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Commit 190f71d9 authored by Andreas Eversberg's avatar Andreas Eversberg Committed by Karsten Keil
Browse files

mISDN: Add some debug option for clock problems 



Add a new debug bit for clock problems.

Signed-off-by: default avatarAndreas Eversberg <andreas@eversberg.eu>
Signed-off-by: default avatarKarsten Keil <kkeil@suse.de>
parent 8dd2f36f

drivers/isdn/mISDN/dsp.h

+1 −0
Original line number Diff line number Diff line
@@ -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:

drivers/isdn/mISDN/dsp_cmx.c

+9 −7
Original line number Diff line number Diff line
@@ -1192,7 +1192,7 @@ dsp_cmx_receive(struct dsp *dsp, struct sk_buff *skb) 
	 * 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 @@ dsp_cmx_receive(struct dsp *dsp, struct sk_buff *skb) 
	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 "
@@ -1374,7 +1374,8 @@ dsp_cmx_send_member(struct dsp *dsp, int len, s32 *c, int members) 
				r = (r+1) & CMX_BUFF_MASK;

			}

			if (r != rr) {

				printk(KERN_DEBUG "%s: buffer empty\n",

				if (dsp_debug & DEBUG_DSP_CLOCK)

					printk(KERN_DEBUG "%s: RX empty\n",

						__func__);

				memset(d, dsp_silence, (rr-r)&CMX_BUFF_MASK);

			}
@@ -1724,7 +1725,7 @@ dsp_cmx_send(void *arg) 
			 * 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 @@ dsp_cmx_send(void *arg) 
			 * 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 @@ dsp_cmx_transmit(struct dsp *dsp, struct sk_buff *skb) 
	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;