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Changed all Device mode LowLevel demos and Device Class drivers so that the control request is acknowledged and any data transferred as quickly as possible without any processing inbetween sections, so that long callbacks or event handlers will not break communications with the host by exceeding the maximum control request stage timeout period.

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This commit is contained in:
Dean Camera 2010-08-22 03:26:20 +00:00
parent 1be3436e89
commit 4cc7f5200b
18 changed files with 82 additions and 167 deletions
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10
Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
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@ -124,13 +124,10 @@ void EVENT_USB_Device_UnhandledControlRequest(void)
case REQ_SendEncapsulatedCommand:
if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
{
/* Clear the SETUP packet, ready for data transfer */
Endpoint_ClearSETUP();
/* Read in the RNDIS message into the message buffer */
Endpoint_Read_Control_Stream_LE(RNDISMessageBuffer, USB_ControlRequest.wLength);
/* Finalize the stream transfer to clear the last packet from the host */
Endpoint_ClearIN();
/* Process the RNDIS message */
@ -141,9 +138,6 @@ void EVENT_USB_Device_UnhandledControlRequest(void)
case REQ_GetEncapsulatedResponse:
if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
{
/* Clear the SETUP packet, ready for data transfer */
Endpoint_ClearSETUP();
/* Check if a response to the last message is ready */
if (!(MessageHeader->MessageLength))
{
@ -152,10 +146,10 @@ void EVENT_USB_Device_UnhandledControlRequest(void)
MessageHeader->MessageLength = 1;
}
Endpoint_ClearSETUP();
/* Write the message response data to the endpoint */
Endpoint_Write_Control_Stream_LE(RNDISMessageBuffer, MessageHeader->MessageLength);
/* Finalize the stream transfer to send the last packet or clear the host abort */
Endpoint_ClearOUT();
/* Reset the message header once again after transmission */