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 struct ofw_compat_data compat_data[] = {
 115         {"broadcom,bcm2835-fb",         1},
 116         {"brcm,bcm2708-fb",             1},
 117         {NULL,                          0}
 118 };
 119
 120 static int bcm_fb_probe(device_t);
 121 static int bcm_fb_attach(device_t);
 122 static void bcmfb_update_margins(video_adapter_t *adp);
 123 static int bcmfb_configure(int);
 124
 125 static int
 126 bcm_fb_probe(device_t dev)
 127 {
 128         int error;
 129
 130         if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)
 131                 return (ENXIO);
 132
 133         device_set_desc(dev, "BCM2835 framebuffer device");
 134         error = sc_probe_unit(device_get_unit(dev),
 135             device_get_flags(dev) | SC_AUTODETECT_KBD);
 136         if (error != 0)
 137                 return (error);
 138
 139         return (BUS_PROBE_DEFAULT);
 140 }
 141
 142 static int
 143 bcm_fb_attach(device_t dev)
 144 {
 145         struct bcm2835_fb_config fb;
 146         struct bcmsc_softc *sc;
 147
 148         sc = (struct bcmsc_softc *)vid_get_adapter(vid_find_adapter(
 149             "bcmfb", 0));
 150         if (sc != NULL)
 151                 device_set_softc(dev, sc);
 152         else
 153                 sc = device_get_softc(dev);
 154
 155         memset(&fb, 0, sizeof(fb));
 156         if (bcm2835_mbox_fb_get_w_h(&fb) != 0)
 157                 return (ENXIO);
 158         fb.bpp = FB_DEPTH;
 159         fb.vxres = fb.xres;
 160         fb.vyres = fb.yres;
 161         fb.xoffset = fb.yoffset = 0;
 162         if (bcm2835_mbox_fb_init(&fb) != 0)
 163                 return (ENXIO);
 164
 165         sc->fb_addr = (intptr_t)pmap_mapdev(fb.base, fb.size);
 166         sc->fb_paddr = fb.base;
 167         sc->fb_size = fb.size;
 168         sc->depth = fb.bpp;
 169         sc->stride = fb.pitch;
 170         sc->width = fb.xres;
 171         sc->height = fb.yres;
 172         bcmfb_update_margins(&sc->va);
 173
 174         if (sc_attach_unit(device_get_unit(dev),
 175             device_get_flags(dev) | SC_AUTODETECT_KBD) != 0) {
 176                 device_printf(dev, "failed to attach syscons\n");
 177                 return (ENXIO);
 178         }
 179
 180         device_printf(dev, "%dx%d(%dx%d@%d,%d) %dbpp\n", fb.xres, fb.yres,
 181             fb.vxres, fb.vyres, fb.xoffset, fb.yoffset, fb.bpp);
 182         device_printf(dev,
 183             "fbswap: %d, pitch %d, base 0x%08x, screen_size %d\n",
 184             sc->fbswap, fb.pitch, fb.base, fb.size);
 185
 186         return (0);
 187 }
 188
 189 static device_method_t bcm_fb_methods[] = {
 190         /* Device interface */
 191         DEVMETHOD(device_probe,         bcm_fb_probe),
 192         DEVMETHOD(device_attach,        bcm_fb_attach),
 193
 194         { 0, 0 }
 195 };
 196
 197 static devclass_t bcm_fb_devclass;
 198
 199 static driver_t bcm_fb_driver = {
 200         "fb",
 201         bcm_fb_methods,
 202         sizeof(struct bcmsc_softc),
 203 };
 204
 205 DRIVER_MODULE(bcm2835fb, ofwbus, bcm_fb_driver, bcm_fb_devclass, 0, 0);
 206 DRIVER_MODULE(bcm2835fb, simplebus, bcm_fb_driver, bcm_fb_devclass, 0, 0);
 207
 208 /*
 209  * Video driver routines and glue.
 210  */
 211 static vi_probe_t               bcmfb_probe;
 212 static vi_init_t                bcmfb_init;
 213 static vi_get_info_t            bcmfb_get_info;
 214 static vi_query_mode_t          bcmfb_query_mode;
 215 static vi_set_mode_t            bcmfb_set_mode;
 216 static vi_save_font_t           bcmfb_save_font;
 217 static vi_load_font_t           bcmfb_load_font;
 218 static vi_show_font_t           bcmfb_show_font;
 219 static vi_save_palette_t        bcmfb_save_palette;
 220 static vi_load_palette_t        bcmfb_load_palette;
 221 static vi_set_border_t          bcmfb_set_border;
 222 static vi_save_state_t          bcmfb_save_state;
 223 static vi_load_state_t          bcmfb_load_state;
 224 static vi_set_win_org_t         bcmfb_set_win_org;
 225 static vi_read_hw_cursor_t      bcmfb_read_hw_cursor;
 226 static vi_set_hw_cursor_t       bcmfb_set_hw_cursor;
 227 static vi_set_hw_cursor_shape_t bcmfb_set_hw_cursor_shape;
 228 static vi_blank_display_t       bcmfb_blank_display;
 229 static vi_mmap_t                bcmfb_mmap;
 230 static vi_ioctl_t               bcmfb_ioctl;
 231 static vi_clear_t               bcmfb_clear;
 232 static vi_fill_rect_t           bcmfb_fill_rect;
 233 static vi_bitblt_t              bcmfb_bitblt;
 234 static vi_diag_t                bcmfb_diag;
 235 static vi_save_cursor_palette_t bcmfb_save_cursor_palette;
 236 static vi_load_cursor_palette_t bcmfb_load_cursor_palette;
 237 static vi_copy_t                bcmfb_copy;
 238 static vi_putp_t                bcmfb_putp;
 239 static vi_putc_t                bcmfb_putc;
 240 static vi_puts_t                bcmfb_puts;
 241 static vi_putm_t                bcmfb_putm;
 242
 243 static video_switch_t bcmfbvidsw = {
 244         .probe                  = bcmfb_probe,
 245         .init                   = bcmfb_init,
 246         .get_info               = bcmfb_get_info,
 247         .query_mode             = bcmfb_query_mode,
 248         .set_mode               = bcmfb_set_mode,
 249         .save_font              = bcmfb_save_font,
 250         .load_font              = bcmfb_load_font,
 251         .show_font              = bcmfb_show_font,
 252         .save_palette           = bcmfb_save_palette,
 253         .load_palette           = bcmfb_load_palette,
 254         .set_border             = bcmfb_set_border,
 255         .save_state             = bcmfb_save_state,
 256         .load_state             = bcmfb_load_state,
 257         .set_win_org            = bcmfb_set_win_org,
 258         .read_hw_cursor         = bcmfb_read_hw_cursor,
 259         .set_hw_cursor          = bcmfb_set_hw_cursor,
 260         .set_hw_cursor_shape    = bcmfb_set_hw_cursor_shape,
 261         .blank_display          = bcmfb_blank_display,
 262         .mmap                   = bcmfb_mmap,
 263         .ioctl                  = bcmfb_ioctl,
 264         .clear                  = bcmfb_clear,
 265         .fill_rect              = bcmfb_fill_rect,
 266         .bitblt                 = bcmfb_bitblt,
 267         .diag                   = bcmfb_diag,
 268         .save_cursor_palette    = bcmfb_save_cursor_palette,
 269         .load_cursor_palette    = bcmfb_load_cursor_palette,
 270         .copy                   = bcmfb_copy,
 271         .putp                   = bcmfb_putp,
 272         .putc                   = bcmfb_putc,
 273         .puts                   = bcmfb_puts,
 274         .putm                   = bcmfb_putm,
 275 };
 276
 277 VIDEO_DRIVER(bcmfb, bcmfbvidsw, bcmfb_configure);
 278
 279 static vr_init_t bcmrend_init;
 280 static vr_clear_t bcmrend_clear;
 281 static vr_draw_border_t bcmrend_draw_border;
 282 static vr_draw_t bcmrend_draw;
 283 static vr_set_cursor_t bcmrend_set_cursor;
 284 static vr_draw_cursor_t bcmrend_draw_cursor;
 285 static vr_blink_cursor_t bcmrend_blink_cursor;
 286 static vr_set_mouse_t bcmrend_set_mouse;
 287 static vr_draw_mouse_t bcmrend_draw_mouse;
 288
 289 /*
 290  * We use our own renderer; this is because we must emulate a hardware
 291  * cursor.
 292  */
 293 static sc_rndr_sw_t bcmrend = {
 294         bcmrend_init,
 295         bcmrend_clear,
 296         bcmrend_draw_border,
 297         bcmrend_draw,
 298         bcmrend_set_cursor,
 299         bcmrend_draw_cursor,
 300         bcmrend_blink_cursor,
 301         bcmrend_set_mouse,
 302         bcmrend_draw_mouse
 303 };
 304
 305 RENDERER(bcmfb, 0, bcmrend, gfb_set);
 306 RENDERER_MODULE(bcmfb, gfb_set);
 307
 308 static void
 309 bcmrend_init(scr_stat* scp)
 310 {
 311 }
 312
 313 static void
 314 bcmrend_clear(scr_stat* scp, int c, int attr)
 315 {
 316 }
 317
 318 static void
 319 bcmrend_draw_border(scr_stat* scp, int color)
 320 {
 321 }
 322
 323 static void
 324 bcmrend_draw(scr_stat* scp, int from, int count, int flip)
 325 {
 326         video_adapter_t* adp = scp->sc->adp;
 327         int i, c, a;
 328
 329         if (!flip) {
 330                 /* Normal printing */
 331                 vidd_puts(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
 332         } else {
 333                 /* This is for selections and such: invert the color attribute */
 334                 for (i = count; i-- > 0; ++from) {
 335                         c = sc_vtb_getc(&scp->vtb, from);
 336                         a = sc_vtb_geta(&scp->vtb, from) >> 8;
 337                         vidd_putc(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
 338                 }
 339         }
 340 }
 341
 342 static void
 343 bcmrend_set_cursor(scr_stat* scp, int base, int height, int blink)
 344 {
 345 }
 346
 347 static void
 348 bcmrend_draw_cursor(scr_stat* scp, int off, int blink, int on, int flip)
 349 {
 350         int bytes, col, i, j, row;
 351         struct bcmsc_softc *sc;
 352         uint8_t *addr;
 353         video_adapter_t *adp;
 354
 355         adp = scp->sc->adp;
 356         sc = (struct bcmsc_softc *)adp;
 357
 358         if (scp->curs_attr.height <= 0)
 359                 return;
 360
 361         if (sc->fb_addr == 0)
 362                 return;
 363
 364         if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
 365                 return;
 366
 367         /* calculate the coordinates in the video buffer */
 368         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
 369         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
 370
 371         addr = (uint8_t *)sc->fb_addr
 372             + (row + sc->ymargin)*(sc->stride)
 373             + (sc->depth/8) * (col + sc->xmargin);
 374
 375         bytes = sc->depth / 8;
 376         /* our cursor consists of simply inverting the char under it */
 377         for (i = 0; i < adp->va_info.vi_cheight; i++) {
 378                 for (j = 0; j < adp->va_info.vi_cwidth; j++) {
 379                         switch (sc->depth) {
 380                         case 32:
 381                         case 24:
 382                                 addr[bytes*j + 2] ^= 0xff;
 383                                 /* FALLTHROUGH */
 384                         case 16:
 385                                 addr[bytes*j + 1] ^= 0xff;
 386                                 addr[bytes*j] ^= 0xff;
 387                                 break;
 388                         default:
 389                                 break;
 390                         }
 391                 }
 392
 393                 addr += sc->stride;
 394         }
 395 }
 396
 397 static void
 398 bcmrend_blink_cursor(scr_stat* scp, int at, int flip)
 399 {
 400 }
 401
 402 static void
 403 bcmrend_set_mouse(scr_stat* scp)
 404 {
 405 }
 406
 407 static void
 408 bcmrend_draw_mouse(scr_stat* scp, int x, int y, int on)
 409 {
 410         vidd_putm(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
 411 }
 412
 413 static uint16_t bcmfb_static_window[ROW*COL];
 414 extern u_char dflt_font_16[];
 415
 416 /*
 417  * Update videoadapter settings after changing resolution
 418  */
 419 static void
 420 bcmfb_update_margins(video_adapter_t *adp)
 421 {
 422         struct bcmsc_softc *sc;
 423         video_info_t *vi;
 424
 425         sc = (struct bcmsc_softc *)adp;
 426         vi = &adp->va_info;
 427
 428         sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
 429         sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight)) / 2;
 430 }
 431
 432 static int
 433 bcmfb_configure(int flags)
 434 {
 435         char bootargs[2048], *n, *p, *v;
 436         pcell_t cell;
 437         phandle_t chosen, display, root;
 438         struct bcmsc_softc *sc;
 439
 440         sc = &bcmsc;
 441         if (sc->initialized)
 442                 return (0);
 443
 444         sc->width = 0;
 445         sc->height = 0;
 446
 447         /*
 448          * It seems there is no way to let syscons framework know
 449          * that framebuffer resolution has changed. So just try
 450          * to fetch data from FDT bootargs, FDT display data and
 451          * finally go with defaults if everything else has failed.
 452          */
 453         chosen = OF_finddevice("/chosen");
 454         if (chosen != 0 &&
 455             OF_getprop(chosen, "bootargs", &bootargs, sizeof(bootargs)) > 0) {
 456                 p = bootargs;
 457                 while ((v = strsep(&p, " ")) != NULL) {
 458                         if (*v == '\0')
 459                                 continue;
 460                         n = strsep(&v, "=");
 461                         if (strcmp(n, "bcm2708_fb.fbwidth") == 0 && v != NULL)
 462                                 sc->width = (unsigned int)strtol(v, NULL, 0);
 463                         else if (strcmp(n, "bcm2708_fb.fbheight") == 0 &&
 464                             v != NULL)
 465                                 sc->height = (unsigned int)strtol(v, NULL, 0);
 466                         else if (strcmp(n, "bcm2708_fb.fbswap") == 0 &&
 467                             v != NULL)
 468                                 if (*v == '1')
 469                                         sc->fbswap = 1;
 470                 }
 471         }
 472
 473         root = OF_finddevice("/");
 474         if ((root != 0) &&
 475             (display = fdt_find_compatible(root, "broadcom,bcm2835-fb", 1))) {
 476                 if (sc->width == 0) {
 477                         if ((OF_getprop(display, "broadcom,width",
 478                             &cell, sizeof(cell))) > 0)
 479                                 sc->width = (int)fdt32_to_cpu(cell);
 480                 }
 481
 482                 if (sc->height == 0) {
 483                         if ((OF_getprop(display, "broadcom,height",
 484                             &cell, sizeof(cell))) > 0)
 485                                 sc->height = (int)fdt32_to_cpu(cell);
 486                 }
 487         }
 488
 489         if (sc->width == 0)
 490                 sc->width = FB_WIDTH;
 491         if (sc->height == 0)
 492                 sc->height = FB_HEIGHT;
 493
 494         bcmfb_init(0, &sc->va, 0);
 495         sc->initialized = 1;
 496
 497         return (0);
 498 }
 499
 500 static int
 501 bcmfb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
 502 {
 503
 504         return (0);
 505 }
 506
 507 static int
 508 bcmfb_init(int unit, video_adapter_t *adp, int flags)
 509 {
 510         struct bcmsc_softc *sc;
 511         video_info_t *vi;
 512
 513         sc = (struct bcmsc_softc *)adp;
 514         vi = &adp->va_info;
 515
 516         vid_init_struct(adp, "bcmfb", -1, unit);
 517
 518         sc->font = dflt_font_16;
 519         vi->vi_cheight = BCMFB_FONT_HEIGHT;
 520         vi->vi_cwidth = BCMFB_FONT_WIDTH;
 521         vi->vi_width = sc->width / vi->vi_cwidth;
 522         vi->vi_height = sc->height / vi->vi_cheight;
 523
 524         /*
 525          * Clamp width/height to syscons maximums
 526          */
 527         if (vi->vi_width > COL)
 528                 vi->vi_width = COL;
 529         if (vi->vi_height > ROW)
 530                 vi->vi_height = ROW;
 531
 532         sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
 533         sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight)) / 2;
 534
 535         adp->va_window = (vm_offset_t) bcmfb_static_window;
 536         adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
 537
 538         vid_register(&sc->va);
 539
 540         return (0);
 541 }
 542
 543 static int
 544 bcmfb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
 545 {
 546         bcopy(&adp->va_info, info, sizeof(*info));
 547         return (0);
 548 }
 549
 550 static int
 551 bcmfb_query_mode(video_adapter_t *adp, video_info_t *info)
 552 {
 553         return (0);
 554 }
 555
 556 static int
 557 bcmfb_set_mode(video_adapter_t *adp, int mode)
 558 {
 559         return (0);
 560 }
 561
 562 static int
 563 bcmfb_save_font(video_adapter_t *adp, int page, int size, int width,
 564     u_char *data, int c, int count)
 565 {
 566         return (0);
 567 }
 568
 569 static int
 570 bcmfb_load_font(video_adapter_t *adp, int page, int size, int width,
 571     u_char *data, int c, int count)
 572 {
 573         struct bcmsc_softc *sc;
 574
 575         sc = (struct bcmsc_softc *)adp;
 576         sc->font = data;
 577
 578         return (0);
 579 }
 580
 581 static int
 582 bcmfb_show_font(video_adapter_t *adp, int page)
 583 {
 584         return (0);
 585 }
 586
 587 static int
 588 bcmfb_save_palette(video_adapter_t *adp, u_char *palette)
 589 {
 590         return (0);
 591 }
 592
 593 static int
 594 bcmfb_load_palette(video_adapter_t *adp, u_char *palette)
 595 {
 596         return (0);
 597 }
 598
 599 static int
 600 bcmfb_set_border(video_adapter_t *adp, int border)
 601 {
 602         return (bcmfb_blank_display(adp, border));
 603 }
 604
 605 static int
 606 bcmfb_save_state(video_adapter_t *adp, void *p, size_t size)
 607 {
 608         return (0);
 609 }
 610
 611 static int
 612 bcmfb_load_state(video_adapter_t *adp, void *p)
 613 {
 614         return (0);
 615 }
 616
 617 static int
 618 bcmfb_set_win_org(video_adapter_t *adp, off_t offset)
 619 {
 620         return (0);
 621 }
 622
 623 static int
 624 bcmfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
 625 {
 626         *col = *row = 0;
 627
 628         return (0);
 629 }
 630
 631 static int
 632 bcmfb_set_hw_cursor(video_adapter_t *adp, int col, int row)
 633 {
 634         return (0);
 635 }
 636
 637 static int
 638 bcmfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
 639     int celsize, int blink)
 640 {
 641         return (0);
 642 }
 643
 644 static int
 645 bcmfb_blank_display(video_adapter_t *adp, int mode)
 646 {
 647
 648         struct bcmsc_softc *sc;
 649
 650         sc = (struct bcmsc_softc *)adp;
 651         if (sc && sc->fb_addr)
 652                 memset((void*)sc->fb_addr, 0, sc->fb_size);
 653
 654         return (0);
 655 }
 656
 657 static int
 658 bcmfb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
 659     int prot, vm_memattr_t *memattr)
 660 {
 661         struct bcmsc_softc *sc;
 662
 663         sc = (struct bcmsc_softc *)adp;
 664
 665         /*
 666          * This might be a legacy VGA mem request: if so, just point it at the
 667          * framebuffer, since it shouldn't be touched
 668          */
 669         if (offset < sc->stride*sc->height) {
 670                 *paddr = sc->fb_paddr + offset;
 671                 return (0);
 672         }
 673
 674         return (EINVAL);
 675 }
 676
 677 static int
 678 bcmfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
 679 {
 680         struct bcmsc_softc *sc;
 681         struct fbtype *fb;
 682
 683         sc = (struct bcmsc_softc *)adp;
 684
 685         switch (cmd) {
 686         case FBIOGTYPE:
 687                 fb = (struct fbtype *)data;
 688                 fb->fb_type = FBTYPE_PCIMISC;
 689                 fb->fb_height = sc->height;
 690                 fb->fb_width = sc->width;
 691                 fb->fb_depth = sc->depth;
 692                 if (sc->depth <= 1 || sc->depth > 8)
 693                         fb->fb_cmsize = 0;
 694                 else
 695                         fb->fb_cmsize = 1 << sc->depth;
 696                 fb->fb_size = sc->fb_size;
 697                 break;
 698         default:
 699                 return (fb_commonioctl(adp, cmd, data));
 700         }
 701
 702         return (0);
 703 }
 704
 705 static int
 706 bcmfb_clear(video_adapter_t *adp)
 707 {
 708
 709         return (bcmfb_blank_display(adp, 0));
 710 }
 711
 712 static int
 713 bcmfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
 714 {
 715
 716         return (0);
 717 }
 718
 719 static int
 720 bcmfb_bitblt(video_adapter_t *adp, ...)
 721 {
 722
 723         return (0);
 724 }
 725
 726 static int
 727 bcmfb_diag(video_adapter_t *adp, int level)
 728 {
 729
 730         return (0);
 731 }
 732
 733 static int
 734 bcmfb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
 735 {
 736
 737         return (0);
 738 }
 739
 740 static int
 741 bcmfb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
 742 {
 743
 744         return (0);
 745 }
 746
 747 static int
 748 bcmfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
 749 {
 750
 751         return (0);
 752 }
 753
 754 static int
 755 bcmfb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
 756     int size, int bpp, int bit_ltor, int byte_ltor)
 757 {
 758
 759         return (0);
 760 }
 761
 762 static int
 763 bcmfb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
 764 {
 765         int bytes, col, i, j, k, row;
 766         struct bcmsc_softc *sc;
 767         u_char *p;
 768         uint8_t *addr, fg, bg, color;
 769         uint16_t rgb;
 770
 771         sc = (struct bcmsc_softc *)adp;
 772
 773         if (sc->fb_addr == 0)
 774                 return (0);
 775
 776         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
 777         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
 778         p = sc->font + c*BCMFB_FONT_HEIGHT;
 779         addr = (uint8_t *)sc->fb_addr
 780             + (row + sc->ymargin)*(sc->stride)
 781             + (sc->depth/8) * (col + sc->xmargin);
 782
 783         fg = a & 0xf ;
 784         bg = (a >> 4) & 0xf;
 785
 786         bytes = sc->depth / 8;
 787         for (i = 0; i < BCMFB_FONT_HEIGHT; i++) {
 788                 for (j = 0, k = 7; j < 8; j++, k--) {
 789                         if ((p[i] & (1 << k)) == 0)
 790                                 color = bg;
 791                         else
 792                                 color = fg;
 793
 794                         switch (sc->depth) {
 795                         case 32:
 796                         case 24:
 797                                 if (sc->fbswap) {
 798                                         addr[bytes * j + 0] =
 799                                             bcmfb_palette[color].b;
 800                                         addr[bytes * j + 1] =
 801                                             bcmfb_palette[color].g;
 802                                         addr[bytes * j + 2] =
 803                                             bcmfb_palette[color].r;
 804                                 } else {
 805                                         addr[bytes * j + 0] =
 806                                             bcmfb_palette[color].r;
 807                                         addr[bytes * j + 1] =
 808                                             bcmfb_palette[color].g;
 809                                         addr[bytes * j + 2] =
 810                                             bcmfb_palette[color].b;
 811                                 }
 812                                 if (sc->depth == 32)
 813                                         addr[bytes * j + 3] =
 814                                             bcmfb_palette[color].a;
 815                                 break;
 816                         case 16:
 817                                 rgb = (bcmfb_palette[color].r >> 3) << 11;
 818                                 rgb |= (bcmfb_palette[color].g >> 2) << 5;
 819                                 rgb |= (bcmfb_palette[color].b >> 3);
 820                                 addr[bytes * j] = rgb & 0xff;
 821                                 addr[bytes * j + 1] = (rgb >> 8) & 0xff;
 822                         default:
 823                                 /* Not supported yet */
 824                                 break;
 825                         }
 826                 }
 827
 828                 addr += (sc->stride);
 829         }
 830
 831         return (0);
 832 }
 833
 834 static int
 835 bcmfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
 836 {
 837         int i;
 838
 839         for (i = 0; i < len; i++)
 840                 bcmfb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
 841
 842         return (0);
 843 }
 844
 845 static int
 846 bcmfb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
 847     uint32_t pixel_mask, int size, int width)
 848 {
 849
 850         return (0);
 851 }
 852
 853 /*
 854  * Define a stub keyboard driver in case one hasn't been
 855  * compiled into the kernel
 856  */
 857 #include <sys/kbio.h>
 858 #include <dev/kbd/kbdreg.h>
 859
 860 static int dummy_kbd_configure(int flags);
 861
 862 keyboard_switch_t bcmdummysw;
 863
 864 static int
 865 dummy_kbd_configure(int flags)
 866 {
 867
 868         return (0);
 869 }
 870 KEYBOARD_DRIVER(bcmdummy, bcmdummysw, dummy_kbd_configure);