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Disable flushing if the device doesn't support it or if it isn't enabled.

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svn path=/trunk/; revision=18139
This commit is contained in:
Hartmut Birr 2005-09-28 19:34:07 +00:00
parent b88678d1a3
commit 87bf9958a5
1 changed files with 23 additions and 6 deletions
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29
reactos/drivers/storage/atapi/atapi.c
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@ -1171,6 +1171,11 @@ AtapiFindDevices(PATAPI_MINIPORT_EXTENSION DeviceExtension,
DeviceExtension->DeviceFlags[UnitNumber] |= DEVICE_DMA_CMD;
}
#endif
if (!(DeviceExtension->DeviceParams[UnitNumber].SupportedFeatures83 & 0x1000) ||
!(DeviceExtension->DeviceParams[UnitNumber].EnabledFeatures86 & 0x1000))
{
DeviceExtension->DeviceFlags[UnitNumber] |= DEVICE_NO_FLUSH;
}
DeviceFound = TRUE;
}
else
@ -1212,6 +1217,22 @@ AtapiFindDevices(PATAPI_MINIPORT_EXTENSION DeviceExtension,
DeviceExtension->DeviceFlags[UnitNumber] |= DEVICE_DMA_CMD;
}
#endif
if (DeviceExtension->DeviceFlags[UnitNumber] & DEVICE_48BIT_ADDRESS)
{
if (!(DeviceExtension->DeviceParams[UnitNumber].SupportedFeatures83 & 0x2000) ||
!(DeviceExtension->DeviceParams[UnitNumber].EnabledFeatures86 & 0x2000))
{
DeviceExtension->DeviceFlags[UnitNumber] |= DEVICE_NO_FLUSH;
}
}
else
{
if (!(DeviceExtension->DeviceParams[UnitNumber].SupportedFeatures83 & 0x1000) ||
!(DeviceExtension->DeviceParams[UnitNumber].EnabledFeatures86 & 0x1000))
{
DeviceExtension->DeviceFlags[UnitNumber] |= DEVICE_NO_FLUSH;
}
}
DeviceFound = TRUE;
}
else
@ -2311,12 +2332,8 @@ AtapiFlushCache(PATAPI_MINIPORT_EXTENSION DeviceExtension,
* it doesn't make sense to flush cache on devices we don't
* write to.
*/
return SRB_STATUS_INVALID_REQUEST;
}
if (!(DeviceExtension->DeviceParams[Srb->TargetId].SupportedFeatures83 & 0x1000))
{
/* The device states it doesn't support the command */
/* The device states it doesn't support the command or it is disabled */
DPRINT("The drive doesn't support FLUSH_CACHE\n");
return SRB_STATUS_INVALID_REQUEST;
}