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Added ISA-Bus initialization by Hartmut Birr.

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svn path=/trunk/; revision=2719
This commit is contained in:
Eric Kohl 2002-03-16 16:13:57 +00:00
parent e451a9e365
commit c35bee1fdd
1 changed files with 84 additions and 17 deletions
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101
reactos/drivers/storage/atapi/atapi.c
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@ -16,7 +16,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: atapi.c,v 1.12 2002/03/15 16:34:52 ekohl Exp $
/* $Id: atapi.c,v 1.13 2002/03/16 16:13:57 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS ATAPI miniport driver
@ -40,6 +40,9 @@
* - handle removable atapi non-cdrom drives
*/
#define ENABLE_PCI
#define ENABLE_ISA
// -------------------------------------------------------------------------
#include <ddk/ntddk.h>
@ -263,6 +266,7 @@ DriverEntry(IN PDRIVER_OBJECT DriverObject,
InitData.MapBuffers = TRUE;
/* Search the PCI bus for compatibility mode ide controllers */
#ifdef ENABLE_PCI
InitData.HwFindAdapter = AtapiFindCompatiblePciController;
InitData.NumberOfAccessRanges = 2;
InitData.AdapterInterfaceType = PCIBus;
@ -278,9 +282,10 @@ DriverEntry(IN PDRIVER_OBJECT DriverObject,
NULL);
// if (newStatus < statusToReturn)
// statusToReturn = newStatus;
#endif
/* Search the ISA bus for ide controllers */
#if 0
#ifdef ENABLE_ISA
InitData.HwFindAdapter = AtapiFindIsaBusController;
InitData.NumberOfAccessRanges = 2;
InitData.AdapterInterfaceType = Isa;
@ -472,26 +477,81 @@ AtapiFindIsaBusController(PVOID DeviceExtension,
PBOOLEAN Again)
{
PATAPI_MINIPORT_EXTENSION DevExt = (PATAPI_MINIPORT_EXTENSION)DeviceExtension;
BOOLEAN ChannelFound = FALSE;
BOOLEAN DeviceFound = FALSE;
DPRINT("AtapiFindIsaBusController() called!\n");
DPRINT1("AtapiFindIsaBusController() called!\n");
*Again = FALSE;
if (ConfigInfo->AtdiskPrimaryClaimed == TRUE)
{
DPRINT("Primary IDE controller already claimed!\n");
ConfigInfo->NumberOfBuses = 1;
ConfigInfo->MaximumNumberOfTargets = 2;
ConfigInfo->MaximumTransferLength = 0x10000; /* max 64Kbyte */
if (ConfigInfo->AtdiskPrimaryClaimed == FALSE)
{
/* Both channels unclaimed: Claim primary channel */
DPRINT1("Primary channel!\n");
DevExt->CommandPortBase = 0x01F0;
DevExt->ControlPortBase = 0x03F6;
ConfigInfo->BusInterruptLevel = 14;
ConfigInfo->BusInterruptVector = 14;
ConfigInfo->InterruptMode = LevelSensitive;
ConfigInfo->AccessRanges[0].RangeStart = ScsiPortConvertUlongToPhysicalAddress(0x01F0);
ConfigInfo->AccessRanges[0].RangeLength = 8;
ConfigInfo->AccessRanges[0].RangeInMemory = FALSE;
ConfigInfo->AccessRanges[1].RangeStart = ScsiPortConvertUlongToPhysicalAddress(0x03F6);
ConfigInfo->AccessRanges[1].RangeLength = 1;
ConfigInfo->AccessRanges[1].RangeInMemory = FALSE;
ConfigInfo->AtdiskPrimaryClaimed = TRUE;
ChannelFound = TRUE;
*Again = FALSE/*TRUE*/;
}
else if (ConfigInfo->AtdiskSecondaryClaimed == FALSE)
{
/* Primary channel already claimed: claim secondary channel */
DPRINT1("Secondary channel!\n");
DevExt->CommandPortBase = 0x0170;
DevExt->ControlPortBase = 0x0376;
ConfigInfo->BusInterruptLevel = 15;
ConfigInfo->BusInterruptVector = 15;
ConfigInfo->InterruptMode = LevelSensitive;
ConfigInfo->AccessRanges[0].RangeStart = ScsiPortConvertUlongToPhysicalAddress(0x0170);
ConfigInfo->AccessRanges[0].RangeLength = 8;
ConfigInfo->AccessRanges[0].RangeInMemory = FALSE;
ConfigInfo->AccessRanges[1].RangeStart = ScsiPortConvertUlongToPhysicalAddress(0x0376);
ConfigInfo->AccessRanges[1].RangeLength = 1;
ConfigInfo->AccessRanges[1].RangeInMemory = FALSE;
ConfigInfo->AtdiskSecondaryClaimed = TRUE;
ChannelFound = TRUE;
*Again = FALSE;
}
else
{
DPRINT1("AtapiFindIsaBusController() both channels claimed. Returns: SP_RETURN_NOT_FOUND\n");
*Again = FALSE;
return(SP_RETURN_NOT_FOUND);
}
if (ConfigInfo->AtdiskSecondaryClaimed == TRUE)
/* Find attached devices */
if (ChannelFound)
{
DPRINT("Secondary IDE controller already claimed!\n");
DeviceFound = AtapiFindDevices(DevExt,
ConfigInfo);
}
DPRINT("AtapiFindIsaBusController() done!\n");
return(SP_RETURN_NOT_FOUND);
DPRINT1("AtapiFindIsaBusController() returns: SP_RETURN_FOUND\n");
return(SP_RETURN_FOUND);
}
@ -821,14 +881,16 @@ AtapiFindDevices(PATAPI_MINIPORT_EXTENSION DeviceExtension,
for (UnitNumber = 0; UnitNumber < 2; UnitNumber++)
{
/* disable interrupts */
IDEWriteDriveControl(ControlPortBase,
IDE_DC_nIEN);
/* select drive */
/* Select drive */
IDEWriteDriveHead(CommandPortBase,
IDE_DH_FIXED | (UnitNumber ? IDE_DH_DRV1 : 0));
ScsiPortStallExecution(500);
/* Disable interrupts */
IDEWriteDriveControl(ControlPortBase,
IDE_DC_nIEN);
ScsiPortStallExecution(500);
IDEWriteCylinderHigh(CommandPortBase, 0);
IDEWriteCylinderLow(CommandPortBase, 0);
IDEWriteCommand(CommandPortBase, IDE_CMD_RESET);
@ -1086,9 +1148,14 @@ AtapiPolledRead(IN ULONG CommandPort,
UCHAR Status;
UCHAR Control;
/* Write Drive/Head to select drive */
IDEWriteDriveHead(CommandPort, IDE_DH_FIXED | DrvHead);
ScsiPortStallExecution(500);
/* Disable interrupts */
Control = IDEReadAltStatus(ControlPort);
IDEWriteDriveControl(ControlPort, Control | IDE_DC_nIEN);
ScsiPortStallExecution(500);
/* Wait for STATUS.BUSY and STATUS.DRQ to clear */
for (RetryCount = 0; RetryCount < IDE_MAX_BUSY_RETRIES; RetryCount++)