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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
17 #define RAMFUNC __attribute((long_call, section(".ramfunc")))
18
19 #define BYTEx(x, n) (((x) >> (n * 8)) & 0xff )
20 #define MIN(a, b) (((a) < (b)) ? (a) : (b))
21 #define MAX(a, b) (((a) > (b)) ? (a) : (b))
22
23 #define LED_RED 1
24 #define LED_ORANGE 2
25 #define LED_GREEN 4
26 #define LED_RED2 8
27 #define BUTTON_HOLD 1
28 #define BUTTON_NO_CLICK 0
29 #define BUTTON_SINGLE_CLICK -1
30 #define BUTTON_DOUBLE_CLICK -2
31 #define BUTTON_ERROR -99
32
33 uint32_t SwapBits(uint32_t value, int nrbits);
34 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest);
35 uint64_t bytes_to_num(uint8_t* src, size_t len);
36
37 void SpinDelay(int ms);
38 void SpinDelayUs(int us);
39 void LED(int led, int ms);
40 void LEDsoff();
41 int BUTTON_CLICKED(int ms);
42 int BUTTON_HELD(int ms);
43 void FormatVersionInformation(char *dst, int len, const char *prefix, void *version_information);
44
45 void StartTickCount();
46 uint32_t RAMFUNC GetTickCount();
47
48 void StartCountUS();
49 uint32_t RAMFUNC GetCountUS();
50 uint32_t RAMFUNC GetDeltaCountUS();
51
52 #endif
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