diff options
Diffstat (limited to 'drivers/staging/echo/echo.h')
| -rw-r--r-- | drivers/staging/echo/echo.h | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/drivers/staging/echo/echo.h b/drivers/staging/echo/echo.h index 754e66d30c1b..32ca9dedeca4 100644 --- a/drivers/staging/echo/echo.h +++ b/drivers/staging/echo/echo.h @@ -36,7 +36,6 @@ What does it do? This module aims to provide G.168-2002 compliant echo cancellation, to remove electrical echoes (e.g. from 2-4 wire hybrids) from voice calls. - How does it work? The heart of the echo cancellor is FIR filter. This is adapted to match the @@ -128,7 +127,8 @@ a minor burden. echo canceller. */ struct oslec_state { - int16_t tx, rx; + int16_t tx; + int16_t rx; int16_t clean; int16_t clean_nlp; @@ -145,11 +145,18 @@ struct oslec_state { int16_t shift; /* Average levels and averaging filter states */ - int Ltxacc, Lrxacc, Lcleanacc, Lclean_bgacc; - int Ltx, Lrx; + int Ltxacc; + int Lrxacc; + int Lcleanacc; + int Lclean_bgacc; + int Ltx; + int Lrx; int Lclean; int Lclean_bg; - int Lbgn, Lbgn_acc, Lbgn_upper, Lbgn_upper_acc; + int Lbgn; + int Lbgn_acc; + int Lbgn_upper; + int Lbgn_upper_acc; /* foreground and background filter states */ struct fir16_state_t fir_state; @@ -157,11 +164,16 @@ struct oslec_state { int16_t *fir_taps16[2]; /* DC blocking filter states */ - int tx_1, tx_2, rx_1, rx_2; + int tx_1; + int tx_2; + int rx_1; + int rx_2; /* optional High Pass Filter states */ - int32_t xvtx[5], yvtx[5]; - int32_t xvrx[5], yvrx[5]; + int32_t xvtx[5]; + int32_t yvtx[5]; + int32_t xvrx[5]; + int32_t yvrx[5]; /* Parameters for the optional Hoth noise generator */ int cng_level; |