如何制作支持VMWare的Windows CE BSP
2006-11-19 22:01
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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)
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"
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;
}
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)
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"
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;
}
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