eisa_dma_disable(D3X)eisa_dma_disable(D3X)NAMEeisa_dma_disable - disable recognition of hardware requests on a DMA
channel
SYNOPSIS
#include <sys/eisa.h>
void eisa_dma_disable(vint_t adap, int chan);
Arguments
adap Bus adapter number (zero on an Indigo2).
chan Channel to be disabled.
DESCRIPTION
The eisa_dma_disable routine disables recognition of hardware requests on
the DMA channel chan. The channel is then released and made available for
other use.
The caller must ensure that it is acting on behalf of the channel owner,
and that it makes sense to release the channel. The caller must ensure
that the channel is in use for hardware-initiated DMA transfers and not
software-initiated transfers.
Return Values
None
Level
Base or Interrupt
Notes
Does not sleep
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