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reactos/drivers/storage/ide/uniata/id_probe.cpp
Amine Khaldi 6c0c23cb53 [CMAKE] 
- Sync with trunk head (r50270)
- This also reverts r49298.

svn path=/branches/cmake-bringup/; revision=50271
2011-01-03 00:33:31 +00:00

3159 lines
117 KiB
C++
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/*++
Copyright (c) 2002-2010 Alexandr A. Telyatnikov (Alter)
Module Name:
id_probe.cpp
Abstract:
This module scans PCI and ISA buses for IDE controllers
and determines their Busmaster DMA capabilities
Author:
Alexander A. Telyatnikov (Alter)
Environment:
kernel mode only
Notes:
THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Revision History:
Some parts of hardware-specific code were taken from FreeBSD 4.3-6.1 ATA driver by
Søren Schmidt, Copyright (c) 1998-2007
Some parts of device detection code were taken from from standard ATAPI.SYS from NT4 DDK by
Mike Glass (MGlass)
Chuck Park (ChuckP)
Device search/init algorithm is completly rewritten by
Alter, Copyright (c) 2002-2004
Fixes for Native/Compatible modes of onboard IDE controller by
Vitaliy Vorobyov, deathsoft@yandex.ru (c) 2004
--*/
#include "stdafx.h"
PBUSMASTER_CONTROLLER_INFORMATION BMList = NULL;
ULONG BMListLen = 0;
ULONG IsaCount = 0;
ULONG MCACount = 0;
BOOLEAN FirstMasterOk = FALSE;
#ifndef UNIATA_CORE
UCHAR pciBuffer[256];
ULONG maxPciBus = 16;
PDRIVER_OBJECT SavedDriverObject = NULL;
// local routines
ULONG
NTAPI
UniataEnumBusMasterController__(
/* IN PVOID HwDeviceExtension,
IN PVOID Context,
IN PVOID BusInformation,
IN PCHAR ArgumentString,
IN OUT PPORT_CONFIGURATION_INFORMATION ConfigInfo,
OUT PBOOLEAN Again*/
);
VOID
NTAPI
AtapiDoNothing(VOID)
{
return;
} // end AtapiDoNothing()
#endif //UNIATA_CORE
/*
Get PCI address by ConfigInfo and RID
*/
ULONG
NTAPI
AtapiGetIoRange(
IN PVOID HwDeviceExtension,
IN PPORT_CONFIGURATION_INFORMATION ConfigInfo,
IN PPCI_COMMON_CONFIG pciData,
IN ULONG SystemIoBusNumber,
IN ULONG rid, //range id
IN ULONG offset,
IN ULONG length
)
{
ULONG_PTR io_start = 0;
KdPrint2((PRINT_PREFIX " AtapiGetIoRange:\n"));
if(ConfigInfo->NumberOfAccessRanges <= rid)
return 0;
KdPrint2((PRINT_PREFIX " AtapiGetIoRange: rid %#x, start %#x, offs %#x, len %#x, mem %#x\n",
rid,
ScsiPortConvertPhysicalAddressToUlong((*ConfigInfo->AccessRanges)[rid].RangeStart),
offset,
length,
(*ConfigInfo->AccessRanges)[rid].RangeInMemory
));
if((*ConfigInfo->AccessRanges)[rid].RangeInMemory) {
io_start =
// Get the system physical address for this IO range.
((ULONG_PTR)ScsiPortGetDeviceBase(HwDeviceExtension,
PCIBus /*ConfigInfo->AdapterInterfaceType*/,
SystemIoBusNumber /*ConfigInfo->SystemIoBusNumber*/,
ScsiPortConvertUlongToPhysicalAddress(
(ScsiPortConvertPhysicalAddressToUlong((*ConfigInfo->AccessRanges)[rid].RangeStart) &
~0x07/*PCI_ADDRESS_IOMASK*/) + offset
),
length,
(BOOLEAN)!(*ConfigInfo->AccessRanges)[rid].RangeInMemory)
);
KdPrint2((PRINT_PREFIX " AtapiGetIoRange: %#x\n", io_start));
// if(io_start > offset) {
return io_start;
// }
}
io_start = (pciData->u.type0.BaseAddresses[rid] & ~0x07/*PCI_ADDRESS_IOMASK*/) + offset;
// if(pciData->u.type0.BaseAddresses[rid] != 0) ;)
if(io_start > offset) {
if(/*(WinVer_Id() <= WinVer_NT) &&*/ offset && rid == 4) {
// MS atapi.sys does so for BusMaster controllers
(*ConfigInfo->AccessRanges)[rid+1].RangeStart =
ScsiPortConvertUlongToPhysicalAddress(io_start);
(*ConfigInfo->AccessRanges)[rid+1].RangeLength = length;
} else {
(*ConfigInfo->AccessRanges)[rid].RangeStart =
ScsiPortConvertUlongToPhysicalAddress(io_start);
(*ConfigInfo->AccessRanges)[rid].RangeLength = length;
}
} else {
io_start = 0;
}
KdPrint2((PRINT_PREFIX " AtapiGetIoRange: (2) %#x\n", io_start));
return io_start;
} // end AtapiGetIoRange()
#ifndef UNIATA_CORE
/*
Do nothing, but build list of supported IDE controllers
It is a hack, ScsiPort architecture assumes, that DriverEntry
can support only KNOWN Vendor/Device combinations.
Thus, we build list here. Later will pretend that always knew
about found devices.
We shall initiate ISA device init, but callback will use
Hal routines directly in order to scan PCI bus.
*/
VOID
NTAPI
UniataEnumBusMasterController(
IN PVOID DriverObject,
PVOID Argument2
)
{
UniataEnumBusMasterController__();
} // end UniataEnumBusMasterController()
BOOLEAN
NTAPI
UniataCheckPCISubclass(
BOOLEAN known,
ULONG RaidFlags,
UCHAR SubClass
)
{
if(known) {
if((RaidFlags & UNIATA_RAID_CONTROLLER) &&
SkipRaids) {
KdPrint2((PRINT_PREFIX "Skip RAID\n"));
return FALSE;
}
return TRUE;
}
KdPrint2((PRINT_PREFIX "unknown\n"));
switch(SubClass) {
case PCI_DEV_SUBCLASS_RAID:
if(SkipRaids) {
KdPrint2((PRINT_PREFIX "Skip RAID (2)\n"));
return FALSE;
}
break;
case PCI_DEV_SUBCLASS_IDE:
case PCI_DEV_SUBCLASS_ATA:
case PCI_DEV_SUBCLASS_SATA:
break;
default:
KdPrint2((PRINT_PREFIX "Subclass not supported\n"));
return FALSE;
}
return TRUE;
} // end UniataCheckPCISubclass()
/*
Device initializaton callback
Builds PCI device list using Hal routines (not ScsiPort wrappers)
*/
ULONG
NTAPI
UniataEnumBusMasterController__(
)
{
// PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
PVOID HwDeviceExtension;
PHW_DEVICE_EXTENSION deviceExtension = NULL;
PCI_SLOT_NUMBER slotData;
PCI_COMMON_CONFIG pciData;
ULONG busNumber;
ULONG slotNumber;
ULONG funcNumber;
BOOLEAN no_buses = FALSE;
BOOLEAN no_ranges = FALSE;
ULONG busDataRead;
// BOOLEAN SimplexOnly;
UCHAR vendorString[5];
UCHAR deviceString[5];
PUCHAR vendorStrPtr;
PUCHAR deviceStrPtr;
UCHAR BaseClass; // (ro)
UCHAR SubClass; // (ro)
ULONG VendorID;
ULONG DeviceID;
ULONG dev_id;
ULONG i;
ULONG pass=0;
ULONG RaidFlags;
BOOLEAN found;
BOOLEAN known;
UCHAR IrqForCompat = 10;
vendorStrPtr = vendorString;
deviceStrPtr = deviceString;
slotData.u.AsULONG = 0;
HwDeviceExtension =
deviceExtension = (PHW_DEVICE_EXTENSION)ExAllocatePool(NonPagedPool, sizeof(HW_DEVICE_EXTENSION));
if(!deviceExtension) {
return(SP_RETURN_NOT_FOUND);
}
RtlZeroMemory(deviceExtension, sizeof(HW_DEVICE_EXTENSION));
for(pass=0; pass<3; pass++) {
for(busNumber=0 ;busNumber<maxPciBus && !no_buses; busNumber++) {
for(slotNumber=0; slotNumber<PCI_MAX_DEVICES && !no_buses; slotNumber++) {
for(funcNumber=0; funcNumber<PCI_MAX_FUNCTION && !no_buses; funcNumber++) {
// KdPrint2((PRINT_PREFIX "-- BusID: %#x:%#x:%#x\n",busNumber,slotNumber,funcNumber));
slotData.u.bits.DeviceNumber = slotNumber;
slotData.u.bits.FunctionNumber = funcNumber;
busDataRead = HalGetBusData
//ScsiPortGetBusData
(
//HwDeviceExtension,
PCIConfiguration, busNumber, slotData.u.AsULONG,
&pciData, PCI_COMMON_HDR_LENGTH);
// no more buses
if(!busDataRead) {
no_buses = TRUE;
maxPciBus = busNumber;
break;
}
// no device in this slot
if(busDataRead == 2)
continue;
if(busDataRead < (ULONG)PCI_COMMON_HDR_LENGTH)
continue;
VendorID = pciData.VendorID;
DeviceID = pciData.DeviceID;
BaseClass = pciData.BaseClass;
SubClass = pciData.SubClass;
dev_id = VendorID | (DeviceID << 16);
//KdPrint2((PRINT_PREFIX "DevId = %8.8X Class = %4.4X/%4.4X\n", dev_id, BaseClass, SubClass ));
if(BaseClass != PCI_DEV_CLASS_STORAGE)
continue;
KdPrint2((PRINT_PREFIX "Storage Class\n"));
KdPrint2((PRINT_PREFIX "DevId = %8.8X Class = %4.4X/%4.4X\n", dev_id, BaseClass, SubClass ));
// look for known chipsets
found = FALSE;
known = FALSE;
if(deviceExtension) {
deviceExtension->slotNumber = slotData.u.AsULONG;
deviceExtension->SystemIoBusNumber = busNumber;
deviceExtension->DevID = dev_id;
deviceExtension->RevID = pciData.RevisionID;
deviceExtension->AdapterInterfaceType = PCIBus;
}
found = (BOOLEAN)AtapiRegCheckDevValue(deviceExtension, CHAN_NOT_SPECIFIED, DEVNUM_NOT_SPECIFIED, L"Include", 0);
if(!found) {
KdPrint2((PRINT_PREFIX "No force include, check exclude\n"));
found = !AtapiRegCheckDevValue(deviceExtension, CHAN_NOT_SPECIFIED, DEVNUM_NOT_SPECIFIED, L"Exclude", 0);
if(!found) {
KdPrint2((PRINT_PREFIX "Device excluded\n"));
continue;
}
}
//known = UniataChipDetect(HwDeviceExtension, NULL, -1, ConfigInfo, &SimplexOnly);
i = Ata_is_dev_listed((PBUSMASTER_CONTROLLER_INFORMATION)&BusMasterAdapters[0], VendorID, DeviceID, 0, NUM_BUSMASTER_ADAPTERS);
known = (i != BMLIST_TERMINATOR);
if(known) {
deviceExtension->FullDevName = BusMasterAdapters[i].FullDevName;
RaidFlags = BusMasterAdapters[i].RaidFlags;
} else {
deviceExtension->FullDevName = "Unknown Storage";
RaidFlags = 0;
}
found = UniataCheckPCISubclass(known, RaidFlags, SubClass);
if(!found) {
KdPrint2((PRINT_PREFIX "Subclass not supported\n"));
continue;
}
switch(dev_id) {
/* additional checks for some supported chipsets */
case 0xc6931080:
if (SubClass != PCI_DEV_SUBCLASS_IDE)
found = FALSE;
break;
/* unknown chipsets, try generic DMA if it seems possible */
default:
KdPrint2((PRINT_PREFIX "Default device\n"));
if(Ata_is_supported_dev(&pciData))
found = TRUE;
break;
}
if(found) {
KdPrint2((PRINT_PREFIX "found, pass %d\n", pass));
KdPrint2((PRINT_PREFIX "InterruptPin = %#x\n", pciData.u.type0.InterruptPin));
KdPrint2((PRINT_PREFIX "InterruptLine = %#x\n", pciData.u.type0.InterruptLine));
if(!pass && known) {
// Enable Busmastering, IO-space and Mem-space
KdPrint2((PRINT_PREFIX "Enabling Mem/Io spaces and busmastering...\n"));
KdPrint2((PRINT_PREFIX "Initial pciData.Command = %#x\n", pciData.Command));
for(i=0; i<3; i++) {
switch(i) {
case 0:
KdPrint2((PRINT_PREFIX "PCI_ENABLE_IO_SPACE\n"));
pciData.Command |= PCI_ENABLE_IO_SPACE;
break;
case 1:
KdPrint2((PRINT_PREFIX "PCI_ENABLE_MEMORY_SPACE\n"));
pciData.Command |= PCI_ENABLE_MEMORY_SPACE;
break;
case 2:
KdPrint2((PRINT_PREFIX "PCI_ENABLE_BUS_MASTER\n"));
pciData.Command |= PCI_ENABLE_BUS_MASTER;
break;
}
HalSetBusDataByOffset( PCIConfiguration, busNumber, slotData.u.AsULONG,
&(pciData.Command),
offsetof(PCI_COMMON_CONFIG, Command),
sizeof(pciData.Command));
KdPrint2((PRINT_PREFIX "InterruptLine = %#x\n", pciData.u.type0.InterruptLine));
// reread config space
busDataRead = HalGetBusData(PCIConfiguration, busNumber, slotData.u.AsULONG,
&pciData, PCI_COMMON_HDR_LENGTH);
KdPrint2((PRINT_PREFIX "New pciData.Command = %#x\n", pciData.Command));
}
KdPrint2((PRINT_PREFIX "Final pciData.Command = %#x\n", pciData.Command));
}
// validate Mem/Io ranges
no_ranges = TRUE;
for(i=0; i<PCI_TYPE0_ADDRESSES; i++) {
if(pciData.u.type0.BaseAddresses[i] & ~0x7) {
no_ranges = FALSE;
//break;
KdPrint2((PRINT_PREFIX "Range %d = %#x\n", i, pciData.u.type0.BaseAddresses[i]));
}
}
if(no_ranges) {
KdPrint2((PRINT_PREFIX "No PCI Mem/Io ranges found on device, skip it\n"));
continue;
}
if(pass) {
// fill list of detected devices
// it'll be used for further init
KdPrint2((PRINT_PREFIX "found suitable device\n"));
PBUSMASTER_CONTROLLER_INFORMATION newBMListPtr = BMList+BMListLen;
if(pass == 1) {
if(!IsMasterDev(&pciData)) {
continue;
}
if(AtapiRegCheckDevValue(deviceExtension, CHAN_NOT_SPECIFIED, DEVNUM_NOT_SPECIFIED, L"NativePCIMode", 0)) {
KdPrint2((PRINT_PREFIX "try switch to native mode\n"));
IrqForCompat = (UCHAR)AtapiRegCheckDevValue(deviceExtension, CHAN_NOT_SPECIFIED, DEVNUM_NOT_SPECIFIED, L"NativePCIModeIRQ", 0xff);
KdPrint2((PRINT_PREFIX "IrqForCompat = %#x\n", IrqForCompat));
if((IrqForCompat & 0xffffff00) /*||
(IrqForCompat & 0xff) > 31*/ ||
(IrqForCompat == 0xff)) {
IrqForCompat = 0x0b;
KdPrint2((PRINT_PREFIX "default to IRQ 11\n"));
}
//ChangePciConfig1(0x09, a | PCI_IDE_PROGIF_NATIVE_ALL); // ProgIf
pciData.ProgIf |= PCI_IDE_PROGIF_NATIVE_ALL;
HalSetBusDataByOffset( PCIConfiguration, busNumber, slotData.u.AsULONG,
&(pciData.ProgIf),
offsetof(PCI_COMMON_CONFIG, ProgIf),
sizeof(pciData.ProgIf));
// reread config space
busDataRead = HalGetBusData(PCIConfiguration, busNumber, slotData.u.AsULONG,
&pciData, PCI_COMMON_HDR_LENGTH);
// check if the device have switched to Native Mode
if(IsMasterDev(&pciData)) {
KdPrint2((PRINT_PREFIX "Can't switch to native mode\n"));
} else {
KdPrint2((PRINT_PREFIX "switched to native mode\n"));
KdPrint2((PRINT_PREFIX "InterruptPin = %#x\n", pciData.u.type0.InterruptPin));
KdPrint2((PRINT_PREFIX "InterruptLine = %#x\n", pciData.u.type0.InterruptLine));
// check if IRQ is assigned to device
if(!(pciData.u.type0.InterruptLine) ||
(pciData.u.type0.InterruptLine == 0xff)) {
KdPrint2((PRINT_PREFIX "assign interrupt for device\n"));
pciData.u.type0.InterruptLine = IrqForCompat;
HalSetBusDataByOffset( PCIConfiguration, busNumber, slotData.u.AsULONG,
&(pciData.u.type0.InterruptLine),
offsetof(PCI_COMMON_CONFIG, u.type0.InterruptLine),
sizeof(pciData.u.type0.InterruptLine));
} else {
KdPrint2((PRINT_PREFIX "Auto-assigned interrupt line %#x\n",
pciData.u.type0.InterruptLine));
IrqForCompat = pciData.u.type0.InterruptLine;
}
KdPrint2((PRINT_PREFIX "reread config space\n"));
// reread config space
busDataRead = HalGetBusData(PCIConfiguration, busNumber, slotData.u.AsULONG,
&pciData, PCI_COMMON_HDR_LENGTH);
KdPrint2((PRINT_PREFIX "busDataRead = %#x\n", busDataRead));
KdPrint2((PRINT_PREFIX "reread InterruptLine = %#x\n", pciData.u.type0.InterruptLine));
// check if we have successfully assigned IRQ to device
if((pciData.u.type0.InterruptLine != IrqForCompat) ||
(pciData.u.type0.InterruptLine == 0xff) ||
!pciData.u.type0.InterruptLine) {
KdPrint2((PRINT_PREFIX "can't assign interrupt for device, revert to compat mode\n"));
pciData.u.type0.InterruptLine = 0xff;
KdPrint2((PRINT_PREFIX "set IntrLine to 0xff\n"));
HalSetBusDataByOffset( PCIConfiguration, busNumber, slotData.u.AsULONG,
&(pciData.u.type0.InterruptLine),
offsetof(PCI_COMMON_CONFIG, u.type0.InterruptLine),
sizeof(pciData.u.type0.InterruptLine));
KdPrint2((PRINT_PREFIX "clear PCI_IDE_PROGIF_NATIVE_ALL\n"));
pciData.ProgIf &= ~PCI_IDE_PROGIF_NATIVE_ALL;
HalSetBusDataByOffset( PCIConfiguration, busNumber, slotData.u.AsULONG,
&(pciData.ProgIf),
offsetof(PCI_COMMON_CONFIG, ProgIf),
sizeof(pciData.ProgIf));
// reread config space
KdPrint2((PRINT_PREFIX "reread config space on revert\n"));
busDataRead = HalGetBusData(PCIConfiguration, busNumber, slotData.u.AsULONG,
&pciData, PCI_COMMON_HDR_LENGTH);
} else {
KdPrint2((PRINT_PREFIX "Assigned interrupt %#x for device\n", IrqForCompat));
KdPrint2((PRINT_PREFIX "continue detection on next round\n"));
continue;
}
}
}
} else
if(pass == 2) {
if(IsMasterDev(&pciData))
continue;
}
/* if(known) {
RtlCopyMemory(newBMListPtr, (PVOID)&(BusMasterAdapters[i]), sizeof(BUSMASTER_CONTROLLER_INFORMATION));
} else {*/
sprintf((PCHAR)vendorStrPtr, "%4.4lx", VendorID);
sprintf((PCHAR)deviceStrPtr, "%4.4lx", DeviceID);
RtlCopyMemory(&(newBMListPtr->VendorIdStr), (PCHAR)vendorStrPtr, 4);
RtlCopyMemory(&(newBMListPtr->DeviceIdStr), (PCHAR)deviceStrPtr, 4);
newBMListPtr->nVendorId = VendorID;
newBMListPtr->VendorId = (PCHAR)&(newBMListPtr->VendorIdStr);
newBMListPtr->VendorIdLength = 4;
newBMListPtr->nDeviceId = DeviceID;
newBMListPtr->DeviceId = (PCHAR)&(newBMListPtr->DeviceIdStr);
newBMListPtr->DeviceIdLength = 4;
newBMListPtr->RaidFlags = RaidFlags;
// }
newBMListPtr->slotNumber = slotData.u.AsULONG;
newBMListPtr->MasterDev = IsMasterDev(&pciData) ? 1 : 0;
newBMListPtr->busNumber = busNumber;
newBMListPtr->Known = known;
KdPrint2((PRINT_PREFIX "Add to BMList\n"));
} else {
KdPrint2((PRINT_PREFIX "count: BMListLen++\n"));
}
BMListLen++;
}
}
}
}
if(!pass) {
if(!BMListLen)
break;
BMList = (PBUSMASTER_CONTROLLER_INFORMATION)ExAllocatePool(NonPagedPool,
(BMListLen+1)*sizeof(BUSMASTER_CONTROLLER_INFORMATION));
if(!BMList) {
BMListLen=0;
break;
}
RtlZeroMemory(BMList, (BMListLen+1)*sizeof(BUSMASTER_CONTROLLER_INFORMATION));
no_buses = FALSE;
BMListLen=0;
}
}
KdPrint2((PRINT_PREFIX " BMListLen=%x\n", BMListLen));
if(deviceExtension) {
ExFreePool(deviceExtension);
}
return(SP_RETURN_NOT_FOUND);
} // end UniataEnumBusMasterController__()
/*
Wrapper for read PCI config space
*/
ULONG
NTAPI
ScsiPortGetBusDataByOffset(
IN PVOID HwDeviceExtension,
IN BUS_DATA_TYPE BusDataType,
IN ULONG BusNumber,
IN ULONG SlotNumber,
IN PVOID Buffer,
IN ULONG Offset,
IN ULONG Length
)
{
UCHAR tmp[256];
ULONG busDataRead;
if(Offset+Length > 256)
return 0;
busDataRead = HalGetBusData(
//ScsiPortGetBusData(HwDeviceExtension,
BusDataType,
BusNumber,
SlotNumber,
&tmp,
Offset+Length);
if(busDataRead < Offset+Length) {
if(busDataRead < Offset)
return 0;
return (Offset+Length-busDataRead);
}
RtlCopyMemory(Buffer, tmp+Offset, Length);
return Length;
} // end ScsiPortGetBusDataByOffset()
/*
Looks for devices from list on specified bus(es)/slot(s)
returnts its index in list.
If no matching record found, -1 is returned
*/
ULONG
NTAPI
AtapiFindListedDev(
PBUSMASTER_CONTROLLER_INFORMATION BusMasterAdapters,
ULONG lim,
IN PVOID HwDeviceExtension,
IN ULONG BusNumber,
IN ULONG SlotNumber,
OUT PCI_SLOT_NUMBER* _slotData // optional
)
{
PCI_SLOT_NUMBER slotData;
PCI_COMMON_CONFIG pciData;
ULONG busDataRead;
ULONG busNumber;
ULONG slotNumber;
ULONG funcNumber;
ULONG busNumber2;
ULONG slotNumber2;
ULONG i;
KdPrint2((PRINT_PREFIX "AtapiFindListedDev: lim=%x, Bus=%x, Slot=%x\n", lim, BusNumber, SlotNumber));
// set start/end bus
if(BusNumber == PCIBUSNUM_NOT_SPECIFIED) {
busNumber = 0;
busNumber2 = maxPciBus;
} else {
busNumber = BusNumber;
busNumber2 = BusNumber+1;
}
// set start/end slot
if(SlotNumber == PCISLOTNUM_NOT_SPECIFIED) {
slotNumber = 0;
slotNumber2 = PCI_MAX_DEVICES;
} else {
slotNumber = SlotNumber;
slotNumber2 = SlotNumber+1;
}
slotData.u.AsULONG = 0;
KdPrint2((PRINT_PREFIX " scanning range Bus %x-%x, Slot %x-%x\n", busNumber, busNumber2-1, slotNumber, slotNumber2-1));
for( ; busNumber < busNumber2 ; busNumber++ ) {
for( ; slotNumber < slotNumber2 ; slotNumber++) {
for(funcNumber=0; funcNumber < PCI_MAX_FUNCTION ; funcNumber++) {
slotData.u.bits.DeviceNumber = slotNumber;
slotData.u.bits.FunctionNumber = funcNumber;
busDataRead = HalGetBusData(
//ScsiPortGetBusData(HwDeviceExtension,
PCIConfiguration, busNumber, slotData.u.AsULONG,
&pciData, PCI_COMMON_HDR_LENGTH);
// no more buses (this should not happen)
if(!busDataRead) {
continue;
}
// no device in this slot
if(busDataRead == 2)
continue;
if(busDataRead < (ULONG)PCI_COMMON_HDR_LENGTH)
continue;
/*
KdPrint2((PRINT_PREFIX "AtapiFindListedDev: b:s:f(%x:%x:%x) %4.4x/%4.4x/%2.2x\n",
busNumber, slotNumber, funcNumber,
pciData.VendorID, pciData.DeviceID, pciData.RevisionID));
*/
i = Ata_is_dev_listed(BusMasterAdapters, pciData.VendorID, pciData.DeviceID, pciData.RevisionID, lim);
if(i != BMLIST_TERMINATOR) {
if(_slotData)
*_slotData = slotData;
KdPrint2((PRINT_PREFIX "AtapiFindListedDev: found\n"));
KdPrint2((PRINT_PREFIX "AtapiFindListedDev: b:s:f(%x:%x:%x) %4.4x/%4.4x/%2.2x\n",
busNumber, slotNumber, funcNumber,
pciData.VendorID, pciData.DeviceID, pciData.RevisionID));
return i;
}
}}}
return -1;
} // end AtapiFindListedDev()
/*
Looks for device with specified Device/Vendor and Revision
on specified Bus/Slot
*/
ULONG
NTAPI
AtapiFindDev(
IN PVOID HwDeviceExtension,
IN BUS_DATA_TYPE BusDataType,
IN ULONG BusNumber,
IN ULONG SlotNumber,
IN ULONG dev_id,
IN ULONG RevID
)
{
PCI_COMMON_CONFIG pciData;
ULONG funcNumber;
ULONG busDataRead;
ULONG VendorID;
ULONG DeviceID;
PCI_SLOT_NUMBER slotData;
slotData.u.AsULONG = SlotNumber;
// walk through all Function Numbers
for(funcNumber = 0; funcNumber < PCI_MAX_FUNCTION; funcNumber++) {
slotData.u.bits.FunctionNumber = funcNumber;
if(slotData.u.AsULONG == SlotNumber)
continue;
busDataRead = HalGetBusData(
//busDataRead = ScsiPortGetBusData(HwDeviceExtension,
PCIConfiguration,
BusNumber,
slotData.u.AsULONG,
&pciData,
PCI_COMMON_HDR_LENGTH);
if (busDataRead < (ULONG)PCI_COMMON_HDR_LENGTH) {
continue;
}
VendorID = pciData.VendorID;
DeviceID = pciData.DeviceID;
if(dev_id != (VendorID | (DeviceID << 16)) )
continue;
if(RevID >= pciData.RevisionID)
return 1;
}
return 0;
} // end AtapiFindDev()
#endif //UNIATA_CORE
ULONG
NTAPI
UniataFindCompatBusMasterController1(
IN PVOID HwDeviceExtension,
IN PVOID Context,
IN PVOID BusInformation,
IN PCHAR ArgumentString,
IN OUT PPORT_CONFIGURATION_INFORMATION ConfigInfo,
OUT PBOOLEAN Again
)
{
return UniataFindBusMasterController(
HwDeviceExtension,
(PVOID)0x00000000,
BusInformation,
ArgumentString,
ConfigInfo,
Again
);
} // end UniataFindCompatBusMasterController1()
ULONG
NTAPI
UniataFindCompatBusMasterController2(
IN PVOID HwDeviceExtension,
IN PVOID Context,
IN PVOID BusInformation,
IN PCHAR ArgumentString,
IN OUT PPORT_CONFIGURATION_INFORMATION ConfigInfo,
OUT PBOOLEAN Again
)
{
return UniataFindBusMasterController(
HwDeviceExtension,
(PVOID)0x80000000,
BusInformation,
ArgumentString,
ConfigInfo,
Again
);
} // end UniataFindCompatBusMasterController2()
BOOLEAN
NTAPI
UniataAllocateLunExt(
PHW_DEVICE_EXTENSION deviceExtension,
ULONG NewNumberChannels
)
{
PHW_LU_EXTENSION old_luns = NULL;
PHW_CHANNEL old_chans = NULL;
KdPrint2((PRINT_PREFIX "allocate Luns for %d channels\n", deviceExtension->NumberChannels));
old_luns = deviceExtension->lun;
old_chans = deviceExtension->chan;
if(old_luns || old_chans) {
if(NewNumberChannels == UNIATA_ALLOCATE_NEW_LUNS) {
KdPrint2((PRINT_PREFIX "already allocated!\n"));
return FALSE;
}
}
deviceExtension->lun = (PHW_LU_EXTENSION)ExAllocatePool(NonPagedPool, sizeof(HW_LU_EXTENSION) * (deviceExtension->NumberChannels+1) * IDE_MAX_LUN_PER_CHAN);
if (!deviceExtension->lun) {
KdPrint2((PRINT_PREFIX "!deviceExtension->lun => SP_RETURN_ERROR\n"));
return FALSE;
}
RtlZeroMemory(deviceExtension->lun, sizeof(HW_LU_EXTENSION) * (deviceExtension->NumberChannels+1) * IDE_MAX_LUN_PER_CHAN);
deviceExtension->chan = (PHW_CHANNEL)ExAllocatePool(NonPagedPool, sizeof(HW_CHANNEL) * (deviceExtension->NumberChannels+1));
if (!deviceExtension->chan) {
ExFreePool(deviceExtension->lun);
deviceExtension->lun = NULL;
KdPrint2((PRINT_PREFIX "!deviceExtension->chan => SP_RETURN_ERROR\n"));
return FALSE;
}
RtlZeroMemory(deviceExtension->chan, sizeof(HW_CHANNEL) * (deviceExtension->NumberChannels+1));
return TRUE;
} // end UniataAllocateLunExt()
/*++
Routine Description:
This function is called by the OS-specific port driver after
the necessary storage has been allocated, to gather information
about the adapter's configuration.
Arguments:
HwDeviceExtension - HBA miniport driver's adapter data storage
Context - Address of adapter count
BusInformation -
ArgumentString - Used to determine whether driver is client of ntldr or crash dump utility.
ConfigInfo - Configuration information structure describing HBA
Again - Indicates search for adapters to continue
Return Value:
ULONG
--*/
ULONG
NTAPI
UniataFindBusMasterController(
IN PVOID HwDeviceExtension,
IN PVOID Context,
IN PVOID BusInformation,
IN PCHAR ArgumentString,
IN OUT PPORT_CONFIGURATION_INFORMATION ConfigInfo,
OUT PBOOLEAN Again
)
{
PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
PHW_CHANNEL chan = NULL;
#ifndef UNIATA_CORE
// this buffer must be global for UNIATA_CORE build
PCI_COMMON_CONFIG pciData;
#endif //UNIATA_CORE
ULONG slotNumber;
ULONG busDataRead;
ULONG SystemIoBusNumber;
UCHAR vendorString[5];
UCHAR deviceString[5];
PUCHAR vendorStrPtr;
PUCHAR deviceStrPtr;
UCHAR BaseClass;
UCHAR SubClass;
ULONG VendorID;
ULONG DeviceID;
ULONG RevID;
ULONG dev_id;
PCI_SLOT_NUMBER slotData;
ULONG_PTR i;
ULONG channel;
ULONG c = 0;
PUCHAR ioSpace;
UCHAR statusByte;
ULONG bm_offset;
// UCHAR tmp8;
// ULONG irq;
BOOLEAN found = FALSE;
BOOLEAN MasterDev;
BOOLEAN simplexOnly = FALSE;
#ifndef UNIATA_CORE
#ifdef UNIATA_INIT_ON_PROBE
BOOLEAN skip_find_dev = FALSE;
#endif
#endif
BOOLEAN AltInit = FALSE;
SCSI_PHYSICAL_ADDRESS IoBasePort1;
SCSI_PHYSICAL_ADDRESS IoBasePort2;
PIDE_BUSMASTER_REGISTERS BaseIoAddressBM_0 = NULL;
PIDE_REGISTERS_1 BaseIoAddress1[IDE_MAX_CHAN];
PIDE_REGISTERS_2 BaseIoAddress2[IDE_MAX_CHAN];
RtlZeroMemory(&BaseIoAddress1, sizeof(BaseIoAddress1));
RtlZeroMemory(&BaseIoAddress2, sizeof(BaseIoAddress2));
NTSTATUS status;
PPORT_CONFIGURATION_INFORMATION_COMMON _ConfigInfo =
(PPORT_CONFIGURATION_INFORMATION_COMMON)ConfigInfo;
if(!WinVer_WDM_Model) {
*Again = FALSE;
} else {
*Again = TRUE;
}
KdPrint2((PRINT_PREFIX "UniataFindBusMasterController: Context=%x, BMListLen=%d\n", Context, BMListLen));
KdPrint2((PRINT_PREFIX "ConfigInfo->Length %x\n", ConfigInfo->Length));
if(ForceSimplex) {
KdPrint2((PRINT_PREFIX "ForceSimplex (1)\n"));
simplexOnly = TRUE;
}
if(ConfigInfo->AdapterInterfaceType == Isa) {
KdPrint2((PRINT_PREFIX "AdapterInterfaceType: Isa\n"));
}
if(InDriverEntry) {
i = (ULONG_PTR)Context;
if(i & 0x80000000) {
AltInit = TRUE;
}
i &= ~0x80000000;
channel = BMList[i].channel;
} else {
channel = 0;
for(i=0; i<BMListLen; i++) {
if(BMList[i].slotNumber == ConfigInfo->SlotNumber &&
BMList[i].busNumber == ConfigInfo->SystemIoBusNumber) {
break;
}
}
if(i >= BMListLen) {
KdPrint2((PRINT_PREFIX "unexpected device arrival\n"));
i = (ULONG_PTR)Context;
if(FirstMasterOk) {
channel = 1;
}
i &= ~0x80000000;
if(i >= BMListLen) {
KdPrint2((PRINT_PREFIX " => SP_RETURN_NOT_FOUND\n"));
goto exit_notfound;
}
}
BMList[i].channel = (UCHAR)channel;
}
bm_offset = channel ? ATA_BM_OFFSET1 : 0;
KdPrint2((PRINT_PREFIX "bm_offset %x, channel %x \n", bm_offset, channel));
if (!deviceExtension) {
KdPrint2((PRINT_PREFIX "!deviceExtension => SP_RETURN_ERROR\n"));
return SP_RETURN_ERROR;
}
RtlZeroMemory(deviceExtension, sizeof(HW_DEVICE_EXTENSION));
vendorStrPtr = vendorString;
deviceStrPtr = deviceString;
slotNumber = BMList[i].slotNumber;
SystemIoBusNumber = BMList[i].busNumber;
KdPrint2((PRINT_PREFIX "AdapterInterfaceType=%#x\n",ConfigInfo->AdapterInterfaceType));
KdPrint2((PRINT_PREFIX "IoBusNumber=%#x\n",ConfigInfo->SystemIoBusNumber));
KdPrint2((PRINT_PREFIX "slotNumber=%#x\n",slotNumber));
// this buffer must be global and already filled for UNIATA_CORE build
busDataRead = HalGetBusData(
//busDataRead = ScsiPortGetBusData(HwDeviceExtension,
PCIConfiguration,
SystemIoBusNumber,
slotNumber,
&pciData,
PCI_COMMON_HDR_LENGTH);
#ifndef UNIATA_CORE
if (busDataRead < (ULONG)PCI_COMMON_HDR_LENGTH) {
KdPrint2((PRINT_PREFIX "busDataRead < PCI_COMMON_HDR_LENGTH => SP_RETURN_ERROR\n"));
goto exit_error;
}
KdPrint2((PRINT_PREFIX "busDataRead\n"));
if (pciData.VendorID == PCI_INVALID_VENDORID) {
KdPrint2((PRINT_PREFIX "PCI_INVALID_VENDORID\n"));
goto exit_error;
}
#endif //UNIATA_CORE
VendorID = pciData.VendorID;
DeviceID = pciData.DeviceID;
BaseClass = pciData.BaseClass;
SubClass = pciData.SubClass;
RevID = pciData.RevisionID;
dev_id = VendorID | (DeviceID << 16);
slotData.u.AsULONG = slotNumber;
KdPrint2((PRINT_PREFIX "DevId = %8.8X Class = %4.4X/%4.4X\n", dev_id, BaseClass, SubClass ));
deviceExtension->slotNumber = slotNumber;
deviceExtension->SystemIoBusNumber = SystemIoBusNumber;
deviceExtension->DevID = dev_id;
deviceExtension->RevID = RevID;
deviceExtension->NumberChannels = 2; // default
deviceExtension->DevIndex = i;
_snprintf(deviceExtension->Signature, sizeof(deviceExtension->Signature),
"UATA%8.8x/%1.1x@%8.8x", dev_id, channel, slotNumber);
if(BaseClass != PCI_DEV_CLASS_STORAGE) {
KdPrint2((PRINT_PREFIX "BaseClass != PCI_DEV_CLASS_STORAGE => SP_RETURN_NOT_FOUND\n"));
goto exit_notfound;
}
KdPrint2((PRINT_PREFIX "Storage Class\n"));
// look for known chipsets
if(VendorID != BMList[i].nVendorId ||
DeviceID != BMList[i].nDeviceId) {
KdPrint2((PRINT_PREFIX "device not suitable\n"));
goto exit_notfound;
}
found = UniataCheckPCISubclass(BMList[i].Known, BMList[i].RaidFlags, SubClass);
if(!found) {
KdPrint2((PRINT_PREFIX "Subclass not supported\n"));
goto exit_notfound;
}
ConfigInfo->AlignmentMask = 0x00000003;
MasterDev = IsMasterDev(&pciData);
if(MasterDev) {
KdPrint2((PRINT_PREFIX "MasterDev (1)\n"));
deviceExtension->MasterDev = TRUE;
}
status = UniataChipDetect(HwDeviceExtension, &pciData, i, ConfigInfo, &simplexOnly);
switch(status) {
case STATUS_SUCCESS:
found = TRUE;
break;
case STATUS_NOT_FOUND:
found = FALSE;
break;
default:
KdPrint2((PRINT_PREFIX "FAILED => SP_RETURN_ERROR\n"));
goto exit_error;
}
KdPrint2((PRINT_PREFIX "ForceSimplex = %d\n", simplexOnly));
KdPrint2((PRINT_PREFIX "HwFlags = %x\n (0)", deviceExtension->HwFlags));
switch(dev_id) {
/* additional checks for some supported chipsets */
case 0xc6931080:
if (SubClass != PCI_DEV_SUBCLASS_IDE) {
KdPrint2((PRINT_PREFIX "0xc6931080, SubClass != PCI_DEV_SUBCLASS_IDE => found = FALSE\n"));
found = FALSE;
} else {
found = FALSE;
}
break;
/* unknown chipsets, try generic DMA if it seems possible */
default:
if (found)
break;
KdPrint2((PRINT_PREFIX "Default device\n"));
if(!Ata_is_supported_dev(&pciData)) {
KdPrint2((PRINT_PREFIX "!Ata_is_supported_dev => found = FALSE\n"));
found = FALSE;
} else {
KdPrint2((PRINT_PREFIX "Ata_is_supported_dev\n"));
found = TRUE;
}
deviceExtension->UnknownDev = TRUE;
break;
}
KdPrint2((PRINT_PREFIX "HwFlags = %x\n (1)", deviceExtension->HwFlags));
if(!found) {
KdPrint2((PRINT_PREFIX "!found => SP_RETURN_NOT_FOUND\n"));
goto exit_notfound;
}
KdPrint2((PRINT_PREFIX "HwFlags = %x\n (2)", deviceExtension->HwFlags));
KdPrint2((PRINT_PREFIX "found suitable device\n"));
/***********************************************************/
/***********************************************************/
/***********************************************************/
deviceExtension->UseDpc = TRUE;
KdPrint2((PRINT_PREFIX "HwFlags = %x\n (3)", deviceExtension->HwFlags));
if(deviceExtension->HwFlags & UNIATA_NO_DPC) {
/* CMD 649, ROSB SWK33, ICH4 */
KdPrint2((PRINT_PREFIX "UniataFindBusMasterController: UNIATA_NO_DPC (0)\n"));
deviceExtension->UseDpc = FALSE;
}
if(MasterDev) {
if((WinVer_Id() <= WinVer_NT) && AltInit && FirstMasterOk) {
// this is the 2nd attempt to init this controller by OUR driver
KdPrint2((PRINT_PREFIX "Skip primary/secondary claiming checks\n"));
} else {
if((channel==0) && ConfigInfo->AtdiskPrimaryClaimed) {
KdPrint2((PRINT_PREFIX "Error: Primary channel already claimed by another driver\n"));
goto exit_notfound;
}
if((channel==1) && ConfigInfo->AtdiskSecondaryClaimed) {
KdPrint2((PRINT_PREFIX "Error: Secondary channel already claimed by another driver\n"));
goto exit_notfound;
}
}
}
if(deviceExtension->AltRegMap) {
KdPrint2((PRINT_PREFIX " Non-standard registers layout\n"));
if(deviceExtension->HwFlags & UNIATA_SATA) {
KdPrint2((PRINT_PREFIX "UNIATA_SATA -> IsBusMaster == TRUE\n"));
deviceExtension->BusMaster = TRUE;
}
} else {
deviceExtension->BusMaster = FALSE;
if(WinVer_WDM_Model && !deviceExtension->UnknownDev) {
ULONG i;
// Enable Busmastering, IO-space and Mem-space
KdPrint2((PRINT_PREFIX "Enabling Mem/Io spaces and busmastering...\n"));
KdPrint2((PRINT_PREFIX "Initial pciData.Command = %#x\n", pciData.Command));
for(i=0; i<3; i++) {
switch(i) {
case 0:
KdPrint2((PRINT_PREFIX "PCI_ENABLE_IO_SPACE\n"));
pciData.Command |= PCI_ENABLE_IO_SPACE;
break;
case 1:
KdPrint2((PRINT_PREFIX "PCI_ENABLE_MEMORY_SPACE\n"));
pciData.Command |= PCI_ENABLE_MEMORY_SPACE;
break;
case 2:
KdPrint2((PRINT_PREFIX "PCI_ENABLE_BUS_MASTER\n"));
pciData.Command |= PCI_ENABLE_BUS_MASTER;
break;
}
HalSetBusDataByOffset( PCIConfiguration, SystemIoBusNumber, slotData.u.AsULONG,
&(pciData.Command),
offsetof(PCI_COMMON_CONFIG, Command),
sizeof(pciData.Command));
KdPrint2((PRINT_PREFIX "InterruptLine = %#x\n", pciData.u.type0.InterruptLine));
// reread config space
busDataRead = HalGetBusData(PCIConfiguration, SystemIoBusNumber, slotData.u.AsULONG,
&pciData, PCI_COMMON_HDR_LENGTH);
KdPrint2((PRINT_PREFIX "New pciData.Command = %#x\n", pciData.Command));
}
KdPrint2((PRINT_PREFIX "Final pciData.Command = %#x\n", pciData.Command));
}
// validate Mem/Io ranges
//no_ranges = TRUE;
{
ULONG i;
for(i=0; i<PCI_TYPE0_ADDRESSES; i++) {
if(pciData.u.type0.BaseAddresses[i] & ~0x7) {
//no_ranges = FALSE;
//break;
KdPrint2((PRINT_PREFIX "Range %d = %#x\n", i, pciData.u.type0.BaseAddresses[i]));
}
}
}
if(IsBusMaster(&pciData)) {
KdPrint2((PRINT_PREFIX "IsBusMaster == TRUE\n"));
BaseIoAddressBM_0 = (PIDE_BUSMASTER_REGISTERS)
(AtapiGetIoRange(HwDeviceExtension, ConfigInfo, &pciData, SystemIoBusNumber,
4, bm_offset, MasterDev ? 0x08 : 0x10/*ATA_BMIOSIZE*/)/* - bm_offset*/); //range id
if(BaseIoAddressBM_0) {
UniataInitMapBM(deviceExtension,
BaseIoAddressBM_0,
(*ConfigInfo->AccessRanges)[4].RangeInMemory ? TRUE : FALSE);
deviceExtension->BusMaster = TRUE;
deviceExtension->BaseIoAddressBM_0.Addr = (ULONG_PTR)BaseIoAddressBM_0;
if((*ConfigInfo->AccessRanges)[4].RangeInMemory) {
deviceExtension->BaseIoAddressBM_0.MemIo = TRUE;
}
}
KdPrint2((PRINT_PREFIX " BusMasterAddress (base): %#x\n", BaseIoAddressBM_0));
}
if(!deviceExtension->BusMaster) {
KdPrint2((PRINT_PREFIX " !BusMasterAddress -> PIO4\n"));
deviceExtension->MaxTransferMode = ATA_PIO4;
}
if(deviceExtension->BusMaster && !MasterDev) {
KdPrint2((PRINT_PREFIX "IsBusMaster == TRUE && !MasterDev\n"));
statusByte = AtapiReadPort1(&(deviceExtension->chan[0]), IDX_BM_Status);
KdPrint2((PRINT_PREFIX " statusByte = %x\n", statusByte));
if(statusByte == 0xff) {
KdPrint2((PRINT_PREFIX " invalid port ?\n"));
/*
if(BaseIoAddressBM_0) {
ScsiPortFreeDeviceBase(HwDeviceExtension,
BaseIoAddressBM_0);
BaseIoAddressBM_0 = NULL;
}
*/
} else
if(statusByte & BM_STATUS_SIMPLEX_ONLY) {
KdPrint2((PRINT_PREFIX " BM_STATUS => simplexOnly\n"));
simplexOnly = TRUE;
}
}
}
/*
* the Cypress chip is a mess, it contains two ATA functions, but
* both channels are visible on the first one.
* simply ignore the second function for now, as the right
* solution (ignoring the second channel on the first function)
* doesn't work with the crappy ATA interrupt setup on the alpha.
*/
if (dev_id == 0xc6931080 && slotData.u.bits.FunctionNumber > 1) {
KdPrint2((PRINT_PREFIX "dev_id == 0xc6931080 && FunctionNumber > 1 => exit_findbm\n"));
goto exit_findbm;
}
/* do extra chipset specific setups */
AtapiReadChipConfig(HwDeviceExtension, i, CHAN_NOT_SPECIFIED);
AtapiChipInit(HwDeviceExtension, i, CHAN_NOT_SPECIFIED_CHECK_CABLE);
simplexOnly |= deviceExtension->simplexOnly;
deviceExtension->simplexOnly |= simplexOnly;
KdPrint2((PRINT_PREFIX "simplexOnly = %d (2)", simplexOnly));
//TODO: fix hang with UseDpn=TRUE in Simplex mode
//deviceExtension->UseDpc = TRUE;
if(simplexOnly) {
KdPrint2((PRINT_PREFIX "simplexOnly => UseDpc = FALSE\n"));
deviceExtension->UseDpc = FALSE;
}
if(simplexOnly && MasterDev) {
if(deviceExtension->NumberChannels < 2) {
KdPrint2((PRINT_PREFIX "set NumberChannels = 2\n"));
deviceExtension->NumberChannels = 2;
if(BaseIoAddressBM_0) {
UniataInitMapBM(deviceExtension,
BaseIoAddressBM_0,
(*ConfigInfo->AccessRanges)[4].RangeInMemory ? TRUE : FALSE);
}
}
}
if((channel > 0) &&
(deviceExtension->NumberChannels > 1)) {
KdPrint2((PRINT_PREFIX "Error: channel > 0 && NumberChannels > 1\n"));
goto exit_findbm;
}
// Indicate number of buses.
ConfigInfo->NumberOfBuses = (UCHAR)(deviceExtension->NumberChannels);
if(!ConfigInfo->InitiatorBusId[0]) {
ConfigInfo->InitiatorBusId[0] = (CHAR)(IoGetConfigurationInformation()->ScsiPortCount);
KdPrint2((PRINT_PREFIX "set ConfigInfo->InitiatorBusId[0] = %#x\n", ConfigInfo->InitiatorBusId[0]));
}
// Indicate four devices can be attached to the adapter
ConfigInfo->MaximumNumberOfTargets = (UCHAR)(/*deviceExtension->NumberChannels **/ 2);
if (MasterDev) {
KdPrint2((PRINT_PREFIX "MasterDev (2)\n"));
/*
if((WinVer_Id() > WinVer_NT) ||
(deviceExtension->NumberChannels > 1)) {
KdPrint2((PRINT_PREFIX "2 channels & 2 irq for 1 controller Win 2000+\n"));
if (ConfigInfo->AdapterInterfaceType == MicroChannel) {
ConfigInfo->InterruptMode2 =
ConfigInfo->InterruptMode = LevelSensitive;
} else {
ConfigInfo->InterruptMode2 =
ConfigInfo->InterruptMode = Latched;
}
ConfigInfo->BusInterruptLevel = 14;
ConfigInfo->BusInterruptLevel2 = 15;
} else*/
if(simplexOnly) {
KdPrint2((PRINT_PREFIX "2 channels & 2 irq for 1 controller\n"));
if (ConfigInfo->AdapterInterfaceType == MicroChannel) {
ConfigInfo->InterruptMode2 =
ConfigInfo->InterruptMode = LevelSensitive;
} else {
ConfigInfo->InterruptMode2 =
ConfigInfo->InterruptMode = Latched;
}
ConfigInfo->BusInterruptLevel = 14;
ConfigInfo->BusInterruptLevel2 = 15;
} else {
KdPrint2((PRINT_PREFIX "1 channels & 1 irq for 1 controller\n"));
if (ConfigInfo->AdapterInterfaceType == MicroChannel) {
ConfigInfo->InterruptMode = LevelSensitive;
} else {
ConfigInfo->InterruptMode = Latched;
}
ConfigInfo->BusInterruptLevel = (channel == 0 ? 14 : 15);
}
} else {
KdPrint2((PRINT_PREFIX "!MasterDev\n"));
ConfigInfo->SlotNumber = slotNumber;
ConfigInfo->SystemIoBusNumber = SystemIoBusNumber;
/* primary and secondary channels share the same interrupt */
if(!ConfigInfo->BusInterruptVector ||
(ConfigInfo->BusInterruptVector != pciData.u.type0.InterruptLine)) {
KdPrint2((PRINT_PREFIX "patch irq line = %#x\n", pciData.u.type0.InterruptLine));
ConfigInfo->BusInterruptVector = pciData.u.type0.InterruptLine; // set default value
if(!ConfigInfo->BusInterruptVector) {
KdPrint2((PRINT_PREFIX "patch irq line (2) = 10\n"));
ConfigInfo->BusInterruptVector = 10;
}
}
}
ConfigInfo->MultipleRequestPerLu = TRUE;
ConfigInfo->AutoRequestSense = TRUE;
ConfigInfo->TaggedQueuing = TRUE;
if((WinVer_Id() >= WinVer_NT) ||
(ConfigInfo->Length >= sizeof(_ConfigInfo->comm) + sizeof(_ConfigInfo->nt4))) {
KdPrint2((PRINT_PREFIX "update ConfigInfo->nt4\n"));
_ConfigInfo->nt4.DeviceExtensionSize = sizeof(HW_DEVICE_EXTENSION);
_ConfigInfo->nt4.SpecificLuExtensionSize = sizeof(HW_LU_EXTENSION);
_ConfigInfo->nt4.SrbExtensionSize = sizeof(ATA_REQ);
}
if((WinVer_Id() > WinVer_2k) ||
(ConfigInfo->Length >= sizeof(_ConfigInfo->comm) + sizeof(_ConfigInfo->nt4) + sizeof(_ConfigInfo->w2k))) {
KdPrint2((PRINT_PREFIX "update ConfigInfo->w2k\n"));
_ConfigInfo->w2k.Dma64BitAddresses = 0;
_ConfigInfo->w2k.ResetTargetSupported = TRUE;
_ConfigInfo->w2k.MaximumNumberOfLogicalUnits = 2;
}
// Save the Interrupe Mode for later use
deviceExtension->InterruptMode = ConfigInfo->InterruptMode;
deviceExtension->BusInterruptLevel = ConfigInfo->BusInterruptLevel;
deviceExtension->BusInterruptVector = ConfigInfo->BusInterruptVector;
deviceExtension->Channel = channel;
deviceExtension->DevIndex = i;
deviceExtension->OrigAdapterInterfaceType
= ConfigInfo->AdapterInterfaceType;
deviceExtension->AlignmentMask = ConfigInfo->AlignmentMask;
deviceExtension->AdapterInterfaceType = PCIBus;
found = FALSE;
if(deviceExtension->BusMaster) {
KdPrint2((PRINT_PREFIX "Reconstruct ConfigInfo\n"));
ConfigInfo->MapBuffers = TRUE;
#ifdef USE_OWN_DMA
ConfigInfo->NeedPhysicalAddresses = FALSE;
#else
ConfigInfo->NeedPhysicalAddresses = TRUE;
#endif //USE_OWN_DMA
if(!MasterDev) {
KdPrint2((PRINT_PREFIX "set Dma32BitAddresses\n"));
ConfigInfo->Dma32BitAddresses = TRUE;
}
// thanks to Vitaliy Vorobyov aka deathsoft@yandex.ru for
// better solution:
if(AltInit) {
// I'm sorry, I have to do this
// when Win doesn't
if(ConfigInfo->AdapterInterfaceType == Isa /*&&
// InDriverEntry*/) {
KdPrint2((PRINT_PREFIX "AdapterInterfaceType Isa => PCIBus\n"));
ConfigInfo->AdapterInterfaceType = PCIBus;
}
if(ConfigInfo->AdapterInterfaceType == PCIBus /*&&
// InDriverEntry*/) {
KdPrint2((PRINT_PREFIX "AdapterInterfaceType PCIBus, update address\n"));
ConfigInfo->SlotNumber = slotNumber;
ConfigInfo->SystemIoBusNumber = SystemIoBusNumber;
}
}
#ifndef USE_OWN_DMA
ConfigInfo->Master = TRUE;
ConfigInfo->DmaWidth = Width16Bits;
#endif //USE_OWN_DMA
ConfigInfo->CachesData = TRUE;
ConfigInfo->ScatterGather = TRUE;
}
// Note: now we can support only 4 channels !!!
// in order to add support for multichannel controllers we must rewrite
// io-range claiming algorithm
KdPrint2((PRINT_PREFIX "BMList[i].channel %#x, NumberChannels %#x, channel %#x\n",BMList[i].channel, deviceExtension->NumberChannels, channel));
for (; channel < (BMList[i].channel + deviceExtension->NumberChannels); channel++, c++) {
KdPrint2((PRINT_PREFIX "de %#x, Channel %#x\n",deviceExtension, channel));
//PrintNtConsole("de %#x, Channel %#x, nchan %#x\n",deviceExtension, channel, deviceExtension->NumberChannels);
chan = &deviceExtension->chan[c];
KdPrint2((PRINT_PREFIX "chan = %#x\n", chan));
//PrintNtConsole("chan = %#x, c=%#x\n", chan, c);
AtapiSetupLunPtrs(chan, deviceExtension, c);
/* do extra channel-specific setups */
AtapiReadChipConfig(HwDeviceExtension, i, channel);
//AtapiChipInit(HwDeviceExtension, i, channel);
if(deviceExtension->AltRegMap) {
KdPrint2((PRINT_PREFIX " Non-standard registers layout\n"));
} else {
// Check if the range specified is not used by another driver
if(MasterDev) {
KdPrint2((PRINT_PREFIX "set AccessRanges\n"));
(*ConfigInfo->AccessRanges)[channel * 2 + 0].RangeStart =
ScsiPortConvertUlongToPhysicalAddress(channel ? IO_WD2 : IO_WD1);
(*ConfigInfo->AccessRanges)[channel * 2 + 0].RangeLength = ATA_IOSIZE;
(*ConfigInfo->AccessRanges)[channel * 2 + 1].RangeStart =
ScsiPortConvertUlongToPhysicalAddress((channel ? IO_WD2 : IO_WD1) + ATA_ALTOFFSET);
(*ConfigInfo->AccessRanges)[channel * 2 + 1].RangeLength = ATA_ALTIOSIZE;
// do not claim 2nd BM io-range for Secondary channel of
// Compatible-mode controllers
if(/*(WinVer_Id() <= WinVer_NT) &&*/ !c && channel == 1) {
KdPrint2((PRINT_PREFIX "cheat ScsiPort for 2nd channel, BM io-range\n"));
(*ConfigInfo->AccessRanges)[4].RangeStart = ScsiPortConvertUlongToPhysicalAddress(0);
(*ConfigInfo->AccessRanges)[4].RangeLength = 0;
}
}
IoBasePort1 = (*ConfigInfo->AccessRanges)[channel * 2 + 0].RangeStart;
IoBasePort2 = (*ConfigInfo->AccessRanges)[channel * 2 + 1].RangeStart;
if(!MasterDev) {
if(!IoBasePort1.QuadPart || !IoBasePort2.QuadPart) {
KdPrint2((PRINT_PREFIX "ScsiPortValidateRange failed (1)\n"));
continue;
}
}
if(!ScsiPortValidateRange(HwDeviceExtension,
PCIBus /*ConfigInfo->AdapterInterfaceType*/,
SystemIoBusNumber /*ConfigInfo->SystemIoBusNumber*/,
IoBasePort1,
ATA_IOSIZE,
TRUE) ) {
KdPrint2((PRINT_PREFIX "ScsiPortValidateRange failed (1)\n"));
continue;
}
if(!ScsiPortValidateRange(HwDeviceExtension,
PCIBus /*ConfigInfo->AdapterInterfaceType*/,
SystemIoBusNumber /*ConfigInfo->SystemIoBusNumber*/,
IoBasePort2,
ATA_ALTIOSIZE,
TRUE) ) {
KdPrint2((PRINT_PREFIX "ScsiPortValidateRange failed (2)\n"));
continue;
}
KdPrint2((PRINT_PREFIX "Getting IO ranges\n"));
// Ok, translate adresses to io-space
if(ScsiPortConvertPhysicalAddressToUlong(IoBasePort2)) {
if(!(MasterDev /* || USE_16_BIT */)) {
KdPrint2((PRINT_PREFIX "!MasterDev mode\n"));
IoBasePort2 = ScsiPortConvertUlongToPhysicalAddress(
ScsiPortConvertPhysicalAddressToUlong(IoBasePort2) + 2);
}
} else {
KdPrint2((PRINT_PREFIX "use relative IoBasePort2\n"));
IoBasePort2 = ScsiPortConvertUlongToPhysicalAddress(
ScsiPortConvertPhysicalAddressToUlong(IoBasePort1) + ATA_PCCARD_ALTOFFSET);
}
// Get the system physical address for this IO range.
ioSpace = (PUCHAR)ScsiPortGetDeviceBase(HwDeviceExtension,
PCIBus /*ConfigInfo->AdapterInterfaceType*/,
SystemIoBusNumber /*ConfigInfo->SystemIoBusNumber*/,
IoBasePort1,
ATA_IOSIZE,
TRUE);
KdPrint2((PRINT_PREFIX "IO range 1 %#x\n",ioSpace));
// Check if ioSpace accessible.
if (!ioSpace) {
KdPrint2((PRINT_PREFIX "!ioSpace\n"));
continue;
}
/*
if(deviceExtension->BusMaster) {
KdPrint2((PRINT_PREFIX "set BusMaster io-range in DO\n"));
// bm_offset already includes (channel ? ATA_BM_OFFSET1 : 0)
deviceExtension->BaseIoAddressBM[c] = (PIDE_BUSMASTER_REGISTERS)
((ULONG)(deviceExtension->BaseIoAddressBM_0) + bm_offset + (c ? ATA_BM_OFFSET1 : 0));
}
*/
//deviceExtension->BaseIoAddress1[c] = (PIDE_REGISTERS_1)(ioSpace);
BaseIoAddress1[c] = (PIDE_REGISTERS_1)(ioSpace);
// Get the system physical address for the second IO range.
ioSpace = (PUCHAR)ScsiPortGetDeviceBase(HwDeviceExtension,
PCIBus /*ConfigInfo->AdapterInterfaceType*/,
SystemIoBusNumber /*ConfigInfo->SystemIoBusNumber*/,
IoBasePort2,
ATA_ALTIOSIZE,
TRUE);
KdPrint2((PRINT_PREFIX "IO range 2 %#x\n",ioSpace));
BaseIoAddress2[c] = (PIDE_REGISTERS_2)(ioSpace);
if(!ioSpace) {
// Release all allocated resources
KdPrint2((PRINT_PREFIX "!deviceExtension->BaseIoAddress2\n"));
//ioSpace = (PUCHAR)BaseIoAddress1[c];
// goto free_iospace_1;
found = FALSE;
goto exit_findbm;
}
UniataInitMapBase(chan, BaseIoAddress1[c], BaseIoAddress2[c]);
}
//ioSpace = (PUCHAR)(deviceExtension->BaseIoAddress1[c]);
KdPrint2((PRINT_PREFIX "IDX_IO1 %x->%x(%s)\n",
IDX_IO1,
chan->RegTranslation[IDX_IO1].Addr,
chan->RegTranslation[IDX_IO1].MemIo ? "mem" : "io"));
KdPrint2((PRINT_PREFIX "IDX_IO2 %x->%x(%s)\n",
IDX_IO2,
chan->RegTranslation[IDX_IO2].Addr,
chan->RegTranslation[IDX_IO2].MemIo ? "mem" : "io"));
KdPrint2((PRINT_PREFIX "IDX_BM_IO %x->%x(%s)\n",
IDX_BM_IO,
chan->RegTranslation[IDX_BM_IO].Addr,
chan->RegTranslation[IDX_BM_IO].MemIo ? "mem" : "io"));
KdPrint2((PRINT_PREFIX "IDX_SATA_IO %x->%x(%s)\n",
IDX_SATA_IO,
chan->RegTranslation[IDX_SATA_IO].Addr,
chan->RegTranslation[IDX_SATA_IO].MemIo ? "mem" : "io"));
UniataDumpATARegs(chan);
#ifndef UNIATA_CORE
#ifdef UNIATA_INIT_ON_PROBE
// if(deviceExtension->HwFlags & UNIATA_SATA) {
//#endif //UNIATA_INIT_ON_PROBE
KdPrint2((PRINT_PREFIX "Check drive 0\n"));
// Check master.
SelectDrive(chan, 0);
AtapiStallExecution(10);
GetBaseStatus(chan, statusByte);
skip_find_dev = FALSE;
if(!(deviceExtension->HwFlags & UNIATA_NO_SLAVE)) {
if ((statusByte & 0xf8) == 0xf8 ||
(statusByte == 0xa5)) {
// Check slave.
KdPrint2((PRINT_PREFIX "Check drive 1\n"));
SelectDrive(chan, 1);
AtapiStallExecution(1);
GetBaseStatus(chan, statusByte);
if ((statusByte & 0xf8) == 0xf8 ||
(statusByte == 0xa5)) {
// No controller at this base address.
KdPrint2((PRINT_PREFIX "Empty channel\n"));
skip_find_dev = TRUE;
}
}
}
// Search for devices on this controller.
if (!skip_find_dev &&
FindDevices(HwDeviceExtension,
0,
c)) {
KdPrint2((PRINT_PREFIX "Found some devices\n"));
found = TRUE;
} else {
KdPrint2((PRINT_PREFIX "no devices\n"));
/* KeBugCheckEx(0xc000000e,
ScsiPortConvertPhysicalAddressToUlong(IoBasePort1),
ScsiPortConvertPhysicalAddressToUlong(IoBasePort2),
(ULONG)(deviceExtension->BaseIoAddressBM[c]), skip_find_dev);*/
}
//#ifdef UNIATA_INIT_ON_PROBE
// }
#endif //UNIATA_INIT_ON_PROBE
found = TRUE;
chan->PrimaryAddress = FALSE;
// Claim primary or secondary ATA IO range.
if (MasterDev) {
KdPrint2((PRINT_PREFIX "claim Compatible controller\n"));
if (channel == 0) {
KdPrint2((PRINT_PREFIX "claim Primary\n"));
ConfigInfo->AtdiskPrimaryClaimed = TRUE;
chan->PrimaryAddress = TRUE;
FirstMasterOk = TRUE;
} else
if (channel == 1) {
KdPrint2((PRINT_PREFIX "claim Secondary\n"));
ConfigInfo->AtdiskSecondaryClaimed = TRUE;
FirstMasterOk = TRUE;
}
}
AtapiDmaAlloc(HwDeviceExtension, ConfigInfo, c);
#else //UNIATA_CORE
found = TRUE;
#endif //UNIATA_CORE
} // end for(channel)
exit_findbm:
#ifndef UNIATA_CORE
if(!found) {
KdPrint2((PRINT_PREFIX "exit: !found\n"));
if(BaseIoAddress1[0])
ScsiPortFreeDeviceBase(HwDeviceExtension,
BaseIoAddress1[0]);
if(BaseIoAddress2[0])
ScsiPortFreeDeviceBase(HwDeviceExtension,
BaseIoAddress2[0]);
if(BaseIoAddress1[1])
ScsiPortFreeDeviceBase(HwDeviceExtension,
BaseIoAddress1[1]);
if(BaseIoAddress2[1])
ScsiPortFreeDeviceBase(HwDeviceExtension,
BaseIoAddress2[1]);
if(BaseIoAddressBM_0)
ScsiPortFreeDeviceBase(HwDeviceExtension,
BaseIoAddressBM_0);
KdPrint2((PRINT_PREFIX "return SP_RETURN_NOT_FOUND\n"));
goto exit_notfound;
} else {
KdPrint2((PRINT_PREFIX "exit: init spinlock\n"));
//KeInitializeSpinLock(&(deviceExtension->DpcSpinLock));
deviceExtension->ActiveDpcChan =
deviceExtension->FirstDpcChan = -1;
BMList[i].Isr2Enable = FALSE;
KdPrint2((PRINT_PREFIX "MasterDev=%#x, NumberChannels=%#x, Isr2DevObj=%#x\n",
MasterDev, deviceExtension->NumberChannels, BMList[i].Isr2DevObj));
// ConnectIntr2 should be moved to HwInitialize
status = UniataConnectIntr2(HwDeviceExtension);
KdPrint2((PRINT_PREFIX "MasterDev=%#x, NumberChannels=%#x, Isr2DevObj=%#x\n",
MasterDev, deviceExtension->NumberChannels, BMList[i].Isr2DevObj));
if(WinVer_WDM_Model && MasterDev) {
KdPrint2((PRINT_PREFIX "do not tell system, that we know about this:\n"));
if(BaseIoAddressBM_0) {
ScsiPortFreeDeviceBase(HwDeviceExtension,
BaseIoAddressBM_0);
}
(*ConfigInfo->AccessRanges)[4].RangeStart = ScsiPortConvertUlongToPhysicalAddress(0);
(*ConfigInfo->AccessRanges)[4].RangeLength = 0;
(*ConfigInfo->AccessRanges)[5].RangeStart = ScsiPortConvertUlongToPhysicalAddress(0);
(*ConfigInfo->AccessRanges)[5].RangeLength = 0;
}
if(!NT_SUCCESS(status)) {
KdPrint2((PRINT_PREFIX "failed\n"));
found = FALSE;
goto exit_findbm;
}
}
#endif //UNIATA_CORE
KdPrint2((PRINT_PREFIX "return SP_RETURN_FOUND\n"));
//PrintNtConsole("return SP_RETURN_FOUND, de %#x, c0.lun0 %#x\n", deviceExtension, deviceExtension->chan[0].lun[0]);
if(MasterDev) {
KdPrint2((PRINT_PREFIX "Attempt %d of MasterDev ok\n", AltInit));
FirstMasterOk = TRUE;
}
ConfigInfo->NumberOfBuses++; // add virtual channel for communication port
return SP_RETURN_FOUND;
exit_error:
if (deviceExtension->lun) ExFreePool(deviceExtension->lun);
if (deviceExtension->chan) ExFreePool(deviceExtension->chan);
return SP_RETURN_ERROR;
exit_notfound:
ExFreePool(deviceExtension->lun);
ExFreePool(deviceExtension->chan);
return SP_RETURN_NOT_FOUND;
} // end UniataFindBusMasterController()
#ifndef UNIATA_CORE
/*
This is for claiming PCI Busmaster in compatible mode under WDM OSes
*/
ULONG
NTAPI
UniataFindFakeBusMasterController(
IN PVOID HwDeviceExtension,
IN PVOID Context,
IN PVOID BusInformation,
IN PCHAR ArgumentString,
IN OUT PPORT_CONFIGURATION_INFORMATION ConfigInfo,
OUT PBOOLEAN Again
)
{
PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
//PHW_CHANNEL chan = NULL;
// this buffer must be global for UNIATA_CORE build
PCI_COMMON_CONFIG pciData;
ULONG slotNumber;
ULONG busDataRead;
ULONG SystemIoBusNumber;
UCHAR vendorString[5];
UCHAR deviceString[5];
PUCHAR vendorStrPtr;
PUCHAR deviceStrPtr;
UCHAR BaseClass;
UCHAR SubClass;
ULONG VendorID;
ULONG DeviceID;
ULONG RevID;
ULONG dev_id;
PCI_SLOT_NUMBER slotData;
ULONG_PTR i;
// PUCHAR ioSpace;
// UCHAR statusByte;
// UCHAR tmp8;
// ULONG irq;
BOOLEAN found = FALSE;
BOOLEAN MasterDev;
BOOLEAN simplexOnly = FALSE;
//BOOLEAN skip_find_dev = FALSE;
//BOOLEAN AltInit = FALSE;
PIDE_BUSMASTER_REGISTERS BaseIoAddressBM_0 = NULL;
NTSTATUS status;
PPORT_CONFIGURATION_INFORMATION_COMMON _ConfigInfo =
(PPORT_CONFIGURATION_INFORMATION_COMMON)ConfigInfo;
*Again = FALSE;
if(InDriverEntry) {
i = (ULONG_PTR)Context;
} else {
for(i=0; i<BMListLen; i++) {
if(BMList[i].slotNumber == ConfigInfo->SlotNumber &&
BMList[i].busNumber == ConfigInfo->SystemIoBusNumber) {
break;
}
}
if(i >= BMListLen) {
KdPrint2((PRINT_PREFIX "unexpected device arrival => SP_RETURN_NOT_FOUND\n"));
goto exit_notfound;
}
}
KdPrint2((PRINT_PREFIX "UniataFindFakeBusMasterController (WDM)\n"));
if (!deviceExtension) {
KdPrint2((PRINT_PREFIX "!deviceExtension => SP_RETURN_ERROR\n"));
return SP_RETURN_ERROR;
}
RtlZeroMemory(deviceExtension, sizeof(HW_DEVICE_EXTENSION));
vendorStrPtr = vendorString;
deviceStrPtr = deviceString;
slotNumber = BMList[i].slotNumber;
SystemIoBusNumber = BMList[i].busNumber;
KdPrint2((PRINT_PREFIX "AdapterInterfaceType=%#x\n",ConfigInfo->AdapterInterfaceType));
KdPrint2((PRINT_PREFIX "IoBusNumber=%#x\n",ConfigInfo->SystemIoBusNumber));
KdPrint2((PRINT_PREFIX "slotNumber=%#x\n",slotNumber));
// this buffer must be global and already filled for UNIATA_CORE build
busDataRead = HalGetBusData(
//busDataRead = ScsiPortGetBusData(HwDeviceExtension,
PCIConfiguration,
SystemIoBusNumber,
slotNumber,
&pciData,
PCI_COMMON_HDR_LENGTH);
if (busDataRead < PCI_COMMON_HDR_LENGTH) {
KdPrint2((PRINT_PREFIX "busDataRead < PCI_COMMON_HDR_LENGTH => SP_RETURN_ERROR\n"));
goto exit_error;
}
KdPrint2((PRINT_PREFIX "busDataRead\n"));
if (pciData.VendorID == PCI_INVALID_VENDORID) {
KdPrint2((PRINT_PREFIX "PCI_INVALID_VENDORID\n"));
goto exit_error;
}
VendorID = pciData.VendorID;
DeviceID = pciData.DeviceID;
BaseClass = pciData.BaseClass;
SubClass = pciData.SubClass;
RevID = pciData.RevisionID;
dev_id = VendorID | (DeviceID << 16);
slotData.u.AsULONG = slotNumber;
KdPrint2((PRINT_PREFIX "DevId = %8.8X Class = %4.4X/%4.4X\n", dev_id, BaseClass, SubClass ));
deviceExtension->slotNumber = slotNumber;
deviceExtension->SystemIoBusNumber = SystemIoBusNumber;
deviceExtension->DevID = dev_id;
deviceExtension->RevID = RevID;
deviceExtension->NumberChannels = 2; // default
deviceExtension->DevIndex = i;
_snprintf(deviceExtension->Signature, sizeof(deviceExtension->Signature),
"UATA%8.8x/%1.1x@%8.8x", dev_id, 0xff, slotNumber);
if(BaseClass != PCI_DEV_CLASS_STORAGE) {
KdPrint2((PRINT_PREFIX "BaseClass != PCI_DEV_CLASS_STORAGE => SP_RETURN_NOT_FOUND\n"));
goto exit_notfound;
}
KdPrint2((PRINT_PREFIX "Storage Class\n"));
// look for known chipsets
if(VendorID != BMList[i].nVendorId ||
DeviceID != BMList[i].nDeviceId) {
KdPrint2((PRINT_PREFIX "device not suitable\n"));
goto exit_notfound;
}
if((BMList[i].RaidFlags & UNIATA_RAID_CONTROLLER) &&
SkipRaids) {
KdPrint2((PRINT_PREFIX "RAID support disabled\n"));
goto exit_notfound;
}
switch(SubClass) {
case PCI_DEV_SUBCLASS_IDE:
case PCI_DEV_SUBCLASS_RAID:
case PCI_DEV_SUBCLASS_ATA:
case PCI_DEV_SUBCLASS_SATA:
// ok
break;
default:
KdPrint2((PRINT_PREFIX "Subclass not supported\n"));
goto exit_notfound;
}
ConfigInfo->AlignmentMask = 0x00000003;
status = UniataChipDetect(HwDeviceExtension, &pciData, i, ConfigInfo, &simplexOnly);
switch(status) {
case STATUS_SUCCESS:
found = TRUE;
break;
case STATUS_NOT_FOUND:
found = FALSE;
break;
default:
KdPrint2((PRINT_PREFIX "FAILED => SP_RETURN_ERROR\n"));
goto exit_error;
}
KdPrint2((PRINT_PREFIX "ForceSimplex = %d\n", simplexOnly));
KdPrint2((PRINT_PREFIX "HwFlags = %x\n (0)", deviceExtension->HwFlags));
switch(dev_id) {
/* additional checks for some supported chipsets */
case 0xc6931080:
if (SubClass != PCI_DEV_SUBCLASS_IDE) {
KdPrint2((PRINT_PREFIX "0xc6931080, SubClass != PCI_DEV_SUBCLASS_IDE => found = FALSE\n"));
found = FALSE;
} else {
found = FALSE;
}
break;
/* unknown chipsets, try generic DMA if it seems possible */
default:
if (found)
break;
KdPrint2((PRINT_PREFIX "Default device\n"));
if(!Ata_is_supported_dev(&pciData)) {
KdPrint2((PRINT_PREFIX "!Ata_is_supported_dev => found = FALSE\n"));
found = FALSE;
} else {
KdPrint2((PRINT_PREFIX "Ata_is_supported_dev\n"));
found = TRUE;
}
deviceExtension->UnknownDev = TRUE;
break;
}
KdPrint2((PRINT_PREFIX "HwFlags = %x\n (1)", deviceExtension->HwFlags));
if(!found) {
KdPrint2((PRINT_PREFIX "!found => SP_RETURN_NOT_FOUND\n"));
goto exit_notfound;
}
KdPrint2((PRINT_PREFIX "HwFlags = %x\n (2)", deviceExtension->HwFlags));
KdPrint2((PRINT_PREFIX "found suitable device\n"));
/***********************************************************/
/***********************************************************/
/***********************************************************/
deviceExtension->UseDpc = TRUE;
KdPrint2((PRINT_PREFIX "HwFlags = %x\n (3)", deviceExtension->HwFlags));
if(deviceExtension->HwFlags & UNIATA_NO_DPC) {
/* CMD 649, ROSB SWK33, ICH4 */
KdPrint2((PRINT_PREFIX "UniataFindBusMasterController: UNIATA_NO_DPC (0)\n"));
deviceExtension->UseDpc = FALSE;
}
MasterDev = IsMasterDev(&pciData);
if(MasterDev) {
KdPrint2((PRINT_PREFIX "MasterDev\n"));
deviceExtension->MasterDev = TRUE;
deviceExtension->NumberChannels = 1;
} else {
KdPrint2((PRINT_PREFIX "!MasterDev => SP_RETURN_NOT_FOUND\n"));
goto exit_notfound;
}
if(deviceExtension->AltRegMap) {
KdPrint2((PRINT_PREFIX " Non-standard registers layout => SP_RETURN_NOT_FOUND\n"));
goto exit_notfound;
}
if(IsBusMaster(&pciData)) {
KdPrint2((PRINT_PREFIX " !BusMaster => SP_RETURN_NOT_FOUND\n"));
goto exit_notfound;
}
KdPrint2((PRINT_PREFIX "IsBusMaster == TRUE\n"));
BaseIoAddressBM_0 = (PIDE_BUSMASTER_REGISTERS)
(AtapiGetIoRange(HwDeviceExtension, ConfigInfo, &pciData, SystemIoBusNumber,
4, 0, 0x10/*ATA_BMIOSIZE*/)/* - bm_offset*/); //range id
if(BaseIoAddressBM_0) {
UniataInitMapBM(deviceExtension,
BaseIoAddressBM_0,
(*ConfigInfo->AccessRanges)[4].RangeInMemory ? TRUE : FALSE);
deviceExtension->BusMaster = TRUE;
deviceExtension->BaseIoAddressBM_0.Addr = (ULONG_PTR)BaseIoAddressBM_0;
if((*ConfigInfo->AccessRanges)[4].RangeInMemory) {
deviceExtension->BaseIoAddressBM_0.MemIo = TRUE;
}
}
KdPrint2((PRINT_PREFIX " BusMasterAddress (base): %#x\n", BaseIoAddressBM_0));
/*
* the Cypress chip is a mess, it contains two ATA functions, but
* both channels are visible on the first one.
* simply ignore the second function for now, as the right
* solution (ignoring the second channel on the first function)
* doesn't work with the crappy ATA interrupt setup on the alpha.
*/
if (dev_id == 0xc6931080 && slotData.u.bits.FunctionNumber > 1) {
KdPrint2((PRINT_PREFIX "dev_id == 0xc6931080 && FunctionNumber > 1 => exit_findbm\n"));
goto exit_findbm;
}
// Indicate number of buses.
ConfigInfo->NumberOfBuses = 0;
if(!ConfigInfo->InitiatorBusId[0]) {
ConfigInfo->InitiatorBusId[0] = (CHAR)(IoGetConfigurationInformation()->ScsiPortCount);
KdPrint2((PRINT_PREFIX "set ConfigInfo->InitiatorBusId[0] = %#x\n", ConfigInfo->InitiatorBusId[0]));
}
// Indicate four devices can be attached to the adapter
ConfigInfo->MaximumNumberOfTargets = 0;
ConfigInfo->MultipleRequestPerLu = FALSE;
ConfigInfo->AutoRequestSense = FALSE;
ConfigInfo->TaggedQueuing = FALSE;
if((WinVer_Id() >= WinVer_NT) ||
(ConfigInfo->Length >= sizeof(_ConfigInfo->comm) + sizeof(_ConfigInfo->nt4))) {
_ConfigInfo->nt4.DeviceExtensionSize = sizeof(HW_DEVICE_EXTENSION);
_ConfigInfo->nt4.SpecificLuExtensionSize = sizeof(HW_LU_EXTENSION);
_ConfigInfo->nt4.SrbExtensionSize = sizeof(ATA_REQ);
}
if((WinVer_Id() > WinVer_2k) ||
(ConfigInfo->Length >= sizeof(_ConfigInfo->comm) + sizeof(_ConfigInfo->nt4) + sizeof(_ConfigInfo->w2k))) {
_ConfigInfo->w2k.Dma64BitAddresses = 0;
_ConfigInfo->w2k.ResetTargetSupported = FALSE;
_ConfigInfo->w2k.MaximumNumberOfLogicalUnits = 0;
}
// Save the Interrupe Mode for later use
deviceExtension->InterruptMode = ConfigInfo->InterruptMode;
deviceExtension->BusInterruptLevel = ConfigInfo->BusInterruptLevel;
deviceExtension->BusInterruptVector = ConfigInfo->BusInterruptVector;
deviceExtension->Channel = 0;
deviceExtension->DevIndex = i;
deviceExtension->OrigAdapterInterfaceType
= ConfigInfo->AdapterInterfaceType;
deviceExtension->AlignmentMask = ConfigInfo->AlignmentMask;
deviceExtension->AdapterInterfaceType = PCIBus;
KdPrint2((PRINT_PREFIX "Reconstruct ConfigInfo\n"));
ConfigInfo->MapBuffers = TRUE;
#ifdef USE_OWN_DMA
ConfigInfo->NeedPhysicalAddresses = FALSE;
#else
ConfigInfo->NeedPhysicalAddresses = TRUE;
#endif //USE_OWN_DMA
exit_findbm:
KdPrint2((PRINT_PREFIX "return SP_RETURN_FOUND\n"));
//PrintNtConsole("return SP_RETURN_FOUND, de %#x, c0.lun0 %#x\n", deviceExtension, deviceExtension->chan[0].lun[0]);
return SP_RETURN_FOUND;
exit_error:
if (deviceExtension->lun) ExFreePool(deviceExtension->lun);
if (deviceExtension->chan) ExFreePool(deviceExtension->chan);
return SP_RETURN_ERROR;
exit_notfound:
ExFreePool(deviceExtension->lun);
ExFreePool(deviceExtension->chan);
return SP_RETURN_NOT_FOUND;
} // end UniataFindFakeBusMasterController()
/*++
Routine Description:
This function is called to initialize 2nd device object for
multichannel controllers.
Arguments:
HwDeviceExtension - HBA miniport driver's adapter data storage
Return Value:
ULONG
--*/
NTSTATUS
NTAPI
UniataConnectIntr2(
IN PVOID HwDeviceExtension
)
{
PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
ULONG i = deviceExtension->DevIndex;
NTSTATUS status;
PISR2_DEVICE_EXTENSION Isr2DevExt;
WCHAR devname_str[32];
UNICODE_STRING devname;
KdPrint2((PRINT_PREFIX "Init ISR:\n"));
if(BMList[i].Isr2DevObj) {
KdPrint2((PRINT_PREFIX "Already initialized %#x\n", BMList[i].Isr2DevObj));
return STATUS_SUCCESS;
}
if(!deviceExtension->MasterDev && (deviceExtension->NumberChannels > 1) && // do not touch MasterDev
!deviceExtension->simplexOnly && /* // this is unnecessary on simplex controllers
!BMList[i].Isr2DevObj*/ // handle re-init under w2k+
/*!ForceSimplex*/
TRUE) {
// Ok, continue...
KdPrint2((PRINT_PREFIX "Multichannel native mode, go...\n"));
} else {
KdPrint2((PRINT_PREFIX "Unnecessary\n"));
return STATUS_SUCCESS;
}
KdPrint2((PRINT_PREFIX "Create DO\n"));
devname.Length =
_snwprintf(devname_str, sizeof(devname_str)/sizeof(WCHAR),
L"\\Device\\uniata%d_2ch", i);
devname.Length *= sizeof(WCHAR);
devname.MaximumLength = devname.Length;
devname.Buffer = devname_str;
KdPrint2((PRINT_PREFIX "DO name: len(%d, %d), %S\n", devname.Length, devname.MaximumLength, devname.Buffer));
status = IoCreateDevice(SavedDriverObject, sizeof(ISR2_DEVICE_EXTENSION),
/*NULL*/ &devname, FILE_DEVICE_UNKNOWN,
0, FALSE, &(BMList[i].Isr2DevObj));
if(!NT_SUCCESS(status)) {
KdPrint2((PRINT_PREFIX "IoCreateDevice failed %#x\n"));
return status;
}
KdPrint2((PRINT_PREFIX "HalGetInterruptVector\n"));
KdPrint2((PRINT_PREFIX " OrigAdapterInterfaceType=%d\n", deviceExtension->OrigAdapterInterfaceType));
KdPrint2((PRINT_PREFIX " SystemIoBusNumber=%d\n", deviceExtension->SystemIoBusNumber));
KdPrint2((PRINT_PREFIX " BusInterruptLevel=%d\n", deviceExtension->BusInterruptLevel));
KdPrint2((PRINT_PREFIX " BusInterruptVector=%d\n", deviceExtension->BusInterruptVector));
BMList[i].Isr2Vector = HalGetInterruptVector(
deviceExtension->OrigAdapterInterfaceType,
deviceExtension->SystemIoBusNumber,
deviceExtension->BusInterruptLevel,
deviceExtension->BusInterruptVector,
&(BMList[i].Isr2Irql),
&(BMList[i].Isr2Affinity));
Isr2DevExt = (PISR2_DEVICE_EXTENSION)(BMList[i].Isr2DevObj->DeviceExtension);
Isr2DevExt->HwDeviceExtension = deviceExtension;
Isr2DevExt->DevIndex = i;
KdPrint2((PRINT_PREFIX "isr2_de %#x\n", Isr2DevExt));
KdPrint2((PRINT_PREFIX "isr2_vector %#x\n", BMList[i].Isr2Vector));
KdPrint2((PRINT_PREFIX "isr2_irql %#x\n", BMList[i].Isr2Irql));
KdPrint2((PRINT_PREFIX "isr2_affinity %#x\n", BMList[i].Isr2Affinity));
// deviceExtension->QueueNewIrql = BMList[i].Isr2Irql;
KdPrint2((PRINT_PREFIX "IoConnectInterrupt\n"));
status = IoConnectInterrupt(
&(BMList[i].Isr2InterruptObject),
AtapiInterrupt2,
Isr2DevExt,
NULL,
BMList[i].Isr2Vector,
BMList[i].Isr2Irql,
BMList[i].Isr2Irql,
(KINTERRUPT_MODE)(deviceExtension->InterruptMode),
TRUE,
BMList[i].Isr2Affinity,
FALSE);
if(!NT_SUCCESS(status)) {
KdPrint2((PRINT_PREFIX "IoConnectInterrupt failed\n"));
IoDeleteDevice(BMList[i].Isr2DevObj);
BMList[i].Isr2DevObj = NULL;
BMList[i].Isr2InterruptObject = NULL;
return status;
}
//deviceExtension->Isr2DevObj = BMList[i].Isr2DevObj;
return status;
} // end UniataConnectIntr2()
NTSTATUS
NTAPI
UniataDisconnectIntr2(
IN PVOID HwDeviceExtension
)
{
PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
ULONG i = deviceExtension->DevIndex;
// NTSTATUS status;
KdPrint2((PRINT_PREFIX "Deinit ISR:\n"));
if(!BMList[i].Isr2DevObj) {
KdPrint2((PRINT_PREFIX "Already uninitialized %#x\n"));
return STATUS_SUCCESS;
}
IoDisconnectInterrupt(BMList[i].Isr2InterruptObject);
BMList[i].Isr2InterruptObject = NULL;
IoDeleteDevice(BMList[i].Isr2DevObj);
BMList[i].Isr2DevObj = NULL;
//deviceExtension->Isr2DevObj = NULL;
return STATUS_SUCCESS;
} // end UniataDisconnectIntr2()
#endif //UNIATA_CORE
/*++
Routine Description:
This function is called by the OS-specific port driver after
the necessary storage has been allocated, to gather information
about the adapter's configuration.
Arguments:
HwDeviceExtension - HBA miniport driver's adapter data storage
Context - Address of adapter count
ArgumentString - Used to determine whether driver is client of ntldr or crash dump utility.
ConfigInfo - Configuration information structure describing HBA
Again - Indicates search for adapters to continue
Return Value:
ULONG
--*/
ULONG
NTAPI
AtapiFindController(
IN PVOID HwDeviceExtension,
IN PVOID Context,
IN PVOID BusInformation,
IN PCHAR ArgumentString,
IN OUT PPORT_CONFIGURATION_INFORMATION ConfigInfo,
OUT PBOOLEAN Again
)
{
PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
PHW_CHANNEL chan;
PULONG adapterCount = (PULONG)Context;
PUCHAR ioSpace = NULL;
ULONG i;
ULONG irq=0;
ULONG portBase;
ULONG retryCount;
BOOLEAN atapiOnly;
UCHAR statusByte;
BOOLEAN preConfig = FALSE;
//
PIDE_REGISTERS_1 BaseIoAddress1;
PIDE_REGISTERS_2 BaseIoAddress2 = NULL;
// The following table specifies the ports to be checked when searching for
// an IDE controller. A zero entry terminates the search.
static CONST ULONG AdapterAddresses[5] = {IO_WD1, IO_WD2, IO_WD1-8, IO_WD2-8, 0};
// CONST UCHAR Channels[5] = {0, 1, 0, 1, 0};
// The following table specifies interrupt levels corresponding to the
// port addresses in the previous table.
static CONST ULONG InterruptLevels[5] = {14, 15, 11, 10, 0};
KdPrint2((PRINT_PREFIX "AtapiFindController:\n"));
if (!deviceExtension) {
return SP_RETURN_ERROR;
}
RtlZeroMemory(deviceExtension, sizeof(HW_DEVICE_EXTENSION));
KdPrint2((PRINT_PREFIX " assume max PIO4\n"));
deviceExtension->MaxTransferMode = ATA_PIO4;
deviceExtension->NumberChannels = 1;
if(!UniataAllocateLunExt(deviceExtension, UNIATA_ALLOCATE_NEW_LUNS)) {
goto exit_error;
}
chan = &(deviceExtension->chan[0]);
deviceExtension->AdapterInterfaceType =
deviceExtension->OrigAdapterInterfaceType
= ConfigInfo->AdapterInterfaceType;
#ifndef UNIATA_CORE
/* do extra chipset specific setups */
AtapiReadChipConfig(HwDeviceExtension, DEVNUM_NOT_SPECIFIED, CHAN_NOT_SPECIFIED);
AtapiChipInit(HwDeviceExtension, DEVNUM_NOT_SPECIFIED, CHAN_NOT_SPECIFIED);
// Check to see if this is a special configuration environment.
portBase = irq = 0;
if (ArgumentString) {
irq = AtapiParseArgumentString(ArgumentString, "Interrupt");
if (irq ) {
// Both parameters must be present to proceed
portBase = AtapiParseArgumentString(ArgumentString, "BaseAddress");
if (!portBase) {
// Try a default search for the part.
irq = 0;
}
}
}
#endif //UNIATA_CORE
// Scan though the adapter address looking for adapters.
if (ScsiPortConvertPhysicalAddressToUlong((*ConfigInfo->AccessRanges)[0].RangeStart) != 0) {
ioSpace = (PUCHAR)ScsiPortGetDeviceBase(HwDeviceExtension,
ConfigInfo->AdapterInterfaceType,
ConfigInfo->SystemIoBusNumber,
(*ConfigInfo->AccessRanges)[0].RangeStart,
(*ConfigInfo->AccessRanges)[0].RangeLength,
(BOOLEAN) !((*ConfigInfo->AccessRanges)[0].RangeInMemory));
*Again = FALSE;
// Since we have pre-configured information we only need to go through this loop once
preConfig = TRUE;
portBase = ScsiPortConvertPhysicalAddressToUlong((*ConfigInfo->AccessRanges)[0].RangeStart);
KdPrint2((PRINT_PREFIX " preconfig, portBase=%x\n", portBase));
}
#ifndef UNIATA_CORE
while (AdapterAddresses[*adapterCount] != 0) {
#else
do {
#endif //UNIATA_CORE
retryCount = 4;
deviceExtension->DevIndex = (*adapterCount);
portBase = AtapiRegCheckDevValue(deviceExtension, CHAN_NOT_SPECIFIED, DEVNUM_NOT_SPECIFIED, L"PortBase", portBase);
irq = AtapiRegCheckDevValue(deviceExtension, CHAN_NOT_SPECIFIED, DEVNUM_NOT_SPECIFIED, L"Irq", irq);
for (i = 0; i < 4; i++) {
// Zero device fields to ensure that if earlier devices were found,
// but not claimed, the fields are cleared.
deviceExtension->lun[i].DeviceFlags &= ~(DFLAGS_ATAPI_DEVICE | DFLAGS_DEVICE_PRESENT | DFLAGS_TAPE_DEVICE);
}
// Get the system physical address for this IO range.
// Check if configInfo has the default information
// if not, we go and find ourselves
if (preConfig == FALSE) {
if (portBase) {
ioSpace = (PUCHAR)ScsiPortGetDeviceBase(HwDeviceExtension,
ConfigInfo->AdapterInterfaceType,
ConfigInfo->SystemIoBusNumber,
ScsiPortConvertUlongToPhysicalAddress(portBase),
8,
TRUE);
} else {
ioSpace = (PUCHAR)ScsiPortGetDeviceBase(HwDeviceExtension,
ConfigInfo->AdapterInterfaceType,
ConfigInfo->SystemIoBusNumber,
ScsiPortConvertUlongToPhysicalAddress(AdapterAddresses[*adapterCount]),
8,
TRUE);
}
}
BaseIoAddress1 = (PIDE_REGISTERS_1)ioSpace;
// Update the adapter count.
(*adapterCount)++;
// Check if ioSpace accessible.
if (!ioSpace) {
KdPrint2((PRINT_PREFIX "AtapiFindController: !ioSpace\n"));
continue;
}
// check if Primary/Secondary Master IDE claimed
if((ioSpace == (PUCHAR)IO_WD1) &&
(ConfigInfo->AtdiskPrimaryClaimed)) {
KdPrint2((PRINT_PREFIX "AtapiFindController: AtdiskPrimaryClaimed\n"));
goto not_found;
} else
if((ioSpace == (PUCHAR)IO_WD2) &&
(ConfigInfo->AtdiskSecondaryClaimed)) {
KdPrint2((PRINT_PREFIX "AtapiFindController: AtdiskSecondaryClaimed\n"));
goto not_found;
}
// Get the system physical address for the second IO range.
if (BaseIoAddress1) {
if(preConfig &&
!ScsiPortConvertPhysicalAddressToUlong((*ConfigInfo->AccessRanges)[1].RangeStart)) {
KdPrint2((PRINT_PREFIX "AtapiFindController: PCMCIA ?\n"));
ioSpace = (PUCHAR)ScsiPortGetDeviceBase(HwDeviceExtension,
ConfigInfo->AdapterInterfaceType,
ConfigInfo->SystemIoBusNumber,
ScsiPortConvertUlongToPhysicalAddress((ULONG_PTR)BaseIoAddress1 + 0x0E),
ATA_ALTIOSIZE,
TRUE);
} else {
ioSpace = (PUCHAR)ScsiPortGetDeviceBase(HwDeviceExtension,
ConfigInfo->AdapterInterfaceType,
ConfigInfo->SystemIoBusNumber,
ScsiPortConvertUlongToPhysicalAddress((ULONG_PTR)BaseIoAddress1 + ATA_ALTOFFSET),
ATA_ALTIOSIZE,
TRUE);
}
}
BaseIoAddress2 = (PIDE_REGISTERS_2)ioSpace;
KdPrint2((PRINT_PREFIX " BaseIoAddress1=%x\n", BaseIoAddress1));
KdPrint2((PRINT_PREFIX " BaseIoAddress2=%x\n", BaseIoAddress2));
UniataInitMapBase(chan, BaseIoAddress1, BaseIoAddress2);
UniataInitMapBM(deviceExtension, 0, FALSE);
retryIdentifier:
// Select master.
SelectDrive(chan, 0);
// Check if card at this address.
AtapiWritePort1(chan, IDX_IO1_o_CylinderLow, 0xAA);
// Check if indentifier can be read back.
if ((statusByte = AtapiReadPort1(chan, IDX_IO1_i_CylinderLow)) != 0xAA) {
KdPrint2((PRINT_PREFIX "AtapiFindController: Identifier read back from Master (%#x)\n",
statusByte));
statusByte = AtapiReadPort1(chan, IDX_IO2_AltStatus);
if (statusByte & IDE_STATUS_BUSY) {
i = 0;
// Could be the TEAC in a thinkpad. Their dos driver puts it in a sleep-mode that
// warm boots don't clear.
do {
AtapiStallExecution(1000);
statusByte = AtapiReadPort1(chan, IDX_ATAPI_IO1_i_Status);
KdPrint2((PRINT_PREFIX
"AtapiFindController: First access to status %#x\n",
statusByte));
} while ((statusByte & IDE_STATUS_BUSY) && ++i < 10);
if (retryCount-- && (!(statusByte & IDE_STATUS_BUSY))) {
goto retryIdentifier;
}
}
// Select slave.
SelectDrive(chan, 1);
// See if slave is present.
AtapiWritePort1(chan, IDX_IO1_o_CylinderLow, 0xAA);
if ((statusByte = AtapiReadPort1(chan, IDX_IO1_i_CylinderLow)) != 0xAA) {
KdPrint2((PRINT_PREFIX
"AtapiFindController: Identifier read back from Slave (%#x)\n",
statusByte));
not_found:
// No controller at this base address.
if(BaseIoAddress1) {
ScsiPortFreeDeviceBase(HwDeviceExtension,
(PCHAR)BaseIoAddress1);
BaseIoAddress1 = NULL;
}
if(BaseIoAddress2) {
ScsiPortFreeDeviceBase(HwDeviceExtension,
(PCHAR)BaseIoAddress2);
BaseIoAddress2 = NULL;
}
continue;
}
}
// Fill in the access array information only if default params are not in there.
if (preConfig == FALSE) {
// An adapter has been found request another call, only if we didn't get preconfigured info.
*Again = TRUE;
if (portBase) {
(*ConfigInfo->AccessRanges)[0].RangeStart = ScsiPortConvertUlongToPhysicalAddress(portBase);
} else {
(*ConfigInfo->AccessRanges)[0].RangeStart =
ScsiPortConvertUlongToPhysicalAddress(AdapterAddresses[*adapterCount - 1]);
}
(*ConfigInfo->AccessRanges)[0].RangeLength = 8;
(*ConfigInfo->AccessRanges)[0].RangeInMemory = FALSE;
// Indicate the interrupt level corresponding to this IO range.
if (irq) {
ConfigInfo->BusInterruptLevel = irq;
} else {
ConfigInfo->BusInterruptLevel = InterruptLevels[*adapterCount - 1];
}
if (ConfigInfo->AdapterInterfaceType == MicroChannel) {
ConfigInfo->InterruptMode = LevelSensitive;
} else {
ConfigInfo->InterruptMode = Latched;
}
}
ConfigInfo->NumberOfBuses = 1;
ConfigInfo->MaximumNumberOfTargets = 2;
// Indicate maximum transfer length is 64k.
ConfigInfo->MaximumTransferLength = 0x10000;
deviceExtension->MaximumDmaTransferLength = ConfigInfo->MaximumTransferLength;
KdPrint2((PRINT_PREFIX "de %#x, Channel ???\n", deviceExtension));
//PrintNtConsole("de %#x, Channel %#x, nchan %#x\n",deviceExtension, channel, deviceExtension->NumberChannels);
KdPrint2((PRINT_PREFIX "chan = %#x\n", chan));
//PrintNtConsole("chan = %#x, c=%#x\n", chan, c);
chan->DeviceExtension = deviceExtension;
chan->lChannel = 0;
chan->lun[0] = &(deviceExtension->lun[0]);
chan->lun[1] = &(deviceExtension->lun[1]);
/* do extra channel-specific setups */
AtapiReadChipConfig(HwDeviceExtension, DEVNUM_NOT_SPECIFIED, 0);
AtapiChipInit(HwDeviceExtension, DEVNUM_NOT_SPECIFIED, 0);
KdPrint2((PRINT_PREFIX
"AtapiFindController: Found IDE at %#x\n",
BaseIoAddress1));
// For Daytona, the atdisk driver gets the first shot at the
// primary and secondary controllers.
if (preConfig == FALSE) {
if (*adapterCount - 1 < 2) {
// Determine whether this driver is being initialized by the
// system or as a crash dump driver.
if (ArgumentString) {
#ifndef UNIATA_CORE
if (AtapiParseArgumentString(ArgumentString, "dump") == 1) {
KdPrint2((PRINT_PREFIX
"AtapiFindController: Crash dump\n"));
atapiOnly = FALSE;
deviceExtension->DriverMustPoll = TRUE;
} else {
KdPrint2((PRINT_PREFIX
"AtapiFindController: Atapi Only\n"));
atapiOnly = TRUE;
deviceExtension->DriverMustPoll = FALSE;
}
#endif //UNIATA_CORE
} else {
KdPrint2((PRINT_PREFIX
"AtapiFindController: Atapi Only (2)\n"));
atapiOnly = TRUE;
deviceExtension->DriverMustPoll = FALSE;
}
} else {
atapiOnly = FALSE;
}
} else {
atapiOnly = FALSE;
deviceExtension->DriverMustPoll = FALSE;
}// preConfig check
// Save the Interrupe Mode for later use
deviceExtension->InterruptMode = ConfigInfo->InterruptMode;
KdPrint2((PRINT_PREFIX
"AtapiFindController: look for devices\n"));
// Search for devices on this controller.
if (FindDevices(HwDeviceExtension,
0,
0 /* Channel */)) {
KdPrint2((PRINT_PREFIX
"AtapiFindController: detected\n"));
// Claim primary or secondary ATA IO range.
if (portBase) {
switch (portBase) {
case IO_WD2:
ConfigInfo->AtdiskSecondaryClaimed = TRUE;
chan->PrimaryAddress = FALSE;
break;
case IO_WD1:
ConfigInfo->AtdiskPrimaryClaimed = TRUE;
chan->PrimaryAddress = TRUE;
break;
default:
break;
}
} else {
if (*adapterCount == 1) {
ConfigInfo->AtdiskPrimaryClaimed = TRUE;
chan->PrimaryAddress = TRUE;
} else if (*adapterCount == 2) {
ConfigInfo->AtdiskSecondaryClaimed = TRUE;
chan->PrimaryAddress = FALSE;
}
}
if(deviceExtension->AdapterInterfaceType == Isa) {
IsaCount++;
} else
if(deviceExtension->AdapterInterfaceType == MicroChannel) {
MCACount++;
}
KdPrint2((PRINT_PREFIX
"AtapiFindController: return SP_RETURN_FOUND\n"));
return(SP_RETURN_FOUND);
}
#ifndef UNIATA_CORE
}
#else
} while(FALSE);
#endif //UNIATA_CORE
// The entire table has been searched and no adapters have been found.
// There is no need to call again and the device base can now be freed.
// Clear the adapter count for the next bus.
*Again = FALSE;
*(adapterCount) = 0;
KdPrint2((PRINT_PREFIX
"AtapiFindController: return SP_RETURN_NOT_FOUND\n"));
ExFreePool(deviceExtension->lun);
ExFreePool(deviceExtension->chan);
return(SP_RETURN_NOT_FOUND);
exit_error:
if (deviceExtension->lun) ExFreePool(deviceExtension->lun);
if (deviceExtension->chan) ExFreePool(deviceExtension->chan);
return SP_RETURN_ERROR;
} // end AtapiFindController()
BOOLEAN
NTAPI
UniataAnybodyHome(
IN PVOID HwDeviceExtension,
IN ULONG lChannel,
IN ULONG deviceNumber
)
{
PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
PHW_CHANNEL chan = &(deviceExtension->chan[lChannel]);
ULONG ldev = GET_LDEV2(lChannel, deviceNumber, 0);
PHW_LU_EXTENSION LunExt = &(deviceExtension->lun[ldev]);
SATA_SSTATUS_REG SStatus;
UCHAR signatureLow;
UCHAR signatureHigh;
if(LunExt->DeviceFlags & DFLAGS_HIDDEN) {
KdPrint2((PRINT_PREFIX " hidden\n"));
UniataForgetDevice(LunExt);
return FALSE;
}
// Select the device.
SelectDrive(chan, deviceNumber);
signatureLow = AtapiReadPort1(chan, IDX_IO1_i_CylinderLow);
signatureHigh = AtapiReadPort1(chan, IDX_IO1_i_CylinderHigh);
if (signatureLow == ATAPI_MAGIC_LSB && signatureHigh == ATAPI_MAGIC_MSB) {
KdPrint2((PRINT_PREFIX " ATAPI at home\n", signatureLow));
return TRUE;
}
if(!UniataIsSATARangeAvailable(deviceExtension, lChannel)) {
AtapiStallExecution(10);
AtapiWritePort1(chan, IDX_IO1_o_BlockNumber, 0x55);
AtapiWritePort1(chan, IDX_IO1_o_BlockNumber, 0x55);
AtapiStallExecution(5);
signatureLow = AtapiReadPort1(chan, IDX_IO1_i_BlockNumber);
if(signatureLow != 0x55) {
KdPrint2((PRINT_PREFIX " nobody home! %#x != 0x55\n", signatureLow));
UniataForgetDevice(LunExt);
return FALSE;
}
AtapiWritePort1(chan, IDX_IO1_o_BlockNumber, 0xAA);
AtapiWritePort1(chan, IDX_IO1_o_BlockNumber, 0xAA);
AtapiStallExecution(5);
signatureLow = AtapiReadPort1(chan, IDX_IO1_i_BlockNumber);
if(signatureLow != 0xAA) {
KdPrint2((PRINT_PREFIX " nobody home! %#x != 0xAA\n", signatureLow));
UniataForgetDevice(LunExt);
return FALSE;
}
} else {
SStatus.Reg = UniataSataReadPort4(chan, IDX_SATA_SStatus, deviceNumber);
KdPrint2((PRINT_PREFIX "SStatus %x\n", SStatus.Reg));
if(SStatus.DET <= SStatus_DET_Dev_NoPhy) {
KdPrint2((PRINT_PREFIX " SATA DET <= SStatus_DET_Dev_NoPhy\n"));
return FALSE;
}
if(SStatus.SPD < SStatus_SPD_Gen1) {
KdPrint2((PRINT_PREFIX " SATA SPD < SStatus_SPD_Gen1\n"));
return FALSE;
}
if(SStatus.IPM == SStatus_IPM_NoDev) {
KdPrint2((PRINT_PREFIX " SATA IPN == SStatus_IPM_NoDev\n"));
return FALSE;
}
}
return TRUE;
} // end UniataAnybodyHome()
ULONG
NTAPI
CheckDevice(
IN PVOID HwDeviceExtension,
IN ULONG lChannel,
IN ULONG deviceNumber,
IN BOOLEAN ResetDev
)
{
PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
PHW_CHANNEL chan = &(deviceExtension->chan[lChannel]);
ULONG ldev = GET_LDEV2(lChannel, deviceNumber, 0);
PHW_LU_EXTENSION LunExt = &(deviceExtension->lun[ldev]);
UCHAR signatureLow,
signatureHigh;
UCHAR statusByte;
ULONG RetVal=0;
ULONG waitCount = 10000;
KdPrint2((PRINT_PREFIX "CheckDevice: Device %#x\n",
deviceNumber));
if(ResetDev) {
KdPrint2((PRINT_PREFIX "CheckDevice: reset dev\n"));
// Reset device
AtapiSoftReset(chan, deviceNumber);
if(!UniataAnybodyHome(HwDeviceExtension, lChannel, deviceNumber)) {
return 0;
}
statusByte = WaitOnBusy(chan);
if((statusByte | IDE_STATUS_BUSY) == 0xff) {
KdPrint2((PRINT_PREFIX
"CheckDevice: bad status %x\n", statusByte));
} else
if(statusByte != 0xff && (statusByte & IDE_STATUS_BUSY)) {
// Perform hard-reset.
KdPrint2((PRINT_PREFIX
"CheckDevice: BUSY\n"));
AtapiWritePort1(chan, IDX_IO2_o_Control, IDE_DC_RESET_CONTROLLER );
AtapiStallExecution(500 * 1000);
AtapiWritePort1(chan, IDX_IO2_o_Control, IDE_DC_REENABLE_CONTROLLER);
SelectDrive(chan, deviceNumber & 0x01);
do {
// Wait for Busy to drop.
AtapiStallExecution(100);
GetStatus(chan, statusByte);
} while ((statusByte & IDE_STATUS_BUSY) && waitCount--);
GetBaseStatus(chan, statusByte);
KdPrint2((PRINT_PREFIX
"CheckDevice: status after hard reset %x\n", statusByte));
}
if((statusByte | IDE_STATUS_BUSY) == 0xff) {
KdPrint2((PRINT_PREFIX
"CheckDevice: no dev ?\n"));
} else
if(UniataIsSATARangeAvailable(deviceExtension, lChannel)) {
//if(deviceExtension->HwFlags & UNIATA_SATA) {
KdPrint2((PRINT_PREFIX
"CheckDevice: try enable SATA Phy\n"));
statusByte = UniataSataPhyEnable(HwDeviceExtension, lChannel, deviceNumber);
if(statusByte == 0xff) {
KdPrint2((PRINT_PREFIX "CheckDevice: status %#x (no dev)\n", statusByte));
UniataForgetDevice(LunExt);
return 0;
}
}
}
// Select the device.
SelectDrive(chan, deviceNumber);
if(!UniataAnybodyHome(HwDeviceExtension, lChannel, deviceNumber)) {
return 0;
}
statusByte = WaitOnBaseBusyLong(chan);
GetBaseStatus(chan, statusByte);
if(deviceExtension->HwFlags & UNIATA_SATA) {
UniataSataClearErr(HwDeviceExtension, lChannel, UNIATA_SATA_IGNORE_CONNECT, deviceNumber);
}
KdPrint2((PRINT_PREFIX "CheckDevice: status %#x\n", statusByte));
if(((statusByte | IDE_STATUS_BUSY) == 0xff) ||
(statusByte & IDE_STATUS_BUSY)) {
KdPrint2((PRINT_PREFIX "CheckDevice: busy => return\n"));
UniataForgetDevice(LunExt);
return 0;
}
// set default costs
LunExt->RwSwitchCost = REORDER_COST_SWITCH_RW_HDD;
LunExt->RwSwitchMCost = REORDER_MCOST_SWITCH_RW_HDD;
LunExt->SeekBackMCost = REORDER_MCOST_SEEK_BACK_HDD;
signatureLow = AtapiReadPort1(chan, IDX_IO1_i_CylinderLow);
signatureHigh = AtapiReadPort1(chan, IDX_IO1_i_CylinderHigh);
if (signatureLow == ATAPI_MAGIC_LSB && signatureHigh == ATAPI_MAGIC_MSB) {
KdPrint2((PRINT_PREFIX "CheckDevice: ATAPI signature found\n"));
// ATAPI signature found.
// Issue the ATAPI identify command if this
// is not for the crash dump utility.
if (!deviceExtension->DriverMustPoll) {
// Issue ATAPI packet identify command.
if (IssueIdentify(HwDeviceExtension,
deviceNumber,
lChannel,
IDE_COMMAND_ATAPI_IDENTIFY, FALSE)) {
// Indicate ATAPI device.
KdPrint2((PRINT_PREFIX "CheckDevice: Device %#x is ATAPI\n",
deviceNumber));
RetVal = DFLAGS_DEVICE_PRESENT | DFLAGS_ATAPI_DEVICE;
LunExt->DeviceFlags |= (DFLAGS_DEVICE_PRESENT | DFLAGS_ATAPI_DEVICE);
// some ATAPI devices doesn't work with DPC on CMD-649
// and probably some other controllers
if(deviceExtension->HwFlags & UNIATA_NO_DPC_ATAPI) {
/* CMD 649, ROSB SWK33, ICH4 */
KdPrint2((PRINT_PREFIX "CheckDevice: UNIATA_NO_DPC_ATAPI\n"));
deviceExtension->UseDpc = FALSE;
}
GetStatus(chan, statusByte);
if (statusByte & IDE_STATUS_ERROR) {
AtapiSoftReset(chan, deviceNumber);
}
} else {
// Indicate no working device.
KdPrint2((PRINT_PREFIX "CheckDevice: Device %#x not responding\n",
deviceNumber));
UniataForgetDevice(LunExt);
RetVal = 0;
}
GetBaseStatus(chan, statusByte);
}
} else {
KdPrint2((PRINT_PREFIX "CheckDevice: IDE device check\n"));
// Issue IDE Identify. If an Atapi device is actually present, the signature
// will be asserted, and the drive will be recognized as such.
if(deviceExtension->DWordIO) {
KdPrint2((PRINT_PREFIX " try 32bit IO\n"));
LunExt->DeviceFlags |= DFLAGS_DWORDIO_ENABLED;
}
if (IssueIdentify(HwDeviceExtension,
deviceNumber,
lChannel,
IDE_COMMAND_IDENTIFY, FALSE)) {
// IDE drive found.
KdPrint2((PRINT_PREFIX "CheckDevice: Device %#x is IDE\n",
deviceNumber));
// Indicate IDE - not ATAPI device.
RetVal = DFLAGS_DEVICE_PRESENT;
LunExt->DeviceFlags |= DFLAGS_DEVICE_PRESENT;
LunExt->DeviceFlags &= ~DFLAGS_ATAPI_DEVICE;
}
GetBaseStatus(chan, statusByte);
}
KdPrint2((PRINT_PREFIX "CheckDevice: check status: %sfound\n", RetVal ? "" : "not "));
return RetVal;
} // end CheckDevice()
/*++
Routine Description:
This routine is called from AtapiFindController to identify
devices attached to an IDE controller.
Arguments:
HwDeviceExtension - HBA miniport driver's adapter data storage
AtapiOnly - Indicates that routine should return TRUE only if
an ATAPI device is attached to the controller.
Return Value:
TRUE - True if devices found.
--*/
BOOLEAN
NTAPI
FindDevices(
IN PVOID HwDeviceExtension,
IN ULONG Flags,
IN ULONG Channel
)
{
PHW_DEVICE_EXTENSION deviceExtension = (PHW_DEVICE_EXTENSION)HwDeviceExtension;
PHW_CHANNEL chan = &(deviceExtension->chan[Channel]);
PHW_LU_EXTENSION LunExt;
BOOLEAN deviceResponded = FALSE,
skipSetParameters = FALSE;
ULONG waitCount = 10000;
//ULONG deviceNumber;
ULONG i;
UCHAR statusByte;
ULONG ldev;
ULONG max_ldev;
BOOLEAN AtapiOnly = FALSE;
KdPrint2((PRINT_PREFIX "FindDevices:\n"));
// Disable interrupts
AtapiDisableInterrupts(deviceExtension, Channel);
// AtapiWritePort1(chan, IDX_IO2_o_Control,IDE_DC_DISABLE_INTERRUPTS | IDE_DC_A_4BIT );
// Clear expecting interrupt flag and current SRB field.
chan->ExpectingInterrupt = FALSE;
// chan->CurrentSrb = NULL;
max_ldev = (chan->ChannelCtrlFlags & CTRFLAGS_NO_SLAVE) ? 1 : 2;
KdPrint2((PRINT_PREFIX " max_ldev %d\n", max_ldev));
// Search for devices.
for (i = 0; i < max_ldev; i++) {
AtapiDisableInterrupts(deviceExtension, Channel);
if(Flags & UNIATA_FIND_DEV_UNHIDE) {
ldev = GET_LDEV2(Channel, i, 0);
deviceExtension->lun[ldev].DeviceFlags &= ~DFLAGS_HIDDEN;
}
deviceResponded |=
(CheckDevice(HwDeviceExtension, Channel, i, TRUE) != 0);
AtapiEnableInterrupts(deviceExtension, Channel);
}
for (i = 0; i < max_ldev; i++) {
ldev = GET_LDEV2(Channel, i, 0);
LunExt = &(deviceExtension->lun[ldev]);
if (( LunExt->DeviceFlags & DFLAGS_DEVICE_PRESENT) &&
!(LunExt->DeviceFlags & DFLAGS_LBA_ENABLED) &&
!(LunExt->DeviceFlags & DFLAGS_ATAPI_DEVICE) && deviceResponded) {
// This hideous hack is to deal with ESDI devices that return
// garbage geometry in the IDENTIFY data.
// This is ONLY for the crashdump environment as
// these are ESDI devices.
if (LunExt->IdentifyData.SectorsPerTrack ==
0x35 &&
LunExt->IdentifyData.NumberOfHeads ==
0x07) {
KdPrint2((PRINT_PREFIX
"FindDevices: Found nasty Compaq ESDI!\n"));
// Change these values to something reasonable.
LunExt->IdentifyData.SectorsPerTrack =
0x34;
LunExt->IdentifyData.NumberOfHeads =
0x0E;
}
if (LunExt->IdentifyData.SectorsPerTrack ==
0x35 &&
LunExt->IdentifyData.NumberOfHeads ==
0x0F) {
KdPrint2((PRINT_PREFIX
"FindDevices: Found nasty Compaq ESDI!\n"));
// Change these values to something reasonable.
LunExt->IdentifyData.SectorsPerTrack =
0x34;
LunExt->IdentifyData.NumberOfHeads =
0x0F;
}
if (LunExt->IdentifyData.SectorsPerTrack ==
0x36 &&
LunExt->IdentifyData.NumberOfHeads ==
0x07) {
KdPrint2((PRINT_PREFIX "FindDevices: Found nasty UltraStor ESDI!\n"));
// Change these values to something reasonable.
LunExt->IdentifyData.SectorsPerTrack =
0x3F;
LunExt->IdentifyData.NumberOfHeads =
0x10;
skipSetParameters = TRUE;
}
if (skipSetParameters)
continue;
statusByte = WaitOnBusy(chan);
// Select the device.
SelectDrive(chan, i & 0x01);
GetStatus(chan, statusByte);
if (statusByte & IDE_STATUS_ERROR) {
// Reset the device.
KdPrint2((PRINT_PREFIX
"FindDevices: Resetting controller before SetDriveParameters.\n"));
AtapiWritePort1(chan, IDX_IO2_o_Control, IDE_DC_RESET_CONTROLLER );
AtapiStallExecution(500 * 1000);
AtapiWritePort1(chan, IDX_IO2_o_Control, IDE_DC_REENABLE_CONTROLLER);
SelectDrive(chan, i & 0x01);
do {
// Wait for Busy to drop.
AtapiStallExecution(100);
GetStatus(chan, statusByte);
} while ((statusByte & IDE_STATUS_BUSY) && waitCount--);
}
statusByte = WaitOnBusy(chan);
KdPrint2((PRINT_PREFIX
"FindDevices: Status before SetDriveParameters: (%#x) (%#x)\n",
statusByte,
AtapiReadPort1(chan, IDX_IO1_i_DriveSelect)));
GetBaseStatus(chan, statusByte);
// Use the IDENTIFY data to set drive parameters.
if (!SetDriveParameters(HwDeviceExtension,i,Channel)) {
KdPrint2((PRINT_PREFIX
"FindDevices: Set drive parameters for device %d failed\n",
i));
// Don't use this device as writes could cause corruption.
LunExt->DeviceFlags &= ~DFLAGS_DEVICE_PRESENT;
UniataForgetDevice(&(deviceExtension->lun[ldev]));
continue;
}
if (LunExt->DeviceFlags & DFLAGS_REMOVABLE_DRIVE) {
// Pick up ALL IDE removable drives that conform to Yosemite V0.2...
AtapiOnly = FALSE;
}
// Indicate that a device was found.
if (!AtapiOnly) {
deviceResponded = TRUE;
}
}
}
/* // Reset the controller. This is a feeble attempt to leave the ESDI
// controllers in a state that ATDISK driver will recognize them.
// The problem in ATDISK has to do with timings as it is not reproducible
// in debug. The reset should restore the controller to its poweron state
// and give the system enough time to settle.
if (!deviceResponded) {
AtapiWritePort1(chan, IDX_IO2_o_Control,IDE_DC_RESET_CONTROLLER );
AtapiStallExecution(50 * 1000);
AtapiWritePort1(chan, IDX_IO2_o_Control,IDE_DC_REENABLE_CONTROLLER);
}
*/
if(deviceResponded) {
for (i = 0; i < max_ldev; i++) {
ldev = GET_LDEV2(Channel, i, 0);
LunExt = &(deviceExtension->lun[ldev]);
KdPrint2((PRINT_PREFIX
"FindDevices: select %d dev to clear INTR\n", i));
SelectDrive(chan, i);
GetBaseStatus(chan, statusByte);
KdPrint2((PRINT_PREFIX
"FindDevices: statusByte=%#x\n", statusByte));
}
for (i = 0; i < max_ldev; i++) {
ldev = GET_LDEV2(Channel, i, 0);
LunExt = &(deviceExtension->lun[ldev]);
if(LunExt->DeviceFlags & DFLAGS_DEVICE_PRESENT) {
// Make sure some device (master is preferred) is selected on exit.
KdPrint2((PRINT_PREFIX
"FindDevices: select %d dev on exit\n", i));
SelectDrive(chan, i);
break;
}
}
}
GetBaseStatus(chan, statusByte);
// Enable interrupts
AtapiEnableInterrupts(deviceExtension, Channel);
// AtapiWritePort1(chan, IDX_IO2_o_Control, IDE_DC_A_4BIT );
GetBaseStatus(chan, statusByte);
KdPrint2((PRINT_PREFIX
"FindDevices: returning %d\n",
deviceResponded));
return deviceResponded;
} // end FindDevices()
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