1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2003 Peter Grehan 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 AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/module.h> 32 #include <sys/bus.h> 33 #include <sys/kernel.h> 34 #include <sys/sysctl.h> 35 #include <sys/limits.h> 36 #include <sys/conf.h> 37 #include <sys/cons.h> 38 #include <sys/proc.h> 39 #include <sys/fcntl.h> 40 #include <sys/malloc.h> 41 #include <sys/fbio.h> 42 #include <sys/consio.h> 43 44 #include <machine/bus.h> 45 #include <machine/sc_machdep.h> 46 #include <machine/vm.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 = 1; 59 static int ofwfb_reset_on_switch = 1; 60 static SYSCTL_NODE(_hw, OID_AUTO, ofwfb, CTLFLAG_RD | CTLFLAG_MPSAFE, 0, 61 "ofwfb"); 62 SYSCTL_INT(_hw_ofwfb, OID_AUTO, relax_mmap, CTLFLAG_RW, 63 &ofwfb_ignore_mmap_checks, 0, "relaxed mmap bounds checking"); 64 SYSCTL_INT(_hw_ofwfb, OID_AUTO, reset_on_mode_switch, CTLFLAG_RW, 65 &ofwfb_reset_on_switch, 0, "reset the framebuffer driver on mode switch"); 66 67 extern u_char dflt_font_16[]; 68 extern u_char dflt_font_14[]; 69 extern u_char dflt_font_8[]; 70 71 static int ofwfb_configure(int flags); 72 73 static vi_probe_t ofwfb_probe; 74 static vi_init_t ofwfb_init; 75 static vi_get_info_t ofwfb_get_info; 76 static vi_query_mode_t ofwfb_query_mode; 77 static vi_set_mode_t ofwfb_set_mode; 78 static vi_save_font_t ofwfb_save_font; 79 static vi_load_font_t ofwfb_load_font; 80 static vi_show_font_t ofwfb_show_font; 81 static vi_save_palette_t ofwfb_save_palette; 82 static vi_load_palette_t ofwfb_load_palette; 83 static vi_set_border_t ofwfb_set_border; 84 static vi_save_state_t ofwfb_save_state; 85 static vi_load_state_t ofwfb_load_state; 86 static vi_set_win_org_t ofwfb_set_win_org; 87 static vi_read_hw_cursor_t ofwfb_read_hw_cursor; 88 static vi_set_hw_cursor_t ofwfb_set_hw_cursor; 89 static vi_set_hw_cursor_shape_t ofwfb_set_hw_cursor_shape; 90 static vi_blank_display_t ofwfb_blank_display; 91 static vi_mmap_t ofwfb_mmap; 92 static vi_ioctl_t ofwfb_ioctl; 93 static vi_clear_t ofwfb_clear; 94 static vi_fill_rect_t ofwfb_fill_rect; 95 static vi_bitblt_t ofwfb_bitblt; 96 static vi_diag_t ofwfb_diag; 97 static vi_save_cursor_palette_t ofwfb_save_cursor_palette; 98 static vi_load_cursor_palette_t ofwfb_load_cursor_palette; 99 static vi_copy_t ofwfb_copy; 100 static vi_putp_t ofwfb_putp; 101 static vi_putc_t ofwfb_putc; 102 static vi_puts_t ofwfb_puts; 103 static vi_putm_t ofwfb_putm; 104 105 static video_switch_t ofwfbvidsw = { 106 .probe = ofwfb_probe, 107 .init = ofwfb_init, 108 .get_info = ofwfb_get_info, 109 .query_mode = ofwfb_query_mode, 110 .set_mode = ofwfb_set_mode, 111 .save_font = ofwfb_save_font, 112 .load_font = ofwfb_load_font, 113 .show_font = ofwfb_show_font, 114 .save_palette = ofwfb_save_palette, 115 .load_palette = ofwfb_load_palette, 116 .set_border = ofwfb_set_border, 117 .save_state = ofwfb_save_state, 118 .load_state = ofwfb_load_state, 119 .set_win_org = ofwfb_set_win_org, 120 .read_hw_cursor = ofwfb_read_hw_cursor, 121 .set_hw_cursor = ofwfb_set_hw_cursor, 122 .set_hw_cursor_shape = ofwfb_set_hw_cursor_shape, 123 .blank_display = ofwfb_blank_display, 124 .mmap = ofwfb_mmap, 125 .ioctl = ofwfb_ioctl, 126 .clear = ofwfb_clear, 127 .fill_rect = ofwfb_fill_rect, 128 .bitblt = ofwfb_bitblt, 129 .diag = ofwfb_diag, 130 .save_cursor_palette = ofwfb_save_cursor_palette, 131 .load_cursor_palette = ofwfb_load_cursor_palette, 132 .copy = ofwfb_copy, 133 .putp = ofwfb_putp, 134 .putc = ofwfb_putc, 135 .puts = ofwfb_puts, 136 .putm = ofwfb_putm, 137 }; 138 139 /* 140 * bitmap depth-specific routines 141 */ 142 static vi_blank_display_t ofwfb_blank_display8; 143 static vi_putc_t ofwfb_putc8; 144 static vi_putm_t ofwfb_putm8; 145 static vi_set_border_t ofwfb_set_border8; 146 147 static vi_blank_display_t ofwfb_blank_display32; 148 static vi_putc_t ofwfb_putc32; 149 static vi_putm_t ofwfb_putm32; 150 static vi_set_border_t ofwfb_set_border32; 151 152 VIDEO_DRIVER(ofwfb, ofwfbvidsw, ofwfb_configure); 153 154 extern sc_rndr_sw_t txtrndrsw; 155 RENDERER(ofwfb, 0, txtrndrsw, gfb_set); 156 157 RENDERER_MODULE(ofwfb, gfb_set); 158 159 /* 160 * Define the iso6429-1983 colormap 161 */ 162 static struct { 163 uint8_t red; 164 uint8_t green; 165 uint8_t blue; 166 } ofwfb_cmap[16] = { /* # R G B Color */ 167 /* - - - - ----- */ 168 { 0x00, 0x00, 0x00 }, /* 0 0 0 0 Black */ 169 { 0x00, 0x00, 0xaa }, /* 1 0 0 2/3 Blue */ 170 { 0x00, 0xaa, 0x00 }, /* 2 0 2/3 0 Green */ 171 { 0x00, 0xaa, 0xaa }, /* 3 0 2/3 2/3 Cyan */ 172 { 0xaa, 0x00, 0x00 }, /* 4 2/3 0 0 Red */ 173 { 0xaa, 0x00, 0xaa }, /* 5 2/3 0 2/3 Magenta */ 174 { 0xaa, 0x55, 0x00 }, /* 6 2/3 1/3 0 Brown */ 175 { 0xaa, 0xaa, 0xaa }, /* 7 2/3 2/3 2/3 White */ 176 { 0x55, 0x55, 0x55 }, /* 8 1/3 1/3 1/3 Gray */ 177 { 0x55, 0x55, 0xff }, /* 9 1/3 1/3 1 Bright Blue */ 178 { 0x55, 0xff, 0x55 }, /* 10 1/3 1 1/3 Bright Green */ 179 { 0x55, 0xff, 0xff }, /* 11 1/3 1 1 Bright Cyan */ 180 { 0xff, 0x55, 0x55 }, /* 12 1 1/3 1/3 Bright Red */ 181 { 0xff, 0x55, 0xff }, /* 13 1 1/3 1 Bright Magenta */ 182 { 0xff, 0xff, 0x80 }, /* 14 1 1 1/3 Bright Yellow */ 183 { 0xff, 0xff, 0xff } /* 15 1 1 1 Bright White */ 184 }; 185 186 #define TODO printf("%s: unimplemented\n", __func__) 187 188 static u_int16_t ofwfb_static_window[ROW*COL]; 189 190 static struct ofwfb_softc ofwfb_softc; 191 192 static __inline int 193 ofwfb_background(uint8_t attr) 194 { 195 return (attr >> 4); 196 } 197 198 static __inline int 199 ofwfb_foreground(uint8_t attr) 200 { 201 return (attr & 0x0f); 202 } 203 204 static u_int 205 ofwfb_pix32(struct ofwfb_softc *sc, int attr) 206 { 207 u_int retval; 208 209 if (sc->sc_tag == &bs_le_tag) 210 retval = (ofwfb_cmap[attr].red << 16) | 211 (ofwfb_cmap[attr].green << 8) | 212 ofwfb_cmap[attr].blue; 213 else 214 retval = (ofwfb_cmap[attr].blue << 16) | 215 (ofwfb_cmap[attr].green << 8) | 216 ofwfb_cmap[attr].red; 217 218 return (retval); 219 } 220 221 static int 222 ofwfb_configure(int flags) 223 { 224 struct ofwfb_softc *sc; 225 phandle_t chosen; 226 ihandle_t stdout; 227 phandle_t node; 228 uint32_t fb_phys; 229 int depth; 230 int disable; 231 int len; 232 int i; 233 char type[16]; 234 static int done = 0; 235 236 disable = 0; 237 TUNABLE_INT_FETCH("hw.syscons.disable", &disable); 238 if (disable != 0) 239 return (0); 240 241 if (done != 0) 242 return (0); 243 done = 1; 244 245 sc = &ofwfb_softc; 246 247 chosen = OF_finddevice("/chosen"); 248 OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)); 249 node = OF_instance_to_package(stdout); 250 if (node == -1) { 251 /* 252 * The "/chosen/stdout" does not exist try 253 * using "screen" directly. 254 */ 255 node = OF_finddevice("screen"); 256 } 257 OF_getprop(node, "device_type", type, sizeof(type)); 258 if (strcmp(type, "display") != 0) 259 return (0); 260 261 /* Only support 8 and 32-bit framebuffers */ 262 OF_getprop(node, "depth", &depth, sizeof(depth)); 263 if (depth == 8) { 264 sc->sc_blank = ofwfb_blank_display8; 265 sc->sc_putc = ofwfb_putc8; 266 sc->sc_putm = ofwfb_putm8; 267 sc->sc_set_border = ofwfb_set_border8; 268 } else if (depth == 32) { 269 sc->sc_blank = ofwfb_blank_display32; 270 sc->sc_putc = ofwfb_putc32; 271 sc->sc_putm = ofwfb_putm32; 272 sc->sc_set_border = ofwfb_set_border32; 273 } else 274 return (0); 275 276 if (OF_getproplen(node, "height") != sizeof(sc->sc_height) || 277 OF_getproplen(node, "width") != sizeof(sc->sc_width) || 278 OF_getproplen(node, "linebytes") != sizeof(sc->sc_stride)) 279 return (0); 280 281 sc->sc_depth = depth; 282 sc->sc_node = node; 283 sc->sc_console = 1; 284 OF_getprop(node, "height", &sc->sc_height, sizeof(sc->sc_height)); 285 OF_getprop(node, "width", &sc->sc_width, sizeof(sc->sc_width)); 286 OF_getprop(node, "linebytes", &sc->sc_stride, sizeof(sc->sc_stride)); 287 288 /* 289 * Get the PCI addresses of the adapter. The node may be the 290 * child of the PCI device: in that case, try the parent for 291 * the assigned-addresses property. 292 */ 293 len = OF_getprop(node, "assigned-addresses", sc->sc_pciaddrs, 294 sizeof(sc->sc_pciaddrs)); 295 if (len == -1) { 296 len = OF_getprop(OF_parent(node), "assigned-addresses", 297 sc->sc_pciaddrs, sizeof(sc->sc_pciaddrs)); 298 } 299 if (len == -1) 300 len = 0; 301 sc->sc_num_pciaddrs = len / sizeof(struct ofw_pci_register); 302 303 /* 304 * Grab the physical address of the framebuffer, and then map it 305 * into our memory space. If the MMU is not yet up, it will be 306 * remapped for us when relocation turns on. 307 * 308 * XXX We assume #address-cells is 1 at this point. 309 */ 310 if (OF_getproplen(node, "address") == sizeof(fb_phys)) { 311 OF_getprop(node, "address", &fb_phys, sizeof(fb_phys)); 312 sc->sc_tag = &bs_be_tag; 313 bus_space_map(sc->sc_tag, fb_phys, sc->sc_height * 314 sc->sc_stride, BUS_SPACE_MAP_PREFETCHABLE, &sc->sc_addr); 315 } else { 316 /* 317 * Some IBM systems don't have an address property. Try to 318 * guess the framebuffer region from the assigned addresses. 319 * This is ugly, but there doesn't seem to be an alternative. 320 * Linux does the same thing. 321 */ 322 323 fb_phys = sc->sc_num_pciaddrs; 324 for (i = 0; i < sc->sc_num_pciaddrs; i++) { 325 /* If it is too small, not the framebuffer */ 326 if (sc->sc_pciaddrs[i].size_lo < 327 sc->sc_stride*sc->sc_height) 328 continue; 329 /* If it is not memory, it isn't either */ 330 if (!(sc->sc_pciaddrs[i].phys_hi & 331 OFW_PCI_PHYS_HI_SPACE_MEM32)) 332 continue; 333 334 /* This could be the framebuffer */ 335 fb_phys = i; 336 337 /* If it is prefetchable, it certainly is */ 338 if (sc->sc_pciaddrs[i].phys_hi & 339 OFW_PCI_PHYS_HI_PREFETCHABLE) 340 break; 341 } 342 if (fb_phys == sc->sc_num_pciaddrs) 343 return (0); 344 345 OF_decode_addr(node, fb_phys, &sc->sc_tag, &sc->sc_addr, NULL); 346 } 347 348 ofwfb_init(0, &sc->sc_va, 0); 349 350 return (0); 351 } 352 353 static int 354 ofwfb_probe(int unit, video_adapter_t **adp, void *arg, int flags) 355 { 356 TODO; 357 return (0); 358 } 359 360 static int 361 ofwfb_init(int unit, video_adapter_t *adp, int flags) 362 { 363 struct ofwfb_softc *sc; 364 video_info_t *vi; 365 int cborder; 366 int font_height; 367 368 sc = (struct ofwfb_softc *)adp; 369 vi = &adp->va_info; 370 371 vid_init_struct(adp, "ofwfb", -1, unit); 372 373 /* The default font size can be overridden by loader */ 374 font_height = 16; 375 TUNABLE_INT_FETCH("hw.syscons.fsize", &font_height); 376 if (font_height == 8) { 377 sc->sc_font = dflt_font_8; 378 sc->sc_font_height = 8; 379 } else if (font_height == 14) { 380 sc->sc_font = dflt_font_14; 381 sc->sc_font_height = 14; 382 } else { 383 /* default is 8x16 */ 384 sc->sc_font = dflt_font_16; 385 sc->sc_font_height = 16; 386 } 387 388 /* The user can set a border in chars - default is 1 char width */ 389 cborder = 1; 390 TUNABLE_INT_FETCH("hw.syscons.border", &cborder); 391 392 vi->vi_cheight = sc->sc_font_height; 393 vi->vi_width = sc->sc_width/8 - 2*cborder; 394 vi->vi_height = sc->sc_height/sc->sc_font_height - 2*cborder; 395 vi->vi_cwidth = 8; 396 397 /* 398 * Clamp width/height to syscons maximums 399 */ 400 if (vi->vi_width > COL) 401 vi->vi_width = COL; 402 if (vi->vi_height > ROW) 403 vi->vi_height = ROW; 404 405 sc->sc_xmargin = (sc->sc_width - (vi->vi_width * vi->vi_cwidth)) / 2; 406 sc->sc_ymargin = (sc->sc_height - (vi->vi_height * vi->vi_cheight))/2; 407 408 /* 409 * Avoid huge amounts of conditional code in syscons by 410 * defining a dummy h/w text display buffer. 411 */ 412 adp->va_window = (vm_offset_t) ofwfb_static_window; 413 414 /* 415 * Enable future font-loading and flag color support, as well as 416 * adding V_ADP_MODECHANGE so that we ofwfb_set_mode() gets called 417 * when the X server shuts down. This enables us to get the console 418 * back when X disappears. 419 */ 420 adp->va_flags |= V_ADP_FONT | V_ADP_COLOR | V_ADP_MODECHANGE; 421 422 ofwfb_set_mode(&sc->sc_va, 0); 423 424 vid_register(&sc->sc_va); 425 426 return (0); 427 } 428 429 static int 430 ofwfb_get_info(video_adapter_t *adp, int mode, video_info_t *info) 431 { 432 bcopy(&adp->va_info, info, sizeof(*info)); 433 return (0); 434 } 435 436 static int 437 ofwfb_query_mode(video_adapter_t *adp, video_info_t *info) 438 { 439 TODO; 440 return (0); 441 } 442 443 static int 444 ofwfb_set_mode(video_adapter_t *adp, int mode) 445 { 446 struct ofwfb_softc *sc; 447 char name[64]; 448 ihandle_t ih; 449 int i, retval; 450 451 sc = (struct ofwfb_softc *)adp; 452 453 if (ofwfb_reset_on_switch) { 454 /* 455 * Open the display device, which will initialize it. 456 */ 457 458 memset(name, 0, sizeof(name)); 459 OF_package_to_path(sc->sc_node, name, sizeof(name)); 460 ih = OF_open(name); 461 462 if (sc->sc_depth == 8) { 463 /* 464 * Install the ISO6429 colormap - older OFW systems 465 * don't do this by default 466 */ 467 for (i = 0; i < 16; i++) { 468 OF_call_method("color!", ih, 4, 1, 469 ofwfb_cmap[i].red, 470 ofwfb_cmap[i].green, 471 ofwfb_cmap[i].blue, 472 i, 473 &retval); 474 } 475 } 476 } 477 478 ofwfb_blank_display(&sc->sc_va, V_DISPLAY_ON); 479 480 return (0); 481 } 482 483 static int 484 ofwfb_save_font(video_adapter_t *adp, int page, int size, int width, 485 u_char *data, int c, int count) 486 { 487 TODO; 488 return (0); 489 } 490 491 static int 492 ofwfb_load_font(video_adapter_t *adp, int page, int size, int width, 493 u_char *data, int c, int count) 494 { 495 struct ofwfb_softc *sc; 496 497 sc = (struct ofwfb_softc *)adp; 498 499 /* 500 * syscons code has already determined that current width/height 501 * are unchanged for this new font 502 */ 503 sc->sc_font = data; 504 return (0); 505 } 506 507 static int 508 ofwfb_show_font(video_adapter_t *adp, int page) 509 { 510 511 return (0); 512 } 513 514 static int 515 ofwfb_save_palette(video_adapter_t *adp, u_char *palette) 516 { 517 /* TODO; */ 518 return (0); 519 } 520 521 static int 522 ofwfb_load_palette(video_adapter_t *adp, u_char *palette) 523 { 524 /* TODO; */ 525 return (0); 526 } 527 528 static int 529 ofwfb_set_border8(video_adapter_t *adp, int border) 530 { 531 struct ofwfb_softc *sc; 532 int i, j; 533 uint8_t *addr; 534 uint8_t bground; 535 536 sc = (struct ofwfb_softc *)adp; 537 538 bground = ofwfb_background(border); 539 540 /* Set top margin */ 541 addr = (uint8_t *) sc->sc_addr; 542 for (i = 0; i < sc->sc_ymargin; i++) { 543 for (j = 0; j < sc->sc_width; j++) { 544 *(addr + j) = bground; 545 } 546 addr += sc->sc_stride; 547 } 548 549 /* bottom margin */ 550 addr = (uint8_t *) sc->sc_addr + (sc->sc_height - sc->sc_ymargin)*sc->sc_stride; 551 for (i = 0; i < sc->sc_ymargin; i++) { 552 for (j = 0; j < sc->sc_width; j++) { 553 *(addr + j) = bground; 554 } 555 addr += sc->sc_stride; 556 } 557 558 /* remaining left and right borders */ 559 addr = (uint8_t *) sc->sc_addr + sc->sc_ymargin*sc->sc_stride; 560 for (i = 0; i < sc->sc_height - 2*sc->sc_xmargin; i++) { 561 for (j = 0; j < sc->sc_xmargin; j++) { 562 *(addr + j) = bground; 563 *(addr + j + sc->sc_width - sc->sc_xmargin) = bground; 564 } 565 addr += sc->sc_stride; 566 } 567 568 return (0); 569 } 570 571 static int 572 ofwfb_set_border32(video_adapter_t *adp, int border) 573 { 574 /* XXX Be lazy for now and blank entire screen */ 575 return (ofwfb_blank_display32(adp, border)); 576 } 577 578 static int 579 ofwfb_set_border(video_adapter_t *adp, int border) 580 { 581 struct ofwfb_softc *sc; 582 583 sc = (struct ofwfb_softc *)adp; 584 585 return ((*sc->sc_set_border)(adp, border)); 586 } 587 588 static int 589 ofwfb_save_state(video_adapter_t *adp, void *p, size_t size) 590 { 591 TODO; 592 return (0); 593 } 594 595 static int 596 ofwfb_load_state(video_adapter_t *adp, void *p) 597 { 598 TODO; 599 return (0); 600 } 601 602 static int 603 ofwfb_set_win_org(video_adapter_t *adp, off_t offset) 604 { 605 TODO; 606 return (0); 607 } 608 609 static int 610 ofwfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 611 { 612 *col = 0; 613 *row = 0; 614 615 return (0); 616 } 617 618 static int 619 ofwfb_set_hw_cursor(video_adapter_t *adp, int col, int row) 620 { 621 622 return (0); 623 } 624 625 static int 626 ofwfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 627 int celsize, int blink) 628 { 629 return (0); 630 } 631 632 static int 633 ofwfb_blank_display8(video_adapter_t *adp, int mode) 634 { 635 struct ofwfb_softc *sc; 636 int i; 637 uint32_t *addr; 638 uint32_t color; 639 uint32_t end; 640 641 sc = (struct ofwfb_softc *)adp; 642 addr = (uint32_t *) sc->sc_addr; 643 end = (sc->sc_stride/4) * sc->sc_height; 644 645 /* Splat 4 pixels at once. */ 646 color = (ofwfb_background(SC_NORM_ATTR) << 24) | 647 (ofwfb_background(SC_NORM_ATTR) << 16) | 648 (ofwfb_background(SC_NORM_ATTR) << 8) | 649 (ofwfb_background(SC_NORM_ATTR)); 650 651 for (i = 0; i < end; i++) 652 *(addr + i) = color; 653 654 return (0); 655 } 656 657 static int 658 ofwfb_blank_display32(video_adapter_t *adp, int mode) 659 { 660 struct ofwfb_softc *sc; 661 int i; 662 uint32_t *addr, blank; 663 664 sc = (struct ofwfb_softc *)adp; 665 addr = (uint32_t *) sc->sc_addr; 666 blank = ofwfb_pix32(sc, ofwfb_background(SC_NORM_ATTR)); 667 668 for (i = 0; i < (sc->sc_stride/4)*sc->sc_height; i++) 669 *(addr + i) = blank; 670 671 return (0); 672 } 673 674 static int 675 ofwfb_blank_display(video_adapter_t *adp, int mode) 676 { 677 struct ofwfb_softc *sc; 678 679 sc = (struct ofwfb_softc *)adp; 680 681 return ((*sc->sc_blank)(adp, mode)); 682 } 683 684 static int 685 ofwfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr, 686 int prot, vm_memattr_t *memattr) 687 { 688 struct ofwfb_softc *sc; 689 int i; 690 691 sc = (struct ofwfb_softc *)adp; 692 693 /* 694 * Make sure the requested address lies within the PCI device's 695 * assigned addrs 696 */ 697 for (i = 0; i < sc->sc_num_pciaddrs; i++) 698 if (offset >= sc->sc_pciaddrs[i].phys_lo && 699 offset < (sc->sc_pciaddrs[i].phys_lo + sc->sc_pciaddrs[i].size_lo)) 700 { 701 /* 702 * If this is a prefetchable BAR, we can (and should) 703 * enable write-combining. 704 */ 705 if (sc->sc_pciaddrs[i].phys_hi & 706 OFW_PCI_PHYS_HI_PREFETCHABLE) 707 *memattr = VM_MEMATTR_WRITE_COMBINING; 708 709 *paddr = offset; 710 return (0); 711 } 712 713 /* 714 * Hack for Radeon... 715 */ 716 if (ofwfb_ignore_mmap_checks) { 717 *paddr = offset; 718 return (0); 719 } 720 721 /* 722 * This might be a legacy VGA mem request: if so, just point it at the 723 * framebuffer, since it shouldn't be touched 724 */ 725 if (offset < sc->sc_stride*sc->sc_height) { 726 *paddr = sc->sc_addr + offset; 727 return (0); 728 } 729 730 /* 731 * Error if we didn't have a better idea. 732 */ 733 if (sc->sc_num_pciaddrs == 0) 734 return (ENOMEM); 735 736 return (EINVAL); 737 } 738 739 static int 740 ofwfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data) 741 { 742 743 return (0); 744 } 745 746 static int 747 ofwfb_clear(video_adapter_t *adp) 748 { 749 TODO; 750 return (0); 751 } 752 753 static int 754 ofwfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 755 { 756 TODO; 757 return (0); 758 } 759 760 static int 761 ofwfb_bitblt(video_adapter_t *adp, ...) 762 { 763 TODO; 764 return (0); 765 } 766 767 static int 768 ofwfb_diag(video_adapter_t *adp, int level) 769 { 770 TODO; 771 return (0); 772 } 773 774 static int 775 ofwfb_save_cursor_palette(video_adapter_t *adp, u_char *palette) 776 { 777 TODO; 778 return (0); 779 } 780 781 static int 782 ofwfb_load_cursor_palette(video_adapter_t *adp, u_char *palette) 783 { 784 TODO; 785 return (0); 786 } 787 788 static int 789 ofwfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n) 790 { 791 TODO; 792 return (0); 793 } 794 795 static int 796 ofwfb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a, 797 int size, int bpp, int bit_ltor, int byte_ltor) 798 { 799 TODO; 800 return (0); 801 } 802 803 static int 804 ofwfb_putc8(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a) 805 { 806 struct ofwfb_softc *sc; 807 int row; 808 int col; 809 int i; 810 uint32_t *addr; 811 u_char *p, fg, bg; 812 union { 813 uint32_t l; 814 uint8_t c[4]; 815 } ch1, ch2; 816 817 sc = (struct ofwfb_softc *)adp; 818 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight; 819 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth; 820 p = sc->sc_font + c*sc->sc_font_height; 821 addr = (u_int32_t *)((uintptr_t)sc->sc_addr 822 + (row + sc->sc_ymargin)*sc->sc_stride 823 + col + sc->sc_xmargin); 824 825 fg = ofwfb_foreground(a); 826 bg = ofwfb_background(a); 827 828 for (i = 0; i < sc->sc_font_height; i++) { 829 u_char fline = p[i]; 830 831 /* 832 * Assume that there is more background than foreground 833 * in characters and init accordingly 834 */ 835 ch1.l = ch2.l = (bg << 24) | (bg << 16) | (bg << 8) | bg; 836 837 /* 838 * Calculate 2 x 4-chars at a time, and then 839 * write these out. 840 */ 841 if (fline & 0x80) ch1.c[0] = fg; 842 if (fline & 0x40) ch1.c[1] = fg; 843 if (fline & 0x20) ch1.c[2] = fg; 844 if (fline & 0x10) ch1.c[3] = fg; 845 846 if (fline & 0x08) ch2.c[0] = fg; 847 if (fline & 0x04) ch2.c[1] = fg; 848 if (fline & 0x02) ch2.c[2] = fg; 849 if (fline & 0x01) ch2.c[3] = fg; 850 851 addr[0] = ch1.l; 852 addr[1] = ch2.l; 853 addr += (sc->sc_stride / sizeof(u_int32_t)); 854 } 855 856 return (0); 857 } 858 859 static int 860 ofwfb_putc32(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a) 861 { 862 struct ofwfb_softc *sc; 863 int row; 864 int col; 865 int i, j, k; 866 uint32_t *addr, fg, bg; 867 u_char *p; 868 869 sc = (struct ofwfb_softc *)adp; 870 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight; 871 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth; 872 p = sc->sc_font + c*sc->sc_font_height; 873 addr = (uint32_t *)sc->sc_addr 874 + (row + sc->sc_ymargin)*(sc->sc_stride/4) 875 + col + sc->sc_xmargin; 876 877 fg = ofwfb_pix32(sc, ofwfb_foreground(a)); 878 bg = ofwfb_pix32(sc, ofwfb_background(a)); 879 880 for (i = 0; i < sc->sc_font_height; i++) { 881 for (j = 0, k = 7; j < 8; j++, k--) { 882 if ((p[i] & (1 << k)) == 0) 883 *(addr + j) = bg; 884 else 885 *(addr + j) = fg; 886 } 887 addr += (sc->sc_stride/4); 888 } 889 890 return (0); 891 } 892 893 static int 894 ofwfb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a) 895 { 896 struct ofwfb_softc *sc; 897 898 sc = (struct ofwfb_softc *)adp; 899 900 return ((*sc->sc_putc)(adp, off, c, a)); 901 } 902 903 static int 904 ofwfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len) 905 { 906 int i; 907 908 for (i = 0; i < len; i++) { 909 ofwfb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8); 910 } 911 return (0); 912 } 913 914 static int 915 ofwfb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image, 916 uint32_t pixel_mask, int size, int width) 917 { 918 struct ofwfb_softc *sc; 919 920 sc = (struct ofwfb_softc *)adp; 921 922 return ((*sc->sc_putm)(adp, x, y, pixel_image, pixel_mask, size, 923 width)); 924 } 925 926 static int 927 ofwfb_putm8(video_adapter_t *adp, int x, int y, uint8_t *pixel_image, 928 uint32_t pixel_mask, int size, int width) 929 { 930 struct ofwfb_softc *sc; 931 int i, j, k; 932 uint8_t *addr; 933 u_char fg, bg; 934 935 sc = (struct ofwfb_softc *)adp; 936 addr = (u_int8_t *)((uintptr_t)sc->sc_addr 937 + (y + sc->sc_ymargin)*sc->sc_stride 938 + x + sc->sc_xmargin); 939 940 fg = ofwfb_foreground(SC_NORM_ATTR); 941 bg = ofwfb_background(SC_NORM_ATTR); 942 943 for (i = 0; i < size && i+y < sc->sc_height - 2*sc->sc_ymargin; i++) { 944 /* 945 * Calculate 2 x 4-chars at a time, and then 946 * write these out. 947 */ 948 for (j = 0, k = width; j < 8; j++, k--) { 949 if (x + j >= sc->sc_width - 2*sc->sc_xmargin) 950 continue; 951 952 if (pixel_image[i] & (1 << k)) 953 addr[j] = (addr[j] == fg) ? bg : fg; 954 } 955 956 addr += (sc->sc_stride / sizeof(u_int8_t)); 957 } 958 959 return (0); 960 } 961 962 static int 963 ofwfb_putm32(video_adapter_t *adp, int x, int y, uint8_t *pixel_image, 964 uint32_t pixel_mask, int size, int width) 965 { 966 struct ofwfb_softc *sc; 967 int i, j, k; 968 uint32_t fg, bg; 969 uint32_t *addr; 970 971 sc = (struct ofwfb_softc *)adp; 972 addr = (uint32_t *)sc->sc_addr 973 + (y + sc->sc_ymargin)*(sc->sc_stride/4) 974 + x + sc->sc_xmargin; 975 976 fg = ofwfb_pix32(sc, ofwfb_foreground(SC_NORM_ATTR)); 977 bg = ofwfb_pix32(sc, ofwfb_background(SC_NORM_ATTR)); 978 979 for (i = 0; i < size && i+y < sc->sc_height - 2*sc->sc_ymargin; i++) { 980 for (j = 0, k = width; j < 8; j++, k--) { 981 if (x + j >= sc->sc_width - 2*sc->sc_xmargin) 982 continue; 983 984 if (pixel_image[i] & (1 << k)) 985 *(addr + j) = (*(addr + j) == fg) ? bg : fg; 986 } 987 addr += (sc->sc_stride/4); 988 } 989 990 return (0); 991 } 992 993 /* 994 * Define the syscons nexus device attachment 995 */ 996 static void 997 ofwfb_scidentify(driver_t *driver, device_t parent) 998 { 999 device_t child; 1000 1001 /* 1002 * Add with a priority guaranteed to make it last on 1003 * the device list 1004 */ 1005 child = BUS_ADD_CHILD(parent, INT_MAX, SC_DRIVER_NAME, 0); 1006 } 1007 1008 static int 1009 ofwfb_scprobe(device_t dev) 1010 { 1011 int error; 1012 1013 device_set_desc(dev, "System console"); 1014 1015 error = sc_probe_unit(device_get_unit(dev), 1016 device_get_flags(dev) | SC_AUTODETECT_KBD); 1017 if (error != 0) 1018 return (error); 1019 1020 /* This is a fake device, so make sure we added it ourselves */ 1021 return (BUS_PROBE_NOWILDCARD); 1022 } 1023 1024 static int 1025 ofwfb_scattach(device_t dev) 1026 { 1027 return (sc_attach_unit(device_get_unit(dev), 1028 device_get_flags(dev) | SC_AUTODETECT_KBD)); 1029 } 1030 1031 static device_method_t ofwfb_sc_methods[] = { 1032 DEVMETHOD(device_identify, ofwfb_scidentify), 1033 DEVMETHOD(device_probe, ofwfb_scprobe), 1034 DEVMETHOD(device_attach, ofwfb_scattach), 1035 { 0, 0 } 1036 }; 1037 1038 static driver_t ofwfb_sc_driver = { 1039 SC_DRIVER_NAME, 1040 ofwfb_sc_methods, 1041 sizeof(sc_softc_t), 1042 }; 1043 1044 DRIVER_MODULE(ofwfb, nexus, ofwfb_sc_driver, 0, 0); 1045 1046 /* 1047 * Utility routines from <dev/fb/fbreg.h> 1048 */ 1049 void 1050 ofwfb_bcopy(const void *s, void *d, size_t c) 1051 { 1052 bcopy(s, d, c); 1053 } 1054 1055 void 1056 ofwfb_bzero(void *d, size_t c) 1057 { 1058 bzero(d, c); 1059 } 1060 1061 void 1062 ofwfb_fillw(int pat, void *base, size_t cnt) 1063 { 1064 u_int16_t *bptr = base; 1065 1066 while (cnt--) 1067 *bptr++ = pat; 1068 } 1069 1070 u_int16_t 1071 ofwfb_readw(u_int16_t *addr) 1072 { 1073 return (*addr); 1074 } 1075 1076 void 1077 ofwfb_writew(u_int16_t *addr, u_int16_t val) 1078 { 1079 *addr = val; 1080 } 1081