chipsfb.c revision 1.4
1 /* $NetBSD: chipsfb.c,v 1.4 2006/10/16 22:36:30 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 1.4 2006/10/16 22:36:30 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 static uint32_t chipsfb_probe_vram(struct chipsfb_softc *); 165 166 struct wsscreen_descr chipsfb_defaultscreen = { 167 "default", 168 0, 0, 169 NULL, 170 8, 16, 171 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 172 }; 173 174 const struct wsscreen_descr *_chipsfb_scrlist[] = { 175 &chipsfb_defaultscreen, 176 /* XXX other formats, graphics screen? */ 177 }; 178 179 struct wsscreen_list chipsfb_screenlist = { 180 sizeof(_chipsfb_scrlist) / sizeof(struct wsscreen_descr *), _chipsfb_scrlist 181 }; 182 183 static int chipsfb_ioctl(void *, void *, u_long, caddr_t, int, 184 struct lwp *); 185 static paddr_t chipsfb_mmap(void *, void *, off_t, int); 186 static void chipsfb_clearscreen(struct chipsfb_softc *); 187 static void chipsfb_init_screen(void *, struct vcons_screen *, int, 188 long *); 189 190 191 struct wsdisplay_accessops chipsfb_accessops = { 192 chipsfb_ioctl, 193 chipsfb_mmap, 194 NULL, /* load_font */ 195 NULL, /* polls */ 196 NULL, /* scroll */ 197 }; 198 199 /* 200 * Inline functions for getting access to register aperture. 201 */ 202 static inline void 203 chipsfb_write32(struct chipsfb_softc *sc, uint32_t reg, uint32_t val) 204 { 205 bus_space_write_4(sc->sc_fbt, sc->sc_fbh, reg, val); 206 } 207 208 static inline uint32_t 209 chipsfb_read32(struct chipsfb_softc *sc, uint32_t reg) 210 { 211 return bus_space_read_4(sc->sc_fbt, sc->sc_fbh, reg); 212 } 213 214 static inline void 215 chipsfb_write_vga(struct chipsfb_softc *sc, uint32_t reg, uint8_t val) 216 { 217 bus_space_write_1(sc->sc_iot, sc->sc_ioregh, reg, val); 218 } 219 220 static inline uint8_t 221 chipsfb_read_vga(struct chipsfb_softc *sc, uint32_t reg) 222 { 223 return bus_space_read_1(sc->sc_iot, sc->sc_ioregh, reg); 224 } 225 226 static inline uint8_t 227 chipsfb_read_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index) 228 { 229 230 chipsfb_write_vga(sc, reg & 0xfffe, index); 231 return chipsfb_read_vga(sc, reg | 0x0001); 232 } 233 234 static inline void 235 chipsfb_write_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index, 236 uint8_t val) 237 { 238 239 chipsfb_write_vga(sc, reg & 0xfffe, index); 240 chipsfb_write_vga(sc, reg | 0x0001, val); 241 } 242 243 static void 244 chipsfb_wait_idle(struct chipsfb_softc *sc) 245 { 246 247 #ifdef CHIPSFB_DEBUG 248 chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0); 249 #endif 250 251 /* spin until the blitter is idle */ 252 while ((chipsfb_read32(sc, CT_BLT_CONTROL) & BLT_IS_BUSY) != 0) { 253 } 254 255 #ifdef CHIPSFB_DEBUG 256 chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0xffffffff); 257 #endif 258 } 259 260 static int 261 chipsfb_match(struct device *parent, struct cfdata *match, void *aux) 262 { 263 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 264 265 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY || 266 PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA) 267 return 0; 268 if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CHIPS) && 269 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CHIPS_65550)) 270 return 100; 271 return 0; 272 } 273 274 static void 275 chipsfb_attach(struct device *parent, struct device *self, void *aux) 276 { 277 struct chipsfb_softc *sc = (void *)self; 278 struct pci_attach_args *pa = aux; 279 char devinfo[256]; 280 struct wsemuldisplaydev_attach_args aa; 281 struct rasops_info *ri; 282 pcireg_t screg; 283 ulong defattr; 284 int console, width, height, node, i, j; 285 #ifdef HAVE_OPENFIRMWARE 286 int linebytes, depth; 287 #endif 288 uint32_t bg, fg, ul; 289 290 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 291 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 292 sc->sc_pc = pa->pa_pc; 293 sc->sc_pcitag = pa->pa_tag; 294 sc->sc_dacw = -1; 295 296 screg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 297 screg |= PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED; 298 pci_conf_write(sc->sc_pc, sc->sc_pcitag,PCI_COMMAND_STATUS_REG,screg); 299 300 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 301 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 302 303 sc->sc_memt = pa->pa_memt; 304 sc->sc_iot = pa->pa_iot; 305 306 /* the framebuffer */ 307 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 308 BUS_SPACE_MAP_LINEAR, 309 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 310 printf("%s: failed to map the frame buffer.\n", 311 sc->sc_dev.dv_xname); 312 } 313 314 /* IO-mapped registers */ 315 if (bus_space_map(sc->sc_iot, 0x0, PAGE_SIZE, 0, &sc->sc_ioregh) != 0) { 316 printf("%s: failed to map IO-mapped registers.\n", 317 sc->sc_dev.dv_xname); 318 } 319 320 sc->memsize = chipsfb_probe_vram(sc); 321 chipsfb_init(sc); 322 323 /* we should read these from the chip instead of depending on OF */ 324 width = height = -1; 325 326 /* detect panel size */ 327 width = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HSIZE_LSB); 328 width |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HORZ_OVERFLOW_1) 329 & 0x0f) << 8; 330 width = (width + 1) * 8; 331 height = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VSIZE_LSB); 332 height |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VERT_OVERFLOW_1) 333 & 0x0f) << 8; 334 height++; 335 printf("Panel size: %d x %d\n", width, height); 336 337 #ifdef HAVE_OPENFIRMWARE 338 if (OF_getprop(node, "width", &width, 4) != 4) 339 OF_interpret("screen-width", 1, &width); 340 if (OF_getprop(node, "height", &height, 4) != 4) 341 OF_interpret("screen-height", 1, &height); 342 if (OF_getprop(node, "linebytes", &linebytes, 4) != 4) 343 linebytes = width; /* XXX */ 344 if (OF_getprop(node, "depth", &depth, 4) != 4) 345 depth = 8; /* XXX */ 346 347 if (width == -1 || height == -1) 348 return; 349 350 sc->width = width; 351 sc->height = height; 352 sc->bits_per_pixel = depth; 353 sc->linebytes = linebytes; 354 printf("%s: initial resolution %dx%d, %d bit\n", sc->sc_dev.dv_xname, 355 sc->width, sc->height, sc->bits_per_pixel); 356 #endif 357 358 #ifdef notyet 359 /* XXX this should at least be configurable via kernel config */ 360 chipsfb_set_videomode(sc, &videomode_list[16]); 361 #endif 362 363 vcons_init(&sc->vd, sc, &chipsfb_defaultscreen, &chipsfb_accessops); 364 sc->vd.init_screen = chipsfb_init_screen; 365 366 console = chipsfb_is_console(pa); 367 368 ri = &chipsfb_console_screen.scr_ri; 369 if (console) { 370 vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1, 371 &defattr); 372 chipsfb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 373 374 chipsfb_defaultscreen.textops = &ri->ri_ops; 375 chipsfb_defaultscreen.capabilities = ri->ri_caps; 376 chipsfb_defaultscreen.nrows = ri->ri_rows; 377 chipsfb_defaultscreen.ncols = ri->ri_cols; 378 wsdisplay_cnattach(&chipsfb_defaultscreen, ri, 0, 0, defattr); 379 } else { 380 /* 381 * since we're not the console we can postpone the rest 382 * until someone actually allocates a screen for us 383 */ 384 #ifdef notyet 385 chipsfb_set_videomode(sc, &videomode_list[0]); 386 #endif 387 } 388 389 rasops_unpack_attr(defattr, &fg, &bg, &ul); 390 sc->sc_bg = ri->ri_devcmap[bg]; 391 chipsfb_clearscreen(sc); 392 393 printf("%s: %d MB aperture, %d MB VRAM at 0x%08x\n", 394 sc->sc_dev.dv_xname, (u_int)(sc->sc_fbsize >> 20), 395 sc->memsize >> 20, (u_int)sc->sc_fb); 396 #ifdef chipsfb_DEBUG 397 printf("fb: %08lx\n", (ulong)ri->ri_bits); 398 #endif 399 400 j = 0; 401 for (i = 0; i < 256; i++) { 402 chipsfb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 403 rasops_cmap[j + 2]); 404 j += 3; 405 } 406 407 aa.console = console; 408 aa.scrdata = &chipsfb_screenlist; 409 aa.accessops = &chipsfb_accessops; 410 aa.accesscookie = &sc->vd; 411 412 config_found(self, &aa, wsemuldisplaydevprint); 413 } 414 415 static int 416 chipsfb_putpalreg(struct chipsfb_softc *sc, uint8_t index, uint8_t r, 417 uint8_t g, uint8_t b) 418 { 419 420 sc->sc_cmap_red[index] = r; 421 sc->sc_cmap_green[index] = g; 422 sc->sc_cmap_blue[index] = b; 423 424 chipsfb_write_vga(sc, CT_DACMASK, 0xff); 425 chipsfb_write_vga(sc, CT_WRITEINDEX, index); 426 chipsfb_write_vga(sc, CT_DACDATA, r); 427 chipsfb_write_vga(sc, CT_DACDATA, g); 428 chipsfb_write_vga(sc, CT_DACDATA, b); 429 430 return 0; 431 } 432 433 static int 434 chipsfb_putcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 435 { 436 u_char *r, *g, *b; 437 u_int index = cm->index; 438 u_int count = cm->count; 439 int i, error; 440 u_char rbuf[256], gbuf[256], bbuf[256]; 441 442 #ifdef chipsfb_DEBUG 443 printf("putcmap: %d %d\n",index, count); 444 #endif 445 if (cm->index >= 256 || cm->count > 256 || 446 (cm->index + cm->count) > 256) 447 return EINVAL; 448 error = copyin(cm->red, &rbuf[index], count); 449 if (error) 450 return error; 451 error = copyin(cm->green, &gbuf[index], count); 452 if (error) 453 return error; 454 error = copyin(cm->blue, &bbuf[index], count); 455 if (error) 456 return error; 457 458 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 459 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 460 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 461 462 r = &sc->sc_cmap_red[index]; 463 g = &sc->sc_cmap_green[index]; 464 b = &sc->sc_cmap_blue[index]; 465 466 for (i = 0; i < count; i++) { 467 chipsfb_putpalreg(sc, index, *r, *g, *b); 468 index++; 469 r++, g++, b++; 470 } 471 return 0; 472 } 473 474 static int 475 chipsfb_getcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 476 { 477 u_int index = cm->index; 478 u_int count = cm->count; 479 int error; 480 481 if (index >= 255 || count > 256 || index + count > 256) 482 return EINVAL; 483 484 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 485 if (error) 486 return error; 487 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 488 if (error) 489 return error; 490 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 491 if (error) 492 return error; 493 494 return 0; 495 } 496 497 static int 498 chipsfb_is_console(struct pci_attach_args *pa) 499 { 500 501 #ifdef HAVE_OPENFIRMWARE 502 /* check if we're the /chosen console device */ 503 int chosen, stdout, node, us; 504 505 us = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 506 chosen = OF_finddevice("/chosen"); 507 OF_getprop(chosen, "stdout", &stdout, 4); 508 node = OF_instance_to_package(stdout); 509 return(us == node); 510 #else 511 /* XXX how do we know we're console on i386? */ 512 return 1; 513 #endif 514 } 515 516 static void 517 chipsfb_clearscreen(struct chipsfb_softc *sc) 518 { 519 chipsfb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 520 } 521 522 /* 523 * wsdisplay_emulops 524 */ 525 526 static void 527 chipsfb_cursor(void *cookie, int on, int row, int col) 528 { 529 struct rasops_info *ri = cookie; 530 struct vcons_screen *scr = ri->ri_hw; 531 struct chipsfb_softc *sc = scr->scr_cookie; 532 int x, y, wi, he; 533 534 wi = ri->ri_font->fontwidth; 535 he = ri->ri_font->fontheight; 536 537 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 538 x = ri->ri_ccol * wi + ri->ri_xorigin; 539 y = ri->ri_crow * he + ri->ri_yorigin; 540 if (ri->ri_flg & RI_CURSOR) { 541 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 542 ri->ri_flg &= ~RI_CURSOR; 543 } 544 ri->ri_crow = row; 545 ri->ri_ccol = col; 546 if (on) { 547 x = ri->ri_ccol * wi + ri->ri_xorigin; 548 y = ri->ri_crow * he + ri->ri_yorigin; 549 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 550 ri->ri_flg |= RI_CURSOR; 551 } 552 } else { 553 ri->ri_flg &= ~RI_CURSOR; 554 ri->ri_crow = row; 555 ri->ri_ccol = col; 556 } 557 } 558 559 #if 0 560 int 561 chipsfb_mapchar(void *cookie, int uni, u_int *index) 562 { 563 return 0; 564 } 565 #endif 566 567 static void 568 chipsfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 569 { 570 struct rasops_info *ri = cookie; 571 struct vcons_screen *scr = ri->ri_hw; 572 struct chipsfb_softc *sc = scr->scr_cookie; 573 int32_t xs, xd, y, width, height; 574 575 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 576 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 577 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 578 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 579 width = ri->ri_font->fontwidth * ncols; 580 height = ri->ri_font->fontheight; 581 chipsfb_bitblt(sc, xs, y, xd, y, width, height, ROP_COPY); 582 } 583 } 584 585 static void 586 chipsfb_erasecols(void *cookie, int row, int startcol, int ncols, 587 long fillattr) 588 { 589 struct rasops_info *ri = cookie; 590 struct vcons_screen *scr = ri->ri_hw; 591 struct chipsfb_softc *sc = scr->scr_cookie; 592 int32_t x, y, width, height, fg, bg, ul; 593 594 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 595 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 596 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 597 width = ri->ri_font->fontwidth * ncols; 598 height = ri->ri_font->fontheight; 599 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 600 601 chipsfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 602 } 603 } 604 605 static void 606 chipsfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 607 { 608 struct rasops_info *ri = cookie; 609 struct vcons_screen *scr = ri->ri_hw; 610 struct chipsfb_softc *sc = scr->scr_cookie; 611 int32_t x, ys, yd, width, height; 612 613 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 614 x = ri->ri_xorigin; 615 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 616 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 617 width = ri->ri_emuwidth; 618 height = ri->ri_font->fontheight * nrows; 619 chipsfb_bitblt(sc, x, ys, x, yd, width, height, ROP_COPY); 620 } 621 } 622 623 static void 624 chipsfb_eraserows(void *cookie, int row, int nrows, long fillattr) 625 { 626 struct rasops_info *ri = cookie; 627 struct vcons_screen *scr = ri->ri_hw; 628 struct chipsfb_softc *sc = scr->scr_cookie; 629 int32_t x, y, width, height, fg, bg, ul; 630 631 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 632 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 633 if ((row == 0) && (nrows == ri->ri_rows)) { 634 /* clear the whole screen */ 635 chipsfb_rectfill(sc, 0, 0, ri->ri_width, 636 ri->ri_height, ri->ri_devcmap[bg]); 637 } else { 638 x = ri->ri_xorigin; 639 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 640 width = ri->ri_emuwidth; 641 height = ri->ri_font->fontheight * nrows; 642 chipsfb_rectfill(sc, x, y, width, height, 643 ri->ri_devcmap[bg]); 644 } 645 } 646 } 647 648 static void 649 chipsfb_bitblt(struct chipsfb_softc *sc, int xs, int ys, int xd, int yd, 650 int width, int height, uint8_t rop) 651 { 652 uint32_t src, dst, cmd = rop, stride, size; 653 654 cmd |= BLT_PAT_IS_SOLID; 655 656 /* we assume 8 bit for now */ 657 src = xs + ys * sc->linebytes; 658 dst = xd + yd * sc->linebytes; 659 660 if (xs < xd) { 661 /* right-to-left operation */ 662 cmd |= BLT_START_RIGHT; 663 src += sc->linebytes - 1; 664 dst += sc->linebytes - 1; 665 } 666 667 if (ys < yd) { 668 /* bottom-to-top operation */ 669 cmd |= BLT_START_BOTTOM; 670 src += (height - 1) * sc->linebytes; 671 dst += (height - 1) * sc->linebytes; 672 } 673 674 stride = (sc->linebytes << 16) | sc->linebytes; 675 size = (height << 16) | width; 676 677 chipsfb_wait_idle(sc); 678 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 679 chipsfb_write32(sc, CT_BLT_SRCADDR, src); 680 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 681 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 682 chipsfb_write32(sc, CT_BLT_SIZE, size); 683 #ifdef CHIPSFB_WAIT 684 chipsfb_wait_idle(sc); 685 #endif 686 } 687 688 static void 689 chipsfb_rectfill(struct chipsfb_softc *sc, int x, int y, int width, 690 int height, int colour) 691 { 692 uint32_t dst, cmd, stride, size; 693 694 cmd = BLT_PAT_IS_SOLID | BLT_PAT_IS_MONO | ROP_PAT; 695 696 /* we assume 8 bit for now */ 697 dst = x + y * sc->linebytes; 698 699 stride = (sc->linebytes << 16) | sc->linebytes; 700 size = (height << 16) | width; 701 702 chipsfb_wait_idle(sc); 703 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 704 chipsfb_write32(sc, CT_BLT_SRCADDR, dst); 705 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 706 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 707 chipsfb_write32(sc, CT_BLT_BG, colour); 708 chipsfb_write32(sc, CT_BLT_FG, colour); 709 chipsfb_write32(sc, CT_BLT_SIZE, size); 710 #ifdef CHIPSFB_WAIT 711 chipsfb_wait_idle(sc); 712 #endif 713 } 714 715 static void 716 chipsfb_putchar(void *cookie, int row, int col, u_int c, long attr) 717 { 718 struct rasops_info *ri = cookie; 719 struct vcons_screen *scr = ri->ri_hw; 720 struct chipsfb_softc *sc = scr->scr_cookie; 721 722 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 723 uint8_t *data; 724 int fg, bg, uc; 725 int x, y, wi, he; 726 727 wi = ri->ri_font->fontwidth; 728 he = ri->ri_font->fontheight; 729 730 if (!CHAR_IN_FONT(c, ri->ri_font)) 731 return; 732 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 733 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 734 x = ri->ri_xorigin + col * wi; 735 y = ri->ri_yorigin + row * he; 736 if (c == 0x20) { 737 chipsfb_rectfill(sc, x, y, wi, he, bg); 738 } else { 739 uc = c-ri->ri_font->firstchar; 740 data = (uint8_t *)ri->ri_font->data + uc * 741 ri->ri_fontscale; 742 chipsfb_setup_mono(sc, x, y, wi, he, fg, bg); 743 chipsfb_feed(sc, ri->ri_font->stride * he, data); 744 } 745 } 746 } 747 748 static void 749 chipsfb_setup_mono(struct chipsfb_softc *sc, int xd, int yd, int width, 750 int height, uint32_t fg, uint32_t bg) 751 { 752 uint32_t dst, cmd, stride, size; 753 754 cmd = BLT_PAT_IS_SOLID | BLT_SRC_IS_CPU | BLT_SRC_IS_MONO | ROP_COPY; 755 756 /* we assume 8 bit for now */ 757 dst = xd + yd * sc->linebytes; 758 759 stride = (sc->linebytes << 16); 760 size = (height << 16) | width; 761 762 chipsfb_wait_idle(sc); 763 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 764 chipsfb_write32(sc, CT_BLT_EXPCTL, MONO_SRC_ALIGN_BYTE); 765 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 766 chipsfb_write32(sc, CT_BLT_SRCADDR, 0); 767 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 768 chipsfb_write32(sc, CT_BLT_BG, bg); 769 chipsfb_write32(sc, CT_BLT_FG, fg); 770 chipsfb_write32(sc, CT_BLT_SIZE, size); 771 772 } 773 774 static void 775 chipsfb_feed(struct chipsfb_softc *sc, int count, uint8_t *data) 776 { 777 int i; 778 uint32_t latch = 0, bork; 779 int shift = 0; 780 781 for (i = 0; i < count; i++) { 782 bork = data[i]; 783 latch |= (bork << shift); 784 if (shift == 24) { 785 chipsfb_write32(sc, CT_OFF_DATA, latch); 786 latch = 0; 787 shift = 0; 788 } else 789 shift += 8; 790 } 791 792 if (shift != 0) { 793 chipsfb_write32(sc, CT_OFF_DATA, latch); 794 } 795 796 /* apparently the chip wants 64bit-aligned data or it won't go idle */ 797 if ((count + 3) & 0x04) { 798 chipsfb_write32(sc, CT_OFF_DATA, 0); 799 } 800 #ifdef CHIPSFB_WAIT 801 chipsfb_wait_idle(sc); 802 #endif 803 } 804 805 #ifdef CHIPSFB_DEBUG 806 static void 807 chipsfb_showpal(struct chipsfb_softc *sc) 808 { 809 int i, x = 0; 810 811 for (i = 0; i < 16; i++) { 812 chipsfb_rectfill(sc, x, 0, 64, 64, i); 813 x += 64; 814 } 815 } 816 #endif 817 818 #if 0 819 static int 820 chipsfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 821 { 822 823 return 0; 824 } 825 #endif 826 827 static void 828 chipsfb_restore_palette(struct chipsfb_softc *sc) 829 { 830 int i; 831 832 for (i = 0; i < 256; i++) { 833 chipsfb_putpalreg(sc, 834 i, 835 sc->sc_cmap_red[i], 836 sc->sc_cmap_green[i], 837 sc->sc_cmap_blue[i]); 838 } 839 } 840 841 /* 842 * wsdisplay_accessops 843 */ 844 845 static int 846 chipsfb_ioctl(void *v, void *vs, u_long cmd, caddr_t data, int flag, 847 struct lwp *l) 848 { 849 struct vcons_data *vd = v; 850 struct chipsfb_softc *sc = vd->cookie; 851 struct wsdisplay_fbinfo *wdf; 852 struct vcons_screen *ms = vd->active; 853 854 switch (cmd) { 855 case WSDISPLAYIO_GTYPE: 856 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 857 return 0; 858 859 case WSDISPLAYIO_GINFO: 860 wdf = (void *)data; 861 wdf->height = ms->scr_ri.ri_height; 862 wdf->width = ms->scr_ri.ri_width; 863 wdf->depth = ms->scr_ri.ri_depth; 864 wdf->cmsize = 256; 865 return 0; 866 867 case WSDISPLAYIO_GETCMAP: 868 return chipsfb_getcmap(sc, 869 (struct wsdisplay_cmap *)data); 870 871 case WSDISPLAYIO_PUTCMAP: 872 return chipsfb_putcmap(sc, 873 (struct wsdisplay_cmap *)data); 874 875 /* PCI config read/write passthrough. */ 876 case PCI_IOC_CFGREAD: 877 case PCI_IOC_CFGWRITE: 878 return (pci_devioctl(sc->sc_pc, sc->sc_pcitag, 879 cmd, data, flag, l)); 880 881 case WSDISPLAYIO_SMODE: 882 { 883 int new_mode = *(int*)data; 884 if (new_mode != sc->sc_mode) { 885 sc->sc_mode = new_mode; 886 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 887 chipsfb_restore_palette(sc); 888 vcons_redraw_screen(ms); 889 } 890 } 891 } 892 return 0; 893 } 894 return EPASSTHROUGH; 895 } 896 897 static paddr_t 898 chipsfb_mmap(void *v, void *vs, off_t offset, int prot) 899 { 900 struct vcons_data *vd = v; 901 struct chipsfb_softc *sc = vd->cookie; 902 struct lwp *me; 903 paddr_t pa; 904 905 /* 'regular' framebuffer mmap()ing */ 906 if (offset < sc->memsize) { 907 pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot, 908 BUS_SPACE_MAP_LINEAR); 909 return pa; 910 } 911 912 /* 913 * restrict all other mappings to processes with superuser privileges 914 * or the kernel itself 915 */ 916 me = curlwp; 917 if (me != NULL) { 918 if (kauth_authorize_generic(me->l_cred, KAUTH_GENERIC_ISSUSER, 919 NULL) != 0) { 920 printf("%s: mmap() rejected.\n", sc->sc_dev.dv_xname); 921 return -1; 922 } 923 } 924 925 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 926 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 927 BUS_SPACE_MAP_LINEAR); 928 return pa; 929 } 930 931 #ifdef macppc 932 /* allow mapping of IO space */ 933 if ((offset >= 0xf2000000) && (offset < 0xf2800000)) { 934 pa = bus_space_mmap(sc->sc_iot, offset - 0xf2000000, 0, prot, 935 BUS_SPACE_MAP_LINEAR); 936 return pa; 937 } 938 #endif 939 940 #ifdef OFB_ALLOW_OTHERS 941 if (offset >= 0x80000000) { 942 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 943 BUS_SPACE_MAP_LINEAR); 944 return pa; 945 } 946 #endif 947 return -1; 948 } 949 950 static void 951 chipsfb_init_screen(void *cookie, struct vcons_screen *scr, 952 int existing, long *defattr) 953 { 954 struct chipsfb_softc *sc = cookie; 955 struct rasops_info *ri = &scr->scr_ri; 956 957 ri->ri_depth = sc->bits_per_pixel; 958 ri->ri_width = sc->width; 959 ri->ri_height = sc->height; 960 ri->ri_stride = sc->width; 961 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 962 963 ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh); 964 965 #ifdef CHIPSFB_DEBUG 966 printf("addr: %08lx\n", (ulong)ri->ri_bits); 967 #endif 968 if (existing) { 969 ri->ri_flg |= RI_CLEAR; 970 } 971 972 rasops_init(ri, sc->height/8, sc->width/8); 973 ri->ri_caps = WSSCREEN_WSCOLORS; 974 975 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 976 sc->width / ri->ri_font->fontwidth); 977 978 ri->ri_hw = scr; 979 ri->ri_ops.copyrows = chipsfb_copyrows; 980 ri->ri_ops.copycols = chipsfb_copycols; 981 ri->ri_ops.eraserows = chipsfb_eraserows; 982 ri->ri_ops.erasecols = chipsfb_erasecols; 983 ri->ri_ops.cursor = chipsfb_cursor; 984 ri->ri_ops.putchar = chipsfb_putchar; 985 } 986 987 #if 0 988 int 989 chipsfb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 990 { 991 992 return 0; 993 } 994 #endif 995 996 static void 997 chipsfb_init(struct chipsfb_softc *sc) 998 { 999 1000 chipsfb_wait_idle(sc); 1001 1002 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_IO_CONTROL, 1003 ENABLE_CRTC_EXT | ENABLE_ATTR_EXT); 1004 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_ADDR_MAPPING, 1005 ENABLE_LINEAR); 1006 1007 /* setup the blitter */ 1008 } 1009 1010 static uint32_t 1011 chipsfb_probe_vram(struct chipsfb_softc *sc) 1012 { 1013 uint32_t ofs = 0x00080000; /* 512kB */ 1014 1015 /* 1016 * advance in 0.5MB steps, see if we can read back what we wrote and 1017 * if what we wrote to 0 is left untouched. Max. fb size is 4MB so 1018 * we voluntarily stop there. 1019 */ 1020 chipsfb_write32(sc, 0, 0xf0f0f0f0); 1021 chipsfb_write32(sc, ofs, 0x0f0f0f0f); 1022 while ((chipsfb_read32(sc, 0) == 0xf0f0f0f0) && 1023 (chipsfb_read32(sc, ofs) == 0x0f0f0f0f) && 1024 (ofs < 0x00400000)) { 1025 1026 ofs += 0x00080000; 1027 chipsfb_write32(sc, ofs, 0x0f0f0f0f); 1028 } 1029 1030 return ofs; 1031 } 1032
Indexes created Wed Sep 24 05:09:52 GMT 2025