include/linux/mISDNdsp.h

   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