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694b83123a
In to NXDN possible problem on sinc filter anc isinc filter, think they must be recalculated but do not know how to do it. On D-STAR, DMR, C4FM and P25 it work.
48 lines
2.3 KiB
C
48 lines
2.3 KiB
C
/*
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* Copyright (C) 2017 Wojciech Krutnik N0CALL
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* FIFO ring buffer
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* source:
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* http://stackoverflow.com/questions/6822548/correct-way-of-implementing-a-uart-receive-buffer-in-a-small-arm-microcontroller
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* (modified)
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*
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*/
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#if !defined(RINGBUFF_H)
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#define RINGBUFF_H
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#define RINGBUFF_SIZE(ringBuff) (ringBuff.size) /* serial buffer in bytes (power 2) */
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#define RINGBUFF_MASK(ringBuff) (ringBuff.size-1U) /* buffer size mask */
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/* Buffer read / write macros */
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#define RINGBUFF_RESET(ringBuff) (ringBuff).rdIdx = ringBuff.wrIdx = 0
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#define RINGBUFF_WRITE(ringBuff, dataIn) (ringBuff).data[RINGBUFF_MASK(ringBuff) & ringBuff.wrIdx++] = (dataIn)
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#define RINGBUFF_READ(ringBuff) ((ringBuff).data[RINGBUFF_MASK(ringBuff) & ((ringBuff).rdIdx++)])
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#define RINGBUFF_EMPTY(ringBuff) ((ringBuff).rdIdx == (ringBuff).wrIdx)
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#define RINGBUFF_FULL(ringBuff) ((RINGBUFF_MASK(ringBuff) & ringFifo.rdIdx) == (RINGBUFF_MASK(ringBuff) & ringFifo.wrIdx))
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#define RINGBUFF_COUNT(ringBuff) (RINGBUFF_MASK(ringBuff) & ((ringBuff).wrIdx - (ringBuff).rdIdx))
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/* Buffer type */
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#define DECLARE_RINGBUFFER_TYPE(name, _size) \
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typedef struct{ \
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uint32_t size; \
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uint32_t wrIdx; \
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uint32_t rdIdx; \
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uint8_t data[_size]; \
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}name##_t
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#endif
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