* USBD_GetPdoRegistryParameters (implemented)
*/
-#include <wdm.h>
+#include <ntddk.h>
#include <usbdi.h>
-
+#include <debug.h>
#ifndef PLUGPLAY_REGKEY_DRIVER
#define PLUGPLAY_REGKEY_DRIVER 2
#endif
InterfaceList[InterfaceCount].InterfaceDescriptor != NULL;
InterfaceCount++)
{
- UrbSize += FIELD_OFFSET(USBD_INTERFACE_INFORMATION, Pipes);
- UrbSize += (InterfaceList[InterfaceCount].InterfaceDescriptor->bNumEndpoints) * sizeof(USBD_PIPE_INFORMATION);
+ UrbSize += sizeof(USBD_INTERFACE_INFORMATION);
+ UrbSize += (InterfaceList[InterfaceCount].InterfaceDescriptor->bNumEndpoints - 1) * sizeof(USBD_PIPE_INFORMATION);
}
UrbSize += sizeof(URB) + sizeof(USBD_INTERFACE_INFORMATION);
LONG DescriptorType
)
{
- PUSB_COMMON_DESCRIPTOR PComDes = StartPosition;
+ PUSB_COMMON_DESCRIPTOR CommonDescriptor;
+
+ /* use start position */
+ CommonDescriptor = (PUSB_COMMON_DESCRIPTOR)StartPosition;
- while(PComDes)
+
+ /* find next available descriptor */
+ while(CommonDescriptor)
{
- if (PComDes >= (PUSB_COMMON_DESCRIPTOR)
- ((PLONG)DescriptorBuffer + TotalLength) ) break;
- if (PComDes->bDescriptorType == DescriptorType) return PComDes;
- if (PComDes->bLength == 0) break;
- PComDes = (PUSB_COMMON_DESCRIPTOR)((ULONG_PTR)PComDes + PComDes->bLength);
+ if ((ULONG_PTR)CommonDescriptor >= ((ULONG_PTR)DescriptorBuffer + TotalLength))
+ {
+ /* end reached */
+ DPRINT1("End reached %p\n", CommonDescriptor);
+ return NULL;
+ }
+
+ DPRINT("CommonDescriptor Type %x Length %x\n", CommonDescriptor->bDescriptorType, CommonDescriptor->bLength);
+
+ /* is the requested one */
+ if (CommonDescriptor->bDescriptorType == DescriptorType)
+ {
+ /* it is */
+ return CommonDescriptor;
+ }
+
+ /* sanity check */
+ ASSERT(CommonDescriptor->bLength);
+
+ /* move to next descriptor */
+ CommonDescriptor = (PUSB_COMMON_DESCRIPTOR)((ULONG_PTR)CommonDescriptor + CommonDescriptor->bLength);
}
+
+ /* no descriptor found */
return NULL;
}
LONG InterfaceProtocol
)
{
- int x = 0;
- PUSB_INTERFACE_DESCRIPTOR UsbInterfaceDesc = StartPosition;
+ BOOLEAN Found;
+ PUSB_INTERFACE_DESCRIPTOR InterfaceDescriptor;
+
+ /* set to start position */
+ InterfaceDescriptor = (PUSB_INTERFACE_DESCRIPTOR)StartPosition;
- while(UsbInterfaceDesc)
+ DPRINT("USBD_ParseConfigurationDescriptorEx\n");
+ DPRINT("ConfigurationDescriptor %p Length %lu\n", ConfigurationDescriptor, ConfigurationDescriptor->wTotalLength);
+ DPRINT("CurrentOffset %p Offset %lu\n", StartPosition, ((ULONG_PTR)StartPosition - (ULONG_PTR)ConfigurationDescriptor));
+
+ while(InterfaceDescriptor)
{
- UsbInterfaceDesc = (PUSB_INTERFACE_DESCRIPTOR)
- USBD_ParseDescriptors(ConfigurationDescriptor,
- ConfigurationDescriptor->wTotalLength,
- UsbInterfaceDesc,
- USB_INTERFACE_DESCRIPTOR_TYPE);
+ /* get interface descriptor */
+ InterfaceDescriptor = (PUSB_INTERFACE_DESCRIPTOR) USBD_ParseDescriptors(ConfigurationDescriptor, ConfigurationDescriptor->wTotalLength, InterfaceDescriptor, USB_INTERFACE_DESCRIPTOR_TYPE);
+ if (!InterfaceDescriptor)
+ {
+ /* no more descriptors available */
+ break;
+ }
+
+ DPRINT("InterfaceDescriptor %p InterfaceNumber %x AlternateSetting %x Length %lu\n", InterfaceDescriptor, InterfaceDescriptor->bInterfaceNumber, InterfaceDescriptor->bAlternateSetting, InterfaceDescriptor->bLength);
- if (!UsbInterfaceDesc) break;
+ /* set found */
+ Found = TRUE;
+ /* is there an interface number provided */
if(InterfaceNumber != -1)
{
- if(InterfaceNumber != UsbInterfaceDesc->bInterfaceNumber) x = 1;
+ if(InterfaceNumber != InterfaceDescriptor->bInterfaceNumber)
+ {
+ /* interface number does not match */
+ Found = FALSE;
+ }
}
+
+ /* is there an alternate setting provided */
if(AlternateSetting != -1)
{
- if(AlternateSetting != UsbInterfaceDesc->bAlternateSetting) x = 1;
+ if(AlternateSetting != InterfaceDescriptor->bAlternateSetting)
+ {
+ /* alternate setting does not match */
+ Found = FALSE;
+ }
}
+
+ /* match on interface class */
if(InterfaceClass != -1)
{
- if(InterfaceClass != UsbInterfaceDesc->bInterfaceClass) x = 1;
+ if(InterfaceClass != InterfaceDescriptor->bInterfaceClass)
+ {
+ /* no match with interface class criteria */
+ Found = FALSE;
+ }
}
+
+ /* match on interface sub class */
if(InterfaceSubClass != -1)
{
- if(InterfaceSubClass != UsbInterfaceDesc->bInterfaceSubClass) x = 1;
+ if(InterfaceSubClass != InterfaceDescriptor->bInterfaceSubClass)
+ {
+ /* no interface sub class match */
+ Found = FALSE;
+ }
}
+
+ /* interface protocol criteria */
if(InterfaceProtocol != -1)
{
- if(InterfaceProtocol != UsbInterfaceDesc->bInterfaceProtocol) x = 1;
+ if(InterfaceProtocol != InterfaceDescriptor->bInterfaceProtocol)
+ {
+ /* no interface protocol match */
+ Found = FALSE;
+ }
+ }
+
+ if (Found)
+ {
+ /* the choosen one */
+ return InterfaceDescriptor;
}
- if (!x) return UsbInterfaceDesc;
+ /* sanity check */
+ ASSERT(InterfaceDescriptor->bLength);
- if (UsbInterfaceDesc->bLength == 0) break;
- UsbInterfaceDesc = UsbInterfaceDesc + UsbInterfaceDesc->bLength;
+ /* move to next descriptor */
+ InterfaceDescriptor = (PUSB_INTERFACE_DESCRIPTOR)((ULONG_PTR)InterfaceDescriptor + InterfaceDescriptor->bLength);
}
+
+ DPRINT("No Descriptor With InterfaceNumber %ld AlternateSetting %ld InterfaceClass %ld InterfaceSubClass %ld InterfaceProtocol %ld found\n", InterfaceNumber,
+ AlternateSetting, InterfaceClass, InterfaceSubClass, InterfaceProtocol);
+
return NULL;
}