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        0x1000
  18 #define PORT_CLASS_DSS1         0x1100
  19 #define PORT_CLASS_DSS1_NT      0x1110
  20 #define PORT_CLASS_DSS1_TE      0x1120
  21 #define PORT_CLASS_SS5          0x1300
  22 #define PORT_CLASS_SIP          0x2000
  23 #define PORT_CLASS_GSM          0x3000
  24 #define PORT_CLASS_GSM_BS       0x3100
  25 #define PORT_CLASS_GSM_MS       0x3200
  26 #define PORT_CLASS_REMOTE       0x4000
  27 #define PORT_CLASS_MASK         0xf000
  28 #define PORT_CLASS_mISDN_MASK   0xff00
  29 #define PORT_CLASS_DSS1_MASK    0xfff0
  30 #define PORT_CLASS_GSM_MASK     0xff00
  31 #define PORT_CLASS_DIR_MASK     0x000f
  32 #define PORT_CLASS_DIR_IN       0x0001
  33 #define PORT_CLASS_DIR_OUT      0x0002
  34         /* nt-mode */
  35 #define PORT_TYPE_DSS1_NT_IN    0x1111
  36 #define PORT_TYPE_DSS1_NT_OUT   0x1112
  37         /* te-mode */
  38 #define PORT_TYPE_DSS1_TE_IN    0x1121
  39 #define PORT_TYPE_DSS1_TE_OUT   0x1122
  40         /* gsm */
  41 #define PORT_TYPE_GSM_BS_IN     0x3101
  42 #define PORT_TYPE_GSM_BS_OUT    0x3102
  43 #define PORT_TYPE_GSM_MS_IN     0x3201
  44 #define PORT_TYPE_GSM_MS_OUT    0x3202
  45         /* ss5 */
  46 #define PORT_TYPE_SS5_IN        0x1311
  47 #define PORT_TYPE_SS5_OUT       0x1312
  48 #define PORT_TYPE_SS5_IDLE      0x1313
  49         /* remote */
  50 #define PORT_TYPE_REMOTE_IN     0x4001
  51 #define PORT_TYPE_REMOTE_OUT    0x4002
  52         /* SIP */
  53 #define PORT_TYPE_SIP_IN        0x2001
  54 #define PORT_TYPE_SIP_OUT       0x2002
  55         /* answering machine */
  56 #define PORT_TYPE_VBOX_OUT      0xf111
  57
  58
  59 enum { /* states of call */
  60         PORT_STATE_IDLE,        /* no call */
  61         PORT_STATE_IN_SETUP,    /* incoming connection */
  62         PORT_STATE_OUT_SETUP,   /* outgoing connection */
  63         PORT_STATE_IN_OVERLAP,  /* more informatiopn needed */
  64         PORT_STATE_OUT_OVERLAP, /* more informatiopn needed */
  65         PORT_STATE_IN_PROCEEDING,/* call is proceeding */
  66         PORT_STATE_OUT_PROCEEDING,/* call is proceeding */
  67         PORT_STATE_IN_ALERTING, /* call is ringing */
  68         PORT_STATE_OUT_ALERTING,/* call is ringing */
  69         PORT_STATE_CONNECT_WAITING,/* connect is sent to the network, waiting for acknowledge */
  70         PORT_STATE_CONNECT,     /* call is connected and transmission is enabled */
  71         PORT_STATE_IN_DISCONNECT,/* incoming disconnected */
  72         PORT_STATE_OUT_DISCONNECT,/* outgoing disconnected */
  73         PORT_STATE_RELEASE,     /* call released */
  74 };
  75
  76 #define PORT_STATE_NAMES \
  77 static const char *state_name[] = { \
  78         "PORT_STATE_IDLE", \
  79         "PORT_STATE_IN_SETUP", \
  80         "PORT_STATE_OUT_SETUP", \
  81         "PORT_STATE_IN_OVERLAP", \
  82         "PORT_STATE_OUT_OVERLAP", \
  83         "PORT_STATE_IN_PROCEEDING", \
  84         "PORT_STATE_OUT_PROCEEDING", \
  85         "PORT_STATE_IN_ALERTING", \
  86         "PORT_STATE_OUT_ALERTING", \
  87         "PORT_STATE_CONNECT_WAITING", \
  88         "PORT_STATE_CONNECT", \
  89         "PORT_STATE_IN_DISCONNECT", \
  90         "PORT_STATE_OUT_DISCONNECT", \
  91         "PORT_STATE_RELEASE", \
  92 };
  93
  94
  95 enum { /* event list from listening to tty */
  96         TTYI_EVENT_nodata,      /* no data was received nor processed */
  97         TTYI_EVENT_NONE,        /* nothing happens */
  98         TTYI_EVENT_CONNECT,     /* a connection is made */
  99         TTYI_EVENT_RING,        /* incoming call */
 100         TTYI_EVENT_CALLER,      /* caller id information */
 101         TTYI_EVENT_INFO,        /* dialing information */
 102         TTYI_EVENT_OVERLAP,     /* setup complete, awaiting more dialing info */
 103         TTYI_EVENT_PROC,        /* proceeding */
 104         TTYI_EVENT_ALRT,        /* alerting */
 105         TTYI_EVENT_CONN,        /* connect */
 106         TTYI_EVENT_DISC,        /* disconnect */
 107         TTYI_EVENT_RELE,        /* release signal */
 108         TTYI_EVENT_BUSY,        /* channel unavailable */
 109 };
 110
 111 #define RECORD_BUFFER_LENGTH    1024 // must be a binary border & must be greater 256, because 256 will be written if buffer overflows
 112 #define RECORD_BUFFER_MASK      1023
 113
 114 #define PORT_TRANSMIT           256 // how much to transmit via bridge, if it is not defined by received data length
 115
 116 /* structure of epoint_list */
 117 struct epoint_list {
 118         struct epoint_list      *next;
 119         unsigned int            epoint_id;
 120         int                     active;
 121 };
 122
 123 inline unsigned int ACTIVE_EPOINT(struct epoint_list *epointlist)
 124 {
 125         while(epointlist)
 126         {
 127                 if (epointlist->active)
 128                         return(epointlist->epoint_id);
 129                 epointlist = epointlist->next;
 130         }
 131         return(0);
 132 }
 133
 134 inline unsigned int INACTIVE_EPOINT(struct epoint_list *epointlist)
 135 {
 136         while(epointlist)
 137         {
 138                 if (!epointlist->active)
 139                         return(epointlist->epoint_id);
 140                 epointlist = epointlist->next;
 141         }
 142         return(0);
 143 }
 144
 145
 146 /* structure of port settings */
 147 struct port_settings {
 148         char tones_dir[256];                    /* directory of current tone */
 149         int no_seconds;
 150 };
 151
 152 #define BRIDGE_BUFFER 4096
 153
 154 struct port_bridge_member {
 155         struct port_bridge_member *next;
 156         class Port *port;
 157         unsigned char buffer[BRIDGE_BUFFER];
 158         int write_p;                            /* points to write position in buffer */
 159         int min_space;                          /* minimum space to calculate how much delay can be removed */
 160 };
 161
 162 /* port bridge instance */
 163 struct port_bridge {
 164         struct port_bridge *next;               /* next bridge node */
 165         unsigned int bridge_id;                 /* unique ID to identify bridge */
 166         struct port_bridge_member *first;       /* list of ports that are bridged */
 167         signed long sum_buffer[BRIDGE_BUFFER];
 168         int read_p;                             /* points to read position in buffer */
 169         struct lcr_timer timer;                 /* clock to transmit sum data */
 170         int sample_count;                       /* counter of samples since last delay check */
 171 };
 172
 173 extern struct port_bridge *p_bridge_first;
 174
 175 /* generic port class */
 176 class Port
 177 {
 178         public:
 179         /* methods */
 180         Port(int type, const char *portname, struct port_settings *settings, struct interface *interface);
 181         virtual ~Port();
 182         class Port *next;                       /* next port in list */
 183         int p_type;                             /* type of port */
 184         virtual int message_epoint(unsigned int epoint_id, int message, union parameter *param);
 185         virtual void set_echotest(int echotest);
 186         virtual void set_tone(const char *dir, const char *name);
 187         virtual int read_audio(unsigned char *buffer, int length);
 188         virtual void update_load(void);
 189
 190         struct port_settings p_settings;
 191         char p_interface_name[64];
 192
 193         /* tone */
 194         char p_tone_dir[256];                   /* name of current directory */
 195         char p_tone_name[256];                  /* name of current tone */
 196         char p_tone_fh;                         /* file descriptor of current tone or -1 if not open */
 197         void *p_tone_fetched;                   /* pointer to fetched data */
 198         int p_tone_codec;                       /* codec that the tone is made of */
 199         signed int p_tone_size, p_tone_left;    /* size of tone in bytes (not samples), bytes left */
 200         signed int p_tone_eof;                  /* flag that makes the use of eof message */
 201         signed int p_tone_counter;              /* flag that makes the use of counter message */
 202         signed int p_tone_speed;                /* speed of current tone, 1=normal, may also be negative */
 203 //      char p_knock_fh;                        /* file descriptor of knocking tone or -1 if not open */
 204 //      void *p_knock_fetched;                  /* pointer to fetched data */
 205 //      int p_knock_codec;
 206 //      signed int p_knock_size, p_knock_left;
 207         void set_vbox_tone(const char *dir, const char *name);/* tone of answering machine */
 208         void set_vbox_play(const char *name, int offset); /* sample of answ. */
 209         void set_vbox_speed(int speed); /* speed of answ. */
 210
 211         /* identification */
 212         unsigned int p_serial;                  /* serial unique id of port */
 213         char p_name[128];                       /* name of port or token (h323) */
 214
 215         /* endpoint relation */
 216         struct epoint_list *p_epointlist;       /* endpoint relation */
 217
 218         /* audio bridging */
 219         struct port_bridge *p_bridge;           /* linked to a port bridge or NULL */
 220         void bridge(unsigned int bridge_id);    /* join a bridge */
 221         int bridge_tx(unsigned char *data, int len); /* used to transmit data to remote port */
 222         virtual int bridge_rx(unsigned char *data, int len); /* function to be inherited, so data is received */
 223
 224         /* state */
 225         int p_state;                            /* state of port */
 226         void new_state(int state);              /* set new state */
 227         struct caller_info p_callerinfo;        /* information about the caller */
 228         struct dialing_info p_dialinginfo;      /* information about dialing */
 229         struct connect_info p_connectinfo;      /* information about connected line */
 230         struct redir_info p_redirinfo;          /* info on redirection (to the calling user) */
 231         struct capa_info p_capainfo;    /* info on l2,l3 capacity */
 232         int p_echotest;                         /* set to echo audio data FROM port back to port's mixer */
 233
 234         /* recording */
 235         int open_record(int type, int mode, int skip, char *terminal, int anon_ignore, const char *vbox_email, int vbox_email_file);
 236         void close_record(int beep, int mute);
 237         void record(unsigned char *data, int length, int dir_fromup);
 238         FILE *p_record;                         /* recording fp: if not NULL, recording is enabled */
 239         int p_record_type;                      /* codec to use: RECORD_MONO, RECORD_STEREO, ... */
 240         int p_record_skip;                      /* skip bytes before writing the sample */
 241         unsigned int p_record_length;           /* size of what's written so far */
 242
 243         signed short p_record_buffer[RECORD_BUFFER_LENGTH];
 244         unsigned int p_record_buffer_readp;
 245         unsigned int p_record_buffer_writep;
 246         int p_record_buffer_dir;                /* current direction in buffer */
 247
 248         char p_record_filename[256];            /* record filename */
 249         int p_record_vbox;                      /* 0= normal recording, 1= announcement, 2= record to vbox dir */
 250         int p_record_vbox_year;                 /* time when vbox recording started */
 251         int p_record_vbox_mon;
 252         int p_record_vbox_mday;
 253         int p_record_vbox_hour;
 254         int p_record_vbox_min;
 255         char p_record_extension[32];            /* current name (digits) of extension */
 256         int p_record_anon_ignore;
 257         char p_record_vbox_email[128];
 258         int p_record_vbox_email_file;
 259         virtual void update_rxoff(void);        /* inherited by mISDNport, to control rxoff */
 260
 261         void free_epointlist(struct epoint_list *epointlist);
 262         void free_epointid(unsigned int epoint_id);
 263         struct epoint_list *epointlist_new(unsigned int epoint_id);
 264 };
 265
 266
 267 extern Port *port_first;
 268 extern unsigned int port_serial;
 269
 270 class Port *find_port_with_token(char *name);
 271 class Port *find_port_id(unsigned int port_id);
 272
 273
 274 #endif // PORT_HEADER
 275
 276