pvr.c revision 1.5
1 /* $NetBSD: pvr.c,v 1.5 2001/02/02 03:07:29 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 Marcus Comstedt. 5 * Copyright (c) 2001 Jason R. Thorpe. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Marcus Comstedt. 19 * 4. Neither the name of The NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 /* 37 * Copyright (c) 1998, 1999 Tohru Nishimura. All rights reserved. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. All advertising materials mentioning features or use of this software 48 * must display the following acknowledgement: 49 * This product includes software developed by Tohru Nishimura 50 * for the NetBSD Project. 51 * 4. The name of the author may not be used to endorse or promote products 52 * derived from this software without specific prior written permission 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 55 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 56 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 57 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 58 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 59 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 63 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 64 */ 65 66 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 67 68 __KERNEL_RCSID(0, "$NetBSD: pvr.c,v 1.5 2001/02/02 03:07:29 thorpej Exp $"); 69 70 #include <sys/param.h> 71 #include <sys/systm.h> 72 #include <sys/kernel.h> 73 #include <sys/device.h> 74 #include <sys/malloc.h> 75 #include <sys/buf.h> 76 #include <sys/ioctl.h> 77 78 #include <machine/cpu.h> 79 #include <machine/bus.h> 80 81 #include <dev/cons.h> 82 83 #include <dev/wscons/wsconsio.h> 84 #include <dev/wscons/wsdisplayvar.h> 85 86 #include <dev/wscons/wscons_callbacks.h> 87 88 #include <dev/rasops/rasops.h> 89 #include <dev/wsfont/wsfont.h> 90 91 #include <dreamcast/dev/pvrvar.h> 92 #include <dreamcast/dev/maple/mkbdvar.h> 93 94 #include <sh3/shbvar.h> 95 96 #include "mkbd.h" 97 98 struct fb_devconfig { 99 vaddr_t dc_vaddr; /* framebuffer virtual address */ 100 vaddr_t dc_paddr; /* framebuffer physical address */ 101 int dc_wid; /* width of frame buffer */ 102 int dc_ht; /* height of frame buffer */ 103 int dc_depth; /* depth, bits per pixel */ 104 int dc_rowbytes; /* bytes in a FB scan line */ 105 vaddr_t dc_videobase; /* base of flat frame buffer */ 106 int dc_blanked; /* currently has video disabled */ 107 int dc_dispflags; /* display flags */ 108 109 struct rasops_info rinfo; 110 }; 111 112 #define PVR_RGBMODE 0x01 /* RGB or composite */ 113 #define PVR_VGAMODE 0x02 /* VGA */ 114 115 struct pvr_softc { 116 struct device sc_dev; 117 struct fb_devconfig *sc_dc; /* device configuration */ 118 int nscreens; 119 }; 120 121 int pvr_match(struct device *, struct cfdata *, void *); 122 void pvr_attach(struct device *, struct device *, void *); 123 124 struct cfattach pvr_ca = { 125 sizeof(struct pvr_softc), pvr_match, pvr_attach, 126 }; 127 128 void pvr_getdevconfig(struct fb_devconfig *); 129 130 struct fb_devconfig pvr_console_dc; 131 132 char pvr_stdscreen_textgeom[32] = { "std" }; /* XXX yuck */ 133 134 struct wsscreen_descr pvr_stdscreen = { 135 pvr_stdscreen_textgeom, 0, 0, 136 0, /* textops */ 137 0, 0, 138 WSSCREEN_WSCOLORS, 139 }; 140 141 const struct wsscreen_descr *_pvr_scrlist[] = { 142 &pvr_stdscreen, 143 }; 144 145 const struct wsscreen_list pvr_screenlist = { 146 sizeof(_pvr_scrlist) / sizeof(struct wsscreen_descr *), _pvr_scrlist 147 }; 148 149 int pvrioctl(void *, u_long, caddr_t, int, struct proc *); 150 paddr_t pvrmmap(void *, off_t, int); 151 152 int pvr_alloc_screen(void *, const struct wsscreen_descr *, 153 void **, int *, int *, long *); 154 void pvr_free_screen(void *, void *); 155 int pvr_show_screen(void *, void *, int, 156 void (*)(void *, int, int), void *); 157 158 const struct wsdisplay_accessops pvr_accessops = { 159 pvrioctl, 160 pvrmmap, 161 pvr_alloc_screen, 162 pvr_free_screen, 163 pvr_show_screen, 164 NULL, /* load_font */ 165 }; 166 167 void pvrinit(struct fb_devconfig *); 168 169 int pvr_is_console; 170 171 int 172 pvr_match(struct device *parent, struct cfdata *match, void *aux) 173 { 174 struct shb_attach_args *sa = aux; 175 176 if (strcmp("pvr", match->cf_driver->cd_name) != 0) 177 return (0); 178 179 sa->ia_iosize = 0; /* 0x1400 */; 180 return (1); 181 } 182 183 void 184 pvr_getdevconfig(struct fb_devconfig *dc) 185 { 186 int i, cookie; 187 188 dc->dc_paddr = 0x05000000; 189 dc->dc_vaddr = SH3_PHYS_TO_P2SEG(dc->dc_paddr); 190 191 dc->dc_wid = 640; 192 dc->dc_ht = 480; 193 dc->dc_depth = 16; 194 dc->dc_rowbytes = dc->dc_wid * (dc->dc_depth / 8); 195 dc->dc_videobase = dc->dc_vaddr; 196 dc->dc_blanked = 0; 197 dc->dc_dispflags = 0; 198 199 /* Clear the screen. */ 200 for (i = 0; i < dc->dc_ht * dc->dc_rowbytes; i += sizeof(u_int32_t)) 201 *(u_int32_t *)(dc->dc_videobase + i) = 0x0; 202 203 /* Initialize the device. */ 204 pvrinit(dc); 205 206 dc->rinfo.ri_flg = 0; 207 dc->rinfo.ri_depth = dc->dc_depth; 208 dc->rinfo.ri_bits = (void *) dc->dc_videobase; 209 dc->rinfo.ri_width = dc->dc_wid; 210 dc->rinfo.ri_height = dc->dc_ht; 211 dc->rinfo.ri_stride = dc->dc_rowbytes; 212 213 wsfont_init(); 214 /* prefer 8 pixel wide font */ 215 if ((cookie = wsfont_find(NULL, 8, 0, 0)) <= 0) 216 cookie = wsfont_find(NULL, 0, 0, 0); 217 if (cookie <= 0) { 218 printf("pvr: font table is empty\n"); 219 return; 220 } 221 222 if (wsfont_lock(cookie, &dc->rinfo.ri_font, 223 WSDISPLAY_FONTORDER_L2R, WSDISPLAY_FONTORDER_L2R) <= 0) { 224 printf("pvr: unable to lock font\n"); 225 return; 226 } 227 dc->rinfo.ri_wsfcookie = cookie; 228 229 rasops_init(&dc->rinfo, 500, 500); 230 231 /* XXX shouldn't be global */ 232 pvr_stdscreen.nrows = dc->rinfo.ri_rows; 233 pvr_stdscreen.ncols = dc->rinfo.ri_cols; 234 pvr_stdscreen.textops = &dc->rinfo.ri_ops; 235 pvr_stdscreen.capabilities = dc->rinfo.ri_caps; 236 237 /* XXX yuck */ 238 sprintf(pvr_stdscreen_textgeom, "%dx%d", pvr_stdscreen.ncols, 239 pvr_stdscreen.nrows); 240 } 241 242 void 243 pvr_attach(struct device *parent, struct device *self, void *aux) 244 { 245 struct pvr_softc *sc = (void *) self; 246 struct wsemuldisplaydev_attach_args waa; 247 int console; 248 249 console = pvr_is_console; 250 if (console) { 251 sc->sc_dc = &pvr_console_dc; 252 sc->nscreens = 1; 253 } else { 254 sc->sc_dc = malloc(sizeof(struct fb_devconfig), M_DEVBUF, 255 M_WAITOK); 256 pvr_getdevconfig(sc->sc_dc); 257 } 258 printf(": %d x %d, %dbpp, %s, %s\n", sc->sc_dc->dc_wid, 259 sc->sc_dc->dc_ht, sc->sc_dc->dc_depth, 260 /* XXX PAL? */ 261 (sc->sc_dc->dc_dispflags & PVR_VGAMODE) ? "VGA" : "NTSC", 262 (sc->sc_dc->dc_dispflags & PVR_RGBMODE) ? "RGB" : "composite"); 263 264 /* XXX Colormap initialization? */ 265 266 waa.console = console; 267 waa.scrdata = &pvr_screenlist; 268 waa.accessops = &pvr_accessops; 269 waa.accesscookie = sc; 270 271 (void) config_found(self, &waa, wsemuldisplaydevprint); 272 } 273 274 int 275 pvrioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p) 276 { 277 struct pvr_softc *sc = v; 278 struct fb_devconfig *dc = sc->sc_dc; 279 280 switch (cmd) { 281 case WSDISPLAYIO_GTYPE: 282 *(u_int *)data = WSDISPLAY_TYPE_DCPVR; 283 return (0); 284 285 case WSDISPLAYIO_GINFO: 286 #define wsd_fbip ((struct wsdisplay_fbinfo *)data) 287 wsd_fbip->height = sc->sc_dc->dc_ht; 288 wsd_fbip->width = sc->sc_dc->dc_wid; 289 wsd_fbip->depth = sc->sc_dc->dc_depth; 290 wsd_fbip->cmsize = 0; /* XXX Colormap */ 291 #undef wsd_fbip 292 return (0); 293 294 case WSDISPLAYIO_GETCMAP: 295 case WSDISPLAYIO_PUTCMAP: 296 return (ENOTTY); /* XXX Colormap */ 297 298 case WSDISPLAYIO_SVIDEO: 299 return (ENOTTY); /* XXX */ 300 301 case WSDISPLAYIO_GVIDEO: 302 *(u_int *)data = dc->dc_blanked ? 303 WSDISPLAYIO_VIDEO_OFF : WSDISPLAYIO_VIDEO_ON; 304 return (0); 305 306 case WSDISPLAYIO_GCURPOS: 307 case WSDISPLAYIO_SCURPOS: 308 case WSDISPLAYIO_GCURMAX: 309 case WSDISPLAYIO_GCURSOR: 310 case WSDISPLAYIO_SCURSOR: 311 return (ENOTTY); /* XXX */ 312 } 313 314 return (ENOTTY); 315 } 316 317 paddr_t 318 pvrmmap(void *v, off_t offset, int prot) 319 { 320 321 /* 322 * XXX This should be easy to support -- just need to define 323 * XXX offsets for the contol regs, etc. 324 */ 325 return (-1); 326 } 327 328 int 329 pvr_alloc_screen(void *v, const struct wsscreen_descr *type, 330 void **cookiep, int *curxp, int *curyp, long *attrp) 331 { 332 struct pvr_softc *sc = v; 333 long defattr; 334 335 if (sc->nscreens > 0) 336 return (ENOMEM); 337 338 *cookiep = &sc->sc_dc->rinfo; /* one and only for now */ 339 *curxp = 0; 340 *curyp = 0; 341 (*sc->sc_dc->rinfo.ri_ops.alloc_attr)(&sc->sc_dc->rinfo, 0, 0, 0, 342 &defattr); 343 *attrp = defattr; 344 sc->nscreens++; 345 return (0); 346 } 347 348 void 349 pvr_free_screen(void *v, void *cookie) 350 { 351 struct pvr_softc *sc = v; 352 353 if (sc->sc_dc == &pvr_console_dc) 354 panic("pvr_free_screen: console"); 355 356 sc->nscreens--; 357 } 358 359 int 360 pvr_show_screen(void *v, void *cookie, int waitok, 361 void (*cb)(void *, int, int), void *cbarg) 362 { 363 364 return (0); 365 } 366 367 static void 368 pvr_check_cable(struct fb_devconfig *dc) 369 { 370 __volatile u_int32_t *porta = 371 (__volatile u_int32_t *)0xff80002c; 372 u_int16_t v; 373 374 /* PORT8 and PORT9 is input */ 375 *porta = (*porta & ~0xf0000) | 0xa0000; 376 377 /* Read PORT8 and PORT9 */ 378 v = ((*(__volatile u_int16_t *)(porta + 1)) >> 8) & 3; 379 380 if ((v & 2) == 0) 381 dc->dc_dispflags |= PVR_VGAMODE|PVR_RGBMODE; 382 else if ((v & 1) == 0) 383 dc->dc_dispflags |= PVR_RGBMODE; 384 } 385 386 void 387 pvrinit(struct fb_devconfig *dc) 388 { 389 __volatile u_int32_t *pvr = (__volatile u_int32_t *) 390 SH3_PHYS_TO_P2SEG(0x005f8000); 391 int display_lines_per_field = 240; 392 int modulo = 1, voffset; 393 394 pvr_check_cable(dc); 395 396 pvr[8/4] = 0; /* reset */ 397 pvr[0x40/4] = 0; /* black border */ 398 399 if (dc->dc_dispflags & PVR_VGAMODE) { 400 pvr[0x44/4] = 0x800004; /* 31kHz, RGB565 */ 401 pvr[0xd0/4] = 0x100; /* video output */ 402 display_lines_per_field = 480; 403 voffset = 36; 404 } else { 405 pvr[0x44/4] = 0x000004; /* 15kHz, RGB565 */ 406 pvr[0xd0/4] = 0x110; /* video output, NTSC, interlace */ 407 modulo += 640 * 2 / 4; /* interlace -> skip every other line */ 408 voffset = 18; 409 } 410 411 pvr[0x50/4] = 0; /* video base address, long field */ 412 pvr[0x54/4] = 640 * 2; /* video base address, short field */ 413 414 pvr[0x5c/4] = (modulo << 20) | ((display_lines_per_field - 1) << 10) | 415 (640 * 2 / 4 - 1); 416 417 voffset = (voffset << 16) | voffset; 418 419 pvr[0xf0/4] = voffset; /* V start */ 420 pvr[0xdc/4] = voffset + display_lines_per_field;/* V border */ 421 pvr[0xec/4] = 164; /* H start */ 422 pvr[0xd8/4] = (524 << 16) | 857; /* HV counter */ 423 pvr[0xd4/4] = (126 << 16) | 837; /* H border */ 424 pvr[0xe8/4] = 22 << 16; 425 426 /* RGB / composite */ 427 *(__volatile u_int32_t *) 428 SH3_PHYS_TO_P2SEG(0x00702c00) = 429 ((dc->dc_dispflags & PVR_RGBMODE) ? 0 : 3) << 8; 430 431 pvr[0x44/4] |= 1; /* display on */ 432 } 433 434 /* Console support. */ 435 436 void pvrcnprobe(struct consdev *); 437 void pvrcninit(struct consdev *); 438 439 void 440 pvrcninit(struct consdev *cndev) 441 { 442 struct fb_devconfig *dcp = &pvr_console_dc; 443 long defattr; 444 445 pvr_getdevconfig(dcp); 446 (*dcp->rinfo.ri_ops.alloc_attr)(&dcp->rinfo, 0, 0, 0, &defattr); 447 wsdisplay_cnattach(&pvr_stdscreen, &dcp->rinfo, 0, 0, defattr); 448 449 pvr_is_console = 1; 450 451 cn_tab->cn_pri = CN_INTERNAL; 452 453 #if NMKBD > 0 454 mkbd_cnattach(); /* connect keyboard and screen together */ 455 #endif 456 } 457 458 void 459 pvrcnprobe(struct consdev *cndev) 460 { 461 #if NWSDISPLAY > 0 462 int maj, unit; 463 #endif 464 cndev->cn_dev = NODEV; 465 cndev->cn_pri = CN_NORMAL; 466 467 #if NWSDISPLAY > 0 468 unit = 0; 469 for (maj = 0; maj < nchrdev; maj++) { 470 if (cdevsw[maj].d_open == wsdisplayopen) 471 break; 472 } 473 if (maj != nchrdev) { 474 cndev->cn_pri = CN_INTERNAL; 475 cndev->cn_dev = makedev(maj, unit); 476 } 477 #endif 478 } 479
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