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ath9k: Add statistics for antenna diversity 

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Sujith Manoharan 2013-08-01 20:57:06 +05:30 committed by John W. Linville
parent 37133002f5
commit e3d5291436
3 changed files with 95 additions and 28 deletions
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18
drivers/net/wireless/ath/ath9k/antenna.c
View File

@ -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;

85
drivers/net/wireless/ath/ath9k/debug.c
View File

@ -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_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_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_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_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_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_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_config_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
as_alt->lna_config_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_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_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_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_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_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;

20
drivers/net/wireless/ath/ath9k/debug.h
View File

@ -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 */