1 #ifndef __mISDNdsp_H__ 2 #define __mISDNdsp_H__ 3 4 struct mISDN_dsp_element_arg { 5 char *name; 6 char *def; 7 char *desc; 8 }; 9 10 struct mISDN_dsp_element { 11 char *name; 12 void *(*new)(const char *arg); 13 void (*free)(void *p); 14 void (*process_tx)(void *p, unsigned char *data, int len); 15 void (*process_rx)(void *p, unsigned char *data, int len); 16 int num_args; 17 struct mISDN_dsp_element_arg 18 *args; 19 }; 20 21 extern int mISDN_dsp_element_register(struct mISDN_dsp_element *elem); 22 extern void mISDN_dsp_element_unregister(struct mISDN_dsp_element *elem); 23 24 struct dsp_features { 25 int hfc_id; /* unique id to identify the chip (or -1) */ 26 int hfc_dtmf; /* set if HFCmulti card supports dtmf */ 27 int hfc_loops; /* set if card supports tone loops */ 28 int hfc_echocanhw; /* set if card supports echocancelation*/ 29 int pcm_id; /* unique id to identify the pcm bus (or -1) */ 30 int pcm_slots; /* number of slots on the pcm bus */ 31 int pcm_banks; /* number of IO banks of pcm bus */ 32 int unclocked; /* data is not clocked (has jitter/loss) */ 33 int unordered; /* data is unordered (packets have index) */ 34 }; 35 36 #endif 37 38