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DSP startup sequence:
DspBoot called with (JASystem::TAudioThread::syncDSP()) as a parameter.
DSP lib initialized
A Dsp task is created:
init callback = DspHandShake()
req callback = JASystem::TAudioThread::syncDSP()
Task is pushed as first task and executed
DSP send DSP_INIT command (0xDCD10003)
__DSPHandler receive the command
task's init callback (DspHandShake) is called
1 mail is read from dsp (and discarded)
DSP flag is set as running
AIRegisterDMACallback(JASystem::TAudioThread::syncAudio((void))
AIStartDMA() to initialize dma in AI module
-----------------------------------
DSP run sequence:
__DSPHandler receive command DSP_RESUME
callback JASystem::TAudioThread::syncDSP called and pull 1 mail
A message is send by OSSendMessage(1)
JASystem::TAudioThread::audioproc receive OSMessage:
0=update dac
1=update dsp
2=nop ?
3=exit thread
dsp is updated
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