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 long handle;           /* handle for stack id */
  17         int b_sock;                     /* socket for b-channel */
  18         int b_state;
  19         int b_txdata;
  20         int b_delay;
  21         int b_tx_dejitter;
  22         int b_tx_gain, b_rx_gain;
  23         char b_pipeline[256];
  24         unsigned long b_conf;
  25         int b_echo;
  26         int b_tone;
  27         int b_rxoff;
  28         // int b_txmix;
  29         int b_dtmf;
  30         int b_crypt_len;
  31         int b_crypt_type;
  32         unsigned char b_crypt_key[128];
  33
  34         void (*rx_data)(struct bchannel *bchannel, unsigned char *data, int len);
  35         void (*rx_dtmf)(struct bchannel *bchannel, char tone);
  36 };
  37
  38
  39 extern struct bchannel *bchannel_first;
  40 extern pid_t bchannel_pid;
  41
  42 int bchannel_initialize(void);
  43 void bchannel_deinitialize(void);
  44 int bchannel_create(struct bchannel *channel);
  45 void bchannel_activate(struct bchannel *channel, int activate);
  46 void bchannel_transmit(struct bchannel *channel, unsigned char *data, int len);
  47 void bchannel_join(struct bchannel *channel, unsigned short id);
  48 int bchannel_handle(void);
  49 struct bchannel *find_bchannel_handle(unsigned long handle);
  50 //struct bchannel *find_bchannel_ref(unsigned long ref);
  51 struct bchannel *alloc_bchannel(unsigned long handle);
  52 void free_bchannel(struct bchannel *channel);
  53