diff options
Diffstat (limited to 'DuetPkg/SataControllerDxe/SataController.c')
| -rw-r--r-- | DuetPkg/SataControllerDxe/SataController.c | 56 |
1 files changed, 49 insertions, 7 deletions
diff --git a/DuetPkg/SataControllerDxe/SataController.c b/DuetPkg/SataControllerDxe/SataController.c index e78915ad31..e5d10e234e 100644 --- a/DuetPkg/SataControllerDxe/SataController.c +++ b/DuetPkg/SataControllerDxe/SataController.c @@ -600,6 +600,37 @@ SataControllerStop ( );
}
+/**
+ Calculate the flat array subscript of a (Channel, Device) pair.
+
+ @param[in] SataPrivateData The private data structure corresponding to the
+ SATA controller that attaches the device for
+ which the flat array subscript is being
+ calculated.
+
+ @param[in] Channel The channel (ie. port) number on the SATA
+ controller that the device is attached to.
+
+ @param[in] Device The device number on the channel.
+
+ @return The flat array subscript suitable for indexing DisqualifiedModes,
+ IdentifyData, and IdentifyValid.
+**/
+STATIC
+UINTN
+FlatDeviceIndex (
+ IN CONST EFI_SATA_CONTROLLER_PRIVATE_DATA *SataPrivateData,
+ IN UINTN Channel,
+ IN UINTN Device
+ )
+{
+ ASSERT (SataPrivateData != NULL);
+ ASSERT (Channel < SataPrivateData->IdeInit.ChannelCount);
+ ASSERT (Device < SataPrivateData->DeviceCount);
+
+ return Channel * SataPrivateData->DeviceCount + Device;
+}
+
//
// Interface functions of IDE_CONTROLLER_INIT protocol
//
@@ -746,6 +777,8 @@ IdeInitSubmitData ( )
{
EFI_SATA_CONTROLLER_PRIVATE_DATA *SataPrivateData;
+ UINTN DeviceIndex;
+
SataPrivateData = SATA_CONTROLLER_PRIVATE_DATA_FROM_THIS (This);
ASSERT (SataPrivateData != NULL);
@@ -753,19 +786,21 @@ IdeInitSubmitData ( return EFI_INVALID_PARAMETER;
}
+ DeviceIndex = FlatDeviceIndex (SataPrivateData, Channel, Device);
+
//
// Make a local copy of device's IdentifyData and mark the valid flag
//
if (IdentifyData != NULL) {
CopyMem (
- &(SataPrivateData->IdentifyData[Channel * Device]),
+ &(SataPrivateData->IdentifyData[DeviceIndex]),
IdentifyData,
sizeof (EFI_IDENTIFY_DATA)
);
- SataPrivateData->IdentifyValid[Channel * Device] = TRUE;
+ SataPrivateData->IdentifyValid[DeviceIndex] = TRUE;
} else {
- SataPrivateData->IdentifyValid[Channel * Device] = FALSE;
+ SataPrivateData->IdentifyValid[DeviceIndex] = FALSE;
}
return EFI_SUCCESS;
@@ -821,6 +856,8 @@ IdeInitDisqualifyMode ( )
{
EFI_SATA_CONTROLLER_PRIVATE_DATA *SataPrivateData;
+ UINTN DeviceIndex;
+
SataPrivateData = SATA_CONTROLLER_PRIVATE_DATA_FROM_THIS (This);
ASSERT (SataPrivateData != NULL);
@@ -828,12 +865,14 @@ IdeInitDisqualifyMode ( return EFI_INVALID_PARAMETER;
}
+ DeviceIndex = FlatDeviceIndex (SataPrivateData, Channel, Device);
+
//
// Record the disqualified modes per channel per device. From ATA/ATAPI spec,
// if a mode is not supported, the modes higher than it is also not supported.
//
CopyMem (
- &(SataPrivateData->DisqualifiedModes[Channel * Device]),
+ &(SataPrivateData->DisqualifiedModes[DeviceIndex]),
BadModes,
sizeof (EFI_ATA_COLLECTIVE_MODE)
);
@@ -910,6 +949,7 @@ IdeInitCalculateMode ( EFI_ATA_COLLECTIVE_MODE *DisqualifiedModes;
UINT16 SelectedMode;
EFI_STATUS Status;
+ UINTN DeviceIndex;
SataPrivateData = SATA_CONTROLLER_PRIVATE_DATA_FROM_THIS (This);
ASSERT (SataPrivateData != NULL);
@@ -924,9 +964,11 @@ IdeInitCalculateMode ( return EFI_OUT_OF_RESOURCES;
}
- IdentifyData = &(SataPrivateData->IdentifyData[Channel * Device]);
- IdentifyValid = SataPrivateData->IdentifyValid[Channel * Device];
- DisqualifiedModes = &(SataPrivateData->DisqualifiedModes[Channel * Device]);
+ DeviceIndex = FlatDeviceIndex (SataPrivateData, Channel, Device);
+
+ IdentifyData = &(SataPrivateData->IdentifyData[DeviceIndex]);
+ IdentifyValid = SataPrivateData->IdentifyValid[DeviceIndex];
+ DisqualifiedModes = &(SataPrivateData->DisqualifiedModes[DeviceIndex]);
//
// Make sure we've got the valid identify data of the device from SubmitData()
|