sys/arm/versatile/versatile_clcd.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2012-2017 Oleksandr Tymoshenko <gonzo@freebsd.org>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __FBSDID("$FreeBSD$");
  31
  32 #include <sys/param.h>
  33 #include <sys/systm.h>
  34 #include <sys/bus.h>
  35 #include <sys/kernel.h>
  36 #include <sys/module.h>
  37 #include <sys/malloc.h>
  38 #include <sys/rman.h>
  39 #include <sys/fbio.h>
  40 #include <sys/consio.h>
  41 #include <sys/kdb.h>
  42
  43 #include <machine/bus.h>
  44 #include <machine/cpu.h>
  45 #include <machine/intr.h>
  46
  47 #include <dev/ofw/openfirm.h>
  48 #include <dev/ofw/ofw_bus.h>
  49 #include <dev/ofw/ofw_bus_subr.h>
  50
  51 #include <dev/fb/fbreg.h>
  52 #include <dev/syscons/syscons.h>
  53
  54 #include <arm/versatile/versatile_scm.h>
  55
  56 #include <machine/bus.h>
  57
  58 #define PL110_VENDOR_ARM926PXP  1
  59
  60 #define CLCD_MODE_RGB888        0x0
  61 #define CLCD_MODE_RGB555        0x01
  62 #define CLCD_MODE_RBG565        0x02
  63 #define CLCD_MODE_RGB565        0x03
  64
  65 #define CLCDC_TIMING0           0x00
  66 #define CLCDC_TIMING1           0x04
  67 #define CLCDC_TIMING2           0x08
  68 #define CLCDC_TIMING3           0x0C
  69 #define CLCDC_TIMING3           0x0C
  70 #define CLCDC_UPBASE            0x10
  71 #define CLCDC_LPBASE            0x14
  72 #ifdef PL110_VENDOR_ARM926PXP
  73 #define CLCDC_CONTROL           0x18
  74 #define CLCDC_IMSC              0x1C
  75 #else
  76 #define CLCDC_IMSC              0x18
  77 #define CLCDC_CONTROL           0x1C
  78 #endif
  79 #define         CONTROL_WATERMARK       (1 << 16)
  80 #define         CONTROL_VCOMP_VS        (0 << 12)
  81 #define         CONTROL_VCOMP_BP        (1 << 12)
  82 #define         CONTROL_VCOMP_SAV       (2 << 12)
  83 #define         CONTROL_VCOMP_FP        (3 << 12)
  84 #define         CONTROL_PWR             (1 << 11)
  85 #define         CONTROL_BEPO            (1 << 10)
  86 #define         CONTROL_BEBO            (1 << 9)
  87 #define         CONTROL_BGR             (1 << 8)
  88 #define         CONTROL_DUAL            (1 << 7)
  89 #define         CONTROL_MONO8           (1 << 6)
  90 #define         CONTROL_TFT             (1 << 5)
  91 #define         CONTROL_BW              (1 << 4)
  92 #define         CONTROL_BPP1            (0x00 << 1)
  93 #define         CONTROL_BPP2            (0x01 << 1)
  94 #define         CONTROL_BPP4            (0x02 << 1)
  95 #define         CONTROL_BPP8            (0x03 << 1)
  96 #define         CONTROL_BPP16           (0x04 << 1)
  97 #define         CONTROL_BPP24           (0x05 << 1)
  98 #define         CONTROL_EN      (1 << 0)
  99 #define CLCDC_RIS               0x20
 100 #define CLCDC_MIS               0x24
 101 #define         INTR_MBERR              (1 << 4)
 102 #define         INTR_VCOMP              (1 << 3)
 103 #define         INTR_LNB                (1 << 2)
 104 #define         INTR_FUF                (1 << 1)
 105 #define CLCDC_ICR               0x28
 106
 107 #ifdef DEBUG
 108 #define dprintf(fmt, args...) do { printf("%s(): ", __func__);   \
 109     printf(fmt,##args); } while (0)
 110 #else
 111 #define dprintf(fmt, args...)
 112 #endif
 113
 114 #define versatile_clcdc_read_4(sc, reg) \
 115         bus_read_4((sc)->mem_res, (reg))
 116 #define versatile_clcdc_write_4(sc, reg, val)   \
 117         bus_write_4((sc)->mem_res, (reg), (val))
 118
 119 struct versatile_clcdc_softc {
 120         struct resource*        mem_res;
 121
 122         struct mtx              mtx;
 123
 124         int                     width;
 125         int                     height;
 126         int                     mode;
 127
 128         bus_dma_tag_t           dma_tag;
 129         bus_dmamap_t            dma_map;
 130         bus_addr_t              fb_phys;
 131         uint8_t                 *fb_base;
 132
 133 };
 134
 135 struct video_adapter_softc {
 136         /* Videoadpater part */
 137         video_adapter_t va;
 138         int             console;
 139
 140         intptr_t        fb_addr;
 141         unsigned int    fb_size;
 142
 143         unsigned int    height;
 144         unsigned int    width;
 145         unsigned int    depth;
 146         unsigned int    stride;
 147
 148         unsigned int    xmargin;
 149         unsigned int    ymargin;
 150
 151         unsigned char   *font;
 152         int             initialized;
 153 };
 154
 155 struct argb {
 156         uint8_t         a;
 157         uint8_t         r;
 158         uint8_t         g;
 159         uint8_t         b;
 160 };
 161
 162 static struct argb versatilefb_palette[16] = {
 163         {0x00, 0x00, 0x00, 0x00},
 164         {0x00, 0x00, 0x00, 0xaa},
 165         {0x00, 0x00, 0xaa, 0x00},
 166         {0x00, 0x00, 0xaa, 0xaa},
 167         {0x00, 0xaa, 0x00, 0x00},
 168         {0x00, 0xaa, 0x00, 0xaa},
 169         {0x00, 0xaa, 0x55, 0x00},
 170         {0x00, 0xaa, 0xaa, 0xaa},
 171         {0x00, 0x55, 0x55, 0x55},
 172         {0x00, 0x55, 0x55, 0xff},
 173         {0x00, 0x55, 0xff, 0x55},
 174         {0x00, 0x55, 0xff, 0xff},
 175         {0x00, 0xff, 0x55, 0x55},
 176         {0x00, 0xff, 0x55, 0xff},
 177         {0x00, 0xff, 0xff, 0x55},
 178         {0x00, 0xff, 0xff, 0xff}
 179 };
 180
 181 /* mouse pointer from dev/syscons/scgfbrndr.c */
 182 static u_char mouse_pointer[16] = {
 183         0x00, 0x40, 0x60, 0x70, 0x78, 0x7c, 0x7e, 0x68,
 184         0x0c, 0x0c, 0x06, 0x06, 0x00, 0x00, 0x00, 0x00
 185 };
 186
 187 #define FB_WIDTH                640
 188 #define FB_HEIGHT               480
 189 #define FB_DEPTH                16
 190
 191 #define VERSATILE_FONT_HEIGHT   16
 192
 193 static struct video_adapter_softc va_softc;
 194
 195 static int versatilefb_configure(int);
 196 static void versatilefb_update_margins(video_adapter_t *adp);
 197
 198 static void
 199 versatile_fb_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nseg, int err)
 200 {
 201         bus_addr_t *addr;
 202
 203         if (err)
 204                 return;
 205
 206         addr = (bus_addr_t*)arg;
 207         *addr = segs[0].ds_addr;
 208 }
 209
 210 static int
 211 versatile_clcdc_probe(device_t dev)
 212 {
 213
 214         if (!ofw_bus_status_okay(dev))
 215                 return (ENXIO);
 216
 217         if (ofw_bus_is_compatible(dev, "arm,pl110")) {
 218                 device_set_desc(dev, "PL110 CLCD controller");
 219                 return (BUS_PROBE_DEFAULT);
 220         }
 221
 222         return (ENXIO);
 223 }
 224
 225 static int
 226 versatile_clcdc_attach(device_t dev)
 227 {
 228         struct versatile_clcdc_softc *sc = device_get_softc(dev);
 229         struct video_adapter_softc *va_sc = &va_softc;
 230         int err, rid;
 231         uint32_t reg;
 232         int clcdid;
 233         int dma_size;
 234
 235         /* Request memory resources */
 236         rid = 0;
 237         sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
 238         if (sc->mem_res == NULL) {
 239                 device_printf(dev, "could not allocate memory resources\n");
 240                 return (ENXIO);
 241         }
 242
 243         err = versatile_scm_reg_read_4(SCM_CLCD, &reg);
 244         if (err) {
 245                 device_printf(dev, "failed to read SCM register\n");
 246                 goto fail;
 247         }
 248         clcdid = (reg >> SCM_CLCD_CLCDID_SHIFT) & SCM_CLCD_CLCDID_MASK;
 249         switch (clcdid) {
 250                 case 31:
 251                         device_printf(dev, "QEMU VGA 640x480\n");
 252                         sc->width = 640;
 253                         sc->height = 480;
 254                         break;
 255                 default:
 256                         device_printf(dev, "Unsupported: %d\n", clcdid);
 257                         goto fail;
 258         }
 259
 260         reg &= ~SCM_CLCD_LCD_MODE_MASK;
 261         reg |= CLCD_MODE_RGB565;
 262         sc->mode = CLCD_MODE_RGB565;
 263         versatile_scm_reg_write_4(SCM_CLCD, reg);
 264         dma_size = sc->width*sc->height*2;
 265
 266         /*
 267          * Power on LCD
 268          */
 269         reg |= SCM_CLCD_PWR3V5VSWITCH | SCM_CLCD_NLCDIOON;
 270         versatile_scm_reg_write_4(SCM_CLCD, reg);
 271
 272         /*
 273          * XXX: hardcoded timing for VGA. For other modes/panels
 274          * we need to keep table of timing register values
 275          */
 276         /*
 277          * XXX: set SYS_OSC1
 278          */
 279         versatile_clcdc_write_4(sc, CLCDC_TIMING0, 0x3F1F3F9C);
 280         versatile_clcdc_write_4(sc, CLCDC_TIMING1, 0x090B61DF);
 281         versatile_clcdc_write_4(sc, CLCDC_TIMING2, 0x067F1800);
 282         /* XXX: timing 3? */
 283
 284         /*
 285          * Now allocate framebuffer memory
 286          */
 287         err = bus_dma_tag_create(
 288             bus_get_dma_tag(dev),
 289             4, 0,               /* alignment, boundary */
 290             BUS_SPACE_MAXADDR_32BIT,    /* lowaddr */
 291             BUS_SPACE_MAXADDR,          /* highaddr */
 292             NULL, NULL,                 /* filter, filterarg */
 293             dma_size, 1,                /* maxsize, nsegments */
 294             dma_size, 0,                /* maxsegsize, flags */
 295             NULL, NULL,                 /* lockfunc, lockarg */
 296             &sc->dma_tag);
 297
 298         err = bus_dmamem_alloc(sc->dma_tag, (void **)&sc->fb_base,
 299             0, &sc->dma_map);
 300         if (err) {
 301                 device_printf(dev, "cannot allocate framebuffer\n");
 302                 goto fail;
 303         }
 304
 305         err = bus_dmamap_load(sc->dma_tag, sc->dma_map, sc->fb_base,
 306             dma_size, versatile_fb_dmamap_cb, &sc->fb_phys, BUS_DMA_NOWAIT);
 307
 308         if (err) {
 309                 device_printf(dev, "cannot load DMA map\n");
 310                 goto fail;
 311         }
 312
 313         /* Make sure it's blank */
 314         memset(sc->fb_base, 0x00, dma_size);
 315
 316         versatile_clcdc_write_4(sc, CLCDC_UPBASE, sc->fb_phys);
 317
 318         err = (sc_attach_unit(device_get_unit(dev),
 319             device_get_flags(dev) | SC_AUTODETECT_KBD));
 320
 321         if (err) {
 322                 device_printf(dev, "failed to attach syscons\n");
 323                 goto fail;
 324         }
 325
 326         /*
 327          * XXX: hardcoded for VGA
 328          */
 329         reg = CONTROL_VCOMP_BP | CONTROL_TFT | CONTROL_BGR | CONTROL_EN;
 330         reg |= CONTROL_BPP16;
 331         versatile_clcdc_write_4(sc, CLCDC_CONTROL, reg);
 332         DELAY(20);
 333         reg |= CONTROL_PWR;
 334         versatile_clcdc_write_4(sc, CLCDC_CONTROL, reg);
 335
 336         va_sc->fb_addr = (vm_offset_t)sc->fb_base;
 337         va_sc->fb_size = dma_size;
 338         va_sc->width = sc->width;
 339         va_sc->height = sc->height;
 340         va_sc->depth = 16;
 341         va_sc->stride = sc->width * 2;
 342         versatilefb_update_margins(&va_sc->va);
 343
 344         return (0);
 345
 346 fail:
 347         if (sc->fb_base)
 348                 bus_dmamem_free(sc->dma_tag, sc->fb_base, sc->dma_map);
 349         if (sc->dma_tag)
 350                 bus_dma_tag_destroy(sc->dma_tag);
 351         return (err);
 352 }
 353
 354 static device_method_t versatile_clcdc_methods[] = {
 355         DEVMETHOD(device_probe,         versatile_clcdc_probe),
 356         DEVMETHOD(device_attach,        versatile_clcdc_attach),
 357
 358         DEVMETHOD_END
 359 };
 360
 361 static driver_t versatile_clcdc_driver = {
 362         "clcdc",
 363         versatile_clcdc_methods,
 364         sizeof(struct versatile_clcdc_softc),
 365 };
 366
 367 static devclass_t versatile_clcdc_devclass;
 368
 369 DRIVER_MODULE(versatile_clcdc, simplebus, versatile_clcdc_driver, versatile_clcdc_devclass, 0, 0);
 370
 371 /*
 372  * Video driver routines and glue.
 373  */
 374 static vi_probe_t               versatilefb_probe;
 375 static vi_init_t                versatilefb_init;
 376 static vi_get_info_t            versatilefb_get_info;
 377 static vi_query_mode_t          versatilefb_query_mode;
 378 static vi_set_mode_t            versatilefb_set_mode;
 379 static vi_save_font_t           versatilefb_save_font;
 380 static vi_load_font_t           versatilefb_load_font;
 381 static vi_show_font_t           versatilefb_show_font;
 382 static vi_save_palette_t        versatilefb_save_palette;
 383 static vi_load_palette_t        versatilefb_load_palette;
 384 static vi_set_border_t          versatilefb_set_border;
 385 static vi_save_state_t          versatilefb_save_state;
 386 static vi_load_state_t          versatilefb_load_state;
 387 static vi_set_win_org_t         versatilefb_set_win_org;
 388 static vi_read_hw_cursor_t      versatilefb_read_hw_cursor;
 389 static vi_set_hw_cursor_t       versatilefb_set_hw_cursor;
 390 static vi_set_hw_cursor_shape_t versatilefb_set_hw_cursor_shape;
 391 static vi_blank_display_t       versatilefb_blank_display;
 392 static vi_mmap_t                versatilefb_mmap;
 393 static vi_ioctl_t               versatilefb_ioctl;
 394 static vi_clear_t               versatilefb_clear;
 395 static vi_fill_rect_t           versatilefb_fill_rect;
 396 static vi_bitblt_t              versatilefb_bitblt;
 397 static vi_diag_t                versatilefb_diag;
 398 static vi_save_cursor_palette_t versatilefb_save_cursor_palette;
 399 static vi_load_cursor_palette_t versatilefb_load_cursor_palette;
 400 static vi_copy_t                versatilefb_copy;
 401 static vi_putp_t                versatilefb_putp;
 402 static vi_putc_t                versatilefb_putc;
 403 static vi_puts_t                versatilefb_puts;
 404 static vi_putm_t                versatilefb_putm;
 405
 406 static video_switch_t versatilefbvidsw = {
 407         .probe                  = versatilefb_probe,
 408         .init                   = versatilefb_init,
 409         .get_info               = versatilefb_get_info,
 410         .query_mode             = versatilefb_query_mode,
 411         .set_mode               = versatilefb_set_mode,
 412         .save_font              = versatilefb_save_font,
 413         .load_font              = versatilefb_load_font,
 414         .show_font              = versatilefb_show_font,
 415         .save_palette           = versatilefb_save_palette,
 416         .load_palette           = versatilefb_load_palette,
 417         .set_border             = versatilefb_set_border,
 418         .save_state             = versatilefb_save_state,
 419         .load_state             = versatilefb_load_state,
 420         .set_win_org            = versatilefb_set_win_org,
 421         .read_hw_cursor         = versatilefb_read_hw_cursor,
 422         .set_hw_cursor          = versatilefb_set_hw_cursor,
 423         .set_hw_cursor_shape    = versatilefb_set_hw_cursor_shape,
 424         .blank_display          = versatilefb_blank_display,
 425         .mmap                   = versatilefb_mmap,
 426         .ioctl                  = versatilefb_ioctl,
 427         .clear                  = versatilefb_clear,
 428         .fill_rect              = versatilefb_fill_rect,
 429         .bitblt                 = versatilefb_bitblt,
 430         .diag                   = versatilefb_diag,
 431         .save_cursor_palette    = versatilefb_save_cursor_palette,
 432         .load_cursor_palette    = versatilefb_load_cursor_palette,
 433         .copy                   = versatilefb_copy,
 434         .putp                   = versatilefb_putp,
 435         .putc                   = versatilefb_putc,
 436         .puts                   = versatilefb_puts,
 437         .putm                   = versatilefb_putm,
 438 };
 439
 440 VIDEO_DRIVER(versatilefb, versatilefbvidsw, versatilefb_configure);
 441
 442 static vr_init_t clcdr_init;
 443 static vr_clear_t clcdr_clear;
 444 static vr_draw_border_t clcdr_draw_border;
 445 static vr_draw_t clcdr_draw;
 446 static vr_set_cursor_t clcdr_set_cursor;
 447 static vr_draw_cursor_t clcdr_draw_cursor;
 448 static vr_blink_cursor_t clcdr_blink_cursor;
 449 static vr_set_mouse_t clcdr_set_mouse;
 450 static vr_draw_mouse_t clcdr_draw_mouse;
 451
 452 /*
 453  * We use our own renderer; this is because we must emulate a hardware
 454  * cursor.
 455  */
 456 static sc_rndr_sw_t clcdrend = {
 457         clcdr_init,
 458         clcdr_clear,
 459         clcdr_draw_border,
 460         clcdr_draw,
 461         clcdr_set_cursor,
 462         clcdr_draw_cursor,
 463         clcdr_blink_cursor,
 464         clcdr_set_mouse,
 465         clcdr_draw_mouse
 466 };
 467
 468 RENDERER(versatilefb, 0, clcdrend, gfb_set);
 469 RENDERER_MODULE(versatilefb, gfb_set);
 470
 471 static void
 472 clcdr_init(scr_stat* scp)
 473 {
 474 }
 475
 476 static void
 477 clcdr_clear(scr_stat* scp, int c, int attr)
 478 {
 479 }
 480
 481 static void
 482 clcdr_draw_border(scr_stat* scp, int color)
 483 {
 484 }
 485
 486 static void
 487 clcdr_draw(scr_stat* scp, int from, int count, int flip)
 488 {
 489         video_adapter_t* adp = scp->sc->adp;
 490         int i, c, a;
 491
 492         if (!flip) {
 493                 /* Normal printing */
 494                 vidd_puts(adp, from, (uint16_t*)sc_vtb_pointer(&scp->vtb, from), count);
 495         } else {
 496                 /* This is for selections and such: invert the color attribute */
 497                 for (i = count; i-- > 0; ++from) {
 498                         c = sc_vtb_getc(&scp->vtb, from);
 499                         a = sc_vtb_geta(&scp->vtb, from) >> 8;
 500                         vidd_putc(adp, from, c, (a >> 4) | ((a & 0xf) << 4));
 501                 }
 502         }
 503 }
 504
 505 static void
 506 clcdr_set_cursor(scr_stat* scp, int base, int height, int blink)
 507 {
 508 }
 509
 510 static void
 511 clcdr_draw_cursor(scr_stat* scp, int off, int blink, int on, int flip)
 512 {
 513         video_adapter_t* adp = scp->sc->adp;
 514         struct video_adapter_softc *sc;
 515         int row, col;
 516         uint8_t *addr;
 517         int i,j;
 518
 519         sc = (struct video_adapter_softc *)adp;
 520
 521         if (scp->curs_attr.height <= 0)
 522                 return;
 523
 524         if (sc->fb_addr == 0)
 525                 return;
 526
 527         if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
 528                 return;
 529
 530         /* calculate the coordinates in the video buffer */
 531         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
 532         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
 533
 534         addr = (uint8_t *)sc->fb_addr
 535             + (row + sc->ymargin)*(sc->stride)
 536             + (sc->depth/8) * (col + sc->xmargin);
 537
 538         /* our cursor consists of simply inverting the char under it */
 539         for (i = 0; i < adp->va_info.vi_cheight; i++) {
 540                 for (j = 0; j < adp->va_info.vi_cwidth; j++) {
 541                         addr[2*j] ^= 0xff;
 542                         addr[2*j + 1] ^= 0xff;
 543                 }
 544
 545                 addr += sc->stride;
 546         }
 547 }
 548
 549 static void
 550 clcdr_blink_cursor(scr_stat* scp, int at, int flip)
 551 {
 552 }
 553
 554 static void
 555 clcdr_set_mouse(scr_stat* scp)
 556 {
 557 }
 558
 559 static void
 560 clcdr_draw_mouse(scr_stat* scp, int x, int y, int on)
 561 {
 562         vidd_putm(scp->sc->adp, x, y, mouse_pointer, 0xffffffff, 16, 8);
 563
 564 }
 565
 566 static uint16_t versatilefb_static_window[ROW*COL];
 567 extern u_char dflt_font_16[];
 568
 569 /*
 570  * Update videoadapter settings after changing resolution
 571  */
 572 static void
 573 versatilefb_update_margins(video_adapter_t *adp)
 574 {
 575         struct video_adapter_softc *sc;
 576         video_info_t *vi;
 577
 578         sc = (struct video_adapter_softc *)adp;
 579         vi = &adp->va_info;
 580
 581         sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
 582         sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
 583 }
 584
 585 static int
 586 versatilefb_configure(int flags)
 587 {
 588         struct video_adapter_softc *va_sc;
 589
 590         va_sc = &va_softc;
 591
 592         if (va_sc->initialized)
 593                 return (0);
 594
 595         va_sc->width = FB_WIDTH;
 596         va_sc->height = FB_HEIGHT;
 597         va_sc->depth = FB_DEPTH;
 598
 599         versatilefb_init(0, &va_sc->va, 0);
 600
 601         va_sc->initialized = 1;
 602
 603         return (0);
 604 }
 605
 606 static int
 607 versatilefb_probe(int unit, video_adapter_t **adp, void *arg, int flags)
 608 {
 609
 610         return (0);
 611 }
 612
 613 static int
 614 versatilefb_init(int unit, video_adapter_t *adp, int flags)
 615 {
 616         struct video_adapter_softc *sc;
 617         video_info_t *vi;
 618
 619         sc = (struct video_adapter_softc *)adp;
 620         vi = &adp->va_info;
 621
 622         vid_init_struct(adp, "versatilefb", -1, unit);
 623
 624         sc->font = dflt_font_16;
 625         vi->vi_cheight = VERSATILE_FONT_HEIGHT;
 626         vi->vi_cwidth = 8;
 627
 628         vi->vi_width = sc->width/8;
 629         vi->vi_height = sc->height/vi->vi_cheight;
 630
 631         /*
 632          * Clamp width/height to syscons maximums
 633          */
 634         if (vi->vi_width > COL)
 635                 vi->vi_width = COL;
 636         if (vi->vi_height > ROW)
 637                 vi->vi_height = ROW;
 638
 639         sc->xmargin = (sc->width - (vi->vi_width * vi->vi_cwidth)) / 2;
 640         sc->ymargin = (sc->height - (vi->vi_height * vi->vi_cheight))/2;
 641
 642         adp->va_window = (vm_offset_t) versatilefb_static_window;
 643         adp->va_flags |= V_ADP_FONT /* | V_ADP_COLOR | V_ADP_MODECHANGE */;
 644
 645         vid_register(&sc->va);
 646
 647         return (0);
 648 }
 649
 650 static int
 651 versatilefb_get_info(video_adapter_t *adp, int mode, video_info_t *info)
 652 {
 653         bcopy(&adp->va_info, info, sizeof(*info));
 654         return (0);
 655 }
 656
 657 static int
 658 versatilefb_query_mode(video_adapter_t *adp, video_info_t *info)
 659 {
 660         return (0);
 661 }
 662
 663 static int
 664 versatilefb_set_mode(video_adapter_t *adp, int mode)
 665 {
 666         return (0);
 667 }
 668
 669 static int
 670 versatilefb_save_font(video_adapter_t *adp, int page, int size, int width,
 671     u_char *data, int c, int count)
 672 {
 673         return (0);
 674 }
 675
 676 static int
 677 versatilefb_load_font(video_adapter_t *adp, int page, int size, int width,
 678     u_char *data, int c, int count)
 679 {
 680         struct video_adapter_softc *sc = (struct video_adapter_softc *)adp;
 681
 682         sc->font = data;
 683
 684         return (0);
 685 }
 686
 687 static int
 688 versatilefb_show_font(video_adapter_t *adp, int page)
 689 {
 690         return (0);
 691 }
 692
 693 static int
 694 versatilefb_save_palette(video_adapter_t *adp, u_char *palette)
 695 {
 696         return (0);
 697 }
 698
 699 static int
 700 versatilefb_load_palette(video_adapter_t *adp, u_char *palette)
 701 {
 702         return (0);
 703 }
 704
 705 static int
 706 versatilefb_set_border(video_adapter_t *adp, int border)
 707 {
 708         return (versatilefb_blank_display(adp, border));
 709 }
 710
 711 static int
 712 versatilefb_save_state(video_adapter_t *adp, void *p, size_t size)
 713 {
 714         return (0);
 715 }
 716
 717 static int
 718 versatilefb_load_state(video_adapter_t *adp, void *p)
 719 {
 720         return (0);
 721 }
 722
 723 static int
 724 versatilefb_set_win_org(video_adapter_t *adp, off_t offset)
 725 {
 726         return (0);
 727 }
 728
 729 static int
 730 versatilefb_read_hw_cursor(video_adapter_t *adp, int *col, int *row)
 731 {
 732         *col = *row = 0;
 733
 734         return (0);
 735 }
 736
 737 static int
 738 versatilefb_set_hw_cursor(video_adapter_t *adp, int col, int row)
 739 {
 740
 741         return (0);
 742 }
 743
 744 static int
 745 versatilefb_set_hw_cursor_shape(video_adapter_t *adp, int base, int height,
 746     int celsize, int blink)
 747 {
 748         return (0);
 749 }
 750
 751 static int
 752 versatilefb_blank_display(video_adapter_t *adp, int mode)
 753 {
 754
 755         struct video_adapter_softc *sc;
 756
 757         sc = (struct video_adapter_softc *)adp;
 758         if (sc && sc->fb_addr)
 759                 memset((void*)sc->fb_addr, 0, sc->fb_size);
 760
 761         return (0);
 762 }
 763
 764 static int
 765 versatilefb_mmap(video_adapter_t *adp, vm_ooffset_t offset, vm_paddr_t *paddr,
 766     int prot, vm_memattr_t *memattr)
 767 {
 768         struct video_adapter_softc *sc;
 769
 770         sc = (struct video_adapter_softc *)adp;
 771
 772         /*
 773          * This might be a legacy VGA mem request: if so, just point it at the
 774          * framebuffer, since it shouldn't be touched
 775          */
 776         if (offset < sc->stride*sc->height) {
 777                 *paddr = sc->fb_addr + offset;
 778                 return (0);
 779         }
 780
 781         return (EINVAL);
 782 }
 783
 784 static int
 785 versatilefb_ioctl(video_adapter_t *adp, u_long cmd, caddr_t data)
 786 {
 787
 788         return (0);
 789 }
 790
 791 static int
 792 versatilefb_clear(video_adapter_t *adp)
 793 {
 794
 795         return (versatilefb_blank_display(adp, 0));
 796 }
 797
 798 static int
 799 versatilefb_fill_rect(video_adapter_t *adp, int val, int x, int y, int cx, int cy)
 800 {
 801
 802         return (0);
 803 }
 804
 805 static int
 806 versatilefb_bitblt(video_adapter_t *adp, ...)
 807 {
 808
 809         return (0);
 810 }
 811
 812 static int
 813 versatilefb_diag(video_adapter_t *adp, int level)
 814 {
 815
 816         return (0);
 817 }
 818
 819 static int
 820 versatilefb_save_cursor_palette(video_adapter_t *adp, u_char *palette)
 821 {
 822
 823         return (0);
 824 }
 825
 826 static int
 827 versatilefb_load_cursor_palette(video_adapter_t *adp, u_char *palette)
 828 {
 829
 830         return (0);
 831 }
 832
 833 static int
 834 versatilefb_copy(video_adapter_t *adp, vm_offset_t src, vm_offset_t dst, int n)
 835 {
 836
 837         return (0);
 838 }
 839
 840 static int
 841 versatilefb_putp(video_adapter_t *adp, vm_offset_t off, uint32_t p, uint32_t a,
 842     int size, int bpp, int bit_ltor, int byte_ltor)
 843 {
 844
 845         return (0);
 846 }
 847
 848 static int
 849 versatilefb_putc(video_adapter_t *adp, vm_offset_t off, uint8_t c, uint8_t a)
 850 {
 851         struct video_adapter_softc *sc;
 852         int row;
 853         int col;
 854         int i, j, k;
 855         uint8_t *addr;
 856         u_char *p;
 857         uint8_t fg, bg, color;
 858         uint16_t rgb;
 859
 860         sc = (struct video_adapter_softc *)adp;
 861
 862         if (sc->fb_addr == 0)
 863                 return (0);
 864
 865         if (off >= adp->va_info.vi_width * adp->va_info.vi_height)
 866                 return (0);
 867
 868         row = (off / adp->va_info.vi_width) * adp->va_info.vi_cheight;
 869         col = (off % adp->va_info.vi_width) * adp->va_info.vi_cwidth;
 870         p = sc->font + c*VERSATILE_FONT_HEIGHT;
 871         addr = (uint8_t *)sc->fb_addr
 872             + (row + sc->ymargin)*(sc->stride)
 873             + (sc->depth/8) * (col + sc->xmargin);
 874
 875         fg = a & 0xf ;
 876         bg = (a >> 4) & 0xf;
 877
 878         for (i = 0; i < VERSATILE_FONT_HEIGHT; i++) {
 879                 for (j = 0, k = 7; j < 8; j++, k--) {
 880                         if ((p[i] & (1 << k)) == 0)
 881                                 color = bg;
 882                         else
 883                                 color = fg;
 884
 885                         switch (sc->depth) {
 886                         case 16:
 887                                 rgb = (versatilefb_palette[color].r >> 3) << 11;
 888                                 rgb |= (versatilefb_palette[color].g >> 2) << 5;
 889                                 rgb |= (versatilefb_palette[color].b >> 3);
 890                                 addr[2*j] = rgb & 0xff;
 891                                 addr[2*j + 1] = (rgb >> 8) & 0xff;
 892                         default:
 893                                 /* Not supported yet */
 894                                 break;
 895                         }
 896                 }
 897
 898                 addr += (sc->stride);
 899         }
 900
 901         return (0);
 902 }
 903
 904 static int
 905 versatilefb_puts(video_adapter_t *adp, vm_offset_t off, u_int16_t *s, int len)
 906 {
 907         int i;
 908
 909         for (i = 0; i < len; i++)
 910                 versatilefb_putc(adp, off + i, s[i] & 0xff, (s[i] & 0xff00) >> 8);
 911
 912         return (0);
 913 }
 914
 915 static int
 916 versatilefb_putm(video_adapter_t *adp, int x, int y, uint8_t *pixel_image,
 917     uint32_t pixel_mask, int size, int width)
 918 {
 919
 920         return (0);
 921 }