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From: 泛若不繫舟 on 20 Feb 2008 09:09
Hi all,

I have a PCI card and I need to create a KMDF bus driver and create a
static KMDF child driver above that bus driver.

The bus driver can get hardware resources and the WDF automatically
connects and disconnects interrupts for the driver .

In the WDM, I can create a IOCTL to get interrupt resource from bus
driver and connect/disconnect the interrupt in the child driver.

I have no idea how to do that in WDF, because WDF will do that
automatically. My KMDF child driver never get any hardware resouces
when loaded.

I try this method below, but it can't work. The child report there is
no available resources and fail to load the driver.

May you hlep me? Thanks. ^_^

Step1:
Copy the CM_PARTIAL_RESOURCE_DESCRIPTOR about interrupt into the bus
driver's device extension.

Step2:
//----------------------------------------------------------------------
// When the bus driver create PDO for that child
//----------------------------------------------------------------------
WDF_PDO_EVENT_CALLBACKS_INIT(&pdoCallbacks);
pdoCallbacks.EvtDeviceResourceRequirementsQuery =
BusPdo_EvtDeviceResourceRequirementsQuery;
WdfPdoInitSetEventCallbacks(pDeviceInit, &pdoCallbacks);

Step3

In the BusPdo_EvtDeviceResourceRequirementsQuery function,
I try to copy the interrupt resource from step 2. Like this

//-----------------------------------------------------------------------
NTSTATUS status = STATUS_SUCCESS;
WDFIORESLIST logConfig;
IO_RESOURCE_DESCRIPTOR descriptor;

status = WdfIoResourceListCreate(
IoResourceRequirementsList,
WDF_NO_OBJECT_ATTRIBUTES,
&logConfig
);
if(!NT_SUCCESS(status)){
return status;
}

RtlZeroMemory(&descriptor, sizeof(descriptor));

descriptor.Option = 0;
descriptor.Type = CmResourceTypeInterrupt;
descriptor.ShareDisposition = CmResourceShareShared
descriptor.Flags= RESOURCE_INTERRUPT_LEVEL_SENSITIVE
descriptor.u.Interrupt.MinimumVector =
fdoData->InterruptDescriptor.u.Interrupt.Vector;

descriptor.u.Interrupt.MaximumVector =
fdoData->InterruptDescriptor.u.Interrupt.Vector;

descriptor.u.Interrupt.TargetedProcessors=
fdoData->InterruptDescriptor.u.Interrupt.Affinity;

descriptor.u.Interrupt.AffinityPolicy= IrqPolicyMachineDefault;
descriptor.u.Interrupt.PriorityPolicy = IrqPriorityUndefined;

status = WdfIoResourceListAppendDescriptor(logConfig, &descriptor);
if(!NT_SUCCESS(status)){
return status;
}

status = WdfIoResourceRequirementsListAppendIoResList(

IoResourceRequirementsList,
logConfig
);

status = WdfIoResourceListAppendDescriptor(logConfig, &descriptor);
if(!NT_SUCCESS(status)){
return status;
}

return status;


From: Don Burn on 20 Feb 2008 09:24
Why do you want a bus driver here in the first place? Also, if you are
having one you should not have used an IOCTL but instead used the bus driver
model to start and stop the device giving it different resources? In
general please describe what your architecture is, since this sounds like a
design problem not an implementation question.


--
Don Burn (MVP, Windows DDK)
Windows 2k/XP/2k3 Filesystem and Driver Consulting
Website: http://www.windrvr.com
Blog: http://msmvps.com/blogs/WinDrvr
Remove StopSpam to reply



"?????" <ZivHuang(a)gmail.com> wrote in message
news:cd6eec86-218b-4fac-999f-211ff514c11a(a)h25g2000hsf.googlegroups.com...
> Hi all,
>
> I have a PCI card and I need to create a KMDF bus driver and create a
> static KMDF child driver above that bus driver.
>
> The bus driver can get hardware resources and the WDF automatically
> connects and disconnects interrupts for the driver .
>
> In the WDM, I can create a IOCTL to get interrupt resource from bus
> driver and connect/disconnect the interrupt in the child driver.
>
> I have no idea how to do that in WDF, because WDF will do that
> automatically. My KMDF child driver never get any hardware resouces
> when loaded.
>
> I try this method below, but it can't work. The child report there is
> no available resources and fail to load the driver.
>
> May you hlep me? Thanks. ^_^
>
> Step1:
> Copy the CM_PARTIAL_RESOURCE_DESCRIPTOR about interrupt into the bus
> driver's device extension.
>
> Step2:
> //----------------------------------------------------------------------
> // When the bus driver create PDO for that child
> //----------------------------------------------------------------------
> WDF_PDO_EVENT_CALLBACKS_INIT(&pdoCallbacks);
> pdoCallbacks.EvtDeviceResourceRequirementsQuery =
> BusPdo_EvtDeviceResourceRequirementsQuery;
> WdfPdoInitSetEventCallbacks(pDeviceInit, &pdoCallbacks);
>
> Step3
>
> In the BusPdo_EvtDeviceResourceRequirementsQuery function,
> I try to copy the interrupt resource from step 2. Like this
>
> //-----------------------------------------------------------------------
> NTSTATUS status = STATUS_SUCCESS;
> WDFIORESLIST logConfig;
> IO_RESOURCE_DESCRIPTOR descriptor;
>
> status = WdfIoResourceListCreate(
> IoResourceRequirementsList,
> WDF_NO_OBJECT_ATTRIBUTES,
> &logConfig
> );
> if(!NT_SUCCESS(status)){
> return status;
> }
>
> RtlZeroMemory(&descriptor, sizeof(descriptor));
>
> descriptor.Option = 0;
> descriptor.Type = CmResourceTypeInterrupt;
> descriptor.ShareDisposition = CmResourceShareShared
> descriptor.Flags= RESOURCE_INTERRUPT_LEVEL_SENSITIVE
> descriptor.u.Interrupt.MinimumVector =
> fdoData->InterruptDescriptor.u.Interrupt.Vector;
>
> descriptor.u.Interrupt.MaximumVector =
> fdoData->InterruptDescriptor.u.Interrupt.Vector;
>
> descriptor.u.Interrupt.TargetedProcessors=
> fdoData->InterruptDescriptor.u.Interrupt.Affinity;
>
> descriptor.u.Interrupt.AffinityPolicy= IrqPolicyMachineDefault;
> descriptor.u.Interrupt.PriorityPolicy = IrqPriorityUndefined;
>
> status = WdfIoResourceListAppendDescriptor(logConfig, &descriptor);
> if(!NT_SUCCESS(status)){
> return status;
> }
>
> status = WdfIoResourceRequirementsListAppendIoResList(
>
> IoResourceRequirementsList,
> logConfig
> );
>
> status = WdfIoResourceListAppendDescriptor(logConfig, &descriptor);
> if(!NT_SUCCESS(status)){
> return status;
> }
>
> return status;
>
>


From: 泛若不繫舟 on 20 Feb 2008 09:39
The chip has a radio function and that radio function can be shared
between different protocols.
So I may have child driver A and child driver B above that radio
function.

There is one BAR for radio control, one BAR for function A and the
other BAR for function B.
Each BAR has it's own interrupt enable/disable register, but there are
all in one chip.

So I need a bus driver for radion control, and may create one or two
child driver above that bus driver.
Thanks for your relpy. Thanks. ^_^

On 2$B7n(B20$BF|(B, $B2<8a(B10$B;~(B24$BJ,(B, "Don Burn" <b...(a)stopspam.windrvr.com> wrote:
> Why do you want a bus driver here in the first place? Also, if you are
> having one you should not have used an IOCTL but instead used the bus driver
> model to start and stop the device giving it different resources? In
> general please describe what your architecture is, since this sounds like a
> design problem not an implementation question.
>
> --
> Don Burn (MVP, Windows DDK)
> Windows 2k/XP/2k3 Filesystem and Driver Consulting
> Website:http://www.windrvr.com
> Blog:http://msmvps.com/blogs/WinDrvr
> Remove StopSpam to reply
>
> "?????" <ZivHu...(a)gmail.com> wrote in message
>
> news:cd6eec86-218b-4fac-999f-211ff514c11a(a)h25g2000hsf.googlegroups.com...
>
>
>
> > Hi all,
>
> > I have a PCI card and I need to create a KMDF bus driver and create a
> > static KMDF child driver above that bus driver.
>
> > The bus driver can get hardware resources and the WDF automatically
> > connects and disconnects interrupts for the driver .
>
> > In the WDM, I can create a IOCTL to get interrupt resource from bus
> > driver and connect/disconnect the interrupt in the child driver.
>
> > I have no idea how to do that in WDF, because WDF will do that
> > automatically. My KMDF child driver never get any hardware resouces
> > when loaded.
>
> > I try this method below, but it can't work. The child report there is
> > no available resources and fail to load the driver.
>
> > May you hlep me? Thanks. ^_^
>
> > Step1:
> > Copy the CM_PARTIAL_RESOURCE_DESCRIPTOR about interrupt into the bus
> > driver's device extension.
>
> > Step2:
> > //----------------------------------------------------------------------
> > // When the bus driver create PDO for that child
> > //----------------------------------------------------------------------
> > WDF_PDO_EVENT_CALLBACKS_INIT(&pdoCallbacks);
> > pdoCallbacks.EvtDeviceResourceRequirementsQuery =
> > BusPdo_EvtDeviceResourceRequirementsQuery;
> > WdfPdoInitSetEventCallbacks(pDeviceInit, &pdoCallbacks);
>
> > Step3
>
> > In the BusPdo_EvtDeviceResourceRequirementsQuery function,
> > I try to copy the interrupt resource from step 2. Like this
>
> > //-----------------------------------------------------------------------
> > NTSTATUS status = STATUS_SUCCESS;
> > WDFIORESLIST logConfig;
> > IO_RESOURCE_DESCRIPTOR descriptor;
>
> > status = WdfIoResourceListCreate(
> > IoResourceRequirementsList,
> > WDF_NO_OBJECT_ATTRIBUTES,
> > &logConfig
> > );
> > if(!NT_SUCCESS(status)){
> > return status;
> > }
>
> > RtlZeroMemory(&descriptor, sizeof(descriptor));
>
> > descriptor.Option = 0;
> > descriptor.Type = CmResourceTypeInterrupt;
> > descriptor.ShareDisposition = CmResourceShareShared
> > descriptor.Flags= RESOURCE_INTERRUPT_LEVEL_SENSITIVE
> > descriptor.u.Interrupt.MinimumVector =
> > fdoData->InterruptDescriptor.u.Interrupt.Vector;
>
> > descriptor.u.Interrupt.MaximumVector =
> > fdoData->InterruptDescriptor.u.Interrupt.Vector;
>
> > descriptor.u.Interrupt.TargetedProcessors=
> > fdoData->InterruptDescriptor.u.Interrupt.Affinity;
>
> > descriptor.u.Interrupt.AffinityPolicy= IrqPolicyMachineDefault;
> > descriptor.u.Interrupt.PriorityPolicy = IrqPriorityUndefined;
>
> > status = WdfIoResourceListAppendDescriptor(logConfig, &descriptor);
> > if(!NT_SUCCESS(status)){
> > return status;
> > }
>
> > status = WdfIoResourceRequirementsListAppendIoResList(
>
> > IoResourceRequirementsList,
> > logConfig
> > );
>
> > status = WdfIoResourceListAppendDescriptor(logConfig, &descriptor);
> > if(!NT_SUCCESS(status)){
> > return status;
> > }
>
> > return status;- $Bp,i6Ho0zMQJ8;z(B -
>
> - $Bp}<(Ho0zMQJ8;z(B -

From: Doron Holan [MSFT] on 20 Feb 2008 13:38
1) if you want to control the interrupts connected state, you can do this.
do not create a WDFINTERRUPT and then you can connect/disconnect however you
choose
2) you can assign your own resources to child devices. this requires
internal interfaces which are not exposed to KMDF or though KMDF. instead
you need to create a private interface to query for the interrupt resources
and assign them through this private interface, this article
http://blogs.msdn.com/doronh/archive/2007/10/24/how-to-share-hw-resources-with-another-driver-not-in-the-same-pnp-hierarchy.aspx
talks about the basic principles, although there are things you do not need
to worry about like the interrupt resource going away before the child

d

--
Please do not send e-mail directly to this alias. this alias is for
newsgroup purposes only.
This posting is provided "AS IS" with no warranties, and confers no rights.


"?????" <ZivHuang(a)gmail.com> wrote in message
news:cd6eec86-218b-4fac-999f-211ff514c11a(a)h25g2000hsf.googlegroups.com...
> Hi all,
>
> I have a PCI card and I need to create a KMDF bus driver and create a
> static KMDF child driver above that bus driver.
>
> The bus driver can get hardware resources and the WDF automatically
> connects and disconnects interrupts for the driver .
>
> In the WDM, I can create a IOCTL to get interrupt resource from bus
> driver and connect/disconnect the interrupt in the child driver.
>
> I have no idea how to do that in WDF, because WDF will do that
> automatically. My KMDF child driver never get any hardware resouces
> when loaded.
>
> I try this method below, but it can't work. The child report there is
> no available resources and fail to load the driver.
>
> May you hlep me? Thanks. ^_^
>
> Step1:
> Copy the CM_PARTIAL_RESOURCE_DESCRIPTOR about interrupt into the bus
> driver's device extension.
>
> Step2:
> //----------------------------------------------------------------------
> // When the bus driver create PDO for that child
> //----------------------------------------------------------------------
> WDF_PDO_EVENT_CALLBACKS_INIT(&pdoCallbacks);
> pdoCallbacks.EvtDeviceResourceRequirementsQuery =
> BusPdo_EvtDeviceResourceRequirementsQuery;
> WdfPdoInitSetEventCallbacks(pDeviceInit, &pdoCallbacks);
>
> Step3
>
> In the BusPdo_EvtDeviceResourceRequirementsQuery function,
> I try to copy the interrupt resource from step 2. Like this
>
> //-----------------------------------------------------------------------
> NTSTATUS status = STATUS_SUCCESS;
> WDFIORESLIST logConfig;
> IO_RESOURCE_DESCRIPTOR descriptor;
>
> status = WdfIoResourceListCreate(
> IoResourceRequirementsList,
> WDF_NO_OBJECT_ATTRIBUTES,
> &logConfig
> );
> if(!NT_SUCCESS(status)){
> return status;
> }
>
> RtlZeroMemory(&descriptor, sizeof(descriptor));
>
> descriptor.Option = 0;
> descriptor.Type = CmResourceTypeInterrupt;
> descriptor.ShareDisposition = CmResourceShareShared
> descriptor.Flags= RESOURCE_INTERRUPT_LEVEL_SENSITIVE
> descriptor.u.Interrupt.MinimumVector =
> fdoData->InterruptDescriptor.u.Interrupt.Vector;
>
> descriptor.u.Interrupt.MaximumVector =
> fdoData->InterruptDescriptor.u.Interrupt.Vector;
>
> descriptor.u.Interrupt.TargetedProcessors=
> fdoData->InterruptDescriptor.u.Interrupt.Affinity;
>
> descriptor.u.Interrupt.AffinityPolicy= IrqPolicyMachineDefault;
> descriptor.u.Interrupt.PriorityPolicy = IrqPriorityUndefined;
>
> status = WdfIoResourceListAppendDescriptor(logConfig, &descriptor);
> if(!NT_SUCCESS(status)){
> return status;
> }
>
> status = WdfIoResourceRequirementsListAppendIoResList(
>
> IoResourceRequirementsList,
> logConfig
> );
>
> status = WdfIoResourceListAppendDescriptor(logConfig, &descriptor);
> if(!NT_SUCCESS(status)){
> return status;
> }
>
> return status;
>
>

From: 泛若不繫舟 on 20 Feb 2008 21:22
Thanks Doronh,

For answer 1:

If I connect/disconnect interrupt by myself, which functions are the
right places to place WDM IoConnectInterrupt/IoDisconnectInterrupt?

If I connect/disconnect the interrupt by myself, how can I let the WDF
management EvtInterruptEnable/EvtInterruptDisable for me? Or just to
enable interrupt before leaving EvtDeviceD0Entry and disable interrupt
when EvtDeviceD0Exit called?

For answer 2:

If I get the interrupt resource from private interface, does the WDF
management all interrupt issue for me? Or I need to take care of all
thing by myself (I think it's the right answer. Orz)?

Thanks for your reply. ^_^

On 2$B7n(B21$BF|(B, $B>e8a(B2$B;~(B38$BJ,(B, "Doron Holan [MSFT]" <dor...(a)online.microsoft.com>
wrote:
> 1) if you want to control the interrupts connected state, you can do this.
> do not create a WDFINTERRUPT and then you can connect/disconnect however you
> choose
> 2) you can assign your own resources to child devices. this requires
> internal interfaces which are not exposed to KMDF or though KMDF. instead
> you need to create a private interface to query for the interrupt resources
> and assign them through this private interface, this articlehttp://blogs.msdn.com/doronh/archive/2007/10/24/how-to-share-hw-resou...
> talks about the basic principles, although there are things you do not need
> to worry about like the interrupt resource going away before the child
>
> d
>
> --
> Please do not send e-mail directly to this alias. this alias is for
> newsgroup purposes only.
> This posting is provided "AS IS" with no warranties, and confers no rights.
>
> "?????" <ZivHu...(a)gmail.com> wrote in message
>
> news:cd6eec86-218b-4fac-999f-211ff514c11a(a)h25g2000hsf.googlegroups.com...
>
>
>
> > Hi all,
>
> > I have a PCI card and I need to create a KMDF bus driver and create a
> > static KMDF child driver above that bus driver.
>
> > The bus driver can get hardware resources and the WDF automatically
> > connects and disconnects interrupts for the driver .
>
> > In the WDM, I can create a IOCTL to get interrupt resource from bus
> > driver and connect/disconnect the interrupt in the child driver.
>
> > I have no idea how to do that in WDF, because WDF will do that
> > automatically. My KMDF child driver never get any hardware resouces
> > when loaded.
>
> > I try this method below, but it can't work. The child report there is
> > no available resources and fail to load the driver.
>
> > May you hlep me? Thanks. ^_^
>
> > Step1:
> > Copy the CM_PARTIAL_RESOURCE_DESCRIPTOR about interrupt into the bus
> > driver's device extension.
>
> > Step2:
> > //----------------------------------------------------------------------
> > // When the bus driver create PDO for that child
> > //----------------------------------------------------------------------
> > WDF_PDO_EVENT_CALLBACKS_INIT(&pdoCallbacks);
> > pdoCallbacks.EvtDeviceResourceRequirementsQuery =
> > BusPdo_EvtDeviceResourceRequirementsQuery;
> > WdfPdoInitSetEventCallbacks(pDeviceInit, &pdoCallbacks);
>
> > Step3
>
> > In the BusPdo_EvtDeviceResourceRequirementsQuery function,
> > I try to copy the interrupt resource from step 2. Like this
>
> > //-----------------------------------------------------------------------
> > NTSTATUS status = STATUS_SUCCESS;
> > WDFIORESLIST logConfig;
> > IO_RESOURCE_DESCRIPTOR descriptor;
>
> > status = WdfIoResourceListCreate(
> > IoResourceRequirementsList,
> > WDF_NO_OBJECT_ATTRIBUTES,
> > &logConfig
> > );
> > if(!NT_SUCCESS(status)){
> > return status;
> > }
>
> > RtlZeroMemory(&descriptor, sizeof(descriptor));
>
> > descriptor.Option = 0;
> > descriptor.Type = CmResourceTypeInterrupt;
> > descriptor.ShareDisposition = CmResourceShareShared
> > descriptor.Flags= RESOURCE_INTERRUPT_LEVEL_SENSITIVE
> > descriptor.u.Interrupt.MinimumVector =
> > fdoData->InterruptDescriptor.u.Interrupt.Vector;
>
> > descriptor.u.Interrupt.MaximumVector =
> > fdoData->InterruptDescriptor.u.Interrupt.Vector;
>
> > descriptor.u.Interrupt.TargetedProcessors=
> > fdoData->InterruptDescriptor.u.Interrupt.Affinity;
>
> > descriptor.u.Interrupt.AffinityPolicy= IrqPolicyMachineDefault;
> > descriptor.u.Interrupt.PriorityPolicy = IrqPriorityUndefined;
>
> > status = WdfIoResourceListAppendDescriptor(logConfig, &descriptor);
> > if(!NT_SUCCESS(status)){
> > return status;
> > }
>
> > status = WdfIoResourceRequirementsListAppendIoResList(
>
> > IoResourceRequirementsList,
> > logConfig
> > );
>
> > status = WdfIoResourceListAppendDescriptor(logConfig, &descriptor);
> > if(!NT_SUCCESS(status)){
> > return status;
> > }
>
> > return status;- $Bp,i6Ho0zMQJ8;z(B -
>
> - $Bp}<(Ho0zMQJ8;z(B -

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