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dahdi-base: Add debug option to log RBS bit changes

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Logs the RBS bits to dmesg, for troubleshooting, for all drivers that call
dahdi_rbsbits(). Added the DEBUG_RBS bit in the debug module parameter
bitfield.

(issue #18025)

Acked-by: Shaun Ruffell <sruffell@digium.com>
Signed-off-by: Russ Meyerriecks <rmeyerriecks@digium.com>

git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@9487 a0bf4364-ded3-4de4-8d8a-66a801d63aff
This commit is contained in:
Russ Meyerriecks
2010-11-18 17:15:07 +00:00
parent 76f35e5d31
commit 1e2923566d
1 changed files with 15 additions and 6 deletions
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21
drivers/dahdi/dahdi-base.c
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@@ -179,6 +179,8 @@ static struct class_simple *dahdi_class = NULL;
static int deftaps = 64;
static int debug;
#define DEBUG_MAIN (1 << 0)
#define DEBUG_RBS (1 << 5)
/*!
* \brief states for transmit signalling
@@ -3465,7 +3467,7 @@ void dahdi_alarm_notify(struct dahdi_span *span)
for (x=1; x<maxspans; x++) {
struct dahdi_span *const s = spans[x];
if (s && !s->alarms && (s->flags & DAHDI_FLAG_RUNNING)) {
if (debug && (master != s)) {
if ((debug & DEBUG_MAIN) && (master != s)) {
module_printk(KERN_NOTICE,
"Master changed to %s\n",
s->name);
@@ -3475,7 +3477,7 @@ void dahdi_alarm_notify(struct dahdi_span *span)
}
}
/* Report more detailed alarms */
if (debug) {
if (debug & DEBUG_MAIN) {
if (span->alarms & DAHDI_ALARM_LOS) {
module_printk(KERN_NOTICE,
"Span %d: Loss of signal\n",
@@ -6057,14 +6059,14 @@ int dahdi_register(struct dahdi_span *span, int prefmaster)
}
}
if (debug) {
if (debug & DEBUG_MAIN) {
module_printk(KERN_NOTICE, "Registered Span %d ('%s') with "
"%d channels\n", span->spanno, span->name, span->channels);
}
if (!master || prefmaster) {
master = span;
if (debug) {
if (debug & DEBUG_MAIN) {
module_printk(KERN_NOTICE, "Span ('%s') is new master\n",
span->name);
}
@@ -6108,7 +6110,7 @@ int dahdi_unregister(struct dahdi_span *span)
module_printk(KERN_ERR, "Span %s has spanno %d which is something else\n", span->name, span->spanno);
return -1;
}
if (debug)
if (debug & DEBUG_MAIN)
module_printk(KERN_NOTICE, "Unregistering Span '%s' with %d channels\n", span->name, span->channels);
#ifdef CONFIG_PROC_FS
snprintf(tempfile, sizeof(tempfile)-1, "dahdi/%d", span->spanno);
@@ -6138,7 +6140,7 @@ int dahdi_unregister(struct dahdi_span *span)
}
maxspans = new_maxspans;
if (master != new_master)
if (debug)
if (debug & DEBUG_MAIN)
module_printk(KERN_NOTICE, "%s: Span ('%s') is new master\n", __FUNCTION__,
(new_master)? new_master->name: "no master");
master = new_master;
@@ -7132,6 +7134,10 @@ void dahdi_rbsbits(struct dahdi_chan *chan, int cursig)
/* Keep track of signalling for next time */
chan->rxsig = cursig;
spin_unlock_irqrestore(&chan->lock, flags);
if ((debug & DEBUG_RBS) && printk_ratelimit()) {
chan_notice(chan, "Detected sigbits change to %04x\n", cursig);
}
}
static void process_echocan_events(struct dahdi_chan *chan)
@@ -8633,6 +8639,9 @@ MODULE_ALIAS("dahdi_dummy");
MODULE_VERSION(DAHDI_VERSION);
module_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Sets debugging verbosity as a bitfield, to see"\
" general debugging set this to 1. To see RBS debugging set"\
" this to 32");
module_param(deftaps, int, 0644);
static const struct file_operations dahdi_fops = {