From 50998fcfb916ae251309bd4b464f2c122e8cb30d Mon Sep 17 00:00:00 2001
From: jaseg <git-bigdata-wsl-arch@jaseg.de>
Date: Fri, 9 Apr 2021 18:38:02 +0200
Subject: Repo re-org

---
 controller/fw/src/dsss_demod.h | 75 ------------------------------------------
 1 file changed, 75 deletions(-)
 delete mode 100644 controller/fw/src/dsss_demod.h

(limited to 'controller/fw/src/dsss_demod.h')

diff --git a/controller/fw/src/dsss_demod.h b/controller/fw/src/dsss_demod.h
deleted file mode 100644
index b865d83..0000000
--- a/controller/fw/src/dsss_demod.h
+++ /dev/null
@@ -1,75 +0,0 @@
-#ifndef __DSSS_DEMOD_H__
-#define __DSSS_DEMOD_H__
-
-#include <stdint.h>
-#include <unistd.h>
-
-#define DSSS_GOLD_CODE_LENGTH   ((1<<DSSS_GOLD_CODE_NBITS) - 1)
-#define DSSS_GOLD_CODE_COUNT    ((1<<DSSS_GOLD_CODE_NBITS) + 1)
-#define DSSS_CORRELATION_LENGTH (DSSS_GOLD_CODE_LENGTH * DSSS_DECIMATION)
-
-/* FIXME: move to makefile */
-#define DSSS_MATCHER_CACHE_SIZE 8
-
-#if DSSS_GOLD_CODE_NBITS < 8
-typedef uint8_t symbol_t;
-#else
-typedef uint16_t symbol_t;
-#endif
-
-struct iir_biquad {
-    float a[2];
-    float b[3];
-};
-
-struct iir_biquad_state {
-    float reg[2];
-};
-
-struct cwt_iir_filter_state {
-    struct iir_biquad_state st[3];
-};
-
-struct group {
-    int len; /* length of group in samples */
-    float max; /* signed value of largest peak in group on any channel */
-    uint64_t max_ts; /* absolute position of above peak */
-    int max_ch; /* channel (gold sequence index) of above peak */
-};
-
-struct matcher_state {
-    int last_phase; /* 0 .. DSSS_CORRELATION_LENGTH */
-    int candidate_phase;
-
-    float last_score;
-    float candidate_score;
-
-    int last_skips;
-    int candidate_skips;
-
-    symbol_t data[TRANSMISSION_SYMBOLS]; 
-    int data_pos;
-    symbol_t candidate_data;
-};
-
-struct dsss_demod_state {
-    float signal[DSSS_CORRELATION_LENGTH];
-    size_t signal_wpos;
-
-    float correlation[DSSS_GOLD_CODE_COUNT][DSSS_WAVELET_LUT_SIZE];
-    size_t correlation_wpos;
-
-    struct cwt_iir_filter_state cwt_filter;
-
-    struct group group;
-
-    struct matcher_state matcher_cache[DSSS_MATCHER_CACHE_SIZE];
-};
-
-
-extern void handle_dsss_received(symbol_t data[static TRANSMISSION_SYMBOLS]);
-
-void dsss_demod_init(struct dsss_demod_state *st);
-void dsss_demod_step(struct dsss_demod_state *st, float new_value, uint64_t ts);
-
-#endif /* __DSSS_DEMOD_H__ */
-- 
cgit