tony@ajfcal.uucp (tony field) (12/09/89)
How does one format a disk with greater than 1024 cylendars? I have tried software such as SpeedStore or Ontrack's disk manager, however they seem to fail over 1024 cyls, probably because the rom facilities do not permit the formatting operation. I have also tried the internal formatting facilities of WD1003 controllers and that still fails. tony...
swatt@cup.portal.com (Steven Edward Watt) (12/13/89)
I wound up writing a little program to do this... You have to run the
controller hardware directly, though....
This was only run on a WD1106-WA2.
--------Cut here--------------------
#!/bin/sh
#
# Feed me to sh
#
#
echo x - fmthd.c
sed 's/^X//' >fmthd.c <<'*-*-END-of-fmthd.c-*-*'
X#include <stdio.h>
X#include <conio.h>
X
X#define START 1000
X#define END 1166
X
X#define DRIVE 0
X#define HEADS 7
X#define SECS_PER_TRACK 17
X
X#define DATA_REG 0x1f0
X#define ERROR_REG 0x1f1
X#define PRECOMP_REG 0x1f1
X#define COUNT_REG 0x1f2
X#define SECTOR_REG 0x1f3
X#define CYL_LOW_REG 0x1f4
X#define CYL_HI_REG 0x1f5
X#define DRV_HD_REG 0x1f6
X #define drive_head(d, h) (0xA0 | (d << 4) | (h))
X
X#define STATUS_REG 0x1f7
X#define COMMAND_REG 0x1f7
X
X#define RESET_COMMAND 0x1F
X#define FORMAT_COMMAND 0x50
X
Xunsigned char interleave_table[512] = {
X 0, 1, 0, 2, 0, 3, 0, 4, 0, 5, 0, 6, 0, 7, 0, 8, 0, 9,
X 0, 10, 0, 11, 0, 12, 0, 13, 0, 14, 0, 15, 0, 16, 0, 17
X};
X
Xdoinp(unsigned x)
X{
X unsigned short val;
X
X val = inp(x);
X printf("(%03x: %02x) (%02x & 0x08 = %02x)\n", x, val, val, val & 0x08);
X return (val);
X}
X/*
X#define inp(x) doinp(x)
X*/
X
Xmain()
X{
X int cyl, head;
X unsigned short c;
X
X outp(COMMAND_REG, RESET_COMMAND);
X wait_notbusy();
X
X printf("Starting format...\n");
X
X for (cyl = START; cyl < END; cyl++)
X {
X printf("\rcyl %4d head ", cyl);
X outp(CYL_LOW_REG, cyl & 0x00FF);
X wait_notbusy();
X outp(CYL_HI_REG, (cyl & 0xFF00) >> 8);
X wait_notbusy();
X
X for (head = 0; head < HEADS; head++)
X {
X printf("\b\b%2d", head);
X
X outp(DRV_HD_REG, drive_head(DRIVE, head));
X wait_notbusy();
X
X outp(COUNT_REG, SECS_PER_TRACK);
X wait_notbusy();
X
X outp(COMMAND_REG, FORMAT_COMMAND);
X wait_notbusy();
X send_block(interleave_table);
X
X wait_notbusy();
X if ((c = (inp(STATUS_REG) & 0xFD)) != 0x51)
X printf("... status = %02x\ncyl %4d head ", c, cyl);
X }
X }
X printf("\nDone.\n");
X}
X
Xwait_notbusy()
X{
X wait_until(0x80, 0);
X}
X
Xwait_until(unsigned mask, unsigned state)
X{
X unsigned long loop1, loop2;
X
X for (loop1 = 0L; loop1 < 400L; loop1++)
X for (loop2 = 0L; loop2 < 40000000L; loop2++)
X if ((inp(STATUS_REG) & mask) == state)
X return ;
X
X fprintf(stderr, "Timeout! mask = %02x\n\n", mask);
X exit(0);
X}
X
Xsend_block(unsigned *block)
X{
X int i;
X
X wait_until(0x08, 0x08);
X stream_to_port(256, DATA_REG, interleave_table);
X}
*-*-END-of-fmthd.c-*-*
echo x - strport.asm
sed 's/^X//' >strport.asm <<'*-*-END-of-strport.asm-*-*'
X page 60, 132
X Title Stream to a port (186/286/386(/486?))
X .model small, c
Xassume cs:@code, ds:@data, ss:@data
X .286C
X .lall
X
X .code
Xstream_to_port proc uses si, count:word, port:word, block:ptr word
X
X mov cx, count
X mov dx, port
X mov si, block
X cld
X
X rep outsw
X
X ret
X
Xstream_to_port endp
X
X end
*-*-END-of-strport.asm-*-*
exit
Your mileage may vary, depending on moon phase, etc...
Note: This was for an interleave of 1, because the 1006 is a buffered
controller... I wouldn't even try this on a 1003 without re-arranging the
interleave_table.
The reason the interleave_table is so huge is because the card works in
512 byte blocks ONLY.
Good luck!
Steve Watt
...!claris!zok!wattres!steve
or swatt@cup.portal.com