mISDN: Add some debug option for clock problems
Add a new debug bit for clock problems.
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <kkeil@suse.de>
diff --git a/drivers/isdn/mISDN/dsp.h b/drivers/isdn/mISDN/dsp.h
index ded9480..98a33c58f 100644
--- a/drivers/isdn/mISDN/dsp.h
+++ b/drivers/isdn/mISDN/dsp.h
@@ -15,6 +15,7 @@
#define DEBUG_DSP_TONE 0x0020
#define DEBUG_DSP_BLOWFISH 0x0040
#define DEBUG_DSP_DELAY 0x0100
+#define DEBUG_DSP_CLOCK 0x0200
#define DEBUG_DSP_DTMFCOEFF 0x8000 /* heavy output */
/* options may be:
diff --git a/drivers/isdn/mISDN/dsp_cmx.c b/drivers/isdn/mISDN/dsp_cmx.c
index fc8ea41..93fb819 100644
--- a/drivers/isdn/mISDN/dsp_cmx.c
+++ b/drivers/isdn/mISDN/dsp_cmx.c
@@ -1192,7 +1192,7 @@
* we set our new read pointer, and write silence to buffer
*/
if (((dsp->rx_W-dsp->rx_R) & CMX_BUFF_MASK) >= CMX_BUFF_HALF) {
- if (dsp_debug & DEBUG_DSP_CMX)
+ if (dsp_debug & DEBUG_DSP_CLOCK)
printk(KERN_DEBUG
"cmx_receive(dsp=%lx): UNDERRUN (or overrun the "
"maximum delay), adjusting read pointer! "
@@ -1218,7 +1218,7 @@
if (dsp->cmx_delay)
if (((dsp->rx_W - dsp->rx_R) & CMX_BUFF_MASK) >=
(dsp->cmx_delay << 1)) {
- if (dsp_debug & DEBUG_DSP_CMX)
+ if (dsp_debug & DEBUG_DSP_CLOCK)
printk(KERN_DEBUG
"cmx_receive(dsp=%lx): OVERRUN (because "
"twice the delay is reached), adjusting "
@@ -1374,8 +1374,9 @@
r = (r+1) & CMX_BUFF_MASK;
}
if (r != rr) {
- printk(KERN_DEBUG "%s: buffer empty\n",
- __func__);
+ if (dsp_debug & DEBUG_DSP_CLOCK)
+ printk(KERN_DEBUG "%s: RX empty\n",
+ __func__);
memset(d, dsp_silence, (rr-r)&CMX_BUFF_MASK);
}
/* -> if echo is enabled */
@@ -1724,7 +1725,7 @@
* the delay is greater dsp_poll
*/
if (delay > dsp_poll && !dsp->cmx_delay) {
- if (dsp_debug & DEBUG_DSP_CMX)
+ if (dsp_debug & DEBUG_DSP_CLOCK)
printk(KERN_DEBUG
"%s lowest rx_delay of %d bytes for"
" dsp %s are now removed.\n",
@@ -1755,7 +1756,7 @@
* have enabled tx_dejitter
*/
if (delay > dsp_poll && dsp->tx_dejitter) {
- if (dsp_debug & DEBUG_DSP_CMX)
+ if (dsp_debug & DEBUG_DSP_CLOCK)
printk(KERN_DEBUG
"%s lowest tx_delay of %d bytes for"
" dsp %s are now removed.\n",
@@ -1821,7 +1822,8 @@
if (space < skb->len) {
/* write to the space we have left */
ww = (ww - 1) & CMX_BUFF_MASK; /* end one byte prior tx_R */
- printk(KERN_DEBUG "%s: buffer overflow\n", __func__);
+ if (dsp_debug & DEBUG_DSP_CLOCK)
+ printk(KERN_DEBUG "%s: TX overflow\n", __func__);
} else
/* write until all byte are copied */
ww = (w + skb->len) & CMX_BUFF_MASK;