bchannel.h

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** Linux Call Router                                                         **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** mISDN channel handlin for remote application                              **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12
  13 struct bchannel {
  14         struct bchannel *next;
  15         struct chan_call *call;         /* link to call process */
  16         unsigned int handle;            /* handle for stack id */
  17         int b_sock;                     /* socket for b-channel */
  18         int b_mode;                     /* dsp, raw, dsphdlc */
  19         int b_state;
  20         int b_txdata;
  21         int b_delay;
  22         int b_tx_dejitter;
  23         int b_tx_gain, b_rx_gain;
  24         char b_pipeline[256];
  25         unsigned int b_conf;
  26         int b_echo;
  27         int b_tone;
  28         int b_rxoff;
  29         // int b_txmix;
  30         int b_dtmf;
  31         int b_bf_len;
  32         unsigned char b_bf_key[128];
  33 };
  34
  35
  36 extern struct bchannel *bchannel_first;
  37 extern pid_t bchannel_pid;
  38
  39 int bchannel_initialize(void);
  40 void bchannel_deinitialize(void);
  41 void bchannel_destroy(struct bchannel *bchannel);
  42 int bchannel_create(struct bchannel *channel, int mode);
  43 void bchannel_activate(struct bchannel *channel, int activate);
  44 void bchannel_transmit(struct bchannel *channel, unsigned char *data, int len);
  45 void bchannel_join(struct bchannel *channel, unsigned short id);
  46 void bchannel_dtmf(struct bchannel *channel, int on);
  47 void bchannel_blowfish(struct bchannel *bchannel, unsigned char *key, int len);
  48 void bchannel_pipeline(struct bchannel *bchannel, char *pipeline);
  49 void bchannel_gain(struct bchannel *bchannel, int gain, int tx);
  50 int bchannel_handle(void);
  51 struct bchannel *find_bchannel_handle(unsigned int handle);
  52 //struct bchannel *find_bchannel_ref(unsigned int ref);
  53 struct bchannel *alloc_bchannel(unsigned int handle);
  54 void free_bchannel(struct bchannel *channel);
  55