1/* $OpenBSD: bwtwo.c,v 1.22 2022/10/16 01:22:40 jsg Exp $ */ 2 3/* 4 * Copyright (c) 2002 Jason L. Wright (jason@thought.net) 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 18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 19 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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 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 IN 25 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 * 28 * Effort sponsored in part by the Defense Advanced Research Projects 29 * Agency (DARPA) and Air Force Research Laboratory, Air Force 30 * Materiel Command, USAF, under agreement number F30602-01-2-0537. 31 * 32 */ 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/kernel.h> 37#include <sys/errno.h> 38#include <sys/device.h> 39#include <sys/ioctl.h> 40#include <sys/malloc.h> 41 42#include <machine/bus.h> 43#include <machine/intr.h> 44#include <machine/autoconf.h> 45#include <machine/openfirm.h> 46 47#include <dev/sbus/sbusvar.h> 48#include <dev/wscons/wsconsio.h> 49#include <dev/wscons/wsdisplayvar.h> 50#include <dev/rasops/rasops.h> 51#include <machine/fbvar.h> 52 53#define BWTWO_CTRL_OFFSET 0x400000 54#define BWTWO_CTRL_SIZE (sizeof(u_int32_t) * 8) 55#define BWTWO_VID_OFFSET 0x800000 56#define BWTWO_VID_SIZE (1024 * 1024) 57 58#define FBC_CTRL 0x10 /* control */ 59#define FBC_STAT 0x11 /* status */ 60#define FBC_START 0x12 /* cursor start */ 61#define FBC_END 0x13 /* cursor end */ 62#define FBC_VCTRL 0x14 /* 12 bytes of timing goo */ 63 64#define FBC_CTRL_IENAB 0x80 /* interrupt enable */ 65#define FBC_CTRL_VENAB 0x40 /* video enable */ 66#define FBC_CTRL_TIME 0x20 /* timing enable */ 67#define FBC_CTRL_CURS 0x10 /* cursor compare enable */ 68#define FBC_CTRL_XTAL 0x0c /* xtal select (0,1,2,test): */ 69#define FBC_CTRL_XTAL_0 0x00 /* 0 */ 70#define FBC_CTRL_XTAL_1 0x04 /* 0 */ 71#define FBC_CTRL_XTAL_2 0x08 /* 0 */ 72#define FBC_CTRL_XTAL_TEST 0x0c /* 0 */ 73#define FBC_CTRL_DIV 0x03 /* divisor (1,2,3,4): */ 74#define FBC_CTRL_DIV_1 0x00 /* / 1 */ 75#define FBC_CTRL_DIV_2 0x01 /* / 2 */ 76#define FBC_CTRL_DIV_3 0x02 /* / 3 */ 77#define FBC_CTRL_DIV_4 0x03 /* / 4 */ 78 79#define FBC_STAT_INTR 0x80 /* interrupt pending */ 80#define FBC_STAT_RES 0x70 /* monitor sense: */ 81#define FBC_STAT_RES_1024 0x10 /* 1024x768 */ 82#define FBC_STAT_RES_1280 0x40 /* 1280x1024 */ 83#define FBC_STAT_RES_1152 0x30 /* 1152x900 */ 84#define FBC_STAT_RES_1152A 0x40 /* 1152x900x76, A */ 85#define FBC_STAT_RES_1600 0x50 /* 1600x1200 */ 86#define FBC_STAT_RES_1152B 0x60 /* 1152x900x86, B */ 87#define FBC_STAT_ID 0x0f /* id mask: */ 88#define FBC_STAT_ID_COLOR 0x01 /* color */ 89#define FBC_STAT_ID_MONO 0x02 /* monochrome */ 90#define FBC_STAT_ID_MONOECL 0x03 /* monochrome, ecl */ 91 92#define FBC_READ(sc, reg) \ 93 bus_space_read_1((sc)->sc_bustag, (sc)->sc_ctrl_regs, (reg)) 94#define FBC_WRITE(sc, reg, val) \ 95 bus_space_write_1((sc)->sc_bustag, (sc)->sc_ctrl_regs, (reg), (val)) 96 97struct bwtwo_softc { 98 struct sunfb sc_sunfb; 99 bus_space_tag_t sc_bustag; 100 bus_addr_t sc_paddr; 101 bus_space_handle_t sc_ctrl_regs; 102 bus_space_handle_t sc_vid_regs; 103 int sc_nscreens; 104}; 105 106int bwtwo_ioctl(void *, u_long, caddr_t, int, struct proc *); 107paddr_t bwtwo_mmap(void *, off_t, int); 108int bwtwo_is_console(int); 109void bwtwo_burner(void *, u_int, u_int); 110 111struct wsdisplay_accessops bwtwo_accessops = { 112 .ioctl = bwtwo_ioctl, 113 .mmap = bwtwo_mmap, 114 .burn_screen = bwtwo_burner 115}; 116 117int bwtwomatch(struct device *, void *, void *); 118void bwtwoattach(struct device *, struct device *, void *); 119 120const struct cfattach bwtwo_ca = { 121 sizeof (struct bwtwo_softc), bwtwomatch, bwtwoattach 122}; 123 124struct cfdriver bwtwo_cd = { 125 NULL, "bwtwo", DV_DULL 126}; 127 128int 129bwtwomatch(struct device *parent, void *vcf, void *aux) 130{ 131 struct cfdata *cf = vcf; 132 struct sbus_attach_args *sa = aux; 133 134 return (strcmp(cf->cf_driver->cd_name, sa->sa_name) == 0); 135} 136 137void 138bwtwoattach(struct device *parent, struct device *self, void *aux) 139{ 140 struct bwtwo_softc *sc = (struct bwtwo_softc *)self; 141 struct sbus_attach_args *sa = aux; 142 int node, console; 143 const char *nam; 144 145 node = sa->sa_node; 146 sc->sc_bustag = sa->sa_bustag; 147 sc->sc_paddr = sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset); 148 149 fb_setsize(&sc->sc_sunfb, 1, 1152, 900, node, 0); 150 151 if (sa->sa_nreg != 1) { 152 printf(": expected %d registers, got %d\n", 1, sa->sa_nreg); 153 goto fail; 154 } 155 156 /* 157 * Map just CTRL and video RAM. 158 */ 159 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, 160 sa->sa_reg[0].sbr_offset + BWTWO_CTRL_OFFSET, 161 BWTWO_CTRL_SIZE, 0, 0, &sc->sc_ctrl_regs) != 0) { 162 printf(": cannot map ctrl registers\n"); 163 goto fail_ctrl; 164 } 165 166 if (sbus_bus_map(sa->sa_bustag, sa->sa_reg[0].sbr_slot, 167 sa->sa_reg[0].sbr_offset + BWTWO_VID_OFFSET, 168 sc->sc_sunfb.sf_fbsize, BUS_SPACE_MAP_LINEAR, 169 0, &sc->sc_vid_regs) != 0) { 170 printf(": cannot map vid registers\n"); 171 goto fail_vid; 172 } 173 174 nam = getpropstring(node, "model"); 175 if (*nam == '\0') 176 nam = sa->sa_name; 177 printf(": %s", nam); 178 179 console = bwtwo_is_console(node); 180 181 bwtwo_burner(sc, 1, 0); 182 183 printf(", %dx%d\n", sc->sc_sunfb.sf_width, sc->sc_sunfb.sf_height); 184 185 sc->sc_sunfb.sf_ro.ri_bits = (void *)bus_space_vaddr(sc->sc_bustag, 186 sc->sc_vid_regs); 187 sc->sc_sunfb.sf_ro.ri_hw = sc; 188 fbwscons_init(&sc->sc_sunfb, 0, console); 189 190 if (console) 191 fbwscons_console_init(&sc->sc_sunfb, -1); 192 193 fbwscons_attach(&sc->sc_sunfb, &bwtwo_accessops, console); 194 195 return; 196 197fail_vid: 198 bus_space_unmap(sa->sa_bustag, sc->sc_ctrl_regs, BWTWO_CTRL_SIZE); 199fail_ctrl: 200fail: 201; 202} 203 204int 205bwtwo_ioctl(void *v, u_long cmd, caddr_t data, int flags, struct proc *p) 206{ 207 struct bwtwo_softc *sc = v; 208 struct wsdisplay_fbinfo *wdf; 209 210 switch (cmd) { 211 case WSDISPLAYIO_GTYPE: 212 *(u_int *)data = WSDISPLAY_TYPE_SUNBW; 213 break; 214 case WSDISPLAYIO_GINFO: 215 wdf = (void *)data; 216 wdf->height = sc->sc_sunfb.sf_height; 217 wdf->width = sc->sc_sunfb.sf_width; 218 wdf->depth = sc->sc_sunfb.sf_depth; 219 wdf->stride = sc->sc_sunfb.sf_linebytes; 220 wdf->offset = 0; 221 wdf->cmsize = 0; 222 break; 223 case WSDISPLAYIO_LINEBYTES: 224 *(u_int *)data = sc->sc_sunfb.sf_linebytes; 225 break; 226 227 case WSDISPLAYIO_GETCMAP: 228 case WSDISPLAYIO_PUTCMAP: 229 break; 230 231 case WSDISPLAYIO_SVIDEO: 232 case WSDISPLAYIO_GVIDEO: 233 break; 234 235 case WSDISPLAYIO_GCURPOS: 236 case WSDISPLAYIO_SCURPOS: 237 case WSDISPLAYIO_GCURMAX: 238 case WSDISPLAYIO_GCURSOR: 239 case WSDISPLAYIO_SCURSOR: 240 default: 241 return -1; /* not supported yet */ 242 } 243 244 return (0); 245} 246 247paddr_t 248bwtwo_mmap(void *v, off_t offset, int prot) 249{ 250 struct bwtwo_softc *sc = v; 251 252 if (offset & PGOFSET) 253 return (-1); 254 255 if (offset >= 0 && offset < sc->sc_sunfb.sf_fbsize) 256 return (bus_space_mmap(sc->sc_bustag, sc->sc_paddr, 257 BWTWO_VID_OFFSET + offset, prot, BUS_SPACE_MAP_LINEAR)); 258 259 return (-1); 260} 261 262int 263bwtwo_is_console(int node) 264{ 265 extern int fbnode; 266 267 return (fbnode == node); 268} 269 270void 271bwtwo_burner(void *vsc, u_int on, u_int flags) 272{ 273 struct bwtwo_softc *sc = vsc; 274 int s; 275 u_int8_t fbc; 276 277 s = splhigh(); 278 fbc = FBC_READ(sc, FBC_CTRL); 279 if (on) 280 fbc |= FBC_CTRL_VENAB | FBC_CTRL_TIME; 281 else { 282 fbc &= ~FBC_CTRL_VENAB; 283 if (flags & WSDISPLAY_BURN_VBLANK) 284 fbc &= ~FBC_CTRL_TIME; 285 } 286 FBC_WRITE(sc, FBC_CTRL, fbc); 287 splx(s); 288} 289