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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 //-----------------------------------------------------------------------------
10
11 #ifndef UTIL_H__
12 #define UTIL_H__
13
14 #include <stddef.h>
15 #include <stdint.h>
16 #include "common.h"
17 #include "at91sam7s512.h"
18
19 #define BYTEx(x, n) (((x) >> (n * 8)) & 0xff )
20
21 #define LED_RED 1
22 #define LED_ORANGE 2
23 #define LED_GREEN 4
24 #define LED_RED2 8
25
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
31
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))
36
37 extern void print_result(char *name, uint8_t *buf, size_t len);
38 extern size_t nbytes(size_t nbits);
39 extern uint32_t SwapBits(uint32_t value, int nrbits);
40 extern void num_to_bytes(uint64_t n, size_t len, uint8_t* dest);
41 extern uint64_t bytes_to_num(uint8_t* src, size_t len);
42 extern void rol(uint8_t *data, const size_t len);
43 extern void lsl (uint8_t *data, size_t len);
44
45 extern void LED(int led, int ms);
46 extern void LEDsoff();
47 extern void LEDson();
48 extern void LEDsinvert();
49 extern int BUTTON_CLICKED(int ms);
50 extern int BUTTON_HELD(int ms);
51 extern void FormatVersionInformation(char *dst, int len, const char *prefix, void *version_information);
52
53 //iceman's ticks.h
54 #ifndef GET_TICKS
55 # define GET_TICKS GetTicks()
56 #endif
57
58 extern void SpinDelay(int ms);
59 extern void SpinDelayUs(int us);
60
61 extern void StartTickCount();
62 extern uint32_t RAMFUNC GetTickCount();
63
64 extern void StartCountUS();
65 extern uint32_t RAMFUNC GetCountUS();
66 extern uint32_t RAMFUNC GetDeltaCountUS();
67
68 extern void StartCountSspClk();
69 extern void ResetSspClk(void);
70 extern uint32_t GetCountSspClk();
71
72 extern void StartTicks(void);
73 extern uint32_t GetTicks(void);
74 extern void WaitTicks(uint32_t ticks);
75 extern void WaitUS(uint16_t us);
76 extern void WaitMS(uint16_t ms);
77 extern void ResetTicks();
78 extern void ResetTimer(AT91PS_TC timer);
79 extern void StopTicks(void);
80 // end iceman's ticks.h
81
82 extern uint32_t prand();
83
84 #endif
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