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Fix low level host mode demos not correctly fetching the next endpoint when an invalid interface is discarded.

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Update the pipe configuration routines in the host mode class drivers so that they use the same new code to enumerate compatible devices to increase reliability. Add support to the host mode class drivers for non-sequential (but non-overlapping with other interface) pipe numbers.
This commit is contained in:
Dean Camera
2010-09-30 07:56:47 +00:00
parent 158afe9109
commit 7166c7ba3e
37 changed files with 563 additions and 366 deletions
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64
LUFA/Drivers/USB/Class/Host/MIDI.c
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@@ -40,50 +40,72 @@ uint8_t MIDI_Host_ConfigurePipes(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceI
uint16_t ConfigDescriptorSize,
void* ConfigDescriptorData)
{
uint8_t FoundEndpoints = 0;
USB_Descriptor_Endpoint_t* DataINEndpoint = NULL;
USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL;
memset(&MIDIInterfaceInfo->State, 0x00, sizeof(MIDIInterfaceInfo->State));
if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
return MIDI_ENUMERROR_InvalidConfigDescriptor;
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_MIDI_Host_NextMIDIStreamingInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
return MIDI_ENUMERROR_NoStreamingInterfaceFound;
return MIDI_ENUMERROR_NoCompatibleInterfaceFound;
}
while (FoundEndpoints != (MIDI_FOUND_DATAPIPE_IN | MIDI_FOUND_DATAPIPE_OUT))
MIDIInterfaceInfo->State.InterfaceNumber = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t)->InterfaceNumber;
while (!(DataINEndpoint) || !(DataOUTEndpoint))
{
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_MIDI_Host_NextMIDIStreamingDataEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
return MIDI_ENUMERROR_EndpointsNotFound;
DataINEndpoint = NULL;
DataOUTEndpoint = NULL;
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_MIDI_Host_NextMIDIStreamingInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
return MIDI_ENUMERROR_NoCompatibleInterfaceFound;
}
MIDIInterfaceInfo->State.InterfaceNumber = DESCRIPTOR_PCAST(ConfigDescriptorData,
USB_Descriptor_Interface_t)->InterfaceNumber;
continue;
}
USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
{
Pipe_ConfigurePipe(MIDIInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN,
EndpointData->EndpointAddress, EndpointData->EndpointSize,
MIDIInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
MIDIInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize;
FoundEndpoints |= MIDI_FOUND_DATAPIPE_IN;
}
DataINEndpoint = EndpointData;
else
{
Pipe_ConfigurePipe(MIDIInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT,
EndpointData->EndpointAddress, EndpointData->EndpointSize,
MIDIInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
MIDIInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize;
FoundEndpoints |= MIDI_FOUND_DATAPIPE_OUT;
}
DataOUTEndpoint = EndpointData;
}
for (uint8_t PipeNum = 1; PipeNum < PIPE_TOTAL_PIPES; PipeNum++)
{
if (PipeNum == MIDIInterfaceInfo->Config.DataINPipeNumber)
{
Pipe_ConfigurePipe(PipeNum, EP_TYPE_BULK, PIPE_TOKEN_IN,
DataINEndpoint->EndpointAddress, DataINEndpoint->EndpointSize,
MIDIInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
MIDIInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize;
}
else if (PipeNum == MIDIInterfaceInfo->Config.DataOUTPipeNumber)
{
Pipe_ConfigurePipe(PipeNum, EP_TYPE_BULK, PIPE_TOKEN_OUT,
DataOUTEndpoint->EndpointAddress, DataOUTEndpoint->EndpointSize,
MIDIInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
MIDIInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize;
}
}
MIDIInterfaceInfo->State.IsActive = true;
return MIDI_ENUMERROR_NoError;
}