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1 //-----------------------------------------------------------------------------

2 // Jonathan Westhues, Aug 2005

4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,

5 // at your option, any later version. See the LICENSE.txt file for the text of

6 // the license.

7 //-----------------------------------------------------------------------------

8 // Utility functions used in many places, not specific to any piece of code.

9 //-----------------------------------------------------------------------------

11 #ifndef __UTIL_H

12 #define __UTIL_H

14 #include <stddef.h>

15 #include <stdint.h>

16 #include "common.h"

18 #define BYTEx(x, n) (((x) >> (n * 8)) & 0xff )

20 #define LED_RED 1

21 #define LED_ORANGE 2

22 #define LED_GREEN 4

23 #define LED_RED2 8

24 #define BUTTON_HOLD 1

25 #define BUTTON_NO_CLICK 0

26 #define BUTTON_SINGLE_CLICK -1

27 #define BUTTON_DOUBLE_CLICK -2

28 #define BUTTON_ERROR -99

 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);

 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);

 void LED(int led, int ms);

39 void LEDsoff();

40 void LEDson();

41 void LEDsinvert();

 int BUTTON_CLICKED(int ms);

 int BUTTON_HELD(int ms);

 void FormatVersionInformation(char *dst, int len, const char *prefix, void *version_information);

46 //iceman's ticks.h

47 #ifndef GET_TICKS

48 # define GET_TICKS GetTicks()

49 #endif

 void SpinDelay(int ms);

 void SpinDelayUs(int us);

54 void StartTickCount();

55 uint32_t RAMFUNC GetTickCount();

57 void StartCountUS();

58 uint32_t RAMFUNC GetCountUS();

59 uint32_t RAMFUNC GetDeltaCountUS();

61 void StartCountSspClk();

 void ResetSspClk(void);

63 uint32_t RAMFUNC GetCountSspClk();

 extern void StartTicks(void);

 extern uint32_t GetTicks(void);

 extern void WaitTicks(uint32_t ticks);

 extern void WaitUS(uint16_t us);

 extern void WaitMS(uint16_t ms);

70 extern void ResetTicks();

 extern void ResetTimer(AT91PS_TC timer);

 extern void StopTicks(void);

73 // end iceman's ticks.h

75 uint32_t prand();

77 #endif