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antorcha/fw/io.h
2012-06-20 10:30:40 -03:00

71 lines
1.6 KiB
C

/*
* fw/io.h - I/O helper macros
*
* Written 2012 by Werner Almesberger
* Copyright 2012 Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#ifndef IO_H
#define IO_H
#include <avr/io.h>
#define LED_A1 C, 0
#define LED_A2 C, 1
#define LED_A3 C, 2
#define LED_A4 C, 3
#define LED_A5 C, 4
#define LED_A6 C, 5
#define LED_A7 D, 0
#define LED_A8 D, 1
#define LED_B1 D, 2
#define LED_B2 D, 3
#define LED_B3 D, 4
#define LED_B4 B, 6
#define LED_B5 B, 7
#define LED_B6 D, 5
#define LED_B7 D, 6
#define LED_B8 D, 7
#define RF_SCLK B, 5
#define RF_MISO B, 4
#define RF_MOSI B, 3
#define RF_nSS B, 2 /* called nSS in schematics */
#define RF_IRQ B, 1
#define RF_nRST B, 0
#define __SET(port, bit) PORT##port |= 1 << (bit)
#define __CLR(port, bit) PORT##port &= ~(1 << (bit))
#define __OUT(port, bit) DDR##port |= 1 << (bit)
#define __IN(port, bit) DDR##port &= ~(1 << (bit))
#define __PIN(port, bit) ((PIN##port >> (bit)) & 1)
#define SET(...) __SET(__VA_ARGS__)
#define CLR(...) __CLR(__VA_ARGS__)
#define OUT(...) __OUT(__VA_ARGS__)
#define IN(...) __IN(__VA_ARGS__)
#define PIN(...) __PIN(__VA_ARGS__)
#define __SEL_BB(v) (v)
#define __SEL_CC(v) (v)
#define __SEL_DD(v) (v)
#define __SEL_BC(v) (0)
#define __SEL_BD(v) (0)
#define __SEL_CB(v) (0)
#define __SEL_CD(v) (0)
#define __SEL_DB(v) (0)
#define __SEL_DC(v) (0)
#define __MASK(sel, port, bit) __SEL_##sel##port(1 << (bit))
#define MASK(...) __MASK(__VA_ARGS__)
#endif /* IO_H */