The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/sti.c

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    1 /* $NetBSD: sti.c,v 1.3 2005/02/27 00:27:02 perry Exp $ */
    2 
    3 /*      $OpenBSD: sti.c,v 1.35 2003/12/16 06:07:13 mickey Exp $ */
    4 
    5 /*
    6  * Copyright (c) 2000-2003 Michael Shalayeff
    7  * All rights reserved.
    8  *
    9  * Redistribution and use in source and binary forms, with or without
   10  * modification, are permitted provided that the following conditions
   11  * are met:
   12  * 1. Redistributions of source code must retain the above copyright
   13  *    notice, this list of conditions and the following disclaimer.
   14  * 2. Redistributions in binary form must reproduce the above copyright
   15  *    notice, this list of conditions and the following disclaimer in the
   16  *    documentation and/or other materials provided with the distribution.
   17  *
   18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   21  * IN NO EVENT SHALL THE AUTHOR OR HIS RELATIVES BE LIABLE FOR ANY DIRECT,
   22  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   24  * SERVICES; LOSS OF MIND, USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
   26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
   27  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   28  * THE POSSIBILITY OF SUCH DAMAGE.
   29  */
   30 /*
   31  * TODO:
   32  *      call sti procs asynchronously;
   33  *      implement console scroll-back;
   34  *      X11 support.
   35  */
   36 
   37 #include <sys/cdefs.h>
   38 __KERNEL_RCSID(0, "$NetBSD: sti.c,v 1.3 2005/02/27 00:27:02 perry Exp $");
   39 
   40 #include "wsdisplay.h"
   41 
   42 #include <sys/param.h>
   43 #include <sys/systm.h>
   44 #include <sys/device.h>
   45 #include <sys/malloc.h>
   46 
   47 #include <uvm/uvm.h>
   48 
   49 #include <machine/bus.h>
   50 
   51 #include <dev/wscons/wsdisplayvar.h>
   52 #include <dev/wscons/wsconsio.h>
   53 
   54 #include <dev/ic/stireg.h>
   55 #include <dev/ic/stivar.h>
   56 
   57 void sti_cursor(void *, int, int, int);
   58 int  sti_mapchar(void *, int, u_int *);
   59 void sti_putchar(void *, int, int, u_int, long);
   60 void sti_copycols(void *, int, int, int, int);
   61 void sti_erasecols(void *, int, int, int, long);
   62 void sti_copyrows(void *, int, int, int);
   63 void sti_eraserows(void *, int, int, long);
   64 int  sti_alloc_attr(void *, int, int, int, long *);
   65 
   66 struct wsdisplay_emulops sti_emulops = {
   67         sti_cursor,
   68         sti_mapchar,
   69         sti_putchar,
   70         sti_copycols,
   71         sti_erasecols,
   72         sti_copyrows,
   73         sti_eraserows,
   74         sti_alloc_attr
   75 };
   76 
   77 int sti_ioctl(void *, u_long, caddr_t, int, struct proc *);
   78 paddr_t sti_mmap(void *, off_t, int);
   79 int sti_alloc_screen(void *, const struct wsscreen_descr *,
   80         void **, int *, int *, long *);
   81         void sti_free_screen(void *, void *);
   82 int sti_show_screen(void *, void *, int, void (*cb)(void *, int, int), void *);
   83 int sti_load_font(void *, void *, struct wsdisplay_font *);
   84 
   85 const struct wsdisplay_accessops sti_accessops = {
   86         sti_ioctl,
   87         sti_mmap,
   88         sti_alloc_screen,
   89         sti_free_screen,
   90         sti_show_screen,
   91         sti_load_font
   92 };
   93 
   94 struct wsscreen_descr sti_default_screen = {
   95         "default", 0, 0,
   96         &sti_emulops,
   97         0, 0,
   98         WSSCREEN_REVERSE | WSSCREEN_UNDERLINE
   99 };
  100 
  101 const struct wsscreen_descr *sti_default_scrlist[] = {
  102         &sti_default_screen
  103 };
  104 
  105 struct wsscreen_list sti_default_screenlist = {
  106         sizeof(sti_default_scrlist) / sizeof(sti_default_scrlist[0]),
  107         sti_default_scrlist
  108 };
  109 
  110 enum sti_bmove_funcs {
  111         bmf_clear, bmf_copy, bmf_invert, bmf_underline
  112 };
  113 
  114 int sti_init(struct sti_softc *, int);
  115 int sti_inqcfg(struct sti_softc *, struct sti_inqconfout *);
  116 void sti_bmove(struct sti_softc *, int, int, int, int, int, int,
  117     enum sti_bmove_funcs);
  118 int sti_setcment(struct sti_softc *, u_int, u_char, u_char, u_char);
  119 int sti_fetchfonts(struct sti_softc *, struct sti_inqconfout *, u_int32_t);
  120 void sti_attach_deferred(struct device *);
  121 
  122 void
  123 sti_attach_common(struct sti_softc *sc)
  124 {
  125         struct sti_inqconfout cfg;
  126         struct sti_einqconfout ecfg;
  127         bus_space_handle_t fbh;
  128         struct sti_dd *dd;
  129         struct sti_cfg *cc;
  130         int error, size, i;
  131         u_int8_t *p = (u_int8_t *)sc->sc_code;
  132         u_int32_t addr, eaddr;
  133         struct sti_region r;
  134         u_int32_t *q;
  135         uint32_t tmp;
  136 
  137         dd = &sc->sc_dd;
  138         if (sc->sc_devtype == STI_DEVTYPE1) {
  139 #define parseshort(o) \
  140         ((bus_space_read_1(sc->memt, sc->romh, (o) + 3) <<  8) | \
  141          (bus_space_read_1(sc->memt, sc->romh, (o) + 7)))
  142 #define parseword(o) \
  143         ((bus_space_read_1(sc->memt, sc->romh, (o) +  3) << 24) | \
  144          (bus_space_read_1(sc->memt, sc->romh, (o) +  7) << 16) | \
  145          (bus_space_read_1(sc->memt, sc->romh, (o) + 11) <<  8) | \
  146          (bus_space_read_1(sc->memt, sc->romh, (o) + 15)))
  147 
  148                 dd->dd_type  = bus_space_read_1(sc->memt, sc->romh, 0x03);
  149                 dd->dd_nmon  = bus_space_read_1(sc->memt, sc->romh, 0x07);
  150                 dd->dd_grrev = bus_space_read_1(sc->memt, sc->romh, 0x0b);
  151                 dd->dd_lrrev = bus_space_read_1(sc->memt, sc->romh, 0x0f);
  152                 dd->dd_grid[0] = parseword(0x10);
  153                 dd->dd_grid[1] = parseword(0x20);
  154                 dd->dd_fntaddr = parseword(0x30) & ~3;
  155                 dd->dd_maxst   = parseword(0x40);
  156                 dd->dd_romend  = parseword(0x50) & ~3;
  157                 dd->dd_reglst  = parseword(0x60) & ~3;
  158                 dd->dd_maxreent= parseshort(0x70);
  159                 dd->dd_maxtimo = parseshort(0x78);
  160                 dd->dd_montbl  = parseword(0x80) & ~3;
  161                 dd->dd_udaddr  = parseword(0x90) & ~3;
  162                 dd->dd_stimemreq=parseword(0xa0);
  163                 dd->dd_udsize  = parseword(0xb0);
  164                 dd->dd_pwruse  = parseshort(0xc0);
  165                 dd->dd_bussup  = bus_space_read_1(sc->memt, sc->romh, 0xcb);
  166                 dd->dd_ebussup = bus_space_read_1(sc->memt, sc->romh, 0xcf);
  167                 dd->dd_altcodet= bus_space_read_1(sc->memt, sc->romh, 0xd3);
  168                 dd->dd_eddst[0]= bus_space_read_1(sc->memt, sc->romh, 0xd7);
  169                 dd->dd_eddst[1]= bus_space_read_1(sc->memt, sc->romh, 0xdb);
  170                 dd->dd_eddst[2]= bus_space_read_1(sc->memt, sc->romh, 0xdf);
  171                 dd->dd_cfbaddr = parseword(0xe0) & ~3;
  172 
  173                 dd->dd_pacode[0x0] = parseword(0x100) & ~3;
  174                 dd->dd_pacode[0x1] = parseword(0x110) & ~3;
  175                 dd->dd_pacode[0x2] = parseword(0x120) & ~3;
  176                 dd->dd_pacode[0x3] = parseword(0x130) & ~3;
  177                 dd->dd_pacode[0x4] = parseword(0x140) & ~3;
  178                 dd->dd_pacode[0x5] = parseword(0x150) & ~3;
  179                 dd->dd_pacode[0x6] = parseword(0x160) & ~3;
  180                 dd->dd_pacode[0x7] = parseword(0x170) & ~3;
  181                 dd->dd_pacode[0x8] = parseword(0x180) & ~3;
  182                 dd->dd_pacode[0x9] = parseword(0x190) & ~3;
  183                 dd->dd_pacode[0xa] = parseword(0x1a0) & ~3;
  184                 dd->dd_pacode[0xb] = parseword(0x1b0) & ~3;
  185                 dd->dd_pacode[0xc] = parseword(0x1c0) & ~3;
  186                 dd->dd_pacode[0xd] = parseword(0x1d0) & ~3;
  187                 dd->dd_pacode[0xe] = parseword(0x1e0) & ~3;
  188                 dd->dd_pacode[0xf] = parseword(0x1f0) & ~3;
  189         } else  /* STI_DEVTYPE4 */
  190                 bus_space_read_region_4(sc->memt, sc->romh, 0, (u_int32_t *)dd,
  191                     sizeof(*dd) / 4);
  192 
  193 #ifdef STIDEBUG
  194         printf("dd:\n"
  195             "devtype=%x, rev=%x;%d, altt=%x, gid=%016llx, font=%x, mss=%x\n"
  196             "end=%x, regions=%x, msto=%x, timo=%d, mont=%x, user=%x[%x]\n"
  197             "memrq=%x, pwr=%d, bus=%x, ebus=%x, cfb=%x\n"
  198             "code=",
  199             dd->dd_type & 0xff, dd->dd_grrev, dd->dd_lrrev, dd->dd_altcodet,
  200             *(u_int64_t *)dd->dd_grid, dd->dd_fntaddr, dd->dd_maxst,
  201             dd->dd_romend, dd->dd_reglst, dd->dd_maxreent, dd->dd_maxtimo,
  202             dd->dd_montbl, dd->dd_udaddr, dd->dd_udsize, dd->dd_stimemreq,
  203             dd->dd_pwruse, dd->dd_bussup, dd->dd_ebussup, dd->dd_cfbaddr);
  204         printf("%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x,%x\n",
  205             dd->dd_pacode[0x0], dd->dd_pacode[0x1], dd->dd_pacode[0x2],
  206             dd->dd_pacode[0x3], dd->dd_pacode[0x4], dd->dd_pacode[0x5],
  207             dd->dd_pacode[0x6], dd->dd_pacode[0x7], dd->dd_pacode[0x8],
  208             dd->dd_pacode[0x9], dd->dd_pacode[0xa], dd->dd_pacode[0xb],
  209             dd->dd_pacode[0xc], dd->dd_pacode[0xd], dd->dd_pacode[0xe],
  210             dd->dd_pacode[0xf]);
  211 #endif
  212         /* divise code size, could be less than STI_END entries */
  213         for (i = STI_END; !dd->dd_pacode[i]; i--);
  214         size = dd->dd_pacode[i] - dd->dd_pacode[STI_BEGIN];
  215         if (sc->sc_devtype == STI_DEVTYPE1)
  216                 size = (size + 3) / 4;
  217         if (!(sc->sc_code = uvm_km_alloc1(kernel_map, round_page(size), 0))) {
  218                 printf(": cannot allocate %u bytes for code\n", size);
  219                 return;
  220         }
  221 #ifdef STIDEBUG
  222         printf("code=0x%x[%x]\n", (uint)sc->sc_code, size);
  223 #endif
  224 
  225         /* copy code into memory */
  226         if (sc->sc_devtype == STI_DEVTYPE1) {
  227                 p = (u_int8_t *)sc->sc_code;
  228                 for (addr = dd->dd_pacode[STI_BEGIN], eaddr = addr + size * 4;
  229                     addr < eaddr; addr += 4 )
  230                         *p++ = bus_space_read_4(sc->memt, sc->romh, addr)
  231                             & 0xff;
  232 
  233         } else  /* STI_DEVTYPE4 */
  234                 bus_space_read_region_4(sc->memt, sc->romh,
  235                     dd->dd_pacode[STI_BEGIN], (u_int32_t *)sc->sc_code,
  236                     size / 4);
  237 
  238 #define O(i)    (dd->dd_pacode[(i)] ? (sc->sc_code +    \
  239         (dd->dd_pacode[(i)] - dd->dd_pacode[0]) /       \
  240         (sc->sc_devtype == STI_DEVTYPE1 ? 4 : 1)) : 0)
  241         sc->init        = (sti_init_t)  O(STI_INIT_GRAPH);
  242         sc->mgmt        = (sti_mgmt_t)  O(STI_STATE_MGMT);
  243         sc->unpmv       = (sti_unpmv_t) O(STI_FONT_UNPMV);
  244         sc->blkmv       = (sti_blkmv_t) O(STI_BLOCK_MOVE);
  245         sc->test        = (sti_test_t)  O(STI_SELF_TEST);
  246         sc->exhdl       = (sti_exhdl_t) O(STI_EXCEP_HDLR);
  247         sc->inqconf     = (sti_inqconf_t)O(STI_INQ_CONF);
  248         sc->scment      = (sti_scment_t)O(STI_SCM_ENT);
  249         sc->dmac        = (sti_dmac_t)  O(STI_DMA_CTRL);
  250         sc->flowc       = (sti_flowc_t) O(STI_FLOW_CTRL);
  251         sc->utiming     = (sti_utiming_t)O(STI_UTIMING);
  252         sc->pmgr        = (sti_pmgr_t)  O(STI_PROC_MGR);
  253         sc->util        = (sti_util_t)  O(STI_UTIL);
  254 
  255         if ((error = uvm_map_protect(kernel_map, sc->sc_code,
  256             sc->sc_code + round_page(size), UVM_PROT_RX, FALSE))) {
  257                 printf(": uvm_map_protect failed (%d)\n", error);
  258                 uvm_km_free(kernel_map, sc->sc_code, round_page(size));
  259                 return;
  260         }
  261 
  262         cc = &sc->sc_cfg;
  263         memset(cc, 0, sizeof (*cc));
  264         i = dd->dd_reglst;
  265 #ifdef STIDEBUG
  266         printf("stiregions @%d:\n", i);
  267 #endif
  268         r.last = 0;
  269         for (q = cc->regions; !r.last &&
  270              q < &cc->regions[STI_REGION_MAX]; q++) {
  271 
  272                 if (sc->sc_devtype == STI_DEVTYPE1)
  273                         tmp = parseword(i), i += 16;
  274                 else
  275                         tmp = bus_space_read_4(sc->memt, sc->romh, i), i += 4;
  276                 memcpy(&r, &tmp, sizeof (r));
  277 
  278                 *q = (q == cc->regions ? sc->romh : sc->base) +
  279                     (r.offset << PGSHIFT);
  280 #ifdef STIDEBUG
  281                 printf("%x @ 0x%x%s%s%s%s\n",
  282                     r.length << PGSHIFT, *q, r.sys_only ? " sys" : "",
  283                     r.cache ? " cache" : "", r.btlb ? " btlb" : "",
  284                     r.last ? " last" : "");
  285 #endif
  286 
  287                 /* rom has already been mapped */
  288                 if (q != cc->regions) {
  289                         if (bus_space_map(sc->memt, *q,
  290                             r.length << PGSHIFT, 0, &fbh)) {
  291 #ifdef STIDEBUG
  292                                 printf("already mapped region\n");
  293 #endif
  294                         } else {
  295                                 if (q - cc->regions == 1) {
  296                                         sc->fbaddr = *q;
  297                                         sc->fblen = r.length << PGSHIFT;
  298                                 }
  299                                 *q = fbh;
  300                         }
  301                 }
  302         }
  303 
  304         if ((error = sti_init(sc, 0))) {
  305                 printf(": can not initialize (%d)\n", error);
  306                 return;
  307         }
  308 
  309         memset(&cfg, 0, sizeof(cfg));
  310         memset(&ecfg, 0, sizeof(ecfg));
  311         cfg.ext = &ecfg;
  312         if ((error = sti_inqcfg(sc, &cfg))) {
  313                 printf(": error %d inquiring config\n", error);
  314                 return;
  315         }
  316 
  317         if ((error = sti_init(sc, STI_TEXTMODE))) {
  318                 printf(": can not initialize (%d)\n", error);
  319                 return;
  320         }
  321 
  322 #ifdef STIDEBUG
  323         printf("conf: bpp=%d planes=%d attr=%d\n"
  324             "crt=0x%x:0x%x:0x%x hw=0x%x:0x%x:0x%x\n",
  325             cfg.bpp, cfg.planes, cfg.attributes,
  326             ecfg.crt_config[0], ecfg.crt_config[1], ecfg.crt_config[2],
  327             ecfg.crt_hw[0], ecfg.crt_hw[1], ecfg.crt_hw[2]);
  328 #endif
  329         sc->sc_wsmode = WSDISPLAYIO_MODE_EMUL;
  330         sc->sc_bpp = cfg.bppu;
  331         printf(": %s rev %d.%02d;%d, ID 0x%016llX\n"
  332             "%s: %dx%d frame buffer, %dx%dx%d display, offset %dx%d\n",
  333             cfg.name, dd->dd_grrev >> 4, dd->dd_grrev & 0xf, dd->dd_lrrev,
  334             *(u_int64_t *)dd->dd_grid, sc->sc_dev.dv_xname, cfg.fbwidth,
  335             cfg.fbheight, cfg.width, cfg.height, cfg.bppu, cfg.owidth,
  336             cfg.oheight);
  337 
  338         if ((error = sti_fetchfonts(sc, &cfg, dd->dd_fntaddr))) {
  339                 printf("%s: cannot fetch fonts (%d)\n", sc->sc_dev.dv_xname,
  340                     error);
  341                 return;
  342         }
  343 
  344         /*
  345          * parse screen descriptions:
  346          *      figure number of fonts supported;
  347          *      allocate wscons structures;
  348          *      calculate dimensions.
  349          */
  350 
  351         sti_default_screen.ncols = cfg.width / sc->sc_curfont.width;
  352         sti_default_screen.nrows = cfg.height / sc->sc_curfont.height;
  353         sti_default_screen.fontwidth = sc->sc_curfont.width;
  354         sti_default_screen.fontheight = sc->sc_curfont.height;
  355 
  356 #if NWSDISPLAY > 0
  357         config_interrupts(&sc->sc_dev, sti_attach_deferred);
  358 #endif
  359 
  360 }
  361 
  362 void
  363 sti_attach_deferred(struct device *dev)
  364 {
  365         struct sti_softc *sc = (struct sti_softc *) dev;
  366         struct wsemuldisplaydev_attach_args waa;
  367         long defattr;
  368 
  369         waa.console = sc->sc_flags & STI_CONSOLE ? 1 : 0;
  370         waa.scrdata = &sti_default_screenlist;
  371         waa.accessops = &sti_accessops;
  372         waa.accesscookie = sc;
  373 
  374         /* attach as console if required */
  375         if (waa.console) {
  376                 sti_alloc_attr(sc, 0, 0, 0, &defattr);
  377                 wsdisplay_cnattach(&sti_default_screen, sc,
  378                     0, sti_default_screen.nrows - 1, defattr);
  379         }
  380 
  381         config_found(&sc->sc_dev, &waa, wsemuldisplaydevprint);
  382 }
  383 
  384 int
  385 sti_fetchfonts(struct sti_softc *sc, struct sti_inqconfout *cfg, u_int32_t addr)
  386 {
  387         struct sti_font *fp = &sc->sc_curfont;
  388         int size;
  389 #ifdef notyet
  390         int uc;
  391         struct {
  392                 struct sti_unpmvflags flags;
  393                 struct sti_unpmvin in;
  394                 struct sti_unpmvout out;
  395         } a;
  396 #endif
  397 
  398         /*
  399          * Get the first PROM font in memory
  400          */
  401         do {
  402                 if (sc->sc_devtype == STI_DEVTYPE1) {
  403                         fp->first  = parseshort(addr + 0x00);
  404                         fp->last   = parseshort(addr + 0x08);
  405                         fp->width  = bus_space_read_1(sc->memt, sc->romh,
  406                             addr + 0x13);
  407                         fp->height = bus_space_read_1(sc->memt, sc->romh,
  408                             addr + 0x17);
  409                         fp->type   = bus_space_read_1(sc->memt, sc->romh,
  410                             addr + 0x1b);
  411                         fp->bpc    = bus_space_read_1(sc->memt, sc->romh,
  412                             addr + 0x1f);
  413                         fp->next   = parseword(addr + 0x23);
  414                         fp->uheight= bus_space_read_1(sc->memt, sc->romh,
  415                             addr + 0x33);
  416                         fp->uoffset= bus_space_read_1(sc->memt, sc->romh,
  417                             addr + 0x37);
  418                 } else  /* STI_DEVTYPE4 */
  419                         bus_space_read_region_4(sc->memt, sc->romh, addr,
  420                             (u_int32_t *)fp, sizeof(struct sti_font) / 4);
  421 
  422                 printf("%s: %dx%d font type %d, %d bpc, charset %d-%d\n",
  423                     sc->sc_dev.dv_xname, fp->width, fp->height, fp->type,
  424                     fp->bpc, fp->first, fp->last);
  425 
  426                 size = sizeof(struct sti_font) +
  427                     (fp->last - fp->first + 1) * fp->bpc;
  428                 if (sc->sc_devtype == STI_DEVTYPE1)
  429                         size *= 4;
  430                 sc->sc_romfont = malloc(size, M_DEVBUF, M_NOWAIT);
  431                 if (sc->sc_romfont == NULL)
  432                         return (ENOMEM);
  433 
  434                 bus_space_read_region_4(sc->memt, sc->romh, addr,
  435                     (u_int32_t *)sc->sc_romfont, size / 4);
  436 
  437                 addr = 0; /* fp->next */
  438         } while (addr);
  439 
  440 #ifdef notyet
  441         /*
  442          * If there is enough room in the off-screen framebuffer memory,
  443          * display all the characters there in order to display them
  444          * faster with blkmv operations rather than unpmv later on.
  445          */
  446         if (size <= cfg->fbheight *
  447             (cfg->fbwidth - cfg->width - cfg->owidth)) {
  448                 memset(&a, 0, sizeof(a));
  449                 a.flags.flags = STI_UNPMVF_WAIT;
  450                 a.in.fg_colour = STI_COLOUR_WHITE;
  451                 a.in.bg_colour = STI_COLOUR_BLACK;
  452                 a.in.font_addr = sc->sc_romfont;
  453 
  454                 sc->sc_fontmaxcol = cfg->fbheight / fp->height;
  455                 sc->sc_fontbase = cfg->width + cfg->owidth;
  456                 for (uc = fp->first; uc <= fp->last; uc++) {
  457                         a.in.x = ((uc - fp->first) / sc->sc_fontmaxcol) *
  458                             fp->width + sc->sc_fontbase;
  459                         a.in.y = ((uc - fp->first) % sc->sc_fontmaxcol) *
  460                             fp->height;
  461                         a.in.index = uc;
  462 
  463                         (*sc->unpmv)(&a.flags, &a.in, &a.out, &sc->sc_cfg);
  464                         if (a.out.errno) {
  465                                 printf("%s: unpmv %d returned %d\n",
  466                                     sc->sc_dev.dv_xname, uc, a.out.errno);
  467                                 return (0);
  468                         }
  469                 }
  470 
  471                 free(sc->sc_romfont, M_DEVBUF);
  472                 sc->sc_romfont = NULL;
  473         }
  474 #endif
  475 
  476         return (0);
  477 }
  478 
  479 int
  480 sti_init(struct sti_softc *sc, int mode)
  481 {
  482         struct {
  483                 struct sti_initflags flags;
  484                 struct sti_initin in;
  485                 struct sti_initout out;
  486         } a;
  487 
  488         memset(&a, 0, sizeof(a));
  489 
  490         a.flags.flags = STI_INITF_WAIT | STI_INITF_CMB | STI_INITF_EBET |
  491             (mode & STI_TEXTMODE ? STI_INITF_TEXT | STI_INITF_PBET |
  492              STI_INITF_PBETI | STI_INITF_ICMT : 0);
  493         a.in.text_planes = 1;
  494 #ifdef STIDEBUG
  495         printf("%s: init,%p(%x, %p, %p, %p)\n", sc->sc_dev.dv_xname,
  496             sc->init, a.flags.flags, &a.in, &a.out, &sc->sc_cfg);
  497 #endif
  498         (*sc->init)(&a.flags, &a.in, &a.out, &sc->sc_cfg);
  499         return (a.out.text_planes != a.in.text_planes || a.out.errno);
  500 }
  501 
  502 int
  503 sti_inqcfg(struct sti_softc *sc, struct sti_inqconfout *out)
  504 {
  505         struct {
  506                 struct sti_inqconfflags flags;
  507                 struct sti_inqconfin in;
  508         } a;
  509 
  510         memset(&a, 0, sizeof(a));
  511 
  512         a.flags.flags = STI_INQCONFF_WAIT;
  513         (*sc->inqconf)(&a.flags, &a.in, out, &sc->sc_cfg);
  514 
  515         return out->errno;
  516 }
  517 
  518 void
  519 sti_bmove(struct sti_softc *sc, int x1, int y1, int x2, int y2, int h, int w,
  520     enum sti_bmove_funcs f)
  521 {
  522         struct {
  523                 struct sti_blkmvflags flags;
  524                 struct sti_blkmvin in;
  525                 struct sti_blkmvout out;
  526         } a;
  527 
  528         memset(&a, 0, sizeof(a));
  529 
  530         a.flags.flags = STI_BLKMVF_WAIT;
  531         switch (f) {
  532         case bmf_clear:
  533                 a.flags.flags |= STI_BLKMVF_CLR;
  534                 a.in.bg_colour = STI_COLOUR_BLACK;
  535                 break;
  536         case bmf_underline:
  537         case bmf_copy:
  538                 a.in.fg_colour = STI_COLOUR_WHITE;
  539                 a.in.bg_colour = STI_COLOUR_BLACK;
  540                 break;
  541         case bmf_invert:
  542                 a.flags.flags |= STI_BLKMVF_COLR;
  543                 a.in.fg_colour = STI_COLOUR_BLACK;
  544                 a.in.bg_colour = STI_COLOUR_WHITE;
  545                 break;
  546         }
  547         a.in.srcx = x1;
  548         a.in.srcy = y1;
  549         a.in.dstx = x2;
  550         a.in.dsty = y2;
  551         a.in.height = h;
  552         a.in.width = w;
  553 
  554         (*sc->blkmv)(&a.flags, &a.in, &a.out, &sc->sc_cfg);
  555 #ifdef STIDEBUG
  556         if (a.out.errno)
  557                 printf("%s: blkmv returned %d\n", sc->sc_dev.dv_xname,
  558                     a.out.errno);
  559 #endif
  560 }
  561 
  562 int
  563 sti_setcment(struct sti_softc *sc, u_int i, u_char r, u_char g, u_char b)
  564 {
  565         struct {
  566                 struct sti_scmentflags flags;
  567                 struct sti_scmentin in;
  568                 struct sti_scmentout out;
  569         } a;
  570 
  571         memset(&a, 0, sizeof(a));
  572 
  573         a.flags.flags = STI_SCMENTF_WAIT;
  574         a.in.entry = i;
  575         a.in.value = (r << 16) | (g << 8) | b;
  576 
  577         (*sc->scment)(&a.flags, &a.in, &a.out, &sc->sc_cfg);
  578 
  579         return a.out.errno;
  580 }
  581 
  582 int
  583 sti_ioctl(void *v, u_long cmd, caddr_t data, int flag, struct proc *p)
  584 {
  585         struct sti_softc *sc = v;
  586         struct wsdisplay_fbinfo *wdf;
  587         struct wsdisplay_cmap *cmapp;
  588         u_int mode, idx, count;
  589         int i, ret;
  590 
  591         ret = 0;
  592         switch (cmd) {
  593         case WSDISPLAYIO_GMODE:
  594                 *(u_int *)data = sc->sc_wsmode;
  595                 break;
  596 
  597         case WSDISPLAYIO_SMODE:
  598                 mode = *(u_int *)data;
  599                 if (sc->sc_wsmode == WSDISPLAYIO_MODE_EMUL &&
  600                     mode == WSDISPLAYIO_MODE_DUMBFB)
  601                         ret = sti_init(sc, 0);
  602                 else if (sc->sc_wsmode == WSDISPLAYIO_MODE_DUMBFB &&
  603                     mode == WSDISPLAYIO_MODE_EMUL)
  604                         ret = sti_init(sc, STI_TEXTMODE);
  605                 sc->sc_wsmode = mode;
  606                 break;
  607 
  608         case WSDISPLAYIO_GTYPE:
  609                 *(u_int *)data = WSDISPLAY_TYPE_STI;
  610                 break;
  611 
  612         case WSDISPLAYIO_GINFO:
  613                 wdf = (struct wsdisplay_fbinfo *)data;
  614                 wdf->height = sc->sc_cfg.scr_height;
  615                 wdf->width  = sc->sc_cfg.scr_width;
  616                 wdf->depth  = sc->sc_bpp;
  617                 wdf->cmsize = STI_NCMAP;
  618                 break;
  619 
  620         case WSDISPLAYIO_LINEBYTES:
  621                 *(u_int *)data = sc->sc_cfg.fb_width;
  622                 break;
  623 
  624         case WSDISPLAYIO_GETCMAP:
  625                 if (sc->scment == NULL)
  626                         return ENOTTY;
  627                 cmapp = (struct wsdisplay_cmap *)data;
  628                 idx = cmapp->index;
  629                 count = cmapp->count;
  630                 if (idx > STI_NCMAP || idx + count >= STI_NCMAP)
  631                         return EINVAL;
  632                 if ((ret = copyout(&sc->sc_rcmap[idx], cmapp->red, count)))
  633                         break;
  634                 if ((ret = copyout(&sc->sc_gcmap[idx], cmapp->green, count)))
  635                         break;
  636                 if ((ret = copyout(&sc->sc_bcmap[idx], cmapp->blue, count)))
  637                         break;
  638                 break;
  639 
  640         case WSDISPLAYIO_PUTCMAP:
  641                 if (sc->scment == NULL)
  642                         return ENOTTY;
  643                 cmapp = (struct wsdisplay_cmap *)data;
  644                 idx = cmapp->index;
  645                 count = cmapp->count;
  646                 if (idx > STI_NCMAP || idx + count >= STI_NCMAP)
  647                         return EINVAL;
  648                 if ((ret = copyin(cmapp->red, &sc->sc_rcmap[idx], count)))
  649                         break;
  650                 if ((ret = copyin(cmapp->green, &sc->sc_gcmap[idx], count)))
  651                         break;
  652                 if ((ret = copyin(cmapp->blue, &sc->sc_bcmap[idx], count)))
  653                         break;
  654                 for (i = idx + count - 1; i >= idx; i--)
  655                         if ((ret = sti_setcment(sc, i, sc->sc_rcmap[i],
  656                             sc->sc_gcmap[i], sc->sc_bcmap[i]))) {
  657 #ifdef STIDEBUG
  658                                 printf("sti_ioctl: "
  659                                     "sti_setcment(%d, %u, %u, %u): %%d\n", i,
  660                                     (u_int)sc->sc_rcmap[i],
  661                                     (u_int)sc->sc_gcmap[i],
  662                                     (u_int)sc->sc_bcmap[i]);
  663 #endif
  664                                 ret = EINVAL;
  665                                 break;
  666                         }
  667                 break;
  668 
  669         case WSDISPLAYIO_SVIDEO:
  670         case WSDISPLAYIO_GVIDEO:
  671         case WSDISPLAYIO_GCURPOS:
  672         case WSDISPLAYIO_SCURPOS:
  673         case WSDISPLAYIO_GCURMAX:
  674         case WSDISPLAYIO_GCURSOR:
  675         case WSDISPLAYIO_SCURSOR:
  676         default:
  677                 return (ENOTTY);        /* not supported yet */
  678         }
  679 
  680         return (ret);
  681 }
  682 
  683 paddr_t
  684 sti_mmap(void *v, off_t offset, int prot)
  685 {
  686         /* XXX not finished */
  687         return -1;
  688 }
  689 
  690 int
  691 sti_alloc_screen(void *v, const struct wsscreen_descr *type, void **cookiep,
  692     int *cxp, int *cyp, long *defattr)
  693 {
  694         struct sti_softc *sc = v;
  695 
  696         if (sc->sc_nscreens > 0)
  697                 return ENOMEM;
  698 
  699         *cookiep = sc;
  700         *cxp = 0;
  701         *cyp = 0;
  702         sti_alloc_attr(sc, 0, 0, 0, defattr);
  703         sc->sc_nscreens++;
  704         return 0;
  705 }
  706 
  707 void
  708 sti_free_screen(void *v, void *cookie)
  709 {
  710         struct sti_softc *sc = v;
  711 
  712         sc->sc_nscreens--;
  713 }
  714 
  715 int
  716 sti_show_screen(void *v, void *cookie, int waitok, void (*cb)(void *, int, int), void *cbarg)
  717 {
  718         return 0;
  719 }
  720 
  721 int
  722 sti_load_font(void *v, void *cookie, struct wsdisplay_font *font)
  723 {
  724         return -1;
  725 }
  726 
  727 void
  728 sti_cursor(void *v, int on, int row, int col)
  729 {
  730         struct sti_softc *sc = v;
  731         struct sti_font *fp = &sc->sc_curfont;
  732 
  733         sti_bmove(sc, col * fp->width, row * fp->height, col * fp->width,
  734             row * fp->height, fp->height, fp->width, bmf_invert);
  735 }
  736 
  737 int
  738 sti_mapchar(void *v, int uni, u_int *index)
  739 {
  740         if (uni < 256)
  741                 *index = uni;
  742 
  743         return 1;
  744 }
  745 
  746 void
  747 sti_putchar(void *v, int row, int col, u_int uc, long attr)
  748 {
  749         struct sti_softc *sc = v;
  750         struct sti_font *fp = &sc->sc_curfont;
  751 
  752         if (sc->sc_romfont != NULL) {
  753                 /*
  754                  * Font is in memory, use unpmv
  755                  */
  756                 struct {
  757                         struct sti_unpmvflags flags;
  758                         struct sti_unpmvin in;
  759                         struct sti_unpmvout out;
  760                 } a;
  761 
  762                 memset(&a, 0, sizeof(a));
  763 
  764                 a.flags.flags = STI_UNPMVF_WAIT;
  765                 /* XXX does not handle text attributes */
  766                 a.in.fg_colour = STI_COLOUR_WHITE;
  767                 a.in.bg_colour = STI_COLOUR_BLACK;
  768                 a.in.x = col * fp->width;
  769                 a.in.y = row * fp->height;
  770                 a.in.font_addr = sc->sc_romfont;
  771                 a.in.index = uc;
  772 
  773                 (*sc->unpmv)(&a.flags, &a.in, &a.out, &sc->sc_cfg);
  774         } else {
  775                 /*
  776                  * Font is in frame buffer, use blkmv
  777                  */
  778                 struct {
  779                         struct sti_blkmvflags flags;
  780                         struct sti_blkmvin in;
  781                         struct sti_blkmvout out;
  782                 } a;
  783 
  784                 memset(&a, 0, sizeof(a));
  785 
  786                 a.flags.flags = STI_BLKMVF_WAIT;
  787                 /* XXX does not handle text attributes */
  788                 a.in.fg_colour = STI_COLOUR_WHITE;
  789                 a.in.bg_colour = STI_COLOUR_BLACK;
  790 
  791                 a.in.srcx = ((uc - fp->first) / sc->sc_fontmaxcol) *
  792                     fp->width + sc->sc_fontbase;
  793                 a.in.srcy = ((uc - fp->first) % sc->sc_fontmaxcol) *
  794                     fp->height;
  795                 a.in.dstx = col * fp->width;
  796                 a.in.dsty = row * fp->height;
  797                 a.in.height = fp->height;
  798                 a.in.width = fp->width;
  799 
  800                 (*sc->blkmv)(&a.flags, &a.in, &a.out, &sc->sc_cfg);
  801         }
  802 }
  803 
  804 void
  805 sti_copycols(void *v, int row, int srccol, int dstcol, int ncols)
  806 {
  807         struct sti_softc *sc = v;
  808         struct sti_font *fp = &sc->sc_curfont;
  809 
  810         sti_bmove(sc, srccol * fp->width, row * fp->height, dstcol * fp->width,
  811             row * fp->height, fp->height, ncols * fp->width, bmf_copy);
  812 }
  813 
  814 void
  815 sti_erasecols(void *v, int row, int startcol, int ncols, long attr)
  816 {
  817         struct sti_softc *sc = v;
  818         struct sti_font *fp = &sc->sc_curfont;
  819 
  820         sti_bmove(sc, startcol * fp->width, row * fp->height,
  821             startcol * fp->width, row * fp->height, fp->height,
  822             ncols * fp->width, bmf_clear);
  823 }
  824 
  825 void
  826 sti_copyrows(void *v, int srcrow, int dstrow, int nrows)
  827 {
  828         struct sti_softc *sc = v;
  829         struct sti_font *fp = &sc->sc_curfont;
  830 
  831         sti_bmove(sc, sc->sc_cfg.oscr_width, srcrow * fp->height,
  832             sc->sc_cfg.oscr_width, dstrow * fp->height,
  833             nrows * fp->height, sc->sc_cfg.scr_width, bmf_copy);
  834 }
  835 
  836 void
  837 sti_eraserows(void *v, int srcrow, int nrows, long attr)
  838 {
  839         struct sti_softc *sc = v;
  840         struct sti_font *fp = &sc->sc_curfont;
  841 
  842         sti_bmove(sc, sc->sc_cfg.oscr_width, srcrow * fp->height,
  843             sc->sc_cfg.oscr_width, srcrow * fp->height,
  844             nrows * fp->height, sc->sc_cfg.scr_width, bmf_clear);
  845 }
  846 
  847 int
  848 sti_alloc_attr(void *v, int fg, int bg, int flags, long *pattr)
  849 {
  850         /* struct sti_softc *sc = v; */
  851 
  852         *pattr = 0;
  853 
  854         return 0;
  855 }
  856 

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