通过端口获取IDE硬盘ID

通过端口获取IDE硬盘ID2008-01-05
#include
#include
#include
#include
#include
char *GetAscii（unsigned int inData[], int offStart, int offEnd）;
int main（void）
{
  unsigned int  diskData[256];  /* Disk data         */
  unsigned int  offset;      /* Disk data offset      */
  int      loop;
  int      numDrv;      /* Number of IDE hard drives */
  union REGS   registers;
  unsigned int  biosCyl[2];    /* Cylinders, Heads, Sectors */
  unsigned int  biosHead[2];
  unsigned int  biosSec [2];
  numDrv = peekb（0x40, 0x75）;   /* BIOS Data area, Number of Hard disks */
  for （loop = 0; loop < numDrv; loop++）
  {
   while （inp（0x01f7） ！= 0x50）; /* Wait for controller not busy     */
   outp（0x01f6, （loop == 0 ？ 0xa0 : 0xb0））; /* Get first/second drive  */
   outp（0x01f7, 0xec）;            /* Get drive info data   */
   while （inp（0x1f7） ！= 0x58）;  /* Wait for data ready         */
   for （offset = 0; offset ！= 256; offset++） /* Read "sector"      */
     diskData[offset] = inpw（0x1f0）;
   /* Get BIOS drive info */
   registers.h.ah = 0x08;    /* Get drive info             */
   registers.h.dl = 0x80 + loop; /* Drive is 80H for Disk 0, 81H for Disk 1 */
   int86（0x13, ？isters, ？isters）;
   if （！registers.x.cflag）    /* All OK if carry not set */
   {
     biosHead[loop] = registers.h.dh + 1;   /* Heads are from 0 */
     biosSec[loop] = registers.h.cl & 0x3f;  /* sec is bits 5 - 0 */
     /* +1 because starts from 0 and +1 for FDISK leaving one out */
     biosCyl[loop] = （（registers.h.cl & 0xc0） << 2） + registers.h.ch + 2;
   } /* end of if */
   printf（"DRIVE %d:
", loop）;
   printf（"Model Number______________________: %s
", GetAscii（diskData, 27, 46））;
   printf（"Serial Number_____________________: %s
", GetAscii（diskData, 10, 19））;
   printf（"Controller Revision Number________: %s

", GetAscii（diskData, 23, 26））;
   printf（"Able to do Double Word Transfer___: %6s
", （diskData[48] == 0 ？ "No" : "Yes"））;
   printf（"Controller type___________________:  %04X
", diskData[20]）;
   printf（"Controller buffer size （bytes）____: %6u
", diskData[21] * 512）;
   printf（"Number of ECC bytes transferred___: %6u
", diskData[22]）;
   printf（"Number of sectors per interrupt___: %6u

", diskData[47]）;
   printf（"Hard Disk Reports
"）;
   printf（"Number of Cylinders （Fixed）_______: %6u
", diskData[1]）;
   printf（"Number of Heads___________________: %6u
", diskData[3]）;
   printf（"Number of Sectors per Track_______: %6u

", diskData[6]）;
   printf（"BIOS Reports
"）;
   printf（"Number of Cylinders_______________: %6u
", biosCyl[loop]）;
   printf（"Number of Heads___________________: %6u
", biosHead[loop]）;
   printf（"Number of Sectors per Track_______: %6u

", biosSec[loop]）;
   printf（"Press any key to continue...

"）;
   getch（）;
  } /* end of for */
  return 0;
} /* main（） */
char *GetAscii（unsigned int inData[], int offStart, int offEnd）
{
  static char retVal[255];
  int     loop, loop1;
  for （loop = offStart, loop1 = 0; loop <= offEnd; loop++）
  {
   retVal[loop1++] = （char ）（inData[loop] / 256）; /* Get High byte */
   retVal[loop1++] = （char ）（inData[loop] % 256）; /* Get Low byte */
  } /* end of for */
  retVal[loop1] = "";  /* Make sure it ends in a NULL character */
  return retVal;
} /* GetAscii（） */