diff options
Diffstat (limited to 'package/mac80211/patches/522-ath9k_per_chain_signal_strength.patch')
| -rw-r--r-- | package/mac80211/patches/522-ath9k_per_chain_signal_strength.patch | 384 |
1 files changed, 384 insertions, 0 deletions
diff --git a/package/mac80211/patches/522-ath9k_per_chain_signal_strength.patch b/package/mac80211/patches/522-ath9k_per_chain_signal_strength.patch new file mode 100644 index 000000000..8b26a50b3 --- /dev/null +++ b/package/mac80211/patches/522-ath9k_per_chain_signal_strength.patch @@ -0,0 +1,384 @@ +--- a/include/net/mac80211.h ++++ b/include/net/mac80211.h +@@ -729,6 +729,9 @@ enum mac80211_rx_flags { + * @signal: signal strength when receiving this frame, either in dBm, in dB or + * unspecified depending on the hardware capabilities flags + * @IEEE80211_HW_SIGNAL_* ++ * @chains: bitmask of receive chains for which separate signal strength ++ * values were filled. ++ * @chain_signal: per-chain signal strength, same format as @signal + * @antenna: antenna used + * @rate_idx: index of data rate into band's supported rates or MCS index if + * HT rates are use (RX_FLAG_HT) +@@ -749,6 +752,8 @@ struct ieee80211_rx_status { + u8 band; + u8 antenna; + s8 signal; ++ u8 chains; ++ s8 chain_signal[4]; + u8 ampdu_delimiter_crc; + }; + +--- a/net/mac80211/sta_info.h ++++ b/net/mac80211/sta_info.h +@@ -325,6 +325,11 @@ struct sta_info { + unsigned long rx_dropped; + int last_signal; + struct ewma avg_signal; ++ ++ u8 chains; ++ s8 chain_signal_last[4]; ++ struct ewma chain_signal_avg[4]; ++ + /* Plus 1 for non-QoS frames */ + __le16 last_seq_ctrl[NUM_RX_DATA_QUEUES + 1]; + +--- a/net/mac80211/rx.c ++++ b/net/mac80211/rx.c +@@ -1271,6 +1271,7 @@ ieee80211_rx_h_sta_process(struct ieee80 + struct sk_buff *skb = rx->skb; + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; ++ int i; + + if (!sta) + return RX_CONTINUE; +@@ -1315,6 +1316,19 @@ ieee80211_rx_h_sta_process(struct ieee80 + ewma_add(&sta->avg_signal, -status->signal); + } + ++ if (status->chains) { ++ sta->chains = status->chains; ++ for (i = 0; i < 4; i++) { ++ int signal = status->chain_signal[i]; ++ ++ if (!(status->chains & BIT(i))) ++ continue; ++ ++ sta->chain_signal_last[i] = signal; ++ ewma_add(&sta->chain_signal_avg[i], -signal); ++ } ++ } ++ + /* + * Change STA power saving mode only at the end of a frame + * exchange sequence. +--- a/net/mac80211/sta_info.c ++++ b/net/mac80211/sta_info.c +@@ -254,6 +254,8 @@ struct sta_info *sta_info_alloc(struct i + do_posix_clock_monotonic_gettime(&uptime); + sta->last_connected = uptime.tv_sec; + ewma_init(&sta->avg_signal, 1024, 8); ++ for (i = 0; i < ARRAY_SIZE(sta->chain_signal_avg); i++) ++ ewma_init(&sta->chain_signal_avg[i], 1024, 8); + + if (sta_prepare_rate_control(local, sta, gfp)) { + kfree(sta); +--- a/include/net/cfg80211.h ++++ b/include/net/cfg80211.h +@@ -549,6 +549,8 @@ struct station_parameters { + * @STATION_INFO_STA_FLAGS: @sta_flags filled + * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled + * @STATION_INFO_T_OFFSET: @t_offset filled ++ * @STATION_INFO_CHAIN_SIGNAL: @chain_signal filled ++ * @STATION_INFO_CHAIN_SIGNAL_AVG: @chain_signal_avg filled + */ + enum station_info_flags { + STATION_INFO_INACTIVE_TIME = 1<<0, +@@ -572,6 +574,8 @@ enum station_info_flags { + STATION_INFO_STA_FLAGS = 1<<18, + STATION_INFO_BEACON_LOSS_COUNT = 1<<19, + STATION_INFO_T_OFFSET = 1<<20, ++ STATION_INFO_CHAIN_SIGNAL = 1<<21, ++ STATION_INFO_CHAIN_SIGNAL_AVG = 1<<22, + }; + + /** +@@ -655,6 +659,9 @@ struct sta_bss_parameters { + * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. + * @signal_avg: Average signal strength, type depends on the wiphy's signal_type. + * For CFG80211_SIGNAL_TYPE_MBM, value is expressed in _dBm_. ++ * @chains: bitmask for filled values in @chain_signal, @chain_signal_avg ++ * @chain_signal: per-chain signal strength of last received packet in dBm ++ * @chain_signal_avg: per-chain signal strength average in dBm + * @txrate: current unicast bitrate from this station + * @rxrate: current unicast bitrate to this station + * @rx_packets: packets received from this station +@@ -687,6 +694,11 @@ struct station_info { + u8 plink_state; + s8 signal; + s8 signal_avg; ++ ++ u8 chains; ++ s8 chain_signal[4]; ++ s8 chain_signal_avg[4]; ++ + struct rate_info txrate; + struct rate_info rxrate; + u32 rx_packets; +--- a/drivers/net/wireless/ath/ath9k/mac.h ++++ b/drivers/net/wireless/ath/ath9k/mac.h +@@ -133,12 +133,8 @@ struct ath_rx_status { + u8 rs_rate; + u8 rs_antenna; + u8 rs_more; +- int8_t rs_rssi_ctl0; +- int8_t rs_rssi_ctl1; +- int8_t rs_rssi_ctl2; +- int8_t rs_rssi_ext0; +- int8_t rs_rssi_ext1; +- int8_t rs_rssi_ext2; ++ int8_t rs_rssi_ctl[3]; ++ int8_t rs_rssi_ext[3]; + u8 rs_isaggr; + u8 rs_moreaggr; + u8 rs_num_delims; +--- a/drivers/net/wireless/ath/ath9k/recv.c ++++ b/drivers/net/wireless/ath/ath9k/recv.c +@@ -955,6 +955,7 @@ static int ath9k_rx_skb_preprocess(struc + bool *decrypt_error) + { + struct ath_hw *ah = common->ah; ++ int i, j; + + /* + * everything but the rate is checked here, the rate check is done +@@ -980,6 +981,20 @@ static int ath9k_rx_skb_preprocess(struc + if (rx_stats->rs_moreaggr) + rx_status->flag |= RX_FLAG_NO_SIGNAL_VAL; + ++ for (i = 0, j = 0; i < ARRAY_SIZE(rx_stats->rs_rssi_ctl); i++) { ++ s8 rssi; ++ ++ if (!(ah->rxchainmask & BIT(i))) ++ continue; ++ ++ rssi = rx_stats->rs_rssi_ctl[i]; ++ if (rssi != ATH9K_RSSI_BAD) { ++ rx_status->chains |= BIT(j); ++ rx_status->chain_signal[j] = ah->noise + rssi; ++ } ++ j++; ++ } ++ + return 0; + } + +--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c ++++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c +@@ -458,12 +458,12 @@ int ath9k_hw_process_rxdesc_edma(struct + + /* XXX: Keycache */ + rxs->rs_rssi = MS(rxsp->status5, AR_RxRSSICombined); +- rxs->rs_rssi_ctl0 = MS(rxsp->status1, AR_RxRSSIAnt00); +- rxs->rs_rssi_ctl1 = MS(rxsp->status1, AR_RxRSSIAnt01); +- rxs->rs_rssi_ctl2 = MS(rxsp->status1, AR_RxRSSIAnt02); +- rxs->rs_rssi_ext0 = MS(rxsp->status5, AR_RxRSSIAnt10); +- rxs->rs_rssi_ext1 = MS(rxsp->status5, AR_RxRSSIAnt11); +- rxs->rs_rssi_ext2 = MS(rxsp->status5, AR_RxRSSIAnt12); ++ rxs->rs_rssi_ctl[0] = MS(rxsp->status1, AR_RxRSSIAnt00); ++ rxs->rs_rssi_ctl[1] = MS(rxsp->status1, AR_RxRSSIAnt01); ++ rxs->rs_rssi_ctl[2] = MS(rxsp->status1, AR_RxRSSIAnt02); ++ rxs->rs_rssi_ext[0] = MS(rxsp->status5, AR_RxRSSIAnt10); ++ rxs->rs_rssi_ext[1] = MS(rxsp->status5, AR_RxRSSIAnt11); ++ rxs->rs_rssi_ext[2] = MS(rxsp->status5, AR_RxRSSIAnt12); + + if (rxsp->status11 & AR_RxKeyIdxValid) + rxs->rs_keyix = MS(rxsp->status11, AR_KeyIdx); +--- a/drivers/net/wireless/ath/ath9k/mac.c ++++ b/drivers/net/wireless/ath/ath9k/mac.c +@@ -553,25 +553,25 @@ int ath9k_hw_rxprocdesc(struct ath_hw *a + + if (ads.ds_rxstatus8 & AR_PostDelimCRCErr) { + rs->rs_rssi = ATH9K_RSSI_BAD; +- rs->rs_rssi_ctl0 = ATH9K_RSSI_BAD; +- rs->rs_rssi_ctl1 = ATH9K_RSSI_BAD; +- rs->rs_rssi_ctl2 = ATH9K_RSSI_BAD; +- rs->rs_rssi_ext0 = ATH9K_RSSI_BAD; +- rs->rs_rssi_ext1 = ATH9K_RSSI_BAD; +- rs->rs_rssi_ext2 = ATH9K_RSSI_BAD; ++ rs->rs_rssi_ctl[0] = ATH9K_RSSI_BAD; ++ rs->rs_rssi_ctl[1] = ATH9K_RSSI_BAD; ++ rs->rs_rssi_ctl[2] = ATH9K_RSSI_BAD; ++ rs->rs_rssi_ext[0] = ATH9K_RSSI_BAD; ++ rs->rs_rssi_ext[1] = ATH9K_RSSI_BAD; ++ rs->rs_rssi_ext[2] = ATH9K_RSSI_BAD; + } else { + rs->rs_rssi = MS(ads.ds_rxstatus4, AR_RxRSSICombined); +- rs->rs_rssi_ctl0 = MS(ads.ds_rxstatus0, ++ rs->rs_rssi_ctl[0] = MS(ads.ds_rxstatus0, + AR_RxRSSIAnt00); +- rs->rs_rssi_ctl1 = MS(ads.ds_rxstatus0, ++ rs->rs_rssi_ctl[1] = MS(ads.ds_rxstatus0, + AR_RxRSSIAnt01); +- rs->rs_rssi_ctl2 = MS(ads.ds_rxstatus0, ++ rs->rs_rssi_ctl[2] = MS(ads.ds_rxstatus0, + AR_RxRSSIAnt02); +- rs->rs_rssi_ext0 = MS(ads.ds_rxstatus4, ++ rs->rs_rssi_ext[0] = MS(ads.ds_rxstatus4, + AR_RxRSSIAnt10); +- rs->rs_rssi_ext1 = MS(ads.ds_rxstatus4, ++ rs->rs_rssi_ext[1] = MS(ads.ds_rxstatus4, + AR_RxRSSIAnt11); +- rs->rs_rssi_ext2 = MS(ads.ds_rxstatus4, ++ rs->rs_rssi_ext[2] = MS(ads.ds_rxstatus4, + AR_RxRSSIAnt12); + } + if (ads.ds_rxstatus8 & AR_RxKeyIdxValid) +--- a/drivers/net/wireless/ath/ath9k/debug.c ++++ b/drivers/net/wireless/ath/ath9k/debug.c +@@ -997,12 +997,12 @@ void ath_debug_stat_rx(struct ath_softc + #ifdef CONFIG_ATH9K_MAC_DEBUG + spin_lock(&sc->debug.samp_lock); + RX_SAMP_DBG(jiffies) = jiffies; +- RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl0; +- RX_SAMP_DBG(rssi_ctl1) = rs->rs_rssi_ctl1; +- RX_SAMP_DBG(rssi_ctl2) = rs->rs_rssi_ctl2; +- RX_SAMP_DBG(rssi_ext0) = rs->rs_rssi_ext0; +- RX_SAMP_DBG(rssi_ext1) = rs->rs_rssi_ext1; +- RX_SAMP_DBG(rssi_ext2) = rs->rs_rssi_ext2; ++ RX_SAMP_DBG(rssi_ctl0) = rs->rs_rssi_ctl[0]; ++ RX_SAMP_DBG(rssi_ctl1) = rs->rs_rssi_ctl[1]; ++ RX_SAMP_DBG(rssi_ctl2) = rs->rs_rssi_ctl[2]; ++ RX_SAMP_DBG(rssi_ext0) = rs->rs_rssi_ext[0]; ++ RX_SAMP_DBG(rssi_ext1) = rs->rs_rssi_ext[1]; ++ RX_SAMP_DBG(rssi_ext2) = rs->rs_rssi_ext[2]; + RX_SAMP_DBG(antenna) = rs->rs_antenna; + RX_SAMP_DBG(rssi) = rs->rs_rssi; + RX_SAMP_DBG(rate) = rs->rs_rate; +--- a/include/linux/nl80211.h ++++ b/include/linux/nl80211.h +@@ -1760,6 +1760,8 @@ enum nl80211_sta_bss_param { + * @NL80211_STA_INFO_STA_FLAGS: Contains a struct nl80211_sta_flag_update. + * @NL80211_STA_INFO_BEACON_LOSS: count of times beacon loss was detected (u32) + * @NL80211_STA_INFO_T_OFFSET: timing offset with respect to this STA (s64) ++ * @NL80211_STA_INFO_CHAIN_SIGNAL: per-chain signal strength of last PPDU ++ * @NL80211_STA_INFO_CHAIN_SIGNAL_AVG: per-chain signal strength average + * @__NL80211_STA_INFO_AFTER_LAST: internal + * @NL80211_STA_INFO_MAX: highest possible station info attribute + */ +@@ -1784,6 +1786,8 @@ enum nl80211_sta_info { + NL80211_STA_INFO_STA_FLAGS, + NL80211_STA_INFO_BEACON_LOSS, + NL80211_STA_INFO_T_OFFSET, ++ NL80211_STA_INFO_CHAIN_SIGNAL, ++ NL80211_STA_INFO_CHAIN_SIGNAL_AVG, + + /* keep last */ + __NL80211_STA_INFO_AFTER_LAST, +--- a/net/wireless/nl80211.c ++++ b/net/wireless/nl80211.c +@@ -2769,6 +2769,32 @@ nla_put_failure: + return false; + } + ++static bool nl80211_put_signal(struct sk_buff *msg, u8 mask, s8 *signal, ++ int id) ++{ ++ void *attr; ++ int i = 0; ++ ++ if (!mask) ++ return true; ++ ++ attr = nla_nest_start(msg, id); ++ if (!attr) ++ return false; ++ ++ for (i = 0; i < 4; i++) { ++ if (!(mask & BIT(i))) ++ continue; ++ ++ if (nla_put_u8(msg, i, signal[i])) ++ return false; ++ } ++ ++ nla_nest_end(msg, attr); ++ ++ return true; ++} ++ + static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, + int flags, + struct cfg80211_registered_device *rdev, +@@ -2830,6 +2856,18 @@ static int nl80211_send_station(struct s + default: + break; + } ++ if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL) { ++ if (!nl80211_put_signal(msg, sinfo->chains, ++ sinfo->chain_signal, ++ NL80211_STA_INFO_CHAIN_SIGNAL)) ++ goto nla_put_failure; ++ } ++ if (sinfo->filled & STATION_INFO_CHAIN_SIGNAL_AVG) { ++ if (!nl80211_put_signal(msg, sinfo->chains, ++ sinfo->chain_signal_avg, ++ NL80211_STA_INFO_CHAIN_SIGNAL_AVG)) ++ goto nla_put_failure; ++ } + if (sinfo->filled & STATION_INFO_TX_BITRATE) { + if (!nl80211_put_sta_rate(msg, &sinfo->txrate, + NL80211_STA_INFO_TX_BITRATE)) +--- a/net/mac80211/cfg.c ++++ b/net/mac80211/cfg.c +@@ -367,6 +367,7 @@ static void sta_set_sinfo(struct sta_inf + struct ieee80211_sub_if_data *sdata = sta->sdata; + struct ieee80211_local *local = sdata->local; + struct timespec uptime; ++ int i; + + sinfo->generation = sdata->local->sta_generation; + +@@ -406,6 +407,17 @@ static void sta_set_sinfo(struct sta_inf + sinfo->signal = (s8)sta->last_signal; + sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal); + } ++ if (sta->chains) { ++ sinfo->filled |= STATION_INFO_CHAIN_SIGNAL | ++ STATION_INFO_CHAIN_SIGNAL_AVG; ++ ++ sinfo->chains = sta->chains; ++ for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) { ++ sinfo->chain_signal[i] = sta->chain_signal_last[i]; ++ sinfo->chain_signal_avg[i] = ++ (s8) -ewma_read(&sta->chain_signal_avg[i]); ++ } ++ } + + sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate); + +--- a/drivers/net/wireless/ath/ath9k/dfs.c ++++ b/drivers/net/wireless/ath/ath9k/dfs.c +@@ -164,8 +164,8 @@ void ath9k_dfs_process_phyerr(struct ath + return; + } + +- ard.rssi = rs->rs_rssi_ctl0; +- ard.ext_rssi = rs->rs_rssi_ext0; ++ ard.rssi = rs->rs_rssi_ctl[0]; ++ ard.ext_rssi = rs->rs_rssi_ext[0]; + + /* + * hardware stores this as 8 bit signed value. +--- a/drivers/net/wireless/ath/ath9k/antenna.c ++++ b/drivers/net/wireless/ath/ath9k/antenna.c +@@ -529,14 +529,14 @@ void ath_ant_comb_scan(struct ath_softc + struct ath_ant_comb *antcomb = &sc->ant_comb; + int alt_ratio = 0, alt_rssi_avg = 0, main_rssi_avg = 0, curr_alt_set; + int curr_main_set; +- int main_rssi = rs->rs_rssi_ctl0; +- int alt_rssi = rs->rs_rssi_ctl1; ++ int main_rssi = rs->rs_rssi_ctl[0]; ++ int alt_rssi = rs->rs_rssi_ctl[1]; + int rx_ant_conf, main_ant_conf; + bool short_scan = false; + +- rx_ant_conf = (rs->rs_rssi_ctl2 >> ATH_ANT_RX_CURRENT_SHIFT) & ++ rx_ant_conf = (rs->rs_rssi_ctl[2] >> ATH_ANT_RX_CURRENT_SHIFT) & + ATH_ANT_RX_MASK; +- main_ant_conf = (rs->rs_rssi_ctl2 >> ATH_ANT_RX_MAIN_SHIFT) & ++ main_ant_conf = (rs->rs_rssi_ctl[2] >> ATH_ANT_RX_MAIN_SHIFT) & + ATH_ANT_RX_MASK; + + /* Record packet only when both main_rssi and alt_rssi is positive */ |