lunafb.c revision 1.26.4.2
1 /* $NetBSD: lunafb.c,v 1.26.4.2 2014/05/18 17:45:15 rmind Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Tohru Nishimura. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 33 34 __KERNEL_RCSID(0, "$NetBSD: lunafb.c,v 1.26.4.2 2014/05/18 17:45:15 rmind Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/conf.h> 39 #include <sys/device.h> 40 #include <sys/ioctl.h> 41 #include <sys/malloc.h> 42 #include <sys/mman.h> 43 #include <sys/proc.h> 44 #include <sys/tty.h> 45 #include <sys/errno.h> 46 #include <sys/buf.h> 47 48 #include <uvm/uvm_extern.h> 49 50 #include <dev/wscons/wsconsio.h> 51 #include <dev/wscons/wsdisplayvar.h> 52 #include <dev/rasops/rasops.h> 53 54 #include <machine/cpu.h> 55 #include <machine/autoconf.h> 56 57 #include <arch/luna68k/dev/omrasopsvar.h> 58 59 #include "ioconf.h" 60 61 struct bt454 { 62 volatile uint8_t bt_addr; /* map address register */ 63 volatile uint8_t bt_cmap; /* colormap data register */ 64 }; 65 66 struct bt458 { 67 volatile uint8_t bt_addr; /* map address register */ 68 uint8_t pad0[3]; 69 volatile uint8_t bt_cmap; /* colormap data register */ 70 uint8_t pad1[3]; 71 volatile uint8_t bt_ctrl; /* control register */ 72 uint8_t pad2[3]; 73 volatile uint8_t bt_omap; /* overlay (cursor) map register */ 74 uint8_t pad3[3]; 75 }; 76 77 #define OMFB_RFCNT 0xB1000000 /* video h-origin/v-origin */ 78 #define OMFB_PLANEMASK 0xB1040000 /* planemask register */ 79 #define OMFB_FB_WADDR 0xB1080008 /* common plane */ 80 #define OMFB_FB_RADDR 0xB10C0008 /* plane #0 */ 81 #define OMFB_ROPFUNC 0xB12C0000 /* ROP function code */ 82 #define OMFB_RAMDAC 0xC1100000 /* Bt454/Bt458 RAMDAC */ 83 #define OMFB_SIZE (0xB1300000 - 0xB1080000 + PAGE_SIZE) 84 85 struct hwcmap { 86 #define CMAP_SIZE 256 87 uint8_t r[CMAP_SIZE]; 88 uint8_t g[CMAP_SIZE]; 89 uint8_t b[CMAP_SIZE]; 90 }; 91 92 static const struct { 93 uint8_t r; 94 uint8_t g; 95 uint8_t b; 96 } ansicmap[16] = { 97 { 0, 0, 0}, 98 { 0x80, 0, 0}, 99 { 0, 0x80, 0}, 100 { 0x80, 0x80, 0}, 101 { 0, 0, 0x80}, 102 { 0x80, 0, 0x80}, 103 { 0, 0x80, 0x80}, 104 { 0xc0, 0xc0, 0xc0}, 105 { 0x80, 0x80, 0x80}, 106 { 0xff, 0, 0}, 107 { 0, 0xff, 0}, 108 { 0xff, 0xff, 0}, 109 { 0, 0, 0xff}, 110 { 0xff, 0, 0xff}, 111 { 0, 0xff, 0xff}, 112 { 0xff, 0xff, 0xff}, 113 }; 114 115 struct om_hwdevconfig { 116 int dc_wid; /* width of frame buffer */ 117 int dc_ht; /* height of frame buffer */ 118 int dc_depth; /* depth, bits per pixel */ 119 int dc_rowbytes; /* bytes in a FB scan line */ 120 int dc_cmsize; /* colormap size */ 121 struct hwcmap dc_cmap; /* software copy of colormap */ 122 vaddr_t dc_videobase; /* base of flat frame buffer */ 123 struct rasops_info dc_ri; /* raster blitter variables */ 124 }; 125 126 struct omfb_softc { 127 device_t sc_dev; /* base device */ 128 struct om_hwdevconfig *sc_dc; /* device configuration */ 129 int nscreens; 130 }; 131 132 static int omgetcmap(struct omfb_softc *, struct wsdisplay_cmap *); 133 static int omsetcmap(struct omfb_softc *, struct wsdisplay_cmap *); 134 135 static struct om_hwdevconfig omfb_console_dc; 136 static void omfb_getdevconfig(paddr_t, struct om_hwdevconfig *); 137 138 static struct wsscreen_descr omfb_stdscreen = { 139 .name = "std" 140 }; 141 142 static const struct wsscreen_descr *_omfb_scrlist[] = { 143 &omfb_stdscreen, 144 }; 145 146 static const struct wsscreen_list omfb_screenlist = { 147 sizeof(_omfb_scrlist) / sizeof(struct wsscreen_descr *), _omfb_scrlist 148 }; 149 150 static int omfbioctl(void *, void *, u_long, void *, int, struct lwp *); 151 static paddr_t omfbmmap(void *, void *, off_t, int); 152 static int omfb_alloc_screen(void *, const struct wsscreen_descr *, 153 void **, int *, int *, long *); 154 static void omfb_free_screen(void *, void *); 155 static int omfb_show_screen(void *, void *, int, 156 void (*) (void *, int, int), void *); 157 158 static const struct wsdisplay_accessops omfb_accessops = { 159 omfbioctl, 160 omfbmmap, 161 omfb_alloc_screen, 162 omfb_free_screen, 163 omfb_show_screen, 164 0 /* load_font */ 165 }; 166 167 static int omfbmatch(device_t, cfdata_t, void *); 168 static void omfbattach(device_t, device_t, void *); 169 170 CFATTACH_DECL_NEW(fb, sizeof(struct omfb_softc), 171 omfbmatch, omfbattach, NULL, NULL); 172 173 extern int hwplanemask; /* hardware planemask; retrieved at boot */ 174 175 static int omfb_console; 176 int omfb_cnattach(void); 177 178 static int 179 omfbmatch(device_t parent, cfdata_t cf, void *aux) 180 { 181 struct mainbus_attach_args *ma = aux; 182 183 if (strcmp(ma->ma_name, fb_cd.cd_name)) 184 return 0; 185 #if 0 /* XXX badaddr() bombs if no framebuffer is installed */ 186 if (badaddr((void *)ma->ma_addr, 4)) 187 return 0; 188 #else 189 if (hwplanemask == 0) 190 return 0; 191 #endif 192 return 1; 193 } 194 195 static void 196 omfbattach(device_t parent, device_t self, void *args) 197 { 198 struct omfb_softc *sc = device_private(self); 199 struct wsemuldisplaydev_attach_args waa; 200 201 sc->sc_dev = self; 202 203 if (omfb_console) { 204 sc->sc_dc = &omfb_console_dc; 205 sc->nscreens = 1; 206 } else { 207 sc->sc_dc = malloc(sizeof(struct om_hwdevconfig), 208 M_DEVBUF, M_WAITOK | M_ZERO); 209 omfb_getdevconfig(OMFB_FB_WADDR, sc->sc_dc); 210 } 211 aprint_normal(": %d x %d, %dbpp\n", sc->sc_dc->dc_wid, sc->sc_dc->dc_ht, 212 sc->sc_dc->dc_depth); 213 214 waa.console = omfb_console; 215 waa.scrdata = &omfb_screenlist; 216 waa.accessops = &omfb_accessops; 217 waa.accesscookie = sc; 218 219 config_found(self, &waa, wsemuldisplaydevprint); 220 } 221 222 /* EXPORT */ int 223 omfb_cnattach(void) 224 { 225 struct om_hwdevconfig *dc = &omfb_console_dc; 226 struct rasops_info *ri = &dc->dc_ri; 227 long defattr; 228 229 omfb_getdevconfig(OMFB_FB_WADDR, dc); 230 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 231 wsdisplay_cnattach(&omfb_stdscreen, ri, 0, 0, defattr); 232 omfb_console = 1; 233 return 0; 234 } 235 236 static int 237 omfbioctl(void *v, void *vs, u_long cmd, void *data, int flag, struct lwp *l) 238 { 239 struct omfb_softc *sc = v; 240 struct om_hwdevconfig *dc = sc->sc_dc; 241 242 switch (cmd) { 243 case WSDISPLAYIO_GTYPE: 244 *(u_int *)data = WSDISPLAY_TYPE_LUNA; 245 return 0; 246 247 case WSDISPLAYIO_GINFO: 248 #define wsd_fbip ((struct wsdisplay_fbinfo *)data) 249 wsd_fbip->height = dc->dc_ht; 250 wsd_fbip->width = dc->dc_wid; 251 wsd_fbip->depth = dc->dc_depth; 252 wsd_fbip->cmsize = dc->dc_cmsize; 253 #undef fbt 254 return 0; 255 256 case WSDISPLAYIO_LINEBYTES: 257 *(u_int *)data = dc->dc_rowbytes; 258 return 0; 259 260 case WSDISPLAYIO_GETCMAP: 261 return omgetcmap(sc, (struct wsdisplay_cmap *)data); 262 263 case WSDISPLAYIO_PUTCMAP: 264 return omsetcmap(sc, (struct wsdisplay_cmap *)data); 265 266 case WSDISPLAYIO_SVIDEO: 267 case WSDISPLAYIO_GVIDEO: 268 case WSDISPLAYIO_GCURPOS: 269 case WSDISPLAYIO_SCURPOS: 270 case WSDISPLAYIO_GCURMAX: 271 case WSDISPLAYIO_GCURSOR: 272 case WSDISPLAYIO_SCURSOR: 273 break; 274 } 275 return EPASSTHROUGH; 276 } 277 278 /* 279 * Return the address that would map the given device at the given 280 * offset, allowing for the given protection, or return -1 for error. 281 */ 282 static paddr_t 283 omfbmmap(void *v, void *vs, off_t offset, int prot) 284 { 285 struct omfb_softc *sc = v; 286 struct om_hwdevconfig *dc = sc->sc_dc; 287 paddr_t cookie = -1; 288 289 #if 0 /* XXX: quick workaround to make X.Org mono server work */ 290 if (offset >= 0 && offset < OMFB_SIZE) 291 cookie = m68k_btop(m68k_trunc_page(dc->dc_videobase) + offset); 292 #else 293 if (offset >= 0 && offset < dc->dc_rowbytes * dc->dc_ht * dc->dc_depth) 294 cookie = m68k_btop(m68k_trunc_page(OMFB_FB_RADDR) + offset); 295 #endif 296 297 return cookie; 298 } 299 300 static int 301 omgetcmap(struct omfb_softc *sc, struct wsdisplay_cmap *p) 302 { 303 u_int index = p->index, count = p->count; 304 int cmsize, error; 305 306 cmsize = sc->sc_dc->dc_cmsize; 307 if (index >= cmsize || count > cmsize - index) 308 return EINVAL; 309 310 error = copyout(&sc->sc_dc->dc_cmap.r[index], p->red, count); 311 if (error) 312 return error; 313 error = copyout(&sc->sc_dc->dc_cmap.g[index], p->green, count); 314 if (error) 315 return error; 316 error = copyout(&sc->sc_dc->dc_cmap.b[index], p->blue, count); 317 return error; 318 } 319 320 static int 321 omsetcmap(struct omfb_softc *sc, struct wsdisplay_cmap *p) 322 { 323 struct hwcmap cmap; 324 u_int index = p->index, count = p->count; 325 int cmsize, i, error; 326 327 cmsize = sc->sc_dc->dc_cmsize; 328 if (index >= cmsize || (index + count) > cmsize) 329 return (EINVAL); 330 331 error = copyin(p->red, &cmap.r[index], count); 332 if (error) 333 return error; 334 error = copyin(p->green, &cmap.g[index], count); 335 if (error) 336 return error; 337 error = copyin(p->blue, &cmap.b[index], count); 338 if (error) 339 return error; 340 341 memcpy(&sc->sc_dc->dc_cmap.r[index], &cmap.r[index], count); 342 memcpy(&sc->sc_dc->dc_cmap.g[index], &cmap.g[index], count); 343 memcpy(&sc->sc_dc->dc_cmap.b[index], &cmap.b[index], count); 344 if (hwplanemask == 0x0f) { 345 struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC; 346 odac->bt_addr = index; 347 for (i = index; i < index + count; i++) { 348 odac->bt_cmap = sc->sc_dc->dc_cmap.r[i]; 349 odac->bt_cmap = sc->sc_dc->dc_cmap.g[i]; 350 odac->bt_cmap = sc->sc_dc->dc_cmap.b[i]; 351 } 352 } else if (hwplanemask == 0xff) { 353 struct bt458 *ndac = (struct bt458 *)OMFB_RAMDAC; 354 ndac->bt_addr = index; 355 for (i = index; i < index + count; i++) { 356 ndac->bt_cmap = sc->sc_dc->dc_cmap.r[i]; 357 ndac->bt_cmap = sc->sc_dc->dc_cmap.g[i]; 358 ndac->bt_cmap = sc->sc_dc->dc_cmap.b[i]; 359 } 360 } 361 return 0; 362 } 363 364 static void 365 omfb_getdevconfig(paddr_t paddr, struct om_hwdevconfig *dc) 366 { 367 int bpp, i; 368 struct rasops_info *ri; 369 union { 370 struct { short h, v; } p; 371 uint32_t u; 372 } rfcnt; 373 374 switch (hwplanemask) { 375 case 0xff: 376 bpp = 8; /* XXX check monochrome bit in DIPSW */ 377 break; 378 default: 379 case 0x0f: 380 #if 1 381 /* 382 * XXX 383 * experiment resulted in WHITE on SKYBLUE after Xorg server 384 * touches pallete. Disable 4bpp for now. 385 */ 386 bpp = 4; /* XXX check monochrome bit in DIPSW */ 387 break; 388 #endif 389 case 1: 390 bpp = 1; 391 break; 392 } 393 dc->dc_wid = 1280; 394 dc->dc_ht = 1024; 395 dc->dc_depth = bpp; 396 dc->dc_rowbytes = 2048 / 8; 397 dc->dc_cmsize = (bpp == 1) ? 0 : 1 << bpp; 398 dc->dc_videobase = paddr; 399 400 /* WHITE on BLACK */ 401 if (hwplanemask == 0x01) { 402 struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC; 403 404 /* 405 * On 1bpp framebuffer, only plane P0 has framebuffer memory 406 * and other planes seems pulled up, i.e. always 1. 407 * Set white only for a palette (P0,P1,P2,P3) = (1,1,1,1). 408 */ 409 odac->bt_addr = 0; 410 for (i = 0; i < 15; i++) { 411 odac->bt_cmap = dc->dc_cmap.r[i] = 0; 412 odac->bt_cmap = dc->dc_cmap.g[i] = 0; 413 odac->bt_cmap = dc->dc_cmap.b[i] = 0; 414 } 415 /* 416 * The B/W video connector is connected to IOG of Bt454, 417 * and IOR and IOB are unused. 418 */ 419 odac->bt_cmap = dc->dc_cmap.r[15] = 0; 420 odac->bt_cmap = dc->dc_cmap.g[15] = 255; 421 odac->bt_cmap = dc->dc_cmap.b[15] = 0; 422 } else if (hwplanemask == 0x0f) { 423 struct bt454 *odac = (struct bt454 *)OMFB_RAMDAC; 424 425 odac->bt_addr = 0; 426 for (i = 0; i < 16; i++) { 427 odac->bt_cmap = dc->dc_cmap.r[i] = ansicmap[i].r; 428 odac->bt_cmap = dc->dc_cmap.g[i] = ansicmap[i].g; 429 odac->bt_cmap = dc->dc_cmap.b[i] = ansicmap[i].b; 430 } 431 } else if (hwplanemask == 0xff) { 432 struct bt458 *ndac = (struct bt458 *)OMFB_RAMDAC; 433 434 /* Initialize the Bt458 */ 435 ndac->bt_addr = 0x04; 436 ndac->bt_ctrl = 0xff; /* all planes will be read */ 437 ndac->bt_addr = 0x05; 438 ndac->bt_ctrl = 0x00; /* all planes have non-blink */ 439 ndac->bt_addr = 0x06; 440 ndac->bt_ctrl = 0x40; /* pallete enabled, ovly plane disabled */ 441 ndac->bt_addr = 0x07; 442 ndac->bt_ctrl = 0x00; /* no test mode */ 443 444 ndac->bt_addr = 0; 445 ndac->bt_cmap = dc->dc_cmap.r[0] = 0; 446 ndac->bt_cmap = dc->dc_cmap.g[0] = 0; 447 ndac->bt_cmap = dc->dc_cmap.b[0] = 0; 448 for (i = 1; i < 256; i++) { 449 ndac->bt_cmap = dc->dc_cmap.r[i] = 255; 450 ndac->bt_cmap = dc->dc_cmap.g[i] = 255; 451 ndac->bt_cmap = dc->dc_cmap.b[i] = 255; 452 } 453 } 454 455 /* adjust h/v origin on screen */ 456 rfcnt.p.h = 7; 457 rfcnt.p.v = -27; 458 /* single write of 0x007ffe6 */ 459 *(volatile uint32_t *)OMFB_RFCNT = rfcnt.u; 460 461 /* clear the screen */ 462 *(volatile uint32_t *)OMFB_PLANEMASK = 0xff; 463 ((volatile uint32_t *)OMFB_ROPFUNC)[5] = ~0; /* ROP copy */ 464 for (i = 0; i < dc->dc_ht * dc->dc_rowbytes / sizeof(uint32_t); i++) 465 *((volatile uint32_t *)dc->dc_videobase + i) = 0; 466 *(volatile uint32_t *)OMFB_PLANEMASK = 0x01; 467 468 /* initialize the raster */ 469 ri = &dc->dc_ri; 470 ri->ri_width = dc->dc_wid; 471 ri->ri_height = dc->dc_ht; 472 ri->ri_depth = 1; /* since planes are independently addressed */ 473 ri->ri_stride = dc->dc_rowbytes; 474 ri->ri_bits = (void *)dc->dc_videobase; 475 ri->ri_flg = RI_CENTER; 476 if (dc == &omfb_console_dc) 477 ri->ri_flg |= RI_NO_AUTO; 478 ri->ri_hw = dc; 479 480 if (bpp == 4) 481 omrasops4_init(ri, 34, 80); 482 else 483 omrasops1_init(ri, 34, 80); 484 485 omfb_stdscreen.nrows = ri->ri_rows; 486 omfb_stdscreen.ncols = ri->ri_cols; 487 omfb_stdscreen.textops = &ri->ri_ops; 488 omfb_stdscreen.capabilities = ri->ri_caps; 489 omfb_stdscreen.fontwidth = ri->ri_font->fontwidth; 490 omfb_stdscreen.fontheight = ri->ri_font->fontheight; 491 } 492 493 static int 494 omfb_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep, 495 int *curxp, int *curyp, long *attrp) 496 { 497 struct omfb_softc *sc = v; 498 struct rasops_info *ri = &sc->sc_dc->dc_ri; 499 500 if (sc->nscreens > 0) 501 return ENOMEM; 502 503 *cookiep = ri; 504 *curxp = 0; 505 *curyp = 0; 506 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, attrp); 507 sc->nscreens++; 508 return 0; 509 } 510 511 static void 512 omfb_free_screen(void *v, void *cookie) 513 { 514 struct omfb_softc *sc = v; 515 516 if (sc->sc_dc == &omfb_console_dc) 517 panic("omfb_free_screen: console"); 518 519 sc->nscreens--; 520 } 521 522 static int 523 omfb_show_screen(void *v, void *cookie, int waitok, 524 void (*cb)(void *, int, int), void *cbarg) 525 { 526 527 return 0; 528 } 529
Indexes created Sat Oct 18 17:09:52 GMT 2025