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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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88
LUFA/Drivers/USB/Class/Host/MassStorage.c
View file

@ -38,58 +38,78 @@
uint8_t MS_Host_ConfigurePipes(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo,
uint16_t ConfigDescriptorSize,
void* DeviceConfigDescriptor)
void* ConfigDescriptorData)
{
uint8_t FoundEndpoints = 0;
USB_Descriptor_Endpoint_t* DataINEndpoint = NULL;
USB_Descriptor_Endpoint_t* DataOUTEndpoint = NULL;
memset(&MSInterfaceInfo->State, 0x00, sizeof(MSInterfaceInfo->State));
if (DESCRIPTOR_TYPE(DeviceConfigDescriptor) != DTYPE_Configuration)
if (DESCRIPTOR_TYPE(ConfigDescriptorData) != DTYPE_Configuration)
return MS_ENUMERROR_InvalidConfigDescriptor;
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &DeviceConfigDescriptor,
DCOMP_MS_NextMSInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
return MS_ENUMERROR_NoMSInterfaceFound;
}
MSInterfaceInfo->State.InterfaceNumber = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Interface_t)->InterfaceNumber;
while (FoundEndpoints != (MS_FOUND_DATAPIPE_IN | MS_FOUND_DATAPIPE_OUT))
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_MS_Host_NextMSInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &DeviceConfigDescriptor,
DCOMP_MS_NextMSInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
return MS_ENUMERROR_NoCompatibleInterfaceFound;
}
MSInterfaceInfo->State.InterfaceNumber = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Interface_t)->InterfaceNumber;
while (!(DataINEndpoint) || !(DataOUTEndpoint))
{
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_MS_Host_NextMSInterfaceEndpoint) != DESCRIPTOR_SEARCH_COMP_Found)
{
return MS_ENUMERROR_EndpointsNotFound;
DataINEndpoint = NULL;
DataOUTEndpoint = NULL;
if (USB_GetNextDescriptorComp(&ConfigDescriptorSize, &ConfigDescriptorData,
DCOMP_MS_Host_NextMSInterface) != DESCRIPTOR_SEARCH_COMP_Found)
{
return MS_ENUMERROR_NoCompatibleInterfaceFound;
}
MSInterfaceInfo->State.InterfaceNumber = DESCRIPTOR_PCAST(ConfigDescriptorData,
USB_Descriptor_Interface_t)->InterfaceNumber;
continue;
}
USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(DeviceConfigDescriptor, USB_Descriptor_Endpoint_t);
USB_Descriptor_Endpoint_t* EndpointData = DESCRIPTOR_PCAST(ConfigDescriptorData, USB_Descriptor_Endpoint_t);
if (EndpointData->EndpointAddress & ENDPOINT_DESCRIPTOR_DIR_IN)
{
Pipe_ConfigurePipe(MSInterfaceInfo->Config.DataINPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_IN,
EndpointData->EndpointAddress, EndpointData->EndpointSize,
MSInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
MSInterfaceInfo->State.DataINPipeSize = EndpointData->EndpointSize;
FoundEndpoints |= MS_FOUND_DATAPIPE_IN;
}
DataINEndpoint = EndpointData;
else
DataOUTEndpoint = EndpointData;
}
for (uint8_t PipeNum = 1; PipeNum < PIPE_TOTAL_PIPES; PipeNum++)
{
if (PipeNum == MSInterfaceInfo->Config.DataINPipeNumber)
{
Pipe_ConfigurePipe(MSInterfaceInfo->Config.DataOUTPipeNumber, EP_TYPE_BULK, PIPE_TOKEN_OUT,
EndpointData->EndpointAddress, EndpointData->EndpointSize,
MSInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
MSInterfaceInfo->State.DataOUTPipeSize = EndpointData->EndpointSize;
FoundEndpoints |= MS_FOUND_DATAPIPE_OUT;
}
Pipe_ConfigurePipe(PipeNum, EP_TYPE_BULK, PIPE_TOKEN_IN,
DataINEndpoint->EndpointAddress, DataINEndpoint->EndpointSize,
MSInterfaceInfo->Config.DataINPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
MSInterfaceInfo->State.DataINPipeSize = DataINEndpoint->EndpointSize;
}
else if (PipeNum == MSInterfaceInfo->Config.DataOUTPipeNumber)
{
Pipe_ConfigurePipe(PipeNum, EP_TYPE_BULK, PIPE_TOKEN_OUT,
DataOUTEndpoint->EndpointAddress, DataOUTEndpoint->EndpointSize,
MSInterfaceInfo->Config.DataOUTPipeDoubleBank ? PIPE_BANK_DOUBLE : PIPE_BANK_SINGLE);
MSInterfaceInfo->State.DataOUTPipeSize = DataOUTEndpoint->EndpointSize;
}
}
MSInterfaceInfo->State.IsActive = true;
return MS_ENUMERROR_NoError;
}
static uint8_t DCOMP_MS_NextMSInterface(void* const CurrentDescriptor)
static uint8_t DCOMP_MS_Host_NextMSInterface(void* const CurrentDescriptor)
{
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Interface)
{
@ -107,7 +127,7 @@ static uint8_t DCOMP_MS_NextMSInterface(void* const CurrentDescriptor)
return DESCRIPTOR_SEARCH_NotFound;
}
static uint8_t DCOMP_MS_NextMSInterfaceEndpoint(void* const CurrentDescriptor)
static uint8_t DCOMP_MS_Host_NextMSInterfaceEndpoint(void* const CurrentDescriptor)
{
if (DESCRIPTOR_TYPE(CurrentDescriptor) == DTYPE_Endpoint)
{