/*      $NetBSD: disklabel.c,v 1.10 2015/02/14 13:07:39 tsutsui Exp $   */

/*
* Copyright (c) 1992 OMRON Corporation.
*
* This code is derived from software contributed to Berkeley by
* OMRON Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by the University of
*      California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*      @(#)disklabel.c 8.1 (Berkeley) 6/10/93
*/
/*
* Copyright (c) 1992, 1993
*      The Regents of the University of California.  All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* OMRON Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
*    may be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*      @(#)disklabel.c 8.1 (Berkeley) 6/10/93
*/

/*
* disklabel.c -- operate disklabel for BSD & OMRON
* by A.Fujita, FEB-17-1992
*/

#include <sys/param.h>
#define DKTYPENAMES
#define FSTYPENAMES
#include <sys/disklabel.h>
#include <ufs/ffs/fs.h>
#include <lib/libkern/libkern.h>
#include <luna68k/stand/boot/samachdep.h>
#include <luna68k/stand/boot/status.h>
#include <luna68k/stand/boot/omron_disklabel.h>

static void display(struct disklabel *);

#define SBSIZE SBLOCKSIZE
#define FS_MAGIC FS_UFS1_MAGIC
#define LABEL_SIZE BBSIZE

uint8_t lbl_buff[LABEL_SIZE];

#if 0
uint16_t
dkcksum(struct disklabel *lp)
{
       uint16_t *start, *end;
       uint16_t sum = 0;

       start = (uint16_t *)lp;
       end = (uint16_t *)&lp->d_partitions[lp->d_npartitions];
       while (start < end)
               sum ^= *start++;
       return sum;
}
#endif

int
disklabel(int argc, char *argv[])
{
       struct scd_dk_label *omp = (struct scd_dk_label *)lbl_buff;
       struct disklabel    *bp  = (struct disklabel *)&lbl_buff[LABELOFFSET];
       struct fs *fp = (struct fs *)lbl_buff;
       uint16_t *p;
       u_long chksum, count;
       char *q;
       int i, j;

       if (argc < 2) {
               printf("This command is required sub command !!\n");
               return ST_ERROR;
       }

       if (!strcmp(argv[1], "help")) {
               printf("Subcommand of disklabel\n\n");
               printf("\thelp:\t\tthis command\n");
               printf("\tread:\t\tread disklabel from scsi_device\n");
               printf("\twrite:\t\twrite disklabel to scsi_device\n");
               printf("\tomron:\t\tshow OMRON disklabel information\n");
               printf("\tbsd:\t\tshow BSD disklabel information\n");
               printf("\tcopy:\t\tcopy disklabel information from OMRON"
                   " to BSD\n");
               printf("\tchecksum:\tdoing checksum\n");
               printf("\tset:\t\tchange BSD disklabel information\n");
               printf("\n\n");
       } else if (!strcmp(argv[1], "read")) {
               if (scsi_read( 0, lbl_buff, LABEL_SIZE)) {
                       printf("Disk Label read done.\n");
               } else {
                       printf("Disk Label read error !!\n");
               }
       } else if (!strcmp(argv[1], "omron")) {
               i  = (int)&omp->dkl_badchk;
               i -= (int)lbl_buff;
               printf("Offset = %d\n", i);
               printf("\n");
               printf("Checksum of Bad Track:\t0x%x\n",
                   omp->dkl_badchk);
               printf("Logical Block Total:\t%u(0x%x)\n",
                   omp->dkl_maxblk, omp->dkl_maxblk);
               printf("Disk Drive Type:\t0x%x\n",
                   omp->dkl_dtype);
               printf("Number of Disk Drives:\t%d(0x%x)\n",
                   omp->dkl_ndisk, omp->dkl_ndisk);
               printf("Number of Data Cylinders:\t%d(0x%x)\n",
                   omp->dkl_ncyl, omp->dkl_ncyl);
               printf("Number of Alternate Cylinders:\t%d(0x%x)\n",
                   omp->dkl_acyl,omp->dkl_acyl);
               printf("Number of Heads in This Partition:\t%d(0x%x)\n",
                   omp->dkl_nhead, omp->dkl_nhead);
               printf("Number of 512 byte Sectors per Track:\t%d(0x%x)\n",
                   omp->dkl_nsect, omp->dkl_nsect);
               printf("Identifies Proper Label Locations:\t0x%x\n",
                   omp->dkl_bhead);
               printf("Physical Partition Number:\t%d(0x%x)\n",
                   omp->dkl_ppart, omp->dkl_ppart);
               for (i = 0; i < NLPART; i++)
                       printf("\t%d:\t%d\t%d\n", i,
                           omp->dkl_map[i].dkl_blkno,
                           omp->dkl_map[i].dkl_nblk);
               printf("Identifies This Label Format:\t0x%x\n",
                   omp->dkl_magic);
               printf("XOR Checksum of Sector:\t0x%x\n",
                   omp->dkl_cksum);
       } else if (!strcmp(argv[1], "checksum")) {
               if (omp->dkl_magic == DKL_MAGIC){
                       /* checksum of disk-label */
                       chksum = 0;
                       count = sizeof(struct scd_dk_label) / sizeof(short int);
                       for (p= (uint16_t *)lbl_buff; count > 0; count--) {
                               if (count == 1)
                                       printf("Check Sum: 0x%lx\n", chksum);
                               chksum ^= *p++;
                       }

                       printf("dkl_cksum: 0x%x\n", omp->dkl_cksum);

                       if (chksum != 0) {
                               printf("OMRON Disklabel check sum error.\n");
                       }
               } else {
                       printf("OMRON Disklabel not found.\n");
               }
       } else if (!strcmp(argv[1], "copy")) {
               memset(bp, 0, sizeof(struct disklabel));

               memcpy(bp->d_typename, lbl_buff, 16);

               bp->d_secsize    = DEV_BSIZE;
               bp->d_nsectors   = 38;
               bp->d_ntracks    = 12;
               bp->d_ncylinders = 1076;

               bp->d_type  = DKTYPE_SCSI;

               bp->d_secpercyl  = bp->d_nsectors * bp->d_ntracks;
               bp->d_secperunit = bp->d_secpercyl * bp->d_ncylinders;
               bp->d_rpm        = 3600;
               bp->d_interleave = 1;
               bp->d_trackskew  = 0;
               bp->d_cylskew    = 0;
               bp->d_headswitch = 0;
               bp->d_trkseek    = 0;
               bp->d_bbsize     = BBSIZE;
               bp->d_sbsize     = SBSIZE;

               for (i = 0; i < MAXPARTITIONS; i++) {
                       bp->d_partitions[i].p_size   =
                           omp->dkl_map[i].dkl_nblk;
                       bp->d_partitions[i].p_offset =
                           omp->dkl_map[i].dkl_blkno;
                       bp->d_partitions[i].p_fsize  = 1024;
                       bp->d_partitions[i].p_frag   = 8192 / 1024;
                       bp->d_partitions[i].p_fstype = FS_UNUSED;
               }

               bp->d_npartitions = MAXPARTITIONS;

               for (i = 0; i < NDDATA; i++) {
                       bp->d_drivedata[i] = 0;
               }

               memset(bp->d_packname, 0, 16);

               bp->d_magic    = DISKMAGIC;
               bp->d_magic2   = DISKMAGIC;
               bp->d_checksum = 0;
               bp->d_checksum = dkcksum(bp);

               /* restump checksum of OMRON disklabel */
               chksum = 0;
               count = sizeof(struct scd_dk_label) / sizeof(short int);
               for (p= (uint16_t *)lbl_buff; count > 1; count--) {
                       chksum ^= *p++;
               }
               printf("chksum: 0x%lx\n", chksum);

               omp->dkl_cksum = chksum;
               printf("dkl_cksum: 0x%x\n", omp->dkl_cksum);
       } else if (!strcmp(argv[1], "bsd")) {
               display(bp);
       } else if (!strcmp(argv[1], "write")) {
               if (scsi_write( 0, lbl_buff, LABEL_SIZE)) {
                       printf("Disk Label write done.\n");
               } else {
                       printf("Disk Label write error !!\n");
               }
       } else if (!strcmp(argv[1], "set")) {
               i = (argv[2])[1] - 'a';
               for (q = argv[3], j = 0; *q != '\0'; q++) {
                       j = (j * 10) + (*q - '0');
               }
               switch (*argv[2]) {
               case 'b':
                       bp->d_partitions[i].p_frag =
                           j / bp->d_partitions[i].p_fsize;
                       break;
               case 'f':       /* fragment size */
                       bp->d_partitions[i].p_fsize = j;
                       break;
               case 'o':       /* offset */
                       bp->d_partitions[i].p_offset = j;
                       omp->dkl_map[i].dkl_blkno = j;
                       break;
               case 'p':       /* size */
                       bp->d_partitions[i].p_size = j;
                       omp->dkl_map[i].dkl_nblk = j;
                       break;
               case 't':       /* FS type */
                       bp->d_partitions[i].p_fstype = j;
                       break;
               default:
                       break;
               }

               /* restump checksum of BSD disklabel */
               bp->d_checksum = 0;
               bp->d_checksum = dkcksum(bp);

               /* restump checksum of OMRON disklabel */
               chksum = 0;
               count = sizeof(struct scd_dk_label) / sizeof(short int);
               for (p = (uint16_t *)lbl_buff; count > 1; count--) {
                       chksum ^= *p++;
               }
               omp->dkl_cksum = chksum;

       } else if (!strcmp(argv[1], "sb")) {
#define BLOCK_SIZE      SBSIZE

               printf("checking Super Block: block size = %d bytes,"
                   " seek amount = 1 blocks\n", BLOCK_SIZE);
               i = j = 0;
               for (;;) {
                       if (scsi_read(i, lbl_buff, BLOCK_SIZE) == 0)
                               break;

                       if (fp->fs_magic == FS_MAGIC) {
                               printf("%d, (%d)\n", i, i - j);
                               j = i;
                       }
                       i++;
               }
       } else if (!strcmp(argv[1], "sbcopy")) {
               if (scsi_read(32, lbl_buff, BLOCK_SIZE) == 0) {
                       printf("sbcopy: read failed\n");
                       return ST_ERROR;
               }
               if (scsi_write(16, lbl_buff, BLOCK_SIZE) != 0) {
                       printf("sbcopy: copy done\n");
               } else {
                       printf("sbcopy: write failed\n");
               }
       }

       return ST_NORMAL;
}

static void
display(struct disklabel *lp)
{
       int i, j;
       struct partition *pp;

       if ((unsigned) lp->d_type < DKMAXTYPES)
               printf("type: %s\n", dktypenames[lp->d_type]);
       else
               printf("type: %d\n", lp->d_type);
       printf("disk: %s\n",  lp->d_typename);
       printf("label: %s\n", lp->d_packname);
       printf("flags:");
       if (lp->d_flags & D_REMOVABLE)
               printf(" removeable");
       if (lp->d_flags & D_ECC)
               printf(" ecc");
       if (lp->d_flags & D_BADSECT)
               printf(" badsect");
       printf("\n");
       printf("bytes/sector: %d\n", lp->d_secsize);
       printf("sectors/track: %d\n", lp->d_nsectors);
       printf("tracks/cylinder: %d\n", lp->d_ntracks);
       printf("sectors/cylinder: %d\n", lp->d_secpercyl);
       printf("cylinders: %d\n", lp->d_ncylinders);
       printf("rpm: %d\n", lp->d_rpm);
       printf("interleave: %d\n", lp->d_interleave);
       printf("trackskew: %d\n", lp->d_trackskew);
       printf("cylinderskew: %d\n", lp->d_cylskew);
       printf("headswitch: %d\t\t# milliseconds\n", lp->d_headswitch);
       printf("track-to-track seek: %d\t# milliseconds\n", lp->d_trkseek);
       printf("drivedata: ");
       for (i = NDDATA - 1; i >= 0; i--)
               if (lp->d_drivedata[i])
                       break;
       if (i < 0)
               i = 0;
       for (j = 0; j <= i; j++)
               printf("%d ", lp->d_drivedata[j]);
       printf("\n\n%d partitions:\n", lp->d_npartitions);
       printf("#        size   offset    fstype   [fsize bsize   cpg]\n");
       pp = lp->d_partitions;
       for (i = 0; i < lp->d_npartitions; i++, pp++) {
               if (pp->p_size) {
                       printf("  %c: %d %d  ", 'a' + i,
                          pp->p_size, pp->p_offset);
                       if ((unsigned) pp->p_fstype < FSMAXTYPES)
                               printf("%s", fstypenames[pp->p_fstype]);
                       else
                               printf("%d", pp->p_fstype);
                       switch (pp->p_fstype) {

                       case FS_UNUSED:                         /* XXX */
                               printf("    %d %d %s ",
                                   pp->p_fsize, pp->p_fsize * pp->p_frag, "");
                               break;

                       case FS_BSDFFS:
                               printf("    %d %d %d ",
                                   pp->p_fsize, pp->p_fsize * pp->p_frag,
                                   pp->p_cpg);
                               break;

                       default:
                               printf("%s", "");
                               break;
                       }
                       printf("\t# (Cyl. %d",
                           pp->p_offset / lp->d_secpercyl);
                       if (pp->p_offset % lp->d_secpercyl)
                               putchar('*');
                       else
                               putchar(' ');
                       printf("- %d",
                           (pp->p_offset +
                           pp->p_size + lp->d_secpercyl - 1) /
                           lp->d_secpercyl - 1);
                       if (pp->p_size % lp->d_secpercyl)
                               putchar('*');
                       printf(")\n");
               }
       }
}

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