cgtwo.c revision 1.45
1 /* $NetBSD: cgtwo.c,v 1.45 2003/06/29 22:28:55 fvdl Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. All advertising materials mentioning features or use of this software 25 * must display the following acknowledgement: 26 * This product includes software developed by the University of 27 * California, Berkeley and its contributors. 28 * 4. Neither the name of the University nor the names of its contributors 29 * may be used to endorse or promote products derived from this software 30 * without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 * 44 * from: @(#)cgthree.c 8.2 (Berkeley) 10/30/93 45 */ 46 47 /* 48 * color display (cgtwo) driver. 49 * 50 * Does not handle interrupts, even though they can occur. 51 * 52 * XXX should defer colormap updates to vertical retrace interrupts 53 */ 54 55 #include <sys/param.h> 56 #include <sys/systm.h> 57 #include <sys/buf.h> 58 #include <sys/device.h> 59 #include <sys/ioctl.h> 60 #include <sys/malloc.h> 61 #include <sys/mman.h> 62 #include <sys/tty.h> 63 #include <sys/conf.h> 64 65 #include <uvm/uvm_extern.h> 66 67 #include <machine/autoconf.h> 68 69 #include <dev/sun/fbio.h> 70 #include <dev/sun/fbvar.h> 71 72 #include <dev/vme/vmevar.h> 73 74 #include <machine/eeprom.h> 75 #include <machine/cgtworeg.h> 76 77 78 /* per-display variables */ 79 struct cgtwo_softc { 80 struct device sc_dev; /* base device */ 81 struct fbdevice sc_fb; /* frame buffer device */ 82 vme_addr_t sc_paddr; 83 vme_chipset_tag_t sc_ct; 84 bus_space_tag_t sc_bt; 85 volatile struct cg2statusreg *sc_reg; /* CG2 control registers */ 86 volatile u_short *sc_cmap; 87 #define sc_redmap(sc) ((sc)->sc_cmap) 88 #define sc_greenmap(sc) ((sc)->sc_cmap + CG2_CMSIZE) 89 #define sc_bluemap(sc) ((sc)->sc_cmap + 2 * CG2_CMSIZE) 90 }; 91 92 /* autoconfiguration driver */ 93 static void cgtwoattach __P((struct device *, struct device *, void *)); 94 static int cgtwomatch __P((struct device *, struct cfdata *, void *)); 95 static void cgtwounblank __P((struct device *)); 96 int cgtwogetcmap __P((struct cgtwo_softc *, struct fbcmap *)); 97 int cgtwoputcmap __P((struct cgtwo_softc *, struct fbcmap *)); 98 99 CFATTACH_DECL(cgtwo, sizeof(struct cgtwo_softc), 100 cgtwomatch, cgtwoattach, NULL, NULL); 101 102 extern struct cfdriver cgtwo_cd; 103 104 dev_type_open(cgtwoopen); 105 dev_type_ioctl(cgtwoioctl); 106 dev_type_mmap(cgtwommap); 107 108 const struct cdevsw cgtwo_cdevsw = { 109 cgtwoopen, nullclose, noread, nowrite, cgtwoioctl, 110 nostop, notty, nopoll, cgtwommap, nokqfilter, 111 }; 112 113 /* frame buffer generic driver */ 114 static struct fbdriver cgtwofbdriver = { 115 cgtwounblank, cgtwoopen, nullclose, cgtwoioctl, nopoll, cgtwommap, 116 nokqfilter 117 }; 118 119 /* 120 * Match a cgtwo. 121 */ 122 int 123 cgtwomatch(parent, cf, aux) 124 struct device *parent; 125 struct cfdata *cf; 126 void *aux; 127 { 128 struct vme_attach_args *va = aux; 129 vme_chipset_tag_t ct = va->va_vct; 130 vme_am_t mod; 131 132 /* 133 * Mask out invalid flags from the user. 134 */ 135 cf->cf_flags &= FB_USERMASK; 136 137 mod = 0x3d; /* VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA */ 138 if (vme_probe(ct, va->r[0].offset + CG2_CTLREG_OFF, 2, mod, VME_D16, 139 0, 0)) { 140 return (0); 141 } 142 143 return (1); 144 } 145 146 /* 147 * Attach a display. We need to notice if it is the console, too. 148 */ 149 void 150 cgtwoattach(parent, self, aux) 151 struct device *parent, *self; 152 void *aux; 153 { 154 struct vme_attach_args *va = aux; 155 vme_chipset_tag_t ct = va->va_vct; 156 bus_space_tag_t bt; 157 bus_space_handle_t bh; 158 vme_am_t mod; 159 vme_mapresc_t resc; 160 struct cgtwo_softc *sc = (struct cgtwo_softc *)self; 161 struct fbdevice *fb = &sc->sc_fb; 162 struct eeprom *eep = (struct eeprom *)eeprom_va; 163 int isconsole = 0; 164 165 sc->sc_ct = ct; 166 fb->fb_driver = &cgtwofbdriver; 167 fb->fb_device = &sc->sc_dev; 168 fb->fb_type.fb_type = FBTYPE_SUN2COLOR; 169 fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags; 170 171 fb->fb_type.fb_depth = 8; 172 fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); 173 174 fb->fb_type.fb_cmsize = 256; 175 fb->fb_type.fb_size = roundup(CG2_MAPPED_SIZE, PAGE_SIZE); 176 printf(": cgtwo, %d x %d", 177 fb->fb_type.fb_width, fb->fb_type.fb_height); 178 179 /* 180 * When the ROM has mapped in a cgtwo display, the address 181 * maps only the video RAM, so in any case we have to map the 182 * registers ourselves. We only need the video RAM if we are 183 * going to print characters via rconsole. 184 */ 185 sc->sc_paddr = va->r[0].offset; 186 mod = 0x3d; /* VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA */ 187 188 if (vme_space_map(ct, sc->sc_paddr + CG2_ROPMEM_OFF + 189 offsetof(struct cg2fb, status.reg), 190 sizeof(struct cg2statusreg), mod, VME_D16, 0, 191 &bt, &bh, &resc) != 0) 192 panic("cgtwo: vme_map status"); 193 sc->sc_bt = bt; 194 sc->sc_reg = (volatile struct cg2statusreg *)bh; /* XXX */ 195 196 if (vme_space_map(ct, sc->sc_paddr + CG2_ROPMEM_OFF + 197 offsetof(struct cg2fb, redmap[0]), 198 3 * CG2_CMSIZE, mod, VME_D16, 0, 199 &bt, &bh, &resc) != 0) 200 panic("cgtwo: vme_map cmap"); 201 sc->sc_cmap = (volatile u_short *)bh; /* XXX */ 202 203 /* 204 * Assume this is the console if there's no eeprom info 205 * to be found. 206 */ 207 if (eep == NULL || eep->eeConsole == EE_CONS_COLOR) 208 isconsole = fb_is_console(0); 209 else 210 isconsole = 0; 211 212 if (isconsole) { 213 if (vme_space_map(ct, sc->sc_paddr + CG2_PIXMAP_OFF, 214 CG2_PIXMAP_SIZE, mod, VME_D16, 0, 215 &bt, &bh, &resc) != 0) 216 panic("cgtwo: vme_map pixels"); 217 218 fb->fb_pixels = (caddr_t)bh; /* XXX */ 219 printf(" (console)\n"); 220 #ifdef RASTERCONSOLE 221 fbrcons_init(fb); 222 #endif 223 } else 224 printf("\n"); 225 226 fb_attach(fb, isconsole); 227 } 228 229 int 230 cgtwoopen(dev, flags, mode, p) 231 dev_t dev; 232 int flags, mode; 233 struct proc *p; 234 { 235 int unit = minor(dev); 236 237 if (unit >= cgtwo_cd.cd_ndevs || cgtwo_cd.cd_devs[unit] == NULL) 238 return (ENXIO); 239 return (0); 240 } 241 242 int 243 cgtwoioctl(dev, cmd, data, flags, p) 244 dev_t dev; 245 u_long cmd; 246 register caddr_t data; 247 int flags; 248 struct proc *p; 249 { 250 register struct cgtwo_softc *sc = cgtwo_cd.cd_devs[minor(dev)]; 251 register struct fbgattr *fba; 252 253 switch (cmd) { 254 255 case FBIOGTYPE: 256 *(struct fbtype *)data = sc->sc_fb.fb_type; 257 break; 258 259 case FBIOGATTR: 260 fba = (struct fbgattr *)data; 261 fba->real_type = sc->sc_fb.fb_type.fb_type; 262 fba->owner = 0; /* XXX ??? */ 263 fba->fbtype = sc->sc_fb.fb_type; 264 fba->sattr.flags = 0; 265 fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type; 266 fba->sattr.dev_specific[0] = -1; 267 fba->emu_types[0] = sc->sc_fb.fb_type.fb_type; 268 fba->emu_types[1] = -1; 269 break; 270 271 case FBIOGETCMAP: 272 return cgtwogetcmap(sc, (struct fbcmap *) data); 273 274 case FBIOPUTCMAP: 275 return cgtwoputcmap(sc, (struct fbcmap *) data); 276 277 case FBIOGVIDEO: 278 *(int *)data = sc->sc_reg->video_enab; 279 break; 280 281 case FBIOSVIDEO: 282 sc->sc_reg->video_enab = (*(int*)data) & 1; 283 break; 284 285 default: 286 return (ENOTTY); 287 } 288 return (0); 289 } 290 291 /* 292 * Undo the effect of an FBIOSVIDEO that turns the video off. 293 */ 294 static void 295 cgtwounblank(dev) 296 struct device *dev; 297 { 298 struct cgtwo_softc *sc = (struct cgtwo_softc *)dev; 299 sc->sc_reg->video_enab = 1; 300 } 301 302 /* 303 */ 304 int 305 cgtwogetcmap(sc, cmap) 306 register struct cgtwo_softc *sc; 307 register struct fbcmap *cmap; 308 { 309 u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE]; 310 int error, start, count, ecount; 311 register u_int i; 312 register volatile u_short *p; 313 314 start = cmap->index; 315 count = cmap->count; 316 ecount = start + count; 317 if (start >= CG2_CMSIZE || count > CG2_CMSIZE - start) 318 return (EINVAL); 319 320 /* XXX - Wait for retrace? */ 321 322 /* Copy hardware to local arrays. */ 323 p = &sc_redmap(sc)[start]; 324 for (i = start; i < ecount; i++) 325 red[i] = *p++; 326 p = &sc_greenmap(sc)[start]; 327 for (i = start; i < ecount; i++) 328 green[i] = *p++; 329 p = &sc_bluemap(sc)[start]; 330 for (i = start; i < ecount; i++) 331 blue[i] = *p++; 332 333 /* Copy local arrays to user space. */ 334 if ((error = copyout(red + start, cmap->red, count)) != 0) 335 return (error); 336 if ((error = copyout(green + start, cmap->green, count)) != 0) 337 return (error); 338 if ((error = copyout(blue + start, cmap->blue, count)) != 0) 339 return (error); 340 341 return (0); 342 } 343 344 /* 345 */ 346 int 347 cgtwoputcmap(sc, cmap) 348 register struct cgtwo_softc *sc; 349 register struct fbcmap *cmap; 350 { 351 u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE]; 352 int error; 353 u_int start, count, ecount; 354 register u_int i; 355 register volatile u_short *p; 356 357 start = cmap->index; 358 count = cmap->count; 359 ecount = start + count; 360 if (start >= CG2_CMSIZE || count > CG2_CMSIZE - start) 361 return (EINVAL); 362 363 /* Copy from user space to local arrays. */ 364 if ((error = copyin(cmap->red, red + start, count)) != 0) 365 return (error); 366 if ((error = copyin(cmap->green, green + start, count)) != 0) 367 return (error); 368 if ((error = copyin(cmap->blue, blue + start, count)) != 0) 369 return (error); 370 371 /* XXX - Wait for retrace? */ 372 373 /* Copy from local arrays to hardware. */ 374 p = &sc_redmap(sc)[start]; 375 for (i = start; i < ecount; i++) 376 *p++ = red[i]; 377 p = &sc_greenmap(sc)[start]; 378 for (i = start; i < ecount; i++) 379 *p++ = green[i]; 380 p = &sc_bluemap(sc)[start]; 381 for (i = start; i < ecount; i++) 382 *p++ = blue[i]; 383 384 return (0); 385 } 386 387 /* 388 * Return the address that would map the given device at the given 389 * offset, allowing for the given protection, or return -1 for error. 390 */ 391 paddr_t 392 cgtwommap(dev, off, prot) 393 dev_t dev; 394 off_t off; 395 int prot; 396 { 397 register struct cgtwo_softc *sc = cgtwo_cd.cd_devs[minor(dev)]; 398 vme_am_t mod; 399 bus_space_handle_t bh; 400 extern int sparc_vme_mmap_cookie __P((vme_addr_t, vme_am_t, 401 bus_space_handle_t *)); 402 403 if (off & PGOFSET) 404 panic("cgtwommap"); 405 406 if (off >= sc->sc_fb.fb_type.fb_size) 407 return (-1); 408 409 /* Apparently, the pixels are in 32-bit data space */ 410 mod = 0x3d; /* VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA */ 411 412 if (sparc_vme_mmap_cookie(sc->sc_paddr + off, mod, &bh) != 0) 413 panic("cgtwommap"); 414 415 return ((paddr_t)bh); 416 } 417
Indexes created Tue Sep 23 14:10:03 GMT 2025