1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __mISDNdsp_H__ 3 #define __mISDNdsp_H__ 4 5 struct mISDN_dsp_element_arg { 6 char *name; 7 char *def; 8 char *desc; 9 }; 10 11 struct mISDN_dsp_element { 12 char *name; 13 void *(*new)(const char *arg); 14 void (*free)(void *p); 15 void (*process_tx)(void *p, unsigned char *data, int len); 16 void (*process_rx)(void *p, unsigned char *data, int len, 17 unsigned int txlen); 18 int num_args; 19 struct mISDN_dsp_element_arg 20 *args; 21 }; 22 23 extern int mISDN_dsp_element_register(struct mISDN_dsp_element *elem); 24 extern void mISDN_dsp_element_unregister(struct mISDN_dsp_element *elem); 25 26 struct dsp_features { 27 int hfc_id; /* unique id to identify the chip (or -1) */ 28 int hfc_dtmf; /* set if HFCmulti card supports dtmf */ 29 int hfc_conf; /* set if HFCmulti card supports conferences */ 30 int hfc_loops; /* set if card supports tone loops */ 31 int hfc_echocanhw; /* set if card supports echocancelation*/ 32 int pcm_id; /* unique id to identify the pcm bus (or -1) */ 33 int pcm_slots; /* number of slots on the pcm bus */ 34 int pcm_banks; /* number of IO banks of pcm bus */ 35 int unclocked; /* data is not clocked (has jitter/loss) */ 36 int unordered; /* data is unordered (packets have index) */ 37 }; 38 39 #endif 40 41