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107 lines
2.1 KiB
107 lines
2.1 KiB
//
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// kernel.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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// 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 "kernel.h"
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#include <circle/logger.h>
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#include <circle/synchronize.h>
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#include <assert.h>
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LOGMODULE ("kernel");
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CKernel *CKernel::s_pThis = 0;
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CKernel::CKernel (void)
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: CStdlibAppStdio ("minidexed"),
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m_Config (&mFileSystem),
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m_GPIOManager (&mInterrupt),
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m_I2CMaster (CMachineInfo::Get ()->GetDevice (DeviceI2CMaster), TRUE),
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m_pDexed (0)
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{
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s_pThis = this;
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// mActLED.Blink (5); // show we are alive
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}
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CKernel::~CKernel(void)
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{
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s_pThis = 0;
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}
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bool CKernel::Initialize (void)
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{
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if (!CStdlibAppStdio::Initialize ())
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{
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return FALSE;
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}
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mLogger.RegisterPanicHandler (PanicHandler);
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if (!m_GPIOManager.Initialize ())
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{
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return FALSE;
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}
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if (!m_I2CMaster.Initialize ())
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{
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return FALSE;
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}
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m_Config.Load ();
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m_pDexed = new CMiniDexed (&m_Config, &mInterrupt, &m_GPIOManager, &m_I2CMaster);
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assert (m_pDexed);
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if (!m_pDexed->Initialize ())
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{
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return FALSE;
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}
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return TRUE;
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}
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CStdlibApp::TShutdownMode CKernel::Run (void)
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{
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assert (m_pDexed);
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while (42 == 42)
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{
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boolean bUpdated = mUSBHCI.UpdatePlugAndPlay ();
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m_pDexed->Process(bUpdated);
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if (mbScreenAvailable)
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{
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mScreen.Update ();
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}
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m_CPUThrottle.Update ();
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}
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return ShutdownHalt;
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}
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void CKernel::PanicHandler (void)
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{
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EnableIRQs ();
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if (s_pThis->mbScreenAvailable)
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{
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s_pThis->mScreen.Update (4096);
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}
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}
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