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Added new USB_Host_ClearPipeStall() convenience function to clear a stall condition on an attached device's endpoint.

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Added new USB_Host_GetDeviceDescriptor() convenience function to retrieve the attached device's Device descriptor.

Make Pipe_ConfigurePipe() mask the given endpoint number against PIPE_EPNUM_MASK to ensure the endpoint IN direction bit is cleared to prevent endpoint type corruption.

Fix documentation mentioning Pipe_GetCurrentToken() function when real name is Pipe_GetPipeToken().
This commit is contained in:
Dean Camera 2009-06-18 07:53:51 +00:00
parent 2b21a1552d
commit e338cb6f32
15 changed files with 78 additions and 55 deletions
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35
LUFA/Drivers/USB/LowLevel/Host.c
View file

@ -302,4 +302,39 @@ uint8_t USB_Host_SetDeviceConfiguration(uint8_t ConfigNumber)
return USB_Host_SendControlRequest(NULL);
}
uint8_t USB_Host_GetDeviceDescriptor(USB_Descriptor_Device_t* DeviceDescriptorPtr)
{
USB_ControlRequest = (USB_Request_Header_t)
{
bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE),
bRequest: REQ_GetDescriptor,
wValue: (DTYPE_Device << 8),
wIndex: 0,
wLength: sizeof(USB_Descriptor_Device_t),
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(DeviceDescriptorPtr);
}
uint8_t USB_Host_ClearPipeStall(uint8_t EndpointNum)
{
if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)
EndpointNum |= (1 << 7);
USB_ControlRequest = (USB_Request_Header_t)
{
.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_ENDPOINT),
.bRequest = REQ_ClearFeature,
.wValue = FEATURE_ENDPOINT_HALT,
.wIndex = EndpointNum,
.wLength = 0,
};
Pipe_SelectPipe(PIPE_CONTROLPIPE);
return USB_Host_SendControlRequest(NULL);
}
#endif