void CUCode_AX::StartWorking()
{
if (m_run_on_thread)
NotifyAXThread();
else
m_work_available = true;
}
CUCode_AX::~CUCode_AX()
{
m_cmdlist_size = (u16)-1; // Special value to signal end
NotifyAXThread();
m_axthread.join();
m_rMailHandler.Clear();
}
void CUCode_AX::HandleMail(u32 mail)
{
// Indicates if the next message is a command list address.
static bool next_is_cmdlist = false;
static u16 cmdlist_size = 0;
bool set_next_is_cmdlist = false;
// Wait for DSP processing to be done before answering any mail. This is
// safe to do because it matches what the DSP does on real hardware: there
// is no interrupt when a mail from CPU is received.
m_processing.lock();
if (next_is_cmdlist)
{
CopyCmdList(mail, cmdlist_size);
StartWorking();
NotifyAXThread();
}
else if (m_UploadSetupInProgress)
{
PrepareBootUCode(mail);
}
else if (mail == MAIL_RESUME)
{
// Acknowledge the resume request
m_rMailHandler.PushMail(DSP_RESUME);
DSP::GenerateDSPInterruptFromDSPEmu(DSP::INT_DSP);
}
else if (mail == MAIL_NEW_UCODE)
{
soundStream->GetMixer()->SetHLEReady(false);
m_UploadSetupInProgress = true;
}
else if (mail == MAIL_RESET)
{
m_DSPHLE->SetUCode(UCODE_ROM);
}
else if (mail == MAIL_CONTINUE)
{
// We don't have to do anything here - the CPU does not wait for a ACK
// and sends a cmdlist mail just after.
}
else if ((mail & MAIL_CMDLIST_MASK) == MAIL_CMDLIST)
{
// A command list address is going to be sent next.
set_next_is_cmdlist = true;
cmdlist_size = (u16)(mail & ~MAIL_CMDLIST_MASK);
}
else
{
ERROR_LOG(DSPHLE, "Unknown mail sent to AX::HandleMail: %08x", mail);
}
m_processing.unlock();
next_is_cmdlist = set_next_is_cmdlist;
}