diff options
| author | Xinming Hu | 2014-12-23 14:44:07 +0100 |
|---|---|---|
| committer | Kalle Valo | 2015-01-06 19:54:11 +0100 |
| commit | cbf6e05527a7654ac1c4f4787dfd7a182fcc0c73 (patch) | |
| tree | b4c5415b1a99372cd00395b3c09e38262f39e18c /drivers/net/wireless/mwifiex/util.c | |
| parent | mwifiex: add bcn_rcv_cnt and bcn_miss_cnt in getlog debugfs (diff) | |
| download | kernel-qcow2-linux-cbf6e05527a7654ac1c4f4787dfd7a182fcc0c73.tar.gz kernel-qcow2-linux-cbf6e05527a7654ac1c4f4787dfd7a182fcc0c73.tar.xz kernel-qcow2-linux-cbf6e05527a7654ac1c4f4787dfd7a182fcc0c73.zip | |
mwifiex: add rx histogram statistics support
This patch add a new debugfs item histogram used for reporting
rx data packet statitics(rx rate, snr, noise floor, signal strenth)
to userspace.
Signed-off-by: Xinming Hu <huxm@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Diffstat (limited to 'drivers/net/wireless/mwifiex/util.c')
| -rw-r--r-- | drivers/net/wireless/mwifiex/util.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/util.c b/drivers/net/wireless/mwifiex/util.c index 3bd917975e5b..6a83c04cf307 100644 --- a/drivers/net/wireless/mwifiex/util.c +++ b/drivers/net/wireless/mwifiex/util.c @@ -406,3 +406,44 @@ void mwifiex_del_all_sta_list(struct mwifiex_private *priv) spin_unlock_irqrestore(&priv->sta_list_spinlock, flags); return; } + +/* This function adds histogram data to histogram array*/ +void mwifiex_hist_data_add(struct mwifiex_private *priv, + u8 rx_rate, s8 snr, s8 nflr) +{ + struct mwifiex_histogram_data *phist_data = priv->hist_data; + + if (atomic_read(&phist_data->num_samples) > MWIFIEX_HIST_MAX_SAMPLES) + mwifiex_hist_data_reset(priv); + mwifiex_hist_data_set(priv, rx_rate, snr, nflr); +} + +/* function to add histogram record */ +void mwifiex_hist_data_set(struct mwifiex_private *priv, u8 rx_rate, s8 snr, + s8 nflr) +{ + struct mwifiex_histogram_data *phist_data = priv->hist_data; + + atomic_inc(&phist_data->num_samples); + atomic_inc(&phist_data->rx_rate[rx_rate]); + atomic_inc(&phist_data->snr[snr]); + atomic_inc(&phist_data->noise_flr[128 + nflr]); + atomic_inc(&phist_data->sig_str[nflr - snr]); +} + +/* function to reset histogram data during init/reset */ +void mwifiex_hist_data_reset(struct mwifiex_private *priv) +{ + int ix; + struct mwifiex_histogram_data *phist_data = priv->hist_data; + + atomic_set(&phist_data->num_samples, 0); + for (ix = 0; ix < MWIFIEX_MAX_AC_RX_RATES; ix++) + atomic_set(&phist_data->rx_rate[ix], 0); + for (ix = 0; ix < MWIFIEX_MAX_SNR; ix++) + atomic_set(&phist_data->snr[ix], 0); + for (ix = 0; ix < MWIFIEX_MAX_NOISE_FLR; ix++) + atomic_set(&phist_data->noise_flr[ix], 0); + for (ix = 0; ix < MWIFIEX_MAX_SIG_STRENGTH; ix++) + atomic_set(&phist_data->sig_str[ix], 0); +} |