ss5.h

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** LCR                                                                       **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** ss5-port header file                                                      **
   9 **                                                                           **
  10 \*****************************************************************************/
  11
  12 #define SS5_ENABLE                      0x00000001
  13 #define SS5_FEATURE_CONNECT             0x00000002
  14 #define SS5_FEATURE_NODISCONNECT        0x00000004
  15 #define SS5_FEATURE_RELEASEGUARDTIMER   0x00000008
  16 #define SS5_FEATURE_BELL                0x00000010
  17 #define SS5_FEATURE_PULSEDIALING        0x00000020
  18 #define SS5_FEATURE_DELAY               0x00000040
  19 #define SS5_FEATURE_STAR_RELEASE        0x00000080
  20 #define SS5_FEATURE_SUPPRESS            0x00000100
  21
  22 /* SS5 port classes */
  23 class Pss5 : public PmISDN
  24 {
  25         public:
  26         Pss5(int type, struct mISDNport *mISDNport, char *portname, struct port_settings *settings, int channel, int exclusive, int mode);
  27         ~Pss5();
  28         int message_epoint(unsigned int epoint_id, int message, union parameter *param);
  29         void set_tone(const char *dir, const char *name);
  30
  31         int p_m_s_state; /* current signalling state */
  32         int p_m_s_signal; /* current state of current signal */
  33         char p_m_s_dial[64]; /* current dialing register */
  34         int p_m_s_digit_i; /* current digit of register counter */
  35         int p_m_s_pulsecount; /* counts pule dialing half cycles */
  36         char p_m_s_last_digit; /* stores last digit that was detected, to fill short signal losses */
  37         char p_m_s_last_digit_used; /* stores last digit that was used, to ignore short changes of signal due to noise */
  38         int p_m_s_signal_loss; /* sample counter for loss of signal check */
  39         int p_m_s_decoder_count; /* samples currently decoded */
  40         unsigned char p_m_s_decoder_buffer[SS5_DECODER_NPOINTS]; /* buffer for storing one goertzel window */
  41         unsigned char p_m_s_delay_digits[3000/SS5_DECODER_NPOINTS]; /* delay buffer for received digits */
  42         unsigned char p_m_s_delay_mute[400/SS5_DECODER_NPOINTS]; /* 40 ms delay on mute, so a 'chirp' can be heared */
  43         int p_m_s_sample_nr; /* decoder's sample number, counter */
  44         int p_m_s_recog; /* sample counter to wait for signal recognition time */
  45         struct lcr_work p_m_s_queue;
  46         int p_m_s_answer; /* queued signal */
  47         int p_m_s_busy_flash; /* queued signal */
  48         int p_m_s_clear_back; /* queued signal */
  49
  50         void _new_ss5_state(int state, const char *func, int line);
  51         void _new_ss5_signal(int signal, const char *func, int line);
  52         void inband_receive(unsigned char *buffer, int len);
  53         int inband_send(unsigned char *buffer, int len);
  54         int inband_dial_mf(unsigned char *buffer, int len, int count);
  55         int inband_dial_pulse(unsigned char *buffer, int len, int count);
  56         void start_signal(int);
  57         void start_outgoing(void);
  58         void do_release(int cause, int location);
  59         void do_setup(char *digit, int complete);
  60
  61         void seizing_ind(void);
  62         void digit_ind(char digit);
  63         void pulse_ind(int on);
  64         void proceed_to_send_ind(void);
  65         void busy_flash_ind(void);
  66         void answer_ind(void);
  67         void forward_ind(void);
  68         void clear_back_ind(void);
  69         void clear_forward_ind(void);
  70         void release_guard_ind(void);
  71         void double_seizure_ind(void);
  72         void forward_transfer_ind(void);
  73         void message_setup(unsigned int epoint_id, int message_id, union parameter *param);
  74         void message_connect(unsigned int epoint_id, int message_id, union parameter *param);
  75         void message_disconnect(unsigned int epoint_id, int message_id, union parameter *param);
  76         void message_release(unsigned int epoint_id, int message_id, union parameter *param);
  77
  78         void register_timeout(void);
  79
  80 };
  81
  82 #define new_ss5_state(a) _new_ss5_state(a, __FUNCTION__, __LINE__)
  83 #define new_ss5_signal(a) _new_ss5_signal(a, __FUNCTION__, __LINE__)
  84
  85 void ss5_create_channel(struct mISDNport *mISDNport, int i);
  86 class Pss5 *ss5_hunt_line(struct mISDNport *mISDNport);
  87