CHG: updated some comments. I still think I don't understand this code

[proxmark3-svn] / armsrc / util.h

diff --git a/armsrc/util.h b/armsrc/util.h
index 621f3fe533da2da316ec659e5d704e9f1ff7f147..d323529226e71993d9518e2a1dd97264a1b30d1f 100644 (file)
--- a/armsrc/util.h
+++ b/armsrc/util.h
@@ -1,8 +1,26 @@
+//-----------------------------------------------------------------------------
+// Jonathan Westhues, Aug 2005
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// Utility functions used in many places, not specific to any piece of code.
+//-----------------------------------------------------------------------------
+
 #ifndef __UTIL_H
 #define __UTIL_H
 
 #include <stddef.h>
 #include <stdint.h>
+#include "common.h"
+#include "string.h"
+#include "apps.h"
+#include "BigBuf.h"
+#include "proxmark3.h"
+#include "ticks.h"
+
+#define BYTEx(x, n) (((x) >> (n * 8)) & 0xff )
 
 #define LED_RED 1
 #define LED_ORANGE 2
@@ -13,20 +31,31 @@
 #define BUTTON_SINGLE_CLICK -1
 #define BUTTON_DOUBLE_CLICK -2
 #define BUTTON_ERROR -99
-int strlen(const char *str);
-void *memcpy(void *dest, const void *src, int len);
-void *memset(void *dest, int c, int len);
-int memcmp(const void *av, const void *bv, int len);
-char *strncat(char *dest, const char *src, unsigned int n);
+
+#ifndef BSWAP_16
+# define BSWAP_16(x) ((( ((x) & 0xFF00 ) >> 8))| ( (((x) & 0x00FF) << 8)))
+#endif
+#ifndef BITMASK
+# define BITMASK(X) (1 << (X))
+#endif
+#ifndef ARRAYLEN
+# define ARRAYLEN(x) (sizeof(x)/sizeof((x)[0]))
+#endif
+
+void print_result(char *name, uint8_t *buf, size_t len);
+size_t nbytes(size_t nbits);
+uint32_t SwapBits(uint32_t value, int nrbits);
+uint32_t reflect(uint32_t v, int b);
 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest);
 uint64_t bytes_to_num(uint8_t* src, size_t len);
+void rol(uint8_t *data, const size_t len);
+void lsl (uint8_t *data, size_t len);
+int32_t le24toh (uint8_t data[3]);
 
-void SpinDelay(int ms);
-void SpinDelayUs(int us);
 void LED(int led, int ms);
 void LEDsoff();
 int BUTTON_CLICKED(int ms);
 int BUTTON_HELD(int ms);
 void FormatVersionInformation(char *dst, int len, const char *prefix, void *version_information);
 
-#endif
\ No newline at end of file
+#endif