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