ata_dev_select9
Select device 0/1 on ata bus
Usage
void ata_dev_select(struct ata_port * ap, unsigned int device, unsigned int wait, unsigned int can_sleep);
Arguments
ap
ATA channel to manipulate
device
ATA device (numbered from zero) to select
wait
non-zero to wait for Status register BSY bit to clear
can_sleep
non-zero if context allows sleeping
Overview
Use the method defined in the ATA specification to make either device 0, or device 1, active on the ATA channel.
This is a high-level version of ata_std_dev_select, which additionally provides the services of inserting the proper pauses and status polling, where needed.
Locking
caller.