Annotation of sys/arch/mvme88k/stand/wrtvid/wrtvid.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: wrtvid.c,v 1.7 2007/06/17 00:28:57 deraadt Exp $ */
! 2:
! 3: /*
! 4: * Copyright (c) 1995 Dale Rahn <drahn@openbsd.org>
! 5: *
! 6: * Permission to use, copy, modify, and distribute this software for any
! 7: * purpose with or without fee is hereby granted, provided that the above
! 8: * copyright notice and this permission notice appear in all copies.
! 9: *
! 10: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
! 11: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
! 12: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
! 13: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
! 14: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
! 15: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
! 16: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
! 17: */
! 18:
! 19: #include <sys/types.h>
! 20: #include <sys/stat.h>
! 21: #include <sys/disklabel.h>
! 22: #include <unistd.h>
! 23: #include <fcntl.h>
! 24: #include <stdio.h>
! 25: #include <stdlib.h>
! 26: #include <string.h>
! 27:
! 28: void copy_exe(int, int);
! 29: void swabcfg(struct mvmedisklabel *);
! 30: void swabvid(struct mvmedisklabel *);
! 31:
! 32: int
! 33: main(argc, argv)
! 34: int argc;
! 35: char **argv;
! 36: {
! 37: struct mvmedisklabel *pcpul;
! 38: struct stat stat;
! 39: int exe_file;
! 40: int tape_vid;
! 41: int tape_exe;
! 42: unsigned int exe_addr;
! 43: char *filename;
! 44: char fileext[256];
! 45:
! 46: if (argc == 1)
! 47: filename = "a.out";
! 48: else
! 49: filename = argv[1];
! 50:
! 51: exe_file = open(filename, O_RDONLY,0444);
! 52: if (exe_file == -1) {
! 53: perror(filename);
! 54: exit(2);
! 55: }
! 56: snprintf(fileext, sizeof fileext, "%c%cboot", filename[4], filename[5]);
! 57: tape_vid = open(fileext, O_WRONLY|O_CREAT|O_TRUNC, 0644);
! 58: snprintf(fileext, sizeof fileext, "boot%c%c", filename[4], filename[5]);
! 59: tape_exe = open(fileext, O_WRONLY|O_CREAT|O_TRUNC,0644);
! 60:
! 61: pcpul = (struct mvmedisklabel *)malloc(sizeof(struct mvmedisklabel));
! 62: bzero(pcpul, sizeof(struct mvmedisklabel));
! 63:
! 64: pcpul->version = 1;
! 65: memcpy(pcpul->vid_id, "M88K", sizeof pcpul->vid_id);
! 66:
! 67: fstat(exe_file, &stat);
! 68: /* size in 256 byte blocks round up after a.out header removed */
! 69:
! 70: if (filename[5] == 't' ) {
! 71: pcpul->vid_oss = 1;
! 72: }else {
! 73: pcpul->vid_oss = 2;
! 74: }
! 75: pcpul->vid_osl = (((stat.st_size -0x20) +511) / 512) *2;
! 76:
! 77: lseek(exe_file, 0x14, SEEK_SET);
! 78: read(exe_file, &exe_addr, 4);
! 79:
! 80: /* check this, it may not work in both endian. */
! 81: /* No, it doesn't. Use a big endian machine for now. SPM */
! 82:
! 83: {
! 84: union {
! 85: struct s {
! 86: unsigned short s1;
! 87: unsigned short s2;
! 88: } s;
! 89: unsigned long l;
! 90: } a;
! 91: a.l = exe_addr;
! 92: pcpul->vid_osa_u = a.s.s1;
! 93: pcpul->vid_osa_l = a.s.s2;
! 94:
! 95: }
! 96: pcpul->vid_cas = 1;
! 97: pcpul->vid_cal = 1;
! 98: /* do not want to write past end of structure, not null terminated */
! 99: strncpy(pcpul->vid_mot, "MOTOROLA", 8);
! 100:
! 101: if (BYTE_ORDER != BIG_ENDIAN)
! 102: swabvid(pcpul);
! 103:
! 104: pcpul->cfg_rec = 0x100;
! 105: pcpul->cfg_psm = 0x200;
! 106:
! 107: if (BYTE_ORDER != BIG_ENDIAN)
! 108: swabcfg(pcpul);
! 109:
! 110: write(tape_vid, pcpul, sizeof(struct mvmedisklabel));
! 111:
! 112: free(pcpul);
! 113:
! 114: copy_exe(exe_file, tape_exe);
! 115: close(exe_file);
! 116: close(tape_vid);
! 117: close(tape_exe);
! 118: return (0);
! 119: }
! 120:
! 121: #define BUF_SIZ 512
! 122: void
! 123: copy_exe(exe_file, tape_exe)
! 124: int exe_file, tape_exe;
! 125: {
! 126: char *buf;
! 127: int cnt = 0;
! 128:
! 129: buf = (char *)malloc(BUF_SIZ);
! 130:
! 131: lseek (exe_file, 0x20, SEEK_SET);
! 132: while (BUF_SIZ == (cnt = read(exe_file, buf, BUF_SIZ))) {
! 133: write(tape_exe, buf, cnt);
! 134: }
! 135: bzero(&buf[cnt], BUF_SIZ-cnt);
! 136: write(tape_exe, buf, BUF_SIZ);
! 137: }
! 138:
! 139: void
! 140: swabvid(pcpul)
! 141: struct mvmedisklabel *pcpul;
! 142: {
! 143: swap32(pcpul->vid_oss);
! 144: swap16(pcpul->vid_osl);
! 145: #if 0
! 146: swap16(pcpul->vid_osa_u);
! 147: swap16(pcpul->vid_osa_l);
! 148: #endif
! 149: swap32(pcpul->vid_cas);
! 150: }
! 151:
! 152: void
! 153: swabcfg(pcpul)
! 154: struct mvmedisklabel *pcpul;
! 155: {
! 156: swap16(pcpul->cfg_atm);
! 157: swap16(pcpul->cfg_prm);
! 158: swap16(pcpul->cfg_atm);
! 159: swap16(pcpul->cfg_rec);
! 160: swap16(pcpul->cfg_trk);
! 161: swap16(pcpul->cfg_psm);
! 162: swap16(pcpul->cfg_shd);
! 163: swap16(pcpul->cfg_pcom);
! 164: swap16(pcpul->cfg_rwcc);
! 165: swap16(pcpul->cfg_ecc);
! 166: swap16(pcpul->cfg_eatm);
! 167: swap16(pcpul->cfg_eprm);
! 168: swap16(pcpul->cfg_eatw);
! 169: swap16(pcpul->cfg_rsvc1);
! 170: swap16(pcpul->cfg_rsvc2);
! 171: }
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