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;         /* ink to call process */
  16         unsigned long handle;           /* handle for stack id */
  17 #ifdef SOCKET_MISDN
  18         int b_sock;                     /* socket for b-channel */
  19 #else
  20         unsigned long b_stid;           /* stack id */
  21         unsigned long b_addr;           /* channel address */
  22 #endif
  23         unsigned short bridge_id;       /* bridge id */
  24         struct bchannel *bridge_channel;
  25                                         /* remote channel */
  26         int b_state;
  27         int b_txdata;
  28         int b_delay;
  29         int b_tx_dejitter;
  30         int b_tx_gain, b_rx_gain;
  31         char b_pipeline[256];
  32         unsigned long b_conf;
  33         int b_echo;
  34         int b_tone;
  35         int b_rxoff;
  36         // int b_txmix;
  37         int b_dtmf;
  38         int b_crypt_len;
  39         int b_crypt_type;
  40         unsigned char b_crypt_key[128];
  41
  42         void (*rx_data)(struct bchannel *bchannel, unsigned char *data, int len);
  43         void (*rx_dtmf)(struct bchannel *bchannel, char tone);
  44 };
  45
  46
  47 extern struct bchannel *bchannel_first;
  48
  49 int bchannel_initialize(void);
  50 void bchannel_deinitialize(void);
  51 int bchannel_create(struct bchannel *channel);
  52 void bchannel_activate(struct bchannel *channel, int activate);
  53 void bchannel_transmit(struct bchannel *channel, unsigned char *data, int len);
  54 void bchannel_join(struct bchannel *channel, unsigned short id);
  55 int bchannel_handle(void);
  56 struct bchannel *find_bchannel_handle(unsigned long handle);
  57 struct bchannel *find_bchannel_ref(unsigned long ref);
  58 struct bchannel *alloc_bchannel(unsigned long handle);
  59 void free_bchannel(struct bchannel *channel);
  60