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21 lines
521 B
C
21 lines
521 B
C
#pragma once
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#include <stdint.h>
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#include "common/buffers.h"
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extern volatile uint8_t parallel_status;
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extern volatile uint8_t *parallel_tx_fifo;
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extern volatile uint16_t parallel_tx_head;
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extern volatile uint16_t parallel_tx_tail;
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int parallel_tx_empty();
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uint8_t parallel_tx_pop();
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void parallel_tx_push(uint8_t value);
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void parallel_fifo_init();
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#define PARALLEL_BUSY 0b00001000
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#define PARALLEL_PAPEROUT 0b00000100
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#define PARALLEL_SELECT 0b00000010
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#define PARALLEL_ACK 0b00000001
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