r128fb.c revision 1.25
1 /* $NetBSD: r128fb.c,v 1.25 2012/01/04 08:38:20 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 1.25 2012/01/04 08:38:20 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 59 #include <dev/i2c/i2cvar.h> 60 61 #include "opt_r128fb.h" 62 #include "opt_vcons.h" 63 64 #ifdef R128FB_DEBUG 65 #define DPRINTF printf 66 #else 67 #define DPRINTF while(0) printf 68 #endif 69 70 struct r128fb_softc { 71 device_t sc_dev; 72 73 pci_chipset_tag_t sc_pc; 74 pcitag_t sc_pcitag; 75 76 bus_space_tag_t sc_memt; 77 bus_space_tag_t sc_iot; 78 79 bus_space_handle_t sc_regh; 80 bus_addr_t sc_fb, sc_reg; 81 bus_size_t sc_fbsize, sc_regsize; 82 83 int sc_width, sc_height, sc_depth, sc_stride; 84 int sc_locked, sc_have_backlight, sc_bl_level, sc_bl_on; 85 struct vcons_screen sc_console_screen; 86 struct wsscreen_descr sc_defaultscreen_descr; 87 const struct wsscreen_descr *sc_screens[1]; 88 struct wsscreen_list sc_screenlist; 89 struct vcons_data vd; 90 int sc_mode; 91 u_char sc_cmap_red[256]; 92 u_char sc_cmap_green[256]; 93 u_char sc_cmap_blue[256]; 94 /* engine stuff */ 95 uint32_t sc_master_cntl; 96 }; 97 98 static int r128fb_match(device_t, cfdata_t, void *); 99 static void r128fb_attach(device_t, device_t, void *); 100 101 CFATTACH_DECL_NEW(r128fb, sizeof(struct r128fb_softc), 102 r128fb_match, r128fb_attach, NULL, NULL); 103 104 extern const u_char rasops_cmap[768]; 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(struct r128fb_softc *, 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 char devinfo[256]; 202 struct wsemuldisplaydev_attach_args aa; 203 prop_dictionary_t dict; 204 unsigned long defattr; 205 bool is_console; 206 int i, j; 207 uint32_t reg, flags; 208 uint8_t tmp; 209 210 sc->sc_pc = pa->pa_pc; 211 sc->sc_pcitag = pa->pa_tag; 212 sc->sc_memt = pa->pa_memt; 213 sc->sc_iot = pa->pa_iot; 214 sc->sc_dev = self; 215 216 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 217 aprint_normal(": %s\n", devinfo); 218 219 /* fill in parameters from properties */ 220 dict = device_properties(self); 221 if (!prop_dictionary_get_uint32(dict, "width", &sc->sc_width)) { 222 aprint_error("%s: no width property\n", device_xname(self)); 223 return; 224 } 225 if (!prop_dictionary_get_uint32(dict, "height", &sc->sc_height)) { 226 aprint_error("%s: no height property\n", device_xname(self)); 227 return; 228 } 229 if (!prop_dictionary_get_uint32(dict, "depth", &sc->sc_depth)) { 230 aprint_error("%s: no depth property\n", device_xname(self)); 231 return; 232 } 233 if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->sc_stride)) { 234 aprint_error("%s: no linebytes property\n", 235 device_xname(self)); 236 return; 237 } 238 239 prop_dictionary_get_bool(dict, "is_console", &is_console); 240 241 if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, 0x10, PCI_MAPREG_TYPE_MEM, 242 &sc->sc_fb, &sc->sc_fbsize, &flags)) { 243 aprint_error("%s: failed to map the frame buffer.\n", 244 device_xname(sc->sc_dev)); 245 } 246 247 if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_MEM, 0, 248 &tag, &sc->sc_regh, &sc->sc_reg, &sc->sc_regsize)) { 249 aprint_error("%s: failed to map registers.\n", 250 device_xname(sc->sc_dev)); 251 } 252 253 aprint_normal("%s: %d MB aperture at 0x%08x\n", device_xname(self), 254 (int)(sc->sc_fbsize >> 20), (uint32_t)sc->sc_fb); 255 256 sc->sc_defaultscreen_descr = (struct wsscreen_descr){ 257 "default", 258 0, 0, 259 NULL, 260 8, 16, 261 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 262 NULL 263 }; 264 sc->sc_screens[0] = &sc->sc_defaultscreen_descr; 265 sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens}; 266 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 267 sc->sc_locked = 0; 268 269 vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr, 270 &r128fb_accessops); 271 sc->vd.init_screen = r128fb_init_screen; 272 273 /* init engine here */ 274 r128fb_init(sc); 275 276 ri = &sc->sc_console_screen.scr_ri; 277 278 j = 0; 279 if (sc->sc_depth == 8) { 280 /* generate an r3g3b2 colour map */ 281 for (i = 0; i < 256; i++) { 282 tmp = i & 0xe0; 283 /* 284 * replicate bits so 0xe0 maps to a red value of 0xff 285 * in order to make white look actually white 286 */ 287 tmp |= (tmp >> 3) | (tmp >> 6); 288 sc->sc_cmap_red[i] = tmp; 289 290 tmp = (i & 0x1c) << 3; 291 tmp |= (tmp >> 3) | (tmp >> 6); 292 sc->sc_cmap_green[i] = tmp; 293 294 tmp = (i & 0x03) << 6; 295 tmp |= tmp >> 2; 296 tmp |= tmp >> 4; 297 sc->sc_cmap_blue[i] = tmp; 298 299 r128fb_putpalreg(sc, i, sc->sc_cmap_red[i], 300 sc->sc_cmap_green[i], 301 sc->sc_cmap_blue[i]); 302 } 303 } else { 304 /* steal rasops' ANSI cmap */ 305 for (i = 0; i < 256; i++) { 306 sc->sc_cmap_red[i] = i; 307 sc->sc_cmap_green[i] = i; 308 sc->sc_cmap_blue[i] = i; 309 r128fb_putpalreg(sc, i, i, i, i); 310 j += 3; 311 } 312 } 313 314 if (is_console) { 315 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, 316 &defattr); 317 sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 318 319 r128fb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, 320 ri->ri_devcmap[(defattr >> 16) & 0xff]); 321 sc->sc_defaultscreen_descr.textops = &ri->ri_ops; 322 sc->sc_defaultscreen_descr.capabilities = ri->ri_caps; 323 sc->sc_defaultscreen_descr.nrows = ri->ri_rows; 324 sc->sc_defaultscreen_descr.ncols = ri->ri_cols; 325 wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0, 326 defattr); 327 vcons_replay_msgbuf(&sc->sc_console_screen); 328 } else { 329 /* 330 * since we're not the console we can postpone the rest 331 * until someone actually allocates a screen for us 332 */ 333 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 334 } 335 336 /* no suspend/resume support yet */ 337 pmf_device_register(sc->sc_dev, NULL, NULL); 338 339 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 340 DPRINTF("R128_LVDS_GEN_CNTL: %08x\n", reg); 341 if (reg & R128_LVDS_ON) { 342 sc->sc_have_backlight = 1; 343 sc->sc_bl_on = 1; 344 sc->sc_bl_level = 255 - 345 ((reg & R128_LEVEL_MASK) >> R128_LEVEL_SHIFT); 346 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_UP, 347 r128fb_brightness_up, TRUE); 348 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_DOWN, 349 r128fb_brightness_down, TRUE); 350 aprint_verbose("%s: LVDS output is active, enabling backlight" 351 " control\n", device_xname(self)); 352 } else 353 sc->sc_have_backlight = 0; 354 355 aa.console = is_console; 356 aa.scrdata = &sc->sc_screenlist; 357 aa.accessops = &r128fb_accessops; 358 aa.accesscookie = &sc->vd; 359 360 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 361 } 362 363 static int 364 r128fb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 365 struct lwp *l) 366 { 367 struct vcons_data *vd = v; 368 struct r128fb_softc *sc = vd->cookie; 369 struct wsdisplay_fbinfo *wdf; 370 struct vcons_screen *ms = vd->active; 371 struct wsdisplay_param *param; 372 373 switch (cmd) { 374 case WSDISPLAYIO_GTYPE: 375 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 376 return 0; 377 378 /* PCI config read/write passthrough. */ 379 case PCI_IOC_CFGREAD: 380 case PCI_IOC_CFGWRITE: 381 return pci_devioctl(sc->sc_pc, sc->sc_pcitag, 382 cmd, data, flag, l); 383 384 case WSDISPLAYIO_GET_BUSID: 385 return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc, sc->sc_pcitag, data); 386 387 case WSDISPLAYIO_GINFO: 388 if (ms == NULL) 389 return ENODEV; 390 wdf = (void *)data; 391 wdf->height = ms->scr_ri.ri_height; 392 wdf->width = ms->scr_ri.ri_width; 393 wdf->depth = ms->scr_ri.ri_depth; 394 wdf->cmsize = 256; 395 return 0; 396 397 case WSDISPLAYIO_GETCMAP: 398 return r128fb_getcmap(sc, 399 (struct wsdisplay_cmap *)data); 400 401 case WSDISPLAYIO_PUTCMAP: 402 return r128fb_putcmap(sc, 403 (struct wsdisplay_cmap *)data); 404 405 case WSDISPLAYIO_LINEBYTES: 406 *(u_int *)data = sc->sc_stride; 407 return 0; 408 409 case WSDISPLAYIO_SMODE: { 410 int new_mode = *(int*)data; 411 if (new_mode != sc->sc_mode) { 412 sc->sc_mode = new_mode; 413 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 414 r128fb_init(sc); 415 r128fb_restore_palette(sc); 416 r128fb_rectfill(sc, 0, 0, sc->sc_width, 417 sc->sc_height, ms->scr_ri.ri_devcmap[ 418 (ms->scr_defattr >> 16) & 0xff]); 419 vcons_redraw_screen(ms); 420 } 421 } 422 } 423 return 0; 424 425 case WSDISPLAYIO_GETPARAM: 426 param = (struct wsdisplay_param *)data; 427 if (sc->sc_have_backlight == 0) 428 return EPASSTHROUGH; 429 switch (param->param) { 430 case WSDISPLAYIO_PARAM_BRIGHTNESS: 431 param->min = 0; 432 param->max = 255; 433 param->curval = sc->sc_bl_level; 434 return 0; 435 case WSDISPLAYIO_PARAM_BACKLIGHT: 436 param->min = 0; 437 param->max = 1; 438 param->curval = sc->sc_bl_on; 439 return 0; 440 } 441 return EPASSTHROUGH; 442 443 case WSDISPLAYIO_SETPARAM: 444 param = (struct wsdisplay_param *)data; 445 if (sc->sc_have_backlight == 0) 446 return EPASSTHROUGH; 447 switch (param->param) { 448 case WSDISPLAYIO_PARAM_BRIGHTNESS: 449 r128fb_set_backlight(sc, param->curval); 450 return 0; 451 case WSDISPLAYIO_PARAM_BACKLIGHT: 452 r128fb_switch_backlight(sc, param->curval); 453 return 0; 454 } 455 return EPASSTHROUGH; 456 case WSDISPLAYIO_GET_EDID: { 457 struct wsdisplayio_edid_info *d = data; 458 return wsdisplayio_get_edid(sc->sc_dev, d); 459 } 460 } 461 return EPASSTHROUGH; 462 } 463 464 static paddr_t 465 r128fb_mmap(void *v, void *vs, off_t offset, int prot) 466 { 467 struct vcons_data *vd = v; 468 struct r128fb_softc *sc = vd->cookie; 469 paddr_t pa; 470 471 /* 'regular' framebuffer mmap()ing */ 472 if (offset < sc->sc_fbsize) { 473 pa = bus_space_mmap(sc->sc_memt, sc->sc_fb + offset, 0, prot, 474 BUS_SPACE_MAP_LINEAR); 475 return pa; 476 } 477 478 /* 479 * restrict all other mappings to processes with superuser privileges 480 * or the kernel itself 481 */ 482 if (kauth_authorize_generic(kauth_cred_get(), KAUTH_GENERIC_ISSUSER, 483 NULL) != 0) { 484 aprint_normal("%s: mmap() rejected.\n", 485 device_xname(sc->sc_dev)); 486 return -1; 487 } 488 489 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 490 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 491 BUS_SPACE_MAP_LINEAR); 492 return pa; 493 } 494 495 if ((offset >= sc->sc_reg) && 496 (offset < (sc->sc_reg + sc->sc_regsize))) { 497 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 498 BUS_SPACE_MAP_LINEAR); 499 return pa; 500 } 501 502 #ifdef PCI_MAGIC_IO_RANGE 503 /* allow mapping of IO space */ 504 if ((offset >= PCI_MAGIC_IO_RANGE) && 505 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 506 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 507 0, prot, BUS_SPACE_MAP_LINEAR); 508 return pa; 509 } 510 #endif 511 512 #ifdef OFB_ALLOW_OTHERS 513 if (offset >= 0x80000000) { 514 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 515 BUS_SPACE_MAP_LINEAR); 516 return pa; 517 } 518 #endif 519 return -1; 520 } 521 522 static void 523 r128fb_init_screen(void *cookie, struct vcons_screen *scr, 524 int existing, long *defattr) 525 { 526 struct r128fb_softc *sc = cookie; 527 struct rasops_info *ri = &scr->scr_ri; 528 529 ri->ri_depth = sc->sc_depth; 530 ri->ri_width = sc->sc_width; 531 ri->ri_height = sc->sc_height; 532 ri->ri_stride = sc->sc_stride; 533 ri->ri_flg = RI_CENTER; 534 if (sc->sc_depth == 8) 535 ri->ri_flg |= RI_8BIT_IS_RGB | RI_ENABLE_ALPHA; 536 537 rasops_init(ri, sc->sc_height / 8, sc->sc_width / 8); 538 ri->ri_caps = WSSCREEN_WSCOLORS; 539 #ifdef VCONS_DRAW_INTR 540 scr->scr_flags |= VCONS_DONT_READ; 541 #endif 542 543 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 544 sc->sc_width / ri->ri_font->fontwidth); 545 546 ri->ri_hw = scr; 547 ri->ri_ops.copyrows = r128fb_copyrows; 548 ri->ri_ops.copycols = r128fb_copycols; 549 ri->ri_ops.eraserows = r128fb_eraserows; 550 ri->ri_ops.erasecols = r128fb_erasecols; 551 ri->ri_ops.cursor = r128fb_cursor; 552 if (FONT_IS_ALPHA(ri->ri_font)) { 553 ri->ri_ops.putchar = r128fb_putchar_aa; 554 } else 555 ri->ri_ops.putchar = r128fb_putchar; 556 } 557 558 static int 559 r128fb_putcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 560 { 561 u_char *r, *g, *b; 562 u_int index = cm->index; 563 u_int count = cm->count; 564 int i, error; 565 u_char rbuf[256], gbuf[256], bbuf[256]; 566 567 #ifdef R128FB_DEBUG 568 aprint_debug("putcmap: %d %d\n",index, count); 569 #endif 570 if (cm->index >= 256 || cm->count > 256 || 571 (cm->index + cm->count) > 256) 572 return EINVAL; 573 error = copyin(cm->red, &rbuf[index], count); 574 if (error) 575 return error; 576 error = copyin(cm->green, &gbuf[index], count); 577 if (error) 578 return error; 579 error = copyin(cm->blue, &bbuf[index], count); 580 if (error) 581 return error; 582 583 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 584 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 585 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 586 587 r = &sc->sc_cmap_red[index]; 588 g = &sc->sc_cmap_green[index]; 589 b = &sc->sc_cmap_blue[index]; 590 591 for (i = 0; i < count; i++) { 592 r128fb_putpalreg(sc, index, *r, *g, *b); 593 index++; 594 r++, g++, b++; 595 } 596 return 0; 597 } 598 599 static int 600 r128fb_getcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 601 { 602 u_int index = cm->index; 603 u_int count = cm->count; 604 int error; 605 606 if (index >= 255 || count > 256 || index + count > 256) 607 return EINVAL; 608 609 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 610 if (error) 611 return error; 612 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 613 if (error) 614 return error; 615 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 616 if (error) 617 return error; 618 619 return 0; 620 } 621 622 static void 623 r128fb_restore_palette(struct r128fb_softc *sc) 624 { 625 int i; 626 627 for (i = 0; i < (1 << sc->sc_depth); i++) { 628 r128fb_putpalreg(sc, i, sc->sc_cmap_red[i], 629 sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); 630 } 631 } 632 633 static int 634 r128fb_putpalreg(struct r128fb_softc *sc, uint8_t idx, uint8_t r, uint8_t g, 635 uint8_t b) 636 { 637 uint32_t reg; 638 639 /* whack the DAC */ 640 reg = (r << 16) | (g << 8) | b; 641 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_INDEX, idx); 642 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_DATA, reg); 643 return 0; 644 } 645 646 static void 647 r128fb_init(struct r128fb_softc *sc) 648 { 649 uint32_t datatype, d, reg; 650 651 r128fb_flush_engine(sc); 652 653 r128fb_wait(sc, 9); 654 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_OFFSET, 0); 655 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_OFFSET, 0); 656 /* pitch is in units of 8 pixels */ 657 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_PITCH, 658 sc->sc_width >> 3); 659 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_AUX_SC_CNTL, 0); 660 bus_space_write_4(sc->sc_memt, sc->sc_regh, 661 R128_DEFAULT_SC_BOTTOM_RIGHT, 662 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 663 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_TOP_LEFT, 0); 664 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_BOTTOM_RIGHT, 665 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 666 bus_space_write_4(sc->sc_memt, sc->sc_regh, 667 R128_DEFAULT_SC_BOTTOM_RIGHT, 668 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 669 670 #if 0 671 #if BYTE_ORDER == BIG_ENDIAN 672 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 673 R128_HOST_BIG_ENDIAN_EN); 674 #else 675 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 0); 676 #endif 677 #endif 678 r128fb_wait(sc, 7); 679 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_PITCH, 680 sc->sc_width >> 3); 681 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_PITCH, 682 sc->sc_width >> 3); 683 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_OFFSET, 0); 684 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_OFFSET, 0); 685 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_WRITE_MASK, 686 0xffffffff); 687 688 switch (sc->sc_depth) { 689 case 8: 690 datatype = R128_GMC_DST_8BPP_CI; 691 d = R128_CRTC_COLOR_8BIT; 692 break; 693 case 15: 694 datatype = R128_GMC_DST_15BPP; 695 d = R128_CRTC_COLOR_15BIT; 696 break; 697 case 16: 698 datatype = R128_GMC_DST_16BPP; 699 d = R128_CRTC_COLOR_16BIT; 700 break; 701 case 24: 702 datatype = R128_GMC_DST_24BPP; 703 d = R128_CRTC_COLOR_24BIT; 704 break; 705 case 32: 706 datatype = R128_GMC_DST_32BPP; 707 d = R128_CRTC_COLOR_32BIT; 708 break; 709 default: 710 aprint_error("%s: unsupported depth %d\n", 711 device_xname(sc->sc_dev), sc->sc_depth); 712 return; 713 } 714 sc->sc_master_cntl = R128_GMC_CLR_CMP_CNTL_DIS | 715 R128_GMC_AUX_CLIP_DIS | datatype; 716 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_CRTC_GEN_CNTL); 717 DPRINTF("depth: %d\n", reg & R128_CRTC_PIX_WIDTH); 718 reg &= ~R128_CRTC_PIX_WIDTH; 719 reg |= d; 720 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_GEN_CNTL, reg); 721 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_PITCH, sc->sc_width >> 3); 722 r128fb_flush_engine(sc); 723 } 724 725 static void 726 r128fb_rectfill(struct r128fb_softc *sc, int x, int y, int wi, int he, 727 uint32_t colour) 728 { 729 730 r128fb_wait(sc, 5); 731 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 732 R128_GMC_BRUSH_SOLID_COLOR | 733 R128_GMC_SRC_DATATYPE_COLOR | 734 R128_ROP3_P | 735 sc->sc_master_cntl); 736 737 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_BRUSH_FRGD_CLR, 738 colour); 739 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, 740 R128_DST_X_LEFT_TO_RIGHT | R128_DST_Y_TOP_TO_BOTTOM); 741 /* now feed it coordinates */ 742 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 743 (x << 16) | y); 744 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 745 (wi << 16) | he); 746 } 747 748 static void 749 r128fb_bitblt(struct r128fb_softc *sc, int xs, int ys, int xd, int yd, 750 int wi, int he, int rop) 751 { 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 uc, i; 829 int x, y, wi, he, offset; 830 831 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 832 return; 833 834 if (!CHAR_IN_FONT(c, font)) 835 return; 836 837 wi = font->fontwidth; 838 he = font->fontheight; 839 840 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 841 fg = ri->ri_devcmap[(attr >> 24) & 0xf]; 842 x = ri->ri_xorigin + col * wi; 843 y = ri->ri_yorigin + row * he; 844 845 if (c == 0x20) { 846 r128fb_rectfill(sc, x, y, wi, he, bg); 847 return; 848 } 849 850 uc = c - font->firstchar; 851 data = (uint8_t *)font->data + uc * ri->ri_fontscale; 852 853 r128fb_wait(sc, 8); 854 855 bus_space_write_4(sc->sc_memt, sc->sc_regh, 856 R128_DP_GUI_MASTER_CNTL, 857 R128_GMC_BRUSH_SOLID_COLOR | 858 R128_GMC_SRC_DATATYPE_MONO_FG_BG | 859 R128_ROP3_S | 860 R128_DP_SRC_SOURCE_HOST_DATA | 861 R128_GMC_DST_CLIPPING | 862 sc->sc_master_cntl); 863 864 bus_space_write_4(sc->sc_memt, sc->sc_regh, 865 R128_DP_CNTL, 866 R128_DST_Y_TOP_TO_BOTTOM | 867 R128_DST_X_LEFT_TO_RIGHT); 868 869 bus_space_write_4(sc->sc_memt, sc->sc_regh, 870 R128_DP_SRC_FRGD_CLR, fg); 871 bus_space_write_4(sc->sc_memt, sc->sc_regh, 872 R128_DP_SRC_BKGD_CLR, bg); 873 874 /* 875 * The Rage 128 doesn't have anything to skip pixels 876 * when colour expanding but all coordinates 877 * are signed so we just clip the leading bytes and 878 * trailing bits away 879 */ 880 bus_space_write_4(sc->sc_memt, sc->sc_regh, 881 R128_SC_RIGHT, x + wi - 1); 882 bus_space_write_4(sc->sc_memt, sc->sc_regh, 883 R128_SC_LEFT, x); 884 885 /* needed? */ 886 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 0); 887 888 offset = 32 - (font->stride << 3); 889 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 890 ((x - offset) << 16) | y); 891 bus_space_write_4(sc->sc_memt, sc->sc_regh, 892 R128_DST_WIDTH_HEIGHT, (32 << 16) | he); 893 894 r128fb_wait(sc, he); 895 switch (font->stride) { 896 case 1: { 897 uint8_t *data8 = data; 898 uint32_t reg; 899 for (i = 0; i < he; i++) { 900 reg = *data8; 901 bus_space_write_stream_4(sc->sc_memt, 902 sc->sc_regh, R128_HOST_DATA0, reg); 903 data8++; 904 } 905 break; 906 } 907 case 2: { 908 uint16_t *data16 = data; 909 uint32_t reg; 910 for (i = 0; i < he; i++) { 911 reg = *data16; 912 bus_space_write_stream_4(sc->sc_memt, 913 sc->sc_regh, R128_HOST_DATA0, reg); 914 data16++; 915 } 916 break; 917 } 918 } 919 } 920 921 static void 922 r128fb_putchar_aa(void *cookie, int row, int col, u_int c, long attr) 923 { 924 struct rasops_info *ri = cookie; 925 struct wsdisplay_font *font = PICK_FONT(ri, c); 926 struct vcons_screen *scr = ri->ri_hw; 927 struct r128fb_softc *sc = scr->scr_cookie; 928 uint32_t bg, latch = 0, bg8, fg8, pixel; 929 int uc, i, x, y, wi, he, r, g, b, aval; 930 int r1, g1, b1, r0, g0, b0, fgo, bgo; 931 uint8_t *data8; 932 933 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 934 return; 935 936 if (!CHAR_IN_FONT(c, font)) 937 return; 938 939 wi = font->fontwidth; 940 he = font->fontheight; 941 942 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 943 x = ri->ri_xorigin + col * wi; 944 y = ri->ri_yorigin + row * he; 945 if (c == 0x20) { 946 r128fb_rectfill(sc, x, y, wi, he, bg); 947 return; 948 } 949 950 uc = c - font->firstchar; 951 data8 = (uint8_t *)font->data + uc * ri->ri_fontscale; 952 953 r128fb_wait(sc, 5); 954 bus_space_write_4(sc->sc_memt, sc->sc_regh, 955 R128_DP_GUI_MASTER_CNTL, 956 R128_GMC_BRUSH_SOLID_COLOR | 957 R128_GMC_SRC_DATATYPE_COLOR | 958 R128_ROP3_S | 959 R128_DP_SRC_SOURCE_HOST_DATA | 960 sc->sc_master_cntl); 961 962 bus_space_write_4(sc->sc_memt, sc->sc_regh, 963 R128_DP_CNTL, 964 R128_DST_Y_TOP_TO_BOTTOM | 965 R128_DST_X_LEFT_TO_RIGHT); 966 967 /* needed? */ 968 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 0); 969 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 970 (x << 16) | y); 971 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 972 (wi << 16) | he); 973 974 /* 975 * we need the RGB colours here, so get offsets into rasops_cmap 976 */ 977 fgo = ((attr >> 24) & 0xf) * 3; 978 bgo = ((attr >> 16) & 0xf) * 3; 979 980 r0 = rasops_cmap[bgo]; 981 r1 = rasops_cmap[fgo]; 982 g0 = rasops_cmap[bgo + 1]; 983 g1 = rasops_cmap[fgo + 1]; 984 b0 = rasops_cmap[bgo + 2]; 985 b1 = rasops_cmap[fgo + 2]; 986 #define R3G3B2(r, g, b) ((r & 0xe0) | ((g >> 3) & 0x1c) | (b >> 6)) 987 bg8 = R3G3B2(r0, g0, b0); 988 fg8 = R3G3B2(r1, g1, b1); 989 for (i = 0; i < ri->ri_fontscale; i++) { 990 aval = *data8; 991 if (aval == 0) { 992 pixel = bg8; 993 } else if (aval == 255) { 994 pixel = fg8; 995 } else { 996 r = aval * r1 + (255 - aval) * r0; 997 g = aval * g1 + (255 - aval) * g0; 998 b = aval * b1 + (255 - aval) * b0; 999 pixel = ((r & 0xe000) >> 8) | 1000 ((g & 0xe000) >> 11) | 1001 ((b & 0xc000) >> 14); 1002 } 1003 latch = (latch << 8) | pixel; 1004 /* write in 32bit chunks */ 1005 if ((i & 3) == 3) { 1006 bus_space_write_stream_4(sc->sc_memt, sc->sc_regh, 1007 R128_HOST_DATA0, latch); 1008 /* 1009 * not strictly necessary, old data should be shifted 1010 * out 1011 */ 1012 latch = 0; 1013 } 1014 data8++; 1015 } 1016 /* if we have pixels left in latch write them out */ 1017 if ((i & 3) != 0) { 1018 latch = latch << ((4 - (i & 3)) << 3); 1019 bus_space_write_stream_4(sc->sc_memt, sc->sc_regh, 1020 R128_HOST_DATA0, latch); 1021 } 1022 } 1023 1024 static void 1025 r128fb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 1026 { 1027 struct rasops_info *ri = cookie; 1028 struct vcons_screen *scr = ri->ri_hw; 1029 struct r128fb_softc *sc = scr->scr_cookie; 1030 int32_t xs, xd, y, width, height; 1031 1032 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1033 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 1034 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 1035 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1036 width = ri->ri_font->fontwidth * ncols; 1037 height = ri->ri_font->fontheight; 1038 r128fb_bitblt(sc, xs, y, xd, y, width, height, R128_ROP3_S); 1039 } 1040 } 1041 1042 static void 1043 r128fb_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr) 1044 { 1045 struct rasops_info *ri = cookie; 1046 struct vcons_screen *scr = ri->ri_hw; 1047 struct r128fb_softc *sc = scr->scr_cookie; 1048 int32_t x, y, width, height, fg, bg, ul; 1049 1050 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1051 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 1052 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1053 width = ri->ri_font->fontwidth * ncols; 1054 height = ri->ri_font->fontheight; 1055 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 1056 1057 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 1058 } 1059 } 1060 1061 static void 1062 r128fb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 1063 { 1064 struct rasops_info *ri = cookie; 1065 struct vcons_screen *scr = ri->ri_hw; 1066 struct r128fb_softc *sc = scr->scr_cookie; 1067 int32_t x, ys, yd, width, height; 1068 1069 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1070 x = ri->ri_xorigin; 1071 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 1072 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 1073 width = ri->ri_emuwidth; 1074 height = ri->ri_font->fontheight * nrows; 1075 r128fb_bitblt(sc, x, ys, x, yd, width, height, R128_ROP3_S); 1076 } 1077 } 1078 1079 static void 1080 r128fb_eraserows(void *cookie, int row, int nrows, long fillattr) 1081 { 1082 struct rasops_info *ri = cookie; 1083 struct vcons_screen *scr = ri->ri_hw; 1084 struct r128fb_softc *sc = scr->scr_cookie; 1085 int32_t x, y, width, height, fg, bg, ul; 1086 1087 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1088 x = ri->ri_xorigin; 1089 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1090 width = ri->ri_emuwidth; 1091 height = ri->ri_font->fontheight * nrows; 1092 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 1093 1094 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 1095 } 1096 } 1097 1098 static void 1099 r128fb_set_backlight(struct r128fb_softc *sc, int level) 1100 { 1101 uint32_t reg; 1102 1103 /* 1104 * should we do nothing when backlight is off, should we just store the 1105 * level and use it when turning back on or should we just flip sc_bl_on 1106 * and turn the backlight on? 1107 * For now turn it on so a crashed screensaver can't get the user stuck 1108 * with a dark screen as long as hotkeys work 1109 */ 1110 if (level > 255) level = 255; 1111 if (level < 0) level = 0; 1112 if (level == sc->sc_bl_level) 1113 return; 1114 sc->sc_bl_level = level; 1115 if (sc->sc_bl_on == 0) 1116 sc->sc_bl_on = 1; 1117 level = 255 - level; 1118 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 1119 reg &= ~R128_LEVEL_MASK; 1120 reg |= (level << R128_LEVEL_SHIFT); 1121 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 1122 DPRINTF("backlight level: %d reg %08x\n", level, reg); 1123 } 1124 1125 static void 1126 r128fb_switch_backlight(struct r128fb_softc *sc, int on) 1127 { 1128 uint32_t reg; 1129 int level; 1130 1131 if (on == sc->sc_bl_on) 1132 return; 1133 sc->sc_bl_on = on; 1134 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 1135 reg &= ~R128_LEVEL_MASK; 1136 level = on ? 255 - sc->sc_bl_level : 255; 1137 reg |= level << R128_LEVEL_SHIFT; 1138 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 1139 DPRINTF("backlight state: %d reg %08x\n", on, reg); 1140 } 1141 1142 1143 static void 1144 r128fb_brightness_up(device_t dev) 1145 { 1146 struct r128fb_softc *sc = device_private(dev); 1147 1148 r128fb_set_backlight(sc, sc->sc_bl_level + 8); 1149 } 1150 1151 static void 1152 r128fb_brightness_down(device_t dev) 1153 { 1154 struct r128fb_softc *sc = device_private(dev); 1155 1156 r128fb_set_backlight(sc, sc->sc_bl_level - 8); 1157 } 1158
Indexes created Mon Sep 29 18:09:42 GMT 2025