mirror of
https://github.com/dwhinham/mt32-pi.git
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74 lines
2.1 KiB
C++
74 lines
2.1 KiB
C++
//
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// pisound.h
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//
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// mt32-pi - A baremetal MIDI synthesizer for Raspberry Pi
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// Copyright (C) 2020-2023 Dale Whinham <daleyo@gmail.com>
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//
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// This file is part of mt32-pi.
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//
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// mt32-pi is free software: you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the Free Software
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// Foundation, either version 3 of the License, or (at your option) any later
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// version.
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//
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// mt32-pi is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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// FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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// details.
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//
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// You should have received a copy of the GNU General Public License along with
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// mt32-pi. If not, see <http://www.gnu.org/licenses/>.
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//
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#ifndef _pisound_h
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#define _pisound_h
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#include <circle/gpiomanager.h>
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#include <circle/gpiopin.h>
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#include <circle/spimaster.h>
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#include <circle/types.h>
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class CPisound
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{
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public:
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using TMIDIReceiveHandler = void (*)(const u8* pData, size_t nSize);
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CPisound(CSPIMaster* pSPIMaster, CGPIOManager* pGPIOManager, unsigned nSamplerate);
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~CPisound();
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bool Initialize();
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void RegisterMIDIReceiveHandler(TMIDIReceiveHandler pHandler) { m_pReceiveHandler = pHandler; }
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private:
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u16 Transfer16(u16 nValue) const;
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size_t ReadBytes(u8* pOutBuffer, size_t nSize) const;
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bool ReadInfo();
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void SetOSRPins(unsigned bRatio1, unsigned bRatio2, unsigned bRatio3);
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static constexpr size_t MaxSerialNumberStringLength = 11;
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static constexpr size_t MaxIDStringLength = 25;
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static constexpr size_t MaxVersionStringLength = 6;
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CSPIMaster* m_pSPIMaster;
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unsigned m_nSamplerate;
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CGPIOPin m_SPIReset;
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CGPIOPin m_DataAvailable;
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CGPIOPin m_ADCReset;
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CGPIOPin m_OversamplingRatio0;
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CGPIOPin m_OversamplingRatio1;
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CGPIOPin m_OversamplingRatio2;
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TMIDIReceiveHandler m_pReceiveHandler;
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char m_SerialNumber[MaxSerialNumberStringLength];
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char m_ID[MaxIDStringLength];
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char m_FirmwareVersion[MaxVersionStringLength];
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char m_HardwareVersion[MaxVersionStringLength];
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static void DataAvailableInterruptHandler(void* pUserData);
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};
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#endif
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