From 1e7f76c790e52f739e940a453aa9de016438569f Mon Sep 17 00:00:00 2001
From: Zilog80 <rs1729@users.noreply.github.com>
Date: Thu, 29 Sep 2016 18:56:42 +0200
Subject: [PATCH] RS41: Reed-Solomon ECC

---
 rs41/rs41ecc.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/rs41/rs41ecc.c b/rs41/rs41ecc.c
index 26fc65e..17193cd 100644
--- a/rs41/rs41ecc.c
+++ b/rs41/rs41ecc.c
@@ -84,7 +84,7 @@ int option_verbose = 0,  // ausfuehrliche Anzeige
 #define HEADLEN 32 // HEADOFS+HEADLEN mod 8 = 0
 #define FRAMESTART ((HEADOFS+HEADLEN)/8)
 
-/*               10      B6      CA      11      22      96      12      F8      */      
+/*               10      B6      CA      11      22      96      12      F8      */
 char header[] = "0000100001101101010100111000100001000100011010010100100000011111";
 char buf[HEADLEN+1] = "x";
 int bufpos = -1;
@@ -97,7 +97,7 @@ ui8_t //xframe[FRAME_LEN] = { 0x10, 0xB6, 0xCA, 0x11, 0x22, 0x96, 0x12, 0xF8},
 
 
 #define MASK_LEN 64
-ui8_t mask[MASK_LEN] = { 0x96, 0x83, 0x3E, 0x51, 0xB1, 0x49, 0x08, 0x98, 
+ui8_t mask[MASK_LEN] = { 0x96, 0x83, 0x3E, 0x51, 0xB1, 0x49, 0x08, 0x98,
                          0x32, 0x05, 0x59, 0x0E, 0xF9, 0x44, 0xC6, 0x26,
                          0x21, 0x60, 0xC2, 0xEA, 0x79, 0x5D, 0x6D, 0xA1,
                          0x54, 0x69, 0x47, 0x0C, 0xDC, 0xE8, 0x5C, 0xF1,
@@ -201,7 +201,7 @@ int read_signed_sample(FILE *fp) {  // int = i32_t
         byte = fgetc(fp);
         if (byte == EOF) return EOF_INT;
         if (i == 0) sample = byte;
-    
+
         if (bits_sample == 16) {
             byte = fgetc(fp);
             if (byte == EOF) return EOF_INT;
@@ -298,7 +298,6 @@ int read_rawbit(FILE *fp, int *bit) {
 
     if (option_inv) *bit ^= 1;
 
-
     return pars;
 }
 
@@ -313,7 +312,7 @@ int bits2byte(char bits[]) {
         if      (bits[i] == 1)  byteval += d;
         else if (bits[i] == 0)  byteval += 0;
         else return 0x100;
-        d <<= 1;      
+        d <<= 1;
     }
     return byteval;
 }
@@ -375,9 +374,9 @@ void Gps2Date(long GpsWeek, long GpsSeconds, int *Year, int *Month, int *Day) {
   Pos: SubHeader, 1+1 byte (ID+LEN)
 0x039: 7928   FrameNumber+SondeID
               +(0x050: 0732  CalFrames 0x00..0x32)
-0x065: 7A2A   
+0x065: 7A2A
 0x093: 7C1E   GPS Week + TOW
-0x0B5: 7D59   
+0x0B5: 7D59
 0x112: 7B15   ECEF (X,Y,Z) Coordinates
 0x12B: 7611   00
 0x12B: 7Exx   AUX-xdata
@@ -580,13 +579,13 @@ void ecef2elli(double X[], double *lat, double *lon, double *h) {
 
     p = sqrt( X[0]*X[0] + X[1]*X[1] );
     t = atan2( X[2]*a , p*b );
-    
+
     phi = atan2( X[2] + ee2 * b * sin(t)*sin(t)*sin(t) ,
                  p - e2 * a * cos(t)*cos(t)*cos(t) );
 
     R = a / sqrt( 1 - e2*sin(phi)*sin(phi) );
     *h = p / cos(phi) - R;
-    
+
     *lat = phi*180/M_PI;
     *lon = lam*180/M_PI;
 }
@@ -824,7 +823,7 @@ int print_position() {
             fprintf(stdout, "[%5d] ", gpx.frnr);
             fprintf(stdout, "(%s) ", gpx.id);
             fprintf(stdout, "%s ", weekday[gpx.wday]);
-            fprintf(stdout, "%04d-%02d-%02d %02d:%02d:%02d", 
+            fprintf(stdout, "%04d-%02d-%02d %02d:%02d:%02d",
                     gpx.jahr, gpx.monat, gpx.tag, gpx.std, gpx.min, gpx.sek);
             if (option_verbose == 3) fprintf(stdout, " (W %d)", gpx.week);
             fprintf(stdout, " ");
@@ -977,7 +976,7 @@ int main(int argc, char *argv[]) {
             else {
                 bitbuf[bit_count] = bit;
                 bit_count++;
-            
+
                 if (bit_count == 8) {
                     bit_count = 0;
                     byte = bits2byte(bitbuf);