From e3d5291436ff9efeeb968459724af5332305dded Mon Sep 17 00:00:00 2001 From: Sujith Manoharan Date: Thu, 1 Aug 2013 20:57:06 +0530 Subject: [PATCH] ath9k: Add statistics for antenna diversity Signed-off-by: Sujith Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/antenna.c | 18 +++-- drivers/net/wireless/ath/ath9k/debug.c | 85 ++++++++++++++++++++---- drivers/net/wireless/ath/ath9k/debug.h | 20 ++++-- 3 files changed, 95 insertions(+), 28 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/antenna.c b/drivers/net/wireless/ath/ath9k/antenna.c index ea4ee08cddf2..291ca019d37b 100644 --- a/drivers/net/wireless/ath/ath9k/antenna.c +++ b/drivers/net/wireless/ath/ath9k/antenna.c @@ -695,15 +695,18 @@ void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs) antcomb->main_total_rssi += main_rssi; antcomb->alt_total_rssi += alt_rssi; - if (main_ant_conf == rx_ant_conf) { + if (main_ant_conf == rx_ant_conf) antcomb->main_recv_cnt++; - ANT_STAT_INC(ANT_MAIN, recv_cnt); - ANT_LNA_INC(ANT_MAIN, rx_ant_conf); - } else { + else antcomb->alt_recv_cnt++; - ANT_STAT_INC(ANT_ALT, recv_cnt); - ANT_LNA_INC(ANT_ALT, rx_ant_conf); - } + } + + if (main_ant_conf == rx_ant_conf) { + ANT_STAT_INC(ANT_MAIN, recv_cnt); + ANT_LNA_INC(ANT_MAIN, rx_ant_conf); + } else { + ANT_STAT_INC(ANT_ALT, recv_cnt); + ANT_LNA_INC(ANT_ALT, rx_ant_conf); } /* Short scan check */ @@ -782,6 +785,7 @@ void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs) div_comb_done: ath_ant_div_conf_fast_divbias(&div_ant_conf, antcomb, alt_ratio); ath9k_hw_antdiv_comb_conf_set(sc->sc_ah, &div_ant_conf); + ath9k_debug_stat_ant(sc, &div_ant_conf, main_rssi_avg, alt_rssi_avg); antcomb->scan_start_time = jiffies; antcomb->total_pkt_count = 0; diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c index d8764ae3371e..e744d9747697 100644 --- a/drivers/net/wireless/ath/ath9k/debug.c +++ b/drivers/net/wireless/ath/ath9k/debug.c @@ -321,6 +321,20 @@ static const struct file_operations fops_ant_diversity = { .llseek = default_llseek, }; +void ath9k_debug_stat_ant(struct ath_softc *sc, + struct ath_hw_antcomb_conf *div_ant_conf, + int main_rssi_avg, int alt_rssi_avg) +{ + struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN]; + struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT]; + + as_main->lna_attempt_cnt[div_ant_conf->main_lna_conf]++; + as_alt->lna_attempt_cnt[div_ant_conf->alt_lna_conf]++; + + as_main->rssi_avg = main_rssi_avg; + as_alt->rssi_avg = alt_rssi_avg; +} + static ssize_t read_file_antenna_diversity(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -330,9 +344,14 @@ static ssize_t read_file_antenna_diversity(struct file *file, struct ath9k_hw_capabilities *pCap = &ah->caps; struct ath_antenna_stats *as_main = &sc->debug.stats.ant_stats[ANT_MAIN]; struct ath_antenna_stats *as_alt = &sc->debug.stats.ant_stats[ANT_ALT]; + struct ath_hw_antcomb_conf div_ant_conf; unsigned int len = 0, size = 1024; ssize_t retval = 0; char *buf; + char *lna_conf_str[4] = {"LNA1_MINUS_LNA2", + "LNA2", + "LNA1", + "LNA1_PLUS_LNA2"}; buf = kzalloc(size, GFP_KERNEL); if (buf == NULL) @@ -344,28 +363,66 @@ static ssize_t read_file_antenna_diversity(struct file *file, goto exit; } + ath9k_ps_wakeup(sc); + ath9k_hw_antdiv_comb_conf_get(ah, &div_ant_conf); + len += snprintf(buf + len, size - len, "Current MAIN config : %s\n", + lna_conf_str[div_ant_conf.main_lna_conf]); + len += snprintf(buf + len, size - len, "Current ALT config : %s\n", + lna_conf_str[div_ant_conf.alt_lna_conf]); + len += snprintf(buf + len, size - len, "Average MAIN RSSI : %d\n", + as_main->rssi_avg); + len += snprintf(buf + len, size - len, "Average ALT RSSI : %d\n\n", + as_alt->rssi_avg); + ath9k_ps_restore(sc); + + len += snprintf(buf + len, size - len, "Packet Receive Cnt:\n"); + len += snprintf(buf + len, size - len, "-------------------\n"); + len += snprintf(buf + len, size - len, "%30s%15s\n", "MAIN", "ALT"); - len += snprintf(buf + len, size - len, "%-15s%15d%15d\n", - "RECV CNT", + len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n", + "TOTAL COUNT", as_main->recv_cnt, as_alt->recv_cnt); - len += snprintf(buf + len, size - len, "%-15s%15d%15d\n", + len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n", + "LNA1", + as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1], + as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1]); + len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n", + "LNA2", + as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2], + as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2]); + len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n", + "LNA1 + LNA2", + as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2], + as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]); + len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n", + "LNA1 - LNA2", + as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2], + as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]); + + len += snprintf(buf + len, size - len, "\nLNA Config Attempts:\n"); + len += snprintf(buf + len, size - len, "--------------------\n"); + + len += snprintf(buf + len, size - len, "%30s%15s\n", + "MAIN", "ALT"); + len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n", "LNA1", - as_main->lna_config_cnt[ATH_ANT_DIV_COMB_LNA1], - as_alt->lna_config_cnt[ATH_ANT_DIV_COMB_LNA1]); - len += snprintf(buf + len, size - len, "%-15s%15d%15d\n", + as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1], + as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1]); + len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n", "LNA2", - as_main->lna_config_cnt[ATH_ANT_DIV_COMB_LNA2], - as_alt->lna_config_cnt[ATH_ANT_DIV_COMB_LNA2]); - len += snprintf(buf + len, size - len, "%-15s%15d%15d\n", + as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2], + as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2]); + len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n", "LNA1 + LNA2", - as_main->lna_config_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2], - as_alt->lna_config_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]); - len += snprintf(buf + len, size - len, "%-15s%15d%15d\n", + as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2], + as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]); + len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n", "LNA1 - LNA2", - as_main->lna_config_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2], - as_alt->lna_config_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]); + as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2], + as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]); + exit: if (len > size) len = size; diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h index a879e451dc46..01c5c6a22e1b 100644 --- a/drivers/net/wireless/ath/ath9k/debug.h +++ b/drivers/net/wireless/ath/ath9k/debug.h @@ -29,7 +29,7 @@ struct fft_sample_tlv; #define TX_STAT_INC(q, c) sc->debug.stats.txstats[q].c++ #define RESET_STAT_INC(sc, type) sc->debug.stats.reset[type]++ #define ANT_STAT_INC(i, c) sc->debug.stats.ant_stats[i].c++ -#define ANT_LNA_INC(i, c) sc->debug.stats.ant_stats[i].lna_config_cnt[c]++; +#define ANT_LNA_INC(i, c) sc->debug.stats.ant_stats[i].lna_recv_cnt[c]++; #else #define TX_STAT_INC(q, c) do { } while (0) #define RESET_STAT_INC(sc, type) do { } while (0) @@ -252,7 +252,9 @@ struct ath_rx_stats { struct ath_antenna_stats { u32 recv_cnt; - u32 lna_config_cnt[4]; + u32 rssi_avg; + u32 lna_recv_cnt[4]; + u32 lna_attempt_cnt[4]; }; struct ath_stats { @@ -294,10 +296,11 @@ void ath9k_sta_remove_debugfs(struct ieee80211_hw *hw, struct ieee80211_vif *vif, struct ieee80211_sta *sta, struct dentry *dir); - void ath_debug_send_fft_sample(struct ath_softc *sc, struct fft_sample_tlv *fft_sample); - +void ath9k_debug_stat_ant(struct ath_softc *sc, + struct ath_hw_antcomb_conf *div_ant_conf, + int main_rssi_avg, int alt_rssi_avg); #else #define RX_STAT_INC(c) /* NOP */ @@ -310,12 +313,10 @@ static inline int ath9k_init_debug(struct ath_hw *ah) static inline void ath9k_deinit_debug(struct ath_softc *sc) { } - static inline void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status) { } - static inline void ath_debug_stat_tx(struct ath_softc *sc, struct ath_buf *bf, struct ath_tx_status *ts, @@ -323,10 +324,15 @@ static inline void ath_debug_stat_tx(struct ath_softc *sc, unsigned int flags) { } - static inline void ath_debug_stat_rx(struct ath_softc *sc, struct ath_rx_status *rs) { +} +static inline void ath9k_debug_stat_ant(struct ath_softc *sc, + struct ath_hw_antcomb_conf *div_ant_conf, + int main_rssi_avg, int alt_rssi_avg) +{ + } #endif /* CONFIG_ATH9K_DEBUGFS */ -- 2.20.1