diff options
| -rw-r--r-- | package/madwifi/patches/414-txpower.patch | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/package/madwifi/patches/414-txpower.patch b/package/madwifi/patches/414-txpower.patch new file mode 100644 index 000000000..3e7e315d1 --- /dev/null +++ b/package/madwifi/patches/414-txpower.patch @@ -0,0 +1,243 @@ +--- a/net80211/ieee80211.c ++++ b/net80211/ieee80211.c +@@ -270,6 +270,7 @@ ieee80211_ifattach(struct ieee80211com * + ("invalid number of channels specified: %u", ic->ic_nchans)); + memset(ic->ic_chan_avail, 0, sizeof(ic->ic_chan_avail)); + ic->ic_modecaps |= 1 << IEEE80211_MODE_AUTO; ++ ic->ic_max_txpower = IEEE80211_TXPOWER_MIN; + + for (i = 0; i < ic->ic_nchans; i++) { + c = &ic->ic_channels[i]; +@@ -277,6 +278,7 @@ ieee80211_ifattach(struct ieee80211com * + KASSERT(c->ic_ieee < IEEE80211_CHAN_MAX, + ("channel with bogus ieee number %u", c->ic_ieee)); + setbit(ic->ic_chan_avail, c->ic_ieee); ++ ic->ic_max_txpower = max(ic->ic_max_txpower, (u16) c->ic_maxpower * 2); + + if (c->ic_scanflags & IEEE80211_NOSCAN_DEFAULT) + c->ic_scanflags |= IEEE80211_NOSCAN_SET; +@@ -346,8 +348,6 @@ ieee80211_ifattach(struct ieee80211com * + TAILQ_INIT(&ic->ic_vaps); + + ic->ic_txpowlimit = IEEE80211_TXPOWER_MAX; +- ic->ic_txpowlimit = IEEE80211_TXPOWER_MIN; +- ic->ic_newtxpowlimit = IEEE80211_TXPOWER_MAX; + + init_timer(&ic->ic_dfs_excl_timer); + ic->ic_dfs_excl_timer.function = +--- a/net80211/ieee80211_node.c ++++ b/net80211/ieee80211_node.c +@@ -1125,7 +1125,7 @@ ieee80211_alloc_node(struct ieee80211vap + + ni->ni_chan = IEEE80211_CHAN_ANYC; + ni->ni_authmode = IEEE80211_AUTH_OPEN; +- ni->ni_txpower = ic->ic_txpowlimit; ++ ni->ni_txpower = IEEE80211_TXPOWER_MAX; + + ieee80211_crypto_resetkey(vap, &ni->ni_ucastkey, + IEEE80211_KEYIX_NONE); +--- a/net80211/ieee80211_var.h ++++ b/net80211/ieee80211_var.h +@@ -343,8 +343,9 @@ struct ieee80211com { + u_int16_t ic_holdover; /* PM hold over duration */ + u_int16_t ic_bmissthreshold; /* beacon miss threshold (# beacons) */ + unsigned long ic_bmiss_guard; /* when to cease ignoring bmiss (jiffies) */ +- u_int16_t ic_txpowlimit; /* global tx power limit (in 0.5 dBm) */ +- u_int16_t ic_newtxpowlimit; /* tx power limit to change to (in 0.5 dBm) */ ++ u_int16_t ic_txpowlimit; /* configured global tx power limit (in 0.5 dBm) */ ++ u_int16_t ic_max_txpower; /* global hardware tx power limit */ ++ u_int16_t ic_cur_txpower; /* current tx power */ + u_int16_t ic_uapsdmaxtriggers; /* max triggers that could arrive */ + u_int8_t ic_coverageclass; /* coverage class */ + u_int8_t ic_protmode_rssi; /* rssi threshold for protection mode */ +--- a/net80211/ieee80211_wireless.c ++++ b/net80211/ieee80211_wireless.c +@@ -920,17 +920,23 @@ ieee80211_ioctl_giwrange(struct net_devi + u_int8_t reported[IEEE80211_CHAN_BYTES]; /* XXX stack usage? */ + int i, r; + int step = 0; ++ u_int16_t power; + + data->length = sizeof(struct iw_range); + memset(range, 0, sizeof(struct iw_range)); + ++ power = ic->ic_max_txpower; ++ if (ic->ic_bsschan && (ic->ic_bsschan != IEEE80211_CHAN_ANYC)) ++ power = min(power, ic->ic_bsschan->ic_maxpower); ++ + /* txpower (128 values, but will print out only IW_MAX_TXPOWER) */ +- range->num_txpower = (ic->ic_txpowlimit >= 8) ? IW_MAX_TXPOWER : ic->ic_txpowlimit; +- step = ic->ic_txpowlimit / (2 * (IW_MAX_TXPOWER - 1)); ++ power /= 2; /* Unit: 0.5 dBm */ ++ range->num_txpower = (power >= 8) ? IW_MAX_TXPOWER : power; ++ step = power / (IW_MAX_TXPOWER - 1); + + range->txpower[0] = 0; + for (i = 1; i < IW_MAX_TXPOWER; i++) +- range->txpower[i] = (ic->ic_txpowlimit/2) ++ range->txpower[i] = power + - (IW_MAX_TXPOWER - i - 1) * step; + + range->txpower_capa = IW_TXPOW_DBM; +@@ -1382,10 +1388,8 @@ ieee80211_ioctl_siwtxpow(struct net_devi + disabled = (fixed && vap->iv_bss->ni_txpower == 0); + if (rrq->disabled) { + if (!disabled) { +- if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0) +- return -EOPNOTSUPP; + ic->ic_flags |= IEEE80211_F_TXPOW_FIXED; +- vap->iv_bss->ni_txpower = 0; ++ ic->ic_txpowlimit = 0; + goto done; + } + return 0; +@@ -1396,30 +1400,12 @@ ieee80211_ioctl_siwtxpow(struct net_devi + return -EOPNOTSUPP; + if (rrq->flags != IW_TXPOW_DBM) + return -EINVAL; +- if (ic->ic_bsschan != IEEE80211_CHAN_ANYC) { +- if ((ic->ic_bsschan->ic_maxregpower >= rrq->value) && +- (ic->ic_txpowlimit/2 >= rrq->value)) { +- vap->iv_bss->ni_txpower = 2 * rrq->value; +- ic->ic_newtxpowlimit = 2 * rrq->value; +- ic->ic_flags |= IEEE80211_F_TXPOW_FIXED; +- } else +- return -EINVAL; +- } else { +- /* +- * No channel set yet +- */ +- if (ic->ic_txpowlimit/2 >= rrq->value) { +- vap->iv_bss->ni_txpower = 2 * rrq->value; +- ic->ic_newtxpowlimit = 2 * rrq->value; +- ic->ic_flags |= IEEE80211_F_TXPOW_FIXED; +- } +- else +- return -EINVAL; +- } ++ ic->ic_txpowlimit = 2 * rrq->value; ++ ic->ic_flags |= IEEE80211_F_TXPOW_FIXED; + } else { + if (!fixed) /* no change */ + return 0; +- ic->ic_newtxpowlimit = IEEE80211_TXPOWER_MAX; ++ ic->ic_txpowlimit = IEEE80211_TXPOWER_MAX; + ic->ic_flags &= ~IEEE80211_F_TXPOW_FIXED; + } + done: +@@ -1588,9 +1574,22 @@ ieee80211_ioctl_giwtxpow(struct net_devi + { + struct ieee80211vap *vap = dev->priv; + struct ieee80211com *ic = vap->iv_ic; +- +- rrq->value = vap->iv_bss->ni_txpower / 2; +- rrq->fixed = (ic->ic_flags & IEEE80211_F_TXPOW_FIXED) != 0; ++ unsigned int power = ic->ic_txpowlimit; ++ struct ieee80211_channel *c; ++ u_int16_t txp = ic->ic_max_txpower; ++ ++ if (ic->ic_bsschan && (ic->ic_bsschan != IEEE80211_CHAN_ANYC)) ++ txp = min(txp, ic->ic_bsschan->ic_maxpower); ++ } else if (ic->ic_cur_txpower > 0) { ++ txp = min(txp, ic->ic_cur_txpower); ++ } ++ if (ic->ic_flags & IEEE80211_F_TXPOW_FIXED) { ++ txp = min(txp, ic->ic_txpowlimit); ++ rrq->fixed = 1; ++ } else { ++ rrq->fixed = 0; ++ } ++ rrq->value = txp / 2; + rrq->disabled = (rrq->fixed && rrq->value == 0); + rrq->flags = IW_TXPOW_DBM; + return 0; +--- a/ath/if_ath.c ++++ b/ath/if_ath.c +@@ -380,7 +380,6 @@ static unsigned int ath_dump_hal_map(str + static u_int32_t ath_get_clamped_maxtxpower(struct ath_softc *sc); + static u_int32_t ath_set_clamped_maxtxpower(struct ath_softc *sc, + u_int32_t new_clamped_maxtxpower); +-static u_int32_t ath_get_real_maxtxpower(struct ath_softc *sc); + + static void ath_poll_disable(struct net_device *dev); + static void ath_poll_enable(struct net_device *dev); +@@ -3159,7 +3158,7 @@ ath_tx_startraw(struct net_device *dev, + try0 = ph->try0; + rt = sc->sc_currates; + txrate = dot11_to_ratecode(sc, rt, ph->rate0); +- power = ph->power > 60 ? 60 : ph->power; ++ power = ph->power > 63 ? 63 : ph->power; + hdrlen = ieee80211_anyhdrsize(wh); + pktlen = skb->len + IEEE80211_CRC_LEN; + +@@ -8381,7 +8380,7 @@ ath_tx_start(struct net_device *dev, str + pktlen, /* packet length */ + hdrlen, /* header length */ + atype, /* Atheros packet type */ +- MIN(ni->ni_txpower, 60), /* txpower */ ++ MIN(ni->ni_txpower, 63), /* txpower */ + txrate, try0, /* series 0 rate/tries */ + keyix, /* key cache index */ + antenna, /* antenna mode */ +@@ -10364,59 +10363,16 @@ ath_get_clamped_maxtxpower(struct ath_so + + /* XXX: this function needs some locking to avoid being called + * twice/interrupted */ +-/* 1. Save the currently specified maximum txpower (as clamped by madwifi) +- * 2. Determine the real maximum txpower the card can support by +- * setting a value that exceeds the maximum range (by one) and +- * finding out what it limits us to. +- * 3. Restore the saved maxtxpower value we had previously specified */ +-static u_int32_t +-ath_get_real_maxtxpower(struct ath_softc *sc) +-{ +- u_int32_t saved_clamped_maxtxpower; +- u_int32_t real_maxtxpower; +- +- saved_clamped_maxtxpower = ath_get_clamped_maxtxpower(sc); +- real_maxtxpower = +- ath_set_clamped_maxtxpower(sc, IEEE80211_TXPOWER_MAX + 1); +- ath_set_clamped_maxtxpower(sc, saved_clamped_maxtxpower); +- return real_maxtxpower; +-} +- +- +-/* XXX: this function needs some locking to avoid being called +- * twice/interrupted */ + static void + ath_update_txpow(struct ath_softc *sc) + { + struct ieee80211com *ic = &sc->sc_ic; + struct ieee80211vap *vap = NULL; + struct ath_hal *ah = sc->sc_ah; +- u_int32_t prev_clamped_maxtxpower = 0; +- u_int32_t new_clamped_maxtxpower = 0; + + /* Determine the previous value of maxtxpower */ +- prev_clamped_maxtxpower = ath_get_clamped_maxtxpower(sc); +- /* Determine the real maximum txpower the card can support */ +- ic->ic_txpowlimit = ath_get_real_maxtxpower(sc); +- /* Grab the new maxtxpower setting (which may have changed) */ +- new_clamped_maxtxpower = ic->ic_newtxpowlimit; +- /* Make sure the change is within limits, clamp it otherwise */ +- if (ic->ic_newtxpowlimit > ic->ic_txpowlimit) +- new_clamped_maxtxpower = ic->ic_txpowlimit; +- /* Search for the VAP that needs a txpow change, if any */ +- TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) { +- if (!tpc || ic->ic_newtxpowlimit != vap->iv_bss->ni_txpower) { +- vap->iv_bss->ni_txpower = new_clamped_maxtxpower; +- ieee80211_iterate_nodes(&vap->iv_ic->ic_sta, +- set_node_txpower, +- &new_clamped_maxtxpower); +- } +- } +- +- /* Store the assigned (clamped) maximum txpower and update the HAL */ +- sc->sc_curtxpow = new_clamped_maxtxpower; +- if (new_clamped_maxtxpower != prev_clamped_maxtxpower) +- ath_hal_settxpowlimit(ah, new_clamped_maxtxpower); ++ ath_set_clamped_maxtxpower(sc, ic->ic_txpowlimit); ++ ic->ic_cur_txpower = ath_get_clamped_maxtxpower(sc); + } + + #ifdef ATH_SUPERG_XR |