Revision: 14428
http://sourceforge.net/p/edk2/code/14428
Author: erictian
Date: 2013-06-18 03:36:11 +0000 (Tue, 18 Jun 2013)
Log Message:
-----------
MdeModulePkg/AtaBus: wait up to 30s for ATA cmd response in Standby/Idle mode
to follow ATA spec
Signed-off-by: Feng Tian <[email protected]>
Reviewed-by: Star Zeng <[email protected]>
Modified Paths:
--------------
trunk/edk2/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c
Modified: trunk/edk2/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c
===================================================================
--- trunk/edk2/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c
2013-06-17 09:58:18 UTC (rev 14427)
+++ trunk/edk2/MdeModulePkg/Bus/Ata/AtaBusDxe/AtaPassThruExecute.c
2013-06-18 03:36:11 UTC (rev 14428)
@@ -10,7 +10,7 @@
for Security Protocol Specific layout. This implementation uses big endian
for
Cylinder register.
- Copyright (c) 2009 - 2012, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2009 - 2013, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD
License
which accompanies this distribution. The full text of the license may be
found at
@@ -541,19 +541,21 @@
//
// As AtaBus is used to manage ATA devices, we have to use the lowest
transfer rate to
// calculate the possible maximum timeout value for each read/write
operation.
+ // The timout value is rounded up to nearest integar and here an additional
30s is added
+ // to follow ATA spec in which it mentioned that the device may take up to
30s to respond
+ // commands in the Standby/Idle mode.
//
if (AtaDevice->UdmaValid) {
//
// Calculate the maximum timeout value for DMA read/write operation.
//
- Packet->Timeout = EFI_TIMER_PERIOD_SECONDS ((TransferLength *
AtaDevice->BlockMedia.BlockSize) / 2100000 + 1);
+ Packet->Timeout = EFI_TIMER_PERIOD_SECONDS (DivU64x32 (MultU64x32
(TransferLength, AtaDevice->BlockMedia.BlockSize), 2100000) + 31);
} else {
//
// Calculate the maximum timeout value for PIO read/write operation
//
- Packet->Timeout = EFI_TIMER_PERIOD_SECONDS ((TransferLength *
AtaDevice->BlockMedia.BlockSize) / 3300000 + 1);
+ Packet->Timeout = EFI_TIMER_PERIOD_SECONDS (DivU64x32 (MultU64x32
(TransferLength, AtaDevice->BlockMedia.BlockSize), 3300000) + 31);
}
-
return AtaDevicePassThru (AtaDevice, TaskPacket, Event);
}
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