//
// Reset Step 1 - Cleanup any "pending" operations
//
VOID
Hw11NdisResetStep1(
__in PHW Hw
)
{
NDIS_STATUS ndisStatus = NDIS_STATUS_SUCCESS;
// if we are being reset because our sends are hung, we do not want to assert. however
// if sends are not the cause, we do want to assert.
if (!Hw11ArePktsPending(Hw))
{
MPASSERT(FALSE);
}
//
// Set state as in reset
//
HW_ACQUIRE_HARDWARE_LOCK(Hw, FALSE);
HW_SET_ADAPTER_STATUS(Hw, HW_ADAPTER_IN_RESET);
HW_RELEASE_HARDWARE_LOCK(Hw, FALSE);
//
// Now cleanup everything
//
// Cancel scan (if it is running)
HwCancelScan(Hw);
// Wait for pending operations in the hardware to finish
HW_WAIT_FOR_ACTIVE_OPERATIONS_TO_FINISH(Hw);
// Wait for active sends to be finish
HW_WAIT_FOR_ACTIVE_SENDS_TO_FINISH(Hw);
// Disable interrupts
HwDisableInterrupt(Hw, HW_ISR_TRACKING_NDIS_RESET);
ndisStatus = HalResetStart(Hw->Hal);
MPASSERT(ndisStatus == NDIS_STATUS_SUCCESS);
HalStop(Hw->Hal);
HwFlushSendEngine(Hw, FALSE);
// Dont wait for pending receives here. They may be stuck in protocols on
// sends & the sends may be queued in the ports. That would cause a deadlock
}
NDIS_STATUS
HwSetChannel(
_In_ PHW Hw,
_In_ ULONG PhyId,
_In_ UCHAR Channel
)
{
// Must only be called for the active phy
MPASSERT(PhyId == Hw->PhyState.OperatingPhyId);
// When setting the channel, we dont check if we are not already on that
// channel. This is because this may be called after setting a PhyID and
// that does not necessarily set the channel
HW_ACQUIRE_HARDWARE_LOCK(Hw, FALSE);
HW_SET_ADAPTER_STATUS(Hw, HW_ADAPTER_IN_CHANNEL_SWITCH);
HW_RELEASE_HARDWARE_LOCK(Hw, FALSE);
// Wait for active send threads to finish. We dont wait
// for anything else on an HAL reset since some of those
// operations themselves may be causing the reset (Eg. channel
// switch of a scan)
HW_WAIT_FOR_ACTIVE_SENDS_TO_FINISH(Hw);
// MpTrace(COMP_TESTING, DBG_SERIOUS, ("HwSetChannel \n"));
HwDisableInterrupt(Hw, HW_ISR_TRACKING_CHANNEL);
// Flush the sends
HwFlushSendEngine(Hw, FALSE);
HalSwitchChannel(Hw->Hal,
PhyId,
Channel,
FALSE
);
HwResetSendEngine(Hw, FALSE);
HwResetReceiveEngine(Hw, FALSE);
HalStartReceive(Hw->Hal);
// MpTrace(COMP_TESTING, DBG_SERIOUS, ("HwSetChannel \n"));
HwEnableInterrupt(Hw, HW_ISR_TRACKING_CHANNEL);
HW_CLEAR_ADAPTER_STATUS(Hw, HW_ADAPTER_IN_CHANNEL_SWITCH);
return NDIS_STATUS_SUCCESS;
}