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AMPS: Add option to use the BUSY/IDLE bit on FOCC

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This commit is contained in:
Andreas Eversberg
2016-06-20 17:16:46 +02:00
parent 76f6285846
commit 86daa5a64a
7 changed files with 133 additions and 129 deletions
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5
src/amps/amps.h
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@@ -31,7 +31,7 @@ enum fsk_rx_sync {
FSK_SYNC_NEGATIVE, /* as above, but negative sync (high frequency deviation detected as low signal) */
};
#define FSK_MAX_BITS 1032 /* maximum number of bits to process */
#define FSK_MAX_BITS 1032 /* maximum number of bits to process (FVC with dotting+sync) */
typedef struct amps {
sender_t sender;
@@ -44,6 +44,7 @@ typedef struct amps {
enum amps_chan_type chan_type;
enum amps_state state;
int page_retry; /* current number of paging (re)try */
int channel_busy; /* indicate channel is busy while receiving */
/* system info */
amps_si si;
@@ -60,6 +61,8 @@ typedef struct amps {
double fsk_bitduration; /* duration of one bit in samples */
double fsk_bitstep; /* fraction of one bit each sample */
/* tx bits generation */
char fsk_tx_frame[FSK_MAX_BITS + 1]; /* +1 because 0-termination */
int fsk_tx_frame_pos; /* current position sending bits */
int16_t *fsk_tx_buffer; /* tx buffer for one data block */
int fsk_tx_buffer_size; /* size of tx buffer (in samples) */
int fsk_tx_buffer_length; /* usage of buffer (in samples) */