/* * Copyright (c) 1988 Regents of the University of California. * All rights reserved. The Berkeley software License Agreement * specifies the terms and conditions for redistribution. * * %W% (Berkeley) %G% */ #include "param.h" #include "conf.h" #include "buf.h" #include "vm.h" #include "systm.h" #include "reboot.h" #include "pte.h" #include "cpu.h" #include "cp.h" #include "mtpr.h" #include "../tahoevba/vbavar.h" /* * Generic configuration; all in one */ dev_t rootdev = NODEV; dev_t argdev = NODEV; dev_t dumpdev = NODEV; int nswap; struct swdevt swdevt[] = { { -1, 1, 0 }, { 0, 0, 0 }, }; long dumplo; int dmmin, dmmax, dmtext; extern struct vba_driver vddriver; extern struct vba_driver hdcdriver; struct genericconf { caddr_t gc_driver; char *gc_name; dev_t gc_root; } genericconf[] = { { (caddr_t)&vddriver, "dk", makedev(1, 0), }, { (caddr_t)&hdcdriver, "hd", makedev(2, 0), }, { 0 }, }; setconf() { register struct vba_device *ui; register struct genericconf *gc; register char *cp, *gp; int unit, swaponroot = 0; if (rootdev != NODEV) goto doswap; unit = 0; if (boothowto & RB_ASKNAME) { char name[128]; retry: printf("root device? "); gets(name); for (gc = genericconf; gc->gc_driver; gc++) for (cp = name, gp = gc->gc_name; *cp == *gp; cp++) if (!*++gp) goto gotit; printf("use"); for (gc = genericconf; gc->gc_driver; gc++) printf(" %s%%d", gc->gc_name); printf("\n"); goto retry; gotit: cp = name + 2; if (*cp < '0' || *cp > '9') { printf("bad/missing unit number\n"); goto retry; } while (*cp >= '0' && *cp <= '9') unit = 10 * unit + *cp++ - '0'; if (*cp == '*') swaponroot++; } for (gc = genericconf; gc->gc_driver; gc++) { for (ui = vbdinit; ui->ui_driver; ui++) { if (ui->ui_alive == 0) continue; if (ui->ui_unit == 0 && ui->ui_driver == (struct vba_driver *)gc->gc_driver) { printf("root on %s0\n", ui->ui_driver->ud_dname); goto found; } } } printf("no suitable root\n"); asm("halt"); found: gc->gc_root = makedev(major(gc->gc_root), unit*8); rootdev = gc->gc_root; doswap: swdevt[0].sw_dev = argdev = dumpdev = makedev(major(rootdev), minor(rootdev)+1); /* swap size and dumplo set during autoconfigure */ if (swaponroot) rootdev = dumpdev; } gets(buf) char *buf; { register int c; register char *lp; for (lp = buf;;) { printf("%c", c = cngetc()&0177); switch (c) { case '\n': case '\r': *lp = '\0'; return; case '\b': case '\177': if (lp > buf) { --lp; printf("\b \b"); } break; case '#': if (lp > buf) --lp; break; case 'r'&037: *lp = 0; printf("\n"); printf("%s", buf); break; case '@': case 'u'&037: case 'w'&037: lp = buf; printf("%c", '\n'); break; default: *lp++ = c; } } /* NOTREACHED */ }