xref: /linux/include/linux/mISDNdsp.h (revision 498495dba268b20e8eadd7fe93c140c68b6cc9d2)
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