SD_API_STATUS
CSDHCBase::SetControllerPowerState(
CEDEVICE_POWER_STATE cpsNew
)
{
if (cpsNew != m_cpsCurrent) {
switch (cpsNew) {
case D0:
case D4:
KernelIoControl(IOCTL_HAL_DISABLE_WAKE, &m_dwSysIntr,
sizeof(m_dwSysIntr), NULL, 0, NULL);
break;
case D3:
KernelIoControl(IOCTL_HAL_ENABLE_WAKE, &m_dwSysIntr,
sizeof(m_dwSysIntr), NULL, 0, NULL);
break;
}
SetDevicePowerState(m_hBusAccess, cpsNew, NULL);
m_cpsCurrent = cpsNew;
}
return SD_API_STATUS_SUCCESS;
}
//------------------------------------------------------------------------------
// Puts CAudioManager in an initialized state
//
BOOL
CAudioManager::deinitialize()
{
DEBUGMSG(ZONE_FUNCTION, (L"WAV:+deinitialize()\r\n"));
if (m_hParentBus)
{
SetDevicePowerState(m_hParentBus, D4 , NULL);
CloseBusAccessHandle(m_hParentBus);
m_hParentBus = NULL;
}
DEBUGMSG(ZONE_FUNCTION, (L"WAV:-deinitialize()\r\n"));
return TRUE;
}
//------------------------------------------------------------------------------
// central routine which ensures all resources are freed for the class
//
void
CAudioManager::InternalCleanUp()
{
DEBUGMSG(ZONE_FUNCTION, (L"WAV:+InternalCleanUp()\r\n"));
if (m_state != kUninitialized)
{
// clean-up some resources
//
if (m_hParentBus)
{
SetDevicePowerState(m_hParentBus, D4 , NULL);
CloseBusAccessHandle(m_hParentBus) ;
}
m_state = kUninitialized;
}
DEBUGMSG(ZONE_FUNCTION, (L"WAV:-InternalCleanUp()\r\n"));
}
BOOL
ACAudioHWContext::HWMapControllerRegs()
{
PHYSICAL_ADDRESS pa;
DEBUGMSG(ZONE_AC, (L"+ACAudioHWContext::HWMapControllerRegs()\r\n"));
// set the power state
if (!m_hParent)
{
DEBUGMSG(ZONE_ERROR, (L"ACAudioHWContext::HWMapControllerRegs: "
L"ERROR setting the power state.\r\n"
));
goto ErrExit;
}
m_CurPowerState = D2;
SetDevicePowerState(m_hParent, D2 , NULL);
// get the McBSP pointer
pa.HighPart= 0;
pa.LowPart = AUDIO_MCBSP_REGS_PA;
m_pMCBSPRegisters = (OMAP2420_McBSP_REGS *)MmMapIoSpace(pa, N1KB, FALSE);
if (!m_pMCBSPRegisters)
{
DEBUGMSG(ZONE_ERROR, (L"ACAudioHWContext::HWMapControllerRegs: "
L"ERROR mapping MCBSP registers.\r\n"
));
goto ErrExit;
}
// get the PRCM registers pointer
pa.LowPart = OMAP2420_PRCM_REGS_PA;
m_pPRCMRegs = (OMAP2420_PRCM_REGS *)MmMapIoSpace(pa, sizeof(OMAP2420_PRCM_REGS), FALSE);
if (!m_pPRCMRegs)
{
DEBUGMSG(ZONE_ERROR, (L"ACAudioHWContext::HWMapControllerRegs: "
L"Allocating PRCM register failed.\r\n"
));
goto ErrExit;
}
// open the SPI device
m_hSPI = SPIOpen();
if (!m_hSPI)
{
DEBUGMSG(ZONE_ERROR, (L"ACAudioHWContext::HWMapControllerRegs: "
L"Failed to open the SPI device driver.\r\n"
));
goto ErrExit;
}
// configure the SPI device
if (!SPISetSlaveAddress(m_hSPI, 0))
{
DEBUGMSG(ZONE_ERROR, (L"ACAudioHWContext::HWMapControllerRegs: "
L"Failed to set the SPI slave address.\r\n"
));
goto ErrExit;
}
return TRUE;
ErrExit:
// reset all mappings in case of error
m_pMCBSPRegisters = NULL;
m_pPRCMRegs = NULL;
m_hSPI = NULL;
return FALSE;
}
