r128fb.c revision 1.40
1 /* $NetBSD: r128fb.c,v 1.40 2017/01/20 12:25:07 maya Exp $ */ 2 3 /* 4 * Copyright (c) 2007, 2012 Michael Lorenz 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * A console driver for ATI Rage 128 graphics controllers 30 * tested on macppc only so far 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: r128fb.c,v 1.40 2017/01/20 12:25:07 maya 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 = FALSE; 205 int i, j; 206 uint32_t reg, flags; 207 uint8_t cmap[768]; 208 209 sc->sc_pc = pa->pa_pc; 210 sc->sc_pcitag = pa->pa_tag; 211 sc->sc_memt = pa->pa_memt; 212 sc->sc_iot = pa->pa_iot; 213 sc->sc_dev = self; 214 215 pci_aprint_devinfo(pa, NULL); 216 217 /* fill in parameters from properties */ 218 dict = device_properties(self); 219 if (!prop_dictionary_get_uint32(dict, "width", &sc->sc_width)) { 220 aprint_error("%s: no width property\n", device_xname(self)); 221 return; 222 } 223 if (!prop_dictionary_get_uint32(dict, "height", &sc->sc_height)) { 224 aprint_error("%s: no height property\n", device_xname(self)); 225 return; 226 } 227 228 #ifdef GLYPHCACHE_DEBUG 229 /* leave some visible VRAM unused so we can see the glyph cache */ 230 sc->sc_height -= 200; 231 #endif 232 233 if (!prop_dictionary_get_uint32(dict, "depth", &sc->sc_depth)) { 234 aprint_error("%s: no depth property\n", device_xname(self)); 235 return; 236 } 237 if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->sc_stride)) { 238 aprint_error("%s: no linebytes property\n", 239 device_xname(self)); 240 return; 241 } 242 243 prop_dictionary_get_bool(dict, "is_console", &is_console); 244 245 if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, 0x10, PCI_MAPREG_TYPE_MEM, 246 &sc->sc_fb, &sc->sc_fbsize, &flags)) { 247 aprint_error("%s: failed to map the frame buffer.\n", 248 device_xname(sc->sc_dev)); 249 } 250 251 if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_MEM, 0, 252 &tag, &sc->sc_regh, &sc->sc_reg, &sc->sc_regsize)) { 253 aprint_error("%s: failed to map registers.\n", 254 device_xname(sc->sc_dev)); 255 } 256 257 aprint_normal("%s: %d MB aperture at 0x%08x\n", device_xname(self), 258 (int)(sc->sc_fbsize >> 20), (uint32_t)sc->sc_fb); 259 260 sc->sc_defaultscreen_descr = (struct wsscreen_descr){ 261 "default", 262 0, 0, 263 NULL, 264 8, 16, 265 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 266 NULL 267 }; 268 sc->sc_screens[0] = &sc->sc_defaultscreen_descr; 269 sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens}; 270 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 271 sc->sc_locked = 0; 272 273 vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr, 274 &r128fb_accessops); 275 sc->vd.init_screen = r128fb_init_screen; 276 277 /* init engine here */ 278 r128fb_init(sc); 279 280 ri = &sc->sc_console_screen.scr_ri; 281 282 sc->sc_gc.gc_bitblt = r128fb_bitblt; 283 sc->sc_gc.gc_blitcookie = sc; 284 sc->sc_gc.gc_rop = R128_ROP3_S; 285 if (is_console) { 286 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, 287 &defattr); 288 sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 289 290 r128fb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, 291 ri->ri_devcmap[(defattr >> 16) & 0xff]); 292 sc->sc_defaultscreen_descr.textops = &ri->ri_ops; 293 sc->sc_defaultscreen_descr.capabilities = ri->ri_caps; 294 sc->sc_defaultscreen_descr.nrows = ri->ri_rows; 295 sc->sc_defaultscreen_descr.ncols = ri->ri_cols; 296 glyphcache_init(&sc->sc_gc, sc->sc_height + 5, 297 (0x800000 / sc->sc_stride) - sc->sc_height - 5, 298 sc->sc_width, 299 ri->ri_font->fontwidth, 300 ri->ri_font->fontheight, 301 defattr); 302 wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0, 303 defattr); 304 vcons_replay_msgbuf(&sc->sc_console_screen); 305 } else { 306 /* 307 * since we're not the console we can postpone the rest 308 * until someone actually allocates a screen for us 309 */ 310 if (sc->sc_console_screen.scr_ri.ri_rows == 0) { 311 /* do some minimal setup to avoid weirdnesses later */ 312 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, 313 &defattr); 314 } else 315 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 316 glyphcache_init(&sc->sc_gc, sc->sc_height + 5, 317 (0x800000 / sc->sc_stride) - sc->sc_height - 5, 318 sc->sc_width, 319 ri->ri_font->fontwidth, 320 ri->ri_font->fontheight, 321 defattr); 322 } 323 324 j = 0; 325 rasops_get_cmap(ri, cmap, sizeof(cmap)); 326 for (i = 0; i < 256; i++) { 327 sc->sc_cmap_red[i] = cmap[j]; 328 sc->sc_cmap_green[i] = cmap[j + 1]; 329 sc->sc_cmap_blue[i] = cmap[j + 2]; 330 r128fb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]); 331 j += 3; 332 } 333 334 /* no suspend/resume support yet */ 335 if (!pmf_device_register(sc->sc_dev, NULL, NULL)) 336 aprint_error_dev(sc->sc_dev, 337 "couldn't establish power handler\n"); 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, 386 sc->sc_pcitag, data); 387 388 case WSDISPLAYIO_GINFO: 389 if (ms == NULL) 390 return ENODEV; 391 wdf = (void *)data; 392 wdf->height = ms->scr_ri.ri_height; 393 wdf->width = ms->scr_ri.ri_width; 394 wdf->depth = ms->scr_ri.ri_depth; 395 wdf->cmsize = 256; 396 return 0; 397 398 case WSDISPLAYIO_GETCMAP: 399 return r128fb_getcmap(sc, 400 (struct wsdisplay_cmap *)data); 401 402 case WSDISPLAYIO_PUTCMAP: 403 return r128fb_putcmap(sc, 404 (struct wsdisplay_cmap *)data); 405 406 case WSDISPLAYIO_LINEBYTES: 407 *(u_int *)data = sc->sc_stride; 408 return 0; 409 410 case WSDISPLAYIO_SMODE: { 411 int new_mode = *(int*)data; 412 if (new_mode != sc->sc_mode) { 413 sc->sc_mode = new_mode; 414 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 415 r128fb_init(sc); 416 r128fb_restore_palette(sc); 417 glyphcache_wipe(&sc->sc_gc); 418 r128fb_rectfill(sc, 0, 0, sc->sc_width, 419 sc->sc_height, ms->scr_ri.ri_devcmap[ 420 (ms->scr_defattr >> 16) & 0xff]); 421 vcons_redraw_screen(ms); 422 } 423 } 424 } 425 return 0; 426 427 case WSDISPLAYIO_GETPARAM: 428 param = (struct wsdisplay_param *)data; 429 if (sc->sc_have_backlight == 0) 430 return EPASSTHROUGH; 431 switch (param->param) { 432 case WSDISPLAYIO_PARAM_BRIGHTNESS: 433 param->min = 0; 434 param->max = 255; 435 param->curval = sc->sc_bl_level; 436 return 0; 437 case WSDISPLAYIO_PARAM_BACKLIGHT: 438 param->min = 0; 439 param->max = 1; 440 param->curval = sc->sc_bl_on; 441 return 0; 442 } 443 return EPASSTHROUGH; 444 445 case WSDISPLAYIO_SETPARAM: 446 param = (struct wsdisplay_param *)data; 447 if (sc->sc_have_backlight == 0) 448 return EPASSTHROUGH; 449 switch (param->param) { 450 case WSDISPLAYIO_PARAM_BRIGHTNESS: 451 r128fb_set_backlight(sc, param->curval); 452 return 0; 453 case WSDISPLAYIO_PARAM_BACKLIGHT: 454 r128fb_switch_backlight(sc, param->curval); 455 return 0; 456 } 457 return EPASSTHROUGH; 458 459 case WSDISPLAYIO_GET_EDID: { 460 struct wsdisplayio_edid_info *d = data; 461 return wsdisplayio_get_edid(sc->sc_dev, d); 462 } 463 464 case WSDISPLAYIO_GET_FBINFO: { 465 struct wsdisplayio_fbinfo *fbi = data; 466 return wsdisplayio_get_fbinfo(&ms->scr_ri, fbi); 467 } 468 } 469 return EPASSTHROUGH; 470 } 471 472 static paddr_t 473 r128fb_mmap(void *v, void *vs, off_t offset, int prot) 474 { 475 struct vcons_data *vd = v; 476 struct r128fb_softc *sc = vd->cookie; 477 paddr_t pa; 478 479 /* 'regular' framebuffer mmap()ing */ 480 if (offset < sc->sc_fbsize) { 481 pa = bus_space_mmap(sc->sc_memt, sc->sc_fb + offset, 0, prot, 482 BUS_SPACE_MAP_LINEAR); 483 return pa; 484 } 485 486 /* 487 * restrict all other mappings to processes with superuser privileges 488 * or the kernel itself 489 */ 490 if (kauth_authorize_machdep(kauth_cred_get(), KAUTH_MACHDEP_UNMANAGEDMEM, 491 NULL, NULL, NULL, NULL) != 0) { 492 aprint_normal("%s: mmap() rejected.\n", 493 device_xname(sc->sc_dev)); 494 return -1; 495 } 496 497 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 498 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 499 BUS_SPACE_MAP_LINEAR); 500 return pa; 501 } 502 503 if ((offset >= sc->sc_reg) && 504 (offset < (sc->sc_reg + sc->sc_regsize))) { 505 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 506 BUS_SPACE_MAP_LINEAR); 507 return pa; 508 } 509 510 #ifdef PCI_MAGIC_IO_RANGE 511 /* allow mapping of IO space */ 512 if ((offset >= PCI_MAGIC_IO_RANGE) && 513 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 514 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 515 0, prot, BUS_SPACE_MAP_LINEAR); 516 return pa; 517 } 518 #endif 519 520 #ifdef OFB_ALLOW_OTHERS 521 if (offset >= 0x80000000) { 522 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 523 BUS_SPACE_MAP_LINEAR); 524 return pa; 525 } 526 #endif 527 return -1; 528 } 529 530 static void 531 r128fb_init_screen(void *cookie, struct vcons_screen *scr, 532 int existing, long *defattr) 533 { 534 struct r128fb_softc *sc = cookie; 535 struct rasops_info *ri = &scr->scr_ri; 536 537 ri->ri_depth = sc->sc_depth; 538 ri->ri_width = sc->sc_width; 539 ri->ri_height = sc->sc_height; 540 ri->ri_stride = sc->sc_stride; 541 ri->ri_flg = RI_CENTER; 542 if (sc->sc_depth == 8) 543 ri->ri_flg |= RI_8BIT_IS_RGB | RI_ENABLE_ALPHA; 544 545 rasops_init(ri, 0, 0); 546 ri->ri_caps = WSSCREEN_WSCOLORS; 547 #ifdef VCONS_DRAW_INTR 548 scr->scr_flags |= VCONS_DONT_READ; 549 #endif 550 551 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 552 sc->sc_width / ri->ri_font->fontwidth); 553 554 ri->ri_hw = scr; 555 ri->ri_ops.copyrows = r128fb_copyrows; 556 ri->ri_ops.copycols = r128fb_copycols; 557 ri->ri_ops.eraserows = r128fb_eraserows; 558 ri->ri_ops.erasecols = r128fb_erasecols; 559 ri->ri_ops.cursor = r128fb_cursor; 560 if (FONT_IS_ALPHA(ri->ri_font)) { 561 ri->ri_ops.putchar = r128fb_putchar_aa; 562 } else 563 ri->ri_ops.putchar = r128fb_putchar; 564 } 565 566 static int 567 r128fb_putcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 568 { 569 u_char *r, *g, *b; 570 u_int index = cm->index; 571 u_int count = cm->count; 572 int i, error; 573 u_char rbuf[256], gbuf[256], bbuf[256]; 574 575 #ifdef R128FB_DEBUG 576 aprint_debug("putcmap: %d %d\n",index, count); 577 #endif 578 if (cm->index >= 256 || cm->count > 256 || 579 (cm->index + cm->count) > 256) 580 return EINVAL; 581 error = copyin(cm->red, &rbuf[index], count); 582 if (error) 583 return error; 584 error = copyin(cm->green, &gbuf[index], count); 585 if (error) 586 return error; 587 error = copyin(cm->blue, &bbuf[index], count); 588 if (error) 589 return error; 590 591 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 592 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 593 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 594 595 r = &sc->sc_cmap_red[index]; 596 g = &sc->sc_cmap_green[index]; 597 b = &sc->sc_cmap_blue[index]; 598 599 for (i = 0; i < count; i++) { 600 r128fb_putpalreg(sc, index, *r, *g, *b); 601 index++; 602 r++, g++, b++; 603 } 604 return 0; 605 } 606 607 static int 608 r128fb_getcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 609 { 610 u_int index = cm->index; 611 u_int count = cm->count; 612 int error; 613 614 if (index >= 255 || count > 256 || index + count > 256) 615 return EINVAL; 616 617 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 618 if (error) 619 return error; 620 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 621 if (error) 622 return error; 623 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 624 if (error) 625 return error; 626 627 return 0; 628 } 629 630 static void 631 r128fb_restore_palette(struct r128fb_softc *sc) 632 { 633 int i; 634 635 for (i = 0; i < (1 << sc->sc_depth); i++) { 636 r128fb_putpalreg(sc, i, sc->sc_cmap_red[i], 637 sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); 638 } 639 } 640 641 static int 642 r128fb_putpalreg(struct r128fb_softc *sc, uint8_t idx, uint8_t r, uint8_t g, 643 uint8_t b) 644 { 645 uint32_t reg; 646 647 /* whack the DAC */ 648 reg = (r << 16) | (g << 8) | b; 649 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_INDEX, idx); 650 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_DATA, reg); 651 return 0; 652 } 653 654 static void 655 r128fb_init(struct r128fb_softc *sc) 656 { 657 uint32_t datatype, d, reg; 658 659 r128fb_flush_engine(sc); 660 661 r128fb_wait(sc, 9); 662 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_OFFSET, 0); 663 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_OFFSET, 0); 664 /* pitch is in units of 8 pixels */ 665 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_PITCH, 666 sc->sc_width >> 3); 667 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_AUX_SC_CNTL, 0); 668 bus_space_write_4(sc->sc_memt, sc->sc_regh, 669 R128_DEFAULT_SC_BOTTOM_RIGHT, 670 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 671 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_TOP_LEFT, 0); 672 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_BOTTOM_RIGHT, 673 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 674 bus_space_write_4(sc->sc_memt, sc->sc_regh, 675 R128_DEFAULT_SC_BOTTOM_RIGHT, 676 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 677 678 #if 0 679 #if BYTE_ORDER == BIG_ENDIAN 680 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 681 R128_HOST_BIG_ENDIAN_EN); 682 #else 683 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 0); 684 #endif 685 #endif 686 r128fb_wait(sc, 7); 687 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_PITCH, 688 sc->sc_width >> 3); 689 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_PITCH, 690 sc->sc_width >> 3); 691 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_OFFSET, 0); 692 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_OFFSET, 0); 693 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_WRITE_MASK, 694 0xffffffff); 695 696 switch (sc->sc_depth) { 697 case 8: 698 datatype = R128_GMC_DST_8BPP_CI; 699 d = R128_CRTC_COLOR_8BIT; 700 break; 701 case 15: 702 datatype = R128_GMC_DST_15BPP; 703 d = R128_CRTC_COLOR_15BIT; 704 break; 705 case 16: 706 datatype = R128_GMC_DST_16BPP; 707 d = R128_CRTC_COLOR_16BIT; 708 break; 709 case 24: 710 datatype = R128_GMC_DST_24BPP; 711 d = R128_CRTC_COLOR_24BIT; 712 break; 713 case 32: 714 datatype = R128_GMC_DST_32BPP; 715 d = R128_CRTC_COLOR_32BIT; 716 break; 717 default: 718 aprint_error("%s: unsupported depth %d\n", 719 device_xname(sc->sc_dev), sc->sc_depth); 720 return; 721 } 722 sc->sc_master_cntl = R128_GMC_CLR_CMP_CNTL_DIS | 723 R128_GMC_AUX_CLIP_DIS | datatype; 724 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_CRTC_GEN_CNTL); 725 DPRINTF("depth: %d\n", reg & R128_CRTC_PIX_WIDTH); 726 reg &= ~R128_CRTC_PIX_WIDTH; 727 reg |= d; 728 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_GEN_CNTL, reg); 729 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_PITCH, sc->sc_width >> 3); 730 r128fb_flush_engine(sc); 731 } 732 733 static void 734 r128fb_rectfill(struct r128fb_softc *sc, int x, int y, int wi, int he, 735 uint32_t colour) 736 { 737 738 r128fb_wait(sc, 5); 739 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 740 R128_GMC_BRUSH_SOLID_COLOR | 741 R128_GMC_SRC_DATATYPE_COLOR | 742 R128_ROP3_P | 743 sc->sc_master_cntl); 744 745 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_BRUSH_FRGD_CLR, 746 colour); 747 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, 748 R128_DST_X_LEFT_TO_RIGHT | R128_DST_Y_TOP_TO_BOTTOM); 749 /* now feed it coordinates */ 750 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 751 (x << 16) | y); 752 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 753 (wi << 16) | he); 754 } 755 756 static void 757 r128fb_bitblt(void *cookie, int xs, int ys, int xd, int yd, 758 int wi, int he, int rop) 759 { 760 struct r128fb_softc *sc = cookie; 761 uint32_t dp_cntl = 0; 762 763 r128fb_wait(sc, 5); 764 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 765 R128_GMC_BRUSH_SOLID_COLOR | 766 R128_GMC_SRC_DATATYPE_COLOR | 767 rop | 768 R128_DP_SRC_SOURCE_MEMORY | 769 sc->sc_master_cntl); 770 771 if (yd <= ys) { 772 dp_cntl = R128_DST_Y_TOP_TO_BOTTOM; 773 } else { 774 ys += he - 1; 775 yd += he - 1; 776 } 777 if (xd <= xs) { 778 dp_cntl |= R128_DST_X_LEFT_TO_RIGHT; 779 } else { 780 xs += wi - 1; 781 xd += wi - 1; 782 } 783 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, dp_cntl); 784 785 /* now feed it coordinates */ 786 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 787 (xs << 16) | ys); 788 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 789 (xd << 16) | yd); 790 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 791 (wi << 16) | he); 792 } 793 794 static void 795 r128fb_cursor(void *cookie, int on, int row, int col) 796 { 797 struct rasops_info *ri = cookie; 798 struct vcons_screen *scr = ri->ri_hw; 799 struct r128fb_softc *sc = scr->scr_cookie; 800 int x, y, wi, he; 801 802 wi = ri->ri_font->fontwidth; 803 he = ri->ri_font->fontheight; 804 805 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 806 x = ri->ri_ccol * wi + ri->ri_xorigin; 807 y = ri->ri_crow * he + ri->ri_yorigin; 808 if (ri->ri_flg & RI_CURSOR) { 809 r128fb_bitblt(sc, x, y, x, y, wi, he, R128_ROP3_Dn); 810 ri->ri_flg &= ~RI_CURSOR; 811 } 812 ri->ri_crow = row; 813 ri->ri_ccol = col; 814 if (on) { 815 x = ri->ri_ccol * wi + ri->ri_xorigin; 816 y = ri->ri_crow * he + ri->ri_yorigin; 817 r128fb_bitblt(sc, x, y, x, y, wi, he, R128_ROP3_Dn); 818 ri->ri_flg |= RI_CURSOR; 819 } 820 } else { 821 scr->scr_ri.ri_crow = row; 822 scr->scr_ri.ri_ccol = col; 823 scr->scr_ri.ri_flg &= ~RI_CURSOR; 824 } 825 826 } 827 828 static void 829 r128fb_putchar(void *cookie, int row, int col, u_int c, long attr) 830 { 831 struct rasops_info *ri = cookie; 832 struct wsdisplay_font *font = PICK_FONT(ri, c); 833 struct vcons_screen *scr = ri->ri_hw; 834 struct r128fb_softc *sc = scr->scr_cookie; 835 void *data; 836 uint32_t fg, bg; 837 int i, x, y, wi, he, offset; 838 839 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 840 return; 841 842 if (!CHAR_IN_FONT(c, font)) 843 return; 844 845 wi = font->fontwidth; 846 he = font->fontheight; 847 848 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 849 fg = ri->ri_devcmap[(attr >> 24) & 0xf]; 850 x = ri->ri_xorigin + col * wi; 851 y = ri->ri_yorigin + row * he; 852 853 if (c == 0x20) { 854 r128fb_rectfill(sc, x, y, wi, he, bg); 855 return; 856 } 857 858 data = WSFONT_GLYPH(c, font); 859 860 r128fb_wait(sc, 8); 861 862 bus_space_write_4(sc->sc_memt, sc->sc_regh, 863 R128_DP_GUI_MASTER_CNTL, 864 R128_GMC_BRUSH_SOLID_COLOR | 865 R128_GMC_SRC_DATATYPE_MONO_FG_BG | 866 R128_ROP3_S | 867 R128_DP_SRC_SOURCE_HOST_DATA | 868 R128_GMC_DST_CLIPPING | 869 sc->sc_master_cntl); 870 871 bus_space_write_4(sc->sc_memt, sc->sc_regh, 872 R128_DP_CNTL, 873 R128_DST_Y_TOP_TO_BOTTOM | 874 R128_DST_X_LEFT_TO_RIGHT); 875 876 bus_space_write_4(sc->sc_memt, sc->sc_regh, 877 R128_DP_SRC_FRGD_CLR, fg); 878 bus_space_write_4(sc->sc_memt, sc->sc_regh, 879 R128_DP_SRC_BKGD_CLR, bg); 880 881 /* 882 * The Rage 128 doesn't have anything to skip pixels 883 * when colour expanding but all coordinates 884 * are signed so we just clip the leading bytes and 885 * trailing bits away 886 */ 887 bus_space_write_4(sc->sc_memt, sc->sc_regh, 888 R128_SC_RIGHT, x + wi - 1); 889 bus_space_write_4(sc->sc_memt, sc->sc_regh, 890 R128_SC_LEFT, x); 891 892 /* needed? */ 893 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 0); 894 895 offset = 32 - (font->stride << 3); 896 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 897 ((x - offset) << 16) | y); 898 bus_space_write_4(sc->sc_memt, sc->sc_regh, 899 R128_DST_WIDTH_HEIGHT, (32 << 16) | he); 900 901 r128fb_wait(sc, he); 902 switch (font->stride) { 903 case 1: { 904 uint8_t *data8 = data; 905 uint32_t reg; 906 for (i = 0; i < he; i++) { 907 reg = *data8; 908 bus_space_write_stream_4(sc->sc_memt, 909 sc->sc_regh, R128_HOST_DATA0, reg); 910 data8++; 911 } 912 break; 913 } 914 case 2: { 915 uint16_t *data16 = data; 916 uint32_t reg; 917 for (i = 0; i < he; i++) { 918 reg = *data16; 919 bus_space_write_stream_4(sc->sc_memt, 920 sc->sc_regh, R128_HOST_DATA0, reg); 921 data16++; 922 } 923 break; 924 } 925 } 926 } 927 928 static void 929 r128fb_putchar_aa(void *cookie, int row, int col, u_int c, long attr) 930 { 931 struct rasops_info *ri = cookie; 932 struct wsdisplay_font *font = PICK_FONT(ri, c); 933 struct vcons_screen *scr = ri->ri_hw; 934 struct r128fb_softc *sc = scr->scr_cookie; 935 uint32_t bg, latch = 0, bg8, fg8, pixel; 936 int i, x, y, wi, he, r, g, b, aval; 937 int r1, g1, b1, r0, g0, b0, fgo, bgo; 938 uint8_t *data8; 939 int rv, cnt = 0; 940 941 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 942 return; 943 944 if (!CHAR_IN_FONT(c, font)) 945 return; 946 947 wi = font->fontwidth; 948 he = font->fontheight; 949 950 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 951 x = ri->ri_xorigin + col * wi; 952 y = ri->ri_yorigin + row * he; 953 if (c == 0x20) { 954 r128fb_rectfill(sc, x, y, wi, he, bg); 955 return; 956 } 957 958 rv = glyphcache_try(&sc->sc_gc, c, x, y, attr); 959 if (rv == GC_OK) 960 return; 961 962 data8 = WSFONT_GLYPH(c, font); 963 964 r128fb_wait(sc, 5); 965 bus_space_write_4(sc->sc_memt, sc->sc_regh, 966 R128_DP_GUI_MASTER_CNTL, 967 R128_GMC_BRUSH_SOLID_COLOR | 968 R128_GMC_SRC_DATATYPE_COLOR | 969 R128_ROP3_S | 970 R128_DP_SRC_SOURCE_HOST_DATA | 971 sc->sc_master_cntl); 972 973 bus_space_write_4(sc->sc_memt, sc->sc_regh, 974 R128_DP_CNTL, 975 R128_DST_Y_TOP_TO_BOTTOM | 976 R128_DST_X_LEFT_TO_RIGHT); 977 978 /* needed? */ 979 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 0); 980 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 981 (x << 16) | y); 982 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 983 (wi << 16) | he); 984 985 /* 986 * we need the RGB colours here, so get offsets into rasops_cmap 987 */ 988 fgo = ((attr >> 24) & 0xf) * 3; 989 bgo = ((attr >> 16) & 0xf) * 3; 990 991 r0 = rasops_cmap[bgo]; 992 r1 = rasops_cmap[fgo]; 993 g0 = rasops_cmap[bgo + 1]; 994 g1 = rasops_cmap[fgo + 1]; 995 b0 = rasops_cmap[bgo + 2]; 996 b1 = rasops_cmap[fgo + 2]; 997 #define R3G3B2(r, g, b) ((r & 0xe0) | ((g >> 3) & 0x1c) | (b >> 6)) 998 bg8 = R3G3B2(r0, g0, b0); 999 fg8 = R3G3B2(r1, g1, b1); 1000 1001 r128fb_wait(sc, 16); 1002 1003 for (i = 0; i < ri->ri_fontscale; i++) { 1004 aval = *data8; 1005 if (aval == 0) { 1006 pixel = bg8; 1007 } else if (aval == 255) { 1008 pixel = fg8; 1009 } else { 1010 r = aval * r1 + (255 - aval) * r0; 1011 g = aval * g1 + (255 - aval) * g0; 1012 b = aval * b1 + (255 - aval) * b0; 1013 pixel = ((r & 0xe000) >> 8) | 1014 ((g & 0xe000) >> 11) | 1015 ((b & 0xc000) >> 14); 1016 } 1017 latch = (latch << 8) | pixel; 1018 /* write in 32bit chunks */ 1019 if ((i & 3) == 3) { 1020 bus_space_write_stream_4(sc->sc_memt, sc->sc_regh, 1021 R128_HOST_DATA0, latch); 1022 /* 1023 * not strictly necessary, old data should be shifted 1024 * out 1025 */ 1026 latch = 0; 1027 cnt++; 1028 if (cnt > 15) { 1029 r128fb_wait(sc, 16); 1030 cnt = 0; 1031 } 1032 } 1033 data8++; 1034 } 1035 /* if we have pixels left in latch write them out */ 1036 if ((i & 3) != 0) { 1037 latch = latch << ((4 - (i & 3)) << 3); 1038 bus_space_write_stream_4(sc->sc_memt, sc->sc_regh, 1039 R128_HOST_DATA0, latch); 1040 } 1041 if (rv == GC_ADD) { 1042 glyphcache_add(&sc->sc_gc, c, x, y); 1043 } 1044 } 1045 1046 static void 1047 r128fb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 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 xs, xd, y, width, height; 1053 1054 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1055 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 1056 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 1057 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1058 width = ri->ri_font->fontwidth * ncols; 1059 height = ri->ri_font->fontheight; 1060 r128fb_bitblt(sc, xs, y, xd, y, width, height, R128_ROP3_S); 1061 } 1062 } 1063 1064 static void 1065 r128fb_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr) 1066 { 1067 struct rasops_info *ri = cookie; 1068 struct vcons_screen *scr = ri->ri_hw; 1069 struct r128fb_softc *sc = scr->scr_cookie; 1070 int32_t x, y, width, height, fg, bg, ul; 1071 1072 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1073 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 1074 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1075 width = ri->ri_font->fontwidth * ncols; 1076 height = ri->ri_font->fontheight; 1077 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 1078 1079 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 1080 } 1081 } 1082 1083 static void 1084 r128fb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 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, ys, yd, width, height; 1090 1091 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1092 x = ri->ri_xorigin; 1093 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 1094 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 1095 width = ri->ri_emuwidth; 1096 height = ri->ri_font->fontheight * nrows; 1097 r128fb_bitblt(sc, x, ys, x, yd, width, height, R128_ROP3_S); 1098 } 1099 } 1100 1101 static void 1102 r128fb_eraserows(void *cookie, int row, int nrows, long fillattr) 1103 { 1104 struct rasops_info *ri = cookie; 1105 struct vcons_screen *scr = ri->ri_hw; 1106 struct r128fb_softc *sc = scr->scr_cookie; 1107 int32_t x, y, width, height, fg, bg, ul; 1108 1109 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1110 x = ri->ri_xorigin; 1111 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1112 width = ri->ri_emuwidth; 1113 height = ri->ri_font->fontheight * nrows; 1114 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 1115 1116 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 1117 } 1118 } 1119 1120 static void 1121 r128fb_set_backlight(struct r128fb_softc *sc, int level) 1122 { 1123 uint32_t reg; 1124 1125 /* 1126 * should we do nothing when backlight is off, should we just store the 1127 * level and use it when turning back on or should we just flip sc_bl_on 1128 * and turn the backlight on? 1129 * For now turn it on so a crashed screensaver can't get the user stuck 1130 * with a dark screen as long as hotkeys work 1131 */ 1132 if (level > 255) level = 255; 1133 if (level < 0) level = 0; 1134 if (level == sc->sc_bl_level) 1135 return; 1136 sc->sc_bl_level = level; 1137 if (sc->sc_bl_on == 0) 1138 sc->sc_bl_on = 1; 1139 level = 255 - level; 1140 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 1141 reg &= ~R128_LEVEL_MASK; 1142 reg |= (level << R128_LEVEL_SHIFT); 1143 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 1144 DPRINTF("backlight level: %d reg %08x\n", level, reg); 1145 } 1146 1147 static void 1148 r128fb_switch_backlight(struct r128fb_softc *sc, int on) 1149 { 1150 uint32_t reg; 1151 int level; 1152 1153 if (on == sc->sc_bl_on) 1154 return; 1155 sc->sc_bl_on = on; 1156 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 1157 reg &= ~R128_LEVEL_MASK; 1158 level = on ? 255 - sc->sc_bl_level : 255; 1159 reg |= level << R128_LEVEL_SHIFT; 1160 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 1161 DPRINTF("backlight state: %d reg %08x\n", on, reg); 1162 } 1163 1164 1165 static void 1166 r128fb_brightness_up(device_t dev) 1167 { 1168 struct r128fb_softc *sc = device_private(dev); 1169 1170 r128fb_set_backlight(sc, sc->sc_bl_level + 8); 1171 } 1172 1173 static void 1174 r128fb_brightness_down(device_t dev) 1175 { 1176 struct r128fb_softc *sc = device_private(dev); 1177 1178 r128fb_set_backlight(sc, sc->sc_bl_level - 8); 1179 } 1180
Indexes created Sun Sep 28 12:09:53 GMT 2025