// ù Ä ÄÄÄÄÍÍ = Ä  ù  Ä = ÍÍÄÄÄÄ Ä ù
// ³                               ³
//    ÜÛÛÛÛÛÛÛÜ   ÜÛÜ  ÜÛÛÛÛÛÛÛÛÜ          ú  úÄÄÄÍÄÄÍÄÍÍÄÄÍÍÍÍÄÍÍÍÍÍÍÍÍÍÎÄ
// ³ ÛÛÛÛßßßÛÛÛÛ ÛÛÛÛÛ ÛÛÛß   ßÛÛÛ ³           AiR-BOOT - Installer/2    º
// º ÛÛÛÛÜÜÜÛÛÛÛ ÛÛÛÛÛ ÛÛÛÜ   ÜÛÛÛ º      ú ÄÄÄÄÍÄÍÍÄÄÍÍÍÍÄÍÍÍÍÍÍÍÍÄÍÍÍÍÍÎÄ
// º ÛÛÛÛÛÛÛÛÛÛÛ ÛÛÛÛÛ ÛÛÛÛÛÛÛÛÛß  º       Section: AiR-BOOTUP Package   º
// º ÛÛÛÛ   ÛÛÛÛ ÛÛÛÛÛ ÛÛÛÛ ßÛÛÛÛÜ º     ³ Created: 24/10/02             º
// ³ ßÛÛß   ßÛÛß  ßÛß  ßÛÛß   ßÛÛß ³     ³ Last Modified:                ³
//                  ÜÜÜ                  ³ Number Of Modifications: 000  ³
// ù              ÜÛÛß             ù     ³ INCs required: *none*         ³
//      ÄÄÄÄÄÄÄ ÜÛÛß                     º Written By: Martin Kiewitz    ³
// ³     Ú¿Ú¿³ÜÛÛÛÜÜÛÛÛÜ           ³     º (c) Copyright by              ³
// º     ÀÙ³ÀÙßÛÛÛßßÜÛÛß           º     º      AiR ON-Line Software '02 ú
// º    ÄÄÄÄÄÄÄ    ÜÛÛÝ            º     º All rights reserved.
// º              ÜÛÛÛÄÄÄÄÄÄÄÄÄ    º    ÄÎÍÍÍÄÍÍÍÍÍÄÍÍÍÍÄÍÍÄÄÍÄÄÍÄÄÄúÄÄ  ú
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// ³            ÜÛÛÛÛ Àij³ÀÙ³Ä     ³
//             ßÛÛÛÛÝÄÄÄÄÄÄÄÄÄÄ     
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// ù Ä´-=’iç éï-Liïî SéŸâW’çî=-ÃÄÄ ù

#define INCL_NOPMAPI
#define INCL_DOS
#define INCL_DOSDEVIOCTL
#include <os2.h>
#include <malloc.h>

#include <global.h>

USHORT PHYS_EnumeratePhysicalDisks (void) {
   USHORT NumDrives = 0;

   if (DosPhysicalDisk(INFO_COUNT_PARTITIONABLE_DISKS, &NumDrives, sizeof(NumDrives),NULL, 0) != 0)
      return 0;
   return NumDrives;
 }

USHORT PHYS_GetIOCTLHandle (PSZ DriveID) {
   USHORT IOCTLHandle = 0;

   if (DosPhysicalDisk(INFO_GETIOCTLHANDLE, &IOCTLHandle, sizeof(IOCTLHandle),DriveID, 3) != 0)
      return 0;
   return IOCTLHandle;
 }

VOID PHYS_FreeIOCTLHandle (USHORT IOCTLHandle) {
   DosPhysicalDisk(INFO_FREEIOCTLHANDLE, NULL, 0, &IOCTLHandle, sizeof(IOCTLHandle));
   return;
 }

BOOL PHYS_ReadPhysicalSector (USHORT IOCTLHandle, UCHAR Cylinder, UCHAR Head, UCHAR SectorCount, PBYTE BufferPtr) {
   ULONG       TrackLayoutLen  = sizeof(TRACKLAYOUT)+sizeof(ULONG)*(SectorCount-1);
   TRACKLAYOUT *TrackLayoutPtr = malloc(TrackLayoutLen);
   ULONG       cbParms = sizeof(TrackLayoutPtr);
   ULONG       cbData  = 512;
   INT         i;

   TrackLayoutPtr->bCommand      = 0x01;
   TrackLayoutPtr->usHead        = Head;
   TrackLayoutPtr->usCylinder    = Cylinder;
   TrackLayoutPtr->usFirstSector = 0;
   TrackLayoutPtr->cSectors      = SectorCount;

   for (i=0; i<SectorCount; i++) {
      TrackLayoutPtr->TrackTable[i].usSectorNumber = i+1;
      TrackLayoutPtr->TrackTable[i].usSectorSize   = 512;
    }

   i = 1;
   if (DosDevIOCtl(IOCTLHandle, IOCTL_PHYSICALDISK, PDSK_READPHYSTRACK,
       TrackLayoutPtr, cbParms, &cbParms, BufferPtr, cbData, &cbData))
      i = 0;
   free (TrackLayoutPtr);
   return i;
 }

BOOL PHYS_WritePhysicalSector (USHORT IOCTLHandle, UCHAR Cylinder, UCHAR Head, UCHAR SectorCount, PBYTE BufferPtr) {
   ULONG       TrackLayoutLen  = sizeof(TRACKLAYOUT)+sizeof(ULONG)*(SectorCount-1);
   TRACKLAYOUT *TrackLayoutPtr = malloc(TrackLayoutLen);
   ULONG       cbParms = sizeof(TrackLayoutPtr);
   ULONG       cbData  = 512;
   INT         i;

   TrackLayoutPtr->bCommand      = 0x01;
   TrackLayoutPtr->usHead        = Head;
   TrackLayoutPtr->usCylinder    = Cylinder;
   TrackLayoutPtr->usFirstSector = 0;
   TrackLayoutPtr->cSectors      = SectorCount;

   for (i=0; i<SectorCount; i++) {
      TrackLayoutPtr->TrackTable[i].usSectorNumber = i+1;
      TrackLayoutPtr->TrackTable[i].usSectorSize   = 512;
    }

   i = 1;
   if (DosDevIOCtl(IOCTLHandle, IOCTL_PHYSICALDISK, PDSK_WRITEPHYSTRACK,
       TrackLayoutPtr, cbParms, &cbParms, BufferPtr, cbData, &cbData))
      i = 0;
   free (TrackLayoutPtr);
   return i;
 }

USHORT PHYS_GetGeometrySectorsPerTrack (USHORT IOCTLHandle) {
   DEVICEPARAMETERBLOCK DeviceParmBlock;
   ULONG                ulDataLength;
   
   if (!DosDevIOCtl(IOCTLHandle, IOCTL_PHYSICALDISK, PDSK_GETPHYSDEVICEPARAMS,
       NULL, 0, NULL, &DeviceParmBlock, sizeof(DeviceParmBlock), &ulDataLength))
      return DeviceParmBlock.cSectorsPerTrack;
   return 0;
 }

USHORT PHYS_GetGeometryHeadsPerCylinder (USHORT IOCTLHandle) {
   DEVICEPARAMETERBLOCK DeviceParmBlock;
   ULONG                ulDataLength;
   
   if (!DosDevIOCtl(IOCTLHandle, IOCTL_PHYSICALDISK, PDSK_GETPHYSDEVICEPARAMS,
       NULL, 0, NULL, &DeviceParmBlock, sizeof(DeviceParmBlock), &ulDataLength))
      return DeviceParmBlock.cHeads;
   return 0;
 }