forked from haraldwolff/avr-fw-modules
31 lines
566 B
C
Executable File
31 lines
566 B
C
Executable File
#include <hwo/fifo.h>
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#include <sys/atomic.h>
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#include <hwo/threads.h>
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#include <hwo/systick.h>
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/*! \brief Schreiben von Zeichen "byte" in FIFO "fifo"
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*/
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void fifo_write(FIFO* fifo,uint8_t byte)
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{
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wait_async_set(&fifo->wtimeout,fifo->timeout);
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do
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{
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{
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ATOMIC
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if (fifo_free(fifo)>0)
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{
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fifo->pBuffer[fifo->pWrite++] = byte;
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if (fifo->pWrite == fifo->size)
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fifo->pWrite = 0;
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return;
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};
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if (fifo->irq_wr)
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return;
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}
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yield();
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}
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while (fifo->blocking && ((fifo->timeout == -1) || !wait_async_test(&fifo->wtimeout)));
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};
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