cgtwo.c revision 1.48
1 /* $NetBSD: cgtwo.c,v 1.48 2003/08/24 17:32:00 uwe 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. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: @(#)cgthree.c 8.2 (Berkeley) 10/30/93 41 */ 42 43 /* 44 * color display (cgtwo) driver. 45 * 46 * Does not handle interrupts, even though they can occur. 47 * 48 * XXX should defer colormap updates to vertical retrace interrupts 49 */ 50 51 #include <sys/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: cgtwo.c,v 1.48 2003/08/24 17:32:00 uwe Exp $"); 53 54 #include "opt_rcons.h" 55 56 #include <sys/param.h> 57 #include <sys/systm.h> 58 #include <sys/buf.h> 59 #include <sys/device.h> 60 #include <sys/ioctl.h> 61 #include <sys/malloc.h> 62 #include <sys/mman.h> 63 #include <sys/tty.h> 64 #include <sys/conf.h> 65 66 #include <uvm/uvm_extern.h> 67 68 #include <machine/autoconf.h> 69 70 #include <dev/sun/fbio.h> 71 #include <dev/sun/fbvar.h> 72 73 #include <dev/vme/vmevar.h> 74 75 #include <machine/eeprom.h> 76 #include <machine/cgtworeg.h> 77 78 79 /* per-display variables */ 80 struct cgtwo_softc { 81 struct device sc_dev; /* base device */ 82 struct fbdevice sc_fb; /* frame buffer device */ 83 vme_addr_t sc_paddr; 84 vme_chipset_tag_t sc_ct; 85 bus_space_tag_t sc_bt; 86 volatile struct cg2statusreg *sc_reg; /* CG2 control registers */ 87 volatile u_short *sc_cmap; 88 #define sc_redmap(sc) ((sc)->sc_cmap) 89 #define sc_greenmap(sc) ((sc)->sc_cmap + CG2_CMSIZE) 90 #define sc_bluemap(sc) ((sc)->sc_cmap + 2 * CG2_CMSIZE) 91 }; 92 93 /* autoconfiguration driver */ 94 static void cgtwoattach __P((struct device *, struct device *, void *)); 95 static int cgtwomatch __P((struct device *, struct cfdata *, void *)); 96 static void cgtwounblank __P((struct device *)); 97 int cgtwogetcmap __P((struct cgtwo_softc *, struct fbcmap *)); 98 int cgtwoputcmap __P((struct cgtwo_softc *, struct fbcmap *)); 99 100 CFATTACH_DECL(cgtwo, sizeof(struct cgtwo_softc), 101 cgtwomatch, cgtwoattach, NULL, NULL); 102 103 extern struct cfdriver cgtwo_cd; 104 105 dev_type_open(cgtwoopen); 106 dev_type_ioctl(cgtwoioctl); 107 dev_type_mmap(cgtwommap); 108 109 const struct cdevsw cgtwo_cdevsw = { 110 cgtwoopen, nullclose, noread, nowrite, cgtwoioctl, 111 nostop, notty, nopoll, cgtwommap, nokqfilter, 112 }; 113 114 /* frame buffer generic driver */ 115 static struct fbdriver cgtwofbdriver = { 116 cgtwounblank, cgtwoopen, nullclose, cgtwoioctl, nopoll, cgtwommap, 117 nokqfilter 118 }; 119 120 /* 121 * Match a cgtwo. 122 */ 123 int 124 cgtwomatch(parent, cf, aux) 125 struct device *parent; 126 struct cfdata *cf; 127 void *aux; 128 { 129 struct vme_attach_args *va = aux; 130 vme_chipset_tag_t ct = va->va_vct; 131 vme_am_t mod; 132 133 /* 134 * Mask out invalid flags from the user. 135 */ 136 cf->cf_flags &= FB_USERMASK; 137 138 mod = 0x3d; /* VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA */ 139 if (vme_probe(ct, va->r[0].offset + CG2_CTLREG_OFF, 2, mod, VME_D16, 140 0, 0)) { 141 return (0); 142 } 143 144 return (1); 145 } 146 147 /* 148 * Attach a display. We need to notice if it is the console, too. 149 */ 150 void 151 cgtwoattach(parent, self, aux) 152 struct device *parent, *self; 153 void *aux; 154 { 155 struct vme_attach_args *va = aux; 156 vme_chipset_tag_t ct = va->va_vct; 157 bus_space_tag_t bt; 158 bus_space_handle_t bh; 159 vme_am_t mod; 160 vme_mapresc_t resc; 161 struct cgtwo_softc *sc = (struct cgtwo_softc *)self; 162 struct fbdevice *fb = &sc->sc_fb; 163 struct eeprom *eep = (struct eeprom *)eeprom_va; 164 int isconsole = 0; 165 166 sc->sc_ct = ct; 167 fb->fb_driver = &cgtwofbdriver; 168 fb->fb_device = &sc->sc_dev; 169 fb->fb_type.fb_type = FBTYPE_SUN2COLOR; 170 fb->fb_flags = sc->sc_dev.dv_cfdata->cf_flags; 171 172 fb->fb_type.fb_depth = 8; 173 fb_setsize_eeprom(fb, fb->fb_type.fb_depth, 1152, 900); 174 175 fb->fb_type.fb_cmsize = 256; 176 fb->fb_type.fb_size = roundup(CG2_MAPPED_SIZE, PAGE_SIZE); 177 printf(": cgtwo, %d x %d", 178 fb->fb_type.fb_width, fb->fb_type.fb_height); 179 180 /* 181 * When the ROM has mapped in a cgtwo display, the address 182 * maps only the video RAM, so in any case we have to map the 183 * registers ourselves. We only need the video RAM if we are 184 * going to print characters via rconsole. 185 */ 186 sc->sc_paddr = va->r[0].offset; 187 mod = 0x3d; /* VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA */ 188 189 if (vme_space_map(ct, sc->sc_paddr + CG2_ROPMEM_OFF + 190 offsetof(struct cg2fb, status.reg), 191 sizeof(struct cg2statusreg), mod, VME_D16, 0, 192 &bt, &bh, &resc) != 0) 193 panic("cgtwo: vme_map status"); 194 sc->sc_bt = bt; 195 sc->sc_reg = (volatile struct cg2statusreg *)bh; /* XXX */ 196 197 if (vme_space_map(ct, sc->sc_paddr + CG2_ROPMEM_OFF + 198 offsetof(struct cg2fb, redmap[0]), 199 3 * CG2_CMSIZE, mod, VME_D16, 0, 200 &bt, &bh, &resc) != 0) 201 panic("cgtwo: vme_map cmap"); 202 sc->sc_cmap = (volatile u_short *)bh; /* XXX */ 203 204 /* 205 * Assume this is the console if there's no eeprom info 206 * to be found. 207 */ 208 if (eep == NULL || eep->eeConsole == EE_CONS_COLOR) 209 isconsole = fb_is_console(0); 210 else 211 isconsole = 0; 212 213 if (isconsole) { 214 if (vme_space_map(ct, sc->sc_paddr + CG2_PIXMAP_OFF, 215 CG2_PIXMAP_SIZE, mod, VME_D16, 0, 216 &bt, &bh, &resc) != 0) 217 panic("cgtwo: vme_map pixels"); 218 219 fb->fb_pixels = (caddr_t)bh; /* XXX */ 220 printf(" (console)\n"); 221 #ifdef RASTERCONSOLE 222 fbrcons_init(fb); 223 #endif 224 } else 225 printf("\n"); 226 227 fb_attach(fb, isconsole); 228 } 229 230 int 231 cgtwoopen(dev, flags, mode, p) 232 dev_t dev; 233 int flags, mode; 234 struct proc *p; 235 { 236 int unit = minor(dev); 237 238 if (unit >= cgtwo_cd.cd_ndevs || cgtwo_cd.cd_devs[unit] == NULL) 239 return (ENXIO); 240 return (0); 241 } 242 243 int 244 cgtwoioctl(dev, cmd, data, flags, p) 245 dev_t dev; 246 u_long cmd; 247 register caddr_t data; 248 int flags; 249 struct proc *p; 250 { 251 register struct cgtwo_softc *sc = cgtwo_cd.cd_devs[minor(dev)]; 252 register struct fbgattr *fba; 253 254 switch (cmd) { 255 256 case FBIOGTYPE: 257 *(struct fbtype *)data = sc->sc_fb.fb_type; 258 break; 259 260 case FBIOGATTR: 261 fba = (struct fbgattr *)data; 262 fba->real_type = sc->sc_fb.fb_type.fb_type; 263 fba->owner = 0; /* XXX ??? */ 264 fba->fbtype = sc->sc_fb.fb_type; 265 fba->sattr.flags = 0; 266 fba->sattr.emu_type = sc->sc_fb.fb_type.fb_type; 267 fba->sattr.dev_specific[0] = -1; 268 fba->emu_types[0] = sc->sc_fb.fb_type.fb_type; 269 fba->emu_types[1] = -1; 270 break; 271 272 case FBIOGETCMAP: 273 return cgtwogetcmap(sc, (struct fbcmap *) data); 274 275 case FBIOPUTCMAP: 276 return cgtwoputcmap(sc, (struct fbcmap *) data); 277 278 case FBIOGVIDEO: 279 *(int *)data = sc->sc_reg->video_enab; 280 break; 281 282 case FBIOSVIDEO: 283 sc->sc_reg->video_enab = (*(int*)data) & 1; 284 break; 285 286 default: 287 return (ENOTTY); 288 } 289 return (0); 290 } 291 292 /* 293 * Undo the effect of an FBIOSVIDEO that turns the video off. 294 */ 295 static void 296 cgtwounblank(dev) 297 struct device *dev; 298 { 299 struct cgtwo_softc *sc = (struct cgtwo_softc *)dev; 300 sc->sc_reg->video_enab = 1; 301 } 302 303 /* 304 */ 305 int 306 cgtwogetcmap(sc, cmap) 307 register struct cgtwo_softc *sc; 308 register struct fbcmap *cmap; 309 { 310 u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE]; 311 int error, start, count, ecount; 312 register u_int i; 313 register volatile u_short *p; 314 315 start = cmap->index; 316 count = cmap->count; 317 ecount = start + count; 318 if (start >= CG2_CMSIZE || count > CG2_CMSIZE - start) 319 return (EINVAL); 320 321 /* XXX - Wait for retrace? */ 322 323 /* Copy hardware to local arrays. */ 324 p = &sc_redmap(sc)[start]; 325 for (i = start; i < ecount; i++) 326 red[i] = *p++; 327 p = &sc_greenmap(sc)[start]; 328 for (i = start; i < ecount; i++) 329 green[i] = *p++; 330 p = &sc_bluemap(sc)[start]; 331 for (i = start; i < ecount; i++) 332 blue[i] = *p++; 333 334 /* Copy local arrays to user space. */ 335 if ((error = copyout(red + start, cmap->red, count)) != 0) 336 return (error); 337 if ((error = copyout(green + start, cmap->green, count)) != 0) 338 return (error); 339 if ((error = copyout(blue + start, cmap->blue, count)) != 0) 340 return (error); 341 342 return (0); 343 } 344 345 /* 346 */ 347 int 348 cgtwoputcmap(sc, cmap) 349 register struct cgtwo_softc *sc; 350 register struct fbcmap *cmap; 351 { 352 u_char red[CG2_CMSIZE], green[CG2_CMSIZE], blue[CG2_CMSIZE]; 353 int error; 354 u_int start, count, ecount; 355 register u_int i; 356 register volatile u_short *p; 357 358 start = cmap->index; 359 count = cmap->count; 360 ecount = start + count; 361 if (start >= CG2_CMSIZE || count > CG2_CMSIZE - start) 362 return (EINVAL); 363 364 /* Copy from user space to local arrays. */ 365 if ((error = copyin(cmap->red, red + start, count)) != 0) 366 return (error); 367 if ((error = copyin(cmap->green, green + start, count)) != 0) 368 return (error); 369 if ((error = copyin(cmap->blue, blue + start, count)) != 0) 370 return (error); 371 372 /* XXX - Wait for retrace? */ 373 374 /* Copy from local arrays to hardware. */ 375 p = &sc_redmap(sc)[start]; 376 for (i = start; i < ecount; i++) 377 *p++ = red[i]; 378 p = &sc_greenmap(sc)[start]; 379 for (i = start; i < ecount; i++) 380 *p++ = green[i]; 381 p = &sc_bluemap(sc)[start]; 382 for (i = start; i < ecount; i++) 383 *p++ = blue[i]; 384 385 return (0); 386 } 387 388 /* 389 * Return the address that would map the given device at the given 390 * offset, allowing for the given protection, or return -1 for error. 391 */ 392 paddr_t 393 cgtwommap(dev, off, prot) 394 dev_t dev; 395 off_t off; 396 int prot; 397 { 398 register struct cgtwo_softc *sc = cgtwo_cd.cd_devs[minor(dev)]; 399 vme_am_t mod; 400 bus_space_handle_t bh; 401 extern int sparc_vme_mmap_cookie __P((vme_addr_t, vme_am_t, 402 bus_space_handle_t *)); 403 404 if (off & PGOFSET) 405 panic("cgtwommap"); 406 407 if (off >= sc->sc_fb.fb_type.fb_size) 408 return (-1); 409 410 /* Apparently, the pixels are in 32-bit data space */ 411 mod = 0x3d; /* VME_AM_A24 | VME_AM_MBO | VME_AM_SUPER | VME_AM_DATA */ 412 413 if (sparc_vme_mmap_cookie(sc->sc_paddr + off, mod, &bh) != 0) 414 panic("cgtwommap"); 415 416 return ((paddr_t)bh); 417 } 418
Indexes created Thu Oct 02 10:09:58 GMT 2025