chipsfb.c revision 1.2
1 /* $NetBSD: chipsfb.c,v 1.2 2006/09/27 05:19:23 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 1.2 2006/09/27 05:19:23 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 /* spin until the blitter is idle */ 246 while ((chipsfb_read32(sc, CT_BLT_CONTROL) & BLT_IS_BUSY) != 0) { 247 delay(1); 248 } 249 } 250 251 static int 252 chipsfb_match(struct device *parent, struct cfdata *match, void *aux) 253 { 254 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 255 256 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY || 257 PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA) 258 return 0; 259 if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CHIPS) && 260 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CHIPS_65550)) 261 return 100; 262 return 0; 263 } 264 265 static void 266 chipsfb_attach(struct device *parent, struct device *self, void *aux) 267 { 268 struct chipsfb_softc *sc = (void *)self; 269 struct pci_attach_args *pa = aux; 270 char devinfo[256]; 271 struct wsemuldisplaydev_attach_args aa; 272 struct rasops_info *ri; 273 pcireg_t screg; 274 ulong defattr; 275 int console, width, height, node, i, j; 276 #ifdef HAVE_OPENFIRMWARE 277 int linebytes, depth; 278 #endif 279 uint32_t bg, fg, ul; 280 281 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 282 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 283 sc->sc_pc = pa->pa_pc; 284 sc->sc_pcitag = pa->pa_tag; 285 sc->sc_dacw = -1; 286 287 screg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 288 screg |= PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED; 289 pci_conf_write(sc->sc_pc, sc->sc_pcitag,PCI_COMMAND_STATUS_REG,screg); 290 291 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 292 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 293 294 sc->sc_memt = pa->pa_memt; 295 sc->sc_iot = pa->pa_iot; 296 297 /* the framebuffer */ 298 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 299 BUS_SPACE_MAP_LINEAR, 300 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 301 printf("%s: failed to map the frame buffer.\n", 302 sc->sc_dev.dv_xname); 303 } 304 305 /* IO-mapped registers */ 306 if (bus_space_map(sc->sc_iot, 0x0, PAGE_SIZE, 0, &sc->sc_ioregh) != 0) { 307 printf("%s: failed to map IO-mapped registers.\n", 308 sc->sc_dev.dv_xname); 309 } 310 311 chipsfb_init(sc); 312 313 /* we should read these from the chip instead of depending on OF */ 314 width = height = -1; 315 316 /* detect panel size */ 317 width = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HSIZE_LSB); 318 width |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HORZ_OVERFLOW_1) 319 & 0x0f) << 8; 320 width = (width + 1) * 8; 321 height = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VSIZE_LSB); 322 height |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VERT_OVERFLOW_1) 323 & 0x0f) << 8; 324 height++; 325 printf("Panel size: %d x %d\n", width, height); 326 327 #ifdef HAVE_OPENFIRMWARE 328 if (OF_getprop(node, "width", &width, 4) != 4) 329 OF_interpret("screen-width", 1, &width); 330 if (OF_getprop(node, "height", &height, 4) != 4) 331 OF_interpret("screen-height", 1, &height); 332 if (OF_getprop(node, "linebytes", &linebytes, 4) != 4) 333 linebytes = width; /* XXX */ 334 if (OF_getprop(node, "depth", &depth, 4) != 4) 335 depth = 8; /* XXX */ 336 337 if (width == -1 || height == -1) 338 return; 339 340 sc->width = width; 341 sc->height = height; 342 sc->bits_per_pixel = depth; 343 sc->linebytes = linebytes; 344 printf("%s: initial resolution %dx%d, %d bit\n", sc->sc_dev.dv_xname, 345 sc->width, sc->height, sc->bits_per_pixel); 346 #endif 347 348 #ifdef notyet 349 /* XXX this should at least be configurable via kernel config */ 350 chipsfb_set_videomode(sc, &videomode_list[16]); 351 #endif 352 353 vcons_init(&sc->vd, sc, &chipsfb_defaultscreen, &chipsfb_accessops); 354 sc->vd.init_screen = chipsfb_init_screen; 355 356 console = chipsfb_is_console(pa); 357 358 ri = &chipsfb_console_screen.scr_ri; 359 if (console) { 360 vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1, 361 &defattr); 362 chipsfb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 363 364 chipsfb_defaultscreen.textops = &ri->ri_ops; 365 chipsfb_defaultscreen.capabilities = ri->ri_caps; 366 chipsfb_defaultscreen.nrows = ri->ri_rows; 367 chipsfb_defaultscreen.ncols = ri->ri_cols; 368 wsdisplay_cnattach(&chipsfb_defaultscreen, ri, 0, 0, defattr); 369 } else { 370 /* 371 * since we're not the console we can postpone the rest 372 * until someone actually allocates a screen for us 373 */ 374 #ifdef notyet 375 chipsfb_set_videomode(sc, &videomode_list[0]); 376 #endif 377 } 378 379 rasops_unpack_attr(defattr, &fg, &bg, &ul); 380 sc->sc_bg = ri->ri_devcmap[bg]; 381 chipsfb_clearscreen(sc); 382 383 printf("%s: %d MB aperture at 0x%08x\n", 384 sc->sc_dev.dv_xname, (u_int)(sc->sc_fbsize >> 20), 385 (u_int)sc->sc_fb); 386 #ifdef chipsfb_DEBUG 387 printf("fb: %08lx\n", (ulong)ri->ri_bits); 388 #endif 389 390 j = 0; 391 for (i = 0; i < 256; i++) { 392 chipsfb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 393 rasops_cmap[j + 2]); 394 j += 3; 395 } 396 397 aa.console = console; 398 aa.scrdata = &chipsfb_screenlist; 399 aa.accessops = &chipsfb_accessops; 400 aa.accesscookie = &sc->vd; 401 402 config_found(self, &aa, wsemuldisplaydevprint); 403 } 404 405 static int 406 chipsfb_putpalreg(struct chipsfb_softc *sc, uint8_t index, uint8_t r, 407 uint8_t g, uint8_t b) 408 { 409 410 sc->sc_cmap_red[index] = r; 411 sc->sc_cmap_green[index] = g; 412 sc->sc_cmap_blue[index] = b; 413 414 chipsfb_write_vga(sc, CT_DACMASK, 0xff); 415 chipsfb_write_vga(sc, CT_WRITEINDEX, index); 416 chipsfb_write_vga(sc, CT_DACDATA, r); 417 chipsfb_write_vga(sc, CT_DACDATA, g); 418 chipsfb_write_vga(sc, CT_DACDATA, b); 419 420 return 0; 421 } 422 423 static int 424 chipsfb_putcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 425 { 426 u_char *r, *g, *b; 427 u_int index = cm->index; 428 u_int count = cm->count; 429 int i, error; 430 u_char rbuf[256], gbuf[256], bbuf[256]; 431 432 #ifdef chipsfb_DEBUG 433 printf("putcmap: %d %d\n",index, count); 434 #endif 435 if (cm->index >= 256 || cm->count > 256 || 436 (cm->index + cm->count) > 256) 437 return EINVAL; 438 error = copyin(cm->red, &rbuf[index], count); 439 if (error) 440 return error; 441 error = copyin(cm->green, &gbuf[index], count); 442 if (error) 443 return error; 444 error = copyin(cm->blue, &bbuf[index], count); 445 if (error) 446 return error; 447 448 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 449 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 450 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 451 452 r = &sc->sc_cmap_red[index]; 453 g = &sc->sc_cmap_green[index]; 454 b = &sc->sc_cmap_blue[index]; 455 456 for (i = 0; i < count; i++) { 457 chipsfb_putpalreg(sc, index, *r, *g, *b); 458 index++; 459 r++, g++, b++; 460 } 461 return 0; 462 } 463 464 static int 465 chipsfb_getcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 466 { 467 u_int index = cm->index; 468 u_int count = cm->count; 469 int error; 470 471 if (index >= 255 || count > 256 || index + count > 256) 472 return EINVAL; 473 474 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 475 if (error) 476 return error; 477 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 478 if (error) 479 return error; 480 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 481 if (error) 482 return error; 483 484 return 0; 485 } 486 487 static int 488 chipsfb_is_console(struct pci_attach_args *pa) 489 { 490 491 #ifdef HAVE_OPENFIRMWARE 492 /* check if we're the /chosen console device */ 493 int chosen, stdout, node, us; 494 495 us = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 496 chosen = OF_finddevice("/chosen"); 497 OF_getprop(chosen, "stdout", &stdout, 4); 498 node = OF_instance_to_package(stdout); 499 return(us == node); 500 #else 501 /* XXX how do we know we're console on i386? */ 502 return 1; 503 #endif 504 } 505 506 static void 507 chipsfb_clearscreen(struct chipsfb_softc *sc) 508 { 509 chipsfb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 510 } 511 512 /* 513 * wsdisplay_emulops 514 */ 515 516 static void 517 chipsfb_cursor(void *cookie, int on, int row, int col) 518 { 519 struct rasops_info *ri = cookie; 520 struct vcons_screen *scr = ri->ri_hw; 521 struct chipsfb_softc *sc = scr->scr_cookie; 522 int x, y, wi, he; 523 524 wi = ri->ri_font->fontwidth; 525 he = ri->ri_font->fontheight; 526 527 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 528 x = ri->ri_ccol * wi + ri->ri_xorigin; 529 y = ri->ri_crow * he + ri->ri_yorigin; 530 if (ri->ri_flg & RI_CURSOR) { 531 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 532 ri->ri_flg &= ~RI_CURSOR; 533 } 534 ri->ri_crow = row; 535 ri->ri_ccol = col; 536 if (on) { 537 x = ri->ri_ccol * wi + ri->ri_xorigin; 538 y = ri->ri_crow * he + ri->ri_yorigin; 539 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 540 ri->ri_flg |= RI_CURSOR; 541 } 542 } else { 543 ri->ri_flg &= ~RI_CURSOR; 544 ri->ri_crow = row; 545 ri->ri_ccol = col; 546 } 547 } 548 549 #if 0 550 int 551 chipsfb_mapchar(void *cookie, int uni, u_int *index) 552 { 553 return 0; 554 } 555 #endif 556 557 static void 558 chipsfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 559 { 560 struct rasops_info *ri = cookie; 561 struct vcons_screen *scr = ri->ri_hw; 562 struct chipsfb_softc *sc = scr->scr_cookie; 563 int32_t xs, xd, y, width, height; 564 565 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 566 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 567 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 568 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 569 width = ri->ri_font->fontwidth * ncols; 570 height = ri->ri_font->fontheight; 571 chipsfb_bitblt(sc, xs, y, xd, y, width, height, ROP_COPY); 572 } 573 } 574 575 static void 576 chipsfb_erasecols(void *cookie, int row, int startcol, int ncols, 577 long fillattr) 578 { 579 struct rasops_info *ri = cookie; 580 struct vcons_screen *scr = ri->ri_hw; 581 struct chipsfb_softc *sc = scr->scr_cookie; 582 int32_t x, y, width, height, fg, bg, ul; 583 584 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 585 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 586 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 587 width = ri->ri_font->fontwidth * ncols; 588 height = ri->ri_font->fontheight; 589 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 590 591 chipsfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 592 } 593 } 594 595 static void 596 chipsfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 597 { 598 struct rasops_info *ri = cookie; 599 struct vcons_screen *scr = ri->ri_hw; 600 struct chipsfb_softc *sc = scr->scr_cookie; 601 int32_t x, ys, yd, width, height; 602 603 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 604 x = ri->ri_xorigin; 605 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 606 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 607 width = ri->ri_emuwidth; 608 height = ri->ri_font->fontheight * nrows; 609 chipsfb_bitblt(sc, x, ys, x, yd, width, height, ROP_COPY); 610 } 611 } 612 613 static void 614 chipsfb_eraserows(void *cookie, int row, int nrows, long fillattr) 615 { 616 struct rasops_info *ri = cookie; 617 struct vcons_screen *scr = ri->ri_hw; 618 struct chipsfb_softc *sc = scr->scr_cookie; 619 int32_t x, y, width, height, fg, bg, ul; 620 621 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 622 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 623 if ((row == 0) && (nrows == ri->ri_rows)) { 624 /* clear the whole screen */ 625 chipsfb_rectfill(sc, 0, 0, ri->ri_width, 626 ri->ri_height, ri->ri_devcmap[bg]); 627 } else { 628 x = ri->ri_xorigin; 629 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 630 width = ri->ri_emuwidth; 631 height = ri->ri_font->fontheight * nrows; 632 chipsfb_rectfill(sc, x, y, width, height, 633 ri->ri_devcmap[bg]); 634 } 635 } 636 } 637 638 static void 639 chipsfb_bitblt(struct chipsfb_softc *sc, int xs, int ys, int xd, int yd, 640 int width, int height, uint8_t rop) 641 { 642 uint32_t src, dst, cmd = rop, stride, size; 643 644 cmd |= BLT_PAT_IS_SOLID; 645 646 /* we assume 8 bit for now */ 647 src = xs + ys * sc->linebytes; 648 dst = xd + yd * sc->linebytes; 649 650 if (xs < xd) { 651 /* right-to-left operation */ 652 cmd |= BLT_START_RIGHT; 653 src += sc->linebytes - 1; 654 dst += sc->linebytes - 1; 655 } 656 657 if (ys < yd) { 658 /* bottom-to-top operation */ 659 cmd |= BLT_START_BOTTOM; 660 src += (height - 1) * sc->linebytes; 661 dst += (height - 1) * sc->linebytes; 662 } 663 664 stride = (sc->linebytes << 16) | sc->linebytes; 665 size = (height << 16) | width; 666 667 chipsfb_wait_idle(sc); 668 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 669 chipsfb_write32(sc, CT_BLT_SRCADDR, src); 670 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 671 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 672 chipsfb_write32(sc, CT_BLT_SIZE, size); 673 #ifdef CHIPSFB_WAIT 674 chipsfb_wait_idle(sc); 675 #endif 676 } 677 678 static void 679 chipsfb_rectfill(struct chipsfb_softc *sc, int x, int y, int width, 680 int height, int colour) 681 { 682 uint32_t dst, cmd, stride, size; 683 684 cmd = BLT_PAT_IS_SOLID | BLT_PAT_IS_MONO | ROP_PAT; 685 686 /* we assume 8 bit for now */ 687 dst = x + y * sc->linebytes; 688 689 stride = (sc->linebytes << 16) | sc->linebytes; 690 size = (height << 16) | width; 691 692 chipsfb_wait_idle(sc); 693 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 694 chipsfb_write32(sc, CT_BLT_SRCADDR, dst); 695 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 696 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 697 chipsfb_write32(sc, CT_BLT_BG, colour); 698 chipsfb_write32(sc, CT_BLT_FG, colour); 699 chipsfb_write32(sc, CT_BLT_SIZE, size); 700 #ifdef CHIPSFB_WAIT 701 chipsfb_wait_idle(sc); 702 #endif 703 } 704 705 static void 706 chipsfb_putchar(void *cookie, int row, int col, u_int c, long attr) 707 { 708 struct rasops_info *ri = cookie; 709 struct vcons_screen *scr = ri->ri_hw; 710 struct chipsfb_softc *sc = scr->scr_cookie; 711 712 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 713 uint8_t *data; 714 int fg, bg, uc; 715 int x, y, wi, he; 716 717 wi = ri->ri_font->fontwidth; 718 he = ri->ri_font->fontheight; 719 720 if (!CHAR_IN_FONT(c, ri->ri_font)) 721 return; 722 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 723 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 724 x = ri->ri_xorigin + col * wi; 725 y = ri->ri_yorigin + row * he; 726 if (c == 0x20) { 727 chipsfb_rectfill(sc, x, y, wi, he, bg); 728 } else { 729 uc = c-ri->ri_font->firstchar; 730 data = (uint8_t *)ri->ri_font->data + uc * 731 ri->ri_fontscale; 732 chipsfb_setup_mono(sc, x, y, wi, he, fg, bg); 733 chipsfb_feed(sc, ri->ri_font->stride * he, data); 734 } 735 } 736 } 737 738 static void 739 chipsfb_setup_mono(struct chipsfb_softc *sc, int xd, int yd, int width, 740 int height, uint32_t fg, uint32_t bg) 741 { 742 uint32_t dst, cmd, stride, size; 743 744 cmd = BLT_PAT_IS_SOLID | BLT_SRC_IS_CPU | BLT_SRC_IS_MONO | ROP_COPY; 745 746 /* we assume 8 bit for now */ 747 dst = xd + yd * sc->linebytes; 748 749 stride = (sc->linebytes << 16); 750 size = (height << 16) | width; 751 752 chipsfb_wait_idle(sc); 753 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 754 chipsfb_write32(sc, CT_BLT_EXPCTL, MONO_SRC_ALIGN_BYTE); 755 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 756 chipsfb_write32(sc, CT_BLT_SRCADDR, 0); 757 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 758 chipsfb_write32(sc, CT_BLT_BG, bg); 759 chipsfb_write32(sc, CT_BLT_FG, fg); 760 chipsfb_write32(sc, CT_BLT_SIZE, size); 761 762 } 763 764 static void 765 chipsfb_feed(struct chipsfb_softc *sc, int count, uint8_t *data) 766 { 767 int i; 768 uint32_t latch = 0, bork; 769 int shift = 0; 770 771 for (i = 0; i < count; i++) { 772 bork = data[i]; 773 latch |= (bork << shift); 774 if (shift == 24) { 775 chipsfb_write32(sc, CT_OFF_DATA, latch); 776 latch = 0; 777 shift = 0; 778 } else 779 shift += 8; 780 } 781 if (shift != 0) { 782 chipsfb_write32(sc, CT_OFF_DATA, latch); 783 } else { 784 /* 785 * sometimes the chip just sits here waiting for more data - 786 * sending one more word gets it going again 787 */ 788 chipsfb_write32(sc, CT_OFF_DATA, 0); 789 } 790 #ifdef CHIPSFB_WAIT 791 chipsfb_wait_idle(sc); 792 #endif 793 } 794 795 #ifdef CHIPSFB_DEBUG 796 static void 797 chipsfb_showpal(struct chipsfb_softc *sc) 798 { 799 int i, x = 0; 800 801 for (i = 0; i < 16; i++) { 802 chipsfb_rectfill(sc, x, 0, 64, 64, i); 803 x += 64; 804 } 805 } 806 #endif 807 808 #if 0 809 static int 810 chipsfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 811 { 812 813 return 0; 814 } 815 #endif 816 817 static void 818 chipsfb_restore_palette(struct chipsfb_softc *sc) 819 { 820 int i; 821 822 for (i = 0; i < 256; i++) { 823 chipsfb_putpalreg(sc, 824 i, 825 sc->sc_cmap_red[i], 826 sc->sc_cmap_green[i], 827 sc->sc_cmap_blue[i]); 828 } 829 } 830 831 /* 832 * wsdisplay_accessops 833 */ 834 835 static int 836 chipsfb_ioctl(void *v, void *vs, u_long cmd, caddr_t data, int flag, 837 struct lwp *l) 838 { 839 struct vcons_data *vd = v; 840 struct chipsfb_softc *sc = vd->cookie; 841 struct wsdisplay_fbinfo *wdf; 842 struct vcons_screen *ms = vd->active; 843 844 switch (cmd) { 845 case WSDISPLAYIO_GTYPE: 846 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 847 return 0; 848 849 case WSDISPLAYIO_GINFO: 850 wdf = (void *)data; 851 wdf->height = ms->scr_ri.ri_height; 852 wdf->width = ms->scr_ri.ri_width; 853 wdf->depth = ms->scr_ri.ri_depth; 854 wdf->cmsize = 256; 855 return 0; 856 857 case WSDISPLAYIO_GETCMAP: 858 return chipsfb_getcmap(sc, 859 (struct wsdisplay_cmap *)data); 860 861 case WSDISPLAYIO_PUTCMAP: 862 return chipsfb_putcmap(sc, 863 (struct wsdisplay_cmap *)data); 864 865 /* PCI config read/write passthrough. */ 866 case PCI_IOC_CFGREAD: 867 case PCI_IOC_CFGWRITE: 868 return (pci_devioctl(sc->sc_pc, sc->sc_pcitag, 869 cmd, data, flag, l)); 870 871 case WSDISPLAYIO_SMODE: 872 { 873 int new_mode = *(int*)data; 874 if (new_mode != sc->sc_mode) { 875 sc->sc_mode = new_mode; 876 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 877 chipsfb_restore_palette(sc); 878 vcons_redraw_screen(ms); 879 } 880 } 881 } 882 return 0; 883 } 884 return EPASSTHROUGH; 885 } 886 887 static paddr_t 888 chipsfb_mmap(void *v, void *vs, off_t offset, int prot) 889 { 890 struct vcons_data *vd = v; 891 struct chipsfb_softc *sc = vd->cookie; 892 struct lwp *me; 893 paddr_t pa; 894 895 /* 'regular' framebuffer mmap()ing */ 896 if (offset < sc->sc_fbsize) { 897 pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot, 898 BUS_SPACE_MAP_LINEAR); 899 return pa; 900 } 901 902 /* 903 * restrict all other mappings to processes with superuser privileges 904 * or the kernel itself 905 */ 906 me = curlwp; 907 if (me != NULL) { 908 if (kauth_authorize_generic(me->l_cred, KAUTH_GENERIC_ISSUSER, 909 NULL) != 0) { 910 printf("%s: mmap() rejected.\n", sc->sc_dev.dv_xname); 911 return -1; 912 } 913 } 914 915 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 916 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 917 BUS_SPACE_MAP_LINEAR); 918 return pa; 919 } 920 921 #ifdef macppc 922 /* allow mapping of IO space */ 923 if ((offset >= 0xf2000000) && (offset < 0xf2800000)) { 924 pa = bus_space_mmap(sc->sc_iot, offset - 0xf2000000, 0, prot, 925 BUS_SPACE_MAP_LINEAR); 926 return pa; 927 } 928 #endif 929 930 #ifdef OFB_ALLOW_OTHERS 931 if (offset >= 0x80000000) { 932 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 933 BUS_SPACE_MAP_LINEAR); 934 return pa; 935 } 936 #endif 937 return -1; 938 } 939 940 static void 941 chipsfb_init_screen(void *cookie, struct vcons_screen *scr, 942 int existing, long *defattr) 943 { 944 struct chipsfb_softc *sc = cookie; 945 struct rasops_info *ri = &scr->scr_ri; 946 947 ri->ri_depth = sc->bits_per_pixel; 948 ri->ri_width = sc->width; 949 ri->ri_height = sc->height; 950 ri->ri_stride = sc->width; 951 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 952 953 ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh); 954 955 #ifdef CHIPSFB_DEBUG 956 printf("addr: %08lx\n", (ulong)ri->ri_bits); 957 #endif 958 if (existing) { 959 ri->ri_flg |= RI_CLEAR; 960 } 961 962 rasops_init(ri, sc->height/8, sc->width/8); 963 ri->ri_caps = WSSCREEN_WSCOLORS; 964 965 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 966 sc->width / ri->ri_font->fontwidth); 967 968 ri->ri_hw = scr; 969 ri->ri_ops.copyrows = chipsfb_copyrows; 970 ri->ri_ops.copycols = chipsfb_copycols; 971 ri->ri_ops.eraserows = chipsfb_eraserows; 972 ri->ri_ops.erasecols = chipsfb_erasecols; 973 ri->ri_ops.cursor = chipsfb_cursor; 974 ri->ri_ops.putchar = chipsfb_putchar; 975 } 976 977 #if 0 978 int 979 chipsfb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 980 { 981 982 return 0; 983 } 984 #endif 985 986 static void 987 chipsfb_init(struct chipsfb_softc *sc) 988 { 989 990 chipsfb_wait_idle(sc); 991 992 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_IO_CONTROL, 993 ENABLE_CRTC_EXT | ENABLE_ATTR_EXT); 994 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_ADDR_MAPPING, 995 ENABLE_LINEAR); 996 997 /* setup the blitter */ 998 } 999
Indexes created Tue Sep 23 02:09:52 GMT 2025