mirror of https://github.com/probonopd/MiniDexed
Restructure code and add new features (#37)
* Make synth parameters configurable * Add class CConfig, which holds the configuration * Add template config file minidexed.ini * Register panic handler in CKernel to allow to display assertions * Fix: Performance timer did not show correct percent value with HDMI * Add class CDexedAdapter Some Dexed methods require to be guarded from being interrupted by other Dexed calls. This is done in the class CDexedAdapter. * Add class CUserInterface The user interface should be implemented here. As a start it supports showing the program number and name on the LCD display. The LCD output is buffered, so that LCD writes from an IRQ handler are possible. * Move MIDI handling from CMiniDexed to specific classes * CMIDIDevice is the generic MIDI handler * CMIDIKeyboard handles USB audio class MIDI devices * CSerialMIDIDevice handles the serial MIDI device * Now all MIDI inputs can work simultaneous * Program change and bank select work with serial MIDI * Add headers to all files * Include voices.c in sysexfileloader.cpp * Cleanup Makefile * Support headless operation on Raspberry Pi 4 Some code cleanup for src/kernel.* * Code cleanup for src/minidexed.* Move implementation of constructors to minidexed.cpp Reorder member variables * Support multiple USB MIDI inputs at once * Maximum 2 inputs on Raspberry Pi 1-3 * Maximum 4 inputs on Raspberry Pi 4 * Suppress frequent messages in MIDI dump * Use minidexed.txt * Document `SoundDevice` in `minidexed.ini` Co-authored-by: probonopd <probonopd@users.noreply.github.com>pull/40/head
Rene Stange
2 years ago
committed by
GitHub
parent
6baba1eb7e
commit
8be0781b49
@ -0,0 +1,132 @@ |
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//
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// config.cpp
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//
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// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
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// Copyright (C) 2022 The MiniDexed Team
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//
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// Original author of this class:
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// R. Stange <rsta2@o2online.de>
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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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#include "config.h" |
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CConfig::CConfig (FATFS *pFileSystem) |
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: m_Properties ("minidexed.ini", pFileSystem) |
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{ |
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} |
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CConfig::~CConfig (void) |
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{ |
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} |
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void CConfig::Load (void) |
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{ |
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m_Properties.Load (); |
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m_SoundDevice = m_Properties.GetString ("SoundDevice", "pwm"); |
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m_nSampleRate = m_Properties.GetNumber ("SampleRate", 48000); |
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m_nChunkSize = m_Properties.GetNumber ("ChunkSize", m_SoundDevice == "hdmi" ? 384*6 : 256); |
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m_nDACI2CAddress = m_Properties.GetNumber ("DACI2CAddress", 0); |
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m_nMIDIBaudRate = m_Properties.GetNumber ("MIDIBaudRate", 31250); |
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m_bLCDEnabled = m_Properties.GetNumber ("LCDEnabled", 0) != 0; |
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m_nLCDPinEnable = m_Properties.GetNumber ("LCDPinEnable", 17); |
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m_nLCDPinRegisterSelect = m_Properties.GetNumber ("LCDPinRegisterSelect", 18); |
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m_nLCDPinReadWrite = m_Properties.GetNumber ("LCDPinReadWrite", 19); |
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m_nLCDPinData4 = m_Properties.GetNumber ("LCDPinData4", 22); |
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m_nLCDPinData5 = m_Properties.GetNumber ("LCDPinData5", 23); |
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m_nLCDPinData6 = m_Properties.GetNumber ("LCDPinData6", 24); |
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m_nLCDPinData7 = m_Properties.GetNumber ("LCDPinData7", 25); |
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m_bMIDIDumpEnabled = m_Properties.GetNumber ("MIDIDumpEnabled", 0) != 0; |
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m_bProfileEnabled = m_Properties.GetNumber ("ProfileEnabled", 0) != 0; |
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} |
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const char *CConfig::GetSoundDevice (void) const |
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{ |
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return m_SoundDevice.c_str (); |
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} |
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unsigned CConfig::GetSampleRate (void) const |
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{ |
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return m_nSampleRate; |
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} |
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unsigned CConfig::GetChunkSize (void) const |
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{ |
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return m_nChunkSize; |
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} |
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unsigned CConfig::GetDACI2CAddress (void) const |
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{ |
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return m_nDACI2CAddress; |
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} |
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unsigned CConfig::GetMIDIBaudRate (void) const |
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{ |
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return m_nMIDIBaudRate; |
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} |
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bool CConfig::GetLCDEnabled (void) const |
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{ |
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return m_bLCDEnabled; |
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} |
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unsigned CConfig::GetLCDPinEnable (void) const |
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{ |
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return m_nLCDPinEnable; |
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} |
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unsigned CConfig::GetLCDPinRegisterSelect (void) const |
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{ |
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return m_nLCDPinRegisterSelect; |
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} |
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unsigned CConfig::GetLCDPinReadWrite (void) const |
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{ |
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return m_nLCDPinReadWrite; |
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} |
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unsigned CConfig::GetLCDPinData4 (void) const |
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{ |
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return m_nLCDPinData4; |
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} |
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unsigned CConfig::GetLCDPinData5 (void) const |
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{ |
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return m_nLCDPinData5; |
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} |
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unsigned CConfig::GetLCDPinData6 (void) const |
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{ |
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return m_nLCDPinData6; |
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} |
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unsigned CConfig::GetLCDPinData7 (void) const |
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{ |
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return m_nLCDPinData7; |
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} |
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bool CConfig::GetMIDIDumpEnabled (void) const |
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{ |
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return m_bMIDIDumpEnabled; |
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} |
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bool CConfig::GetProfileEnabled (void) const |
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{ |
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return m_bProfileEnabled; |
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} |
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@ -0,0 +1,97 @@ |
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//
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// config.h
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//
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// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
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// Copyright (C) 2022 The MiniDexed Team
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//
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// Original author of this class:
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// R. Stange <rsta2@o2online.de>
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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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#ifndef _config_h |
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#define _config_h |
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#include <fatfs/ff.h> |
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#include <Properties/propertiesfatfsfile.h> |
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#include <string> |
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class CConfig // Configuration for MiniDexed
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{ |
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public: |
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static const unsigned MaxNotes = 16; // polyphony
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#if RASPPI <= 3 |
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static const unsigned MaxUSBMIDIDevices = 2; |
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#else |
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static const unsigned MaxUSBMIDIDevices = 4; |
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#endif |
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static const unsigned LCDColumns = 16; // HD44780 LCD
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static const unsigned LCDRows = 2; |
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public: |
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CConfig (FATFS *pFileSystem); |
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~CConfig (void); |
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void Load (void); |
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// Sound device
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const char *GetSoundDevice (void) const; |
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unsigned GetSampleRate (void) const; |
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unsigned GetChunkSize (void) const; |
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unsigned GetDACI2CAddress (void) const; // 0 for auto probing
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// MIDI
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unsigned GetMIDIBaudRate (void) const; |
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// HD44780 LCD
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// GPIO pin numbers are chip numbers, not header positions
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bool GetLCDEnabled (void) const; |
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unsigned GetLCDPinEnable (void) const; |
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unsigned GetLCDPinRegisterSelect (void) const; |
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unsigned GetLCDPinReadWrite (void) const; // set to 0 if not connected
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unsigned GetLCDPinData4 (void) const; |
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unsigned GetLCDPinData5 (void) const; |
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unsigned GetLCDPinData6 (void) const; |
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unsigned GetLCDPinData7 (void) const; |
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// Debug
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bool GetMIDIDumpEnabled (void) const; |
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bool GetProfileEnabled (void) const; |
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private: |
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CPropertiesFatFsFile m_Properties; |
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std::string m_SoundDevice; |
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unsigned m_nSampleRate; |
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unsigned m_nChunkSize; |
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unsigned m_nDACI2CAddress; |
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unsigned m_nMIDIBaudRate; |
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bool m_bLCDEnabled; |
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unsigned m_nLCDPinEnable; |
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unsigned m_nLCDPinRegisterSelect; |
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unsigned m_nLCDPinReadWrite; |
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unsigned m_nLCDPinData4; |
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unsigned m_nLCDPinData5; |
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unsigned m_nLCDPinData6; |
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unsigned m_nLCDPinData7; |
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bool m_bMIDIDumpEnabled; |
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bool m_bProfileEnabled; |
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}; |
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#endif |
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@ -0,0 +1,70 @@ |
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//
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// dexedadapter.h
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//
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// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
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// Copyright (C) 2022 The MiniDexed Team
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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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#ifndef _dexedadapter_h |
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#define _dexedadapter_h |
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#include <synth_dexed.h> |
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#include <circle/spinlock.h> |
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#include <stdint.h> |
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// Some Dexed methods require to be guarded from being interrupted
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// by other Dexed calls. This is done herein.
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class CDexedAdapter : public Dexed |
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{ |
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public: |
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CDexedAdapter (uint8_t maxnotes, int rate) |
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: Dexed (maxnotes, rate) |
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{ |
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} |
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void loadVoiceParameters (uint8_t* data) |
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{ |
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m_SpinLock.Acquire (); |
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Dexed::loadVoiceParameters (data); |
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m_SpinLock.Release (); |
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} |
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void keyup (int16_t pitch) |
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{ |
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m_SpinLock.Acquire (); |
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Dexed::keyup (pitch); |
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m_SpinLock.Release (); |
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} |
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void keydown (int16_t pitch, uint8_t velo) |
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{ |
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m_SpinLock.Acquire (); |
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Dexed::keydown (pitch, velo); |
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m_SpinLock.Release (); |
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} |
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void getSamples (uint16_t n_samples, int16_t* buffer) |
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{ |
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m_SpinLock.Acquire (); |
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Dexed::getSamples (n_samples, buffer); |
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m_SpinLock.Release (); |
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} |
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private: |
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CSpinLock m_SpinLock; |
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}; |
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#endif |
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@ -0,0 +1,150 @@ |
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//
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// mididevice.cpp
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//
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// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
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// Copyright (C) 2022 The MiniDexed Team
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//
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// Original author of this class:
|
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// R. Stange <rsta2@o2online.de>
|
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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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#include "mididevice.h" |
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#include "minidexed.h" |
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#include "config.h" |
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#include <stdio.h> |
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#include <assert.h> |
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#define MIDI_NOTE_OFF 0b1000 |
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#define MIDI_NOTE_ON 0b1001 |
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#define MIDI_AFTERTOUCH 0b1010 // TODO
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#define MIDI_CONTROL_CHANGE 0b1011 |
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#define MIDI_CC_BANK_SELECT_MSB 0 // TODO
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#define MIDI_CC_BANK_SELECT_LSB 32 |
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#define MIDI_PROGRAM_CHANGE 0b1100 |
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#define MIDI_PITCH_BEND 0b1110 |
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#define MIDI_TIMING_CLOCK 0xF8 |
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#define MIDI_ACTIVE_SENSING 0xFE |
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CMIDIDevice::CMIDIDevice (CMiniDexed *pSynthesizer, CConfig *pConfig) |
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: m_pSynthesizer (pSynthesizer), |
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m_pConfig (pConfig) |
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{ |
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} |
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|
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CMIDIDevice::~CMIDIDevice (void) |
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{ |
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m_pSynthesizer = 0; |
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} |
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|
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void CMIDIDevice::MIDIMessageHandler (const u8 *pMessage, size_t nLength, unsigned nCable) |
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{ |
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assert (m_pSynthesizer != 0); |
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|
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// The packet contents are just normal MIDI data - see
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// https://www.midi.org/specifications/item/table-1-summary-of-midi-message
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|
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if (m_pConfig->GetMIDIDumpEnabled ()) |
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{ |
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switch (nLength) |
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{ |
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case 1: |
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if ( pMessage[0] != MIDI_TIMING_CLOCK |
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&& pMessage[0] != MIDI_ACTIVE_SENSING) |
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{ |
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printf ("MIDI %u: %02X\n", nCable, (unsigned) pMessage[0]); |
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} |
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break; |
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|
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case 2: |
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printf ("MIDI %u: %02X %02X\n", nCable, |
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(unsigned) pMessage[0], (unsigned) pMessage[1]); |
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break; |
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|
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case 3: |
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printf ("MIDI %u: %02X %02X %02X\n", nCable, |
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(unsigned) pMessage[0], (unsigned) pMessage[1], |
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(unsigned) pMessage[2]); |
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break; |
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} |
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} |
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|
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if (nLength < 2) |
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{ |
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return; |
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} |
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|
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u8 ucStatus = pMessage[0]; |
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// TODO: u8 ucChannel = ucStatus & 0x0F;
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u8 ucType = ucStatus >> 4; |
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u8 ucKeyNumber = pMessage[1]; |
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u8 ucVelocity = pMessage[2]; |
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|
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switch (ucType) |
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{ |
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case MIDI_NOTE_ON: |
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if (nLength < 3) |
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{ |
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break; |
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} |
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|
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if (ucVelocity > 0) |
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{ |
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if (ucVelocity <= 127) |
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{ |
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m_pSynthesizer->keydown (ucKeyNumber, ucVelocity); |
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} |
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} |
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else |
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{ |
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m_pSynthesizer->keyup (ucKeyNumber); |
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} |
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break; |
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|
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case MIDI_NOTE_OFF: |
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if (nLength < 3) |
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{ |
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break; |
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} |
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|
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m_pSynthesizer->keyup (ucKeyNumber); |
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break; |
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|
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case MIDI_CONTROL_CHANGE: |
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if (nLength < 3) |
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{ |
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break; |
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} |
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|
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switch (pMessage[1]) |
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{ |
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case MIDI_CC_BANK_SELECT_LSB: |
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m_pSynthesizer->BankSelectLSB (pMessage[2]); |
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break; |
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} |
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break; |
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|
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case MIDI_PROGRAM_CHANGE: |
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m_pSynthesizer->ProgramChange (pMessage[1]); |
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break; |
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|
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case MIDI_PITCH_BEND: |
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m_pSynthesizer->setPitchbend (pMessage[1]); |
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break; |
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|
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default: |
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break; |
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} |
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} |
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@ -0,0 +1,45 @@ |
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//
|
||||
// mididevice.h
|
||||
//
|
||||
// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
|
||||
// Copyright (C) 2022 The MiniDexed Team
|
||||
//
|
||||
// Original author of this class:
|
||||
// R. Stange <rsta2@o2online.de>
|
||||
//
|
||||
// This program is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
#ifndef _mididevice_h |
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#define _mididevice_h |
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|
||||
#include "config.h" |
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#include <circle/types.h> |
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|
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class CMiniDexed; |
||||
|
||||
class CMIDIDevice |
||||
{ |
||||
public: |
||||
CMIDIDevice (CMiniDexed *pSynthesizer, CConfig *pConfig); |
||||
~CMIDIDevice (void); |
||||
|
||||
protected: |
||||
void MIDIMessageHandler (const u8 *pMessage, size_t nLength, unsigned nCable = 0); |
||||
|
||||
private: |
||||
CMiniDexed *m_pSynthesizer; |
||||
CConfig *m_pConfig; |
||||
}; |
||||
|
||||
#endif |
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@ -0,0 +1,105 @@ |
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//
|
||||
// midikeyboard.cpp
|
||||
//
|
||||
// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
|
||||
// Copyright (C) 2022 The MiniDexed Team
|
||||
//
|
||||
// Original author of this class:
|
||||
// R. Stange <rsta2@o2online.de>
|
||||
//
|
||||
// This program is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
#include "midikeyboard.h" |
||||
#include <circle/devicenameservice.h> |
||||
#include <assert.h> |
||||
|
||||
CMIDIKeyboard *CMIDIKeyboard::s_pThis[MaxInstances] = {0}; |
||||
|
||||
TMIDIPacketHandler * const CMIDIKeyboard::s_pMIDIPacketHandler[MaxInstances] = |
||||
{ |
||||
MIDIPacketHandler0, |
||||
MIDIPacketHandler1, |
||||
MIDIPacketHandler2, |
||||
MIDIPacketHandler3 |
||||
}; |
||||
|
||||
CMIDIKeyboard::CMIDIKeyboard (CMiniDexed *pSynthesizer, CConfig *pConfig, unsigned nInstance) |
||||
: CMIDIDevice (pSynthesizer, pConfig), |
||||
m_nInstance (nInstance), |
||||
m_pMIDIDevice (0) |
||||
{ |
||||
assert (m_nInstance < MaxInstances); |
||||
s_pThis[m_nInstance] = this; |
||||
|
||||
m_DeviceName.Format ("umidi%u", nInstance+1); |
||||
} |
||||
|
||||
CMIDIKeyboard::~CMIDIKeyboard (void) |
||||
{ |
||||
assert (m_nInstance < MaxInstances); |
||||
s_pThis[m_nInstance] = 0; |
||||
} |
||||
|
||||
void CMIDIKeyboard::Process (boolean bPlugAndPlayUpdated) |
||||
{ |
||||
if (!bPlugAndPlayUpdated) |
||||
{ |
||||
return; |
||||
} |
||||
|
||||
if (m_pMIDIDevice == 0) |
||||
{ |
||||
m_pMIDIDevice = |
||||
(CUSBMIDIDevice *) CDeviceNameService::Get ()->GetDevice (m_DeviceName, FALSE); |
||||
if (m_pMIDIDevice != 0) |
||||
{ |
||||
assert (m_nInstance < MaxInstances); |
||||
m_pMIDIDevice->RegisterPacketHandler (s_pMIDIPacketHandler[m_nInstance]); |
||||
|
||||
m_pMIDIDevice->RegisterRemovedHandler (DeviceRemovedHandler, this); |
||||
} |
||||
} |
||||
} |
||||
|
||||
void CMIDIKeyboard::MIDIPacketHandler0 (unsigned nCable, u8 *pPacket, unsigned nLength) |
||||
{ |
||||
assert (s_pThis[0] != 0); |
||||
s_pThis[0]->MIDIMessageHandler (pPacket, nLength, nCable); |
||||
} |
||||
|
||||
void CMIDIKeyboard::MIDIPacketHandler1 (unsigned nCable, u8 *pPacket, unsigned nLength) |
||||
{ |
||||
assert (s_pThis[1] != 0); |
||||
s_pThis[1]->MIDIMessageHandler (pPacket, nLength, nCable); |
||||
} |
||||
|
||||
void CMIDIKeyboard::MIDIPacketHandler2 (unsigned nCable, u8 *pPacket, unsigned nLength) |
||||
{ |
||||
assert (s_pThis[2] != 0); |
||||
s_pThis[2]->MIDIMessageHandler (pPacket, nLength, nCable); |
||||
} |
||||
|
||||
void CMIDIKeyboard::MIDIPacketHandler3 (unsigned nCable, u8 *pPacket, unsigned nLength) |
||||
{ |
||||
assert (s_pThis[3] != 0); |
||||
s_pThis[3]->MIDIMessageHandler (pPacket, nLength, nCable); |
||||
} |
||||
|
||||
void CMIDIKeyboard::DeviceRemovedHandler (CDevice *pDevice, void *pContext) |
||||
{ |
||||
CMIDIKeyboard *pThis = static_cast<CMIDIKeyboard *> (pContext); |
||||
assert (pThis != 0); |
||||
|
||||
pThis->m_pMIDIDevice = 0; |
||||
} |
||||
@ -0,0 +1,65 @@ |
||||
//
|
||||
// midikeyboard.h
|
||||
//
|
||||
// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
|
||||
// Copyright (C) 2022 The MiniDexed Team
|
||||
//
|
||||
// Original author of this class:
|
||||
// R. Stange <rsta2@o2online.de>
|
||||
//
|
||||
// This program is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
#ifndef _midikeyboard_h |
||||
#define _midikeyboard_h |
||||
|
||||
#include "mididevice.h" |
||||
#include "config.h" |
||||
#include <circle/usb/usbmidi.h> |
||||
#include <circle/device.h> |
||||
#include <circle/string.h> |
||||
#include <circle/types.h> |
||||
|
||||
class CMiniDexed; |
||||
|
||||
class CMIDIKeyboard : public CMIDIDevice |
||||
{ |
||||
public: |
||||
static const unsigned MaxInstances = 4; |
||||
|
||||
public: |
||||
CMIDIKeyboard (CMiniDexed *pSynthesizer, CConfig *pConfig, unsigned nInstance = 0); |
||||
~CMIDIKeyboard (void); |
||||
|
||||
void Process (boolean bPlugAndPlayUpdated); |
||||
|
||||
private: |
||||
static void MIDIPacketHandler0 (unsigned nCable, u8 *pPacket, unsigned nLength); |
||||
static void MIDIPacketHandler1 (unsigned nCable, u8 *pPacket, unsigned nLength); |
||||
static void MIDIPacketHandler2 (unsigned nCable, u8 *pPacket, unsigned nLength); |
||||
static void MIDIPacketHandler3 (unsigned nCable, u8 *pPacket, unsigned nLength); |
||||
|
||||
static void DeviceRemovedHandler (CDevice *pDevice, void *pContext); |
||||
|
||||
private: |
||||
unsigned m_nInstance; |
||||
CString m_DeviceName; |
||||
|
||||
CUSBMIDIDevice * volatile m_pMIDIDevice; |
||||
|
||||
static CMIDIKeyboard *s_pThis[MaxInstances]; |
||||
|
||||
static TMIDIPacketHandler * const s_pMIDIPacketHandler[MaxInstances]; |
||||
}; |
||||
|
||||
#endif |
||||
@ -1,117 +1,104 @@ |
||||
//
|
||||
// minidexed.h
|
||||
//
|
||||
// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
|
||||
// Copyright (C) 2022 The MiniDexed Team
|
||||
//
|
||||
// This program is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
#ifndef _minidexed_h |
||||
#define _minidexed_h |
||||
|
||||
#include <synth_dexed.h> |
||||
#include "dexedadapter.h" |
||||
#include "config.h" |
||||
#include "userinterface.h" |
||||
#include "sysexfileloader.h" |
||||
#include "midikeyboard.h" |
||||
#include "pckeyboard.h" |
||||
#include "serialmididevice.h" |
||||
#include "perftimer.h" |
||||
#include <stdint.h> |
||||
#include <math.h> |
||||
#include <circle/types.h> |
||||
#include <circle/interrupt.h> |
||||
#include <circle/i2cmaster.h> |
||||
#include <circle/usb/usbmidi.h> |
||||
#include <circle/serial.h> |
||||
#include <circle/types.h> |
||||
#include <circle/pwmsoundbasedevice.h> |
||||
#include <circle/i2ssoundbasedevice.h> |
||||
#include <circle/hdmisoundbasedevice.h> |
||||
#include "sysexfileloader.h" |
||||
#include "pckeyboard.h" |
||||
#include <display/hd44780device.h> |
||||
|
||||
#define SAMPLE_RATE 48000 |
||||
class CMiniDexed : public CDexedAdapter |
||||
{ |
||||
public: |
||||
CMiniDexed (CConfig *pConfig, CInterruptSystem *pInterrupt); |
||||
|
||||
#define CHUNK_SIZE (256) |
||||
#define CHUNK_SIZE_HDMI (384 * 6) |
||||
virtual bool Initialize (void); |
||||
|
||||
#define DAC_I2C_ADDRESS 0 // I2C slave address of the DAC (0 for auto probing)
|
||||
void Process (bool bPlugAndPlayUpdated); |
||||
|
||||
// HD44780 LCD configuration
|
||||
#define COLUMNS 16 |
||||
#define ROWS 2 |
||||
// GPIO pins (Brcm numbering)
|
||||
#define EN_PIN 17 // Enable
|
||||
#define RS_PIN 18 // Register Select
|
||||
#define RW_PIN 19 // Read/Write (set to 0 if not connected)
|
||||
#define D4_PIN 22 // Data 4
|
||||
#define D5_PIN 23 // Data 5
|
||||
#define D6_PIN 24 // Data 6
|
||||
#define D7_PIN 25 // Data 7
|
||||
void BankSelectLSB (unsigned nBankLSB); |
||||
void ProgramChange (unsigned nProgram); |
||||
|
||||
class CMiniDexed : public Dexed |
||||
{ |
||||
public: |
||||
CMiniDexed(uint8_t max_notes, uint16_t sample_rate, CInterruptSystem *pInterrupt) |
||||
: Dexed(max_notes,(int)sample_rate), |
||||
m_pMIDIDevice (0), |
||||
m_PCKeyboard (this), |
||||
m_Serial (pInterrupt, TRUE), |
||||
m_bUseSerial (FALSE), |
||||
m_nSerialState (0), |
||||
m_LCD (COLUMNS, ROWS, D4_PIN, D5_PIN, D6_PIN, D7_PIN, EN_PIN, RS_PIN, RW_PIN) |
||||
{ |
||||
s_pThis = this; |
||||
}; |
||||
|
||||
virtual bool Initialize (void); |
||||
void Process(boolean bPlugAndPlayUpdated); |
||||
private: |
||||
void LCDWrite (const char *pString); |
||||
protected: |
||||
static void MIDIPacketHandler (unsigned nCable, u8 *pPacket, unsigned nLength); |
||||
static void KeyStatusHandlerRaw (unsigned char ucModifiers, const unsigned char RawKeys[6]); |
||||
static void ChangeProgram(unsigned program); |
||||
static void USBDeviceRemovedHandler (CDevice *pDevice, void *pContext); |
||||
CUSBMIDIDevice * volatile m_pMIDIDevice; |
||||
CPCKeyboard m_PCKeyboard; |
||||
CSerialDevice m_Serial; |
||||
boolean m_bUseSerial; |
||||
unsigned m_nSerialState; |
||||
u8 m_SerialMessage[3]; |
||||
CSysExFileLoader m_SysExFileLoader; |
||||
private: |
||||
CHD44780Device m_LCD; |
||||
|
||||
static CMiniDexed *s_pThis; |
||||
private: |
||||
CConfig *m_pConfig; |
||||
|
||||
CUserInterface m_UI; |
||||
CSysExFileLoader m_SysExFileLoader; |
||||
|
||||
CMIDIKeyboard *m_pMIDIKeyboard[CConfig::MaxUSBMIDIDevices]; |
||||
CPCKeyboard m_PCKeyboard; |
||||
CSerialMIDIDevice m_SerialMIDI; |
||||
bool m_bUseSerial; |
||||
|
||||
protected: |
||||
CPerformanceTimer m_GetChunkTimer; |
||||
bool m_bProfileEnabled; |
||||
}; |
||||
|
||||
//// PWM //////////////////////////////////////////////////////////////////////
|
||||
|
||||
class CMiniDexedPWM : public CMiniDexed, public CPWMSoundBaseDevice |
||||
{ |
||||
public: |
||||
CMiniDexedPWM(uint8_t max_notes, uint16_t sample_rate, CInterruptSystem *pInterrupt) |
||||
: CMiniDexed(max_notes,(int)sample_rate, pInterrupt), |
||||
CPWMSoundBaseDevice (pInterrupt, sample_rate, CHUNK_SIZE) |
||||
{ |
||||
} |
||||
|
||||
bool Initialize (void); |
||||
unsigned GetChunk (u32 *pBuffer, unsigned nChunkSize); |
||||
public: |
||||
CMiniDexedPWM (CConfig *pConfig, CInterruptSystem *pInterrupt); |
||||
|
||||
bool Initialize (void); |
||||
|
||||
unsigned GetChunk (u32 *pBuffer, unsigned nChunkSize); |
||||
}; |
||||
|
||||
//// I2S //////////////////////////////////////////////////////////////////////
|
||||
|
||||
class CMiniDexedI2S : public CMiniDexed, public CI2SSoundBaseDevice |
||||
{ |
||||
public: |
||||
CMiniDexedI2S(uint8_t max_notes, uint16_t sample_rate, CInterruptSystem *pInterrupt, CI2CMaster *pI2CMaster) |
||||
: CMiniDexed(max_notes,(int)sample_rate, pInterrupt), |
||||
CI2SSoundBaseDevice (pInterrupt, sample_rate, CHUNK_SIZE, FALSE, pI2CMaster, DAC_I2C_ADDRESS) |
||||
{ |
||||
} |
||||
|
||||
bool Initialize (void); |
||||
unsigned GetChunk (u32 *pBuffer, unsigned nChunkSize); |
||||
public: |
||||
CMiniDexedI2S (CConfig *pConfig, CInterruptSystem *pInterrupt, |
||||
CI2CMaster *pI2CMaster); |
||||
|
||||
bool Initialize (void); |
||||
|
||||
unsigned GetChunk (u32 *pBuffer, unsigned nChunkSize); |
||||
}; |
||||
|
||||
//// HDMI /////////////////////////////////////////////////////////////////////
|
||||
|
||||
class CMiniDexedHDMI : public CMiniDexed, public CHDMISoundBaseDevice |
||||
{ |
||||
public: |
||||
CMiniDexedHDMI(uint8_t max_notes, uint16_t sample_rate, CInterruptSystem *pInterrupt) |
||||
: CMiniDexed(max_notes,(int)sample_rate, pInterrupt), |
||||
CHDMISoundBaseDevice (pInterrupt, sample_rate, CHUNK_SIZE_HDMI) |
||||
{ |
||||
} |
||||
|
||||
bool Initialize (void); |
||||
unsigned GetChunk (u32 *pBuffer, unsigned nChunkSize); |
||||
public: |
||||
CMiniDexedHDMI (CConfig *pConfig, CInterruptSystem *pInterrupt); |
||||
|
||||
bool Initialize (void); |
||||
|
||||
unsigned GetChunk (u32 *pBuffer, unsigned nChunkSize); |
||||
}; |
||||
|
||||
#endif |
||||
|
||||
@ -0,0 +1,26 @@ |
||||
# |
||||
# minidexed.ini |
||||
# |
||||
|
||||
# Sound device |
||||
SoundDevice=pwm |
||||
SampleRate=48000 |
||||
#ChunkSize=256 |
||||
DACI2CAddress=0 |
||||
|
||||
# MIDI |
||||
MIDIBaudRate=31250 |
||||
|
||||
# HD44780 LCD |
||||
LCDEnabled=1 |
||||
LCDPinEnable=17 |
||||
LCDPinRegisterSelect=18 |
||||
LCDPinReadWrite=19 |
||||
LCDPinData4=22 |
||||
LCDPinData5=23 |
||||
LCDPinData6=24 |
||||
LCDPinData7=25 |
||||
|
||||
# Debug |
||||
MIDIDumpEnabled=1 |
||||
ProfileEnabled=1 |
||||
@ -0,0 +1,98 @@ |
||||
//
|
||||
// serialmididevice.cpp
|
||||
//
|
||||
// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
|
||||
// Copyright (C) 2022 The MiniDexed Team
|
||||
//
|
||||
// Original author of this class:
|
||||
// R. Stange <rsta2@o2online.de>
|
||||
//
|
||||
// This program is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
#include "serialmididevice.h" |
||||
#include <assert.h> |
||||
|
||||
CSerialMIDIDevice::CSerialMIDIDevice (CMiniDexed *pSynthesizer, CInterruptSystem *pInterrupt, |
||||
CConfig *pConfig) |
||||
: CMIDIDevice (pSynthesizer, pConfig), |
||||
m_pConfig (pConfig), |
||||
m_Serial (pInterrupt, TRUE), |
||||
m_nSerialState (0) |
||||
{ |
||||
} |
||||
|
||||
CSerialMIDIDevice::~CSerialMIDIDevice (void) |
||||
{ |
||||
m_nSerialState = 255; |
||||
} |
||||
|
||||
boolean CSerialMIDIDevice::Initialize (void) |
||||
{ |
||||
assert (m_pConfig); |
||||
return m_Serial.Initialize (m_pConfig->GetMIDIBaudRate ()); |
||||
} |
||||
|
||||
void CSerialMIDIDevice::Process (void) |
||||
{ |
||||
// Read serial MIDI data
|
||||
u8 Buffer[100]; |
||||
int nResult = m_Serial.Read (Buffer, sizeof Buffer); |
||||
if (nResult <= 0) |
||||
{ |
||||
return; |
||||
} |
||||
|
||||
// Process MIDI messages
|
||||
// See: https://www.midi.org/specifications/item/table-1-summary-of-midi-message
|
||||
for (int i = 0; i < nResult; i++) |
||||
{ |
||||
u8 uchData = Buffer[i]; |
||||
|
||||
switch (m_nSerialState) |
||||
{ |
||||
case 0: |
||||
MIDIRestart: |
||||
if ( (uchData & 0x80) == 0x80 // status byte, all channels
|
||||
&& (uchData & 0xF0) != 0xF0) // ignore system messages
|
||||
{ |
||||
m_SerialMessage[m_nSerialState++] = uchData; |
||||
} |
||||
break; |
||||
|
||||
case 1: |
||||
case 2: |
||||
if (uchData & 0x80) // got status when parameter expected
|
||||
{ |
||||
m_nSerialState = 0; |
||||
|
||||
goto MIDIRestart; |
||||
} |
||||
|
||||
m_SerialMessage[m_nSerialState++] = uchData; |
||||
|
||||
if ( (m_SerialMessage[0] & 0xE0) == 0xC0 |
||||
|| m_nSerialState == 3) // message is complete
|
||||
{ |
||||
MIDIMessageHandler (m_SerialMessage, m_nSerialState); |
||||
|
||||
m_nSerialState = 0; |
||||
} |
||||
break; |
||||
|
||||
default: |
||||
assert (0); |
||||
break; |
||||
} |
||||
} |
||||
} |
||||
@ -0,0 +1,52 @@ |
||||
//
|
||||
// serialmididevice.h
|
||||
//
|
||||
// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
|
||||
// Copyright (C) 2022 The MiniDexed Team
|
||||
//
|
||||
// Original author of this class:
|
||||
// R. Stange <rsta2@o2online.de>
|
||||
//
|
||||
// This program is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
#ifndef _serialmididevice_h |
||||
#define _serialmididevice_h |
||||
|
||||
#include "mididevice.h" |
||||
#include "config.h" |
||||
#include <circle/interrupt.h> |
||||
#include <circle/serial.h> |
||||
#include <circle/types.h> |
||||
|
||||
class CMiniDexed; |
||||
|
||||
class CSerialMIDIDevice : public CMIDIDevice |
||||
{ |
||||
public: |
||||
CSerialMIDIDevice (CMiniDexed *pSynthesizer, CInterruptSystem *pInterrupt, CConfig *pConfig); |
||||
~CSerialMIDIDevice (void); |
||||
|
||||
boolean Initialize (void); |
||||
|
||||
void Process (void); |
||||
|
||||
private: |
||||
CConfig *m_pConfig; |
||||
|
||||
CSerialDevice m_Serial; |
||||
unsigned m_nSerialState; |
||||
u8 m_SerialMessage[3]; |
||||
}; |
||||
|
||||
#endif |
||||
@ -0,0 +1,107 @@ |
||||
//
|
||||
// userinterface.cpp
|
||||
//
|
||||
// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
|
||||
// Copyright (C) 2022 The MiniDexed Team
|
||||
//
|
||||
// This program is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
#include "userinterface.h" |
||||
#include "minidexed.h" |
||||
#include <circle/logger.h> |
||||
#include <circle/string.h> |
||||
#include <stdio.h> |
||||
#include <string.h> |
||||
#include <assert.h> |
||||
|
||||
LOGMODULE ("ui"); |
||||
|
||||
CUserInterface::CUserInterface (CMiniDexed *pMiniDexed, CConfig *pConfig) |
||||
: m_pMiniDexed (pMiniDexed), |
||||
m_pConfig (pConfig), |
||||
m_pLCD (0), |
||||
m_pLCDBuffered (0) |
||||
{ |
||||
} |
||||
|
||||
CUserInterface::~CUserInterface (void) |
||||
{ |
||||
delete m_pLCDBuffered; |
||||
delete m_pLCD; |
||||
} |
||||
|
||||
bool CUserInterface::Initialize (void) |
||||
{ |
||||
assert (m_pConfig); |
||||
|
||||
if (m_pConfig->GetLCDEnabled ()) |
||||
{ |
||||
m_pLCD = new CHD44780Device (CConfig::LCDColumns, CConfig::LCDRows, |
||||
m_pConfig->GetLCDPinData4 (), |
||||
m_pConfig->GetLCDPinData5 (), |
||||
m_pConfig->GetLCDPinData6 (), |
||||
m_pConfig->GetLCDPinData7 (), |
||||
m_pConfig->GetLCDPinEnable (), |
||||
m_pConfig->GetLCDPinRegisterSelect (), |
||||
m_pConfig->GetLCDPinReadWrite ()); |
||||
assert (m_pLCD); |
||||
|
||||
if (!m_pLCD->Initialize ()) |
||||
{ |
||||
return false; |
||||
} |
||||
|
||||
m_pLCDBuffered = new CWriteBufferDevice (m_pLCD); |
||||
assert (m_pLCDBuffered); |
||||
|
||||
LCDWrite ("\x1B[?25l"); // cursor off
|
||||
|
||||
LOGDBG ("LCD initialized"); |
||||
} |
||||
|
||||
return true; |
||||
} |
||||
|
||||
void CUserInterface::Process (void) |
||||
{ |
||||
if (m_pLCDBuffered) |
||||
{ |
||||
m_pLCDBuffered->Update (); |
||||
} |
||||
} |
||||
|
||||
void CUserInterface::ProgramChanged (unsigned nProgram) |
||||
{ |
||||
nProgram++; // MIDI numbering starts with 0, user interface with 1
|
||||
|
||||
// fetch program name from Dexed instance
|
||||
char ProgramName[11]; |
||||
memset (ProgramName, 0, sizeof ProgramName); |
||||
assert (m_pMiniDexed); |
||||
m_pMiniDexed->setName (ProgramName); |
||||
|
||||
printf ("Loading voice %u: \"%s\"\n", nProgram, ProgramName); |
||||
|
||||
CString String; |
||||
String.Format ("\n\r%u\n\r%s", nProgram, ProgramName); |
||||
LCDWrite (String); |
||||
} |
||||
|
||||
void CUserInterface::LCDWrite (const char *pString) |
||||
{ |
||||
if (m_pLCDBuffered) |
||||
{ |
||||
m_pLCDBuffered->Write (pString, strlen (pString)); |
||||
} |
||||
} |
||||
@ -0,0 +1,52 @@ |
||||
//
|
||||
// userinterface.h
|
||||
//
|
||||
// MiniDexed - Dexed FM synthesizer for bare metal Raspberry Pi
|
||||
// Copyright (C) 2022 The MiniDexed Team
|
||||
//
|
||||
// This program is free software: you can redistribute it and/or modify
|
||||
// it under the terms of the GNU General Public License as published by
|
||||
// the Free Software Foundation, either version 3 of the License, or
|
||||
// (at your option) any later version.
|
||||
//
|
||||
// This program is distributed in the hope that it will be useful,
|
||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
// GNU General Public License for more details.
|
||||
//
|
||||
// You should have received a copy of the GNU General Public License
|
||||
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
//
|
||||
#ifndef _userinterface_h |
||||
#define _userinterface_h |
||||
|
||||
#include "config.h" |
||||
#include <display/hd44780device.h> |
||||
#include <circle/writebuffer.h> |
||||
|
||||
class CMiniDexed; |
||||
|
||||
class CUserInterface |
||||
{ |
||||
public: |
||||
CUserInterface (CMiniDexed *pMiniDexed, CConfig *pConfig); |
||||
~CUserInterface (void); |
||||
|
||||
bool Initialize (void); |
||||
|
||||
void Process (void); |
||||
|
||||
void ProgramChanged (unsigned nProgram); // 0 .. 127
|
||||
|
||||
private: |
||||
void LCDWrite (const char *pString); // Print to optional HD44780 display
|
||||
|
||||
private: |
||||
CMiniDexed *m_pMiniDexed; |
||||
CConfig *m_pConfig; |
||||
|
||||
CHD44780Device *m_pLCD; |
||||
CWriteBufferDevice *m_pLCDBuffered; |
||||
}; |
||||
|
||||
#endif |
||||
Loading…
Reference in new issue