chipsfb.c revision 1.3
1 /* $NetBSD: chipsfb.c,v 1.3 2006/09/27 06:39:38 macallan Exp $ */ 2 3 /* 4 * Copyright (c) 2006 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 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* 31 * A console driver for Chips & Technologies 65550 graphics controllers 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: chipsfb.c,v 1.3 2006/09/27 06:39:38 macallan Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/kernel.h> 40 #include <sys/device.h> 41 #include <sys/malloc.h> 42 #include <sys/callout.h> 43 #include <sys/lwp.h> 44 #include <sys/kauth.h> 45 46 #include <uvm/uvm_extern.h> 47 48 #if defined(macppc) || defined (sparc64) || defined(ofppc) 49 #define HAVE_OPENFIRMWARE 50 #endif 51 52 #ifdef HAVE_OPENFIRMWARE 53 #include <dev/ofw/openfirm.h> 54 #include <dev/ofw/ofw_pci.h> 55 #endif 56 57 #include <dev/videomode/videomode.h> 58 59 #include <dev/pci/pcivar.h> 60 #include <dev/pci/pcireg.h> 61 #include <dev/pci/pcidevs.h> 62 #include <dev/pci/pciio.h> 63 #include <dev/pci/chipsfbreg.h> 64 65 #include <dev/wscons/wsdisplayvar.h> 66 #include <dev/wscons/wsconsio.h> 67 #include <dev/wsfont/wsfont.h> 68 #include <dev/rasops/rasops.h> 69 #include <dev/wscons/wsdisplay_vconsvar.h> 70 71 #include <dev/i2c/i2cvar.h> 72 #include <dev/i2c/i2c_bitbang.h> 73 #include <dev/i2c/edidvar.h> 74 75 #include "opt_wsemul.h" 76 77 struct chipsfb_softc { 78 struct device sc_dev; 79 pci_chipset_tag_t sc_pc; 80 pcitag_t sc_pcitag; 81 82 bus_space_tag_t sc_memt; 83 bus_space_tag_t sc_iot; 84 bus_space_handle_t sc_memh; 85 86 bus_space_tag_t sc_fbt; 87 bus_space_tag_t sc_ioregt; 88 bus_space_handle_t sc_fbh; 89 bus_space_handle_t sc_ioregh; 90 bus_addr_t sc_fb, sc_ioreg; 91 bus_size_t sc_fbsize, sc_ioregsize; 92 93 void *sc_ih; 94 95 size_t memsize; 96 97 int bits_per_pixel; 98 int width, height, linebytes; 99 100 int sc_mode; 101 uint32_t sc_bg; 102 103 u_char sc_cmap_red[256]; 104 u_char sc_cmap_green[256]; 105 u_char sc_cmap_blue[256]; 106 int sc_dacw; 107 108 /* I2C stuff */ 109 struct i2c_controller sc_i2c; 110 uint8_t sc_edid[1024]; 111 int sc_edidbytes; /* number of bytes read from the monitor */ 112 113 struct vcons_data vd; 114 }; 115 116 static struct vcons_screen chipsfb_console_screen; 117 118 extern const u_char rasops_cmap[768]; 119 120 static int chipsfb_match(struct device *, struct cfdata *, void *); 121 static void chipsfb_attach(struct device *, struct device *, void *); 122 123 CFATTACH_DECL(chipsfb, sizeof(struct chipsfb_softc), chipsfb_match, 124 chipsfb_attach, NULL, NULL); 125 126 static int chipsfb_is_console(struct pci_attach_args *); 127 static void chipsfb_init(struct chipsfb_softc *); 128 129 static void chipsfb_cursor(void *, int, int, int); 130 static void chipsfb_copycols(void *, int, int, int, int); 131 static void chipsfb_erasecols(void *, int, int, int, long); 132 static void chipsfb_copyrows(void *, int, int, int); 133 static void chipsfb_eraserows(void *, int, int, long); 134 135 #if 0 136 static int chipsfb_allocattr(void *, int, int, int, long *); 137 static void chipsfb_scroll(void *, void *, int); 138 static int chipsfb_load_font(void *, void *, struct wsdisplay_font *); 139 #endif 140 141 static int chipsfb_putcmap(struct chipsfb_softc *, 142 struct wsdisplay_cmap *); 143 static int chipsfb_getcmap(struct chipsfb_softc *, 144 struct wsdisplay_cmap *); 145 static int chipsfb_putpalreg(struct chipsfb_softc *, uint8_t, uint8_t, 146 uint8_t, uint8_t); 147 148 static void chipsfb_bitblt(struct chipsfb_softc *, int, int, int, int, 149 int, int, uint8_t); 150 static void chipsfb_rectfill(struct chipsfb_softc *, int, int, int, int, 151 int); 152 static void chipsfb_putchar(void *, int, int, u_int, long); 153 static void chipsfb_setup_mono(struct chipsfb_softc *, int, int, int, 154 int, uint32_t, uint32_t); 155 static void chipsfb_feed(struct chipsfb_softc *, int, uint8_t *); 156 157 #ifdef chipsfb_DEBUG 158 static void chipsfb_showpal(struct chipsfb_softc *); 159 #endif 160 static void chipsfb_restore_palette(struct chipsfb_softc *); 161 162 static void chipsfb_wait_idle(struct chipsfb_softc *); 163 164 struct wsscreen_descr chipsfb_defaultscreen = { 165 "default", 166 0, 0, 167 NULL, 168 8, 16, 169 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 170 }; 171 172 const struct wsscreen_descr *_chipsfb_scrlist[] = { 173 &chipsfb_defaultscreen, 174 /* XXX other formats, graphics screen? */ 175 }; 176 177 struct wsscreen_list chipsfb_screenlist = { 178 sizeof(_chipsfb_scrlist) / sizeof(struct wsscreen_descr *), _chipsfb_scrlist 179 }; 180 181 static int chipsfb_ioctl(void *, void *, u_long, caddr_t, int, 182 struct lwp *); 183 static paddr_t chipsfb_mmap(void *, void *, off_t, int); 184 static void chipsfb_clearscreen(struct chipsfb_softc *); 185 static void chipsfb_init_screen(void *, struct vcons_screen *, int, 186 long *); 187 188 189 struct wsdisplay_accessops chipsfb_accessops = { 190 chipsfb_ioctl, 191 chipsfb_mmap, 192 NULL, /* load_font */ 193 NULL, /* polls */ 194 NULL, /* scroll */ 195 }; 196 197 /* 198 * Inline functions for getting access to register aperture. 199 */ 200 static inline void 201 chipsfb_write32(struct chipsfb_softc *sc, uint32_t reg, uint32_t val) 202 { 203 bus_space_write_4(sc->sc_fbt, sc->sc_fbh, reg, val); 204 } 205 206 static inline uint32_t 207 chipsfb_read32(struct chipsfb_softc *sc, uint32_t reg) 208 { 209 return bus_space_read_4(sc->sc_fbt, sc->sc_fbh, reg); 210 } 211 212 static inline void 213 chipsfb_write_vga(struct chipsfb_softc *sc, uint32_t reg, uint8_t val) 214 { 215 bus_space_write_1(sc->sc_iot, sc->sc_ioregh, reg, val); 216 } 217 218 static inline uint8_t 219 chipsfb_read_vga(struct chipsfb_softc *sc, uint32_t reg) 220 { 221 return bus_space_read_1(sc->sc_iot, sc->sc_ioregh, reg); 222 } 223 224 static inline uint8_t 225 chipsfb_read_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index) 226 { 227 228 chipsfb_write_vga(sc, reg & 0xfffe, index); 229 return chipsfb_read_vga(sc, reg | 0x0001); 230 } 231 232 static inline void 233 chipsfb_write_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index, 234 uint8_t val) 235 { 236 237 chipsfb_write_vga(sc, reg & 0xfffe, index); 238 chipsfb_write_vga(sc, reg | 0x0001, val); 239 } 240 241 static void 242 chipsfb_wait_idle(struct chipsfb_softc *sc) 243 { 244 245 #ifdef CHIPSFB_DEBUG 246 chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0); 247 #endif 248 249 /* spin until the blitter is idle */ 250 while ((chipsfb_read32(sc, CT_BLT_CONTROL) & BLT_IS_BUSY) != 0) { 251 } 252 253 #ifdef CHIPSFB_DEBUG 254 chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0xffffffff); 255 #endif 256 } 257 258 static int 259 chipsfb_match(struct device *parent, struct cfdata *match, void *aux) 260 { 261 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 262 263 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY || 264 PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA) 265 return 0; 266 if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CHIPS) && 267 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CHIPS_65550)) 268 return 100; 269 return 0; 270 } 271 272 static void 273 chipsfb_attach(struct device *parent, struct device *self, void *aux) 274 { 275 struct chipsfb_softc *sc = (void *)self; 276 struct pci_attach_args *pa = aux; 277 char devinfo[256]; 278 struct wsemuldisplaydev_attach_args aa; 279 struct rasops_info *ri; 280 pcireg_t screg; 281 ulong defattr; 282 int console, width, height, node, i, j; 283 #ifdef HAVE_OPENFIRMWARE 284 int linebytes, depth; 285 #endif 286 uint32_t bg, fg, ul; 287 288 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 289 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 290 sc->sc_pc = pa->pa_pc; 291 sc->sc_pcitag = pa->pa_tag; 292 sc->sc_dacw = -1; 293 294 screg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 295 screg |= PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED; 296 pci_conf_write(sc->sc_pc, sc->sc_pcitag,PCI_COMMAND_STATUS_REG,screg); 297 298 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 299 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 300 301 sc->sc_memt = pa->pa_memt; 302 sc->sc_iot = pa->pa_iot; 303 304 /* the framebuffer */ 305 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 306 BUS_SPACE_MAP_LINEAR, 307 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 308 printf("%s: failed to map the frame buffer.\n", 309 sc->sc_dev.dv_xname); 310 } 311 312 /* IO-mapped registers */ 313 if (bus_space_map(sc->sc_iot, 0x0, PAGE_SIZE, 0, &sc->sc_ioregh) != 0) { 314 printf("%s: failed to map IO-mapped registers.\n", 315 sc->sc_dev.dv_xname); 316 } 317 318 chipsfb_init(sc); 319 320 /* we should read these from the chip instead of depending on OF */ 321 width = height = -1; 322 323 /* detect panel size */ 324 width = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HSIZE_LSB); 325 width |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HORZ_OVERFLOW_1) 326 & 0x0f) << 8; 327 width = (width + 1) * 8; 328 height = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VSIZE_LSB); 329 height |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VERT_OVERFLOW_1) 330 & 0x0f) << 8; 331 height++; 332 printf("Panel size: %d x %d\n", width, height); 333 334 #ifdef HAVE_OPENFIRMWARE 335 if (OF_getprop(node, "width", &width, 4) != 4) 336 OF_interpret("screen-width", 1, &width); 337 if (OF_getprop(node, "height", &height, 4) != 4) 338 OF_interpret("screen-height", 1, &height); 339 if (OF_getprop(node, "linebytes", &linebytes, 4) != 4) 340 linebytes = width; /* XXX */ 341 if (OF_getprop(node, "depth", &depth, 4) != 4) 342 depth = 8; /* XXX */ 343 344 if (width == -1 || height == -1) 345 return; 346 347 sc->width = width; 348 sc->height = height; 349 sc->bits_per_pixel = depth; 350 sc->linebytes = linebytes; 351 printf("%s: initial resolution %dx%d, %d bit\n", sc->sc_dev.dv_xname, 352 sc->width, sc->height, sc->bits_per_pixel); 353 #endif 354 355 #ifdef notyet 356 /* XXX this should at least be configurable via kernel config */ 357 chipsfb_set_videomode(sc, &videomode_list[16]); 358 #endif 359 360 vcons_init(&sc->vd, sc, &chipsfb_defaultscreen, &chipsfb_accessops); 361 sc->vd.init_screen = chipsfb_init_screen; 362 363 console = chipsfb_is_console(pa); 364 365 ri = &chipsfb_console_screen.scr_ri; 366 if (console) { 367 vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1, 368 &defattr); 369 chipsfb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 370 371 chipsfb_defaultscreen.textops = &ri->ri_ops; 372 chipsfb_defaultscreen.capabilities = ri->ri_caps; 373 chipsfb_defaultscreen.nrows = ri->ri_rows; 374 chipsfb_defaultscreen.ncols = ri->ri_cols; 375 wsdisplay_cnattach(&chipsfb_defaultscreen, ri, 0, 0, defattr); 376 } else { 377 /* 378 * since we're not the console we can postpone the rest 379 * until someone actually allocates a screen for us 380 */ 381 #ifdef notyet 382 chipsfb_set_videomode(sc, &videomode_list[0]); 383 #endif 384 } 385 386 rasops_unpack_attr(defattr, &fg, &bg, &ul); 387 sc->sc_bg = ri->ri_devcmap[bg]; 388 chipsfb_clearscreen(sc); 389 390 printf("%s: %d MB aperture at 0x%08x\n", 391 sc->sc_dev.dv_xname, (u_int)(sc->sc_fbsize >> 20), 392 (u_int)sc->sc_fb); 393 #ifdef chipsfb_DEBUG 394 printf("fb: %08lx\n", (ulong)ri->ri_bits); 395 #endif 396 397 j = 0; 398 for (i = 0; i < 256; i++) { 399 chipsfb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 400 rasops_cmap[j + 2]); 401 j += 3; 402 } 403 404 aa.console = console; 405 aa.scrdata = &chipsfb_screenlist; 406 aa.accessops = &chipsfb_accessops; 407 aa.accesscookie = &sc->vd; 408 409 config_found(self, &aa, wsemuldisplaydevprint); 410 } 411 412 static int 413 chipsfb_putpalreg(struct chipsfb_softc *sc, uint8_t index, uint8_t r, 414 uint8_t g, uint8_t b) 415 { 416 417 sc->sc_cmap_red[index] = r; 418 sc->sc_cmap_green[index] = g; 419 sc->sc_cmap_blue[index] = b; 420 421 chipsfb_write_vga(sc, CT_DACMASK, 0xff); 422 chipsfb_write_vga(sc, CT_WRITEINDEX, index); 423 chipsfb_write_vga(sc, CT_DACDATA, r); 424 chipsfb_write_vga(sc, CT_DACDATA, g); 425 chipsfb_write_vga(sc, CT_DACDATA, b); 426 427 return 0; 428 } 429 430 static int 431 chipsfb_putcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 432 { 433 u_char *r, *g, *b; 434 u_int index = cm->index; 435 u_int count = cm->count; 436 int i, error; 437 u_char rbuf[256], gbuf[256], bbuf[256]; 438 439 #ifdef chipsfb_DEBUG 440 printf("putcmap: %d %d\n",index, count); 441 #endif 442 if (cm->index >= 256 || cm->count > 256 || 443 (cm->index + cm->count) > 256) 444 return EINVAL; 445 error = copyin(cm->red, &rbuf[index], count); 446 if (error) 447 return error; 448 error = copyin(cm->green, &gbuf[index], count); 449 if (error) 450 return error; 451 error = copyin(cm->blue, &bbuf[index], count); 452 if (error) 453 return error; 454 455 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 456 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 457 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 458 459 r = &sc->sc_cmap_red[index]; 460 g = &sc->sc_cmap_green[index]; 461 b = &sc->sc_cmap_blue[index]; 462 463 for (i = 0; i < count; i++) { 464 chipsfb_putpalreg(sc, index, *r, *g, *b); 465 index++; 466 r++, g++, b++; 467 } 468 return 0; 469 } 470 471 static int 472 chipsfb_getcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 473 { 474 u_int index = cm->index; 475 u_int count = cm->count; 476 int error; 477 478 if (index >= 255 || count > 256 || index + count > 256) 479 return EINVAL; 480 481 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 482 if (error) 483 return error; 484 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 485 if (error) 486 return error; 487 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 488 if (error) 489 return error; 490 491 return 0; 492 } 493 494 static int 495 chipsfb_is_console(struct pci_attach_args *pa) 496 { 497 498 #ifdef HAVE_OPENFIRMWARE 499 /* check if we're the /chosen console device */ 500 int chosen, stdout, node, us; 501 502 us = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 503 chosen = OF_finddevice("/chosen"); 504 OF_getprop(chosen, "stdout", &stdout, 4); 505 node = OF_instance_to_package(stdout); 506 return(us == node); 507 #else 508 /* XXX how do we know we're console on i386? */ 509 return 1; 510 #endif 511 } 512 513 static void 514 chipsfb_clearscreen(struct chipsfb_softc *sc) 515 { 516 chipsfb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 517 } 518 519 /* 520 * wsdisplay_emulops 521 */ 522 523 static void 524 chipsfb_cursor(void *cookie, int on, int row, int col) 525 { 526 struct rasops_info *ri = cookie; 527 struct vcons_screen *scr = ri->ri_hw; 528 struct chipsfb_softc *sc = scr->scr_cookie; 529 int x, y, wi, he; 530 531 wi = ri->ri_font->fontwidth; 532 he = ri->ri_font->fontheight; 533 534 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 535 x = ri->ri_ccol * wi + ri->ri_xorigin; 536 y = ri->ri_crow * he + ri->ri_yorigin; 537 if (ri->ri_flg & RI_CURSOR) { 538 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 539 ri->ri_flg &= ~RI_CURSOR; 540 } 541 ri->ri_crow = row; 542 ri->ri_ccol = col; 543 if (on) { 544 x = ri->ri_ccol * wi + ri->ri_xorigin; 545 y = ri->ri_crow * he + ri->ri_yorigin; 546 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 547 ri->ri_flg |= RI_CURSOR; 548 } 549 } else { 550 ri->ri_flg &= ~RI_CURSOR; 551 ri->ri_crow = row; 552 ri->ri_ccol = col; 553 } 554 } 555 556 #if 0 557 int 558 chipsfb_mapchar(void *cookie, int uni, u_int *index) 559 { 560 return 0; 561 } 562 #endif 563 564 static void 565 chipsfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 566 { 567 struct rasops_info *ri = cookie; 568 struct vcons_screen *scr = ri->ri_hw; 569 struct chipsfb_softc *sc = scr->scr_cookie; 570 int32_t xs, xd, y, width, height; 571 572 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 573 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 574 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 575 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 576 width = ri->ri_font->fontwidth * ncols; 577 height = ri->ri_font->fontheight; 578 chipsfb_bitblt(sc, xs, y, xd, y, width, height, ROP_COPY); 579 } 580 } 581 582 static void 583 chipsfb_erasecols(void *cookie, int row, int startcol, int ncols, 584 long fillattr) 585 { 586 struct rasops_info *ri = cookie; 587 struct vcons_screen *scr = ri->ri_hw; 588 struct chipsfb_softc *sc = scr->scr_cookie; 589 int32_t x, y, width, height, fg, bg, ul; 590 591 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 592 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 593 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 594 width = ri->ri_font->fontwidth * ncols; 595 height = ri->ri_font->fontheight; 596 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 597 598 chipsfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 599 } 600 } 601 602 static void 603 chipsfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 604 { 605 struct rasops_info *ri = cookie; 606 struct vcons_screen *scr = ri->ri_hw; 607 struct chipsfb_softc *sc = scr->scr_cookie; 608 int32_t x, ys, yd, width, height; 609 610 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 611 x = ri->ri_xorigin; 612 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 613 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 614 width = ri->ri_emuwidth; 615 height = ri->ri_font->fontheight * nrows; 616 chipsfb_bitblt(sc, x, ys, x, yd, width, height, ROP_COPY); 617 } 618 } 619 620 static void 621 chipsfb_eraserows(void *cookie, int row, int nrows, long fillattr) 622 { 623 struct rasops_info *ri = cookie; 624 struct vcons_screen *scr = ri->ri_hw; 625 struct chipsfb_softc *sc = scr->scr_cookie; 626 int32_t x, y, width, height, fg, bg, ul; 627 628 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 629 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 630 if ((row == 0) && (nrows == ri->ri_rows)) { 631 /* clear the whole screen */ 632 chipsfb_rectfill(sc, 0, 0, ri->ri_width, 633 ri->ri_height, ri->ri_devcmap[bg]); 634 } else { 635 x = ri->ri_xorigin; 636 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 637 width = ri->ri_emuwidth; 638 height = ri->ri_font->fontheight * nrows; 639 chipsfb_rectfill(sc, x, y, width, height, 640 ri->ri_devcmap[bg]); 641 } 642 } 643 } 644 645 static void 646 chipsfb_bitblt(struct chipsfb_softc *sc, int xs, int ys, int xd, int yd, 647 int width, int height, uint8_t rop) 648 { 649 uint32_t src, dst, cmd = rop, stride, size; 650 651 cmd |= BLT_PAT_IS_SOLID; 652 653 /* we assume 8 bit for now */ 654 src = xs + ys * sc->linebytes; 655 dst = xd + yd * sc->linebytes; 656 657 if (xs < xd) { 658 /* right-to-left operation */ 659 cmd |= BLT_START_RIGHT; 660 src += sc->linebytes - 1; 661 dst += sc->linebytes - 1; 662 } 663 664 if (ys < yd) { 665 /* bottom-to-top operation */ 666 cmd |= BLT_START_BOTTOM; 667 src += (height - 1) * sc->linebytes; 668 dst += (height - 1) * sc->linebytes; 669 } 670 671 stride = (sc->linebytes << 16) | sc->linebytes; 672 size = (height << 16) | width; 673 674 chipsfb_wait_idle(sc); 675 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 676 chipsfb_write32(sc, CT_BLT_SRCADDR, src); 677 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 678 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 679 chipsfb_write32(sc, CT_BLT_SIZE, size); 680 #ifdef CHIPSFB_WAIT 681 chipsfb_wait_idle(sc); 682 #endif 683 } 684 685 static void 686 chipsfb_rectfill(struct chipsfb_softc *sc, int x, int y, int width, 687 int height, int colour) 688 { 689 uint32_t dst, cmd, stride, size; 690 691 cmd = BLT_PAT_IS_SOLID | BLT_PAT_IS_MONO | ROP_PAT; 692 693 /* we assume 8 bit for now */ 694 dst = x + y * sc->linebytes; 695 696 stride = (sc->linebytes << 16) | sc->linebytes; 697 size = (height << 16) | width; 698 699 chipsfb_wait_idle(sc); 700 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 701 chipsfb_write32(sc, CT_BLT_SRCADDR, dst); 702 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 703 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 704 chipsfb_write32(sc, CT_BLT_BG, colour); 705 chipsfb_write32(sc, CT_BLT_FG, colour); 706 chipsfb_write32(sc, CT_BLT_SIZE, size); 707 #ifdef CHIPSFB_WAIT 708 chipsfb_wait_idle(sc); 709 #endif 710 } 711 712 static void 713 chipsfb_putchar(void *cookie, int row, int col, u_int c, long attr) 714 { 715 struct rasops_info *ri = cookie; 716 struct vcons_screen *scr = ri->ri_hw; 717 struct chipsfb_softc *sc = scr->scr_cookie; 718 719 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 720 uint8_t *data; 721 int fg, bg, uc; 722 int x, y, wi, he; 723 724 wi = ri->ri_font->fontwidth; 725 he = ri->ri_font->fontheight; 726 727 if (!CHAR_IN_FONT(c, ri->ri_font)) 728 return; 729 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 730 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 731 x = ri->ri_xorigin + col * wi; 732 y = ri->ri_yorigin + row * he; 733 if (c == 0x20) { 734 chipsfb_rectfill(sc, x, y, wi, he, bg); 735 } else { 736 uc = c-ri->ri_font->firstchar; 737 data = (uint8_t *)ri->ri_font->data + uc * 738 ri->ri_fontscale; 739 chipsfb_setup_mono(sc, x, y, wi, he, fg, bg); 740 chipsfb_feed(sc, ri->ri_font->stride * he, data); 741 } 742 } 743 } 744 745 static void 746 chipsfb_setup_mono(struct chipsfb_softc *sc, int xd, int yd, int width, 747 int height, uint32_t fg, uint32_t bg) 748 { 749 uint32_t dst, cmd, stride, size; 750 751 cmd = BLT_PAT_IS_SOLID | BLT_SRC_IS_CPU | BLT_SRC_IS_MONO | ROP_COPY; 752 753 /* we assume 8 bit for now */ 754 dst = xd + yd * sc->linebytes; 755 756 stride = (sc->linebytes << 16); 757 size = (height << 16) | width; 758 759 chipsfb_wait_idle(sc); 760 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 761 chipsfb_write32(sc, CT_BLT_EXPCTL, MONO_SRC_ALIGN_BYTE); 762 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 763 chipsfb_write32(sc, CT_BLT_SRCADDR, 0); 764 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 765 chipsfb_write32(sc, CT_BLT_BG, bg); 766 chipsfb_write32(sc, CT_BLT_FG, fg); 767 chipsfb_write32(sc, CT_BLT_SIZE, size); 768 769 } 770 771 static void 772 chipsfb_feed(struct chipsfb_softc *sc, int count, uint8_t *data) 773 { 774 int i; 775 uint32_t latch = 0, bork; 776 int shift = 0; 777 778 for (i = 0; i < count; i++) { 779 bork = data[i]; 780 latch |= (bork << shift); 781 if (shift == 24) { 782 chipsfb_write32(sc, CT_OFF_DATA, latch); 783 latch = 0; 784 shift = 0; 785 } else 786 shift += 8; 787 } 788 789 if (shift != 0) { 790 chipsfb_write32(sc, CT_OFF_DATA, latch); 791 } 792 793 /* apparently the chip wants 64bit-aligned data or it won't go idle */ 794 if ((count + 3) & 0x04) { 795 chipsfb_write32(sc, CT_OFF_DATA, 0); 796 } 797 #ifdef CHIPSFB_WAIT 798 chipsfb_wait_idle(sc); 799 #endif 800 } 801 802 #ifdef CHIPSFB_DEBUG 803 static void 804 chipsfb_showpal(struct chipsfb_softc *sc) 805 { 806 int i, x = 0; 807 808 for (i = 0; i < 16; i++) { 809 chipsfb_rectfill(sc, x, 0, 64, 64, i); 810 x += 64; 811 } 812 } 813 #endif 814 815 #if 0 816 static int 817 chipsfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 818 { 819 820 return 0; 821 } 822 #endif 823 824 static void 825 chipsfb_restore_palette(struct chipsfb_softc *sc) 826 { 827 int i; 828 829 for (i = 0; i < 256; i++) { 830 chipsfb_putpalreg(sc, 831 i, 832 sc->sc_cmap_red[i], 833 sc->sc_cmap_green[i], 834 sc->sc_cmap_blue[i]); 835 } 836 } 837 838 /* 839 * wsdisplay_accessops 840 */ 841 842 static int 843 chipsfb_ioctl(void *v, void *vs, u_long cmd, caddr_t data, int flag, 844 struct lwp *l) 845 { 846 struct vcons_data *vd = v; 847 struct chipsfb_softc *sc = vd->cookie; 848 struct wsdisplay_fbinfo *wdf; 849 struct vcons_screen *ms = vd->active; 850 851 switch (cmd) { 852 case WSDISPLAYIO_GTYPE: 853 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 854 return 0; 855 856 case WSDISPLAYIO_GINFO: 857 wdf = (void *)data; 858 wdf->height = ms->scr_ri.ri_height; 859 wdf->width = ms->scr_ri.ri_width; 860 wdf->depth = ms->scr_ri.ri_depth; 861 wdf->cmsize = 256; 862 return 0; 863 864 case WSDISPLAYIO_GETCMAP: 865 return chipsfb_getcmap(sc, 866 (struct wsdisplay_cmap *)data); 867 868 case WSDISPLAYIO_PUTCMAP: 869 return chipsfb_putcmap(sc, 870 (struct wsdisplay_cmap *)data); 871 872 /* PCI config read/write passthrough. */ 873 case PCI_IOC_CFGREAD: 874 case PCI_IOC_CFGWRITE: 875 return (pci_devioctl(sc->sc_pc, sc->sc_pcitag, 876 cmd, data, flag, l)); 877 878 case WSDISPLAYIO_SMODE: 879 { 880 int new_mode = *(int*)data; 881 if (new_mode != sc->sc_mode) { 882 sc->sc_mode = new_mode; 883 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 884 chipsfb_restore_palette(sc); 885 vcons_redraw_screen(ms); 886 } 887 } 888 } 889 return 0; 890 } 891 return EPASSTHROUGH; 892 } 893 894 static paddr_t 895 chipsfb_mmap(void *v, void *vs, off_t offset, int prot) 896 { 897 struct vcons_data *vd = v; 898 struct chipsfb_softc *sc = vd->cookie; 899 struct lwp *me; 900 paddr_t pa; 901 902 /* 'regular' framebuffer mmap()ing */ 903 if (offset < sc->sc_fbsize) { 904 pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot, 905 BUS_SPACE_MAP_LINEAR); 906 return pa; 907 } 908 909 /* 910 * restrict all other mappings to processes with superuser privileges 911 * or the kernel itself 912 */ 913 me = curlwp; 914 if (me != NULL) { 915 if (kauth_authorize_generic(me->l_cred, KAUTH_GENERIC_ISSUSER, 916 NULL) != 0) { 917 printf("%s: mmap() rejected.\n", sc->sc_dev.dv_xname); 918 return -1; 919 } 920 } 921 922 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 923 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 924 BUS_SPACE_MAP_LINEAR); 925 return pa; 926 } 927 928 #ifdef macppc 929 /* allow mapping of IO space */ 930 if ((offset >= 0xf2000000) && (offset < 0xf2800000)) { 931 pa = bus_space_mmap(sc->sc_iot, offset - 0xf2000000, 0, prot, 932 BUS_SPACE_MAP_LINEAR); 933 return pa; 934 } 935 #endif 936 937 #ifdef OFB_ALLOW_OTHERS 938 if (offset >= 0x80000000) { 939 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 940 BUS_SPACE_MAP_LINEAR); 941 return pa; 942 } 943 #endif 944 return -1; 945 } 946 947 static void 948 chipsfb_init_screen(void *cookie, struct vcons_screen *scr, 949 int existing, long *defattr) 950 { 951 struct chipsfb_softc *sc = cookie; 952 struct rasops_info *ri = &scr->scr_ri; 953 954 ri->ri_depth = sc->bits_per_pixel; 955 ri->ri_width = sc->width; 956 ri->ri_height = sc->height; 957 ri->ri_stride = sc->width; 958 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 959 960 ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh); 961 962 #ifdef CHIPSFB_DEBUG 963 printf("addr: %08lx\n", (ulong)ri->ri_bits); 964 #endif 965 if (existing) { 966 ri->ri_flg |= RI_CLEAR; 967 } 968 969 rasops_init(ri, sc->height/8, sc->width/8); 970 ri->ri_caps = WSSCREEN_WSCOLORS; 971 972 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 973 sc->width / ri->ri_font->fontwidth); 974 975 ri->ri_hw = scr; 976 ri->ri_ops.copyrows = chipsfb_copyrows; 977 ri->ri_ops.copycols = chipsfb_copycols; 978 ri->ri_ops.eraserows = chipsfb_eraserows; 979 ri->ri_ops.erasecols = chipsfb_erasecols; 980 ri->ri_ops.cursor = chipsfb_cursor; 981 ri->ri_ops.putchar = chipsfb_putchar; 982 } 983 984 #if 0 985 int 986 chipsfb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 987 { 988 989 return 0; 990 } 991 #endif 992 993 static void 994 chipsfb_init(struct chipsfb_softc *sc) 995 { 996 997 chipsfb_wait_idle(sc); 998 999 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_IO_CONTROL, 1000 ENABLE_CRTC_EXT | ENABLE_ATTR_EXT); 1001 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_ADDR_MAPPING, 1002 ENABLE_LINEAR); 1003 1004 /* setup the blitter */ 1005 } 1006
Indexes created Wed Sep 24 15:09:51 GMT 2025