1 /* $NetBSD: r128fb.c,v 1.36 2012/10/04 10:22:45 macallan Exp $ */ 2 3 /* 4 * Copyright (c) 2007, 2012 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 AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * A console driver for ATI Rage 128 graphics controllers 30 * tested on macppc only so far 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: r128fb.c,v 1.36 2012/10/04 10:22:45 macallan Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/device.h> 40 #include <sys/malloc.h> 41 #include <sys/lwp.h> 42 #include <sys/kauth.h> 43 44 #include <dev/videomode/videomode.h> 45 46 #include <dev/pci/pcivar.h> 47 #include <dev/pci/pcireg.h> 48 #include <dev/pci/pcidevs.h> 49 #include <dev/pci/pciio.h> 50 #include <dev/pci/r128fbreg.h> 51 52 #include <dev/wscons/wsdisplayvar.h> 53 #include <dev/wscons/wsconsio.h> 54 #include <dev/wsfont/wsfont.h> 55 #include <dev/rasops/rasops.h> 56 #include <dev/wscons/wsdisplay_vconsvar.h> 57 #include <dev/pci/wsdisplay_pci.h> 58 #include <dev/wscons/wsdisplay_glyphcachevar.h> 59 60 #include <dev/i2c/i2cvar.h> 61 62 #include "opt_r128fb.h" 63 #include "opt_vcons.h" 64 65 #ifdef R128FB_DEBUG 66 #define DPRINTF printf 67 #else 68 #define DPRINTF while(0) printf 69 #endif 70 71 struct r128fb_softc { 72 device_t sc_dev; 73 74 pci_chipset_tag_t sc_pc; 75 pcitag_t sc_pcitag; 76 77 bus_space_tag_t sc_memt; 78 bus_space_tag_t sc_iot; 79 80 bus_space_handle_t sc_regh; 81 bus_addr_t sc_fb, sc_reg; 82 bus_size_t sc_fbsize, sc_regsize; 83 84 int sc_width, sc_height, sc_depth, sc_stride; 85 int sc_locked, sc_have_backlight, sc_bl_level, sc_bl_on; 86 struct vcons_screen sc_console_screen; 87 struct wsscreen_descr sc_defaultscreen_descr; 88 const struct wsscreen_descr *sc_screens[1]; 89 struct wsscreen_list sc_screenlist; 90 struct vcons_data vd; 91 int sc_mode; 92 u_char sc_cmap_red[256]; 93 u_char sc_cmap_green[256]; 94 u_char sc_cmap_blue[256]; 95 /* engine stuff */ 96 uint32_t sc_master_cntl; 97 glyphcache sc_gc; 98 }; 99 100 static int r128fb_match(device_t, cfdata_t, void *); 101 static void r128fb_attach(device_t, device_t, void *); 102 103 CFATTACH_DECL_NEW(r128fb, sizeof(struct r128fb_softc), 104 r128fb_match, r128fb_attach, NULL, NULL); 105 106 static int r128fb_ioctl(void *, void *, u_long, void *, int, 107 struct lwp *); 108 static paddr_t r128fb_mmap(void *, void *, off_t, int); 109 static void r128fb_init_screen(void *, struct vcons_screen *, int, long *); 110 111 static int r128fb_putcmap(struct r128fb_softc *, struct wsdisplay_cmap *); 112 static int r128fb_getcmap(struct r128fb_softc *, struct wsdisplay_cmap *); 113 static void r128fb_restore_palette(struct r128fb_softc *); 114 static int r128fb_putpalreg(struct r128fb_softc *, uint8_t, uint8_t, 115 uint8_t, uint8_t); 116 117 static void r128fb_init(struct r128fb_softc *); 118 static void r128fb_flush_engine(struct r128fb_softc *); 119 static void r128fb_rectfill(struct r128fb_softc *, int, int, int, int, 120 uint32_t); 121 static void r128fb_bitblt(void *, int, int, int, int, int, 122 int, int); 123 124 static void r128fb_cursor(void *, int, int, int); 125 static void r128fb_putchar(void *, int, int, u_int, long); 126 static void r128fb_putchar_aa(void *, int, int, u_int, long); 127 static void r128fb_copycols(void *, int, int, int, int); 128 static void r128fb_erasecols(void *, int, int, int, long); 129 static void r128fb_copyrows(void *, int, int, int); 130 static void r128fb_eraserows(void *, int, int, long); 131 132 static void r128fb_brightness_up(device_t); 133 static void r128fb_brightness_down(device_t); 134 /* set backlight level */ 135 static void r128fb_set_backlight(struct r128fb_softc *, int); 136 /* turn backlight on and off without messing with the level */ 137 static void r128fb_switch_backlight(struct r128fb_softc *, int); 138 139 struct wsdisplay_accessops r128fb_accessops = { 140 r128fb_ioctl, 141 r128fb_mmap, 142 NULL, /* alloc_screen */ 143 NULL, /* free_screen */ 144 NULL, /* show_screen */ 145 NULL, /* load_font */ 146 NULL, /* pollc */ 147 NULL /* scroll */ 148 }; 149 150 static inline void 151 r128fb_wait(struct r128fb_softc *sc, int slots) 152 { 153 uint32_t reg; 154 155 do { 156 reg = (bus_space_read_4(sc->sc_memt, sc->sc_regh, 157 R128_GUI_STAT) & R128_GUI_FIFOCNT_MASK); 158 } while (reg <= slots); 159 } 160 161 static void 162 r128fb_flush_engine(struct r128fb_softc *sc) 163 { 164 uint32_t reg; 165 166 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_PC_NGUI_CTLSTAT); 167 reg |= R128_PC_FLUSH_ALL; 168 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PC_NGUI_CTLSTAT, reg); 169 do { 170 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, 171 R128_PC_NGUI_CTLSTAT); 172 } while (reg & R128_PC_BUSY); 173 } 174 175 static int 176 r128fb_match(device_t parent, cfdata_t match, void *aux) 177 { 178 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 179 180 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY) 181 return 0; 182 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_ATI) 183 return 0; 184 185 /* only cards tested on so far - likely need a list */ 186 if ((PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_RAGE1AGP4XT) || 187 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_RAGE3AGP4XT) || 188 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_RAGEGLPCI) || 189 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_RAGE_MOB_M3_AGP)) 190 return 100; 191 return (0); 192 } 193 194 static void 195 r128fb_attach(device_t parent, device_t self, void *aux) 196 { 197 struct r128fb_softc *sc = device_private(self); 198 struct pci_attach_args *pa = aux; 199 struct rasops_info *ri; 200 bus_space_tag_t tag; 201 struct wsemuldisplaydev_attach_args aa; 202 prop_dictionary_t dict; 203 unsigned long defattr; 204 bool is_console; 205 int i, j; 206 uint32_t reg, flags; 207 uint8_t cmap[768]; 208 209 sc->sc_pc = pa->pa_pc; 210 sc->sc_pcitag = pa->pa_tag; 211 sc->sc_memt = pa->pa_memt; 212 sc->sc_iot = pa->pa_iot; 213 sc->sc_dev = self; 214 215 pci_aprint_devinfo(pa, NULL); 216 217 /* fill in parameters from properties */ 218 dict = device_properties(self); 219 if (!prop_dictionary_get_uint32(dict, "width", &sc->sc_width)) { 220 aprint_error("%s: no width property\n", device_xname(self)); 221 return; 222 } 223 if (!prop_dictionary_get_uint32(dict, "height", &sc->sc_height)) { 224 aprint_error("%s: no height property\n", device_xname(self)); 225 return; 226 } 227 228 #ifdef GLYPHCACHE_DEBUG 229 /* leave some visible VRAM unused so we can see the glyph cache */ 230 sc->sc_height -= 200; 231 #endif 232 233 if (!prop_dictionary_get_uint32(dict, "depth", &sc->sc_depth)) { 234 aprint_error("%s: no depth property\n", device_xname(self)); 235 return; 236 } 237 if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->sc_stride)) { 238 aprint_error("%s: no linebytes property\n", 239 device_xname(self)); 240 return; 241 } 242 243 prop_dictionary_get_bool(dict, "is_console", &is_console); 244 245 if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, 0x10, PCI_MAPREG_TYPE_MEM, 246 &sc->sc_fb, &sc->sc_fbsize, &flags)) { 247 aprint_error("%s: failed to map the frame buffer.\n", 248 device_xname(sc->sc_dev)); 249 } 250 251 if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_MEM, 0, 252 &tag, &sc->sc_regh, &sc->sc_reg, &sc->sc_regsize)) { 253 aprint_error("%s: failed to map registers.\n", 254 device_xname(sc->sc_dev)); 255 } 256 257 aprint_normal("%s: %d MB aperture at 0x%08x\n", device_xname(self), 258 (int)(sc->sc_fbsize >> 20), (uint32_t)sc->sc_fb); 259 260 sc->sc_defaultscreen_descr = (struct wsscreen_descr){ 261 "default", 262 0, 0, 263 NULL, 264 8, 16, 265 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 266 NULL 267 }; 268 sc->sc_screens[0] = &sc->sc_defaultscreen_descr; 269 sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens}; 270 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 271 sc->sc_locked = 0; 272 273 vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr, 274 &r128fb_accessops); 275 sc->vd.init_screen = r128fb_init_screen; 276 277 /* init engine here */ 278 r128fb_init(sc); 279 280 ri = &sc->sc_console_screen.scr_ri; 281 282 sc->sc_gc.gc_bitblt = r128fb_bitblt; 283 sc->sc_gc.gc_blitcookie = sc; 284 sc->sc_gc.gc_rop = R128_ROP3_S; 285 if (is_console) { 286 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, 287 &defattr); 288 sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 289 290 r128fb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, 291 ri->ri_devcmap[(defattr >> 16) & 0xff]); 292 sc->sc_defaultscreen_descr.textops = &ri->ri_ops; 293 sc->sc_defaultscreen_descr.capabilities = ri->ri_caps; 294 sc->sc_defaultscreen_descr.nrows = ri->ri_rows; 295 sc->sc_defaultscreen_descr.ncols = ri->ri_cols; 296 glyphcache_init(&sc->sc_gc, sc->sc_height + 5, 297 (0x800000 / sc->sc_stride) - sc->sc_height - 5, 298 sc->sc_width, 299 ri->ri_font->fontwidth, 300 ri->ri_font->fontheight, 301 defattr); 302 wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0, 303 defattr); 304 vcons_replay_msgbuf(&sc->sc_console_screen); 305 } else { 306 /* 307 * since we're not the console we can postpone the rest 308 * until someone actually allocates a screen for us 309 */ 310 if (sc->sc_console_screen.scr_ri.ri_rows == 0) { 311 /* do some minimal setup to avoid weirdnesses later */ 312 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, 313 &defattr); 314 } 315 glyphcache_init(&sc->sc_gc, sc->sc_height + 5, 316 (0x800000 / sc->sc_stride) - sc->sc_height - 5, 317 sc->sc_width, 318 ri->ri_font->fontwidth, 319 ri->ri_font->fontheight, 320 defattr); 321 } 322 323 j = 0; 324 rasops_get_cmap(ri, cmap, sizeof(cmap)); 325 for (i = 0; i < 256; i++) { 326 sc->sc_cmap_red[i] = cmap[j]; 327 sc->sc_cmap_green[i] = cmap[j + 1]; 328 sc->sc_cmap_blue[i] = cmap[j + 2]; 329 r128fb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]); 330 j += 3; 331 } 332 333 /* no suspend/resume support yet */ 334 pmf_device_register(sc->sc_dev, NULL, NULL); 335 336 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 337 DPRINTF("R128_LVDS_GEN_CNTL: %08x\n", reg); 338 if (reg & R128_LVDS_ON) { 339 sc->sc_have_backlight = 1; 340 sc->sc_bl_on = 1; 341 sc->sc_bl_level = 255 - 342 ((reg & R128_LEVEL_MASK) >> R128_LEVEL_SHIFT); 343 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_UP, 344 r128fb_brightness_up, TRUE); 345 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_DOWN, 346 r128fb_brightness_down, TRUE); 347 aprint_verbose("%s: LVDS output is active, enabling backlight" 348 " control\n", device_xname(self)); 349 } else 350 sc->sc_have_backlight = 0; 351 352 aa.console = is_console; 353 aa.scrdata = &sc->sc_screenlist; 354 aa.accessops = &r128fb_accessops; 355 aa.accesscookie = &sc->vd; 356 357 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 358 } 359 360 static int 361 r128fb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 362 struct lwp *l) 363 { 364 struct vcons_data *vd = v; 365 struct r128fb_softc *sc = vd->cookie; 366 struct wsdisplay_fbinfo *wdf; 367 struct vcons_screen *ms = vd->active; 368 struct wsdisplay_param *param; 369 370 switch (cmd) { 371 case WSDISPLAYIO_GTYPE: 372 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 373 return 0; 374 375 /* PCI config read/write passthrough. */ 376 case PCI_IOC_CFGREAD: 377 case PCI_IOC_CFGWRITE: 378 return pci_devioctl(sc->sc_pc, sc->sc_pcitag, 379 cmd, data, flag, l); 380 381 case WSDISPLAYIO_GET_BUSID: 382 return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc, 383 sc->sc_pcitag, data); 384 385 case WSDISPLAYIO_GINFO: 386 if (ms == NULL) 387 return ENODEV; 388 wdf = (void *)data; 389 wdf->height = ms->scr_ri.ri_height; 390 wdf->width = ms->scr_ri.ri_width; 391 wdf->depth = ms->scr_ri.ri_depth; 392 wdf->cmsize = 256; 393 return 0; 394 395 case WSDISPLAYIO_GETCMAP: 396 return r128fb_getcmap(sc, 397 (struct wsdisplay_cmap *)data); 398 399 case WSDISPLAYIO_PUTCMAP: 400 return r128fb_putcmap(sc, 401 (struct wsdisplay_cmap *)data); 402 403 case WSDISPLAYIO_LINEBYTES: 404 *(u_int *)data = sc->sc_stride; 405 return 0; 406 407 case WSDISPLAYIO_SMODE: { 408 int new_mode = *(int*)data; 409 if (new_mode != sc->sc_mode) { 410 sc->sc_mode = new_mode; 411 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 412 r128fb_init(sc); 413 r128fb_restore_palette(sc); 414 glyphcache_wipe(&sc->sc_gc); 415 r128fb_rectfill(sc, 0, 0, sc->sc_width, 416 sc->sc_height, ms->scr_ri.ri_devcmap[ 417 (ms->scr_defattr >> 16) & 0xff]); 418 vcons_redraw_screen(ms); 419 } 420 } 421 } 422 return 0; 423 424 case WSDISPLAYIO_GETPARAM: 425 param = (struct wsdisplay_param *)data; 426 if (sc->sc_have_backlight == 0) 427 return EPASSTHROUGH; 428 switch (param->param) { 429 case WSDISPLAYIO_PARAM_BRIGHTNESS: 430 param->min = 0; 431 param->max = 255; 432 param->curval = sc->sc_bl_level; 433 return 0; 434 case WSDISPLAYIO_PARAM_BACKLIGHT: 435 param->min = 0; 436 param->max = 1; 437 param->curval = sc->sc_bl_on; 438 return 0; 439 } 440 return EPASSTHROUGH; 441 442 case WSDISPLAYIO_SETPARAM: 443 param = (struct wsdisplay_param *)data; 444 if (sc->sc_have_backlight == 0) 445 return EPASSTHROUGH; 446 switch (param->param) { 447 case WSDISPLAYIO_PARAM_BRIGHTNESS: 448 r128fb_set_backlight(sc, param->curval); 449 return 0; 450 case WSDISPLAYIO_PARAM_BACKLIGHT: 451 r128fb_switch_backlight(sc, param->curval); 452 return 0; 453 } 454 return EPASSTHROUGH; 455 case WSDISPLAYIO_GET_EDID: { 456 struct wsdisplayio_edid_info *d = data; 457 return wsdisplayio_get_edid(sc->sc_dev, d); 458 } 459 } 460 return EPASSTHROUGH; 461 } 462 463 static paddr_t 464 r128fb_mmap(void *v, void *vs, off_t offset, int prot) 465 { 466 struct vcons_data *vd = v; 467 struct r128fb_softc *sc = vd->cookie; 468 paddr_t pa; 469 470 /* 'regular' framebuffer mmap()ing */ 471 if (offset < sc->sc_fbsize) { 472 pa = bus_space_mmap(sc->sc_memt, sc->sc_fb + offset, 0, prot, 473 BUS_SPACE_MAP_LINEAR); 474 return pa; 475 } 476 477 /* 478 * restrict all other mappings to processes with superuser privileges 479 * or the kernel itself 480 */ 481 if (kauth_authorize_machdep(kauth_cred_get(), KAUTH_MACHDEP_UNMANAGEDMEM, 482 NULL, NULL, NULL, NULL) != 0) { 483 aprint_normal("%s: mmap() rejected.\n", 484 device_xname(sc->sc_dev)); 485 return -1; 486 } 487 488 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 489 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 490 BUS_SPACE_MAP_LINEAR); 491 return pa; 492 } 493 494 if ((offset >= sc->sc_reg) && 495 (offset < (sc->sc_reg + sc->sc_regsize))) { 496 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 497 BUS_SPACE_MAP_LINEAR); 498 return pa; 499 } 500 501 #ifdef PCI_MAGIC_IO_RANGE 502 /* allow mapping of IO space */ 503 if ((offset >= PCI_MAGIC_IO_RANGE) && 504 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 505 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 506 0, prot, BUS_SPACE_MAP_LINEAR); 507 return pa; 508 } 509 #endif 510 511 #ifdef OFB_ALLOW_OTHERS 512 if (offset >= 0x80000000) { 513 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 514 BUS_SPACE_MAP_LINEAR); 515 return pa; 516 } 517 #endif 518 return -1; 519 } 520 521 static void 522 r128fb_init_screen(void *cookie, struct vcons_screen *scr, 523 int existing, long *defattr) 524 { 525 struct r128fb_softc *sc = cookie; 526 struct rasops_info *ri = &scr->scr_ri; 527 528 ri->ri_depth = sc->sc_depth; 529 ri->ri_width = sc->sc_width; 530 ri->ri_height = sc->sc_height; 531 ri->ri_stride = sc->sc_stride; 532 ri->ri_flg = RI_CENTER; 533 if (sc->sc_depth == 8) 534 ri->ri_flg |= RI_8BIT_IS_RGB | RI_ENABLE_ALPHA; 535 536 rasops_init(ri, 0, 0); 537 ri->ri_caps = WSSCREEN_WSCOLORS; 538 #ifdef VCONS_DRAW_INTR 539 scr->scr_flags |= VCONS_DONT_READ; 540 #endif 541 542 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 543 sc->sc_width / ri->ri_font->fontwidth); 544 545 ri->ri_hw = scr; 546 ri->ri_ops.copyrows = r128fb_copyrows; 547 ri->ri_ops.copycols = r128fb_copycols; 548 ri->ri_ops.eraserows = r128fb_eraserows; 549 ri->ri_ops.erasecols = r128fb_erasecols; 550 ri->ri_ops.cursor = r128fb_cursor; 551 if (FONT_IS_ALPHA(ri->ri_font)) { 552 ri->ri_ops.putchar = r128fb_putchar_aa; 553 } else 554 ri->ri_ops.putchar = r128fb_putchar; 555 } 556 557 static int 558 r128fb_putcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 559 { 560 u_char *r, *g, *b; 561 u_int index = cm->index; 562 u_int count = cm->count; 563 int i, error; 564 u_char rbuf[256], gbuf[256], bbuf[256]; 565 566 #ifdef R128FB_DEBUG 567 aprint_debug("putcmap: %d %d\n",index, count); 568 #endif 569 if (cm->index >= 256 || cm->count > 256 || 570 (cm->index + cm->count) > 256) 571 return EINVAL; 572 error = copyin(cm->red, &rbuf[index], count); 573 if (error) 574 return error; 575 error = copyin(cm->green, &gbuf[index], count); 576 if (error) 577 return error; 578 error = copyin(cm->blue, &bbuf[index], count); 579 if (error) 580 return error; 581 582 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 583 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 584 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 585 586 r = &sc->sc_cmap_red[index]; 587 g = &sc->sc_cmap_green[index]; 588 b = &sc->sc_cmap_blue[index]; 589 590 for (i = 0; i < count; i++) { 591 r128fb_putpalreg(sc, index, *r, *g, *b); 592 index++; 593 r++, g++, b++; 594 } 595 return 0; 596 } 597 598 static int 599 r128fb_getcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 600 { 601 u_int index = cm->index; 602 u_int count = cm->count; 603 int error; 604 605 if (index >= 255 || count > 256 || index + count > 256) 606 return EINVAL; 607 608 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 609 if (error) 610 return error; 611 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 612 if (error) 613 return error; 614 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 615 if (error) 616 return error; 617 618 return 0; 619 } 620 621 static void 622 r128fb_restore_palette(struct r128fb_softc *sc) 623 { 624 int i; 625 626 for (i = 0; i < (1 << sc->sc_depth); i++) { 627 r128fb_putpalreg(sc, i, sc->sc_cmap_red[i], 628 sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); 629 } 630 } 631 632 static int 633 r128fb_putpalreg(struct r128fb_softc *sc, uint8_t idx, uint8_t r, uint8_t g, 634 uint8_t b) 635 { 636 uint32_t reg; 637 638 /* whack the DAC */ 639 reg = (r << 16) | (g << 8) | b; 640 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_INDEX, idx); 641 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_DATA, reg); 642 return 0; 643 } 644 645 static void 646 r128fb_init(struct r128fb_softc *sc) 647 { 648 uint32_t datatype, d, reg; 649 650 r128fb_flush_engine(sc); 651 652 r128fb_wait(sc, 9); 653 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_OFFSET, 0); 654 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_OFFSET, 0); 655 /* pitch is in units of 8 pixels */ 656 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_PITCH, 657 sc->sc_width >> 3); 658 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_AUX_SC_CNTL, 0); 659 bus_space_write_4(sc->sc_memt, sc->sc_regh, 660 R128_DEFAULT_SC_BOTTOM_RIGHT, 661 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 662 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_TOP_LEFT, 0); 663 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_BOTTOM_RIGHT, 664 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 665 bus_space_write_4(sc->sc_memt, sc->sc_regh, 666 R128_DEFAULT_SC_BOTTOM_RIGHT, 667 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 668 669 #if 0 670 #if BYTE_ORDER == BIG_ENDIAN 671 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 672 R128_HOST_BIG_ENDIAN_EN); 673 #else 674 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 0); 675 #endif 676 #endif 677 r128fb_wait(sc, 7); 678 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_PITCH, 679 sc->sc_width >> 3); 680 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_PITCH, 681 sc->sc_width >> 3); 682 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_OFFSET, 0); 683 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_OFFSET, 0); 684 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_WRITE_MASK, 685 0xffffffff); 686 687 switch (sc->sc_depth) { 688 case 8: 689 datatype = R128_GMC_DST_8BPP_CI; 690 d = R128_CRTC_COLOR_8BIT; 691 break; 692 case 15: 693 datatype = R128_GMC_DST_15BPP; 694 d = R128_CRTC_COLOR_15BIT; 695 break; 696 case 16: 697 datatype = R128_GMC_DST_16BPP; 698 d = R128_CRTC_COLOR_16BIT; 699 break; 700 case 24: 701 datatype = R128_GMC_DST_24BPP; 702 d = R128_CRTC_COLOR_24BIT; 703 break; 704 case 32: 705 datatype = R128_GMC_DST_32BPP; 706 d = R128_CRTC_COLOR_32BIT; 707 break; 708 default: 709 aprint_error("%s: unsupported depth %d\n", 710 device_xname(sc->sc_dev), sc->sc_depth); 711 return; 712 } 713 sc->sc_master_cntl = R128_GMC_CLR_CMP_CNTL_DIS | 714 R128_GMC_AUX_CLIP_DIS | datatype; 715 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_CRTC_GEN_CNTL); 716 DPRINTF("depth: %d\n", reg & R128_CRTC_PIX_WIDTH); 717 reg &= ~R128_CRTC_PIX_WIDTH; 718 reg |= d; 719 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_GEN_CNTL, reg); 720 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_PITCH, sc->sc_width >> 3); 721 r128fb_flush_engine(sc); 722 } 723 724 static void 725 r128fb_rectfill(struct r128fb_softc *sc, int x, int y, int wi, int he, 726 uint32_t colour) 727 { 728 729 r128fb_wait(sc, 5); 730 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 731 R128_GMC_BRUSH_SOLID_COLOR | 732 R128_GMC_SRC_DATATYPE_COLOR | 733 R128_ROP3_P | 734 sc->sc_master_cntl); 735 736 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_BRUSH_FRGD_CLR, 737 colour); 738 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, 739 R128_DST_X_LEFT_TO_RIGHT | R128_DST_Y_TOP_TO_BOTTOM); 740 /* now feed it coordinates */ 741 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 742 (x << 16) | y); 743 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 744 (wi << 16) | he); 745 } 746 747 static void 748 r128fb_bitblt(void *cookie, int xs, int ys, int xd, int yd, 749 int wi, int he, int rop) 750 { 751 struct r128fb_softc *sc = cookie; 752 uint32_t dp_cntl = 0; 753 754 r128fb_wait(sc, 5); 755 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 756 R128_GMC_BRUSH_SOLID_COLOR | 757 R128_GMC_SRC_DATATYPE_COLOR | 758 rop | 759 R128_DP_SRC_SOURCE_MEMORY | 760 sc->sc_master_cntl); 761 762 if (yd <= ys) { 763 dp_cntl = R128_DST_Y_TOP_TO_BOTTOM; 764 } else { 765 ys += he - 1; 766 yd += he - 1; 767 } 768 if (xd <= xs) { 769 dp_cntl |= R128_DST_X_LEFT_TO_RIGHT; 770 } else { 771 xs += wi - 1; 772 xd += wi - 1; 773 } 774 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, dp_cntl); 775 776 /* now feed it coordinates */ 777 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 778 (xs << 16) | ys); 779 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 780 (xd << 16) | yd); 781 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 782 (wi << 16) | he); 783 } 784 785 static void 786 r128fb_cursor(void *cookie, int on, int row, int col) 787 { 788 struct rasops_info *ri = cookie; 789 struct vcons_screen *scr = ri->ri_hw; 790 struct r128fb_softc *sc = scr->scr_cookie; 791 int x, y, wi, he; 792 793 wi = ri->ri_font->fontwidth; 794 he = ri->ri_font->fontheight; 795 796 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 797 x = ri->ri_ccol * wi + ri->ri_xorigin; 798 y = ri->ri_crow * he + ri->ri_yorigin; 799 if (ri->ri_flg & RI_CURSOR) { 800 r128fb_bitblt(sc, x, y, x, y, wi, he, R128_ROP3_Dn); 801 ri->ri_flg &= ~RI_CURSOR; 802 } 803 ri->ri_crow = row; 804 ri->ri_ccol = col; 805 if (on) { 806 x = ri->ri_ccol * wi + ri->ri_xorigin; 807 y = ri->ri_crow * he + ri->ri_yorigin; 808 r128fb_bitblt(sc, x, y, x, y, wi, he, R128_ROP3_Dn); 809 ri->ri_flg |= RI_CURSOR; 810 } 811 } else { 812 scr->scr_ri.ri_crow = row; 813 scr->scr_ri.ri_ccol = col; 814 scr->scr_ri.ri_flg &= ~RI_CURSOR; 815 } 816 817 } 818 819 static void 820 r128fb_putchar(void *cookie, int row, int col, u_int c, long attr) 821 { 822 struct rasops_info *ri = cookie; 823 struct wsdisplay_font *font = PICK_FONT(ri, c); 824 struct vcons_screen *scr = ri->ri_hw; 825 struct r128fb_softc *sc = scr->scr_cookie; 826 void *data; 827 uint32_t fg, bg; 828 int i, x, y, wi, he, offset; 829 830 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 831 return; 832 833 if (!CHAR_IN_FONT(c, font)) 834 return; 835 836 wi = font->fontwidth; 837 he = font->fontheight; 838 839 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 840 fg = ri->ri_devcmap[(attr >> 24) & 0xf]; 841 x = ri->ri_xorigin + col * wi; 842 y = ri->ri_yorigin + row * he; 843 844 if (c == 0x20) { 845 r128fb_rectfill(sc, x, y, wi, he, bg); 846 return; 847 } 848 849 data = WSFONT_GLYPH(c, font); 850 851 r128fb_wait(sc, 8); 852 853 bus_space_write_4(sc->sc_memt, sc->sc_regh, 854 R128_DP_GUI_MASTER_CNTL, 855 R128_GMC_BRUSH_SOLID_COLOR | 856 R128_GMC_SRC_DATATYPE_MONO_FG_BG | 857 R128_ROP3_S | 858 R128_DP_SRC_SOURCE_HOST_DATA | 859 R128_GMC_DST_CLIPPING | 860 sc->sc_master_cntl); 861 862 bus_space_write_4(sc->sc_memt, sc->sc_regh, 863 R128_DP_CNTL, 864 R128_DST_Y_TOP_TO_BOTTOM | 865 R128_DST_X_LEFT_TO_RIGHT); 866 867 bus_space_write_4(sc->sc_memt, sc->sc_regh, 868 R128_DP_SRC_FRGD_CLR, fg); 869 bus_space_write_4(sc->sc_memt, sc->sc_regh, 870 R128_DP_SRC_BKGD_CLR, bg); 871 872 /* 873 * The Rage 128 doesn't have anything to skip pixels 874 * when colour expanding but all coordinates 875 * are signed so we just clip the leading bytes and 876 * trailing bits away 877 */ 878 bus_space_write_4(sc->sc_memt, sc->sc_regh, 879 R128_SC_RIGHT, x + wi - 1); 880 bus_space_write_4(sc->sc_memt, sc->sc_regh, 881 R128_SC_LEFT, x); 882 883 /* needed? */ 884 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 0); 885 886 offset = 32 - (font->stride << 3); 887 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 888 ((x - offset) << 16) | y); 889 bus_space_write_4(sc->sc_memt, sc->sc_regh, 890 R128_DST_WIDTH_HEIGHT, (32 << 16) | he); 891 892 r128fb_wait(sc, he); 893 switch (font->stride) { 894 case 1: { 895 uint8_t *data8 = data; 896 uint32_t reg; 897 for (i = 0; i < he; i++) { 898 reg = *data8; 899 bus_space_write_stream_4(sc->sc_memt, 900 sc->sc_regh, R128_HOST_DATA0, reg); 901 data8++; 902 } 903 break; 904 } 905 case 2: { 906 uint16_t *data16 = data; 907 uint32_t reg; 908 for (i = 0; i < he; i++) { 909 reg = *data16; 910 bus_space_write_stream_4(sc->sc_memt, 911 sc->sc_regh, R128_HOST_DATA0, reg); 912 data16++; 913 } 914 break; 915 } 916 } 917 } 918 919 static void 920 r128fb_putchar_aa(void *cookie, int row, int col, u_int c, long attr) 921 { 922 struct rasops_info *ri = cookie; 923 struct wsdisplay_font *font = PICK_FONT(ri, c); 924 struct vcons_screen *scr = ri->ri_hw; 925 struct r128fb_softc *sc = scr->scr_cookie; 926 uint32_t bg, latch = 0, bg8, fg8, pixel; 927 int i, x, y, wi, he, r, g, b, aval; 928 int r1, g1, b1, r0, g0, b0, fgo, bgo; 929 uint8_t *data8; 930 int rv, cnt = 0; 931 932 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 933 return; 934 935 if (!CHAR_IN_FONT(c, font)) 936 return; 937 938 wi = font->fontwidth; 939 he = font->fontheight; 940 941 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 942 x = ri->ri_xorigin + col * wi; 943 y = ri->ri_yorigin + row * he; 944 if (c == 0x20) { 945 r128fb_rectfill(sc, x, y, wi, he, bg); 946 return; 947 } 948 949 rv = glyphcache_try(&sc->sc_gc, c, x, y, attr); 950 if (rv == GC_OK) 951 return; 952 953 data8 = WSFONT_GLYPH(c, font); 954 955 r128fb_wait(sc, 5); 956 bus_space_write_4(sc->sc_memt, sc->sc_regh, 957 R128_DP_GUI_MASTER_CNTL, 958 R128_GMC_BRUSH_SOLID_COLOR | 959 R128_GMC_SRC_DATATYPE_COLOR | 960 R128_ROP3_S | 961 R128_DP_SRC_SOURCE_HOST_DATA | 962 sc->sc_master_cntl); 963 964 bus_space_write_4(sc->sc_memt, sc->sc_regh, 965 R128_DP_CNTL, 966 R128_DST_Y_TOP_TO_BOTTOM | 967 R128_DST_X_LEFT_TO_RIGHT); 968 969 /* needed? */ 970 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 0); 971 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 972 (x << 16) | y); 973 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 974 (wi << 16) | he); 975 976 /* 977 * we need the RGB colours here, so get offsets into rasops_cmap 978 */ 979 fgo = ((attr >> 24) & 0xf) * 3; 980 bgo = ((attr >> 16) & 0xf) * 3; 981 982 r0 = rasops_cmap[bgo]; 983 r1 = rasops_cmap[fgo]; 984 g0 = rasops_cmap[bgo + 1]; 985 g1 = rasops_cmap[fgo + 1]; 986 b0 = rasops_cmap[bgo + 2]; 987 b1 = rasops_cmap[fgo + 2]; 988 #define R3G3B2(r, g, b) ((r & 0xe0) | ((g >> 3) & 0x1c) | (b >> 6)) 989 bg8 = R3G3B2(r0, g0, b0); 990 fg8 = R3G3B2(r1, g1, b1); 991 992 r128fb_wait(sc, 16); 993 994 for (i = 0; i < ri->ri_fontscale; i++) { 995 aval = *data8; 996 if (aval == 0) { 997 pixel = bg8; 998 } else if (aval == 255) { 999 pixel = fg8; 1000 } else { 1001 r = aval * r1 + (255 - aval) * r0; 1002 g = aval * g1 + (255 - aval) * g0; 1003 b = aval * b1 + (255 - aval) * b0; 1004 pixel = ((r & 0xe000) >> 8) | 1005 ((g & 0xe000) >> 11) | 1006 ((b & 0xc000) >> 14); 1007 } 1008 latch = (latch << 8) | pixel; 1009 /* write in 32bit chunks */ 1010 if ((i & 3) == 3) { 1011 bus_space_write_stream_4(sc->sc_memt, sc->sc_regh, 1012 R128_HOST_DATA0, latch); 1013 /* 1014 * not strictly necessary, old data should be shifted 1015 * out 1016 */ 1017 latch = 0; 1018 cnt++; 1019 if (cnt > 15) { 1020 r128fb_wait(sc, 16); 1021 cnt = 0; 1022 } 1023 } 1024 data8++; 1025 } 1026 /* if we have pixels left in latch write them out */ 1027 if ((i & 3) != 0) { 1028 latch = latch << ((4 - (i & 3)) << 3); 1029 bus_space_write_stream_4(sc->sc_memt, sc->sc_regh, 1030 R128_HOST_DATA0, latch); 1031 } 1032 if (rv == GC_ADD) { 1033 glyphcache_add(&sc->sc_gc, c, x, y); 1034 } 1035 } 1036 1037 static void 1038 r128fb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 1039 { 1040 struct rasops_info *ri = cookie; 1041 struct vcons_screen *scr = ri->ri_hw; 1042 struct r128fb_softc *sc = scr->scr_cookie; 1043 int32_t xs, xd, y, width, height; 1044 1045 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1046 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 1047 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 1048 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1049 width = ri->ri_font->fontwidth * ncols; 1050 height = ri->ri_font->fontheight; 1051 r128fb_bitblt(sc, xs, y, xd, y, width, height, R128_ROP3_S); 1052 } 1053 } 1054 1055 static void 1056 r128fb_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr) 1057 { 1058 struct rasops_info *ri = cookie; 1059 struct vcons_screen *scr = ri->ri_hw; 1060 struct r128fb_softc *sc = scr->scr_cookie; 1061 int32_t x, y, width, height, fg, bg, ul; 1062 1063 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1064 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 1065 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1066 width = ri->ri_font->fontwidth * ncols; 1067 height = ri->ri_font->fontheight; 1068 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 1069 1070 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 1071 } 1072 } 1073 1074 static void 1075 r128fb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 1076 { 1077 struct rasops_info *ri = cookie; 1078 struct vcons_screen *scr = ri->ri_hw; 1079 struct r128fb_softc *sc = scr->scr_cookie; 1080 int32_t x, ys, yd, width, height; 1081 1082 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1083 x = ri->ri_xorigin; 1084 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 1085 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 1086 width = ri->ri_emuwidth; 1087 height = ri->ri_font->fontheight * nrows; 1088 r128fb_bitblt(sc, x, ys, x, yd, width, height, R128_ROP3_S); 1089 } 1090 } 1091 1092 static void 1093 r128fb_eraserows(void *cookie, int row, int nrows, long fillattr) 1094 { 1095 struct rasops_info *ri = cookie; 1096 struct vcons_screen *scr = ri->ri_hw; 1097 struct r128fb_softc *sc = scr->scr_cookie; 1098 int32_t x, y, width, height, fg, bg, ul; 1099 1100 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1101 x = ri->ri_xorigin; 1102 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1103 width = ri->ri_emuwidth; 1104 height = ri->ri_font->fontheight * nrows; 1105 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 1106 1107 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 1108 } 1109 } 1110 1111 static void 1112 r128fb_set_backlight(struct r128fb_softc *sc, int level) 1113 { 1114 uint32_t reg; 1115 1116 /* 1117 * should we do nothing when backlight is off, should we just store the 1118 * level and use it when turning back on or should we just flip sc_bl_on 1119 * and turn the backlight on? 1120 * For now turn it on so a crashed screensaver can't get the user stuck 1121 * with a dark screen as long as hotkeys work 1122 */ 1123 if (level > 255) level = 255; 1124 if (level < 0) level = 0; 1125 if (level == sc->sc_bl_level) 1126 return; 1127 sc->sc_bl_level = level; 1128 if (sc->sc_bl_on == 0) 1129 sc->sc_bl_on = 1; 1130 level = 255 - level; 1131 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 1132 reg &= ~R128_LEVEL_MASK; 1133 reg |= (level << R128_LEVEL_SHIFT); 1134 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 1135 DPRINTF("backlight level: %d reg %08x\n", level, reg); 1136 } 1137 1138 static void 1139 r128fb_switch_backlight(struct r128fb_softc *sc, int on) 1140 { 1141 uint32_t reg; 1142 int level; 1143 1144 if (on == sc->sc_bl_on) 1145 return; 1146 sc->sc_bl_on = on; 1147 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 1148 reg &= ~R128_LEVEL_MASK; 1149 level = on ? 255 - sc->sc_bl_level : 255; 1150 reg |= level << R128_LEVEL_SHIFT; 1151 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 1152 DPRINTF("backlight state: %d reg %08x\n", on, reg); 1153 } 1154 1155 1156 static void 1157 r128fb_brightness_up(device_t dev) 1158 { 1159 struct r128fb_softc *sc = device_private(dev); 1160 1161 r128fb_set_backlight(sc, sc->sc_bl_level + 8); 1162 } 1163 1164 static void 1165 r128fb_brightness_down(device_t dev) 1166 { 1167 struct r128fb_softc *sc = device_private(dev); 1168 1169 r128fb_set_backlight(sc, sc->sc_bl_level - 8); 1170 } 1171