genfb.c revision 1.16.4.4
1 /* $NetBSD: genfb.c,v 1.16.4.4 2010/03/11 15:04:10 yamt Exp $ */ 2 3 /*- 4 * Copyright (c) 2007 Michael Lorenz 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: genfb.c,v 1.16.4.4 2010/03/11 15:04:10 yamt Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/device.h> 36 #include <sys/proc.h> 37 #include <sys/mutex.h> 38 #include <sys/ioctl.h> 39 #include <sys/kernel.h> 40 #include <sys/systm.h> 41 #include <sys/kmem.h> 42 43 #include <dev/wscons/wsconsio.h> 44 #include <dev/wscons/wsdisplayvar.h> 45 #include <dev/rasops/rasops.h> 46 #include <dev/wsfont/wsfont.h> 47 48 #include <dev/wscons/wsdisplay_vconsvar.h> 49 50 #include <dev/wsfb/genfbvar.h> 51 52 #ifdef GENFB_DISABLE_TEXT 53 #include <sys/reboot.h> 54 #define DISABLESPLASH (boothowto & (RB_SINGLE | RB_USERCONF | RB_ASKNAME | \ 55 AB_VERBOSE | AB_DEBUG) ) 56 #endif 57 58 #include "opt_genfb.h" 59 #include "opt_wsfb.h" 60 61 #ifdef GENFB_DEBUG 62 #define GPRINTF panic 63 #else 64 #define GPRINTF aprint_verbose 65 #endif 66 67 static int genfb_ioctl(void *, void *, u_long, void *, int, struct lwp *); 68 static paddr_t genfb_mmap(void *, void *, off_t, int); 69 static void genfb_init_screen(void *, struct vcons_screen *, int, long *); 70 71 static int genfb_putcmap(struct genfb_softc *, struct wsdisplay_cmap *); 72 static int genfb_getcmap(struct genfb_softc *, struct wsdisplay_cmap *); 73 static int genfb_putpalreg(struct genfb_softc *, uint8_t, uint8_t, 74 uint8_t, uint8_t); 75 76 extern const u_char rasops_cmap[768]; 77 78 static int genfb_cnattach_called = 0; 79 static int genfb_enabled = 1; 80 81 struct wsdisplay_accessops genfb_accessops = { 82 genfb_ioctl, 83 genfb_mmap, 84 NULL, /* alloc_screen */ 85 NULL, /* free_screen */ 86 NULL, /* show_screen */ 87 NULL, /* load_font */ 88 NULL, /* pollc */ 89 NULL /* scroll */ 90 }; 91 92 static struct genfb_softc *genfb_softc = NULL; 93 94 void 95 genfb_init(struct genfb_softc *sc) 96 { 97 prop_dictionary_t dict; 98 uint64_t cmap_cb, pmf_cb; 99 uint32_t fboffset; 100 101 dict = device_properties(&sc->sc_dev); 102 #ifdef GENFB_DEBUG 103 printf(prop_dictionary_externalize(dict)); 104 #endif 105 if (!prop_dictionary_get_uint32(dict, "width", &sc->sc_width)) { 106 GPRINTF("no width property\n"); 107 return; 108 } 109 if (!prop_dictionary_get_uint32(dict, "height", &sc->sc_height)) { 110 GPRINTF("no height property\n"); 111 return; 112 } 113 if (!prop_dictionary_get_uint32(dict, "depth", &sc->sc_depth)) { 114 GPRINTF("no depth property\n"); 115 return; 116 } 117 118 /* XXX should be a 64bit value */ 119 if (!prop_dictionary_get_uint32(dict, "address", &fboffset)) { 120 GPRINTF("no address property\n"); 121 return; 122 } 123 124 sc->sc_fboffset = fboffset; 125 126 if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->sc_stride)) 127 sc->sc_stride = (sc->sc_width * sc->sc_depth) >> 3; 128 129 /* 130 * deal with a bug in the Raptor firmware which always sets 131 * stride = width even when depth != 8 132 */ 133 if (sc->sc_stride < sc->sc_width * (sc->sc_depth >> 3)) 134 sc->sc_stride = sc->sc_width * (sc->sc_depth >> 3); 135 136 sc->sc_fbsize = sc->sc_height * sc->sc_stride; 137 138 /* optional colour map callback */ 139 sc->sc_cmcb = NULL; 140 if (prop_dictionary_get_uint64(dict, "cmap_callback", &cmap_cb)) { 141 if (cmap_cb != 0) 142 sc->sc_cmcb = (void *)(vaddr_t)cmap_cb; 143 } 144 /* optional pmf callback */ 145 sc->sc_pmfcb = NULL; 146 if (prop_dictionary_get_uint64(dict, "pmf_callback", &pmf_cb)) { 147 if (pmf_cb != 0) 148 sc->sc_pmfcb = (void *)(vaddr_t)pmf_cb; 149 } 150 } 151 152 int 153 genfb_attach(struct genfb_softc *sc, struct genfb_ops *ops) 154 { 155 struct wsemuldisplaydev_attach_args aa; 156 prop_dictionary_t dict; 157 struct rasops_info *ri; 158 uint16_t crow; 159 long defattr; 160 int i, j; 161 bool console; 162 163 dict = device_properties(&sc->sc_dev); 164 prop_dictionary_get_bool(dict, "is_console", &console); 165 166 if (prop_dictionary_get_uint16(dict, "cursor-row", &crow) == false) 167 crow = 0; 168 if (prop_dictionary_get_bool(dict, "clear-screen", &sc->sc_want_clear) 169 == false) 170 sc->sc_want_clear = true; 171 172 /* do not attach when we're not console */ 173 if (!console) { 174 aprint_normal_dev(&sc->sc_dev, "no console, unable to continue\n"); 175 return -1; 176 } 177 178 aprint_verbose_dev(&sc->sc_dev, "framebuffer at %p, size %dx%d, depth %d, " 179 "stride %d\n", 180 sc->sc_fboffset ? (void *)(intptr_t)sc->sc_fboffset : sc->sc_fbaddr, 181 sc->sc_width, sc->sc_height, sc->sc_depth, sc->sc_stride); 182 183 sc->sc_defaultscreen_descr = (struct wsscreen_descr){ 184 "default", 185 0, 0, 186 NULL, 187 8, 16, 188 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 189 NULL 190 }; 191 sc->sc_screens[0] = &sc->sc_defaultscreen_descr; 192 sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens}; 193 memcpy(&sc->sc_ops, ops, sizeof(struct genfb_ops)); 194 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 195 196 sc->sc_shadowfb = kmem_alloc(sc->sc_fbsize, KM_SLEEP); 197 if (sc->sc_want_clear == false && sc->sc_shadowfb != NULL) 198 memcpy(sc->sc_shadowfb, sc->sc_fbaddr, sc->sc_fbsize); 199 200 vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr, 201 &genfb_accessops); 202 sc->vd.init_screen = genfb_init_screen; 203 204 /* Do not print anything between this point and the screen 205 * clear operation below. Otherwise it will be lost. */ 206 207 ri = &sc->sc_console_screen.scr_ri; 208 209 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, 210 &defattr); 211 sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 212 213 #ifdef SPLASHSCREEN 214 /* 215 * If system isn't going to go multiuser, or user has requested to see 216 * boot text, don't render splash screen immediately 217 */ 218 if (DISABLESPLASH) 219 #endif 220 vcons_redraw_screen(&sc->sc_console_screen); 221 222 sc->sc_defaultscreen_descr.textops = &ri->ri_ops; 223 sc->sc_defaultscreen_descr.capabilities = ri->ri_caps; 224 sc->sc_defaultscreen_descr.nrows = ri->ri_rows; 225 sc->sc_defaultscreen_descr.ncols = ri->ri_cols; 226 wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, crow, 227 defattr); 228 229 /* Clear the whole screen to bring it to a known state. */ 230 if (sc->sc_want_clear) 231 (*ri->ri_ops.eraserows)(ri, 0, ri->ri_rows, defattr); 232 233 j = 0; 234 for (i = 0; i < min(1 << sc->sc_depth, 256); i++) { 235 #ifndef SPLASHSCREEN 236 sc->sc_cmap_red[i] = rasops_cmap[j]; 237 sc->sc_cmap_green[i] = rasops_cmap[j + 1]; 238 sc->sc_cmap_blue[i] = rasops_cmap[j + 2]; 239 genfb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 240 rasops_cmap[j + 2]); 241 j += 3; 242 #else 243 if(i >= SPLASH_CMAP_OFFSET && 244 i < SPLASH_CMAP_OFFSET + SPLASH_CMAP_SIZE) { 245 sc->sc_cmap_red[i] = _splash_header_data_cmap[j][0]; 246 sc->sc_cmap_green[i] = _splash_header_data_cmap[j][1]; 247 sc->sc_cmap_blue[i] = _splash_header_data_cmap[j][2]; 248 } else { 249 sc->sc_cmap_red[i] = rasops_cmap[j]; 250 sc->sc_cmap_green[i] = rasops_cmap[j + 1]; 251 sc->sc_cmap_blue[i] = rasops_cmap[j + 2]; 252 genfb_putpalreg(sc, i, rasops_cmap[j], 253 rasops_cmap[j + 1], 254 rasops_cmap[j + 2]); 255 } 256 j += 3; 257 #endif 258 } 259 260 #ifdef SPLASHSCREEN 261 sc->sc_splash.si_depth = sc->sc_depth; 262 sc->sc_splash.si_bits = sc->sc_console_screen.scr_ri.ri_bits; 263 sc->sc_splash.si_hwbits = sc->sc_fbaddr; 264 sc->sc_splash.si_width = sc->sc_width; 265 sc->sc_splash.si_height = sc->sc_height; 266 sc->sc_splash.si_stride = sc->sc_stride; 267 sc->sc_splash.si_fillrect = NULL; 268 if (!DISABLESPLASH) 269 splash_render(&sc->sc_splash, SPLASH_F_CENTER|SPLASH_F_FILL); 270 #ifdef SPLASHSCREEN_PROGRESS 271 sc->sc_progress.sp_top = (sc->sc_height / 8) * 7; 272 sc->sc_progress.sp_width = (sc->sc_width / 4) * 3; 273 sc->sc_progress.sp_left = (sc->sc_width / 8) * 7; 274 sc->sc_progress.sp_height = 20; 275 sc->sc_progress.sp_state = -1; 276 sc->sc_progress.sp_si = &sc->sc_splash; 277 splash_progress_init(&sc->sc_progress); 278 #endif 279 #else 280 vcons_replay_msgbuf(&sc->sc_console_screen); 281 #endif 282 283 if (genfb_softc == NULL) 284 genfb_softc = sc; 285 286 aa.console = console; 287 aa.scrdata = &sc->sc_screenlist; 288 aa.accessops = &genfb_accessops; 289 aa.accesscookie = &sc->vd; 290 291 #ifdef GENFB_DISABLE_TEXT 292 if (!DISABLESPLASH) 293 SCREEN_DISABLE_DRAWING(&sc->sc_console_screen); 294 #endif 295 296 config_found(&sc->sc_dev, &aa, wsemuldisplaydevprint); 297 298 return 0; 299 } 300 301 static int 302 genfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 303 struct lwp *l) 304 { 305 struct vcons_data *vd = v; 306 struct genfb_softc *sc = vd->cookie; 307 struct wsdisplay_fbinfo *wdf; 308 struct vcons_screen *ms = vd->active; 309 int new_mode, error; 310 311 switch (cmd) { 312 case WSDISPLAYIO_GINFO: 313 if (ms == NULL) 314 return ENODEV; 315 wdf = (void *)data; 316 wdf->height = ms->scr_ri.ri_height; 317 wdf->width = ms->scr_ri.ri_width; 318 wdf->depth = ms->scr_ri.ri_depth; 319 wdf->cmsize = 256; 320 return 0; 321 322 case WSDISPLAYIO_GETCMAP: 323 return genfb_getcmap(sc, 324 (struct wsdisplay_cmap *)data); 325 326 case WSDISPLAYIO_PUTCMAP: 327 return genfb_putcmap(sc, 328 (struct wsdisplay_cmap *)data); 329 330 case WSDISPLAYIO_LINEBYTES: 331 *(u_int *)data = sc->sc_stride; 332 return 0; 333 334 case WSDISPLAYIO_SMODE: 335 new_mode = *(int *)data; 336 337 /* notify the bus backend */ 338 error = 0; 339 if (sc->sc_ops.genfb_ioctl) 340 error = sc->sc_ops.genfb_ioctl(sc, vs, 341 cmd, data, flag, l); 342 if (error) 343 return error; 344 345 if (new_mode != sc->sc_mode) { 346 sc->sc_mode = new_mode; 347 if (new_mode == WSDISPLAYIO_MODE_EMUL) { 348 genfb_restore_palette(sc); 349 vcons_redraw_screen(ms); 350 } 351 } 352 return 0; 353 case WSDISPLAYIO_SSPLASH: 354 #if defined(SPLASHSCREEN) 355 if(*(int *)data == 1) { 356 SCREEN_DISABLE_DRAWING(&sc->sc_console_screen); 357 splash_render(&sc->sc_splash, 358 SPLASH_F_CENTER|SPLASH_F_FILL); 359 #if defined(SPLASHSCREEN_PROGRESS) 360 sc->sc_progress.sp_running = 1; 361 #endif 362 } else { 363 SCREEN_ENABLE_DRAWING(&sc->sc_console_screen); 364 #if defined(SPLASHSCREEN_PROGRESS) 365 sc->sc_progress.sp_running = 0; 366 #endif 367 } 368 vcons_redraw_screen(ms); 369 return 0; 370 #else 371 return ENODEV; 372 #endif 373 case WSDISPLAYIO_SPROGRESS: 374 #if defined(SPLASHSCREEN) && defined(SPLASHSCREEN_PROGRESS) 375 sc->sc_progress.sp_force = 1; 376 splash_progress_update(&sc->sc_progress); 377 sc->sc_progress.sp_force = 0; 378 vcons_redraw_screen(ms); 379 return 0; 380 #else 381 return ENODEV; 382 #endif 383 default: 384 if (sc->sc_ops.genfb_ioctl) 385 return sc->sc_ops.genfb_ioctl(sc, vs, cmd, 386 data, flag, l); 387 } 388 return EPASSTHROUGH; 389 } 390 391 static paddr_t 392 genfb_mmap(void *v, void *vs, off_t offset, int prot) 393 { 394 struct vcons_data *vd = v; 395 struct genfb_softc *sc = vd->cookie; 396 397 if (sc->sc_ops.genfb_mmap) 398 return sc->sc_ops.genfb_mmap(sc, vs, offset, prot); 399 400 return -1; 401 } 402 403 static void 404 genfb_init_screen(void *cookie, struct vcons_screen *scr, 405 int existing, long *defattr) 406 { 407 struct genfb_softc *sc = cookie; 408 struct rasops_info *ri = &scr->scr_ri; 409 410 ri->ri_depth = sc->sc_depth; 411 ri->ri_width = sc->sc_width; 412 ri->ri_height = sc->sc_height; 413 ri->ri_stride = sc->sc_stride; 414 ri->ri_flg = RI_CENTER; 415 if (sc->sc_want_clear) 416 ri->ri_flg |= RI_FULLCLEAR; 417 418 if (sc->sc_shadowfb != NULL) { 419 420 ri->ri_hwbits = (char *)sc->sc_fbaddr; 421 ri->ri_bits = (char *)sc->sc_shadowfb; 422 } else 423 ri->ri_bits = (char *)sc->sc_fbaddr; 424 425 if (existing && sc->sc_want_clear) { 426 ri->ri_flg |= RI_CLEAR; 427 } 428 429 rasops_init(ri, sc->sc_height / 8, sc->sc_width / 8); 430 ri->ri_caps = WSSCREEN_WSCOLORS; 431 432 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 433 sc->sc_width / ri->ri_font->fontwidth); 434 435 /* TODO: actually center output */ 436 ri->ri_hw = scr; 437 438 #ifdef GENFB_DISABLE_TEXT 439 if (scr == &sc->sc_console_screen && !DISABLESPLASH) 440 SCREEN_DISABLE_DRAWING(&sc->sc_console_screen); 441 #endif 442 } 443 444 static int 445 genfb_putcmap(struct genfb_softc *sc, struct wsdisplay_cmap *cm) 446 { 447 u_char *r, *g, *b; 448 u_int index = cm->index; 449 u_int count = cm->count; 450 int i, error; 451 u_char rbuf[256], gbuf[256], bbuf[256]; 452 453 #ifdef GENFB_DEBUG 454 aprint_debug("putcmap: %d %d\n",index, count); 455 #endif 456 if (cm->index >= 256 || cm->count > 256 || 457 (cm->index + cm->count) > 256) 458 return EINVAL; 459 error = copyin(cm->red, &rbuf[index], count); 460 if (error) 461 return error; 462 error = copyin(cm->green, &gbuf[index], count); 463 if (error) 464 return error; 465 error = copyin(cm->blue, &bbuf[index], count); 466 if (error) 467 return error; 468 469 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 470 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 471 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 472 473 r = &sc->sc_cmap_red[index]; 474 g = &sc->sc_cmap_green[index]; 475 b = &sc->sc_cmap_blue[index]; 476 477 for (i = 0; i < count; i++) { 478 genfb_putpalreg(sc, index, *r, *g, *b); 479 index++; 480 r++, g++, b++; 481 } 482 return 0; 483 } 484 485 static int 486 genfb_getcmap(struct genfb_softc *sc, struct wsdisplay_cmap *cm) 487 { 488 u_int index = cm->index; 489 u_int count = cm->count; 490 int error; 491 492 if (index >= 255 || count > 256 || index + count > 256) 493 return EINVAL; 494 495 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 496 if (error) 497 return error; 498 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 499 if (error) 500 return error; 501 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 502 if (error) 503 return error; 504 505 return 0; 506 } 507 508 void 509 genfb_restore_palette(struct genfb_softc *sc) 510 { 511 int i; 512 513 if (sc->sc_depth <= 8) { 514 for (i = 0; i < (1 << sc->sc_depth); i++) { 515 genfb_putpalreg(sc, i, sc->sc_cmap_red[i], 516 sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); 517 } 518 } 519 } 520 521 static int 522 genfb_putpalreg(struct genfb_softc *sc, uint8_t idx, uint8_t r, uint8_t g, 523 uint8_t b) 524 { 525 526 if (sc->sc_cmcb) { 527 528 sc->sc_cmcb->gcc_set_mapreg(sc->sc_cmcb->gcc_cookie, 529 idx, r, g, b); 530 } 531 return 0; 532 } 533 534 void 535 genfb_cnattach(void) 536 { 537 genfb_cnattach_called = 1; 538 } 539 540 void 541 genfb_disable(void) 542 { 543 genfb_enabled = 0; 544 } 545 546 int 547 genfb_is_console(void) 548 { 549 return genfb_cnattach_called; 550 } 551 552 int 553 genfb_is_enabled(void) 554 { 555 return genfb_enabled; 556 } 557 558 int 559 genfb_borrow(bus_addr_t addr, bus_space_handle_t *hdlp) 560 { 561 struct genfb_softc *sc = genfb_softc; 562 563 if (sc && sc->sc_ops.genfb_borrow) 564 return sc->sc_ops.genfb_borrow(sc, addr, hdlp); 565 return 0; 566 } 567
Indexes created Thu Oct 16 14:10:15 GMT 2025