50 lines
983 B
C
Executable File
50 lines
983 B
C
Executable File
#pragma once
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#include <stdint.h>
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#include <hwo/systick.h>
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struct fifo
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{
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uint8_t size;
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uint8_t pWrite;
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uint8_t pRead;
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uint8_t *pBuffer;
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union
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{
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struct {
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uint8_t blocking:1; // Blocking Mode
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uint8_t irq_rd:1, // fifo_read / fifo_poll called from IRQ (force non blocking)
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irq_wr:1; // fifo_write called from IRQ (force non blocking)
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};
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uint8_t flags;
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};
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uint16_t timeout;
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avrWAIT wtimeout;
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};
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typedef struct fifo FIFO;
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// FIFO Options
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#define FO_BLOCKING (1<<0)
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#define FO_IRQ_RD (1<<1)
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#define FO_IRQ_WR (1<<2)
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FIFO* fifo_alloc (uint8_t size);
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void fifo_write (FIFO* fifo,uint8_t byte);
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uint16_t fifo_read (FIFO* fifo);
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uint16_t fifo_poll (FIFO* fifo);
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uint8_t fifo_avail (FIFO* fifo);
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uint8_t fifo_free (FIFO* fifo);
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void fifo_set_blocking(FIFO* fifo,uint8_t blocking);
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void fifo_set_timeout(FIFO*fifo,uint16_t timeout);
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void fifo_options(FIFO* fifo,uint8_t options);
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uint16_t fifo_read_block (FIFO* fifo,uint8_t* buffer,int maxlen);
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