1 /* $NetBSD: macfb.c,v 1.19 2007/10/17 19:55:14 garbled 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 1.19 2007/10/17 19:55:14 garbled 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/video.h> 50 #include <machine/grfioctl.h> 51 #include <mac68k/nubus/nubus.h> 52 #include <mac68k/dev/grfvar.h> 53 #include <mac68k/dev/macfbvar.h> 54 #include <dev/wscons/wsconsio.h> 55 56 #include <dev/rcons/raster.h> 57 #include <dev/wscons/wscons_raster.h> 58 #include <dev/wscons/wsdisplayvar.h> 59 60 int macfb_match(struct device *, struct cfdata *, void *); 61 void macfb_attach(struct device *, struct device *, void *); 62 63 CFATTACH_DECL(macfb, sizeof(struct macfb_softc), 64 macfb_match, macfb_attach, NULL, NULL); 65 66 const struct wsdisplay_emulops macfb_emulops = { 67 rcons_cursor, 68 rcons_mapchar, 69 rcons_putchar, 70 rcons_copycols, 71 rcons_erasecols, 72 rcons_copyrows, 73 rcons_eraserows, 74 rcons_allocattr 75 }; 76 77 struct wsscreen_descr macfb_stdscreen = { 78 "std", 79 0, 0, /* will be filled in -- XXX shouldn't, it's global */ 80 &macfb_emulops, 81 0, 0, 82 WSSCREEN_REVERSE 83 }; 84 85 const struct wsscreen_descr *_macfb_scrlist[] = { 86 &macfb_stdscreen, 87 }; 88 89 const struct wsscreen_list macfb_screenlist = { 90 sizeof(_macfb_scrlist) / sizeof(struct wsscreen_descr *), 91 _macfb_scrlist 92 }; 93 94 static int macfb_ioctl(void *, void *, u_long, void *, int, struct lwp *); 95 static paddr_t macfb_mmap(void *, void *, off_t, int); 96 static int macfb_alloc_screen(void *, const struct wsscreen_descr *, 97 void **, int *, int *, long *); 98 static void macfb_free_screen(void *, void *); 99 static int macfb_show_screen(void *, void *, int, 100 void (*)(void *, int, int), void *); 101 102 const struct wsdisplay_accessops macfb_accessops = { 103 macfb_ioctl, 104 macfb_mmap, 105 macfb_alloc_screen, 106 macfb_free_screen, 107 macfb_show_screen, 108 0 /* load_font */ 109 }; 110 111 void macfb_init(struct macfb_devconfig *); 112 113 paddr_t macfb_consaddr; 114 static int macfb_is_console(paddr_t); 115 #ifdef WSDISPLAY_COMPAT_ITEFONT 116 static void init_itefont(void); 117 #endif /* WSDISPLAY_COMPAT_ITEFONT */ 118 119 static struct macfb_devconfig macfb_console_dc; 120 121 static int 122 macfb_is_console(paddr_t addr) 123 { 124 if (addr != macfb_consaddr && 125 (addr >= 0xf9000000 && addr <= 0xfeffffff)) { 126 /* 127 * This is in the NuBus standard slot space range, so we 128 * may well have to look at 0xFssxxxxx, too. Mask off the 129 * slot number and duplicate it in bits 20-23, per IM:V 130 * pp 459, 463, and IM:VI ch 30 p 17. 131 * Note: this is an ugly hack and I wish I knew what 132 * to do about it. -- sr 133 */ 134 addr = (paddr_t)(((u_long)addr & 0xff0fffff) | 135 (((u_long)addr & 0x0f000000) >> 4)); 136 } 137 return ((mac68k_machine.serial_console & 0x03) == 0 138 && (addr == macfb_consaddr)); 139 } 140 141 void 142 macfb_clear(struct macfb_devconfig *dc) 143 { 144 int i, rows; 145 146 /* clear the display */ 147 rows = dc->dc_ht; 148 for (i = 0; rows-- > 0; i += dc->dc_rowbytes) 149 memset((u_char *)dc->dc_vaddr + dc->dc_offset + i, 150 0, dc->dc_rowbytes); 151 } 152 153 void 154 macfb_init(struct macfb_devconfig *dc) 155 { 156 struct raster *rap; 157 struct rcons *rcp; 158 159 macfb_clear(dc); 160 161 #ifdef WSDISPLAY_COMPAT_ITEFONT 162 init_itefont(); 163 #endif /* WSDISPLAY_COMPAT_ITEFONT */ 164 165 rap = &dc->dc_raster; 166 rap->width = dc->dc_wid; 167 rap->height = dc->dc_ht; 168 rap->depth = dc->dc_depth; 169 rap->linelongs = dc->dc_rowbytes / sizeof(u_int32_t); 170 rap->pixels = (u_int32_t *)(dc->dc_vaddr + dc->dc_offset); 171 172 /* initialize the raster console blitter */ 173 rcp = &dc->dc_rcons; 174 rcp->rc_sp = rap; 175 rcp->rc_crow = rcp->rc_ccol = -1; 176 rcp->rc_crowp = &rcp->rc_crow; 177 rcp->rc_ccolp = &rcp->rc_ccol; 178 rcons_init(rcp, 128, 192); 179 180 macfb_stdscreen.nrows = dc->dc_rcons.rc_maxrow; 181 macfb_stdscreen.ncols = dc->dc_rcons.rc_maxcol; 182 } 183 184 int 185 macfb_match(struct device *parent, struct cfdata *match, void *aux) 186 { 187 return (1); 188 } 189 190 void 191 macfb_attach(struct device *parent, struct device *self, void *aux) 192 { 193 struct grfbus_attach_args *ga = aux; 194 struct grfmode *gm = ga->ga_grfmode; 195 struct macfb_softc *sc; 196 struct wsemuldisplaydev_attach_args waa; 197 int isconsole; 198 199 sc = (struct macfb_softc *)self; 200 201 printf("\n"); 202 203 isconsole = macfb_is_console(ga->ga_phys + ga->ga_grfmode->fboff); 204 205 if (isconsole) { 206 sc->sc_dc = &macfb_console_dc; 207 sc->nscreens = 1; 208 } else { 209 sc->sc_dc = malloc(sizeof(struct macfb_devconfig), M_DEVBUF, M_WAITOK); 210 sc->sc_dc->dc_vaddr = (vaddr_t)gm->fbbase; 211 sc->sc_dc->dc_paddr = ga->ga_phys; 212 sc->sc_dc->dc_size = gm->fbsize; 213 214 sc->sc_dc->dc_wid = gm->width; 215 sc->sc_dc->dc_ht = gm->height; 216 sc->sc_dc->dc_depth = gm->psize; 217 sc->sc_dc->dc_rowbytes = gm->rowbytes; 218 219 sc->sc_dc->dc_offset = gm->fboff; 220 221 macfb_clear(sc->sc_dc); 222 223 sc->nscreens = 1; 224 } 225 226 /* initialize the raster */ 227 waa.console = isconsole; 228 waa.scrdata = &macfb_screenlist; 229 waa.accessops = &macfb_accessops; 230 waa.accesscookie = sc; 231 232 config_found(self, &waa, wsemuldisplaydevprint); 233 234 #if NGRF > 0 235 grf_attach(sc, device_unit(self)); 236 #endif 237 } 238 239 240 int 241 macfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 242 struct lwp *l) 243 { 244 struct macfb_softc *sc = v; 245 struct macfb_devconfig *dc = sc->sc_dc; 246 struct wsdisplay_fbinfo *wdf; 247 248 switch (cmd) { 249 case WSDISPLAYIO_GTYPE: 250 *(int *)data = dc->dc_type; 251 return 0; 252 253 case WSDISPLAYIO_GINFO: 254 wdf = (struct wsdisplay_fbinfo *)data; 255 wdf->height = dc->dc_raster.height; 256 wdf->width = dc->dc_raster.width; 257 wdf->depth = dc->dc_raster.depth; 258 wdf->cmsize = 256; 259 return 0; 260 261 case WSDISPLAYIO_GCURMAX: 262 case WSDISPLAYIO_GCURPOS: 263 case WSDISPLAYIO_GCURSOR: 264 case WSDISPLAYIO_GETCMAP: 265 case WSDISPLAYIO_GVIDEO: 266 case WSDISPLAYIO_PUTCMAP: 267 case WSDISPLAYIO_SCURPOS: 268 case WSDISPLAYIO_SCURSOR: 269 case WSDISPLAYIO_SVIDEO: 270 /* NONE of these operations are supported. */ 271 return EPASSTHROUGH; 272 } 273 274 return EPASSTHROUGH; 275 } 276 277 static paddr_t 278 macfb_mmap(void *v, void *vs, off_t offset, int prot) 279 { 280 struct macfb_softc *sc = v; 281 struct macfb_devconfig *dc = sc->sc_dc; 282 paddr_t addr; 283 284 if (offset >= 0 && 285 offset < m68k_round_page(dc->dc_rowbytes * dc->dc_ht)) 286 addr = m68k_btop(dc->dc_paddr + dc->dc_offset + offset); 287 else 288 addr = (-1); /* XXX bogus */ 289 290 return addr; 291 } 292 293 int 294 macfb_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep, 295 int *curxp, int *curyp, long *defattrp) 296 { 297 struct macfb_softc *sc = v; 298 long defattr; 299 300 if (sc->nscreens > 0) 301 return (ENOMEM); 302 303 *cookiep = &sc->sc_dc->dc_rcons; /* one and only for now */ 304 *curxp = 0; 305 *curyp = 0; 306 rcons_allocattr(&sc->sc_dc->dc_rcons, 0, 0, 0, &defattr); 307 *defattrp = defattr; 308 sc->nscreens++; 309 return (0); 310 } 311 312 void 313 macfb_free_screen(void *v, void *cookie) 314 { 315 struct macfb_softc *sc = v; 316 317 if (sc->sc_dc == &macfb_console_dc) 318 panic("cfb_free_screen: console"); 319 320 sc->nscreens--; 321 } 322 323 int 324 macfb_show_screen(void *v, void *cookie, int waitok, 325 void (*cb)(void *, int, int), void *cbarg) 326 { 327 return 0; 328 } 329 330 int 331 macfb_cnattach(paddr_t addr) 332 { 333 struct macfb_devconfig *dc = &macfb_console_dc; 334 long defattr; 335 336 dc->dc_vaddr = m68k_trunc_page(mac68k_video.mv_kvaddr); 337 dc->dc_paddr = m68k_trunc_page(mac68k_video.mv_phys); 338 339 dc->dc_wid = mac68k_video.mv_width; 340 dc->dc_ht = mac68k_video.mv_height; 341 dc->dc_depth = mac68k_video.mv_depth; 342 dc->dc_rowbytes = mac68k_video.mv_stride; 343 344 dc->dc_size = (mac68k_video.mv_len > 0) ? 345 mac68k_video.mv_len : dc->dc_ht * dc->dc_rowbytes; 346 dc->dc_offset = m68k_page_offset(mac68k_video.mv_phys); 347 348 /* set up the display */ 349 macfb_init(&macfb_console_dc); 350 351 rcons_allocattr(&dc->dc_rcons, 0, 0, 0, &defattr); 352 353 wsdisplay_cnattach(&macfb_stdscreen, &dc->dc_rcons, 354 0, 0, defattr); 355 356 macfb_consaddr = addr; 357 dc->isconsole = 1; 358 return (0); 359 } 360 361 #ifdef WSDISPLAY_COMPAT_ITEFONT 362 #include <mac68k/dev/6x10.h> 363 364 void 365 init_itefont(void) 366 { 367 static int itefont_initted; 368 int i, j; 369 370 extern struct raster_font gallant19; /* XXX */ 371 372 if (itefont_initted) 373 return; 374 itefont_initted = 1; 375 376 /* XXX but we cannot use malloc here... */ 377 gallant19.width = 6; 378 gallant19.height = 10; 379 gallant19.ascent = 0; 380 381 for (i = 32; i < 128; i++) { 382 u_int *p; 383 384 if (gallant19.chars[i].r == NULL) 385 continue; 386 387 gallant19.chars[i].r->width = 6; 388 gallant19.chars[i].r->height = 10; 389 p = gallant19.chars[i].r->pixels; 390 391 for (j = 0; j < 10; j++) 392 *p++ = Font6x10[i * 10 + j] << 26; 393 } 394 } 395 #endif /* WSDISPLAY_COMPAT_ITEFONT */ 396