r128fb.c revision 1.41
1 /* $NetBSD: r128fb.c,v 1.41 2017/06/21 21:40:36 macallan Exp $ */ 2 3 /* 4 * Copyright (c) 2007, 2012 Michael Lorenz 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * A console driver for ATI Rage 128 graphics controllers 30 * tested on macppc only so far 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: r128fb.c,v 1.41 2017/06/21 21:40:36 macallan Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/kernel.h> 39 #include <sys/device.h> 40 #include <sys/malloc.h> 41 #include <sys/lwp.h> 42 #include <sys/kauth.h> 43 44 #include <dev/videomode/videomode.h> 45 46 #include <dev/pci/pcivar.h> 47 #include <dev/pci/pcireg.h> 48 #include <dev/pci/pcidevs.h> 49 #include <dev/pci/pciio.h> 50 #include <dev/pci/r128fbreg.h> 51 52 #include <dev/wscons/wsdisplayvar.h> 53 #include <dev/wscons/wsconsio.h> 54 #include <dev/wsfont/wsfont.h> 55 #include <dev/rasops/rasops.h> 56 #include <dev/wscons/wsdisplay_vconsvar.h> 57 #include <dev/pci/wsdisplay_pci.h> 58 #include <dev/wscons/wsdisplay_glyphcachevar.h> 59 60 #include <dev/i2c/i2cvar.h> 61 62 #include "opt_r128fb.h" 63 #include "opt_vcons.h" 64 65 #ifdef R128FB_DEBUG 66 #define DPRINTF printf 67 #else 68 #define DPRINTF while(0) printf 69 #endif 70 71 struct r128fb_softc { 72 device_t sc_dev; 73 74 pci_chipset_tag_t sc_pc; 75 pcitag_t sc_pcitag; 76 77 bus_space_tag_t sc_memt; 78 bus_space_tag_t sc_iot; 79 80 bus_space_handle_t sc_regh; 81 bus_addr_t sc_fb, sc_reg; 82 bus_size_t sc_fbsize, sc_regsize; 83 84 int sc_width, sc_height, sc_depth, sc_stride; 85 int sc_locked, sc_have_backlight, sc_bl_level, sc_bl_on; 86 struct vcons_screen sc_console_screen; 87 struct wsscreen_descr sc_defaultscreen_descr; 88 const struct wsscreen_descr *sc_screens[1]; 89 struct wsscreen_list sc_screenlist; 90 struct vcons_data vd; 91 int sc_mode; 92 u_char sc_cmap_red[256]; 93 u_char sc_cmap_green[256]; 94 u_char sc_cmap_blue[256]; 95 /* engine stuff */ 96 uint32_t sc_master_cntl; 97 glyphcache sc_gc; 98 }; 99 100 static int r128fb_match(device_t, cfdata_t, void *); 101 static void r128fb_attach(device_t, device_t, void *); 102 103 CFATTACH_DECL_NEW(r128fb, sizeof(struct r128fb_softc), 104 r128fb_match, r128fb_attach, NULL, NULL); 105 106 static int r128fb_ioctl(void *, void *, u_long, void *, int, 107 struct lwp *); 108 static paddr_t r128fb_mmap(void *, void *, off_t, int); 109 static void r128fb_init_screen(void *, struct vcons_screen *, int, long *); 110 111 static int r128fb_putcmap(struct r128fb_softc *, struct wsdisplay_cmap *); 112 static int r128fb_getcmap(struct r128fb_softc *, struct wsdisplay_cmap *); 113 static void r128fb_restore_palette(struct r128fb_softc *); 114 static int r128fb_putpalreg(struct r128fb_softc *, uint8_t, uint8_t, 115 uint8_t, uint8_t); 116 117 static void r128fb_init(struct r128fb_softc *); 118 static void r128fb_flush_engine(struct r128fb_softc *); 119 static void r128fb_rectfill(struct r128fb_softc *, int, int, int, int, 120 uint32_t); 121 static void r128fb_bitblt(void *, int, int, int, int, int, 122 int, int); 123 124 static void r128fb_cursor(void *, int, int, int); 125 static void r128fb_putchar(void *, int, int, u_int, long); 126 static void r128fb_putchar_aa(void *, int, int, u_int, long); 127 static void r128fb_copycols(void *, int, int, int, int); 128 static void r128fb_erasecols(void *, int, int, int, long); 129 static void r128fb_copyrows(void *, int, int, int); 130 static void r128fb_eraserows(void *, int, int, long); 131 132 static void r128fb_brightness_up(device_t); 133 static void r128fb_brightness_down(device_t); 134 /* set backlight level */ 135 static void r128fb_set_backlight(struct r128fb_softc *, int); 136 /* turn backlight on and off without messing with the level */ 137 static void r128fb_switch_backlight(struct r128fb_softc *, int); 138 139 struct wsdisplay_accessops r128fb_accessops = { 140 r128fb_ioctl, 141 r128fb_mmap, 142 NULL, /* alloc_screen */ 143 NULL, /* free_screen */ 144 NULL, /* show_screen */ 145 NULL, /* load_font */ 146 NULL, /* pollc */ 147 NULL /* scroll */ 148 }; 149 150 static inline void 151 r128fb_wait(struct r128fb_softc *sc, int slots) 152 { 153 uint32_t reg; 154 155 do { 156 reg = (bus_space_read_4(sc->sc_memt, sc->sc_regh, 157 R128_GUI_STAT) & R128_GUI_FIFOCNT_MASK); 158 } while (reg <= slots); 159 } 160 161 static void 162 r128fb_flush_engine(struct r128fb_softc *sc) 163 { 164 uint32_t reg; 165 166 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_PC_NGUI_CTLSTAT); 167 reg |= R128_PC_FLUSH_ALL; 168 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PC_NGUI_CTLSTAT, reg); 169 do { 170 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, 171 R128_PC_NGUI_CTLSTAT); 172 } while (reg & R128_PC_BUSY); 173 } 174 175 static int 176 r128fb_match(device_t parent, cfdata_t match, void *aux) 177 { 178 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 179 180 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY) 181 return 0; 182 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_ATI) 183 return 0; 184 185 /* only cards tested on so far - likely need a list */ 186 if ((PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_RAGE1AGP4XT) || 187 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_RAGE3AGP4XT) || 188 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_RAGEGLPCI) || 189 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_RAGE_MOB_M3_AGP)) 190 return 100; 191 return (0); 192 } 193 194 static void 195 r128fb_attach(device_t parent, device_t self, void *aux) 196 { 197 struct r128fb_softc *sc = device_private(self); 198 struct pci_attach_args *pa = aux; 199 struct rasops_info *ri; 200 bus_space_tag_t tag; 201 struct wsemuldisplaydev_attach_args aa; 202 prop_dictionary_t dict; 203 unsigned long defattr; 204 bool is_console = 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 | WSSCREEN_UNDERLINE | 266 WSSCREEN_RESIZE, 267 NULL 268 }; 269 sc->sc_screens[0] = &sc->sc_defaultscreen_descr; 270 sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens}; 271 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 272 sc->sc_locked = 0; 273 274 vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr, 275 &r128fb_accessops); 276 sc->vd.init_screen = r128fb_init_screen; 277 sc->vd.show_screen_cookie = &sc->sc_gc; 278 sc->vd.show_screen_cb = glyphcache_adapt; 279 280 /* init engine here */ 281 r128fb_init(sc); 282 283 ri = &sc->sc_console_screen.scr_ri; 284 285 sc->sc_gc.gc_bitblt = r128fb_bitblt; 286 sc->sc_gc.gc_blitcookie = sc; 287 sc->sc_gc.gc_rop = R128_ROP3_S; 288 if (is_console) { 289 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, 290 &defattr); 291 sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 292 293 r128fb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, 294 ri->ri_devcmap[(defattr >> 16) & 0xff]); 295 sc->sc_defaultscreen_descr.textops = &ri->ri_ops; 296 sc->sc_defaultscreen_descr.capabilities = ri->ri_caps; 297 sc->sc_defaultscreen_descr.nrows = ri->ri_rows; 298 sc->sc_defaultscreen_descr.ncols = ri->ri_cols; 299 glyphcache_init(&sc->sc_gc, sc->sc_height + 5, 300 (0x800000 / sc->sc_stride) - sc->sc_height - 5, 301 sc->sc_width, 302 ri->ri_font->fontwidth, 303 ri->ri_font->fontheight, 304 defattr); 305 wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0, 306 defattr); 307 vcons_replay_msgbuf(&sc->sc_console_screen); 308 } else { 309 /* 310 * since we're not the console we can postpone the rest 311 * until someone actually allocates a screen for us 312 */ 313 if (sc->sc_console_screen.scr_ri.ri_rows == 0) { 314 /* do some minimal setup to avoid weirdnesses later */ 315 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, 316 &defattr); 317 } else 318 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 319 glyphcache_init(&sc->sc_gc, sc->sc_height + 5, 320 (0x800000 / sc->sc_stride) - sc->sc_height - 5, 321 sc->sc_width, 322 ri->ri_font->fontwidth, 323 ri->ri_font->fontheight, 324 defattr); 325 } 326 327 j = 0; 328 rasops_get_cmap(ri, cmap, sizeof(cmap)); 329 for (i = 0; i < 256; i++) { 330 sc->sc_cmap_red[i] = cmap[j]; 331 sc->sc_cmap_green[i] = cmap[j + 1]; 332 sc->sc_cmap_blue[i] = cmap[j + 2]; 333 r128fb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]); 334 j += 3; 335 } 336 337 /* no suspend/resume support yet */ 338 if (!pmf_device_register(sc->sc_dev, NULL, NULL)) 339 aprint_error_dev(sc->sc_dev, 340 "couldn't establish power handler\n"); 341 342 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 343 DPRINTF("R128_LVDS_GEN_CNTL: %08x\n", reg); 344 if (reg & R128_LVDS_ON) { 345 sc->sc_have_backlight = 1; 346 sc->sc_bl_on = 1; 347 sc->sc_bl_level = 255 - 348 ((reg & R128_LEVEL_MASK) >> R128_LEVEL_SHIFT); 349 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_UP, 350 r128fb_brightness_up, TRUE); 351 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_DOWN, 352 r128fb_brightness_down, TRUE); 353 aprint_verbose("%s: LVDS output is active, enabling backlight" 354 " control\n", device_xname(self)); 355 } else 356 sc->sc_have_backlight = 0; 357 358 aa.console = is_console; 359 aa.scrdata = &sc->sc_screenlist; 360 aa.accessops = &r128fb_accessops; 361 aa.accesscookie = &sc->vd; 362 363 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 364 } 365 366 static int 367 r128fb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 368 struct lwp *l) 369 { 370 struct vcons_data *vd = v; 371 struct r128fb_softc *sc = vd->cookie; 372 struct wsdisplay_fbinfo *wdf; 373 struct vcons_screen *ms = vd->active; 374 struct wsdisplay_param *param; 375 376 switch (cmd) { 377 case WSDISPLAYIO_GTYPE: 378 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 379 return 0; 380 381 /* PCI config read/write passthrough. */ 382 case PCI_IOC_CFGREAD: 383 case PCI_IOC_CFGWRITE: 384 return pci_devioctl(sc->sc_pc, sc->sc_pcitag, 385 cmd, data, flag, l); 386 387 case WSDISPLAYIO_GET_BUSID: 388 return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc, 389 sc->sc_pcitag, data); 390 391 case WSDISPLAYIO_GINFO: 392 if (ms == NULL) 393 return ENODEV; 394 wdf = (void *)data; 395 wdf->height = ms->scr_ri.ri_height; 396 wdf->width = ms->scr_ri.ri_width; 397 wdf->depth = ms->scr_ri.ri_depth; 398 wdf->cmsize = 256; 399 return 0; 400 401 case WSDISPLAYIO_GETCMAP: 402 return r128fb_getcmap(sc, 403 (struct wsdisplay_cmap *)data); 404 405 case WSDISPLAYIO_PUTCMAP: 406 return r128fb_putcmap(sc, 407 (struct wsdisplay_cmap *)data); 408 409 case WSDISPLAYIO_LINEBYTES: 410 *(u_int *)data = sc->sc_stride; 411 return 0; 412 413 case WSDISPLAYIO_SMODE: { 414 int new_mode = *(int*)data; 415 if (new_mode != sc->sc_mode) { 416 sc->sc_mode = new_mode; 417 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 418 r128fb_init(sc); 419 r128fb_restore_palette(sc); 420 glyphcache_wipe(&sc->sc_gc); 421 r128fb_rectfill(sc, 0, 0, sc->sc_width, 422 sc->sc_height, ms->scr_ri.ri_devcmap[ 423 (ms->scr_defattr >> 16) & 0xff]); 424 vcons_redraw_screen(ms); 425 } 426 } 427 } 428 return 0; 429 430 case WSDISPLAYIO_GETPARAM: 431 param = (struct wsdisplay_param *)data; 432 if (sc->sc_have_backlight == 0) 433 return EPASSTHROUGH; 434 switch (param->param) { 435 case WSDISPLAYIO_PARAM_BRIGHTNESS: 436 param->min = 0; 437 param->max = 255; 438 param->curval = sc->sc_bl_level; 439 return 0; 440 case WSDISPLAYIO_PARAM_BACKLIGHT: 441 param->min = 0; 442 param->max = 1; 443 param->curval = sc->sc_bl_on; 444 return 0; 445 } 446 return EPASSTHROUGH; 447 448 case WSDISPLAYIO_SETPARAM: 449 param = (struct wsdisplay_param *)data; 450 if (sc->sc_have_backlight == 0) 451 return EPASSTHROUGH; 452 switch (param->param) { 453 case WSDISPLAYIO_PARAM_BRIGHTNESS: 454 r128fb_set_backlight(sc, param->curval); 455 return 0; 456 case WSDISPLAYIO_PARAM_BACKLIGHT: 457 r128fb_switch_backlight(sc, param->curval); 458 return 0; 459 } 460 return EPASSTHROUGH; 461 462 case WSDISPLAYIO_GET_EDID: { 463 struct wsdisplayio_edid_info *d = data; 464 return wsdisplayio_get_edid(sc->sc_dev, d); 465 } 466 467 case WSDISPLAYIO_GET_FBINFO: 468 { 469 struct wsdisplayio_fbinfo *fbi = data; 470 471 return wsdisplayio_get_fbinfo(&ms->scr_ri, fbi); 472 } 473 } 474 return EPASSTHROUGH; 475 } 476 477 static paddr_t 478 r128fb_mmap(void *v, void *vs, off_t offset, int prot) 479 { 480 struct vcons_data *vd = v; 481 struct r128fb_softc *sc = vd->cookie; 482 paddr_t pa; 483 484 /* 'regular' framebuffer mmap()ing */ 485 if (offset < sc->sc_fbsize) { 486 pa = bus_space_mmap(sc->sc_memt, sc->sc_fb + offset, 0, prot, 487 BUS_SPACE_MAP_LINEAR); 488 return pa; 489 } 490 491 /* 492 * restrict all other mappings to processes with superuser privileges 493 * or the kernel itself 494 */ 495 if (kauth_authorize_machdep(kauth_cred_get(), KAUTH_MACHDEP_UNMANAGEDMEM, 496 NULL, NULL, NULL, NULL) != 0) { 497 aprint_normal("%s: mmap() rejected.\n", 498 device_xname(sc->sc_dev)); 499 return -1; 500 } 501 502 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 503 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 504 BUS_SPACE_MAP_LINEAR); 505 return pa; 506 } 507 508 if ((offset >= sc->sc_reg) && 509 (offset < (sc->sc_reg + sc->sc_regsize))) { 510 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 511 BUS_SPACE_MAP_LINEAR); 512 return pa; 513 } 514 515 #ifdef PCI_MAGIC_IO_RANGE 516 /* allow mapping of IO space */ 517 if ((offset >= PCI_MAGIC_IO_RANGE) && 518 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 519 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 520 0, prot, BUS_SPACE_MAP_LINEAR); 521 return pa; 522 } 523 #endif 524 525 #ifdef OFB_ALLOW_OTHERS 526 if (offset >= 0x80000000) { 527 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 528 BUS_SPACE_MAP_LINEAR); 529 return pa; 530 } 531 #endif 532 return -1; 533 } 534 535 static void 536 r128fb_init_screen(void *cookie, struct vcons_screen *scr, 537 int existing, long *defattr) 538 { 539 struct r128fb_softc *sc = cookie; 540 struct rasops_info *ri = &scr->scr_ri; 541 542 ri->ri_depth = sc->sc_depth; 543 ri->ri_width = sc->sc_width; 544 ri->ri_height = sc->sc_height; 545 ri->ri_stride = sc->sc_stride; 546 ri->ri_flg = RI_CENTER; 547 if (sc->sc_depth == 8) 548 ri->ri_flg |= RI_8BIT_IS_RGB | RI_ENABLE_ALPHA | 549 RI_PREFER_ALPHA; 550 551 rasops_init(ri, 0, 0); 552 ri->ri_caps = WSSCREEN_WSCOLORS | WSSCREEN_HILIT | WSSCREEN_UNDERLINE | 553 WSSCREEN_RESIZE; 554 #ifdef VCONS_DRAW_INTR 555 scr->scr_flags |= VCONS_DONT_READ; 556 #endif 557 scr->scr_flags |= VCONS_LOADFONT; 558 559 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 560 sc->sc_width / ri->ri_font->fontwidth); 561 562 ri->ri_hw = scr; 563 ri->ri_ops.copyrows = r128fb_copyrows; 564 ri->ri_ops.copycols = r128fb_copycols; 565 ri->ri_ops.eraserows = r128fb_eraserows; 566 ri->ri_ops.erasecols = r128fb_erasecols; 567 ri->ri_ops.cursor = r128fb_cursor; 568 if (FONT_IS_ALPHA(ri->ri_font)) { 569 ri->ri_ops.putchar = r128fb_putchar_aa; 570 } else 571 ri->ri_ops.putchar = r128fb_putchar; 572 } 573 574 static int 575 r128fb_putcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 576 { 577 u_char *r, *g, *b; 578 u_int index = cm->index; 579 u_int count = cm->count; 580 int i, error; 581 u_char rbuf[256], gbuf[256], bbuf[256]; 582 583 #ifdef R128FB_DEBUG 584 aprint_debug("putcmap: %d %d\n",index, count); 585 #endif 586 if (cm->index >= 256 || cm->count > 256 || 587 (cm->index + cm->count) > 256) 588 return EINVAL; 589 error = copyin(cm->red, &rbuf[index], count); 590 if (error) 591 return error; 592 error = copyin(cm->green, &gbuf[index], count); 593 if (error) 594 return error; 595 error = copyin(cm->blue, &bbuf[index], count); 596 if (error) 597 return error; 598 599 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 600 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 601 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 602 603 r = &sc->sc_cmap_red[index]; 604 g = &sc->sc_cmap_green[index]; 605 b = &sc->sc_cmap_blue[index]; 606 607 for (i = 0; i < count; i++) { 608 r128fb_putpalreg(sc, index, *r, *g, *b); 609 index++; 610 r++, g++, b++; 611 } 612 return 0; 613 } 614 615 static int 616 r128fb_getcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 617 { 618 u_int index = cm->index; 619 u_int count = cm->count; 620 int error; 621 622 if (index >= 255 || count > 256 || index + count > 256) 623 return EINVAL; 624 625 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 626 if (error) 627 return error; 628 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 629 if (error) 630 return error; 631 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 632 if (error) 633 return error; 634 635 return 0; 636 } 637 638 static void 639 r128fb_restore_palette(struct r128fb_softc *sc) 640 { 641 int i; 642 643 for (i = 0; i < (1 << sc->sc_depth); i++) { 644 r128fb_putpalreg(sc, i, sc->sc_cmap_red[i], 645 sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); 646 } 647 } 648 649 static int 650 r128fb_putpalreg(struct r128fb_softc *sc, uint8_t idx, uint8_t r, uint8_t g, 651 uint8_t b) 652 { 653 uint32_t reg; 654 655 /* whack the DAC */ 656 reg = (r << 16) | (g << 8) | b; 657 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_INDEX, idx); 658 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_DATA, reg); 659 return 0; 660 } 661 662 static void 663 r128fb_init(struct r128fb_softc *sc) 664 { 665 uint32_t datatype, d, reg; 666 667 r128fb_flush_engine(sc); 668 669 r128fb_wait(sc, 9); 670 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_OFFSET, 0); 671 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_OFFSET, 0); 672 /* pitch is in units of 8 pixels */ 673 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_PITCH, 674 sc->sc_width >> 3); 675 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_AUX_SC_CNTL, 0); 676 bus_space_write_4(sc->sc_memt, sc->sc_regh, 677 R128_DEFAULT_SC_BOTTOM_RIGHT, 678 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 679 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_TOP_LEFT, 0); 680 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_BOTTOM_RIGHT, 681 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 682 bus_space_write_4(sc->sc_memt, sc->sc_regh, 683 R128_DEFAULT_SC_BOTTOM_RIGHT, 684 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 685 686 #if 0 687 #if BYTE_ORDER == BIG_ENDIAN 688 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 689 R128_HOST_BIG_ENDIAN_EN); 690 #else 691 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 0); 692 #endif 693 #endif 694 r128fb_wait(sc, 7); 695 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_PITCH, 696 sc->sc_width >> 3); 697 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_PITCH, 698 sc->sc_width >> 3); 699 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_OFFSET, 0); 700 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_OFFSET, 0); 701 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_WRITE_MASK, 702 0xffffffff); 703 704 switch (sc->sc_depth) { 705 case 8: 706 datatype = R128_GMC_DST_8BPP_CI; 707 d = R128_CRTC_COLOR_8BIT; 708 break; 709 case 15: 710 datatype = R128_GMC_DST_15BPP; 711 d = R128_CRTC_COLOR_15BIT; 712 break; 713 case 16: 714 datatype = R128_GMC_DST_16BPP; 715 d = R128_CRTC_COLOR_16BIT; 716 break; 717 case 24: 718 datatype = R128_GMC_DST_24BPP; 719 d = R128_CRTC_COLOR_24BIT; 720 break; 721 case 32: 722 datatype = R128_GMC_DST_32BPP; 723 d = R128_CRTC_COLOR_32BIT; 724 break; 725 default: 726 aprint_error("%s: unsupported depth %d\n", 727 device_xname(sc->sc_dev), sc->sc_depth); 728 return; 729 } 730 sc->sc_master_cntl = R128_GMC_CLR_CMP_CNTL_DIS | 731 R128_GMC_AUX_CLIP_DIS | datatype; 732 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_CRTC_GEN_CNTL); 733 DPRINTF("depth: %d\n", reg & R128_CRTC_PIX_WIDTH); 734 reg &= ~R128_CRTC_PIX_WIDTH; 735 reg |= d; 736 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_GEN_CNTL, reg); 737 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_PITCH, sc->sc_width >> 3); 738 r128fb_flush_engine(sc); 739 } 740 741 static void 742 r128fb_rectfill(struct r128fb_softc *sc, int x, int y, int wi, int he, 743 uint32_t colour) 744 { 745 746 r128fb_wait(sc, 5); 747 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 748 R128_GMC_BRUSH_SOLID_COLOR | 749 R128_GMC_SRC_DATATYPE_COLOR | 750 R128_ROP3_P | 751 sc->sc_master_cntl); 752 753 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_BRUSH_FRGD_CLR, 754 colour); 755 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, 756 R128_DST_X_LEFT_TO_RIGHT | R128_DST_Y_TOP_TO_BOTTOM); 757 /* now feed it coordinates */ 758 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 759 (x << 16) | y); 760 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 761 (wi << 16) | he); 762 } 763 764 static void 765 r128fb_bitblt(void *cookie, int xs, int ys, int xd, int yd, 766 int wi, int he, int rop) 767 { 768 struct r128fb_softc *sc = cookie; 769 uint32_t dp_cntl = 0; 770 771 r128fb_wait(sc, 5); 772 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 773 R128_GMC_BRUSH_SOLID_COLOR | 774 R128_GMC_SRC_DATATYPE_COLOR | 775 rop | 776 R128_DP_SRC_SOURCE_MEMORY | 777 sc->sc_master_cntl); 778 779 if (yd <= ys) { 780 dp_cntl = R128_DST_Y_TOP_TO_BOTTOM; 781 } else { 782 ys += he - 1; 783 yd += he - 1; 784 } 785 if (xd <= xs) { 786 dp_cntl |= R128_DST_X_LEFT_TO_RIGHT; 787 } else { 788 xs += wi - 1; 789 xd += wi - 1; 790 } 791 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, dp_cntl); 792 793 /* now feed it coordinates */ 794 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 795 (xs << 16) | ys); 796 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 797 (xd << 16) | yd); 798 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 799 (wi << 16) | he); 800 } 801 802 static void 803 r128fb_cursor(void *cookie, int on, int row, int col) 804 { 805 struct rasops_info *ri = cookie; 806 struct vcons_screen *scr = ri->ri_hw; 807 struct r128fb_softc *sc = scr->scr_cookie; 808 int x, y, wi, he; 809 810 wi = ri->ri_font->fontwidth; 811 he = ri->ri_font->fontheight; 812 813 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 814 if (ri->ri_flg & RI_CURSOR) { 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 ri->ri_crow = row; 821 ri->ri_ccol = col; 822 if (on) { 823 x = ri->ri_ccol * wi + ri->ri_xorigin; 824 y = ri->ri_crow * he + ri->ri_yorigin; 825 r128fb_bitblt(sc, x, y, x, y, wi, he, R128_ROP3_Dn); 826 ri->ri_flg |= RI_CURSOR; 827 } 828 } else { 829 scr->scr_ri.ri_crow = row; 830 scr->scr_ri.ri_ccol = col; 831 scr->scr_ri.ri_flg &= ~RI_CURSOR; 832 } 833 834 } 835 836 static void 837 r128fb_putchar(void *cookie, int row, int col, u_int c, long attr) 838 { 839 struct rasops_info *ri = cookie; 840 struct wsdisplay_font *font = PICK_FONT(ri, c); 841 struct vcons_screen *scr = ri->ri_hw; 842 struct r128fb_softc *sc = scr->scr_cookie; 843 void *data; 844 uint32_t fg, bg; 845 int i, x, y, wi, he, offset; 846 847 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 848 return; 849 850 if (!CHAR_IN_FONT(c, font)) 851 return; 852 853 wi = font->fontwidth; 854 he = font->fontheight; 855 856 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 857 fg = ri->ri_devcmap[(attr >> 24) & 0xf]; 858 x = ri->ri_xorigin + col * wi; 859 y = ri->ri_yorigin + row * he; 860 861 if (c == 0x20) { 862 r128fb_rectfill(sc, x, y, wi, he, bg); 863 return; 864 } 865 866 data = WSFONT_GLYPH(c, font); 867 868 r128fb_wait(sc, 8); 869 870 bus_space_write_4(sc->sc_memt, sc->sc_regh, 871 R128_DP_GUI_MASTER_CNTL, 872 R128_GMC_BRUSH_SOLID_COLOR | 873 R128_GMC_SRC_DATATYPE_MONO_FG_BG | 874 R128_ROP3_S | 875 R128_DP_SRC_SOURCE_HOST_DATA | 876 R128_GMC_DST_CLIPPING | 877 sc->sc_master_cntl); 878 879 bus_space_write_4(sc->sc_memt, sc->sc_regh, 880 R128_DP_CNTL, 881 R128_DST_Y_TOP_TO_BOTTOM | 882 R128_DST_X_LEFT_TO_RIGHT); 883 884 bus_space_write_4(sc->sc_memt, sc->sc_regh, 885 R128_DP_SRC_FRGD_CLR, fg); 886 bus_space_write_4(sc->sc_memt, sc->sc_regh, 887 R128_DP_SRC_BKGD_CLR, bg); 888 889 /* 890 * The Rage 128 doesn't have anything to skip pixels 891 * when colour expanding but all coordinates 892 * are signed so we just clip the leading bytes and 893 * trailing bits away 894 */ 895 bus_space_write_4(sc->sc_memt, sc->sc_regh, 896 R128_SC_RIGHT, x + wi - 1); 897 bus_space_write_4(sc->sc_memt, sc->sc_regh, 898 R128_SC_LEFT, x); 899 900 /* needed? */ 901 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 0); 902 903 offset = 32 - (font->stride << 3); 904 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 905 ((x - offset) << 16) | y); 906 bus_space_write_4(sc->sc_memt, sc->sc_regh, 907 R128_DST_WIDTH_HEIGHT, (32 << 16) | he); 908 909 r128fb_wait(sc, he); 910 switch (font->stride) { 911 case 1: { 912 uint8_t *data8 = data; 913 uint32_t reg; 914 for (i = 0; i < he; i++) { 915 reg = *data8; 916 bus_space_write_stream_4(sc->sc_memt, 917 sc->sc_regh, R128_HOST_DATA0, reg); 918 data8++; 919 } 920 break; 921 } 922 case 2: { 923 uint16_t *data16 = data; 924 uint32_t reg; 925 for (i = 0; i < he; i++) { 926 reg = *data16; 927 bus_space_write_stream_4(sc->sc_memt, 928 sc->sc_regh, R128_HOST_DATA0, reg); 929 data16++; 930 } 931 break; 932 } 933 } 934 } 935 936 static void 937 r128fb_putchar_aa(void *cookie, int row, int col, u_int c, long attr) 938 { 939 struct rasops_info *ri = cookie; 940 struct wsdisplay_font *font = PICK_FONT(ri, c); 941 struct vcons_screen *scr = ri->ri_hw; 942 struct r128fb_softc *sc = scr->scr_cookie; 943 uint32_t bg, latch = 0, bg8, fg8, pixel; 944 int i, x, y, wi, he, r, g, b, aval; 945 int r1, g1, b1, r0, g0, b0, fgo, bgo; 946 uint8_t *data8; 947 int rv, cnt = 0; 948 949 if (sc->sc_mode != WSDISPLAYIO_MODE_EMUL) 950 return; 951 952 if (!CHAR_IN_FONT(c, font)) 953 return; 954 955 wi = font->fontwidth; 956 he = font->fontheight; 957 958 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 959 x = ri->ri_xorigin + col * wi; 960 y = ri->ri_yorigin + row * he; 961 if (c == 0x20) { 962 r128fb_rectfill(sc, x, y, wi, he, bg); 963 return; 964 } 965 966 rv = glyphcache_try(&sc->sc_gc, c, x, y, attr); 967 if (rv == GC_OK) 968 return; 969 970 data8 = WSFONT_GLYPH(c, font); 971 972 r128fb_wait(sc, 5); 973 bus_space_write_4(sc->sc_memt, sc->sc_regh, 974 R128_DP_GUI_MASTER_CNTL, 975 R128_GMC_BRUSH_SOLID_COLOR | 976 R128_GMC_SRC_DATATYPE_COLOR | 977 R128_ROP3_S | 978 R128_DP_SRC_SOURCE_HOST_DATA | 979 sc->sc_master_cntl); 980 981 bus_space_write_4(sc->sc_memt, sc->sc_regh, 982 R128_DP_CNTL, 983 R128_DST_Y_TOP_TO_BOTTOM | 984 R128_DST_X_LEFT_TO_RIGHT); 985 986 /* needed? */ 987 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 0); 988 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 989 (x << 16) | y); 990 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 991 (wi << 16) | he); 992 993 /* 994 * we need the RGB colours here, so get offsets into rasops_cmap 995 */ 996 fgo = ((attr >> 24) & 0xf) * 3; 997 bgo = ((attr >> 16) & 0xf) * 3; 998 999 r0 = rasops_cmap[bgo]; 1000 r1 = rasops_cmap[fgo]; 1001 g0 = rasops_cmap[bgo + 1]; 1002 g1 = rasops_cmap[fgo + 1]; 1003 b0 = rasops_cmap[bgo + 2]; 1004 b1 = rasops_cmap[fgo + 2]; 1005 #define R3G3B2(r, g, b) ((r & 0xe0) | ((g >> 3) & 0x1c) | (b >> 6)) 1006 bg8 = R3G3B2(r0, g0, b0); 1007 fg8 = R3G3B2(r1, g1, b1); 1008 1009 r128fb_wait(sc, 16); 1010 1011 for (i = 0; i < ri->ri_fontscale; i++) { 1012 aval = *data8; 1013 if (aval == 0) { 1014 pixel = bg8; 1015 } else if (aval == 255) { 1016 pixel = fg8; 1017 } else { 1018 r = aval * r1 + (255 - aval) * r0; 1019 g = aval * g1 + (255 - aval) * g0; 1020 b = aval * b1 + (255 - aval) * b0; 1021 pixel = ((r & 0xe000) >> 8) | 1022 ((g & 0xe000) >> 11) | 1023 ((b & 0xc000) >> 14); 1024 } 1025 latch = (latch << 8) | pixel; 1026 /* write in 32bit chunks */ 1027 if ((i & 3) == 3) { 1028 bus_space_write_stream_4(sc->sc_memt, sc->sc_regh, 1029 R128_HOST_DATA0, latch); 1030 /* 1031 * not strictly necessary, old data should be shifted 1032 * out 1033 */ 1034 latch = 0; 1035 cnt++; 1036 if (cnt > 15) { 1037 r128fb_wait(sc, 16); 1038 cnt = 0; 1039 } 1040 } 1041 data8++; 1042 } 1043 /* if we have pixels left in latch write them out */ 1044 if ((i & 3) != 0) { 1045 latch = latch << ((4 - (i & 3)) << 3); 1046 bus_space_write_stream_4(sc->sc_memt, sc->sc_regh, 1047 R128_HOST_DATA0, latch); 1048 } 1049 if (rv == GC_ADD) { 1050 glyphcache_add(&sc->sc_gc, c, x, y); 1051 } 1052 } 1053 1054 static void 1055 r128fb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 1056 { 1057 struct rasops_info *ri = cookie; 1058 struct vcons_screen *scr = ri->ri_hw; 1059 struct r128fb_softc *sc = scr->scr_cookie; 1060 int32_t xs, xd, y, width, height; 1061 1062 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1063 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 1064 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 1065 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1066 width = ri->ri_font->fontwidth * ncols; 1067 height = ri->ri_font->fontheight; 1068 r128fb_bitblt(sc, xs, y, xd, y, width, height, R128_ROP3_S); 1069 } 1070 } 1071 1072 static void 1073 r128fb_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr) 1074 { 1075 struct rasops_info *ri = cookie; 1076 struct vcons_screen *scr = ri->ri_hw; 1077 struct r128fb_softc *sc = scr->scr_cookie; 1078 int32_t x, y, width, height, fg, bg, ul; 1079 1080 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1081 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 1082 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1083 width = ri->ri_font->fontwidth * ncols; 1084 height = ri->ri_font->fontheight; 1085 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 1086 1087 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 1088 } 1089 } 1090 1091 static void 1092 r128fb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 1093 { 1094 struct rasops_info *ri = cookie; 1095 struct vcons_screen *scr = ri->ri_hw; 1096 struct r128fb_softc *sc = scr->scr_cookie; 1097 int32_t x, ys, yd, width, height; 1098 1099 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1100 x = ri->ri_xorigin; 1101 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 1102 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 1103 width = ri->ri_emuwidth; 1104 height = ri->ri_font->fontheight * nrows; 1105 r128fb_bitblt(sc, x, ys, x, yd, width, height, R128_ROP3_S); 1106 } 1107 } 1108 1109 static void 1110 r128fb_eraserows(void *cookie, int row, int nrows, long fillattr) 1111 { 1112 struct rasops_info *ri = cookie; 1113 struct vcons_screen *scr = ri->ri_hw; 1114 struct r128fb_softc *sc = scr->scr_cookie; 1115 int32_t x, y, width, height, fg, bg, ul; 1116 1117 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 1118 x = ri->ri_xorigin; 1119 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 1120 width = ri->ri_emuwidth; 1121 height = ri->ri_font->fontheight * nrows; 1122 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 1123 1124 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 1125 } 1126 } 1127 1128 static void 1129 r128fb_set_backlight(struct r128fb_softc *sc, int level) 1130 { 1131 uint32_t reg; 1132 1133 /* 1134 * should we do nothing when backlight is off, should we just store the 1135 * level and use it when turning back on or should we just flip sc_bl_on 1136 * and turn the backlight on? 1137 * For now turn it on so a crashed screensaver can't get the user stuck 1138 * with a dark screen as long as hotkeys work 1139 */ 1140 if (level > 255) level = 255; 1141 if (level < 0) level = 0; 1142 if (level == sc->sc_bl_level) 1143 return; 1144 sc->sc_bl_level = level; 1145 if (sc->sc_bl_on == 0) 1146 sc->sc_bl_on = 1; 1147 level = 255 - level; 1148 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 1149 reg &= ~R128_LEVEL_MASK; 1150 reg |= (level << R128_LEVEL_SHIFT); 1151 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 1152 DPRINTF("backlight level: %d reg %08x\n", level, reg); 1153 } 1154 1155 static void 1156 r128fb_switch_backlight(struct r128fb_softc *sc, int on) 1157 { 1158 uint32_t reg; 1159 int level; 1160 1161 if (on == sc->sc_bl_on) 1162 return; 1163 sc->sc_bl_on = on; 1164 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 1165 reg &= ~R128_LEVEL_MASK; 1166 level = on ? 255 - sc->sc_bl_level : 255; 1167 reg |= level << R128_LEVEL_SHIFT; 1168 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 1169 DPRINTF("backlight state: %d reg %08x\n", on, reg); 1170 } 1171 1172 1173 static void 1174 r128fb_brightness_up(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 1181 static void 1182 r128fb_brightness_down(device_t dev) 1183 { 1184 struct r128fb_softc *sc = device_private(dev); 1185 1186 r128fb_set_backlight(sc, sc->sc_bl_level - 8); 1187 } 1188
Indexes created Mon Sep 29 03:10:08 GMT 2025