chipsfb.c revision 1.1
1 /* $NetBSD: chipsfb.c,v 1.1 2006/09/23 05:12:22 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 1.1 2006/09/23 05:12:22 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 #if 0 153 static void chipsfb_putchar(void *, int, int, u_int, long); 154 static void chipsfb_setup_mono(struct chipsfb_softc *, int, int, int, 155 int, uint32_t, uint32_t); 156 static void chipsfb_feed_line(struct chipsfb_softc *, int, uint8_t *); 157 #endif 158 #ifdef chipsfb_DEBUG 159 static void chipsfb_showpal(struct chipsfb_softc *); 160 #endif 161 static void chipsfb_restore_palette(struct chipsfb_softc *); 162 163 static void chipsfb_wait_idle(struct chipsfb_softc *); 164 165 static int chipsfb_intr(void *); 166 167 struct wsscreen_descr chipsfb_defaultscreen = { 168 "default", 169 0, 0, 170 NULL, 171 8, 16, 172 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 173 }; 174 175 const struct wsscreen_descr *_chipsfb_scrlist[] = { 176 &chipsfb_defaultscreen, 177 /* XXX other formats, graphics screen? */ 178 }; 179 180 struct wsscreen_list chipsfb_screenlist = { 181 sizeof(_chipsfb_scrlist) / sizeof(struct wsscreen_descr *), _chipsfb_scrlist 182 }; 183 184 static int chipsfb_ioctl(void *, void *, u_long, caddr_t, int, 185 struct lwp *); 186 static paddr_t chipsfb_mmap(void *, void *, off_t, int); 187 static void chipsfb_clearscreen(struct chipsfb_softc *); 188 static void chipsfb_init_screen(void *, struct vcons_screen *, int, 189 long *); 190 191 192 struct wsdisplay_accessops chipsfb_accessops = { 193 chipsfb_ioctl, 194 chipsfb_mmap, 195 NULL, /* load_font */ 196 NULL, /* polls */ 197 NULL, /* scroll */ 198 }; 199 200 /* 201 * Inline functions for getting access to register aperture. 202 */ 203 static inline void 204 chipsfb_write32(struct chipsfb_softc *sc, uint32_t reg, uint32_t val) 205 { 206 bus_space_write_4(sc->sc_fbt, sc->sc_fbh, reg, val); 207 } 208 209 static inline uint32_t 210 chipsfb_read32(struct chipsfb_softc *sc, uint32_t reg) 211 { 212 return bus_space_read_4(sc->sc_fbt, sc->sc_fbh, reg); 213 } 214 215 static inline void 216 chipsfb_write_vga(struct chipsfb_softc *sc, uint32_t reg, uint8_t val) 217 { 218 bus_space_write_1(sc->sc_iot, sc->sc_ioregh, reg, val); 219 } 220 221 static inline uint8_t 222 chipsfb_read_vga(struct chipsfb_softc *sc, uint32_t reg) 223 { 224 return bus_space_read_1(sc->sc_iot, sc->sc_ioregh, reg); 225 } 226 227 static inline uint8_t 228 chipsfb_read_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index) 229 { 230 231 chipsfb_write_vga(sc, reg & 0xfffe, index); 232 return chipsfb_read_vga(sc, reg | 0x0001); 233 } 234 235 static inline void 236 chipsfb_write_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index, 237 uint8_t val) 238 { 239 240 chipsfb_write_vga(sc, reg & 0xfffe, index); 241 chipsfb_write_vga(sc, reg | 0x0001, val); 242 } 243 244 static void 245 chipsfb_wait_idle(struct chipsfb_softc *sc) 246 { 247 248 /* spin until the blitter is idle */ 249 while ((chipsfb_read32(sc, CT_BLT_CONTROL) & BLT_IS_BUSY) != 0) { 250 delay(1); 251 } 252 } 253 254 static int 255 chipsfb_match(struct device *parent, struct cfdata *match, void *aux) 256 { 257 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 258 259 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY || 260 PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA) 261 return 0; 262 if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CHIPS) && 263 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CHIPS_65550)) 264 return 100; 265 return 0; 266 } 267 268 static void 269 chipsfb_attach(struct device *parent, struct device *self, void *aux) 270 { 271 struct chipsfb_softc *sc = (void *)self; 272 struct pci_attach_args *pa = aux; 273 char devinfo[256]; 274 struct wsemuldisplaydev_attach_args aa; 275 struct rasops_info *ri; 276 pcireg_t screg; 277 pci_intr_handle_t ih; 278 ulong defattr; 279 const char *intrstr; 280 int console, width, height, node, i, j; 281 #ifdef HAVE_OPENFIRMWARE 282 int linebytes, depth; 283 #endif 284 uint32_t bg, fg, ul; 285 286 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 287 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 288 sc->sc_pc = pa->pa_pc; 289 sc->sc_pcitag = pa->pa_tag; 290 sc->sc_dacw = -1; 291 292 screg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 293 screg |= PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED; 294 pci_conf_write(sc->sc_pc, sc->sc_pcitag,PCI_COMMAND_STATUS_REG,screg); 295 296 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 297 printf(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 298 299 sc->sc_memt = pa->pa_memt; 300 sc->sc_iot = pa->pa_iot; 301 302 /* the framebuffer */ 303 if (pci_mapreg_map(pa, 0x10, PCI_MAPREG_TYPE_MEM, 304 BUS_SPACE_MAP_LINEAR, 305 &sc->sc_fbt, &sc->sc_fbh, &sc->sc_fb, &sc->sc_fbsize)) { 306 printf("%s: failed to map the frame buffer.\n", 307 sc->sc_dev.dv_xname); 308 } 309 310 /* IO-mapped registers */ 311 if (bus_space_map(sc->sc_iot, 0x0, PAGE_SIZE, 0, &sc->sc_ioregh) != 0) { 312 printf("%s: failed to map IO-mapped registers.\n", 313 sc->sc_dev.dv_xname); 314 } 315 316 chipsfb_init(sc); 317 318 /* we should read these from the chip instead of depending on OF */ 319 width = height = -1; 320 321 /* detect panel size */ 322 width = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HSIZE_LSB); 323 width |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HORZ_OVERFLOW_1) 324 & 0x0f) << 8; 325 width = (width + 1) * 8; 326 height = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VSIZE_LSB); 327 height |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VERT_OVERFLOW_1) 328 & 0x0f) << 8; 329 height++; 330 printf("Panel size: %d x %d\n", width, height); 331 332 #ifdef HAVE_OPENFIRMWARE 333 if (OF_getprop(node, "width", &width, 4) != 4) 334 OF_interpret("screen-width", 1, &width); 335 if (OF_getprop(node, "height", &height, 4) != 4) 336 OF_interpret("screen-height", 1, &height); 337 if (OF_getprop(node, "linebytes", &linebytes, 4) != 4) 338 linebytes = width; /* XXX */ 339 if (OF_getprop(node, "depth", &depth, 4) != 4) 340 depth = 8; /* XXX */ 341 342 if (width == -1 || height == -1) 343 return; 344 345 sc->width = width; 346 sc->height = height; 347 sc->bits_per_pixel = depth; 348 sc->linebytes = linebytes; 349 printf("%s: initial resolution %dx%d, %d bit\n", sc->sc_dev.dv_xname, 350 sc->width, sc->height, sc->bits_per_pixel); 351 #endif 352 353 /* XXX this should at least be configurable via kernel config */ 354 //chipsfb_set_videomode(sc, &videomode_list[16]); 355 356 vcons_init(&sc->vd, sc, &chipsfb_defaultscreen, &chipsfb_accessops); 357 sc->vd.init_screen = chipsfb_init_screen; 358 359 console = chipsfb_is_console(pa); 360 361 ri = &chipsfb_console_screen.scr_ri; 362 if (console) { 363 vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1, 364 &defattr); 365 chipsfb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 366 367 chipsfb_defaultscreen.textops = &ri->ri_ops; 368 chipsfb_defaultscreen.capabilities = ri->ri_caps; 369 chipsfb_defaultscreen.nrows = ri->ri_rows; 370 chipsfb_defaultscreen.ncols = ri->ri_cols; 371 wsdisplay_cnattach(&chipsfb_defaultscreen, ri, 0, 0, defattr); 372 } else { 373 /* 374 * since we're not the console we can postpone the rest 375 * until someone actually allocates a screen for us 376 */ 377 //chipsfb_set_videomode(sc, &videomode_list[0]); 378 } 379 380 rasops_unpack_attr(defattr, &fg, &bg, &ul); 381 sc->sc_bg = ri->ri_devcmap[bg]; 382 chipsfb_clearscreen(sc); 383 384 printf("%s: %d MB aperture at 0x%08x\n", 385 sc->sc_dev.dv_xname, (u_int)(sc->sc_fbsize >> 20), 386 (u_int)sc->sc_fb); 387 #ifdef chipsfb_DEBUG 388 printf("fb: %08lx\n", (ulong)ri->ri_bits); 389 #endif 390 391 j = 0; 392 for (i = 0; i < 256; i++) { 393 chipsfb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 394 rasops_cmap[j + 2]); 395 j += 3; 396 } 397 398 /* Interrupt. We don't use it for anything yet */ 399 if (pci_intr_map(pa, &ih)) { 400 printf("%s: failed to map interrupt\n", sc->sc_dev.dv_xname); 401 } else { 402 intrstr = pci_intr_string(sc->sc_pc, ih); 403 sc->sc_ih = pci_intr_establish(sc->sc_pc, ih, IPL_NET, 404 chipsfb_intr, sc); 405 if (sc->sc_ih == NULL) { 406 printf("%s: failed to establish interrupt", 407 sc->sc_dev.dv_xname); 408 if (intrstr != NULL) 409 printf(" at %s", intrstr); 410 printf("\n"); 411 } else { 412 printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname, 413 intrstr); 414 } 415 } 416 417 aa.console = console; 418 aa.scrdata = &chipsfb_screenlist; 419 aa.accessops = &chipsfb_accessops; 420 aa.accesscookie = &sc->vd; 421 422 config_found(self, &aa, wsemuldisplaydevprint); 423 } 424 425 static int 426 chipsfb_putpalreg(struct chipsfb_softc *sc, uint8_t index, uint8_t r, 427 uint8_t g, uint8_t b) 428 { 429 430 sc->sc_cmap_red[index] = r; 431 sc->sc_cmap_green[index] = g; 432 sc->sc_cmap_blue[index] = b; 433 434 chipsfb_write_vga(sc, CT_DACMASK, 0xff); 435 chipsfb_write_vga(sc, CT_WRITEINDEX, index); 436 chipsfb_write_vga(sc, CT_DACDATA, r); 437 chipsfb_write_vga(sc, CT_DACDATA, g); 438 chipsfb_write_vga(sc, CT_DACDATA, b); 439 440 return 0; 441 } 442 443 static int 444 chipsfb_putcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 445 { 446 u_char *r, *g, *b; 447 u_int index = cm->index; 448 u_int count = cm->count; 449 int i, error; 450 u_char rbuf[256], gbuf[256], bbuf[256]; 451 452 #ifdef chipsfb_DEBUG 453 printf("putcmap: %d %d\n",index, count); 454 #endif 455 if (cm->index >= 256 || cm->count > 256 || 456 (cm->index + cm->count) > 256) 457 return EINVAL; 458 error = copyin(cm->red, &rbuf[index], count); 459 if (error) 460 return error; 461 error = copyin(cm->green, &gbuf[index], count); 462 if (error) 463 return error; 464 error = copyin(cm->blue, &bbuf[index], count); 465 if (error) 466 return error; 467 468 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 469 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 470 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 471 472 r = &sc->sc_cmap_red[index]; 473 g = &sc->sc_cmap_green[index]; 474 b = &sc->sc_cmap_blue[index]; 475 476 for (i = 0; i < count; i++) { 477 chipsfb_putpalreg(sc, index, *r, *g, *b); 478 index++; 479 r++, g++, b++; 480 } 481 return 0; 482 } 483 484 static int 485 chipsfb_getcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 486 { 487 u_int index = cm->index; 488 u_int count = cm->count; 489 int error; 490 491 if (index >= 255 || count > 256 || index + count > 256) 492 return EINVAL; 493 494 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 495 if (error) 496 return error; 497 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 498 if (error) 499 return error; 500 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 501 if (error) 502 return error; 503 504 return 0; 505 } 506 507 static int 508 chipsfb_is_console(struct pci_attach_args *pa) 509 { 510 511 #ifdef HAVE_OPENFIRMWARE 512 /* check if we're the /chosen console device */ 513 int chosen, stdout, node, us; 514 515 us = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 516 chosen = OF_finddevice("/chosen"); 517 OF_getprop(chosen, "stdout", &stdout, 4); 518 node = OF_instance_to_package(stdout); 519 return(us == node); 520 #else 521 /* XXX how do we know we're console on i386? */ 522 return 1; 523 #endif 524 } 525 526 static void 527 chipsfb_clearscreen(struct chipsfb_softc *sc) 528 { 529 chipsfb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 530 } 531 532 /* 533 * wsdisplay_emulops 534 */ 535 536 static void 537 chipsfb_cursor(void *cookie, int on, int row, int col) 538 { 539 struct rasops_info *ri = cookie; 540 struct vcons_screen *scr = ri->ri_hw; 541 struct chipsfb_softc *sc = scr->scr_cookie; 542 int x, y, wi, he; 543 544 wi = ri->ri_font->fontwidth; 545 he = ri->ri_font->fontheight; 546 547 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 548 x = ri->ri_ccol * wi + ri->ri_xorigin; 549 y = ri->ri_crow * he + ri->ri_yorigin; 550 if (ri->ri_flg & RI_CURSOR) { 551 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 552 ri->ri_flg &= ~RI_CURSOR; 553 } 554 ri->ri_crow = row; 555 ri->ri_ccol = col; 556 if (on) { 557 x = ri->ri_ccol * wi + ri->ri_xorigin; 558 y = ri->ri_crow * he + ri->ri_yorigin; 559 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 560 ri->ri_flg |= RI_CURSOR; 561 } 562 } else { 563 ri->ri_flg &= ~RI_CURSOR; 564 ri->ri_crow = row; 565 ri->ri_ccol = col; 566 } 567 } 568 569 #if 0 570 int 571 chipsfb_mapchar(void *cookie, int uni, u_int *index) 572 { 573 return 0; 574 } 575 #endif 576 577 static void 578 chipsfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 579 { 580 struct rasops_info *ri = cookie; 581 struct vcons_screen *scr = ri->ri_hw; 582 struct chipsfb_softc *sc = scr->scr_cookie; 583 int32_t xs, xd, y, width, height; 584 585 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 586 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 587 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 588 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 589 width = ri->ri_font->fontwidth * ncols; 590 height = ri->ri_font->fontheight; 591 chipsfb_bitblt(sc, xs, y, xd, y, width, height, ROP_COPY); 592 } 593 } 594 595 static void 596 chipsfb_erasecols(void *cookie, int row, int startcol, int ncols, 597 long fillattr) 598 { 599 struct rasops_info *ri = cookie; 600 struct vcons_screen *scr = ri->ri_hw; 601 struct chipsfb_softc *sc = scr->scr_cookie; 602 int32_t x, y, width, height, fg, bg, ul; 603 604 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 605 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 606 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 607 width = ri->ri_font->fontwidth * ncols; 608 height = ri->ri_font->fontheight; 609 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 610 611 chipsfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 612 } 613 } 614 615 static void 616 chipsfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 617 { 618 struct rasops_info *ri = cookie; 619 struct vcons_screen *scr = ri->ri_hw; 620 struct chipsfb_softc *sc = scr->scr_cookie; 621 int32_t x, ys, yd, width, height; 622 623 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 624 x = ri->ri_xorigin; 625 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 626 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 627 width = ri->ri_emuwidth; 628 height = ri->ri_font->fontheight * nrows; 629 chipsfb_bitblt(sc, x, ys, x, yd, width, height, ROP_COPY); 630 } 631 } 632 633 static void 634 chipsfb_eraserows(void *cookie, int row, int nrows, long fillattr) 635 { 636 struct rasops_info *ri = cookie; 637 struct vcons_screen *scr = ri->ri_hw; 638 struct chipsfb_softc *sc = scr->scr_cookie; 639 int32_t x, y, width, height, fg, bg, ul; 640 641 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 642 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 643 if ((row == 0) && (nrows == ri->ri_rows)) { 644 /* clear the whole screen */ 645 chipsfb_rectfill(sc, 0, 0, ri->ri_width, 646 ri->ri_height, ri->ri_devcmap[bg]); 647 } else { 648 x = ri->ri_xorigin; 649 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 650 width = ri->ri_emuwidth; 651 height = ri->ri_font->fontheight * nrows; 652 chipsfb_rectfill(sc, x, y, width, height, 653 ri->ri_devcmap[bg]); 654 } 655 } 656 } 657 658 static void 659 chipsfb_bitblt(struct chipsfb_softc *sc, int xs, int ys, int xd, int yd, 660 int width, int height, uint8_t rop) 661 { 662 uint32_t src, dst, cmd = rop, stride, size; 663 664 cmd |= BLT_PAT_IS_SOLID; 665 666 /* we assume 8 bit for now */ 667 src = xs + ys * sc->linebytes; 668 dst = xd + yd * sc->linebytes; 669 670 if (xs < xd) { 671 /* right-to-left operation */ 672 cmd |= BLT_START_RIGHT; 673 src += sc->linebytes - 1; 674 dst += sc->linebytes - 1; 675 } 676 677 if (ys < yd) { 678 /* bottom-to-top operation */ 679 cmd |= BLT_START_BOTTOM; 680 src += (height - 1) * sc->linebytes; 681 dst += (height - 1) * sc->linebytes; 682 } 683 684 stride = (sc->linebytes << 16) | sc->linebytes; 685 size = (height << 16) | width; 686 687 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 688 chipsfb_write32(sc, CT_BLT_SRCADDR, src); 689 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 690 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 691 chipsfb_write32(sc, CT_BLT_SIZE, size); 692 chipsfb_wait_idle(sc); 693 } 694 695 static void 696 chipsfb_rectfill(struct chipsfb_softc *sc, int x, int y, int width, 697 int height, int colour) 698 { 699 uint32_t dst, cmd, stride, size; 700 701 cmd = BLT_PAT_IS_SOLID | BLT_PAT_IS_MONO | ROP_PAT; 702 703 /* we assume 8 bit for now */ 704 dst = x + y * sc->linebytes; 705 706 stride = (sc->linebytes << 16) | sc->linebytes; 707 size = (height << 16) | width; 708 709 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 710 chipsfb_write32(sc, CT_BLT_SRCADDR, dst); 711 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 712 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 713 chipsfb_write32(sc, CT_BLT_BG, colour); 714 chipsfb_write32(sc, CT_BLT_FG, colour); 715 chipsfb_write32(sc, CT_BLT_SIZE, size); 716 chipsfb_wait_idle(sc); 717 718 } 719 720 #if 0 721 static void 722 chipsfb_putchar(void *cookie, int row, int col, u_int c, long attr) 723 { 724 struct rasops_info *ri = cookie; 725 struct vcons_screen *scr = ri->ri_hw; 726 struct chipsfb_softc *sc = scr->scr_cookie; 727 728 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 729 uint8_t *data; 730 int fg, bg, uc, i; 731 int x, y, wi, he; 732 733 wi = ri->ri_font->fontwidth; 734 he = ri->ri_font->fontheight; 735 736 if (!CHAR_IN_FONT(c, ri->ri_font)) 737 return; 738 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 739 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 740 x = ri->ri_xorigin + col * wi; 741 y = ri->ri_yorigin + row * he; 742 if (c == 0x20) { 743 chipsfb_rectfill(sc, x, y, wi, he, bg); 744 } else { 745 uc = c-ri->ri_font->firstchar; 746 data = (uint8_t *)ri->ri_font->data + uc * 747 ri->ri_fontscale; 748 chipsfb_setup_mono(sc, x, y, wi, he, fg, bg); 749 for (i = 0; i < he; i++) { 750 chipsfb_feed_line(sc, 751 ri->ri_font->stride, data); 752 data += ri->ri_font->stride; 753 } 754 } 755 } 756 } 757 758 static void 759 chipsfb_setup_mono(struct chipsfb_softc *sc, int xd, int yd, int width, 760 int height, uint32_t fg, uint32_t bg) 761 { 762 763 } 764 765 static void 766 chipsfb_feed_line(struct chipsfb_softc *sc, int count, uint8_t *data) 767 { 768 769 } 770 771 #ifdef CHIPSFB_DEBUG 772 static void 773 chipsfb_showpal(struct chipsfb_softc *sc) 774 { 775 int i, x = 0; 776 777 for (i = 0; i < 16; i++) { 778 chipsfb_rectfill(sc, x, 0, 64, 64, i); 779 x += 64; 780 } 781 } 782 #endif 783 784 #if 0 785 static int 786 chipsfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 787 { 788 789 return 0; 790 } 791 #endif 792 793 #endif 794 static void 795 chipsfb_restore_palette(struct chipsfb_softc *sc) 796 { 797 int i; 798 799 for (i = 0; i < 256; i++) { 800 chipsfb_putpalreg(sc, 801 i, 802 sc->sc_cmap_red[i], 803 sc->sc_cmap_green[i], 804 sc->sc_cmap_blue[i]); 805 } 806 } 807 808 /* 809 * wsdisplay_accessops 810 */ 811 812 static int 813 chipsfb_ioctl(void *v, void *vs, u_long cmd, caddr_t data, int flag, 814 struct lwp *l) 815 { 816 struct vcons_data *vd = v; 817 struct chipsfb_softc *sc = vd->cookie; 818 struct wsdisplay_fbinfo *wdf; 819 struct vcons_screen *ms = vd->active; 820 821 switch (cmd) { 822 case WSDISPLAYIO_GTYPE: 823 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 824 return 0; 825 826 case WSDISPLAYIO_GINFO: 827 wdf = (void *)data; 828 wdf->height = ms->scr_ri.ri_height; 829 wdf->width = ms->scr_ri.ri_width; 830 wdf->depth = ms->scr_ri.ri_depth; 831 wdf->cmsize = 256; 832 return 0; 833 834 case WSDISPLAYIO_GETCMAP: 835 return chipsfb_getcmap(sc, 836 (struct wsdisplay_cmap *)data); 837 838 case WSDISPLAYIO_PUTCMAP: 839 return chipsfb_putcmap(sc, 840 (struct wsdisplay_cmap *)data); 841 842 /* PCI config read/write passthrough. */ 843 case PCI_IOC_CFGREAD: 844 case PCI_IOC_CFGWRITE: 845 return (pci_devioctl(sc->sc_pc, sc->sc_pcitag, 846 cmd, data, flag, l)); 847 848 case WSDISPLAYIO_SMODE: 849 { 850 int new_mode = *(int*)data; 851 if (new_mode != sc->sc_mode) { 852 sc->sc_mode = new_mode; 853 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 854 chipsfb_restore_palette(sc); 855 vcons_redraw_screen(ms); 856 } 857 } 858 } 859 return 0; 860 } 861 return EPASSTHROUGH; 862 } 863 864 static paddr_t 865 chipsfb_mmap(void *v, void *vs, off_t offset, int prot) 866 { 867 struct vcons_data *vd = v; 868 struct chipsfb_softc *sc = vd->cookie; 869 struct lwp *me; 870 paddr_t pa; 871 872 /* 'regular' framebuffer mmap()ing */ 873 if (offset < sc->sc_fbsize) { 874 pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot, 875 BUS_SPACE_MAP_LINEAR); 876 return pa; 877 } 878 879 /* 880 * restrict all other mappings to processes with superuser privileges 881 * or the kernel itself 882 */ 883 me = curlwp; 884 if (me != NULL) { 885 if (kauth_authorize_generic(me->l_cred, KAUTH_GENERIC_ISSUSER, 886 NULL) != 0) { 887 printf("%s: mmap() rejected.\n", sc->sc_dev.dv_xname); 888 return -1; 889 } 890 } 891 892 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 893 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 894 BUS_SPACE_MAP_LINEAR); 895 return pa; 896 } 897 898 #ifdef macppc 899 /* allow mapping of IO space */ 900 if ((offset >= 0xf2000000) && (offset < 0xf2800000)) { 901 pa = bus_space_mmap(sc->sc_iot, offset - 0xf2000000, 0, prot, 902 BUS_SPACE_MAP_LINEAR); 903 return pa; 904 } 905 #endif 906 907 #ifdef OFB_ALLOW_OTHERS 908 if (offset >= 0x80000000) { 909 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 910 BUS_SPACE_MAP_LINEAR); 911 return pa; 912 } 913 #endif 914 return -1; 915 } 916 917 static void 918 chipsfb_init_screen(void *cookie, struct vcons_screen *scr, 919 int existing, long *defattr) 920 { 921 struct chipsfb_softc *sc = cookie; 922 struct rasops_info *ri = &scr->scr_ri; 923 924 ri->ri_depth = sc->bits_per_pixel; 925 ri->ri_width = sc->width; 926 ri->ri_height = sc->height; 927 ri->ri_stride = sc->width; 928 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 929 930 ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh); 931 932 #ifdef CHIPSFB_DEBUG 933 printf("addr: %08lx\n", (ulong)ri->ri_bits); 934 #endif 935 if (existing) { 936 ri->ri_flg |= RI_CLEAR; 937 } 938 939 rasops_init(ri, sc->height/8, sc->width/8); 940 ri->ri_caps = WSSCREEN_WSCOLORS; 941 942 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 943 sc->width / ri->ri_font->fontwidth); 944 945 ri->ri_hw = scr; 946 ri->ri_ops.copyrows = chipsfb_copyrows; 947 ri->ri_ops.copycols = chipsfb_copycols; 948 ri->ri_ops.eraserows = chipsfb_eraserows; 949 ri->ri_ops.erasecols = chipsfb_erasecols; 950 ri->ri_ops.cursor = chipsfb_cursor; 951 #if 0 952 ri->ri_ops.putchar = chipsfb_putchar; 953 #endif 954 } 955 956 #if 0 957 int 958 chipsfb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 959 { 960 961 return 0; 962 } 963 #endif 964 965 static int 966 chipsfb_intr(void *arg) 967 { 968 // struct chipsfb_softc *sc = arg; 969 970 return 1; 971 } 972 973 static void 974 chipsfb_init(struct chipsfb_softc *sc) 975 { 976 977 chipsfb_wait_idle(sc); 978 979 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_IO_CONTROL, 980 ENABLE_CRTC_EXT | ENABLE_ATTR_EXT); 981 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_ADDR_MAPPING, 982 ENABLE_LINEAR); 983 984 /* setup the blitter */ 985 } 986
Indexes created Mon Sep 22 21:09:42 GMT 2025