/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __mISDNdsp_H__ #define __mISDNdsp_H__ struct mISDN_dsp_element_arg { char *name; char *def; char *desc; }; struct mISDN_dsp_element { char *name; void *(*new)(const char *arg); void (*free)(void *p); void (*process_tx)(void *p, unsigned char *data, int len); void (*process_rx)(void *p, unsigned char *data, int len, unsigned int txlen); int num_args; struct mISDN_dsp_element_arg *args; }; extern int mISDN_dsp_element_register(struct mISDN_dsp_element *elem); extern void mISDN_dsp_element_unregister(struct mISDN_dsp_element *elem); struct dsp_features { int hfc_id; /* unique id to identify the chip (or -1) */ int hfc_dtmf; /* set if HFCmulti card supports dtmf */ int hfc_conf; /* set if HFCmulti card supports conferences */ int hfc_loops; /* set if card supports tone loops */ int hfc_echocanhw; /* set if card supports echocancelation*/ int pcm_id; /* unique id to identify the pcm bus (or -1) */ int pcm_slots; /* number of slots on the pcm bus */ int pcm_banks; /* number of IO banks of pcm bus */ int unclocked; /* data is not clocked (has jitter/loss) */ int unordered; /* data is unordered (packets have index) */ }; #endif