chipsfb.c revision 1.12
1 /* $NetBSD: chipsfb.c,v 1.12 2007/08/19 15:57:24 he 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 * tested on macppc only so far 33 */ 34 35 #include <sys/cdefs.h> 36 __KERNEL_RCSID(0, "$NetBSD: chipsfb.c,v 1.12 2007/08/19 15:57:24 he Exp $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/device.h> 42 #include <sys/malloc.h> 43 #include <sys/callout.h> 44 #include <sys/lwp.h> 45 #include <sys/kauth.h> 46 47 #include <uvm/uvm_extern.h> 48 49 #include <dev/videomode/videomode.h> 50 51 #include <dev/pci/pcivar.h> 52 #include <dev/pci/pcireg.h> 53 #include <dev/pci/pcidevs.h> 54 #include <dev/pci/pciio.h> 55 #include <dev/pci/chipsfbreg.h> 56 57 #include <dev/wscons/wsdisplayvar.h> 58 #include <dev/wscons/wsconsio.h> 59 #include <dev/wsfont/wsfont.h> 60 #include <dev/rasops/rasops.h> 61 #include <dev/wscons/wsdisplay_vconsvar.h> 62 63 #include <dev/i2c/i2cvar.h> 64 65 #include "opt_wsemul.h" 66 #include "opt_chipsfb.h" 67 68 struct chipsfb_softc { 69 struct device sc_dev; 70 pci_chipset_tag_t sc_pc; 71 pcitag_t sc_pcitag; 72 73 bus_space_tag_t sc_memt; 74 bus_space_tag_t sc_iot; 75 bus_space_handle_t sc_memh; 76 77 bus_space_tag_t sc_fbt; 78 bus_space_tag_t sc_ioregt; 79 bus_space_handle_t sc_fbh; 80 bus_space_handle_t sc_ioregh; 81 bus_addr_t sc_fb, sc_ioreg; 82 bus_size_t sc_fbsize, sc_ioregsize; 83 84 void *sc_ih; 85 86 size_t memsize; 87 88 int bits_per_pixel; 89 int width, height, linebytes; 90 91 int sc_mode; 92 uint32_t sc_bg; 93 94 u_char sc_cmap_red[256]; 95 u_char sc_cmap_green[256]; 96 u_char sc_cmap_blue[256]; 97 int sc_dacw; 98 99 /* 100 * I2C stuff 101 * DDC2 clock is on GPIO1, data on GPIO0 102 */ 103 struct i2c_controller sc_i2c; 104 uint8_t sc_edid[1024]; 105 int sc_edidbytes; /* number of bytes read from the monitor */ 106 107 struct vcons_data vd; 108 }; 109 110 static struct vcons_screen chipsfb_console_screen; 111 112 extern const u_char rasops_cmap[768]; 113 114 static int chipsfb_match(struct device *, struct cfdata *, void *); 115 static void chipsfb_attach(struct device *, struct device *, void *); 116 117 CFATTACH_DECL(chipsfb, sizeof(struct chipsfb_softc), chipsfb_match, 118 chipsfb_attach, NULL, NULL); 119 120 static void chipsfb_init(struct chipsfb_softc *); 121 122 static void chipsfb_cursor(void *, int, int, int); 123 static void chipsfb_copycols(void *, int, int, int, int); 124 static void chipsfb_erasecols(void *, int, int, int, long); 125 static void chipsfb_copyrows(void *, int, int, int); 126 static void chipsfb_eraserows(void *, int, int, long); 127 128 #if 0 129 static int chipsfb_allocattr(void *, int, int, int, long *); 130 static void chipsfb_scroll(void *, void *, int); 131 static int chipsfb_load_font(void *, void *, struct wsdisplay_font *); 132 #endif 133 134 static int chipsfb_putcmap(struct chipsfb_softc *, 135 struct wsdisplay_cmap *); 136 static int chipsfb_getcmap(struct chipsfb_softc *, 137 struct wsdisplay_cmap *); 138 static int chipsfb_putpalreg(struct chipsfb_softc *, uint8_t, uint8_t, 139 uint8_t, uint8_t); 140 141 static void chipsfb_bitblt(struct chipsfb_softc *, int, int, int, int, 142 int, int, uint8_t); 143 static void chipsfb_rectfill(struct chipsfb_softc *, int, int, int, int, 144 int); 145 static void chipsfb_putchar(void *, int, int, u_int, long); 146 static void chipsfb_setup_mono(struct chipsfb_softc *, int, int, int, 147 int, uint32_t, uint32_t); 148 static void chipsfb_feed(struct chipsfb_softc *, int, uint8_t *); 149 150 #if 0 151 static void chipsfb_showpal(struct chipsfb_softc *); 152 #endif 153 static void chipsfb_restore_palette(struct chipsfb_softc *); 154 155 static void chipsfb_wait_idle(struct chipsfb_softc *); 156 157 static uint32_t chipsfb_probe_vram(struct chipsfb_softc *); 158 159 struct wsscreen_descr chipsfb_defaultscreen = { 160 "default", 161 0, 0, 162 NULL, 163 8, 16, 164 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, 165 }; 166 167 const struct wsscreen_descr *_chipsfb_scrlist[] = { 168 &chipsfb_defaultscreen, 169 /* XXX other formats, graphics screen? */ 170 }; 171 172 struct wsscreen_list chipsfb_screenlist = { 173 sizeof(_chipsfb_scrlist) / sizeof(struct wsscreen_descr *), _chipsfb_scrlist 174 }; 175 176 static int chipsfb_ioctl(void *, void *, u_long, void *, int, 177 struct lwp *); 178 static paddr_t chipsfb_mmap(void *, void *, off_t, int); 179 static void chipsfb_clearscreen(struct chipsfb_softc *); 180 static void chipsfb_init_screen(void *, struct vcons_screen *, int, 181 long *); 182 183 184 struct wsdisplay_accessops chipsfb_accessops = { 185 chipsfb_ioctl, 186 chipsfb_mmap, 187 NULL, /* load_font */ 188 NULL, /* polls */ 189 NULL, /* scroll */ 190 }; 191 192 /* 193 * Inline functions for getting access to register aperture. 194 */ 195 static inline void 196 chipsfb_write32(struct chipsfb_softc *sc, uint32_t reg, uint32_t val) 197 { 198 bus_space_write_4(sc->sc_fbt, sc->sc_fbh, reg, val); 199 } 200 201 static inline uint32_t 202 chipsfb_read32(struct chipsfb_softc *sc, uint32_t reg) 203 { 204 return bus_space_read_4(sc->sc_fbt, sc->sc_fbh, reg); 205 } 206 207 static inline void 208 chipsfb_write_vga(struct chipsfb_softc *sc, uint32_t reg, uint8_t val) 209 { 210 bus_space_write_1(sc->sc_iot, sc->sc_ioregh, reg, val); 211 } 212 213 static inline uint8_t 214 chipsfb_read_vga(struct chipsfb_softc *sc, uint32_t reg) 215 { 216 return bus_space_read_1(sc->sc_iot, sc->sc_ioregh, reg); 217 } 218 219 static inline uint8_t 220 chipsfb_read_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index) 221 { 222 223 chipsfb_write_vga(sc, reg & 0xfffe, index); 224 return chipsfb_read_vga(sc, reg | 0x0001); 225 } 226 227 static inline void 228 chipsfb_write_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index, 229 uint8_t val) 230 { 231 232 chipsfb_write_vga(sc, reg & 0xfffe, index); 233 chipsfb_write_vga(sc, reg | 0x0001, val); 234 } 235 236 static void 237 chipsfb_wait_idle(struct chipsfb_softc *sc) 238 { 239 240 #ifdef CHIPSFB_DEBUG 241 chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0); 242 #endif 243 244 /* spin until the blitter is idle */ 245 while ((chipsfb_read32(sc, CT_BLT_CONTROL) & BLT_IS_BUSY) != 0) { 246 } 247 248 #ifdef CHIPSFB_DEBUG 249 chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0xffffffff); 250 #endif 251 } 252 253 static int 254 chipsfb_match(struct device *parent, struct cfdata *match, void *aux) 255 { 256 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 257 258 if (PCI_CLASS(pa->pa_class) != PCI_CLASS_DISPLAY || 259 PCI_SUBCLASS(pa->pa_class) != PCI_SUBCLASS_DISPLAY_VGA) 260 return 0; 261 if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CHIPS) && 262 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CHIPS_65550)) 263 return 100; 264 if ((PCI_VENDOR(pa->pa_id) == PCI_VENDOR_CHIPS) && 265 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_CHIPS_65554)) 266 return 100; 267 return 0; 268 } 269 270 static void 271 chipsfb_attach(struct device *parent, struct device *self, void *aux) 272 { 273 struct chipsfb_softc *sc = (void *)self; 274 struct pci_attach_args *pa = aux; 275 char devinfo[256]; 276 struct wsemuldisplaydev_attach_args aa; 277 struct rasops_info *ri; 278 prop_dictionary_t dict; 279 pcireg_t screg; 280 ulong defattr; 281 bool console = false; 282 int width, height, i, j; 283 uint32_t bg, fg, ul; 284 285 dict = device_properties(self); 286 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 287 sc->sc_pc = pa->pa_pc; 288 sc->sc_pcitag = pa->pa_tag; 289 sc->sc_dacw = -1; 290 291 screg = pci_conf_read(sc->sc_pc, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 292 screg |= PCI_FLAGS_IO_ENABLED | PCI_FLAGS_MEM_ENABLED; 293 pci_conf_write(sc->sc_pc, sc->sc_pcitag,PCI_COMMAND_STATUS_REG,screg); 294 295 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 296 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, PCI_REVISION(pa->pa_class)); 297 #ifdef CHIPSFB_DEBUG 298 printf(prop_dictionary_externalize(dict)); 299 #endif 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 aprint_error("%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, 0x400, 0, &sc->sc_ioregh) != 0) { 314 aprint_error("%s: failed to map IO registers.\n", 315 sc->sc_dev.dv_xname); 316 } 317 318 sc->memsize = chipsfb_probe_vram(sc); 319 chipsfb_init(sc); 320 321 /* we should read these from the chip instead of depending on OF */ 322 width = height = -1; 323 324 /* detect panel size */ 325 width = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HSIZE_LSB); 326 width |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HORZ_OVERFLOW_1) 327 & 0x0f) << 8; 328 width = (width + 1) * 8; 329 height = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VSIZE_LSB); 330 height |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VERT_OVERFLOW_1) 331 & 0x0f) << 8; 332 height++; 333 aprint_verbose("Panel size: %d x %d\n", width, height); 334 335 if (!prop_dictionary_get_uint32(dict, "width", &sc->width)) 336 sc->width = width; 337 if (!prop_dictionary_get_uint32(dict, "height", &sc->height)) 338 sc->height = height; 339 if (!prop_dictionary_get_uint32(dict, "depth", &sc->bits_per_pixel)) 340 sc->bits_per_pixel = 8; 341 if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->linebytes)) 342 sc->linebytes = (sc->width * sc->bits_per_pixel) >> 3; 343 344 prop_dictionary_get_bool(dict, "is_console", &console); 345 346 #ifdef notyet 347 /* XXX this should at least be configurable via kernel config */ 348 chipsfb_set_videomode(sc, &videomode_list[16]); 349 #endif 350 351 vcons_init(&sc->vd, sc, &chipsfb_defaultscreen, &chipsfb_accessops); 352 sc->vd.init_screen = chipsfb_init_screen; 353 354 ri = &chipsfb_console_screen.scr_ri; 355 if (console) { 356 vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1, 357 &defattr); 358 chipsfb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 359 360 chipsfb_defaultscreen.textops = &ri->ri_ops; 361 chipsfb_defaultscreen.capabilities = ri->ri_caps; 362 chipsfb_defaultscreen.nrows = ri->ri_rows; 363 chipsfb_defaultscreen.ncols = ri->ri_cols; 364 wsdisplay_cnattach(&chipsfb_defaultscreen, ri, 0, 0, defattr); 365 } else { 366 /* 367 * since we're not the console we can postpone the rest 368 * until someone actually allocates a screen for us 369 */ 370 #ifdef notyet 371 chipsfb_set_videomode(sc, &videomode_list[0]); 372 #endif 373 } 374 375 rasops_unpack_attr(defattr, &fg, &bg, &ul); 376 sc->sc_bg = ri->ri_devcmap[bg]; 377 chipsfb_clearscreen(sc); 378 379 aprint_normal("%s: %d MB aperture, %d MB VRAM at 0x%08x\n", 380 sc->sc_dev.dv_xname, (u_int)(sc->sc_fbsize >> 20), 381 sc->memsize >> 20, (u_int)sc->sc_fb); 382 #ifdef CHIPSFB_DEBUG 383 aprint_debug("fb: %08lx\n", (ulong)ri->ri_bits); 384 #endif 385 386 j = 0; 387 for (i = 0; i < 256; i++) { 388 chipsfb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 389 rasops_cmap[j + 2]); 390 j += 3; 391 } 392 393 aa.console = console; 394 aa.scrdata = &chipsfb_screenlist; 395 aa.accessops = &chipsfb_accessops; 396 aa.accesscookie = &sc->vd; 397 398 config_found(self, &aa, wsemuldisplaydevprint); 399 } 400 401 static int 402 chipsfb_putpalreg(struct chipsfb_softc *sc, uint8_t index, uint8_t r, 403 uint8_t g, uint8_t b) 404 { 405 406 sc->sc_cmap_red[index] = r; 407 sc->sc_cmap_green[index] = g; 408 sc->sc_cmap_blue[index] = b; 409 410 chipsfb_write_vga(sc, CT_DACMASK, 0xff); 411 chipsfb_write_vga(sc, CT_WRITEINDEX, index); 412 chipsfb_write_vga(sc, CT_DACDATA, r); 413 chipsfb_write_vga(sc, CT_DACDATA, g); 414 chipsfb_write_vga(sc, CT_DACDATA, b); 415 416 return 0; 417 } 418 419 static int 420 chipsfb_putcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 421 { 422 u_char *r, *g, *b; 423 u_int index = cm->index; 424 u_int count = cm->count; 425 int i, error; 426 u_char rbuf[256], gbuf[256], bbuf[256]; 427 428 #ifdef CHIPSFB_DEBUG 429 aprint_debug("putcmap: %d %d\n",index, count); 430 #endif 431 if (cm->index >= 256 || cm->count > 256 || 432 (cm->index + cm->count) > 256) 433 return EINVAL; 434 error = copyin(cm->red, &rbuf[index], count); 435 if (error) 436 return error; 437 error = copyin(cm->green, &gbuf[index], count); 438 if (error) 439 return error; 440 error = copyin(cm->blue, &bbuf[index], count); 441 if (error) 442 return error; 443 444 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 445 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 446 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 447 448 r = &sc->sc_cmap_red[index]; 449 g = &sc->sc_cmap_green[index]; 450 b = &sc->sc_cmap_blue[index]; 451 452 for (i = 0; i < count; i++) { 453 chipsfb_putpalreg(sc, index, *r, *g, *b); 454 index++; 455 r++, g++, b++; 456 } 457 return 0; 458 } 459 460 static int 461 chipsfb_getcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 462 { 463 u_int index = cm->index; 464 u_int count = cm->count; 465 int error; 466 467 if (index >= 255 || count > 256 || index + count > 256) 468 return EINVAL; 469 470 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 471 if (error) 472 return error; 473 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 474 if (error) 475 return error; 476 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 477 if (error) 478 return error; 479 480 return 0; 481 } 482 483 static void 484 chipsfb_clearscreen(struct chipsfb_softc *sc) 485 { 486 chipsfb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 487 } 488 489 /* 490 * wsdisplay_emulops 491 */ 492 493 static void 494 chipsfb_cursor(void *cookie, int on, int row, int col) 495 { 496 struct rasops_info *ri = cookie; 497 struct vcons_screen *scr = ri->ri_hw; 498 struct chipsfb_softc *sc = scr->scr_cookie; 499 int x, y, wi, he; 500 501 wi = ri->ri_font->fontwidth; 502 he = ri->ri_font->fontheight; 503 504 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 505 x = ri->ri_ccol * wi + ri->ri_xorigin; 506 y = ri->ri_crow * he + ri->ri_yorigin; 507 if (ri->ri_flg & RI_CURSOR) { 508 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 509 ri->ri_flg &= ~RI_CURSOR; 510 } 511 ri->ri_crow = row; 512 ri->ri_ccol = col; 513 if (on) { 514 x = ri->ri_ccol * wi + ri->ri_xorigin; 515 y = ri->ri_crow * he + ri->ri_yorigin; 516 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 517 ri->ri_flg |= RI_CURSOR; 518 } 519 } else { 520 ri->ri_flg &= ~RI_CURSOR; 521 ri->ri_crow = row; 522 ri->ri_ccol = col; 523 } 524 } 525 526 #if 0 527 int 528 chipsfb_mapchar(void *cookie, int uni, u_int *index) 529 { 530 return 0; 531 } 532 #endif 533 534 static void 535 chipsfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 536 { 537 struct rasops_info *ri = cookie; 538 struct vcons_screen *scr = ri->ri_hw; 539 struct chipsfb_softc *sc = scr->scr_cookie; 540 int32_t xs, xd, y, width, height; 541 542 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 543 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 544 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 545 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 546 width = ri->ri_font->fontwidth * ncols; 547 height = ri->ri_font->fontheight; 548 chipsfb_bitblt(sc, xs, y, xd, y, width, height, ROP_COPY); 549 } 550 } 551 552 static void 553 chipsfb_erasecols(void *cookie, int row, int startcol, int ncols, 554 long fillattr) 555 { 556 struct rasops_info *ri = cookie; 557 struct vcons_screen *scr = ri->ri_hw; 558 struct chipsfb_softc *sc = scr->scr_cookie; 559 int32_t x, y, width, height, fg, bg, ul; 560 561 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 562 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 563 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 564 width = ri->ri_font->fontwidth * ncols; 565 height = ri->ri_font->fontheight; 566 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 567 568 chipsfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 569 } 570 } 571 572 static void 573 chipsfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 574 { 575 struct rasops_info *ri = cookie; 576 struct vcons_screen *scr = ri->ri_hw; 577 struct chipsfb_softc *sc = scr->scr_cookie; 578 int32_t x, ys, yd, width, height; 579 580 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 581 x = ri->ri_xorigin; 582 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 583 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 584 width = ri->ri_emuwidth; 585 height = ri->ri_font->fontheight * nrows; 586 chipsfb_bitblt(sc, x, ys, x, yd, width, height, ROP_COPY); 587 } 588 } 589 590 static void 591 chipsfb_eraserows(void *cookie, int row, int nrows, long fillattr) 592 { 593 struct rasops_info *ri = cookie; 594 struct vcons_screen *scr = ri->ri_hw; 595 struct chipsfb_softc *sc = scr->scr_cookie; 596 int32_t x, y, width, height, fg, bg, ul; 597 598 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 599 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 600 if ((row == 0) && (nrows == ri->ri_rows)) { 601 /* clear the whole screen */ 602 chipsfb_rectfill(sc, 0, 0, ri->ri_width, 603 ri->ri_height, ri->ri_devcmap[bg]); 604 } else { 605 x = ri->ri_xorigin; 606 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 607 width = ri->ri_emuwidth; 608 height = ri->ri_font->fontheight * nrows; 609 chipsfb_rectfill(sc, x, y, width, height, 610 ri->ri_devcmap[bg]); 611 } 612 } 613 } 614 615 static void 616 chipsfb_bitblt(struct chipsfb_softc *sc, int xs, int ys, int xd, int yd, 617 int width, int height, uint8_t rop) 618 { 619 uint32_t src, dst, cmd = rop, stride, size; 620 621 cmd |= BLT_PAT_IS_SOLID; 622 623 /* we assume 8 bit for now */ 624 src = xs + ys * sc->linebytes; 625 dst = xd + yd * sc->linebytes; 626 627 if (xs < xd) { 628 /* right-to-left operation */ 629 cmd |= BLT_START_RIGHT; 630 src += width - 1; 631 dst += width - 1; 632 } 633 634 if (ys < yd) { 635 /* bottom-to-top operation */ 636 cmd |= BLT_START_BOTTOM; 637 src += (height - 1) * sc->linebytes; 638 dst += (height - 1) * sc->linebytes; 639 } 640 641 stride = (sc->linebytes << 16) | sc->linebytes; 642 size = (height << 16) | width; 643 644 chipsfb_wait_idle(sc); 645 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 646 chipsfb_write32(sc, CT_BLT_SRCADDR, src); 647 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 648 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 649 chipsfb_write32(sc, CT_BLT_SIZE, size); 650 #ifdef CHIPSFB_WAIT 651 chipsfb_wait_idle(sc); 652 #endif 653 } 654 655 static void 656 chipsfb_rectfill(struct chipsfb_softc *sc, int x, int y, int width, 657 int height, int colour) 658 { 659 uint32_t dst, cmd, stride, size; 660 661 cmd = BLT_PAT_IS_SOLID | BLT_PAT_IS_MONO | ROP_PAT; 662 663 /* we assume 8 bit for now */ 664 dst = x + y * sc->linebytes; 665 666 stride = (sc->linebytes << 16) | sc->linebytes; 667 size = (height << 16) | width; 668 669 chipsfb_wait_idle(sc); 670 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 671 chipsfb_write32(sc, CT_BLT_SRCADDR, dst); 672 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 673 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 674 chipsfb_write32(sc, CT_BLT_BG, colour); 675 chipsfb_write32(sc, CT_BLT_FG, colour); 676 chipsfb_write32(sc, CT_BLT_SIZE, size); 677 #ifdef CHIPSFB_WAIT 678 chipsfb_wait_idle(sc); 679 #endif 680 } 681 682 static void 683 chipsfb_putchar(void *cookie, int row, int col, u_int c, long attr) 684 { 685 struct rasops_info *ri = cookie; 686 struct vcons_screen *scr = ri->ri_hw; 687 struct chipsfb_softc *sc = scr->scr_cookie; 688 689 if (__predict_false((unsigned int)row > ri->ri_rows || 690 (unsigned int)col > ri->ri_cols)) 691 return; 692 693 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 694 uint8_t *data; 695 int fg, bg, uc; 696 int x, y, wi, he; 697 698 wi = ri->ri_font->fontwidth; 699 he = ri->ri_font->fontheight; 700 701 if (!CHAR_IN_FONT(c, ri->ri_font)) 702 return; 703 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 704 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 705 x = ri->ri_xorigin + col * wi; 706 y = ri->ri_yorigin + row * he; 707 if (c == 0x20) { 708 chipsfb_rectfill(sc, x, y, wi, he, bg); 709 } else { 710 uc = c-ri->ri_font->firstchar; 711 data = (uint8_t *)ri->ri_font->data + uc * 712 ri->ri_fontscale; 713 chipsfb_setup_mono(sc, x, y, wi, he, fg, bg); 714 chipsfb_feed(sc, ri->ri_font->stride * he, data); 715 } 716 } 717 } 718 719 static void 720 chipsfb_setup_mono(struct chipsfb_softc *sc, int xd, int yd, int width, 721 int height, uint32_t fg, uint32_t bg) 722 { 723 uint32_t dst, cmd, stride, size; 724 725 cmd = BLT_PAT_IS_SOLID | BLT_SRC_IS_CPU | BLT_SRC_IS_MONO | ROP_COPY; 726 727 /* we assume 8 bit for now */ 728 dst = xd + yd * sc->linebytes; 729 730 stride = (sc->linebytes << 16); 731 size = (height << 16) | width; 732 733 chipsfb_wait_idle(sc); 734 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 735 chipsfb_write32(sc, CT_BLT_EXPCTL, MONO_SRC_ALIGN_BYTE); 736 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 737 chipsfb_write32(sc, CT_BLT_SRCADDR, 0); 738 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 739 chipsfb_write32(sc, CT_BLT_BG, bg); 740 chipsfb_write32(sc, CT_BLT_FG, fg); 741 chipsfb_write32(sc, CT_BLT_SIZE, size); 742 } 743 744 static void 745 chipsfb_feed(struct chipsfb_softc *sc, int count, uint8_t *data) 746 { 747 int i; 748 uint32_t latch = 0, bork; 749 int shift = 0; 750 751 for (i = 0; i < count; i++) { 752 bork = data[i]; 753 latch |= (bork << shift); 754 if (shift == 24) { 755 chipsfb_write32(sc, CT_OFF_DATA, latch); 756 latch = 0; 757 shift = 0; 758 } else 759 shift += 8; 760 } 761 762 if (shift != 0) { 763 chipsfb_write32(sc, CT_OFF_DATA, latch); 764 } 765 766 /* apparently the chip wants 64bit-aligned data or it won't go idle */ 767 if ((count + 3) & 0x04) { 768 chipsfb_write32(sc, CT_OFF_DATA, 0); 769 } 770 #ifdef CHIPSFB_WAIT 771 chipsfb_wait_idle(sc); 772 #endif 773 } 774 775 #if 0 776 static void 777 chipsfb_showpal(struct chipsfb_softc *sc) 778 { 779 int i, x = 0; 780 781 for (i = 0; i < 16; i++) { 782 chipsfb_rectfill(sc, x, 0, 64, 64, i); 783 x += 64; 784 } 785 } 786 #endif 787 788 #if 0 789 static int 790 chipsfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 791 { 792 793 return 0; 794 } 795 #endif 796 797 static void 798 chipsfb_restore_palette(struct chipsfb_softc *sc) 799 { 800 int i; 801 802 for (i = 0; i < 256; i++) { 803 chipsfb_putpalreg(sc, 804 i, 805 sc->sc_cmap_red[i], 806 sc->sc_cmap_green[i], 807 sc->sc_cmap_blue[i]); 808 } 809 } 810 811 /* 812 * wsdisplay_accessops 813 */ 814 815 static int 816 chipsfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 817 struct lwp *l) 818 { 819 struct vcons_data *vd = v; 820 struct chipsfb_softc *sc = vd->cookie; 821 struct wsdisplay_fbinfo *wdf; 822 struct vcons_screen *ms = vd->active; 823 824 switch (cmd) { 825 case WSDISPLAYIO_GTYPE: 826 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 827 return 0; 828 829 case WSDISPLAYIO_GINFO: 830 wdf = (void *)data; 831 wdf->height = ms->scr_ri.ri_height; 832 wdf->width = ms->scr_ri.ri_width; 833 wdf->depth = ms->scr_ri.ri_depth; 834 wdf->cmsize = 256; 835 return 0; 836 837 case WSDISPLAYIO_GETCMAP: 838 return chipsfb_getcmap(sc, 839 (struct wsdisplay_cmap *)data); 840 841 case WSDISPLAYIO_PUTCMAP: 842 return chipsfb_putcmap(sc, 843 (struct wsdisplay_cmap *)data); 844 845 /* PCI config read/write passthrough. */ 846 case PCI_IOC_CFGREAD: 847 case PCI_IOC_CFGWRITE: 848 return (pci_devioctl(sc->sc_pc, sc->sc_pcitag, 849 cmd, data, flag, l)); 850 851 case WSDISPLAYIO_SMODE: 852 { 853 int new_mode = *(int*)data; 854 if (new_mode != sc->sc_mode) { 855 sc->sc_mode = new_mode; 856 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 857 chipsfb_restore_palette(sc); 858 vcons_redraw_screen(ms); 859 } 860 } 861 } 862 return 0; 863 } 864 return EPASSTHROUGH; 865 } 866 867 static paddr_t 868 chipsfb_mmap(void *v, void *vs, off_t offset, int prot) 869 { 870 struct vcons_data *vd = v; 871 struct chipsfb_softc *sc = vd->cookie; 872 struct lwp *me; 873 paddr_t pa; 874 875 /* 'regular' framebuffer mmap()ing */ 876 if (offset < sc->memsize) { 877 pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot, 878 BUS_SPACE_MAP_LINEAR); 879 return pa; 880 } 881 882 /* 883 * restrict all other mappings to processes with superuser privileges 884 * or the kernel itself 885 */ 886 me = curlwp; 887 if (me != NULL) { 888 if (kauth_authorize_generic(me->l_cred, KAUTH_GENERIC_ISSUSER, 889 NULL) != 0) { 890 aprint_normal("%s: mmap() rejected.\n", sc->sc_dev.dv_xname); 891 return -1; 892 } 893 } 894 895 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 896 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 897 BUS_SPACE_MAP_LINEAR); 898 return pa; 899 } 900 901 #ifdef macppc 902 /* allow mapping of IO space */ 903 if ((offset >= 0xf2000000) && (offset < 0xf2800000)) { 904 pa = bus_space_mmap(sc->sc_iot, offset - 0xf2000000, 0, prot, 905 BUS_SPACE_MAP_LINEAR); 906 return pa; 907 } 908 #endif 909 910 #ifdef OFB_ALLOW_OTHERS 911 if (offset >= 0x80000000) { 912 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 913 BUS_SPACE_MAP_LINEAR); 914 return pa; 915 } 916 #endif 917 return -1; 918 } 919 920 static void 921 chipsfb_init_screen(void *cookie, struct vcons_screen *scr, 922 int existing, long *defattr) 923 { 924 struct chipsfb_softc *sc = cookie; 925 struct rasops_info *ri = &scr->scr_ri; 926 927 ri->ri_depth = sc->bits_per_pixel; 928 ri->ri_width = sc->width; 929 ri->ri_height = sc->height; 930 ri->ri_stride = sc->width; 931 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 932 933 ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh); 934 935 #ifdef CHIPSFB_DEBUG 936 aprint_debug("addr: %08lx\n", (ulong)ri->ri_bits); 937 #endif 938 if (existing) { 939 ri->ri_flg |= RI_CLEAR; 940 } 941 942 rasops_init(ri, sc->height/8, sc->width/8); 943 ri->ri_caps = WSSCREEN_WSCOLORS; 944 945 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 946 sc->width / ri->ri_font->fontwidth); 947 948 ri->ri_hw = scr; 949 ri->ri_ops.copyrows = chipsfb_copyrows; 950 ri->ri_ops.copycols = chipsfb_copycols; 951 ri->ri_ops.eraserows = chipsfb_eraserows; 952 ri->ri_ops.erasecols = chipsfb_erasecols; 953 ri->ri_ops.cursor = chipsfb_cursor; 954 ri->ri_ops.putchar = chipsfb_putchar; 955 } 956 957 #if 0 958 int 959 chipsfb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 960 { 961 962 return 0; 963 } 964 #endif 965 966 static void 967 chipsfb_init(struct chipsfb_softc *sc) 968 { 969 970 chipsfb_wait_idle(sc); 971 972 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_IO_CONTROL, 973 ENABLE_CRTC_EXT | ENABLE_ATTR_EXT); 974 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_ADDR_MAPPING, 975 ENABLE_LINEAR); 976 977 /* setup the blitter */ 978 } 979 980 static uint32_t 981 chipsfb_probe_vram(struct chipsfb_softc *sc) 982 { 983 uint32_t ofs = 0x00080000; /* 512kB */ 984 985 /* 986 * advance in 0.5MB steps, see if we can read back what we wrote and 987 * if what we wrote to 0 is left untouched. Max. fb size is 4MB so 988 * we voluntarily stop there. 989 */ 990 chipsfb_write32(sc, 0, 0xf0f0f0f0); 991 chipsfb_write32(sc, ofs, 0x0f0f0f0f); 992 while ((chipsfb_read32(sc, 0) == 0xf0f0f0f0) && 993 (chipsfb_read32(sc, ofs) == 0x0f0f0f0f) && 994 (ofs < 0x00400000)) { 995 996 ofs += 0x00080000; 997 chipsfb_write32(sc, ofs, 0x0f0f0f0f); 998 } 999 1000 return ofs; 1001 } 1002
Indexes created Thu Sep 25 06:09:39 GMT 2025