108 lines
4.5 KiB
C
108 lines
4.5 KiB
C
#include "../libmobile/sender.h"
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enum pocsag_function {
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POCSAG_FUNCTION_NUMERIC = 0,
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POCSAG_FUNCTION_BEEP1,
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POCSAG_FUNCTION_BEEP2,
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POCSAG_FUNCTION_ALPHA,
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};
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extern const char *pocsag_function_name[4];
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enum pocsag_state {
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POCSAG_IDLE = 0,
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POCSAG_PREAMBLE,
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POCSAG_MESSAGE,
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};
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enum pocsag_language {
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LANGUAGE_DEFAULT = 0,
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LANGUAGE_GERMAN,
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};
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struct pocsag;
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/* instance of outgoing message */
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typedef struct pocsag_msg {
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struct pocsag_msg *next;
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struct pocsag *pocsag;
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int callref; /* call reference */
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uint32_t ric; /* current pager ID */
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enum pocsag_function function; /* current function */
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char data[256]; /* message to be transmitted */
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int data_length; /* length of message that is not 0-terminated */
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int data_index; /* current character transmitting */
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int bit_index; /* current bit transmitting */
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int repeat; /* how often the message is sent */
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} pocsag_msg_t;
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/* instance of pocsag transmitter/receiver */
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typedef struct pocsag {
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sender_t sender;
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/* system info */
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int tx; /* can transmit */
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int rx; /* can receive */
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enum pocsag_language language; /* special characters */
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enum pocsag_function default_function; /* default function, if not given by caller */
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const char *default_message; /* default message, if caller has no caller ID */
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/* tx states */
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enum pocsag_state state; /* state (idle, preamble, message) */
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pocsag_msg_t *current_msg; /* msg, if message codewords are transmitted */
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int word_count; /* counter for codewords */
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int idle_count; /* counts when to go idle */
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uint32_t scan_from, scan_to; /* if not equal: scnning mode */
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/* rx states */
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int rx_msg_valid; /* currently in receiving message state */
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uint32_t rx_msg_ric; /* ric of message */
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enum pocsag_function rx_msg_function; /* function of message */
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char rx_msg_data[256]; /* data buffer */
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int rx_msg_data_length; /* complete characters received */
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int rx_msg_bit_index; /* current bit received for alphanumeric */
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/* calls */
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pocsag_msg_t *msg_list; /* linked list of all calls */
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/* dsp states */
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double fsk_deviation; /* deviation of FSK signal on sound card */
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double fsk_polarity; /* polarity of FSK signal (-1.0 = bit '1' is down) */
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sample_t fsk_ramp_up[256]; /* samples of upward ramp shape */
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sample_t fsk_ramp_down[256]; /* samples of downward ramp shape */
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double fsk_bitduration; /* duration of a bit in samples */
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double fsk_bitstep; /* fraction of a bit each sample */
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sample_t *fsk_tx_buffer; /* tx buffer for one data block */
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int fsk_tx_buffer_size; /* size of tx buffer (in samples) */
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int fsk_tx_buffer_length; /* usage of buffer (in samples) */
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int fsk_tx_buffer_pos; /* current position sending buffer */
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double fsk_tx_phase; /* current bit position */
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uint8_t fsk_tx_lastbit; /* last bit of last message, to correctly ramp */
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double fsk_rx_phase; /* current sample position */
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uint8_t fsk_rx_lastbit; /* last bit of last message, to detect level */
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uint32_t fsk_rx_word; /* shift register to receive codeword */
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int fsk_rx_sync; /* counts down to next sync */
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int fsk_rx_index; /* counts bits of received codeword */
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} pocsag_t;
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int msg_receive(const char *text);
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int pocsag_function_name2value(const char *text);
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void pocsag_list_channels(void);
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double pocsag_channel2freq(const char *kanal, double *deviation, double *polarity, int *baudrate);
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const char *pocsag_number_valid(const char *number);
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void pocsag_add_id(const char *id);
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int pocsag_init(void);
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void pocsag_exit(void);
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int pocsag_init(void);
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void pocsag_exit(void);
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void pocsag_new_state(pocsag_t *pocsag, enum pocsag_state new_state);
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void pocsag_msg_receive(enum pocsag_language language, const char *channel, uint32_t ric, enum pocsag_function function, const char *message);
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int pocsag_create(const char *kanal, double frequency, const char *device, int use_sdr, int samplerate, double rx_gain, double tx_gain, int tx, int rx, enum pocsag_language language, int baudrate, double deviation, double polarity, enum pocsag_function function, const char *message, uint32_t scan_from, uint32_t scan_to, const char *write_rx_wave, const char *write_tx_wave, const char *read_rx_wave, const char *read_tx_wave, int loopback);
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void pocsag_destroy(sender_t *sender);
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void pocsag_msg_send(enum pocsag_language language, const char *text);
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void pocsag_msg_destroy(pocsag_msg_t *msg);
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void pocsag_get_id(pocsag_t *euro, char *id);
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void pocsag_receive_id(pocsag_t *euro, char *id);
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void pocsag_msg_done(pocsag_t *pocsag);
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