diff options
Diffstat (limited to 'drivers/isdn/mISDN/dsp.h')
| -rw-r--r-- | drivers/isdn/mISDN/dsp.h | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/isdn/mISDN/dsp.h b/drivers/isdn/mISDN/dsp.h index 98a33c58f09..18af86879c0 100644 --- a/drivers/isdn/mISDN/dsp.h +++ b/drivers/isdn/mISDN/dsp.h @@ -112,9 +112,11 @@ struct dsp_conf { #define DSP_DTMF_NPOINTS 102 -#define ECHOCAN_BUFLEN (4*128) +#define ECHOCAN_BUFF_SIZE 0x400 /* must be 2**n */ +#define ECHOCAN_BUFF_MASK 0x3ff /* -1 */ struct dsp_dtmf { + int enable; /* dtmf is enabled */ int treshold; /* above this is dtmf (square of) */ int software; /* dtmf uses software decoding */ int hardware; /* dtmf uses hardware decoding */ @@ -123,7 +125,7 @@ struct dsp_dtmf { /* buffers one full dtmf frame */ u8 lastwhat, lastdigit; int count; - u8 digits[16]; /* just the dtmf result */ + u8 digits[16]; /* dtmf result */ }; @@ -150,6 +152,15 @@ struct dsp_tone { struct timer_list tl; }; +/*************** + * echo stuff * + ***************/ + +struct dsp_echo { + int software; /* echo is generated by software */ + int hardware; /* echo is generated by hardware */ +}; + /***************** * general stuff * *****************/ @@ -160,7 +171,7 @@ struct dsp { struct mISDNchannel *up; unsigned char name[64]; int b_active; - int echo; /* echo is enabled */ + struct dsp_echo echo; int rx_disabled; /* what the user wants */ int rx_is_off; /* what the card is */ int tx_mix; @@ -261,5 +272,5 @@ extern int dsp_pipeline_build(struct dsp_pipeline *pipeline, const char *cfg); extern void dsp_pipeline_process_tx(struct dsp_pipeline *pipeline, u8 *data, int len); extern void dsp_pipeline_process_rx(struct dsp_pipeline *pipeline, u8 *data, - int len); + int len, unsigned int txlen); |