BOOL
CPCIDisk::Init(
HKEY hActiveKey
)
{
BOOL bRet = FALSE;
m_f16Bit = TRUE; // PCI is 16-bit
// configure port
if (!ConfigPort()) {
DEBUGMSG(ZONE_INIT, (_T(
"Atapi!CPCIDisk::Init> Failed to configure port; device(%u)\r\n"
), m_dwDeviceId));
goto exit;
}
// assign the appropriate folder name
m_szDiskName = (IsCDRomDevice() ? g_szPCICDRomDisk : g_szPCIHardDisk);
// reserve memory for DMA buffers
m_pStartMemory = (LPBYTE)VirtualAlloc(NULL, 0x10000, MEM_RESERVE, PAGE_READWRITE);
if (!m_pStartMemory) {
bRet = FALSE;
}
// finish intialization; i.e., initialize device
bRet = CDisk::Init(hActiveKey);
if (!bRet) {
goto exit;
}
exit:;
return bRet;
}
BOOL
CRomiDisk::Init(
HKEY hActiveKey
)
{
BOOL bRet = FALSE;
m_f16Bit = TRUE; // PCI is 16-bit
// configure port
if (!InitializePort()) {
DEBUGMSG(ZONE_INIT|ZONE_ERROR, (_T(
"Atapi!CRomiDisk::Init> Failed to configure port; device(%u)\r\n"
), m_dwDeviceId));
goto exit;
}
// assign the appropriate folder name
m_szDiskName = (IsCDRomDevice() ? g_szPCICDRomDisk : g_szPCIHardDisk);
// reserve memory for DMA buffers
m_pStartMemory = (LPBYTE)VirtualAlloc(NULL, 0x10000, MEM_RESERVE, PAGE_READWRITE);
if (!m_pStartMemory) {
bRet = FALSE;
}
WriteReg(ATA_CONTROL, ReadReg(ATA_CONTROL) | 0x1);
// finish intialization; i.e., initialize device
bRet = CDisk::Init(hActiveKey);
if ((m_pPort->m_pDskReg[m_dwDeviceId]->dwEnablePDMA || m_pPort->m_pDskReg[m_dwDeviceId]->dwEnableUDMA) && m_pDMAVirtualAddress == NULL)
{
DMA_ADAPTER_OBJECT dmaAdapter;
dmaAdapter.ObjectSize = sizeof(dmaAdapter);
dmaAdapter.InterfaceType = Internal;
dmaAdapter.BusNumber = 0;
m_pDMAVirtualAddress= (PBYTE)HalAllocateCommonBuffer( &dmaAdapter, m_pPort->m_pDskReg[m_dwDeviceId]->dwDoubleBufferSize, &m_DMAPhyaddress, FALSE );
}
if (m_pPort->m_pDskReg[m_dwDeviceId]->dwEnableUDMA && ( m_Id.UltraDMASupport & 0x3f))
{
for(int i=5;i>=0;i--) {
if(m_Id.UltraDMASupport & (0x01<<i)) {
m_dwCurrentUDMAMode = (i > 4) ? 4 : i;
break;
}
}
SetPioMode(PIO0);
SetUdmaMode();
DEBUGMSG(ZONE_INIT, (_T("### ATA-Disk supports UDMA to 0x%x 0x%x\r\n"), m_Id.UltraDMASupport,m_dwCurrentUDMAMode));
m_pPort->m_pDskReg[m_dwDeviceId]->dwEnablePDMA = FALSE;
}
else if (m_pPort->m_pDskReg[m_dwDeviceId]->dwEnablePDMA)
{
SetPioMode(m_Id.AdvancedPIOxferreserved);
m_pPort->m_pDskReg[m_dwDeviceId]->dwEnableUDMA = FALSE;;
DEBUGMSG(ZONE_INIT, (_T("### ATA-Disk dose not support UDMA. It is running on PDMA\r\n")));
}
else {
SetPioMode(m_Id.AdvancedPIOxferreserved);
m_pPort->m_pDskReg[m_dwDeviceId]->dwEnableUDMA = FALSE;;
m_pPort->m_pDskReg[m_dwDeviceId]->dwEnablePDMA = FALSE;;
DEBUGMSG(ZONE_INIT, (_T("### ATA-Disk is running on PIO MODE\r\n")));
DEBUGMSG(ZONE_INIT, (_T("Atapi!CDisk::Init> Disabled DMA\r\n")));
}
// associate interrupt event with IRQ
if (!InterruptInitialize(
m_pPort->m_dwSysIntr,
m_pPort->m_hIRQEvent,
NULL,
0)
) {
DEBUGMSG(ZONE_INIT|ZONE_ERROR, (_T(
"Atapi!CRomiDisk::ConfigPort> Failed to initialize interrupt(SysIntr(%d)) for device(%d)\r\n"
), m_pPort->m_dwSysIntr, m_dwDeviceId));
bRet = FALSE;
}
if (!bRet) {
goto exit;
}
exit:;
return bRet;
}
