138 lines
5.6 KiB
C
138 lines
5.6 KiB
C
#include "../libcompandor/compandor.h"
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#include "../libtimer/timer.h"
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#include "../libmobile/sender.h"
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#include "../libmobile/call.h"
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#include "../libfsk/fsk.h"
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enum dsp_mode {
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DSP_MODE_OFF, /* no transmission */
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DSP_MODE_AUDIO_TX, /* stream audio (TX only) */
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DSP_MODE_AUDIO_TX_RX, /* stream audio */
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DSP_MODE_FRAME, /* send frames */
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};
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enum r2000_chan_type {
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CHAN_TYPE_CC, /* calling channel */
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CHAN_TYPE_TC, /* traffic channel */
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CHAN_TYPE_CC_TC, /* combined CC + TC */
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};
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enum r2000_state {
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STATE_NULL = 0, /* power off state */
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STATE_IDLE, /* channel is not in use */
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STATE_INSCRIPTION, /* SM registers */
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STATE_OUT_ASSIGN, /* assign outgoing call on CC */
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STATE_IN_ASSIGN, /* assign incoming call on CC */
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STATE_RECALL_ASSIGN, /* assign outgoing recall on CC */
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STATE_OUT_IDENT, /* identity outgoing call on TC */
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STATE_IN_IDENT, /* identity incoming call on TC */
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STATE_RECALL_IDENT, /* identity outgoing recall on TC */
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STATE_OUT_DIAL1, /* dialing outgoing call on TC */
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STATE_OUT_DIAL2, /* dialing outgoing call on TC */
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STATE_SUSPEND, /* suspend after dialing outgoing call on TC */
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STATE_RECALL_WAIT, /* wait for calling back the phone */
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STATE_IN_ALERT, /* alerting incoming call on TC */
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STATE_OUT_ALERT, /* alerting outgoing call on TC */
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STATE_RECALL_ALERT, /* alerting outgoing recall on TC */
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STATE_ACTIVE, /* channel is in use */
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STATE_RELEASE_CC, /* release call on CC */
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STATE_RELEASE_TC, /* release call on TC */
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};
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typedef struct r2000_subscriber {
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uint8_t type; /* mobile station type */
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uint16_t relais; /* home relais */
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uint16_t mor; /* mobile ID */
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char dialing[21]; /* dial string */
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} r2000_subscriber_t;
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typedef struct r2000_sysinfo {
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enum r2000_chan_type chan_type; /* channel type */
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uint8_t deport; /* sub-station number */
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uint8_t agi; /* inscription parameter */
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uint8_t sm_power; /* station mobile power 1 = high */
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uint8_t taxe; /* rate parameter */
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uint16_t relais; /* relais ID */
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uint8_t crins; /* response to inscription */
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uint8_t nconv; /* supervisory value */
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int recall; /* do a recall when called party answered */
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} r2000_sysinfo_t;
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typedef struct r2000 {
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sender_t sender;
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r2000_sysinfo_t sysinfo;
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compandor_t cstate;
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int pre_emphasis; /* use pre_emphasis by this instance */
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int de_emphasis; /* use de_emphasis by this instance */
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emphasis_t estate;
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/* sender's states */
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enum r2000_state state;
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int callref;
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struct timer timer;
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r2000_subscriber_t subscriber;
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int page_try; /* the try number of calling the mobile */
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int tx_frame_count; /* to count repeated frames */
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/* display measurements */
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dispmeasparam_t *dmp_frame_level;
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dispmeasparam_t *dmp_frame_quality;
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dispmeasparam_t *dmp_super_level;
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dispmeasparam_t *dmp_super_quality;
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/* features */
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int compandor; /* if compandor shall be used */
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/* dsp states */
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enum dsp_mode dsp_mode; /* current mode: audio, durable tone 0 or 1, paging */
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fsk_mod_t fsk_mod; /* fsk processing */
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fsk_demod_t fsk_demod;
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char tx_frame[208]; /* carries bits of one frame to transmit */
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int tx_frame_length;
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int tx_frame_pos;
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int tx_last_frame_idle; /* indicator to prevent debugging all idle frames */
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uint16_t rx_sync; /* shift register to detect sync */
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int rx_in_sync; /* if we are in sync and receive bits */
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int rx_mute; /* mute count down after sync */
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int rx_max; /* maximum bits to receive (including 32 bits sync sequence) */
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char rx_frame[177]; /* receive frame (one extra byte to terminate string) */
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int rx_count; /* next bit to receive */
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double rx_level[256]; /* level infos */
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double rx_quality[256]; /* quality infos */
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uint64_t rx_bits_count; /* sample counter */
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uint64_t rx_bits_count_current; /* sample counter of current frame */
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uint64_t rx_bits_count_last; /* sample counter of last frame */
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/* supervisory dsp states */
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fsk_mod_t super_fsk_mod; /* fsk processing */
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fsk_demod_t super_fsk_demod;
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uint32_t super_tx_word; /* supervisory info to transmit */
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int super_tx_word_length;
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int super_tx_word_pos;
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iir_filter_t super_tx_hp; /* filters away the speech that overlaps with the supervisory */
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uint32_t super_rx_word; /* shift register for received supervisory info */
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double super_rx_level[20]; /* level infos */
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double super_rx_quality[20]; /* quality infos */
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int super_rx_index; /* index for level and quality buffer */
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iir_filter_t super_rx_hp; /* filters away the supervisory */
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double super_bittime;
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double super_bitpos;
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} r2000_t;
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void r2000_channel_list(void);
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int r2000_channel_by_short_name(const char *short_name);
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const char *chan_type_short_name(enum r2000_chan_type chan_type);
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const char *chan_type_long_name(enum r2000_chan_type chan_type);
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int r2000_create(int band, const char *kanal, enum r2000_chan_type chan_type, const char *device, int use_sdr, int samplerate, double rx_gain, double tx_gain, int pre_emphasis, int de_emphasis, const char *write_rx_wave, const char *write_tx_wave, const char *read_rx_wave, const char *read_tx_wave, uint16_t relais, uint8_t deport, uint8_t agi, uint8_t sm_power, uint8_t taxe, uint8_t crins, int destruction, uint8_t nconv, int recall, int loopback);
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void r2000_check_channels(void);
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void r2000_destroy(sender_t *sender);
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void r2000_go_idle(r2000_t *r2000);
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void r2000_band_list(void);
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double r2000_channel2freq(int band, int channel, int uplink);
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const char *r2000_number_valid(const char *number);
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const char *r2000_get_frame(r2000_t *r2000);
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void r2000_receive_frame(r2000_t *r2000, const char *bits, double quality, double level);
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void r2000_receive_super(r2000_t *r2000, uint8_t super, double quality, double level);
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