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Make Host mode Class drivers only set the class driver instance's state values once a compatible interface has been found within the device.

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This commit is contained in:
Dean Camera 2010-09-30 23:23:05 +00:00
parent 86367574e6
commit a1e453e900
9 changed files with 77 additions and 140 deletions
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23
LUFA/Drivers/USB/Class/Host/CDC.c
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@ -40,27 +40,20 @@ uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo
uint16_t ConfigDescriptorSize,
void* ConfigDescriptorData)
{
USB_Descriptor_Endpoint_t* DataINEndpoint = NULL;
USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL;
USB_Descriptor_Endpoint_t* NotificationEndpoint = NULL;
USB_Descriptor_Endpoint_t* DataINEndpoint = NULL;
USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL;
USB_Descriptor_Endpoint_t* NotificationEndpoint = NULL;
USB_Descriptor_Interface_t* CDCControlInterface = NULL;
memset(&CDCInterfaceInfo->State, 0x00, sizeof(CDCInterfaceInfo->State));
if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
return CDC_ENUMERROR_InvalidConfigDescriptor;
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_CDC_Host_NextCDCControlInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
return CDC_ENUMERROR_NoCompatibleInterfaceFound;
}
CDCInterfaceInfo->State.ControlInterfaceNumber = DESCRIPTOR_PCAST(ConfigDescriptorData,
USB_Descriptor_Interface_t)->InterfaceNumber;
while (!(DataINEndpoint) || !(DataOUTEndpoint) || !(NotificationEndpoint))
{
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
if (!(CDCControlInterface) ||
USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_CDC_Host_NextCDCInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
if (NotificationEndpoint)
@ -82,8 +75,7 @@ uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo
return CDC_ENUMERROR_NoCompatibleInterfaceFound;
}
CDCInterfaceInfo->State.ControlInterfaceNumber = DESCRIPTOR_PCAST(ConfigDescriptorData,
USB_Descriptor_Interface_t)->InterfaceNumber;
CDCControlInterface = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t);
NotificationEndpoint = NULL;
}
@ -135,6 +127,7 @@ uint8_t CDC_Host_ConfigurePipes(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo
}
}
CDCInterfaceInfo->State.ControlInterfaceNumber = CDCControlInterface->InterfaceNumber;
CDCInterfaceInfo->State.ControlLineStates.HostToDevice = (CDC_CONTROL_LINE_OUT_RTS | CDC_CONTROL_LINE_OUT_DTR);
CDCInterfaceInfo->State.ControlLineStates.DeviceToHost = (CDC_CONTROL_LINE_IN_DCD | CDC_CONTROL_LINE_IN_DSR);
CDCInterfaceInfo->State.IsActive = true;