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