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Check for a busy device in AtapiInterrupt().

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svn path=/trunk/; revision=3458
This commit is contained in:
Eric Kohl 2002-09-04 21:33:26 +00:00
parent 9191240ab4
commit 296c5258a4
1 changed files with 21 additions and 2 deletions
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23
reactos/drivers/storage/atapi/atapi.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: atapi.c,v 1.27 2002/08/28 18:36:18 ekohl Exp $
/* $Id: atapi.c,v 1.28 2002/09/04 21:33:26 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS ATAPI miniport driver
@ -704,7 +704,6 @@ AtapiInterrupt(IN PVOID DeviceExtension)
ULONG SectorSize;
ULONG TransferSize;
DPRINT("AtapiInterrupt() called!\n");
DevExt = (PATAPI_MINIPORT_EXTENSION)DeviceExtension;
@ -727,6 +726,26 @@ AtapiInterrupt(IN PVOID DeviceExtension)
IsLastBlock = FALSE;
DeviceStatus = IDEReadStatus(CommandPortBase);
DPRINT("DeviceStatus: %x\n", DeviceStatus);
if (DeviceStatus & IDE_SR_BUSY)
{
/* Wait for BUSY to drop */
for (Retries = 0; Retries < IDE_MAX_BUSY_RETRIES; Retries++)
{
DeviceStatus = IDEReadStatus(CommandPortBase);
if (!(DeviceStatus & IDE_SR_BUSY))
{
break;
}
ScsiPortStallExecution(10);
}
if (Retries >= IDE_MAX_BUSY_RETRIES)
{
DPRINT1("Drive is BUSY for too long\n");
/* FIXME: handle timeout */
}
}
if ((DeviceStatus & IDE_SR_ERR) &&
(Srb->Cdb[0] != SCSIOP_REQUEST_SENSE))