1 /*
2 * Copyright (c) 1988 University of Utah.
3 * Copyright (c) 1990, 1993
4 * The Regents of the University of California. All rights reserved.
5 *
6 * This code is derived from software contributed to Berkeley by
7 * the Systems Programming Group of the University of Utah Computer
8 * Science Department.
9 *
10 * %sccs.include.redist.c%
11 *
12 * from: Utah $Hdr: autoconf.c 1.16 92/05/29$
13 *
14 * @(#)autoconf.c 8.1 (Berkeley) 06/10/93
15 */
16
17 #include <hp300/stand/samachdep.h>
18 #include <hp300/stand/rominfo.h>
19 #include <sys/param.h>
20 #include <sys/reboot.h>
21
22 #include <hp/dev/device.h>
23 #include <hp/dev/grfreg.h>
24
25 /*
26 * Mapping of ROM MSUS types to BSD major device numbers
27 * WARNING: major numbers must match bdevsw indices in hp300/conf.c.
28 */
29 char rom2mdev[] = {
30 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0-13: none */
31 4, /* 14: SCSI disk */
32 0, /* 15: none */
33 2, /* 16: CS/80 device on HPIB */
34 2, /* 17: CS/80 device on HPIB */
35 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 18-31: none */
36 };
37
38 struct hp_hw sc_table[MAXCTLRS];
39 int cpuspeed;
40
41 extern int internalhpib;
42
43 #if 0
44 printrominfo()
45 {
46 struct rominfo *rp = (struct rominfo *)ROMADDR;
47
48 printf("boottype %x, name %s, lowram %x, sysflag %x\n",
49 rp->boottype, rp->name, rp->lowram, rp->sysflag&0xff);
50 printf("rambase %x, ndrives %x, sysflag2 %x, msus %x\n",
51 rp->rambase, rp->ndrives, rp->sysflag2&0xff, rp->msus);
52 }
53 #endif
54
configure()55 configure()
56 {
57 u_long msustobdev();
58
59 switch (machineid) {
60 case HP_320:
61 case HP_330:
62 case HP_340:
63 cpuspeed = MHZ_16;
64 break;
65 case HP_350:
66 case HP_360:
67 cpuspeed = MHZ_25;
68 break;
69 case HP_370:
70 cpuspeed = MHZ_33;
71 break;
72 case HP_375:
73 cpuspeed = MHZ_50;
74 break;
75 case HP_380:
76 cpuspeed = MHZ_25 * 2; /* XXX */
77 break;
78 case HP_433:
79 cpuspeed = MHZ_33 * 2; /* XXX */
80 break;
81 default: /* assume the fastest (largest delay value) */
82 cpuspeed = MHZ_50;
83 break;
84 }
85 find_devs();
86 cninit();
87 #if 0
88 printrominfo();
89 #endif
90 hpibinit();
91 scsiinit();
92 if ((bootdev & B_MAGICMASK) != B_DEVMAGIC)
93 bootdev = msustobdev();
94 }
95
96 /*
97 * Convert HP MSUS to a valid bootdev layout:
98 * TYPE comes from MSUS device type as mapped by rom2mdev
99 * PARTITION is set to 0 ('a')
100 * UNIT comes from MSUS unit (almost always 0)
101 * CONTROLLER comes from MSUS primary address
102 * ADAPTOR comes from SCSI/HPIB driver logical unit number
103 * (passed back via unused hw_pa field)
104 */
105 u_long
msustobdev()106 msustobdev()
107 {
108 struct rominfo *rp = (struct rominfo *) ROMADDR;
109 u_long bdev = 0;
110 register struct hp_hw *hw;
111 int sc;
112
113 sc = (rp->msus >> 8) & 0xFF;
114 for (hw = sc_table; hw < &sc_table[MAXCTLRS]; hw++)
115 if (hw->hw_sc == sc)
116 break;
117 bdev |= rom2mdev[(rp->msus >> 24) & 0x1F] << B_TYPESHIFT;
118 bdev |= 0 << B_PARTITIONSHIFT;
119 bdev |= ((rp->msus >> 16) & 0xFF) << B_UNITSHIFT;
120 bdev |= (rp->msus & 0xFF) << B_CONTROLLERSHIFT;
121 bdev |= (int)hw->hw_pa << B_ADAPTORSHIFT;
122 bdev |= B_DEVMAGIC;
123 #if 0
124 printf("msus %x -> bdev %x\n", rp->msus, bdev);
125 #endif
126 return (bdev);
127 }
128
sctoaddr(sc)129 sctoaddr(sc)
130 int sc;
131 {
132 if (sc == -1)
133 return(GRFIADDR);
134 if (sc == 7 && internalhpib)
135 return(internalhpib);
136 if (sc < 32)
137 return(DIOBASE + sc * DIOCSIZE);
138 if (sc >= 132)
139 return(DIOIIBASE + (sc - 132) * DIOIICSIZE);
140 return(sc);
141 }
142
143 /*
144 * Probe all DIO select codes (0 - 32), the internal display address,
145 * and DIO-II select codes (132 - 256).
146 *
147 * Note that we only care about displays, SCSIs and HP-IBs.
148 */
find_devs()149 find_devs()
150 {
151 short sc, sctop;
152 u_char *id_reg;
153 register caddr_t addr;
154 register struct hp_hw *hw;
155
156 hw = sc_table;
157 sctop = machineid == HP_320 ? 32 : 256;
158 for (sc = -1; sc < sctop; sc++) {
159 if (sc >= 32 && sc < 132)
160 continue;
161 addr = (caddr_t) sctoaddr(sc);
162 if (badaddr(addr))
163 continue;
164
165 id_reg = (u_char *) addr;
166 hw->hw_pa = 0; /* XXX used to pass back LUN from driver */
167 if (sc >= 132)
168 hw->hw_size = (id_reg[0x101] + 1) * 0x100000;
169 else
170 hw->hw_size = DIOCSIZE;
171 hw->hw_kva = addr;
172 hw->hw_id = id_reg[1];
173 hw->hw_sc = sc;
174
175 /*
176 * Not all internal HP-IBs respond rationally to id requests
177 * so we just go by the "internal HPIB" indicator in SYSFLAG.
178 */
179 if (sc == 7 && internalhpib) {
180 hw->hw_type = C_HPIB;
181 hw++;
182 continue;
183 }
184
185 switch (hw->hw_id) {
186 case 5: /* 98642A */
187 case 5+128: /* 98642A remote */
188 hw->hw_type = D_COMMDCM;
189 break;
190 case 8: /* 98625B */
191 case 128: /* 98624A */
192 hw->hw_type = C_HPIB;
193 break;
194 case 57: /* Displays */
195 hw->hw_type = D_BITMAP;
196 hw->hw_secid = id_reg[0x15];
197 switch (hw->hw_secid) {
198 case 4: /* renaissance */
199 case 8: /* davinci */
200 sc++; /* occupy 2 select codes */
201 break;
202 }
203 break;
204 case 9:
205 hw->hw_type = D_KEYBOARD;
206 break;
207 case 7:
208 case 7+32:
209 case 7+64:
210 case 7+96:
211 hw->hw_type = C_SCSI;
212 break;
213 default: /* who cares */
214 hw->hw_type = D_MISC;
215 break;
216 }
217 hw++;
218 }
219 }
220