(struct ath_softc *sc);
+static void ath_set_timing(struct ath_softc *sc);
/* calibrate every 30 secs in steady state but check every second at first. */
static int ath_calinterval = ATH_SHORT_CALINTERVAL;
@@ -1185,6 +1186,7 @@ ath_attach(u_int16_t devid, struct net_d
sc->sc_intmit = -1;
sc->sc_noise_immunity = -1;
sc->sc_ofdm_weak_det = -1;
+ sc->sc_coverage = 7; /* 2100 meters */
return 0;
bad3:
@@ -2672,6 +2674,7 @@ ath_init(struct net_device *dev)
*/
ath_chan_change(sc, ic->ic_curchan);
ath_set_ack_bitrate(sc, sc->sc_ackrate);
+ ath_set_timing(sc);
dev->flags |= IFF_RUNNING; /* we are ready to go */
ieee80211_start_running(ic); /* start all VAPs */
#ifdef ATH_TX99_DIAG
@@ -4483,17 +4486,52 @@ ath_mode_init(struct net_device *dev)
* Set the slot time based on the current setting.
*/
static void
-ath_settiming(struct ath_softc *sc)
+ath_set_timing(struct ath_softc *sc)
{
+ struct ieee80211com *ic = &sc->sc_ic;
struct ath_hal *ah = sc->sc_ah;
- u_int offset = getTimingOffset(sc);
+ struct ath_timings *t = &sc->sc_timings;
+ u_int offset = 9;
+
+ t->sifs = 16;
+ if (IEEE80211_IS_CHAN_ANYG(ic->ic_curchan)) {
+ offset = 20;
+ if (ic->ic_flags & IEEE80211_F_SHSLOT)
+ offset = 9;
+ } else if (IEEE80211_IS_CHAN_A(ic->ic_curchan)) {
+ offset = 9;
+ }
+
+ if (IEEE80211_IS_CHAN_TURBO(ic->ic_curchan)) {
+ offset = 6;
+ t->sifs = 8;
+ } else if (IEEE80211_IS_CHAN_HALF(ic->ic_curchan)) {
+ offset = 13;
+ t->sifs = 32;
+ } else if (IEEE80211_IS_CHAN_QUARTER(ic->ic_curchan)) {
+ offset = 21;
+ t->sifs = 64;
+ }
+
+ t->slot = offset + sc->sc_coverage;
+ t->ack = t->slot * 2 + 3;
+ t->cts = t->slot * 2 + 3;
if (sc->sc_slottimeconf > 0)
- ath_hal_setslottime(ah, offset + sc->sc_slottimeconf);
+ t->slot = sc->sc_slottimeconf;
if (sc->sc_acktimeconf > 0)
- ath_hal_setacktimeout(ah, 2 * offset + sc->sc_acktimeconf);
+ t->ack = sc->sc_acktimeconf;
if (sc->sc_ctstimeconf > 0)
- ath_hal_setctstimeout(ah, 2 * offset + sc->sc_ctstimeconf);
+ t->cts = sc->sc_ctstimeconf;
+
+ t->difs = 2 * t->sifs + t->slot;
+ t->eifs = t->sifs + t->difs + 3;
+
+ ath_hal_setslottime(ah, t->slot);
+ ath_hal_setacktimeout(ah, t->ack);
+ ath_hal_setctstimeout(ah, t->cts);
+ ath_hal_seteifstime(ah, t->eifs);
+
sc->sc_updateslot = OK;
}
@@ -4515,7 +4553,7 @@ ath_updateslot(struct net_device *dev)
if (ic->ic_opmode == IEEE80211_M_HOSTAP)
sc->sc_updateslot = UPDATE;
else if (dev->flags & IFF_RUNNING)
- ath_settiming(sc);
+ ath_set_timing(sc);
}
#ifdef ATH_SUPERG_DYNTURBO
@@ -5359,7 +5397,7 @@ 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))
- ath_settiming(sc); /* commit change to hardware */
+ ath_set_timing(sc); /* commit change to hardware */
if (bfaddr != 0) {
/*
@@ -9429,7 +9467,8 @@ ath_set_coverageclass(struct ieee80211co
{
struct ath_softc *sc = ic->ic_dev->priv;
- ath_hal_setcoverageclass(sc->sc_ah, ic->ic_coverageclass, 0);
+ sc->sc_coverage = ic->ic_coverageclass * 3;
+ ath_set_timing(sc);
return;
}
@@ -10950,6 +10989,7 @@ enum {
ATH_OFDM_WEAK_DET = 29,
ATH_CHANBW = 30,
ATH_OUTDOOR = 31,
+ ATH_DISTANCE = 32,
};
/*
@@ -11162,21 +11202,31 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
sc->sc_slottimeconf = val;
else
sc->sc_slottimeconf = 0;
- ath_settiming(sc);
+ ath_set_timing(sc);
break;
case ATH_ACKTIMEOUT:
if (val > 0)
sc->sc_acktimeconf = val;
else
sc->sc_acktimeconf = 0;
- ath_settiming(sc);
+ ath_set_timing(sc);
break;
case ATH_CTSTIMEOUT:
if (val > 0)
sc->sc_ctstimeconf = val;
else
sc->sc_ctstimeconf = 0;
- ath_settiming(sc);
+ ath_set_timing(sc);
+ break;
+ case ATH_DISTANCE:
+ if (val > 0) {
+ sc->sc_coverage = ((val - 1) / 300) + 1;
+ ic->ic_coverageclass = ((sc->sc_coverage - 1) / 3) + 1;
+ } else {
+ sc->sc_coverage = 0;
+ ic->ic_coverageclass = 0;
+ }
+ ath_set_timing(sc);
break;
case ATH_SOFTLED:
if (val != sc->sc_softled) {
@@ -11332,6 +11382,9 @@ ATH_SYSCTL_DECL(ath_sysctl_halparam, ctl
case ATH_CHANBW:
val = sc->sc_chanbw ?: 20;
break;
+ case ATH_DISTANCE:
+ val = sc->sc_coverage * 300;
+ break;
case ATH_SLOTTIME:
val = ath_hal_getslottime(ah);
break;
@@ -11453,6 +11506,12 @@ static const ctl_table ath_sysctl_templa
.extra2 = (void *)ATH_CTSTIMEOUT,
},
{ .ctl_name = CTL_AUTO,
+ .procname = "distance",
+ .mode = 0644,
+ .proc_handler = ath_sysctl_halparam,
+ .extra2 = (void *)ATH_DISTANCE,
+ },
+ { .ctl_name = CTL_AUTO,
.procname = "softled",
.mode = 0644,
.proc_handler = ath_sysctl_halparam,
--- a/ath/if_ath_hal.h
+++ b/ath/if_ath_hal.h
@@ -284,6 +284,17 @@ static inline u_int ath_hal_getslottime(
return ret;
}
+static inline u_int ath_hal_geteifstime(struct ath_hal *ah)
+{
+ u_int ret;
+ ATH_HAL_LOCK_IRQ(ah->ah_sc);
+ ath_hal_set_function(__func__);
+ ret = ah->ah_getEifsTime(ah);
+ ath_hal_set_function(NULL);
+ ATH_HAL_UNLOCK_IRQ(ah->ah_sc);
+ return ret;
+}
+
static inline void ath_hal_beaconinit(struct ath_hal *ah, u_int32_t nexttbtt,
u_int32_t intval)
{
@@ -841,6 +852,17 @@ static inline HAL_BOOL ath_hal_setslotti
return ret;
}
+static inline HAL_BOOL ath_hal_seteifstime(struct ath_hal *ah, u_int a1)
+{
+ HAL_BOOL ret;
+ ATH_HAL_LOCK_IRQ(ah->ah_sc);
+ ath_hal_set_function(__func__);
+ ret = ah->ah_setEifsTime(ah, a1);
+ ath_hal_set_function(NULL);
+ ATH_HAL_UNLOCK_IRQ(ah->ah_sc);
+ return ret;
+}
+
static inline void ath_hal_setledstate(struct ath_hal *ah, HAL_LED_STATE a1)
{
ATH_HAL_LOCK_IRQ(ah->ah_sc);
--- a/ath/if_athvar.h
+++ b/ath/if_athvar.h
@@ -613,6 +613,15 @@ struct ath_rp {
int rp_analyzed;
};
+struct ath_timings {
+ u_int slot;
+ u_int ack;
+ u_int cts;
+ u_int sifs;
+ u_int difs;
+ u_int eifs;
+};
+
struct ath_softc {
struct ieee80211com sc_ic; /* NB: must be first */
struct net_device *sc_dev;
@@ -838,6 +847,8 @@ struct ath_softc {
* detected radars */
u_int32_t sc_nexttbtt;
u_int64_t sc_last_tsf;
+ u_int sc_coverage;
+ struct ath_timings sc_timings;
};
typedef void (*ath_callback) (struct ath_softc *);
@@ -945,49 +956,76 @@ int ar_device(int devid);
DEV_NAME(_v->iv_ic->ic_dev))
void ath_radar_detected(struct ath_softc *sc, const char* message);
-static inline u_int getTimingOffset(struct ath_softc *sc)
-{
- struct ieee80211com *ic = &sc->sc_ic;
- u_int usec = 9;
- if (IEEE80211_IS_CHAN_ANYG(ic->ic_curchan)) {
- usec = 20;
- if (ic->ic_flags & IEEE80211_F_SHSLOT)
- usec = 9;
- } else if (IEEE80211_IS_CHAN_A(ic->ic_curchan))
- usec = 9;
-
- if (IEEE80211_IS_CHAN_TURBO(ic->ic_curchan))
- usec = 6;
-
- if (IEEE80211_IS_CHAN_HALF(ic->ic_curchan))
- usec = 13;
- else if (IEEE80211_IS_CHAN_QUARTER(ic->ic_curchan))
- usec = 21;
- return usec;
-}
-static inline void ath_get_timings(struct ath_softc *sc, u_int *t_slot, u_int *t_sifs, u_int *t_difs)
-{
- struct ieee80211_channel *c = sc->sc_ic.ic_curchan;
+#ifndef MIN
+#define MIN(a,b) ((a) < (b) ? (a) : (b))
+#endif
+#ifndef MAX
+#define MAX(a,b) ((a) > (b) ? (a) : (b))
+#endif
- *t_slot = getTimingOffset(sc) + sc->sc_slottimeconf;
- if (IEEE80211_IS_CHAN_HALF(c)) {
- *t_sifs = 32;
- *t_difs = 56;
- } else if (IEEE80211_IS_CHAN_QUARTER(c)) {
- *t_sifs = 64;
- *t_difs = 112;
- } else if (IEEE80211_IS_CHAN_TURBO(c)) {
- *t_sifs = 8;
- *t_difs = 28;
- } else {
- *t_sifs = 16;
- *t_difs = 28;
- }
+/* Calculate the transmit duration of a frame. */
+static inline unsigned
+calc_usecs_unicast_packet(struct ath_softc *sc, int length,
+ int rix, int short_retries, int long_retries)
+{
+ const HAL_RATE_TABLE *rt = sc->sc_currates;
+ struct ieee80211com *ic = &sc->sc_ic;
+ struct ath_timings *t = &sc->sc_timings;
+ unsigned int x = 0, tt = 0;
+ unsigned int cix = rt->info[rix].controlRate;
+ int rts = 0, cts = 0;
+ int cw = ATH_DEFAULT_CWMIN;
+
+ KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
+
+ if (!rt->info[rix].rateKbps) {
+ printk(KERN_WARNING "rix %d (%d) bad ratekbps %d mode %u\n",
+ rix, rt->info[rix].dot11Rate,
+ rt->info[rix].rateKbps,
+ sc->sc_curmode);
+ return 0;
+ }
+
+ if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
+ (rt->info[rix].phy == IEEE80211_T_OFDM)) {
+
+ if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
+ rts = 1;
+ else if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
+ cts = 1;
+
+ cix = rt->info[sc->sc_protrix].controlRate;
+ }
+
+ if ((rts || cts) && rt->info[cix].rateKbps) {
+ int ctsrate = rt->info[cix].rateCode;
+ int ctsduration = 0;
+
+ ctsrate |= rt->info[cix].shortPreamble;
+ if (rts) /* SIFS + CTS */
+ ctsduration += rt->info[cix].spAckDuration;
+
+ ctsduration += ath_hal_computetxtime(sc->sc_ah,
+ rt, length, rix, AH_TRUE);
+
+ if (cts) /* SIFS + ACK */
+ ctsduration += rt->info[cix].spAckDuration;
+
+ tt += (short_retries + 1) * ctsduration;
+ }
+ tt += t->difs;
+ tt += (long_retries + 1) * (t->sifs + rt->info[rix].spAckDuration);
+ tt += (long_retries + 1) * ath_hal_computetxtime(sc->sc_ah, rt, length,
+ rix, AH_TRUE);
+ for (x = 0; x <= short_retries + long_retries; x++) {
+ cw = MIN(ATH_DEFAULT_CWMAX, (cw + 1) * 2);
+ tt += (t->slot * cw / 2);
+ }
+ return tt;
}
-
struct ath_hw_detect {
const char *vendor_name;
const char *card_name;
--- a/ath_rate/minstrel/minstrel.c
+++ b/ath_rate/minstrel/minstrel.c
@@ -170,85 +170,6 @@ rate_to_ndx(struct minstrel_node *sn, in
return -1;
}
-/* Calculate the transmit duration of a frame. */
-static unsigned
-calc_usecs_unicast_packet(struct ath_softc *sc, int length,
- int rix, int short_retries, int long_retries)
-{
- const HAL_RATE_TABLE *rt = sc->sc_currates;
- struct ieee80211com *ic = &sc->sc_ic;
- unsigned t_slot = 20;
- unsigned t_difs = 50;
- unsigned t_sifs = 10;
- unsigned int x = 0, tt = 0;
- unsigned int cix = rt->info[rix].controlRate;
- int rts = 0, cts = 0;
- int cw = ATH_DEFAULT_CWMIN;
-
- KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
-
- if (!rt->info[rix].rateKbps) {
- printk(KERN_WARNING "rix %d (%d) bad ratekbps %d mode %u\n",
- rix, rt->info[rix].dot11Rate,
- rt->info[rix].rateKbps,
- sc->sc_curmode);
- return 0;
- }
-
- ath_get_timings(sc, &t_slot, &t_sifs, &t_difs);
- if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
- (rt->info[rix].phy == IEEE80211_T_OFDM)) {
- if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
- rts = 1;
- else if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
- cts = 1;
-
- cix = rt->info[sc->sc_protrix].controlRate;
- }
-
-#if 0
- if (length > ic->ic_rtsthreshold)
- rts = 1;
-#endif
-
- if (rts || cts) {
- int ctsrate = rt->info[cix].rateCode;
- int ctsduration = 0;
-
- if (!rt->info[cix].rateKbps) {
-#if 0
- printk(KERN_WARNING "cix %d (%d) bad ratekbps %d mode %u\n",
- cix, rt->info[cix].dot11Rate,
- rt->info[cix].rateKbps,
- sc->sc_curmode);
-#endif
- return 0;
- }
-
-
- ctsrate |= rt->info[cix].shortPreamble;
- if (rts) /* SIFS + CTS */
- ctsduration += rt->info[cix].spAckDuration;
-
- ctsduration += ath_hal_computetxtime(sc->sc_ah,
- rt, length, rix, AH_TRUE);
-
- if (cts) /* SIFS + ACK */
- ctsduration += rt->info[cix].spAckDuration;
-
- tt += (short_retries + 1) * ctsduration;
- }
- tt += t_difs;
- tt += (long_retries + 1) * (t_sifs + rt->info[rix].spAckDuration);
- tt += (long_retries + 1) * ath_hal_computetxtime(sc->sc_ah, rt, length,
- rix, AH_TRUE);
- for (x = 0; x <= short_retries + long_retries; x++) {
- cw = MIN(ATH_DEFAULT_CWMAX, (cw + 1) * 2);
- tt += (t_slot * cw / 2);
- }
- return tt;
-}
-
static void
ath_rate_node_init(struct ath_softc *sc, struct ath_node *an)
{
--- a/ath_rate/sample/sample.c
+++ b/ath_rate/sample/sample.c
@@ -137,92 +137,6 @@ rate_to_ndx(struct sample_node *sn, int
return -1;
}
-/*
- * Calculate the transmit duration of a frame.
- */
-static unsigned
-calc_usecs_unicast_packet(struct ath_softc *sc, int length,
- int rix, int short_retries, int long_retries)
-{
- const HAL_RATE_TABLE *rt = sc->sc_currates;
- int rts, cts;
-
- unsigned t_slot;
- unsigned t_difs;
- unsigned t_sifs;
- struct ieee80211com *ic = &sc->sc_ic;
- unsigned int tt = 0;
- unsigned int x;
- unsigned int cw = ATH_DEFAULT_CWMIN;
- unsigned int cix = rt->info[rix].controlRate;
- KASSERT(rt != NULL, ("no rate table, mode %u", sc->sc_curmode));
-
- if (!rt->info[rix].rateKbps) {
- printk(KERN_WARNING "rix %u (%u) bad ratekbps %u mode %u\n",
- rix, rt->info[rix].dot11Rate,
- rt->info[rix].rateKbps,
- sc->sc_curmode);
-
- return 0;
- }
-
- cix = rt->info[rix].controlRate;
- /*
- * XXX getting mac/phy level timings should be fixed for turbo
- * rates, and there is probably a way to get this from the
- * hal...
- */
- ath_get_timings(sc, &t_slot, &t_sifs, &t_difs);
- rts = cts = 0;
-
- if ((ic->ic_flags & IEEE80211_F_USEPROT) &&
- rt->info[rix].phy == IEEE80211_T_OFDM) {
- if (ic->ic_protmode == IEEE80211_PROT_RTSCTS)
- rts = 1;
- else if (ic->ic_protmode == IEEE80211_PROT_CTSONLY)
- cts = 1;
-
- cix = rt->info[sc->sc_protrix].controlRate;
- }
-
- if (0 /*length > ic->ic_rtsthreshold */)
- rts = 1;
-
- if (rts || cts) {
- int ctsrate;
- int ctsduration = 0;
-
- if (!rt->info[cix].rateKbps) {
- printk(KERN_WARNING "cix %u (%u) bad ratekbps %u mode %u\n",
- cix, rt->info[cix].dot11Rate,
- rt->info[cix].rateKbps,
- sc->sc_curmode);
- return 0;
- }
-
-
- ctsrate = rt->info[cix].rateCode | rt->info[cix].shortPreamble;
- if (rts) /* SIFS + CTS */
- ctsduration += rt->info[cix].spAckDuration;
-
- ctsduration += ath_hal_computetxtime(sc->sc_ah,
- rt, length, rix, AH_TRUE);
-
- if (cts) /* SIFS + ACK */
- ctsduration += rt->info[cix].spAckDuration;
-
- tt += (short_retries + 1) * ctsduration;
- }
- tt += t_difs;
- tt += (long_retries+1)*(t_sifs + rt->info[rix].spAckDuration);
- tt += (long_retries+1)*ath_hal_computetxtime(sc->sc_ah, rt, length,
- rix, AH_TRUE);
- for (x = 0; x <= short_retries + long_retries; x++) {
- cw = MIN(ATH_DEFAULT_CWMAX, (cw + 1) * 2);
- tt += (t_slot * cw / 2);
- }
- return tt;
-}
static void
ath_rate_node_init(struct ath_softc *sc, struct ath_node *an)
--- a/net80211/ieee80211_wireless.c
+++ b/net80211/ieee80211_wireless.c
@@ -2736,6 +2736,7 @@ ieee80211_ioctl_setparam(struct net_devi
case IEEE80211_PARAM_COVERAGE_CLASS:
if (value <= IEEE80211_COVERAGE_CLASS_MAX) {
ic->ic_coverageclass = value;
+ ic->ic_set_coverageclass(ic);
if (IS_UP_AUTO(vap))
ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
retv = 0;
--- a/net80211/ieee80211_var.h
+++ b/net80211/ieee80211_var.h
@@ -94,7 +94,7 @@
#define IEEE80211_BGSCAN_TRIGGER_INTVL 20 /* min trigger interval for thresh based bgscan (secs) */
-#define IEEE80211_COVERAGE_CLASS_MAX 31 /* max coverage class */
+#define IEEE80211_COVERAGE_CLASS_MAX 255 /* max coverage class */
#define IEEE80211_REGCLASSIDS_MAX 10 /* max regclass id list */
#define IEEE80211_PS_SLEEP 0x1 /* STA is in power saving mode */
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -50,7 +50,7 @@ all: compile
DEBUG = -DAR_DEBUG
-ALLPROGS= athstats 80211stats athkey athchans athctrl \
+ALLPROGS= athstats 80211stats athkey athchans \
athdebug 80211debug wlanconfig ath_info
OBJS= $(patsubst %,%.o,$(ALLPROGS))
--- a/tools/athctrl.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/*-
- * Copyright (c) 2002-2004 Gunter Burchardt, Local-Web AG
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer,
- * without modification.
- * 2. Redistributions in binary form must reproduce at minimum a disclaimer
- * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
- * redistribution must be conditioned upon including a substantially
- * similar Disclaimer requirement for further binary redistribution.
- * 3. Neither the names of the above-listed copyright holders nor the names
- * of any contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * Alternatively, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") version 2 as published by the Free
- * Software Foundation.
- *
- * NO WARRANTY
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
- * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
- * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
- * THE POSSIBILITY OF SUCH DAMAGES.
- *
- * $Id: athctrl.c 2394 2007-05-30 01:41:18Z mtaylor $
- */
-
-/*
- * Simple Atheros-specific tool to inspect and set atheros specific values
- * athctrl [-i interface] [-d distance]
- * (default interface is wifi0).
- */
-#include <sys/types.h>
-#include <sys/file.h>
-
-#include <getopt.h>
-
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <err.h>
-
-#include <net/if.h>
-#include "do_multi.h"
-
-static int
-setsysctrl(const char *dev, const char *control , u_long value)
-{
- char buffer[256];
- FILE * fd;
-
- snprintf(buffer, sizeof(buffer), "/proc/sys/dev/%s/%s", dev, control);
- fd = fopen(buffer, "w");
- if (fd != NULL) {
- fprintf(fd, "%li", value);
- fclose(fd);
- } else
- fprintf(stderr, "Could not open %s for writing!\n", buffer);
-
- return 0;
-}
-
-static void usage(void)
-{
- fprintf(stderr,
- "Atheros driver control\n"
- "Copyright (c) 2002-2004 Gunter Burchardt, Local-Web AG\n"
- "\n"
- "usage: athctrl [-i interface] [-d distance]\n"
- "\n"
- "options:\n"
- " -h show this usage\n"
- " -i interface (default interface is wifi0)\n"
- " -d specify the maximum distance of a sta or the distance\n"
- " of the master\n");
-
- exit(1);
-}
-
-int
-CMD(athctrl)(int argc, char *argv[])
-{
- char device[IFNAMSIZ + 1];
- int distance = -1;
- int c;
-
- strncpy(device, "wifi0", sizeof (device));
-
- for (;;) {
- c = getopt(argc, argv, "d:i:h");
- if (c < 0)
- break;
- switch (c) {
- case 'h':
- usage();
- break;
- case 'd':
- distance = atoi(optarg);
- break;
- case 'i':
- strncpy(device, optarg, sizeof (device));
- break;
- default:
- usage();
- break;
- }
- }
-
- if (distance >= 0) {
- int slottime = (distance / 300) + ((distance % 300) ? 1 : 0);
- int acktimeout = slottime * 2 + 3;
- int ctstimeout = slottime * 2 + 3;
-
- printf("Setting distance on interface %s to %i meters\n",
- device, distance);
- setsysctrl(device, "slottime", slottime);
- setsysctrl(device, "acktimeout", acktimeout);
- setsysctrl(device, "ctstimeout", ctstimeout);
- } else
- usage();
- return 0;
-}
--- a/tools/do_multi.c
+++ b/tools/do_multi.c
@@ -18,8 +18,6 @@ main(int argc, char *argv[])
ret = a80211stats_init(argc, argv);
if(strcmp(progname, "athchans") == 0)
ret = athchans_init(argc, argv);
- if(strcmp(progname, "athctrl") == 0)
- ret = athctrl_init(argc, argv);
#ifdef AR_DEBUG
if(strcmp(progname, "athdebug") == 0)
ret = athdebug_init(argc, argv);
--- a/tools/do_multi.h
+++ b/tools/do_multi.h
@@ -2,7 +2,6 @@
int a80211debug_init(int argc, char *argv[]);
int a80211stats_init(int argc, char *argv[]);
int athchans_init(int argc, char *argv[]);
-int athctrl_init(int argc, char *argv[]);
int athdebug_init(int argc, char *argv[]);
int athkey_init(int argc, char *argv[]);
int athstats_init(int argc, char *argv[]);