ct65550.c revision 1.4
1 /* $NetBSD: ct65550.c,v 1.4 2012/03/13 18:40:31 elad 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 1.4 2012/03/13 18:40:31 elad 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; 198 199 dict = device_properties(sc->sc_dev); 200 sc->sc_mode = WSDISPLAYIO_MODE_EMUL; 201 sc->sc_dacw = -1; 202 203 #ifdef CHIPSFB_DEBUG 204 printf(prop_dictionary_externalize(dict)); 205 #endif 206 chipsfb_init(sc); 207 208 width = height = -1; 209 210 /* detect panel size */ 211 width = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HSIZE_LSB); 212 width |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_HORZ_OVERFLOW_1) 213 & 0x0f) << 8; 214 width = (width + 1) * 8; 215 height = chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VSIZE_LSB); 216 height |= (chipsfb_read_indexed(sc, CT_FP_INDEX, FP_VERT_OVERFLOW_1) 217 & 0x0f) << 8; 218 height++; 219 if ((width < 640) || ( width > 1280) || (height < 480) || 220 (height > 1024)) { 221 /* no sane values in the panel registers */ 222 width = height = -1; 223 } else 224 aprint_verbose("Panel size: %d x %d\n", width, height); 225 226 if (!prop_dictionary_get_uint32(dict, "width", &sc->width)) 227 sc->width = width; 228 if (!prop_dictionary_get_uint32(dict, "height", &sc->height)) 229 sc->height = height; 230 if (!prop_dictionary_get_uint32(dict, "depth", &sc->bits_per_pixel)) 231 sc->bits_per_pixel = 8; 232 if (!prop_dictionary_get_uint32(dict, "linebytes", &sc->linebytes)) 233 sc->linebytes = (sc->width * sc->bits_per_pixel) >> 3; 234 235 prop_dictionary_get_bool(dict, "is_console", &console); 236 237 #ifdef notyet 238 /* XXX this should at least be configurable via kernel config */ 239 chipsfb_set_videomode(sc, &videomode_list[16]); 240 #endif 241 242 vcons_init(&sc->vd, sc, &chipsfb_defaultscreen, &chipsfb_accessops); 243 sc->vd.init_screen = chipsfb_init_screen; 244 245 ri = &chipsfb_console_screen.scr_ri; 246 if (console) { 247 vcons_init_screen(&sc->vd, &chipsfb_console_screen, 1, 248 &defattr); 249 chipsfb_console_screen.scr_flags |= VCONS_SCREEN_IS_STATIC; 250 251 chipsfb_defaultscreen.textops = &ri->ri_ops; 252 chipsfb_defaultscreen.capabilities = ri->ri_caps; 253 chipsfb_defaultscreen.nrows = ri->ri_rows; 254 chipsfb_defaultscreen.ncols = ri->ri_cols; 255 wsdisplay_cnattach(&chipsfb_defaultscreen, ri, 0, 0, defattr); 256 } else { 257 /* 258 * since we're not the console we can postpone the rest 259 * until someone actually allocates a screen for us 260 */ 261 } 262 263 rasops_unpack_attr(defattr, &fg, &bg, &ul); 264 sc->sc_bg = ri->ri_devcmap[bg]; 265 chipsfb_clearscreen(sc); 266 267 if (console) 268 vcons_replay_msgbuf(&chipsfb_console_screen); 269 270 aprint_normal_dev(sc->sc_dev, "%d MB aperture, %d MB VRAM at 0x%08x\n", 271 (u_int)(sc->sc_fbsize >> 20), 272 (int)sc->memsize >> 20, (u_int)sc->sc_fb); 273 #ifdef CHIPSFB_DEBUG 274 aprint_debug("fb: %08lx\n", (ulong)ri->ri_bits); 275 #endif 276 277 j = 0; 278 for (i = 0; i < 256; i++) { 279 chipsfb_putpalreg(sc, i, rasops_cmap[j], rasops_cmap[j + 1], 280 rasops_cmap[j + 2]); 281 j += 3; 282 } 283 284 aa.console = console; 285 aa.scrdata = &chipsfb_screenlist; 286 aa.accessops = &chipsfb_accessops; 287 aa.accesscookie = &sc->vd; 288 289 config_found(sc->sc_dev, &aa, wsemuldisplaydevprint); 290 } 291 292 static int 293 chipsfb_putpalreg(struct chipsfb_softc *sc, uint8_t index, uint8_t r, 294 uint8_t g, uint8_t b) 295 { 296 297 sc->sc_cmap_red[index] = r; 298 sc->sc_cmap_green[index] = g; 299 sc->sc_cmap_blue[index] = b; 300 301 chipsfb_write_vga(sc, CT_DACMASK, 0xff); 302 chipsfb_write_vga(sc, CT_WRITEINDEX, index); 303 chipsfb_write_vga(sc, CT_DACDATA, r); 304 chipsfb_write_vga(sc, CT_DACDATA, g); 305 chipsfb_write_vga(sc, CT_DACDATA, b); 306 307 return 0; 308 } 309 310 static int 311 chipsfb_putcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 312 { 313 u_char *r, *g, *b; 314 u_int index = cm->index; 315 u_int count = cm->count; 316 int i, error; 317 u_char rbuf[256], gbuf[256], bbuf[256]; 318 319 #ifdef CHIPSFB_DEBUG 320 aprint_debug("putcmap: %d %d\n",index, count); 321 #endif 322 if (cm->index >= 256 || cm->count > 256 || 323 (cm->index + cm->count) > 256) 324 return EINVAL; 325 error = copyin(cm->red, &rbuf[index], count); 326 if (error) 327 return error; 328 error = copyin(cm->green, &gbuf[index], count); 329 if (error) 330 return error; 331 error = copyin(cm->blue, &bbuf[index], count); 332 if (error) 333 return error; 334 335 memcpy(&sc->sc_cmap_red[index], &rbuf[index], count); 336 memcpy(&sc->sc_cmap_green[index], &gbuf[index], count); 337 memcpy(&sc->sc_cmap_blue[index], &bbuf[index], count); 338 339 r = &sc->sc_cmap_red[index]; 340 g = &sc->sc_cmap_green[index]; 341 b = &sc->sc_cmap_blue[index]; 342 343 for (i = 0; i < count; i++) { 344 chipsfb_putpalreg(sc, index, *r, *g, *b); 345 index++; 346 r++, g++, b++; 347 } 348 return 0; 349 } 350 351 static int 352 chipsfb_getcmap(struct chipsfb_softc *sc, struct wsdisplay_cmap *cm) 353 { 354 u_int index = cm->index; 355 u_int count = cm->count; 356 int error; 357 358 if (index >= 255 || count > 256 || index + count > 256) 359 return EINVAL; 360 361 error = copyout(&sc->sc_cmap_red[index], cm->red, count); 362 if (error) 363 return error; 364 error = copyout(&sc->sc_cmap_green[index], cm->green, count); 365 if (error) 366 return error; 367 error = copyout(&sc->sc_cmap_blue[index], cm->blue, count); 368 if (error) 369 return error; 370 371 return 0; 372 } 373 374 static void 375 chipsfb_clearscreen(struct chipsfb_softc *sc) 376 { 377 chipsfb_rectfill(sc, 0, 0, sc->width, sc->height, sc->sc_bg); 378 } 379 380 /* 381 * wsdisplay_emulops 382 */ 383 384 static void 385 chipsfb_cursor(void *cookie, int on, int row, int col) 386 { 387 struct rasops_info *ri = cookie; 388 struct vcons_screen *scr = ri->ri_hw; 389 struct chipsfb_softc *sc = scr->scr_cookie; 390 int x, y, wi, he; 391 392 wi = ri->ri_font->fontwidth; 393 he = ri->ri_font->fontheight; 394 395 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 396 x = ri->ri_ccol * wi + ri->ri_xorigin; 397 y = ri->ri_crow * he + ri->ri_yorigin; 398 if (ri->ri_flg & RI_CURSOR) { 399 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 400 ri->ri_flg &= ~RI_CURSOR; 401 } 402 ri->ri_crow = row; 403 ri->ri_ccol = col; 404 if (on) { 405 x = ri->ri_ccol * wi + ri->ri_xorigin; 406 y = ri->ri_crow * he + ri->ri_yorigin; 407 chipsfb_bitblt(sc, x, y, x, y, wi, he, ROP_NOT_DST); 408 ri->ri_flg |= RI_CURSOR; 409 } 410 } else { 411 ri->ri_flg &= ~RI_CURSOR; 412 ri->ri_crow = row; 413 ri->ri_ccol = col; 414 } 415 } 416 417 #if 0 418 int 419 chipsfb_mapchar(void *cookie, int uni, u_int *index) 420 { 421 return 0; 422 } 423 #endif 424 425 static void 426 chipsfb_copycols(void *cookie, int row, int srccol, int dstcol, int ncols) 427 { 428 struct rasops_info *ri = cookie; 429 struct vcons_screen *scr = ri->ri_hw; 430 struct chipsfb_softc *sc = scr->scr_cookie; 431 int32_t xs, xd, y, width, height; 432 433 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 434 xs = ri->ri_xorigin + ri->ri_font->fontwidth * srccol; 435 xd = ri->ri_xorigin + ri->ri_font->fontwidth * dstcol; 436 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 437 width = ri->ri_font->fontwidth * ncols; 438 height = ri->ri_font->fontheight; 439 chipsfb_bitblt(sc, xs, y, xd, y, width, height, ROP_COPY); 440 } 441 } 442 443 static void 444 chipsfb_erasecols(void *cookie, int row, int startcol, int ncols, 445 long fillattr) 446 { 447 struct rasops_info *ri = cookie; 448 struct vcons_screen *scr = ri->ri_hw; 449 struct chipsfb_softc *sc = scr->scr_cookie; 450 int32_t x, y, width, height, fg, bg, ul; 451 452 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 453 x = ri->ri_xorigin + ri->ri_font->fontwidth * startcol; 454 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 455 width = ri->ri_font->fontwidth * ncols; 456 height = ri->ri_font->fontheight; 457 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 458 459 chipsfb_rectfill(sc, x, y, width, height, ri->ri_devcmap[bg]); 460 } 461 } 462 463 static void 464 chipsfb_copyrows(void *cookie, int srcrow, int dstrow, int nrows) 465 { 466 struct rasops_info *ri = cookie; 467 struct vcons_screen *scr = ri->ri_hw; 468 struct chipsfb_softc *sc = scr->scr_cookie; 469 int32_t x, ys, yd, width, height; 470 471 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 472 x = ri->ri_xorigin; 473 ys = ri->ri_yorigin + ri->ri_font->fontheight * srcrow; 474 yd = ri->ri_yorigin + ri->ri_font->fontheight * dstrow; 475 width = ri->ri_emuwidth; 476 height = ri->ri_font->fontheight * nrows; 477 chipsfb_bitblt(sc, x, ys, x, yd, width, height, ROP_COPY); 478 } 479 } 480 481 static void 482 chipsfb_eraserows(void *cookie, int row, int nrows, long fillattr) 483 { 484 struct rasops_info *ri = cookie; 485 struct vcons_screen *scr = ri->ri_hw; 486 struct chipsfb_softc *sc = scr->scr_cookie; 487 int32_t x, y, width, height, fg, bg, ul; 488 489 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 490 rasops_unpack_attr(fillattr, &fg, &bg, &ul); 491 if ((row == 0) && (nrows == ri->ri_rows)) { 492 /* clear the whole screen */ 493 chipsfb_rectfill(sc, 0, 0, ri->ri_width, 494 ri->ri_height, ri->ri_devcmap[bg]); 495 } else { 496 x = ri->ri_xorigin; 497 y = ri->ri_yorigin + ri->ri_font->fontheight * row; 498 width = ri->ri_emuwidth; 499 height = ri->ri_font->fontheight * nrows; 500 chipsfb_rectfill(sc, x, y, width, height, 501 ri->ri_devcmap[bg]); 502 } 503 } 504 } 505 506 static void 507 chipsfb_bitblt(struct chipsfb_softc *sc, int xs, int ys, int xd, int yd, 508 int width, int height, uint8_t rop) 509 { 510 uint32_t src, dst, cmd = rop, stride, size; 511 512 cmd |= BLT_PAT_IS_SOLID; 513 514 /* we assume 8 bit for now */ 515 src = xs + ys * sc->linebytes; 516 dst = xd + yd * sc->linebytes; 517 518 if (xs < xd) { 519 /* right-to-left operation */ 520 cmd |= BLT_START_RIGHT; 521 src += width - 1; 522 dst += width - 1; 523 } 524 525 if (ys < yd) { 526 /* bottom-to-top operation */ 527 cmd |= BLT_START_BOTTOM; 528 src += (height - 1) * sc->linebytes; 529 dst += (height - 1) * sc->linebytes; 530 } 531 532 stride = (sc->linebytes << 16) | sc->linebytes; 533 size = (height << 16) | width; 534 535 chipsfb_wait_idle(sc); 536 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 537 chipsfb_write32(sc, CT_BLT_SRCADDR, src); 538 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 539 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 540 chipsfb_write32(sc, CT_BLT_SIZE, size); 541 #ifdef CHIPSFB_WAIT 542 chipsfb_wait_idle(sc); 543 #endif 544 } 545 546 static void 547 chipsfb_rectfill(struct chipsfb_softc *sc, int x, int y, int width, 548 int height, int colour) 549 { 550 uint32_t dst, cmd, stride, size; 551 552 cmd = BLT_PAT_IS_SOLID | BLT_PAT_IS_MONO | ROP_PAT; 553 554 /* we assume 8 bit for now */ 555 dst = x + y * sc->linebytes; 556 557 stride = (sc->linebytes << 16) | sc->linebytes; 558 size = (height << 16) | width; 559 560 chipsfb_wait_idle(sc); 561 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 562 chipsfb_write32(sc, CT_BLT_SRCADDR, dst); 563 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 564 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 565 chipsfb_write32(sc, CT_BLT_BG, colour); 566 chipsfb_write32(sc, CT_BLT_FG, colour); 567 chipsfb_write32(sc, CT_BLT_SIZE, size); 568 #ifdef CHIPSFB_WAIT 569 chipsfb_wait_idle(sc); 570 #endif 571 } 572 573 static void 574 chipsfb_putchar(void *cookie, int row, int col, u_int c, long attr) 575 { 576 struct rasops_info *ri = cookie; 577 struct wsdisplay_font *font = PICK_FONT(ri, c); 578 struct vcons_screen *scr = ri->ri_hw; 579 struct chipsfb_softc *sc = scr->scr_cookie; 580 581 if (__predict_false((unsigned int)row > ri->ri_rows || 582 (unsigned int)col > ri->ri_cols)) 583 return; 584 585 if (sc->sc_mode == WSDISPLAYIO_MODE_EMUL) { 586 uint8_t *data; 587 int fg, bg, uc; 588 int x, y, wi, he; 589 590 wi = font->fontwidth; 591 he = font->fontheight; 592 593 if (!CHAR_IN_FONT(c, font)) 594 return; 595 bg = (u_char)ri->ri_devcmap[(attr >> 16) & 0xf]; 596 fg = (u_char)ri->ri_devcmap[(attr >> 24) & 0xf]; 597 x = ri->ri_xorigin + col * wi; 598 y = ri->ri_yorigin + row * he; 599 if (c == 0x20) { 600 chipsfb_rectfill(sc, x, y, wi, he, bg); 601 } else { 602 uc = c - font->firstchar; 603 data = (uint8_t *)font->data + uc * 604 ri->ri_fontscale; 605 chipsfb_setup_mono(sc, x, y, wi, he, fg, bg); 606 chipsfb_feed(sc, font->stride * he, data); 607 } 608 } 609 } 610 611 static void 612 chipsfb_setup_mono(struct chipsfb_softc *sc, int xd, int yd, int width, 613 int height, uint32_t fg, uint32_t bg) 614 { 615 uint32_t dst, cmd, stride, size; 616 617 cmd = BLT_PAT_IS_SOLID | BLT_SRC_IS_CPU | BLT_SRC_IS_MONO | ROP_COPY; 618 619 /* we assume 8 bit for now */ 620 dst = xd + yd * sc->linebytes; 621 622 stride = (sc->linebytes << 16); 623 size = (height << 16) | width; 624 625 chipsfb_wait_idle(sc); 626 chipsfb_write32(sc, CT_BLT_STRIDE, stride); 627 chipsfb_write32(sc, CT_BLT_EXPCTL, MONO_SRC_ALIGN_BYTE); 628 chipsfb_write32(sc, CT_BLT_DSTADDR, dst); 629 chipsfb_write32(sc, CT_BLT_SRCADDR, 0); 630 chipsfb_write32(sc, CT_BLT_CONTROL, cmd); 631 chipsfb_write32(sc, CT_BLT_BG, bg); 632 chipsfb_write32(sc, CT_BLT_FG, fg); 633 chipsfb_write32(sc, CT_BLT_SIZE, size); 634 } 635 636 static void 637 chipsfb_feed(struct chipsfb_softc *sc, int count, uint8_t *data) 638 { 639 int i; 640 uint32_t latch = 0, bork; 641 int shift = 0; 642 643 for (i = 0; i < count; i++) { 644 bork = data[i]; 645 latch |= (bork << shift); 646 if (shift == 24) { 647 chipsfb_write32(sc, CT_OFF_DATA - CT_OFF_BITBLT, latch); 648 latch = 0; 649 shift = 0; 650 } else 651 shift += 8; 652 } 653 654 if (shift != 0) { 655 chipsfb_write32(sc, CT_OFF_DATA - CT_OFF_BITBLT, latch); 656 } 657 658 /* apparently the chip wants 64bit-aligned data or it won't go idle */ 659 if ((count + 3) & 0x04) { 660 chipsfb_write32(sc, CT_OFF_DATA - CT_OFF_BITBLT, 0); 661 } 662 #ifdef CHIPSFB_WAIT 663 chipsfb_wait_idle(sc); 664 #endif 665 } 666 667 #if 0 668 static void 669 chipsfb_showpal(struct chipsfb_softc *sc) 670 { 671 int i, x = 0; 672 673 for (i = 0; i < 16; i++) { 674 chipsfb_rectfill(sc, x, 0, 64, 64, i); 675 x += 64; 676 } 677 } 678 #endif 679 680 #if 0 681 static int 682 chipsfb_allocattr(void *cookie, int fg, int bg, int flags, long *attrp) 683 { 684 685 return 0; 686 } 687 #endif 688 689 static void 690 chipsfb_restore_palette(struct chipsfb_softc *sc) 691 { 692 int i; 693 694 for (i = 0; i < 256; i++) { 695 chipsfb_putpalreg(sc, 696 i, 697 sc->sc_cmap_red[i], 698 sc->sc_cmap_green[i], 699 sc->sc_cmap_blue[i]); 700 } 701 } 702 703 /* 704 * wsdisplay_accessops 705 */ 706 707 static int 708 chipsfb_ioctl(void *v, void *vs, u_long cmd, void *data, int flag, 709 struct lwp *l) 710 { 711 struct vcons_data *vd = v; 712 struct chipsfb_softc *sc = vd->cookie; 713 struct wsdisplay_fbinfo *wdf; 714 struct vcons_screen *ms = vd->active; 715 716 switch (cmd) { 717 case WSDISPLAYIO_GTYPE: 718 *(u_int *)data = WSDISPLAY_TYPE_PCIMISC; 719 return 0; 720 721 case WSDISPLAYIO_GINFO: 722 wdf = (void *)data; 723 wdf->height = ms->scr_ri.ri_height; 724 wdf->width = ms->scr_ri.ri_width; 725 wdf->depth = ms->scr_ri.ri_depth; 726 wdf->cmsize = 256; 727 return 0; 728 729 case WSDISPLAYIO_GETCMAP: 730 return chipsfb_getcmap(sc, 731 (struct wsdisplay_cmap *)data); 732 733 case WSDISPLAYIO_PUTCMAP: 734 return chipsfb_putcmap(sc, 735 (struct wsdisplay_cmap *)data); 736 737 738 case WSDISPLAYIO_SMODE: { 739 int new_mode = *(int*)data; 740 if (new_mode != sc->sc_mode) { 741 sc->sc_mode = new_mode; 742 if(new_mode == WSDISPLAYIO_MODE_EMUL) { 743 chipsfb_restore_palette(sc); 744 vcons_redraw_screen(ms); 745 } 746 } 747 } 748 return 0; 749 default: 750 if (sc->sc_ioctl != NULL) 751 return sc->sc_ioctl(v, vs, cmd, data, flag, l); 752 } 753 return EPASSTHROUGH; 754 } 755 756 static paddr_t 757 chipsfb_mmap(void *v, void *vs, off_t offset, int prot) 758 { 759 struct vcons_data *vd = v; 760 struct chipsfb_softc *sc = vd->cookie; 761 paddr_t pa; 762 763 if (sc->sc_mmap != NULL) 764 return sc->sc_mmap(v, vs, offset, prot); 765 766 /* 'regular' framebuffer mmap()ing */ 767 if (offset < sc->memsize) { 768 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 769 BUS_SPACE_MAP_LINEAR | BUS_SPACE_MAP_PREFETCHABLE); 770 return pa; 771 } 772 773 /* 774 * restrict all other mappings to processes with superuser privileges 775 * or the kernel itself 776 */ 777 if (kauth_authorize_machdep(kauth_cred_get(), KAUTH_MACHDEP_UNMANAGEDMEM, 778 NULL, NULL, NULL, NULL) != 0) { 779 aprint_normal_dev(sc->sc_dev, "mmap() rejected.\n"); 780 return -1; 781 } 782 783 if ((offset >= sc->sc_fb) && (offset < (sc->sc_fb + sc->sc_fbsize))) { 784 pa = bus_space_mmap(sc->sc_memt, offset, 0, prot, 785 BUS_SPACE_MAP_LINEAR); 786 return pa; 787 } 788 789 #ifdef PCI_MAGIC_IO_RANGE 790 /* allow mapping of IO space */ 791 if ((offset >= PCI_MAGIC_IO_RANGE) && 792 (offset < PCI_MAGIC_IO_RANGE + 0x10000)) { 793 pa = bus_space_mmap(sc->sc_iot, offset - PCI_MAGIC_IO_RANGE, 794 0, prot, BUS_SPACE_MAP_LINEAR); 795 return pa; 796 } 797 #endif 798 799 return -1; 800 } 801 802 static void 803 chipsfb_init_screen(void *cookie, struct vcons_screen *scr, 804 int existing, long *defattr) 805 { 806 struct chipsfb_softc *sc = cookie; 807 struct rasops_info *ri = &scr->scr_ri; 808 809 ri->ri_depth = sc->bits_per_pixel; 810 ri->ri_width = sc->width; 811 ri->ri_height = sc->height; 812 ri->ri_stride = sc->width; 813 ri->ri_flg = RI_CENTER | RI_FULLCLEAR; 814 815 ri->ri_bits = bus_space_vaddr(sc->sc_memt, sc->sc_fbh); 816 817 #ifdef CHIPSFB_DEBUG 818 aprint_debug("addr: %08lx\n", (ulong)ri->ri_bits); 819 #endif 820 if (existing) { 821 ri->ri_flg |= RI_CLEAR; 822 } 823 824 rasops_init(ri, 0, 0); 825 ri->ri_caps = WSSCREEN_WSCOLORS; 826 827 rasops_reconfig(ri, sc->height / ri->ri_font->fontheight, 828 sc->width / ri->ri_font->fontwidth); 829 830 ri->ri_hw = scr; 831 ri->ri_ops.copyrows = chipsfb_copyrows; 832 ri->ri_ops.copycols = chipsfb_copycols; 833 ri->ri_ops.eraserows = chipsfb_eraserows; 834 ri->ri_ops.erasecols = chipsfb_erasecols; 835 ri->ri_ops.cursor = chipsfb_cursor; 836 ri->ri_ops.putchar = chipsfb_putchar; 837 } 838 839 #if 0 840 int 841 chipsfb_load_font(void *v, void *cookie, struct wsdisplay_font *data) 842 { 843 844 return 0; 845 } 846 #endif 847 848 static void 849 chipsfb_init(struct chipsfb_softc *sc) 850 { 851 852 chipsfb_wait_idle(sc); 853 854 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_IO_CONTROL, 855 ENABLE_CRTC_EXT | ENABLE_ATTR_EXT); 856 chipsfb_write_indexed(sc, CT_CONF_INDEX, XR_ADDR_MAPPING, 857 ENABLE_LINEAR); 858 859 /* setup the blitter */ 860 } 861 862 uint32_t 863 chipsfb_probe_vram(struct chipsfb_softc *sc) 864 { 865 uint32_t ofs = 0x00080000; /* 512kB */ 866 867 /* 868 * advance in 0.5MB steps, see if we can read back what we wrote and 869 * if what we wrote to 0 is left untouched. Max. fb size is 4MB so 870 * we voluntarily stop there. 871 */ 872 bus_space_write_4(sc->sc_memt, sc->sc_fbh, 0, 0xf0f0f0f0); 873 bus_space_write_4(sc->sc_memt, sc->sc_fbh, ofs, 0x0f0f0f0f); 874 while ((bus_space_read_4(sc->sc_memt, sc->sc_fbh, 0) == 0xf0f0f0f0) && 875 (bus_space_read_4(sc->sc_memt, sc->sc_fbh, ofs) == 0x0f0f0f0f) && 876 (ofs < 0x00400000)) { 877 878 ofs += 0x00080000; 879 bus_space_write_4(sc->sc_memt, sc->sc_fbh, ofs, 0x0f0f0f0f); 880 } 881 882 return ofs; 883 } 884
Indexes created Thu Sep 25 16:09:42 GMT 2025