r128fb.c revision 1.21
1 /* $NetBSD: r128fb.c,v 1.21 2011/02/15 04:06:43 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 1.21 2011/02/15 04:06:43 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 63 #ifdef R128FB_DEBUG 64 #define DPRINTF printf 65 #else 66 #define DPRINTF while(0) printf 67 #endif 68 69 struct r128fb_softc { 70 device_t sc_dev; 71 72 pci_chipset_tag_t sc_pc; 73 pcitag_t sc_pcitag; 74 75 bus_space_tag_t sc_memt; 76 bus_space_tag_t sc_iot; 77 78 bus_space_handle_t sc_regh; 79 bus_addr_t sc_fb, sc_reg; 80 bus_size_t sc_fbsize, sc_regsize; 81 82 int sc_width, sc_height, sc_depth, sc_stride; 83 int sc_locked, sc_have_backlight, sc_bl_level, sc_bl_on; 84 struct vcons_screen sc_console_screen; 85 struct wsscreen_descr sc_defaultscreen_descr; 86 const struct wsscreen_descr *sc_screens[1]; 87 struct wsscreen_list sc_screenlist; 88 struct vcons_data vd; 89 int sc_mode; 90 u_char sc_cmap_red[256]; 91 u_char sc_cmap_green[256]; 92 u_char sc_cmap_blue[256]; 93 /* engine stuff */ 94 uint32_t sc_master_cntl; 95 }; 96 97 static int r128fb_match(device_t, cfdata_t, void *); 98 static void r128fb_attach(device_t, device_t, void *); 99 100 CFATTACH_DECL_NEW(r128fb, sizeof(struct r128fb_softc), 101 r128fb_match, r128fb_attach, NULL, NULL); 102 103 extern const u_char rasops_cmap[768]; 104 105 static int r128fb_ioctl(void *, void *, u_long, void *, int, 106 struct lwp *); 107 static paddr_t r128fb_mmap(void *, void *, off_t, int); 108 static void r128fb_init_screen(void *, struct vcons_screen *, int, long *); 109 110 static int r128fb_putcmap(struct r128fb_softc *, struct wsdisplay_cmap *); 111 static int r128fb_getcmap(struct r128fb_softc *, struct wsdisplay_cmap *); 112 static void r128fb_restore_palette(struct r128fb_softc *); 113 static int r128fb_putpalreg(struct r128fb_softc *, uint8_t, uint8_t, 114 uint8_t, uint8_t); 115 116 static void r128fb_init(struct r128fb_softc *); 117 static void r128fb_flush_engine(struct r128fb_softc *); 118 static void r128fb_rectfill(struct r128fb_softc *, int, int, int, int, 119 uint32_t); 120 static void r128fb_bitblt(struct r128fb_softc *, int, int, int, int, int, 121 int, int); 122 123 static void r128fb_cursor(void *, int, int, int); 124 static void r128fb_putchar(void *, int, int, u_int, long); 125 static void r128fb_copycols(void *, int, int, int, int); 126 static void r128fb_erasecols(void *, int, int, int, long); 127 static void r128fb_copyrows(void *, int, int, int); 128 static void r128fb_eraserows(void *, int, int, long); 129 130 static void r128fb_brightness_up(device_t); 131 static void r128fb_brightness_down(device_t); 132 /* set backlight level */ 133 static void r128fb_set_backlight(struct r128fb_softc *, int); 134 /* turn backlight on and off without messing with the level */ 135 static void r128fb_switch_backlight(struct r128fb_softc *, int); 136 137 struct wsdisplay_accessops r128fb_accessops = { 138 r128fb_ioctl, 139 r128fb_mmap, 140 NULL, /* alloc_screen */ 141 NULL, /* free_screen */ 142 NULL, /* show_screen */ 143 NULL, /* load_font */ 144 NULL, /* pollc */ 145 NULL /* scroll */ 146 }; 147 148 static inline void 149 r128fb_wait(struct r128fb_softc *sc, int slots) 150 { 151 uint32_t reg; 152 153 do { 154 reg = (bus_space_read_4(sc->sc_memt, sc->sc_regh, 155 R128_GUI_STAT) & R128_GUI_FIFOCNT_MASK); 156 } while (reg <= slots); 157 } 158 159 static void 160 r128fb_flush_engine(struct r128fb_softc *sc) 161 { 162 uint32_t reg; 163 164 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_PC_NGUI_CTLSTAT); 165 reg |= R128_PC_FLUSH_ALL; 166 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PC_NGUI_CTLSTAT, reg); 167 do { 168 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, 169 R128_PC_NGUI_CTLSTAT); 170 } while (reg & R128_PC_BUSY); 171 } 172 173 static int 174 r128fb_match(device_t parent, cfdata_t match, void *aux) 175 { 176 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 177 178 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY) 179 return 0; 180 if (PCI_VENDOR(pa->pa_id) != PCI_VENDOR_ATI) 181 return 0; 182 183 /* only cards tested on so far - likely need a list */ 184 if ((PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_RAGE1AGP4XT) || 185 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_RAGE3AGP4XT) || 186 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_RAGEGLPCI) || 187 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATI_RAGE_MOB_M3_AGP)) 188 return 100; 189 return (0); 190 } 191 192 static void 193 r128fb_attach(device_t parent, device_t self, void *aux) 194 { 195 struct r128fb_softc *sc = device_private(self); 196 struct pci_attach_args *pa = aux; 197 struct rasops_info *ri; 198 bus_space_tag_t tag; 199 char devinfo[256]; 200 struct wsemuldisplaydev_attach_args aa; 201 prop_dictionary_t dict; 202 unsigned long defattr; 203 bool is_console; 204 int i, j; 205 uint32_t reg, flags; 206 207 sc->sc_pc = pa->pa_pc; 208 sc->sc_pcitag = pa->pa_tag; 209 sc->sc_memt = pa->pa_memt; 210 sc->sc_iot = pa->pa_iot; 211 sc->sc_dev = self; 212 213 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 214 aprint_normal(": %s\n", devinfo); 215 216 /* fill in parameters from properties */ 217 dict = device_properties(self); 218 if (!prop_dictionary_get_uint32(dict, "width", &sc->sc_width)) { 219 aprint_error("%s: no width property\n", device_xname(self)); 220 return; 221 } 222 if (!prop_dictionary_get_uint32(dict, "height", &sc->sc_height)) { 223 aprint_error("%s: no height property\n", device_xname(self)); 224 return; 225 } 226 if (!prop_dictionary_get_uint32(dict, "depth", &sc->sc_depth)) { 227 aprint_error("%s: no depth property\n", device_xname(self)); 228 return; 229 } 230 if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->sc_stride)) { 231 aprint_error("%s: no linebytes property\n", 232 device_xname(self)); 233 return; 234 } 235 236 prop_dictionary_get_bool(dict, "is_console", &is_console); 237 238 if (pci_mapreg_info(pa->pa_pc, pa->pa_tag, 0x10, PCI_MAPREG_TYPE_MEM, 239 &sc->sc_fb, &sc->sc_fbsize, &flags)) { 240 aprint_error("%s: failed to map the frame buffer.\n", 241 device_xname(sc->sc_dev)); 242 } 243 244 if (pci_mapreg_map(pa, 0x18, PCI_MAPREG_TYPE_MEM, 0, 245 &tag, &sc->sc_regh, &sc->sc_reg, &sc->sc_regsize)) { 246 aprint_error("%s: failed to map registers.\n", 247 device_xname(sc->sc_dev)); 248 } 249 250 aprint_normal("%s: %d MB aperture at 0x%08x\n", device_xname(self), 251 (int)(sc->sc_fbsize >> 20), (uint32_t)sc->sc_fb); 252 253 sc->sc_defaultscreen_descr = (struct wsscreen_descr){ 254 "default", 255 0, 0, 256 NULL, 257 8, 16, 258 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 259 NULL 260 }; 261 sc->sc_screens[0] = &sc->sc_defaultscreen_descr; 262 sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens}; 263 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 264 sc->sc_locked = 0; 265 266 vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr, 267 &r128fb_accessops); 268 sc->vd.init_screen = r128fb_init_screen; 269 270 /* init engine here */ 271 r128fb_init(sc); 272 273 ri = &sc->sc_console_screen.scr_ri; 274 275 j = 0; 276 for (i = 0; i < (1 << sc->sc_depth); i++) { 277 278 sc->sc_cmap_red[i] = rasops_cmap[j]; 279 sc->sc_cmap_green[i] = rasops_cmap[j + 1]; 280 sc->sc_cmap_blue[i] = rasops_cmap[j + 2]; 281 r128fb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 282 rasops_cmap[j + 2]); 283 j += 3; 284 } 285 286 if (is_console) { 287 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, 288 &defattr); 289 sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 290 291 r128fb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, 292 ri->ri_devcmap[(defattr >> 16) & 0xff]); 293 sc->sc_defaultscreen_descr.textops = &ri->ri_ops; 294 sc->sc_defaultscreen_descr.capabilities = ri->ri_caps; 295 sc->sc_defaultscreen_descr.nrows = ri->ri_rows; 296 sc->sc_defaultscreen_descr.ncols = ri->ri_cols; 297 wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0, 298 defattr); 299 vcons_replay_msgbuf(&sc->sc_console_screen); 300 } else { 301 /* 302 * since we're not the console we can postpone the rest 303 * until someone actually allocates a screen for us 304 */ 305 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 306 } 307 308 /* no suspend/resume support yet */ 309 pmf_device_register(sc->sc_dev, NULL, NULL); 310 311 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 312 DPRINTF("R128_LVDS_GEN_CNTL: %08x\n", reg); 313 if (reg & R128_LVDS_ON) { 314 sc->sc_have_backlight = 1; 315 sc->sc_bl_on = 1; 316 sc->sc_bl_level = 255 - 317 ((reg & R128_LEVEL_MASK) >> R128_LEVEL_SHIFT); 318 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_UP, 319 r128fb_brightness_up, TRUE); 320 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_DOWN, 321 r128fb_brightness_down, TRUE); 322 aprint_verbose("%s: LVDS output is active, enabling backlight" 323 " control\n", device_xname(self)); 324 } else 325 sc->sc_have_backlight = 0; 326 327 aa.console = is_console; 328 aa.scrdata = &sc->sc_screenlist; 329 aa.accessops = &r128fb_accessops; 330 aa.accesscookie = &sc->vd; 331 332 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 333 } 334 335 static int 336 r128fb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 337 struct lwp *l) 338 { 339 struct vcons_data *vd = v; 340 struct r128fb_softc *sc = vd->cookie; 341 struct wsdisplay_fbinfo *wdf; 342 struct vcons_screen *ms = vd->active; 343 struct wsdisplay_param *param; 344 345 switch (cmd) { 346 case WSDISPLAYIO_GTYPE: 347 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 348 return 0; 349 350 /* PCI config read/write passthrough. */ 351 case PCI_IOC_CFGREAD: 352 case PCI_IOC_CFGWRITE: 353 return pci_devioctl(sc->sc_pc, sc->sc_pcitag, 354 cmd, data, flag, l); 355 356 case WSDISPLAYIO_GET_BUSID: 357 return wsdisplayio_busid_pci(sc->sc_dev, sc->sc_pc, sc->sc_pcitag, data); 358 359 case WSDISPLAYIO_GINFO: 360 if (ms == NULL) 361 return ENODEV; 362 wdf = (void *)data; 363 wdf->height = ms->scr_ri.ri_height; 364 wdf->width = ms->scr_ri.ri_width; 365 wdf->depth = ms->scr_ri.ri_depth; 366 wdf->cmsize = 256; 367 return 0; 368 369 case WSDISPLAYIO_GETCMAP: 370 return r128fb_getcmap(sc, 371 (struct wsdisplay_cmap *)data); 372 373 case WSDISPLAYIO_PUTCMAP: 374 return r128fb_putcmap(sc, 375 (struct wsdisplay_cmap *)data); 376 377 case WSDISPLAYIO_LINEBYTES: 378 *(u_int *)data = sc->sc_stride; 379 return 0; 380 381 case WSDISPLAYIO_SMODE: { 382 int new_mode = *(int*)data; 383 if (new_mode != sc->sc_mode) { 384 sc->sc_mode = new_mode; 385 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 386 r128fb_init(sc); 387 r128fb_restore_palette(sc); 388 r128fb_rectfill(sc, 0, 0, sc->sc_width, 389 sc->sc_height, ms->scr_ri.ri_devcmap[ 390 (ms->scr_defattr >> 16) & 0xff]); 391 vcons_redraw_screen(ms); 392 } 393 } 394 } 395 return 0; 396 397 case WSDISPLAYIO_GETPARAM: 398 param = (struct wsdisplay_param *)data; 399 if (sc->sc_have_backlight == 0) 400 return EPASSTHROUGH; 401 switch (param->param) { 402 case WSDISPLAYIO_PARAM_BRIGHTNESS: 403 param->min = 0; 404 param->max = 255; 405 param->curval = sc->sc_bl_level; 406 return 0; 407 case WSDISPLAYIO_PARAM_BACKLIGHT: 408 param->min = 0; 409 param->max = 1; 410 param->curval = sc->sc_bl_on; 411 return 0; 412 } 413 return EPASSTHROUGH; 414 415 case WSDISPLAYIO_SETPARAM: 416 param = (struct wsdisplay_param *)data; 417 if (sc->sc_have_backlight == 0) 418 return EPASSTHROUGH; 419 switch (param->param) { 420 case WSDISPLAYIO_PARAM_BRIGHTNESS: 421 r128fb_set_backlight(sc, param->curval); 422 return 0; 423 case WSDISPLAYIO_PARAM_BACKLIGHT: 424 r128fb_switch_backlight(sc, param->curval); 425 return 0; 426 } 427 return EPASSTHROUGH; 428 } 429 return EPASSTHROUGH; 430 } 431 432 static paddr_t 433 r128fb_mmap(void *v, void *vs, off_t offset, int prot) 434 { 435 struct vcons_data *vd = v; 436 struct r128fb_softc *sc = vd->cookie; 437 paddr_t pa; 438 439 /* 'regular' framebuffer mmap()ing */ 440 if (offset < sc->sc_fbsize) { 441 pa = bus_space_mmap(sc->sc_memt, sc->sc_fb + offset, 0, prot, 442 BUS_SPACE_MAP_LINEAR); 443 return pa; 444 } 445 446 /* 447 * restrict all other mappings to processes with superuser privileges 448 * or the kernel itself 449 */ 450 if (kauth_authorize_generic(kauth_cred_get(), KAUTH_GENERIC_ISSUSER, 451 NULL) != 0) { 452 aprint_normal("%s: mmap() rejected.\n", 453 device_xname(sc->sc_dev)); 454 return -1; 455 } 456 457 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 458 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 459 BUS_SPACE_MAP_LINEAR); 460 return pa; 461 } 462 463 if ((offset >= sc->sc_reg) && 464 (offset < (sc->sc_reg + sc->sc_regsize))) { 465 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 466 BUS_SPACE_MAP_LINEAR); 467 return pa; 468 } 469 470 #ifdef PCI_MAGIC_IO_RANGE 471 /* allow mapping of IO space */ 472 if ((offset >= PCI_MAGIC_IO_RANGE) && 473 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 474 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 475 0, prot, BUS_SPACE_MAP_LINEAR); 476 return pa; 477 } 478 #endif 479 480 #ifdef OFB_ALLOW_OTHERS 481 if (offset >= 0x80000000) { 482 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 483 BUS_SPACE_MAP_LINEAR); 484 return pa; 485 } 486 #endif 487 return -1; 488 } 489 490 static void 491 r128fb_init_screen(void *cookie, struct vcons_screen *scr, 492 int existing, long *defattr) 493 { 494 struct r128fb_softc *sc = cookie; 495 struct rasops_info *ri = &scr->scr_ri; 496 497 ri->ri_depth = sc->sc_depth; 498 ri->ri_width = sc->sc_width; 499 ri->ri_height = sc->sc_height; 500 ri->ri_stride = sc->sc_stride; 501 ri->ri_flg = RI_CENTER; 502 503 rasops_init(ri, sc->sc_height / 8, sc->sc_width / 8); 504 ri->ri_caps = WSSCREEN_WSCOLORS; 505 506 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 507 sc->sc_width / ri->ri_font->fontwidth); 508 509 ri->ri_hw = scr; 510 ri->ri_ops.copyrows = r128fb_copyrows; 511 ri->ri_ops.copycols = r128fb_copycols; 512 ri->ri_ops.eraserows = r128fb_eraserows; 513 ri->ri_ops.erasecols = r128fb_erasecols; 514 ri->ri_ops.cursor = r128fb_cursor; 515 ri->ri_ops.putchar = r128fb_putchar; 516 } 517 518 static int 519 r128fb_putcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 520 { 521 u_char *r, *g, *b; 522 u_int index = cm->index; 523 u_int count = cm->count; 524 int i, error; 525 u_char rbuf[256], gbuf[256], bbuf[256]; 526 527 #ifdef R128FB_DEBUG 528 aprint_debug("putcmap: %d %d\n",index, count); 529 #endif 530 if (cm->index >= 256 || cm->count > 256 || 531 (cm->index + cm->count) > 256) 532 return EINVAL; 533 error = copyin(cm->red, &rbuf[index], count); 534 if (error) 535 return error; 536 error = copyin(cm->green, &gbuf[index], count); 537 if (error) 538 return error; 539 error = copyin(cm->blue, &bbuf[index], count); 540 if (error) 541 return error; 542 543 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 544 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 545 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 546 547 r = &sc->sc_cmap_red[index]; 548 g = &sc->sc_cmap_green[index]; 549 b = &sc->sc_cmap_blue[index]; 550 551 for (i = 0; i < count; i++) { 552 r128fb_putpalreg(sc, index, *r, *g, *b); 553 index++; 554 r++, g++, b++; 555 } 556 return 0; 557 } 558 559 static int 560 r128fb_getcmap(struct r128fb_softc *sc, struct wsdisplay_cmap *cm) 561 { 562 u_int index = cm->index; 563 u_int count = cm->count; 564 int error; 565 566 if (index >= 255 || count > 256 || index + count > 256) 567 return EINVAL; 568 569 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 570 if (error) 571 return error; 572 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 573 if (error) 574 return error; 575 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 576 if (error) 577 return error; 578 579 return 0; 580 } 581 582 static void 583 r128fb_restore_palette(struct r128fb_softc *sc) 584 { 585 int i; 586 587 for (i = 0; i < (1 << sc->sc_depth); i++) { 588 r128fb_putpalreg(sc, i, sc->sc_cmap_red[i], 589 sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); 590 } 591 } 592 593 static int 594 r128fb_putpalreg(struct r128fb_softc *sc, uint8_t idx, uint8_t r, uint8_t g, 595 uint8_t b) 596 { 597 uint32_t reg; 598 599 /* whack the DAC */ 600 reg = (r << 16) | (g << 8) | b; 601 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_INDEX, idx); 602 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_PALETTE_DATA, reg); 603 return 0; 604 } 605 606 static void 607 r128fb_init(struct r128fb_softc *sc) 608 { 609 uint32_t datatype; 610 611 r128fb_flush_engine(sc); 612 613 r128fb_wait(sc, 9); 614 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_CRTC_OFFSET, 0); 615 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_OFFSET, 0); 616 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DEFAULT_PITCH, 617 sc->sc_stride >> 3); 618 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_AUX_SC_CNTL, 0); 619 bus_space_write_4(sc->sc_memt, sc->sc_regh, 620 R128_DEFAULT_SC_BOTTOM_RIGHT, 621 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 622 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_TOP_LEFT, 0); 623 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SC_BOTTOM_RIGHT, 624 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 625 bus_space_write_4(sc->sc_memt, sc->sc_regh, 626 R128_DEFAULT_SC_BOTTOM_RIGHT, 627 R128_DEFAULT_SC_RIGHT_MAX | R128_DEFAULT_SC_BOTTOM_MAX); 628 629 #if BYTE_ORDER == BIG_ENDIAN 630 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 631 R128_HOST_BIG_ENDIAN_EN); 632 #else 633 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_DATATYPE, 0); 634 #endif 635 636 r128fb_wait(sc, 5); 637 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_PITCH, 638 sc->sc_stride >> 3); 639 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_PITCH, 640 sc->sc_stride >> 3); 641 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_OFFSET, 0); 642 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_OFFSET, 0); 643 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_WRITE_MASK, 644 0xffffffff); 645 646 switch (sc->sc_depth) { 647 case 8: 648 datatype = R128_GMC_DST_8BPP_CI; 649 break; 650 case 15: 651 datatype = R128_GMC_DST_15BPP; 652 break; 653 case 16: 654 datatype = R128_GMC_DST_16BPP; 655 break; 656 case 24: 657 datatype = R128_GMC_DST_24BPP; 658 break; 659 case 32: 660 datatype = R128_GMC_DST_32BPP; 661 break; 662 default: 663 aprint_error("%s: unsupported depth %d\n", 664 device_xname(sc->sc_dev), sc->sc_depth); 665 return; 666 } 667 sc->sc_master_cntl = R128_GMC_CLR_CMP_CNTL_DIS | 668 R128_GMC_AUX_CLIP_DIS | datatype; 669 670 r128fb_flush_engine(sc); 671 } 672 673 static void 674 r128fb_rectfill(struct r128fb_softc *sc, int x, int y, int wi, int he, 675 uint32_t colour) 676 { 677 678 r128fb_wait(sc, 5); 679 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 680 R128_GMC_BRUSH_SOLID_COLOR | 681 R128_GMC_SRC_DATATYPE_COLOR | 682 R128_ROP3_P | 683 sc->sc_master_cntl); 684 685 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_BRUSH_FRGD_CLR, 686 colour); 687 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, 688 R128_DST_X_LEFT_TO_RIGHT | R128_DST_Y_TOP_TO_BOTTOM); 689 /* now feed it coordinates */ 690 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 691 (x << 16) | y); 692 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 693 (wi << 16) | he); 694 } 695 696 static void 697 r128fb_bitblt(struct r128fb_softc *sc, int xs, int ys, int xd, int yd, 698 int wi, int he, int rop) 699 { 700 uint32_t dp_cntl = 0; 701 702 r128fb_wait(sc, 5); 703 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_GUI_MASTER_CNTL, 704 R128_GMC_BRUSH_SOLID_COLOR | 705 R128_GMC_SRC_DATATYPE_COLOR | 706 rop | 707 R128_DP_SRC_SOURCE_MEMORY | 708 sc->sc_master_cntl); 709 710 if (yd <= ys) { 711 dp_cntl = R128_DST_Y_TOP_TO_BOTTOM; 712 } else { 713 ys += he - 1; 714 yd += he - 1; 715 } 716 if (xd <= xs) { 717 dp_cntl |= R128_DST_X_LEFT_TO_RIGHT; 718 } else { 719 xs += wi - 1; 720 xd += wi - 1; 721 } 722 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DP_CNTL, dp_cntl); 723 724 /* now feed it coordinates */ 725 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_SRC_X_Y, 726 (xs << 16) | ys); 727 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_X_Y, 728 (xd << 16) | yd); 729 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_DST_WIDTH_HEIGHT, 730 (wi << 16) | he); 731 } 732 733 static void 734 r128fb_cursor(void *cookie, int on, int row, int col) 735 { 736 struct rasops_info *ri = cookie; 737 struct vcons_screen *scr = ri->ri_hw; 738 struct r128fb_softc *sc = scr->scr_cookie; 739 int x, y, wi, he; 740 741 wi = ri->ri_font->fontwidth; 742 he = ri->ri_font->fontheight; 743 744 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 745 x = ri->ri_ccol * wi + ri->ri_xorigin; 746 y = ri->ri_crow * he + ri->ri_yorigin; 747 if (ri->ri_flg & RI_CURSOR) { 748 r128fb_bitblt(sc, x, y, x, y, wi, he, R128_ROP3_Dn); 749 ri->ri_flg &= ~RI_CURSOR; 750 } 751 ri->ri_crow = row; 752 ri->ri_ccol = col; 753 if (on) { 754 x = ri->ri_ccol * wi + ri->ri_xorigin; 755 y = ri->ri_crow * he + ri->ri_yorigin; 756 r128fb_bitblt(sc, x, y, x, y, wi, he, R128_ROP3_Dn); 757 ri->ri_flg |= RI_CURSOR; 758 } 759 } else { 760 scr->scr_ri.ri_crow = row; 761 scr->scr_ri.ri_ccol = col; 762 scr->scr_ri.ri_flg &= ~RI_CURSOR; 763 } 764 765 } 766 767 static void 768 r128fb_putchar(void *cookie, int row, int col, u_int c, long attr) 769 { 770 struct rasops_info *ri = cookie; 771 struct wsdisplay_font *font = PICK_FONT(ri, c); 772 struct vcons_screen *scr = ri->ri_hw; 773 struct r128fb_softc *sc = scr->scr_cookie; 774 775 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 776 void *data; 777 uint32_t fg, bg; 778 int uc, i; 779 int x, y, wi, he, offset; 780 781 wi = font->fontwidth; 782 he = font->fontheight; 783 784 if (!CHAR_IN_FONT(c, font)) 785 return; 786 bg = ri->ri_devcmap[(attr >> 16) & 0xf]; 787 fg = ri->ri_devcmap[(attr >> 24) & 0xf]; 788 x = ri->ri_xorigin + col * wi; 789 y = ri->ri_yorigin + row * he; 790 if (c == 0x20) { 791 r128fb_rectfill(sc, x, y, wi, he, bg); 792 } else { 793 uc = c - font->firstchar; 794 data = (uint8_t *)font->data + uc * ri->ri_fontscale; 795 796 r128fb_wait(sc, 8); 797 798 bus_space_write_4(sc->sc_memt, sc->sc_regh, 799 R128_DP_GUI_MASTER_CNTL, 800 R128_GMC_BRUSH_SOLID_COLOR | 801 R128_GMC_SRC_DATATYPE_MONO_FG_BG | 802 R128_ROP3_S | 803 R128_DP_SRC_SOURCE_HOST_DATA | 804 R128_GMC_DST_CLIPPING | 805 sc->sc_master_cntl); 806 807 bus_space_write_4(sc->sc_memt, sc->sc_regh, 808 R128_DP_CNTL, 809 R128_DST_Y_TOP_TO_BOTTOM | 810 R128_DST_X_LEFT_TO_RIGHT); 811 812 bus_space_write_4(sc->sc_memt, sc->sc_regh, 813 R128_DP_SRC_FRGD_CLR, fg); 814 bus_space_write_4(sc->sc_memt, sc->sc_regh, 815 R128_DP_SRC_BKGD_CLR, bg); 816 817 /* 818 * The Rage 128 doesn't have anything to skip pixels 819 * when colour expanding but all coordinates 820 * are signed so we just clip the leading bytes and 821 * trailing bits away 822 */ 823 bus_space_write_4(sc->sc_memt, sc->sc_regh, 824 R128_SC_RIGHT, x + wi - 1); 825 bus_space_write_4(sc->sc_memt, sc->sc_regh, 826 R128_SC_LEFT, x); 827 828 /* needed? */ 829 bus_space_write_4(sc->sc_memt, sc->sc_regh, 830 R128_SRC_X_Y, 0); 831 832 offset = 32 - (ri->ri_font->stride << 3); 833 bus_space_write_4(sc->sc_memt, sc->sc_regh, 834 R128_DST_X_Y, ((x - offset) << 16) | y); 835 bus_space_write_4(sc->sc_memt, sc->sc_regh, 836 R128_DST_WIDTH_HEIGHT, (32 << 16) | he); 837 838 r128fb_wait(sc, he); 839 switch (ri->ri_font->stride) { 840 case 1: { 841 uint8_t *data8 = data; 842 uint32_t reg; 843 for (i = 0; i < he; i++) { 844 reg = *data8; 845 bus_space_write_stream_4(sc->sc_memt, 846 sc->sc_regh, 847 R128_HOST_DATA0, reg); 848 data8++; 849 } 850 break; 851 } 852 case 2: { 853 uint16_t *data16 = data; 854 uint32_t reg; 855 for (i = 0; i < he; i++) { 856 reg = *data16; 857 bus_space_write_stream_4(sc->sc_memt, 858 sc->sc_regh, 859 R128_HOST_DATA0, reg); 860 data16++; 861 } 862 break; 863 } 864 } 865 } 866 } 867 } 868 869 static void 870 r128fb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 871 { 872 struct rasops_info *ri = cookie; 873 struct vcons_screen *scr = ri->ri_hw; 874 struct r128fb_softc *sc = scr->scr_cookie; 875 int32_t xs, xd, y, width, height; 876 877 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 878 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 879 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 880 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 881 width = ri->ri_font->fontwidth * ncols; 882 height = ri->ri_font->fontheight; 883 r128fb_bitblt(sc, xs, y, xd, y, width, height, R128_ROP3_S); 884 } 885 } 886 887 static void 888 r128fb_erasecols(void *cookie, int row, int startcol, int ncols, long fillattr) 889 { 890 struct rasops_info *ri = cookie; 891 struct vcons_screen *scr = ri->ri_hw; 892 struct r128fb_softc *sc = scr->scr_cookie; 893 int32_t x, y, width, height, fg, bg, ul; 894 895 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 896 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 897 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 898 width = ri->ri_font->fontwidth * ncols; 899 height = ri->ri_font->fontheight; 900 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 901 902 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 903 } 904 } 905 906 static void 907 r128fb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 908 { 909 struct rasops_info *ri = cookie; 910 struct vcons_screen *scr = ri->ri_hw; 911 struct r128fb_softc *sc = scr->scr_cookie; 912 int32_t x, ys, yd, width, height; 913 914 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 915 x = ri->ri_xorigin; 916 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 917 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 918 width = ri->ri_emuwidth; 919 height = ri->ri_font->fontheight * nrows; 920 r128fb_bitblt(sc, x, ys, x, yd, width, height, R128_ROP3_S); 921 } 922 } 923 924 static void 925 r128fb_eraserows(void *cookie, int row, int nrows, long fillattr) 926 { 927 struct rasops_info *ri = cookie; 928 struct vcons_screen *scr = ri->ri_hw; 929 struct r128fb_softc *sc = scr->scr_cookie; 930 int32_t x, y, width, height, fg, bg, ul; 931 932 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 933 x = ri->ri_xorigin; 934 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 935 width = ri->ri_emuwidth; 936 height = ri->ri_font->fontheight * nrows; 937 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 938 939 r128fb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 940 } 941 } 942 943 static void 944 r128fb_set_backlight(struct r128fb_softc *sc, int level) 945 { 946 uint32_t reg; 947 948 /* 949 * should we do nothing when backlight is off, should we just store the 950 * level and use it when turning back on or should we just flip sc_bl_on 951 * and turn the backlight on? 952 * For now turn it on so a crashed screensaver can't get the user stuck 953 * with a dark screen as long as hotkeys work 954 */ 955 if (level > 255) level = 255; 956 if (level < 0) level = 0; 957 if (level == sc->sc_bl_level) 958 return; 959 sc->sc_bl_level = level; 960 if (sc->sc_bl_on == 0) 961 sc->sc_bl_on = 1; 962 level = 255 - level; 963 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 964 reg &= ~R128_LEVEL_MASK; 965 reg |= (level << R128_LEVEL_SHIFT); 966 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 967 DPRINTF("backlight level: %d reg %08x\n", level, reg); 968 } 969 970 static void 971 r128fb_switch_backlight(struct r128fb_softc *sc, int on) 972 { 973 uint32_t reg; 974 int level; 975 976 if (on == sc->sc_bl_on) 977 return; 978 sc->sc_bl_on = on; 979 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL); 980 reg &= ~R128_LEVEL_MASK; 981 level = on ? 255 - sc->sc_bl_level : 255; 982 reg |= level << R128_LEVEL_SHIFT; 983 bus_space_write_4(sc->sc_memt, sc->sc_regh, R128_LVDS_GEN_CNTL, reg); 984 DPRINTF("backlight state: %d reg %08x\n", on, reg); 985 } 986 987 988 static void 989 r128fb_brightness_up(device_t dev) 990 { 991 struct r128fb_softc *sc = device_private(dev); 992 993 r128fb_set_backlight(sc, sc->sc_bl_level + 8); 994 } 995 996 static void 997 r128fb_brightness_down(device_t dev) 998 { 999 struct r128fb_softc *sc = device_private(dev); 1000 1001 r128fb_set_backlight(sc, sc->sc_bl_level - 8); 1002 } 1003
Indexes created Mon Sep 29 21:09:56 GMT 2025