Stopping a Network Device
NetDev_Stop() is called once each time an interface is stopped.
NetDev_Stop() must perform the following operations:
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- Disable the receiver and transmitter.
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- Disable all local MAC interrupt sources.
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- Clear all local MAC interrupt status flags.
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- For DMA devices, re-initialize all receive descriptors.
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- For DMA devices, free all transmit descriptors by calling
NetOS_IF_DeallocTaskPost()with the address of the transmit descriptor data areas.
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- For DMA devices, re-initialize all transmit descriptors.
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- Set
perrtoNET_DEV_ERR_NONEif no error occurs. Otherwise, setperrto an appropriate network device error code.