The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/i386/xbox/xboxfb.c

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    1 /*-
    2  * Copyright (c) 2005, 2006 Rink Springer <rink@il.fontys.nl>
    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  * 3. The name of the author may not be used to endorse or promote products
   14  *    derived from this software without specific prior written permission
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   26  *
   27  * $FreeBSD$
   28  */
   29 
   30 /*
   31  * This is the syscon(4)-ized version of the Xbox Frame Buffer driver. It
   32  * supports about all features required, such as mouse support.
   33  *
   34  * A lot of functions that are not useful to us have not been implemented.
   35  * It appears that some functions are never called, but these implementations
   36  * are here nevertheless.
   37  */
   38 #include <sys/param.h>
   39 #include <sys/systm.h>
   40 #include <vm/vm_param.h>
   41 #include <sys/kernel.h>
   42 #include <sys/bus.h>
   43 #include <sys/cons.h>
   44 #include <sys/module.h>
   45 #include <sys/conf.h>
   46 #include <sys/consio.h>
   47 #include <sys/limits.h>
   48 #include <sys/tty.h>
   49 #include <sys/kbio.h>
   50 #include <sys/fbio.h>
   51 #include <dev/kbd/kbdreg.h>
   52 #include <vm/vm.h>
   53 #include <vm/pmap.h>
   54 #include <machine/bus.h>
   55 #include <machine/xbox.h>
   56 #include <machine/legacyvar.h>
   57 #include <dev/fb/fbreg.h>
   58 #include <dev/fb/gfb.h>
   59 #include <dev/syscons/syscons.h>
   60 
   61 struct xboxfb_softc {
   62         video_adapter_t sc_va;
   63 
   64         /* screen height (pixels) */
   65         uint32_t sc_height;
   66 
   67         /* screen width (pixels) */
   68         uint32_t sc_width;
   69 
   70         /* pointer to the actual XBOX video memory */
   71         char* sc_framebuffer;
   72 
   73         /* pointer to the font used */
   74         struct gfb_font* sc_font;
   75 };
   76 
   77 #define SCREEN_WIDTH    640
   78 #define SCREEN_HEIGHT   480
   79 
   80 #define XBOXFB_DRIVER_NAME "xboxsc"
   81 
   82 extern struct gfb_font bold8x16;
   83 
   84 static vi_probe_t xboxfb_probe;
   85 static vi_init_t xboxfb_init;
   86 static vi_get_info_t xboxfb_get_info;
   87 static vi_query_mode_t xboxfb_query_mode;
   88 static vi_set_mode_t xboxfb_set_mode;
   89 static vi_save_font_t xboxfb_save_font;
   90 static vi_load_font_t xboxfb_load_font;
   91 static vi_show_font_t xboxfb_show_font;
   92 static vi_save_palette_t xboxfb_save_palette;
   93 static vi_load_palette_t xboxfb_load_palette;
   94 static vi_set_border_t xboxfb_set_border;
   95 static vi_save_state_t xboxfb_save_state;
   96 static vi_load_state_t xboxfb_load_state;
   97 static vi_set_win_org_t xboxfb_set_win_org;
   98 static vi_read_hw_cursor_t xboxfb_read_hw_cursor;
   99 static vi_set_hw_cursor_t xboxfb_set_hw_cursor;
  100 static vi_set_hw_cursor_shape_t xboxfb_set_hw_cursor_shape;
  101 static vi_blank_display_t xboxfb_blank_display;
  102 static vi_mmap_t xboxfb_mmap;
  103 static vi_ioctl_t xboxfb_ioctl;
  104 static vi_clear_t xboxfb_clear;
  105 static vi_fill_rect_t xboxfb_fill_rect;
  106 static vi_bitblt_t xboxfb_bitblt;
  107 static vi_diag_t xboxfb_diag;
  108 static vi_save_cursor_palette_t xboxfb_save_cursor_palette;
  109 static vi_load_cursor_palette_t xboxfb_load_cursor_palette;
  110 static vi_copy_t xboxfb_copy;
  111 static vi_putp_t xboxfb_putp;
  112 static vi_putc_t xboxfb_putc;
  113 static vi_puts_t xboxfb_puts;
  114 static vi_putm_t xboxfb_putm;
  115 
  116 static video_switch_t xboxvidsw = {
  117         .probe                = xboxfb_probe,
  118         .init                 = xboxfb_init,
  119         .get_info             = xboxfb_get_info,
  120         .query_mode           = xboxfb_query_mode,
  121         .set_mode             = xboxfb_set_mode,
  122         .save_font            = xboxfb_save_font,
  123         .load_font            = xboxfb_load_font,
  124         .show_font            = xboxfb_show_font,
  125         .save_palette         = xboxfb_save_palette,
  126         .load_palette         = xboxfb_load_palette,
  127         .set_border           = xboxfb_set_border,
  128         .save_state           = xboxfb_save_state,
  129         .load_state           = xboxfb_load_state,
  130         .set_win_org          = xboxfb_set_win_org,
  131         .read_hw_cursor       = xboxfb_read_hw_cursor,
  132         .set_hw_cursor        = xboxfb_set_hw_cursor,
  133         .set_hw_cursor_shape  = xboxfb_set_hw_cursor_shape,
  134         .blank_display        = xboxfb_blank_display,
  135         .mmap                 = xboxfb_mmap,
  136         .ioctl                = xboxfb_ioctl,
  137         .clear                = xboxfb_clear,
  138         .fill_rect            = xboxfb_fill_rect,
  139         .bitblt               = xboxfb_bitblt,
  140         NULL,
  141         NULL,
  142         .diag                 = xboxfb_diag,
  143         .save_cursor_palette  = xboxfb_save_cursor_palette,
  144         .load_cursor_palette  = xboxfb_load_cursor_palette,
  145         .copy                 = xboxfb_copy,
  146         .putp                 = xboxfb_putp,
  147         .putc                 = xboxfb_putc,
  148         .puts                 = xboxfb_puts,
  149         .putm                 = xboxfb_putm
  150 };
  151 
  152 static int xboxfb_configure(int flags);
  153 VIDEO_DRIVER(xboxsc, xboxvidsw, xboxfb_configure);
  154 
  155 static vr_init_t xbr_init;
  156 static vr_clear_t xbr_clear;
  157 static vr_draw_border_t xbr_draw_border;
  158 static vr_draw_t xbr_draw;
  159 static vr_set_cursor_t xbr_set_cursor;
  160 static vr_draw_cursor_t xbr_draw_cursor;
  161 static vr_blink_cursor_t xbr_blink_cursor;
  162 static vr_set_mouse_t xbr_set_mouse;
  163 static vr_draw_mouse_t xbr_draw_mouse;
  164 
  165 /*
  166  * We use our own renderer; this is because we must emulate a hardware
  167  * cursor.
  168  */
  169 static sc_rndr_sw_t xboxrend = {
  170         xbr_init,
  171         xbr_clear,
  172         xbr_draw_border,
  173         xbr_draw,
  174         xbr_set_cursor,
  175         xbr_draw_cursor,
  176         xbr_blink_cursor,
  177         xbr_set_mouse,
  178         xbr_draw_mouse
  179 };
  180 RENDERER(xboxsc, 0, xboxrend, gfb_set);
  181 
  182 static struct xboxfb_softc xboxfb_sc;
  183 
  184 /* color mappings, from dev/fb/creator.c */
  185 static const uint32_t cmap[] = {
  186         0x00000000,                     /* black */
  187         0x000000ff,                     /* blue */
  188         0x0000ff00,                     /* green */
  189         0x0000c0c0,                     /* cyan */
  190         0x00ff0000,                     /* red */
  191         0x00c000c0,                     /* magenta */
  192         0x00c0c000,                     /* brown */
  193         0x00c0c0c0,                     /* light grey */
  194         0x00808080,                     /* dark grey */
  195         0x008080ff,                     /* light blue */
  196         0x0080ff80,                     /* light green */
  197         0x0080ffff,                     /* light cyan */
  198         0x00ff8080,                     /* light red */
  199         0x00ff80ff,                     /* light magenta */
  200         0x00ffff80,                     /* yellow */
  201         0x00ffffff                      /* white */
  202 };
  203 
  204 /* mouse pointer from dev/syscons/scgfbrndr.c */
  205 static u_char mouse_pointer[16] = {
  206         0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
  207         0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
  208 };
  209 
  210 static int
  211 xboxfb_init(int unit, video_adapter_t* adp, int flags)
  212 {
  213         struct xboxfb_softc* sc = &xboxfb_sc;
  214         video_info_t* vi;
  215         int i;
  216         int* iptr;
  217 
  218         vi = &adp->va_info;
  219 
  220         vid_init_struct (adp, XBOXFB_DRIVER_NAME, -1, unit);
  221         sc->sc_height = SCREEN_HEIGHT;
  222         sc->sc_width = SCREEN_WIDTH;
  223         sc->sc_font = &bold8x16;
  224         if (!(adp->va_flags & V_ADP_INITIALIZED)) {
  225                 /*
  226                  * We must make a mapping from video framebuffer memory
  227                  * to real. This is very crude:  we map the entire
  228                  * videomemory to PAGE_SIZE! Since our kernel lives at
  229                  * it's relocated address range (0xc0xxxxxx), it won't
  230                  * care.
  231                  *
  232                  * We use address PAGE_SIZE and up so we can still trap
  233                  * NULL pointers.  Once the real init is called, the
  234                  * mapping will be done via the OS and stored in a more
  235                  * sensible location ... but since we're not fully
  236                  * initialized, this is our only way to go :-(
  237                  */
  238                 for (i = 0; i < (XBOX_FB_SIZE / PAGE_SIZE); i++) {
  239                         pmap_kenter (((i + 1) * PAGE_SIZE), XBOX_FB_START + (i * PAGE_SIZE));
  240                 }
  241                 pmap_kenter ((i + 1) * PAGE_SIZE, XBOX_FB_START_PTR - XBOX_FB_START_PTR % PAGE_SIZE);
  242                 sc->sc_framebuffer = (char*)PAGE_SIZE;
  243 
  244                 /* ensure the framebuffer is where we want it to be */
  245                 *(uint32_t*)((i + 1) * PAGE_SIZE + XBOX_FB_START_PTR % PAGE_SIZE) = XBOX_FB_START;
  246 
  247                 /* clear the screen */
  248                 iptr = (uint32_t*)sc->sc_framebuffer;
  249                 for (i = 0; i < sc->sc_height * sc->sc_width; i++)
  250                         *iptr++ = cmap[0];
  251 
  252                 /* don't ever do this again! */
  253                 adp->va_flags |= V_ADP_INITIALIZED;
  254         }
  255 
  256         vi->vi_mode = M_TEXT_80x25;
  257         vi->vi_cwidth = sc->sc_font->width;
  258         vi->vi_cheight = sc->sc_font->height;
  259         vi->vi_height = (sc->sc_height / vi->vi_cheight);
  260         vi->vi_width = (sc->sc_width / vi->vi_cwidth);
  261         vi->vi_flags = V_INFO_COLOR | V_INFO_LINEAR;
  262         vi->vi_mem_model = V_INFO_MM_DIRECT;
  263 
  264         adp->va_flags |= V_ADP_COLOR;
  265 
  266         if (vid_register(adp) < 0)
  267                 return (ENXIO);
  268 
  269         adp->va_flags |= V_ADP_REGISTERED;
  270 
  271         return 0;
  272 }
  273 
  274 static int
  275 xboxfb_probe(int unit, video_adapter_t** adp, void* arg, int flags)
  276 {
  277         return 0;
  278 }
  279 
  280 static int
  281 xboxfb_configure(int flags)
  282 {
  283         struct xboxfb_softc* sc = &xboxfb_sc;
  284 
  285         /* Don't init the framebuffer on non-XBOX-es */
  286         if (!arch_i386_is_xbox)
  287                 return 0;
  288 
  289         /*
  290          * If we do only a probe, we are in such an early boot stadium
  291          * that we cannot yet do a 'clean' initialization.
  292          */
  293         if (flags & VIO_PROBE_ONLY) {
  294                 xboxfb_init(0, &sc->sc_va, 0);
  295                 return 1;
  296         }
  297 
  298         /* Do a clean mapping of the framebuffer memory */
  299         sc->sc_framebuffer = pmap_mapdev (XBOX_FB_START, XBOX_FB_SIZE);
  300         return 1;
  301 }
  302 
  303 static void
  304 sc_identify(driver_t* driver, device_t parent)
  305 {
  306         BUS_ADD_CHILD(parent, INT_MAX, SC_DRIVER_NAME, 0);
  307 }
  308 
  309 static int
  310 sc_probe(device_t dev)
  311 {
  312         device_set_desc(dev, "XBox System console");
  313         return (sc_probe_unit(device_get_unit(dev), device_get_flags(dev) | SC_AUTODETECT_KBD));
  314 }
  315 
  316 static int sc_attach(device_t dev)
  317 {
  318         return (sc_attach_unit(device_get_unit(dev), device_get_flags(dev) | SC_AUTODETECT_KBD));
  319 }
  320 
  321 static device_method_t sc_methods[] = {
  322         /* Device interface */
  323         DEVMETHOD(device_identify,      sc_identify),
  324         DEVMETHOD(device_probe,         sc_probe),
  325         DEVMETHOD(device_attach,        sc_attach),
  326         { 0, 0 }
  327 };
  328 
  329 static driver_t xboxfb_sc_driver = {
  330         SC_DRIVER_NAME,
  331         sc_methods,
  332         sizeof(sc_softc_t)
  333 };
  334 
  335 static devclass_t sc_devclass;
  336 
  337 DRIVER_MODULE(sc, legacy, xboxfb_sc_driver, sc_devclass, 0, 0);
  338 
  339 static void
  340 xbr_init(scr_stat* scp)
  341 {
  342 }
  343 
  344 static void
  345 xbr_clear(scr_stat* scp, int c, int attr)
  346 {
  347 }
  348 
  349 static void
  350 xbr_draw_border(scr_stat* scp, int color)
  351 {
  352 }
  353 
  354 static void
  355 xbr_draw(scr_stat* scp, int from, int count, int flip)
  356 {
  357         video_adapter_t* adp = scp->sc->adp;
  358         int i, c, a;
  359 
  360         if (!flip) {
  361                 /* Normal printing */
  362                 (*vidsw[scp->sc->adapter]->puts)(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
  363         } else {        
  364                 /* This is for selections and such: invert the color attribute */
  365                 for (i = count; i-- > 0; ++from) {
  366                         c = sc_vtb_getc(&scp->vtb, from);
  367                         a = sc_vtb_geta(&scp->vtb, from) >> 8;
  368                         (*vidsw[scp->sc->adapter]->putc)(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
  369                 }
  370         }
  371 }
  372 
  373 static void
  374 xbr_set_cursor(scr_stat* scp, int base, int height, int blink)
  375 {
  376 }
  377 
  378 static void
  379 xbr_draw_cursor(scr_stat* scp, int at, int blink, int on, int flip)
  380 {
  381         struct xboxfb_softc* sc = &xboxfb_sc;
  382         video_adapter_t* adp = scp->sc->adp;
  383         uint32_t* ptri = (uint32_t*)sc->sc_framebuffer;
  384         int row, col, i, j;
  385 
  386         if (scp->curs_attr.height <= 0)
  387                 return;
  388 
  389         /* calculate the coordinates in the video buffer */
  390         row = (at / adp->va_info.vi_width) * adp->va_info.vi_cheight;
  391         col = (at % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
  392         ptri += (row * sc->sc_width) + col;
  393 
  394         /* our cursor consists of simply inverting the char under it */
  395         for (i = 0; i < adp->va_info.vi_cheight; i++) {
  396                 for (j = 0; j < adp->va_info.vi_cwidth; j++) {
  397                         *ptri++ ^= 0x00FFFFFF;
  398                 }
  399                 ptri += (sc->sc_width - adp->va_info.vi_cwidth);
  400         }
  401 }
  402 
  403 static void
  404 xbr_blink_cursor(scr_stat* scp, int at, int flip)
  405 {
  406 }
  407 
  408 static void
  409 xbr_set_mouse(scr_stat* scp)
  410 {
  411 }
  412 
  413 static void
  414 xbr_draw_mouse(scr_stat* scp, int x, int y, int on)
  415 {
  416         (*vidsw[scp->sc->adapter]->putm)(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
  417 
  418 }
  419 
  420 static int
  421 xboxfb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
  422 {
  423         bcopy(&adp->va_info, info, sizeof(*info));
  424         return (0);
  425 }
  426 
  427 static int
  428 xboxfb_query_mode(video_adapter_t *adp, video_info_t *info)
  429 {
  430         return (ENODEV);
  431 }
  432 
  433 static int
  434 xboxfb_set_mode(video_adapter_t *adp, int mode)
  435 {
  436         return (0);
  437 }
  438 
  439 static int
  440 xboxfb_save_font(video_adapter_t *adp, int page, int size, int width,
  441     u_char *data, int c, int count)
  442 {
  443         return (ENODEV);
  444 }
  445 
  446 static int
  447 xboxfb_load_font(video_adapter_t *adp, int page, int size, int width,
  448     u_char *data, int c, int count)
  449 {
  450         return (ENODEV);
  451 }
  452 
  453 static int
  454 xboxfb_show_font(video_adapter_t *adp, int page)
  455 {
  456         return (ENODEV);
  457 }
  458 
  459 static int
  460 xboxfb_save_palette(video_adapter_t *adp, u_char *palette)
  461 {
  462         return (ENODEV);
  463 }
  464 
  465 static int
  466 xboxfb_load_palette(video_adapter_t *adp, u_char *palette)
  467 {
  468         return (ENODEV);
  469 }
  470 
  471 static int
  472 xboxfb_set_border(video_adapter_t *adp, int border)
  473 {
  474         return (0);
  475 }
  476 
  477 static int
  478 xboxfb_save_state(video_adapter_t *adp, void *p, size_t size)
  479 {
  480         return (ENODEV);
  481 }
  482 
  483 static int
  484 xboxfb_load_state(video_adapter_t *adp, void *p)
  485 {
  486         return (ENODEV);
  487 }
  488 
  489 static int
  490 xboxfb_set_win_org(video_adapter_t *adp, off_t offset)
  491 {
  492         return (ENODEV);
  493 }
  494 
  495 static int
  496 xboxfb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
  497 {
  498         *col = 0;
  499         *row = 0;
  500         return (0);
  501 }
  502 
  503 static int
  504 xboxfb_set_hw_cursor(video_adapter_t *adp, int col, int row)
  505 {
  506         return (ENODEV);
  507 }
  508 
  509 static int
  510 xboxfb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
  511     int celsize, int blink)
  512 {
  513         return (ENODEV);
  514 }
  515 
  516 static int
  517 xboxfb_blank_display(video_adapter_t *adp, int mode)
  518 {
  519         return (0);
  520 }
  521 
  522 static int
  523 xboxfb_mmap(video_adapter_t *adp, vm_offset_t offset, vm_paddr_t *paddr,
  524     int prot)
  525 {
  526         return (EINVAL);
  527 }
  528 
  529 static int
  530 xboxfb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
  531 {
  532         return (fb_commonioctl(adp, cmd, data));
  533 }
  534 
  535 static int
  536 xboxfb_clear(video_adapter_t *adp)
  537 {
  538         return (0);
  539 }
  540 
  541 static int
  542 xboxfb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
  543 {
  544         return (0);
  545 }
  546 
  547 static int
  548 xboxfb_bitblt(video_adapter_t *adp, ...)
  549 {
  550         return (ENODEV);
  551 }
  552 
  553 static int
  554 xboxfb_diag(video_adapter_t *adp, int level)
  555 {
  556         video_info_t info;
  557 
  558         fb_dump_adp_info(adp->va_name, adp, level);
  559         xboxfb_get_info(adp, 0, &info);
  560         fb_dump_mode_info(adp->va_name, adp, &info, level);
  561         return (0);
  562 }
  563 
  564 static int
  565 xboxfb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
  566 {
  567         return (ENODEV);
  568 }
  569 
  570 static int
  571 xboxfb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
  572 {
  573         return (ENODEV);
  574 }
  575 
  576 static int
  577 xboxfb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
  578 {
  579         return (ENODEV);
  580 }
  581 
  582 static int
  583 xboxfb_putp(video_adapter_t *adp, vm_offset_t off, u_int32_t p, u_int32_t a,
  584     int size, int bpp, int bit_ltor, int byte_ltor)
  585 {
  586         return (ENODEV);
  587 }
  588 
  589 static int
  590 xboxfb_putc(video_adapter_t *adp, vm_offset_t off, u_int8_t c, u_int8_t a)
  591 {
  592         int row, col;
  593         int i, j;
  594         struct xboxfb_softc* sc = &xboxfb_sc;
  595         uint32_t* ptri = (uint32_t*)sc->sc_framebuffer;
  596         uint8_t* fontdata;
  597         uint32_t clr;
  598         uint8_t mask;
  599 
  600         /* calculate the position in the frame buffer */
  601         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
  602         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
  603         fontdata = &sc->sc_font->data[c * adp->va_info.vi_cheight];
  604         ptri += (row * sc->sc_width) + col;
  605 
  606         /* Place the character on the screen, pixel by pixel */
  607         for (j = 0; j < adp->va_info.vi_cheight; j++) {
  608                 mask = 0x80;
  609                 for (i = 0; i < adp->va_info.vi_cwidth; i++) {
  610                         clr = (*fontdata & mask) ? cmap[a & 0xf] : cmap[(a >> 4) & 0xf];
  611                         *ptri++ = clr;
  612                         mask >>= 1;
  613                 }
  614                 ptri += (sc->sc_width - adp->va_info.vi_cwidth);
  615                 fontdata++;
  616         }
  617         return (0);
  618 }
  619 
  620 static int
  621 xboxfb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
  622 {
  623         int i;
  624 
  625         for (i = 0; i < len; i++) {
  626                 (*vidsw[adp->va_index]->putc)(adp, off + i, s[i] & 0xff,
  627                     (s[i] & 0xff00) >> 8);
  628         }
  629         return (0);
  630 }
  631 
  632 static int
  633 xboxfb_putm(video_adapter_t *adp, int x, int y, u_int8_t *pixel_image,
  634     u_int32_t pixel_mask, int size, int width)
  635 {
  636         struct xboxfb_softc* sc = &xboxfb_sc;
  637         uint32_t* ptri = (uint32_t*)sc->sc_framebuffer;
  638         int i, j;       
  639 
  640         if (x < 0 || y < 0 || x + width > sc->sc_width || y + (2 * size) > sc->sc_height)
  641                 return 0;
  642 
  643         ptri += (y * sc->sc_width) + x;
  644 
  645         /* plot the mousecursor wherever the user wants it */
  646         for (j = 0; j < size; j++) {
  647                 for (i = width; i > 0; i--) {
  648                         if (pixel_image[j] & (1 << i))
  649                                 *ptri = cmap[0xf];
  650                         ptri++;
  651                 }
  652                 ptri += (sc->sc_width - width);
  653         }
  654         return (0);
  655 }

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