cgtwo.c revision 1.46
1 /* $NetBSD: cgtwo.c,v 1.46 2003/07/15 00:04:53 lukem 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/cdefs.h> 56 __KERNEL_RCSID(0, "$NetBSD: cgtwo.c,v 1.46 2003/07/15 00:04:53 lukem Exp $"); 57 58 #include <sys/param.h> 59 #include <sys/systm.h> 60 #include <sys/buf.h> 61 #include <sys/device.h> 62 #include <sys/ioctl.h> 63 #include <sys/malloc.h> 64 #include <sys/mman.h> 65 #include <sys/tty.h> 66 #include <sys/conf.h> 67 68 #include <uvm/uvm_extern.h> 69 70 #include <machine/autoconf.h> 71 72 #include <dev/sun/fbio.h> 73 #include <dev/sun/fbvar.h> 74 75 #include <dev/vme/vmevar.h> 76 77 #include <machine/eeprom.h> 78 #include <machine/cgtworeg.h> 79 80 81 /* per-display variables */ 82 struct cgtwo_softc { 83 struct device sc_dev; /* base device */ 84 struct fbdevice sc_fb; /* frame buffer device */ 85 vme_addr_t sc_paddr; 86 vme_chipset_tag_t sc_ct; 87 bus_space_tag_t sc_bt; 88 volatile struct cg2statusreg *sc_reg; /* CG2 control registers */ 89 volatile u_short *sc_cmap; 90 #define sc_redmap(sc) ((sc)->sc_cmap) 91 #define sc_greenmap(sc) ((sc)->sc_cmap + CG2_CMSIZE) 92 #define sc_bluemap(sc) ((sc)->sc_cmap + 2 * CG2_CMSIZE) 93 }; 94 95 /* autoconfiguration driver */ 96 static void cgtwoattach __P((struct device *, struct device *, void *)); 97 static int cgtwomatch __P((struct device *, struct cfdata *, void *)); 98 static void cgtwounblank __P((struct device *)); 99 int cgtwogetcmap __P((struct cgtwo_softc *, struct fbcmap *)); 100 int cgtwoputcmap __P((struct cgtwo_softc *, struct fbcmap *)); 101 102 CFATTACH_DECL(cgtwo, sizeof(struct cgtwo_softc), 103 cgtwomatch, cgtwoattach, NULL, NULL); 104 105 extern struct cfdriver cgtwo_cd; 106 107 dev_type_open(cgtwoopen); 108 dev_type_ioctl(cgtwoioctl); 109 dev_type_mmap(cgtwommap); 110 111 const struct cdevsw cgtwo_cdevsw = { 112 cgtwoopen, nullclose, noread, nowrite, cgtwoioctl, 113 nostop, notty, nopoll, cgtwommap, nokqfilter, 114 }; 115 116 /* frame buffer generic driver */ 117 static struct fbdriver cgtwofbdriver = { 118 cgtwounblank, cgtwoopen, nullclose, cgtwoioctl, nopoll, cgtwommap, 119 nokqfilter 120 }; 121 122 /* 123 * Match a cgtwo. 124 */ 125 int 126 cgtwomatch(parent, cf, aux) 127 struct device *parent; 128 struct cfdata *cf; 129 void *aux; 130 { 131 struct vme_attach_args *va = aux; 132 vme_chipset_tag_t ct = va->va_vct; 133 vme_am_t mod; 134 135 /* 136 * Mask out invalid flags from the user. 137 */ 138 cf->cf_flags &= FB_USERMASK; 139 140 mod = 0x3d; /* VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA */ 141 if (vme_probe(ct, va->r[0].offset + CG2_CTLREG_OFF, 2, mod, VME_D16, 142 0, 0)) { 143 return (0); 144 } 145 146 return (1); 147 } 148 149 /* 150 * Attach a display. We need to notice if it is the console, too. 151 */ 152 void 153 cgtwoattach(parent, self, aux) 154 struct device *parent, *self; 155 void *aux; 156 { 157 struct vme_attach_args *va = aux; 158 vme_chipset_tag_t ct = va->va_vct; 159 bus_space_tag_t bt; 160 bus_space_handle_t bh; 161 vme_am_t mod; 162 vme_mapresc_t resc; 163 struct cgtwo_softc *sc = (struct cgtwo_softc *)self; 164 struct fbdevice *fb = &sc->sc_fb; 165 struct eeprom *eep = (struct eeprom *)eeprom_va; 166 int isconsole = 0; 167 168 sc->sc_ct = ct; 169 fb->fb_driver = &cgtwofbdriver; 170 fb->fb_device = &sc->sc_dev; 171 fb->fb_type.fb_type = FBTYPE_SUN2COLOR; 172 fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags; 173 174 fb->fb_type.fb_depth = 8; 175 fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); 176 177 fb->fb_type.fb_cmsize = 256; 178 fb->fb_type.fb_size = roundup(CG2_MAPPED_SIZE, PAGE_SIZE); 179 printf(": cgtwo, %d x %d", 180 fb->fb_type.fb_width, fb->fb_type.fb_height); 181 182 /* 183 * When the ROM has mapped in a cgtwo display, the address 184 * maps only the video RAM, so in any case we have to map the 185 * registers ourselves. We only need the video RAM if we are 186 * going to print characters via rconsole. 187 */ 188 sc->sc_paddr = va->r[0].offset; 189 mod = 0x3d; /* VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA */ 190 191 if (vme_space_map(ct, sc->sc_paddr + CG2_ROPMEM_OFF + 192 offsetof(struct cg2fb, status.reg), 193 sizeof(struct cg2statusreg), mod, VME_D16, 0, 194 &bt, &bh, &resc) != 0) 195 panic("cgtwo: vme_map status"); 196 sc->sc_bt = bt; 197 sc->sc_reg = (volatile struct cg2statusreg *)bh; /* XXX */ 198 199 if (vme_space_map(ct, sc->sc_paddr + CG2_ROPMEM_OFF + 200 offsetof(struct cg2fb, redmap[0]), 201 3 * CG2_CMSIZE, mod, VME_D16, 0, 202 &bt, &bh, &resc) != 0) 203 panic("cgtwo: vme_map cmap"); 204 sc->sc_cmap = (volatile u_short *)bh; /* XXX */ 205 206 /* 207 * Assume this is the console if there's no eeprom info 208 * to be found. 209 */ 210 if (eep == NULL || eep->eeConsole == EE_CONS_COLOR) 211 isconsole = fb_is_console(0); 212 else 213 isconsole = 0; 214 215 if (isconsole) { 216 if (vme_space_map(ct, sc->sc_paddr + CG2_PIXMAP_OFF, 217 CG2_PIXMAP_SIZE, mod, VME_D16, 0, 218 &bt, &bh, &resc) != 0) 219 panic("cgtwo: vme_map pixels"); 220 221 fb->fb_pixels = (caddr_t)bh; /* XXX */ 222 printf(" (console)\n"); 223 #ifdef RASTERCONSOLE 224 fbrcons_init(fb); 225 #endif 226 } else 227 printf("\n"); 228 229 fb_attach(fb, isconsole); 230 } 231 232 int 233 cgtwoopen(dev, flags, mode, p) 234 dev_t dev; 235 int flags, mode; 236 struct proc *p; 237 { 238 int unit = minor(dev); 239 240 if (unit >= cgtwo_cd.cd_ndevs || cgtwo_cd.cd_devs[unit] == NULL) 241 return (ENXIO); 242 return (0); 243 } 244 245 int 246 cgtwoioctl(dev, cmd, data, flags, p) 247 dev_t dev; 248 u_long cmd; 249 register caddr_t data; 250 int flags; 251 struct proc *p; 252 { 253 register struct cgtwo_softc *sc = cgtwo_cd.cd_devs[minor(dev)]; 254 register struct fbgattr *fba; 255 256 switch (cmd) { 257 258 case FBIOGTYPE: 259 *(struct fbtype *)data = sc->sc_fb.fb_type; 260 break; 261 262 case FBIOGATTR: 263 fba = (struct fbgattr *)data; 264 fba->real_type = sc->sc_fb.fb_type.fb_type; 265 fba->owner = 0; /* XXX ??? */ 266 fba->fbtype = sc->sc_fb.fb_type; 267 fba->sattr.flags = 0; 268 fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type; 269 fba->sattr.dev_specific[0] = -1; 270 fba->emu_types[0] = sc->sc_fb.fb_type.fb_type; 271 fba->emu_types[1] = -1; 272 break; 273 274 case FBIOGETCMAP: 275 return cgtwogetcmap(sc, (struct fbcmap *) data); 276 277 case FBIOPUTCMAP: 278 return cgtwoputcmap(sc, (struct fbcmap *) data); 279 280 case FBIOGVIDEO: 281 *(int *)data = sc->sc_reg->video_enab; 282 break; 283 284 case FBIOSVIDEO: 285 sc->sc_reg->video_enab = (*(int*)data) & 1; 286 break; 287 288 default: 289 return (ENOTTY); 290 } 291 return (0); 292 } 293 294 /* 295 * Undo the effect of an FBIOSVIDEO that turns the video off. 296 */ 297 static void 298 cgtwounblank(dev) 299 struct device *dev; 300 { 301 struct cgtwo_softc *sc = (struct cgtwo_softc *)dev; 302 sc->sc_reg->video_enab = 1; 303 } 304 305 /* 306 */ 307 int 308 cgtwogetcmap(sc, cmap) 309 register struct cgtwo_softc *sc; 310 register struct fbcmap *cmap; 311 { 312 u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE]; 313 int error, start, count, ecount; 314 register u_int i; 315 register volatile u_short *p; 316 317 start = cmap->index; 318 count = cmap->count; 319 ecount = start + count; 320 if (start >= CG2_CMSIZE || count > CG2_CMSIZE - start) 321 return (EINVAL); 322 323 /* XXX - Wait for retrace? */ 324 325 /* Copy hardware to local arrays. */ 326 p = &sc_redmap(sc)[start]; 327 for (i = start; i < ecount; i++) 328 red[i] = *p++; 329 p = &sc_greenmap(sc)[start]; 330 for (i = start; i < ecount; i++) 331 green[i] = *p++; 332 p = &sc_bluemap(sc)[start]; 333 for (i = start; i < ecount; i++) 334 blue[i] = *p++; 335 336 /* Copy local arrays to user space. */ 337 if ((error = copyout(red + start, cmap->red, count)) != 0) 338 return (error); 339 if ((error = copyout(green + start, cmap->green, count)) != 0) 340 return (error); 341 if ((error = copyout(blue + start, cmap->blue, count)) != 0) 342 return (error); 343 344 return (0); 345 } 346 347 /* 348 */ 349 int 350 cgtwoputcmap(sc, cmap) 351 register struct cgtwo_softc *sc; 352 register struct fbcmap *cmap; 353 { 354 u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE]; 355 int error; 356 u_int start, count, ecount; 357 register u_int i; 358 register volatile u_short *p; 359 360 start = cmap->index; 361 count = cmap->count; 362 ecount = start + count; 363 if (start >= CG2_CMSIZE || count > CG2_CMSIZE - start) 364 return (EINVAL); 365 366 /* Copy from user space to local arrays. */ 367 if ((error = copyin(cmap->red, red + start, count)) != 0) 368 return (error); 369 if ((error = copyin(cmap->green, green + start, count)) != 0) 370 return (error); 371 if ((error = copyin(cmap->blue, blue + start, count)) != 0) 372 return (error); 373 374 /* XXX - Wait for retrace? */ 375 376 /* Copy from local arrays to hardware. */ 377 p = &sc_redmap(sc)[start]; 378 for (i = start; i < ecount; i++) 379 *p++ = red[i]; 380 p = &sc_greenmap(sc)[start]; 381 for (i = start; i < ecount; i++) 382 *p++ = green[i]; 383 p = &sc_bluemap(sc)[start]; 384 for (i = start; i < ecount; i++) 385 *p++ = blue[i]; 386 387 return (0); 388 } 389 390 /* 391 * Return the address that would map the given device at the given 392 * offset, allowing for the given protection, or return -1 for error. 393 */ 394 paddr_t 395 cgtwommap(dev, off, prot) 396 dev_t dev; 397 off_t off; 398 int prot; 399 { 400 register struct cgtwo_softc *sc = cgtwo_cd.cd_devs[minor(dev)]; 401 vme_am_t mod; 402 bus_space_handle_t bh; 403 extern int sparc_vme_mmap_cookie __P((vme_addr_t, vme_am_t, 404 bus_space_handle_t *)); 405 406 if (off & PGOFSET) 407 panic("cgtwommap"); 408 409 if (off >= sc->sc_fb.fb_type.fb_size) 410 return (-1); 411 412 /* Apparently, the pixels are in 32-bit data space */ 413 mod = 0x3d; /* VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA */ 414 415 if (sparc_vme_mmap_cookie(sc->sc_paddr + off, mod, &bh) != 0) 416 panic("cgtwommap"); 417 418 return ((paddr_t)bh); 419 } 420
Indexes created Thu Oct 02 10:09:58 GMT 2025