mirror of https://github.com/g4klx/MMDVM.git
Add missing file
This commit is contained in:
Geoffrey Merck
parent
05775f0bfa
commit
61a69d8536
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/*
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* Copyright (C) 2020 by Jonathan Naylor G4KLX
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* Copyright (C) 2020 by Geoffrey Merck F4FXL - KC3FRA
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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 2 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, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "RingBuffer.h"
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template <typename TDATATYPE> CRingBuffer<TDATATYPE>::CRingBuffer(uint16_t length) :
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m_length(length),
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m_head(0U),
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m_tail(0U),
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m_full(false),
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m_overflow(false)
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{
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m_buffer = new TDATATYPE[length];
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}
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template <typename TDATATYPE> uint16_t CRingBuffer<TDATATYPE>::getSpace() const
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{
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uint16_t n = 0U;
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if (m_tail == m_head)
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n = m_full ? 0U : m_length;
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else if (m_tail < m_head)
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n = m_length - m_head + m_tail;
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else
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n = m_tail - m_head;
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if (n > m_length)
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n = 0U;
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return n;
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}
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template <typename TDATATYPE> uint16_t CRingBuffer<TDATATYPE>::getData() const
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{
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if (m_tail == m_head)
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return m_full ? m_length : 0U;
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else if (m_tail < m_head)
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return m_head - m_tail;
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else
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return m_length - m_tail + m_head;
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}
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template <typename TDATATYPE> bool CRingBuffer<TDATATYPE>::put(TDATATYPE sample)
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{
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if (m_full) {
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m_overflow = true;
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return false;
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}
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m_buffer[m_head] = sample;
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m_head++;
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if (m_head >= m_length)
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m_head = 0U;
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if (m_head == m_tail)
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m_full = true;
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return true;
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}
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template <typename TDATATYPE> TDATATYPE CRingBuffer<TDATATYPE>::peek() const
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{
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return m_buffer[m_tail];
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}
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template <typename TDATATYPE> bool CRingBuffer<TDATATYPE>::get(TDATATYPE& sample)
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{
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if (m_head == m_tail && !m_full)
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return false;
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sample = m_buffer[m_tail];
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m_full = false;
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m_tail++;
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if (m_tail >= m_length)
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m_tail = 0U;
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return true;
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}
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template <typename TDATATYPE> bool CRingBuffer<TDATATYPE>::hasOverflowed()
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{
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bool overflow = m_overflow;
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m_overflow = false;
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return overflow;
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}
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template <typename TDATATYPE> void CRingBuffer<TDATATYPE>::reset()
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{
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m_head = 0U;
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m_tail = 0U;
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m_full = false;
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m_overflow = false;
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}
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//Add here any declarations you need
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template class CRingBuffer<uint8_t>;
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template class CRingBuffer<q15_t>;
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template class CRingBuffer<uint16_t>;
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@ -0,0 +1,77 @@
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/*
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* Copyright (C) 2020 by Jonathan Naylor G4KLX
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* Copyright (C) 2020 by Geoffrey Merck F4FXL - KC3FRA
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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 2 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, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#if !defined(RINGBUFFER_H)
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#define RINGBUFFER_H
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#if defined(STM32F4XX)
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#include "stm32f4xx.h"
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#elif defined(STM32F7XX)
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#include "stm32f7xx.h"
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#elif defined(STM32F105xC)
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#include "stm32f1xx.h"
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#include <cstddef>
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#else
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#include <Arduino.h>
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#endif
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#if defined(__SAM3X8E__) || defined(STM32F105xC)
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#define ARM_MATH_CM3
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#elif defined(STM32F7XX)
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#define ARM_MATH_CM7
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#elif defined(STM32F4XX) || defined(__MK20DX256__) || defined(__MK64FX512__) || defined(__MK66FX1M0__)
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#define ARM_MATH_CM4
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#else
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#error "Unknown processor type"
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#endif
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#include <arm_math.h>
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template <typename TDATATYPE>
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class CRingBuffer {
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public:
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CRingBuffer(uint16_t length);
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uint16_t getSpace() const;
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uint16_t getData() const;
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bool put(TDATATYPE sample);
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bool get(TDATATYPE& sample);
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TDATATYPE peek() const;
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bool hasOverflowed();
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void reset();
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private:
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uint16_t m_length;
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volatile TDATATYPE* m_buffer;
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volatile uint16_t m_head;
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volatile uint16_t m_tail;
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volatile bool m_full;
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bool m_overflow;
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};
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#endif
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