forked from Elron_dev/elbear_arduino_bsp
99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
/*
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Copyright (c) 2011 Arduino. All right reserved.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _WIRING_CONSTANTS_
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#define _WIRING_CONSTANTS_
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#include <stdbool.h>
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#include <stdint.h>
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#define HIGH 0x1
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#define LOW 0x0
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#define INPUT 0x0
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#define OUTPUT 0x1
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#define INPUT_PULLUP 0x2
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#define NC 0xFFFFFFFF // Not connected
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#define PI 3.1415926535897932384626433832795
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#define HALF_PI 1.5707963267948966192313216916398
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#define TWO_PI 6.283185307179586476925286766559
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#define DEG_TO_RAD 0.017453292519943295769236907684886
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#define RAD_TO_DEG 57.295779513082320876798154814105
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#define EULER 2.718281828459045235360287471352
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#define SERIAL 0x0
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#define DISPLAY 0x1
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enum BitOrder
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{
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LSBFIRST = 0,
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MSBFIRST = 1
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};
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// interrupts mode
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#define CHANGE 0x2
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#define FALLING 0x3
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#define RISING 0x4
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#define DEFAULT 1
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#define EXTERNAL 0
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#define NOT_AN_INTERRUPT -1
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// Math
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#ifdef __cplusplus
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#include <algorithm>
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using std::min;
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using std::max;
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#else // C
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#include <stdlib.h>
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#ifndef abs
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#define abs(x) ((x)>0?(x):-(x))
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#endif // abs
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#ifndef min
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#define min(a,b) ((a)<(b)?(a):(b))
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#endif // min
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#ifndef max
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#define max(a,b) ((a)>(b)?(a):(b))
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#endif // max
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#endif // __cplusplus
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#define constrain(amt,low,high) ((amt)<(low)?(low):((amt)>(high)?(high):(amt)))
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#define radians(deg) ((deg)*DEG_TO_RAD)
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#define degrees(rad) ((rad)*RAD_TO_DEG)
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#define sq(x) ((x)*(x))
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// Bits and Bytes
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#define bit(b) (1UL << (b))
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#define lowByte(w) ((uint8_t) ((w) & 0xff))
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#define highByte(w) ((uint8_t) ((w) >> 8))
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#define bitRead(value, bit) (((value) >> (bit)) & 0x01)
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#define bitSet(value, bit) ((value) |= (1UL << (bit)))
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#define bitClear(value, bit) ((value) &= ~(1UL << (bit)))
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#define bitWrite(value, bit, bitvalue) ((bitvalue) ? bitSet((value), (bit)) : bitClear((value), (bit) ))
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// typedefs for compatibility
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typedef unsigned int word;
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typedef bool boolean __attribute__((deprecated));
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typedef uint8_t byte ;
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#endif /* _WIRING_CONSTANTS_ */
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