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Fix support for the Hitachi CDR7730 IDE cdrom drive.

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Patch from pr1730.
Tested on our IDE cdrom drive farm...
This commit is contained in:
Søren Schmidt 1997-05-23 16:22:04 +00:00
parent 8c7b1f58de
commit 4aab40db6c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=26070
1 changed files with 4 additions and 2 deletions
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6
sys/i386/isa/atapi.c
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@ -612,7 +612,7 @@ int atapi_wait_cmd (struct atapi *ata, struct atapicmd *ac)
ireason = inb (ata->port + AR_IREASON);
ac->result.status = inb (ata->port + AR_STATUS);
phase = (ireason & (ARI_CMD | ARI_IN)) |
(ac->result.status & ARS_DRQ);
(ac->result.status & (ARS_DRQ | ARS_BSY));
if (phase == PHASE_CMDOUT)
break;
DELAY (10);
@ -929,9 +929,11 @@ struct atapires atapi_request_immediate (struct atapi *ata, int unit,
/* Do all needed i/o. */
while (atapi_io (ata, ac))
/* Wait for DRQ deassert. */
for (cnt=2000; cnt>0; --cnt)
for (cnt=2000; cnt>0; --cnt) {
if (! (inb (ata->port + AR_STATUS) & ARS_DRQ))
break;
DELAY(10);
}
}
return (ac->result);
}