Get IDE hard drive ID via port

#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 to 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:\n", loop);


printf ("Model number______________________:%s\n", Getascii (Diskdata, 27, 46));


printf ("Serial number_____________________:%s\n", Getascii (Diskdata, 10, 19));


printf ("Controller Revision number________:%s\n\n", Getascii (Diskdata, 23, 26));


printf ("Able to do Double Word transfer___:%6s\n", (diskdata[48) = = 0? "No": "Yes");


printf ("Controller type___________________:%04x\n", diskdata[20]);


printf ("Controller buffer size (bytes) ___:%6u\n", diskdata[21] * 512);


printf ("Number of ECC bytes transferred___:%6u\n", diskdata[22]);


printf ("Number of sectors per interrupt___:%6u\n\n", diskdata[47]);


printf ("Hard Disk reports\n");


printf ("Number of cylinders (Fixed) ___:%6u\n", diskdata[1]);


printf ("Number of heads___________________:%6u\n", diskdata[3));


printf ("Number of sectors per track_______:%6u\n\n", diskdata[6]);


printf ("BIOS reports\n");


printf ("Number of cylinders_______________:%6u\n", Bioscyl[loop));


printf ("Number of heads___________________:%6u\n", Bioshead[loop));


printf ("Number of sectors per track_______:%6u\n\n", Biossec[loop]);


printf ("Press any key to continue...\n\n");


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] = ' the '; /* Make sure it ends in a NULL character * *


return retVal;


}/* GETASCII () * *