107 lines
2.0 KiB
C
107 lines
2.0 KiB
C
#ifndef IO_H
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#define IO_H
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#include <stdbool.h>
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#include <avr/io.h>
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/*
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* Macros
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*/
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#define PIN(x) (*(&x - 2)) // Address Of Data Direction Register Of Port x
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#define DDR(x) (*(&x - 1)) // Address Of Input Register Of Port x
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/*
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* Outputs
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*/
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#define PORT_BOLZEN PORTB
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#define PIN_BOLZEN PB0
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#define PORT_SCHNAPPER PORTB
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#define PIN_SCHNAPPER PB1
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#define PORT_STATUS PORTB
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#define PIN_STATUS PB2
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/*
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* Inputs
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*/
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#define PORT_BUTTON_LOCK PORTD
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#define PIN_BUTTON_LOCK PD2
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#define PORT_BUTTON_UNLOCK PORTD
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#define PIN_BUTTON_UNLOCK PD3
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#define PORT_EMERGENCY_UNLOCK PORTD
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#define PIN_EMERGENCY_UNLOCK PD4
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static inline bool is_emergency_unlock(void)
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{
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return !(PIN(PORT_EMERGENCY_UNLOCK) & (1<<PIN_EMERGENCY_UNLOCK));
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}
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static inline bool is_button_unlock(void)
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{
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return !(PIN(PORT_BUTTON_UNLOCK) & (1<<PIN_BUTTON_UNLOCK));
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}
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static inline bool is_button_lock(void)
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{
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return !(PIN(PORT_BUTTON_LOCK) & (1<<PIN_BUTTON_LOCK));
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}
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static inline void schnapper_off(void)
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{
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PORT_SCHNAPPER &= ~(1<<PIN_SCHNAPPER);
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}
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static inline void schnapper_on(void)
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{
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PORT_SCHNAPPER |= (1<<PIN_SCHNAPPER);
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}
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static inline void bolzen_off(void)
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{
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PORT_BOLZEN &= ~(1<<PIN_BOLZEN);
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}
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static inline void bolzen_on(void)
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{
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PORT_BOLZEN |= (1<<PIN_BOLZEN);
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}
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static inline void status_off(void)
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{
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PORT_STATUS &= ~(1<<PIN_STATUS);
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}
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static inline void status_on(void)
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{
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PORT_STATUS |= (1<<PIN_STATUS);
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}
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static inline void io_init(void)
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{
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// Set output directions
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DDR(PORT_SCHNAPPER) |= (1<<PIN_SCHNAPPER);
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schnapper_off();
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DDR(PORT_SCHNAPPER) |= (1<<PIN_BOLZEN);
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bolzen_off();
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DDR(PORT_STATUS) |= (1<<PIN_STATUS);
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status_off();
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// Set input directions and activate pull-ups
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DDR(PORT_BUTTON_UNLOCK) &= ~(1<<PIN_BUTTON_UNLOCK);
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PORT_BUTTON_UNLOCK |= (1<<PIN_BUTTON_UNLOCK);
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DDR(PORT_BUTTON_LOCK) &= ~(1<<PIN_BUTTON_LOCK);
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PORT_BUTTON_LOCK |= (1<<PIN_BUTTON_LOCK);
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DDR(PORT_EMERGENCY_UNLOCK) &= ~(1<<PIN_EMERGENCY_UNLOCK);
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PORT_EMERGENCY_UNLOCK |= (1<<PIN_EMERGENCY_UNLOCK);
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}
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#endif
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