r128fb.c revision 1.33
1 /* $NetBSD: r128fb.c,v 1.33 2012/04/19 06:58:55 macallan 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 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 1.33 2012/04/19 06:58:55 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 if (!prop_dictionary_get_uint32(dict, "depth", &sc->sc_depth)) { 228 aprint_error("%s: no depth property\n", device_xname(self)); 229 return; 230 } 231 if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->sc_stride)) { 232 aprint_error("%s: no linebytes property\n", 233 device_xname(self)); 234 return; 235 } 236 237 prop_dictionary_get_bool(dict, "is_console", &is_console); 238 239 if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, 0x10, PCI_MAPREG_TYPE_MEM, 240 &sc->sc_fb, &sc->sc_fbsize, &flags)) { 241 aprint_error("%s: failed to map the frame buffer.\n", 242 device_xname(sc->sc_dev)); 243 } 244 245 if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_MEM, 0, 246 &tag, &sc->sc_regh, &sc->sc_reg, &sc->sc_regsize)) { 247 aprint_error("%s: failed to map registers.\n", 248 device_xname(sc->sc_dev)); 249 } 250 251 aprint_normal("%s: %d MB aperture at 0x%08x\n", device_xname(self), 252 (int)(sc->sc_fbsize >> 20), (uint32_t)sc->sc_fb); 253 254 sc->sc_defaultscreen_descr = (struct wsscreen_descr){ 255 "default", 256 0, 0, 257 NULL, 258 8, 16, 259 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 260 NULL 261 }; 262 sc->sc_screens[0] = &sc->sc_defaultscreen_descr; 263 sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens}; 264 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 265 sc->sc_locked = 0; 266 267 vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr, 268 &r128fb_accessops); 269 sc->vd.init_screen = r128fb_init_screen; 270 271 /* init engine here */ 272 r128fb_init(sc); 273 274 ri = &sc->sc_console_screen.scr_ri; 275 276 sc->sc_gc.gc_bitblt = r128fb_bitblt; 277 sc->sc_gc.gc_blitcookie = sc; 278 sc->sc_gc.gc_rop = R128_ROP3_S; 279 if (is_console) { 280 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, 281 &defattr); 282 sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 283 284 r128fb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, 285 ri->ri_devcmap[(defattr >> 16) & 0xff]); 286 sc->sc_defaultscreen_descr.textops = &ri->ri_ops; 287 sc->sc_defaultscreen_descr.capabilities = ri->ri_caps; 288 sc->sc_defaultscreen_descr.nrows = ri->ri_rows; 289 sc->sc_defaultscreen_descr.ncols = ri->ri_cols; 290 glyphcache_init(&sc->sc_gc, sc->sc_height + 5, 291 sc->sc_width, 292 (0x800000 / sc->sc_stride) - sc->sc_height - 5, 293 ri->ri_font->fontwidth, 294 ri->ri_font->fontheight, 295 defattr); 296 wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0, 297 defattr); 298 vcons_replay_msgbuf(&sc->sc_console_screen); 299 } else { 300 /* 301 * since we're not the console we can postpone the rest 302 * until someone actually allocates a screen for us 303 */ 304 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 305 glyphcache_init(&sc->sc_gc, sc->sc_height, 306 sc->sc_width, 307 (0x800000 / sc->sc_stride) - sc->sc_height, 308 ri->ri_font->fontwidth, 309 ri->ri_font->fontheight, 310 defattr); 311 } 312 313 j = 0; 314 rasops_get_cmap(ri, cmap, sizeof(cmap)); 315 for (i = 0; i < 256; i++) { 316 sc->sc_cmap_red[i] = cmap[j]; 317 sc->sc_cmap_green[i] = cmap[j + 1]; 318 sc->sc_cmap_blue[i] = cmap[j + 2]; 319 r128fb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]); 320 j += 3; 321 } 322 323 /* no suspend/resume support yet */ 324 pmf_device_register(sc->sc_dev, NULL, NULL); 325 326 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 327 DPRINTF("R128_LVDS_GEN_CNTL: %08x\n", reg); 328 if (reg & R128_LVDS_ON) { 329 sc->sc_have_backlight = 1; 330 sc->sc_bl_on = 1; 331 sc->sc_bl_level = 255 - 332 ((reg & R128_LEVEL_MASK) >> R128_LEVEL_SHIFT); 333 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_UP, 334 r128fb_brightness_up, TRUE); 335 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_DOWN, 336 r128fb_brightness_down, TRUE); 337 aprint_verbose("%s: LVDS output is active, enabling backlight" 338 " control\n", device_xname(self)); 339 } else 340 sc->sc_have_backlight = 0; 341 342 aa.console = is_console; 343 aa.scrdata = &sc->sc_screenlist; 344 aa.accessops = &r128fb_accessops; 345 aa.accesscookie = &sc->vd; 346 347 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 348 } 349 350 static int 351 r128fb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 352 struct lwp *l) 353 { 354 struct vcons_data *vd = v; 355 struct r128fb_softc *sc = vd->cookie; 356 struct wsdisplay_fbinfo *wdf; 357 struct vcons_screen *ms = vd->active; 358 struct wsdisplay_param *param; 359 360 switch (cmd) { 361 case WSDISPLAYIO_GTYPE: 362 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 363 return 0; 364 365 /* PCI config read/write passthrough. */ 366 case PCI_IOC_CFGREAD: 367 case PCI_IOC_CFGWRITE: 368 return pci_devioctl(sc->sc_pc, sc->sc_pcitag, 369 cmd, data, flag, l); 370 371 case WSDISPLAYIO_GET_BUSID: 372 return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc, sc->sc_pcitag, data); 373 374 case WSDISPLAYIO_GINFO: 375 if (ms == NULL) 376 return ENODEV; 377 wdf = (void *)data; 378 wdf->height = ms->scr_ri.ri_height; 379 wdf->width = ms->scr_ri.ri_width; 380 wdf->depth = ms->scr_ri.ri_depth; 381 wdf->cmsize = 256; 382 return 0; 383 384 case WSDISPLAYIO_GETCMAP: 385 return r128fb_getcmap(sc, 386 (struct wsdisplay_cmap *)data); 387 388 case WSDISPLAYIO_PUTCMAP: 389 return r128fb_putcmap(sc, 390 (struct wsdisplay_cmap *)data); 391 392 case WSDISPLAYIO_LINEBYTES: 393 *(u_int *)data = sc->sc_stride; 394 return 0; 395 396 case WSDISPLAYIO_SMODE: { 397 int new_mode = *(int*)data; 398 if (new_mode != sc->sc_mode) { 399 sc->sc_mode = new_mode; 400 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 401 r128fb_init(sc); 402 r128fb_restore_palette(sc); 403 glyphcache_wipe(&sc->sc_gc); 404 r128fb_rectfill(sc, 0, 0, sc->sc_width, 405 sc->sc_height, ms->scr_ri.ri_devcmap[ 406 (ms->scr_defattr >> 16) & 0xff]); 407 vcons_redraw_screen(ms); 408 } 409 } 410 } 411 return 0; 412 413 case WSDISPLAYIO_GETPARAM: 414 param = (struct wsdisplay_param *)data; 415 if (sc->sc_have_backlight == 0) 416 return EPASSTHROUGH; 417 switch (param->param) { 418 case WSDISPLAYIO_PARAM_BRIGHTNESS: 419 param->min = 0; 420 param->max = 255; 421 param->curval = sc->sc_bl_level; 422 return 0; 423 case WSDISPLAYIO_PARAM_BACKLIGHT: 424 param->min = 0; 425 param->max = 1; 426 param->curval = sc->sc_bl_on; 427 return 0; 428 } 429 return EPASSTHROUGH; 430 431 case WSDISPLAYIO_SETPARAM: 432 param = (struct wsdisplay_param *)data; 433 if (sc->sc_have_backlight == 0) 434 return EPASSTHROUGH; 435 switch (param->param) { 436 case WSDISPLAYIO_PARAM_BRIGHTNESS: 437 r128fb_set_backlight(sc, param->curval); 438 return 0; 439 case WSDISPLAYIO_PARAM_BACKLIGHT: 440 r128fb_switch_backlight(sc, param->curval); 441 return 0; 442 } 443 return EPASSTHROUGH; 444 case WSDISPLAYIO_GET_EDID: { 445 struct wsdisplayio_edid_info *d = data; 446 return wsdisplayio_get_edid(sc->sc_dev, d); 447 } 448 } 449 return EPASSTHROUGH; 450 } 451 452 static paddr_t 453 r128fb_mmap(void *v, void *vs, off_t offset, int prot) 454 { 455 struct vcons_data *vd = v; 456 struct r128fb_softc *sc = vd->cookie; 457 paddr_t pa; 458 459 /* 'regular' framebuffer mmap()ing */ 460 if (offset < sc->sc_fbsize) { 461 pa = bus_space_mmap(sc->sc_memt, sc->sc_fb + offset, 0, prot, 462 BUS_SPACE_MAP_LINEAR); 463 return pa; 464 } 465 466 /* 467 * restrict all other mappings to processes with superuser privileges 468 * or the kernel itself 469 */ 470 if (kauth_authorize_machdep(kauth_cred_get(), KAUTH_MACHDEP_UNMANAGEDMEM, 471 NULL, NULL, NULL, NULL) != 0) { 472 aprint_normal("%s: mmap() rejected.\n", 473 device_xname(sc->sc_dev)); 474 return -1; 475 } 476 477 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 478 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 479 BUS_SPACE_MAP_LINEAR); 480 return pa; 481 } 482 483 if ((offset >= sc->sc_reg) && 484 (offset < (sc->sc_reg + sc->sc_regsize))) { 485 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 486 BUS_SPACE_MAP_LINEAR); 487 return pa; 488 } 489 490 #ifdef PCI_MAGIC_IO_RANGE 491 /* allow mapping of IO space */ 492 if ((offset >= PCI_MAGIC_IO_RANGE) && 493 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 494 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 495 0, prot, BUS_SPACE_MAP_LINEAR); 496 return pa; 497 } 498 #endif 499 500 #ifdef OFB_ALLOW_OTHERS 501 if (offset >= 0x80000000) { 502 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 503 BUS_SPACE_MAP_LINEAR); 504 return pa; 505 } 506 #endif 507 return -1; 508 } 509 510 static void 511 r128fb_init_screen(void *cookie, struct vcons_screen *scr, 512 int existing, long *defattr) 513 { 514 struct r128fb_softc *sc = cookie; 515 struct rasops_info *ri = &scr->scr_ri; 516 517 ri->ri_depth = sc->sc_depth; 518 ri->ri_width = sc->sc_width; 519 ri->ri_height = sc->sc_height; 520 ri->ri_stride = sc->sc_stride; 521 ri->ri_flg = RI_CENTER; 522 if (sc->sc_depth == 8) 523 ri->ri_flg |= RI_8BIT_IS_RGB | RI_ENABLE_ALPHA; 524 525 rasops_init(ri, 0, 0); 526 ri->ri_caps = WSSCREEN_WSCOLORS; 527 #ifdef VCONS_DRAW_INTR 528 scr->scr_flags |= VCONS_DONT_READ; 529 #endif 530 531 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 532 sc->sc_width / ri->ri_font->fontwidth); 533 534 ri->ri_hw = scr; 535 ri->ri_ops.copyrows = r128fb_copyrows; 536 ri->ri_ops.copycols = r128fb_copycols; 537 ri->ri_ops.eraserows = r128fb_eraserows; 538 ri->ri_ops.erasecols = r128fb_erasecols; 539 ri->ri_ops.cursor = r128fb_cursor; 540 if (FONT_IS_ALPHA(ri->ri_font)) { 541 ri->ri_ops.putchar = r128fb_putchar_aa; 542 ri->ri_ops.allocattr(ri, WS_DEFAULT_FG, WS_DEFAULT_BG, 543 0, &sc->sc_gc.gc_attr); 544 } else 545 ri->ri_ops.putchar = r128fb_putchar; 546 } 547 548 static int 549 r128fb_putcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 550 { 551 u_char *r, *g, *b; 552 u_int index = cm->index; 553 u_int count = cm->count; 554 int i, error; 555 u_char rbuf[256], gbuf[256], bbuf[256]; 556 557 #ifdef R128FB_DEBUG 558 aprint_debug("putcmap: %d %d\n",index, count); 559 #endif 560 if (cm->index >= 256 || cm->count > 256 || 561 (cm->index + cm->count) > 256) 562 return EINVAL; 563 error = copyin(cm->red, &rbuf[index], count); 564 if (error) 565 return error; 566 error = copyin(cm->green, &gbuf[index], count); 567 if (error) 568 return error; 569 error = copyin(cm->blue, &bbuf[index], count); 570 if (error) 571 return error; 572 573 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 574 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 575 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 576 577 r = &sc->sc_cmap_red[index]; 578 g = &sc->sc_cmap_green[index]; 579 b = &sc->sc_cmap_blue[index]; 580 581 for (i = 0; i < count; i++) { 582 r128fb_putpalreg(sc, index, *r, *g, *b); 583 index++; 584 r++, g++, b++; 585 } 586 return 0; 587 } 588 589 static int 590 r128fb_getcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 591 { 592 u_int index = cm->index; 593 u_int count = cm->count; 594 int error; 595 596 if (index >= 255 || count > 256 || index + count > 256) 597 return EINVAL; 598 599 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 600 if (error) 601 return error; 602 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 603 if (error) 604 return error; 605 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 606 if (error) 607 return error; 608 609 return 0; 610 } 611 612 static void 613 r128fb_restore_palette(struct r128fb_softc *sc) 614 { 615 int i; 616 617 for (i = 0; i < (1 << sc->sc_depth); i++) { 618 r128fb_putpalreg(sc, i, sc->sc_cmap_red[i], 619 sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); 620 } 621 } 622 623 static int 624 r128fb_putpalreg(struct r128fb_softc *sc, uint8_t idx, uint8_t r, uint8_t g, 625 uint8_t b) 626 { 627 uint32_t reg; 628 629 /* whack the DAC */ 630 reg = (r << 16) | (g << 8) | b; 631 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_INDEX, idx); 632 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_DATA, reg); 633 return 0; 634 } 635 636 static void 637 r128fb_init(struct r128fb_softc *sc) 638 { 639 uint32_t datatype, d, reg; 640 641 r128fb_flush_engine(sc); 642 643 r128fb_wait(sc, 9); 644 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_OFFSET, 0); 645 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_OFFSET, 0); 646 /* pitch is in units of 8 pixels */ 647 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_PITCH, 648 sc->sc_width >> 3); 649 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_AUX_SC_CNTL, 0); 650 bus_space_write_4(sc->sc_memt, sc->sc_regh, 651 R128_DEFAULT_SC_BOTTOM_RIGHT, 652 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 653 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_TOP_LEFT, 0); 654 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_BOTTOM_RIGHT, 655 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 656 bus_space_write_4(sc->sc_memt, sc->sc_regh, 657 R128_DEFAULT_SC_BOTTOM_RIGHT, 658 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 659 660 #if 0 661 #if BYTE_ORDER == BIG_ENDIAN 662 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 663 R128_HOST_BIG_ENDIAN_EN); 664 #else 665 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 0); 666 #endif 667 #endif 668 r128fb_wait(sc, 7); 669 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_PITCH, 670 sc->sc_width >> 3); 671 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_PITCH, 672 sc->sc_width >> 3); 673 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_OFFSET, 0); 674 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_OFFSET, 0); 675 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_WRITE_MASK, 676 0xffffffff); 677 678 switch (sc->sc_depth) { 679 case 8: 680 datatype = R128_GMC_DST_8BPP_CI; 681 d = R128_CRTC_COLOR_8BIT; 682 break; 683 case 15: 684 datatype = R128_GMC_DST_15BPP; 685 d = R128_CRTC_COLOR_15BIT; 686 break; 687 case 16: 688 datatype = R128_GMC_DST_16BPP; 689 d = R128_CRTC_COLOR_16BIT; 690 break; 691 case 24: 692 datatype = R128_GMC_DST_24BPP; 693 d = R128_CRTC_COLOR_24BIT; 694 break; 695 case 32: 696 datatype = R128_GMC_DST_32BPP; 697 d = R128_CRTC_COLOR_32BIT; 698 break; 699 default: 700 aprint_error("%s: unsupported depth %d\n", 701 device_xname(sc->sc_dev), sc->sc_depth); 702 return; 703 } 704 sc->sc_master_cntl = R128_GMC_CLR_CMP_CNTL_DIS | 705 R128_GMC_AUX_CLIP_DIS | datatype; 706 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_CRTC_GEN_CNTL); 707 DPRINTF("depth: %d\n", reg & R128_CRTC_PIX_WIDTH); 708 reg &= ~R128_CRTC_PIX_WIDTH; 709 reg |= d; 710 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_GEN_CNTL, reg); 711 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_PITCH, sc->sc_width >> 3); 712 r128fb_flush_engine(sc); 713 } 714 715 static void 716 r128fb_rectfill(struct r128fb_softc *sc, int x, int y, int wi, int he, 717 uint32_t colour) 718 { 719 720 r128fb_wait(sc, 5); 721 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 722 R128_GMC_BRUSH_SOLID_COLOR | 723 R128_GMC_SRC_DATATYPE_COLOR | 724 R128_ROP3_P | 725 sc->sc_master_cntl); 726 727 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_BRUSH_FRGD_CLR, 728 colour); 729 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, 730 R128_DST_X_LEFT_TO_RIGHT | R128_DST_Y_TOP_TO_BOTTOM); 731 /* now feed it coordinates */ 732 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 733 (x << 16) | y); 734 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 735 (wi << 16) | he); 736 } 737 738 static void 739 r128fb_bitblt(void *cookie, int xs, int ys, int xd, int yd, 740 int wi, int he, int rop) 741 { 742 struct r128fb_softc *sc = cookie; 743 uint32_t dp_cntl = 0; 744 745 r128fb_wait(sc, 5); 746 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 747 R128_GMC_BRUSH_SOLID_COLOR | 748 R128_GMC_SRC_DATATYPE_COLOR | 749 rop | 750 R128_DP_SRC_SOURCE_MEMORY | 751 sc->sc_master_cntl); 752 753 if (yd <= ys) { 754 dp_cntl = R128_DST_Y_TOP_TO_BOTTOM; 755 } else { 756 ys += he - 1; 757 yd += he - 1; 758 } 759 if (xd <= xs) { 760 dp_cntl |= R128_DST_X_LEFT_TO_RIGHT; 761 } else { 762 xs += wi - 1; 763 xd += wi - 1; 764 } 765 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, dp_cntl); 766 767 /* now feed it coordinates */ 768 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 769 (xs << 16) | ys); 770 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 771 (xd << 16) | yd); 772 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 773 (wi << 16) | he); 774 } 775 776 static void 777 r128fb_cursor(void *cookie, int on, int row, int col) 778 { 779 struct rasops_info *ri = cookie; 780 struct vcons_screen *scr = ri->ri_hw; 781 struct r128fb_softc *sc = scr->scr_cookie; 782 int x, y, wi, he; 783 784 wi = ri->ri_font->fontwidth; 785 he = ri->ri_font->fontheight; 786 787 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 788 x = ri->ri_ccol * wi + ri->ri_xorigin; 789 y = ri->ri_crow * he + ri->ri_yorigin; 790 if (ri->ri_flg & RI_CURSOR) { 791 r128fb_bitblt(sc, x, y, x, y, wi, he, R128_ROP3_Dn); 792 ri->ri_flg &= ~RI_CURSOR; 793 } 794 ri->ri_crow = row; 795 ri->ri_ccol = col; 796 if (on) { 797 x = ri->ri_ccol * wi + ri->ri_xorigin; 798 y = ri->ri_crow * he + ri->ri_yorigin; 799 r128fb_bitblt(sc, x, y, x, y, wi, he, R128_ROP3_Dn); 800 ri->ri_flg |= RI_CURSOR; 801 } 802 } else { 803 scr->scr_ri.ri_crow = row; 804 scr->scr_ri.ri_ccol = col; 805 scr->scr_ri.ri_flg &= ~RI_CURSOR; 806 } 807 808 } 809 810 static void 811 r128fb_putchar(void *cookie, int row, int col, u_int c, long attr) 812 { 813 struct rasops_info *ri = cookie; 814 struct wsdisplay_font *font = PICK_FONT(ri, c); 815 struct vcons_screen *scr = ri->ri_hw; 816 struct r128fb_softc *sc = scr->scr_cookie; 817 void *data; 818 uint32_t fg, bg; 819 int i, x, y, wi, he, offset; 820 821 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 822 return; 823 824 if (!CHAR_IN_FONT(c, font)) 825 return; 826 827 wi = font->fontwidth; 828 he = font->fontheight; 829 830 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 831 fg = ri->ri_devcmap[(attr >> 24) & 0xf]; 832 x = ri->ri_xorigin + col * wi; 833 y = ri->ri_yorigin + row * he; 834 835 if (c == 0x20) { 836 r128fb_rectfill(sc, x, y, wi, he, bg); 837 return; 838 } 839 840 data = WSFONT_GLYPH(c, font); 841 842 r128fb_wait(sc, 8); 843 844 bus_space_write_4(sc->sc_memt, sc->sc_regh, 845 R128_DP_GUI_MASTER_CNTL, 846 R128_GMC_BRUSH_SOLID_COLOR | 847 R128_GMC_SRC_DATATYPE_MONO_FG_BG | 848 R128_ROP3_S | 849 R128_DP_SRC_SOURCE_HOST_DATA | 850 R128_GMC_DST_CLIPPING | 851 sc->sc_master_cntl); 852 853 bus_space_write_4(sc->sc_memt, sc->sc_regh, 854 R128_DP_CNTL, 855 R128_DST_Y_TOP_TO_BOTTOM | 856 R128_DST_X_LEFT_TO_RIGHT); 857 858 bus_space_write_4(sc->sc_memt, sc->sc_regh, 859 R128_DP_SRC_FRGD_CLR, fg); 860 bus_space_write_4(sc->sc_memt, sc->sc_regh, 861 R128_DP_SRC_BKGD_CLR, bg); 862 863 /* 864 * The Rage 128 doesn't have anything to skip pixels 865 * when colour expanding but all coordinates 866 * are signed so we just clip the leading bytes and 867 * trailing bits away 868 */ 869 bus_space_write_4(sc->sc_memt, sc->sc_regh, 870 R128_SC_RIGHT, x + wi - 1); 871 bus_space_write_4(sc->sc_memt, sc->sc_regh, 872 R128_SC_LEFT, x); 873 874 /* needed? */ 875 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 0); 876 877 offset = 32 - (font->stride << 3); 878 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 879 ((x - offset) << 16) | y); 880 bus_space_write_4(sc->sc_memt, sc->sc_regh, 881 R128_DST_WIDTH_HEIGHT, (32 << 16) | he); 882 883 r128fb_wait(sc, he); 884 switch (font->stride) { 885 case 1: { 886 uint8_t *data8 = data; 887 uint32_t reg; 888 for (i = 0; i < he; i++) { 889 reg = *data8; 890 bus_space_write_stream_4(sc->sc_memt, 891 sc->sc_regh, R128_HOST_DATA0, reg); 892 data8++; 893 } 894 break; 895 } 896 case 2: { 897 uint16_t *data16 = data; 898 uint32_t reg; 899 for (i = 0; i < he; i++) { 900 reg = *data16; 901 bus_space_write_stream_4(sc->sc_memt, 902 sc->sc_regh, R128_HOST_DATA0, reg); 903 data16++; 904 } 905 break; 906 } 907 } 908 } 909 910 static void 911 r128fb_putchar_aa(void *cookie, int row, int col, u_int c, long attr) 912 { 913 struct rasops_info *ri = cookie; 914 struct wsdisplay_font *font = PICK_FONT(ri, c); 915 struct vcons_screen *scr = ri->ri_hw; 916 struct r128fb_softc *sc = scr->scr_cookie; 917 uint32_t bg, latch = 0, bg8, fg8, pixel; 918 int i, x, y, wi, he, r, g, b, aval; 919 int r1, g1, b1, r0, g0, b0, fgo, bgo; 920 uint8_t *data8; 921 int rv, cnt = 0; 922 923 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 924 return; 925 926 if (!CHAR_IN_FONT(c, font)) 927 return; 928 929 wi = font->fontwidth; 930 he = font->fontheight; 931 932 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 933 x = ri->ri_xorigin + col * wi; 934 y = ri->ri_yorigin + row * he; 935 if (c == 0x20) { 936 r128fb_rectfill(sc, x, y, wi, he, bg); 937 return; 938 } 939 940 rv = glyphcache_try(&sc->sc_gc, c, x, y, attr); 941 if (rv == GC_OK) 942 return; 943 944 data8 = WSFONT_GLYPH(c, font); 945 946 r128fb_wait(sc, 5); 947 bus_space_write_4(sc->sc_memt, sc->sc_regh, 948 R128_DP_GUI_MASTER_CNTL, 949 R128_GMC_BRUSH_SOLID_COLOR | 950 R128_GMC_SRC_DATATYPE_COLOR | 951 R128_ROP3_S | 952 R128_DP_SRC_SOURCE_HOST_DATA | 953 sc->sc_master_cntl); 954 955 bus_space_write_4(sc->sc_memt, sc->sc_regh, 956 R128_DP_CNTL, 957 R128_DST_Y_TOP_TO_BOTTOM | 958 R128_DST_X_LEFT_TO_RIGHT); 959 960 /* needed? */ 961 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 0); 962 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 963 (x << 16) | y); 964 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 965 (wi << 16) | he); 966 967 /* 968 * we need the RGB colours here, so get offsets into rasops_cmap 969 */ 970 fgo = ((attr >> 24) & 0xf) * 3; 971 bgo = ((attr >> 16) & 0xf) * 3; 972 973 r0 = rasops_cmap[bgo]; 974 r1 = rasops_cmap[fgo]; 975 g0 = rasops_cmap[bgo + 1]; 976 g1 = rasops_cmap[fgo + 1]; 977 b0 = rasops_cmap[bgo + 2]; 978 b1 = rasops_cmap[fgo + 2]; 979 #define R3G3B2(r, g, b) ((r & 0xe0) | ((g >> 3) & 0x1c) | (b >> 6)) 980 bg8 = R3G3B2(r0, g0, b0); 981 fg8 = R3G3B2(r1, g1, b1); 982 983 r128fb_wait(sc, 16); 984 985 for (i = 0; i < ri->ri_fontscale; i++) { 986 aval = *data8; 987 if (aval == 0) { 988 pixel = bg8; 989 } else if (aval == 255) { 990 pixel = fg8; 991 } else { 992 r = aval * r1 + (255 - aval) * r0; 993 g = aval * g1 + (255 - aval) * g0; 994 b = aval * b1 + (255 - aval) * b0; 995 pixel = ((r & 0xe000) >> 8) | 996 ((g & 0xe000) >> 11) | 997 ((b & 0xc000) >> 14); 998 } 999 latch = (latch << 8) | pixel; 1000 /* write in 32bit chunks */ 1001 if ((i & 3) == 3) { 1002 bus_space_write_stream_4(sc->sc_memt, sc->sc_regh, 1003 R128_HOST_DATA0, latch); 1004 /* 1005 * not strictly necessary, old data should be shifted 1006 * out 1007 */ 1008 latch = 0; 1009 cnt++; 1010 if (cnt > 15) { 1011 r128fb_wait(sc, 16); 1012 cnt = 0; 1013 } 1014 } 1015 data8++; 1016 } 1017 /* if we have pixels left in latch write them out */ 1018 if ((i & 3) != 0) { 1019 latch = latch << ((4 - (i & 3)) << 3); 1020 bus_space_write_stream_4(sc->sc_memt, sc->sc_regh, 1021 R128_HOST_DATA0, latch); 1022 } 1023 if (rv == GC_ADD) { 1024 glyphcache_add(&sc->sc_gc, c, x, y); 1025 } 1026 } 1027 1028 static void 1029 r128fb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 1030 { 1031 struct rasops_info *ri = cookie; 1032 struct vcons_screen *scr = ri->ri_hw; 1033 struct r128fb_softc *sc = scr->scr_cookie; 1034 int32_t xs, xd, y, width, height; 1035 1036 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1037 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 1038 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 1039 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1040 width = ri->ri_font->fontwidth * ncols; 1041 height = ri->ri_font->fontheight; 1042 r128fb_bitblt(sc, xs, y, xd, y, width, height, R128_ROP3_S); 1043 } 1044 } 1045 1046 static void 1047 r128fb_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr) 1048 { 1049 struct rasops_info *ri = cookie; 1050 struct vcons_screen *scr = ri->ri_hw; 1051 struct r128fb_softc *sc = scr->scr_cookie; 1052 int32_t x, y, width, height, fg, bg, ul; 1053 1054 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1055 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 1056 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1057 width = ri->ri_font->fontwidth * ncols; 1058 height = ri->ri_font->fontheight; 1059 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 1060 1061 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 1062 } 1063 } 1064 1065 static void 1066 r128fb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 1067 { 1068 struct rasops_info *ri = cookie; 1069 struct vcons_screen *scr = ri->ri_hw; 1070 struct r128fb_softc *sc = scr->scr_cookie; 1071 int32_t x, ys, yd, width, height; 1072 1073 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1074 x = ri->ri_xorigin; 1075 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 1076 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 1077 width = ri->ri_emuwidth; 1078 height = ri->ri_font->fontheight * nrows; 1079 r128fb_bitblt(sc, x, ys, x, yd, width, height, R128_ROP3_S); 1080 } 1081 } 1082 1083 static void 1084 r128fb_eraserows(void *cookie, int row, int nrows, long fillattr) 1085 { 1086 struct rasops_info *ri = cookie; 1087 struct vcons_screen *scr = ri->ri_hw; 1088 struct r128fb_softc *sc = scr->scr_cookie; 1089 int32_t x, y, width, height, fg, bg, ul; 1090 1091 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1092 x = ri->ri_xorigin; 1093 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1094 width = ri->ri_emuwidth; 1095 height = ri->ri_font->fontheight * nrows; 1096 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 1097 1098 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 1099 } 1100 } 1101 1102 static void 1103 r128fb_set_backlight(struct r128fb_softc *sc, int level) 1104 { 1105 uint32_t reg; 1106 1107 /* 1108 * should we do nothing when backlight is off, should we just store the 1109 * level and use it when turning back on or should we just flip sc_bl_on 1110 * and turn the backlight on? 1111 * For now turn it on so a crashed screensaver can't get the user stuck 1112 * with a dark screen as long as hotkeys work 1113 */ 1114 if (level > 255) level = 255; 1115 if (level < 0) level = 0; 1116 if (level == sc->sc_bl_level) 1117 return; 1118 sc->sc_bl_level = level; 1119 if (sc->sc_bl_on == 0) 1120 sc->sc_bl_on = 1; 1121 level = 255 - level; 1122 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 1123 reg &= ~R128_LEVEL_MASK; 1124 reg |= (level << R128_LEVEL_SHIFT); 1125 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 1126 DPRINTF("backlight level: %d reg %08x\n", level, reg); 1127 } 1128 1129 static void 1130 r128fb_switch_backlight(struct r128fb_softc *sc, int on) 1131 { 1132 uint32_t reg; 1133 int level; 1134 1135 if (on == sc->sc_bl_on) 1136 return; 1137 sc->sc_bl_on = on; 1138 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 1139 reg &= ~R128_LEVEL_MASK; 1140 level = on ? 255 - sc->sc_bl_level : 255; 1141 reg |= level << R128_LEVEL_SHIFT; 1142 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 1143 DPRINTF("backlight state: %d reg %08x\n", on, reg); 1144 } 1145 1146 1147 static void 1148 r128fb_brightness_up(device_t dev) 1149 { 1150 struct r128fb_softc *sc = device_private(dev); 1151 1152 r128fb_set_backlight(sc, sc->sc_bl_level + 8); 1153 } 1154 1155 static void 1156 r128fb_brightness_down(device_t dev) 1157 { 1158 struct r128fb_softc *sc = device_private(dev); 1159 1160 r128fb_set_backlight(sc, sc->sc_bl_level - 8); 1161 } 1162
Indexes created Sun Sep 28 16:09:52 GMT 2025