Print channel survey results on the debugfs. New entry named "survey"
Signed-off-by: Vladimir Kondratiev <[email protected]> --- drivers/net/wireless/ath/wil6210/debugfs.c | 60 ++++++++++++++++++++++++++++++ 1 file changed, 60 insertions(+) diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c index 75219a1..42bc6e6 100644 --- a/drivers/net/wireless/ath/wil6210/debugfs.c +++ b/drivers/net/wireless/ath/wil6210/debugfs.c @@ -1414,6 +1414,65 @@ static const struct file_operations fops_sta = { .llseek = seq_lseek, }; +/*---------Survey results------------*/ +static int wil_survey_debugfs_show(struct seq_file *s, void *data) +{ + struct wil6210_priv *wil = s->private; + int i, n_ch; + u16 filled; + + if (!wil->survey_ready) { + seq_puts(s, "Survey not ready\n"); + return 0; + } + seq_printf(s, "dwell_time : %d\n", + le32_to_cpu(wil->survey_reply.evt.dwell_time)); + filled = le16_to_cpu(wil->survey_reply.evt.filled); + n_ch = min_t(int, wil->survey_reply.evt.num_scanned_channels, + ARRAY_SIZE(wil->survey_reply.ch_info)); + +#define ACS_FILLED(x) (filled & WMI_ACS_INFO_BITMASK_ ## x) ? \ + " " __stringify(x) : "" + seq_printf(s, "Filled : 0x%04x%s%s%s%s%s\n", filled, + ACS_FILLED(BEACON_FOUND), + ACS_FILLED(BUSY_TIME), + ACS_FILLED(TX_TIME), + ACS_FILLED(RX_TIME), + ACS_FILLED(NOISE) + ); +#undef ACS_FILLED + seq_printf(s, "Channels [%d] {\n", n_ch); + for (i = 0; i < n_ch; i++) { + struct scan_channel_info *ch = &wil->survey_reply.ch_info[i]; + + seq_printf(s, " [%d]", ch->channel); +#define ACS_PRINT(x, str, field) do { if (filled & WMI_ACS_INFO_BITMASK_ ## x) \ + seq_printf(s, " %s : %d", str, field); \ + } while (0) + ACS_PRINT(BEACON_FOUND, "bcon", ch->beacon_found); + ACS_PRINT(BUSY_TIME, "busy", le16_to_cpu(ch->busy_time)); + ACS_PRINT(TX_TIME, "tx", le16_to_cpu(ch->tx_time)); + ACS_PRINT(RX_TIME, "rx", le16_to_cpu(ch->rx_time)); + ACS_PRINT(NOISE, "noise", ch->noise); +#undef ACS_PRINT + seq_puts(s, "\n"); + } + seq_puts(s, "}\n"); + return 0; +} + +static int wil_survey_seq_open(struct inode *inode, struct file *file) +{ + return single_open(file, wil_survey_debugfs_show, inode->i_private); +} + +static const struct file_operations fops_survey = { + .open = wil_survey_seq_open, + .release = single_release, + .read = seq_read, + .llseek = seq_lseek, +}; + /*----------------*/ static void wil6210_debugfs_init_blobs(struct wil6210_priv *wil, struct dentry *dbg) @@ -1460,6 +1519,7 @@ static const struct { {"link", S_IRUGO, &fops_link}, {"info", S_IRUGO, &fops_info}, {"recovery", S_IRUGO | S_IWUSR, &fops_recovery}, + {"survey", S_IRUGO, &fops_survey}, }; static void wil6210_debugfs_init_files(struct wil6210_priv *wil, -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
