r128fb.c revision 1.22.6.4
1 /* $NetBSD: r128fb.c,v 1.22.6.4 2012/04/29 23:04:58 mrg 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 1.22.6.4 2012/04/29 23:04:58 mrg 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 -= 100; 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 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 311 glyphcache_init(&sc->sc_gc, sc->sc_height + 5, 312 (0x800000 / sc->sc_stride) - sc->sc_height - 5, 313 sc->sc_width, 314 ri->ri_font->fontwidth, 315 ri->ri_font->fontheight, 316 defattr); 317 } 318 319 j = 0; 320 rasops_get_cmap(ri, cmap, sizeof(cmap)); 321 for (i = 0; i < 256; i++) { 322 sc->sc_cmap_red[i] = cmap[j]; 323 sc->sc_cmap_green[i] = cmap[j + 1]; 324 sc->sc_cmap_blue[i] = cmap[j + 2]; 325 r128fb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]); 326 j += 3; 327 } 328 329 /* no suspend/resume support yet */ 330 pmf_device_register(sc->sc_dev, NULL, NULL); 331 332 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 333 DPRINTF("R128_LVDS_GEN_CNTL: %08x\n", reg); 334 if (reg & R128_LVDS_ON) { 335 sc->sc_have_backlight = 1; 336 sc->sc_bl_on = 1; 337 sc->sc_bl_level = 255 - 338 ((reg & R128_LEVEL_MASK) >> R128_LEVEL_SHIFT); 339 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_UP, 340 r128fb_brightness_up, TRUE); 341 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_DOWN, 342 r128fb_brightness_down, TRUE); 343 aprint_verbose("%s: LVDS output is active, enabling backlight" 344 " control\n", device_xname(self)); 345 } else 346 sc->sc_have_backlight = 0; 347 348 aa.console = is_console; 349 aa.scrdata = &sc->sc_screenlist; 350 aa.accessops = &r128fb_accessops; 351 aa.accesscookie = &sc->vd; 352 353 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 354 } 355 356 static int 357 r128fb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 358 struct lwp *l) 359 { 360 struct vcons_data *vd = v; 361 struct r128fb_softc *sc = vd->cookie; 362 struct wsdisplay_fbinfo *wdf; 363 struct vcons_screen *ms = vd->active; 364 struct wsdisplay_param *param; 365 366 switch (cmd) { 367 case WSDISPLAYIO_GTYPE: 368 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 369 return 0; 370 371 /* PCI config read/write passthrough. */ 372 case PCI_IOC_CFGREAD: 373 case PCI_IOC_CFGWRITE: 374 return pci_devioctl(sc->sc_pc, sc->sc_pcitag, 375 cmd, data, flag, l); 376 377 case WSDISPLAYIO_GET_BUSID: 378 return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc, sc->sc_pcitag, data); 379 380 case WSDISPLAYIO_GINFO: 381 if (ms == NULL) 382 return ENODEV; 383 wdf = (void *)data; 384 wdf->height = ms->scr_ri.ri_height; 385 wdf->width = ms->scr_ri.ri_width; 386 wdf->depth = ms->scr_ri.ri_depth; 387 wdf->cmsize = 256; 388 return 0; 389 390 case WSDISPLAYIO_GETCMAP: 391 return r128fb_getcmap(sc, 392 (struct wsdisplay_cmap *)data); 393 394 case WSDISPLAYIO_PUTCMAP: 395 return r128fb_putcmap(sc, 396 (struct wsdisplay_cmap *)data); 397 398 case WSDISPLAYIO_LINEBYTES: 399 *(u_int *)data = sc->sc_stride; 400 return 0; 401 402 case WSDISPLAYIO_SMODE: { 403 int new_mode = *(int*)data; 404 if (new_mode != sc->sc_mode) { 405 sc->sc_mode = new_mode; 406 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 407 r128fb_init(sc); 408 r128fb_restore_palette(sc); 409 glyphcache_wipe(&sc->sc_gc); 410 r128fb_rectfill(sc, 0, 0, sc->sc_width, 411 sc->sc_height, ms->scr_ri.ri_devcmap[ 412 (ms->scr_defattr >> 16) & 0xff]); 413 vcons_redraw_screen(ms); 414 } 415 } 416 } 417 return 0; 418 419 case WSDISPLAYIO_GETPARAM: 420 param = (struct wsdisplay_param *)data; 421 if (sc->sc_have_backlight == 0) 422 return EPASSTHROUGH; 423 switch (param->param) { 424 case WSDISPLAYIO_PARAM_BRIGHTNESS: 425 param->min = 0; 426 param->max = 255; 427 param->curval = sc->sc_bl_level; 428 return 0; 429 case WSDISPLAYIO_PARAM_BACKLIGHT: 430 param->min = 0; 431 param->max = 1; 432 param->curval = sc->sc_bl_on; 433 return 0; 434 } 435 return EPASSTHROUGH; 436 437 case WSDISPLAYIO_SETPARAM: 438 param = (struct wsdisplay_param *)data; 439 if (sc->sc_have_backlight == 0) 440 return EPASSTHROUGH; 441 switch (param->param) { 442 case WSDISPLAYIO_PARAM_BRIGHTNESS: 443 r128fb_set_backlight(sc, param->curval); 444 return 0; 445 case WSDISPLAYIO_PARAM_BACKLIGHT: 446 r128fb_switch_backlight(sc, param->curval); 447 return 0; 448 } 449 return EPASSTHROUGH; 450 case WSDISPLAYIO_GET_EDID: { 451 struct wsdisplayio_edid_info *d = data; 452 return wsdisplayio_get_edid(sc->sc_dev, d); 453 } 454 } 455 return EPASSTHROUGH; 456 } 457 458 static paddr_t 459 r128fb_mmap(void *v, void *vs, off_t offset, int prot) 460 { 461 struct vcons_data *vd = v; 462 struct r128fb_softc *sc = vd->cookie; 463 paddr_t pa; 464 465 /* 'regular' framebuffer mmap()ing */ 466 if (offset < sc->sc_fbsize) { 467 pa = bus_space_mmap(sc->sc_memt, sc->sc_fb + offset, 0, prot, 468 BUS_SPACE_MAP_LINEAR); 469 return pa; 470 } 471 472 /* 473 * restrict all other mappings to processes with superuser privileges 474 * or the kernel itself 475 */ 476 if (kauth_authorize_machdep(kauth_cred_get(), KAUTH_MACHDEP_UNMANAGEDMEM, 477 NULL, NULL, NULL, NULL) != 0) { 478 aprint_normal("%s: mmap() rejected.\n", 479 device_xname(sc->sc_dev)); 480 return -1; 481 } 482 483 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 484 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 485 BUS_SPACE_MAP_LINEAR); 486 return pa; 487 } 488 489 if ((offset >= sc->sc_reg) && 490 (offset < (sc->sc_reg + sc->sc_regsize))) { 491 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 492 BUS_SPACE_MAP_LINEAR); 493 return pa; 494 } 495 496 #ifdef PCI_MAGIC_IO_RANGE 497 /* allow mapping of IO space */ 498 if ((offset >= PCI_MAGIC_IO_RANGE) && 499 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 500 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 501 0, prot, BUS_SPACE_MAP_LINEAR); 502 return pa; 503 } 504 #endif 505 506 #ifdef OFB_ALLOW_OTHERS 507 if (offset >= 0x80000000) { 508 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 509 BUS_SPACE_MAP_LINEAR); 510 return pa; 511 } 512 #endif 513 return -1; 514 } 515 516 static void 517 r128fb_init_screen(void *cookie, struct vcons_screen *scr, 518 int existing, long *defattr) 519 { 520 struct r128fb_softc *sc = cookie; 521 struct rasops_info *ri = &scr->scr_ri; 522 523 ri->ri_depth = sc->sc_depth; 524 ri->ri_width = sc->sc_width; 525 ri->ri_height = sc->sc_height; 526 ri->ri_stride = sc->sc_stride; 527 ri->ri_flg = RI_CENTER; 528 if (sc->sc_depth == 8) 529 ri->ri_flg |= RI_8BIT_IS_RGB | RI_ENABLE_ALPHA; 530 531 rasops_init(ri, 0, 0); 532 ri->ri_caps = WSSCREEN_WSCOLORS; 533 #ifdef VCONS_DRAW_INTR 534 scr->scr_flags |= VCONS_DONT_READ; 535 #endif 536 537 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 538 sc->sc_width / ri->ri_font->fontwidth); 539 540 ri->ri_hw = scr; 541 ri->ri_ops.copyrows = r128fb_copyrows; 542 ri->ri_ops.copycols = r128fb_copycols; 543 ri->ri_ops.eraserows = r128fb_eraserows; 544 ri->ri_ops.erasecols = r128fb_erasecols; 545 ri->ri_ops.cursor = r128fb_cursor; 546 if (FONT_IS_ALPHA(ri->ri_font)) { 547 ri->ri_ops.putchar = r128fb_putchar_aa; 548 ri->ri_ops.allocattr(ri, WS_DEFAULT_FG, WS_DEFAULT_BG, 549 0, &sc->sc_gc.gc_attr); 550 } else 551 ri->ri_ops.putchar = r128fb_putchar; 552 } 553 554 static int 555 r128fb_putcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 556 { 557 u_char *r, *g, *b; 558 u_int index = cm->index; 559 u_int count = cm->count; 560 int i, error; 561 u_char rbuf[256], gbuf[256], bbuf[256]; 562 563 #ifdef R128FB_DEBUG 564 aprint_debug("putcmap: %d %d\n",index, count); 565 #endif 566 if (cm->index >= 256 || cm->count > 256 || 567 (cm->index + cm->count) > 256) 568 return EINVAL; 569 error = copyin(cm->red, &rbuf[index], count); 570 if (error) 571 return error; 572 error = copyin(cm->green, &gbuf[index], count); 573 if (error) 574 return error; 575 error = copyin(cm->blue, &bbuf[index], count); 576 if (error) 577 return error; 578 579 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 580 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 581 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 582 583 r = &sc->sc_cmap_red[index]; 584 g = &sc->sc_cmap_green[index]; 585 b = &sc->sc_cmap_blue[index]; 586 587 for (i = 0; i < count; i++) { 588 r128fb_putpalreg(sc, index, *r, *g, *b); 589 index++; 590 r++, g++, b++; 591 } 592 return 0; 593 } 594 595 static int 596 r128fb_getcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 597 { 598 u_int index = cm->index; 599 u_int count = cm->count; 600 int error; 601 602 if (index >= 255 || count > 256 || index + count > 256) 603 return EINVAL; 604 605 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 606 if (error) 607 return error; 608 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 609 if (error) 610 return error; 611 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 612 if (error) 613 return error; 614 615 return 0; 616 } 617 618 static void 619 r128fb_restore_palette(struct r128fb_softc *sc) 620 { 621 int i; 622 623 for (i = 0; i < (1 << sc->sc_depth); i++) { 624 r128fb_putpalreg(sc, i, sc->sc_cmap_red[i], 625 sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); 626 } 627 } 628 629 static int 630 r128fb_putpalreg(struct r128fb_softc *sc, uint8_t idx, uint8_t r, uint8_t g, 631 uint8_t b) 632 { 633 uint32_t reg; 634 635 /* whack the DAC */ 636 reg = (r << 16) | (g << 8) | b; 637 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_INDEX, idx); 638 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_DATA, reg); 639 return 0; 640 } 641 642 static void 643 r128fb_init(struct r128fb_softc *sc) 644 { 645 uint32_t datatype, d, reg; 646 647 r128fb_flush_engine(sc); 648 649 r128fb_wait(sc, 9); 650 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_OFFSET, 0); 651 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_OFFSET, 0); 652 /* pitch is in units of 8 pixels */ 653 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_PITCH, 654 sc->sc_width >> 3); 655 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_AUX_SC_CNTL, 0); 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 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_TOP_LEFT, 0); 660 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_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, 663 R128_DEFAULT_SC_BOTTOM_RIGHT, 664 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 665 666 #if 0 667 #if BYTE_ORDER == BIG_ENDIAN 668 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 669 R128_HOST_BIG_ENDIAN_EN); 670 #else 671 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 0); 672 #endif 673 #endif 674 r128fb_wait(sc, 7); 675 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_PITCH, 676 sc->sc_width >> 3); 677 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_PITCH, 678 sc->sc_width >> 3); 679 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_OFFSET, 0); 680 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_OFFSET, 0); 681 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_WRITE_MASK, 682 0xffffffff); 683 684 switch (sc->sc_depth) { 685 case 8: 686 datatype = R128_GMC_DST_8BPP_CI; 687 d = R128_CRTC_COLOR_8BIT; 688 break; 689 case 15: 690 datatype = R128_GMC_DST_15BPP; 691 d = R128_CRTC_COLOR_15BIT; 692 break; 693 case 16: 694 datatype = R128_GMC_DST_16BPP; 695 d = R128_CRTC_COLOR_16BIT; 696 break; 697 case 24: 698 datatype = R128_GMC_DST_24BPP; 699 d = R128_CRTC_COLOR_24BIT; 700 break; 701 case 32: 702 datatype = R128_GMC_DST_32BPP; 703 d = R128_CRTC_COLOR_32BIT; 704 break; 705 default: 706 aprint_error("%s: unsupported depth %d\n", 707 device_xname(sc->sc_dev), sc->sc_depth); 708 return; 709 } 710 sc->sc_master_cntl = R128_GMC_CLR_CMP_CNTL_DIS | 711 R128_GMC_AUX_CLIP_DIS | datatype; 712 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_CRTC_GEN_CNTL); 713 DPRINTF("depth: %d\n", reg & R128_CRTC_PIX_WIDTH); 714 reg &= ~R128_CRTC_PIX_WIDTH; 715 reg |= d; 716 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_GEN_CNTL, reg); 717 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_PITCH, sc->sc_width >> 3); 718 r128fb_flush_engine(sc); 719 } 720 721 static void 722 r128fb_rectfill(struct r128fb_softc *sc, int x, int y, int wi, int he, 723 uint32_t colour) 724 { 725 726 r128fb_wait(sc, 5); 727 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 728 R128_GMC_BRUSH_SOLID_COLOR | 729 R128_GMC_SRC_DATATYPE_COLOR | 730 R128_ROP3_P | 731 sc->sc_master_cntl); 732 733 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_BRUSH_FRGD_CLR, 734 colour); 735 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, 736 R128_DST_X_LEFT_TO_RIGHT | R128_DST_Y_TOP_TO_BOTTOM); 737 /* now feed it coordinates */ 738 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 739 (x << 16) | y); 740 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 741 (wi << 16) | he); 742 } 743 744 static void 745 r128fb_bitblt(void *cookie, int xs, int ys, int xd, int yd, 746 int wi, int he, int rop) 747 { 748 struct r128fb_softc *sc = cookie; 749 uint32_t dp_cntl = 0; 750 751 r128fb_wait(sc, 5); 752 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 753 R128_GMC_BRUSH_SOLID_COLOR | 754 R128_GMC_SRC_DATATYPE_COLOR | 755 rop | 756 R128_DP_SRC_SOURCE_MEMORY | 757 sc->sc_master_cntl); 758 759 if (yd <= ys) { 760 dp_cntl = R128_DST_Y_TOP_TO_BOTTOM; 761 } else { 762 ys += he - 1; 763 yd += he - 1; 764 } 765 if (xd <= xs) { 766 dp_cntl |= R128_DST_X_LEFT_TO_RIGHT; 767 } else { 768 xs += wi - 1; 769 xd += wi - 1; 770 } 771 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, dp_cntl); 772 773 /* now feed it coordinates */ 774 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 775 (xs << 16) | ys); 776 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 777 (xd << 16) | yd); 778 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 779 (wi << 16) | he); 780 } 781 782 static void 783 r128fb_cursor(void *cookie, int on, int row, int col) 784 { 785 struct rasops_info *ri = cookie; 786 struct vcons_screen *scr = ri->ri_hw; 787 struct r128fb_softc *sc = scr->scr_cookie; 788 int x, y, wi, he; 789 790 wi = ri->ri_font->fontwidth; 791 he = ri->ri_font->fontheight; 792 793 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 794 x = ri->ri_ccol * wi + ri->ri_xorigin; 795 y = ri->ri_crow * he + ri->ri_yorigin; 796 if (ri->ri_flg & RI_CURSOR) { 797 r128fb_bitblt(sc, x, y, x, y, wi, he, R128_ROP3_Dn); 798 ri->ri_flg &= ~RI_CURSOR; 799 } 800 ri->ri_crow = row; 801 ri->ri_ccol = col; 802 if (on) { 803 x = ri->ri_ccol * wi + ri->ri_xorigin; 804 y = ri->ri_crow * he + ri->ri_yorigin; 805 r128fb_bitblt(sc, x, y, x, y, wi, he, R128_ROP3_Dn); 806 ri->ri_flg |= RI_CURSOR; 807 } 808 } else { 809 scr->scr_ri.ri_crow = row; 810 scr->scr_ri.ri_ccol = col; 811 scr->scr_ri.ri_flg &= ~RI_CURSOR; 812 } 813 814 } 815 816 static void 817 r128fb_putchar(void *cookie, int row, int col, u_int c, long attr) 818 { 819 struct rasops_info *ri = cookie; 820 struct wsdisplay_font *font = PICK_FONT(ri, c); 821 struct vcons_screen *scr = ri->ri_hw; 822 struct r128fb_softc *sc = scr->scr_cookie; 823 void *data; 824 uint32_t fg, bg; 825 int i, x, y, wi, he, offset; 826 827 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 828 return; 829 830 if (!CHAR_IN_FONT(c, font)) 831 return; 832 833 wi = font->fontwidth; 834 he = font->fontheight; 835 836 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 837 fg = ri->ri_devcmap[(attr >> 24) & 0xf]; 838 x = ri->ri_xorigin + col * wi; 839 y = ri->ri_yorigin + row * he; 840 841 if (c == 0x20) { 842 r128fb_rectfill(sc, x, y, wi, he, bg); 843 return; 844 } 845 846 data = WSFONT_GLYPH(c, font); 847 848 r128fb_wait(sc, 8); 849 850 bus_space_write_4(sc->sc_memt, sc->sc_regh, 851 R128_DP_GUI_MASTER_CNTL, 852 R128_GMC_BRUSH_SOLID_COLOR | 853 R128_GMC_SRC_DATATYPE_MONO_FG_BG | 854 R128_ROP3_S | 855 R128_DP_SRC_SOURCE_HOST_DATA | 856 R128_GMC_DST_CLIPPING | 857 sc->sc_master_cntl); 858 859 bus_space_write_4(sc->sc_memt, sc->sc_regh, 860 R128_DP_CNTL, 861 R128_DST_Y_TOP_TO_BOTTOM | 862 R128_DST_X_LEFT_TO_RIGHT); 863 864 bus_space_write_4(sc->sc_memt, sc->sc_regh, 865 R128_DP_SRC_FRGD_CLR, fg); 866 bus_space_write_4(sc->sc_memt, sc->sc_regh, 867 R128_DP_SRC_BKGD_CLR, bg); 868 869 /* 870 * The Rage 128 doesn't have anything to skip pixels 871 * when colour expanding but all coordinates 872 * are signed so we just clip the leading bytes and 873 * trailing bits away 874 */ 875 bus_space_write_4(sc->sc_memt, sc->sc_regh, 876 R128_SC_RIGHT, x + wi - 1); 877 bus_space_write_4(sc->sc_memt, sc->sc_regh, 878 R128_SC_LEFT, x); 879 880 /* needed? */ 881 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 0); 882 883 offset = 32 - (font->stride << 3); 884 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 885 ((x - offset) << 16) | y); 886 bus_space_write_4(sc->sc_memt, sc->sc_regh, 887 R128_DST_WIDTH_HEIGHT, (32 << 16) | he); 888 889 r128fb_wait(sc, he); 890 switch (font->stride) { 891 case 1: { 892 uint8_t *data8 = data; 893 uint32_t reg; 894 for (i = 0; i < he; i++) { 895 reg = *data8; 896 bus_space_write_stream_4(sc->sc_memt, 897 sc->sc_regh, R128_HOST_DATA0, reg); 898 data8++; 899 } 900 break; 901 } 902 case 2: { 903 uint16_t *data16 = data; 904 uint32_t reg; 905 for (i = 0; i < he; i++) { 906 reg = *data16; 907 bus_space_write_stream_4(sc->sc_memt, 908 sc->sc_regh, R128_HOST_DATA0, reg); 909 data16++; 910 } 911 break; 912 } 913 } 914 } 915 916 static void 917 r128fb_putchar_aa(void *cookie, int row, int col, u_int c, long attr) 918 { 919 struct rasops_info *ri = cookie; 920 struct wsdisplay_font *font = PICK_FONT(ri, c); 921 struct vcons_screen *scr = ri->ri_hw; 922 struct r128fb_softc *sc = scr->scr_cookie; 923 uint32_t bg, latch = 0, bg8, fg8, pixel; 924 int i, x, y, wi, he, r, g, b, aval; 925 int r1, g1, b1, r0, g0, b0, fgo, bgo; 926 uint8_t *data8; 927 int rv, cnt = 0; 928 929 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 930 return; 931 932 if (!CHAR_IN_FONT(c, font)) 933 return; 934 935 wi = font->fontwidth; 936 he = font->fontheight; 937 938 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 939 x = ri->ri_xorigin + col * wi; 940 y = ri->ri_yorigin + row * he; 941 if (c == 0x20) { 942 r128fb_rectfill(sc, x, y, wi, he, bg); 943 return; 944 } 945 946 rv = glyphcache_try(&sc->sc_gc, c, x, y, attr); 947 if (rv == GC_OK) 948 return; 949 950 data8 = WSFONT_GLYPH(c, font); 951 952 r128fb_wait(sc, 5); 953 bus_space_write_4(sc->sc_memt, sc->sc_regh, 954 R128_DP_GUI_MASTER_CNTL, 955 R128_GMC_BRUSH_SOLID_COLOR | 956 R128_GMC_SRC_DATATYPE_COLOR | 957 R128_ROP3_S | 958 R128_DP_SRC_SOURCE_HOST_DATA | 959 sc->sc_master_cntl); 960 961 bus_space_write_4(sc->sc_memt, sc->sc_regh, 962 R128_DP_CNTL, 963 R128_DST_Y_TOP_TO_BOTTOM | 964 R128_DST_X_LEFT_TO_RIGHT); 965 966 /* needed? */ 967 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 0); 968 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 969 (x << 16) | y); 970 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 971 (wi << 16) | he); 972 973 /* 974 * we need the RGB colours here, so get offsets into rasops_cmap 975 */ 976 fgo = ((attr >> 24) & 0xf) * 3; 977 bgo = ((attr >> 16) & 0xf) * 3; 978 979 r0 = rasops_cmap[bgo]; 980 r1 = rasops_cmap[fgo]; 981 g0 = rasops_cmap[bgo + 1]; 982 g1 = rasops_cmap[fgo + 1]; 983 b0 = rasops_cmap[bgo + 2]; 984 b1 = rasops_cmap[fgo + 2]; 985 #define R3G3B2(r, g, b) ((r & 0xe0) | ((g >> 3) & 0x1c) | (b >> 6)) 986 bg8 = R3G3B2(r0, g0, b0); 987 fg8 = R3G3B2(r1, g1, b1); 988 989 r128fb_wait(sc, 16); 990 991 for (i = 0; i < ri->ri_fontscale; i++) { 992 aval = *data8; 993 if (aval == 0) { 994 pixel = bg8; 995 } else if (aval == 255) { 996 pixel = fg8; 997 } else { 998 r = aval * r1 + (255 - aval) * r0; 999 g = aval * g1 + (255 - aval) * g0; 1000 b = aval * b1 + (255 - aval) * b0; 1001 pixel = ((r & 0xe000) >> 8) | 1002 ((g & 0xe000) >> 11) | 1003 ((b & 0xc000) >> 14); 1004 } 1005 latch = (latch << 8) | pixel; 1006 /* write in 32bit chunks */ 1007 if ((i & 3) == 3) { 1008 bus_space_write_stream_4(sc->sc_memt, sc->sc_regh, 1009 R128_HOST_DATA0, latch); 1010 /* 1011 * not strictly necessary, old data should be shifted 1012 * out 1013 */ 1014 latch = 0; 1015 cnt++; 1016 if (cnt > 15) { 1017 r128fb_wait(sc, 16); 1018 cnt = 0; 1019 } 1020 } 1021 data8++; 1022 } 1023 /* if we have pixels left in latch write them out */ 1024 if ((i & 3) != 0) { 1025 latch = latch << ((4 - (i & 3)) << 3); 1026 bus_space_write_stream_4(sc->sc_memt, sc->sc_regh, 1027 R128_HOST_DATA0, latch); 1028 } 1029 if (rv == GC_ADD) { 1030 glyphcache_add(&sc->sc_gc, c, x, y); 1031 } 1032 } 1033 1034 static void 1035 r128fb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 1036 { 1037 struct rasops_info *ri = cookie; 1038 struct vcons_screen *scr = ri->ri_hw; 1039 struct r128fb_softc *sc = scr->scr_cookie; 1040 int32_t xs, xd, y, width, height; 1041 1042 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1043 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 1044 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 1045 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1046 width = ri->ri_font->fontwidth * ncols; 1047 height = ri->ri_font->fontheight; 1048 r128fb_bitblt(sc, xs, y, xd, y, width, height, R128_ROP3_S); 1049 } 1050 } 1051 1052 static void 1053 r128fb_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr) 1054 { 1055 struct rasops_info *ri = cookie; 1056 struct vcons_screen *scr = ri->ri_hw; 1057 struct r128fb_softc *sc = scr->scr_cookie; 1058 int32_t x, y, width, height, fg, bg, ul; 1059 1060 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1061 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 1062 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1063 width = ri->ri_font->fontwidth * ncols; 1064 height = ri->ri_font->fontheight; 1065 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 1066 1067 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 1068 } 1069 } 1070 1071 static void 1072 r128fb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 1073 { 1074 struct rasops_info *ri = cookie; 1075 struct vcons_screen *scr = ri->ri_hw; 1076 struct r128fb_softc *sc = scr->scr_cookie; 1077 int32_t x, ys, yd, width, height; 1078 1079 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1080 x = ri->ri_xorigin; 1081 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 1082 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 1083 width = ri->ri_emuwidth; 1084 height = ri->ri_font->fontheight * nrows; 1085 r128fb_bitblt(sc, x, ys, x, yd, width, height, R128_ROP3_S); 1086 } 1087 } 1088 1089 static void 1090 r128fb_eraserows(void *cookie, int row, int nrows, long fillattr) 1091 { 1092 struct rasops_info *ri = cookie; 1093 struct vcons_screen *scr = ri->ri_hw; 1094 struct r128fb_softc *sc = scr->scr_cookie; 1095 int32_t x, y, width, height, fg, bg, ul; 1096 1097 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1098 x = ri->ri_xorigin; 1099 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1100 width = ri->ri_emuwidth; 1101 height = ri->ri_font->fontheight * nrows; 1102 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 1103 1104 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 1105 } 1106 } 1107 1108 static void 1109 r128fb_set_backlight(struct r128fb_softc *sc, int level) 1110 { 1111 uint32_t reg; 1112 1113 /* 1114 * should we do nothing when backlight is off, should we just store the 1115 * level and use it when turning back on or should we just flip sc_bl_on 1116 * and turn the backlight on? 1117 * For now turn it on so a crashed screensaver can't get the user stuck 1118 * with a dark screen as long as hotkeys work 1119 */ 1120 if (level > 255) level = 255; 1121 if (level < 0) level = 0; 1122 if (level == sc->sc_bl_level) 1123 return; 1124 sc->sc_bl_level = level; 1125 if (sc->sc_bl_on == 0) 1126 sc->sc_bl_on = 1; 1127 level = 255 - level; 1128 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 1129 reg &= ~R128_LEVEL_MASK; 1130 reg |= (level << R128_LEVEL_SHIFT); 1131 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 1132 DPRINTF("backlight level: %d reg %08x\n", level, reg); 1133 } 1134 1135 static void 1136 r128fb_switch_backlight(struct r128fb_softc *sc, int on) 1137 { 1138 uint32_t reg; 1139 int level; 1140 1141 if (on == sc->sc_bl_on) 1142 return; 1143 sc->sc_bl_on = on; 1144 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 1145 reg &= ~R128_LEVEL_MASK; 1146 level = on ? 255 - sc->sc_bl_level : 255; 1147 reg |= level << R128_LEVEL_SHIFT; 1148 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 1149 DPRINTF("backlight state: %d reg %08x\n", on, reg); 1150 } 1151 1152 1153 static void 1154 r128fb_brightness_up(device_t dev) 1155 { 1156 struct r128fb_softc *sc = device_private(dev); 1157 1158 r128fb_set_backlight(sc, sc->sc_bl_level + 8); 1159 } 1160 1161 static void 1162 r128fb_brightness_down(device_t dev) 1163 { 1164 struct r128fb_softc *sc = device_private(dev); 1165 1166 r128fb_set_backlight(sc, sc->sc_bl_level - 8); 1167 } 1168
Indexes created Sun Oct 19 02:09:48 GMT 2025