1 /* swapgeneric.c 4.5 82/12/17 */ 2 3 #include "mba.h" 4 5 #include "../machine/pte.h" 6 7 #include "../h/param.h" 8 #include "../h/conf.h" 9 #include "../h/buf.h" 10 #include "../h/vm.h" 11 #include "../h/systm.h" 12 #include "../h/reboot.h" 13 14 #include "../vax/cons.h" 15 #include "../vax/mtpr.h" 16 #include "../vaxmba/mbareg.h" 17 #include "../vaxmba/mbavar.h" 18 #include "../vaxuba/ubareg.h" 19 #include "../vaxuba/ubavar.h" 20 21 /* 22 * Generic configuration; all in one 23 */ 24 dev_t rootdev, argdev, dumpdev; 25 int nswap; 26 struct swdevt swdevt[] = 27 { 28 -1, 1, 29 0, 0, 30 }; 31 long dumplo; 32 33 extern struct mba_driver hpdriver; 34 extern struct uba_driver scdriver; 35 extern struct uba_driver hkdriver; 36 extern struct uba_driver idcdriver; 37 extern struct uba_driver udadriver; 38 39 struct genericconf { 40 caddr_t gc_driver; 41 char *gc_name; 42 dev_t gc_root; 43 long gc_nswap; 44 long gc_dumplo; 45 } genericconf[] = { 46 (caddr_t)&hpdriver, "hp", makedev(0, 0), 33440, 33440 - 10*2048, 47 (caddr_t)&scdriver, "up", makedev(2, 0), 33440, 33440 - 10*2048, 48 (caddr_t)&udadriver, "ra", makedev(9, 0), 33440, 33440 - 10*2048, 49 (caddr_t)&idcdriver, "rb", makedev(11, 0),33440, 33440 - 10*2048, 50 (caddr_t)&idcdriver, "rl", makedev(11, 0), 4480, 0, 51 (caddr_t)&hkdriver, "hk", makedev(3, 0), 10032, 10032 - 2*(2048+1024), 52 0, 53 }; 54 55 setconf() 56 { 57 register struct mba_device *mi; 58 register struct uba_device *ui; 59 register struct genericconf *gc; 60 int unit, swaponroot = 0; 61 62 if (boothowto & RB_ASKNAME) { 63 char name[128]; 64 retry: 65 printf("root device? "); 66 gets(name); 67 for (gc = genericconf; gc->gc_driver; gc++) 68 if (gc->gc_name[0] == name[0] && 69 gc->gc_name[1] == name[1]) 70 goto gotit; 71 goto bad; 72 gotit: 73 if (name[3] == '*') { 74 name[3] = name[4]; 75 swaponroot++; 76 } 77 if (name[2] >= '0' && name[2] <= '7' && name[3] == 0) { 78 unit = name[2] - '0'; 79 goto found; 80 } 81 printf("bad/missing unit number\n"); 82 bad: 83 printf("use hp%%d, up%%d, ra%%d, rb%%d, rl%%d or hk%%d\n"); 84 goto retry; 85 } 86 unit = 0; 87 for (gc = genericconf; gc->gc_driver; gc++) { 88 for (mi = mbdinit; mi->mi_driver; mi++) { 89 if (mi->mi_alive == 0) 90 continue; 91 if (mi->mi_unit == 0 && mi->mi_driver == 92 (struct mba_driver *)gc->gc_driver) { 93 printf("root on %s0\n", mi->mi_driver->md_dname); 94 goto found; 95 } 96 } 97 for (ui = ubdinit; ui->ui_driver; ui++) { 98 if (ui->ui_alive == 0) 99 continue; 100 if (ui->ui_unit == 0 && ui->ui_driver == 101 (struct uba_driver *)gc->gc_driver) { 102 printf("root on %s0\n", 103 ui->ui_driver->ud_dname); 104 goto found; 105 } 106 } 107 } 108 printf("no suitable root\n"); 109 asm("halt"); 110 found: 111 gc->gc_root = makedev(major(gc->gc_root), unit*8); 112 rootdev = gc->gc_root; 113 swdevt[0].sw_dev = argdev = dumpdev = 114 makedev(major(rootdev), minor(rootdev)+1); 115 nswap = gc->gc_nswap; 116 dumplo = gc->gc_dumplo; 117 if (swaponroot) 118 rootdev = dumpdev; 119 } 120 121 getchar() 122 { 123 register c; 124 125 while((mfpr(RXCS)&RXCS_DONE) == 0) 126 ; 127 c = mfpr(RXDB)&0177; 128 if (c=='\r') 129 c = '\n'; 130 cnputc(c); 131 return(c); 132 } 133 134 gets(cp) 135 char *cp; 136 { 137 register char *lp; 138 register c; 139 140 lp = cp; 141 for (;;) { 142 c = getchar() & 0177; 143 switch(c) { 144 case '\n': 145 case '\r': 146 *lp++ = '\0'; 147 return; 148 case '\b': 149 case '#': 150 lp--; 151 if (lp < cp) 152 lp = cp; 153 continue; 154 case '@': 155 case 'u'&037: 156 lp = cp; 157 cnputc('\n'); 158 continue; 159 default: 160 *lp++ = c; 161 } 162 } 163 } 164