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New common FSK implementation, replaces all individual implementations

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This commit is contained in:
Andreas Eversberg
2017-08-05 10:41:23 +02:00
parent ffd3b848e1
commit 534411d660
21 changed files with 785 additions and 1117 deletions
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29
src/r2000/r2000.h
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@@ -1,7 +1,7 @@
#include "../common/compandor.h"
#include "../common/sender.h"
#include "../common/call.h"
#include "../common/ffsk.h"
#include "../common/fsk.h"
enum dsp_mode {
DSP_MODE_OFF, /* no transmission */
@@ -78,7 +78,10 @@ typedef struct r2000 {
/* dsp states */
enum dsp_mode dsp_mode; /* current mode: audio, durable tone 0 or 1, paging */
ffsk_t ffsk; /* ffsk processing */
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 */
@@ -87,33 +90,19 @@ typedef struct r2000 {
int rx_count; /* next bit to receive */
double rx_level[256]; /* level infos */
double rx_quality[256]; /* quality infos */
sample_t *frame_spl; /* samples to store a complete rendered frame */
int frame_size; /* total size of sample buffer */
int frame_length; /* current length of data in sample buffer */
int frame_pos; /* current sample position in frame_spl */
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 */
goertzel_t super_goertzel[2]; /* filter for fsk decoding */
int super_samples_per_window;/* how many samples to analyze in one window */
sample_t *super_filter_spl; /* array with samples_per_bit */
int super_filter_pos; /* current sample position in filter_spl */
int super_filter_step; /* number of samples for each analyzation */
int super_filter_bit; /* last bit, so we detect a bit change */
int super_filter_sample; /* count until it is time to sample bit */
sample_t *super_spl; /* samples to store a complete rendered frame */
int super_size; /* total size of sample buffer */
int super_length; /* current length of data in sample buffer */
int super_pos; /* current sample position in frame_spl */
double super_phaseshift65536[2];/* how much the phase of sine wave changes per sample */
double super_phase65536; /* current phase */
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;
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 */
uint32_t super_tx_word; /* supervisory info to transmit */
double super_bittime;
double super_bitpos;