chipsfb.c revision 1.14
1 /* $NetBSD: chipsfb.c,v 1.14 2008/04/10 19:13:36 cegger 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 1.14 2008/04/10 19:13:36 cegger 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_dev(&sc->sc_dev, "failed to map the frame buffer.\n"); 309 } 310 311 /* IO-mapped registers */ 312 if (bus_space_map(sc->sc_iot, 0x0, 0x400, 0, &sc->sc_ioregh) != 0) { 313 aprint_error_dev(&sc->sc_dev, "failed to map IO registers.\n"); 314 } 315 316 sc->memsize = chipsfb_probe_vram(sc); 317 chipsfb_init(sc); 318 319 /* we should read these from the chip instead of depending on OF */ 320 width = height = -1; 321 322 /* detect panel size */ 323 width = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HSIZE_LSB); 324 width |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HORZ_OVERFLOW_1) 325 & 0x0f) << 8; 326 width = (width + 1) * 8; 327 height = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VSIZE_LSB); 328 height |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VERT_OVERFLOW_1) 329 & 0x0f) << 8; 330 height++; 331 aprint_verbose("Panel size: %d x %d\n", width, height); 332 333 if (!prop_dictionary_get_uint32(dict, "width", &sc->width)) 334 sc->width = width; 335 if (!prop_dictionary_get_uint32(dict, "height", &sc->height)) 336 sc->height = height; 337 if (!prop_dictionary_get_uint32(dict, "depth", &sc->bits_per_pixel)) 338 sc->bits_per_pixel = 8; 339 if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->linebytes)) 340 sc->linebytes = (sc->width * sc->bits_per_pixel) >> 3; 341 342 prop_dictionary_get_bool(dict, "is_console", &console); 343 344 #ifdef notyet 345 /* XXX this should at least be configurable via kernel config */ 346 chipsfb_set_videomode(sc, &videomode_list[16]); 347 #endif 348 349 vcons_init(&sc->vd, sc, &chipsfb_defaultscreen, &chipsfb_accessops); 350 sc->vd.init_screen = chipsfb_init_screen; 351 352 ri = &chipsfb_console_screen.scr_ri; 353 if (console) { 354 vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1, 355 &defattr); 356 chipsfb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 357 358 chipsfb_defaultscreen.textops = &ri->ri_ops; 359 chipsfb_defaultscreen.capabilities = ri->ri_caps; 360 chipsfb_defaultscreen.nrows = ri->ri_rows; 361 chipsfb_defaultscreen.ncols = ri->ri_cols; 362 wsdisplay_cnattach(&chipsfb_defaultscreen, ri, 0, 0, defattr); 363 } else { 364 /* 365 * since we're not the console we can postpone the rest 366 * until someone actually allocates a screen for us 367 */ 368 #ifdef notyet 369 chipsfb_set_videomode(sc, &videomode_list[0]); 370 #endif 371 } 372 373 rasops_unpack_attr(defattr, &fg, &bg, &ul); 374 sc->sc_bg = ri->ri_devcmap[bg]; 375 chipsfb_clearscreen(sc); 376 377 aprint_normal_dev(&sc->sc_dev, "%d MB aperture, %d MB VRAM at 0x%08x\n", 378 (u_int)(sc->sc_fbsize >> 20), 379 sc->memsize >> 20, (u_int)sc->sc_fb); 380 #ifdef CHIPSFB_DEBUG 381 aprint_debug("fb: %08lx\n", (ulong)ri->ri_bits); 382 #endif 383 384 j = 0; 385 for (i = 0; i < 256; i++) { 386 chipsfb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 387 rasops_cmap[j + 2]); 388 j += 3; 389 } 390 391 aa.console = console; 392 aa.scrdata = &chipsfb_screenlist; 393 aa.accessops = &chipsfb_accessops; 394 aa.accesscookie = &sc->vd; 395 396 config_found(self, &aa, wsemuldisplaydevprint); 397 } 398 399 static int 400 chipsfb_putpalreg(struct chipsfb_softc *sc, uint8_t index, uint8_t r, 401 uint8_t g, uint8_t b) 402 { 403 404 sc->sc_cmap_red[index] = r; 405 sc->sc_cmap_green[index] = g; 406 sc->sc_cmap_blue[index] = b; 407 408 chipsfb_write_vga(sc, CT_DACMASK, 0xff); 409 chipsfb_write_vga(sc, CT_WRITEINDEX, index); 410 chipsfb_write_vga(sc, CT_DACDATA, r); 411 chipsfb_write_vga(sc, CT_DACDATA, g); 412 chipsfb_write_vga(sc, CT_DACDATA, b); 413 414 return 0; 415 } 416 417 static int 418 chipsfb_putcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 419 { 420 u_char *r, *g, *b; 421 u_int index = cm->index; 422 u_int count = cm->count; 423 int i, error; 424 u_char rbuf[256], gbuf[256], bbuf[256]; 425 426 #ifdef CHIPSFB_DEBUG 427 aprint_debug("putcmap: %d %d\n",index, count); 428 #endif 429 if (cm->index >= 256 || cm->count > 256 || 430 (cm->index + cm->count) > 256) 431 return EINVAL; 432 error = copyin(cm->red, &rbuf[index], count); 433 if (error) 434 return error; 435 error = copyin(cm->green, &gbuf[index], count); 436 if (error) 437 return error; 438 error = copyin(cm->blue, &bbuf[index], count); 439 if (error) 440 return error; 441 442 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 443 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 444 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 445 446 r = &sc->sc_cmap_red[index]; 447 g = &sc->sc_cmap_green[index]; 448 b = &sc->sc_cmap_blue[index]; 449 450 for (i = 0; i < count; i++) { 451 chipsfb_putpalreg(sc, index, *r, *g, *b); 452 index++; 453 r++, g++, b++; 454 } 455 return 0; 456 } 457 458 static int 459 chipsfb_getcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 460 { 461 u_int index = cm->index; 462 u_int count = cm->count; 463 int error; 464 465 if (index >= 255 || count > 256 || index + count > 256) 466 return EINVAL; 467 468 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 469 if (error) 470 return error; 471 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 472 if (error) 473 return error; 474 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 475 if (error) 476 return error; 477 478 return 0; 479 } 480 481 static void 482 chipsfb_clearscreen(struct chipsfb_softc *sc) 483 { 484 chipsfb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 485 } 486 487 /* 488 * wsdisplay_emulops 489 */ 490 491 static void 492 chipsfb_cursor(void *cookie, int on, int row, int col) 493 { 494 struct rasops_info *ri = cookie; 495 struct vcons_screen *scr = ri->ri_hw; 496 struct chipsfb_softc *sc = scr->scr_cookie; 497 int x, y, wi, he; 498 499 wi = ri->ri_font->fontwidth; 500 he = ri->ri_font->fontheight; 501 502 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 503 x = ri->ri_ccol * wi + ri->ri_xorigin; 504 y = ri->ri_crow * he + ri->ri_yorigin; 505 if (ri->ri_flg & RI_CURSOR) { 506 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 507 ri->ri_flg &= ~RI_CURSOR; 508 } 509 ri->ri_crow = row; 510 ri->ri_ccol = col; 511 if (on) { 512 x = ri->ri_ccol * wi + ri->ri_xorigin; 513 y = ri->ri_crow * he + ri->ri_yorigin; 514 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 515 ri->ri_flg |= RI_CURSOR; 516 } 517 } else { 518 ri->ri_flg &= ~RI_CURSOR; 519 ri->ri_crow = row; 520 ri->ri_ccol = col; 521 } 522 } 523 524 #if 0 525 int 526 chipsfb_mapchar(void *cookie, int uni, u_int *index) 527 { 528 return 0; 529 } 530 #endif 531 532 static void 533 chipsfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 534 { 535 struct rasops_info *ri = cookie; 536 struct vcons_screen *scr = ri->ri_hw; 537 struct chipsfb_softc *sc = scr->scr_cookie; 538 int32_t xs, xd, y, width, height; 539 540 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 541 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 542 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 543 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 544 width = ri->ri_font->fontwidth * ncols; 545 height = ri->ri_font->fontheight; 546 chipsfb_bitblt(sc, xs, y, xd, y, width, height, ROP_COPY); 547 } 548 } 549 550 static void 551 chipsfb_erasecols(void *cookie, int row, int startcol, int ncols, 552 long fillattr) 553 { 554 struct rasops_info *ri = cookie; 555 struct vcons_screen *scr = ri->ri_hw; 556 struct chipsfb_softc *sc = scr->scr_cookie; 557 int32_t x, y, width, height, fg, bg, ul; 558 559 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 560 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 561 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 562 width = ri->ri_font->fontwidth * ncols; 563 height = ri->ri_font->fontheight; 564 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 565 566 chipsfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 567 } 568 } 569 570 static void 571 chipsfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 572 { 573 struct rasops_info *ri = cookie; 574 struct vcons_screen *scr = ri->ri_hw; 575 struct chipsfb_softc *sc = scr->scr_cookie; 576 int32_t x, ys, yd, width, height; 577 578 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 579 x = ri->ri_xorigin; 580 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 581 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 582 width = ri->ri_emuwidth; 583 height = ri->ri_font->fontheight * nrows; 584 chipsfb_bitblt(sc, x, ys, x, yd, width, height, ROP_COPY); 585 } 586 } 587 588 static void 589 chipsfb_eraserows(void *cookie, int row, int nrows, long fillattr) 590 { 591 struct rasops_info *ri = cookie; 592 struct vcons_screen *scr = ri->ri_hw; 593 struct chipsfb_softc *sc = scr->scr_cookie; 594 int32_t x, y, width, height, fg, bg, ul; 595 596 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 597 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 598 if ((row == 0) && (nrows == ri->ri_rows)) { 599 /* clear the whole screen */ 600 chipsfb_rectfill(sc, 0, 0, ri->ri_width, 601 ri->ri_height, ri->ri_devcmap[bg]); 602 } else { 603 x = ri->ri_xorigin; 604 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 605 width = ri->ri_emuwidth; 606 height = ri->ri_font->fontheight * nrows; 607 chipsfb_rectfill(sc, x, y, width, height, 608 ri->ri_devcmap[bg]); 609 } 610 } 611 } 612 613 static void 614 chipsfb_bitblt(struct chipsfb_softc *sc, int xs, int ys, int xd, int yd, 615 int width, int height, uint8_t rop) 616 { 617 uint32_t src, dst, cmd = rop, stride, size; 618 619 cmd |= BLT_PAT_IS_SOLID; 620 621 /* we assume 8 bit for now */ 622 src = xs + ys * sc->linebytes; 623 dst = xd + yd * sc->linebytes; 624 625 if (xs < xd) { 626 /* right-to-left operation */ 627 cmd |= BLT_START_RIGHT; 628 src += width - 1; 629 dst += width - 1; 630 } 631 632 if (ys < yd) { 633 /* bottom-to-top operation */ 634 cmd |= BLT_START_BOTTOM; 635 src += (height - 1) * sc->linebytes; 636 dst += (height - 1) * sc->linebytes; 637 } 638 639 stride = (sc->linebytes << 16) | sc->linebytes; 640 size = (height << 16) | width; 641 642 chipsfb_wait_idle(sc); 643 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 644 chipsfb_write32(sc, CT_BLT_SRCADDR, src); 645 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 646 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 647 chipsfb_write32(sc, CT_BLT_SIZE, size); 648 #ifdef CHIPSFB_WAIT 649 chipsfb_wait_idle(sc); 650 #endif 651 } 652 653 static void 654 chipsfb_rectfill(struct chipsfb_softc *sc, int x, int y, int width, 655 int height, int colour) 656 { 657 uint32_t dst, cmd, stride, size; 658 659 cmd = BLT_PAT_IS_SOLID | BLT_PAT_IS_MONO | ROP_PAT; 660 661 /* we assume 8 bit for now */ 662 dst = x + y * sc->linebytes; 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, dst); 670 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 671 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 672 chipsfb_write32(sc, CT_BLT_BG, colour); 673 chipsfb_write32(sc, CT_BLT_FG, colour); 674 chipsfb_write32(sc, CT_BLT_SIZE, size); 675 #ifdef CHIPSFB_WAIT 676 chipsfb_wait_idle(sc); 677 #endif 678 } 679 680 static void 681 chipsfb_putchar(void *cookie, int row, int col, u_int c, long attr) 682 { 683 struct rasops_info *ri = cookie; 684 struct vcons_screen *scr = ri->ri_hw; 685 struct chipsfb_softc *sc = scr->scr_cookie; 686 687 if (__predict_false((unsigned int)row > ri->ri_rows || 688 (unsigned int)col > ri->ri_cols)) 689 return; 690 691 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 692 uint8_t *data; 693 int fg, bg, uc; 694 int x, y, wi, he; 695 696 wi = ri->ri_font->fontwidth; 697 he = ri->ri_font->fontheight; 698 699 if (!CHAR_IN_FONT(c, ri->ri_font)) 700 return; 701 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 702 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 703 x = ri->ri_xorigin + col * wi; 704 y = ri->ri_yorigin + row * he; 705 if (c == 0x20) { 706 chipsfb_rectfill(sc, x, y, wi, he, bg); 707 } else { 708 uc = c-ri->ri_font->firstchar; 709 data = (uint8_t *)ri->ri_font->data + uc * 710 ri->ri_fontscale; 711 chipsfb_setup_mono(sc, x, y, wi, he, fg, bg); 712 chipsfb_feed(sc, ri->ri_font->stride * he, data); 713 } 714 } 715 } 716 717 static void 718 chipsfb_setup_mono(struct chipsfb_softc *sc, int xd, int yd, int width, 719 int height, uint32_t fg, uint32_t bg) 720 { 721 uint32_t dst, cmd, stride, size; 722 723 cmd = BLT_PAT_IS_SOLID | BLT_SRC_IS_CPU | BLT_SRC_IS_MONO | ROP_COPY; 724 725 /* we assume 8 bit for now */ 726 dst = xd + yd * sc->linebytes; 727 728 stride = (sc->linebytes << 16); 729 size = (height << 16) | width; 730 731 chipsfb_wait_idle(sc); 732 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 733 chipsfb_write32(sc, CT_BLT_EXPCTL, MONO_SRC_ALIGN_BYTE); 734 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 735 chipsfb_write32(sc, CT_BLT_SRCADDR, 0); 736 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 737 chipsfb_write32(sc, CT_BLT_BG, bg); 738 chipsfb_write32(sc, CT_BLT_FG, fg); 739 chipsfb_write32(sc, CT_BLT_SIZE, size); 740 } 741 742 static void 743 chipsfb_feed(struct chipsfb_softc *sc, int count, uint8_t *data) 744 { 745 int i; 746 uint32_t latch = 0, bork; 747 int shift = 0; 748 749 for (i = 0; i < count; i++) { 750 bork = data[i]; 751 latch |= (bork << shift); 752 if (shift == 24) { 753 chipsfb_write32(sc, CT_OFF_DATA, latch); 754 latch = 0; 755 shift = 0; 756 } else 757 shift += 8; 758 } 759 760 if (shift != 0) { 761 chipsfb_write32(sc, CT_OFF_DATA, latch); 762 } 763 764 /* apparently the chip wants 64bit-aligned data or it won't go idle */ 765 if ((count + 3) & 0x04) { 766 chipsfb_write32(sc, CT_OFF_DATA, 0); 767 } 768 #ifdef CHIPSFB_WAIT 769 chipsfb_wait_idle(sc); 770 #endif 771 } 772 773 #if 0 774 static void 775 chipsfb_showpal(struct chipsfb_softc *sc) 776 { 777 int i, x = 0; 778 779 for (i = 0; i < 16; i++) { 780 chipsfb_rectfill(sc, x, 0, 64, 64, i); 781 x += 64; 782 } 783 } 784 #endif 785 786 #if 0 787 static int 788 chipsfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 789 { 790 791 return 0; 792 } 793 #endif 794 795 static void 796 chipsfb_restore_palette(struct chipsfb_softc *sc) 797 { 798 int i; 799 800 for (i = 0; i < 256; i++) { 801 chipsfb_putpalreg(sc, 802 i, 803 sc->sc_cmap_red[i], 804 sc->sc_cmap_green[i], 805 sc->sc_cmap_blue[i]); 806 } 807 } 808 809 /* 810 * wsdisplay_accessops 811 */ 812 813 static int 814 chipsfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 815 struct lwp *l) 816 { 817 struct vcons_data *vd = v; 818 struct chipsfb_softc *sc = vd->cookie; 819 struct wsdisplay_fbinfo *wdf; 820 struct vcons_screen *ms = vd->active; 821 822 switch (cmd) { 823 case WSDISPLAYIO_GTYPE: 824 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 825 return 0; 826 827 case WSDISPLAYIO_GINFO: 828 wdf = (void *)data; 829 wdf->height = ms->scr_ri.ri_height; 830 wdf->width = ms->scr_ri.ri_width; 831 wdf->depth = ms->scr_ri.ri_depth; 832 wdf->cmsize = 256; 833 return 0; 834 835 case WSDISPLAYIO_GETCMAP: 836 return chipsfb_getcmap(sc, 837 (struct wsdisplay_cmap *)data); 838 839 case WSDISPLAYIO_PUTCMAP: 840 return chipsfb_putcmap(sc, 841 (struct wsdisplay_cmap *)data); 842 843 /* PCI config read/write passthrough. */ 844 case PCI_IOC_CFGREAD: 845 case PCI_IOC_CFGWRITE: 846 return (pci_devioctl(sc->sc_pc, sc->sc_pcitag, 847 cmd, data, flag, l)); 848 849 case WSDISPLAYIO_SMODE: 850 { 851 int new_mode = *(int*)data; 852 if (new_mode != sc->sc_mode) { 853 sc->sc_mode = new_mode; 854 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 855 chipsfb_restore_palette(sc); 856 vcons_redraw_screen(ms); 857 } 858 } 859 } 860 return 0; 861 } 862 return EPASSTHROUGH; 863 } 864 865 static paddr_t 866 chipsfb_mmap(void *v, void *vs, off_t offset, int prot) 867 { 868 struct vcons_data *vd = v; 869 struct chipsfb_softc *sc = vd->cookie; 870 struct lwp *me; 871 paddr_t pa; 872 873 /* 'regular' framebuffer mmap()ing */ 874 if (offset < sc->memsize) { 875 pa = bus_space_mmap(sc->sc_fbt, offset, 0, prot, 876 BUS_SPACE_MAP_LINEAR); 877 return pa; 878 } 879 880 /* 881 * restrict all other mappings to processes with superuser privileges 882 * or the kernel itself 883 */ 884 me = curlwp; 885 if (me != NULL) { 886 if (kauth_authorize_generic(me->l_cred, KAUTH_GENERIC_ISSUSER, 887 NULL) != 0) { 888 aprint_normal_dev(&sc->sc_dev, "mmap() rejected.\n"); 889 return -1; 890 } 891 } 892 893 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 894 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 895 BUS_SPACE_MAP_LINEAR); 896 return pa; 897 } 898 899 #ifdef PCI_MAGIC_IO_RANGE 900 /* allow mapping of IO space */ 901 if ((offset >= PCI_MAGIC_IO_RANGE) && 902 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 903 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 904 0, prot, BUS_SPACE_MAP_LINEAR); 905 return pa; 906 } 907 #endif 908 909 #ifdef OFB_ALLOW_OTHERS 910 if (offset >= 0x80000000) { 911 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 912 BUS_SPACE_MAP_LINEAR); 913 return pa; 914 } 915 #endif 916 return -1; 917 } 918 919 static void 920 chipsfb_init_screen(void *cookie, struct vcons_screen *scr, 921 int existing, long *defattr) 922 { 923 struct chipsfb_softc *sc = cookie; 924 struct rasops_info *ri = &scr->scr_ri; 925 926 ri->ri_depth = sc->bits_per_pixel; 927 ri->ri_width = sc->width; 928 ri->ri_height = sc->height; 929 ri->ri_stride = sc->width; 930 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 931 932 ri->ri_bits = bus_space_vaddr(sc->sc_fbt, sc->sc_fbh); 933 934 #ifdef CHIPSFB_DEBUG 935 aprint_debug("addr: %08lx\n", (ulong)ri->ri_bits); 936 #endif 937 if (existing) { 938 ri->ri_flg |= RI_CLEAR; 939 } 940 941 rasops_init(ri, sc->height/8, sc->width/8); 942 ri->ri_caps = WSSCREEN_WSCOLORS; 943 944 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 945 sc->width / ri->ri_font->fontwidth); 946 947 ri->ri_hw = scr; 948 ri->ri_ops.copyrows = chipsfb_copyrows; 949 ri->ri_ops.copycols = chipsfb_copycols; 950 ri->ri_ops.eraserows = chipsfb_eraserows; 951 ri->ri_ops.erasecols = chipsfb_erasecols; 952 ri->ri_ops.cursor = chipsfb_cursor; 953 ri->ri_ops.putchar = chipsfb_putchar; 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 void 966 chipsfb_init(struct chipsfb_softc *sc) 967 { 968 969 chipsfb_wait_idle(sc); 970 971 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_IO_CONTROL, 972 ENABLE_CRTC_EXT | ENABLE_ATTR_EXT); 973 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_ADDR_MAPPING, 974 ENABLE_LINEAR); 975 976 /* setup the blitter */ 977 } 978 979 static uint32_t 980 chipsfb_probe_vram(struct chipsfb_softc *sc) 981 { 982 uint32_t ofs = 0x00080000; /* 512kB */ 983 984 /* 985 * advance in 0.5MB steps, see if we can read back what we wrote and 986 * if what we wrote to 0 is left untouched. Max. fb size is 4MB so 987 * we voluntarily stop there. 988 */ 989 chipsfb_write32(sc, 0, 0xf0f0f0f0); 990 chipsfb_write32(sc, ofs, 0x0f0f0f0f); 991 while ((chipsfb_read32(sc, 0) == 0xf0f0f0f0) && 992 (chipsfb_read32(sc, ofs) == 0x0f0f0f0f) && 993 (ofs < 0x00400000)) { 994 995 ofs += 0x00080000; 996 chipsfb_write32(sc, ofs, 0x0f0f0f0f); 997 } 998 999 return ofs; 1000 } 1001
Indexes created Tue Sep 23 22:09:46 GMT 2025