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

2 // Jonathan Westhues, Aug 2005

3 //

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"

17 #include "at91sam7s512.h"

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

21 #define LED_RED 1

22 #define LED_ORANGE 2

23 #define LED_GREEN 4

24 #define LED_RED2 8

26 #define BUTTON_HOLD 1

27 #define BUTTON_NO_CLICK 0

28 #define BUTTON_SINGLE_CLICK -1

29 #define BUTTON_DOUBLE_CLICK -2

30 #define BUTTON_ERROR -99

32 #define REV8(x) ((((x)>>7)&1)|((((x)>>6)&1)<<1)|((((x)>>5)&1)<<2)|((((x)>>4)&1)<<3)|((((x)>>3)&1)<<4)|((((x)>>2)&1)<<5)|((((x)>>1)&1)<<6)|(((x)&1)<<7))

33 #define REV16(x) (REV8(x) | (REV8 (x >> 8) << 8))

34 #define REV32(x) (REV16(x) | (REV16(x >> 16) << 16))

35 #define REV64(x) (REV32(x) | (REV32(x >> 32) << 32))

 extern void print_result(char *name, uint8_t *buf, size_t len);

 extern size_t nbytes(size_t nbits);

 extern uint32_t SwapBits(uint32_t value, int nrbits);

 extern void num_to_bytes(uint64_t n, size_t len, uint8_t* dest);

 extern uint64_t bytes_to_num(uint8_t* src, size_t len);

 extern void rol(uint8_t *data, const size_t len);

 extern void lsl (uint8_t *data, size_t len);

 extern void LED(int led, int ms);

46 extern void LEDsoff();

47 extern void LEDson();

48 extern void LEDsinvert();

 extern int BUTTON_CLICKED(int ms);

 extern int BUTTON_HELD(int ms);

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

53 //iceman's ticks.h

54 #ifndef GET_TICKS

55 # define GET_TICKS GetTicks()

56 #endif

 extern void SpinDelay(int ms);

 extern void SpinDelayUs(int us);

61 extern void StartTickCount();

62 extern uint32_t RAMFUNC GetTickCount();

64 extern void StartCountUS();

65 extern uint32_t RAMFUNC GetCountUS();

66 extern uint32_t RAMFUNC GetDeltaCountUS();

68 extern void StartCountSspClk();

 extern void ResetSspClk(void);

70 extern uint32_t 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);

77 extern void ResetTicks();

 extern void ResetTimer(AT91PS_TC timer);

 extern void StopTicks(void);

80 // end iceman's ticks.h

82 extern uint32_t prand();

84 #endif