Anonymous user
PCI IDE Controller: Difference between revisions
m
→Read From ATAPI Drive
| [unchecked revision] | [unchecked revision] |
Line 806:
===Read From ATAPI Drive===
Let's move to a part which is quite easier, it is to read from ATAPI Drive, i will not make the function write to ATAPI Drive, because the write Operation is very
ATAPI Drive is different from ATA Drives, as it doesn't use ATA Commands, but it use the SCSI-Command-Set. Parameters are sent into a Packet, so it is Called: ATA-Packet Interface [ATAPI].
Line 827:
</source>
by this way, ide_wait_irq() will go into a while loop, which waits for the variable ide_irq_invoked to be set, then
<source lang="c">
Line 836:
* drive, is the drive number, which is from 0 to 3.
* lba, the lba address.
* numsects, number of sectors, it should always be 1, and if you wanna read more than one sector, re-execute this
* selector, Segment Selector.
* edi, offset in the selector.
Line 933:
<source lang="c">
// (IX):
// ------------------------------------------------------------------
for (i = 0; i < numsects; i++) {
| |||