ct65550.c revision 1.8
1 /* $NetBSD: ct65550.c,v 1.8 2013/10/09 17:20:54 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 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 /* 29 * A console driver for Chips & Technologies 65550 graphics controllers 30 */ 31 32 #include <sys/cdefs.h> 33 __KERNEL_RCSID(0, "$NetBSD: ct65550.c,v 1.8 2013/10/09 17:20:54 macallan Exp $"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/device.h> 39 #include <sys/kauth.h> 40 #include <sys/bus.h> 41 #include <dev/videomode/videomode.h> 42 43 #include <dev/ic/ct65550reg.h> 44 #include <dev/ic/ct65550var.h> 45 46 #include "opt_wsemul.h" 47 #include "opt_chipsfb.h" 48 49 static struct vcons_screen chipsfb_console_screen; 50 51 extern const u_char rasops_cmap[768]; 52 53 static void chipsfb_init(struct chipsfb_softc *); 54 55 static void chipsfb_cursor(void *, int, int, int); 56 static void chipsfb_copycols(void *, int, int, int, int); 57 static void chipsfb_erasecols(void *, int, int, int, long); 58 static void chipsfb_copyrows(void *, int, int, int); 59 static void chipsfb_eraserows(void *, int, int, long); 60 61 #if 0 62 static int chipsfb_allocattr(void *, int, int, int, long *); 63 static void chipsfb_scroll(void *, void *, int); 64 static int chipsfb_load_font(void *, void *, struct wsdisplay_font *); 65 #endif 66 67 static int chipsfb_putcmap(struct chipsfb_softc *, 68 struct wsdisplay_cmap *); 69 static int chipsfb_getcmap(struct chipsfb_softc *, 70 struct wsdisplay_cmap *); 71 static int chipsfb_putpalreg(struct chipsfb_softc *, uint8_t, uint8_t, 72 uint8_t, uint8_t); 73 74 static void chipsfb_bitblt(struct chipsfb_softc *, int, int, int, int, 75 int, int, uint8_t); 76 static void chipsfb_rectfill(struct chipsfb_softc *, int, int, int, int, 77 int); 78 static void chipsfb_putchar(void *, int, int, u_int, long); 79 static void chipsfb_setup_mono(struct chipsfb_softc *, int, int, int, 80 int, uint32_t, uint32_t); 81 static void chipsfb_feed(struct chipsfb_softc *, int, uint8_t *); 82 83 #if 0 84 static void chipsfb_showpal(struct chipsfb_softc *); 85 #endif 86 static void chipsfb_restore_palette(struct chipsfb_softc *); 87 88 static void chipsfb_wait_idle(struct chipsfb_softc *); 89 90 struct wsscreen_descr chipsfb_defaultscreen = { 91 "default", /* name */ 92 0, 0, /* ncols, nrows */ 93 NULL, /* textops */ 94 8, 16, /* fontwidth, fontheight */ 95 WSSCREEN_WSCOLORS | WSSCREEN_HILIT, /* capabilities */ 96 NULL, /* modecookie */ 97 }; 98 99 const struct wsscreen_descr *_chipsfb_scrlist[] = { 100 &chipsfb_defaultscreen, 101 /* XXX other formats, graphics screen? */ 102 }; 103 104 struct wsscreen_list chipsfb_screenlist = { 105 sizeof(_chipsfb_scrlist) / sizeof(struct wsscreen_descr *), _chipsfb_scrlist 106 }; 107 108 static int chipsfb_ioctl(void *, void *, u_long, void *, int, 109 struct lwp *); 110 static paddr_t chipsfb_mmap(void *, void *, off_t, int); 111 static void chipsfb_clearscreen(struct chipsfb_softc *); 112 static void chipsfb_init_screen(void *, struct vcons_screen *, int, 113 long *); 114 115 116 struct wsdisplay_accessops chipsfb_accessops = { 117 chipsfb_ioctl, 118 chipsfb_mmap, 119 NULL, /* vcons_alloc_screen */ 120 NULL, /* vcons_free_screen */ 121 NULL, /* vcons_show_screen */ 122 NULL, /* load_font */ 123 NULL, /* polls */ 124 NULL, /* scroll */ 125 }; 126 127 /* 128 * Inline functions for getting access to register aperture. 129 */ 130 static inline void 131 chipsfb_write32(struct chipsfb_softc *sc, uint32_t reg, uint32_t val) 132 { 133 bus_space_write_4(sc->sc_memt, sc->sc_mmregh, reg, val); 134 } 135 136 static inline uint32_t 137 chipsfb_read32(struct chipsfb_softc *sc, uint32_t reg) 138 { 139 return bus_space_read_4(sc->sc_memt, sc->sc_mmregh, reg); 140 } 141 142 static inline void 143 chipsfb_write_vga(struct chipsfb_softc *sc, uint32_t reg, uint8_t val) 144 { 145 bus_space_write_1(sc->sc_iot, sc->sc_ioregh, reg, val); 146 } 147 148 static inline uint8_t 149 chipsfb_read_vga(struct chipsfb_softc *sc, uint32_t reg) 150 { 151 return bus_space_read_1(sc->sc_iot, sc->sc_ioregh, reg); 152 } 153 154 static inline uint8_t 155 chipsfb_read_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index) 156 { 157 158 chipsfb_write_vga(sc, reg & 0xfffe, index); 159 return chipsfb_read_vga(sc, reg | 0x0001); 160 } 161 162 static inline void 163 chipsfb_write_indexed(struct chipsfb_softc *sc, uint32_t reg, uint8_t index, 164 uint8_t val) 165 { 166 167 chipsfb_write_vga(sc, reg & 0xfffe, index); 168 chipsfb_write_vga(sc, reg | 0x0001, val); 169 } 170 171 static void 172 chipsfb_wait_idle(struct chipsfb_softc *sc) 173 { 174 175 #ifdef CHIPSFB_DEBUG 176 chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0); 177 #endif 178 179 /* spin until the blitter is idle */ 180 while ((chipsfb_read32(sc, CT_BLT_CONTROL) & BLT_IS_BUSY) != 0) { 181 } 182 183 #ifdef CHIPSFB_DEBUG 184 chipsfb_write32(sc, CT_OFF_FB + (800 * 598) - 4, 0xffffffff); 185 #endif 186 } 187 188 void 189 chipsfb_do_attach(struct chipsfb_softc *sc) 190 { 191 struct wsemuldisplaydev_attach_args aa; 192 struct rasops_info *ri; 193 prop_dictionary_t dict; 194 ulong defattr; 195 bool console = false; 196 int width, height, i, j; 197 uint32_t bg, fg, ul; 198 uint8_t cmap[768]; 199 200 dict = device_properties(sc->sc_dev); 201 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 202 sc->sc_dacw = -1; 203 204 #ifdef CHIPSFB_DEBUG 205 printf(prop_dictionary_externalize(dict)); 206 #endif 207 chipsfb_init(sc); 208 209 width = height = -1; 210 211 /* detect panel size */ 212 width = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HSIZE_LSB); 213 width |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HORZ_OVERFLOW_1) 214 & 0x0f) << 8; 215 width = (width + 1) * 8; 216 height = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VSIZE_LSB); 217 height |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VERT_OVERFLOW_1) 218 & 0x0f) << 8; 219 height++; 220 if ((width < 640) || ( width > 1280) || (height < 480) || 221 (height > 1024)) { 222 /* no sane values in the panel registers */ 223 width = height = -1; 224 } else 225 aprint_verbose("Panel size: %d x %d\n", width, height); 226 227 if (!prop_dictionary_get_uint32(dict, "width", &sc->width)) 228 sc->width = width; 229 if (!prop_dictionary_get_uint32(dict, "height", &sc->height)) 230 sc->height = height; 231 if (!prop_dictionary_get_uint32(dict, "depth", &sc->bits_per_pixel)) 232 sc->bits_per_pixel = 8; 233 if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->linebytes)) 234 sc->linebytes = (sc->width * sc->bits_per_pixel) >> 3; 235 236 prop_dictionary_get_bool(dict, "is_console", &console); 237 238 #ifdef notyet 239 /* XXX this should at least be configurable via kernel config */ 240 chipsfb_set_videomode(sc, &videomode_list[16]); 241 #endif 242 243 vcons_init(&sc->vd, sc, &chipsfb_defaultscreen, &chipsfb_accessops); 244 sc->vd.init_screen = chipsfb_init_screen; 245 246 ri = &chipsfb_console_screen.scr_ri; 247 if (console) { 248 vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1, 249 &defattr); 250 chipsfb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 251 252 chipsfb_defaultscreen.textops = &ri->ri_ops; 253 chipsfb_defaultscreen.capabilities = ri->ri_caps; 254 chipsfb_defaultscreen.nrows = ri->ri_rows; 255 chipsfb_defaultscreen.ncols = ri->ri_cols; 256 wsdisplay_cnattach(&chipsfb_defaultscreen, ri, 0, 0, defattr); 257 } else { 258 if (chipsfb_console_screen.scr_ri.ri_rows == 0) { 259 /* do some minimal setup to avoid weirdnesses later */ 260 vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1, 261 &defattr); 262 } else 263 (*ri->ri_ops.allocattr)(ri, 0, 0, 0, &defattr); 264 265 } 266 267 rasops_unpack_attr(defattr, &fg, &bg, &ul); 268 sc->sc_bg = ri->ri_devcmap[bg]; 269 chipsfb_clearscreen(sc); 270 271 if (console) 272 vcons_replay_msgbuf(&chipsfb_console_screen); 273 274 aprint_normal_dev(sc->sc_dev, "%d MB aperture, %d MB VRAM at 0x%08x\n", 275 (u_int)(sc->sc_fbsize >> 20), 276 (int)sc->memsize >> 20, (u_int)sc->sc_fb); 277 #ifdef CHIPSFB_DEBUG 278 aprint_debug("fb: %08lx\n", (ulong)ri->ri_bits); 279 #endif 280 281 j = 0; 282 rasops_get_cmap(ri, cmap, sizeof(cmap)); 283 for (i = 0; i < 256; i++) { 284 chipsfb_putpalreg(sc, i, cmap[j], cmap[j + 1], cmap[j + 2]); 285 j += 3; 286 } 287 288 aa.console = console; 289 aa.scrdata = &chipsfb_screenlist; 290 aa.accessops = &chipsfb_accessops; 291 aa.accesscookie = &sc->vd; 292 293 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 294 } 295 296 static int 297 chipsfb_putpalreg(struct chipsfb_softc *sc, uint8_t index, uint8_t r, 298 uint8_t g, uint8_t b) 299 { 300 301 sc->sc_cmap_red[index] = r; 302 sc->sc_cmap_green[index] = g; 303 sc->sc_cmap_blue[index] = b; 304 305 chipsfb_write_vga(sc, CT_DACMASK, 0xff); 306 chipsfb_write_vga(sc, CT_WRITEINDEX, index); 307 chipsfb_write_vga(sc, CT_DACDATA, r); 308 chipsfb_write_vga(sc, CT_DACDATA, g); 309 chipsfb_write_vga(sc, CT_DACDATA, b); 310 311 return 0; 312 } 313 314 static int 315 chipsfb_putcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 316 { 317 u_char *r, *g, *b; 318 u_int index = cm->index; 319 u_int count = cm->count; 320 int i, error; 321 u_char rbuf[256], gbuf[256], bbuf[256]; 322 323 #ifdef CHIPSFB_DEBUG 324 aprint_debug("putcmap: %d %d\n",index, count); 325 #endif 326 if (cm->index >= 256 || cm->count > 256 || 327 (cm->index + cm->count) > 256) 328 return EINVAL; 329 error = copyin(cm->red, &rbuf[index], count); 330 if (error) 331 return error; 332 error = copyin(cm->green, &gbuf[index], count); 333 if (error) 334 return error; 335 error = copyin(cm->blue, &bbuf[index], count); 336 if (error) 337 return error; 338 339 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 340 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 341 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 342 343 r = &sc->sc_cmap_red[index]; 344 g = &sc->sc_cmap_green[index]; 345 b = &sc->sc_cmap_blue[index]; 346 347 for (i = 0; i < count; i++) { 348 chipsfb_putpalreg(sc, index, *r, *g, *b); 349 index++; 350 r++, g++, b++; 351 } 352 return 0; 353 } 354 355 static int 356 chipsfb_getcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 357 { 358 u_int index = cm->index; 359 u_int count = cm->count; 360 int error; 361 362 if (index >= 255 || count > 256 || index + count > 256) 363 return EINVAL; 364 365 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 366 if (error) 367 return error; 368 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 369 if (error) 370 return error; 371 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 372 if (error) 373 return error; 374 375 return 0; 376 } 377 378 static void 379 chipsfb_clearscreen(struct chipsfb_softc *sc) 380 { 381 chipsfb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 382 } 383 384 /* 385 * wsdisplay_emulops 386 */ 387 388 static void 389 chipsfb_cursor(void *cookie, int on, int row, int col) 390 { 391 struct rasops_info *ri = cookie; 392 struct vcons_screen *scr = ri->ri_hw; 393 struct chipsfb_softc *sc = scr->scr_cookie; 394 int x, y, wi, he; 395 396 wi = ri->ri_font->fontwidth; 397 he = ri->ri_font->fontheight; 398 399 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 400 x = ri->ri_ccol * wi + ri->ri_xorigin; 401 y = ri->ri_crow * he + ri->ri_yorigin; 402 if (ri->ri_flg & RI_CURSOR) { 403 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 404 ri->ri_flg &= ~RI_CURSOR; 405 } 406 ri->ri_crow = row; 407 ri->ri_ccol = col; 408 if (on) { 409 x = ri->ri_ccol * wi + ri->ri_xorigin; 410 y = ri->ri_crow * he + ri->ri_yorigin; 411 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 412 ri->ri_flg |= RI_CURSOR; 413 } 414 } else { 415 ri->ri_flg &= ~RI_CURSOR; 416 ri->ri_crow = row; 417 ri->ri_ccol = col; 418 } 419 } 420 421 #if 0 422 int 423 chipsfb_mapchar(void *cookie, int uni, u_int *index) 424 { 425 return 0; 426 } 427 #endif 428 429 static void 430 chipsfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 431 { 432 struct rasops_info *ri = cookie; 433 struct vcons_screen *scr = ri->ri_hw; 434 struct chipsfb_softc *sc = scr->scr_cookie; 435 int32_t xs, xd, y, width, height; 436 437 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 438 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 439 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 440 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 441 width = ri->ri_font->fontwidth * ncols; 442 height = ri->ri_font->fontheight; 443 chipsfb_bitblt(sc, xs, y, xd, y, width, height, ROP_COPY); 444 } 445 } 446 447 static void 448 chipsfb_erasecols(void *cookie, int row, int startcol, int ncols, 449 long fillattr) 450 { 451 struct rasops_info *ri = cookie; 452 struct vcons_screen *scr = ri->ri_hw; 453 struct chipsfb_softc *sc = scr->scr_cookie; 454 int32_t x, y, width, height, fg, bg, ul; 455 456 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 457 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 458 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 459 width = ri->ri_font->fontwidth * ncols; 460 height = ri->ri_font->fontheight; 461 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 462 463 chipsfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 464 } 465 } 466 467 static void 468 chipsfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 469 { 470 struct rasops_info *ri = cookie; 471 struct vcons_screen *scr = ri->ri_hw; 472 struct chipsfb_softc *sc = scr->scr_cookie; 473 int32_t x, ys, yd, width, height; 474 475 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 476 x = ri->ri_xorigin; 477 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 478 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 479 width = ri->ri_emuwidth; 480 height = ri->ri_font->fontheight * nrows; 481 chipsfb_bitblt(sc, x, ys, x, yd, width, height, ROP_COPY); 482 } 483 } 484 485 static void 486 chipsfb_eraserows(void *cookie, int row, int nrows, long fillattr) 487 { 488 struct rasops_info *ri = cookie; 489 struct vcons_screen *scr = ri->ri_hw; 490 struct chipsfb_softc *sc = scr->scr_cookie; 491 int32_t x, y, width, height, fg, bg, ul; 492 493 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 494 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 495 if ((row == 0) && (nrows == ri->ri_rows)) { 496 /* clear the whole screen */ 497 chipsfb_rectfill(sc, 0, 0, ri->ri_width, 498 ri->ri_height, ri->ri_devcmap[bg]); 499 } else { 500 x = ri->ri_xorigin; 501 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 502 width = ri->ri_emuwidth; 503 height = ri->ri_font->fontheight * nrows; 504 chipsfb_rectfill(sc, x, y, width, height, 505 ri->ri_devcmap[bg]); 506 } 507 } 508 } 509 510 static void 511 chipsfb_bitblt(struct chipsfb_softc *sc, int xs, int ys, int xd, int yd, 512 int width, int height, uint8_t rop) 513 { 514 uint32_t src, dst, cmd = rop, stride, size; 515 516 cmd |= BLT_PAT_IS_SOLID; 517 518 /* we assume 8 bit for now */ 519 src = xs + ys * sc->linebytes; 520 dst = xd + yd * sc->linebytes; 521 522 if (xs < xd) { 523 /* right-to-left operation */ 524 cmd |= BLT_START_RIGHT; 525 src += width - 1; 526 dst += width - 1; 527 } 528 529 if (ys < yd) { 530 /* bottom-to-top operation */ 531 cmd |= BLT_START_BOTTOM; 532 src += (height - 1) * sc->linebytes; 533 dst += (height - 1) * sc->linebytes; 534 } 535 536 stride = (sc->linebytes << 16) | sc->linebytes; 537 size = (height << 16) | width; 538 539 chipsfb_wait_idle(sc); 540 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 541 chipsfb_write32(sc, CT_BLT_SRCADDR, src); 542 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 543 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 544 chipsfb_write32(sc, CT_BLT_SIZE, size); 545 #ifdef CHIPSFB_WAIT 546 chipsfb_wait_idle(sc); 547 #endif 548 } 549 550 static void 551 chipsfb_rectfill(struct chipsfb_softc *sc, int x, int y, int width, 552 int height, int colour) 553 { 554 uint32_t dst, cmd, stride, size; 555 556 cmd = BLT_PAT_IS_SOLID | BLT_PAT_IS_MONO | ROP_PAT; 557 558 /* we assume 8 bit for now */ 559 dst = x + y * sc->linebytes; 560 561 stride = (sc->linebytes << 16) | sc->linebytes; 562 size = (height << 16) | width; 563 564 chipsfb_wait_idle(sc); 565 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 566 chipsfb_write32(sc, CT_BLT_SRCADDR, dst); 567 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 568 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 569 chipsfb_write32(sc, CT_BLT_BG, colour); 570 chipsfb_write32(sc, CT_BLT_FG, colour); 571 chipsfb_write32(sc, CT_BLT_SIZE, size); 572 #ifdef CHIPSFB_WAIT 573 chipsfb_wait_idle(sc); 574 #endif 575 } 576 577 static void 578 chipsfb_putchar(void *cookie, int row, int col, u_int c, long attr) 579 { 580 struct rasops_info *ri = cookie; 581 struct wsdisplay_font *font = PICK_FONT(ri, c); 582 struct vcons_screen *scr = ri->ri_hw; 583 struct chipsfb_softc *sc = scr->scr_cookie; 584 585 if (__predict_false((unsigned int)row > ri->ri_rows || 586 (unsigned int)col > ri->ri_cols)) 587 return; 588 589 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 590 uint8_t *data; 591 int fg, bg, uc; 592 int x, y, wi, he; 593 594 wi = font->fontwidth; 595 he = font->fontheight; 596 597 if (!CHAR_IN_FONT(c, font)) 598 return; 599 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 600 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 601 x = ri->ri_xorigin + col * wi; 602 y = ri->ri_yorigin + row * he; 603 if (c == 0x20) { 604 chipsfb_rectfill(sc, x, y, wi, he, bg); 605 } else { 606 uc = c - font->firstchar; 607 data = (uint8_t *)font->data + uc * 608 ri->ri_fontscale; 609 chipsfb_setup_mono(sc, x, y, wi, he, fg, bg); 610 chipsfb_feed(sc, font->stride * he, data); 611 } 612 } 613 } 614 615 static void 616 chipsfb_setup_mono(struct chipsfb_softc *sc, int xd, int yd, int width, 617 int height, uint32_t fg, uint32_t bg) 618 { 619 uint32_t dst, cmd, stride, size; 620 621 cmd = BLT_PAT_IS_SOLID | BLT_SRC_IS_CPU | BLT_SRC_IS_MONO | ROP_COPY; 622 623 /* we assume 8 bit for now */ 624 dst = xd + yd * sc->linebytes; 625 626 stride = (sc->linebytes << 16); 627 size = (height << 16) | width; 628 629 chipsfb_wait_idle(sc); 630 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 631 chipsfb_write32(sc, CT_BLT_EXPCTL, MONO_SRC_ALIGN_BYTE); 632 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 633 chipsfb_write32(sc, CT_BLT_SRCADDR, 0); 634 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 635 chipsfb_write32(sc, CT_BLT_BG, bg); 636 chipsfb_write32(sc, CT_BLT_FG, fg); 637 chipsfb_write32(sc, CT_BLT_SIZE, size); 638 } 639 640 static void 641 chipsfb_feed(struct chipsfb_softc *sc, int count, uint8_t *data) 642 { 643 int i; 644 uint32_t latch = 0, bork; 645 int shift = 0; 646 647 for (i = 0; i < count; i++) { 648 bork = data[i]; 649 latch |= (bork << shift); 650 if (shift == 24) { 651 chipsfb_write32(sc, CT_OFF_DATA - CT_OFF_BITBLT, latch); 652 latch = 0; 653 shift = 0; 654 } else 655 shift += 8; 656 } 657 658 if (shift != 0) { 659 chipsfb_write32(sc, CT_OFF_DATA - CT_OFF_BITBLT, latch); 660 } 661 662 /* apparently the chip wants 64bit-aligned data or it won't go idle */ 663 if ((count + 3) & 0x04) { 664 chipsfb_write32(sc, CT_OFF_DATA - CT_OFF_BITBLT, 0); 665 } 666 #ifdef CHIPSFB_WAIT 667 chipsfb_wait_idle(sc); 668 #endif 669 } 670 671 #if 0 672 static void 673 chipsfb_showpal(struct chipsfb_softc *sc) 674 { 675 int i, x = 0; 676 677 for (i = 0; i < 16; i++) { 678 chipsfb_rectfill(sc, x, 0, 64, 64, i); 679 x += 64; 680 } 681 } 682 #endif 683 684 #if 0 685 static int 686 chipsfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 687 { 688 689 return 0; 690 } 691 #endif 692 693 static void 694 chipsfb_restore_palette(struct chipsfb_softc *sc) 695 { 696 int i; 697 698 for (i = 0; i < 256; i++) { 699 chipsfb_putpalreg(sc, 700 i, 701 sc->sc_cmap_red[i], 702 sc->sc_cmap_green[i], 703 sc->sc_cmap_blue[i]); 704 } 705 } 706 707 /* 708 * wsdisplay_accessops 709 */ 710 711 static int 712 chipsfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 713 struct lwp *l) 714 { 715 struct vcons_data *vd = v; 716 struct chipsfb_softc *sc = vd->cookie; 717 struct wsdisplay_fbinfo *wdf; 718 struct vcons_screen *ms = vd->active; 719 720 switch (cmd) { 721 case WSDISPLAYIO_GTYPE: 722 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 723 return 0; 724 725 case WSDISPLAYIO_GINFO: 726 wdf = (void *)data; 727 wdf->height = ms->scr_ri.ri_height; 728 wdf->width = ms->scr_ri.ri_width; 729 wdf->depth = ms->scr_ri.ri_depth; 730 wdf->cmsize = 256; 731 return 0; 732 733 case WSDISPLAYIO_GETCMAP: 734 return chipsfb_getcmap(sc, 735 (struct wsdisplay_cmap *)data); 736 737 case WSDISPLAYIO_PUTCMAP: 738 return chipsfb_putcmap(sc, 739 (struct wsdisplay_cmap *)data); 740 741 742 case WSDISPLAYIO_SMODE: { 743 int new_mode = *(int*)data; 744 if (new_mode != sc->sc_mode) { 745 sc->sc_mode = new_mode; 746 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 747 chipsfb_restore_palette(sc); 748 vcons_redraw_screen(ms); 749 } 750 } 751 } 752 return 0; 753 754 case WSDISPLAYIO_GET_FBINFO: { 755 struct wsdisplayio_fbinfo *fbi = data; 756 return wsdisplayio_get_fbinfo(&ms->scr_ri, fbi); 757 } 758 759 default: 760 if (sc->sc_ioctl != NULL) 761 return sc->sc_ioctl(v, vs, cmd, data, flag, l); 762 } 763 return EPASSTHROUGH; 764 } 765 766 static paddr_t 767 chipsfb_mmap(void *v, void *vs, off_t offset, int prot) 768 { 769 struct vcons_data *vd = v; 770 struct chipsfb_softc *sc = vd->cookie; 771 paddr_t pa; 772 773 if (sc->sc_mmap != NULL) 774 return sc->sc_mmap(v, vs, offset, prot); 775 776 /* 'regular' framebuffer mmap()ing */ 777 if (offset < sc->memsize) { 778 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 779 BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE); 780 return pa; 781 } 782 783 /* 784 * restrict all other mappings to processes with superuser privileges 785 * or the kernel itself 786 */ 787 if (kauth_authorize_machdep(kauth_cred_get(), KAUTH_MACHDEP_UNMANAGEDMEM, 788 NULL, NULL, NULL, NULL) != 0) { 789 aprint_normal_dev(sc->sc_dev, "mmap() rejected.\n"); 790 return -1; 791 } 792 793 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 794 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 795 BUS_SPACE_MAP_LINEAR); 796 return pa; 797 } 798 799 #ifdef PCI_MAGIC_IO_RANGE 800 /* allow mapping of IO space */ 801 if ((offset >= PCI_MAGIC_IO_RANGE) && 802 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 803 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 804 0, prot, BUS_SPACE_MAP_LINEAR); 805 return pa; 806 } 807 #endif 808 809 return -1; 810 } 811 812 static void 813 chipsfb_init_screen(void *cookie, struct vcons_screen *scr, 814 int existing, long *defattr) 815 { 816 struct chipsfb_softc *sc = cookie; 817 struct rasops_info *ri = &scr->scr_ri; 818 819 ri->ri_depth = sc->bits_per_pixel; 820 ri->ri_width = sc->width; 821 ri->ri_height = sc->height; 822 ri->ri_stride = sc->width; 823 ri->ri_flg = RI_CENTER | RI_FULLCLEAR | RI_8BIT_IS_RGB; 824 825 ri->ri_bits = bus_space_vaddr(sc->sc_memt, sc->sc_fbh); 826 827 #ifdef CHIPSFB_DEBUG 828 aprint_debug("addr: %08lx\n", (ulong)ri->ri_bits); 829 #endif 830 if (existing) { 831 ri->ri_flg |= RI_CLEAR; 832 } 833 834 rasops_init(ri, 0, 0); 835 ri->ri_caps = WSSCREEN_WSCOLORS; 836 837 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 838 sc->width / ri->ri_font->fontwidth); 839 840 ri->ri_hw = scr; 841 ri->ri_ops.copyrows = chipsfb_copyrows; 842 ri->ri_ops.copycols = chipsfb_copycols; 843 ri->ri_ops.eraserows = chipsfb_eraserows; 844 ri->ri_ops.erasecols = chipsfb_erasecols; 845 ri->ri_ops.cursor = chipsfb_cursor; 846 ri->ri_ops.putchar = chipsfb_putchar; 847 } 848 849 #if 0 850 int 851 chipsfb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 852 { 853 854 return 0; 855 } 856 #endif 857 858 static void 859 chipsfb_init(struct chipsfb_softc *sc) 860 { 861 862 chipsfb_wait_idle(sc); 863 864 /* setup the blitter */ 865 } 866 867 uint32_t 868 chipsfb_probe_vram(struct chipsfb_softc *sc) 869 { 870 uint32_t ofs = 0x00080000; /* 512kB */ 871 872 /* 873 * advance in 0.5MB steps, see if we can read back what we wrote and 874 * if what we wrote to 0 is left untouched. Max. fb size is 4MB so 875 * we voluntarily stop there. 876 */ 877 bus_space_write_4(sc->sc_memt, sc->sc_fbh, 0, 0xf0f0f0f0); 878 bus_space_write_4(sc->sc_memt, sc->sc_fbh, ofs, 0x0f0f0f0f); 879 while ((bus_space_read_4(sc->sc_memt, sc->sc_fbh, 0) == 0xf0f0f0f0) && 880 (bus_space_read_4(sc->sc_memt, sc->sc_fbh, ofs) == 0x0f0f0f0f) && 881 (ofs < 0x00400000)) { 882 883 ofs += 0x00080000; 884 bus_space_write_4(sc->sc_memt, sc->sc_fbh, ofs, 0x0f0f0f0f); 885 } 886 887 return ofs; 888 } 889
Indexes created Wed Sep 24 15:09:51 GMT 2025