voyagerfb.c revision 1.5
1 /* $NetBSD: voyagerfb.c,v 1.5 2011/09/22 06:16:13 macallan Exp $ */ 2 3 /* 4 * Copyright (c) 2009 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 Silicon Motion SM502 / Voyager GX graphics controllers 30 * tested on GDIUM only so far 31 */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: voyagerfb.c,v 1.5 2011/09/22 06:16:13 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/ic/sm502reg.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 #include <dev/pci/voyagervar.h> 61 62 /* there are probably gdium-specific */ 63 #define GPIO_BACKLIGHT 0x20000000 64 65 struct voyagerfb_softc { 66 device_t sc_dev; 67 68 pci_chipset_tag_t sc_pc; 69 pcitag_t sc_pcitag; 70 bus_space_tag_t sc_memt; 71 72 bus_space_handle_t sc_fbh; 73 bus_space_handle_t sc_regh; 74 bus_addr_t sc_fb, sc_reg; 75 bus_size_t sc_fbsize, sc_regsize; 76 77 int sc_width, sc_height, sc_depth, sc_stride; 78 int sc_locked; 79 void *sc_fbaddr; 80 struct vcons_screen sc_console_screen; 81 struct wsscreen_descr sc_defaultscreen_descr; 82 const struct wsscreen_descr *sc_screens[1]; 83 struct wsscreen_list sc_screenlist; 84 struct vcons_data vd; 85 uint8_t *sc_dataport; 86 int sc_mode; 87 int sc_bl_on, sc_bl_level; 88 void *sc_gpio_cookie; 89 u_char sc_cmap_red[256]; 90 u_char sc_cmap_green[256]; 91 u_char sc_cmap_blue[256]; 92 }; 93 94 static int voyagerfb_match(device_t, cfdata_t, void *); 95 static void voyagerfb_attach(device_t, device_t, void *); 96 97 CFATTACH_DECL_NEW(voyagerfb, sizeof(struct voyagerfb_softc), 98 voyagerfb_match, voyagerfb_attach, NULL, NULL); 99 100 extern const u_char rasops_cmap[768]; 101 102 static int voyagerfb_ioctl(void *, void *, u_long, void *, int, 103 struct lwp *); 104 static paddr_t voyagerfb_mmap(void *, void *, off_t, int); 105 static void voyagerfb_init_screen(void *, struct vcons_screen *, int, 106 long *); 107 108 static int voyagerfb_putcmap(struct voyagerfb_softc *, 109 struct wsdisplay_cmap *); 110 static int voyagerfb_getcmap(struct voyagerfb_softc *, 111 struct wsdisplay_cmap *); 112 static void voyagerfb_restore_palette(struct voyagerfb_softc *); 113 static int voyagerfb_putpalreg(struct voyagerfb_softc *, int, uint8_t, 114 uint8_t, uint8_t); 115 116 static void voyagerfb_init(struct voyagerfb_softc *); 117 118 static void voyagerfb_rectfill(struct voyagerfb_softc *, int, int, int, int, 119 uint32_t); 120 static void voyagerfb_bitblt(struct voyagerfb_softc *, int, int, int, int, 121 int, int, int); 122 123 static void voyagerfb_cursor(void *, int, int, int); 124 static void voyagerfb_putchar(void *, int, int, u_int, long); 125 static void voyagerfb_copycols(void *, int, int, int, int); 126 static void voyagerfb_erasecols(void *, int, int, int, long); 127 static void voyagerfb_copyrows(void *, int, int, int); 128 static void voyagerfb_eraserows(void *, int, int, long); 129 130 struct wsdisplay_accessops voyagerfb_accessops = { 131 voyagerfb_ioctl, 132 voyagerfb_mmap, 133 NULL, /* alloc_screen */ 134 NULL, /* free_screen */ 135 NULL, /* show_screen */ 136 NULL, /* load_font */ 137 NULL, /* pollc */ 138 NULL /* scroll */ 139 }; 140 141 static void voyagerfb_brightness_up(device_t); 142 static void voyagerfb_brightness_down(device_t); 143 /* set backlight level */ 144 static void voyagerfb_set_backlight(struct voyagerfb_softc *, int); 145 /* turn backlight on and off without messing with the level */ 146 static void voyagerfb_switch_backlight(struct voyagerfb_softc *, int); 147 148 /* wait for FIFO empty so we can feed it another command */ 149 static inline void 150 voyagerfb_ready(struct voyagerfb_softc *sc) 151 { 152 do {} while ((bus_space_read_4(sc->sc_memt, sc->sc_regh, 153 SM502_SYSTEM_CTRL) & SM502_SYSCTL_FIFO_EMPTY) == 0); 154 } 155 156 /* wait for the drawing engine to be idle */ 157 static inline void 158 voyagerfb_wait(struct voyagerfb_softc *sc) 159 { 160 do {} while ((bus_space_read_4(sc->sc_memt, sc->sc_regh, 161 SM502_SYSTEM_CTRL) & SM502_SYSCTL_ENGINE_BUSY) != 0); 162 } 163 164 static int 165 voyagerfb_match(device_t parent, cfdata_t match, void *aux) 166 { 167 struct voyager_attach_args *vaa = (struct voyager_attach_args *)aux; 168 169 if (strcmp(vaa->vaa_name, "voyagerfb") == 0) return 100; 170 return 0; 171 } 172 173 static void 174 voyagerfb_attach(device_t parent, device_t self, void *aux) 175 { 176 struct voyagerfb_softc *sc = device_private(self); 177 struct voyager_attach_args *vaa = aux; 178 struct rasops_info *ri; 179 struct wsemuldisplaydev_attach_args aa; 180 prop_dictionary_t dict; 181 unsigned long defattr; 182 uint32_t reg; 183 bool is_console; 184 int i, j; 185 186 sc->sc_pc = vaa->vaa_pc; 187 sc->sc_pcitag = vaa->vaa_pcitag; 188 sc->sc_memt = vaa->vaa_tag; 189 sc->sc_dev = self; 190 191 aprint_normal("\n"); 192 193 dict = device_properties(self); 194 prop_dictionary_get_bool(dict, "is_console", &is_console); 195 196 sc->sc_fb = vaa->vaa_mem_pa; 197 sc->sc_fbh = vaa->vaa_memh; 198 sc->sc_fbsize = 16 * 1024 * 1024; 199 sc->sc_fbaddr = bus_space_vaddr(sc->sc_memt, sc->sc_fbh); 200 201 sc->sc_reg = vaa->vaa_reg_pa; 202 sc->sc_regh = vaa->vaa_regh; 203 sc->sc_regsize = 2 * 1024 * 1024; 204 sc->sc_dataport = bus_space_vaddr(sc->sc_memt, sc->sc_regh); 205 sc->sc_dataport += SM502_DATAPORT; 206 207 reg = bus_space_read_4(sc->sc_memt, sc->sc_regh, SM502_PANEL_DISP_CRTL); 208 switch (reg & SM502_PDC_DEPTH_MASK) { 209 case SM502_PDC_8BIT: 210 sc->sc_depth = 8; 211 break; 212 case SM502_PDC_16BIT: 213 sc->sc_depth = 16; 214 break; 215 case SM502_PDC_32BIT: 216 sc->sc_depth = 24; 217 break; 218 default: 219 panic("%s: unsupported depth", device_xname(self)); 220 } 221 sc->sc_stride = (bus_space_read_4(sc->sc_memt, sc->sc_regh, 222 SM502_PANEL_FB_OFFSET) & SM502_FBA_WIN_STRIDE_MASK) >> 16; 223 sc->sc_width = (bus_space_read_4(sc->sc_memt, sc->sc_regh, 224 SM502_PANEL_FB_WIDTH) & SM502_FBW_WIN_WIDTH_MASK) >> 16; 225 sc->sc_height = (bus_space_read_4(sc->sc_memt, sc->sc_regh, 226 SM502_PANEL_FB_HEIGHT) & SM502_FBH_WIN_HEIGHT_MASK) >> 16; 227 228 printf("%s: %d x %d, %d bit, stride %d\n", device_xname(self), 229 sc->sc_width, sc->sc_height, sc->sc_depth, sc->sc_stride); 230 /* 231 * XXX yeah, casting the fb address to uint32_t is formally wrong 232 * but as far as I know there are no SM502 with 64bit BARs 233 */ 234 aprint_normal("%s: %d MB aperture at 0x%08x\n", device_xname(self), 235 (int)(sc->sc_fbsize >> 20), (uint32_t)sc->sc_fb); 236 237 sc->sc_defaultscreen_descr = (struct wsscreen_descr){ 238 "default", 239 0, 0, 240 NULL, 241 8, 16, 242 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 243 NULL 244 }; 245 sc->sc_screens[0] = &sc->sc_defaultscreen_descr; 246 sc->sc_screenlist = (struct wsscreen_list){1, sc->sc_screens}; 247 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 248 sc->sc_locked = 0; 249 250 vcons_init(&sc->vd, sc, &sc->sc_defaultscreen_descr, 251 &voyagerfb_accessops); 252 sc->vd.init_screen = voyagerfb_init_screen; 253 254 /* backlight control */ 255 sc->sc_gpio_cookie = device_private(parent); 256 voyager_write_gpio(sc->sc_gpio_cookie, 0xffffffff, GPIO_BACKLIGHT); 257 sc->sc_bl_on = 1; 258 sc->sc_bl_level = 255; 259 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_UP, 260 voyagerfb_brightness_up, TRUE); 261 pmf_event_register(sc->sc_dev, PMFE_DISPLAY_BRIGHTNESS_DOWN, 262 voyagerfb_brightness_down, TRUE); 263 264 /* init engine here */ 265 voyagerfb_init(sc); 266 267 ri = &sc->sc_console_screen.scr_ri; 268 269 if (is_console) { 270 vcons_init_screen(&sc->vd, &sc->sc_console_screen, 1, 271 &defattr); 272 sc->sc_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 273 274 sc->sc_defaultscreen_descr.textops = &ri->ri_ops; 275 sc->sc_defaultscreen_descr.capabilities = ri->ri_caps; 276 sc->sc_defaultscreen_descr.nrows = ri->ri_rows; 277 sc->sc_defaultscreen_descr.ncols = ri->ri_cols; 278 wsdisplay_cnattach(&sc->sc_defaultscreen_descr, ri, 0, 0, 279 defattr); 280 } else { 281 /* 282 * since we're not the console we can postpone the rest 283 * until someone actually allocates a screen for us 284 */ 285 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 286 } 287 288 j = 0; 289 if (sc->sc_depth <= 8) { 290 for (i = 0; i < (1 << sc->sc_depth); i++) { 291 292 sc->sc_cmap_red[i] = rasops_cmap[j]; 293 sc->sc_cmap_green[i] = rasops_cmap[j + 1]; 294 sc->sc_cmap_blue[i] = rasops_cmap[j + 2]; 295 voyagerfb_putpalreg(sc, i, rasops_cmap[j], 296 rasops_cmap[j + 1], rasops_cmap[j + 2]); 297 j += 3; 298 } 299 } 300 301 voyagerfb_rectfill(sc, 0, 0, sc->sc_width, sc->sc_height, 302 ri->ri_devcmap[(defattr >> 16) & 0xff]); 303 304 if (is_console) 305 vcons_replay_msgbuf(&sc->sc_console_screen); 306 307 aa.console = is_console; 308 aa.scrdata = &sc->sc_screenlist; 309 aa.accessops = &voyagerfb_accessops; 310 aa.accesscookie = &sc->vd; 311 312 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 313 } 314 315 static int 316 voyagerfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 317 struct lwp *l) 318 { 319 struct vcons_data *vd = v; 320 struct voyagerfb_softc *sc = vd->cookie; 321 struct wsdisplay_fbinfo *wdf; 322 struct vcons_screen *ms = vd->active; 323 struct wsdisplay_param *param; 324 325 switch (cmd) { 326 case WSDISPLAYIO_GTYPE: 327 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 328 return 0; 329 330 /* PCI config read/write passthrough. */ 331 case PCI_IOC_CFGREAD: 332 case PCI_IOC_CFGWRITE: 333 return pci_devioctl(sc->sc_pc, sc->sc_pcitag, 334 cmd, data, flag, l); 335 336 case WSDISPLAYIO_GET_BUSID: 337 return wsdisplayio_busid_pci(device_parent(sc->sc_dev), 338 sc->sc_pc, sc->sc_pcitag, data); 339 340 case WSDISPLAYIO_GINFO: 341 if (ms == NULL) 342 return ENODEV; 343 wdf = (void *)data; 344 wdf->height = ms->scr_ri.ri_height; 345 wdf->width = ms->scr_ri.ri_width; 346 wdf->depth = ms->scr_ri.ri_depth; 347 wdf->cmsize = 256; 348 return 0; 349 350 case WSDISPLAYIO_GETCMAP: 351 return voyagerfb_getcmap(sc, 352 (struct wsdisplay_cmap *)data); 353 354 case WSDISPLAYIO_PUTCMAP: 355 return voyagerfb_putcmap(sc, 356 (struct wsdisplay_cmap *)data); 357 358 case WSDISPLAYIO_LINEBYTES: 359 *(u_int *)data = sc->sc_stride; 360 return 0; 361 362 case WSDISPLAYIO_SMODE: { 363 int new_mode = *(int*)data; 364 if (new_mode != sc->sc_mode) { 365 sc->sc_mode = new_mode; 366 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 367 voyagerfb_restore_palette(sc); 368 vcons_redraw_screen(ms); 369 } 370 } 371 } 372 return 0; 373 374 case WSDISPLAYIO_GVIDEO: 375 *(int *)data = sc->sc_bl_on ? WSDISPLAYIO_VIDEO_ON : 376 WSDISPLAYIO_VIDEO_OFF; 377 return 0; 378 379 case WSDISPLAYIO_SVIDEO: { 380 int new_bl = *(int *)data; 381 382 voyagerfb_switch_backlight(sc, new_bl); 383 } 384 return 0; 385 386 case WSDISPLAYIO_GETPARAM: 387 param = (struct wsdisplay_param *)data; 388 switch (param->param) { 389 case WSDISPLAYIO_PARAM_BRIGHTNESS: 390 param->min = 0; 391 param->max = 255; 392 param->curval = sc->sc_bl_level; 393 return 0; 394 case WSDISPLAYIO_PARAM_BACKLIGHT: 395 param->min = 0; 396 param->max = 1; 397 param->curval = sc->sc_bl_on; 398 return 0; 399 } 400 return EPASSTHROUGH; 401 402 case WSDISPLAYIO_SETPARAM: 403 param = (struct wsdisplay_param *)data; 404 switch (param->param) { 405 case WSDISPLAYIO_PARAM_BRIGHTNESS: 406 voyagerfb_set_backlight(sc, param->curval); 407 return 0; 408 case WSDISPLAYIO_PARAM_BACKLIGHT: 409 voyagerfb_switch_backlight(sc, param->curval); 410 return 0; 411 } 412 return EPASSTHROUGH; 413 } 414 return EPASSTHROUGH; 415 } 416 417 static paddr_t 418 voyagerfb_mmap(void *v, void *vs, off_t offset, int prot) 419 { 420 struct vcons_data *vd = v; 421 struct voyagerfb_softc *sc = vd->cookie; 422 paddr_t pa; 423 424 /* 'regular' framebuffer mmap()ing */ 425 if (offset < sc->sc_fbsize) { 426 pa = bus_space_mmap(sc->sc_memt, sc->sc_fb + offset, 0, prot, 427 BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE); 428 return pa; 429 } 430 431 /* 432 * restrict all other mappings to processes with superuser privileges 433 * or the kernel itself 434 */ 435 if (kauth_authorize_generic(kauth_cred_get(), KAUTH_GENERIC_ISSUSER, 436 NULL) != 0) { 437 aprint_normal("%s: mmap() rejected.\n", 438 device_xname(sc->sc_dev)); 439 return -1; 440 } 441 442 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 443 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 444 BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE); 445 return pa; 446 } 447 448 if ((offset >= sc->sc_reg) && 449 (offset < (sc->sc_reg + sc->sc_regsize))) { 450 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 0); 451 return pa; 452 } 453 454 return -1; 455 } 456 457 static void 458 voyagerfb_init_screen(void *cookie, struct vcons_screen *scr, 459 int existing, long *defattr) 460 { 461 struct voyagerfb_softc *sc = cookie; 462 struct rasops_info *ri = &scr->scr_ri; 463 464 ri->ri_depth = sc->sc_depth; 465 ri->ri_width = sc->sc_width; 466 ri->ri_height = sc->sc_height; 467 ri->ri_stride = sc->sc_stride; 468 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 469 470 ri->ri_bits = (char *)sc->sc_fbaddr; 471 472 if (existing) { 473 ri->ri_flg |= RI_CLEAR; 474 } 475 476 rasops_init(ri, sc->sc_height / 8, sc->sc_width / 8); 477 ri->ri_caps = WSSCREEN_WSCOLORS; 478 479 rasops_reconfig(ri, sc->sc_height / ri->ri_font->fontheight, 480 sc->sc_width / ri->ri_font->fontwidth); 481 482 ri->ri_hw = scr; 483 ri->ri_ops.copyrows = voyagerfb_copyrows; 484 ri->ri_ops.copycols = voyagerfb_copycols; 485 ri->ri_ops.eraserows = voyagerfb_eraserows; 486 ri->ri_ops.erasecols = voyagerfb_erasecols; 487 ri->ri_ops.cursor = voyagerfb_cursor; 488 ri->ri_ops.putchar = voyagerfb_putchar; 489 } 490 491 static int 492 voyagerfb_putcmap(struct voyagerfb_softc *sc, struct wsdisplay_cmap *cm) 493 { 494 u_char *r, *g, *b; 495 u_int index = cm->index; 496 u_int count = cm->count; 497 int i, error; 498 u_char rbuf[256], gbuf[256], bbuf[256]; 499 500 #ifdef VOYAGERFB_DEBUG 501 aprint_debug("putcmap: %d %d\n",index, count); 502 #endif 503 if (cm->index >= 256 || cm->count > 256 || 504 (cm->index + cm->count) > 256) 505 return EINVAL; 506 error = copyin(cm->red, &rbuf[index], count); 507 if (error) 508 return error; 509 error = copyin(cm->green, &gbuf[index], count); 510 if (error) 511 return error; 512 error = copyin(cm->blue, &bbuf[index], count); 513 if (error) 514 return error; 515 516 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 517 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 518 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 519 520 r = &sc->sc_cmap_red[index]; 521 g = &sc->sc_cmap_green[index]; 522 b = &sc->sc_cmap_blue[index]; 523 524 for (i = 0; i < count; i++) { 525 voyagerfb_putpalreg(sc, index, *r, *g, *b); 526 index++; 527 r++, g++, b++; 528 } 529 return 0; 530 } 531 532 static int 533 voyagerfb_getcmap(struct voyagerfb_softc *sc, struct wsdisplay_cmap *cm) 534 { 535 u_int index = cm->index; 536 u_int count = cm->count; 537 int error; 538 539 if (index >= 255 || count > 256 || index + count > 256) 540 return EINVAL; 541 542 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 543 if (error) 544 return error; 545 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 546 if (error) 547 return error; 548 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 549 if (error) 550 return error; 551 552 return 0; 553 } 554 555 static void 556 voyagerfb_restore_palette(struct voyagerfb_softc *sc) 557 { 558 int i; 559 560 for (i = 0; i < (1 << sc->sc_depth); i++) { 561 voyagerfb_putpalreg(sc, i, sc->sc_cmap_red[i], 562 sc->sc_cmap_green[i], sc->sc_cmap_blue[i]); 563 } 564 } 565 566 static int 567 voyagerfb_putpalreg(struct voyagerfb_softc *sc, int idx, uint8_t r, 568 uint8_t g, uint8_t b) 569 { 570 uint32_t reg; 571 572 reg = (r << 16) | (g << 8) | b; 573 /* XXX we should probably write the CRT palette too */ 574 bus_space_write_4(sc->sc_memt, sc->sc_regh, 575 SM502_PALETTE_PANEL + (idx << 2), reg); 576 return 0; 577 } 578 579 static void 580 voyagerfb_init(struct voyagerfb_softc *sc) 581 { 582 583 voyagerfb_wait(sc); 584 /* disable colour compare */ 585 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_COLOR_COMP_MASK, 0); 586 /* allow writes to all planes */ 587 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_PLANEMASK, 588 0xffffffff); 589 /* disable clipping */ 590 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_CLIP_TOP_LEFT, 0); 591 /* source and destination in local memory, no offset */ 592 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_SRC_BASE, 0); 593 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_DST_BASE, 0); 594 /* pitch is screen stride */ 595 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_PITCH, 596 sc->sc_width | (sc->sc_width << 16)); 597 /* window is screen width */ 598 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_WINDOW_WIDTH, 599 sc->sc_width | (sc->sc_width << 16)); 600 switch (sc->sc_depth) { 601 case 8: 602 bus_space_write_4(sc->sc_memt, sc->sc_regh, 603 SM502_STRETCH, SM502_STRETCH_8BIT); 604 break; 605 case 16: 606 bus_space_write_4(sc->sc_memt, sc->sc_regh, 607 SM502_STRETCH, SM502_STRETCH_16BIT); 608 break; 609 case 24: 610 case 32: 611 bus_space_write_4(sc->sc_memt, sc->sc_regh, 612 SM502_STRETCH, SM502_STRETCH_32BIT); 613 break; 614 } 615 } 616 617 static void 618 voyagerfb_rectfill(struct voyagerfb_softc *sc, int x, int y, int wi, int he, 619 uint32_t colour) 620 { 621 622 voyagerfb_ready(sc); 623 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_CONTROL, 624 ROP_COPY | 625 SM502_CTRL_USE_ROP2 | 626 SM502_CTRL_CMD_RECTFILL | 627 SM502_CTRL_QUICKSTART_E); 628 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_FOREGROUND, 629 colour); 630 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_DST, 631 (x << 16) | y); 632 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_DIMENSION, 633 (wi << 16) | he); 634 } 635 636 static void 637 voyagerfb_bitblt(struct voyagerfb_softc *sc, int xs, int ys, int xd, int yd, 638 int wi, int he, int rop) 639 { 640 uint32_t cmd; 641 642 cmd = (rop & 0xf) | SM502_CTRL_USE_ROP2 | SM502_CTRL_CMD_BITBLT | 643 SM502_CTRL_QUICKSTART_E; 644 645 voyagerfb_ready(sc); 646 647 if (xd <= xs) { 648 /* left to right */ 649 } else { 650 /* 651 * According to the manual this flag reverses only the blitter's 652 * X direction. At least on my Gdium it also reverses the Y 653 * direction 654 */ 655 cmd |= SM502_CTRL_R_TO_L; 656 xs += wi - 1; 657 xd += wi - 1; 658 ys += he - 1; 659 yd += he - 1; 660 } 661 662 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_CONTROL, cmd); 663 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_SRC, 664 (xs << 16) | ys); 665 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_DST, 666 (xd << 16) | yd); 667 bus_space_write_4(sc->sc_memt, sc->sc_regh, SM502_DIMENSION, 668 (wi << 16) | he); 669 } 670 671 static void 672 voyagerfb_cursor(void *cookie, int on, int row, int col) 673 { 674 struct rasops_info *ri = cookie; 675 struct vcons_screen *scr = ri->ri_hw; 676 struct voyagerfb_softc *sc = scr->scr_cookie; 677 int x, y, wi, he; 678 679 wi = ri->ri_font->fontwidth; 680 he = ri->ri_font->fontheight; 681 682 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 683 x = ri->ri_ccol * wi + ri->ri_xorigin; 684 y = ri->ri_crow * he + ri->ri_yorigin; 685 if (ri->ri_flg & RI_CURSOR) { 686 voyagerfb_bitblt(sc, x, y, x, y, wi, he, ROP_INVERT); 687 ri->ri_flg &= ~RI_CURSOR; 688 } 689 ri->ri_crow = row; 690 ri->ri_ccol = col; 691 if (on) { 692 x = ri->ri_ccol * wi + ri->ri_xorigin; 693 y = ri->ri_crow * he + ri->ri_yorigin; 694 voyagerfb_bitblt(sc, x, y, x, y, wi, he, ROP_INVERT); 695 ri->ri_flg |= RI_CURSOR; 696 } 697 } else { 698 scr->scr_ri.ri_crow = row; 699 scr->scr_ri.ri_ccol = col; 700 scr->scr_ri.ri_flg &= ~RI_CURSOR; 701 } 702 703 } 704 705 static inline void 706 voyagerfb_feed8(struct voyagerfb_softc *sc, uint8_t *data, int len) 707 { 708 uint32_t *port = (uint32_t *)sc->sc_dataport; 709 int i; 710 711 for (i = 0; i < ((len + 3) & 0xfffc); i++) { 712 *port = *data; 713 data++; 714 } 715 } 716 717 static inline void 718 voyagerfb_feed16(struct voyagerfb_softc *sc, uint16_t *data, int len) 719 { 720 uint32_t *port = (uint32_t *)sc->sc_dataport; 721 int i; 722 723 len = len << 1; 724 for (i = 0; i < ((len + 1) & 0xfffe); i++) { 725 *port = *data; 726 data++; 727 } 728 } 729 730 731 static void 732 voyagerfb_putchar(void *cookie, int row, int col, u_int c, long attr) 733 { 734 struct rasops_info *ri = cookie; 735 struct wsdisplay_font *font = PICK_FONT(ri, c); 736 struct vcons_screen *scr = ri->ri_hw; 737 struct voyagerfb_softc *sc = scr->scr_cookie; 738 uint32_t cmd; 739 740 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 741 int fg, bg, uc; 742 uint8_t *data; 743 int x, y, wi, he; 744 wi = font->fontwidth; 745 he = font->fontheight; 746 747 if (!CHAR_IN_FONT(c, font)) 748 return; 749 bg = ri->ri_devcmap[(attr >> 16) & 0x0f]; 750 fg = ri->ri_devcmap[(attr >> 24) & 0x0f]; 751 x = ri->ri_xorigin + col * wi; 752 y = ri->ri_yorigin + row * he; 753 if (c == 0x20) { 754 voyagerfb_rectfill(sc, x, y, wi, he, bg); 755 } else { 756 uc = c - font->firstchar; 757 data = (uint8_t *)font->data + uc * ri->ri_fontscale; 758 cmd = ROP_COPY | 759 SM502_CTRL_USE_ROP2 | 760 SM502_CTRL_CMD_HOSTWRT | 761 SM502_CTRL_HOSTBLT_MONO | 762 SM502_CTRL_QUICKSTART_E | 763 SM502_CTRL_MONO_PACK_32BIT; 764 voyagerfb_ready(sc); 765 bus_space_write_4(sc->sc_memt, sc->sc_regh, 766 SM502_CONTROL, cmd); 767 bus_space_write_4(sc->sc_memt, sc->sc_regh, 768 SM502_FOREGROUND, fg); 769 bus_space_write_4(sc->sc_memt, sc->sc_regh, 770 SM502_BACKGROUND, bg); 771 bus_space_write_4(sc->sc_memt, sc->sc_regh, 772 SM502_SRC, 0); 773 bus_space_write_4(sc->sc_memt, sc->sc_regh, 774 SM502_DST, (x << 16) | y); 775 bus_space_write_4(sc->sc_memt, sc->sc_regh, 776 SM502_DIMENSION, (wi << 16) | he); 777 /* now feed the data, padded to 32bit */ 778 switch (ri->ri_font->stride) { 779 case 1: 780 voyagerfb_feed8(sc, data, ri->ri_fontscale); 781 break; 782 case 2: 783 voyagerfb_feed16(sc, (uint16_t *)data, 784 ri->ri_fontscale); 785 break; 786 787 } 788 } 789 } 790 } 791 792 static void 793 voyagerfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 794 { 795 struct rasops_info *ri = cookie; 796 struct vcons_screen *scr = ri->ri_hw; 797 struct voyagerfb_softc *sc = scr->scr_cookie; 798 int32_t xs, xd, y, width, height; 799 800 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 801 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 802 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 803 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 804 width = ri->ri_font->fontwidth * ncols; 805 height = ri->ri_font->fontheight; 806 voyagerfb_bitblt(sc, xs, y, xd, y, width, height, ROP_COPY); 807 } 808 } 809 810 static void 811 voyagerfb_erasecols(void *cookie, int row, int startcol, int ncols, 812 long fillattr) 813 { 814 struct rasops_info *ri = cookie; 815 struct vcons_screen *scr = ri->ri_hw; 816 struct voyagerfb_softc *sc = scr->scr_cookie; 817 int32_t x, y, width, height, fg, bg, ul; 818 819 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 820 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 821 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 822 width = ri->ri_font->fontwidth * ncols; 823 height = ri->ri_font->fontheight; 824 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 825 826 voyagerfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 827 } 828 } 829 830 static void 831 voyagerfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 832 { 833 struct rasops_info *ri = cookie; 834 struct vcons_screen *scr = ri->ri_hw; 835 struct voyagerfb_softc *sc = scr->scr_cookie; 836 int32_t x, ys, yd, width, height; 837 int i; 838 839 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 840 x = ri->ri_xorigin; 841 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 842 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 843 width = ri->ri_emuwidth; 844 height = ri->ri_font->fontheight * nrows; 845 if ((nrows > 1) && (dstrow > srcrow)) { 846 /* 847 * the blitter can't do bottom-up copies so we have 848 * to copy line by line here 849 * should probably use a command sequence 850 */ 851 ys += (height - ri->ri_font->fontheight); 852 yd += (height - ri->ri_font->fontheight); 853 for (i = 0; i < nrows; i++) { 854 voyagerfb_bitblt(sc, x, ys, x, yd, width, 855 ri->ri_font->fontheight, ROP_COPY); 856 ys -= ri->ri_font->fontheight; 857 yd -= ri->ri_font->fontheight; 858 } 859 } else 860 voyagerfb_bitblt(sc, x, ys, x, yd, width, height, 861 ROP_COPY); 862 } 863 } 864 865 static void 866 voyagerfb_eraserows(void *cookie, int row, int nrows, long fillattr) 867 { 868 struct rasops_info *ri = cookie; 869 struct vcons_screen *scr = ri->ri_hw; 870 struct voyagerfb_softc *sc = scr->scr_cookie; 871 int32_t x, y, width, height, fg, bg, ul; 872 873 if ((sc->sc_locked == 0) && (sc->sc_mode == WSDISPLAYIO_MODE_EMUL)) { 874 x = ri->ri_xorigin; 875 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 876 width = ri->ri_emuwidth; 877 height = ri->ri_font->fontheight * nrows; 878 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 879 880 voyagerfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 881 } 882 } 883 884 /* backlight control */ 885 static void 886 voyagerfb_set_backlight(struct voyagerfb_softc *sc, int level) 887 { 888 889 /* 890 * should we do nothing when backlight is off, should we just store the 891 * level and use it when turning back on or should we just flip sc_bl_on 892 * and turn the backlight on? 893 * For now turn it on so a crashed screensaver can't get the user stuck 894 * with a dark screen as long as hotkeys work 895 */ 896 if (level > 255) level = 255; 897 if (level < 0) level = 0; 898 if (level == sc->sc_bl_level) 899 return; 900 sc->sc_bl_level = level; 901 if (sc->sc_bl_on == 0) 902 sc->sc_bl_on = 1; 903 level = 255 - level; 904 /* and here we would actually muck with the hardware */ 905 } 906 907 static void 908 voyagerfb_switch_backlight(struct voyagerfb_softc *sc, int on) 909 { 910 911 if (on == sc->sc_bl_on) 912 return; 913 sc->sc_bl_on = on; 914 voyager_write_gpio(sc->sc_gpio_cookie, ~GPIO_BACKLIGHT, on ? GPIO_BACKLIGHT : 0); 915 } 916 917 918 static void 919 voyagerfb_brightness_up(device_t dev) 920 { 921 struct voyagerfb_softc *sc = device_private(dev); 922 923 voyagerfb_set_backlight(sc, sc->sc_bl_level + 8); 924 } 925 926 static void 927 voyagerfb_brightness_down(device_t dev) 928 { 929 struct voyagerfb_softc *sc = device_private(dev); 930 931 voyagerfb_set_backlight(sc, sc->sc_bl_level - 8); 932 } 933
Indexes created Tue Sep 30 07:10:03 GMT 2025