不知道有没有人试过在VMWare中跑过Windows CE。可能有人会问：在VMWare中跑Windows CE有什么意义？Windows CE不是有基于Vritual PC的emulator吗？要做干吗不做一个基于Microsoft自己的Virtual PC的？
简单的答案是，VMWare支持一些Virtual PC（包括Windows CE emulator）不支持的硬件。对我来说，最吸引我的是VMWare支持USB设备。另外根据我的经验VMWare的性能比Virtual PC强。
本文介绍如何针对VMWare支持的硬件，做一个相应的Windows CE BSP。根据VMWare虚拟机的spec，我打算支持的硬件列表如下（SCSI设备、软驱这些用的比较少就算了）：
Graphics
•VGA and SVGA support
IDE Drives
•IDE virtual disks up to 950 GB
•Serial (COM) Ports
•Up to four serial (COM) ports
USB ports
•Two-port USB 1.1 UHCI controller
Keyboard
•104-key Windows 95/98 enhanced
Mouse and Drawing Tablets
•PS/2 mouse
Ethernet Card
•AMD PCnet-PCI II compatible
Sound
•Emulates Creative Labs Sound Blaster AudioPCI (MIDI input, game controllers and joysticks are not supported, except for USB devices)
•VGA and SVGA support
IDE Drives
•IDE virtual disks up to 950 GB
•Serial (COM) Ports
•Up to four serial (COM) ports
USB ports
•Two-port USB 1.1 UHCI controller
Keyboard
•104-key Windows 95/98 enhanced
Mouse and Drawing Tablets
•PS/2 mouse
Ethernet Card
•AMD PCnet-PCI II compatible
Sound
•Emulates Creative Labs Sound Blaster AudioPCI (MIDI input, game controllers and joysticks are not supported, except for USB devices)
其实从根本上来说，给VMWare用的Windows CE跟普通PC或者Virtual PC的并无多大区别。因此基本做法和一些概念都可以看MSDN里对CEPC的相关介绍。这里只重点介绍一些针对VMWare的不同地方。
给Windows CE用的VMWare虚拟机可以用DOS的。BSP可以直接copy一份Platform Builder带的CEPC BSP做为起始的BSP，然后在此基础上修改。从IDE硬盘、声卡、显卡、键盘鼠标的支持比较简单，用Platform Builder中现成的driver就行了。
比较麻烦的是网卡和USB host controller。
VMWare虚拟的网卡兼容AMD PCnet-PCI II，具体型号是AMD AM79C970A，这个在Windows CE下可实在不好找，自己写一个就太麻烦了。不过在google大法的强力帮助下，我花了很长时间终于找到一个编译好的driver－还是for Windows CE 2.0的（现在想不起来在哪儿找到的了，想要的直接找我吧）。相关注册表设置见附录。
比较头疼的是USB host driver。VMWare中支持的USB host controller是USB 1.1 UHCI controller。Windows CE下有现成的driver，但是直接拿来用的话你会发现不能工作。一番研究后发现问题出在LEGACY SUPPORT REGISTER （LEGSUP）的设置上－VMWare在初始化UHCI controller的时候enable了SMI generation，而且没有把USB中断route到PIRQD上。简单说来就是VMWare对UHCI controller的初始化和Windows CE自带driver要求的不一样（其实是和UHCI spec定义的不一致，UHCI spec定义LEGSUP寄存器默认值是2000h（见5.2.1节），VMWare中是3Bh）。为了能让UHCI controller工作，需要修改UHCI driver的初始化例程，重新编译一个版本。具体修改见附录。
这样，一个支持声卡、网卡、USB设备的VMWare BSP就基本搞定了。
附上两张运行时的截图：
附1，网卡的注册表设置，放在platform.reg里：
[HKEY_LOCAL_MACHINECommPCNTN4M]
"DisplayName"="PCNTN4M Compatible Ethernet Driver"
"Group"="NDIS"
"ImagePath"="pcntn4m.dll"
[HKEY_LOCAL_MACHINECommPCNTN4MLinkage]
"Route"=multi_sz:"PCNTN4M1"
[HKEY_LOCAL_MACHINECommPCNTN4M1]
"DisplayName"="PCNTN4M Compatible Ethernet Driver"
"Group"="NDIS"
"ImagePath"="pcntn4m.dll"
[HKEY_LOCAL_MACHINECommPCNTN4M1Parms]
; "BusNumber"=dword:0
; "BusType"=dword:05
; "Interrupt"=dword:05
; "IOAddress"=dword:0300
[HKEY_LOCAL_MACHINECommTcpipLinkage]
"Bind"=multi_sz:"ppp","PCNTN4M1"
; Registry values for the pcntn4m1 driver
[HKEY_LOCAL_MACHINECommPCNTN4M1ParmsTcpIp]
; This enable the DHCP. In Win CE 2.1 Preview version statically allocated IP address
; does not work. So we use the DHCP server to allocate the IP address.
"EnableDHCP"=dword:1
; This should be MULTI_SZ
"DefaultGateway"=""
; This should be SZ... If null it means use LAN, else WAN and Interface.
"LLInterface"=""
; Use zero for broadcast address? (or 255.255.255.255)
"UseZeroBroadcast"=dword:0
; Thus should be MULTI_SZ, the IP address list
"IpAddress"="0.0.0.0"
; This should be MULTI_SZ, the subnet masks for the above IP addresses
"Subnetmask"="0.0.0.0"
;
; Template the PCI bus driver uses to match a AM79C970 PC-net card
;
[HKEY_LOCAL_MACHINEDriversBuiltInPCITemplatePCNTN4M]
"Dll"="NDIS.dll"
"Class"=dword:02
"SubClass"=dword:00
"ProgIF"=dword:0
"VendorID"=multi_sz:"1022"
"DeviceID"=multi_sz:"2000"
; "Entry"="NdisPCIBusDeviceInit"
"Prefix"="NDS"
"Transceiver"=dword:3
"IsrDll"="giisr.dll"
"IsrHandler"="ISRHandler"
"PortIsIO"=dword:1
"PortOffset"=dword:C ; TBD
"PortSize"=dword:2
"PortMask"=dword:5F00 ; TBD
[HKEY_LOCAL_MACHINECommConnectionSharing]
"PrivateInterface"="PCI"PCNTN4M"
"DisplayName"="PCNTN4M Compatible Ethernet Driver"
"Group"="NDIS"
"ImagePath"="pcntn4m.dll"
[HKEY_LOCAL_MACHINECommPCNTN4MLinkage]
"Route"=multi_sz:"PCNTN4M1"
[HKEY_LOCAL_MACHINECommPCNTN4M1]
"DisplayName"="PCNTN4M Compatible Ethernet Driver"
"Group"="NDIS"
"ImagePath"="pcntn4m.dll"
[HKEY_LOCAL_MACHINECommPCNTN4M1Parms]
; "BusNumber"=dword:0
; "BusType"=dword:05
; "Interrupt"=dword:05
; "IOAddress"=dword:0300
[HKEY_LOCAL_MACHINECommTcpipLinkage]
"Bind"=multi_sz:"ppp","PCNTN4M1"
; Registry values for the pcntn4m1 driver
[HKEY_LOCAL_MACHINECommPCNTN4M1ParmsTcpIp]
; This enable the DHCP. In Win CE 2.1 Preview version statically allocated IP address
; does not work. So we use the DHCP server to allocate the IP address.
"EnableDHCP"=dword:1
; This should be MULTI_SZ
"DefaultGateway"=""
; This should be SZ... If null it means use LAN, else WAN and Interface.
"LLInterface"=""
; Use zero for broadcast address? (or 255.255.255.255)
"UseZeroBroadcast"=dword:0
; Thus should be MULTI_SZ, the IP address list
"IpAddress"="0.0.0.0"
; This should be MULTI_SZ, the subnet masks for the above IP addresses
"Subnetmask"="0.0.0.0"
;
; Template the PCI bus driver uses to match a AM79C970 PC-net card
;
[HKEY_LOCAL_MACHINEDriversBuiltInPCITemplatePCNTN4M]
"Dll"="NDIS.dll"
"Class"=dword:02
"SubClass"=dword:00
"ProgIF"=dword:0
"VendorID"=multi_sz:"1022"
"DeviceID"=multi_sz:"2000"
; "Entry"="NdisPCIBusDeviceInit"
"Prefix"="NDS"
"Transceiver"=dword:3
"IsrDll"="giisr.dll"
"IsrHandler"="ISRHandler"
"PortIsIO"=dword:1
"PortOffset"=dword:C ; TBD
"PortSize"=dword:2
"PortMask"=dword:5F00 ; TBD
[HKEY_LOCAL_MACHINECommConnectionSharing]
"PrivateInterface"="PCI"PCNTN4M"
附2，UHCI driver需要修改的代码（红色部分，在$(DRIVERS)"USB"HCD"UHC"system.csystem.c中）：
// Inline functions
__inline static WORD
PCIConfig_ReadWord(
ULONG BusNumber,
ULONG Device,
ULONG Function,
ULONG Offset
)
{
WORD RetVal = 0;
PCI_SLOT_NUMBER SlotNumber;
SlotNumber.u.AsULONG = 0;
SlotNumber.u.bits.DeviceNumber = Device;
SlotNumber.u.bits.FunctionNumber = Function;
HalGetBusDataByOffset(PCIConfiguration, BusNumber, SlotNumber.u.AsULONG, &RetVal, Offset, sizeof(RetVal));
return RetVal;
}
__inline static void
PCIConfig_Write(
ULONG BusNumber,
ULONG Device,
ULONG Function,
ULONG Offset,
ULONG Value,
ULONG Size
)
{
PCI_SLOT_NUMBER SlotNumber;
SlotNumber.u.AsULONG = 0;
SlotNumber.u.bits.DeviceNumber = Device;
SlotNumber.u.bits.FunctionNumber = Function;
HalSetBusDataByOffset(PCIConfiguration, BusNumber, SlotNumber.u.AsULONG, &Value, Offset, Size);
}
/* InitializeUHCI
*
* Configure and initialize UHCI card
*
* Return Value:
* Return TRUE if card could be located and configured, otherwise FALSE
*/
static BOOL
InitializeUHCI(
SUhcdPdd * pPddObject, // IN - Pointer to PDD structure
LPCWSTR szDriverRegKey) // IN - Pointer to active registry key string
{
PUCHAR ioPortBase = NULL;
DWORD dwAddrLen;
DWORD dwIOSpace;
BOOL InstallIsr = FALSE;
BOOL fResult = FALSE;
LPVOID pobMem = NULL;
LPVOID pobUhcd = NULL;
DWORD PhysAddr;
DWORD dwHPPhysicalMemSize;
HKEY hKey;
WORD LegSup;
DDKWINDOWINFO dwi;
DDKISRINFO dii;
DDKPCIINFO dpi;
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE,szDriverRegKey,0,0,&hKey)!= ERROR_SUCCESS) {
DEBUGMSG(ZONE_ERROR,(TEXT("InitializeUHCI:GetRegistryConfig RegOpenKeyEx(%s) failed "),
szDriverRegKey));
return FALSE;
}
dwi.cbSize=sizeof(dwi);
dii.cbSize=sizeof(dii);
dpi.cbSize=sizeof(dpi);
if ( DDKReg_GetWindowInfo(hKey, &dwi ) !=ERROR_SUCCESS ||
DDKReg_GetIsrInfo (hKey, &dii ) != ERROR_SUCCESS ||
DDKReg_GetPciInfo (hKey, &dpi ) != ERROR_SUCCESS) {
DEBUGMSG(ZONE_ERROR,(TEXT("InitializeUHCI:DDKReg_GetWindowInfo or DDKReg_GetWindowInfo or DDKReg_GetPciInfo failed ")));
goto InitializeUHCI_Error;
}
if (dwi.dwNumMemWindows!=0) {
PhysAddr = dwi.memWindows[0].dwBase;
dwAddrLen= dwi.memWindows[0].dwLen;
dwIOSpace = 0;
}
else if (dwi.dwNumIoWindows!=0) {
PhysAddr= dwi.ioWindows[0].dwBase;
dwAddrLen = dwi.ioWindows[0].dwLen;
dwIOSpace = 1;
}
else
goto InitializeUHCI_Error;
DEBUGMSG(ZONE_INIT,(TEXT("UHCD: Read config from registry: Base Address: 0x%X, Length: 0x%X, I/O Port: %s, SysIntr: 0x%X, Interface Type: %u, Bus Number: %u "),
PhysAddr, dwAddrLen, dwIOSpace ? L"YES" : L"NO", dii.dwSysintr, dwi.dwInterfaceType, dwi.dwBusNumber));
ioPortBase = (PUCHAR)PhysAddr;
if (!(fResult = ConfigureUHCICard(pPddObject, &ioPortBase, dwAddrLen, dwIOSpace, dwi.dwInterfaceType, dwi.dwBusNumber))) {
goto InitializeUHCI_Error;
}
if (dii.szIsrDll[0] != 0 && dii.szIsrHandler[0]!=0 && dii.dwIrq<0xff && dii.dwIrq>0 ) {
// Install ISR handler
pPddObject->IsrHandle = LoadIntChainHandler(dii.szIsrDll,dii.szIsrHandler, (BYTE)dii.dwIrq);
if (!pPddObject->IsrHandle) {
DEBUGMSG(ZONE_ERROR, (L"UHCD: Couldn't install ISR handler "));
} else {
GIISR_INFO Info;
PHYSICAL_ADDRESS PortAddress = {PhysAddr, 0};
DEBUGMSG(ZONE_INIT, (L"UHCD: Installed ISR handler, Dll = '%s', Handler = '%s', Irq = %d ",
dii.szIsrDll, dii.szIsrHandler, dii.dwIrq));
if (!BusTransBusAddrToStatic(pPddObject->hParentBusHandle,dwi.dwInterfaceType, dwi.dwBusNumber, PortAddress, dwAddrLen, &dwIOSpace, &(PVOID)PhysAddr)) {
DEBUGMSG(ZONE_ERROR, (L"UHCD: Failed TransBusAddrToStatic "));
return FALSE;
}
// Set up ISR handler
Info.SysIntr = dii.dwSysintr;
Info.CheckPort = TRUE;
Info.PortIsIO = (dwIOSpace) ? TRUE : FALSE;
Info.UseMaskReg = TRUE;;
Info.PortAddr = PhysAddr + 0x2;
Info.PortSize = sizeof(WORD);
Info.MaskAddr = PhysAddr + 0x4;
if (!KernelLibIoControl(pPddObject->IsrHandle, IOCTL_GIISR_INFO, &Info, sizeof(Info), NULL, 0, NULL)) {
DEBUGMSG(ZONE_ERROR, (L"UHCD: KernelLibIoControl call failed. "));
}
}
}
// The PDD can supply a buffer of contiguous physical memory here, or can let the
// MDD try to allocate the memory from system RAM. We will use the HalAllocateCommonBuffer()
// API to allocate the memory and bus controller physical addresses and pass this information
// into the MDD.
if (GetRegistryPhysicalMemSize(szDriverRegKey,&pPddObject->dwPhysicalMemSize)) {
// A quarter for High priority Memory.
dwHPPhysicalMemSize = pPddObject->dwPhysicalMemSize/4;
// Align with page size.
pPddObject->dwPhysicalMemSize = (pPddObject->dwPhysicalMemSize + PAGE_SIZE -1) & ~(PAGE_SIZE -1);
dwHPPhysicalMemSize = ((dwHPPhysicalMemSize + PAGE_SIZE -1) & ~(PAGE_SIZE -1));
}
else {
pPddObject->dwPhysicalMemSize=0;
dwHPPhysicalMemSize = 0;
}
if (pPddObject->dwPhysicalMemSize<gcTotalAvailablePhysicalMemory) { // Setup Minimun requirement.
pPddObject->dwPhysicalMemSize = gcTotalAvailablePhysicalMemory;
dwHPPhysicalMemSize = gcHighPriorityPhysicalMemory;
}
pPddObject->AdapterObject.ObjectSize = sizeof(DMA_ADAPTER_OBJECT);
pPddObject->AdapterObject.InterfaceType = dwi.dwInterfaceType;
pPddObject->AdapterObject.BusNumber = dwi.dwBusNumber;
if ((pPddObject->pvVirtualAddress = HalAllocateCommonBuffer(&pPddObject->AdapterObject, pPddObject->dwPhysicalMemSize, &pPddObject->LogicalAddress, FALSE)) == NULL) {
goto InitializeUHCI_Error;
}
if (!(pobMem = HcdMdd_CreateMemoryObject(pPddObject->dwPhysicalMemSize, dwHPPhysicalMemSize, (PUCHAR) pPddObject->pvVirtualAddress, (PUCHAR) pPddObject->LogicalAddress.LowPart))) {
goto InitializeUHCI_Error;
}
if (!(pobUhcd = HcdMdd_CreateHcdObject(pPddObject, pobMem, szDriverRegKey, ioPortBase, dii.dwSysintr))) {
goto InitializeUHCI_Error;
}
// set LEGSUP here
LegSup = PCIConfig_ReadWord(dwi.dwBusNumber, dpi.dwDeviceNumber, dpi.dwFunctionNumber, 0xC0);
RETAILMSG(1, (TEXT("UHCD: LEGSUP=0x%08x "), LegSup));
LegSup = 0x2000;
PCIConfig_Write(dwi.dwBusNumber, dpi.dwDeviceNumber, dpi.dwFunctionNumber, 0xC0, LegSup, sizeof(LegSup));
pPddObject->lpvMemoryObject = pobMem;
pPddObject->lpvUhcdMddObject = pobUhcd;
_tcsncpy(pPddObject->szDriverRegKey, szDriverRegKey, MAX_PATH);
pPddObject->ioPortBase = ioPortBase;
pPddObject->dwSysIntr = dii.dwSysintr;
// PCI OHCI support suspend and resume
if ( hKey!=NULL) {
DWORD dwCapability;
DWORD dwType;
DWORD dwLength = sizeof(DWORD);
if (RegQueryValueEx(hKey, HCD_CAPABILITY_VALNAME, 0, &dwType, (PUCHAR)&dwCapability, &dwLength) == ERROR_SUCCESS)
HcdMdd_SetCapability (pobUhcd,dwCapability);
RegCloseKey(hKey);
}
return TRUE;
InitializeUHCI_Error:
if (pPddObject->IsrHandle) {
FreeIntChainHandler(pPddObject->IsrHandle);
pPddObject->IsrHandle = NULL;
}
if (pobUhcd)
HcdMdd_DestroyHcdObject(pobUhcd);
if (pobMem)
HcdMdd_DestroyMemoryObject(pobMem);
if(pPddObject->pvVirtualAddress)
HalFreeCommonBuffer(&pPddObject->AdapterObject, pPddObject->dwPhysicalMemSize, pPddObject->LogicalAddress, pPddObject->pvVirtualAddress, FALSE);
pPddObject->lpvMemoryObject = NULL;
pPddObject->lpvUhcdMddObject = NULL;
pPddObject->pvVirtualAddress = NULL;
if ( hKey!=NULL)
RegCloseKey(hKey);
return FALSE;
}
__inline static WORD
PCIConfig_ReadWord(
ULONG BusNumber,
ULONG Device,
ULONG Function,
ULONG Offset
)
{
WORD RetVal = 0;
WORD RetVal = 0;PCI_SLOT_NUMBER SlotNumber;
SlotNumber.u.AsULONG = 0;
SlotNumber.u.bits.DeviceNumber = Device;
SlotNumber.u.bits.FunctionNumber = Function;
HalGetBusDataByOffset(PCIConfiguration, BusNumber, SlotNumber.u.AsULONG, &RetVal, Offset, sizeof(RetVal));
return RetVal;
}
}__inline static void
PCIConfig_Write(
ULONG BusNumber,
ULONG Device,
ULONG Function,
ULONG Offset,
ULONG Value,
ULONG Size
)
{
PCI_SLOT_NUMBER SlotNumber;
SlotNumber.u.AsULONG = 0;
SlotNumber.u.bits.DeviceNumber = Device;
SlotNumber.u.bits.FunctionNumber = Function;
HalSetBusDataByOffset(PCIConfiguration, BusNumber, SlotNumber.u.AsULONG, &Value, Offset, Size);
}
/* InitializeUHCI
*
* Configure and initialize UHCI card
*
* Return Value:
* Return TRUE if card could be located and configured, otherwise FALSE
*/
static BOOL
InitializeUHCI(
SUhcdPdd * pPddObject, // IN - Pointer to PDD structure
LPCWSTR szDriverRegKey) // IN - Pointer to active registry key string
{
PUCHAR ioPortBase = NULL;
DWORD dwAddrLen;
DWORD dwIOSpace;
BOOL InstallIsr = FALSE;
BOOL fResult = FALSE;
LPVOID pobMem = NULL;
LPVOID pobUhcd = NULL;
DWORD PhysAddr;
DWORD dwHPPhysicalMemSize;
HKEY hKey;
WORD LegSup;
DDKWINDOWINFO dwi;
DDKISRINFO dii;
DDKPCIINFO dpi;
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE,szDriverRegKey,0,0,&hKey)!= ERROR_SUCCESS) {
DEBUGMSG(ZONE_ERROR,(TEXT("InitializeUHCI:GetRegistryConfig RegOpenKeyEx(%s) failed "),
szDriverRegKey));
return FALSE;
}
}dwi.cbSize=sizeof(dwi);
dii.cbSize=sizeof(dii);
dpi.cbSize=sizeof(dpi);
if ( DDKReg_GetWindowInfo(hKey, &dwi ) !=ERROR_SUCCESS ||
DDKReg_GetIsrInfo (hKey, &dii ) != ERROR_SUCCESS ||
DDKReg_GetPciInfo (hKey, &dpi ) != ERROR_SUCCESS) {
DEBUGMSG(ZONE_ERROR,(TEXT("InitializeUHCI:DDKReg_GetWindowInfo or DDKReg_GetWindowInfo or DDKReg_GetPciInfo failed ")));
goto InitializeUHCI_Error;
}
if (dwi.dwNumMemWindows!=0) {
PhysAddr = dwi.memWindows[0].dwBase;
dwAddrLen= dwi.memWindows[0].dwLen;
dwIOSpace = 0;
}
else if (dwi.dwNumIoWindows!=0) {
PhysAddr= dwi.ioWindows[0].dwBase;
dwAddrLen = dwi.ioWindows[0].dwLen;
dwIOSpace = 1;
}
else
goto InitializeUHCI_Error;
DEBUGMSG(ZONE_INIT,(TEXT("UHCD: Read config from registry: Base Address: 0x%X, Length: 0x%X, I/O Port: %s, SysIntr: 0x%X, Interface Type: %u, Bus Number: %u "),
PhysAddr, dwAddrLen, dwIOSpace ? L"YES" : L"NO", dii.dwSysintr, dwi.dwInterfaceType, dwi.dwBusNumber));
ioPortBase = (PUCHAR)PhysAddr;
if (!(fResult = ConfigureUHCICard(pPddObject, &ioPortBase, dwAddrLen, dwIOSpace, dwi.dwInterfaceType, dwi.dwBusNumber))) {
goto InitializeUHCI_Error;
}
if (dii.szIsrDll[0] != 0 && dii.szIsrHandler[0]!=0 && dii.dwIrq<0xff && dii.dwIrq>0 ) {
// Install ISR handler
pPddObject->IsrHandle = LoadIntChainHandler(dii.szIsrDll,dii.szIsrHandler, (BYTE)dii.dwIrq);
if (!pPddObject->IsrHandle) {
DEBUGMSG(ZONE_ERROR, (L"UHCD: Couldn't install ISR handler "));
} else {
GIISR_INFO Info;
PHYSICAL_ADDRESS PortAddress = {PhysAddr, 0};
DEBUGMSG(ZONE_INIT, (L"UHCD: Installed ISR handler, Dll = '%s', Handler = '%s', Irq = %d ",
dii.szIsrDll, dii.szIsrHandler, dii.dwIrq));
if (!BusTransBusAddrToStatic(pPddObject->hParentBusHandle,dwi.dwInterfaceType, dwi.dwBusNumber, PortAddress, dwAddrLen, &dwIOSpace, &(PVOID)PhysAddr)) {
DEBUGMSG(ZONE_ERROR, (L"UHCD: Failed TransBusAddrToStatic "));
return FALSE;
}
// Set up ISR handler
Info.SysIntr = dii.dwSysintr;
Info.CheckPort = TRUE;
Info.PortIsIO = (dwIOSpace) ? TRUE : FALSE;
Info.UseMaskReg = TRUE;;
Info.PortAddr = PhysAddr + 0x2;
Info.PortSize = sizeof(WORD);
Info.MaskAddr = PhysAddr + 0x4;
if (!KernelLibIoControl(pPddObject->IsrHandle, IOCTL_GIISR_INFO, &Info, sizeof(Info), NULL, 0, NULL)) {
DEBUGMSG(ZONE_ERROR, (L"UHCD: KernelLibIoControl call failed. "));
}
}
}
// The PDD can supply a buffer of contiguous physical memory here, or can let the
// MDD try to allocate the memory from system RAM. We will use the HalAllocateCommonBuffer()
// API to allocate the memory and bus controller physical addresses and pass this information
// into the MDD.
if (GetRegistryPhysicalMemSize(szDriverRegKey,&pPddObject->dwPhysicalMemSize)) {
// A quarter for High priority Memory.
dwHPPhysicalMemSize = pPddObject->dwPhysicalMemSize/4;
// Align with page size.
pPddObject->dwPhysicalMemSize = (pPddObject->dwPhysicalMemSize + PAGE_SIZE -1) & ~(PAGE_SIZE -1);
dwHPPhysicalMemSize = ((dwHPPhysicalMemSize + PAGE_SIZE -1) & ~(PAGE_SIZE -1));
}
else {
pPddObject->dwPhysicalMemSize=0;
dwHPPhysicalMemSize = 0;
}
if (pPddObject->dwPhysicalMemSize<gcTotalAvailablePhysicalMemory) { // Setup Minimun requirement.
pPddObject->dwPhysicalMemSize = gcTotalAvailablePhysicalMemory;
dwHPPhysicalMemSize = gcHighPriorityPhysicalMemory;
}
pPddObject->AdapterObject.ObjectSize = sizeof(DMA_ADAPTER_OBJECT);
pPddObject->AdapterObject.InterfaceType = dwi.dwInterfaceType;
pPddObject->AdapterObject.BusNumber = dwi.dwBusNumber;
if ((pPddObject->pvVirtualAddress = HalAllocateCommonBuffer(&pPddObject->AdapterObject, pPddObject->dwPhysicalMemSize, &pPddObject->LogicalAddress, FALSE)) == NULL) {
goto InitializeUHCI_Error;
}
if (!(pobMem = HcdMdd_CreateMemoryObject(pPddObject->dwPhysicalMemSize, dwHPPhysicalMemSize, (PUCHAR) pPddObject->pvVirtualAddress, (PUCHAR) pPddObject->LogicalAddress.LowPart))) {
goto InitializeUHCI_Error;
}
if (!(pobUhcd = HcdMdd_CreateHcdObject(pPddObject, pobMem, szDriverRegKey, ioPortBase, dii.dwSysintr))) {
goto InitializeUHCI_Error;
}
// set LEGSUP here
LegSup = PCIConfig_ReadWord(dwi.dwBusNumber, dpi.dwDeviceNumber, dpi.dwFunctionNumber, 0xC0);
RETAILMSG(1, (TEXT("UHCD: LEGSUP=0x%08x "), LegSup));
LegSup = 0x2000;
PCIConfig_Write(dwi.dwBusNumber, dpi.dwDeviceNumber, dpi.dwFunctionNumber, 0xC0, LegSup, sizeof(LegSup));
pPddObject->lpvMemoryObject = pobMem;
pPddObject->lpvUhcdMddObject = pobUhcd;
_tcsncpy(pPddObject->szDriverRegKey, szDriverRegKey, MAX_PATH);
pPddObject->ioPortBase = ioPortBase;
pPddObject->dwSysIntr = dii.dwSysintr;
// PCI OHCI support suspend and resume
if ( hKey!=NULL) {
DWORD dwCapability;
DWORD dwType;
DWORD dwLength = sizeof(DWORD);
if (RegQueryValueEx(hKey, HCD_CAPABILITY_VALNAME, 0, &dwType, (PUCHAR)&dwCapability, &dwLength) == ERROR_SUCCESS)
HcdMdd_SetCapability (pobUhcd,dwCapability);
RegCloseKey(hKey);
}
return TRUE;
InitializeUHCI_Error:
if (pPddObject->IsrHandle) {
FreeIntChainHandler(pPddObject->IsrHandle);
pPddObject->IsrHandle = NULL;
}
if (pobUhcd)
HcdMdd_DestroyHcdObject(pobUhcd);
if (pobMem)
HcdMdd_DestroyMemoryObject(pobMem);
if(pPddObject->pvVirtualAddress)
HalFreeCommonBuffer(&pPddObject->AdapterObject, pPddObject->dwPhysicalMemSize, pPddObject->LogicalAddress, pPddObject->pvVirtualAddress, FALSE);
pPddObject->lpvMemoryObject = NULL;
pPddObject->lpvUhcdMddObject = NULL;
pPddObject->pvVirtualAddress = NULL;
if ( hKey!=NULL)
RegCloseKey(hKey);
return FALSE;
}
