mISDN: Add different different timer settings for hfc-pci
- Poll-timer can now be set from 8 to 256 samples, depending on your kernel.
- If default or 128 is used, the normal controller's clock is used as before.
Usage: modprobe hfcpci poll=XXX
- Added some debug code for dsp buffer size. (CMX_DELAY_DEBUG)
Signed-off-by: Andreas Eversberg <andreas@eversberg.eu>
Signed-off-by: Karsten Keil <kkeil@suse.de>
diff --git a/drivers/isdn/mISDN/dsp_cmx.c b/drivers/isdn/mISDN/dsp_cmx.c
index efe4c74..02f6434 100644
--- a/drivers/isdn/mISDN/dsp_cmx.c
+++ b/drivers/isdn/mISDN/dsp_cmx.c
@@ -137,6 +137,7 @@
/* #define CMX_CONF_DEBUG */
/*#define CMX_DEBUG * massive read/write pointer output */
+/*#define CMX_DELAY_DEBUG * gives rx-buffer delay overview */
/*#define CMX_TX_DEBUG * massive read/write on tx-buffer with content */
static inline int
@@ -1135,6 +1136,25 @@
return 0;
}
+#ifdef CMX_DELAY_DEBUG
+int delaycount;
+static void
+showdelay(struct dsp *dsp, int samples, int delay)
+{
+ char bar[] = "--------------------------------------------------|";
+ int sdelay;
+
+ delaycount += samples;
+ if (delaycount < 8000)
+ return;
+ delaycount = 0;
+
+ sdelay = delay * 50 / (dsp_poll << 2);
+
+ printk(KERN_DEBUG "DELAY (%s) %3d >%s\n", dsp->name, delay,
+ sdelay > 50 ? "..." : bar + 50 - sdelay);
+}
+#endif
/*
* audio data is received from card
@@ -1256,6 +1276,9 @@
/* increase write-pointer */
dsp->rx_W = ((dsp->rx_W+len) & CMX_BUFF_MASK);
+#ifdef CMX_DELAY_DEBUG
+ showdelay(dsp, len, (dsp->rx_W-dsp->rx_R) & CMX_BUFF_MASK);
+#endif
}