Merge commit 'origin/HEAD'

Conflicts:

	gsm-tvoid/src/lib/gsm.i
	gsm-tvoid/src/lib/gsm_burst.cc
	gsm-tvoid/src/lib/gsm_burst.h
	gsm-tvoid/src/lib/gsm_burst_cf.cc
	gsm-tvoid/src/lib/gsm_burst_ff.cc
	gsm-tvoid/src/lib/gsm_burst_ff.h
	gsm-tvoid/src/python/gsm_scan.py

6 files changed, 33 insertions, 42 deletions

diff --git a/gsm-tvoid/src/lib/gsm.i b/gsm-tvoid/src/lib/gsm.i
index 30981f2..106e378 100755
--- a/gsm-tvoid/src/lib/gsm.i
+++ b/gsm-tvoid/src/lib/gsm.i
@@ -87,7 +87,6 @@ public:
 	//Methods
 	void full_reset(void);
 
-
 protected:
 	gsm_burst(gr_feval_ll *);  
 };
diff --git a/gsm-tvoid/src/lib/gsm_burst.cc b/gsm-tvoid/src/lib/gsm_burst.cc
index eb44bb4..14950c6 100755
--- a/gsm-tvoid/src/lib/gsm_burst.cc
+++ b/gsm-tvoid/src/lib/gsm_burst.cc
@@ -173,10 +173,11 @@ void gsm_burst::print_bits(const float *data,int length)
 	assert(length >= 0);
 	
 	for (int i=0; i < length; i++)
-		data[i] < 0 ? fprintf(stdout,"+") : fprintf(stdout,".");
+		data[i] < 0 ? fprintf(stderr,"+") : fprintf(stderr,".");
 		
 }
 
+#if 0
 void gsm_burst::soft2hardbit(char *dst, const float *data, int len)
 {
 	for (int i=0; i < len; i++)
@@ -187,6 +188,7 @@ void gsm_burst::soft2hardbit(char *dst, const float *data, int len)
 			dst[i] = 1;
 	}
 }
+#endif
 
 void gsm_burst::print_burst(void)
 {
@@ -220,7 +222,7 @@ void gsm_burst::print_burst(void)
 			print_bits(d_burst_buffer + d_burst_start,USEFUL_BITS);
 		}
 		
-		fprintf(stdout," ");
+		fprintf(stderr," ");
 	}
 	
 
@@ -230,22 +232,13 @@ void gsm_burst::print_burst(void)
 		 * Pass information to GSM stack. GSM stack will try to extract
 		 * information (fn, layer 2 messages, ...)
 		 */
-	
-		char buf[156];
-		/* In hardbits include the 3 trial bits */
-		/* FIXME: access burst has 8 trail bits? what is d_burst_start
-	 	 * set to? make sure we start at the right position here.
-	 	 */
-		soft2hardbit(buf, d_burst_buffer + d_burst_start - 3, 156);
-		/* GS_process will differentially decode the data and then
-	 	 * extract SCH infos (and later bcch infos).
-	 	 */
-		GS_process(&d_gs_ctx, d_ts, d_burst_type, buf);
+		diff_decode_burst();		
+		GS_process(&d_gs_ctx, d_ts, d_burst_type, d_decoded_burst);
 	}
 	
 	if (print) {
 
-		fprintf(stdout,"%d/%d/%+d/%lu/%lu ",
+		fprintf(stderr,"%d/%d/%+d/%lu/%lu ",
 						d_sync_state,
 						d_ts,
 						d_burst_start - MAX_CORR_DIST,
@@ -254,38 +247,38 @@ void gsm_burst::print_burst(void)
 
 		switch (d_burst_type) {
 		case FCCH:
-			fprintf(stdout,"[FCCH] foff:%g cnt:%lu",d_freq_offset,d_fcch_count);
+			fprintf(stderr,"[FCCH] foff:%g cnt:%lu",d_freq_offset,d_fcch_count);
 			break;
 		case PARTIAL_SCH:
 			bursts_since_sch = d_burst_count - d_last_sch;
 			
-			fprintf(stdout,"[P-SCH] cor:%.2f last:%d cnt: %lu",
+			fprintf(stderr,"[P-SCH] cor:%.2f last:%d cnt: %lu",
 					d_corr_max,bursts_since_sch,d_sch_count);
 			break;
 		case SCH:
 			bursts_since_sch = d_burst_count - d_last_sch;
 			
-			fprintf(stdout,"[SCH] cor:%.2f last:%d cnt: %lu",
+			fprintf(stderr,"[SCH] cor:%.2f last:%d cnt: %lu",
 					d_corr_max,bursts_since_sch,d_sch_count);
 			break;
 		case DUMMY:
-			fprintf(stdout,"[DUMMY] cor:%.2f",d_corr_max);
+			fprintf(stderr,"[DUMMY] cor:%.2f",d_corr_max);
 			break;
 		case ACCESS:
-			fprintf(stdout,"[ACCESS]");		//We don't detect this yet
+			fprintf(stderr,"[ACCESS]");		//We don't detect this yet
 			break;
 		case NORMAL:
-			fprintf(stdout,"[NORM] clr:%d cor:%.2f",d_color_code,d_corr_max);
+			fprintf(stderr,"[NORM] clr:%d cor:%.2f",d_color_code,d_corr_max);
 			break;
 		case UNKNOWN:
-			fprintf(stdout,"[?]");
+			fprintf(stderr,"[?]");
 			break;
 		default:
-			fprintf(stdout,"[oops! default]");
+			fprintf(stderr,"[oops! default]");
 			break;		
 		}
 
-	fprintf(stdout,"\n");
+	fprintf(stderr,"\n");
 
 
 		//print the correlation pattern for visual inspection
@@ -304,10 +297,10 @@ void gsm_burst::print_burst(void)
 			for (int i = 0; i < pat_indent; i++)
 				fprintf(stderr," ");
 			
-			fprintf(stdout," ");	//extra space for skipped bit
+			fprintf(stderr," ");	//extra space for skipped bit
 			print_bits(d_corr_pattern+1,d_corr_pat_size-1);	//skip first bit (diff encoding)
 			
-			fprintf(stdout,"\t\toffset:%d, max: %.2f \n",d_corr_maxpos,d_corr_max);
+			fprintf(stderr,"\t\toffset:%d, max: %.2f \n",d_corr_maxpos,d_corr_max);
 		}
 	
 	}
@@ -323,10 +316,10 @@ void gsm_burst::print_burst(void)
 	//Print State related messages
 	if ( d_print_options & PRINT_STATE ) {
 		if ( (SYNCHRONIZED == d_sync_state) && (SYNCHRONIZED != d_last_sync_state) ) {
-			fprintf(stdout,"====== SYNC GAINED (FOff: %g Corr: %.2f, Color: %d ) ======\n",d_freq_offset,d_corr_max,d_color_code);
+			fprintf(stderr,"====== SYNC GAINED (FOff: %g Corr: %.2f, Color: %d ) ======\n",d_freq_offset,d_corr_max,d_color_code);
 		}
 		else if ( (SYNCHRONIZED != d_sync_state) && (SYNCHRONIZED == d_last_sync_state) ) {
-			fprintf(stdout,"====== SYNC LOST (%ld) ======\n",d_sync_loss_count);
+			fprintf(stderr,"====== SYNC LOST (%ld) ======\n",d_sync_loss_count);
 		}
 	}
 	
diff --git a/gsm-tvoid/src/lib/gsm_burst.h b/gsm-tvoid/src/lib/gsm_burst.h
index 2e482d0..48fafac 100755
--- a/gsm-tvoid/src/lib/gsm_burst.h
+++ b/gsm-tvoid/src/lib/gsm_burst.h
@@ -145,7 +145,7 @@ protected:
 	void			print_bits(const float *data,int length);
 	void			print_hex(const unsigned char *data,int length);
 
-	void			soft2hardbit(char *dst, const float *data, int len);	//need this?
+//	void			soft2hardbit(char *dst, const float *data, int len);	//need this?
 	void			print_burst(void);
 
 	void			diff_encode(const float *in,float *out,int length,float lastbit = 1.0);	
diff --git a/gsm-tvoid/src/lib/gsmstack.c b/gsm-tvoid/src/lib/gsmstack.c
index a38ffcb..22fa170 100644
--- a/gsm-tvoid/src/lib/gsmstack.c
+++ b/gsm-tvoid/src/lib/gsmstack.c
@@ -14,6 +14,7 @@
 
 static void out_gsmdecode(char type, int arfcn, int ts, int fn, char *data, int len);
 
+#if 0
 static void
 diff_decode(char *dst, char *src, int len)
 {
@@ -33,6 +34,7 @@ diff_decode(char *dst, char *src, int len)
 		dst++;
 	}
 }
+#endif
 
 /*
  * Initialize a new GSMSTACK context.
@@ -49,26 +51,23 @@ GS_new(GS_CTX *ctx)
 }
 
 /*
- * 156 bit
+ * 142 bit
  */
 int
-GS_process(GS_CTX *ctx, int ts, int type, char *src)
+GS_process(GS_CTX *ctx, int ts, int type, const unsigned char *src)
 {
 	int fn;
 	int bsic;
 	int ret;
-	char buf[156];
 	unsigned char *data;
 	int len;
 
 	if (ts != 0)
 		return;
 
-	diff_decode(buf, src, 156);
-
 	if (type == SCH)
 	{
-		ret = decode_sch(buf, &fn, &bsic);
+		ret = decode_sch(src, &fn, &bsic);
 		if (ret != 0)
 			return 0;
 		if ((ctx->bsic > 0) && (bsic != ctx->bsic))
@@ -94,8 +93,8 @@ GS_process(GS_CTX *ctx, int ts, int type, char *src)
  		 */
 		/* Copy content data into new array */
 		//DEBUGF("burst count %d\n", ctx->burst_count);
-		memcpy(ctx->burst + (116 * ctx->burst_count), buf + 3, 58);
-		memcpy(ctx->burst + (116 * ctx->burst_count) + 58, buf + 3 + 58 + 26, 58);
+		memcpy(ctx->burst + (116 * ctx->burst_count), src, 58);
+		memcpy(ctx->burst + (116 * ctx->burst_count) + 58, src + 58 + 26, 58);
 		ctx->burst_count++;
 		/* Return if not enough bursts for a full gsm message */
 		if (ctx->burst_count < 4)
diff --git a/gsm-tvoid/src/lib/gsmstack.h b/gsm-tvoid/src/lib/gsmstack.h
index fa858ba..d79a40f 100644
--- a/gsm-tvoid/src/lib/gsmstack.h
+++ b/gsm-tvoid/src/lib/gsmstack.h
@@ -22,7 +22,7 @@ typedef struct
 } GS_CTX;
 
 int GS_new(GS_CTX *ctx);
-int GS_process(GS_CTX *ctx, int ts, int type, char *data);
+int GS_process(GS_CTX *ctx, int ts, int type, const unsigned char *src);
 
 #ifdef __cplusplus
 }
diff --git a/gsm-tvoid/src/lib/sch.c b/gsm-tvoid/src/lib/sch.c
index c01d7bb..d311371 100644
--- a/gsm-tvoid/src/lib/sch.c
+++ b/gsm-tvoid/src/lib/sch.c
@@ -243,10 +243,10 @@ int decode_sch(const unsigned char *buf, int *fn_o, int *bsic_o) {
 	unsigned char data[CONV_SIZE], decoded_data[PARITY_OUTPUT_SIZE];
 
 	// extract encoded data from synchronization burst
-	/* buf + 3, 39 bit */
-	/* buf + 3 + 39 + 64 = 106, 39 */
-	memcpy(data, buf + SB_EDATA_OS_1, SB_EDATA_LEN_1);
-	memcpy(data + SB_EDATA_LEN_1, buf + SB_EDATA_OS_2, SB_EDATA_LEN_2);
+	/* buf, 39 bit */
+	/* buf + 39 + 64 = 103, 39 */
+	memcpy(data, buf, SB_EDATA_LEN_1);
+	memcpy(data + SB_EDATA_LEN_1, buf + SB_EDATA_LEN_1 + N_SYNC_BITS, SB_EDATA_LEN_2);
 
 	// Viterbi decode
 	if(errors = conv_decode(data, decoded_data)) {