50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/*
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* =====================================================================================
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*
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* .d8888b 88888b. .d88b. .d8888b 888d888 8888b. 88888b.d88b.
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* 88K 888 "88b d8P Y8b 88K 888P" "88b 888 "888 "88b
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* "Y8888b. 888 888 88888888 "Y8888b. 888 .d888888 888 888 888
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* X88 888 888 Y8b. X88 888 888 888 888 888 888
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* 88888P' 888 888 "Y8888 88888P' 888 "Y888888 888 888 888
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*
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* www.optixx.org
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*
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*
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* Version: 1.0
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* Created: 07/21/2009 03:32:16 PM
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* Author: david@optixx.org
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*
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* =====================================================================================
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*/
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#include "fifo.h"
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void fifo_init(fifo_t * f, uint8_t * buffer, const uint8_t size)
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{
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f->count = 0;
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f->pread = f->pwrite = buffer;
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f->read2end = f->write2end = f->size = size;
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}
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uint8_t fifo_put(fifo_t * f, const uint8_t data)
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{
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return _inline_fifo_put(f, data);
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}
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uint8_t fifo_get_wait(fifo_t * f)
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{
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while (!f->count);
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return _inline_fifo_get(f);
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}
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int fifo_get_nowait(fifo_t * f)
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{
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if (!f->count)
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return -1;
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return (int) _inline_fifo_get(f);
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}
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