diff options
Diffstat (limited to 'drivers/dahdi/xpp/xbus-pcm.c')
| -rw-r--r-- | drivers/dahdi/xpp/xbus-pcm.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/dahdi/xpp/xbus-pcm.c b/drivers/dahdi/xpp/xbus-pcm.c index 448cf5a..a93de5e 100644 --- a/drivers/dahdi/xpp/xbus-pcm.c +++ b/drivers/dahdi/xpp/xbus-pcm.c @@ -935,6 +935,32 @@ out: spin_unlock_irqrestore(&xpd->lock, flags); } +int generic_echocancel_timeslot(xpd_t *xpd, int pos) +{ + return xpd->addr.unit * 32 + pos; +} +EXPORT_SYMBOL(generic_echocancel_timeslot); + +int generic_echocancel_setmask(xpd_t *xpd, xpp_line_t ec_mask) +{ + int i; + + BUG_ON(!xpd); + XPD_DBG(GENERAL, xpd, "0x%8X\n", ec_mask); + if (!ECHOOPS(xpd->xbus)) { + XPD_DBG(GENERAL, xpd, + "No echo canceller in XBUS: Doing nothing.\n"); + return -EINVAL; + } + for (i = 0; i < PHONEDEV(xpd).channels; i++) { + int on = BIT(i) & ec_mask; + CALL_EC_METHOD(ec_set, xpd->xbus, xpd, i, on); + } + CALL_EC_METHOD(ec_update, xpd->xbus, xpd->xbus); + return 0; +} +EXPORT_SYMBOL(generic_echocancel_setmask); + static int copy_pcm_tospan(xbus_t *xbus, xframe_t *xframe) { byte *xframe_end; |