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ath10k: add log level configuration for fw_dbglog

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Introduce an optional log level configuration for the existing debugfs fw_dbglog file. It
allows users to configure the desired log level for firmware dbglog messages.

To configure log level as WARN:

echo 0xffffffff  2 > /sys/kernel/debug/ieee80211/phy0/ath10k/fw_dbglog

The values are:

VERBOSE		0
INFO		1
WARN		2
ERR		3

Signed-off-by: SenthilKumar Jegadeesan <sjegadee@qti.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
SenthilKumar Jegadeesan
2015-01-29 14:36:52 +05:30
committed by Kalle Valo
parent 75930d1a80
commit 467210a67b
5 changed files with 33 additions and 16 deletions
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32
drivers/net/wireless/ath/ath10k/debug.c
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@@ -1318,10 +1318,10 @@ static ssize_t ath10k_read_fw_dbglog(struct file *file,
{
struct ath10k *ar = file->private_data;
unsigned int len;
char buf[32];
char buf[64];
len = scnprintf(buf, sizeof(buf), "0x%08x\n",
ar->debug.fw_dbglog_mask);
len = scnprintf(buf, sizeof(buf), "0x%08x %u\n",
ar->debug.fw_dbglog_mask, ar->debug.fw_dbglog_level);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
@@ -1331,19 +1331,32 @@ static ssize_t ath10k_write_fw_dbglog(struct file *file,
size_t count, loff_t *ppos)
{
struct ath10k *ar = file->private_data;
unsigned long mask;
int ret;
char buf[64];
unsigned int log_level, mask;
ret = kstrtoul_from_user(user_buf, count, 0, &mask);
if (ret)
return ret;
simple_write_to_buffer(buf, sizeof(buf) - 1, ppos, user_buf, count);
/* make sure that buf is null terminated */
buf[sizeof(buf) - 1] = 0;
ret = sscanf(buf, "%x %u", &mask, &log_level);
if (!ret)
return -EINVAL;
if (ret == 1)
/* default if user did not specify */
log_level = ATH10K_DBGLOG_LEVEL_WARN;
mutex_lock(&ar->conf_mutex);
ar->debug.fw_dbglog_mask = mask;
ar->debug.fw_dbglog_level = log_level;
if (ar->state == ATH10K_STATE_ON) {
ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
ar->debug.fw_dbglog_level);
if (ret) {
ath10k_warn(ar, "dbglog cfg failed from debugfs: %d\n",
ret);
@@ -1685,7 +1698,8 @@ int ath10k_debug_start(struct ath10k *ar)
ret);
if (ar->debug.fw_dbglog_mask) {
ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask);
ret = ath10k_wmi_dbglog_cfg(ar, ar->debug.fw_dbglog_mask,
ATH10K_DBGLOG_LEVEL_WARN);
if (ret)
/* not serious */
ath10k_warn(ar, "failed to enable dbglog during start: %d",