port.h

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** PBX4Linux                                                                 **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** port header file                                                          **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #ifndef PORT_HEADER
  13 #define PORT_HEADER
  14
  15 /* type of port */
  16 #define PORT_TYPE_NULL          0x0000
  17 #define PORT_CLASS_mISDN        0x0100
  18 #define PORT_CLASS_MASK         0xff00
  19 #define PORT_CLASS_mISDN_DSS1   0x0110
  20 #define PORT_CLASS_mISDN_MASK   0xfff0
  21         /* nt-mode */
  22 #define PORT_TYPE_DSS1_NT_IN    0x0111
  23 #define PORT_TYPE_DSS1_NT_OUT   0x0112
  24         /* te-mode */
  25 #define PORT_TYPE_DSS1_TE_IN    0x0113
  26 #define PORT_TYPE_DSS1_TE_OUT   0x0114
  27         /* answering machine */
  28 #define PORT_TYPE_VBOX_OUT      0x0311
  29
  30
  31 enum { /* states of call */
  32         PORT_STATE_IDLE,        /* no call */
  33         PORT_STATE_IN_SETUP,    /* incoming connection */
  34         PORT_STATE_OUT_SETUP,   /* outgoing connection */
  35         PORT_STATE_IN_OVERLAP,  /* more informatiopn needed */
  36         PORT_STATE_OUT_OVERLAP, /* more informatiopn needed */
  37         PORT_STATE_IN_PROCEEDING,/* call is proceeding */
  38         PORT_STATE_OUT_PROCEEDING,/* call is proceeding */
  39         PORT_STATE_IN_ALERTING, /* call is ringing */
  40         PORT_STATE_OUT_ALERTING,/* call is ringing */
  41         PORT_STATE_CONNECT_WAITING,/* connect is sent to the network, waiting for acknowledge */
  42         PORT_STATE_CONNECT,     /* call is connected and transmission is enabled */
  43         PORT_STATE_IN_DISCONNECT,/* incoming disconnected */
  44         PORT_STATE_OUT_DISCONNECT,/* outgoing disconnected */
  45         PORT_STATE_RELEASE,     /* call released */
  46 };
  47
  48 #define PORT_STATE_NAMES \
  49 static char *state_name[] = { \
  50         "PORT_STATE_IDLE", \
  51         "PORT_STATE_IN_SETUP", \
  52         "PORT_STATE_OUT_SETUP", \
  53         "PORT_STATE_IN_OVERLAP", \
  54         "PORT_STATE_OUT_OVERLAP", \
  55         "PORT_STATE_IN_PROCEEDING", \
  56         "PORT_STATE_OUT_PROCEEDING", \
  57         "PORT_STATE_IN_ALERTING", \
  58         "PORT_STATE_OUT_ALERTING", \
  59         "PORT_STATE_CONNECT_WAITING", \
  60         "PORT_STATE_CONNECT", \
  61         "PORT_STATE_IN_DISCONNECT", \
  62         "PORT_STATE_OUT_DISCONNECT", \
  63         "PORT_STATE_RELEASE", \
  64 };
  65
  66
  67 enum { /* event list from listening to tty */
  68         TTYI_EVENT_nodata,      /* no data was received nor processed */
  69         TTYI_EVENT_NONE,        /* nothing happens */
  70         TTYI_EVENT_CONNECT,     /* a connection is made */
  71         TTYI_EVENT_RING,        /* incoming call */
  72         TTYI_EVENT_CALLER,      /* caller id information */
  73         TTYI_EVENT_INFO,        /* dialing information */
  74         TTYI_EVENT_OVERLAP,     /* setup complete, awaiting more dialing info */
  75         TTYI_EVENT_PROC,        /* proceeding */
  76         TTYI_EVENT_ALRT,        /* alerting */
  77         TTYI_EVENT_CONN,        /* connect */
  78         TTYI_EVENT_DISC,        /* disconnect */
  79         TTYI_EVENT_RELE,        /* release signal */
  80         TTYI_EVENT_BUSY,        /* channel unavailable */
  81 };
  82
  83 #define RECORD_BUFFER_LENGTH    1024 // must be a binary border & must be greater 256, because 256 will be written if buffer overflows
  84 #define RECORD_BUFFER_MASK      1023
  85
  86 /* structure of epoint_list */
  87 struct epoint_list {
  88         struct epoint_list      *next;
  89         unsigned int            epoint_id;
  90         int                     active;
  91 };
  92
  93 inline unsigned int ACTIVE_EPOINT(struct epoint_list *epointlist)
  94 {
  95         while(epointlist)
  96         {
  97                 if (epointlist->active)
  98                         return(epointlist->epoint_id);
  99                 epointlist = epointlist->next;
 100         }
 101         return(0);
 102 }
 103
 104 inline unsigned int INACTIVE_EPOINT(struct epoint_list *epointlist)
 105 {
 106         while(epointlist)
 107         {
 108                 if (!epointlist->active)
 109                         return(epointlist->epoint_id);
 110                 epointlist = epointlist->next;
 111         }
 112         return(0);
 113 }
 114
 115
 116 /* structure of port settings */
 117 struct port_settings {
 118         char tones_dir[256];                    /* directory of current tone */
 119         int no_seconds;
 120 };
 121
 122 /* generic port class */
 123 class Port
 124 {
 125         public:
 126         /* methods */
 127         Port(int type, char *portname, struct port_settings *settings);
 128         virtual ~Port();
 129         class Port *next;                       /* next port in list */
 130         int p_type;                             /* type of port */
 131         virtual int handler(void);
 132         virtual int message_epoint(unsigned int epoint_id, int message, union parameter *param);
 133         virtual void set_echotest(int echotest);
 134         virtual void set_tone(char *dir, char *name);
 135         virtual int read_audio(unsigned char *buffer, int length);
 136
 137         struct port_settings p_settings;
 138
 139         /* tone */
 140         char p_tone_dir[256];                   /* name of current directory */
 141         char p_tone_name[256];                  /* name of current tone */
 142         char p_tone_fh;                         /* file descriptor of current tone or -1 if not open */
 143         void *p_tone_fetched;                   /* pointer to fetched data */
 144         int p_tone_codec;                       /* codec that the tone is made of */
 145         signed int p_tone_size, p_tone_left;    /* size of tone in bytes (not samples), bytes left */
 146         signed int p_tone_eof;                  /* flag that makes the use of eof message */
 147         signed int p_tone_counter;              /* flag that makes the use of counter message */
 148         signed int p_tone_speed;                /* speed of current tone, 1=normal, may also be negative */
 149 //      char p_knock_fh;                        /* file descriptor of knocking tone or -1 if not open */
 150 //      void *p_knock_fetched;                  /* pointer to fetched data */
 151 //      int p_knock_codec;
 152 //      signed int p_knock_size, p_knock_left;
 153         void set_vbox_tone(char *dir, char *name);/* tone of answering machine */
 154         void set_vbox_play(char *name, int offset); /* sample of answ. */
 155         void set_vbox_speed(int speed); /* speed of answ. */
 156
 157         /* identification */
 158         unsigned int p_serial;                  /* serial unique id of port */
 159         char p_name[128];                       /* name of port or token (h323) */
 160
 161         /* endpoint relation */
 162         struct epoint_list *p_epointlist;       /* endpoint relation */
 163
 164         /* state */
 165         int p_state;                            /* state of port */
 166         void new_state(int state);              /* set new state */
 167         struct caller_info p_callerinfo;        /* information about the caller */
 168         struct dialing_info p_dialinginfo;      /* information about dialing */
 169         struct connect_info p_connectinfo;      /* information about connected line */
 170         struct redir_info p_redirinfo;          /* info on redirection (to the calling user) */
 171         struct capa_info p_capainfo;    /* info on l2,l3 capacity */
 172         int p_echotest;                         /* set to echo audio data FROM port back to port's mixer */
 173
 174         /* recording */
 175         int open_record(int type, int mode, int skip, char *terminal, int anon_ignore, char *vbox_email, int vbox_email_file);
 176         void close_record(int beep, int mute);
 177         void record(unsigned char *data, int length, int dir_fromup);
 178         FILE *p_record;                         /* recording fp: if not NULL, recording is enabled */
 179         int p_record_type;                      /* codec to use: RECORD_MONO, RECORD_STEREO, ... */
 180         int p_record_skip;                      /* skip bytes before writing the sample */
 181         unsigned int p_record_length;           /* size of what's written so far */
 182
 183         signed short p_record_buffer[RECORD_BUFFER_LENGTH];
 184         unsigned int p_record_buffer_readp;
 185         unsigned int p_record_buffer_writep;
 186         int p_record_buffer_dir;                /* current direction in buffer */
 187
 188         char p_record_filename[256];            /* record filename */
 189         int p_record_vbox;                      /* 0= normal recording, 1= announcement, 2= record to vbox dir */
 190         int p_record_vbox_year;                 /* time when vbox recording started */
 191         int p_record_vbox_mon;
 192         int p_record_vbox_mday;
 193         int p_record_vbox_hour;
 194         int p_record_vbox_min;
 195         char p_record_extension[32];            /* current name (digits) of extension */
 196         int p_record_anon_ignore;
 197         char p_record_vbox_email[128];
 198         int p_record_vbox_email_file;
 199
 200         void free_epointlist(struct epoint_list *epointlist);
 201         void free_epointid(unsigned int epoint_id);
 202         struct epoint_list *epointlist_new(unsigned int epoint_id);
 203 };
 204
 205
 206 extern Port *port_first;
 207 extern unsigned int port_serial;
 208
 209 class Port *find_port_with_token(char *name);
 210 class Port *find_port_id(unsigned int port_id);
 211
 212
 213 #endif // PORT_HEADER
 214
 215