2021-04-21 23:22:11 +02:00
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#include <avr/io.h>
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#include "button.h"
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2022-01-10 01:52:34 +01:00
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// BUTTON0 PD0
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// BUTTON1 PD1
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// BUTTON2 PD5
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// BUTTON3 PD6
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// BUTTON4 PD7
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// BUTTON5 PC0
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// BUTTON6 PC4 (VFDRESET)
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// BUTTON7 PC1
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2021-04-21 23:22:11 +02:00
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void button_init() {
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2022-01-11 01:23:23 +01:00
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// PD0, PD1, PD5, PD6, PD7, PC0, PC1: input, no pullup (button0..5,7)
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2022-01-10 01:52:34 +01:00
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PORTD &= ~(_BV(PD0) | _BV(PD1) | _BV(PD5) | _BV(PD6) | _BV(PD7));
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DDRD &= ~(_BV(PD0) | _BV(PD1) | _BV(PD5) | _BV(PD6) | _BV(PD7));
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PORTC &= ~(_BV(PC0) | _BV(PC1));
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DDRC &= ~(_BV(PC0) | _BV(PC1));
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2021-04-21 23:22:11 +02:00
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}
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uint8_t button_get() {
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uint8_t pinc = PINC;
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2022-01-10 01:52:34 +01:00
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uint8_t pind = PIND;
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2021-04-21 23:22:11 +02:00
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uint8_t buttons = 0;
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2022-01-10 01:52:34 +01:00
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if (pind & _BV(PD0)) buttons |= _BV(0);
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if (pind & _BV(PD1)) buttons |= _BV(1);
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if (pind & _BV(PD5)) buttons |= _BV(2);
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if (pind & _BV(PD6)) buttons |= _BV(3);
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if (pind & _BV(PD7)) buttons |= _BV(4);
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2021-04-21 23:22:11 +02:00
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if (pinc & _BV(PC0)) buttons |= _BV(5);
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2022-01-10 01:52:34 +01:00
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//if (pinc & _BV(PC4)) buttons |= _BV(6);
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if (pinc & _BV(PC1)) buttons |= _BV(7);
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2021-04-21 23:22:11 +02:00
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return buttons;
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}
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