sys/arm/versatile/versatile_clcd.c

   1 /*
   2  * Copyright (c) 2012-2017 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/kernel.h>
  34 #include <sys/module.h>
  35 #include <sys/malloc.h>
  36 #include <sys/rman.h>
  37 #include <sys/fbio.h>
  38 #include <sys/consio.h>
  39 #include <sys/kdb.h>
  40
  41 #include <machine/bus.h>
  42 #include <machine/cpu.h>
  43 #include <machine/intr.h>
  44
  45 #include <dev/ofw/openfirm.h>
  46 #include <dev/ofw/ofw_bus.h>
  47 #include <dev/ofw/ofw_bus_subr.h>
  48
  49 #include <dev/fb/fbreg.h>
  50 #include <dev/syscons/syscons.h>
  51
  52 #include <arm/versatile/versatile_scm.h>
  53
  54 #include <machine/bus.h>
  55
  56 #define PL110_VENDOR_ARM926PXP  1
  57
  58 #define CLCD_MODE_RGB888        0x0
  59 #define CLCD_MODE_RGB555        0x01
  60 #define CLCD_MODE_RBG565        0x02
  61 #define CLCD_MODE_RGB565        0x03
  62
  63 #define CLCDC_TIMING0           0x00
  64 #define CLCDC_TIMING1           0x04
  65 #define CLCDC_TIMING2           0x08
  66 #define CLCDC_TIMING3           0x0C
  67 #define CLCDC_TIMING3           0x0C
  68 #define CLCDC_UPBASE            0x10
  69 #define CLCDC_LPBASE            0x14
  70 #ifdef PL110_VENDOR_ARM926PXP
  71 #define CLCDC_CONTROL           0x18
  72 #define CLCDC_IMSC              0x1C
  73 #else
  74 #define CLCDC_IMSC              0x18
  75 #define CLCDC_CONTROL           0x1C
  76 #endif
  77 #define         CONTROL_WATERMARK       (1 << 16)
  78 #define         CONTROL_VCOMP_VS        (0 << 12)
  79 #define         CONTROL_VCOMP_BP        (1 << 12)
  80 #define         CONTROL_VCOMP_SAV       (2 << 12)
  81 #define         CONTROL_VCOMP_FP        (3 << 12)
  82 #define         CONTROL_PWR             (1 << 11)
  83 #define         CONTROL_BEPO            (1 << 10)
  84 #define         CONTROL_BEBO            (1 << 9)
  85 #define         CONTROL_BGR             (1 << 8)
  86 #define         CONTROL_DUAL            (1 << 7)
  87 #define         CONTROL_MONO8           (1 << 6)
  88 #define         CONTROL_TFT             (1 << 5)
  89 #define         CONTROL_BW              (1 << 4)
  90 #define         CONTROL_BPP1            (0x00 << 1)
  91 #define         CONTROL_BPP2            (0x01 << 1)
  92 #define         CONTROL_BPP4            (0x02 << 1)
  93 #define         CONTROL_BPP8            (0x03 << 1)
  94 #define         CONTROL_BPP16           (0x04 << 1)
  95 #define         CONTROL_BPP24           (0x05 << 1)
  96 #define         CONTROL_EN      (1 << 0)
  97 #define CLCDC_RIS               0x20
  98 #define CLCDC_MIS               0x24
  99 #define         INTR_MBERR              (1 << 4)
 100 #define         INTR_VCOMP              (1 << 3)
 101 #define         INTR_LNB                (1 << 2)
 102 #define         INTR_FUF                (1 << 1)
 103 #define CLCDC_ICR               0x28
 104
 105 #ifdef DEBUG
 106 #define dprintf(fmt, args...) do { printf("%s(): ", __func__);   \
 107     printf(fmt,##args); } while (0)
 108 #else
 109 #define dprintf(fmt, args...)
 110 #endif
 111
 112 #define versatile_clcdc_read_4(sc, reg) \
 113         bus_read_4((sc)->mem_res, (reg))
 114 #define versatile_clcdc_write_4(sc, reg, val)   \
 115         bus_write_4((sc)->mem_res, (reg), (val))
 116
 117 struct versatile_clcdc_softc {
 118         struct resource*        mem_res;
 119
 120         struct mtx              mtx;
 121
 122         int                     width;
 123         int                     height;
 124         int                     mode;
 125
 126         bus_dma_tag_t           dma_tag;
 127         bus_dmamap_t            dma_map;
 128         bus_addr_t              fb_phys;
 129         uint8_t                 *fb_base;
 130
 131 };
 132
 133 struct video_adapter_softc {
 134         /* Videoadpater part */
 135         video_adapter_t va;
 136         int             console;
 137
 138         intptr_t        fb_addr;
 139         unsigned int    fb_size;
 140
 141         unsigned int    height;
 142         unsigned int    width;
 143         unsigned int    depth;
 144         unsigned int    stride;
 145
 146         unsigned int    xmargin;
 147         unsigned int    ymargin;
 148
 149         unsigned char   *font;
 150         int             initialized;
 151 };
 152
 153 struct argb {
 154         uint8_t         a;
 155         uint8_t         r;
 156         uint8_t         g;
 157         uint8_t         b;
 158 };
 159
 160 static struct argb versatilefb_palette[16] = {
 161         {0x00, 0x00, 0x00, 0x00},
 162         {0x00, 0x00, 0x00, 0xaa},
 163         {0x00, 0x00, 0xaa, 0x00},
 164         {0x00, 0x00, 0xaa, 0xaa},
 165         {0x00, 0xaa, 0x00, 0x00},
 166         {0x00, 0xaa, 0x00, 0xaa},
 167         {0x00, 0xaa, 0x55, 0x00},
 168         {0x00, 0xaa, 0xaa, 0xaa},
 169         {0x00, 0x55, 0x55, 0x55},
 170         {0x00, 0x55, 0x55, 0xff},
 171         {0x00, 0x55, 0xff, 0x55},
 172         {0x00, 0x55, 0xff, 0xff},
 173         {0x00, 0xff, 0x55, 0x55},
 174         {0x00, 0xff, 0x55, 0xff},
 175         {0x00, 0xff, 0xff, 0x55},
 176         {0x00, 0xff, 0xff, 0xff}
 177 };
 178
 179 /* mouse pointer from dev/syscons/scgfbrndr.c */
 180 static u_char mouse_pointer[16] = {
 181         0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
 182         0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
 183 };
 184
 185 #define FB_WIDTH                640
 186 #define FB_HEIGHT               480
 187 #define FB_DEPTH                16
 188
 189 #define VERSATILE_FONT_HEIGHT   16
 190
 191 static struct video_adapter_softc va_softc;
 192
 193 static int versatilefb_configure(int);
 194 static void versatilefb_update_margins(video_adapter_t *adp);
 195
 196 static void
 197 versatile_fb_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int err)
 198 {
 199         bus_addr_t *addr;
 200
 201         if (err)
 202                 return;
 203
 204         addr = (bus_addr_t*)arg;
 205         *addr = segs[0].ds_addr;
 206 }
 207
 208 static int
 209 versatile_clcdc_probe(device_t dev)
 210 {
 211
 212         if (!ofw_bus_status_okay(dev))
 213                 return (ENXIO);
 214
 215         if (ofw_bus_is_compatible(dev, "arm,pl110")) {
 216                 device_set_desc(dev, "PL110 CLCD controller");
 217                 return (BUS_PROBE_DEFAULT);
 218         }
 219
 220         return (ENXIO);
 221 }
 222
 223 static int
 224 versatile_clcdc_attach(device_t dev)
 225 {
 226         struct versatile_clcdc_softc *sc = device_get_softc(dev);
 227         struct video_adapter_softc *va_sc = &va_softc;
 228         int err, rid;
 229         uint32_t reg;
 230         int clcdid;
 231         int dma_size;
 232
 233         /* Request memory resources */
 234         rid = 0;
 235         sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
 236         if (sc->mem_res == NULL) {
 237                 device_printf(dev, "could not allocate memory resources\n");
 238                 return (ENXIO);
 239         }
 240
 241         err = versatile_scm_reg_read_4(SCM_CLCD, &reg);
 242         if (err) {
 243                 device_printf(dev, "failed to read SCM register\n");
 244                 goto fail;
 245         }
 246         clcdid = (reg >> SCM_CLCD_CLCDID_SHIFT) & SCM_CLCD_CLCDID_MASK;
 247         switch (clcdid) {
 248                 case 31:
 249                         device_printf(dev, "QEMU VGA 640x480\n");
 250                         sc->width = 640;
 251                         sc->height = 480;
 252                         break;
 253                 default:
 254                         device_printf(dev, "Unsupported: %d\n", clcdid);
 255                         goto fail;
 256         }
 257
 258         reg &= ~SCM_CLCD_LCD_MODE_MASK;
 259         reg |= CLCD_MODE_RGB565;
 260         sc->mode = CLCD_MODE_RGB565;
 261         versatile_scm_reg_write_4(SCM_CLCD, reg);
 262         dma_size = sc->width*sc->height*2;
 263
 264         /*
 265          * Power on LCD
 266          */
 267         reg |= SCM_CLCD_PWR3V5VSWITCH | SCM_CLCD_NLCDIOON;
 268         versatile_scm_reg_write_4(SCM_CLCD, reg);
 269
 270         /*
 271          * XXX: hardcoded timing for VGA. For other modes/panels
 272          * we need to keep table of timing register values
 273          */
 274         /*
 275          * XXX: set SYS_OSC1
 276          */
 277         versatile_clcdc_write_4(sc, CLCDC_TIMING0, 0x3F1F3F9C);
 278         versatile_clcdc_write_4(sc, CLCDC_TIMING1, 0x090B61DF);
 279         versatile_clcdc_write_4(sc, CLCDC_TIMING2, 0x067F1800);
 280         /* XXX: timing 3? */
 281
 282         /*
 283          * Now allocate framebuffer memory
 284          */
 285         err = bus_dma_tag_create(
 286             bus_get_dma_tag(dev),
 287             4, 0,               /* alignment, boundary */
 288             BUS_SPACE_MAXADDR_32BIT,    /* lowaddr */
 289             BUS_SPACE_MAXADDR,          /* highaddr */
 290             NULL, NULL,                 /* filter, filterarg */
 291             dma_size, 1,                /* maxsize, nsegments */
 292             dma_size, 0,                /* maxsegsize, flags */
 293             NULL, NULL,                 /* lockfunc, lockarg */
 294             &sc->dma_tag);
 295
 296         err = bus_dmamem_alloc(sc->dma_tag, (void **)&sc->fb_base,
 297             0, &sc->dma_map);
 298         if (err) {
 299                 device_printf(dev, "cannot allocate framebuffer\n");
 300                 goto fail;
 301         }
 302
 303         err = bus_dmamap_load(sc->dma_tag, sc->dma_map, sc->fb_base,
 304             dma_size, versatile_fb_dmamap_cb, &sc->fb_phys, BUS_DMA_NOWAIT);
 305
 306         if (err) {
 307                 device_printf(dev, "cannot load DMA map\n");
 308                 goto fail;
 309         }
 310
 311         /* Make sure it's blank */
 312         memset(sc->fb_base, 0x00, dma_size);
 313
 314         versatile_clcdc_write_4(sc, CLCDC_UPBASE, sc->fb_phys);
 315
 316         err = (sc_attach_unit(device_get_unit(dev),
 317             device_get_flags(dev) | SC_AUTODETECT_KBD));
 318
 319         if (err) {
 320                 device_printf(dev, "failed to attach syscons\n");
 321                 goto fail;
 322         }
 323
 324         /*
 325          * XXX: hardcoded for VGA
 326          */
 327         reg = CONTROL_VCOMP_BP | CONTROL_TFT | CONTROL_BGR | CONTROL_EN;
 328         reg |= CONTROL_BPP16;
 329         versatile_clcdc_write_4(sc, CLCDC_CONTROL, reg);
 330         DELAY(20);
 331         reg |= CONTROL_PWR;
 332         versatile_clcdc_write_4(sc, CLCDC_CONTROL, reg);
 333
 334         va_sc->fb_addr = (vm_offset_t)sc->fb_base;
 335         va_sc->fb_size = dma_size;
 336         va_sc->width = sc->width;
 337         va_sc->height = sc->height;
 338         va_sc->depth = 16;
 339         va_sc->stride = sc->width * 2;
 340         versatilefb_update_margins(&va_sc->va);
 341
 342         return (0);
 343
 344 fail:
 345         if (sc->fb_base)
 346                 bus_dmamem_free(sc->dma_tag, sc->fb_base, sc->dma_map);
 347         if (sc->dma_tag)
 348                 bus_dma_tag_destroy(sc->dma_tag);
 349         return (err);
 350 }
 351
 352 static device_method_t versatile_clcdc_methods[] = {
 353         DEVMETHOD(device_probe,         versatile_clcdc_probe),
 354         DEVMETHOD(device_attach,        versatile_clcdc_attach),
 355
 356         DEVMETHOD_END
 357 };
 358
 359 static driver_t versatile_clcdc_driver = {
 360         "clcdc",
 361         versatile_clcdc_methods,
 362         sizeof(struct versatile_clcdc_softc),
 363 };
 364
 365 static devclass_t versatile_clcdc_devclass;
 366
 367 DRIVER_MODULE(versatile_clcdc, simplebus, versatile_clcdc_driver, versatile_clcdc_devclass, 0, 0);
 368
 369 /*
 370  * Video driver routines and glue.
 371  */
 372 static vi_probe_t               versatilefb_probe;
 373 static vi_init_t                versatilefb_init;
 374 static vi_get_info_t            versatilefb_get_info;
 375 static vi_query_mode_t          versatilefb_query_mode;
 376 static vi_set_mode_t            versatilefb_set_mode;
 377 static vi_save_font_t           versatilefb_save_font;
 378 static vi_load_font_t           versatilefb_load_font;
 379 static vi_show_font_t           versatilefb_show_font;
 380 static vi_save_palette_t        versatilefb_save_palette;
 381 static vi_load_palette_t        versatilefb_load_palette;
 382 static vi_set_border_t          versatilefb_set_border;
 383 static vi_save_state_t          versatilefb_save_state;
 384 static vi_load_state_t          versatilefb_load_state;
 385 static vi_set_win_org_t         versatilefb_set_win_org;
 386 static vi_read_hw_cursor_t      versatilefb_read_hw_cursor;
 387 static vi_set_hw_cursor_t       versatilefb_set_hw_cursor;
 388 static vi_set_hw_cursor_shape_t versatilefb_set_hw_cursor_shape;
 389 static vi_blank_display_t       versatilefb_blank_display;
 390 static vi_mmap_t                versatilefb_mmap;
 391 static vi_ioctl_t               versatilefb_ioctl;
 392 static vi_clear_t               versatilefb_clear;
 393 static vi_fill_rect_t           versatilefb_fill_rect;
 394 static vi_bitblt_t              versatilefb_bitblt;
 395 static vi_diag_t                versatilefb_diag;
 396 static vi_save_cursor_palette_t versatilefb_save_cursor_palette;
 397 static vi_load_cursor_palette_t versatilefb_load_cursor_palette;
 398 static vi_copy_t                versatilefb_copy;
 399 static vi_putp_t                versatilefb_putp;
 400 static vi_putc_t                versatilefb_putc;
 401 static vi_puts_t                versatilefb_puts;
 402 static vi_putm_t                versatilefb_putm;
 403
 404 static video_switch_t versatilefbvidsw = {
 405         .probe                  = versatilefb_probe,
 406         .init                   = versatilefb_init,
 407         .get_info               = versatilefb_get_info,
 408         .query_mode             = versatilefb_query_mode,
 409         .set_mode               = versatilefb_set_mode,
 410         .save_font              = versatilefb_save_font,
 411         .load_font              = versatilefb_load_font,
 412         .show_font              = versatilefb_show_font,
 413         .save_palette           = versatilefb_save_palette,
 414         .load_palette           = versatilefb_load_palette,
 415         .set_border             = versatilefb_set_border,
 416         .save_state             = versatilefb_save_state,
 417         .load_state             = versatilefb_load_state,
 418         .set_win_org            = versatilefb_set_win_org,
 419         .read_hw_cursor         = versatilefb_read_hw_cursor,
 420         .set_hw_cursor          = versatilefb_set_hw_cursor,
 421         .set_hw_cursor_shape    = versatilefb_set_hw_cursor_shape,
 422         .blank_display          = versatilefb_blank_display,
 423         .mmap                   = versatilefb_mmap,
 424         .ioctl                  = versatilefb_ioctl,
 425         .clear                  = versatilefb_clear,
 426         .fill_rect              = versatilefb_fill_rect,
 427         .bitblt                 = versatilefb_bitblt,
 428         .diag                   = versatilefb_diag,
 429         .save_cursor_palette    = versatilefb_save_cursor_palette,
 430         .load_cursor_palette    = versatilefb_load_cursor_palette,
 431         .copy                   = versatilefb_copy,
 432         .putp                   = versatilefb_putp,
 433         .putc                   = versatilefb_putc,
 434         .puts                   = versatilefb_puts,
 435         .putm                   = versatilefb_putm,
 436 };
 437
 438 VIDEO_DRIVER(versatilefb, versatilefbvidsw, versatilefb_configure);
 439
 440 static vr_init_t clcdr_init;
 441 static vr_clear_t clcdr_clear;
 442 static vr_draw_border_t clcdr_draw_border;
 443 static vr_draw_t clcdr_draw;
 444 static vr_set_cursor_t clcdr_set_cursor;
 445 static vr_draw_cursor_t clcdr_draw_cursor;
 446 static vr_blink_cursor_t clcdr_blink_cursor;
 447 static vr_set_mouse_t clcdr_set_mouse;
 448 static vr_draw_mouse_t clcdr_draw_mouse;
 449
 450 /*
 451  * We use our own renderer; this is because we must emulate a hardware
 452  * cursor.
 453  */
 454 static sc_rndr_sw_t clcdrend = {
 455         clcdr_init,
 456         clcdr_clear,
 457         clcdr_draw_border,
 458         clcdr_draw,
 459         clcdr_set_cursor,
 460         clcdr_draw_cursor,
 461         clcdr_blink_cursor,
 462         clcdr_set_mouse,
 463         clcdr_draw_mouse
 464 };
 465
 466 RENDERER(versatilefb, 0, clcdrend, gfb_set);
 467 RENDERER_MODULE(versatilefb, gfb_set);
 468
 469 static void
 470 clcdr_init(scr_stat* scp)
 471 {
 472 }
 473
 474 static void
 475 clcdr_clear(scr_stat* scp, int c, int attr)
 476 {
 477 }
 478
 479 static void
 480 clcdr_draw_border(scr_stat* scp, int color)
 481 {
 482 }
 483
 484 static void
 485 clcdr_draw(scr_stat* scp, int from, int count, int flip)
 486 {
 487         video_adapter_t* adp = scp->sc->adp;
 488         int i, c, a;
 489
 490         if (!flip) {
 491                 /* Normal printing */
 492                 vidd_puts(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
 493         } else {
 494                 /* This is for selections and such: invert the color attribute */
 495                 for (i = count; i-- > 0; ++from) {
 496                         c = sc_vtb_getc(&scp->vtb, from);
 497                         a = sc_vtb_geta(&scp->vtb, from) >> 8;
 498                         vidd_putc(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
 499                 }
 500         }
 501 }
 502
 503 static void
 504 clcdr_set_cursor(scr_stat* scp, int base, int height, int blink)
 505 {
 506 }
 507
 508 static void
 509 clcdr_draw_cursor(scr_stat* scp, int off, int blink, int on, int flip)
 510 {
 511         video_adapter_t* adp = scp->sc->adp;
 512         struct video_adapter_softc *sc;
 513         int row, col;
 514         uint8_t *addr;
 515         int i,j;
 516
 517         sc = (struct video_adapter_softc *)adp;
 518
 519         if (scp->curs_attr.height <= 0)
 520                 return;
 521
 522         if (sc->fb_addr == 0)
 523                 return;
 524
 525         if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
 526                 return;
 527
 528         /* calculate the coordinates in the video buffer */
 529         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
 530         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
 531
 532         addr = (uint8_t *)sc->fb_addr
 533             + (row + sc->ymargin)*(sc->stride)
 534             + (sc->depth/8) * (col + sc->xmargin);
 535
 536         /* our cursor consists of simply inverting the char under it */
 537         for (i = 0; i < adp->va_info.vi_cheight; i++) {
 538                 for (j = 0; j < adp->va_info.vi_cwidth; j++) {
 539
 540                         addr[2*j] ^= 0xff;
 541                         addr[2*j + 1] ^= 0xff;
 542                 }
 543
 544                 addr += sc->stride;
 545         }
 546 }
 547
 548 static void
 549 clcdr_blink_cursor(scr_stat* scp, int at, int flip)
 550 {
 551 }
 552
 553 static void
 554 clcdr_set_mouse(scr_stat* scp)
 555 {
 556 }
 557
 558 static void
 559 clcdr_draw_mouse(scr_stat* scp, int x, int y, int on)
 560 {
 561         vidd_putm(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
 562
 563 }
 564
 565 static uint16_t versatilefb_static_window[ROW*COL];
 566 extern u_char dflt_font_16[];
 567
 568 /*
 569  * Update videoadapter settings after changing resolution
 570  */
 571 static void
 572 versatilefb_update_margins(video_adapter_t *adp)
 573 {
 574         struct video_adapter_softc *sc;
 575         video_info_t *vi;
 576
 577         sc = (struct video_adapter_softc *)adp;
 578         vi = &adp->va_info;
 579
 580         sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
 581         sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
 582 }
 583
 584 static int
 585 versatilefb_configure(int flags)
 586 {
 587         struct video_adapter_softc *va_sc;
 588
 589         va_sc = &va_softc;
 590
 591         if (va_sc->initialized)
 592                 return (0);
 593
 594         va_sc->width = FB_WIDTH;
 595         va_sc->height = FB_HEIGHT;
 596         va_sc->depth = FB_DEPTH;
 597
 598         versatilefb_init(0, &va_sc->va, 0);
 599
 600         va_sc->initialized = 1;
 601
 602         return (0);
 603 }
 604
 605 static int
 606 versatilefb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
 607 {
 608
 609         return (0);
 610 }
 611
 612 static int
 613 versatilefb_init(int unit, video_adapter_t *adp, int flags)
 614 {
 615         struct video_adapter_softc *sc;
 616         video_info_t *vi;
 617
 618         sc = (struct video_adapter_softc *)adp;
 619         vi = &adp->va_info;
 620
 621         vid_init_struct(adp, "versatilefb", -1, unit);
 622
 623         sc->font = dflt_font_16;
 624         vi->vi_cheight = VERSATILE_FONT_HEIGHT;
 625         vi->vi_cwidth = 8;
 626
 627         vi->vi_width = sc->width/8;
 628         vi->vi_height = sc->height/vi->vi_cheight;
 629
 630         /*
 631          * Clamp width/height to syscons maximums
 632          */
 633         if (vi->vi_width > COL)
 634                 vi->vi_width = COL;
 635         if (vi->vi_height > ROW)
 636                 vi->vi_height = ROW;
 637
 638         sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
 639         sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
 640
 641         adp->va_window = (vm_offset_t) versatilefb_static_window;
 642         adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
 643
 644         vid_register(&sc->va);
 645
 646         return (0);
 647 }
 648
 649 static int
 650 versatilefb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
 651 {
 652         bcopy(&adp->va_info, info, sizeof(*info));
 653         return (0);
 654 }
 655
 656 static int
 657 versatilefb_query_mode(video_adapter_t *adp, video_info_t *info)
 658 {
 659         return (0);
 660 }
 661
 662 static int
 663 versatilefb_set_mode(video_adapter_t *adp, int mode)
 664 {
 665         return (0);
 666 }
 667
 668 static int
 669 versatilefb_save_font(video_adapter_t *adp, int page, int size, int width,
 670     u_char *data, int c, int count)
 671 {
 672         return (0);
 673 }
 674
 675 static int
 676 versatilefb_load_font(video_adapter_t *adp, int page, int size, int width,
 677     u_char *data, int c, int count)
 678 {
 679         struct video_adapter_softc *sc = (struct video_adapter_softc *)adp;
 680
 681         sc->font = data;
 682
 683         return (0);
 684 }
 685
 686 static int
 687 versatilefb_show_font(video_adapter_t *adp, int page)
 688 {
 689         return (0);
 690 }
 691
 692 static int
 693 versatilefb_save_palette(video_adapter_t *adp, u_char *palette)
 694 {
 695         return (0);
 696 }
 697
 698 static int
 699 versatilefb_load_palette(video_adapter_t *adp, u_char *palette)
 700 {
 701         return (0);
 702 }
 703
 704 static int
 705 versatilefb_set_border(video_adapter_t *adp, int border)
 706 {
 707         return (versatilefb_blank_display(adp, border));
 708 }
 709
 710 static int
 711 versatilefb_save_state(video_adapter_t *adp, void *p, size_t size)
 712 {
 713         return (0);
 714 }
 715
 716 static int
 717 versatilefb_load_state(video_adapter_t *adp, void *p)
 718 {
 719         return (0);
 720 }
 721
 722 static int
 723 versatilefb_set_win_org(video_adapter_t *adp, off_t offset)
 724 {
 725         return (0);
 726 }
 727
 728 static int
 729 versatilefb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
 730 {
 731         *col = *row = 0;
 732
 733         return (0);
 734 }
 735
 736 static int
 737 versatilefb_set_hw_cursor(video_adapter_t *adp, int col, int row)
 738 {
 739
 740         return (0);
 741 }
 742
 743 static int
 744 versatilefb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
 745     int celsize, int blink)
 746 {
 747         return (0);
 748 }
 749
 750 static int
 751 versatilefb_blank_display(video_adapter_t *adp, int mode)
 752 {
 753
 754         struct video_adapter_softc *sc;
 755
 756         sc = (struct video_adapter_softc *)adp;
 757         if (sc && sc->fb_addr)
 758                 memset((void*)sc->fb_addr, 0, sc->fb_size);
 759
 760         return (0);
 761 }
 762
 763 static int
 764 versatilefb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
 765     int prot, vm_memattr_t *memattr)
 766 {
 767         struct video_adapter_softc *sc;
 768
 769         sc = (struct video_adapter_softc *)adp;
 770
 771         /*
 772          * This might be a legacy VGA mem request: if so, just point it at the
 773          * framebuffer, since it shouldn't be touched
 774          */
 775         if (offset < sc->stride*sc->height) {
 776                 *paddr = sc->fb_addr + offset;
 777                 return (0);
 778         }
 779
 780         return (EINVAL);
 781 }
 782
 783 static int
 784 versatilefb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
 785 {
 786
 787         return (0);
 788 }
 789
 790 static int
 791 versatilefb_clear(video_adapter_t *adp)
 792 {
 793
 794         return (versatilefb_blank_display(adp, 0));
 795 }
 796
 797 static int
 798 versatilefb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
 799 {
 800
 801         return (0);
 802 }
 803
 804 static int
 805 versatilefb_bitblt(video_adapter_t *adp, ...)
 806 {
 807
 808         return (0);
 809 }
 810
 811 static int
 812 versatilefb_diag(video_adapter_t *adp, int level)
 813 {
 814
 815         return (0);
 816 }
 817
 818 static int
 819 versatilefb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
 820 {
 821
 822         return (0);
 823 }
 824
 825 static int
 826 versatilefb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
 827 {
 828
 829         return (0);
 830 }
 831
 832 static int
 833 versatilefb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
 834 {
 835
 836         return (0);
 837 }
 838
 839 static int
 840 versatilefb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
 841     int size, int bpp, int bit_ltor, int byte_ltor)
 842 {
 843
 844         return (0);
 845 }
 846
 847 static int
 848 versatilefb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
 849 {
 850         struct video_adapter_softc *sc;
 851         int row;
 852         int col;
 853         int i, j, k;
 854         uint8_t *addr;
 855         u_char *p;
 856         uint8_t fg, bg, color;
 857         uint16_t rgb;
 858
 859         sc = (struct video_adapter_softc *)adp;
 860
 861         if (sc->fb_addr == 0)
 862                 return (0);
 863
 864         if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
 865                 return (0);
 866
 867         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
 868         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
 869         p = sc->font + c*VERSATILE_FONT_HEIGHT;
 870         addr = (uint8_t *)sc->fb_addr
 871             + (row + sc->ymargin)*(sc->stride)
 872             + (sc->depth/8) * (col + sc->xmargin);
 873
 874         fg = a & 0xf ;
 875         bg = (a >> 4) & 0xf;
 876
 877         for (i = 0; i < VERSATILE_FONT_HEIGHT; i++) {
 878                 for (j = 0, k = 7; j < 8; j++, k--) {
 879                         if ((p[i] & (1 << k)) == 0)
 880                                 color = bg;
 881                         else
 882                                 color = fg;
 883
 884                         switch (sc->depth) {
 885                         case 16:
 886                                 rgb = (versatilefb_palette[color].r >> 3) << 11;
 887                                 rgb |= (versatilefb_palette[color].g >> 2) << 5;
 888                                 rgb |= (versatilefb_palette[color].b >> 3);
 889                                 addr[2*j] = rgb & 0xff;
 890                                 addr[2*j + 1] = (rgb >> 8) & 0xff;
 891                         default:
 892                                 /* Not supported yet */
 893                                 break;
 894                         }
 895                 }
 896
 897                 addr += (sc->stride);
 898         }
 899
 900         return (0);
 901 }
 902
 903 static int
 904 versatilefb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
 905 {
 906         int i;
 907
 908         for (i = 0; i < len; i++)
 909                 versatilefb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
 910
 911         return (0);
 912 }
 913
 914 static int
 915 versatilefb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
 916     uint32_t pixel_mask, int size, int width)
 917 {
 918
 919         return (0);
 920 }
 921
 922 /*
 923  * Define a stub keyboard driver in case one hasn't been
 924  * compiled into the kernel
 925  */
 926 #include <sys/kbio.h>
 927 #include <dev/kbd/kbdreg.h>
 928
 929 static int dummy_kbd_configure(int flags);
 930
 931 keyboard_switch_t bcmdummysw;
 932
 933 static int
 934 dummy_kbd_configure(int flags)
 935 {
 936
 937         return (0);
 938 }
 939 KEYBOARD_DRIVER(bcmdummy, bcmdummysw, dummy_kbd_configure);