From 0c97a4562dfc38dbda89277434b077d084e21588 Mon Sep 17 00:00:00 2001
From: iceman1001 <iceman@iuse.se>
Date: Thu, 10 Dec 2015 10:30:13 +0100
Subject: [PATCH 1/1] ADD: @marshmellow42 's fixes to cmdlft55xx.c 
 (save_restoreGB) ADD: started with a skeleton method for printing  hex and
 ascill.

---
 client/cmdlft55xx.c | 12 +++++++++++-
 client/util.c       | 13 ++++++++++++-
 client/util.h       |  1 +
 3 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/client/cmdlft55xx.c b/client/cmdlft55xx.c
index 386ac608..de0ade28 100644
--- a/client/cmdlft55xx.c
+++ b/client/cmdlft55xx.c
@@ -384,18 +384,22 @@ bool DecodeT55xxBlock(){
 			ans = ASKDemod(cmdStr, FALSE, FALSE, 1);
 			break;
 		case DEMOD_PSK1:
-			// skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
+			// skip first 16 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
+			save_restoreGB(1);
 			CmdLtrim("160");
 			snprintf(cmdStr, sizeof(buf),"%d %d 6", bitRate[config.bitrate], config.inverted );
 			ans = PSKDemod(cmdStr, FALSE);
+			save_restoreGB(0);
 			break;
 		case DEMOD_PSK2: //inverted won't affect this
 		case DEMOD_PSK3: //not fully implemented
 			// skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)
+			save_restoreGB(1);
 			CmdLtrim("160");
 			snprintf(cmdStr, sizeof(buf),"%d 0 6", bitRate[config.bitrate] );
 			ans = PSKDemod(cmdStr, FALSE);
 			psk1TOpsk2(DemodBuffer, DemodBufferLen);
+			save_restoreGB(1);
 			break;
 		case DEMOD_NRZ:
 			snprintf(cmdStr, sizeof(buf),"%d %d 1", bitRate[config.bitrate], config.inverted );
@@ -1011,8 +1015,14 @@ int CmdT55xxInfo(const char *Cmd){
 
 	if (!DecodeT55xxBlock()) return 1;
 
+	// too little space to start with
 	if ( DemodBufferLen < 32) return 1;
 
+	// 
+	PrintAndLog("Offset+32 ==%d\n DemodLen == %d", config.offset + 32,DemodBufferLen );
+		
+
+	
 	uint8_t si = config.offset;
 	uint32_t bl0      = PackBits(si, 32, DemodBuffer);
 	
diff --git a/client/util.c b/client/util.c
index 057be9ed..29914667 100644
--- a/client/util.c
+++ b/client/util.c
@@ -124,7 +124,12 @@ char *sprint_hex(const uint8_t *data, const size_t len) {
 
 char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t breaks) {
 	// make sure we don't go beyond our char array memory
-	int max_len = ( len+(len/breaks) > MAX_BIN_BREAK_LENGTH ) ? MAX_BIN_BREAK_LENGTH : len+(len/breaks);
+	int max_len;
+	if (breaks==0)
+		max_len = ( len > MAX_BIN_BREAK_LENGTH ) ? MAX_BIN_BREAK_LENGTH : len;
+	else
+		max_len = ( len+(len/breaks) > MAX_BIN_BREAK_LENGTH ) ? MAX_BIN_BREAK_LENGTH : len+(len/breaks);
+
 	static char buf[MAX_BIN_BREAK_LENGTH]; // 3072 + end of line characters if broken at 8 bits
 	//clear memory
 	memset(buf, 0x00, sizeof(buf));
@@ -150,6 +155,12 @@ char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t brea
 char *sprint_bin(const uint8_t *data, const size_t len) {
 	return sprint_bin_break(data, len, 0);
 }
+
+char *sprint_hex_ascii(const uint8_t *data, const size_t len) {
+	static char buf[1024];
+	memset(buf, 0x00, 1024);
+	return buf;
+}
 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
 {
 	while (len--) {
diff --git a/client/util.h b/client/util.h
index 5ba5eb6a..c57df5c2 100644
--- a/client/util.h
+++ b/client/util.h
@@ -40,6 +40,7 @@ void print_hex(const uint8_t * data, const size_t len);
 char * sprint_hex(const uint8_t * data, const size_t len);
 char * sprint_bin(const uint8_t * data, const size_t len);
 char * sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t breaks);
+char *sprint_hex_ascii(const uint8_t *data, const size_t len);
 
 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest);
 uint64_t bytes_to_num(uint8_t* src, size_t len);
-- 
2.39.5