sys/arm/broadcom/bcm2835/bcm2835_fb.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
   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/cdefs.h>
  30 __FBSDID("$FreeBSD$");
  31
  32 #include <sys/param.h>
  33 #include <sys/systm.h>
  34 #include <sys/bus.h>
  35 #include <sys/consio.h>
  36 #include <sys/fbio.h>
  37 #include <sys/kdb.h>
  38 #include <sys/kernel.h>
  39 #include <sys/malloc.h>
  40 #include <sys/module.h>
  41
  42 #include <vm/vm.h>
  43 #include <vm/pmap.h>
  44
  45 #include <dev/fb/fbreg.h>
  46 #include <dev/ofw/ofw_bus.h>
  47 #include <dev/ofw/ofw_bus_subr.h>
  48 #include <dev/syscons/syscons.h>
  49
  50 #include <arm/broadcom/bcm2835/bcm2835_mbox_prop.h>
  51
  52 #include "mbox_if.h"
  53
  54 struct argb {
  55         uint8_t         a;
  56         uint8_t         r;
  57         uint8_t         g;
  58         uint8_t         b;
  59 };
  60
  61 static struct argb bcmfb_palette[16] = {
  62         {0x00, 0x00, 0x00, 0x00},
  63         {0x00, 0x00, 0x00, 0xaa},
  64         {0x00, 0x00, 0xaa, 0x00},
  65         {0x00, 0x00, 0xaa, 0xaa},
  66         {0x00, 0xaa, 0x00, 0x00},
  67         {0x00, 0xaa, 0x00, 0xaa},
  68         {0x00, 0xaa, 0x55, 0x00},
  69         {0x00, 0xaa, 0xaa, 0xaa},
  70         {0x00, 0x55, 0x55, 0x55},
  71         {0x00, 0x55, 0x55, 0xff},
  72         {0x00, 0x55, 0xff, 0x55},
  73         {0x00, 0x55, 0xff, 0xff},
  74         {0x00, 0xff, 0x55, 0x55},
  75         {0x00, 0xff, 0x55, 0xff},
  76         {0x00, 0xff, 0xff, 0x55},
  77         {0x00, 0xff, 0xff, 0xff}
  78 };
  79
  80 /* mouse pointer from dev/syscons/scgfbrndr.c */
  81 static u_char mouse_pointer[16] = {
  82         0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
  83         0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
  84 };
  85
  86 #define BCMFB_FONT_HEIGHT       16
  87 #define BCMFB_FONT_WIDTH        8
  88 #define FB_WIDTH                640
  89 #define FB_HEIGHT               480
  90 #define FB_DEPTH                24
  91
  92 struct bcmsc_softc {
  93         /* Videoadpater part */
  94         video_adapter_t va;
  95
  96         intptr_t        fb_addr;
  97         intptr_t        fb_paddr;
  98         unsigned int    fb_size;
  99
 100         unsigned int    height;
 101         unsigned int    width;
 102         unsigned int    depth;
 103         unsigned int    stride;
 104
 105         unsigned int    xmargin;
 106         unsigned int    ymargin;
 107
 108         unsigned char   *font;
 109         int             fbswap;
 110         int             initialized;
 111 };
 112
 113 static struct bcmsc_softc bcmsc;
 114
 115 static struct ofw_compat_data compat_data[] = {
 116         {"broadcom,bcm2835-fb",         1},
 117         {"brcm,bcm2708-fb",             1},
 118         {NULL,                          0}
 119 };
 120
 121 static int bcm_fb_probe(device_t);
 122 static int bcm_fb_attach(device_t);
 123 static void bcmfb_update_margins(video_adapter_t *adp);
 124 static int bcmfb_configure(int);
 125
 126 static int
 127 bcm_fb_probe(device_t dev)
 128 {
 129         int error;
 130
 131         if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
 132                 return (ENXIO);
 133
 134         device_set_desc(dev, "BCM2835 framebuffer device");
 135         error = sc_probe_unit(device_get_unit(dev),
 136             device_get_flags(dev) | SC_AUTODETECT_KBD);
 137         if (error != 0)
 138                 return (error);
 139
 140         return (BUS_PROBE_DEFAULT);
 141 }
 142
 143 static int
 144 bcm_fb_attach(device_t dev)
 145 {
 146         struct bcm2835_fb_config fb;
 147         struct bcmsc_softc *sc;
 148
 149         sc = (struct bcmsc_softc *)vid_get_adapter(vid_find_adapter(
 150             "bcmfb", 0));
 151         if (sc != NULL)
 152                 device_set_softc(dev, sc);
 153         else
 154                 sc = device_get_softc(dev);
 155
 156         memset(&fb, 0, sizeof(fb));
 157         if (bcm2835_mbox_fb_get_w_h(&fb) != 0)
 158                 return (ENXIO);
 159         fb.bpp = FB_DEPTH;
 160         fb.vxres = fb.xres;
 161         fb.vyres = fb.yres;
 162         fb.xoffset = fb.yoffset = 0;
 163         if (bcm2835_mbox_fb_init(&fb) != 0)
 164                 return (ENXIO);
 165
 166         sc->fb_addr = (intptr_t)pmap_mapdev(fb.base, fb.size);
 167         sc->fb_paddr = fb.base;
 168         sc->fb_size = fb.size;
 169         sc->depth = fb.bpp;
 170         sc->stride = fb.pitch;
 171         sc->width = fb.xres;
 172         sc->height = fb.yres;
 173         bcmfb_update_margins(&sc->va);
 174
 175         if (sc_attach_unit(device_get_unit(dev),
 176             device_get_flags(dev) | SC_AUTODETECT_KBD) != 0) {
 177                 device_printf(dev, "failed to attach syscons\n");
 178                 return (ENXIO);
 179         }
 180
 181         device_printf(dev, "%dx%d(%dx%d@%d,%d) %dbpp\n", fb.xres, fb.yres,
 182             fb.vxres, fb.vyres, fb.xoffset, fb.yoffset, fb.bpp);
 183         device_printf(dev,
 184             "fbswap: %d, pitch %d, base 0x%08x, screen_size %d\n",
 185             sc->fbswap, fb.pitch, fb.base, fb.size);
 186
 187         return (0);
 188 }
 189
 190 static device_method_t bcm_fb_methods[] = {
 191         /* Device interface */
 192         DEVMETHOD(device_probe,         bcm_fb_probe),
 193         DEVMETHOD(device_attach,        bcm_fb_attach),
 194
 195         { 0, 0 }
 196 };
 197
 198 static devclass_t bcm_fb_devclass;
 199
 200 static driver_t bcm_fb_driver = {
 201         "fb",
 202         bcm_fb_methods,
 203         sizeof(struct bcmsc_softc),
 204 };
 205
 206 DRIVER_MODULE(bcm2835fb, ofwbus, bcm_fb_driver, bcm_fb_devclass, 0, 0);
 207 DRIVER_MODULE(bcm2835fb, simplebus, bcm_fb_driver, bcm_fb_devclass, 0, 0);
 208
 209 /*
 210  * Video driver routines and glue.
 211  */
 212 static vi_probe_t               bcmfb_probe;
 213 static vi_init_t                bcmfb_init;
 214 static vi_get_info_t            bcmfb_get_info;
 215 static vi_query_mode_t          bcmfb_query_mode;
 216 static vi_set_mode_t            bcmfb_set_mode;
 217 static vi_save_font_t           bcmfb_save_font;
 218 static vi_load_font_t           bcmfb_load_font;
 219 static vi_show_font_t           bcmfb_show_font;
 220 static vi_save_palette_t        bcmfb_save_palette;
 221 static vi_load_palette_t        bcmfb_load_palette;
 222 static vi_set_border_t          bcmfb_set_border;
 223 static vi_save_state_t          bcmfb_save_state;
 224 static vi_load_state_t          bcmfb_load_state;
 225 static vi_set_win_org_t         bcmfb_set_win_org;
 226 static vi_read_hw_cursor_t      bcmfb_read_hw_cursor;
 227 static vi_set_hw_cursor_t       bcmfb_set_hw_cursor;
 228 static vi_set_hw_cursor_shape_t bcmfb_set_hw_cursor_shape;
 229 static vi_blank_display_t       bcmfb_blank_display;
 230 static vi_mmap_t                bcmfb_mmap;
 231 static vi_ioctl_t               bcmfb_ioctl;
 232 static vi_clear_t               bcmfb_clear;
 233 static vi_fill_rect_t           bcmfb_fill_rect;
 234 static vi_bitblt_t              bcmfb_bitblt;
 235 static vi_diag_t                bcmfb_diag;
 236 static vi_save_cursor_palette_t bcmfb_save_cursor_palette;
 237 static vi_load_cursor_palette_t bcmfb_load_cursor_palette;
 238 static vi_copy_t                bcmfb_copy;
 239 static vi_putp_t                bcmfb_putp;
 240 static vi_putc_t                bcmfb_putc;
 241 static vi_puts_t                bcmfb_puts;
 242 static vi_putm_t                bcmfb_putm;
 243
 244 static video_switch_t bcmfbvidsw = {
 245         .probe                  = bcmfb_probe,
 246         .init                   = bcmfb_init,
 247         .get_info               = bcmfb_get_info,
 248         .query_mode             = bcmfb_query_mode,
 249         .set_mode               = bcmfb_set_mode,
 250         .save_font              = bcmfb_save_font,
 251         .load_font              = bcmfb_load_font,
 252         .show_font              = bcmfb_show_font,
 253         .save_palette           = bcmfb_save_palette,
 254         .load_palette           = bcmfb_load_palette,
 255         .set_border             = bcmfb_set_border,
 256         .save_state             = bcmfb_save_state,
 257         .load_state             = bcmfb_load_state,
 258         .set_win_org            = bcmfb_set_win_org,
 259         .read_hw_cursor         = bcmfb_read_hw_cursor,
 260         .set_hw_cursor          = bcmfb_set_hw_cursor,
 261         .set_hw_cursor_shape    = bcmfb_set_hw_cursor_shape,
 262         .blank_display          = bcmfb_blank_display,
 263         .mmap                   = bcmfb_mmap,
 264         .ioctl                  = bcmfb_ioctl,
 265         .clear                  = bcmfb_clear,
 266         .fill_rect              = bcmfb_fill_rect,
 267         .bitblt                 = bcmfb_bitblt,
 268         .diag                   = bcmfb_diag,
 269         .save_cursor_palette    = bcmfb_save_cursor_palette,
 270         .load_cursor_palette    = bcmfb_load_cursor_palette,
 271         .copy                   = bcmfb_copy,
 272         .putp                   = bcmfb_putp,
 273         .putc                   = bcmfb_putc,
 274         .puts                   = bcmfb_puts,
 275         .putm                   = bcmfb_putm,
 276 };
 277
 278 VIDEO_DRIVER(bcmfb, bcmfbvidsw, bcmfb_configure);
 279
 280 static vr_init_t bcmrend_init;
 281 static vr_clear_t bcmrend_clear;
 282 static vr_draw_border_t bcmrend_draw_border;
 283 static vr_draw_t bcmrend_draw;
 284 static vr_set_cursor_t bcmrend_set_cursor;
 285 static vr_draw_cursor_t bcmrend_draw_cursor;
 286 static vr_blink_cursor_t bcmrend_blink_cursor;
 287 static vr_set_mouse_t bcmrend_set_mouse;
 288 static vr_draw_mouse_t bcmrend_draw_mouse;
 289
 290 /*
 291  * We use our own renderer; this is because we must emulate a hardware
 292  * cursor.
 293  */
 294 static sc_rndr_sw_t bcmrend = {
 295         bcmrend_init,
 296         bcmrend_clear,
 297         bcmrend_draw_border,
 298         bcmrend_draw,
 299         bcmrend_set_cursor,
 300         bcmrend_draw_cursor,
 301         bcmrend_blink_cursor,
 302         bcmrend_set_mouse,
 303         bcmrend_draw_mouse
 304 };
 305
 306 RENDERER(bcmfb, 0, bcmrend, gfb_set);
 307 RENDERER_MODULE(bcmfb, gfb_set);
 308
 309 static void
 310 bcmrend_init(scr_stat* scp)
 311 {
 312 }
 313
 314 static void
 315 bcmrend_clear(scr_stat* scp, int c, int attr)
 316 {
 317 }
 318
 319 static void
 320 bcmrend_draw_border(scr_stat* scp, int color)
 321 {
 322 }
 323
 324 static void
 325 bcmrend_draw(scr_stat* scp, int from, int count, int flip)
 326 {
 327         video_adapter_t* adp = scp->sc->adp;
 328         int i, c, a;
 329
 330         if (!flip) {
 331                 /* Normal printing */
 332                 vidd_puts(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
 333         } else {
 334                 /* This is for selections and such: invert the color attribute */
 335                 for (i = count; i-- > 0; ++from) {
 336                         c = sc_vtb_getc(&scp->vtb, from);
 337                         a = sc_vtb_geta(&scp->vtb, from) >> 8;
 338                         vidd_putc(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
 339                 }
 340         }
 341 }
 342
 343 static void
 344 bcmrend_set_cursor(scr_stat* scp, int base, int height, int blink)
 345 {
 346 }
 347
 348 static void
 349 bcmrend_draw_cursor(scr_stat* scp, int off, int blink, int on, int flip)
 350 {
 351         int bytes, col, i, j, row;
 352         struct bcmsc_softc *sc;
 353         uint8_t *addr;
 354         video_adapter_t *adp;
 355
 356         adp = scp->sc->adp;
 357         sc = (struct bcmsc_softc *)adp;
 358
 359         if (scp->curs_attr.height <= 0)
 360                 return;
 361
 362         if (sc->fb_addr == 0)
 363                 return;
 364
 365         if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
 366                 return;
 367
 368         /* calculate the coordinates in the video buffer */
 369         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
 370         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
 371
 372         addr = (uint8_t *)sc->fb_addr
 373             + (row + sc->ymargin)*(sc->stride)
 374             + (sc->depth/8) * (col + sc->xmargin);
 375
 376         bytes = sc->depth / 8;
 377         /* our cursor consists of simply inverting the char under it */
 378         for (i = 0; i < adp->va_info.vi_cheight; i++) {
 379                 for (j = 0; j < adp->va_info.vi_cwidth; j++) {
 380                         switch (sc->depth) {
 381                         case 32:
 382                         case 24:
 383                                 addr[bytes*j + 2] ^= 0xff;
 384                                 /* FALLTHROUGH */
 385                         case 16:
 386                                 addr[bytes*j + 1] ^= 0xff;
 387                                 addr[bytes*j] ^= 0xff;
 388                                 break;
 389                         default:
 390                                 break;
 391                         }
 392                 }
 393
 394                 addr += sc->stride;
 395         }
 396 }
 397
 398 static void
 399 bcmrend_blink_cursor(scr_stat* scp, int at, int flip)
 400 {
 401 }
 402
 403 static void
 404 bcmrend_set_mouse(scr_stat* scp)
 405 {
 406 }
 407
 408 static void
 409 bcmrend_draw_mouse(scr_stat* scp, int x, int y, int on)
 410 {
 411         vidd_putm(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
 412 }
 413
 414 static uint16_t bcmfb_static_window[ROW*COL];
 415 extern u_char dflt_font_16[];
 416
 417 /*
 418  * Update videoadapter settings after changing resolution
 419  */
 420 static void
 421 bcmfb_update_margins(video_adapter_t *adp)
 422 {
 423         struct bcmsc_softc *sc;
 424         video_info_t *vi;
 425
 426         sc = (struct bcmsc_softc *)adp;
 427         vi = &adp->va_info;
 428
 429         sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
 430         sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight)) / 2;
 431 }
 432
 433 static int
 434 bcmfb_configure(int flags)
 435 {
 436         char bootargs[2048], *n, *p, *v;
 437         pcell_t cell;
 438         phandle_t chosen, display, root;
 439         struct bcmsc_softc *sc;
 440
 441         sc = &bcmsc;
 442         if (sc->initialized)
 443                 return (0);
 444
 445         sc->width = 0;
 446         sc->height = 0;
 447
 448         /*
 449          * It seems there is no way to let syscons framework know
 450          * that framebuffer resolution has changed. So just try
 451          * to fetch data from FDT bootargs, FDT display data and
 452          * finally go with defaults if everything else has failed.
 453          */
 454         chosen = OF_finddevice("/chosen");
 455         if (chosen != -1 &&
 456             OF_getprop(chosen, "bootargs", &bootargs, sizeof(bootargs)) > 0) {
 457                 p = bootargs;
 458                 while ((v = strsep(&p, " ")) != NULL) {
 459                         if (*v == '\0')
 460                                 continue;
 461                         n = strsep(&v, "=");
 462                         if (strcmp(n, "bcm2708_fb.fbwidth") == 0 && v != NULL)
 463                                 sc->width = (unsigned int)strtol(v, NULL, 0);
 464                         else if (strcmp(n, "bcm2708_fb.fbheight") == 0 &&
 465                             v != NULL)
 466                                 sc->height = (unsigned int)strtol(v, NULL, 0);
 467                         else if (strcmp(n, "bcm2708_fb.fbswap") == 0 &&
 468                             v != NULL)
 469                                 if (*v == '1')
 470                                         sc->fbswap = 1;
 471                 }
 472         }
 473
 474         root = OF_finddevice("/");
 475         if ((root != -1) &&
 476             (display = fdt_find_compatible(root, "broadcom,bcm2835-fb", 1))) {
 477                 if (sc->width == 0) {
 478                         if ((OF_getencprop(display, "broadcom,width",
 479                             &cell, sizeof(cell))) > 0)
 480                                 sc->width = cell;
 481                 }
 482
 483                 if (sc->height == 0) {
 484                         if ((OF_getencprop(display, "broadcom,height",
 485                             &cell, sizeof(cell))) > 0)
 486                                 sc->height = cell;
 487                 }
 488         }
 489
 490         if (sc->width == 0)
 491                 sc->width = FB_WIDTH;
 492         if (sc->height == 0)
 493                 sc->height = FB_HEIGHT;
 494
 495         bcmfb_init(0, &sc->va, 0);
 496         sc->initialized = 1;
 497
 498         return (0);
 499 }
 500
 501 static int
 502 bcmfb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
 503 {
 504
 505         return (0);
 506 }
 507
 508 static int
 509 bcmfb_init(int unit, video_adapter_t *adp, int flags)
 510 {
 511         struct bcmsc_softc *sc;
 512         video_info_t *vi;
 513
 514         sc = (struct bcmsc_softc *)adp;
 515         vi = &adp->va_info;
 516
 517         vid_init_struct(adp, "bcmfb", -1, unit);
 518
 519         sc->font = dflt_font_16;
 520         vi->vi_cheight = BCMFB_FONT_HEIGHT;
 521         vi->vi_cwidth = BCMFB_FONT_WIDTH;
 522         vi->vi_width = sc->width / vi->vi_cwidth;
 523         vi->vi_height = sc->height / vi->vi_cheight;
 524
 525         /*
 526          * Clamp width/height to syscons maximums
 527          */
 528         if (vi->vi_width > COL)
 529                 vi->vi_width = COL;
 530         if (vi->vi_height > ROW)
 531                 vi->vi_height = ROW;
 532
 533         sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
 534         sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight)) / 2;
 535
 536         adp->va_window = (vm_offset_t) bcmfb_static_window;
 537         adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
 538
 539         vid_register(&sc->va);
 540
 541         return (0);
 542 }
 543
 544 static int
 545 bcmfb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
 546 {
 547         bcopy(&adp->va_info, info, sizeof(*info));
 548         return (0);
 549 }
 550
 551 static int
 552 bcmfb_query_mode(video_adapter_t *adp, video_info_t *info)
 553 {
 554         return (0);
 555 }
 556
 557 static int
 558 bcmfb_set_mode(video_adapter_t *adp, int mode)
 559 {
 560         return (0);
 561 }
 562
 563 static int
 564 bcmfb_save_font(video_adapter_t *adp, int page, int size, int width,
 565     u_char *data, int c, int count)
 566 {
 567         return (0);
 568 }
 569
 570 static int
 571 bcmfb_load_font(video_adapter_t *adp, int page, int size, int width,
 572     u_char *data, int c, int count)
 573 {
 574         struct bcmsc_softc *sc;
 575
 576         sc = (struct bcmsc_softc *)adp;
 577         sc->font = data;
 578
 579         return (0);
 580 }
 581
 582 static int
 583 bcmfb_show_font(video_adapter_t *adp, int page)
 584 {
 585         return (0);
 586 }
 587
 588 static int
 589 bcmfb_save_palette(video_adapter_t *adp, u_char *palette)
 590 {
 591         return (0);
 592 }
 593
 594 static int
 595 bcmfb_load_palette(video_adapter_t *adp, u_char *palette)
 596 {
 597         return (0);
 598 }
 599
 600 static int
 601 bcmfb_set_border(video_adapter_t *adp, int border)
 602 {
 603         return (bcmfb_blank_display(adp, border));
 604 }
 605
 606 static int
 607 bcmfb_save_state(video_adapter_t *adp, void *p, size_t size)
 608 {
 609         return (0);
 610 }
 611
 612 static int
 613 bcmfb_load_state(video_adapter_t *adp, void *p)
 614 {
 615         return (0);
 616 }
 617
 618 static int
 619 bcmfb_set_win_org(video_adapter_t *adp, off_t offset)
 620 {
 621         return (0);
 622 }
 623
 624 static int
 625 bcmfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
 626 {
 627         *col = *row = 0;
 628
 629         return (0);
 630 }
 631
 632 static int
 633 bcmfb_set_hw_cursor(video_adapter_t *adp, int col, int row)
 634 {
 635         return (0);
 636 }
 637
 638 static int
 639 bcmfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
 640     int celsize, int blink)
 641 {
 642         return (0);
 643 }
 644
 645 static int
 646 bcmfb_blank_display(video_adapter_t *adp, int mode)
 647 {
 648
 649         struct bcmsc_softc *sc;
 650
 651         sc = (struct bcmsc_softc *)adp;
 652         if (sc && sc->fb_addr)
 653                 memset((void*)sc->fb_addr, 0, sc->fb_size);
 654
 655         return (0);
 656 }
 657
 658 static int
 659 bcmfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
 660     int prot, vm_memattr_t *memattr)
 661 {
 662         struct bcmsc_softc *sc;
 663
 664         sc = (struct bcmsc_softc *)adp;
 665
 666         /*
 667          * This might be a legacy VGA mem request: if so, just point it at the
 668          * framebuffer, since it shouldn't be touched
 669          */
 670         if (offset < sc->stride*sc->height) {
 671                 *paddr = sc->fb_paddr + offset;
 672                 return (0);
 673         }
 674
 675         return (EINVAL);
 676 }
 677
 678 static int
 679 bcmfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
 680 {
 681         struct bcmsc_softc *sc;
 682         struct fbtype *fb;
 683
 684         sc = (struct bcmsc_softc *)adp;
 685
 686         switch (cmd) {
 687         case FBIOGTYPE:
 688                 fb = (struct fbtype *)data;
 689                 fb->fb_type = FBTYPE_PCIMISC;
 690                 fb->fb_height = sc->height;
 691                 fb->fb_width = sc->width;
 692                 fb->fb_depth = sc->depth;
 693                 if (sc->depth <= 1 || sc->depth > 8)
 694                         fb->fb_cmsize = 0;
 695                 else
 696                         fb->fb_cmsize = 1 << sc->depth;
 697                 fb->fb_size = sc->fb_size;
 698                 break;
 699         default:
 700                 return (fb_commonioctl(adp, cmd, data));
 701         }
 702
 703         return (0);
 704 }
 705
 706 static int
 707 bcmfb_clear(video_adapter_t *adp)
 708 {
 709
 710         return (bcmfb_blank_display(adp, 0));
 711 }
 712
 713 static int
 714 bcmfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
 715 {
 716
 717         return (0);
 718 }
 719
 720 static int
 721 bcmfb_bitblt(video_adapter_t *adp, ...)
 722 {
 723
 724         return (0);
 725 }
 726
 727 static int
 728 bcmfb_diag(video_adapter_t *adp, int level)
 729 {
 730
 731         return (0);
 732 }
 733
 734 static int
 735 bcmfb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
 736 {
 737
 738         return (0);
 739 }
 740
 741 static int
 742 bcmfb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
 743 {
 744
 745         return (0);
 746 }
 747
 748 static int
 749 bcmfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
 750 {
 751
 752         return (0);
 753 }
 754
 755 static int
 756 bcmfb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
 757     int size, int bpp, int bit_ltor, int byte_ltor)
 758 {
 759
 760         return (0);
 761 }
 762
 763 static int
 764 bcmfb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
 765 {
 766         int bytes, col, i, j, k, row;
 767         struct bcmsc_softc *sc;
 768         u_char *p;
 769         uint8_t *addr, fg, bg, color;
 770         uint16_t rgb;
 771
 772         sc = (struct bcmsc_softc *)adp;
 773
 774         if (sc->fb_addr == 0)
 775                 return (0);
 776
 777         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
 778         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
 779         p = sc->font + c*BCMFB_FONT_HEIGHT;
 780         addr = (uint8_t *)sc->fb_addr
 781             + (row + sc->ymargin)*(sc->stride)
 782             + (sc->depth/8) * (col + sc->xmargin);
 783
 784         fg = a & 0xf ;
 785         bg = (a >> 4) & 0xf;
 786
 787         bytes = sc->depth / 8;
 788         for (i = 0; i < BCMFB_FONT_HEIGHT; i++) {
 789                 for (j = 0, k = 7; j < 8; j++, k--) {
 790                         if ((p[i] & (1 << k)) == 0)
 791                                 color = bg;
 792                         else
 793                                 color = fg;
 794
 795                         switch (sc->depth) {
 796                         case 32:
 797                         case 24:
 798                                 if (sc->fbswap) {
 799                                         addr[bytes * j + 0] =
 800                                             bcmfb_palette[color].b;
 801                                         addr[bytes * j + 1] =
 802                                             bcmfb_palette[color].g;
 803                                         addr[bytes * j + 2] =
 804                                             bcmfb_palette[color].r;
 805                                 } else {
 806                                         addr[bytes * j + 0] =
 807                                             bcmfb_palette[color].r;
 808                                         addr[bytes * j + 1] =
 809                                             bcmfb_palette[color].g;
 810                                         addr[bytes * j + 2] =
 811                                             bcmfb_palette[color].b;
 812                                 }
 813                                 if (sc->depth == 32)
 814                                         addr[bytes * j + 3] =
 815                                             bcmfb_palette[color].a;
 816                                 break;
 817                         case 16:
 818                                 rgb = (bcmfb_palette[color].r >> 3) << 11;
 819                                 rgb |= (bcmfb_palette[color].g >> 2) << 5;
 820                                 rgb |= (bcmfb_palette[color].b >> 3);
 821                                 addr[bytes * j] = rgb & 0xff;
 822                                 addr[bytes * j + 1] = (rgb >> 8) & 0xff;
 823                         default:
 824                                 /* Not supported yet */
 825                                 break;
 826                         }
 827                 }
 828
 829                 addr += (sc->stride);
 830         }
 831
 832         return (0);
 833 }
 834
 835 static int
 836 bcmfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
 837 {
 838         int i;
 839
 840         for (i = 0; i < len; i++)
 841                 bcmfb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
 842
 843         return (0);
 844 }
 845
 846 static int
 847 bcmfb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
 848     uint32_t pixel_mask, int size, int width)
 849 {
 850
 851         return (0);
 852 }
 853
 854 /*
 855  * Define a stub keyboard driver in case one hasn't been
 856  * compiled into the kernel
 857  */
 858 #include <sys/kbio.h>
 859 #include <dev/kbd/kbdreg.h>
 860
 861 static int dummy_kbd_configure(int flags);
 862
 863 keyboard_switch_t bcmdummysw;
 864
 865 static int
 866 dummy_kbd_configure(int flags)
 867 {
 868
 869         return (0);
 870 }
 871 KEYBOARD_DRIVER(bcmdummy, bcmdummysw, dummy_kbd_configure);