1 /* $OpenBSD: sti_sgc.c,v 1.41 2022/03/13 08:04:38 mpi Exp $ */
2
3 /*
4 * Copyright (c) 2000-2003 Michael Shalayeff
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
20 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
24 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
25 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26 * THE POSSIBILITY OF SUCH DAMAGE.
27 */
28 /*
29 * These cards has to be known to work so far:
30 * - HPA1991AGrayscale rev 0.02 (705/35) (byte-wide)
31 * - HPA1991AC19 rev 0.02 (715/33) (byte-wide)
32 * - HPA208LC1280 rev 8.04 (712/80) just works
33 */
34
35 #include <sys/param.h>
36 #include <sys/systm.h>
37 #include <sys/device.h>
38
39 #include <machine/bus.h>
40 #include <machine/cpu.h>
41 #include <machine/iomod.h>
42 #include <machine/autoconf.h>
43
44 #include <dev/wscons/wsdisplayvar.h>
45 #include <dev/wscons/wsconsio.h>
46
47 #include <dev/ic/stireg.h>
48 #include <dev/ic/stivar.h>
49
50 #include <hppa/dev/cpudevs.h>
51
52 #define STI_ROMSIZE (sizeof(struct sti_dd) * 4)
53 #define STI_ID_FDDI 0x280b31af /* Medusa FDDI ROM id */
54
55 /* gecko optional graphics (these share the onboard's prom) */
56 const char sti_sgc_opt[] = { 0x17, 0x20, 0x30, 0x40, 0x70, 0xc0, 0xd0 };
57
58 extern struct cfdriver sti_cd;
59
60 int sti_sgc_probe(struct device *, void *, void *);
61 void sti_sgc_attach(struct device *, struct device *, void *);
62 paddr_t sti_sgc_getrom(int, struct confargs *);
63
64 const struct cfattach sti_gedoens_ca = {
65 sizeof(struct sti_softc), sti_sgc_probe, sti_sgc_attach
66 };
67
68 /*
69 * Locate STI ROM.
70 * On some machines it may not be part of the HPA space.
71 */
72 paddr_t
sti_sgc_getrom(int unit,struct confargs * ca)73 sti_sgc_getrom(int unit, struct confargs *ca)
74 {
75 paddr_t rom = PAGE0->pd_resv2[1];
76 int i;
77
78 if (unit) {
79 i = -1;
80 if (ca->ca_type.iodc_sv_model == HPPA_FIO_GSGC)
81 for (i = sizeof(sti_sgc_opt); i-- &&
82 sti_sgc_opt[i] != ca->ca_type.iodc_revision; )
83 ;
84 if (i < 0)
85 rom = 0;
86 }
87
88 if (rom < HPPA_IOBEGIN) {
89 if (ca->ca_naddrs > 0)
90 rom = ca->ca_addrs[0].addr;
91 else
92 rom = ca->ca_hpa;
93 }
94
95 return (rom);
96 }
97
98 int
sti_sgc_probe(struct device * parent,void * match,void * aux)99 sti_sgc_probe(struct device *parent, void *match, void *aux)
100 {
101 struct cfdata *cf = match;
102 struct confargs *ca = aux;
103 bus_space_handle_t romh;
104 paddr_t rom;
105 u_int32_t id;
106 u_char devtype;
107 int rv = 0, romunmapped = 0;
108
109 /* due to the graphic nature of this program do probe only one */
110 if (cf->cf_unit > sti_cd.cd_ndevs)
111 return (0);
112
113 if (ca->ca_type.iodc_type != HPPA_TYPE_FIO)
114 return (0);
115
116 /* these need further checking for the graphics id */
117 if (ca->ca_type.iodc_sv_model != HPPA_FIO_GSGC &&
118 ca->ca_type.iodc_sv_model != HPPA_FIO_SGC)
119 return 0;
120
121 rom = sti_sgc_getrom(cf->cf_unit, ca);
122 #ifdef STIDEBUG
123 printf ("sti: hpa=%lx, rom=%lx\n", ca->ca_hpa, rom);
124 #endif
125
126 /* if it does not map, probably part of the lasi space */
127 if ((rv = bus_space_map(ca->ca_iot, rom, STI_ROMSIZE, 0, &romh))) {
128 #ifdef STIDEBUG
129 printf ("sti: cannot map rom space (%d)\n", rv);
130 #endif
131 if ((rom & HPPA_IOBEGIN) == HPPA_IOBEGIN) {
132 romh = rom;
133 romunmapped++;
134 } else {
135 /* in this case nobody has no freaking idea */
136 return 0;
137 }
138 }
139
140 devtype = bus_space_read_1(ca->ca_iot, romh, 3);
141
142 #ifdef STIDEBUG
143 printf("sti: devtype=%d\n", devtype);
144 #endif
145 rv = 1;
146 switch (devtype) {
147 case STI_DEVTYPE4:
148 id = bus_space_read_4(ca->ca_iot, romh, 0x8);
149 break;
150 case STI_DEVTYPE1:
151 id = (bus_space_read_1(ca->ca_iot, romh, 0x10 + 3) << 24) |
152 (bus_space_read_1(ca->ca_iot, romh, 0x10 + 7) << 16) |
153 (bus_space_read_1(ca->ca_iot, romh, 0x10 + 11) << 8) |
154 (bus_space_read_1(ca->ca_iot, romh, 0x10 + 15));
155 break;
156 default:
157 #ifdef STIDEBUG
158 printf("sti: unknown type (%x)\n", devtype);
159 #endif
160 rv = 0;
161 }
162
163 if (rv &&
164 ca->ca_type.iodc_sv_model == HPPA_FIO_SGC && id == STI_ID_FDDI) {
165 #ifdef STIDEBUG
166 printf("sti: not a graphics device\n");
167 #endif
168 rv = 0;
169 }
170
171 if (ca->ca_naddrs >= sizeof(ca->ca_addrs)/sizeof(ca->ca_addrs[0])) {
172 printf("sti: address list overflow\n");
173 return (0);
174 }
175
176 ca->ca_addrs[ca->ca_naddrs].addr = rom;
177 ca->ca_addrs[ca->ca_naddrs].size = sti_rom_size(ca->ca_iot, romh);
178 ca->ca_naddrs++;
179
180 if (!romunmapped)
181 bus_space_unmap(ca->ca_iot, romh, STI_ROMSIZE);
182 return (rv);
183 }
184
185 void
sti_sgc_attach(struct device * parent,struct device * self,void * aux)186 sti_sgc_attach(struct device *parent, struct device *self, void *aux)
187 {
188 struct sti_softc *sc = (void *)self;
189 struct confargs *ca = aux;
190 bus_space_handle_t romh;
191 paddr_t rom;
192 u_int32_t romlen;
193 int rv;
194 int i;
195
196 /* we stashed rom addr/len into the last slot during probe */
197 rom = ca->ca_addrs[ca->ca_naddrs - 1].addr;
198 romlen = ca->ca_addrs[ca->ca_naddrs - 1].size;
199 if ((rv = bus_space_map(ca->ca_iot, rom, romlen, 0, &romh))) {
200 if ((rom & HPPA_IOBEGIN) == HPPA_IOBEGIN)
201 romh = rom;
202 else {
203 printf (": cannot map rom space (%d)\n", rv);
204 return;
205 }
206 }
207
208 sc->bases[0] = romh;
209 for (i = 1; i < STI_REGION_MAX; i++)
210 sc->bases[i] = ca->ca_hpa;
211
212 #ifdef HP7300LC_CPU
213 /* PCXL2: enable accel i/o for this space */
214 if (cpu_type == hpcxl2)
215 eaio_l2(0x8 >> (((ca->ca_hpa >> 25) & 3) - 2));
216 #endif
217
218 if (ca->ca_hpa == (hppa_hpa_t)PAGE0->mem_cons.pz_hpa)
219 sc->sc_flags |= STI_CONSOLE;
220 if (sti_attach_common(sc, ca->ca_iot, ca->ca_iot, romh,
221 STI_CODEBASE_PA) == 0)
222 startuphook_establish(sti_end_attach, sc);
223 }
224