add header files

Signed-off-by: Jack Tan <[email protected]>

acarsx.h

@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 2014 Thierry Leconte (f4dwv)
+ * Copyright (c) 2014 Jack Tan(BH1RBH) at Jack's Lab
+ * 
+ * This code is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Library General Public License version 2
+ * published by the Free Software Foundation.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Library General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include <time.h>
+#include <pthread.h>
+
+#define MAXNBCHANNELS 6
+
+typedef float sample_t;
+
+typedef struct mskblk_s {
+	struct mskblk_s *prev;
+	int chn;
+	time_t t;
+	int len;
+	int lvl, err;
+	unsigned char txt[250];
+	unsigned char crc[2];
+} msgblk_t;
+
+typedef struct {
+	int chn;
+	int inmode;
+	int Infs;
+
+	float Fr;
+	float *swf;
+	float *cwf;
+
+	float MskPhi;
+	float MskFreq, MskDf;
+	float Mska, MskKa;
+	float Mskdc, Mskdcf;
+	float MskClk;
+	unsigned int MskS;
+
+	sample_t *I, *Q;
+	float *h;
+	int flen, idx;
+
+	unsigned char outbits;
+	int nbits;
+
+	enum { WSYN, SYN2, SOH1, TXT, CRC1, CRC2, END } Acarsstate;
+	msgblk_t *blk;
+
+} channel_t;
+
+extern channel_t channel[MAXNBCHANNELS];
+extern unsigned int nbch;
+extern unsigned long wrktot;
+extern unsigned long wrkmask;
+extern pthread_mutex_t datamtx;
+extern pthread_cond_t datawcd;
+
+extern int inpmode;
+extern int verbose;
+extern int outtype;
+extern int airflt;
+extern int gain;
+extern int ppm;
+
+extern int init_output(char *, char *);
+
+extern int init_rtl(char **argv, int optind);
+extern int run_rtl_sample(void);
+
+extern int init_msk(channel_t *);
+extern void demod_msk(float in, channel_t *);
+
+extern int init_acars(channel_t *);
+extern void decode_acars(channel_t *);
+
+extern void outputmsg(const msgblk_t *);