static void xbus_tick(xbus_t *xbus)
{
int i;
xpd_t *xpd;
xframe_t *xframe = NULL;
xpacket_t *pack = NULL;
size_t pcm_len;
bool sent_sync_bit = 0;
/*
* Update zaptel
*/
for(i = 0; i < MAX_XPDS; i++) {
xpd = xpd_of(xbus, i);
if(xpd && SPAN_REGISTERED(xpd)) {
#ifdef OPTIMIZE_CHANMUTE
int j;
xpp_line_t xmit_mask = xpd->wanted_pcm_mask;
xmit_mask |= xpd->silence_pcm;
xmit_mask |= xpd->digital_signalling;
for_each_line(xpd, j) {
xpd->chans[j].chanmute = (optimize_chanmute)
? !IS_SET(xmit_mask, j)
: 0;
}
#endif
/*
* calls to zt_transmit should be out of spinlocks, as it may call back
* our hook setting methods.
*/
zt_transmit(&xpd->span);
}
}
static void torisa_tasklet(unsigned long data)
{
int x,y;
u_char mychunk[2][ZT_CHUNKSIZE];
taskletrun++;
if (taskletpending) {
taskletexec++;
/* Perform receive data calculations. Reverse to run most
likely master last */
if (spans[1].flags & ZT_FLAG_RUNNING) {
/* Perform echo cancellation */
for (x=0;x<channels_per_span;x++)
{
for(y = 0; y < ZT_CHUNKSIZE; y++)
{
mychunk[1][y] = last_ecwrite[1][x];
last_ecwrite[1][x] =
writedata[1-curread][x + channels_per_span][y];
}
zt_ec_chunk(&spans[1].chans[x],
spans[1].chans[x].readchunk,mychunk[1]);
}
zt_receive(&spans[1]);
}
if (spans[0].flags & ZT_FLAG_RUNNING) {
/* Perform echo cancellation */
for (x=0;x<channels_per_span;x++)
{
for(y = 0; y < ZT_CHUNKSIZE; y++)
{
mychunk[0][y] = last_ecwrite[0][x];
last_ecwrite[0][x] = writedata[1-curread][x][y];
}
zt_ec_chunk(&spans[0].chans[x],
spans[0].chans[x].readchunk,mychunk[0]);
}
zt_receive(&spans[0]);
}
/* Prepare next set for transmission */
if (spans[1].flags & ZT_FLAG_RUNNING)
zt_transmit(&spans[1]);
if (spans[0].flags & ZT_FLAG_RUNNING)
zt_transmit(&spans[0]);
}
taskletpending = 0;
}
static void ztdummy_timer(void *arg)
{
struct ztdummy_state *ztd;
ztd = ddi_get_soft_state(ztdummy_statep, 0);
zt_receive(&ztd->span);
zt_transmit(&ztd->span);
}