sys/arm/broadcom/bcm2835/bcm2835_fb.c

   1 /*-
   2  * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
   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/bus.h>
  33 #include <sys/consio.h>
  34 #include <sys/fbio.h>
  35 #include <sys/kdb.h>
  36 #include <sys/kernel.h>
  37 #include <sys/malloc.h>
  38 #include <sys/module.h>
  39
  40 #include <vm/vm.h>
  41 #include <vm/pmap.h>
  42
  43 #include <dev/fb/fbreg.h>
  44 #include <dev/fdt/fdt_common.h>
  45 #include <dev/ofw/ofw_bus.h>
  46 #include <dev/ofw/ofw_bus_subr.h>
  47 #include <dev/syscons/syscons.h>
  48
  49 #include <arm/broadcom/bcm2835/bcm2835_mbox_prop.h>
  50
  51 #include "mbox_if.h"
  52
  53 struct argb {
  54         uint8_t         a;
  55         uint8_t         r;
  56         uint8_t         g;
  57         uint8_t         b;
  58 };
  59
  60 static struct argb bcmfb_palette[16] = {
  61         {0x00, 0x00, 0x00, 0x00},
  62         {0x00, 0x00, 0x00, 0xaa},
  63         {0x00, 0x00, 0xaa, 0x00},
  64         {0x00, 0x00, 0xaa, 0xaa},
  65         {0x00, 0xaa, 0x00, 0x00},
  66         {0x00, 0xaa, 0x00, 0xaa},
  67         {0x00, 0xaa, 0x55, 0x00},
  68         {0x00, 0xaa, 0xaa, 0xaa},
  69         {0x00, 0x55, 0x55, 0x55},
  70         {0x00, 0x55, 0x55, 0xff},
  71         {0x00, 0x55, 0xff, 0x55},
  72         {0x00, 0x55, 0xff, 0xff},
  73         {0x00, 0xff, 0x55, 0x55},
  74         {0x00, 0xff, 0x55, 0xff},
  75         {0x00, 0xff, 0xff, 0x55},
  76         {0x00, 0xff, 0xff, 0xff}
  77 };
  78
  79 /* mouse pointer from dev/syscons/scgfbrndr.c */
  80 static u_char mouse_pointer[16] = {
  81         0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
  82         0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
  83 };
  84
  85 #define BCMFB_FONT_HEIGHT       16
  86 #define BCMFB_FONT_WIDTH        8
  87 #define FB_WIDTH                640
  88 #define FB_HEIGHT               480
  89 #define FB_DEPTH                24
  90
  91 struct bcmsc_softc {
  92         /* Videoadpater part */
  93         video_adapter_t va;
  94
  95         intptr_t        fb_addr;
  96         intptr_t        fb_paddr;
  97         unsigned int    fb_size;
  98
  99         unsigned int    height;
 100         unsigned int    width;
 101         unsigned int    depth;
 102         unsigned int    stride;
 103
 104         unsigned int    xmargin;
 105         unsigned int    ymargin;
 106
 107         unsigned char   *font;
 108         int             fbswap;
 109         int             initialized;
 110 };
 111
 112 static struct bcmsc_softc bcmsc;
 113
 114 static int bcm_fb_probe(device_t);
 115 static int bcm_fb_attach(device_t);
 116 static void bcmfb_update_margins(video_adapter_t *adp);
 117 static int bcmfb_configure(int);
 118
 119 static int
 120 bcm_fb_probe(device_t dev)
 121 {
 122         int error;
 123
 124         if (!ofw_bus_is_compatible(dev, "broadcom,bcm2835-fb"))
 125                 return (ENXIO);
 126         device_set_desc(dev, "BCM2835 framebuffer device");
 127         error = sc_probe_unit(device_get_unit(dev),
 128             device_get_flags(dev) | SC_AUTODETECT_KBD);
 129         if (error != 0)
 130                 return (error);
 131
 132         return (BUS_PROBE_DEFAULT);
 133 }
 134
 135 static int
 136 bcm_fb_attach(device_t dev)
 137 {
 138         struct bcm2835_fb_config fb;
 139         struct bcmsc_softc *sc;
 140
 141         sc = (struct bcmsc_softc *)vid_get_adapter(vid_find_adapter(
 142             "bcmfb", 0));
 143         if (sc != NULL)
 144                 device_set_softc(dev, sc);
 145         else
 146                 sc = device_get_softc(dev);
 147
 148         memset(&fb, 0, sizeof(fb));
 149         if (bcm2835_mbox_fb_get_w_h(&fb) != 0)
 150                 return (ENXIO);
 151         fb.bpp = FB_DEPTH;
 152         fb.vxres = fb.xres;
 153         fb.vyres = fb.yres;
 154         fb.xoffset = fb.yoffset = 0;
 155         if (bcm2835_mbox_fb_init(&fb) != 0)
 156                 return (ENXIO);
 157
 158         sc->fb_addr = (intptr_t)pmap_mapdev(fb.base, fb.size);
 159         sc->fb_paddr = fb.base;
 160         sc->fb_size = fb.size;
 161         sc->depth = fb.bpp;
 162         sc->stride = fb.pitch;
 163         sc->width = fb.xres;
 164         sc->height = fb.yres;
 165         bcmfb_update_margins(&sc->va);
 166
 167         if (sc_attach_unit(device_get_unit(dev),
 168             device_get_flags(dev) | SC_AUTODETECT_KBD) != 0) {
 169                 device_printf(dev, "failed to attach syscons\n");
 170                 return (ENXIO);
 171         }
 172
 173         device_printf(dev, "%dx%d(%dx%d@%d,%d) %dbpp\n", fb.xres, fb.yres,
 174             fb.vxres, fb.vyres, fb.xoffset, fb.yoffset, fb.bpp);
 175         device_printf(dev,
 176             "fbswap: %d, pitch %d, base 0x%08x, screen_size %d\n",
 177             sc->fbswap, fb.pitch, fb.base, fb.size);
 178
 179         return (0);
 180 }
 181
 182 static device_method_t bcm_fb_methods[] = {
 183         /* Device interface */
 184         DEVMETHOD(device_probe,         bcm_fb_probe),
 185         DEVMETHOD(device_attach,        bcm_fb_attach),
 186
 187         { 0, 0 }
 188 };
 189
 190 static devclass_t bcm_fb_devclass;
 191
 192 static driver_t bcm_fb_driver = {
 193         "fb",
 194         bcm_fb_methods,
 195         sizeof(struct bcmsc_softc),
 196 };
 197
 198 DRIVER_MODULE(bcm2835fb, ofwbus, bcm_fb_driver, bcm_fb_devclass, 0, 0);
 199
 200 /*
 201  * Video driver routines and glue.
 202  */
 203 static vi_probe_t               bcmfb_probe;
 204 static vi_init_t                bcmfb_init;
 205 static vi_get_info_t            bcmfb_get_info;
 206 static vi_query_mode_t          bcmfb_query_mode;
 207 static vi_set_mode_t            bcmfb_set_mode;
 208 static vi_save_font_t           bcmfb_save_font;
 209 static vi_load_font_t           bcmfb_load_font;
 210 static vi_show_font_t           bcmfb_show_font;
 211 static vi_save_palette_t        bcmfb_save_palette;
 212 static vi_load_palette_t        bcmfb_load_palette;
 213 static vi_set_border_t          bcmfb_set_border;
 214 static vi_save_state_t          bcmfb_save_state;
 215 static vi_load_state_t          bcmfb_load_state;
 216 static vi_set_win_org_t         bcmfb_set_win_org;
 217 static vi_read_hw_cursor_t      bcmfb_read_hw_cursor;
 218 static vi_set_hw_cursor_t       bcmfb_set_hw_cursor;
 219 static vi_set_hw_cursor_shape_t bcmfb_set_hw_cursor_shape;
 220 static vi_blank_display_t       bcmfb_blank_display;
 221 static vi_mmap_t                bcmfb_mmap;
 222 static vi_ioctl_t               bcmfb_ioctl;
 223 static vi_clear_t               bcmfb_clear;
 224 static vi_fill_rect_t           bcmfb_fill_rect;
 225 static vi_bitblt_t              bcmfb_bitblt;
 226 static vi_diag_t                bcmfb_diag;
 227 static vi_save_cursor_palette_t bcmfb_save_cursor_palette;
 228 static vi_load_cursor_palette_t bcmfb_load_cursor_palette;
 229 static vi_copy_t                bcmfb_copy;
 230 static vi_putp_t                bcmfb_putp;
 231 static vi_putc_t                bcmfb_putc;
 232 static vi_puts_t                bcmfb_puts;
 233 static vi_putm_t                bcmfb_putm;
 234
 235 static video_switch_t bcmfbvidsw = {
 236         .probe                  = bcmfb_probe,
 237         .init                   = bcmfb_init,
 238         .get_info               = bcmfb_get_info,
 239         .query_mode             = bcmfb_query_mode,
 240         .set_mode               = bcmfb_set_mode,
 241         .save_font              = bcmfb_save_font,
 242         .load_font              = bcmfb_load_font,
 243         .show_font              = bcmfb_show_font,
 244         .save_palette           = bcmfb_save_palette,
 245         .load_palette           = bcmfb_load_palette,
 246         .set_border             = bcmfb_set_border,
 247         .save_state             = bcmfb_save_state,
 248         .load_state             = bcmfb_load_state,
 249         .set_win_org            = bcmfb_set_win_org,
 250         .read_hw_cursor         = bcmfb_read_hw_cursor,
 251         .set_hw_cursor          = bcmfb_set_hw_cursor,
 252         .set_hw_cursor_shape    = bcmfb_set_hw_cursor_shape,
 253         .blank_display          = bcmfb_blank_display,
 254         .mmap                   = bcmfb_mmap,
 255         .ioctl                  = bcmfb_ioctl,
 256         .clear                  = bcmfb_clear,
 257         .fill_rect              = bcmfb_fill_rect,
 258         .bitblt                 = bcmfb_bitblt,
 259         .diag                   = bcmfb_diag,
 260         .save_cursor_palette    = bcmfb_save_cursor_palette,
 261         .load_cursor_palette    = bcmfb_load_cursor_palette,
 262         .copy                   = bcmfb_copy,
 263         .putp                   = bcmfb_putp,
 264         .putc                   = bcmfb_putc,
 265         .puts                   = bcmfb_puts,
 266         .putm                   = bcmfb_putm,
 267 };
 268
 269 VIDEO_DRIVER(bcmfb, bcmfbvidsw, bcmfb_configure);
 270
 271 static vr_init_t bcmrend_init;
 272 static vr_clear_t bcmrend_clear;
 273 static vr_draw_border_t bcmrend_draw_border;
 274 static vr_draw_t bcmrend_draw;
 275 static vr_set_cursor_t bcmrend_set_cursor;
 276 static vr_draw_cursor_t bcmrend_draw_cursor;
 277 static vr_blink_cursor_t bcmrend_blink_cursor;
 278 static vr_set_mouse_t bcmrend_set_mouse;
 279 static vr_draw_mouse_t bcmrend_draw_mouse;
 280
 281 /*
 282  * We use our own renderer; this is because we must emulate a hardware
 283  * cursor.
 284  */
 285 static sc_rndr_sw_t bcmrend = {
 286         bcmrend_init,
 287         bcmrend_clear,
 288         bcmrend_draw_border,
 289         bcmrend_draw,
 290         bcmrend_set_cursor,
 291         bcmrend_draw_cursor,
 292         bcmrend_blink_cursor,
 293         bcmrend_set_mouse,
 294         bcmrend_draw_mouse
 295 };
 296
 297 RENDERER(bcmfb, 0, bcmrend, gfb_set);
 298 RENDERER_MODULE(bcmfb, gfb_set);
 299
 300 static void
 301 bcmrend_init(scr_stat* scp)
 302 {
 303 }
 304
 305 static void
 306 bcmrend_clear(scr_stat* scp, int c, int attr)
 307 {
 308 }
 309
 310 static void
 311 bcmrend_draw_border(scr_stat* scp, int color)
 312 {
 313 }
 314
 315 static void
 316 bcmrend_draw(scr_stat* scp, int from, int count, int flip)
 317 {
 318         video_adapter_t* adp = scp->sc->adp;
 319         int i, c, a;
 320
 321         if (!flip) {
 322                 /* Normal printing */
 323                 vidd_puts(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
 324         } else {
 325                 /* This is for selections and such: invert the color attribute */
 326                 for (i = count; i-- > 0; ++from) {
 327                         c = sc_vtb_getc(&scp->vtb, from);
 328                         a = sc_vtb_geta(&scp->vtb, from) >> 8;
 329                         vidd_putc(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
 330                 }
 331         }
 332 }
 333
 334 static void
 335 bcmrend_set_cursor(scr_stat* scp, int base, int height, int blink)
 336 {
 337 }
 338
 339 static void
 340 bcmrend_draw_cursor(scr_stat* scp, int off, int blink, int on, int flip)
 341 {
 342         int bytes, col, i, j, row;
 343         struct bcmsc_softc *sc;
 344         uint8_t *addr;
 345         video_adapter_t *adp;
 346
 347         adp = scp->sc->adp;
 348         sc = (struct bcmsc_softc *)adp;
 349
 350         if (scp->curs_attr.height <= 0)
 351                 return;
 352
 353         if (sc->fb_addr == 0)
 354                 return;
 355
 356         if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
 357                 return;
 358
 359         /* calculate the coordinates in the video buffer */
 360         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
 361         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
 362
 363         addr = (uint8_t *)sc->fb_addr
 364             + (row + sc->ymargin)*(sc->stride)
 365             + (sc->depth/8) * (col + sc->xmargin);
 366
 367         bytes = sc->depth / 8;
 368         /* our cursor consists of simply inverting the char under it */
 369         for (i = 0; i < adp->va_info.vi_cheight; i++) {
 370                 for (j = 0; j < adp->va_info.vi_cwidth; j++) {
 371                         switch (sc->depth) {
 372                         case 32:
 373                         case 24:
 374                                 addr[bytes*j + 2] ^= 0xff;
 375                                 /* FALLTHROUGH */
 376                         case 16:
 377                                 addr[bytes*j + 1] ^= 0xff;
 378                                 addr[bytes*j] ^= 0xff;
 379                                 break;
 380                         default:
 381                                 break;
 382                         }
 383                 }
 384
 385                 addr += sc->stride;
 386         }
 387 }
 388
 389 static void
 390 bcmrend_blink_cursor(scr_stat* scp, int at, int flip)
 391 {
 392 }
 393
 394 static void
 395 bcmrend_set_mouse(scr_stat* scp)
 396 {
 397 }
 398
 399 static void
 400 bcmrend_draw_mouse(scr_stat* scp, int x, int y, int on)
 401 {
 402         vidd_putm(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
 403 }
 404
 405 static uint16_t bcmfb_static_window[ROW*COL];
 406 extern u_char dflt_font_16[];
 407
 408 /*
 409  * Update videoadapter settings after changing resolution
 410  */
 411 static void
 412 bcmfb_update_margins(video_adapter_t *adp)
 413 {
 414         struct bcmsc_softc *sc;
 415         video_info_t *vi;
 416
 417         sc = (struct bcmsc_softc *)adp;
 418         vi = &adp->va_info;
 419
 420         sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
 421         sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight)) / 2;
 422 }
 423
 424 static int
 425 bcmfb_configure(int flags)
 426 {
 427         char bootargs[2048], *n, *p, *v;
 428         pcell_t cell;
 429         phandle_t chosen, display, root;
 430         struct bcmsc_softc *sc;
 431
 432         sc = &bcmsc;
 433         if (sc->initialized)
 434                 return (0);
 435
 436         sc->width = 0;
 437         sc->height = 0;
 438
 439         /*
 440          * It seems there is no way to let syscons framework know
 441          * that framebuffer resolution has changed. So just try
 442          * to fetch data from FDT bootargs, FDT display data and
 443          * finally go with defaults if everything else has failed.
 444          */
 445         chosen = OF_finddevice("/chosen");
 446         if (chosen != 0 &&
 447             OF_getprop(chosen, "bootargs", &bootargs, sizeof(bootargs)) > 0) {
 448                 p = bootargs;
 449                 while ((v = strsep(&p, " ")) != NULL) {
 450                         if (*v == '\0')
 451                                 continue;
 452                         n = strsep(&v, "=");
 453                         if (strcmp(n, "bcm2708_fb.fbwidth") == 0 && v != NULL)
 454                                 sc->width = (unsigned int)strtol(v, NULL, 0);
 455                         else if (strcmp(n, "bcm2708_fb.fbheight") == 0 &&
 456                             v != NULL)
 457                                 sc->height = (unsigned int)strtol(v, NULL, 0);
 458                         else if (strcmp(n, "bcm2708_fb.fbswap") == 0 &&
 459                             v != NULL)
 460                                 if (*v == '1')
 461                                         sc->fbswap = 1;
 462                 }
 463         }
 464
 465         root = OF_finddevice("/");
 466         if ((root != 0) &&
 467             (display = fdt_find_compatible(root, "broadcom,bcm2835-fb", 1))) {
 468                 if (sc->width == 0) {
 469                         if ((OF_getprop(display, "broadcom,width",
 470                             &cell, sizeof(cell))) > 0)
 471                                 sc->width = (int)fdt32_to_cpu(cell);
 472                 }
 473
 474                 if (sc->height == 0) {
 475                         if ((OF_getprop(display, "broadcom,height",
 476                             &cell, sizeof(cell))) > 0)
 477                                 sc->height = (int)fdt32_to_cpu(cell);
 478                 }
 479         }
 480
 481         if (sc->width == 0)
 482                 sc->width = FB_WIDTH;
 483         if (sc->height == 0)
 484                 sc->height = FB_HEIGHT;
 485
 486         bcmfb_init(0, &sc->va, 0);
 487         sc->initialized = 1;
 488
 489         return (0);
 490 }
 491
 492 static int
 493 bcmfb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
 494 {
 495
 496         return (0);
 497 }
 498
 499 static int
 500 bcmfb_init(int unit, video_adapter_t *adp, int flags)
 501 {
 502         struct bcmsc_softc *sc;
 503         video_info_t *vi;
 504
 505         sc = (struct bcmsc_softc *)adp;
 506         vi = &adp->va_info;
 507
 508         vid_init_struct(adp, "bcmfb", -1, unit);
 509
 510         sc->font = dflt_font_16;
 511         vi->vi_cheight = BCMFB_FONT_HEIGHT;
 512         vi->vi_cwidth = BCMFB_FONT_WIDTH;
 513         vi->vi_width = sc->width / vi->vi_cwidth;
 514         vi->vi_height = sc->height / vi->vi_cheight;
 515
 516         /*
 517          * Clamp width/height to syscons maximums
 518          */
 519         if (vi->vi_width > COL)
 520                 vi->vi_width = COL;
 521         if (vi->vi_height > ROW)
 522                 vi->vi_height = ROW;
 523
 524         sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
 525         sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight)) / 2;
 526
 527         adp->va_window = (vm_offset_t) bcmfb_static_window;
 528         adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
 529
 530         vid_register(&sc->va);
 531
 532         return (0);
 533 }
 534
 535 static int
 536 bcmfb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
 537 {
 538         bcopy(&adp->va_info, info, sizeof(*info));
 539         return (0);
 540 }
 541
 542 static int
 543 bcmfb_query_mode(video_adapter_t *adp, video_info_t *info)
 544 {
 545         return (0);
 546 }
 547
 548 static int
 549 bcmfb_set_mode(video_adapter_t *adp, int mode)
 550 {
 551         return (0);
 552 }
 553
 554 static int
 555 bcmfb_save_font(video_adapter_t *adp, int page, int size, int width,
 556     u_char *data, int c, int count)
 557 {
 558         return (0);
 559 }
 560
 561 static int
 562 bcmfb_load_font(video_adapter_t *adp, int page, int size, int width,
 563     u_char *data, int c, int count)
 564 {
 565         struct bcmsc_softc *sc;
 566
 567         sc = (struct bcmsc_softc *)adp;
 568         sc->font = data;
 569
 570         return (0);
 571 }
 572
 573 static int
 574 bcmfb_show_font(video_adapter_t *adp, int page)
 575 {
 576         return (0);
 577 }
 578
 579 static int
 580 bcmfb_save_palette(video_adapter_t *adp, u_char *palette)
 581 {
 582         return (0);
 583 }
 584
 585 static int
 586 bcmfb_load_palette(video_adapter_t *adp, u_char *palette)
 587 {
 588         return (0);
 589 }
 590
 591 static int
 592 bcmfb_set_border(video_adapter_t *adp, int border)
 593 {
 594         return (bcmfb_blank_display(adp, border));
 595 }
 596
 597 static int
 598 bcmfb_save_state(video_adapter_t *adp, void *p, size_t size)
 599 {
 600         return (0);
 601 }
 602
 603 static int
 604 bcmfb_load_state(video_adapter_t *adp, void *p)
 605 {
 606         return (0);
 607 }
 608
 609 static int
 610 bcmfb_set_win_org(video_adapter_t *adp, off_t offset)
 611 {
 612         return (0);
 613 }
 614
 615 static int
 616 bcmfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
 617 {
 618         *col = *row = 0;
 619
 620         return (0);
 621 }
 622
 623 static int
 624 bcmfb_set_hw_cursor(video_adapter_t *adp, int col, int row)
 625 {
 626         return (0);
 627 }
 628
 629 static int
 630 bcmfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
 631     int celsize, int blink)
 632 {
 633         return (0);
 634 }
 635
 636 static int
 637 bcmfb_blank_display(video_adapter_t *adp, int mode)
 638 {
 639
 640         struct bcmsc_softc *sc;
 641
 642         sc = (struct bcmsc_softc *)adp;
 643         if (sc && sc->fb_addr)
 644                 memset((void*)sc->fb_addr, 0, sc->fb_size);
 645
 646         return (0);
 647 }
 648
 649 static int
 650 bcmfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
 651     int prot, vm_memattr_t *memattr)
 652 {
 653         struct bcmsc_softc *sc;
 654
 655         sc = (struct bcmsc_softc *)adp;
 656
 657         /*
 658          * This might be a legacy VGA mem request: if so, just point it at the
 659          * framebuffer, since it shouldn't be touched
 660          */
 661         if (offset < sc->stride*sc->height) {
 662                 *paddr = sc->fb_paddr + offset;
 663                 return (0);
 664         }
 665
 666         return (EINVAL);
 667 }
 668
 669 static int
 670 bcmfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
 671 {
 672         struct bcmsc_softc *sc;
 673         struct fbtype *fb;
 674
 675         sc = (struct bcmsc_softc *)adp;
 676
 677         switch (cmd) {
 678         case FBIOGTYPE:
 679                 fb = (struct fbtype *)data;
 680                 fb->fb_type = FBTYPE_PCIMISC;
 681                 fb->fb_height = sc->height;
 682                 fb->fb_width = sc->width;
 683                 fb->fb_depth = sc->depth;
 684                 if (sc->depth <= 1 || sc->depth > 8)
 685                         fb->fb_cmsize = 0;
 686                 else
 687                         fb->fb_cmsize = 1 << sc->depth;
 688                 fb->fb_size = sc->fb_size;
 689                 break;
 690         default:
 691                 return (fb_commonioctl(adp, cmd, data));
 692         }
 693
 694         return (0);
 695 }
 696
 697 static int
 698 bcmfb_clear(video_adapter_t *adp)
 699 {
 700
 701         return (bcmfb_blank_display(adp, 0));
 702 }
 703
 704 static int
 705 bcmfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
 706 {
 707
 708         return (0);
 709 }
 710
 711 static int
 712 bcmfb_bitblt(video_adapter_t *adp, ...)
 713 {
 714
 715         return (0);
 716 }
 717
 718 static int
 719 bcmfb_diag(video_adapter_t *adp, int level)
 720 {
 721
 722         return (0);
 723 }
 724
 725 static int
 726 bcmfb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
 727 {
 728
 729         return (0);
 730 }
 731
 732 static int
 733 bcmfb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
 734 {
 735
 736         return (0);
 737 }
 738
 739 static int
 740 bcmfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
 741 {
 742
 743         return (0);
 744 }
 745
 746 static int
 747 bcmfb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
 748     int size, int bpp, int bit_ltor, int byte_ltor)
 749 {
 750
 751         return (0);
 752 }
 753
 754 static int
 755 bcmfb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
 756 {
 757         int bytes, col, i, j, k, row;
 758         struct bcmsc_softc *sc;
 759         u_char *p;
 760         uint8_t *addr, fg, bg, color;
 761         uint16_t rgb;
 762
 763         sc = (struct bcmsc_softc *)adp;
 764
 765         if (sc->fb_addr == 0)
 766                 return (0);
 767
 768         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
 769         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
 770         p = sc->font + c*BCMFB_FONT_HEIGHT;
 771         addr = (uint8_t *)sc->fb_addr
 772             + (row + sc->ymargin)*(sc->stride)
 773             + (sc->depth/8) * (col + sc->xmargin);
 774
 775         fg = a & 0xf ;
 776         bg = (a >> 4) & 0xf;
 777
 778         bytes = sc->depth / 8;
 779         for (i = 0; i < BCMFB_FONT_HEIGHT; i++) {
 780                 for (j = 0, k = 7; j < 8; j++, k--) {
 781                         if ((p[i] & (1 << k)) == 0)
 782                                 color = bg;
 783                         else
 784                                 color = fg;
 785
 786                         switch (sc->depth) {
 787                         case 32:
 788                         case 24:
 789                                 if (sc->fbswap) {
 790                                         addr[bytes * j + 0] =
 791                                             bcmfb_palette[color].b;
 792                                         addr[bytes * j + 1] =
 793                                             bcmfb_palette[color].g;
 794                                         addr[bytes * j + 2] =
 795                                             bcmfb_palette[color].r;
 796                                 } else {
 797                                         addr[bytes * j + 0] =
 798                                             bcmfb_palette[color].r;
 799                                         addr[bytes * j + 1] =
 800                                             bcmfb_palette[color].g;
 801                                         addr[bytes * j + 2] =
 802                                             bcmfb_palette[color].b;
 803                                 }
 804                                 if (sc->depth == 32)
 805                                         addr[bytes * j + 3] =
 806                                             bcmfb_palette[color].a;
 807                                 break;
 808                         case 16:
 809                                 rgb = (bcmfb_palette[color].r >> 3) << 11;
 810                                 rgb |= (bcmfb_palette[color].g >> 2) << 5;
 811                                 rgb |= (bcmfb_palette[color].b >> 3);
 812                                 addr[bytes * j] = rgb & 0xff;
 813                                 addr[bytes * j + 1] = (rgb >> 8) & 0xff;
 814                         default:
 815                                 /* Not supported yet */
 816                                 break;
 817                         }
 818                 }
 819
 820                 addr += (sc->stride);
 821         }
 822
 823         return (0);
 824 }
 825
 826 static int
 827 bcmfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
 828 {
 829         int i;
 830
 831         for (i = 0; i < len; i++)
 832                 bcmfb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
 833
 834         return (0);
 835 }
 836
 837 static int
 838 bcmfb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
 839     uint32_t pixel_mask, int size, int width)
 840 {
 841
 842         return (0);
 843 }
 844
 845 /*
 846  * Define a stub keyboard driver in case one hasn't been
 847  * compiled into the kernel
 848  */
 849 #include <sys/kbio.h>
 850 #include <dev/kbd/kbdreg.h>
 851
 852 static int dummy_kbd_configure(int flags);
 853
 854 keyboard_switch_t bcmdummysw;
 855
 856 static int
 857 dummy_kbd_configure(int flags)
 858 {
 859
 860         return (0);
 861 }
 862 KEYBOARD_DRIVER(bcmdummy, bcmdummysw, dummy_kbd_configure);