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1.1 root 1: /*
2: * Copyright (c) 1982, 1986 Regents of the University of California.
3: * All rights reserved. The Berkeley software License Agreement
4: * specifies the terms and conditions for redistribution.
5: *
6: * @(#)swapgeneric.c 7.1 (Berkeley) 6/6/86
7: */
8:
9: #include "mba.h"
10:
11: #include "pte.h"
12:
13: #include "param.h"
14: #include "conf.h"
15: #include "buf.h"
16: #include "vm.h"
17: #include "systm.h"
18: #include "reboot.h"
19:
20: #include "cons.h"
21: #include "mtpr.h"
22: #include "../vaxmba/mbareg.h"
23: #include "../vaxmba/mbavar.h"
24: #include "../vaxuba/ubareg.h"
25: #include "../vaxuba/ubavar.h"
26:
27: /*
28: * Generic configuration; all in one
29: */
30: dev_t rootdev = NODEV;
31: dev_t argdev = NODEV;
32: dev_t dumpdev = NODEV;
33: int nswap;
34: struct swdevt swdevt[] = {
35: { -1, 1, 0 },
36: { 0, 0, 0 },
37: };
38: long dumplo;
39: int dmmin, dmmax, dmtext;
40:
41: extern struct mba_driver hpdriver;
42: extern struct uba_driver scdriver;
43: extern struct uba_driver hkdriver;
44: extern struct uba_driver idcdriver;
45: extern struct uba_driver hldriver;
46: extern struct uba_driver udadriver;
47:
48: struct genericconf {
49: caddr_t gc_driver;
50: char *gc_name;
51: dev_t gc_root;
52: } genericconf[] = {
53: { (caddr_t)&hpdriver, "hp", makedev(0, 0), },
54: { (caddr_t)&scdriver, "up", makedev(2, 0), },
55: { (caddr_t)&udadriver, "ra", makedev(9, 0), },
56: { (caddr_t)&idcdriver, "rb", makedev(11, 0), },
57: { (caddr_t)&hldriver, "rl", makedev(14, 0), },
58: { (caddr_t)&hkdriver, "hk", makedev(3, 0), },
59: { (caddr_t)&hkdriver, "rk", makedev(3, 0), },
60: { 0 },
61: };
62:
63: setconf()
64: {
65: register struct mba_device *mi;
66: register struct uba_device *ui;
67: register struct genericconf *gc;
68: int unit, swaponroot = 0;
69:
70: if (rootdev != NODEV)
71: goto doswap;
72: if (boothowto & RB_ASKNAME) {
73: char name[128];
74: retry:
75: printf("root device? ");
76: gets(name);
77: for (gc = genericconf; gc->gc_driver; gc++)
78: if (gc->gc_name[0] == name[0] &&
79: gc->gc_name[1] == name[1])
80: goto gotit;
81: goto bad;
82: gotit:
83: if (name[3] == '*') {
84: name[3] = name[4];
85: swaponroot++;
86: }
87: if (name[2] >= '0' && name[2] <= '7' && name[3] == 0) {
88: unit = name[2] - '0';
89: goto found;
90: }
91: printf("bad/missing unit number\n");
92: bad:
93: printf("use hp%%d, up%%d, ra%%d, rb%%d, rl%%d or hk%%d\n");
94: goto retry;
95: }
96: unit = 0;
97: for (gc = genericconf; gc->gc_driver; gc++) {
98: for (mi = mbdinit; mi->mi_driver; mi++) {
99: if (mi->mi_alive == 0)
100: continue;
101: if (mi->mi_unit == 0 && mi->mi_driver ==
102: (struct mba_driver *)gc->gc_driver) {
103: printf("root on %s0\n",
104: mi->mi_driver->md_dname);
105: goto found;
106: }
107: }
108: for (ui = ubdinit; ui->ui_driver; ui++) {
109: if (ui->ui_alive == 0)
110: continue;
111: if (ui->ui_unit == 0 && ui->ui_driver ==
112: (struct uba_driver *)gc->gc_driver) {
113: printf("root on %s0\n",
114: ui->ui_driver->ud_dname);
115: goto found;
116: }
117: }
118: }
119: printf("no suitable root\n");
120: asm("halt");
121: found:
122: gc->gc_root = makedev(major(gc->gc_root), unit*8);
123: rootdev = gc->gc_root;
124: doswap:
125: swdevt[0].sw_dev = argdev = dumpdev =
126: makedev(major(rootdev), minor(rootdev)+1);
127: /* swap size and dumplo set during autoconfigure */
128: if (swaponroot)
129: rootdev = dumpdev;
130: }
131:
132: getchar()
133: {
134: register c;
135:
136: while ((mfpr(RXCS)&RXCS_DONE) == 0)
137: ;
138: c = mfpr(RXDB)&0177;
139: if (c == '\r')
140: c = '\n';
141: cnputc(c);
142: return (c);
143: }
144:
145: gets(cp)
146: char *cp;
147: {
148: register char *lp;
149: register c;
150:
151: lp = cp;
152: for (;;) {
153: c = getchar() & 0177;
154: switch (c) {
155: case '\n':
156: case '\r':
157: *lp++ = '\0';
158: return;
159: case '\b':
160: case '#':
161: case '\177':
162: lp--;
163: if (lp < cp)
164: lp = cp;
165: continue;
166: case '@':
167: case 'u'&037:
168: lp = cp;
169: cnputc('\n');
170: continue;
171: default:
172: *lp++ = c;
173: }
174: }
175: }
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