/*
* Process all the Netlink messages from Logger Socket app in user space
*/
static int wlan_logging_proc_sock_rx_msg(struct sk_buff *skb)
{
tAniNlHdr *wnl;
int radio;
int type;
int ret;
if (TRUE == vos_isUnloadInProgress())
{
pr_info("%s: unload in progress\n",__func__);
return -ENODEV;
}
wnl = (tAniNlHdr *) skb->data;
radio = wnl->radio;
type = wnl->nlh.nlmsg_type;
if (radio < 0 || radio > ANI_MAX_RADIOS) {
pr_err("%s: invalid radio id [%d]\n",
__func__, radio);
return -EINVAL;
}
if (gapp_pid != INVALID_PID) {
if (wnl->nlh.nlmsg_pid > gapp_pid) {
gapp_pid = wnl->nlh.nlmsg_pid;
}
spin_lock_bh(&gwlan_logging.spin_lock);
if (gwlan_logging.pcur_node->filled_length) {
wlan_queue_logmsg_for_app();
}
spin_unlock_bh(&gwlan_logging.spin_lock);
set_bit(HOST_LOG_POST, &gwlan_logging.event_flag);
wake_up_interruptible(&gwlan_logging.wait_queue);
} else {
/* This is to set the default levels (WLAN logging
* default values not the VOS trace default) when
* logger app is registered for the first time.
*/
gapp_pid = wnl->nlh.nlmsg_pid;
}
ret = wlan_send_sock_msg_to_app(&wnl->wmsg, 0,
ANI_NL_MSG_LOG, wnl->nlh.nlmsg_pid);
if (ret < 0) {
pr_err("wlan_send_sock_msg_to_app: failed");
}
return ret;
}
/*
* Process all the Netlink messages from Logger Socket app in user space
*/
static int wlan_logging_proc_sock_rx_msg(struct sk_buff *skb)
{
tAniNlHdr *wnl;
int radio;
int type;
int ret;
wnl = (tAniNlHdr *) skb->data;
radio = wnl->radio;
type = wnl->nlh.nlmsg_type;
if (radio < 0 || radio > ANI_MAX_RADIOS) {
LOGGING_TRACE(VOS_TRACE_LEVEL_ERROR,
"%s: invalid radio id [%d]\n",
__func__, radio);
return -EINVAL;
}
if (gapp_pid != INVALID_PID) {
if (wnl->nlh.nlmsg_pid > gapp_pid) {
gapp_pid = wnl->nlh.nlmsg_pid;
}
spin_lock_bh(&gwlan_logging.spin_lock);
if (gwlan_logging.pcur_node->filled_length) {
wlan_queue_logmsg_for_app();
}
spin_unlock_bh(&gwlan_logging.spin_lock);
gwlan_logging.wakeEvent = TRUE;
wake_up_interruptible(&gwlan_logging.wait_queue);
} else {
/* This is to set the default levels (WLAN logging
* default values not the VOS trace default) when
* logger app is registered for the first time.
*/
gapp_pid = wnl->nlh.nlmsg_pid;
set_default_logtoapp_log_level();
}
ret = wlan_send_sock_msg_to_app(&wnl->wmsg, 0,
ANI_NL_MSG_LOG, wnl->nlh.nlmsg_pid);
if (ret < 0) {
LOGGING_TRACE(VOS_TRACE_LEVEL_ERROR,
"wlan_send_sock_msg_to_app: failed");
}
return ret;
}
int wlan_log_to_user(VOS_TRACE_LEVEL log_level, char *to_be_sent, int length)
{
/* Add the current time stamp */
char *ptr;
char tbuf[50];
int tlen;
int total_log_len;
unsigned int *pfilled_length;
bool wake_up_thread = false;
unsigned long flags;
struct timeval tv;
if (gapp_pid == INVALID_PID) {
/*
* This is to make sure that we print the logs to kmsg console
* when no logger app is running. This is also needed to
* log the initial messages during loading of driver where even
* if app is running it will not be able to
* register with driver immediately and start logging all the
* messages.
*/
pr_err("%s\n", to_be_sent);
}
/* Format the Log time [Secondselapsedinaday.microseconds] */
do_gettimeofday(&tv);
tlen = snprintf(tbuf, sizeof(tbuf), "[%s][%5lu.%06lu] ", current->comm,
(unsigned long) (tv.tv_sec%SECONDS_IN_A_DAY),
tv.tv_usec);
/* 1+1 indicate '\n'+'\0' */
total_log_len = length + tlen + 1 + 1;
spin_lock_irqsave(&gwlan_logging.spin_lock, flags);
// wlan logging svc resources are not yet initialized
if (!gwlan_logging.pcur_node) {
spin_unlock_irqrestore(&gwlan_logging.spin_lock, flags);
return -EIO;
}
pfilled_length = &gwlan_logging.pcur_node->filled_length;
/* Check if we can accomodate more log into current node/buffer */
if ((MAX_LOGMSG_LENGTH - (*pfilled_length + sizeof(tAniNlHdr))) <
total_log_len) {
wake_up_thread = true;
wlan_queue_logmsg_for_app();
pfilled_length = &gwlan_logging.pcur_node->filled_length;
}
ptr = &gwlan_logging.pcur_node->logbuf[sizeof(tAniHdr)];
/* Assumption here is that we receive logs which is always less than
* MAX_LOGMSG_LENGTH, where we can accomodate the
* tAniNlHdr + [context][timestamp] + log
* VOS_ASSERT if we cannot accomodate the the complete log into
* the available buffer.
*
* Continue and copy logs to the available length and discard the rest.
*/
if (MAX_LOGMSG_LENGTH < (sizeof(tAniNlHdr) + total_log_len)) {
VOS_ASSERT(0);
total_log_len = MAX_LOGMSG_LENGTH - sizeof(tAniNlHdr) - 2;
}
vos_mem_copy(&ptr[*pfilled_length], tbuf, tlen);
vos_mem_copy(&ptr[*pfilled_length + tlen], to_be_sent,
min(length, (total_log_len - tlen)));
*pfilled_length += tlen + min(length, total_log_len - tlen);
ptr[*pfilled_length] = '\n';
*pfilled_length += 1;
spin_unlock_irqrestore(&gwlan_logging.spin_lock, flags);
/* Wakeup logger thread */
if ((true == wake_up_thread)) {
/* If there is logger app registered wakeup the logging
* thread Else broadcast a Ready Indication message,
* apps which are waiting on this message can
* register for the logs.
*/
if ( (gapp_pid != INVALID_PID)) {
wake_up_interruptible(&gwlan_logging.wait_queue);
}
else {
wlan_logging_srv_nl_ready_indication();
}
}
if ((gapp_pid != INVALID_PID)
&& gwlan_logging.log_fe_to_console
&& ((VOS_TRACE_LEVEL_FATAL == log_level)
|| (VOS_TRACE_LEVEL_ERROR == log_level))) {
pr_err("%s\n", to_be_sent);
}
return 0;
}
int wlan_log_to_user(VOS_TRACE_LEVEL log_level, char *to_be_sent, int length)
{
/* Add the current time stamp */
char *ptr;
char tbuf[100];
int tlen;
int total_log_len;
unsigned int *pfilled_length;
bool wake_up_thread = false;
unsigned long flags;
struct timeval tv;
struct rtc_time tm;
unsigned long local_time;
u64 qtimer_ticks;
if (!vos_is_multicast_logging()) {
/*
* This is to make sure that we print the logs to kmsg console
* when no logger app is running. This is also needed to
* log the initial messages during loading of driver where even
* if app is running it will not be able to
* register with driver immediately and start logging all the
* messages.
*/
pr_err("%s\n", to_be_sent);
} else {
/* Format the Log time [hr:min:sec.microsec] */
do_gettimeofday(&tv);
/* Convert rtc to local time */
local_time = (u32)(tv.tv_sec - (sys_tz.tz_minuteswest * 60));
rtc_time_to_tm(local_time, &tm);
/* Firmware Time Stamp */
qtimer_ticks = arch_counter_get_cntpct();
tlen = snprintf(tbuf, sizeof(tbuf), "[%02d:%02d:%02d.%06lu] [%016llX]"
" [%.5s] ", tm.tm_hour, tm.tm_min, tm.tm_sec, tv.tv_usec,
qtimer_ticks, current->comm);
/* 1+1 indicate '\n'+'\0' */
total_log_len = length + tlen + 1 + 1;
spin_lock_irqsave(&gwlan_logging.spin_lock, flags);
// wlan logging svc resources are not yet initialized
if (!gwlan_logging.pcur_node) {
spin_unlock_irqrestore(&gwlan_logging.spin_lock, flags);
return -EIO;
}
pfilled_length = &gwlan_logging.pcur_node->filled_length;
/* Check if we can accomodate more log into current node/buffer */
if (MAX_LOGMSG_LENGTH < (*pfilled_length + sizeof(tAniNlHdr) +
total_log_len)) {
wake_up_thread = true;
wlan_queue_logmsg_for_app();
pfilled_length = &gwlan_logging.pcur_node->filled_length;
}
ptr = &gwlan_logging.pcur_node->logbuf[sizeof(tAniHdr)];
/* Assumption here is that we receive logs which is always less than
* MAX_LOGMSG_LENGTH, where we can accomodate the
* tAniNlHdr + [context][timestamp] + log
* VOS_ASSERT if we cannot accomodate the the complete log into
* the available buffer.
*
* Continue and copy logs to the available length and discard the rest.
*/
if (MAX_LOGMSG_LENGTH < (sizeof(tAniNlHdr) + total_log_len)) {
VOS_ASSERT(0);
total_log_len = MAX_LOGMSG_LENGTH - sizeof(tAniNlHdr) - 2;
}
vos_mem_copy(&ptr[*pfilled_length], tbuf, tlen);
vos_mem_copy(&ptr[*pfilled_length + tlen], to_be_sent,
min(length, (total_log_len - tlen)));
*pfilled_length += tlen + min(length, total_log_len - tlen);
ptr[*pfilled_length] = '\n';
*pfilled_length += 1;
spin_unlock_irqrestore(&gwlan_logging.spin_lock, flags);
/* Wakeup logger thread */
if ((true == wake_up_thread)) {
/* If there is logger app registered wakeup the logging
* thread
*/
set_bit(HOST_LOG_POST, &gwlan_logging.event_flag);
wake_up_interruptible(&gwlan_logging.wait_queue);
}
if (gwlan_logging.log_fe_to_console
&& ((VOS_TRACE_LEVEL_FATAL == log_level)
|| (VOS_TRACE_LEVEL_ERROR == log_level))) {
pr_err("%s %s\n",tbuf, to_be_sent);
}
}
return 0;
}
