Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/powerpc/ofw/ofw_syscons.c
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1 /*- 2 * Copyright (c) 2003 Peter Grehan 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include <sys/param.h> 31 #include <sys/systm.h> 32 #include <sys/module.h> 33 #include <sys/bus.h> 34 #include <sys/kernel.h> 35 #include <sys/sysctl.h> 36 #include <sys/limits.h> 37 #include <sys/conf.h> 38 #include <sys/cons.h> 39 #include <sys/proc.h> 40 #include <sys/fcntl.h> 41 #include <sys/malloc.h> 42 #include <sys/fbio.h> 43 #include <sys/consio.h> 44 45 #include <machine/bus.h> 46 #include <machine/sc_machdep.h> 47 48 #include <sys/rman.h> 49 50 #include <dev/fb/fbreg.h> 51 #include <dev/syscons/syscons.h> 52 53 #include <dev/ofw/openfirm.h> 54 #include <dev/ofw/ofw_bus.h> 55 #include <dev/ofw/ofw_pci.h> 56 #include <powerpc/ofw/ofw_syscons.h> 57 58 static int ofwfb_ignore_mmap_checks; 59 SYSCTL_NODE(_hw, OID_AUTO, ofwfb, CTLFLAG_RD, 0, "ofwfb"); 60 SYSCTL_INT(_hw_ofwfb, OID_AUTO, relax_mmap, CTLFLAG_RW, 61 &ofwfb_ignore_mmap_checks, 0, "relax mmap bounds checking"); 62 63 extern u_char dflt_font_16[]; 64 extern u_char dflt_font_14[]; 65 extern u_char dflt_font_8[]; 66 67 static int ofwfb_configure(int flags); 68 69 static vi_probe_t ofwfb_probe; 70 static vi_init_t ofwfb_init; 71 static vi_get_info_t ofwfb_get_info; 72 static vi_query_mode_t ofwfb_query_mode; 73 static vi_set_mode_t ofwfb_set_mode; 74 static vi_save_font_t ofwfb_save_font; 75 static vi_load_font_t ofwfb_load_font; 76 static vi_show_font_t ofwfb_show_font; 77 static vi_save_palette_t ofwfb_save_palette; 78 static vi_load_palette_t ofwfb_load_palette; 79 static vi_set_border_t ofwfb_set_border; 80 static vi_save_state_t ofwfb_save_state; 81 static vi_load_state_t ofwfb_load_state; 82 static vi_set_win_org_t ofwfb_set_win_org; 83 static vi_read_hw_cursor_t ofwfb_read_hw_cursor; 84 static vi_set_hw_cursor_t ofwfb_set_hw_cursor; 85 static vi_set_hw_cursor_shape_t ofwfb_set_hw_cursor_shape; 86 static vi_blank_display_t ofwfb_blank_display; 87 static vi_mmap_t ofwfb_mmap; 88 static vi_ioctl_t ofwfb_ioctl; 89 static vi_clear_t ofwfb_clear; 90 static vi_fill_rect_t ofwfb_fill_rect; 91 static vi_bitblt_t ofwfb_bitblt; 92 static vi_diag_t ofwfb_diag; 93 static vi_save_cursor_palette_t ofwfb_save_cursor_palette; 94 static vi_load_cursor_palette_t ofwfb_load_cursor_palette; 95 static vi_copy_t ofwfb_copy; 96 static vi_putp_t ofwfb_putp; 97 static vi_putc_t ofwfb_putc; 98 static vi_puts_t ofwfb_puts; 99 static vi_putm_t ofwfb_putm; 100 101 static video_switch_t ofwfbvidsw = { 102 .probe = ofwfb_probe, 103 .init = ofwfb_init, 104 .get_info = ofwfb_get_info, 105 .query_mode = ofwfb_query_mode, 106 .set_mode = ofwfb_set_mode, 107 .save_font = ofwfb_save_font, 108 .load_font = ofwfb_load_font, 109 .show_font = ofwfb_show_font, 110 .save_palette = ofwfb_save_palette, 111 .load_palette = ofwfb_load_palette, 112 .set_border = ofwfb_set_border, 113 .save_state = ofwfb_save_state, 114 .load_state = ofwfb_load_state, 115 .set_win_org = ofwfb_set_win_org, 116 .read_hw_cursor = ofwfb_read_hw_cursor, 117 .set_hw_cursor = ofwfb_set_hw_cursor, 118 .set_hw_cursor_shape = ofwfb_set_hw_cursor_shape, 119 .blank_display = ofwfb_blank_display, 120 .mmap = ofwfb_mmap, 121 .ioctl = ofwfb_ioctl, 122 .clear = ofwfb_clear, 123 .fill_rect = ofwfb_fill_rect, 124 .bitblt = ofwfb_bitblt, 125 .diag = ofwfb_diag, 126 .save_cursor_palette = ofwfb_save_cursor_palette, 127 .load_cursor_palette = ofwfb_load_cursor_palette, 128 .copy = ofwfb_copy, 129 .putp = ofwfb_putp, 130 .putc = ofwfb_putc, 131 .puts = ofwfb_puts, 132 .putm = ofwfb_putm, 133 }; 134 135 /* 136 * bitmap depth-specific routines 137 */ 138 static vi_blank_display_t ofwfb_blank_display8; 139 static vi_putc_t ofwfb_putc8; 140 static vi_putm_t ofwfb_putm8; 141 static vi_set_border_t ofwfb_set_border8; 142 143 static vi_blank_display_t ofwfb_blank_display32; 144 static vi_putc_t ofwfb_putc32; 145 static vi_putm_t ofwfb_putm32; 146 static vi_set_border_t ofwfb_set_border32; 147 148 VIDEO_DRIVER(ofwfb, ofwfbvidsw, ofwfb_configure); 149 150 extern sc_rndr_sw_t txtrndrsw; 151 RENDERER(ofwfb, 0, txtrndrsw, gfb_set); 152 153 RENDERER_MODULE(ofwfb, gfb_set); 154 155 /* 156 * Define the iso6429-1983 colormap 157 */ 158 static struct { 159 uint8_t red; 160 uint8_t green; 161 uint8_t blue; 162 } ofwfb_cmap[16] = { /* # R G B Color */ 163 /* - - - - ----- */ 164 { 0x00, 0x00, 0x00 }, /* 0 0 0 0 Black */ 165 { 0x00, 0x00, 0xaa }, /* 1 0 0 2/3 Blue */ 166 { 0x00, 0xaa, 0x00 }, /* 2 0 2/3 0 Green */ 167 { 0x00, 0xaa, 0xaa }, /* 3 0 2/3 2/3 Cyan */ 168 { 0xaa, 0x00, 0x00 }, /* 4 2/3 0 0 Red */ 169 { 0xaa, 0x00, 0xaa }, /* 5 2/3 0 2/3 Magenta */ 170 { 0xaa, 0x55, 0x00 }, /* 6 2/3 1/3 0 Brown */ 171 { 0xaa, 0xaa, 0xaa }, /* 7 2/3 2/3 2/3 White */ 172 { 0x55, 0x55, 0x55 }, /* 8 1/3 1/3 1/3 Gray */ 173 { 0x55, 0x55, 0xff }, /* 9 1/3 1/3 1 Bright Blue */ 174 { 0x55, 0xff, 0x55 }, /* 10 1/3 1 1/3 Bright Green */ 175 { 0x55, 0xff, 0xff }, /* 11 1/3 1 1 Bright Cyan */ 176 { 0xff, 0x55, 0x55 }, /* 12 1 1/3 1/3 Bright Red */ 177 { 0xff, 0x55, 0xff }, /* 13 1 1/3 1 Bright Magenta */ 178 { 0xff, 0xff, 0x80 }, /* 14 1 1 1/3 Bright Yellow */ 179 { 0xff, 0xff, 0xff } /* 15 1 1 1 Bright White */ 180 }; 181 182 #define TODO printf("%s: unimplemented\n", __func__) 183 184 static u_int16_t ofwfb_static_window[ROW*COL]; 185 186 static struct ofwfb_softc ofwfb_softc; 187 188 static __inline int 189 ofwfb_background(uint8_t attr) 190 { 191 return (attr >> 4); 192 } 193 194 static __inline int 195 ofwfb_foreground(uint8_t attr) 196 { 197 return (attr & 0x0f); 198 } 199 200 static u_int 201 ofwfb_pix32(int attr) 202 { 203 u_int retval; 204 205 retval = (ofwfb_cmap[attr].blue << 16) | 206 (ofwfb_cmap[attr].green << 8) | 207 ofwfb_cmap[attr].red; 208 209 return (retval); 210 } 211 212 static int 213 ofwfb_configure(int flags) 214 { 215 struct ofwfb_softc *sc; 216 phandle_t chosen; 217 ihandle_t stdout; 218 phandle_t node; 219 bus_addr_t fb_phys; 220 int depth; 221 int disable; 222 int len; 223 char type[16]; 224 static int done = 0; 225 226 disable = 0; 227 TUNABLE_INT_FETCH("hw.syscons.disable", &disable); 228 if (disable != 0) 229 return (0); 230 231 if (done != 0) 232 return (0); 233 done = 1; 234 235 sc = &ofwfb_softc; 236 237 chosen = OF_finddevice("/chosen"); 238 OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)); 239 node = OF_instance_to_package(stdout); 240 if (node == -1) { 241 /* 242 * The "/chosen/stdout" does not exist try 243 * using "screen" directly. 244 */ 245 node = OF_finddevice("screen"); 246 } 247 OF_getprop(node, "device_type", type, sizeof(type)); 248 if (strcmp(type, "display") != 0) 249 return (0); 250 251 /* Only support 8 and 32-bit framebuffers */ 252 OF_getprop(node, "depth", &depth, sizeof(depth)); 253 if (depth == 8) { 254 sc->sc_blank = ofwfb_blank_display8; 255 sc->sc_putc = ofwfb_putc8; 256 sc->sc_putm = ofwfb_putm8; 257 sc->sc_set_border = ofwfb_set_border8; 258 } else if (depth == 32) { 259 sc->sc_blank = ofwfb_blank_display32; 260 sc->sc_putc = ofwfb_putc32; 261 sc->sc_putm = ofwfb_putm32; 262 sc->sc_set_border = ofwfb_set_border32; 263 } else 264 return (0); 265 266 sc->sc_depth = depth; 267 sc->sc_node = node; 268 sc->sc_console = 1; 269 OF_getprop(node, "height", &sc->sc_height, sizeof(sc->sc_height)); 270 OF_getprop(node, "width", &sc->sc_width, sizeof(sc->sc_width)); 271 OF_getprop(node, "linebytes", &sc->sc_stride, sizeof(sc->sc_stride)); 272 273 /* 274 * Grab the physical address of the framebuffer, and then map it 275 * into our memory space. If the MMU is not yet up, it will be 276 * remapped for us when relocation turns on. 277 * 278 * XXX We assume #address-cells is 1 at this point. 279 */ 280 OF_getprop(node, "address", &fb_phys, sizeof(fb_phys)); 281 282 bus_space_map(&bs_be_tag, fb_phys, sc->sc_height * sc->sc_stride, 283 0, &sc->sc_addr); 284 285 /* 286 * Get the PCI addresses of the adapter. The node may be the 287 * child of the PCI device: in that case, try the parent for 288 * the assigned-addresses property. 289 */ 290 len = OF_getprop(node, "assigned-addresses", sc->sc_pciaddrs, 291 sizeof(sc->sc_pciaddrs)); 292 if (len == -1) { 293 len = OF_getprop(OF_parent(node), "assigned-addresses", 294 sc->sc_pciaddrs, sizeof(sc->sc_pciaddrs)); 295 } 296 297 if (len != -1) { 298 sc->sc_num_pciaddrs = len / sizeof(struct ofw_pci_register); 299 } 300 301 ofwfb_init(0, &sc->sc_va, 0); 302 303 return (0); 304 } 305 306 static int 307 ofwfb_probe(int unit, video_adapter_t **adp, void *arg, int flags) 308 { 309 TODO; 310 return (0); 311 } 312 313 static int 314 ofwfb_init(int unit, video_adapter_t *adp, int flags) 315 { 316 struct ofwfb_softc *sc; 317 video_info_t *vi; 318 int cborder; 319 int font_height; 320 321 sc = (struct ofwfb_softc *)adp; 322 vi = &adp->va_info; 323 324 vid_init_struct(adp, "ofwfb", -1, unit); 325 326 /* The default font size can be overridden by loader */ 327 font_height = 16; 328 TUNABLE_INT_FETCH("hw.syscons.fsize", &font_height); 329 if (font_height == 8) { 330 sc->sc_font = dflt_font_8; 331 sc->sc_font_height = 8; 332 } else if (font_height == 14) { 333 sc->sc_font = dflt_font_14; 334 sc->sc_font_height = 14; 335 } else { 336 /* default is 8x16 */ 337 sc->sc_font = dflt_font_16; 338 sc->sc_font_height = 16; 339 } 340 341 /* The user can set a border in chars - default is 1 char width */ 342 cborder = 1; 343 TUNABLE_INT_FETCH("hw.syscons.border", &cborder); 344 345 vi->vi_cheight = sc->sc_font_height; 346 vi->vi_width = sc->sc_width/8 - 2*cborder; 347 vi->vi_height = sc->sc_height/sc->sc_font_height - 2*cborder; 348 vi->vi_cwidth = 8; 349 350 /* 351 * Clamp width/height to syscons maximums 352 */ 353 if (vi->vi_width > COL) 354 vi->vi_width = COL; 355 if (vi->vi_height > ROW) 356 vi->vi_height = ROW; 357 358 sc->sc_xmargin = (sc->sc_width - (vi->vi_width * vi->vi_cwidth)) / 2; 359 sc->sc_ymargin = (sc->sc_height - (vi->vi_height * vi->vi_cheight))/2; 360 361 /* 362 * Avoid huge amounts of conditional code in syscons by 363 * defining a dummy h/w text display buffer. 364 */ 365 adp->va_window = (vm_offset_t) ofwfb_static_window; 366 367 /* 368 * Enable future font-loading and flag color support, as well as 369 * adding V_ADP_MODECHANGE so that we ofwfb_set_mode() gets called 370 * when the X server shuts down. This enables us to get the console 371 * back when X disappears. 372 */ 373 adp->va_flags |= V_ADP_FONT | V_ADP_COLOR | V_ADP_MODECHANGE; 374 375 ofwfb_set_mode(&sc->sc_va, 0); 376 377 vid_register(&sc->sc_va); 378 379 return (0); 380 } 381 382 static int 383 ofwfb_get_info(video_adapter_t *adp, int mode, video_info_t *info) 384 { 385 bcopy(&adp->va_info, info, sizeof(*info)); 386 return (0); 387 } 388 389 static int 390 ofwfb_query_mode(video_adapter_t *adp, video_info_t *info) 391 { 392 TODO; 393 return (0); 394 } 395 396 static int 397 ofwfb_set_mode(video_adapter_t *adp, int mode) 398 { 399 struct ofwfb_softc *sc; 400 char name[64]; 401 ihandle_t ih; 402 int i, retval; 403 404 sc = (struct ofwfb_softc *)adp; 405 406 /* 407 * Open the display device, which will initialize it. 408 */ 409 410 memset(name, 0, sizeof(name)); 411 OF_package_to_path(sc->sc_node, name, sizeof(name)); 412 ih = OF_open(name); 413 414 if (sc->sc_depth == 8) { 415 /* 416 * Install the ISO6429 colormap - older OFW systems 417 * don't do this by default 418 */ 419 for (i = 0; i < 16; i++) { 420 OF_call_method("color!", ih, 4, 1, 421 ofwfb_cmap[i].red, 422 ofwfb_cmap[i].green, 423 ofwfb_cmap[i].blue, 424 i, 425 &retval); 426 } 427 } 428 429 ofwfb_blank_display(&sc->sc_va, V_DISPLAY_ON); 430 431 return (0); 432 } 433 434 static int 435 ofwfb_save_font(video_adapter_t *adp, int page, int size, int width, 436 u_char *data, int c, int count) 437 { 438 TODO; 439 return (0); 440 } 441 442 static int 443 ofwfb_load_font(video_adapter_t *adp, int page, int size, int width, 444 u_char *data, int c, int count) 445 { 446 struct ofwfb_softc *sc; 447 448 sc = (struct ofwfb_softc *)adp; 449 450 /* 451 * syscons code has already determined that current width/height 452 * are unchanged for this new font 453 */ 454 sc->sc_font = data; 455 return (0); 456 } 457 458 static int 459 ofwfb_show_font(video_adapter_t *adp, int page) 460 { 461 462 return (0); 463 } 464 465 static int 466 ofwfb_save_palette(video_adapter_t *adp, u_char *palette) 467 { 468 /* TODO; */ 469 return (0); 470 } 471 472 static int 473 ofwfb_load_palette(video_adapter_t *adp, u_char *palette) 474 { 475 /* TODO; */ 476 return (0); 477 } 478 479 static int 480 ofwfb_set_border8(video_adapter_t *adp, int border) 481 { 482 struct ofwfb_softc *sc; 483 int i, j; 484 uint8_t *addr; 485 uint8_t bground; 486 487 sc = (struct ofwfb_softc *)adp; 488 489 bground = ofwfb_background(border); 490 491 /* Set top margin */ 492 addr = (uint8_t *) sc->sc_addr; 493 for (i = 0; i < sc->sc_ymargin; i++) { 494 for (j = 0; j < sc->sc_width; j++) { 495 *(addr + j) = bground; 496 } 497 addr += sc->sc_stride; 498 } 499 500 /* bottom margin */ 501 addr = (uint8_t *) sc->sc_addr + (sc->sc_height - sc->sc_ymargin)*sc->sc_stride; 502 for (i = 0; i < sc->sc_ymargin; i++) { 503 for (j = 0; j < sc->sc_width; j++) { 504 *(addr + j) = bground; 505 } 506 addr += sc->sc_stride; 507 } 508 509 /* remaining left and right borders */ 510 addr = (uint8_t *) sc->sc_addr + sc->sc_ymargin*sc->sc_stride; 511 for (i = 0; i < sc->sc_height - 2*sc->sc_xmargin; i++) { 512 for (j = 0; j < sc->sc_xmargin; j++) { 513 *(addr + j) = bground; 514 *(addr + j + sc->sc_width - sc->sc_xmargin) = bground; 515 } 516 addr += sc->sc_stride; 517 } 518 519 return (0); 520 } 521 522 static int 523 ofwfb_set_border32(video_adapter_t *adp, int border) 524 { 525 /* XXX Be lazy for now and blank entire screen */ 526 return (ofwfb_blank_display32(adp, border)); 527 } 528 529 static int 530 ofwfb_set_border(video_adapter_t *adp, int border) 531 { 532 struct ofwfb_softc *sc; 533 534 sc = (struct ofwfb_softc *)adp; 535 536 return ((*sc->sc_set_border)(adp, border)); 537 } 538 539 static int 540 ofwfb_save_state(video_adapter_t *adp, void *p, size_t size) 541 { 542 TODO; 543 return (0); 544 } 545 546 static int 547 ofwfb_load_state(video_adapter_t *adp, void *p) 548 { 549 TODO; 550 return (0); 551 } 552 553 static int 554 ofwfb_set_win_org(video_adapter_t *adp, off_t offset) 555 { 556 TODO; 557 return (0); 558 } 559 560 static int 561 ofwfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 562 { 563 *col = 0; 564 *row = 0; 565 566 return (0); 567 } 568 569 static int 570 ofwfb_set_hw_cursor(video_adapter_t *adp, int col, int row) 571 { 572 573 return (0); 574 } 575 576 static int 577 ofwfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 578 int celsize, int blink) 579 { 580 return (0); 581 } 582 583 static int 584 ofwfb_blank_display8(video_adapter_t *adp, int mode) 585 { 586 struct ofwfb_softc *sc; 587 int i; 588 uint8_t *addr; 589 590 sc = (struct ofwfb_softc *)adp; 591 addr = (uint8_t *) sc->sc_addr; 592 593 /* Could be done a lot faster e.g. 32-bits, or Altivec'd */ 594 for (i = 0; i < sc->sc_stride*sc->sc_height; i++) 595 *(addr + i) = ofwfb_background(SC_NORM_ATTR); 596 597 return (0); 598 } 599 600 static int 601 ofwfb_blank_display32(video_adapter_t *adp, int mode) 602 { 603 struct ofwfb_softc *sc; 604 int i; 605 uint32_t *addr; 606 607 sc = (struct ofwfb_softc *)adp; 608 addr = (uint32_t *) sc->sc_addr; 609 610 for (i = 0; i < (sc->sc_stride/4)*sc->sc_height; i++) 611 *(addr + i) = ofwfb_pix32(ofwfb_background(SC_NORM_ATTR)); 612 613 return (0); 614 } 615 616 static int 617 ofwfb_blank_display(video_adapter_t *adp, int mode) 618 { 619 struct ofwfb_softc *sc; 620 621 sc = (struct ofwfb_softc *)adp; 622 623 return ((*sc->sc_blank)(adp, mode)); 624 } 625 626 static int 627 ofwfb_mmap(video_adapter_t *adp, vm_offset_t offset, vm_paddr_t *paddr, 628 int prot) 629 { 630 struct ofwfb_softc *sc; 631 int i; 632 633 sc = (struct ofwfb_softc *)adp; 634 635 if (sc->sc_num_pciaddrs == 0) 636 return (ENOMEM); 637 638 /* 639 * Hack for Radeon... 640 */ 641 if (ofwfb_ignore_mmap_checks) { 642 *paddr = offset; 643 return (0); 644 } 645 646 /* 647 * Make sure the requested address lies within the PCI device's assigned addrs 648 */ 649 for (i = 0; i < sc->sc_num_pciaddrs; i++) 650 if (offset >= sc->sc_pciaddrs[i].phys_lo && 651 offset < (sc->sc_pciaddrs[i].phys_lo + sc->sc_pciaddrs[i].size_lo)) { 652 *paddr = offset; 653 return (0); 654 } 655 656 /* 657 * This might be a legacy VGA mem request: if so, just point it at the 658 * framebuffer, since it shouldn't be touched 659 */ 660 if (offset < sc->sc_stride*sc->sc_height) { 661 *paddr = sc->sc_addr + offset; 662 return (0); 663 } 664 665 return (EINVAL); 666 } 667 668 static int 669 ofwfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data) 670 { 671 672 return (0); 673 } 674 675 static int 676 ofwfb_clear(video_adapter_t *adp) 677 { 678 TODO; 679 return (0); 680 } 681 682 static int 683 ofwfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 684 { 685 TODO; 686 return (0); 687 } 688 689 static int 690 ofwfb_bitblt(video_adapter_t *adp, ...) 691 { 692 TODO; 693 return (0); 694 } 695 696 static int 697 ofwfb_diag(video_adapter_t *adp, int level) 698 { 699 TODO; 700 return (0); 701 } 702 703 static int 704 ofwfb_save_cursor_palette(video_adapter_t *adp, u_char *palette) 705 { 706 TODO; 707 return (0); 708 } 709 710 static int 711 ofwfb_load_cursor_palette(video_adapter_t *adp, u_char *palette) 712 { 713 TODO; 714 return (0); 715 } 716 717 static int 718 ofwfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n) 719 { 720 TODO; 721 return (0); 722 } 723 724 static int 725 ofwfb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a, 726 int size, int bpp, int bit_ltor, int byte_ltor) 727 { 728 TODO; 729 return (0); 730 } 731 732 static int 733 ofwfb_putc8(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a) 734 { 735 struct ofwfb_softc *sc; 736 int row; 737 int col; 738 int i; 739 uint32_t *addr; 740 u_char *p, fg, bg; 741 union { 742 uint32_t l; 743 uint8_t c[4]; 744 } ch1, ch2; 745 746 747 sc = (struct ofwfb_softc *)adp; 748 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight; 749 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth; 750 p = sc->sc_font + c*sc->sc_font_height; 751 addr = (u_int32_t *)((int)sc->sc_addr 752 + (row + sc->sc_ymargin)*sc->sc_stride 753 + col + sc->sc_xmargin); 754 755 fg = ofwfb_foreground(a); 756 bg = ofwfb_background(a); 757 758 for (i = 0; i < sc->sc_font_height; i++) { 759 u_char fline = p[i]; 760 761 /* 762 * Assume that there is more background than foreground 763 * in characters and init accordingly 764 */ 765 ch1.l = ch2.l = (bg << 24) | (bg << 16) | (bg << 8) | bg; 766 767 /* 768 * Calculate 2 x 4-chars at a time, and then 769 * write these out. 770 */ 771 if (fline & 0x80) ch1.c[0] = fg; 772 if (fline & 0x40) ch1.c[1] = fg; 773 if (fline & 0x20) ch1.c[2] = fg; 774 if (fline & 0x10) ch1.c[3] = fg; 775 776 if (fline & 0x08) ch2.c[0] = fg; 777 if (fline & 0x04) ch2.c[1] = fg; 778 if (fline & 0x02) ch2.c[2] = fg; 779 if (fline & 0x01) ch2.c[3] = fg; 780 781 addr[0] = ch1.l; 782 addr[1] = ch2.l; 783 addr += (sc->sc_stride / sizeof(u_int32_t)); 784 } 785 786 return (0); 787 } 788 789 static int 790 ofwfb_putc32(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a) 791 { 792 struct ofwfb_softc *sc; 793 int row; 794 int col; 795 int i, j, k; 796 uint32_t *addr; 797 u_char *p; 798 799 sc = (struct ofwfb_softc *)adp; 800 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight; 801 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth; 802 p = sc->sc_font + c*sc->sc_font_height; 803 addr = (uint32_t *)sc->sc_addr 804 + (row + sc->sc_ymargin)*(sc->sc_stride/4) 805 + col + sc->sc_xmargin; 806 807 for (i = 0; i < sc->sc_font_height; i++) { 808 for (j = 0, k = 7; j < 8; j++, k--) { 809 if ((p[i] & (1 << k)) == 0) 810 *(addr + j) = ofwfb_pix32(ofwfb_background(a)); 811 else 812 *(addr + j) = ofwfb_pix32(ofwfb_foreground(a)); 813 } 814 addr += (sc->sc_stride/4); 815 } 816 817 return (0); 818 } 819 820 static int 821 ofwfb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a) 822 { 823 struct ofwfb_softc *sc; 824 825 sc = (struct ofwfb_softc *)adp; 826 827 return ((*sc->sc_putc)(adp, off, c, a)); 828 } 829 830 static int 831 ofwfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len) 832 { 833 int i; 834 835 for (i = 0; i < len; i++) { 836 ofwfb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8); 837 } 838 return (0); 839 } 840 841 static int 842 ofwfb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image, 843 uint32_t pixel_mask, int size, int width) 844 { 845 struct ofwfb_softc *sc; 846 847 sc = (struct ofwfb_softc *)adp; 848 849 return ((*sc->sc_putm)(adp, x, y, pixel_image, pixel_mask, size, 850 width)); 851 } 852 853 static int 854 ofwfb_putm8(video_adapter_t *adp, int x, int y, uint8_t *pixel_image, 855 uint32_t pixel_mask, int size, int width) 856 { 857 struct ofwfb_softc *sc; 858 int i, j, k; 859 uint8_t *addr; 860 u_char fg, bg; 861 862 sc = (struct ofwfb_softc *)adp; 863 addr = (u_int8_t *)((int)sc->sc_addr 864 + (y + sc->sc_ymargin)*sc->sc_stride 865 + x + sc->sc_xmargin); 866 867 fg = ofwfb_foreground(SC_NORM_ATTR); 868 bg = ofwfb_background(SC_NORM_ATTR); 869 870 for (i = 0; i < size && i+y < sc->sc_height - 2*sc->sc_ymargin; i++) { 871 /* 872 * Calculate 2 x 4-chars at a time, and then 873 * write these out. 874 */ 875 for (j = 0, k = width; j < 8; j++, k--) { 876 if (x + j >= sc->sc_width - 2*sc->sc_xmargin) 877 continue; 878 879 if (pixel_image[i] & (1 << k)) 880 addr[j] = (addr[j] == fg) ? bg : fg; 881 } 882 883 addr += (sc->sc_stride / sizeof(u_int8_t)); 884 } 885 886 return (0); 887 } 888 889 static int 890 ofwfb_putm32(video_adapter_t *adp, int x, int y, uint8_t *pixel_image, 891 uint32_t pixel_mask, int size, int width) 892 { 893 struct ofwfb_softc *sc; 894 int i, j, k; 895 uint32_t fg, bg; 896 uint32_t *addr; 897 898 sc = (struct ofwfb_softc *)adp; 899 addr = (uint32_t *)sc->sc_addr 900 + (y + sc->sc_ymargin)*(sc->sc_stride/4) 901 + x + sc->sc_xmargin; 902 903 fg = ofwfb_pix32(ofwfb_foreground(SC_NORM_ATTR)); 904 bg = ofwfb_pix32(ofwfb_background(SC_NORM_ATTR)); 905 906 for (i = 0; i < size && i+y < sc->sc_height - 2*sc->sc_ymargin; i++) { 907 for (j = 0, k = width; j < 8; j++, k--) { 908 if (x + j >= sc->sc_width - 2*sc->sc_xmargin) 909 continue; 910 911 if (pixel_image[i] & (1 << k)) 912 *(addr + j) = (*(addr + j) == fg) ? bg : fg; 913 } 914 addr += (sc->sc_stride/4); 915 } 916 917 return (0); 918 } 919 920 /* 921 * Define the syscons nexus device attachment 922 */ 923 static void 924 ofwfb_scidentify(driver_t *driver, device_t parent) 925 { 926 device_t child; 927 928 /* 929 * Add with a priority guaranteed to make it last on 930 * the device list 931 */ 932 child = BUS_ADD_CHILD(parent, INT_MAX, SC_DRIVER_NAME, 0); 933 } 934 935 static int 936 ofwfb_scprobe(device_t dev) 937 { 938 int error; 939 940 device_set_desc(dev, "System console"); 941 942 error = sc_probe_unit(device_get_unit(dev), 943 device_get_flags(dev) | SC_AUTODETECT_KBD); 944 if (error != 0) 945 return (error); 946 947 /* This is a fake device, so make sure we added it ourselves */ 948 return (BUS_PROBE_NOWILDCARD); 949 } 950 951 static int 952 ofwfb_scattach(device_t dev) 953 { 954 return (sc_attach_unit(device_get_unit(dev), 955 device_get_flags(dev) | SC_AUTODETECT_KBD)); 956 } 957 958 static device_method_t ofwfb_sc_methods[] = { 959 DEVMETHOD(device_identify, ofwfb_scidentify), 960 DEVMETHOD(device_probe, ofwfb_scprobe), 961 DEVMETHOD(device_attach, ofwfb_scattach), 962 { 0, 0 } 963 }; 964 965 static driver_t ofwfb_sc_driver = { 966 SC_DRIVER_NAME, 967 ofwfb_sc_methods, 968 sizeof(sc_softc_t), 969 }; 970 971 static devclass_t sc_devclass; 972 973 DRIVER_MODULE(sc, nexus, ofwfb_sc_driver, sc_devclass, 0, 0); 974 975 /* 976 * Define a stub keyboard driver in case one hasn't been 977 * compiled into the kernel 978 */ 979 #include <sys/kbio.h> 980 #include <dev/kbd/kbdreg.h> 981 982 static int dummy_kbd_configure(int flags); 983 984 keyboard_switch_t dummysw; 985 986 static int 987 dummy_kbd_configure(int flags) 988 { 989 990 return (0); 991 } 992 KEYBOARD_DRIVER(dummy, dummysw, dummy_kbd_configure); 993 994 /* 995 * Utility routines from <dev/fb/fbreg.h> 996 */ 997 void 998 ofwfb_bcopy(const void *s, void *d, size_t c) 999 { 1000 bcopy(s, d, c); 1001 } 1002 1003 void 1004 ofwfb_bzero(void *d, size_t c) 1005 { 1006 bzero(d, c); 1007 } 1008 1009 void 1010 ofwfb_fillw(int pat, void *base, size_t cnt) 1011 { 1012 u_int16_t *bptr = base; 1013 1014 while (cnt--) 1015 *bptr++ = pat; 1016 } 1017 1018 u_int16_t 1019 ofwfb_readw(u_int16_t *addr) 1020 { 1021 return (*addr); 1022 } 1023 1024 void 1025 ofwfb_writew(u_int16_t *addr, u_int16_t val) 1026 { 1027 *addr = val; 1028 }
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