mISDNdsp.h

Go to the documentation of this file.

#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