cgtwo.c revision 1.35
1 /* $NetBSD: cgtwo.c,v 1.35 2001/08/05 18:07:53 jdolecek 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 <machine/autoconf.h> 66 67 #include <dev/sun/fbio.h> 68 #include <dev/sun/fbvar.h> 69 70 #include <dev/vme/vmevar.h> 71 72 #include <machine/eeprom.h> 73 #include <machine/conf.h> 74 #include <machine/cgtworeg.h> 75 76 77 /* per-display variables */ 78 struct cgtwo_softc { 79 struct device sc_dev; /* base device */ 80 struct fbdevice sc_fb; /* frame buffer device */ 81 vme_addr_t sc_paddr; 82 vme_chipset_tag_t sc_ct; 83 bus_space_tag_t sc_bt; 84 volatile struct cg2statusreg *sc_reg; /* CG2 control registers */ 85 volatile u_short *sc_cmap; 86 #define sc_redmap(sc) ((sc)->sc_cmap) 87 #define sc_greenmap(sc) ((sc)->sc_cmap + CG2_CMSIZE) 88 #define sc_bluemap(sc) ((sc)->sc_cmap + 2 * CG2_CMSIZE) 89 }; 90 91 /* autoconfiguration driver */ 92 static void cgtwoattach __P((struct device *, struct device *, void *)); 93 static int cgtwomatch __P((struct device *, struct cfdata *, void *)); 94 static void cgtwounblank __P((struct device *)); 95 int cgtwogetcmap __P((struct cgtwo_softc *, struct fbcmap *)); 96 int cgtwoputcmap __P((struct cgtwo_softc *, struct fbcmap *)); 97 98 /* cdevsw prototypes */ 99 cdev_decl(cgtwo); 100 101 struct cfattach cgtwo_ca = { 102 sizeof(struct cgtwo_softc), cgtwomatch, cgtwoattach 103 }; 104 105 extern struct cfdriver cgtwo_cd; 106 107 /* frame buffer generic driver */ 108 static struct fbdriver cgtwofbdriver = { 109 cgtwounblank, cgtwoopen, cgtwoclose, cgtwoioctl, cgtwopoll, cgtwommap 110 }; 111 112 /* 113 * Match a cgtwo. 114 */ 115 int 116 cgtwomatch(parent, cf, aux) 117 struct device *parent; 118 struct cfdata *cf; 119 void *aux; 120 { 121 struct vme_attach_args *va = aux; 122 vme_chipset_tag_t ct = va->va_vct; 123 vme_am_t mod; 124 125 /* 126 * Mask out invalid flags from the user. 127 */ 128 cf->cf_flags &= FB_USERMASK; 129 130 mod = 0x3d; /* VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA */ 131 if (vme_probe(ct, va->r[0].offset + CG2_CTLREG_OFF, 2, mod, VME_D16, 132 0, 0)) { 133 return (0); 134 } 135 136 return (1); 137 } 138 139 /* 140 * Attach a display. We need to notice if it is the console, too. 141 */ 142 void 143 cgtwoattach(parent, self, aux) 144 struct device *parent, *self; 145 void *aux; 146 { 147 struct vme_attach_args *va = aux; 148 vme_chipset_tag_t ct = va->va_vct; 149 bus_space_tag_t bt; 150 bus_space_handle_t bh; 151 vme_am_t mod; 152 vme_mapresc_t resc; 153 struct cgtwo_softc *sc = (struct cgtwo_softc *)self; 154 struct fbdevice *fb = &sc->sc_fb; 155 struct eeprom *eep = (struct eeprom *)eeprom_va; 156 int isconsole = 0; 157 char *nam = NULL; 158 159 sc->sc_ct = ct; 160 fb->fb_driver = &cgtwofbdriver; 161 fb->fb_device = &sc->sc_dev; 162 fb->fb_type.fb_type = FBTYPE_SUN2COLOR; 163 fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags; 164 165 fb->fb_type.fb_depth = 8; 166 fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); 167 168 fb->fb_type.fb_cmsize = 256; 169 fb->fb_type.fb_size = roundup(CG2_MAPPED_SIZE, NBPG); 170 printf(": %s, %d x %d", nam, 171 fb->fb_type.fb_width, fb->fb_type.fb_height); 172 173 /* 174 * When the ROM has mapped in a cgtwo display, the address 175 * maps only the video RAM, so in any case we have to map the 176 * registers ourselves. We only need the video RAM if we are 177 * going to print characters via rconsole. 178 */ 179 sc->sc_paddr = va->r[0].offset; 180 mod = 0x3d; /* VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA */ 181 182 if (vme_space_map(ct, sc->sc_paddr + CG2_ROPMEM_OFF + 183 offsetof(struct cg2fb, status.reg), 184 sizeof(struct cg2statusreg), mod, VME_D16, 0, 185 &bt, &bh, &resc) != 0) 186 panic("cgtwo: vme_map status"); 187 sc->sc_bt = bt; 188 sc->sc_reg = (volatile struct cg2statusreg *)bh; /* XXX */ 189 190 if (vme_space_map(ct, sc->sc_paddr + CG2_ROPMEM_OFF + 191 offsetof(struct cg2fb, redmap[0]), 192 3 * CG2_CMSIZE, mod, VME_D16, 0, 193 &bt, &bh, &resc) != 0) 194 panic("cgtwo: vme_map cmap"); 195 sc->sc_cmap = (volatile u_short *)bh; /* XXX */ 196 197 /* 198 * Assume this is the console if there's no eeprom info 199 * to be found. 200 */ 201 if (eep == NULL || eep->eeConsole == EE_CONS_COLOR) 202 isconsole = fb_is_console(0); 203 else 204 isconsole = 0; 205 206 if (isconsole) { 207 if (vme_space_map(ct, sc->sc_paddr + CG2_PIXMAP_OFF, 208 CG2_PIXMAP_SIZE, mod, VME_D16, 0, 209 &bt, &bh, &resc) != 0) 210 panic("cgtwo: vme_map pixels"); 211 212 fb->fb_pixels = (caddr_t)bh; /* XXX */ 213 printf(" (console)\n"); 214 #ifdef RASTERCONSOLE 215 fbrcons_init(fb); 216 #endif 217 } else 218 printf("\n"); 219 220 fb_attach(fb, isconsole); 221 } 222 223 int 224 cgtwoopen(dev, flags, mode, p) 225 dev_t dev; 226 int flags, mode; 227 struct proc *p; 228 { 229 int unit = minor(dev); 230 231 if (unit >= cgtwo_cd.cd_ndevs || cgtwo_cd.cd_devs[unit] == NULL) 232 return (ENXIO); 233 return (0); 234 } 235 236 int 237 cgtwoclose(dev, flags, mode, p) 238 dev_t dev; 239 int flags, mode; 240 struct proc *p; 241 { 242 243 return (0); 244 } 245 246 int 247 cgtwoioctl(dev, cmd, data, flags, p) 248 dev_t dev; 249 u_long cmd; 250 register caddr_t data; 251 int flags; 252 struct proc *p; 253 { 254 register struct cgtwo_softc *sc = cgtwo_cd.cd_devs[minor(dev)]; 255 register struct fbgattr *fba; 256 257 switch (cmd) { 258 259 case FBIOGTYPE: 260 *(struct fbtype *)data = sc->sc_fb.fb_type; 261 break; 262 263 case FBIOGATTR: 264 fba = (struct fbgattr *)data; 265 fba->real_type = sc->sc_fb.fb_type.fb_type; 266 fba->owner = 0; /* XXX ??? */ 267 fba->fbtype = sc->sc_fb.fb_type; 268 fba->sattr.flags = 0; 269 fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type; 270 fba->sattr.dev_specific[0] = -1; 271 fba->emu_types[0] = sc->sc_fb.fb_type.fb_type; 272 fba->emu_types[1] = -1; 273 break; 274 275 case FBIOGETCMAP: 276 return cgtwogetcmap(sc, (struct fbcmap *) data); 277 278 case FBIOPUTCMAP: 279 return cgtwoputcmap(sc, (struct fbcmap *) data); 280 281 case FBIOGVIDEO: 282 *(int *)data = sc->sc_reg->video_enab; 283 break; 284 285 case FBIOSVIDEO: 286 sc->sc_reg->video_enab = (*(int*)data) & 1; 287 break; 288 289 default: 290 return (ENOTTY); 291 } 292 return (0); 293 } 294 295 int 296 cgtwopoll(dev, events, p) 297 dev_t dev; 298 int events; 299 struct proc *p; 300 { 301 302 return (seltrue(dev, events, p)); 303 } 304 305 /* 306 * Undo the effect of an FBIOSVIDEO that turns the video off. 307 */ 308 static void 309 cgtwounblank(dev) 310 struct device *dev; 311 { 312 struct cgtwo_softc *sc = (struct cgtwo_softc *)dev; 313 sc->sc_reg->video_enab = 1; 314 } 315 316 /* 317 */ 318 int 319 cgtwogetcmap(sc, cmap) 320 register struct cgtwo_softc *sc; 321 register struct fbcmap *cmap; 322 { 323 u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE]; 324 int error, start, count, ecount; 325 register u_int i; 326 register volatile u_short *p; 327 328 start = cmap->index; 329 count = cmap->count; 330 ecount = start + count; 331 if (start >= CG2_CMSIZE || ecount > CG2_CMSIZE) 332 return (EINVAL); 333 334 /* XXX - Wait for retrace? */ 335 336 /* Copy hardware to local arrays. */ 337 p = &sc_redmap(sc)[start]; 338 for (i = start; i < ecount; i++) 339 red[i] = *p++; 340 p = &sc_greenmap(sc)[start]; 341 for (i = start; i < ecount; i++) 342 green[i] = *p++; 343 p = &sc_bluemap(sc)[start]; 344 for (i = start; i < ecount; i++) 345 blue[i] = *p++; 346 347 /* Copy local arrays to user space. */ 348 if ((error = copyout(red + start, cmap->red, count)) != 0) 349 return (error); 350 if ((error = copyout(green + start, cmap->green, count)) != 0) 351 return (error); 352 if ((error = copyout(blue + start, cmap->blue, count)) != 0) 353 return (error); 354 355 return (0); 356 } 357 358 /* 359 */ 360 int 361 cgtwoputcmap(sc, cmap) 362 register struct cgtwo_softc *sc; 363 register struct fbcmap *cmap; 364 { 365 u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE]; 366 int error; 367 u_int start, count, ecount; 368 register u_int i; 369 register volatile u_short *p; 370 371 start = cmap->index; 372 count = cmap->count; 373 ecount = start + count; 374 if (start >= CG2_CMSIZE || ecount > CG2_CMSIZE) 375 return (EINVAL); 376 377 /* Copy from user space to local arrays. */ 378 if ((error = copyin(cmap->red, red + start, count)) != 0) 379 return (error); 380 if ((error = copyin(cmap->green, green + start, count)) != 0) 381 return (error); 382 if ((error = copyin(cmap->blue, blue + start, count)) != 0) 383 return (error); 384 385 /* XXX - Wait for retrace? */ 386 387 /* Copy from local arrays to hardware. */ 388 p = &sc_redmap(sc)[start]; 389 for (i = start; i < ecount; i++) 390 *p++ = red[i]; 391 p = &sc_greenmap(sc)[start]; 392 for (i = start; i < ecount; i++) 393 *p++ = green[i]; 394 p = &sc_bluemap(sc)[start]; 395 for (i = start; i < ecount; i++) 396 *p++ = blue[i]; 397 398 return (0); 399 } 400 401 /* 402 * Return the address that would map the given device at the given 403 * offset, allowing for the given protection, or return -1 for error. 404 */ 405 paddr_t 406 cgtwommap(dev, off, prot) 407 dev_t dev; 408 off_t off; 409 int prot; 410 { 411 register struct cgtwo_softc *sc = cgtwo_cd.cd_devs[minor(dev)]; 412 vme_am_t mod; 413 bus_space_handle_t bh; 414 extern int sparc_vme_mmap_cookie __P((vme_addr_t, vme_am_t, 415 bus_space_handle_t *)); 416 417 if (off & PGOFSET) 418 panic("cgtwommap"); 419 420 if (off >= sc->sc_fb.fb_type.fb_size) 421 return (-1); 422 423 /* Apparently, the pixels are in 32-bit data space */ 424 mod = 0x3d; /* VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA */ 425 426 if (sparc_vme_mmap_cookie(sc->sc_paddr + off, mod, &bh) != 0) 427 panic("cgtwommap"); 428 429 return ((paddr_t)bh); 430 } 431
Indexes created Thu Sep 25 08:09:54 GMT 2025