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 handler(void);
  29         int message_epoint(unsigned int epoint_id, int message, union parameter *param);
  30         void set_tone(const char *dir, const char *name);
  31
  32         int p_m_s_state; /* current signalling state */
  33         int p_m_s_signal; /* current state of current signal */
  34         char p_m_s_dial[64]; /* current dialing register */
  35         int p_m_s_digit_i; /* current digit of register counter */
  36         int p_m_s_pulsecount; /* counts pule dialing half cycles */
  37         char p_m_s_last_digit; /* stores last digit that was detected, to fill short signal losses */
  38         char p_m_s_last_digit_used; /* stores last digit that was used, to ignore short changes of signal due to noise */
  39         int p_m_s_signal_loss; /* sample counter for loss of signal check */
  40         int p_m_s_decoder_count; /* samples currently decoded */
  41         unsigned char p_m_s_decoder_buffer[SS5_DECODER_NPOINTS]; /* buffer for storing one goertzel window */
  42         unsigned char p_m_s_delay_digits[3000/SS5_DECODER_NPOINTS]; /* delay buffer for received digits */
  43         unsigned char p_m_s_delay_mute[400/SS5_DECODER_NPOINTS]; /* 40 ms delay on mute, so a 'chirp' can be heared */
  44         int p_m_s_sample_nr; /* decoder's sample number, counter */
  45         int p_m_s_recog; /* sample counter to wait for signal recognition time */
  46         double p_m_s_timer;
  47         void (Pss5::*p_m_s_timer_fn)(void);
  48         int p_m_s_answer; /* queued signal */
  49         int p_m_s_busy_flash; /* queued signal */
  50         int p_m_s_clear_back; /* queued signal */
  51
  52         void _new_ss5_state(int state, const char *func, int line);
  53         void _new_ss5_signal(int signal, const char *func, int line);
  54         void inband_receive(unsigned char *buffer, int len);
  55         int inband_send(unsigned char *buffer, int len);
  56         int inband_dial_mf(unsigned char *buffer, int len, int count);
  57         int inband_dial_pulse(unsigned char *buffer, int len, int count);
  58         void start_signal(int);
  59         void start_outgoing(void);
  60         void do_release(int cause, int location);
  61         void do_setup(char *digit, int complete);
  62
  63         void seizing_ind(void);
  64         void digit_ind(char digit);
  65         void pulse_ind(int on);
  66         void proceed_to_send_ind(void);
  67         void busy_flash_ind(void);
  68         void answer_ind(void);
  69         void forward_ind(void);
  70         void clear_back_ind(void);
  71         void clear_forward_ind(void);
  72         void release_guard_ind(void);
  73         void double_seizure_ind(void);
  74         void forward_transfer_ind(void);
  75         void message_setup(unsigned int epoint_id, int message_id, union parameter *param);
  76         void message_connect(unsigned int epoint_id, int message_id, union parameter *param);
  77         void message_disconnect(unsigned int epoint_id, int message_id, union parameter *param);
  78         void message_release(unsigned int epoint_id, int message_id, union parameter *param);
  79
  80         void register_timeout(void);
  81
  82 };
  83
  84 #define new_ss5_state(a) _new_ss5_state(a, __FUNCTION__, __LINE__)
  85 #define new_ss5_signal(a) _new_ss5_signal(a, __FUNCTION__, __LINE__)
  86
  87 void ss5_create_channel(struct mISDNport *mISDNport, int i);
  88 class Pss5 *ss5_hunt_line(struct mISDNport *mISDNport);
  89