diff options
Diffstat (limited to 'drivers/isdn/mISDN/dsp_ecdis.h')
| -rw-r--r-- | drivers/isdn/mISDN/dsp_ecdis.h | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/isdn/mISDN/dsp_ecdis.h b/drivers/isdn/mISDN/dsp_ecdis.h index 21dbd153ee2..fed99ac7f6a 100644 --- a/drivers/isdn/mISDN/dsp_ecdis.h +++ b/drivers/isdn/mISDN/dsp_ecdis.h @@ -46,15 +46,15 @@ struct ec_disable_detector_state { static inline void echo_can_disable_detector_init(struct ec_disable_detector_state *det) { - /* Elliptic notch */ - /* This is actually centred at 2095Hz, but gets the balance we want, due - to the asymmetric walls of the notch */ + /* Elliptic notch */ + /* This is actually centred at 2095Hz, but gets the balance we want, due + to the asymmetric walls of the notch */ biquad2_init(&det->notch, - (int32_t) (-0.7600000*32768.0), - (int32_t) (-0.1183852*32768.0), - (int32_t) (-0.5104039*32768.0), - (int32_t) (0.1567596*32768.0), - (int32_t) (1.0000000*32768.0)); + (int32_t)(-0.7600000 * 32768.0), + (int32_t)(-0.1183852 * 32768.0), + (int32_t)(-0.5104039 * 32768.0), + (int32_t)(0.1567596 * 32768.0), + (int32_t)(1.0000000 * 32768.0)); det->channel_level = 0; det->notch_level = 0; @@ -67,7 +67,7 @@ echo_can_disable_detector_init(struct ec_disable_detector_state *det) static inline int echo_can_disable_detector_update(struct ec_disable_detector_state *det, -int16_t amp) + int16_t amp) { int16_t notched; @@ -82,13 +82,13 @@ int16_t amp) det->notch_level += ((abs(notched) - det->notch_level) >> 4); if (det->channel_level > 280) { /* There is adequate energy in the channel. - Is it mostly at 2100Hz? */ - if (det->notch_level*6 < det->channel_level) { + Is it mostly at 2100Hz? */ + if (det->notch_level * 6 < det->channel_level) { /* The notch says yes, so we have the tone. */ if (!det->tone_present) { /* Do we get a kick every 450+-25ms? */ - if (det->tone_cycle_duration >= 425*8 - && det->tone_cycle_duration <= 475*8) { + if (det->tone_cycle_duration >= 425 * 8 + && det->tone_cycle_duration <= 475 * 8) { det->good_cycles++; if (det->good_cycles > 2) det->hit = TRUE; |