Name
ata_bmdma_setup —
Set up PCI IDE BMDMA transaction
Synopsis
void ata_bmdma_setup (struct ata_queued_cmd * qc);
Arguments
qc
Info associated with this ATA transaction.
Description
Writes address of PRD table to device's PRD Table Address
register, sets the DMA control register, and calls
ops->exec_command to start the transfer.
May be used as the bmdma_setup entry in ata_port_operations.
LOCKING
spin_lock_irqsave(host_set lock)