1 /* $NetBSD: macfb.c,v 1.12 2005/12/11 12:18:02 christos Exp $ */ 2 /* 3 * Copyright (c) 1998 Matt DeBergalis 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Matt DeBergalis 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: macfb.c,v 1.12 2005/12/11 12:18:02 christos Exp $"); 34 35 #include "opt_wsdisplay_compat.h" 36 #include "grf.h" 37 38 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/kernel.h> 43 #include <sys/device.h> 44 #include <sys/malloc.h> 45 46 #include <machine/cpu.h> 47 #include <machine/bus.h> 48 49 #include <machine/grfioctl.h> 50 #include <mac68k/nubus/nubus.h> 51 #include <mac68k/dev/grfvar.h> 52 #include <mac68k/dev/macfbvar.h> 53 #include <dev/wscons/wsconsio.h> 54 55 #include <dev/rcons/raster.h> 56 #include <dev/wscons/wscons_raster.h> 57 #include <dev/wscons/wsdisplayvar.h> 58 59 int macfb_match(struct device *, struct cfdata *, void *); 60 void macfb_attach(struct device *, struct device *, void *); 61 62 CFATTACH_DECL(macfb, sizeof(struct macfb_softc), 63 macfb_match, macfb_attach, NULL, NULL); 64 65 const struct wsdisplay_emulops macfb_emulops = { 66 rcons_cursor, 67 rcons_mapchar, 68 rcons_putchar, 69 rcons_copycols, 70 rcons_erasecols, 71 rcons_copyrows, 72 rcons_eraserows, 73 rcons_allocattr 74 }; 75 76 struct wsscreen_descr macfb_stdscreen = { 77 "std", 78 0, 0, /* will be filled in -- XXX shouldn't, it's global */ 79 &macfb_emulops, 80 0, 0, 81 WSSCREEN_REVERSE 82 }; 83 84 const struct wsscreen_descr *_macfb_scrlist[] = { 85 &macfb_stdscreen, 86 }; 87 88 const struct wsscreen_list macfb_screenlist = { 89 sizeof(_macfb_scrlist) / sizeof(struct wsscreen_descr *), 90 _macfb_scrlist 91 }; 92 93 static int macfb_ioctl(void *, u_long, caddr_t, int, struct lwp *); 94 static paddr_t macfb_mmap(void *, off_t, int); 95 static int macfb_alloc_screen(void *, const struct wsscreen_descr *, 96 void **, int *, int *, long *); 97 static void macfb_free_screen(void *, void *); 98 static int macfb_show_screen(void *, void *, int, 99 void (*)(void *, int, int), void *); 100 101 const struct wsdisplay_accessops macfb_accessops = { 102 macfb_ioctl, 103 macfb_mmap, 104 macfb_alloc_screen, 105 macfb_free_screen, 106 macfb_show_screen, 107 0 /* load_font */ 108 }; 109 110 void macfb_init(struct macfb_devconfig *); 111 112 paddr_t macfb_consaddr; 113 static int macfb_is_console(paddr_t); 114 #ifdef WSDISPLAY_COMPAT_ITEFONT 115 static void init_itefont(void); 116 #endif /* WSDISPLAY_COMPAT_ITEFONT */ 117 118 static struct macfb_devconfig macfb_console_dc; 119 120 /* From Booter via locore */ 121 extern long videoaddr; 122 extern long videorowbytes; 123 extern long videobitdepth; 124 extern u_long videosize; 125 extern u_int32_t mac68k_vidlog; 126 extern u_int32_t mac68k_vidphys; 127 extern u_int32_t mac68k_vidlen; 128 129 static int 130 macfb_is_console(paddr_t addr) 131 { 132 if (addr != macfb_consaddr && 133 (addr >= 0xf9000000 && addr <= 0xfeffffff)) { 134 /* 135 * This is in the NuBus standard slot space range, so we 136 * may well have to look at 0xFssxxxxx, too. Mask off the 137 * slot number and duplicate it in bits 20-23, per IM:V 138 * pp 459, 463, and IM:VI ch 30 p 17. 139 * Note: this is an ugly hack and I wish I knew what 140 * to do about it. -- sr 141 */ 142 addr = (paddr_t)(((u_long)addr & 0xff0fffff) | 143 (((u_long)addr & 0x0f000000) >> 4)); 144 } 145 return ((mac68k_machine.serial_console & 0x03) == 0 146 && (addr == macfb_consaddr)); 147 } 148 149 void 150 macfb_clear(struct macfb_devconfig *dc) 151 { 152 int i, rows; 153 154 /* clear the display */ 155 rows = dc->dc_ht; 156 for (i = 0; rows-- > 0; i += dc->dc_rowbytes) 157 memset((u_char *)dc->dc_vaddr + dc->dc_offset + i, 158 0, dc->dc_rowbytes); 159 } 160 161 void 162 macfb_init(struct macfb_devconfig *dc) 163 { 164 struct raster *rap; 165 struct rcons *rcp; 166 167 macfb_clear(dc); 168 169 #ifdef WSDISPLAY_COMPAT_ITEFONT 170 init_itefont(); 171 #endif /* WSDISPLAY_COMPAT_ITEFONT */ 172 173 rap = &dc->dc_raster; 174 rap->width = dc->dc_wid; 175 rap->height = dc->dc_ht; 176 rap->depth = dc->dc_depth; 177 rap->linelongs = dc->dc_rowbytes / sizeof(u_int32_t); 178 rap->pixels = (u_int32_t *)(dc->dc_vaddr + dc->dc_offset); 179 180 /* initialize the raster console blitter */ 181 rcp = &dc->dc_rcons; 182 rcp->rc_sp = rap; 183 rcp->rc_crow = rcp->rc_ccol = -1; 184 rcp->rc_crowp = &rcp->rc_crow; 185 rcp->rc_ccolp = &rcp->rc_ccol; 186 rcons_init(rcp, 128, 192); 187 188 macfb_stdscreen.nrows = dc->dc_rcons.rc_maxrow; 189 macfb_stdscreen.ncols = dc->dc_rcons.rc_maxcol; 190 } 191 192 int 193 macfb_match(struct device *parent, struct cfdata *match, void *aux) 194 { 195 return (1); 196 } 197 198 void 199 macfb_attach(struct device *parent, struct device *self, void *aux) 200 { 201 struct grfbus_attach_args *ga = aux; 202 struct grfmode *gm = ga->ga_grfmode; 203 struct macfb_softc *sc; 204 struct wsemuldisplaydev_attach_args waa; 205 int isconsole; 206 207 sc = (struct macfb_softc *)self; 208 209 printf("\n"); 210 211 isconsole = macfb_is_console(ga->ga_phys + ga->ga_grfmode->fboff); 212 213 if (isconsole) { 214 sc->sc_dc = &macfb_console_dc; 215 sc->nscreens = 1; 216 } else { 217 sc->sc_dc = malloc(sizeof(struct macfb_devconfig), M_DEVBUF, M_WAITOK); 218 sc->sc_dc->dc_vaddr = (vaddr_t)gm->fbbase; 219 sc->sc_dc->dc_paddr = ga->ga_phys; 220 sc->sc_dc->dc_size = gm->fbsize; 221 222 sc->sc_dc->dc_wid = gm->width; 223 sc->sc_dc->dc_ht = gm->height; 224 sc->sc_dc->dc_depth = gm->psize; 225 sc->sc_dc->dc_rowbytes = gm->rowbytes; 226 227 sc->sc_dc->dc_offset = gm->fboff; 228 229 macfb_clear(sc->sc_dc); 230 231 sc->nscreens = 1; 232 } 233 234 /* initialize the raster */ 235 waa.console = isconsole; 236 waa.scrdata = &macfb_screenlist; 237 waa.accessops = &macfb_accessops; 238 waa.accesscookie = sc; 239 240 config_found(self, &waa, wsemuldisplaydevprint); 241 242 #if NGRF > 0 243 grf_attach(sc, self->dv_unit); 244 #endif 245 } 246 247 248 int 249 macfb_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct lwp *l) 250 { 251 struct macfb_softc *sc = v; 252 struct macfb_devconfig *dc = sc->sc_dc; 253 struct wsdisplay_fbinfo *wdf; 254 255 switch (cmd) { 256 case WSDISPLAYIO_GTYPE: 257 *(int *)data = dc->dc_type; 258 return 0; 259 260 case WSDISPLAYIO_GINFO: 261 wdf = (struct wsdisplay_fbinfo *)data; 262 wdf->height = dc->dc_raster.height; 263 wdf->width = dc->dc_raster.width; 264 wdf->depth = dc->dc_raster.depth; 265 wdf->cmsize = 256; 266 return 0; 267 268 case WSDISPLAYIO_GCURMAX: 269 case WSDISPLAYIO_GCURPOS: 270 case WSDISPLAYIO_GCURSOR: 271 case WSDISPLAYIO_GETCMAP: 272 case WSDISPLAYIO_GVIDEO: 273 case WSDISPLAYIO_PUTCMAP: 274 case WSDISPLAYIO_SCURPOS: 275 case WSDISPLAYIO_SCURSOR: 276 case WSDISPLAYIO_SVIDEO: 277 /* NONE of these operations are supported. */ 278 return EPASSTHROUGH; 279 } 280 281 return EPASSTHROUGH; 282 } 283 284 static paddr_t 285 macfb_mmap(void *v, off_t offset, int prot) 286 { 287 struct macfb_softc *sc = v; 288 struct macfb_devconfig *dc = sc->sc_dc; 289 paddr_t addr; 290 291 if (offset >= 0 && 292 offset < m68k_round_page(dc->dc_rowbytes * dc->dc_ht)) 293 addr = m68k_btop(dc->dc_paddr + dc->dc_offset + offset); 294 else 295 addr = (-1); /* XXX bogus */ 296 297 return addr; 298 } 299 300 int 301 macfb_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep, 302 int *curxp, int *curyp, long *defattrp) 303 { 304 struct macfb_softc *sc = v; 305 long defattr; 306 307 if (sc->nscreens > 0) 308 return (ENOMEM); 309 310 *cookiep = &sc->sc_dc->dc_rcons; /* one and only for now */ 311 *curxp = 0; 312 *curyp = 0; 313 rcons_allocattr(&sc->sc_dc->dc_rcons, 0, 0, 0, &defattr); 314 *defattrp = defattr; 315 sc->nscreens++; 316 return (0); 317 } 318 319 void 320 macfb_free_screen(void *v, void *cookie) 321 { 322 struct macfb_softc *sc = v; 323 324 if (sc->sc_dc == &macfb_console_dc) 325 panic("cfb_free_screen: console"); 326 327 sc->nscreens--; 328 } 329 330 int 331 macfb_show_screen(void *v, void *cookie, int waitok, 332 void (*cb)(void *, int, int), void *cbarg) 333 { 334 return 0; 335 } 336 337 int 338 macfb_cnattach(paddr_t addr) 339 { 340 struct macfb_devconfig *dc = &macfb_console_dc; 341 long defattr; 342 343 dc->dc_vaddr = m68k_trunc_page(videoaddr); 344 dc->dc_paddr = m68k_trunc_page(mac68k_vidphys); 345 346 dc->dc_wid = videosize & 0xffff; 347 dc->dc_ht = (videosize >> 16) & 0xffff; 348 dc->dc_depth = videobitdepth; 349 dc->dc_rowbytes = videorowbytes; 350 351 dc->dc_size = (mac68k_vidlen > 0) ? 352 mac68k_vidlen : dc->dc_ht * dc->dc_rowbytes; 353 dc->dc_offset = m68k_page_offset(mac68k_vidphys); 354 355 /* set up the display */ 356 macfb_init(&macfb_console_dc); 357 358 rcons_allocattr(&dc->dc_rcons, 0, 0, 0, &defattr); 359 360 wsdisplay_cnattach(&macfb_stdscreen, &dc->dc_rcons, 361 0, 0, defattr); 362 363 macfb_consaddr = addr; 364 dc->isconsole = 1; 365 return (0); 366 } 367 368 #ifdef WSDISPLAY_COMPAT_ITEFONT 369 #include <mac68k/dev/6x10.h> 370 371 void 372 init_itefont(void) 373 { 374 static int itefont_initted; 375 int i, j; 376 377 extern struct raster_font gallant19; /* XXX */ 378 379 if (itefont_initted) 380 return; 381 itefont_initted = 1; 382 383 /* XXX but we cannot use malloc here... */ 384 gallant19.width = 6; 385 gallant19.height = 10; 386 gallant19.ascent = 0; 387 388 for (i = 32; i < 128; i++) { 389 u_int *p; 390 391 if (gallant19.chars[i].r == NULL) 392 continue; 393 394 gallant19.chars[i].r->width = 6; 395 gallant19.chars[i].r->height = 10; 396 p = gallant19.chars[i].r->pixels; 397 398 for (j = 0; j < 10; j++) 399 *p++ = Font6x10[i * 10 + j] << 26; 400 } 401 } 402 #endif /* WSDISPLAY_COMPAT_ITEFONT */ 403