ofw_syscons.c revision 256281
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: stable/10/sys/powerpc/ofw/ofw_syscons.c 255904 2013-09-26 22:47:02Z nwhitehorn $"); 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#include <machine/vm.h> 48 49#include <sys/rman.h> 50 51#include <dev/fb/fbreg.h> 52#include <dev/syscons/syscons.h> 53 54#include <dev/ofw/openfirm.h> 55#include <dev/ofw/ofw_bus.h> 56#include <dev/ofw/ofw_pci.h> 57#include <powerpc/ofw/ofw_syscons.h> 58 59static int ofwfb_ignore_mmap_checks = 1; 60static SYSCTL_NODE(_hw, OID_AUTO, ofwfb, CTLFLAG_RD, 0, "ofwfb"); 61SYSCTL_INT(_hw_ofwfb, OID_AUTO, relax_mmap, CTLFLAG_RW, 62 &ofwfb_ignore_mmap_checks, 0, "relaxed mmap bounds checking"); 63 64extern u_char dflt_font_16[]; 65extern u_char dflt_font_14[]; 66extern u_char dflt_font_8[]; 67 68static int ofwfb_configure(int flags); 69 70static vi_probe_t ofwfb_probe; 71static vi_init_t ofwfb_init; 72static vi_get_info_t ofwfb_get_info; 73static vi_query_mode_t ofwfb_query_mode; 74static vi_set_mode_t ofwfb_set_mode; 75static vi_save_font_t ofwfb_save_font; 76static vi_load_font_t ofwfb_load_font; 77static vi_show_font_t ofwfb_show_font; 78static vi_save_palette_t ofwfb_save_palette; 79static vi_load_palette_t ofwfb_load_palette; 80static vi_set_border_t ofwfb_set_border; 81static vi_save_state_t ofwfb_save_state; 82static vi_load_state_t ofwfb_load_state; 83static vi_set_win_org_t ofwfb_set_win_org; 84static vi_read_hw_cursor_t ofwfb_read_hw_cursor; 85static vi_set_hw_cursor_t ofwfb_set_hw_cursor; 86static vi_set_hw_cursor_shape_t ofwfb_set_hw_cursor_shape; 87static vi_blank_display_t ofwfb_blank_display; 88static vi_mmap_t ofwfb_mmap; 89static vi_ioctl_t ofwfb_ioctl; 90static vi_clear_t ofwfb_clear; 91static vi_fill_rect_t ofwfb_fill_rect; 92static vi_bitblt_t ofwfb_bitblt; 93static vi_diag_t ofwfb_diag; 94static vi_save_cursor_palette_t ofwfb_save_cursor_palette; 95static vi_load_cursor_palette_t ofwfb_load_cursor_palette; 96static vi_copy_t ofwfb_copy; 97static vi_putp_t ofwfb_putp; 98static vi_putc_t ofwfb_putc; 99static vi_puts_t ofwfb_puts; 100static vi_putm_t ofwfb_putm; 101 102static video_switch_t ofwfbvidsw = { 103 .probe = ofwfb_probe, 104 .init = ofwfb_init, 105 .get_info = ofwfb_get_info, 106 .query_mode = ofwfb_query_mode, 107 .set_mode = ofwfb_set_mode, 108 .save_font = ofwfb_save_font, 109 .load_font = ofwfb_load_font, 110 .show_font = ofwfb_show_font, 111 .save_palette = ofwfb_save_palette, 112 .load_palette = ofwfb_load_palette, 113 .set_border = ofwfb_set_border, 114 .save_state = ofwfb_save_state, 115 .load_state = ofwfb_load_state, 116 .set_win_org = ofwfb_set_win_org, 117 .read_hw_cursor = ofwfb_read_hw_cursor, 118 .set_hw_cursor = ofwfb_set_hw_cursor, 119 .set_hw_cursor_shape = ofwfb_set_hw_cursor_shape, 120 .blank_display = ofwfb_blank_display, 121 .mmap = ofwfb_mmap, 122 .ioctl = ofwfb_ioctl, 123 .clear = ofwfb_clear, 124 .fill_rect = ofwfb_fill_rect, 125 .bitblt = ofwfb_bitblt, 126 .diag = ofwfb_diag, 127 .save_cursor_palette = ofwfb_save_cursor_palette, 128 .load_cursor_palette = ofwfb_load_cursor_palette, 129 .copy = ofwfb_copy, 130 .putp = ofwfb_putp, 131 .putc = ofwfb_putc, 132 .puts = ofwfb_puts, 133 .putm = ofwfb_putm, 134}; 135 136/* 137 * bitmap depth-specific routines 138 */ 139static vi_blank_display_t ofwfb_blank_display8; 140static vi_putc_t ofwfb_putc8; 141static vi_putm_t ofwfb_putm8; 142static vi_set_border_t ofwfb_set_border8; 143 144static vi_blank_display_t ofwfb_blank_display32; 145static vi_putc_t ofwfb_putc32; 146static vi_putm_t ofwfb_putm32; 147static vi_set_border_t ofwfb_set_border32; 148 149VIDEO_DRIVER(ofwfb, ofwfbvidsw, ofwfb_configure); 150 151extern sc_rndr_sw_t txtrndrsw; 152RENDERER(ofwfb, 0, txtrndrsw, gfb_set); 153 154RENDERER_MODULE(ofwfb, gfb_set); 155 156/* 157 * Define the iso6429-1983 colormap 158 */ 159static struct { 160 uint8_t red; 161 uint8_t green; 162 uint8_t blue; 163} ofwfb_cmap[16] = { /* # R G B Color */ 164 /* - - - - ----- */ 165 { 0x00, 0x00, 0x00 }, /* 0 0 0 0 Black */ 166 { 0x00, 0x00, 0xaa }, /* 1 0 0 2/3 Blue */ 167 { 0x00, 0xaa, 0x00 }, /* 2 0 2/3 0 Green */ 168 { 0x00, 0xaa, 0xaa }, /* 3 0 2/3 2/3 Cyan */ 169 { 0xaa, 0x00, 0x00 }, /* 4 2/3 0 0 Red */ 170 { 0xaa, 0x00, 0xaa }, /* 5 2/3 0 2/3 Magenta */ 171 { 0xaa, 0x55, 0x00 }, /* 6 2/3 1/3 0 Brown */ 172 { 0xaa, 0xaa, 0xaa }, /* 7 2/3 2/3 2/3 White */ 173 { 0x55, 0x55, 0x55 }, /* 8 1/3 1/3 1/3 Gray */ 174 { 0x55, 0x55, 0xff }, /* 9 1/3 1/3 1 Bright Blue */ 175 { 0x55, 0xff, 0x55 }, /* 10 1/3 1 1/3 Bright Green */ 176 { 0x55, 0xff, 0xff }, /* 11 1/3 1 1 Bright Cyan */ 177 { 0xff, 0x55, 0x55 }, /* 12 1 1/3 1/3 Bright Red */ 178 { 0xff, 0x55, 0xff }, /* 13 1 1/3 1 Bright Magenta */ 179 { 0xff, 0xff, 0x80 }, /* 14 1 1 1/3 Bright Yellow */ 180 { 0xff, 0xff, 0xff } /* 15 1 1 1 Bright White */ 181}; 182 183#define TODO printf("%s: unimplemented\n", __func__) 184 185static u_int16_t ofwfb_static_window[ROW*COL]; 186 187static struct ofwfb_softc ofwfb_softc; 188 189static __inline int 190ofwfb_background(uint8_t attr) 191{ 192 return (attr >> 4); 193} 194 195static __inline int 196ofwfb_foreground(uint8_t attr) 197{ 198 return (attr & 0x0f); 199} 200 201static u_int 202ofwfb_pix32(struct ofwfb_softc *sc, int attr) 203{ 204 u_int retval; 205 206 if (sc->sc_tag == &bs_le_tag) 207 retval = (ofwfb_cmap[attr].red << 16) | 208 (ofwfb_cmap[attr].green << 8) | 209 ofwfb_cmap[attr].blue; 210 else 211 retval = (ofwfb_cmap[attr].blue << 16) | 212 (ofwfb_cmap[attr].green << 8) | 213 ofwfb_cmap[attr].red; 214 215 return (retval); 216} 217 218static int 219ofwfb_configure(int flags) 220{ 221 struct ofwfb_softc *sc; 222 phandle_t chosen; 223 ihandle_t stdout; 224 phandle_t node; 225 uint32_t fb_phys; 226 int depth; 227 int disable; 228 int len; 229 int i; 230 char type[16]; 231 static int done = 0; 232 233 disable = 0; 234 TUNABLE_INT_FETCH("hw.syscons.disable", &disable); 235 if (disable != 0) 236 return (0); 237 238 if (done != 0) 239 return (0); 240 done = 1; 241 242 sc = &ofwfb_softc; 243 244 chosen = OF_finddevice("/chosen"); 245 OF_getprop(chosen, "stdout", &stdout, sizeof(stdout)); 246 node = OF_instance_to_package(stdout); 247 if (node == -1) { 248 /* 249 * The "/chosen/stdout" does not exist try 250 * using "screen" directly. 251 */ 252 node = OF_finddevice("screen"); 253 } 254 OF_getprop(node, "device_type", type, sizeof(type)); 255 if (strcmp(type, "display") != 0) 256 return (0); 257 258 /* Only support 8 and 32-bit framebuffers */ 259 OF_getprop(node, "depth", &depth, sizeof(depth)); 260 if (depth == 8) { 261 sc->sc_blank = ofwfb_blank_display8; 262 sc->sc_putc = ofwfb_putc8; 263 sc->sc_putm = ofwfb_putm8; 264 sc->sc_set_border = ofwfb_set_border8; 265 } else if (depth == 32) { 266 sc->sc_blank = ofwfb_blank_display32; 267 sc->sc_putc = ofwfb_putc32; 268 sc->sc_putm = ofwfb_putm32; 269 sc->sc_set_border = ofwfb_set_border32; 270 } else 271 return (0); 272 273 if (OF_getproplen(node, "height") != sizeof(sc->sc_height) || 274 OF_getproplen(node, "width") != sizeof(sc->sc_width) || 275 OF_getproplen(node, "linebytes") != sizeof(sc->sc_stride)) 276 return (0); 277 278 sc->sc_depth = depth; 279 sc->sc_node = node; 280 sc->sc_console = 1; 281 OF_getprop(node, "height", &sc->sc_height, sizeof(sc->sc_height)); 282 OF_getprop(node, "width", &sc->sc_width, sizeof(sc->sc_width)); 283 OF_getprop(node, "linebytes", &sc->sc_stride, sizeof(sc->sc_stride)); 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 if (len == -1) 297 len = 0; 298 sc->sc_num_pciaddrs = len / sizeof(struct ofw_pci_register); 299 300 /* 301 * Grab the physical address of the framebuffer, and then map it 302 * into our memory space. If the MMU is not yet up, it will be 303 * remapped for us when relocation turns on. 304 * 305 * XXX We assume #address-cells is 1 at this point. 306 */ 307 if (OF_getproplen(node, "address") == sizeof(fb_phys)) { 308 OF_getprop(node, "address", &fb_phys, sizeof(fb_phys)); 309 sc->sc_tag = &bs_be_tag; 310 bus_space_map(sc->sc_tag, fb_phys, sc->sc_height * 311 sc->sc_stride, BUS_SPACE_MAP_PREFETCHABLE, &sc->sc_addr); 312 } else { 313 /* 314 * Some IBM systems don't have an address property. Try to 315 * guess the framebuffer region from the assigned addresses. 316 * This is ugly, but there doesn't seem to be an alternative. 317 * Linux does the same thing. 318 */ 319 320 fb_phys = sc->sc_num_pciaddrs; 321 for (i = 0; i < sc->sc_num_pciaddrs; i++) { 322 /* If it is too small, not the framebuffer */ 323 if (sc->sc_pciaddrs[i].size_lo < 324 sc->sc_stride*sc->sc_height) 325 continue; 326 /* If it is not memory, it isn't either */ 327 if (!(sc->sc_pciaddrs[i].phys_hi & 328 OFW_PCI_PHYS_HI_SPACE_MEM32)) 329 continue; 330 331 /* This could be the framebuffer */ 332 fb_phys = i; 333 334 /* If it is prefetchable, it certainly is */ 335 if (sc->sc_pciaddrs[i].phys_hi & 336 OFW_PCI_PHYS_HI_PREFETCHABLE) 337 break; 338 } 339 if (fb_phys == sc->sc_num_pciaddrs) 340 return (0); 341 342 OF_decode_addr(node, fb_phys, &sc->sc_tag, &sc->sc_addr); 343 } 344 345 ofwfb_init(0, &sc->sc_va, 0); 346 347 return (0); 348} 349 350static int 351ofwfb_probe(int unit, video_adapter_t **adp, void *arg, int flags) 352{ 353 TODO; 354 return (0); 355} 356 357static int 358ofwfb_init(int unit, video_adapter_t *adp, int flags) 359{ 360 struct ofwfb_softc *sc; 361 video_info_t *vi; 362 int cborder; 363 int font_height; 364 365 sc = (struct ofwfb_softc *)adp; 366 vi = &adp->va_info; 367 368 vid_init_struct(adp, "ofwfb", -1, unit); 369 370 /* The default font size can be overridden by loader */ 371 font_height = 16; 372 TUNABLE_INT_FETCH("hw.syscons.fsize", &font_height); 373 if (font_height == 8) { 374 sc->sc_font = dflt_font_8; 375 sc->sc_font_height = 8; 376 } else if (font_height == 14) { 377 sc->sc_font = dflt_font_14; 378 sc->sc_font_height = 14; 379 } else { 380 /* default is 8x16 */ 381 sc->sc_font = dflt_font_16; 382 sc->sc_font_height = 16; 383 } 384 385 /* The user can set a border in chars - default is 1 char width */ 386 cborder = 1; 387 TUNABLE_INT_FETCH("hw.syscons.border", &cborder); 388 389 vi->vi_cheight = sc->sc_font_height; 390 vi->vi_width = sc->sc_width/8 - 2*cborder; 391 vi->vi_height = sc->sc_height/sc->sc_font_height - 2*cborder; 392 vi->vi_cwidth = 8; 393 394 /* 395 * Clamp width/height to syscons maximums 396 */ 397 if (vi->vi_width > COL) 398 vi->vi_width = COL; 399 if (vi->vi_height > ROW) 400 vi->vi_height = ROW; 401 402 sc->sc_xmargin = (sc->sc_width - (vi->vi_width * vi->vi_cwidth)) / 2; 403 sc->sc_ymargin = (sc->sc_height - (vi->vi_height * vi->vi_cheight))/2; 404 405 /* 406 * Avoid huge amounts of conditional code in syscons by 407 * defining a dummy h/w text display buffer. 408 */ 409 adp->va_window = (vm_offset_t) ofwfb_static_window; 410 411 /* 412 * Enable future font-loading and flag color support, as well as 413 * adding V_ADP_MODECHANGE so that we ofwfb_set_mode() gets called 414 * when the X server shuts down. This enables us to get the console 415 * back when X disappears. 416 */ 417 adp->va_flags |= V_ADP_FONT | V_ADP_COLOR | V_ADP_MODECHANGE; 418 419 ofwfb_set_mode(&sc->sc_va, 0); 420 421 vid_register(&sc->sc_va); 422 423 return (0); 424} 425 426static int 427ofwfb_get_info(video_adapter_t *adp, int mode, video_info_t *info) 428{ 429 bcopy(&adp->va_info, info, sizeof(*info)); 430 return (0); 431} 432 433static int 434ofwfb_query_mode(video_adapter_t *adp, video_info_t *info) 435{ 436 TODO; 437 return (0); 438} 439 440static int 441ofwfb_set_mode(video_adapter_t *adp, int mode) 442{ 443 struct ofwfb_softc *sc; 444 char name[64]; 445 ihandle_t ih; 446 int i, retval; 447 448 sc = (struct ofwfb_softc *)adp; 449 450 /* 451 * Open the display device, which will initialize it. 452 */ 453 454 memset(name, 0, sizeof(name)); 455 OF_package_to_path(sc->sc_node, name, sizeof(name)); 456 ih = OF_open(name); 457 458 if (sc->sc_depth == 8) { 459 /* 460 * Install the ISO6429 colormap - older OFW systems 461 * don't do this by default 462 */ 463 for (i = 0; i < 16; i++) { 464 OF_call_method("color!", ih, 4, 1, 465 ofwfb_cmap[i].red, 466 ofwfb_cmap[i].green, 467 ofwfb_cmap[i].blue, 468 i, 469 &retval); 470 } 471 } 472 473 ofwfb_blank_display(&sc->sc_va, V_DISPLAY_ON); 474 475 return (0); 476} 477 478static int 479ofwfb_save_font(video_adapter_t *adp, int page, int size, int width, 480 u_char *data, int c, int count) 481{ 482 TODO; 483 return (0); 484} 485 486static int 487ofwfb_load_font(video_adapter_t *adp, int page, int size, int width, 488 u_char *data, int c, int count) 489{ 490 struct ofwfb_softc *sc; 491 492 sc = (struct ofwfb_softc *)adp; 493 494 /* 495 * syscons code has already determined that current width/height 496 * are unchanged for this new font 497 */ 498 sc->sc_font = data; 499 return (0); 500} 501 502static int 503ofwfb_show_font(video_adapter_t *adp, int page) 504{ 505 506 return (0); 507} 508 509static int 510ofwfb_save_palette(video_adapter_t *adp, u_char *palette) 511{ 512 /* TODO; */ 513 return (0); 514} 515 516static int 517ofwfb_load_palette(video_adapter_t *adp, u_char *palette) 518{ 519 /* TODO; */ 520 return (0); 521} 522 523static int 524ofwfb_set_border8(video_adapter_t *adp, int border) 525{ 526 struct ofwfb_softc *sc; 527 int i, j; 528 uint8_t *addr; 529 uint8_t bground; 530 531 sc = (struct ofwfb_softc *)adp; 532 533 bground = ofwfb_background(border); 534 535 /* Set top margin */ 536 addr = (uint8_t *) sc->sc_addr; 537 for (i = 0; i < sc->sc_ymargin; i++) { 538 for (j = 0; j < sc->sc_width; j++) { 539 *(addr + j) = bground; 540 } 541 addr += sc->sc_stride; 542 } 543 544 /* bottom margin */ 545 addr = (uint8_t *) sc->sc_addr + (sc->sc_height - sc->sc_ymargin)*sc->sc_stride; 546 for (i = 0; i < sc->sc_ymargin; i++) { 547 for (j = 0; j < sc->sc_width; j++) { 548 *(addr + j) = bground; 549 } 550 addr += sc->sc_stride; 551 } 552 553 /* remaining left and right borders */ 554 addr = (uint8_t *) sc->sc_addr + sc->sc_ymargin*sc->sc_stride; 555 for (i = 0; i < sc->sc_height - 2*sc->sc_xmargin; i++) { 556 for (j = 0; j < sc->sc_xmargin; j++) { 557 *(addr + j) = bground; 558 *(addr + j + sc->sc_width - sc->sc_xmargin) = bground; 559 } 560 addr += sc->sc_stride; 561 } 562 563 return (0); 564} 565 566static int 567ofwfb_set_border32(video_adapter_t *adp, int border) 568{ 569 /* XXX Be lazy for now and blank entire screen */ 570 return (ofwfb_blank_display32(adp, border)); 571} 572 573static int 574ofwfb_set_border(video_adapter_t *adp, int border) 575{ 576 struct ofwfb_softc *sc; 577 578 sc = (struct ofwfb_softc *)adp; 579 580 return ((*sc->sc_set_border)(adp, border)); 581} 582 583static int 584ofwfb_save_state(video_adapter_t *adp, void *p, size_t size) 585{ 586 TODO; 587 return (0); 588} 589 590static int 591ofwfb_load_state(video_adapter_t *adp, void *p) 592{ 593 TODO; 594 return (0); 595} 596 597static int 598ofwfb_set_win_org(video_adapter_t *adp, off_t offset) 599{ 600 TODO; 601 return (0); 602} 603 604static int 605ofwfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row) 606{ 607 *col = 0; 608 *row = 0; 609 610 return (0); 611} 612 613static int 614ofwfb_set_hw_cursor(video_adapter_t *adp, int col, int row) 615{ 616 617 return (0); 618} 619 620static int 621ofwfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height, 622 int celsize, int blink) 623{ 624 return (0); 625} 626 627static int 628ofwfb_blank_display8(video_adapter_t *adp, int mode) 629{ 630 struct ofwfb_softc *sc; 631 int i; 632 uint32_t *addr; 633 uint32_t color; 634 uint32_t end; 635 636 sc = (struct ofwfb_softc *)adp; 637 addr = (uint32_t *) sc->sc_addr; 638 end = (sc->sc_stride/4) * sc->sc_height; 639 640 /* Splat 4 pixels at once. */ 641 color = (ofwfb_background(SC_NORM_ATTR) << 24) | 642 (ofwfb_background(SC_NORM_ATTR) << 16) | 643 (ofwfb_background(SC_NORM_ATTR) << 8) | 644 (ofwfb_background(SC_NORM_ATTR)); 645 646 for (i = 0; i < end; i++) 647 *(addr + i) = color; 648 649 return (0); 650} 651 652static int 653ofwfb_blank_display32(video_adapter_t *adp, int mode) 654{ 655 struct ofwfb_softc *sc; 656 int i; 657 uint32_t *addr, blank; 658 659 sc = (struct ofwfb_softc *)adp; 660 addr = (uint32_t *) sc->sc_addr; 661 blank = ofwfb_pix32(sc, ofwfb_background(SC_NORM_ATTR)); 662 663 for (i = 0; i < (sc->sc_stride/4)*sc->sc_height; i++) 664 *(addr + i) = blank; 665 666 return (0); 667} 668 669static int 670ofwfb_blank_display(video_adapter_t *adp, int mode) 671{ 672 struct ofwfb_softc *sc; 673 674 sc = (struct ofwfb_softc *)adp; 675 676 return ((*sc->sc_blank)(adp, mode)); 677} 678 679static int 680ofwfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr, 681 int prot, vm_memattr_t *memattr) 682{ 683 struct ofwfb_softc *sc; 684 int i; 685 686 sc = (struct ofwfb_softc *)adp; 687 688 /* 689 * Make sure the requested address lies within the PCI device's 690 * assigned addrs 691 */ 692 for (i = 0; i < sc->sc_num_pciaddrs; i++) 693 if (offset >= sc->sc_pciaddrs[i].phys_lo && 694 offset < (sc->sc_pciaddrs[i].phys_lo + sc->sc_pciaddrs[i].size_lo)) 695 { 696 /* 697 * If this is a prefetchable BAR, we can (and should) 698 * enable write-combining. 699 */ 700 if (sc->sc_pciaddrs[i].phys_hi & 701 OFW_PCI_PHYS_HI_PREFETCHABLE) 702 *memattr = VM_MEMATTR_WRITE_COMBINING; 703 704 *paddr = offset; 705 return (0); 706 } 707 708 /* 709 * Hack for Radeon... 710 */ 711 if (ofwfb_ignore_mmap_checks) { 712 *paddr = offset; 713 return (0); 714 } 715 716 /* 717 * This might be a legacy VGA mem request: if so, just point it at the 718 * framebuffer, since it shouldn't be touched 719 */ 720 if (offset < sc->sc_stride*sc->sc_height) { 721 *paddr = sc->sc_addr + offset; 722 return (0); 723 } 724 725 /* 726 * Error if we didn't have a better idea. 727 */ 728 if (sc->sc_num_pciaddrs == 0) 729 return (ENOMEM); 730 731 return (EINVAL); 732} 733 734static int 735ofwfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data) 736{ 737 738 return (0); 739} 740 741static int 742ofwfb_clear(video_adapter_t *adp) 743{ 744 TODO; 745 return (0); 746} 747 748static int 749ofwfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy) 750{ 751 TODO; 752 return (0); 753} 754 755static int 756ofwfb_bitblt(video_adapter_t *adp, ...) 757{ 758 TODO; 759 return (0); 760} 761 762static int 763ofwfb_diag(video_adapter_t *adp, int level) 764{ 765 TODO; 766 return (0); 767} 768 769static int 770ofwfb_save_cursor_palette(video_adapter_t *adp, u_char *palette) 771{ 772 TODO; 773 return (0); 774} 775 776static int 777ofwfb_load_cursor_palette(video_adapter_t *adp, u_char *palette) 778{ 779 TODO; 780 return (0); 781} 782 783static int 784ofwfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n) 785{ 786 TODO; 787 return (0); 788} 789 790static int 791ofwfb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a, 792 int size, int bpp, int bit_ltor, int byte_ltor) 793{ 794 TODO; 795 return (0); 796} 797 798static int 799ofwfb_putc8(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a) 800{ 801 struct ofwfb_softc *sc; 802 int row; 803 int col; 804 int i; 805 uint32_t *addr; 806 u_char *p, fg, bg; 807 union { 808 uint32_t l; 809 uint8_t c[4]; 810 } ch1, ch2; 811 812 813 sc = (struct ofwfb_softc *)adp; 814 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight; 815 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth; 816 p = sc->sc_font + c*sc->sc_font_height; 817 addr = (u_int32_t *)((uintptr_t)sc->sc_addr 818 + (row + sc->sc_ymargin)*sc->sc_stride 819 + col + sc->sc_xmargin); 820 821 fg = ofwfb_foreground(a); 822 bg = ofwfb_background(a); 823 824 for (i = 0; i < sc->sc_font_height; i++) { 825 u_char fline = p[i]; 826 827 /* 828 * Assume that there is more background than foreground 829 * in characters and init accordingly 830 */ 831 ch1.l = ch2.l = (bg << 24) | (bg << 16) | (bg << 8) | bg; 832 833 /* 834 * Calculate 2 x 4-chars at a time, and then 835 * write these out. 836 */ 837 if (fline & 0x80) ch1.c[0] = fg; 838 if (fline & 0x40) ch1.c[1] = fg; 839 if (fline & 0x20) ch1.c[2] = fg; 840 if (fline & 0x10) ch1.c[3] = fg; 841 842 if (fline & 0x08) ch2.c[0] = fg; 843 if (fline & 0x04) ch2.c[1] = fg; 844 if (fline & 0x02) ch2.c[2] = fg; 845 if (fline & 0x01) ch2.c[3] = fg; 846 847 addr[0] = ch1.l; 848 addr[1] = ch2.l; 849 addr += (sc->sc_stride / sizeof(u_int32_t)); 850 } 851 852 return (0); 853} 854 855static int 856ofwfb_putc32(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a) 857{ 858 struct ofwfb_softc *sc; 859 int row; 860 int col; 861 int i, j, k; 862 uint32_t *addr, fg, bg; 863 u_char *p; 864 865 sc = (struct ofwfb_softc *)adp; 866 row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight; 867 col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth; 868 p = sc->sc_font + c*sc->sc_font_height; 869 addr = (uint32_t *)sc->sc_addr 870 + (row + sc->sc_ymargin)*(sc->sc_stride/4) 871 + col + sc->sc_xmargin; 872 873 fg = ofwfb_pix32(sc, ofwfb_foreground(a)); 874 bg = ofwfb_pix32(sc, ofwfb_background(a)); 875 876 for (i = 0; i < sc->sc_font_height; i++) { 877 for (j = 0, k = 7; j < 8; j++, k--) { 878 if ((p[i] & (1 << k)) == 0) 879 *(addr + j) = bg; 880 else 881 *(addr + j) = fg; 882 } 883 addr += (sc->sc_stride/4); 884 } 885 886 return (0); 887} 888 889static int 890ofwfb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a) 891{ 892 struct ofwfb_softc *sc; 893 894 sc = (struct ofwfb_softc *)adp; 895 896 return ((*sc->sc_putc)(adp, off, c, a)); 897} 898 899static int 900ofwfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len) 901{ 902 int i; 903 904 for (i = 0; i < len; i++) { 905 ofwfb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8); 906 } 907 return (0); 908} 909 910static int 911ofwfb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image, 912 uint32_t pixel_mask, int size, int width) 913{ 914 struct ofwfb_softc *sc; 915 916 sc = (struct ofwfb_softc *)adp; 917 918 return ((*sc->sc_putm)(adp, x, y, pixel_image, pixel_mask, size, 919 width)); 920} 921 922static int 923ofwfb_putm8(video_adapter_t *adp, int x, int y, uint8_t *pixel_image, 924 uint32_t pixel_mask, int size, int width) 925{ 926 struct ofwfb_softc *sc; 927 int i, j, k; 928 uint8_t *addr; 929 u_char fg, bg; 930 931 sc = (struct ofwfb_softc *)adp; 932 addr = (u_int8_t *)((uintptr_t)sc->sc_addr 933 + (y + sc->sc_ymargin)*sc->sc_stride 934 + x + sc->sc_xmargin); 935 936 fg = ofwfb_foreground(SC_NORM_ATTR); 937 bg = ofwfb_background(SC_NORM_ATTR); 938 939 for (i = 0; i < size && i+y < sc->sc_height - 2*sc->sc_ymargin; i++) { 940 /* 941 * Calculate 2 x 4-chars at a time, and then 942 * write these out. 943 */ 944 for (j = 0, k = width; j < 8; j++, k--) { 945 if (x + j >= sc->sc_width - 2*sc->sc_xmargin) 946 continue; 947 948 if (pixel_image[i] & (1 << k)) 949 addr[j] = (addr[j] == fg) ? bg : fg; 950 } 951 952 addr += (sc->sc_stride / sizeof(u_int8_t)); 953 } 954 955 return (0); 956} 957 958static int 959ofwfb_putm32(video_adapter_t *adp, int x, int y, uint8_t *pixel_image, 960 uint32_t pixel_mask, int size, int width) 961{ 962 struct ofwfb_softc *sc; 963 int i, j, k; 964 uint32_t fg, bg; 965 uint32_t *addr; 966 967 sc = (struct ofwfb_softc *)adp; 968 addr = (uint32_t *)sc->sc_addr 969 + (y + sc->sc_ymargin)*(sc->sc_stride/4) 970 + x + sc->sc_xmargin; 971 972 fg = ofwfb_pix32(sc, ofwfb_foreground(SC_NORM_ATTR)); 973 bg = ofwfb_pix32(sc, ofwfb_background(SC_NORM_ATTR)); 974 975 for (i = 0; i < size && i+y < sc->sc_height - 2*sc->sc_ymargin; i++) { 976 for (j = 0, k = width; j < 8; j++, k--) { 977 if (x + j >= sc->sc_width - 2*sc->sc_xmargin) 978 continue; 979 980 if (pixel_image[i] & (1 << k)) 981 *(addr + j) = (*(addr + j) == fg) ? bg : fg; 982 } 983 addr += (sc->sc_stride/4); 984 } 985 986 return (0); 987} 988 989/* 990 * Define the syscons nexus device attachment 991 */ 992static void 993ofwfb_scidentify(driver_t *driver, device_t parent) 994{ 995 device_t child; 996 997 /* 998 * The Nintendo Wii doesn't have open firmware, so don't probe ofwfb 999 * because otherwise we will crash. 1000 */ 1001 if (strcmp(installed_platform(), "wii") == 0) 1002 return; 1003 /* 1004 * Add with a priority guaranteed to make it last on 1005 * the device list 1006 */ 1007 child = BUS_ADD_CHILD(parent, INT_MAX, SC_DRIVER_NAME, 0); 1008} 1009 1010static int 1011ofwfb_scprobe(device_t dev) 1012{ 1013 int error; 1014 1015 device_set_desc(dev, "System console"); 1016 1017 error = sc_probe_unit(device_get_unit(dev), 1018 device_get_flags(dev) | SC_AUTODETECT_KBD); 1019 if (error != 0) 1020 return (error); 1021 1022 /* This is a fake device, so make sure we added it ourselves */ 1023 return (BUS_PROBE_NOWILDCARD); 1024} 1025 1026static int 1027ofwfb_scattach(device_t dev) 1028{ 1029 return (sc_attach_unit(device_get_unit(dev), 1030 device_get_flags(dev) | SC_AUTODETECT_KBD)); 1031} 1032 1033static device_method_t ofwfb_sc_methods[] = { 1034 DEVMETHOD(device_identify, ofwfb_scidentify), 1035 DEVMETHOD(device_probe, ofwfb_scprobe), 1036 DEVMETHOD(device_attach, ofwfb_scattach), 1037 { 0, 0 } 1038}; 1039 1040static driver_t ofwfb_sc_driver = { 1041 SC_DRIVER_NAME, 1042 ofwfb_sc_methods, 1043 sizeof(sc_softc_t), 1044}; 1045 1046static devclass_t sc_devclass; 1047 1048DRIVER_MODULE(ofwfb, nexus, ofwfb_sc_driver, sc_devclass, 0, 0); 1049 1050/* 1051 * Define a stub keyboard driver in case one hasn't been 1052 * compiled into the kernel 1053 */ 1054#include <sys/kbio.h> 1055#include <dev/kbd/kbdreg.h> 1056 1057static int dummy_kbd_configure(int flags); 1058 1059keyboard_switch_t dummysw; 1060 1061static int 1062dummy_kbd_configure(int flags) 1063{ 1064 1065 return (0); 1066} 1067KEYBOARD_DRIVER(dummy, dummysw, dummy_kbd_configure); 1068 1069/* 1070 * Utility routines from <dev/fb/fbreg.h> 1071 */ 1072void 1073ofwfb_bcopy(const void *s, void *d, size_t c) 1074{ 1075 bcopy(s, d, c); 1076} 1077 1078void 1079ofwfb_bzero(void *d, size_t c) 1080{ 1081 bzero(d, c); 1082} 1083 1084void 1085ofwfb_fillw(int pat, void *base, size_t cnt) 1086{ 1087 u_int16_t *bptr = base; 1088 1089 while (cnt--) 1090 *bptr++ = pat; 1091} 1092 1093u_int16_t 1094ofwfb_readw(u_int16_t *addr) 1095{ 1096 return (*addr); 1097} 1098 1099void 1100ofwfb_writew(u_int16_t *addr, u_int16_t val) 1101{ 1102 *addr = val; 1103} 1104